netfilter: labels: don't emit ct event if labels were not changed

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make the replace function only send a ctnetlink event if the contents
of the new set is different.

Otherwise 'ct label set ct label | bar'

will cause netlink event storm since we "replace" labels for each packet.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

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Florian Westphal 2016-04-12 18:14:24 +02:00 • committed by Pablo Neira Ayuso

parent b4ef159927

commit 5a8145f7b2

1 changed files with 10 additions and 6 deletions

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net/netfilter/nf_conntrack_labels.c

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