From: Samir Bellabes <sam@synack.fr>
To: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Michael Stone <michael@laptop.org>, linux-kernel@vger.kernel.org,
       linux-security-module@vger.kernel.org, Andi Kleen <andi@firstfloor.org>,
       David Lang <david@lang.hm>, Oliver Hartkopp <socketcan@hartkopp.net>,
       Alan Cox <alan@lxorguk.ukuu.org.uk>,
       Herbert Xu <herbert@gondor.apana.org.au>,
       Valdis Kletnieks <Valdis.Kletnieks@vt.edu>,
       Bryan Donlan <bdonlan@gmail.com>,
       "C. Scott Ananian" <cscott@cscott.net>,
       James Morris <jmorris@namei.org>,
       "Eric W. Biederman" <ebiederm@xmission.com>,
       Bernie Innocenti <bernie@codewiz.org>,
       Mark Seaborn <mrs@mythic-beasts.com>,
       Randy Dunlap <randy.dunlap@oracle.com>,
       =?iso-8859-15?Q?Am=E9rico?= Wang <xiyou.wangcong@gmail.com>
Subject: Re: A basic question about the security_* hooks
References: <20091224022902.GA24234@heat> <20091224073654.GD16133@ioremap.net>
Date: Thu, 24 Dec 2009 19:57:52 +0100
In-Reply-To: <20091224073654.GD16133@ioremap.net> (Evgeniy Polyakov's message
	of "Thu, 24 Dec 2009 10:36:54 +0300")
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Evgeniy Polyakov <zbr@ioremap.net> writes:

> I believe you should convice selinux and friends to add support for your
> extension, otherwise no distribution will be able to turn it on, since
> no two security frameworks can be registered simultaneously.

I agree, as a LSM module, this purpose is a no sense, because it will
avoid using another security module.
On the other hand, adding this capacity directly to the syscalls seems
to be a little bit ugly (it reminds me security post_accept hook
strategy of returning or not a value). 

But the way to go is to add this directly to existing security models,
if it make sens for them.

sam
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