linux-kernel - Re: [PATCHSET v2] netfilter, cgroup: implement xt

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Message-ID: <20151120195739.GA1251@salvia>
Date:	Fri, 20 Nov 2015 20:57:39 +0100
From:	Pablo Neira Ayuso <pablo@...filter.org>
To:	David Miller <davem@...emloft.net>
Cc:	tj@...nel.org, kaber@...sh.net, kadlec@...ckhole.kfki.hu,
	lizefan@...wei.com, hannes@...xchg.org, netdev@...r.kernel.org,
	netfilter-devel@...r.kernel.org, coreteam@...filter.org,
	cgroups@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel-team@...com, daniel@...earbox.net,
	daniel.wagner@...-carit.de, nhorman@...driver.com
Subject: Re: [PATCHSET v2] netfilter, cgroup: implement xt_cgroup2 match

On Fri, Nov 20, 2015 at 08:56:25PM +0100, Pablo Neira Ayuso wrote:
> Regarding #7, I have a couple two concerns:
> 
> 1) cgroup currently doesn't work the way users expect, ie. to perform any
>    reasonable firewalling. Since this relies on early demux, only a
>    limited number of sockets get access to the cgroup info.

Ops sorry, I forgot to indicate that I'm refering to the INPUT chain.

> 2) We have traditionally rejected match2 and target2 extensions. I
>    guess you can accomodate the new cgroup code through the revision
>    iptables infrastructure, so we still use the cgroup match.
> 
> Let me know, thanks.
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