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diff --git a/Documentation/CodingStyle b/Documentation/CodingStyle index a667eb1fc26..7f1730f1a1a 100644 --- a/Documentation/CodingStyle +++ b/Documentation/CodingStyle @@ -633,12 +633,27 @@ covers RTL which is used frequently with assembly language in the kernel. Kernel developers like to be seen as literate. Do mind the spelling of kernel messages to make a good impression. Do not use crippled -words like "dont" and use "do not" or "don't" instead. +words like "dont"; use "do not" or "don't" instead. Make the messages +concise, clear, and unambiguous. Kernel messages do not have to be terminated with a period. Printing numbers in parentheses (%d) adds no value and should be avoided. +There are a number of driver model diagnostic macros in <linux/device.h> +which you should use to make sure messages are matched to the right device +and driver, and are tagged with the right level: dev_err(), dev_warn(), +dev_info(), and so forth. For messages that aren't associated with a +particular device, <linux/kernel.h> defines pr_debug() and pr_info(). + +Coming up with good debugging messages can be quite a challenge; and once +you have them, they can be a huge help for remote troubleshooting. Such +messages should be compiled out when the DEBUG symbol is not defined (that +is, by default they are not included). When you use dev_dbg() or pr_debug(), +that's automatic. Many subsystems have Kconfig options to turn on -DDEBUG. +A related convention uses VERBOSE_DEBUG to add dev_vdbg() messages to the +ones already enabled by DEBUG. + Chapter 14: Allocating memory @@ -790,4 +805,5 @@ Kernel CodingStyle, by greg@kroah.com at OLS 2002: http://www.kroah.com/linux/talks/ols_2002_kernel_codingstyle_talk/html/ -- -Last updated on 2006-December-06. +Last updated on 2007-July-13. + diff --git a/Documentation/DocBook/kernel-api.tmpl b/Documentation/DocBook/kernel-api.tmpl index fd2ef4d29b6..a0af560ed74 100644 --- a/Documentation/DocBook/kernel-api.tmpl +++ b/Documentation/DocBook/kernel-api.tmpl @@ -408,6 +408,10 @@ X!Edrivers/pnp/system.c !Edrivers/pnp/manager.c !Edrivers/pnp/support.c </sect1> + <sect1><title>Userspace IO devices</title> +!Edrivers/uio/uio.c +!Iinclude/linux/uio_driver.h + </sect1> </chapter> <chapter id="blkdev"> diff --git a/Documentation/DocBook/uio-howto.tmpl b/Documentation/DocBook/uio-howto.tmpl new file mode 100644 index 00000000000..e3bb29a8d8d --- /dev/null +++ b/Documentation/DocBook/uio-howto.tmpl @@ -0,0 +1,611 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" +"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" []> + +<book id="index"> +<bookinfo> +<title>The Userspace I/O HOWTO</title> + +<author> + <firstname>Hans-Jürgen</firstname> + <surname>Koch</surname> + <authorblurb><para>Linux developer, Linutronix</para></authorblurb> + <affiliation> + <orgname> + <ulink url="http://www.linutronix.de">Linutronix</ulink> + </orgname> + + <address> + <email>hjk@linutronix.de</email> + </address> + </affiliation> +</author> + +<pubdate>2006-12-11</pubdate> + +<abstract> + <para>This HOWTO describes concept and usage of Linux kernel's + Userspace I/O system.</para> +</abstract> + +<revhistory> + <revision> + <revnumber>0.3</revnumber> + <date>2007-04-29</date> + <authorinitials>hjk</authorinitials> + <revremark>Added section about userspace drivers.</revremark> + </revision> + <revision> + <revnumber>0.2</revnumber> + <date>2007-02-13</date> + <authorinitials>hjk</authorinitials> + <revremark>Update after multiple mappings were added.</revremark> + </revision> + <revision> + <revnumber>0.1</revnumber> + <date>2006-12-11</date> + <authorinitials>hjk</authorinitials> + <revremark>First draft.</revremark> + </revision> +</revhistory> +</bookinfo> + +<chapter id="aboutthisdoc"> +<?dbhtml filename="about.html"?> +<title>About this document</title> + +<sect1 id="copyright"> +<?dbhtml filename="copyright.html"?> +<title>Copyright and License</title> +<para> + Copyright (c) 2006 by Hans-Jürgen Koch.</para> +<para> +This documentation is Free Software licensed under the terms of the +GPL version 2. +</para> +</sect1> + +<sect1 id="translations"> +<?dbhtml filename="translations.html"?> +<title>Translations</title> + +<para>If you know of any translations for this document, or you are +interested in translating it, please email me +<email>hjk@linutronix.de</email>. +</para> +</sect1> + +<sect1 id="preface"> +<title>Preface</title> + <para> + For many types of devices, creating a Linux kernel driver is + overkill. All that is really needed is some way to handle an + interrupt and provide access to the memory space of the + device. The logic of controlling the device does not + necessarily have to be within the kernel, as the device does + not need to take advantage of any of other resources that the + kernel provides. One such common class of devices that are + like this are for industrial I/O cards. + </para> + <para> + To address this situation, the userspace I/O system (UIO) was + designed. For typical industrial I/O cards, only a very small + kernel module is needed. The main part of the driver will run in + user space. This simplifies development and reduces the risk of + serious bugs within a kernel module. + </para> +</sect1> + +<sect1 id="thanks"> +<title>Acknowledgments</title> + <para>I'd like to thank Thomas Gleixner and Benedikt Spranger of + Linutronix, who have not only written most of the UIO code, but also + helped greatly writing this HOWTO by giving me all kinds of background + information.</para> +</sect1> + +<sect1 id="feedback"> +<title>Feedback</title> + <para>Find something wrong with this document? (Or perhaps something + right?) I would love to hear from you. Please email me at + <email>hjk@linutronix.de</email>.</para> +</sect1> +</chapter> + +<chapter id="about"> +<?dbhtml filename="about.html"?> +<title>About UIO</title> + +<para>If you use UIO for your card's driver, here's what you get:</para> + +<itemizedlist> +<listitem> + <para>only one small kernel module to write and maintain.</para> +</listitem> +<listitem> + <para>develop the main part of your driver in user space, + with all the tools and libraries you're used to.</para> +</listitem> +<listitem> + <para>bugs in your driver won't crash the kernel.</para> +</listitem> +<listitem> + <para>updates of your driver can take place without recompiling + the kernel.</para> +</listitem> +<listitem> + <para>if you need to keep some parts of your driver closed source, + you can do so without violating the GPL license on the kernel.</para> +</listitem> +</itemizedlist> + +<sect1 id="how_uio_works"> +<title>How UIO works</title> + <para> + Each UIO device is accessed through a device file and several + sysfs attribute files. The device file will be called + <filename>/dev/uio0</filename> for the first device, and + <filename>/dev/uio1</filename>, <filename>/dev/uio2</filename> + and so on for subsequent devices. + </para> + + <para><filename>/dev/uioX</filename> is used to access the + address space of the card. Just use + <function>mmap()</function> to access registers or RAM + locations of your card. + </para> + + <para> + Interrupts are handled by reading from + <filename>/dev/uioX</filename>. A blocking + <function>read()</function> from + <filename>/dev/uioX</filename> will return as soon as an + interrupt occurs. You can also use + <function>select()</function> on + <filename>/dev/uioX</filename> to wait for an interrupt. The + integer value read from <filename>/dev/uioX</filename> + represents the total interrupt count. You can use this number + to figure out if you missed some interrupts. + </para> + + <para> + To handle interrupts properly, your custom kernel module can + provide its own interrupt handler. It will automatically be + called by the built-in handler. + </para> + + <para> + For cards that don't generate interrupts but need to be + polled, there is the possibility to set up a timer that + triggers the interrupt handler at configurable time intervals. + See <filename>drivers/uio/uio_dummy.c</filename> for an + example of this technique. + </para> + + <para> + Each driver provides attributes that are used to read or write + variables. These attributes are accessible through sysfs + files. A custom kernel driver module can add its own + attributes to the device owned by the uio driver, but not added + to the UIO device itself at this time. This might change in the + future if it would be found to be useful. + </para> + + <para> + The following standard attributes are provided by the UIO + framework: + </para> +<itemizedlist> +<listitem> + <para> + <filename>name</filename>: The name of your device. It is + recommended to use the name of your kernel module for this. + </para> +</listitem> +<listitem> + <para> + <filename>version</filename>: A version string defined by your + driver. This allows the user space part of your driver to deal + with different versions of the kernel module. + </para> +</listitem> +<listitem> + <para> + <filename>event</filename>: The total number of interrupts + handled by the driver since the last time the device node was + read. + </para> +</listitem> +</itemizedlist> +<para> + These attributes appear under the + <filename>/sys/class/uio/uioX</filename> directory. Please + note that this directory might be a symlink, and not a real + directory. Any userspace code that accesses it must be able + to handle this. +</para> +<para> + Each UIO device can make one or more memory regions available for + memory mapping. This is necessary because some industrial I/O cards + require access to more than one PCI memory region in a driver. +</para> +<para> + Each mapping has its own directory in sysfs, the first mapping + appears as <filename>/sys/class/uio/uioX/maps/map0/</filename>. + Subsequent mappings create directories <filename>map1/</filename>, + <filename>map2/</filename>, and so on. These directories will only + appear if the size of the mapping is not 0. +</para> +<para> + Each <filename>mapX/</filename> directory contains two read-only files + that show start address and size of the memory: +</para> +<itemizedlist> +<listitem> + <para> + <filename>addr</filename>: The address of memory that can be mapped. + </para> +</listitem> +<listitem> + <para> + <filename>size</filename>: The size, in bytes, of the memory + pointed to by addr. + </para> +</listitem> +</itemizedlist> + +<para> + From userspace, the different mappings are distinguished by adjusting + the <varname>offset</varname> parameter of the + <function>mmap()</function> call. To map the memory of mapping N, you + have to use N times the page size as your offset: +</para> +<programlisting format="linespecific"> +offset = N * getpagesize(); +</programlisting> + +</sect1> +</chapter> + +<chapter id="using-uio_dummy" xreflabel="Using uio_dummy"> +<?dbhtml filename="using-uio_dummy.html"?> +<title>Using uio_dummy</title> + <para> + Well, there is no real use for uio_dummy. Its only purpose is + to test most parts of the UIO system (everything except + hardware interrupts), and to serve as an example for the + kernel module that you will have to write yourself. + </para> + +<sect1 id="what_uio_dummy_does"> +<title>What uio_dummy does</title> + <para> + The kernel module <filename>uio_dummy.ko</filename> creates a + device that uses a timer to generate periodic interrupts. The + interrupt handler does nothing but increment a counter. The + driver adds two custom attributes, <varname>count</varname> + and <varname>freq</varname>, that appear under + <filename>/sys/devices/platform/uio_dummy/</filename>. + </para> + + <para> + The attribute <varname>count</varname> can be read and + written. The associated file + <filename>/sys/devices/platform/uio_dummy/count</filename> + appears as a normal text file and contains the total number of + timer interrupts. If you look at it (e.g. using + <function>cat</function>), you'll notice it is slowly counting + up. + </para> + + <para> + The attribute <varname>freq</varname> can be read and written. + The content of + <filename>/sys/devices/platform/uio_dummy/freq</filename> + represents the number of system timer ticks between two timer + interrupts. The default value of <varname>freq</varname> is + the value of the kernel variable <varname>HZ</varname>, which + gives you an interval of one second. Lower values will + increase the frequency. Try the following: + </para> +<programlisting format="linespecific"> +cd /sys/devices/platform/uio_dummy/ +echo 100 > freq +</programlisting> + <para> + Use <function>cat count</function> to see how the interrupt + frequency changes. + </para> +</sect1> +</chapter> + +<chapter id="custom_kernel_module" xreflabel="Writing your own kernel module"> +<?dbhtml filename="custom_kernel_module.html"?> +<title>Writing your own kernel module</title> + <para> + Please have a look at <filename>uio_dummy.c</filename> as an + example. The following paragraphs explain the different + sections of this file. + </para> + +<sect1 id="uio_info"> +<title>struct uio_info</title> + <para> + This structure tells the framework the details of your driver, + Some of the members are required, others are optional. + </para> + +<itemizedlist> +<listitem><para> +<varname>char *name</varname>: Required. The name of your driver as +it will appear in sysfs. I recommend using the name of your module for this. +</para></listitem> + +<listitem><para> +<varname>char *version</varname>: Required. This string appears in +<filename>/sys/class/uio/uioX/version</filename>. +</para></listitem> + +<listitem><para> +<varname>struct uio_mem mem[ MAX_UIO_MAPS ]</varname>: Required if you +have memory that can be mapped with <function>mmap()</function>. For each +mapping you need to fill one of the <varname>uio_mem</varname> structures. +See the description below for details. +</para></listitem> + +<listitem><para> +<varname>long irq</varname>: Required. If your hardware generates an +interrupt, it's your modules task to determine the irq number during +initialization. If you don't have a hardware generated interrupt but +want to trigger the interrupt handler in some other way, set +<varname>irq</varname> to <varname>UIO_IRQ_CUSTOM</varname>. The +uio_dummy module does this as it triggers the event mechanism in a timer +routine. If you had no interrupt at all, you could set +<varname>irq</varname> to <varname>UIO_IRQ_NONE</varname>, though this +rarely makes sense. +</para></listitem> + +<listitem><para> +<varname>unsigned long irq_flags</varname>: Required if you've set +<varname>irq</varname> to a hardware interrupt number. The flags given +here will be used in the call to <function>request_irq()</function>. +</para></listitem> + +<listitem><para> +<varname>int (*mmap)(struct uio_info *info, struct vm_area_struct +*vma)</varname>: Optional. If you need a special +<function>mmap()</function> function, you can set it here. If this +pointer is not NULL, your <function>mmap()</function> will be called +instead of the built-in one. +</para></listitem> + +<listitem><para> +<varname>int (*open)(struct uio_info *info, struct inode *inode) +</varname>: Optional. You might want to have your own +<function>open()</function>, e.g. to enable interrupts only when your +device is actually used. +</para></listitem> + +<listitem><para> +<varname>int (*release)(struct uio_info *info, struct inode *inode) +</varname>: Optional. If you define your own +<function>open()</function>, you will probably also want a custom +<function>release()</function> function. +</para></listitem> +</itemizedlist> + +<para> +Usually, your device will have one or more memory regions that can be mapped +to user space. For each region, you have to set up a +<varname>struct uio_mem</varname> in the <varname>mem[]</varname> array. +Here's a description of the fields of <varname>struct uio_mem</varname>: +</para> + +<itemizedlist> +<listitem><para> +<varname>int memtype</varname>: Required if the mapping is used. Set this to +<varname>UIO_MEM_PHYS</varname> if you you have physical memory on your +card to be mapped. Use <varname>UIO_MEM_LOGICAL</varname> for logical +memory (e.g. allocated with <function>kmalloc()</function>). There's also +<varname>UIO_MEM_VIRTUAL</varname> for virtual memory. +</para></listitem> + +<listitem><para> +<varname>unsigned long addr</varname>: Required if the mapping is used. +Fill in the address of your memory block. This address is the one that +appears in sysfs. +</para></listitem> + +<listitem><para> +<varname>unsigned long size</varname>: Fill in the size of the +memory block that <varname>addr</varname> points to. If <varname>size</varname> +is zero, the mapping is considered unused. Note that you +<emphasis>must</emphasis> initialize <varname>size</varname> with zero for +all unused mappings. +</para></listitem> + +<listitem><para> +<varname>void *internal_addr</varname>: If you have to access this memory +region from within your kernel module, you will want to map it internally by +using something like <function>ioremap()</function>. Addresses +returned by this function cannot be mapped to user space, so you must not +store it in <varname>addr</varname>. Use <varname>internal_addr</varname> +instead to remember such an address. +</para></listitem> +</itemizedlist> + +<para> +Please do not touch the <varname>kobj</varname> element of +<varname>struct uio_mem</varname>! It is used by the UIO framework +to set up sysfs files for this mapping. Simply leave it alone. +</para> +</sect1> + +<sect1 id="adding_irq_handler"> +<title>Adding an interrupt handler</title> + <para> + What you need to do in your interrupt handler depends on your + hardware and on how you want to handle it. You should try to + keep the amount of code in your kernel interrupt handler low. + If your hardware requires no action that you + <emphasis>have</emphasis> to perform after each interrupt, + then your handler can be empty.</para> <para>If, on the other + hand, your hardware <emphasis>needs</emphasis> some action to + be performed after each interrupt, then you + <emphasis>must</emphasis> do it in your kernel module. Note + that you cannot rely on the userspace part of your driver. Your + userspace program can terminate at any time, possibly leaving + your hardware in a state where proper interrupt handling is + still required. + </para> + + <para> + There might also be applications where you want to read data + from your hardware at each interrupt and buffer it in a piece + of kernel memory you've allocated for that purpose. With this + technique you could avoid loss of data if your userspace + program misses an interrupt. + </para> + + <para> + A note on shared interrupts: Your driver should support + interrupt sharing whenever this is possible. It is possible if + and only if your driver can detect whether your hardware has + triggered the interrupt or not. This is usually done by looking + at an interrupt status register. If your driver sees that the + IRQ bit is actually set, it will perform its actions, and the + handler returns IRQ_HANDLED. If the driver detects that it was + not your hardware that caused the interrupt, it will do nothing + and return IRQ_NONE, allowing the kernel to call the next + possible interrupt handler. + </para> + + <para> + If you decide not to support shared interrupts, your card + won't work in computers with no free interrupts. As this + frequently happens on the PC platform, you can save yourself a + lot of trouble by supporting interrupt sharing. + </para> +</sect1> + +</chapter> + +<chapter id="userspace_driver" xreflabel="Writing a driver in user space"> +<?dbhtml filename="userspace_driver.html"?> +<title>Writing a driver in userspace</title> + <para> + Once you have a working kernel module for your hardware, you can + write the userspace part of your driver. You don't need any special + libraries, your driver can be written in any reasonable language, + you can use floating point numbers and so on. In short, you can + use all the tools and libraries you'd normally use for writing a + userspace application. + </para> + +<sect1 id="getting_uio_information"> +<title>Getting information about your UIO device</title> + <para> + Information about all UIO devices is available in sysfs. The + first thing you should do in your driver is check + <varname>name</varname> and <varname>version</varname> to + make sure your talking to the right device and that its kernel + driver has the version you expect. + </para> + <para> + You should also make sure that the memory mapping you need + exists and has the size you expect. + </para> + <para> + There is a tool called <varname>lsuio</varname> that lists + UIO devices and their attributes. It is available here: + </para> + <para> + <ulink url="http://www.osadl.org/projects/downloads/UIO/user/"> + http://www.osadl.org/projects/downloads/UIO/user/</ulink> + </para> + <para> + With <varname>lsuio</varname> you can quickly check if your + kernel module is loaded and which attributes it exports. + Have a look at the manpage for details. + </para> + <para> + The source code of <varname>lsuio</varname> can serve as an + example for getting information about an UIO device. + The file <filename>uio_helper.c</filename> contains a lot of + functions you could use in your userspace driver code. + </para> +</sect1> + +<sect1 id="mmap_device_memory"> +<title>mmap() device memory</title> + <para> + After you made sure you've got the right device with the + memory mappings you need, all you have to do is to call + <function>mmap()</function> to map the device's memory + to userspace. + </para> + <para> + The parameter <varname>offset</varname> of the + <function>mmap()</function> call has a special meaning + for UIO devices: It is used to select which mapping of + your device you want to map. To map the memory of + mapping N, you have to use N times the page size as + your offset: + </para> +<programlisting format="linespecific"> + offset = N * getpagesize(); +</programlisting> + <para> + N starts from zero, so if you've got only one memory + range to map, set <varname>offset = 0</varname>. + A drawback of this technique is that memory is always + mapped beginning with its start address. + </para> +</sect1> + +<sect1 id="wait_for_interrupts"> +<title>Waiting for interrupts</title> + <para> + After you successfully mapped your devices memory, you + can access it like an ordinary array. Usually, you will + perform some initialization. After that, your hardware + starts working and will generate an interrupt as soon + as it's finished, has some data available, or needs your + attention because an error occured. + </para> + <para> + <filename>/dev/uioX</filename> is a read-only file. A + <function>read()</function> will always block until an + interrupt occurs. There is only one legal value for the + <varname>count</varname> parameter of + <function>read()</function>, and that is the size of a + signed 32 bit integer (4). Any other value for + <varname>count</varname> causes <function>read()</function> + to fail. The signed 32 bit integer read is the interrupt + count of your device. If the value is one more than the value + you read the last time, everything is OK. If the difference + is greater than one, you missed interrupts. + </para> + <para> + You can also use <function>select()</function> on + <filename>/dev/uioX</filename>. + </para> +</sect1> + +</chapter> + +<appendix id="app1"> +<title>Further information</title> +<itemizedlist> + <listitem><para> + <ulink url="http://www.osadl.org"> + OSADL homepage.</ulink> + </para></listitem> + <listitem><para> + <ulink url="http://www.linutronix.de"> + Linutronix homepage.</ulink> + </para></listitem> +</itemizedlist> +</appendix> + +</book> diff --git a/Documentation/HOWTO b/Documentation/HOWTO index 98e2701c746..f8cc3f8ed15 100644 --- a/Documentation/HOWTO +++ b/Documentation/HOWTO @@ -249,6 +249,9 @@ process is as follows: release a new -rc kernel every week. - Process continues until the kernel is considered "ready", the process should last around 6 weeks. + - A list of known regressions present in each -rc release is + tracked at the following URI: + http://kernelnewbies.org/known_regressions It is worth mentioning what Andrew Morton wrote on the linux-kernel mailing list about kernel releases: diff --git a/Documentation/driver-model/devres.txt b/Documentation/driver-model/devres.txt index 6c8d8f27db3..8569072fa38 100644 --- a/Documentation/driver-model/devres.txt +++ b/Documentation/driver-model/devres.txt @@ -207,7 +207,7 @@ responsibility. This is usually non-issue because bus ops and resource allocations already do the job. For an example of single-instance devres type, read pcim_iomap_table() -in lib/iomap.c. +in lib/devres.c. All devres interface functions can be called without context if the right gfp mask is given. diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index d05e6243b4d..66c8b4b165c 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -26,9 +26,7 @@ Who: Hans Verkuil <hverkuil@xs4all.nl> and --------------------------- -What: /sys/devices/.../power/state - dev->power.power_state - dpm_runtime_{suspend,resume)() +What: dev->power.power_state When: July 2007 Why: Broken design for runtime control over driver power states, confusing driver-internal runtime power management with: mechanisms to support @@ -310,3 +308,13 @@ Why: The arch/powerpc tree is the merged architecture for ppc32 and ppc64 Who: linuxppc-dev@ozlabs.org --------------------------- + +What: mthca driver's MSI support +When: January 2008 +Files: drivers/infiniband/hw/mthca/*.[ch] +Why: All mthca hardware also supports MSI-X, which provides + strictly more functionality than MSI. So there is no point in + having both MSI-X and MSI support in the driver. +Who: Roland Dreier <rolandd@cisco.com> + +--------------------------- diff --git a/Documentation/ja_JP/HOWTO b/Documentation/ja_JP/HOWTO new file mode 100644 index 00000000000..b2446a09087 --- /dev/null +++ b/Documentation/ja_JP/HOWTO @@ -0,0 +1,650 @@ +NOTE: +This is Japanese translated version of "Documentation/HOWTO". +This one is maintained by Tsugikazu Shibata <tshibata@ab.jp.nec.com> +and JF Project team <www.linux.or.jp/JF>. +If you find difference with original file or problem in translation, +please contact maintainer of this file or JF project. + +Please also note that purpose of this file is easier to read for non +English natives and not to be intended to fork. So, if you have any +comments or updates of this file, please try to update Original(English) +file at first. + +Last Updated: 2007/06/04 +================================== +これは、 +linux-2.6.21/Documentation/HOWTO +の和訳です。 + +翻訳団体： JF プロジェクト < http://www.linux.or.jp/JF/ > +翻訳日： 2007/06/04 +翻訳者： Tsugikazu Shibata <tshibata at ab dot jp dot nec dot com> +校正者： 松倉さん <nbh--mats at nifty dot com> + 小林 雅典さん (Masanori Kobayasi) <zap03216 at nifty dot ne dot jp> + 武井伸光さん、<takei at webmasters dot gr dot jp> + かねこさん (Seiji Kaneko) <skaneko at a2 dot mbn dot or dot jp> + 野口さん (Kenji Noguchi) <tokyo246 at gmail dot com> + 河内さん (Takayoshi Kochi) <t-kochi at bq dot jp dot nec dot com> + 岩本さん (iwamoto) <iwamoto.kn at ncos dot nec dot co dot jp> +================================== + +Linux カーネル開発のやり方 +------------------------------- + +これは上のトピック( Linux カーネル開発のやり方)の重要な事柄を網羅した +ドキュメントです。ここには Linux カーネル開発者になるための方法と +Linux カーネル開発コミュニティと共に活動するやり方を学ぶ方法が含まれて +います。カーネルプログラミングに関する技術的な項目に関することは何も含 +めないようにしていますが、カーネル開発者となるための正しい方向に向かう +手助けになります。 + +もし、このドキュメントのどこかが古くなっていた場合には、このドキュメン +トの最後にリストしたメンテナーにパッチを送ってください。 + +はじめに +--------- + +あなたは Linux カーネルの開発者になる方法を学びたいのでしょうか？ そ +れともあなたは上司から「このデバイスの Linux ドライバを書くように」と +言われているのでしょうか？ +この文書の目的は、あなたが踏むべき手順と、コミュニティと一緒にうまく働 +くヒントを書き下すことで、あなたが知るべき全てのことを教えることです。 +また、このコミュニティがなぜ今うまくまわっているのかという理由の一部も +説明しようと試みています。 + +カーネルは 少量のアーキテクチャ依存部分がアセンブリ言語で書かれている +以外は大部分は C 言語で書かれています。C言語をよく理解していることはカー +ネル開発者には必要です。アーキテクチャ向けの低レベル部分の開発をするの +でなければ、(どんなアーキテクチャでも)アセンブリ(訳注: 言語)は必要あり +ません。以下の本は、C 言語の十分な知識や何年もの経験に取って代わるもの +ではありませんが、少なくともリファレンスとしてはいい本です。 + - "The C Programming Language" by Kernighan and Ritchie [Prentice Hall] + -『プログラミング言語Ｃ第2版』(B.W. カーニハン/D.M. リッチー著 石田晴久訳) [共立出版] + - "Practical C Programming" by Steve Oualline [O'Reilly] + - 『C実践プログラミング第3版』(Steve Oualline著 望月康司監訳 谷口功訳) [オライリージャパン] + - "C: A Reference Manual" by Harbison and Steele [Prentice Hall] + - 『新・詳説 C 言語 H&S リファレンス』 + (サミュエル P ハービソン/ガイ L スティール共著 斉藤 信男監訳)[ソフトバンク] + +カーネルは GNU C と GNU ツールチェインを使って書かれています。カーネル +は ISO C89 仕様に準拠して書く一方で、標準には無い言語拡張を多く使って +います。カーネルは標準 C ライブラリとは関係がないといった、C 言語フリー +スタンディング環境です。そのため、C の標準で使えないものもあります。任 +意の long long の除算や浮動小数点は使えません。 +ときどき、カーネルがツールチェインや C 言語拡張に置いている前提がどう +なっているのかわかりにくいことがあり、また、残念なことに決定的なリファ +レンスは存在しません。情報を得るには、gcc の info ページ( info gcc )を +みてください。 + +あなたは既存の開発コミュニティと一緒に作業する方法を学ぼうとしているこ +とに留意してください。そのコミュニティは、コーディング、スタイル、 +開発手順について高度な標準を持つ、多様な人の集まりです。 +地理的に分散した大規模なチームに対してもっともうまくいくとわかったこと +をベースにしながら、これらの標準は長い時間をかけて築かれてきました。 +これらはきちんと文書化されていますから、事前にこれらの標準についてでき +るだけたくさん学んでください。また皆があなたやあなたの会社のやり方に合わ +せてくれると思わないでください。 + +法的問題 +------------ + +Linux カーネルのソースコードは GPL ライセンスの下でリリースされていま +す。ライセンスの詳細については、ソースツリーのメインディレクトリに存在 +する、COPYING のファイルをみてください。もしライセンスについてさらに質 +問があれば、Linux Kernel メーリングリストに質問するのではなく、どうぞ +法律家に相談してください。メーリングリストの人達は法律家ではなく、法的 +問題については彼らの声明はあてにするべきではありません。 + +GPL に関する共通の質問や回答については、以下を参照してください。 + http://www.gnu.org/licenses/gpl-faq.html + +ドキュメント +------------ + +Linux カーネルソースツリーは幅広い範囲のドキュメントを含んでおり、それ +らはカーネルコミュニティと会話する方法を学ぶのに非常に貴重なものです。 +新しい機能がカーネルに追加される場合、その機能の使い方について説明した +新しいドキュメントファイルも追加することを勧めます。 +カーネルの変更が、カーネルがユーザ空間に公開しているインターフェイスの +変更を引き起こす場合、その変更を説明するマニュアルページのパッチや情報 +をマニュアルページのメンテナ mtk-manpages@gmx.net に送ることを勧めます。 + +以下はカーネルソースツリーに含まれている読んでおくべきファイルの一覧で +す- + + README + このファイルは Linuxカーネルの簡単な背景とカーネルを設定(訳注 + configure )し、生成(訳注 build )するために必要なことは何かが書かれ + ています。カーネルに関して初めての人はここからスタートするとよいで + しょう。 + + Documentation/Changes + このファイルはカーネルをうまく生成(訳注 build )し、走らせるのに最 + 小限のレベルで必要な数々のソフトウェアパッケージの一覧を示してい + ます。 + + Documentation/CodingStyle + これは Linux カーネルのコーディングスタイルと背景にある理由を記述 + しています。全ての新しいコードはこのドキュメントにあるガイドライン + に従っていることを期待されています。大部分のメンテナーはこれらのルー + ルに従っているものだけを受け付け、多くの人は正しいスタイルのコード + だけをレビューします。 + + Documentation/SubmittingPatches + Documentation/SubmittingDrivers + これらのファイルには、どうやってうまくパッチを作って投稿するかに + ついて非常に詳しく書かれており、以下を含みます(これだけに限らない + けれども) + - Email に含むこと + - Email の形式 + - だれに送るか + これらのルールに従えばうまくいくことを保証することではありません + が (すべてのパッチは内容とスタイルについて精査を受けるので)、 + ルールに従わなければ間違いなくうまくいかないでしょう。 + この他にパッチを作る方法についてのよくできた記述は- + + "The Perfect Patch" + http://www.zip.com.au/~akpm/linux/patches/stuff/tpp.txt + "Linux kernel patch submission format" + http://linux.yyz.us/patch-format.html + + Documentation/stable_api_nonsense.txt + このファイルはカーネルの中に不変のAPIを持たないことにした意識的な + 決断の背景にある理由について書かれています。以下のようなことを含 + んでいます- + - サブシステムとの間に層を作ること(コンパチビリティのため?) + - オペレーティングシステム間のドライバの移植性 + - カーネルソースツリーの素早い変更を遅らせる(もしくは素早い変更 + を妨げる) + このドキュメントは Linux 開発の思想を理解するのに非常に重要です。 + そして、他のOSでの開発者が Linux に移る時にとても重要です。 + + Documentation/SecurityBugs + もし Linux カーネルでセキュリティ問題を発見したように思ったら、こ + のドキュメントのステップに従ってカーネル開発者に連絡し、問題解決を + 支援してください。 + + Documentation/ManagementStyle + このドキュメントは Linux カーネルのメンテナー達がどう行動するか、 + 彼らの手法の背景にある共有されている精神について記述しています。こ + れはカーネル開発の初心者なら（もしくは、単に興味があるだけの人でも） + 重要です。なぜならこのドキュメントは、カーネルメンテナー達の独特な + 行動についての多くの誤解や混乱を解消するからです。 + + Documentation/stable_kernel_rules.txt + このファイルはどのように stable カーネルのリリースが行われるかのルー + ルが記述されています。そしてこれらのリリースの中のどこかで変更を取 + り入れてもらいたい場合に何をすればいいかが示されています。 + + Documentation/kernel-docs.txt + カーネル開発に付随する外部ドキュメントのリストです。もしあなたが + 探しているものがカーネル内のドキュメントでみつからなかった場合、 + このリストをあたってみてください。 + + Documentation/applying-patches.txt + パッチとはなにか、パッチをどうやって様々なカーネルの開発ブランチに + 適用するのかについて正確に記述した良い入門書です。 + +カーネルはソースコードから自動的に生成可能な多数のドキュメントを自分自 +身でもっています。これにはカーネル内 API のすべての記述や、どう正しく +ロックをかけるかの規則が含まれます。このドキュメントは +Documentation/DocBook/ ディレクトリに作られ、以下のように + make pdfdocs + make psdocs + make htmldocs + make mandocs +コマンドを実行するとメインカーネルのソースディレクトリから +それぞれ、PDF, Postscript, HTML, man page の形式で生成されます。 + +カーネル開発者になるには +--------------------------- + +もしあなたが、Linux カーネル開発について何も知らないならば、 +KernelNewbies プロジェクトを見るべきです + http://kernelnewbies.org + +このサイトには役に立つメーリングリストがあり、基本的なカーネル開発に関 +するほとんどどんな種類の質問もできます (既に回答されているようなことを +聞く前にまずはアーカイブを調べてください)。 +またここには、リアルタイムで質問を聞くことができる IRC チャネルや、Linux +カーネルの開発に関して学ぶのに便利なたくさんの役に立つドキュメントがあ +ります。 + +web サイトには、コードの構成、サブシステム、現在存在するプロジェクト(ツ +リーにあるもの無いものの両方)の基本的な管理情報があります。 +ここには、また、カーネルのコンパイルのやり方やパッチの当て方などの間接 +的な基本情報も記述されています。 + +あなたがどこからスタートしてよいかわからないが、Linux カーネル開発コミュ +ニティに参加して何かすることをさがしている場合には、Linux kernel +Janitor's プロジェクトにいけばよいでしょう - + http://janitor.kernelnewbies.org/ +ここはそのようなスタートをするのにうってつけの場所です。ここには、 +Linux カーネルソースツリーの中に含まれる、きれいにし、修正しなければな +らない、単純な問題のリストが記述されています。このプロジェクトに関わる +開発者と一緒に作業することで、あなたのパッチを Linuxカーネルツリーに入 +れるための基礎を学ぶことができ、そしてもしあなたがまだアイディアを持っ +ていない場合には、次にやる仕事の方向性が見えてくるかもしれません。 + +もしあなたが、すでにひとまとまりコードを書いていて、カーネルツリーに入 +れたいと思っていたり、それに関する適切な支援を求めたい場合、カーネル +メンターズプロジェクトはそのような皆さんを助けるためにできました。 +ここにはメーリングリストがあり、以下から参照できます + http://selenic.com/mailman/listinfo/kernel-mentors + +実際に Linux カーネルのコードについて修正を加える前に、どうやってその +コードが動作するのかを理解することが必要です。そのためには、特別なツー +ルの助けを借りてでも、それを直接よく読むことが最良の方法です(ほとんど +のトリッキーな部分は十分にコメントしてありますから)。そういうツールで +特におすすめなのは、Linux クロスリファレンスプロジェクトです。これは、 +自己参照方式で、索引がついた web 形式で、ソースコードを参照することが +できます。この最新の素晴しいカーネルコードのリポジトリは以下で見つかり +ます- + http://sosdg.org/~coywolf/lxr/ + +開発プロセス +----------------------- + +Linux カーネルの開発プロセスは現在幾つかの異なるメインカーネル「ブラン +チ」と多数のサブシステム毎のカーネルブランチから構成されます。 +これらのブランチとは- + - メインの 2.6.x カーネルツリー + - 2.6.x.y -stable カーネルツリー + - 2.6.x -git カーネルパッチ + - 2.6.x -mm カーネルパッチ + - サブシステム毎のカーネルツリーとパッチ + +2.6.x カーネルツリー +----------------- + +2.6.x カーネルは Linus Torvalds によってメンテナンスされ、kernel.org +の pub/linux/kernel/v2.6/ ディレクトリに存在します。この開発プロセスは +以下のとおり- + + - 新しいカーネルがリリースされた直後に、2週間の特別期間が設けられ、 + この期間中に、メンテナー達は Linus に大きな差分を送ることができま + す。このような差分は通常 -mm カーネルに数週間含まれてきたパッチで + す。 大きな変更は git(カーネルのソース管理ツール、詳細は + http://git.or.cz/ 参照) を使って送るのが好ましいやり方ですが、パッ + チファイルの形式のまま送るのでも十分です。 + + - 2週間後、-rc1 カーネルがリリースされ、この後にはカーネル全体の安定 + 性に影響をあたえるような新機能は含まない類のパッチしか取り込むこと + はできません。新しいドライバ(もしくはファイルシステム)のパッチは + -rc1 の後で受け付けられることもあることを覚えておいてください。な + ぜなら、変更が独立していて、追加されたコードの外の領域に影響を与え + ない限り、退行のリスクは無いからです。-rc1 がリリースされた後、 + Linus へパッチを送付するのに git を使うこともできますが、パッチは + レビューのために、パブリックなメーリングリストへも同時に送る必要が + あります。 + + - 新しい -rc は Linus が、最新の git ツリーがテスト目的であれば十分 + に安定した状態にあると判断したときにリリースされます。目標は毎週新 + しい -rc カーネルをリリースすることです。 + + - このプロセスはカーネルが 「準備ができた」と考えられるまで継続しま + す。このプロセスはだいたい 6週間継続します。 + +Andrew Morton が Linux-kernel メーリングリストにカーネルリリースについ +て書いたことをここで言っておくことは価値があります- + 「カーネルがいつリリースされるかは誰も知りません。なぜなら、これは現 + 実に認識されたバグの状況によりリリースされるのであり、前もって決めら + れた計画によってリリースされるものではないからです。」 + +2.6.x.y -stable カーネルツリー +--------------------------- + +バージョンに4つ目の数字がついたカーネルは -stable カーネルです。これに +は、2.6.x カーネルで見つかったセキュリティ問題や重大な後戻りに対する比 +較的小さい重要な修正が含まれます。 + +これは、開発/実験的バージョンのテストに協力することに興味が無く、 +最新の安定したカーネルを使いたいユーザに推奨するブランチです。 + +もし、2.6.x.y カーネルが存在しない場合には、番号が一番大きい 2.6.x +が最新の安定版カーネルです。 + +2.6.x.y は "stable" チーム <stable@kernel.org> でメンテされており、だ +いたい隔週でリリースされています。 + +カーネルツリーに入っている、Documentation/stable_kernel_rules.txt ファ +イルにはどのような種類の変更が -stable ツリーに受け入れ可能か、またリ +リースプロセスがどう動くかが記述されています。 + +2.6.x -git パッチ +------------------ + +git リポジトリで管理されているLinus のカーネルツリーの毎日のスナップ +ショットがあります。(だから -git という名前がついています)。これらのパッ +チはおおむね毎日リリースされており、Linus のツリーの現状を表します。こ +れは -rc カーネルと比べて、パッチが大丈夫かどうかも確認しないで自動的 +に生成されるので、より実験的です。 + +2.6.x -mm カーネルパッチ +------------------------ + +Andrew Morton によってリリースされる実験的なカーネルパッチ群です。 +Andrew は個別のサブシステムカーネルツリーとパッチを全て集めてきて +linux-kernel メーリングリストで収集された多数のパッチと同時に一つにま +とめます。 +このツリーは新機能とパッチが検証される場となります。ある期間の間パッチ +が -mm に入って価値を証明されたら、Andrew やサブシステムメンテナが、メ +インラインへ入れるように Linus にプッシュします。 + +メインカーネルツリーに含めるために Linus に送る前に、すべての新しいパッ +チが -mm ツリーでテストされることが強く推奨されます。 + +これらのカーネルは安定して動作すべきシステムとして使うのには適切ではあ +りませんし、カーネルブランチの中でももっとも動作にリスクが高いものです。 + +もしあなたが、カーネル開発プロセスの支援をしたいと思っているのであれば、 +どうぞこれらのカーネルリリースをテストに使ってみて、そしてもし問題があ +れば、またもし全てが正しく動作したとしても、linux-kernel メーリングリ +ストにフィードバックを提供してください。 + +すべての他の実験的パッチに加えて、これらのカーネルは通常リリース時点で +メインラインの -git カーネルに含まれる全ての変更も含んでいます。 + +-mm カーネルは決まったスケジュールではリリースされません、しかし通常幾 +つかの -mm カーネル (1 から 3 が普通）が各-rc カーネルの間にリリースさ +れます。 + +サブシステム毎のカーネルツリーとパッチ +------------------------------------------- + +カーネルの様々な領域で何が起きているかを見られるようにするため、多くの +カーネルサブシステム開発者は彼らの開発ツリーを公開しています。これらの +ツリーは説明したように -mm カーネルリリースに入れ込まれます。 + +以下はさまざまなカーネルツリーの中のいくつかのリスト- + + git ツリー- + - Kbuild の開発ツリー、Sam Ravnborg <sam@ravnborg.org> + kernel.org:/pub/scm/linux/kernel/git/sam/kbuild.git + + - ACPI の開発ツリー、 Len Brown <len.brown@intel.com> + kernel.org:/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git + + - Block の開発ツリー、Jens Axboe <axboe@suse.de> + kernel.org:/pub/scm/linux/kernel/git/axboe/linux-2.6-block.git + + - DRM の開発ツリー、Dave Airlie <airlied@linux.ie> + kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6.git + + - ia64 の開発ツリー、Tony Luck <tony.luck@intel.com> + kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6.git + + - ieee1394 の開発ツリー、Jody McIntyre <scjody@modernduck.com> + kernel.org:/pub/scm/linux/kernel/git/scjody/ieee1394.git + + - infiniband, Roland Dreier <rolandd@cisco.com> + kernel.org:/pub/scm/linux/kernel/git/roland/infiniband.git + + - libata, Jeff Garzik <jgarzik@pobox.com> + kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev.git + + - ネットワークドライバ, Jeff Garzik <jgarzik@pobox.com> + kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6.git + + - pcmcia, Dominik Brodowski <linux@dominikbrodowski.net> + kernel.org:/pub/scm/linux/kernel/git/brodo/pcmcia-2.6.git + + - SCSI, James Bottomley <James.Bottomley@SteelEye.com> + kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6.git + + その他の git カーネルツリーは http://kernel.org/git に一覧表がありま + す。 + + quilt ツリー- + - USB, PCI ドライバコアと I2C, Greg Kroah-Hartman <gregkh@suse.de> + kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/ + +バグレポート +------------- + +bugzilla.kernel.org は Linux カーネル開発者がカーネルのバグを追跡する +場所です。ユーザは見つけたバグの全てをこのツールで報告すべきです。 +どう kernel bugzilla を使うかの詳細は、以下を参照してください- + http://test.kernel.org/bugzilla/faq.html + +メインカーネルソースディレクトリにあるファイル REPORTING-BUGS はカーネ +ルバグらしいものについてどうレポートするかの良いテンプレートであり、問 +題の追跡を助けるためにカーネル開発者にとってどんな情報が必要なのかの詳 +細が書かれています。 + +メーリングリスト +------------- + +上のいくつかのドキュメントで述べていますが、コアカーネル開発者の大部分 +は Linux kernel メーリングリストに参加しています。このリストの登録/脱 +退の方法については以下を参照してください- + http://vger.kernel.org/vger-lists.html#linux-kernel + +このメーリングリストのアーカイブは web 上の多数の場所に存在します。こ +れらのアーカイブを探すにはサーチエンジンを使いましょう。例えば- + http://dir.gmane.org/gmane.linux.kernel + +リストに投稿する前にすでにその話題がアーカイブに存在するかどうかを検索 +することを是非やってください。多数の事がすでに詳細に渡って議論されて +おり、アーカイブにのみ記録されています。 + +大部分のカーネルサブシステムも自分の個別の開発を実施するメーリングリス +トを持っています。個々のグループがどんなリストを持っているかは、 +MAINTAINERS ファイルにリストがありますので参照してください。 + +多くのリストは kernel.org でホストされています。これらの情報は以下にあ +ります- + http://vger.kernel.org/vger-lists.html + +メーリングリストを使う場合、良い行動習慣に従うようにしましょう。 +少し安っぽいが、以下の URL は上のリスト(や他のリスト)で会話する場合の +シンプルなガイドラインを示しています- + http://www.albion.com/netiquette/ + +もし複数の人があなたのメールに返事をした場合、CC: で受ける人のリストは +だいぶ多くなるでしょう。良い理由がない場合、CC: リストから誰かを削除を +しないように、また、メーリングリストのアドレスだけにリプライすることの +ないようにしましょう。1つは送信者から、もう1つはリストからのように、メー +ルを2回受けることになってもそれに慣れ、しゃれたメールヘッダーを追加し +てこの状態を変えようとしないように。人々はそのようなことは好みません。 + +今までのメールでのやりとりとその間のあなたの発言はそのまま残し、 +"John Kernlehacker wrote ...:" の行をあなたのリプライの先頭行にして、 +メールの先頭でなく、各引用行の間にあなたの言いたいことを追加するべきで +す。 + +もしパッチをメールに付ける場合は、Documentaion/SubmittingPatches に提 +示されているように、それは プレーンな可読テキストにすることを忘れない +ようにしましょう。カーネル開発者は 添付や圧縮したパッチを扱いたがりま +せん- +彼らはあなたのパッチの行毎にコメントを入れたいので、そのためにはそうす +るしかありません。あなたのメールプログラムが空白やタブを圧縮しないよう +に確認した方がいいです。最初の良いテストとしては、自分にメールを送って +みて、そのパッチを自分で当ててみることです。もしそれがうまく行かないな +ら、あなたのメールプログラムを直してもらうか、正しく動くように変えるべ +きです。 + +とりわけ、他の登録者に対する尊敬を表すようにすることを覚えておいてくだ +さい。 + +コミュニティと共に働くこと +-------------------------- + +カーネルコミュニティのゴールは可能なかぎり最高のカーネルを提供すること +です。あなたがパッチを受け入れてもらうために投稿した場合、それは、技術 +的メリットだけがレビューされます。その際、あなたは何を予想すべきでしょ +うか? + - 批判 + - コメント + - 変更の要求 + - パッチの正当性の証明要求 + - 沈黙 + +思い出してください、ここはあなたのパッチをカーネルに入れる話です。あ +なたは、あなたのパッチに対する批判とコメントを受け入れるべきで、それら +を技術的レベルで評価して、パッチを再作成するか、なぜそれらの変更をすべ +きでないかを明確で簡潔な理由の説明を提供してください。 +もし、あなたのパッチに何も反応がない場合、たまにはメールの山に埋もれて +見逃され、あなたの投稿が忘れられてしまうこともあるので、数日待って再度 +投稿してください。 + +あなたがやるべきでないものは? + - 質問なしにあなたのパッチが受け入れられると想像すること + - 守りに入ること + - コメントを無視すること + - 要求された変更を何もしないでパッチを出し直すこと + +可能な限り最高の技術的解決を求めているコミュニティでは、パッチがどのく +らい有益なのかについては常に異なる意見があります。あなたは協調的である +べきですし、また、あなたのアイディアをカーネルに対してうまく合わせるよ +うにすることが望まれています。もしくは、最低限あなたのアイディアがそれ +だけの価値があるとすすんで証明するようにしなければなりません。 +正しい解決に向かって進もうという意志がある限り、間違うことがあっても許 +容されることを忘れないでください。 + +あなたの最初のパッチに単に 1ダースもの修正を求めるリストの返答になるこ +とも普通のことです。これはあなたのパッチが受け入れられないということで +は *ありません*、そしてあなた自身に反対することを意味するのでも *ありま +せん*。単に自分のパッチに対して指摘された問題を全て修正して再送すれば +いいのです。 + +カーネルコミュニティと企業組織のちがい +----------------------------------------------------------------- + +カーネルコミュニティは大部分の伝統的な会社の開発環境とは異ったやり方で +動いています。以下は問題を避けるためにできるとよいことののリストです- + + あなたの提案する変更について言うときのうまい言い方： + + - "これは複数の問題を解決します" + - "これは2000行のコードを削除します" + - "以下のパッチは、私が言おうとしていることを説明するものです" + - "私はこれを5つの異なるアーキテクチャでテストしたのですが..." + - "以下は一連の小さなパッチ群ですが..." + - "これは典型的なマシンでの性能を向上させます.." + + やめた方がいい悪い言い方： + + - このやり方で AIX/ptx/Solaris ではできたので、できるはずだ + - 私はこれを20年もの間やってきた、だから + - これは、私の会社が金儲けをするために必要だ + - これは我々のエンタープライズ向け商品ラインのためである + - これは 私が自分のアイディアを記述した、1000ページの設計資料である + - 私はこれについて、6ケ月作業している。 + - 以下は ... に関する5000行のパッチです + - 私は現在のぐちゃぐちゃを全部書き直した、それが以下です... + - 私は〆切がある、そのためこのパッチは今すぐ適用される必要がある + +カーネルコミュニティが大部分の伝統的なソフトウェアエンジニアリングの労 +働環境と異なるもう一つの点は、やりとりに顔を合わせないということです。 +email と irc を第一のコミュニケーションの形とする一つの利点は、性別や +民族の差別がないことです。Linux カーネルの職場環境は女性や少数民族を受 +容します。なぜなら、email アドレスによってのみあなたが認識されるからで +す。 +国際的な側面からも活動領域を均等にするようにします。なぜならば、あなた +は人の名前で性別を想像できないからです。ある男性が アンドレアという名 +前で、女性の名前は パット かもしれません (訳注 Andrea は米国では女性、 +それ以外(欧州など)では男性名として使われることが多い。同様に、Pat は +Patricia (主に女性名)や Patrick (主に男性名)の略称)。 +Linux カーネルの活動をして、意見を表明したことがある大部分の女性は、前 +向きな経験をもっています。 + +言葉の壁は英語が得意でない一部の人には問題になります。 +メーリングリストの中できちんとアイディアを交換するには、相当うまく英語 +を操れる必要があることもあります。そのため、あなたは自分のメール +を送る前に英語で意味が通じているかをチェックすることをお薦めします。 + +変更を分割する +--------------------- + +Linux カーネルコミュニティは、一度に大量のコードの塊を喜んで受容するこ +とはありません。変更は正確に説明される必要があり、議論され、小さい、個 +別の部分に分割する必要があります。これはこれまで多くの会社がやり慣れて +きたことと全く正反対のことです。あなたのプロポーザルは、開発プロセスのと +ても早い段階から紹介されるべきです。そうすれば あなたは自分のやってい +ることにフィードバックを得られます。これは、コミュニティからみれば、あ +なたが彼らと一緒にやっているように感じられ、単にあなたの提案する機能の +ゴミ捨て場として使っているのではない、と感じられるでしょう。 +しかし、一度に 50 もの email をメーリングリストに送りつけるようなことは +やってはいけません、あなたのパッチ群はいつもどんな時でもそれよりは小さ +くなければなりません。 + +パッチを分割する理由は以下です- + +1) 小さいパッチはあなたのパッチが適用される見込みを大きくします、カー + ネルの人達はパッチが正しいかどうかを確認する時間や労力をかけないか + らです。5行のパッチはメンテナがたった1秒見るだけで適用できます。し + かし、500行のパッチは、正しいことをレビューするのに数時間かかるかも + しれません(時間はパッチのサイズなどにより指数関数に比例してかかりま + す) + 小さいパッチは何かあったときにデバッグもとても簡単になります。パッ + チを1個1個取り除くのは、とても大きなパッチを当てた後に(かつ、何かお + かしくなった後で)解剖するのに比べればとても簡単です。 + +2) 小さいパッチを送るだけでなく、送るまえに、書き直して、シンプルにす + る(もしくは、単に順番を変えるだけでも)ことも、とても重要です。 + +以下はカーネル開発者の Al Viro のたとえ話しです： + + "生徒の数学の宿題を採点する先生のことを考えてみてください、先 + 生は生徒が解に到達するまでの試行錯誤をみたいとは思わないでしょ + う。先生は簡潔な最高の解をみたいのです。良い生徒はこれを知って + おり、そして最終解の前の中間作業を提出することは決してないので + す" + カーネル開発でもこれは同じです。メンテナー達とレビューア達は、 + 問題を解決する解の背後になる思考プロセスをみたいとは思いません。 + 彼らは単純であざやかな解決方法をみたいのです。 + +あざやかな解を説明するのと、コミュニティと共に仕事をし、未解決の仕事を +議論することのバランスをキープするのは難しいかもしれません。 +ですから、開発プロセスの早期段階で改善のためのフィードバックをもらうよ +うにするのもいいですが、変更点を小さい部分に分割して全体ではまだ完成し +ていない仕事を(部分的に)取り込んでもらえるようにすることもいいことです。 + +また、でき上がっていないものや、"将来直す" ようなパッチを、本流に含め +てもらうように送っても、それは受け付けられないことを理解してください。 + +あなたの変更を正当化する +------------------- + +あなたのパッチを分割するのと同時に、なぜその変更を追加しなければならな +いかを Linux コミュニティに知らせることはとても重要です。新機能は必要 +性と有用性で正当化されなければなりません。 + +あなたの変更の説明 +-------------------- + +あなたのパッチを送付する場合には、メールの中のテキストで何を言うかにつ +いて、特別に注意を払ってください。この情報はパッチの ChangeLog に使わ +れ、いつも皆がみられるように保管されます。これは次のような項目を含め、 +パッチを完全に記述するべきです- + + - なぜ変更が必要か + - パッチ全体の設計アプローチ + - 実装の詳細 + - テスト結果 + +これについて全てがどのようにあるべきかについての詳細は、以下のドキュメ +ントの ChangeLog セクションをみてください- + "The Perfect Patch" + http://www.zip.com.au/~akpm/linux/patches/stuff/tpp.txt + +これらのどれもが、時にはとても困難です。これらの慣例を完璧に実施するに +は数年かかるかもしれません。これは継続的な改善のプロセスであり、そのた +めには多数の忍耐と決意を必要とするものです。でも、諦めないで、これは可 +能なことです。多数の人がすでにできていますし、彼らも皆最初はあなたと同 +じところからスタートしたのですから。 + +Paolo Ciarrocchi に感謝、彼は彼の書いた "Development Process" +(http://linux.tar.bz/articles/2.6-development_process)セクショ +ンをこのテキストの原型にすることを許可してくれました。 +Rundy Dunlap と Gerrit Huizenga はメーリングリストでやるべきこととやっ +てはいけないことのリストを提供してくれました。 +以下の人々のレビュー、コメント、貢献に感謝。 +Pat Mochel, Hanna Linder, Randy Dunlap, Kay Sievers, +Vojtech Pavlik, Jan Kara, Josh Boyer, Kees Cook, Andrew Morton, Andi +Kleen, Vadim Lobanov, Jesper Juhl, Adrian Bunk, Keri Harris, Frans Pop, +David A. Wheeler, Junio Hamano, Michael Kerrisk, と Alex Shepard +彼らの支援なしでは、このドキュメントはできなかったでしょう。 + +Maintainer: Greg Kroah-Hartman <greg@kroah.com> diff --git a/Documentation/ja_JP/stable_api_nonsense.txt b/Documentation/ja_JP/stable_api_nonsense.txt new file mode 100644 index 00000000000..b3f2b27f088 --- /dev/null +++ b/Documentation/ja_JP/stable_api_nonsense.txt @@ -0,0 +1,263 @@ +NOTE: +This is a Japanese translated version of +"Documentation/stable_api_nonsense.txt". +This one is maintained by +IKEDA, Munehiro <m-ikeda@ds.jp.nec.com> +and JF Project team <http://www.linux.or.jp/JF/>. +If you find difference with original file or problem in translation, +please contact the maintainer of this file or JF project. + +Please also note that purpose of this file is easier to read for non +English natives and not to be intended to fork. So, if you have any +comments or updates of this file, please try to update +Original(English) file at first. + +================================== +これは、 +linux-2.6.22-rc4/Documentation/stable_api_nonsense.txt の和訳 +です。 +翻訳団体： JF プロジェクト < http://www.linux.or.jp/JF/ > +翻訳日 ： 2007/06/11 +原著作者: Greg Kroah-Hartman < greg at kroah dot com > +翻訳者 ： 池田 宗広 < m-ikeda at ds dot jp dot nec dot com > +校正者 ： Masanori Kobayashi さん < zap03216 at nifty dot ne dot jp > + Seiji Kaneko さん < skaneko at a2 dot mbn dot or dot jp > +================================== + + + +Linux カーネルのドライバインターフェース +（あなたの質問すべてに対する回答とその他諸々） + +Greg Kroah-Hartman <greg at kroah dot com> + + +この文書は、なぜ Linux ではバイナリカーネルインターフェースが定義 +されていないのか、またはなぜ不変のカーネルインターフェースを持たな +いのか、ということを説明するために書かれた。ここでの話題は「カーネ +ル内部の」インターフェースについてであり、ユーザー空間とのインター +フェースではないことを理解してほしい。カーネルとユーザー空間とのイ +ンターフェースとはアプリケーションプログラムが使用するものであり、 +つまりシステムコールのインターフェースがこれに当たる。これは今まで +長きに渡り、かつ今後も「まさしく」不変である。私は確か 0.9 か何か +より前のカーネルを使ってビルドした古いプログラムを持っているが、そ +れは最新の 2.6 カーネルでもきちんと動作する。ユーザー空間とのイン +ターフェースは、ユーザーとアプリケーションプログラマが不変性を信頼 +してよいものの一つである。 + + +要旨 +---- + +あなたは不変のカーネルインターフェースが必要だと考えているかもしれ +ないが、実際のところはそうではない。あなたは必要としているものが分 +かっていない。あなたが必要としているものは安定して動作するドライバ +であり、それはドライバがメインのカーネルツリーに含まれる場合のみ得 +ることができる。ドライバがメインのカーネルツリーに含まれていると、 +他にも多くの良いことがある。それは、Linux をより強固で、安定な、成 +熟したオペレーティングシステムにすることができるということだ。これ +こそ、そもそもあなたが Linux を使う理由のはずだ。 + + +はじめに +-------- + +カーネル内部のインターフェース変更を心配しなければならないドライバ +を書きたいなどというのは、変わり者だけだ。この世界のほとんどの人は、 +そのようなドライバがどんなインターフェースを使っているかなど知らな +いし、そんなドライバのことなど全く気にもかけていない。 + + +まず初めに、クローズソースとか、ソースコードの隠蔽とか、バイナリの +みが配布される使い物にならない代物[訳注(1)]とか、実体はバイナリ +コードでそれを読み込むためのラッパー部分のみソースコードが公開され +ているとか、その他用語は何であれ GPL の下にソースコードがリリース +されていないカーネルドライバに関する法的な問題について、私は「いか +なる議論も」行うつもりがない。法的な疑問があるのならば、プログラマ +である私ではなく、弁護士に相談して欲しい。ここでは単に、技術的な問 +題について述べることにする。（法的な問題を軽視しているわけではない。 +それらは実際に存在するし、あなたはそれをいつも気にかけておく必要が +ある） + +訳注(1) +「使い物にならない代物」の原文は "blob" + + +さてここでは、バイナリカーネルインターフェースについてと、ソースレ +ベルでのインターフェースの不変性について、という二つの話題を取り上 +げる。この二つは互いに依存する関係にあるが、まずはバイナリインター +フェースについて議論を行いやっつけてしまおう。 + + +バイナリカーネルインターフェース +-------------------------------- + +もしソースレベルでのインターフェースが不変ならば、バイナリインター +フェースも当然のように不変である、というのは正しいだろうか？正しく +ない。Linux カーネルに関する以下の事実を考えてみてほしい。 + - あなたが使用するＣコンパイラのバージョンによって、カーネル内部 + の構造体の配置構造は異なったものになる。また、関数は異なった方 + 法でカーネルに含まれることになるかもしれない（例えばインライン + 関数として扱われたり、扱われなかったりする）。個々の関数がどの + ようにコンパイルされるかはそれほど重要ではないが、構造体のパデ + ィングが異なるというのは非常に重要である。 + - あなたがカーネルのビルドオプションをどのように設定するかによっ + て、カーネルには広い範囲で異なった事態が起こり得る。 + - データ構造は異なるデータフィールドを持つかもしれない + - いくつかの関数は全く実装されていない状態になり得る + （例：SMP向けではないビルドでは、いくつかのロックは中身が + カラにコンパイルされる） + - カーネル内のメモリは、異なった方法で配置され得る。これはビ + ルドオプションに依存している。 + - Linux は様々な異なるプロセッサアーキテクチャ上で動作する。 + あるアーキテクチャ用のバイナリドライバを、他のアーキテクチャで + 正常に動作させる方法はない。 + + +ある特定のカーネル設定を使用し、カーネルをビルドしたのと正確に同じ +Ｃコンパイラを使用して単にカーネルモジュールをコンパイルするだけで +も、あなたはこれらいくつもの問題に直面することになる。ある特定の +Linux ディストリビューションの、ある特定のリリースバージョン用にモ +ジュールを提供しようと思っただけでも、これらの問題を引き起こすには +十分である。にも関わらず Linux ディストリビューションの数と、サ +ポートするディストリビューションのリリース数を掛け算し、それら一つ +一つについてビルドを行ったとしたら、今度はリリースごとのビルドオプ +ションの違いという悪夢にすぐさま悩まされることになる。また、ディス +トリビューションの各リリースバージョンには、異なるハードウェア（プ +ロセッサタイプや種々のオプション）に対応するため、何種類かのカーネ +ルが含まれているということも理解して欲しい。従って、ある一つのリ +リースバージョンだけのためにモジュールを作成する場合でも、あなたは +何バージョンものモジュールを用意しなければならない。 + + +信じて欲しい。このような方法でサポートを続けようとするなら、あなた +はいずれ正気を失うだろう。遠い昔、私はそれがいかに困難なことか、身 +をもって学んだのだ・・・ + + +不変のカーネルソースレベルインターフェース +------------------------------------------ + +メインカーネルツリーに含まれていない Linux カーネルドライバを継続 +してサポートしていこうとしている人たちとの議論においては、これは極 +めて「引火性の高い」話題である。[訳注(2)] + +訳注(2) +「引火性の高い」の原文は "volatile"。 +volatile には「揮発性の」「爆発しやすい」という意味の他、「変わり +やすい」「移り気な」という意味がある。 +「（この話題は）爆発的に激しい論争を巻き起こしかねない」ということ +を、「（カーネルのソースレベルインターフェースは）移ろい行くもので +ある」ということを連想させる "volatile" という単語で表現している。 + + +Linux カーネルの開発は継続的に速いペースで行われ、決して歩みを緩め +ることがない。その中でカーネル開発者達は、現状のインターフェースに +あるバグを見つけ、より良い方法を考え出す。彼らはやがて、現状のイン +ターフェースがより正しく動作するように修正を行う。その過程で関数の +名前は変更されるかもしれず、構造体は大きく、または小さくなるかもし +れず、関数の引数は検討しなおされるかもしれない。そのような場合、引 +き続き全てが正常に動作するよう、カーネル内でこれらのインターフェー +スを使用している個所も全て同時に修正される。 + + +具体的な例として、カーネル内の USB インターフェースを挙げる。USB +サブシステムはこれまでに少なくとも３回の書き直しが行われ、その結果 +インターフェースが変更された。これらの書き直しはいくつかの異なった +問題を修正するために行われた。 + - 同期的データストリームが非同期に変更された。これにより多数のド + ライバを単純化でき、全てのドライバのスループットが向上した。今 + やほとんど全ての USB デバイスは、考えられる最高の速度で動作し + ている。 + - USB ドライバが USB サブシステムのコアから行う、データパケット + 用のメモリ確保方法が変更された。これに伴い、いくつもの文書化さ + れたデッドロック条件を回避するため、全ての USB ドライバはより + 多くの情報を USB コアに提供しなければならないようになっている。 + + +このできごとは、数多く存在するクローズソースのオペレーティングシス +テムとは全く対照的だ。それらは長期に渡り古い USB インターフェース +をメンテナンスしなければならない。古いインターフェースが残ることで、 +新たな開発者が偶然古いインターフェースを使い、正しくない方法で開発 +を行ってしまう可能性が生じる。これによりシステムの安定性は危険にさ +らされることになる。 + + +上に挙げたどちらの例においても、開発者達はその変更が重要かつ必要で +あることに合意し、比較的楽にそれを実行した。もし Linux がソースレ +ベルでインターフェースの不変性を保証しなければならないとしたら、新 +しいインターフェースを作ると同時に、古い、問題のある方を今後ともメ +ンテナンスするという余計な仕事を USB の開発者にさせなければならな +い。Linux の USB 開発者は、自分の時間を使って仕事をしている。よっ +て、価値のない余計な仕事を報酬もなしに実行しろと言うことはできない。 + + +セキュリティ問題も、Linux にとっては非常に重要である。ひとたびセキ +ュリティに関する問題が発見されれば、それは極めて短期間のうちに修正 +される。セキュリティ問題の発生を防ぐための修正は、カーネルの内部イ +ンターフェースの変更を何度も引き起こしてきた。その際同時に、変更さ +れたインターフェースを使用する全てのドライバもまた変更された。これ +により問題が解消し、将来偶然に問題が再発してしまわないことが保証さ +れる。もし内部インターフェースの変更が許されないとしたら、このよう +にセキュリティ問題を修正し、将来再発しないことを保証することなど不 +可能なのだ。 + + +カーネルのインターフェースは時が経つにつれクリーンナップを受ける。 +誰も使っていないインターフェースは削除される。これにより、可能な限 +りカーネルが小さく保たれ、現役の全てのインターフェースが可能な限り +テストされることを保証しているのだ。（使われていないインターフェー +スの妥当性をテストすることは不可能と言っていいだろう） + + + +これから何をすべきか +----------------------- + +では、もしメインのカーネルツリーに含まれない Linux カーネルドライ +バがあったとして、あなたは、つまり開発者は何をするべきだろうか？全 +てのディストリビューションの全てのカーネルバージョン向けにバイナリ +のドライバを供給することは悪夢であり、カーネルインターフェースの変 +更を追いかけ続けることもまた過酷な仕事だ。 + + +答えは簡単。そのドライバをメインのカーネルツリーに入れてしまえばよ +い。（ここで言及しているのは、GPL に従って公開されるドライバのこと +だということに注意してほしい。あなたのコードがそれに該当しないなら +ば、さよなら。幸運を祈ります。ご自分で何とかしてください。Andrew +と Linus からのコメント＜Andrew と Linus のコメントへのリンクをこ +こに置く＞をどうぞ）ドライバがメインツリーに入れば、カーネルのイン +ターフェースが変更された場合、変更を行った開発者によってドライバも +修正されることになるだろう。あなたはほとんど労力を払うことなしに、 +常にビルド可能できちんと動作するドライバを手に入れることができる。 + + +ドライバをメインのカーネルツリーに入れると、非常に好ましい以下の効 +果がある。 + - ドライバの品質が向上する一方で、（元の開発者にとっての）メンテ + ナンスコストは下がる。 + - あなたのドライバに他の開発者が機能を追加してくれる。 + - 誰かがあなたのドライバにあるバグを見つけ、修正してくれる。 + - 誰かがあなたのドライバにある改善点を見つけてくれる。 + - 外部インターフェースが変更されドライバの更新が必要になった場合、 + 誰かがあなたの代わりに更新してくれる。 + - ドライバを入れてくれとディストロに頼まなくても、そのドライバは + 全ての Linux ディストリビューションに自動的に含まれてリリース + される。 + + +Linux では、他のどのオペレーティングシステムよりも数多くのデバイス +が「そのまま」使用できるようになった。また Linux は、どのオペレー +ティングシステムよりも数多くのプロセッサアーキテクチャ上でそれらの +デバイスを使用することができるようにもなった。このように、Linux の +開発モデルは実証されており、今後も間違いなく正しい方向へと進んでい +くだろう。:) + + + +------ + +この文書の初期の草稿に対し、Randy Dunlap, Andrew Morton, David +Brownell, Hanna Linder, Robert Love, Nishanth Aravamudan から査読 +と助言を頂きました。感謝申し上げます。 + diff --git a/Documentation/zh_CN/HOWTO b/Documentation/zh_CN/HOWTO new file mode 100644 index 00000000000..48fc67bfbe3 --- /dev/null +++ b/Documentation/zh_CN/HOWTO @@ -0,0 +1,536 @@ +Chinese translated version of Documentation/HOWTO + +If you have any comment or update to the content, please contact the +original document maintainer directly. However, if you have problem +communicating in English you can also ask the Chinese maintainer for +help. Contact the Chinese maintainer, if this translation is outdated +or there is problem with translation. + +Maintainer: Greg Kroah-Hartman <greg@kroah.com> +Chinese maintainer: Li Yang <leoli@freescale.com> +--------------------------------------------------------------------- +Documentation/HOWTO 的中文翻译 + +如果想评论或更新本文的内容，请直接联系原文档的维护者。如果你使用英文 +交流有困难的话，也可以向中文版维护者求助。如果本翻译更新不及时或者翻 +译存在问题，请联系中文版维护者。 + +英文版维护者： Greg Kroah-Hartman <greg@kroah.com> +中文版维护者： 李阳 Li Yang <leoli@freescale.com> +中文版翻译者： 李阳 Li Yang <leoli@freescale.com> +中文版校译者： 钟宇 TripleX Chung <xxx.phy@gmail.com> + 陈琦 Maggie Chen <chenqi@beyondsoft.com> + 王聪 Wang Cong <xiyou.wangcong@gmail.com> + +以下为正文 +--------------------------------------------------------------------- + +如何参与Linux内核开发 +--------------------- + +这是一篇将如何参与Linux内核开发的相关问题一网打尽的终极秘笈。它将指导你 +成为一名Linux内核开发者，并且学会如何同Linux内核开发社区合作。它尽可能不 +包括任何关于内核编程的技术细节，但会给你指引一条获得这些知识的正确途径。 + +如果这篇文章中的任何内容不再适用，请给文末列出的文件维护者发送补丁。 + + +入门 +---- + +你想了解如何成为一名Linux内核开发者？或者老板吩咐你“给这个设备写个Linux +驱动程序”？这篇文章的目的就是教会你达成这些目标的全部诀窍，它将描述你需 +要经过的流程以及给出如何同内核社区合作的一些提示。它还将试图解释内核社区 +为何这样运作。 + +Linux内核大部分是由C语言写成的，一些体系结构相关的代码用到了汇编语言。要 +参与内核开发，你必须精通C语言。除非你想为某个架构开发底层代码，否则你并 +不需要了解（任何体系结构的）汇编语言。下面列举的书籍虽然不能替代扎实的C +语言教育和多年的开发经验，但如果需要的话，做为参考还是不错的： + - "The C Programming Language" by Kernighan and Ritchie [Prentice Hall] + 《C程序设计语言（第2版·新版）》（徐宝文 李志 译）[机械工业出版社] + - "Practical C Programming" by Steve Oualline [O'Reilly] + 《实用C语言编程（第三版）》（郭大海 译）[中国电力出版社] + - "C: A Reference Manual" by Harbison and Steele [Prentice Hall] + 《C语言参考手册（原书第5版）》（邱仲潘 等译）[机械工业出版社] + +Linux内核使用GNU C和GNU工具链开发。虽然它遵循ISO C89标准，但也用到了一些 +标准中没有定义的扩展。内核是自给自足的C环境，不依赖于标准C库的支持，所以 +并不支持C标准中的部分定义。比如long long类型的大数除法和浮点运算就不允许 +使用。有时候确实很难弄清楚内核对工具链的要求和它所使用的扩展，不幸的是目 +前还没有明确的参考资料可以解释它们。请查阅gcc信息页（使用“info gcc”命令 +显示）获得一些这方面信息。 + +请记住你是在学习怎么和已经存在的开发社区打交道。它由一群形形色色的人组成， +他们对代码、风格和过程有着很高的标准。这些标准是在长期实践中总结出来的， +适应于地理上分散的大型开发团队。它们已经被很好得整理成档，建议你在开发 +之前尽可能多的学习这些标准，而不要期望别人来适应你或者你公司的行为方式。 + + +法律问题 +-------- + +Linux内核源代码都是在GPL（通用公共许可证）的保护下发布的。要了解这种许可 +的细节请查看源代码主目录下的COPYING文件。如果你对它还有更深入问题请联系 +律师，而不要在Linux内核邮件组上提问。因为邮件组里的人并不是律师，不要期 +望他们的话有法律效力。 + +对于GPL的常见问题和解答，请访问以下链接： + http://www.gnu.org/licenses/gpl-faq.html + + +文档 +---- + +Linux内核代码中包含有大量的文档。这些文档对于学习如何与内核社区互动有着 +不可估量的价值。当一个新的功能被加入内核，最好把解释如何使用这个功能的文 +档也放进内核。当内核的改动导致面向用户空间的接口发生变化时，最好将相关信 +息或手册页(manpages)的补丁发到mtk-manpages@gmx.net，以向手册页(manpages) +的维护者解释这些变化。 + +以下是内核代码中需要阅读的文档： + README + 文件简要介绍了Linux内核的背景，并且描述了如何配置和编译内核。内核的 + 新用户应该从这里开始。 + + Documentation/Changes + 文件给出了用来编译和使用内核所需要的最小软件包列表。 + + Documentation/CodingStyle + 描述Linux内核的代码风格和理由。所有新代码需要遵守这篇文档中定义的规 + 范。大多数维护者只会接收符合规定的补丁，很多人也只会帮忙检查符合风格 + 的代码。 + + Documentation/SubmittingPatches + Documentation/SubmittingDrivers + 这两份文档明确描述如何创建和发送补丁，其中包括（但不仅限于)： + - 邮件内容 + - 邮件格式 + - 选择收件人 + 遵守这些规定并不能保证提交成功（因为所有补丁需要通过严格的内容和风格 + 审查），但是忽视他们几乎就意味着失败。 + + 其他关于如何正确地生成补丁的优秀文档包括： + "The Perfect Patch" + http://www.zip.com.au/~akpm/linux/patches/stuff/tpp.txt + "Linux kernel patch submission format" + http://linux.yyz.us/patch-format.html + + Documentation/stable_api_nonsense.txt + 论证内核为什么特意不包括稳定的内核内部API，也就是说不包括像这样的特 + 性： + - 子系统中间层（为了兼容性？） + - 在不同操作系统间易于移植的驱动程序 + - 减缓（甚至阻止）内核代码的快速变化 + 这篇文档对于理解Linux的开发哲学至关重要。对于将开发平台从其他操作系 + 统转移到Linux的人来说也很重要。 + + Documentation/SecurityBugs + 如果你认为自己发现了Linux内核的安全性问题，请根据这篇文档中的步骤来 + 提醒其他内核开发者并帮助解决这个问题。 + + Documentation/ManagementStyle + 描述内核维护者的工作方法及其共有特点。这对于刚刚接触内核开发（或者对 + 它感到好奇）的人来说很重要，因为它解释了很多对于内核维护者独特行为的 + 普遍误解与迷惑。 + + Documentation/stable_kernel_rules.txt + 解释了稳定版内核发布的规则，以及如何将改动放入这些版本的步骤。 + + Documentation/kernel-docs.txt + 有助于内核开发的外部文档列表。如果你在内核自带的文档中没有找到你想找 + 的内容，可以查看这些文档。 + + Documentation/applying-patches.txt + 关于补丁是什么以及如何将它打在不同内核开发分支上的好介绍 + +内核还拥有大量从代码自动生成的文档。它包含内核内部API的全面介绍以及如何 +妥善处理加锁的规则。生成的文档会放在 Documentation/DocBook/目录下。在内 +核源码的主目录中使用以下不同命令将会分别生成PDF、Postscript、HTML和手册 +页等不同格式的文档： + make pdfdocs + make psdocs + make htmldocs + make mandocs + + +如何成为内核开发者 +------------------ +如果你对Linux内核开发一无所知，你应该访问“Linux内核新手”计划： + http://kernelnewbies.org +它拥有一个可以问各种最基本的内核开发问题的邮件列表（在提问之前一定要记得 +查找已往的邮件，确认是否有人已经回答过相同的问题）。它还拥有一个可以获得 +实时反馈的IRC聊天频道，以及大量对于学习Linux内核开发相当有帮助的文档。 + +网站简要介绍了源代码组织结构、子系统划分以及目前正在进行的项目（包括内核 +中的和单独维护的）。它还提供了一些基本的帮助信息，比如如何编译内核和打补 +丁。 + +如果你想加入内核开发社区并协助完成一些任务，却找不到从哪里开始，可以访问 +“Linux内核房管员”计划： + http://janitor.kernelnewbies.org/ +这是极佳的起点。它提供一个相对简单的任务列表，列出内核代码中需要被重新 +整理或者改正的地方。通过和负责这个计划的开发者们一同工作，你会学到将补丁 +集成进内核的基本原理。如果还没有决定下一步要做什么的话，你还可能会得到方 +向性的指点。 + +如果你已经有一些现成的代码想要放到内核中，但是需要一些帮助来使它们拥有正 +确的格式。请访问“内核导师”计划。这个计划就是用来帮助你完成这个目标的。它 +是一个邮件列表，地址如下： + http://selenic.com/mailman/listinfo/kernel-mentors + +在真正动手修改内核代码之前，理解要修改的代码如何运作是必需的。要达到这个 +目的，没什么办法比直接读代码更有效了（大多数花招都会有相应的注释），而且 +一些特制的工具还可以提供帮助。例如，“Linux代码交叉引用”项目就是一个值得 +特别推荐的帮助工具，它将源代码显示在有编目和索引的网页上。其中一个更新及 +时的内核源码库，可以通过以下地址访问： + http://sosdg.org/~coywolf/lxr/ + + +开发流程 +-------- + +目前Linux内核开发流程包括几个“主内核分支”和很多子系统相关的内核分支。这 +些分支包括： + - 2.6.x主内核源码树 + - 2.6.x.y -stable内核源码树 + - 2.6.x -git内核补丁集 + - 2.6.x -mm内核补丁集 + - 子系统相关的内核源码树和补丁集 + + +2.6.x内核主源码树 +----------------- +2.6.x内核是由Linus Torvalds（Linux的创造者）亲自维护的。你可以在 +kernel.org网站的pub/linux/kernel/v2.6/目录下找到它。它的开发遵循以下步 +骤： + - 每当一个新版本的内核被发布，为期两周的集成窗口将被打开。在这段时间里 + 维护者可以向Linus提交大段的修改，通常这些修改已经被放到-mm内核中几个 + 星期了。提交大量修改的首选方式是使用git工具（内核的代码版本管理工具 + ，更多的信息可以在http://git.or.cz/获取），不过使用普通补丁也是可以 + 的。 + - 两个星期以后-rc1版本内核发布。之后只有不包含可能影响整个内核稳定性的 + 新功能的补丁才可能被接受。请注意一个全新的驱动程序（或者文件系统）有 + 可能在-rc1后被接受是因为这样的修改完全独立，不会影响其他的代码，所以 + 没有造成内核退步的风险。在-rc1以后也可以用git向Linus提交补丁，不过所 + 有的补丁需要同时被发送到相应的公众邮件列表以征询意见。 + - 当Linus认为当前的git源码树已经达到一个合理健全的状态足以发布供人测试 + 时，一个新的-rc版本就会被发布。计划是每周都发布新的-rc版本。 + - 这个过程一直持续下去直到内核被认为达到足够稳定的状态，持续时间大概是 + 6个星期。 + +关于内核发布，值得一提的是Andrew Morton在linux-kernel邮件列表中如是说： + “没有人知道新内核何时会被发布，因为发布是根据已知bug的情况来决定 + 的，而不是根据一个事先制定好的时间表。” + + +2.6.x.y -stable（稳定版）内核源码树 +----------------------------------- +由4个数字组成的内核版本号说明此内核是-stable版本。它们包含基于2.6.x版本 +内核的相对较小且至关重要的修补，这些修补针对安全性问题或者严重的内核退步。 + +这种版本的内核适用于那些期望获得最新的稳定版内核并且不想参与测试开发版或 +者实验版的用户。 + +如果没有2.6.x.y版本内核存在，那么最新的2.6.x版本内核就相当于是当前的稳定 +版内核。 + +2.6.x.y版本由“稳定版”小组（邮件地址<stable@kernel.org>）维护，一般隔周发 +布新版本。 + +内核源码中的Documentation/stable_kernel_rules.txt文件具体描述了可被稳定 +版内核接受的修改类型以及发布的流程。 + + +2.6.x -git补丁集 +---------------- +Linus的内核源码树的每日快照，这个源码树是由git工具管理的（由此得名）。这 +些补丁通常每天更新以反映Linus的源码树的最新状态。它们比-rc版本的内核源码 +树更具试验性质，因为这个补丁集是全自动生成的，没有任何人来确认其是否真正 +健全。 + + +2.6.x -mm补丁集 +--------------- +这是由Andrew Morton维护的试验性内核补丁集。Andrew将所有子系统的内核源码 +和补丁拼凑到一起，并且加入了大量从linux-kernel邮件列表中采集的补丁。这个 +源码树是新功能和补丁的试炼场。当补丁在-mm补丁集里证明了其价值以后Andrew +或者相应子系统的维护者会将补丁发给Linus以便集成进主内核源码树。 + +在将所有新补丁发给Linus以集成到主内核源码树之前，我们非常鼓励先把这些补 +丁放在-mm版内核源码树中进行测试。 + +这些内核版本不适合在需要稳定运行的系统上运行，因为运行它们比运行任何其他 +内核分支都更具有风险。 + +如果你想为内核开发进程提供帮助，请尝试并使用这些内核版本，并在 +linux-kernel邮件列表中提供反馈，告诉大家你遇到了问题还是一切正常。 + +通常-mm版补丁集不光包括这些额外的试验性补丁，还包括发布时-git版主源码树 +中的改动。 + +-mm版内核没有固定的发布周期，但是通常在每两个-rc版内核发布之间都会有若干 +个-mm版内核发布（一般是1至3个）。 + + +子系统相关内核源码树和补丁集 +---------------------------- +相当一部分内核子系统开发者会公开他们自己的开发源码树，以便其他人能了解内 +核的不同领域正在发生的事情。如上所述，这些源码树会被集成到-mm版本内核中。 + +下面是目前可用的一些内核源码树的列表： + 通过git管理的源码树： + - Kbuild开发源码树， Sam Ravnborg <sam@ravnborg.org> + git.kernel.org:/pub/scm/linux/kernel/git/sam/kbuild.git + + - ACPI开发源码树, Len Brown <len.brown@intel.com> + git.kernel.org:/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git + + - 块设备开发源码树, Jens Axboe <axboe@suse.de> + git.kernel.org:/pub/scm/linux/kernel/git/axboe/linux-2.6-block.git + + - DRM开发源码树, Dave Airlie <airlied@linux.ie> + git.kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6.git + + - ia64开发源码树, Tony Luck <tony.luck@intel.com> + git.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6.git + + - ieee1394开发源码树, Jody McIntyre <scjody@modernduck.com> + git.kernel.org:/pub/scm/linux/kernel/git/scjody/ieee1394.git + + - infiniband开发源码树, Roland Dreier <rolandd@cisco.com> + git.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband.git + + - libata开发源码树, Jeff Garzik <jgarzik@pobox.com> + git.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev.git + + - 网络驱动程序开发源码树, Jeff Garzik <jgarzik@pobox.com> + git.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6.git + + - pcmcia开发源码树, Dominik Brodowski <linux@dominikbrodowski.net> + git.kernel.org:/pub/scm/linux/kernel/git/brodo/pcmcia-2.6.git + + - SCSI开发源码树, James Bottomley <James.Bottomley@SteelEye.com> + git.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6.git + + 使用quilt管理的补丁集： + - USB, PCI, 驱动程序核心和I2C, Greg Kroah-Hartman <gregkh@suse.de> + kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/ + - x86-64, 部分i386, Andi Kleen <ak@suse.de> + ftp.firstfloor.org:/pub/ak/x86_64/quilt/ + + 其他内核源码树可以在http://git.kernel.org的列表中和MAINTAINERS文件里 + 找到。 + +报告bug +------- + +bugzilla.kernel.org是Linux内核开发者们用来跟踪内核Bug的网站。我们鼓励用 +户在这个工具中报告找到的所有bug。如何使用内核bugzilla的细节请访问： + http://test.kernel.org/bugzilla/faq.html + +内核源码主目录中的REPORTING-BUGS文件里有一个很好的模板。它指导用户如何报 +告可能的内核bug以及需要提供哪些信息来帮助内核开发者们找到问题的根源。 + + +利用bug报告 +----------- + +练习内核开发技能的最好办法就是修改其他人报告的bug。你不光可以帮助内核变 +得更加稳定，还可以学会如何解决实际问题从而提高自己的技能，并且让其他开发 +者感受到你的存在。修改bug是赢得其他开发者赞誉的最好办法，因为并不是很多 +人都喜欢浪费时间去修改别人报告的bug。 + +要尝试修改已知的bug，请访问http://bugzilla.kernel.org网址。如果你想获得 +最新bug的通知，可以订阅bugme-new邮件列表（只有新的bug报告会被寄到这里） +或者订阅bugme-janitor邮件列表（所有bugzilla的变动都会被寄到这里）。 + + http://lists.osdl.org/mailman/listinfo/bugme-new + http://lists.osdl.org/mailman/listinfo/bugme-janitors + + +邮件列表 +-------- + +正如上面的文档所描述，大多数的骨干内核开发者都加入了Linux Kernel邮件列 +表。如何订阅和退订列表的细节可以在这里找到： + http://vger.kernel.org/vger-lists.html#linux-kernel +网上很多地方都有这个邮件列表的存档(archive)。可以使用搜索引擎来找到这些 +存档。比如： + http://dir.gmane.org/gmane.linux.kernel +在发信之前，我们强烈建议你先在存档中搜索你想要讨论的问题。很多已经被详细 +讨论过的问题只在邮件列表的存档中可以找到。 + +大多数内核子系统也有自己独立的邮件列表来协调各自的开发工作。从 +MAINTAINERS文件中可以找到不同话题对应的邮件列表。 + +很多邮件列表架设在kernel.org服务器上。这些列表的信息可以在这里找到： + http://vger.kernel.org/vger-lists.html + +在使用这些邮件列表时，请记住保持良好的行为习惯。下面的链接提供了与这些列 +表（或任何其它邮件列表）交流的一些简单规则，虽然内容有点滥竽充数。 + http://www.albion.com/netiquette/ + +当有很多人回复你的邮件时，邮件的抄送列表会变得很长。请不要将任何人从抄送 +列表中删除，除非你有足够的理由这么做。也不要只回复到邮件列表。请习惯于同 +一封邮件接收两次（一封来自发送者一封来自邮件列表），而不要试图通过添加一 +些奇特的邮件头来解决这个问题，人们不会喜欢的。 + +记住保留你所回复内容的上下文和源头。在你回复邮件的顶部保留“某某某说到……” +这几行。将你的评论加在被引用的段落之间而不要放在邮件的顶部。 + +如果你在邮件中附带补丁，请确认它们是可以直接阅读的纯文本（如 +Documentation/SubmittingPatches文档中所述）。内核开发者们不希望遇到附件 +或者被压缩了的补丁。只有这样才能保证他们可以直接评论你的每行代码。请确保 +你使用的邮件发送程序不会修改空格和制表符。一个防范性的测试方法是先将邮件 +发送给自己，然后自己尝试是否可以顺利地打上收到的补丁。如果测试不成功，请 +调整或者更换你的邮件发送程序直到它正确工作为止。 + +总而言之，请尊重其他的邮件列表订阅者。 + + +同内核社区合作 +---------------- + +内核社区的目标就是提供尽善尽美的内核。所以当你提交补丁期望被接受进内核的 +时候，它的技术价值以及其他方面都将被评审。那么你可能会得到什么呢？ + - 批评 + - 评论 + - 要求修改 + - 要求证明修改的必要性 + - 沉默 + +要记住，这些是把补丁放进内核的正常情况。你必须学会听取对补丁的批评和评论， +从技术层面评估它们，然后要么重写你的补丁要么简明扼要地论证修改是不必要 +的。如果你发的邮件没有得到任何回应，请过几天后再试一次，因为有时信件会湮 +没在茫茫信海中。 + +你不应该做的事情： + - 期望自己的补丁不受任何质疑就直接被接受 + - 翻脸 + - 忽略别人的评论 + - 没有按照别人的要求做任何修改就重新提交 + +在一个努力追寻最好技术方案的社区里，对于一个补丁有多少好处总会有不同的见 +解。你必须要抱着合作的态度，愿意改变自己的观点来适应内核的风格。或者至少 +愿意去证明你的想法是有价值的。记住，犯错误是允许的，只要你愿意朝着正确的 +方案去努力。 + +如果你的第一个补丁换来的是一堆修改建议，这是很正常的。这并不代表你的补丁 +不会被接受，也不意味着有人和你作对。你只需要改正所有提出的问题然后重新发 +送你的补丁。 + +内核社区和公司文化的差异 +------------------------ + +内核社区的工作模式同大多数传统公司开发队伍的工作模式并不相同。下面这些例 +子，可以帮助你避免某些可能发生问题： + 用这些话介绍你的修改提案会有好处： + - 它同时解决了多个问题 + - 它删除了2000行代码 + - 这是补丁，它已经解释了我想要说明的 + - 我在5种不同的体系结构上测试过它…… + - 这是一系列小补丁用来…… + - 这个修改提高了普通机器的性能…… + + 应该避免如下的说法： + - 我们在AIX/ptx/Solaris就是这么做的，所以这么做肯定是好的…… + - 我做这行已经20年了，所以…… + - 为了我们公司赚钱考虑必须这么做 + - 这是我们的企业产品线所需要的 + - 这里是描述我观点的1000页设计文档 + - 这是一个5000行的补丁用来…… + - 我重写了现在乱七八糟的代码，这就是…… + - 我被规定了最后期限，所以这个补丁需要立刻被接受 + +另外一个内核社区与大部分传统公司的软件开发队伍不同的地方是无法面对面地交 +流。使用电子邮件和IRC聊天工具做为主要沟通工具的一个好处是性别和种族歧视 +将会更少。Linux内核的工作环境更能接受妇女和少数族群，因为每个人在别人眼 +里只是一个邮件地址。国际化也帮助了公平的实现，因为你无法通过姓名来判断人 +的性别。男人有可能叫李丽，女人也有可能叫王刚。大多数在Linux内核上工作过 +并表达过看法的女性对在linux上工作的经历都给出了正面的评价。 + +对于一些不习惯使用英语的人来说，语言可能是一个引起问题的障碍。在邮件列表 +中要正确地表达想法必需良好地掌握语言，所以建议你在发送邮件之前最好检查一 +下英文写得是否正确。 + + +拆分修改 +-------- + +Linux内核社区并不喜欢一下接收大段的代码。修改需要被恰当地介绍、讨论并且 +拆分成独立的小段。这几乎完全和公司中的习惯背道而驰。你的想法应该在开发最 +开始的阶段就让大家知道，这样你就可以及时获得对你正在进行的开发的反馈。这 +样也会让社区觉得你是在和他们协作，而不是仅仅把他们当作倾销新功能的对象。 +无论如何，你不要一次性地向邮件列表发送50封信，你的补丁序列应该永远用不到 +这么多。 + +将补丁拆开的原因如下： + +1) 小的补丁更有可能被接受，因为它们不需要太多的时间和精力去验证其正确性。 + 一个5行的补丁，可能在维护者看了一眼以后就会被接受。而500行的补丁则 + 需要数个小时来审查其正确性（所需时间随补丁大小增加大约呈指数级增长）。 + + 当出了问题的时候，小的补丁也会让调试变得非常容易。一个一个补丁地回溯 + 将会比仔细剖析一个被打上的大补丁（这个补丁破坏了其他东西）容易得多。 + +2）不光发送小的补丁很重要，在提交之前重新编排、化简（或者仅仅重新排列） + 补丁也是很重要的。 + +这里有内核开发者Al Viro打的一个比方： + “想象一个老师正在给学生批改数学作业。老师并不希望看到学生为了得 + 到正确解法所进行的尝试和产生的错误。他希望看到的是最干净最优雅的 + 解答。好学生了解这点，绝不会把最终解决之前的中间方案提交上去。” + + 内核开发也是这样。维护者和评审者不希望看到一个人在解决问题时的思 + 考过程。他们只希望看到简单和优雅的解决方案。 + +直接给出一流的解决方案，和社区一起协作讨论尚未完成的工作，这两者之间似乎 +很难找到一个平衡点。所以最好尽早开始收集有利于你进行改进的反馈；同时也要 +保证修改分成很多小块，这样在整个项目都准备好被包含进内核之前，其中的一部 +分可能会先被接收。 + +必须了解这样做是不可接受的：试图将未完成的工作提交进内核，然后再找时间修 +复。 + + +证明修改的必要性 +---------------- +除了将补丁拆成小块，很重要的一点是让Linux社区了解他们为什么需要这样修改。 +你必须证明新功能是有人需要的并且是有用的。 + + +记录修改 +-------- + +当你发送补丁的时候，需要特别留意邮件正文的内容。因为这里的信息将会做为补 +丁的修改记录(ChangeLog)，会被一直保留以备大家查阅。它需要完全地描述补丁， +包括： + - 为什么需要这个修改 + - 补丁的总体设计 + - 实现细节 + - 测试结果 + +想了解它具体应该看起来像什么，请查阅以下文档中的“ChangeLog”章节： + “The Perfect Patch” + http://www.zip.com.au/~akpm/linux/patches/stuff/tpp.txt + + +这些事情有时候做起来很难。要在任何方面都做到完美可能需要好几年时间。这是 +一个持续提高的过程，它需要大量的耐心和决心。只要不放弃，你一定可以做到。 +很多人已经做到了，而他们都曾经和现在的你站在同样的起点上。 + + +--------------- +感谢Paolo Ciarrocchi允许“开发流程”部分基于他所写的文章 +(http://linux.tar.bz/articles/2.6-development_process)，感谢Randy +Dunlap和Gerrit Huizenga完善了应该说和不该说的列表。感谢Pat Mochel, Hanna +Linder, Randy Dunlap, Kay Sievers, Vojtech Pavlik, Jan Kara, Josh Boyer, +Kees Cook, Andrew Morton, Andi Kleen, Vadim Lobanov, Jesper Juhl, Adrian +Bunk, Keri Harris, Frans Pop, David A. Wheeler, Junio Hamano, Michael +Kerrisk和Alex Shepard的评审、建议和贡献。没有他们的帮助，这篇文档是不可 +能完成的。 + + + +英文版维护者： Greg Kroah-Hartman <greg@kroah.com> diff --git a/Documentation/zh_CN/stable_api_nonsense.txt b/Documentation/zh_CN/stable_api_nonsense.txt new file mode 100644 index 00000000000..c26a27d1ee7 --- /dev/null +++ b/Documentation/zh_CN/stable_api_nonsense.txt @@ -0,0 +1,157 @@ +Chinese translated version of Documentation/stable_api_nonsense.txt + +If you have any comment or update to the content, please contact the +original document maintainer directly. However, if you have problem +communicating in English you can also ask the Chinese maintainer for help. +Contact the Chinese maintainer, if this translation is outdated or there +is problem with translation. + +Maintainer: Greg Kroah-Hartman <greg@kroah.com> +Chinese maintainer: TripleX Chung <zhongyu@18mail.cn> +--------------------------------------------------------------------- +Documentation/stable_api_nonsense.txt 的中文翻译 + +如果想评论或更新本文的内容，请直接联系原文档的维护者。如果你使用英文 +交流有困难的话，也可以向中文版维护者求助。如果本翻译更新不及时或者翻 +译存在问题，请联系中文版维护者。 + +英文版维护者： Greg Kroah-Hartman <greg@kroah.com> +中文版维护者： 钟宇 TripleX Chung <zhongyu@18mail.cn> +中文版翻译者： 钟宇 TripleX Chung <zhongyu@18mail.cn> +中文版校译者： 李阳 Li Yang <leoli@freescale.com> +以下为正文 +--------------------------------------------------------------------- + +写作本文档的目的，是为了解释为什么Linux既没有二进制内核接口，也没有稳定 +的内核接口。这里所说的内核接口，是指内核里的接口，而不是内核和用户空间 +的接口。内核到用户空间的接口，是提供给应用程序使用的系统调用，系统调用 +在历史上几乎没有过变化，将来也不会有变化。我有一些老应用程序是在0.9版本 +或者更早版本的内核上编译的，在使用2.6版本内核的Linux发布上依然用得很好 +。用户和应用程序作者可以将这个接口看成是稳定的。 + + +执行纲要 +-------- + +你也许以为自己想要稳定的内核接口，但是你不清楚你要的实际上不是它。你需 +要的其实是稳定的驱动程序，而你只有将驱动程序放到公版内核的源代码树里， +才有可能达到这个目的。而且这样做还有很多其它好处，正是因为这些好处使得 +Linux能成为强壮，稳定，成熟的操作系统，这也是你最开始选择Linux的原因。 + + +入门 +----- + +只有那些写驱动程序的“怪人”才会担心内核接口的改变，对广大用户来说，既 +看不到内核接口，也不需要去关心它。 + +首先，我不打算讨论关于任何非GPL许可的内核驱动的法律问题，这些非GPL许可 +的驱动程序包括不公开源代码，隐藏源代码，二进制或者是用源代码包装，或者 +是其它任何形式的不能以GPL许可公开源代码的驱动程序。如果有法律问题，请咨 +询律师，我只是一个程序员，所以我只打算探讨技术问题（不是小看法律问题， +法律问题很实际，并且需要一直关注）。 + +既然只谈技术问题，我们就有了下面两个主题：二进制内核接口和稳定的内核源 +代码接口。这两个问题是互相关联的，让我们先解决掉二进制接口的问题。 + + +二进制内核接口 +-------------- +假如我们有一个稳定的内核源代码接口，那么自然而然的，我们就拥有了稳定的 +二进制接口，是这样的吗？错。让我们看看关于Linux内核的几点事实： + - 取决于所用的C编译器的版本，不同的内核数据结构里的结构体的对齐方 +式会有差别，代码中不同函数的表现形式也不一样（函数是不是被inline编译取 +决于编译器行为）。不同的函数的表现形式并不重要，但是数据结构内部的对齐 +方式很关键。 + - 取决于内核的配置选项，不同的选项会让内核的很多东西发生改变： + - 同一个结构体可能包含不同的成员变量 + - 有的函数可能根本不会被实现（比如编译的时候没有选择SMP支持 +，一些锁函数就会被定义成空函数）。 + - 内核使用的内存会以不同的方式对齐，这取决于不同的内核配置选 +项。 + - Linux可以在很多的不同体系结构的处理器上运行。在某个体系结构上编 +译好的二进制驱动程序，不可能在另外一个体系结构上正确的运行。 + +对于一个特定的内核，满足这些条件并不难，使用同一个C编译器和同样的内核配 +置选项来编译驱动程序模块就可以了。这对于给一个特定Linux发布的特定版本提 +供驱动程序，是完全可以满足需求的。但是如果你要给不同发布的不同版本都发 +布一个驱动程序，就需要在每个发布上用不同的内核设置参数都编译一次内核， +这简直跟噩梦一样。而且还要注意到，每个Linux发布还提供不同的Linux内核， +这些内核都针对不同的硬件类型进行了优化（有很多种不同的处理器，还有不同 +的内核设置选项）。所以每发布一次驱动程序，都需要提供很多不同版本的内核 +模块。 + +相信我，如果你真的要采取这种发布方式，一定会慢慢疯掉，我很久以前就有过 +深刻的教训... + + +稳定的内核源代码接口 +-------------------- + +如果有人不将他的内核驱动程序，放入公版内核的源代码树，而又想让驱动程序 +一直保持在最新的内核中可用，那么这个话题将会变得没完没了。 + 内核开发是持续而且快节奏的，从来都不会慢下来。内核开发人员在当前接口中 +找到bug，或者找到更好的实现方式。一旦发现这些，他们就很快会去修改当前的 +接口。修改接口意味着，函数名可能会改变，结构体可能被扩充或者删减，函数 +的参数也可能发生改变。一旦接口被修改，内核中使用这些接口的地方需要同时 +修正，这样才能保证所有的东西继续工作。 + +举一个例子，内核的USB驱动程序接口在USB子系统的整个生命周期中，至少经历 +了三次重写。这些重写解决以下问题： + - 把数据流从同步模式改成非同步模式，这个改动减少了一些驱动程序的 +复杂度，提高了所有USB驱动程序的吞吐率，这样几乎所有的USB设备都能以最大 +速率工作了。 + - 修改了USB核心代码中为USB驱动分配数据包内存的方式，所有的驱动都 +需要提供更多的参数给USB核心，以修正了很多已经被记录在案的死锁。 + +这和一些封闭源代码的操作系统形成鲜明的对比，在那些操作系统上，不得不额 +外的维护旧的USB接口。这导致了一个可能性，新的开发者依然会不小心使用旧的 +接口，以不恰当的方式编写代码，进而影响到操作系统的稳定性。 + 在上面的例子中，所有的开发者都同意这些重要的改动，在这样的情况下修改代 +价很低。如果Linux保持一个稳定的内核源代码接口，那么就得创建一个新的接口 +；旧的，有问题的接口必须一直维护，给Linux USB开发者带来额外的工作。既然 +所有的Linux USB驱动的作者都是利用自己的时间工作，那么要求他们去做毫无意 +义的免费额外工作，是不可能的。 + 安全问题对Linux来说十分重要。一个安全问题被发现，就会在短时间内得到修 +正。在很多情况下，这将导致Linux内核中的一些接口被重写，以从根本上避免安 +全问题。一旦接口被重写，所有使用这些接口的驱动程序，必须同时得到修正， +以确定安全问题已经得到修复并且不可能在未来还有同样的安全问题。如果内核 +内部接口不允许改变，那么就不可能修复这样的安全问题，也不可能确认这样的 +安全问题以后不会发生。 +开发者一直在清理内核接口。如果一个接口没有人在使用了，它就会被删除。这 +样可以确保内核尽可能的小，而且所有潜在的接口都会得到尽可能完整的测试 +（没有人使用的接口是不可能得到良好的测试的）。 + + +要做什么 +------- + +如果你写了一个Linux内核驱动，但是它还不在Linux源代码树里，作为一个开发 +者，你应该怎么做？为每个发布的每个版本提供一个二进制驱动，那简直是一个 +噩梦，要跟上永远处于变化之中的内核接口，也是一件辛苦活。 +很简单，让你的驱动进入内核源代码树（要记得我们在谈论的是以GPL许可发行 +的驱动，如果你的代码不符合GPL，那么祝你好运，你只能自己解决这个问题了， +你这个吸血鬼<把Andrew和Linus对吸血鬼的定义链接到这里>）。当你的代码加入 +公版内核源代码树之后，如果一个内核接口改变，你的驱动会直接被修改接口的 +那个人修改。保证你的驱动永远都可以编译通过，并且一直工作，你几乎不需要 +做什么事情。 + +把驱动放到内核源代码树里会有很多的好处： + - 驱动的质量会提升，而维护成本（对原始作者来说）会下降。 + - 其他人会给驱动添加新特性。 + - 其他人会找到驱动中的bug并修复。 + - 其他人会在驱动中找到性能优化的机会。 + - 当外部的接口的改变需要修改驱动程序的时候，其他人会修改驱动程序 +。 + - 不需要联系任何发行商，这个驱动会自动的随着所有的Linux发布一起发 +布。 + +和别的操作系统相比，Linux为更多不同的设备提供现成的驱动，而且能在更多不 +同体系结构的处理器上支持这些设备。这个经过考验的开发模式，必然是错不了 +的 :) + +------------- +感谢 Randy Dunlap, Andrew Morton, David Brownell, Hanna Linder, +Robert Love, and Nishanth Aravamudan 对于本文档早期版本的评审和建议。 + +英文版维护者： Greg Kroah-Hartman <greg@kroah.com> diff --git a/drivers/Kconfig b/drivers/Kconfig index 7916f4b86d2..ae01d86070b 100644 --- a/drivers/Kconfig +++ b/drivers/Kconfig @@ -84,4 +84,5 @@ source "drivers/auxdisplay/Kconfig" source "drivers/kvm/Kconfig" +source "drivers/uio/Kconfig" endmenu diff --git a/drivers/Makefile b/drivers/Makefile index 6d9d7fab77f..c34c8efff60 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -40,6 +40,7 @@ obj-$(CONFIG_ATA) += ata/ obj-$(CONFIG_FUSION) += message/ obj-$(CONFIG_FIREWIRE) += firewire/ obj-$(CONFIG_IEEE1394) += ieee1394/ +obj-$(CONFIG_UIO) += uio/ obj-y += cdrom/ obj-y += auxdisplay/ obj-$(CONFIG_MTD) += mtd/ diff --git a/drivers/base/core.c b/drivers/base/core.c index 0455aa78fa1..3599ab2506d 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -24,6 +24,8 @@ #include "base.h" #include "power/power.h" +extern const char *kobject_actions[]; + int (*platform_notify)(struct device * dev) = NULL; int (*platform_notify_remove)(struct device * dev) = NULL; @@ -303,10 +305,25 @@ out: static ssize_t store_uevent(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - if (memcmp(buf, "add", 3) != 0) - dev_err(dev, "uevent: unsupported action-string; this will " - "be ignored in a future kernel version"); + size_t len = count; + enum kobject_action action; + + if (len && buf[len-1] == '\n') + len--; + + for (action = 0; action < KOBJ_MAX; action++) { + if (strncmp(kobject_actions[action], buf, len) != 0) + continue; + if (kobject_actions[action][len] != '\0') + continue; + kobject_uevent(&dev->kobj, action); + goto out; + } + + dev_err(dev, "uevent: unsupported action-string; this will " + "be ignored in a future kernel version\n"); kobject_uevent(&dev->kobj, KOBJ_ADD); +out: return count; } @@ -643,6 +660,82 @@ static int setup_parent(struct device *dev, struct device *parent) return 0; } +static int device_add_class_symlinks(struct device *dev) +{ + int error; + + if (!dev->class) + return 0; + error = sysfs_create_link(&dev->kobj, &dev->class->subsys.kobj, + "subsystem"); + if (error) + goto out; + /* + * If this is not a "fake" compatible device, then create the + * symlink from the class to the device. + */ + if (dev->kobj.parent != &dev->class->subsys.kobj) { + error = sysfs_create_link(&dev->class->subsys.kobj, &dev->kobj, + dev->bus_id); + if (error) + goto out_subsys; + } + /* only bus-device parents get a "device"-link */ + if (dev->parent && dev->parent->bus) { + error = sysfs_create_link(&dev->kobj, &dev->parent->kobj, + "device"); + if (error) + goto out_busid; +#ifdef CONFIG_SYSFS_DEPRECATED + { + char * class_name = make_class_name(dev->class->name, + &dev->kobj); + if (class_name) + error = sysfs_create_link(&dev->parent->kobj, + &dev->kobj, class_name); + kfree(class_name); + if (error) + goto out_device; + } +#endif + } + return 0; + +#ifdef CONFIG_SYSFS_DEPRECATED +out_device: + if (dev->parent) + sysfs_remove_link(&dev->kobj, "device"); +#endif +out_busid: + if (dev->kobj.parent != &dev->class->subsys.kobj) + sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id); +out_subsys: + sysfs_remove_link(&dev->kobj, "subsystem"); +out: + return error; +} + +static void device_remove_class_symlinks(struct device *dev) +{ + if (!dev->class) + return; + if (dev->parent) { +#ifdef CONFIG_SYSFS_DEPRECATED + char *class_name; + + class_name = make_class_name(dev->class->name, &dev->kobj); + if (class_name) { + sysfs_remove_link(&dev->parent->kobj, class_name); + kfree(class_name); + } +#endif + sysfs_remove_link(&dev->kobj, "device"); + } + if (dev->kobj.parent != &dev->class->subsys.kobj) + sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id); + sysfs_remove_link(&dev->kobj, "subsystem"); +} + /** * device_add - add device to device hierarchy. * @dev: device. @@ -657,7 +750,6 @@ static int setup_parent(struct device *dev, struct device *parent) int device_add(struct device *dev) { struct device *parent = NULL; - char *class_name = NULL; struct class_interface *class_intf; int error = -EINVAL; @@ -697,27 +789,9 @@ int device_add(struct device *dev) goto ueventattrError; } - if (dev->class) { - sysfs_create_link(&dev->kobj, &dev->class->subsys.kobj, - "subsystem"); - /* If this is not a "fake" compatible device, then create the - * symlink from the class to the device. */ - if (dev->kobj.parent != &dev->class->subsys.kobj) - sysfs_create_link(&dev->class->subsys.kobj, - &dev->kobj, dev->bus_id); - if (parent) { - sysfs_create_link(&dev->kobj, &dev->parent->kobj, - "device"); -#ifdef CONFIG_SYSFS_DEPRECATED - class_name = make_class_name(dev->class->name, - &dev->kobj); - if (class_name) - sysfs_create_link(&dev->parent->kobj, - &dev->kobj, class_name); -#endif - } - } - + error = device_add_class_symlinks(dev); + if (error) + goto SymlinkError; error = device_add_attrs(dev); if (error) goto AttrsError; @@ -744,7 +818,6 @@ int device_add(struct device *dev) up(&dev->class->sem); } Done: - kfree(class_name); put_device(dev); return error; BusError: @@ -755,6 +828,8 @@ int device_add(struct device *dev) BUS_NOTIFY_DEL_DEVICE, dev); device_remove_attrs(dev); AttrsError: + device_remove_class_symlinks(dev); + SymlinkError: if (MAJOR(dev->devt)) device_remove_file(dev, &devt_attr); @@ -1139,7 +1214,7 @@ int device_rename(struct device *dev, char *new_name) { char *old_class_name = NULL; char *new_class_name = NULL; - char *old_symlink_name = NULL; + char *old_device_name = NULL; int error; dev = get_device(dev); @@ -1153,42 +1228,49 @@ int device_rename(struct device *dev, char *new_name) old_class_name = make_class_name(dev->class->name, &dev->kobj); #endif - if (dev->class) { - old_symlink_name = kmalloc(BUS_ID_SIZE, GFP_KERNEL); - if (!old_symlink_name) { - error = -ENOMEM; - goto out_free_old_class; - } - strlcpy(old_symlink_name, dev->bus_id, BUS_ID_SIZE); + old_device_name = kmalloc(BUS_ID_SIZE, GFP_KERNEL); + if (!old_device_name) { + error = -ENOMEM; + goto out; } - + strlcpy(old_device_name, dev->bus_id, BUS_ID_SIZE); strlcpy(dev->bus_id, new_name, BUS_ID_SIZE); error = kobject_rename(&dev->kobj, new_name); + if (error) { + strlcpy(dev->bus_id, old_device_name, BUS_ID_SIZE); + goto out; + } #ifdef CONFIG_SYSFS_DEPRECATED if (old_class_name) { new_class_name = make_class_name(dev->class->name, &dev->kobj); if (new_class_name) { - sysfs_create_link(&dev->parent->kobj, &dev->kobj, - new_class_name); + error = sysfs_create_link(&dev->parent->kobj, + &dev->kobj, new_class_name); + if (error) + goto out; sysfs_remove_link(&dev->parent->kobj, old_class_name); } } #endif if (dev->class) { - sysfs_remove_link(&dev->class->subsys.kobj, - old_symlink_name); - sysfs_create_link(&dev->class->subsys.kobj, &dev->kobj, - dev->bus_id); + sysfs_remove_link(&dev->class->subsys.kobj, old_device_name); + error = sysfs_create_link(&dev->class->subsys.kobj, &dev->kobj, + dev->bus_id); + if (error) { + /* Uh... how to unravel this if restoring can fail? */ + dev_err(dev, "%s: sysfs_create_symlink failed (%d)\n", + __FUNCTION__, error); + } } +out: put_device(dev); kfree(new_class_name); - kfree(old_symlink_name); - out_free_old_class: kfree(old_class_name); + kfree(old_device_name); return error; } diff --git a/drivers/base/power/Makefile b/drivers/base/power/Makefile index 91f230939c1..fff17800720 100644 --- a/drivers/base/power/Makefile +++ b/drivers/base/power/Makefile @@ -1,5 +1,5 @@ obj-y := shutdown.o -obj-$(CONFIG_PM) += main.o suspend.o resume.o runtime.o sysfs.o +obj-$(CONFIG_PM) += main.o suspend.o resume.o sysfs.o obj-$(CONFIG_PM_TRACE) += trace.o ifeq ($(CONFIG_DEBUG_DRIVER),y) diff --git a/drivers/base/power/power.h b/drivers/base/power/power.h index 2760f25b3ac..591a0dd5dee 100644 --- a/drivers/base/power/power.h +++ b/drivers/base/power/power.h @@ -62,11 +62,6 @@ extern int resume_device(struct device *); */ extern int suspend_device(struct device *, pm_message_t); - -/* - * runtime.c - */ - #else /* CONFIG_PM */ diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c deleted file mode 100644 index df6174d8586..00000000000 --- a/drivers/base/power/runtime.c +++ /dev/null @@ -1,85 +0,0 @@ -/* - * drivers/base/power/runtime.c - Handling dynamic device power management. - * - * Copyright (c) 2003 Patrick Mochel - * Copyright (c) 2003 Open Source Development Lab - * - */ - -#include <linux/device.h> -#include "power.h" - - -static void runtime_resume(struct device * dev) -{ - dev_dbg(dev, "resuming\n"); - if (!dev->power.power_state.event) - return; - if (!resume_device(dev)) - dev->power.power_state = PMSG_ON; -} - - -/** - * dpm_runtime_resume - Power one device back on. - * @dev: Device. - * - * Bring one device back to the on state by first powering it - * on, then restoring state. We only operate on devices that aren't - * already on. - * FIXME: We need to handle devices that are in an unknown state. - */ - -void dpm_runtime_resume(struct device * dev) -{ - mutex_lock(&dpm_mtx); - runtime_resume(dev); - mutex_unlock(&dpm_mtx); -} -EXPORT_SYMBOL(dpm_runtime_resume); - - -/** - * dpm_runtime_suspend - Put one device in low-power state. - * @dev: Device. - * @state: State to enter. - */ - -int dpm_runtime_suspend(struct device * dev, pm_message_t state) -{ - int error = 0; - - mutex_lock(&dpm_mtx); - if (dev->power.power_state.event == state.event) - goto Done; - - if (dev->power.power_state.event) - runtime_resume(dev); - - if (!(error = suspend_device(dev, state))) - dev->power.power_state = state; - Done: - mutex_unlock(&dpm_mtx); - return error; -} -EXPORT_SYMBOL(dpm_runtime_suspend); - - -#if 0 -/** - * dpm_set_power_state - Update power_state field. - * @dev: Device. - * @state: Power state device is in. - * - * This is an update mechanism for drivers to notify the core - * what power state a device is in. Device probing code may not - * always be able to tell, but we need accurate information to - * work reliably. - */ -void dpm_set_power_state(struct device * dev, pm_message_t state) -{ - mutex_lock(&dpm_mtx); - dev->power.power_state = state; - mutex_unlock(&dpm_mtx); -} -#endif /* 0 */ diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c index 2d47517dbe3..f2ed179cd69 100644 --- a/drivers/base/power/sysfs.c +++ b/drivers/base/power/sysfs.c @@ -7,69 +7,6 @@ #include "power.h" -#ifdef CONFIG_PM_SYSFS_DEPRECATED - -/** - * state - Control current power state of device - * - * show() returns the current power state of the device. '0' indicates - * the device is on. Other values (2) indicate the device is in some low - * power state. - * - * store() sets the current power state, which is an integer valued - * 0, 2, or 3. Devices with bus.suspend_late(), or bus.resume_early() - * methods fail this operation; those methods couldn't be called. - * Otherwise, - * - * - If the recorded dev->power.power_state.event matches the - * target value, nothing is done. - * - If the recorded event code is nonzero, the device is reactivated - * by calling bus.resume() and/or class.resume(). - * - If the target value is nonzero, the device is suspended by - * calling class.suspend() and/or bus.suspend() with event code - * PM_EVENT_SUSPEND. - * - * This mechanism is DEPRECATED and should only be used for testing. - */ - -static ssize_t state_show(struct device * dev, struct device_attribute *attr, char * buf) -{ - if (dev->power.power_state.event) - return sprintf(buf, "2\n"); - else - return sprintf(buf, "0\n"); -} - -static ssize_t state_store(struct device * dev, struct device_attribute *attr, const char * buf, size_t n) -{ - pm_message_t state; - int error = -EINVAL; - - /* disallow incomplete suspend sequences */ - if (dev->bus && (dev->bus->suspend_late || dev->bus->resume_early)) - return error; - - state.event = PM_EVENT_SUSPEND; - /* Older apps expected to write "3" here - confused with PCI D3 */ - if ((n == 1) && !strcmp(buf, "3")) - error = dpm_runtime_suspend(dev, state); - - if ((n == 1) && !strcmp(buf, "2")) - error = dpm_runtime_suspend(dev, state); - - if ((n == 1) && !strcmp(buf, "0")) { - dpm_runtime_resume(dev); - error = 0; - } - - return error ? error : n; -} - -static DEVICE_ATTR(state, 0644, state_show, state_store); - - -#endif /* CONFIG_PM_SYSFS_DEPRECATED */ - /* * wakeup - Report/change current wakeup option for device * @@ -143,9 +80,6 @@ static DEVICE_ATTR(wakeup, 0644, wake_show, wake_store); static struct attribute * power_attrs[] = { -#ifdef CONFIG_PM_SYSFS_DEPRECATED - &dev_attr_state.attr, -#endif &dev_attr_wakeup.attr, NULL, }; diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c index 41476abc069..db703758db9 100644 --- a/drivers/firewire/fw-ohci.c +++ b/drivers/firewire/fw-ohci.c @@ -224,6 +224,7 @@ ohci_update_phy_reg(struct fw_card *card, int addr, u32 val, old; reg_write(ohci, OHCI1394_PhyControl, OHCI1394_PhyControl_Read(addr)); + flush_writes(ohci); msleep(2); val = reg_read(ohci, OHCI1394_PhyControl); if ((val & OHCI1394_PhyControl_ReadDone) == 0) { @@ -586,7 +587,7 @@ static void context_stop(struct context *ctx) break; fw_notify("context_stop: still active (0x%08x)\n", reg); - msleep(1); + mdelay(1); } } diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index 7c53be0387f..fc984474162 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -840,7 +840,6 @@ complete_command_orb(struct sbp2_orb *base_orb, struct sbp2_status *status) container_of(base_orb, struct sbp2_command_orb, base); struct fw_unit *unit = orb->unit; struct fw_device *device = fw_device(unit->device.parent); - struct scatterlist *sg; int result; if (status != NULL) { @@ -876,11 +875,10 @@ complete_command_orb(struct sbp2_orb *base_orb, struct sbp2_status *status) dma_unmap_single(device->card->device, orb->base.request_bus, sizeof(orb->request), DMA_TO_DEVICE); - if (orb->cmd->use_sg > 0) { - sg = (struct scatterlist *)orb->cmd->request_buffer; - dma_unmap_sg(device->card->device, sg, orb->cmd->use_sg, + if (scsi_sg_count(orb->cmd) > 0) + dma_unmap_sg(device->card->device, scsi_sglist(orb->cmd), + scsi_sg_count(orb->cmd), orb->cmd->sc_data_direction); - } if (orb->page_table_bus != 0) dma_unmap_single(device->card->device, orb->page_table_bus, @@ -901,8 +899,8 @@ static int sbp2_command_orb_map_scatterlist(struct sbp2_command_orb *orb) int sg_len, l, i, j, count; dma_addr_t sg_addr; - sg = (struct scatterlist *)orb->cmd->request_buffer; - count = dma_map_sg(device->card->device, sg, orb->cmd->use_sg, + sg = scsi_sglist(orb->cmd); + count = dma_map_sg(device->card->device, sg, scsi_sg_count(orb->cmd), orb->cmd->sc_data_direction); if (count == 0) goto fail; @@ -971,7 +969,7 @@ static int sbp2_command_orb_map_scatterlist(struct sbp2_command_orb *orb) return 0; fail_page_table: - dma_unmap_sg(device->card->device, sg, orb->cmd->use_sg, + dma_unmap_sg(device->card->device, sg, scsi_sg_count(orb->cmd), orb->cmd->sc_data_direction); fail: return -ENOMEM; @@ -1031,7 +1029,7 @@ static int sbp2_scsi_queuecommand(struct scsi_cmnd *cmd, scsi_done_fn_t done) orb->request.misc |= COMMAND_ORB_DIRECTION(SBP2_DIRECTION_TO_MEDIA); - if (cmd->use_sg && sbp2_command_orb_map_scatterlist(orb) < 0) + if (scsi_sg_count(cmd) && sbp2_command_orb_map_scatterlist(orb) < 0) goto fail_mapping; fw_memcpy_to_be32(&orb->request, &orb->request, sizeof(orb->request)); diff --git a/drivers/firewire/fw-transaction.c b/drivers/firewire/fw-transaction.c index 80d0121463d..3ce8e2fbe15 100644 --- a/drivers/firewire/fw-transaction.c +++ b/drivers/firewire/fw-transaction.c @@ -605,8 +605,10 @@ fw_send_response(struct fw_card *card, struct fw_request *request, int rcode) * check is sufficient to ensure we don't send response to * broadcast packets or posted writes. */ - if (request->ack != ACK_PENDING) + if (request->ack != ACK_PENDING) { + kfree(request); return; + } if (rcode == RCODE_COMPLETE) fw_fill_response(&request->response, request->request_header, @@ -628,11 +630,6 @@ fw_core_handle_request(struct fw_card *card, struct fw_packet *p) unsigned long flags; int tcode, destination, source; - if (p->payload_length > 2048) { - /* FIXME: send error response. */ - return; - } - if (p->ack != ACK_PENDING && p->ack != ACK_COMPLETE) return; diff --git a/drivers/firewire/fw-transaction.h b/drivers/firewire/fw-transaction.h index 5abed193f4a..5ceaccd1056 100644 --- a/drivers/firewire/fw-transaction.h +++ b/drivers/firewire/fw-transaction.h @@ -123,6 +123,10 @@ typedef void (*fw_transaction_callback_t)(struct fw_card *card, int rcode, size_t length, void *callback_data); +/* + * Important note: The callback must guarantee that either fw_send_response() + * or kfree() is called on the @request. + */ typedef void (*fw_address_callback_t)(struct fw_card *card, struct fw_request *request, int tcode, int destination, int source, diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index 9820c67ba47..4df269f5d9a 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -3374,7 +3374,7 @@ int ib_cm_init_qp_attr(struct ib_cm_id *cm_id, } EXPORT_SYMBOL(ib_cm_init_qp_attr); -void cm_get_ack_delay(struct cm_device *cm_dev) +static void cm_get_ack_delay(struct cm_device *cm_dev) { struct ib_device_attr attr; diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 23af7a032a0..9ffb9987450 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -573,7 +573,7 @@ int rdma_init_qp_attr(struct rdma_cm_id *id, struct ib_qp_attr *qp_attr, break; case RDMA_TRANSPORT_IWARP: if (!id_priv->cm_id.iw) { - qp_attr->qp_access_flags = IB_ACCESS_LOCAL_WRITE; + qp_attr->qp_access_flags = 0; *qp_attr_mask = IB_QP_STATE | IB_QP_ACCESS_FLAGS; } else ret = iw_cm_init_qp_attr(id_priv->cm_id.iw, qp_attr, diff --git a/drivers/infiniband/hw/cxgb3/iwch_cm.c b/drivers/infiniband/hw/cxgb3/iwch_cm.c index 3b41dc0c39d..5dc68cd5621 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_cm.c +++ b/drivers/infiniband/hw/cxgb3/iwch_cm.c @@ -1914,6 +1914,7 @@ int iwch_create_listen(struct iw_cm_id *cm_id, int backlog) fail3: cxgb3_free_stid(ep->com.tdev, ep->stid); fail2: + cm_id->rem_ref(cm_id); put_ep(&ep->com); fail1: out: diff --git a/drivers/infiniband/hw/ehca/ehca_av.c b/drivers/infiniband/hw/ehca/ehca_av.c index 3cd6bf3402d..e53a97af126 100644 --- a/drivers/infiniband/hw/ehca/ehca_av.c +++ b/drivers/infiniband/hw/ehca/ehca_av.c @@ -79,7 +79,7 @@ struct ib_ah *ehca_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr) av->av.ipd = (ah_mult > 0) ? ((ehca_mult - 1) / ah_mult) : 0; } else - av->av.ipd = ehca_static_rate; + av->av.ipd = ehca_static_rate; av->av.lnh = ah_attr->ah_flags; av->av.grh.word_0 = EHCA_BMASK_SET(GRH_IPVERSION_MASK, 6); diff --git a/drivers/infiniband/hw/ehca/ehca_classes.h b/drivers/infiniband/hw/ehca/ehca_classes.h index daf823ea1ac..043e4fb23fb 100644 --- a/drivers/infiniband/hw/ehca/ehca_classes.h +++ b/drivers/infiniband/hw/ehca/ehca_classes.h @@ -204,11 +204,11 @@ struct ehca_mr { spinlock_t mrlock; enum ehca_mr_flag flags; - u32 num_pages; /* number of MR pages */ - u32 num_4k; /* number of 4k "page" portions to form MR */ + u32 num_kpages; /* number of kernel pages */ + u32 num_hwpages; /* number of hw pages to form MR */ int acl; /* ACL (stored here for usage in reregister) */ u64 *start; /* virtual start address (stored here for */ - /* usage in reregister) */ + /* usage in reregister) */ u64 size; /* size (stored here for usage in reregister) */ u32 fmr_page_size; /* page size for FMR */ u32 fmr_max_pages; /* max pages for FMR */ @@ -217,9 +217,6 @@ struct ehca_mr { /* fw specific data */ struct ipz_mrmw_handle ipz_mr_handle; /* MR handle for h-calls */ struct h_galpas galpas; - /* data for userspace bridge */ - u32 nr_of_pages; - void *pagearray; }; struct ehca_mw { @@ -241,26 +238,29 @@ enum ehca_mr_pgi_type { struct ehca_mr_pginfo { enum ehca_mr_pgi_type type; - u64 num_pages; - u64 page_cnt; - u64 num_4k; /* number of 4k "page" portions */ - u64 page_4k_cnt; /* counter for 4k "page" portions */ - u64 next_4k; /* next 4k "page" portion in buffer/chunk/listelem */ - - /* type EHCA_MR_PGI_PHYS section */ - int num_phys_buf; - struct ib_phys_buf *phys_buf_array; - u64 next_buf; - - /* type EHCA_MR_PGI_USER section */ - struct ib_umem *region; - struct ib_umem_chunk *next_chunk; - u64 next_nmap; - - /* type EHCA_MR_PGI_FMR section */ - u64 *page_list; - u64 next_listelem; - /* next_4k also used within EHCA_MR_PGI_FMR */ + u64 num_kpages; + u64 kpage_cnt; + u64 num_hwpages; /* number of hw pages */ + u64 hwpage_cnt; /* counter for hw pages */ + u64 next_hwpage; /* next hw page in buffer/chunk/listelem */ + + union { + struct { /* type EHCA_MR_PGI_PHYS section */ + int num_phys_buf; + struct ib_phys_buf *phys_buf_array; + u64 next_buf; + } phy; + struct { /* type EHCA_MR_PGI_USER section */ + struct ib_umem *region; + struct ib_umem_chunk *next_chunk; + u64 next_nmap; + } usr; + struct { /* type EHCA_MR_PGI_FMR section */ + u64 fmr_pgsize; + u64 *page_list; + u64 next_listelem; + } fmr; + } u; }; /* output parameters for MR/FMR hipz calls */ @@ -391,6 +391,6 @@ struct ehca_alloc_qp_parms { int ehca_cq_assign_qp(struct ehca_cq *cq, struct ehca_qp *qp); int ehca_cq_unassign_qp(struct ehca_cq *cq, unsigned int qp_num); -struct ehca_qp* ehca_cq_get_qp(struct ehca_cq *cq, int qp_num); +struct ehca_qp *ehca_cq_get_qp(struct ehca_cq *cq, int qp_num); #endif diff --git a/drivers/infiniband/hw/ehca/ehca_classes_pSeries.h b/drivers/infiniband/hw/ehca/ehca_classes_pSeries.h index fb3df5c271e..1798e6466bd 100644 --- a/drivers/infiniband/hw/ehca/ehca_classes_pSeries.h +++ b/drivers/infiniband/hw/ehca/ehca_classes_pSeries.h @@ -154,83 +154,83 @@ struct hcp_modify_qp_control_block { u32 reserved_70_127[58]; /* 70 */ }; -#define MQPCB_MASK_QKEY EHCA_BMASK_IBM(0,0) -#define MQPCB_MASK_SEND_PSN EHCA_BMASK_IBM(2,2) -#define MQPCB_MASK_RECEIVE_PSN EHCA_BMASK_IBM(3,3) -#define MQPCB_MASK_PRIM_PHYS_PORT EHCA_BMASK_IBM(4,4) -#define MQPCB_PRIM_PHYS_PORT EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_ALT_PHYS_PORT EHCA_BMASK_IBM(5,5) -#define MQPCB_MASK_PRIM_P_KEY_IDX EHCA_BMASK_IBM(6,6) -#define MQPCB_PRIM_P_KEY_IDX EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_ALT_P_KEY_IDX EHCA_BMASK_IBM(7,7) -#define MQPCB_MASK_RDMA_ATOMIC_CTRL EHCA_BMASK_IBM(8,8) -#define MQPCB_MASK_QP_STATE EHCA_BMASK_IBM(9,9) -#define MQPCB_QP_STATE EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_RDMA_NR_ATOMIC_RESP_RES EHCA_BMASK_IBM(11,11) -#define MQPCB_MASK_PATH_MIGRATION_STATE EHCA_BMASK_IBM(12,12) -#define MQPCB_MASK_RDMA_ATOMIC_OUTST_DEST_QP EHCA_BMASK_IBM(13,13) -#define MQPCB_MASK_DEST_QP_NR EHCA_BMASK_IBM(14,14) -#define MQPCB_MASK_MIN_RNR_NAK_TIMER_FIELD EHCA_BMASK_IBM(15,15) -#define MQPCB_MASK_SERVICE_LEVEL EHCA_BMASK_IBM(16,16) -#define MQPCB_MASK_SEND_GRH_FLAG EHCA_BMASK_IBM(17,17) -#define MQPCB_MASK_RETRY_COUNT EHCA_BMASK_IBM(18,18) -#define MQPCB_MASK_TIMEOUT EHCA_BMASK_IBM(19,19) -#define MQPCB_MASK_PATH_MTU EHCA_BMASK_IBM(20,20) -#define MQPCB_PATH_MTU EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_MAX_STATIC_RATE EHCA_BMASK_IBM(21,21) -#define MQPCB_MAX_STATIC_RATE EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_DLID EHCA_BMASK_IBM(22,22) -#define MQPCB_DLID EHCA_BMASK_IBM(16,31) -#define MQPCB_MASK_RNR_RETRY_COUNT EHCA_BMASK_IBM(23,23) -#define MQPCB_RNR_RETRY_COUNT EHCA_BMASK_IBM(29,31) -#define MQPCB_MASK_SOURCE_PATH_BITS EHCA_BMASK_IBM(24,24) -#define MQPCB_SOURCE_PATH_BITS EHCA_BMASK_IBM(25,31) -#define MQPCB_MASK_TRAFFIC_CLASS EHCA_BMASK_IBM(25,25) -#define MQPCB_TRAFFIC_CLASS EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_HOP_LIMIT EHCA_BMASK_IBM(26,26) -#define MQPCB_HOP_LIMIT EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_SOURCE_GID_IDX EHCA_BMASK_IBM(27,27) -#define MQPCB_SOURCE_GID_IDX EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_FLOW_LABEL EHCA_BMASK_IBM(28,28) -#define MQPCB_FLOW_LABEL EHCA_BMASK_IBM(12,31) -#define MQPCB_MASK_DEST_GID EHCA_BMASK_IBM(30,30) -#define MQPCB_MASK_SERVICE_LEVEL_AL EHCA_BMASK_IBM(31,31) -#define MQPCB_SERVICE_LEVEL_AL EHCA_BMASK_IBM(28,31) -#define MQPCB_MASK_SEND_GRH_FLAG_AL EHCA_BMASK_IBM(32,32) -#define MQPCB_SEND_GRH_FLAG_AL EHCA_BMASK_IBM(31,31) -#define MQPCB_MASK_RETRY_COUNT_AL EHCA_BMASK_IBM(33,33) -#define MQPCB_RETRY_COUNT_AL EHCA_BMASK_IBM(29,31) -#define MQPCB_MASK_TIMEOUT_AL EHCA_BMASK_IBM(34,34) -#define MQPCB_TIMEOUT_AL EHCA_BMASK_IBM(27,31) -#define MQPCB_MASK_MAX_STATIC_RATE_AL EHCA_BMASK_IBM(35,35) -#define MQPCB_MAX_STATIC_RATE_AL EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_DLID_AL EHCA_BMASK_IBM(36,36) -#define MQPCB_DLID_AL EHCA_BMASK_IBM(16,31) -#define MQPCB_MASK_RNR_RETRY_COUNT_AL EHCA_BMASK_IBM(37,37) -#define MQPCB_RNR_RETRY_COUNT_AL EHCA_BMASK_IBM(29,31) -#define MQPCB_MASK_SOURCE_PATH_BITS_AL EHCA_BMASK_IBM(38,38) -#define MQPCB_SOURCE_PATH_BITS_AL EHCA_BMASK_IBM(25,31) -#define MQPCB_MASK_TRAFFIC_CLASS_AL EHCA_BMASK_IBM(39,39) -#define MQPCB_TRAFFIC_CLASS_AL EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_HOP_LIMIT_AL EHCA_BMASK_IBM(40,40) -#define MQPCB_HOP_LIMIT_AL EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_SOURCE_GID_IDX_AL EHCA_BMASK_IBM(41,41) -#define MQPCB_SOURCE_GID_IDX_AL EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_FLOW_LABEL_AL EHCA_BMASK_IBM(42,42) -#define MQPCB_FLOW_LABEL_AL EHCA_BMASK_IBM(12,31) -#define MQPCB_MASK_DEST_GID_AL EHCA_BMASK_IBM(44,44) -#define MQPCB_MASK_MAX_NR_OUTST_SEND_WR EHCA_BMASK_IBM(45,45) -#define MQPCB_MAX_NR_OUTST_SEND_WR EHCA_BMASK_IBM(16,31) -#define MQPCB_MASK_MAX_NR_OUTST_RECV_WR EHCA_BMASK_IBM(46,46) -#define MQPCB_MAX_NR_OUTST_RECV_WR EHCA_BMASK_IBM(16,31) -#define MQPCB_MASK_DISABLE_ETE_CREDIT_CHECK EHCA_BMASK_IBM(47,47) -#define MQPCB_DISABLE_ETE_CREDIT_CHECK EHCA_BMASK_IBM(31,31) -#define MQPCB_QP_NUMBER EHCA_BMASK_IBM(8,31) -#define MQPCB_MASK_QP_ENABLE EHCA_BMASK_IBM(48,48) -#define MQPCB_QP_ENABLE EHCA_BMASK_IBM(31,31) -#define MQPCB_MASK_CURR_SRQ_LIMIT EHCA_BMASK_IBM(49,49) -#define MQPCB_CURR_SRQ_LIMIT EHCA_BMASK_IBM(16,31) -#define MQPCB_MASK_QP_AFF_ASYN_EV_LOG_REG EHCA_BMASK_IBM(50,50) -#define MQPCB_MASK_SHARED_RQ_HNDL EHCA_BMASK_IBM(51,51) +#define MQPCB_MASK_QKEY EHCA_BMASK_IBM( 0, 0) +#define MQPCB_MASK_SEND_PSN EHCA_BMASK_IBM( 2, 2) +#define MQPCB_MASK_RECEIVE_PSN EHCA_BMASK_IBM( 3, 3) +#define MQPCB_MASK_PRIM_PHYS_PORT EHCA_BMASK_IBM( 4, 4) +#define MQPCB_PRIM_PHYS_PORT EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_ALT_PHYS_PORT EHCA_BMASK_IBM( 5, 5) +#define MQPCB_MASK_PRIM_P_KEY_IDX EHCA_BMASK_IBM( 6, 6) +#define MQPCB_PRIM_P_KEY_IDX EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_ALT_P_KEY_IDX EHCA_BMASK_IBM( 7, 7) +#define MQPCB_MASK_RDMA_ATOMIC_CTRL EHCA_BMASK_IBM( 8, 8) +#define MQPCB_MASK_QP_STATE EHCA_BMASK_IBM( 9, 9) +#define MQPCB_QP_STATE EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_RDMA_NR_ATOMIC_RESP_RES EHCA_BMASK_IBM(11, 11) +#define MQPCB_MASK_PATH_MIGRATION_STATE EHCA_BMASK_IBM(12, 12) +#define MQPCB_MASK_RDMA_ATOMIC_OUTST_DEST_QP EHCA_BMASK_IBM(13, 13) +#define MQPCB_MASK_DEST_QP_NR EHCA_BMASK_IBM(14, 14) +#define MQPCB_MASK_MIN_RNR_NAK_TIMER_FIELD EHCA_BMASK_IBM(15, 15) +#define MQPCB_MASK_SERVICE_LEVEL EHCA_BMASK_IBM(16, 16) +#define MQPCB_MASK_SEND_GRH_FLAG EHCA_BMASK_IBM(17, 17) +#define MQPCB_MASK_RETRY_COUNT EHCA_BMASK_IBM(18, 18) +#define MQPCB_MASK_TIMEOUT EHCA_BMASK_IBM(19, 19) +#define MQPCB_MASK_PATH_MTU EHCA_BMASK_IBM(20, 20) +#define MQPCB_PATH_MTU EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_MAX_STATIC_RATE EHCA_BMASK_IBM(21, 21) +#define MQPCB_MAX_STATIC_RATE EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_DLID EHCA_BMASK_IBM(22, 22) +#define MQPCB_DLID EHCA_BMASK_IBM(16, 31) +#define MQPCB_MASK_RNR_RETRY_COUNT EHCA_BMASK_IBM(23, 23) +#define MQPCB_RNR_RETRY_COUNT EHCA_BMASK_IBM(29, 31) +#define MQPCB_MASK_SOURCE_PATH_BITS EHCA_BMASK_IBM(24, 24) +#define MQPCB_SOURCE_PATH_BITS EHCA_BMASK_IBM(25, 31) +#define MQPCB_MASK_TRAFFIC_CLASS EHCA_BMASK_IBM(25, 25) +#define MQPCB_TRAFFIC_CLASS EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_HOP_LIMIT EHCA_BMASK_IBM(26, 26) +#define MQPCB_HOP_LIMIT EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_SOURCE_GID_IDX EHCA_BMASK_IBM(27, 27) +#define MQPCB_SOURCE_GID_IDX EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_FLOW_LABEL EHCA_BMASK_IBM(28, 28) +#define MQPCB_FLOW_LABEL EHCA_BMASK_IBM(12, 31) +#define MQPCB_MASK_DEST_GID EHCA_BMASK_IBM(30, 30) +#define MQPCB_MASK_SERVICE_LEVEL_AL EHCA_BMASK_IBM(31, 31) +#define MQPCB_SERVICE_LEVEL_AL EHCA_BMASK_IBM(28, 31) +#define MQPCB_MASK_SEND_GRH_FLAG_AL EHCA_BMASK_IBM(32, 32) +#define MQPCB_SEND_GRH_FLAG_AL EHCA_BMASK_IBM(31, 31) +#define MQPCB_MASK_RETRY_COUNT_AL EHCA_BMASK_IBM(33, 33) +#define MQPCB_RETRY_COUNT_AL EHCA_BMASK_IBM(29, 31) +#define MQPCB_MASK_TIMEOUT_AL EHCA_BMASK_IBM(34, 34) +#define MQPCB_TIMEOUT_AL EHCA_BMASK_IBM(27, 31) +#define MQPCB_MASK_MAX_STATIC_RATE_AL EHCA_BMASK_IBM(35, 35) +#define MQPCB_MAX_STATIC_RATE_AL EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_DLID_AL EHCA_BMASK_IBM(36, 36) +#define MQPCB_DLID_AL EHCA_BMASK_IBM(16, 31) +#define MQPCB_MASK_RNR_RETRY_COUNT_AL EHCA_BMASK_IBM(37, 37) +#define MQPCB_RNR_RETRY_COUNT_AL EHCA_BMASK_IBM(29, 31) +#define MQPCB_MASK_SOURCE_PATH_BITS_AL EHCA_BMASK_IBM(38, 38) +#define MQPCB_SOURCE_PATH_BITS_AL EHCA_BMASK_IBM(25, 31) +#define MQPCB_MASK_TRAFFIC_CLASS_AL EHCA_BMASK_IBM(39, 39) +#define MQPCB_TRAFFIC_CLASS_AL EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_HOP_LIMIT_AL EHCA_BMASK_IBM(40, 40) +#define MQPCB_HOP_LIMIT_AL EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_SOURCE_GID_IDX_AL EHCA_BMASK_IBM(41, 41) +#define MQPCB_SOURCE_GID_IDX_AL EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_FLOW_LABEL_AL EHCA_BMASK_IBM(42, 42) +#define MQPCB_FLOW_LABEL_AL EHCA_BMASK_IBM(12, 31) +#define MQPCB_MASK_DEST_GID_AL EHCA_BMASK_IBM(44, 44) +#define MQPCB_MASK_MAX_NR_OUTST_SEND_WR EHCA_BMASK_IBM(45, 45) +#define MQPCB_MAX_NR_OUTST_SEND_WR EHCA_BMASK_IBM(16, 31) +#define MQPCB_MASK_MAX_NR_OUTST_RECV_WR EHCA_BMASK_IBM(46, 46) +#define MQPCB_MAX_NR_OUTST_RECV_WR EHCA_BMASK_IBM(16, 31) +#define MQPCB_MASK_DISABLE_ETE_CREDIT_CHECK EHCA_BMASK_IBM(47, 47) +#define MQPCB_DISABLE_ETE_CREDIT_CHECK EHCA_BMASK_IBM(31, 31) +#define MQPCB_QP_NUMBER EHCA_BMASK_IBM( 8, 31) +#define MQPCB_MASK_QP_ENABLE EHCA_BMASK_IBM(48, 48) +#define MQPCB_QP_ENABLE EHCA_BMASK_IBM(31, 31) +#define MQPCB_MASK_CURR_SRQ_LIMIT EHCA_BMASK_IBM(49, 49) +#define MQPCB_CURR_SRQ_LIMIT EHCA_BMASK_IBM(16, 31) +#define MQPCB_MASK_QP_AFF_ASYN_EV_LOG_REG EHCA_BMASK_IBM(50, 50) +#define MQPCB_MASK_SHARED_RQ_HNDL EHCA_BMASK_IBM(51, 51) #endif /* __EHCA_CLASSES_PSERIES_H__ */ diff --git a/drivers/infiniband/hw/ehca/ehca_cq.c b/drivers/infiniband/hw/ehca/ehca_cq.c index 01d4a148bd7..9e87883b561 100644 --- a/drivers/infiniband/hw/ehca/ehca_cq.c +++ b/drivers/infiniband/hw/ehca/ehca_cq.c @@ -97,7 +97,7 @@ int ehca_cq_unassign_qp(struct ehca_cq *cq, unsigned int real_qp_num) return ret; } -struct ehca_qp* ehca_cq_get_qp(struct ehca_cq *cq, int real_qp_num) +struct ehca_qp *ehca_cq_get_qp(struct ehca_cq *cq, int real_qp_num) { struct ehca_qp *ret = NULL; unsigned int key = real_qp_num & (QP_HASHTAB_LEN-1); diff --git a/drivers/infiniband/hw/ehca/ehca_eq.c b/drivers/infiniband/hw/ehca/ehca_eq.c index 4961eb88827..4825975f88c 100644 --- a/drivers/infiniband/hw/ehca/ehca_eq.c +++ b/drivers/infiniband/hw/ehca/ehca_eq.c @@ -96,7 +96,8 @@ int ehca_create_eq(struct ehca_shca *shca, for (i = 0; i < nr_pages; i++) { u64 rpage; - if (!