From: Christian Brauner <brauner@kernel.org>
To: Eryu Guan <guan@eryu.me>,
fstests@vger.kernel.org, Christoph Hellwig <hch@lst.de>
Cc: "Darrick J . Wong" <djwong@kernel.org>,
David Howells <dhowells@redhat.com>,
Christian Brauner <christian.brauner@ubuntu.com>
Subject: [PATCH v10 3/6] common/rc: add _scratch_{u}mount_idmapped() helpers
Date: Mon, 22 Mar 2021 14:45:19 +0100 [thread overview]
Message-ID: <20210322134522.916512-4-brauner@kernel.org> (raw)
In-Reply-To: <20210322134522.916512-1-brauner@kernel.org>
From: Christian Brauner <christian.brauner@ubuntu.com>
They will be used in follow-up patches for xfs quota tests but might be
useful for other tests in the future.
Cc: Eryu Guan <guan@eryu.me>
Cc: Christoph Hellwig <hch@lst.de>
Cc: David Howells <dhowells@redhat.com>
Cc: fstests@vger.kernel.org
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
---
common/rc | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
diff --git a/common/rc b/common/rc
index a8b375a2..351996fc 100644
--- a/common/rc
+++ b/common/rc
@@ -342,6 +342,36 @@ _scratch_mount()
_try_scratch_mount $* || _fail "mount failed"
}
+_scratch_mount_idmapped()
+{
+ local type="$1"
+ local id="$2"
+
+ if [ "$type" = "u" ]; then
+ # This means root will be able to create files as uid %id in
+ # the underlying filesystem by going through the idmapped mount.
+ $here/src/idmapped-mounts/mount-idmapped --map-mount u:0:$id:1 \
+ --map-mount u:$id:0:1 \
+ --map-mount g:0:0:1 \
+ "$SCRATCH_MNT" "$SCRATCH_MNT" || _fail "mount-idmapped failed"
+ elif [ "$type" = "g" ]; then
+ # This means root will be able to create files as gid %id in
+ # the underlying filesystem by going through the idmapped mount.
+ $here/src/idmapped-mounts/mount-idmapped --map-mount g:0:$id:1 \
+ --map-mount g:$id:0:1 \
+ --map-mount u:0:0:1 \
+ "$SCRATCH_MNT" "$SCRATCH_MNT" || _fail "mount-idmapped failed"
+ elif [ "$type" = "b" ]; then
+ # This means root will be able to create files as uid and gid
+ # %id in the underlying filesystem by going through the idmapped mount.
+ $here/src/idmapped-mounts/mount-idmapped --map-mount b:0:$id:1 \
+ --map-mount b:$id:0:1 \
+ "$SCRATCH_MNT" "$SCRATCH_MNT" || _fail "mount-idmapped failed"
+ else
+ _fail "usage: either \"u\" (uid), \"g\" (gid), or \"b\" (uid and gid) must be specified "
+ fi
+}
+
_scratch_unmount()
{
case "$FSTYP" in
@@ -357,6 +387,11 @@ _scratch_unmount()
esac
}
+_scratch_umount_idmapped()
+{
+ $UMOUNT_PROG $SCRATCH_MNT
+}
+
_scratch_remount()
{
local opts="$1"
--
2.27.0
next prev parent reply other threads:[~2021-03-22 13:46 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-22 13:45 [PATCH v10 0/6] fstests: add idmapped mounts tests Christian Brauner
2021-03-22 13:45 ` [PATCH v10 1/6] generic/631: add test for detached mount propagation Christian Brauner
2021-03-24 7:40 ` Amir Goldstein
2021-03-24 7:50 ` Christian Brauner
2021-03-24 8:04 ` Amir Goldstein
2021-03-24 8:39 ` Christian Brauner
2021-03-24 9:45 ` Amir Goldstein
2021-03-24 9:52 ` Christian Brauner
2021-03-22 13:45 ` Christian Brauner [this message]
2021-03-22 13:45 ` [PATCH v10 4/6] common/quota: move _qsetup() helper to common code Christian Brauner
2021-03-22 13:45 ` [PATCH v10 5/6] xfs/529: quotas and idmapped mounts Christian Brauner
2021-03-22 13:45 ` [PATCH v10 6/6] xfs/530: quotas on " Christian Brauner
2021-03-22 13:50 ` [PATCH v10 0/6] fstests: add idmapped mounts tests Christian Brauner
2021-03-22 14:21 ` Christian Brauner
2021-03-24 8:03 ` Amir Goldstein
2021-03-24 8:41 ` Christian Brauner
2021-03-24 11:24 ` Amir Goldstein
2021-03-24 13:33 ` Amir Goldstein
2021-03-24 13:49 ` Christian Brauner
2021-03-24 13:45 ` Christian Brauner
2021-03-24 14:01 ` Amir Goldstein
2021-03-24 14:03 ` Christian Brauner
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210322134522.916512-4-brauner@kernel.org \
--to=brauner@kernel.org \
--cc=christian.brauner@ubuntu.com \
--cc=dhowells@redhat.com \
--cc=djwong@kernel.org \
--cc=fstests@vger.kernel.org \
--cc=guan@eryu.me \
--cc=hch@lst.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).