#!/usr/bin/python2 -O # vim: fileencoding=utf-8 # # The Qubes OS Project, http://www.qubes-os.org # # Copyright (C) 2014-2016 Wojtek Porczyk # Copyright (C) 2016 Marek Marczykowski ) # Copyright (C) 2016 Bahtiar `kalkin-` Gadimov # # 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 the AppVM implementation ''' import copy import qubes.events import qubes.vm.qubesvm from qubes.config import defaults class AppVM(qubes.vm.qubesvm.QubesVM): '''Application VM''' template = qubes.VMProperty('template', load_stage=4, vmclass=qubes.vm.templatevm.TemplateVM, ls_width=31, doc='Template, on which this AppVM is based.') def __init__(self, app, xml, template=None, **kwargs): self.volume_config = { 'root': { 'name': 'root', 'pool': 'default', 'snap_on_start': True, 'save_on_stop': False, 'rw': False, 'internal': True }, 'private': { 'name': 'private', 'pool': 'default', 'snap_on_start': False, 'save_on_stop': True, 'rw': True, 'source': None, 'size': defaults['private_img_size'], 'internal': True }, 'volatile': { 'name': 'volatile', 'pool': 'default', 'size': defaults['root_img_size'], 'internal': True, 'rw': True, }, 'kernel': { 'name': 'kernel', 'pool': 'linux-kernel', 'snap_on_start': True, 'rw': False, 'internal': True } } if template is not None: # template is only passed if the AppVM is created, in other cases we # don't need to patch the volume_config because the config is # coming from XML, already as we need it for name, conf in self.volume_config.items(): tpl_volume = template.volumes[name] conf['size'] = tpl_volume.size conf['pool'] = tpl_volume.pool has_source = ('source' in conf and conf['source'] is not None) is_snapshot = 'snap_on_start' in conf and conf['snap_on_start'] if is_snapshot and not has_source: if tpl_volume.source is not None: conf['source'] = tpl_volume.source else: conf['source'] = tpl_volume.vid for name, config in template.volume_config.items(): # in case the template vm has more volumes add them to own # config if name not in self.volume_config: self.volume_config[name] = copy.deepcopy(config) if 'vid' in self.volume_config[name]: del self.volume_config[name]['vid'] super(AppVM, self).__init__(app, xml, **kwargs) if not hasattr(template, 'template') and template is not None: self.template = template if 'source' not in self.volume_config['root']: msg = 'missing source for root volume' raise qubes.exc.QubesException(msg) @qubes.events.handler('domain-load') def on_domain_loaded(self, event): ''' When domain is loaded assert that this vm has a template. ''' # pylint: disable=unused-argument assert self.template