aboutsummaryrefslogtreecommitdiffstats
path: root/src/vcl/test/test_vcl.py
blob: d49bfbcaa359d45ee8348cb5b3c901731a133632 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
#!/usr/bin/env python3
""" Vpp VCL tests """

import unittest
import os
import subprocess
import signal
from framework import VppTestCase, VppTestRunner, running_extended_tests, \
    Worker
from vpp_ip_route import VppIpTable, VppIpRoute, VppRoutePath, FibPathProto

iperf3 = '/usr/bin/iperf3'


def have_app(app):
    try:
        subprocess.check_output([app, '-v'])
    except (subprocess.CalledProcessError, OSError):
        return False
    return True


_have_iperf3 = have_app(iperf3)


class VCLAppWorker(Worker):
    """ VCL Test Application Worker """

    def __init__(self, build_dir, appname, executable_args, logger, env=None,
                 *args, **kwargs):

        if env is None:
            env = {}
        vcl_lib_dir = "%s/vpp/lib" % build_dir
        if "iperf" in appname:
            app = appname
            env.update({'LD_PRELOAD':
                        "%s/libvcl_ldpreload.so" % vcl_lib_dir})
        elif "sock" in appname:
            app = "%s/vpp/bin/%s" % (build_dir, appname)
            env.update({'LD_PRELOAD':
                        "%s/libvcl_ldpreload.so" % vcl_lib_dir})
        else:
            app = "%s/vpp/bin/%s" % (build_dir, appname)
        self.args = [app] + executable_args
        super(VCLAppWorker, self).__init__(self.args, logger, env,
                                           *args, **kwargs)


class VCLTestCase(VppTestCase):
    """ VCL Test Class """

    @classmethod
    def setUpClass(cls):
        super(VCLTestCase, cls).setUpClass()

    @classmethod
    def tearDownClass(cls):
        super(VCLTestCase, cls).tearDownClass()

    def setUp(self):
        var = "VPP_BUILD_DIR"
        self.build_dir = os.getenv(var, None)
        if self.build_dir is None:
            raise EnvironmentError("Environment variable `%s' not set" % var)
        self.vppDebug = 'vpp_debug' in self.build_dir
        self.server_addr = "127.0.0.1"
        self.server_port = "22000"
        self.server_args = [self.server_port]
        self.server_ipv6_addr = "::1"
        self.server_ipv6_args = ["-6", self.server_port]
        self.timeout = 20
        self.echo_phrase = "Hello, world! Jenny is a friend of mine."
        self.pre_test_sleep = 0.3
        self.post_test_sleep = 0.2

        if os.path.isfile("/tmp/ldp_server_af_unix_socket"):
            os.remove("/tmp/ldp_server_af_unix_socket")

        super(VCLTestCase, self).setUp()

    def cut_thru_setup(self):
        self.vapi.session_enable_disable(is_enabled=1)

    def cut_thru_tear_down(self):
        self.vapi.session_enable_disable(is_enabled=0)

    def cut_thru_test(self, server_app, server_args, client_app, client_args):
        self.env = {'VCL_API_PREFIX': self.shm_prefix,
                    'VCL_APP_SCOPE_LOCAL': "true"}
        worker_server = VCLAppWorker(self.build_dir, server_app, server_args,
                                     self.logger, self.env)
        worker_server.start()
        self.sleep(self.pre_test_sleep)
        worker_client = VCLAppWorker(self.build_dir, client_app, client_args,
                                     self.logger, self.env)
        worker_client.start()
        worker_client.join(self.timeout)
        try:
            self.validateResults(worker_client, worker_server, self.timeout)
        except Exception as error:
            self.fail("Failed with %s" % error)
        self.sleep(self.post_test_sleep)

    def thru_host_stack_setup(self):
        self.vapi.session_enable_disable(is_enabled=1)
        self.create_loopback_interfaces(2)

        table_id = 1

        for i in self.lo_interfaces:
            i.admin_up()

            if table_id != 0:
                tbl = VppIpTable(self, table_id)
                tbl.add_vpp_config()

            i.set_table_ip4(table_id)
            i.config_ip4()
            table_id += 1

        # Configure namespaces
        self.vapi.app_namespace_add_del(namespace_id="1", secret=1234,
                                        sw_if_index=self.loop0.sw_if_index)
        self.vapi.app_namespace_add_del(namespace_id="2", secret=5678,
                                        sw_if_index=self.loop1.sw_if_index)

