linux-kernel - Re: [PATCH] xt_request_find

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Message-ID: <Pine.LNX.4.61.0612201009540.26276@yvahk01.tjqt.qr>
Date:	Wed, 20 Dec 2006 10:11:25 +0100 (MET)
From:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
To:	Patrick McHardy <kaber@...sh.net>
cc:	Netfilter Developer Mailing List 
	<netfilter-devel@...ts.netfilter.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] xt_request_find_match


>Jan Engelhardt wrote:
>> [...]
>>
>> Ok, but let's say I wanted to use a bigger match module (layer7, anyone?)
>> Then it's just not if(protocol == IPPROTO_TCP). What's the preferred solution
>> then?
>
>Make sure the user specifies the match on the command line before
>your match. Look at the TCPMSS or REJECT targets for examples for
>this.

That would mean I'd have to

  -p tcp -m multiport --dport 1,2,3,4 -m time --time sundays -m 
lotsofothers -j TARGET
  -p udp -m multiport --dport 1,2,3,4 -m time --time sundays -m 
lotsofothers -j TARGET

which can become quite computationally expensive - which I wanted to 
avoid.


	-`J'
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