Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761417AbXFJVGT (ORCPT ); Sun, 10 Jun 2007 17:06:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752646AbXFJVGE (ORCPT ); Sun, 10 Jun 2007 17:06:04 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:47028 "EHLO amd.ucw.cz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751637AbXFJVGD (ORCPT ); Sun, 10 Jun 2007 17:06:03 -0400 Date: Sun, 10 Jun 2007 23:05:47 +0200 From: Pavel Machek To: david@lang.hm Cc: Greg KH , Andreas Gruenbacher , Stephen Smalley , jjohansen@suse.de, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: Re: [AppArmor 39/45] AppArmor: Profile loading and manipulation, pathname matching Message-ID: <20070610210547.GC25138@elf.ucw.cz> References: <20070514110607.549397248@suse.de> <200706042303.28785.agruen@suse.de> <1181136386.3699.70.camel@moss-spartans.epoch.ncsc.mil> <200706090003.57722.agruen@suse.de> <20070609001703.GA17644@kroah.com> <20070610083427.GA24808@elf.ucw.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.11+cvs20060126 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1006 Lines: 26 Hi! > >>extended out this can come close to giving each file it's own label. AA > >>essentially does this and calls the label the path and computes it at > >>runtime instead of storing it somewhere. > > > >Yes, and in the process, AA stores compiled regular expressions in > >kernel. Ouch. I'll take "each file it's own label" over _that_ any time. > > and if each file has it's own label you are going to need regex or similar > to deal with them as well. But you have that regex in _user_ space, in a place where policy is loaded into kernel. AA has regex parser in _kernel_ space, which is very wrong. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/