# vim: tabstop=4 shiftwidth=4 softtabstop=4 # # Copyright 2012, Nachi Ueno, NTT MCL, 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 copy import mock from oslo.config import cfg from neutron.agent.common import config as a_cfg from neutron.agent.linux import iptables_firewall from neutron.common import constants from neutron.tests import base from neutron.tests.unit import test_api_v2 _uuid = test_api_v2._uuid FAKE_PREFIX = {'IPv4': '10.0.0.0/24', 'IPv6': 'fe80::/48'} FAKE_IP = {'IPv4': '10.0.0.1', 'IPv6': 'fe80::1'} class IptablesFirewallTestCase(base.BaseTestCase): def setUp(self): super(IptablesFirewallTestCase, self).setUp() cfg.CONF.register_opts(a_cfg.ROOT_HELPER_OPTS, 'AGENT') self.utils_exec_p = mock.patch( 'neutron.agent.linux.utils.execute') self.utils_exec = self.utils_exec_p.start() self.iptables_cls_p = mock.patch( 'neutron.agent.linux.iptables_manager.IptablesManager') iptables_cls = self.iptables_cls_p.start() self.iptables_inst = mock.Mock() self.v4filter_inst = mock.Mock() self.v6filter_inst = mock.Mock() self.iptables_inst.ipv4 = {'filter': self.v4filter_inst} self.iptables_inst.ipv6 = {'filter': self.v6filter_inst} iptables_cls.return_value = self.iptables_inst self.firewall = iptables_firewall.IptablesFirewallDriver() self.firewall.iptables = self.iptables_inst def _fake_port(self): return {'device': 'tapfake_dev', 'mac_address': 'ff:ff:ff:ff:ff:ff', 'fixed_ips': [FAKE_IP['IPv4'], FAKE_IP['IPv6']]} def test_prepare_port_filter_with_no_sg(self): port = self._fake_port() self.firewall.prepare_port_filter(port) calls = [mock.call.add_chain('sg-fallback'), mock.call.add_rule('sg-fallback', '-j DROP'), mock.call.ensure_remove_chain('sg-chain'), mock.call.add_chain('sg-chain'), mock.call.add_chain('ifake_dev'), mock.call.add_rule('FORWARD', '-m physdev --physdev-out tapfake_dev ' '--physdev-is-bridged ' '-j $sg-chain'), mock.call.add_rule('sg-chain', '-m physdev --physdev-out tapfake_dev ' '--physdev-is-bridged ' '-j $ifake_dev'), mock.call.add_rule( 'ifake_dev', '-m state --state INVALID -j DROP'), mock.call.add_rule( 'ifake_dev', '-m state --state RELATED,ESTABLISHED -j RETURN'), mock.call.add_rule('ifake_dev', '-j $sg-fallback'), mock.call.add_chain('ofake_dev'), mock.call.add_rule('FORWARD', '-m physdev --physdev-in tapfake_dev ' '--physdev-is-bridged ' '-j $sg-chain'), mock.call.add_rule('sg-chain', '-m physdev --physdev-in tapfake_dev ' '--physdev-is-bridged ' '-j $ofake_dev'), mock.call.add_rule('INPUT', '-m physdev --physdev-in tapfake_dev ' '--physdev-is-bridged ' '-j $ofake_dev'), mock.call.add_chain('sfake_dev'), mock.call.add_rule( 'sfake_dev', '-m mac --mac-source ff:ff:ff:ff:ff:ff ' '-s 10.0.0.1 -j RETURN'), mock.call.add_rule('sfake_dev', '-j DROP'), mock.call.add_rule( 'ofake_dev', '-p udp -m udp --sport 68 --dport 67 -j RETURN'), mock.call.add_rule('ofake_dev', '-j $sfake_dev'), mock.call.add_rule( 'ofake_dev', '-p udp -m udp --sport 67 --dport 68 -j DROP'), mock.call.add_rule( 'ofake_dev', '-m state --state INVALID -j DROP'), mock.call.add_rule( 'ofake_dev', '-m state --state RELATED,ESTABLISHED -j RETURN'), mock.call.add_rule('ofake_dev', '-j $sg-fallback'), mock.call.add_rule('sg-chain', '-j ACCEPT')] self.v4filter_inst.assert_has_calls(calls) def test_filter_ipv4_ingress(self): rule = {'ethertype': 'IPv4', 'direction': 'ingress'} ingress = mock.call.add_rule('ifake_dev', '-j RETURN') egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_ingress_prefix(self): prefix = FAKE_PREFIX['IPv4'] rule = {'ethertype': 'IPv4', 'direction': 'ingress', 'source_ip_prefix': prefix} ingress = mock.call.add_rule('ifake_dev', '-s %s -j RETURN' % prefix) egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_ingress_tcp(self): rule = {'ethertype': 'IPv4', 'direction': 'ingress', 'protocol': 'tcp'} ingress = mock.call.add_rule('ifake_dev', '-p tcp -m tcp -j RETURN') egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_ingress_tcp_prefix(self): prefix = FAKE_PREFIX['IPv4'] rule = {'ethertype': 'IPv4', 'direction': 'ingress', 'protocol': 'tcp', 'source_ip_prefix': prefix} ingress = mock.call.add_rule('ifake_dev', '-s %s -p tcp -m tcp -j RETURN' % prefix) egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_ingress_icmp(self): rule = {'ethertype': 'IPv4', 'direction': 