From: "J. Bruce Fields" Subject: Re: [PATCH 6/6] nfs: Fix misparsing of nfsv4 fs_locations attribute Date: Tue, 10 Jun 2008 15:17:52 -0400 Message-ID: <20080610191752.GN20184@fieldses.org> References: <1213044696-32741-1-git-send-email-bfields@citi.umich.edu> <1213044696-32741-2-git-send-email-bfields@citi.umich.edu> <1213044696-32741-3-git-send-email-bfields@citi.umich.edu> <1213044696-32741-4-git-send-email-bfields@citi.umich.edu> <1213044696-32741-5-git-send-email-bfields@citi.umich.edu> <1213044696-32741-6-git-send-email-bfields@citi.umich.edu> <1213044696-32741-7-git-send-email-bfields@citi.umich.edu> <1213045696.19130.7.camel@localhost> <20080609212205.GB32446@fieldses.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Trond Myklebust , linux-nfs@vger.kernel.org To: Chuck Lever Return-path: Received: from mail.fieldses.org ([66.93.2.214]:48272 "EHLO fieldses.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754356AbYFJTSF (ORCPT ); Tue, 10 Jun 2008 15:18:05 -0400 In-Reply-To: Sender: linux-nfs-owner@vger.kernel.org List-ID: On Tue, Jun 10, 2008 at 11:34:14AM -0400, Chuck Lever wrote: > On Jun 9, 2008, at 5:22 PM, J. Bruce Fields wrote: >> On Mon, Jun 09, 2008 at 05:08:16PM -0400, Trond Myklebust wrote: >>> >>> What if it is an IPv6 address? As I've said before, could we please >>> just >>> adapt nfs_parse_server_address to deal with all these cases? >> >> I haven't had the time to do that, so I thought we'd rather have a fix >> for the immediate bug now, then add ipv6 support later. For all I >> know >> the final patches might end up factoring reasonable cleanly that way >> anyway. > > I have a patch (upcoming for 2.6.27) that fixes nfs_parse_server_address > to be careful about '\0'-termination. It changes the function to take a > char * and a length. All you will need to do is make it non-static. OK, good. That patch and my patch will apply together in either order; mine ditches the unnecessary valid_ipadd4() and relies on in4_pton() instead. Yours makes nfs_parse_server_address more-or-less a drop-in replacement for in4_pton there. And it should be easy to switch it over either in whichever patch comes second or in a small third patch. So, I was right, this is the natural way to factor out the change anyway. The one remaining thing missing for that to work, I think, is to fix the struct sockaddr *addr; field in nfs_clone_mount? --b. > > (I would have mentioned it yesterday but I thought I had dropped the > patch from my "for 2.6.27" series).