diff options
Diffstat (limited to 'net/ipv4/af_inet.c')
| -rw-r--r-- | net/ipv4/af_inet.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 566ea6c4321d..197d024b2536 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -1187,6 +1187,7 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb, int features) int proto; int ihl; int id; + unsigned int offset = 0; if (!(features & NETIF_F_V4_CSUM)) features &= ~NETIF_F_SG; @@ -1229,7 +1230,14 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb, int features) skb = segs; do { iph = ip_hdr(skb); - iph->id = htons(id++); + if (proto == IPPROTO_UDP) { + iph->id = htons(id); + iph->frag_off = htons(offset >> 3); + if (skb->next != NULL) + iph->frag_off |= htons(IP_MF); + offset += (skb->len - skb->mac_len - iph->ihl * 4); + } else + iph->id = htons(id++); iph->tot_len = htons(skb->len - skb->mac_len); iph->check = 0; iph->check = ip_fast_csum(skb_network_header(skb), iph->ihl); @@ -1425,6 +1433,8 @@ static struct net_protocol tcp_protocol = { static struct net_protocol udp_protocol = { .handler = udp_rcv, .err_handler = udp_err, + .gso_send_check = udp4_ufo_send_check, + .gso_segment = udp4_ufo_fragment, .no_policy = 1, .netns_ok = 1, }; |