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2007-02-08[NET]: change layout of ehash tableEric Dumazet
ehash table layout is currently this one : First half of this table is used by sockets not in TIME_WAIT state Second half of it is used by sockets in TIME_WAIT state. This is non optimal because of for a given hash or socket, the two chain heads are located in separate cache lines. Moreover the locks of the second half are never used. If instead of this halving, we use two list heads in inet_ehash_bucket instead of only one, we probably can avoid one cache miss, and reduce ram usage, particularly if sizeof(rwlock_t) is big (various CONFIG_DEBUG_SPINLOCK, CONFIG_DEBUG_LOCK_ALLOC settings). So we still halves the table but we keep together related chains to speedup lookups and socket state change. In this patch I did not try to align struct inet_ehash_bucket, but a future patch could try to make this structure have a convenient size (a power of two or a multiple of L1_CACHE_SIZE). I guess rwlock will just vanish as soon as RCU is plugged into ehash :) , so maybe we dont need to scratch our heads to align the bucket... Note : In case struct inet_ehash_bucket is not a power of two, we could probably change alloc_large_system_hash() (in case it use __get_free_pages()) to free the unused space. It currently allocates a big zone, but the last quarter of it could be freed. Again, this should be a temporary 'problem'. Patch tested on ipv4 tcp only, but should be OK for IPV6 and DCCP. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-08[S390]: Add AF_IUCV socket supportJennifer Hunt
From: Jennifer Hunt <jenhunt@us.ibm.com> This patch adds AF_IUCV socket support. Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-08[S390]: Rewrite of the IUCV base code, part 2Martin Schwidefsky
Add rewritten IUCV base code to net/iucv. Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-08[X.25]: Adds /proc/sys/net/x25/x25_forward to control forwarding.Andrew Hendry
echo "1" > /proc/sys/net/x25/x25_forward To turn on x25_forwarding, defaults to off Requires the previous patch. Signed-off-by: Andrew Hendry <andrew.hendry@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-08[X.25]: Add call forwardingAndrew Hendry
Adds call forwarding to X.25, allowing it to operate like an X.25 router. Useful if one needs to manipulate X.25 traffic with tools like tc. This is an update/cleanup based off a patch submitted by Daniel Ferenci a few years ago. Thanks Alan for the feedback. Added the null check to the clones. Moved the skb_clone's into the forwarding functions. Worked ok with Cisco XoT, linux X.25 back to back, and some old NTUs/PADs. Signed-off-by: Andrew Hendry <andrew.hendry@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-08[XFRM]: Extension for dynamic update of endpoint address(es)Shinta Sugimoto
Extend the XFRM framework so that endpoint address(es) in the XFRM databases could be dynamically updated according to a request (MIGRATE message) from user application. Target XFRM policy is first identified by the selector in the MIGRATE message. Next, the endpoint addresses of the matching templates and XFRM states are updated according to the MIGRATE message. Signed-off-by: Shinta Sugimoto <shinta.sugimoto@ericsson.com> Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-08[NETFILTER]: NAT: optional source port randomization supportEric Leblond
This patch adds support to NAT to randomize source ports. Signed-off-by: Eric Leblond <eric@inl.fr> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-08[NETFILTER]: Add SANE connection tracking helperMichal Schmidt
This is nf_conntrack_sane, a netfilter connection tracking helper module for the SANE protocol used by the 'saned' daemon to make scanners available via network. The SANE protocol uses separate control & data connections, similar to passive FTP. The helper module is needed to recognize the data connection as RELATED to the control one. Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-08[IPSEC]: exporting xfrm_state_afinfoMiika Komu
This patch exports xfrm_state_afinfo. Signed-off-by: Miika Komu <miika@iki.fi> Signed-off-by: Diego Beltrami <Diego.Beltrami@hiit.fi> Signed-off-by: Kazunori Miyazawa <miyazawa@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-08[IPV4/IPV6]: Always wait for IPSEC SA resolution in socket contexts.David S. Miller
Do this even for non-blocking sockets. This avoids the silly -EAGAIN that applications can see now, even for non-blocking sockets in some cases (f.e. connect()). With help from Venkat Tekkirala. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-08[TCP]: remove tcp header from tcp_v4_check (take #2)Frederik Deweerdt