        # Add inter-table routes
        ip_t01 = VppIpRoute(self, self.loop1.local_ip4, 32,
                            [VppRoutePath("0.0.0.0",
                                          0xffffffff,
                                          nh_table_id=2)], table_id=1)
        ip_t10 = VppIpRoute(self, self.loop0.local_ip4, 32,
                            [VppRoutePath("0.0.0.0",
                                          0xffffffff,
                                          nh_table_id=1)], table_id=2)
        ip_t01.add_vpp_config()
        ip_t10.add_vpp_config()
        self.logger.debug(self.vapi.cli("show ip fib"))

    def thru_host_stack_tear_down(self):
        for i in self.lo_interfaces:
            i.unconfig_ip4()
            i.set_table_ip4(0)
            i.admin_down()

    def thru_host_stack_ipv6_setup(self):
        self.vapi.session_enable_disable(is_enabled=1)
        self.create_loopback_interfaces(2)

        table_id = 1

        for i in self.lo_interfaces:
            i.admin_up()

            tbl = VppIpTable(self, table_id, is_ip6=1)
            tbl.add_vpp_config()

            i.set_table_ip6(table_id)
            i.config_ip6()
            table_id += 1

        # Configure namespaces
        self.vapi.app_namespace_add_del(namespace_id="1", secret=1234,
                                        sw_if_index=self.loop0.sw_if_index)
        self.vapi.app_namespace_add_del(namespace_id="2", secret=5678,
                                        sw_if_index=self.loop1.sw_if_index)

        # Add inter-table routes
        ip_t01 = VppIpRoute(self, self.loop1.local_ip6, 128,
                            [VppRoutePath("::0", 0xffffffff,
                                          nh_table_id=2)],
                            table_id=1)
        ip_t10 = VppIpRoute(self, self.loop0.local_ip6, 128,
                            [VppRoutePath("::0", 0xffffffff,
                                          nh_table_id=1)],
                            table_id=2)
        ip_t01.add_vpp_config()
        ip_t10.add_vpp_config()
        self.logger.debug(self.vapi.cli("show interface addr"))
        self.logger.debug(self.vapi.cli("show ip6 fib"))

    def thru_host_stack_ipv6_tear_down(self):
        for i in self.lo_interfaces:
            i.unconfig_ip6()
            i.set_table_ip6(0)
            i.admin_down()

        self.vapi.session_enable_disable(is_enabled=0)

    @unittest.skipUnless(_have_iperf3, "'%s' not found, Skipping.")
    def thru_host_stack_test(self, server_app, server_args,
                             client_app, client_args):
        self.env = {'VCL_API_PREFIX': self.shm_prefix,
                    'VCL_APP_SCOPE_GLOBAL': "true",
                    'VCL_APP_NAMESPACE_ID': "1",
                    'VCL_APP_NAMESPACE_SECRET': "1234"}

        worker_server = VCLAppWorker(self.build_dir, server_app, server_args,
                                     self.logger, self.env)
        worker_server.start()
        self.sleep(self.pre_test_sleep)

        self.env.update({'VCL_APP_NAMESPACE_ID': "2",
                         'VCL_APP_NAMESPACE_SECRET': "5678"})
        worker_client = VCLAppWorker(self.build_dir, client_app, client_args,
                                     self.logger, self.env)
        worker_client.start()
        worker_client.join(self.timeout)

        try:
            self.validateResults(worker_client, worker_server, self.timeout)
        except Exception as error:
            self.fail("Failed with %s" % error)
        self.sleep(self.post_test_sleep)

    def validateResults(self, worker_client, worker_server, timeout):
        if worker_server.process is None:
            raise RuntimeError('worker_server is not running.')
        if os.path.isdir('/proc/{}'.format(worker_server.process.pid)):
            self.logger.info("Killing server worker process (pid %d)" %
                             worker_server.process.pid)
            os.killpg(os.getpgid(worker_server.process.pid), signal.SIGTERM)
            worker_server.join()
        self.logger.info("Client worker result is `%s'" % worker_client.result)
        error = False
        if worker_client.result is None:
            try:
                error = True
                self.logger.error(
                    "Timeout: %ss! Killing client worker process (pid %d)" %
                    (timeout, worker_client.process.pid))
                os.killpg(os.getpgid(worker_client.process.pid),
                          signal.SIGKILL)
                worker_client.join()
            except OSError:
                self.logger.debug(
                    "Couldn't kill client worker process")
                raise
        if error:
            raise RuntimeError(
                "Timeout! Client worker did not finish in %ss" % timeout)
        self.assert_equal(worker_client.result, 0, "Binary test return code")


class LDPCutThruTestCase(VCLTestCase):
    """ LDP Cut Thru Tests """