'ingress', 'protocol': 'icmp'} ingress = mock.call.add_rule('ifake_dev', '-p icmp -j RETURN') egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_ingress_icmp_prefix(self): prefix = FAKE_PREFIX['IPv4'] rule = {'ethertype': 'IPv4', 'direction': 'ingress', 'protocol': 'icmp', 'source_ip_prefix': prefix} ingress = mock.call.add_rule( 'ifake_dev', '-s %s -p icmp -j RETURN' % prefix) egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_ingress_tcp_port(self): rule = {'ethertype': 'IPv4', 'direction': 'ingress', 'protocol': 'tcp', 'port_range_min': 10, 'port_range_max': 10} ingress = mock.call.add_rule('ifake_dev', '-p tcp -m tcp --dport 10 -j RETURN') egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_ingress_tcp_mport(self): rule = {'ethertype': 'IPv4', 'direction': 'ingress', 'protocol': 'tcp', 'port_range_min': 10, 'port_range_max': 100} ingress = mock.call.add_rule( 'ifake_dev', '-p tcp -m tcp -m multiport --dports 10:100 -j RETURN') egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_ingress_tcp_mport_prefix(self): prefix = FAKE_PREFIX['IPv4'] rule = {'ethertype': 'IPv4', 'direction': 'ingress', 'protocol': 'tcp', 'port_range_min': 10, 'port_range_max': 100, 'source_ip_prefix': prefix} ingress = mock.call.add_rule( 'ifake_dev', '-s %s -p tcp -m tcp -m multiport --dports 10:100 ' '-j RETURN' % prefix) egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_ingress_udp(self): rule = {'ethertype': 'IPv4', 'direction': 'ingress', 'protocol': 'udp'} ingress = mock.call.add_rule('ifake_dev', '-p udp -m udp -j RETURN') egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_ingress_udp_prefix(self): prefix = FAKE_PREFIX['IPv4'] rule = {'ethertype': 'IPv4', 'direction': 'ingress', 'protocol': 'udp', 'source_ip_prefix': prefix} ingress = mock.call.add_rule('ifake_dev', '-s %s -p udp -m udp -j RETURN' % prefix) egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_ingress_udp_port(self): rule = {'ethertype': 'IPv4', 'direction': 'ingress', 'protocol': 'udp', 'port_range_min': 10, 'port_range_max': 10} ingress = mock.call.add_rule('ifake_dev', '-p udp -m udp --dport 10 -j RETURN') egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_ingress_udp_mport(self): rule = {'ethertype': 'IPv4', 'direction': 'ingress', 'protocol': 'udp', 'port_range_min': 10, 'port_range_max': 100} ingress = mock.call.add_rule( 'ifake_dev', '-p udp -m udp -m multiport --dports 10:100 -j RETURN') egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_ingress_udp_mport_prefix(self): prefix = FAKE_PREFIX['IPv4'] rule = {'ethertype': 'IPv4', 'direction': 'ingress', 'protocol': 'udp', 'port_range_min': 10, 'port_range_max': 100, 'source_ip_prefix': prefix} ingress = mock.call.add_rule( 'ifake_dev', '-s %s -p udp -m udp -m multiport --dports 10:100 ' '-j RETURN' % prefix) egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_egress(self): rule = {'ethertype': 'IPv4', 'direction': 'egress'} egress = mock.call.add_rule('ofake_dev', '-j RETURN') ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_egress_prefix(self): prefix = FAKE_PREFIX['IPv4'] rule = {'ethertype': 'IPv4', 'direction': 'egress', 'source_ip_prefix': prefix} egress = mock.call.add_rule('ofake_dev', '-s %s -j RETURN' % prefix) ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_egress_tcp(self): rule = {'ethertype': 'IPv4', 'direction': 'egress', 'protocol': 'tcp'} egress = mock.call.add_rule('ofake_dev', '-p tcp -m tcp -j RETURN') ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_egress_tcp_prefix(self): prefix = FAKE_PREFIX['IPv4'] rule = {'ethertype': 'IPv4', 'direction': 'egress', 'protocol': 'tcp', 'source_ip_prefix': prefix} egress = mock.call.add_rule('ofake_dev', '-s %s -p tcp -m tcp -j RETURN' % prefix) ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_egress_icmp(self): rule = {'ethertype': 'IPv4', 'direction': 'egress', 'protocol': 'icmp'} egress = mock.call.add_rule('ofake_dev', '-p icmp -j RETURN') ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_egress_icmp_prefix(self): prefix = FAKE_PREFIX['IPv4'] rule = {'ethertype': 'IPv4', 'direction': 'egress', 'protocol': 'icmp', 'source_ip_prefix': prefix} egress = mock.call.add_rule( 'ofake_dev', '-s %s -p icmp -j RETURN' % prefix) ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_egress_icmp_type(self): prefix = FAKE_PREFIX['IPv4'] rule = {'ethertype': 'IPv4', 'direction': 'egress', 'protocol': 'icmp', 'source_port_range_min': 8, 'source_ip_prefix': prefix} egress = mock.call.add_rule( 'ofake_dev', '-s %s -p icmp --icmp-type 8 -j RETURN' % prefix) ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_egress_icmp_type_name(self): prefix = FAKE_PREFIX['IPv4'] rule = {'ethertype': 'IPv4', 'direction': 'egress', 'protocol': 'icmp', 'source_port_range_min': 'echo-request', 'source_ip_prefix': prefix} egress = mock.call.add_rule( 'ofake_dev', '-s %s -p icmp --icmp-type echo-request -j RETURN' % prefix) ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_egress_icmp_type_code(self): prefix = FAKE_PREFIX['IPv4'] rule = {'ethertype': 'IPv4', 'direction': 'egress', 'protocol': 'icmp', 'source_port_range_min': 8, 'source_port_range_max': 0, 'source_ip_prefix': prefix} egress = mock.call.add_rule( 'ofake_dev', '-s %s -p icmp --icmp-type 8/0 -j RETURN' % prefix) ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_egress_tcp_port(self): rule = {'ethertype': 'IPv4', 'direction': 'egress', 'protocol': 'tcp', 'port_range_min': 10, 'port_range_max': 10} egress = mock.call.add_rule('ofake_dev', '-p tcp -m tcp --dport 10 -j RETURN') ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_egress_tcp_mport(self): rule = {'ethertype': 'IPv4', 'direction': 'egress', 'protocol': 'tcp', 'port_range_min': 10, 'port_range_max': 100} egress = mock.call.add_rule( 'ofake_dev', '-p tcp -m tcp -m multiport --dports 10:100 -j RETURN') ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_egress_tcp_mport_prefix(self): prefix = FAKE_PREFIX['IPv4'] rule = {'ethertype': 'IPv4', 'direction': 'egress', 'protocol': 'tcp', 'port_range_min': 10, 'port_range_max': 100, 'source_ip_prefix': prefix} egress = mock.call.add_rule( 'ofake_dev', '-s %s -p tcp -m tcp -m multiport --dports 10:100 ' '-j RETURN' % prefix) ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_egress_udp(self): rule = {'ethertype': 'IPv4', 'direction': 'egress', 'protocol': 'udp'} egress = mock.call.add_rule('ofake_dev', '-p udp -m udp -j RETURN') ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_egress_udp_prefix(self): prefix = FAKE_PREFIX['IPv4'] rule = {'ethertype': 'IPv4', 'direction': 'egress', 'protocol': 'udp', 'source_ip_prefix': prefix} egress = mock.call.add_rule('ofake_dev', '-s %s -p udp -m udp -j RETURN' % prefix) ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_egress_udp_port(self): rule = {'ethertype': 'IPv4', 'direction': 'egress', 'protocol': 'udp', 'port_range_min': 10, 'port_range_max': 10} egress = mock.call.add_rule('ofake_dev', '-p udp -m udp --dport 10 -j RETURN') ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_egress_udp_mport(self): rule = {'ethertype': 'IPv4', 'direction': 'egress', 'protocol': 'udp', 'port_range_min': 10, 'port_range_max': 100} egress = mock.call.add_rule( 'ofake_dev', '-p udp -m udp -m multiport --dports 10:100 -j RETURN') ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv4_egress_udp_mport_prefix(self): prefix = FAKE_PREFIX['IPv4'] rule = {'ethertype': 'IPv4', 'direction': 'egress', 'protocol': 'udp', 'port_range_min': 10, 'port_range_max': 100, 'source_ip_prefix': prefix} egress = mock.call.add_rule( 'ofake_dev', '-s %s -p udp -m udp -m multiport --dports 10:100 ' '-j RETURN' % prefix) ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_ingress(self): rule = {'ethertype': 'IPv6', 'direction': 'ingress'} ingress = mock.call.add_rule('ifake_dev', '-j RETURN') egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_ingress_prefix(self): prefix = FAKE_PREFIX['IPv6'] rule = {'ethertype': 'IPv6', 'direction': 'ingress', 'source_ip_prefix': prefix} ingress = mock.call.add_rule('ifake_dev', '-s %s -j RETURN' % prefix) egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_ingress_tcp(self): rule = {'ethertype': 'IPv6', 'direction': 'ingress', 'protocol': 'tcp'} ingress = mock.call.add_rule('ifake_dev', '-p tcp -m tcp -j RETURN') egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_ingress_tcp_prefix(self): prefix = FAKE_PREFIX['IPv6'] rule = {'ethertype': 'IPv6', 'direction': 'ingress', 'protocol': 'tcp', 'source_ip_prefix': prefix} ingress = mock.call.add_rule('ifake_dev', '-s %s -p tcp -m tcp -j RETURN' % prefix) egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_ingress_tcp_port(self): rule = {'ethertype': 'IPv6', 'direction': 'ingress', 'protocol': 'tcp', 'port_range_min': 10, 'port_range_max': 10} ingress = mock.call.add_rule('ifake_dev', '-p tcp -m tcp --dport 10 -j RETURN') egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_ingress_icmp(self): rule = {'ethertype': 'IPv6', 'direction': 'ingress', 'protocol': 'icmp'} ingress = mock.call.add_rule('ifake_dev', '-p icmpv6 -j RETURN') egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_ingress_icmp_prefix(self): prefix = FAKE_PREFIX['IPv6'] rule = {'ethertype': 'IPv6', 'direction': 'ingress', 'protocol': 'icmp', 'source_ip_prefix': prefix} ingress = mock.call.add_rule( 'ifake_dev', '-s %s -p icmpv6 -j RETURN' % prefix) egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_ingress_tcp_mport(self): rule = {'ethertype': 'IPv6', 'direction': 'ingress', 'protocol': 'tcp', 'port_range_min': 10, 'port_range_max': 100} ingress = mock.call.add_rule( 'ifake_dev', '-p tcp -m tcp -m multiport --dports 10:100 -j RETURN') egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_ingress_tcp_mport_prefix(self): prefix = FAKE_PREFIX['IPv6'] rule = {'ethertype': 'IPv6', 'direction': 'ingress', 'protocol': 'tcp', 'port_range_min': 10, 'port_range_max': 100, 'source_ip_prefix': prefix} ingress = mock.call.add_rule( 'ifake_dev', '-s %s -p tcp -m tcp -m multiport --dports 10:100 ' '-j RETURN' % prefix) egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_ingress_udp(self): rule = {'ethertype': 'IPv6', 'direction': 'ingress', 'protocol': 'udp'} ingress = mock.call.add_rule('ifake_dev', '-p udp -m udp -j RETURN') egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_ingress_udp_prefix(self): prefix = FAKE_PREFIX['IPv6'] rule = {'ethertype': 'IPv6', 'direction': 'ingress', 'protocol': 'udp', 'source_ip_prefix': prefix} ingress = mock.call.add_rule('ifake_dev', '-s %s -p udp -m udp -j RETURN' % prefix) egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_ingress_udp_port(self): rule = {'ethertype': 'IPv6', 'direction': 'ingress', 'protocol': 'udp', 'port_range_min': 10, 'port_range_max': 10} ingress = mock.call.add_rule('ifake_dev', '-p udp -m udp --dport 10 -j RETURN') egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_ingress_udp_mport(self): rule = {'ethertype': 'IPv6', 'direction': 'ingress', 'protocol': 'udp', 'port_range_min': 10, 'port_range_max': 100} ingress = mock.call.add_rule( 'ifake_dev', '-p udp -m udp -m multiport --dports 10:100 -j RETURN') egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_ingress_udp_mport_prefix(self): prefix = FAKE_PREFIX['IPv6'] rule = {'ethertype': 'IPv6', 'direction': 'ingress', 'protocol': 'udp', 'port_range_min': 10, 'port_range_max': 100, 'source_ip_prefix': prefix} ingress = mock.call.add_rule( 'ifake_dev', '-s %s -p udp -m udp -m multiport --dports 10:100 ' '-j RETURN' % prefix) egress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_egress(self): rule = {'ethertype': 'IPv6', 'direction': 'egress'} egress = mock.call.add_rule('ofake_dev', '-j RETURN') ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_egress_prefix(self): prefix = FAKE_PREFIX['IPv6'] rule = {'ethertype': 'IPv6', 'direction': 'egress', 'source_ip_prefix': prefix} egress = mock.call.add_rule('ofake_dev', '-s %s -j RETURN' % prefix) ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_egress_tcp(self): rule = {'ethertype': 'IPv6', 'direction': 'egress', 'protocol': 'tcp'} egress = mock.call.add_rule('ofake_dev', '-p tcp -m tcp -j RETURN') ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_egress_tcp_prefix(self): prefix = FAKE_PREFIX['IPv6'] rule = {'ethertype': 'IPv6', 'direction': 'egress', 'protocol': 'tcp', 'source_ip_prefix': prefix} egress = mock.call.add_rule('ofake_dev', '-s %s -p tcp -m tcp -j RETURN' % prefix) ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_egress_icmp(self): rule = {'ethertype': 'IPv6', 'direction': 'egress', 'protocol': 'icmp'} egress = mock.call.add_rule('ofake_dev', '-p icmpv6 -j RETURN') ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_egress_icmp_prefix(self): prefix = FAKE_PREFIX['IPv6'] rule = {'ethertype': 'IPv6', 'direction': 'egress', 