#!/usr/bin/env python3 # # Copyright (C) 2022 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/>. # T4257: Discussion on changing BGP autonomous system number syntax 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) # Check if BGP is even configured. Then check if local-as exists, then add the system-as, then remove the local-as. This is for global configuration. if config.exists(['protocols', 'bgp']): if config.exists(['protocols', 'bgp', 'local-as']): config.rename(['protocols', 'bgp', 'local-as'], 'system-as') # Check if vrf names are configured. Then check if local-as exists inside of a name, then add the system-as, then remove the local-as. This is for vrf configuration. if config.exists(['vrf', 'name']): for vrf in config.list_nodes(['vrf', 'name']): if config.exists(['vrf', f'name {vrf}', 'protocols', 'bgp', 'local-as']): config.rename(['vrf', f'name {vrf}', 'protocols', 'bgp', 'local-as'], 'system-as') try: with open(file_name, 'w') as f: f.write(config.to_string()) except OSError as e: print(f'Failed to save the modified config: {e}') exit(1)