openstack/neutron-fwaas
Code Issues Proposed changes
f7d4f46589
neutron-fwaas/neutron/tests/unit/test_iptables_firewall.py
Aaron Rosen 0efce6195f Implement Allowed Address Pairs 
The following patch adds the concept of allowed address pairs.
This allows one to add additional ip/mac address pairs on a port to
allow traffic that matches those specified values. This is useful in order
to leverage dataplane failover mechanisms like vrrp. This patch adds support
for the NVP plugin, the OVS plugin, and Ml2.

DocImpact

implements blueprint: allowed-address-pairs

Change-Id: Ie73b3886c5be8e1fc4ade86a0cfb854267f345ac
2013-09-05 03:53:59 -07:00

1129 lines
47 KiB
Python
Raw Blame History

# 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 mock import call
from oslo.config import cfg
from neutron.agent.common import config as a_cfg
from neutron.agent.linux.iptables_firewall import IptablesFirewallDriver
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.addCleanup(self.utils_exec_p.stop)
self.iptables_cls_p = mock.patch(
'neutron.agent.linux.iptables_manager.IptablesManager')
iptables_cls = self.iptables_cls_p.start()
self.addCleanup(self.iptables_cls_p.stop)
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 = IptablesFirewallDriver()
self.firewall.iptables = self.iptables_inst
def _fake_port(self):
return {'device': 'tapfake_dev',
'mac_address': '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 = [call.add_chain('sg-fallback'),
call.add_rule('sg-fallback', '-j DROP'),
call.ensure_remove_chain('sg-chain'),
call.add_chain('sg-chain'),
call.add_chain('ifake_dev'),
call.add_rule('FORWARD',
'-m physdev --physdev-out tapfake_dev '
'--physdev-is-bridged '
'-j $sg-chain'),
call.add_rule('sg-chain',
'-m physdev --physdev-out tapfake_dev '
'--physdev-is-bridged '
'-j $ifake_dev'),
call.add_rule(
'ifake_dev', '-m state --state INVALID -j DROP'),
call.add_rule(
'ifake_dev',
'-m state --state RELATED,ESTABLISHED -j RETURN'),
call.add_rule('ifake_dev', '-j $sg-fallback'),
call.add_chain('ofake_dev'),
call.add_rule('FORWARD',
'-m physdev --physdev-in tapfake_dev '
'--physdev-is-bridged '
'-j $sg-chain'),
call.add_rule('sg-chain',
'-m physdev --physdev-in tapfake_dev '
'--physdev-is-bridged '
'-j $ofake_dev'),
call.add_rule('INPUT',
'-m physdev --physdev-in tapfake_dev '
'--physdev-is-bridged '
'-j $ofake_dev'),
call.add_chain('sfake_dev'),
call.add_rule(
'sfake_dev', '-m mac --mac-source ff:ff:ff:ff '
'-s 10.0.0.1 -j RETURN'),
call.add_rule('sfake_dev', '-j DROP'),
call.add_rule(
'ofake_dev',
'-p udp -m udp --sport 68 --dport 67 -j RETURN'),
call.add_rule('ofake_dev', '-j $sfake_dev'),
call.add_rule(
'ofake_dev',
'-p udp -m udp --sport 67 --dport 68 -j DROP'),
call.add_rule(
'ofake_dev', '-m state --state INVALID -j DROP'),
call.add_rule(
'ofake_dev',
'-m state --state RELATED,ESTABLISHED -j RETURN'),
call.add_rule('ofake_dev', '-j $sg-fallback'),
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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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_tcp_port(self):
rule = {'ethertype': 'IPv4',
'direction': 'egress',
'protocol': 'tcp',
'port_range_min': 10,
