ip6_output.c (72e843bb09d4533208aa5573861a983c46914019) ip6_output.c (a34a101e1e6365638b02ea83a38d7a4cb228dc04)
1/*
2 * IPv6 output functions
3 * Linux INET6 implementation
4 *
5 * Authors:
6 * Pedro Roque <roque@di.fc.ul.pt>
7 *
8 * Based on linux/net/ipv4/ip_output.c

--- 629 unchanged lines hidden (view full) ---

638 hlen = ip6_find_1stfragopt(skb, &prevhdr);
639 nexthdr = *prevhdr;
640
641 mtu = ip6_skb_dst_mtu(skb);
642
643 /* We must not fragment if the socket is set to force MTU discovery
644 * or if the skb it not generated by a local socket.
645 */
1/*
2 * IPv6 output functions
3 * Linux INET6 implementation
4 *
5 * Authors:
6 * Pedro Roque <roque@di.fc.ul.pt>
7 *
8 * Based on linux/net/ipv4/ip_output.c

--- 629 unchanged lines hidden (view full) ---

638 hlen = ip6_find_1stfragopt(skb, &prevhdr);
639 nexthdr = *prevhdr;
640
641 mtu = ip6_skb_dst_mtu(skb);
642
643 /* We must not fragment if the socket is set to force MTU discovery
644 * or if the skb it not generated by a local socket.
645 */
646 if (!skb->local_df && skb->len > mtu) {
646 if (unlikely(!skb->local_df && skb->len > mtu)) {
647 if (skb->sk && dst_allfrag(skb_dst(skb)))
648 sk_nocaps_add(skb->sk, NETIF_F_GSO_MASK);
649
647 skb->dev = skb_dst(skb)->dev;
648 icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
649 IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
650 IPSTATS_MIB_FRAGFAILS);
651 kfree_skb(skb);
652 return -EMSGSIZE;
653 }
654

--- 1004 unchanged lines hidden --- 		650 skb->dev = skb_dst(skb)->dev;
651 icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
652 IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
653 IPSTATS_MIB_FRAGFAILS);
654 kfree_skb(skb);
655 return -EMSGSIZE;
656 }
657

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