tests/unit/network_services/vnf_generic/vnf/test_cgnapt_vnf.py

   1 # Copyright (c) 2016-2017 Intel Corporation
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #      http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14 #
  15
  16 from copy import deepcopy
  17 import os
  18 import unittest
  19 import mock
  20
  21 from tests.unit import STL_MOCKS
  22 from tests.unit.network_services.vnf_generic.vnf.test_base import mock_ssh
  23
  24
  25 STLClient = mock.MagicMock()
  26 stl_patch = mock.patch.dict("sys.modules", STL_MOCKS)
  27 stl_patch.start()
  28
  29 if stl_patch:
  30     from yardstick.network_services.vnf_generic.vnf.cgnapt_vnf import CgnaptApproxVnf, \
  31         CgnaptApproxSetupEnvHelper
  32     from yardstick.network_services.vnf_generic.vnf import cgnapt_vnf
  33     from yardstick.network_services.nfvi.resource import ResourceProfile
  34
  35 TEST_FILE_YAML = 'nsb_test_case.yaml'
  36 SSH_HELPER = 'yardstick.network_services.vnf_generic.vnf.sample_vnf.VnfSshHelper'
  37
  38
  39 name = 'vnf__0'
  40
  41
  42 class TestCgnaptApproxSetupEnvHelper(unittest.TestCase):
  43
  44     def test__generate_ip_from_pool(self):
  45
  46         ip = CgnaptApproxSetupEnvHelper._generate_ip_from_pool("1.2.3.4")
  47         self.assertEqual(next(ip), '1.2.3.4')
  48         self.assertEqual(next(ip), '1.2.4.4')
  49         self.assertEqual(next(ip), '1.2.5.4')
  50
  51     def test__update_cgnat_script_file(self):
  52
  53         sample = """\
  54 # See the License for the specific language governing permissions and
  55 # limitations under the License.
  56
  57 link 0 down
  58 link 0 config {port0_local_ip} {port0_prefixlen}
  59 link 0 up
  60 link 1 down
  61 link 1 config {port1_local_ip} {port1_prefixlen}
  62 link 1 up
  63 """
  64         header = "This is a header"
  65
  66         out = CgnaptApproxSetupEnvHelper._update_cgnat_script_file(header, sample.splitlines())
  67         self.assertNotIn("This is a header", out)
  68
  69     def test__get_cgnapt_config(self):
  70         vnfd_helper = mock.MagicMock()
  71         vnfd_helper.port_pairs.uplink_ports = [{"name": 'a'}, {"name": "b"}, {"name": "c"}]
  72
  73         helper = CgnaptApproxSetupEnvHelper(vnfd_helper, mock.Mock(), mock.Mock())
  74         result = helper._get_cgnapt_config()
  75         self.assertIsNotNone(result)
  76
  77     def test_scale(self):
  78         helper = CgnaptApproxSetupEnvHelper(mock.Mock(), mock.Mock(), mock.Mock())
  79         with self.assertRaises(NotImplementedError):
  80             helper.scale()
  81
  82
  83 @mock.patch("yardstick.network_services.vnf_generic.vnf.sample_vnf.Process")
  84 class TestCgnaptApproxVnf(unittest.TestCase):
  85     VNFD = {'vnfd:vnfd-catalog':
  86             {'vnfd':
  87              [{'short-name': 'VpeVnf',
  88                'vdu':
  89                [{'routing_table':
  90                  [{'network': '152.16.100.20',
  91                    'netmask': '255.255.255.0',
  92                    'gateway': '152.16.100.20',
  93                    'if': 'xe0'},
  94                   {'network': '152.16.40.20',
  95                    'netmask': '255.255.255.0',
  96                    'gateway': '152.16.40.20',
  97                    'if': 'xe1'}],
  98                  'description': 'VPE approximation using DPDK',
  99                  'name': 'vpevnf-baremetal',
 100                  'nd_route_tbl':
 101                  [{'network': '0064:ff9b:0:0:0:0:9810:6414',
 102                    'netmask': '112',
 103                    'gateway': '0064:ff9b:0:0:0:0:9810:6414',
 104                    'if': 'xe0'},
 105                   {'network': '0064:ff9b:0:0:0:0:9810:2814',
 106                    'netmask': '112',
 107                    'gateway': '0064:ff9b:0:0:0:0:9810:2814',
 108                    'if': 'xe1'}],
 109                  'id': 'vpevnf-baremetal',
 110                  'external-interface':
 111                  [{'virtual-interface':
 112                    {'dst_mac': '00:00:00:00:00:04',
 113                     'vpci': '0000:05:00.0',
