#!/usr/bin/env python3 # # Copyright (C) 2020-2021 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/>. import os import argparse from psutil import process_iter from vyos.util import call from vyos.util import DEVNULL from vyos.util import is_wwan_connected def check_ppp_interface(interface): if not os.path.isfile(f'/etc/ppp/peers/{interface}'): print(f'Interface {interface} does not exist!') exit(1) def check_ppp_running(interface): """ Check if PPP process is running in the interface in question """ for p in process_iter(): if "pppd" in p.name(): if interface in p.cmdline(): return True return False def connect(interface): """ Connect dialer interface """ if interface.startswith('ppp'): check_ppp_interface(interface) # Check if interface is already dialed if os.path.isdir(f'/sys/class/net/{interface}'): print(f'Interface {interface}: already connected!') elif check_ppp_running(interface): print(f'Interface {interface}: connection is beeing established!') else: print(f'Interface {interface}: connecting...') call(f'systemctl restart ppp@{interface}.service') elif interface.startswith('wwan'): if is_wwan_connected(interface): print(f'Interface {interface}: already connected!') else: call(f'VYOS_TAGNODE_VALUE={interface} /usr/libexec/vyos/conf_mode/interfaces-wwan.py') else: print(f'Unknown interface {interface}, can not connect. Aborting!') def disconnect(interface): """ Disconnect dialer interface """ if interface.startswith('ppp'): check_ppp_interface(interface) # Check if interface is already down if not check_ppp_running(interface): print(f'Interface {interface}: connection is already down') else: print(f'Interface {interface}: disconnecting...') call(f'systemctl stop ppp@{interface}.service') elif interface.startswith('wwan'): if not is_wwan_connected(interface): print(f'Interface {interface}: connection is already down') else: modem = interface.lstrip('wwan') call(f'mmcli --modem {modem} --simple-disconnect', stdout=DEVNULL) else: print(f'Unknown interface {interface}, can not disconnect. Aborting!') def main(): parser = argparse.ArgumentParser() group = parser.add_mutually_exclusive_group() group.add_argument("--connect", help="Bring up a connection-oriented network interface", action="store") group.add_argument("--disconnect", help="Take down connection-oriented network interface", action="store") args = parser.parse_args() if args.connect: connect(args.connect) elif args.disconnect: disconnect(args.disconnect) else: parser.print_help() exit(0) if __name__ == '__main__': main()