'protocol': 'icmp', 'source_ip_prefix': prefix} egress = mock.call.add_rule( 'ofake_dev', '-s %s -p icmpv6 -j RETURN' % prefix) ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_egress_icmp_type(self): prefix = FAKE_PREFIX['IPv6'] rule = {'ethertype': 'IPv6', 'direction': 'egress', 'protocol': 'icmp', 'source_port_range_min': 8, 'source_ip_prefix': prefix} egress = mock.call.add_rule( 'ofake_dev', '-s %s -p icmpv6 --icmpv6-type 8 -j RETURN' % prefix) ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_egress_icmp_type_name(self): prefix = FAKE_PREFIX['IPv6'] rule = {'ethertype': 'IPv6', 'direction': 'egress', 'protocol': 'icmp', 'source_port_range_min': 'echo-request', 'source_ip_prefix': prefix} egress = mock.call.add_rule( 'ofake_dev', '-s %s -p icmpv6 --icmpv6-type echo-request -j RETURN' % prefix) ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_egress_icmp_type_code(self): prefix = FAKE_PREFIX['IPv6'] rule = {'ethertype': 'IPv6', 'direction': 'egress', 'protocol': 'icmp', 'source_port_range_min': 8, 'source_port_range_max': 0, 'source_ip_prefix': prefix} egress = mock.call.add_rule( 'ofake_dev', '-s %s -p icmpv6 --icmpv6-type 8/0 -j RETURN' % prefix) ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_egress_tcp_port(self): rule = {'ethertype': 'IPv6', 'direction': 'egress', 'protocol': 'tcp', 'port_range_min': 10, 'port_range_max': 10} egress = mock.call.add_rule('ofake_dev', '-p tcp -m tcp --dport 10 -j RETURN') ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_egress_tcp_mport(self): rule = {'ethertype': 'IPv6', 'direction': 'egress', 'protocol': 'tcp', 'port_range_min': 10, 'port_range_max': 100} egress = mock.call.add_rule( 'ofake_dev', '-p tcp -m tcp -m multiport --dports 10:100 -j RETURN') ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_egress_tcp_mport_prefix(self): prefix = FAKE_PREFIX['IPv6'] rule = {'ethertype': 'IPv6', 'direction': 'egress', 'protocol': 'tcp', 'port_range_min': 10, 'port_range_max': 100, 'source_ip_prefix': prefix} egress = mock.call.add_rule( 'ofake_dev', '-s %s -p tcp -m tcp -m multiport --dports 10:100 ' '-j RETURN' % prefix) ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_egress_udp(self): rule = {'ethertype': 'IPv6', 'direction': 'egress', 'protocol': 'udp'} egress = mock.call.add_rule('ofake_dev', '-p udp -m udp -j RETURN') ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_egress_udp_prefix(self): prefix = FAKE_PREFIX['IPv6'] rule = {'ethertype': 'IPv6', 'direction': 'egress', 'protocol': 'udp', 'source_ip_prefix': prefix} egress = mock.call.add_rule('ofake_dev', '-s %s -p udp -m udp -j RETURN' % prefix) ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_egress_udp_port(self): rule = {'ethertype': 'IPv6', 'direction': 'egress', 'protocol': 'udp', 'port_range_min': 10, 'port_range_max': 10} egress = mock.call.add_rule('ofake_dev', '-p udp -m udp --dport 10 -j RETURN') ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_egress_udp_mport(self): rule = {'ethertype': 'IPv6', 'direction': 'egress', 'protocol': 'udp', 'port_range_min': 10, 'port_range_max': 100} egress = mock.call.add_rule( 'ofake_dev', '-p udp -m udp -m multiport --dports 10:100 -j RETURN') ingress = None self._test_prepare_port_filter(rule, ingress, egress) def test_filter_ipv6_egress_udp_mport_prefix(self): prefix = FAKE_PREFIX['IPv6'] rule = {'ethertype': 'IPv6', 'direction': 'egress', 'protocol': 'udp', 'port_range_min': 10, 'port_range_max': 100, 'source_ip_prefix': prefix} egress = mock.call.add_rule( 'ofake_dev', '-s %s -p udp -m udp -m multiport --dports 10:100 ' '-j RETURN' % prefix) ingress = None self._test_prepare_port_filter(rule, ingress, egress) def _test_prepare_port_filter(self, rule, ingress_expected_call=None, egress_expected_call=None): port = self._fake_port() ethertype = rule['ethertype'] prefix = FAKE_IP[ethertype] filter_inst = self.v4filter_inst dhcp_rule = mock.call.add_rule( 'ofake_dev', '-p udp -m udp --sport 68 --dport 67 -j RETURN') if ethertype == 'IPv6': filter_inst = self.v6filter_inst dhcp_rule = mock.call.add_rule('ofake_dev', '-p icmpv6 -j RETURN') sg = [rule] port['security_group_rules'] = sg self.firewall.prepare_port_filter(port) calls = [mock.call.add_chain('sg-fallback'), mock.call.add_rule('sg-fallback', '-j