'port_range_max': 10}
egress = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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_tcp_port(self):
rule = {'ethertype': 'IPv6',
'direction': 'egress',
'protocol': 'tcp',
'port_range_min': 10,
'port_range_max': 10}
egress = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = call.add_rule('ofake_dev', '-p icmpv6 -j RETURN')
sg = [rule]
port['security_group_rules'] = sg
self.firewall.prepare_port_filter(port)
calls = [call.add_chain('sg-fallback'),
call.add_rule('sg-fallback', '-j DROP'),
call.ensure_remove_chain('sg-chain'),
call.add_chain('sg-chain'),
call.add_chain('ifake_dev'),
call.add_rule('FORWARD',
'-m physdev --physdev-out tapfake_dev '
'--physdev-is-bridged '
'-j $sg-chain'),
call.add_rule('sg-chain',
'-m physdev --physdev-out tapfake_dev '
'--physdev-is-bridged '
'-j $ifake_dev'),
call.add_rule(
'ifake_dev', '-m state --state INVALID -j DROP'),
call.add_rule(
'ifake_dev',
'-m state --state RELATED,ESTABLISHED -j RETURN')]
if ingress_expected_call:
calls.append(ingress_expected_call)
calls += [call.add_rule('ifake_dev', '-j $sg-fallback'),
call.add_chain('ofake_dev'),
call.add_rule('FORWARD',
'-m physdev --physdev-in tapfake_dev '
'--physdev-is-bridged '
'-j $sg-chain'),
call.add_rule('sg-chain',
'-m physdev --physdev-in tapfake_dev '
'--physdev-is-bridged '
'-j $ofake_dev'),
call.add_rule('INPUT',
'-m physdev --physdev-in tapfake_dev '
'--physdev-is-bridged '
'-j $ofake_dev'),
call.add_chain('sfake_dev'),
call.add_rule(
'sfake_dev',
'-m mac --mac-source ff:ff:ff:ff -s %s -j RETURN'
% prefix),
call.add_rule('sfake_dev', '-j DROP'),
dhcp_rule,
call.add_rule('ofake_dev', '-j $sfake_dev')]
if ethertype == 'IPv4':
calls.append(call.add_rule(
'ofake_dev',
'-p udp -m udp --sport 67 --dport 68 -j DROP'))
calls += [call.add_rule(
'ofake_dev', '-m state --state INVALID -j DROP'),
call.add_rule(
'ofake_dev',
'-m state --state RELATED,ESTABLISHED -j RETURN')]
if egress_expected_call:
calls.append(egress_expected_call)
calls += [call.add_rule('ofake_dev', '-j $sg-fallback'),
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 = [call.add_chain('sg-fallback'),
call.add_rule('sg-fallback', '-j DROP'),
call.ensure_remove_chain('sg-chain'),
call.add_chain('sg-chain'),
call.add_chain('ifake_dev'),
call.add_rule(
'FORWARD',
'-m physdev --physdev-out tapfake_dev '
'--physdev-is-bridged -j $sg-chain'),
call.add_rule(
'sg-chain',
'-m physdev --physdev-out tapfake_dev '
'--physdev-is-bridged -j $ifake_dev'),
call.add_rule(
'ifake_dev', '-m state --state INVALID -j DROP'),
call.add_rule(
'ifake_dev',
'-m state --state RELATED,ESTABLISHED -j RETURN'),
call.add_rule('ifake_dev', '-j RETURN'),
call.add_rule('ifake_dev', '-j $sg-fallback'),
call.add_chain('ofake_dev'),
call.add_rule(
'FORWARD',
'-m physdev --physdev-in tapfake_dev '
'--physdev-is-bridged -j $sg-chain'),
call.add_rule(
'sg-chain',
'-m physdev --physdev-in tapfake_dev '
'--physdev-is-bridged -j $ofake_dev'),
call.add_rule(
'INPUT',
'-m physdev --physdev-in tapfake_dev '
'--physdev-is-bridged -j $ofake_dev'),
call.add_chain('sfake_dev'),
call.add_rule(
'sfake_dev',
'-m mac --mac-source ff:ff:ff:ff -s 10.0.0.1 '
