From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 16 Jan 2001 09:40:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 16 Jan 2001 09:40:44 -0500 Received: from felix.convergence.de ([212.84.236.131]:64778 "EHLO convergence.de") by vger.kernel.org with ESMTP id ; Tue, 16 Jan 2001 09:40:41 -0500 Date: Tue, 16 Jan 2001 15:40:13 +0100 From: Felix von Leitner To: Linux Kernel List Subject: Re: O_ANY [was: Re: 'native files', 'object fingerprints' [was: sendpath()]] Message-ID: <20010116154013.C32180@convergence.de> Mail-Followup-To: Linux Kernel List In-Reply-To: <20010116061342.C12650@cadcamlab.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.3.12i In-Reply-To: ; from mingo@elte.hu on Tue, Jan 16, 2001 at 01:33:44PM +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Thus spake Ingo Molnar (mingo@elte.hu): > if you read my (radical) proposal, the identification is based on a kernel > pointer and a 256-bit random integer. So non-negative integers are not > needed. (file-IO system-calls would be modified to detect if 'Unix file > descriptors' or pointers to 'native file descriptors' are passed to them, > so this is truly radical.) Yuck, don't pass pointers in kernel space to user space! NT does it and look what kernel call argument verification havoc it wrought over them! Felix - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/