From: "J. Bruce Fields" <bfields@citi.umich.edu>
To: "Aneesh Kumar K. V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: sandeen@redhat.com, adilger@sun.com, tytso@mit.edu,
jlayton@redhat.com, Brad Boyer <flar@allandria.com>,
nfsv4@linux-nfs.org, samba@lists.samba.org, ffilz@us.ibm.com,
sfrench@us.ibm.com, linux-fsdevel@vger.kernel.org,
linux-ext4@vger.kernel.org, agruen@suse.de
Subject: Re: [PATCH 03/23] vfs: rich ACL in-memory representation and manipulation
Date: Mon, 1 Feb 2010 18:06:45 -0500 [thread overview]
Message-ID: <20100201230645.GO19418@fieldses.org> (raw)
In-Reply-To: <87y6jczve4.fsf@linux.vnet.ibm.com>
On Mon, Feb 01, 2010 at 11:32:59PM +0530, Aneesh Kumar K. V wrote:
> I guess id mapping needs more work in the patch. I would really like
> to hear from both NFS and Samba people in how they would like the
> id details to be stored. If we can't map an incoming user@domain
> request on nfs, I guess we definitely don't want to store the acl with
> 'nobody' id
I don't see the point in allowing the acl's to refer to arbitrary
user@domain strings unless we're also going to allow those strings as
file owners, allow processes to run *as* one of those strings, etc.
If we're really going to try to teach the core kernel to handle foreign
NFS or Samba identities, that's a separate project.
As long as the kernel's working with ordinary uid's and gid's, the acl's
should do the same, and NFS and Samba can take care of the conversion as
needed.
So I agree that we should be able to use a more compact representation
here.
--b.
next prev parent reply other threads:[~2010-02-01 23:06 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-01 5:34 [RFC PATCH] New ACL format for better NFSv4 acl interoperability Aneesh Kumar K.V
2010-02-01 5:34 ` [PATCH 01/23] vfs: VFS hooks for per-filesystem permission models Aneesh Kumar K.V
2010-02-01 5:34 ` [PATCH 02/23] vfs: Check for create permission during rename Aneesh Kumar K.V
2010-02-01 5:34 ` [PATCH 03/23] vfs: rich ACL in-memory representation and manipulation Aneesh Kumar K.V
2010-02-01 7:28 ` Brad Boyer
2010-02-01 18:02 ` Aneesh Kumar K. V
2010-02-01 23:06 ` J. Bruce Fields [this message]
2010-02-01 23:21 ` J. Bruce Fields
2010-02-01 5:34 ` [PATCH 04/23] richacl: Add write retention and retention hold access mask Aneesh Kumar K.V
2010-02-01 5:34 ` [PATCH 05/23] ext4: Implement rich acl for ext4 Aneesh Kumar K.V
2010-02-01 5:34 ` [PATCH 06/23] vfs: Implement those parts of Automatic Inheritance (AI) which are safe under POSIX Aneesh Kumar K.V
2010-02-01 5:34 ` [PATCH 07/23] vfs: Add Posix acl to rich acl mapping helpers Aneesh Kumar K.V
2010-02-01 23:18 ` J. Bruce Fields
2010-02-02 5:22 ` Aneesh Kumar K. V
2010-02-01 5:34 ` [PATCH 08/23] vfs: Add a flag to denote posix mapped richacl Aneesh Kumar K.V
2010-02-01 23:18 ` J. Bruce Fields
2010-02-02 5:33 ` Aneesh Kumar K. V
2010-02-02 15:18 ` J. Bruce Fields
2010-02-01 5:34 ` [PATCH 09/23] ext4: Add posix acl to rich acl mapping Aneesh Kumar K.V
2010-02-01 5:34 ` [PATCH 10/23] richacl: Add separate file and dir acl masks Aneesh Kumar K.V
2010-02-01 5:34 ` [PATCH 11/23] richacl: Move the xattr representation to little-endian format Aneesh Kumar K.V
2010-02-01 23:34 ` J. Bruce Fields
2010-02-02 5:35 ` Aneesh Kumar K. V
2010-02-01 5:34 ` [PATCH 12/23] richacl: Use directory specific mask values for operation on directories Aneesh Kumar K.V
2010-02-01 5:34 ` [PATCH 13/23] richacl: Follow nfs4 acl delete definition Aneesh Kumar K.V
2010-02-01 5:34 ` [PATCH 14/23] richacl: Disable automatic inheritance with posix mapped acls Aneesh Kumar K.V
2010-02-01 5:34 ` [PATCH 15/23] richacl: Delete posix acl if present on richacl set Aneesh Kumar K.V
2010-02-01 5:34 ` [PATCH 16/23] ext4: Update richacl incompat flag value Aneesh Kumar K.V
2010-02-01 23:41 ` J. Bruce Fields
2010-02-01 5:34 ` [PATCH 17/23] vfs: Add new MS_ACL and MS_RICHACL flag Aneesh Kumar K.V
2010-02-01 5:35 ` [PATCH 18/23] richacl: Add helper function for creating richacl from mode values Aneesh Kumar K.V
2010-02-01 5:35 ` [PATCH 19/23] fs: Use the correct MS_*ACL flags in file system code Aneesh Kumar K.V
2010-02-01 5:35 ` [PATCH 20/23] nfsd: Apply NFSv4acl to posix acl mapping only if MS_POSIXACL is set Aneesh Kumar K.V
2010-02-01 5:35 ` [PATCH 21/23] richacl: Add helpers for NFSv4 acl to richacl conversion Aneesh Kumar K.V
2010-02-01 5:35 ` [PATCH 22/23] nfsd: Add support for reading rich acl from file system Aneesh Kumar K.V
2010-02-01 5:35 ` [PATCH 23/23] nfsd: Add support for saving richacl Aneesh Kumar K.V
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