#!/usr/bin/env python3 # # Copyright (C) 2020 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 sys import exit from psutil import process_iter from time import strftime, localtime, time from vyos.util import call def check_interface(interface): if not os.path.isfile(f'/etc/ppp/peers/{interface}'): print(f'Interface {interface}: invalid!') 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 PPP interface """ check_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') def disconnect(interface): """ Disconnect PPP interface """ check_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') 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()