LSM: Record LSM name in struct lsm_info

In preparation for making LSM selections outside of the LSMs, include
the name of LSMs in struct lsm_info.

Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: James Morris <james.morris@microsoft.com>

include/linux/lsm_hooks.h

@@ -2040,6 +2040,7 @@ extern void security_add_hooks(struct security_hook_list *hooks, int count,
 				char *lsm);
 
 struct lsm_info {
+	const char *name;	/* Required. */
 	int (*init)(void);	/* Required. */
 };
 

security/apparmor/lsm.c

@@ -1607,5 +1607,6 @@ alloc_out:
 }
 
 DEFINE_LSM(apparmor) = {
+	.name = "apparmor",
 	.init = apparmor_init,
 };

security/integrity/iint.c

@@ -176,6 +176,7 @@ static int __init integrity_iintcache_init(void)
 	return 0;
 }
 DEFINE_LSM(integrity) = {
+	.name = "integrity",
 	.init = integrity_iintcache_init,
 };
 

security/selinux/hooks.c

@@ -7203,6 +7203,7 @@ void selinux_complete_init(void)
 /* SELinux requires early initialization in order to label
    all processes and objects when they are created. */
 DEFINE_LSM(selinux) = {
+	.name = "selinux",
 	.init = selinux_init,
 };
 

security/smack/smack_lsm.c

@@ -4883,5 +4883,6 @@ static __init int smack_init(void)
  * all processes and objects when they are created.
  */
 DEFINE_LSM(smack) = {
+	.name = "smack",
 	.init = smack_init,
 };

security/tomoyo/tomoyo.c

@@ -551,5 +551,6 @@ static int __init tomoyo_init(void)
 }
 
 DEFINE_LSM(tomoyo) = {
+	.name = "tomoyo",
 	.init = tomoyo_init,
 };