#!/usr/bin/env python3 # # Copyright (C) 2019 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/>. # # import sys from vyos.configtree import ConfigTree if (len(sys.argv) < 1): 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) if not config.exists(['protocols', 'bgp']): # Nothing to do sys.exit(0) else: # Check if BGP is actually configured and obtain the ASN asn_list = config.list_nodes(['protocols', 'bgp']) if asn_list: # There's always just one BGP node, if any asn = asn_list[0] else: # There's actually no BGP, just its empty shell sys.exit(0) # Check if BGP scan-time parameter exist scan_time_param = ['protocols', 'bgp', asn, 'parameters', 'scan-time'] if config.exists(scan_time_param): # Delete BGP scan-time parameter config.delete(scan_time_param) else: # Do nothing sys.exit(0) # Save a new configuration file 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)