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#!/usr/bin/env python3
#
# Copyright (C) 2021 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/>.
# T1968: allow multiple static-routes to be configured
# T3838: rename dns-server -> name-server
import sys
from vyos.configtree import ConfigTree
if (len(sys.argv) < 1):
print("Must specify file name!")
sys.exit(1)
file_name = sys.argv[1]
with open(file_name, 'r') as f:
config_file = f.read()
base = ['service', 'dhcp-server', 'shared-network-name']
config = ConfigTree(config_file)
if not config.exists(base):
# Nothing to do
exit(0)
# Run this for every instance if 'shared-network-name'
for network in config.list_nodes(base):
base_network = base + [network]
if not config.exists(base_network + ['subnet']):
continue
# Run this for every specified 'subnet'
for subnet in config.list_nodes(base_network + ['subnet']):
base_subnet = base_network + ['subnet', subnet]
# T1968: allow multiple static-routes to be configured
if config.exists(base_subnet + ['static-route']):
prefix = config.return_value(base_subnet + ['static-route', 'destination-subnet'])
router = config.return_value(base_subnet + ['static-route', 'router'])
config.delete(base_subnet + ['static-route'])
config.set(base_subnet + ['static-route', prefix, 'next-hop'], value=router)
config.set_tag(base_subnet + ['static-route'])
# T3838: rename dns-server -> name-server
if config.exists(base_subnet + ['dns-server']):
config.rename(base_subnet + ['dns-server'], 'name-server')
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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