def get_subscriber_table(self):
chan = ServiceRegistry.get_rpc_channel('mobilityd',
ServiceRegistry.LOCAL)
client = MobilityServiceStub(chan)
table = client.GetSubscriberIPTable(Void())
return table.entries
def setUp(self):
# Bind the rpc server to a free port
thread_pool = futures.ThreadPoolExecutor(max_workers=10)
self._rpc_server = grpc.server(thread_pool)
port = self._rpc_server.add_insecure_port('0.0.0.0:0')
# Create a mock "mconfig" for the servicer to use
mconfig = unittest.mock.Mock()
mconfig.ip_block = None
# Add the servicer
config = {'persist_to_redis': False, 'redis_port': None}
self._servicer = MobilityServiceRpcServicer(mconfig, config)
self._servicer.add_to_server(self._rpc_server)
self._rpc_server.start()
# Create a rpc stub
channel = grpc.insecure_channel('0.0.0.0:{}'.format(port))
self._stub = MobilityServiceStub(channel)
# variables shared across tests
self._netaddr = '192.168.0.0'
self._prefix_len = 28
ip_bytes = bytes(map(int, self._netaddr.split('.')))
self._block_msg = IPBlock(version=IPBlock.IPV4,
net_address=ip_bytes,
prefix_len=self._prefix_len)
self._block = ipaddress.ip_network("%s/%s" %
(self._netaddr, self._prefix_len))
self._sid0 = SIDUtils.to_pb('IMSI0')
self._sid1 = SIDUtils.to_pb('IMSI1')
self._sid2 = SIDUtils.to_pb('IMSI2')
self._apn0 = 'Internet'
self._apn1 = 'IMS'
def setUp(self):
# Bind the rpc server to a free port
thread_pool = futures.ThreadPoolExecutor(max_workers=10)
self._rpc_server = grpc.server(thread_pool)
port = self._rpc_server.add_insecure_port('0.0.0.0:0')
store = MobilityStore(get_default_client(), False, 3980)
store.dhcp_gw_info.read_default_gw()
ip_allocator = IpAllocatorPool(store)
ipv6_allocator = IPv6AllocatorPool(
store,
session_prefix_alloc_mode='RANDOM',
)
self._allocator = IPAddressManager(
ip_allocator,
ipv6_allocator,
store,
)
# Add the servicer
self._servicer = MobilityServiceRpcServicer(self._allocator, False)
self._servicer.add_to_server(self._rpc_server)
self._rpc_server.start()
# Create a rpc stub
channel = grpc.insecure_channel('0.0.0.0:{}'.format(port))
self._stub = MobilityServiceStub(channel)
# variables shared across tests
self._netaddr = '192.168.0.0'
self._prefix_len = 28
ip_bytes = bytes(map(int, self._netaddr.split('.')))
self._block_msg = IPBlock(
version=IPBlock.IPV4,
net_address=ip_bytes,
prefix_len=self._prefix_len,
)
self._ipv6_block = ipaddress.ip_network('fdee:5:6c::/48')
self._ipv6_netaddr = self._ipv6_block.network_address.packed
self._ipv6_block_msg = IPBlock(
version=IPBlock.IPV6,
net_address=self._ipv6_netaddr,
prefix_len=self._ipv6_block.prefixlen,
)
self._block = ipaddress.ip_network(
"%s/%s" % (self._netaddr, self._prefix_len),
)
self._sid0 = SIDUtils.to_pb('IMSI0')
self._sid1 = SIDUtils.to_pb('IMSI1')
self._sid2 = SIDUtils.to_pb('IMSI2')
self._apn0 = 'Internet'
self._apn1 = 'IMS'
async def get_ping_targets(self, service_loop) -> PingedTargets:
"""
Sends gRPC call to mobilityd to get all subscribers table.
Returns: List of [Subscriber ID => IP address, APN] entries
"""
ping_addresses = self.ping_addresses.copy()
ping_targets = self.ping_targets.copy()
try:
mobilityd_chan = ServiceRegistry.get_rpc_channel(
'mobilityd',
ServiceRegistry.LOCAL,
)
mobilityd_stub = MobilityServiceStub(mobilityd_chan)
response = await grpc_async_wrapper(
mobilityd_stub.GetSubscriberIPTable.future(
Void(),
10,
),
service_loop,
)
for sub in response.entries:
ip = _get_addr_from_subscribers(sub.ip)
ping_addresses.append(ip)
ping_targets[sub.sid.id] = ip
except grpc.RpcError as err:
logging.error(
"GetSubscribers Error for %s! %s",
err.code(),
err.details(),
)
return PingedTargets(ping_targets, ping_addresses)
def main():
parser = create_parser()
# Parse the args
args = parser.parse_args()
if not args.cmd:
parser.print_usage()
exit(1)
print('Preparing %s load test...' % args.cmd)
client = MobilityServiceStub(
ServiceRegistry.get_rpc_channel(
'mobilityd',
ServiceRegistry.LOCAL,
), )
if args.cmd == 'allocate':
_setup_ip_block(client)
_build_allocate_ip_data(args.num)
_benchmark_grpc_request(args, 'AllocateIPAddress')
_cleanup_subs()
elif args.cmd == 'release':
_build_release_ip_data(client)
_benchmark_grpc_request(args, 'ReleaseIPAddress')
print('Done')
def load(self):
"""
Instantiates and schedules the Ryu app eventlets in the service
eventloop.
"""
# Some setups might not use REDIS
if (self._magma_service.config['redis_enabled']):
# Wait for redis as multiple controllers rely on it
while not redisAvailable(self.rule_id_mapper.redis_cli):
logging.warning("Pipelined waiting for redis...")
time.sleep(1)
else:
self.rule_id_mapper._rule_nums_by_rule = {}
self.rule_id_mapper._rules_by_rule_num = {}
self.session_rule_version_mapper._version_by_imsi_and_rule = {}
self.interface_to_prefix_mapper._prefix_by_interface = {}
self.tunnel_id_mapper._tunnel_map = {}
manager = AppManager.get_instance()
manager.load_apps([app.module for app in self._apps])
contexts = manager.create_contexts()
contexts['rule_id_mapper'] = self.rule_id_mapper
contexts[
'session_rule_version_mapper'] = self.session_rule_version_mapper
contexts['interface_to_prefix_mapper'] = self.interface_to_prefix_mapper
contexts['tunnel_id_mapper'] = self.tunnel_id_mapper
contexts['app_futures'] = {app.name: Future() for app in self._apps}
contexts['internal_ip_allocator'] = \
InternalIPAllocator(self._magma_service.config)
contexts['config'] = self._magma_service.config
contexts['mconfig'] = self._magma_service.mconfig
contexts['loop'] = self._magma_service.loop
contexts['service_manager'] = self
sessiond_chan = ServiceRegistry.get_rpc_channel(
'sessiond', ServiceRegistry.LOCAL)
mobilityd_chan = ServiceRegistry.get_rpc_channel(
'mobilityd', ServiceRegistry.LOCAL)
contexts['rpc_stubs'] = {
'mobilityd': MobilityServiceStub(mobilityd_chan),
'sessiond': LocalSessionManagerStub(sessiond_chan),
}
# Instantiate and schedule apps
for app in manager.instantiate_apps(**contexts):
# Wrap the eventlet in asyncio so it will stop when the loop is
# stopped
future = aioeventlet.wrap_greenthread(app,
self._magma_service.loop)
# Schedule the eventlet for evaluation in service loop
asyncio.ensure_future(future)
# In development mode, run server so that
if environment.is_dev_mode():
server_thread = of_rest_server.start(manager)
future = aioeventlet.wrap_greenthread(server_thread,
self._magma_service.loop)
asyncio.ensure_future(future)
def set_mobilityd_gw_info(ip: IPAddress, mac: str, vlan: str):
"""
Make RPC call to 'SetGatewayInfo' method of local mobilityD service
"""
try:
chan = ServiceRegistry.get_rpc_channel(SERVICE_NAME,
ServiceRegistry.LOCAL)
except ValueError:
logging.error('Cant get RPC channel to %s', SERVICE_NAME)
return
client = MobilityServiceStub(chan)
try:
gwinfo = GWInfo(ip=ip, mac=mac, vlan=vlan)
client.SetGatewayInfo(gwinfo)
except grpc.RpcError as err:
logging.error("SetGatewayInfo error[%s] %s", err.code(), err.details())
def mobilityd_list_ip_blocks():
"""
Make RPC call to query all ip-blocks.
