#!/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/>. import os from ipaddress import ip_interface from ipaddress import ip_address from sys import exit, argv from vyos.configtree import ConfigTree from vyos.template import is_ipv4 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() base = ['protocols', 'static', 'arp'] tmp_base = ['protocols', 'static', 'arp-tmp'] config = ConfigTree(config_file) def fixup_cli(config, path, interface): if config.exists(path + ['address']): for address in config.return_values(path + ['address']): tmp = ip_interface(address) # ARP is only available for IPv4 ;-) if not is_ipv4(tmp): continue if ip_address(host) in tmp.network.hosts(): mac = config.return_value(tmp_base + [host, 'hwaddr']) iface_path = ['protocols', 'static', 'arp', 'interface'] config.set(iface_path + [interface, 'address', host, 'mac'], value=mac) config.set_tag(iface_path) config.set_tag(iface_path + [interface, 'address']) continue if not config.exists(base): # Nothing to do exit(0) # We need a temporary copy of the config tree as the original one needs to be # deleted first due to a change iun thge tagNode structure. config.copy(base, tmp_base) config.delete(base) for host in config.list_nodes(tmp_base): for type in config.list_nodes(['interfaces']): for interface in config.list_nodes(['interfaces', type]): if_base = ['interfaces', type, interface] fixup_cli(config, if_base, interface) if config.exists(if_base + ['vif']): for vif in config.list_nodes(if_base + ['vif']): vif_base = ['interfaces', type, interface, 'vif', vif] fixup_cli(config, vif_base, f'{interface}.{vif}') if config.exists(if_base + ['vif-s']): for vif_s in config.list_nodes(if_base + ['vif-s']): vif_s_base = ['interfaces', type, interface, 'vif-s', vif_s] fixup_cli(config, vif_s_base, f'{interface}.{vif_s}') if config.exists(if_base + ['vif-s', vif_s, 'vif-c']): for vif_c in config.list_nodes(if_base + ['vif-s', vif_s, 'vif-c']): vif_c_base = ['interfaces', type, interface, 'vif-s', vif_s, 'vif-c', vif_c] fixup_cli(config, vif_c_base, f'{interface}.{vif_s}.{vif_c}') config.delete(tmp_base) 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)