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Date:	Fri, 23 Nov 2007 14:39:33 +0100
From:	Lutz Jaenicke <>
To:	Laszlo Attila Toth <>
Cc:	David Miller <>,
	Patrick McHardy <>,,
Subject: Re: [PATCHv6 iptables]Interface group match

On Tue, Nov 20, 2007 at 02:14:28PM +0100, Laszlo Attila Toth wrote:
> Interface group values can be checked on both input and output interfaces
> with optional mask.

> Index: extensions/libxt_ifgroup.c
> ===================================================================
> --- extensions/libxt_ifgroup.c	(revision 0)
> +++ extensions/libxt_ifgroup.c	(revision 0)

> +		info->in_group = strtoul(optarg, &end, 0);

This is somewhat inconsistent with the iproute patch which targets
specific groups (with names).
Should iptables be allowed to read "/etc/iproute2/rt_ifgroup"?
There is no standard API like getservbyname()...

I do have a draft patch for physdev which is however against
iptables-1.3.8 and linux-2.6.19 so it will need some more work
but I will attach it for discussion.

(This will leave ebtables to be touched...)

Best regards,
Dr.-Ing. Lutz Jänicke
Innominate Security Technologies AG  /protecting industrial networks/
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View attachment "ifgroup_physdev.patch" of type "text/plain" (4806 bytes)

View attachment "ifgroup_physdev_kernel.patch" of type "text/plain" (2577 bytes)

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