# Copyright 2015 Red Hat, 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 mock from neutron_lib import constants from neutron.tests import base from neutron_fwaas.services.firewall.service_drivers.agents.drivers.linux.l2.\ openvswitch_firewall import constants as fwaas_ovs_consts from neutron_fwaas.services.firewall.service_drivers.agents.drivers.linux.l2.\ openvswitch_firewall import firewall as ovsfw from neutron_fwaas.services.firewall.service_drivers.agents.drivers.linux.l2.\ openvswitch_firewall import rules TESTING_VLAN_TAG = 1 class TestIsValidPrefix(base.BaseTestCase): def test_valid_prefix_ipv4(self): is_valid = rules.is_valid_prefix('10.0.0.0/0') self.assertTrue(is_valid) def test_invalid_prefix_ipv4(self): is_valid = rules.is_valid_prefix('0.0.0.0/0') self.assertFalse(is_valid) def test_valid_prefix_ipv6(self): is_valid = rules.is_valid_prefix('ffff::0/0') self.assertTrue(is_valid) def test_invalid_prefix_ipv6(self): is_valid = rules.is_valid_prefix('0000:0::0/0') self.assertFalse(is_valid) is_valid = rules.is_valid_prefix('::0/0') self.assertFalse(is_valid) is_valid = rules.is_valid_prefix('::/0') self.assertFalse(is_valid) class TestCreateFlowsFromRuleAndPort(base.BaseTestCase): def setUp(self): super(TestCreateFlowsFromRuleAndPort, self).setUp() ovs_port = mock.Mock(vif_mac='00:00:00:00:00:00') ovs_port.ofport = 1 port_dict = {'device': 'port_id'} self.port = ovsfw.OFPort( port_dict, ovs_port, vlan_tag=TESTING_VLAN_TAG) self.create_flows_mock = mock.patch.object( rules, 'create_protocol_flows').start() @property def passed_flow_template(self): return self.create_flows_mock.call_args[0][1] def _test_create_flows_from_rule_and_port_helper( self, rule, expected_template): rules.create_flows_from_rule_and_port(rule, self.port) self.assertEqual(expected_template, self.passed_flow_template) def test_create_flows_from_rule_and_port_no_ip_ipv4(self): rule = { 'ethertype': constants.IPv4, 'direction': constants.INGRESS_DIRECTION, } expected_template = { 'priority': 70, 'dl_type': constants.ETHERTYPE_IP, 'reg_port': self.port.ofport, } self._test_create_flows_from_rule_and_port_helper(rule, expected_template) def test_create_flows_from_rule_and_port_src_and_dst_ipv4(self): rule = { 'ethertype': constants.IPv4, 'direction': constants.INGRESS_DIRECTION, 'source_ip_prefix': '192.168.0.0/24', 'dest_ip_prefix': '10.0.0.1/32', } expected_template = { 'priority': 70, 'dl_type': constants.ETHERTYPE_IP, 'reg_port': self.port.ofport, 'nw_src': '192.168.0.0/24', 'nw_dst': '10.0.0.1/32', } self._test_create_flows_from_rule_and_port_helper(rule, expected_template) def test_create_flows_from_rule_and_port_src_and_dst_with_zero_ipv4(self): rule = { 'ethertype': constants.IPv4, 'direction': constants.INGRESS_DIRECTION, 'source_ip_prefix': '192.168.0.0/24', 'dest_ip_prefix': '0.0.0.0/0', } expected_template = { 'priority': 70, 'dl_type': constants.ETHERTYPE_IP, 'reg_port': self.port.ofport, 'nw_src': '192.168.0.0/24', } self._test_create_flows_from_rule_and_port_helper(rule, expected_template) def test_create_flows_from_rule_and_port_no_ip_ipv6(self): rule = { 'ethertype': constants.IPv6, 