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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/>.
# - remove primary/secondary identifier from nameserver
import os
import sys
from sys import argv, exit
from vyos.configtree import ConfigTree
if (len(argv) < 1):
print("Must specify file name!")
exit(1)
file_name = argv[1]
with open(file_name, 'r') as f:
config_file = f.read()
config = ConfigTree(config_file)
base = ['vpn', 'l2tp', 'remote-access']
if not config.exists(base):
# Nothing to do
exit(0)
else:
# Migrate IPv4 DNS servers
dns_base = base + ['dns-servers']
if config.exists(dns_base):
for server in ['server-1', 'server-2']:
if config.exists(dns_base + [server]):
dns = config.return_value(dns_base + [server])
config.set(base + ['name-server'], value=dns, replace=False)
config.delete(dns_base)
# Migrate IPv6 DNS servers
dns_base = base + ['dnsv6-servers']
if config.exists(dns_base):
for server in config.return_values(dns_base):
config.set(base + ['name-server'], value=server, replace=False)
config.delete(dns_base)
# Migrate IPv4 WINS servers
wins_base = base + ['wins-servers']
if config.exists(wins_base):
for server in ['server-1', 'server-2']:
if config.exists(wins_base + [server]):
wins = config.return_value(wins_base + [server])
config.set(base + ['wins-server'], value=wins, replace=False)
config.delete(wins_base)
try:
with open(file_name, 'w') as f:
f.write(config.to_string())
except OSError as e:
print("Failed to save the modified config: {}".format(e))
exit(1)

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2-to-3 (2 KB)

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