"""
try:
chan = ServiceRegistry.get_rpc_channel(SERVICE_NAME,
ServiceRegistry.LOCAL)
except ValueError:
logging.error('Cant get RPC channel to %s', SERVICE_NAME)
return
client = MobilityServiceStub(chan)
try:
resp = client.ListAddedIPv4Blocks(Void())
return resp
except grpc.RpcError as err:
logging.error("List IpBlock error[%s] %s", err.code(), err.details())
def set_mobilityd_gw_info(gwinfo: GWInfo):
"""
Make RPC call to 'SetGatewayInfo' method of local mobilityD service
"""
try:
chan = ServiceRegistry.get_rpc_channel(SERVICE_NAME,
ServiceRegistry.LOCAL)
except ValueError:
logging.error('Cant get RPC channel to %s', SERVICE_NAME)
return
client = MobilityServiceStub(chan)
try:
client.SetGatewayInfo(gwinfo)
except grpc.RpcError as err:
logging.error("GetGatewayInfoRequest error[%s] %s", err.code(),
err.details())
def get_mobilityd_gw_info() -> List[GWInfo]:
"""
Make RPC call to 'GetGatewayInfo' method of local mobilityD service
"""
try:
chan = ServiceRegistry.get_rpc_channel(SERVICE_NAME,
ServiceRegistry.LOCAL)
except ValueError:
logging.error('Cant get RPC channel to %s', SERVICE_NAME)
return GWInfo()
client = MobilityServiceStub(chan)
try:
return client.ListGatewayInfo(Void()).gw_list
except grpc.RpcError as err:
logging.error("ListGatewayInfo error[%s] %s", err.code(),
err.details())
return []
def get_allocated_ips():
chan = ServiceRegistry.get_rpc_channel('mobilityd', ServiceRegistry.LOCAL)
client = MobilityServiceStub(chan)
res = []
list_blocks_resp = client.ListAddedIPv4Blocks(Void())
for block_msg in list_blocks_resp.ip_block_list:
list_ips_resp = client.ListAllocatedIPs(block_msg)
for ip_msg in list_ips_resp.ip_list:
if ip_msg.version == IPAddress.IPV4:
ip = ipaddress.IPv4Address(ip_msg.address)
elif ip_msg.address == IPAddress.IPV6:
ip = ipaddress.IPv6Address(ip_msg.address)
else:
continue
res.append(ip)
return res
def main():
parser = create_parser()
# Parse the args
args = parser.parse_args()
if not args.cmd:
parser.print_usage()
exit(1)
print('Preparing %s load test...' % args.cmd)
client = MobilityServiceStub(
ServiceRegistry.get_rpc_channel(
MOBILITYD_SERVICE_NAME,
ServiceRegistry.LOCAL,
), )
if args.cmd == 'allocate':
_cleanup_subs()
_setup_ip_block(client)
input_file = 'allocate_data.json'
request_type = 'AllocateIPAddress'
_build_allocate_ip_data(args.num, input_file)
benchmark_grpc_request(
proto_path=PROTO_PATH,
full_request_type=make_full_request_type(
MOBILITYD_SERVICE_RPC_PATH,
request_type,
),
input_file=input_file,
output_file=make_output_file_path(request_type),
num_reqs=args.num,
address=MOBILITYD_PORT,
import_path=args.import_path,
)
_cleanup_subs()
elif args.cmd == 'release':
input_file = 'release_data.json'
request_type = 'ReleaseIPAddress'
_build_release_ip_data(client, input_file)
benchmark_grpc_request(
proto_path=PROTO_PATH,
full_request_type=make_full_request_type(
MOBILITYD_SERVICE_RPC_PATH,
request_type,
),
input_file=input_file,
output_file=make_output_file_path(request_type),
num_reqs=args.num,
address=MOBILITYD_PORT,
import_path=args.import_path,
)
print('Done')
def get_mobilityd_gw_info() -> List[GWInfo]:
"""
Make RPC call to 'GetGatewayInfo' method of local mobilityD service
"""
try:
chan = ServiceRegistry.get_rpc_channel(
SERVICE_NAME,
ServiceRegistry.LOCAL,
)
except ValueError:
logging.error('Cant get RPC channel to %s', SERVICE_NAME)
return GWInfo()
client = MobilityServiceStub(chan)
try:
return client.ListGatewayInfo(Void()).gw_list
except grpc.RpcError as err:
logging.error(
"ListGatewayInfo error[%s] %s",
err.code(),
err.details(),
extra=EXCLUDE_FROM_ERROR_MONITORING if indicates_connection_error(err) else None,
)
return []
def _build_release_ip_data(client: MobilityServiceStub, input_file: str):
release_ip_reqs = []
table = client.GetSubscriberIPTable(Void())
if not table.entries:
print('No IPs allocated to be freed, please run allocate test first')
exit(1)
for entry in table.entries:
release_ip_req = ReleaseIPRequest(
sid=entry.sid,
ip=entry.ip,
apn=entry.apn,
)
release_ip_dict = json_format.MessageToDict(release_ip_req)
# Dumping ReleaseIP request into json
release_ip_reqs.append(release_ip_dict)
with open(input_file, 'w') as file:
json.dump(release_ip_reqs, file)
def load(self):
"""
Instantiates and schedules the Ryu app eventlets in the service
eventloop.
"""
manager = AppManager.get_instance()
manager.load_apps([app.module for app in self._apps])
contexts = manager.create_contexts()
contexts['rule_id_mapper'] = RuleIDToNumMapper()
contexts[
'session_rule_version_mapper'] = self.session_rule_version_mapper
contexts['app_futures'] = {app.name: Future() for app in self._apps}
contexts['config'] = self._magma_service.config
contexts['mconfig'] = self._magma_service.mconfig
contexts['loop'] = self._magma_service.loop
contexts['service_manager'] = self
records_chan = ServiceRegistry.get_rpc_channel('meteringd_records',
ServiceRegistry.CLOUD)
sessiond_chan = ServiceRegistry.get_rpc_channel(
'sessiond', ServiceRegistry.LOCAL)
mobilityd_chan = ServiceRegistry.get_rpc_channel(
'mobilityd', ServiceRegistry.LOCAL)
contexts['rpc_stubs'] = {
'metering_cloud': MeteringdRecordsControllerStub(records_chan),
'mobilityd': MobilityServiceStub(mobilityd_chan),
'sessiond': LocalSessionManagerStub(sessiond_chan),
}
# Instantiate and schedule apps
for app in manager.instantiate_apps(**contexts):
# Wrap the eventlet in asyncio so it will stop when the loop is
# stopped
future = aioeventlet.wrap_greenthread(app,
self._magma_service.loop)
# Schedule the eventlet for evaluation in service loop
asyncio.ensure_future(future)
# In development mode, run server so that
if environment.is_dev_mode():
server_thread = of_rest_server.start(manager)
future = aioeventlet.wrap_greenthread(server_thread,
self._magma_service.loop)
asyncio.ensure_future(future)
async def _get_subscribers(self) -> List[IPAddress]:
"""
Sends gRPC call to mobilityd to get all subscribers table.