'direction': constants.INGRESS_DIRECTION, } expected_template = { 'priority': 70, 'dl_type': constants.ETHERTYPE_IPV6, 'reg_port': self.port.ofport, } self._test_create_flows_from_rule_and_port_helper(rule, expected_template) def test_create_flows_from_rule_and_port_src_and_dst_ipv6(self): rule = { 'ethertype': constants.IPv6, 'direction': constants.INGRESS_DIRECTION, 'source_ip_prefix': '2001:db8:bbbb::1/64', 'dest_ip_prefix': '2001:db8:aaaa::1/64', } expected_template = { 'priority': 70, 'dl_type': constants.ETHERTYPE_IPV6, 'reg_port': self.port.ofport, 'ipv6_src': '2001:db8:bbbb::1/64', 'ipv6_dst': '2001:db8:aaaa::1/64', } self._test_create_flows_from_rule_and_port_helper(rule, expected_template) def test_create_flows_from_rule_and_port_src_and_dst_with_zero_ipv6(self): rule = { 'ethertype': constants.IPv6, 'direction': constants.INGRESS_DIRECTION, 'source_ip_prefix': '2001:db8:bbbb::1/64', 'dest_ip_prefix': '::/0', } expected_template = { 'priority': 70, 'dl_type': constants.ETHERTYPE_IPV6, 'reg_port': self.port.ofport, 'ipv6_src': '2001:db8:bbbb::1/64', } self._test_create_flows_from_rule_and_port_helper(rule, expected_template) class TestCreateProtocolFlows(base.BaseTestCase): def setUp(self): super(TestCreateProtocolFlows, self).setUp() ovs_port = mock.Mock(vif_mac='00:00:00:00:00:00') ovs_port.ofport = 1 port_dict = {'device': 'port_id'} self.port = ovsfw.OFPort( port_dict, ovs_port, vlan_tag=TESTING_VLAN_TAG) def _test_create_protocol_flows_helper(self, direction, rule, expected_flows): flow_template = {'some_settings': 'foo'} for flow in expected_flows: flow.update(flow_template) flows = rules.create_protocol_flows( direction, flow_template, self.port, rule) self.assertEqual(expected_flows, flows) def test_create_protocol_flows_ingress(self): rule = {'protocol': constants.PROTO_NUM_TCP} expected_flows = [{ 'table': fwaas_ovs_consts.FW_RULES_INGRESS_TABLE, 'actions': 'output:1', 'nw_proto': constants.PROTO_NUM_TCP }] self._test_create_protocol_flows_helper( constants.INGRESS_DIRECTION, rule, expected_flows) def test_create_protocol_flows_egress(self): rule = {'protocol': constants.PROTO_NUM_TCP} expected_flows = [{ 'table': fwaas_ovs_consts.FW_RULES_EGRESS_TABLE, 'actions': 'resubmit(,{:d})'.format( fwaas_ovs_consts.FW_ACCEPT_OR_INGRESS_TABLE), 'nw_proto': constants.PROTO_NUM_TCP, }] self._test_create_protocol_flows_helper( constants.EGRESS_DIRECTION, rule, expected_flows) def test_create_protocol_flows_no_protocol(self): rule = {} expected_flows = [{ 'table': fwaas_ovs_consts.FW_RULES_EGRESS_TABLE, 'actions': 'resubmit(,{:d})'.format( fwaas_ovs_consts.FW_ACCEPT_OR_INGRESS_TABLE), }] self._test_create_protocol_flows_helper( constants.EGRESS_DIRECTION, rule, expected_flows) def test_create_protocol_flows_icmp6(self): rule = {'ethertype': constants.IPv6, 'protocol': constants.PROTO_NUM_IPV6_ICMP} expected_flows = [{ 'table': fwaas_ovs_consts.FW_RULES_EGRESS_TABLE, 'actions': 'resubmit(,{:d})'.format( fwaas_ovs_consts.FW_ACCEPT_OR_INGRESS_TABLE), 'nw_proto': constants.PROTO_NUM_IPV6_ICMP, }] self._test_create_protocol_flows_helper( constants.EGRESS_DIRECTION, rule, expected_flows) def