#!/usr/bin/env python3 # # Copyright (C) 2019-2020 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 import re from sys import exit from vyos.config import Config from vyos.util import popen, run from vyos import ConfigError from vyos import airbag airbag.enable() qat_init_script = '/etc/init.d/qat_service' def get_config(config=None): if config: conf = config else: conf = Config() data = {} if conf.exists(['system', 'acceleration', 'qat']): data.update({'qat_enable' : ''}) if conf.exists(['vpn', 'ipsec']): data.update({'ipsec' : ''}) if conf.exists(['interfaces', 'openvpn']): data.update({'openvpn' : ''}) return data def vpn_control(action, force_ipsec=False): # XXX: Should these commands report failure? if action == 'restore' and force_ipsec: return run('ipsec start') return run(f'ipsec {action}') def verify(qat): if 'qat_enable' not in qat: return # Check if QAT service installed if not os.path.exists(qat_init_script): raise ConfigError('QAT init script not found') # Check if QAT device exist output, err = popen('lspci -nn', decode='utf-8') if not err: # PCI id | Chipset # 19e2 -> C3xx # 37c8 -> C62x # 0435 -> DH895 # 6f54 -> D15xx # 18ee -> QAT_200XX data = re.findall( '(8086:19e2)|(8086:37c8)|(8086:0435)|(8086:6f54)|(8086:18ee)', output) # If QAT devices found if not data: raise ConfigError('No QAT acceleration device found') def apply(qat): # Shutdown VPN service which can use QAT if 'ipsec' in qat: vpn_control('stop') # Enable/Disable QAT service if 'qat_enable' in qat: run(f'{qat_init_script} start') else: run(f'{qat_init_script} stop') # Recover VPN service if 'ipsec' in qat: vpn_control('start') if __name__ == '__main__': try: c = get_config() verify(c) apply(c) except ConfigError as e: print(e) vpn_control('restore', force_ipsec=('ipsec' in c)) exit(1)