selinux:  Report permissive mode in avc: denied messages.

We cannot presently tell from an avc: denied message whether access was in
fact denied or was allowed due to global or per-domain permissive mode.
Add a permissive= field to the avc message to reflect this information.

Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Paul Moore <pmoore@redhat.com>
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index d58946d..889cf4c 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -2770,6 +2770,7 @@
 
 static noinline int audit_inode_permission(struct inode *inode,
 					   u32 perms, u32 audited, u32 denied,
+					   int result,
 					   unsigned flags)
 {
 	struct common_audit_data ad;
@@ -2780,7 +2781,7 @@
 	ad.u.inode = inode;
 
 	rc = slow_avc_audit(current_sid(), isec->sid, isec->sclass, perms,
-			    audited, denied, &ad, flags);
+			    audited, denied, result, &ad, flags);
 	if (rc)
 		return rc;
 	return 0;
@@ -2822,7 +2823,7 @@
 	if (likely(!audited))
 		return rc;
 
-	rc2 = audit_inode_permission(inode, perms, audited, denied, flags);
+	rc2 = audit_inode_permission(inode, perms, audited, denied, rc, flags);
 	if (rc2)
 		return rc2;
 	return rc;