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| author | Cong Wang <amwang@redhat.com> | 2013-03-22 00:31:32 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-03-22 10:23:34 -0400 |
| commit | d6a8c36dd6f6f06f046e5c61d3fb39b777c3bdc6 (patch) | |
| tree | 29ae533ed164da23912125dd0be28df5dda6c051 /net/ipv4/udp.c | |
| parent | 10c0d7ed32b7c273970a20e211c08ab46fea3c26 (diff) | |
| download | linux-d6a8c36dd6f6f06f046e5c61d3fb39b777c3bdc6.tar.gz linux-d6a8c36dd6f6f06f046e5c61d3fb39b777c3bdc6.tar.bz2 linux-d6a8c36dd6f6f06f046e5c61d3fb39b777c3bdc6.zip | |
udp: increase inner ip header ID during segmentation
Similar to GRE tunnel, UDP tunnel should take care of IP header ID
too.
Cc: Pravin B Shelar <pshelar@nicira.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/udp.c')
| -rw-r--r-- | net/ipv4/udp.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 7117d1467b02..3c362eee3f2d 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -2304,7 +2304,8 @@ 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; + int outer_hlen, id; + struct iphdr *iph; netdev_features_t enc_features; if (unlikely(!pskb_may_pull(skb, tnl_hlen))) @@ -2315,6 +2316,8 @@ 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); + iph = ip_hdr(skb); + id = ntohs(iph->id); /* segment inner packet. */ enc_features = skb->dev->hw_enc_features & netif_skb_features(skb); @@ -2329,6 +2332,8 @@ static struct sk_buff *skb_udp_tunnel_segment(struct sk_buff *skb, int udp_offset = outer_hlen - tnl_hlen; skb->mac_len = mac_len; + iph = (struct iphdr *)skb_inner_network_header(skb); + iph->id = htons(id++); skb_push(skb, outer_hlen); skb_reset_mac_header(skb); |