os-vif/vif_plug_ovs/tests/unit/test_linux_net.py

644 lines
28 KiB
Python

# 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 glob
import mock
import os.path
import testtools
from os_vif.internal.command import ip as ip_lib
from oslo_concurrency import processutils
from six.moves import builtins
from vif_plug_ovs import constants
from vif_plug_ovs import exception
from vif_plug_ovs import linux_net
from vif_plug_ovs import privsep
class LinuxNetTest(testtools.TestCase):
def setUp(self):
super(LinuxNetTest, self).setUp()
privsep.vif_plug.set_client_mode(False)
@mock.patch.object(ip_lib, "set")
@mock.patch.object(linux_net, "device_exists", return_value=True)
def test_ensure_bridge_exists(self, mock_dev_exists, mock_ip_set):
linux_net.ensure_bridge("br0")
mock_ip_set.assert_called_once_with('br0', state='up',
check_exit_code=[0, 2, 254])
mock_dev_exists.assert_has_calls([mock.call("br0")])
@mock.patch.object(linux_net, "_arp_filtering")
@mock.patch.object(ip_lib, "set")
@mock.patch.object(os.path, "exists", return_value=False)
@mock.patch.object(processutils, "execute")
@mock.patch.object(linux_net, "device_exists", return_value=False)
def test_ensure_bridge_new_ipv4(self, mock_dev_exists, mock_execute,
mock_path_exists, mock_ip_set, *args):
linux_net.ensure_bridge("br0")
calls = [
mock.call('brctl', 'addbr', 'br0'),
mock.call('brctl', 'setfd', 'br0', 0),
mock.call('brctl', 'stp', 'br0', "off"),
mock.call('brctl', 'setageing', 'br0', 0),
mock.call('tee', '/sys/class/net/br0/bridge/multicast_snooping',
check_exit_code=[0, 1], process_input='0'),
]
mock_execute.assert_has_calls(calls)
mock_dev_exists.assert_has_calls([mock.call("br0")])
mock_ip_set.assert_called_once_with('br0', state='up',
check_exit_code=[0, 2, 254])
@mock.patch.object(linux_net, "_arp_filtering")
@mock.patch.object(ip_lib, "set")
@mock.patch.object(os.path, "exists", return_value=True)
@mock.patch.object(processutils, "execute")
@mock.patch.object(linux_net, "device_exists", return_value=False)
def test_ensure_bridge_new_ipv6(self, mock_dev_exists, mock_execute,
mock_path_exists, mock_ip_set, *args):
linux_net.ensure_bridge("br0")
calls = [
mock.call('brctl', 'addbr', 'br0'),
mock.call('brctl', 'setfd', 'br0', 0),
mock.call('brctl', 'stp', 'br0', "off"),
mock.call('brctl', 'setageing', 'br0', 0),
mock.call('tee', '/sys/class/net/br0/bridge/multicast_snooping',
check_exit_code=[0, 1], process_input='0'),
mock.call('tee', '/proc/sys/net/ipv6/conf/br0/disable_ipv6',
check_exit_code=[0, 1], process_input='1'),
]
mock_execute.assert_has_calls(calls)
mock_dev_exists.assert_has_calls([mock.call("br0")])
mock_ip_set.assert_called_once_with('br0', state='up',
check_exit_code=[0, 2, 254])
@mock.patch.object(processutils, "execute")
@mock.patch.object(linux_net, "device_exists", return_value=False)
@mock.patch.object(linux_net, "interface_in_bridge", return_value=False)
def test_delete_bridge_none(self, mock_interface_br, mock_dev_exists,
mock_execute,):
linux_net.delete_bridge("br0", "vnet1")
mock_execute.assert_not_called()
mock_dev_exists.assert_has_calls([mock.call("br0")])
mock_interface_br.assert_not_called()
@mock.patch.object(ip_lib, "set")
@mock.patch.object(processutils, "execute")
@mock.patch.object(linux_net, "device_exists", return_value=True)
