linux-kernel - Re: AppArmor FAQ

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Message-ID: <20070609141159.GA20094@elf.ucw.cz>
Date:	Sat, 9 Jun 2007 16:11:59 +0200
From:	Pavel Machek <pavel@....cz>
To:	Crispin Cowan <crispin@...ell.com>
Cc:	Karl MacMillan <kmacmill@...hat.com>,
	James Morris <jmorris@...ei.org>,
	John Johansen <jjohansen@...e.de>,
	linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org,
	linux-fsdevel@...r.kernel.org
Subject: Re: AppArmor FAQ

Hi!

> >> Some may infer otherwise from your document.
> >>     
> > Not only that, the implication that secrecy is only useful to
> > intelligence agencies is pretty funny.
> That was not the claim. Rather, that intelligence agencies have a very
> strong need for privacy, and will go to greater lengths to get it,
> including using MLS systems. I contend that while most organizations
> want privacy, they don't want it so badly that they will put up with
> MLS, and so are looking for a more tolerable form of security.
> 
> This is relevant here because information flow is the main advantage of
> labels over pathnames for access control. AppArmor does not attempt to
> manage information flow, allowing it to use pathnames to achieve ease of
> use. If you want information flow control, then by all means use a

As SEEdit shows, you can still have ease-of-use with system capable of
MLS.... so don't try to paint is as "pathnames are neccessary so it is
easy to use".

Just extend SELinux to handle new files.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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