diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/inet_fragment.c | 2 | ||||
| -rw-r--r-- | net/ipv4/ip_fragment.c | 14 | ||||
| -rw-r--r-- | net/ipv6/reassembly.c | 15 |
3 files changed, 15 insertions, 16 deletions
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c index fa49916c23a0..4baa76c60398 100644 --- a/net/ipv4/inet_fragment.c +++ b/net/ipv4/inet_fragment.c @@ -151,8 +151,6 @@ evict_again: goto evict_again; } - /* suppress xmit of (icmp) error packet */ - fq->flags &= ~INET_FRAG_FIRST_IN; fq->flags |= INET_FRAG_EVICTED; hlist_del(&fq->list); hlist_add_head(&fq->list, &expired); diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c index 6fce1ecc5bca..cb56bcc1eee2 100644 --- a/net/ipv4/ip_fragment.c +++ b/net/ipv4/ip_fragment.c @@ -189,16 +189,18 @@ static void ip_expire(unsigned long arg) goto out; ipq_kill(qp); - - if (!(qp->q.flags & INET_FRAG_EVICTED)) - IP_INC_STATS_BH(net, IPSTATS_MIB_REASMTIMEOUT); IP_INC_STATS_BH(net, IPSTATS_MIB_REASMFAILS); - if ((qp->q.flags & INET_FRAG_FIRST_IN) && qp->q.fragments != NULL) { + if (!(qp->q.flags & INET_FRAG_EVICTED)) { struct sk_buff *head = qp->q.fragments; const struct iphdr *iph; int err; + IP_INC_STATS_BH(net, IPSTATS_MIB_REASMTIMEOUT); + + if (!(qp->q.flags & INET_FRAG_FIRST_IN) || !qp->q.fragments) + goto out; + rcu_read_lock(); head->dev = dev_get_by_index_rcu(net, qp->iif); if (!head->dev) @@ -211,8 +213,7 @@ static void ip_expire(unsigned long arg) if (err) goto out_rcu_unlock; - /* - * Only an end host needs to send an ICMP + /* Only an end host needs to send an ICMP * "Fragment Reassembly Timeout" message, per RFC792. */ if (qp->user == IP_DEFRAG_AF_PACKET || @@ -221,7 +222,6 @@ static void ip_expire(unsigned long arg) (skb_rtable(head)->rt_type != RTN_LOCAL))) goto out_rcu_unlock; - /* Send an ICMP "Fragment Reassembly Timeout" message. */ icmp_send(head, ICMP_TIME_EXCEEDED, ICMP_EXC_FRAGTIME, 0); out_rcu_unlock: diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c index b4baceed0d0d..beb6872a8fa5 100644 --- a/net/ipv6/reassembly.c +++ b/net/ipv6/reassembly.c @@ -141,19 +141,20 @@ void ip6_expire_frag_queue(struct net *net, struct frag_queue *fq, if (!dev) goto out_rcu_unlock; - if (!(fq->q.flags & INET_FRAG_EVICTED)) - IP6_INC_STATS_BH(net, __in6_dev_get(dev), - IPSTATS_MIB_REASMTIMEOUT); IP6_INC_STATS_BH(net, __in6_dev_get(dev), IPSTATS_MIB_REASMFAILS); + if (fq->q.flags & INET_FRAG_EVICTED) + goto out_rcu_unlock; + + IP6_INC_STATS_BH(net, __in6_dev_get(dev), IPSTATS_MIB_REASMTIMEOUT); + /* Don't send error if the first segment did not arrive. */ if (!(fq->q.flags & INET_FRAG_FIRST_IN) || !fq->q.fragments) goto out_rcu_unlock; - /* - But use as source device on which LAST ARRIVED - segment was received. And do not use fq->dev - pointer directly, device might already disappeared. + /* But use as source device on which LAST ARRIVED + * segment was received. And do not use fq->dev + * pointer directly, device might already disappeared. */ fq->q.fragments->dev = dev; icmpv6_send(fq->q.fragments, ICMPV6_TIME_EXCEED, ICMPV6_EXC_FRAGTIME, 0); |