 114                     'local_ip': '152.16.100.19',
 115                     'type': 'PCI-PASSTHROUGH',
 116                     'netmask': '255.255.255.0',
 117                     'dpdk_port_num': 0,
 118                     'bandwidth': '10 Gbps',
 119                     'driver': "i40e",
 120                     'dst_ip': '152.16.100.20',
 121                     'local_iface_name': 'xe0',
 122                     'local_mac': '00:00:00:00:00:02'},
 123                    'vnfd-connection-point-ref': 'xe0',
 124                    'name': 'xe0'},
 125                   {'virtual-interface':
 126                    {'dst_mac': '00:00:00:00:00:03',
 127                     'vpci': '0000:05:00.1',
 128                     'local_ip': '152.16.40.19',
 129                     'type': 'PCI-PASSTHROUGH',
 130                     'driver': "i40e",
 131                     'netmask': '255.255.255.0',
 132                     'dpdk_port_num': 1,
 133                     'bandwidth': '10 Gbps',
 134                     'dst_ip': '152.16.40.20',
 135                     'local_iface_name': 'xe1',
 136                     'local_mac': '00:00:00:00:00:01'},
 137                    'vnfd-connection-point-ref': 'xe1',
 138                    'name': 'xe1'}]}],
 139                'description': 'Vpe approximation using DPDK',
 140                'mgmt-interface':
 141                    {'vdu-id': 'vpevnf-baremetal',
 142                     'host': '1.2.1.1',
 143                     'password': 'r00t',
 144                     'user': 'root',
 145                     'ip': '1.2.1.1'},
 146                'benchmark':
 147                    {'kpi': ['packets_in', 'packets_fwd', 'packets_dropped']},
 148                'connection-point': [{'type': 'VPORT', 'name': 'xe0'},
 149                                     {'type': 'VPORT', 'name': 'xe1'}],
 150                'id': 'CgnaptApproxVnf', 'name': 'VPEVnfSsh'}]}}
 151
 152     SCENARIO_CFG = {
 153         'options': {
 154             'packetsize': 64,
 155             'traffic_type': 4,
 156             'rfc2544': {
 157                 'allowed_drop_rate': '0.8 - 1',
 158             },
 159             'vnf__0': {
 160                 'napt': 'dynamic',
 161                 'vnf_config': {
 162                     'lb_config': 'SW',
 163                     'lb_count': 1,
 164                     'worker_config':
 165                     '1C/1T',
 166                     'worker_threads': 1,
 167                 },
 168             },
 169             'flow': {'count': 1,
 170                      'dst_ip': [{'tg__1': 'xe0'}],
 171                      'public_ip': [''],
 172                      'src_ip': [{'tg__0': 'xe0'}]},
 173         },
 174         'task_id': 'a70bdf4a-8e67-47a3-9dc1-273c14506eb7',
 175         'task_path': '/tmp',
 176         'tc': 'tc_ipv4_1Mflow_64B_packetsize',
 177         'runner': {
 178             'object': 'NetworkServiceTestCase',
 179             'interval': 35,
 180             'output_filename': '/tmp/yardstick.out',
 181             'runner_id': 74476,
 182             'duration': 400,
 183             'type': 'Duration',
 184         },
 185         'traffic_profile': 'ipv4_throughput_acl.yaml',
 186         'type': 'NSPerf',
 187         'nodes': {
 188             'tg__1': 'trafficgen_1.yardstick',
 189             'tg__0': 'trafficgen_0.yardstick',
 190             'vnf__0': 'vnf.yardstick',
 191         },
 192         'topology': 'vpe-tg-topology-baremetal.yaml',
 193     }
 194
 195     context_cfg = {'nodes': {'tg__2':
 196                              {'member-vnf-index': '3',
 197                               'role': 'TrafficGen',
 198                               'name': 'trafficgen_2.yardstick',
 199                               'vnfd-id-ref': 'tg__2',
 200                               'ip': '1.2.1.1',
 201                               'interfaces':
 202                               {'xe0': {'local_iface_name': 'ens513f0',
 203                                        'vld_id': CgnaptApproxVnf.DOWNLINK,
 204                                        'netmask': '255.255.255.0',