Returns: List of [Subscriber ID => IP address, APN] entries
"""
try:
mobilityd_chan = ServiceRegistry.get_rpc_channel(
'mobilityd', ServiceRegistry.LOCAL)
mobilityd_stub = MobilityServiceStub(mobilityd_chan)
response = await grpc_async_wrapper(
mobilityd_stub.GetSubscriberIPTable.future(
Void(), TIMEOUT_SECS), self._loop)
return response.entries
except grpc.RpcError as err:
logging.error("GetSubscribers Error for %s! %s", err.code(),
err.details())
return []
class RpcTests(unittest.TestCase):
"""
Tests for the IPAllocator rpc servicer and stub
"""
def setUp(self):
# Bind the rpc server to a free port
thread_pool = futures.ThreadPoolExecutor(max_workers=10)
self._rpc_server = grpc.server(thread_pool)
port = self._rpc_server.add_insecure_port('0.0.0.0:0')
store = MobilityStore(get_default_client(), False, 3980)
store.dhcp_gw_info.read_default_gw()
ip_allocator = IpAllocatorPool(store)
ipv6_allocator = IPv6AllocatorPool(store,
session_prefix_alloc_mode='RANDOM')
self._allocator = IPAddressManager(ip_allocator, ipv6_allocator, store)
# Add the servicer
self._servicer = MobilityServiceRpcServicer(self._allocator, '',
'fdee:5:6c::/48')
self._servicer.add_to_server(self._rpc_server)
self._rpc_server.start()
# Create a rpc stub
channel = grpc.insecure_channel('0.0.0.0:{}'.format(port))
self._stub = MobilityServiceStub(channel)
# variables shared across tests
self._netaddr = '192.168.0.0'
self._prefix_len = 28
ip_bytes = bytes(map(int, self._netaddr.split('.')))
self._block_msg = IPBlock(version=IPBlock.IPV4,
net_address=ip_bytes,
prefix_len=self._prefix_len)
self._block = ipaddress.ip_network("%s/%s" %
(self._netaddr, self._prefix_len))
self._ipv6_block = ipaddress.ip_network('fdee:5:6c::/48')
self._sid0 = SIDUtils.to_pb('IMSI0')
self._sid1 = SIDUtils.to_pb('IMSI1')
self._sid2 = SIDUtils.to_pb('IMSI2')
self._apn0 = 'Internet'
self._apn1 = 'IMS'
def tearDown(self):
self._rpc_server.stop(0)
def test_add_invalid_ip_block(self):
""" adding invalid ipblock should raise INVALID_ARGUMENT """
block_msg = IPBlock()
with self.assertRaises(grpc.RpcError) as err:
self._stub.AddIPBlock(block_msg)
self.assertEqual(err.exception.code(),
grpc.StatusCode.INVALID_ARGUMENT)
def test_list_invalid_ip_block(self):
""" listing invalid ipblock should raise INVALID_ARGUMENT """
block_msg = IPBlock()
with self.assertRaises(grpc.RpcError) as err:
self._stub.ListAllocatedIPs(block_msg)
self.assertEqual(err.exception.code(),
grpc.StatusCode.INVALID_ARGUMENT)
def test_add_overlapped_ip_block(self):
""" overlaping IPBlocks should raise FAILED_PRECONDITION """
self._stub.AddIPBlock(self._block_msg)
# overlaped block
ip_bytes = bytes(map(int, self._netaddr.split('.')))
block_msg = IPBlock(version=IPBlock.IPV4,
net_address=ip_bytes,
prefix_len=30)
with self.assertRaises(grpc.RpcError) as err:
self._stub.AddIPBlock(block_msg)
self.assertEqual(err.exception.code(),
grpc.StatusCode.FAILED_PRECONDITION)
def test_list_added_ip_blocks(self):
""" List IP blocks added to the allocator """
# return empty list before adding an IP block
resp = self._stub.ListAddedIPv4Blocks(Void())
self.assertEqual(len(resp.ip_block_list), 0)
# list one assigned IP blocks
self._stub.AddIPBlock(self._block_msg)
resp = self._stub.ListAddedIPv4Blocks(Void())
self.assertEqual(len(resp.ip_block_list), 1)
self.assertEqual(resp.ip_block_list[0], self._block_msg)
def test_list_allocated_ips(self):
""" test list allocated IPs from a IP block """
self._stub.AddIPBlock(self._block_msg)
# list empty allocated IPs
resp = self._stub.ListAllocatedIPs(self._block_msg)
self.assertEqual(len(resp.ip_list), 0)
# list after allocating one IP
request = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg0 = self._stub.AllocateIPAddress(request)
resp = self._stub.ListAllocatedIPs(self._block_msg)
self.assertNotEqual(resp, None)
tmp = ListAllocatedIPsResponse()
tmp.ip_list.extend([ip_msg0.ip_list[0]])
self.assertEqual(resp, tmp)
def test_list_allocated_ips_from_unknown_ipblock(self):
""" test list allocated IPs from an unknown IP block """
self._stub.AddIPBlock(self._block_msg)
ip_bytes = bytes(map(int, '10.0.0.0'.split('.')))
block_msg = IPBlock(version=IPBlock.IPV4,
net_address=ip_bytes,
prefix_len=30)
with self.assertRaises(grpc.RpcError) as err:
self._stub.ListAllocatedIPs(block_msg)
self.assertEqual(err.exception.code(),
grpc.StatusCode.FAILED_PRECONDITION)
def test_allocate_ip_address(self):
""" test AllocateIPAddress and ListAllocatedIPs """
self._stub.AddIPBlock(self._block_msg)
# allocate 1st IP
request = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg0 = self._stub.AllocateIPAddress(request)
self.assertEqual(ip_msg0.ip_list[0].version, AllocateIPRequest.IPV4)
ip0 = ipaddress.ip_address(ip_msg0.ip_list[0].address)
self.assertTrue(ip0 in self._block)
# TODO: uncomment the code below when ip_allocator
# actually rejects with DuplicatedIPAllocationError
# with self.assertRaises(grpc.RpcError) as err:
# self._stub.AllocateIPAddress(request)
# self.assertEqual(err.exception.code(),
# grpc.StatusCode.ALREADY_EXISTS)
# allocate 2nd IP
request.sid.CopyFrom(self._sid1)
ip_msg2 = self._stub.AllocateIPAddress(request)
self.assertEqual(ip_msg2.ip_list[0].version, AllocateIPRequest.IPV4)
ip2 = ipaddress.ip_address(ip_msg2.ip_list[0].address)
self.assertTrue(ip2 in self._block)
def test_multiple_apn_ipallocation(self):
""" test AllocateIPAddress for multiple APNs """
self._stub.AddIPBlock(self._block_msg)
# allocate 1st IP
request = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg0 = self._stub.AllocateIPAddress(request)
self.assertEqual(ip_msg0.ip_list[0].version, AllocateIPRequest.IPV4)
ip0 = ipaddress.ip_address(ip_msg0.ip_list[0].address)
self.assertTrue(ip0 in self._block)
# allocate 2nd IP from another APN to the same user
request.apn = self._apn1
ip_msg1 = self._stub.AllocateIPAddress(request)
self.assertEqual(ip_msg1.ip_list[0].version, AllocateIPRequest.IPV4)
ip1 = ipaddress.ip_address(ip_msg1.ip_list[0].address)
self.assertTrue(ip1 in self._block)
def test_run_out_of_ip(self):
""" should raise RESOURCE_EXHAUSTED when running out of IP """
# The subnet is provisioned with 16 addresses
# Inside ip_address_man.py 11 addresses are reserved,
# 2 addresses are not usable (all zeros and all ones)
# Thus, we have a usable pool of 3 IP addresses;
# first three allocations should succeed, while the fourth
# request should raise RESOURCE_EXHAUSTED error
self._stub.AddIPBlock(self._block_msg)
request = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
self._stub.AllocateIPAddress(request)
request.apn = self._apn1
self._stub.AllocateIPAddress(request)
request.sid.CopyFrom(self._sid1)
self._stub.AllocateIPAddress(request)
request.sid.CopyFrom(self._sid2)
with self.assertRaises(grpc.RpcError) as err:
self._stub.AllocateIPAddress(request)
self.assertEqual(err.exception.code(),
grpc.StatusCode.RESOURCE_EXHAUSTED)
def test_release_ip_address(self):
""" test ReleaseIPAddress """
self._stub.AddIPBlock(self._block_msg)
alloc_request0 = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg0 = self._stub.AllocateIPAddress(alloc_request0)
alloc_request1 = AllocateIPRequest(sid=self._sid1,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg1 = self._stub.AllocateIPAddress(alloc_request1)
# release ip_msg0
release_request0 = ReleaseIPRequest(sid=self._sid0,
ip=ip_msg0.ip_list[0],
apn=self._apn0)
resp = self._stub.ReleaseIPAddress(release_request0)
self.assertEqual(resp, Void())
resp = self._stub.ListAllocatedIPs(self._block_msg)
tmp = ListAllocatedIPsResponse()
tmp.ip_list.extend([ip_msg1.ip_list[0]])
self.assertEqual(resp, tmp)
# release ip_msg1
release_request1 = ReleaseIPRequest(sid=self._sid1,
ip=ip_msg1.ip_list[0],
apn=self._apn0)
resp = self._stub.ReleaseIPAddress(release_request1)
resp = self._stub.ListAllocatedIPs(self._block_msg)
self.assertEqual(len(resp.ip_list), 0)
def test_release_unknown_sid_apn_ip_tuple(self):
""" releasing unknown sid-apn-ip tuple should raise NOT_FOUND """
self._stub.AddIPBlock(self._block_msg)
alloc_request0 = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg0 = self._stub.AllocateIPAddress(alloc_request0)
request = ReleaseIPRequest(sid=SIDUtils.to_pb("IMSI12345"),
ip=ip_msg0.ip_list[0],
apn=self._apn0)
with self.assertRaises(grpc.RpcError) as err:
self._stub.ReleaseIPAddress(request)
self.assertEqual(err.exception.code(), grpc.StatusCode.NOT_FOUND)
ip_bytes = bytes(map(int, '10.0.0.0'.split('.')))
