Re: [PATCH ipsec 1/3] ipv6: wire up skb->encapsulation

Eric Dumazet
2013-08-17T19:02:54Z

On Sat, 2013-08-17 at 19:51 +0200, Hannes Frederic Sowa wrote:
> When pushing a new header before current one call skb_reset_inner_headers
> to record the position of the inner headers in the various ipv6 tunnel
> protocols.
>
> We later need this to correctly identify the addresses needed to send
> back an error in the xfrm layer.
>
> This change is safe, because skb->protocol is always checked before
> dereferencing data from the inner protocol.
>
> Cc: Steffen Klassert <steffen.klassert@secunet.com>
> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
> Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com>
> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
> ---

Acked-by: Eric Dumazet <edumazet@googl.com>