linux-kernel - Re: [PATCH 15/21] net sched: Pass the skb into change so it can access NETLINK

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Message-ID: <1345018314.20443.4.camel@mojatatu>
Date:	Wed, 15 Aug 2012 04:11:54 -0400
From:	Jamal Hadi Salim <jhs@...atatu.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	containers@...ts.linux-foundation.org,
	David Miller <davem@...emloft.net>,
	Serge Hallyn <serge@...lyn.com>
Subject: Re: [PATCH 15/21] net sched: Pass the skb into change so it can
 access NETLINK_CB

On Mon, 2012-08-13 at 13:18 -0700, Eric W. Biederman wrote:
> From: "Eric W. Biederman" <ebiederm@...ssion.com>
> 
> cls_flow.c plays with uids and gids.  Unless I misread that
> code it is possible for classifiers to depend on the specific uid and
> gid values.  Therefore I need to know the user namespace of the
> netlink socket that is installing the packet classifiers.  Pass
> in the rtnetlink skb so I can access the NETLINK_CB of the passed
> packet.  In particular I want access to sk_user_ns(NETLINK_CB(in_skb).ssk).
> 
> Pass in not the user namespace but the incomming rtnetlink skb into
> the the classifier change routines as that is generally the more useful
> parameter.
> 
> Cc: Jamal Hadi Salim <jhs@...atatu.com>
> Acked-by: Serge Hallyn <serge.hallyn@...onical.com>
> Signed-off-by: Eric W. Biederman <ebiederm@...ssion.com>


Acked-by: Jamal Hadi Salim <jhs@...atatu.com>

cheers,
jamal

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