From: Fan Wu <wufan@linux.microsoft.com>
To: corbet@lwn.net, zohar@linux.ibm.com, jmorris@namei.org,
serge@hallyn.com, tytso@mit.edu, ebiggers@kernel.org,
axboe@kernel.dk, agk@redhat.com, snitzer@kernel.org,
eparis@redhat.com, paul@paul-moore.com
Cc: linux-doc@vger.kernel.org, linux-integrity@vger.kernel.org,
linux-security-module@vger.kernel.org,
linux-fscrypt@vger.kernel.org, linux-block@vger.kernel.org,
dm-devel@redhat.com, audit@vger.kernel.org,
roberto.sassu@huawei.com, linux-kernel@vger.kernel.org,
Fan Wu <wufan@linux.microsoft.com>
Subject: [RFC PATCH v11 11/19] dm verity: set DM_TARGET_SINGLETON feature flag
Date: Wed, 4 Oct 2023 15:09:38 -0700 [thread overview]
Message-ID: <1696457386-3010-12-git-send-email-wufan@linux.microsoft.com> (raw)
In-Reply-To: <1696457386-3010-1-git-send-email-wufan@linux.microsoft.com>
The device-mapper has a flag to mark targets as singleton, which is a
required flag for immutable targets. Without this flag, multiple
dm-verity targets can be added to a mapped device, which has no
practical use cases and will let dm_table_get_immutable_target return
NULL. This patch adds the missing flag, restricting only one
dm-verity target per mapped device.
Signed-off-by: Fan Wu <wufan@linux.microsoft.com>
---
v1-v10:
+ Not present
---
drivers/md/dm-verity-target.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c
index 26adcfea0302..80673b66c194 100644
--- a/drivers/md/dm-verity-target.c
+++ b/drivers/md/dm-verity-target.c
@@ -1503,7 +1503,7 @@ int dm_verity_get_root_digest(struct dm_target *ti, u8 **root_digest, unsigned i
static struct target_type verity_target = {
.name = "verity",
- .features = DM_TARGET_IMMUTABLE,
+ .features = DM_TARGET_SINGLETON | DM_TARGET_IMMUTABLE,
.version = {1, 9, 0},
.module = THIS_MODULE,
.ctr = verity_ctr,
--
2.25.1
next prev parent reply other threads:[~2023-10-04 22:10 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-04 22:09 [RFC PATCH v11 00/19] Integrity Policy Enforcement LSM (IPE) Fan Wu
2023-10-04 22:09 ` [RFC PATCH v11 01/19] security: add ipe lsm Fan Wu
2023-10-04 22:09 ` [RFC PATCH v11 02/19] ipe: add policy parser Fan Wu
2023-10-24 3:52 ` [PATCH RFC v11 2/19] " Paul Moore
2023-10-25 22:45 ` Fan Wu
2023-10-26 21:36 ` Paul Moore
2023-10-04 22:09 ` [RFC PATCH v11 03/19] ipe: add evaluation loop Fan Wu
2023-10-24 3:52 ` [PATCH RFC v11 3/19] " Paul Moore
2023-10-26 0:15 ` Fan Wu
2023-10-04 22:09 ` [RFC PATCH v11 04/19] ipe: add LSM hooks on execution and kernel read Fan Wu
2023-10-24 3:52 ` [PATCH RFC v11 4/19] " Paul Moore
2023-10-04 22:09 ` [RFC PATCH v11 05/19] ipe: introduce 'boot_verified' as a trust provider Fan Wu
2023-10-24 3:52 ` [PATCH RFC v11 5/19] " Paul Moore
2023-10-26 21:33 ` Fan Wu
2023-10-26 22:12 ` Paul Moore
2023-11-02 22:46 ` Fan Wu
2023-11-03 22:15 ` Paul Moore
2023-11-03 22:30 ` Paul Moore
2023-10-04 22:09 ` [RFC PATCH v11 06/19] security: add new securityfs delete function Fan Wu
2023-10-04 22:09 ` [RFC PATCH v11 07/19] ipe: add userspace interface Fan Wu
2023-10-04 22:09 ` [RFC PATCH v11 08/19] uapi|audit|ipe: add ipe auditing support Fan Wu
2023-10-24 3:52 ` [PATCH RFC v11 8/19] " Paul Moore
2023-11-02 22:55 ` Fan Wu
2023-10-04 22:09 ` [RFC PATCH v11 09/19] ipe: add permissive toggle Fan Wu
2023-10-24 3:52 ` [PATCH RFC v11 9/19] " Paul Moore
2023-11-02 22:56 ` Fan Wu
2023-10-04 22:09 ` [RFC PATCH v11 10/19] block|security: add LSM blob to block_device Fan Wu
2023-10-04 22:09 ` Fan Wu [this message]
2023-10-24 3:52 ` [PATCH RFC v11 11/19] dm verity: set DM_TARGET_SINGLETON feature flag Paul Moore
2023-11-02 0:40 ` Paul Moore
2023-10-04 22:09 ` [RFC PATCH v11 12/19] dm: add finalize hook to target_type Fan Wu
2023-10-24 3:52 ` [PATCH RFC " Paul Moore
2023-11-02 0:41 ` Paul Moore
2023-10-04 22:09 ` [RFC PATCH v11 13/19] dm verity: consume root hash digest and signature data via LSM hook Fan Wu
2023-10-24 3:52 ` [PATCH RFC " Paul Moore
2023-11-02 0:41 ` Paul Moore
2023-10-04 22:09 ` [RFC PATCH v11 14/19] ipe: add support for dm-verity as a trust provider Fan Wu
2023-10-24 3:52 ` [PATCH RFC " Paul Moore
2023-11-02 22:40 ` Fan Wu
2023-10-04 22:09 ` [RFC PATCH v11 15/19] fsverity: consume builtin signature via LSM hook Fan Wu
2023-10-05 2:27 ` Eric Biggers
2023-10-05 2:49 ` Fan Wu
2023-10-24 3:52 ` [PATCH RFC " Paul Moore
2023-11-02 0:40 ` Paul Moore
2023-11-02 2:53 ` Eric Biggers
2023-11-02 15:42 ` Paul Moore
2023-11-02 19:33 ` Fan Wu
2023-10-04 22:09 ` [RFC PATCH v11 16/19] ipe: enable support for fs-verity as a trust provider Fan Wu
2023-10-04 23:58 ` Randy Dunlap
2023-10-05 2:45 ` Fan Wu
2023-10-24 3:52 ` [PATCH RFC " Paul Moore
2023-10-04 22:09 ` [RFC PATCH v11 17/19] scripts: add boot policy generation program Fan Wu
2023-10-24 3:52 ` [PATCH RFC " Paul Moore
2023-11-02 23:09 ` Fan Wu
2023-10-04 22:09 ` [RFC PATCH v11 18/19] ipe: kunit test for parser Fan Wu
2023-10-24 3:52 ` [PATCH RFC " Paul Moore
2023-11-02 23:11 ` Fan Wu
2023-10-04 22:09 ` [RFC PATCH v11 19/19] documentation: add ipe documentation Fan Wu
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