diff mbox series

[v33,24/29] LSM: Add a function to report multiple LSMs

Message ID 20220310234632.16194-25-casey@schaufler-ca.com (mailing list archive)
State Changes Requested
Delegated to: Paul Moore
Headers show
Series [v33,01/29] integrity: disassociate ima_filter_rule from security_audit_rule | expand

Commit Message

Casey Schaufler March 10, 2022, 11:46 p.m. UTC
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>
---
 include/linux/security.h | 9 +++++++++
 1 file changed, 9 insertions(+)
diff mbox series

Patch

diff --git a/include/linux/security.h b/include/linux/security.h
index 6dbdfd12fd79..13bc38970498 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