TOMOYO: Add auditing interface.

Add /sys/kernel/security/tomoyo/audit interface. This interface generates audit
logs in the form of domain policy so that /usr/sbin/tomoyo-auditd can reuse
audit logs for appending to /sys/kernel/security/tomoyo/domain_policy
interface.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
diff --git a/security/tomoyo/securityfs_if.c b/security/tomoyo/securityfs_if.c
index 6410868..e056609 100644
--- a/security/tomoyo/securityfs_if.c
+++ b/security/tomoyo/securityfs_if.c
@@ -135,6 +135,8 @@
 			    TOMOYO_DOMAINPOLICY);
 	tomoyo_create_entry("exception_policy", 0600, tomoyo_dir,
 			    TOMOYO_EXCEPTIONPOLICY);
+	tomoyo_create_entry("audit",            0400, tomoyo_dir,
+			    TOMOYO_AUDIT);
 	tomoyo_create_entry("self_domain",      0400, tomoyo_dir,
 			    TOMOYO_SELFDOMAIN);
 	tomoyo_create_entry(".domain_status",   0600, tomoyo_dir,