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2008-01-28[NETFILTER]: Update modules' descriptionsJan Engelhardt
Updates the MODULE_DESCRIPTION() tags for all Netfilter modules, actually describing what the module does and not just "netfilter XYZ target". Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: xt_policy: use the new union nf_inet_addrJan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: xt_pkttype: IPv6 multicast address recognitionJan Engelhardt
Signed-off-by: Jan Engelhart <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: xt_pkttype: Add explicit check for IPv4Jan Engelhardt
In the PACKET_LOOPBACK case, the skb data was always interpreted as IPv4, but that is not valid for IPv6, obviously. Fix this by adding an extra condition to check for AF_INET. Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: xt_mark match, revision 1Jan Engelhardt
Introduces the xt_mark match revision 1. It uses fixed types, eventually obsoleting revision 0 some day (uses nonfixed types). Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: xt_conntrack match, revision 1Jan Engelhardt
Introduces the xt_conntrack match revision 1. It uses fixed types, the new nf_inet_addr and comes with IPv6 support, thereby completely superseding xt_state. Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: Extend nf_inet_addr with in{,6}_addrJan Engelhardt
Extend union nf_inet_addr with struct in_addr and in6_addr. Useful because a lot of in-kernel IPv4 and IPv6 functions use in_addr/in6_addr. Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: xt_connmark match, revision 1Jan Engelhardt
Introduces the xt_connmark match revision 1. It uses fixed types, eventually obsoleting revision 0 some day (uses nonfixed types). (Unfixed types like "unsigned long" do not play well with mixed user-/kernelspace "bitness", e.g. 32/64, as is common on SPARC64, and need extra compat code.) Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: xt_MARK target, revision 2Jan Engelhardt
Introduces the xt_MARK target revision 2. It uses fixed types, and also uses the more expressive XOR logic. Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: xt_CONNMARK target, revision 1Jan Engelhardt
Introduces the xt_CONNMARK target revision 1. It uses fixed types, and also uses the more expressive XOR logic. Futhermore, it allows to selectively pick bits from both the ctmark and the nfmark in the SAVE and RESTORE operations. Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: Annotate start of kernel fields in NF headersJan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: xt_TOS: Properly set the TOS fieldJan Engelhardt
Fix incorrect mask value passed to ipv4_change_dsfield/ipv6_change_dsfield. Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: xt_TOS: Change semantic of mask valueJan Engelhardt
This patch changes the behavior of xt_TOS v1 so that the mask value the user supplies means "zero out these bits" rather than "keep these bits". This is more easy on the user, as (I would assume) people keep more bits than zeroing, so, an example: Action: Set bit 0x01. before (&): iptables -j TOS --set-tos 0x01/0xFE after (&~): iptables -j TOS --set-tos 0x01/0x01 This is not too "tragic" with xt_TOS, but where larger fields are used (e.g. proposed xt_MARK v2), `--set-xmar 0x01/0x01` vs. `--set-xmark 0x01/0xFFFFFFFE` really makes a difference. Other target(!) modules, such as xt_TPROXY also use &~ rather than &, so let's get to a common ground. (Since xt_TOS has not yet left the development tree en direction to mainline, the semantic can be changed as proposed without breaking iptables.) Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: remove ipt_TOS.cJan Engelhardt
Commit 88c85d81f74f92371745158aebc5cbf490412002 forgot to remove the old ipt_TOS file (whose code has been merged into xt_DSCP). Remove it now. Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: Remove some EXPERIMENTAL dependenciesPatrick McHardy
Most of the netfilter modules are not considered experimental anymore, the only ones I want to keep marked as EXPERIMENTAL are: - TCPOPTSTRIP target, which is brand new. - SANE helper, which is quite new. - CLUSTERIP target, which I believe hasn't had much testing despite being in the kernel for quite a long time. - SCTP match and conntrack protocol, which are a mess and need to be reviewed and cleaned up before I would trust them. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: Hide a few more options under NETFILTER_ADVANCEDPatrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV4]: fib hash|trie initializationStephen Hemminger
Initialization of the slab cache's should be done when IP is initialized to make sure of available memory, and that code can be marked __init. Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV4] fib_trie: size and statisticsStephen Hemminger
Show number of entries in trie, the size field was being set but never used, but it only counted leaves, not all entries. Refactor the two cases in fib_triestat_seq_show into a single routine. Note: the stat structure was being malloc'd but the stack usage isn't so high (288 bytes) that it is worth the additional complexity. Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[FIB]: Avoid using static variables without proper lockingEric Dumazet
