[IPSEC]: Fix pure tunnel modes involving IPv6
I noticed that my recent patch broke 6-on-4 pure IPsec tunnels (the ones
that are only used for incompressible IPsec packets). Subsequent reviews
show that I broke 6-on-6 pure tunnels more than three years ago and nobody
ever noticed. I suppose every must be testing 6-on-6 IPComp with large
pings which are very compressible :)
This patch fixes both cases.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c
index 3f8a3ab..6c67ac1 100644
--- a/net/ipv6/xfrm6_tunnel.c
+++ b/net/ipv6/xfrm6_tunnel.c
@@ -248,7 +248,7 @@
static int xfrm6_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
{
- return 0;
+ return skb_network_header(skb)[IP6CB(skb)->nhoff];
}
static int xfrm6_tunnel_rcv(struct sk_buff *skb)