#!/usr/bin/env python3 # # Copyright (C) 2020 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/>. from sys import argv,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) def merge_npt(config,base,rule): merge_base = ['nat66','source','rule',rule] # Configure migration functions if config.exists(base + ['description']): tmp = config.return_value(base + ['description']) config.set(merge_base + ['description'],value=tmp) if config.exists(base + ['disable']): tmp = config.return_value(base + ['disable']) config.set(merge_base + ['disable'],value=tmp) if config.exists(base + ['outbound-interface']): tmp = config.return_value(base + ['outbound-interface']) config.set(merge_base + ['outbound-interface'],value=tmp) if config.exists(base + ['source','prefix']): tmp = config.return_value(base + ['source','prefix']) config.set(merge_base + ['source','prefix'],value=tmp) if config.exists(base + ['translation','prefix']): tmp = config.return_value(base + ['translation','prefix']) config.set(merge_base + ['translation','address'],value=tmp) if not config.exists(['nat', 'nptv6']): # Nothing to do exit(0) for rule in config.list_nodes(['nat', 'nptv6', 'rule']): base = ['nat', 'nptv6', 'rule', rule] # Merge 'nat nptv6' to 'nat66 source' merge_npt(config,base,rule) # Delete the original NPT configuration config.delete(['nat','nptv6']); 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)