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#!/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 sys
import argparse
import json
from vyos.config import Config
from vyos.util import commit_in_progress
from vyos.util import popen
from vyos.util import run
from vyos.util import DEVNULL
from tabulate import tabulate
occtl = '/usr/bin/occtl'
occtl_socket = '/run/ocserv/occtl.socket'
def show_sessions():
out, code = popen("sudo {0} -j -s {1} show users".format(occtl, occtl_socket),stderr=DEVNULL)
if code:
sys.exit('Cannot get openconnect users information')
else:
headers = ["interface", "username", "ip", "remote IP", "RX", "TX", "state", "uptime"]
sessions = json.loads(out)
ses_list = []
for ses in sessions:
ses_list.append([ses["Device"], ses["Username"], ses["IPv4"], ses["Remote IP"], ses["_RX"], ses["_TX"], ses["State"], ses["_Connected at"]])
if len(ses_list) > 0:
print(tabulate(ses_list, headers))
else:
print("No active openconnect sessions")
def is_ocserv_configured():
if not Config().exists_effective('vpn openconnect'):
print("vpn openconnect server is not configured")
sys.exit(1)
def main():
#parese args
parser = argparse.ArgumentParser()
parser.add_argument('--action', help='Control action', required=True)
parser.add_argument('--selector', help='Selector username|ifname|sid', required=False)
parser.add_argument('--target', help='Target must contain username|ifname|sid', required=False)
args = parser.parse_args()
# Check is Openconnect server configured
is_ocserv_configured()
if commit_in_progress():
print('Cannot restart openconnect while a commit is in progress')
exit(1)
if args.action == "restart":
run("sudo systemctl restart ocserv.service")
sys.exit(0)
elif args.action == "show_sessions":
show_sessions()
if __name__ == '__main__':
main()
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