1 files changed, 13 insertions, 9 deletions

diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index 19ef329bdbf8..b930d080c66f 100644
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -114,12 +114,6 @@ int xfrm6_prepare_output(struct xfrm_state *x, struct sk_buff *skb)
         if (err)
                 return err;
 
-        memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
-#ifdef CONFIG_NETFILTER
-        IP6CB(skb)->flags |= IP6SKB_XFRM_TRANSFORMED;
-#endif
-
-        skb->protocol = htons(ETH_P_IPV6);
         skb->local_df = 1;
 
         return x->outer_mode->output2(x, skb);
@@ -128,11 +122,13 @@ EXPORT_SYMBOL(xfrm6_prepare_output);
 
 int xfrm6_output_finish(struct sk_buff *skb)
 {
+        memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
+        skb->protocol = htons(ETH_P_IPV6);
+
 #ifdef CONFIG_NETFILTER
         IP6CB(skb)->flags |= IP6SKB_XFRM_TRANSFORMED;
 #endif
 
-        skb->protocol = htons(ETH_P_IPV6);
         return xfrm_output(skb);
 }
 
@@ -142,6 +138,13 @@ static int __xfrm6_output(struct sk_buff *skb)
         struct xfrm_state *x = dst->xfrm;
         int mtu;
 
+#ifdef CONFIG_NETFILTER
+        if (!x) {
+                IP6CB(skb)->flags |= IP6SKB_REROUTED;
+                return dst_output(skb);
+        }
+#endif
+
         if (skb->protocol == htons(ETH_P_IPV6))
                 mtu = ip6_skb_dst_mtu(skb);
         else
@@ -165,6 +168,7 @@ static int __xfrm6_output(struct sk_buff *skb)
 
 int xfrm6_output(struct sock *sk, struct sk_buff *skb)
 {
-        return NF_HOOK(NFPROTO_IPV6, NF_INET_POST_ROUTING, skb, NULL,
-                       skb_dst(skb)->dev, __xfrm6_output);
+        return NF_HOOK_COND(NFPROTO_IPV6, NF_INET_POST_ROUTING, skb,
+                            NULL, skb_dst(skb)->dev, __xfrm6_output,
+                            !(IP6CB(skb)->flags & IP6SKB_REROUTED));
 }