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list_openvpn_clients.py
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list_openvpn_clients.py
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#!/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 = []
with open('/opt/vyatta/etc/openvpn/status/' + 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])
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))

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