(vpage = ipz_qpageit_get_inc(&eq->ipz_queue))) { + vpage = ipz_qpageit_get_inc(&eq->ipz_queue); + if (!vpage) { ret = H_RESOURCE; goto create_eq_exit2; } diff --git a/drivers/infiniband/hw/ehca/ehca_hca.c b/drivers/infiniband/hw/ehca/ehca_hca.c index bbd3c6a5822..fc19ef9fd96 100644 --- a/drivers/infiniband/hw/ehca/ehca_hca.c +++ b/drivers/infiniband/hw/ehca/ehca_hca.c @@ -127,6 +127,7 @@ int ehca_query_port(struct ib_device *ibdev, u8 port, struct ib_port_attr *props) { int ret = 0; + u64 h_ret; struct ehca_shca *shca = container_of(ibdev, struct ehca_shca, ib_device); struct hipz_query_port *rblock; @@ -137,7 +138,8 @@ int ehca_query_port(struct ib_device *ibdev, return -ENOMEM; } - if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS) { + h_ret = hipz_h_query_port(shca->ipz_hca_handle, port, rblock); + if (h_ret != H_SUCCESS) { ehca_err(&shca->ib_device, "Can't query port properties"); ret = -EINVAL; goto query_port1; @@ -197,6 +199,7 @@ int ehca_query_sma_attr(struct ehca_shca *shca, u8 port, struct ehca_sma_attr *attr) { int ret = 0; + u64 h_ret; struct hipz_query_port *rblock; rblock = ehca_alloc_fw_ctrlblock(GFP_ATOMIC); @@ -205,7 +208,8 @@ int ehca_query_sma_attr(struct ehca_shca *shca, return -ENOMEM; } - if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS) { + h_ret = hipz_h_query_port(shca->ipz_hca_handle, port, rblock); + if (h_ret != H_SUCCESS) { ehca_err(&shca->ib_device, "Can't query port properties"); ret = -EINVAL; goto query_sma_attr1; @@ -230,9 +234,11 @@ query_sma_attr1: int ehca_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey) { int ret = 0; - struct ehca_shca *shca = container_of(ibdev, struct ehca_shca, ib_device); + u64 h_ret; + struct ehca_shca *shca; struct hipz_query_port *rblock; + shca = container_of(ibdev, struct ehca_shca, ib_device); if (index > 16) { ehca_err(&shca->ib_device, "Invalid index: %x.", index); return -EINVAL; @@ -244,7 +250,8 @@ int ehca_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey) return -ENOMEM; } - if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS) { + h_ret = hipz_h_query_port(shca->ipz_hca_handle, port, rblock); + if (h_ret != H_SUCCESS) { ehca_err(&shca->ib_device, "Can't query port properties"); ret = -EINVAL; goto query_pkey1; @@ -262,6 +269,7 @@ int ehca_query_gid(struct ib_device *ibdev, u8 port, int index, union ib_gid *gid) { int ret = 0; + u64 h_ret; struct ehca_shca *shca = container_of(ibdev, struct ehca_shca, ib_device); struct hipz_query_port *rblock; @@ -277,7 +285,8 @@ int ehca_query_gid(struct ib_device *ibdev, u8 port, return -ENOMEM; } - if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS) { + h_ret = hipz_h_query_port(shca->ipz_hca_handle, port, rblock); + if (h_ret != H_SUCCESS) { ehca_err(&shca->ib_device, "Can't query port properties"); ret = -EINVAL; goto query_gid1; @@ -302,11 +311,12 @@ int ehca_modify_port(struct ib_device *ibdev, struct ib_port_modify *props) { int ret = 0; - struct ehca_shca *shca = container_of(ibdev, struct ehca_shca, ib_device); + struct ehca_shca *shca; struct hipz_query_port *rblock; u32 cap; u64 hret; + shca = container_of(ibdev, struct ehca_shca, ib_device); if ((props->set_port_cap_mask | props->clr_port_cap_mask) & ~allowed_port_caps) { ehca_err(&shca->ib_device, "Non-changeable bits set in masks " @@ -325,7 +335,8 @@ int ehca_modify_port(struct ib_device *ibdev, goto modify_port1; } - if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS) { + hret = hipz_h_query_port(shca->ipz_hca_handle, port, rblock); + if (hret != H_SUCCESS) { ehca_err(&shca->ib_device, "Can't query port properties"); ret = -EINVAL; goto modify_port2; @@ -337,7 +348,8 @@ int ehca_modify_port(struct ib_device *ibdev, hret = hipz_h_modify_port(shca->ipz_hca_handle, port, cap, props->init_type, port_modify_mask); if (hret != H_SUCCESS) { - ehca_err(&shca->ib_device, "Modify port failed hret=%lx", hret); + ehca_err(&shca->ib_device, "Modify port failed hret=%lx", + hret); ret = -EINVAL; } diff --git a/drivers/infiniband/hw/ehca/ehca_irq.c b/drivers/infiniband/hw/ehca/ehca_irq.c index 96eba383075..4fb01fcb63a 100644 --- a/drivers/infiniband/hw/ehca/ehca_irq.c +++ b/drivers/infiniband/hw/ehca/ehca_irq.c @@ -49,26 +49,26 @@ #include "hipz_fns.h" #include "ipz_pt_fn.h" -#define EQE_COMPLETION_EVENT EHCA_BMASK_IBM(1,1) -#define EQE_CQ_QP_NUMBER EHCA_BMASK_IBM(8,31) -#define EQE_EE_IDENTIFIER EHCA_BMASK_IBM(2,7) -#define EQE_CQ_NUMBER EHCA_BMASK_IBM(8,31) -#define EQE_QP_NUMBER EHCA_BMASK_IBM(8,31) -#define EQE_QP_TOKEN EHCA_BMASK_IBM(32,63) -#define EQE_CQ_TOKEN EHCA_BMASK_IBM(32,63) - -#define NEQE_COMPLETION_EVENT EHCA_BMASK_IBM(1,1) -#define NEQE_EVENT_CODE EHCA_BMASK_IBM(2,7) -#define NEQE_PORT_NUMBER EHCA_BMASK_IBM(8,15) -#define NEQE_PORT_AVAILABILITY EHCA_BMASK_IBM(16,16) -#define NEQE_DISRUPTIVE EHCA_BMASK_IBM(16,16) - -#define ERROR_DATA_LENGTH EHCA_BMASK_IBM(52,63) -#define ERROR_DATA_TYPE EHCA_BMASK_IBM(0,7) +#define EQE_COMPLETION_EVENT EHCA_BMASK_IBM( 1, 1) +#define EQE_CQ_QP_NUMBER EHCA_BMASK_IBM( 8, 31) +#define EQE_EE_IDENTIFIER EHCA_BMASK_IBM( 2, 7) +#define EQE_CQ_NUMBER EHCA_BMASK_IBM( 8, 31) +#define EQE_QP_NUMBER EHCA_BMASK_IBM( 8, 31) +#define EQE_QP_TOKEN EHCA_BMASK_IBM(32, 63) +#define EQE_CQ_TOKEN EHCA_BMASK_IBM(32, 63) + +#define NEQE_COMPLETION_EVENT EHCA_BMASK_IBM( 1, 1) +#define NEQE_EVENT_CODE EHCA_BMASK_IBM( 2, 7) +#define NEQE_PORT_NUMBER EHCA_BMASK_IBM( 8, 15) +#define NEQE_PORT_AVAILABILITY EHCA_BMASK_IBM(16, 16) +#define NEQE_DISRUPTIVE EHCA_BMASK_IBM(16, 16) + +#define ERROR_DATA_LENGTH EHCA_BMASK_IBM(52, 63) +#define ERROR_DATA_TYPE EHCA_BMASK_IBM( 0, 7) static void queue_comp_task(struct ehca_cq *__cq); -static struct ehca_comp_pool* pool; +static struct ehca_comp_pool *pool; #ifdef CONFIG_HOTPLUG_CPU static struct notifier_block comp_pool_callback_nb; #endif @@ -85,8 +85,8 @@ static inline void comp_event_callback(struct ehca_cq *cq) return; } -static void print_error_data(struct ehca_shca * shca, void* data, - u64* rblock, int length) +static void print_error_data(struct ehca_shca *shca, void *data, + u64 *rblock, int length) { u64 type = EHCA_BMASK_GET(ERROR_DATA_TYPE, rblock[2]); u64 resource = rblock[1]; @@ -94,7 +94,7 @@ static void print_error_data(struct ehca_shca * shca, void* data, switch (type) { case 0x1: /* Queue Pair */ { - struct ehca_qp *qp = (struct ehca_qp*)data; + struct ehca_qp *qp = (struct ehca_qp *)data; /* only print error data if AER is set */ if (rblock[6] == 0) @@ -107,7 +107,7 @@ static void print_error_data(struct ehca_shca * shca, void* data, } case 0x4: /* Completion Queue */ { - struct ehca_cq *cq = (struct ehca_cq*)data; + struct ehca_cq *cq = (struct ehca_cq *)data; ehca_err(&shca->ib_device, "CQ 0x%x (resource=%lx) has errors.", @@ -572,7 +572,7 @@ void ehca_tasklet_eq(unsigned long data) ehca_process_eq((struct ehca_shca*)data, 1); } -static inline int find_next_online_cpu(struct ehca_comp_pool* pool) +static inline int find_next_online_cpu(struct ehca_comp_pool *pool) { int cpu; unsigned long flags; @@ -636,7 +636,7 @@ static void queue_comp_task(struct ehca_cq *__cq) __queue_comp_task(__cq, cct); } -static void run_comp_task(struct ehca_cpu_comp_task* cct) +static void run_comp_task(struct ehca_cpu_comp_task *cct) { struct ehca_cq *cq; unsigned long flags; @@ -666,12 +666,12 @@ static void run_comp_task(struct ehca_cpu_comp_task* cct) static int comp_task(void *__cct) { - struct ehca_cpu_comp_task* cct = __cct; + struct ehca_cpu_comp_task *cct = __cct; int cql_empty; DECLARE_WAITQUEUE(wait, current); set_current_state(TASK_INTERRUPTIBLE); - while(!kthread_should_stop()) { + while (!kthread_should_stop()) { add_wait_queue(&cct->wait_queue, &wait); spin_lock_irq(&cct->task_lock); @@ -745,7 +745,7 @@ static void take_over_work(struct ehca_comp_pool *pool, list_splice_init(&cct->cq_list, &list); - while(!list_empty(&list)) { + while (!list_empty(&list)) { cq = list_entry(cct->cq_list.next, struct ehca_cq, entry); list_del(&cq->entry); @@ -768,7 +768,7 @@ static int comp_pool_callback(struct notifier_block *nfb, case CPU_UP_PREPARE: case CPU_UP_PREPARE_FROZEN: ehca_gen_dbg("CPU: %x (CPU_PREPARE)", cpu); - if(!create_comp_task(pool, cpu)) { + if (!create_comp_task(pool, cpu)) { ehca_gen_err("Can't create comp_task for cpu: %x", cpu); return NOTIFY_BAD; } @@ -838,7 +838,7 @@ int ehca_create_comp_pool(void) #ifdef CONFIG_HOTPLUG_CPU comp_pool_callback_nb.notifier_call = comp_pool_callback; - comp_pool_callback_nb.priority =0; + comp_pool_callback_nb.priority = 0; register_cpu_notifier(&comp_pool_callback_nb); #endif diff --git a/drivers/infiniband/hw/ehca/ehca_iverbs.h b/drivers/infiniband/hw/ehca/ehca_iverbs.h index 77aeca6a2c2..dce503bb7d6 100644 --- a/drivers/infiniband/hw/ehca/ehca_iverbs.h +++ b/drivers/infiniband/hw/ehca/ehca_iverbs.h @@ -81,8 +81,9 @@ struct ib_mr *ehca_reg_phys_mr(struct ib_pd *pd, int num_phys_buf, int mr_access_flags, u64 *iova_start); -struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, u64 virt, - int mr_access_flags, struct ib_udata *udata); +struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, + u64 virt, int mr_access_flags, + struct ib_udata *udata); int ehca_rereg_phys_mr(struct ib_mr *mr, int mr_rereg_mask, @@ -192,7 +193,7 @@ void ehca_poll_eqs(unsigned long data); void *ehca_alloc_fw_ctrlblock(gfp_t flags); void ehca_free_fw_ctrlblock(void *ptr); #else -#define ehca_alloc_fw_ctrlblock(flags) ((void *) get_zeroed_page(flags)) +#define ehca_alloc_fw_ctrlblock(flags) ((void *)get_zeroed_page(flags)) #define ehca_free_fw_ctrlblock(ptr) free_page((unsigned long)(ptr)) #endif diff --git a/drivers/infiniband/hw/ehca/ehca_main.c b/drivers/infiniband/hw/ehca/ehca_main.c index 28ba2dd2421..36377c6db3d 100644 --- a/drivers/infiniband/hw/ehca/ehca_main.c +++ b/drivers/infiniband/hw/ehca/ehca_main.c @@ -107,7 +107,7 @@ static DEFINE_SPINLOCK(shca_list_lock); static struct timer_list poll_eqs_timer; #ifdef CONFIG_PPC_64K_PAGES -static struct kmem_cache *ctblk_cache = NULL; +static struct kmem_cache *ctblk_cache; void *ehca_alloc_fw_ctrlblock(gfp_t flags) { @@ -200,8 +200,8 @@ static void ehca_destroy_slab_caches(void) #endif } -#define EHCA_HCAAVER EHCA_BMASK_IBM(32,39) -#define EHCA_REVID EHCA_BMASK_IBM(40,63) +#define EHCA_HCAAVER EHCA_BMASK_IBM(32, 39) +#define EHCA_REVID EHCA_BMASK_IBM(40, 63) static struct cap_descr { u64 mask; @@ -263,22 +263,27 @@ int ehca_sense_attributes(struct ehca_shca *shca) ehca_gen_dbg(" ... hardware version=%x:%x", hcaaver, revid); - if ((hcaaver == 1) && (revid == 0)) - shca->hw_level = 0x11; - else if ((hcaaver == 1) && (revid == 1)) - shca->hw_level = 0x12; - else if ((hcaaver == 1) && (revid == 2)) - shca->hw_level = 0x13; - else if ((hcaaver == 2) && (revid == 0)) - shca->hw_level = 0x21; - else if ((hcaaver == 2) && (revid == 0x10)) - shca->hw_level = 0x22; - else { + if (hcaaver == 1) { + if (revid <= 3) + shca->hw_level = 0x10 | (revid + 1); + else + shca->hw_level = 0x14; + } else if (hcaaver == 2) { + if (revid == 0) + shca->hw_level = 0x21; + else if (revid == 0x10) + shca->hw_level = 0x22; + else if (revid == 0x20 || revid == 0x21) + shca->hw_level = 0x23; + } + + if (!shca->hw_level) { ehca_gen_warn("unknown hardware version" " - assuming default level"); shca->hw_level = 0x22; } - } + } else + shca->hw_level = ehca_hw_level; ehca_gen_dbg(" ... hardware level=%x", shca->hw_level); shca->sport[0].rate = IB_RATE_30_GBPS; @@ -290,7 +295,7 @@ int ehca_sense_attributes(struct ehca_shca *shca) if (EHCA_BMASK_GET(hca_cap_descr[i].mask, shca->hca_cap)) ehca_gen_dbg(" %s", hca_cap_descr[i].descr); - port = (struct hipz_query_port *) rblock; + port = (struct hipz_query_port *)rblock; h_ret = hipz_h_query_port(shca->ipz_hca_handle, 1, port); if (h_ret != H_SUCCESS) { ehca_gen_err("Cannot query port properties. h_ret=%lx", @@ -439,7 +444,7 @@ static int ehca_create_aqp1(struct ehca_shca *shca, u32 port) return -EPERM; } - ibcq = ib_create_cq(&shca->ib_device, NULL, NULL, (void*)(-1), 10, 0); + ibcq = ib_create_cq(&shca->ib_device, NULL, NULL, (void *)(-1), 10, 0); if (IS_ERR(ibcq)) { ehca_err(&shca->ib_device, "Cannot create AQP1 CQ."); return PTR_ERR(ibcq); @@ -666,7 +671,7 @@ static int __devinit ehca_probe(struct ibmebus_dev *dev, } /* create internal protection domain */ - ibpd = ehca_alloc_pd(&shca->ib_device, (void*)(-1), NULL); + ibpd = ehca_alloc_pd(&shca->ib_device, (void *)(-1), NULL); if (IS_ERR(ibpd)) { ehca_err(&shca->ib_device, "Cannot create internal PD."); ret = PTR_ERR(ibpd); @@ -863,18 +868,21 @@ int __init ehca_module_init(void) printk(KERN_INFO "eHCA Infiniband Device Driver " "(Rel.: SVNEHCA_0023)\n"); - if ((ret = ehca_create_comp_pool())) { + ret = ehca_create_comp_pool(); + if (ret) { ehca_gen_err("Cannot create comp pool."); return ret; } - if ((ret = ehca_create_slab_caches())) { + ret = ehca_create_slab_caches(); + if (ret) { ehca_gen_err("Cannot create SLAB caches"); ret = -ENOMEM; goto module_init1; } - if ((ret = ibmebus_register_driver(&ehca_driver))) { + ret = ibmebus_register_driver(&ehca_driver); + if (ret) { ehca_gen_err("Cannot register eHCA device driver"); ret = -EINVAL; goto module_init2; diff --git a/drivers/infiniband/hw/ehca/ehca_mrmw.c b/drivers/infiniband/hw/ehca/ehca_mrmw.c index add79bd44e3..6262c5462d5 100644 --- a/drivers/infiniband/hw/ehca/ehca_mrmw.c +++ b/drivers/infiniband/hw/ehca/ehca_mrmw.c @@ -48,6 +48,11 @@ #include "hcp_if.h" #include "hipz_hw.h" +#define NUM_CHUNKS(length, chunk_size) \ + (((length) + (chunk_size - 1)) / (chunk_size)) +/* max number of rpages (per hcall register_rpages) */ +#define MAX_RPAGES 512 + static struct kmem_cache *mr_cache; static struct kmem_cache *mw_cache; @@ -56,9 +61,9 @@ static struct ehca_mr *ehca_mr_new(void) struct ehca_mr *me; me = kmem_cache_zalloc(mr_cache, GFP_KERNEL); - if (me) { + if (me) spin_lock_init(&me->mrlock); - } else + else ehca_gen_err("alloc failed"); return me; @@ -74,9 +79,9 @@ static struct ehca_mw *ehca_mw_new(void) struct ehca_mw *me; me = kmem_cache_zalloc(mw_cache, GFP_KERNEL); - if (me) { + if (me) spin_lock_init(&me->mwlock); - } else + else ehca_gen_err("alloc failed"); return me; @@ -106,11 +111,12 @@ struct ib_mr *ehca_get_dma_mr(struct ib_pd *pd, int mr_access_flags) goto get_dma_mr_exit0; } - ret = ehca_reg_maxmr(shca, e_maxmr, (u64*)KERNELBASE, + ret = ehca_reg_maxmr(shca, e_maxmr, (u64 *)KERNELBASE, mr_access_flags, e_pd, &e_maxmr->ib.ib_mr.lkey, &e_maxmr->ib.ib_mr.rkey); if (ret) { + ehca_mr_delete(e_maxmr); ib_mr = ERR_PTR(ret); goto get_dma_mr_exit0; } @@ -144,9 +150,6 @@ struct ib_mr *ehca_reg_phys_mr(struct ib_pd *pd, struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); u64 size; - struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; - u32 num_pages_mr; - u32 num_pages_4k; /* 4k portion "pages" */ if ((num_phys_buf <= 0) || !phys_buf_array) { ehca_err(pd->device, "bad input values: num_phys_buf=%x " @@ -190,12 +193,6 @@ struct ib_mr *ehca_reg_phys_mr(struct ib_pd *pd, goto reg_phys_mr_exit0; } - /* determine number of MR pages */ - num_pages_mr = ((((u64)iova_start % PAGE_SIZE) + size + - PAGE_SIZE - 1) / PAGE_SIZE); - num_pages_4k = ((((u64)iova_start % EHCA_PAGESIZE) + size + - EHCA_PAGESIZE - 1) / EHCA_PAGESIZE); - /* register MR on HCA */ if (ehca_mr_is_maxmr(size, iova_start)) { e_mr->flags |= EHCA_MR_FLAG_MAXMR; @@ -207,13 +204,22 @@ struct ib_mr *ehca_reg_phys_mr(struct ib_pd *pd, goto reg_phys_mr_exit1; } } else { - pginfo.type = EHCA_MR_PGI_PHYS; - pginfo.num_pages = num_pages_mr; - pginfo.num_4k = num_pages_4k; - pginfo.num_phys_buf = num_phys_buf; - pginfo.phys_buf_array = phys_buf_array; - pginfo.next_4k = (((u64)iova_start & ~PAGE_MASK) / - EHCA_PAGESIZE); + struct ehca_mr_pginfo pginfo; + u32 num_kpages; + u32 num_hwpages; + + num_kpages = NUM_CHUNKS(((u64)iova_start % PAGE_SIZE) + size, + PAGE_SIZE); + num_hwpages = NUM_CHUNKS(((u64)iova_start % EHCA_PAGESIZE) + + size, EHCA_PAGESIZE); + memset(&pginfo, 0, sizeof(pginfo)); + pginfo.type = EHCA_MR_PGI_PHYS; + pginfo.num_kpages = num_kpages; + pginfo.num_hwpages = num_hwpages; + pginfo.u.phy.num_phys_buf = num_phys_buf; + pginfo.u.phy.phys_buf_array = phys_buf_array; + pginfo.next_hwpage = (((u64)iova_start & ~PAGE_MASK) / + EHCA_PAGESIZE); ret = ehca_reg_mr(shca, e_mr, iova_start, size, mr_access_flags, e_pd, &pginfo, &e_mr->ib.ib_mr.lkey, @@ -240,18 +246,19 @@ reg_phys_mr_exit0: /*----------------------------------------------------------------------*/ -struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, u64 virt, - int mr_access_flags, struct ib_udata *udata) +struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, + u64 virt, int mr_access_flags, + struct ib_udata *udata) { struct ib_mr *ib_mr; struct ehca_mr *e_mr; struct ehca_shca *shca = container_of(pd->device, struct ehca_shca, ib_device); struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); - struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; + struct ehca_mr_pginfo pginfo; int ret; - u32 num_pages_mr; - u32 num_pages_4k; /* 4k portion "pages" */ + u32 num_kpages; + u32 num_hwpages; if (!pd) { ehca_gen_err("bad pd=%p", pd); @@ -289,7 +296,7 @@ struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, u64 virt e_mr->umem = ib_umem_get(pd->uobject->context, start, length, mr_access_flags); if (IS_ERR(e_mr->umem)) { - ib_mr = (void *) e_mr->umem; + ib_mr = (void *)e_mr->umem; goto reg_user_mr_exit1; } @@ -301,23 +308,24 @@ struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, u64 virt } /* determine number of MR pages */ - num_pages_mr = (((virt % PAGE_SIZE) + length + PAGE_SIZE - 1) / - PAGE_SIZE); - num_pages_4k = (((virt % EHCA_PAGESIZE) + length + EHCA_PAGESIZE - 1) / - EHCA_PAGESIZE); + num_kpages = NUM_CHUNKS((virt % PAGE_SIZE) + length, PAGE_SIZE); + num_hwpages = NUM_CHUNKS((virt % EHCA_PAGESIZE) + length, + EHCA_PAGESIZE); /* register MR on HCA */ - pginfo.type = EHCA_MR_PGI_USER; - pginfo.num_pages = num_pages_mr; - pginfo.num_4k = num_pages_4k; - pginfo.region = e_mr->umem; - pginfo.next_4k = e_mr->umem->offset / EHCA_PAGESIZE; - pginfo.next_chunk = list_prepare_entry(pginfo.next_chunk, - (&e_mr->umem->chunk_list), - list); - - ret = ehca_reg_mr(shca, e_mr, (u64*) virt, length, mr_access_flags, e_pd, - &pginfo, &e_mr->ib.ib_mr.lkey, &e_mr->ib.ib_mr.rkey); + memset(&pginfo, 0, sizeof(pginfo)); + pginfo.type = EHCA_MR_PGI_USER; + pginfo.num_kpages = num_kpages; + pginfo.num_hwpages = num_hwpages; + pginfo.u.usr.region = e_mr->umem; + pginfo.next_hwpage = e_mr->umem->offset / EHCA_PAGESIZE; + pginfo.u.usr.next_chunk = list_prepare_entry(pginfo.u.usr.next_chunk, + (&e_mr->umem->chunk_list), + list); + + ret = ehca_reg_mr(shca, e_mr, (u64 *)virt, length, mr_access_flags, + e_pd, &pginfo, &e_mr->ib.ib_mr.lkey, + &e_mr->ib.ib_mr.rkey); if (ret) { ib_mr = ERR_PTR(ret); goto reg_user_mr_exit2; @@ -360,9 +368,9 @@ int ehca_rereg_phys_mr(struct ib_mr *mr, struct ehca_pd *new_pd; u32 tmp_lkey, tmp_rkey; unsigned long sl_flags; - u32 num_pages_mr = 0; - u32 num_pages_4k = 0; /* 4k portion "pages" */ - struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; + u32 num_kpages = 0; + u32 num_hwpages = 0; + struct ehca_mr_pginfo pginfo; u32 cur_pid = current->tgid; if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && @@ -414,7 +422,7 @@ int ehca_rereg_phys_mr(struct ib_mr *mr, goto rereg_phys_mr_exit0; } if (!phys_buf_array || num_phys_buf <= 0) { - ehca_err(mr->device, "bad input values: mr_rereg_mask=%x" + ehca_err(mr->device, "bad input values mr_rereg_mask=%x" " phys_buf_array=%p num_phys_buf=%x", mr_rereg_mask, phys_buf_array, num_phys_buf); ret = -EINVAL; @@ -438,10 +446,10 @@ int ehca_rereg_phys_mr(struct ib_mr *mr, /* set requested values dependent on rereg request */ spin_lock_irqsave(&e_mr->mrlock, sl_flags); - new_start = e_mr->start; /* new == old address */ - new_size = e_mr->size; /* new == old length */ - new_acl = e_mr->acl; /* new == old access control */ - new_pd = container_of(mr->pd,struct ehca_pd,ib_pd); /*new == old PD*/ + new_start = e_mr->start; + new_size = e_mr->size; + new_acl = e_mr->acl; + new_pd = container_of(mr->pd, struct ehca_pd, ib_pd); if (mr_rereg_mask & IB_MR_REREG_TRANS) { new_start = iova_start; /* change address */ @@ -458,17 +466,18 @@ int ehca_rereg_phys_mr(struct ib_mr *mr, ret = -EINVAL; goto rereg_phys_mr_exit1; } - num_pages_mr = ((((u64)new_start % PAGE_SIZE) + new_size + - PAGE_SIZE - 1) / PAGE_SIZE); - num_pages_4k = ((((u64)new_start % EHCA_PAGESIZE) + new_size + - EHCA_PAGESIZE - 1) / EHCA_PAGESIZE); - pginfo.type = EHCA_MR_PGI_PHYS; - pginfo.num_pages = num_pages_mr; - pginfo.num_4k = num_pages_4k; - pginfo.num_phys_buf = num_phys_buf; - pginfo.phys_buf_array = phys_buf_array; - pginfo.next_4k = (((u64)iova_start & ~PAGE_MASK) / - EHCA_PAGESIZE); + num_kpages = NUM_CHUNKS(((u64)new_start % PAGE_SIZE) + + new_size, PAGE_SIZE); + num_hwpages = NUM_CHUNKS(((u64)new_start % EHCA_PAGESIZE) + + new_size, EHCA_PAGESIZE); + memset(&pginfo, 0, sizeof(pginfo)); + pginfo.type = EHCA_MR_PGI_PHYS; + pginfo.num_kpages = num_kpages; + pginfo.num_hwpages = num_hwpages; + pginfo.u.phy.num_phys_buf = num_phys_buf; + pginfo.u.phy.phys_buf_array = phys_buf_array; + pginfo.next_hwpage = (((u64)iova_start & ~PAGE_MASK) / + EHCA_PAGESIZE); } if (mr_rereg_mask & IB_MR_REREG_ACCESS) new_acl = mr_access_flags; @@ -510,7 +519,7 @@ int ehca_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr) struct ehca_pd *my_pd = container_of(mr->pd, struct ehca_pd, ib_pd); u32 cur_pid = current->tgid; unsigned long sl_flags; - struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + struct ehca_mr_hipzout_parms hipzout; if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && (my_pd->ownpid != cur_pid)) { @@ -536,14 +545,14 @@ int ehca_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr) "hca_hndl=%lx mr_hndl=%lx lkey=%x", h_ret, mr, shca->ipz_hca_handle.handle, e_mr->ipz_mr_handle.handle, mr->lkey); - ret = ehca_mrmw_map_hrc_query_mr(h_ret); + ret = ehca2ib_return_code(h_ret); goto query_mr_exit1; } - mr_attr->pd = mr->pd; + mr_attr->pd = mr->pd; mr_attr->device_virt_addr = hipzout.vaddr; - mr_attr->size = hipzout.len; - mr_attr->lkey = hipzout.lkey; - mr_attr->rkey = hipzout.rkey; + mr_attr->size = hipzout.len; + mr_attr->lkey = hipzout.lkey; + mr_attr->rkey = hipzout.rkey; ehca_mrmw_reverse_map_acl(&hipzout.acl, &mr_attr->mr_access_flags); query_mr_exit1: @@ -596,7 +605,7 @@ int ehca_dereg_mr(struct ib_mr *mr) "e_mr=%p hca_hndl=%lx mr_hndl=%lx mr->lkey=%x", h_ret, shca, e_mr, shca->ipz_hca_handle.handle, e_mr->ipz_mr_handle.handle, mr->lkey); - ret = ehca_mrmw_map_hrc_free_mr(h_ret); + ret = ehca2ib_return_code(h_ret); goto dereg_mr_exit0; } @@ -622,7 +631,7 @@ struct ib_mw *ehca_alloc_mw(struct ib_pd *pd) struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); struct ehca_shca *shca = container_of(pd->device, struct ehca_shca, ib_device); - struct ehca_mw_hipzout_parms hipzout = {{0},0}; + struct ehca_mw_hipzout_parms hipzout; e_mw = ehca_mw_new(); if (!e_mw) { @@ -636,7 +645,7 @@ struct ib_mw *ehca_alloc_mw(struct ib_pd *pd) ehca_err(pd->device, "hipz_mw_allocate failed, h_ret=%lx " "shca=%p hca_hndl=%lx mw=%p", h_ret, shca, shca->ipz_hca_handle.handle, e_mw); - ib_mw = ERR_PTR(ehca_mrmw_map_hrc_alloc(h_ret)); + ib_mw = ERR_PTR(ehca2ib_return_code(h_ret)); goto alloc_mw_exit1; } /* successful MW allocation */ @@ -679,7 +688,7 @@ int ehca_dealloc_mw(struct ib_mw *mw) "mw=%p rkey=%x hca_hndl=%lx mw_hndl=%lx", h_ret, shca, mw, mw->rkey, shca->ipz_hca_handle.handle, e_mw->ipz_mw_handle.handle); - return ehca_mrmw_map_hrc_free_mw(h_ret); + return ehca2ib_return_code(h_ret); } /* successful deallocation */ ehca_mw_delete(e_mw); @@ -699,7 +708,7 @@ struct ib_fmr *ehca_alloc_fmr(struct ib_pd *pd, struct ehca_mr *e_fmr; int ret; u32 tmp_lkey, tmp_rkey; - struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; + struct ehca_mr_pginfo pginfo; /* check other parameters */ if (((mr_access_flags & IB_ACCESS_REMOTE_WRITE) && @@ -745,6 +754,7 @@ struct ib_fmr *ehca_alloc_fmr(struct ib_pd *pd, e_fmr->flags |= EHCA_MR_FLAG_FMR; /* register MR on HCA */ + memset(&pginfo, 0, sizeof(pginfo)); ret = ehca_reg_mr(shca, e_fmr, NULL, fmr_attr->max_pages * (1 << fmr_attr->page_shift), mr_access_flags, e_pd, &pginfo, @@ -783,7 +793,7 @@ int ehca_map_phys_fmr(struct ib_fmr *fmr, container_of(fmr->device, struct ehca_shca, ib_device); struct ehca_mr *e_fmr = container_of(fmr, struct ehca_mr, ib.ib_fmr); struct ehca_pd *e_pd = container_of(fmr->pd, struct ehca_pd, ib_pd); - struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; + struct ehca_mr_pginfo pginfo; u32 tmp_lkey, tmp_rkey; if (!(e_fmr->flags & EHCA_MR_FLAG_FMR)) { @@ -809,14 +819,16 @@ int ehca_map_phys_fmr(struct ib_fmr *fmr, fmr, e_fmr->fmr_map_cnt, e_fmr->fmr_max_maps); } - pginfo.type = EHCA_MR_PGI_FMR; - pginfo.num_pages = list_len; - pginfo.num_4k = list_len * (e_fmr->fmr_page_size / EHCA_PAGESIZE); - pginfo.page_list = page_list; - pginfo.next_4k = ((iova & (e_fmr->fmr_page_size-1)) / - EHCA_PAGESIZE); + memset(&pginfo, 0, sizeof(pginfo)); + pginfo.type = EHCA_MR_PGI_FMR; + pginfo.num_kpages = list_len; + pginfo.num_hwpages = list_len * (e_fmr->fmr_page_size / EHCA_PAGESIZE); + pginfo.u.fmr.page_list = page_list; + pginfo.next_hwpage = ((iova & (e_fmr->fmr_page_size-1)) / + EHCA_PAGESIZE); + pginfo.u.fmr.fmr_pgsize = e_fmr->fmr_page_size; - ret = ehca_rereg_mr(shca, e_fmr, (u64*)iova, + ret = ehca_rereg_mr(shca, e_fmr, (u64 *)iova, list_len * e_fmr->fmr_page_size, e_fmr->acl, e_pd, &pginfo, &tmp_lkey, &tmp_rkey); if (ret) @@ -831,8 +843,7 @@ int ehca_map_phys_fmr(struct ib_fmr *fmr, map_phys_fmr_exit0: if (ret) ehca_err(fmr->device, "ret=%x fmr=%p page_list=%p list_len=%x " - "iova=%lx", - ret, fmr, page_list, list_len, iova); + "iova=%lx", ret, fmr, page_list, list_len, iova); return ret; } /* end ehca_map_phys_fmr() */ @@ -922,7 +933,7 @@ int ehca_dealloc_fmr(struct ib_fmr *fmr) "hca_hndl=%lx fmr_hndl=%lx fmr->lkey=%x", h_ret, e_fmr, shca->ipz_hca_handle.handle, e_fmr->ipz_mr_handle.handle, fmr->lkey); - ret = ehca_mrmw_map_hrc_free_mr(h_ret); + ret = ehca2ib_return_code(h_ret); goto free_fmr_exit0; } /* successful deregistration */ @@ -950,12 +961,12 @@ int ehca_reg_mr(struct ehca_shca *shca, int ret; u64 h_ret; u32 hipz_acl; - struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + struct ehca_mr_hipzout_parms hipzout; ehca_mrmw_map_acl(acl, &hipz_acl); ehca_mrmw_set_pgsize_hipz_acl(&hipz_acl); if (ehca_use_hp_mr == 1) - hipz_acl |= 0x00000001; + hipz_acl |= 0x00000001; h_ret = hipz_h_alloc_resource_mr(shca->ipz_hca_handle, e_mr, (u64)iova_start, size, hipz_acl, @@ -963,7 +974,7 @@ int ehca_reg_mr(struct ehca_shca *shca, if (h_ret != H_SUCCESS) { ehca_err(&shca->ib_device, "hipz_alloc_mr failed, h_ret=%lx " "hca_hndl=%lx", h_ret, shca->ipz_hca_handle.handle); - ret = ehca_mrmw_map_hrc_alloc(h_ret); + ret = ehca2ib_return_code(h_ret); goto ehca_reg_mr_exit0; } @@ -974,11 +985,11 @@ int ehca_reg_mr(struct ehca_shca *shca, goto ehca_reg_mr_exit1; /* successful registration */ - e_mr->num_pages = pginfo->num_pages; - e_mr->num_4k = pginfo->num_4k; - e_mr->start = iova_start; - e_mr->size = size; - e_mr->acl = acl; + e_mr->num_kpages = pginfo->num_kpages; + e_mr->num_hwpages = pginfo->num_hwpages; + e_mr->start = iova_start; + e_mr->size = size; + e_mr->acl = acl; *lkey = hipzout.lkey; *rkey = hipzout.rkey; return 0; @@ -988,10 +999,10 @@ ehca_reg_mr_exit1: if (h_ret != H_SUCCESS) { ehca_err(&shca->ib_device, "h_ret=%lx shca=%p e_mr=%p " "iova_start=%p size=%lx acl=%x e_pd=%p lkey=%x " - "pginfo=%p num_pages=%lx num_4k=%lx ret=%x", + "pginfo=%p num_kpages=%lx num_hwpages=%lx ret=%x", h_ret, shca, e_mr, iova_start, size, acl, e_pd, - hipzout.lkey, pginfo, pginfo->num_pages, - pginfo->num_4k, ret); + hipzout.lkey, pginfo, pginfo->num_kpages, + pginfo->num_hwpages, ret); ehca_err(&shca->ib_device, "internal error in ehca_reg_mr, " "not recoverable"); } @@ -999,9 +1010,9 @@ ehca_reg_mr_exit0: if (ret) ehca_err(&shca->ib_device, "ret=%x shca=%p e_mr=%p " "iova_start=%p size=%lx acl=%x e_pd=%p pginfo=%p " - "num_pages=%lx num_4k=%lx", + "num_kpages=%lx num_hwpages=%lx", ret, shca, e_mr, iova_start, size, acl, e_pd, pginfo, - pginfo->num_pages, pginfo->num_4k); + pginfo->num_kpages, pginfo->num_hwpages); return ret; } /* end ehca_reg_mr() */ @@ -1026,24 +1037,24 @@ int ehca_reg_mr_rpages(struct ehca_shca *shca, } /* max 512 pages per shot */ - for (i = 0; i < ((pginfo->num_4k + 512 - 1) / 512); i++) { + for (i = 0; i < NUM_CHUNKS(pginfo->num_hwpages, MAX_RPAGES); i++) { - if (i == ((pginfo->num_4k + 512 - 1) / 512) - 1) { - rnum = pginfo->num_4k % 512; /* last shot */ + if (i == NUM_CHUNKS(pginfo->num_hwpages, MAX_RPAGES) - 1) { + rnum = pginfo->num_hwpages % MAX_RPAGES; /* last shot */ if (rnum == 0) - rnum = 512; /* last shot is full */ + rnum = MAX_RPAGES; /* last shot is full */ } else - rnum = 512; + rnum = MAX_RPAGES; - if (rnum > 1) { - ret = ehca_set_pagebuf(e_mr, pginfo, rnum, kpage); - if (ret) { - ehca_err(&shca->ib_device, "ehca_set_pagebuf " + ret = ehca_set_pagebuf(pginfo, rnum, kpage); + if (ret) { + ehca_err(&shca->ib_device, "ehca_set_pagebuf " "bad rc, ret=%x rnum=%x kpage=%p", ret, rnum, kpage); - ret = -EFAULT; - goto ehca_reg_mr_rpages_exit1; - } + goto ehca_reg_mr_rpages_exit1; + } + + if (rnum > 1) { rpage = virt_to_abs(kpage); if (!rpage) { ehca_err(&shca->ib_device, "kpage=%p i=%x", @@ -1051,21 +1062,14 @@ int ehca_reg_mr_rpages(struct ehca_shca *shca, ret = -EFAULT; goto ehca_reg_mr_rpages_exit1; } - } else { /* rnum==1 */ - ret = ehca_set_pagebuf_1(e_mr, pginfo, &rpage); - if (ret) { - ehca_err(&shca->ib_device, "ehca_set_pagebuf_1 " - "bad rc, ret=%x i=%x", ret, i); - ret = -EFAULT; - goto ehca_reg_mr_rpages_exit1; - } - } + } else + rpage = *kpage; h_ret = hipz_h_register_rpage_mr(shca->ipz_hca_handle, e_mr, 0, /* pagesize 4k */ 0, rpage, rnum); - if (i == ((pginfo->num_4k + 512 - 1) / 512) - 1) { + if (i == NUM_CHUNKS(pginfo->num_hwpages, MAX_RPAGES) - 1) { /* * check for 'registration complete'==H_SUCCESS * and for 'page registered'==H_PAGE_REGISTERED @@ -1078,7 +1082,7 @@ int ehca_reg_mr_rpages(struct ehca_shca *shca, shca->ipz_hca_handle.handle, e_mr->ipz_mr_handle.handle, e_mr->ib.ib_mr.lkey); - ret = ehca_mrmw_map_hrc_rrpg_last(h_ret); + ret = ehca2ib_return_code(h_ret); break; } else ret = 0; @@ -1089,7 +1093,7 @@ int ehca_reg_mr_rpages(struct ehca_shca *shca, e_mr->ib.ib_mr.lkey, shca->ipz_hca_handle.handle, e_mr->ipz_mr_handle.handle); - ret = ehca_mrmw_map_hrc_rrpg_notlast(h_ret); + ret = ehca2ib_return_code(h_ret); break; } else ret = 0; @@ -1101,8 +1105,8 @@ ehca_reg_mr_rpages_exit1: ehca_reg_mr_rpages_exit0: if (ret) ehca_err(&shca->ib_device, "ret=%x shca=%p e_mr=%p pginfo=%p " - "num_pages=%lx num_4k=%lx", ret, shca, e_mr, pginfo, - pginfo->num_pages, pginfo->num_4k); + "num_kpages=%lx num_hwpages=%lx", ret, shca, e_mr, + pginfo, pginfo->num_kpages, pginfo->num_hwpages); return ret; } /* end ehca_reg_mr_rpages() */ @@ -1124,7 +1128,7 @@ inline int ehca_rereg_mr_rereg1(struct ehca_shca *shca, u64 *kpage; u64 rpage; struct ehca_mr_pginfo pginfo_save; - struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + struct ehca_mr_hipzout_parms hipzout; ehca_mrmw_map_acl(acl, &hipz_acl); ehca_mrmw_set_pgsize_hipz_acl(&hipz_acl); @@ -1137,12 +1141,12 @@ inline int ehca_rereg_mr_rereg1(struct ehca_shca *shca, } pginfo_save = *pginfo; - ret = ehca_set_pagebuf(e_mr, pginfo, pginfo->num_4k, kpage); + ret = ehca_set_pagebuf(pginfo, pginfo->num_hwpages, kpage); if (ret) { ehca_err(&shca->ib_device, "set pagebuf failed, e_mr=%p " - "pginfo=%p type=%x num_pages=%lx num_4k=%lx kpage=%p", - e_mr, pginfo, pginfo->type, pginfo->num_pages, - pginfo->num_4k,kpage); + "pginfo=%p type=%x num_kpages=%lx num_hwpages=%lx " + "kpage=%p", e_mr, pginfo, pginfo->type, + pginfo->num_kpages, pginfo->num_hwpages, kpage); goto ehca_rereg_mr_rereg1_exit1; } rpage = virt_to_abs(kpage); @@ -1164,7 +1168,7 @@ inline int ehca_rereg_mr_rereg1(struct ehca_shca *shca, "(Rereg1), h_ret=%lx e_mr=%p", h_ret, e_mr); *pginfo = pginfo_save; ret = -EAGAIN; - } else if ((u64*)hipzout.vaddr != iova_start) { + } else if ((u64 *)hipzout.vaddr != iova_start) { ehca_err(&shca->ib_device, "PHYP changed iova_start in " "rereg_pmr, iova_start=%p iova_start_out=%lx e_mr=%p " "mr_handle=%lx lkey=%x lkey_out=%x", iova_start, @@ -1176,11 +1180,11 @@ inline int ehca_rereg_mr_rereg1(struct ehca_shca *shca, * successful reregistration * note: start and start_out are identical for eServer HCAs */ - e_mr->num_pages = pginfo->num_pages; - e_mr->num_4k = pginfo->num_4k; - e_mr->start = iova_start; - e_mr->size = size; - e_mr->acl = acl; + e_mr->num_kpages = pginfo->num_kpages; + e_mr->num_hwpages = pginfo->num_hwpages; + e_mr->start = iova_start; + e_mr->size = size; + e_mr->acl = acl; *lkey = hipzout.lkey; *rkey = hipzout.rkey; } @@ -1190,9 +1194,9 @@ ehca_rereg_mr_rereg1_exit1: ehca_rereg_mr_rereg1_exit0: if ( ret && (ret != -EAGAIN) ) ehca_err(&shca->ib_device, "ret=%x lkey=%x rkey=%x " - "pginfo=%p num_pages=%lx num_4k=%lx", - ret, *lkey, *rkey, pginfo, pginfo->num_pages, - pginfo->num_4k); + "pginfo=%p num_kpages=%lx num_hwpages=%lx", + ret, *lkey, *rkey, pginfo, pginfo->num_kpages, + pginfo->num_hwpages); return ret; } /* end ehca_rereg_mr_rereg1() */ @@ -1214,10 +1218,12 @@ int ehca_rereg_mr(struct ehca_shca *shca, int rereg_3_hcall = 0; /* 1: use 3 hipz calls for reregistration */ /* first determine reregistration hCall(s) */ - if ((pginfo->num_4k > 512) || (e_mr->num_4k > 512) || - (pginfo->num_4k > e_mr->num_4k)) { - ehca_dbg(&shca->ib_device, "Rereg3 case, pginfo->num_4k=%lx " - "e_mr->num_4k=%x", pginfo->num_4k, e_mr->num_4k); + if ((pginfo->num_hwpages > MAX_RPAGES) || + (e_mr->num_hwpages > MAX_RPAGES) || + (pginfo->num_hwpages > e_mr->num_hwpages)) { + ehca_dbg(&shca->ib_device, "Rereg3 case, " + "pginfo->num_hwpages=%lx e_mr->num_hwpages=%x", + pginfo->num_hwpages, e_mr->num_hwpages); rereg_1_hcall = 0; rereg_3_hcall = 1; } @@ -1253,7 +1259,7 @@ int ehca_rereg_mr(struct ehca_shca *shca, h_ret, e_mr, shca->ipz_hca_handle.handle, e_mr->ipz_mr_handle.handle, e_mr->ib.ib_mr.lkey); - ret = ehca_mrmw_map_hrc_free_mr(h_ret); + ret = ehca2ib_return_code(h_ret); goto ehca_rereg_mr_exit0; } /* clean ehca_mr_t, without changing struct ib_mr and lock */ @@ -1281,9 +1287,9 @@ ehca_rereg_mr_exit0: if (ret) ehca_err(&shca->ib_device, "ret=%x shca=%p e_mr=%p " "iova_start=%p size=%lx acl=%x e_pd=%p pginfo=%p " - "num_pages=%lx lkey=%x rkey=%x rereg_1_hcall=%x " + "num_kpages=%lx lkey=%x rkey=%x rereg_1_hcall=%x " "rereg_3_hcall=%x", ret, shca, e_mr, iova_start, size, - acl, e_pd, pginfo, pginfo->num_pages, *lkey, *rkey, + acl, e_pd, pginfo, pginfo->num_kpages, *lkey, *rkey, rereg_1_hcall, rereg_3_hcall); return ret; } /* end ehca_rereg_mr() */ @@ -1295,97 +1301,86 @@ int ehca_unmap_one_fmr(struct ehca_shca *shca, { int ret = 0; u64 h_ret; - int rereg_1_hcall = 1; /* 1: use hipz_mr_reregister directly */ - int rereg_3_hcall = 0; /* 1: use 3 hipz calls for unmapping */ struct ehca_pd *e_pd = container_of(e_fmr->ib.ib_fmr.pd, struct ehca_pd, ib_pd); struct ehca_mr save_fmr; u32 tmp_lkey, tmp_rkey; - struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; - struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + struct ehca_mr_pginfo pginfo; + struct ehca_mr_hipzout_parms hipzout; + struct ehca_mr save_mr; - /* first check if reregistration hCall can be used for unmap */ - if (e_fmr->fmr_max_pages > 512) { - rereg_1_hcall = 0; - rereg_3_hcall = 1; - } - - if (rereg_1_hcall) { + if (e_fmr->fmr_max_pages <= MAX_RPAGES) { /* * note: after using rereg hcall with len=0, * rereg hcall must be used again for registering pages */ h_ret = hipz_h_reregister_pmr(shca->ipz_hca_handle, e_fmr, 0, 0, 0, e_pd->fw_pd, 0, &hipzout); - if (h_ret != H_SUCCESS) { - /* - * should not happen, because length checked above, - * FMRs are not shared and no MW bound to FMRs - */ - ehca_err(&shca->ib_device, "hipz_reregister_pmr failed " - "(Rereg1), h_ret=%lx e_fmr=%p hca_hndl=%lx " - "mr_hndl=%lx lkey=%x lkey_out=%x", - h_ret, e_fmr, shca->ipz_hca_handle.handle, - e_fmr->ipz_mr_handle.handle, - e_fmr->ib.ib_fmr.lkey, hipzout.lkey); - rereg_3_hcall = 1; - } else { + if (h_ret == H_SUCCESS) { /* successful reregistration */ e_fmr->start = NULL; e_fmr->size = 0; tmp_lkey = hipzout.lkey; tmp_rkey = hipzout.rkey; + return 0; } + /* + * should not happen, because length checked above, + * FMRs are not shared and no MW bound to FMRs + */ + ehca_err(&shca->ib_device, "hipz_reregister_pmr failed " + "(Rereg1), h_ret=%lx e_fmr=%p hca_hndl=%lx " + "mr_hndl=%lx lkey=%x lkey_out=%x", + h_ret, e_fmr, shca->ipz_hca_handle.handle, + e_fmr->ipz_mr_handle.handle, + e_fmr->ib.ib_fmr.lkey, hipzout.lkey); + /* try free and rereg */ } - if (rereg_3_hcall) { - struct ehca_mr save_mr; - - /* first free old FMR */ - h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_fmr); - if (h_ret != H_SUCCESS) { - ehca_err(&shca->ib_device, "hipz_free_mr failed, " - "h_ret=%lx e_fmr=%p hca_hndl=%lx mr_hndl=%lx " - "lkey=%x", - h_ret, e_fmr, shca->ipz_hca_handle.handle, - e_fmr->ipz_mr_handle.handle, - e_fmr->ib.ib_fmr.lkey); - ret = ehca_mrmw_map_hrc_free_mr(h_ret); - goto ehca_unmap_one_fmr_exit0; - } - /* clean ehca_mr_t, without changing lock */ - save_fmr = *e_fmr; - ehca_mr_deletenew(e_fmr); - - /* set some MR values */ - e_fmr->flags = save_fmr.flags; - e_fmr->fmr_page_size = save_fmr.fmr_page_size; - e_fmr->fmr_max_pages = save_fmr.fmr_max_pages; - e_fmr->fmr_max_maps = save_fmr.fmr_max_maps; - e_fmr->fmr_map_cnt = save_fmr.fmr_map_cnt; - e_fmr->acl = save_fmr.acl; - - pginfo.type = EHCA_MR_PGI_FMR; - pginfo.num_pages = 0; - pginfo.num_4k = 0; - ret = ehca_reg_mr(shca, e_fmr, NULL, - (e_fmr->fmr_max_pages * e_fmr->fmr_page_size), - e_fmr->acl, e_pd, &pginfo, &tmp_lkey, - &tmp_rkey); - if (ret) { - u32 offset = (u64)(&e_fmr->flags) - (u64)e_fmr; - memcpy(&e_fmr->flags, &(save_mr.flags), - sizeof(struct ehca_mr) - offset); - goto ehca_unmap_one_fmr_exit0; - } + /* first free old FMR */ + h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_fmr); + if (h_ret != H_SUCCESS) { + ehca_err(&shca->ib_device, "hipz_free_mr failed, " + "h_ret=%lx e_fmr=%p hca_hndl=%lx mr_hndl=%lx " + "lkey=%x", + h_ret, e_fmr, shca->ipz_hca_handle.handle, + e_fmr->ipz_mr_handle.handle, + e_fmr->ib.ib_fmr.lkey); + ret = ehca2ib_return_code(h_ret); + goto ehca_unmap_one_fmr_exit0; + } + /* clean ehca_mr_t, without changing lock */ + save_fmr = *e_fmr; + ehca_mr_deletenew(e_fmr); + + /* set some MR values */ + e_fmr->flags = save_fmr.flags; + e_fmr->fmr_page_size = save_fmr.fmr_page_size; + e_fmr->fmr_max_pages = save_fmr.fmr_max_pages; + e_fmr->fmr_max_maps = save_fmr.fmr_max_maps; + e_fmr->fmr_map_cnt = save_fmr.fmr_map_cnt; + e_fmr->acl = save_fmr.acl; + + memset(&pginfo, 0, sizeof(pginfo)); + pginfo.type = EHCA_MR_PGI_FMR; + pginfo.num_kpages = 0; + pginfo.num_hwpages = 0; + ret = ehca_reg_mr(shca, e_fmr, NULL, + (e_fmr->fmr_max_pages * e_fmr->fmr_page_size), + e_fmr->acl, e_pd, &pginfo, &tmp_lkey, + &tmp_rkey); + if (ret) { + u32 offset = (u64)(&e_fmr->flags) - (u64)e_fmr; + memcpy(&e_fmr->flags, &(save_mr.flags), + sizeof(struct ehca_mr) - offset); + goto ehca_unmap_one_fmr_exit0; } ehca_unmap_one_fmr_exit0: if (ret) ehca_err(&shca->ib_device, "ret=%x tmp_lkey=%x tmp_rkey=%x " - "fmr_max_pages=%x rereg_1_hcall=%x rereg_3_hcall=%x", - ret, tmp_lkey, tmp_rkey, e_fmr->fmr_max_pages, - rereg_1_hcall, rereg_3_hcall); + "fmr_max_pages=%x", + ret, tmp_lkey, tmp_rkey, e_fmr->fmr_max_pages); return ret; } /* end ehca_unmap_one_fmr() */ @@ -1403,7 +1398,7 @@ int ehca_reg_smr(struct ehca_shca *shca, int ret = 0; u64 h_ret; u32 hipz_acl; - struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + struct ehca_mr_hipzout_parms hipzout; ehca_mrmw_map_acl(acl, &hipz_acl); ehca_mrmw_set_pgsize_hipz_acl(&hipz_acl); @@ -1419,15 +1414,15 @@ int ehca_reg_smr(struct ehca_shca *shca, shca->ipz_hca_handle.handle, e_origmr->ipz_mr_handle.handle, e_origmr->ib.ib_mr.lkey); - ret = ehca_mrmw_map_hrc_reg_smr(h_ret); + ret = ehca2ib_return_code(h_ret); goto ehca_reg_smr_exit0; } /* successful registration */ - e_newmr->num_pages = e_origmr->num_pages; - e_newmr->num_4k = e_origmr->num_4k; - e_newmr->start = iova_start; - e_newmr->size = e_origmr->size; - e_newmr->acl = acl; + e_newmr->num_kpages = e_origmr->num_kpages; + e_newmr->num_hwpages = e_origmr->num_hwpages; + e_newmr->start = iova_start; + e_newmr->size = e_origmr->size; + e_newmr->acl = acl; e_newmr->ipz_mr_handle = hipzout.handle; *lkey = hipzout.lkey; *rkey = hipzout.rkey; @@ -1453,10 +1448,10 @@ int ehca_reg_internal_maxmr( struct ehca_mr *e_mr; u64 *iova_start; u64 size_maxmr; - struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; + struct ehca_mr_pginfo pginfo; struct ib_phys_buf ib_pbuf; - u32 num_pages_mr; - u32 num_pages_4k; /* 4k portion "pages" */ + u32 num_kpages; + u32 num_hwpages; e_mr = ehca_mr_new(); if (!e_mr) { @@ -1468,28 +1463,29 @@ int ehca_reg_internal_maxmr( /* register internal max-MR on HCA */ size_maxmr = (u64)high_memory - PAGE_OFFSET; - iova_start = (u64*)KERNELBASE; + iova_start = (u64 *)KERNELBASE; ib_pbuf.addr = 0; ib_pbuf.size = size_maxmr; - num_pages_mr = ((((u64)iova_start % PAGE_SIZE) + size_maxmr + - PAGE_SIZE - 1) / PAGE_SIZE); - num_pages_4k = ((((u64)iova_start % EHCA_PAGESIZE) + size_maxmr + - EHCA_PAGESIZE - 1) / EHCA_PAGESIZE); - - pginfo.type = EHCA_MR_PGI_PHYS; - pginfo.num_pages = num_pages_mr; - pginfo.num_4k = num_pages_4k; - pginfo.num_phys_buf = 1; - pginfo.phys_buf_array = &ib_pbuf; + num_kpages = NUM_CHUNKS(((u64)iova_start % PAGE_SIZE) + size_maxmr, + PAGE_SIZE); + num_hwpages = NUM_CHUNKS(((u64)iova_start % EHCA_PAGESIZE) + size_maxmr, + EHCA_PAGESIZE); + + memset(&pginfo, 0, sizeof(pginfo)); + pginfo.type = EHCA_MR_PGI_PHYS; + pginfo.num_kpages = num_kpages; + pginfo.num_hwpages = num_hwpages; + pginfo.u.phy.num_phys_buf = 1; + pginfo.u.phy.phys_buf_array = &ib_pbuf; ret = ehca_reg_mr(shca, e_mr, iova_start, size_maxmr, 0, e_pd, &pginfo, &e_mr->ib.ib_mr.lkey, &e_mr->ib.ib_mr.rkey); if (ret) { ehca_err(&shca->ib_device, "reg of internal max MR failed, " - "e_mr=%p iova_start=%p size_maxmr=%lx num_pages_mr=%x " - "num_pages_4k=%x", e_mr, iova_start, size_maxmr, - num_pages_mr, num_pages_4k); + "e_mr=%p iova_start=%p size_maxmr=%lx num_kpages=%x " + "num_hwpages=%x", e_mr, iova_start, size_maxmr, + num_kpages, num_hwpages); goto ehca_reg_internal_maxmr_exit1; } @@ -1524,7 +1520,7 @@ int ehca_reg_maxmr(struct ehca_shca *shca, u64 h_ret; struct ehca_mr *e_origmr = shca->maxmr; u32 hipz_acl; - struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + struct ehca_mr_hipzout_parms hipzout; ehca_mrmw_map_acl(acl, &hipz_acl); ehca_mrmw_set_pgsize_hipz_acl(&hipz_acl); @@ -1538,14 +1534,14 @@ int ehca_reg_maxmr(struct ehca_shca *shca, h_ret, e_origmr, shca->ipz_hca_handle.handle, e_origmr->ipz_mr_handle.handle, e_origmr->ib.ib_mr.lkey); - return ehca_mrmw_map_hrc_reg_smr(h_ret); + return ehca2ib_return_code(h_ret); } /* successful registration */ - e_newmr->num_pages = e_origmr->num_pages; - e_newmr->num_4k = e_origmr->num_4k; - e_newmr->start = iova_start; - e_newmr->size = e_origmr->size; - e_newmr->acl = acl; + e_newmr->num_kpages = e_origmr->num_kpages; + e_newmr->num_hwpages = e_origmr->num_hwpages; + e_newmr->start = iova_start; + e_newmr->size = e_origmr->size; + e_newmr->acl = acl; e_newmr->ipz_mr_handle = hipzout.handle; *lkey = hipzout.lkey; *rkey = hipzout.rkey; @@ -1677,299 +1673,187 @@ int ehca_fmr_check_page_list(struct ehca_mr *e_fmr, /*----------------------------------------------------------------------*/ -/* setup page buffer from page info */ -int ehca_set_pagebuf(struct ehca_mr *e_mr, - struct ehca_mr_pginfo *pginfo, - u32 number, - u64 *kpage) +/* PAGE_SIZE >= pginfo->hwpage_size */ +static int ehca_set_pagebuf_user1(struct ehca_mr_pginfo *pginfo, + u32 number, + u64 *kpage) { int ret = 0; struct ib_umem_chunk *prev_chunk; struct ib_umem_chunk *chunk; - struct ib_phys_buf *pbuf; - u64 *fmrlist; - u64 num4k, pgaddr, offs4k; + u64 pgaddr; u32 i = 0; u32 j = 0; - if (pginfo->type == EHCA_MR_PGI_PHYS) { - /* loop over desired phys_buf_array entries */ - while (i < number) { - pbuf = pginfo->phys_buf_array + pginfo->next_buf; - num4k = ((pbuf->addr % EHCA_PAGESIZE) + pbuf->size + - EHCA_PAGESIZE - 1) / EHCA_PAGESIZE; - offs4k = (pbuf->addr & ~PAGE_MASK) / EHCA_PAGESIZE; - while (pginfo->next_4k < offs4k + num4k) { - /* sanity check */ - if ((pginfo->page_cnt >= pginfo->num_pages) || - (pginfo->page_4k_cnt >= pginfo->num_4k)) { - ehca_gen_err("page_cnt >= num_pages, " - "page_cnt=%lx " - "num_pages=%lx " - "page_4k_cnt=%lx " - "num_4k=%lx i=%x", - pginfo->page_cnt, - pginfo->num_pages, - pginfo->page_4k_cnt, - pginfo->num_4k, i); - ret = -EFAULT; - goto ehca_set_pagebuf_exit0; - } - *kpage = phys_to_abs( - (pbuf->addr & EHCA_PAGEMASK) - + (pginfo->next_4k * EHCA_PAGESIZE)); - if ( !(*kpage) && pbuf->addr ) { - ehca_gen_err("pbuf->addr=%lx " - "pbuf->size=%lx " - "next_4k=%lx", pbuf->addr, - pbuf->size, - pginfo->next_4k); - ret = -EFAULT; - goto ehca_set_pagebuf_exit0; - } - (pginfo->page_4k_cnt)++; - (pginfo->next_4k)++; - if (pginfo->next_4k % - (PAGE_SIZE / EHCA_PAGESIZE) == 0) - (pginfo->page_cnt)++; - kpage++; - i++; - if (i >= number) break; - } - if (pginfo->next_4k >= offs4k + num4k) { - (pginfo->next_buf)++; - pginfo->next_4k = 0; - } - } - } else if (pginfo->type == EHCA_MR_PGI_USER) { - /* loop over desired chunk entries */ - chunk = pginfo->next_chunk; - prev_chunk = pginfo->next_chunk; - list_for_each_entry_continue(chunk, - (&(pginfo->region->chunk_list)), - list) { - for (i = pginfo->next_nmap; i < chunk->nmap; ) { - pgaddr = ( page_to_pfn(chunk->page_list[i].page) - << PAGE_SHIFT ); - *kpage = phys_to_abs(pgaddr + - (pginfo->next_4k * - EHCA_PAGESIZE)); - if ( !(*kpage) ) { - ehca_gen_err("pgaddr=%lx " - "chunk->page_list[i]=%lx " - "i=%x next_4k=%lx mr=%p", - pgaddr, - (u64)sg_dma_address( - &chunk-> - page_list[i]), - i, pginfo->next_4k, e_mr); - ret = -EFAULT; - goto ehca_set_pagebuf_exit0; - } - (pginfo->page_4k_cnt)++; - (pginfo->next_4k)++; - kpage++; - if (pginfo->next_4k % - (PAGE_SIZE / EHCA_PAGESIZE) == 0) { - (pginfo->page_cnt)++; - (pginfo->next_nmap)++; - pginfo->next_4k = 0; - i++; - } - j++; - if (j >= number) break; - } - if ((pginfo->next_nmap >= chunk->nmap) && - (j >= number)) { - pginfo->next_nmap = 0; - prev_chunk = chunk; - break; - } else if (pginfo->next_nmap >= chunk->nmap) { - pginfo->next_nmap = 0; - prev_chunk = chunk; - } else if (j >= number) - break; - else - prev_chunk = chunk; - } - pginfo->next_chunk = - list_prepare_entry(prev_chunk, - (&(pginfo->region->chunk_list)), - list); - } else if (pginfo->type == EHCA_MR_PGI_FMR) { - /* loop over desired page_list entries */ - fmrlist = pginfo->page_list + pginfo->next_listelem; - for (i = 0; i < number; i++) { - *kpage = phys_to_abs((*fmrlist & EHCA_PAGEMASK) + - pginfo->next_4k * EHCA_PAGESIZE); + /* loop over desired chunk entries */ + chunk = pginfo->u.usr.next_chunk; + prev_chunk = pginfo->u.usr.next_chunk; + list_for_each_entry_continue( + chunk, (&(pginfo->u.usr.region->chunk_list)), list) { + for (i = pginfo->u.usr.next_nmap; i < chunk->nmap; ) { + pgaddr = page_to_pfn(chunk->page_list[i].page) + << PAGE_SHIFT ; + *kpage = phys_to_abs(pgaddr + + (pginfo->next_hwpage * + EHCA_PAGESIZE)); if ( !(*kpage) ) { - ehca_gen_err("*fmrlist=%lx fmrlist=%p " - "next_listelem=%lx next_4k=%lx", - *fmrlist, fmrlist, - pginfo->next_listelem, - pginfo->next_4k); - ret = -EFAULT; - goto ehca_set_pagebuf_exit0; + ehca_gen_err("pgaddr=%lx " + "chunk->page_list[i]=%lx " + "i=%x next_hwpage=%lx", + pgaddr, (u64)sg_dma_address( + &chunk->page_list[i]), + i, pginfo->next_hwpage); + return -EFAULT; } - (pginfo->page_4k_cnt)++; - (pginfo->next_4k)++; + (pginfo->hwpage_cnt)++; + (pginfo->next_hwpage)++; kpage++; - if (pginfo->next_4k % - (e_mr->fmr_page_size / EHCA_PAGESIZE) == 0) { - (pginfo->page_cnt)++; - (pginfo->next_listelem)++; - fmrlist++; - pginfo->next_4k = 0; + if (pginfo->next_hwpage % + (PAGE_SIZE / EHCA_PAGESIZE) == 0) { + (pginfo->kpage_cnt)++; + (pginfo->u.usr.next_nmap)++; + pginfo->next_hwpage = 0; + i++; } + j++; + if (j >= number) break; } - } else { - ehca_gen_err("bad pginfo->type=%x", pginfo->type); - ret = -EFAULT; - goto ehca_set_pagebuf_exit0; + if ((pginfo->u.usr.next_nmap >= chunk->nmap) && + (j >= number)) { + pginfo->u.usr.next_nmap = 0; + prev_chunk = chunk; + break; + } else if (pginfo->u.usr.next_nmap >= chunk->nmap) { + pginfo->u.usr.next_nmap = 0; + prev_chunk = chunk; + } else if (j >= number) + break; + else + prev_chunk = chunk; } - -ehca_set_pagebuf_exit0: - if (ret) - ehca_gen_err("ret=%x e_mr=%p pginfo=%p type=%x num_pages=%lx " - "num_4k=%lx next_buf=%lx next_4k=%lx number=%x " - "kpage=%p page_cnt=%lx page_4k_cnt=%lx i=%x " - "next_listelem=%lx region=%p next_chunk=%p " - "next_nmap=%lx", ret, e_mr, pginfo, pginfo->type, - pginfo->num_pages, pginfo->num_4k, - pginfo->next_buf, pginfo->next_4k, number, kpage, - pginfo->page_cnt, pginfo->page_4k_cnt, i, - pginfo->next_listelem, pginfo->region, - pginfo->next_chunk, pginfo->next_nmap); + pginfo->u.usr.next_chunk = + list_prepare_entry(prev_chunk, + (&(pginfo->u.usr.region->chunk_list)), + list); return ret; -} /* end ehca_set_pagebuf() */ - -/*----------------------------------------------------------------------*/ +} -/* setup 1 page from page info page buffer */ -int ehca_set_pagebuf_1(struct ehca_mr *e_mr, - struct ehca_mr_pginfo *pginfo, - u64 *rpage) +int ehca_set_pagebuf_phys(struct ehca_mr_pginfo *pginfo, + u32 number, + u64 *kpage) { int ret = 0; - struct ib_phys_buf *tmp_pbuf; - u64 *fmrlist; - struct ib_umem_chunk *chunk; - struct ib_umem_chunk *prev_chunk; - u64 pgaddr, num4k, offs4k; - - if (pginfo->type == EHCA_MR_PGI_PHYS) { - /* sanity check */ - if ((pginfo->page_cnt >= pginfo->num_pages) || - (pginfo->page_4k_cnt >= pginfo->num_4k)) { - ehca_gen_err("page_cnt >= num_pages, page_cnt=%lx " - "num_pages=%lx page_4k_cnt=%lx num_4k=%lx", - pginfo->page_cnt, pginfo->num_pages, - pginfo->page_4k_cnt, pginfo->num_4k); - ret = -EFAULT; - goto ehca_set_pagebuf_1_exit0; - } - tmp_pbuf = pginfo->phys_buf_array + pginfo->next_buf; - num4k = ((tmp_pbuf->addr % EHCA_PAGESIZE) + tmp_pbuf->size + - EHCA_PAGESIZE - 1) / EHCA_PAGESIZE; - offs4k = (tmp_pbuf->addr & ~PAGE_MASK) / EHCA_PAGESIZE; - *rpage = phys_to_abs((tmp_pbuf->addr & EHCA_PAGEMASK) + - (pginfo->next_4k * EHCA_PAGESIZE)); - if ( !(*rpage) && tmp_pbuf->addr ) { - ehca_gen_err("tmp_pbuf->addr=%lx" - " tmp_pbuf->size=%lx next_4k=%lx", - tmp_pbuf->addr, tmp_pbuf->size, - pginfo->next_4k); - ret = -EFAULT; - goto ehca_set_pagebuf_1_exit0; - } - (pginfo->page_4k_cnt)++; - (pginfo->next_4k)++; - if (pginfo->next_4k % (PAGE_SIZE / EHCA_PAGESIZE) == 0) - (pginfo->page_cnt)++; - if (pginfo->next_4k >= offs4k + num4k) { - (pginfo->next_buf)++; - pginfo->next_4k = 0; - } - } else if (pginfo->type == EHCA_MR_PGI_USER) { - chunk = pginfo->next_chunk; - prev_chunk = pginfo->next_chunk; - list_for_each_entry_continue(chunk, - (&(pginfo->region->chunk_list)), - list) { - pgaddr = ( page_to_pfn(chunk->page_list[ - pginfo->next_nmap].page) - << PAGE_SHIFT); - *rpage = phys_to_abs(pgaddr + - (pginfo->next_4k * EHCA_PAGESIZE)); - if ( !(*rpage) ) { - ehca_gen_err("pgaddr=%lx chunk->page_list[]=%lx" - " next_nmap=%lx next_4k=%lx mr=%p", - pgaddr, (u64)sg_dma_address( - &chunk->page_list[ - pginfo-> - next_nmap]), - pginfo->next_nmap, pginfo->next_4k, - e_mr); - ret = -EFAULT; - goto ehca_set_pagebuf_1_exit0; - } - (pginfo->page_4k_cnt)++; - (pginfo->next_4k)++; - if (pginfo->next_4k % - (PAGE_SIZE / EHCA_PAGESIZE) == 0) { - (pginfo->page_cnt)++; - (pginfo->next_nmap)++; - pginfo->next_4k = 0; + struct ib_phys_buf *pbuf; + u64 num_hw, offs_hw; + u32 i = 0; + + /* loop over desired phys_buf_array entries */ + while (i < number) { + pbuf = pginfo->u.phy.phys_buf_array + pginfo->u.phy.next_buf; + num_hw = NUM_CHUNKS((pbuf->addr % EHCA_PAGESIZE) + + pbuf->size, EHCA_PAGESIZE); + offs_hw = (pbuf->addr & ~PAGE_MASK) / EHCA_PAGESIZE; + while (pginfo->next_hwpage < offs_hw + num_hw) { + /* sanity check */ + if ((pginfo->kpage_cnt >= pginfo->num_kpages) || + (pginfo->hwpage_cnt >= pginfo->num_hwpages)) { + ehca_gen_err("kpage_cnt >= num_kpages, " + "kpage_cnt=%lx num_kpages=%lx " + "hwpage_cnt=%lx " + "num_hwpages=%lx i=%x", + pginfo->kpage_cnt, + pginfo->num_kpages, + pginfo->hwpage_cnt, + pginfo->num_hwpages, i); + return -EFAULT; } - if (pginfo->next_nmap >= chunk->nmap) { - pginfo->next_nmap = 0; - prev_chunk = chunk; + *kpage = phys_to_abs( + (pbuf->addr & EHCA_PAGEMASK) + + (pginfo->next_hwpage * EHCA_PAGESIZE)); + if ( !(*kpage) && pbuf->addr ) { + ehca_gen_err("pbuf->addr=%lx " + "pbuf->size=%lx " + "next_hwpage=%lx", pbuf->addr, + pbuf->size, + pginfo->next_hwpage); + return -EFAULT; } - break; + (pginfo->hwpage_cnt)++; + (pginfo->next_hwpage)++; + if (pginfo->next_hwpage % + (PAGE_SIZE / EHCA_PAGESIZE) == 0) + (pginfo->kpage_cnt)++; + kpage++; + i++; + if (i >= number) break; + } + if (pginfo->next_hwpage >= offs_hw + num_hw) { + (pginfo->u.phy.next_buf)++; + pginfo->next_hwpage = 0; } - pginfo->next_chunk = - list_prepare_entry(prev_chunk, - (&(pginfo->region->chunk_list)), - list); - } else if (pginfo->type == EHCA_MR_PGI_FMR) { - fmrlist = pginfo->page_list + pginfo->next_listelem; - *rpage = phys_to_abs((*fmrlist & EHCA_PAGEMASK) + - pginfo->next_4k * EHCA_PAGESIZE); - if ( !(*rpage) ) { + } + return ret; +} + +int ehca_set_pagebuf_fmr(struct ehca_mr_pginfo *pginfo, + u32 number, + u64 *kpage) +{ + int ret = 0; + u64 *fmrlist; + u32 i; + + /* loop over desired page_list entries */ + fmrlist = pginfo->u.fmr.page_list + pginfo->u.fmr.next_listelem; + for (i = 0; i < number; i++) { + *kpage = phys_to_abs((*fmrlist & EHCA_PAGEMASK) + + pginfo->next_hwpage * EHCA_PAGESIZE); + if ( !(*kpage) ) { ehca_gen_err("*fmrlist=%lx fmrlist=%p " - "next_listelem=%lx next_4k=%lx", - *fmrlist, fmrlist, pginfo->next_listelem, - pginfo->next_4k); - ret = -EFAULT; - goto ehca_set_pagebuf_1_exit0; + "next_listelem=%lx next_hwpage=%lx", + *fmrlist, fmrlist, + pginfo->u.fmr.next_listelem, + pginfo->next_hwpage); + return -EFAULT; } - (pginfo->page_4k_cnt)++; - (pginfo->next_4k)++; - if (pginfo->next_4k % - (e_mr->fmr_page_size / EHCA_PAGESIZE) == 0) { - (pginfo->page_cnt)++; - (pginfo->next_listelem)++; - pginfo->next_4k = 0; + (pginfo->hwpage_cnt)++; + (pginfo->next_hwpage)++; + kpage++; + if (pginfo->next_hwpage % + (pginfo->u.fmr.fmr_pgsize / EHCA_PAGESIZE) == 0) { + (pginfo->kpage_cnt)++; + (pginfo->u.fmr.next_listelem)++; + fmrlist++; + pginfo->next_hwpage = 0; } - } else { + } + return ret; +} + +/* setup page buffer from page info */ +int ehca_set_pagebuf(struct ehca_mr_pginfo *pginfo, + u32 number, + u64 *kpage) +{ + int ret; + + switch (pginfo->type) { + case EHCA_MR_PGI_PHYS: + ret = ehca_set_pagebuf_phys(pginfo, number, kpage); + break; + case EHCA_MR_PGI_USER: + ret = ehca_set_pagebuf_user1(pginfo, number, kpage); + break; + case EHCA_MR_PGI_FMR: + ret = ehca_set_pagebuf_fmr(pginfo, number, kpage); + break; + default: ehca_gen_err("bad pginfo->type=%x", pginfo->type); ret = -EFAULT; - goto ehca_set_pagebuf_1_exit0; + break; } - -ehca_set_pagebuf_1_exit0: - if (ret) - ehca_gen_err("ret=%x e_mr=%p pginfo=%p type=%x num_pages=%lx " - "num_4k=%lx next_buf=%lx next_4k=%lx rpage=%p " - "page_cnt=%lx page_4k_cnt=%lx next_listelem=%lx " - "region=%p next_chunk=%p next_nmap=%lx", ret, e_mr, - pginfo, pginfo->type, pginfo->num_pages, - pginfo->num_4k, pginfo->next_buf, pginfo->next_4k, - rpage, pginfo->page_cnt, pginfo->page_4k_cnt, - pginfo->next_listelem, pginfo->region, - pginfo->next_chunk, pginfo->next_nmap); return ret; -} /* end ehca_set_pagebuf_1() */ +} /* end ehca_set_pagebuf() */ /*----------------------------------------------------------------------*/ @@ -1982,7 +1866,7 @@ int ehca_mr_is_maxmr(u64 size, { /* a MR is treated as max-MR only if it fits following: */ if ((size == ((u64)high_memory - PAGE_OFFSET)) && - (iova_start == (void*)KERNELBASE)) { + (iova_start == (void *)KERNELBASE)) { ehca_gen_dbg("this is a max-MR"); return 1; } else @@ -2042,196 +1926,23 @@ void ehca_mrmw_reverse_map_acl(const u32 *hipz_acl, /*----------------------------------------------------------------------*/ /* - * map HIPZ rc to IB retcodes for MR/MW allocations - * Used for hipz_mr_reg_alloc and hipz_mw_alloc. - */ -int ehca_mrmw_map_hrc_alloc(const u64 hipz_rc) -{ - switch (hipz_rc) { - case H_SUCCESS: /* successful completion */ - return 0; - case H_NOT_ENOUGH_RESOURCES: /* insufficient resources */ - case H_CONSTRAINED: /* resource constraint */ - case H_NO_MEM: - return -ENOMEM; - case H_BUSY: /* long busy */ - return -EBUSY; - default: - return -EINVAL; - } -} /* end ehca_mrmw_map_hrc_alloc() */ - -/*----------------------------------------------------------------------*/ - -/* - * map HIPZ rc to IB retcodes for MR register rpage - * Used for hipz_h_register_rpage_mr at registering last page - */ -int ehca_mrmw_map_hrc_rrpg_last(const u64 hipz_rc) -{ - switch (hipz_rc) { - case H_SUCCESS: /* registration complete */ - return 0; - case H_PAGE_REGISTERED: /* page registered */ - case H_ADAPTER_PARM: /* invalid adapter handle */ - case H_RH_PARM: /* invalid resource handle */ -/* case H_QT_PARM: invalid queue type */ - case H_PARAMETER: /* - * invalid logical address, - * or count zero or greater 512 - */ - case H_TABLE_FULL: /* page table full */ - case H_HARDWARE: /* HCA not operational */ - return -EINVAL; - case H_BUSY: /* long busy */ - return -EBUSY; - default: - return -EINVAL; - } -} /* end ehca_mrmw_map_hrc_rrpg_last() */ - -/*----------------------------------------------------------------------*/ - -/* - * map HIPZ rc to IB retcodes for MR register rpage - * Used for hipz_h_register_rpage_mr at registering one page, but not last page - */ -int ehca_mrmw_map_hrc_rrpg_notlast(const u64 hipz_rc) -{ - switch (hipz_rc) { - case H_PAGE_REGISTERED: /* page registered */ - return 0; - case H_SUCCESS: /* registration complete */ - case H_ADAPTER_PARM: /* invalid adapter handle */ - case H_RH_PARM: /* invalid resource handle */ -/* case H_QT_PARM: invalid queue type */ - case H_PARAMETER: /* - * invalid logical address, - * or count zero or greater 512 - */ - case H_TABLE_FULL: /* page table full */ - case H_HARDWARE: /* HCA not operational */ - return -EINVAL; - case H_BUSY: /* long busy */ - return -EBUSY; - default: - return -EINVAL; - } -} /* end ehca_mrmw_map_hrc_rrpg_notlast() */ - -/*----------------------------------------------------------------------*/ - -/* map HIPZ rc to IB retcodes for MR query. Used for hipz_mr_query. */ -int ehca_mrmw_map_hrc_query_mr(const u64 hipz_rc) -{ - switch (hipz_rc) { - case H_SUCCESS: /* successful completion */ - return 0; - case H_ADAPTER_PARM: /* invalid adapter handle */ - case H_RH_PARM: /* invalid resource handle */ - return -EINVAL; - case H_BUSY: /* long busy */ - return -EBUSY; - default: - return -EINVAL; - } -} /* end ehca_mrmw_map_hrc_query_mr() */ - -/*----------------------------------------------------------------------*/ -/*----------------------------------------------------------------------*/ - -/* - * map HIPZ rc to IB retcodes for freeing MR resource - * Used for hipz_h_free_resource_mr - */ -int ehca_mrmw_map_hrc_free_mr(const u64 hipz_rc) -{ - switch (hipz_rc) { - case H_SUCCESS: /* resource freed */ - return 0; - case H_ADAPTER_PARM: /* invalid adapter handle */ - case H_RH_PARM: /* invalid resource handle */ - case H_R_STATE: /* invalid resource state */ - case H_HARDWARE: /* HCA not operational */ - return -EINVAL; - case H_RESOURCE: /* Resource in use */ - case H_BUSY: /* long busy */ - return -EBUSY; - default: - return -EINVAL; - } -} /* end ehca_mrmw_map_hrc_free_mr() */ - -/*----------------------------------------------------------------------*/ - -/* - * map HIPZ rc to IB retcodes for freeing MW resource - * Used for hipz_h_free_resource_mw - */ -int ehca_mrmw_map_hrc_free_mw(const u64 hipz_rc) -{ - switch (hipz_rc) { - case H_SUCCESS: /* resource freed */ - return 0; - case H_ADAPTER_PARM: /* invalid adapter handle */ - case H_RH_PARM: /* invalid resource handle */ - case H_R_STATE: /* invalid resource state */ - case H_HARDWARE: /* HCA not operational */ - return -EINVAL; - case H_RESOURCE: /* Resource in use */ - case H_BUSY: /* long busy */ - return -EBUSY; - default: - return -EINVAL; - } -} /* end ehca_mrmw_map_hrc_free_mw() */ - -/*----------------------------------------------------------------------*/ - -/* - * map HIPZ rc to IB retcodes for SMR registrations - * Used for hipz_h_register_smr. - */ -int ehca_mrmw_map_hrc_reg_smr(const u64 hipz_rc) -{ - switch (hipz_rc) { - case H_SUCCESS: /* successful completion */ - return 0; - case H_ADAPTER_PARM: /* invalid adapter handle */ - case H_RH_PARM: /* invalid resource handle */ - case H_MEM_PARM: /* invalid MR virtual address */ - case H_MEM_ACCESS_PARM: /* invalid access controls */ - case H_NOT_ENOUGH_RESOURCES: /* insufficient resources */ - return -EINVAL; - case H_BUSY: /* long busy */ - return -EBUSY; - default: - return -EINVAL; - } -} /* end ehca_mrmw_map_hrc_reg_smr() */ - -/*----------------------------------------------------------------------*/ - -/* * MR destructor and constructor * used in Reregister MR verb, sets all fields in ehca_mr_t to 0, * except struct ib_mr and spinlock */ void ehca_mr_deletenew(struct ehca_mr *mr) { - mr->flags = 0; - mr->num_pages = 0; - mr->num_4k = 0; - mr->acl = 0; - mr->start = NULL; + mr->flags = 0; + mr->num_kpages = 0; + mr->num_hwpages = 0; + mr->acl = 0; + mr->start = NULL; mr->fmr_page_size = 0; mr->fmr_max_pages = 0; - mr->fmr_max_maps = 0; - mr->fmr_map_cnt = 0; + mr->fmr_max_maps = 0; + mr->fmr_map_cnt = 0; memset(&mr->ipz_mr_handle, 0, sizeof(mr->ipz_mr_handle)); memset(&mr->galpas, 0, sizeof(mr->galpas)); - mr->nr_of_pages = 0; - mr->pagearray = NULL; } /* end ehca_mr_deletenew() */ int ehca_init_mrmw_cache(void) diff --git a/drivers/infiniband/hw/ehca/ehca_mrmw.h b/drivers/infiniband/hw/ehca/ehca_mrmw.h index d936e40a574..24f13fe3708 100644 --- a/drivers/infiniband/hw/ehca/ehca_mrmw.h +++ b/drivers/infiniband/hw/ehca/ehca_mrmw.h @@ -101,15 +101,10 @@ int ehca_fmr_check_page_list(struct ehca_mr *e_fmr, u64 *page_list, int list_len); -int ehca_set_pagebuf(struct ehca_mr *e_mr, - struct ehca_mr_pginfo *pginfo, +int ehca_set_pagebuf(struct ehca_mr_pginfo *pginfo, u32 number, u64 *kpage); -int ehca_set_pagebuf_1(struct ehca_mr *e_mr, - struct ehca_mr_pginfo *pginfo, - u64 *rpage); - int ehca_mr_is_maxmr(u64 size, u64 *iova_start); @@ -121,20 +116,6 @@ void ehca_mrmw_set_pgsize_hipz_acl(u32 *hipz_acl); void ehca_mrmw_reverse_map_acl(const u32 *hipz_acl, int *ib_acl); -int ehca_mrmw_map_hrc_alloc(const u64 hipz_rc); - -int ehca_mrmw_map_hrc_rrpg_last(const u64 hipz_rc); - -int ehca_mrmw_map_hrc_rrpg_notlast(const u64 hipz_rc); - -int ehca_mrmw_map_hrc_query_mr(const u64 hipz_rc); - -int ehca_mrmw_map_hrc_free_mr(const u64 hipz_rc); - -int ehca_mrmw_map_hrc_free_mw(const u64 hipz_rc); - -int ehca_mrmw_map_hrc_reg_smr(const u64 hipz_rc); - void ehca_mr_deletenew(struct ehca_mr *mr); #endif /*_EHCA_MRMW_H_*/ diff --git a/drivers/infiniband/hw/ehca/ehca_qes.h b/drivers/infiniband/hw/ehca/ehca_qes.h index 8707d297ce4..818803057eb 100644 --- a/drivers/infiniband/hw/ehca/ehca_qes.h +++ b/drivers/infiniband/hw/ehca/ehca_qes.h @@ -53,13 +53,13 @@ struct ehca_vsgentry { u32 length; }; -#define GRH_FLAG_MASK EHCA_BMASK_IBM(7,7) -#define GRH_IPVERSION_MASK EHCA_BMASK_IBM(0,3) -#define GRH_TCLASS_MASK EHCA_BMASK_IBM(4,12) -#define GRH_FLOWLABEL_MASK EHCA_BMASK_IBM(13,31) -#define GRH_PAYLEN_MASK EHCA_BMASK_IBM(32,47) -#define GRH_NEXTHEADER_MASK EHCA_BMASK_IBM(48,55) -#define GRH_HOPLIMIT_MASK EHCA_BMASK_IBM(56,63) +#define GRH_FLAG_MASK EHCA_BMASK_IBM( 7, 7) +#define GRH_IPVERSION_MASK EHCA_BMASK_IBM( 0, 3) +#define GRH_TCLASS_MASK EHCA_BMASK_IBM( 4, 12) +#define GRH_FLOWLABEL_MASK EHCA_BMASK_IBM(13, 31) +#define GRH_PAYLEN_MASK EHCA_BMASK_IBM(32, 47) +#define GRH_NEXTHEADER_MASK EHCA_BMASK_IBM(48, 55) +#define GRH_HOPLIMIT_MASK EHCA_BMASK_IBM(56, 63) /* * Unreliable Datagram Address Vector Format @@ -206,10 +206,10 @@ struct ehca_wqe { }; -#define WC_SEND_RECEIVE EHCA_BMASK_IBM(0,0) -#define WC_IMM_DATA EHCA_BMASK_IBM(1,1) -#define WC_GRH_PRESENT EHCA_BMASK_IBM(2,2) -#define WC_SE_BIT EHCA_BMASK_IBM(3,3) +#define WC_SEND_RECEIVE EHCA_BMASK_IBM(0, 0) +#define WC_IMM_DATA EHCA_BMASK_IBM(1, 1) +#define WC_GRH_PRESENT EHCA_BMASK_IBM(2, 2) +#define WC_SE_BIT EHCA_BMASK_IBM(3, 3) #define WC_STATUS_ERROR_BIT 0x80000000 #define WC_STATUS_REMOTE_ERROR_FLAGS 0x0000F800 #define WC_STATUS_PURGE_BIT 0x10 diff --git a/drivers/infiniband/hw/ehca/ehca_qp.c b/drivers/infiniband/hw/ehca/ehca_qp.c index 74671250303..48e9ceacd6f 100644 --- a/drivers/infiniband/hw/ehca/ehca_qp.c +++ b/drivers/infiniband/hw/ehca/ehca_qp.c @@ -602,10 +602,10 @@ struct ehca_qp *internal_create_qp(struct ib_pd *pd, /* UD circumvention */ parms.act_nr_send_sges -= 2; parms.act_nr_recv_sges -= 2; - swqe_size = offsetof(struct ehca_wqe, - u.ud_av.sg_list[parms.act_nr_send_sges]); - rwqe_size = offsetof(struct ehca_wqe, - u.ud_av.sg_list[parms.act_nr_recv_sges]); + swqe_size = offsetof(struct ehca_wqe, u.ud_av.sg_list[ + parms.act_nr_send_sges]); + rwqe_size = offsetof(struct ehca_wqe, u.ud_av.sg_list[ + parms.act_nr_recv_sges]); } if (IB_QPT_GSI == qp_type || IB_QPT_SMI == qp_type) { @@ -690,8 +690,8 @@ struct ehca_qp *internal_create_qp(struct ib_pd *pd, if (my_qp->send_cq) { ret = ehca_cq_assign_qp(my_qp->send_cq, my_qp); if (ret) { - ehca_err(pd->device, "Couldn't assign qp to send_cq ret=%x", - ret); + ehca_err(pd->device, + "Couldn't assign qp to send_cq ret=%x", ret); goto create_qp_exit4; } } @@ -749,7 +749,7 @@ struct ib_qp *ehca_create_qp(struct ib_pd *pd, struct ehca_qp *ret; ret = internal_create_qp(pd, qp_init_attr, NULL, udata, 0); - return IS_ERR(ret) ? (struct ib_qp *) ret : &ret->ib_qp; + return IS_ERR(ret) ? (struct ib_qp *)ret : &ret->ib_qp; } int internal_destroy_qp(struct ib_device *dev, struct ehca_qp *my_qp, @@ -780,7 +780,7 @@ struct ib_srq *ehca_create_srq(struct ib_pd *pd, my_qp = internal_create_qp(pd, &qp_init_attr, srq_init_attr, udata, 1); if (IS_ERR(my_qp)) - return (struct ib_srq *) my_qp; + return (struct ib_srq *)my_qp; /* copy back return values */ srq_init_attr->attr.max_wr = qp_init_attr.cap.max_recv_wr; @@ -875,7 +875,7 @@ static int prepare_sqe_rts(struct ehca_qp *my_qp, struct ehca_shca *shca, my_qp, qp_num, h_ret); return ehca2ib_return_code(h_ret); } - bad_send_wqe_p = (void*)((u64)bad_send_wqe_p & (~(1L<<63))); + bad_send_wqe_p = (void *)((u64)bad_send_wqe_p & (~(1L << 63))); ehca_dbg(&shca->ib_device, "qp_num=%x bad_send_wqe_p=%p", qp_num, bad_send_wqe_p); /* convert wqe pointer to vadr */ @@ -890,7 +890,7 @@ static int prepare_sqe_rts(struct ehca_qp *my_qp, struct ehca_shca *shca, } /* loop sets wqe's purge bit */ - wqe = (struct ehca_wqe*)ipz_qeit_calc(squeue, q_ofs); + wqe = (struct ehca_wqe *)ipz_qeit_calc(squeue, q_ofs); *bad_wqe_cnt = 0; while (wqe->optype != 0xff && wqe->wqef != 0xff) { if (ehca_debug_level) @@ -898,7 +898,7 @@ static int prepare_sqe_rts(struct ehca_qp *my_qp, struct ehca_shca *shca, wqe->nr_of_data_seg = 0; /* suppress data access */ wqe->wqef = WQEF_PURGE; /* WQE to be purged */ q_ofs = ipz_queue_advance_offset(squeue, q_ofs); - wqe = (struct ehca_wqe*)ipz_qeit_calc(squeue, q_ofs); + wqe = (struct ehca_wqe *)ipz_qeit_calc(squeue, q_ofs); *bad_wqe_cnt = (*bad_wqe_cnt)+1; } /* @@ -1003,7 +1003,7 @@ static int internal_modify_qp(struct ib_qp *ibqp, goto modify_qp_exit1; } - ehca_dbg(ibqp->device,"ehca_qp=%p qp_num=%x current qp_state=%x " + ehca_dbg(ibqp->device, "ehca_qp=%p qp_num=%x current qp_state=%x " "new qp_state=%x attribute_mask=%x", my_qp, ibqp->qp_num, qp_cur_state, attr->qp_state, attr_mask); @@ -1019,7 +1019,8 @@ static int internal_modify_qp(struct ib_qp *ibqp, goto modify_qp_exit1; } - if ((mqpcb->qp_state = ib2ehca_qp_state(qp_new_state))) + mqpcb->qp_state = ib2ehca_qp_state(qp_new_state); + if (mqpcb->qp_state) update_mask = EHCA_BMASK_SET(MQPCB_MASK_QP_STATE, 1); else { ret = -EINVAL; @@ -1077,7 +1078,7 @@ static int internal_modify_qp(struct ib_qp *ibqp, spin_lock_irqsave(&my_qp->spinlock_s, flags); squeue_locked = 1; /* mark next free wqe */ - wqe = (struct ehca_wqe*) + wqe = (struct ehca_wqe *) ipz_qeit_get(&my_qp->ipz_squeue); wqe->optype = wqe->wqef = 0xff; ehca_dbg(ibqp->device, "qp_num=%x next_free_wqe=%p", @@ -1312,7 +1313,7 @@ static int internal_modify_qp(struct ib_qp *ibqp, if (h_ret != H_SUCCESS) { ret = ehca2ib_return_code(h_ret); ehca_err(ibqp->device, "hipz_h_modify_qp() failed rc=%lx " - "ehca_qp=%p qp_num=%x",h_ret, my_qp, ibqp->qp_num); + "ehca_qp=%p qp_num=%x", h_ret, my_qp, ibqp->qp_num); goto modify_qp_exit2; } @@ -1411,7 +1412,7 @@ int ehca_query_qp(struct ib_qp *qp, } if (qp_attr_mask & QP_ATTR_QUERY_NOT_SUPPORTED) { - ehca_err(qp->device,"Invalid attribute mask " + ehca_err(qp->device, "Invalid attribute mask " "ehca_qp=%p qp_num=%x qp_attr_mask=%x ", my_qp, qp->qp_num, qp_attr_mask); return -EINVAL; @@ -1419,7 +1420,7 @@ int ehca_query_qp(struct ib_qp *qp, qpcb = ehca_alloc_fw_ctrlblock(GFP_KERNEL); if (!qpcb) { - ehca_err(qp->device,"Out of memory for qpcb " + ehca_err(qp->device, "Out of memory for qpcb " "ehca_qp=%p qp_num=%x", my_qp, qp->qp_num); return -ENOMEM; } @@ -1431,7 +1432,7 @@ int ehca_query_qp(struct ib_qp *qp, if (h_ret != H_SUCCESS) { ret = ehca2ib_return_code(h_ret); - ehca_err(qp->device,"hipz_h_query_qp() failed " + ehca_err(qp->device, "hipz_h_query_qp() failed " "ehca_qp=%p qp_num=%x h_ret=%lx", my_qp, qp->qp_num, h_ret); goto query_qp_exit1; @@ -1442,7 +1443,7 @@ int ehca_query_qp(struct ib_qp *qp, if (qp_attr->cur_qp_state == -EINVAL) { ret = -EINVAL; - ehca_err(qp->device,"Got invalid ehca_qp_state=%x " + ehca_err(qp->device, "Got invalid ehca_qp_state=%x " "ehca_qp=%p qp_num=%x", qpcb->qp_state, my_qp, qp->qp_num); goto query_qp_exit1; diff --git a/drivers/infiniband/hw/ehca/ehca_reqs.c b/drivers/infiniband/hw/ehca/ehca_reqs.c index 61da65e6e5e..94eed70fedf 100644 --- a/drivers/infiniband/hw/ehca/ehca_reqs.c +++ b/drivers/infiniband/hw/ehca/ehca_reqs.c @@ -79,7 +79,8 @@ static inline int ehca_write_rwqe(struct ipz_queue *ipz_rqueue, } if (ehca_debug_level) { - ehca_gen_dbg("RECEIVE WQE written into ipz_rqueue=%p", ipz_rqueue); + ehca_gen_dbg("RECEIVE WQE written into ipz_rqueue=%p", + ipz_rqueue); ehca_dmp( wqe_p, 16*(6 + wqe_p->nr_of_data_seg), "recv wqe"); } @@ -99,7 +100,7 @@ static void trace_send_wr_ud(const struct ib_send_wr *send_wr) struct ib_mad_hdr *mad_hdr = send_wr->wr.ud.mad_hdr; struct ib_sge *sge = send_wr->sg_list; ehca_gen_dbg("send_wr#%x wr_id=%lx num_sge=%x " - "send_flags=%x opcode=%x",idx, send_wr->wr_id, + "send_flags=%x opcode=%x", idx, send_wr->wr_id, send_wr->num_sge, send_wr->send_flags, send_wr->opcode); if (mad_hdr) { @@ -116,7 +117,7 @@ static void trace_send_wr_ud(const struct ib_send_wr *send_wr) mad_hdr->attr_mod); } for (j = 0; j < send_wr->num_sge; j++) { - u8 *data = (u8 *) abs_to_virt(sge->addr); + u8 *data = (u8 *)abs_to_virt(sge->addr); ehca_gen_dbg("send_wr#%x sge#%x addr=%p length=%x " "lkey=%x", idx, j, data, sge->length, sge->lkey); @@ -534,9 +535,11 @@ poll_cq_one_read_cqe: cqe_count++; if (unlikely(cqe->status & WC_STATUS_PURGE_BIT)) { - struct ehca_qp *qp=ehca_cq_get_qp(my_cq, cqe->local_qp_number); + struct ehca_qp *qp; int purgeflag; unsigned long flags; + + qp = ehca_cq_get_qp(my_cq, cqe->local_qp_number); if (!qp) { ehca_err(cq->device, "cq_num=%x qp_num=%x " "could not find qp -> ignore cqe", @@ -551,8 +554,8 @@ poll_cq_one_read_cqe: spin_unlock_irqrestore(&qp->spinlock_s, flags); if (purgeflag) { - ehca_dbg(cq->device, "Got CQE with purged bit qp_num=%x " - "src_qp=%x", + ehca_dbg(cq->device, + "Got CQE with purged bit qp_num=%x src_qp=%x", cqe->local_qp_number, cqe->remote_qp_number); if (ehca_debug_level) ehca_dmp(cqe, 64, "qp_num=%x src_qp=%x", diff --git a/drivers/infiniband/hw/ehca/ehca_tools.h b/drivers/infiniband/hw/ehca/ehca_tools.h index 03b185f873d..678b8139186 100644 --- a/drivers/infiniband/hw/ehca/ehca_tools.h +++ b/drivers/infiniband/hw/ehca/ehca_tools.h @@ -93,14 +93,14 @@ extern int ehca_debug_level; #define ehca_gen_dbg(format, arg...) \ do { \ if (unlikely(ehca_debug_level)) \ - printk(KERN_DEBUG "PU%04x EHCA_DBG:%s " format "\n",\ + printk(KERN_DEBUG "PU%04x EHCA_DBG:%s " format "\n", \ get_paca()->paca_index, __FUNCTION__, ## arg); \ } while (0) #define ehca_gen_warn(format, arg...) \ do { \ if (unlikely(ehca_debug_level)) \ - printk(KERN_INFO "PU%04x EHCA_WARN:%s " format "\n",\ + printk(KERN_INFO "PU%04x EHCA_WARN:%s " format "\n", \ get_paca()->paca_index, __FUNCTION__, ## arg); \ } while (0) @@ -114,12 +114,12 @@ extern int ehca_debug_level; * <format string> adr=X ofs=Y <8 bytes hex> <8 bytes hex> */ #define ehca_dmp(adr, len, format, args...) \ - do { \ - unsigned int x; \ + do { \ + unsigned int x; \ unsigned int l = (unsigned int)(len); \ - unsigned char *deb = (unsigned char*)(adr); \ + unsigned char *deb = (unsigned char *)(adr); \ for (x = 0; x < l; x += 16) { \ - printk("EHCA_DMP:%s " format \ + printk(KERN_INFO "EHCA_DMP:%s " format \ " adr=%p ofs=%04x %016lx %016lx\n", \ __FUNCTION__, ##args, deb, x, \ *((u64 *)&deb[0]), *((u64 *)&deb[8])); \ @@ -128,16 +128,16 @@ extern int ehca_debug_level; } while (0) /* define a bitmask, little endian version */ -#define EHCA_BMASK(pos,length) (((pos)<<16)+(length)) +#define EHCA_BMASK(pos, length) (((pos) << 16) + (length)) /* define a bitmask, the ibm way... */ -#define EHCA_BMASK_IBM(from,to) (((63-to)<<16)+((to)-(from)+1)) +#define EHCA_BMASK_IBM(from, to) (((63 - to) << 16) + ((to) - (from) + 1)) /* internal function, don't use */ -#define EHCA_BMASK_SHIFTPOS(mask) (((mask)>>16)&0xffff) +#define EHCA_BMASK_SHIFTPOS(mask) (((mask) >> 16) & 0xffff) /* internal function, don't use */ -#define EHCA_BMASK_MASK(mask) (0xffffffffffffffffULL >> ((64-(mask))&0xffff)) +#define EHCA_BMASK_MASK(mask) (~0ULL >> ((64 - (mask)) & 0xffff)) /** * EHCA_BMASK_SET - return value shifted and masked by mask @@ -145,14 +145,14 @@ extern int ehca_debug_level; * variable&=~EHCA_BMASK_SET(MY_MASK,-1) clears the bits from the mask * in variable */ -#define EHCA_BMASK_SET(mask,value) \ - ((EHCA_BMASK_MASK(mask) & ((u64)(value)))<<EHCA_BMASK_SHIFTPOS(mask)) +#define EHCA_BMASK_SET(mask, value) \ + ((EHCA_BMASK_MASK(mask) & ((u64)(value))) << EHCA_BMASK_SHIFTPOS(mask)) /** * EHCA_BMASK_GET - extract a parameter from value by mask */ -#define EHCA_BMASK_GET(mask,value) \ - (EHCA_BMASK_MASK(mask)& (((u64)(value))>>EHCA_BMASK_SHIFTPOS(mask))) +#define EHCA_BMASK_GET(mask, value) \ + (EHCA_BMASK_MASK(mask) & (((u64)(value)) >> EHCA_BMASK_SHIFTPOS(mask))) /* Converts ehca to ib return code */ @@ -161,8 +161,11 @@ static inline int ehca2ib_return_code(u64 ehca_rc) switch (ehca_rc) { case H_SUCCESS: return 0; + case H_RESOURCE: /* Resource in use */ case H_BUSY: return -EBUSY; + case H_NOT_ENOUGH_RESOURCES: /* insufficient resources */ + case H_CONSTRAINED: /* resource constraint */ case H_NO_MEM: return -ENOMEM; default: diff --git a/drivers/infiniband/hw/ehca/ehca_uverbs.c b/drivers/infiniband/hw/ehca/ehca_uverbs.c index 3031b3bb56f..05c415744e3 100644 --- a/drivers/infiniband/hw/ehca/ehca_uverbs.c +++ b/drivers/infiniband/hw/ehca/ehca_uverbs.c @@ -70,7 +70,7 @@ int ehca_dealloc_ucontext(struct ib_ucontext *context) static void ehca_mm_open(struct vm_area_struct *vma) { - u32 *count = (u32*)vma->vm_private_data; + u32 *count = (u32 *)vma->vm_private_data; if (!count) { ehca_gen_err("Invalid vma struct vm_start=%lx vm_end=%lx", vma->vm_start, vma->vm_end); @@ -86,7 +86,7 @@ static void ehca_mm_open(struct vm_area_struct *vma) static void ehca_mm_close(struct vm_area_struct *vma) { - u32 *count = (u32*)vma->vm_private_data; + u32 *count = (u32 *)vma->vm_private_data; if (!count) { ehca_gen_err("Invalid vma struct vm_start=%lx vm_end=%lx", vma->vm_start, vma->vm_end); @@ -215,7 +215,8 @@ static int ehca_mmap_qp(struct vm_area_struct *vma, struct ehca_qp *qp, case 2: /* qp rqueue_addr */ ehca_dbg(qp->ib_qp.device, "qp_num=%x rqueue", qp->ib_qp.qp_num); - ret = ehca_mmap_queue(vma, &qp->ipz_rqueue, &qp->mm_count_rqueue); + ret = ehca_mmap_queue(vma, &qp->ipz_rqueue, + &qp->mm_count_rqueue); if (unlikely(ret)) { ehca_err(qp->ib_qp.device, "ehca_mmap_queue(rq) failed rc=%x qp_num=%x", @@ -227,7 +228,8 @@ static int ehca_mmap_qp(struct vm_area_struct *vma, struct ehca_qp *qp, case 3: /* qp squeue_addr */ ehca_dbg(qp->ib_qp.device, "qp_num=%x squeue", qp->ib_qp.qp_num); - ret = ehca_mmap_queue(vma, &qp->ipz_squeue, &qp->mm_count_squeue); + ret = ehca_mmap_queue(vma, &qp->ipz_squeue, + &qp->mm_count_squeue); if (unlikely(ret)) { ehca_err(qp->ib_qp.device, "ehca_mmap_queue(sq) failed rc=%x qp_num=%x", diff --git a/drivers/infiniband/hw/ehca/hcp_if.c b/drivers/infiniband/hw/ehca/hcp_if.c index 4776a8b0fee..3394e05f4b4 100644 --- a/drivers/infiniband/hw/ehca/hcp_if.c +++ b/drivers/infiniband/hw/ehca/hcp_if.c @@ -501,8 +501,8 @@ u64 hipz_h_register_rpage_qp(const struct ipz_adapter_handle adapter_handle, return H_PARAMETER; } - return hipz_h_register_rpage(adapter_handle,pagesize,queue_type, - qp_handle.handle,logical_address_of_page, + return hipz_h_register_rpage(adapter_handle, pagesize, queue_type, + qp_handle.handle, logical_address_of_page, count); } @@ -522,9 +522,9 @@ u64 hipz_h_disable_and_get_wqe(const struct ipz_adapter_handle adapter_handle, qp_handle.handle, /* r6 */ 0, 0, 0, 0, 0, 0); if (log_addr_next_sq_wqe2processed) - *log_addr_next_sq_wqe2processed = (void*)outs[0]; + *log_addr_next_sq_wqe2processed = (void *)outs[0]; if (log_addr_next_rq_wqe2processed) - *log_addr_next_rq_wqe2processed = (void*)outs[1]; + *log_addr_next_rq_wqe2processed = (void *)outs[1]; return ret; } diff --git a/drivers/infiniband/hw/ehca/hcp_phyp.c b/drivers/infiniband/hw/ehca/hcp_phyp.c index 0b1a4772c78..214821095cb 100644 --- a/drivers/infiniband/hw/ehca/hcp_phyp.c +++ b/drivers/infiniband/hw/ehca/hcp_phyp.c @@ -50,7 +50,7 @@ int hcall_map_page(u64 physaddr, u64 *mapaddr) int hcall_unmap_page(u64 mapaddr) { - iounmap((volatile void __iomem*)mapaddr); + iounmap((volatile void __iomem *) mapaddr); return 0; } diff --git a/drivers/infiniband/hw/ehca/hipz_fns_core.h b/drivers/infiniband/hw/ehca/hipz_fns_core.h index 20898a15344..868735fd318 100644 --- a/drivers/infiniband/hw/ehca/hipz_fns_core.h +++ b/drivers/infiniband/hw/ehca/hipz_fns_core.h @@ -53,10 +53,10 @@ #define hipz_galpa_load_cq(gal, offset) \ hipz_galpa_load(gal, CQTEMM_OFFSET(offset)) -#define hipz_galpa_store_qp(gal,offset, value) \ +#define hipz_galpa_store_qp(gal, offset, value) \ hipz_galpa_store(gal, QPTEMM_OFFSET(offset), value) #define hipz_galpa_load_qp(gal, offset) \ - hipz_galpa_load(gal,QPTEMM_OFFSET(offset)) + hipz_galpa_load(gal, QPTEMM_OFFSET(offset)) static inline void hipz_update_sqa(struct ehca_qp *qp, u16 nr_wqes) { diff --git a/drivers/infiniband/hw/ehca/hipz_hw.h b/drivers/infiniband/hw/ehca/hipz_hw.h index dad6dea5636..d9739e55451 100644 --- a/drivers/infiniband/hw/ehca/hipz_hw.h +++ b/drivers/infiniband/hw/ehca/hipz_hw.h @@ -161,11 +161,11 @@ struct hipz_qptemm { /* 0x1000 */ }; -#define QPX_SQADDER EHCA_BMASK_IBM(48,63) -#define QPX_RQADDER EHCA_BMASK_IBM(48,63) -#define QPX_AAELOG_RESET_SRQ_LIMIT EHCA_BMASK_IBM(3,3) +#define QPX_SQADDER EHCA_BMASK_IBM(48, 63) +#define QPX_RQADDER EHCA_BMASK_IBM(48, 63) +#define QPX_AAELOG_RESET_SRQ_LIMIT EHCA_BMASK_IBM(3, 3) -#define QPTEMM_OFFSET(x) offsetof(struct hipz_qptemm,x) +#define QPTEMM_OFFSET(x) offsetof(struct hipz_qptemm, x) /* MRMWPT Entry Memory Map */ struct hipz_mrmwmm { @@ -187,7 +187,7 @@ struct hipz_mrmwmm { }; -#define MRMWMM_OFFSET(x) offsetof(struct hipz_mrmwmm,x) +#define MRMWMM_OFFSET(x) offsetof(struct hipz_mrmwmm, x) struct hipz_qpedmm { /* 0x00 */ @@ -238,7 +238,7 @@ struct hipz_qpedmm { u64 qpedx_rrva3; }; -#define QPEDMM_OFFSET(x) offsetof(struct hipz_qpedmm,x) +#define QPEDMM_OFFSET(x) offsetof(struct hipz_qpedmm, x) /* CQ Table Entry Memory Map */ struct hipz_cqtemm { @@ -263,12 +263,12 @@ struct hipz_cqtemm { /* 0x1000 */ }; -#define CQX_FEC_CQE_CNT EHCA_BMASK_IBM(32,63) -#define CQX_FECADDER EHCA_BMASK_IBM(32,63) -#define CQX_N0_GENERATE_SOLICITED_COMP_EVENT EHCA_BMASK_IBM(0,0) -#define CQX_N1_GENERATE_COMP_EVENT EHCA_BMASK_IBM(0,0) +#define CQX_FEC_CQE_CNT EHCA_BMASK_IBM(32, 63) +#define CQX_FECADDER EHCA_BMASK_IBM(32, 63) +#define CQX_N0_GENERATE_SOLICITED_COMP_EVENT EHCA_BMASK_IBM(0, 0) +#define CQX_N1_GENERATE_COMP_EVENT EHCA_BMASK_IBM(0, 0) -#define CQTEMM_OFFSET(x) offsetof(struct hipz_cqtemm,x) +#define CQTEMM_OFFSET(x) offsetof(struct hipz_cqtemm, x) /* EQ Table Entry Memory Map */ struct hipz_eqtemm { @@ -293,7 +293,7 @@ struct hipz_eqtemm { }; -#define EQTEMM_OFFSET(x) offsetof(struct hipz_eqtemm,x) +#define EQTEMM_OFFSET(x) offsetof(struct hipz_eqtemm, x) /* access control defines for MR/MW */ #define HIPZ_ACCESSCTRL_L_WRITE 0x00800000 diff --git a/drivers/infiniband/hw/ehca/ipz_pt_fn.c b/drivers/infiniband/hw/ehca/ipz_pt_fn.c index bf7a40088f6..9606f13ed09 100644 --- a/drivers/infiniband/hw/ehca/ipz_pt_fn.c +++ b/drivers/infiniband/hw/ehca/ipz_pt_fn.c @@ -114,7 +114,7 @@ int ipz_queue_ctor(struct ipz_queue *queue, */ f = 0; while (f < nr_of_pages) { - u8 *kpage = (u8*)get_zeroed_page(GFP_KERNEL); + u8 *kpage = (u8 *)get_zeroed_page(GFP_KERNEL); int k; if (!kpage) goto ipz_queue_ctor_exit0; /*NOMEM*/ diff --git a/drivers/infiniband/hw/ehca/ipz_pt_fn.h b/drivers/infiniband/hw/ehca/ipz_pt_fn.h index 007f0882fd4..39a4f64aff4 100644 --- a/drivers/infiniband/hw/ehca/ipz_pt_fn.h +++ b/drivers/infiniband/hw/ehca/ipz_pt_fn.h @@ -240,7 +240,7 @@ void *ipz_qeit_eq_get_inc(struct ipz_queue *queue); static inline void *ipz_eqit_eq_get_inc_valid(struct ipz_queue *queue) { void *ret = ipz_qeit_get(queue); - u32 qe = *(u8 *) ret; + u32 qe = *(u8 *)ret; if ((qe >> 7) != (queue->toggle_state & 1)) return NULL; ipz_qeit_eq_get_inc(queue); /* this is a good one */ @@ -250,7 +250,7 @@ static inline void *ipz_eqit_eq_get_inc_valid(struct ipz_queue *queue) static inline void *ipz_eqit_eq_peek_valid(struct ipz_queue *queue) { void *ret = ipz_qeit_get(queue); - u32 qe = *(u8 *) ret; + u32 qe = *(u8 *)ret; if ((qe >> 7) != (queue->toggle_state & 1)) return NULL; return ret; diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c index 9361f5ab8bd..09c5fd84b1e 100644 --- a/drivers/infiniband/hw/ipath/ipath_driver.c +++ b/drivers/infiniband/hw/ipath/ipath_driver.c @@ -1889,7 +1889,7 @@ void ipath_write_kreg_port(const struct ipath_devdata *dd, ipath_kreg regno, /* Below is "non-zero" to force override, but both actual LEDs are off */ #define LED_OVER_BOTH_OFF (8) -void ipath_run_led_override(unsigned long opaque) +static void ipath_run_led_override(unsigned long opaque) { struct ipath_devdata *dd = (struct ipath_devdata *)opaque; int timeoff; diff --git a/drivers/infiniband/hw/ipath/ipath_eeprom.c b/drivers/infiniband/hw/ipath/ipath_eeprom.c index 6b9147964a4..b4503e9c1e9 100644 --- a/drivers/infiniband/hw/ipath/ipath_eeprom.c +++ b/drivers/infiniband/hw/ipath/ipath_eeprom.c @@ -426,8 +426,8 @@ bail: * @buffer: data to write * @len: number of bytes to write */ -int ipath_eeprom_internal_write(struct ipath_devdata *dd, u8 eeprom_offset, - const void *buffer, int len) +static int ipath_eeprom_internal_write(struct ipath_devdata *dd, u8 eeprom_offset, + const void *buffer, int len) { u8 single_byte; int sub_len; diff --git a/drivers/infiniband/hw/ipath/ipath_intr.c b/drivers/infiniband/hw/ipath/ipath_intr.c index 47aa43428fb..1fd91c59f24 100644 --- a/drivers/infiniband/hw/ipath/ipath_intr.c +++ b/drivers/infiniband/hw/ipath/ipath_intr.c @@ -70,7 +70,7 @@ static void ipath_clrpiobuf(struct ipath_devdata *dd, u32 pnum) * If rewrite is true, and bits are set in the sendbufferror registers, * we'll write to the buffer, for error recovery on parity errors. */ -void ipath_disarm_senderrbufs(struct ipath_devdata *dd, int rewrite) +static void ipath_disarm_senderrbufs(struct ipath_devdata *dd, int rewrite) { u32 piobcnt; unsigned long sbuf[4]; diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h index 3105005fc9d..ace63ef78e6 100644 --- a/drivers/infiniband/hw/ipath/ipath_kernel.h +++ b/drivers/infiniband/hw/ipath/ipath_kernel.h @@ -776,7 +776,6 @@ void ipath_get_eeprom_info(struct ipath_devdata *); int ipath_update_eeprom_log(struct ipath_devdata *dd); void ipath_inc_eeprom_err(struct ipath_devdata *dd, u32 eidx, u32 incr); u64 ipath_snap_cntr(struct ipath_devdata *, ipath_creg); -void ipath_disarm_senderrbufs(struct ipath_devdata *, int); /* * Set LED override, only the two LSBs have "public" meaning, but @@ -820,7 +819,6 @@ static inline u64 ipath_mdio_req(int cmd, int dev, int reg, int data) #define IPATH_MDIO_CTRL_8355_REG_10 0x1D int ipath_get_user_pages(unsigned long, size_t, struct page **); -int ipath_get_user_pages_nocopy(unsigned long, struct page **); void ipath_release_user_pages(struct page **, size_t); void ipath_release_user_pages_on_close(struct page **, size_t); int ipath_eeprom_read(struct ipath_devdata *, u8, void *, int); diff --git a/drivers/infiniband/hw/ipath/ipath_ruc.c b/drivers/infiniband/hw/ipath/ipath_ruc.c index 85256747d8a..c69c2523944 100644 --- a/drivers/infiniband/hw/ipath/ipath_ruc.c +++ b/drivers/infiniband/hw/ipath/ipath_ruc.c @@ -507,7 +507,7 @@ static int want_buffer(struct ipath_devdata *dd) * * Called when we run out of PIO buffers. */ -void ipath_no_bufs_available(struct ipath_qp *qp, struct ipath_ibdev *dev) +static void ipath_no_bufs_available(struct ipath_qp *qp, struct ipath_ibdev *dev) { unsigned long flags; diff --git a/drivers/infiniband/hw/ipath/ipath_user_pages.c b/drivers/infiniband/hw/ipath/ipath_user_pages.c index 27034d38b3d..0190edc8044 100644 --- a/drivers/infiniband/hw/ipath/ipath_user_pages.c +++ b/drivers/infiniband/hw/ipath/ipath_user_pages.c @@ -171,32 +171,6 @@ int ipath_get_user_pages(unsigned long start_page, size_t num_pages, return ret; } -/** - * ipath_get_user_pages_nocopy - lock a single page for I/O and mark shared - * @start_page: the page to lock - * @p: the output page structure - * - * This is similar to ipath_get_user_pages, but it's always one page, and we - * mark the page as locked for I/O, and shared. This is used for the user - * process page that contains the destination address for the rcvhdrq tail - * update, so we need to have the vma. If we don't do this, the page can be - * taken away from us on fork, even if the child never touches it, and then - * the user process never sees the tail register updates. - */ -int ipath_get_user_pages_nocopy(unsigned long page, struct page **p) -{ - struct vm_area_struct *vma; - int ret; - - down_write(¤t->mm->mmap_sem); - - ret = __get_user_pages(page, 1, p, &vma); - - up_write(¤t->mm->mmap_sem); - - return ret; -} - void ipath_release_user_pages(struct page **p, size_t num_pages) { down_write(¤t->mm->mmap_sem); diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index 65f7181e9cf..16aa61fd808 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -488,7 +488,7 @@ bail:; * This is called from ipath_do_rcv_timer() at interrupt level to check for * QPs which need retransmits and to collect performance numbers. */ -void ipath_ib_timer(struct ipath_ibdev *dev) +static void ipath_ib_timer(struct ipath_ibdev *dev) { struct ipath_qp *resend = NULL; struct list_head *last; diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.h b/drivers/infiniband/hw/ipath/ipath_verbs.h index f3d1f2cee6f..9bbe81967f1 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.h +++ b/drivers/infiniband/hw/ipath/ipath_verbs.h @@ -782,8 +782,6 @@ void ipath_update_mmap_info(struct ipath_ibdev *dev, int ipath_mmap(struct ib_ucontext *context, struct vm_area_struct *vma); -void ipath_no_bufs_available(struct ipath_qp *qp, struct ipath_ibdev *dev); - void ipath_insert_rnr_queue(struct ipath_qp *qp); int ipath_get_rwqe(struct ipath_qp *qp, int wr_id_only); @@ -807,8 +805,6 @@ void ipath_ib_rcv(struct ipath_ibdev *, void *, void *, u32); int ipath_ib_piobufavail(struct ipath_ibdev *); -void ipath_ib_timer(struct ipath_ibdev *); - unsigned ipath_get_npkeys(struct ipath_devdata *); u32 ipath_get_cr_errpkey(struct ipath_devdata *); diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 40042184ad5..b5a24fbef70 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -1183,6 +1183,43 @@ static int mlx4_wq_overflow(struct mlx4_ib_wq *wq, int nreq, struct ib_cq *ib_cq return cur + nreq >= wq->max_post; } +static __always_inline void set_raddr_seg(struct mlx4_wqe_raddr_seg *rseg, + u64 remote_addr, u32 rkey) +{ + rseg->raddr = cpu_to_be64(remote_addr); + rseg->rkey = cpu_to_be32(rkey); + rseg->reserved = 0; +} + +static void set_atomic_seg(struct mlx4_wqe_atomic_seg *aseg, struct ib_send_wr *wr) +{ + if (wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP) { + aseg->swap_add = cpu_to_be64(wr->wr.atomic.swap); + aseg->compare = cpu_to_be64(wr->wr.atomic.compare_add); + } else { + aseg->swap_add = cpu_to_be64(wr->wr.atomic.compare_add); + aseg->compare = 0; + } + +} + +static void set_datagram_seg(struct mlx4_wqe_datagram_seg *dseg, + struct ib_send_wr *wr) +{ + memcpy(dseg->av, &to_mah(wr->wr.ud.ah)->av, sizeof (struct mlx4_av)); + dseg->dqpn = cpu_to_be32(wr->wr.ud.remote_qpn); + dseg->qkey = cpu_to_be32(wr->wr.ud.remote_qkey); + +} + +static void set_data_seg(struct mlx4_wqe_data_seg *dseg, + struct ib_sge *sg) +{ + dseg->byte_count = cpu_to_be32(sg->length); + dseg->lkey = cpu_to_be32(sg->lkey); + dseg->addr = cpu_to_be64(sg->addr); +} + int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, struct ib_send_wr **bad_wr) { @@ -1238,26 +1275,13 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, switch (wr->opcode) { case IB_WR_ATOMIC_CMP_AND_SWP: case IB_WR_ATOMIC_FETCH_AND_ADD: - ((struct mlx4_wqe_raddr_seg *) wqe)->raddr = - cpu_to_be64(wr->wr.atomic.remote_addr); - ((struct mlx4_wqe_raddr_seg *) wqe)->rkey = - cpu_to_be32(wr->wr.atomic.rkey); - ((struct mlx4_wqe_raddr_seg *) wqe)->reserved = 0; - + set_raddr_seg(wqe, wr->wr.atomic.remote_addr, + wr->wr.atomic.rkey); wqe += sizeof (struct mlx4_wqe_raddr_seg); - if (wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP) { - ((struct mlx4_wqe_atomic_seg *) wqe)->swap_add = - cpu_to_be64(wr->wr.atomic.swap); - ((struct mlx4_wqe_atomic_seg *) wqe)->compare = - cpu_to_be64(wr->wr.atomic.compare_add); - } else { - ((struct mlx4_wqe_atomic_seg *) wqe)->swap_add = - cpu_to_be64(wr->wr.atomic.compare_add); - ((struct mlx4_wqe_atomic_seg *) wqe)->compare = 0; - } - + set_atomic_seg(wqe, wr); wqe += sizeof (struct mlx4_wqe_atomic_seg); + size += (sizeof (struct mlx4_wqe_raddr_seg) + sizeof (struct mlx4_wqe_atomic_seg)) / 16; @@ -1266,15 +1290,10 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, case IB_WR_RDMA_READ: case IB_WR_RDMA_WRITE: case IB_WR_RDMA_WRITE_WITH_IMM: - ((struct mlx4_wqe_raddr_seg *) wqe)->raddr = - cpu_to_be64(wr->wr.rdma.remote_addr); - ((struct mlx4_wqe_raddr_seg *) wqe)->rkey = - cpu_to_be32(wr->wr.rdma.rkey); - ((struct mlx4_wqe_raddr_seg *) wqe)->reserved = 0; - + set_raddr_seg(wqe, wr->wr.rdma.remote_addr, + wr->wr.rdma.rkey); wqe += sizeof (struct mlx4_wqe_raddr_seg); size += sizeof (struct mlx4_wqe_raddr_seg) / 16; - break; default: @@ -1284,13 +1303,7 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, break; case IB_QPT_UD: - memcpy(((struct mlx4_wqe_datagram_seg *) wqe)->av, - &to_mah(wr->wr.ud.ah)->av, sizeof (struct mlx4_av)); - ((struct mlx4_wqe_datagram_seg *) wqe)->dqpn = - cpu_to_be32(wr->wr.ud.remote_qpn); - ((struct mlx4_wqe_datagram_seg *) wqe)->qkey = - cpu_to_be32(wr->wr.ud.remote_qkey); - + set_datagram_seg(wqe, wr); wqe += sizeof (struct mlx4_wqe_datagram_seg); size += sizeof (struct mlx4_wqe_datagram_seg) / 16; break; @@ -1313,12 +1326,7 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, } for (i = 0; i < wr->num_sge; ++i) { - ((struct mlx4_wqe_data_seg *) wqe)->byte_count = - cpu_to_be32(wr->sg_list[i].length); - ((struct mlx4_wqe_data_seg *) wqe)->lkey = - cpu_to_be32(wr->sg_list[i].lkey); - ((struct mlx4_wqe_data_seg *) wqe)->addr = - cpu_to_be64(wr->sg_list[i].addr); + set_data_seg(wqe, wr->sg_list + i); wqe += sizeof (struct mlx4_wqe_data_seg); size += sizeof (struct mlx4_wqe_data_seg) / 16; @@ -1498,7 +1506,7 @@ static int to_ib_qp_access_flags(int mlx4_flags) static void to_ib_ah_attr(struct mlx4_dev *dev, struct ib_ah_attr *ib_ah_attr, struct mlx4_qp_path *path) { - memset(ib_ah_attr, 0, sizeof *path); + memset(ib_ah_attr, 0, sizeof *ib_ah_attr); ib_ah_attr->port_num = path->sched_queue & 0x40 ? 2 : 1; if (ib_ah_attr->port_num == 0 || ib_ah_attr->port_num > dev->caps.num_ports) @@ -1515,7 +1523,7 @@ static void to_ib_ah_attr(struct mlx4_dev *dev, struct ib_ah_attr *ib_ah_attr, ib_ah_attr->grh.traffic_class = (be32_to_cpu(path->tclass_flowlabel) >> 20) & 0xff; ib_ah_attr->grh.flow_label = - be32_to_cpu(path->tclass_flowlabel) & 0xffffff; + be32_to_cpu(path->tclass_flowlabel) & 0xfffff; memcpy(ib_ah_attr->grh.dgid.raw, path->rgid, sizeof ib_ah_attr->grh.dgid.raw); } @@ -1560,7 +1568,10 @@ int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr } qp_attr->pkey_index = context.pri_path.pkey_index & 0x7f; - qp_attr->port_num = context.pri_path.sched_queue & 0x40 ? 2 : 1; + if (qp_attr->qp_state == IB_QPS_INIT) + qp_attr->port_num = qp->port; + else + qp_attr->port_num = context.pri_path.sched_queue & 0x40 ? 2 : 1; /* qp_attr->en_sqd_async_notify is only applicable in modify qp */ qp_attr->sq_draining = mlx4_state == MLX4_QP_STATE_SQ_DRAINING; @@ -1578,17 +1589,25 @@ int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr done: qp_attr->cur_qp_state = qp_attr->qp_state; + qp_attr->cap.max_recv_wr = qp->rq.wqe_cnt; + qp_attr->cap.max_recv_sge = qp->rq.max_gs; + if (!ibqp->uobject) { - qp_attr->cap.max_send_wr = qp->sq.wqe_cnt; - qp_attr->cap.max_recv_wr = qp->rq.wqe_cnt; - qp_attr->cap.max_send_sge = qp->sq.max_gs; - qp_attr->cap.max_recv_sge = qp->rq.max_gs; - qp_attr->cap.max_inline_data = (1 << qp->sq.wqe_shift) - - send_wqe_overhead(qp->ibqp.qp_type) - - sizeof (struct mlx4_wqe_inline_seg); - qp_init_attr->cap = qp_attr->cap; + qp_attr->cap.max_send_wr = qp->sq.wqe_cnt; + qp_attr->cap.max_send_sge = qp->sq.max_gs; + } else { + qp_attr->cap.max_send_wr = 0; + qp_attr->cap.max_send_sge = 0; } + /* + * We don't support inline sends for kernel QPs (yet), and we + * don't know what userspace's value should be. + */ + qp_attr->cap.max_inline_data = 0; + + qp_init_attr->cap = qp_attr->cap; + return 0; } diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c index aa563e61de6..76fed7545c5 100644 --- a/drivers/infiniband/hw/mthca/mthca_main.c +++ b/drivers/infiniband/hw/mthca/mthca_main.c @@ -67,7 +67,7 @@ MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero"); static int msi = 0; module_param(msi, int, 0444); -MODULE_PARM_DESC(msi, "attempt to use MSI if nonzero"); +MODULE_PARM_DESC(msi, "attempt to use MSI if nonzero (deprecated, use MSI-X instead)"); #else /* CONFIG_PCI_MSI */ @@ -1117,9 +1117,21 @@ static int __mthca_init_one(struct pci_dev *pdev, int hca_type) if (msi_x && !mthca_enable_msi_x(mdev)) mdev->mthca_flags |= MTHCA_FLAG_MSI_X; - if (msi && !(mdev->mthca_flags & MTHCA_FLAG_MSI_X) && - !pci_enable_msi(pdev)) - mdev->mthca_flags |= MTHCA_FLAG_MSI; + else if (msi) { + static int warned; + + if (!warned) { + printk(KERN_WARNING PFX "WARNING: MSI support will be " + "removed from the ib_mthca driver in January 2008.\n"); + printk(KERN_WARNING " If you are using MSI and cannot " + "switch to MSI-X, please tell " + "<general@lists.openfabrics.org>.\n"); + ++warned; + } + + if (!pci_enable_msi(pdev)) + mdev->mthca_flags |= MTHCA_FLAG_MSI; + } if (mthca_cmd_init(mdev)) { mthca_err(mdev, "Failed to init command interface, aborting.\n"); @@ -1135,7 +1147,7 @@ static int __mthca_init_one(struct pci_dev *pdev, int hca_type) goto err_cmd; if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) { - mthca_warn(mdev, "HCA FW version %d.%d.%3d is old (%d.%d.%3d is current).\n", + mthca_warn(mdev, "HCA FW version %d.%d.%03d is old (%d.%d.%03d is current).\n", (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff, (int) (mdev->fw_ver & 0xffff), (int) (mthca_hca_table[hca_type].latest_fw >> 32), diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c index 11f1d99db40..df01b2026a6 100644 --- a/drivers/infiniband/hw/mthca/mthca_qp.c +++ b/drivers/infiniband/hw/mthca/mthca_qp.c @@ -1578,6 +1578,45 @@ static inline int mthca_wq_overflow(struct mthca_wq *wq, int nreq, return cur + nreq >= wq->max; } +static __always_inline void set_raddr_seg(struct mthca_raddr_seg *rseg, + u64 remote_addr, u32 rkey) +{ + rseg->raddr = cpu_to_be64(remote_addr); + rseg->rkey = cpu_to_be32(rkey); + rseg->reserved = 0; +} + +static __always_inline void set_atomic_seg(struct mthca_atomic_seg *aseg, + struct ib_send_wr *wr) +{ + if (wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP) { + aseg->swap_add = cpu_to_be64(wr->wr.atomic.swap); + aseg->compare = cpu_to_be64(wr->wr.atomic.compare_add); + } else { + aseg->swap_add = cpu_to_be64(wr->wr.atomic.compare_add); + aseg->compare = 0; + } + +} + +static void set_tavor_ud_seg(struct mthca_tavor_ud_seg *useg, + struct ib_send_wr *wr) +{ + useg->lkey = cpu_to_be32(to_mah(wr->wr.ud.ah)->key); + useg->av_addr = cpu_to_be64(to_mah(wr->wr.ud.ah)->avdma); + useg->dqpn = cpu_to_be32(wr->wr.ud.remote_qpn); + useg->qkey = cpu_to_be32(wr->wr.ud.remote_qkey); + +} + +static void set_arbel_ud_seg(struct mthca_arbel_ud_seg *useg, + struct ib_send_wr *wr) +{ + memcpy(useg->av, to_mah(wr->wr.ud.ah)->av, MTHCA_AV_SIZE); + useg->dqpn = cpu_to_be32(wr->wr.ud.remote_qpn); + useg->qkey = cpu_to_be32(wr->wr.ud.remote_qkey); +} + int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, struct ib_send_wr **bad_wr) { @@ -1590,8 +1629,15 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, int nreq; int i; int size; - int size0 = 0; - u32 f0 = 0; + /* + * f0 and size0 are only used if nreq != 0, and they will + * always be initialized the first time through the main loop + * before nreq is incremented. So nreq cannot become non-zero + * without initializing f0 and size0, and they are in fact + * never used uninitialized. + */ + int uninitialized_var(size0); + u32 uninitialized_var(f0); int ind; u8 op0 = 0; @@ -1636,25 +1682,11 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, switch (wr->opcode) { case IB_WR_ATOMIC_CMP_AND_SWP: case IB_WR_ATOMIC_FETCH_AND_ADD: - ((struct mthca_raddr_seg *) wqe)->raddr = - cpu_to_be64(wr->wr.atomic.remote_addr); - ((struct mthca_raddr_seg *) wqe)->rkey = - cpu_to_be32(wr->wr.atomic.rkey); - ((struct mthca_raddr_seg *) wqe)->reserved = 0; - + set_raddr_seg(wqe, wr->wr.atomic.remote_addr, + wr->wr.atomic.rkey); wqe += sizeof (struct mthca_raddr_seg); - if (wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP) { - ((struct mthca_atomic_seg *) wqe)->swap_add = - cpu_to_be64(wr->wr.atomic.swap); - ((struct mthca_atomic_seg *) wqe)->compare = - cpu_to_be64(wr->wr.atomic.compare_add); - } else { - ((struct mthca_atomic_seg *) wqe)->swap_add = - cpu_to_be64(wr->wr.atomic.compare_add); - ((struct mthca_atomic_seg *) wqe)->compare = 0; - } - + set_atomic_seg(wqe, wr); wqe += sizeof (struct mthca_atomic_seg); size += (sizeof (struct mthca_raddr_seg) + sizeof (struct mthca_atomic_seg)) / 16; @@ -1663,12 +1695,9 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, case IB_WR_RDMA_WRITE: case IB_WR_RDMA_WRITE_WITH_IMM: case IB_WR_RDMA_READ: - ((struct mthca_raddr_seg *) wqe)->raddr = - cpu_to_be64(wr->wr.rdma.remote_addr); - ((struct mthca_raddr_seg *) wqe)->rkey = - cpu_to_be32(wr->wr.rdma.rkey); - ((struct mthca_raddr_seg *) wqe)->reserved = 0; - wqe += sizeof (struct mthca_raddr_seg); + set_raddr_seg(wqe, wr->wr.rdma.remote_addr, + wr->wr.rdma.rkey); + wqe += sizeof (struct mthca_raddr_seg); size += sizeof (struct mthca_raddr_seg) / 16; break; @@ -1683,12 +1712,9 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, switch (wr->opcode) { case IB_WR_RDMA_WRITE: case IB_WR_RDMA_WRITE_WITH_IMM: - ((struct mthca_raddr_seg *) wqe)->raddr = - cpu_to_be64(wr->wr.rdma.remote_addr); - ((struct mthca_raddr_seg *) wqe)->rkey = - cpu_to_be32(wr->wr.rdma.rkey); - ((struct mthca_raddr_seg *) wqe)->reserved = 0; - wqe += sizeof (struct mthca_raddr_seg); + set_raddr_seg(wqe, wr->wr.rdma.remote_addr, + wr->wr.rdma.rkey); + wqe += sizeof (struct mthca_raddr_seg); size += sizeof (struct mthca_raddr_seg) / 16; break; @@ -1700,16 +1726,8 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, break; case UD: - ((struct mthca_tavor_ud_seg *) wqe)->lkey = - cpu_to_be32(to_mah(wr->wr.ud.ah)->key); - ((struct mthca_tavor_ud_seg *) wqe)->av_addr = - cpu_to_be64(to_mah(wr->wr.ud.ah)->avdma); - ((struct mthca_tavor_ud_seg *) wqe)->dqpn = - cpu_to_be32(wr->wr.ud.remote_qpn); - ((struct mthca_tavor_ud_seg *) wqe)->qkey = - cpu_to_be32(wr->wr.ud.remote_qkey); - - wqe += sizeof (struct mthca_tavor_ud_seg); + set_tavor_ud_seg(wqe, wr); + wqe += sizeof (struct mthca_tavor_ud_seg); size += sizeof (struct mthca_tavor_ud_seg) / 16; break; @@ -1734,13 +1752,8 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, } for (i = 0; i < wr->num_sge; ++i) { - ((struct mthca_data_seg *) wqe)->byte_count = - cpu_to_be32(wr->sg_list[i].length); - ((struct mthca_data_seg *) wqe)->lkey = - cpu_to_be32(wr->sg_list[i].lkey); - ((struct mthca_data_seg *) wqe)->addr = - cpu_to_be64(wr->sg_list[i].addr); - wqe += sizeof (struct mthca_data_seg); + mthca_set_data_seg(wqe, wr->sg_list + i); + wqe += sizeof (struct mthca_data_seg); size += sizeof (struct mthca_data_seg) / 16; } @@ -1768,11 +1781,11 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, mthca_opcode[wr->opcode]); wmb(); ((struct mthca_next_seg *) prev_wqe)->ee_nds = - cpu_to_be32((size0 ? 