@mock.patch.object(linux_net, "interface_in_bridge", return_value=True)
def test_delete_bridge_exists(self, mock_interface_br, mock_dev_exists,
mock_execute, mock_ip_set):
linux_net.delete_bridge("br0", "vnet1")
calls = [
mock.call('brctl', 'delif', 'br0', 'vnet1'),
mock.call('brctl', 'delbr', 'br0')]
mock_execute.assert_has_calls(calls)
mock_dev_exists.assert_has_calls([mock.call("br0")])
mock_interface_br.assert_called_once_with("br0", "vnet1")
mock_ip_set.assert_called_once_with('br0', state='down')
@mock.patch.object(ip_lib, "set")
@mock.patch.object(processutils, "execute")
@mock.patch.object(linux_net, "device_exists", return_value=True)
@mock.patch.object(linux_net, "interface_in_bridge", return_value=False)
def test_delete_interface_not_present(self,
mock_interface_br, mock_dev_exists, mock_execute, mock_ip_set):
linux_net.delete_bridge("br0", "vnet1")
mock_execute.assert_called_once_with('brctl', 'delbr', 'br0')
mock_dev_exists.assert_has_calls([mock.call("br0")])
mock_interface_br.assert_called_once_with("br0", "vnet1")
mock_ip_set.assert_called_once_with('br0', state='down')
@mock.patch.object(processutils, "execute")
def test_add_bridge_port(self, mock_execute):
linux_net.add_bridge_port("br0", "vnet1")
mock_execute.assert_has_calls([
mock.call('brctl', 'addif', 'br0', 'vnet1')])
def test_ovs_vif_port_cmd(self):
expected = ['--', '--may-exist', 'add-port',
'fake-bridge', 'fake-dev',
'--', 'set', 'Interface', 'fake-dev',
'external-ids:iface-id=fake-iface-id',
'external-ids:iface-status=active',
'external-ids:attached-mac=fake-mac',
'external-ids:vm-uuid=fake-instance-uuid']
cmd = linux_net._create_ovs_vif_cmd('fake-bridge', 'fake-dev',
'fake-iface-id', 'fake-mac',
'fake-instance-uuid')
self.assertEqual(expected, cmd)
expected += ['type=fake-type']
cmd = linux_net._create_ovs_vif_cmd('fake-bridge', 'fake-dev',
'fake-iface-id', 'fake-mac',
'fake-instance-uuid',
'fake-type')
self.assertEqual(expected, cmd)
expected += ['options:vhost-server-path=/fake/path']
cmd = linux_net._create_ovs_vif_cmd('fake-bridge', 'fake-dev',
'fake-iface-id', 'fake-mac',
'fake-instance-uuid',
'fake-type',
vhost_server_path='/fake/path')
self.assertEqual(expected, cmd)
@mock.patch.object(linux_net, '_create_ovs_bridge_cmd')
@mock.patch.object(linux_net, '_ovs_vsctl')
def test_ensure_ovs_bridge(self, mock_vsctl, mock_create_ovs_bridge):
bridge = 'fake-bridge'
dp_type = 'fake-type'
linux_net.ensure_ovs_bridge(bridge, dp_type)
mock_create_ovs_bridge.assert_called_once_with(bridge, dp_type)
self.assertTrue(mock_vsctl.called)
def test_create_ovs_bridge_cmd(self):
bridge = 'fake-bridge'
dp_type = 'fake-type'
expected = ['--', '--may-exist', 'add-br', bridge,
'--', 'set', 'Bridge', bridge,
'datapath_type=%s' % dp_type]
actual = linux_net._create_ovs_bridge_cmd(bridge, dp_type)
self.assertEqual(expected, actual)
@mock.patch.object(linux_net, '_ovs_supports_mtu_requests')
@mock.patch.object(linux_net, '_ovs_vsctl')
@mock.patch.object(linux_net, '_create_ovs_vif_cmd')
@mock.patch.object(linux_net, '_set_device_mtu')
def test_ovs_vif_port_with_type_vhostuser(self, mock_set_device_mtu,
mock_create_cmd, mock_vsctl,
mock_ovs_supports_mtu_requests):
mock_ovs_supports_mtu_requests.return_value = True