request.ip.CopyFrom(IPAddress(version=IPAddress.IPV4,
address=ip_bytes))
with self.assertRaises(grpc.RpcError) as err:
self._stub.ReleaseIPAddress(request)
self.assertEqual(err.exception.code(), grpc.StatusCode.NOT_FOUND)
request = ReleaseIPRequest(sid=self._sid0,
ip=ip_msg0.ip_list[0],
apn=self._apn1)
with self.assertRaises(grpc.RpcError) as err:
self._stub.ReleaseIPAddress(request)
self.assertEqual(err.exception.code(), grpc.StatusCode.NOT_FOUND)
def test_get_ip_for_subscriber(self):
""" test GetIPForSubscriber """
self._stub.AddIPBlock(self._block_msg)
alloc_request0 = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg0 = self._stub.AllocateIPAddress(alloc_request0)
ip0 = ipaddress.ip_address(ip_msg0.ip_list[0].address)
lookup_request0 = IPLookupRequest(sid=self._sid0,
apn=self._apn0,
version=IPAddress.IPV4)
ip_msg0_returned = self._stub.GetIPForSubscriber(lookup_request0)
ip0_returned = ipaddress.ip_address(ip_msg0_returned.address)
self.assertEqual(ip0, ip0_returned)
def test_get_ip_for_unknown_subscriber(self):
""" Getting ip for non existent subscriber should return NOT_FOUND
status code """
lookup_request0 = IPLookupRequest(sid=self._sid0,
apn=self._apn0,
version=IPAddress.IPV4)
with self.assertRaises(grpc.RpcError) as err:
self._stub.GetIPForSubscriber(lookup_request0)
self.assertEqual(err.exception.code(), grpc.StatusCode.NOT_FOUND)
def test_get_gw_info(self):
def_gw_cmd = shlex.split("ip route show")
p = subprocess.Popen(def_gw_cmd, stdout=subprocess.PIPE)
output = p.stdout.read().decode("utf-8")
def_ip = None
for line in output.splitlines():
if 'default ' in line:
tokens = line.split()
def_ip = tokens[2]
break
gw_info_list = self._stub.ListGatewayInfo(Void())
for gw_info in gw_info_list.gw_list:
gw_ip_get = str(ipaddress.ip_address(gw_info.ip.address))
if gw_ip_get == def_ip:
return
assert 0
def test_set_gw_info(self):
mac1 = "22:22:c6:d0:02:3c"
ipaddr1 = ipaddress.ip_address("10.1.1.11")
gwinfo_msg = GWInfo()
gwinfo_msg.ip.version = IPBlock.IPV4
gwinfo_msg.ip.address = ipaddr1.packed
gwinfo_msg.mac = mac1
gwinfo_msg.vlan = ""
self._stub.SetGatewayInfo(gwinfo_msg)
gw_info_list = self._stub.ListGatewayInfo(Void())
for gw_info in gw_info_list.gw_list:
gw_ip_get = ipaddress.ip_address(gw_info.ip.address)
self.assertEqual(ipaddr1, gw_ip_get)
self.assertEqual(mac1, gw_info.mac)
def test_set_gw_info_vlan(self):
mac1 = "22:22:c6:d0:02:3c"
ipaddr1 = ipaddress.ip_address("10.1.1.11")
gwinfo_msg = GWInfo(ip=IPAddress(version=IPAddress.IPV4,
address=ipaddr1.packed),
mac=mac1,
vlan="1")
self._stub.SetGatewayInfo(gwinfo_msg)
gw_info_list = self._stub.ListGatewayInfo(Void())
for gw_info in gw_info_list.gw_list:
if gw_info.vlan == "1":
gw_ip_get = ipaddress.ip_address(gw_info.ip.address)
self.assertEqual(ipaddr1, gw_ip_get)
self.assertEqual(mac1, gw_info.mac)
return
assert 0
def test_set_gw_info_vlan2(self):
mac1 = "22:22:c6:d0:02:3c"
ipaddr1 = ipaddress.ip_address("10.1.1.11")
gwinfo_msg1 = GWInfo(ip=IPAddress(version=IPAddress.IPV4,
address=ipaddr1.packed),
mac=mac1,
vlan="1")
self._stub.SetGatewayInfo(gwinfo_msg1)
mac2 = "33:22:c6:d0:02:3c"
ipaddr2 = ipaddress.ip_address("20.1.1.11")
gwinfo_msg2 = GWInfo(ip=IPAddress(version=IPAddress.IPV4,
address=ipaddr2.packed),
mac=mac2,
vlan="2")
self._stub.SetGatewayInfo(gwinfo_msg2)
gw_info_list = self._stub.ListGatewayInfo(Void())
count1 = 0
count2 = 0
for gw_info in gw_info_list.gw_list:
if gw_info == gwinfo_msg1:
count1 = count1 + 1
if gw_info == gwinfo_msg2:
count2 = count2 + 1
self.assertEqual(count1, 1)
self.assertEqual(count2, 1)
def test_get_subscriber_id_from_ip(self):
""" test GetSubscriberIDFromIP """
self._stub.AddIPBlock(self._block_msg)
alloc_request0 = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg0 = self._stub.AllocateIPAddress(alloc_request0)
sid_pb_returned = self._stub.GetSubscriberIDFromIP(ip_msg0.ip_list[0])
self.assertEqual(SIDUtils.to_str(self._sid0),
SIDUtils.to_str(sid_pb_returned))
def test_get_subscriber_id_from_unknown_ip(self):
"""
Getting subscriber id for non-allocated ip address should return
NOT_FOUND error code
"""
ip_pb = IPAddress(version=IPAddress.IPV4,
address=ipaddress.ip_address('1.1.1.1').packed)
with self.assertRaises(grpc.RpcError) as err:
self._stub.GetSubscriberIDFromIP(ip_pb)
self.assertEqual(err.exception.code(), grpc.StatusCode.NOT_FOUND)
def test_get_subscriber_ip_table(self):
""" test GetSubscriberIPTable """
self._stub.AddIPBlock(self._block_msg)
resp = self._stub.GetSubscriberIPTable(Void())
self.assertEqual(len(resp.entries), 0)
alloc_request0 = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg0 = self._stub.AllocateIPAddress(alloc_request0)
entry0 = SubscriberIPTableEntry(sid=self._sid0,
ip=ip_msg0.ip_list[0],
apn=self._apn0)
resp = self._stub.GetSubscriberIPTable(Void())
self.assertTrue(entry0 in resp.entries)
alloc_request1 = AllocateIPRequest(sid=self._sid1,
version=AllocateIPRequest.IPV4,
apn=self._apn1)
ip_msg1 = self._stub.AllocateIPAddress(alloc_request1)
entry1 = SubscriberIPTableEntry(sid=self._sid1,
ip=ip_msg1.ip_list[0],
apn=self._apn1)
resp = self._stub.GetSubscriberIPTable(Void())
self.assertTrue(entry0 in resp.entries)
self.assertTrue(entry1 in resp.entries)
# keep in table after in release
release_request0 = ReleaseIPRequest(sid=self._sid0,
ip=ip_msg0.ip_list[0],
apn=self._apn0)
resp = self._stub.ReleaseIPAddress(release_request0)
resp = self._stub.GetSubscriberIPTable(Void())
self.assertTrue(entry0 in resp.entries)
self.assertTrue(entry1 in resp.entries)
def test_remove_no_assigned_blocks(self):
""" remove should return nothing """
remove_request0 = RemoveIPBlockRequest(ip_blocks=[self._block_msg],
force=False)
resp = self._stub.RemoveIPBlock(remove_request0)
expect = RemoveIPBlockResponse()
self.assertEqual(expect, resp)
resp = self._stub.ListAddedIPv4Blocks(Void())
expect = ListAddedIPBlocksResponse()
self.assertEqual(expect, resp)
def test_remove_unallocated_assigned_block(self):
""" remove should return nothing """
self._stub.AddIPBlock(self._block_msg)
remove_request0 = RemoveIPBlockRequest(ip_blocks=[self._block_msg],
force=False)
resp = self._stub.RemoveIPBlock(remove_request0)
expect = RemoveIPBlockResponse()
