Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758711AbbKSPEO (ORCPT ); Thu, 19 Nov 2015 10:04:14 -0500 Received: from a.ns.miles-group.at ([95.130.255.143]:11949 "EHLO radon.swed.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758171AbbKSPEL (ORCPT ); Thu, 19 Nov 2015 10:04:11 -0500 Subject: Re: [PATCH v3 0/7] User namespace mount updates To: "Serge E. Hallyn" References: <564B941A.2070601@gmail.com> <20151117213255.GE108807@ubuntu-hedt> <564C6DD4.6090308@gmail.com> <20151118142238.GB134139@ubuntu-hedt> <20151118145818.GC22011@ZenIV.linux.org.uk> <20151118150512.GE134139@ubuntu-hedt> <20151118151335.GD22011@ZenIV.linux.org.uk> <564D7FF6.50408@nod.at> <20151119142113.GA5607@mail.hallyn.com> Cc: James Morris , Al Viro , Seth Forshee , Austin S Hemmelgarn , "Eric W. Biederman" , linux-bcache@vger.kernel.org, device-mapper development , "linux-raid@vger.kernel.org" , "linux-mtd@lists.infradead.org" , linux-fsdevel , LSM , selinux@tycho.nsa.gov, Serge Hallyn , Andy Lutomirski , LKML , "Theodore Ts'o" From: Richard Weinberger Message-ID: <564DE4E6.4000803@nod.at> Date: Thu, 19 Nov 2015 16:04:06 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 MIME-Version: 1.0 In-Reply-To: <20151119142113.GA5607@mail.hallyn.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1446 Lines: 35 Am 19.11.2015 um 15:21 schrieb Serge E. Hallyn: > On Thu, Nov 19, 2015 at 08:53:26AM +0100, Richard Weinberger wrote: >> Am 19.11.2015 um 08:47 schrieb James Morris: >>> On Wed, 18 Nov 2015, Richard Weinberger wrote: >>> >>>> On Wed, Nov 18, 2015 at 4:13 PM, Al Viro wrote: >>>>> On Wed, Nov 18, 2015 at 09:05:12AM -0600, Seth Forshee wrote: >>>>> >>>>>> Yes, the host admin. I'm not talking about trusting the admin inside the >>>>>> container at all. >>>>> >>>>> Then why not have the same host admin just plain mount it when setting the >>>>> container up and be done with that? From the host namespace, before spawning >>>>> the docker instance or whatever framework you are using. IDGI... >>>> >>>> Because hosting companies sell containers as "full virtual machines" >>>> and customers expect to be able mount stuff like disk images they upload. >>> >>> I don't think this is a valid reason for merging functionality into the >>> kernel. >> >> Erm, I don't want this in the kernel. That's why I've proposed the lklfuse approach. > > That would require the fuse-in-containers functionality, right? Correct. Still a less large attack surface. :-) Thanks, //richard -- 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/