The tcphdr struct passed to tcp_v4_check is not used, the following patch removes it from the parameter list. This adds the netfilter modifications missing in the patch I sent for rc3-mm1. Signed-off-by: Frederik Deweerdt <frederik.deweerdt@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-26[TCP]: Restore SKB socket owner setting in tcp_transmit_skb().David S. Miller
Revert 931731123a103cfb3f70ac4b7abfc71d94ba1f03 We can't elide the skb_set_owner_w() here because things like certain netfilter targets (such as owner MATCH) need a socket to be set on the SKB for correct operation. Thanks to Jan Engelhardt and other netfilter list members for pointing this out. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-23[SCTP]: Correctly handle unexpected INIT-ACK chunk.Vlad Yasevich
Consider the chunk as Out-of-the-Blue if we don't have an endpoint. Otherwise discard it as before. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-23[NETFILTER]: fix xt_state compile failureMikael Pettersson
In file included from net/netfilter/xt_state.c:13: include/net/netfilter/nf_conntrack_compat.h: In function 'nf_ct_l3proto_try_module_get': include/net/netfilter/nf_conntrack_compat.h:70: error: 'PF_INET' undeclared (first use in this function) include/net/netfilter/nf_conntrack_compat.h:70: error: (Each undeclared identifier is reported only once include/net/netfilter/nf_conntrack_compat.h:70: error: for each function it appears in.) include/net/netfilter/nf_conntrack_compat.h:71: warning: control reaches end of non-void function make[2]: *** [net/netfilter/xt_state.o] Error 1 make[1]: *** [net/netfilter] Error 2 make: *** [net] Error 2 A simple fix is to have nf_conntrack_compat.h #include <linux/socket.h>. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-07Merge branch 'upstream-fixes' of ↵Jeff Garzik
master.kernel.org:/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream-fixes
2007-01-04[TCP]: Use old definition of beforeGerrit Renker
This reverts the new (unambiguous) definition of the TCP `before' relation. As pointed out in an example by Herbert Xu, there is existing code which implicitly requires the old definition in order to work correctly. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-03[X25]: proper prototype for x25_init_timers()Adrian Bunk
This patch adds a proper prototype for x25_init_timers() in include/net/x25.h Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-02[PATCH] ieee80211: WLAN_GET_SEQ_SEQ fix (select correct region)Zhu Yi
The WLAN_GET_SEQ_SEQ(seq) macro in ieee80211 is selecting the wrong region. Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-12-22[IPV6]: Dumb typo in generic csum_ipv6_magic()Al Viro
... duh Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-22[SCTP]: make 2 functions staticAdrian Bunk
This patch makes the following needlessly global functions static: - ipv6.c: sctp_inet6addr_event() - protocol.c: sctp_inetaddr_event() Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-22[SCTP]: Fix typo adaption -> adaptation as per the latest API draft.Ivan Skytte Jorgensen
Signed-off-by: Ivan Skytte Jorgensen <isj-sctp@i1.dk> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-22[TCP]: Fix ambiguity in the `before' relation.Gerrit Renker
While looking at DCCP sequence numbers, I stumbled over a problem with the following definition of before in tcp.h: static inline int before(__u32 seq1, __u32 seq2) { return (__s32)(seq1-seq2) < 0; } Problem: This definition suffers from an an ambiguity, i.e. always before(a, (a + 2^31) % 2^32)) = 1 before((a + 2^31) % 2^32), a) = 1 In text: when the difference between a and b amounts to 2^31, a is always considered `before' b, the function can not decide. The reason is that implicitly 0 is `before' 1 ... 2^31-1 ... 2^31 Solution: There is a simple fix, by defining before in such a way that 0 is no longer `before' 2^31, i.e. 0 `before' 1 ... 2^31-1 By not using the middle between 0 and 2^32, before can be made unambiguous. This is achieved by testing whether seq2-seq1 > 0 (using signed 32-bit arithmetic). I attach a patch to codify this. Also the `after' relation is basically a redefinition of `before', it is now defined as a macro after before. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-17[AX.25]: Fix unchecked rose_add_loopback_neigh usesRalf Baechle
rose_add_loopback_neigh uses kmalloc and the callers were ignoring the error value. Rewrite to let the caller deal with the allocation. This allows the use of static allocation of kmalloc use entirely. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-17[AX.25]: Fix unchecked ax25_linkfail_register usesRalf Baechle
ax25_linkfail_register uses kmalloc and the callers were ignoring the error value. Rewrite to let the caller deal with the allocation. This allows the use of static allocation of kmalloc use entirely. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-17[AX.25]: Fix unchecked ax25_protocol_register uses.Ralf Baechle
