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# Copyright 2015 Rackspace Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import fixtures
import logging
import os
import sys
from oslo_config import fixture as cfg_fixture
from oslo_privsep import priv_context
LOG = logging.getLogger(__name__)
class UnprivilegedPrivsepFixture(fixtures.Fixture):
def __init__(self, context, config_override):
self.context = context
self.config_override = config_override
def setUp(self):
super().setUp()
self.conf = self.useFixture(cfg_fixture.Config()).conf
self.conf.set_override('capabilities', [],
group=self.context.cfg_section)
for k in ('user', 'group'):
self.conf.set_override(
k, None, group=self.context.cfg_section)
for k, v in self.config_override.items():
self.conf.set_override(k, v, group='privsep')
orig_pid = os.getpid()
try:
self.context.start(method=priv_context.Method.FORK)
except Exception as e:
# py3 unittest/testtools/something catches fatal
# exceptions from child processes and tries to treat them
# like regular non-fatal test failures. Here we attempt
# to undo that.
if os.getpid() == orig_pid:
raise
LOG.exception(e)
sys.exit(1)
self.addCleanup(self.context.stop)
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