+ if (!dbus_message_iter_next(&iter_struct) ||
+ dbus_message_iter_get_arg_type(&iter_struct) != DBUS_TYPE_BOOLEAN) {
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_message_iter_get_basic(&iter_struct, &challenge);
+
+ if (authorized)
+ r = 1;
+ else if (_challenge) {
+ *_challenge = !!challenge;
+ r = 0;
+ } else
+ r = -EPERM;