0 : MTHCA_NEXT_DBD) | size | + cpu_to_be32((nreq ? 0 : MTHCA_NEXT_DBD) | size | ((wr->send_flags & IB_SEND_FENCE) ? MTHCA_NEXT_FENCE : 0)); - if (!size0) { + if (!nreq) { size0 = size; op0 = mthca_opcode[wr->opcode]; f0 = wr->send_flags & IB_SEND_FENCE ? @@ -1822,7 +1835,14 @@ int mthca_tavor_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, int nreq; int i; int size; - int size0 = 0; + /* + * size0 is only used if nreq != 0, and it will always be + * initialized the first time through the main loop before + * nreq is incremented. So nreq cannot become non-zero + * without initializing size0, and it is in fact never used + * uninitialized. + */ + int uninitialized_var(size0); int ind; void *wqe; void *prev_wqe; @@ -1863,13 +1883,8 @@ int mthca_tavor_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, } for (i = 0; i < wr->num_sge; ++i) { - ((struct mthca_data_seg *) wqe)->byte_count = - cpu_to_be32(wr->sg_list[i].length); - ((struct mthca_data_seg *) wqe)->lkey = - cpu_to_be32(wr->sg_list[i].lkey); - ((struct mthca_data_seg *) wqe)->addr = - cpu_to_be64(wr->sg_list[i].addr); - wqe += sizeof (struct mthca_data_seg); + mthca_set_data_seg(wqe, wr->sg_list + i); + wqe += sizeof (struct mthca_data_seg); size += sizeof (struct mthca_data_seg) / 16; } @@ -1881,7 +1896,7 @@ int mthca_tavor_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, ((struct mthca_next_seg *) prev_wqe)->ee_nds = cpu_to_be32(MTHCA_NEXT_DBD | size); - if (!size0) + if (!nreq) size0 = size; ++ind; @@ -1903,7 +1918,6 @@ int mthca_tavor_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, qp->rq.next_ind = ind; qp->rq.head += MTHCA_TAVOR_MAX_WQES_PER_RECV_DB; - size0 = 0; } } @@ -1945,8 +1959,15 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, int nreq; int i; int size; - int size0 = 0; - u32 f0 = 0; + /* + * f0 and size0 are only used if nreq != 0, and they will + * always be initialized the first time through the main loop + * before nreq is incremented. So nreq cannot become non-zero + * without initializing f0 and size0, and they are in fact + * never used uninitialized. + */ + int uninitialized_var(size0); + u32 uninitialized_var(f0); int ind; u8 op0 = 0; @@ -1966,7 +1987,6 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, doorbell[1] = cpu_to_be32((qp->qpn << 8) | size0); qp->sq.head += MTHCA_ARBEL_MAX_WQES_PER_SEND_DB; - size0 = 0; /* * Make sure that descriptors are written before @@ -2017,26 +2037,12 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, switch (wr->opcode) { case IB_WR_ATOMIC_CMP_AND_SWP: case IB_WR_ATOMIC_FETCH_AND_ADD: - ((struct mthca_raddr_seg *) wqe)->raddr = - cpu_to_be64(wr->wr.atomic.remote_addr); - ((struct mthca_raddr_seg *) wqe)->rkey = - cpu_to_be32(wr->wr.atomic.rkey); - ((struct mthca_raddr_seg *) wqe)->reserved = 0; - + set_raddr_seg(wqe, wr->wr.atomic.remote_addr, + wr->wr.atomic.rkey); wqe += sizeof (struct mthca_raddr_seg); - if (wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP) { - ((struct mthca_atomic_seg *) wqe)->swap_add = - cpu_to_be64(wr->wr.atomic.swap); - ((struct mthca_atomic_seg *) wqe)->compare = - cpu_to_be64(wr->wr.atomic.compare_add); - } else { - ((struct mthca_atomic_seg *) wqe)->swap_add = - cpu_to_be64(wr->wr.atomic.compare_add); - ((struct mthca_atomic_seg *) wqe)->compare = 0; - } - - wqe += sizeof (struct mthca_atomic_seg); + set_atomic_seg(wqe, wr); + wqe += sizeof (struct mthca_atomic_seg); size += (sizeof (struct mthca_raddr_seg) + sizeof (struct mthca_atomic_seg)) / 16; break; @@ -2044,12 +2050,9 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, case IB_WR_RDMA_READ: case IB_WR_RDMA_WRITE: case IB_WR_RDMA_WRITE_WITH_IMM: - ((struct mthca_raddr_seg *) wqe)->raddr = - cpu_to_be64(wr->wr.rdma.remote_addr); - ((struct mthca_raddr_seg *) wqe)->rkey = - cpu_to_be32(wr->wr.rdma.rkey); - ((struct mthca_raddr_seg *) wqe)->reserved = 0; - wqe += sizeof (struct mthca_raddr_seg); + set_raddr_seg(wqe, wr->wr.rdma.remote_addr, + wr->wr.rdma.rkey); + wqe += sizeof (struct mthca_raddr_seg); size += sizeof (struct mthca_raddr_seg) / 16; break; @@ -2064,12 +2067,9 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, switch (wr->opcode) { case IB_WR_RDMA_WRITE: case IB_WR_RDMA_WRITE_WITH_IMM: - ((struct mthca_raddr_seg *) wqe)->raddr = - cpu_to_be64(wr->wr.rdma.remote_addr); - ((struct mthca_raddr_seg *) wqe)->rkey = - cpu_to_be32(wr->wr.rdma.rkey); - ((struct mthca_raddr_seg *) wqe)->reserved = 0; - wqe += sizeof (struct mthca_raddr_seg); + set_raddr_seg(wqe, wr->wr.rdma.remote_addr, + wr->wr.rdma.rkey); + wqe += sizeof (struct mthca_raddr_seg); size += sizeof (struct mthca_raddr_seg) / 16; break; @@ -2081,14 +2081,8 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, break; case UD: - memcpy(((struct mthca_arbel_ud_seg *) wqe)->av, - to_mah(wr->wr.ud.ah)->av, MTHCA_AV_SIZE); - ((struct mthca_arbel_ud_seg *) wqe)->dqpn = - cpu_to_be32(wr->wr.ud.remote_qpn); - ((struct mthca_arbel_ud_seg *) wqe)->qkey = - cpu_to_be32(wr->wr.ud.remote_qkey); - - wqe += sizeof (struct mthca_arbel_ud_seg); + set_arbel_ud_seg(wqe, wr); + wqe += sizeof (struct mthca_arbel_ud_seg); size += sizeof (struct mthca_arbel_ud_seg) / 16; break; @@ -2113,13 +2107,8 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, } for (i = 0; i < wr->num_sge; ++i) { - ((struct mthca_data_seg *) wqe)->byte_count = - cpu_to_be32(wr->sg_list[i].length); - ((struct mthca_data_seg *) wqe)->lkey = - cpu_to_be32(wr->sg_list[i].lkey); - ((struct mthca_data_seg *) wqe)->addr = - cpu_to_be64(wr->sg_list[i].addr); - wqe += sizeof (struct mthca_data_seg); + mthca_set_data_seg(wqe, wr->sg_list + i); + wqe += sizeof (struct mthca_data_seg); size += sizeof (struct mthca_data_seg) / 16; } @@ -2151,7 +2140,7 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, ((wr->send_flags & IB_SEND_FENCE) ? MTHCA_NEXT_FENCE : 0)); - if (!size0) { + if (!nreq) { size0 = size; op0 = mthca_opcode[wr->opcode]; f0 = wr->send_flags & IB_SEND_FENCE ? @@ -2241,20 +2230,12 @@ int mthca_arbel_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, } for (i = 0; i < wr->num_sge; ++i) { - ((struct mthca_data_seg *) wqe)->byte_count = - cpu_to_be32(wr->sg_list[i].length); - ((struct mthca_data_seg *) wqe)->lkey = - cpu_to_be32(wr->sg_list[i].lkey); - ((struct mthca_data_seg *) wqe)->addr = - cpu_to_be64(wr->sg_list[i].addr); + mthca_set_data_seg(wqe, wr->sg_list + i); wqe += sizeof (struct mthca_data_seg); } - if (i < qp->rq.max_gs) { - ((struct mthca_data_seg *) wqe)->byte_count = 0; - ((struct mthca_data_seg *) wqe)->lkey = cpu_to_be32(MTHCA_INVAL_LKEY); - ((struct mthca_data_seg *) wqe)->addr = 0; - } + if (i < qp->rq.max_gs) + mthca_set_data_seg_inval(wqe); qp->wrid[ind] = wr->wr_id; diff --git a/drivers/infiniband/hw/mthca/mthca_srq.c b/drivers/infiniband/hw/mthca/mthca_srq.c index b8f05a52667..88d219e730a 100644 --- a/drivers/infiniband/hw/mthca/mthca_srq.c +++ b/drivers/infiniband/hw/mthca/mthca_srq.c @@ -543,20 +543,12 @@ int mthca_tavor_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr, } for (i = 0; i < wr->num_sge; ++i) { - ((struct mthca_data_seg *) wqe)->byte_count = - cpu_to_be32(wr->sg_list[i].length); - ((struct mthca_data_seg *) wqe)->lkey = - cpu_to_be32(wr->sg_list[i].lkey); - ((struct mthca_data_seg *) wqe)->addr = - cpu_to_be64(wr->sg_list[i].addr); + mthca_set_data_seg(wqe, wr->sg_list + i); wqe += sizeof (struct mthca_data_seg); } - if (i < srq->max_gs) { - ((struct mthca_data_seg *) wqe)->byte_count = 0; - ((struct mthca_data_seg *) wqe)->lkey = cpu_to_be32(MTHCA_INVAL_LKEY); - ((struct mthca_data_seg *) wqe)->addr = 0; - } + if (i < srq->max_gs) + mthca_set_data_seg_inval(wqe); ((struct mthca_next_seg *) prev_wqe)->nda_op = cpu_to_be32((ind << srq->wqe_shift) | 1); @@ -662,20 +654,12 @@ int mthca_arbel_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr, } for (i = 0; i < wr->num_sge; ++i) { - ((struct mthca_data_seg *) wqe)->byte_count = - cpu_to_be32(wr->sg_list[i].length); - ((struct mthca_data_seg *) wqe)->lkey = - cpu_to_be32(wr->sg_list[i].lkey); - ((struct mthca_data_seg *) wqe)->addr = - cpu_to_be64(wr->sg_list[i].addr); + mthca_set_data_seg(wqe, wr->sg_list + i); wqe += sizeof (struct mthca_data_seg); } - if (i < srq->max_gs) { - ((struct mthca_data_seg *) wqe)->byte_count = 0; - ((struct mthca_data_seg *) wqe)->lkey = cpu_to_be32(MTHCA_INVAL_LKEY); - ((struct mthca_data_seg *) wqe)->addr = 0; - } + if (i < srq->max_gs) + mthca_set_data_seg_inval(wqe); srq->wrid[ind] = wr->wr_id; srq->first_free = next_ind; diff --git a/drivers/infiniband/hw/mthca/mthca_wqe.h b/drivers/infiniband/hw/mthca/mthca_wqe.h index e7d2c1e8619..f6a66fe78e4 100644 --- a/drivers/infiniband/hw/mthca/mthca_wqe.h +++ b/drivers/infiniband/hw/mthca/mthca_wqe.h @@ -113,4 +113,19 @@ struct mthca_mlx_seg { __be16 vcrc; }; +static __always_inline void mthca_set_data_seg(struct mthca_data_seg *dseg, + struct ib_sge *sg) +{ + dseg->byte_count = cpu_to_be32(sg->length); + dseg->lkey = cpu_to_be32(sg->lkey); + dseg->addr = cpu_to_be64(sg->addr); +} + +static __always_inline void mthca_set_data_seg_inval(struct mthca_data_seg *dseg) +{ + dseg->byte_count = 0; + dseg->lkey = cpu_to_be32(MTHCA_INVAL_LKEY); + dseg->addr = 0; +} + #endif /* MTHCA_WQE_H */ diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h index e2353701e8b..1ee867b1b34 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.h +++ b/drivers/infiniband/ulp/iser/iscsi_iser.h @@ -310,8 +310,6 @@ int iser_conn_init(struct iser_conn **ib_conn); void iser_conn_terminate(struct iser_conn *ib_conn); -void iser_conn_release(struct iser_conn *ib_conn); - void iser_rcv_completion(struct iser_desc *desc, unsigned long dto_xfer_len); @@ -329,9 +327,6 @@ void iser_reg_single(struct iser_device *device, struct iser_regd_buf *regd_buf, enum dma_data_direction direction); -int iser_start_rdma_unaligned_sg(struct iscsi_iser_cmd_task *ctask, - enum iser_data_dir cmd_dir); - void iser_finalize_rdma_unaligned_sg(struct iscsi_iser_cmd_task *ctask, enum iser_data_dir cmd_dir); diff --git a/drivers/infiniband/ulp/iser/iser_memory.c b/drivers/infiniband/ulp/iser/iser_memory.c index fc9f1fd0ae5..36cdf77ae92 100644 --- a/drivers/infiniband/ulp/iser/iser_memory.c +++ b/drivers/infiniband/ulp/iser/iser_memory.c @@ -103,8 +103,8 @@ void iser_reg_single(struct iser_device *device, /** * iser_start_rdma_unaligned_sg */ -int iser_start_rdma_unaligned_sg(struct iscsi_iser_cmd_task *iser_ctask, - enum iser_data_dir cmd_dir) +static int iser_start_rdma_unaligned_sg(struct iscsi_iser_cmd_task *iser_ctask, + enum iser_data_dir cmd_dir) { int dma_nents; struct ib_device *dev; diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c index 2044de1164a..d42ec0156ee 100644 --- a/drivers/infiniband/ulp/iser/iser_verbs.c +++ b/drivers/infiniband/ulp/iser/iser_verbs.c @@ -311,6 +311,29 @@ static int iser_conn_state_comp_exch(struct iser_conn *ib_conn, } /** + * Frees all conn objects and deallocs conn descriptor + */ +static void iser_conn_release(struct iser_conn *ib_conn) +{ + struct iser_device *device = ib_conn->device; + + BUG_ON(ib_conn->state != ISER_CONN_DOWN); + + mutex_lock(&ig.connlist_mutex); + list_del(&ib_conn->conn_list); + mutex_unlock(&ig.connlist_mutex); + + iser_free_ib_conn_res(ib_conn); + ib_conn->device = NULL; + /* on EVENT_ADDR_ERROR there's no device yet for this conn */ + if (device != NULL) + iser_device_try_release(device); + if (ib_conn->iser_conn) + ib_conn->iser_conn->ib_conn = NULL; + kfree(ib_conn); +} + +/** * triggers start of the disconnect procedures and wait for them to be done */ void iser_conn_terminate(struct iser_conn *ib_conn) @@ -550,30 +573,6 @@ connect_failure: } /** - * Frees all conn objects and deallocs conn descriptor - */ -void iser_conn_release(struct iser_conn *ib_conn) -{ - struct iser_device *device = ib_conn->device; - - BUG_ON(ib_conn->state != ISER_CONN_DOWN); - - mutex_lock(&ig.connlist_mutex); - list_del(&ib_conn->conn_list); - mutex_unlock(&ig.connlist_mutex); - - iser_free_ib_conn_res(ib_conn); - ib_conn->device = NULL; - /* on EVENT_ADDR_ERROR there's no device yet for this conn */ - if (device != NULL) - iser_device_try_release(device); - if (ib_conn->iser_conn) - ib_conn->iser_conn->ib_conn = NULL; - kfree(ib_conn); -} - - -/** * iser_reg_page_vec - Register physical memory * * returns: 0 on success, errno code on failure diff --git a/drivers/net/mlx4/catas.c b/drivers/net/mlx4/catas.c index 1bb088aeaf7..6b32ec94b3a 100644 --- a/drivers/net/mlx4/catas.c +++ b/drivers/net/mlx4/catas.c @@ -30,41 +30,133 @@ * SOFTWARE. */ +#include <linux/workqueue.h> + #include "mlx4.h" -void mlx4_handle_catas_err(struct mlx4_dev *dev) +enum { + MLX4_CATAS_POLL_INTERVAL = 5 * HZ, +}; + +static DEFINE_SPINLOCK(catas_lock); + +static LIST_HEAD(catas_list); +static struct workqueue_struct *catas_wq; +static struct work_struct catas_work; + +static int internal_err_reset = 1; +module_param(internal_err_reset, int, 0644); +MODULE_PARM_DESC(internal_err_reset, + "Reset device on internal errors if non-zero (default 1)"); + +static void dump_err_buf(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); int i; - mlx4_err(dev, "Catastrophic error detected:\n"); + mlx4_err(dev, "Internal error detected:\n"); for (i = 0; i < priv->fw.catas_size; ++i) mlx4_err(dev, " buf[%02x]: %08x\n", i, swab32(readl(priv->catas_err.map + i))); +} - mlx4_dispatch_event(dev, MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR, 0, 0); +static void poll_catas(unsigned long dev_ptr) +{ + struct mlx4_dev *dev = (struct mlx4_dev *) dev_ptr; + struct mlx4_priv *priv = mlx4_priv(dev); + + if (readl(priv->catas_err.map)) { + dump_err_buf(dev); + + mlx4_dispatch_event(dev, MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR, 0, 0); + + if (internal_err_reset) { + spin_lock(&catas_lock); + list_add(&priv->catas_err.list, &catas_list); + spin_unlock(&catas_lock); + + queue_work(catas_wq, &catas_work); + } + } else + mod_timer(&priv->catas_err.timer, + round_jiffies(jiffies + MLX4_CATAS_POLL_INTERVAL)); } -void mlx4_map_catas_buf(struct mlx4_dev *dev) +static void catas_reset(struct work_struct *work) +{ + struct mlx4_priv *priv, *tmppriv; + struct mlx4_dev *dev; + + LIST_HEAD(tlist); + int ret; + + spin_lock_irq(&catas_lock); + list_splice_init(&catas_list, &tlist); + spin_unlock_irq(&catas_lock); + + list_for_each_entry_safe(priv, tmppriv, &tlist, catas_err.list) { + ret = mlx4_restart_one(priv->dev.pdev); + dev = &priv->dev; + if (ret) + mlx4_err(dev, "Reset failed (%d)\n", ret); + else + mlx4_dbg(dev, "Reset succeeded\n"); + } +} + +void mlx4_start_catas_poll(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); unsigned long addr; + INIT_LIST_HEAD(&priv->catas_err.list); + init_timer(&priv->catas_err.timer); + priv->catas_err.map = NULL; + addr = pci_resource_start(dev->pdev, priv->fw.catas_bar) + priv->fw.catas_offset; priv->catas_err.map = ioremap(addr, priv->fw.catas_size * 4); - if (!priv->catas_err.map) - mlx4_warn(dev, "Failed to map catastrophic error buffer at 0x%lx\n", + if (!priv->catas_err.map) { + mlx4_warn(dev, "Failed to map internal error buffer at 0x%lx\n", addr); + return; + } + priv->catas_err.timer.data = (unsigned long) dev; + priv->catas_err.timer.function = poll_catas; + priv->catas_err.timer.expires = + round_jiffies(jiffies + MLX4_CATAS_POLL_INTERVAL); + add_timer(&priv->catas_err.timer); } -void mlx4_unmap_catas_buf(struct mlx4_dev *dev) +void mlx4_stop_catas_poll(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); + del_timer_sync(&priv->catas_err.timer); + if (priv->catas_err.map) iounmap(priv->catas_err.map); + + spin_lock_irq(&catas_lock); + list_del(&priv->catas_err.list); + spin_unlock_irq(&catas_lock); +} + +int __init mlx4_catas_init(void) +{ + INIT_WORK(&catas_work, catas_reset); + + catas_wq = create_singlethread_workqueue("mlx4_err"); + if (!catas_wq) + return -ENOMEM; + + return 0; +} + +void mlx4_catas_cleanup(void) +{ + destroy_workqueue(catas_wq); } diff --git a/drivers/net/mlx4/eq.c b/drivers/net/mlx4/eq.c index 27a82cecd69..2095c843fa1 100644 --- a/drivers/net/mlx4/eq.c +++ b/drivers/net/mlx4/eq.c @@ -89,14 +89,12 @@ struct mlx4_eq_context { (1ull << MLX4_EVENT_TYPE_PATH_MIG_FAILED) | \ (1ull << MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR) | \ (1ull << MLX4_EVENT_TYPE_WQ_ACCESS_ERROR) | \ - (1ull << MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR) | \ (1ull << MLX4_EVENT_TYPE_PORT_CHANGE) | \ (1ull << MLX4_EVENT_TYPE_ECC_DETECT) | \ (1ull << MLX4_EVENT_TYPE_SRQ_CATAS_ERROR) | \ (1ull << MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE) | \ (1ull << MLX4_EVENT_TYPE_SRQ_LIMIT) | \ (1ull << MLX4_EVENT_TYPE_CMD)) -#define MLX4_CATAS_EVENT_MASK (1ull << MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR) struct mlx4_eqe { u8 reserved1; @@ -264,7 +262,7 @@ static irqreturn_t mlx4_interrupt(int irq, void *dev_ptr) writel(priv->eq_table.clr_mask, priv->eq_table.clr_int); - for (i = 0; i < MLX4_EQ_CATAS; ++i) + for (i = 0; i < MLX4_NUM_EQ; ++i) work |= mlx4_eq_int(dev, &priv->eq_table.eq[i]); return IRQ_RETVAL(work); @@ -281,14 +279,6 @@ static irqreturn_t mlx4_msi_x_interrupt(int irq, void *eq_ptr) return IRQ_HANDLED; } -static irqreturn_t mlx4_catas_interrupt(int irq, void *dev_ptr) -{ - mlx4_handle_catas_err(dev_ptr); - - /* MSI-X vectors always belong to us */ - return IRQ_HANDLED; -} - static int mlx4_MAP_EQ(struct mlx4_dev *dev, u64 event_mask, int unmap, int eq_num) { @@ -490,11 +480,9 @@ static void mlx4_free_irqs(struct mlx4_dev *dev) if (eq_table->have_irq) free_irq(dev->pdev->irq, dev); - for (i = 0; i < MLX4_EQ_CATAS; ++i) + for (i = 0; i < MLX4_NUM_EQ; ++i) if (eq_table->eq[i].have_irq) free_irq(eq_table->eq[i].irq, eq_table->eq + i); - if (eq_table->eq[MLX4_EQ_CATAS].have_irq) - free_irq(eq_table->eq[MLX4_EQ_CATAS].irq, dev); } static int __devinit mlx4_map_clr_int(struct mlx4_dev *dev) @@ -598,32 +586,19 @@ int __devinit mlx4_init_eq_table(struct mlx4_dev *dev) if (dev->flags & MLX4_FLAG_MSI_X) { static const char *eq_name[] = { [MLX4_EQ_COMP] = DRV_NAME " (comp)", - [MLX4_EQ_ASYNC] = DRV_NAME " (async)", - [MLX4_EQ_CATAS] = DRV_NAME " (catas)" + [MLX4_EQ_ASYNC] = DRV_NAME " (async)" }; - err = mlx4_create_eq(dev, 1, MLX4_EQ_CATAS, - &priv->eq_table.eq[MLX4_EQ_CATAS]); - if (err) - goto err_out_async; - - for (i = 0; i < MLX4_EQ_CATAS; ++i) { + for (i = 0; i < MLX4_NUM_EQ; ++i) { err = request_irq(priv->eq_table.eq[i].irq, mlx4_msi_x_interrupt, 0, eq_name[i], priv->eq_table.eq + i); if (err) - goto err_out_catas; + goto err_out_async; priv->eq_table.eq[i].have_irq = 1; } - err = request_irq(priv->eq_table.eq[MLX4_EQ_CATAS].irq, - mlx4_catas_interrupt, 0, - eq_name[MLX4_EQ_CATAS], dev); - if (err) - goto err_out_catas; - - priv->eq_table.eq[MLX4_EQ_CATAS].have_irq = 1; } else { err = request_irq(dev->pdev->irq, mlx4_interrupt, IRQF_SHARED, DRV_NAME, dev); @@ -639,22 +614,11 @@ int __devinit mlx4_init_eq_table(struct mlx4_dev *dev) mlx4_warn(dev, "MAP_EQ for async EQ %d failed (%d)\n", priv->eq_table.eq[MLX4_EQ_ASYNC].eqn, err); - for (i = 0; i < MLX4_EQ_CATAS; ++i) + for (i = 0; i < MLX4_NUM_EQ; ++i) eq_set_ci(&priv->eq_table.eq[i], 1); - if (dev->flags & MLX4_FLAG_MSI_X) { - err = mlx4_MAP_EQ(dev, MLX4_CATAS_EVENT_MASK, 0, - priv->eq_table.eq[MLX4_EQ_CATAS].eqn); - if (err) - mlx4_warn(dev, "MAP_EQ for catas EQ %d failed (%d)\n", - priv->eq_table.eq[MLX4_EQ_CATAS].eqn, err); - } - return 0; -err_out_catas: - mlx4_free_eq(dev, &priv->eq_table.eq[MLX4_EQ_CATAS]); - err_out_async: mlx4_free_eq(dev, &priv->eq_table.eq[MLX4_EQ_ASYNC]); @@ -675,19 +639,13 @@ void mlx4_cleanup_eq_table(struct mlx4_dev *dev) struct mlx4_priv *priv = mlx4_priv(dev); int i; - if (dev->flags & MLX4_FLAG_MSI_X) - mlx4_MAP_EQ(dev, MLX4_CATAS_EVENT_MASK, 1, - priv->eq_table.eq[MLX4_EQ_CATAS].eqn); - mlx4_MAP_EQ(dev, MLX4_ASYNC_EVENT_MASK, 1, priv->eq_table.eq[MLX4_EQ_ASYNC].eqn); mlx4_free_irqs(dev); - for (i = 0; i < MLX4_EQ_CATAS; ++i) + for (i = 0; i < MLX4_NUM_EQ; ++i) mlx4_free_eq(dev, &priv->eq_table.eq[i]); - if (dev->flags & MLX4_FLAG_MSI_X) - mlx4_free_eq(dev, &priv->eq_table.eq[MLX4_EQ_CATAS]); mlx4_unmap_clr_int(dev); diff --git a/drivers/net/mlx4/intf.c b/drivers/net/mlx4/intf.c index 9ae951bf6aa..be5d9e90ccf 100644 --- a/drivers/net/mlx4/intf.c +++ b/drivers/net/mlx4/intf.c @@ -142,6 +142,7 @@ int mlx4_register_device(struct mlx4_dev *dev) mlx4_add_device(intf, priv); mutex_unlock(&intf_mutex); + mlx4_start_catas_poll(dev); return 0; } @@ -151,6 +152,7 @@ void mlx4_unregister_device(struct mlx4_dev *dev) struct mlx4_priv *priv = mlx4_priv(dev); struct mlx4_interface *intf; + mlx4_stop_catas_poll(dev); mutex_lock(&intf_mutex); list_for_each_entry(intf, &intf_list, list) diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c index a4f2e0475a7..4dc9dc19b71 100644 --- a/drivers/net/mlx4/main.c +++ b/drivers/net/mlx4/main.c @@ -78,7 +78,7 @@ static const char mlx4_version[] __devinitdata = static struct mlx4_profile default_profile = { .num_qp = 1 << 16, .num_srq = 1 << 16, - .rdmarc_per_qp = 4, + .rdmarc_per_qp = 1 << 4, .num_cq = 1 << 16, .num_mcg = 1 << 13, .num_mpt = 1 << 17, @@ -583,13 +583,11 @@ static int __devinit mlx4_setup_hca(struct mlx4_dev *dev) goto err_pd_table_free; } - mlx4_map_catas_buf(dev); - err = mlx4_init_eq_table(dev); if (err) { mlx4_err(dev, "Failed to initialize " "event queue table, aborting.\n"); - goto err_catas_buf; + goto err_mr_table_free; } err = mlx4_cmd_use_events(dev); @@ -659,8 +657,7 @@ err_cmd_poll: err_eq_table_free: mlx4_cleanup_eq_table(dev); -err_catas_buf: - mlx4_unmap_catas_buf(dev); +err_mr_table_free: mlx4_cleanup_mr_table(dev); err_pd_table_free: @@ -836,9 +833,6 @@ err_cleanup: mlx4_cleanup_cq_table(dev); mlx4_cmd_use_polling(dev); mlx4_cleanup_eq_table(dev); - - mlx4_unmap_catas_buf(dev); - mlx4_cleanup_mr_table(dev); mlx4_cleanup_pd_table(dev); mlx4_cleanup_uar_table(dev); @@ -885,9 +879,6 @@ static void __devexit mlx4_remove_one(struct pci_dev *pdev) mlx4_cleanup_cq_table(dev); mlx4_cmd_use_polling(dev); mlx4_cleanup_eq_table(dev); - - mlx4_unmap_catas_buf(dev); - mlx4_cleanup_mr_table(dev); mlx4_cleanup_pd_table(dev); @@ -908,6 +899,12 @@ static void __devexit mlx4_remove_one(struct pci_dev *pdev) } } +int mlx4_restart_one(struct pci_dev *pdev) +{ + mlx4_remove_one(pdev); + return mlx4_init_one(pdev, NULL); +} + static struct pci_device_id mlx4_pci_table[] = { { PCI_VDEVICE(MELLANOX, 0x6340) }, /* MT25408 "Hermon" SDR */ { PCI_VDEVICE(MELLANOX, 0x634a) }, /* MT25408 "Hermon" DDR */ @@ -930,6 +927,10 @@ static int __init mlx4_init(void) { int ret; + ret = mlx4_catas_init(); + if (ret) + return ret; + ret = pci_register_driver(&mlx4_driver); return ret < 0 ? ret : 0; } @@ -937,6 +938,7 @@ static int __init mlx4_init(void) static void __exit mlx4_cleanup(void) { pci_unregister_driver(&mlx4_driver); + mlx4_catas_cleanup(); } module_init(mlx4_init); diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h index d9c91a71fc8..be304a7c2c9 100644 --- a/drivers/net/mlx4/mlx4.h +++ b/drivers/net/mlx4/mlx4.h @@ -39,6 +39,7 @@ #include <linux/mutex.h> #include <linux/radix-tree.h> +#include <linux/timer.h> #include <linux/mlx4/device.h> #include <linux/mlx4/doorbell.h> @@ -67,7 +68,6 @@ enum { enum { MLX4_EQ_ASYNC, MLX4_EQ_COMP, - MLX4_EQ_CATAS, MLX4_NUM_EQ }; @@ -248,7 +248,8 @@ struct mlx4_mcg_table { struct mlx4_catas_err { u32 __iomem *map; - int size; + struct timer_list timer; + struct list_head list; }; struct mlx4_priv { @@ -311,9 +312,11 @@ void mlx4_cleanup_qp_table(struct mlx4_dev *dev); void mlx4_cleanup_srq_table(struct mlx4_dev *dev); void mlx4_cleanup_mcg_table(struct mlx4_dev *dev); -void mlx4_map_catas_buf(struct mlx4_dev *dev); -void mlx4_unmap_catas_buf(struct mlx4_dev *dev); - +void mlx4_start_catas_poll(struct mlx4_dev *dev); +void mlx4_stop_catas_poll(struct mlx4_dev *dev); +int mlx4_catas_init(void); +void mlx4_catas_cleanup(void); +int mlx4_restart_one(struct pci_dev *pdev); int mlx4_register_device(struct mlx4_dev *dev); void mlx4_unregister_device(struct mlx4_dev *dev); void mlx4_dispatch_event(struct mlx4_dev *dev, enum mlx4_event type, diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index 143c6efc478..a99607142fc 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -1127,6 +1127,34 @@ static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, #endif +/************************ runtime PM support ***************************/ + +static int pcmcia_dev_suspend(struct device *dev, pm_message_t state); +static int pcmcia_dev_resume(struct device *dev); + +static int runtime_suspend(struct device *dev) +{ + int rc; + + down(&dev->sem); + rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND); + up(&dev->sem); + if (!rc) + dev->power.power_state.event = PM_EVENT_SUSPEND; + return rc; +} + +static void runtime_resume(struct device *dev) +{ + int rc; + + down(&dev->sem); + rc = pcmcia_dev_resume(dev); + up(&dev->sem); + if (!rc) + dev->power.power_state.event = PM_EVENT_ON; +} + /************************ per-device sysfs output ***************************/ #define pcmcia_device_attr(field, test, format) \ @@ -1173,9 +1201,9 @@ static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute return -EINVAL; if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) - ret = dpm_runtime_suspend(dev, PMSG_SUSPEND); + ret = runtime_suspend(dev); else if (p_dev->suspended && !strncmp(buf, "on", 2)) - dpm_runtime_resume(dev); + runtime_resume(dev); return ret ? ret : count; } @@ -1312,10 +1340,10 @@ static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) struct pcmcia_socket *skt = _data; struct pcmcia_device *p_dev = to_pcmcia_dev(dev); - if (p_dev->socket != skt) + if (p_dev->socket != skt || p_dev->suspended) return 0; - return dpm_runtime_suspend(dev, PMSG_SUSPEND); + return runtime_suspend(dev); } static int pcmcia_bus_resume_callback(struct device *dev, void * _data) @@ -1323,10 +1351,10 @@ static int pcmcia_bus_resume_callback(struct device *dev, void * _data) struct pcmcia_socket *skt = _data; struct pcmcia_device *p_dev = to_pcmcia_dev(dev); - if (p_dev->socket != skt) + if (p_dev->socket != skt || !p_dev->suspended) return 0; - dpm_runtime_resume(dev); + runtime_resume(dev); return 0; } diff --git a/drivers/uio/Kconfig b/drivers/uio/Kconfig new file mode 100644 index 00000000000..b778ed71f63 --- /dev/null +++ b/drivers/uio/Kconfig @@ -0,0 +1,29 @@ +menu "Userspace I/O" + depends on !S390 + +config UIO + tristate "Userspace I/O drivers" + default n + help + Enable this to allow the userspace driver core code to be + built. This code allows userspace programs easy access to + kernel interrupts and memory locations, allowing some drivers + to be written in userspace. Note that a small kernel driver + is also required for interrupt handling to work properly. + + If you don't know what to do here, say N. + +config UIO_CIF + tristate "generic Hilscher CIF Card driver" + depends on UIO && PCI + default n + help + Driver for Hilscher CIF DeviceNet and Profibus cards. This + driver requires a userspace component that handles all of the + heavy lifting and can be found at: + http://www.osadl.org/projects/downloads/UIO/user/cif-* + + To compile this driver as a module, choose M here: the module + will be called uio_cif. + +endmenu diff --git a/drivers/uio/Makefile b/drivers/uio/Makefile new file mode 100644 index 00000000000..7fecfb459da --- /dev/null +++ b/drivers/uio/Makefile @@ -0,0 +1,2 @@ +obj-$(CONFIG_UIO) += uio.o +obj-$(CONFIG_UIO_CIF) += uio_cif.o diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c new file mode 100644 index 00000000000..865f32b63b5 --- /dev/null +++ b/drivers/uio/uio.c @@ -0,0 +1,701 @@ +/* + * drivers/uio/uio.c + * + * Copyright(C) 2005, Benedikt Spranger <b.spranger@linutronix.de> + * Copyright(C) 2005, Thomas Gleixner <tglx@linutronix.de> + * Copyright(C) 2006, Hans J. Koch <hjk@linutronix.de> + * Copyright(C) 2006, Greg Kroah-Hartman <greg@kroah.com> + * + * Userspace IO + * + * Base Functions + * + * Licensed under the GPLv2 only. + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/poll.h> +#include <linux/device.h> +#include <linux/mm.h> +#include <linux/idr.h> +#include <linux/string.h> +#include <linux/kobject.h> +#include <linux/uio_driver.h> + +#define UIO_MAX_DEVICES 255 + +struct uio_device { + struct module *owner; + struct device *dev; + int minor; + atomic_t event; + struct fasync_struct *async_queue; + wait_queue_head_t wait; + int vma_count; + struct uio_info *info; + struct kset map_attr_kset; +}; + +static int uio_major; +static DEFINE_IDR(uio_idr); +static struct file_operations uio_fops; + +/* UIO class infrastructure */ +static struct uio_class { + struct kref kref; + struct class *class; +} *uio_class; + +/* + * attributes + */ + +static struct attribute attr_addr = { + .name = "addr", + .mode = S_IRUGO, +}; + +static struct attribute attr_size = { + .name = "size", + .mode = S_IRUGO, +}; + +static struct attribute* map_attrs[] = { + &attr_addr, &attr_size, NULL +}; + +static ssize_t map_attr_show(struct kobject *kobj, struct attribute *attr, + char *buf) +{ + struct uio_mem *mem = container_of(kobj, struct uio_mem, kobj); + + if (strncmp(attr->name,"addr",4) == 0) + return sprintf(buf, "0x%lx\n", mem->addr); + + if (strncmp(attr->name,"size",4) == 0) + return sprintf(buf, "0x%lx\n", mem->size); + + return -ENODEV; +} + +static void map_attr_release(struct kobject *kobj) +{ + /* TODO ??? */ +} + +static struct sysfs_ops map_attr_ops = { + .show = map_attr_show, +}; + +static struct kobj_type map_attr_type = { + .release = map_attr_release, + .sysfs_ops = &map_attr_ops, + .default_attrs = map_attrs, +}; + +static ssize_t show_name(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct uio_device *idev = dev_get_drvdata(dev); + if (idev) + return sprintf(buf, "%s\n", idev->info->name); + else + return -ENODEV; +} +static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); + +static ssize_t show_version(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct uio_device *idev = dev_get_drvdata(dev); + if (idev) + return sprintf(buf, "%s\n", idev->info->version); + else + return -ENODEV; +} +static DEVICE_ATTR(version, S_IRUGO, show_version, NULL); + +static ssize_t show_event(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct uio_device *idev = dev_get_drvdata(dev); + if (idev) + return sprintf(buf, "%u\n", + (unsigned int)atomic_read(&idev->event)); + else + return -ENODEV; +} +static DEVICE_ATTR(event, S_IRUGO, show_event, NULL); + +static struct attribute *uio_attrs[] = { + &dev_attr_name.attr, + &dev_attr_version.attr, + &dev_attr_event.attr, + NULL, +}; + +static struct attribute_group uio_attr_grp = { + .attrs = uio_attrs, +}; + +/* + * device functions + */ +static int uio_dev_add_attributes(struct uio_device *idev) +{ + int ret; + int mi; + int map_found = 0; + struct uio_mem *mem; + + ret = sysfs_create_group(&idev->dev->kobj, &uio_attr_grp); + if (ret) + goto err_group; + + for (mi = 0; mi < MAX_UIO_MAPS; mi++) { + mem = &idev->info->mem[mi]; + if (mem->size == 0) + break; + if (!map_found) { + map_found = 1; + kobject_set_name(&idev->map_attr_kset.kobj,"maps"); + idev->map_attr_kset.ktype = &map_attr_type; + idev->map_attr_kset.kobj.parent = &idev->dev->kobj; + ret = kset_register(&idev->map_attr_kset); + if (ret) + goto err_remove_group; + } + kobject_init(&mem->kobj); + kobject_set_name(&mem->kobj,"map%d",mi); + mem->kobj.parent = &idev->map_attr_kset.kobj; + mem->kobj.kset = &idev->map_attr_kset; + ret = kobject_add(&mem->kobj); + if (ret) + goto err_remove_maps; + } + + return 0; + +err_remove_maps: + for (mi--; mi>=0; mi--) { + mem = &idev->info->mem[mi]; + kobject_unregister(&mem->kobj); + } + kset_unregister(&idev->map_attr_kset); /* Needed ? */ +err_remove_group: + sysfs_remove_group(&idev->dev->kobj, &uio_attr_grp); +err_group: + dev_err(idev->dev, "error creating sysfs files (%d)\n", ret); + return ret; +} + +static void uio_dev_del_attributes(struct uio_device *idev) +{ + int mi; + struct uio_mem *mem; + for (mi = 0; mi < MAX_UIO_MAPS; mi++) { + mem = &idev->info->mem[mi]; + if (mem->size == 0) + break; + kobject_unregister(&mem->kobj); + } + kset_unregister(&idev->map_attr_kset); + sysfs_remove_group(&idev->dev->kobj, &uio_attr_grp); +} + +static int uio_get_minor(struct uio_device *idev) +{ + static DEFINE_MUTEX(minor_lock); + int retval = -ENOMEM; + int id; + + mutex_lock(&minor_lock); + if (idr_pre_get(&uio_idr, GFP_KERNEL) == 0) + goto exit; + + retval = idr_get_new(&uio_idr, idev, &id); + if (retval < 0) { + if (retval == -EAGAIN) + retval = -ENOMEM; + goto exit; + } + idev->minor = id & MAX_ID_MASK; +exit: + mutex_unlock(&minor_lock); + return retval; +} + +static void uio_free_minor(struct uio_device *idev) +{ + idr_remove(&uio_idr, idev->minor); +} + +/** + * uio_event_notify - trigger an interrupt event + * @info: UIO device capabilities + */ +void uio_event_notify(struct uio_info *info) +{ + struct uio_device *idev = info->uio_dev; + + atomic_inc(&idev->event); + wake_up_interruptible(&idev->wait); + kill_fasync(&idev->async_queue, SIGIO, POLL_IN); +} +EXPORT_SYMBOL_GPL(uio_event_notify); + +/** + * uio_interrupt - hardware interrupt handler + * @irq: IRQ number, can be UIO_IRQ_CYCLIC for cyclic timer + * @dev_id: Pointer to the devices uio_device structure + */ +static irqreturn_t uio_interrupt(int irq, void *dev_id) +{ + struct uio_device *idev = (struct uio_device *)dev_id; + irqreturn_t ret = idev->info->handler(irq, idev->info); + + if (ret == IRQ_HANDLED) + uio_event_notify(idev->info); + + return ret; +} + +struct uio_listener { + struct uio_device *dev; + s32 event_count; +}; + +static int uio_open(struct inode *inode, struct file *filep) +{ + struct uio_device *idev; + struct uio_listener *listener; + int ret = 0; + + idev = idr_find(&uio_idr, iminor(inode)); + if (!idev) + return -ENODEV; + + listener = kmalloc(sizeof(*listener), GFP_KERNEL); + if (!listener) + return -ENOMEM; + + listener->dev = idev; + listener->event_count = atomic_read(&idev->event); + filep->private_data = listener; + + if (idev->info->open) { + if (!try_module_get(idev->owner)) + return -ENODEV; + ret = idev->info->open(idev->info, inode); + module_put(idev->owner); + } + + if (ret) + kfree(listener); + + return ret; +} + +static int uio_fasync(int fd, struct file *filep, int on) +{ + struct uio_listener *listener = filep->private_data; + struct uio_device *idev = listener->dev; + + return fasync_helper(fd, filep, on, &idev->async_queue); +} + +static int uio_release(struct inode *inode, struct file *filep) +{ + int ret = 0; + struct uio_listener *listener = filep->private_data; + struct uio_device *idev = listener->dev; + + if (idev->info->release) { + if (!try_module_get(idev->owner)) + return -ENODEV; + ret = idev->info->release(idev->info, inode); + module_put(idev->owner); + } + if (filep->f_flags & FASYNC) + ret = uio_fasync(-1, filep, 0); + kfree(listener); + return ret; +} + +static unsigned int uio_poll(struct file *filep, poll_table *wait) +{ + struct uio_listener *listener = filep->private_data; + struct uio_device *idev = listener->dev; + + if (idev->info->irq == UIO_IRQ_NONE) + return -EIO; + + poll_wait(filep, &idev->wait, wait); + if (listener->event_count != atomic_read(&idev->event)) + return POLLIN | POLLRDNORM; + return 0; +} + +static ssize_t uio_read(struct file *filep, char __user *buf, + size_t count, loff_t *ppos) +{ + struct uio_listener *listener = filep->private_data; + struct uio_device *idev = listener->dev; + DECLARE_WAITQUEUE(wait, current); + ssize_t retval; + s32 event_count; + + if (idev->info->irq == UIO_IRQ_NONE) + return -EIO; + + if (count != sizeof(s32)) + return -EINVAL; + + add_wait_queue(&idev->wait, &wait); + + do { + set_current_state(TASK_INTERRUPTIBLE); + + event_count = atomic_read(&idev->event); + if (event_count != listener->event_count) { + if (copy_to_user(buf, &event_count, count)) + retval = -EFAULT; + else { + listener->event_count = event_count; + retval = count; + } + break; + } + + if (filep->f_flags & O_NONBLOCK) { + retval = -EAGAIN; + break; + } + + if (signal_pending(current)) { + retval = -ERESTARTSYS; + break; + } + schedule(); + } while (1); + + __set_current_state(TASK_RUNNING); + remove_wait_queue(&idev->wait, &wait); + + return retval; +} + +static int uio_find_mem_index(struct vm_area_struct *vma) +{ + int mi; + struct uio_device *idev = vma->vm_private_data; + + for (mi = 0; mi < MAX_UIO_MAPS; mi++) { + if (idev->info->mem[mi].size == 0) + return -1; + if (vma->vm_pgoff == mi) + return mi; + } + return -1; +} + +static void uio_vma_open(struct vm_area_struct *vma) +{ + struct uio_device *idev = vma->vm_private_data; + idev->vma_count++; +} + +static void uio_vma_close(struct vm_area_struct *vma) +{ + struct uio_device *idev = vma->vm_private_data; + idev->vma_count--; +} + +static struct page *uio_vma_nopage(struct vm_area_struct *vma, + unsigned long address, int *type) +{ + struct uio_device *idev = vma->vm_private_data; + struct page* page = NOPAGE_SIGBUS; + + int mi = uio_find_mem_index(vma); + if (mi < 0) + return page; + + if (idev->info->mem[mi].memtype == UIO_MEM_LOGICAL) + page = virt_to_page(idev->info->mem[mi].addr); + else + page = vmalloc_to_page((void*)idev->info->mem[mi].addr); + get_page(page); + if (type) + *type = VM_FAULT_MINOR; + return page; +} + +static struct vm_operations_struct uio_vm_ops = { + .open = uio_vma_open, + .close = uio_vma_close, + .nopage = uio_vma_nopage, +}; + +static int uio_mmap_physical(struct vm_area_struct *vma) +{ + struct uio_device *idev = vma->vm_private_data; + int mi = uio_find_mem_index(vma); + if (mi < 0) + return -EINVAL; + + vma->vm_flags |= VM_IO | VM_RESERVED; + + return remap_pfn_range(vma, + vma->vm_start, + idev->info->mem[mi].addr >> PAGE_SHIFT, + vma->vm_end - vma->vm_start, + vma->vm_page_prot); +} + +static int uio_mmap_logical(struct vm_area_struct *vma) +{ + vma->vm_flags |= VM_RESERVED; + vma->vm_ops = &uio_vm_ops; + uio_vma_open(vma); + return 0; +} + +static int uio_mmap(struct file *filep, struct vm_area_struct *vma) +{ + struct uio_listener *listener = filep->private_data; + struct uio_device *idev = listener->dev; + int mi; + unsigned long requested_pages, actual_pages; + int ret = 0; + + if (vma->vm_end < vma->vm_start) + return -EINVAL; + + vma->vm_private_data = idev; + + mi = uio_find_mem_index(vma); + if (mi < 0) + return -EINVAL; + + requested_pages = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; + actual_pages = (idev->info->mem[mi].size + PAGE_SIZE -1) >> PAGE_SHIFT; + if (requested_pages > actual_pages) + return -EINVAL; + + if (idev->info->mmap) { + if (!try_module_get(idev->owner)) + return -ENODEV; + ret = idev->info->mmap(idev->info, vma); + module_put(idev->owner); + return ret; + } + + switch (idev->info->mem[mi].memtype) { + case UIO_MEM_PHYS: + return uio_mmap_physical(vma); + case UIO_MEM_LOGICAL: + case UIO_MEM_VIRTUAL: + return uio_mmap_logical(vma); + default: + return -EINVAL; + } +} + +static struct file_operations uio_fops = { + .owner = THIS_MODULE, + .open = uio_open, + .release = uio_release, + .read = uio_read, + .mmap = uio_mmap, + .poll = uio_poll, + .fasync = uio_fasync, +}; + +static int uio_major_init(void) +{ + uio_major = register_chrdev(0, "uio", &uio_fops); + if (uio_major < 0) + return uio_major; + return 0; +} + +static void uio_major_cleanup(void) +{ + unregister_chrdev(uio_major, "uio"); +} + +static int init_uio_class(void) +{ + int ret = 0; + + if (uio_class != NULL) { + kref_get(&uio_class->kref); + goto exit; + } + + /* This is the first time in here, set everything up properly */ + ret = uio_major_init(); + if (ret) + goto exit; + + uio_class = kzalloc(sizeof(*uio_class), GFP_KERNEL); + if (!uio_class) { + ret = -ENOMEM; + goto err_kzalloc; + } + + kref_init(&uio_class->kref); + uio_class->class = class_create(THIS_MODULE, "uio"); + if (IS_ERR(uio_class->class)) { + ret = IS_ERR(uio_class->class); + printk(KERN_ERR "class_create failed for uio\n"); + goto err_class_create; + } + return 0; + +err_class_create: + kfree(uio_class); + uio_class = NULL; +err_kzalloc: + uio_major_cleanup(); +exit: + return ret; +} + +static void release_uio_class(struct kref *kref) +{ + /* Ok, we cheat as we know we only have one uio_class */ + class_destroy(uio_class->class); + kfree(uio_class); + uio_major_cleanup(); + uio_class = NULL; +} + +static void uio_class_destroy(void) +{ + if (uio_class) + kref_put(&uio_class->kref, release_uio_class); +} + +/** + * uio_register_device - register a new userspace IO device + * @owner: module that creates the new device + * @parent: parent device + * @info: UIO device capabilities + * + * returns zero on success or a negative error code. + */ +int __uio_register_device(struct module *owner, + struct device *parent, + struct uio_info *info) +{ + struct uio_device *idev; + int ret = 0; + + if (!parent || !info || !info->name || !info->version) + return -EINVAL; + + info->uio_dev = NULL; + + ret = init_uio_class(); + if (ret) + return ret; + + idev = kzalloc(sizeof(*idev), GFP_KERNEL); + if (!idev) { + ret = -ENOMEM; + goto err_kzalloc; + } + + idev->owner = owner; + idev->info = info; + init_waitqueue_head(&idev->wait); + atomic_set(&idev->event, 0); + + ret = uio_get_minor(idev); + if (ret) + goto err_get_minor; + + idev->dev = device_create(uio_class->class, parent, + MKDEV(uio_major, idev->minor), + "uio%d", idev->minor); + if (IS_ERR(idev->dev)) { + printk(KERN_ERR "UIO: device register failed\n"); + ret = PTR_ERR(idev->dev); + goto err_device_create; + } + dev_set_drvdata(idev->dev, idev); + + ret = uio_dev_add_attributes(idev); + if (ret) + goto err_uio_dev_add_attributes; + + info->uio_dev = idev; + + if (idev->info->irq >= 0) { + ret = request_irq(idev->info->irq, uio_interrupt, + idev->info->irq_flags, idev->info->name, idev); + if (ret) + goto err_request_irq; + } + + return 0; + +err_request_irq: + uio_dev_del_attributes(idev); +err_uio_dev_add_attributes: + device_destroy(uio_class->class, MKDEV(uio_major, idev->minor)); +err_device_create: + uio_free_minor(idev); +err_get_minor: + kfree(idev); +err_kzalloc: + uio_class_destroy(); + return ret; +} +EXPORT_SYMBOL_GPL(__uio_register_device); + +/** + * uio_unregister_device - unregister a industrial IO device + * @info: UIO device capabilities + * + */ +void uio_unregister_device(struct uio_info *info) +{ + struct uio_device *idev; + + if (!info || !info->uio_dev) + return; + + idev = info->uio_dev; + + uio_free_minor(idev); + + if (info->irq >= 0) + free_irq(info->irq, idev); + + uio_dev_del_attributes(idev); + + dev_set_drvdata(idev->dev, NULL); + device_destroy(uio_class->class, MKDEV(uio_major, idev->minor)); + kfree(idev); + uio_class_destroy(); + + return; +} +EXPORT_SYMBOL_GPL(uio_unregister_device); + +static int __init uio_init(void) +{ + return 0; +} + +static void __exit uio_exit(void) +{ +} + +module_init(uio_init) +module_exit(uio_exit) +MODULE_LICENSE("GPL v2"); diff --git a/drivers/uio/uio_cif.c b/drivers/uio/uio_cif.c new file mode 100644 index 00000000000..838bae46083 --- /dev/null +++ b/drivers/uio/uio_cif.c @@ -0,0 +1,156 @@ +/* + * UIO Hilscher CIF card driver + * + * (C) 2007 Hans J. Koch <hjk@linutronix.de> + * Original code (C) 2005 Benedikt Spranger <b.spranger@linutronix.de> + * + * Licensed under GPL version 2 only. + * + */ + +#include <linux/device.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/uio_driver.h> + +#include <asm/io.h> + +#ifndef PCI_DEVICE_ID_PLX_9030 +#define PCI_DEVICE_ID_PLX_9030 0x9030 +#endif + +#define PLX9030_INTCSR 0x4C +#define INTSCR_INT1_ENABLE 0x01 +#define INTSCR_INT1_STATUS 0x04 +#define INT1_ENABLED_AND_ACTIVE (INTSCR_INT1_ENABLE | INTSCR_INT1_STATUS) + +#define PCI_SUBVENDOR_ID_PEP 0x1518 +#define CIF_SUBDEVICE_PROFIBUS 0x430 +#define CIF_SUBDEVICE_DEVICENET 0x432 + + +static irqreturn_t hilscher_handler(int irq, struct uio_info *dev_info) +{ + void __iomem *plx_intscr = dev_info->mem[0].internal_addr + + PLX9030_INTCSR; + + if ((ioread8(plx_intscr) & INT1_ENABLED_AND_ACTIVE) + != INT1_ENABLED_AND_ACTIVE) + return IRQ_NONE; + + /* Disable interrupt */ + iowrite8(ioread8(plx_intscr) & ~INTSCR_INT1_ENABLE, plx_intscr); + return IRQ_HANDLED; +} + +static int __devinit hilscher_pci_probe(struct pci_dev *dev, + const struct pci_device_id *id) +{ + struct uio_info *info; + + info = kzalloc(sizeof(struct uio_info), GFP_KERNEL); + if (!info) + return -ENOMEM; + + if (pci_enable_device(dev)) + goto out_free; + + if (pci_request_regions(dev, "hilscher")) + goto out_disable; + + info->mem[0].addr = pci_resource_start(dev, 0); + if (!info->mem[0].addr) + goto out_release; + info->mem[0].internal_addr = ioremap(pci_resource_start(dev, 0), + pci_resource_len(dev, 0)); + if (!info->mem[0].internal_addr) + goto out_release; + + info->mem[0].size = pci_resource_len(dev, 0); + info->mem[0].memtype = UIO_MEM_PHYS; + info->mem[1].addr = pci_resource_start(dev, 2); + info->mem[1].size = pci_resource_len(dev, 2); + info->mem[1].memtype = UIO_MEM_PHYS; + switch (id->subdevice) { + case CIF_SUBDEVICE_PROFIBUS: + info->name = "CIF_Profibus"; + break; + case CIF_SUBDEVICE_DEVICENET: + info->name = "CIF_Devicenet"; + break; + default: + info->name = "CIF_???"; + } + info->version = "0.0.1"; + info->irq = dev->irq; + info->irq_flags = IRQF_DISABLED | IRQF_SHARED; + info->handler = hilscher_handler; + + if (uio_register_device(&dev->dev, info)) + goto out_unmap; + + pci_set_drvdata(dev, info); + + return 0; +out_unmap: + iounmap(info->mem[0].internal_addr); +out_release: + pci_release_regions(dev); +out_disable: + pci_disable_device(dev); +out_free: + kfree (info); + return -ENODEV; +} + +static void hilscher_pci_remove(struct pci_dev *dev) +{ + struct uio_info *info = pci_get_drvdata(dev); + + uio_unregister_device(info); + pci_release_regions(dev); + pci_disable_device(dev); + pci_set_drvdata(dev, NULL); + iounmap(info->mem[0].internal_addr); + + kfree (info); +} + +static struct pci_device_id hilscher_pci_ids[] = { + { + .vendor = PCI_VENDOR_ID_PLX, + .device = PCI_DEVICE_ID_PLX_9030, + .subvendor = PCI_SUBVENDOR_ID_PEP, + .subdevice = CIF_SUBDEVICE_PROFIBUS, + }, + { + .vendor = PCI_VENDOR_ID_PLX, + .device = PCI_DEVICE_ID_PLX_9030, + .subvendor = PCI_SUBVENDOR_ID_PEP, + .subdevice = CIF_SUBDEVICE_DEVICENET, + }, + { 0, } +}; + +static struct pci_driver hilscher_pci_driver = { + .name = "hilscher", + .id_table = hilscher_pci_ids, + .probe = hilscher_pci_probe, + .remove = hilscher_pci_remove, +}; + +static int __init hilscher_init_module(void) +{ + return pci_register_driver(&hilscher_pci_driver); +} + +static void __exit hilscher_exit_module(void) +{ + pci_unregister_driver(&hilscher_pci_driver); +} + +module_init(hilscher_init_module); +module_exit(hilscher_exit_module); + +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Hans J. Koch, Benedikt Spranger"); diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 73c49362cd4..654857493a8 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -29,13 +29,6 @@ #include "hcd.h" #include "usb.h" -#define VERBOSE_DEBUG 0 - -#if VERBOSE_DEBUG -#define dev_vdbg dev_dbg -#else -#define dev_vdbg(dev, fmt, args...) do { } while (0) -#endif #ifdef CONFIG_HOTPLUG diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES index a9b6bc5157b..6d84ca2beea 100644 --- a/fs/cifs/CHANGES +++ b/fs/cifs/CHANGES @@ -1,3 +1,10 @@ +Version 1.50 +------------ +Fix NTLMv2 signing. NFS server mounted over cifs works (if cifs mount is +done with "serverino" mount option). Add support for POSIX Unlink +(helps with certain sharing violation cases when server such as +Samba supports newer POSIX CIFS Protocol Extensions). + Version 1.49 ------------ IPv6 support. Enable ipv6 addresses to be passed on mount (put the ipv6 @@ -8,7 +15,11 @@ when Unix Extensions were ignored). This allows users to override the default uid and gid for files when they are certain that the uids or gids on the server do not match those of the client. Make "sec=none" mount override username (so that null user connection is attempted) -to match what documentation said. +to match what documentation said. Support for very large reads, over 127K, +available to some newer servers (such as Samba 3.0.26 and later but +note that it also requires setting CIFSMaxBufSize at module install +time to a larger value which may hurt performance in some cases). +Make sign option force signing (or fail if server does not support it). Version 1.48 ------------ diff --git a/fs/cifs/README b/fs/cifs/README index 4d01697722c..85f1eb14083 100644 --- a/fs/cifs/README +++ b/fs/cifs/README @@ -301,10 +301,21 @@ A partial list of the supported mount options follows: during the local client kernel build will be used. If server does not support Unicode, this parameter is unused. - rsize default read size (usually 16K) - wsize default write size (usually 16K, 32K is often better over GigE) - maximum wsize currently allowed by CIFS is 57344 (14 4096 byte - pages) + rsize default read size (usually 16K). The client currently + can not use rsize larger than CIFSMaxBufSize. CIFSMaxBufSize + defaults to 16K and may be changed (from 8K to the maximum + kmalloc size allowed by your kernel) at module install time + for cifs.ko. Setting CIFSMaxBufSize to a very large value + will cause cifs to use more memory and may reduce performance + in some cases. To use rsize greater than 127K (the original + cifs protocol maximum) also requires that the server support + a new Unix Capability flag (for very large read) which some + newer servers (e.g. Samba 3.0.26 or later) do. rsize can be + set from a minimum of 2048 to a maximum of 130048 (127K or + CIFSMaxBufSize, whichever is smaller) + wsize default write size (default 57344) + maximum wsize currently allowed by CIFS is 57344 (fourteen + 4096 byte pages) rw mount the network share read-write (note that the server may still consider the share read-only) ro mount network share read-only @@ -359,7 +370,7 @@ A partial list of the supported mount options follows: Note that this does not affect the normal ACL check on the target machine done by the server software (of the server ACL against the user name provided at mount time). - serverino Use servers inode numbers instead of generating automatically + serverino Use server's inode numbers instead of generating automatically incrementing inode numbers on the client. Although this will make it easier to spot hardlinked files (as they will have the same inode numbers) and inode numbers may be persistent, @@ -367,12 +378,11 @@ A partial list of the supported mount options follows: are unique if multiple server side mounts are exported under a single share (since inode numbers on the servers might not be unique if multiple filesystems are mounted under the same - shared higher level directory). Note that this requires that - the server support the CIFS Unix Extensions as other servers - do not return a unique IndexNumber on SMB FindFirst (most - servers return zero as the IndexNumber). Parameter has no - effect to Windows servers and others which do not support the - CIFS Unix Extensions. + shared higher level directory). Note that some older + (e.g. pre-Windows 2000) do not support returning UniqueIDs + or the CIFS Unix Extensions equivalent and for those + this mount option will have no effect. Exporting cifs mounts + under nfsd requires this mount option on the cifs mount. noserverino Client generates inode numbers (rather than using the actual one from the server) by default. setuids If the CIFS Unix extensions are negotiated with the server @@ -582,10 +592,10 @@ the start of smb requests and responses can be enabled via: echo 1 > /proc/fs/cifs/traceSMB -Two other experimental features are under development and to test -require enabling CONFIG_CIFS_EXPERIMENTAL +Two other experimental features are under development. To test these +requires enabling CONFIG_CIFS_EXPERIMENTAL - More efficient write operations + ipv6 enablement DNOTIFY fcntl: needed for support of directory change notification and perhaps later for file leases) diff --git a/fs/cifs/TODO b/fs/cifs/TODO index 78b620e332b..d7bd51575fd 100644 --- a/fs/cifs/TODO +++ b/fs/cifs/TODO @@ -18,9 +18,9 @@ better) d) Kerberos/SPNEGO session setup support - (started) -e) More testing of NTLMv2 authentication (mostly implemented - double check -that NTLMv2 signing works, also need to cleanup now unneeded SessSetup code in -fs/cifs/connect.c) +e) Cleanup now unneeded SessSetup code in +fs/cifs/connect.c and add back in NTLMSSP code if any servers +need it f) MD5-HMAC signing SMB PDUs when SPNEGO style SessionSetup used (Kerberos or NTLMSSP). Signing alreadyimplemented for NTLM @@ -106,6 +106,12 @@ but recognizes them succeed but still return access denied (appears to be Windows server not cifs client problem) and has not been reproduced recently. NTFS partitions do not have this problem. +4) Unix/POSIX capabilities are reset after reconnection, and affect +a few fields in the tree connection but we do do not know which +superblocks to apply these changes to. We should probably walk +the list of superblocks to set these. Also need to check the +flags on the second mount to the same share, and see if we +can do the same trick that NFS does to remount duplicate shares. Misc testing to do ================== diff --git a/fs/cifs/asn1.c b/fs/cifs/asn1.c index 2e75883b7f5..f50a88d58f7 100644 --- a/fs/cifs/asn1.c +++ b/fs/cifs/asn1.c @@ -1,7 +1,7 @@ -/* +/* * The ASB.1/BER parsing code is derived from ip_nat_snmp_basic.c which was in * turn derived from the gxsnmp package by Gregory McLean & Jochen Friedrich - * + * * Copyright (c) 2000 RP Internet (www.rpi.net.au). * * This program is free software; you can redistribute it and/or modify @@ -80,7 +80,7 @@ static unsigned long SPNEGO_OID[7] = { 1, 3, 6, 1, 5, 5, 2 }; static unsigned long NTLMSSP_OID[10] = { 1, 3, 6, 1, 4, 1, 311, 2, 2, 10 }; -/* +/* * ASN.1 context. */ struct asn1_ctx { @@ -190,7 +190,7 @@ asn1_header_decode(struct asn1_ctx *ctx, unsigned char **eoc, unsigned int *cls, unsigned int *con, unsigned int *tag) { - unsigned int def = 0; + unsigned int def = 0; unsigned int len = 0; if (!asn1_id_decode(ctx, cls, con, tag)) @@ -331,7 +331,7 @@ static unsigned char asn1_ulong_decode(struct asn1_ctx *ctx, *integer |= ch; } return 1; -} +} static unsigned char asn1_octets_decode(struct asn1_ctx *ctx, @@ -376,7 +376,7 @@ asn1_subid_decode(struct asn1_ctx *ctx, unsigned long *subid) return 1; } -static int +static int asn1_oid_decode(struct asn1_ctx *ctx, unsigned char *eoc, unsigned long **oid, unsigned int *len) { @@ -459,7 +459,7 @@ decode_negTokenInit(unsigned char *security_blob, int length, unsigned int cls, con, tag, oidlen, rc; int use_ntlmssp = FALSE; - *secType = NTLM; /* BB eventually make Kerberos or NLTMSSP the default */ + *secType = NTLM; /* BB eventually make Kerberos or NLTMSSP the default*/ /* cifs_dump_mem(" Received SecBlob ", security_blob, length); */ @@ -498,7 +498,8 @@ decode_negTokenInit(unsigned char *security_blob, int length, return 0; } else if ((cls != ASN1_CTX) || (con != ASN1_CON) || (tag != ASN1_EOC)) { - cFYI(1,("cls = %d con = %d tag = %d end = %p (%d) exit 0", + cFYI(1, + ("cls = %d con = %d tag = %d end = %p (%d) exit 0", cls, con, tag, end, *end)); return 0; } @@ -508,7 +509,8 @@ decode_negTokenInit(unsigned char *security_blob, int length, return 0; } else if ((cls != ASN1_UNI) || (con != ASN1_CON) || (tag != ASN1_SEQ)) { - cFYI(1,("cls = %d con = %d tag = %d end = %p (%d) exit 1", + cFYI(1, + ("cls = %d con = %d tag = %d end = %p (%d) exit 1", cls, con, tag, end, *end)); return 0; } @@ -540,32 +542,34 @@ decode_negTokenInit(unsigned char *security_blob, int length, rc = asn1_header_decode(&ctx, &end, &cls, &con, &tag); if (!rc) { cFYI(1, - ("Error 1 decoding negTokenInit header exit 2")); + ("Error decoding negTokenInit hdr exit2")); return 0; } if ((tag == ASN1_OJI) && (con == ASN1_PRI)) { rc = asn1_oid_decode(&ctx, end, &oid, &oidlen); - if(rc) { + if (rc) { cFYI(1, - ("OID len = %d oid = 0x%lx 0x%lx 0x%lx 0x%lx", - oidlen, *oid, *(oid + 1), *(oid + 2), - *(oid + 3))); - rc = compare_oid(oid, oidlen, NTLMSSP_OID, - NTLMSSP_OID_LEN); + ("OID len = %d oid = 0x%lx 0x%lx " + "0x%lx 0x%lx", + oidlen, *oid, *(oid + 1), + *(oid + 2), *(oid + 3))); + rc = compare_oid(oid, oidlen, + NTLMSSP_OID, NTLMSSP_OID_LEN); kfree(oid); if (rc) use_ntlmssp = TRUE; } } else { - cFYI(1,("This should be an oid what is going on? ")); + cFYI(1, ("Should be an oid what is going on?")); } } if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { cFYI(1, - ("Error decoding last part of negTokenInit exit 3")); + ("Error decoding last part negTokenInit exit3")); return 0; - } else if ((cls != ASN1_CTX) || (con != ASN1_CON)) { /* tag = 3 indicating mechListMIC */ + } else if ((cls != ASN1_CTX) || (con != ASN1_CON)) { + /* tag = 3 indicating mechListMIC */ cFYI(1, ("Exit 4 cls = %d con = %d tag = %d end = %p (%d)", cls, con, tag, end, *end)); @@ -573,7 +577,7 @@ decode_negTokenInit(unsigned char *security_blob, int length, } if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { cFYI(1, - ("Error decoding last part of negTokenInit exit 5")); + ("Error decoding last part negTokenInit exit5")); return 0; } else if ((cls != ASN1_UNI) || (con != ASN1_CON) || (tag != ASN1_SEQ)) { @@ -584,7 +588,7 @@ decode_negTokenInit(unsigned char *security_blob, int length, if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { cFYI(1, - ("Error decoding last part of negTokenInit exit 7")); + ("Error decoding last part negTokenInit exit 7")); return 0; } else if ((cls != ASN1_CTX) || (con != ASN1_CON)) { cFYI(1, @@ -594,20 +598,21 @@ decode_negTokenInit(unsigned char *security_blob, int length, } if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { cFYI(1, - ("Error decoding last part of negTokenInit exit 9")); + ("Error decoding last part negTokenInit exit9")); return 0; } else if ((cls != ASN1_UNI) || (con != ASN1_PRI) || (tag != ASN1_GENSTR)) { cFYI(1, - ("Exit 10 cls = %d con = %d tag = %d end = %p (%d)", + ("Exit10 cls = %d con = %d tag = %d end = %p (%d)", cls, con, tag, end, *end)); return 0; } - cFYI(1, ("Need to call asn1_octets_decode() function for this %s", ctx.pointer)); /* is this UTF-8 or ASCII? */ + cFYI(1, ("Need to call asn1_octets_decode() function for %s", + ctx.pointer)); /* is this UTF-8 or ASCII? */ } - /* if (use_kerberos) - *secType = Kerberos + /* if (use_kerberos) + *secType = Kerberos else */ if (use_ntlmssp) { *secType = NTLMSSP; diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c index 07838b2ac1c..1bf8cf522ad 100644 --- a/fs/cifs/cifs_debug.c +++ b/fs/cifs/cifs_debug.c @@ -58,7 +58,7 @@ cifs_dump_mem(char *label, void *data, int length) } #ifdef CONFIG_CIFS_DEBUG2 -void cifs_dump_detail(struct smb_hdr * smb) +void cifs_dump_detail(struct smb_hdr *smb) { cERROR(1, ("Cmd: %d Err: 0x%x Flags: 0x%x Flgs2: 0x%x Mid: %d Pid: %d", smb->Command, smb->Status.CifsError, @@ -67,10 +67,10 @@ void cifs_dump_detail(struct smb_hdr * smb) } -void cifs_dump_mids(struct TCP_Server_Info * server) +void cifs_dump_mids(struct TCP_Server_Info *server) { struct list_head *tmp; - struct mid_q_entry * mid_entry; + struct mid_q_entry *mid_entry; if (server == NULL) return; @@ -114,12 +114,12 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset, { struct list_head *tmp; struct list_head *tmp1; - struct mid_q_entry * mid_entry; + struct mid_q_entry *mid_entry; struct cifsSesInfo *ses; struct cifsTconInfo *tcon; int i; int length = 0; - char * original_buf = buf; + char *original_buf = buf; *beginBuffer = buf + offset; @@ -145,7 +145,6 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset, (ses->serverNOS == NULL)) { buf += sprintf(buf, "\nentry for %s not fully " "displayed\n\t", ses->serverName); - } else { length = sprintf(buf, @@ -901,90 +900,14 @@ security_flags_write(struct file *file, const char __user *buffer, } /* flags look ok - update the global security flags for cifs module */ extended_security = flags; + if (extended_security & CIFSSEC_MUST_SIGN) { + /* requiring signing implies signing is allowed */ + extended_security |= CIFSSEC_MAY_SIGN; + cFYI(1, ("packet signing now required")); + } else if ((extended_security & CIFSSEC_MAY_SIGN) == 0) { + cFYI(1, ("packet signing disabled")); + } + /* BB should we turn on MAY flags for other MUST options? */ return count; } - -/* static int -ntlmv2_enabled_read(char *page, char **start, off_t off, - int count, int *eof, void *data) -{ - int len; - - len = sprintf(page, "%d\n", ntlmv2_support); - - len -= off; - *start = page + off; - - if (len > count) - len = count; - else - *eof = 1; - - if (len < 0) - len = 0; - - return len; -} -static int -ntlmv2_enabled_write(struct file *file, const char __user *buffer, - unsigned long count, void *data) -{ - char c; - int rc; - - rc = get_user(c, buffer); - if (rc) - return rc; - if (c == '0' || c == 'n' || c == 'N') - ntlmv2_support = 0; - else if (c == '1' || c == 'y' || c == 'Y') - ntlmv2_support = 1; - else if (c == '2') - ntlmv2_support = 2; - - return count; -} - -static int -packet_signing_enabled_read(char *page, char **start, off_t off, - int count, int *eof, void *data) -{ - int len; - - len = sprintf(page, "%d\n", sign_CIFS_PDUs); - - len -= off; - *start = page + off; - - if (len > count) - len = count; - else - *eof = 1; - - if (len < 0) - len = 0; - - return len; -} -static int -packet_signing_enabled_write(struct file *file, const char __user *buffer, - unsigned long count, void *data) -{ - char c; - int rc; - - rc = get_user(c, buffer); - if (rc) - return rc; - if (c == '0' || c == 'n' || c == 'N') - sign_CIFS_PDUs = 0; - else if (c == '1' || c == 'y' || c == 'Y') - sign_CIFS_PDUs = 1; - else if (c == '2') - sign_CIFS_PDUs = 2; - - return count; -} */ - - #endif diff --git a/fs/cifs/cifs_fs_sb.h b/fs/cifs/cifs_fs_sb.h index 4cc2012e932..34af556cdd8 100644 --- a/fs/cifs/cifs_fs_sb.h +++ b/fs/cifs/cifs_fs_sb.h @@ -43,6 +43,6 @@ struct cifs_sb_info { mode_t mnt_dir_mode; int mnt_cifs_flags; int prepathlen; - char * prepath; + char *prepath; }; #endif /* _CIFS_FS_SB_H */ diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c index 701e9a9185f..b5903b89250 100644 --- a/fs/cifs/cifs_unicode.c +++ b/fs/cifs/cifs_unicode.c @@ -66,7 +66,7 @@ cifs_strtoUCS(__le16 * to, const char *from, int len, { int charlen; int i; - wchar_t * wchar_to = (wchar_t *)to; /* needed to quiet sparse */ + wchar_t *wchar_to = (wchar_t *)to; /* needed to quiet sparse */ for (i = 0; len && *from; i++, from += charlen, len -= charlen) { diff --git a/fs/cifs/cifs_unicode.h b/fs/cifs/cifs_unicode.h index 39e5b970325..614c11fcdcb 100644 --- a/fs/cifs/cifs_unicode.h +++ b/fs/cifs/cifs_unicode.h @@ -5,20 +5,20 @@ * Convert a unicode character to upper or lower case using * compressed tables. * - * Copyright (c) International Business Machines Corp., 2000,2005555555555555555555555555555555555555555555555555555555 + * Copyright (c) International Business Machines Corp., 2000,2007 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or + * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. - * + * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See * the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software + * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * @@ -70,7 +70,7 @@ int cifs_strtoUCS(__le16 *, const char *, int, const struct nls_table *); * Address of the first string */ static inline wchar_t * -UniStrcat(wchar_t * ucs1, const wchar_t * ucs2) +UniStrcat(wchar_t *ucs1, const wchar_t *ucs2) { wchar_t *anchor = ucs1; /* save a pointer to start of ucs1 */ @@ -88,7 +88,7 @@ UniStrcat(wchar_t * ucs1, const wchar_t * ucs2) * or NULL if the character is not in the string */ static inline wchar_t * -UniStrchr(const wchar_t * ucs, wchar_t uc) +UniStrchr(const wchar_t *ucs, wchar_t uc) { while ((*ucs != uc) && *ucs) ucs++; @@ -107,7 +107,7 @@ UniStrchr(const wchar_t * ucs, wchar_t uc) * > 0: First string is greater than second */ static inline int -UniStrcmp(const wchar_t * ucs1, const wchar_t * ucs2) +UniStrcmp(const wchar_t *ucs1, const wchar_t *ucs2) { while ((*ucs1 == *ucs2) && *ucs1) { ucs1++; @@ -120,7 +120,7 @@ UniStrcmp(const wchar_t * ucs1, const wchar_t * ucs2) * UniStrcpy: Copy a string */ static inline wchar_t * -UniStrcpy(wchar_t * ucs1, const wchar_t * ucs2) +UniStrcpy(wchar_t *ucs1, const wchar_t *ucs2) { wchar_t *anchor = ucs1; /* save the start of result string */ @@ -132,7 +132,7 @@ UniStrcpy(wchar_t * ucs1, const wchar_t * ucs2) * UniStrlen: Return the length of a string (in 16 bit Unicode chars not bytes) */ static inline size_t -UniStrlen(const wchar_t * ucs1) +UniStrlen(const wchar_t *ucs1) { int i = 0; @@ -142,10 +142,11 @@ UniStrlen(const wchar_t * ucs1) } /* - * UniStrnlen: Return the length (in 16 bit Unicode chars not bytes) of a string (length limited) + * UniStrnlen: Return the length (in 16 bit Unicode chars not bytes) of a + * string (length limited) */ static inline size_t -UniStrnlen(const wchar_t * ucs1, int maxlen) +UniStrnlen(const wchar_t *ucs1, int maxlen) { int i = 0; @@ -161,7 +162,7 @@ UniStrnlen(const wchar_t * ucs1, int maxlen) * UniStrncat: Concatenate length limited string */ static inline wchar_t * -UniStrncat(wchar_t * ucs1, const wchar_t * ucs2, size_t n) +UniStrncat(wchar_t *ucs1, const wchar_t *ucs2, size_t n) { wchar_t *anchor = ucs1; /* save pointer to string 1 */ @@ -179,7 +180,7 @@ UniStrncat(wchar_t * ucs1, const wchar_t * ucs2, size_t n) * UniStrncmp: Compare length limited string */ static inline int -UniStrncmp(const wchar_t * ucs1, const wchar_t * ucs2, size_t n) +UniStrncmp(const wchar_t *ucs1, const wchar_t *ucs2, size_t n) { if (!n) return 0; /* Null strings are equal */ @@ -194,7 +195,7 @@ UniStrncmp(const wchar_t * ucs1, const wchar_t * ucs2, size_t n) * UniStrncmp_le: Compare length limited string - native to little-endian */ static inline int -UniStrncmp_le(const wchar_t * ucs1, const wchar_t * ucs2, size_t n) +UniStrncmp_le(const wchar_t *ucs1, const wchar_t *ucs2, size_t n) { if (!n) return 0; /* Null strings are equal */ @@ -209,7 +210,7 @@ UniStrncmp_le(const wchar_t * ucs1, const wchar_t * ucs2, size_t n) * UniStrncpy: Copy length limited string with pad */ static inline wchar_t * -UniStrncpy(wchar_t * ucs1, const wchar_t * ucs2, size_t n) +UniStrncpy(wchar_t *ucs1, const wchar_t *ucs2, size_t n) { wchar_t *anchor = ucs1; @@ -226,7 +227,7 @@ UniStrncpy(wchar_t * ucs1, const wchar_t * ucs2, size_t n) * UniStrncpy_le: Copy length limited string with pad to little-endian */ static inline wchar_t * -UniStrncpy_le(wchar_t * ucs1, const wchar_t * ucs2, size_t n) +UniStrncpy_le(wchar_t *ucs1, const wchar_t *ucs2, size_t n) { wchar_t *anchor = ucs1; @@ -247,7 +248,7 @@ UniStrncpy_le(wchar_t * ucs1, const wchar_t * ucs2, size_t n) * NULL if no matching string is found */ static inline wchar_t * -UniStrstr(const wchar_t * ucs1, const wchar_t * ucs2) +UniStrstr(const wchar_t *ucs1, const wchar_t *ucs2) { const wchar_t *anchor1 = ucs1; const wchar_t *anchor2 = ucs2; @@ -297,7 +298,7 @@ UniToupper(register wchar_t uc) * UniStrupr: Upper case a unicode string */ static inline wchar_t * -UniStrupr(register wchar_t * upin) +UniStrupr(register wchar_t *upin) { register wchar_t *up; @@ -338,7 +339,7 @@ UniTolower(wchar_t uc) * UniStrlwr: Lower case a unicode string */ static inline wchar_t * -UniStrlwr(register wchar_t * upin) +UniStrlwr(register wchar_t *upin) { register wchar_t *up; diff --git a/fs/cifs/cifs_uniupr.h b/fs/cifs/cifs_uniupr.h index da2ad5b451a..18a9d978e51 100644 --- a/fs/cifs/cifs_uniupr.h +++ b/fs/cifs/cifs_uniupr.h @@ -3,16 +3,16 @@ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or + * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. - * + * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See * the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software + * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * uniupr.h - Unicode compressed case ranges @@ -53,7 +53,7 @@ signed char CifsUniUpperTable[512] = { 0, -1, 0, -1, 0, -1, 0, 0, -1, 0, 0, 0, 0, -1, 0, 0, /* 1a0-1af */ -1, 0, 0, 0, -1, 0, -1, 0, 0, -1, 0, 0, 0, -1, 0, 0, /* 1b0-1bf */ 0, 0, 0, 0, 0, -1, -2, 0, -1, -2, 0, -1, -2, 0, -1, 0, /* 1c0-1cf */ - -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, -79, 0, -1, /* 1d0-1df */ + -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, -79, 0, -1, /* 1d0-1df */ 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, /* 1e0-1ef */ 0, 0, -1, -2, 0, -1, 0, 0, 0, -1, 0, -1, 0, -1, 0, -1, /* 1f0-1ff */ }; diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c index fdeda519eac..36272293027 100644 --- a/fs/cifs/cifsencrypt.c +++ b/fs/cifs/cifsencrypt.c @@ -21,7 +21,7 @@ #include <linux/fs.h> #include "cifspdu.h" -#include "cifsglob.h" +#include "cifsglob.h" #include "cifs_debug.h" #include "md5.h" #include "cifs_unicode.h" @@ -29,54 +29,57 @@ #include <linux/ctype.h> #include <linux/random.h> -/* Calculate and return the CIFS signature based on the mac key and the smb pdu */ +/* Calculate and return the CIFS signature based on the mac key and SMB PDU */ /* the 16 byte signature must be allocated by the caller */ /* Note we only use the 1st eight bytes */ -/* Note that the smb header signature field on input contains the +/* Note that the smb header signature field on input contains the sequence number before this function is called */ extern void mdfour(unsigned char *out, unsigned char *in, int n); extern void E_md4hash(const unsigned char *passwd, unsigned char *p16); extern void SMBencrypt(unsigned char *passwd, unsigned char *c8, - unsigned char *p24); - -static int cifs_calculate_signature(const struct smb_hdr * cifs_pdu, - const char * key, char * signature) + unsigned char *p24); + +static int cifs_calculate_signature(const struct smb_hdr *cifs_pdu, + const struct mac_key *key, char *signature) { struct MD5Context context; - if((cifs_pdu == NULL) || (signature == NULL)) + if ((cifs_pdu == NULL) || (signature == NULL) || (key == NULL)) return -EINVAL; MD5Init(&context); - MD5Update(&context,key,CIFS_SESS_KEY_SIZE+16); - MD5Update(&context,cifs_pdu->Protocol,cifs_pdu->smb_buf_length); - MD5Final(signature,&context); + MD5Update(&context, (char *)&key->data, key->len); + MD5Update(&context, cifs_pdu->Protocol, cifs_pdu->smb_buf_length); + + MD5Final(signature, &context); return 0; } -int cifs_sign_smb(struct smb_hdr * cifs_pdu, struct TCP_Server_Info * server, - __u32 * pexpected_response_sequence_number) +int cifs_sign_smb(struct smb_hdr *cifs_pdu, struct TCP_Server_Info *server, + __u32 *pexpected_response_sequence_number) { int rc = 0; char smb_signature[20]; - if((cifs_pdu == NULL) || (server == NULL)) + if ((cifs_pdu == NULL) || (server == NULL)) return -EINVAL; - if((cifs_pdu->Flags2 & SMBFLG2_SECURITY_SIGNATURE) == 0) + if ((cifs_pdu->Flags2 & SMBFLG2_SECURITY_SIGNATURE) == 0) return rc; spin_lock(&GlobalMid_Lock); - cifs_pdu->Signature.Sequence.SequenceNumber = cpu_to_le32(server->sequence_number); + cifs_pdu->Signature.Sequence.SequenceNumber = + cpu_to_le32(server->sequence_number); cifs_pdu->Signature.Sequence.Reserved = 0; - + *pexpected_response_sequence_number = server->sequence_number++; server->sequence_number++; spin_unlock(&GlobalMid_Lock); - rc = cifs_calculate_signature(cifs_pdu, server->mac_signing_key,smb_signature); - if(rc) + rc = cifs_calculate_signature(cifs_pdu, &server->mac_signing_key, + smb_signature); + if (rc) memset(cifs_pdu->Signature.SecuritySignature, 0, 8); else memcpy(cifs_pdu->Signature.SecuritySignature, smb_signature, 8); @@ -84,115 +87,119 @@ int cifs_sign_smb(struct smb_hdr * cifs_pdu, struct TCP_Server_Info * server, return rc; } -static int cifs_calc_signature2(const struct kvec * iov, int n_vec, - const char * key, char * signature) +static int cifs_calc_signature2(const struct kvec *iov, int n_vec, + const struct mac_key *key, char *signature) { struct MD5Context context; int i; - if((iov == NULL) || (signature == NULL)) + if ((iov == NULL) || (signature == NULL) || (key == NULL)) return -EINVAL; MD5Init(&context); - MD5Update(&context,key,CIFS_SESS_KEY_SIZE+16); - for(i=0;i<n_vec;i++) { - if(iov[i].iov_base == NULL) { - cERROR(1,("null iovec entry")); + MD5Update(&context, (char *)&key->data, key->len); + for (i = 0; i < n_vec; i++) { + if (iov[i].iov_base == NULL) { + cERROR(1, ("null iovec entry")); return -EIO; - } else if(iov[i].iov_len == 0) + } else if (iov[i].iov_len == 0) break; /* bail out if we are sent nothing to sign */ - /* The first entry includes a length field (which does not get + /* The first entry includes a length field (which does not get signed that occupies the first 4 bytes before the header */ - if(i==0) { + if (i == 0) { if (iov[0].iov_len <= 8 ) /* cmd field at offset 9 */ break; /* nothing to sign or corrupt header */ - MD5Update(&context,iov[0].iov_base+4, iov[0].iov_len-4); + MD5Update(&context, iov[0].iov_base+4, + iov[0].iov_len-4); } else - MD5Update(&context,iov[i].iov_base, iov[i].iov_len); + MD5Update(&context, iov[i].iov_base, iov[i].iov_len); } - MD5Final(signature,&context); + MD5Final(signature, &context); return 0; } -int cifs_sign_smb2(struct kvec * iov, int n_vec, struct TCP_Server_Info *server, +int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *server, __u32 * pexpected_response_sequence_number) { int rc = 0; char smb_signature[20]; - struct smb_hdr * cifs_pdu = iov[0].iov_base; + struct smb_hdr *cifs_pdu = iov[0].iov_base; - if((cifs_pdu == NULL) || (server == NULL)) + if ((cifs_pdu == NULL) || (server == NULL)) return -EINVAL; - if((cifs_pdu->Flags2 & SMBFLG2_SECURITY_SIGNATURE) == 0) + if ((cifs_pdu->Flags2 & SMBFLG2_SECURITY_SIGNATURE) == 0) return rc; - spin_lock(&GlobalMid_Lock); - cifs_pdu->Signature.Sequence.SequenceNumber = + spin_lock(&GlobalMid_Lock); + cifs_pdu->Signature.Sequence.SequenceNumber = cpu_to_le32(server->sequence_number); - cifs_pdu->Signature.Sequence.Reserved = 0; + cifs_pdu->Signature.Sequence.Reserved = 0; - *pexpected_response_sequence_number = server->sequence_number++; - server->sequence_number++; - spin_unlock(&GlobalMid_Lock); + *pexpected_response_sequence_number = server->sequence_number++; + server->sequence_number++; + spin_unlock(&GlobalMid_Lock); - rc = cifs_calc_signature2(iov, n_vec, server->mac_signing_key, + rc = cifs_calc_signature2(iov, n_vec, &server->mac_signing_key, smb_signature); - if(rc) - memset(cifs_pdu->Signature.SecuritySignature, 0, 8); - else - memcpy(cifs_pdu->Signature.SecuritySignature, smb_signature, 8); - - return rc; + if (rc) + memset(cifs_pdu->Signature.SecuritySignature, 0, 8); + else + memcpy(cifs_pdu->Signature.SecuritySignature, smb_signature, 8); + return rc; } -int cifs_verify_signature(struct smb_hdr * cifs_pdu, const char * mac_key, - __u32 expected_sequence_number) +int cifs_verify_signature(struct smb_hdr *cifs_pdu, + const struct mac_key *mac_key, + __u32 expected_sequence_number) { unsigned int rc; char server_response_sig[8]; char what_we_think_sig_should_be[20]; - if((cifs_pdu == NULL) || (mac_key == NULL)) + if ((cifs_pdu == NULL) || (mac_key == NULL)) return -EINVAL; if (cifs_pdu->Command == SMB_COM_NEGOTIATE) return 0; if (cifs_pdu->Command == SMB_COM_LOCKING_ANDX) { - struct smb_com_lock_req * pSMB = (struct smb_com_lock_req *)cifs_pdu; - if(pSMB->LockType & LOCKING_ANDX_OPLOCK_RELEASE) + struct smb_com_lock_req *pSMB = + (struct smb_com_lock_req *)cifs_pdu; + if (pSMB->LockType & LOCKING_ANDX_OPLOCK_RELEASE) return 0; } - /* BB what if signatures are supposed to be on for session but server does not - send one? BB */ - + /* BB what if signatures are supposed to be on for session but + server does not send one? BB */ + /* Do not need to verify session setups with signature "BSRSPYL " */ - if(memcmp(cifs_pdu->Signature.SecuritySignature,"BSRSPYL ",8)==0) - cFYI(1,("dummy signature received for smb command 0x%x",cifs_pdu->Command)); + if (memcmp(cifs_pdu->Signature.SecuritySignature, "BSRSPYL ", 8) == 0) + cFYI(1, ("dummy signature received for smb command 0x%x", + cifs_pdu->Command)); /* save off the origiginal signature so we can modify the smb and check its signature against what the server sent */ - memcpy(server_response_sig,cifs_pdu->Signature.SecuritySignature,8); + memcpy(server_response_sig, cifs_pdu->Signature.SecuritySignature, 8); - cifs_pdu->Signature.Sequence.SequenceNumber = cpu_to_le32(expected_sequence_number); + cifs_pdu->Signature.Sequence.SequenceNumber = + cpu_to_le32(expected_sequence_number); cifs_pdu->Signature.Sequence.Reserved = 0; rc = cifs_calculate_signature(cifs_pdu, mac_key, what_we_think_sig_should_be); - if(rc) + if (rc) return rc; - -/* cifs_dump_mem("what we think it should be: ",what_we_think_sig_should_be,16); */ +/* cifs_dump_mem("what we think it should be: ", + what_we_think_sig_should_be, 16); */ - if(memcmp(server_response_sig, what_we_think_sig_should_be, 8)) + if (memcmp(server_response_sig, what_we_think_sig_should_be, 8)) return -EACCES; else return 0; @@ -200,89 +207,94 @@ int cifs_verify_signature(struct smb_hdr * cifs_pdu, const char * mac_key, } /* We fill in key by putting in 40 byte array which was allocated by caller */ -int cifs_calculate_mac_key(char * key, const char * rn, const char * password) +int cifs_calculate_mac_key(struct mac_key *key, const char *rn, + const char *password) { char temp_key[16]; if ((key == NULL) || (rn == NULL)) return -EINVAL; E_md4hash(password, temp_key); - mdfour(key,temp_key,16); - memcpy(key+16,rn, CIFS_SESS_KEY_SIZE); + mdfour(key->data.ntlm, temp_key, 16); + memcpy(key->data.ntlm+16, rn, CIFS_SESS_KEY_SIZE); + key->len = 40; return 0; } -int CalcNTLMv2_partial_mac_key(struct cifsSesInfo * ses, - const struct nls_table * nls_info) +int CalcNTLMv2_partial_mac_key(struct cifsSesInfo *ses, + const struct nls_table *nls_info) { char temp_hash[16]; struct HMACMD5Context ctx; - char * ucase_buf; - __le16 * unicode_buf; - unsigned int i,user_name_len,dom_name_len; + char *ucase_buf; + __le16 *unicode_buf; + unsigned int i, user_name_len, dom_name_len; - if(ses == NULL) + if (ses == NULL) return -EINVAL; E_md4hash(ses->password, temp_hash); hmac_md5_init_limK_to_64(temp_hash, 16, &ctx); user_name_len = strlen(ses->userName); - if(user_name_len > MAX_USERNAME_SIZE) + if (user_name_len > MAX_USERNAME_SIZE) return -EINVAL; - if(ses->domainName == NULL) + if (ses->domainName == NULL) return -EINVAL; /* BB should we use CIFS_LINUX_DOM */ dom_name_len = strlen(ses->domainName); - if(dom_name_len > MAX_USERNAME_SIZE) + if (dom_name_len > MAX_USERNAME_SIZE) return -EINVAL; - + ucase_buf = kmalloc((MAX_USERNAME_SIZE+1), GFP_KERNEL); - if(ucase_buf == NULL) + if (ucase_buf == NULL) return -ENOMEM; unicode_buf = kmalloc((MAX_USERNAME_SIZE+1)*4, GFP_KERNEL); - if(unicode_buf == NULL) { + if (unicode_buf == NULL) { kfree(ucase_buf); return -ENOMEM; } - - for(i=0;i<user_name_len;i++) + + for (i = 0; i < user_name_len; i++) ucase_buf[i] = nls_info->charset2upper[(int)ses->userName[i]]; ucase_buf[i] = 0; - user_name_len = cifs_strtoUCS(unicode_buf, ucase_buf, MAX_USERNAME_SIZE*2, nls_info); + user_name_len = cifs_strtoUCS(unicode_buf, ucase_buf, + MAX_USERNAME_SIZE*2, nls_info); unicode_buf[user_name_len] = 0; user_name_len++; - for(i=0;i<dom_name_len;i++) + for (i = 0; i < dom_name_len; i++) ucase_buf[i] = nls_info->charset2upper[(int)ses->domainName[i]]; ucase_buf[i] = 0; - dom_name_len = cifs_strtoUCS(unicode_buf+user_name_len, ucase_buf, MAX_USERNAME_SIZE*2, nls_info); + dom_name_len = cifs_strtoUCS(unicode_buf+user_name_len, ucase_buf, + MAX_USERNAME_SIZE*2, nls_info); unicode_buf[user_name_len + dom_name_len] = 0; hmac_md5_update((const unsigned char *) unicode_buf, - (user_name_len+dom_name_len)*2,&ctx); + (user_name_len+dom_name_len)*2, &ctx); - hmac_md5_final(ses->server->mac_signing_key,&ctx); + hmac_md5_final(ses->server->ntlmv2_hash, &ctx); kfree(ucase_buf); kfree(unicode_buf); return 0; } #ifdef CONFIG_CIFS_WEAK_PW_HASH -void calc_lanman_hash(struct cifsSesInfo * ses, char * lnm_session_key) +void calc_lanman_hash(struct cifsSesInfo *ses, char *lnm_session_key) { int i; char password_with_pad[CIFS_ENCPWD_SIZE]; - if(ses->server == NULL) + if (ses->server == NULL) return; memset(password_with_pad, 0, CIFS_ENCPWD_SIZE); - if(ses->password) + if (ses->password) strncpy(password_with_pad, ses->password, CIFS_ENCPWD_SIZE); - if((ses->server->secMode & SECMODE_PW_ENCRYPT) == 0) - if(extended_security & CIFSSEC_MAY_PLNTXT) { - memcpy(lnm_session_key, password_with_pad, CIFS_ENCPWD_SIZE); + if ((ses->server->secMode & SECMODE_PW_ENCRYPT) == 0) + if (extended_security & CIFSSEC_MAY_PLNTXT) { + memcpy(lnm_session_key, password_with_pad, + CIFS_ENCPWD_SIZE); return; } @@ -297,7 +309,7 @@ void calc_lanman_hash(struct cifsSesInfo * ses, char * lnm_session_key) utf8 and other multibyte codepages each need their own strupper function since a byte at a time will ont work. */ - for(i = 0; i < CIFS_ENCPWD_SIZE; i++) { + for (i = 0; i < CIFS_ENCPWD_SIZE; i++) { password_with_pad[i] = toupper(password_with_pad[i]); } @@ -307,19 +319,19 @@ void calc_lanman_hash(struct cifsSesInfo * ses, char * lnm_session_key) } #endif /* CIFS_WEAK_PW_HASH */ -static int calc_ntlmv2_hash(struct cifsSesInfo *ses, - const struct nls_table * nls_cp) +static int calc_ntlmv2_hash(struct cifsSesInfo *ses, + const struct nls_table *nls_cp) { int rc = 0; int len; char nt_hash[16]; - struct HMACMD5Context * pctxt; - wchar_t * user; - wchar_t * domain; + struct HMACMD5Context *pctxt; + wchar_t *user; + wchar_t *domain; pctxt = kmalloc(sizeof(struct HMACMD5Context), GFP_KERNEL); - if(pctxt == NULL) + if (pctxt == NULL) return -ENOMEM; /* calculate md4 hash of password */ @@ -331,41 +343,45 @@ static int calc_ntlmv2_hash(struct cifsSesInfo *ses, /* convert ses->userName to unicode and uppercase */ len = strlen(ses->userName); user = kmalloc(2 + (len * 2), GFP_KERNEL); - if(user == NULL) + if (user == NULL) goto calc_exit_2; len = cifs_strtoUCS(user, ses->userName, len, nls_cp); UniStrupr(user); hmac_md5_update((char *)user, 2*len, pctxt); /* convert ses->domainName to unicode and uppercase */ - if(ses->domainName) { + if (ses->domainName) { len = strlen(ses->domainName); - domain = kmalloc(2 + (len * 2), GFP_KERNEL); - if(domain == NULL) + domain = kmalloc(2 + (len * 2), GFP_KERNEL); + if (domain == NULL) goto calc_exit_1; len = cifs_strtoUCS(domain, ses->domainName, len, nls_cp); - UniStrupr(domain); + /* the following line was removed since it didn't work well + with lower cased domain name that passed as an option. + Maybe converting the domain name earlier makes sense */ + /* UniStrupr(domain); */ hmac_md5_update((char *)domain, 2*len, pctxt); - + kfree(domain); } calc_exit_1: kfree(user); calc_exit_2: - /* BB FIXME what about bytes 24 through 40 of the signing key? + /* BB FIXME what about bytes 24 through 40 of the signing key? compare with the NTLM example */ - hmac_md5_final(ses->server->mac_signing_key, pctxt); + hmac_md5_final(ses->server->ntlmv2_hash, pctxt); return rc; } -void setup_ntlmv2_rsp(struct cifsSesInfo * ses, char * resp_buf, - const struct nls_table * nls_cp) +void setup_ntlmv2_rsp(struct cifsSesInfo *ses, char *resp_buf, + const struct nls_table *nls_cp) { int rc; - struct ntlmv2_resp * buf = (struct ntlmv2_resp *)resp_buf; + struct ntlmv2_resp *buf = (struct ntlmv2_resp *)resp_buf; + struct HMACMD5Context context; buf->blob_signature = cpu_to_le32(0x00000101); buf->reserved = 0; @@ -379,21 +395,31 @@ void setup_ntlmv2_rsp(struct cifsSesInfo * ses, char * resp_buf, /* calculate buf->ntlmv2_hash */ rc = calc_ntlmv2_hash(ses, nls_cp); - if(rc) - cERROR(1,("could not get v2 hash rc %d",rc)); + if (rc) + cERROR(1, ("could not get v2 hash rc %d", rc)); CalcNTLMv2_response(ses, resp_buf); + + /* now calculate the MAC key for NTLMv2 */ + hmac_md5_init_limK_to_64(ses->server->ntlmv2_hash, 16, &context); + hmac_md5_update(resp_buf, 16, &context); + hmac_md5_final(ses->server->mac_signing_key.data.ntlmv2.key, &context); + + memcpy(&ses->server->mac_signing_key.data.ntlmv2.resp, resp_buf, + sizeof(struct ntlmv2_resp)); + ses->server->mac_signing_key.len = 16 + sizeof(struct ntlmv2_resp); } -void CalcNTLMv2_response(const struct cifsSesInfo * ses, char * v2_session_response) +void CalcNTLMv2_response(const struct cifsSesInfo *ses, + char *v2_session_response) { struct HMACMD5Context context; /* rest of v2 struct already generated */ - memcpy(v2_session_response + 8, ses->server->cryptKey,8); - hmac_md5_init_limK_to_64(ses->server->mac_signing_key, 16, &context); + memcpy(v2_session_response + 8, ses->server->cryptKey, 8); + hmac_md5_init_limK_to_64(ses->server->ntlmv2_hash, 16, &context); - hmac_md5_update(v2_session_response+8, + hmac_md5_update(v2_session_response+8, sizeof(struct ntlmv2_resp) - 8, &context); - hmac_md5_final(v2_session_response,&context); + hmac_md5_final(v2_session_response, &context); /* cifs_dump_mem("v2_sess_rsp: ", v2_session_response, 32); */ } diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index bd0f2f2353c..1fd0dc85f53 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -64,23 +64,27 @@ unsigned int multiuser_mount = 0; unsigned int extended_security = CIFSSEC_DEF; /* unsigned int ntlmv2_support = 0; */ unsigned int sign_CIFS_PDUs = 1; -extern struct task_struct * oplockThread; /* remove sparse warning */ -struct task_struct * oplockThread = NULL; +extern struct task_struct *oplockThread; /* remove sparse warning */ +struct task_struct *oplockThread = NULL; /* extern struct task_struct * dnotifyThread; remove sparse warning */ -static struct task_struct * dnotifyThread = NULL; +static struct task_struct *dnotifyThread = NULL; static const struct super_operations cifs_super_ops; unsigned int CIFSMaxBufSize = CIFS_MAX_MSGSIZE; module_param(CIFSMaxBufSize, int, 0); -MODULE_PARM_DESC(CIFSMaxBufSize,"Network buffer size (not including header). Default: 16384 Range: 8192 to 130048"); +MODULE_PARM_DESC(CIFSMaxBufSize, "Network buffer size (not including header). " + "Default: 16384 Range: 8192 to 130048"); unsigned int cifs_min_rcv = CIFS_MIN_RCV_POOL; module_param(cifs_min_rcv, int, 0); -MODULE_PARM_DESC(cifs_min_rcv,"Network buffers in pool. Default: 4 Range: 1 to 64"); +MODULE_PARM_DESC(cifs_min_rcv, "Network buffers in pool. Default: 4 Range: " + "1 to 64"); unsigned int cifs_min_small = 30; module_param(cifs_min_small, int, 0); -MODULE_PARM_DESC(cifs_min_small,"Small network buffers in pool. Default: 30 Range: 2 to 256"); +MODULE_PARM_DESC(cifs_min_small, "Small network buffers in pool. Default: 30 " + "Range: 2 to 256"); unsigned int cifs_max_pending = CIFS_MAX_REQ; module_param(cifs_max_pending, int, 0); -MODULE_PARM_DESC(cifs_max_pending,"Simultaneous requests to server. Default: 50 Range: 2 to 256"); +MODULE_PARM_DESC(cifs_max_pending, "Simultaneous requests to server. " + "Default: 50 Range: 2 to 256"); extern mempool_t *cifs_sm_req_poolp; extern mempool_t *cifs_req_poolp; @@ -95,10 +99,10 @@ cifs_read_super(struct super_block *sb, void *data, struct inode *inode; struct cifs_sb_info *cifs_sb; int rc = 0; - + /* BB should we make this contingent on mount parm? */ sb->s_flags |= MS_NODIRATIME | MS_NOATIME; - sb->s_fs_info = kzalloc(sizeof(struct cifs_sb_info),GFP_KERNEL); + sb->s_fs_info = kzalloc(sizeof(struct cifs_sb_info), GFP_KERNEL); cifs_sb = CIFS_SB(sb); if (cifs_sb == NULL) return -ENOMEM; @@ -114,12 +118,9 @@ cifs_read_super(struct super_block *sb, void *data, sb->s_magic = CIFS_MAGIC_NUMBER; sb->s_op = &cifs_super_ops; -#ifdef CONFIG_CIFS_EXPERIMENTAL - if (experimEnabled != 0) - sb->s_export_op = &cifs_export_ops; -#endif /* EXPERIMENTAL */ /* if (cifs_sb->tcon->ses->server->maxBuf > MAX_CIFS_HDR_SIZE + 512) - sb->s_blocksize = cifs_sb->tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE; */ + sb->s_blocksize = + cifs_sb->tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE; */ #ifdef CONFIG_CIFS_QUOTA sb->s_qcop = &cifs_quotactl_ops; #endif @@ -139,6 +140,13 @@ cifs_read_super(struct super_block *sb, void *data, goto out_no_root; } +#ifdef CONFIG_CIFS_EXPERIMENTAL + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) { + cFYI(1, ("export ops supported")); + sb->s_export_op = &cifs_export_ops; + } +#endif /* EXPERIMENTAL */ + return 0; out_no_root: @@ -149,7 +157,7 @@ out_no_root: out_mount_failed: if (cifs_sb) { if (cifs_sb->local_nls) - unload_nls(cifs_sb->local_nls); + unload_nls(cifs_sb->local_nls); kfree(cifs_sb); } return rc; @@ -164,10 +172,10 @@ cifs_put_super(struct super_block *sb) cFYI(1, ("In cifs_put_super")); cifs_sb = CIFS_SB(sb); if (cifs_sb == NULL) { - cFYI(1,("Empty cifs superblock info passed to unmount")); + cFYI(1, ("Empty cifs superblock info passed to unmount")); return; } - rc = cifs_umount(sb, cifs_sb); + rc = cifs_umount(sb, cifs_sb); if (rc) { cERROR(1, ("cifs_umount failed with return code %d", rc)); } @@ -180,7 +188,7 @@ static int cifs_statfs(struct dentry *dentry, struct kstatfs *buf) { struct super_block *sb = dentry->d_sb; - int xid; + int xid; int rc = -EOPNOTSUPP; struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; @@ -193,7 +201,7 @@ cifs_statfs(struct dentry *dentry, struct kstatfs *buf) buf->f_type = CIFS_MAGIC_NUMBER; /* instead could get the real value via SMB_QUERY_FS_ATTRIBUTE_INFO */ - buf->f_namelen = PATH_MAX; /* PATH_MAX may be too long - it would + buf->f_namelen = PATH_MAX; /* PATH_MAX may be too long - it would presumably be total path, but note that some servers (includinng Samba 3) have a shorter maximum path */ @@ -217,8 +225,7 @@ cifs_statfs(struct dentry *dentry, struct kstatfs *buf) bypassed it because we detected that this was an older LANMAN sess */ if (rc) rc = SMBOldQFSInfo(xid, pTcon, buf); - /* - int f_type; + /* int f_type; __fsid_t f_fsid; int f_namelen; */ /* BB get from info in tcon struct at mount time call to QFSAttrInfo */ @@ -227,7 +234,7 @@ cifs_statfs(struct dentry *dentry, struct kstatfs *buf) longer available? */ } -static int cifs_permission(struct inode * inode, int mask, struct nameidata *nd) +static int cifs_permission(struct inode *inode, int mask, struct nameidata *nd) { struct cifs_sb_info *cifs_sb; @@ -235,10 +242,10 @@ static int cifs_permission(struct inode * inode, int mask, struct nameidata *nd) if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM) { return 0; - } else /* file mode might have been restricted at mount time - on the client (above and beyond ACL on servers) for + } else /* file mode might have been restricted at mount time + on the client (above and beyond ACL on servers) for servers which do not support setting and viewing mode bits, - so allowing client to check permissions is useful */ + so allowing client to check permissions is useful */ return generic_permission(inode, mask, NULL); } @@ -267,7 +274,7 @@ cifs_alloc_inode(struct super_block *sb) cifs_inode->clientCanCacheRead = FALSE; cifs_inode->clientCanCacheAll = FALSE; cifs_inode->vfs_inode.i_blkbits = 14; /* 2**14 = CIFS_MAX_MSGSIZE */ - + /* Can not set i_flags here - they get immediately overwritten to zero by the VFS */ /* cifs_inode->vfs_inode.i_flags = S_NOATIME | S_NOCMTIME;*/ @@ -309,26 +316,26 @@ cifs_show_options(struct seq_file *s, struct vfsmount *m) if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) seq_printf(s, ",posixpaths"); if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) || - !(cifs_sb->tcon->ses->capabilities & CAP_UNIX)) + !(cifs_sb->tcon->unix_ext)) seq_printf(s, ",uid=%d", cifs_sb->mnt_uid); if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) || - !(cifs_sb->tcon->ses->capabilities & CAP_UNIX)) + !(cifs_sb->tcon->unix_ext)) seq_printf(s, ",gid=%d", cifs_sb->mnt_gid); - seq_printf(s, ",rsize=%d",cifs_sb->rsize); - seq_printf(s, ",wsize=%d",cifs_sb->wsize); + seq_printf(s, ",rsize=%d", cifs_sb->rsize); + seq_printf(s, ",wsize=%d", cifs_sb->wsize); } return 0; } #ifdef CONFIG_CIFS_QUOTA -int cifs_xquota_set(struct super_block * sb, int quota_type, qid_t qid, - struct fs_disk_quota * pdquota) +int cifs_xquota_set(struct super_block *sb, int quota_type, qid_t qid, + struct fs_disk_quota *pdquota) { int xid; int rc = 0; struct cifs_sb_info *cifs_sb = CIFS_SB(sb); struct cifsTconInfo *pTcon; - + if (cifs_sb) pTcon = cifs_sb->tcon; else @@ -337,7 +344,7 @@ int cifs_xquota_set(struct super_block * sb, int quota_type, qid_t qid, xid = GetXid(); if (pTcon) { - cFYI(1,("set type: 0x%x id: %d",quota_type,qid)); + cFYI(1, ("set type: 0x%x id: %d", quota_type, qid)); } else { return -EIO; } @@ -346,8 +353,8 @@ int cifs_xquota_set(struct super_block * sb, int quota_type, qid_t qid, return rc; } -int cifs_xquota_get(struct super_block * sb, int quota_type, qid_t qid, - struct fs_disk_quota * pdquota) +int cifs_xquota_get(struct super_block *sb, int quota_type, qid_t qid, + struct fs_disk_quota *pdquota) { int xid; int rc = 0; @@ -361,7 +368,7 @@ int cifs_xquota_get(struct super_block * sb, int quota_type, qid_t qid, xid = GetXid(); if (pTcon) { - cFYI(1,("set type: 0x%x id: %d",quota_type,qid)); + cFYI(1, ("set type: 0x%x id: %d", quota_type, qid)); } else { rc = -EIO; } @@ -370,9 +377,9 @@ int cifs_xquota_get(struct super_block * sb, int quota_type, qid_t qid, return rc; } -int cifs_xstate_set(struct super_block * sb, unsigned int flags, int operation) +int cifs_xstate_set(struct super_block *sb, unsigned int flags, int operation) { - int xid; + int xid; int rc = 0; struct cifs_sb_info *cifs_sb = CIFS_SB(sb); struct cifsTconInfo *pTcon; @@ -384,7 +391,7 @@ int cifs_xstate_set(struct super_block * sb, unsigned int flags, int operation) xid = GetXid(); if (pTcon) { - cFYI(1,("flags: 0x%x operation: 0x%x",flags,operation)); + cFYI(1, ("flags: 0x%x operation: 0x%x", flags, operation)); } else { rc = -EIO; } @@ -393,7 +400,7 @@ int cifs_xstate_set(struct super_block * sb, unsigned int flags, int operation) return rc; } -int cifs_xstate_get(struct super_block * sb, struct fs_quota_stat *qstats) +int cifs_xstate_get(struct super_block *sb, struct fs_quota_stat *qstats) { int xid; int rc = 0; @@ -407,7 +414,7 @@ int cifs_xstate_get(struct super_block * sb, struct fs_quota_stat *qstats) } xid = GetXid(); if (pTcon) { - cFYI(1,("pqstats %p",qstats)); + cFYI(1, ("pqstats %p", qstats)); } else { rc = -EIO; } @@ -424,10 +431,10 @@ static struct quotactl_ops cifs_quotactl_ops = { }; #endif -static void cifs_umount_begin(struct vfsmount * vfsmnt, int flags) +static void cifs_umount_begin(struct vfsmount *vfsmnt, int flags) { struct cifs_sb_info *cifs_sb; - struct cifsTconInfo * tcon; + struct cifsTconInfo *tcon; if (!