From: Herbert Xu Date: Thu, 18 Oct 2007 04:28:06 +0000 (-0700) Subject: [IPSEC]: Fix pure tunnel modes involving IPv6 X-Git-Tag: firefly_0821_release~24910^2~20 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=04663d0b8b3c8ce3804106279420cfe5bdfcce3c;p=firefly-linux-kernel-4.4.55.git [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 Signed-off-by: David S. Miller --- 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)