From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751563AbeEFKKo (ORCPT ); Sun, 6 May 2018 06:10:44 -0400 Received: from mondschein.lichtvoll.de ([194.150.191.11]:45643 "EHLO mail.lichtvoll.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751200AbeEFKKn (ORCPT ); Sun, 6 May 2018 06:10:43 -0400 Authentication-Results: auth=pass smtp.auth=martin smtp.mailfrom=martin@lichtvoll.de From: Martin Steigerwald To: John Paul Adrian Glaubitz Cc: jdow , Geert Uytterhoeven , Matthew Wilcox , David Sterba , Linux FS Devel , Linux Kernel Mailing List , Jens Axboe , linux-m68k Subject: Re: moving affs + RDB partition support to staging? Date: Sun, 06 May 2018 12:10:40 +0200 Message-ID: <1580998.mIZvI3OA13@merkaba> In-Reply-To: References: <20180425154602.GA8546@bombadil.infradead.org> <7a997bb7-7f1c-e8b4-667c-3993f1d82e7c@earthlink.net> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org John Paul Adrian Glaubitz - 06.05.18, 10:52: > On 04/27/2018 03:26 AM, jdow wrote: > > And before I forget there are two features of the RDBs that I > > heartily recommend never implementing on Linux. They were good > > ideas at the time; but, times changed. The RDBs are capable of > > storing a filesystem driver and some drive init code for the plugin > > disk driver card. That is giving malware authors entirely goo easy > > a shot at owning a machine. Martin S., I would strongly suggest > > that going forward those two capabilities be removed from the RDB > > readers in AmigaOS as well as Linux OS. > > I assume removing the feature for AmigaOS isn't really possible since > we don't have the source code for that, do we? AmigaOS 4.x does not support loading filesystems from RDB anymore as far as I know. Meanwhile I am not involved with the AmigaOS development anymore, but that is the last state I know. Similarily to Linux filesystems drivers are loaded as "modules" into the kernel. Its also still possible to load a filesystem as a file from disk, but that does not work for the filesystem the kernel boots from. The AmigaOS kernel still decides which of the kernel filesystem to use according to the DOSType of the partition. Thanks, -- Martin From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mondschein.lichtvoll.de ([194.150.191.11]:45643 "EHLO mail.lichtvoll.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751200AbeEFKKn (ORCPT ); Sun, 6 May 2018 06:10:43 -0400 From: Martin Steigerwald To: John Paul Adrian Glaubitz Cc: jdow , Geert Uytterhoeven , Matthew Wilcox , David Sterba , Linux FS Devel , Linux Kernel Mailing List , Jens Axboe , linux-m68k Subject: Re: moving affs + RDB partition support to staging? Date: Sun, 06 May 2018 12:10:40 +0200 Message-ID: <1580998.mIZvI3OA13@merkaba> In-Reply-To: References: <20180425154602.GA8546@bombadil.infradead.org> <7a997bb7-7f1c-e8b4-667c-3993f1d82e7c@earthlink.net> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-fsdevel-owner@vger.kernel.org List-ID: John Paul Adrian Glaubitz - 06.05.18, 10:52: > On 04/27/2018 03:26 AM, jdow wrote: > > And before I forget there are two features of the RDBs that I > > heartily recommend never implementing on Linux. They were good > > ideas at the time; but, times changed. The RDBs are capable of > > storing a filesystem driver and some drive init code for the plugin > > disk driver card. That is giving malware authors entirely goo easy > > a shot at owning a machine. Martin S., I would strongly suggest > > that going forward those two capabilities be removed from the RDB > > readers in AmigaOS as well as Linux OS. > > I assume removing the feature for AmigaOS isn't really possible since > we don't have the source code for that, do we? AmigaOS 4.x does not support loading filesystems from RDB anymore as far as I know. Meanwhile I am not involved with the AmigaOS development anymore, but that is the last state I know. Similarily to Linux filesystems drivers are loaded as "modules" into the kernel. Its also still possible to load a filesystem as a file from disk, but that does not work for the filesystem the kernel boots from. The AmigaOS kernel still decides which of the kernel filesystem to use according to the DOSType of the partition. Thanks, -- Martin