'-j RETURN'),
call.add_rule('sfake_dev', '-j DROP'),
call.add_rule(
'ofake_dev',
'-p udp -m udp --sport 68 --dport 67 -j RETURN'),
call.add_rule('ofake_dev', '-j $sfake_dev'),
call.add_rule(
'ofake_dev',
'-p udp -m udp --sport 67 --dport 68 -j DROP'),
call.add_rule(
'ofake_dev', '-m state --state INVALID -j DROP'),
call.add_rule(
'ofake_dev',
'-m state --state RELATED,ESTABLISHED -j RETURN'),
call.add_rule('ofake_dev', '-j $sg-fallback'),
call.add_rule('sg-chain', '-j ACCEPT'),
call.ensure_remove_chain('ifake_dev'),
call.ensure_remove_chain('ofake_dev'),
call.ensure_remove_chain('sfake_dev'),
call.ensure_remove_chain('sg-chain'),
call.add_chain('sg-chain'),
call.add_chain('ifake_dev'),
call.add_rule(
'FORWARD',
'-m physdev --physdev-out tapfake_dev '
'--physdev-is-bridged -j $sg-chain'),
call.add_rule(
'sg-chain',
'-m physdev --physdev-out tapfake_dev '
'--physdev-is-bridged -j $ifake_dev'),
call.add_rule(
'ifake_dev',
'-m state --state INVALID -j DROP'),
call.add_rule(
'ifake_dev',
'-m state --state RELATED,ESTABLISHED -j RETURN'),
call.add_rule('ifake_dev', '-j $sg-fallback'),
call.add_chain('ofake_dev'),
call.add_rule(
'FORWARD',
'-m physdev --physdev-in tapfake_dev '
'--physdev-is-bridged -j $sg-chain'),
call.add_rule(
'sg-chain',
'-m physdev --physdev-in tapfake_dev '
'--physdev-is-bridged -j $ofake_dev'),
call.add_rule(
'INPUT',
'-m physdev --physdev-in tapfake_dev '
'--physdev-is-bridged -j $ofake_dev'),
call.add_chain('sfake_dev'),
call.add_rule(
'sfake_dev',
'-m mac --mac-source ff:ff:ff:ff -s 10.0.0.1 -j RETURN'),
call.add_rule('sfake_dev', '-j DROP'),
call.add_rule(
'ofake_dev',
'-p udp -m udp --sport 68 --dport 67 -j RETURN'),
call.add_rule('ofake_dev', '-j $sfake_dev'),
call.add_rule(
'ofake_dev',
'-p udp -m udp --sport 67 --dport 68 -j DROP'),
call.add_rule(
'ofake_dev', '-m state --state INVALID -j DROP'),
call.add_rule(
'ofake_dev',
'-m state --state RELATED,ESTABLISHED -j RETURN'),
call.add_rule('ofake_dev', '-j RETURN'),
call.add_rule('ofake_dev', '-j $sg-fallback'),
call.add_rule('sg-chain', '-j ACCEPT'),
call.ensure_remove_chain('ifake_dev'),
call.ensure_remove_chain('ofake_dev'),
call.ensure_remove_chain('sfake_dev'),
call.ensure_remove_chain('sg-chain'),
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([call.defer_apply_on(),
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([call.defer_apply_on(),
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([call.remove({}),
call.setup({'d1': port_prepare}),
call.remove({'d1': port_prepare}),
call.setup({'d1': port_update}),
call.remove({'d1': port_update}),
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([call.remove({}),
call.setup(device2port),
call.remove(device2port),
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([call.remove({}), 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([call.remove({}),
call.setup(device2port)])
def test_ip_spoofing_filter_with_multiple_ips(self):
port = {'device': 'tapfake_dev',
'mac_address': 'ff:ff:ff:ff',
'fixed_ips': ['10.0.0.1', 'fe80::1', '10.0.0.2']}
self.firewall.prepare_port_filter(port)
calls = [call.add_chain('sg-fallback'),
call.add_rule('sg-fallback', '-j DROP'),
