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2008-01-28[NETFILTER]: nf_queue: clean up error pathsPatrick McHardy1-53/+40
Move duplicated error handling to end of function and add a helper function to release the device and module references from the queue entry. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: {nfnetlink,ip,ip6}_queue: kill issue_verdictPatrick McHardy4-44/+8
Now that issue_verdict doesn't need to free the queue entries anymore, all it does is disable local BHs and call nf_reinject. Move the BH disabling to the okfn invocation in nf_reinject and kill the issue_verdict functions. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nf_queue: move list_head/skb/id to struct nf_infoPatrick McHardy8-190/+132
Move common fields for queue management to struct nf_info and rename it to struct nf_queue_entry. The avoids one allocation/free per packet and simplifies the code a bit. Alternatively we could add some private room at the tail, but since all current users use identical structs this seems easier. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: ip6_queue: resync dev-index based flushingPatrick McHardy1-1/+10
Resync dev_cmp to take bridge devices into account. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: ip6_queue: deobfuscate entry lookupsPatrick McHardy1-64/+37
A queue entry lookup currently looks like this: ipq_find_dequeue_entry -> __ipq_find_dequeue_entry -> __ipq_find_entry -> cmpfn -> id_cmp Use simple open-coded list walking and kill the cmpfn for ipq_find_dequeue_entry. Instead add it to ipq_flush (after similar cleanups) and use ipq_flush for both complete flushes and flushing entries related to a device. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: ip_queue: deobfuscate entry lookupsPatrick McHardy1-64/+37
A queue entry lookup currently looks like this: ipq_find_dequeue_entry -> __ipq_find_dequeue_entry -> __ipq_find_entry -> cmpfn -> id_cmp Use simple open-coded list walking and kill the cmpfn for ipq_find_dequeue_entry. Instead add it to ipq_flush (after similar cleanups) and use ipq_flush for both complete flushes and flushing entries related to a device. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nfnetlink_queue: deobfuscate entry lookupsPatrick McHardy1-69/+31
A queue entry lookup currently looks like this: find_dequeue_entry -> __find_dequeue_entry -> __find_entry -> cmpfn -> id_cmp Use simple open-coded list walking and kill the cmpfn for find_dequeue_entry. Instead add it to nfqnl_flush (after similar cleanups) and use nfqnl_flush for both complete flushes and flushing entries related to a device. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: {nf_netlink,ip,ip6}_queue: use list_for_each_entryPatrick McHardy3-15/+9
Use list_add_tail/list_for_each_entry instead of list_add and list_for_each_prev as a preparation for switching to RCU. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nf_queue: move queueing related functions/struct to seperate headerPatrick McHardy8-30/+40
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nf_queue: remove unused data pointerPatrick McHardy5-6/+5
Remove the data pointer from struct nf_queue_handler. It has never been used and is useless for the only handler that really matters, nfnetlink_queue, since the handler is shared between all instances. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nf_queue: make queue_handler constPatrick McHardy5-13/+13
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nf_queue: remove unnecessary hook existance checkPatrick McHardy2-18/+0
We hold a module reference for each queued packet, so the hook that queued the packet can't disappear. Also remove an obsolete comment stating the opposite. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nf_queue: minor cleanupPatrick McHardy1-11/+20
Clean up if (x) y; constructs. We've got nothing to hide :) Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: Mark hooks __read_mostlyPatrick McHardy17-17/+17
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: Use nf_register_hooks for multiple registrationsPatrick McHardy2-91/+57
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nf_conntrack_proto_icmp: kill extern declaration in .c filePatrick McHardy1-1/+0
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nf_ct_h323: remove ipv6 module dependencyPatrick McHardy4-7/+27
nf_conntrack_h323 needs ip6_route_output for the call forwarding filter. Add a ->route function to nf_afinfo and use that to avoid pulling in the ipv6 module. Fix the #ifdef for the IPv6 code while I'm at it - the IPv6 support is only needed when IPv6 conntrack is enabled. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: xt_hashlimit: remove ip6tables module dependencyPatrick McHardy1-3/+5