 205                                        'local_ip': '152.16.40.20',
 206                                        'dst_mac': '00:00:00:00:00:01',
 207                                        'local_mac': '00:00:00:00:00:03',
 208                                        'dst_ip': '152.16.40.19',
 209                                        'driver': 'ixgbe',
 210                                        'vpci': '0000:02:00.0',
 211                                        'dpdk_port_num': 0},
 212                                'xe1': {'local_iface_name': 'ens513f1',
 213                                        'netmask': '255.255.255.0',
 214                                        'network': '202.16.100.0',
 215                                        'local_ip': '202.16.100.20',
 216                                        'local_mac': '00:1e:67:d0:60:5d',
 217                                        'driver': 'ixgbe',
 218                                        'vpci': '0000:02:00.1',
 219                                        'dpdk_port_num': 1}},
 220                               'password': 'r00t',
 221                               'VNF model': 'l3fwd_vnf.yaml',
 222                               'user': 'root'},
 223                              'tg__1':
 224                              {'member-vnf-index': '1',
 225                               'role': 'TrafficGen',
 226                               'name': 'trafficgen_1.yardstick',
 227                               'vnfd-id-ref': 'tg__1',
 228                               'ip': '1.2.1.1',
 229                               'interfaces':
 230                               {'xe0': {'local_iface_name': 'ens785f0',
 231                                        'vld_id': CgnaptApproxVnf.UPLINK,
 232                                        'netmask': '255.255.255.0',
 233                                        'local_ip': '152.16.100.20',
 234                                        'dst_mac': '00:00:00:00:00:02',
 235                                        'local_mac': '00:00:00:00:00:04',
 236                                        'dst_ip': '152.16.100.19',
 237                                        'driver': 'i40e',
 238                                        'vpci': '0000:05:00.0',
 239                                        'dpdk_port_num': 0},
 240                                'xe1': {'local_iface_name': 'ens785f1',
 241                                        'netmask': '255.255.255.0',
 242                                        'local_ip': '152.16.100.21',
 243                                        'local_mac': '00:00:00:00:00:01',
 244                                        'driver': 'i40e',
 245                                        'vpci': '0000:05:00.1',
 246                                        'dpdk_port_num': 1}},
 247                               'password': 'r00t',
 248                               'VNF model': 'tg_rfc2544_tpl.yaml',
 249                               'user': 'root'},
 250                              'vnf__0':
 251                              {'name': 'vnf.yardstick',
 252                               'vnfd-id-ref': 'vnf__0',
 253                               'ip': '1.2.1.1',
 254                               'interfaces':
 255                               {'xe0': {'local_iface_name': 'ens786f0',
 256                                        'vld_id': CgnaptApproxVnf.UPLINK,
 257                                        'netmask': '255.255.255.0',
 258                                        'local_ip': '152.16.100.19',
 259                                        'dst_mac': '00:00:00:00:00:04',
 260                                        'local_mac': '00:00:00:00:00:02',
 261                                        'dst_ip': '152.16.100.20',
 262                                        'driver': 'i40e',
 263                                        'vpci': '0000:05:00.0',
 264                                        'dpdk_port_num': 0},
 265                                'xe1': {'local_iface_name': 'ens786f1',
 266                                        'vld_id': CgnaptApproxVnf.DOWNLINK,
