test/test_vm_vpp_interfaces.py

   1 #!/usr/bin/env python3
   2 import unittest
   3 from ipaddress import ip_address, ip_interface
   4 from vpp_qemu_utils import (
   5     create_namespace,
   6     delete_namespace,
   7     create_host_interface,
   8     delete_host_interfaces,
   9     set_interface_mtu,
  10     disable_interface_gso,
  11     add_namespace_route,
  12 )
  13 from vpp_iperf import start_iperf, stop_iperf
  14 from framework import VppTestCase, VppTestRunner
  15 from config import config
  16 from vpp_papi import VppEnum
  17 import time
  18 import sys
  19 from vm_test_config import test_config
  20
  21 #
  22 # Tests for:
  23 # - tapv2, tunv2 & af_packet_v2 & v3 interfaces.
  24 # - reads test config from the file vm_test_config.py
  25 # - Uses iPerf to send TCP/IP streams to VPP
  26 #   - VPP ingress interface runs the iperf client
  27 #   - VPP egress interface runs the iperf server
  28 # - Runs tests specified in the vm_test_config module and verifies that:
  29 #   - TCP over IPv4 and IPv6 is enabled correctly for Bridged and Routed topologies.
  30 #     sending jumbo frames (9000/9001 MTUs) with GSO/GRO is enabled correctly.
  31 #     sending VPP buffer-sized frames(2048 MTU) with GSO/GRO is enabled correctly.
  32 #     sending standard frames (1500 MTU) with GSO/GRO is enabled correctly.
  33 #     sending smaller frames (512 MTU) with GSO/GRO is enabled correctly for IPv4
  34 #     sending odd sized frames (9001, 2049 MTU) with GSO/GRO is enabled correctly.
  35 #
  36
  37
  38 def filter_tests(test):
  39     """Filter test IDs to include only those selected to run."""
  40     selection = test_config["tests_to_run"]
  41     if not selection or selection == " ":
  42         return True
  43     else:
  44         test_ids_to_run = []
  45         for test_id in selection.split(","):
  46             if "-" in test_id.strip():
  47                 start, end = map(int, test_id.split("-"))
  48                 test_ids_to_run.extend(list(range(start, end + 1)))
  49             elif test_id.strip():
  50                 test_ids_to_run.append(int(test_id))
  51         return test["id"] in test_ids_to_run
  52
  53
  54 # Test Config variables
  55 client_namespace = test_config["client_namespace"]
  56 server_namespace = test_config["server_namespace"]
  57 tests = filter(filter_tests, test_config["tests"])
  58 af_packet_config = test_config["af_packet"]
  59 layer2 = test_config["L2"]
  60 layer3 = test_config["L3"]
  61
  62
  63 def create_test(test_name, test, ip_version, mtu):
  64     """Create and return a unittest method for a test."""
  65
  66     @unittest.skipUnless(config.extended, "part of extended tests")
  67     def test_func(self):
  68         self.logger.debug(f"Starting unittest:{test_name}")
  69         self.setUpTestToplogy(test=test, ip_version=ip_version)
  70         result = self.set_interfaces_mtu(
  71             mtu=mtu,
  72             ip_version=ip_version,
  73             vpp_interfaces=self.vpp_interfaces,
  74             linux_interfaces=self.linux_interfaces,
  75         )
  76         # Start the Iperf server in dual stack mode & run iperf client
  77         if result is True:
  78             start_iperf(ip_version=6, server_only=True, logger=self.logger)
  79             self.assertTrue(
  80                 start_iperf(
  81                     ip_version=ip_version,
  82                     server_ipv4_address=self.server_ip4_address,
  83                     server_ipv6_address=self.server_ip6_address,
  84                     client_only=True,
  85                     duration=2,
  86                     logger=self.logger,
  87                 )
  88             )
  89         else:
  90             print(
  91                 f"Skipping test:{test_name} as mtu:{mtu} is "
  92                 f"invalid for TCP/IPv{ip_version}"
  93             )
  94
  95     test_func.__name__ = test_name
  96     return test_func
  97
  98
  99 def generate_vpp_interface_tests():
 100     """Generate unittests for testing vpp interfaces."""