linux_net.create_ovs_vif_port(
'fake-bridge',
'fake-dev', 'fake-iface-id', 'fake-mac',
"fake-instance-uuid", mtu=1500,
interface_type=constants.OVS_VHOSTUSER_INTERFACE_TYPE)
mock_create_cmd.assert_called_once_with('fake-bridge',
'fake-dev', 'fake-iface-id', 'fake-mac',
"fake-instance-uuid", constants.OVS_VHOSTUSER_INTERFACE_TYPE,
None)
self.assertFalse(mock_set_device_mtu.called)
self.assertTrue(mock_vsctl.called)
@mock.patch.object(linux_net, '_ovs_supports_mtu_requests')
@mock.patch.object(linux_net, '_ovs_vsctl')
@mock.patch.object(linux_net, '_create_ovs_vif_cmd')
@mock.patch.object(linux_net, '_set_device_mtu')
def test_ovs_vif_port_with_type_vhostuserclient(self,
mock_set_device_mtu, mock_create_cmd,
mock_vsctl, mock_ovs_supports_mtu_requests):
mock_ovs_supports_mtu_requests.return_value = True
linux_net.create_ovs_vif_port(
'fake-bridge',
'fake-dev', 'fake-iface-id', 'fake-mac',
"fake-instance-uuid", mtu=1500,
interface_type=constants.OVS_VHOSTUSER_CLIENT_INTERFACE_TYPE,
vhost_server_path="/fake/path")
mock_create_cmd.assert_called_once_with('fake-bridge',
'fake-dev', 'fake-iface-id', 'fake-mac',
"fake-instance-uuid",
constants.OVS_VHOSTUSER_CLIENT_INTERFACE_TYPE,
"/fake/path")
self.assertFalse(mock_set_device_mtu.called)
self.assertTrue(mock_vsctl.called)
@mock.patch.object(linux_net, '_ovs_supports_mtu_requests')
@mock.patch.object(linux_net, '_ovs_vsctl')
@mock.patch.object(linux_net, '_create_ovs_vif_cmd')
@mock.patch.object(linux_net, '_set_device_mtu')
def test_ovs_vif_port_with_no_mtu(self, mock_set_device_mtu,
mock_create_cmd, mock_vsctl,
mock_ovs_supports_mtu_requests):
mock_ovs_supports_mtu_requests.return_value = True
linux_net.create_ovs_vif_port(
'fake-bridge',
'fake-dev', 'fake-iface-id', 'fake-mac',
"fake-instance-uuid")
mock_create_cmd.assert_called_once_with('fake-bridge',
'fake-dev', 'fake-iface-id', 'fake-mac',
"fake-instance-uuid", None, None)
self.assertFalse(mock_set_device_mtu.called)
self.assertTrue(mock_vsctl.called)
@mock.patch.object(linux_net, '_ovs_supports_mtu_requests')
@mock.patch.object(linux_net, '_set_mtu_request')
@mock.patch.object(linux_net, '_ovs_vsctl')
@mock.patch.object(linux_net, '_create_ovs_vif_cmd',
return_value='ovs_command')
@mock.patch.object(linux_net, '_set_device_mtu')
def test_ovs_vif_port_with_timeout(self, mock_set_device_mtu,
mock_create_cmd, mock_vsctl,
mock_set_mtu_request,
mock_ovs_supports_mtu_requests):
mock_ovs_supports_mtu_requests.return_value = True
linux_net.create_ovs_vif_port(
'fake-bridge',
'fake-dev', 'fake-iface-id', 'fake-mac',
"fake-instance-uuid", timeout=42)
self.assertTrue(mock_create_cmd.called)
self.assertFalse(mock_set_device_mtu.called)
mock_vsctl.assert_called_with('ovs_command', timeout=42)
@mock.patch.object(linux_net, '_ovs_supports_mtu_requests')
@mock.patch.object(linux_net, '_set_mtu_request')
@mock.patch.object(linux_net, '_ovs_vsctl')
@mock.patch.object(linux_net, '_create_ovs_vif_cmd',
return_value='ovs_command')
@mock.patch.object(linux_net, '_set_device_mtu')
def test_ovs_vif_port_with_no_timeout(self, mock_set_device_mtu,
mock_create_cmd, mock_vsctl,
mock_set_mtu_request,
mock_ovs_supports_mtu_requests):
mock_ovs_supports_mtu_requests.return_value = True
linux_net.create_ovs_vif_port(
'fake-bridge',