 267                                        'netmask': '255.255.255.0',
 268                                        'local_ip': '152.16.40.19',
 269                                        'dst_mac': '00:00:00:00:00:03',
 270                                        'local_mac': '00:00:00:00:00:01',
 271                                        'dst_ip': '152.16.40.20',
 272                                        'driver': 'i40e',
 273                                        'vpci': '0000:05:00.1',
 274                                        'dpdk_port_num': 1}},
 275                               'routing_table':
 276                               [{'netmask': '255.255.255.0',
 277                                 'gateway': '152.16.100.20',
 278                                 'network': '152.16.100.20',
 279                                 'if': 'xe0'},
 280                                {'netmask': '255.255.255.0',
 281                                 'gateway': '152.16.40.20',
 282                                 'network': '152.16.40.20',
 283                                 'if': 'xe1'}],
 284                               'member-vnf-index': '2',
 285                               'host': '1.2.1.1',
 286                               'role': 'vnf',
 287                               'user': 'root',
 288                               'nd_route_tbl':
 289                               [{'netmask': '112',
 290                                 'gateway': '0064:ff9b:0:0:0:0:9810:6414',
 291                                 'network': '0064:ff9b:0:0:0:0:9810:6414',
 292                                 'if': 'xe0'},
 293                                {'netmask': '112',
 294                                 'gateway': '0064:ff9b:0:0:0:0:9810:2814',
 295                                 'network': '0064:ff9b:0:0:0:0:9810:2814',
 296                                 'if': 'xe1'}],
 297                               'password': 'r00t',
 298                               'VNF model': 'cgnapt_vnf.yaml'}}}
 299
 300     def setUp(self):
 301         self.scenario_cfg = deepcopy(self.SCENARIO_CFG)
 302
 303     def test___init__(self, *args):
 304         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
 305         cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
 306         self.assertIsNone(cgnapt_approx_vnf._vnf_process)
 307
 308     @mock.patch('yardstick.network_services.vnf_generic.vnf.sample_vnf.time')
 309     @mock.patch(SSH_HELPER)
 310     def test_collect_kpi(self, ssh, *args):
 311         mock_ssh(ssh)
 312
 313         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
 314         cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
 315         cgnapt_approx_vnf._vnf_process = mock.MagicMock(
 316             **{"is_alive.return_value": True, "exitcode": None})
 317         cgnapt_approx_vnf.q_in = mock.MagicMock()
 318         cgnapt_approx_vnf.q_out = mock.MagicMock()
 319         cgnapt_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
 320         cgnapt_approx_vnf.resource = mock.Mock(autospec=ResourceProfile)
 321         result = {'packets_dropped': 0, 'packets_fwd': 0, 'packets_in': 0}
 322         self.assertEqual(result, cgnapt_approx_vnf.collect_kpi())
 323
 324     @mock.patch('yardstick.network_services.vnf_generic.vnf.sample_vnf.time')
 325     @mock.patch(SSH_HELPER)
 326     def test_vnf_execute_command(self, ssh, *args):
 327         mock_ssh(ssh)
 328
 329         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
 330         cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
 331         cgnapt_approx_vnf.q_in = mock.MagicMock()
 332         cgnapt_approx_vnf.q_out = mock.MagicMock()
 333         cgnapt_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
 334         cmd = "quit"
 335         self.assertEqual("", cgnapt_approx_vnf.vnf_execute(cmd))
 336
 337     @mock.patch(SSH_HELPER)
 338     def test_get_stats(self, ssh, *args):
 339         mock_ssh(ssh)
 340
 341         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
 342         cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
