netdev - Re: [PATCH v2] netfilter: avoid double seq

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Message-ID: <4DFA2188.5000505@trash.net>
Date:	Thu, 16 Jun 2011 17:30:16 +0200
From:	Patrick McHardy <kaber@...sh.net>
To:	Julian Anastasov <ja@....bg>
CC:	Pablo Neira Ayuso <pablo@...filter.org>,
	netfilter-devel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH v2] netfilter: avoid double seq_adjust for loopback

On 08.06.2011 08:31, Julian Anastasov wrote:
> 	Avoid double seq adjustment for loopback traffic
> because it causes silent repetition of TCP data. One
> example is passive FTP with DNAT rule and difference in the
> length of IP addresses.
> 
> 	This patch adds check if packet is sent and
> received via loopback device. As the same conntrack is
> used both for outgoing and incoming direction, we restrict
> seq adjustment to happen only in POSTROUTING.
> 
> Signed-off-by: Julian Anastasov <ja@....bg>

Applied, thanks Julian.
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