(flags & MNT_FORCE)) return; @@ -445,9 +452,8 @@ static void cifs_umount_begin(struct vfsmount * vfsmnt, int flags) /* cancel_brl_requests(tcon); */ /* BB mark all brl mids as exiting */ /* cancel_notify_requests(tcon); */ - if (tcon->ses && tcon->ses->server) - { - cFYI(1,("wake up tasks now - umount begin not complete")); + if (tcon->ses && tcon->ses->server) { + cFYI(1, ("wake up tasks now - umount begin not complete")); wake_up_all(&tcon->ses->server->request_q); wake_up_all(&tcon->ses->server->response_q); msleep(1); /* yield */ @@ -480,10 +486,11 @@ static const struct super_operations cifs_super_ops = { .statfs = cifs_statfs, .alloc_inode = cifs_alloc_inode, .destroy_inode = cifs_destroy_inode, -/* .drop_inode = generic_delete_inode, - .delete_inode = cifs_delete_inode, *//* Do not need the above two functions - unless later we add lazy close of inodes or unless the kernel forgets to call - us with the same number of releases (closes) as opens */ +/* .drop_inode = generic_delete_inode, + .delete_inode = cifs_delete_inode, */ /* Do not need above two + functions unless later we add lazy close of inodes or unless the + kernel forgets to call us with the same number of releases (closes) + as opens */ .show_options = cifs_show_options, .umount_begin = cifs_umount_begin, .remount_fs = cifs_remount, @@ -586,11 +593,11 @@ const struct inode_operations cifs_file_inode_ops = { .getxattr = cifs_getxattr, .listxattr = cifs_listxattr, .removexattr = cifs_removexattr, -#endif +#endif }; const struct inode_operations cifs_symlink_inode_ops = { - .readlink = generic_readlink, + .readlink = generic_readlink, .follow_link = cifs_follow_link, .put_link = cifs_put_link, .permission = cifs_permission, @@ -602,7 +609,7 @@ const struct inode_operations cifs_symlink_inode_ops = { .getxattr = cifs_getxattr, .listxattr = cifs_listxattr, .removexattr = cifs_removexattr, -#endif +#endif }; const struct file_operations cifs_file_ops = { @@ -628,7 +635,7 @@ const struct file_operations cifs_file_ops = { }; const struct file_operations cifs_file_direct_ops = { - /* no mmap, no aio, no readv - + /* no mmap, no aio, no readv - BB reevaluate whether they can be done with directio, no cache */ .read = cifs_user_read, .write = cifs_user_write, @@ -668,7 +675,7 @@ const struct file_operations cifs_file_nobrl_ops = { }; const struct file_operations cifs_file_direct_nobrl_ops = { - /* no mmap, no aio, no readv - + /* no mmap, no aio, no readv - BB reevaluate whether they can be done with directio, no cache */ .read = cifs_user_read, .write = cifs_user_write, @@ -693,11 +700,11 @@ const struct file_operations cifs_dir_ops = { #ifdef CONFIG_CIFS_EXPERIMENTAL .dir_notify = cifs_dir_notify, #endif /* CONFIG_CIFS_EXPERIMENTAL */ - .ioctl = cifs_ioctl, + .ioctl = cifs_ioctl, }; static void -cifs_init_once(void *inode, struct kmem_cache * cachep, unsigned long flags) +cifs_init_once(void *inode, struct kmem_cache *cachep, unsigned long flags) { struct cifsInodeInfo *cifsi = inode; @@ -749,7 +756,7 @@ cifs_init_request_bufs(void) cifs_min_rcv = 1; else if (cifs_min_rcv > 64) { cifs_min_rcv = 64; - cERROR(1,("cifs_min_rcv set to maximum (64)")); + cERROR(1, ("cifs_min_rcv set to maximum (64)")); } cifs_req_poolp = mempool_create_slab_pool(cifs_min_rcv, @@ -762,25 +769,25 @@ cifs_init_request_bufs(void) /* MAX_CIFS_SMALL_BUFFER_SIZE bytes is enough for most SMB responses and almost all handle based requests (but not write response, nor is it sufficient for path based requests). A smaller size would have - been more efficient (compacting multiple slab items on one 4k page) + been more efficient (compacting multiple slab items on one 4k page) for the case in which debug was on, but this larger size allows more SMBs to use small buffer alloc and is still much more - efficient to alloc 1 per page off the slab compared to 17K (5page) + efficient to alloc 1 per page off the slab compared to 17K (5page) alloc of large cifs buffers even when page debugging is on */ cifs_sm_req_cachep = kmem_cache_create("cifs_small_rq", - MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN, + MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN, NULL, NULL); if (cifs_sm_req_cachep == NULL) { mempool_destroy(cifs_req_poolp); kmem_cache_destroy(cifs_req_cachep); - return -ENOMEM; + return -ENOMEM; } if (cifs_min_small < 2) cifs_min_small = 2; else if (cifs_min_small > 256) { cifs_min_small = 256; - cFYI(1,("cifs_min_small set to maximum (256)")); + cFYI(1, ("cifs_min_small set to maximum (256)")); } cifs_sm_req_poolp = mempool_create_slab_pool(cifs_min_small, @@ -841,42 +848,43 @@ cifs_destroy_mids(void) kmem_cache_destroy(cifs_oplock_cachep); } -static int cifs_oplock_thread(void * dummyarg) +static int cifs_oplock_thread(void *dummyarg) { - struct oplock_q_entry * oplock_item; + struct oplock_q_entry *oplock_item; struct cifsTconInfo *pTcon; - struct inode * inode; + struct inode *inode; __u16 netfid; int rc; set_freezable(); do { - if (try_to_freeze()) + if (try_to_freeze()) continue; - + spin_lock(&GlobalMid_Lock); if (list_empty(&GlobalOplock_Q)) { spin_unlock(&GlobalMid_Lock); set_current_state(TASK_INTERRUPTIBLE); schedule_timeout(39*HZ); } else { - oplock_item = list_entry(GlobalOplock_Q.next, + oplock_item = list_entry(GlobalOplock_Q.next, struct oplock_q_entry, qhead); if (oplock_item) { - cFYI(1,("found oplock item to write out")); + cFYI(1, ("found oplock item to write out")); pTcon = oplock_item->tcon; inode = oplock_item->pinode; netfid = oplock_item->netfid; spin_unlock(&GlobalMid_Lock); DeleteOplockQEntry(oplock_item); /* can not grab inode sem here since it would - deadlock when oplock received on delete + deadlock when oplock received on delete since vfs_unlink holds the i_mutex across the call */ /* mutex_lock(&inode->i_mutex);*/ if (S_ISREG(inode->i_mode)) { rc = filemap_fdatawrite(inode->i_mapping); - if (CIFS_I(inode)->clientCanCacheRead == 0) { + if (CIFS_I(inode)->clientCanCacheRead + == 0) { filemap_fdatawait(inode->i_mapping); invalidate_remote_inode(inode); } @@ -885,20 +893,22 @@ static int cifs_oplock_thread(void * dummyarg) /* mutex_unlock(&inode->i_mutex);*/ if (rc) CIFS_I(inode)->write_behind_rc = rc; - cFYI(1,("Oplock flush inode %p rc %d",inode,rc)); - - /* releasing a stale oplock after recent reconnection - of smb session using a now incorrect file - handle is not a data integrity issue but do - not bother sending an oplock release if session - to server still is disconnected since oplock + cFYI(1, ("Oplock flush inode %p rc %d", + inode, rc)); + + /* releasing stale oplock after recent reconnect + of smb session using a now incorrect file + handle is not a data integrity issue but do + not bother sending an oplock release if session + to server still is disconnected since oplock already released by the server in that case */ if (pTcon->tidStatus != CifsNeedReconnect) { rc = CIFSSMBLock(0, pTcon, netfid, - 0 /* len */ , 0 /* offset */, 0, + 0 /* len */ , 0 /* offset */, 0, 0, LOCKING_ANDX_OPLOCK_RELEASE, 0 /* wait flag */); - cFYI(1,("Oplock release rc = %d ",rc)); + cFYI(1, + ("Oplock release rc = %d ", rc)); } } else spin_unlock(&GlobalMid_Lock); @@ -910,7 +920,7 @@ static int cifs_oplock_thread(void * dummyarg) return 0; } -static int cifs_dnotify_thread(void * dummyarg) +static int cifs_dnotify_thread(void *dummyarg) { struct list_head *tmp; struct cifsSesInfo *ses; @@ -925,9 +935,9 @@ static int cifs_dnotify_thread(void * dummyarg) to be woken up and wakeq so the thread can wake up and error out */ list_for_each(tmp, &GlobalSMBSessionList) { - ses = list_entry(tmp, struct cifsSesInfo, + ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList); - if (ses && ses->server && + if (ses && ses->server && atomic_read(&ses->server->inFlight)) wake_up_all(&ses->server->response_q); } @@ -951,13 +961,13 @@ init_cifs(void) #ifdef CONFIG_CIFS_EXPERIMENTAL INIT_LIST_HEAD(&GlobalDnotifyReqList); INIT_LIST_HEAD(&GlobalDnotifyRsp_Q); -#endif +#endif /* * Initialize Global counters */ atomic_set(&sesInfoAllocCount, 0); atomic_set(&tconInfoAllocCount, 0); - atomic_set(&tcpSesAllocCount,0); + atomic_set(&tcpSesAllocCount, 0); atomic_set(&tcpSesReconnectCount, 0); atomic_set(&tconInfoReconnectCount, 0); @@ -978,10 +988,10 @@ init_cifs(void) if (cifs_max_pending < 2) { cifs_max_pending = 2; - cFYI(1,("cifs_max_pending set to min of 2")); + cFYI(1, ("cifs_max_pending set to min of 2")); } else if (cifs_max_pending > 256) { cifs_max_pending = 256; - cFYI(1,("cifs_max_pending set to max of 256")); + cFYI(1, ("cifs_max_pending set to max of 256")); } rc = cifs_init_inodecache(); @@ -1003,14 +1013,14 @@ init_cifs(void) oplockThread = kthread_run(cifs_oplock_thread, NULL, "cifsoplockd"); if (IS_ERR(oplockThread)) { rc = PTR_ERR(oplockThread); - cERROR(1,("error %d create oplock thread", rc)); + cERROR(1, ("error %d create oplock thread", rc)); goto out_unregister_filesystem; } dnotifyThread = kthread_run(cifs_dnotify_thread, NULL, "cifsdnotifyd"); if (IS_ERR(dnotifyThread)) { rc = PTR_ERR(dnotifyThread); - cERROR(1,("error %d create dnotify thread", rc)); + cERROR(1, ("error %d create dnotify thread", rc)); goto out_stop_oplock_thread; } @@ -1036,7 +1046,7 @@ init_cifs(void) static void __exit exit_cifs(void) { - cFYI(0, ("In unregister ie exit_cifs")); + cFYI(0, ("exit_cifs")); #ifdef CONFIG_PROC_FS cifs_proc_clean(); #endif @@ -1049,9 +1059,10 @@ exit_cifs(void) } MODULE_AUTHOR("Steve French <sfrench@us.ibm.com>"); -MODULE_LICENSE("GPL"); /* combination of LGPL + GPL source behaves as GPL */ +MODULE_LICENSE("GPL"); /* combination of LGPL + GPL source behaves as GPL */ MODULE_DESCRIPTION - ("VFS to access servers complying with the SNIA CIFS Specification e.g. Samba and Windows"); + ("VFS to access servers complying with the SNIA CIFS Specification " + "e.g. Samba and Windows"); MODULE_VERSION(CIFS_VERSION); module_init(init_cifs) module_exit(exit_cifs) diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h index c235d32ad4a..a20de77a385 100644 --- a/fs/cifs/cifsfs.h +++ b/fs/cifs/cifsfs.h @@ -16,7 +16,7 @@ * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _CIFSFS_H @@ -43,9 +43,9 @@ extern void cifs_read_inode(struct inode *); /* Functions related to inodes */ extern const struct inode_operations cifs_dir_inode_ops; -extern int cifs_create(struct inode *, struct dentry *, int, +extern int cifs_create(struct inode *, struct dentry *, int, struct nameidata *); -extern struct dentry * cifs_lookup(struct inode *, struct dentry *, +extern struct dentry *cifs_lookup(struct inode *, struct dentry *, struct nameidata *); extern int cifs_unlink(struct inode *, struct dentry *); extern int cifs_hardlink(struct dentry *, struct inode *, struct dentry *); @@ -63,16 +63,16 @@ extern const struct inode_operations cifs_symlink_inode_ops; /* Functions related to files and directories */ extern const struct file_operations cifs_file_ops; -extern const struct file_operations cifs_file_direct_ops; /* if directio mount */ +extern const struct file_operations cifs_file_direct_ops; /* if directio mnt */ extern const struct file_operations cifs_file_nobrl_ops; -extern const struct file_operations cifs_file_direct_nobrl_ops; /* if directio mount */ +extern const struct file_operations cifs_file_direct_nobrl_ops; /* no brlocks */ extern int cifs_open(struct inode *inode, struct file *file); extern int cifs_close(struct inode *inode, struct file *file); extern int cifs_closedir(struct inode *inode, struct file *file); extern ssize_t cifs_user_read(struct file *file, char __user *read_data, - size_t read_size, loff_t * poffset); + size_t read_size, loff_t *poffset); extern ssize_t cifs_user_write(struct file *file, const char __user *write_data, - size_t write_size, loff_t * poffset); + size_t write_size, loff_t *poffset); extern int cifs_lock(struct file *, int, struct file_lock *); extern int cifs_fsync(struct file *, struct dentry *, int); extern int cifs_flush(struct file *, fl_owner_t id); @@ -88,8 +88,9 @@ extern struct dentry_operations cifs_ci_dentry_ops; /* Functions related to symlinks */ extern void *cifs_follow_link(struct dentry *direntry, struct nameidata *nd); -extern void cifs_put_link(struct dentry *direntry, struct nameidata *nd, void *); -extern int cifs_readlink(struct dentry *direntry, char __user *buffer, +extern void cifs_put_link(struct dentry *direntry, + struct nameidata *nd, void *); +extern int cifs_readlink(struct dentry *direntry, char __user *buffer, int buflen); extern int cifs_symlink(struct inode *inode, struct dentry *direntry, const char *symname); @@ -98,7 +99,7 @@ extern int cifs_setxattr(struct dentry *, const char *, const void *, size_t, int); extern ssize_t cifs_getxattr(struct dentry *, const char *, void *, size_t); extern ssize_t cifs_listxattr(struct dentry *, char *, size_t); -extern int cifs_ioctl (struct inode * inode, struct file * filep, +extern int cifs_ioctl (struct inode *inode, struct file *filep, unsigned int command, unsigned long arg); -#define CIFS_VERSION "1.49" +#define CIFS_VERSION "1.50" #endif /* _CIFSFS_H */ diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 23655de2f4a..b98742fc3b5 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -1,7 +1,7 @@ /* * fs/cifs/cifsglob.h * - * Copyright (C) International Business Machines Corp., 2002,2006 + * Copyright (C) International Business Machines Corp., 2002,2007 * Author(s): Steve French (sfrench@us.ibm.com) * Jeremy Allison (jra@samba.org) * @@ -14,7 +14,7 @@ * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See * the GNU Lesser General Public License for more details. - * + * */ #include <linux/in.h> #include <linux/in6.h> @@ -28,7 +28,7 @@ #define MAX_TREE_SIZE 2 + MAX_SERVER_SIZE + 1 + MAX_SHARE_SIZE + 1 #define MAX_SERVER_SIZE 15 -#define MAX_SHARE_SIZE 64 /* used to be 20 - this should still be enough */ +#define MAX_SHARE_SIZE 64 /* used to be 20, this should still be enough */ #define MAX_USERNAME_SIZE 32 /* 32 is to allow for 15 char names + null termination then *2 for unicode versions */ #define MAX_PASSWORD_SIZE 16 @@ -38,13 +38,13 @@ /* * MAX_REQ is the maximum number of requests that WE will send * on one socket concurently. It also matches the most common - * value of max multiplex returned by servers. We may + * value of max multiplex returned by servers. We may * eventually want to use the negotiated value (in case * future servers can handle more) when we are more confident that * we will not have problems oveloading the socket with pending * write data. */ -#define CIFS_MAX_REQ 50 +#define CIFS_MAX_REQ 50 #define SERVER_NAME_LENGTH 15 #define SERVER_NAME_LEN_WITH_NULL (SERVER_NAME_LENGTH + 1) @@ -104,6 +104,17 @@ enum protocolEnum { /* Netbios frames protocol not supported at this time */ }; +struct mac_key { + unsigned int len; + union { + char ntlm[CIFS_SESS_KEY_SIZE + 16]; + struct { + char key[16]; + struct ntlmv2_resp resp; + } ntlmv2; + } data; +}; + /* ***************************************************************** * Except the CIFS PDUs themselves all the @@ -120,13 +131,13 @@ struct TCP_Server_Info { struct sockaddr_in sockAddr; struct sockaddr_in6 sockAddr6; } addr; - wait_queue_head_t response_q; + wait_queue_head_t response_q; wait_queue_head_t request_q; /* if more than maxmpx to srvr must block*/ struct list_head pending_mid_q; void *Server_NlsInfo; /* BB - placeholder for future NLS info */ unsigned short server_codepage; /* codepage for the server */ unsigned long ip_address; /* IP addr for the server if known */ - enum protocolEnum protocolType; + enum protocolEnum protocolType; char versionMajor; char versionMinor; unsigned svlocal:1; /* local server or remote */ @@ -159,14 +170,15 @@ struct TCP_Server_Info { /* 16th byte of RFC1001 workstation name is always null */ char workstation_RFC1001_name[SERVER_NAME_LEN_WITH_NULL]; __u32 sequence_number; /* needed for CIFS PDU signature */ - char mac_signing_key[CIFS_SESS_KEY_SIZE + 16]; + struct mac_key mac_signing_key; + char ntlmv2_hash[16]; unsigned long lstrp; /* when we got last response from this server */ }; /* * The following is our shortcut to user information. We surface the uid, * and name. We always get the password on the fly in case it - * has changed. We also hang a list of sessions owned by this user off here. + * has changed. We also hang a list of sessions owned by this user off here. */ struct cifsUidInfo { struct list_head userList; @@ -197,11 +209,11 @@ struct cifsSesInfo { int Suid; /* remote smb uid */ uid_t linux_uid; /* local Linux uid */ int capabilities; - char serverName[SERVER_NAME_LEN_WITH_NULL * 2]; /* BB make bigger for + char serverName[SERVER_NAME_LEN_WITH_NULL * 2]; /* BB make bigger for TCP names - will ipv6 and sctp addresses fit? */ char userName[MAX_USERNAME_SIZE + 1]; - char * domainName; - char * password; + char *domainName; + char *password; }; /* no more than one of the following three session flags may be set */ #define CIFS_SES_NT4 1 @@ -213,7 +225,7 @@ struct cifsSesInfo { #define CIFS_SES_LANMAN 8 /* * there is one of these for each connection to a resource on a particular - * session + * session */ struct cifsTconInfo { struct list_head cifsConnectionList; @@ -269,7 +281,9 @@ struct cifsTconInfo { FILE_SYSTEM_UNIX_INFO fsUnixInfo; unsigned retry:1; unsigned nocase:1; - /* BB add field for back pointer to sb struct? */ + unsigned unix_ext:1; /* if off disable Linux extensions to CIFS protocol + for this mount even if server would support */ + /* BB add field for back pointer to sb struct(s)? */ }; /* @@ -291,9 +305,9 @@ struct cifs_search_info { __u16 entries_in_buffer; __u16 info_level; __u32 resume_key; - char * ntwrk_buf_start; - char * srch_entries_start; - char * presume_name; + char *ntwrk_buf_start; + char *srch_entries_start; + char *presume_name; unsigned int resume_name_len; unsigned endOfSearch:1; unsigned emptyDir:1; @@ -309,15 +323,15 @@ struct cifsFileInfo { __u16 netfid; /* file id from remote */ /* BB add lock scope info here if needed */ ; /* lock scope id (0 if none) */ - struct file * pfile; /* needed for writepage */ - struct inode * pInode; /* needed for oplock break */ + struct file *pfile; /* needed for writepage */ + struct inode *pInode; /* needed for oplock break */ struct mutex lock_mutex; struct list_head llist; /* list of byte range locks we have. */ unsigned closePend:1; /* file is marked to close */ unsigned invalidHandle:1; /* file closed via session abend */ atomic_t wrtPending; /* handle in use - defer close */ struct semaphore fh_sem; /* prevents reopen race after dead ses*/ - char * search_resume_name; /* BB removeme BB */ + char *search_resume_name; /* BB removeme BB */ struct cifs_search_info srch_inf; }; @@ -327,7 +341,7 @@ struct cifsFileInfo { struct cifsInodeInfo { struct list_head lockList; - /* BB add in lists for dirty pages - i.e. write caching info for oplock */ + /* BB add in lists for dirty pages i.e. write caching info for oplock */ struct list_head openFileList; int write_behind_rc; __u32 cifsAttrs; /* e.g. DOS archive bit, sparse, compressed, system */ @@ -381,9 +395,9 @@ static inline void cifs_stats_bytes_read(struct cifsTconInfo *tcon, } #else -#define cifs_stats_inc(field) do {} while(0) -#define cifs_stats_bytes_written(tcon, bytes) do {} while(0) -#define cifs_stats_bytes_read(tcon, bytes) do {} while(0) +#define cifs_stats_inc(field) do {} while (0) +#define cifs_stats_bytes_written(tcon, bytes) do {} while (0) +#define cifs_stats_bytes_read(tcon, bytes) do {} while (0) #endif @@ -410,8 +424,8 @@ struct mid_q_entry { struct oplock_q_entry { struct list_head qhead; - struct inode * pinode; - struct cifsTconInfo * tcon; + struct inode *pinode; + struct cifsTconInfo *tcon; __u16 netfid; }; @@ -426,7 +440,7 @@ struct dir_notify_req { __u16 netfid; __u32 filter; /* CompletionFilter (for multishot) */ int multishot; - struct file * pfile; + struct file *pfile; }; #define MID_FREE 0 @@ -464,7 +478,7 @@ require use of the stronger protocol */ #define CIFSSEC_MUST_LANMAN 0x10010 #define CIFSSEC_MUST_PLNTXT 0x20020 #define CIFSSEC_MASK 0x37037 /* current flags supported if weak */ -#else +#else #define CIFSSEC_MASK 0x07007 /* flags supported if no weak config */ #endif /* WEAK_PW_HASH */ #define CIFSSEC_MUST_SEAL 0x40040 /* not supported yet */ @@ -502,7 +516,7 @@ require use of the stronger protocol */ * ---------- * sesSem operations on smb session * tconSem operations on tree connection - * fh_sem file handle reconnection operations + * fh_sem file handle reconnection operations * ****************************************************************************/ @@ -515,7 +529,7 @@ require use of the stronger protocol */ /* * The list of servers that did not respond with NT LM 0.12. * This list helps improve performance and eliminate the messages indicating - * that we had a communications error talking to the server in this list. + * that we had a communications error talking to the server in this list. */ /* Feature not supported */ /* GLOBAL_EXTERN struct servers_not_supported *NotSuppList; */ @@ -568,12 +582,12 @@ GLOBAL_EXTERN atomic_t midCount; /* Misc globals */ GLOBAL_EXTERN unsigned int multiuser_mount; /* if enabled allows new sessions to be established on existing mount if we - have the uid/password or Kerberos credential + have the uid/password or Kerberos credential or equivalent for current user */ GLOBAL_EXTERN unsigned int oplockEnabled; GLOBAL_EXTERN unsigned int experimEnabled; GLOBAL_EXTERN unsigned int lookupCacheEnabled; -GLOBAL_EXTERN unsigned int extended_security; /* if on, session setup sent +GLOBAL_EXTERN unsigned int extended_security; /* if on, session setup sent with more secure ntlmssp2 challenge/resp */ GLOBAL_EXTERN unsigned int sign_CIFS_PDUs; /* enable smb packet signing */ GLOBAL_EXTERN unsigned int linuxExtEnabled;/*enable Linux/Unix CIFS extensions*/ diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h index d619ca7d141..6a2056e58ce 100644 --- a/fs/cifs/cifspdu.h +++ b/fs/cifs/cifspdu.h @@ -144,7 +144,7 @@ #define SMBOPEN_OAPPEND 0x0001 /* - * SMB flag definitions + * SMB flag definitions */ #define SMBFLG_EXTD_LOCK 0x01 /* server supports lock-read write-unlock smb */ #define SMBFLG_RCV_POSTED 0x02 /* obsolete */ @@ -157,9 +157,9 @@ #define SMBFLG_RESPONSE 0x80 /* this PDU is a response from server */ /* - * SMB flag2 definitions + * SMB flag2 definitions */ -#define SMBFLG2_KNOWS_LONG_NAMES cpu_to_le16(1) /* can send long (non-8.3) +#define SMBFLG2_KNOWS_LONG_NAMES cpu_to_le16(1) /* can send long (non-8.3) path names in response */ #define SMBFLG2_KNOWS_EAS cpu_to_le16(2) #define SMBFLG2_SECURITY_SIGNATURE cpu_to_le16(4) @@ -260,7 +260,7 @@ #define ATTR_SPARSE 0x0200 #define ATTR_REPARSE 0x0400 #define ATTR_COMPRESSED 0x0800 -#define ATTR_OFFLINE 0x1000 /* ie file not immediately available - +#define ATTR_OFFLINE 0x1000 /* ie file not immediately available - on offline storage */ #define ATTR_NOT_CONTENT_INDEXED 0x2000 #define ATTR_ENCRYPTED 0x4000 @@ -300,7 +300,7 @@ #define CREATE_DELETE_ON_CLOSE 0x00001000 #define CREATE_OPEN_BY_ID 0x00002000 #define OPEN_REPARSE_POINT 0x00200000 -#define CREATE_OPTIONS_MASK 0x007FFFFF +#define CREATE_OPTIONS_MASK 0x007FFFFF #define CREATE_OPTION_SPECIAL 0x20000000 /* system. NB not sent over wire */ /* ImpersonationLevel flags */ @@ -366,17 +366,19 @@ struct smb_hdr { #define pByteArea(smb_var) ((unsigned char *)smb_var + sizeof(struct smb_hdr) + (2* smb_var->WordCount) + 2 ) /* - * Computer Name Length + * Computer Name Length (since Netbios name was length 16 with last byte 0x20) + * No longer as important, now that TCP names are more commonly used to + * resolve hosts. */ #define CNLEN 15 /* - * Share Name Length @S8A - * Note: This length is limited by the SMB used to get @S8A - * the Share info. NetShareEnum only returns 13 @S8A - * chars, including the null termination. @S8A + * Share Name Length (SNLEN) + * Note: This length was limited by the SMB used to get + * the Share info. NetShareEnum only returned 13 + * chars, including the null termination. + * This was removed because it no longer is limiting. */ -#define SNLEN 12 /*@S8A */ /* * Comment Length @@ -394,8 +396,8 @@ struct smb_hdr { * * The Naming convention is the lower case version of the * smb command code name for the struct and this is typedef to the - * uppercase version of the same name with the prefix SMB_ removed - * for brevity. Although typedefs are not commonly used for + * uppercase version of the same name with the prefix SMB_ removed + * for brevity. Although typedefs are not commonly used for * structure definitions in the Linux kernel, their use in the * CIFS standards document, which this code is based on, may * make this one of the cases where typedefs for structures make @@ -403,7 +405,7 @@ struct smb_hdr { * Typedefs can always be removed later if they are too distracting * and they are only used for the CIFSs PDUs themselves, not * internal cifs vfs structures - * + * */ typedef struct negotiate_req { @@ -511,7 +513,7 @@ typedef union smb_com_session_setup_andx { unsigned char SecurityBlob[1]; /* followed by */ /* STRING NativeOS */ /* STRING NativeLanMan */ - } __attribute__((packed)) req; /* NTLM request format (with + } __attribute__((packed)) req; /* NTLM request format (with extended security */ struct { /* request format */ @@ -549,7 +551,7 @@ typedef union smb_com_session_setup_andx { /* unsigned char * NativeOS; */ /* unsigned char * NativeLanMan; */ /* unsigned char * PrimaryDomain; */ - } __attribute__((packed)) resp; /* NTLM response + } __attribute__((packed)) resp; /* NTLM response (with or without extended sec) */ struct { /* request format */ @@ -618,7 +620,7 @@ struct ntlmv2_resp { #define CAP_NT_SMBS 0x00000010 #define CAP_STATUS32 0x00000040 #define CAP_LEVEL_II_OPLOCKS 0x00000080 -#define CAP_NT_FIND 0x00000200 /* reserved should be zero +#define CAP_NT_FIND 0x00000200 /* reserved should be zero (because NT_SMBs implies the same thing?) */ #define CAP_BULK_TRANSFER 0x20000000 #define CAP_EXTENDED_SECURITY 0x80000000 @@ -676,7 +678,7 @@ typedef struct smb_com_logoff_andx_rsp { __u16 ByteCount; } __attribute__((packed)) LOGOFF_ANDX_RSP; -typedef union smb_com_tree_disconnect { /* as an altetnative can use flag on +typedef union smb_com_tree_disconnect { /* as an altetnative can use flag on tree_connect PDU to effect disconnect */ /* tdis is probably simplest SMB PDU */ struct { @@ -712,6 +714,7 @@ typedef struct smb_com_findclose_req { #define REQ_OPLOCK 0x00000002 #define REQ_BATCHOPLOCK 0x00000004 #define REQ_OPENDIRONLY 0x00000008 +#define REQ_EXTENDED_INFO 0x00000010 typedef struct smb_com_open_req { /* also handles create */ struct smb_hdr hdr; /* wct = 24 */ @@ -799,27 +802,28 @@ typedef struct smb_com_openx_rsp { __u32 FileId; __u16 Reserved; __u16 ByteCount; -} __attribute__((packed)) OPENX_RSP; +} __attribute__((packed)) OPENX_RSP; /* For encoding of POSIX Open Request - see trans2 function 0x209 data struct */ /* Legacy write request for older servers */ typedef struct smb_com_writex_req { - struct smb_hdr hdr; /* wct = 12 */ - __u8 AndXCommand; - __u8 AndXReserved; - __le16 AndXOffset; - __u16 Fid; - __le32 OffsetLow; - __u32 Reserved; /* Timeout */ - __le16 WriteMode; /* 1 = write through */ - __le16 Remaining; - __le16 Reserved2; - __le16 DataLengthLow; - __le16 DataOffset; - __le16 ByteCount; - __u8 Pad; /* BB check for whether padded to DWORD boundary and optimum performance here */ - char Data[0]; + struct smb_hdr hdr; /* wct = 12 */ + __u8 AndXCommand; + __u8 AndXReserved; + __le16 AndXOffset; + __u16 Fid; + __le32 OffsetLow; + __u32 Reserved; /* Timeout */ + __le16 WriteMode; /* 1 = write through */ + __le16 Remaining; + __le16 Reserved2; + __le16 DataLengthLow; + __le16 DataOffset; + __le16 ByteCount; + __u8 Pad; /* BB check for whether padded to DWORD + boundary and optimum performance here */ + char Data[0]; } __attribute__((packed)) WRITEX_REQ; typedef struct smb_com_write_req { @@ -837,7 +841,8 @@ typedef struct smb_com_write_req { __le16 DataOffset; __le32 OffsetHigh; __le16 ByteCount; - __u8 Pad; /* BB check for whether padded to DWORD boundary and optimum performance here */ + __u8 Pad; /* BB check for whether padded to DWORD + boundary and optimum performance here */ char Data[0]; } __attribute__((packed)) WRITE_REQ; @@ -855,17 +860,17 @@ typedef struct smb_com_write_rsp { /* legacy read request for older servers */ typedef struct smb_com_readx_req { - struct smb_hdr hdr; /* wct = 10 */ - __u8 AndXCommand; - __u8 AndXReserved; - __le16 AndXOffset; - __u16 Fid; - __le32 OffsetLow; - __le16 MaxCount; - __le16 MinCount; /* obsolete */ - __le32 Reserved; - __le16 Remaining; - __le16 ByteCount; + struct smb_hdr hdr; /* wct = 10 */ + __u8 AndXCommand; + __u8 AndXReserved; + __le16 AndXOffset; + __u16 Fid; + __le32 OffsetLow; + __le16 MaxCount; + __le16 MinCount; /* obsolete */ + __le32 Reserved; + __le16 Remaining; + __le16 ByteCount; } __attribute__((packed)) READX_REQ; typedef struct smb_com_read_req { @@ -896,7 +901,8 @@ typedef struct smb_com_read_rsp { __le16 DataLengthHigh; __u64 Reserved2; __u16 ByteCount; - __u8 Pad; /* BB check for whether padded to DWORD boundary and optimum performance here */ + __u8 Pad; /* BB check for whether padded to DWORD + boundary and optimum performance here */ char Data[1]; } __attribute__((packed)) READ_RSP; @@ -967,7 +973,7 @@ typedef struct smb_com_rename_req { #define COPY_TARGET_MODE_ASCII 0x0004 /* if not set, binary */ #define COPY_SOURCE_MODE_ASCII 0x0008 /* if not set, binary */ #define COPY_VERIFY_WRITES 0x0010 -#define COPY_TREE 0x0020 +#define COPY_TREE 0x0020 typedef struct smb_com_copy_req { struct smb_hdr hdr; /* wct = 3 */ @@ -975,7 +981,7 @@ typedef struct smb_com_copy_req { __le16 OpenFunction; __le16 Flags; __le16 ByteCount; - __u8 BufferFormat; /* 4 = ASCII or Unicode */ + __u8 BufferFormat; /* 4 = ASCII or Unicode */ unsigned char OldFileName[1]; /* followed by __u8 BufferFormat2 */ /* followed by NewFileName string */ @@ -1083,28 +1089,28 @@ typedef struct smb_com_setattr_rsp { /*******************************************************/ /* NT Transact structure defintions follow */ -/* Currently only ioctl, acl (get security descriptor) */ +/* Currently only ioctl, acl (get security descriptor) */ /* and notify are implemented */ /*******************************************************/ typedef struct smb_com_ntransact_req { - struct smb_hdr hdr; /* wct >= 19 */ - __u8 MaxSetupCount; - __u16 Reserved; - __le32 TotalParameterCount; - __le32 TotalDataCount; - __le32 MaxParameterCount; - __le32 MaxDataCount; - __le32 ParameterCount; - __le32 ParameterOffset; - __le32 DataCount; - __le32 DataOffset; - __u8 SetupCount; /* four setup words follow subcommand */ - /* SNIA spec incorrectly included spurious pad here */ - __le16 SubCommand; /* 2 = IOCTL/FSCTL */ - /* SetupCount words follow then */ - __le16 ByteCount; - __u8 Pad[3]; - __u8 Parms[0]; + struct smb_hdr hdr; /* wct >= 19 */ + __u8 MaxSetupCount; + __u16 Reserved; + __le32 TotalParameterCount; + __le32 TotalDataCount; + __le32 MaxParameterCount; + __le32 MaxDataCount; + __le32 ParameterCount; + __le32 ParameterOffset; + __le32 DataCount; + __le32 DataOffset; + __u8 SetupCount; /* four setup words follow subcommand */ + /* SNIA spec incorrectly included spurious pad here */ + __le16 SubCommand; /* 2 = IOCTL/FSCTL */ + /* SetupCount words follow then */ + __le16 ByteCount; + __u8 Pad[3]; + __u8 Parms[0]; } __attribute__((packed)) NTRANSACT_REQ; typedef struct smb_com_ntransact_rsp { @@ -1120,7 +1126,7 @@ typedef struct smb_com_ntransact_rsp { __le32 DataDisplacement; __u8 SetupCount; /* 0 */ __u16 ByteCount; - /* __u8 Pad[3]; */ + /* __u8 Pad[3]; */ /* parms and data follow */ } __attribute__((packed)) NTRANSACT_RSP; @@ -1215,7 +1221,7 @@ typedef struct smb_com_transaction_change_notify_req { /* __u8 Data[1];*/ } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_REQ; -/* BB eventually change to use generic ntransact rsp struct +/* BB eventually change to use generic ntransact rsp struct and validation routine */ typedef struct smb_com_transaction_change_notify_rsp { struct smb_hdr hdr; /* wct = 18 */ @@ -1262,7 +1268,7 @@ struct file_notify_information { __le32 Action; __le32 FileNameLength; __u8 FileName[0]; -} __attribute__((packed)); +} __attribute__((packed)); struct reparse_data { __u32 ReparseTag; @@ -1331,7 +1337,7 @@ struct trans2_resp { __u8 Reserved1; /* SetupWords[SetupCount]; __u16 ByteCount; - __u16 Reserved2;*/ + __u16 Reserved2;*/ /* data area follows */ } __attribute__((packed)); @@ -1370,9 +1376,9 @@ struct smb_t2_rsp { #define SMB_QUERY_FILE_INTERNAL_INFO 0x3ee #define SMB_QUERY_FILE_ACCESS_INFO 0x3f0 #define SMB_QUERY_FILE_NAME_INFO2 0x3f1 /* 0x30 bytes */ -#define SMB_QUERY_FILE_POSITION_INFO 0x3f6 +#define SMB_QUERY_FILE_POSITION_INFO 0x3f6 #define SMB_QUERY_FILE_MODE_INFO 0x3f8 -#define SMB_QUERY_FILE_ALGN_INFO 0x3f9 +#define SMB_QUERY_FILE_ALGN_INFO 0x3f9 #define SMB_SET_FILE_BASIC_INFO 0x101 @@ -1506,35 +1512,35 @@ struct smb_com_transaction2_sfi_req { __u16 Pad1; __u16 Fid; __le16 InformationLevel; - __u16 Reserved4; + __u16 Reserved4; } __attribute__((packed)); struct smb_com_transaction2_sfi_rsp { struct smb_hdr hdr; /* wct = 10 + SetupCount */ struct trans2_resp t2; __u16 ByteCount; - __u16 Reserved2; /* parameter word reserved - + __u16 Reserved2; /* parameter word reserved - present for infolevels > 100 */ } __attribute__((packed)); struct smb_t2_qfi_req { - struct smb_hdr hdr; - struct trans2_req t2; + struct smb_hdr hdr; + struct trans2_req t2; __u8 Pad; __u16 Fid; __le16 InformationLevel; } __attribute__((packed)); struct smb_t2_qfi_rsp { - struct smb_hdr hdr; /* wct = 10 + SetupCount */ - struct trans2_resp t2; - __u16 ByteCount; - __u16 Reserved2; /* parameter word reserved - - present for infolevels > 100 */ + struct smb_hdr hdr; /* wct = 10 + SetupCount */ + struct trans2_resp t2; + __u16 ByteCount; + __u16 Reserved2; /* parameter word reserved - + present for infolevels > 100 */ } __attribute__((packed)); /* - * Flags on T2 FINDFIRST and FINDNEXT + * Flags on T2 FINDFIRST and FINDNEXT */ #define CIFS_SEARCH_CLOSE_ALWAYS 0x0001 #define CIFS_SEARCH_CLOSE_AT_END 0x0002 @@ -1743,7 +1749,9 @@ typedef struct smb_com_transaction2_get_dfs_refer_req { __u8 Reserved3; __le16 SubCommand; /* one setup word */ __le16 ByteCount; - __u8 Pad[3]; /* Win2K has sent 0x0F01 (max resp length perhaps?) followed by one byte pad - doesn't seem to matter though */ + __u8 Pad[3]; /* Win2K has sent 0x0F01 (max response length + perhaps?) followed by one byte pad - doesn't + seem to matter though */ __le16 MaxReferralLevel; char RequestFileName[1]; } __attribute__((packed)) TRANSACTION2_GET_DFS_REFER_REQ; @@ -1752,7 +1760,10 @@ typedef struct dfs_referral_level_3 { __le16 VersionNumber; __le16 ReferralSize; __le16 ServerType; /* 0x0001 = CIFS server */ - __le16 ReferralFlags; /* or proximity - not clear which since always set to zero - SNIA spec says 0x01 means strip off PathConsumed chars before submitting RequestFileName to remote node */ + __le16 ReferralFlags; /* or proximity - not clear which since it is + always set to zero - SNIA spec says 0x01 + means strip off PathConsumed chars before + submitting RequestFileName to remote node */ __le16 TimeToLive; __le16 Proximity; __le16 DfsPathOffset; @@ -1778,11 +1789,13 @@ typedef struct smb_com_transaction_get_dfs_refer_rsp { #define DFSREF_STORAGE_SERVER 0x0002 /* IOCTL information */ -/* List of ioctl function codes that look to be of interest to remote clients like this. */ -/* Need to do some experimentation to make sure they all work remotely. */ -/* Some of the following such as the encryption/compression ones would be */ -/* invoked from tools via a specialized hook into the VFS rather than via the */ -/* standard vfs entry points */ +/* + * List of ioctl function codes that look to be of interest to remote clients + * like this one. Need to do some experimentation to make sure they all work + * remotely. Some of the following, such as the encryption/compression ones + * would be invoked from tools via a specialized hook into the VFS rather + * than via the standard vfs entry points + */ #define FSCTL_REQUEST_OPLOCK_LEVEL_1 0x00090000 #define FSCTL_REQUEST_OPLOCK_LEVEL_2 0x00090004 #define FSCTL_REQUEST_BATCH_OPLOCK 0x00090008 @@ -1811,7 +1824,7 @@ typedef struct smb_com_transaction_get_dfs_refer_rsp { /* ************************************************************************ * All structs for everything above the SMB PDUs themselves - * (such as the T2 level specific data) go here + * (such as the T2 level specific data) go here ************************************************************************ */ @@ -1857,7 +1870,7 @@ typedef struct { __le64 FreeAllocationUnits; __le32 SectorsPerAllocationUnit; __le32 BytesPerSector; -} __attribute__((packed)) FILE_SYSTEM_INFO; /* size info, level 0x103 */ +} __attribute__((packed)) FILE_SYSTEM_INFO; /* size info, level 0x103 */ typedef struct { __le32 fsid; @@ -1871,7 +1884,7 @@ typedef struct { __le16 MajorVersionNumber; __le16 MinorVersionNumber; __le64 Capability; -} __attribute__((packed)) FILE_SYSTEM_UNIX_INFO; /* Unix extensions info, level 0x200 */ +} __attribute__((packed)) FILE_SYSTEM_UNIX_INFO; /* Unix extension level 0x200*/ /* Version numbers for CIFS UNIX major and minor. */ #define CIFS_UNIX_MAJOR_VERSION 1 @@ -1885,16 +1898,20 @@ typedef struct { #define CIFS_UNIX_POSIX_PATHNAMES_CAP 0x00000010 /* Allow POSIX path chars */ #define CIFS_UNIX_POSIX_PATH_OPS_CAP 0x00000020 /* Allow new POSIX path based calls including posix open - and posix unlink */ + and posix unlink */ +#define CIFS_UNIX_LARGE_READ_CAP 0x00000040 /* support reads >128K (up + to 0xFFFF00 */ +#define CIFS_UNIX_LARGE_WRITE_CAP 0x00000080 + #ifdef CONFIG_CIFS_POSIX /* Can not set pathnames cap yet until we send new posix create SMB since otherwise server can treat such handles opened with older ntcreatex (by a new client which knows how to send posix path ops) as non-posix handles (can affect write behavior with byte range locks. We can add back in POSIX_PATH_OPS cap when Posix Create/Mkdir finished */ -/* #define CIFS_UNIX_CAP_MASK 0x0000003b */ -#define CIFS_UNIX_CAP_MASK 0x0000001b -#else +/* #define CIFS_UNIX_CAP_MASK 0x000000fb */ +#define CIFS_UNIX_CAP_MASK 0x000000db +#else #define CIFS_UNIX_CAP_MASK 0x00000013 #endif /* CONFIG_CIFS_POSIX */ @@ -1904,10 +1921,10 @@ typedef struct { typedef struct { /* For undefined recommended transfer size return -1 in that field */ __le32 OptimalTransferSize; /* bsize on some os, iosize on other os */ - __le32 BlockSize; + __le32 BlockSize; /* The next three fields are in terms of the block size. (above). If block size is unknown, 4096 would be a - reasonable block size for a server to report. + reasonable block size for a server to report. Note that returning the blocks/blocksavail removes need to make a second call (to QFSInfo level 0x103 to get this info. UserBlockAvail is typically less than or equal to BlocksAvail, @@ -2062,9 +2079,9 @@ struct file_alt_name_info { struct file_stream_info { __le32 number_of_streams; /* BB check sizes and verify location */ - /* followed by info on streams themselves + /* followed by info on streams themselves u64 size; - u64 allocation_size + u64 allocation_size stream info */ }; /* level 0x109 */ @@ -2083,7 +2100,7 @@ struct cifs_posix_ace { /* access control entry (ACE) */ __u8 cifs_e_tag; __u8 cifs_e_perm; __le64 cifs_uid; /* or gid */ -} __attribute__((packed)); +} __attribute__((packed)); struct cifs_posix_acl { /* access conrol list (ACL) */ __le16 version; @@ -2138,6 +2155,12 @@ typedef struct { /* struct following varies based on requested level */ } __attribute__((packed)) OPEN_PSX_RSP; /* level 0x209 SetPathInfo data */ +#define SMB_POSIX_UNLINK_FILE_TARGET 0 +#define SMB_POSIX_UNLINK_DIRECTORY_TARGET 1 + +struct unlink_psx_rq { /* level 0x20a SetPathInfo */ + __le16 type; +} __attribute__((packed)); struct file_internal_info { __u64 UniqueId; /* inode number */ @@ -2154,7 +2177,7 @@ struct file_attrib_tag { /********************************************************/ -/* FindFirst/FindNext transact2 data buffer formats */ +/* FindFirst/FindNext transact2 data buffer formats */ /********************************************************/ typedef struct { @@ -2232,7 +2255,7 @@ typedef struct { __le64 EndOfFile; __le64 AllocationSize; __le32 ExtFileAttributes; - __le32 FileNameLength; + __le32 FileNameLength; __le32 EaSize; /* length of the xattrs */ __u8 ShortNameLength; __u8 Reserved; @@ -2259,7 +2282,7 @@ typedef struct { struct win_dev { unsigned char type[8]; /* IntxCHR or IntxBLK */ __le64 major; - __le64 minor; + __le64 minor; } __attribute__((packed)); struct gea { @@ -2291,36 +2314,36 @@ struct fealist { struct data_blob { __u8 *data; size_t length; - void (*free) (struct data_blob * data_blob); + void (*free) (struct data_blob *data_blob); } __attribute__((packed)); #ifdef CONFIG_CIFS_POSIX -/* +/* For better POSIX semantics from Linux client, (even better than the existing CIFS Unix Extensions) we need updated PDUs for: - + 1) PosixCreateX - to set and return the mode, inode#, device info and perhaps add a CreateDevice - to create Pipes and other special .inodes Also note POSIX open flags - 2) Close - to return the last write time to do cache across close + 2) Close - to return the last write time to do cache across close more safely - 3) FindFirst return unique inode number - what about resume key, two + 3) FindFirst return unique inode number - what about resume key, two forms short (matches readdir) and full (enough info to cache inodes) 4) Mkdir - set mode - - And under consideration: + + And under consideration: 5) FindClose2 (return nanosecond timestamp ??) - 6) Use nanosecond timestamps throughout all time fields if + 6) Use nanosecond timestamps throughout all time fields if corresponding attribute flag is set 7) sendfile - handle based copy 8) Direct i/o 9) Misc fcntls? - + what about fixing 64 bit alignment - + There are also various legacy SMB/CIFS requests used as is - + From existing Lanman and NTLM dialects: -------------------------------------- NEGOTIATE @@ -2341,48 +2364,48 @@ struct data_blob { (BB verify that never need to set allocation size) SMB_SET_FILE_BASIC_INFO2 (setting times - BB can it be done via Unix ext?) - + COPY (note support for copy across directories) - FUTURE, OPTIONAL setting/getting OS/2 EAs - FUTURE (BB can this handle setting Linux xattrs perfectly) - OPTIONAL dnotify - FUTURE, OPTIONAL quota - FUTURE, OPTIONAL - - Note that various requests implemented for NT interop such as + + Note that various requests implemented for NT interop such as NT_TRANSACT (IOCTL) QueryReparseInfo are unneeded to servers compliant with the CIFS POSIX extensions - + From CIFS Unix Extensions: ------------------------- T2 SET_PATH_INFO (SMB_SET_FILE_UNIX_LINK) for symlinks T2 SET_PATH_INFO (SMB_SET_FILE_BASIC_INFO2) T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_LINK) - T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_BASIC) - BB check for missing inode fields - Actually need QUERY_FILE_UNIX_INFO since has inode num - BB what about a) blksize/blkbits/blocks + T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_BASIC) BB check for missing + inode fields + Actually a need QUERY_FILE_UNIX_INFO + since has inode num + BB what about a) blksize/blkbits/blocks b) i_version c) i_rdev d) notify mask? e) generation f) size_seqcount T2 FIND_FIRST/FIND_NEXT FIND_FILE_UNIX - TRANS2_GET_DFS_REFERRAL - OPTIONAL but recommended + TRANS2_GET_DFS_REFERRAL - OPTIONAL but recommended T2_QFS_INFO QueryDevice/AttributeInfo - OPTIONAL - - */ /* xsymlink is a symlink format (used by MacOS) that can be used - to save symlink info in a regular file when + to save symlink info in a regular file when mounted to operating systems that do not support the cifs Unix extensions or EAs (for xattr based symlinks). For such a file to be recognized - as containing symlink data: + as containing symlink data: - 1) file size must be 1067, + 1) file size must be 1067, 2) signature must begin file data, 3) length field must be set to ASCII representation - of a number which is less than or equal to 1024, + of a number which is less than or equal to 1024, 4) md5 must match that of the path data */ struct xsymlink { @@ -2393,10 +2416,10 @@ struct xsymlink { char length[4]; char cr1; /* \n */ /* md5 of valid subset of path ie path[0] through path[length-1] */ - __u8 md5[32]; + __u8 md5[32]; char cr2; /* \n */ /* if room left, then end with \n then 0x20s by convention but not required */ - char path[1024]; + char path[1024]; } __attribute__((packed)); typedef struct file_xattr_info { @@ -2405,7 +2428,8 @@ typedef struct file_xattr_info { __u32 xattr_value_len; char xattr_name[0]; /* followed by xattr_value[xattr_value_len], no pad */ -} __attribute__((packed)) FILE_XATTR_INFO; /* extended attribute, info level 0x205 */ +} __attribute__((packed)) FILE_XATTR_INFO; /* extended attribute info + level 0x205 */ /* flags for chattr command */ @@ -2431,8 +2455,9 @@ typedef struct file_xattr_info { typedef struct file_chattr_info { __le64 mask; /* list of all possible attribute bits */ __le64 mode; /* list of actual attribute bits on this inode */ -} __attribute__((packed)) FILE_CHATTR_INFO; /* ext attributes (chattr, chflags) level 0x206 */ +} __attribute__((packed)) FILE_CHATTR_INFO; /* ext attributes + (chattr, chflags) level 0x206 */ -#endif +#endif #endif /* _CIFSPDU_H */ diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 5d163e2b614..04a69dafedb 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -16,7 +16,7 @@ * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _CIFSPROTO_H #define _CIFSPROTO_H @@ -49,9 +49,9 @@ extern int SendReceive(const unsigned int /* xid */ , struct cifsSesInfo *, struct smb_hdr * /* out */ , int * /* bytes returned */ , const int long_op); extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *, - struct kvec *, int /* nvec to send */, + struct kvec *, int /* nvec to send */, int * /* type of buf returned */ , const int long_op); -extern int SendReceiveBlockingLock(const unsigned int /* xid */ , +extern int SendReceiveBlockingLock(const unsigned int /* xid */ , struct cifsTconInfo *, struct smb_hdr * /* input */ , struct smb_hdr * /* out */ , @@ -64,19 +64,19 @@ extern unsigned int smbCalcSize(struct smb_hdr *ptr); extern unsigned int smbCalcSize_LE(struct smb_hdr *ptr); extern int decode_negTokenInit(unsigned char *security_blob, int length, enum securityEnum *secType); -extern int cifs_inet_pton(int, char * source, void *dst); +extern int cifs_inet_pton(int, char *source, void *dst); extern int map_smb_to_linux_error(struct smb_hdr *smb); extern void header_assemble(struct smb_hdr *, char /* command */ , const struct cifsTconInfo *, int /* length of fixed section (word count) in two byte units */); extern int small_smb_init_no_tc(const int smb_cmd, const int wct, struct cifsSesInfo *ses, - void ** request_buf); + void **request_buf); extern int CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, - const int stage, + const int stage, const struct nls_table *nls_cp); extern __u16 GetNextMid(struct TCP_Server_Info *server); -extern struct oplock_q_entry * AllocOplockQEntry(struct inode *, u16, +extern struct oplock_q_entry *AllocOplockQEntry(struct inode *, u16, struct cifsTconInfo *); extern void DeleteOplockQEntry(struct oplock_q_entry *); extern struct timespec cifs_NTtimeToUnix(u64 /* utc nanoseconds since 1601 */ ); @@ -85,12 +85,12 @@ extern __le64 cnvrtDosCifsTm(__u16 date, __u16 time); extern struct timespec cnvrtDosUnixTm(__u16 date, __u16 time); extern int cifs_get_inode_info(struct inode **pinode, - const unsigned char *search_path, + const unsigned char *search_path, FILE_ALL_INFO * pfile_info, struct super_block *sb, int xid); extern int cifs_get_inode_info_unix(struct inode **pinode, const unsigned char *search_path, - struct super_block *sb,int xid); + struct super_block *sb, int xid); extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *, const char *); @@ -98,8 +98,8 @@ extern int cifs_umount(struct super_block *, struct cifs_sb_info *); void cifs_proc_init(void); void cifs_proc_clean(void); -extern int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, - struct nls_table * nls_info); +extern int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, + struct nls_table *nls_info); extern int CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses); extern int CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, @@ -108,11 +108,11 @@ extern int CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, extern int CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, const char *searchName, const struct nls_table *nls_codepage, - __u16 *searchHandle, struct cifs_search_info * psrch_inf, + __u16 *searchHandle, struct cifs_search_info *psrch_inf, int map, const char dirsep); extern int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, - __u16 searchHandle, struct cifs_search_info * psrch_inf); + __u16 searchHandle, struct cifs_search_info *psrch_inf); extern int CIFSFindClose(const int, struct cifsTconInfo *tcon, const __u16 search_handle); @@ -123,9 +123,9 @@ extern int CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon, int legacy /* whether to use old info level */, const struct nls_table *nls_codepage, int remap); extern int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon, - const unsigned char *searchName, - FILE_ALL_INFO * findData, - const struct nls_table *nls_codepage, int remap); + const unsigned char *searchName, + FILE_ALL_INFO *findData, + const struct nls_table *nls_codepage, int remap); extern int CIFSSMBUnixQPathInfo(const int xid, struct cifsTconInfo *tcon, @@ -143,13 +143,13 @@ extern int connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo, const char *old_path, const struct nls_table *nls_codepage, int remap); extern int get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, - const char *old_path, + const char *old_path, const struct nls_table *nls_codepage, - unsigned int *pnum_referrals, - unsigned char ** preferrals, + unsigned int *pnum_referrals, + unsigned char **preferrals, int remap); extern void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon, - struct super_block * sb, struct smb_vol * vol); + struct super_block *sb, struct smb_vol *vol); extern int CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData); extern int SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon, @@ -181,11 +181,11 @@ extern int CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon, const struct nls_table *nls_codepage, int remap_special_chars); extern int CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, - __u64 size, __u16 fileHandle,__u32 opener_pid, + __u64 size, __u16 fileHandle, __u32 opener_pid, int AllocSizeFlag); extern int CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *pTcon, char *full_path, __u64 mode, __u64 uid, - __u64 gid, dev_t dev, + __u64 gid, dev_t dev, const struct nls_table *nls_codepage, int remap_special_chars); @@ -196,7 +196,10 @@ extern int CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon, extern int CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon, const char *name, const struct nls_table *nls_codepage, int remap_special_chars); - +extern int CIFSPOSIXDelFile(const int xid, struct cifsTconInfo *tcon, + const char *name, __u16 type, + const struct nls_table *nls_codepage, + int remap_special_chars); extern int CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon, const char *name, const struct nls_table *nls_codepage, @@ -205,8 +208,8 @@ extern int CIFSSMBRename(const int xid, struct cifsTconInfo *tcon, const char *fromName, const char *toName, const struct nls_table *nls_codepage, int remap_special_chars); -extern int CIFSSMBRenameOpenFile(const int xid,struct cifsTconInfo *pTcon, - int netfid, char * target_name, +extern int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon, + int netfid, char *target_name, const struct nls_table *nls_codepage, int remap_special_chars); extern int CIFSCreateHardLink(const int xid, @@ -217,7 +220,7 @@ extern int CIFSCreateHardLink(const int xid, extern int CIFSUnixCreateHardLink(const int xid, struct cifsTconInfo *tcon, const char *fromName, const char *toName, - const struct nls_table *nls_codepage, + const struct nls_table *nls_codepage, int remap_special_chars); extern int CIFSUnixCreateSymLink(const int xid, struct cifsTconInfo *tcon, @@ -228,7 +231,7 @@ extern int CIFSSMBUnixQuerySymLink(const int xid, const unsigned char *searchName, char *syminfo, const int buflen, const struct nls_table *nls_codepage); -extern int CIFSSMBQueryReparseLinkInfo(const int xid, +extern int CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon, const unsigned char *searchName, char *symlinkinfo, const int buflen, __u16 fid, @@ -244,35 +247,35 @@ extern int SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon, const int access_flags, const int omode, __u16 * netfid, int *pOplock, FILE_ALL_INFO *, const struct nls_table *nls_codepage, int remap); -extern int CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, +extern int CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, u32 posix_flags, __u64 mode, __u16 * netfid, FILE_UNIX_BASIC_INFO *pRetData, __u32 *pOplock, const char *name, - const struct nls_table *nls_codepage, int remap); + const struct nls_table *nls_codepage, int remap); extern int CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, const int smb_file_id); extern int CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, - const int netfid, unsigned int count, - const __u64 lseek, unsigned int *nbytes, char **buf, - int * return_buf_type); + const int netfid, unsigned int count, + const __u64 lseek, unsigned int *nbytes, char **buf, + int *return_buf_type); extern int CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, const int netfid, const unsigned int count, const __u64 lseek, unsigned int *nbytes, - const char *buf, const char __user *ubuf, + const char *buf, const char __user *ubuf, const int long_op); extern int CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, const int netfid, const unsigned int count, - const __u64 offset, unsigned int *nbytes, + const __u64 offset, unsigned int *nbytes, struct kvec *iov, const int nvec, const int long_op); extern int CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon, const unsigned char *searchName, __u64 * inode_number, - const struct nls_table *nls_codepage, + const struct nls_table *nls_codepage, int remap_special_chars); extern int cifs_convertUCSpath(char *target, const __le16 *source, int maxlen, - const struct nls_table * codepage); -extern int cifsConvertToUCS(__le16 * target, const char *source, int maxlen, - const struct nls_table * cp, int mapChars); + const struct nls_table *codepage); +extern int cifsConvertToUCS(__le16 *target, const char *source, int maxlen, + const struct nls_table *cp, int mapChars); extern int CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, const __u16 netfid, const __u64 len, @@ -281,7 +284,7 @@ extern int CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, const int waitFlag); extern int CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, const __u16 smb_file_id, const int get_flag, - const __u64 len, struct file_lock *, + const __u64 len, struct file_lock *, const __u16 lock_type, const int waitFlag); extern int CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon); extern int CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses); @@ -291,54 +294,56 @@ extern void sesInfoFree(struct cifsSesInfo *); extern struct cifsTconInfo *tconInfoAlloc(void); extern void tconInfoFree(struct cifsTconInfo *); -extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *,__u32 *); +extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *); extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *, __u32 *); -extern int cifs_verify_signature(struct smb_hdr *, const char * mac_key, - __u32 expected_sequence_number); -extern int cifs_calculate_mac_key(char * key,const char * rn,const char * pass); -extern int CalcNTLMv2_partial_mac_key(struct cifsSesInfo *, +extern int cifs_verify_signature(struct smb_hdr *, + const struct mac_key *mac_key, + __u32 expected_sequence_number); +extern int cifs_calculate_mac_key(struct mac_key *key, const char *rn, + const char *pass); +extern int CalcNTLMv2_partial_mac_key(struct cifsSesInfo *, const struct nls_table *); extern void CalcNTLMv2_response(const struct cifsSesInfo *, char * ); -extern void setup_ntlmv2_rsp(struct cifsSesInfo *, char *, +extern void setup_ntlmv2_rsp(struct cifsSesInfo *, char *, const struct nls_table *); #ifdef CONFIG_CIFS_WEAK_PW_HASH -extern void calc_lanman_hash(struct cifsSesInfo * ses, char * lnm_session_key); +extern void calc_lanman_hash(struct cifsSesInfo *ses, char *lnm_session_key); #endif /* CIFS_WEAK_PW_HASH */ extern int CIFSSMBCopy(int xid, struct cifsTconInfo *source_tcon, const char *fromName, const __u16 target_tid, const char *toName, const int flags, - const struct nls_table *nls_codepage, + const struct nls_table *nls_codepage, int remap_special_chars); -extern int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, - const int notify_subdirs,const __u16 netfid, - __u32 filter, struct file * file, int multishot, +extern int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, + const int notify_subdirs, const __u16 netfid, + __u32 filter, struct file *file, int multishot, const struct nls_table *nls_codepage); extern ssize_t CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon, - const unsigned char *searchName, char * EAData, + const unsigned char *searchName, char *EAData, size_t bufsize, const struct nls_table *nls_codepage, int remap_special_chars); -extern ssize_t CIFSSMBQueryEA(const int xid,struct cifsTconInfo * tcon, - const unsigned char * searchName,const unsigned char * ea_name, - unsigned char * ea_value, size_t buf_size, +extern ssize_t CIFSSMBQueryEA(const int xid, struct cifsTconInfo *tcon, + const unsigned char *searchName, const unsigned char *ea_name, + unsigned char *ea_value, size_t buf_size, const struct nls_table *nls_codepage, int remap_special_chars); -extern int CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon, - const char *fileName, const char * ea_name, - const void * ea_value, const __u16 ea_value_len, +extern int CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon, + const char *fileName, const char *ea_name, + const void *ea_value, const __u16 ea_value_len, const struct nls_table *nls_codepage, int remap_special_chars); extern int CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, char *acl_inf, const int buflen, const int acl_type /* ACCESS vs. DEFAULT */); extern int CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon, const unsigned char *searchName, - char *acl_inf, const int buflen,const int acl_type, + char *acl_inf, const int buflen, const int acl_type, const struct nls_table *nls_codepage, int remap_special_chars); extern int CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon, const unsigned char *fileName, const char *local_acl, const int buflen, const int acl_type, const struct nls_table *nls_codepage, int remap_special_chars); extern int CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon, - const int netfid, __u64 * pExtAttrBits, __u64 *pMask); + const int netfid, __u64 * pExtAttrBits, __u64 *pMask); #endif /* _CIFSPROTO_H */ diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 57419a17668..8eb102f940d 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -48,7 +48,7 @@ static struct { {LANMAN_PROT, "\2LM1.2X002"}, {LANMAN2_PROT, "\2LANMAN2.1"}, #endif /* weak password hashing for legacy clients */ - {CIFS_PROT, "\2NT LM 0.12"}, + {CIFS_PROT, "\2NT LM 0.12"}, {POSIX_PROT, "\2POSIX 2"}, {BAD_PROT, "\2"} }; @@ -61,7 +61,7 @@ static struct { {LANMAN_PROT, "\2LM1.2X002"}, {LANMAN2_PROT, "\2LANMAN2.1"}, #endif /* weak password hashing for legacy clients */ - {CIFS_PROT, "\2NT LM 0.12"}, + {CIFS_PROT, "\2NT LM 0.12"}, {BAD_PROT, "\2"} }; #endif @@ -84,17 +84,17 @@ static struct { /* Mark as invalid, all open files on tree connections since they were closed when session to server was lost */ -static void mark_open_files_invalid(struct cifsTconInfo * pTcon) +static void mark_open_files_invalid(struct cifsTconInfo *pTcon) { struct cifsFileInfo *open_file = NULL; - struct list_head * tmp; - struct list_head * tmp1; + struct list_head *tmp; + struct list_head *tmp1; /* list all files open on tree connection and mark them invalid */ write_lock(&GlobalSMBSeslock); list_for_each_safe(tmp, tmp1, &pTcon->openFileList) { - open_file = list_entry(tmp,struct cifsFileInfo, tlist); - if(open_file) { + open_file = list_entry(tmp, struct cifsFileInfo, tlist); + if (open_file) { open_file->invalidHandle = TRUE; } } @@ -113,75 +113,78 @@ small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so check for tcp and smb session status done differently for those three - in the calling routine */ - if(tcon) { - if(tcon->tidStatus == CifsExiting) { + if (tcon) { + if (tcon->tidStatus == CifsExiting) { /* only tree disconnect, open, and write, (and ulogoff which does not have tcon) are allowed as we start force umount */ - if((smb_command != SMB_COM_WRITE_ANDX) && - (smb_command != SMB_COM_OPEN_ANDX) && + if ((smb_command != SMB_COM_WRITE_ANDX) && + (smb_command != SMB_COM_OPEN_ANDX) && (smb_command != SMB_COM_TREE_DISCONNECT)) { - cFYI(1,("can not send cmd %d while umounting", + cFYI(1, ("can not send cmd %d while umounting", smb_command)); return -ENODEV; } } - if((tcon->ses) && (tcon->ses->status != CifsExiting) && - (tcon->ses->server)){ + if ((tcon->ses) && (tcon->ses->status != CifsExiting) && + (tcon->ses->server)) { struct nls_table *nls_codepage; - /* Give Demultiplex thread up to 10 seconds to + /* Give Demultiplex thread up to 10 seconds to reconnect, should be greater than cifs socket timeout which is 7 seconds */ - while(tcon->ses->server->tcpStatus == CifsNeedReconnect) { + while (tcon->ses->server->tcpStatus == + CifsNeedReconnect) { wait_event_interruptible_timeout(tcon->ses->server->response_q, - (tcon->ses->server->tcpStatus == CifsGood), 10 * HZ); - if(tcon->ses->server->tcpStatus == CifsNeedReconnect) { + (tcon->ses->server->tcpStatus == + CifsGood), 10 * HZ); + if (tcon->ses->server->tcpStatus == + CifsNeedReconnect) { /* on "soft" mounts we wait once */ - if((tcon->retry == FALSE) || + if ((tcon->retry == FALSE) || (tcon->ses->status == CifsExiting)) { - cFYI(1,("gave up waiting on reconnect in smb_init")); + cFYI(1, ("gave up waiting on " + "reconnect in smb_init")); return -EHOSTDOWN; } /* else "hard" mount - keep retrying until process is killed or server comes back on-line */ } else /* TCP session is reestablished now */ break; - } - + nls_codepage = load_nls_default(); /* need to prevent multiple threads trying to simultaneously reconnect the same SMB session */ down(&tcon->ses->sesSem); - if(tcon->ses->status == CifsNeedReconnect) - rc = cifs_setup_session(0, tcon->ses, + if (tcon->ses->status == CifsNeedReconnect) + rc = cifs_setup_session(0, tcon->ses, nls_codepage); - if(!rc && (tcon->tidStatus == CifsNeedReconnect)) { + if (!rc && (tcon->tidStatus == CifsNeedReconnect)) { mark_open_files_invalid(tcon); - rc = CIFSTCon(0, tcon->ses, tcon->treeName, + rc = CIFSTCon(0, tcon->ses, tcon->treeName, tcon, nls_codepage); up(&tcon->ses->sesSem); /* tell server which Unix caps we support */ if (tcon->ses->capabilities & CAP_UNIX) reset_cifs_unix_caps(0 /* no xid */, - tcon, + tcon, NULL /* we do not know sb */, - NULL /* no vol info */); + NULL /* no vol info */); /* BB FIXME add code to check if wsize needs update due to negotiated smb buffer size shrinking */ - if(rc == 0) + if (rc == 0) atomic_inc(&tconInfoReconnectCount); cFYI(1, ("reconnect tcon rc = %d", rc)); - /* Removed call to reopen open files here - - it is safer (and faster) to reopen files + /* Removed call to reopen open files here. + It is safer (and faster) to reopen files one at a time as needed in read and write */ - /* Check if handle based operation so we + /* Check if handle based operation so we know whether we can continue or not without returning to caller to reset file handle */ - switch(smb_command) { + switch (smb_command) { case SMB_COM_READ_ANDX: case SMB_COM_WRITE_ANDX: case SMB_COM_CLOSE: @@ -200,7 +203,7 @@ small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, return -EIO; } } - if(rc) + if (rc) return rc; *request_buf = cifs_small_buf_get(); @@ -209,23 +212,24 @@ small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, return -ENOMEM; } - header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon,wct); + header_assemble((struct smb_hdr *) *request_buf, smb_command, + tcon, wct); - if(tcon != NULL) - cifs_stats_inc(&tcon->num_smbs_sent); + if (tcon != NULL) + cifs_stats_inc(&tcon->num_smbs_sent); return rc; } int -small_smb_init_no_tc(const int smb_command, const int wct, +small_smb_init_no_tc(const int smb_command, const int wct, struct cifsSesInfo *ses, void **request_buf) { int rc; - struct smb_hdr * buffer; + struct smb_hdr *buffer; rc = small_smb_init(smb_command, wct, NULL, request_buf); - if(rc) + if (rc) return rc; buffer = (struct smb_hdr *)*request_buf; @@ -237,7 +241,7 @@ small_smb_init_no_tc(const int smb_command, const int wct, /* uid, tid can stay at zero as set in header assemble */ - /* BB add support for turning on the signing when + /* BB add support for turning on the signing when this function is used after 1st of session setup requests */ return rc; @@ -254,52 +258,53 @@ smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so check for tcp and smb session status done differently for those three - in the calling routine */ - if(tcon) { - if(tcon->tidStatus == CifsExiting) { + if (tcon) { + if (tcon->tidStatus == CifsExiting) { /* only tree disconnect, open, and write, (and ulogoff which does not have tcon) are allowed as we start force umount */ - if((smb_command != SMB_COM_WRITE_ANDX) && + if ((smb_command != SMB_COM_WRITE_ANDX) && (smb_command != SMB_COM_OPEN_ANDX) && (smb_command != SMB_COM_TREE_DISCONNECT)) { - cFYI(1,("can not send cmd %d while umounting", + cFYI(1, ("can not send cmd %d while umounting", smb_command)); return -ENODEV; } } - if((tcon->ses) && (tcon->ses->status != CifsExiting) && - (tcon->ses->server)){ + if ((tcon->ses) && (tcon->ses->status != CifsExiting) && + (tcon->ses->server)) { struct nls_table *nls_codepage; /* Give Demultiplex thread up to 10 seconds to reconnect, should be greater than cifs socket timeout which is 7 seconds */ - while(tcon->ses->server->tcpStatus == CifsNeedReconnect) { + while (tcon->ses->server->tcpStatus == + CifsNeedReconnect) { wait_event_interruptible_timeout(tcon->ses->server->response_q, - (tcon->ses->server->tcpStatus == CifsGood), 10 * HZ); - if(tcon->ses->server->tcpStatus == + (tcon->ses->server->tcpStatus == + CifsGood), 10 * HZ); + if (tcon->ses->server->tcpStatus == CifsNeedReconnect) { /* on "soft" mounts we wait once */ - if((tcon->retry == FALSE) || + if ((tcon->retry == FALSE) || (tcon->ses->status == CifsExiting)) { - cFYI(1,("gave up waiting on reconnect in smb_init")); + cFYI(1, ("gave up waiting on " + "reconnect in smb_init")); return -EHOSTDOWN; } /* else "hard" mount - keep retrying until process is killed or server comes on-line */ } else /* TCP session is reestablished now */ break; - } - nls_codepage = load_nls_default(); /* need to prevent multiple threads trying to simultaneously reconnect the same SMB session */ down(&tcon->ses->sesSem); - if(tcon->ses->status == CifsNeedReconnect) - rc = cifs_setup_session(0, tcon->ses, + if (tcon->ses->status == CifsNeedReconnect) + rc = cifs_setup_session(0, tcon->ses, nls_codepage); - if(!rc && (tcon->tidStatus == CifsNeedReconnect)) { + if (!rc && (tcon->tidStatus == CifsNeedReconnect)) { mark_open_files_invalid(tcon); rc = CIFSTCon(0, tcon->ses, tcon->treeName, tcon, nls_codepage); @@ -307,24 +312,24 @@ smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, /* tell server which Unix caps we support */ if (tcon->ses->capabilities & CAP_UNIX) reset_cifs_unix_caps(0 /* no xid */, - tcon, + tcon, NULL /* do not know sb */, NULL /* no vol info */); /* BB FIXME add code to check if wsize needs update due to negotiated smb buffer size shrinking */ - if(rc == 0) + if (rc == 0) atomic_inc(&tconInfoReconnectCount); cFYI(1, ("reconnect tcon rc = %d", rc)); - /* Removed call to reopen open files here - - it is safer (and faster) to reopen files + /* Removed call to reopen open files here. + It is safer (and faster) to reopen files one at a time as needed in read and write */ - /* Check if handle based operation so we + /* Check if handle based operation so we know whether we can continue or not without returning to caller to reset file handle */ - switch(smb_command) { + switch (smb_command) { case SMB_COM_READ_ANDX: case SMB_COM_WRITE_ANDX: case SMB_COM_CLOSE: @@ -343,7 +348,7 @@ smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, return -EIO; } } - if(rc) + if (rc) return rc; *request_buf = cifs_buf_get(); @@ -355,48 +360,48 @@ smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, /* potential retries of smb operations it turns out we can determine */ /* from the mid flags when the request buffer can be resent without */ /* having to use a second distinct buffer for the response */ - if(response_buf) - *response_buf = *request_buf; + if (response_buf) + *response_buf = *request_buf; header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon, wct /*wct */ ); - if(tcon != NULL) - cifs_stats_inc(&tcon->num_smbs_sent); + if (tcon != NULL) + cifs_stats_inc(&tcon->num_smbs_sent); return rc; } -static int validate_t2(struct smb_t2_rsp * pSMB) +static int validate_t2(struct smb_t2_rsp *pSMB) { int rc = -EINVAL; int total_size; - char * pBCC; + char *pBCC; /* check for plausible wct, bcc and t2 data and parm sizes */ /* check for parm and data offset going beyond end of smb */ - if(pSMB->hdr.WordCount >= 10) { - if((le16_to_cpu(pSMB->t2_rsp.ParameterOffset) <= 1024) && + if (pSMB->hdr.WordCount >= 10) { + if ((le16_to_cpu(pSMB->t2_rsp.ParameterOffset) <= 1024) && (le16_to_cpu(pSMB->t2_rsp.DataOffset) <= 1024)) { /* check that bcc is at least as big as parms + data */ /* check that bcc is less than negotiated smb buffer */ total_size = le16_to_cpu(pSMB->t2_rsp.ParameterCount); - if(total_size < 512) { - total_size+=le16_to_cpu(pSMB->t2_rsp.DataCount); + if (total_size < 512) { + total_size += + le16_to_cpu(pSMB->t2_rsp.DataCount); /* BCC le converted in SendReceive */ - pBCC = (pSMB->hdr.WordCount * 2) + + pBCC = (pSMB->hdr.WordCount * 2) + sizeof(struct smb_hdr) + (char *)pSMB; - if((total_size <= (*(u16 *)pBCC)) && - (total_size < + if ((total_size <= (*(u16 *)pBCC)) && + (total_size < CIFSMaxBufSize+MAX_CIFS_HDR_SIZE)) { return 0; } - } } } - cifs_dump_mem("Invalid transact2 SMB: ",(char *)pSMB, + cifs_dump_mem("Invalid transact2 SMB: ", (char *)pSMB, sizeof(struct smb_t2_rsp) + 16); return rc; } @@ -408,12 +413,12 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) int rc = 0; int bytes_returned; int i; - struct TCP_Server_Info * server; + struct TCP_Server_Info *server; u16 count; unsigned int secFlags; u16 dialect; - if(ses->server) + if (ses->server) server = ses->server; else { rc = -EIO; @@ -425,20 +430,20 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) return rc; /* if any of auth flags (ie not sign or seal) are overriden use them */ - if(ses->overrideSecFlg & (~(CIFSSEC_MUST_SIGN | CIFSSEC_MUST_SEAL))) - secFlags = ses->overrideSecFlg; + if (ses->overrideSecFlg & (~(CIFSSEC_MUST_SIGN | CIFSSEC_MUST_SEAL))) + secFlags = ses->overrideSecFlg; /* BB FIXME fix sign flags? */ else /* if override flags set only sign/seal OR them with global auth */ secFlags = extended_security | ses->overrideSecFlg; - cFYI(1,("secFlags 0x%x",secFlags)); + cFYI(1, ("secFlags 0x%x", secFlags)); pSMB->hdr.Mid = GetNextMid(server); pSMB->hdr.Flags2 |= (SMBFLG2_UNICODE | SMBFLG2_ERR_STATUS); if ((secFlags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5) pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; - + count = 0; - for(i=0;i<CIFS_NUM_PROT;i++) { + for (i = 0; i < CIFS_NUM_PROT; i++) { strncpy(pSMB->DialectsArray+count, protocols[i].name, 16); count += strlen(protocols[i].name) + 1; /* null at end of source and target buffers anyway */ @@ -448,26 +453,26 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); - if (rc != 0) + if (rc != 0) goto neg_err_exit; dialect = le16_to_cpu(pSMBr->DialectIndex); - cFYI(1,("Dialect: %d", dialect)); + cFYI(1, ("Dialect: %d", dialect)); /* Check wct = 1 error case */ - if((pSMBr->hdr.WordCount < 13) || (dialect == BAD_PROT)) { + if ((pSMBr->hdr.WordCount < 13) || (dialect == BAD_PROT)) { /* core returns wct = 1, but we do not ask for core - otherwise - small wct just comes when dialect index is -1 indicating we + small wct just comes when dialect index is -1 indicating we could not negotiate a common dialect */ rc = -EOPNOTSUPP; goto neg_err_exit; -#ifdef CONFIG_CIFS_WEAK_PW_HASH - } else if((pSMBr->hdr.WordCount == 13) +#ifdef CONFIG_CIFS_WEAK_PW_HASH + } else if ((pSMBr->hdr.WordCount == 13) && ((dialect == LANMAN_PROT) || (dialect == LANMAN2_PROT))) { __s16 tmp; - struct lanman_neg_rsp * rsp = (struct lanman_neg_rsp *)pSMBr; + struct lanman_neg_rsp *rsp = (struct lanman_neg_rsp *)pSMBr; - if((secFlags & CIFSSEC_MAY_LANMAN) || + if ((secFlags & CIFSSEC_MAY_LANMAN) || (secFlags & CIFSSEC_MAY_PLNTXT)) server->secType = LANMAN; else { @@ -475,7 +480,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) " in /proc/fs/cifs/SecurityFlags")); rc = -EOPNOTSUPP; goto neg_err_exit; - } + } server->secMode = (__u8)le16_to_cpu(rsp->SecurityMode); server->maxReq = le16_to_cpu(rsp->MaxMpxCount); server->maxBuf = min((__u32)le16_to_cpu(rsp->MaxBufSize), @@ -483,7 +488,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) GETU32(server->sessid) = le32_to_cpu(rsp->SessionKey); /* even though we do not use raw we might as well set this accurately, in case we ever find a need for it */ - if((le16_to_cpu(rsp->RawMode) & RAW_ENABLE) == RAW_ENABLE) { + if ((le16_to_cpu(rsp->RawMode) & RAW_ENABLE) == RAW_ENABLE) { server->maxRw = 0xFF00; server->capabilities = CAP_MPX_MODE | CAP_RAW_MODE; } else { @@ -504,29 +509,29 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) utc = CURRENT_TIME; ts = cnvrtDosUnixTm(le16_to_cpu(rsp->SrvTime.Date), le16_to_cpu(rsp->SrvTime.Time)); - cFYI(1,("SrvTime: %d sec since 1970 (utc: %d) diff: %d", - (int)ts.tv_sec, (int)utc.tv_sec, + cFYI(1, ("SrvTime %d sec since 1970 (utc: %d) diff: %d", + (int)ts.tv_sec, (int)utc.tv_sec, (int)(utc.tv_sec - ts.tv_sec))); val = (int)(utc.tv_sec - ts.tv_sec); seconds = val < 0 ? -val : val; result = (seconds / MIN_TZ_ADJ) * MIN_TZ_ADJ; remain = seconds % MIN_TZ_ADJ; - if(remain >= (MIN_TZ_ADJ / 2)) + if (remain >= (MIN_TZ_ADJ / 2)) result += MIN_TZ_ADJ; - if(val < 0) + if (val < 0) result = - result; server->timeAdj = result; } else { server->timeAdj = (int)tmp; server->timeAdj *= 60; /* also in seconds */ } - cFYI(1,("server->timeAdj: %d seconds", server->timeAdj)); + cFYI(1, ("server->timeAdj: %d seconds", server->timeAdj)); /* BB get server time for time conversions and add - code to use it and timezone since this is not UTC */ + code to use it and timezone since this is not UTC */ - if (rsp->EncryptionKeyLength == + if (rsp->EncryptionKeyLength == cpu_to_le16(CIFS_CRYPTO_KEY_SIZE)) { memcpy(server->cryptKey, rsp->EncryptionKey, CIFS_CRYPTO_KEY_SIZE); @@ -535,39 +540,39 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) goto neg_err_exit; } - cFYI(1,("LANMAN negotiated")); + cFYI(1, ("LANMAN negotiated")); /* we will not end up setting signing flags - as no signing was in LANMAN and server did not return the flags on */ goto signing_check; #else /* weak security disabled */ - } else if(pSMBr->hdr.WordCount == 13) { - cERROR(1,("mount failed, cifs module not built " + } else if (pSMBr->hdr.WordCount == 13) { + cERROR(1, ("mount failed, cifs module not built " "with CIFS_WEAK_PW_HASH support")); rc = -EOPNOTSUPP; #endif /* WEAK_PW_HASH */ goto neg_err_exit; - } else if(pSMBr->hdr.WordCount != 17) { + } else if (pSMBr->hdr.WordCount != 17) { /* unknown wct */ rc = -EOPNOTSUPP; goto neg_err_exit; } /* else wct == 17 NTLM */ server->secMode = pSMBr->SecurityMode; - if((server->secMode & SECMODE_USER) == 0) - cFYI(1,("share mode security")); + if ((server->secMode & SECMODE_USER) == 0) + cFYI(1, ("share mode security")); - if((server->secMode & SECMODE_PW_ENCRYPT) == 0) + if ((server->secMode & SECMODE_PW_ENCRYPT) == 0) #ifdef CONFIG_CIFS_WEAK_PW_HASH if ((secFlags & CIFSSEC_MAY_PLNTXT) == 0) #endif /* CIFS_WEAK_PW_HASH */ - cERROR(1,("Server requests plain text password" + cERROR(1, ("Server requests plain text password" " but client support disabled")); - if((secFlags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2) + if ((secFlags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2) server->secType = NTLMv2; - else if(secFlags & CIFSSEC_MAY_NTLM) + else if (secFlags & CIFSSEC_MAY_NTLM) server->secType = NTLM; - else if(secFlags & CIFSSEC_MAY_NTLMV2) + else if (secFlags & CIFSSEC_MAY_NTLMV2) server->secType = NTLMv2; /* else krb5 ... any others ... */ @@ -596,7 +601,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) /* BB might be helpful to save off the domain of server here */ - if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) && + if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) && (server->capabilities & CAP_EXTENDED_SECURITY)) { count = pSMBr->ByteCount; if (count < 16) @@ -620,7 +625,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) SecurityBlob, count - 16, &server->secType); - if(rc == 1) { + if (rc == 1) { /* BB Need to fill struct for sessetup here */ rc = -EOPNOTSUPP; } else { @@ -633,26 +638,37 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) #ifdef CONFIG_CIFS_WEAK_PW_HASH signing_check: #endif - if(sign_CIFS_PDUs == FALSE) { - if(server->secMode & SECMODE_SIGN_REQUIRED) - cERROR(1,("Server requires " - "/proc/fs/cifs/PacketSigningEnabled to be on")); - server->secMode &= + if ((secFlags & CIFSSEC_MAY_SIGN) == 0) { + /* MUST_SIGN already includes the MAY_SIGN FLAG + so if this is zero it means that signing is disabled */ + cFYI(1, ("Signing disabled")); + if (server->secMode & SECMODE_SIGN_REQUIRED) + cERROR(1, ("Server requires " + "/proc/fs/cifs/PacketSigningEnabled " + "to be on")); + server->secMode &= ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); - } else if(sign_CIFS_PDUs == 1) { - if((server->secMode & SECMODE_SIGN_REQUIRED) == 0) - server->secMode &= - ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); - } else if(sign_CIFS_PDUs == 2) { - if((server->secMode & + } else if ((secFlags & CIFSSEC_MUST_SIGN) == CIFSSEC_MUST_SIGN) { + /* signing required */ + cFYI(1, ("Must sign - secFlags 0x%x", secFlags)); + if ((server->secMode & (SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED)) == 0) { - cERROR(1,("signing required but server lacks support")); - } + cERROR(1, + ("signing required but server lacks support")); + rc = -EOPNOTSUPP; + } else + server->secMode |= SECMODE_SIGN_REQUIRED; + } else { + /* signing optional ie CIFSSEC_MAY_SIGN */ + if ((server->secMode & SECMODE_SIGN_REQUIRED) == 0) + server->secMode &= + ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); } -neg_err_exit: + +neg_err_exit: cifs_buf_release(pSMB); - cFYI(1,("negprot rc %d",rc)); + cFYI(1, ("negprot rc %d", rc)); return rc; } @@ -669,7 +685,7 @@ CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon) * If last user of the connection and * connection alive - disconnect it * If this is the last connection on the server session disconnect it - * (and inside session disconnect we should check if tcp socket needs + * (and inside session disconnect we should check if tcp socket needs * to be freed and kernel thread woken up). */ if (tcon) @@ -683,18 +699,18 @@ CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon) return -EBUSY; } - /* No need to return error on this operation if tid invalidated and + /* No need to return error on this operation if tid invalidated and closed on server already e.g. due to tcp session crashing */ - if(tcon->tidStatus == CifsNeedReconnect) { + if (tcon->tidStatus == CifsNeedReconnect) { up(&tcon->tconSem); - return 0; + return 0; } - if((tcon->ses == NULL) || (tcon->ses->server == NULL)) { + if ((tcon->ses == NULL) || (tcon->ses->server == NULL)) { up(&tcon->tconSem); return -EIO; } - rc = small_smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon, + rc = small_smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon, (void **)&smb_buffer); if (rc) { up(&tcon->tconSem); @@ -711,7 +727,7 @@ CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon) cifs_small_buf_release(smb_buffer); up(&tcon->tconSem); - /* No need to return error on this operation if tid invalidated and + /* No need to return error on this operation if tid invalidated and closed on server already e.g. due to tcp session crashing */ if (rc == -EAGAIN) rc = 0; @@ -745,11 +761,11 @@ CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses) } smb_buffer_response = (struct smb_hdr *)pSMB; /* BB removeme BB */ - - if(ses->server) { + + if (ses->server) { pSMB->hdr.Mid = GetNextMid(ses->server); - if(ses->server->secMode & + if (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; } @@ -772,7 +788,7 @@ CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses) cifs_small_buf_release(pSMB); /* if session dead then we do not need to do ulogoff, - since server closed smb session, no sense reporting + since server closed smb session, no sense reporting error */ if (rc == -EAGAIN) rc = 0; @@ -780,6 +796,82 @@ CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses) } int +CIFSPOSIXDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, + __u16 type, const struct nls_table *nls_codepage, int remap) +{ + TRANSACTION2_SPI_REQ *pSMB = NULL; + TRANSACTION2_SPI_RSP *pSMBr = NULL; + struct unlink_psx_rq *pRqD; + int name_len; + int rc = 0; + int bytes_returned = 0; + __u16 params, param_offset, offset, byte_count; + + cFYI(1, ("In POSIX delete")); +PsxDelete: + rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, + (void **) &pSMBr); + if (rc) + return rc; + + if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { + name_len = + cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, + PATH_MAX, nls_codepage, remap); + name_len++; /* trailing null */ + name_len *= 2; + } else { /* BB add path length overrun check */ + name_len = strnlen(fileName, PATH_MAX); + name_len++; /* trailing null */ + strncpy(pSMB->FileName, fileName, name_len); + } + + params = 6 + name_len; + pSMB->MaxParameterCount = cpu_to_le16(2); + pSMB->MaxDataCount = 0; /* BB double check this with jra */ + pSMB->MaxSetupCount = 0; + pSMB->Reserved = 0; + pSMB->Flags = 0; + pSMB->Timeout = 0; + pSMB->Reserved2 = 0; + param_offset = offsetof(struct smb_com_transaction2_spi_req, + InformationLevel) - 4; + offset = param_offset + params; + + /* Setup pointer to Request Data (inode type) */ + pRqD = (struct unlink_psx_rq *)(((char *)&pSMB->hdr.Protocol) + offset); + pRqD->type = cpu_to_le16(type); + pSMB->ParameterOffset = cpu_to_le16(param_offset); + pSMB->DataOffset = cpu_to_le16(offset); + pSMB->SetupCount = 1; + pSMB->Reserved3 = 0; + pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); + byte_count = 3 /* pad */ + params + sizeof(struct unlink_psx_rq); + + pSMB->DataCount = cpu_to_le16(sizeof(struct unlink_psx_rq)); + pSMB->TotalDataCount = cpu_to_le16(sizeof(struct unlink_psx_rq)); + pSMB->ParameterCount = cpu_to_le16(params); + pSMB->TotalParameterCount = pSMB->ParameterCount; + pSMB->InformationLevel = cpu_to_le16(SMB_POSIX_UNLINK); + pSMB->Reserved4 = 0; + pSMB->hdr.smb_buf_length += byte_count; + pSMB->ByteCount = cpu_to_le16(byte_count); + rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, + (struct smb_hdr *) pSMBr, &bytes_returned, 0); + if (rc) { + cFYI(1, ("Posix delete returned %d", rc)); + } + cifs_buf_release(pSMB); + + cifs_stats_inc(&tcon->num_deletes); + + if (rc == -EAGAIN) + goto PsxDelete; + + return rc; +} + +int CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, const struct nls_table *nls_codepage, int remap) { @@ -797,7 +889,7 @@ DelFileRetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->fileName, fileName, + cifsConvertToUCS((__le16 *) pSMB->fileName, fileName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; @@ -816,7 +908,7 @@ DelFileRetry: cifs_stats_inc(&tcon->num_deletes); if (rc) { cFYI(1, ("Error in RMFile = %d", rc)); - } + } cifs_buf_release(pSMB); if (rc == -EAGAIN) @@ -826,7 +918,7 @@ DelFileRetry: } int -CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon, const char *dirName, +CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon, const char *dirName, const struct nls_table *nls_codepage, int remap) { DELETE_DIRECTORY_REQ *pSMB = NULL; @@ -887,7 +979,7 @@ MkDirRetry: return rc; if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { - name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, name, + name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, name, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; @@ -916,7 +1008,7 @@ MkDirRetry: int CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, __u32 posix_flags, __u64 mode, __u16 * netfid, FILE_UNIX_BASIC_INFO *pRetData, - __u32 *pOplock, const char *name, + __u32 *pOplock, const char *name, const struct nls_table *nls_codepage, int remap) { TRANSACTION2_SPI_REQ *pSMB = NULL; @@ -924,7 +1016,6 @@ CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, __u32 posix_flags, int name_len; int rc = 0; int bytes_returned = 0; - char *data_offset; __u16 params, param_offset, offset, byte_count, count; OPEN_PSX_REQ * pdata; OPEN_PSX_RSP * psx_rsp; @@ -958,13 +1049,12 @@ PsxCreat: pSMB->Timeout = 0; pSMB->Reserved2 = 0; param_offset = offsetof(struct smb_com_transaction2_spi_req, - InformationLevel) - 4; + InformationLevel) - 4; offset = param_offset + params; - data_offset = (char *) (&pSMB->hdr.Protocol) + offset; pdata = (OPEN_PSX_REQ *)(((char *)&pSMB->hdr.Protocol) + offset); pdata->Level = SMB_QUERY_FILE_UNIX_BASIC; pdata->Permissions = cpu_to_le64(mode); - pdata->PosixOpenFlags = cpu_to_le32(posix_flags); + pdata->PosixOpenFlags = cpu_to_le32(posix_flags); pdata->OpenFlags = cpu_to_le32(*pOplock); pSMB->ParameterOffset = cpu_to_le16(param_offset); pSMB->DataOffset = cpu_to_le16(offset); @@ -979,7 +1069,7 @@ PsxCreat: pSMB->TotalParameterCount = pSMB->ParameterCount; pSMB->InformationLevel = cpu_to_le16(SMB_POSIX_OPEN); pSMB->Reserved4 = 0; - pSMB->hdr.smb_buf_length += byte_count; + pSMB->hdr.smb_buf_length += byte_count; pSMB->ByteCount = cpu_to_le16(byte_count); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); @@ -988,7 +1078,7 @@ PsxCreat: goto psx_create_err; } - cFYI(1,("copying inode info")); + cFYI(1, ("copying inode info")); rc = validate_t2((struct smb_t2_rsp *)pSMBr); if (rc || (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP))) { @@ -997,34 +1087,33 @@ PsxCreat: } /* copy return information to pRetData */ - psx_rsp = (OPEN_PSX_RSP *)((char *) &pSMBr->hdr.Protocol + psx_rsp = (OPEN_PSX_RSP *)((char *) &pSMBr->hdr.Protocol + le16_to_cpu(pSMBr->t2.DataOffset)); - + *pOplock = le16_to_cpu(psx_rsp->OplockFlags); - if(netfid) + if (netfid) *netfid = psx_rsp->Fid; /* cifs fid stays in le */ /* Let caller know file was created so we can set the mode. */ /* Do we care about the CreateAction in any other cases? */ - if(cpu_to_le32(FILE_CREATE) == psx_rsp->CreateAction) + if (cpu_to_le32(FILE_CREATE) == psx_rsp->CreateAction) *pOplock |= CIFS_CREATE_ACTION; /* check to make sure response data is there */ - if(psx_rsp->ReturnedLevel != SMB_QUERY_FILE_UNIX_BASIC) { + if (psx_rsp->ReturnedLevel != SMB_QUERY_FILE_UNIX_BASIC) { pRetData->Type = -1; /* unknown */ #ifdef CONFIG_CIFS_DEBUG2 - cFYI(1,("unknown type")); + cFYI(1, ("unknown type")); #endif } else { - if(pSMBr->ByteCount < sizeof(OPEN_PSX_RSP) + if (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP) + sizeof(FILE_UNIX_BASIC_INFO)) { - cERROR(1,("Open response data too small")); + cERROR(1, ("Open response data too small")); pRetData->Type = -1; goto psx_create_err; } - memcpy((char *) pRetData, + memcpy((char *) pRetData, (char *)psx_rsp + sizeof(OPEN_PSX_RSP), sizeof (FILE_UNIX_BASIC_INFO)); } - psx_create_err: cifs_buf_release(pSMB); @@ -1034,7 +1123,7 @@ psx_create_err: if (rc == -EAGAIN) goto PsxCreat; - return rc; + return rc; } static __u16 convert_disposition(int disposition) @@ -1061,7 +1150,7 @@ static __u16 convert_disposition(int disposition) ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; break; default: - cFYI(1,("unknown disposition %d",disposition)); + cFYI(1, ("unknown disposition %d", disposition)); ofun = SMBOPEN_OAPPEND; /* regular open */ } return ofun; @@ -1071,7 +1160,7 @@ int SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon, const char *fileName, const int openDisposition, const int access_flags, const int create_options, __u16 * netfid, - int *pOplock, FILE_ALL_INFO * pfile_info, + int *pOplock, FILE_ALL_INFO * pfile_info, const struct nls_table *nls_codepage, int remap) { int rc = -EACCES; @@ -1113,16 +1202,16 @@ OldOpenRetry: 1 = write 2 = rw 3 = execute - */ + */ pSMB->Mode = cpu_to_le16(2); pSMB->Mode |= cpu_to_le16(0x40); /* deny none */ /* set file as system file if special file such as fifo and server expecting SFU style and no Unix extensions */ - if(create_options & CREATE_OPTION_SPECIAL) - pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM); - else + if (create_options & CREATE_OPTION_SPECIAL) + pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM); + else pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); /* BB FIXME */ /* if ((omode & S_IWUGO) == 0) @@ -1132,7 +1221,8 @@ OldOpenRetry: being created */ /* BB FIXME BB */ -/* pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK); */ +/* pSMB->CreateOptions = cpu_to_le32(create_options & + CREATE_OPTIONS_MASK); */ /* BB FIXME END BB */ pSMB->Sattr = cpu_to_le16(ATTR_HIDDEN | ATTR_SYSTEM | ATTR_DIRECTORY); @@ -1143,7 +1233,7 @@ OldOpenRetry: pSMB->ByteCount = cpu_to_le16(count); /* long_op set to 1 to allow for oplock break timeouts */ rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, - (struct smb_hdr *) pSMBr, &bytes_returned, 1); + (struct smb_hdr *) pSMBr, &bytes_returned, 1); cifs_stats_inc(&tcon->num_opens); if (rc) { cFYI(1, ("Error in Open = %d", rc)); @@ -1156,17 +1246,17 @@ OldOpenRetry: /* Let caller know file was created so we can set the mode. */ /* Do we care about the CreateAction in any other cases? */ /* BB FIXME BB */ -/* if(cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) +/* if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) *pOplock |= CIFS_CREATE_ACTION; */ /* BB FIXME END */ - if(pfile_info) { + if (pfile_info) { pfile_info->CreationTime = 0; /* BB convert CreateTime*/ pfile_info->LastAccessTime = 0; /* BB fixme */ pfile_info->LastWriteTime = 0; /* BB fixme */ pfile_info->ChangeTime = 0; /* BB fixme */ pfile_info->Attributes = - cpu_to_le32(le16_to_cpu(pSMBr->FileAttributes)); + cpu_to_le32(le16_to_cpu(pSMBr->FileAttributes)); /* the file_info buf is endian converted by caller */ pfile_info->AllocationSize = cpu_to_le64(le32_to_cpu(pSMBr->EndOfFile)); @@ -1185,7 +1275,7 @@ int CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon, const char *fileName, const int openDisposition, const int access_flags, const int create_options, __u16 * netfid, - int *pOplock, FILE_ALL_INFO * pfile_info, + int *pOplock, FILE_ALL_INFO * pfile_info, const struct nls_table *nls_codepage, int remap) { int rc = -EACCES; @@ -1228,7 +1318,7 @@ openRetry: /* set file as system file if special file such as fifo and server expecting SFU style and no Unix extensions */ - if(create_options & CREATE_OPTION_SPECIAL) + if (create_options & CREATE_OPTION_SPECIAL) pSMB->FileAttributes = cpu_to_le32(ATTR_SYSTEM); else pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL); @@ -1266,10 +1356,10 @@ openRetry: *netfid = pSMBr->Fid; /* cifs fid stays in le */ /* Let caller know file was created so we can set the mode. */ /* Do we care about the CreateAction in any other cases? */ - if(cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) - *pOplock |= CIFS_CREATE_ACTION; - if(pfile_info) { - memcpy((char *)pfile_info,(char *)&pSMBr->CreationTime, + if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) + *pOplock |= CIFS_CREATE_ACTION; + if (pfile_info) { + memcpy((char *)pfile_info, (char *)&pSMBr->CreationTime, 36 /* CreationTime to Attributes */); /* the file_info buf is endian converted by caller */ pfile_info->AllocationSize = pSMBr->AllocationSize; @@ -1285,10 +1375,9 @@ openRetry: } int -CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, - const int netfid, const unsigned int count, - const __u64 lseek, unsigned int *nbytes, char **buf, - int * pbuf_type) +CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, const int netfid, + const unsigned int count, const __u64 lseek, unsigned int *nbytes, + char **buf, int *pbuf_type) { int rc = -EACCES; READ_REQ *pSMB = NULL; @@ -1298,8 +1387,8 @@ CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, int resp_buf_type = 0; struct kvec iov[1]; - cFYI(1,("Reading %d bytes on fid %d",count,netfid)); - if(tcon->ses->capabilities & CAP_LARGE_FILES) + cFYI(1, ("Reading %d bytes on fid %d", count, netfid)); + if (tcon->ses->capabilities & CAP_LARGE_FILES) wct = 12; else wct = 10; /* old style read */ @@ -1316,28 +1405,28 @@ CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, pSMB->AndXCommand = 0xFF; /* none */ pSMB->Fid = netfid; pSMB->OffsetLow = cpu_to_le32(lseek & 0xFFFFFFFF); - if(wct == 12) + if (wct == 12) pSMB->OffsetHigh = cpu_to_le32(lseek >> 32); - else if((lseek >> 32) > 0) /* can not handle this big offset for old */ + else if ((lseek >> 32) > 0) /* can not handle this big offset for old */ return -EIO; pSMB->Remaining = 0; pSMB->MaxCount = cpu_to_le16(count & 0xFFFF); pSMB->MaxCountHigh = cpu_to_le32(count >> 16); - if(wct == 12) + if (wct == 12) pSMB->ByteCount = 0; /* no need to do le conversion since 0 */ else { /* old style read */ - struct smb_com_readx_req * pSMBW = + struct smb_com_readx_req *pSMBW = (struct smb_com_readx_req *)pSMB; pSMBW->ByteCount = 0; } iov[0].iov_base = (char *)pSMB; iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; - rc = SendReceive2(xid, tcon->ses, iov, + rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovecs */, - &resp_buf_type, 0); + &resp_buf_type, 0); cifs_stats_inc(&tcon->num_reads); pSMBr = (READ_RSP *)iov[0].iov_base; if (rc) { @@ -1351,33 +1440,34 @@ CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, /*check that DataLength would not go beyond end of SMB */ if ((data_length > CIFSMaxBufSize) || (data_length > count)) { - cFYI(1,("bad length %d for count %d",data_length,count)); + cFYI(1, ("bad length %d for count %d", + data_length, count)); rc = -EIO; *nbytes = 0; } else { pReadData = (char *) (&pSMBr->hdr.Protocol) + le16_to_cpu(pSMBr->DataOffset); -/* if(rc = copy_to_user(buf, pReadData, data_length)) { - cERROR(1,("Faulting on read rc = %d",rc)); - rc = -EFAULT; +/* if (rc = copy_to_user(buf, pReadData, data_length)) { + cERROR(1,("Faulting on read rc = %d",rc)); + rc = -EFAULT; }*/ /* can not use copy_to_user when using page cache*/ - if(*buf) - memcpy(*buf,pReadData,data_length); + if (*buf) + memcpy(*buf, pReadData, data_length); } } /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ - if(*buf) { - if(resp_buf_type == CIFS_SMALL_BUFFER) + if (*buf) { + if (resp_buf_type == CIFS_SMALL_BUFFER) cifs_small_buf_release(iov[0].iov_base); - else if(resp_buf_type == CIFS_LARGE_BUFFER) + else if (resp_buf_type == CIFS_LARGE_BUFFER) cifs_buf_release(iov[0].iov_base); - } else if(resp_buf_type != CIFS_NO_BUFFER) { - /* return buffer to caller to free */ - *buf = iov[0].iov_base; - if(resp_buf_type == CIFS_SMALL_BUFFER) + } else if (resp_buf_type != CIFS_NO_BUFFER) { + /* return buffer to caller to free */ + *buf = iov[0].iov_base; + if (resp_buf_type == CIFS_SMALL_BUFFER) *pbuf_type = CIFS_SMALL_BUFFER; - else if(resp_buf_type == CIFS_LARGE_BUFFER) + else if (resp_buf_type == CIFS_LARGE_BUFFER) *pbuf_type = CIFS_LARGE_BUFFER; } /* else no valid buffer on return - leave as null */ @@ -1391,7 +1481,7 @@ int CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, const int netfid, const unsigned int count, const __u64 offset, unsigned int *nbytes, const char *buf, - const char __user * ubuf, const int long_op) + const char __user *ubuf, const int long_op) { int rc = -EACCES; WRITE_REQ *pSMB = NULL; @@ -1401,10 +1491,10 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, __u16 byte_count; /* cFYI(1,("write at %lld %d bytes",offset,count));*/ - if(tcon->ses == NULL) + if (tcon->ses == NULL) return -ECONNABORTED; - if(tcon->ses->capabilities & CAP_LARGE_FILES) + if (tcon->ses->capabilities & CAP_LARGE_FILES) wct = 14; else wct = 12; @@ -1420,20 +1510,20 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, pSMB->AndXCommand = 0xFF; /* none */ pSMB->Fid = netfid; pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); - if(wct == 14) + if (wct == 14) pSMB->OffsetHigh = cpu_to_le32(offset >> 32); - else if((offset >> 32) > 0) /* can not handle this big offset for old */ + else if ((offset >> 32) > 0) /* can not handle big offset for old srv */ return -EIO; - + pSMB->Reserved = 0xFFFFFFFF; pSMB->WriteMode = 0; pSMB->Remaining = 0; - /* Can increase buffer size if buffer is big enough in some cases - ie we + /* Can increase buffer size if buffer is big enough in some cases ie we can send more if LARGE_WRITE_X capability returned by the server and if our buffer is big enough or if we convert to iovecs on socket writes and eliminate the copy to the CIFS buffer */ - if(tcon->ses->capabilities & CAP_LARGE_WRITE_X) { + if (tcon->ses->capabilities & CAP_LARGE_WRITE_X) { bytes_sent = min_t(const unsigned int, CIFSMaxBufSize, count); } else { bytes_sent = (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) @@ -1443,11 +1533,11 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, if (bytes_sent > count) bytes_sent = count; pSMB->DataOffset = - cpu_to_le16(offsetof(struct smb_com_write_req,Data) - 4); - if(buf) - memcpy(pSMB->Data,buf,bytes_sent); - else if(ubuf) { - if(copy_from_user(pSMB->Data,ubuf,bytes_sent)) { + cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4); + if (buf) + memcpy(pSMB->Data, buf, bytes_sent); + else if (ubuf) { + if (copy_from_user(pSMB->Data, ubuf, bytes_sent)) { cifs_buf_release(pSMB); return -EFAULT; } @@ -1456,7 +1546,7 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, cifs_buf_release(pSMB); return -EINVAL; } /* else setting file size with write of zero bytes */ - if(wct == 14) + if (wct == 14) byte_count = bytes_sent + 1; /* pad */ else /* wct == 12 */ { byte_count = bytes_sent + 5; /* bigger pad, smaller smb hdr */ @@ -1465,10 +1555,11 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, pSMB->DataLengthHigh = cpu_to_le16(bytes_sent >> 16); pSMB->hdr.smb_buf_length += byte_count; - if(wct == 14) + if (wct == 14) pSMB->ByteCount = cpu_to_le16(byte_count); - else { /* old style write has byte count 4 bytes earlier so 4 bytes pad */ - struct smb_com_writex_req * pSMBW = + else { /* old style write has byte count 4 bytes earlier + so 4 bytes pad */ + struct smb_com_writex_req *pSMBW = (struct smb_com_writex_req *)pSMB; pSMBW->ByteCount = cpu_to_le16(byte_count); } @@ -1487,7 +1578,7 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, cifs_buf_release(pSMB); - /* Note: On -EAGAIN error only caller can retry on handle based calls + /* Note: On -EAGAIN error only caller can retry on handle based calls since file handle passed in no longer valid */ return rc; @@ -1505,9 +1596,9 @@ CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, int smb_hdr_len; int resp_buf_type = 0; - cFYI(1,("write2 at %lld %d bytes", (long long)offset, count)); + cFYI(1, ("write2 at %lld %d bytes", (long long)offset, count)); - if(tcon->ses->capabilities & CAP_LARGE_FILES) + if (tcon->ses->capabilities & CAP_LARGE_FILES) wct = 14; else wct = 12; @@ -1521,37 +1612,37 @@ CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, pSMB->AndXCommand = 0xFF; /* none */ pSMB->Fid = netfid; pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); - if(wct == 14) + if (wct == 14) pSMB->OffsetHigh = cpu_to_le32(offset >> 32); - else if((offset >> 32) > 0) /* can not handle this big offset for old */ + else if ((offset >> 32) > 0) /* can not handle big offset for old srv */ return -EIO; pSMB->Reserved = 0xFFFFFFFF; pSMB->WriteMode = 0; pSMB->Remaining = 0; pSMB->DataOffset = - cpu_to_le16(offsetof(struct smb_com_write_req,Data) - 4); + cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4); pSMB->DataLengthLow = cpu_to_le16(count & 0xFFFF); pSMB->DataLengthHigh = cpu_to_le16(count >> 16); smb_hdr_len = pSMB->hdr.smb_buf_length + 1; /* hdr + 1 byte pad */ - if(wct == 14) + if (wct == 14) pSMB->hdr.smb_buf_length += count+1; else /* wct == 12 */ - pSMB->hdr.smb_buf_length += count+5; /* smb data starts later */ - if(wct == 14) + pSMB->hdr.smb_buf_length += count+5; /* smb data starts later */ + if (wct == 14) pSMB->ByteCount = cpu_to_le16(count + 1); else /* wct == 12 */ /* bigger pad, smaller smb hdr, keep offset ok */ { - struct smb_com_writex_req * pSMBW = + struct smb_com_writex_req *pSMBW = (struct smb_com_writex_req *)pSMB; pSMBW->ByteCount = cpu_to_le16(count + 5); } iov[0].iov_base = pSMB; - if(wct == 14) + if (wct == 14) iov[0].iov_len = smb_hdr_len + 4; else /* wct == 12 pad bigger by four bytes */ iov[0].iov_len = smb_hdr_len + 8; - + rc = SendReceive2(xid, tcon->ses, iov, n_vec + 1, &resp_buf_type, long_op); @@ -1559,7 +1650,7 @@ CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, if (rc) { cFYI(1, ("Send error Write2 = %d", rc)); *nbytes = 0; - } else if(resp_buf_type == 0) { + } else if (resp_buf_type == 0) { /* presumably this can not happen, but best to be safe */ rc = -EIO; *nbytes = 0; @@ -1568,15 +1659,15 @@ CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, *nbytes = le16_to_cpu(pSMBr->CountHigh); *nbytes = (*nbytes) << 16; *nbytes += le16_to_cpu(pSMBr->Count); - } + } /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ - if(resp_buf_type == CIFS_SMALL_BUFFER) + if (resp_buf_type == CIFS_SMALL_BUFFER) cifs_small_buf_release(iov[0].iov_base); - else if(resp_buf_type == CIFS_LARGE_BUFFER) + else if (resp_buf_type == CIFS_LARGE_BUFFER) cifs_buf_release(iov[0].iov_base); - /* Note: On -EAGAIN error only caller can retry on handle based calls + /* Note: On -EAGAIN error only caller can retry on handle based calls since file handle passed in no longer valid */ return rc; @@ -1596,7 +1687,7 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, int timeout = 0; __u16 count; - cFYI(1, ("In CIFSSMBLock - timeout %d numLock %d",waitFlag,numLock)); + cFYI(1, ("In CIFSSMBLock - timeout %d numLock %d", waitFlag, numLock)); rc = small_smb_init(SMB_COM_LOCKING_ANDX, 8, tcon, (void **) &pSMB); if (rc) @@ -1604,7 +1695,7 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, pSMBr = (LOCK_RSP *)pSMB; /* BB removeme BB */ - if(lockType == LOCKING_ANDX_OPLOCK_RELEASE) { + if (lockType == LOCKING_ANDX_OPLOCK_RELEASE) { timeout = -1; /* no response expected */ pSMB->Timeout = 0; } else if (waitFlag == TRUE) { @@ -1620,7 +1711,7 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, pSMB->AndXCommand = 0xFF; /* none */ pSMB->Fid = smb_file_id; /* netfid stays le */ - if((numLock != 0) || (numUnlock != 0)) { + if ((numLock != 0) || (numUnlock != 0)) { pSMB->Locks[0].Pid = cpu_to_le16(current->tgid); /* BB where to store pid high? */ pSMB->Locks[0].LengthLow = cpu_to_le32((u32)len); @@ -1648,7 +1739,7 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, } cifs_small_buf_release(pSMB); - /* Note: On -EAGAIN error only caller can retry on handle based calls + /* Note: On -EAGAIN error only caller can retry on handle based calls since file handle passed in no longer valid */ return rc; } @@ -1656,12 +1747,11 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, int CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, const __u16 smb_file_id, const int get_flag, const __u64 len, - struct file_lock *pLockData, const __u16 lock_type, + struct file_lock *pLockData, const __u16 lock_type, const int waitFlag) { struct smb_com_transaction2_sfi_req *pSMB = NULL; struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; - char *data_offset; struct cifs_posix_lock *parm_data; int rc = 0; int timeout = 0; @@ -1670,7 +1760,7 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, cFYI(1, ("Posix Lock")); - if(pLockData == NULL) + if (pLockData == NULL) return EINVAL; rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); @@ -1680,7 +1770,7 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; - params = 6; + params = 6; pSMB->MaxSetupCount = 0; pSMB->Reserved = 0; pSMB->Flags = 0; @@ -1688,14 +1778,12 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; offset = param_offset + params; - data_offset = (char *) (&pSMB->hdr.Protocol) + offset; - count = sizeof(struct cifs_posix_lock); pSMB->MaxParameterCount = cpu_to_le16(2); pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ pSMB->SetupCount = 1; pSMB->Reserved3 = 0; - if(get_flag) + if (get_flag) pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); else pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); @@ -1705,11 +1793,11 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, pSMB->TotalDataCount = pSMB->DataCount; pSMB->TotalParameterCount = pSMB->ParameterCount; pSMB->ParameterOffset = cpu_to_le16(param_offset); - parm_data = (struct cifs_posix_lock *) + parm_data = (struct cifs_posix_lock *) (((char *) &pSMB->hdr.Protocol) + offset); parm_data->lock_type = cpu_to_le16(lock_type); - if(waitFlag) { + if (waitFlag) { timeout = 3; /* blocking operation, no timeout */ parm_data->lock_flags = cpu_to_le16(1); pSMB->Timeout = cpu_to_le32(-1); @@ -1746,22 +1834,22 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, rc = -EIO; /* bad smb */ goto plk_err_exit; } - if(pLockData == NULL) { + if (pLockData == NULL) { rc = -EINVAL; goto plk_err_exit; } data_offset = le16_to_cpu(pSMBr->t2.DataOffset); data_count = le16_to_cpu(pSMBr->t2.DataCount); - if(data_count < sizeof(struct cifs_posix_lock)) { + if (data_count < sizeof(struct cifs_posix_lock)) { rc = -EIO; goto plk_err_exit; } parm_data = (struct cifs_posix_lock *) ((char *)&pSMBr->hdr.Protocol + data_offset); - if(parm_data->lock_type == cpu_to_le16(CIFS_UNLCK)) + if (parm_data->lock_type == cpu_to_le16(CIFS_UNLCK)) pLockData->fl_type = F_UNLCK; } - + plk_err_exit: if (pSMB) cifs_small_buf_release(pSMB); @@ -1784,7 +1872,7 @@ CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id) /* do not retry on dead session on close */ rc = small_smb_init(SMB_COM_CLOSE, 3, tcon, (void **) &pSMB); - if(rc == -EAGAIN) + if (rc == -EAGAIN) return 0; if (rc) return rc; @@ -1798,7 +1886,7 @@ CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id) (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&tcon->num_closes); if (rc) { - if(rc!