# Copyright 2023 VyOS maintainers and contributors <maintainers@vyos.io> # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2.1 of the License, or (at your option) any later version. # # This library 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 # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library. If not, see <http://www.gnu.org/licenses/>. import os def check_kmod(k_mod): """ Common utility function to load required kernel modules on demand """ from vyos import ConfigError from vyos.utils.process import call if isinstance(k_mod, str): k_mod = k_mod.split() for module in k_mod: if not os.path.exists(f'/sys/module/{module}'): if call(f'modprobe {module}') != 0: raise ConfigError(f'Loading Kernel module {module} failed') def unload_kmod(k_mod): """ Common utility function to unload required kernel modules on demand """ from vyos import ConfigError from vyos.utils.process import call if isinstance(k_mod, str): k_mod = k_mod.split() for module in k_mod: if os.path.exists(f'/sys/module/{module}'): if call(f'rmmod {module}') != 0: raise ConfigError(f'Unloading Kernel module {module} failed')