    @classmethod
    def setUpClass(cls):
        super(LDPCutThruTestCase, cls).setUpClass()

    @classmethod
    def tearDownClass(cls):
        super(LDPCutThruTestCase, cls).tearDownClass()

    def setUp(self):
        super(LDPCutThruTestCase, self).setUp()

        self.cut_thru_setup()
        self.client_echo_test_args = ["-E", self.echo_phrase, "-X",
                                      self.server_addr, self.server_port]
        self.client_iperf3_timeout = 20
        self.client_iperf3_args = ["-V4d", "-t 2", "-c", self.server_addr]
        self.server_iperf3_args = ["-V4d", "-s"]
        self.client_uni_dir_nsock_timeout = 20
        self.client_uni_dir_nsock_test_args = ["-N", "1000", "-U", "-X",
                                               "-I", "2",
                                               self.server_addr,
                                               self.server_port]
        self.client_bi_dir_nsock_timeout = 20
        self.client_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
                                              "-I", "2",
                                              self.server_addr,
                                              self.server_port]

    def tearDown(self):
        super(LDPCutThruTestCase, self).tearDown()
        self.cut_thru_tear_down()

    def show_commands_at_teardown(self):
        self.logger.debug(self.vapi.cli("show session verbose 2"))

    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    def test_ldp_cut_thru_echo(self):
        """ run LDP cut thru echo test """

        self.cut_thru_test("sock_test_server", self.server_args,
                           "sock_test_client", self.client_echo_test_args)

    @unittest.skipUnless(_have_iperf3, "'%s' not found, Skipping.")
    def test_ldp_cut_thru_iperf3(self):
        """ run LDP cut thru iperf3 test """

        self.timeout = self.client_iperf3_timeout
        self.cut_thru_test(iperf3, self.server_iperf3_args,
                           iperf3, self.client_iperf3_args)

    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    def test_ldp_cut_thru_uni_dir_nsock(self):
        """ run LDP cut thru uni-directional (multiple sockets) test """

        self.timeout = self.client_uni_dir_nsock_timeout
        self.cut_thru_test("sock_test_server", self.server_args,
                           "sock_test_client",
                           self.client_uni_dir_nsock_test_args)

    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    @unittest.skip("sock test apps need to be improved")
    def test_ldp_cut_thru_bi_dir_nsock(self):
        """ run LDP cut thru bi-directional (multiple sockets) test """

        self.timeout = self.client_bi_dir_nsock_timeout
        self.cut_thru_test("sock_test_server", self.server_args,
                           "sock_test_client",
                           self.client_bi_dir_nsock_test_args)


class VCLCutThruTestCase(VCLTestCase):
    """ VCL Cut Thru Tests """

    @classmethod
    def setUpClass(cls):
        super(VCLCutThruTestCase, cls).setUpClass()

    @classmethod
    def tearDownClass(cls):
        super(VCLCutThruTestCase, cls).tearDownClass()

    def setUp(self):
        super(VCLCutThruTestCase, self).setUp()

        self.cut_thru_setup()
        self.client_echo_test_args = ["-E", self.echo_phrase, "-X",
                                      self.server_addr, self.server_port]

        self.client_uni_dir_nsock_timeout = 20
        self.client_uni_dir_nsock_test_args = ["-N", "1000", "-U", "-X",
                                               "-I", "2",
                                               self.server_addr,
                                               self.server_port]
        self.client_bi_dir_nsock_timeout = 20
        self.client_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
                                              "-I", "2",
                                              self.server_addr,
                                              self.server_port]

    def tearDown(self):
        super(VCLCutThruTestCase, self).tearDown()

    def show_commands_at_teardown(self):
        self.logger.debug(self.vapi.cli("show session verbose 2"))

    def test_vcl_cut_thru_echo(self):
        """ run VCL cut thru echo test """

        self.cut_thru_test("vcl_test_server", self.server_args,
                           "vcl_test_client", self.client_echo_test_args)

    def test_vcl_cut_thru_uni_dir_nsock(self):
        """ run VCL cut thru uni-directional (multiple sockets) test """

        self.timeout = self.client_uni_dir_nsock_timeout
        self.cut_thru_test("vcl_test_server", self.server_args,
                           "vcl_test_client",
                           self.client_uni_dir_nsock_test_args)

    def test_vcl_cut_thru_bi_dir_nsock(self):
        """ run VCL cut thru bi-directional (multiple sockets) test """

        self.timeout = self.client_bi_dir_nsock_timeout
        self.cut_thru_test("vcl_test_server", self.server_args,
                           "vcl_test_client",
                           self.client_bi_dir_nsock_test_args)


class VCLThruHostStackEcho(VCLTestCase):
    """ VCL Thru Host Stack Echo """