Switch from ipv6_find_hdr to ipv6_skip_exthdr to avoid pulling in ip6_tables and ipv6 when only using it for IPv4. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: {ip,ip6}t_LOG: log GIDMaciej Soltysiak2-2/+6
Log GID in addition to UID Signed-off-by: Maciej Soltysiak <maciej.soltysiak@ae.poznan.pl> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: x_tables: add rateest matchPatrick McHardy5-0/+223
Add rate estimator match. The rate estimator match can match on estimated rates by the RATEEST target. It supports matching on absolute bps/pps values, comparing two rate estimators and matching on the difference between two rate estimators. This is what I use to route outgoing data connections from a FTP server over two lines based on the available bandwidth: # estimate outgoing rates iptables -t mangle -A POSTROUTING -o eth0 -j RATEEST --rateest-name eth0 \ --rateest-interval 250ms \ --rateest-ewma 0.5s iptables -t mangle -A POSTROUTING -o ppp0 -j RATEEST --rateest-name ppp0 \ --rateest-interval 250ms \ --rateest-ewma 0.5s # mark based on available bandwidth iptables -t mangle -A BALANCE -m state --state NEW \ -m helper --helper ftp \ -m rateest --rateest-delta \ --rateest1 eth0 \ --rateest-bps1 2.5mbit \ --rateest-gt \ --rateest2 ppp0 \ --rateest-bps2 2mbit \ -j CONNMARK --set-mark 0x1 iptables -t mangle -A BALANCE -m state --state NEW \ -m helper --helper ftp \ -m rateest --rateest-delta \ --rateest1 ppp0 \ --rateest-bps1 2mbit \ --rateest-gt \ --rateest2 eth0 \ --rateest-bps2 2.5mbit \ -j CONNMARK --set-mark 0x2 iptables -t mangle -A BALANCE -j CONNMARK --restore-mark Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: x_tables: add RATEEST targetPatrick McHardy6-0/+244
Add new rate estimator target (using gen_estimator). In combination with the rateest match (next patch) this can be used for load-based multipath routing. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: ip_tables: remove obsolete SAME targetPatrick McHardy4-193/+0
Remove the ipt_SAME target as scheduled in feature-removal-schedule. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: IPv6 capable xt_TOS v1 targetJan Engelhardt3-1/+69
Extends the xt_DSCP target by xt_TOS v1 to add support for selectively setting and flipping any bit in the IPv4 TOS and IPv6 Priority fields. (ipt_TOS and xt_DSCP only accepted a limited range of possible values.) 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]: IPv6 capable xt_tos v1 matchJan Engelhardt2-0/+38
Extends the xt_dscp match by xt_tos v1 to add support for selectively matching any bit in the IPv4 TOS and IPv6 Priority fields. (ipt_tos and xt_dscp only accepted a limited range of possible values.) 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]: Merge ipt_TOS into xt_DSCPJan Engelhardt4-12/+56
Merge ipt_TOS into xt_DSCP. Merge ipt_TOS (tos v0 target) into xt_DSCP. They both modify the same field in the IPv4 header, so it seems reasonable to keep them in one piece. This is part two of the implicit 4-patch series to move tos to xtables and extend it by IPv6. 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]: Merge ipt_tos into xt_dscpJan Engelhardt5-63/+27
Merge ipt_tos into xt_dscp. Merge ipt_tos (tos v0 match) into xt_dscp. They both match on the same field in the IPv4 header, so it seems reasonable to keep them in one piece. This is part one of the implicit 4-patch series to move tos to xtables and extend it by IPv6. 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[NET]: Constify include/net/dsfield.hJan Engelhardt1-3/+3
Constify include/net/dsfield.h 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]: Use lowercase names for matches in KconfigJan Engelhardt3-18/+18
Unify netfilter match kconfig descriptions Consistently use lowercase for matches in kconfig one-line descriptions and name the match module. 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]: ipt_addrtype: limit address type checking to an interfaceLaszlo Attila Toth2-16/+102
Addrtype match has a new revision (1), which lets address type checking limited to the interface the current packet belongs to. Either incoming or outgoing interface can be used depending on the current hook. In the FORWARD hook two maches should be used if both interfaces have to be checked. The new structure is ipt_addrtype_info_v1. Revision 0 lets older userspace programs use the match as earlier. ipt_addrtype_info is used. Signed-off-by: Laszlo Attila Toth <panther@balabit.hu> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV4]: Add inet_dev_addr_type()Laszlo Attila Toth2-2/+20