expect.ip_blocks.extend([self._block_msg])
self.assertEqual(expect, resp)
resp = self._stub.ListAddedIPv4Blocks(Void())
expect = ListAddedIPBlocksResponse()
self.assertEqual(expect, resp)
def test_remove_allocated_assigned_block_without_force(self):
""" remove should return nothing """
self._stub.AddIPBlock(self._block_msg)
alloc_request0 = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
self._stub.AllocateIPAddress(alloc_request0)
remove_request0 = RemoveIPBlockRequest(ip_blocks=[self._block_msg],
force=False)
resp = self._stub.RemoveIPBlock(remove_request0)
expect = RemoveIPBlockResponse()
self.assertEqual(expect, resp)
resp = self._stub.ListAddedIPv4Blocks(Void())
expect = ListAddedIPBlocksResponse()
expect.ip_block_list.extend([self._block_msg])
self.assertEqual(expect, resp)
def test_remove_allocated_assigned_block_with_force(self):
""" remove should return nothing """
self._stub.AddIPBlock(self._block_msg)
alloc_request0 = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
self._stub.AllocateIPAddress(alloc_request0)
remove_request0 = RemoveIPBlockRequest(ip_blocks=[self._block_msg],
force=True)
resp = self._stub.RemoveIPBlock(remove_request0)
expect = RemoveIPBlockResponse()
expect.ip_blocks.extend([self._block_msg])
self.assertEqual(expect, resp)
resp = self._stub.ListAddedIPv4Blocks(Void())
expect = ListAddedIPBlocksResponse()
self.assertEqual(expect, resp)
def test_remove_after_releasing_all_addresses(self):
""" remove after releasing all addresses should remove block """
# Assign IP block
self._stub.AddIPBlock(self._block_msg)
# Allocate 2 IPs
alloc_request0 = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg0 = self._stub.AllocateIPAddress(alloc_request0)
alloc_request1 = AllocateIPRequest(sid=self._sid1,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg1 = self._stub.AllocateIPAddress(alloc_request1)
# Test remove without force -- should not remove block
remove_request0 = RemoveIPBlockRequest(ip_blocks=[self._block_msg],
force=False)
resp = self._stub.RemoveIPBlock(remove_request0)
expect = RemoveIPBlockResponse()
self.assertEqual(expect, resp)
# Ensure that block has not been removed
resp = self._stub.ListAddedIPv4Blocks(Void())
expect = ListAddedIPBlocksResponse()
expect.ip_block_list.extend([self._block_msg])
self.assertEqual(expect, resp)
# Release the allocated IPs
release_request0 = ReleaseIPRequest(sid=self._sid0,
ip=ip_msg0.ip_list[0],
apn=self._apn0)
resp = self._stub.ReleaseIPAddress(release_request0)
self.assertEqual(resp, Void())
release_request1 = ReleaseIPRequest(sid=self._sid1,
ip=ip_msg1.ip_list[0],
apn=self._apn0)
resp = self._stub.ReleaseIPAddress(release_request1)
self.assertEqual(resp, Void())
# Test remove without force -- should remove block
remove_request1 = RemoveIPBlockRequest(ip_blocks=[self._block_msg],
force=False)
resp = self._stub.RemoveIPBlock(remove_request1)
expect = RemoveIPBlockResponse()
expect.ip_blocks.extend([self._block_msg])
self.assertEqual(expect, resp)
# Ensure that block has been removed
resp = self._stub.ListAddedIPv4Blocks(Void())
expect = ListAddedIPBlocksResponse()
self.assertEqual(expect, resp)
def test_remove_after_releasing_some_addresses(self):
""" remove after releasing some addresses shouldn't remove block """
# Assign IP block
self._stub.AddIPBlock(self._block_msg)
# Allocate 2 IPs
alloc_request0 = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg0 = self._stub.AllocateIPAddress(alloc_request0)
alloc_request1 = AllocateIPRequest(sid=self._sid1,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
self._stub.AllocateIPAddress(alloc_request1)
# Test remove without force -- should not remove block
remove_request0 = RemoveIPBlockRequest(ip_blocks=[self._block_msg],
force=False)
resp = self._stub.RemoveIPBlock(remove_request0)
expect = RemoveIPBlockResponse()
self.assertEqual(expect, resp)
# Ensure that block has not been removed
resp = self._stub.ListAddedIPv4Blocks(Void())
expect = ListAddedIPBlocksResponse()
expect.ip_block_list.extend([self._block_msg])
self.assertEqual(expect, resp)
# Release the allocated IPs
release_request0 = ReleaseIPRequest(sid=self._sid0,
ip=ip_msg0.ip_list[0],
apn=self._apn0)
resp = self._stub.ReleaseIPAddress(release_request0)
self.assertEqual(resp, Void())
# Test remove without force -- should not remove block
remove_request1 = RemoveIPBlockRequest(ip_blocks=[self._block_msg],
force=False)
resp = self._stub.RemoveIPBlock(remove_request1)
expect = RemoveIPBlockResponse()
self.assertEqual(expect, resp)
# Ensure that block has not been removed
resp = self._stub.ListAddedIPv4Blocks(Void())
expect = ListAddedIPBlocksResponse()
expect.ip_block_list.extend([self._block_msg])
self.assertEqual(expect, resp)
def test_ipv6(self):
""" ipv6 requests should work for allocate / release IP requests """
# AllocateIPAddress
request = AllocateIPRequest(sid=self._sid1,
version=AllocateIPRequest.IPV6,
apn=self._apn0)
ip_msg = self._stub.AllocateIPAddress(request)
self.assertTrue(
ipaddress.ip_address(ip_msg.ip_list[0].address) in
self._ipv6_block)
# ReleaseIPAddress
release_request = ReleaseIPRequest(sid=self._sid1,
ip=ip_msg.ip_list[0],
apn=self._apn0)
self._stub.ReleaseIPAddress(release_request)
class RpcTests(unittest.TestCase):
"""
Tests for the IPAllocator rpc servicer and stub
"""
def setUp(self):
# Bind the rpc server to a free port
thread_pool = futures.ThreadPoolExecutor(max_workers=10)
self._rpc_server = grpc.server(thread_pool)
port = self._rpc_server.add_insecure_port('0.0.0.0:0')
# Create a mock "mconfig" for the servicer to use
mconfig = unittest.mock.Mock()
mconfig.ip_block = None
mconfig.ip_allocator_type = MobilityD.IP_POOL
# Add the servicer
config = {
'persist_to_redis': False,
'redis_port': None,
'allocator_type': "ip_pool"
}
self._servicer = MobilityServiceRpcServicer(mconfig, config)
self._servicer.add_to_server(self._rpc_server)
self._rpc_server.start()
# Create a rpc stub
channel = grpc.insecure_channel('0.0.0.0:{}'.format(port))
self._stub = MobilityServiceStub(channel)
# variables shared across tests
self._netaddr = '192.168.0.0'
self._prefix_len = 28
ip_bytes = bytes(map(int, self._netaddr.split('.')))
