From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266493AbUHGDMC (ORCPT ); Fri, 6 Aug 2004 23:12:02 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267776AbUHGDL7 (ORCPT ); Fri, 6 Aug 2004 23:11:59 -0400 Received: from epithumia.math.uh.edu ([129.7.128.2]:50066 "EHLO epithumia.math.uh.edu") by vger.kernel.org with ESMTP id S266212AbUHGDLs (ORCPT ); Fri, 6 Aug 2004 23:11:48 -0400 To: Jens Axboe Cc: Alan Cox , Zinx Verituse , Linux Kernel Mailing List Subject: Re: ide-cd problems References: <20040730193651.GA25616@bliss> <20040731153609.GG23697@suse.de> <20040731182741.GA21845@bliss> <20040731200036.GM23697@suse.de> <20040731210257.GA22560@bliss> <20040805054056.GC10376@suse.de> <1091739966.8418.38.camel@localhost.localdomain> <20040806054424.GB10274@suse.de> <20040806062331.GE10274@suse.de> <1091794470.16306.11.camel@localhost.localdomain> <20040806143258.GB23263@suse.de> From: Jason L Tibbitts III Date: Fri, 06 Aug 2004 22:11:40 -0500 In-Reply-To: <20040806143258.GB23263@suse.de> (Jens Axboe's message of "Fri, 6 Aug 2004 16:32:58 +0200") Message-ID: User-Agent: Gnus/5.1006 (Gnus v5.10.6) XEmacs/21.4 (Security Through Obscurity, linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org >>>>> "JA" == Jens Axboe writes: JA> Like when dvd readers became common, you can't just require people JA> to update their kernel because a few new commands are needed to JA> drive them from user space. Perhaps I'm being completely dense, but why would the filtering tables have to be compiled into the kernel? Why not load them from user space via a mechanism requiring CAP_SYS_RAWIO? How many commands are we talking about here? Is the mechanism workable by a simple bitmask, or is something more complex like a state machine required? - J<