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From: Casey Schaufler <casey@schaufler-ca.com>
To: casey.schaufler@intel.com, jmorris@namei.org,
	linux-security-module@vger.kernel.org, selinux@vger.kernel.org
Cc: casey@schaufler-ca.com, linux-audit@redhat.com,
	keescook@chromium.org, john.johansen@canonical.com,
	penguin-kernel@i-love.sakura.ne.jp, paul@paul-moore.com,
	stephen.smalley.work@gmail.com, linux-kernel@vger.kernel.org
Subject: [PATCH v37 25/33] LSM: Add a function to report multiple LSMs
Date: Mon, 27 Jun 2022 17:56:03 -0700	[thread overview]
Message-ID: <20220628005611.13106-26-casey@schaufler-ca.com> (raw)
In-Reply-To: <20220628005611.13106-1-casey@schaufler-ca.com>

Add a new boolean function lsm_multiple_contexts() to
identify when multiple security modules provide security
context strings.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Acked-by: Paul Moore <paul@paul-moore.com>
Reviewed-by: John Johansen <john.johansen@canonical.com>
---
 include/linux/security.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/linux/security.h b/include/linux/security.h
index 5ebc3ec6948c..890a5f9f043c 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -245,6 +245,15 @@ static inline const char *lsm_slot_to_name(int slot)
 }
 #endif
 
+static inline bool lsm_multiple_contexts(void)
+{
+#ifdef CONFIG_SECURITY
+	return lsm_slot_to_name(1) != NULL;
+#else
+	return false;
+#endif
+}
+
 /**
  * lsmblob_value - find the first non-zero value in an lsmblob structure.
  * @blob: Pointer to the data
-- 
2.36.1


  parent reply	other threads:[~2022-06-28  1:12 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20220628005611.13106-1-casey.ref@schaufler-ca.com>
2022-06-28  0:55 ` [PATCH v37 00/33] LSM: Module stacking for AppArmor Casey Schaufler
2022-06-28  0:55   ` [PATCH v37 01/33] integrity: disassociate ima_filter_rule from security_audit_rule Casey Schaufler
2022-06-28  0:55   ` [PATCH v37 02/33] LSM: Infrastructure management of the sock security Casey Schaufler
2022-06-28  0:55   ` [PATCH v37 03/33] LSM: Add the lsmblob data structure Casey Schaufler
2022-06-28  0:55   ` [PATCH v37 04/33] LSM: provide lsm name and id slot mappings Casey Schaufler
2022-06-28  0:55   ` [PATCH v37 05/33] IMA: avoid label collisions with stacked LSMs Casey Schaufler
2022-06-28  0:55   ` [PATCH v37 06/33] LSM: Use lsmblob in security_audit_rule_match Casey Schaufler
2022-06-28  0:55   ` [PATCH v37 07/33] LSM: Use lsmblob in security_kernel_act_as Casey Schaufler
2022-06-28  0:55   ` [PATCH v37 08/33] LSM: Use lsmblob in security_secctx_to_secid Casey Schaufler
2022-06-28  0:55   ` [PATCH v37 09/33] LSM: Use lsmblob in security_secid_to_secctx Casey Schaufler
2022-06-28  0:55   ` [PATCH v37 10/33] LSM: Use lsmblob in security_ipc_getsecid Casey Schaufler
2022-06-28  0:55   ` [PATCH v37 11/33] LSM: Use lsmblob in security_current_getsecid Casey Schaufler
2022-06-28  0:55   ` [PATCH v37 12/33] LSM: Use lsmblob in security_inode_getsecid Casey Schaufler
2022-06-28  0:55   ` [PATCH v37 13/33] LSM: Use lsmblob in security_cred_getsecid Casey Schaufler
2022-06-28  0:55   ` [PATCH v37 14/33] LSM: Specify which LSM to display Casey Schaufler
2022-06-28  0:55   ` [PATCH v37 15/33] LSM: Ensure the correct LSM context releaser Casey Schaufler
2022-06-28  0:55   ` [PATCH v37 16/33] LSM: Use lsmcontext in security_secid_to_secctx Casey Schaufler
2022-06-28  0:55   ` [PATCH v37 17/33] LSM: Use lsmcontext in security_inode_getsecctx Casey Schaufler
2022-06-28  0:55   ` [PATCH v37 18/33] LSM: Use lsmcontext in security_dentry_init_security Casey Schaufler
2022-06-28  5:36     ` kernel test robot
2022-06-28  8:44     ` kernel test robot
2022-06-28 11:24     ` kernel test robot
2022-06-28  0:55   ` [PATCH v37 19/33] LSM: security_secid_to_secctx in netlink netfilter Casey Schaufler
2022-06-28  0:55   ` [PATCH v37 20/33] NET: Store LSM netlabel data in a lsmblob Casey Schaufler
2022-06-28  0:55   ` [PATCH v37 21/33] binder: Pass LSM identifier for confirmation Casey Schaufler
2022-06-28  0:56   ` [PATCH v37 22/33] LSM: security_secid_to_secctx module selection Casey Schaufler
2022-06-28  0:56   ` [PATCH v37 23/33] Audit: Keep multiple LSM data in audit_names Casey Schaufler
2022-06-28  0:56   ` [PATCH v37 24/33] Audit: Create audit_stamp structure Casey Schaufler
2022-06-28  0:56   ` Casey Schaufler [this message]
2022-06-28  0:56   ` [PATCH v37 26/33] Audit: Allow multiple records in an audit_buffer Casey Schaufler
2022-06-28  0:56   ` [PATCH v37 27/33] Audit: Add record for multiple task security contexts Casey Schaufler
2022-06-28  0:56   ` [PATCH v37 28/33] audit: multiple subject lsm values for netlabel Casey Schaufler
2022-06-28  0:56   ` [PATCH v37 29/33] Audit: Add record for multiple object contexts Casey Schaufler
2022-06-28  0:56   ` [PATCH v37 30/33] netlabel: Use a struct lsmblob in audit data Casey Schaufler
2022-06-28  0:56   ` [PATCH v37 31/33] LSM: Removed scaffolding function lsmcontext_init Casey Schaufler
2022-06-28  0:56   ` [PATCH v37 32/33] LSM: Add /proc attr entry for full LSM context Casey Schaufler
2022-06-28  0:56   ` [PATCH v37 33/33] AppArmor: Remove the exclusive flag Casey Schaufler
2022-07-12 21:42   ` [PATCH v37 00/33] LSM: Module stacking for AppArmor John Johansen
2022-07-12 21:58     ` Casey Schaufler

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