self._block_msg = IPBlock(version=IPBlock.IPV4,
net_address=ip_bytes,
prefix_len=self._prefix_len)
self._block = ipaddress.ip_network("%s/%s" %
(self._netaddr, self._prefix_len))
self._sid0 = SIDUtils.to_pb('IMSI0')
self._sid1 = SIDUtils.to_pb('IMSI1')
self._sid2 = SIDUtils.to_pb('IMSI2')
self._apn0 = 'Internet'
self._apn1 = 'IMS'
def tearDown(self):
self._rpc_server.stop(0)
def test_add_ipv6_block_to_servicer(self):
""" add IPv6 block (ipaddress.ipblock) directly to servicer should
raise IPVersionNotSupportedError
"""
ip = ipaddress.ip_address("fc::")
with self.assertRaises(IPVersionNotSupportedError):
self._servicer.add_ip_block(ip)
def test_add_invalid_ip_block(self):
""" adding invalid ipblock should raise INVALID_ARGUMENT """
block_msg = IPBlock()
with self.assertRaises(grpc.RpcError) as err:
self._stub.AddIPBlock(block_msg)
self.assertEqual(err.exception.code(),
grpc.StatusCode.INVALID_ARGUMENT)
def test_list_invalid_ip_block(self):
""" listing invalid ipblock should raise INVALID_ARGUMENT """
block_msg = IPBlock()
with self.assertRaises(grpc.RpcError) as err:
self._stub.ListAllocatedIPs(block_msg)
self.assertEqual(err.exception.code(),
grpc.StatusCode.INVALID_ARGUMENT)
def test_add_overlapped_ip_block(self):
""" overlaping IPBlocks should raise FAILED_PRECONDITION """
self._stub.AddIPBlock(self._block_msg)
# overlaped block
ip_bytes = bytes(map(int, self._netaddr.split('.')))
block_msg = IPBlock(version=IPBlock.IPV4,
net_address=ip_bytes,
prefix_len=30)
with self.assertRaises(grpc.RpcError) as err:
self._stub.AddIPBlock(block_msg)
self.assertEqual(err.exception.code(),
grpc.StatusCode.FAILED_PRECONDITION)
def test_list_added_ip_blocks(self):
""" List IP blocks added to the allocator """
# return empty list before adding an IP block
resp = self._stub.ListAddedIPv4Blocks(Void())
self.assertEqual(len(resp.ip_block_list), 0)
# list one assigned IP blocks
self._stub.AddIPBlock(self._block_msg)
resp = self._stub.ListAddedIPv4Blocks(Void())
self.assertEqual(len(resp.ip_block_list), 1)
self.assertEqual(resp.ip_block_list[0], self._block_msg)
def test_list_allocated_ips(self):
""" test list allocated IPs from a IP block """
self._stub.AddIPBlock(self._block_msg)
# list empty allocated IPs
resp = self._stub.ListAllocatedIPs(self._block_msg)
self.assertEqual(len(resp.ip_list), 0)
# list after allocating one IP
request = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg0 = self._stub.AllocateIPAddress(request)
resp = self._stub.ListAllocatedIPs(self._block_msg)
self.assertNotEqual(resp, None)
tmp = ListAllocatedIPsResponse()
tmp.ip_list.extend([ip_msg0])
self.assertEqual(resp, tmp)
def test_list_allocated_ips_from_unknown_ipblock(self):
""" test list allocated IPs from an unknown IP block """
self._stub.AddIPBlock(self._block_msg)
ip_bytes = bytes(map(int, '10.0.0.0'.split('.')))
block_msg = IPBlock(version=IPBlock.IPV4,
net_address=ip_bytes,
prefix_len=30)
with self.assertRaises(grpc.RpcError) as err:
self._stub.ListAllocatedIPs(block_msg)
self.assertEqual(err.exception.code(),
grpc.StatusCode.FAILED_PRECONDITION)
def test_allocate_ip_address(self):
""" test AllocateIPAddress and ListAllocatedIPs """
self._stub.AddIPBlock(self._block_msg)
# allocate 1st IP
request = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg0 = self._stub.AllocateIPAddress(request)
self.assertEqual(ip_msg0.version, AllocateIPRequest.IPV4)
ip0 = ipaddress.ip_address(ip_msg0.address)
self.assertTrue(ip0 in self._block)
# TODO: uncomment the code below when ip_allocator
# actually rejects with DuplicatedIPAllocationError
# with self.assertRaises(grpc.RpcError) as err:
# self._stub.AllocateIPAddress(request)
# self.assertEqual(err.exception.code(),
# grpc.StatusCode.ALREADY_EXISTS)
# allocate 2nd IP
request.sid.CopyFrom(self._sid1)
ip_msg2 = self._stub.AllocateIPAddress(request)
self.assertEqual(ip_msg2.version, AllocateIPRequest.IPV4)
ip2 = ipaddress.ip_address(ip_msg2.address)
self.assertTrue(ip2 in self._block)
def test_multiple_apn_ipallocation(self):
""" test AllocateIPAddress for multiple APNs """
self._stub.AddIPBlock(self._block_msg)
# allocate 1st IP
request = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg0 = self._stub.AllocateIPAddress(request)
self.assertEqual(ip_msg0.version, AllocateIPRequest.IPV4)
ip0 = ipaddress.ip_address(ip_msg0.address)
self.assertTrue(ip0 in self._block)
# allocate 2nd IP from another APN to the same user
request.apn = self._apn1
ip_msg1 = self._stub.AllocateIPAddress(request)
self.assertEqual(ip_msg1.version, AllocateIPRequest.IPV4)
ip1 = ipaddress.ip_address(ip_msg1.address)
self.assertTrue(ip1 in self._block)
def test_run_out_of_ip(self):
""" should raise RESOURCE_EXHAUSTED when running out of IP """
# The subnet is provisioned with 16 addresses
# Inside ip_address_man.py 11 addresses are reserved,
# 2 addresses are not usable (all zeros and all ones)
# Thus, we have a usable pool of 3 IP addresses;
# first three allocations should succeed, while the fourth
# request should raise RESOURCE_EXHAUSTED error
self._stub.AddIPBlock(self._block_msg)
request = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
self._stub.AllocateIPAddress(request)
request.apn = self._apn1
self._stub.AllocateIPAddress(request)
request.sid.CopyFrom(self._sid1)
self._stub.AllocateIPAddress(request)
request.sid.CopyFrom(self._sid2)
with self.assertRaises(grpc.RpcError) as err:
self._stub.AllocateIPAddress(request)
self.assertEqual(err.exception.code(),
grpc.StatusCode.RESOURCE_EXHAUSTED)
def test_release_ip_address(self):
""" test ReleaseIPAddress """
self._stub.AddIPBlock(self._block_msg)
alloc_request0 = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg0 = self._stub.AllocateIPAddress(alloc_request0)
alloc_request1 = AllocateIPRequest(sid=self._sid1,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg1 = self._stub.AllocateIPAddress(alloc_request1)
# release ip_msg0
release_request0 = ReleaseIPRequest(sid=self._sid0,
ip=ip_msg0,
apn=self._apn0)
resp = self._stub.ReleaseIPAddress(release_request0)
self.assertEqual(resp, Void())
resp = self._stub.ListAllocatedIPs(self._block_msg)
tmp = ListAllocatedIPsResponse()
tmp.ip_list.extend([ip_msg1])
self.assertEqual(resp, tmp)
# release ip_msg1
release_request1 = ReleaseIPRequest(sid=self._sid1,
ip=ip_msg1,
apn=self._apn0)
resp = self._stub.ReleaseIPAddress(release_request1)
resp = self._stub.ListAllocatedIPs(self._block_msg)
self.assertEqual(len(resp.ip_list), 0)
def test_release_unknown_sid_apn_ip_tuple(self):
""" releasing unknown sid-apn-ip tuple should raise NOT_FOUND """
self._stub.AddIPBlock(self._block_msg)
alloc_request0 = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg0 = self._stub.AllocateIPAddress(alloc_request0)
request = ReleaseIPRequest(sid=SIDUtils.to_pb("IMSI12345"),
ip=ip_msg0,
apn=self._apn0)
with self.assertRaises(grpc.RpcError) as err:
self._stub.ReleaseIPAddress(request)
self.assertEqual(err.exception.code(), grpc.StatusCode.NOT_FOUND)
ip_bytes = bytes(map(int, '10.0.0.0'.split('.')))
