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#!/usr/bin/env python3
#
# Copyright (C) 2023 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/>.
# - move all pool to named pools
# 'start-stop' migrate to namedpool 'default-range-pool'
# 'subnet' migrate to namedpool 'default-subnet-pool'
# 'default-subnet-pool' is the next pool for 'default-range-pool'
import os
from sys import argv
from sys import exit
from vyos.configtree import ConfigTree
if len(argv) < 2:
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']
pool_base = base + ['client-ip-pool']
if not config.exists(base):
exit(0)
if not config.exists(pool_base):
exit(0)
default_pool = ''
range_pool_name = 'default-range-pool'
subnet_base_name = 'default-subnet-pool'
number = 1
subnet_pool_name = f'{subnet_base_name}-{number}'
prev_subnet_pool = subnet_pool_name
if config.exists(pool_base + ['subnet']):
default_pool = subnet_pool_name
for subnet in config.return_values(pool_base + ['subnet']):
config.set(pool_base + [subnet_pool_name, 'range'], value=subnet)
if prev_subnet_pool != subnet_pool_name:
config.set(pool_base + [prev_subnet_pool, 'next-pool'],
value=subnet_pool_name)
prev_subnet_pool = subnet_pool_name
number += 1
subnet_pool_name = f'{subnet_base_name}-{number}'
config.delete(pool_base + ['subnet'])
if config.exists(pool_base + ['start']) and config.exists(pool_base + ['stop']):
start_ip = config.return_value(pool_base + ['start'])
stop_ip = config.return_value(pool_base + ['stop'])
ip_range = f'{start_ip}-{stop_ip}'
config.delete(pool_base + ['start'])
config.delete(pool_base + ['stop'])
config.set(pool_base + [range_pool_name, 'range'], value=ip_range)
if default_pool:
config.set(pool_base + [range_pool_name, 'next-pool'],
value=default_pool)
default_pool = range_pool_name
if default_pool:
config.set(base + ['default-pool'], value=default_pool)
# format as tag node
config.set_tag(pool_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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