'fake-dev', 'fake-iface-id', 'fake-mac',
"fake-instance-uuid")
self.assertTrue(mock_create_cmd.called)
self.assertFalse(mock_set_device_mtu.called)
mock_vsctl.assert_called_with('ovs_command', timeout=None)
@mock.patch.object(processutils, "execute")
def test_ovs_vsctl(self, mock_execute):
args = ['fake-args', 42]
timeout = 42
linux_net._ovs_vsctl(args)
linux_net._ovs_vsctl(args, timeout=timeout)
mock_execute.assert_has_calls([
mock.call('ovs-vsctl', *args),
mock.call('ovs-vsctl', '--timeout=%s' % timeout, *args)])
@mock.patch.object(linux_net, '_ovs_vsctl')
def test_set_mtu_request(self, mock_vsctl):
dev = 'fake-dev'
mtu = 'fake-mtu'
timeout = 120
linux_net._set_mtu_request(dev, mtu, timeout=timeout)
args = ['--', 'set', 'interface', dev,
'mtu_request=%s' % mtu]
mock_vsctl.assert_called_with(args, timeout=timeout)
@mock.patch.object(linux_net, '_delete_net_dev')
@mock.patch.object(linux_net, '_ovs_vsctl')
def test_delete_ovs_vif_port_delete_netdev(
self, mock_vsctl, mock_delete_net_dev):
bridge = 'fake-bridge'
dev = 'fake-dev'
timeout = 120
linux_net.delete_ovs_vif_port(bridge, dev, timeout=timeout)
args = ['--', '--if-exists', 'del-port', bridge, dev]
mock_vsctl.assert_called_with(args, timeout=timeout)
mock_delete_net_dev.assert_called()
@mock.patch.object(linux_net, '_delete_net_dev')
@mock.patch.object(linux_net, '_ovs_vsctl')
def test_delete_ovs_vif_port(self, mock_vsctl, mock_delete_net_dev):
bridge = 'fake-bridge'
dev = 'fake-dev'
timeout = 120
linux_net.delete_ovs_vif_port(
bridge, dev, timeout=timeout, delete_netdev=False)
args = ['--', '--if-exists', 'del-port', bridge, dev]
mock_vsctl.assert_called_with(args, timeout=timeout)
mock_delete_net_dev.assert_not_called()
@mock.patch.object(linux_net, '_ovs_vsctl')
def test_ovs_supports_mtu_requests(self, mock_vsctl):
args = ['--columns=mtu_request', 'list', 'interface']
timeout = 120
msg = 'ovs-vsctl: Interface does not contain' + \
' a column whose name matches "mtu_request"'
mock_vsctl.return_value = (None, msg)
result = linux_net._ovs_supports_mtu_requests(timeout=timeout)
mock_vsctl.assert_called_with(args, timeout=timeout)
self.assertFalse(result)
mock_vsctl.return_value = (None, None)
result = linux_net._ovs_supports_mtu_requests(timeout=timeout)
mock_vsctl.assert_called_with(args, timeout=timeout)
self.assertTrue(result)
@mock.patch('six.moves.builtins.open')
@mock.patch.object(os.path, 'isfile')
def test_is_switchdev_ioerror(self, mock_isfile, mock_open):
mock_isfile.side_effect = [True]
mock_open.return_value.__enter__ = lambda s: s
readline_mock = mock_open.return_value.readline
readline_mock.side_effect = (
[IOError()])
test_switchdev = linux_net._is_switchdev('pf_ifname')
self.assertEqual(test_switchdev, False)
@mock.patch('six.moves.builtins.open')
@mock.patch.object(os.path, 'isfile')
def test_is_switchdev_empty(self, mock_isfile, mock_open):
mock_isfile.side_effect = [True]
mock_open.return_value.__enter__ = lambda s: s
readline_mock = mock_open.return_value.readline
readline_mock.side_effect = (
[''])
open_calls = (
[mock.call('/sys/class/net/pf_ifname/phys_switch_id', 'r'),
mock.call().readline(),
mock.call().__exit__(None, None, None)])
test_switchdev = linux_net._is_switchdev('pf_ifname')
mock_open.assert_has_calls(open_calls)
