From: James Morris <jmorris@namei.org>
To: Christian Brauner <christian.brauner@ubuntu.com>
Cc: "Alexander Viro" <viro@zeniv.linux.org.uk>,
"Christoph Hellwig" <hch@lst.de>,
linux-fsdevel@vger.kernel.org,
"John Johansen" <john.johansen@canonical.com>,
"Mimi Zohar" <zohar@linux.ibm.com>,
"Dmitry Kasatkin" <dmitry.kasatkin@gmail.com>,
"Stephen Smalley" <stephen.smalley.work@gmail.com>,
"Casey Schaufler" <casey@schaufler-ca.com>,
"Arnd Bergmann" <arnd@arndb.de>,
"Andreas Dilger" <adilger.kernel@dilger.ca>,
"OGAWA Hirofumi" <hirofumi@mail.parknet.co.jp>,
"Geoffrey Thomas" <geofft@ldpreload.com>,
"Mrunal Patel" <mpatel@redhat.com>,
"Josh Triplett" <josh@joshtriplett.org>,
"Andy Lutomirski" <luto@kernel.org>,
"Theodore Tso" <tytso@mit.edu>, "Alban Crequy" <alban@kinvolk.io>,
"Tycho Andersen" <tycho@tycho.ws>,
"David Howells" <dhowells@redhat.com>,
"James Bottomley" <James.Bottomley@hansenpartnership.com>,
"Seth Forshee" <seth.forshee@canonical.com>,
"Stéphane Graber" <stgraber@ubuntu.com>,
"Linus Torvalds" <torvalds@linux-foundation.org>,
"Aleksa Sarai" <cyphar@cyphar.com>,
"Lennart Poettering" <lennart@poettering.net>,
"Eric W. Biederman" <ebiederm@xmission.com>,
smbarber@chromium.org, "Phil Estes" <estesp@gmail.com>,
"Serge Hallyn" <serge@hallyn.com>,
"Kees Cook" <keescook@chromium.org>,
"Todd Kjos" <tkjos@google.com>,
"Paul Moore" <paul@paul-moore.com>,
"Jonathan Corbet" <corbet@lwn.net>,
containers@lists.linux-foundation.org,
linux-security-module@vger.kernel.org, linux-api@vger.kernel.org,
linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org,
linux-integrity@vger.kernel.org, selinux@vger.kernel.org
Subject: Re: [PATCH v6 11/40] stat: handle idmapped mounts
Date: Fri, 22 Jan 2021 14:28:46 +1100 (AEDT) [thread overview]
Message-ID: <841ffb88-b1a6-2497-a68a-f89ad903dd8@namei.org> (raw)
In-Reply-To: <20210121131959.646623-12-christian.brauner@ubuntu.com>
On Thu, 21 Jan 2021, Christian Brauner wrote:
> The generic_fillattr() helper fills in the basic attributes associated
> with an inode. Enable it to handle idmapped mounts. If the inode is
> accessed through an idmapped mount map it into the mount's user
> namespace before we store the uid and gid. If the initial user namespace
> is passed nothing changes so non-idmapped mounts will see identical
> behavior as before.
>
> Link: https://lore.kernel.org/r/20210112220124.837960-19-christian.brauner@ubuntu.com
> Cc: Christoph Hellwig <hch@lst.de>
> Cc: David Howells <dhowells@redhat.com>
> Cc: Al Viro <viro@zeniv.linux.org.uk>
> Cc: linux-fsdevel@vger.kernel.org
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Reviewed-by: James Morris <jamorris@linux.microsoft.com>
--
James Morris
<jmorris@namei.org>
next prev parent reply other threads:[~2021-01-22 3:30 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-21 13:19 [PATCH v6 00/40] idmapped mounts Christian Brauner
2021-01-21 13:19 ` [PATCH v6 01/40] mount: attach mappings to mounts Christian Brauner
2021-01-21 13:19 ` [PATCH v6 02/40] fs: add id translation helpers Christian Brauner
2021-03-13 0:05 ` Vivek Goyal
2021-01-21 13:19 ` [PATCH v6 03/40] fs: add file and path permissions helpers Christian Brauner
2021-01-22 2:55 ` James Morris
2021-01-21 13:19 ` [PATCH v6 04/40] capability: handle idmapped mounts Christian Brauner
2021-01-22 2:57 ` James Morris
2021-01-21 13:19 ` [PATCH v6 05/39] namei: make permission helpers idmapped mount aware Christian Brauner
2021-01-22 3:02 ` James Morris
2021-01-22 22:26 ` J. Bruce Fields
2021-01-23 13:09 ` Christian Brauner
2021-01-24 22:18 ` J. Bruce Fields
2021-01-24 22:44 ` Christian Brauner
