From: "J. Bruce Fields" <bfields@fieldses.org>
To: David Quigley <dpquigl@davequigley.com>
Cc: Steve Dickson <steved@redhat.com>,
"David P. Quigley" <selinux@davequigley.com>,
trond.myklebust@netapp.com, sds@tycho.nsa.gov,
linux-nfs@vger.kernel.org, selinux@tycho.nsa.gov,
linux-security-module@vger.kernel.org
Subject: Re: Labeled NFS [v5]
Date: Wed, 14 Nov 2012 09:24:58 -0500 [thread overview]
Message-ID: <20121114142458.GF23604@fieldses.org> (raw)
In-Reply-To: <80f36fef2a58eb538bce28daba3a862a@countercultured.net>
On Wed, Nov 14, 2012 at 09:04:18AM -0500, David Quigley wrote:
> On 11/14/2012 08:59, J. Bruce Fields wrote:
> >On Wed, Nov 14, 2012 at 08:50:17AM -0500, David Quigley wrote:
> >>On 11/14/2012 08:45, J. Bruce Fields wrote:
> >>>On Tue, Nov 13, 2012 at 11:32:53PM -0500, Dave Quigley wrote:
> >>>>Ok so if you go to http://www.selinuxproject.org/git you will
> >>see a
> >>>>repo for lnfs and lnfs-patchset. The instructions at
> >>>>http://www.selinuxproject.org/page/Labeled_NFS give you a better
> >>>>indication on how to pull the trees. I've attached a patch for NFS
> >>>>utils which gives support for security_label/nosecurity_label in
> >>>>your /etc/exports file.
> >>>
> >>>Do we need an export option? Is there any reason not to make the
> >>>feature available whenever there's support available for it?
> >>
> >>I guess we could build it in but I figured an export option allowed
> >>someone to turn off security labeling support if they didn't want it
> >>on that export. What happens to clients when the server returns a
> >>cap that they don't support? Do they mask the bits out?
> >
> >Yeah, they should just ignore it.
> >
> >While this is still experimental it's still nice to have a way to
> >turn
> >this on and off at runtime so people can experiment without having to
> >have it on for everyone all the time. But
> >nfsd_supported_minorversion
> >should be sufficient for that.
> >
> >(I don't think your patches actually dealt yet with the fact that
> >this
> >is part of minor version 2? Another for the todo list.)
> >
> >--b.
>
> If we use nfsd_supported_minorversion which I'm guessing is an
> export option
That's just a variable in the code. It's controlled by
/proc/fs/nfsd/versions.
> what happens if someone wants to use other 4.2
> features but not labeling?
We'll cross that bridge when we come to it, maybe by adding some new
global paramater.
There's no reason this really needs to be per-export, is there?
--b.
> I'll switch it over if you guys want it
> done that way, I think though that this provides more flexibility.
> Although anything that makes me carry around fewer patches is good
> in my book.
>
> Dave
next prev parent reply other threads:[~2012-11-14 14:25 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-12 6:15 Labeled NFS [v5] David Quigley
2012-11-12 6:15 ` [PATCH 01/13] Security: Add hook to calculate context based on a negative dentry David Quigley
2012-11-12 12:13 ` J. Bruce Fields
2012-11-12 14:52 ` Dave Quigley
2012-11-12 6:15 ` [PATCH 02/13] Security: Add Hook to test if the particular xattr is part of a MAC model David Quigley
2012-11-12 12:15 ` J. Bruce Fields
2012-11-12 14:56 ` Dave Quigley
2012-11-12 16:36 ` J. Bruce Fields
2012-11-12 19:36 ` David P. Quigley
2012-11-12 21:43 ` J. Bruce Fields
2012-11-13 0:12 ` Dave Quigley
