linux-kernel - Re: [PATCH 5/9] Make use of permissions, returned by kobj

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Message-ID: <20080307183052.GB3898@sergelap.austin.ibm.com>
Date:	Fri, 7 Mar 2008 12:30:52 -0600
From:	"Serge E. Hallyn" <serue@...ibm.com>
To:	Casey Schaufler <casey@...aufler-ca.com>
Cc:	"Serge E. Hallyn" <serue@...ibm.com>, Greg KH <greg@...ah.com>,
	Pavel Emelyanov <xemul@...nvz.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, menage@...gle.com, sukadev@...ibm.com
Subject: Re: [PATCH 5/9] Make use of permissions, returned by kobj_lookup

Quoting Casey Schaufler (casey@...aufler-ca.com):
> 
> --- "Serge E. Hallyn" <serue@...ibm.com> wrote:
> 
> > ...
> > 
> > Until user namespaces are complete, selinux seems the only good solution
> > to offer isolation.
> 
> Smack does it better and cheaper. (Unless you define good==selinux)
> (insert smiley)

Ah, thanks - I hadn't looked into it, but yes IIUC smack should
definately work.  I'll have to give that a shot.

(A basic selinux policy module to isolate a container was pretty simple,
but providing finer-grained intra-container access seems to take some
changes to the base refpolicy.  I've been waiting a few weeks to find
time to work on that.)

thanks,
-serge
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