[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20220418145945.38797-25-casey@schaufler-ca.com>
Date: Mon, 18 Apr 2022 07:59:40 -0700
From: Casey Schaufler <casey@...aufler-ca.com>
To: casey.schaufler@...el.com, jmorris@...ei.org,
linux-security-module@...r.kernel.org, selinux@...r.kernel.org
Cc: casey@...aufler-ca.com, linux-audit@...hat.com,
keescook@...omium.org, john.johansen@...onical.com,
penguin-kernel@...ove.sakura.ne.jp, paul@...l-moore.com,
stephen.smalley.work@...il.com, linux-kernel@...r.kernel.org
Subject: [PATCH v35 24/29] LSM: Add a function to report multiple LSMs
Add a new boolean function lsm_multiple_contexts() to
identify when multiple security modules provide security
context strings.
Signed-off-by: Casey Schaufler <casey@...aufler-ca.com>
---
include/linux/security.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/include/linux/security.h b/include/linux/security.h
index 2150016492be..3fab84220f88 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -232,6 +232,15 @@ static inline bool lsmblob_equal(const struct lsmblob *bloba,
extern int lsm_name_to_slot(char *name);
extern const char *lsm_slot_to_name(int slot);
+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
--
2.35.1
Powered by blists - more mailing lists