Commit 97cf00e9 authored Dec 06, 2012 by Haibo Xi Committed by Pablo Neira Ayuso Dec 16, 2012

netfilter: nf_ct_reasm: fix conntrack reassembly expire code



Commit b836c99f (ipv6: unify conntrack reassembly expire
code with standard one) use the standard IPv6 reassembly
code(ip6_expire_frag_queue) to handle conntrack reassembly expire.

In ip6_expire_frag_queue, it invoke dev_get_by_index_rcu to get
which device received this expired packet.so we must save ifindex
when NF_conntrack get this packet.

With this patch applied, I can see ICMP Time Exceeded sent
from the receiver when the sender sent out 1/2 fragmented
IPv6 packet.

Signed-off-by: Haibo Xi <haibbo@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

parent d7a769ff

net/ipv6/netfilter/nf_conntrack_reasm.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -311,7 +311,10 @@ found:
		else
		fq->q.fragments = skb;

		if (skb->dev) {
		fq->iif = skb->dev->ifindex;
		skb->dev = NULL;
		}
		fq->q.stamp = skb->tstamp;
		fq->q.meat += skb->len;
		if (payload_len > fq->q.max_size)

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