 101     for test in tests:
 102         for ip_version in test_config["ip_versions"]:
 103             for mtu in test_config["mtus"]:
 104                 test_name = (
 105                     f"test_id_{test['id']}_"
 106                     + f"client_{test['client_if_type']}"
 107                     + f"_v{test['client_if_version']}_"
 108                     + f"gso_{test.get('client_if_gso', 0)}_"
 109                     + f"gro_{test.get('client_if_gro', 0)}_"
 110                     + f"to_server_{test['server_if_type']}"
 111                     + f"_v{test['server_if_version']}_"
 112                     + f"gso_{test.get('server_if_gso', 0)}_"
 113                     + f"gro_{test.get('server_if_gro', 0)}_"
 114                     + f"mtu_{mtu}_mode_{test['x_connect_mode']}_"
 115                     + f"tcp_ipv{ip_version}"
 116                 )
 117                 test_func = create_test(
 118                     test_name=test_name, test=test, ip_version=ip_version, mtu=mtu
 119                 )
 120                 setattr(TestVPPInterfacesQemu, test_name, test_func)
 121
 122
 123 class TestVPPInterfacesQemu(VppTestCase):
 124     """Test VPP interfaces inside a QEMU VM for IPv4/v6.
 125
 126     Test Setup:
 127     Linux_ns1--iperfClient--host-int1--vpp-af_packet-int1--VPP-BD
 128              --vppaf_packet_int2--host-int2--iperfServer--Linux_ns2
 129     """
 130
 131     @classmethod
 132     def setUpClass(cls):
 133         super(TestVPPInterfacesQemu, cls).setUpClass()
 134
 135     @classmethod
 136     def tearDownClass(cls):
 137         super(TestVPPInterfacesQemu, cls).tearDownClass()
 138
 139     def setUpTestToplogy(self, test, ip_version):
 140         """Setup the test topology.
 141
 142         1. Create Linux Namespaces for iPerf Client & Server.
 143         2. Create VPP iPerf client and server virtual interfaces.
 144         3. Enable desired vif features such as GSO & GRO.
 145         3. Cross-Connect interfaces in VPP using L2 or L3.
 146         """
 147         super(TestVPPInterfacesQemu, self).setUp()
 148         client_if_type = test["client_if_type"]
 149         server_if_type = test["server_if_type"]
 150         client_if_version = test["client_if_version"]
 151         server_if_version = test["server_if_version"]
 152         x_connect_mode = test["x_connect_mode"]
 153         # server ip4/ip6 addresses required by iperf client
 154         server_ip4_prefix = (
 155             layer2["server_ip4_prefix"]
 156             if x_connect_mode == "L2"
 157             else layer3["server_ip4_prefix"]
 158         )
 159         server_ip6_prefix = (
 160             layer2["server_ip6_prefix"]
 161             if x_connect_mode == "L2"
 162             else layer3["server_ip6_prefix"]
 163         )
 164         self.server_ip4_address = str(ip_interface(server_ip4_prefix).ip)
 165         self.server_ip6_address = str(ip_interface(server_ip6_prefix).ip)
 166         # next-hop IP address on VPP for routing from client & server namespaces
 167         vpp_client_prefix = (
 168             layer3["vpp_client_ip4_prefix"]
 169             if ip_version == 4
 170             else layer3["vpp_client_ip6_prefix"]
 171         )
 172         vpp_client_nexthop = str(ip_interface(vpp_client_prefix).ip)
 173         vpp_server_prefix = (
 174             layer3["vpp_server_ip4_prefix"]
 175             if ip_version == 4
 176             else layer3["vpp_server_ip6_prefix"]
 177         )
 178         vpp_server_nexthop = str(ip_interface(vpp_server_prefix).ip)
 179         create_namespace([client_namespace, server_namespace])
 180         self.vpp_interfaces = []
 181         self.linux_interfaces = []
 182         enable_client_if_gso = test.get("client_if_gso", 0)
 183         enable_server_if_gso = test.get("server_if_gso", 0)
 184         enable_client_if_gro = test.get("client_if_gro", 0)
 185         enable_server_if_gro = test.get("server_if_gro", 0)
 186         ## Handle client interface types
 187         if client_if_type == "af_packet":
 188             create_host_interface(
 189                 af_packet_config["iprf_client_interface_on_linux"],
 190                 af_packet_config["iprf_client_interface_on_vpp"],
 191                 client_namespace,
 192                 layer2["client_ip4_prefix"]
 193                 if x_connect_mode == "L2"
 194                 else layer3["client_ip4_prefix"],
 195                 layer2["client_ip6_prefix"]
