diff options
Diffstat (limited to 'net/ipv4/af_inet.c')
| -rw-r--r-- | net/ipv4/af_inet.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index ce4aa827be05..f00499a46927 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -1223,9 +1223,10 @@ EXPORT_SYMBOL(inet_sk_rebuild_header); struct sk_buff *inet_gso_segment(struct sk_buff *skb, netdev_features_t features) { - bool fixedid = false, gso_partial, encap; + bool udpfrag = false, fixedid = false, gso_partial, encap; struct sk_buff *segs = ERR_PTR(-EINVAL); const struct net_offload *ops; + unsigned int offset = 0; struct iphdr *iph; int proto, tot_len; int nhoff; @@ -1260,6 +1261,7 @@ struct sk_buff *inet_gso_segment(struct sk_buff *skb, segs = ERR_PTR(-EPROTONOSUPPORT); if (!skb->encapsulation || encap) { + udpfrag = !!(skb_shinfo(skb)->gso_type & SKB_GSO_UDP); fixedid = !!(skb_shinfo(skb)->gso_type & SKB_GSO_TCP_FIXEDID); /* fixed ID is invalid if DF bit is not set */ @@ -1279,7 +1281,13 @@ struct sk_buff *inet_gso_segment(struct sk_buff *skb, skb = segs; do { iph = (struct iphdr *)(skb_mac_header(skb) + nhoff); - if (skb_is_gso(skb)) { + if (udpfrag) { + iph->frag_off = htons(offset >> 3); + if (skb->next) + iph->frag_off |= htons(IP_MF); + offset += skb->len - nhoff - ihl; + tot_len = skb->len - nhoff; + } else if (skb_is_gso(skb)) { if (!fixedid) { iph->id = htons(id); id += skb_shinfo(skb)->gso_segs; |