From: Cong Wang Date: Fri, 22 Mar 2013 00:31:32 +0000 (+0000) Subject: udp: increase inner ip header ID during segmentation X-Git-Tag: MMI-PSA29.97-13-9~14469^2~375 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d6a8c36dd6f6f06f046e5c61d3fb39b777c3bdc6;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git 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 Cc: Eric Dumazet Cc: "David S. Miller" Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- 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);