Address type search can be limited to an interface by inet_dev_addr_type function. Signed-off-by: Laszlo Attila Toth <panther@balabit.hu> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: merge ipt_owner/ip6t_owner in xt_ownerJan Engelhardt11-194/+237
xt_owner merges ipt_owner and ip6t_owner, and adds a flag to match on socket (non-)existence. 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]: x_tables: remove obsolete overflow checkPatrick McHardy3-6/+0
We're not multiplying the size with the number of CPUs anymore, so the check is obsolete. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: x_tables: struct xt_table_info dietEric Dumazet5-23/+18
Instead of using a big array of NR_CPUS entries, we can compute the size needed at runtime, using nr_cpu_ids This should save some ram (especially on David's machines where NR_CPUS=4096 : 32 KB can be saved per table, and 64KB for dynamically allocated ones (because of slab/slub alignements) ) In particular, the 'bootstrap' tables are not any more static (in data section) but on stack as their size is now very small. This also should reduce the size used on stack in compat functions (get_info() declares an automatic variable, that could be bigger than kernel stack size for big NR_CPUS) Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: x_tables: consistent and unique symbol namesJan Engelhardt70-1593/+1262
Give all Netfilter modules consistent and unique symbol names. 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]: replace list_for_each with list_for_each_entryLi Zefan2-8/+6
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: x_tables: add TCPOPTSTRIP targetSven Schnelle4-0/+169
Signed-off-by: Sven Schnelle <svens@bitebene.org> Signed-off-by: Jan Engelhardt <jengelh@gmx.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NET]: netns compilation speedupDenis V. Lunev2-2/+3
This patch speedups compilation when net_namespace.h is changed. Signed-off-by: Denis V. Lunev <den@openvz.org> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETLINK]: af_netlink.c checkpatch cleanupsPatrick McHardy1-38/+43
Fix large number of checkpatch errors. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPSEC]: Use the correct family for input state lookupHerbert Xu4-1/+7
When merging the input paths of IPsec I accidentally left a hard-coded AF_INET for the state lookup call. This broke IPv6 obviously. This patch fixes by getting the input callers to specify the family through skb->cb. Credit goes to Kazunori Miyazawa for diagnosing this and providing an initial patch. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[UDP]: Counter increment should be in USER mode for recvmsgWang Chen1-1/+1
System calls should be USER. So change the BH to USER for UDP*_INC_STATS_BH(). Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[UDP]: Clean up for IS_UDPLITE macroWang Chen2-14/+19
Since we have macro IS_UDPLITE, we can use it. Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[UDP]: Defer InDataGrams increment until recvmsg() does checksumWang Chen3-6/+7
Thanks dave, herbert, gerrit, andi and other people for your discussion about this problem. UdpInDatagrams can be confusing because it counts packets that might be dropped later. Move UdpInDatagrams into recvmsg() as allowed by the RFC. Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[TCP]: Abstract tp->highest_sack accessing & point to next skbIlpo Järvinen3-21/+52
Pointing to the next skb is necessary to avoid referencing already SACKed skbs which will soon be on a separate list. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[TCP]: Cleanup local variables of clean_rtx_queueIlpo Järvinen1-14/+12
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[TCP]: Add unlikely() to urgent handling in clean_rtx_queueIlpo Järvinen1-2/+2
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[TCP]: Remove duplicated code block from clean_rtx_queueIlpo Järvinen1-29/+21
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[TCP]: Add tcp_for_write_queue_from_safe and use it in mtu_probeIlpo Järvinen2-4/+9
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[TCP]: Remove local variable and use packets_in_flight directlyIlpo Järvinen1-6/+3
Lines won't be that long and it's compiler's job to optimize them. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[TCP]: MTUprobe: prepare skb fields earlierIlpo Järvinen1-1/+2
They better be valid when call to write_queue functions is made once things that follow are going in. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[TCP]: Cong.ctrl modules: remove unused good_ack from cong_avoidIlpo Järvinen14-35/+24
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
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