request.ip.CopyFrom(IPAddress(version=IPAddress.IPV4,
address=ip_bytes))
with self.assertRaises(grpc.RpcError) as err:
self._stub.ReleaseIPAddress(request)
self.assertEqual(err.exception.code(), grpc.StatusCode.NOT_FOUND)
request = ReleaseIPRequest(sid=self._sid0, ip=ip_msg0, apn=self._apn1)
with self.assertRaises(grpc.RpcError) as err:
self._stub.ReleaseIPAddress(request)
self.assertEqual(err.exception.code(), grpc.StatusCode.NOT_FOUND)
def test_get_ip_for_subscriber(self):
""" test GetIPForSubscriber """
self._stub.AddIPBlock(self._block_msg)
alloc_request0 = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg0 = self._stub.AllocateIPAddress(alloc_request0)
ip0 = ipaddress.ip_address(ip_msg0.address)
lookup_request0 = IPLookupRequest(sid=self._sid0, apn=self._apn0)
ip_msg0_returned = self._stub.GetIPForSubscriber(lookup_request0)
ip0_returned = ipaddress.ip_address(ip_msg0_returned.address)
self.assertEqual(ip0, ip0_returned)
def test_get_ip_for_unknown_subscriber(self):
""" Getting ip for non existent subscriber should return NOT_FOUND
status code """
lookup_request0 = IPLookupRequest(sid=self._sid0, apn=self._apn0)
with self.assertRaises(grpc.RpcError) as err:
self._stub.GetIPForSubscriber(lookup_request0)
self.assertEqual(err.exception.code(), grpc.StatusCode.NOT_FOUND)
def test_get_subscriber_id_from_ip(self):
""" test GetSubscriberIDFromIP """
self._stub.AddIPBlock(self._block_msg)
alloc_request0 = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg0 = self._stub.AllocateIPAddress(alloc_request0)
sid_pb_returned = self._stub.GetSubscriberIDFromIP(ip_msg0)
self.assertEqual(SIDUtils.to_str(self._sid0),
SIDUtils.to_str(sid_pb_returned))
def test_get_subscriber_id_from_unknown_ip(self):
"""
Getting subscriber id for non-allocated ip address should return
NOT_FOUND error code
"""
ip_pb = IPAddress(version=IPAddress.IPV4,
address=ipaddress.ip_address('1.1.1.1').packed)
with self.assertRaises(grpc.RpcError) as err:
self._stub.GetSubscriberIDFromIP(ip_pb)
self.assertEqual(err.exception.code(), grpc.StatusCode.NOT_FOUND)
def test_get_subscriber_ip_table(self):
""" test GetSubscriberIPTable """
self._stub.AddIPBlock(self._block_msg)
resp = self._stub.GetSubscriberIPTable(Void())
self.assertEqual(len(resp.entries), 0)
alloc_request0 = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg0 = self._stub.AllocateIPAddress(alloc_request0)
entry0 = SubscriberIPTableEntry(sid=self._sid0,
ip=ip_msg0,
apn=self._apn0)
resp = self._stub.GetSubscriberIPTable(Void())
self.assertTrue(entry0 in resp.entries)
alloc_request1 = AllocateIPRequest(sid=self._sid1,
version=AllocateIPRequest.IPV4,
apn=self._apn1)
ip_msg1 = self._stub.AllocateIPAddress(alloc_request1)
entry1 = SubscriberIPTableEntry(sid=self._sid1,
ip=ip_msg1,
apn=self._apn1)
resp = self._stub.GetSubscriberIPTable(Void())
self.assertTrue(entry0 in resp.entries)
self.assertTrue(entry1 in resp.entries)
# keep in table after in release
release_request0 = ReleaseIPRequest(sid=self._sid0,
ip=ip_msg0,
apn=self._apn0)
resp = self._stub.ReleaseIPAddress(release_request0)
resp = self._stub.GetSubscriberIPTable(Void())
self.assertTrue(entry0 in resp.entries)
self.assertTrue(entry1 in resp.entries)
def test_remove_no_assigned_blocks(self):
""" remove should return nothing """
remove_request0 = RemoveIPBlockRequest(ip_blocks=[self._block_msg],
force=False)
resp = self._stub.RemoveIPBlock(remove_request0)
expect = RemoveIPBlockResponse()
self.assertEqual(expect, resp)
resp = self._stub.ListAddedIPv4Blocks(Void())
expect = ListAddedIPBlocksResponse()
self.assertEqual(expect, resp)
def test_remove_unallocated_assigned_block(self):
""" remove should return nothing """
self._stub.AddIPBlock(self._block_msg)
remove_request0 = RemoveIPBlockRequest(ip_blocks=[self._block_msg],
force=False)
resp = self._stub.RemoveIPBlock(remove_request0)
expect = RemoveIPBlockResponse()
expect.ip_blocks.extend([self._block_msg])
self.assertEqual(expect, resp)
resp = self._stub.ListAddedIPv4Blocks(Void())
expect = ListAddedIPBlocksResponse()
self.assertEqual(expect, resp)
def test_remove_allocated_assigned_block_without_force(self):
""" remove should return nothing """
self._stub.AddIPBlock(self._block_msg)
alloc_request0 = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
self._stub.AllocateIPAddress(alloc_request0)
remove_request0 = RemoveIPBlockRequest(ip_blocks=[self._block_msg],
force=False)
resp = self._stub.RemoveIPBlock(remove_request0)
expect = RemoveIPBlockResponse()
self.assertEqual(expect, resp)
resp = self._stub.ListAddedIPv4Blocks(Void())
expect = ListAddedIPBlocksResponse()
expect.ip_block_list.extend([self._block_msg])
self.assertEqual(expect, resp)
def test_remove_allocated_assigned_block_with_force(self):
""" remove should return nothing """
self._stub.AddIPBlock(self._block_msg)
alloc_request0 = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
self._stub.AllocateIPAddress(alloc_request0)
remove_request0 = RemoveIPBlockRequest(ip_blocks=[self._block_msg],
force=True)
resp = self._stub.RemoveIPBlock(remove_request0)
expect = RemoveIPBlockResponse()
expect.ip_blocks.extend([self._block_msg])
self.assertEqual(expect, resp)
resp = self._stub.ListAddedIPv4Blocks(Void())
expect = ListAddedIPBlocksResponse()
self.assertEqual(expect, resp)
def test_remove_after_releasing_all_addresses(self):
""" remove after releasing all addresses should remove block """
# Assign IP block
self._stub.AddIPBlock(self._block_msg)
# Allocate 2 IPs
alloc_request0 = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg0 = self._stub.AllocateIPAddress(alloc_request0)
alloc_request1 = AllocateIPRequest(sid=self._sid1,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg1 = self._stub.AllocateIPAddress(alloc_request1)
# Test remove without force -- should not remove block
remove_request0 = RemoveIPBlockRequest(ip_blocks=[self._block_msg],
force=False)
resp = self._stub.RemoveIPBlock(remove_request0)
expect = RemoveIPBlockResponse()
self.assertEqual(expect, resp)
# Ensure that block has not been removed
resp = self._stub.ListAddedIPv4Blocks(Void())
expect = ListAddedIPBlocksResponse()
expect.ip_block_list.extend([self._block_msg])
self.assertEqual(expect, resp)
# Release the allocated IPs
release_request0 = ReleaseIPRequest(sid=self._sid0,
