def plug(self,
network_id,
port_id,
device_name,
mac_address,
bridge=None,
namespace=None,
prefix=None):
"""Plugin the interface."""
if not ip_lib.device_exists(
device_name, self.root_helper, namespace=namespace):
ip = ip_lib.IPWrapper(self.root_helper)
# Enable agent to define the prefix
if prefix:
tap_name = device_name.replace(prefix, 'tap')
else:
tap_name = device_name.replace(self.DEV_NAME_PREFIX, 'tap')
root_veth, ns_veth = ip.add_veth(tap_name, device_name)
ns_veth.link.set_address(mac_address)
if self.conf.network_device_mtu:
root_veth.link.set_mtu(self.conf.network_device_mtu)
ns_veth.link.set_mtu(self.conf.network_device_mtu)
if namespace:
namespace_obj = ip.ensure_namespace(namespace)
namespace_obj.add_device_to_namespace(ns_veth)
root_veth.link.set_up()
ns_veth.link.set_up()
else:
LOG.warn(_("Device %s already exists"), device_name)
def test_namespace_is_empty(self):
ip = ip_lib.IPWrapper('sudo', 'ns')
with mock.patch.object(ip, 'get_devices') as get_devices:
get_devices.return_value = [mock.Mock()]
self.assertFalse(ip.namespace_is_empty())
get_devices.assert_called_once_with(exclude_loopback=True)
def test_garbage_collect_namespace_does_not_exist(self):
with mock.patch.object(ip_lib, 'IpNetnsCommand') as ip_ns_cmd_cls:
ip_ns_cmd_cls.return_value.exists.return_value = False
ip = ip_lib.IPWrapper('sudo', 'ns')
with mock.patch.object(ip, 'namespace_is_empty') as mock_is_empty:
self.assertFalse(ip.garbage_collect_namespace())
ip_ns_cmd_cls.assert_has_calls([mock.call().exists('ns')])
self.assertNotIn(mock.call().delete('ns'),
ip_ns_cmd_cls.return_value.mock_calls)
self.assertEqual(mock_is_empty.mock_calls, [])
def test_ensure_namespace(self):
with mock.patch.object(ip_lib, 'IPDevice') as ip_dev:
ip = ip_lib.IPWrapper('sudo')
with mock.patch.object(ip.netns, 'exists') as ns_exists:
ns_exists.return_value = False
ip.ensure_namespace('ns')
self.execute.assert_has_calls(
[mock.call([], 'netns', ('add', 'ns'), 'sudo', None)])
ip_dev.assert_has_calls(
[mock.call('lo', 'sudo', 'ns'),
mock.call().link.set_up()])
def test_get_devices_malformed_line(self):
self.execute.return_value = '\n'.join(LINK_SAMPLE + ['gibberish'])
retval = ip_lib.IPWrapper('sudo').get_devices()
self.assertEqual(retval, [
ip_lib.IPDevice('lo'),
ip_lib.IPDevice('eth0'),
ip_lib.IPDevice('br-int'),
ip_lib.IPDevice('gw-ddc717df-49')
])
self.execute.assert_called_once_with('o', 'link', ('list', ), 'sudo',
None)
def test_garbage_collect_namespace_existing_empty_ns(self):
with mock.patch.object(ip_lib, 'IpNetnsCommand') as ip_ns_cmd_cls:
ip_ns_cmd_cls.return_value.exists.return_value = True
ip = ip_lib.IPWrapper('sudo', 'ns')
with mock.patch.object(ip, 'namespace_is_empty') as mock_is_empty:
mock_is_empty.return_value = True
self.assertTrue(ip.garbage_collect_namespace())
mock_is_empty.assert_called_once_with()
expected = [mock.call().exists('ns'), mock.call().delete('ns')]
ip_ns_cmd_cls.assert_has_calls(expected)
def plug(self,
network_id,
port_id,
device_name,
mac_address,
bridge=None,
namespace=None,
prefix=None):
"""Plug in the interface."""
if not bridge:
bridge = self.conf.ovs_integration_bridge
self.check_bridge_exists(bridge)
if not ip_lib.device_exists(
device_name, self.root_helper, namespace=namespace):
ip = ip_lib.IPWrapper(self.root_helper)
tap_name = self._get_tap_name(device_name, prefix)
if self.conf.ovs_use_veth:
root_dev, ns_dev = ip.add_veth(tap_name, device_name)
internal = not self.conf.ovs_use_veth
self._ovs_add_port(bridge,
tap_name,
port_id,
mac_address,
internal=internal)
ns_dev = ip.device(device_name)
ns_dev.link.set_address(mac_address)
if self.conf.network_device_mtu:
ns_dev.link.set_mtu(self.conf.network_device_mtu)
if self.conf.ovs_use_veth:
root_dev.link.set_mtu(self.conf.network_device_mtu)
if namespace:
namespace_obj = ip.ensure_namespace(namespace)
namespace_obj.add_device_to_namespace(ns_dev)
ns_dev.link.set_up()
if self.conf.ovs_use_veth:
root_dev.link.set_up()
else:
LOG.warn(_("Device %s already exists"), device_name)
def test_garbage_collect_namespace_existing_not_empty(self):
lo_device = mock.Mock()
lo_device.name = 'lo'
tap_device = mock.Mock()
tap_device.name = 'tap1'
with mock.patch.object(ip_lib, 'IpNetnsCommand') as ip_ns_cmd_cls:
ip_ns_cmd_cls.return_value.exists.return_value = True
ip = ip_lib.IPWrapper('sudo', 'ns')
with mock.patch.object(ip, 'namespace_is_empty') as mock_is_empty:
mock_is_empty.return_value = False
self.assertFalse(ip.garbage_collect_namespace())
mock_is_empty.assert_called_once_with()
expected = [mock.call(ip), mock.call().exists('ns')]
self.assertEqual(ip_ns_cmd_cls.mock_calls, expected)
self.assertNotIn(mock.call().delete('ns'),
ip_ns_cmd_cls.mock_calls)
def test_add_device_to_namespace_is_none(self):
dev = mock.Mock()
ip_lib.IPWrapper('sudo').add_device_to_namespace(dev)
self.assertEqual(dev.mock_calls, [])
def test_add_device_to_namespace(self):
dev = mock.Mock()
ip_lib.IPWrapper('sudo', 'ns').add_device_to_namespace(dev)
dev.assert_has_calls([mock.call.link.set_netns('ns')])
def test_ensure_namespace_existing(self):
with mock.patch.object(ip_lib, 'IpNetnsCommand') as ip_ns_cmd:
ip_ns_cmd.exists.return_value = True
ns = ip_lib.IPWrapper('sudo').ensure_namespace('ns')
self.assertFalse(self.execute.called)
self.assertEqual(ns.namespace, 'ns')
def test_get_device(self):
dev = ip_lib.IPWrapper('sudo', 'ns').device('eth0')
self.assertEqual(dev.root_helper, 'sudo')
self.assertEqual(dev.namespace, 'ns')
self.assertEqual(dev.name, 'eth0')
def test_add_veth(self):
ip_lib.IPWrapper('sudo').add_veth('tap0', 'tap1')
self.execute.assert_called_once_with(
'', 'link',
('add', 'tap0', 'type', 'veth', 'peer', 'name', 'tap1'), 'sudo',
None)
def test_add_tuntap(self):
ip_lib.IPWrapper('sudo').add_tuntap('tap0')
self.execute.assert_called_once_with('', 'tuntap',
('add', 'tap0', 'mode', 'tap'),
'sudo', None)