2021-01-21 13:19 ` [PATCH v6 06/40] inode: make init and " Christian Brauner
2021-01-22 3:10 ` James Morris
2021-01-21 13:19 ` [PATCH v6 07/40] attr: handle idmapped mounts Christian Brauner
2021-01-21 13:19 ` [PATCH v6 08/40] acl: " Christian Brauner
2021-01-21 13:19 ` [PATCH v6 09/40] xattr: " Christian Brauner
2021-01-22 3:21 ` James Morris
2021-01-21 13:19 ` [PATCH v6 10/40] commoncap: " Christian Brauner
2021-01-22 3:27 ` James Morris
2021-01-21 13:19 ` [PATCH v6 11/40] stat: " Christian Brauner
2021-01-22 3:28 ` James Morris [this message]
2021-01-21 13:19 ` [PATCH v6 12/40] namei: handle idmapped mounts in may_*() helpers Christian Brauner
2021-01-22 3:47 ` James Morris
2021-01-21 13:19 ` [PATCH v6 13/40] namei: introduce struct renamedata Christian Brauner
2021-01-21 13:19 ` [PATCH v6 14/40] namei: prepare for idmapped mounts Christian Brauner
2021-01-21 13:19 ` [PATCH v6 15/40] open: handle idmapped mounts in do_truncate() Christian Brauner
2021-01-22 17:20 ` Christoph Hellwig
2021-01-21 13:19 ` [PATCH v6 16/40] open: handle idmapped mounts Christian Brauner
2021-01-22 4:14 ` James Morris
2021-01-22 17:21 ` Christoph Hellwig
2021-01-21 13:19 ` [PATCH v6 17/40] af_unix: " Christian Brauner
2021-01-22 4:14 ` James Morris
2021-01-21 13:19 ` [PATCH v6 18/40] utimes: " Christian Brauner
2021-01-22 4:15 ` James Morris
2021-01-21 13:19 ` [PATCH v6 19/40] fcntl: " Christian Brauner
2021-01-22 4:17 ` James Morris
2021-01-21 13:19 ` [PATCH v6 20/40] init: " Christian Brauner
2021-01-22 17:23 ` Christoph Hellwig
2021-01-21 13:19 ` [PATCH v6 21/40] ioctl: " Christian Brauner
2021-01-22 4:33 ` James Morris
2021-01-21 13:19 ` [PATCH v6 22/40] would_dump: " Christian Brauner
2021-01-21 13:19 ` [PATCH v6 23/40] exec: " Christian Brauner
2021-01-22 4:35 ` James Morris
2021-01-25 16:39 ` Eric W. Biederman
2021-01-25 16:44 ` Christian Brauner
2021-01-25 17:03 ` Serge E. Hallyn
2021-01-25 17:06 ` Christian Brauner
2021-01-27 5:50 ` Serge E. Hallyn
2021-01-21 13:19 ` [PATCH v6 25/40] apparmor: " Christian Brauner
2021-01-21 13:19 ` [PATCH v6 26/39] ima: " Christian Brauner
2021-01-21 13:19 ` [PATCH v6 27/40] ecryptfs: do not mount on top of " Christian Brauner
2021-01-22 4:37 ` James Morris
2021-01-21 13:19 ` [PATCH v6 28/40] overlayfs: " Christian Brauner
2021-01-22 4:38 ` James Morris
2021-01-21 13:19 ` [PATCH v6 29/40] namespace: take lock_mount_hash() directly when changing flags Christian Brauner
2021-01-21 13:19 ` [PATCH v6 30/40] mount: make {lock,unlock}_mount_hash() static Christian Brauner
2021-01-21 13:19 ` [PATCH v6 31/40] namespace: only take read lock in do_reconfigure_mnt() Christian Brauner
2021-01-21 13:19 ` [PATCH v6 32/40] fs: split out functions to hold writers Christian Brauner
2021-01-21 13:19 ` [PATCH v6 33/40] fs: add attr_flags_to_mnt_flags helper Christian Brauner
2021-01-21 13:19 ` [PATCH v6 34/40] fs: add mount_setattr() Christian Brauner
2021-01-21 13:19 ` [PATCH v6 35/40] fs: introduce MOUNT_ATTR_IDMAP Christian Brauner
2021-01-22 17:33 ` Christoph Hellwig
2021-01-22 17:34 ` Christoph Hellwig
2021-01-21 13:19 ` [PATCH v6 36/40] tests: add mount_setattr() selftests Christian Brauner
2021-01-21 13:19 ` [PATCH v6 37/40] fat: handle idmapped mounts Christian Brauner
2021-01-21 13:19 ` [PATCH v6 38/40] ext4: support " Christian Brauner
2021-01-21 13:19 ` [PATCH v6 39/40] xfs: " Christian Brauner
2021-03-01 20:05 ` Darrick J. Wong
2021-03-01 20:46 ` Christian Brauner
2021-03-03 7:01 ` Christoph Hellwig
2021-01-27 5:40 ` [PATCH v6 00/40] " Serge E. Hallyn
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