=-EINTR) { + if (rc != -EINTR) { /* EINTR is expected when user ctl-c to kill app */ cERROR(1, ("Send error in Close = %d", rc)); } @@ -1807,7 +1895,7 @@ CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id) cifs_small_buf_release(pSMB); /* Since session is dead, file will be closed on server already */ - if(rc == -EAGAIN) + if (rc == -EAGAIN) rc = 0; return rc; @@ -1839,7 +1927,7 @@ renameRetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, + cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; @@ -1851,7 +1939,7 @@ renameRetry: toName, PATH_MAX, nls_codepage, remap); name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; name_len2 *= 2; /* convert to bytes */ - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(fromName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->OldFileName, fromName, name_len); @@ -1872,7 +1960,7 @@ renameRetry: cifs_stats_inc(&tcon->num_renames); if (rc) { cFYI(1, ("Send error in rename = %d", rc)); - } + } cifs_buf_release(pSMB); @@ -1882,13 +1970,13 @@ renameRetry: return rc; } -int CIFSSMBRenameOpenFile(const int xid,struct cifsTconInfo *pTcon, - int netfid, char * target_name, - const struct nls_table * nls_codepage, int remap) +int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon, + int netfid, char *target_name, + const struct nls_table *nls_codepage, int remap) { struct smb_com_transaction2_sfi_req *pSMB = NULL; struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; - struct set_file_rename * rename_info; + struct set_file_rename *rename_info; char *data_offset; char dummy_string[30]; int rc = 0; @@ -1927,13 +2015,14 @@ int CIFSSMBRenameOpenFile(const int xid,struct cifsTconInfo *pTcon, rename_info->overwrite = cpu_to_le32(1); rename_info->root_fid = 0; /* unicode only call */ - if(target_name == NULL) { - sprintf(dummy_string,"cifs%x",pSMB->hdr.Mid); - len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, + if (target_name == NULL) { + sprintf(dummy_string, "cifs%x", pSMB->hdr.Mid); + len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, dummy_string, 24, nls_codepage, remap); } else { len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, - target_name, PATH_MAX, nls_codepage, remap); + target_name, PATH_MAX, nls_codepage, + remap); } rename_info->target_name_len = cpu_to_le32(2 * len_of_str); count = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str) + 2; @@ -1947,10 +2036,10 @@ int CIFSSMBRenameOpenFile(const int xid,struct cifsTconInfo *pTcon, pSMB->hdr.smb_buf_length += byte_count; pSMB->ByteCount = cpu_to_le16(byte_count); rc = SendReceive(xid, pTcon->ses, (struct smb_hdr *) pSMB, - (struct smb_hdr *) pSMBr, &bytes_returned, 0); + (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&pTcon->num_t2renames); if (rc) { - cFYI(1,("Send error in Rename (by file handle) = %d", rc)); + cFYI(1, ("Send error in Rename (by file handle) = %d", rc)); } cifs_buf_release(pSMB); @@ -1962,9 +2051,9 @@ int CIFSSMBRenameOpenFile(const int xid,struct cifsTconInfo *pTcon, } int -CIFSSMBCopy(const int xid, struct cifsTconInfo *tcon, const char * fromName, - const __u16 target_tid, const char *toName, const int flags, - const struct nls_table *nls_codepage, int remap) +CIFSSMBCopy(const int xid, struct cifsTconInfo *tcon, const char *fromName, + const __u16 target_tid, const char *toName, const int flags, + const struct nls_table *nls_codepage, int remap) { int rc = 0; COPY_REQ *pSMB = NULL; @@ -1986,7 +2075,7 @@ copyRetry: pSMB->Flags = cpu_to_le16(flags & COPY_TREE); if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { - name_len = cifsConvertToUCS((__le16 *) pSMB->OldFileName, + name_len = cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ @@ -1994,11 +2083,12 @@ copyRetry: pSMB->OldFileName[name_len] = 0x04; /* pad */ /* protocol requires ASCII signature byte on Unicode string */ pSMB->OldFileName[name_len + 1] = 0x00; - name_len2 = cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], + name_len2 = + cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], toName, PATH_MAX, nls_codepage, remap); name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; name_len2 *= 2; /* convert to bytes */ - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(fromName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->OldFileName, fromName, name_len); @@ -2058,7 +2148,7 @@ createSymLinkRetry: name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(fromName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, fromName, name_len); @@ -2070,7 +2160,7 @@ createSymLinkRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; param_offset = offsetof(struct smb_com_transaction2_spi_req, - InformationLevel) - 4; + InformationLevel) - 4; offset = param_offset + params; data_offset = (char *) (&pSMB->hdr.Protocol) + offset; @@ -2081,7 +2171,7 @@ createSymLinkRetry: , nls_codepage); name_len_target++; /* trailing null */ name_len_target *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len_target = strnlen(toName, PATH_MAX); name_len_target++; /* trailing null */ strncpy(data_offset, toName, name_len_target); @@ -2108,9 +2198,7 @@ createSymLinkRetry: (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&tcon->num_symlinks); if (rc) { - cFYI(1, - ("Send error in SetPathInfo (create symlink) = %d", - rc)); + cFYI(1, ("Send error in SetPathInfo create symlink = %d", rc)); } if (pSMB) @@ -2149,7 +2237,7 @@ createHardLinkRetry: name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(toName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, toName, name_len); @@ -2161,7 +2249,7 @@ createHardLinkRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; param_offset = offsetof(struct smb_com_transaction2_spi_req, - InformationLevel) - 4; + InformationLevel) - 4; offset = param_offset + params; data_offset = (char *) (&pSMB->hdr.Protocol) + offset; @@ -2171,7 +2259,7 @@ createHardLinkRetry: nls_codepage, remap); name_len_target++; /* trailing null */ name_len_target *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len_target = strnlen(fromName, PATH_MAX); name_len_target++; /* trailing null */ strncpy(data_offset, fromName, name_len_target); @@ -2243,13 +2331,13 @@ winCreateHardLinkRetry: name_len++; /* trailing null */ name_len *= 2; pSMB->OldFileName[name_len] = 0; /* pad */ - pSMB->OldFileName[name_len + 1] = 0x04; + pSMB->OldFileName[name_len + 1] = 0x04; name_len2 = - cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], + cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], toName, PATH_MAX, nls_codepage, remap); name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; name_len2 *= 2; /* convert to bytes */ - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(fromName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->OldFileName, fromName, name_len); @@ -2302,12 +2390,11 @@ querySymLinkRetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifs_strtoUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX - /* find define for this maxpathcomponent */ - , nls_codepage); + cifs_strtoUCS((__le16 *) pSMB->FileName, searchName, + PATH_MAX, nls_codepage); name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(searchName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, searchName, name_len); @@ -2324,7 +2411,7 @@ querySymLinkRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; pSMB->ParameterOffset = cpu_to_le16(offsetof( - struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); + struct smb_com_transaction2_qpi_req, InformationLevel) - 4); pSMB->DataCount = 0; pSMB->DataOffset = 0; pSMB->SetupCount = 1; @@ -2355,16 +2442,16 @@ querySymLinkRetry: if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = UniStrnlen((wchar_t *) ((char *) - &pSMBr->hdr.Protocol +data_offset), - min_t(const int, buflen,count) / 2); + &pSMBr->hdr.Protocol + data_offset), + min_t(const int, buflen, count) / 2); /* BB FIXME investigate remapping reserved chars here */ cifs_strfromUCS_le(symlinkinfo, - (__le16 *) ((char *)&pSMBr->hdr.Protocol + - data_offset), + (__le16 *) ((char *)&pSMBr->hdr.Protocol + + data_offset), name_len, nls_codepage); } else { strncpy(symlinkinfo, - (char *) &pSMBr->hdr.Protocol + + (char *) &pSMBr->hdr.Protocol + data_offset, min_t(const int, buflen, count)); } @@ -2385,14 +2472,14 @@ querySymLinkRetry: Setup words themselves and ByteCount MaxSetupCount (size of returned setup area) and MaxParameterCount (returned parms size) must be set by caller */ -static int +static int smb_init_ntransact(const __u16 sub_command, const int setup_count, const int parm_len, struct cifsTconInfo *tcon, - void ** ret_buf) + void **ret_buf) { int rc; __u32 temp_offset; - struct smb_com_ntransact_req * pSMB; + struct smb_com_ntransact_req *pSMB; rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon, (void **)&pSMB); @@ -2416,47 +2503,47 @@ smb_init_ntransact(const __u16 sub_command, const int setup_count, } static int -validate_ntransact(char * buf, char ** ppparm, char ** ppdata, - int * pdatalen, int * pparmlen) +validate_ntransact(char *buf, char **ppparm, char **ppdata, + int *pdatalen, int *pparmlen) { - char * end_of_smb; + char *end_of_smb; __u32 data_count, data_offset, parm_count, parm_offset; - struct smb_com_ntransact_rsp * pSMBr; + struct smb_com_ntransact_rsp *pSMBr; - if(buf == NULL) + if (buf == NULL) return -EINVAL; pSMBr = (struct smb_com_ntransact_rsp *)buf; /* ByteCount was converted from little endian in SendReceive */ - end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount + + end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount + (char *)&pSMBr->ByteCount; - data_offset = le32_to_cpu(pSMBr->DataOffset); data_count = le32_to_cpu(pSMBr->DataCount); - parm_offset = le32_to_cpu(pSMBr->ParameterOffset); + parm_offset = le32_to_cpu(pSMBr->ParameterOffset); parm_count = le32_to_cpu(pSMBr->ParameterCount); *ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset; *ppdata = (char *)&pSMBr->hdr.Protocol + data_offset; /* should we also check that parm and data areas do not overlap? */ - if(*ppparm > end_of_smb) { - cFYI(1,("parms start after end of smb")); + if (*ppparm > end_of_smb) { + cFYI(1, ("parms start after end of smb")); return -EINVAL; - } else if(parm_count + *ppparm > end_of_smb) { - cFYI(1,("parm end after end of smb")); + } else if (parm_count + *ppparm > end_of_smb) { + cFYI(1, ("parm end after end of smb")); return -EINVAL; - } else if(*ppdata > end_of_smb) { - cFYI(1,("data starts after end of smb")); + } else if (*ppdata > end_of_smb) { + cFYI(1, ("data starts after end of smb")); return -EINVAL; - } else if(data_count + *ppdata > end_of_smb) { + } else if (data_count + *ppdata > end_of_smb) { cFYI(1,("data %p + count %d (%p) ends after end of smb %p start %p", - *ppdata, data_count, (data_count + *ppdata), end_of_smb, pSMBr)); /* BB FIXME */ + *ppdata, data_count, (data_count + *ppdata), + end_of_smb, pSMBr)); return -EINVAL; - } else if(parm_count + data_count > pSMBr->ByteCount) { - cFYI(1,("parm count and data count larger than SMB")); + } else if (parm_count + data_count > pSMBr->ByteCount) { + cFYI(1, ("parm count and data count larger than SMB")); return -EINVAL; } return 0; @@ -2465,14 +2552,14 @@ validate_ntransact(char * buf, char ** ppparm, char ** ppdata, int CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon, const unsigned char *searchName, - char *symlinkinfo, const int buflen,__u16 fid, + char *symlinkinfo, const int buflen, __u16 fid, const struct nls_table *nls_codepage) { int rc = 0; int bytes_returned; int name_len; - struct smb_com_transaction_ioctl_req * pSMB; - struct smb_com_transaction_ioctl_rsp * pSMBr; + struct smb_com_transaction_ioctl_req *pSMB; + struct smb_com_transaction_ioctl_rsp *pSMBr; cFYI(1, ("In Windows reparse style QueryLink for path %s", searchName)); rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, @@ -2511,47 +2598,53 @@ CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon, /* BB also check enough total bytes returned */ rc = -EIO; /* bad smb */ else { - if(data_count && (data_count < 2048)) { - char * end_of_smb = 2 /* sizeof byte count */ + + if (data_count && (data_count < 2048)) { + char *end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount + (char *)&pSMBr->ByteCount; - struct reparse_data * reparse_buf = (struct reparse_data *) - ((char *)&pSMBr->hdr.Protocol + data_offset); - if((char*)reparse_buf >= end_of_smb) { + struct reparse_data *reparse_buf = + (struct reparse_data *) + ((char *)&pSMBr->hdr.Protocol + + data_offset); + if ((char *)reparse_buf >= end_of_smb) { rc = -EIO; goto qreparse_out; } - if((reparse_buf->LinkNamesBuf + + if ((reparse_buf->LinkNamesBuf + reparse_buf->TargetNameOffset + reparse_buf->TargetNameLen) > end_of_smb) { - cFYI(1,("reparse buf extended beyond SMB")); + cFYI(1,("reparse buf goes beyond SMB")); rc = -EIO; goto qreparse_out; } - + if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = UniStrnlen((wchar_t *) - (reparse_buf->LinkNamesBuf + - reparse_buf->TargetNameOffset), - min(buflen/2, reparse_buf->TargetNameLen / 2)); + (reparse_buf->LinkNamesBuf + + reparse_buf->TargetNameOffset), + min(buflen/2, + reparse_buf->TargetNameLen / 2)); cifs_strfromUCS_le(symlinkinfo, - (__le16 *) (reparse_buf->LinkNamesBuf + + (__le16 *) (reparse_buf->LinkNamesBuf + reparse_buf->TargetNameOffset), name_len, nls_codepage); } else { /* ASCII names */ - strncpy(symlinkinfo,reparse_buf->LinkNamesBuf + - reparse_buf->TargetNameOffset, - min_t(const int, buflen, reparse_buf->TargetNameLen)); + strncpy(symlinkinfo, + reparse_buf->LinkNamesBuf + + reparse_buf->TargetNameOffset, + min_t(const int, buflen, + reparse_buf->TargetNameLen)); } } else { rc = -EIO; - cFYI(1,("Invalid return data count on get reparse info ioctl")); + cFYI(1, ("Invalid return data count on " + "get reparse info ioctl")); } symlinkinfo[buflen] = 0; /* just in case so the caller does not go off the end of the buffer */ - cFYI(1,("readlink result - %s",symlinkinfo)); + cFYI(1, ("readlink result - %s", symlinkinfo)); } } qreparse_out: @@ -2566,7 +2659,8 @@ qreparse_out: #ifdef CONFIG_CIFS_POSIX /*Convert an Access Control Entry from wire format to local POSIX xattr format*/ -static void cifs_convert_ace(posix_acl_xattr_entry * ace, struct cifs_posix_ace * cifs_ace) +static void cifs_convert_ace(posix_acl_xattr_entry *ace, + struct cifs_posix_ace *cifs_ace) { /* u8 cifs fields do not need le conversion */ ace->e_perm = cpu_to_le16(cifs_ace->cifs_e_perm); @@ -2578,30 +2672,31 @@ static void cifs_convert_ace(posix_acl_xattr_entry * ace, struct cifs_posix_ace } /* Convert ACL from CIFS POSIX wire format to local Linux POSIX ACL xattr */ -static int cifs_copy_posix_acl(char * trgt,char * src, const int buflen, - const int acl_type,const int size_of_data_area) +static int cifs_copy_posix_acl(char *trgt, char *src, const int buflen, + const int acl_type, const int size_of_data_area) { int size = 0; int i; __u16 count; - struct cifs_posix_ace * pACE; - struct cifs_posix_acl * cifs_acl = (struct cifs_posix_acl *)src; - posix_acl_xattr_header * local_acl = (posix_acl_xattr_header *)trgt; + struct cifs_posix_ace *pACE; + struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)src; + posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)trgt; if (le16_to_cpu(cifs_acl->version) != CIFS_ACL_VERSION) return -EOPNOTSUPP; - if(acl_type & ACL_TYPE_ACCESS) { + if (acl_type & ACL_TYPE_ACCESS) { count = le16_to_cpu(cifs_acl->access_entry_count); pACE = &cifs_acl->ace_array[0]; size = sizeof(struct cifs_posix_acl); size += sizeof(struct cifs_posix_ace) * count; /* check if we would go beyond end of SMB */ - if(size_of_data_area < size) { - cFYI(1,("bad CIFS POSIX ACL size %d vs. %d",size_of_data_area,size)); + if (size_of_data_area < size) { + cFYI(1, ("bad CIFS POSIX ACL size %d vs. %d", + size_of_data_area, size)); return -EINVAL; } - } else if(acl_type & ACL_TYPE_DEFAULT) { + } else if (acl_type & ACL_TYPE_DEFAULT) { count = le16_to_cpu(cifs_acl->access_entry_count); size = sizeof(struct cifs_posix_acl); size += sizeof(struct cifs_posix_ace) * count; @@ -2610,7 +2705,7 @@ static int cifs_copy_posix_acl(char * trgt,char * src, const int buflen, count = le16_to_cpu(cifs_acl->default_entry_count); size += sizeof(struct cifs_posix_ace) * count; /* check if we would go beyond end of SMB */ - if(size_of_data_area < size) + if (size_of_data_area < size) return -EINVAL; } else { /* illegal type */ @@ -2618,76 +2713,77 @@ static int cifs_copy_posix_acl(char * trgt,char * src, const int buflen, } size = posix_acl_xattr_size(count); - if((buflen == 0) || (local_acl == NULL)) { - /* used to query ACL EA size */ - } else if(size > buflen) { + if ((buflen == 0) || (local_acl == NULL)) { + /* used to query ACL EA size */ + } else if (size > buflen) { return -ERANGE; } else /* buffer big enough */ { local_acl->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION); - for(i = 0;i < count ;i++) { - cifs_convert_ace(&local_acl->a_entries[i],pACE); - pACE ++; + for (i = 0; i < count ; i++) { + cifs_convert_ace(&local_acl->a_entries[i], pACE); + pACE++; } } return size; } -static __u16 convert_ace_to_cifs_ace(struct cifs_posix_ace * cifs_ace, - const posix_acl_xattr_entry * local_ace) +static __u16 convert_ace_to_cifs_ace(struct cifs_posix_ace *cifs_ace, + const posix_acl_xattr_entry *local_ace) { __u16 rc = 0; /* 0 = ACL converted ok */ cifs_ace->cifs_e_perm = le16_to_cpu(local_ace->e_perm); cifs_ace->cifs_e_tag = le16_to_cpu(local_ace->e_tag); /* BB is there a better way to handle the large uid? */ - if(local_ace->e_id == cpu_to_le32(-1)) { + if (local_ace->e_id == cpu_to_le32(-1)) { /* Probably no need to le convert -1 on any arch but can not hurt */ cifs_ace->cifs_uid = cpu_to_le64(-1); - } else + } else cifs_ace->cifs_uid = cpu_to_le64(le32_to_cpu(local_ace->e_id)); - /*cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id));*/ + /*cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id));*/ return rc; } /* Convert ACL from local Linux POSIX xattr to CIFS POSIX ACL wire format */ -static __u16 ACL_to_cifs_posix(char * parm_data,const char * pACL,const int buflen, - const int acl_type) +static __u16 ACL_to_cifs_posix(char *parm_data, const char *pACL, + const int buflen, const int acl_type) { __u16 rc = 0; - struct cifs_posix_acl * cifs_acl = (struct cifs_posix_acl *)parm_data; - posix_acl_xattr_header * local_acl = (posix_acl_xattr_header *)pACL; + struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)parm_data; + posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)pACL; int count; int i; - if((buflen == 0) || (pACL == NULL) || (cifs_acl == NULL)) + if ((buflen == 0) || (pACL == NULL) || (cifs_acl == NULL)) return 0; count = posix_acl_xattr_count((size_t)buflen); - cFYI(1,("setting acl with %d entries from buf of length %d and version of %d", + cFYI(1, ("setting acl with %d entries from buf of length %d and " + "version of %d", count, buflen, le32_to_cpu(local_acl->a_version))); - if(le32_to_cpu(local_acl->a_version) != 2) { - cFYI(1,("unknown POSIX ACL version %d", + if (le32_to_cpu(local_acl->a_version) != 2) { + cFYI(1, ("unknown POSIX ACL version %d", le32_to_cpu(local_acl->a_version))); return 0; } cifs_acl->version = cpu_to_le16(1); - if(acl_type == ACL_TYPE_ACCESS) + if (acl_type == ACL_TYPE_ACCESS) cifs_acl->access_entry_count = cpu_to_le16(count); - else if(acl_type == ACL_TYPE_DEFAULT) + else if (acl_type == ACL_TYPE_DEFAULT) cifs_acl->default_entry_count = cpu_to_le16(count); else { - cFYI(1,("unknown ACL type %d",acl_type)); + cFYI(1, ("unknown ACL type %d", acl_type)); return 0; } - for(i=0;i<count;i++) { + for (i = 0; i < count; i++) { rc = convert_ace_to_cifs_ace(&cifs_acl->ace_array[i], &local_acl->a_entries[i]); - if(rc != 0) { + if (rc != 0) { /* ACE not converted */ break; } } - if(rc == 0) { + if (rc == 0) { rc = (__u16)(count * sizeof(struct cifs_posix_ace)); rc += sizeof(struct cifs_posix_acl); /* BB add check to make sure ACL does not overflow SMB */ @@ -2697,9 +2793,9 @@ static __u16 ACL_to_cifs_posix(char * parm_data,const char * pACL,const int bufl int CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon, - const unsigned char *searchName, - char *acl_inf, const int buflen, const int acl_type, - const struct nls_table *nls_codepage, int remap) + const unsigned char *searchName, + char *acl_inf, const int buflen, const int acl_type, + const struct nls_table *nls_codepage, int remap) { /* SMB_QUERY_POSIX_ACL */ TRANSACTION2_QPI_REQ *pSMB = NULL; @@ -2708,7 +2804,7 @@ CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon, int bytes_returned; int name_len; __u16 params, byte_count; - + cFYI(1, ("In GetPosixACL (Unix) for path %s", searchName)); queryAclRetry: @@ -2716,16 +2812,16 @@ queryAclRetry: (void **) &pSMBr); if (rc) return rc; - + if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, + cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; pSMB->FileName[name_len] = 0; pSMB->FileName[name_len+1] = 0; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(searchName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, searchName, name_len); @@ -2734,7 +2830,7 @@ queryAclRetry: params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; pSMB->TotalDataCount = 0; pSMB->MaxParameterCount = cpu_to_le16(2); - /* BB find exact max data count below from sess structure BB */ + /* BB find exact max data count below from sess structure BB */ pSMB->MaxDataCount = cpu_to_le16(4000); pSMB->MaxSetupCount = 0; pSMB->Reserved = 0; @@ -2742,7 +2838,8 @@ queryAclRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; pSMB->ParameterOffset = cpu_to_le16( - offsetof(struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); + offsetof(struct smb_com_transaction2_qpi_req, + InformationLevel) - 4); pSMB->DataCount = 0; pSMB->DataOffset = 0; pSMB->SetupCount = 1; @@ -2763,7 +2860,7 @@ queryAclRetry: cFYI(1, ("Send error in Query POSIX ACL = %d", rc)); } else { /* decode response */ - + rc = validate_t2((struct smb_t2_rsp *)pSMBr); if (rc || (pSMBr->ByteCount < 2)) /* BB also check enough total bytes returned */ @@ -2773,7 +2870,7 @@ queryAclRetry: __u16 count = le16_to_cpu(pSMBr->t2.DataCount); rc = cifs_copy_posix_acl(acl_inf, (char *)&pSMBr->hdr.Protocol+data_offset, - buflen,acl_type,count); + buflen, acl_type, count); } } cifs_buf_release(pSMB); @@ -2784,10 +2881,10 @@ queryAclRetry: int CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon, - const unsigned char *fileName, - const char *local_acl, const int buflen, - const int acl_type, - const struct nls_table *nls_codepage, int remap) + const unsigned char *fileName, + const char *local_acl, const int buflen, + const int acl_type, + const struct nls_table *nls_codepage, int remap) { struct smb_com_transaction2_spi_req *pSMB = NULL; struct smb_com_transaction2_spi_rsp *pSMBr = NULL; @@ -2800,16 +2897,16 @@ CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon, cFYI(1, ("In SetPosixACL (Unix) for path %s", fileName)); setAclRetry: rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, - (void **) &pSMBr); + (void **) &pSMBr); if (rc) return rc; if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, + cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(fileName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, fileName, name_len); @@ -2823,15 +2920,15 @@ setAclRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; param_offset = offsetof(struct smb_com_transaction2_spi_req, - InformationLevel) - 4; + InformationLevel) - 4; offset = param_offset + params; parm_data = ((char *) &pSMB->hdr.Protocol) + offset; pSMB->ParameterOffset = cpu_to_le16(param_offset); /* convert to on the wire format for POSIX ACL */ - data_count = ACL_to_cifs_posix(parm_data,local_acl,buflen,acl_type); + data_count = ACL_to_cifs_posix(parm_data, local_acl, buflen, acl_type); - if(data_count == 0) { + if (data_count == 0) { rc = -EOPNOTSUPP; goto setACLerrorExit; } @@ -2849,7 +2946,7 @@ setAclRetry: pSMB->hdr.smb_buf_length += byte_count; pSMB->ByteCount = cpu_to_le16(byte_count); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, - (struct smb_hdr *) pSMBr, &bytes_returned, 0); + (struct smb_hdr *) pSMBr, &bytes_returned, 0); if (rc) { cFYI(1, ("Set POSIX ACL returned %d", rc)); } @@ -2864,86 +2961,85 @@ setACLerrorExit: /* BB fix tabs in this function FIXME BB */ int CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon, - const int netfid, __u64 * pExtAttrBits, __u64 *pMask) + const int netfid, __u64 * pExtAttrBits, __u64 *pMask) { - int rc = 0; - struct smb_t2_qfi_req *pSMB = NULL; - struct smb_t2_qfi_rsp *pSMBr = NULL; - int bytes_returned; - __u16 params, byte_count; + int rc = 0; + struct smb_t2_qfi_req *pSMB = NULL; + struct smb_t2_qfi_rsp *pSMBr = NULL; + int bytes_returned; + __u16 params, byte_count; - cFYI(1,("In GetExtAttr")); - if(tcon == NULL) - return -ENODEV; + cFYI(1, ("In GetExtAttr")); + if (tcon == NULL) + return -ENODEV; GetExtAttrRetry: - rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, - (void **) &pSMBr); - if (rc) - return rc; - - params = 2 /* level */ +2 /* fid */; - pSMB->t2.TotalDataCount = 0; - pSMB->t2.MaxParameterCount = cpu_to_le16(4); - /* BB find exact max data count below from sess structure BB */ - pSMB->t2.MaxDataCount = cpu_to_le16(4000); - pSMB->t2.MaxSetupCount = 0; - pSMB->t2.Reserved = 0; - pSMB->t2.Flags = 0; - pSMB->t2.Timeout = 0; - pSMB->t2.Reserved2 = 0; - pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, - Fid) - 4); - pSMB->t2.DataCount = 0; - pSMB->t2.DataOffset = 0; - pSMB->t2.SetupCount = 1; - pSMB->t2.Reserved3 = 0; - pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); - byte_count = params + 1 /* pad */ ; - pSMB->t2.TotalParameterCount = cpu_to_le16(params); - pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; - pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_ATTR_FLAGS); - pSMB->Pad = 0; + rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, + (void **) &pSMBr); + if (rc) + return rc; + + params = 2 /* level */ +2 /* fid */; + pSMB->t2.TotalDataCount = 0; + pSMB->t2.MaxParameterCount = cpu_to_le16(4); + /* BB find exact max data count below from sess structure BB */ + pSMB->t2.MaxDataCount = cpu_to_le16(4000); + pSMB->t2.MaxSetupCount = 0; + pSMB->t2.Reserved = 0; + pSMB->t2.Flags = 0; + pSMB->t2.Timeout = 0; + pSMB->t2.Reserved2 = 0; + pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, + Fid) - 4); + pSMB->t2.DataCount = 0; + pSMB->t2.DataOffset = 0; + pSMB->t2.SetupCount = 1; + pSMB->t2.Reserved3 = 0; + pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); + byte_count = params + 1 /* pad */ ; + pSMB->t2.TotalParameterCount = cpu_to_le16(params); + pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; + pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_ATTR_FLAGS); + pSMB->Pad = 0; pSMB->Fid = netfid; - pSMB->hdr.smb_buf_length += byte_count; - pSMB->t2.ByteCount = cpu_to_le16(byte_count); - - rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, - (struct smb_hdr *) pSMBr, &bytes_returned, 0); - if (rc) { - cFYI(1, ("error %d in GetExtAttr", rc)); - } else { - /* decode response */ - rc = validate_t2((struct smb_t2_rsp *)pSMBr); - if (rc || (pSMBr->ByteCount < 2)) - /* BB also check enough total bytes returned */ - /* If rc should we check for EOPNOSUPP and - disable the srvino flag? or in caller? */ - rc = -EIO; /* bad smb */ - else { - __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); - __u16 count = le16_to_cpu(pSMBr->t2.DataCount); - struct file_chattr_info * pfinfo; - /* BB Do we need a cast or hash here ? */ - if(count != 16) { - cFYI(1, ("Illegal size ret in GetExtAttr")); - rc = -EIO; - goto GetExtAttrOut; - } - pfinfo = (struct file_chattr_info *) - (data_offset + (char *) &pSMBr->hdr.Protocol); - *pExtAttrBits = le64_to_cpu(pfinfo->mode); + pSMB->hdr.smb_buf_length += byte_count; + pSMB->t2.ByteCount = cpu_to_le16(byte_count); + + rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, + (struct smb_hdr *) pSMBr, &bytes_returned, 0); + if (rc) { + cFYI(1, ("error %d in GetExtAttr", rc)); + } else { + /* decode response */ + rc = validate_t2((struct smb_t2_rsp *)pSMBr); + if (rc || (pSMBr->ByteCount < 2)) + /* BB also check enough total bytes returned */ + /* If rc should we check for EOPNOSUPP and + disable the srvino flag? or in caller? */ + rc = -EIO; /* bad smb */ + else { + __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); + __u16 count = le16_to_cpu(pSMBr->t2.DataCount); + struct file_chattr_info *pfinfo; + /* BB Do we need a cast or hash here ? */ + if (count != 16) { + cFYI(1, ("Illegal size ret in GetExtAttr")); + rc = -EIO; + goto GetExtAttrOut; + } + pfinfo = (struct file_chattr_info *) + (data_offset + (char *) &pSMBr->hdr.Protocol); + *pExtAttrBits = le64_to_cpu(pfinfo->mode); *pMask = le64_to_cpu(pfinfo->mask); - } - } + } + } GetExtAttrOut: - cifs_buf_release(pSMB); - if (rc == -EAGAIN) - goto GetExtAttrRetry; - return rc; + cifs_buf_release(pSMB); + if (rc == -EAGAIN) + goto GetExtAttrRetry; + return rc; } - #endif /* CONFIG_POSIX */ @@ -2955,7 +3051,7 @@ static const struct cifs_sid sid_user = {1, 2 , {0, 0, 0, 0, 0, 5}, {32, 545, 0, 0}}; /* Convert CIFS ACL to POSIX form */ -static int parse_sec_desc(struct cifs_sid * psec_desc, int acl_len) +static int parse_sec_desc(struct cifs_sid *psec_desc, int acl_len) { return 0; } @@ -2963,7 +3059,7 @@ static int parse_sec_desc(struct cifs_sid * psec_desc, int acl_len) /* Get Security Descriptor (by handle) from remote server for a file or dir */ int CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, - /* BB fix up return info */ char *acl_inf, const int buflen, + /* BB fix up return info */ char *acl_inf, const int buflen, const int acl_type /* ACCESS/DEFAULT not sure implication */) { int rc = 0; @@ -2973,7 +3069,7 @@ CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, cFYI(1, ("GetCifsACL")); - rc = smb_init_ntransact(NT_TRANSACT_QUERY_SECURITY_DESC, 0, + rc = smb_init_ntransact(NT_TRANSACT_QUERY_SECURITY_DESC, 0, 8 /* parm len */, tcon, (void **) &pSMB); if (rc) return rc; @@ -2994,23 +3090,23 @@ CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, if (rc) { cFYI(1, ("Send error in QuerySecDesc = %d", rc)); } else { /* decode response */ - struct cifs_sid * psec_desc; + struct cifs_sid *psec_desc; __le32 * parm; int parm_len; int data_len; int acl_len; - struct smb_com_ntransact_rsp * pSMBr; + struct smb_com_ntransact_rsp *pSMBr; /* validate_nttransact */ - rc = validate_ntransact(iov[0].iov_base, (char **)&parm, + rc = validate_ntransact(iov[0].iov_base, (char **)&parm, (char **)&psec_desc, &parm_len, &data_len); - - if(rc) + if (rc) goto qsec_out; pSMBr = (struct smb_com_ntransact_rsp *)iov[0].iov_base; - cERROR(1,("smb %p parm %p data %p",pSMBr,parm,psec_desc)); /* BB removeme BB */ + cERROR(1, ("smb %p parm %p data %p", + pSMBr, parm, psec_desc)); /* BB removeme BB */ if (le32_to_cpu(pSMBr->ParameterCount) != 4) { rc = -EIO; /* bad smb */ @@ -3020,14 +3116,14 @@ CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, /* BB check that data area is minimum length and as big as acl_len */ acl_len = le32_to_cpu(*(__le32 *)parm); - /* BB check if(acl_len > bufsize) */ + /* BB check if (acl_len > bufsize) */ parse_sec_desc(psec_desc, acl_len); } qsec_out: - if(buf_type == CIFS_SMALL_BUFFER) + if (buf_type == CIFS_SMALL_BUFFER) cifs_small_buf_release(iov[0].iov_base); - else if(buf_type == CIFS_LARGE_BUFFER) + else if (buf_type == CIFS_LARGE_BUFFER) cifs_buf_release(iov[0].iov_base); /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ return rc; @@ -3036,9 +3132,9 @@ qsec_out: /* Legacy Query Path Information call for lookup to old servers such as Win9x/WinME */ int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon, - const unsigned char *searchName, - FILE_ALL_INFO * pFinfo, - const struct nls_table *nls_codepage, int remap) + const unsigned char *searchName, + FILE_ALL_INFO *pFinfo, + const struct nls_table *nls_codepage, int remap) { QUERY_INFORMATION_REQ * pSMB; QUERY_INFORMATION_RSP * pSMBr; @@ -3046,31 +3142,31 @@ int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon, int bytes_returned; int name_len; - cFYI(1, ("In SMBQPath path %s", searchName)); + cFYI(1, ("In SMBQPath path %s", searchName)); QInfRetry: rc = smb_init(SMB_COM_QUERY_INFORMATION, 0, tcon, (void **) &pSMB, - (void **) &pSMBr); + (void **) &pSMBr); if (rc) return rc; if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, - PATH_MAX, nls_codepage, remap); + cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, + PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; - } else { + } else { name_len = strnlen(searchName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, searchName, name_len); } pSMB->BufferFormat = 0x04; - name_len++; /* account for buffer type byte */ + name_len++; /* account for buffer type byte */ pSMB->hdr.smb_buf_length += (__u16) name_len; pSMB->ByteCount = cpu_to_le16(name_len); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, - (struct smb_hdr *) pSMBr, &bytes_returned, 0); + (struct smb_hdr *) pSMBr, &bytes_returned, 0); if (rc) { cFYI(1, ("Send error in QueryInfo = %d", rc)); } else if (pFinfo) { /* decode response */ @@ -3127,17 +3223,17 @@ QPathInfoRetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, + cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(searchName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, searchName, name_len); } - params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; + params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; pSMB->TotalDataCount = 0; pSMB->MaxParameterCount = cpu_to_le16(2); pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ @@ -3147,7 +3243,7 @@ QPathInfoRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; pSMB->ParameterOffset = cpu_to_le16(offsetof( - struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); + struct smb_com_transaction2_qpi_req, InformationLevel) - 4); pSMB->DataCount = 0; pSMB->DataOffset = 0; pSMB->SetupCount = 1; @@ -3156,7 +3252,7 @@ QPathInfoRetry: byte_count = params + 1 /* pad */ ; pSMB->TotalParameterCount = cpu_to_le16(params); pSMB->ParameterCount = pSMB->TotalParameterCount; - if(legacy) + if (legacy) pSMB->InformationLevel = cpu_to_le16(SMB_INFO_STANDARD); else pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO); @@ -3173,16 +3269,18 @@ QPathInfoRetry: if (rc) /* BB add auto retry on EOPNOTSUPP? */ rc = -EIO; - else if (!legacy && (pSMBr->ByteCount < 40)) + else if (!legacy && (pSMBr->ByteCount < 40)) rc = -EIO; /* bad smb */ - else if(legacy && (pSMBr->ByteCount < 24)) - rc = -EIO; /* 24 or 26 expected but we do not read last field */ - else if (pFindData){ + else if (legacy && (pSMBr->ByteCount < 24)) + rc = -EIO; /* 24 or 26 expected but we do not read + last field */ + else if (pFindData) { int size; __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); - if(legacy) /* we do not read the last field, EAsize, fortunately - since it varies by subdialect and on Set vs. Get, is - two bytes or 4 bytes depending but we don't care here */ + if (legacy) /* we do not read the last field, EAsize, + fortunately since it varies by subdialect + and on Set vs. Get, is two bytes or 4 + bytes depending but we don't care here */ size = sizeof(FILE_INFO_STANDARD); else size = sizeof(FILE_ALL_INFO); @@ -3226,24 +3324,24 @@ UnixQPathInfoRetry: PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(searchName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, searchName, name_len); } - params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; + params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; pSMB->TotalDataCount = 0; pSMB->MaxParameterCount = cpu_to_le16(2); /* BB find exact max SMB PDU from sess structure BB */ - pSMB->MaxDataCount = cpu_to_le16(4000); + pSMB->MaxDataCount = cpu_to_le16(4000); pSMB->MaxSetupCount = 0; pSMB->Reserved = 0; pSMB->Flags = 0; pSMB->Timeout = 0; pSMB->Reserved2 = 0; pSMB->ParameterOffset = cpu_to_le16(offsetof( - struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); + struct smb_com_transaction2_qpi_req, InformationLevel) - 4); pSMB->DataCount = 0; pSMB->DataOffset = 0; pSMB->SetupCount = 1; @@ -3303,12 +3401,11 @@ findUniqueRetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX - /* find define for this maxpathcomponent */ - , nls_codepage); + cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, + PATH_MAX, nls_codepage); name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(searchName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, searchName, name_len); @@ -3324,7 +3421,7 @@ findUniqueRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; pSMB->ParameterOffset = cpu_to_le16( - offsetof(struct smb_com_transaction2_ffirst_req,InformationLevel) - 4); + offsetof(struct smb_com_transaction2_ffirst_req, InformationLevel)-4); pSMB->DataCount = 0; pSMB->DataOffset = 0; pSMB->SetupCount = 1; /* one byte, no need to le convert */ @@ -3364,10 +3461,10 @@ findUniqueRetry: /* xid, tcon, searchName and codepage are input parms, rest are returned */ int CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, - const char *searchName, + const char *searchName, const struct nls_table *nls_codepage, - __u16 * pnetfid, - struct cifs_search_info * psrch_inf, int remap, const char dirsep) + __u16 *pnetfid, + struct cifs_search_info *psrch_inf, int remap, const char dirsep) { /* level 257 SMB_ */ TRANSACTION2_FFIRST_REQ *pSMB = NULL; @@ -3378,7 +3475,7 @@ CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, int name_len; __u16 params, byte_count; - cFYI(1, ("In FindFirst for %s",searchName)); + cFYI(1, ("In FindFirst for %s", searchName)); findFirstRetry: rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, @@ -3388,7 +3485,7 @@ findFirstRetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName,searchName, + cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX, nls_codepage, remap); /* We can not add the asterik earlier in case it got remapped to 0xF03A as if it were part of the @@ -3405,7 +3502,7 @@ findFirstRetry: } else { /* BB add check for overrun of SMB buf BB */ name_len = strnlen(searchName, PATH_MAX); /* BB fix here and in unicode clause above ie - if(name_len > buffersize-header) + if (name_len > buffersize-header) free buffer exit; BB */ strncpy(pSMB->FileName, searchName, name_len); pSMB->FileName[name_len] = dirsep; @@ -3438,8 +3535,8 @@ findFirstRetry: pSMB->SearchAttributes = cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | ATTR_DIRECTORY); - pSMB->SearchCount= cpu_to_le16(CIFSMaxBufSize/sizeof(FILE_UNIX_INFO)); - pSMB->SearchFlags = cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | + pSMB->SearchCount = cpu_to_le16(CIFSMaxBufSize/sizeof(FILE_UNIX_INFO)); + pSMB->SearchFlags = cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | CIFS_SEARCH_RETURN_RESUME); pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); @@ -3466,7 +3563,7 @@ findFirstRetry: } else { /* decode response */ /* BB remember to free buffer if error BB */ rc = validate_t2((struct smb_t2_rsp *)pSMBr); - if(rc == 0) { + if (rc == 0) { if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) psrch_inf->unicode = TRUE; else @@ -3474,18 +3571,19 @@ findFirstRetry: psrch_inf->ntwrk_buf_start = (char *)pSMBr; psrch_inf->smallBuf = 0; - psrch_inf->srch_entries_start = - (char *) &pSMBr->hdr.Protocol + + psrch_inf->srch_entries_start = + (char *) &pSMBr->hdr.Protocol + le16_to_cpu(pSMBr->t2.DataOffset); parms = (T2_FFIRST_RSP_PARMS *)((char *) &pSMBr->hdr.Protocol + le16_to_cpu(pSMBr->t2.ParameterOffset)); - if(parms->EndofSearch) + if (parms->EndofSearch) psrch_inf->endOfSearch = TRUE; else psrch_inf->endOfSearch = FALSE; - psrch_inf->entries_in_buffer = le16_to_cpu(parms->SearchCount); + psrch_inf->entries_in_buffer = + le16_to_cpu(parms->SearchCount); psrch_inf->index_of_last_entry = 2 /* skip . and .. */ + psrch_inf->entries_in_buffer; *pnetfid = parms->SearchHandle; @@ -3498,7 +3596,7 @@ findFirstRetry: } int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, - __u16 searchHandle, struct cifs_search_info * psrch_inf) + __u16 searchHandle, struct cifs_search_info *psrch_inf) { TRANSACTION2_FNEXT_REQ *pSMB = NULL; TRANSACTION2_FNEXT_RSP *pSMBr = NULL; @@ -3510,7 +3608,7 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, cFYI(1, ("In FindNext")); - if(psrch_inf->endOfSearch == TRUE) + if (psrch_inf->endOfSearch == TRUE) return -ENOENT; rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, @@ -3518,12 +3616,13 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, if (rc) return rc; - params = 14; /* includes 2 bytes of null string, converted to LE below */ + params = 14; /* includes 2 bytes of null string, converted to LE below*/ byte_count = 0; pSMB->TotalDataCount = 0; /* no EAs */ pSMB->MaxParameterCount = cpu_to_le16(8); pSMB->MaxDataCount = - cpu_to_le16((tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); + cpu_to_le16((tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & + 0xFFFFFF00); pSMB->MaxSetupCount = 0; pSMB->Reserved = 0; pSMB->Flags = 0; @@ -3539,15 +3638,6 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, pSMB->SearchHandle = searchHandle; /* always kept as le */ pSMB->SearchCount = cpu_to_le16(CIFSMaxBufSize / sizeof (FILE_UNIX_INFO)); - /* test for Unix extensions */ -/* if (tcon->ses->capabilities & CAP_UNIX) { - pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_UNIX); - psrch_inf->info_level = SMB_FIND_FILE_UNIX; - } else { - pSMB->InformationLevel = - cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO); - psrch_inf->info_level = SMB_FIND_FILE_DIRECTORY_INFO; - } */ pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); pSMB->ResumeKey = psrch_inf->resume_key; pSMB->SearchFlags = @@ -3555,7 +3645,7 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, name_len = psrch_inf->resume_name_len; params += name_len; - if(name_len < PATH_MAX) { + if (name_len < PATH_MAX) { memcpy(pSMB->ResumeFileName, psrch_inf->presume_name, name_len); byte_count += name_len; /* 14 byte parm len above enough for 2 byte null terminator */ @@ -3570,20 +3660,20 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, pSMB->ParameterCount = pSMB->TotalParameterCount; pSMB->hdr.smb_buf_length += byte_count; pSMB->ByteCount = cpu_to_le16(byte_count); - + rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&tcon->num_fnext); if (rc) { if (rc == -EBADF) { psrch_inf->endOfSearch = TRUE; - rc = 0; /* search probably was closed at end of search above */ + rc = 0; /* search probably was closed at end of search*/ } else cFYI(1, ("FindNext returned = %d", rc)); } else { /* decode response */ rc = validate_t2((struct smb_t2_rsp *)pSMBr); - - if(rc == 0) { + + if (rc == 0) { /* BB fixme add lock for file (srch_info) struct here */ if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) psrch_inf->unicode = TRUE; @@ -3594,7 +3684,7 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, parms = (T2_FNEXT_RSP_PARMS *)response_data; response_data = (char *)&pSMBr->hdr.Protocol + le16_to_cpu(pSMBr->t2.DataOffset); - if(psrch_inf->smallBuf) + if (psrch_inf->smallBuf) cifs_small_buf_release( psrch_inf->ntwrk_buf_start); else @@ -3602,15 +3692,16 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, psrch_inf->srch_entries_start = response_data; psrch_inf->ntwrk_buf_start = (char *)pSMB; psrch_inf->smallBuf = 0; - if(parms->EndofSearch) + if (parms->EndofSearch) psrch_inf->endOfSearch = TRUE; else psrch_inf->endOfSearch = FALSE; - - psrch_inf->entries_in_buffer = le16_to_cpu(parms->SearchCount); + psrch_inf->entries_in_buffer = + le16_to_cpu(parms->SearchCount); psrch_inf->index_of_last_entry += psrch_inf->entries_in_buffer; -/* cFYI(1,("fnxt2 entries in buf %d index_of_last %d",psrch_inf->entries_in_buffer,psrch_inf->index_of_last_entry)); */ +/* cFYI(1,("fnxt2 entries in buf %d index_of_last %d", + psrch_inf->entries_in_buffer, psrch_inf->index_of_last_entry)); */ /* BB fixme add unlock here */ } @@ -3625,12 +3716,12 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, FNext2_err_exit: if (rc != 0) cifs_buf_release(pSMB); - return rc; } int -CIFSFindClose(const int xid, struct cifsTconInfo *tcon, const __u16 searchHandle) +CIFSFindClose(const int xid, struct cifsTconInfo *tcon, + const __u16 searchHandle) { int rc = 0; FINDCLOSE_REQ *pSMB = NULL; @@ -3642,7 +3733,7 @@ CIFSFindClose(const int xid, struct cifsTconInfo *tcon, const __u16 searchHandle /* no sense returning error if session restarted as file handle has been closed */ - if(rc == -EAGAIN) + if (rc == -EAGAIN) return 0; if (rc) return rc; @@ -3667,9 +3758,9 @@ CIFSFindClose(const int xid, struct cifsTconInfo *tcon, const __u16 searchHandle int CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon, - const unsigned char *searchName, - __u64 * inode_number, - const struct nls_table *nls_codepage, int remap) + const unsigned char *searchName, + __u64 * inode_number, + const struct nls_table *nls_codepage, int remap) { int rc = 0; TRANSACTION2_QPI_REQ *pSMB = NULL; @@ -3677,24 +3768,23 @@ CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon, int name_len, bytes_returned; __u16 params, byte_count; - cFYI(1,("In GetSrvInodeNum for %s",searchName)); - if(tcon == NULL) - return -ENODEV; + cFYI(1, ("In GetSrvInodeNum for %s", searchName)); + if (tcon == NULL) + return -ENODEV; GetInodeNumberRetry: rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, - (void **) &pSMBr); + (void **) &pSMBr); if (rc) return rc; - if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, - PATH_MAX,nls_codepage, remap); + PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(searchName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, searchName, name_len); @@ -3711,7 +3801,7 @@ GetInodeNumberRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; pSMB->ParameterOffset = cpu_to_le16(offsetof( - struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); + struct smb_com_transaction2_qpi_req, InformationLevel) - 4); pSMB->DataCount = 0; pSMB->DataOffset = 0; pSMB->SetupCount = 1; @@ -3737,12 +3827,12 @@ GetInodeNumberRetry: /* If rc should we check for EOPNOSUPP and disable the srvino flag? or in caller? */ rc = -EIO; /* bad smb */ - else { + else { __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); __u16 count = le16_to_cpu(pSMBr->t2.DataCount); - struct file_internal_info * pfinfo; + struct file_internal_info *pfinfo; /* BB Do we need a cast or hash here ? */ - if(count < 8) { + if (count < 8) { cFYI(1, ("Illegal size ret in QryIntrnlInf")); rc = -EIO; goto GetInodeNumOut; @@ -3769,12 +3859,12 @@ CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses, /* TRANS2_GET_DFS_REFERRAL */ TRANSACTION2_GET_DFS_REFER_REQ *pSMB = NULL; TRANSACTION2_GET_DFS_REFER_RSP *pSMBr = NULL; - struct dfs_referral_level_3 * referrals = NULL; + struct dfs_referral_level_3 *referrals = NULL; int rc = 0; int bytes_returned; int name_len; unsigned int i; - char * temp; + char *temp; __u16 params, byte_count; *number_of_UNC_in_array = 0; *targetUNCs = NULL; @@ -3787,8 +3877,8 @@ getDFSRetry: (void **) &pSMBr); if (rc) return rc; - - /* server pointer checked in called function, + + /* server pointer checked in called function, but should never be null here anyway */ pSMB->hdr.Mid = GetNextMid(ses->server); pSMB->hdr.Tid = ses->ipc_tid; @@ -3807,19 +3897,19 @@ getDFSRetry: searchName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(searchName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->RequestFileName, searchName, name_len); } - if(ses->server) { - if(ses->server->secMode & + if (ses->server) { + if (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; } - pSMB->hdr.Uid = ses->Suid; + pSMB->hdr.Uid = ses->Suid; params = 2 /* level */ + name_len /*includes null */ ; pSMB->TotalDataCount = 0; @@ -3833,7 +3923,7 @@ getDFSRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; pSMB->ParameterOffset = cpu_to_le16(offsetof( - struct smb_com_transaction2_get_dfs_refer_req, MaxReferralLevel) - 4); + struct smb_com_transaction2_get_dfs_refer_req, MaxReferralLevel) - 4); pSMB->SetupCount = 1; pSMB->Reserved3 = 0; pSMB->SubCommand = cpu_to_le16(TRANS2_GET_DFS_REFERRAL); @@ -3852,74 +3942,87 @@ getDFSRetry: /* BB Add logic to parse referrals here */ rc = validate_t2((struct smb_t2_rsp *)pSMBr); - if (rc || (pSMBr->ByteCount < 17)) /* BB also check enough total bytes returned */ + /* BB Also check if enough total bytes returned? */ + if (rc || (pSMBr->ByteCount < 17)) rc = -EIO; /* bad smb */ else { - __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); + __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); __u16 data_count = le16_to_cpu(pSMBr->t2.DataCount); cFYI(1, - ("Decoding GetDFSRefer response. BCC: %d Offset %d", + ("Decoding GetDFSRefer response BCC: %d Offset %d", pSMBr->ByteCount, data_offset)); - referrals = - (struct dfs_referral_level_3 *) + referrals = + (struct dfs_referral_level_3 *) (8 /* sizeof start of data block */ + data_offset + - (char *) &pSMBr->hdr.Protocol); - cFYI(1,("num_referrals: %d dfs flags: 0x%x ... \nfor referral one refer size: 0x%x srv type: 0x%x refer flags: 0x%x ttl: 0x%x", - le16_to_cpu(pSMBr->NumberOfReferrals),le16_to_cpu(pSMBr->DFSFlags), le16_to_cpu(referrals->ReferralSize),le16_to_cpu(referrals->ServerType),le16_to_cpu(referrals->ReferralFlags),le16_to_cpu(referrals->TimeToLive))); + (char *) &pSMBr->hdr.Protocol); + cFYI(1, ("num_referrals: %d dfs flags: 0x%x ... \n" + "for referral one refer size: 0x%x srv " + "type: 0x%x refer flags: 0x%x ttl: 0x%x", + le16_to_cpu(pSMBr->NumberOfReferrals), + le16_to_cpu(pSMBr->DFSFlags), + le16_to_cpu(referrals->ReferralSize), + le16_to_cpu(referrals->ServerType), + le16_to_cpu(referrals->ReferralFlags), + le16_to_cpu(referrals->TimeToLive))); /* BB This field is actually two bytes in from start of data block so we could do safety check that DataBlock begins at address of pSMBr->NumberOfReferrals */ - *number_of_UNC_in_array = le16_to_cpu(pSMBr->NumberOfReferrals); + *number_of_UNC_in_array = + le16_to_cpu(pSMBr->NumberOfReferrals); /* BB Fix below so can return more than one referral */ - if(*number_of_UNC_in_array > 1) + if (*number_of_UNC_in_array > 1) *number_of_UNC_in_array = 1; /* get the length of the strings describing refs */ name_len = 0; - for(i=0;i<*number_of_UNC_in_array;i++) { + for (i = 0; i < *number_of_UNC_in_array; i++) { /* make sure that DfsPathOffset not past end */ - __u16 offset = le16_to_cpu(referrals->DfsPathOffset); + __u16 offset = + le16_to_cpu(referrals->DfsPathOffset); if (offset > data_count) { - /* if invalid referral, stop here and do + /* if invalid referral, stop here and do not try to copy any more */ *number_of_UNC_in_array = i; break; - } + } temp = ((char *)referrals) + offset; if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { - name_len += UniStrnlen((wchar_t *)temp,data_count); + name_len += UniStrnlen((wchar_t *)temp, + data_count); } else { - name_len += strnlen(temp,data_count); + name_len += strnlen(temp, data_count); } referrals++; - /* BB add check that referral pointer does not fall off end PDU */ - + /* BB add check that referral pointer does + not fall off end PDU */ } /* BB add check for name_len bigger than bcc */ - *targetUNCs = - kmalloc(name_len+1+ (*number_of_UNC_in_array),GFP_KERNEL); - if(*targetUNCs == NULL) { + *targetUNCs = + kmalloc(name_len+1+(*number_of_UNC_in_array), + GFP_KERNEL); + if (*targetUNCs == NULL) { rc = -ENOMEM; goto GetDFSRefExit; } /* copy the ref strings */ - referrals = - (struct dfs_referral_level_3 *) - (8 /* sizeof data hdr */ + - data_offset + + referrals = (struct dfs_referral_level_3 *) + (8 /* sizeof data hdr */ + data_offset + (char *) &pSMBr->hdr.Protocol); - for(i=0;i<*number_of_UNC_in_array;i++) { - temp = ((char *)referrals) + le16_to_cpu(referrals->DfsPathOffset); + for (i = 0; i < *number_of_UNC_in_array; i++) { + temp = ((char *)referrals) + + le16_to_cpu(referrals->DfsPathOffset); if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { cifs_strfromUCS_le(*targetUNCs, - (__le16 *) temp, name_len, nls_codepage); + (__le16 *) temp, + name_len, + nls_codepage); } else { - strncpy(*targetUNCs,temp,name_len); + strncpy(*targetUNCs, temp, name_len); } /* BB update target_uncs pointers */ referrals++; @@ -3996,18 +4099,17 @@ oldQFSInfoRetry: rc = -EIO; /* bad smb */ else { __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); - cFYI(1,("qfsinf resp BCC: %d Offset %d", + cFYI(1, ("qfsinf resp BCC: %d Offset %d", pSMBr->ByteCount, data_offset)); - response_data = - (FILE_SYSTEM_ALLOC_INFO *) + response_data = (FILE_SYSTEM_ALLOC_INFO *) (((char *) &pSMBr->hdr.Protocol) + data_offset); FSData->f_bsize = le16_to_cpu(response_data->BytesPerSector) * le32_to_cpu(response_data-> SectorsPerAllocationUnit); FSData->f_blocks = - le32_to_cpu(response_data->TotalAllocationUnits); + le32_to_cpu(response_data->TotalAllocationUnits); FSData->f_bfree = FSData->f_bavail = le32_to_cpu(response_data->FreeAllocationUnits); cFYI(1, @@ -4056,7 +4158,7 @@ QFSInfoRetry: pSMB->TotalParameterCount = cpu_to_le16(params); pSMB->ParameterCount = pSMB->TotalParameterCount; pSMB->ParameterOffset = cpu_to_le16(offsetof( - struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); + struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); pSMB->DataCount = 0; pSMB->DataOffset = 0; pSMB->SetupCount = 1; @@ -4071,7 +4173,7 @@ QFSInfoRetry: if (rc) { cFYI(1, ("Send error in QFSInfo = %d", rc)); } else { /* decode response */ - rc = validate_t2((struct smb_t2_rsp *)pSMBr); + rc = validate_t2((struct smb_t2_rsp *)pSMBr); if (rc || (pSMBr->ByteCount < 24)) rc = -EIO; /* bad smb */ @@ -4136,7 +4238,7 @@ QFSAttributeRetry: pSMB->TotalParameterCount = cpu_to_le16(params); pSMB->ParameterCount = pSMB->TotalParameterCount; pSMB->ParameterOffset = cpu_to_le16(offsetof( - struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); + struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); pSMB->DataCount = 0; pSMB->DataOffset = 0; pSMB->SetupCount = 1; @@ -4153,7 +4255,8 @@ QFSAttributeRetry: } else { /* decode response */ rc = validate_t2((struct smb_t2_rsp *)pSMBr); - if (rc || (pSMBr->ByteCount < 13)) { /* BB also check enough bytes returned */ + if (rc || (pSMBr->ByteCount < 13)) { + /* BB also check if enough bytes returned */ rc = -EIO; /* bad smb */ } else { __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); @@ -4204,7 +4307,7 @@ QFSDeviceRetry: pSMB->TotalParameterCount = cpu_to_le16(params); pSMB->ParameterCount = pSMB->TotalParameterCount; pSMB->ParameterOffset = cpu_to_le16(offsetof( - struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); + struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); pSMB->DataCount = 0; pSMB->DataOffset = 0; @@ -4274,8 +4377,8 @@ QFSUnixRetry: byte_count = params + 1 /* pad */ ; pSMB->ParameterCount = cpu_to_le16(params); pSMB->TotalParameterCount = pSMB->ParameterCount; - pSMB->ParameterOffset = cpu_to_le16(offsetof(struct - smb_com_transaction2_qfsi_req, InformationLevel) - 4); + pSMB->ParameterOffset = cpu_to_le16(offsetof(struct + smb_com_transaction2_qfsi_req, InformationLevel) - 4); pSMB->SetupCount = 1; pSMB->Reserved3 = 0; pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); @@ -4335,7 +4438,8 @@ SETFSUnixRetry: pSMB->Flags = 0; pSMB->Timeout = 0; pSMB->Reserved2 = 0; - param_offset = offsetof(struct smb_com_transaction2_setfsi_req, FileNum) - 4; + param_offset = offsetof(struct smb_com_transaction2_setfsi_req, FileNum) + - 4; offset = param_offset + params; pSMB->MaxParameterCount = cpu_to_le16(4); @@ -4417,8 +4521,8 @@ QFSPosixRetry: byte_count = params + 1 /* pad */ ; pSMB->ParameterCount = cpu_to_le16(params); pSMB->TotalParameterCount = pSMB->ParameterCount; - pSMB->ParameterOffset = cpu_to_le16(offsetof(struct - smb_com_transaction2_qfsi_req, InformationLevel) - 4); + pSMB->ParameterOffset = cpu_to_le16(offsetof(struct + smb_com_transaction2_qfsi_req, InformationLevel) - 4); pSMB->SetupCount = 1; pSMB->Reserved3 = 0; pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); @@ -4447,18 +4551,18 @@ QFSPosixRetry: le64_to_cpu(response_data->TotalBlocks); FSData->f_bfree = le64_to_cpu(response_data->BlocksAvail); - if(response_data->UserBlocksAvail == cpu_to_le64(-1)) { + if (response_data->UserBlocksAvail == cpu_to_le64(-1)) { FSData->f_bavail = FSData->f_bfree; } else { FSData->f_bavail = - le64_to_cpu(response_data->UserBlocksAvail); + le64_to_cpu(response_data->UserBlocksAvail); } - if(response_data->TotalFileNodes != cpu_to_le64(-1)) + if (response_data->TotalFileNodes != cpu_to_le64(-1)) FSData->f_files = - le64_to_cpu(response_data->TotalFileNodes); - if(response_data->FreeFileNodes != cpu_to_le64(-1)) + le64_to_cpu(response_data->TotalFileNodes); + if (response_data->FreeFileNodes != cpu_to_le64(-1)) FSData->f_ffree = - le64_to_cpu(response_data->FreeFileNodes); + le64_to_cpu(response_data->FreeFileNodes); } } cifs_buf_release(pSMB); @@ -4470,15 +4574,15 @@ QFSPosixRetry: } -/* We can not use write of zero bytes trick to - set file size due to need for large file support. Also note that - this SetPathInfo is preferred to SetFileInfo based method in next +/* We can not use write of zero bytes trick to + set file size due to need for large file support. Also note that + this SetPathInfo is preferred to SetFileInfo based method in next routine which is only needed to work around a sharing violation bug in Samba which this routine can run into */ int CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon, const char *fileName, - __u64 size, int SetAllocation, + __u64 size, int SetAllocation, const struct nls_table *nls_codepage, int remap) { struct smb_com_transaction2_spi_req *pSMB = NULL; @@ -4517,22 +4621,22 @@ SetEOFRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; param_offset = offsetof(struct smb_com_transaction2_spi_req, - InformationLevel) - 4; + InformationLevel) - 4; offset = param_offset + params; - if(SetAllocation) { - if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) - pSMB->InformationLevel = - cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); - else - pSMB->InformationLevel = - cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); - } else /* Set File Size */ { + if (SetAllocation) { + if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) + pSMB->InformationLevel = + cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); + else + pSMB->InformationLevel = + cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); + } else /* Set File Size */ { if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) pSMB->InformationLevel = - cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); + cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); else pSMB->InformationLevel = - cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); + cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); } parm_data = @@ -4567,8 +4671,8 @@ SetEOFRetry: } int -CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, - __u16 fid, __u32 pid_of_opener, int SetAllocation) +CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, + __u16 fid, __u32 pid_of_opener, int SetAllocation) { struct smb_com_transaction2_sfi_req *pSMB = NULL; struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; @@ -4589,7 +4693,7 @@ CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); - + params = 6; pSMB->MaxSetupCount = 0; pSMB->Reserved = 0; @@ -4599,7 +4703,7 @@ CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; offset = param_offset + params; - data_offset = (char *) (&pSMB->hdr.Protocol) + offset; + data_offset = (char *) (&pSMB->hdr.Protocol) + offset; count = sizeof(struct file_end_of_file_info); pSMB->MaxParameterCount = cpu_to_le16(2); @@ -4614,25 +4718,25 @@ CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, pSMB->TotalParameterCount = pSMB->ParameterCount; pSMB->ParameterOffset = cpu_to_le16(param_offset); parm_data = - (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + - offset); + (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + + offset); pSMB->DataOffset = cpu_to_le16(offset); parm_data->FileSize = cpu_to_le64(size); pSMB->Fid = fid; - if(SetAllocation) { + if (SetAllocation) { if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); else pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); - } else /* Set File Size */ { + } else /* Set File Size */ { if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) pSMB->InformationLevel = - cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); + cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); else pSMB->InformationLevel = - cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); + cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); } pSMB->Reserved4 = 0; pSMB->hdr.smb_buf_length += byte_count; @@ -4648,21 +4752,21 @@ CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, if (pSMB) cifs_small_buf_release(pSMB); - /* Note: On -EAGAIN error only caller can retry on handle based calls + /* Note: On -EAGAIN error only caller can retry on handle based calls since file handle passed in no longer valid */ return rc; } -/* Some legacy servers such as NT4 require that the file times be set on +/* Some legacy servers such as NT4 require that the file times be set on an open handle, rather than by pathname - this is awkward due to potential access conflicts on the open, but it is unavoidable for these old servers since the only other choice is to go from 100 nanosecond DCE time and resort to the original setpathinfo level which takes the ancient DOS time format with 2 second granularity */ int -CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, const FILE_BASIC_INFO * data, - __u16 fid) +CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, + const FILE_BASIC_INFO *data, __u16 fid) { struct smb_com_transaction2_sfi_req *pSMB = NULL; struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; @@ -4684,7 +4788,7 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, const FILE_BASIC_I use an existing handle (rather than opening one on the fly) */ /* pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));*/ - + params = 6; pSMB->MaxSetupCount = 0; pSMB->Reserved = 0; @@ -4694,7 +4798,7 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, const FILE_BASIC_I param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; offset = param_offset + params; - data_offset = (char *) (&pSMB->hdr.Protocol) + offset; + data_offset = (char *) (&pSMB->hdr.Protocol) + offset; count = sizeof (FILE_BASIC_INFO); pSMB->MaxParameterCount = cpu_to_le16(2); @@ -4717,16 +4821,16 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, const FILE_BASIC_I pSMB->Reserved4 = 0; pSMB->hdr.smb_buf_length += byte_count; pSMB->ByteCount = cpu_to_le16(byte_count); - memcpy(data_offset,data,sizeof(FILE_BASIC_INFO)); + memcpy(data_offset, data, sizeof(FILE_BASIC_INFO)); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); if (rc) { - cFYI(1,("Send error in Set Time (SetFileInfo) = %d",rc)); + cFYI(1, ("Send error in Set Time (SetFileInfo) = %d", rc)); } cifs_small_buf_release(pSMB); - /* Note: On -EAGAIN error only caller can retry on handle based calls + /* Note: On -EAGAIN error only caller can retry on handle based calls since file handle passed in no longer valid */ return rc; @@ -4735,7 +4839,7 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, const FILE_BASIC_I int CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon, const char *fileName, - const FILE_BASIC_INFO * data, + const FILE_BASIC_INFO *data, const struct nls_table *nls_codepage, int remap) { TRANSACTION2_SPI_REQ *pSMB = NULL; @@ -4760,7 +4864,7 @@ SetTimesRetry: PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(fileName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, fileName, name_len); @@ -4776,7 +4880,7 @@ SetTimesRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; param_offset = offsetof(struct smb_com_transaction2_spi_req, - InformationLevel) - 4; + InformationLevel) - 4; offset = param_offset + params; data_offset = (char *) (&pSMB->hdr.Protocol) + offset; pSMB->ParameterOffset = cpu_to_le16(param_offset); @@ -4837,11 +4941,11 @@ SetAttrLgcyRetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - ConvertToUCS((__le16 *) pSMB->fileName, fileName, + ConvertToUCS((__le16 *) pSMB->fileName, fileName, PATH_MAX, nls_codepage); name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(fileName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->fileName, fileName, name_len); @@ -4867,8 +4971,8 @@ SetAttrLgcyRetry: int CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *tcon, - char *fileName, __u64 mode, __u64 uid, __u64 gid, - dev_t device, const struct nls_table *nls_codepage, + char *fileName, __u64 mode, __u64 uid, __u64 gid, + dev_t device, const struct nls_table *nls_codepage, int remap) { TRANSACTION2_SPI_REQ *pSMB = NULL; @@ -4888,7 +4992,7 @@ setPermsRetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, + cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; @@ -4908,7 +5012,7 @@ setPermsRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; param_offset = offsetof(struct smb_com_transaction2_spi_req, - InformationLevel) - 4; + InformationLevel) - 4; offset = param_offset + params; data_offset = (FILE_UNIX_BASIC_INFO *) ((char *) &pSMB->hdr.Protocol + @@ -4931,7 +5035,7 @@ setPermsRetry: older clients, but we should be precise - we use SetFileSize to set file size and do not want to truncate file size to zero accidently as happened on one Samba server beta by putting - zero instead of -1 here */ + zero instead of -1 here */ data_offset->EndOfFile = NO_CHANGE_64; data_offset->NumOfBytes = NO_CHANGE_64; data_offset->LastStatusChange = NO_CHANGE_64; @@ -4943,20 +5047,20 @@ setPermsRetry: data_offset->DevMajor = cpu_to_le64(MAJOR(device)); data_offset->DevMinor = cpu_to_le64(MINOR(device)); data_offset->Permissions = cpu_to_le64(mode); - - if(S_ISREG(mode)) + + if (S_ISREG(mode)) data_offset->Type = cpu_to_le32(UNIX_FILE); - else if(S_ISDIR(mode)) + else if (S_ISDIR(mode)) data_offset->Type = cpu_to_le32(UNIX_DIR); - else if(S_ISLNK(mode)) + else if (S_ISLNK(mode)) data_offset->Type = cpu_to_le32(UNIX_SYMLINK); - else if(S_ISCHR(mode)) + else if (S_ISCHR(mode)) data_offset->Type = cpu_to_le32(UNIX_CHARDEV); - else if(S_ISBLK(mode)) + else if (S_ISBLK(mode)) data_offset->Type = cpu_to_le32(UNIX_BLOCKDEV); - else if(S_ISFIFO(mode)) + else if (S_ISFIFO(mode)) data_offset->Type = cpu_to_le32(UNIX_FIFO); - else if(S_ISSOCK(mode)) + else if (S_ISSOCK(mode)) data_offset->Type = cpu_to_le32(UNIX_SOCKET); @@ -4974,20 +5078,20 @@ setPermsRetry: return rc; } -int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, +int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, const int notify_subdirs, const __u16 netfid, - __u32 filter, struct file * pfile, int multishot, + __u32 filter, struct file *pfile, int multishot, const struct nls_table *nls_codepage) { int rc = 0; - struct smb_com_transaction_change_notify_req * pSMB = NULL; - struct smb_com_ntransaction_change_notify_rsp * pSMBr = NULL; + struct smb_com_transaction_change_notify_req *pSMB = NULL; + struct smb_com_ntransaction_change_notify_rsp *pSMBr = NULL; struct dir_notify_req *dnotify_req; int bytes_returned; - cFYI(1, ("In CIFSSMBNotify for file handle %d",(int)netfid)); + cFYI(1, ("In CIFSSMBNotify for file handle %d", (int)netfid)); rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, - (void **) &pSMBr); + (void **) &pSMBr); if (rc) return rc; @@ -5008,7 +5112,7 @@ int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, pSMB->SetupCount = 4; /* single byte does not need le conversion */ pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_NOTIFY_CHANGE); pSMB->ParameterCount = pSMB->TotalParameterCount; - if(notify_subdirs) + if (notify_subdirs) pSMB->WatchTree = 1; /* one byte - no le conversion needed */ pSMB->Reserved2 = 0; pSMB->CompletionFilter = cpu_to_le32(filter); @@ -5021,11 +5125,11 @@ int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, cFYI(1, ("Error in Notify = %d", rc)); } else { /* Add file to outstanding requests */ - /* BB change to kmem cache alloc */ + /* BB change to kmem cache alloc */ dnotify_req = kmalloc( sizeof(struct dir_notify_req), GFP_KERNEL); - if(dnotify_req) { + if (dnotify_req) { dnotify_req->Pid = pSMB->hdr.Pid; dnotify_req->PidHigh = pSMB->hdr.PidHigh; dnotify_req->Mid = pSMB->hdr.Mid; @@ -5036,20 +5140,20 @@ int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, dnotify_req->filter = filter; dnotify_req->multishot = multishot; spin_lock(&GlobalMid_Lock); - list_add_tail(&dnotify_req->lhead, + list_add_tail(&dnotify_req->lhead, &GlobalDnotifyReqList); spin_unlock(&GlobalMid_Lock); - } else + } else rc = -ENOMEM; } cifs_buf_release(pSMB); - return rc; + return rc; } #ifdef CONFIG_CIFS_XATTR ssize_t CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon, const unsigned char *searchName, - char * EAData, size_t buf_size, + char *EAData, size_t buf_size, const struct nls_table *nls_codepage, int remap) { /* BB assumes one setup word */ @@ -5058,8 +5162,8 @@ CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon, int rc = 0; int bytes_returned; int name_len; - struct fea * temp_fea; - char * temp_ptr; + struct fea *temp_fea; + char *temp_ptr; __u16 params, byte_count; cFYI(1, ("In Query All EAs path %s", searchName)); @@ -5071,7 +5175,7 @@ QAllEAsRetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, + cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; @@ -5081,7 +5185,7 @@ QAllEAsRetry: strncpy(pSMB->FileName, searchName, name_len); } - params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; + params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; pSMB->TotalDataCount = 0; pSMB->MaxParameterCount = cpu_to_le16(2); pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ @@ -5091,7 +5195,7 @@ QAllEAsRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; pSMB->ParameterOffset = cpu_to_le16(offsetof( - struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); + struct smb_com_transaction2_qpi_req, InformationLevel) - 4); pSMB->DataCount = 0; pSMB->DataOffset = 0; pSMB->SetupCount = 1; @@ -5115,7 +5219,7 @@ QAllEAsRetry: /* BB also check enough total bytes returned */ /* BB we need to improve the validity checking of these trans2 responses */ - if (rc || (pSMBr->ByteCount < 4)) + if (rc || (pSMBr->ByteCount < 4)) rc = -EIO; /* bad smb */ /* else if (pFindData){ memcpy((char *) pFindData, @@ -5128,39 +5232,40 @@ QAllEAsRetry: /* check that each element of each entry does not go beyond end of list */ __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); - struct fealist * ea_response_data; + struct fealist *ea_response_data; rc = 0; /* validate_trans2_offsets() */ - /* BB to check if(start of smb + data_offset > &bcc+ bcc)*/ + /* BB check if start of smb + data_offset > &bcc+ bcc */ ea_response_data = (struct fealist *) (((char *) &pSMBr->hdr.Protocol) + data_offset); name_len = le32_to_cpu(ea_response_data->list_len); - cFYI(1,("ea length %d", name_len)); - if(name_len <= 8) { + cFYI(1, ("ea length %d", name_len)); + if (name_len <= 8) { /* returned EA size zeroed at top of function */ - cFYI(1,("empty EA list returned from server")); + cFYI(1, ("empty EA list returned from server")); } else { /* account for ea list len */ name_len -= 4; temp_fea = ea_response_data->list; temp_ptr = (char *)temp_fea; - while(name_len > 0) { + while (name_len > 0) { __u16 value_len; name_len -= 4; temp_ptr += 4; rc += temp_fea->name_len; /* account for prefix user. and trailing null */ - rc = rc + 5 + 1; - if(rc<(int)buf_size) { - memcpy(EAData,"user.",5); - EAData+=5; - memcpy(EAData,temp_ptr,temp_fea->name_len); - EAData+=temp_fea->name_len; + rc = rc + 5 + 1; + if (rc < (int)buf_size) { + memcpy(EAData, "user.", 5); + EAData += 5; + memcpy(EAData, temp_ptr, + temp_fea->name_len); + EAData += temp_fea->name_len; /* null terminate name */ *EAData = 0; EAData = EAData + 1; - } else if(buf_size == 0) { + } else if (buf_size == 0) { /* skip copy - calc size only */ } else { /* stop before overrun buffer */ @@ -5172,11 +5277,15 @@ QAllEAsRetry: /* account for trailing null */ name_len--; temp_ptr++; - value_len = le16_to_cpu(temp_fea->value_len); + value_len = + le16_to_cpu(temp_fea->value_len); name_len -= value_len; temp_ptr += value_len; - /* BB check that temp_ptr is still within smb BB*/ - /* no trailing null to account for in value len */ + /* BB check that temp_ptr is still + within the SMB BB*/ + + /* no trailing null to account for + in value len */ /* go on to next EA */ temp_fea = (struct fea *)temp_ptr; } @@ -5191,9 +5300,9 @@ QAllEAsRetry: return (ssize_t)rc; } -ssize_t CIFSSMBQueryEA(const int xid,struct cifsTconInfo * tcon, - const unsigned char * searchName,const unsigned char * ea_name, - unsigned char * ea_value, size_t buf_size, +ssize_t CIFSSMBQueryEA(const int xid, struct cifsTconInfo *tcon, + const unsigned char *searchName, const unsigned char *ea_name, + unsigned char *ea_value, size_t buf_size, const struct nls_table *nls_codepage, int remap) { TRANSACTION2_QPI_REQ *pSMB = NULL; @@ -5201,8 +5310,8 @@ ssize_t CIFSSMBQueryEA(const int xid,struct cifsTconInfo * tcon, int rc = 0; int bytes_returned; int name_len; - struct fea * temp_fea; - char * temp_ptr; + struct fea *temp_fea; + char *temp_ptr; __u16 params, byte_count; cFYI(1, ("In Query EA path %s", searchName)); @@ -5214,7 +5323,7 @@ QEARetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, + cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; @@ -5224,7 +5333,7 @@ QEARetry: strncpy(pSMB->FileName, searchName, name_len); } - params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; + params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; pSMB->TotalDataCount = 0; pSMB->MaxParameterCount = cpu_to_le16(2); pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ @@ -5234,7 +5343,7 @@ QEARetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; pSMB->ParameterOffset = cpu_to_le16(offsetof( - struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); + struct smb_com_transaction2_qpi_req, InformationLevel) - 4); pSMB->DataCount = 0; pSMB->DataOffset = 0; pSMB->SetupCount = 1; @@ -5258,7 +5367,7 @@ QEARetry: /* BB also check enough total bytes returned */ /* BB we need to improve the validity checking of these trans2 responses */ - if (rc || (pSMBr->ByteCount < 4)) + if (rc || (pSMBr->ByteCount < 4)) rc = -EIO; /* bad smb */ /* else if (pFindData){ memcpy((char *) pFindData, @@ -5271,18 +5380,18 @@ QEARetry: /* check that each element of each entry does not go beyond end of list */ __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); - struct fealist * ea_response_data; + struct fealist *ea_response_data; rc = -ENODATA; /* validate_trans2_offsets() */ - /* BB to check if(start of smb + data_offset > &bcc+ bcc)*/ + /* BB check if start of smb + data_offset > &bcc+ bcc*/ ea_response_data = (struct fealist *) (((char *) &pSMBr->hdr.Protocol) + data_offset); name_len = le32_to_cpu(ea_response_data->list_len); - cFYI(1,("ea length %d", name_len)); - if(name_len <= 8) { + cFYI(1, ("ea length %d", name_len)); + if (name_len <= 8) { /* returned EA size zeroed at top of function */ - cFYI(1,("empty EA list returned from server")); + cFYI(1, ("empty EA list returned from server")); } else { /* account for ea list len */ name_len -= 4; @@ -5290,28 +5399,30 @@ QEARetry: temp_ptr = (char *)temp_fea; /* loop through checking if we have a matching name and then return the associated value */ - while(name_len > 0) { + while (name_len > 0) { __u16 value_len; name_len -= 4; temp_ptr += 4; - value_len = le16_to_cpu(temp_fea->value_len); - /* BB validate that value_len falls within SMB, - even though maximum for name_len is 255 */ - if(memcmp(temp_fea->name,ea_name, + value_len = + le16_to_cpu(temp_fea->value_len); + /* BB validate that value_len falls within SMB, + even though maximum for name_len is 255 */ + if (memcmp(temp_fea->name, ea_name, temp_fea->name_len) == 0) { /* found a match */ rc = value_len; /* account for prefix user. and trailing null */ - if(rc<=(int)buf_size) { + if (rc <= (int)buf_size) { memcpy(ea_value, temp_fea->name+temp_fea->name_len+1, rc); - /* ea values, unlike ea names, - are not null terminated */ - } else if(buf_size == 0) { + /* ea values, unlike ea + names, are not null + terminated */ + } else if (buf_size == 0) { /* skip copy - calc size only */ } else { - /* stop before overrun buffer */ + /* stop before overrun buffer */ rc = -ERANGE; } break; @@ -5323,11 +5434,11 @@ QEARetry: temp_ptr++; name_len -= value_len; temp_ptr += value_len; - /* no trailing null to account for in value len */ - /* go on to next EA */ + /* No trailing null to account for in + value_len. Go on to next EA */ temp_fea = (struct fea *)temp_ptr; } - } + } } } if (pSMB) @@ -5340,9 +5451,9 @@ QEARetry: int CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon, const char *fileName, - const char * ea_name, const void * ea_value, - const __u16 ea_value_len, const struct nls_table *nls_codepage, - int remap) + const char *ea_name, const void *ea_value, + const __u16 ea_value_len, const struct nls_table *nls_codepage, + int remap) { struct smb_com_transaction2_spi_req *pSMB = NULL; struct smb_com_transaction2_spi_rsp *pSMBr = NULL; @@ -5361,11 +5472,11 @@ SetEARetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, + cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(fileName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, fileName, name_len); @@ -5376,10 +5487,10 @@ SetEARetry: /* done calculating parms using name_len of file name, now use name_len to calculate length of ea name we are going to create in the inode xattrs */ - if(ea_name == NULL) + if (ea_name == NULL) name_len = 0; else - name_len = strnlen(ea_name,255); + name_len = strnlen(ea_name, 255); count = sizeof(*parm_data) + ea_value_len + name_len + 1; pSMB->MaxParameterCount = cpu_to_le16(2); @@ -5390,7 +5501,7 @@ SetEARetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; param_offset = offsetof(struct smb_com_transaction2_spi_req, - InformationLevel) - 4; + InformationLevel) - 4; offset = param_offset + params; pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_EA); @@ -5410,17 +5521,19 @@ SetEARetry: /* we checked above that name len is less than 255 */ parm_data->list[0].name_len = (__u8)name_len; /* EA names are always ASCII */ - if(ea_name) - strncpy(parm_data->list[0].name,ea_name,name_len); + if (ea_name) + strncpy(parm_data->list[0].name, ea_name, name_len); parm_data->list[0].name[name_len] = 0; parm_data->list[0].value_len = cpu_to_le16(ea_value_len); /* caller ensures that ea_value_len is less than 64K but we need to ensure that it fits within the smb */ - /*BB add length check that it would fit in negotiated SMB buffer size BB */ - /* if(ea_value_len > buffer_size - 512 (enough for header)) */ - if(ea_value_len) - memcpy(parm_data->list[0].name+name_len+1,ea_value,ea_value_len); + /*BB add length check to see if it would fit in + negotiated SMB buffer size BB */ + /* if (ea_value_len > buffer_size - 512 (enough for header)) */ + if (ea_value_len) + memcpy(parm_data->list[0].name+name_len+1, + ea_value, ea_value_len); pSMB->TotalDataCount = pSMB->DataCount; pSMB->ParameterCount = cpu_to_le16(params); diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 0a1b8bd1dfc..4af3588c1a9 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1,7 +1,7 @@ /* * fs/cifs/connect.c * - * Copyright (C) International Business Machines Corp., 2002,2006 + * Copyright (C) International Business Machines Corp., 2002,2007 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify @@ -16,7 +16,7 @@ * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/fs.h> #include <linux/net.h> @@ -85,6 +85,7 @@ struct smb_vol { unsigned direct_io:1; unsigned remap:1; /* set to remap seven reserved chars in filenames */ unsigned posix_paths:1; /* unset to not ask for posix pathnames. */ + unsigned no_linux_ext:1; unsigned sfu_emul:1; unsigned nullauth:1; /* attempt to authenticate with null user */ unsigned nocase; /* request case insensitive filenames */ @@ -93,20 +94,20 @@ struct smb_vol { unsigned int wsize; unsigned int sockopt; unsigned short int port; - char * prepath; + char *prepath; }; -static int ipv4_connect(struct sockaddr_in *psin_server, +static int ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket, - char * netb_name, - char * server_netb_name); -static int ipv6_connect(struct sockaddr_in6 *psin_server, + char *netb_name, + char *server_netb_name); +static int ipv6_connect(struct sockaddr_in6 *psin_server, struct socket **csocket); - /* + /* * cifs tcp session reconnection - * + * * mark tcp session as reconnecting so temporarily locked * mark all smb sessions as reconnecting for tcp session * reconnect tcp session @@ -120,11 +121,11 @@ cifs_reconnect(struct TCP_Server_Info *server) struct list_head *tmp; struct cifsSesInfo *ses; struct cifsTconInfo *tcon; - struct mid_q_entry * mid_entry; - + struct mid_q_entry *mid_entry; + spin_lock(&GlobalMid_Lock); - if( kthread_should_stop() ) { - /* the demux thread will exit normally + if ( kthread_should_stop() ) { + /* the demux thread will exit normally next time through the loop */ spin_unlock(&GlobalMid_Lock); return rc; @@ -150,18 +151,19 @@ cifs_reconnect(struct TCP_Server_Info *server) } list_for_each(tmp, &GlobalTreeConnectionList) { tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList); - if((tcon) && (tcon->ses) && (tcon->ses->server == server)) { + if ((tcon) && (tcon->ses) && (tcon->ses->server == server)) { tcon->tidStatus = CifsNeedReconnect; } } read_unlock(&GlobalSMBSeslock); /* do not want to be sending data on a socket we are freeing */ - down(&server->tcpSem); - if(server->ssocket) { - cFYI(1,("State: 0x%x Flags: 0x%lx", server->ssocket->state, + down(&server->tcpSem); + if (server->ssocket) { + cFYI(1, ("State: 0x%x Flags: 0x%lx", server->ssocket->state, server->ssocket->flags)); - server->ssocket->ops->shutdown(server->ssocket,SEND_SHUTDOWN); - cFYI(1,("Post shutdown state: 0x%x Flags: 0x%lx", server->ssocket->state, + server->ssocket->ops->shutdown(server->ssocket, SEND_SHUTDOWN); + cFYI(1, ("Post shutdown state: 0x%x Flags: 0x%lx", + server->ssocket->state, server->ssocket->flags)); sock_release(server->ssocket); server->ssocket = NULL; @@ -172,8 +174,8 @@ cifs_reconnect(struct TCP_Server_Info *server) mid_entry = list_entry(tmp, struct mid_q_entry, qhead); - if(mid_entry) { - if(mid_entry->midState == MID_REQUEST_SUBMITTED) { + if (mid_entry) { + if (mid_entry->midState == MID_REQUEST_SUBMITTED) { /* Mark other intransit requests as needing retry so we do not immediately mark the session bad again (ie after we reconnect @@ -183,29 +185,29 @@ cifs_reconnect(struct TCP_Server_Info *server) } } spin_unlock(&GlobalMid_Lock); - up(&server->tcpSem); + up(&server->tcpSem); - while ( (!kthread_should_stop()) && (server->tcpStatus != CifsGood)) - { + while ( (!kthread_should_stop()) && (server->tcpStatus != CifsGood)) { try_to_freeze(); - if(server->protocolType == IPV6) { - rc = ipv6_connect(&server->addr.sockAddr6,&server->ssocket); + if (server->protocolType == IPV6) { + rc = ipv6_connect(&server->addr.sockAddr6, + &server->ssocket); } else { - rc = ipv4_connect(&server->addr.sockAddr, + rc = ipv4_connect(&server->addr.sockAddr, &server->ssocket, server->workstation_RFC1001_name, server->server_RFC1001_name); } - if(rc) { - cFYI(1,("reconnect error %d",rc)); + if (rc) { + cFYI(1, ("reconnect error %d", rc)); msleep(3000); } else { atomic_inc(&tcpSesReconnectCount); spin_lock(&GlobalMid_Lock); - if( !kthread_should_stop() ) + if ( !kthread_should_stop() ) server->tcpStatus = CifsGood; server->sequence_number = 0; - spin_unlock(&GlobalMid_Lock); + spin_unlock(&GlobalMid_Lock); /* atomic_set(&server->inFlight,0);*/ wake_up(&server->response_q); } @@ -213,27 +215,27 @@ cifs_reconnect(struct TCP_Server_Info *server) return rc; } -/* +/* return codes: 0 not a transact2, or all data present >0 transact2 with that much data missing -EINVAL = invalid transact2 */ -static int check2ndT2(struct smb_hdr * pSMB, unsigned int maxBufSize) +static int check2ndT2(struct smb_hdr *pSMB, unsigned int maxBufSize) { - struct smb_t2_rsp * pSMBt; - int total_data_size; + struct smb_t2_rsp *pSMBt; + int total_data_size; int data_in_this_rsp; int remaining; - if(pSMB->Command != SMB_COM_TRANSACTION2) + if (pSMB->Command != SMB_COM_TRANSACTION2) return 0; - /* check for plausible wct, bcc and t2 data and parm sizes */ - /* check for parm and data offset going beyond end of smb */ - if(pSMB->WordCount != 10) { /* coalesce_t2 depends on this */ - cFYI(1,("invalid transact2 word count")); + /* check for plausible wct, bcc and t2 data and parm sizes */ + /* check for parm and data offset going beyond end of smb */ + if (pSMB->WordCount != 10) { /* coalesce_t2 depends on this */ + cFYI(1, ("invalid transact2 word count")); return -EINVAL; } @@ -244,25 +246,25 @@ static int check2ndT2(struct smb_hdr * pSMB, unsigned int maxBufSize) remaining = total_data_size - data_in_this_rsp; - if(remaining == 0) + if (remaining == 0) return 0; - else if(remaining < 0) { - cFYI(1,("total data %d smaller than data in frame %d", + else if (remaining < 0) { + cFYI(1, ("total data %d smaller than data in frame %d", total_data_size, data_in_this_rsp)); return -EINVAL; } else { - cFYI(1,("missing %d bytes from transact2, check next response", + cFYI(1, ("missing %d bytes from transact2, check next response", remaining)); - if(total_data_size > maxBufSize) { - cERROR(1,("TotalDataSize %d is over maximum buffer %d", - total_data_size,maxBufSize)); - return -EINVAL; + if (total_data_size > maxBufSize) { + cERROR(1, ("TotalDataSize %d is over maximum buffer %d", + total_data_size, maxBufSize)); + return -EINVAL; } return remaining; } } -static int coalesce_t2(struct smb_hdr * psecond, struct smb_hdr *pTargetSMB) +static int coalesce_t2(struct smb_hdr *psecond, struct smb_hdr *pTargetSMB) { struct smb_t2_rsp *pSMB2 = (struct smb_t2_rsp *)psecond; struct smb_t2_rsp *pSMBt = (struct smb_t2_rsp *)pTargetSMB; @@ -270,43 +272,43 @@ static int coalesce_t2(struct smb_hdr * psecond, struct smb_hdr *pTargetSMB) int total_in_buf; int remaining; int total_in_buf2; - char * data_area_of_target; - char * data_area_of_buf2; + char *data_area_of_target; + char *data_area_of_buf2; __u16 byte_count; total_data_size = le16_to_cpu(pSMBt->t2_rsp.TotalDataCount); - if(total_data_size != le16_to_cpu(pSMB2->t2_rsp.TotalDataCount)) { - cFYI(1,("total data sizes of primary and secondary t2 differ")); + if (total_data_size != le16_to_cpu(pSMB2->t2_rsp.TotalDataCount)) { + cFYI(1, ("total data size of primary and secondary t2 differ")); } total_in_buf = le16_to_cpu(pSMBt->t2_rsp.DataCount); remaining = total_data_size - total_in_buf; - - if(remaining < 0) + + if (remaining < 0) return -EINVAL; - if(remaining == 0) /* nothing to do, ignore */ + if (remaining == 0) /* nothing to do, ignore */ return 0; - + total_in_buf2 = le16_to_cpu(pSMB2->t2_rsp.DataCount); - if(remaining < total_in_buf2) { - cFYI(1,("transact2 2nd response contains too much data")); + if (remaining < total_in_buf2) { + cFYI(1, ("transact2 2nd response contains too much data")); } /* find end of first SMB data area */ - data_area_of_target = (char *)&pSMBt->hdr.Protocol + + data_area_of_target = (char *)&pSMBt->hdr.Protocol + le16_to_cpu(pSMBt->t2_rsp.DataOffset); /* validate target area */ data_area_of_buf2 = (char *) &pSMB2->hdr.Protocol + - le16_to_cpu(pSMB2->t2_rsp.DataOffset); + le16_to_cpu(pSMB2->t2_rsp.DataOffset); data_area_of_target += total_in_buf; /* copy second buffer into end of first buffer */ - memcpy(data_area_of_target,data_area_of_buf2,total_in_buf2); + memcpy(data_area_of_target, data_area_of_buf2, total_in_buf2); total_in_buf += total_in_buf2; pSMBt->t2_rsp.DataCount = cpu_to_le16(total_in_buf); byte_count = le16_to_cpu(BCC_LE(pTargetSMB)); @@ -317,11 +319,11 @@ static int coalesce_t2(struct smb_hdr * psecond, struct smb_hdr *pTargetSMB) byte_count += total_in_buf2; /* BB also add check that we are not beyond maximum buffer size */ - + pTargetSMB->smb_buf_length = byte_count; - if(remaining == total_in_buf2) { - cFYI(1,("found the last secondary response")); + if (remaining == total_in_buf2) { + cFYI(1, ("found the last secondary response")); return 0; /* we are done */ } else /* more responses to go */ return 1; @@ -348,16 +350,15 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) int isMultiRsp; int reconnect; - allow_signal(SIGKILL); current->flags |= PF_MEMALLOC; server->tsk = current; /* save process info to wake at shutdown */ cFYI(1, ("Demultiplex PID: %d", current->pid)); - write_lock(&GlobalSMBSeslock); + write_lock(&GlobalSMBSeslock); atomic_inc(&tcpSesAllocCount); length = tcpSesAllocCount.counter; write_unlock(&GlobalSMBSeslock); complete(&cifsd_complete); - if(length > 1) { + if (length > 1) { mempool_resize(cifs_req_poolp, length + cifs_min_rcv, GFP_KERNEL); @@ -426,10 +427,10 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) break; } if (!try_to_freeze() && (length == -EINTR)) { - cFYI(1,("cifsd thread killed")); + cFYI(1, ("cifsd thread killed")); break; } - cFYI(1,("Reconnect after unexpected peek error %d", + cFYI(1, ("Reconnect after unexpected peek error %d", length)); cifs_reconnect(server); csocket = server->ssocket; @@ -453,26 +454,26 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) with the most common, zero, as regular data */ temp = *((char *) smb_buffer); - /* Note that FC 1001 length is big endian on the wire, + /* Note that FC 1001 length is big endian on the wire, but we convert it here so it is always manipulated as host byte order */ pdu_length = ntohl(smb_buffer->smb_buf_length); smb_buffer->smb_buf_length = pdu_length; - cFYI(1,("rfc1002 length 0x%x)", pdu_length+4)); + cFYI(1, ("rfc1002 length 0x%x", pdu_length+4)); if (temp == (char) RFC1002_SESSION_KEEP_ALIVE) { - continue; + continue; } else if (temp == (char)RFC1002_POSITIVE_SESSION_RESPONSE) { - cFYI(1,("Good RFC 1002 session rsp")); + cFYI(1, ("Good RFC 1002 session rsp")); continue; } else if (temp == (char)RFC1002_NEGATIVE_SESSION_RESPONSE) { - /* we get this from Windows 98 instead of + /* we get this from Windows 98 instead of an error on SMB negprot response */ - cFYI(1,("Negative RFC1002 Session Response Error 0x%x)", + cFYI(1, ("Negative RFC1002 Session Response Error 0x%x)", pdu_length)); - if(server->tcpStatus == CifsNew) { - /* if nack on negprot (rather than + if (server->tcpStatus == CifsNew) { + /* if nack on negprot (rather than ret of smb negprot error) reconnecting not going to help, ret error to mount */ break; @@ -482,10 +483,10 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) msleep(1000); /* always try 445 first on reconnect since we get NACK on some if we ever - connected to port 139 (the NACK is + connected to port 139 (the NACK is since we do not begin with RFC1001 session initialize frame) */ - server->addr.sockAddr.sin_port = + server->addr.sockAddr.sin_port = htons(CIFS_PORT); cifs_reconnect(server); csocket = server->ssocket; @@ -493,7 +494,7 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) continue; } } else if (temp != (char) 0) { - cERROR(1,("Unknown RFC 1002 frame")); + cERROR(1, ("Unknown RFC 1002 frame")); cifs_dump_mem(" Received Data: ", (char *)smb_buffer, length); cifs_reconnect(server); @@ -502,7 +503,7 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) } /* else we have an SMB response */ - if((pdu_length > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4) || + if ((pdu_length > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4) || (pdu_length < sizeof (struct smb_hdr) - 1 - 4)) { cERROR(1, ("Invalid size SMB length %d pdu_length %d", length, pdu_length+4)); @@ -510,12 +511,12 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) csocket = server->ssocket; wake_up(&server->response_q); continue; - } + } /* else length ok */ reconnect = 0; - if(pdu_length > MAX_CIFS_SMALL_BUFFER_SIZE - 4) { + if (pdu_length > MAX_CIFS_SMALL_BUFFER_SIZE - 4) { isLargeBuf = TRUE; memcpy(bigbuf, smallbuf, 4); smb_buffer = bigbuf; @@ -523,11 +524,11 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) length = 0; iov.iov_base = 4 + (char *)smb_buffer; iov.iov_len = pdu_length; - for (total_read = 0; total_read < pdu_length; + for (total_read = 0; total_read < pdu_length; total_read += length) { length = kernel_recvmsg(csocket, &smb_msg, &iov, 1, pdu_length - total_read, 0); - if( kthread_should_stop() || + if ( kthread_should_stop() || (length == -EINTR)) { /* then will exit */ reconnect = 2; @@ -535,19 +536,19 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) } else if (server->tcpStatus == CifsNeedReconnect) { cifs_reconnect(server); csocket = server->ssocket; - /* Reconnect wakes up rspns q */ + /* Reconnect wakes up rspns q */ /* Now we will reread sock */ reconnect = 1; break; - } else if ((length == -ERESTARTSYS) || + } else if ((length == -ERESTARTSYS) || (length == -EAGAIN)) { msleep(1); /* minimum sleep to prevent looping, - allowing socket to clear and app + allowing socket to clear and app threads to set tcpStatus CifsNeedReconnect if server hung*/ continue; } else if (length <= 0) { - cERROR(1,("Received no data, expecting %d", + cERROR(1, ("Received no data, expecting %d", pdu_length - total_read)); cifs_reconnect(server); csocket = server->ssocket; @@ -555,13 +556,13 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) break; } } - if(reconnect == 2) + if (reconnect == 2) break; - else if(reconnect == 1) + else if (reconnect == 1) continue; length += 4; /* account for rfc1002 hdr */ - + dump_smb(smb_buffer, length); if (checkSMB(smb_buffer, smb_buffer->Mid, total_read+4)) { @@ -575,28 +576,28 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) list_for_each(tmp, &server->pending_mid_q) { mid_entry = list_entry(tmp, struct mid_q_entry, qhead); - if ((mid_entry->mid == smb_buffer->Mid) && + if ((mid_entry->mid == smb_buffer->Mid) && (mid_entry->midState == MID_REQUEST_SUBMITTED) && (mid_entry->command == smb_buffer->Command)) { - if(check2ndT2(smb_buffer,server->maxBuf) > 0) { + if (check2ndT2(smb_buffer,server->maxBuf) > 0) { /* We have a multipart transact2 resp */ isMultiRsp = TRUE; - if(mid_entry->resp_buf) { + if (mid_entry->resp_buf) { /* merge response - fix up 1st*/ - if(coalesce_t2(smb_buffer, + if (coalesce_t2(smb_buffer, mid_entry->resp_buf)) { mid_entry->multiRsp = 1; break; } else { /* all parts received */ mid_entry->multiEnd = 1; - goto multi_t2_fnd; + goto multi_t2_fnd; } } else { - if(!isLargeBuf) { + if (!isLargeBuf) { cERROR(1,("1st trans2 resp needs bigbuf")); /* BB maybe we can fix this up, switch - to already allocated large buffer? */ + to already allocated large buffer? */ } else { /* Have first buffer */ mid_entry->resp_buf = @@ -606,9 +607,9 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) } } break; - } + } mid_entry->resp_buf = smb_buffer; - if(isLargeBuf) + if (isLargeBuf) mid_entry->largeBuf = 1; else mid_entry->largeBuf = 0; @@ -628,24 +629,25 @@ multi_t2_fnd: spin_unlock(&GlobalMid_Lock); if (task_to_wake) { /* Was previous buf put in mpx struct for multi-rsp? */ - if(!isMultiRsp) { + if (!isMultiRsp) { /* smb buffer will be freed by user thread */ - if(isLargeBuf) { + if (isLargeBuf) { bigbuf = NULL; } else smallbuf = NULL; } wake_up_process(task_to_wake); } else if ((is_valid_oplock_break(smb_buffer, server) == FALSE) - && (isMultiRsp == FALSE)) { - cERROR(1, ("No task to wake, unknown frame rcvd! NumMids %d", midCount.counter)); - cifs_dump_mem("Received Data is: ",(char *)smb_buffer, + && (isMultiRsp == FALSE)) { + cERROR(1, ("No task to wake, unknown frame received! " + "NumMids %d", midCount.counter)); + cifs_dump_mem("Received Data is: ", (char *)smb_buffer, sizeof(struct smb_hdr)); #ifdef CONFIG_CIFS_DEBUG2 cifs_dump_detail(smb_buffer); cifs_dump_mids(server); #endif /* CIFS_DEBUG2 */ - + } } /* end while !EXITING */ @@ -655,12 +657,12 @@ multi_t2_fnd: /* check if we have blocked requests that need to free */ /* Note that cifs_max_pending is normally 50, but can be set at module install time to as little as two */ - if(atomic_read(&server->inFlight) >= cifs_max_pending) + if (atomic_read(&server->inFlight) >= cifs_max_pending) atomic_set(&server->inFlight, cifs_max_pending - 1); /* We do not want to set the max_pending too low or we could end up with the counter going negative */ spin_unlock(&GlobalMid_Lock); - /* Although there should not be any requests blocked on + /* Although there should not be any requests blocked on this queue it can not hurt to be paranoid and try to wake up requests that may haven been blocked when more than 50 at time were on the wire to the same server - they now will see the session is in exit state @@ -668,8 +670,8 @@ multi_t2_fnd: wake_up_all(&server->request_q); /* give those requests time to exit */ msleep(125); - - if(server->ssocket) { + + if (server->ssocket) { sock_release(csocket); server->ssocket = NULL; } @@ -709,10 +711,10 @@ multi_t2_fnd: list_for_each(tmp, &server->pending_mid_q) { mid_entry = list_entry(tmp, struct mid_q_entry, qhead); if (mid_entry->midState == MID_REQUEST_SUBMITTED) { - cFYI(1, - ("Clearing Mid 0x%x - waking up ",mid_entry->mid)); + cFYI(1, ("Clearing Mid 0x%x - waking up ", + mid_entry->mid)); task_to_wake = mid_entry->tsk; - if(task_to_wake) { + if (task_to_wake) { wake_up_process(task_to_wake); } } @@ -724,7 +726,7 @@ multi_t2_fnd: } if (!list_empty(&server->pending_mid_q)) { - /* mpx threads have not exited yet give them + /* mpx threads have not exited yet give them at least the smb send timeout time for long ops */ /* due to delays on oplock break requests, we need to wait at least 45 seconds before giving up @@ -742,7 +744,7 @@ multi_t2_fnd: /* last chance to mark ses pointers invalid if there are any pointing to this (e.g - if a crazy root user tried to kill cifsd + if a crazy root user tried to kill cifsd kernel thread explicitly this might happen) */ list_for_each(tmp, &GlobalSMBSessionList) { ses = list_entry(tmp, struct cifsSesInfo, @@ -754,17 +756,18 @@ multi_t2_fnd: write_unlock(&GlobalSMBSeslock); kfree(server); - if(length > 0) { + if (length > 0) { mempool_resize(cifs_req_poolp, length + cifs_min_rcv, GFP_KERNEL); } - + return 0; } static int -cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) +cifs_parse_mount_options(char *options, const char *devname, + struct smb_vol *vol) { char *value; char *data; @@ -772,15 +775,15 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) char separator[2]; separator[0] = ','; - separator[1] = 0; + separator[1] = 0; if (Local_System_Name[0] != 0) - memcpy(vol->source_rfc1001_name, Local_System_Name,15); + memcpy(vol->source_rfc1001_name, Local_System_Name, 15); else { char *nodename = utsname()->nodename; - int n = strnlen(nodename,15); - memset(vol->source_rfc1001_name,0x20,15); - for(i=0 ; i < n ; i++) { + int n = strnlen(nodename, 15); + memset(vol->source_rfc1001_name, 0x20, 15); + for (i = 0; i < n; i++) { /* does not have to be perfect mapping since field is informational, only used for servers that do not support port 445 and it can be overridden at mount time */ @@ -805,31 +808,32 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) if (!options) return 1; - if(strncmp(options,"sep=",4) == 0) { - if(options[4] != 0) { + if (strncmp(options, "sep=", 4) == 0) { + if (options[4] != 0) { separator[0] = options[4]; options += 5; } else { - cFYI(1,("Null separator not allowed")); + cFYI(1, ("Null separator not allowed")); } } - + while ((data = strsep(&options, separator)) != NULL) { if (!