[IPSEC]: Handle GSO packets
[linux-2.6.git] / net / ipv6 / xfrm6_output.c
index 16e8425..48fccb1 100644 (file)
@@ -94,7 +94,7 @@ error_nolock:
        goto out_exit;
 }
 
-static int xfrm6_output_finish(struct sk_buff *skb)
+static int xfrm6_output_finish2(struct sk_buff *skb)
 {
        int err;
 
@@ -110,7 +110,7 @@ static int xfrm6_output_finish(struct sk_buff *skb)
                        return dst_output(skb);
 
                err = nf_hook(PF_INET6, NF_IP6_POST_ROUTING, &skb, NULL,
-                             skb->dst->dev, xfrm6_output_finish);
+                             skb->dst->dev, xfrm6_output_finish2);
                if (unlikely(err != 1))
                        break;
        }
@@ -118,6 +118,41 @@ static int xfrm6_output_finish(struct sk_buff *skb)
        return err;
 }
 
+static int xfrm6_output_finish(struct sk_buff *skb)
+{
+       struct sk_buff *segs;
+
+       if (!skb_shinfo(skb)->gso_size)
+               return xfrm6_output_finish2(skb);
+
+       skb->protocol = htons(ETH_P_IP);
+       segs = skb_gso_segment(skb, 0);
+       kfree_skb(skb);
+       if (unlikely(IS_ERR(segs)))
+               return PTR_ERR(segs);
+
+       do {
+               struct sk_buff *nskb = segs->next;
+               int err;
+
+               segs->next = NULL;
+               err = xfrm6_output_finish2(segs);
+
+               if (unlikely(err)) {
+                       while ((segs = nskb)) {
+                               nskb = segs->next;
+                               segs->next = NULL;
+                               kfree_skb(segs);
+                       }
+                       return err;
+               }
+
+               segs = nskb;
+       } while (segs);
+
+       return 0;
+}
+
 int xfrm6_output(struct sk_buff *skb)
 {
        return NF_HOOK(PF_INET6, NF_IP6_POST_ROUTING, skb, NULL, skb->dst->dev,