    @classmethod
    def setUpClass(cls):
        super(VCLThruHostStackEcho, cls).setUpClass()

    @classmethod
    def tearDownClass(cls):
        super(VCLThruHostStackEcho, cls).tearDownClass()

    def setUp(self):
        super(VCLThruHostStackEcho, self).setUp()

        self.thru_host_stack_setup()
        self.client_bi_dir_nsock_timeout = 20
        self.client_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
                                              "-I", "2",
                                              self.loop0.local_ip4,
                                              self.server_port]
        self.client_echo_test_args = ["-E", self.echo_phrase, "-X",
                                      self.loop0.local_ip4,
                                      self.server_port]

    def tearDown(self):
        self.thru_host_stack_tear_down()
        super(VCLThruHostStackEcho, self).tearDown()

    def show_commands_at_teardown(self):
        self.logger.debug(self.vapi.cli("show app server"))
        self.logger.debug(self.vapi.cli("show session verbose"))


class VCLThruHostStackTLS(VCLTestCase):
    """ VCL Thru Host Stack TLS """

    @classmethod
    def setUpClass(cls):
        super(VCLThruHostStackTLS, cls).setUpClass()

    @classmethod
    def tearDownClass(cls):
        super(VCLThruHostStackTLS, cls).tearDownClass()

    def setUp(self):
        super(VCLThruHostStackTLS, self).setUp()

        self.thru_host_stack_setup()
        self.client_uni_dir_tls_timeout = 20
        self.server_tls_args = ["-L", self.server_port]
        self.client_uni_dir_tls_test_args = ["-N", "1000", "-U", "-X", "-L",
                                             self.loop0.local_ip4,
                                             self.server_port]

    def test_vcl_thru_host_stack_tls_uni_dir(self):
        """ run VCL thru host stack uni-directional TLS test """

        self.timeout = self.client_uni_dir_tls_timeout
        self.thru_host_stack_test("vcl_test_server", self.server_tls_args,
                                  "vcl_test_client",
                                  self.client_uni_dir_tls_test_args)

    def tearDown(self):
        self.thru_host_stack_tear_down()
        super(VCLThruHostStackTLS, self).tearDown()

    def show_commands_at_teardown(self):
        self.logger.debug(self.vapi.cli("show app server"))
        self.logger.debug(self.vapi.cli("show session verbose 2"))


class VCLThruHostStackBidirNsock(VCLTestCase):
    """ VCL Thru Host Stack Bidir Nsock """

    @classmethod
    def setUpClass(cls):
        super(VCLThruHostStackBidirNsock, cls).setUpClass()

    @classmethod
    def tearDownClass(cls):
        super(VCLThruHostStackBidirNsock, cls).tearDownClass()

    def setUp(self):
        super(VCLThruHostStackBidirNsock, self).setUp()

        self.thru_host_stack_setup()
        self.client_bi_dir_nsock_timeout = 20
        self.client_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
                                              "-I", "2",
                                              self.loop0.local_ip4,
                                              self.server_port]
        self.client_echo_test_args = ["-E", self.echo_phrase, "-X",
                                      self.loop0.local_ip4,
                                      self.server_port]

    def tearDown(self):
        self.thru_host_stack_tear_down()
        super(VCLThruHostStackBidirNsock, self).tearDown()

    def show_commands_at_teardown(self):
        self.logger.debug(self.vapi.cli("show session verbose 2"))

    def test_vcl_thru_host_stack_bi_dir_nsock(self):
        """ run VCL thru host stack bi-directional (multiple sockets) test """

        self.timeout = self.client_bi_dir_nsock_timeout
        self.thru_host_stack_test("vcl_test_server", self.server_args,
                                  "vcl_test_client",
                                  self.client_bi_dir_nsock_test_args)


class LDPThruHostStackBidirNsock(VCLTestCase):
    """ LDP Thru Host Stack Bidir Nsock """

    @classmethod
    def setUpClass(cls):
        super(LDPThruHostStackBidirNsock, cls).setUpClass()

