+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "TakeControl")) {
+ dbus_bool_t force;
+ unsigned long ul;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_BOOLEAN, &force,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ ul = dbus_bus_get_unix_user(connection, dbus_message_get_sender(message), &error);
+ if (ul == (unsigned long) -1)
+ return bus_send_error_reply(connection, message, &error, -EIO);
+
+ if (ul != 0 && (force || ul != s->user->uid))
+ return bus_send_error_reply(connection, message, NULL, -EPERM);
+
+ r = session_set_controller(s, bus_message_get_sender_with_fallback(message), force);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, r);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "ReleaseControl")) {
+ const char *sender = bus_message_get_sender_with_fallback(message);
+
+ if (!session_is_controller(s, sender))
+ return bus_send_error_reply(connection, message, NULL, -EPERM);
+
+ session_drop_controller(s);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+