#!/usr/bin/env python3 # # Copyright (C) 2018-2022 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/>. from sys import exit from vyos.config import Config from vyos.configdict import node_changed from vyos.util import call from vyos import ConfigError from vyos import airbag airbag.enable() def get_config(config=None): if config: conf = config else: conf = Config() base = ['protocols', 'static', 'arp'] arp = conf.get_config_dict(base, get_first_key=True) if 'interface' in arp: for interface in arp['interface']: tmp = node_changed(conf, base + ['interface', interface, 'address'], recursive=True) if tmp: arp['interface'][interface].update({'address_old' : tmp}) return arp def verify(arp): pass def generate(arp): pass def apply(arp): if not arp: return None if 'interface' in arp: for interface, interface_config in arp['interface'].items(): # Delete old static ARP assignments first if 'address_old' in interface_config: for address in interface_config['address_old']: call(f'ip neigh del {address} dev {interface}') # Add new static ARP entries to interface if 'address' not in interface_config: continue for address, address_config in interface_config['address'].items(): mac = address_config['mac'] call(f'ip neigh add {address} lladdr {mac} dev {interface}') if __name__ == '__main__': try: c = get_config() verify(c) generate(c) apply(c) except ConfigError as e: print(e) exit(1)