#!/usr/bin/env python3 # # Copyright (C) 2020-2021 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/>. import os from sys import exit from vyos.config import Config from vyos.configdict import get_interface_dict from vyos.configverify import verify_authentication from vyos.configverify import verify_interface_exists from vyos.configverify import verify_vrf from vyos.ifconfig import WWANIf from vyos.util import cmd from vyos.util import call from vyos.util import dict_search from vyos.util import DEVNULL from vyos import ConfigError from vyos import airbag airbag.enable() def get_config(config=None): """ Retrive CLI config as dictionary. Dictionary can never be empty, as at least the interface name will be added or a deleted flag """ if config: conf = config else: conf = Config() base = ['interfaces', 'wwan'] wwan = get_interface_dict(conf, base) return wwan def verify(wwan): if 'deleted' in wwan: return None ifname = wwan['ifname'] if not 'apn' in wwan: raise ConfigError(f'No APN configured for "{ifname}"!') verify_interface_exists(ifname) verify_authentication(wwan) verify_vrf(wwan) return None def generate(wwan): return None def apply(wwan): # we only need the modem number. wwan0 -> 0, wwan1 -> 1 modem = wwan['ifname'].lstrip('wwan') base_cmd = f'mmcli --modem {modem}' # Number of bearers is limited - always disconnect first cmd(f'{base_cmd} --simple-disconnect') w = WWANIf(wwan['ifname']) if 'deleted' in wwan or 'disable' in wwan: w.remove() return None ip_type = 'ipv4' slaac = dict_search('ipv6.address.autoconf', wwan) != None if 'address' in wwan: if 'dhcp' in wwan['address'] and ('dhcpv6' in wwan['address'] or slaac): ip_type = 'ipv4v6' elif 'dhcpv6' in wwan['address'] or slaac: ip_type = 'ipv6' elif 'dhcp' in wwan['address']: ip_type = 'ipv4' options = f'ip-type={ip_type},apn=' + wwan['apn'] if 'authentication' in wwan: options += ',user={user},password={password}'.format(**wwan['authentication']) command = f'{base_cmd} --simple-connect="{options}"' call(command, stdout=DEVNULL) w.update(wwan) return None if __name__ == '__main__': try: c = get_config() verify(c) generate(c) apply(c) except ConfigError as e: print(e) exit(1)