#!/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/>. # A VTI interface also requires an IPSec configuration - VyOS 1.2 supported # having a VTI interface in the CLI but no IPSec configuration - drop VTI # configuration if this is the case for VyOS 1.4 import sys from vyos.configtree import ConfigTree if __name__ == '__main__': 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 = ['interfaces', 'vti'] if not config.exists(base): # Nothing to do sys.exit(0) ipsec_base = ['vpn', 'ipsec', 'site-to-site', 'peer'] for interface in config.list_nodes(base): found = False if config.exists(ipsec_base): for peer in config.list_nodes(ipsec_base): if config.exists(ipsec_base + [peer, 'vti', 'bind']): tmp = config.return_value(ipsec_base + [peer, 'vti', 'bind']) if tmp == interface: # Interface was found and we no longer need to search # for it in our IPSec peers found = True break if not found: config.delete(base + [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)