def veth_pair(prefix='veth_', max_length=15):
"""
Yield a pair of veth devices. This assumes root privileges (currently
required by all tests anyway).
Both sides of the pair have a pseudo-random suffix (e.g. veth_m6Lz7uMK9c).
"""
left_side = random_iface_name(prefix, max_length)
right_side = random_iface_name(prefix, max_length)
try:
linkAdd(left_side, linkType='veth', args=('peer', 'name', right_side))
if nmstate.is_nmstate_backend():
cmd.exec_sync(['nmcli', 'dev', 'set', left_side, 'managed', 'yes'])
cmd.exec_sync(
['nmcli', 'dev', 'set', right_side, 'managed', 'yes'])
except IPRoute2Error as e:
pytest.skip('Failed to create a veth pair: %s', e)
try:
yield left_side, right_side
finally:
# the peer device is removed by the kernel
linkDel(left_side)
if nmstate.is_nmstate_backend():
cmd.exec_sync(['nmcli', 'con', 'del', left_side])
cmd.exec_sync(['nmcli', 'con', 'del', right_side])
def remove(self):
"""
Remove the dummy interface. This assumes root privileges.
"""
try:
linkDel(self.devName)
except IPRoute2Error as e:
raise SkipTest("Unable to delete the dummy interface %s: %s" %
(self.devName, e))
def remove(self):
"""
Remove the dummy interface. This assumes root privileges.
"""
try:
linkDel(self.devName)
except IPRoute2Error as e:
raise SkipTest("Unable to delete the dummy interface %s: %s" %
(self.devName, e))
def vlan(name, link, vlan_id):
ipwrapper.linkAdd(name, 'vlan', link=link, args=['id', str(vlan_id)])
try:
yield
finally:
try:
ipwrapper.linkDel(name)
except ipwrapper.IPRoute2Error:
# faultyGetLinks is expected to have already removed the vlan
# device.
pass
def vlan(name, link, vlan_id):
ipwrapper.linkAdd(name, 'vlan', link=link, args=['id', str(vlan_id)])
try:
yield
finally:
try:
ipwrapper.linkDel(name)
except ipwrapper.IPRoute2Error:
# faultyGetLinks is expected to have already removed the vlan
# device.
pass
def remove(self):
"""
Remove the dummy interface. This assumes root privileges.
"""
try:
linkDel(self.devName)
except IPRoute2Error as e:
pytest.skip("Unable to delete the dummy interface %s: %s" %
(self.devName, e))
finally:
cmd.exec_sync(['nmcli', 'con', 'del', self.devName])
def remove(self):
"""
Remove the dummy interface. This assumes root privileges.
"""
try:
linkDel(self.devName)
except IPRoute2Error as e:
raise SkipTest("Unable to delete the dummy interface %s: %s" %
(self.devName, e))
finally:
if nmstate.is_nmstate_backend():
cmd.exec_sync(['nmcli', 'con', 'del', self.devName])
def test_replace_broken_network(self, bridged):
with dummy_device() as nic:
NETCREATE = {NETWORK_NAME: {'nic': nic, 'vlan': VLANID,
'bridged': bridged}}
with adapter.setupNetworks(NETCREATE, {}, NOCHK):
if bridged:
ipwrapper.linkDel(NETWORK_NAME)
else:
ipwrapper.linkDel(
nic + '.' + str(NETCREATE[NETWORK_NAME]['vlan']))
adapter.refresh_netinfo()
adapter.assertNoNetworkExists(NETWORK_NAME)
with adapter.setupNetworks(NETCREATE, {}, NOCHK):
adapter.assertNetworkExists(NETWORK_NAME)
def veth_pair(prefix='veth_', max_length=15):
"""
Yield a pair of veth devices. This assumes root privileges (currently
required by all tests anyway).
Both sides of the pair have a pseudo-random suffix (e.g. veth_m6Lz7uMK9c).
"""
left_side = random_iface_name(prefix, max_length)
right_side = random_iface_name(prefix, max_length)
try:
linkAdd(left_side, linkType='veth', args=('peer', 'name', right_side))
except IPRoute2Error as e:
raise SkipTest('Failed to create a veth pair: %s', e)
try:
yield left_side, right_side
finally:
# the peer device is removed by the kernel
linkDel(left_side)
def veth_pair(prefix='veth_', max_length=15):
"""
Yield a pair of veth devices. This assumes root privileges (currently
required by all tests anyway).
Both sides of the pair have a pseudo-random suffix (e.g. veth_m6Lz7uMK9c).
"""
left_side = random_iface_name(prefix, max_length)
right_side = random_iface_name(prefix, max_length)
try:
linkAdd(left_side, linkType='veth',
args=('peer', 'name', right_side))
except IPRoute2Error as e:
raise SkipTest('Failed to create a veth pair: %s', e)
try:
yield left_side, right_side
finally:
# the peer device is removed by the kernel
linkDel(left_side)
def delDevice(self):
self._down()
linkDel(self.devName)
cmd.exec_sync(['nmcli', 'con', 'del', self.devName])
def removeVlan(self, vlan):
ipwrapper.linkDel(vlan.name)
def delDevice(self):
self._down()
linkDel(self.devName)
def faultyGetLinks():
all_links = list(original_getLinks())
ipwrapper.linkDel(self.NEW_VLAN)
return iter(all_links)
def test_missing_bridge_removal_fails(self):
with self.assertRaises(ipwrapper.IPRoute2NoDeviceError):
ipwrapper.linkDel('missing_bridge')
def faultyGetLinks():
all_links = list(original_getLinks())
ipwrapper.linkDel(self.NEW_VLAN)
return iter(all_links)
def test_missing_bridge_removal_fails(self):
with self.assertRaises(ipwrapper.IPRoute2NoDeviceError):
ipwrapper.linkDel('missing_bridge')
def _remove_device(device_name):
try:
ipwrapper.linkDel(device_name)
except ipwrapper.IPRoute2NoDeviceError:
logging.debug('Failed to remove device %s, '
'it does not exist' % (device_name, ))
def delDevice(self):
self._down()
linkDel(self.devName)
if nmstate.is_nmstate_backend():
cmd.exec_sync(['nmcli', 'con', 'del', self.devName])
def _remove_device(device_name):
try:
ipwrapper.linkDel(device_name)
except ipwrapper.IPRoute2NoDeviceError:
logging.debug('Failed to remove device %s, '
'it does not exist' % (device_name,))
def delDevice(self):
self._down()
linkDel(self.devName)
def _create_bridge(name):
linkAdd(name, 'bridge')
try:
yield
finally:
linkDel(name)
def remove(self):
linkDel(self.dev_name)
cmd.exec_sync(['nmcli', 'con', 'del', self.dev_name])