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Florian Westphal authored
given: -A INPUT -m recent --update --seconds 30 --hitcount 4 and iptables-save > foo then iptables-restore < foo will fail with: kernel: xt_recent: hitcount (4) is larger than packets to be remembered (4) for table DEFAULT Even when the check is fixed, the restore won't work if the hitcount is increased to e.g. 6, since by the time checkentry runs it will find the 'old' incarnation of the table. We can avoid this by increasing the maximum threshold silently; we only have to rm all the current entries of the table (these entries would not have enough room to handle the increased hitcount). This even makes (not-very-useful) -A INPUT -m recent --update --seconds 30 --hitcount 4 -A INPUT -m recent --update --seconds 30 --hitcount 42 work. Fixes: abc86d0f (netfilter: xt_recent: relax ip_pkt_list_tot restrictions) Tracked-down-by:
Chris Vine <chris@cvine.freeserve.co.uk> Signed-off-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org>
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