fib_trie_seq_show() uses two helper functions, rtn_scope() and rtn_type() that can write to static storage without locking. Just pass to them a temporary buffer to avoid potential corruption (probably not triggerable but still...) Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS]: Process inet_confirm_addr in the correct namespace.Denis V. Lunev
inet_confirm_addr can be called with NULL in_dev from arp_ignore iff scope is RT_SCOPE_LINK. Lets always pass the device and check for RT_SCOPE_LINK scope inside inet_confirm_addr. This let us take network namespace from in_device a need for an additional argument. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV4]: Remove extra argument from arp_ignore.Denis V. Lunev
arp_ignore has two arguments: dev & in_dev. dev is used for inet_confirm_addr calling only. inet_confirm_addr, in turn, either gets in_dev from the device passed or iterates over all network devices if the device passed is NULL. It seems logical to directly pass in_dev into inet_confirm_addr. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[ARP]: neigh_parms_put(destroy) are essentially local to core/neighbour.c.Denis V. Lunev
Make them static. [ Moved the inline before, instead of after, call sites. -DaveM ] Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[ARP]: Remove forward declaration of neigh_changeaddr.Denis V. Lunev
No need for this. It is declared in the neighbour.h Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[ARP]: Remove overkill checks from neigh_param_alloc.Denis V. Lunev
Valid network device is always passed into neigh_param_alloc, so remove extra checking for dev == NULL. Additionally, cleanup bogus netns assignment. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV4]: fib_rules_unregister is essentially void.Denis V. Lunev
fib_rules_unregister is called only after successful register and the return code is never checked. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS]: Make arp code network namespace consistent.Denis V. Lunev
Some calls in the arp.c have network namespace as an argument. Getting init_net inside these functions is simply inconsistent. Fix this. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[ARP]: Move inet_addr_type call after simple error checks in arp_contructor.Denis V. Lunev
The neighbour entry will be destroyed in the case of error, so it is pointless to perform constly routing table lookup in this case. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS][RAW]: Create the /proc/net/raw(6) in each namespace.Pavel Emelyanov
To do so, just register the proper subsystem and create files in ->init callbacks. No other special per-namespace handling for raw sockets is required. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS][RAW]: Eliminate explicit init_net references.Pavel Emelyanov
Happily, in all the rest places (->bind callbacks only), that require the struct net, we have a socket, so get the net from it. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS][RAW]: Make /proc/net/raw(6) show per-namespace socket list.Pavel Emelyanov
Pull the struct net pointer up to the showing functions to filter the sockets depending on their namespaces. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS][RAW]: Make ipv[46] raw sockets lookup namespaces aware.Pavel Emelyanov
This requires just to pass the appropriate struct net pointer into __raw_v[46]_lookup and skip sockets that do not belong to a needed namespace. The proper net is get from skb->dev in all the cases. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[FIB]: full_children & empty_children should be uint, not ushortEric Dumazet
If declared as unsigned short, these fields can overflow, and whole trie logic is broken. I could not make the machine crash, but some tnode can never be freed. Note for 64 bit arches : By reordering t_key and parent in [node, leaf, tnode] structures, we can use 32 bits hole after t_key so that sizeof(struct tnode) doesnt change after this patch. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Robert Olsson <robert.olsson@its.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[AX25]: sparse cleanupsEric Dumazet
net/ax25/ax25_route.c:251:13: warning: context imbalance in 'ax25_rt_seq_start' - wrong count at exit net/ax25/ax25_route.c:276:13: warning: context imbalance in 'ax25_rt_seq_stop' - unexpected unlock net/ax25/ax25_std_timer.c:65:25: warning: expensive signed divide net/ax25/ax25_uid.c:46:1: warning: symbol 'ax25_uid_list' was not declared. Should it be static? net/ax25/ax25_uid.c:146:13: warning: context imbalance in 'ax25_uid_seq_start' - wrong count at exit net/ax25/ax25_uid.c:169:13: warning: context imbalance in 'ax25_uid_seq_stop' - unexpected unlock net/ax25/af_ax25.c:573:28: warning: expensive signed divide net/ax25/af_ax25.c:1865:13: warning: context imbalance in 'ax25_info_start' - wrong count at exit net/ax25/af_ax25.c:1888:13: warning: context imbalance in 'ax25_info_stop' - unexpected unlock net/ax25/ax25_ds_timer.c:133:25: warning: expensive signed divide Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[X25]: Avoid divides and sparse warningsEric Dumazet