ip=ip_msg0,
apn=self._apn0)
resp = self._stub.ReleaseIPAddress(release_request0)
self.assertEqual(resp, Void())
release_request1 = ReleaseIPRequest(sid=self._sid1,
ip=ip_msg1,
apn=self._apn0)
resp = self._stub.ReleaseIPAddress(release_request1)
self.assertEqual(resp, Void())
# Test remove without force -- should remove block
remove_request1 = RemoveIPBlockRequest(ip_blocks=[self._block_msg],
force=False)
resp = self._stub.RemoveIPBlock(remove_request1)
expect = RemoveIPBlockResponse()
expect.ip_blocks.extend([self._block_msg])
self.assertEqual(expect, resp)
# Ensure that block has been removed
resp = self._stub.ListAddedIPv4Blocks(Void())
expect = ListAddedIPBlocksResponse()
self.assertEqual(expect, resp)
def test_remove_after_releasing_some_addresses(self):
""" remove after releasing some addresses shouldn't remove block """
# Assign IP block
self._stub.AddIPBlock(self._block_msg)
# Allocate 2 IPs
alloc_request0 = AllocateIPRequest(sid=self._sid0,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
ip_msg0 = self._stub.AllocateIPAddress(alloc_request0)
alloc_request1 = AllocateIPRequest(sid=self._sid1,
version=AllocateIPRequest.IPV4,
apn=self._apn0)
self._stub.AllocateIPAddress(alloc_request1)
# Test remove without force -- should not remove block
remove_request0 = RemoveIPBlockRequest(ip_blocks=[self._block_msg],
force=False)
resp = self._stub.RemoveIPBlock(remove_request0)
expect = RemoveIPBlockResponse()
self.assertEqual(expect, resp)
# Ensure that block has not been removed
resp = self._stub.ListAddedIPv4Blocks(Void())
expect = ListAddedIPBlocksResponse()
expect.ip_block_list.extend([self._block_msg])
self.assertEqual(expect, resp)
# Release the allocated IPs
release_request0 = ReleaseIPRequest(sid=self._sid0,
ip=ip_msg0,
apn=self._apn0)
resp = self._stub.ReleaseIPAddress(release_request0)
self.assertEqual(resp, Void())
# Test remove without force -- should not remove block
remove_request1 = RemoveIPBlockRequest(ip_blocks=[self._block_msg],
force=False)
resp = self._stub.RemoveIPBlock(remove_request1)
expect = RemoveIPBlockResponse()
self.assertEqual(expect, resp)
# Ensure that block has not been removed
resp = self._stub.ListAddedIPv4Blocks(Void())
expect = ListAddedIPBlocksResponse()
expect.ip_block_list.extend([self._block_msg])
self.assertEqual(expect, resp)
def test_ipv6_unimplemented(self):
""" ipv6 requests should raise UNIMPLEMENTED """
ip = ipaddress.ip_address("fc::")
block = IPBlock(version=IPBlock.IPV6,
net_address=ip.packed,
prefix_len=120)
# AddIPBlock
with self.assertRaises(grpc.RpcError) as err:
self._stub.AddIPBlock(block)
self.assertEqual(err.exception.code(), grpc.StatusCode.UNIMPLEMENTED)
# ListAllocatedIPs
with self.assertRaises(grpc.RpcError) as err:
self._stub.ListAllocatedIPs(block)
self.assertEqual(err.exception.code(), grpc.StatusCode.UNIMPLEMENTED)
# AllocateIPAddress
request = AllocateIPRequest(sid=self._sid1,
version=AllocateIPRequest.IPV6,
apn=self._apn0)
with self.assertRaises(grpc.RpcError) as err:
self._stub.AllocateIPAddress(request)
self.assertEqual(err.exception.code(), grpc.StatusCode.UNIMPLEMENTED)
# ReleaseIPAddress
release_request = ReleaseIPRequest(
sid=self._sid0,
ip=IPAddress(version=IPAddress.IPV6),
apn=self._apn0)
with self.assertRaises(grpc.RpcError) as err:
self._stub.ReleaseIPAddress(release_request)
self.assertEqual(err.exception.code(), grpc.StatusCode.UNIMPLEMENTED)
def __init__(self):
""" Init the gRPC stub. """
self._mobility_stub = MobilityServiceStub(get_rpc_channel("mobilityd"))
class MobilityServiceGrpc(MobilityServiceClient):
"""
Handle mobility actions by making calls over gRPC directly to the
gateway.
"""
def __init__(self):
""" Init the gRPC stub. """
self._mobility_stub = MobilityServiceStub(get_rpc_channel("mobilityd"))
@staticmethod
def _get_ip_data(block):
"""
Construct an IPBlock message from a given IP block.
Args:
block (ipaddress.ip_network): the IP block to embed
"""
ipblock_msg = IPBlock()
ipblock_msg.version = IPBlock.IPV4
ipblock_msg.net_address = block.network_address.packed
ipblock_msg.prefix_len = block.prefixlen
return ipblock_msg
def add_ip_block(self, block):
mobility_data = self._get_ip_data(block)
try:
self._mobility_stub.AddIPBlock(mobility_data)
except grpc.RpcError as error:
err_code = error.exception().code()
if err_code == grpc.StatusCode.FAILED_PRECONDITION:
logging.info("Ignoring FAILED_PRECONDITION exception")
else:
raise
def list_added_blocks(self):
try:
response = self._mobility_stub.ListAddedIPv4Blocks(Void())
ip_block_list = []
for block in response.ip_block_list:
address_bytes = block.net_address
address_int = int.from_bytes(address_bytes, byteorder='big')
address = ipaddress.ip_address(address_int)
ip_block_list.append(
ipaddress.ip_network("%s/%d" %
(address, block.prefix_len)))
return ip_block_list
except grpc.RpcError as error:
err_code = error.exception().code()
if (err_code == grpc.StatusCode.FAILED_PRECONDITION):
logging.info("Ignoring FAILED_PRECONDITION exception")
else:
raise
def remove_ip_blocks(self, blocks):
try:
ip_blocks = [
IPBlock(version={
4: IPAddress.IPV4,
6: IPAddress.IPV6
}[block.version],
net_address=block.network_address.packed,
prefix_len=block.prefixlen) for block in blocks
]
response = self._mobility_stub.RemoveIPBlock(
RemoveIPBlockRequest(ip_blocks=ip_blocks, force=False))
removed_ip_block_list = ()
for block in response.ip_blocks:
address_bytes = block.net_address
address_int = int.from_bytes(address_bytes, byteorder='big')
address = ipaddress.ip_address(address_int)
removed_ip_block_list += (ipaddress.ip_network(
"%s/%d" % (address, block.prefix_len)), )
return removed_ip_block_list
except grpc.RpcError as error:
err_code = error.exception().code()
if (err_code == grpc.StatusCode.FAILED_PRECONDITION):
logging.info("Ignoring FAILED_PRECONDITION exception")
else:
raise
def get_subscriber_ip_table(self):
response = self._mobility_stub.GetSubscriberIPTable(Void())
table = {}
for entry in response.entries:
sid = entry.sid.id
ip = ipaddress.ip_address(entry.ip.address)
table[sid] = ip
return table
def remove_all_ip_blocks(self):
blocks = self.list_added_blocks()
self.remove_ip_blocks(blocks)
def wait_for_changes(self):
""" All changes propagate immediately, no need to wait """
return
