Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261793AbVAYBJs (ORCPT ); Mon, 24 Jan 2005 20:09:48 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261782AbVAYBGz (ORCPT ); Mon, 24 Jan 2005 20:06:55 -0500 Received: from clock-tower.bc.nu ([81.2.110.250]:29595 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S261791AbVAYBGd (ORCPT ); Mon, 24 Jan 2005 20:06:33 -0500 Subject: Re: [PATCH] drivers/block/scsi_ioctl.c, Video DVD playback support From: Alan Cox To: Elias da Silva Cc: Jens Axboe , lkml In-Reply-To: <200501242310.00184.silva@aurigatec.de> References: <200501220327.38236.silva@aurigatec.de> <200501242059.06307.silva@aurigatec.de> <20050124203948.GR2707@suse.de> <200501242310.00184.silva@aurigatec.de> Content-Type: text/plain Content-Transfer-Encoding: 7bit Message-Id: <1106611309.6148.116.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 (1.4.6-2) Date: Tue, 25 Jan 2005 00:01:50 +0000 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 893 Lines: 19 On Llu, 2005-01-24 at 22:10, Elias da Silva wrote: > This is exactly the point: if the kernel wants to be safe, the > authentication procedure should be totally implemented in the kernel > and be protected against further changes via "alternative" ways... > but it isn't now and probably won't be although it could be. It provides the DVD_AUTH ioctls to handle this. Why are you banging raw commands at hardware when there is an abstraction for it ? Someone did actually have a demo of a small fs that allowed you to fiddle with the status but possibly the code could get smarter for "exclusive user of media". I'm not sure if that is worth it. - 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/