[Bug 1087] Window Tracking not disabled

bugzilla-daemon at netfilter.org bugzilla-daemon at netfilter.org
Tue Oct 18 12:55:59 CEST 2016


https://bugzilla.netfilter.org/show_bug.cgi?id=1087

--- Comment #9 from Arturo Borrero Gonzalez <arturo at debian.org> ---
One more question.

In this line
http://lxr.free-electrons.com/source/net/netfilter/nf_conntrack_proto_tcp.c?v=4.1#L935

the code calls tcp_options() which parses the TCP header to fill our conntrack
entry (the 'seen' one).

In that function we don't put IP_CT_TCP_FLAG_BE_LIBERAL into flags, so a later
check if (seen.flags & IP_CT_TCP_FLAG_BE_LIBERAL) should always fail.

It seems I'm missing something.

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