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path: root/net/netfilter/nfnetlink_queue_ct.c (follow)
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2013-08-28netfilter: nf_conntrack: make sequence number adjustments usuable without NATPatrick McHardy1-4/+4
Split out sequence number adjustments from NAT and move them to the conntrack core to make them usable for SYN proxying. The sequence number adjustment information is moved to a seperate extend. The extend is added to new conntracks when a NAT mapping is set up for a connection using a helper. As a side effect, this saves 24 bytes per connection with NAT in the common case that a connection does not have a helper assigned. Signed-off-by: Patrick McHardy <kaber@trash.net> Tested-by: Martin Topholm <mph@one.com> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-08-13netfilter: nfnetlink_queue: allow to attach expectations to conntracksPablo Neira Ayuso1-0/+15
This patch adds the capability to attach expectations via nfnetlink_queue. This is required by conntrack helpers that trigger expectations based on the first packet seen like the TFTP and the DHCPv6 user-space helpers. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2012-06-23netfilter: nfnetlink_queue: fix sparse warning due to missing includePablo Neira Ayuso1-0/+1
This patch fixes a sparse warning due to missing include header file. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2012-06-22netfilter: nfnetlink_queue: fix compilation with CONFIG_NF_NAT=m and CONFIG_NF_CT_NETLINK=yPablo Neira Ayuso1-4/+4
LD init/built-in.o net/built-in.o:(.data+0x4408): undefined reference to `nf_nat_tcp_seq_adjust' make: *** [vmlinux] Error 1 This patch adds a new pointer hook (nfq_ct_nat_hook) similar to other existing in Netfilter to solve our complicated configuration dependencies. Reported-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2012-06-19netfilter: nfnetlink_queue: fix compilation with NF_CONNTRACK disabledPablo Neira Ayuso1-0/+97
In "9cb0176 netfilter: add glue code to integrate nfnetlink_queue and ctnetlink" the compilation with NF_CONNTRACK disabled is broken. This patch fixes this issue. I have moved the conntrack part into nfnetlink_queue_ct.c to avoid peppering the entire nfnetlink_queue.c code with ifdefs. I also needed to rename nfnetlink_queue.c to nfnetlink_queue_pkt.c to update the net/netfilter/Makefile to support conditional compilation of the conntrack integration. This patch also adds CONFIG_NETFILTER_QUEUE_CT in case you want to explicitly disable the integration between nf_conntrack and nfnetlink_queue. Reported-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>