Replace ax25_protocol_register by ax25_register_pid which assumes the caller has done the memory allocation. This allows replacing the kmalloc allocations entirely by static allocations. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-17[AX.25]: Mark all kmalloc users __must_checkRalf Baechle
The recent fix 0506d4068bad834aab1141b5dc5e748eb175c6b3 made obvious that error values were not being propagated through the AX.25 stack. To help with that this patch marks all kmalloc users in the AX.25, NETROM and ROSE stacks as __must_check. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-13[IPV6]: Make fib6_node subtree depend on IPV6_SUBTREESKim Nordlund
Make fib6_node 'subtree' depend on IPV6_SUBTREES. Signed-off-by: Kim Nordlund <kim.nordlund@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-13[SCTP]: Add support for SCTP_CONTEXT socket option.Ivan Skytte Jorgensen
Signed-off-by: Ivan Skytte Jorgensen <isj-sctp@i1.dk> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-13[SCTP]: Handle address add/delete events in a more efficient way.Sridhar Samudrala
Currently in SCTP, we maintain a local address list by rebuilding the whole list from the device list whenever we get a address add/delete event. This patch fixes it by only adding/deleting the address for which we receive the event. Also removed the sctp_local_addr_lock() which is no longer needed as we now use list_for_each_safe() to traverse this list. This fixes the bugs in sctp_copy_laddrs_xxx() routines where we do copy_to_user() while holding this lock. Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-13[NETFILTER]: x_tables: error if ip_conntrack is asked to handle IPv6 packetsYasuyuki Kozakai
To do that, this makes nf_ct_l3proto_try_module_{get,put} compatible functions. As a result we can remove '#ifdef' surrounds and direct call of need_conntrack(). Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-13[PATCH] hci endianness annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-11[HAMRADIO]: Fix baycom_epp.c compile failure.Ralf Baechle
Fix foobar in 15b1c0e822f578306332d4f4c449250db5c5dceb and e8cc49bb0fdb9e18a99e6780073d1400ba2b0d1f patch series. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-10[PATCH] sysctl: remove unused "context" paramAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Andi Kleen <ak@suse.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: David Howells <dhowells@redhat.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08[AX.25]: Fix default address and broadcast address initialization.Ralf Baechle
Only the callsign but not the SSID part of an AX.25 address is ASCII based but Linux by initializes the SSID which should be just a 4-bit number from ASCII anyway. Fix that and convert the code to use a shared constant for both default addresses. While at it, use the same style for null_ax25_address also. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-08[AX.25]: Constify ax25 utility functionsRalf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-08[NET]: Convert hh_lock to seqlock.Stephen Hemminger
The hard header cache is in the main output path, so using seqlock instead of reader/writer lock should reduce overhead. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-08[PATCH] tty: switch to ktermios and new frameworkAlan Cox
This is the core of the switch to the new framework. I've split it from the driver patches which are mostly search/replace and would encourage people to give this one a good hard stare. The references to BOTHER and ISHIFT are the termios values that must be defined by a platform once it wants to turn on "new style" ioctl support. The code patches here ensure that providing 1. The termios overlays the ktermios in memory 2. The only new kernel only fields are c_ispeed/c_ospeed (or none) the existing behaviour is retained. This is true for the patches at this point in time. Future patches will define BOTHER, ISHIFT and enable newer termios structures for each architecture, and once they are all done some of the ifdefs also vanish. [akpm@osdl.org: warning fix] [akpm@osdl.org: IRDA fix] Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (48 commits) [NETFILTER]: Fix non-ANSI func. decl. [TG3]: Identify Serdes devices more clearly. [TG3]: Use msleep. [TG3]: Use netif_msg_*. [TG3]: Allow partial speed advertisement. [TG3]: Add TG3_FLG2_IS_NIC flag. [TG3]: Add 5787F device ID. [TG3]: Fix Phy loopback. [WANROUTER]: Kill kmalloc debugging code. [TCP] inet_twdr_hangman: Delete unnecessary memory barrier(). [NET]: Memory barrier cleanups [IPSEC]: Fix inetpeer leak in ipv4 xfrm dst entries. audit: disable ipsec auditing when CONFIG_AUDITSYSCALL=n audit: Add auditing to ipsec [IRDA] irlan: Fix compile warning when CONFIG_PROC_FS=n [IrDA]: Incorrect TTP header reservation [IrDA]: PXA FIR code device model conversion [GENETLINK]: Fix misplaced command flags. [NETLIK]: Add a pointer to the Generic Netlink wiki page. [IPV6] RAW: Don't release unlocked sock. ...
