From: Eric W. Biederman <ebiederm@xmission.com>
Date: Sun, 13 Jun 2010 03:30:14 +0000 (+0000)
Subject: af_unix: Allow SO_PEERCRED to work across namespaces.
X-Git-Tag: v2.6.36-rc1~571^2~553
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=109f6e39fa07c48f580125f531f46cb7c245b528;p=pandora-kernel.git

af_unix: Allow SO_PEERCRED to work across namespaces.

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@xmission.com>
Acked-by: Daniel Lezcano <daniel.lezcano@free.fr>
Acked-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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