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Message-ID: <20090213124946.GB23879@ioremap.net>
Date: Fri, 13 Feb 2009 15:49:46 +0300
From: Evgeniy Polyakov <zbr@...emap.net>
To: Patrick McHardy <kaber@...sh.net>
Cc: netdev@...r.kernel.org, David Miller <davem@...emloft.net>,
"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
Netfilter Development Mailinglist
<netfilter-devel@...r.kernel.org>
Subject: Re: Passive OS fingerprint xtables match.
Hi Patrick.
On Mon, Feb 09, 2009 at 05:09:21PM +0100, Patrick McHardy (kaber@...sh.net) wrote:
> Sorry for ignoring this for so long. I really don't have much of an
> opinion on this except for what I said before:
>
> - I would prefer a mechanism built on u32 if possible
u32 actually can not be used here, since it is not possible to implement
a state machine to match different wildcards for MSS for example. Like
modulus operation.
--
Evgeniy Polyakov
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