netdev - Re: [IPV6]: Fix IPsec datagram fragmentation

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Message-Id: <20080212.180828.262893392.davem@davemloft.net>
Date:	Tue, 12 Feb 2008 18:08:28 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	herbert@...dor.apana.org.au
Cc:	yoshfuji@...ux-ipv6.org, netdev@...r.kernel.org,
	dlstevens@...ibm.com, kazunori@...azawa.org
Subject: Re: [IPV6]: Fix IPsec datagram fragmentation

From: Herbert Xu <herbert@...dor.apana.org.au>
Date: Wed, 13 Feb 2008 11:04:37 +1100

> [IPV6]: Fix IPsec datagram fragmentation
> 
> This is a long-standing bug in the IPsec IPv6 code that breaks
> when we emit a IPsec tunnel-mode datagram packet.  The problem
> is that the code the emits the packet assumes the IPv6 stack
> will fragment it later, but the IPv6 stack assumes that whoever
> is emitting the packet is going to pre-fragment the packet.
> 
> In the long term we need to fix both sides, e.g., to get the
> datagram code to pre-fragment as well as to get the IPv6 stack
> to fragment locally generated tunnel-mode packet.
> 
> For now this patch does the second part which should make it
> work for the IPsec host case.
> 
> Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>

Applied, and I'll queue this up to -stable as well.

Thanks!
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