2006-12-07[PATCH] lockdep: annotate nfs/nfsd in-kernel socketsPeter Zijlstra
Stick NFS sockets in their own class to avoid some lockdep warnings. NFS sockets are never exposed to user-space, and will hence not trigger certain code paths that would otherwise pose deadlock scenarios. [akpm@osdl.org: cleanups] Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Steven Dickson <SteveD@redhat.com> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Acked-by: Neil Brown <neilb@suse.de> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> [ Fixed patch corruption by quilt, pointed out by Peter Zijlstra ] Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07[PATCH] slab: remove kmem_cache_tChristoph Lameter
Replace all uses of kmem_cache_t with struct kmem_cache. The patch was generated using the following script: #!/bin/sh # # Replace one string by another in all the kernel sources. # set -e for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do quilt add $file sed -e "1,\$s/$1/$2/g" $file >/tmp/$$ mv /tmp/$$ $file quilt refresh done The script was run like this sh replace kmem_cache_t "struct kmem_cache" Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07[PATCH] slab: remove SLAB_ATOMICChristoph Lameter
SLAB_ATOMIC is an alias of GFP_ATOMIC Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-06audit: disable ipsec auditing when CONFIG_AUDITSYSCALL=nJoy Latten
Disables auditing in ipsec when CONFIG_AUDITSYSCALL is disabled in the kernel. Also includes a bug fix for xfrm_state.c as a result of original ipsec audit patch. Signed-off-by: Joy Latten <latten@austin.ibm.com> Signed-off-by: James Morris <jmorris@namei.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-06audit: Add auditing to ipsecJoy Latten
An audit message occurs when an ipsec SA or ipsec policy is created/deleted. Signed-off-by: Joy Latten <latten@austin.ibm.com> Signed-off-by: James Morris <jmorris@namei.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-06[IRDA] irlan: Fix compile warning when CONFIG_PROC_FS=nRandy Dunlap
include/net/irda/irlan_filter.h:31: warning: 'struct seq_file' declared inside parameter list include/net/irda/irlan_filter.h:31: warning: its scope is only this definition or declaration, which is probably not what you want Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-05Merge branch 'master' of ↵David Howells
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: drivers/ata/libata-scsi.c include/linux/libata.h Futher merge of Linus's head and compilation fixups. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-12-05Merge branch 'master' of ↵David Howells
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: drivers/infiniband/core/iwcm.c drivers/net/chelsio/cxgb2.c drivers/net/wireless/bcm43xx/bcm43xx_main.c drivers/net/wireless/prism54/islpci_eth.c drivers/usb/core/hub.h drivers/usb/input/hid-core.c net/core/netpoll.c Fix up merge failures with Linus's head and fix new compilation failures. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-12-04[PATCH] severing skbuff.h -> mm.hAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-12-04[PATCH] severing skbuff.h -> poll.hAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-12-02[NETFILTER]: nf_conntrack/nf_nat: add PPTP helper portPatrick McHardy
Add nf_conntrack port of the PPtP conntrack/NAT helper. Since there seems to be no IPv6-capable PPtP implementation the helper only support IPv4. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[NETFILTER]: nf_conntrack/nf_nat: add H.323 helper portPatrick McHardy
Add IPv4 and IPv6 capable nf_conntrack port of the H.323 conntrack/NAT helper. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>