netdev - Re: [PATCH 4/8] af_unix: Allow SO_PEERCRED to work across namespaces.

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Date:	Mon, 14 Jun 2010 15:37:57 +0200
From:	Daniel Lezcano <daniel.lezcano@...e.fr>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
CC:	David Miller <davem@...emloft.net>,
	Serge Hallyn <serue@...ibm.com>,
	Linux Containers <containers@...ts.osdl.org>,
	netdev@...r.kernel.org, Pavel Emelyanov <xemul@...allels.com>
Subject: Re: [PATCH 4/8] af_unix: Allow SO_PEERCRED to work across namespaces.

On 06/13/2010 03:30 PM, Eric W. Biederman wrote:
> Use struct pid and struct cred to store the peer credentials on struct
> sock.  This gives enough information to convert the peer credential
> information to a value relative to whatever namespace the socket is in
> at the time.
>
> This removes nasty surprises when using SO_PEERCRED on socket
> connetions where the processes on either side are in different pid and
> user namespaces.
>
> Signed-off-by: Eric W. Biederman<ebiederm@...ssion.com>
>    

Acked-by: Daniel Lezcano <daniel.lezcano@...e.fr>

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