DROP'), mock.call.ensure_remove_chain('sg-chain'), mock.call.add_chain('sg-chain'), mock.call.add_chain('ifake_dev'), mock.call.add_rule('FORWARD', '-m physdev --physdev-out tapfake_dev ' '--physdev-is-bridged ' '-j $sg-chain'), mock.call.add_rule('sg-chain', '-m physdev --physdev-out tapfake_dev ' '--physdev-is-bridged ' '-j $ifake_dev'), ] if ethertype == 'IPv6': for icmp6_type in constants.ICMPV6_ALLOWED_TYPES: calls.append( mock.call.add_rule('ifake_dev', '-p icmpv6 --icmpv6-type %s -j RETURN' % icmp6_type)) calls += [mock.call.add_rule('ifake_dev', '-m state --state INVALID -j DROP'), mock.call.add_rule( 'ifake_dev', '-m state --state RELATED,ESTABLISHED -j RETURN')] if ingress_expected_call: calls.append(ingress_expected_call) calls += [mock.call.add_rule('ifake_dev', '-j $sg-fallback'), mock.call.add_chain('ofake_dev'), mock.call.add_rule('FORWARD', '-m physdev --physdev-in tapfake_dev ' '--physdev-is-bridged ' '-j $sg-chain'), mock.call.add_rule('sg-chain', '-m physdev --physdev-in tapfake_dev ' '--physdev-is-bridged ' '-j $ofake_dev'), mock.call.add_rule('INPUT', '-m physdev --physdev-in tapfake_dev ' '--physdev-is-bridged ' '-j $ofake_dev'), mock.call.add_chain('sfake_dev'), mock.call.add_rule( 'sfake_dev', '-m mac --mac-source ff:ff:ff:ff:ff:ff -s %s -j RETURN' % prefix), mock.call.add_rule('sfake_dev', '-j DROP'), dhcp_rule, mock.call.add_rule('ofake_dev', '-j $sfake_dev')] if ethertype == 'IPv4': calls.append(mock.call.add_rule( 'ofake_dev', '-p udp -m udp --sport 67 --dport 68 -j DROP')) calls += [mock.call.add_rule( 'ofake_dev', '-m state --state INVALID -j DROP'), mock.call.add_rule( 'ofake_dev', '-m state --state RELATED,ESTABLISHED -j RETURN')] if egress_expected_call: calls.append(egress_expected_call) calls += [mock.call.add_rule('ofake_dev', '-j $sg-fallback'), mock.call.add_rule('sg-chain', '-j ACCEPT')] filter_inst.assert_has_calls(calls) def test_update_delete_port_filter(self): port = self._fake_port() port['security_group_rules'] = [{'ethertype': 'IPv4', 'direction': 'ingress'}] self.firewall.prepare_port_filter(port) port['security_group_rules'] = [{'ethertype': 'IPv4', 'direction': 'egress'}] self.firewall.update_port_filter(port) self.firewall.update_port_filter({'device': 'no-exist-device'}) self.firewall.remove_port_filter(port) self.firewall.remove_port_filter({'device': 'no-exist-device'}) calls = [mock.call.add_chain('sg-fallback'), mock.call.add_rule('sg-fallback', '-j DROP'), mock.call.ensure_remove_chain('sg-chain'), mock.call.add_chain('sg-chain'), mock.call.add_chain('ifake_dev'), mock.call.add_rule( 'FORWARD', '-m physdev --physdev-out tapfake_dev ' '--physdev-is-bridged -j $sg-chain'), mock.call.add_rule( 'sg-chain', '-m physdev --physdev-out tapfake_dev ' '--physdev-is-bridged -j $ifake_dev'), mock.call.add_rule( 'ifake_dev', '-m state --state INVALID -j DROP'), mock.call.add_rule( 'ifake_dev', '-m state --state RELATED,ESTABLISHED -j RETURN'), mock.call.add_rule('ifake_dev', '-j RETURN'), mock.call.add_rule('ifake_dev', '-j $sg-fallback'), mock.call.add_chain('ofake_dev'), mock.call.add_rule( 'FORWARD', '-m physdev --physdev-in tapfake_dev ' '--physdev-is-bridged -j $sg-chain'), mock.call.add_rule( 'sg-chain', '-m physdev --physdev-in tapfake_dev ' '--physdev-is-bridged -j $ofake_dev'), mock.call.add_rule( 'INPUT', '-m physdev --physdev-in tapfake_dev ' '--physdev-is-bridged -j $ofake_dev'), mock.call.add_chain('sfake_dev'), mock.call.add_rule( 'sfake_dev', '-m mac --mac-source ff:ff:ff:ff:ff:ff -s 10.0.0.1 ' '-j RETURN'), mock.call.add_rule('sfake_dev', '-j DROP'), mock.call.add_rule( 'ofake_dev', '-p udp -m udp --sport 68 --dport 67 -j RETURN'), mock.call.add_rule('ofake_dev', '-j $sfake_dev'), mock.call.add_rule( 'ofake_dev', '-p udp -m udp --sport 67 --dport 68 -j DROP'), mock.call.add_rule( 'ofake_dev', '-m state --state INVALID -j DROP'), mock.call.add_rule( 'ofake_dev', '-m state --state RELATED,ESTABLISHED -j RETURN'), mock.call.add_rule('ofake_dev', '-j $sg-fallback'), mock.call.add_rule('sg-chain', '-j ACCEPT'), mock.call.ensure_remove_chain('ifake_dev'), mock.call.ensure_remove_chain('ofake_dev'), mock.call.ensure_remove_chain('sfake_dev'), mock.call.ensure_remove_chain('sg-chain'), mock.call.add_chain('sg-chain'), mock.call.add_chain('ifake_dev'), mock.call.add_rule( 