 196                 if x_connect_mode == "L2"
 197                 else layer3["client_ip6_prefix"],
 198             )
 199             self.ingress_if_idx = self.create_af_packet(
 200                 version=client_if_version,
 201                 host_if_name=af_packet_config["iprf_client_interface_on_vpp"],
 202                 enable_gso=enable_client_if_gso,
 203             )
 204             self.vpp_interfaces.append(self.ingress_if_idx)
 205             self.linux_interfaces.append(
 206                 ["", af_packet_config["iprf_client_interface_on_vpp"]]
 207             )
 208             self.linux_interfaces.append(
 209                 [client_namespace, af_packet_config["iprf_client_interface_on_linux"]]
 210             )
 211             if enable_client_if_gso == 0:
 212                 disable_interface_gso(
 213                     "", af_packet_config["iprf_client_interface_on_vpp"]
 214                 )
 215                 disable_interface_gso(
 216                     client_namespace, af_packet_config["iprf_client_interface_on_linux"]
 217                 )
 218         elif client_if_type == "tap" or client_if_type == "tun":
 219             self.ingress_if_idx = self.create_tap_tun(
 220                 id=101,
 221                 host_namespace=client_namespace,
 222                 ip_version=ip_version,
 223                 host_ip4_prefix=layer2["client_ip4_prefix"]
 224                 if x_connect_mode == "L2"
 225                 else layer3["client_ip4_prefix"],
 226                 host_ip6_prefix=layer2["client_ip6_prefix"]
 227                 if x_connect_mode == "L2"
 228                 else layer3["client_ip6_prefix"],
 229                 host_ip4_gw=vpp_client_nexthop
 230                 if x_connect_mode == "L3" and ip_version == 4
 231                 else None,
 232                 host_ip6_gw=vpp_client_nexthop
 233                 if x_connect_mode == "L3" and ip_version == 6
 234                 else None,
 235                 int_type=client_if_type,
 236                 host_if_name=f"{client_if_type}0",
 237                 enable_gso=enable_client_if_gso,
 238                 enable_gro=enable_client_if_gro,
 239             )
 240             self.vpp_interfaces.append(self.ingress_if_idx)
 241             self.linux_interfaces.append([client_namespace, f"{client_if_type}0"])
 242             # Seeing TCP timeouts if tx=on & rx=on Linux tap & tun interfaces
 243             disable_interface_gso(client_namespace, f"{client_if_type}0")
 244         else:
 245             print(
 246                 f"Unsupported client interface type: {client_if_type} "
 247                 f"for test - ID={test['id']}"
 248             )
 249             sys.exit(1)
 250
 251         if server_if_type == "af_packet":
 252             create_host_interface(
 253                 af_packet_config["iprf_server_interface_on_linux"],
 254                 af_packet_config["iprf_server_interface_on_vpp"],
 255                 server_namespace,
 256                 server_ip4_prefix,
 257                 server_ip6_prefix,
 258             )
 259             self.egress_if_idx = self.create_af_packet(
 260                 version=server_if_version,
 261                 host_if_name=af_packet_config["iprf_server_interface_on_vpp"],
 262                 enable_gso=enable_server_if_gso,
 263             )
 264             self.vpp_interfaces.append(self.egress_if_idx)
 265             self.linux_interfaces.append(
 266                 ["", af_packet_config["iprf_server_interface_on_vpp"]]
 267             )
 268             self.linux_interfaces.append(
 269                 [server_namespace, af_packet_config["iprf_server_interface_on_linux"]]
 270             )
 271             if enable_server_if_gso == 0:
 272                 disable_interface_gso(
 273                     "", af_packet_config["iprf_server_interface_on_vpp"]
 274                 )
 275                 disable_interface_gso(
 276                     server_namespace, af_packet_config["iprf_server_interface_on_linux"]
 277                 )
 278         elif server_if_type == "tap" or server_if_type == "tun":
 279             self.egress_if_idx = self.create_tap_tun(
 280                 id=102,
 281                 host_namespace=server_namespace,
 282                 ip_version=ip_version,
 283                 host_ip4_prefix=layer2["server_ip4_prefix"]
 284                 if x_connect_mode == "L2"
