#!/usr/bin/env python3 # # Copyright (C) 2021 VyOS maintainers and contributors # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License version 2 or later as # published by the Free Software Foundation. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. ## Script called up strongswan to bring the vti interface up/down based on the state of the IPSec tunnel. ## Called as vti_up_down vti_intf_name import os import sys from syslog import syslog from syslog import openlog from syslog import LOG_PID from syslog import LOG_INFO from vyos.configquery import ConfigTreeQuery from vyos.util import call from vyos.util import get_interface_config from vyos.util import get_interface_address if __name__ == '__main__': verb = os.getenv('PLUTO_VERB') connection = os.getenv('PLUTO_CONNECTION') interface = sys.argv[1] openlog(ident=f'vti-up-down', logoption=LOG_PID, facility=LOG_INFO) syslog(f'Interface {interface} {verb} {connection}') if verb in ['up-client', 'up-host']: call('sudo ip route delete default table 220') vti_link = get_interface_config(interface) if not vti_link: syslog(f'Interface {interface} not found') sys.exit(0) vti_link_up = (vti_link['operstate'] != 'DOWN' if 'operstate' in vti_link else False) config = ConfigTreeQuery() vti_dict = config.get_config_dict(['interfaces', 'vti', interface], get_first_key=True) if verb in ['up-client', 'up-host']: if not vti_link_up: if 'disable' not in vti_dict: call(f'sudo ip link set {interface} up') else: syslog(f'Interface {interface} is admin down ...') elif verb in ['down-client', 'down-host']: if vti_link_up: call(f'sudo ip link set {interface} down')