*data) continue; if ((value = strchr(data, '=')) != NULL) *value++ = '\0'; - if (strnicmp(data, "user_xattr",10) == 0) {/*parse before user*/ + /* Have to parse this before we parse for "user" */ + if (strnicmp(data, "user_xattr", 10) == 0) { vol->no_xattr = 0; - } else if (strnicmp(data, "nouser_xattr",12) == 0) { + } else if (strnicmp(data, "nouser_xattr", 12) == 0) { vol->no_xattr = 1; } else if (strnicmp(data, "user", 4) == 0) { if (!value) { printk(KERN_WARNING "CIFS: invalid or missing username\n"); return 1; /* needs_arg; */ - } else if(!*value) { + } else if (!*value) { /* null user, ie anonymous, authentication */ vol->nullauth = 1; } @@ -843,12 +847,12 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) if (!value) { vol->password = NULL; continue; - } else if(value[0] == 0) { + } else if (value[0] == 0) { /* check if string begins with double comma since that would mean the password really does start with a comma, and would not indicate an empty string */ - if(value[1] != separator[0]) { + if (value[1] != separator[0]) { vol->password = NULL; continue; } @@ -857,7 +861,7 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) /* removed password length check, NTLM passwords can be arbitrarily long */ - /* if comma in password, the string will be + /* if comma in password, the string will be prematurely null terminated. Commas in password are specified across the cifs mount interface by a double comma ie ,, and a comma used as in other cases ie ',' @@ -867,18 +871,18 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) /* NB: password legally can have multiple commas and the only illegal character in a password is null */ - if ((value[temp_len] == 0) && + if ((value[temp_len] == 0) && (value[temp_len+1] == separator[0])) { /* reinsert comma */ value[temp_len] = separator[0]; - temp_len+=2; /* move after the second comma */ - while(value[temp_len] != 0) { + temp_len += 2; /* move after second comma */ + while (value[temp_len] != 0) { if (value[temp_len] == separator[0]) { - if (value[temp_len+1] == + if (value[temp_len+1] == separator[0]) { /* skip second comma */ temp_len++; - } else { + } else { /* single comma indicating start of next parm */ break; @@ -886,24 +890,25 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) } temp_len++; } - if(value[temp_len] == 0) { + if (value[temp_len] == 0) { options = NULL; } else { value[temp_len] = 0; /* point option to start of next parm */ options = value + temp_len + 1; } - /* go from value to value + temp_len condensing + /* go from value to value + temp_len condensing double commas to singles. Note that this ends up allocating a few bytes too many, which is ok */ vol->password = kzalloc(temp_len, GFP_KERNEL); - if(vol->password == NULL) { - printk("CIFS: no memory for pass\n"); + if (vol->password == NULL) { + printk(KERN_WARNING "CIFS: no memory " + "for password\n"); return 1; } - for(i=0,j=0;i<temp_len;i++,j++) { + for (i = 0, j = 0; i < temp_len; i++, j++) { vol->password[j] = value[i]; - if(value[i] == separator[0] + if (value[i] == separator[0] && value[i+1] == separator[0]) { /* skip second comma */ i++; @@ -912,8 +917,9 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) vol->password[j] = 0; } else { vol->password = kzalloc(temp_len+1, GFP_KERNEL); - if(vol->password == NULL) { - printk("CIFS: no memory for pass\n"); + if (vol->password == NULL) { + printk(KERN_WARNING "CIFS: no memory " + "for password\n"); return 1; } strcpy(vol->password, value); @@ -924,20 +930,21 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) } else if (strnlen(value, 35) < 35) { vol->UNCip = value; } else { - printk(KERN_WARNING "CIFS: ip address too long\n"); + printk(KERN_WARNING "CIFS: ip address " + "too long\n"); return 1; } - } else if (strnicmp(data, "sec", 3) == 0) { - if (!value || !*value) { - cERROR(1,("no security value specified")); - continue; - } else if (strnicmp(value, "krb5i", 5) == 0) { - vol->secFlg |= CIFSSEC_MAY_KRB5 | + } else if (strnicmp(data, "sec", 3) == 0) { + if (!value || !*value) { + cERROR(1, ("no security value specified")); + continue; + } else if (strnicmp(value, "krb5i", 5) == 0) { + vol->secFlg |= CIFSSEC_MAY_KRB5 | CIFSSEC_MUST_SIGN; } else if (strnicmp(value, "krb5p", 5) == 0) { - /* vol->secFlg |= CIFSSEC_MUST_SEAL | - CIFSSEC_MAY_KRB5; */ - cERROR(1,("Krb5 cifs privacy not supported")); + /* vol->secFlg |= CIFSSEC_MUST_SEAL | + CIFSSEC_MAY_KRB5; */ + cERROR(1, ("Krb5 cifs privacy not supported")); return 1; } else if (strnicmp(value, "krb5", 4) == 0) { vol->secFlg |= CIFSSEC_MAY_KRB5; @@ -957,33 +964,34 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) vol->secFlg |= CIFSSEC_MAY_NTLMV2; #ifdef CONFIG_CIFS_WEAK_PW_HASH } else if (strnicmp(value, "lanman", 6) == 0) { - vol->secFlg |= CIFSSEC_MAY_LANMAN; + vol->secFlg |= CIFSSEC_MAY_LANMAN; #endif } else if (strnicmp(value, "none", 4) == 0) { vol->nullauth = 1; - } else { - cERROR(1,("bad security option: %s", value)); - return 1; - } + } else { + cERROR(1, ("bad security option: %s", value)); + return 1; + } } else if ((strnicmp(data, "unc", 3) == 0) || (strnicmp(data, "target", 6) == 0) || (strnicmp(data, "path", 4) == 0)) { if (!value || !*value) { - printk(KERN_WARNING - "CIFS: invalid path to network resource\n"); + printk(KERN_WARNING "CIFS: invalid path to " + "network resource\n"); return 1; /* needs_arg; */ } if ((temp_len = strnlen(value, 300)) < 300) { - vol->UNC = kmalloc(temp_len+1,GFP_KERNEL); + vol->UNC = kmalloc(temp_len+1, GFP_KERNEL); if (vol->UNC == NULL) return 1; - strcpy(vol->UNC,value); + strcpy(vol->UNC, value); if (strncmp(vol->UNC, "//", 2) == 0) { vol->UNC[0] = '\\'; vol->UNC[1] = '\\'; - } else if (strncmp(vol->UNC, "\\\\", 2) != 0) { + } else if (strncmp(vol->UNC, "\\\\", 2) != 0) { printk(KERN_WARNING - "CIFS: UNC Path does not begin with // or \\\\ \n"); + "CIFS: UNC Path does not begin " + "with // or \\\\ \n"); return 1; } } else { @@ -1002,43 +1010,47 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) vol->domainname = value; cFYI(1, ("Domain name set")); } else { - printk(KERN_WARNING "CIFS: domain name too long\n"); + printk(KERN_WARNING "CIFS: domain name too " + "long\n"); return 1; } - } else if (strnicmp(data, "prefixpath", 10) == 0) { - if (!value || !*value) { - printk(KERN_WARNING - "CIFS: invalid path prefix\n"); - return 1; /* needs_arg; */ - } - if ((temp_len = strnlen(value, 1024)) < 1024) { + } else if (strnicmp(data, "prefixpath", 10) == 0) { + if (!value || !*value) { + printk(KERN_WARNING + "CIFS: invalid path prefix\n"); + return 1; /* needs_argument */ + } + if ((temp_len = strnlen(value, 1024)) < 1024) { if (value[0] != '/') temp_len++; /* missing leading slash */ - vol->prepath = kmalloc(temp_len+1,GFP_KERNEL); - if (vol->prepath == NULL) - return 1; + vol->prepath = kmalloc(temp_len+1, GFP_KERNEL); + if (vol->prepath == NULL) + return 1; if (value[0] != '/') { vol->prepath[0] = '/'; - strcpy(vol->prepath+1,value); + strcpy(vol->prepath+1, value); } else - strcpy(vol->prepath,value); - cFYI(1,("prefix path %s",vol->prepath)); - } else { - printk(KERN_WARNING "CIFS: prefix too long\n"); - return 1; - } + strcpy(vol->prepath, value); + cFYI(1, ("prefix path %s", vol->prepath)); + } else { + printk(KERN_WARNING "CIFS: prefix too long\n"); + return 1; + } } else if (strnicmp(data, "iocharset", 9) == 0) { if (!value || !*value) { - printk(KERN_WARNING "CIFS: invalid iocharset specified\n"); + printk(KERN_WARNING "CIFS: invalid iocharset " + "specified\n"); return 1; /* needs_arg; */ } if (strnlen(value, 65) < 65) { - if (strnicmp(value,"default",7)) + if (strnicmp(value, "default", 7)) vol->iocharset = value; - /* if iocharset not set load_nls_default used by caller */ - cFYI(1, ("iocharset set to %s",value)); + /* if iocharset not set then load_nls_default + is used by caller */ + cFYI(1, ("iocharset set to %s", value)); } else { - printk(KERN_WARNING "CIFS: iocharset name too long.\n"); + printk(KERN_WARNING "CIFS: iocharset name " + "too long.\n"); return 1; } } else if (strnicmp(data, "uid", 3) == 0) { @@ -1090,54 +1102,59 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) } } else if (strnicmp(data, "netbiosname", 4) == 0) { if (!value || !*value || (*value == ' ')) { - cFYI(1,("invalid (empty) netbiosname specified")); + cFYI(1, ("invalid (empty) netbiosname")); } else { - memset(vol->source_rfc1001_name,0x20,15); - for(i=0;i<15;i++) { - /* BB are there cases in which a comma can be + memset(vol->source_rfc1001_name, 0x20, 15); + for (i = 0; i < 15; i++) { + /* BB are there cases in which a comma can be valid in this workstation netbios name (and need special handling)? */ /* We do not uppercase netbiosname for user */ - if (value[i]==0) + if (value[i] == 0) break; - else - vol->source_rfc1001_name[i] = value[i]; + else + vol->source_rfc1001_name[i] = + value[i]; } /* The string has 16th byte zero still from set at top of the function */ - if ((i==15) && (value[i] != 0)) - printk(KERN_WARNING "CIFS: netbiosname longer than 15 truncated.\n"); + if ((i == 15) && (value[i] != 0)) + printk(KERN_WARNING "CIFS: netbiosname" + " longer than 15 truncated.\n"); } } else if (strnicmp(data, "servern", 7) == 0) { /* servernetbiosname specified override *SMBSERVER */ if (!value || !*value || (*value == ' ')) { - cFYI(1,("empty server netbiosname specified")); + cFYI(1, ("empty server netbiosname specified")); } else { /* last byte, type, is 0x20 for servr type */ - memset(vol->target_rfc1001_name,0x20,16); + memset(vol->target_rfc1001_name, 0x20, 16); - for(i=0;i<15;i++) { + for (i = 0; i < 15; i++) { /* BB are there cases in which a comma can be - valid in this workstation netbios name (and need - special handling)? */ + valid in this workstation netbios name + (and need special handling)? */ - /* user or mount helper must uppercase netbiosname */ - if (value[i]==0) + /* user or mount helper must uppercase + the netbiosname */ + if (value[i] == 0) break; else - vol->target_rfc1001_name[i] = value[i]; + vol->target_rfc1001_name[i] = + value[i]; } /* The string has 16th byte zero still from set at top of the function */ - if ((i==15) && (value[i] != 0)) - printk(KERN_WARNING "CIFS: server netbiosname longer than 15 truncated.\n"); + if ((i == 15) && (value[i] != 0)) + printk(KERN_WARNING "CIFS: server net" + "biosname longer than 15 truncated.\n"); } } else if (strnicmp(data, "credentials", 4) == 0) { /* ignore */ } else if (strnicmp(data, "version", 3) == 0) { /* ignore */ - } else if (strnicmp(data, "guest",5) == 0) { + } else if (strnicmp(data, "guest", 5) == 0) { /* ignore */ } else if (strnicmp(data, "rw", 2) == 0) { vol->rw = TRUE; @@ -1149,11 +1166,11 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) (strnicmp(data, "noauto", 6) == 0) || (strnicmp(data, "dev", 3) == 0)) { /* The mount tool or mount.cifs helper (if present) - uses these opts to set flags, and the flags are read - by the kernel vfs layer before we get here (ie - before read super) so there is no point trying to - parse these options again and set anything and it - is ok to just ignore them */ + uses these opts to set flags, and the flags are read + by the kernel vfs layer before we get here (ie + before read super) so there is no point trying to + parse these options again and set anything and it + is ok to just ignore them */ continue; } else if (strnicmp(data, "ro", 2) == 0) { vol->rw = FALSE; @@ -1169,26 +1186,31 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) vol->remap = 1; } else if (strnicmp(data, "nomapchars", 10) == 0) { vol->remap = 0; - } else if (strnicmp(data, "sfu", 3) == 0) { - vol->sfu_emul = 1; - } else if (strnicmp(data, "nosfu", 5) == 0) { - vol->sfu_emul = 0; + } else if (strnicmp(data, "sfu", 3) == 0) { + vol->sfu_emul = 1; + } else if (strnicmp(data, "nosfu", 5) == 0) { + vol->sfu_emul = 0; } else if (strnicmp(data, "posixpaths", 10) == 0) { vol->posix_paths = 1; } else if (strnicmp(data, "noposixpaths", 12) == 0) { vol->posix_paths = 0; - } else if ((strnicmp(data, "nocase", 6) == 0) || + } else if (strnicmp(data, "nounix", 6) == 0) { + vol->no_linux_ext = 1; + } else if (strnicmp(data, "nolinux", 7) == 0) { + vol->no_linux_ext = 1; + } else if ((strnicmp(data, "nocase", 6) == 0) || (strnicmp(data, "ignorecase", 10) == 0)) { - vol->nocase = 1; + vol->nocase = 1; } else if (strnicmp(data, "brl", 3) == 0) { vol->nobrl = 0; - } else if ((strnicmp(data, "nobrl", 5) == 0) || + } else if ((strnicmp(data, "nobrl", 5) == 0) || (strnicmp(data, "nolock", 6) == 0)) { vol->nobrl = 1; /* turn off mandatory locking in mode if remote locking is turned off since the local vfs will do advisory */ - if(vol->file_mode == (S_IALLUGO & ~(S_ISUID | S_IXGRP))) + if (vol->file_mode == + (S_IALLUGO & ~(S_ISUID | S_IXGRP))) vol->file_mode = S_IALLUGO; } else if (strnicmp(data, "setuids", 7) == 0) { vol->setuids = 1; @@ -1202,55 +1224,61 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) vol->intr = 0; } else if (strnicmp(data, "intr", 4) == 0) { vol->intr = 1; - } else if (strnicmp(data, "serverino",7) == 0) { + } else if (strnicmp(data, "serverino", 7) == 0) { vol->server_ino = 1; - } else if (strnicmp(data, "noserverino",9) == 0) { + } else if (strnicmp(data, "noserverino", 9) == 0) { vol->server_ino = 0; - } else if (strnicmp(data, "cifsacl",7) == 0) { + } else if (strnicmp(data, "cifsacl", 7) == 0) { vol->cifs_acl = 1; } else if (strnicmp(data, "nocifsacl", 9) == 0) { vol->cifs_acl = 0; - } else if (strnicmp(data, "acl",3) == 0) { + } else if (strnicmp(data, "acl", 3) == 0) { vol->no_psx_acl = 0; - } else if (strnicmp(data, "noacl",5) == 0) { + } else if (strnicmp(data, "noacl", 5) == 0) { vol->no_psx_acl = 1; - } else if (strnicmp(data, "sign",4) == 0) { + } else if (strnicmp(data, "sign", 4) == 0) { vol->secFlg |= CIFSSEC_MUST_SIGN; /* } else if (strnicmp(data, "seal",4) == 0) { vol->secFlg |= CIFSSEC_MUST_SEAL; */ - } else if (strnicmp(data, "direct",6) == 0) { + } else if (strnicmp(data, "direct", 6) == 0) { vol->direct_io = 1; - } else if (strnicmp(data, "forcedirectio",13) == 0) { + } else if (strnicmp(data, "forcedirectio", 13) == 0) { vol->direct_io = 1; - } else if (strnicmp(data, "in6_addr",8) == 0) { + } else if (strnicmp(data, "in6_addr", 8) == 0) { if (!value || !*value) { vol->in6_addr = NULL; } else if (strnlen(value, 49) == 48) { vol->in6_addr = value; } else { - printk(KERN_WARNING "CIFS: ip v6 address not 48 characters long\n"); + printk(KERN_WARNING "CIFS: ip v6 address not " + "48 characters long\n"); return 1; } } else if (strnicmp(data, "noac", 4) == 0) { - printk(KERN_WARNING "CIFS: Mount option noac not supported. Instead set /proc/fs/cifs/LookupCacheEnabled to 0\n"); + printk(KERN_WARNING "CIFS: Mount option noac not " + "supported. Instead set " + "/proc/fs/cifs/LookupCacheEnabled to 0\n"); } else - printk(KERN_WARNING "CIFS: Unknown mount option %s\n",data); + printk(KERN_WARNING "CIFS: Unknown mount option %s\n", + data); } if (vol->UNC == NULL) { if (devname == NULL) { - printk(KERN_WARNING "CIFS: Missing UNC name for mount target\n"); + printk(KERN_WARNING "CIFS: Missing UNC name for mount " + "target\n"); return 1; } if ((temp_len = strnlen(devname, 300)) < 300) { - vol->UNC = kmalloc(temp_len+1,GFP_KERNEL); + vol->UNC = kmalloc(temp_len+1, GFP_KERNEL); if (vol->UNC == NULL) return 1; - strcpy(vol->UNC,devname); + strcpy(vol->UNC, devname); if (strncmp(vol->UNC, "//", 2) == 0) { vol->UNC[0] = '\\'; vol->UNC[1] = '\\'; } else if (strncmp(vol->UNC, "\\\\", 2) != 0) { - printk(KERN_WARNING "CIFS: UNC Path does not begin with // or \\\\ \n"); + printk(KERN_WARNING "CIFS: UNC Path does not " + "begin with // or \\\\ \n"); return 1; } } else { @@ -1258,14 +1286,14 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) return 1; } } - if(vol->UNCip == NULL) + if (vol->UNCip == NULL) vol->UNCip = &vol->UNC[2]; return 0; } static struct cifsSesInfo * -cifs_find_tcp_session(struct in_addr * target_ip_addr, +cifs_find_tcp_session(struct in_addr *target_ip_addr, struct in6_addr *target_ip6_addr, char *userName, struct TCP_Server_Info **psrvTcp) { @@ -1277,19 +1305,25 @@ cifs_find_tcp_session(struct in_addr * target_ip_addr, list_for_each(tmp, &GlobalSMBSessionList) { ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList); if (ses->server) { - if((target_ip_addr && + if ((target_ip_addr && (ses->server->addr.sockAddr.sin_addr.s_addr == target_ip_addr->s_addr)) || (target_ip6_addr && memcmp(&ses->server->addr.sockAddr6.sin6_addr, - target_ip6_addr,sizeof(*target_ip6_addr)))){ - /* BB lock server and tcp session and increment use count here?? */ - *psrvTcp = ses->server; /* found a match on the TCP session */ + target_ip6_addr, sizeof(*target_ip6_addr)))) { + /* BB lock server and tcp session and increment + use count here?? */ + + /* found a match on the TCP session */ + *psrvTcp = ses->server; + /* BB check if reconnection needed */ if (strncmp (ses->userName, userName, MAX_USERNAME_SIZE) == 0){ read_unlock(&GlobalSMBSeslock); - return ses; /* found exact match on both tcp and SMB sessions */ + /* Found exact match on both TCP and + SMB sessions */ + return ses; } } } @@ -1320,7 +1354,8 @@ find_unc(__be32 new_target_ip_addr, char *uncName, char *userName) /* BB lock tcon, server and tcp session and increment use count here? */ /* found a match on the TCP session */ /* BB check if reconnection needed */ - cFYI(1,("IP match, old UNC: %s new: %s", + cFYI(1, + ("IP match, old UNC: %s new: %s", tcon->treeName, uncName)); if (strncmp (tcon->treeName, uncName, @@ -1355,11 +1390,11 @@ connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo, unsigned int num_referrals; int rc = 0; - rc = get_dfs_path(xid, pSesInfo,old_path, nls_codepage, + rc = get_dfs_path(xid, pSesInfo, old_path, nls_codepage, &num_referrals, &referrals, remap); /* BB Add in code to: if valid refrl, if not ip address contact - the helper that resolves tcp names, mount to it, try to + the helper that resolves tcp names, mount to it, try to tcon to it unmount it if fail */ kfree(referrals); @@ -1368,10 +1403,9 @@ connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo, } int -get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, - const char *old_path, const struct nls_table *nls_codepage, - unsigned int *pnum_referrals, - unsigned char ** preferrals, int remap) +get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, const char *old_path, + const struct nls_table *nls_codepage, unsigned int *pnum_referrals, + unsigned char **preferrals, int remap) { char *temp_unc; int rc = 0; @@ -1380,7 +1414,8 @@ get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, if (pSesInfo->ipc_tid == 0) { temp_unc = kmalloc(2 /* for slashes */ + - strnlen(pSesInfo->serverName,SERVER_NAME_LEN_WITH_NULL * 2) + strnlen(pSesInfo->serverName, + SERVER_NAME_LEN_WITH_NULL * 2) + 1 + 4 /* slash IPC$ */ + 2, GFP_KERNEL); if (temp_unc == NULL) @@ -1391,7 +1426,7 @@ get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, strcpy(temp_unc + 2 + strlen(pSesInfo->serverName), "\\IPC$"); rc = CIFSTCon(xid, pSesInfo, temp_unc, NULL, nls_codepage); cFYI(1, - ("CIFS Tcon rc = %d ipc_tid = %d", rc,pSesInfo->ipc_tid)); + ("CIFS Tcon rc = %d ipc_tid = %d", rc, pSesInfo->ipc_tid)); kfree(temp_unc); } if (rc == 0) @@ -1402,62 +1437,63 @@ get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, } /* See RFC1001 section 14 on representation of Netbios names */ -static void rfc1002mangle(char * target,char * source, unsigned int length) +static void rfc1002mangle(char *target, char *source, unsigned int length) { - unsigned int i,j; + unsigned int i, j; - for(i=0,j=0;i<(length);i++) { + for (i = 0, j = 0; i < (length); i++) { /* mask a nibble at a time and encode */ target[j] = 'A' + (0x0F & (source[i] >> 4)); target[j+1] = 'A' + (0x0F & source[i]); - j+=2; + j += 2; } } static int -ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket, - char * netbios_name, char * target_name) +ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket, + char *netbios_name, char *target_name) { int rc = 0; int connected = 0; __be16 orig_port = 0; - if(*csocket == NULL) { - rc = sock_create_kern(PF_INET, SOCK_STREAM, IPPROTO_TCP, csocket); + if (*csocket == NULL) { + rc = sock_create_kern(PF_INET, SOCK_STREAM, + IPPROTO_TCP, csocket); if (rc < 0) { - cERROR(1, ("Error %d creating socket",rc)); + cERROR(1, ("Error %d creating socket", rc)); *csocket = NULL; return rc; } else { /* BB other socket options to set KEEPALIVE, NODELAY? */ - cFYI(1,("Socket created")); - (*csocket)->sk->sk_allocation = GFP_NOFS; + cFYI(1, ("Socket created")); + (*csocket)->sk->sk_allocation = GFP_NOFS; } } psin_server->sin_family = AF_INET; - if(psin_server->sin_port) { /* user overrode default port */ + if (psin_server->sin_port) { /* user overrode default port */ rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *) psin_server, - sizeof (struct sockaddr_in),0); + sizeof (struct sockaddr_in), 0); if (rc >= 0) connected = 1; - } + } - if(!connected) { - /* save original port so we can retry user specified port + if (!connected) { + /* save original port so we can retry user specified port later if fall back ports fail this time */ orig_port = psin_server->sin_port; /* do not retry on the same port we just failed on */ - if(psin_server->sin_port != htons(CIFS_PORT)) { + if (psin_server->sin_port != htons(CIFS_PORT)) { psin_server->sin_port = htons(CIFS_PORT); rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *) psin_server, - sizeof (struct sockaddr_in),0); + sizeof (struct sockaddr_in), 0); if (rc >= 0) connected = 1; } @@ -1465,60 +1501,63 @@ ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket, if (!connected) { psin_server->sin_port = htons(RFC1001_PORT); rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *) - psin_server, sizeof (struct sockaddr_in),0); - if (rc >= 0) + psin_server, + sizeof (struct sockaddr_in), 0); + if (rc >= 0) connected = 1; } /* give up here - unless we want to retry on different protocol families some day */ if (!connected) { - if(orig_port) + if (orig_port) psin_server->sin_port = orig_port; - cFYI(1,("Error %d connecting to server via ipv4",rc)); + cFYI(1, ("Error %d connecting to server via ipv4", rc)); sock_release(*csocket); *csocket = NULL; return rc; } - /* Eventually check for other socket options to change from - the default. sock_setsockopt not used because it expects + /* Eventually check for other socket options to change from + the default. sock_setsockopt not used because it expects user space buffer */ - cFYI(1,("sndbuf %d rcvbuf %d rcvtimeo 0x%lx",(*csocket)->sk->sk_sndbuf, + cFYI(1, ("sndbuf %d rcvbuf %d rcvtimeo 0x%lx", + (*csocket)->sk->sk_sndbuf, (*csocket)->sk->sk_rcvbuf, (*csocket)->sk->sk_rcvtimeo)); (*csocket)->sk->sk_rcvtimeo = 7 * HZ; /* make the bufsizes depend on wsize/rsize and max requests */ - if((*csocket)->sk->sk_sndbuf < (200 * 1024)) + if ((*csocket)->sk->sk_sndbuf < (200 * 1024)) (*csocket)->sk->sk_sndbuf = 200 * 1024; - if((*csocket)->sk->sk_rcvbuf < (140 * 1024)) + if ((*csocket)->sk->sk_rcvbuf < (140 * 1024)) (*csocket)->sk->sk_rcvbuf = 140 * 1024; /* send RFC1001 sessinit */ - if(psin_server->sin_port == htons(RFC1001_PORT)) { + if (psin_server->sin_port == htons(RFC1001_PORT)) { /* some servers require RFC1001 sessinit before sending - negprot - BB check reconnection in case where second + negprot - BB check reconnection in case where second sessinit is sent but no second negprot */ - struct rfc1002_session_packet * ses_init_buf; - struct smb_hdr * smb_buf; - ses_init_buf = kzalloc(sizeof(struct rfc1002_session_packet), GFP_KERNEL); - if(ses_init_buf) { + struct rfc1002_session_packet *ses_init_buf; + struct smb_hdr *smb_buf; + ses_init_buf = kzalloc(sizeof(struct rfc1002_session_packet), + GFP_KERNEL); + if (ses_init_buf) { ses_init_buf->trailer.session_req.called_len = 32; - if(target_name && (target_name[0] != 0)) { + if (target_name && (target_name[0] != 0)) { rfc1002mangle(ses_init_buf->trailer.session_req.called_name, target_name, 16); } else { rfc1002mangle(ses_init_buf->trailer.session_req.called_name, - DEFAULT_CIFS_CALLED_NAME,16); + DEFAULT_CIFS_CALLED_NAME, 16); } ses_init_buf->trailer.session_req.calling_len = 32; /* calling name ends in null (byte 16) from old smb convention. */ - if(netbios_name && (netbios_name[0] !=0)) { + if (netbios_name && (netbios_name[0] != 0)) { rfc1002mangle(ses_init_buf->trailer.session_req.calling_name, - netbios_name,16); + netbios_name, 16); } else { rfc1002mangle(ses_init_buf->trailer.session_req.calling_name, - "LINUX_CIFS_CLNT",16); + "LINUX_CIFS_CLNT", 16); } ses_init_buf->trailer.session_req.scope1 = 0; ses_init_buf->trailer.session_req.scope2 = 0; @@ -1528,20 +1567,20 @@ ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket, rc = smb_send(*csocket, smb_buf, 0x44, (struct sockaddr *)psin_server); kfree(ses_init_buf); - msleep(1); /* RFC1001 layer in at least one server + msleep(1); /* RFC1001 layer in at least one server requires very short break before negprot presumably because not expecting negprot to follow so fast. This is a simple - solution that works without + solution that works without complicating the code and causes no significant slowing down on mount for everyone else */ } - /* else the negprot may still work without this + /* else the negprot may still work without this even though malloc failed */ - + } - + return rc; } @@ -1552,41 +1591,42 @@ ipv6_connect(struct sockaddr_in6 *psin_server, struct socket **csocket) int connected = 0; __be16 orig_port = 0; - if(*csocket == NULL) { - rc = sock_create_kern(PF_INET6, SOCK_STREAM, IPPROTO_TCP, csocket); + if (*csocket == NULL) { + rc = sock_create_kern(PF_INET6, SOCK_STREAM, + IPPROTO_TCP, csocket); if (rc < 0) { - cERROR(1, ("Error %d creating ipv6 socket",rc)); + cERROR(1, ("Error %d creating ipv6 socket", rc)); *csocket = NULL; return rc; } else { /* BB other socket options to set KEEPALIVE, NODELAY? */ - cFYI(1,("ipv6 Socket created")); + cFYI(1, ("ipv6 Socket created")); (*csocket)->sk->sk_allocation = GFP_NOFS; } } psin_server->sin6_family = AF_INET6; - if(psin_server->sin6_port) { /* user overrode default port */ + if (psin_server->sin6_port) { /* user overrode default port */ rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *) psin_server, - sizeof (struct sockaddr_in6),0); + sizeof (struct sockaddr_in6), 0); if (rc >= 0) connected = 1; - } + } - if(!connected) { - /* save original port so we can retry user specified port + if (!connected) { + /* save original port so we can retry user specified port later if fall back ports fail this time */ orig_port = psin_server->sin6_port; /* do not retry on the same port we just failed on */ - if(psin_server->sin6_port != htons(CIFS_PORT)) { + if (psin_server->sin6_port != htons(CIFS_PORT)) { psin_server->sin6_port = htons(CIFS_PORT); rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *) psin_server, - sizeof (struct sockaddr_in6),0); + sizeof (struct sockaddr_in6), 0); if (rc >= 0) connected = 1; } @@ -1594,31 +1634,31 @@ ipv6_connect(struct sockaddr_in6 *psin_server, struct socket **csocket) if (!connected) { psin_server->sin6_port = htons(RFC1001_PORT); rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *) - psin_server, sizeof (struct sockaddr_in6),0); - if (rc >= 0) + psin_server, sizeof (struct sockaddr_in6), 0); + if (rc >= 0) connected = 1; } /* give up here - unless we want to retry on different protocol families some day */ if (!connected) { - if(orig_port) + if (orig_port) psin_server->sin6_port = orig_port; - cFYI(1,("Error %d connecting to server via ipv6",rc)); + cFYI(1, ("Error %d connecting to server via ipv6", rc)); sock_release(*csocket); *csocket = NULL; return rc; } - /* Eventually check for other socket options to change from - the default. sock_setsockopt not used because it expects + /* Eventually check for other socket options to change from + the default. sock_setsockopt not used because it expects user space buffer */ (*csocket)->sk->sk_rcvtimeo = 7 * HZ; - + return rc; } -void reset_cifs_unix_caps(int xid, struct cifsTconInfo * tcon, - struct super_block * sb, struct smb_vol * vol_info) +void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon, + struct super_block *sb, struct smb_vol *vol_info) { /* if we are reconnecting then should we check to see if * any requested capabilities changed locally e.g. via @@ -1630,65 +1670,87 @@ void reset_cifs_unix_caps(int xid, struct cifsTconInfo * tcon, * What if we wanted to mount the server share twice once with * and once without posixacls or posix paths? */ __u64 saved_cap = le64_to_cpu(tcon->fsUnixInfo.Capability); - - - if(!CIFSSMBQFSUnixInfo(xid, tcon)) { + + if (vol_info && vol_info->no_linux_ext) { + tcon->fsUnixInfo.Capability = 0; + tcon->unix_ext = 0; /* Unix Extensions disabled */ + cFYI(1, ("Linux protocol extensions disabled")); + return; + } else if (vol_info) + tcon->unix_ext = 1; /* Unix Extensions supported */ + + if (tcon->unix_ext == 0) { + cFYI(1, ("Unix extensions disabled so not set on reconnect")); + return; + } + + if (!CIFSSMBQFSUnixInfo(xid, tcon)) { __u64 cap = le64_to_cpu(tcon->fsUnixInfo.Capability); - + /* check for reconnect case in which we do not want to change the mount behavior if we can avoid it */ - if(vol_info == NULL) { - /* turn off POSIX ACL and PATHNAMES if not set + if (vol_info == NULL) { + /* turn off POSIX ACL and PATHNAMES if not set originally at mount time */ if ((saved_cap & CIFS_UNIX_POSIX_ACL_CAP) == 0) cap &= ~CIFS_UNIX_POSIX_ACL_CAP; if ((saved_cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) == 0) cap &= ~CIFS_UNIX_POSIX_PATHNAMES_CAP; - - - - } - + cap &= CIFS_UNIX_CAP_MASK; - if(vol_info && vol_info->no_psx_acl) + if (vol_info && vol_info->no_psx_acl) cap &= ~CIFS_UNIX_POSIX_ACL_CAP; - else if(CIFS_UNIX_POSIX_ACL_CAP & cap) { - cFYI(1,("negotiated posix acl support")); - if(sb) + else if (CIFS_UNIX_POSIX_ACL_CAP & cap) { + cFYI(1, ("negotiated posix acl support")); + if (sb) sb->s_flags |= MS_POSIXACL; } - if(vol_info && vol_info->posix_paths == 0) + if (vol_info && vol_info->posix_paths == 0) cap &= ~CIFS_UNIX_POSIX_PATHNAMES_CAP; - else if(cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) { - cFYI(1,("negotiate posix pathnames")); - if(sb) - CIFS_SB(sb)->mnt_cifs_flags |= + else if (cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) { + cFYI(1, ("negotiate posix pathnames")); + if (sb) + CIFS_SB(sb)->mnt_cifs_flags |= CIFS_MOUNT_POSIX_PATHS; } - + /* We might be setting the path sep back to a different form if we are reconnecting and the server switched its - posix path capability for this share */ - if(sb && (CIFS_SB(sb)->prepathlen > 0)) + posix path capability for this share */ + if (sb && (CIFS_SB(sb)->prepathlen > 0)) CIFS_SB(sb)->prepath[0] = CIFS_DIR_SEP(CIFS_SB(sb)); - - cFYI(1,("Negotiate caps 0x%x",(int)cap)); + + if (sb && (CIFS_SB(sb)->rsize > 127 * 1024)) { + if ((cap & CIFS_UNIX_LARGE_READ_CAP) == 0) { + CIFS_SB(sb)->rsize = 127 * 1024; +#ifdef CONFIG_CIFS_DEBUG2 + cFYI(1, ("larger reads not supported by srv")); +#endif + } + } + + + cFYI(1, ("Negotiate caps 0x%x", (int)cap)); #ifdef CONFIG_CIFS_DEBUG2 - if(cap & CIFS_UNIX_FCNTL_CAP) - cFYI(1,("FCNTL cap")); - if(cap & CIFS_UNIX_EXTATTR_CAP) - cFYI(1,("EXTATTR cap")); - if(cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) - cFYI(1,("POSIX path cap")); - if(cap & CIFS_UNIX_XATTR_CAP) - cFYI(1,("XATTR cap")); - if(cap & CIFS_UNIX_POSIX_ACL_CAP) - cFYI(1,("POSIX ACL cap")); + if (cap & CIFS_UNIX_FCNTL_CAP) + cFYI(1, ("FCNTL cap")); + if (cap & CIFS_UNIX_EXTATTR_CAP) + cFYI(1, ("EXTATTR cap")); + if (cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) + cFYI(1, ("POSIX path cap")); + if (cap & CIFS_UNIX_XATTR_CAP) + cFYI(1, ("XATTR cap")); + if (cap & CIFS_UNIX_POSIX_ACL_CAP) + cFYI(1, ("POSIX ACL cap")); + if (cap & CIFS_UNIX_LARGE_READ_CAP) + cFYI(1, ("very large read cap")); + if (cap & CIFS_UNIX_LARGE_WRITE_CAP) + cFYI(1, ("very large write cap")); #endif /* CIFS_DEBUG2 */ if (CIFSSMBSetFSUnixInfo(xid, tcon, cap)) { - cFYI(1,("setting capabilities failed")); + cFYI(1, ("setting capabilities failed")); } } } @@ -1712,8 +1774,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, xid = GetXid(); /* cFYI(1, ("Entering cifs_mount. Xid: %d with: %s", xid, mount_data)); */ - - memset(&volume_info,0,sizeof(struct smb_vol)); + + memset(&volume_info, 0, sizeof(struct smb_vol)); if (cifs_parse_mount_options(mount_data, devname, &volume_info)) { kfree(volume_info.UNC); kfree(volume_info.password); @@ -1723,15 +1785,15 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, } if (volume_info.nullauth) { - cFYI(1,("null user")); + cFYI(1, ("null user")); volume_info.username = NULL; } else if (volume_info.username) { /* BB fixme parse for domain name here */ - cFYI(1, ("Username: %s ", volume_info.username)); + cFYI(1, ("Username: %s", volume_info.username)); } else { cifserror("No username specified"); - /* In userspace mount helper we can get user name from alternate - locations such as env variables and files on disk */ + /* In userspace mount helper we can get user name from alternate + locations such as env variables and files on disk */ kfree(volume_info.UNC); kfree(volume_info.password); kfree(volume_info.prepath); @@ -1740,18 +1802,20 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, } if (volume_info.UNCip && volume_info.UNC) { - rc = cifs_inet_pton(AF_INET, volume_info.UNCip,&sin_server.sin_addr.s_addr); + rc = cifs_inet_pton(AF_INET, volume_info.UNCip, + &sin_server.sin_addr.s_addr); - if(rc <= 0) { + if (rc <= 0) { /* not ipv4 address, try ipv6 */ - rc = cifs_inet_pton(AF_INET6,volume_info.UNCip,&sin_server6.sin6_addr.in6_u); - if(rc > 0) + rc = cifs_inet_pton(AF_INET6, volume_info.UNCip, + &sin_server6.sin6_addr.in6_u); + if (rc > 0) address_type = AF_INET6; } else { address_type = AF_INET; } - - if(rc <= 0) { + + if (rc <= 0) { /* we failed translating address */ kfree(volume_info.UNC); kfree(volume_info.password); @@ -1763,9 +1827,10 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, cFYI(1, ("UNC: %s ip: %s", volume_info.UNC, volume_info.UNCip)); /* success */ rc = 0; - } else if (volume_info.UNCip){ - /* BB using ip addr as server name connect to the DFS root below */ - cERROR(1,("Connecting to DFS root not implemented yet")); + } else if (volume_info.UNCip) { + /* BB using ip addr as server name to connect to the + DFS root below */ + cERROR(1, ("Connecting to DFS root not implemented yet")); kfree(volume_info.UNC); kfree(volume_info.password); kfree(volume_info.prepath); @@ -1773,7 +1838,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, return -EINVAL; } else /* which servers DFS root would we conect to */ { cERROR(1, - ("CIFS mount error: No UNC path (e.g. -o unc=//192.168.1.100/public) specified")); + ("CIFS mount error: No UNC path (e.g. -o " + "unc=//192.168.1.100/public) specified")); kfree(volume_info.UNC); kfree(volume_info.password); kfree(volume_info.prepath); @@ -1782,13 +1848,14 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, } /* this is needed for ASCII cp to Unicode converts */ - if(volume_info.iocharset == NULL) { + if (volume_info.iocharset == NULL) { cifs_sb->local_nls = load_nls_default(); /* load_nls_default can not return null */ } else { cifs_sb->local_nls = load_nls(volume_info.iocharset); - if(cifs_sb->local_nls == NULL) { - cERROR(1,("CIFS mount error: iocharset %s not found",volume_info.iocharset)); + if (cifs_sb->local_nls == NULL) { + cERROR(1, ("CIFS mount error: iocharset %s not found", + volume_info.iocharset)); kfree(volume_info.UNC); kfree(volume_info.password); kfree(volume_info.prepath); @@ -1797,12 +1864,12 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, } } - if(address_type == AF_INET) + if (address_type == AF_INET) existingCifsSes = cifs_find_tcp_session(&sin_server.sin_addr, NULL /* no ipv6 addr */, volume_info.username, &srvTcp); - else if(address_type == AF_INET6) { - cFYI(1,("looking for ipv6 address")); + else if (address_type == AF_INET6) { + cFYI(1, ("looking for ipv6 address")); existingCifsSes = cifs_find_tcp_session(NULL /* no ipv4 addr */, &sin_server6.sin6_addr, volume_info.username, &srvTcp); @@ -1814,26 +1881,25 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, return -EINVAL; } - if (srvTcp) { - cFYI(1, ("Existing tcp session with server found")); + cFYI(1, ("Existing tcp session with server found")); } else { /* create socket */ if (volume_info.port) sin_server.sin_port = htons(volume_info.port); else sin_server.sin_port = 0; if (address_type == AF_INET6) { - cFYI(1,("attempting ipv6 connect")); + cFYI(1, ("attempting ipv6 connect")); /* BB should we allow ipv6 on port 139? */ /* other OS never observed in Wild doing 139 with v6 */ - rc = ipv6_connect(&sin_server6,&csocket); - } else - rc = ipv4_connect(&sin_server,&csocket, + rc = ipv6_connect(&sin_server6, &csocket); + } else + rc = ipv4_connect(&sin_server, &csocket, volume_info.source_rfc1001_name, volume_info.target_rfc1001_name); if (rc < 0) { - cERROR(1, - ("Error connecting to IPv4 socket. Aborting operation")); + cERROR(1, ("Error connecting to IPv4 socket. " + "Aborting operation")); if (csocket != NULL) sock_release(csocket); kfree(volume_info.UNC); @@ -1854,8 +1920,9 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, return rc; } else { memset(srvTcp, 0, sizeof (struct TCP_Server_Info)); - memcpy(&srvTcp->addr.sockAddr, &sin_server, sizeof (struct sockaddr_in)); - atomic_set(&srvTcp->inFlight,0); + memcpy(&srvTcp->addr.sockAddr, &sin_server, + sizeof (struct sockaddr_in)); + atomic_set(&srvTcp->inFlight, 0); /* BB Add code for ipv6 case too */ srvTcp->ssocket = csocket; srvTcp->protocolType = IPV4; @@ -1870,7 +1937,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, srvTcp->tsk = kthread_run((void *)(void *)cifs_demultiplex_thread, srvTcp, "cifsd"); if ( IS_ERR(srvTcp->tsk) ) { rc = PTR_ERR(srvTcp->tsk); - cERROR(1,("error %d create cifsd thread", rc)); + cERROR(1, ("error %d create cifsd thread", rc)); srvTcp->tsk = NULL; sock_release(csocket); kfree(volume_info.UNC); @@ -1881,8 +1948,10 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, } wait_for_completion(&cifsd_complete); rc = 0; - memcpy(srvTcp->workstation_RFC1001_name, volume_info.source_rfc1001_name,16); - memcpy(srvTcp->server_RFC1001_name, volume_info.target_rfc1001_name,16); + memcpy(srvTcp->workstation_RFC1001_name, + volume_info.source_rfc1001_name, 16); + memcpy(srvTcp->server_RFC1001_name, + volume_info.target_rfc1001_name, 16); srvTcp->sequence_number = 0; } } @@ -1903,16 +1972,17 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, NIPQUAD(sin_server.sin_addr.s_addr)); } - if (!rc){ - /* volume_info.password freed at unmount */ + if (!rc) { + /* volume_info.password freed at unmount */ if (volume_info.password) pSesInfo->password = volume_info.password; if (volume_info.username) strncpy(pSesInfo->userName, - volume_info.username,MAX_USERNAME_SIZE); + volume_info.username, + MAX_USERNAME_SIZE); if (volume_info.domainname) { int len = strlen(volume_info.domainname); - pSesInfo->domainName = + pSesInfo->domainName = kmalloc(len + 1, GFP_KERNEL); if (pSesInfo->domainName) strcpy(pSesInfo->domainName, @@ -1922,46 +1992,48 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, pSesInfo->overrideSecFlg = volume_info.secFlg; down(&pSesInfo->sesSem); /* BB FIXME need to pass vol->secFlgs BB */ - rc = cifs_setup_session(xid,pSesInfo, cifs_sb->local_nls); + rc = cifs_setup_session(xid, pSesInfo, + cifs_sb->local_nls); up(&pSesInfo->sesSem); if (!rc) atomic_inc(&srvTcp->socketUseCount); } else kfree(volume_info.password); } - + /* search for existing tcon to this server share */ if (!rc) { if (volume_info.rsize > CIFSMaxBufSize) { - cERROR(1,("rsize %d too large, using MaxBufSize", + cERROR(1, ("rsize %d too large, using MaxBufSize", volume_info.rsize)); cifs_sb->rsize = CIFSMaxBufSize; - } else if((volume_info.rsize) && (volume_info.rsize <= CIFSMaxBufSize)) + } else if ((volume_info.rsize) && + (volume_info.rsize <= CIFSMaxBufSize)) cifs_sb->rsize = volume_info.rsize; else /* default */ cifs_sb->rsize = CIFSMaxBufSize; if (volume_info.wsize > PAGEVEC_SIZE * PAGE_CACHE_SIZE) { - cERROR(1,("wsize %d too large using 4096 instead", + cERROR(1, ("wsize %d too large, using 4096 instead", volume_info.wsize)); cifs_sb->wsize = 4096; } else if (volume_info.wsize) cifs_sb->wsize = volume_info.wsize; else - cifs_sb->wsize = + cifs_sb->wsize = min_t(const int, PAGEVEC_SIZE * PAGE_CACHE_SIZE, 127*1024); /* old default of CIFSMaxBufSize was too small now - that SMB Write2 can send multiple pages in kvec. + that SMB Write2 can send multiple pages in kvec. RFC1001 does not describe what happens when frame bigger than 128K is sent so use that as max in conjunction with 52K kvec constraint on arch with 4K page size */ if (cifs_sb->rsize < 2048) { - cifs_sb->rsize = 2048; + cifs_sb->rsize = 2048; /* Windows ME may prefer this */ - cFYI(1,("readsize set to minimum 2048")); + cFYI(1, ("readsize set to minimum: 2048")); } /* calculate prepath */ cifs_sb->prepath = volume_info.prepath; @@ -1969,14 +2041,14 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, cifs_sb->prepathlen = strlen(cifs_sb->prepath); cifs_sb->prepath[0] = CIFS_DIR_SEP(cifs_sb); volume_info.prepath = NULL; - } else + } else cifs_sb->prepathlen = 0; cifs_sb->mnt_uid = volume_info.linux_uid; cifs_sb->mnt_gid = volume_info.linux_gid; cifs_sb->mnt_file_mode = volume_info.file_mode; cifs_sb->mnt_dir_mode = volume_info.dir_mode; - cFYI(1,("file mode: 0x%x dir mode: 0x%x", - cifs_sb->mnt_file_mode,cifs_sb->mnt_dir_mode)); + cFYI(1, ("file mode: 0x%x dir mode: 0x%x", + cifs_sb->mnt_file_mode, cifs_sb->mnt_dir_mode)); if (volume_info.noperm) cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_PERM; @@ -1999,7 +2071,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, if (volume_info.override_gid) cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_OVERR_GID; if (volume_info.direct_io) { - cFYI(1,("mounting share using direct i/o")); + cFYI(1, ("mounting share using direct i/o")); cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_DIRECT_IO; } @@ -2010,7 +2082,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, cFYI(1, ("Found match on UNC path")); /* we can have only one retry value for a connection to a share so for resources mounted more than once - to the same server share the last value passed in + to the same server share the last value passed in for the retry flag is used */ tcon->retry = volume_info.retry; tcon->nocase = volume_info.nocase; @@ -2019,17 +2091,17 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, if (tcon == NULL) rc = -ENOMEM; else { - /* check for null share name ie connecting to + /* check for null share name ie connecting to * dfs root */ - /* BB check if this works for exactly length + /* BB check if this works for exactly length * three strings */ if ((strchr(volume_info.UNC + 3, '\\') == NULL) && (strchr(volume_info.UNC + 3, '/') == NULL)) { rc = connect_to_dfs_path(xid, pSesInfo, "", cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); kfree(volume_info.UNC); FreeXid(xid); @@ -2038,7 +2110,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, /* BB Do we need to wrap sesSem around * this TCon call and Unix SetFS as * we do on SessSetup and reconnect? */ - rc = CIFSTCon(xid, pSesInfo, + rc = CIFSTCon(xid, pSesInfo, volume_info.UNC, tcon, cifs_sb->local_nls); cFYI(1, ("CIFS Tcon rc = %d", rc)); @@ -2075,9 +2147,9 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, always wake up processes blocked in tcp in recv_mesg then we could remove the send_sig call */ - send_sig(SIGKILL,srvTcp->tsk,1); + force_sig(SIGKILL, srvTcp->tsk); tsk = srvTcp->tsk; - if(tsk) + if (tsk) kthread_stop(tsk); } } @@ -2086,15 +2158,17 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, tconInfoFree(tcon); if (existingCifsSes == NULL) { if (pSesInfo) { - if ((pSesInfo->server) && + if ((pSesInfo->server) && (pSesInfo->status == CifsGood)) { int temp_rc; temp_rc = CIFSSMBLogoff(xid, pSesInfo); /* if the socketUseCount is now zero */ if ((temp_rc == -ESHUTDOWN) && - (pSesInfo->server) && (pSesInfo->server->tsk)) { + (pSesInfo->server) && + (pSesInfo->server->tsk)) { struct task_struct *tsk; - send_sig(SIGKILL,pSesInfo->server->tsk,1); + force_sig(SIGKILL, + pSesInfo->server->tsk); tsk = pSesInfo->server->tsk; if (tsk) kthread_stop(tsk); @@ -2113,19 +2187,29 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, /* do not care if following two calls succeed - informational */ CIFSSMBQFSDeviceInfo(xid, tcon); CIFSSMBQFSAttributeInfo(xid, tcon); - + /* tell server which Unix caps we support */ if (tcon->ses->capabilities & CAP_UNIX) + /* reset of caps checks mount to see if unix extensions + disabled for just this mount */ reset_cifs_unix_caps(xid, tcon, sb, &volume_info); - + else + tcon->unix_ext = 0; /* server does not support them */ + + if ((tcon->unix_ext == 0) && (cifs_sb->rsize > (1024 * 127))) { + cifs_sb->rsize = 1024 * 127; +#ifdef CONFIG_CIFS_DEBUG2 + cFYI(1, ("no very large read support, rsize now 127K")); +#endif + } if (!(tcon->ses->capabilities & CAP_LARGE_WRITE_X)) cifs_sb->wsize = min(cifs_sb->wsize, (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE)); if (!(tcon->ses->capabilities & CAP_LARGE_READ_X)) - cifs_sb->rsize = min(cifs_sb->rsize, - (tcon->ses->server->maxBuf - - MAX_CIFS_HDR_SIZE)); + cifs_sb->rsize = min(cifs_sb->rsize, + (tcon->ses->server->maxBuf - + MAX_CIFS_HDR_SIZE)); } /* volume_info.password is freed above when existing session found @@ -2178,7 +2262,8 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, pSMB->req_no_secext.MaxBufferSize = cpu_to_le16(ses->server->maxBuf); pSMB->req_no_secext.MaxMpxCount = cpu_to_le16(ses->server->maxReq); - if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) + if (ses->server->secMode & + (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS | @@ -2197,7 +2282,7 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, } pSMB->req_no_secext.Capabilities = cpu_to_le32(capabilities); - pSMB->req_no_secext.CaseInsensitivePasswordLength = + pSMB->req_no_secext.CaseInsensitivePasswordLength = cpu_to_le16(CIFS_SESS_KEY_SIZE); pSMB->req_no_secext.CaseSensitivePasswordLength = @@ -2215,9 +2300,9 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, } if (user == NULL) bytes_returned = 0; /* skip null user */ - else + else bytes_returned = - cifs_strtoUCS((__le16 *) bcc_ptr, user, 100, + cifs_strtoUCS((__le16 *) bcc_ptr, user, 100, nls_codepage); /* convert number of 16 bit words to bytes */ bcc_ptr += 2 * bytes_returned; @@ -2247,7 +2332,7 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, bcc_ptr += 2 * bytes_returned; bcc_ptr += 2; } else { - if (user != NULL) { + if (user != NULL) { strncpy(bcc_ptr, user, 200); bcc_ptr += strnlen(user, 200); } @@ -2282,11 +2367,12 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, __u16 action = le16_to_cpu(pSMBr->resp.Action); __u16 blob_len = le16_to_cpu(pSMBr->resp.SecurityBlobLength); if (action & GUEST_LOGIN) - cFYI(1, (" Guest login")); /* do we want to mark SesInfo struct ? */ - ses->Suid = smb_buffer_response->Uid; /* UID left in wire format (le) */ + cFYI(1, (" Guest login")); /* BB mark SesInfo struct? */ + ses->Suid = smb_buffer_response->Uid; /* UID left in wire format + (little endian) */ cFYI(1, ("UID = %d ", ses->Suid)); - /* response can have either 3 or 4 word count - Samba sends 3 */ - bcc_ptr = pByteArea(smb_buffer_response); + /* response can have either 3 or 4 word count - Samba sends 3 */ + bcc_ptr = pByteArea(smb_buffer_response); if ((pSMBr->resp.hdr.WordCount == 3) || ((pSMBr->resp.hdr.WordCount == 4) && (blob_len < pSMBr->resp.ByteCount))) { @@ -2296,8 +2382,10 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, if (smb_buffer->Flags2 & SMBFLG2_UNICODE) { if ((long) (bcc_ptr) % 2) { remaining_words = - (BCC(smb_buffer_response) - 1) /2; - bcc_ptr++; /* Unicode strings must be word aligned */ + (BCC(smb_buffer_response) - 1) / 2; + /* Unicode strings must be word + aligned */ + bcc_ptr++; } else { remaining_words = BCC(smb_buffer_response) / 2; @@ -2308,13 +2396,15 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, /* We look for obvious messed up bcc or strings in response so we do not go off the end since (at least) WIN2K and Windows XP have a major bug in not null terminating last Unicode string in response */ - if(ses->serverOS) + if (ses->serverOS) kfree(ses->serverOS); - ses->serverOS = kzalloc(2 * (len + 1), GFP_KERNEL); - if(ses->serverOS == NULL) + ses->serverOS = kzalloc(2 * (len + 1), + GFP_KERNEL); + if (ses->serverOS == NULL) goto sesssetup_nomem; cifs_strfromUCS_le(ses->serverOS, - (__le16 *)bcc_ptr, len,nls_codepage); + (__le16 *)bcc_ptr, + len, nls_codepage); bcc_ptr += 2 * (len + 1); remaining_words -= len + 1; ses->serverOS[2 * len] = 0; @@ -2323,42 +2413,49 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, len = UniStrnlen((wchar_t *)bcc_ptr, remaining_words-1); kfree(ses->serverNOS); - ses->serverNOS = kzalloc(2 * (len + 1),GFP_KERNEL); - if(ses->serverNOS == NULL) + ses->serverNOS = kzalloc(2 * (len + 1), + GFP_KERNEL); + if (ses->serverNOS == NULL) goto sesssetup_nomem; cifs_strfromUCS_le(ses->serverNOS, - (__le16 *)bcc_ptr,len,nls_codepage); + (__le16 *)bcc_ptr, + len, nls_codepage); bcc_ptr += 2 * (len + 1); ses->serverNOS[2 * len] = 0; ses->serverNOS[1 + (2 * len)] = 0; - if(strncmp(ses->serverNOS, - "NT LAN Manager 4",16) == 0) { - cFYI(1,("NT4 server")); + if (strncmp(ses->serverNOS, + "NT LAN Manager 4", 16) == 0) { + cFYI(1, ("NT4 server")); ses->flags |= CIFS_SES_NT4; } remaining_words -= len + 1; if (remaining_words > 0) { len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words); - /* last string is not always null terminated (for e.g. for Windows XP & 2000) */ - if(ses->serverDomain) + /* last string is not always null terminated + (for e.g. for Windows XP & 2000) */ + if (ses->serverDomain) kfree(ses->serverDomain); ses->serverDomain = - kzalloc(2*(len+1),GFP_KERNEL); - if(ses->serverDomain == NULL) + kzalloc(2*(len+1), + GFP_KERNEL); + if (ses->serverDomain == NULL) goto sesssetup_nomem; cifs_strfromUCS_le(ses->serverDomain, - (__le16 *)bcc_ptr,len,nls_codepage); + (__le16 *)bcc_ptr, + len, nls_codepage); bcc_ptr += 2 * (len + 1); ses->serverDomain[2*len] = 0; ses->serverDomain[1+(2*len)] = 0; - } /* else no more room so create dummy domain string */ - else { - if(ses->serverDomain) + } else { /* else no more room so create + dummy domain string */ + if (ses->serverDomain) kfree(ses->serverDomain); - ses->serverDomain = + ses->serverDomain = kzalloc(2, GFP_KERNEL); } - } else { /* no room so create dummy domain and NOS string */ + } else { /* no room so create dummy domain + and NOS string */ + /* if these kcallocs fail not much we can do, but better to not fail the sesssetup itself */ @@ -2375,19 +2472,22 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, pByteArea(smb_buffer_response) <= BCC(smb_buffer_response)) { kfree(ses->serverOS); - ses->serverOS = kzalloc(len + 1,GFP_KERNEL); - if(ses->serverOS == NULL) + ses->serverOS = kzalloc(len + 1, + GFP_KERNEL); + if (ses->serverOS == NULL) goto sesssetup_nomem; - strncpy(ses->serverOS,bcc_ptr, len); + strncpy(ses->serverOS, bcc_ptr, len); bcc_ptr += len; - bcc_ptr[0] = 0; /* null terminate the string */ + /* null terminate the string */ + bcc_ptr[0] = 0; bcc_ptr++; len = strnlen(bcc_ptr, 1024); kfree(ses->serverNOS); - ses->serverNOS = kzalloc(len + 1,GFP_KERNEL); - if(ses->serverNOS == NULL) + ses->serverNOS = kzalloc(len + 1, + GFP_KERNEL); + if (ses->serverNOS == NULL) goto sesssetup_nomem; strncpy(ses->serverNOS, bcc_ptr, len); bcc_ptr += len; @@ -2395,23 +2495,27 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, bcc_ptr++; len = strnlen(bcc_ptr, 1024); - if(ses->serverDomain) + if (ses->serverDomain) kfree(ses->serverDomain); - ses->serverDomain = kzalloc(len + 1,GFP_KERNEL); - if(ses->serverDomain == NULL) + ses->serverDomain = kzalloc(len + 1, + GFP_KERNEL); + if (ses->serverDomain == NULL) goto sesssetup_nomem; - strncpy(ses->serverDomain, bcc_ptr, len); + strncpy(ses->serverDomain, bcc_ptr, + len); bcc_ptr += len; bcc_ptr[0] = 0; bcc_ptr++; } else cFYI(1, - ("Variable field of length %d extends beyond end of smb ", + ("Variable field of length %d " + "extends beyond end of smb ", len)); } } else { cERROR(1, - (" Security Blob Length extends beyond end of SMB")); + (" Security Blob Length extends beyond " + "end of SMB")); } } else { cERROR(1, @@ -2430,7 +2534,7 @@ sesssetup_nomem: /* do not return an error on nomem for the info strings, static int CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, - struct cifsSesInfo *ses, int * pNTLMv2_flag, + struct cifsSesInfo *ses, int *pNTLMv2_flag, const struct nls_table *nls_codepage) { struct smb_hdr *smb_buffer; @@ -2450,7 +2554,7 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, __u16 count; cFYI(1, ("In NTLMSSP sesssetup (negotiate)")); - if(ses == NULL) + if (ses == NULL) return -EINVAL; domain = ses->domainName; *pNTLMv2_flag = FALSE; @@ -2474,7 +2578,7 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf); pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq); - if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) + if (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS | @@ -2502,9 +2606,9 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, NTLMSSP_REQUEST_TARGET | NTLMSSP_NEGOTIATE_NTLM | NTLMSSP_NEGOTIATE_56 | /* NTLMSSP_NEGOTIATE_ALWAYS_SIGN | */ NTLMSSP_NEGOTIATE_128; - if(sign_CIFS_PDUs) + if (sign_CIFS_PDUs) negotiate_flags |= NTLMSSP_NEGOTIATE_SIGN; -/* if(ntlmv2_support) +/* if (ntlmv2_support) negotiate_flags |= NTLMSSP_NEGOTIATE_NTLMV2;*/ /* setup pointers to domain name and workstation name */ bcc_ptr += SecurityBlobLength; @@ -2574,11 +2678,11 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, __u16 blob_len = le16_to_cpu(pSMBr->resp.SecurityBlobLength); if (action & GUEST_LOGIN) - cFYI(1, (" Guest login")); - /* Do we want to set anything in SesInfo struct when guest login? */ + cFYI(1, (" Guest login")); + /* Do we want to set anything in SesInfo struct when guest login? */ - bcc_ptr = pByteArea(smb_buffer_response); - /* response can have either 3 or 4 word count - Samba sends 3 */ + bcc_ptr = pByteArea(smb_buffer_response); + /* response can have either 3 or 4 word count - Samba sends 3 */ SecurityBlob2 = (PCHALLENGE_MESSAGE) bcc_ptr; if (SecurityBlob2->MessageType != NtLmChallenge) { @@ -2586,7 +2690,7 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, ("Unexpected NTLMSSP message type received %d", SecurityBlob2->MessageType)); } else if (ses) { - ses->Suid = smb_buffer_response->Uid; /* UID left in le format */ + ses->Suid = smb_buffer_response->Uid; /* UID left in le format */ cFYI(1, ("UID = %d", ses->Suid)); if ((pSMBr->resp.hdr.WordCount == 3) || ((pSMBr->resp.hdr.WordCount == 4) @@ -2604,18 +2708,18 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, memcpy(ses->server->cryptKey, SecurityBlob2->Challenge, CIFS_CRYPTO_KEY_SIZE); - if(SecurityBlob2->NegotiateFlags & + if (SecurityBlob2->NegotiateFlags & cpu_to_le32(NTLMSSP_NEGOTIATE_NTLMV2)) *pNTLMv2_flag = TRUE; - if((SecurityBlob2->NegotiateFlags & - cpu_to_le32(NTLMSSP_NEGOTIATE_ALWAYS_SIGN)) + if ((SecurityBlob2->NegotiateFlags & + cpu_to_le32(NTLMSSP_NEGOTIATE_ALWAYS_SIGN)) || (sign_CIFS_PDUs > 1)) - ses->server->secMode |= - SECMODE_SIGN_REQUIRED; - if ((SecurityBlob2->NegotiateFlags & + ses->server->secMode |= + SECMODE_SIGN_REQUIRED; + if ((SecurityBlob2->NegotiateFlags & cpu_to_le32(NTLMSSP_NEGOTIATE_SIGN)) && (sign_CIFS_PDUs)) - ses->server->secMode |= + ses->server->secMode |= SECMODE_SIGN_ENABLED; if (smb_buffer->Flags2 & SMBFLG2_UNICODE) { @@ -2623,7 +2727,8 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, remaining_words = (BCC(smb_buffer_response) - 1) / 2; - bcc_ptr++; /* Unicode strings must be word aligned */ + /* Must word align unicode strings */ + bcc_ptr++; } else { remaining_words = BCC @@ -2635,7 +2740,7 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, /* We look for obvious messed up bcc or strings in response so we do not go off the end since (at least) WIN2K and Windows XP have a major bug in not null terminating last Unicode string in response */ - if(ses->serverOS) + if (ses->serverOS) kfree(ses->serverOS); ses->serverOS = kzalloc(2 * (len + 1), GFP_KERNEL); @@ -2668,8 +2773,9 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, (2 * len)] = 0; remaining_words -= len + 1; if (remaining_words > 0) { - len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words); - /* last string is not always null terminated (for e.g. for Windows XP & 2000) */ + len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words); + /* last string not always null terminated + (for e.g. for Windows XP & 2000) */ kfree(ses->serverDomain); ses->serverDomain = kzalloc(2 * @@ -2707,7 +2813,7 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, if (((long) bcc_ptr + len) - (long) pByteArea(smb_buffer_response) <= BCC(smb_buffer_response)) { - if(ses->serverOS) + if (ses->serverOS) kfree(ses->serverOS); ses->serverOS = kzalloc(len + 1, @@ -2734,18 +2840,20 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, ses->serverDomain = kzalloc(len + 1, GFP_KERNEL); - strncpy(ses->serverDomain, bcc_ptr, len); + strncpy(ses->serverDomain, + bcc_ptr, len); bcc_ptr += len; bcc_ptr[0] = 0; bcc_ptr++; } else cFYI(1, - ("Variable field of length %d extends beyond end of smb", + ("field of length %d " + "extends beyond end of smb", len)); } } else { - cERROR(1, - (" Security Blob Length extends beyond end of SMB")); + cERROR(1, ("Security Blob Length extends beyond" + " end of SMB")); } } else { cERROR(1, ("No session structure passed in.")); @@ -2784,7 +2892,7 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, __u16 count; cFYI(1, ("In NTLMSSPSessSetup (Authenticate)")); - if(ses == NULL) + if (ses == NULL) return -EINVAL; user = ses->userName; domain = ses->domainName; @@ -2809,7 +2917,7 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, pSMB->req.hdr.Uid = ses->Suid; - if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) + if (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS | @@ -2833,13 +2941,13 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, strncpy(SecurityBlob->Signature, NTLMSSP_SIGNATURE, 8); SecurityBlob->MessageType = NtLmAuthenticate; bcc_ptr += SecurityBlobLength; - negotiate_flags = + negotiate_flags = NTLMSSP_NEGOTIATE_UNICODE | NTLMSSP_REQUEST_TARGET | NTLMSSP_NEGOTIATE_NTLM | NTLMSSP_NEGOTIATE_TARGET_INFO | 0x80000000 | NTLMSSP_NEGOTIATE_128; - if(sign_CIFS_PDUs) + if (sign_CIFS_PDUs) negotiate_flags |= /* NTLMSSP_NEGOTIATE_ALWAYS_SIGN |*/ NTLMSSP_NEGOTIATE_SIGN; - if(ntlmv2_flag) + if (ntlmv2_flag) negotiate_flags |= NTLMSSP_NEGOTIATE_NTLMV2; /* setup pointers to domain name and workstation name */ @@ -2903,13 +3011,17 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, cpu_to_le16(len); } - /* SecurityBlob->WorkstationName.Length = cifs_strtoUCS((__le16 *) bcc_ptr, "AMACHINE",64, nls_codepage); + /* SecurityBlob->WorkstationName.Length = + cifs_strtoUCS((__le16 *) bcc_ptr, "AMACHINE",64, nls_codepage); SecurityBlob->WorkstationName.Length *= 2; - SecurityBlob->WorkstationName.MaximumLength = cpu_to_le16(SecurityBlob->WorkstationName.Length); - SecurityBlob->WorkstationName.Buffer = cpu_to_le32(SecurityBlobLength); + SecurityBlob->WorkstationName.MaximumLength = + cpu_to_le16(SecurityBlob->WorkstationName.Length); + SecurityBlob->WorkstationName.Buffer = + cpu_to_le32(SecurityBlobLength); bcc_ptr += SecurityBlob->WorkstationName.Length; SecurityBlobLength += SecurityBlob->WorkstationName.Length; - SecurityBlob->WorkstationName.Length = cpu_to_le16(SecurityBlob->WorkstationName.Length); */ + SecurityBlob->WorkstationName.Length = + cpu_to_le16(SecurityBlob->WorkstationName.Length); */ if ((long) bcc_ptr % 2) { *bcc_ptr = 0; @@ -2995,17 +3107,20 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, __u16 blob_len = le16_to_cpu(pSMBr->resp.SecurityBlobLength); if (action & GUEST_LOGIN) - cFYI(1, (" Guest login")); /* BB do we want to set anything in SesInfo struct ? */ -/* if(SecurityBlob2->MessageType != NtLm??){ - cFYI("Unexpected message type on auth response is %d ")); - } */ + cFYI(1, (" Guest login")); /* BB Should we set anything + in SesInfo struct ? */ +/* if (SecurityBlob2->MessageType != NtLm??) { + cFYI("Unexpected message type on auth response is %d")); + } */ + if (ses) { cFYI(1, - ("Does UID on challenge %d match auth response UID %d ", + ("Check challenge UID %d vs auth response UID %d", ses->Suid, smb_buffer_response->Uid)); - ses->Suid = smb_buffer_response->Uid; /* UID left in wire format */ - bcc_ptr = pByteArea(smb_buffer_response); - /* response can have either 3 or 4 word count - Samba sends 3 */ + /* UID left in wire format */ + ses->Suid = smb_buffer_response->Uid; + bcc_ptr = pByteArea(smb_buffer_response); + /* response can have either 3 or 4 word count - Samba sends 3 */ if ((pSMBr->resp.hdr.WordCount == 3) || ((pSMBr->resp.hdr.WordCount == 4) && (blob_len < @@ -3035,7 +3150,7 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, /* We look for obvious messed up bcc or strings in response so we do not go off the end since (at least) WIN2K and Windows XP have a major bug in not null terminating last Unicode string in response */ - if(ses->serverOS) + if (ses->serverOS) kfree(ses->serverOS); ses->serverOS = kzalloc(2 * (len + 1), GFP_KERNEL); @@ -3067,9 +3182,9 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, ses->serverNOS[1+(2*len)] = 0; remaining_words -= len + 1; if (remaining_words > 0) { - len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words); + len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words); /* last string not always null terminated (e.g. for Windows XP & 2000) */ - if(ses->serverDomain) + if (ses->serverDomain) kfree(ses->serverDomain); ses->serverDomain = kzalloc(2 * @@ -3097,12 +3212,12 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, = 0; } /* else no more room so create dummy domain string */ else { - if(ses->serverDomain) + if (ses->serverDomain) kfree(ses->serverDomain); ses->serverDomain = kzalloc(2,GFP_KERNEL); } } else { /* no room so create dummy domain and NOS string */ - if(ses->serverDomain) + if (ses->serverDomain) kfree(ses->serverDomain); ses->serverDomain = kzalloc(2, GFP_KERNEL); kfree(ses->serverNOS); @@ -3110,10 +3225,10 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, } } else { /* ASCII */ len = strnlen(bcc_ptr, 1024); - if (((long) bcc_ptr + len) - - (long) pByteArea(smb_buffer_response) - <= BCC(smb_buffer_response)) { - if(ses->serverOS) + if (((long) bcc_ptr + len) - + (long) pByteArea(smb_buffer_response) + <= BCC(smb_buffer_response)) { + if (ses->serverOS) kfree(ses->serverOS); ses->serverOS = kzalloc(len + 1,GFP_KERNEL); strncpy(ses->serverOS,bcc_ptr, len); @@ -3124,28 +3239,35 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, len = strnlen(bcc_ptr, 1024); kfree(ses->serverNOS); - ses->serverNOS = kzalloc(len+1,GFP_KERNEL); - strncpy(ses->serverNOS, bcc_ptr, len); + ses->serverNOS = kzalloc(len+1, + GFP_KERNEL); + strncpy(ses->serverNOS, + bcc_ptr, len); bcc_ptr += len; bcc_ptr[0] = 0; bcc_ptr++; len = strnlen(bcc_ptr, 1024); - if(ses->serverDomain) + if (ses->serverDomain) kfree(ses->serverDomain); - ses->serverDomain = kzalloc(len+1,GFP_KERNEL); - strncpy(ses->serverDomain, bcc_ptr, len); + ses->serverDomain = + kzalloc(len+1, + GFP_KERNEL); + strncpy(ses->serverDomain, + bcc_ptr, len); bcc_ptr += len; bcc_ptr[0] = 0; bcc_ptr++; } else cFYI(1, - ("Variable field of length %d extends beyond end of smb ", + ("field of length %d " + "extends beyond end of smb ", len)); } } else { cERROR(1, - (" Security Blob Length extends beyond end of SMB")); + (" Security Blob extends beyond end " + "of SMB")); } } else { cERROR(1, ("No session structure passed in.")); @@ -3197,7 +3319,7 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, pSMB->AndXCommand = 0xFF; pSMB->Flags = cpu_to_le16(TCON_EXTENDED_SECINFO); bcc_ptr = &pSMB->Password[0]; - if((ses->server->secMode) & SECMODE_USER) { + if ((ses->server->secMode) & SECMODE_USER) { pSMB->PasswordLength = cpu_to_le16(1); /* minimum */ *bcc_ptr = 0; /* password is null byte */ bcc_ptr++; /* skip password */ @@ -3211,7 +3333,7 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, by Samba (not sure whether other servers allow NTLMv2 password here) */ #ifdef CONFIG_CIFS_WEAK_PW_HASH - if((extended_security & CIFSSEC_MAY_LANMAN) && + if ((extended_security & CIFSSEC_MAY_LANMAN) && (ses->server->secType == LANMAN)) calc_lanman_hash(ses, bcc_ptr); else @@ -3221,14 +3343,14 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, bcc_ptr); bcc_ptr += CIFS_SESS_KEY_SIZE; - if(ses->capabilities & CAP_UNICODE) { + if (ses->capabilities & CAP_UNICODE) { /* must align unicode strings */ *bcc_ptr = 0; /* null byte password */ bcc_ptr++; } } - if(ses->server->secMode & + if (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; @@ -3241,8 +3363,8 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, if (ses->capabilities & CAP_UNICODE) { smb_buffer->Flags2 |= SMBFLG2_UNICODE; length = - cifs_strtoUCS((__le16 *) bcc_ptr, tree, - 6 /* max utf8 char length in bytes */ * + cifs_strtoUCS((__le16 *) bcc_ptr, tree, + 6 /* max utf8 char length in bytes */ * (/* server len*/ + 256 /* share len */), nls_codepage); bcc_ptr += 2 * length; /* convert num 16 bit words to bytes */ bcc_ptr += 2; /* skip trailing null */ @@ -3266,8 +3388,8 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, tcon->tid = smb_buffer_response->Tid; bcc_ptr = pByteArea(smb_buffer_response); length = strnlen(bcc_ptr, BCC(smb_buffer_response) - 2); - /* skip service field (NB: this field is always ASCII) */ - bcc_ptr += length + 1; + /* skip service field (NB: this field is always ASCII) */ + bcc_ptr += length + 1; strncpy(tcon->treeName, tree, MAX_TREE_SIZE); if (smb_buffer->Flags2 & SMBFLG2_UNICODE) { length = UniStrnlen((wchar_t *) bcc_ptr, 512); @@ -3285,7 +3407,7 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, bcc_ptr[1] = 0; bcc_ptr += 2; } - /* else do not bother copying these informational fields */ + /* else do not bother copying these information fields*/ } else { length = strnlen(bcc_ptr, 1024); if ((bcc_ptr + length) - @@ -3297,9 +3419,9 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, strncpy(tcon->nativeFileSystem, bcc_ptr, length); } - /* else do not bother copying these informational fields */ + /* else do not bother copying these information fields*/ } - if((smb_buffer_response->WordCount == 3) || + if ((smb_buffer_response->WordCount == 3) || (smb_buffer_response->WordCount == 7)) /* field is in same location */ tcon->Flags = le16_to_cpu(pSMBr->OptionalSupport); @@ -3307,7 +3429,7 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, tcon->Flags = 0; cFYI(1, ("Tcon flags: 0x%x ", tcon->Flags)); } else if ((rc == 0) && tcon == NULL) { - /* all we need to save for IPC$ connection */ + /* all we need to save for IPC$ connection */ ses->ipc_tid = smb_buffer_response->Tid; } @@ -3323,7 +3445,7 @@ cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb) int xid; struct cifsSesInfo *ses = NULL; struct task_struct *cifsd_task; - char * tmp; + char *tmp; xid = GetXid(); @@ -3344,9 +3466,9 @@ cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb) FreeXid(xid); return 0; } else if (rc == -ESHUTDOWN) { - cFYI(1,("Waking up socket by sending it signal")); + cFYI(1, ("Waking up socket by sending signal")); if (cifsd_task) { - send_sig(SIGKILL,cifsd_task,1); + force_sig(SIGKILL, cifsd_task); kthread_stop(cifsd_task); } rc = 0; @@ -3355,7 +3477,7 @@ cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb) } else cFYI(1, ("No session or bad tcon")); } - + cifs_sb->tcon = NULL; tmp = cifs_sb->prepath; cifs_sb->prepathlen = 0; @@ -3367,11 +3489,11 @@ cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb) sesInfoFree(ses); FreeXid(xid); - return rc; /* BB check if we should always return zero here */ -} + return rc; /* BB check if we should always return zero here */ +} int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, - struct nls_table * nls_info) + struct nls_table *nls_info) { int rc = 0; char ntlm_session_key[CIFS_SESS_KEY_SIZE]; @@ -3379,16 +3501,16 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, int first_time = 0; /* what if server changes its buffer size after dropping the session? */ - if(pSesInfo->server->maxBuf == 0) /* no need to send on reconnect */ { + if (pSesInfo->server->maxBuf == 0) /* no need to send on reconnect */ { rc = CIFSSMBNegotiate(xid, pSesInfo); - if(rc == -EAGAIN) /* retry only once on 1st time connection */ { + if (rc == -EAGAIN) /* retry only once on 1st time connection */ { rc = CIFSSMBNegotiate(xid, pSesInfo); - if(rc == -EAGAIN) + if (rc == -EAGAIN) rc = -EHOSTDOWN; } - if(rc == 0) { + if (rc == 0) { spin_lock(&GlobalMid_Lock); - if(pSesInfo->server->tcpStatus != CifsExiting) + if (pSesInfo->server->tcpStatus != CifsExiting) pSesInfo->server->tcpStatus = CifsGood; else rc = -EHOSTDOWN; @@ -3400,18 +3522,19 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, if (!rc) { pSesInfo->flags = 0; pSesInfo->capabilities = pSesInfo->server->capabilities; - if(linuxExtEnabled == 0) + if (linuxExtEnabled == 0) pSesInfo->capabilities &= (~CAP_UNIX); /* pSesInfo->sequence_number = 0;*/ - cFYI(1,("Security Mode: 0x%x Capabilities: 0x%x TimeAdjust: %d", + cFYI(1, + ("Security Mode: 0x%x Capabilities: 0x%x TimeAdjust: %d", pSesInfo->server->secMode, pSesInfo->server->capabilities, pSesInfo->server->timeAdj)); - if(experimEnabled < 2) + if (experimEnabled < 2) rc = CIFS_SessSetup(xid, pSesInfo, first_time, nls_info); else if (extended_security - && (pSesInfo->capabilities + && (pSesInfo->capabilities & CAP_EXTENDED_SECURITY) && (pSesInfo->server->secType == NTLMSSP)) { rc = -EOPNOTSUPP; @@ -3424,21 +3547,22 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, &ntlmv2_flag, nls_info); if (!rc) { - if(ntlmv2_flag) { - char * v2_response; - cFYI(1,("more secure NTLM ver2 hash")); - if(CalcNTLMv2_partial_mac_key(pSesInfo, + if (ntlmv2_flag) { + char *v2_response; + cFYI(1, ("more secure NTLM ver2 hash")); + if (CalcNTLMv2_partial_mac_key(pSesInfo, nls_info)) { rc = -ENOMEM; goto ss_err_exit; } else v2_response = kmalloc(16 + 64 /* blob */, GFP_KERNEL); - if(v2_response) { - CalcNTLMv2_response(pSesInfo,v2_response); - /* if(first_time) - cifs_calculate_ntlmv2_mac_key( - pSesInfo->server->mac_signing_key, - response, ntlm_session_key, */ + if (v2_response) { + CalcNTLMv2_response(pSesInfo, + v2_response); + /* if (first_time) + cifs_calculate_ntlmv2_mac_key( + pSesInfo->server->mac_signing_key, + response, ntlm_session_key,*/ kfree(v2_response); /* BB Put dummy sig in SessSetup PDU? */ } else { @@ -3451,9 +3575,9 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, pSesInfo->server->cryptKey, ntlm_session_key); - if(first_time) + if (first_time) cifs_calculate_mac_key( - pSesInfo->server->mac_signing_key, + &pSesInfo->server->mac_signing_key, ntlm_session_key, pSesInfo->password); } @@ -3471,18 +3595,18 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, pSesInfo->server->cryptKey, ntlm_session_key); - if(first_time) + if (first_time) cifs_calculate_mac_key( - pSesInfo->server->mac_signing_key, + &pSesInfo->server->mac_signing_key, ntlm_session_key, pSesInfo->password); rc = CIFSSessSetup(xid, pSesInfo, ntlm_session_key, nls_info); } if (rc) { - cERROR(1,("Send error in SessSetup = %d",rc)); + cERROR(1, ("Send error in SessSetup = %d", rc)); } else { - cFYI(1,("CIFS Session Established successfully")); + cFYI(1, ("CIFS Session Established successfully")); pSesInfo->status = CifsGood; } } diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index 8e86aaceb68..4830acc86d7 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -135,10 +135,10 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode, struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; char *full_path = NULL; - FILE_ALL_INFO * buf = NULL; + FILE_ALL_INFO *buf = NULL; struct inode *newinode = NULL; - struct cifsFileInfo * pCifsFile = NULL; - struct cifsInodeInfo * pCifsInode; + struct cifsFileInfo *pCifsFile = NULL; + struct cifsInodeInfo *pCifsInode; int disposition = FILE_OVERWRITE_IF; int write_only = FALSE; @@ -207,8 +207,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode, } else { /* If Open reported that we actually created a file then we now have to set the mode if possible */ - if ((cifs_sb->tcon->ses->capabilities & CAP_UNIX) && - (oplock & CIFS_CREATE_ACTION)) { + if ((pTcon->unix_ext) && (oplock & CIFS_CREATE_ACTION)) { mode &= ~current->fs->umask; if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) { CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode, @@ -235,8 +234,8 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode, /* Could set r/o dos attribute if mode & 0222 == 0 */ } - /* BB server might mask mode so we have to query for Unix case*/ - if (pTcon->ses->capabilities & CAP_UNIX) + /* server might mask mode so we have to query for it */ + if (pTcon->unix_ext) rc = cifs_get_inode_info_unix(&newinode, full_path, inode->i_sb, xid); else { @@ -264,7 +263,8 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode, direntry->d_op = &cifs_dentry_ops; d_instantiate(direntry, newinode); } - if ((nd->flags & LOOKUP_OPEN) == FALSE) { + if ((nd == NULL /* nfsd case - nfs srv does not set nd */) || + ((nd->flags & LOOKUP_OPEN) == FALSE)) { /* mknod case - do not leave file open */ CIFSSMBClose(xid, pTcon, fileHandle); } else if (newinode) { @@ -323,7 +323,7 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode, struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; char *full_path = NULL; - struct inode * newinode = NULL; + struct inode *newinode = NULL; if (!old_valid_dev(device_number)) return -EINVAL; @@ -336,7 +336,7 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode, full_path = build_path_from_dentry(direntry); if (full_path == NULL) rc = -ENOMEM; - else if (pTcon->ses->capabilities & CAP_UNIX) { + else if (pTcon->unix_ext) { mode &= ~current->fs->umask; if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) { rc = CIFSSMBUnixSetPerms(xid, pTcon, full_path, @@ -490,7 +490,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, cFYI(1, (" Full path: %s inode = 0x%p", full_path, direntry->d_inode)); - if (pTcon->ses->capabilities & CAP_UNIX) + if (pTcon->unix_ext) rc = cifs_get_inode_info_unix(&newInode, full_path, parent_dir_inode->i_sb, xid); else diff --git a/fs/cifs/export.c b/fs/cifs/export.c index 96df1d51fdc..893fd0aebff 100644 --- a/fs/cifs/export.c +++ b/fs/cifs/export.c @@ -5,7 +5,7 @@ * Author(s): Steve French (sfrench@us.ibm.com) * * Common Internet FileSystem (CIFS) client - * + * * Operations related to support for exporting files via NFSD * * This library is free software; you can redistribute it and/or modify @@ -22,32 +22,45 @@ * along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ - - /* + + /* * See Documentation/filesystems/Exporting * and examples in fs/exportfs + * + * Since cifs is a network file system, an "fsid" must be included for + * any nfs exports file entries which refer to cifs paths. In addition + * the cifs mount must be mounted with the "serverino" option (ie use stable + * server inode numbers instead of locally generated temporary ones). + * Although cifs inodes do not use generation numbers (have generation number + * of zero) - the inode number alone should be good enough for simple cases + * in which users want to export cifs shares with NFS. The decode and encode + * could be improved by using a new routine which expects 64 bit inode numbers + * instead of the default 32 bit routines in fs/exportfs + * */ #include <linux/fs.h> #include <linux/exportfs.h> - +#include "cifsglob.h" +#include "cifs_debug.h" + #ifdef CONFIG_CIFS_EXPERIMENTAL - static struct dentry *cifs_get_parent(struct dentry *dentry) { - /* BB need to add code here eventually to enable export via NFSD */ - return ERR_PTR(-EACCES); + /* BB need to add code here eventually to enable export via NFSD */ + cFYI(1, ("get parent for %p", dentry)); + return ERR_PTR(-EACCES); } - + struct export_operations cifs_export_ops = { - .get_parent = cifs_get_parent, -/* Following five export operations are unneeded so far and can default */ -/* .get_dentry = - .get_name = - .find_exported_dentry = - .decode_fh = - .encode_fs = */ - }; - + .get_parent = cifs_get_parent, +/* Following five export operations are unneeded so far and can default: + .get_dentry = + .get_name = + .find_exported_dentry = + .decode_fh = + .encode_fs = */ +}; + #endif /* EXPERIMENTAL */ - + diff --git a/fs/cifs/fcntl.c b/fs/cifs/fcntl.c index 8e375bb4b37..995474c9088 100644 --- a/fs/cifs/fcntl.c +++ b/fs/cifs/fcntl.c @@ -66,7 +66,7 @@ static __u32 convert_to_cifs_notify_flags(unsigned long fcntl_notify_flags) return cifs_ntfy_flags; } -int cifs_dir_notify(struct file * file, unsigned long arg) +int cifs_dir_notify(struct file *file, unsigned long arg) { int xid; int rc = -EINVAL; diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 94d5b49049d..e13592afca9 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -2,8 +2,8 @@ * fs/cifs/file.c * * vfs operations that deal with files - * - * Copyright (C) International Business Machines Corp., 2002,2003 + * + * Copyright (C) International Business Machines Corp., 2002,2007 * Author(s): Steve French (sfrench@us.ibm.com) * Jeremy Allison (jra@samba.org) * @@ -45,7 +45,7 @@ static inline struct cifsFileInfo *cifs_init_private( { memset(private_data, 0, sizeof(struct cifsFileInfo)); private_data->netfid = netfid; - private_data->pid = current->tgid; + private_data->pid = current->tgid; init_MUTEX(&private_data->fh_sem); mutex_init(&private_data->lock_mutex); INIT_LIST_HEAD(&private_data->llist); @@ -57,7 +57,7 @@ static inline struct cifsFileInfo *cifs_init_private( does not tell us which handle the write is for so there can be a close (overlapping with write) of the filehandle that cifs_writepages chose to use */ - atomic_set(&private_data->wrtPending,0); + atomic_set(&private_data->wrtPending, 0); return private_data; } @@ -105,7 +105,7 @@ static inline int cifs_open_inode_helper(struct inode *inode, struct file *file, in the list so we do not have to walk the list to search for one in prepare_write */ if ((file->f_flags & O_ACCMODE) == O_WRONLY) { - list_add_tail(&pCifsFile->flist, + list_add_tail(&pCifsFile->flist, &pCifsInode->openFileList); } else { list_add(&pCifsFile->flist, @@ -138,7 +138,7 @@ static inline int cifs_open_inode_helper(struct inode *inode, struct file *file, } client_can_cache: - if (pTcon->ses->capabilities & CAP_UNIX) + if (pTcon->unix_ext) rc = cifs_get_inode_info_unix(&file->f_path.dentry->d_inode, full_path, inode->i_sb, xid); else @@ -189,7 +189,7 @@ int cifs_open(struct inode *inode, struct file *file) /* needed for writepage */ pCifsFile->pfile = file; - + file->private_data = pCifsFile; break; } @@ -212,15 +212,15 @@ int cifs_open(struct inode *inode, struct file *file) return -ENOMEM; } - cFYI(1, (" inode = 0x%p file flags are 0x%x for %s", + cFYI(1, ("inode = 0x%p file flags are 0x%x for %s", inode, file->f_flags, full_path)); desiredAccess = cifs_convert_flags(file->f_flags); /********************************************************************* * open flag mapping table: - * + * * POSIX Flag CIFS Disposition - * ---------- ---------------- + * ---------- ---------------- * O_CREAT FILE_OPEN_IF * O_CREAT | O_EXCL FILE_CREATE * O_CREAT | O_TRUNC FILE_OVERWRITE_IF @@ -228,12 +228,12 @@ int cifs_open(struct inode *inode, struct file *file) * none of the above FILE_OPEN * * Note that there is not a direct match between disposition - * FILE_SUPERSEDE (ie create whether or not file exists although + * FILE_SUPERSEDE (ie create whether or not file exists although * O_CREAT | O_TRUNC is similar but truncates the existing * file rather than creating a new file as FILE_SUPERSEDE does * (which uses the attributes / metadata passed in on open call) *? - *? O_SYNC is a reasonable match to CIFS writethrough flag + *? O_SYNC is a reasonable match to CIFS writethrough flag *? and the read write flags match reasonably. O_LARGEFILE *? is irrelevant because largefile support is always used *? by this client. Flags O_APPEND, O_DIRECT, O_DIRECTORY, @@ -253,8 +253,8 @@ int cifs_open(struct inode *inode, struct file *file) and calling get_inode_info with returned buf (at least helps non-Unix server case) */ - /* BB we can not do this if this is the second open of a file - and the first handle has writebehind data, we might be + /* BB we can not do this if this is the second open of a file + and the first handle has writebehind data, we might be able to simply do a filemap_fdatawrite/filemap_fdatawait first */ buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL); if (!buf) { @@ -263,7 +263,7 @@ int cifs_open(struct inode *inode, struct file *file) } if (cifs_sb->tcon->ses->capabilities & CAP_NT_SMBS) - rc = CIFSSMBOpen(xid, pTcon, full_path, disposition, + rc = CIFSSMBOpen(xid, pTcon, full_path, disposition, desiredAccess, CREATE_NOT_DIR, &netfid, &oplock, buf, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); @@ -300,15 +300,15 @@ int cifs_open(struct inode *inode, struct file *file) write_unlock(&GlobalSMBSeslock); } - if (oplock & CIFS_CREATE_ACTION) { + if (oplock & CIFS_CREATE_ACTION) { /* time to set mode which we can not set earlier due to problems creating new read-only files */ - if (cifs_sb->tcon->ses->capabilities & CAP_UNIX) { + if (pTcon->unix_ext) { CIFSSMBUnixSetPerms(xid, pTcon, full_path, inode->i_mode, (__u64)-1, (__u64)-1, 0 /* dev */, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); } else { /* BB implement via Windows security descriptors eg @@ -345,7 +345,7 @@ static int cifs_reopen_file(struct file *file, int can_flush) struct cifsTconInfo *pTcon; struct cifsFileInfo *pCifsFile; struct cifsInodeInfo *pCifsInode; - struct inode * inode; + struct inode *inode; char *full_path = NULL; int desiredAccess; int disposition = FILE_OPEN; @@ -372,13 +372,13 @@ static int cifs_reopen_file(struct file *file, int can_flush) } inode = file->f_path.dentry->d_inode; - if(inode == NULL) { + if (inode == NULL) { cERROR(1, ("inode not valid")); dump_stack(); rc = -EBADF; goto reopen_error_exit; } - + cifs_sb = CIFS_SB(inode->i_sb); pTcon = cifs_sb->tcon; @@ -396,7 +396,7 @@ reopen_error_exit: } cFYI(1, ("inode = 0x%p file flags 0x%x for %s", - inode, file->f_flags,full_path)); + inode, file->f_flags, full_path)); desiredAccess = cifs_convert_flags(file->f_flags); if (oplockEnabled) @@ -405,14 +405,14 @@ reopen_error_exit: oplock = FALSE; /* Can not refresh inode by passing in file_info buf to be returned - by SMBOpen and then calling get_inode_info with returned buf - since file might have write behind data that needs to be flushed + by SMBOpen and then calling get_inode_info with returned buf + since file might have write behind data that needs to be flushed and server version of file size can be stale. If we knew for sure that inode was not dirty locally we could do this */ rc = CIFSSMBOpen(xid, pTcon, full_path, disposition, desiredAccess, CREATE_NOT_DIR, &netfid, &oplock, NULL, - cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & + cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); if (rc) { up(&pCifsFile->fh_sem); @@ -430,7 +430,7 @@ reopen_error_exit: go to server to get inode info */ pCifsInode->clientCanCacheAll = FALSE; pCifsInode->clientCanCacheRead = FALSE; - if (pTcon->ses->capabilities & CAP_UNIX) + if (pTcon->unix_ext) rc = cifs_get_inode_info_unix(&inode, full_path, inode->i_sb, xid); else @@ -486,23 +486,24 @@ int cifs_close(struct inode *inode, struct file *file) already closed */ if (pTcon->tidStatus != CifsNeedReconnect) { int timeout = 2; - while((atomic_read(&pSMBFile->wrtPending) != 0) + while ((atomic_read(&pSMBFile->wrtPending) != 0) && (timeout < 1000) ) { /* Give write a better chance to get to server ahead of the close. We do not want to add a wait_q here as it would increase the memory utilization as the struct would be in each open file, - but this should give enough time to + but this should give enough time to clear the socket */ #ifdef CONFIG_CIFS_DEBUG2 - cFYI(1,("close delay, write pending")); + cFYI(1, ("close delay, write pending")); #endif /* DEBUG2 */ msleep(timeout); timeout *= 4; } - if(atomic_read(&pSMBFile->wrtPending)) - cERROR(1,("close with pending writes")); + if (atomic_read(&pSMBFile->wrtPending)) + cERROR(1, + ("close with pending writes")); rc = CIFSSMBClose(xid, pTcon, pSMBFile->netfid); } @@ -534,7 +535,7 @@ int cifs_close(struct inode *inode, struct file *file) CIFS_I(inode)->clientCanCacheRead = FALSE; CIFS_I(inode)->clientCanCacheAll = FALSE; } - if ((rc ==0) && CIFS_I(inode)->write_behind_rc) + if ((rc == 0) && CIFS_I(inode)->write_behind_rc) rc = CIFS_I(inode)->write_behind_rc; FreeXid(xid); return rc; @@ -554,7 +555,8 @@ int cifs_closedir(struct inode *inode, struct file *file) if (pCFileStruct) { struct cifsTconInfo *pTcon; - struct cifs_sb_info *cifs_sb = CIFS_SB(file->f_path.dentry->d_sb); + struct cifs_sb_info *cifs_sb = + CIFS_SB(file->f_path.dentry->d_sb); pTcon = cifs_sb->tcon; @@ -572,7 +574,7 @@ int cifs_closedir(struct inode *inode, struct file *file) if (ptmp) { cFYI(1, ("closedir free smb buf in srch struct")); pCFileStruct->srch_inf.ntwrk_buf_start = NULL; - if(pCFileStruct->srch_inf.smallBuf) + if (pCFileStruct->srch_inf.smallBuf) cifs_small_buf_release(ptmp); else cifs_buf_release(ptmp); @@ -594,7 +596,8 @@ int cifs_closedir(struct inode *inode, struct file *file) static int store_file_lock(struct cifsFileInfo *fid, __u64 len, __u64 offset, __u8 lockType) { - struct cifsLockInfo *li = kmalloc(sizeof(struct cifsLockInfo), GFP_KERNEL); + struct cifsLockInfo *li = + kmalloc(sizeof(struct cifsLockInfo), GFP_KERNEL); if (li == NULL) return -ENOMEM; li->offset = offset; @@ -625,8 +628,8 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock) cFYI(1, ("Lock parm: 0x%x flockflags: " "0x%x flocktype: 0x%x start: %lld end: %lld", - cmd, pfLock->fl_flags, pfLock->fl_type, pfLock->fl_start, - pfLock->fl_end)); + cmd, pfLock->fl_flags, pfLock->fl_type, pfLock->fl_start, + pfLock->fl_end)); if (pfLock->fl_flags & FL_POSIX) cFYI(1, ("Posix")); @@ -641,7 +644,7 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock) "not implemented yet")); if (pfLock->fl_flags & FL_LEASE) cFYI(1, ("Lease on file - not implemented yet")); - if (pfLock->fl_flags & + if (pfLock->fl_flags & (~(FL_POSIX | FL_FLOCK | FL_SLEEP | FL_ACCESS | FL_LEASE))) cFYI(1, ("Unknown lock flags 0x%x", pfLock->fl_flags)); @@ -683,9 +686,9 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock) account for negative length which we can not accept over the wire */ if (IS_GETLK(cmd)) { - if(posix_locking) { + if (posix_locking) { int posix_lock_type; - if(lockType & LOCKING_ANDX_SHARED_LOCK) + if (lockType & LOCKING_ANDX_SHARED_LOCK) posix_lock_type = CIFS_RDLCK; else posix_lock_type = CIFS_WRLCK; @@ -700,7 +703,7 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock) rc = CIFSSMBLock(xid, pTcon, netfid, length, pfLock->fl_start, 0, 1, lockType, 0 /* wait flag */ ); if (rc == 0) { - rc = CIFSSMBLock(xid, pTcon, netfid, length, + rc = CIFSSMBLock(xid, pTcon, netfid, length, pfLock->fl_start, 1 /* numUnlock */ , 0 /* numLock */ , lockType, 0 /* wait flag */ ); @@ -729,22 +732,24 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock) if (posix_locking) { int posix_lock_type; - if(lockType & LOCKING_ANDX_SHARED_LOCK) + if (lockType & LOCKING_ANDX_SHARED_LOCK) posix_lock_type = CIFS_RDLCK; else posix_lock_type = CIFS_WRLCK; - - if(numUnlock == 1) + + if (numUnlock == 1) posix_lock_type = CIFS_UNLCK; rc = CIFSSMBPosixLock(xid, pTcon, netfid, 0 /* set */, length, pfLock, posix_lock_type, wait_flag); } else { - struct cifsFileInfo *fid = (struct cifsFileInfo *)file->private_data; + struct cifsFileInfo *fid = + (struct cifsFileInfo *)file->private_data; if (numLock) { - rc = CIFSSMBLock(xid, pTcon, netfid, length, pfLock->fl_start, + rc = CIFSSMBLock(xid, pTcon, netfid, length, + pfLock->fl_start, 0, numLock, lockType, wait_flag); if (rc == 0) { @@ -763,7 +768,8 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock) list_for_each_entry_safe(li, tmp, &fid->llist, llist) { if (pfLock->fl_start <= li->offset && length >= li->length) { - stored_rc = CIFSSMBLock(xid, pTcon, netfid, + stored_rc = CIFSSMBLock(xid, pTcon, + netfid, li->length, li->offset, 1, 0, li->type, FALSE); if (stored_rc) @@ -805,7 +811,7 @@ ssize_t cifs_user_write(struct file *file, const char __user *write_data, if (file->private_data == NULL) return -EBADF; open_file = (struct cifsFileInfo *) file->private_data; - + xid = GetXid(); if (*poffset > file->f_path.dentry->d_inode->i_size) @@ -824,7 +830,7 @@ ssize_t cifs_user_write(struct file *file, const char __user *write_data, and blocked, and the file has been freed on us while we blocked so return what we managed to write */ return total_written; - } + } if (open_file->closePend) { FreeXid(xid); if (total_written) @@ -867,8 +873,8 @@ ssize_t cifs_user_write(struct file *file, const char __user *write_data, /* since the write may have blocked check these pointers again */ if ((file->f_path.dentry) && (file->f_path.dentry->d_inode)) { struct inode *inode = file->f_path.dentry->d_inode; -/* Do not update local mtime - server will set its actual value on write - * inode->i_ctime = inode->i_mtime = +/* Do not update local mtime - server will set its actual value on write + * inode->i_ctime = inode->i_mtime = * current_fs_time(inode->i_sb);*/ if (total_written > 0) { spin_lock(&inode->i_lock); @@ -877,7 +883,7 @@ ssize_t cifs_user_write(struct file *file, const char __user *write_data, *poffset); spin_unlock(&inode->i_lock); } - mark_inode_dirty_sync(file->f_path.dentry->d_inode); + mark_inode_dirty_sync(file->f_path.dentry->d_inode); } FreeXid(xid); return total_written; @@ -898,13 +904,13 @@ static ssize_t cifs_write(struct file *file, const char *write_data, pTcon = cifs_sb->tcon; - cFYI(1,("write %zd bytes to offset %lld of %s", write_size, + cFYI(1, ("write %zd bytes to offset %lld of %s", write_size, *poffset, file->f_path.dentry->d_name.name)); if (file->private_data == NULL) return -EBADF; open_file = (struct cifsFileInfo *)file->private_data; - + xid = GetXid(); if (*poffset > file->f_path.dentry->d_inode->i_size) @@ -921,10 +927,10 @@ static ssize_t cifs_write(struct file *file, const char *write_data, FreeXid(xid); /* if we have gotten here we have written some data and blocked, and the file has been freed on us - while we blocked so return what we managed to + while we blocked so return what we managed to write */ return total_written; - } + } if (open_file->closePend) { FreeXid(xid); if (total_written) @@ -935,14 +941,14 @@ static ssize_t cifs_write(struct file *file, const char *write_data, if (open_file->invalidHandle) { /* we could deadlock if we called filemap_fdatawait from here so tell - reopen_file not to flush data to + reopen_file not to flush data to server now */ rc = cifs_reopen_file(file, FALSE); if (rc != 0) break; } - if(experimEnabled || (pTcon->ses->server && - ((pTcon->ses->server->secMode & + if (experimEnabled || (pTcon->ses->server && + ((pTcon->ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) == 0))) { struct kvec iov[2]; @@ -976,7 +982,7 @@ static ssize_t cifs_write(struct file *file, const char *write_data, } } else *poffset += bytes_written; - long_op = FALSE; /* subsequent writes fast - + long_op = FALSE; /* subsequent writes fast - 15 seconds is plenty */ } @@ -1009,8 +1015,8 @@ struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *cifs_inode) the VFS or MM) should not happen but we had reports of on oops (due to it being zero) during stress testcases so we need to check for it */ - if(cifs_inode == NULL) { - cERROR(1,("Null inode passed to cifs_writeable_file")); + if (cifs_inode == NULL) { + cERROR(1, ("Null inode passed to cifs_writeable_file")); dump_stack(); return NULL; } @@ -1024,13 +1030,14 @@ struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *cifs_inode) (open_file->pfile->f_flags & O_WRONLY))) { atomic_inc(&open_file->wrtPending); read_unlock(&GlobalSMBSeslock); - if((open_file->invalidHandle) && + if ((open_file->invalidHandle) && (!open_file->closePend) /* BB fixme -since the second clause can not be true remove it BB */) { rc = cifs_reopen_file(open_file->pfile, FALSE); /* if it fails, try another handle - might be */ /* dangerous to hold up writepages with retry */ - if(rc) { - cFYI(1,("failed on reopen file in wp")); + if (rc) { + cFYI(1, + ("failed on reopen file in wp")); read_lock(&GlobalSMBSeslock); /* can not use this handle, no write pending on this one after all */ @@ -1082,7 +1089,7 @@ static int cifs_partialpagewrite(struct page *page, unsigned from, unsigned to) /* check to make sure that we are not extending the file */ if (mapping->host->i_size - offset < (loff_t)to) - to = (unsigned)(mapping->host->i_size - offset); + to = (unsigned)(mapping->host->i_size - offset); open_file = find_writable_file(CIFS_I(mapping->host)); if (open_file) { @@ -1116,8 +1123,8 @@ static int cifs_writepages(struct address_space *mapping, int done = 0; pgoff_t end; pgoff_t index; - int range_whole = 0; - struct kvec * iov; + int range_whole = 0; + struct kvec *iov; int len; int n_iov = 0; pgoff_t next; @@ -1131,7 +1138,7 @@ static int cifs_writepages(struct address_space *mapping, int xid; cifs_sb = CIFS_SB(mapping->host->i_sb); - + /* * If wsize is smaller that the page cache size, default to writing * one page at a time via cifs_writepage @@ -1139,14 +1146,14 @@ static int cifs_writepages(struct address_space *mapping, if (cifs_sb->wsize < PAGE_CACHE_SIZE) return generic_writepages(mapping, wbc); - if((cifs_sb->tcon->ses) && (cifs_sb->tcon->ses->server)) - if(cifs_sb->tcon->ses->server->secMode & - (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) - if(!experimEnabled) + if ((cifs_sb->tcon->ses) && (cifs_sb->tcon->ses->server)) + if (cifs_sb->tcon->ses->server->secMode & + (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) + if (!experimEnabled) return generic_writepages(mapping, wbc); iov = kmalloc(32 * sizeof(struct kvec), GFP_KERNEL); - if(iov == NULL) + if (iov == NULL) return generic_writepages(mapping, wbc); @@ -1279,7 +1286,7 @@ retry: 1); atomic_dec(&open_file->wrtPending); if (rc || bytes_written < bytes_to_write) { - cERROR(1,("Write2 ret %d, written = %d", + cERROR(1, ("Write2 ret %d, wrote %d", rc, bytes_written)); /* BB what if continued retry is requested via mount flags? */ @@ -1295,8 +1302,8 @@ retry: success rc but too little data written? */ /* BB investigate retry logic on temporary server crash cases and how recovery works - when page marked as error */ - if(rc) + when page marked as error */ + if (rc) SetPageError(page); kunmap(page); unlock_page(page); @@ -1326,7 +1333,7 @@ retry: return rc; } -static int cifs_writepage(struct page* page, struct writeback_control *wbc) +static int cifs_writepage(struct page *page, struct writeback_control *wbc) { int rc = -EFAULT; int xid; @@ -1334,7 +1341,7 @@ static int cifs_writepage(struct page* page, struct writeback_control *wbc) xid = GetXid(); /* BB add check for wbc flags */ page_cache_get(page); - if (!PageUptodate(page)) { + if (!PageUptodate(page)) { cFYI(1, ("ppw - page not up to date")); } @@ -1348,7 +1355,7 @@ static int cifs_writepage(struct page* page, struct writeback_control *wbc) * Just unlocking the page will cause the radix tree tag-bits * to fail to update with the state of the page correctly. */ - set_page_writeback(page); + set_page_writeback(page); rc = cifs_partialpagewrite(page, 0, PAGE_CACHE_SIZE); SetPageUptodate(page); /* BB add check for error and Clearuptodate? */ unlock_page(page); @@ -1368,7 +1375,7 @@ static int cifs_commit_write(struct file *file, struct page *page, char *page_data; xid = GetXid(); - cFYI(1, ("commit write for page %p up to position %lld for %d", + cFYI(1, ("commit write for page %p up to position %lld for %d", page, position, to)); spin_lock(&inode->i_lock); if (position > inode->i_size) { @@ -1396,7 +1403,7 @@ static int cifs_commit_write(struct file *file, struct page *page, rc = 0; /* else if (rc < 0) should we set writebehind rc? */ kunmap(page); - } else { + } else { set_page_dirty(page); } @@ -1412,9 +1419,9 @@ int cifs_fsync(struct file *file, struct dentry *dentry, int datasync) xid = GetXid(); - cFYI(1, ("Sync file - name: %s datasync: 0x%x", + cFYI(1, ("Sync file - name: %s datasync: 0x%x", dentry->d_name.name, datasync)); - + rc = filemap_fdatawrite(inode->i_mapping); if (rc == 0) CIFS_I(inode)->write_behind_rc = 0; @@ -1438,7 +1445,7 @@ int cifs_fsync(struct file *file, struct dentry *dentry, int datasync) if (!inode) return; */ -/* fill in rpages then +/* fill in rpages then result = cifs_pagein_inode(inode, index, rpages); */ /* BB finish */ /* cFYI(1, ("rpages is %d for sync page of Index %ld", rpages, index)); @@ -1456,7 +1463,7 @@ int cifs_fsync(struct file *file, struct dentry *dentry, int datasync) */ int cifs_flush(struct file *file, fl_owner_t id) { - struct inode * inode = file->f_path.dentry->d_inode; + struct inode *inode = file->f_path.dentry->d_inode; int rc = 0; /* Rather than do the steps manually: @@ -1471,8 +1478,8 @@ int cifs_flush(struct file *file, fl_owner_t id) rc = filemap_fdatawrite(inode->i_mapping); if (!rc) /* reset wb rc if we were able to write out dirty pages */ CIFS_I(inode)->write_behind_rc = 0; - - cFYI(1, ("Flush inode %p file %p rc %d",inode,file,rc)); + + cFYI(1, ("Flush inode %p file %p rc %d", inode, file, rc)); return rc; } @@ -1508,13 +1515,13 @@ ssize_t cifs_user_read(struct file *file, char __user *read_data, for (total_read = 0, current_offset = read_data; read_size > total_read; total_read += bytes_read, current_offset += bytes_read) { - current_read_size = min_t(const int, read_size - total_read, + current_read_size = min_t(const int, read_size - total_read, cifs_sb->rsize); rc = -EAGAIN; smb_read_data = NULL; while (rc == -EAGAIN) { int buf_type = CIFS_NO_BUFFER; - if ((open_file->invalidHandle) && + if ((open_file->invalidHandle) && (!open_file->closePend)) { rc = cifs_reopen_file(file, TRUE); if (rc != 0) @@ -1535,9 +1542,9 @@ ssize_t cifs_user_read(struct file *file, char __user *read_data, rc = -EFAULT; } - if(buf_type == CIFS_SMALL_BUFFER) + if (buf_type == CIFS_SMALL_BUFFER) cifs_small_buf_release(smb_read_data); - else if(buf_type == CIFS_LARGE_BUFFER) + else if (buf_type == CIFS_LARGE_BUFFER) cifs_buf_release(smb_read_data); smb_read_data = NULL; } @@ -1586,21 +1593,21 @@ static ssize_t cifs_read(struct file *file, char *read_data, size_t read_size, if ((file->f_flags & O_ACCMODE) == O_WRONLY) cFYI(1, ("attempting read on write only file instance")); - for (total_read = 0, current_offset = read_data; + for (total_read = 0, current_offset = read_data; read_size > total_read; total_read += bytes_read, current_offset += bytes_read) { current_read_size = min_t(const int, read_size - total_read, cifs_sb->rsize); /* For windows me and 9x we do not want to request more than it negotiated since it will refuse the read then */ - if((pTcon->ses) && + if ((pTcon->ses) && !