From: Joubert Berger <joubertb@gmail.com>
To: Patrick McHardy <kaber@trash.net>
Cc: Netfilter Development Mailinglist <netfilter-devel@lists.netfilter.org>
Subject: Re: [NETFILTER]: Ignore PSH on SYN/ACK in TCP connection tracking
Date: Tue, 26 Apr 2005 11:15:47 -0400 [thread overview]
Message-ID: <63d3731e050426081525b26dad@mail.gmail.com> (raw)
In-Reply-To: <426C127B.9030108@trash.net>
Will there be a 2.4 patch for this?
--joubert
On 4/24/05, Patrick McHardy <kaber@trash.net> wrote:
> This patch fixes a problem with TCP connection tracking and
> some devices that respond with SYN/ACK/PSH to a SYN packet.
> TCP connection tracking considers these packets to be invalid
> and the connection never reaches an estabished state. Ignore
> PSH on SYN/ACKs.
>
>
> [NETFILTER]: Ignore PSH on SYN/ACK in TCP connection tracking
>
> Signed-off-by: Patrick McHardy <kaber@trash.net>
>
> ---
> commit 72fbbd2b143c27c9c3793698c04302d066d9e4bc
> tree 790636ed7460d6ca2b20cfd98df33a381fe2f0db
> parent df6c6804ce1d383c878ab071bce8125125d96abc
> author NIIBE Yutaka <gniibe@fsij.org> 1114303196 +0200
> committer Patrick McHardy <kaber@trash.net> 1114303196 +0200
>
> Index: net/ipv4/netfilter/ip_conntrack_proto_tcp.c
> ===================================================================
> --- 43765d4b40a4a3c64f2a32b684f4041e2f01644d/net/ipv4/netfilter/ip_conntrack_proto_tcp.c (mode:100644 sha1:e800b16fc9209dd5a26e65d2be4eb83d77a7d7af)
> +++ 790636ed7460d6ca2b20cfd98df33a381fe2f0db/net/ipv4/netfilter/ip_conntrack_proto_tcp.c (mode:100644 sha1:2b87c1974be605d5bdb1ee769188d7e03fb2ddc8)
> @@ -770,6 +770,7 @@
> {
> [TH_SYN] = 1,
> [TH_SYN|TH_ACK] = 1,
> + [TH_SYN|TH_ACK|TH_PUSH] = 1,
> [TH_RST] = 1,
> [TH_RST|TH_ACK] = 1,
> [TH_RST|TH_ACK|TH_PUSH] = 1,
>
>
>
next prev parent reply other threads:[~2005-04-26 15:15 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-24 21:41 [NETFILTER]: Ignore PSH on SYN/ACK in TCP connection tracking Patrick McHardy
2005-04-25 1:43 ` David S. Miller
2005-04-26 15:15 ` Joubert Berger [this message]
2005-04-26 15:22 ` Patrick McHardy
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