From 70be6c91c86596ad2b60c73587880b47df170a41 Mon Sep 17 00:00:00 2001
From: Steffen Klassert <steffen.klassert@secunet.com>
Date: Fri, 21 Feb 2014 08:41:09 +0100
Subject: [PATCH] xfrm: Add xfrm_tunnel_skb_cb to the skb common buffer

IPsec vti_rcv needs to remind the tunnel pointer to
check it later at the vti_rcv_cb callback. So add
this pointer to the IPsec common buffer, initialize
it and check it to avoid transport state matching of
a tunneled packet.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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