Source code for qubes.ext.core_features

# -*- encoding: utf8 -*-
#
# The Qubes OS Project, http://www.qubes-os.org
#
# Copyright (C) 2017 Marek Marczykowski-Górecki
#                               <[email protected]>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, see <https://www.gnu.org/licenses/>.
import asyncio

import qubes.ext

[docs]class CoreFeatures(qubes.ext.Extension): # pylint: disable=too-few-public-methods @qubes.ext.handler('features-request') @asyncio.coroutine def qubes_features_request(self, vm, event, untrusted_features): '''Handle features provided by qubes-core-agent and qubes-gui-agent''' # pylint: disable=no-self-use,unused-argument if getattr(vm, 'template', None): vm.log.warning( 'Ignoring qubes.NotifyTools for template-based VM') return requested_features = {} for feature in ('qrexec', 'gui', 'gui-emulated', 'qubes-firewall'): untrusted_value = untrusted_features.get(feature, None) if untrusted_value in ('1', '0'): requested_features[feature] = bool(int(untrusted_value)) del untrusted_features # default user for qvm-run etc # starting with Qubes 4.x ignored # qrexec agent presence (0 or 1) # gui agent presence (0 or 1) qrexec_before = vm.features.get('qrexec', False) for feature in ('qrexec', 'gui', 'gui-emulated'): # do not allow (Template)VM to override setting if already set # some other way if feature in requested_features and feature not in vm.features: vm.features[feature] = requested_features[feature] # those features can be freely enabled or disabled by template for feature in ('qubes-firewall',): if feature in requested_features: vm.features[feature] = requested_features[feature] if not qrexec_before and vm.features.get('qrexec', False): # if this is the first time qrexec was advertised, now can finish # template setup yield from vm.fire_event_async('template-postinstall')