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3d54015b75
linux/net/ipv4/netfilter
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Patrick McHardy a3a9f79e36 netfilter: tcp conntrack: fix unacknowledged data detection with NAT 
When NAT helpers change the TCP packet size, the highest seen sequence
number needs to be corrected. This is currently only done upwards, when
the packet size is reduced the sequence number is unchanged. This causes
TCP conntrack to falsely detect unacknowledged data and decrease the
timeout.

Fix by updating the highest seen sequence number in both directions after
packet mangling.

Tested-by: Krzysztof Piotr Oledzki <ole@ans.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-06-29 14:07:56 +02:00
..
arp_tables.c netfilter: xtables: remove another level of indent 2009-05-08 10:30:49 +02:00
arpt_mangle.c netfilter: xtables: move extension arguments into compound structure (5/6) 2008-10-08 11:35:19 +02:00
arptable_filter.c netfilter: x_tables: remove unneeded initializations 2009-02-18 16:30:20 +01:00
ip_queue.c netfilter: queue: use NFPROTO_ for queue callsites 2009-05-08 10:30:46 +02:00
ip_tables.c netfilter: ip_tables: fix build error 2009-06-12 01:53:09 +02:00
ipt_addrtype.c netfilter: netns-aware ipt_addrtype 2008-11-04 14:21:48 +01:00
ipt_ah.c netfilter: xtables: move extension arguments into compound structure (2/6) 2008-10-08 11:35:18 +02:00
ipt_CLUSTERIP.c net: replace NIPQUAD() in net/ipv4/netfilter/ 2008-10-31 00:53:08 -07:00
ipt_ecn.c netfilter: xtables: move extension arguments into compound structure (2/6) 2008-10-08 11:35:18 +02:00
ipt_ECN.c netfilter: xtables: move extension arguments into compound structure (5/6) 2008-10-08 11:35:19 +02:00
ipt_LOG.c netfilter: use a linked list of loggers 2009-03-16 14:54:21 +01:00
ipt_MASQUERADE.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-06-11 16:00:49 +02:00
ipt_NETMAP.c netfilter: xtables: move extension arguments into compound structure (5/6) 2008-10-08 11:35:19 +02:00
ipt_REDIRECT.c netfilter: xtables: move extension arguments into compound structure (5/6) 2008-10-08 11:35:19 +02:00
ipt_REJECT.c net: skb->dst accessors 2009-06-03 02:51:04 -07:00
ipt_ULOG.c netfilter: use a linked list of loggers 2009-03-16 14:54:21 +01:00
iptable_filter.c netfilter: x_tables: remove unneeded initializations 2009-02-18 16:30:20 +01:00
iptable_mangle.c netfilter: x_tables: remove unneeded initializations 2009-02-18 16:30:20 +01:00
iptable_raw.c netfilter: x_tables: remove unneeded initializations 2009-02-18 16:30:20 +01:00
iptable_security.c netfilter: x_tables: remove unneeded initializations 2009-02-18 16:30:20 +01:00
Kconfig netfilter: Kconfig spelling fixes (trivial) 2009-03-16 15:17:23 +01:00
Makefile netfilter: Combine ipt_ttl and ip6t_hl source 2009-02-18 18:39:31 +01:00
nf_conntrack_l3proto_ipv4_compat.c netfilter: nf_conntrack: use SLAB_DESTROY_BY_RCU and get rid of call_rcu() 2009-03-25 21:05:46 +01:00
nf_conntrack_l3proto_ipv4.c netfilter: nf_conntrack: calculate per-protocol nlattr size 2009-03-25 21:53:39 +01:00
nf_conntrack_proto_icmp.c netfilter: nf_ct_icmp: keep the ICMP ct entries longer 2009-06-08 15:53:43 +02:00
nf_defrag_ipv4.c netfilter: restore lost #ifdef guarding defrag exception 2008-10-14 11:56:59 -07:00
nf_nat_amanda.c [NETFILTER]: remove unneeded rcu_dereference() calls 2007-11-07 04:08:23 -08:00
nf_nat_core.c netfilter: nf_nat: add support for persistent mappings 2009-04-16 18:33:01 +02:00
nf_nat_ftp.c [NETFILTER]: remove unneeded rcu_dereference() calls 2007-11-07 04:08:23 -08:00
nf_nat_h323.c net: replace NIPQUAD() in net/ipv4/netfilter/ 2008-10-31 00:53:08 -07:00
nf_nat_helper.c netfilter: tcp conntrack: fix unacknowledged data detection with NAT 2009-06-29 14:07:56 +02:00
nf_nat_irc.c net: replace NIPQUAD() in net/ipv4/netfilter/ 2008-10-31 00:53:08 -07:00
nf_nat_pptp.c netfilter: netns nat: PPTP NAT in netns 2008-10-08 11:35:11 +02:00
nf_nat_proto_common.c nf_nat: use secure_ipv4_port_ephemeral() for NAT port randomization 2008-08-18 21:32:32 -07:00
nf_nat_proto_dccp.c [NETFILTER]: nf_conntrack: const annotations in nf_conntrack_sctp, nf_nat_proto_gre 2008-04-14 11:15:54 +02:00
nf_nat_proto_gre.c [NETFILTER]: nf_conntrack: const annotations in nf_conntrack_sctp, nf_nat_proto_gre 2008-04-14 11:15:54 +02:00
nf_nat_proto_icmp.c [NETFILTER]: nf_nat: use bool type in nf_nat_proto 2008-04-14 11:15:53 +02:00
nf_nat_proto_sctp.c netfilter: Fix extra semi-colon in skb_walk_frags() changes. 2009-06-09 18:05:28 -07:00
nf_nat_proto_tcp.c [NETFILTER]: nf_nat: use bool type in nf_nat_proto 2008-04-14 11:15:53 +02:00
nf_nat_proto_udp.c [NETFILTER]: nf_nat: use bool type in nf_nat_proto 2008-04-14 11:15:53 +02:00
nf_nat_proto_udplite.c [NETFILTER]: nf_nat: use bool type in nf_nat_proto 2008-04-14 11:15:53 +02:00
nf_nat_proto_unknown.c [NETFILTER]: nf_nat: use bool type in nf_nat_proto 2008-04-14 11:15:53 +02:00
nf_nat_rule.c netfilter: x_tables: remove unneeded initializations 2009-02-18 16:30:20 +01:00
nf_nat_sip.c net: replace NIPQUAD() in net/ipv4/netfilter/ 2008-10-31 00:53:08 -07:00
nf_nat_snmp_basic.c net: replace uses of __constant_{endian} 2009-02-01 00:45:17 -08:00
nf_nat_standalone.c net: skb->dst accessors 2009-06-03 02:51:04 -07:00
nf_nat_tftp.c [NETFILTER]: nf_{conntrack,nat}_tftp: annotate TFTP helper with const 2008-01-31 19:28:08 -08:00