def _preprocess_nics(network_details, network_adapters):
"""Check NICs and fill missing data if possible."""
# Initial checks.
if not network_adapters:
raise exception.CloudbaseInitException("no network adapters available")
# Sort VM adapters by name (assuming that those
# from the context are in correct order).
# Do this for a better matching by order
# if hardware address is missing.
network_adapters = sorted(network_adapters, key=lambda arg: arg[0])
refined_network_details = [] # store here processed interfaces
# Check and update every NetworkDetails object.
total = len(network_adapters)
for nic in network_details:
if not isinstance(nic, service_base.NetworkDetails):
raise exception.CloudbaseInitException(
"invalid NetworkDetails object {!r}".format(type(nic)))
# Check requirements.
final_status = True
for fields, status in NET_REQUIRE.items():
if not status:
continue # skip 'not required' entries
if not isinstance(fields, tuple):
fields = (fields, )
final_status = any([getattr(nic, field) for field in fields])
if not final_status:
break
address, netmask = nic.address, nic.netmask
if final_status:
# Additional check for info version.
if not (address and netmask):
final_status = nic.address6 and nic.netmask6
if final_status:
address = address or network.address6_to_4_truncate(
nic.address6)
netmask = netmask or network.netmask6_to_4_truncate(
nic.netmask6)
if not final_status:
LOG.error("Incomplete NetworkDetails object %s", nic)
continue
# Complete hardware address if missing by selecting
# the corresponding MAC in terms of naming, then ordering.
if not nic.mac:
# By name...
macs = [
adapter[1] for adapter in network_adapters
if adapter[0] == nic.name
]
mac = macs[0] if macs else None
# ...or by order.
idx = _name2idx(nic.name)
if not mac and idx < total:
mac = network_adapters[idx][1]
nic = service_base.NetworkDetails(nic.name, mac, address,
nic.address6, netmask,
nic.netmask6, nic.broadcast,
nic.gateway, nic.gateway6,
nic.dnsnameservers)
refined_network_details.append(nic)
return refined_network_details
def test_netmask6_to_4_truncate(self):
netmask_map = {
"128": "255.255.255.255",
"96": "255.255.255.0",
"0": "0.0.0.0",
"100": "255.255.255.128"
}
for v6, v4 in netmask_map.items():
self.assertEqual(v4, network.netmask6_to_4_truncate(v6))
def test_netmask6_to_4_truncate(self):
netmask_map = {
"128": "255.255.255.255",
"96": "255.255.255.0",
"0": "0.0.0.0",
"100": "255.255.255.128"
}
for v6, v4 in netmask_map.items():
self.assertEqual(v4, network.netmask6_to_4_truncate(v6))
def _preprocess_nics(network_details, network_adapters):
"""Check NICs and fill missing data if possible."""
# Initial checks.
if not network_adapters:
raise exception.CloudbaseInitException(
"no network adapters available")
# Sort VM adapters by name (assuming that those
# from the context are in correct order).
# Do this for a better matching by order
# if hardware address is missing.
network_adapters = sorted(network_adapters, key=lambda arg: arg[0])
refined_network_details = [] # store here processed interfaces
# Check and update every NetworkDetails object.
total = len(network_adapters)
for nic in network_details:
if not isinstance(nic, service_base.NetworkDetails):
raise exception.CloudbaseInitException(
"invalid NetworkDetails object {!r}"
.format(type(nic))
)
# Check requirements.
final_status = True
for fields, status in NET_REQUIRE.items():
if not status:
continue # skip 'not required' entries
if not isinstance(fields, tuple):
fields = (fields,)
final_status = any([getattr(nic, field) for field in fields])
if not final_status:
break
address, netmask = nic.address, nic.netmask
if final_status:
# Additional check for info version.
if not (address and netmask):
final_status = nic.address6 and nic.netmask6
if final_status:
address = address or network.address6_to_4_truncate(
nic.address6)
netmask = netmask or network.netmask6_to_4_truncate(
nic.netmask6)
if not final_status:
LOG.error("Incomplete NetworkDetails object %s", nic)
continue
# Complete hardware address if missing by selecting
# the corresponding MAC in terms of naming, then ordering.
if not nic.mac:
# By name...
macs = [adapter[1] for adapter in network_adapters
if adapter[0] == nic.name]
mac = macs[0] if macs else None
# ...or by order.
idx = _name2idx(nic.name)
if not mac and idx < total:
mac = network_adapters[idx][1]
nic = service_base.NetworkDetails(
nic.name,
mac,
address,
nic.address6,
netmask,
nic.netmask6,
nic.broadcast,
nic.gateway,
nic.gateway6,
nic.dnsnameservers
)
refined_network_details.append(nic)
return refined_network_details