call.ensure_remove_chain('sg-chain'),
call.add_chain('sg-chain'),
call.add_chain('ifake_dev'),
call.add_rule('FORWARD',
'-m physdev --physdev-out tapfake_dev '
'--physdev-is-bridged '
'-j $sg-chain'),
call.add_rule('sg-chain',
'-m physdev --physdev-out tapfake_dev '
'--physdev-is-bridged '
'-j $ifake_dev'),
call.add_rule(
'ifake_dev', '-m state --state INVALID -j DROP'),
call.add_rule(
'ifake_dev',
'-m state --state RELATED,ESTABLISHED -j RETURN'),
call.add_rule('ifake_dev', '-j $sg-fallback'),
call.add_chain('ofake_dev'),
call.add_rule('FORWARD',
'-m physdev --physdev-in tapfake_dev '
'--physdev-is-bridged '
'-j $sg-chain'),
call.add_rule('sg-chain',
'-m physdev --physdev-in tapfake_dev '
'--physdev-is-bridged '
'-j $ofake_dev'),
call.add_rule('INPUT',
'-m physdev --physdev-in tapfake_dev '
'--physdev-is-bridged '
'-j $ofake_dev'),
call.add_chain('sfake_dev'),
call.add_rule(
'sfake_dev',
'-m mac --mac-source ff:ff:ff:ff -s 10.0.0.1 -j RETURN'),
call.add_rule(
'sfake_dev',
'-m mac --mac-source ff:ff:ff:ff -s 10.0.0.2 -j RETURN'),
call.add_rule('sfake_dev', '-j DROP'),
call.add_rule(
'ofake_dev',
'-p udp -m udp --sport 68 --dport 67 -j RETURN'),
call.add_rule('ofake_dev', '-j $sfake_dev'),
call.add_rule(
'ofake_dev',
'-p udp -m udp --sport 67 --dport 68 -j DROP'),
call.add_rule(
'ofake_dev', '-m state --state INVALID -j DROP'),
call.add_rule(
'ofake_dev',
'-m state --state RELATED,ESTABLISHED -j RETURN'),
call.add_rule('ofake_dev', '-j $sg-fallback'),
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',
'fixed_ips': []}
self.firewall.prepare_port_filter(port)
calls = [call.add_chain('sg-fallback'),
call.add_rule('sg-fallback', '-j DROP'),
call.ensure_remove_chain('sg-chain'),
call.add_chain('sg-chain'),
call.add_chain('ifake_dev'),
call.add_rule('FORWARD',
'-m physdev --physdev-out tapfake_dev '
'--physdev-is-bridged '
'-j $sg-chain'),
call.add_rule('sg-chain',
'-m physdev --physdev-out tapfake_dev '
'--physdev-is-bridged '
'-j $ifake_dev'),
call.add_rule(
'ifake_dev', '-m state --state INVALID -j DROP'),
call.add_rule(
'ifake_dev',
'-m state --state RELATED,ESTABLISHED -j RETURN'),
call.add_rule('ifake_dev', '-j $sg-fallback'),
call.add_chain('ofake_dev'),
call.add_rule('FORWARD',
'-m physdev --physdev-in tapfake_dev '
'--physdev-is-bridged '
'-j $sg-chain'),
call.add_rule('sg-chain',
'-m physdev --physdev-in tapfake_dev '
'--physdev-is-bridged '
'-j $ofake_dev'),
call.add_rule('INPUT',
'-m physdev --physdev-in tapfake_dev '
'--physdev-is-bridged '
'-j $ofake_dev'),
call.add_chain('sfake_dev'),
call.add_rule(
'sfake_dev',
'-m mac --mac-source ff:ff:ff:ff -j RETURN'),
call.add_rule('sfake_dev', '-j DROP'),
call.add_rule(
'ofake_dev',
'-p udp -m udp --sport 68 --dport 67 -j RETURN'),
call.add_rule('ofake_dev', '-j $sfake_dev'),
call.add_rule(
'ofake_dev',
'-p udp -m udp --sport 67 --dport 68 -j DROP'),
call.add_rule(
'ofake_dev', '-m state --state INVALID -j DROP'),
call.add_rule(
'ofake_dev',
'-m state --state RELATED,ESTABLISHED -j RETURN'),
call.add_rule('ofake_dev', '-j $sg-fallback'),
call.add_rule('sg-chain', '-j ACCEPT')]
self.v4filter_inst.assert_has_calls(calls)
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