#!/usr/bin/env python3 # # Copyright (C) 2019 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 sys import argparse from vyos.ifconfig import Section def get_client_from_interface(interface): clients = [] try: with open('/run/openvpn/' + interface + '.status', 'r') as f: dump = False for line in f: if line.startswith("Common Name,"): dump = True continue if line.startswith("ROUTING TABLE"): dump = False continue if dump: # client entry in this file looks like # client1,172.18.202.10:47495,2957,2851,Sat Aug 17 00:07:11 2019 # we are only interested in the client name 'client1' clients.append(line.split(',')[0]) except: pass return clients if __name__ == "__main__": parser = argparse.ArgumentParser() parser.add_argument("-i", "--interface", type=str, help="List connected clients per interface") parser.add_argument("-a", "--all", action='store_true', help="List all connected OpenVPN clients") args = parser.parse_args() clients = [] if args.interface: clients = get_client_from_interface(args.interface) elif args.all: for interface in Section.interfaces("openvpn"): clients += get_client_from_interface(interface) print(" ".join(clients))