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From: David Miller <davem@davemloft.net>
To: steffen.klassert@secunet.com
Cc: eric.dumazet@gmail.com, herbert@gondor.hengli.com.au,
	netdev@vger.kernel.org
Subject: Re: [PATCH 2/2] ipv4: Fix IPsec slowpath fragmentation problem
Date: Mon, 27 Jun 2011 20:39:54 -0700 (PDT)	[thread overview]
Message-ID: <20110627.203954.64191314708724007.davem@davemloft.net> (raw)
In-Reply-To: <20110622110537.GH6489@secunet.com>

From: Steffen Klassert <steffen.klassert@secunet.com>
Date: Wed, 22 Jun 2011 13:05:37 +0200

> ip_append_data() builds packets based on the mtu from dst_mtu(rt->dst.path).
> On IPsec the effective mtu is lower because we need to add the protocol
> headers and trailers later when we do the IPsec transformations. So after
> the IPsec transformations the packet might be too big, which leads to a
> slowpath fragmentation then. This patch fixes this by building the packets
> based on the lower IPsec mtu from dst_mtu(&rt->dst) and adapts the exthdr
> handling to this.
> 
> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

Applied.

  reply	other threads:[~2011-06-28  3:40 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-06-22 11:04 [PATCH v2 1/2] ipv4: Fix packet size calculation in __ip_append_data Steffen Klassert
2011-06-22 11:05 ` [PATCH 2/2] ipv4: Fix IPsec slowpath fragmentation problem Steffen Klassert
2011-06-28  3:39   ` David Miller [this message]
2011-06-28  3:39 ` [PATCH v2 1/2] ipv4: Fix packet size calculation in __ip_append_data David Miller

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