From: Patrick McHardy <kaber@trash.net>
To: Julian Anastasov <ja@ssi.bg>
Cc: Pablo Neira Ayuso <pablo@netfilter.org>,
netfilter-devel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH v2] netfilter: avoid double seq_adjust for loopback
Date: Thu, 16 Jun 2011 17:30:16 +0200 [thread overview]
Message-ID: <4DFA2188.5000505@trash.net> (raw)
In-Reply-To: <alpine.LFD.2.00.1106080926320.1457@ja.ssi.bg>
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@ssi.bg>
Applied, thanks Julian.
prev parent reply other threads:[~2011-06-16 15:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-08 6:31 [PATCH v2] netfilter: avoid double seq_adjust for loopback Julian Anastasov
2011-06-16 15:30 ` Patrick McHardy [this message]
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