self.assertEqual(test_switchdev, False)
@mock.patch('six.moves.builtins.open')
@mock.patch.object(os.path, 'isfile')
def test_is_switchdev_positive(self, mock_isfile, mock_open):
mock_isfile.side_effect = [True]
mock_open.return_value.__enter__ = lambda s: s
readline_mock = mock_open.return_value.readline
readline_mock.side_effect = (
['pf_sw_id'])
open_calls = (
[mock.call('/sys/class/net/pf_ifname/phys_switch_id', 'r'),
mock.call().readline(),
mock.call().__exit__(None, None, None)])
test_switchdev = linux_net._is_switchdev('pf_ifname')
mock_open.assert_has_calls(open_calls)
self.assertEqual(test_switchdev, True)
def test_parse_vf_number(self):
self.assertEqual(linux_net._parse_vf_number("0"), "0")
self.assertEqual(linux_net._parse_vf_number("pf13vf42"), "42")
self.assertEqual(linux_net._parse_vf_number("VF19@PF13"), "19")
self.assertIsNone(linux_net._parse_vf_number("p7"))
self.assertIsNone(linux_net._parse_vf_number("pf31"))
self.assertIsNone(linux_net._parse_vf_number("g4rbl3d"))
def test_parse_pf_number(self):
self.assertIsNone(linux_net._parse_pf_number("0"))
self.assertEqual(linux_net._parse_pf_number("pf13vf42"), "13")
self.assertEqual(linux_net._parse_pf_number("VF19@PF13"), "13")
self.assertIsNone(linux_net._parse_pf_number("p7"))
self.assertEqual(linux_net._parse_pf_number("pf31"), "31")
self.assertIsNone(linux_net._parse_pf_number("g4rbl3d"))
@mock.patch('six.moves.builtins.open')
@mock.patch.object(os.path, 'isfile')
@mock.patch.object(os, 'listdir')
@mock.patch.object(linux_net, "get_function_by_ifname")
def test_get_representor_port(self, mock_get_function_by_ifname,
mock_listdir, mock_isfile, mock_open):
mock_listdir.return_value = [
'pf_ifname', 'rep_vf_1', 'rep_vf_2'
]
mock_isfile.side_effect = [True, True]
mock_open.return_value.__enter__ = lambda s: s
readline_mock = mock_open.return_value.readline
readline_mock.side_effect = (
['pf_sw_id', 'pf_sw_id', '1', 'pf_sw_id', 'pf0vf2'])
# PCI IDs mocked:
# PF0: 0000:0a:00.0
# PF0VF1: 0000:0a:02.1 PF0VF2: 0000:0a:02.2
mock_get_function_by_ifname.side_effect = (
[("0000:0a:00.0", True),
("0000:0a:02.1", False),
("0000:0a:02.2", False), ("0000:0a:00.0", True)])
open_calls = (
[mock.call('/sys/class/net/pf_ifname/phys_switch_id', 'r'),
mock.call().readline(),
mock.call().__exit__(None, None, None),
mock.call('/sys/class/net/rep_vf_1/phys_switch_id', 'r'),
mock.call().readline(),
mock.call().__exit__(None, None, None),
mock.call('/sys/class/net/rep_vf_1/phys_port_name', 'r'),
mock.call().readline(),
mock.call().__exit__(None, None, None),
mock.call('/sys/class/net/rep_vf_2/phys_switch_id', 'r'),
mock.call().readline(),
mock.call().__exit__(None, None, None),
mock.call('/sys/class/net/rep_vf_2/phys_port_name', 'r'),
mock.call().readline(),
mock.call().__exit__(None, None, None)])
ifname = linux_net.get_representor_port('pf_ifname', '2')
mock_open.assert_has_calls(open_calls)
self.assertEqual('rep_vf_2', ifname)
@mock.patch('six.moves.builtins.open')
@mock.patch.object(os.path, 'isfile')
@mock.patch.object(os, 'listdir')
@mock.patch.object(linux_net, "get_function_by_ifname")
def test_get_representor_port_2_pfs(
self, mock_get_function_by_ifname, mock_listdir, mock_isfile,
mock_open):
mock_listdir.return_value = [
'pf_ifname1', 'pf_ifname2', 'rep_pf1_vf_1', 'rep_pf1_vf_2',
