117 lines
4.4 KiB
Python
117 lines
4.4 KiB
Python
#!/usr/bin/python2 -O
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# vim: fileencoding=utf-8
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#
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# The Qubes OS Project, http://www.qubes-os.org
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#
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# Copyright (C) 2014-2016 Wojtek Porczyk <woju@invisiblethingslab.com>
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# Copyright (C) 2016 Marek Marczykowski <marmarek@invisiblethingslab.com>)
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# Copyright (C) 2016 Bahtiar `kalkin-` Gadimov <bahtiar@gadimov.de>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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''' This module contains the AppVM implementation '''
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import copy
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import qubes.events
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import qubes.vm.qubesvm
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from qubes.config import defaults
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class AppVM(qubes.vm.qubesvm.QubesVM):
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'''Application VM'''
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template = qubes.VMProperty('template',
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load_stage=4,
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vmclass=qubes.vm.templatevm.TemplateVM,
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ls_width=31,
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doc='Template, on which this AppVM is based.')
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def __init__(self, app, xml, template=None, **kwargs):
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self.volume_config = {
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'root': {
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'name': 'root',
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'pool': 'default',
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'snap_on_start': True,
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'save_on_stop': False,
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'rw': False,
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'internal': True
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},
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'private': {
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'name': 'private',
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'pool': 'default',
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'snap_on_start': False,
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'save_on_stop': True,
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'rw': True,
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'source': None,
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'size': defaults['private_img_size'],
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'internal': True
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},
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'volatile': {
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'name': 'volatile',
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'pool': 'default',
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'size': defaults['root_img_size'],
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'internal': True,
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'rw': True,
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},
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'kernel': {
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'name': 'kernel',
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'pool': 'linux-kernel',
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'snap_on_start': True,
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'rw': False,
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'internal': True
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}
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}
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if template is not None:
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# template is only passed if the AppVM is created, in other cases we
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# don't need to patch the volume_config because the config is
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# coming from XML, already as we need it
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for name, conf in self.volume_config.items():
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tpl_volume = template.volumes[name]
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conf['size'] = tpl_volume.size
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conf['pool'] = tpl_volume.pool
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has_source = ('source' in conf and conf['source'] is not None)
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is_snapshot = 'snap_on_start' in conf and conf['snap_on_start']
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if is_snapshot and not has_source:
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if tpl_volume.source is not None:
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conf['source'] = tpl_volume.source
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else:
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conf['source'] = tpl_volume.vid
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for name, config in template.volume_config.items():
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# in case the template vm has more volumes add them to own
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# config
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if name not in self.volume_config:
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self.volume_config[name] = copy.deepcopy(config)
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if 'vid' in self.volume_config[name]:
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del self.volume_config[name]['vid']
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super(AppVM, self).__init__(app, xml, **kwargs)
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if not hasattr(template, 'template') and template is not None:
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self.template = template
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if 'source' not in self.volume_config['root']:
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msg = 'missing source for root volume'
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raise qubes.exc.QubesException(msg)
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@qubes.events.handler('domain-load')
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def on_domain_loaded(self, event):
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''' When domain is loaded assert that this vm has a template.
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''' # pylint: disable=unused-argument
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assert self.template
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