#!/usr/bin/env python3 # # Copyright (C) 2018 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/>. # File: restart_dhcp_relay.py # Purpose: # Restart IPv4 and IPv6 DHCP relay instances of dhcrelay service import sys import argparse import os import vyos.config from vyos.util import call from vyos.util import commit_in_progress parser = argparse.ArgumentParser() parser.add_argument("--ipv4", action="store_true", help="Restart IPv4 DHCP relay") parser.add_argument("--ipv6", action="store_true", help="Restart IPv6 DHCP relay") if __name__ == '__main__': args = parser.parse_args() c = vyos.config.Config() if args.ipv4: # Do nothing if service is not configured if not c.exists_effective('service dhcp-relay'): print("DHCP relay service not configured") else: if commit_in_progress(): print('Cannot restart DHCP relay while a commit is in progress') exit(1) call('systemctl restart isc-dhcp-server.service') sys.exit(0) elif args.ipv6: # Do nothing if service is not configured if not c.exists_effective('service dhcpv6-relay'): print("DHCPv6 relay service not configured") else: if commit_in_progress(): print('Cannot restart DHCPv6 relay while commit is in progress') exit(1) call('systemctl restart isc-dhcp-server6.service') sys.exit(0) else: parser.print_help() sys.exit(1)