'FORWARD', '-m physdev --physdev-out tapfake_dev ' '--physdev-is-bridged -j $sg-chain'), mock.call.add_rule( 'sg-chain', '-m physdev --physdev-out tapfake_dev ' '--physdev-is-bridged -j $ifake_dev'), mock.call.add_rule( 'ifake_dev', '-m state --state INVALID -j DROP'), mock.call.add_rule( 'ifake_dev', '-m state --state RELATED,ESTABLISHED -j RETURN'), mock.call.add_rule('ifake_dev', '-j $sg-fallback'), mock.call.add_chain('ofake_dev'), mock.call.add_rule( 'FORWARD', '-m physdev --physdev-in tapfake_dev ' '--physdev-is-bridged -j $sg-chain'), mock.call.add_rule( 'sg-chain', '-m physdev --physdev-in tapfake_dev ' '--physdev-is-bridged -j $ofake_dev'), mock.call.add_rule( 'INPUT', '-m physdev --physdev-in tapfake_dev ' '--physdev-is-bridged -j $ofake_dev'), mock.call.add_chain('sfake_dev'), mock.call.add_rule( 'sfake_dev', '-m mac --mac-source ff:ff:ff:ff:ff:ff -s 10.0.0.1 ' '-j RETURN'), mock.call.add_rule('sfake_dev', '-j DROP'), mock.call.add_rule( 'ofake_dev', '-p udp -m udp --sport 68 --dport 67 -j RETURN'), mock.call.add_rule('ofake_dev', '-j $sfake_dev'), mock.call.add_rule( 'ofake_dev', '-p udp -m udp --sport 67 --dport 68 -j DROP'), mock.call.add_rule( 'ofake_dev', '-m state --state INVALID -j DROP'), mock.call.add_rule( 'ofake_dev', '-m state --state RELATED,ESTABLISHED -j RETURN'), mock.call.add_rule('ofake_dev', '-j RETURN'), mock.call.add_rule('ofake_dev', '-j $sg-fallback'), mock.call.add_rule('sg-chain', '-j ACCEPT'), mock.call.ensure_remove_chain('ifake_dev'), mock.call.ensure_remove_chain('ofake_dev'), mock.call.ensure_remove_chain('sfake_dev'), mock.call.ensure_remove_chain('sg-chain'), mock.call.add_chain('sg-chain')] self.v4filter_inst.assert_has_calls(calls) def test_remove_unknown_port(self): port = self._fake_port() self.firewall.remove_port_filter(port) # checking no exception occures self.v4filter_inst.assert_has_calls([]) def test_defer_apply(self): with self.firewall.defer_apply(): pass self.iptables_inst.assert_has_calls([mock.call.defer_apply_on(), mock.call.defer_apply_off()]) def test_filter_defer_with_exception(self): try: with self.firewall.defer_apply(): raise Exception("same exception") except Exception: pass self.iptables_inst.assert_has_calls([mock.call.defer_apply_on(), mock.call.defer_apply_off()]) def _mock_chain_applies(self): class CopyingMock(mock.MagicMock): """Copies arguments so mutable arguments can be asserted on. Copied verbatim from unittest.mock documentation. """ def __call__(self, *args, **kwargs): args = copy.deepcopy(args) kwargs = copy.deepcopy(kwargs) return super(CopyingMock, self).__call__(*args, **kwargs) # Need to use CopyingMock because _{setup,remove}_chains_apply are # usually called with that's modified between calls (i.e., # self.firewall.filtered_ports). chain_applies = CopyingMock() self.firewall._setup_chains_apply = chain_applies.setup self.firewall._remove_chains_apply = chain_applies.remove return chain_applies def test_mock_chain_applies(self): chain_applies = self._mock_chain_applies() port_prepare = {'device': 'd1', 'mac_address': 'prepare'} port_update = {'device': 'd1', 'mac_address': 'update'} self.firewall.prepare_port_filter(port_prepare) self.firewall.update_port_filter(port_update) self.firewall.remove_port_filter(port_update) chain_applies.assert_has_calls([mock.call.remove({}), mock.call.setup({'d1': port_prepare}), mock.call.remove({'d1': port_prepare}), mock.call.setup({'d1': port_update}), mock.call.remove({'d1': port_update}), mock.call.setup({})]) def test_defer_chain_apply_need_pre_defer_copy(self): chain_applies = self._mock_chain_applies() port = self._fake_port() device2port = {port['device']: port} self.firewall.prepare_port_filter(port) with self.firewall.defer_apply(): self.firewall.remove_port_filter(port) chain_applies.assert_has_calls([mock.call.remove({}), mock.call.setup(device2port), mock.call.remove(device2port), mock.call.setup({})]) def test_defer_chain_apply_coalesce_simple(self): chain_applies = self._mock_chain_applies() port = self._fake_port() with self.firewall.defer_apply(): self.firewall.prepare_port_filter(port) self.firewall.update_port_filter(port) self.firewall.remove_port_filter(port) chain_applies.assert_has_calls([mock.call.remove({}), mock.call.setup({})]) def