vxlan: Fix TCPv6 segmentation.

This patch set correct skb->protocol so that inner packet can
lookup correct gso handler.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 6abbe64..0ae038a 100644 (file)
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -2311,8 +2311,10 @@ static struct sk_buff *skb_udp_tunnel_segment(struct sk_buff *skb,
        struct sk_buff *segs = ERR_PTR(-EINVAL);
        int mac_len = skb->mac_len;
        int tnl_hlen = skb_inner_mac_header(skb) - skb_transport_header(skb);
-       int outer_hlen;
+       struct ethhdr *inner_eth = (struct ethhdr *)skb_inner_mac_header(skb);
+       __be16 protocol = skb->protocol;
        netdev_features_t enc_features;
+       int outer_hlen;
 
        if (unlikely(!pskb_may_pull(skb, tnl_hlen)))
                goto out;
@@ -2322,6 +2324,8 @@ static struct sk_buff *skb_udp_tunnel_segment(struct sk_buff *skb,
        skb_reset_mac_header(skb);
        skb_set_network_header(skb, skb_inner_network_offset(skb));
        skb->mac_len = skb_inner_network_offset(skb);
+       inner_eth = (struct ethhdr *)skb_mac_header(skb);
+       skb->protocol = inner_eth->h_proto;
 
        /* segment inner packet. */
        enc_features = skb->dev->hw_enc_features & netif_skb_features(skb);
@@ -2358,6 +2362,7 @@ static struct sk_buff *skb_udp_tunnel_segment(struct sk_buff *skb,
 
                }
                skb->ip_summed = CHECKSUM_NONE;
+               skb->protocol = protocol;
        } while ((skb = skb->next));
 out:
        return segs;