def create_phy(self, network_uuid, device, MAC, MTU):
"""
Called when a new physical PIF is found
Could be a VLAN...
"""
# Create new uuids
pif_uuid = genuuid.createString()
metrics_uuid = genuuid.createString()
# Create instances
metrics = XendPIFMetrics(metrics_uuid, pif_uuid)
# Is this a VLAN?
VLANdot = device.split(".")
VLANcolon = device.split(":")
if len(VLANdot) > 1:
VLAN = VLANdot[1]
device = VLANdot[0]
elif len(VLANcolon) > 1:
VLAN = VLANcolon[1]
device = VLANcolon[0]
else:
VLAN = -1
record = {
'network': network_uuid,
'device': device,
'MAC': MAC,
'MTU': MTU,
'VLAN': VLAN
}
pif = XendPIF(record, pif_uuid, metrics_uuid)
return pif_uuid
def create_VLAN(self, device, network_uuid, host_ref, vlan):
"""Exposed via API - create a new VLAN from existing VIF"""
ifs = [name for name, _, _ in linux_get_phy_ifaces()]
vlan = int(vlan)
# Check VLAN tag is valid
if vlan < 0 or vlan >= 4096:
raise VLANTagInvalid(vlan)
# Check device exists
if device not in ifs:
raise InvalidDeviceError(device)
# Check VLAN doesn't already exist
if "%s.%d" % (device, vlan) in ifs:
raise DeviceExistsError("%s.%d" % (device, vlan))
# Check network ref is valid
from XendNetwork import XendNetwork
if network_uuid not in XendNetwork.get_all():
raise InvalidHandleError("Network", network_uuid)
# Check host_ref is this host
import XendNode
if host_ref != XendNode.instance().get_uuid():
raise InvalidHandleError("Host", host_ref)
# Create the VLAN
_create_VLAN(device, vlan)
# Create new uuids
pif_uuid = genuuid.createString()
metrics_uuid = genuuid.createString()
# Create the record
record = {
"device": device,
"MAC": '',
"MTU": '',
"network": network_uuid,
"VLAN": vlan
}
# Create instances
metrics = XendPIFMetrics(metrics_uuid, pif_uuid)
pif = XendPIF(record, pif_uuid, metrics_uuid)
# Not sure if they should be created plugged or not...
pif.plug()
XendNode.instance().save_PIFs()
return pif_uuid
def recreate(self, record, uuid):
"""Called on xend start / restart"""
pif_uuid = uuid
metrics_uuid = record['metrics']
# Create instances
metrics = XendPIFMetrics(metrics_uuid, pif_uuid)
pif = XendPIF(record, pif_uuid, metrics_uuid)
# If physical PIF, check exists
# If VLAN, create if not exist
ifs = [dev for dev, _1, _2 in linux_get_phy_ifaces()]
if pif.get_VLAN() == -1:
if pif.get_device() not in ifs:
XendBase.destroy(pif)
metrics.destroy()
return None
else:
if pif.get_interface_name() not in ifs:
_create_VLAN(pif.get_device(), pif.get_VLAN())
pif.plug()
return pif_uuid
def recreate(self, record, uuid):
"""Called on xend start / restart"""
pif_uuid = uuid
metrics_uuid = record['metrics']
# Create instances
metrics = XendPIFMetrics(metrics_uuid, pif_uuid)
pif = XendPIF(record, pif_uuid, metrics_uuid)
# If physical PIF, check exists
# If VLAN, create if not exist
ifs = [dev for dev, _1, _2 in linux_get_phy_ifaces()]
if pif.get_VLAN() == -1:
if pif.get_device() not in ifs:
XendBase.destroy(pif)
metrics.destroy()
return None
else:
if pif.get_interface_name() not in ifs:
_create_VLAN(pif.get_device(), pif.get_VLAN())
pif.plug()
return pif_uuid