netdev - Re: [RFC] per-containers tcp buffer limitation

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Date:	Thu, 25 Aug 2011 20:45:02 +0200
From:	Daniel Wagner <wagi@...om.org>
To:	Stephen Hemminger <shemminger@...tta.com>
CC:	Chris Friesen <chris.friesen@...band.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Glauber Costa <glommer@...allels.com>,
	Linux Containers <containers@...ts.osdl.org>,
	netdev@...r.kernel.org, David Miller <davem@...emloft.net>,
	Pavel Emelyanov <xemul@...allels.com>
Subject: Re: [RFC] per-containers tcp buffer limitation

Hi Stephen,

> On 08/25/2011 05:44 PM, Stephen Hemminger wrote:
>> What about using netfilter (with extensions)? We already have iptables
>> module to match on uid or gid. It wouldn't be hard to extend this to
>> other bits of meta data like originating and target containers.
> 
> From reading the man pages the "owner" extension of netfilter would only
> allow to match on outgoing traffic. Would it be possible to extend this
> to also match on incoming traffic? Sorry to be completely ignorant here.

I just realized, that the "owner" extension is "only" matching on
UID/GID. For thing I would like to solve the match should be on PID.

IIRC the "owner" extension supported but this feature but it was removed [1]

thanks,
daniel

[1]
http://www.mail-archive.com/git-commits-head@vger.kernel.org/msg00486.html
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