 285                 else layer3["server_ip4_prefix"],
 286                 host_ip6_prefix=layer2["server_ip6_prefix"]
 287                 if x_connect_mode == "L2"
 288                 else layer3["server_ip6_prefix"],
 289                 int_type=server_if_type,
 290                 host_if_name=f"{server_if_type}0",
 291                 enable_gso=enable_server_if_gso,
 292                 enable_gro=enable_server_if_gro,
 293             )
 294             self.vpp_interfaces.append(self.egress_if_idx)
 295             self.linux_interfaces.append([server_namespace, f"{server_if_type}0"])
 296             # Seeing TCP timeouts if tx=on & rx=on Linux tap & tun interfaces
 297             disable_interface_gso(server_namespace, f"{server_if_type}0")
 298         else:
 299             print(
 300                 f"Unsupported server interface type: {server_if_type} "
 301                 f"for test - ID={test['id']}"
 302             )
 303             sys.exit(1)
 304
 305         if x_connect_mode == "L2":
 306             self.l2_connect_interfaces(1, self.ingress_if_idx, self.egress_if_idx)
 307         elif x_connect_mode == "L3":
 308             # L3 connect client & server side
 309             vrf_id = layer3["ip4_vrf"] if ip_version == 4 else layer3["ip6_vrf"]
 310             self.l3_connect_interfaces(
 311                 ip_version,
 312                 vrf_id,
 313                 (self.ingress_if_idx, vpp_client_prefix),
 314                 (self.egress_if_idx, vpp_server_prefix),
 315             )
 316             # Setup namespace routing
 317             if ip_version == 4:
 318                 add_namespace_route(client_namespace, "0.0.0.0/0", vpp_client_nexthop)
 319                 add_namespace_route(server_namespace, "0.0.0.0/0", vpp_server_nexthop)
 320             else:
 321                 add_namespace_route(client_namespace, "::/0", vpp_client_nexthop)
 322                 add_namespace_route(server_namespace, "::/0", vpp_server_nexthop)
 323         # Wait for Linux IPv6 stack to become ready
 324         if ip_version == 6:
 325             time.sleep(2)
 326
 327     def tearDown(self):
 328         try:
 329             self.vapi.tap_delete_v2(self.ingress_if_idx)
 330         except Exception:
 331             pass
 332         try:
 333             self.vapi.tap_delete_v2(self.egress_if_idx)
 334         except Exception:
 335             pass
 336         try:
 337             for interface in self.vapi.af_packet_dump():
 338                 if (
 339                     interface.host_if_name
 340                     == af_packet_config["iprf_client_interface_on_vpp"]
 341                 ):
 342                     self.vapi.af_packet_delete(
 343                         af_packet_config["iprf_client_interface_on_vpp"]
 344                     )
 345                 elif (
 346                     interface.host_if_name
 347                     == af_packet_config["iprf_server_interface_on_vpp"]
 348                 ):
 349                     self.vapi.af_packet_delete(
 350                         af_packet_config["iprf_server_interface_on_vpp"]
 351                     )
 352         except Exception:
 353             pass
 354         try:
 355             delete_host_interfaces(
 356                 af_packet_config["iprf_client_interface_on_linux"],
 357                 af_packet_config["iprf_server_interface_on_linux"],
 358                 af_packet_config["iprf_client_interface_on_vpp"],
 359                 af_packet_config["iprf_server_interface_on_vpp"],
 360             )
 361         except Exception:
 362             pass
 363         try:
 364             self.vapi.ip_table_add_del(is_add=0, table={"table_id": layer3["ip4_vrf"]})
 365         except Exception:
 366             pass
 367         try:
 368             self.vapi.ip_table_add_del(is_add=0, table={"table_id": layer3["ip6_vrf"]})
 369         except Exception:
 370             pass
 371         try:
 372             delete_namespace(
 373                 [
 374                     client_namespace,
 375                     server_namespace,
 376                 ]
 377             )
 378         except Exception:
 379             pass
 380         try:
 381             stop_iperf()
 382         except Exception:
 383             pass
 384
 385     def create_af_packet(self, version, host_if_name, enable_gso=0):
 386         """Create an af_packetv3 interface in VPP.
