safesetid: move initcalls to the LSM framework

Reviewed-by: Kees Cook <kees@kernel.org>
Acked-by: Micah Morton <mortonm@chromium.org>
Reviewed-by: John Johansen <john.johhansen@canonical.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>

Author: pcmoore

security/safesetid/lsm.c

@@ -289,4 +289,5 @@ static int __init safesetid_security_init(void)
 DEFINE_LSM(safesetid_security_init) = {
 	.id = &safesetid_lsmid,
 	.init = safesetid_security_init,
+	.initcall_fs = safesetid_init_securityfs,
 };

security/safesetid/lsm.h

@@ -70,4 +70,6 @@ enum sid_policy_type _setid_policy_lookup(struct setid_ruleset *policy,
 extern struct setid_ruleset __rcu *safesetid_setuid_rules;
 extern struct setid_ruleset __rcu *safesetid_setgid_rules;
 
+int safesetid_init_securityfs(void);
+
 #endif /* _SAFESETID_H */

security/safesetid/securityfs.c

@@ -308,7 +308,7 @@ static const struct file_operations safesetid_gid_file_fops = {
 	.write = safesetid_gid_file_write,
 };
 
-static int __init safesetid_init_securityfs(void)
+int __init safesetid_init_securityfs(void)
 {
 	int ret;
 	struct dentry *policy_dir;
@@ -345,4 +345,3 @@ static int __init safesetid_init_securityfs(void)
 	securityfs_remove(policy_dir);
 	return ret;
 }
-fs_initcall(safesetid_init_securityfs);