+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "CanPowerOff") ||
+ dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "CanReboot")) {
+
+ bool multiple_sessions, challenge, inhibit, b;
+ const char *action, *result;
+
+ r = have_multiple_sessions(connection, m, message, &error);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, &error, r);
+
+ multiple_sessions = r > 0;
+ inhibit = !!(manager_inhibit_what(m) & INHIBIT_SHUTDOWN);
+
+ if (multiple_sessions) {
+ action = streq(dbus_message_get_member(message), "CanPowerOff") ?
+ "org.freedesktop.login1.power-off-multiple-sessions" :
+ "org.freedesktop.login1.reboot-multiple-sessions";
+
+ r = verify_polkit(connection, message, action, false, &challenge, &error);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, &error, r);
+
+ if (r > 0)
+ result = "yes";
+ else if (challenge)
+ result = "challenge";
+ else
+ result = "no";
+ }
+
+ if (inhibit) {
+ action = streq(dbus_message_get_member(message), "CanPowerOff") ?
+ "org.freedesktop.login1.power-off-ignore-inhibit" :
+ "org.freedesktop.login1.reboot-ignore-inhibit";
+
+ r = verify_polkit(connection, message, action, false, &challenge, &error);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, &error, r);
+
+ if (r > 0 && !result)
+ result = "yes";
+ else if (challenge && (!result || streq(result, "yes")))
+ result = "challenge";
+ else
+ result = "no";
+ }
+
+ if (!multiple_sessions && !inhibit) {
+ /* If neither inhibit nor multiple sessions
+ * apply then just check the normal policy */
+
+ action = streq(dbus_message_get_member(message), "CanPowerOff") ?
+ "org.freedesktop.login1.power-off" :
+ "org.freedesktop.login1.reboot";
+
+ r = verify_polkit(connection, message, action, false, &challenge, &error);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, &error, r);
+
+ if (r > 0)
+ result = "yes";
+ else if (challenge)
+ result = "challenge";
+ else
+ result = "no";
+ }
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ b = dbus_message_append_args(
+ reply,
+ DBUS_TYPE_STRING, &result,
+ DBUS_TYPE_INVALID);
+ if (!b)
+ goto oom;
+