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2008-01-28[NET]: Remove unneeded ifdefs from sysctl_net_core.cPavel Emelyanov
This file is already compiled out when the SYSCTL=n, so these ifdefs, that enclose the whole file, can be removed. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: Select CONFIG_NETFILTER_NETLINK when neededPatrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: remove NF_CONNTRACK_ENABLED optionPatrick McHardy
Remove the NF_CONNTRACK_ENABLED option. It was meant for a smoother upgrade to nf_conntrack, people having reconfigured their kernel at least once since ip_conntrack was removed will have the NF_CONNTRACK option already set. People upgrading from older kernels have to reconfigure a lot anyway. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nfnetlink_queue: update copyrightPatrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nfnetlink_queue: remove useless enqueue status codesPatrick McHardy
The queueing core doesn't care about the exact return value from the queue handler, so there's no need to go through the trouble of returning a meaningful value as long as we indicate an error. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nfnetlink_queue: eliminate impossible switch casePatrick McHardy
We don't need a default case in nfqnl_build_packet_message(), the copy_mode is validated when it is set. Tell the compiler about the possible types and remove the default case. Saves 80b of text on x86_64. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nfnetlink_queue: use endianness-aware attribute functionsPatrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nfnetlink_queue: mark hash table __read_mostlyPatrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nfnetlink_queue: remove useless debuggingPatrick McHardy
Originally I wanted to just remove the QDEBUG macro and use pr_debug, but none of the messages seems worth keeping. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nfnetlink_queue: kill useless wrapperPatrick McHardy
nfqnl_set_mode takes the queue lock and calls __nfqnl_set_mode. Just move the code from __nfqnl_set_mode to nfqnl_set_mode since there is no other user. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nfnetlink: use RCU for queue instances hashPatrick McHardy
Use RCU for queue instances hash. Avoids multiple atomic operations for each packet. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nfnetlink_queue: fix checks in nfqnl_recv_configPatrick McHardy
The peer_pid must be checked in all cases when a queue exists, currently it is not checked if for NFQA_CFG_QUEUE_MAXLEN when a NFQA_CFG_CMD attribute exists in some cases. Same for the queue existance check, which can cause a NULL pointer dereference. Also consistently return -ENODEV for "queue not found". -ENOENT would be better, but that is already used to indicate a queued skb id doesn't exist. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nfnetlink_queue: avoid unnecessary atomic operationPatrick McHardy
The sequence counter doesn't need to be an atomic_t, just move the increment inside the locked section. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: remove annoying debugging messagePatrick McHardy
Don't log "nf_hook: Verdict = QUEUE." message with NETFILTER_DEBUG=y. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nf_queue: clean up error pathsPatrick McHardy
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 McHardy
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 McHardy
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 McHardy
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 McHardy
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 McHardy
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 McHardy
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 McHardy
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 McHardy
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 McHardy
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 McHardy
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 McHardy
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 McHardy
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 McHardy
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 McHardy
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 McHardy
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 McHardy
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 McHardy
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 Soltysiak
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 McHardy
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 McHardy
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 McHardy
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 Engelhardt
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 Engelhardt
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 Engelhardt
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 Engelhardt
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 Engelhardt
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 Engelhardt
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 Toth
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 Toth
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 Engelhardt
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 McHardy
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 Dumazet
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 Engelhardt
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 Zefan
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 Schnelle
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>