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Diffstat (limited to 'src/conf_mode/interfaces-wwan.py')
| -rwxr-xr-x | src/conf_mode/interfaces-wwan.py | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/src/conf_mode/interfaces-wwan.py b/src/conf_mode/interfaces-wwan.py deleted file mode 100755 index 2515dc838..000000000 --- a/src/conf_mode/interfaces-wwan.py +++ /dev/null @@ -1,189 +0,0 @@ -#!/usr/bin/env python3 -# -# Copyright (C) 2020-2022 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 sys import exit -from time import sleep - -from vyos.config import Config -from vyos.configdict import get_interface_dict -from vyos.configdict import is_node_changed -from vyos.configverify import verify_authentication -from vyos.configverify import verify_interface_exists -from vyos.configverify import verify_mirror_redirect -from vyos.configverify import verify_vrf -from vyos.ifconfig import WWANIf -from vyos.utils.dict import dict_search -from vyos.utils.process import cmd -from vyos.utils.process import call -from vyos.utils.process import DEVNULL -from vyos.utils.process import is_systemd_service_active -from vyos.utils.file import write_file -from vyos import ConfigError -from vyos import airbag -airbag.enable() - -service_name = 'ModemManager.service' -cron_script = '/etc/cron.d/vyos-wwan' - -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'] - ifname, wwan = get_interface_dict(conf, base) - - # We should only terminate the WWAN session if critical parameters change. - # All parameters that can be changed on-the-fly (like interface description) - # should not lead to a reconnect! - tmp = is_node_changed(conf, base + [ifname, 'address']) - if tmp: wwan.update({'shutdown_required': {}}) - - tmp = is_node_changed(conf, base + [ifname, 'apn']) - if tmp: wwan.update({'shutdown_required': {}}) - - tmp = is_node_changed(conf, base + [ifname, 'disable']) - if tmp: wwan.update({'shutdown_required': {}}) - - tmp = is_node_changed(conf, base + [ifname, 'vrf']) - if tmp: wwan.update({'shutdown_required': {}}) - - tmp = is_node_changed(conf, base + [ifname, 'authentication']) - if tmp: wwan.update({'shutdown_required': {}}) - - tmp = is_node_changed(conf, base + [ifname, 'ipv6', 'address', 'autoconf']) - if tmp: wwan.update({'shutdown_required': {}}) - - # We need to know the amount of other WWAN interfaces as ModemManager needs - # to be started or stopped. - wwan['other_interfaces'] = conf.get_config_dict([], key_mangling=('-', '_'), - get_first_key=True, - no_tag_node_value_mangle=True) - - # This if-clause is just to be sure - it will always evaluate to true - if ifname in wwan['other_interfaces']: - del wwan['other_interfaces'][ifname] - if len(wwan['other_interfaces']) == 0: - del wwan['other_interfaces'] - - 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) - verify_mirror_redirect(wwan) - - return None - -def generate(wwan): - if 'deleted' in wwan: - # We are the last WWAN interface - there are no other ones remaining - # thus the cronjob needs to go away, too - if 'other_interfaces' not in wwan: - if os.path.exists(cron_script): - os.unlink(cron_script) - return None - - # Install cron triggered helper script to re-dial WWAN interfaces on - # disconnect - e.g. happens during RF signal loss. The script watches every - # WWAN interface - so there is only one instance. - if not os.path.exists(cron_script): - write_file(cron_script, '*/5 * * * * root /usr/libexec/vyos/vyos-check-wwan.py\n') - - return None - -def apply(wwan): - # ModemManager is required to dial WWAN connections - one instance is - # required to serve all modems. Activate ModemManager on first invocation - # of any WWAN interface. - if not is_systemd_service_active(service_name): - cmd(f'systemctl start {service_name}') - - counter = 100 - # Wait until a modem is detected and then we can continue - while counter > 0: - counter -= 1 - tmp = cmd('mmcli -L') - if tmp != 'No modems were found': - break - sleep(0.250) - - if 'shutdown_required' in 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() - - # We are the last WWAN interface - there are no other WWAN interfaces - # remaining, thus we can stop ModemManager and free resources. - if 'other_interfaces' not in wwan: - cmd(f'systemctl stop {service_name}') - # Clean CRON helper script which is used for to re-connect when - # RF signal is lost - if os.path.exists(cron_script): - os.unlink(cron_script) - - return None - - if 'shutdown_required' in wwan: - 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={username},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) |