OpenStack Networking (Neutron)
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# Copyright 2018 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.
from unittest import mock
import fixtures
from neutron_lib.api.definitions import extra_dhcp_opt as edo_ext
from neutron.common.ovn import constants
from neutron.common.ovn import utils
from neutron.tests import base
from neutron.tests.unit import fake_resources as fakes
RESOLV_CONF_TEMPLATE = """# TEST TEST TEST
# Geneated by OVN test
nameserver 10.0.0.1
#nameserver 10.0.0.2
nameserver 10.0.0.3
nameserver foo 10.0.0.4
nameserver aef0::4
foo 10.0.0.5
"""
class TestUtils(base.BaseTestCase):
def test_get_system_dns_resolvers(self):
tempdir = self.useFixture(fixtures.TempDir()).path
resolver_file_name = tempdir + '/resolv.conf'
tmp_resolv_file = open(resolver_file_name, 'w')
tmp_resolv_file.writelines(RESOLV_CONF_TEMPLATE)
tmp_resolv_file.close()
expected_dns_resolvers = ['10.0.0.1', '10.0.0.3']
observed_dns_resolvers = utils.get_system_dns_resolvers(
resolver_file=resolver_file_name)
self.assertEqual(expected_dns_resolvers, observed_dns_resolvers)
def test_is_gateway_chassis(self):
chassis = fakes.FakeOvsdbRow.create_one_ovsdb_row(attrs={
'external_ids': {'ovn-cms-options': 'enable-chassis-as-gw'}})
non_gw_chassis_0 = fakes.FakeOvsdbRow.create_one_ovsdb_row(attrs={
'external_ids': {'ovn-cms-options': ''}})
non_gw_chassis_1 = fakes.FakeOvsdbRow.create_one_ovsdb_row(attrs={})
non_gw_chassis_2 = fakes.FakeOvsdbRow.create_one_ovsdb_row(attrs={
'external_ids': {}})
self.assertTrue(utils.is_gateway_chassis(chassis))
self.assertFalse(utils.is_gateway_chassis(non_gw_chassis_0))
self.assertFalse(utils.is_gateway_chassis(non_gw_chassis_1))
self.assertFalse(utils.is_gateway_chassis(non_gw_chassis_2))
class TestGateWayChassisValidity(base.BaseTestCase):
def setUp(self):
super(TestGateWayChassisValidity, self).setUp()
self.gw_chassis = ['host1', 'host2']
self.chassis_name = self.gw_chassis[0]
self.physnet = 'physical-nw-1'
self.chassis_physnets = {self.chassis_name: [self.physnet]}
def test_gateway_chassis_valid(self):
# Return False, since everything is valid
self.assertFalse(utils.is_gateway_chassis_invalid(
self.chassis_name, self.gw_chassis, self.physnet,
self.chassis_physnets))
def test_gateway_chassis_due_to_invalid_chassis_name(self):
# Return True since chassis is invalid
self.chassis_name = constants.OVN_GATEWAY_INVALID_CHASSIS
self.assertTrue(utils.is_gateway_chassis_invalid(
self.chassis_name, self.gw_chassis, self.physnet,
self.chassis_physnets))
def test_gateway_chassis_for_chassis_not_in_chassis_physnets(self):
# Return True since chassis is not in chassis_physnets
self.chassis_name = 'host-2'
self.assertTrue(utils.is_gateway_chassis_invalid(
self.chassis_name, self.gw_chassis, self.physnet,
self.chassis_physnets))
def test_gateway_chassis_for_undefined_physnet(self):
# Return True since physnet is not defined
self.chassis_name = 'host-1'
self.physnet = None
self.assertTrue(utils.is_gateway_chassis_invalid(
self.chassis_name, self.gw_chassis, self.physnet,
self.chassis_physnets))
def test_gateway_chassis_for_physnet_not_in_chassis_physnets(self):
# Return True since physnet is not in chassis_physnets
self.physnet = 'physical-nw-2'
self.assertTrue(utils.is_gateway_chassis_invalid(
self.chassis_name, self.gw_chassis, self.physnet,
self.chassis_physnets))
def test_gateway_chassis_for_gw_chassis_empty(self):