 387
 388         Parameters:
 389         version -- 2 for af_packet_create_v2
 390                 -- 3 for af_packet_create_v3
 391         host_if_name -- host interface name
 392         enable_gso -- Enable GSO on the interface when True
 393         """
 394         af_packet_mode = VppEnum.vl_api_af_packet_mode_t
 395         af_packet_interface_mode = af_packet_mode.AF_PACKET_API_MODE_ETHERNET
 396         af_packet_flags = VppEnum.vl_api_af_packet_flags_t
 397         af_packet_interface_flags = af_packet_flags.AF_PACKET_API_FLAG_QDISC_BYPASS
 398         if enable_gso:
 399             af_packet_interface_flags = (
 400                 af_packet_interface_flags | af_packet_flags.AF_PACKET_API_FLAG_CKSUM_GSO
 401             )
 402         if version == 2:
 403             af_packet_interface_flags = (
 404                 af_packet_interface_flags | af_packet_flags.AF_PACKET_API_FLAG_VERSION_2
 405             )
 406         api_args = {
 407             "use_random_hw_addr": True,
 408             "host_if_name": host_if_name,
 409             "flags": af_packet_interface_flags,
 410         }
 411         api_args["mode"] = af_packet_interface_mode
 412         result = self.vapi.af_packet_create_v3(**api_args)
 413         sw_if_index = result.sw_if_index
 414         # Enable software GSO chunking when interface doesn't support GSO offload
 415         if enable_gso == 0:
 416             self.vapi.feature_gso_enable_disable(
 417                 sw_if_index=sw_if_index, enable_disable=1
 418             )
 419         else:
 420             self.vapi.feature_gso_enable_disable(
 421                 sw_if_index=sw_if_index, enable_disable=0
 422             )
 423         self.vapi.sw_interface_set_flags(sw_if_index=sw_if_index, flags=1)
 424         return sw_if_index
 425
 426     def create_tap_tun(
 427         self,
 428         id,
 429         host_namespace,
 430         ip_version,
 431         host_ip4_prefix=None,
 432         host_ip6_prefix=None,
 433         host_ip4_gw=None,
 434         host_ip6_gw=None,
 435         int_type="tap",
 436         host_if_name=None,
 437         enable_gso=0,
 438         enable_gro=0,
 439     ):
 440         """Create a tapv2 or tunv2 interface in VPP and attach to host.
 441
 442         Parameters:
 443         id -- interface ID
 444         host_namespace -- host namespace to attach the tap/tun interface to
 445         ip_version -- 4 or 6
 446         host_ip4_prefix -- ipv4 host interface address in CIDR notation
 447                            if ip_version=4
 448         host_ip6_prefix -- ipv6 host interface address in CIDR notation
 449                            if ip_version=6
 450         host_ip4_gw -- host IPv4 default gateway IP Address
 451         host_ip6_gw -- host IPv6 default gateway IP address
 452         int_type -- "tap" for tapv2  &  "tun" for tunv2 interface
 453         host_if_name -- host side interface name
 454         enable_gso -- enable GSO
 455         enable_gro -- enable GSO/GRO-Coalesce
 456         """
 457         TapFlags = VppEnum.vl_api_tap_flags_t
 458         tap_flags = 0
 459         if int_type == "tun":
 460             tap_flags = TapFlags.TAP_API_FLAG_TUN
 461             if enable_gro:
 462                 tap_flags = tap_flags | (
 463                     TapFlags.TAP_API_FLAG_GSO | TapFlags.TAP_API_FLAG_GRO_COALESCE
 464                 )
 465             elif enable_gso:
 466                 tap_flags = tap_flags | TapFlags.TAP_API_FLAG_GSO
 467         elif int_type == "tap":
 468             if enable_gro:
 469                 tap_flags = (
 470                     TapFlags.TAP_API_FLAG_GSO | TapFlags.TAP_API_FLAG_GRO_COALESCE
 471                 )
 472             elif enable_gso:
 473                 tap_flags = TapFlags.TAP_API_FLAG_GSO
 474
 475         api_args = {
 476             "id": id,
 477             "host_namespace_set": True,
 478             "host_namespace": host_namespace,
 479             "host_if_name_set": False,
 480             "host_bridge_set": False,
 481             "host_mac_addr_set": False,
 482         }
 483         if tap_flags != 0:
 484             api_args["tap_flags"] = tap_flags
