OpenStack Networking (Neutron)
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neutron/neutron/tests/unit/agent/linux/openvswitch_firewall/test_iptables.py

114 lines
5.1 KiB

# Copyright 2017 Red Hat, Inc.
# All Rights Reserved.
#
# 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 mock
from neutron.agent.linux import iptables_firewall
from neutron.agent.linux.openvswitch_firewall import iptables
from neutron.tests import base
class TestHelper(base.BaseTestCase):
def setUp(self):
super(TestHelper, self).setUp()
self.helper = iptables.Helper(mock.Mock())
mock.patch.object(iptables_firewall, 'cfg').start()
mock.patch('neutron.agent.linux.ip_conntrack.get_conntrack').start()
def test_get_hybrid_ports(self):
present_ports = ['tap1234', 'qvo-1234', 'tap9876', 'qvo-fghfhfh']
self.helper.int_br.get_port_name_list.return_value = present_ports
expected_hybrid_ports = ['qvo-1234', 'qvo-fghfhfh']
observed = self.helper.get_hybrid_ports()
self.assertItemsEqual(expected_hybrid_ports, observed)
def test_has_not_been_cleaned_no_value(self):
other_config = {'foo': 'bar'}
self.helper.int_br.db_get_val.return_value = other_config
self.assertTrue(self.helper.has_not_been_cleaned)
def test_has_not_been_cleaned_true(self):
other_config = {'foo': 'bar', iptables.Helper.CLEANED_METADATA: 'true'}
self.helper.int_br.db_get_val.return_value = other_config
self.assertFalse(self.helper.has_not_been_cleaned)
def test_has_not_been_cleaned_false(self):
other_config = {'foo': 'bar',
iptables.Helper.CLEANED_METADATA: 'false'}
self.helper.int_br.db_get_val.return_value = other_config
self.assertTrue(self.helper.has_not_been_cleaned)
def test_load_driver_if_needed_no_hybrid_ports(self):
self.helper.int_br.get_port_name_list.return_value = [
'tap1234', 'tap9876']
self.helper.load_driver_if_needed()
self.assertIsNone(self.helper.iptables_driver)
def test_load_driver_if_needed_hybrid_ports_cleaned(self):
"""If was cleaned, driver shouldn't be loaded."""
self.helper.int_br.get_port_name_list.return_value = [
'tap1234', 'qvo-1234', 'tap9876', 'qvo-fghfhfh']
self.helper.int_br.db_get_val.return_value = {
'foo': 'bar', iptables.Helper.CLEANED_METADATA: 'true'}
self.helper.load_driver_if_needed()
self.assertIsNone(self.helper.iptables_driver)
def test_load_driver_if_needed_hybrid_ports_not_cleaned(self):
"""If hasn't been cleaned, driver should be loaded."""
self.helper.int_br.get_port_name_list.return_value = [
'tap1234', 'qvo-1234', 'tap9876', 'qvo-fghfhfh']
self.helper.int_br.db_get_val.return_value = {'foo': 'bar'}
self.helper.load_driver_if_needed()
self.assertIsNotNone(self.helper.iptables_driver)
def test_get_iptables_driver_instance_has_correct_instance(self):
instance = iptables.get_iptables_driver_instance()
self.assertIsInstance(
instance,
iptables_firewall.OVSHybridIptablesFirewallDriver)
def test_cleanup_port_last_port_marks_cleaned(self):
self.helper.iptables_driver = mock.Mock()
self.helper.hybrid_ports = {'qvoport'}
with mock.patch.object(self.helper, 'mark_as_cleaned') as mock_mark:
self.helper.cleanup_port({'device': 'port'})
self.assertIsNone(self.helper.iptables_driver)
self.assertTrue(mock_mark.called)
def test_cleanup_port_existing_ports(self):
self.helper.iptables_driver = mock.Mock()
self.helper.hybrid_ports = {'qvoport', 'qvoanother'}
with mock.patch.object(self.helper, 'mark_as_cleaned') as mock_mark:
self.helper.cleanup_port({'device': 'port'})
self.assertIsNotNone(self.helper.iptables_driver)
self.assertFalse(mock_mark.called)
def test_cleanup_port_unknown(self):
self.helper.iptables_driver = mock.Mock()
self.helper.hybrid_ports = {'qvoanother'}
self.helper.cleanup_port({'device': 'port'})
self.assertFalse(self.helper.iptables_driver.remove_port_filter.called)
class TestHybridIptablesHelper(base.BaseTestCase):
def test_overloaded_remove_conntrack(self):
with mock.patch.object(iptables_firewall.IptablesFirewallDriver,
'_remove_conntrack_entries_from_port_deleted') as rcefpd, \
mock.patch("neutron.agent.linux.ip_conntrack.IpConntrackManager"
"._populate_initial_zone_map"):
firewall = iptables.get_iptables_driver_instance()
firewall._remove_conntrack_entries_from_port_deleted(None)
rcefpd.assert_not_called()