def create(self):
try:
linkAdd(self.devName, linkType='dummy')
except IPRoute2Error as e:
raise SkipTest('Failed to create a dummy interface %s: %s' %
(self.devName, e))
else:
return self.devName
def create(self):
try:
linkAdd(self.devName, linkType='dummy')
except IPRoute2Error as e:
raise SkipTest('Failed to create a dummy interface %s: %s' %
(self.devName, e))
else:
return self.devName
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 create(prefix='dummy_', max_length=11):
"""
Create a dummy interface with a pseudo-random suffix, e.g. dummy_ilXaYiSn7.
Limit the name to 11 characters to make room for VLAN IDs.
This assumes root privileges.
"""
dummy_name = random_iface_name(prefix, max_length)
try:
linkAdd(dummy_name, linkType='dummy')
except IPRoute2Error as e:
raise SkipTest('Failed to load a dummy interface %s: %s' %
(dummy_name, e))
else:
return dummy_name
def create(prefix='dummy_', max_length=11):
"""
Create a dummy interface with a pseudo-random suffix, e.g. dummy_ilXaYiSn7.
Limit the name to 11 characters to make room for VLAN IDs.
This assumes root privileges.
"""
dummy_name = random_iface_name(prefix, max_length)
try:
linkAdd(dummy_name, linkType='dummy')
except IPRoute2Error as e:
raise SkipTest('Failed to create a dummy interface %s: %s' %
(dummy_name, e))
else:
return dummy_name
def create(prefix='veth_', max_length=15):
"""
Create a veth interface with a pseudo-random suffix (e.g. veth_m6Lz7uMK9c)
for both endpoints. Use the longest possible name length by default.
This assumes root privileges.
"""
leftPoint = random_iface_name(prefix, max_length)
rightPoint = random_iface_name(prefix, max_length)
try:
linkAdd(leftPoint, linkType='veth', args=('peer', 'name', rightPoint))
except IPRoute2Error:
raise SkipTest('Failed to create a veth interface')
else:
return (leftPoint, rightPoint)
def 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))
yield left_side, right_side
except IPRoute2Error:
raise SkipTest("Failed to create a veth pair.")
finally:
# the peer device is removed by the kernel
dummy.remove(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))
yield left_side, right_side
except IPRoute2Error:
raise SkipTest('Failed to create a veth pair.')
finally:
# the peer device is removed by the kernel
linkDel(left_side)
def create(prefix='dummy_'):
"""
Creates a dummy interface, in a fixed number of attempts (100).
The dummy interface created has a pseudo-random name (e.g. dummy_85
in the format dummy_Number). Assumes root privileges.
"""
for i in random.sample(range(100), 100):
dummy_name = '%s%s' % (prefix, i)
try:
linkAdd(dummy_name, linkType='dummy')
except IPRoute2Error:
pass
else:
return dummy_name
raise SkipTest('Failed to load a dummy interface')
def create(prefix='veth_'):
"""
Creates a veth interface with a pseudo-random name for both endpoints (e.g.
veth_85 and veth_31 in the format veth_Number). Assumes root privileges.
"""
deviceNumbers = random.sample(range(100), 2)
leftPoint = '%s%s' % (prefix, deviceNumbers[0])
rightPoint = '%s%s' % (prefix, deviceNumbers[1])
try:
linkAdd(leftPoint, linkType='veth', args=('peer', 'name', rightPoint))
except IPRoute2Error:
pass
else:
return (leftPoint, rightPoint)
raise SkipTest('Failed to create a veth interface')
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 addVlan(self, vlan):
ipwrapper.linkAdd(name=vlan.name, linkType='vlan',
link=vlan.device.name, args=['id', str(vlan.tag)])
def addVlan(self, vlan):
ipwrapper.linkAdd(name=vlan.name,
linkType='vlan',
link=vlan.device.name,
args=['id', str(vlan.tag)])
def addDevice(self):
linkAdd(self.devName, 'bridge')
self.up()
def addDevice(self):
linkAdd(self.devName, 'vlan', link=self.backing_device_name,
args=['id', str(self.tag)])
self.up()
def addDevice(self):
linkAdd(self.devName,
'vlan',
link=self.backing_device_name,
args=['id', str(self.tag)])
self.up()
def addDevice(self):
linkAdd(self.devName, 'bridge')
self.up()
def addVlan(self, vlan):
ipwrapper.linkAdd(name=vlan.name, linkType="vlan", link=vlan.device.name, args=["id", str(vlan.tag)])