CHECK net/x25/af_x25.c net/x25/af_x25.c:117:46: warning: expensive signed divide CHECK net/x25/x25_facilities.c net/x25/x25_facilities.c:209:30: warning: expensive signed divide CHECK net/x25/x25_in.c net/x25/x25_in.c:250:26: warning: expensive signed divide CHECK net/x25/x25_proc.c net/x25/x25_proc.c:48:11: warning: context imbalance in 'x25_seq_route_start' - wrong count at exit net/x25/x25_proc.c:72:13: warning: context imbalance in 'x25_seq_route_stop' - unexpected unlock net/x25/x25_proc.c:112:11: warning: context imbalance in 'x25_seq_socket_start' - wrong count at exit net/x25/x25_proc.c:129:13: warning: context imbalance in 'x25_seq_socket_stop' - unexpected unlock net/x25/x25_proc.c:190:11: warning: context imbalance in 'x25_seq_forward_start' - wrong count at exit net/x25/x25_proc.c:215:13: warning: context imbalance in 'x25_seq_forward_stop' - unexpected unlock CHECK net/x25/x25_subr.c net/x25/x25_subr.c:362:57: warning: expensive signed divide Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV4] fib_trie: removes a memset() call in tnode_new()Eric Dumazet
tnode_alloc() already clears allocated memory, using kcalloc() or alloc_pages(GFP_KERNEL|__GFP_ZERO, ...) Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV4] FIB: Include nexthop device indexes in fib_info hashfn.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[XFRM]: Fix struct xfrm_algo code formatting.David S. Miller
Realign struct members. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[XFRM]: alg_key_len should be unsigned to avoid integer dividesEric Dumazet
alg_key_len is currently defined as 'signed int'. This unfortunatly leads to integer divides in several paths. Converting it to unsigned is safe and saves 208 bytes of text on i386. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[PKT_SCHED] HTB: htb_classid is dead static inlineIlpo Järvinen
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NET] core/utils.c: digit2bin is dead static inlineIlpo Järvinen
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[FIB]: Reduce text size of net/ipv4/fib_trie.oEric Dumazet
In struct tnode, we use two fields of 5 bits for 'pos' and 'bits'. Switching to plain 'unsigned char' (8 bits) take the same space because of compiler alignments, and reduce text size by 435 bytes on i386. On i386 : $ size net/ipv4/fib_trie.o.before_patch net/ipv4/fib_trie.o text data bss dec hex filename 13714 4 64 13782 35d6 net/ipv4/fib_trie.o.before 13279 4 64 13347 3423 net/ipv4/fib_trie.o Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Acked-by: Stephen Hemminger <stephen.hemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER] xt_policy.c: kill some bloatIlpo Järvinen
net/netfilter/xt_policy.c: policy_mt | -906 1 function changed, 906 bytes removed, diff: -906 net/netfilter/xt_policy.c: match_xfrm_state | +427 1 function changed, 427 bytes added, diff: +427 net/netfilter/xt_policy.o: 2 functions changed, 427 bytes added, 906 bytes removed, diff: -479 Alternatively, this could be done by combining identical parts of the match_policy_in/out() Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV4] fib_trie: Fix sparse warnings.Stephen Hemminger
Make FIB TRIE go through sparse checker without warnings. Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV4] fib_trie: Add statistics.Stephen Hemminger
The FIB TRIE code has a bunch of statistics, but the code is hidden behind an ifdef that was never implemented. Since it was dead code, it was broken as well. This patch fixes that by making it a config option. Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV4] FIB: printk related cleanupsStephen Hemminger
printk related cleanups: * Get rid of unused printk wrappers. * Make bug checks into KERN_WARNING because KERN_DEBUG gets ignored * Turn one cryptic old message into something real * Make sure all messages have KERN_XXX Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV4] fib_trie: fib_insert_node cleanupStephen Hemminger
The only error from fib_insert_node is if memory allocation fails, so instead of passing by reference, just use the convention of returning NULL. Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV4] fib_trie: Use %u for unsigned printfs.Stephen Hemminger
Use %u instead of %d when printing unsigned values. Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV4] fib_trie: Get rid of unused revision element.Stephen Hemminger
The revision element must of been part of an earlier design, because currently it is set but never used. Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV4] fib_trie: Get rid of trie_init().Stephen Hemminger
trie_init is worthless it is just zeroing stuff that is already zero! Move the memset() down to make it obvious. Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[PKTGEN]: uninline getCurUsIlpo Järvinen
net/core/pktgen.c: pktgen_stop_device | -50 pktgen_run | -105 pktgen_if_show | -37 pktgen_thread_worker | -702 4 functions changed, 894 bytes removed, diff: -894 net/core/pktgen.c: getCurUs | +36 1 function changed, 36 bytes added, diff: +36 net/core/pktgen.o: 5 functions changed, 36 bytes added, 894 bytes removed, diff: -858 Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
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