def create_bridge_port_fixture(self):
bridge = self.useFixture(
net_helpers.LinuxBridgeFixture(namespace=None)).bridge
port_fixture = self.useFixture(
net_helpers.LinuxBridgePortFixture(
bridge, port_id=uuidutils.generate_uuid()))
return bridge, port_fixture
def test_plug_with_namespace_sets_mtu_higher_than_bridge(self):
device_mtu = 1450
# Create a new OVS bridge
ovs_bridge = self.useFixture(net_helpers.OVSBridgeFixture()).bridge
self.assertFalse(ovs_bridge.get_port_name_list())
# Add a new linuxbridge port with reduced MTU to OVS bridge
lb_bridge = self.useFixture(net_helpers.LinuxBridgeFixture()).bridge
lb_bridge_port = self.useFixture(
net_helpers.LinuxBridgePortFixture(lb_bridge))
lb_bridge_port.port.link.set_mtu(device_mtu - 1)
ovs_bridge.add_port(lb_bridge_port.port.name)
# Now plug a device with intended MTU that is higher than for the port
# above and validate that its MTU is not reduced to the least MTU on
# the bridge
device_name = utils.get_rand_name()
mac_address = utils.get_random_mac('fa:16:3e:00:00:00'.split(':'))
namespace = self.useFixture(net_helpers.NamespaceFixture()).name
self.interface.plug(network_id=uuidutils.generate_uuid(),
port_id=uuidutils.generate_uuid(),
device_name=device_name,
mac_address=mac_address,
bridge=ovs_bridge.br_name,
namespace=namespace,
mtu=device_mtu)
self.assertIn(device_name, ovs_bridge.get_port_name_list())
self.assertTrue(ip_lib.device_exists(device_name, namespace))
self.assertEqual(
device_mtu,
ip_lib.IPDevice(device_name, namespace=namespace).link.mtu)
def setUp(self):
cfg.CONF.register_opts(sg_cfg.security_group_opts, 'SECURITYGROUP')
super(IptablesFirewallTestCase, self).setUp()
bridge = self.useFixture(net_helpers.LinuxBridgeFixture()).bridge
# FIXME(cbrandily): temporary, will be replaced by fake machines
self.src_ip_wrapper = self.useFixture(
net_helpers.NamespaceFixture()).ip_wrapper
src_port_fixture = self.useFixture(
net_helpers.LinuxBridgePortFixture(bridge,
self.src_ip_wrapper.namespace))
self.src_port = src_port_fixture.port
self._set_ip_up(self.src_port, '%s/24' % self.SRC_ADDRESS)
self.dst_ip_wrapper = self.useFixture(
net_helpers.NamespaceFixture()).ip_wrapper
self.dst_port = self.useFixture(
net_helpers.LinuxBridgePortFixture(
bridge, self.dst_ip_wrapper.namespace)).port
self._set_ip_up(self.dst_port, '%s/24' % self.DST_ADDRESS)
self.firewall = iptables_firewall.IptablesFirewallDriver(
namespace=bridge.namespace)
self._set_src_mac(self.MAC_REAL)
self.src_port_desc = {
'admin_state_up': True,
'device': src_port_fixture.br_port.name,
'device_owner': 'compute:None',
'fixed_ips': [self.SRC_ADDRESS],
'mac_address': self.MAC_REAL,
'port_security_enabled': True,
'security_groups': [self.FAKE_SECURITY_GROUP_ID],
'status': 'ACTIVE'
}
def test_plug_with_namespace_sets_mtu_higher_than_bridge(self):
# First, add a new linuxbridge port with reduced MTU to OVS bridge
lb_bridge = self.useFixture(net_helpers.LinuxBridgeFixture()).bridge
lb_bridge_port = self.useFixture(
net_helpers.LinuxBridgePortFixture(lb_bridge))
lb_bridge_port.port.link.set_mtu(1400)
self.bridge.add_port(lb_bridge_port.port.name)
device_name = utils.get_rand_name()
namespace = self.useFixture(net_helpers.NamespaceFixture()).name
# Now plug a device with intended MTU that is higher than for the port
# above and validate that its MTU is not reduced to the least MTU on
# the bridge
self._test_mtu_set_after_action(device_name, self.bridge_name,
namespace)
def callback(br_fixture):
# TODO(cbrandily): refactor net_helpers to avoid mocking it
mock.patch.object(
net_helpers, 'VETH0_PREFIX',
new_callable=mock.PropertyMock(
return_value=constants.TAP_DEVICE_PREFIX + '0')).start()
mock.patch.object(
net_helpers, 'VETH1_PREFIX',
new_callable=mock.PropertyMock(
return_value=constants.TAP_DEVICE_PREFIX + '1')).start()
self.useFixture(
tools.SafeCleanupFixture(
net_helpers.LinuxBridgePortFixture(
br_fixture.bridge, br_fixture.namespace)))
return config_fixtures.ConfigDict()
def create_bridge_port_fixture(self):
bridge = self.useFixture(
net_helpers.LinuxBridgeFixture(namespace=None)).bridge
port_fixture = self.useFixture(
net_helpers.LinuxBridgePortFixture(bridge))
return bridge, port_fixture