test_create_protocol_flows_port_range(self): rule = {'ethertype': constants.IPv4, 'protocol': constants.PROTO_NUM_TCP, 'port_range_min': 22, 'port_range_max': 23} expected_flows = [{ 'table': fwaas_ovs_consts.FW_RULES_EGRESS_TABLE, 'actions': 'resubmit(,{:d})'.format( fwaas_ovs_consts.FW_ACCEPT_OR_INGRESS_TABLE), 'nw_proto': constants.PROTO_NUM_TCP, 'tcp_dst': '0x0016/0xfffe' }] self._test_create_protocol_flows_helper( constants.EGRESS_DIRECTION, rule, expected_flows) def test_create_protocol_flows_icmp(self): rule = {'ethertype': constants.IPv4, 'protocol': constants.PROTO_NUM_ICMP, 'port_range_min': 0} expected_flows = [{ 'table': fwaas_ovs_consts.FW_RULES_EGRESS_TABLE, 'actions': 'resubmit(,{:d})'.format( fwaas_ovs_consts.FW_ACCEPT_OR_INGRESS_TABLE), 'nw_proto': constants.PROTO_NUM_ICMP, 'icmp_type': 0 }] self._test_create_protocol_flows_helper( constants.EGRESS_DIRECTION, rule, expected_flows) def test_create_protocol_flows_ipv6_icmp(self): rule = {'ethertype': constants.IPv6, 'protocol': constants.PROTO_NUM_IPV6_ICMP, 'port_range_min': 5, 'port_range_max': 0} expected_flows = [{ 'table': fwaas_ovs_consts.FW_RULES_EGRESS_TABLE, 'actions': 'resubmit(,{:d})'.format( fwaas_ovs_consts.FW_ACCEPT_OR_INGRESS_TABLE), 'nw_proto': constants.PROTO_NUM_IPV6_ICMP, 'icmp_type': 5, 'icmp_code': 0, }] self._test_create_protocol_flows_helper( constants.EGRESS_DIRECTION, rule, expected_flows) class TestCreatePortRangeFlows(base.BaseTestCase): def _test_create_port_range_flows_helper(self, expected_flows, rule): flow_template = {'some_settings': 'foo'} for flow in expected_flows: flow.update(flow_template) port_range_flows = rules.create_port_range_flows(flow_template, rule) self.assertEqual(expected_flows, port_range_flows) def test_create_port_range_flows_with_source_and_destination(self): rule = { 'protocol': constants.PROTO_NUM_TCP, 'source_port_range_min': 123, 'source_port_range_max': 124, 'port_range_min': 10, 'port_range_max': 11, } expected_flows = [ {'tcp_src': '0x007b', 'tcp_dst': '0x000a/0xfffe'}, {'tcp_src': '0x007c', 'tcp_dst': '0x000a/0xfffe'}, ] self._test_create_port_range_flows_helper(expected_flows, rule) def test_create_port_range_flows_with_source(self): rule = { 'protocol': constants.PROTO_NUM_TCP, 'source_port_range_min': 123, 'source_port_range_max': 124, } expected_flows = [ {'tcp_src': '0x007b'}, {'tcp_src': '0x007c'}, ] self._test_create_port_range_flows_helper(expected_flows, rule) def test_create_port_range_flows_with_destination(self): rule = { 'protocol': constants.PROTO_NUM_TCP, 'port_range_min': 10, 'port_range_max': 11, } expected_flows = [ {'tcp_dst': '0x000a/0xfffe'}, ] self._test_create_port_range_flows_helper(expected_flows, rule) def test_create_port_range_flows_without_port_range(self): rule = { 'protocol': constants.PROTO_NUM_TCP, } expected_flows = [] self._test_create_port_range_flows_helper(expected_flows, rule) def test_create_port_range_with_icmp_protocol(self): # NOTE: such call is prevented by create_protocols_flows rule = { 'protocol': constants.PROTO_NUM_ICMP, 'port_range_min': 10, 'port_range_max': 11, } expected_flows = [] self._test_create_port_range_flows_helper(expected_flows, rule)