netdev - Re: [PATCH v3] ipv6: fix incorrent ipv6 ipsec packet fragment

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Message-ID: <20120320085405.GG29891@secunet.com>
Date:	Tue, 20 Mar 2012 09:54:05 +0100
From:	Steffen Klassert <steffen.klassert@...unet.com>
To:	Gao feng <gaofeng@...fujitsu.com>
Cc:	davem@...emloft.net, netdev@...r.kernel.org
Subject: Re: [PATCH v3] ipv6: fix incorrent ipv6 ipsec packet fragment

On Tue, Mar 20, 2012 at 04:36:10PM +0800, Gao feng wrote:
> Since commit 299b0767(ipv6: Fix IPsec slowpath fragmentation problem)
> In func ip6_append_data,after call skb_put(skb, fraglen + dst_exthdrlen)
> the skb->len contains dst_exthdrlen,and we don't reduce dst_exthdrlen at last
> This will make fraggap>0 in next "while cycle",and cause the size of skb incorrent
> 
> Fix this by reserve headroom for dst_exthdrlen.
> 
> Signed-off-by: Gao feng <gaofeng@...fujitsu.com>

Acked-by: Steffen Klassert <steffen.klassert@...unet.com>

Thanks a lot!
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