(pTcon->ses->capabilities & CAP_LARGE_FILES)) { current_read_size = min_t(const int, current_read_size, pTcon->ses->server->maxBuf - 128); } rc = -EAGAIN; while (rc == -EAGAIN) { - if ((open_file->invalidHandle) && + if ((open_file->invalidHandle) && (!open_file->closePend)) { rc = cifs_reopen_file(file, TRUE); if (rc != 0) @@ -1646,7 +1653,7 @@ int cifs_file_mmap(struct file *file, struct vm_area_struct *vma) } -static void cifs_copy_cache_pages(struct address_space *mapping, +static void cifs_copy_cache_pages(struct address_space *mapping, struct list_head *pages, int bytes_read, char *data, struct pagevec *plru_pvec) { @@ -1669,12 +1676,12 @@ static void cifs_copy_cache_pages(struct address_space *mapping, continue; } - target = kmap_atomic(page,KM_USER0); + target = kmap_atomic(page, KM_USER0); if (PAGE_CACHE_SIZE > bytes_read) { memcpy(target, data, bytes_read); /* zero the tail end of this partial page */ - memset(target + bytes_read, 0, + memset(target + bytes_read, 0, PAGE_CACHE_SIZE - bytes_read); bytes_read = 0; } else { @@ -1703,7 +1710,7 @@ static int cifs_readpages(struct file *file, struct address_space *mapping, struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; int bytes_read = 0; - unsigned int read_size,i; + unsigned int read_size, i; char *smb_read_data = NULL; struct smb_com_read_rsp *pSMBr; struct pagevec lru_pvec; @@ -1720,7 +1727,9 @@ static int cifs_readpages(struct file *file, struct address_space *mapping, pTcon = cifs_sb->tcon; pagevec_init(&lru_pvec, 0); - +#ifdef CONFIG_CIFS_DEBUG2 + cFYI(1, ("rpages: num pages %d", num_pages)); +#endif for (i = 0; i < num_pages; ) { unsigned contig_pages; struct page *tmp_page; @@ -1734,14 +1743,14 @@ static int cifs_readpages(struct file *file, struct address_space *mapping, /* count adjacent pages that we will read into */ contig_pages = 0; - expected_index = + expected_index = list_entry(page_list->prev, struct page, lru)->index; - list_for_each_entry_reverse(tmp_page,page_list,lru) { + list_for_each_entry_reverse(tmp_page, page_list, lru) { if (tmp_page->index == expected_index) { contig_pages++; expected_index++; } else - break; + break; } if (contig_pages + i > num_pages) contig_pages = num_pages - i; @@ -1753,10 +1762,13 @@ static int cifs_readpages(struct file *file, struct address_space *mapping, /* Read size needs to be in multiples of one page */ read_size = min_t(const unsigned int, read_size, cifs_sb->rsize & PAGE_CACHE_MASK); - +#ifdef CONFIG_CIFS_DEBUG2 + cFYI(1, ("rpages: read size 0x%x contiguous pages %d", + read_size, contig_pages)); +#endif rc = -EAGAIN; while (rc == -EAGAIN) { - if ((open_file->invalidHandle) && + if ((open_file->invalidHandle) && (!open_file->closePend)) { rc = cifs_reopen_file(file, TRUE); if (rc != 0) @@ -1769,11 +1781,11 @@ static int cifs_readpages(struct file *file, struct address_space *mapping, &bytes_read, &smb_read_data, &buf_type); /* BB more RC checks ? */ - if (rc== -EAGAIN) { + if (rc == -EAGAIN) { if (smb_read_data) { - if(buf_type == CIFS_SMALL_BUFFER) + if (buf_type == CIFS_SMALL_BUFFER) cifs_small_buf_release(smb_read_data); - else if(buf_type == CIFS_LARGE_BUFFER) + else if (buf_type == CIFS_LARGE_BUFFER) cifs_buf_release(smb_read_data); smb_read_data = NULL; } @@ -1794,10 +1806,10 @@ static int cifs_readpages(struct file *file, struct address_space *mapping, if ((int)(bytes_read & PAGE_CACHE_MASK) != bytes_read) { i++; /* account for partial page */ - /* server copy of file can have smaller size + /* server copy of file can have smaller size than client */ - /* BB do we need to verify this common case ? - this case is ok - if we are at server EOF + /* BB do we need to verify this common case ? + this case is ok - if we are at server EOF we will hit it on next read */ /* break; */ @@ -1806,14 +1818,14 @@ static int cifs_readpages(struct file *file, struct address_space *mapping, cFYI(1, ("No bytes read (%d) at offset %lld . " "Cleaning remaining pages from readahead list", bytes_read, offset)); - /* BB turn off caching and do new lookup on + /* BB turn off caching and do new lookup on file size at server? */ break; } if (smb_read_data) { - if(buf_type == CIFS_SMALL_BUFFER) + if (buf_type == CIFS_SMALL_BUFFER) cifs_small_buf_release(smb_read_data); - else if(buf_type == CIFS_LARGE_BUFFER) + else if (buf_type == CIFS_LARGE_BUFFER) cifs_buf_release(smb_read_data); smb_read_data = NULL; } @@ -1824,12 +1836,12 @@ static int cifs_readpages(struct file *file, struct address_space *mapping, /* need to free smb_read_data buf before exit */ if (smb_read_data) { - if(buf_type == CIFS_SMALL_BUFFER) + if (buf_type == CIFS_SMALL_BUFFER) cifs_small_buf_release(smb_read_data); - else if(buf_type == CIFS_LARGE_BUFFER) + else if (buf_type == CIFS_LARGE_BUFFER) cifs_buf_release(smb_read_data); smb_read_data = NULL; - } + } FreeXid(xid); return rc; @@ -1844,26 +1856,26 @@ static int cifs_readpage_worker(struct file *file, struct page *page, page_cache_get(page); read_data = kmap(page); /* for reads over a certain size could initiate async read ahead */ - + rc = cifs_read(file, read_data, PAGE_CACHE_SIZE, poffset); - + if (rc < 0) goto io_error; else - cFYI(1, ("Bytes read %d",rc)); - + cFYI(1, ("Bytes read %d", rc)); + file->f_path.dentry->d_inode->i_atime = current_fs_time(file->f_path.dentry->d_inode->i_sb); - + if (PAGE_CACHE_SIZE > rc) memset(read_data + rc, 0, PAGE_CACHE_SIZE - rc); flush_dcache_page(page); SetPageUptodate(page); rc = 0; - + io_error: - kunmap(page); + kunmap(page); page_cache_release(page); return rc; } @@ -1881,7 +1893,7 @@ static int cifs_readpage(struct file *file, struct page *page) return -EBADF; } - cFYI(1, ("readpage %p at offset %d 0x%x\n", + cFYI(1, ("readpage %p at offset %d 0x%x\n", page, (int)offset, (int)offset)); rc = cifs_readpage_worker(file, page, &offset); @@ -1895,7 +1907,7 @@ static int cifs_readpage(struct file *file, struct page *page) /* We do not want to update the file size from server for inodes open for write - to avoid races with writepage extending the file - in the future we could consider allowing - refreshing the inode only on increases in the file size + refreshing the inode only on increases in the file size but this is tricky to do without racing with writebehind page caching in the current Linux kernel design */ int is_size_safe_to_change(struct cifsInodeInfo *cifsInode, __u64 end_of_file) @@ -1904,8 +1916,8 @@ int is_size_safe_to_change(struct cifsInodeInfo *cifsInode, __u64 end_of_file) if (cifsInode) open_file = find_writable_file(cifsInode); - - if(open_file) { + + if (open_file) { struct cifs_sb_info *cifs_sb; /* there is not actually a write pending so let @@ -1915,12 +1927,12 @@ int is_size_safe_to_change(struct cifsInodeInfo *cifsInode, __u64 end_of_file) cifs_sb = CIFS_SB(cifsInode->vfs_inode.i_sb); if ( cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO ) { - /* since no page cache to corrupt on directio + /* since no page cache to corrupt on directio we can change size safely */ return 1; } - if(i_size_read(&cifsInode->vfs_inode) < end_of_file) + if (i_size_read(&cifsInode->vfs_inode) < end_of_file) return 1; return 0; @@ -1935,7 +1947,7 @@ static int cifs_prepare_write(struct file *file, struct page *page, loff_t i_size; loff_t offset; - cFYI(1, ("prepare write for page %p from %d to %d",page,from,to)); + cFYI(1, ("prepare write for page %p from %d to %d", page, from, to)); if (PageUptodate(page)) return 0; @@ -1955,14 +1967,7 @@ static int cifs_prepare_write(struct file *file, struct page *page, * We don't need to read data beyond the end of the file. * zero it, and set the page uptodate */ - void *kaddr = kmap_atomic(page, KM_USER0); - - if (from) - memset(kaddr, 0, from); - if (to < PAGE_CACHE_SIZE) - memset(kaddr + to, 0, PAGE_CACHE_SIZE - to); - flush_dcache_page(page); - kunmap_atomic(kaddr, KM_USER0); + simple_prepare_write(file, page, from, to); SetPageUptodate(page); } else if ((file->f_flags & O_ACCMODE) != O_WRONLY) { /* might as well read a page, it is fast enough */ @@ -1974,8 +1979,8 @@ static int cifs_prepare_write(struct file *file, struct page *page, this will be written out by commit_write so is fine */ } - /* we do not need to pass errors back - e.g. if we do not have read access to the file + /* we do not need to pass errors back + e.g. if we do not have read access to the file because cifs_commit_write will do the right thing. -- shaggy */ return 0; diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index f0ff12b3f39..dd4167762a8 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -57,14 +57,14 @@ int cifs_get_inode_info_unix(struct inode **pinode, if (tmp_path == NULL) { return -ENOMEM; } - /* have to skip first of the double backslash of + /* have to skip first of the double backslash of UNC name */ strncpy(tmp_path, pTcon->treeName, MAX_TREE_SIZE); strncat(tmp_path, search_path, MAX_PATHCONF); rc = connect_to_dfs_path(xid, pTcon->ses, /* treename + */ tmp_path, - cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); kfree(tmp_path); @@ -81,7 +81,7 @@ int cifs_get_inode_info_unix(struct inode **pinode, /* get new inode */ if (*pinode == NULL) { *pinode = new_inode(sb); - if (*pinode == NULL) + if (*pinode == NULL) return -ENOMEM; /* Is an i_ino of zero legal? */ /* Are there sanity checks we can use to ensure that @@ -92,7 +92,7 @@ int cifs_get_inode_info_unix(struct inode **pinode, } /* note ino incremented to unique num in new_inode */ if (sb->s_flags & MS_NOATIME) (*pinode)->i_flags |= S_NOATIME | S_NOCMTIME; - + insert_inode_hash(*pinode); } @@ -103,7 +103,7 @@ int cifs_get_inode_info_unix(struct inode **pinode, cifsInfo->time = jiffies; cFYI(1, ("New time %ld", cifsInfo->time)); /* this is ok to set on every inode revalidate */ - atomic_set(&cifsInfo->inUse,1); + atomic_set(&cifsInfo->inUse, 1); inode->i_atime = cifs_NTtimeToUnix(le64_to_cpu(findData.LastAccessTime)); @@ -114,8 +114,8 @@ int cifs_get_inode_info_unix(struct inode **pinode, cifs_NTtimeToUnix(le64_to_cpu(findData.LastStatusChange)); inode->i_mode = le64_to_cpu(findData.Permissions); /* since we set the inode type below we need to mask off - to avoid strange results if bits set above */ - inode->i_mode &= ~S_IFMT; + to avoid strange results if bits set above */ + inode->i_mode &= ~S_IFMT; if (type == UNIX_FILE) { inode->i_mode |= S_IFREG; } else if (type == UNIX_SYMLINK) { @@ -137,9 +137,9 @@ int cifs_get_inode_info_unix(struct inode **pinode, } else { /* safest to call it a file if we do not know */ inode->i_mode |= S_IFREG; - cFYI(1,("unknown type %d",type)); + cFYI(1, ("unknown type %d", type)); } - + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) inode->i_uid = cifs_sb->mnt_uid; else @@ -149,7 +149,7 @@ int cifs_get_inode_info_unix(struct inode **pinode, inode->i_gid = cifs_sb->mnt_gid; else inode->i_gid = le64_to_cpu(findData.Gid); - + inode->i_nlink = le64_to_cpu(findData.Nlinks); spin_lock(&inode->i_lock); @@ -183,17 +183,17 @@ int cifs_get_inode_info_unix(struct inode **pinode, inode->i_op = &cifs_file_inode_ops; if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) - inode->i_fop = + inode->i_fop = &cifs_file_direct_nobrl_ops; else inode->i_fop = &cifs_file_direct_ops; } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) inode->i_fop = &cifs_file_nobrl_ops; - else /* not direct, send byte range locks */ + else /* not direct, send byte range locks */ inode->i_fop = &cifs_file_ops; /* check if server can support readpages */ - if (pTcon->ses->server->maxBuf < + if (pTcon->ses->server->maxBuf < PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE) inode->i_data.a_ops = &cifs_addr_ops_smallbuf; else @@ -215,7 +215,7 @@ int cifs_get_inode_info_unix(struct inode **pinode, return rc; } -static int decode_sfu_inode(struct inode * inode, __u64 size, +static int decode_sfu_inode(struct inode *inode, __u64 size, const unsigned char *path, struct cifs_sb_info *cifs_sb, int xid) { @@ -225,7 +225,7 @@ static int decode_sfu_inode(struct inode * inode, __u64 size, struct cifsTconInfo *pTcon = cifs_sb->tcon; char buf[24]; unsigned int bytes_read; - char * pbuf; + char *pbuf; pbuf = buf; @@ -235,22 +235,22 @@ static int decode_sfu_inode(struct inode * inode, __u64 size, } else if (size < 8) { return -EINVAL; /* EOPNOTSUPP? */ } - + rc = CIFSSMBOpen(xid, pTcon, path, FILE_OPEN, GENERIC_READ, CREATE_NOT_DIR, &netfid, &oplock, NULL, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - if (rc==0) { + if (rc == 0) { int buf_type = CIFS_NO_BUFFER; /* Read header */ rc = CIFSSMBRead(xid, pTcon, - netfid, + netfid, 24 /* length */, 0 /* offset */, &bytes_read, &pbuf, &buf_type); if ((rc == 0) && (bytes_read >= 8)) { if (memcmp("IntxBLK", pbuf, 8) == 0) { - cFYI(1,("Block device")); + cFYI(1, ("Block device")); inode->i_mode |= S_IFBLK; if (bytes_read == 24) { /* we have enough to decode dev num */ @@ -261,7 +261,7 @@ static int decode_sfu_inode(struct inode * inode, __u64 size, inode->i_rdev = MKDEV(mjr, mnr); } } else if (memcmp("IntxCHR", pbuf, 8) == 0) { - cFYI(1,("Char device")); + cFYI(1, ("Char device")); inode->i_mode |= S_IFCHR; if (bytes_read == 24) { /* we have enough to decode dev num */ @@ -270,27 +270,26 @@ static int decode_sfu_inode(struct inode * inode, __u64 size, mjr = le64_to_cpu(*(__le64 *)(pbuf+8)); mnr = le64_to_cpu(*(__le64 *)(pbuf+16)); inode->i_rdev = MKDEV(mjr, mnr); - } + } } else if (memcmp("IntxLNK", pbuf, 7) == 0) { - cFYI(1,("Symlink")); + cFYI(1, ("Symlink")); inode->i_mode |= S_IFLNK; } else { inode->i_mode |= S_IFREG; /* file? */ - rc = -EOPNOTSUPP; + rc = -EOPNOTSUPP; } } else { inode->i_mode |= S_IFREG; /* then it is a file */ - rc = -EOPNOTSUPP; /* or some unknown SFU type */ - } + rc = -EOPNOTSUPP; /* or some unknown SFU type */ + } CIFSSMBClose(xid, pTcon, netfid); } return rc; - } #define SFBITS_MASK (S_ISVTX | S_ISGID | S_ISUID) /* SETFILEBITS valid bits */ -static int get_sfu_uid_mode(struct inode * inode, +static int get_sfu_uid_mode(struct inode *inode, const unsigned char *path, struct cifs_sb_info *cifs_sb, int xid) { @@ -301,15 +300,15 @@ static int get_sfu_uid_mode(struct inode * inode, rc = CIFSSMBQueryEA(xid, cifs_sb->tcon, path, "SETFILEBITS", ea_value, 4 /* size of buf */, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); if (rc < 0) return (int)rc; else if (rc > 3) { mode = le32_to_cpu(*((__le32 *)ea_value)); - inode->i_mode &= ~SFBITS_MASK; - cFYI(1,("special bits 0%o org mode 0%o", mode, inode->i_mode)); + inode->i_mode &= ~SFBITS_MASK; + cFYI(1, ("special bits 0%o org mode 0%o", mode, inode->i_mode)); inode->i_mode = (mode & SFBITS_MASK) | inode->i_mode; - cFYI(1,("special mode bits 0%o", mode)); + cFYI(1, ("special mode bits 0%o", mode)); return 0; } else { return 0; @@ -317,8 +316,6 @@ static int get_sfu_uid_mode(struct inode * inode, #else return -EOPNOTSUPP; #endif - - } int cifs_get_inode_info(struct inode **pinode, @@ -334,11 +331,11 @@ int cifs_get_inode_info(struct inode **pinode, int adjustTZ = FALSE; pTcon = cifs_sb->tcon; - cFYI(1,("Getting info on %s", search_path)); + cFYI(1, ("Getting info on %s", search_path)); if ((pfindData == NULL) && (*pinode != NULL)) { if (CIFS_I(*pinode)->clientCanCacheRead) { - cFYI(1,("No need to revalidate cached inode sizes")); + cFYI(1, ("No need to revalidate cached inode sizes")); return rc; } } @@ -359,12 +356,11 @@ int cifs_get_inode_info(struct inode **pinode, failed at least once - set flag in tcon or mount */ if ((rc == -EOPNOTSUPP) || (rc == -EINVAL)) { rc = SMBQueryInformation(xid, pTcon, search_path, - pfindData, cifs_sb->local_nls, + pfindData, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); adjustTZ = TRUE; } - } /* dump_mem("\nQPathInfo return data",&findData, sizeof(findData)); */ if (rc) { @@ -384,8 +380,8 @@ int cifs_get_inode_info(struct inode **pinode, strncat(tmp_path, search_path, MAX_PATHCONF); rc = connect_to_dfs_path(xid, pTcon->ses, /* treename + */ tmp_path, - cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); kfree(tmp_path); /* BB fix up inode etc. */ @@ -419,17 +415,17 @@ int cifs_get_inode_info(struct inode **pinode, there Windows server or network appliances for which IndexNumber field is not guaranteed unique? */ - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM){ + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) { int rc1 = 0; __u64 inode_num; - rc1 = CIFSGetSrvInodeNumber(xid, pTcon, - search_path, &inode_num, + rc1 = CIFSGetSrvInodeNumber(xid, pTcon, + search_path, &inode_num, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); if (rc1) { - cFYI(1,("GetSrvInodeNum rc %d", rc1)); + cFYI(1, ("GetSrvInodeNum rc %d", rc1)); /* BB EOPNOSUPP disable SERVER_INUM? */ } else /* do we need cast or hash to ino? */ (*pinode)->i_ino = inode_num; @@ -463,7 +459,7 @@ int cifs_get_inode_info(struct inode **pinode, cFYI(0, ("Attributes came in as 0x%x", attr)); if (adjustTZ && (pTcon->ses) && (pTcon->ses->server)) { inode->i_ctime.tv_sec += pTcon->ses->server->timeAdj; - inode->i_mtime.tv_sec += pTcon->ses->server->timeAdj; + inode->i_mtime.tv_sec += pTcon->ses->server->timeAdj; } /* set default mode. will override for dirs below */ @@ -471,8 +467,9 @@ int cifs_get_inode_info(struct inode **pinode, /* new inode, can safely set these fields */ inode->i_mode = cifs_sb->mnt_file_mode; else /* since we set the inode type below we need to mask off - to avoid strange results if type changes and both get orred in */ - inode->i_mode &= ~S_IFMT; + to avoid strange results if type changes and both + get orred in */ + inode->i_mode &= ~S_IFMT; /* if (attr & ATTR_REPARSE) */ /* We no longer handle these as symlinks because we could not follow them due to the absolute path with drive letter */ @@ -490,13 +487,13 @@ int cifs_get_inode_info(struct inode **pinode, /* BB Finish for SFU style symlinks and devices */ } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) && (cifsInfo->cifsAttrs & ATTR_SYSTEM)) { - if (decode_sfu_inode(inode, + if (decode_sfu_inode(inode, le64_to_cpu(pfindData->EndOfFile), search_path, cifs_sb, xid)) { - cFYI(1,("Unrecognized sfu inode type")); + cFYI(1, ("Unrecognized sfu inode type")); } - cFYI(1,("sfu mode 0%o",inode->i_mode)); + cFYI(1, ("sfu mode 0%o", inode->i_mode)); } else { inode->i_mode |= S_IFREG; /* treat the dos attribute of read-only as read-only @@ -512,12 +509,12 @@ int cifs_get_inode_info(struct inode **pinode, /* BB add code here - validate if device or weird share or device type? */ } - + spin_lock(&inode->i_lock); if (is_size_safe_to_change(cifsInfo, le64_to_cpu(pfindData->EndOfFile))) { /* can not safely shrink the file size here if the client is writing to it due to potential races */ - i_size_write(inode,le64_to_cpu(pfindData->EndOfFile)); + i_size_write(inode, le64_to_cpu(pfindData->EndOfFile)); /* 512 bytes (2**9) is the fake blocksize that must be used for this calculation */ @@ -528,7 +525,7 @@ int cifs_get_inode_info(struct inode **pinode, inode->i_nlink = le32_to_cpu(pfindData->NumberOfLinks); - /* BB fill in uid and gid here? with help from winbind? + /* BB fill in uid and gid here? with help from winbind? or retrieve from NTFS stream extended attribute */ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) { /* fill in uid, gid, mode from server ACL */ @@ -540,7 +537,7 @@ int cifs_get_inode_info(struct inode **pinode, inode->i_gid = cifs_sb->mnt_gid; /* set so we do not keep refreshing these fields with bad data after user has changed them in memory */ - atomic_set(&cifsInfo->inUse,1); + atomic_set(&cifsInfo->inUse, 1); } if (S_ISREG(inode->i_mode)) { @@ -557,7 +554,7 @@ int cifs_get_inode_info(struct inode **pinode, else /* not direct, send byte range locks */ inode->i_fop = &cifs_file_ops; - if (pTcon->ses->server->maxBuf < + if (pTcon->ses->server->maxBuf < PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE) inode->i_data.a_ops = &cifs_addr_ops_smallbuf; else @@ -586,10 +583,11 @@ void cifs_read_inode(struct inode *inode) cifs_sb = CIFS_SB(inode->i_sb); xid = GetXid(); - if (cifs_sb->tcon->ses->capabilities & CAP_UNIX) - cifs_get_inode_info_unix(&inode, "", inode->i_sb,xid); + + if (cifs_sb->tcon->unix_ext) + cifs_get_inode_info_unix(&inode, "", inode->i_sb, xid); else - cifs_get_inode_info(&inode, "", NULL, inode->i_sb,xid); + cifs_get_inode_info(&inode, "", NULL, inode->i_sb, xid); /* can not call macro FreeXid here since in a void func */ _FreeXid(xid); } @@ -623,9 +621,21 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry) FreeXid(xid); return -ENOMEM; } - rc = CIFSSMBDelFile(xid, pTcon, full_path, cifs_sb->local_nls, + + if ((pTcon->ses->capabilities & CAP_UNIX) && + (CIFS_UNIX_POSIX_PATH_OPS_CAP & + le64_to_cpu(pTcon->fsUnixInfo.Capability))) { + rc = CIFSPOSIXDelFile(xid, pTcon, full_path, + SMB_POSIX_UNLINK_FILE_TARGET, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); + cFYI(1, ("posix del rc %d", rc)); + if ((rc == 0) || (rc == -ENOENT)) + goto psx_del_no_retry; + } + rc = CIFSSMBDelFile(xid, pTcon, full_path, cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); +psx_del_no_retry: if (!rc) { if (direntry->d_inode) drop_nlink(direntry->d_inode); @@ -638,12 +648,12 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry) rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN, DELETE, CREATE_NOT_DIR | CREATE_DELETE_ON_CLOSE, &netfid, &oplock, NULL, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - if (rc==0) { + if (rc == 0) { CIFSSMBRenameOpenFile(xid, pTcon, netfid, NULL, - cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); CIFSSMBClose(xid, pTcon, netfid); if (direntry->d_inode) @@ -659,7 +669,7 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry) rc = CIFSSMBSetTimes(xid, pTcon, full_path, pinfo_buf, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); else rc = -EOPNOTSUPP; @@ -670,7 +680,7 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry) /* rc = CIFSSMBSetAttrLegacy(xid, pTcon, full_path, (__u16)ATTR_NORMAL, - cifs_sb->local_nls); + cifs_sb->local_nls); For some strange reason it seems that NT4 eats the old setattr call without actually setting the attributes so on to the third attempted workaround @@ -683,9 +693,9 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry) FILE_WRITE_ATTRIBUTES, 0, &netfid, &oplock, NULL, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - if (rc==0) { + if (rc == 0) { rc = CIFSSMBSetFileTimes(xid, pTcon, pinfo_buf, netfid); @@ -694,10 +704,10 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry) } kfree(pinfo_buf); } - if (rc==0) { - rc = CIFSSMBDelFile(xid, pTcon, full_path, - cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + if (rc == 0) { + rc = CIFSSMBDelFile(xid, pTcon, full_path, + cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); if (!rc) { if (direntry->d_inode) @@ -711,10 +721,10 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry) CREATE_NOT_DIR | CREATE_DELETE_ON_CLOSE, &netfid, &oplock, NULL, - cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - if (rc==0) { + if (rc == 0) { CIFSSMBRenameOpenFile(xid, pTcon, netfid, NULL, cifs_sb->local_nls, @@ -773,8 +783,8 @@ static void posix_fill_in_inode(struct inode *tmp_inode, tmp_inode->i_mode = le64_to_cpu(pData->Permissions); /* since we set the inode type below we need to mask off type - to avoid strange results if bits above were corrupt */ - tmp_inode->i_mode &= ~S_IFMT; + to avoid strange results if bits above were corrupt */ + tmp_inode->i_mode &= ~S_IFMT; if (type == UNIX_FILE) { *pobject_type = DT_REG; tmp_inode->i_mode |= S_IFREG; @@ -804,11 +814,11 @@ static void posix_fill_in_inode(struct inode *tmp_inode, /* safest to just call it a file */ *pobject_type = DT_REG; tmp_inode->i_mode |= S_IFREG; - cFYI(1,("unknown inode type %d",type)); + cFYI(1, ("unknown inode type %d", type)); } #ifdef CONFIG_CIFS_DEBUG2 - cFYI(1,("object type: %d", type)); + cFYI(1, ("object type: %d", type)); #endif tmp_inode->i_uid = le64_to_cpu(pData->Uid); tmp_inode->i_gid = le64_to_cpu(pData->Gid); @@ -816,7 +826,7 @@ static void posix_fill_in_inode(struct inode *tmp_inode, spin_lock(&tmp_inode->i_lock); if (is_size_safe_to_change(cifsInfo, end_of_file)) { - /* can not safely change the file size here if the + /* can not safely change the file size here if the client is writing to it due to potential races */ i_size_write(tmp_inode, end_of_file); @@ -830,27 +840,28 @@ static void posix_fill_in_inode(struct inode *tmp_inode, cFYI(1, ("File inode")); tmp_inode->i_op = &cifs_file_inode_ops; - if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { - if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) tmp_inode->i_fop = &cifs_file_direct_nobrl_ops; else tmp_inode->i_fop = &cifs_file_direct_ops; - - } else if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) + + } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) tmp_inode->i_fop = &cifs_file_nobrl_ops; else tmp_inode->i_fop = &cifs_file_ops; - if((cifs_sb->tcon) && (cifs_sb->tcon->ses) && - (cifs_sb->tcon->ses->server->maxBuf < + if ((cifs_sb->tcon) && (cifs_sb->tcon->ses) && + (cifs_sb->tcon->ses->server->maxBuf < PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE)) tmp_inode->i_data.a_ops = &cifs_addr_ops_smallbuf; else tmp_inode->i_data.a_ops = &cifs_addr_ops; - if(isNewInode) - return; /* No sense invalidating pages for new inode since we - have not started caching readahead file data yet */ + if (isNewInode) + return; /* No sense invalidating pages for new inode + since we we have not started caching + readahead file data yet */ if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) && (local_size == tmp_inode->i_size)) { @@ -869,10 +880,10 @@ static void posix_fill_in_inode(struct inode *tmp_inode, tmp_inode->i_op = &cifs_symlink_inode_ops; /* tmp_inode->i_fop = *//* do not need to set to anything */ } else { - cFYI(1, ("Special inode")); + cFYI(1, ("Special inode")); init_special_inode(tmp_inode, tmp_inode->i_mode, tmp_inode->i_rdev); - } + } } int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) @@ -896,22 +907,22 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) FreeXid(xid); return -ENOMEM; } - - if((pTcon->ses->capabilities & CAP_UNIX) && - (CIFS_UNIX_POSIX_PATH_OPS_CAP & + + if ((pTcon->ses->capabilities & CAP_UNIX) && + (CIFS_UNIX_POSIX_PATH_OPS_CAP & le64_to_cpu(pTcon->fsUnixInfo.Capability))) { u32 oplock = 0; - FILE_UNIX_BASIC_INFO * pInfo = + FILE_UNIX_BASIC_INFO * pInfo = kzalloc(sizeof(FILE_UNIX_BASIC_INFO), GFP_KERNEL); - if(pInfo == NULL) { + if (pInfo == NULL) { rc = -ENOMEM; goto mkdir_out; } - + rc = CIFSPOSIXCreate(xid, pTcon, SMB_O_DIRECTORY | SMB_O_CREAT, mode, NULL /* netfid */, pInfo, &oplock, - full_path, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + full_path, cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); if (rc) { cFYI(1, ("posix mkdir returned 0x%x", rc)); @@ -919,8 +930,9 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) } else { int obj_type; if (pInfo->Type == -1) /* no return info - go query */ - goto mkdir_get_info; -/*BB check (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID ) to see if need to set uid/gid */ + goto mkdir_get_info; +/*BB check (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID ) to see if need + to set uid/gid */ inc_nlink(inode); if (pTcon->nocase) direntry->d_op = &cifs_ci_dentry_ops; @@ -937,7 +949,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) newinode->i_ino = (unsigned long)pInfo->UniqueId; } /* note ino incremented to unique num in new_inode */ - if(inode->i_sb->s_flags & MS_NOATIME) + if (inode->i_sb->s_flags & MS_NOATIME) newinode->i_flags |= S_NOATIME | S_NOCMTIME; newinode->i_nlink = 2; @@ -949,18 +961,18 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) posix_fill_in_inode(direntry->d_inode, pInfo, &obj_type, 1 /* NewInode */); #ifdef CONFIG_CIFS_DEBUG2 - cFYI(1,("instantiated dentry %p %s to inode %p", + cFYI(1, ("instantiated dentry %p %s to inode %p", direntry, direntry->d_name.name, newinode)); - if(newinode->i_nlink != 2) - cFYI(1,("unexpected number of links %d", + if (newinode->i_nlink != 2) + cFYI(1, ("unexpected number of links %d", newinode->i_nlink)); #endif } kfree(pInfo); goto mkdir_out; - } - + } + /* BB add setting the equivalent of mode via CreateX w/ACLs */ rc = CIFSSMBMkDir(xid, pTcon, full_path, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); @@ -968,14 +980,14 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) cFYI(1, ("cifs_mkdir returned 0x%x", rc)); d_drop(direntry); } else { -mkdir_get_info: +mkdir_get_info: inc_nlink(inode); - if (pTcon->ses->capabilities & CAP_UNIX) + if (pTcon->unix_ext) rc = cifs_get_inode_info_unix(&newinode, full_path, - inode->i_sb,xid); + inode->i_sb, xid); else rc = cifs_get_inode_info(&newinode, full_path, NULL, - inode->i_sb,xid); + inode->i_sb, xid); if (pTcon->nocase) direntry->d_op = &cifs_ci_dentry_ops; @@ -983,10 +995,10 @@ mkdir_get_info: direntry->d_op = &cifs_dentry_ops; d_instantiate(direntry, newinode); /* setting nlink not necessary except in cases where we - * failed to get it from the server or was set bogus */ + * failed to get it from the server or was set bogus */ if ((direntry->d_inode) && (direntry->d_inode->i_nlink < 2)) - direntry->d_inode->i_nlink = 2; - if (cifs_sb->tcon->ses->capabilities & CAP_UNIX) { + direntry->d_inode->i_nlink = 2; + if (pTcon->unix_ext) { mode &= ~current->fs->umask; if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) { CIFSSMBUnixSetPerms(xid, pTcon, full_path, @@ -1002,27 +1014,27 @@ mkdir_get_info: mode, (__u64)-1, (__u64)-1, 0 /* dev_t */, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); } } else { /* BB to be implemented via Windows secrty descriptors eg CIFSSMBWinSetPerms(xid, pTcon, full_path, mode, -1, -1, local_nls); */ - if(direntry->d_inode) { + if (direntry->d_inode) { direntry->d_inode->i_mode = mode; direntry->d_inode->i_mode |= S_IFDIR; - if(cifs_sb->mnt_cifs_flags & + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) { - direntry->d_inode->i_uid = + direntry->d_inode->i_uid = current->fsuid; - direntry->d_inode->i_gid = + direntry->d_inode->i_gid = current->fsgid; } } } } -mkdir_out: +mkdir_out: kfree(full_path); FreeXid(xid); return rc; @@ -1056,7 +1068,7 @@ int cifs_rmdir(struct inode *inode, struct dentry *direntry) if (!rc) { drop_nlink(inode); spin_lock(&direntry->d_inode->i_lock); - i_size_write(direntry->d_inode,0); + i_size_write(direntry->d_inode, 0); clear_nlink(direntry->d_inode); spin_unlock(&direntry->d_inode->i_lock); } @@ -1119,9 +1131,9 @@ int cifs_rename(struct inode *source_inode, struct dentry *source_direntry, kmalloc(2 * sizeof(FILE_UNIX_BASIC_INFO), GFP_KERNEL); if (info_buf_source != NULL) { info_buf_target = info_buf_source + 1; - if (pTcon->ses->capabilities & CAP_UNIX) + if (pTcon->unix_ext) rc = CIFSSMBUnixQPathInfo(xid, pTcon, fromName, - info_buf_source, + info_buf_source, cifs_sb_source->local_nls, cifs_sb_source->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); @@ -1171,12 +1183,12 @@ int cifs_rename(struct inode *source_inode, struct dentry *source_direntry, might not right be right access to request */ rc = CIFSSMBOpen(xid, pTcon, fromName, FILE_OPEN, GENERIC_READ, CREATE_NOT_DIR, &netfid, &oplock, NULL, - cifs_sb_source->local_nls, - cifs_sb_source->mnt_cifs_flags & + cifs_sb_source->local_nls, + cifs_sb_source->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - if (rc==0) { + if (rc == 0) { rc = CIFSSMBRenameOpenFile(xid, pTcon, netfid, toName, - cifs_sb_source->local_nls, + cifs_sb_source->local_nls, cifs_sb_source->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); CIFSSMBClose(xid, pTcon, netfid); @@ -1247,9 +1259,9 @@ int cifs_revalidate(struct dentry *direntry) local_mtime = direntry->d_inode->i_mtime; local_size = direntry->d_inode->i_size; - if (cifs_sb->tcon->ses->capabilities & CAP_UNIX) { + if (cifs_sb->tcon->unix_ext) { rc = cifs_get_inode_info_unix(&direntry->d_inode, full_path, - direntry->d_sb,xid); + direntry->d_sb, xid); if (rc) { cFYI(1, ("error on getting revalidate info %d", rc)); /* if (rc != -ENOENT) @@ -1258,7 +1270,7 @@ int cifs_revalidate(struct dentry *direntry) } } else { rc = cifs_get_inode_info(&direntry->d_inode, full_path, NULL, - direntry->d_sb,xid); + direntry->d_sb, xid); if (rc) { cFYI(1, ("error on getting revalidate info %d", rc)); /* if (rc != -ENOENT) @@ -1271,7 +1283,7 @@ int cifs_revalidate(struct dentry *direntry) /* if not oplocked, we invalidate inode pages if mtime or file size had changed on server */ - if (timespec_equal(&local_mtime,&direntry->d_inode->i_mtime) && + if (timespec_equal(&local_mtime, &direntry->d_inode->i_mtime) && (local_size == direntry->d_inode->i_size)) { cFYI(1, ("cifs_revalidate - inode unchanged")); } else { @@ -1298,7 +1310,7 @@ int cifs_revalidate(struct dentry *direntry) if (invalidate_inode) { /* shrink_dcache not necessary now that cifs dentry ops are exported for negative dentries */ -/* if(S_ISDIR(direntry->d_inode->i_mode)) +/* if (S_ISDIR(direntry->d_inode->i_mode)) shrink_dcache_parent(direntry); */ if (S_ISREG(direntry->d_inode->i_mode)) { if (direntry->d_inode->i_mapping) @@ -1313,7 +1325,7 @@ int cifs_revalidate(struct dentry *direntry) } } /* mutex_unlock(&direntry->d_inode->i_mutex); */ - + kfree(full_path); FreeXid(xid); return rc; @@ -1335,23 +1347,19 @@ static int cifs_truncate_page(struct address_space *mapping, loff_t from) pgoff_t index = from >> PAGE_CACHE_SHIFT; unsigned offset = from & (PAGE_CACHE_SIZE - 1); struct page *page; - char *kaddr; int rc = 0; page = grab_cache_page(mapping, index); if (!page) return -ENOMEM; - kaddr = kmap_atomic(page, KM_USER0); - memset(kaddr + offset, 0, PAGE_CACHE_SIZE - offset); - flush_dcache_page(page); - kunmap_atomic(kaddr, KM_USER0); + zero_user_page(page, offset, PAGE_CACHE_SIZE - offset, KM_USER0); unlock_page(page); page_cache_release(page); return rc; } -static int cifs_vmtruncate(struct inode * inode, loff_t offset) +static int cifs_vmtruncate(struct inode *inode, loff_t offset) { struct address_space *mapping = inode->i_mapping; unsigned long limit; @@ -1424,13 +1432,13 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM) == 0) { /* check if we have permission to change attrs */ rc = inode_change_ok(direntry->d_inode, attrs); - if(rc < 0) { + if (rc < 0) { FreeXid(xid); return rc; } else rc = 0; } - + full_path = build_path_from_dentry(direntry); if (full_path == NULL) { FreeXid(xid); @@ -1459,16 +1467,16 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) rc = CIFSSMBSetFileSize(xid, pTcon, attrs->ia_size, nfid, npid, FALSE); atomic_dec(&open_file->wrtPending); - cFYI(1,("SetFSize for attrs rc = %d", rc)); - if((rc == -EINVAL) || (rc == -EOPNOTSUPP)) { + cFYI(1, ("SetFSize for attrs rc = %d", rc)); + if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) { int bytes_written; rc = CIFSSMBWrite(xid, pTcon, nfid, 0, attrs->ia_size, &bytes_written, NULL, NULL, 1 /* 45 seconds */); - cFYI(1,("Wrt seteof rc %d", rc)); + cFYI(1, ("Wrt seteof rc %d", rc)); } - } else + } else rc = -EINVAL; if (rc != 0) { @@ -1478,11 +1486,11 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) it by handle */ rc = CIFSSMBSetEOF(xid, pTcon, full_path, attrs->ia_size, FALSE, - cifs_sb->local_nls, + cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); cFYI(1, ("SetEOF by path (setattrs) rc = %d", rc)); - if((rc == -EINVAL) || (rc == -EOPNOTSUPP)) { + if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) { __u16 netfid; int oplock = FALSE; @@ -1493,14 +1501,14 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) NULL, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - if (rc==0) { + if (rc == 0) { int bytes_written; rc = CIFSSMBWrite(xid, pTcon, netfid, 0, attrs->ia_size, &bytes_written, NULL, NULL, 1 /* 45 sec */); - cFYI(1,("wrt seteof rc %d",rc)); + cFYI(1, ("wrt seteof rc %d", rc)); CIFSSMBClose(xid, pTcon, netfid); } @@ -1517,7 +1525,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) rc = cifs_vmtruncate(direntry->d_inode, attrs->ia_size); cifs_truncate_page(direntry->d_inode->i_mapping, direntry->d_inode->i_size); - } else + } else goto cifs_setattr_exit; } if (attrs->ia_valid & ATTR_UID) { @@ -1535,11 +1543,11 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) mode = attrs->ia_mode; } - if ((cifs_sb->tcon->ses->capabilities & CAP_UNIX) + if ((pTcon->unix_ext) && (attrs->ia_valid & (ATTR_MODE | ATTR_GID | ATTR_UID))) rc = CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode, uid, gid, 0 /* dev_t */, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); else if (attrs->ia_valid & ATTR_MODE) { rc = 0; @@ -1559,7 +1567,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) time_buf.Attributes = cpu_to_le32(cifsInode->cifsAttrs & (~ATTR_READONLY)); /* Windows ignores set to zero */ - if(time_buf.Attributes == 0) + if (time_buf.Attributes == 0) time_buf.Attributes |= cpu_to_le32(ATTR_NORMAL); } /* BB to be implemented - @@ -1585,7 +1593,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) stamps are changed explicitly (i.e. by utime() since we would then have a mix of client and server times */ - + if (set_time && (attrs->ia_valid & ATTR_CTIME)) { set_time = TRUE; /* Although Samba throws this field away @@ -1624,7 +1632,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) NULL, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - if (rc==0) { + if (rc == 0) { rc = CIFSSMBSetFileTimes(xid, pTcon, &time_buf, netfid); CIFSSMBClose(xid, pTcon, netfid); @@ -1634,7 +1642,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) granularity */ /* rc = CIFSSMBSetTimesLegacy(xid, pTcon, full_path, - &time_buf, cifs_sb->local_nls); */ + &time_buf, cifs_sb->local_nls); */ } } /* Even if error on time set, no sense failing the call if @@ -1642,7 +1650,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) and this check ensures that we are not being called from sys_utimes in which case we ought to fail the call back to the user when the server rejects the call */ - if((rc) && (attrs->ia_valid & + if ((rc) && (attrs->ia_valid & (ATTR_MODE | ATTR_GID | ATTR_UID | ATTR_SIZE))) rc = 0; } diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c index a414f1775ae..d24fe6880a0 100644 --- a/fs/cifs/ioctl.c +++ b/fs/cifs/ioctl.c @@ -3,7 +3,7 @@ * * vfs operations that deal with io control * - * Copyright (C) International Business Machines Corp., 2005 + * Copyright (C) International Business Machines Corp., 2005,2007 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify @@ -30,7 +30,7 @@ #define CIFS_IOC_CHECKUMOUNT _IO(0xCF, 2) -int cifs_ioctl (struct inode * inode, struct file * filep, +int cifs_ioctl (struct inode *inode, struct file *filep, unsigned int command, unsigned long arg) { int rc = -ENOTTY; /* strange error - but the precedent */ diff --git a/fs/cifs/link.c b/fs/cifs/link.c index 6baea85d726..6a85ef7b879 100644 --- a/fs/cifs/link.c +++ b/fs/cifs/link.c @@ -50,32 +50,33 @@ cifs_hardlink(struct dentry *old_file, struct inode *inode, fromName = build_path_from_dentry(old_file); toName = build_path_from_dentry(direntry); - if((fromName == NULL) || (toName == NULL)) { + if ((fromName == NULL) || (toName == NULL)) { rc = -ENOMEM; goto cifs_hl_exit; } - if (cifs_sb_target->tcon->ses->capabilities & CAP_UNIX) +/* if (cifs_sb_target->tcon->ses->capabilities & CAP_UNIX)*/ + if (pTcon->unix_ext) rc = CIFSUnixCreateHardLink(xid, pTcon, fromName, toName, - cifs_sb_target->local_nls, + cifs_sb_target->local_nls, cifs_sb_target->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); else { rc = CIFSCreateHardLink(xid, pTcon, fromName, toName, - cifs_sb_target->local_nls, + cifs_sb_target->local_nls, cifs_sb_target->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - if((rc == -EIO) || (rc == -EINVAL)) - rc = -EOPNOTSUPP; + if ((rc == -EIO) || (rc == -EINVAL)) + rc = -EOPNOTSUPP; } d_drop(direntry); /* force new lookup from server of target */ /* if source file is cached (oplocked) revalidate will not go to server until the file is closed or oplock broken so update nlinks locally */ - if(old_file->d_inode) { + if (old_file->d_inode) { cifsInode = CIFS_I(old_file->d_inode); - if(rc == 0) { + if (rc == 0) { old_file->d_inode->i_nlink++; /* BB should we make this contingent on superblock flag NOATIME? */ /* old_file->d_inode->i_ctime = CURRENT_TIME;*/ @@ -84,14 +85,14 @@ cifs_hardlink(struct dentry *old_file, struct inode *inode, to set the parent dir cifs inode time to zero to force revalidate (faster) for it too? */ } - /* if not oplocked will force revalidate to get info + /* if not oplocked will force revalidate to get info on source file from srv */ cifsInode->time = 0; - /* Will update parent dir timestamps from srv within a second. + /* Will update parent dir timestamps from srv within a second. Would it really be worth it to set the parent dir (cifs inode) time field to zero to force revalidate on parent - directory faster ie + directory faster ie CIFS_I(inode)->time = 0; */ } @@ -109,7 +110,7 @@ cifs_follow_link(struct dentry *direntry, struct nameidata *nd) int rc = -EACCES; int xid; char *full_path = NULL; - char * target_path = ERR_PTR(-ENOMEM); + char *target_path = ERR_PTR(-ENOMEM); struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; @@ -129,13 +130,19 @@ cifs_follow_link(struct dentry *direntry, struct nameidata *nd) goto out; } -/* BB add read reparse point symlink code and Unix extensions symlink code here BB */ + /* We could change this to: + if (pTcon->unix_ext) + but there does not seem any point in refusing to + get symlink info if we can, even if unix extensions + turned off for this mount */ + if (pTcon->ses->capabilities & CAP_UNIX) rc = CIFSSMBUnixQuerySymLink(xid, pTcon, full_path, target_path, PATH_MAX-1, cifs_sb->local_nls); else { + /* BB add read reparse point symlink code here */ /* rc = CIFSSMBQueryReparseLinkInfo */ /* BB Add code to Query ReparsePoint info */ /* BB Add MAC style xsymlink check here if enabled */ @@ -176,7 +183,7 @@ cifs_symlink(struct inode *inode, struct dentry *direntry, const char *symname) full_path = build_path_from_dentry(direntry); - if(full_path == NULL) { + if (full_path == NULL) { FreeXid(xid); return -ENOMEM; } @@ -185,19 +192,20 @@ cifs_symlink(struct inode *inode, struct dentry *direntry, const char *symname) cFYI(1, ("symname is %s", symname)); /* BB what if DFS and this volume is on different share? BB */ - if (cifs_sb->tcon->ses->capabilities & CAP_UNIX) + if (pTcon->unix_ext) rc = CIFSUnixCreateSymLink(xid, pTcon, full_path, symname, cifs_sb->local_nls); /* else - rc = CIFSCreateReparseSymLink(xid, pTcon, fromName, toName,cifs_sb_target->local_nls); */ + rc = CIFSCreateReparseSymLink(xid, pTcon, fromName, toName, + cifs_sb_target->local_nls); */ if (rc == 0) { - if (pTcon->ses->capabilities & CAP_UNIX) + if (pTcon->unix_ext) rc = cifs_get_inode_info_unix(&newinode, full_path, - inode->i_sb,xid); + inode->i_sb, xid); else rc = cifs_get_inode_info(&newinode, full_path, NULL, - inode->i_sb,xid); + inode->i_sb, xid); if (rc != 0) { cFYI(1, ("Create symlink ok, getinodeinfo fail rc = %d", @@ -226,9 +234,9 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen) struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; char *full_path = NULL; - char *tmp_path = NULL; - char * tmpbuffer; - unsigned char * referrals = NULL; + char *tmp_path = NULL; + char *tmpbuffer; + unsigned char *referrals = NULL; int num_referrals = 0; int len; __u16 fid; @@ -237,13 +245,13 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen) cifs_sb = CIFS_SB(inode->i_sb); pTcon = cifs_sb->tcon; -/* BB would it be safe against deadlock to grab this sem +/* BB would it be safe against deadlock to grab this sem even though rename itself grabs the sem and calls lookup? */ /* mutex_lock(&inode->i_sb->s_vfs_rename_mutex);*/ full_path = build_path_from_dentry(direntry); /* mutex_unlock(&inode->i_sb->s_vfs_rename_mutex);*/ - if(full_path == NULL) { + if (full_path == NULL) { FreeXid(xid); return -ENOMEM; } @@ -251,70 +259,80 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen) cFYI(1, ("Full path: %s inode = 0x%p pBuffer = 0x%p buflen = %d", full_path, inode, pBuffer, buflen)); - if(buflen > PATH_MAX) + if (buflen > PATH_MAX) len = PATH_MAX; else len = buflen; - tmpbuffer = kmalloc(len,GFP_KERNEL); - if(tmpbuffer == NULL) { + tmpbuffer = kmalloc(len, GFP_KERNEL); + if (tmpbuffer == NULL) { kfree(full_path); FreeXid(xid); return -ENOMEM; } -/* BB add read reparse point symlink code and Unix extensions symlink code here BB */ +/* BB add read reparse point symlink code and + Unix extensions symlink code here BB */ +/* We could disable this based on pTcon->unix_ext flag instead ... but why? */ if (cifs_sb->tcon->ses->capabilities & CAP_UNIX) rc = CIFSSMBUnixQuerySymLink(xid, pTcon, full_path, tmpbuffer, len - 1, cifs_sb->local_nls); else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) { - cERROR(1,("SFU style symlinks not implemented yet")); + cERROR(1, ("SFU style symlinks not implemented yet")); /* add open and read as in fs/cifs/inode.c */ - } else { rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN, GENERIC_READ, - OPEN_REPARSE_POINT,&fid, &oplock, NULL, - cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + OPEN_REPARSE_POINT, &fid, &oplock, NULL, + cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - if(!rc) { + if (!rc) { rc = CIFSSMBQueryReparseLinkInfo(xid, pTcon, full_path, tmpbuffer, - len - 1, + len - 1, fid, cifs_sb->local_nls); - if(CIFSSMBClose(xid, pTcon, fid)) { - cFYI(1,("Error closing junction point (open for ioctl)")); + if (CIFSSMBClose(xid, pTcon, fid)) { + cFYI(1, ("Error closing junction point " + "(open for ioctl)")); } - if(rc == -EIO) { + if (rc == -EIO) { /* Query if DFS Junction */ tmp_path = kmalloc(MAX_TREE_SIZE + MAX_PATHCONF + 1, GFP_KERNEL); if (tmp_path) { - strncpy(tmp_path, pTcon->treeName, MAX_TREE_SIZE); - strncat(tmp_path, full_path, MAX_PATHCONF); - rc = get_dfs_path(xid, pTcon->ses, tmp_path, + strncpy(tmp_path, pTcon->treeName, + MAX_TREE_SIZE); + strncat(tmp_path, full_path, + MAX_PATHCONF); + rc = get_dfs_path(xid, pTcon->ses, + tmp_path, cifs_sb->local_nls, &num_referrals, &referrals, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - cFYI(1,("Get DFS for %s rc = %d ",tmp_path, rc)); - if((num_referrals == 0) && (rc == 0)) + cFYI(1, ("Get DFS for %s rc = %d ", + tmp_path, rc)); + if ((num_referrals == 0) && (rc == 0)) rc = -EACCES; else { - cFYI(1,("num referral: %d",num_referrals)); - if(referrals) { - cFYI(1,("referral string: %s",referrals)); - strncpy(tmpbuffer, referrals, len-1); + cFYI(1, ("num referral: %d", + num_referrals)); + if (referrals) { + cFYI(1,("referral string: %s", referrals)); + strncpy(tmpbuffer, + referrals, + len-1); } } kfree(referrals); kfree(tmp_path); } - /* BB add code like else decode referrals then memcpy to - tmpbuffer and free referrals string array BB */ + /* BB add code like else decode referrals + then memcpy to tmpbuffer and free referrals + string array BB */ } } } diff --git a/fs/cifs/md4.c b/fs/cifs/md4.c index 46d62c9dda0..a2415c1a14d 100644 --- a/fs/cifs/md4.c +++ b/fs/cifs/md4.c @@ -1,20 +1,20 @@ -/* +/* Unix SMB/Netbios implementation. Version 1.9. a implementation of MD4 designed for use in the SMB authentication protocol Copyright (C) Andrew Tridgell 1997-1998. Modified by Steve French (sfrench@us.ibm.com) 2002-2003 - + This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. - + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. - + You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. @@ -170,7 +170,7 @@ mdfour(unsigned char *out, unsigned char *in, int n) while (n > 64) { copy64(M, in); - mdfour64(M,&A,&B, &C, &D); + mdfour64(M, &A, &B, &C, &D); in += 64; n -= 64; } diff --git a/fs/cifs/md5.c b/fs/cifs/md5.c index ccebf9b7eb8..e5c3e121269 100644 --- a/fs/cifs/md5.c +++ b/fs/cifs/md5.c @@ -15,9 +15,9 @@ * will fill a supplied 16-byte array with the digest. */ -/* This code slightly modified to fit into Samba by - abartlet@samba.org Jun 2001 - and to fit the cifs vfs by +/* This code slightly modified to fit into Samba by + abartlet@samba.org Jun 2001 + and to fit the cifs vfs by Steve French sfrench@us.ibm.com */ #include <linux/string.h> @@ -106,7 +106,7 @@ MD5Update(struct MD5Context *ctx, unsigned char const *buf, unsigned len) } /* - * Final wrapup - pad to 64-byte boundary with the bit pattern + * Final wrapup - pad to 64-byte boundary with the bit pattern * 1 0* (64-bit count of bits processed, MSB-first) */ void diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c index 19cc294c7c7..0bcec0844be 100644 --- a/fs/cifs/misc.c +++ b/fs/cifs/misc.c @@ -1,7 +1,7 @@ /* * fs/cifs/misc.c * - * Copyright (C) International Business Machines Corp., 2002,2005 + * Copyright (C) International Business Machines Corp., 2002,2007 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify @@ -16,7 +16,7 @@ * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/slab.h> @@ -32,12 +32,12 @@ extern mempool_t *cifs_sm_req_poolp; extern mempool_t *cifs_req_poolp; -extern struct task_struct * oplockThread; +extern struct task_struct *oplockThread; -/* The xid serves as a useful identifier for each incoming vfs request, - in a similar way to the mid which is useful to track each sent smb, - and CurrentXid can also provide a running counter (although it - will eventually wrap past zero) of the total vfs operations handled +/* The xid serves as a useful identifier for each incoming vfs request, + in a similar way to the mid which is useful to track each sent smb, + and CurrentXid can also provide a running counter (although it + will eventually wrap past zero) of the total vfs operations handled since the cifs fs was mounted */ unsigned int @@ -47,10 +47,12 @@ _GetXid(void) spin_lock(&GlobalMid_Lock); GlobalTotalActiveXid++; + + /* keep high water mark for number of simultaneous ops in filesystem */ if (GlobalTotalActiveXid > GlobalMaxActiveXid) - GlobalMaxActiveXid = GlobalTotalActiveXid; /* keep high water mark for number of simultaneous vfs ops in our filesystem */ - if(GlobalTotalActiveXid > 65000) - cFYI(1,("warning: more than 65000 requests active")); + GlobalMaxActiveXid = GlobalTotalActiveXid; + if (GlobalTotalActiveXid > 65000) + cFYI(1, ("warning: more than 65000 requests active")); xid = GlobalCurrentXid++; spin_unlock(&GlobalMid_Lock); return xid; @@ -60,7 +62,7 @@ void _FreeXid(unsigned int xid) { spin_lock(&GlobalMid_Lock); - /* if(GlobalTotalActiveXid == 0) + /* if (GlobalTotalActiveXid == 0) BUG(); */ GlobalTotalActiveXid--; spin_unlock(&GlobalMid_Lock); @@ -144,12 +146,12 @@ cifs_buf_get(void) { struct smb_hdr *ret_buf = NULL; -/* We could use negotiated size instead of max_msgsize - - but it may be more efficient to always alloc same size - albeit slightly larger than necessary and maxbuffersize +/* We could use negotiated size instead of max_msgsize - + but it may be more efficient to always alloc same size + albeit slightly larger than necessary and maxbuffersize defaults to this and can not be bigger */ - ret_buf = - (struct smb_hdr *) mempool_alloc(cifs_req_poolp, GFP_KERNEL | GFP_NOFS); + ret_buf = (struct smb_hdr *) mempool_alloc(cifs_req_poolp, + GFP_KERNEL | GFP_NOFS); /* clear the first few header bytes */ /* for most paths, more is cleared in header_assemble */ @@ -172,7 +174,7 @@ cifs_buf_release(void *buf_to_free) /* cFYI(1, ("Null buffer passed to cifs_buf_release"));*/ return; } - mempool_free(buf_to_free,cifs_req_poolp); + mempool_free(buf_to_free, cifs_req_poolp); atomic_dec(&bufAllocCount); return; @@ -183,12 +185,12 @@ cifs_small_buf_get(void) { struct smb_hdr *ret_buf = NULL; -/* We could use negotiated size instead of max_msgsize - - but it may be more efficient to always alloc same size - albeit slightly larger than necessary and maxbuffersize +/* We could use negotiated size instead of max_msgsize - + but it may be more efficient to always alloc same size + albeit slightly larger than necessary and maxbuffersize defaults to this and can not be bigger */ - ret_buf = - (struct smb_hdr *) mempool_alloc(cifs_sm_req_poolp, GFP_KERNEL | GFP_NOFS); + ret_buf = (struct smb_hdr *) mempool_alloc(cifs_sm_req_poolp, + GFP_KERNEL | GFP_NOFS); if (ret_buf) { /* No need to clear memory here, cleared in header assemble */ /* memset(ret_buf, 0, sizeof(struct smb_hdr) + 27);*/ @@ -209,30 +211,30 @@ cifs_small_buf_release(void *buf_to_free) cFYI(1, ("Null buffer passed to cifs_small_buf_release")); return; } - mempool_free(buf_to_free,cifs_sm_req_poolp); + mempool_free(buf_to_free, cifs_sm_req_poolp); atomic_dec(&smBufAllocCount); return; } -/* +/* Find a free multiplex id (SMB mid). Otherwise there could be mid collisions which might cause problems, demultiplexing the wrong response to this request. Multiplex ids could collide if one of a series requests takes much longer than the others, or if a very large number of long lived requests (byte range locks or FindNotify requests) are pending. No more than - 64K-1 requests can be outstanding at one time. If no + 64K-1 requests can be outstanding at one time. If no mids are available, return zero. A future optimization could make the combination of mids and uid the key we use - to demultiplex on (rather than mid alone). + to demultiplex on (rather than mid alone). In addition to the above check, the cifs demultiplex code already used the command code as a secondary check of the frame and if signing is negotiated the response would be discarded if the mid were the same but the signature was wrong. Since the mid is not put in the pending queue until later (when it is about to be dispatched) - we do have to limit the number of outstanding requests + we do have to limit the number of outstanding requests to somewhat less than 64K-1 although it is hard to imagine so many threads being in the vfs at one time. */ @@ -240,27 +242,27 @@ __u16 GetNextMid(struct TCP_Server_Info *server) { __u16 mid = 0; __u16 last_mid; - int collision; + int collision; - if(server == NULL) + if (server == NULL) return mid; spin_lock(&GlobalMid_Lock); last_mid = server->CurrentMid; /* we do not want to loop forever */ server->CurrentMid++; /* This nested loop looks more expensive than it is. - In practice the list of pending requests is short, + In practice the list of pending requests is short, fewer than 50, and the mids are likely to be unique on the first pass through the loop unless some request takes longer than the 64 thousand requests before it (and it would also have to have been a request that did not time out) */ - while(server->CurrentMid != last_mid) { + while (server->CurrentMid != last_mid) { struct list_head *tmp; struct mid_q_entry *mid_entry; collision = 0; - if(server->CurrentMid == 0) + if (server->CurrentMid == 0) server->CurrentMid++; list_for_each(tmp, &server->pending_mid_q) { @@ -273,7 +275,7 @@ __u16 GetNextMid(struct TCP_Server_Info *server) break; } } - if(collision == 0) { + if (collision == 0) { mid = server->CurrentMid; break; } @@ -290,11 +292,11 @@ header_assemble(struct smb_hdr *buffer, char smb_command /* command */ , const struct cifsTconInfo *treeCon, int word_count /* length of fixed section (word count) in two byte units */) { - struct list_head* temp_item; - struct cifsSesInfo * ses; + struct list_head *temp_item; + struct cifsSesInfo *ses; char *temp = (char *) buffer; - memset(temp,0,256); /* bigger than MAX_CIFS_HDR_SIZE */ + memset(temp, 0, 256); /* bigger than MAX_CIFS_HDR_SIZE */ buffer->smb_buf_length = (2 * word_count) + sizeof (struct smb_hdr) - @@ -325,7 +327,7 @@ header_assemble(struct smb_hdr *buffer, char smb_command /* command */ , /* Uid is not converted */ buffer->Uid = treeCon->ses->Suid; buffer->Mid = GetNextMid(treeCon->ses->server); - if(multiuser_mount != 0) { + if (multiuser_mount != 0) { /* For the multiuser case, there are few obvious technically */ /* possible mechanisms to match the local linux user (uid) */ /* to a valid remote smb user (smb_uid): */ @@ -348,21 +350,22 @@ header_assemble(struct smb_hdr *buffer, char smb_command /* command */ , /* flag were disabled. */ /* BB Add support for establishing new tCon and SMB Session */ - /* with userid/password pairs found on the smb session */ + /* with userid/password pairs found on the smb session */ /* for other target tcp/ip addresses BB */ - if(current->fsuid != treeCon->ses->linux_uid) { - cFYI(1,("Multiuser mode and UID did not match tcon uid")); + if (current->fsuid != treeCon->ses->linux_uid) { + cFYI(1, ("Multiuser mode and UID " + "did not match tcon uid")); read_lock(&GlobalSMBSeslock); list_for_each(temp_item, &GlobalSMBSessionList) { ses = list_entry(temp_item, struct cifsSesInfo, cifsSessionList); - if(ses->linux_uid == current->fsuid) { - if(ses->server == treeCon->ses->server) { - cFYI(1,("found matching uid substitute right smb_uid")); + if (ses->linux_uid == current->fsuid) { + if (ses->server == treeCon->ses->server) { + cFYI(1, ("found matching uid substitute right smb_uid")); buffer->Uid = ses->Suid; break; } else { - /* BB eventually call cifs_setup_session here */ - cFYI(1,("local UID found but smb sess with this server does not exist")); + /* BB eventually call cifs_setup_session here */ + cFYI(1, ("local UID found but no smb sess with this server exists")); } } } @@ -374,8 +377,8 @@ header_assemble(struct smb_hdr *buffer, char smb_command /* command */ , buffer->Flags2 |= SMBFLG2_DFS; if (treeCon->nocase) buffer->Flags |= SMBFLG_CASELESS; - if((treeCon->ses) && (treeCon->ses->server)) - if(treeCon->ses->server->secMode & + if ((treeCon->ses) && (treeCon->ses->server)) + if (treeCon->ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; } @@ -388,18 +391,18 @@ header_assemble(struct smb_hdr *buffer, char smb_command /* command */ , static int checkSMBhdr(struct smb_hdr *smb, __u16 mid) { - /* Make sure that this really is an SMB, that it is a response, + /* Make sure that this really is an SMB, that it is a response, and that the message ids match */ - if ((*(__le32 *) smb->Protocol == cpu_to_le32(0x424d53ff)) && - (mid == smb->Mid)) { - if(smb->Flags & SMBFLG_RESPONSE) - return 0; - else { + if ((*(__le32 *) smb->Protocol == cpu_to_le32(0x424d53ff)) && + (mid == smb->Mid)) { + if (smb->Flags & SMBFLG_RESPONSE) + return 0; + else { /* only one valid case where server sends us request */ - if(smb->Command == SMB_COM_LOCKING_ANDX) + if (smb->Command == SMB_COM_LOCKING_ANDX) return 0; else - cERROR(1, ("Rcvd Request not response")); + cERROR(1, ("Received Request not response")); } } else { /* bad signature or mid */ if (*(__le32 *) smb->Protocol != cpu_to_le32(0x424d53ff)) @@ -426,9 +429,9 @@ checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length) smb->WordCount = 0; /* some error cases do not return wct and bcc */ return 0; - } else if ((length == sizeof(struct smb_hdr) + 1) && + } else if ((length == sizeof(struct smb_hdr) + 1) && (smb->WordCount == 0)) { - char * tmp = (char *)smb; + char *tmp = (char *)smb; /* Need to work around a bug in two servers here */ /* First, check if the part of bcc they sent was zero */ if (tmp[sizeof(struct smb_hdr)] == 0) { @@ -442,7 +445,7 @@ checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length) tmp[sizeof(struct smb_hdr)+1] = 0; return 0; } - cERROR(1,("rcvd invalid byte count (bcc)")); + cERROR(1, ("rcvd invalid byte count (bcc)")); } else { cERROR(1, ("Length less than smb header size")); } @@ -458,32 +461,33 @@ checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length) return 1; clc_len = smbCalcSize_LE(smb); - if(4 + len != length) { - cERROR(1, ("Length read does not match RFC1001 length %d",len)); + if (4 + len != length) { + cERROR(1, ("Length read does not match RFC1001 length %d", + len)); return 1; } if (4 + len != clc_len) { /* check if bcc wrapped around for large read responses */ - if((len > 64 * 1024) && (len > clc_len)) { + if ((len > 64 * 1024) && (len > clc_len)) { /* check if lengths match mod 64K */ - if(((4 + len) & 0xFFFF) == (clc_len & 0xFFFF)) - return 0; /* bcc wrapped */ + if (((4 + len) & 0xFFFF) == (clc_len & 0xFFFF)) + return 0; /* bcc wrapped */ } cFYI(1, ("Calculated size %d vs length %d mismatch for mid %d", clc_len, 4 + len, smb->Mid)); /* Windows XP can return a few bytes too much, presumably - an illegal pad, at the end of byte range lock responses + an illegal pad, at the end of byte range lock responses so we allow for that three byte pad, as long as actual received length is as long or longer than calculated length */ - /* We have now had to extend this more, since there is a + /* We have now had to extend this more, since there is a case in which it needs to be bigger still to handle a malformed response to transact2 findfirst from WinXP when access denied is returned and thus bcc and wct are zero but server says length is 0x21 bytes too long as if the server forget to reset the smb rfc1001 length when it reset the wct and bcc to minimum size and drop the t2 parms and data */ - if((4+len > clc_len) && (len <= clc_len + 512)) + if ((4+len > clc_len) && (len <= clc_len + 512)) return 0; else { cERROR(1, ("RFC1001 size %d bigger than SMB for Mid=%d", @@ -495,61 +499,64 @@ checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length) } int is_valid_oplock_break(struct smb_hdr *buf, struct TCP_Server_Info *srv) -{ - struct smb_com_lock_req * pSMB = (struct smb_com_lock_req *)buf; +{ + struct smb_com_lock_req *pSMB = (struct smb_com_lock_req *)buf; struct list_head *tmp; struct list_head *tmp1; struct cifsTconInfo *tcon; struct cifsFileInfo *netfile; - cFYI(1,("Checking for oplock break or dnotify response")); - if((pSMB->hdr.Command == SMB_COM_NT_TRANSACT) && + cFYI(1, ("Checking for oplock break or dnotify response")); + if ((pSMB->hdr.Command == SMB_COM_NT_TRANSACT) && (pSMB->hdr.Flags & SMBFLG_RESPONSE)) { - struct smb_com_transaction_change_notify_rsp * pSMBr = + struct smb_com_transaction_change_notify_rsp *pSMBr = (struct smb_com_transaction_change_notify_rsp *)buf; - struct file_notify_information * pnotify; + struct file_notify_information *pnotify; __u32 data_offset = 0; - if(pSMBr->ByteCount > sizeof(struct file_notify_information)) { + if (pSMBr->ByteCount > sizeof(struct file_notify_information)) { data_offset = le32_to_cpu(pSMBr->DataOffset); pnotify = (struct file_notify_information *) ((char *)&pSMBr->hdr.Protocol + data_offset); - cFYI(1,("dnotify on %s Action: 0x%x",pnotify->FileName, + cFYI(1, ("dnotify on %s Action: 0x%x", + pnotify->FileName, pnotify->Action)); /* BB removeme BB */ - /* cifs_dump_mem("Rcvd notify Data: ",buf, + /* cifs_dump_mem("Rcvd notify Data: ",buf, sizeof(struct smb_hdr)+60); */ return TRUE; } - if(pSMBr->hdr.Status.CifsError) { - cFYI(1,("notify err 0x%d",pSMBr->hdr.Status.CifsError)); + if (pSMBr->hdr.Status.CifsError) { + cFYI(1, ("notify err 0x%d", + pSMBr->hdr.Status.CifsError)); return TRUE; } return FALSE; - } - if(pSMB->hdr.Command != SMB_COM_LOCKING_ANDX) + } + if (pSMB->hdr.Command != SMB_COM_LOCKING_ANDX) return FALSE; - if(pSMB->hdr.Flags & SMBFLG_RESPONSE) { + if (pSMB->hdr.Flags & SMBFLG_RESPONSE) { /* no sense logging error on invalid handle on oplock break - harmless race between close request and oplock break response is expected from time to time writing out large dirty files cached on the client */ - if ((NT_STATUS_INVALID_HANDLE) == - le32_to_cpu(pSMB->hdr.Status.CifsError)) { - cFYI(1,("invalid handle on oplock break")); + if ((NT_STATUS_INVALID_HANDLE) == + le32_to_cpu(pSMB->hdr.Status.CifsError)) { + cFYI(1, ("invalid handle on oplock break")); return TRUE; - } else if (ERRbadfid == + } else if (ERRbadfid == le16_to_cpu(pSMB->hdr.Status.DosError.Error)) { - return TRUE; + return TRUE; } else { return FALSE; /* on valid oplock brk we get "request" */ } } - if(pSMB->hdr.WordCount != 8) + if (pSMB->hdr.WordCount != 8) return FALSE; - cFYI(1,(" oplock type 0x%d level 0x%d",pSMB->LockType,pSMB->OplockLevel)); - if(!(pSMB->LockType & LOCKING_ANDX_OPLOCK_RELEASE)) - return FALSE; + cFYI(1, ("oplock type 0x%d level 0x%d", + pSMB->LockType, pSMB->OplockLevel)); + if (!(pSMB->LockType & LOCKING_ANDX_OPLOCK_RELEASE)) + return FALSE; /* look up tcon based on tid & uid */ read_lock(&GlobalSMBSeslock); @@ -557,36 +564,38 @@ is_valid_oplock_break(struct smb_hdr *buf, struct TCP_Server_Info *srv) tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList); if ((tcon->tid == buf->Tid) && (srv == tcon->ses->server)) { cifs_stats_inc(&tcon->num_oplock_brks); - list_for_each(tmp1,&tcon->openFileList){ - netfile = list_entry(tmp1,struct cifsFileInfo, + list_for_each(tmp1, &tcon->openFileList) { + netfile = list_entry(tmp1, struct cifsFileInfo, tlist); - if(pSMB->Fid == netfile->netfid) { + if (pSMB->Fid == netfile->netfid) { struct cifsInodeInfo *pCifsInode; read_unlock(&GlobalSMBSeslock); - cFYI(1,("file id match, oplock break")); - pCifsInode = + cFYI(1, + ("file id match, oplock break")); + pCifsInode = CIFS_I(netfile->pInode); pCifsInode->clientCanCacheAll = FALSE; - if(pSMB->OplockLevel == 0) + if (pSMB->OplockLevel == 0) pCifsInode->clientCanCacheRead = FALSE; pCifsInode->oplockPending = TRUE; AllocOplockQEntry(netfile->pInode, netfile->netfid, tcon); - cFYI(1,("about to wake up oplock thd")); - if(oplockThread) + cFYI(1, + ("about to wake up oplock thread")); + if (oplockThread) wake_up_process(oplockThread); return TRUE; } } read_unlock(&GlobalSMBSeslock); - cFYI(1,("No matching file for oplock break")); + cFYI(1, ("No matching file for oplock break")); return TRUE; } } read_unlock(&GlobalSMBSeslock); - cFYI(1,("Can not process oplock break for non-existent connection")); + cFYI(1, ("Can not process oplock break for non-existent connection")); return TRUE; } @@ -643,13 +652,13 @@ dump_smb(struct smb_hdr *smb_buf, int smb_buf_length) only legal in POSIX-like OS (if they are present in the string). Path names are little endian 16 bit Unicode on the wire */ int -cifs_convertUCSpath(char *target, const __le16 * source, int maxlen, - const struct nls_table * cp) +cifs_convertUCSpath(char *target, const __le16 *source, int maxlen, + const struct nls_table *cp) { - int i,j,len; + int i, j, len; __u16 src_char; - for(i = 0, j = 0; i < maxlen; i++) { + for (i = 0, j = 0; i < maxlen; i++) { src_char = le16_to_cpu(source[i]); switch (src_char) { case 0: @@ -678,10 +687,10 @@ cifs_convertUCSpath(char *target, const __le16 * source, int maxlen, case UNI_LESSTHAN: target[j] = '<'; break; - default: - len = cp->uni2char(src_char, &target[j], + default: + len = cp->uni2char(src_char, &target[j], NLS_MAX_CHARSET_SIZE); - if(len > 0) { + if (len > 0) { j += len; continue; } else { @@ -690,7 +699,7 @@ cifs_convertUCSpath(char *target, const __le16 * source, int maxlen, } j++; /* make sure we do not overrun callers allocated temp buffer */ - if(j >= (2 * NAME_MAX)) + if (j >= (2 * NAME_MAX)) break; } cUCS_out: @@ -703,18 +712,18 @@ cUCS_out: only legal in POSIX-like OS (if they are present in the string). Path names are little endian 16 bit Unicode on the wire */ int -cifsConvertToUCS(__le16 * target, const char *source, int maxlen, - const struct nls_table * cp, int mapChars) +cifsConvertToUCS(__le16 *target, const char *source, int maxlen, + const struct nls_table *cp, int mapChars) { - int i,j,charlen; + int i, j, charlen; int len_remaining = maxlen; char src_char; __u16 temp; - if(!mapChars) + if (!mapChars) return cifs_strtoUCS(target, source, PATH_MAX, cp); - for(i = 0, j = 0; i < maxlen; j++) { + for (i = 0, j = 0; i < maxlen; j++) { src_char = source[i]; switch (src_char) { case 0: @@ -737,7 +746,7 @@ cifsConvertToUCS(__le16 * target, const char *source, int maxlen, break; case '|': target[j] = cpu_to_le16(UNI_PIPE); - break; + break; /* BB We can not handle remapping slash until all the calls to build_path_from_dentry are modified, as they use slash as separator BB */ @@ -749,7 +758,7 @@ cifsConvertToUCS(__le16 * target, const char *source, int maxlen, len_remaining, &temp); /* if no match, use question mark, which at least in some cases servers as wild card */ - if(charlen < 1) { + if (charlen < 1) { target[j] = cpu_to_le16(0x003f); charlen = 1; } else @@ -758,7 +767,7 @@ cifsConvertToUCS(__le16 * target, const char *source, int maxlen, /* character may take more than one byte in the the source string, but will take exactly two bytes in the target string */ - i+= charlen; + i += charlen; continue; } i++; /* move to next char in source string */ diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c index 53e304d5954..2bfed3f45d0 100644 --- a/fs/cifs/netmisc.c +++ b/fs/cifs/netmisc.c @@ -3,23 +3,22 @@ * * Copyright (c) International Business Machines Corp., 2002 * Author(s): Steve French (sfrench@us.ibm.com) - * + * * Error mapping routines from Samba libsmb/errormap.c * Copyright (C) Andrew Tridgell 2001 * - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or + * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. - * + * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See * the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software + * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ @@ -30,9 +29,7 @@ #include <linux/fs.h> #include <asm/div64.h> #include <asm/byteorder.h> -#ifdef CONFIG_CIFS_EXPERIMENTAL #include <linux/inet.h> -#endif #include "cifsfs.h" #include "cifspdu.h" #include "cifsglob.h" @@ -67,22 +64,22 @@ static const struct smb_to_posix_error mapping_table_ERRDOS[] = { {ERRbadshare, -ETXTBSY}, {ERRlock, -EACCES}, {ERRunsup, -EINVAL}, - {ERRnosuchshare,-ENXIO}, + {ERRnosuchshare, -ENXIO}, {ERRfilexists, -EEXIST}, {ERRinvparm, -EINVAL}, {ERRdiskfull, -ENOSPC}, {ERRinvname, -ENOENT}, - {ERRinvlevel,-EOPNOTSUPP}, + {ERRinvlevel, -EOPNOTSUPP}, {ERRdirnotempty, -ENOTEMPTY}, {ERRnotlocked, -ENOLCK}, {ERRcancelviolation, -ENOLCK}, {ERRalreadyexists, -EEXIST}, {ERRmoredata, -EOVERFLOW}, - {ERReasnotsupported,-EOPNOTSUPP}, + {ERReasnotsupported, -EOPNOTSUPP}, {ErrQuota, -EDQUOT}, {ErrNotALink, -ENOLINK}, - {ERRnetlogonNotStarted,-ENOPROTOOPT}, - {ErrTooManyLinks,-EMLINK}, + {ERRnetlogonNotStarted, -ENOPROTOOPT}, + {ErrTooManyLinks, -EMLINK}, {0, 0} }; @@ -133,85 +130,24 @@ static const struct smb_to_posix_error mapping_table_ERRHRD[] = { /* returns 0 if invalid address */ int -cifs_inet_pton(int address_family, char *cp,void *dst) +cifs_inet_pton(int address_family, char *cp, void *dst) { -#ifdef CONFIG_CIFS_EXPERIMENTAL int ret = 0; /* calculate length by finding first slash or NULL */ - /* BB Should we convert '/' slash to '\' here since it seems already done - before this */ - if( address_family == AF_INET ){ - ret = in4_pton(cp, -1 /* len */, dst , '\\', NULL); - } else if( address_family == AF_INET6 ){ + /* BB Should we convert '/' slash to '\' here since it seems already + * done before this */ + if ( address_family == AF_INET ) { + ret = in4_pton(cp, -1 /* len */, dst , '\\', NULL); + } else if ( address_family == AF_INET6 ) { ret = in6_pton(cp, -1 /* len */, dst , '\\', NULL); } #ifdef CONFIG_CIFS_DEBUG2 - cFYI(1,("address conversion returned %d for %s", ret, cp)); + cFYI(1, ("address conversion returned %d for %s", ret, cp)); #endif if (ret > 0) ret = 1; return ret; -#else - int value; - int digit; - int i; - char temp; - char bytes[4]; - char *end = bytes; - static const int addr_class_max[4] = - { 0xffffffff, 0xffffff, 0xffff, 0xff }; - - if(address_family != AF_INET) - return -EAFNOSUPPORT; - - for (i = 0; i < 4; i++) { - bytes[i] = 0; - } - - temp = *cp; - - while (TRUE) { - if (!isdigit(temp)) - return 0; - - value = 0; - digit = 0; - for (;;) { - if (isascii(temp) && isdigit(temp)) { - value = (value * 10) + temp - '0'; - temp = *++cp; - digit = 1; - } else - break; - } - - if (temp == '.') { - if ((end > bytes + 2) || (value > 255)) - return 0; - *end++ = value; - temp = *++cp; - } else if (temp == ':') { - cFYI(1,("IPv6 addresses not supported for CIFS mounts yet")); - return -1; - } else - break; - } - - /* check for last characters */ - if (temp != '\0' && (!isascii(temp) || !isspace(temp))) - if (temp != '\\') { - if (temp != '/') - return 0; - else - (*cp = '\\'); /* switch the slash the expected way */ - } - if (value > addr_class_max[end - bytes]) - return 0; - - *((__be32 *)dst) = *((__be32 *) bytes) | htonl(value); - return 1; /* success */ -#endif /* EXPERIMENTAL */ } /***************************************************************************** @@ -246,7 +182,7 @@ static const struct { ERRHRD, ERRgeneral, NT_STATUS_UNRECOGNIZED_MEDIA}, { ERRDOS, 27, NT_STATUS_NONEXISTENT_SECTOR}, /* { This NT error code was 'sqashed' - from NT_STATUS_MORE_PROCESSING_REQUIRED to NT_STATUS_OK + from NT_STATUS_MORE_PROCESSING_REQUIRED to NT_STATUS_OK during the session setup } */ { ERRDOS, ERRnomem, NT_STATUS_NO_MEMORY}, { @@ -261,7 +197,7 @@ static const struct { ERRDOS, 193, NT_STATUS_INVALID_FILE_FOR_SECTION}, { ERRDOS, ERRnoaccess, NT_STATUS_ALREADY_COMMITTED}, /* { This NT error code was 'sqashed' - from NT_STATUS_ACCESS_DENIED to NT_STATUS_TRUSTED_RELATIONSHIP_FAILURE + from NT_STATUS_ACCESS_DENIED to NT_STATUS_TRUSTED_RELATIONSHIP_FAILURE during the session setup } */ { ERRDOS, ERRnoaccess, NT_STATUS_ACCESS_DENIED}, { @@ -331,7 +267,7 @@ static const struct { ERRHRD, ERRgeneral, NT_STATUS_INVALID_ACCOUNT_NAME}, { ERRHRD, ERRgeneral, NT_STATUS_USER_EXISTS}, /* { This NT error code was 'sqashed' - from NT_STATUS_NO_SUCH_USER to NT_STATUS_LOGON_FAILURE + from NT_STATUS_NO_SUCH_USER to NT_STATUS_LOGON_FAILURE during the session setup } */ { ERRDOS, ERRnoaccess, NT_STATUS_NO_SUCH_USER}, { @@ -341,7 +277,7 @@ static const struct { ERRHRD, ERRgeneral, NT_STATUS_MEMBER_NOT_IN_GROUP}, { ERRHRD, ERRgeneral, NT_STATUS_LAST_ADMIN}, /* { This NT error code was 'sqashed' - from NT_STATUS_WRONG_PASSWORD to NT_STATUS_LOGON_FAILURE + from NT_STATUS_WRONG_PASSWORD to NT_STATUS_LOGON_FAILURE during the session setup } */ { ERRSRV, ERRbadpw, NT_STATUS_WRONG_PASSWORD}, { @@ -393,8 +329,8 @@ static const struct { ERRHRD, ERRgeneral, NT_STATUS_FILE_INVALID}, { ERRHRD, ERRgeneral, NT_STATUS_ALLOTTED_SPACE_EXCEEDED}, /* { This NT error code was 'sqashed' - from NT_STATUS_INSUFFICIENT_RESOURCES to NT_STATUS_INSUFF_SERVER_RESOURCES - during the session setup } */ + from NT_STATUS_INSUFFICIENT_RESOURCES to + NT_STATUS_INSUFF_SERVER_RESOURCES during the session setup } */ { ERRDOS, ERRnomem, NT_STATUS_INSUFFICIENT_RESOURCES}, { ERRDOS, ERRbadpath, NT_STATUS_DFS_EXIT_PATH_FOUND}, { @@ -638,8 +574,8 @@ static const struct { ERRDOS, 19, NT_STATUS_TOO_LATE}, { ERRDOS, ERRnoaccess, NT_STATUS_NO_TRUST_LSA_SECRET}, /* { This NT error code was 'sqashed' - from NT_STATUS_NO_TRUST_SAM_ACCOUNT to NT_STATUS_TRUSTED_RELATIONSHIP_FAILURE - during the session setup } */ + from NT_STATUS_NO_TRUST_SAM_ACCOUNT to + NT_STATUS_TRUSTED_RELATIONSHIP_FAILURE during the session setup } */ { ERRDOS, ERRnoaccess, NT_STATUS_NO_TRUST_SAM_ACCOUNT}, { ERRDOS, ERRnoaccess, NT_STATUS_TRUSTED_DOMAIN_FAILURE}, { @@ -658,7 +594,7 @@ static const struct { ERRDOS, ERRnoaccess, NT_STATUS_NOLOGON_WORKSTATION_TRUST_ACCOUNT}, { ERRDOS, ERRnoaccess, NT_STATUS_NOLOGON_SERVER_TRUST_ACCOUNT}, /* { This NT error code was 'sqashed' - from NT_STATUS_DOMAIN_TRUST_INCONSISTENT to NT_STATUS_LOGON_FAILURE + from NT_STATUS_DOMAIN_TRUST_INCONSISTENT to NT_STATUS_LOGON_FAILURE during the session setup } */ { ERRDOS, ERRnoaccess, NT_STATUS_DOMAIN_TRUST_INCONSISTENT}, { @@ -789,7 +725,7 @@ cifs_print_status(__u32 status_code) if (((nt_errs[idx].nt_errcode) & 0xFFFFFF) == (status_code & 0xFFFFFF)) { printk(KERN_NOTICE "Status code returned 0x%08x %s\n", - status_code,nt_errs[idx].nt_errstr); + status_code, nt_errs[idx].nt_errstr); } idx++; } @@ -821,7 +757,7 @@ int map_smb_to_linux_error(struct smb_hdr *smb) { unsigned int i; - int rc = -EIO; /* if transport error smb error may not be set */ + int rc = -EIO; /* if transport error smb error may not be set */ __u8 smberrclass; __u16 smberrcode; @@ -832,9 +768,10 @@ map_smb_to_linux_error(struct smb_hdr *smb) return 0; if (smb->Flags2 & SMBFLG2_ERR_STATUS) { - /* translate the newer STATUS codes to old style errors and then to POSIX errors */ + /* translate the newer STATUS codes to old style SMB errors + * and then to POSIX errors */ __u32 err = le32_to_cpu(smb->Status.CifsError); - if(cifsFYI & CIFS_RC) + if (cifsFYI & CIFS_RC) cifs_print_status(err); ntstatus_to_dos(err, &smberrclass, &smberrcode); } else { @@ -845,38 +782,42 @@ map_smb_to_linux_error(struct smb_hdr *smb) /* old style errors */ /* DOS class smb error codes - map DOS */ - if (smberrclass == ERRDOS) { /* one byte field no need to byte reverse */ + if (smberrclass == ERRDOS) { /* 1 byte field no need to byte reverse */ for (i = 0; i < sizeof (mapping_table_ERRDOS) / sizeof (struct smb_to_posix_error); i++) { if (mapping_table_ERRDOS[i].smb_err == 0) break; - else if (mapping_table_ERRDOS[i].smb_err == smberrcode) { + else if (mapping_table_ERRDOS[i].smb_err == + smberrcode) { rc = mapping_table_ERRDOS[i].posix_code; break; } - /* else try the next error mapping one to see if it will match */ + /* else try next error mapping one to see if match */ } - } else if (smberrclass == ERRSRV) { /* server class of error codes */ + } else if (smberrclass == ERRSRV) { /* server class of error codes */ for (i = 0; i < sizeof (mapping_table_ERRSRV) / sizeof (struct smb_to_posix_error); i++) { if (mapping_table_ERRSRV[i].smb_err == 0) break; - else if (mapping_table_ERRSRV[i].smb_err == smberrcode) { + else if (mapping_table_ERRSRV[i].smb_err == + smberrcode) { rc = mapping_table_ERRSRV[i].posix_code; break; } - /* else try the next error mapping one to see if it will match */ + /* else try next error mapping to see if match */ } } /* else ERRHRD class errors or junk - return EIO */ - cFYI(1, (" !!Mapping smb error code %d to POSIX err %d !!", smberrcode,rc)); + cFYI(1, (" !!Mapping smb error code %d to POSIX err %d !!", + smberrcode, rc)); - /* generic corrective action e.g. reconnect SMB session on ERRbaduid could be added */ + /* generic corrective action e.g. reconnect SMB session on + * ERRbaduid could be added */ return rc; } @@ -910,7 +851,7 @@ smbCalcSize_LE(struct smb_hdr *ptr) struct timespec cifs_NTtimeToUnix(u64 ntutc) { - struct timespec ts; + struct timespec ts; /* BB what about the timezone? BB */ /* Subtract the NTFS time offset, then convert to 1s intervals. */ @@ -918,7 +859,7 @@ cifs_NTtimeToUnix(u64 ntutc) t = ntutc - NTFS_TIME_OFFSET; ts.tv_nsec = do_div(t, 10000000) * 100; - ts.tv_sec = t; + ts.tv_sec = t; return ts; } @@ -946,20 +887,20 @@ struct timespec cnvrtDosUnixTm(__u16 date, __u16 time) SMB_TIME * st = (SMB_TIME *)&time; SMB_DATE * sd = (SMB_DATE *)&date; - cFYI(1,("date %d time %d",date, time)); + cFYI(1, ("date %d time %d", date, time)); sec = 2 * st->TwoSeconds; min = st->Minutes; - if((sec > 59) || (min > 59)) - cERROR(1,("illegal time min %d sec %d", min, sec)); + if ((sec > 59) || (min > 59)) + cERROR(1, ("illegal time min %d sec %d", min, sec)); sec += (min * 60); sec += 60 * 60 * st->Hours; - if(st->Hours > 24) - cERROR(1,("illegal hours %d",st->Hours)); + if (st->Hours > 24) + cERROR(1, ("illegal hours %d", st->Hours)); days = sd->Day; month = sd->Month; - if((days > 31) || (month > 12)) - cERROR(1,("illegal date, month %d day: %d", month, days)); + if ((days > 31) || (month > 12)) + cERROR(1, ("illegal date, month %d day: %d", month, days)); month -= 1; days += total_days_of_prev_months[month]; days += 3652; /* account for difference in days between 1980 and 1970 */ @@ -970,15 +911,15 @@ struct timespec cnvrtDosUnixTm(__u16 date, __u16 time) for years/100 except for years/400, but since the maximum number for DOS year is 2**7, the last year is 1980+127, which means we need only consider 2 special case years, ie the years 2000 and 2100, and only - adjust for the lack of leap year for the year 2100, as 2000 was a + adjust for the lack of leap year for the year 2100, as 2000 was a leap year (divisable by 400) */ - if(year >= 120) /* the year 2100 */ + if (year >= 120) /* the year 2100 */ days = days - 1; /* do not count leap year for the year 2100 */ /* adjust for leap year where we are still before leap day */ - if(year != 120) + if (year != 120) days -= ((year & 0x03) == 0) && (month < 2 ? 1 : 0); - sec += 24 * 60 * 60 * days; + sec += 24 * 60 * 60 * days; ts.tv_sec = sec; @@ -986,4 +927,4 @@ struct timespec cnvrtDosUnixTm(__u16 date, __u16 time) ts.tv_nsec = 0; return ts; -} +} diff --git a/fs/cifs/nterr.c b/fs/cifs/nterr.c index 4da50cd3446..819fd994b12 100644 --- a/fs/cifs/nterr.c +++ b/fs/cifs/nterr.c @@ -1,19 +1,19 @@ -/* +/* * Unix SMB/Netbios implementation. * Version 1.9. * RPC Pipe client / server routines * Copyright (C) Luke Kenneth Casson Leighton 1997-2001. - * + * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. - * + * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * + * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. diff --git a/fs/cifs/nterr.h b/fs/cifs/nterr.h index d2fb06c97df..588abbb9d08 100644 --- a/fs/cifs/nterr.h +++ b/fs/cifs/nterr.h @@ -1,4 +1,4 @@ -/* +/* Unix SMB/Netbios implementation. Version 1.9. NT error code constants @@ -6,17 +6,17 @@ Copyright (C) John H Terpstra 1996-2000 Copyright (C) Luke Kenneth Casson Leighton 1996-2000 Copyright (C) Paul Ashton 1998-2000 - + This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. - + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. - + You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. diff --git a/fs/cifs/ntlmssp.h b/fs/cifs/ntlmssp.h index d39b712a11c..7170a9b70f1 100644 --- a/fs/cifs/ntlmssp.h +++ b/fs/cifs/ntlmssp.h @@ -1,7 +1,7 @@ /* * fs/cifs/ntlmssp.h * - * Copyright (c) International Business Machines Corp., 2002,2006 + * Copyright (c) International Business Machines Corp., 2002,2007 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify @@ -16,7 +16,7 @@ * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #define NTLMSSP_SIGNATURE "NTLMSSP" @@ -27,18 +27,18 @@ #define UnknownMessage cpu_to_le32(8) /* Negotiate Flags */ -#define NTLMSSP_NEGOTIATE_UNICODE 0x01 // Text strings are in unicode -#define NTLMSSP_NEGOTIATE_OEM 0x02 // Text strings are in OEM -#define NTLMSSP_REQUEST_TARGET 0x04 // Server return its auth realm -#define NTLMSSP_NEGOTIATE_SIGN 0x0010 // Request signature capability -#define NTLMSSP_NEGOTIATE_SEAL 0x0020 // Request confidentiality +#define NTLMSSP_NEGOTIATE_UNICODE 0x01 /* Text strings are in unicode */ +#define NTLMSSP_NEGOTIATE_OEM 0x02 /* Text strings are in OEM */ +#define NTLMSSP_REQUEST_TARGET 0x04 /* Server return its auth realm */ +#define NTLMSSP_NEGOTIATE_SIGN 0x0010 /* Request signature capability */ +#define NTLMSSP_NEGOTIATE_SEAL 0x0020 /* Request confidentiality */ #define NTLMSSP_NEGOTIATE_DGRAM 0x0040 -#define NTLMSSP_NEGOTIATE_LM_KEY 0x0080 // Use LM session key for sign/seal -#define NTLMSSP_NEGOTIATE_NTLM 0x0200 // NTLM authentication +#define NTLMSSP_NEGOTIATE_LM_KEY 0x0080 /* Sign/seal use LM session key */ +#define NTLMSSP_NEGOTIATE_NTLM 0x0200 /* NTLM authentication */ #define NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED 0x1000 #define NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED 0x2000 -#define NTLMSSP_NEGOTIATE_LOCAL_CALL 0x4000 // client/server on same machine -#define NTLMSSP_NEGOTIATE_ALWAYS_SIGN 0x8000 // Sign for all security levels +#define NTLMSSP_NEGOTIATE_LOCAL_CALL 0x4000 /* client/server on same machine */ +#define NTLMSSP_NEGOTIATE_ALWAYS_SIGN 0x8000 /* Sign for all security levels */ #define NTLMSSP_TARGET_TYPE_DOMAIN 0x10000 #define NTLMSSP_TARGET_TYPE_SERVER 0x20000 #define NTLMSSP_TARGET_TYPE_SHARE 0x40000 diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index c08bda9fcac..916df943133 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -2,7 +2,7 @@ * fs/cifs/readdir.c * * Directory search handling - * + * * Copyright (C) International Business Machines Corp., 2004, 2007 * Author(s): Steve French (sfrench@us.ibm.com) * @@ -34,24 +34,23 @@ #ifdef CONFIG_CIFS_DEBUG2 static void dump_cifs_file_struct(struct file *file, char *label) { - struct cifsFileInfo * cf; + struct cifsFileInfo *cf; if (file) { cf = file->private_data; if (cf == NULL) { - cFYI(1,("empty cifs private file data")); + cFYI(1, ("empty cifs private file data")); return; } if (cf->invalidHandle) { - cFYI(1,("invalid handle")); + cFYI(1, ("invalid handle")); } if (cf->srch_inf.endOfSearch) { - cFYI(1,("end of search")); + cFYI(1, ("end of search")); } if (cf->srch_inf.emptyDir) { - cFYI(1,("empty dir")); + cFYI(1, ("empty dir")); } - } } #endif /* DEBUG2 */ @@ -73,7 +72,8 @@ static int construct_dentry(struct qstr *qstring, struct file *file, qstring->hash = full_name_hash(qstring->name, qstring->len); tmp_dentry = d_lookup(file->f_path.dentry, qstring); if (tmp_dentry) { - cFYI(0, ("existing dentry with inode 0x%p", tmp_dentry->d_inode)); + cFYI(0, ("existing dentry with inode 0x%p", + tmp_dentry->d_inode)); *ptmp_inode = tmp_dentry->d_inode; /* BB overwrite old name? i.e. tmp_dentry->d_name and tmp_dentry->d_name.len??*/ if (*ptmp_inode == NULL) { @@ -87,7 +87,7 @@ static int construct_dentry(struct qstr *qstring, struct file *file, } else { tmp_dentry = d_alloc(file->f_path.dentry, qstring); if (tmp_dentry == NULL) { - cERROR(1,("Failed allocating dentry")); + cERROR(1, ("Failed allocating dentry")); *ptmp_inode = NULL; return rc; } @@ -100,7 +100,7 @@ static int construct_dentry(struct qstr *qstring, struct file *file, if (*ptmp_inode == NULL) return rc; if (file->f_path.dentry->d_sb->s_flags & MS_NOATIME) - (*ptmp_inode)->i_flags |= S_NOATIME | S_NOCMTIME; + (*ptmp_inode)->i_flags |= S_NOATIME | S_NOCMTIME; rc = 2; } @@ -109,7 +109,7 @@ static int construct_dentry(struct qstr *qstring, struct file *file, return rc; } -static void AdjustForTZ(struct cifsTconInfo * tcon, struct inode * inode) +static void AdjustForTZ(struct cifsTconInfo *tcon, struct inode *inode) { if ((tcon) && (tcon->ses) && (tcon->ses->server)) { inode->i_ctime.tv_sec += tcon->ses->server->timeAdj; @@ -121,7 +121,7 @@ static void AdjustForTZ(struct cifsTconInfo * tcon, struct inode * inode) static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, - char * buf, int *pobject_type, int isNewInode) + char *buf, int *pobject_type, int isNewInode) { loff_t local_size; struct timespec local_mtime; @@ -150,7 +150,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, cifs_NTtimeToUnix(le64_to_cpu(pfindData->ChangeTime)); } else { /* legacy, OS2 and DOS style */ /* struct timespec ts;*/ - FIND_FILE_STANDARD_INFO * pfindData = + FIND_FILE_STANDARD_INFO * pfindData = (FIND_FILE_STANDARD_INFO *)buf; tmp_inode->i_mtime = cnvrtDosUnixTm( @@ -175,7 +175,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, /* treat dos attribute of read-only as read-only mode bit e.g. 555? */ /* 2767 perms - indicate mandatory locking */ - /* BB fill in uid and gid here? with help from winbind? + /* BB fill in uid and gid here? with help from winbind? or retrieve from NTFS stream extended attribute */ if (atomic_read(&cifsInfo->inUse) == 0) { tmp_inode->i_uid = cifs_sb->mnt_uid; @@ -196,7 +196,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, tmp_inode->i_mode = cifs_sb->mnt_dir_mode; } tmp_inode->i_mode |= S_IFDIR; - } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) && + } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) && (attr & ATTR_SYSTEM)) { if (end_of_file == 0) { *pobject_type = DT_FIFO; @@ -206,13 +206,13 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, inode as needing revalidate and get the real type (blk vs chr vs. symlink) later ie in lookup */ *pobject_type = DT_REG; - tmp_inode->i_mode |= S_IFREG; - cifsInfo->time = 0; + tmp_inode->i_mode |= S_IFREG; + cifsInfo->time = 0; } /* we no longer mark these because we could not follow them */ /* } else if (attr & ATTR_REPARSE) { - *pobject_type = DT_LNK; - tmp_inode->i_mode |= S_IFLNK; */ + *pobject_type = DT_LNK; + tmp_inode->i_mode |= S_IFLNK; */ } else { *pobject_type = DT_REG; tmp_inode->i_mode |= S_IFREG; @@ -220,7 +220,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, tmp_inode->i_mode &= ~(S_IWUGO); else if ((tmp_inode->i_mode & S_IWUGO) == 0) /* the ATTR_READONLY flag may have been changed on */ - /* server -- set any w bits allowed by mnt_file_mode */ + /* server -- set any w bits allowed by mnt_file_mode */ tmp_inode->i_mode |= (S_IWUGO & cifs_sb->mnt_file_mode); } /* could add code here - to validate if device or weird share type? */ @@ -231,7 +231,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, spin_lock(&tmp_inode->i_lock); if (is_size_safe_to_change(cifsInfo, end_of_file)) { - /* can not safely change the file size here if the + /* can not safely change the file size here if the client is writing to it due to potential races */ i_size_write(tmp_inode, end_of_file); @@ -254,7 +254,6 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, tmp_inode->i_fop = &cifs_file_direct_nobrl_ops; else tmp_inode->i_fop = &cifs_file_direct_ops; - } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) tmp_inode->i_fop = &cifs_file_nobrl_ops; else @@ -322,8 +321,8 @@ static void unix_fill_in_inode(struct inode *tmp_inode, tmp_inode->i_mode = le64_to_cpu(pfindData->Permissions); /* since we set the inode type below we need to mask off type - to avoid strange results if bits above were corrupt */ - tmp_inode->i_mode &= ~S_IFMT; + to avoid strange results if bits above were corrupt */ + tmp_inode->i_mode &= ~S_IFMT; if (type == UNIX_FILE) { *pobject_type = DT_REG; tmp_inode->i_mode |= S_IFREG; @@ -353,7 +352,7 @@ static void unix_fill_in_inode(struct inode *tmp_inode, /* safest to just call it a file */ *pobject_type = DT_REG; tmp_inode->i_mode |= S_IFREG; - cFYI(1,("unknown inode type %d",type)); + cFYI(1, ("unknown inode type %d", type)); } if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) @@ -368,7 +367,7 @@ static void unix_fill_in_inode(struct inode *tmp_inode, spin_lock(&tmp_inode->i_lock); if (is_size_safe_to_change(cifsInfo, end_of_file)) { - /* can not safely change the file size here if the + /* can not safely change the file size here if the client is writing to it due to potential races */ i_size_write(tmp_inode, end_of_file); @@ -393,15 +392,16 @@ static void unix_fill_in_inode(struct inode *tmp_inode, tmp_inode->i_fop = &cifs_file_ops; if ((cifs_sb->tcon) && (cifs_sb->tcon->ses) && - (cifs_sb->tcon->ses->server->maxBuf < + (cifs_sb->tcon->ses->server->maxBuf < PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE)) tmp_inode->i_data.a_ops = &cifs_addr_ops_smallbuf; else tmp_inode->i_data.a_ops = &cifs_addr_ops; if (isNewInode) - return; /* No sense invalidating pages for new inode since we - have not started caching readahead file data yet */ + return; /* No sense invalidating pages for new inode + since we have not started caching readahead + file data for it yet */ if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) && (local_size == tmp_inode->i_size)) { @@ -420,7 +420,7 @@ static void unix_fill_in_inode(struct inode *tmp_inode, tmp_inode->i_op = &cifs_symlink_inode_ops; /* tmp_inode->i_fop = *//* do not need to set to anything */ } else { - cFYI(1, ("Special inode")); + cFYI(1, ("Special inode")); init_special_inode(tmp_inode, tmp_inode->i_mode, tmp_inode->i_rdev); } @@ -429,14 +429,14 @@ static void unix_fill_in_inode(struct inode *tmp_inode, static int initiate_cifs_search(const int xid, struct file *file) { int rc = 0; - char * full_path; - struct cifsFileInfo * cifsFile; + char *full_path; + struct cifsFileInfo *cifsFile; struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; if (file->private_data == NULL) { - file->private_data = - kzalloc(sizeof(struct cifsFileInfo),GFP_KERNEL); + file->private_data = + kzalloc(sizeof(struct cifsFileInfo), GFP_KERNEL); } if (file->private_data == NULL) @@ -463,9 +463,11 @@ static int initiate_cifs_search(const int xid, struct file *file) ffirst_retry: /* test for Unix extensions */ - if (pTcon->ses->capabilities & CAP_UNIX) { + /* but now check for them on the share/mount not on the SMB session */ +/* if (pTcon->ses->capabilities & CAP_UNIX) { */ + if (pTcon->unix_ext) { cifsFile->srch_inf.info_level = SMB_FIND_FILE_UNIX; - } else if ((pTcon->ses->capabilities & + } else if ((pTcon->ses->capabilities & (CAP_NT_SMBS | CAP_NT_FIND)) == 0) { cifsFile->srch_inf.info_level = SMB_FIND_FILE_INFO_STANDARD; } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) { @@ -474,13 +476,13 @@ ffirst_retry: cifsFile->srch_inf.info_level = SMB_FIND_FILE_DIRECTORY_INFO; } - rc = CIFSFindFirst(xid, pTcon,full_path,cifs_sb->local_nls, + rc = CIFSFindFirst(xid, pTcon, full_path, cifs_sb->local_nls, &cifsFile->netfid, &cifsFile->srch_inf, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR, CIFS_DIR_SEP(cifs_sb)); if (rc == 0) cifsFile->invalidHandle = FALSE; - if ((rc == -EOPNOTSUPP) && + if ((rc == -EOPNOTSUPP) && (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)) { cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_SERVER_INUM; goto ffirst_retry; @@ -495,17 +497,17 @@ static int cifs_unicode_bytelen(char *str) int len; __le16 * ustr = (__le16 *)str; - for(len=0;len <= PATH_MAX;len++) { + for (len = 0; len <= PATH_MAX; len++) { if (ustr[len] == 0) return len << 1; } - cFYI(1,("Unicode string longer than PATH_MAX found")); + cFYI(1, ("Unicode string longer than PATH_MAX found")); return len << 1; } static char *nxt_dir_entry(char *old_entry, char *end_of_smb, int level) { - char * new_entry; + char *new_entry; FILE_DIRECTORY_INFO * pDirInfo = (FILE_DIRECTORY_INFO *)old_entry; if (level == SMB_FIND_FILE_INFO_STANDARD) { @@ -516,21 +518,21 @@ static char *nxt_dir_entry(char *old_entry, char *end_of_smb, int level) pfData->FileNameLength; } else new_entry = old_entry + le32_to_cpu(pDirInfo->NextEntryOffset); - cFYI(1,("new entry %p old entry %p",new_entry,old_entry)); + cFYI(1, ("new entry %p old entry %p", new_entry, old_entry)); /* validate that new_entry is not past end of SMB */ if (new_entry >= end_of_smb) { cERROR(1, ("search entry %p began after end of SMB %p old entry %p", - new_entry, end_of_smb, old_entry)); + new_entry, end_of_smb, old_entry)); return NULL; } else if (((level == SMB_FIND_FILE_INFO_STANDARD) && - (new_entry + sizeof(FIND_FILE_STANDARD_INFO) > end_of_smb)) || - ((level != SMB_FIND_FILE_INFO_STANDARD) && + (new_entry + sizeof(FIND_FILE_STANDARD_INFO) > end_of_smb)) + || ((level != SMB_FIND_FILE_INFO_STANDARD) && (new_entry + sizeof(FILE_DIRECTORY_INFO) > end_of_smb))) { - cERROR(1,("search entry %p extends after end of SMB %p", + cERROR(1, ("search entry %p extends after end of SMB %p", new_entry, end_of_smb)); return NULL; - } else + } else return new_entry; } @@ -541,8 +543,8 @@ static char *nxt_dir_entry(char *old_entry, char *end_of_smb, int level) static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile) { int rc = 0; - char * filename = NULL; - int len = 0; + char *filename = NULL; + int len = 0; if (cfile->srch_inf.info_level == SMB_FIND_FILE_UNIX) { FILE_UNIX_INFO * pFindData = (FILE_UNIX_INFO *)current_entry; @@ -554,25 +556,25 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile) len = strnlen(filename, 5); } } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_DIRECTORY_INFO) { - FILE_DIRECTORY_INFO * pFindData = + FILE_DIRECTORY_INFO * pFindData = (FILE_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); - } else if (cfile->srch_inf.info_level == + } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) { - FILE_FULL_DIRECTORY_INFO * pFindData = + FILE_FULL_DIRECTORY_INFO * pFindData = (FILE_FULL_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_ID_FULL_DIR_INFO) { - SEARCH_ID_FULL_DIR_INFO * pFindData = + SEARCH_ID_FULL_DIR_INFO * pFindData = (SEARCH_ID_FULL_DIR_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); - } else if (cfile->srch_inf.info_level == + } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) { - FILE_BOTH_DIRECTORY_INFO * pFindData = + FILE_BOTH_DIRECTORY_INFO * pFindData = (FILE_BOTH_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); @@ -582,7 +584,8 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile) filename = &pFindData->FileName[0]; len = pFindData->FileNameLength; } else { - cFYI(1,("Unknown findfirst level %d",cfile->srch_inf.info_level)); + cFYI(1, ("Unknown findfirst level %d", + cfile->srch_inf.info_level)); } if (filename) { @@ -595,15 +598,15 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile) } else if (len == 4) { /* check for .. */ if ((ufilename[0] == UNICODE_DOT) - &&(ufilename[1] == UNICODE_DOT)) + && (ufilename[1] == UNICODE_DOT)) rc = 2; } } else /* ASCII */ { if (len == 1) { - if (filename[0] == '.') + if (filename[0] == '.') rc = 1; } else if (len == 2) { - if((filename[0] == '.') && (filename[1] == '.')) + if ((filename[0] == '.') && (filename[1] == '.')) rc = 2; } } @@ -614,7 +617,7 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile) /* Check if directory that we are searching has changed so we can decide whether we can use the cached search results from the previous search */ -static int is_dir_changed(struct file * file) +static int is_dir_changed(struct file *file) { struct inode *inode = file->f_path.dentry->d_inode; struct cifsInodeInfo *cifsInfo = CIFS_I(inode); @@ -633,22 +636,22 @@ static int is_dir_changed(struct file * file) /* We start counting in the buffer with entry 2 and increment for every entry (do not increment for . or .. entry) */ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon, - struct file *file, char **ppCurrentEntry, int *num_to_ret) + struct file *file, char **ppCurrentEntry, int *num_to_ret) { int rc = 0; int pos_in_buf = 0; loff_t first_entry_in_buffer; loff_t index_to_find = file->f_pos; - struct cifsFileInfo * cifsFile = file->private_data; + struct cifsFileInfo *cifsFile = file->private_data; /* check if index in the buffer */ - - if ((cifsFile == NULL) || (ppCurrentEntry == NULL) || + + if ((cifsFile == NULL) || (ppCurrentEntry == NULL) || (num_to_ret == NULL)) return -ENOENT; - + *ppCurrentEntry = NULL; - first_entry_in_buffer = - cifsFile->srch_inf.index_of_last_entry - + first_entry_in_buffer = + cifsFile->srch_inf.index_of_last_entry - cifsFile->srch_inf.entries_in_buffer; /* if first entry in buf is zero then is first buffer @@ -660,17 +663,17 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon, #ifdef CONFIG_CIFS_DEBUG2 dump_cifs_file_struct(file, "In fce "); #endif - if (((index_to_find < cifsFile->srch_inf.index_of_last_entry) && - is_dir_changed(file)) || + if (((index_to_find < cifsFile->srch_inf.index_of_last_entry) && + is_dir_changed(file)) || (index_to_find < first_entry_in_buffer)) { /* close and restart search */ - cFYI(1,("search backing up - close and restart search")); + cFYI(1, ("search backing up - close and restart search")); cifsFile->invalidHandle = TRUE; CIFSFindClose(xid, pTcon, cifsFile->netfid); kfree(cifsFile->search_resume_name); cifsFile->search_resume_name = NULL; if (cifsFile->srch_inf.ntwrk_buf_start) { - cFYI(1,("freeing SMB ff cache buf on search rewind")); + cFYI(1, ("freeing SMB ff cache buf on search rewind")); if (cifsFile->srch_inf.smallBuf) cifs_small_buf_release(cifsFile->srch_inf. ntwrk_buf_start); @@ -678,17 +681,18 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon, cifs_buf_release(cifsFile->srch_inf. ntwrk_buf_start); } - rc = initiate_cifs_search(xid,file); + rc = initiate_cifs_search(xid, file); if (rc) { - cFYI(1,("error %d reinitiating a search on rewind",rc)); + cFYI(1, ("error %d reinitiating a search on rewind", + rc)); return rc; } } - while((index_to_find >= cifsFile->srch_inf.index_of_last_entry) && - (rc == 0) && (cifsFile->srch_inf.endOfSearch == FALSE)){ - cFYI(1,("calling findnext2")); - rc = CIFSFindNext(xid,pTcon,cifsFile->netfid, + while ((index_to_find >= cifsFile->srch_inf.index_of_last_entry) && + (rc == 0) && (cifsFile->srch_inf.endOfSearch == FALSE)) { + cFYI(1, ("calling findnext2")); + rc = CIFSFindNext(xid, pTcon, cifsFile->netfid, &cifsFile->srch_inf); if (rc) return -ENOENT; @@ -697,8 +701,8 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon, /* we found the buffer that contains the entry */ /* scan and find it */ int i; - char * current_entry; - char * end_of_smb = cifsFile->srch_inf.ntwrk_buf_start + + char *current_entry; + char *end_of_smb = cifsFile->srch_inf.ntwrk_buf_start + smbCalcSize((struct smb_hdr *) cifsFile->srch_inf.ntwrk_buf_start); @@ -706,28 +710,28 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon, first_entry_in_buffer = cifsFile->srch_inf.index_of_last_entry - cifsFile->srch_inf.entries_in_buffer; pos_in_buf = index_to_find - first_entry_in_buffer; - cFYI(1,("found entry - pos_in_buf %d",pos_in_buf)); + cFYI(1, ("found entry - pos_in_buf %d", pos_in_buf)); - for(i=0;(i<(pos_in_buf)) && (current_entry != NULL);i++) { + for (i=0; (i < (pos_in_buf)) && (current_entry != NULL); i++) { /* go entry by entry figuring out which is first */ - current_entry = nxt_dir_entry(current_entry,end_of_smb, + current_entry = nxt_dir_entry(current_entry, end_of_smb, cifsFile->srch_inf.info_level); } - if((current_entry == NULL) && (i < pos_in_buf)) { + if ((current_entry == NULL) && (i < pos_in_buf)) { /* BB fixme - check if we should flag this error */ - cERROR(1,("reached end of buf searching for pos in buf" + cERROR(1, ("reached end of buf searching for pos in buf" " %d index to find %lld rc %d", - pos_in_buf,index_to_find,rc)); + pos_in_buf, index_to_find, rc)); } rc = 0; *ppCurrentEntry = current_entry; } else { - cFYI(1,("index not in buffer - could not findnext into it")); + cFYI(1, ("index not in buffer - could not findnext into it")); return 0; } - if(pos_in_buf >= cifsFile->srch_inf.entries_in_buffer) { - cFYI(1,("can not return entries pos_in_buf beyond last entry")); + if (pos_in_buf >= cifsFile->srch_inf.entries_in_buffer) { + cFYI(1, ("can not return entries pos_in_buf beyond last")); *num_to_ret = 0; } else *num_to_ret = cifsFile->srch_inf.entries_in_buffer - pos_in_buf; @@ -738,81 +742,81 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon, /* inode num, inode type and filename returned */ static int cifs_get_name_from_search_buf(struct qstr *pqst, char *current_entry, __u16 level, unsigned int unicode, - struct cifs_sb_info * cifs_sb, int max_len, ino_t *pinum) + struct cifs_sb_info *cifs_sb, int max_len, ino_t *pinum) { int rc = 0; unsigned int len = 0; - char * filename; - struct nls_table * nlt = cifs_sb->local_nls; + char *filename; + struct nls_table *nlt = cifs_sb->local_nls; *pinum = 