2012-11-12 6:15 ` [PATCH 03/13] LSM: Add flags field to security_sb_set_mnt_opts for in kernel mount data David Quigley
2012-11-12 6:15 ` [PATCH 04/13] SELinux: Add new labeling type native labels David Quigley
2012-11-12 6:15 ` [PATCH 05/13] KConfig: Add KConfig entries for Labeled NFS David Quigley
2012-11-12 14:45 ` J. Bruce Fields
2012-11-12 14:57 ` Dave Quigley
2012-11-12 6:15 ` [PATCH 06/13] NFSv4: Add label recommended attribute and NFSv4 flags David Quigley
2012-11-12 6:15 ` [PATCH 07/13] NFSv4: Introduce new label structure David Quigley
2012-11-12 15:13 ` J. Bruce Fields
2012-11-12 15:32 ` David P. Quigley
2012-11-12 16:05 ` J. Bruce Fields
2012-11-12 16:53 ` David P. Quigley
2012-11-12 17:50 ` J. Bruce Fields
2012-11-12 6:15 ` [PATCH 08/13] NFSv4: Extend fattr bitmaps to support all 3 words David Quigley
2012-11-12 6:15 ` [PATCH 09/13] NFS:Add labels to client function prototypes David Quigley
2012-11-12 6:15 ` [PATCH 10/13] NFS: Add label lifecycle management David Quigley
2012-11-12 15:33 ` J. Bruce Fields
2012-11-12 15:36 ` David P. Quigley
2012-11-12 6:15 ` [PATCH 11/13] NFS: Client implementation of Labeled-NFS David Quigley
2012-11-12 6:15 ` [PATCH 12/13] NFS: Extend NFS xattr handlers to accept the security namespace David Quigley
2012-11-12 6:15 ` [PATCH 13/13] NFSD: Server implementation of MAC Labeling David Quigley
2012-11-12 16:31 ` J. Bruce Fields
2012-11-12 15:23 ` Labeled NFS [v5] J. Bruce Fields
2012-11-12 15:34 ` David P. Quigley
2012-11-12 16:09 ` J. Bruce Fields
2012-11-12 20:56 ` Steve Dickson
2012-11-13 1:39 ` Dave Quigley
2012-11-13 12:55 ` Steve Dickson
2012-11-14 4:32 ` Dave Quigley
2012-11-14 13:45 ` J. Bruce Fields
2012-11-14 13:50 ` David Quigley
2012-11-14 13:59 ` J. Bruce Fields
2012-11-14 14:01 ` David Quigley
2012-11-14 14:04 ` David Quigley
2012-11-14 14:24 ` J. Bruce Fields [this message]
2012-11-14 14:30 ` David Quigley
2012-11-15 16:00 ` Casey Schaufler
2012-11-15 20:28 ` David Quigley
2012-11-16 3:34 ` Casey Schaufler
2012-11-16 3:43 ` David Quigley
2012-11-16 4:58 ` Dave Quigley
2012-11-16 4:59 ` Dave Quigley
2012-11-14 13:56 ` David Quigley
2012-11-12 16:33 ` J. Bruce Fields
2012-11-12 20:44 ` Dave Quigley
2012-11-12 22:23 ` Casey Schaufler
2012-11-13 3:16 ` Dave Quigley
2012-11-20 21:09 ` Casey Schaufler
2012-11-21 0:04 ` Dave Quigley
2012-11-21 0:29 ` Dave Quigley
2012-11-21 0:32 ` Casey Schaufler
2012-11-21 0:37 ` Dave Quigley
2012-11-21 2:52 ` Casey Schaufler
2012-11-21 3:28 ` Dave Quigley
2012-11-28 18:57 ` Casey Schaufler
2012-11-29 1:14 ` Dave Quigley
2012-11-29 2:08 ` Casey Schaufler
2012-11-29 22:28 ` Casey Schaufler
2012-11-29 22:49 ` David Quigley
2012-11-30 0:02 ` David Quigley
2012-11-30 0:07 ` David Quigley
2012-11-30 0:34 ` Casey Schaufler
2012-11-30 0:46 ` David Quigley
2012-11-30 1:50 ` Casey Schaufler
2012-11-30 2:02 ` David Quigley
2012-11-30 12:14 ` J. Bruce Fields
2012-11-30 12:57 ` David Quigley
2012-11-30 13:17 ` David Quigley
2012-11-30 13:28 ` Stephen Smalley
2012-11-30 13:35 ` David Quigley
2012-11-30 13:50 ` Stephen Smalley
2012-11-30 14:02 ` David Quigley
2012-11-30 16:21 ` Casey Schaufler
2012-11-30 16:28 ` David Quigley
2012-12-03 18:27 ` Casey Schaufler
2012-11-30 16:55 ` J. Bruce Fields
2012-11-30 16:59 ` David Quigley
2012-11-30 13:20 ` David Quigley
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