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netfilter: nf_conntrack: fix event flooding in GRE protocol tracker

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GRE connections cause ctnetlink event flood because the ASSURED event
is set for every packet received.

Reported-by: Denys Fedoryshchenko <denys@visp.net.lb>
Tested-by: Denys Fedoryshchenko <denys@visp.net.lb>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal 2011-09-30 16:38:29 +02:00 committed by Pablo Neira Ayuso
parent b582ad8e96
commit 98d9ae841a
1 changed files with 2 additions and 2 deletions
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4
net/netfilter/nf_conntrack_proto_gre.c
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@ -241,8 +241,8 @@ static int gre_packet(struct nf_conn *ct,
nf_ct_refresh_acct(ct, ctinfo, skb,
ct->proto.gre.stream_timeout);
/* Also, more likely to be important, and not a probe. */
set_bit(IPS_ASSURED_BIT, &ct->status);
nf_conntrack_event_cache(IPCT_ASSURED, ct);
if (!test_and_set_bit(IPS_ASSURED_BIT, &ct->status))
nf_conntrack_event_cache(IPCT_ASSURED, ct);
} else
nf_ct_refresh_acct(ct, ctinfo, skb,
ct->proto.gre.timeout);