From 04663d0b8b3c8ce3804106279420cfe5bdfcce3c Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Wed, 17 Oct 2007 21:28:06 -0700
Subject: [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>
---
 net/ipv4/xfrm4_tunnel.c | 2 +-
 net/ipv6/xfrm6_tunnel.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'net')

diff --git a/net/ipv4/xfrm4_tunnel.c b/net/ipv4/xfrm4_tunnel.c
index 1312417608e2..83e9580feac4 100644
--- a/net/ipv4/xfrm4_tunnel.c
+++ b/net/ipv4/xfrm4_tunnel.c
@@ -18,7 +18,7 @@ static int ipip_output(struct xfrm_state *x, struct sk_buff *skb)
 
 static int ipip_xfrm_rcv(struct xfrm_state *x, struct sk_buff *skb)
 {
-	return IPPROTO_IP;
+	return ip_hdr(skb)->protocol;
 }
 
 static int ipip_init_state(struct xfrm_state *x)
diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c
index 3f8a3abde67e..6c67ac197ee0 100644
--- a/net/ipv6/xfrm6_tunnel.c
+++ b/net/ipv6/xfrm6_tunnel.c
@@ -248,7 +248,7 @@ static int xfrm6_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
 
 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)
-- 
cgit v1.2.3-58-ga151