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- # -*- encoding: utf-8 -*-
- #
- # The Qubes OS Project, http://www.qubes-os.org
- #
- # Copyright (C) 2017 Marek Marczykowski-Górecki
- # <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, see <http://www.gnu.org/licenses/>.
- '''Extension responsible for qvm-service framework'''
- import qubes.ext
- class ServicesExtension(qubes.ext.Extension):
- '''This extension export features with 'service.' prefix to QubesDB in
- /qubes-service/ tree.
- '''
- # pylint: disable=no-self-use
- @qubes.ext.handler('domain-qdb-create')
- def on_domain_qdb_create(self, vm):
- '''Actually export features'''
- for feature, value in vm.features.items():
- if not feature.startswith('service.'):
- continue
- service = feature[len('service.'):]
- # forcefully convert to '0' or '1'
- vm.untrusted_qdb.write('/qubes-service/{}'.format(service),
- str(int(bool(value))))
- @qubes.ext.handler('domain-feature-set')
- def on_domain_feature_set(self, vm, feature, value, oldvalue=None):
- '''Update /qubes-service/ QubesDB tree in runtime'''
- # pylint: disable=unused-argument
- if not vm.is_running():
- return
- if not feature.startswith('service.'):
- return
- service = feature[len('service.'):]
- # forcefully convert to '0' or '1'
- vm.untrusted_qdb.write('/qubes-service/{}'.format(service),
- str(int(bool(value))))
- @qubes.ext.handler('domain-feature-delete')
- def on_domain_feature_delete(self, vm, feature):
- '''Update /qubes-service/ QubesDB tree in runtime'''
- if not vm.is_running():
- return
- if not feature.startswith('service.'):
- return
- service = feature[len('service.'):]
- vm.untrusted_qdb.rm('/qubes-service/{}'.format(service))
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