# Return False if gw_chassis is []
# This condition states that the chassis is valid, has valid
# physnets and there are no gw_chassis present in the system.
self.gw_chassis = []
self.assertFalse(utils.is_gateway_chassis_invalid(
self.chassis_name, self.gw_chassis, self.physnet,
self.chassis_physnets))
def test_gateway_chassis_for_chassis_not_in_gw_chassis_list(self):
# Return True since chassis_name not in gw_chassis
self.gw_chassis = ['host-2']
self.assertTrue(utils.is_gateway_chassis_invalid(
self.chassis_name, self.gw_chassis, self.physnet,
self.chassis_physnets))
class TestDHCPUtils(base.BaseTestCase):
def test_validate_port_extra_dhcp_opts_empty(self):
port = {edo_ext.EXTRADHCPOPTS: []}
result = utils.validate_port_extra_dhcp_opts(port)
self.assertFalse(result.failed)
self.assertEqual([], result.invalid_ipv4)
self.assertEqual([], result.invalid_ipv6)
def test_validate_port_extra_dhcp_opts_dhcp_disabled(self):
opt0 = {'opt_name': 'not-valid-ipv4',
'opt_value': 'joe rogan',
'ip_version': 4}
opt1 = {'opt_name': 'dhcp_disabled',
'opt_value': 'True',
'ip_version': 4}
port = {edo_ext.EXTRADHCPOPTS: [opt0, opt1]}
# Validation always succeeds if the "dhcp_disabled" option is enabled
result = utils.validate_port_extra_dhcp_opts(port)
self.assertFalse(result.failed)
self.assertEqual([], result.invalid_ipv4)
self.assertEqual([], result.invalid_ipv6)
def test_validate_port_extra_dhcp_opts(self):
opt0 = {'opt_name': 'bootfile-name',
'opt_value': 'homer_simpson.bin',
'ip_version': 4}
opt1 = {'opt_name': 'dns-server',
'opt_value': '2001:4860:4860::8888',
'ip_version': 6}
port = {edo_ext.EXTRADHCPOPTS: [opt0, opt1]}
result = utils.validate_port_extra_dhcp_opts(port)
self.assertFalse(result.failed)
self.assertEqual([], result.invalid_ipv4)
self.assertEqual([], result.invalid_ipv6)
def test_validate_port_extra_dhcp_opts_invalid(self):
# Two value options and two invalid, assert the validation
# will fail and only the invalid options will be returned as
# not supported
opt0 = {'opt_name': 'bootfile-name',
'opt_value': 'homer_simpson.bin',
'ip_version': 4}
opt1 = {'opt_name': 'dns-server',
'opt_value': '2001:4860:4860::8888',
'ip_version': 6}
opt2 = {'opt_name': 'not-valid-ipv4',
'opt_value': 'joe rogan',
'ip_version': 4}
opt3 = {'opt_name': 'not-valid-ipv6',
'opt_value': 'young jamie',
'ip_version': 6}
port = {edo_ext.EXTRADHCPOPTS: [opt0, opt1, opt2, opt3]}
result = utils.validate_port_extra_dhcp_opts(port)
self.assertTrue(result.failed)
self.assertEqual(['not-valid-ipv4'], result.invalid_ipv4)
self.assertEqual(['not-valid-ipv6'], result.invalid_ipv6)
def test_get_lsp_dhcp_opts_empty(self):
port = {edo_ext.EXTRADHCPOPTS: []}
dhcp_disabled, options = utils.get_lsp_dhcp_opts(port, 4)
self.assertFalse(dhcp_disabled)
self.assertEqual({}, options)
def test_get_lsp_dhcp_opts_empty_dhcp_disabled(self):
opt0 = {'opt_name': 'bootfile-name',
'opt_value': 'homer_simpson.bin',
'ip_version': 4}
opt1 = {'opt_name': 'dhcp_disabled',
'opt_value': 'True',
'ip_version': 4}
port = {edo_ext.EXTRADHCPOPTS: [opt0, opt1]}
# Validation always succeeds if the "dhcp_disabled" option is enabled
dhcp_disabled, options = utils.get_lsp_dhcp_opts(port, 4)
self.assertTrue(dhcp_disabled)
self.assertEqual({}, options)
@mock.patch.object(utils, 'is_network_device_port')
def test_get_lsp_dhcp_opts_is_network_device_port(self, mock_device_port):
mock_device_port.return_value = True
port = {}
dhcp_disabled, options = utils.get_lsp_dhcp_opts(port, 4)
# Assert OVN DHCP is disabled
self.assertTrue(dhcp_disabled)
self.assertEqual({}, options)
def test_get_lsp_dhcp_opts(self):
opt0 = {'opt_name': 'bootfile-name',
'opt_value': 'homer_simpson.bin',
'ip_version': 4}
opt1 = {'opt_name': 'server-ip-address',
'opt_value': '10.0.0.1',
'ip_version': 4}
opt2 = {'opt_name': '42',
'opt_value': '10.0.2.1',
'ip_version': 4}
port = {edo_ext.EXTRADHCPOPTS: [opt0, opt1, opt2]}
dhcp_disabled, options = utils.get_lsp_dhcp_opts(port, 4)
self.assertFalse(dhcp_disabled)
# Assert the names got translated to their OVN names
expected_options = {'tftp_server_address': '10.0.0.1',
'ntp_server': '10.0.2.1',
'bootfile_name': 'homer_simpson.bin'}
self.assertEqual(expected_options, options)