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From: David Miller <davem@davemloft.net>
To: steffen.klassert@secunet.com
Cc: herbert@gondor.hengli.com.au, netdev@vger.kernel.org
Subject: Re: [PATCH 1/2] ipv6: Fix IPsec slowpath fragmentation problem
Date: Tue, 18 Oct 2011 23:53:21 -0400 (EDT)	[thread overview]
Message-ID: <20111018.235321.652135405877211986.davem@davemloft.net> (raw)
In-Reply-To: <20111011114333.GI1830@secunet.com>

From: Steffen Klassert <steffen.klassert@secunet.com>
Date: Tue, 11 Oct 2011 13:43:33 +0200

> ip6_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:[~2011-10-19  3:53 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-10-11 11:42 [PATCH net-next 0/2] ipv6: IPsec pmtu/fragmentation fixes Steffen Klassert
2011-10-11 11:43 ` [PATCH 1/2] ipv6: Fix IPsec slowpath fragmentation problem Steffen Klassert
2011-10-19  3:53   ` David Miller [this message]
2011-10-11 11:44 ` [PATCH 2/2] xfrm6: Don't call icmpv6_send on local error Steffen Klassert
2011-10-19  3:53   ` David Miller

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