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netfilter 00/07: SIP TCP & T.38 support

From:  Patrick McHardy <>
Subject:  netfilter 00/07: SIP TCP & T.38 support
Date:  Wed, 20 Jan 2010 20:18:26 +0100 (MET)
Cc:, Patrick McHardy <>,
Archive-link:  Article, Thread

The attached patches add TCP and T.38 FAX support to the SIP conntrack helper.

The patches are still work-in-progress, but they already work fine in all
my tests and I know some people have been waiting for these features, so
here's a snapshot of my current tree for anyone interested in testing.

They're based on the nf-next-2.6.git tree, but they also apply to the 2.6.32
release (might not compile though :).

Please report any test results.

 include/linux/netfilter/nf_conntrack_sip.h  |   19 ++-
 include/net/netfilter/nf_conntrack.h        |    2 +-
 include/net/netfilter/nf_conntrack_expect.h |    1 +
 include/net/netfilter/nf_nat_helper.h       |   32 ++-
 net/ipv4/netfilter/nf_nat_helper.c          |   39 ++--
 net/ipv4/netfilter/nf_nat_sip.c             |  158 ++++++++-----
 net/netfilter/nf_conntrack_expect.c         |    9 +
 net/netfilter/nf_conntrack_sip.c            |  333 +++++++++++++++++++++------
 8 files changed, 435 insertions(+), 158 deletions(-)

Patrick McHardy (7):
      netfilter: nf_conntrack: show helper and class in /proc/net/nf_conntrack_expect
      netfilter: nf_conntrack_sip: fix ct_sip_parse_request() REGISTER request parsing
      netfilter: nf_conntrack_sip: pass data offset to NAT functions
      netfilter: nf_conntrack_sip: add TCP support
      netfilter: nf_nat: support mangling a single TCP packet multiple times
      netfilter: nf_nat_sip: add TCP support
      netfilter: nf_conntrack_sip: add T.38 FAX support
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