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