Subject: Re: [PATCH] iptables: new strict host model match

From: Stephen Hemminger <[email-masked]>
Date: Fri, 27 Feb 2009 18:10:09 -0800

On Sat, 28 Feb 2009 02:53:10 +0100 (CET)
Jan Engelhardt <[email-masked]> 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.