Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933387AbXLPLbU (ORCPT ); Sun, 16 Dec 2007 06:31:20 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1765071AbXLPLbK (ORCPT ); Sun, 16 Dec 2007 06:31:10 -0500 Received: from hawking.rebel.net.au ([203.20.69.83]:37852 "EHLO hawking.rebel.net.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761184AbXLPLbI (ORCPT ); Sun, 16 Dec 2007 06:31:08 -0500 Message-ID: <47650C88.6040105@davidnewall.com> Date: Sun, 16 Dec 2007 22:01:20 +1030 From: David Newall User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.2) Gecko/20070221 SeaMonkey/1.1.1 MIME-Version: 1.0 To: Tetsuo Handa CC: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [patch 1/2] [RFC] Simple tamper-proof device filesystem. References: <20071216080441.435456586@I-love.SAKURA.ne.jp> <20071216080628.061470932@I-love.SAKURA.ne.jp> <200712161944.HEI26071.MOtOFLVHFSQFOJ@I-love.SAKURA.ne.jp> <200712161956.BJE32406.FOOHtQJLMFOSVF@I-love.SAKURA.ne.jp> <47650A4C.4000708@davidnewall.com> <200712162026.BFJ01924.tOFJSFOQMVHOLF@I-love.SAKURA.ne.jp> In-Reply-To: <200712162026.BFJ01924.tOFJSFOQMVHOLF@I-love.SAKURA.ne.jp> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 867 Lines: 27 Tetsuo Handa wrote: > David Newall wrote: > >> Tetsuo Handa wrote: >> >>> /dev needs to be writable, but this means that files on /dev might be >>> tampered with. >>> >> I infer that you mean /dev needs to be writable by anyone, not by just >> its owner or owner and group (conventionally root/root.) This goes >> against conventional wisdom, which is that /dev must be writable only by >> the administrator. Why do you say otherwise? >> > I didn't mean that "/dev is writable by everybody". > Glad to hear it! :) > I meant that "/dev must be mounted for read-write mode" > Again, why? -- 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/