Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262138AbVD1UVv (ORCPT ); Thu, 28 Apr 2005 16:21:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262127AbVD1UVv (ORCPT ); Thu, 28 Apr 2005 16:21:51 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:23515 "EHLO amd.ucw.cz") by vger.kernel.org with ESMTP id S262111AbVD1UVq (ORCPT ); Thu, 28 Apr 2005 16:21:46 -0400 Date: Thu, 28 Apr 2005 22:21:27 +0200 From: Pavel Machek To: Miklos Szeredi Cc: mj@ucw.cz, lmb@suse.de, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] private mounts Message-ID: <20050428202127.GC12431@elf.ucw.cz> References: <20050427143126.GB1957@mail.shareable.org> <20050427153320.GA19065@atrey.karlin.mff.cuni.cz> <20050427155022.GR4431@marowsky-bree.de> <20050427164652.GA3129@ucw.cz> <20050427175425.GA4241@ucw.cz> <20050428130819.GF2226@openzaurus.ucw.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.6+20040907i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 939 Lines: 23 Hi! > > Exactly. So can we simply merge root-only fuse, and then worry > > how to make it safe with user-mounted fuse. See your own unfsd example > > why user-mounting is bad. > > > > One possible solution would be to have root-owned fused that > > talks to user-owned fused-s and checks they are behaving correctly? > > It's very hard to do that. What should be the timeout for requests, > so that valid filesystems don't break, yet it's not possible to do a > fairly ugly DoS? It's almost impossible I'd say. You can still put those two lines into root-owned fused, where people are less likely to notice them ;-). Pavel -- Boycott Kodak -- for their patent abuse against Java. - 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/