linux-kernel - Re: [Labeled-nfs] [RFC v3] Security Label Support for NFSv4

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Date:	Mon, 13 Oct 2008 22:15:57 -0400
From:	"Matthew N. Dodd" <Matthew.Dodd@...rta.com>
To:	James Morris <jmorris@...ei.org>
CC:	"David P. Quigley" <dpquigl@...ho.nsa.gov>,
	labeled-nfs@...ux-nfs.org, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org,
	linux-security-module@...r.kernel.org, viro@...iv.linux.org.uk,
	selinux@...ho.nsa.gov
Subject: Re: [Labeled-nfs] [RFC v3] Security Label Support for NFSv4

James Morris wrote:
> On Mon, 29 Sep 2008, David P. Quigley wrote:
> 
>> 	* New security flavor (auth_seclabel) to transport process label to
>> 	  server. This is a derivative of auth_unix so it does not support
>> 	  kerberos which has its own issues that need to be dealt with.
> 
> This is a problem, as discussed last year:
> 
> http://linux-nfs.org/pipermail/labeled-nfs/2007-November/000110.html
> 
> We can't require the use of a new auth flavor which is incompatible with 
> auth_gss.

auth_seclabel demonstrates the flavor independent changes required for 
any RPC layer process label transport.  A GSS solution is currently 
under discussion.
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