129 lines
4.3 KiB
Python
129 lines
4.3 KiB
Python
#!/usr/bin/python2 -O
|
|
# vim: fileencoding=utf-8
|
|
#
|
|
# The Qubes OS Project, http://www.qubes-os.org
|
|
#
|
|
# Copyright (C) 2014-2016 Wojtek Porczyk <woju@invisiblethingslab.com>
|
|
# Copyright (C) 2016 Marek Marczykowski <marmarek@invisiblethingslab.com>)
|
|
#
|
|
# 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.
|
|
#
|
|
|
|
''' A disposable vm implementation '''
|
|
|
|
import qubes.vm.qubesvm
|
|
import qubes.vm.appvm
|
|
import qubes.config
|
|
|
|
class DispVM(qubes.vm.qubesvm.QubesVM):
|
|
'''Disposable VM'''
|
|
|
|
template = qubes.VMProperty('template',
|
|
load_stage=4,
|
|
vmclass=qubes.vm.appvm.AppVM,
|
|
ls_width=31,
|
|
doc='AppVM, on which this DispVM is based.')
|
|
|
|
dispid = qubes.property('dispid', type=int, write_once=True,
|
|
clone=False,
|
|
ls_width=3,
|
|
doc='''Internal, persistent identifier of particular DispVM.''')
|
|
|
|
def __init__(self, *args, **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': True,
|
|
'save_on_stop': False,
|
|
'internal': True,
|
|
'rw': True,
|
|
},
|
|
'volatile': {
|
|
'name': 'volatile',
|
|
'pool': 'default',
|
|
'internal': True,
|
|
'size': qubes.config.defaults['root_img_size'] +
|
|
qubes.config.defaults['private_img_size'],
|
|
},
|
|
'kernel': {
|
|
'name': 'kernel',
|
|
'pool': 'linux-kernel',
|
|
'snap_on_start': True,
|
|
'rw': False,
|
|
'internal': True
|
|
}
|
|
}
|
|
|
|
super(DispVM, self).__init__(*args, **kwargs)
|
|
|
|
@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
|
|
|
|
@classmethod
|
|
def from_appvm(cls, appvm, **kwargs):
|
|
'''Create a new instance from given AppVM
|
|
|
|
:param qubes.vm.appvm.AppVM appvm: template from which the VM should \
|
|
be created (could also be name or qid)
|
|
:returns: new disposable vm
|
|
|
|
*kwargs* are passed to the newly created VM
|
|
|
|
>>> import qubes.vm.dispvm.DispVM
|
|
>>> dispvm = qubes.vm.dispvm.DispVM.from_appvm(appvm).start()
|
|
>>> dispvm.run_service('qubes.VMShell', input='firefox')
|
|
>>> dispvm.cleanup()
|
|
|
|
This method modifies :file:`qubes.xml` file. In fact, the newly created
|
|
vm belongs to other :py:class:`qubes.Qubes` instance than the *app*.
|
|
The qube returned is not started.
|
|
'''
|
|
store = appvm.app.store if isinstance(appvm, qubes.vm.BaseVM) else None
|
|
app = qubes.Qubes(store)
|
|
dispvm = app.add_new_vm(
|
|
cls,
|
|
dispid=app.domains.get_new_unused_dispid(),
|
|
template=app.domains[appvm],
|
|
**kwargs)
|
|
dispvm.create_on_disk()
|
|
app.save()
|
|
return dispvm
|
|
|
|
def cleanup(self):
|
|
'''Clean up after the DispVM
|
|
|
|
This stops the disposable qube and removes it from the store.
|
|
|
|
This method modifies :file:`qubes.xml` file.
|
|
'''
|
|
app = qubes.Qubes(self.app.store)
|
|
self = app.domains[self.uuid]
|
|
self.force_shutdown()
|
|
self.remove_from_disk()
|
|
del app.domains[self]
|
|
app.save()
|