test_defer_chain_apply_coalesce_multiple_ports(self): chain_applies = self._mock_chain_applies() port1 = {'device': 'd1', 'mac_address': 'mac1'} port2 = {'device': 'd2', 'mac_address': 'mac2'} device2port = {'d1': port1, 'd2': port2} with self.firewall.defer_apply(): self.firewall.prepare_port_filter(port1) self.firewall.prepare_port_filter(port2) chain_applies.assert_has_calls([mock.call.remove({}), mock.call.setup(device2port)]) def test_ip_spoofing_filter_with_multiple_ips(self): port = {'device': 'tapfake_dev', 'mac_address': 'ff:ff:ff:ff:ff:ff', 'fixed_ips': ['10.0.0.1', 'fe80::1', '10.0.0.2']} self.firewall.prepare_port_filter(port) calls = [mock.call.add_chain('sg-fallback'), mock.call.add_rule('sg-fallback', '-j DROP'), mock.call.ensure_remove_chain('sg-chain'), mock.call.add_chain('sg-chain'), mock.call.add_chain('ifake_dev'), mock.call.add_rule('FORWARD', '-m physdev --physdev-out tapfake_dev ' '--physdev-is-bridged ' '-j $sg-chain'), mock.call.add_rule('sg-chain', '-m physdev --physdev-out tapfake_dev ' '--physdev-is-bridged ' '-j $ifake_dev'), mock.call.add_rule( 'ifake_dev', '-m state --state INVALID -j DROP'), mock.call.add_rule( 'ifake_dev', '-m state --state RELATED,ESTABLISHED -j RETURN'), mock.call.add_rule('ifake_dev', '-j $sg-fallback'), mock.call.add_chain('ofake_dev'), mock.call.add_rule('FORWARD', '-m physdev --physdev-in tapfake_dev ' '--physdev-is-bridged ' '-j $sg-chain'), mock.call.add_rule('sg-chain', '-m physdev --physdev-in tapfake_dev ' '--physdev-is-bridged ' '-j $ofake_dev'), mock.call.add_rule('INPUT', '-m physdev --physdev-in tapfake_dev ' '--physdev-is-bridged ' '-j $ofake_dev'), mock.call.add_chain('sfake_dev'), mock.call.add_rule( 'sfake_dev', '-m mac --mac-source ff:ff:ff:ff:ff:ff -s 10.0.0.1 ' '-j RETURN'), mock.call.add_rule( 'sfake_dev', '-m mac --mac-source ff:ff:ff:ff:ff:ff -s 10.0.0.2 ' '-j RETURN'), mock.call.add_rule('sfake_dev', '-j DROP'), mock.call.add_rule( 'ofake_dev', '-p udp -m udp --sport 68 --dport 67 -j RETURN'), mock.call.add_rule('ofake_dev', '-j $sfake_dev'), mock.call.add_rule( 'ofake_dev', '-p udp -m udp --sport 67 --dport 68 -j DROP'), mock.call.add_rule( 'ofake_dev', '-m state --state INVALID -j DROP'), mock.call.add_rule( 'ofake_dev', '-m state --state RELATED,ESTABLISHED -j RETURN'), mock.call.add_rule('ofake_dev', '-j $sg-fallback'), mock.call.add_rule('sg-chain', '-j ACCEPT')] self.v4filter_inst.assert_has_calls(calls) def test_ip_spoofing_no_fixed_ips(self): port = {'device': 'tapfake_dev', 'mac_address': 'ff:ff:ff:ff:ff:ff', 'fixed_ips': []} self.firewall.prepare_port_filter(port) calls = [mock.call.add_chain('sg-fallback'), mock.call.add_rule('sg-fallback', '-j DROP'), mock.call.ensure_remove_chain('sg-chain'), mock.call.add_chain('sg-chain'), mock.call.add_chain('ifake_dev'), mock.call.add_rule('FORWARD', '-m physdev --physdev-out tapfake_dev ' '--physdev-is-bridged ' '-j $sg-chain'), mock.call.add_rule('sg-chain', '-m physdev --physdev-out tapfake_dev ' '--physdev-is-bridged ' '-j $ifake_dev'), mock.call.add_rule( 'ifake_dev', '-m state --state INVALID -j DROP'), mock.call.add_rule( 'ifake_dev', '-m state --state RELATED,ESTABLISHED -j RETURN'), mock.call.add_rule('ifake_dev', '-j $sg-fallback'), mock.call.add_chain('ofake_dev'), mock.call.add_rule('FORWARD', '-m physdev --physdev-in tapfake_dev ' '--physdev-is-bridged ' '-j $sg-chain'), mock.call.add_rule('sg-chain', '-m physdev --physdev-in tapfake_dev ' '--physdev-is-bridged ' '-j $ofake_dev'), mock.call.add_rule('INPUT', '-m physdev --physdev-in tapfake_dev ' '--physdev-is-bridged ' '-j $ofake_dev'), mock.call.add_chain('sfake_dev'), mock.call.add_rule( 'sfake_dev', '-m mac --mac-source ff:ff:ff:ff:ff:ff -j RETURN'), mock.call.add_rule('sfake_dev', '-j DROP'), mock.call.add_rule( 'ofake_dev', '-p udp -m udp --sport 68 --dport 67 -j RETURN'), mock.call.add_rule('ofake_dev', '-j $sfake_dev'), mock.call.add_rule( 'ofake_dev', '-p udp -m udp --sport 67 --dport 68 -j DROP'), mock.call.add_rule( 'ofake_dev', '-m state --state INVALID -j DROP'), mock.call.add_rule( 'ofake_dev', '-m state --state RELATED,ESTABLISHED -j RETURN'), mock.call.add_rule('ofake_dev', '-j $sg-fallback'), mock.call.add_rule('sg-chain', '-j ACCEPT')] self.v4filter_inst.assert_has_calls(calls)