linux-kernel - Re: [AppArmor 39/45] AppArmor: Profile loading and manipulation, pathname matching

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Message-ID: <979511.88139.qm@web36601.mail.mud.yahoo.com>
Date:	Fri, 15 Jun 2007 19:57:17 -0700 (PDT)
From:	Casey Schaufler <casey@...aufler-ca.com>
To:	James Morris <jmorris@...ei.org>, Greg KH <greg@...ah.com>
Cc:	Pavel Machek <pavel@....cz>, Crispin Cowan <crispin@...ell.com>,
	Andreas Gruenbacher <agruen@...e.de>,
	Stephen Smalley <sds@...ho.nsa.gov>, jjohansen@...e.de,
	linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org,
	linux-fsdevel@...r.kernel.org
Subject: Re: [AppArmor 39/45] AppArmor: Profile loading and manipulation, pathname matching


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

> On my system, it takes about 1.2 seconds to label a fully checked out 
> kernel source tree with ~23,000 files in this manner

That's an eternity for that many files to be improperly labeled.
If, and the "if" didn't originate with me, your policy is
demonstrably correct (how do you do that?) for all domains
you could claim that the action is safe, if not ideal. 
I can't say if an evaluation team would buy the "safe"
argument. They've been known to balk before.


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