 485         if ip_version == 4:
 486             api_args["host_ip4_prefix"] = ip_interface(host_ip4_prefix)
 487             api_args["host_ip4_prefix_set"] = True
 488             if host_ip4_gw:
 489                 api_args["host_ip4_gw"] = ip_address(host_ip4_gw)
 490                 api_args["host_ip4_gw_set"] = True
 491         if ip_version == 6:
 492             api_args["host_ip6_prefix"] = ip_interface(host_ip6_prefix)
 493             api_args["host_ip6_prefix_set"] = True
 494             if host_ip6_gw:
 495                 api_args["host_ip6_gw"] = ip_address(host_ip6_gw)
 496                 api_args["host_ip6_gw_set"] = True
 497         if host_if_name:
 498             api_args["host_if_name"] = host_if_name
 499             api_args["host_if_name_set"] = True
 500
 501         result = self.vapi.tap_create_v2(**api_args)
 502         sw_if_index = result.sw_if_index
 503         # Enable software GSO chunking when interface doesn't support GSO offload and
 504         # GRO coalesce
 505         if enable_gso == 0 and enable_gro == 0:
 506             self.vapi.feature_gso_enable_disable(
 507                 sw_if_index=sw_if_index, enable_disable=1
 508             )
 509         else:
 510             self.vapi.feature_gso_enable_disable(
 511                 sw_if_index=sw_if_index, enable_disable=0
 512             )
 513         # Admin up
 514         self.vapi.sw_interface_set_flags(sw_if_index=sw_if_index, flags=1)
 515         return sw_if_index
 516
 517     def dump_bridge_domain_details(self, bd_id):
 518         return self.vapi.bridge_domain_dump(bd_id=bd_id)
 519
 520     def l2_connect_interfaces(self, bridge_id, *sw_if_idxs):
 521         for if_idx in sw_if_idxs:
 522             self.vapi.sw_interface_set_l2_bridge(
 523                 rx_sw_if_index=if_idx, bd_id=bridge_id, shg=0, port_type=0, enable=True
 524             )
 525
 526     def l3_connect_interfaces(self, ip_version, vrf_id, *if_idx_ip_prefixes):
 527         """Setup routing for (if_idx, ip_prefix) inside VPP.
 528
 529         arguments:
 530         if_idx_ip_prefixes -- sequence of (if_idx, ip_prefix) tuples
 531         ip_version -- 4 or 6
 532         vrf_id -- vrf_id
 533         """
 534         is_ipv6 = 0 if ip_version == 4 else 1
 535         self.vapi.ip_table_add_del(
 536             is_add=1, table={"table_id": vrf_id, "is_ip6": is_ipv6}
 537         )
 538         for sw_if_index, ip_prefix in if_idx_ip_prefixes:
 539             self.vapi.sw_interface_set_table(
 540                 sw_if_index=sw_if_index, is_ipv6=is_ipv6, vrf_id=vrf_id
 541             )
 542             self.vapi.sw_interface_add_del_address(
 543                 sw_if_index=sw_if_index, is_add=1, prefix=ip_interface(ip_prefix)
 544             )
 545
 546     def set_interfaces_mtu(self, mtu, ip_version, **kwargs):
 547         """Set MTUs on VPP and Linux interfaces.
 548
 549         arguments --
 550         mtu -- mtu value
 551         ip_version - 4 or 6
 552         kwargs['vpp_interfaces'] -- list of vpp interface if indexes
 553         kwargs['linux_interfaces'] -- list of tuples (namespace, interface_names)
 554         return True if mtu is set, else False
 555         """
 556         vpp_interfaces = kwargs.get("vpp_interfaces")
 557         linux_interfaces = kwargs.get("linux_interfaces")
 558         # IPv6 on Linux requires an MTU value >=1280
 559         if (ip_version == 6 and mtu >= 1280) or ip_version == 4:
 560             for sw_if_idx in vpp_interfaces:
 561                 self.vapi.sw_interface_set_mtu(
 562                     sw_if_index=sw_if_idx, mtu=[mtu, 0, 0, 0]
 563                 )
 564             for namespace, interface_name in linux_interfaces:
 565                 set_interface_mtu(
 566                     namespace=namespace,
 567                     interface=interface_name,
 568                     mtu=mtu,
 569                     logger=self.logger,
 570                 )
 571             return True
 572         else:
 573             return False
 574
 575
 576 generate_vpp_interface_tests()
 577
 578 if __name__ == "__main__":
 579     unittest.main(testRunner=VppTestRunner)