linux-kernel - Re: [PATCH] Version 3 (2.6.23-rc8) Smack: Simplified Mandatory Access Control Kernel

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Date:	Mon, 1 Oct 2007 13:28:21 -0700 (PDT)
From:	Casey Schaufler <casey@...aufler-ca.com>
To:	Andi Kleen <ak@...e.de>, Theodore Tso <tytso@....edu>
Cc:	Joshua Brindle <method@...icmethod.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	casey@...aufler-ca.com, torvalds@...ux-foundation.org,
	linux-security-module@...r.kernel.org,
	linux-kernel@...r.kernel.org, James Morris <jmorris@...ei.org>,
	Paul Moore <paul.moore@...com>
Subject: Re: [PATCH] Version 3 (2.6.23-rc8) Smack: Simplified Mandatory Access Control Kernel


--- Andi Kleen <ak@...e.de> wrote:


> Anyways; if someone wants to cripple their security for some
> performance this way they can surely do this; but i don't think we should 
> offer it as a default configuration option (just as we don't have a 
> CONFIG_NULL_LSM even though there are undoubtedly systems that don't
> care about permission checking[1]) 
> 
> -Andi
> 
> [1] I bet I gave the linux-tiny crowd an idea now ;-)

You would need authoritative LSM hooks for this. The current LSM
additional restrictions model does not provide for this.


Casey Schaufler
casey@...aufler-ca.com
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