#!/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'] config = ConfigTree(config_file) if not config.exists(base + ['shared-network-name']): # Nothing to do exit(0) # Run this for every instance if 'shared-network-name' for network in config.list_nodes(base + ['shared-network-name']): base_network = base + ['shared-network-name', 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') # T3672: ISC DHCP server only supports one failover peer if config.exists(base_subnet + ['failover']): # There can only be one failover configuration, if none is present # we add the first one if not config.exists(base + ['failover']): local = config.return_value(base_subnet + ['failover', 'local-address']) remote = config.return_value(base_subnet + ['failover', 'peer-address']) status = config.return_value(base_subnet + ['failover', 'status']) name = config.return_value(base_subnet + ['failover', 'name']) config.set(base + ['failover', 'remote'], value=remote) config.set(base + ['failover', 'source-address'], value=local) config.set(base + ['failover', 'status'], value=status) config.set(base + ['failover', 'name'], value=name) config.delete(base_subnet + ['failover']) config.set(base_subnet + ['enable-failover']) 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)