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- #!/usr/bin/python2
- # -*- encoding: utf8 -*-
- #
- # The Qubes OS Project, http://www.qubes-os.org
- #
- # Copyright (C) 2010-2015 Joanna Rutkowska <joanna@invisiblethingslab.com>
- # Copyright (C) 2015 Wojtek Porczyk <woju@invisiblethingslab.com>
- # Copyright (C) 2016 Bahtiar `kalkin-` Gadimov <bahtiar@gadimov.de>
- #
- # This program is free software; you can redistribute it and/or modify
- # it under the terms of the GNU General Public License as published by
- # the Free Software Foundation; either version 2 of the License, or
- # (at your option) any later version.
- #
- # 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, write to the Free Software Foundation, Inc.,
- # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- #
- ''' This module contains pool implementations for different OS kernels. '''
- import os
- from qubes.storage import Pool, StoragePoolException, Volume
- class LinuxModules(Volume):
- ''' A volume representing a ro linux kernel '''
- rw = False
- def __init__(self, target_dir, kernel_version, **kwargs):
- kwargs['vid'] = kernel_version
- super(LinuxModules, self).__init__(**kwargs)
- self.kernels_dir = os.path.join(target_dir, kernel_version)
- self.path = os.path.join(self.kernels_dir, 'modules.img')
- self.vmlinuz = os.path.join(self.kernels_dir, 'vmlinuz')
- self.initramfs = os.path.join(self.kernels_dir, 'initramfs')
- class LinuxKernel(Pool):
- ''' Provides linux kernels '''
- driver = 'linux-kernel'
- def __init__(self, name=None, dir_path=None):
- assert dir_path, 'Missing dir_path'
- super(LinuxKernel, self).__init__(name=name)
- self.dir_path = dir_path
- def init_volume(self, vm, volume_config):
- assert 'volume_type' in volume_config, "Volume type missing " \
- + str(volume_config)
- volume_type = volume_config['volume_type']
- if volume_type != 'read-only':
- raise StoragePoolException("Unknown volume type " + volume_type)
- volume = LinuxModules(self.dir_path, vm.kernel, **volume_config)
- _check_path(volume.path)
- _check_path(volume.vmlinuz)
- _check_path(volume.initramfs)
- return volume
- def clone(self, source, target):
- return target
- def create(self, volume, source_volume):
- return volume
- def commit_template_changes(self, volume):
- return volume
- @property
- def config(self):
- return {
- 'name': self.name,
- 'dir_path': self.dir_path,
- 'driver': LinuxKernel.driver,
- }
- def destroy(self):
- pass
- def remove(self, volume):
- pass
- def rename(self, volume, old_name, new_name):
- return volume
- def setup(self):
- pass
- def start(self, volume):
- path = volume.path
- if not os.path.exists(path):
- raise StoragePoolException('Missing kernel modules: %s' % path)
- return volume
- def stop(self, volume):
- pass
- @property
- def volumes(self):
- ''' Return all known kernel volumes '''
- return [LinuxModules(self.dir_path,
- kernel_version,
- pool=self.name,
- name=kernel_version,
- volume_type='read-only')
- for kernel_version in os.listdir(self.dir_path)]
- def _check_path(path):
- ''' Raise an :py:class:`qubes.storage.StoragePoolException` if ``path`` does
- not exist.
- '''
- if not os.path.exists(path):
- raise StoragePoolException('Missing file: %s' % path)
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