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# 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 os
import re
import time
from oslo_concurrency import processutils
from oslo_utils import excutils
from os_vif.internal.ip.api import ip as ip_lib
from os_vif.tests.functional import base
from os_vif.tests.functional import privsep
@privsep.os_vif_pctxt.entrypoint
def _execute_command(*args):
return processutils.execute(*args)
class ShellIpCommands(object):
def add_device(self, device, dev_type, peer=None, link=None,
vlan_id=None):
if 'vlan' == dev_type:
_execute_command('ip', 'link', 'add', 'link', link,
'name', device, 'type', dev_type, 'vlan', 'id',
vlan_id)
elif 'veth' == dev_type:
_execute_command('ip', 'link', 'add', device, 'type', dev_type,
'peer', 'name', peer)
elif 'dummy' == dev_type:
_execute_command('ip', 'link', 'add', device, 'type', dev_type)
# ensure that the device exists to prevent racing
# with other ip commands
for _ in range(10):
if self.exist_device(device):
return
time.sleep(0.1)
def del_device(self, device):
if self.exist_device(device):
_execute_command('ip', 'link', 'del', device)
def set_status_up(self, device):
_execute_command('ip', 'link', 'set', device, 'up')
def set_status_down(self, device):
_execute_command('ip', 'link', 'set', device, 'down')
def set_device_mtu(self, device, mtu):
_execute_command('ip', 'link', 'set', device, 'mtu', mtu)
def show_device(self, device):
val, err = _execute_command('ip', 'link', 'show', device)
return val.splitlines()
def exist_device(self, device):
try:
_execute_command('ip', 'link', 'show', device)
return True
except processutils.ProcessExecutionError as e:
with excutils.save_and_reraise_exception() as saved_exception:
if e.exit_code == 1:
saved_exception.reraise = False
return False
def show_state(self, device):
regex = re.compile(r".*state (?P<state>\w+)")
match = regex.match(self.show_device(device)[0])
if match is None:
return
return match.group('state')
def show_promisc(self, device):
regex = re.compile(r".*(PROMISC)")
match = regex.match(self.show_device(device)[0])
return True if match else False
def show_mac(self, device):
exp = r".*link/ether (?P<mac>([0-9A-Fa-f]{2}[:]){5}[0-9A-Fa-f]{2})"
regex = re.compile(exp)
match = regex.match(self.show_device(device)[1])
if match is None:
return
return match.group('mac')
def show_mtu(self, device):
regex = re.compile(r".*mtu (?P<mtu>\d+)")
match = regex.match(self.show_device(device)[0])
if match is None:
return
return int(match.group('mtu'))
@privsep.os_vif_pctxt.entrypoint
def _ip_cmd_set(*args, **kwargs):
ip_lib.set(*args, **kwargs)
@privsep.os_vif_pctxt.entrypoint
def _ip_cmd_add(*args, **kwargs):
ip_lib.add(*args, **kwargs)
@privsep.os_vif_pctxt.entrypoint
def _ip_cmd_delete(*args, **kwargs):
ip_lib.delete(*args, **kwargs)
@privsep.os_vif_pctxt.entrypoint
def _ip_cmd_exists(*args, **kwargs):
return ip_lib.exists(*args, **kwargs)
class TestIpCommand(ShellIpCommands, base.BaseFunctionalTestCase):
def setUp(self):
super(TestIpCommand, self).setUp()
def test_set_state(self):
device1 = "test_dev_1"
device2 = "test_dev_2"
self.addCleanup(self.del_device, device1)
self.add_device(device1, 'veth', peer=device2)
_ip_cmd_set(device1, state='up')
_ip_cmd_set(device2, state='up')
self.assertEqual('UP', self.show_state(device1))
self.assertEqual('UP', self.show_state(device2))
_ip_cmd_set(device1, state='down')
_ip_cmd_set(device2, state='down')
self.assertEqual('DOWN', self.show_state(device1))
self.assertEqual('DOWN', self.show_state(device2))
def test_set_mtu(self):
device = "test_dev_3"
self.addCleanup(self.del_device, device)
self.add_device(device, 'dummy')
_ip_cmd_set(device, mtu=1200)
self.assertEqual(1200, self.show_mtu(device))
_ip_cmd_set(device, mtu=900)
self.assertEqual(900, self.show_mtu(device))
def test_set_address(self):
device = "test_dev_4"
address1 = "36:a7:e4:f9:01:01"
address2 = "36:a7:e4:f9:01:01"
self.addCleanup(self.del_device, device)
