def test_mac_address_ranges(self):
mr1_mac = netaddr.EUI("AA:AA:AA:00:00:00")
mr1 = {"cidr": "AA:AA:AA/24", "do_not_use": False,
"first_address": mr1_mac.value,
"last_address": netaddr.EUI("AA:AA:AA:FF:FF:FF").value,
"next_auto_assign_mac": mr1_mac.value}
with self._fixtures([mr1]):
with self.context.session.begin():
ranges = db_api.mac_address_range_find_allocation_counts(
self.context)
self.assertTrue(ranges[0]["cidr"], mr1["cidr"])
def test_mac_address_ranges(self):
mr1_mac = netaddr.EUI("AA:AA:AA:00:00:00")
mr1 = {
"cidr": "AA:AA:AA/24",
"do_not_use": False,
"first_address": mr1_mac.value,
"last_address": netaddr.EUI("AA:AA:AA:FF:FF:FF").value,
"next_auto_assign_mac": mr1_mac.value
}
with self._fixtures([mr1]):
with self.context.session.begin():
ranges = db_api.mac_address_range_find_allocation_counts(
self.context)
self.assertTrue(ranges[0]["cidr"], mr1["cidr"])
def allocate_mac_address(self,
context,
net_id,
port_id,
reuse_after,
mac_address=None):
if mac_address:
mac_address = netaddr.EUI(mac_address).value
deallocated_mac = db_api.mac_address_find(context,
reuse_after=reuse_after,
scope=db_api.ONE,
address=mac_address)
if deallocated_mac:
return db_api.mac_address_update(context,
deallocated_mac,
deallocated=False,
deallocated_at=None)
ranges = db_api.mac_address_range_find_allocation_counts(
context, address=mac_address)
for result in ranges:
rng, addr_count = result
if rng["last_address"] - rng["first_address"] <= addr_count:
continue
next_address = None
if mac_address:
next_address = mac_address
else:
address = True
while address:
next_address = rng["next_auto_assign_mac"]
rng["next_auto_assign_mac"] = next_address + 1
address = db_api.mac_address_find(
context,
tenant_id=context.tenant_id,
scope=db_api.ONE,
address=next_address)
address = db_api.mac_address_create(context,
address=next_address,
mac_address_range_id=rng["id"])
return address
raise exceptions.MacAddressGenerationFailure(net_id=net_id)
def allocate_mac_address(self, context, net_id, port_id, reuse_after,
mac_address=None):
if mac_address:
mac_address = netaddr.EUI(mac_address).value
with context.session.begin(subtransactions=True):
deallocated_mac = db_api.mac_address_find(
context, lock_mode=True, reuse_after=reuse_after,
scope=db_api.ONE, address=mac_address)
if deallocated_mac:
return db_api.mac_address_update(
context, deallocated_mac, deallocated=False,
deallocated_at=None)
with context.session.begin(subtransactions=True):
ranges = db_api.mac_address_range_find_allocation_counts(
context, address=mac_address)
for result in ranges:
rng, addr_count = result
last = rng["last_address"]
first = rng["first_address"]
if last - first <= addr_count:
continue
next_address = None
if mac_address:
next_address = mac_address
else:
address = True
while address:
next_address = rng["next_auto_assign_mac"]
rng["next_auto_assign_mac"] = next_address + 1
address = db_api.mac_address_find(
context, tenant_id=context.tenant_id,
scope=db_api.ONE, address=next_address)
address = db_api.mac_address_create(
context, address=next_address,
mac_address_range_id=rng["id"])
return address
raise exceptions.MacAddressGenerationFailure(net_id=net_id)
