linux-kernel - Re: [PATCH] ACL supports to mqueue

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Message-ID: <alpine.LRH.2.00.1110271718510.5714@tundra.namei.org>
Date:	Thu, 27 Oct 2011 17:20:20 +1100 (EST)
From:	James Morris <jmorris@...ei.org>
To:	Zhou Peng <ailvpeng25@...il.com>
cc:	Casey Schaufler <casey@...aufler-ca.com>,
	Christoph Hellwig <hch@...radead.org>,
	linux-security-module@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	security@...nel.org
Subject: Re: [PATCH] ACL supports to mqueue

On Tue, 25 Oct 2011, Zhou Peng wrote:

> Hi, how about this patch pls?

I'm not convinced that this is a necessary feature for the mainline 
kernel.

> 
> On Fri, Oct 21, 2011 at 6:46 PM, Zhou Peng <ailvpeng25@...il.com> wrote:
> > * In general, it can give a more fine grained and flexible DAC to msg queue obj.
> > * NFSARK(A distro) wants all posix ipc objects to support ACL, including mqueue.
> > * Posix semphore and shmem both support ACL, but mqueue as one of the
> > three basic ipc doesn't.
> > * At least, it may save one note sentence for MQ_OVERVIEW(7)   ^_^
> >    "Linux does not currently (2.6.26) support the use of access
> > control lists (ACLs) for POSIX message queues."
> >    http://www.kernel.org/doc/man-pages/online/pages/man7/mq_overview.7.html
> >
> > On Thu, Oct 20, 2011 at 11:33 PM, James Morris <jmorris@...ei.org> wrote:
> > > On Thu, 20 Oct 2011, Zhou Peng wrote:
> > >
> > >> This patch adds ACL supports to mqueue filesystem.
> > >> Based on Linux 3.0.4.
> > >
> > > Why is this necessary, and who is planning to use it?
> > >
> > > Are any distros likely to enable this?
> > >
> 

-- 
James Morris
<jmorris@...ei.org>