Config option to set a default LSM

[safe/jmp/linux-2.6] / security / security.c

diff --git a/security/security.c b/security/security.c
index 684d5ee..aad71b2 100644 (file)
--- a/security/security.c
+++ b/security/security.c
@@ -19,7 +19,8 @@
 #include <linux/ima.h>
 
 /* Boot-time LSM user choice */
-static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1];
+static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
+       CONFIG_DEFAULT_SECURITY;
 
 /* things that live in capability.c */
 extern struct security_operations default_security_ops;
@@ -80,8 +81,10 @@ __setup("security=", choose_lsm);
  *
  * Return true if:
  *     -The passed LSM is the one chosen by user at boot time,
- *     -or user didn't specify a specific LSM and we're the first to ask
- *      for registration permission,
+ *     -or the passed LSM is configured as the default and the user did not
+ *      choose an alternate LSM at boot time,
+ *     -or there is no default LSM set and the user didn't specify a
+ *      specific LSM and we're the first to ask for registration permission,
  *     -or the passed LSM is currently loaded.
  * Otherwise, return false.
  */