From: "J. Bruce Fields" Subject: Re: [NFS] [PATCH] nfs4, special files, and set/listxattr asymmetry Date: Tue, 8 Jan 2008 17:25:22 -0500 Message-ID: <20080108222522.GT22155@fieldses.org> References: <20080108182038.GJ22155@fieldses.org> <200801082147.m08LlF3D023364@agora.fsl.cs.sunysb.edu> <20080108215736.GP22155@fieldses.org> <1199829935.8434.75.camel@moss-terrapins.epoch.ncsc.mil> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Cc: nfs@lists.sourceforge.net, Erez Zadok , Trond Myklebust To: Dave Quigley Return-path: Received: from neil.brown.name ([220.233.11.133]:49309 "EHLO neil.brown.name" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755982AbYAHWZj (ORCPT ); Tue, 8 Jan 2008 17:25:39 -0500 Received: from brown by neil.brown.name with local (Exim 4.63) (envelope-from ) id 1JCMt6-0000Ev-Lj for linux-nfs@vger.kernel.org; Wed, 09 Jan 2008 09:25:36 +1100 In-Reply-To: <1199829935.8434.75.camel-88+Bj4OksMGWPftkNcioYDMZycKHmlmlfvIqQ387n9k@public.gmane.org> Sender: linux-nfs-owner@vger.kernel.org List-ID: On Tue, Jan 08, 2008 at 05:05:35PM -0500, Dave Quigley wrote: > xattrs are only the local Linux representation of a MAC attribute. For > the purpose of interoperability we can't assume xattrs considering NFSv4 > doesn't contain them in the specification. We considered the named > attributes but they fall short concerning file labeling. Instead we are > working on adding another recommended attribute to the NFSv4 > specification to handle an opaque security label. For your purposes you > can continue to think of them as extended attributes since that is the > interface that Linux has chosen for security attributes. However, I > don't see this functionality making its way into Linux any time soon > since it will require a change to the NFSv4 standard and they are > wrapping up the NFSv4.1 specification. I can't say how long it will be > before NFSv4.2 starts up. Maybe future events will cause that to happen > sooner than later. I would hope that the existance of a good, well-documented implementation is the important thing, and would make things go more quickly. --b. ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ NFS maillist - NFS@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs _______________________________________________ Please note that nfs@lists.sourceforge.net is being discontinued. Please subscribe to linux-nfs@vger.kernel.org instead. http://vger.kernel.org/vger-lists.html#linux-nfs