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show_vpn_ra.py
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show_vpn_ra.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 re
import subprocess
# from subprocess import Popen, PIPE
# chech connection to pptp and l2tp daemon
def get_sessions():
absent_pptp = False
absent_l2tp = False
pptp_cmd = ["accel-cmd", "-p 2003", "show sessions"]
l2tp_cmd = ["accel-cmd", "-p 2004", "show sessions"]
err_pattern = "^Connection.+failed$"
# This value for chack only output header without sessions.
len_def_header = 170
# Check pptp
ret = subprocess.Popen(pptp_cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
(output, err) = ret.communicate()
if not err and len(output.decode("utf-8")) > len_def_header and not re.search(err_pattern, output.decode("utf-8")):
print(output.decode("utf-8"))
else:
absent_pptp = True
# Check l2tp
ret = subprocess.Popen(l2tp_cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
(output, err) = ret.communicate()
if not err and len(output.decode("utf-8")) > len_def_header and not re.search(err_pattern, output.decode("utf-8")):
print(output.decode("utf-8"))
else:
absent_l2tp = True
if absent_l2tp and absent_pptp:
print("No active remote access VPN sessions")
def main():
get_sessions()
if __name__ == '__main__':
main()

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