netdev - Re: xt_recent broken in kernel 3.19.0 + PATCH

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Message-ID: <20150212111115.63d5ee43@bother.homenet>
Date:	Thu, 12 Feb 2015 11:11:15 +0000
From:	Chris Vine <chris@...ne.freeserve.co.uk>
To:	Florian Westphal <fw@...len.de>
Cc:	Cong Wang <xiyou.wangcong@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	netfilter-devel@...r.kernel.org,
	Linux Kernel Network Developers <netdev@...r.kernel.org>
Subject: Re: xt_recent broken in kernel 3.19.0 + PATCH

On Thu, 12 Feb 2015 10:54:17 +0000
Chris Vine <chris@...ne.freeserve.co.uk> wrote:
[snip]
> On further testing I see that that patch only solves the problem if
> SSH_TRIES is set to a power of two boundary.  You still get an error
> loading the rule if it is anything else.  I think there is something
> wrong with the nstamp_mask heuristic which is used here.

I now find that that is not right either.  I had to rmmod xt_recent to
get it to drop its previous setting.  With that done, the patch does
indeed seem to work for all values of SSH_TRIES.

Chris
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