diff options
| -rw-r--r-- | net/ipv6/udp.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index ac4e7e03dded..0711f8fe4d44 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -548,6 +548,7 @@ void __udp6_lib_err(struct sk_buff *skb, struct inet6_skb_parm *opt, const struct in6_addr *daddr = &hdr->daddr; struct udphdr *uh = (struct udphdr *)(skb->data+offset); struct sock *sk; + int harderr; int err; struct net *net = dev_net(skb->dev); @@ -559,26 +560,27 @@ void __udp6_lib_err(struct sk_buff *skb, struct inet6_skb_parm *opt, return; } + harderr = icmpv6_err_convert(type, code, &err); + np = inet6_sk(sk); + if (type == ICMPV6_PKT_TOOBIG) { if (!ip6_sk_accept_pmtu(sk)) goto out; ip6_sk_update_pmtu(skb, sk, info); + if (np->pmtudisc != IPV6_PMTUDISC_DONT) + harderr = 1; } if (type == NDISC_REDIRECT) { ip6_sk_redirect(skb, sk); goto out; } - np = inet6_sk(sk); - - if (!icmpv6_err_convert(type, code, &err) && !np->recverr) - goto out; - - if (sk->sk_state != TCP_ESTABLISHED && !np->recverr) - goto out; - - if (np->recverr) + if (!np->recverr) { + if (!harderr || sk->sk_state != TCP_ESTABLISHED) + goto out; + } else { ipv6_icmp_error(sk, skb, err, uh->dest, ntohl(info), (u8 *)(uh+1)); + } sk->sk_err = err; sk->sk_error_report(sk); |