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vyos-bridge-sync.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/>.
#
# Script is used to synchronize configured bridge interfaces.
# one can add a non existing interface to a bridge group (e.g. VLAN)
# but the vlan interface itself does yet not exist. It should be added
# to the bridge automatically once it's available
import argparse
import subprocess
from sys import exit
from time import sleep
from vyos.config import Config
def subprocess_cmd(command):
process = subprocess.Popen(command,stdout=subprocess.PIPE, shell=True)
proc_stdout = process.communicate()[0].strip()
pass
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument('-i', '--interface', action='store', help='Interface name which should be added to bridge it is configured for', required=True)
args, unknownargs = parser.parse_known_args()
conf = Config()
if not conf.list_nodes('interfaces bridge'):
# no bridge interfaces exist .. bail out early
exit(0)
else:
for bridge in conf.list_nodes('interfaces bridge'):
for member_if in conf.list_nodes('interfaces bridge {} member interface'.format(bridge)):
if args.interface == member_if:
cmd = 'brctl addif "{}" "{}"'.format(bridge, args.interface)
# let interfaces etc. settle - especially required for OpenVPN bridged interfaces
sleep(4)
subprocess_cmd(cmd)
exit(0)

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