'rep_pf2_vf_1', 'rep_pf2_vf_2',
]
mock_isfile.side_effect = [True, True, True, True]
mock_open.return_value.__enter__ = lambda s: s
readline_mock = mock_open.return_value.readline
readline_mock.side_effect = (
['pf_sw_id',
'pf_sw_id', 'VF1@PF1', 'pf_sw_id', 'vf2@pf1',
'pf_sw_id', 'pf2vf1', 'pf_sw_id', 'pf2vf2'])
# PCI IDs mocked:
# PF1: 0000:0a:00.1 PF2: 0000:0a:00.2
# PF1VF1: 0000:0a:02.1 PF1VF2: 0000:0a:02.2
# PF2VF1: 0000:0a:04.1 PF2VF2: 0000:0a:04.2
mock_get_function_by_ifname.side_effect = (
[("0000:0a:00.1", True), ("0000:0a:00.2", True),
("0000:0a:02.1", False), ("0000:0a:00.2", True),
("0000:0a:02.2", False), ("0000:0a:00.2", True),
("0000:0a:04.1", False), ("0000:0a:00.2", True),
("0000:0a:04.2", False), ("0000:0a:00.2", True)])
ifname = linux_net.get_representor_port('pf_ifname2', '2')
self.assertEqual('rep_pf2_vf_2', ifname)
@mock.patch('six.moves.builtins.open')
@mock.patch.object(os.path, 'isfile')
@mock.patch.object(os, 'listdir')
@mock.patch.object(linux_net, "get_function_by_ifname")
def test_get_representor_port_not_found(
self, mock_get_function_by_ifname, mock_listdir, mock_isfile,
mock_open):
mock_listdir.return_value = [
'pf_ifname', 'rep_vf_1', 'rep_vf_2'
]
mock_isfile.side_effect = [True, True]
mock_open.return_value.__enter__ = lambda s: s
readline_mock = mock_open.return_value.readline
readline_mock.side_effect = (
['pf_sw_id', 'pf_sw_id', '1', 'pf_sw_id', '2'])
# PCI IDs mocked:
# PF0: 0000:0a:00.0
# PF0VF1: 0000:0a:02.1 PF0VF2: 0000:0a:02.2
mock_get_function_by_ifname.side_effect = (
[("0000:0a:00.0", True),
("0000:0a:02.1", False),
("0000:0a:02.2", False)])
self.assertRaises(
exception.RepresentorNotFound,
linux_net.get_representor_port,
'pf_ifname', '3'),
@mock.patch('six.moves.builtins.open')
@mock.patch.object(os.path, 'isfile')
@mock.patch.object(os, 'listdir')
@mock.patch.object(linux_net, "get_function_by_ifname")
def test_get_representor_port_exception_io_error(
self, mock_get_function_by_ifname, mock_listdir, mock_isfile,
mock_open):
mock_listdir.return_value = [
'pf_ifname', 'rep_vf_1', 'rep_vf_2'
]
mock_isfile.side_effect = [True, True]
mock_open.return_value.__enter__ = lambda s: s
readline_mock = mock_open.return_value.readline
readline_mock.side_effect = (
['pf_sw_id', 'pf_sw_id', IOError(), 'pf_sw_id', '2'])
# PCI IDs mocked:
# PF0: 0000:0a:00.0
# PF0VF1: 0000:0a:02.1 PF0VF2: 0000:0a:02.2
mock_get_function_by_ifname.side_effect = (
[("0000:0a:00.0", True),
("0000:0a:02.1", False),
("0000:0a:02.2", False), ("0000:0a:00.0", True)])
self.assertRaises(
exception.RepresentorNotFound,
linux_net.get_representor_port,
'pf_ifname', '3')
@mock.patch('six.moves.builtins.open')
@mock.patch.object(os.path, 'isfile')
@mock.patch.object(os, 'listdir')
@mock.patch.object(linux_net, "get_function_by_ifname")
def test_get_representor_port_exception_value_error(
self, mock_get_function_by_ifname, mock_listdir, mock_isfile,
mock_open):
mock_listdir.return_value = [
'pf_ifname', 'rep_vf_1', 'rep_vf_2'
]
mock_isfile.side_effect = [True, True]
mock_open.return_value.__enter__ = lambda s: s
readline_mock = mock_open.return_value.readline
readline_mock.side_effect = (
['pf_sw_id', 'pf_sw_id', '1', 'pf_sw_id', 'a'])
