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vyos-netplug-dhcp-client
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vyos-netplug-dhcp-client
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#!/usr/bin/env python3
#
# Copyright 2023 VyOS maintainers and contributors <maintainers@vyos.io>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library. If not, see <http://www.gnu.org/licenses/>.
import sys
from time import sleep
from vyos.configquery import ConfigTreeQuery
from vyos.ifconfig import Section
from vyos.utils.boot import boot_configuration_complete
from vyos.utils.commit import commit_in_progress
from vyos.utils.process import call
from vyos import airbag
airbag.enable()
if len(sys.argv) < 3:
airbag.noteworthy("Must specify both interface and link status!")
sys.exit(1)
if not boot_configuration_complete():
airbag.noteworthy("System bootup not yet finished...")
sys.exit(1)
while commit_in_progress():
sleep(1)
interface = sys.argv[1]
in_out = sys.argv[2]
config = ConfigTreeQuery()
interface_path = ['interfaces'] + Section.get_config_path(interface).split()
for _, interface_config in config.get_config_dict(interface_path).items():
# Bail out early if we do not have an IP address configured
if 'address' not in interface_config:
continue
# Bail out early if interface ist administrative down
if 'disable' in interface_config:
continue
systemd_action = 'start'
if in_out == 'out':
systemd_action = 'stop'
# Start/Stop DHCP service
if 'dhcp' in interface_config['address']:
call(f'systemctl {systemd_action} dhclient@{interface}.service')
# Start/Stop DHCPv6 service
if 'dhcpv6' in interface_config['address']:
call(f'systemctl {systemd_action} dhcp6c@{interface}.service')

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