#!/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/>. # T5154: allow only one ip address per family for parameter 'listen-address' # Allow only one interface for parameter 'interface' # If more than one are specified, remove such entries import sys from vyos.configtree import ConfigTree from vyos.template import is_ipv4 from vyos.template import is_ipv6 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() config = ConfigTree(config_file) base_path = ['service', 'ntp'] if not config.exists(base_path): # Nothing to do sys.exit(0) if config.exists(base_path + ['listen-address']) and (len([addr for addr in config.return_values(base_path + ['listen-address']) if is_ipv4(addr)]) > 1): for addr in config.return_values(base_path + ['listen-address']): if is_ipv4(addr): config.delete_value(base_path + ['listen-address'], addr) if config.exists(base_path + ['listen-address']) and (len([addr for addr in config.return_values(base_path + ['listen-address']) if is_ipv6(addr)]) > 1): for addr in config.return_values(base_path + ['listen-address']): if is_ipv6(addr): config.delete_value(base_path + ['listen-address'], addr) if config.exists(base_path + ['interface']): if len(config.return_values(base_path + ['interface'])) > 1: config.delete(base_path + ['interface']) 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)) sys.exit(1)