#!/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/>. # T3316: Migrate to Kea # - global-parameters will not function # - shared-network-parameters will not function # - subnet-parameters will not function # - static-mapping-parameters will not function # - host-decl-name is on by default, option removed # - ping-check no longer supported # - failover is default enabled on all subnets that exist on failover servers import sys from vyos.configtree import ConfigTree if (len(sys.argv) < 2): 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): # Nothing to do sys.exit(0) if config.exists(base + ['host-decl-name']): config.delete(base + ['host-decl-name']) if config.exists(base + ['global-parameters']): config.delete(base + ['global-parameters']) if config.exists(base + ['shared-network-name']): for network in config.list_nodes(base + ['shared-network-name']): base_network = base + ['shared-network-name', network] if config.exists(base_network + ['ping-check']): config.delete(base_network + ['ping-check']) if config.exists(base_network + ['shared-network-parameters']): config.delete(base_network +['shared-network-parameters']) 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] if config.exists(base_subnet + ['enable-failover']): config.delete(base_subnet + ['enable-failover']) if config.exists(base_subnet + ['ping-check']): config.delete(base_subnet + ['ping-check']) if config.exists(base_subnet + ['subnet-parameters']): config.delete(base_subnet + ['subnet-parameters']) if config.exists(base_subnet + ['static-mapping']): for mapping in config.list_nodes(base_subnet + ['static-mapping']): if config.exists(base_subnet + ['static-mapping', mapping, 'static-mapping-parameters']): config.delete(base_subnet + ['static-mapping', mapping, 'static-mapping-parameters']) 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)