self.add_device(device, 'dummy')
_ip_cmd_set(device, address=address1)
self.assertEqual(address1, self.show_mac(device))
_ip_cmd_set(device, address=address2)
self.assertEqual(address2, self.show_mac(device))
def test_set_promisc(self):
device = "test_dev_5"
self.addCleanup(self.del_device, device)
self.add_device(device, 'dummy')
_ip_cmd_set(device, promisc=True)
self.assertTrue(self.show_promisc(device))
_ip_cmd_set(device, promisc=False)
self.assertFalse(self.show_promisc(device))
def test_add_vlan(self):
device = "test_dev_6"
link = "test_devlink"
self.addCleanup(self.del_device, device)
self.addCleanup(self.del_device, link)
self.add_device(link, 'dummy')
_ip_cmd_add(device, 'vlan', link=link, vlan_id=100)
self.assertTrue(self.exist_device(device))
def test_add_veth(self):
device = "test_dev_7"
peer = "test_devpeer"
self.addCleanup(self.del_device, device)
_ip_cmd_add(device, 'veth', peer=peer)
self.assertTrue(self.exist_device(device))
self.assertTrue(self.exist_device(peer))
def test_delete(self):
device = "test_dev_8"
self.addCleanup(self.del_device, device)
self.add_device(device, 'dummy')
self.assertTrue(self.exist_device(device))
_ip_cmd_delete(device)
self.assertFalse(self.exist_device(device))
def test_iproute_object_closes_correctly(self):
# NOTE(ralonsoh): check https://bugs.launchpad.net/os-vif/+bug/1807949
device = "test_dev_9"
link = "test_devlink_2"
self.add_device(link, 'dummy')
self.addCleanup(self.del_device, device)
self.addCleanup(self.del_device, link)
for _ in range(300):
_ip_cmd_add(device, 'vlan', link=link, vlan_id=100)
_ip_cmd_delete(device)
def test_exists(self):
device = "test_dev_10"
self.addCleanup(self.del_device, device)
self.add_device(device, 'dummy')
self.assertTrue(_ip_cmd_exists(device))
self.del_device(device)
self.assertFalse(_ip_cmd_exists(device))
def test_add_bridge(self):
device = "test_dev_11"
self.addCleanup(self.del_device, device)
_ip_cmd_add(device, 'bridge')
self.assertTrue(self.exist_device(device))
base_path = "/sys/class/net/test_dev_11/bridge/%s"
with open(base_path % "forward_delay", "r") as f:
self.assertEqual("0", f.readline().rstrip('\n'))
with open(base_path % "stp_state", "r") as f:
self.assertEqual("0", f.readline().rstrip('\n'))
with open(base_path % "multicast_snooping", "r") as f:
self.assertEqual("0", f.readline().rstrip('\n'))
with open(base_path % "ageing_time", "r") as f:
value = int(f.readline().rstrip('\n'))
# NOTE(sean-k-mooney): IEEE 8021-Q recommends that the default
# ageing should be 300 and the linux kernel defaults to 300
# via an unconditional define. As such we expect this to be
# 300 however since services like network-manager could change
# the default on bridge creation we check that if it is not 300
# then the value should not be 0.
self.assertTrue(300 == value or value != 0)
def test_add_bridge_with_mac_ageing_0(self):
device = "test_dev_12"
self.addCleanup(self.del_device, device)
_ip_cmd_add(device, 'bridge', ageing=0)
self.assertTrue(self.exist_device(device))
base_path = "/sys/class/net/test_dev_12/bridge/%s"
with open(base_path % "forward_delay", "r") as f:
self.assertEqual("0", f.readline().rstrip('\n'))
with open(base_path % "stp_state", "r") as f:
self.assertEqual("0", f.readline().rstrip('\n'))
with open(base_path % "ageing_time", "r") as f:
self.assertEqual("0", f.readline().rstrip('\n'))
with open(base_path % "multicast_snooping", "r") as f:
self.assertEqual("0", f.readline().rstrip('\n'))
def test_add_port_to_bridge(self):
device = "test_dev_13"
bridge = "test_dev_14"
self.addCleanup(self.del_device, device)
self.addCleanup(self.del_device, bridge)
self.add_device(device, 'dummy')
_ip_cmd_add(bridge, 'bridge')
self.assertTrue(self.exist_device(device))
self.assertTrue(self.exist_device(bridge))
_ip_cmd_set(device, master=bridge)
path = "/sys/class/net/{}/brif/{}".format(bridge, device)
self.assertTrue(os.path.exists(path))
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