0; - if(level == SMB_FIND_FILE_UNIX) { - FILE_UNIX_INFO * pFindData = (FILE_UNIX_INFO *)current_entry; + if (level == SMB_FIND_FILE_UNIX) { + FILE_UNIX_INFO *pFindData = (FILE_UNIX_INFO *)current_entry; filename = &pFindData->FileName[0]; - if(unicode) { + if (unicode) { len = cifs_unicode_bytelen(filename); } else { /* BB should we make this strnlen of PATH_MAX? */ len = strnlen(filename, PATH_MAX); } - /* BB fixme - hash low and high 32 bits if not 64 bit arch BB fixme */ - if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) + /* BB fixme - hash low and high 32 bits if not 64 bit arch BB */ + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) *pinum = pFindData->UniqueId; - } else if(level == SMB_FIND_FILE_DIRECTORY_INFO) { - FILE_DIRECTORY_INFO * pFindData = + } else if (level == SMB_FIND_FILE_DIRECTORY_INFO) { + FILE_DIRECTORY_INFO *pFindData = (FILE_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); - } else if(level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) { - FILE_FULL_DIRECTORY_INFO * pFindData = + } else if (level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) { + FILE_FULL_DIRECTORY_INFO *pFindData = (FILE_FULL_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); - } else if(level == SMB_FIND_FILE_ID_FULL_DIR_INFO) { - SEARCH_ID_FULL_DIR_INFO * pFindData = + } else if (level == SMB_FIND_FILE_ID_FULL_DIR_INFO) { + SEARCH_ID_FULL_DIR_INFO *pFindData = (SEARCH_ID_FULL_DIR_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); *pinum = pFindData->UniqueId; - } else if(level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) { - FILE_BOTH_DIRECTORY_INFO * pFindData = + } else if (level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) { + FILE_BOTH_DIRECTORY_INFO *pFindData = (FILE_BOTH_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); - } else if(level == SMB_FIND_FILE_INFO_STANDARD) { + } else if (level == SMB_FIND_FILE_INFO_STANDARD) { FIND_FILE_STANDARD_INFO * pFindData = (FIND_FILE_STANDARD_INFO *)current_entry; filename = &pFindData->FileName[0]; /* one byte length, no name conversion */ len = (unsigned int)pFindData->FileNameLength; } else { - cFYI(1,("Unknown findfirst level %d",level)); + cFYI(1, ("Unknown findfirst level %d", level)); return -EINVAL; } - if(len > max_len) { - cERROR(1,("bad search response length %d past smb end", len)); + if (len > max_len) { + cERROR(1, ("bad search response length %d past smb end", len)); return -EINVAL; } - if(unicode) { + if (unicode) { /* BB fixme - test with long names */ /* Note converted filename can be longer than in unicode */ - if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR) + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR) pqst->len = cifs_convertUCSpath((char *)pqst->name, (__le16 *)filename, len/2, nlt); else pqst->len = cifs_strfromUCS_le((char *)pqst->name, - (__le16 *)filename,len/2,nlt); + (__le16 *)filename, len/2, nlt); } else { pqst->name = filename; pqst->len = len; } - pqst->hash = full_name_hash(pqst->name,pqst->len); -/* cFYI(1,("filldir on %s",pqst->name)); */ + pqst->hash = full_name_hash(pqst->name, pqst->len); +/* cFYI(1, ("filldir on %s",pqst->name)); */ return rc; } @@ -821,49 +825,50 @@ static int cifs_filldir(char *pfindEntry, struct file *file, { int rc = 0; struct qstr qstring; - struct cifsFileInfo * pCifsF; + struct cifsFileInfo *pCifsF; unsigned obj_type; ino_t inum; - struct cifs_sb_info * cifs_sb; + struct cifs_sb_info *cifs_sb; struct inode *tmp_inode; struct dentry *tmp_dentry; /* get filename and len into qstring */ /* get dentry */ /* decide whether to create and populate ionde */ - if((direntry == NULL) || (file == NULL)) + if ((direntry == NULL) || (file == NULL)) return -EINVAL; pCifsF = file->private_data; - - if((scratch_buf == NULL) || (pfindEntry == NULL) || (pCifsF == NULL)) + + if ((scratch_buf == NULL) || (pfindEntry == NULL) || (pCifsF == NULL)) return -ENOENT; - rc = cifs_entry_is_dot(pfindEntry,pCifsF); + rc = cifs_entry_is_dot(pfindEntry, pCifsF); /* skip . and .. since we added them first */ - if(rc != 0) + if (rc != 0) return 0; cifs_sb = CIFS_SB(file->f_path.dentry->d_sb); qstring.name = scratch_buf; - rc = cifs_get_name_from_search_buf(&qstring,pfindEntry, + rc = cifs_get_name_from_search_buf(&qstring, pfindEntry, pCifsF->srch_inf.info_level, - pCifsF->srch_inf.unicode,cifs_sb, + pCifsF->srch_inf.unicode, cifs_sb, max_len, &inum /* returned */); - if(rc) + if (rc) return rc; - rc = construct_dentry(&qstring,file,&tmp_inode, &tmp_dentry); - if((tmp_inode == NULL) || (tmp_dentry == NULL)) + rc = construct_dentry(&qstring, file, &tmp_inode, &tmp_dentry); + if ((tmp_inode == NULL) || (tmp_dentry == NULL)) return -ENOMEM; - if(rc) { + if (rc) { /* inode created, we need to hash it with right inode number */ - if(inum != 0) { - /* BB fixme - hash the 2 32 quantities bits together if necessary BB */ + if (inum != 0) { + /* BB fixme - hash the 2 32 quantities bits together if + * necessary BB */ tmp_inode->i_ino = inum; } insert_inode_hash(tmp_inode); @@ -872,27 +877,27 @@ static int cifs_filldir(char *pfindEntry, struct file *file, /* we pass in rc below, indicating whether it is a new inode, so we can figure out whether to invalidate the inode cached data if the file has changed */ - if(pCifsF->srch_inf.info_level == SMB_FIND_FILE_UNIX) + if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_UNIX) unix_fill_in_inode(tmp_inode, (FILE_UNIX_INFO *)pfindEntry, &obj_type, rc); - else if(pCifsF->srch_inf.info_level == SMB_FIND_FILE_INFO_STANDARD) + else if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_INFO_STANDARD) fill_in_inode(tmp_inode, 0 /* old level 1 buffer type */, pfindEntry, &obj_type, rc); else fill_in_inode(tmp_inode, 1 /* NT */, pfindEntry, &obj_type, rc); - if(rc) /* new inode - needs to be tied to dentry */ { + if (rc) /* new inode - needs to be tied to dentry */ { d_instantiate(tmp_dentry, tmp_inode); - if(rc == 2) + if (rc == 2) d_rehash(tmp_dentry); } - - - rc = filldir(direntry,qstring.name,qstring.len,file->f_pos, - tmp_inode->i_ino,obj_type); - if(rc) { - cFYI(1,("filldir rc = %d",rc)); + + + rc = filldir(direntry, qstring.name, qstring.len, file->f_pos, + tmp_inode->i_ino, obj_type); + if (rc) { + cFYI(1, ("filldir rc = %d", rc)); /* we can not return filldir errors to the caller since they are "normal" when the stat blocksize is too small - we return remapped error instead */ @@ -909,57 +914,57 @@ static int cifs_save_resume_key(const char *current_entry, int rc = 0; unsigned int len = 0; __u16 level; - char * filename; + char *filename; - if((cifsFile == NULL) || (current_entry == NULL)) + if ((cifsFile == NULL) || (current_entry == NULL)) return -EINVAL; level = cifsFile->srch_inf.info_level; - if(level == SMB_FIND_FILE_UNIX) { + if (level == SMB_FIND_FILE_UNIX) { FILE_UNIX_INFO * pFindData = (FILE_UNIX_INFO *)current_entry; filename = &pFindData->FileName[0]; - if(cifsFile->srch_inf.unicode) { + if (cifsFile->srch_inf.unicode) { len = cifs_unicode_bytelen(filename); } else { /* BB should we make this strnlen of PATH_MAX? */ len = strnlen(filename, PATH_MAX); } cifsFile->srch_inf.resume_key = pFindData->ResumeKey; - } else if(level == SMB_FIND_FILE_DIRECTORY_INFO) { - FILE_DIRECTORY_INFO * pFindData = + } else if (level == SMB_FIND_FILE_DIRECTORY_INFO) { + FILE_DIRECTORY_INFO *pFindData = (FILE_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); cifsFile->srch_inf.resume_key = pFindData->FileIndex; - } else if(level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) { - FILE_FULL_DIRECTORY_INFO * pFindData = + } else if (level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) { + FILE_FULL_DIRECTORY_INFO *pFindData = (FILE_FULL_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); cifsFile->srch_inf.resume_key = pFindData->FileIndex; - } else if(level == SMB_FIND_FILE_ID_FULL_DIR_INFO) { - SEARCH_ID_FULL_DIR_INFO * pFindData = + } else if (level == SMB_FIND_FILE_ID_FULL_DIR_INFO) { + SEARCH_ID_FULL_DIR_INFO *pFindData = (SEARCH_ID_FULL_DIR_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); cifsFile->srch_inf.resume_key = pFindData->FileIndex; - } else if(level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) { - FILE_BOTH_DIRECTORY_INFO * pFindData = + } else if (level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) { + FILE_BOTH_DIRECTORY_INFO *pFindData = (FILE_BOTH_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); cifsFile->srch_inf.resume_key = pFindData->FileIndex; - } else if(level == SMB_FIND_FILE_INFO_STANDARD) { - FIND_FILE_STANDARD_INFO * pFindData = + } else if (level == SMB_FIND_FILE_INFO_STANDARD) { + FIND_FILE_STANDARD_INFO *pFindData = (FIND_FILE_STANDARD_INFO *)current_entry; filename = &pFindData->FileName[0]; /* one byte length, no name conversion */ len = (unsigned int)pFindData->FileNameLength; cifsFile->srch_inf.resume_key = pFindData->ResumeKey; } else { - cFYI(1,("Unknown findfirst level %d",level)); + cFYI(1, ("Unknown findfirst level %d", level)); return -EINVAL; } cifsFile->srch_inf.resume_name_len = len; @@ -970,21 +975,21 @@ static int cifs_save_resume_key(const char *current_entry, int cifs_readdir(struct file *file, void *direntry, filldir_t filldir) { int rc = 0; - int xid,i; + int xid, i; struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; struct cifsFileInfo *cifsFile = NULL; - char * current_entry; + char *current_entry; int num_to_fill = 0; - char * tmp_buf = NULL; - char * end_of_smb; + char *tmp_buf = NULL; + char *end_of_smb; int max_len; xid = GetXid(); cifs_sb = CIFS_SB(file->f_path.dentry->d_sb); pTcon = cifs_sb->tcon; - if(pTcon == NULL) + if (pTcon == NULL) return -EINVAL; switch ((int) file->f_pos) { @@ -1005,27 +1010,27 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir) } file->f_pos++; default: - /* 1) If search is active, - is in current search buffer? + /* 1) If search is active, + is in current search buffer? if it before then restart search if after then keep searching till find it */ - if(file->private_data == NULL) { - rc = initiate_cifs_search(xid,file); - cFYI(1,("initiate cifs search rc %d",rc)); - if(rc) { + if (file->private_data == NULL) { + rc = initiate_cifs_search(xid, file); + cFYI(1, ("initiate cifs search rc %d", rc)); + if (rc) { FreeXid(xid); return rc; } } - if(file->private_data == NULL) { + if (file->private_data == NULL) { rc = -EINVAL; FreeXid(xid); return rc; } cifsFile = file->private_data; if (cifsFile->srch_inf.endOfSearch) { - if(cifsFile->srch_inf.emptyDir) { + if (cifsFile->srch_inf.emptyDir) { cFYI(1, ("End of search, empty dir")); rc = 0; break; @@ -1033,23 +1038,23 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir) } /* else { cifsFile->invalidHandle = TRUE; CIFSFindClose(xid, pTcon, cifsFile->netfid); - } + } kfree(cifsFile->search_resume_name); cifsFile->search_resume_name = NULL; */ - rc = find_cifs_entry(xid,pTcon, file, - ¤t_entry,&num_to_fill); - if(rc) { - cFYI(1,("fce error %d",rc)); + rc = find_cifs_entry(xid, pTcon, file, + ¤t_entry, &num_to_fill); + if (rc) { + cFYI(1, ("fce error %d", rc)); goto rddir2_exit; } else if (current_entry != NULL) { - cFYI(1,("entry %lld found",file->f_pos)); + cFYI(1, ("entry %lld found", file->f_pos)); } else { - cFYI(1,("could not find entry")); + cFYI(1, ("could not find entry")); goto rddir2_exit; } - cFYI(1,("loop through %d times filling dir for net buf %p", - num_to_fill,cifsFile->srch_inf.ntwrk_buf_start)); + cFYI(1, ("loop through %d times filling dir for net buf %p", + num_to_fill, cifsFile->srch_inf.ntwrk_buf_start)); max_len = smbCalcSize((struct smb_hdr *) cifsFile->srch_inf.ntwrk_buf_start); end_of_smb = cifsFile->srch_inf.ntwrk_buf_start + max_len; @@ -1059,8 +1064,8 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir) such multibyte target UTF-8 characters. cifs_unicode.c, which actually does the conversion, has the same limit */ tmp_buf = kmalloc((2 * NAME_MAX) + 4, GFP_KERNEL); - for(i=0;(i<num_to_fill) && (rc == 0);i++) { - if(current_entry == NULL) { + for (i = 0; (i < num_to_fill) && (rc == 0); i++) { + if (current_entry == NULL) { /* evaluate whether this case is an error */ cERROR(1,("past end of SMB num to fill %d i %d", num_to_fill, i)); @@ -1070,20 +1075,20 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir) we want to check for that here? */ rc = cifs_filldir(current_entry, file, filldir, direntry, tmp_buf, max_len); - if(rc == -EOVERFLOW) { + if (rc == -EOVERFLOW) { rc = 0; break; } file->f_pos++; - if(file->f_pos == + if (file->f_pos == cifsFile->srch_inf.index_of_last_entry) { - cFYI(1,("last entry in buf at pos %lld %s", - file->f_pos,tmp_buf)); - cifs_save_resume_key(current_entry,cifsFile); + cFYI(1, ("last entry in buf at pos %lld %s", + file->f_pos, tmp_buf)); + cifs_save_resume_key(current_entry, cifsFile); break; - } else - current_entry = + } else + current_entry = nxt_dir_entry(current_entry, end_of_smb, cifsFile->srch_inf.info_level); } diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index 75846463089..2ea027dda21 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -3,7 +3,7 @@ * * SMB/CIFS session setup handling routines * - * Copyright (c) International Business Machines Corp., 2006 + * Copyright (c) International Business Machines Corp., 2006, 2007 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify @@ -31,7 +31,7 @@ #include <linux/utsname.h> extern void SMBNTencrypt(unsigned char *passwd, unsigned char *c8, - unsigned char *p24); + unsigned char *p24); static __u32 cifs_ssetup_hdr(struct cifsSesInfo *ses, SESSION_SETUP_ANDX *pSMB) { @@ -45,13 +45,14 @@ static __u32 cifs_ssetup_hdr(struct cifsSesInfo *ses, SESSION_SETUP_ANDX *pSMB) /* Now no need to set SMBFLG_CASELESS or obsolete CANONICAL PATH */ - /* BB verify whether signing required on neg or just on auth frame + /* BB verify whether signing required on neg or just on auth frame (and NTLM case) */ capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS | CAP_LARGE_WRITE_X | CAP_LARGE_READ_X; - if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) + if (ses->server->secMode & + (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) pSMB->req.hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; if (ses->capabilities & CAP_UNICODE) { @@ -74,10 +75,10 @@ static __u32 cifs_ssetup_hdr(struct cifsSesInfo *ses, SESSION_SETUP_ANDX *pSMB) return capabilities; } -static void unicode_ssetup_strings(char ** pbcc_area, struct cifsSesInfo *ses, - const struct nls_table * nls_cp) +static void unicode_ssetup_strings(char **pbcc_area, struct cifsSesInfo *ses, + const struct nls_table *nls_cp) { - char * bcc_ptr = *pbcc_area; + char *bcc_ptr = *pbcc_area; int bytes_ret = 0; /* BB FIXME add check that strings total less @@ -89,7 +90,7 @@ static void unicode_ssetup_strings(char ** pbcc_area, struct cifsSesInfo *ses, bcc_ptr++; } */ /* copy user */ - if(ses->userName == NULL) { + if (ses->userName == NULL) { /* null user mount */ *bcc_ptr = 0; *(bcc_ptr+1) = 0; @@ -100,14 +101,14 @@ static void unicode_ssetup_strings(char ** pbcc_area, struct cifsSesInfo *ses, bcc_ptr += 2 * bytes_ret; bcc_ptr += 2; /* account for null termination */ /* copy domain */ - if(ses->domainName == NULL) { + if (ses->domainName == NULL) { /* Sending null domain better than using a bogus domain name (as we did briefly in 2.6.18) since server will use its default */ *bcc_ptr = 0; *(bcc_ptr+1) = 0; bytes_ret = 0; } else - bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, ses->domainName, + bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, ses->domainName, 256, nls_cp); bcc_ptr += 2 * bytes_ret; bcc_ptr += 2; /* account for null terminator */ @@ -122,37 +123,37 @@ static void unicode_ssetup_strings(char ** pbcc_area, struct cifsSesInfo *ses, bcc_ptr += 2; /* trailing null */ bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, CIFS_NETWORK_OPSYS, - 32, nls_cp); + 32, nls_cp); bcc_ptr += 2 * bytes_ret; bcc_ptr += 2; /* trailing null */ *pbcc_area = bcc_ptr; } -static void ascii_ssetup_strings(char ** pbcc_area, struct cifsSesInfo *ses, - const struct nls_table * nls_cp) +static void ascii_ssetup_strings(char **pbcc_area, struct cifsSesInfo *ses, + const struct nls_table *nls_cp) { - char * bcc_ptr = *pbcc_area; + char *bcc_ptr = *pbcc_area; /* copy user */ /* BB what about null user mounts - check that we do this BB */ - /* copy user */ - if(ses->userName == NULL) { - /* BB what about null user mounts - check that we do this BB */ - } else { /* 300 should be long enough for any conceivable user name */ - strncpy(bcc_ptr, ses->userName, 300); - } + /* copy user */ + if (ses->userName == NULL) { + /* BB what about null user mounts - check that we do this BB */ + } else { /* 300 should be long enough for any conceivable user name */ + strncpy(bcc_ptr, ses->userName, 300); + } /* BB improve check for overflow */ - bcc_ptr += strnlen(ses->userName, 300); + bcc_ptr += strnlen(ses->userName, 300); *bcc_ptr = 0; - bcc_ptr++; /* account for null termination */ + bcc_ptr++; /* account for null termination */ - /* copy domain */ - - if(ses->domainName != NULL) { - strncpy(bcc_ptr, ses->domainName, 256); + /* copy domain */ + + if (ses->domainName != NULL) { + strncpy(bcc_ptr, ses->domainName, 256); bcc_ptr += strnlen(ses->domainName, 256); - } /* else we will send a null domain name + } /* else we will send a null domain name so the server will default to its own domain */ *bcc_ptr = 0; bcc_ptr++; @@ -167,19 +168,20 @@ static void ascii_ssetup_strings(char ** pbcc_area, struct cifsSesInfo *ses, strcpy(bcc_ptr, CIFS_NETWORK_OPSYS); bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1; - *pbcc_area = bcc_ptr; + *pbcc_area = bcc_ptr; } -static int decode_unicode_ssetup(char ** pbcc_area, int bleft, struct cifsSesInfo *ses, - const struct nls_table * nls_cp) +static int decode_unicode_ssetup(char **pbcc_area, int bleft, + struct cifsSesInfo *ses, + const struct nls_table *nls_cp) { int rc = 0; int words_left, len; - char * data = *pbcc_area; + char *data = *pbcc_area; - cFYI(1,("bleft %d",bleft)); + cFYI(1, ("bleft %d", bleft)); /* SMB header is unaligned, so cifs servers word align start of @@ -189,7 +191,7 @@ static int decode_unicode_ssetup(char ** pbcc_area, int bleft, struct cifsSesInf their final Unicode string - in which case we now will not attempt to decode the byte of junk which follows it */ - + words_left = bleft / 2; /* save off server operating system */ @@ -198,14 +200,14 @@ static int decode_unicode_ssetup(char ** pbcc_area, int bleft, struct cifsSesInf /* We look for obvious messed up bcc or strings in response so we do not go off the end since (at least) WIN2K and Windows XP have a major bug in not null terminating last Unicode string in response */ - if(len >= words_left) + if (len >= words_left) return rc; - if(ses->serverOS) + if (ses->serverOS) kfree(ses->serverOS); /* UTF-8 string will not grow more than four times as big as UCS-16 */ ses->serverOS = kzalloc(4 * len, GFP_KERNEL); - if(ses->serverOS != NULL) { + if (ses->serverOS != NULL) { cifs_strfromUCS_le(ses->serverOS, (__le16 *)data, len, nls_cp); } @@ -215,67 +217,68 @@ static int decode_unicode_ssetup(char ** pbcc_area, int bleft, struct cifsSesInf /* save off server network operating system */ len = UniStrnlen((wchar_t *) data, words_left); - if(len >= words_left) + if (len >= words_left) return rc; - if(ses->serverNOS) + if (ses->serverNOS) kfree(ses->serverNOS); ses->serverNOS = kzalloc(4 * len, GFP_KERNEL); /* BB this is wrong length FIXME BB */ - if(ses->serverNOS != NULL) { + if (ses->serverNOS != NULL) { cifs_strfromUCS_le(ses->serverNOS, (__le16 *)data, len, nls_cp); - if(strncmp(ses->serverNOS, "NT LAN Manager 4",16) == 0) { - cFYI(1,("NT4 server")); + if (strncmp(ses->serverNOS, "NT LAN Manager 4", 16) == 0) { + cFYI(1, ("NT4 server")); ses->flags |= CIFS_SES_NT4; } } data += 2 * (len + 1); words_left -= len + 1; - /* save off server domain */ - len = UniStrnlen((wchar_t *) data, words_left); - - if(len > words_left) - return rc; - - if(ses->serverDomain) - kfree(ses->serverDomain); - ses->serverDomain = kzalloc(2 * (len + 1), GFP_KERNEL); /* BB FIXME wrong length */ - if(ses->serverDomain != NULL) { - cifs_strfromUCS_le(ses->serverDomain, (__le16 *)data, len, - nls_cp); - ses->serverDomain[2*len] = 0; - ses->serverDomain[(2*len) + 1] = 0; - } - data += 2 * (len + 1); - words_left -= len + 1; - - cFYI(1,("words left: %d",words_left)); + /* save off server domain */ + len = UniStrnlen((wchar_t *) data, words_left); + + if (len > words_left) + return rc; + + if (ses->serverDomain) + kfree(ses->serverDomain); + ses->serverDomain = kzalloc(2 * (len + 1), GFP_KERNEL); /* BB FIXME wrong length */ + if (ses->serverDomain != NULL) { + cifs_strfromUCS_le(ses->serverDomain, (__le16 *)data, len, + nls_cp); + ses->serverDomain[2*len] = 0; + ses->serverDomain[(2*len) + 1] = 0; + } + data += 2 * (len + 1); + words_left -= len + 1; + + cFYI(1, ("words left: %d", words_left)); return rc; } -static int decode_ascii_ssetup(char ** pbcc_area, int bleft, struct cifsSesInfo *ses, - const struct nls_table * nls_cp) +static int decode_ascii_ssetup(char **pbcc_area, int bleft, + struct cifsSesInfo *ses, + const struct nls_table *nls_cp) { int rc = 0; int len; - char * bcc_ptr = *pbcc_area; + char *bcc_ptr = *pbcc_area; + + cFYI(1, ("decode sessetup ascii. bleft %d", bleft)); - cFYI(1,("decode sessetup ascii. bleft %d", bleft)); - len = strnlen(bcc_ptr, bleft); - if(len >= bleft) + if (len >= bleft) return rc; - - if(ses->serverOS) + + if (ses->serverOS) kfree(ses->serverOS); ses->serverOS = kzalloc(len + 1, GFP_KERNEL); - if(ses->serverOS) + if (ses->serverOS) strncpy(ses->serverOS, bcc_ptr, len); - if(strncmp(ses->serverOS, "OS/2",4) == 0) { - cFYI(1,("OS/2 server")); + if (strncmp(ses->serverOS, "OS/2", 4) == 0) { + cFYI(1, ("OS/2 server")); ses->flags |= CIFS_SES_OS2; } @@ -283,34 +286,34 @@ static int decode_ascii_ssetup(char ** pbcc_area, int bleft, struct cifsSesInfo bleft -= len + 1; len = strnlen(bcc_ptr, bleft); - if(len >= bleft) + if (len >= bleft) return rc; - if(ses->serverNOS) + if (ses->serverNOS) kfree(ses->serverNOS); ses->serverNOS = kzalloc(len + 1, GFP_KERNEL); - if(ses->serverNOS) + if (ses->serverNOS) strncpy(ses->serverNOS, bcc_ptr, len); bcc_ptr += len + 1; bleft -= len + 1; - len = strnlen(bcc_ptr, bleft); - if(len > bleft) - return rc; + len = strnlen(bcc_ptr, bleft); + if (len > bleft) + return rc; /* No domain field in LANMAN case. Domain is returned by old servers in the SMB negprot response */ /* BB For newer servers which do not support Unicode, but thus do return domain here we could add parsing for it later, but it is not very important */ - cFYI(1,("ascii: bytes left %d",bleft)); + cFYI(1, ("ascii: bytes left %d", bleft)); return rc; } -int +int CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, const struct nls_table *nls_cp) { @@ -328,13 +331,13 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, __u16 action; int bytes_remaining; - if(ses == NULL) + if (ses == NULL) return -EINVAL; type = ses->server->secType; - cFYI(1,("sess setup type %d",type)); - if(type == LANMAN) { + cFYI(1, ("sess setup type %d", type)); + if (type == LANMAN) { #ifndef CONFIG_CIFS_WEAK_PW_HASH /* LANMAN and plaintext are less secure and off by default. So we make this explicitly be turned on in kconfig (in the @@ -344,15 +347,15 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, return -EOPNOTSUPP; #endif wct = 10; /* lanman 2 style sessionsetup */ - } else if((type == NTLM) || (type == NTLMv2)) { + } else if ((type == NTLM) || (type == NTLMv2)) { /* For NTLMv2 failures eventually may need to retry NTLM */ wct = 13; /* old style NTLM sessionsetup */ - } else /* same size for negotiate or auth, NTLMSSP or extended security */ + } else /* same size: negotiate or auth, NTLMSSP or extended security */ wct = 12; rc = small_smb_init_no_tc(SMB_COM_SESSION_SETUP_ANDX, wct, ses, (void **)&smb_buf); - if(rc) + if (rc) return rc; pSMB = (SESSION_SETUP_ANDX *)smb_buf; @@ -364,8 +367,8 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, second part which will include the strings and rest of bcc area, in order to avoid having to do a large buffer 17K allocation */ - iov[0].iov_base = (char *)pSMB; - iov[0].iov_len = smb_buf->smb_buf_length + 4; + iov[0].iov_base = (char *)pSMB; + iov[0].iov_len = smb_buf->smb_buf_length + 4; /* 2000 big enough to fit max user, domain, NOS name etc. */ str_area = kmalloc(2000, GFP_KERNEL); @@ -373,18 +376,18 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, ses->flags &= ~CIFS_SES_LANMAN; - if(type == LANMAN) { + if (type == LANMAN) { #ifdef CONFIG_CIFS_WEAK_PW_HASH char lnm_session_key[CIFS_SESS_KEY_SIZE]; /* no capabilities flags in old lanman negotiation */ - pSMB->old_req.PasswordLength = cpu_to_le16(CIFS_SESS_KEY_SIZE); + pSMB->old_req.PasswordLength = cpu_to_le16(CIFS_SESS_KEY_SIZE); /* BB calculate hash with password */ /* and copy into bcc */ calc_lanman_hash(ses, lnm_session_key); - ses->flags |= CIFS_SES_LANMAN; + ses->flags |= CIFS_SES_LANMAN; /* #ifdef CONFIG_CIFS_DEBUG2 cifs_dump_mem("cryptkey: ",ses->server->cryptKey, CIFS_SESS_KEY_SIZE); @@ -397,10 +400,10 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, changed to do higher than lanman dialect and we reconnected would we ever calc signing_key? */ - cFYI(1,("Negotiating LANMAN setting up strings")); + cFYI(1, ("Negotiating LANMAN setting up strings")); /* Unicode not allowed for LANMAN dialects */ ascii_ssetup_strings(&bcc_ptr, ses, nls_cp); -#endif +#endif } else if (type == NTLM) { char ntlm_session_key[CIFS_SESS_KEY_SIZE]; @@ -409,38 +412,38 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, cpu_to_le16(CIFS_SESS_KEY_SIZE); pSMB->req_no_secext.CaseSensitivePasswordLength = cpu_to_le16(CIFS_SESS_KEY_SIZE); - + /* calculate session key */ SMBNTencrypt(ses->password, ses->server->cryptKey, ntlm_session_key); - if(first_time) /* should this be moved into common code + if (first_time) /* should this be moved into common code with similar ntlmv2 path? */ - cifs_calculate_mac_key(ses->server->mac_signing_key, + cifs_calculate_mac_key(&ses->server->mac_signing_key, ntlm_session_key, ses->password); /* copy session key */ - memcpy(bcc_ptr, (char *)ntlm_session_key,CIFS_SESS_KEY_SIZE); + memcpy(bcc_ptr, (char *)ntlm_session_key, CIFS_SESS_KEY_SIZE); bcc_ptr += CIFS_SESS_KEY_SIZE; - memcpy(bcc_ptr, (char *)ntlm_session_key,CIFS_SESS_KEY_SIZE); + memcpy(bcc_ptr, (char *)ntlm_session_key, CIFS_SESS_KEY_SIZE); bcc_ptr += CIFS_SESS_KEY_SIZE; - if(ses->capabilities & CAP_UNICODE) { + if (ses->capabilities & CAP_UNICODE) { /* unicode strings must be word aligned */ if (iov[0].iov_len % 2) { *bcc_ptr = 0; - bcc_ptr++; - } + bcc_ptr++; + } unicode_ssetup_strings(&bcc_ptr, ses, nls_cp); } else ascii_ssetup_strings(&bcc_ptr, ses, nls_cp); } else if (type == NTLMv2) { - char * v2_sess_key = + char *v2_sess_key = kmalloc(sizeof(struct ntlmv2_resp), GFP_KERNEL); /* BB FIXME change all users of v2_sess_key to struct ntlmv2_resp */ - if(v2_sess_key == NULL) { + if (v2_sess_key == NULL) { cifs_small_buf_release(smb_buf); return -ENOMEM; } @@ -456,8 +459,8 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, /* calculate session key */ setup_ntlmv2_rsp(ses, v2_sess_key, nls_cp); - if(first_time) /* should this be moved into common code - with similar ntlmv2 path? */ + if (first_time) /* should this be moved into common code + with similar ntlmv2 path? */ /* cifs_calculate_ntlmv2_mac_key(ses->server->mac_signing_key, response BB FIXME, v2_sess_key); */ @@ -465,11 +468,12 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, /* memcpy(bcc_ptr, (char *)ntlm_session_key,LM2_SESS_KEY_SIZE); bcc_ptr += LM2_SESS_KEY_SIZE; */ - memcpy(bcc_ptr, (char *)v2_sess_key, sizeof(struct ntlmv2_resp)); + memcpy(bcc_ptr, (char *)v2_sess_key, + sizeof(struct ntlmv2_resp)); bcc_ptr += sizeof(struct ntlmv2_resp); kfree(v2_sess_key); - if(ses->capabilities & CAP_UNICODE) { - if(iov[0].iov_len % 2) { + if (ses->capabilities & CAP_UNICODE) { + if (iov[0].iov_len % 2) { *bcc_ptr = 0; } bcc_ptr++; unicode_ssetup_strings(&bcc_ptr, ses, nls_cp); @@ -488,20 +492,20 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, BCC_LE(smb_buf) = cpu_to_le16(count); iov[1].iov_base = str_area; - iov[1].iov_len = count; + iov[1].iov_len = count; rc = SendReceive2(xid, ses, iov, 2 /* num_iovecs */, &resp_buf_type, 0); /* SMB request buf freed in SendReceive2 */ - cFYI(1,("ssetup rc from sendrecv2 is %d",rc)); - if(rc) + cFYI(1, ("ssetup rc from sendrecv2 is %d", rc)); + if (rc) goto ssetup_exit; pSMB = (SESSION_SETUP_ANDX *)iov[0].iov_base; smb_buf = (struct smb_hdr *)iov[0].iov_base; - if((smb_buf->WordCount != 3) && (smb_buf->WordCount != 4)) { + if ((smb_buf->WordCount != 3) && (smb_buf->WordCount != 4)) { rc = -EIO; - cERROR(1,("bad word count %d", smb_buf->WordCount)); + cERROR(1, ("bad word count %d", smb_buf->WordCount)); goto ssetup_exit; } action = le16_to_cpu(pSMB->resp.Action); @@ -514,31 +518,32 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, bytes_remaining = BCC(smb_buf); bcc_ptr = pByteArea(smb_buf); - if(smb_buf->WordCount == 4) { + if (smb_buf->WordCount == 4) { __u16 blob_len; blob_len = le16_to_cpu(pSMB->resp.SecurityBlobLength); bcc_ptr += blob_len; - if(blob_len > bytes_remaining) { - cERROR(1,("bad security blob length %d", blob_len)); + if (blob_len > bytes_remaining) { + cERROR(1, ("bad security blob length %d", blob_len)); rc = -EINVAL; goto ssetup_exit; } bytes_remaining -= blob_len; - } + } /* BB check if Unicode and decode strings */ - if(smb_buf->Flags2 & SMBFLG2_UNICODE) + if (smb_buf->Flags2 & SMBFLG2_UNICODE) rc = decode_unicode_ssetup(&bcc_ptr, bytes_remaining, ses, nls_cp); else - rc = decode_ascii_ssetup(&bcc_ptr, bytes_remaining, ses,nls_cp); - + rc = decode_ascii_ssetup(&bcc_ptr, bytes_remaining, + ses, nls_cp); + ssetup_exit: kfree(str_area); - if(resp_buf_type == CIFS_SMALL_BUFFER) { - cFYI(1,("ssetup freeing small buf %p", iov[0].iov_base)); + if (resp_buf_type == CIFS_SMALL_BUFFER) { + cFYI(1, ("ssetup freeing small buf %p", iov[0].iov_base)); cifs_small_buf_release(iov[0].iov_base); - } else if(resp_buf_type == CIFS_LARGE_BUFFER) + } else if (resp_buf_type == CIFS_LARGE_BUFFER) cifs_buf_release(iov[0].iov_base); return rc; diff --git a/fs/cifs/smbdes.c b/fs/cifs/smbdes.c index 1b1daf63f06..cfa6d21fb4e 100644 --- a/fs/cifs/smbdes.c +++ b/fs/cifs/smbdes.c @@ -1,32 +1,32 @@ -/* +/* Unix SMB/Netbios implementation. Version 1.9. - a partial implementation of DES designed for use in the + a partial implementation of DES designed for use in the SMB authentication protocol Copyright (C) Andrew Tridgell 1998 Modified by Steve French (sfrench@us.ibm.com) 2002,2004 - + This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. - + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. - + You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -/* NOTES: +/* NOTES: This code makes no attempt to be fast! In fact, it is a very - slow implementation + slow implementation This code is NOT a complete DES implementation. It implements only the minimum necessary for SMB authentication, as used by all SMB @@ -153,7 +153,7 @@ static uchar sbox[8][4][16] = { }; static void -permute(char *out, char *in, uchar * p, int n) +permute(char *out, char *in, uchar *p, int n) { int i; for (i = 0; i < n; i++) @@ -202,18 +202,18 @@ dohash(char *out, char *in, char *key, int forw) char *rl; /* Have to reduce stack usage */ - pk1 = kmalloc(56+56+64+64,GFP_KERNEL); - if(pk1 == NULL) + pk1 = kmalloc(56+56+64+64, GFP_KERNEL); + if (pk1 == NULL) return; ki = kmalloc(16*48, GFP_KERNEL); - if(ki == NULL) { + if (ki == NULL) { kfree(pk1); return; } cd = pk1 + 56; - pd1= cd + 56; + pd1 = cd + 56; rl = pd1 + 64; permute(pk1, key, perm1, 56); @@ -247,7 +247,7 @@ dohash(char *out, char *in, char *key, int forw) char *r2; /* r2[32] */ er = kmalloc(48+48+32+32+32, GFP_KERNEL); - if(er == NULL) { + if (er == NULL) { kfree(pk1); kfree(ki); return; @@ -327,8 +327,8 @@ smbhash(unsigned char *out, unsigned char *in, unsigned char *key, int forw) char *keyb; /* keyb[64] */ unsigned char key2[8]; - outb = kmalloc(64 * 3,GFP_KERNEL); - if(outb == NULL) + outb = kmalloc(64 * 3, GFP_KERNEL); + if (outb == NULL) return; inb = outb + 64; diff --git a/fs/cifs/smbencrypt.c b/fs/cifs/smbencrypt.c index 4b25ba92180..90542a39be1 100644 --- a/fs/cifs/smbencrypt.c +++ b/fs/cifs/smbencrypt.c @@ -1,4 +1,4 @@ -/* +/* Unix SMB/Netbios implementation. Version 1.9. SMB parameters and setup @@ -7,17 +7,17 @@ Modified by Jeremy Allison 1995. Copyright (C) Andrew Bartlett <abartlet@samba.org> 2002-2003 Modified by Steve French (sfrench@us.ibm.com) 2002-2003 - + This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. - + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. - + You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. @@ -57,7 +57,7 @@ void SMBNTencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24); /* This implements the X/Open SMB password encryption - It takes a password, a 8 byte "crypt key" and puts 24 bytes of + It takes a password, a 8 byte "crypt key" and puts 24 bytes of encrypted password into p24 */ /* Note that password must be uppercased and null terminated */ void @@ -73,9 +73,9 @@ SMBencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24) E_P16(p14, p21); SMBOWFencrypt(p21, c8, p24); - - memset(p14,0,15); - memset(p21,0,21); + + memset(p14, 0, 15); + memset(p21, 0, 21); } /* Routines for Windows NT MD4 Hash functions. */ @@ -90,14 +90,14 @@ _my_wcslen(__u16 * str) /* * Convert a string into an NT UNICODE string. - * Note that regardless of processor type + * Note that regardless of processor type * this must be in intel (little-endian) * format. */ static int _my_mbstowcs(__u16 * dst, const unsigned char *src, int len) -{ /* not a very good conversion routine - change/fix */ +{ /* BB not a very good conversion routine - change/fix */ int i; __u16 val; @@ -112,7 +112,7 @@ _my_mbstowcs(__u16 * dst, const unsigned char *src, int len) return i; } -/* +/* * Creates the MD4 Hash of the users password in NT UNICODE. */ @@ -123,7 +123,7 @@ E_md4hash(const unsigned char *passwd, unsigned char *p16) __u16 wpwd[129]; /* Password cannot be longer than 128 characters */ - if(passwd) { + if (passwd) { len = strlen((char *) passwd); if (len > 128) { len = 128; @@ -138,7 +138,7 @@ E_md4hash(const unsigned char *passwd, unsigned char *p16) len = _my_wcslen(wpwd) * sizeof (__u16); mdfour(p16, (unsigned char *) wpwd, len); - memset(wpwd,0,129 * 2); + memset(wpwd, 0, 129 * 2); } #if 0 /* currently unused */ @@ -178,17 +178,17 @@ ntv2_owf_gen(const unsigned char owf[16], const char *user_n, const char *domain_n, unsigned char kr_buf[16], const struct nls_table *nls_codepage) { - wchar_t * user_u; - wchar_t * dom_u; + wchar_t *user_u; + wchar_t *dom_u; int user_l, domain_l; struct HMACMD5Context ctx; /* might as well do one alloc to hold both (user_u and dom_u) */ - user_u = kmalloc(2048 * sizeof(wchar_t),GFP_KERNEL); - if(user_u == NULL) + user_u = kmalloc(2048 * sizeof(wchar_t), GFP_KERNEL); + if (user_u == NULL) return; dom_u = user_u + 1024; - + /* push_ucs2(NULL, user_u, user_n, (user_l+1)*2, STR_UNICODE|STR_NOALIGN|STR_TERMINATE|STR_UPPER); push_ucs2(NULL, dom_u, domain_n, (domain_l+1)*2, STR_UNICODE|STR_NOALIGN|STR_TERMINATE|STR_UPPER); */ @@ -206,7 +206,7 @@ ntv2_owf_gen(const unsigned char owf[16], const char *user_n, kfree(user_u); } -#endif +#endif /* Does the des encryption from the NT or LM MD4 hash. */ static void @@ -256,15 +256,15 @@ SMBNTencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24) #if 0 static void SMBOWFencrypt_ntv2(const unsigned char kr[16], - const struct data_blob * srv_chal, - const struct data_blob * cli_chal, unsigned char resp_buf[16]) + const struct data_blob *srv_chal, + const struct data_blob *cli_chal, unsigned char resp_buf[16]) { - struct HMACMD5Context ctx; + struct HMACMD5Context ctx; - hmac_md5_init_limK_to_64(kr, 16, &ctx); - hmac_md5_update(srv_chal->data, srv_chal->length, &ctx); - hmac_md5_update(cli_chal->data, cli_chal->length, &ctx); - hmac_md5_final(resp_buf, &ctx); + hmac_md5_init_limK_to_64(kr, 16, &ctx); + hmac_md5_update(srv_chal->data, srv_chal->length, &ctx); + hmac_md5_update(cli_chal->data, cli_chal->length, &ctx); + hmac_md5_final(resp_buf, &ctx); } static void diff --git a/fs/cifs/smberr.h b/fs/cifs/smberr.h index 212c3c29640..2ef0be28882 100644 --- a/fs/cifs/smberr.h +++ b/fs/cifs/smberr.h @@ -4,8 +4,8 @@ * Copyright (c) International Business Machines Corp., 2002,2004 * Author(s): Steve French (sfrench@us.ibm.com) * - * See Error Codes section of the SNIA CIFS Specification - * for more information + * See Error Codes section of the SNIA CIFS Specification + * for more information * * This library is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published @@ -19,7 +19,7 @@ * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #define SUCCESS 0x00 /* The request was successful. */ @@ -110,7 +110,7 @@ /* Below errors are used internally (do not come over the wire) for passthrough from STATUS codes to POSIX only */ -#define ErrTooManyLinks 0xFFFE +#define ErrTooManyLinks 0xFFFE /* Following error codes may be generated with the ERRSRV error class.*/ diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index 5f468459a1e..746bc9405db 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -1,10 +1,10 @@ /* * fs/cifs/transport.c * - * Copyright (C) International Business Machines Corp., 2002,2005 + * Copyright (C) International Business Machines Corp., 2002,2007 * Author(s): Steve French (sfrench@us.ibm.com) * Jeremy Allison (jra@samba.org) 2006. - * + * * This library is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published * by the Free Software Foundation; either version 2.1 of the License, or @@ -17,7 +17,7 @@ * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/fs.h> @@ -32,7 +32,7 @@ #include "cifsglob.h" #include "cifsproto.h" #include "cifs_debug.h" - + extern mempool_t *cifs_mid_poolp; extern struct kmem_cache *cifs_oplock_cachep; @@ -49,7 +49,7 @@ AllocMidQEntry(const struct smb_hdr *smb_buffer, struct cifsSesInfo *ses) cERROR(1, ("Null TCP session in AllocMidQEntry")); return NULL; } - + temp = (struct mid_q_entry *) mempool_alloc(cifs_mid_poolp, GFP_KERNEL | GFP_NOFS); if (temp == NULL) @@ -86,7 +86,7 @@ DeleteMidQEntry(struct mid_q_entry *midEntry) list_del(&midEntry->qhead); atomic_dec(&midCount); spin_unlock(&GlobalMid_Lock); - if(midEntry->largeBuf) + if (midEntry->largeBuf) cifs_buf_release(midEntry->resp_buf); else cifs_small_buf_release(midEntry->resp_buf); @@ -94,8 +94,8 @@ DeleteMidQEntry(struct mid_q_entry *midEntry) now = jiffies; /* commands taking longer than one second are indications that something is wrong, unless it is quite a slow link or server */ - if((now - midEntry->when_alloc) > HZ) { - if((cifsFYI & CIFS_TIMER) && + if ((now - midEntry->when_alloc) > HZ) { + if ((cifsFYI & CIFS_TIMER) && (midEntry->command != SMB_COM_LOCKING_ANDX)) { printk(KERN_DEBUG " CIFS slow rsp: cmd %d mid %d", midEntry->command, midEntry->mid); @@ -110,10 +110,10 @@ DeleteMidQEntry(struct mid_q_entry *midEntry) } struct oplock_q_entry * -AllocOplockQEntry(struct inode * pinode, __u16 fid, struct cifsTconInfo * tcon) +AllocOplockQEntry(struct inode *pinode, __u16 fid, struct cifsTconInfo *tcon) { struct oplock_q_entry *temp; - if ((pinode== NULL) || (tcon == NULL)) { + if ((pinode == NULL) || (tcon == NULL)) { cERROR(1, ("Null parms passed to AllocOplockQEntry")); return NULL; } @@ -133,9 +133,9 @@ AllocOplockQEntry(struct inode * pinode, __u16 fid, struct cifsTconInfo * tcon) } -void DeleteOplockQEntry(struct oplock_q_entry * oplockEntry) +void DeleteOplockQEntry(struct oplock_q_entry *oplockEntry) { - spin_lock(&GlobalMid_Lock); + spin_lock(&GlobalMid_Lock); /* should we check if list empty first? */ list_del(&oplockEntry->qhead); spin_unlock(&GlobalMid_Lock); @@ -152,7 +152,7 @@ smb_send(struct socket *ssocket, struct smb_hdr *smb_buffer, struct kvec iov; unsigned len = smb_buf_length + 4; - if(ssocket == NULL) + if (ssocket == NULL) return -ENOTSOCK; /* BB eventually add reconnect code here */ iov.iov_base = smb_buffer; iov.iov_len = len; @@ -164,8 +164,8 @@ smb_send(struct socket *ssocket, struct smb_hdr *smb_buffer, smb_msg.msg_flags = MSG_DONTWAIT + MSG_NOSIGNAL; /* BB add more flags?*/ /* smb header is converted in header_assemble. bcc and rest of SMB word - area, and byte area if necessary, is converted to littleendian in - cifssmb.c and RFC1001 len is converted to bigendian in smb_send + area, and byte area if necessary, is converted to littleendian in + cifssmb.c and RFC1001 len is converted to bigendian in smb_send Flags2 is converted in SendReceive */ smb_buffer->smb_buf_length = cpu_to_be32(smb_buffer->smb_buf_length); @@ -177,9 +177,9 @@ smb_send(struct socket *ssocket, struct smb_hdr *smb_buffer, if ((rc == -ENOSPC) || (rc == -EAGAIN)) { i++; /* smaller timeout here than send2 since smaller size */ - /* Although it may not be required, this also is smaller - oplock break time */ - if(i > 12) { + /* Although it may not be required, this also is smaller + oplock break time */ + if (i > 12) { cERROR(1, ("sends on sock %p stuck for 7 seconds", ssocket)); @@ -189,7 +189,7 @@ smb_send(struct socket *ssocket, struct smb_hdr *smb_buffer, msleep(1 << i); continue; } - if (rc < 0) + if (rc < 0) break; else i = 0; /* reset i after each successful send */ @@ -199,7 +199,7 @@ smb_send(struct socket *ssocket, struct smb_hdr *smb_buffer, } if (rc < 0) { - cERROR(1,("Error %d sending data on socket to server", rc)); + cERROR(1, ("Error %d sending data on socket to server", rc)); } else { rc = 0; } @@ -223,8 +223,8 @@ smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec, unsigned int total_len; int first_vec = 0; unsigned int smb_buf_length = smb_buffer->smb_buf_length; - - if(ssocket == NULL) + + if (ssocket == NULL) return -ENOTSOCK; /* BB eventually add reconnect code here */ smb_msg.msg_name = sin; @@ -234,8 +234,8 @@ smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec, smb_msg.msg_flags = MSG_DONTWAIT + MSG_NOSIGNAL; /* BB add more flags?*/ /* smb header is converted in header_assemble. bcc and rest of SMB word - area, and byte area if necessary, is converted to littleendian in - cifssmb.c and RFC1001 len is converted to bigendian in smb_send + area, and byte area if necessary, is converted to littleendian in + cifssmb.c and RFC1001 len is converted to bigendian in smb_send Flags2 is converted in SendReceive */ @@ -252,7 +252,7 @@ smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec, n_vec - first_vec, total_len); if ((rc == -ENOSPC) || (rc == -EAGAIN)) { i++; - if(i >= 14) { + if (i >= 14) { cERROR(1, ("sends on sock %p stuck for 15 seconds", ssocket)); @@ -262,17 +262,17 @@ smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec, msleep(1 << i); continue; } - if (rc < 0) + if (rc < 0) break; if (rc >= total_len) { WARN_ON(rc > total_len); break; } - if(rc == 0) { + if (rc == 0) { /* should never happen, letting socket clear before retrying is our only obvious option here */ - cERROR(1,("tcp sent no data")); + cERROR(1, ("tcp sent no data")); msleep(500); continue; } @@ -295,7 +295,7 @@ smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec, } if (rc < 0) { - cERROR(1,("Error %d sending data on socket to server", rc)); + cERROR(1, ("Error %d sending data on socket to server", rc)); } else rc = 0; @@ -308,13 +308,13 @@ smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec, static int wait_for_free_request(struct cifsSesInfo *ses, const int long_op) { - if(long_op == -1) { + if (long_op == -1) { /* oplock breaks must not be held up */ atomic_inc(&ses->server->inFlight); } else { - spin_lock(&GlobalMid_Lock); - while(1) { - if(atomic_read(&ses->server->inFlight) >= + spin_lock(&GlobalMid_Lock); + while (1) { + if (atomic_read(&ses->server->inFlight) >= cifs_max_pending){ spin_unlock(&GlobalMid_Lock); #ifdef CONFIG_CIFS_STATS2 @@ -328,14 +328,14 @@ static int wait_for_free_request(struct cifsSesInfo *ses, const int long_op) #endif spin_lock(&GlobalMid_Lock); } else { - if(ses->server->tcpStatus == CifsExiting) { + if (ses->server->tcpStatus == CifsExiting) { spin_unlock(&GlobalMid_Lock); return -ENOENT; } - /* can not count locking commands against total since - they are allowed to block on server */ - + /* can not count locking commands against total + as they are allowed to block on server */ + /* update # of requests on the wire to server */ if (long_op < 3) atomic_inc(&ses->server->inFlight); @@ -353,11 +353,11 @@ static int allocate_mid(struct cifsSesInfo *ses, struct smb_hdr *in_buf, if (ses->server->tcpStatus == CifsExiting) { return -ENOENT; } else if (ses->server->tcpStatus == CifsNeedReconnect) { - cFYI(1,("tcp session dead - return to caller to retry")); + cFYI(1, ("tcp session dead - return to caller to retry")); return -EAGAIN; } else if (ses->status != CifsGood) { /* check if SMB session is bad because we are setting it up */ - if((in_buf->Command != SMB_COM_SESSION_SETUP_ANDX) && + if ((in_buf->Command != SMB_COM_SESSION_SETUP_ANDX) && (in_buf->Command != SMB_COM_NEGOTIATE)) { return -EAGAIN; } /* else ok - we are setting up session */ @@ -369,7 +369,7 @@ static int allocate_mid(struct cifsSesInfo *ses, struct smb_hdr *in_buf, return 0; } -static int wait_for_response(struct cifsSesInfo *ses, +static int wait_for_response(struct cifsSesInfo *ses, struct mid_q_entry *midQ, unsigned long timeout, unsigned long time_to_wait) @@ -379,8 +379,8 @@ static int wait_for_response(struct cifsSesInfo *ses, for (;;) { curr_timeout = timeout + jiffies; wait_event(ses->server->response_q, - (!(midQ->midState == MID_REQUEST_SUBMITTED)) || - time_after(jiffies, curr_timeout) || + (!(midQ->midState == MID_REQUEST_SUBMITTED)) || + time_after(jiffies, curr_timeout) || ((ses->server->tcpStatus != CifsGood) && (ses->server->tcpStatus != CifsNew))); @@ -398,16 +398,16 @@ static int wait_for_response(struct cifsSesInfo *ses, spin_unlock(&GlobalMid_Lock); /* Calculate time_to_wait past last receive time. - Although we prefer not to time out if the + Although we prefer not to time out if the server is still responding - we will time - out if the server takes more than 15 (or 45 + out if the server takes more than 15 (or 45 or 180) seconds to respond to this request - and has not responded to any request from + and has not responded to any request from other threads on the client within 10 seconds */ lrt += time_to_wait; if (time_after(jiffies, lrt)) { /* No replies for time_to_wait. */ - cERROR(1,("server not responding")); + cERROR(1, ("server not responding")); return -1; } } else { @@ -417,8 +417,8 @@ static int wait_for_response(struct cifsSesInfo *ses, } int -SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, - struct kvec *iov, int n_vec, int * pRespBufType /* ret */, +SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, + struct kvec *iov, int n_vec, int *pRespBufType /* ret */, const int long_op) { int rc = 0; @@ -426,21 +426,21 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, unsigned long timeout; struct mid_q_entry *midQ; struct smb_hdr *in_buf = iov[0].iov_base; - + *pRespBufType = CIFS_NO_BUFFER; /* no response buf yet */ if ((ses == NULL) || (ses->server == NULL)) { cifs_small_buf_release(in_buf); - cERROR(1,("Null session")); + cERROR(1, ("Null session")); return -EIO; } - if(ses->server->tcpStatus == CifsExiting) { + if (ses->server->tcpStatus == CifsExiting) { cifs_small_buf_release(in_buf); return -ENOENT; } - /* Ensure that we do not send more than 50 overlapping requests + /* Ensure that we do not send more than 50 overlapping requests to the same server. We may make this configurable later or use ses->maxReq */ @@ -450,23 +450,23 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, return rc; } - /* make sure that we sign in the same order that we send on this socket + /* make sure that we sign in the same order that we send on this socket and avoid races inside tcp sendmsg code that could cause corruption of smb data */ - down(&ses->server->tcpSem); + down(&ses->server->tcpSem); rc = allocate_mid(ses, in_buf, &midQ); if (rc) { up(&ses->server->tcpSem); cifs_small_buf_release(in_buf); /* Update # of requests on wire to server */ - atomic_dec(&ses->server->inFlight); + atomic_dec(&ses->server->inFlight); wake_up(&ses->server->request_q); return rc; } - rc = cifs_sign_smb2(iov, n_vec, ses->server, &midQ->sequence_number); + rc = cifs_sign_smb2(iov, n_vec, ses->server, &midQ->sequence_number); midQ->midState = MID_REQUEST_SUBMITTED; #ifdef CONFIG_CIFS_STATS2 @@ -482,7 +482,7 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, up(&ses->server->tcpSem); cifs_small_buf_release(in_buf); - if(rc < 0) + if (rc < 0) goto out; if (long_op == -1) @@ -490,18 +490,18 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, else if (long_op == 2) /* writes past end of file can take loong time */ timeout = 180 * HZ; else if (long_op == 1) - timeout = 45 * HZ; /* should be greater than + timeout = 45 * HZ; /* should be greater than servers oplock break timeout (about 43 seconds) */ else timeout = 15 * HZ; - /* wait for 15 seconds or until woken up due to response arriving or + /* wait for 15 seconds or until woken up due to response arriving or due to last connection to this server being unmounted */ if (signal_pending(current)) { /* if signal pending do not hold up user for full smb timeout but we still give response a chance to complete */ timeout = 2 * HZ; - } + } /* No user interrupts in wait - wreaks havoc with performance */ wait_for_response(ses, midQ, timeout, 10 * HZ); @@ -511,10 +511,10 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, spin_unlock(&GlobalMid_Lock); receive_len = midQ->resp_buf->smb_buf_length; } else { - cERROR(1,("No response to cmd %d mid %d", + cERROR(1, ("No response to cmd %d mid %d", midQ->command, midQ->mid)); - if(midQ->midState == MID_REQUEST_SUBMITTED) { - if(ses->server->tcpStatus == CifsExiting) + if (midQ->midState == MID_REQUEST_SUBMITTED) { + if (ses->server->tcpStatus == CifsExiting) rc = -EHOSTDOWN; else { ses->server->tcpStatus = CifsNeedReconnect; @@ -523,9 +523,9 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, } if (rc != -EHOSTDOWN) { - if(midQ->midState == MID_RETRY_NEEDED) { + if (midQ->midState == MID_RETRY_NEEDED) { rc = -EAGAIN; - cFYI(1,("marking request for retry")); + cFYI(1, ("marking request for retry")); } else { rc = -EIO; } @@ -533,21 +533,21 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, spin_unlock(&GlobalMid_Lock); DeleteMidQEntry(midQ); /* Update # of requests on wire to server */ - atomic_dec(&ses->server->inFlight); + atomic_dec(&ses->server->inFlight); wake_up(&ses->server->request_q); return rc; } - + if (receive_len > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE) { cERROR(1, ("Frame too large received. Length: %d Xid: %d", receive_len, xid)); rc = -EIO; } else { /* rcvd frame is ok */ - if (midQ->resp_buf && + if (midQ->resp_buf && (midQ->midState == MID_RESPONSE_RECEIVED)) { iov[0].iov_base = (char *)midQ->resp_buf; - if(midQ->largeBuf) + if (midQ->largeBuf) *pRespBufType = CIFS_LARGE_BUFFER; else *pRespBufType = CIFS_SMALL_BUFFER; @@ -555,14 +555,14 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, dump_smb(midQ->resp_buf, 80); /* convert the length into a more usable form */ - if((receive_len > 24) && + if ((receive_len > 24) && (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))) { rc = cifs_verify_signature(midQ->resp_buf, - ses->server->mac_signing_key, + &ses->server->mac_signing_key, midQ->sequence_number+1); - if(rc) { - cERROR(1,("Unexpected SMB signature")); + if (rc) { + cERROR(1, ("Unexpected SMB signature")); /* BB FIXME add code to kill session */ } } @@ -576,19 +576,19 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, sizeof (struct smb_hdr) - 4 /* do not count RFC1001 header */ + (2 * midQ->resp_buf->WordCount) + 2 /* bcc */ ) - BCC(midQ->resp_buf) = + BCC(midQ->resp_buf) = le16_to_cpu(BCC_LE(midQ->resp_buf)); midQ->resp_buf = NULL; /* mark it so will not be freed by DeleteMidQEntry */ } else { rc = -EIO; - cFYI(1,("Bad MID state?")); + cFYI(1, ("Bad MID state?")); } } out: DeleteMidQEntry(midQ); - atomic_dec(&ses->server->inFlight); + atomic_dec(&ses->server->inFlight); wake_up(&ses->server->request_q); return rc; @@ -605,18 +605,18 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, struct mid_q_entry *midQ; if (ses == NULL) { - cERROR(1,("Null smb session")); + cERROR(1, ("Null smb session")); return -EIO; } - if(ses->server == NULL) { - cERROR(1,("Null tcp session")); + if (ses->server == NULL) { + cERROR(1, ("Null tcp session")); return -EIO; } - if(ses->server->tcpStatus == CifsExiting) + if (ses->server->tcpStatus == CifsExiting) return -ENOENT; - /* Ensure that we do not send more than 50 overlapping requests + /* Ensure that we do not send more than 50 overlapping requests to the same server. We may make this configurable later or use ses->maxReq */ @@ -624,17 +624,17 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, if (rc) return rc; - /* make sure that we sign in the same order that we send on this socket + /* make sure that we sign in the same order that we send on this socket and avoid races inside tcp sendmsg code that could cause corruption of smb data */ - down(&ses->server->tcpSem); + down(&ses->server->tcpSem); rc = allocate_mid(ses, in_buf, &midQ); if (rc) { up(&ses->server->tcpSem); /* Update # of requests on wire to server */ - atomic_dec(&ses->server->inFlight); + atomic_dec(&ses->server->inFlight); wake_up(&ses->server->request_q); return rc; } @@ -645,7 +645,7 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, DeleteMidQEntry(midQ); up(&ses->server->tcpSem); /* Update # of requests on wire to server */ - atomic_dec(&ses->server->inFlight); + atomic_dec(&ses->server->inFlight); wake_up(&ses->server->request_q); return -EIO; } @@ -664,7 +664,7 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, #endif up(&ses->server->tcpSem); - if(rc < 0) + if (rc < 0) goto out; if (long_op == -1) @@ -672,17 +672,17 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, else if (long_op == 2) /* writes past end of file can take loong time */ timeout = 180 * HZ; else if (long_op == 1) - timeout = 45 * HZ; /* should be greater than + timeout = 45 * HZ; /* should be greater than servers oplock break timeout (about 43 seconds) */ else timeout = 15 * HZ; - /* wait for 15 seconds or until woken up due to response arriving or + /* wait for 15 seconds or until woken up due to response arriving or due to last connection to this server being unmounted */ if (signal_pending(current)) { /* if signal pending do not hold up user for full smb timeout but we still give response a chance to complete */ timeout = 2 * HZ; - } + } /* No user interrupts in wait - wreaks havoc with performance */ wait_for_response(ses, midQ, timeout, 10 * HZ); @@ -692,10 +692,10 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, spin_unlock(&GlobalMid_Lock); receive_len = midQ->resp_buf->smb_buf_length; } else { - cERROR(1,("No response for cmd %d mid %d", + cERROR(1, ("No response for cmd %d mid %d", midQ->command, midQ->mid)); - if(midQ->midState == MID_REQUEST_SUBMITTED) { - if(ses->server->tcpStatus == CifsExiting) + if (midQ->midState == MID_REQUEST_SUBMITTED) { + if (ses->server->tcpStatus == CifsExiting) rc = -EHOSTDOWN; else { ses->server->tcpStatus = CifsNeedReconnect; @@ -704,9 +704,9 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, } if (rc != -EHOSTDOWN) { - if(midQ->midState == MID_RETRY_NEEDED) { + if (midQ->midState == MID_RETRY_NEEDED) { rc = -EAGAIN; - cFYI(1,("marking request for retry")); + cFYI(1, ("marking request for retry")); } else { rc = -EIO; } @@ -714,11 +714,11 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, spin_unlock(&GlobalMid_Lock); DeleteMidQEntry(midQ); /* Update # of requests on wire to server */ - atomic_dec(&ses->server->inFlight); + atomic_dec(&ses->server->inFlight); wake_up(&ses->server->request_q); return rc; } - + if (receive_len > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE) { cERROR(1, ("Frame too large received. Length: %d Xid: %d", receive_len, xid)); @@ -734,14 +734,14 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, dump_smb(out_buf, 92); /* convert the length into a more usable form */ - if((receive_len > 24) && + if ((receive_len > 24) && (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))) { rc = cifs_verify_signature(out_buf, - ses->server->mac_signing_key, + &ses->server->mac_signing_key, midQ->sequence_number+1); - if(rc) { - cERROR(1,("Unexpected SMB signature")); + if (rc) { + cERROR(1, ("Unexpected SMB signature")); /* BB FIXME add code to kill session */ } } @@ -759,13 +759,13 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, BCC(out_buf) = le16_to_cpu(BCC_LE(out_buf)); } else { rc = -EIO; - cERROR(1,("Bad MID state?")); + cERROR(1, ("Bad MID state?")); } } out: DeleteMidQEntry(midQ); - atomic_dec(&ses->server->inFlight); + atomic_dec(&ses->server->inFlight); wake_up(&ses->server->request_q); return rc; @@ -783,7 +783,7 @@ send_nt_cancel(struct cifsTconInfo *tcon, struct smb_hdr *in_buf, header_assemble(in_buf, SMB_COM_NT_CANCEL, tcon, 0); in_buf->Mid = mid; - down(&ses->server->tcpSem); + down(&ses->server->tcpSem); rc = cifs_sign_smb(in_buf, ses->server, &midQ->sequence_number); if (rc) { up(&ses->server->tcpSem); @@ -832,20 +832,20 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon, struct cifsSesInfo *ses; if (tcon == NULL || tcon->ses == NULL) { - cERROR(1,("Null smb session")); + cERROR(1, ("Null smb session")); return -EIO; } ses = tcon->ses; - if(ses->server == NULL) { - cERROR(1,("Null tcp session")); + if (ses->server == NULL) { + cERROR(1, ("Null tcp session")); return -EIO; } - if(ses->server->tcpStatus == CifsExiting) + if (ses->server->tcpStatus == CifsExiting) return -ENOENT; - /* Ensure that we do not send more than 50 overlapping requests + /* Ensure that we do not send more than 50 overlapping requests to the same server. We may make this configurable later or use ses->maxReq */ @@ -853,11 +853,11 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon, if (rc) return rc; - /* make sure that we sign in the same order that we send on this socket + /* make sure that we sign in the same order that we send on this socket and avoid races inside tcp sendmsg code that could cause corruption of smb data */ - down(&ses->server->tcpSem); + down(&ses->server->tcpSem); rc = allocate_mid(ses, in_buf, &midQ); if (rc) { @@ -887,14 +887,14 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon, #endif up(&ses->server->tcpSem); - if(rc < 0) { + if (rc < 0) { DeleteMidQEntry(midQ); return rc; } /* Wait for a reply - allow signals to interrupt. */ rc = wait_event_interruptible(ses->server->response_q, - (!(midQ->midState == MID_REQUEST_SUBMITTED)) || + (!(midQ->midState == MID_REQUEST_SUBMITTED)) || ((ses->server->tcpStatus != CifsGood) && (ses->server->tcpStatus != CifsNew))); @@ -928,7 +928,7 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon, } /* Wait 5 seconds for the response. */ - if (wait_for_response(ses, midQ, 5 * HZ, 5 * HZ)==0) { + if (wait_for_response(ses, midQ, 5 * HZ, 5 * HZ) == 0) { /* We got the response - restart system call. */ rstart = 1; } @@ -939,10 +939,10 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon, spin_unlock(&GlobalMid_Lock); receive_len = midQ->resp_buf->smb_buf_length; } else { - cERROR(1,("No response for cmd %d mid %d", + cERROR(1, ("No response for cmd %d mid %d", midQ->command, midQ->mid)); - if(midQ->midState == MID_REQUEST_SUBMITTED) { - if(ses->server->tcpStatus == CifsExiting) + if (midQ->midState == MID_REQUEST_SUBMITTED) { + if (ses->server->tcpStatus == CifsExiting) rc = -EHOSTDOWN; else { ses->server->tcpStatus = CifsNeedReconnect; @@ -951,9 +951,9 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon, } if (rc != -EHOSTDOWN) { - if(midQ->midState == MID_RETRY_NEEDED) { + if (midQ->midState == MID_RETRY_NEEDED) { rc = -EAGAIN; - cFYI(1,("marking request for retry")); + cFYI(1, ("marking request for retry")); } else { rc = -EIO; } @@ -962,7 +962,7 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon, DeleteMidQEntry(midQ); return rc; } - + if (receive_len > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE) { cERROR(1, ("Frame too large received. Length: %d Xid: %d", receive_len, xid)); @@ -978,14 +978,14 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon, dump_smb(out_buf, 92); /* convert the length into a more usable form */ - if((receive_len > 24) && + if ((receive_len > 24) && (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))) { rc = cifs_verify_signature(out_buf, - ses->server->mac_signing_key, + &ses->server->mac_signing_key, midQ->sequence_number+1); - if(rc) { - cERROR(1,("Unexpected SMB signature")); + if (rc) { + cERROR(1, ("Unexpected SMB signature")); /* BB FIXME add code to kill session */ } } @@ -1003,7 +1003,7 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon, BCC(out_buf) = le16_to_cpu(BCC_LE(out_buf)); } else { rc = -EIO; - cERROR(1,("Bad MID state?")); + cERROR(1, ("Bad MID state?")); } } DeleteMidQEntry(midQ); diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c index 18fcec190f8..f61e433d281 100644 --- a/fs/cifs/xattr.c +++ b/fs/cifs/xattr.c @@ -1,7 +1,7 @@ /* * fs/cifs/xattr.c * - * Copyright (c) International Business Machines Corp., 2003 + * Copyright (c) International Business Machines Corp., 2003, 2007 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify @@ -37,50 +37,52 @@ #define XATTR_TRUSTED_PREFIX_LEN 8 #define XATTR_SECURITY_PREFIX_LEN 9 /* BB need to add server (Samba e.g) support for security and trusted prefix */ - -int cifs_removexattr(struct dentry * direntry, const char * ea_name) + +int cifs_removexattr(struct dentry *direntry, const char *ea_name) { int rc = -EOPNOTSUPP; #ifdef CONFIG_CIFS_XATTR int xid; struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; - struct super_block * sb; - char * full_path; - - if(direntry == NULL) + struct super_block *sb; + char *full_path; + + if (direntry == NULL) return -EIO; - if(direntry->d_inode == NULL) + if (direntry->d_inode == NULL) return -EIO; sb = direntry->d_inode->i_sb; - if(sb == NULL) + if (sb == NULL) return -EIO; xid = GetXid(); - + cifs_sb = CIFS_SB(sb); pTcon = cifs_sb->tcon; - + full_path = build_path_from_dentry(direntry); - if(full_path == NULL) { + if (full_path == NULL) { FreeXid(xid); return -ENOMEM; } - if(ea_name == NULL) { - cFYI(1,("Null xattr names not supported")); - } else if(strncmp(ea_name,CIFS_XATTR_USER_PREFIX,5) - && (strncmp(ea_name,CIFS_XATTR_OS2_PREFIX,4))) { - cFYI(1,("illegal xattr namespace %s (only user namespace supported)",ea_name)); + if (ea_name == NULL) { + cFYI(1, ("Null xattr names not supported")); + } else if (strncmp(ea_name, CIFS_XATTR_USER_PREFIX, 5) + && (strncmp(ea_name, CIFS_XATTR_OS2_PREFIX, 4))) { + cFYI(1, + ("illegal xattr request %s (only user namespace supported)", + ea_name)); /* BB what if no namespace prefix? */ /* Should we just pass them to server, except for system and perhaps security prefixes? */ } else { - if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) goto remove_ea_exit; - ea_name+=5; /* skip past user. prefix */ - rc = CIFSSMBSetEA(xid,pTcon,full_path,ea_name,NULL, + ea_name += 5; /* skip past user. prefix */ + rc = CIFSSMBSetEA(xid, pTcon, full_path, ea_name, NULL, (__u16)0, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); } @@ -91,23 +93,23 @@ remove_ea_exit: return rc; } -int cifs_setxattr(struct dentry * direntry, const char * ea_name, - const void * ea_value, size_t value_size, int flags) +int cifs_setxattr(struct dentry *direntry, const char *ea_name, + const void *ea_value, size_t value_size, int flags) { int rc = -EOPNOTSUPP; #ifdef CONFIG_CIFS_XATTR int xid; struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; - struct super_block * sb; - char * full_path; + struct super_block *sb; + char *full_path; - if(direntry == NULL) + if (direntry == NULL) return -EIO; - if(direntry->d_inode == NULL) + if (direntry->d_inode == NULL) return -EIO; sb = direntry->d_inode->i_sb; - if(sb == NULL) + if (sb == NULL) return -EIO; xid = GetXid(); @@ -115,7 +117,7 @@ int cifs_setxattr(struct dentry * direntry, const char * ea_name, pTcon = cifs_sb->tcon; full_path = build_path_from_dentry(direntry); - if(full_path == NULL) { + if (full_path == NULL) { FreeXid(xid); return -ENOMEM; } @@ -123,67 +125,69 @@ int cifs_setxattr(struct dentry * direntry, const char * ea_name, /* return alt name if available as pseudo attr */ /* if proc/fs/cifs/streamstoxattr is set then - search server for EAs or streams to + search server for EAs or streams to returns as xattrs */ - if(value_size > MAX_EA_VALUE_SIZE) { - cFYI(1,("size of EA value too large")); + if (value_size > MAX_EA_VALUE_SIZE) { + cFYI(1, ("size of EA value too large")); kfree(full_path); FreeXid(xid); return -EOPNOTSUPP; } - if(ea_name == NULL) { - cFYI(1,("Null xattr names not supported")); - } else if(strncmp(ea_name,CIFS_XATTR_USER_PREFIX,5) == 0) { - if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) + if (ea_name == NULL) { + cFYI(1, ("Null xattr names not supported")); + } else if (strncmp(ea_name, CIFS_XATTR_USER_PREFIX, 5) == 0) { + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) goto set_ea_exit; - if(strncmp(ea_name,CIFS_XATTR_DOS_ATTRIB,14) == 0) { - cFYI(1,("attempt to set cifs inode metadata")); + if (strncmp(ea_name, CIFS_XATTR_DOS_ATTRIB, 14) == 0) { + cFYI(1, ("attempt to set cifs inode metadata")); } ea_name += 5; /* skip past user. prefix */ - rc = CIFSSMBSetEA(xid,pTcon,full_path,ea_name,ea_value, + rc = CIFSSMBSetEA(xid, pTcon, full_path, ea_name, ea_value, (__u16)value_size, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - } else if(strncmp(ea_name, CIFS_XATTR_OS2_PREFIX,4) == 0) { - if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) + } else if (strncmp(ea_name, CIFS_XATTR_OS2_PREFIX, 4) == 0) { + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) goto set_ea_exit; ea_name += 4; /* skip past os2. prefix */ - rc = CIFSSMBSetEA(xid,pTcon,full_path,ea_name,ea_value, + rc = CIFSSMBSetEA(xid, pTcon, full_path, ea_name, ea_value, (__u16)value_size, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); } else { - int temp; - temp = strncmp(ea_name,POSIX_ACL_XATTR_ACCESS, + int temp; + temp = strncmp(ea_name, POSIX_ACL_XATTR_ACCESS, strlen(POSIX_ACL_XATTR_ACCESS)); if (temp == 0) { #ifdef CONFIG_CIFS_POSIX - if(sb->s_flags & MS_POSIXACL) - rc = CIFSSMBSetPosixACL(xid, pTcon,full_path, - ea_value, (const int)value_size, - ACL_TYPE_ACCESS,cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + if (sb->s_flags & MS_POSIXACL) + rc = CIFSSMBSetPosixACL(xid, pTcon, full_path, + ea_value, (const int)value_size, + ACL_TYPE_ACCESS, cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - cFYI(1,("set POSIX ACL rc %d",rc)); + cFYI(1, ("set POSIX ACL rc %d", rc)); #else - cFYI(1,("set POSIX ACL not supported")); + cFYI(1, ("set POSIX ACL not supported")); #endif - } else if(strncmp(ea_name,POSIX_ACL_XATTR_DEFAULT,strlen(POSIX_ACL_XATTR_DEFAULT)) == 0) { + } else if (strncmp(ea_name, POSIX_ACL_XATTR_DEFAULT, + strlen(POSIX_ACL_XATTR_DEFAULT)) == 0) { #ifdef CONFIG_CIFS_POSIX - if(sb->s_flags & MS_POSIXACL) - rc = CIFSSMBSetPosixACL(xid, pTcon,full_path, - ea_value, (const int)value_size, + if (sb->s_flags & MS_POSIXACL) + rc = CIFSSMBSetPosixACL(xid, pTcon, full_path, + ea_value, (const int)value_size, ACL_TYPE_DEFAULT, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - cFYI(1,("set POSIX default ACL rc %d",rc)); + cFYI(1, ("set POSIX default ACL rc %d", rc)); #else - cFYI(1,("set default POSIX ACL not supported")); + cFYI(1, ("set default POSIX ACL not supported")); #endif } else { - cFYI(1,("illegal xattr request %s (only user namespace supported)",ea_name)); + cFYI(1, ("illegal xattr request %s (only user namespace" + " supported)", ea_name)); /* BB what if no namespace prefix? */ - /* Should we just pass them to server, except for + /* Should we just pass them to server, except for system and perhaps security prefixes? */ } } @@ -195,23 +199,23 @@ set_ea_exit: return rc; } -ssize_t cifs_getxattr(struct dentry * direntry, const char * ea_name, - void * ea_value, size_t buf_size) +ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name, + void *ea_value, size_t buf_size) { ssize_t rc = -EOPNOTSUPP; #ifdef CONFIG_CIFS_XATTR int xid; struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; - struct super_block * sb; - char * full_path; + struct super_block *sb; + char *full_path; - if(direntry == NULL) + if (direntry == NULL) return -EIO; - if(direntry->d_inode == NULL) + if (direntry->d_inode == NULL) return -EIO; sb = direntry->d_inode->i_sb; - if(sb == NULL) + if (sb == NULL) return -EIO; xid = GetXid(); @@ -220,42 +224,42 @@ ssize_t cifs_getxattr(struct dentry * direntry, const char * ea_name, pTcon = cifs_sb->tcon; full_path = build_path_from_dentry(direntry); - if(full_path == NULL) { + if (full_path == NULL) { FreeXid(xid); return -ENOMEM; } /* return dos attributes as pseudo xattr */ /* return alt name if available as pseudo attr */ - if(ea_name == NULL) { - cFYI(1,("Null xattr names not supported")); - } else if(strncmp(ea_name,CIFS_XATTR_USER_PREFIX,5) == 0) { - if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) + if (ea_name == NULL) { + cFYI(1, ("Null xattr names not supported")); + } else if (strncmp(ea_name, CIFS_XATTR_USER_PREFIX, 5) == 0) { + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) goto get_ea_exit; - if(strncmp(ea_name,CIFS_XATTR_DOS_ATTRIB,14) == 0) { - cFYI(1,("attempt to query cifs inode metadata")); + if (strncmp(ea_name, CIFS_XATTR_DOS_ATTRIB, 14) == 0) { + cFYI(1, ("attempt to query cifs inode metadata")); /* revalidate/getattr then populate from inode */ } /* BB add else when above is implemented */ ea_name += 5; /* skip past user. prefix */ - rc = CIFSSMBQueryEA(xid,pTcon,full_path,ea_name,ea_value, + rc = CIFSSMBQueryEA(xid, pTcon, full_path, ea_name, ea_value, buf_size, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - } else if(strncmp(ea_name, CIFS_XATTR_OS2_PREFIX,4) == 0) { - if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) + } else if (strncmp(ea_name, CIFS_XATTR_OS2_PREFIX, 4) == 0) { + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) goto get_ea_exit; ea_name += 4; /* skip past os2. prefix */ - rc = CIFSSMBQueryEA(xid,pTcon,full_path,ea_name,ea_value, + rc = CIFSSMBQueryEA(xid, pTcon, full_path, ea_name, ea_value, buf_size, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - } else if(strncmp(ea_name,POSIX_ACL_XATTR_ACCESS, + } else if (strncmp(ea_name, POSIX_ACL_XATTR_ACCESS, strlen(POSIX_ACL_XATTR_ACCESS)) == 0) { #ifdef CONFIG_CIFS_POSIX - if(sb->s_flags & MS_POSIXACL) + if (sb->s_flags & MS_POSIXACL) rc = CIFSSMBGetPosixACL(xid, pTcon, full_path, - ea_value, buf_size, ACL_TYPE_ACCESS, + ea_value, buf_size, ACL_TYPE_ACCESS, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); /* else if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) { __u16 fid; @@ -272,39 +276,40 @@ ssize_t cifs_getxattr(struct dentry * direntry, const char * ea_name, CIFSSMBClose(xid, pTcon, fid); } } */ /* BB enable after fixing up return data */ - -#else - cFYI(1,("query POSIX ACL not supported yet")); +#else + cFYI(1, ("query POSIX ACL not supported yet")); #endif /* CONFIG_CIFS_POSIX */ - } else if(strncmp(ea_name,POSIX_ACL_XATTR_DEFAULT, + } else if (strncmp(ea_name, POSIX_ACL_XATTR_DEFAULT, strlen(POSIX_ACL_XATTR_DEFAULT)) == 0) { #ifdef CONFIG_CIFS_POSIX - if(sb->s_flags & MS_POSIXACL) + if (sb->s_flags & MS_POSIXACL) rc = CIFSSMBGetPosixACL(xid, pTcon, full_path, - ea_value, buf_size, ACL_TYPE_DEFAULT, + ea_value, buf_size, ACL_TYPE_DEFAULT, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); -#else - cFYI(1,("query POSIX default ACL not supported yet")); +#else + cFYI(1, ("query POSIX default ACL not supported yet")); #endif - } else if(strncmp(ea_name, - CIFS_XATTR_TRUSTED_PREFIX,XATTR_TRUSTED_PREFIX_LEN) == 0) { - cFYI(1,("Trusted xattr namespace not supported yet")); - } else if(strncmp(ea_name, - CIFS_XATTR_SECURITY_PREFIX,XATTR_SECURITY_PREFIX_LEN) == 0) { - cFYI(1,("Security xattr namespace not supported yet")); + } else if (strncmp(ea_name, + CIFS_XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN) == 0) { + cFYI(1, ("Trusted xattr namespace not supported yet")); + } else if (strncmp(ea_name, + CIFS_XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN) == 0) { + cFYI(1, ("Security xattr namespace not supported yet")); } else { - cFYI(1,("illegal xattr name request %s (only user namespace supported)",ea_name)); + cFYI(1, + ("illegal xattr request %s (only user namespace supported)", + ea_name)); } - /* We could add an additional check for streams ie + /* We could add an additional check for streams ie if proc/fs/cifs/streamstoxattr is set then - search server for EAs or streams to + search server for EAs or streams to returns as xattrs */ - if(rc == -EINVAL) - rc = -EOPNOTSUPP; + if (rc == -EINVAL) + rc = -EOPNOTSUPP; get_ea_exit: kfree(full_path); @@ -313,34 +318,34 @@ get_ea_exit: return rc; } -ssize_t cifs_listxattr(struct dentry * direntry, char * data, size_t buf_size) +ssize_t cifs_listxattr(struct dentry *direntry, char *data, size_t buf_size) { ssize_t rc = -EOPNOTSUPP; #ifdef CONFIG_CIFS_XATTR int xid; struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; - struct super_block * sb; - char * full_path; + struct super_block *sb; + char *full_path; - if(direntry == NULL) + if (direntry == NULL) return -EIO; - if(direntry->d_inode == NULL) + if (direntry->d_inode == NULL) return -EIO; sb = direntry->d_inode->i_sb; - if(sb == NULL) + if (sb == NULL) return -EIO; cifs_sb = CIFS_SB(sb); pTcon = cifs_sb->tcon; - if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) return -EOPNOTSUPP; xid = GetXid(); full_path = build_path_from_dentry(direntry); - if(full_path == NULL) { + if (full_path == NULL) { FreeXid(xid); return -ENOMEM; } @@ -348,11 +353,11 @@ ssize_t cifs_listxattr(struct dentry * direntry, char * data, size_t buf_size) /* return alt name if available as pseudo attr */ /* if proc/fs/cifs/streamstoxattr is set then - search server for EAs or streams to + search server for EAs or streams to returns as xattrs */ - rc = CIFSSMBQAllEAs(xid,pTcon,full_path,data,buf_size, + rc = CIFSSMBQAllEAs(xid, pTcon, full_path, data, buf_size, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); kfree(full_path); diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index 1d533a2ec3a..11be8a325e2 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -345,11 +345,6 @@ void debugfs_remove(struct dentry *dentry) switch (dentry->d_inode->i_mode & S_IFMT) { case S_IFDIR: ret = simple_rmdir(parent->d_inode, dentry); - if (ret) - printk(KERN_ERR - "DebugFS rmdir on %s failed : " - "directory not empty.\n", - dentry->d_name.name); break; case S_IFLNK: kfree(dentry->d_inode->i_private); diff --git a/fs/gfs2/ops_file.c b/fs/gfs2/ops_file.c index 196d83266e3..1a5e8e893d7 100644 --- a/fs/gfs2/ops_file.c +++ b/fs/gfs2/ops_file.c @@ -489,6 +489,29 @@ static int gfs2_fsync(struct file *file, struct dentry *dentry, int datasync) } /** + * gfs2_setlease - acquire/release a file lease + * @file: the file pointer + * @arg: lease type + * @fl: file lock + * + * Returns: errno + */ + +static int gfs2_setlease(struct file *file, long arg, struct file_lock **fl) +{ + struct gfs2_sbd *sdp = GFS2_SB(file->f_mapping->host); + + /* + * We don't currently have a way to enforce a lease across the whole + * cluster; until we do, disable leases (by just returning -EINVAL), + * unless the administrator has requested purely local locking. + */ + if (!sdp->sd_args.ar_localflocks) + return -EINVAL; + return setlease(file, arg, fl); +} + +/** * gfs2_lock - acquire/release a posix lock on a file * @file: the file pointer * @cmd: either modify or retrieve lock state, possibly wait @@ -638,6 +661,7 @@ const struct file_operations gfs2_file_fops = { .flock = gfs2_flock, .splice_read = generic_file_splice_read, .splice_write = generic_file_splice_write, + .setlease = gfs2_setlease, }; const struct file_operations gfs2_dir_fops = { diff --git a/fs/locks.c b/fs/locks.c index 431a8b871fc..4f2d749ac62 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -458,22 +458,20 @@ static int lease_init(struct file *filp, int type, struct file_lock *fl) } /* Allocate a file_lock initialised to this type of lease */ -static int lease_alloc(struct file *filp, int type, struct file_lock **flp) +static struct file_lock *lease_alloc(struct file *filp, int type) { struct file_lock *fl = locks_alloc_lock(); int error = -ENOMEM; if (fl == NULL) - goto out; + return ERR_PTR(error); error = lease_init(filp, type, fl); if (error) { locks_free_lock(fl); - fl = NULL; + return ERR_PTR(error); } -out: - *flp = fl; - return error; + return fl; } /* Check if two locks overlap each other. @@ -661,7 +659,7 @@ static int locks_block_on_timeout(struct file_lock *blocker, struct file_lock *w return result; } -int +void posix_test_lock(struct file *filp, struct file_lock *fl) { struct file_lock *cfl; @@ -673,14 +671,12 @@ posix_test_lock(struct file *filp, struct file_lock *fl) if (posix_locks_conflict(cfl, fl)) break; } - if (cfl) { + if (cfl) __locks_copy_lock(fl, cfl); - unlock_kernel(); - return 1; - } else + else fl->fl_type = F_UNLCK; unlock_kernel(); - return 0; + return; } EXPORT_SYMBOL(posix_test_lock); @@ -1169,9 +1165,9 @@ static void time_out_leases(struct inode *inode) * @inode: the inode of the file to return * @mode: the open mode (read or write) * - * break_lease (inlined for speed) has checked there already - * is a lease on this file. Leases are broken on a call to open() - * or truncate(). This function can sleep unless you + * break_lease (inlined for speed) has checked there already is at least + * some kind of lock (maybe a lease) on this file. Leases are broken on + * a call to open() or truncate(). This function can sleep unless you * specified %O_NONBLOCK to your open(). */ int __break_lease(struct inode *inode, unsigned int mode) @@ -1179,12 +1175,10 @@ int __break_lease(struct inode *inode, unsigned int mode) int error = 0, future; struct file_lock *new_fl, *flock; struct file_lock *fl; - int alloc_err; unsigned long break_time; int i_have_this_lease = 0; - alloc_err = lease_alloc(NULL, mode & FMODE_WRITE ? F_WRLCK : F_RDLCK, - &new_fl); + new_fl = lease_alloc(NULL, mode & FMODE_WRITE ? F_WRLCK : F_RDLCK); lock_kernel(); @@ -1212,8 +1206,9 @@ int __break_lease(struct inode *inode, unsigned int mode) goto out; } - if (alloc_err && !i_have_this_lease && ((mode & O_NONBLOCK) == 0)) { - error = alloc_err; + if (IS_ERR(new_fl) && !i_have_this_lease + && ((mode & O_NONBLOCK) == 0)) { + error = PTR_ERR(new_fl); goto out; } @@ -1260,7 +1255,7 @@ restart: out: unlock_kernel(); - if (!alloc_err) + if (!IS_ERR(new_fl)) locks_free_lock(new_fl); return error; } @@ -1329,7 +1324,7 @@ int fcntl_getlease(struct file *filp) } /** - * __setlease - sets a lease on an open file + * setlease - sets a lease on an open file * @filp: file pointer * @arg: type of lease to obtain * @flp: input - file_lock to use, output - file_lock inserted @@ -1339,18 +1334,24 @@ int fcntl_getlease(struct file *filp) * * Called with kernel lock held. */ -static int __setlease(struct file *filp, long arg, struct file_lock **flp) +int setlease(struct file *filp, long arg, struct file_lock **flp) { struct file_lock *fl, **before, **my_before = NULL, *lease; struct dentry *dentry = filp->f_path.dentry; struct inode *inode = dentry->d_inode; int error, rdlease_count = 0, wrlease_count = 0; + if ((current->fsuid != inode->i_uid) && !capable(CAP_LEASE)) + return -EACCES; + if (!S_ISREG(inode->i_mode)) + return -EINVAL; + error = security_file_lock(filp, arg); + if (error) + return error; + time_out_leases(inode); - error = -EINVAL; - if (!flp || !(*flp) || !(*flp)->fl_lmops || !(*flp)->fl_lmops->fl_break) - goto out; + BUG_ON(!(*flp)->fl_lmops->fl_break); lease = *flp; @@ -1418,39 +1419,49 @@ static int __setlease(struct file *filp, long arg, struct file_lock **flp) out: return error; } +EXPORT_SYMBOL(setlease); /** - * setlease - sets a lease on an open file + * vfs_setlease - sets a lease on an open file * @filp: file pointer * @arg: type of lease to obtain * @lease: file_lock to use * * Call this to establish a lease on the file. - * The fl_lmops fl_break function is required by break_lease + * The (*lease)->fl_lmops->fl_break operation must be set; if not, + * break_lease will oops! + * + * This will call the filesystem's setlease file method, if + * defined. Note that there is no getlease method; instead, the + * filesystem setlease method should call back to setlease() to + * add a lease to the inode's lease list, where fcntl_getlease() can + * find it. Since fcntl_getlease() only reports whether the current + * task holds a lease, a cluster filesystem need only do this for + * leases held by processes on this node. + * + * There is also no break_lease method; filesystems that + * handle their own leases shoud break leases themselves from the + * filesystem's open, create, and (on truncate) setattr methods. + * + * Warning: the only current setlease methods exist only to disable + * leases in certain cases. More vfs changes may be required to + * allow a full filesystem lease implementation. */ -int setlease(struct file *filp, long arg, struct file_lock **lease) +int vfs_setlease(struct file *filp, long arg, struct file_lock **lease) { - struct dentry *dentry = filp->f_path.dentry; - struct inode *inode = dentry->d_inode; int error; - if ((current->fsuid != inode->i_uid) && !capable(CAP_LEASE)) - return -EACCES; - if (!S_ISREG(inode->i_mode)) - return -EINVAL; - error = security_file_lock(filp, arg); - if (error) - return error; - lock_kernel(); - error = __setlease(filp, arg, lease); + if (filp->f_op && filp->f_op->setlease) + error = filp->f_op->setlease(filp, arg, lease); + else + error = setlease(filp, arg, lease); unlock_kernel(); return error; } - -EXPORT_SYMBOL(setlease); +EXPORT_SYMBOL_GPL(vfs_setlease); /** * fcntl_setlease - sets a lease on an open file @@ -1469,14 +1480,6 @@ int fcntl_setlease(unsigned int fd, struct file *filp, long arg) struct inode *inode = dentry->d_inode; int error; - if ((current->fsuid != inode->i_uid) && !capable(CAP_LEASE)) - return -EACCES; - if (!S_ISREG(inode->i_mode)) - return -EINVAL; - error = security_file_lock(filp, arg); - if (error) - return error; - locks_init_lock(&fl); error = lease_init(filp, arg, &fl); if (error) @@ -1484,15 +1487,15 @@ int fcntl_setlease(unsigned int fd, struct file *filp, long arg) lock_kernel(); - error = __setlease(filp, arg, &flp); + error = vfs_setlease(filp, arg, &flp); if (error || arg == F_UNLCK) goto out_unlock; error = fasync_helper(fd, filp, 1, &flp->fl_fasync); if (error < 0) { - /* remove lease just inserted by __setlease */ + /* remove lease just inserted by setlease */ flp->fl_type = F_UNLCK | F_INPROGRESS; - flp->fl_break_time = jiffies- 10; + flp->fl_break_time = jiffies - 10; time_out_leases(inode); goto out_unlock; } @@ -1597,8 +1600,7 @@ asmlinkage long sys_flock(unsigned int fd, unsigned int cmd) /** * vfs_test_lock - test file byte range lock * @filp: The file to test lock for - * @fl: The lock to test - * @conf: Place to return a copy of the conflicting lock, if found + * @fl: The lock to test; also used to hold result * * Returns -ERRNO on failure. Indicates presence of conflicting lock by * setting conf->fl_type to something other than F_UNLCK. diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 8689b736fdd..c87dc713b5d 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -53,6 +53,7 @@ static int nfs_fsync(struct file *, struct dentry *dentry, int datasync); static int nfs_check_flags(int flags); static int nfs_lock(struct file *filp, int cmd, struct file_lock *fl); static int nfs_flock(struct file *filp, int cmd, struct file_lock *fl); +static int nfs_setlease(struct file *file, long arg, struct file_lock **fl); const struct file_operations nfs_file_operations = { .llseek = nfs_file_llseek, @@ -69,6 +70,7 @@ const struct file_operations nfs_file_operations = { .flock = nfs_flock, .splice_read = nfs_file_splice_read, .check_flags = nfs_check_flags, + .setlease = nfs_setlease, }; const struct inode_operations nfs_file_inode_operations = { @@ -400,7 +402,9 @@ static int do_getlk(struct file *filp, int cmd, struct file_lock *fl) lock_kernel(); /* Try local locking first */ - if (posix_test_lock(filp, fl)) { + posix_test_lock(filp, fl); + if (fl->fl_type != F_UNLCK) { + /* found a conflict */ goto out; } @@ -558,3 +562,13 @@ static int nfs_flock(struct file *filp, int cmd, struct file_lock *fl) return do_unlk(filp, cmd, fl); return do_setlk(filp, cmd, fl); } + +static int nfs_setlease(struct file *file, long arg, struct file_lock **fl) +{ + /* + * There is no protocol support for leases, so we have no way + * to implement them correctly in the face of opens by other + * clients. + */ + return -EINVAL; +} diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index e4a4c87ec8c..6284807bd37 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -256,7 +256,7 @@ nfs4_close_delegation(struct nfs4_delegation *dp) /* The following nfsd_close may not actually close the file, * but we want to remove the lease in any case. */ if (dp->dl_flock) - setlease(filp, F_UNLCK, &dp->dl_flock); + vfs_setlease(filp, F_UNLCK, &dp->dl_flock); nfsd_close(filp); } @@ -1402,7 +1402,7 @@ void nfsd_release_deleg_cb(struct file_lock *fl) /* * Set the delegation file_lock back pointer. * - * Called from __setlease() with lock_kernel() held. + * Called from setlease() with lock_kernel() held. */ static void nfsd_copy_lock_deleg_cb(struct file_lock *new, struct file_lock *fl) @@ -1416,7 +1416,7 @@ void nfsd_copy_lock_deleg_cb(struct file_lock *new, struct file_lock *fl) } /* - * Called from __setlease() with lock_kernel() held + * Called from setlease() with lock_kernel() held */ static int nfsd_same_client_deleg_cb(struct file_lock *onlist, struct file_lock *try) @@ -1716,10 +1716,10 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_sta fl.fl_file = stp->st_vfs_file; fl.fl_pid = current->tgid; - /* setlease checks to see if delegation should be handed out. + /* vfs_setlease checks to see if delegation should be handed out. * the lock_manager callbacks fl_mylease and fl_change are used */ - if ((status = setlease(stp->st_vfs_file, + if ((status = vfs_setlease(stp->st_vfs_file, flag == NFS4_OPEN_DELEGATE_READ? F_RDLCK: F_WRLCK, &flp))) { dprintk("NFSD: setlease failed [%d], no delegation\n", status); unhash_delegation(dp); diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c index aee966c44aa..048e6054c2f 100644 --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c @@ -361,20 +361,20 @@ static struct dentry_operations sysfs_dentry_ops = { struct sysfs_dirent *sysfs_new_dirent(const char *name, umode_t mode, int type) { char *dup_name = NULL; - struct sysfs_dirent *sd = NULL; + struct sysfs_dirent *sd; if (type & SYSFS_COPY_NAME) { name = dup_name = kstrdup(name, GFP_KERNEL); if (!name) - goto err_out; + return NULL; } sd = kmem_cache_zalloc(sysfs_dir_cachep, GFP_KERNEL); if (!sd) - goto err_out; + goto err_out1; if (sysfs_alloc_ino(&sd->s_ino)) - goto err_out; + goto err_out2; atomic_set(&sd->s_count, 1); atomic_set(&sd->s_active, 0); @@ -386,9 +386,10 @@ struct sysfs_dirent *sysfs_new_dirent(const char *name, umode_t mode, int type) return sd; - err_out: - kfree(dup_name); + err_out2: kmem_cache_free(sysfs_dir_cachep, sd); + err_out1: + kfree(dup_name); return NULL; } @@ -698,17 +699,19 @@ static int create_dir(struct kobject *kobj, struct sysfs_dirent *parent_sd, /* link in */ sysfs_addrm_start(&acxt, parent_sd); + if (!sysfs_find_dirent(parent_sd, name)) { sysfs_add_one(&acxt, sd); sysfs_link_sibling(sd); } - if (sysfs_addrm_finish(&acxt)) { - *p_sd = sd; - return 0; + + if (!sysfs_addrm_finish(&acxt)) { + sysfs_put(sd); + return -EEXIST; } - sysfs_put(sd); - return -EEXIST; + *p_sd = sd; + return 0; } int sysfs_create_subdir(struct kobject *kobj, const char *name, diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c index cc497994b2a..3e1cc062a74 100644 --- a/fs/sysfs/file.c +++ b/fs/sysfs/file.c @@ -410,11 +410,12 @@ int sysfs_add_file(struct sysfs_dirent *dir_sd, const struct attribute *attr, sysfs_link_sibling(sd); } - if (sysfs_addrm_finish(&acxt)) - return 0; + if (!sysfs_addrm_finish(&acxt)) { + sysfs_put(sd); + return -EEXIST; + } - sysfs_put(sd); - return -EEXIST; + return 0; } diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c index 3756e152285..10d1b52899f 100644 --- a/fs/sysfs/inode.c +++ b/fs/sysfs/inode.c @@ -133,7 +133,7 @@ static inline void set_inode_attr(struct inode * inode, struct iattr * iattr) */ static struct lock_class_key sysfs_inode_imutex_key; -void sysfs_init_inode(struct sysfs_dirent *sd, struct inode *inode) +static void sysfs_init_inode(struct sysfs_dirent *sd, struct inode *inode) { inode->i_blocks = 0; inode->i_mapping->a_ops = &sysfs_aops; diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c index 402cc356203..60714d075c2 100644 --- a/fs/sysfs/mount.c +++ b/fs/sysfs/mount.c @@ -43,19 +43,19 @@ static int sysfs_fill_super(struct super_block *sb, void *data, int silent) sb->s_time_gran = 1; sysfs_sb = sb; - inode = new_inode(sysfs_sb); + /* get root inode, initialize and unlock it */ + inode = sysfs_get_inode(&sysfs_root); if (!inode) { pr_debug("sysfs: could not get root inode\n"); return -ENOMEM; } - sysfs_init_inode(&sysfs_root, inode); - inode->i_op = &sysfs_dir_inode_operations; inode->i_fop = &sysfs_dir_operations; - /* directory inodes start off with i_nlink == 2 (for "." entry) */ - inc_nlink(inode); + inc_nlink(inode); /* directory, account for "." */ + unlock_new_inode(inode); + /* instantiate and link root dentry */ root = d_alloc_root(inode); if (!root) { pr_debug("%s: could not get root dentry!\n",__FUNCTION__); diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c index 2f86e042229..4ce687f0b5d 100644 --- a/fs/sysfs/symlink.c +++ b/fs/sysfs/symlink.c @@ -86,7 +86,9 @@ int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char sd = sysfs_new_dirent(name, S_IFLNK|S_IRWXUGO, SYSFS_KOBJ_LINK); if (!sd) goto out_put; + sd->s_elem.symlink.target_sd = target_sd; + target_sd = NULL; /* reference is now owned by the symlink */ sysfs_addrm_start(&acxt, parent_sd); @@ -95,11 +97,13 @@ int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char sysfs_link_sibling(sd); } - if (sysfs_addrm_finish(&acxt)) - return 0; + if (!sysfs_addrm_finish(&acxt)) { + error = -EEXIST; + goto out_put; + } + + return 0; - error = -EEXIST; - /* fall through */ out_put: sysfs_put(target_sd); sysfs_put(sd); diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h index 6a37f2386a8..6b8c8d76d30 100644 --- a/fs/sysfs/sysfs.h +++ b/fs/sysfs/sysfs.h @@ -71,7 +71,6 @@ extern void sysfs_remove_one(struct sysfs_addrm_cxt *acxt, extern int sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt); extern void sysfs_delete_inode(struct inode *inode); -extern void sysfs_init_inode(struct sysfs_dirent *sd, struct inode *inode); extern struct inode * sysfs_get_inode(struct sysfs_dirent *sd); extern void sysfs_instantiate(struct dentry *dentry, struct inode *inode); diff --git a/include/linux/device.h b/include/linux/device.h index be2debed70d..d9f0a57f5a2 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -572,6 +572,16 @@ dev_dbg(struct device * dev, const char * fmt, ...) } #endif +#ifdef VERBOSE_DEBUG +#define dev_vdbg dev_dbg +#else +static inline int __attribute__ ((format (printf, 2, 3))) +dev_vdbg(struct device * dev, const char * fmt, ...) +{ + return 0; +} +#endif + #define dev_err(dev, format, arg...) \ dev_printk(KERN_ERR , dev , format , ## arg) #define dev_info(dev, format, arg...) \ diff --git a/include/linux/fs.h b/include/linux/fs.h index 0b806c5e32e..9562a59b370 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -862,7 +862,7 @@ extern void locks_init_lock(struct file_lock *); extern void locks_copy_lock(struct file_lock *, struct file_lock *); extern void locks_remove_posix(struct file *, fl_owner_t); extern void locks_remove_flock(struct file *); -extern int posix_test_lock(struct file *, struct file_lock *); +extern void posix_test_lock(struct file *, struct file_lock *); extern int posix_lock_file(struct file *, struct file_lock *, struct file_lock *); extern int posix_lock_file_wait(struct file *, struct file_lock *); extern int posix_unblock_lock(struct file *, struct file_lock *); @@ -873,6 +873,7 @@ extern int flock_lock_file_wait(struct file *filp, struct file_lock *fl); extern int __break_lease(struct inode *inode, unsigned int flags); extern void lease_get_mtime(struct inode *, struct timespec *time); extern int setlease(struct file *, long, struct file_lock **); +extern int vfs_setlease(struct file *, long, struct file_lock **); extern int lease_modify(struct file_lock **, int); extern int lock_may_read(struct inode *, loff_t start, unsigned long count); extern int lock_may_write(struct inode *, loff_t start, unsigned long count); @@ -1122,6 +1123,7 @@ struct file_operations { int (*flock) (struct file *, int, struct file_lock *); ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int); ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int); + int (*setlease)(struct file *, long, struct file_lock **); }; struct inode_operations { diff --git a/include/linux/kobject.h b/include/linux/kobject.h index 06cbf41d32d..aa2fe22b1ba 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -36,15 +36,24 @@ extern char uevent_helper[]; /* counter to tag the uevent, read only except for the kobject core */ extern u64 uevent_seqnum; -/* the actions here must match the proper string in lib/kobject_uevent.c */ -typedef int __bitwise kobject_action_t; +/* + * The actions here must match the index to the string array + * in lib/kobject_uevent.c + * + * Do not add new actions here without checking with the driver-core + * maintainers. Action strings are not meant to express subsystem + * or device specific properties. In most cases you want to send a + * kobject_uevent_env(kobj, KOBJ_CHANGE, env) with additional event + * specific variables added to the event environment. + */ enum kobject_action { - KOBJ_ADD = (__force kobject_action_t) 0x01, /* exclusive to core */ - KOBJ_REMOVE = (__force kobject_action_t) 0x02, /* exclusive to core */ - KOBJ_CHANGE = (__force kobject_action_t) 0x03, /* device state change */ - KOBJ_OFFLINE = (__force kobject_action_t) 0x04, /* device offline */ - KOBJ_ONLINE = (__force kobject_action_t) 0x05, /* device online */ - KOBJ_MOVE = (__force kobject_action_t) 0x06, /* device move */ + KOBJ_ADD, + KOBJ_REMOVE, + KOBJ_CHANGE, + KOBJ_MOVE, + KOBJ_ONLINE, + KOBJ_OFFLINE, + KOBJ_MAX }; struct kobject { diff --git a/include/linux/pm.h b/include/linux/pm.h index 273781c82e4..2735b7cadd2 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -284,8 +284,6 @@ extern int device_prepare_suspend(pm_message_t state); #define device_may_wakeup(dev) \ (device_can_wakeup(dev) && (dev)->power.should_wakeup) -extern int dpm_runtime_suspend(struct device *, pm_message_t); -extern void dpm_runtime_resume(struct device *); extern void __suspend_report_result(const char *function, void *fn, int ret); #define suspend_report_result(fn, ret) \ @@ -317,15 +315,6 @@ static inline int device_suspend(pm_message_t state) #define device_set_wakeup_enable(dev,val) do{}while(0) #define device_may_wakeup(dev) (0) -static inline int dpm_runtime_suspend(struct device * dev, pm_message_t state) -{ - return 0; -} - -static inline void dpm_runtime_resume(struct device * dev) -{ -} - #define suspend_report_result(fn, ret) do { } while (0) static inline int call_platform_enable_wakeup(struct device *dev, int is_on) diff --git a/include/linux/uio_driver.h b/include/linux/uio_driver.h new file mode 100644 index 00000000000..44c28e94df5 --- /dev/null +++ b/include/linux/uio_driver.h @@ -0,0 +1,91 @@ +/* + * include/linux/uio_driver.h + * + * Copyright(C) 2005, Benedikt Spranger <b.spranger@linutronix.de> + * Copyright(C) 2005, Thomas Gleixner <tglx@linutronix.de> + * Copyright(C) 2006, Hans J. Koch <hjk@linutronix.de> + * Copyright(C) 2006, Greg Kroah-Hartman <greg@kroah.com> + * + * Userspace IO driver. + * + * Licensed under the GPLv2 only. + */ + +#ifndef _UIO_DRIVER_H_ +#define _UIO_DRIVER_H_ + +#include <linux/module.h> +#include <linux/fs.h> +#include <linux/interrupt.h> + +/** + * struct uio_mem - description of a UIO memory region + * @kobj: kobject for this mapping + * @addr: address of the device's memory + * @size: size of IO + * @memtype: type of memory addr points to + * @internal_addr: ioremap-ped version of addr, for driver internal use + */ +struct uio_mem { + struct kobject kobj; + unsigned long addr; + unsigned long size; + int memtype; + void __iomem *internal_addr; +}; + +#define MAX_UIO_MAPS 5 + +struct uio_device; + +/** + * struct uio_info - UIO device capabilities + * @uio_dev: the UIO device this info belongs to + * @name: device name + * @version: device driver version + * @mem: list of mappable memory regions, size==0 for end of list + * @irq: interrupt number or UIO_IRQ_CUSTOM + * @irq_flags: flags for request_irq() + * @priv: optional private data + * @handler: the device's irq handler + * @mmap: mmap operation for this uio device + * @open: open operation for this uio device + * @release: release operation for this uio device + */ +struct uio_info { + struct uio_device *uio_dev; + char *name; + char *version; + struct uio_mem mem[MAX_UIO_MAPS]; + long irq; + unsigned long irq_flags; + void *priv; + irqreturn_t (*handler)(int irq, struct uio_info *dev_info); + int (*mmap)(struct uio_info *info, struct vm_area_struct *vma); + int (*open)(struct uio_info *info, struct inode *inode); + int (*release)(struct uio_info *info, struct inode *inode); +}; + +extern int __must_check + __uio_register_device(struct module *owner, + struct device *parent, + struct uio_info *info); +static inline int __must_check + uio_register_device(struct device *parent, struct uio_info *info) +{ + return __uio_register_device(THIS_MODULE, parent, info); +} +extern void uio_unregister_device(struct uio_info *info); +extern void uio_event_notify(struct uio_info *info); + +/* defines for uio_device->irq */ +#define UIO_IRQ_CUSTOM -1 +#define UIO_IRQ_NONE -2 + +/* defines for uio_device->memtype */ +#define UIO_MEM_NONE 0 +#define UIO_MEM_PHYS 1 +#define UIO_MEM_LOGICAL 2 +#define UIO_MEM_VIRTUAL 3 + +#endif /* _LINUX_UIO_DRIVER_H_ */ diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig index 495b7d4dd33..73328476761 100644 --- a/kernel/power/Kconfig +++ b/kernel/power/Kconfig @@ -65,18 +65,6 @@ config PM_TRACE CAUTION: this option will cause your machine's real-time clock to be set to an invalid time after a resume. -config PM_SYSFS_DEPRECATED - bool "Driver model /sys/devices/.../power/state files (DEPRECATED)" - depends on PM && SYSFS - default n - help - The driver model started out with a sysfs file intended to provide - a userspace hook for device power management. This feature has never - worked very well, except for limited testing purposes, and so it will - be removed. It's not clear that a generic mechanism could really - handle the wide variability of device power states; any replacements - are likely to be bus or driver specific. - config SOFTWARE_SUSPEND bool "Software Suspend (Hibernation)" depends on PM && SWAP && (((X86 || PPC64_SWSUSP) && (!SMP || SUSPEND_SMP)) || ((FRV || PPC32) && !SMP)) diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c index bd5ecbbafab..6a80c784a8f 100644 --- a/lib/kobject_uevent.c +++ b/lib/kobject_uevent.c @@ -33,25 +33,15 @@ static DEFINE_SPINLOCK(sequence_lock); static struct sock *uevent_sock; #endif -static char *action_to_string(enum kobject_action action) -{ - switch (action) { - case KOBJ_ADD: - return "add"; - case KOBJ_REMOVE: - return "remove"; - case KOBJ_CHANGE: - return "change"; - case KOBJ_OFFLINE: - return "offline"; - case KOBJ_ONLINE: - return "online"; - case KOBJ_MOVE: - return "move"; - default: - return NULL; - } -} +/* the strings here must match the enum in include/linux/kobject.h */ +const char *kobject_actions[] = { + "add", + "remove", + "change", + "move", + "online", + "offline", +}; /** * kobject_uevent_env - send an uevent with environmental data @@ -83,7 +73,7 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action, pr_debug("%s\n", __FUNCTION__); - action_string = action_to_string(action); + action_string = kobject_actions[action]; if (!action_string) { pr_debug("kobject attempted to send uevent without action_string!\n"); return -EINVAL; |