 343         cgnapt_approx_vnf.q_in = mock.MagicMock()
 344         cgnapt_approx_vnf.q_out = mock.MagicMock()
 345         cgnapt_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
 346         result = \
 347             "CG-NAPT(.*\n)*Received 100, Missed 0, Dropped 0,Translated 100,ingress"
 348         cgnapt_approx_vnf.vnf_execute = mock.Mock(return_value=result)
 349         self.assertListEqual(list(result), list(cgnapt_approx_vnf.get_stats()))
 350
 351     def _get_file_abspath(self, filename):
 352         curr_path = os.path.dirname(os.path.abspath(__file__))
 353         file_path = os.path.join(curr_path, filename)
 354         return file_path
 355
 356     @mock.patch("yardstick.network_services.vnf_generic.vnf.cgnapt_vnf.hex")
 357     @mock.patch("yardstick.network_services.vnf_generic.vnf.cgnapt_vnf.eval")
 358     @mock.patch('yardstick.network_services.vnf_generic.vnf.cgnapt_vnf.open')
 359     @mock.patch(SSH_HELPER)
 360     def test_run_vcgnapt(self, ssh, *args):
 361         mock_ssh(ssh)
 362
 363         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
 364         cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
 365         cgnapt_approx_vnf._build_config = mock.MagicMock()
 366         cgnapt_approx_vnf.queue_wrapper = mock.MagicMock()
 367         cgnapt_approx_vnf.ssh_helper = mock.MagicMock()
 368         cgnapt_approx_vnf.ssh_helper.run = mock.MagicMock()
 369         cgnapt_approx_vnf.scenario_helper.scenario_cfg = self.scenario_cfg
 370         cgnapt_approx_vnf._run()
 371         cgnapt_approx_vnf.ssh_helper.run.assert_called_once()
 372
 373     @mock.patch("yardstick.network_services.vnf_generic.vnf.sample_vnf.Context")
 374     @mock.patch(SSH_HELPER)
 375     def test_instantiate(self, ssh, *args):
 376         mock_ssh(ssh)
 377
 378         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
 379         cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
 380         cgnapt_approx_vnf.deploy_helper = mock.MagicMock()
 381         cgnapt_approx_vnf.resource_helper = mock.MagicMock()
 382         cgnapt_approx_vnf._build_config = mock.MagicMock()
 383         self.scenario_cfg['vnf_options'] = {'acl': {'cfg': "",
 384                                                     'rules': ""}}
 385         cgnapt_approx_vnf.q_out.put("pipeline>")
 386         cgnapt_vnf.WAIT_TIME = 3
 387         self.scenario_cfg.update({"nodes": {"vnf__0": ""}})
 388         self.assertIsNone(cgnapt_approx_vnf.instantiate(self.scenario_cfg,
 389                                                         self.context_cfg))
 390
 391     @mock.patch("yardstick.network_services.vnf_generic.vnf.sample_vnf.time")
 392     @mock.patch(SSH_HELPER)
 393     def test__vnf_up_post(self, ssh, *args):
 394         mock_ssh(ssh)
 395
 396         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
 397         self.scenario_cfg['options'][name]['napt'] = 'static'
 398
 399         cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
 400         cgnapt_approx_vnf._vnf_process = mock.MagicMock()
 401         cgnapt_approx_vnf._vnf_process.terminate = mock.Mock()
 402         cgnapt_approx_vnf.vnf_execute = mock.MagicMock()
 403         cgnapt_approx_vnf.scenario_helper.scenario_cfg = self.scenario_cfg
 404         cgnapt_approx_vnf._resource_collect_stop = mock.Mock()
 405         cgnapt_approx_vnf._vnf_up_post()
 406
 407     @mock.patch("yardstick.network_services.vnf_generic.vnf.sample_vnf.time")
 408     @mock.patch(SSH_HELPER)
 409     def test__vnf_up_post_short(self, ssh, *args):
 410         mock_ssh(ssh)
 411
 412         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
 413         cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
 414         cgnapt_approx_vnf._vnf_process = mock.MagicMock()
 415         cgnapt_approx_vnf._vnf_process.terminate = mock.Mock()
 416         cgnapt_approx_vnf.vnf_execute = mock.MagicMock()
 417         cgnapt_approx_vnf.scenario_helper.scenario_cfg = self.scenario_cfg
 418         cgnapt_approx_vnf._resource_collect_stop = mock.Mock()
 419         cgnapt_approx_vnf._vnf_up_post()