netdev - Re: [PATCH] iptables: new strict host model match

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Message-ID: <20090227181009.5b53f4c8@nehalam>
Date:	Fri, 27 Feb 2009 18:10:09 -0800
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Jan Engelhardt <jengelh@...ozas.de>
Cc:	Patrick McHardy <kaber@...sh.net>,
	David Miller <davem@...emloft.net>,
	netfilter-devel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH] iptables: new strict host model match

On Sat, 28 Feb 2009 02:53:10 +0100 (CET)
Jan Engelhardt <jengelh@...ozas.de> wrote:

> 
> On Friday 2009-02-27 04:23, Stephen Hemminger wrote:
> >> >+static struct xt_match strict_mt_reg __read_mostly = {
> >> >+	.name		= "strict",
> >> >+	.family		= NFPROTO_IPV4,
> >> >+	.match		= strict_mt,
> >> >+	.matchsize	= 0,
> >> >+	.me		= THIS_MODULE,
> >> >+};
> >> 
> >> The match seems to make the most sense where an input device
> >> is available, so
> >> 
> >> 	.hooks = (1 << NF_INET_PRE_ROUTING) | (1 << NF_INET_LOCAL_IN) |
> >> 	         (1 << NF_INET_FORWARD)
> >> 
> >> should probably be added.
> >
> >Then routing wouldn't work...
> 
I suppose it could be useful to to different chains for routed vs non-routed
packets on pre-routing chain, but on forward chain it wouldn't really
do anything useful.
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