# PCI IDs mocked:
# PF0: 0000:0a:00.0
# PF0VF1: 0000:0a:02.1 PF0VF2: 0000:0a:02.2
mock_get_function_by_ifname.side_effect = (
[("0000:0a:00.0", True),
("0000:0a:02.1", False),
("0000:0a:02.2", False)])
self.assertRaises(
exception.RepresentorNotFound,
linux_net.get_representor_port,
'pf_ifname', '3')
@mock.patch('six.moves.builtins.open')
@mock.patch.object(os.path, 'isfile')
@mock.patch.object(os, 'listdir')
def test_physical_function_inferface_name(
self, mock_listdir, mock_isfile, mock_open):
mock_listdir.return_value = ['foo', 'bar']
mock_isfile.side_effect = [True, True]
mock_open.return_value.__enter__ = lambda s: s
readline_mock = mock_open.return_value.readline
readline_mock.side_effect = (
['', 'valid_switch'])
ifname = linux_net.get_ifname_by_pci_address(
'0000:00:00.1', pf_interface=True, switchdev=False)
self.assertEqual(ifname, 'foo')
@mock.patch('six.moves.builtins.open')
@mock.patch.object(os.path, 'isfile')
@mock.patch.object(os, 'listdir')
def test_physical_function_inferface_name_with_switchdev(
self, mock_listdir, mock_isfile, mock_open):
mock_listdir.return_value = ['foo', 'bar']
mock_isfile.side_effect = [True, True]
mock_open.return_value.__enter__ = lambda s: s
readline_mock = mock_open.return_value.readline
readline_mock.side_effect = (
['', 'valid_switch'])
ifname = linux_net.get_ifname_by_pci_address(
'0000:00:00.1', pf_interface=True, switchdev=True)
self.assertEqual(ifname, 'bar')
@mock.patch.object(os, 'listdir')
def test_get_ifname_by_pci_address_exception(self, mock_listdir):
mock_listdir.side_effect = OSError('No such file or directory')
self.assertRaises(
exception.PciDeviceNotFoundById,
linux_net.get_ifname_by_pci_address,
'0000:00:00.1'
)
@mock.patch.object(os, 'readlink')
@mock.patch.object(glob, 'iglob')
def test_vf_number_found(self, mock_iglob, mock_readlink):
mock_iglob.return_value = [
'/sys/bus/pci/devices/0000:00:00.1/physfn/virtfn3',
]
mock_readlink.return_value = '../../0000:00:00.1'
vf_num = linux_net.get_vf_num_by_pci_address('0000:00:00.1')
self.assertEqual(vf_num, '3')
@mock.patch.object(os, 'readlink')
@mock.patch.object(glob, 'iglob')
def test_vf_number_not_found(self, mock_iglob, mock_readlink):
mock_iglob.return_value = [
'/sys/bus/pci/devices/0000:00:00.1/physfn/virtfn3',
]
mock_readlink.return_value = '../../0000:00:00.2'
self.assertRaises(
exception.PciDeviceNotFoundById,
linux_net.get_vf_num_by_pci_address,
'0000:00:00.1'
)
@mock.patch.object(os, 'readlink')
@mock.patch.object(glob, 'iglob')
def test_get_vf_num_by_pci_address_exception(
self, mock_iglob, mock_readlink):
mock_iglob.return_value = [
'/sys/bus/pci/devices/0000:00:00.1/physfn/virtfn3',
]
mock_readlink.side_effect = OSError('No such file or directory')
self.assertRaises(
exception.PciDeviceNotFoundById,
linux_net.get_vf_num_by_pci_address,
'0000:00:00.1'
)
@mock.patch.object(os.path, 'exists', return_value=True)
@mock.patch.object(builtins, 'open')
def test__arp_filtering(self, mock_open, *args):
mock_open.side_effect = mock.mock_open(read_data=mock.Mock())
linux_net._arp_filtering("br0")
mock_open.assert_has_calls([
mock.call('/proc/sys/net/ipv4/conf/br0/arp_ignore', 'w'),
mock.call('/proc/sys/net/ipv4/conf/br0/arp_announce', 'w')])
mock_open.side_effect.return_value.write.assert_has_calls([
mock.call('1'),
mock.call('2')])