    @classmethod
    def tearDownClass(cls):
        super(LDPThruHostStackBidirNsock, cls).tearDownClass()

    def setUp(self):
        super(LDPThruHostStackBidirNsock, self).setUp()

        self.thru_host_stack_setup()
        if self.vppDebug:
            self.client_bi_dir_nsock_timeout = 20
            self.client_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
                                                  # OUCH! Host Stack Bug?
                                                  # "-I", "2",
                                                  self.loop0.local_ip4,
                                                  self.server_port]
        else:
            self.client_bi_dir_nsock_timeout = 20
            self.client_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
                                                  # OUCH! Host Stack Bug?
                                                  # "-I", "2",
                                                  self.loop0.local_ip4,
                                                  self.server_port]

    def tearDown(self):
        self.thru_host_stack_tear_down()
        super(LDPThruHostStackBidirNsock, self).tearDown()

    def show_commands_at_teardown(self):
        self.logger.debug(self.vapi.cli("show session verbose 2"))

    def test_ldp_thru_host_stack_bi_dir_nsock(self):
        """ run LDP thru host stack bi-directional (multiple sockets) test """

        self.timeout = self.client_bi_dir_nsock_timeout
        self.thru_host_stack_test("sock_test_server", self.server_args,
                                  "sock_test_client",
                                  self.client_bi_dir_nsock_test_args)


class LDPThruHostStackNsock(VCLTestCase):
    """ LDP Thru Host Stack Nsock """

    @classmethod
    def setUpClass(cls):
        super(LDPThruHostStackNsock, cls).setUpClass()

    @classmethod
    def tearDownClass(cls):
        super(LDPThruHostStackNsock, cls).tearDownClass()

    def setUp(self):
        super(LDPThruHostStackNsock, self).setUp()

        self.thru_host_stack_setup()
        if self.vppDebug:
            self.client_uni_dir_nsock_timeout = 20
            self.numSockets = "2"
        else:
            self.client_uni_dir_nsock_timeout = 20
            self.numSockets = "5"

        self.client_uni_dir_nsock_test_args = ["-N", "1000", "-U", "-X",
                                               "-I", self.numSockets,
                                               self.loop0.local_ip4,
                                               self.server_port]

    def tearDown(self):
        self.thru_host_stack_tear_down()
        super(LDPThruHostStackNsock, self).tearDown()

    def test_ldp_thru_host_stack_uni_dir_nsock(self):
        """ run LDP thru host stack uni-directional (multiple sockets) test """

        self.timeout = self.client_uni_dir_nsock_timeout
        self.thru_host_stack_test("sock_test_server", self.server_args,
                                  "sock_test_client",
                                  self.client_uni_dir_nsock_test_args)


class VCLThruHostStackNsock(VCLTestCase):
    """ VCL Thru Host Stack Nsock """

    @classmethod
    def setUpClass(cls):
        super(VCLThruHostStackNsock, cls).setUpClass()

    @classmethod
    def tearDownClass(cls):
        super(VCLThruHostStackNsock, cls).tearDownClass()

    def setUp(self):
        super(VCLThruHostStackNsock, self).setUp()

        self.thru_host_stack_setup()
        if self.vppDebug:
            self.client_uni_dir_nsock_timeout = 20
            self.numSockets = "2"
        else:
            self.client_uni_dir_nsock_timeout = 20
            self.numSockets = "5"

        self.client_uni_dir_nsock_test_args = ["-N", "1000", "-U", "-X",
                                               "-I", self.numSockets,
                                               self.loop0.local_ip4,
                                               self.server_port]

    def tearDown(self):
        self.thru_host_stack_tear_down()
        super(VCLThruHostStackNsock, self).tearDown()

    def test_vcl_thru_host_stack_uni_dir_nsock(self):
        """ run VCL thru host stack uni-directional (multiple sockets) test """

        self.timeout = self.client_uni_dir_nsock_timeout
        self.thru_host_stack_test("vcl_test_server", self.server_args,
                                  "vcl_test_client",
                                  self.client_uni_dir_nsock_test_args)


class LDPThruHostStackIperf(VCLTestCase):
    """ LDP Thru Host Stack Iperf  """

    @classmethod
    def setUpClass(cls):
        super(LDPThruHostStackIperf, cls).setUpClass()

    @classmethod
    def tearDownClass(cls):
        super(LDPThruHostStackIperf, cls).tearDownClass()

    def setUp(self):
        super(LDPThruHostStackIperf, self).setUp()

        self.thru_host_stack_setup()
        self.client_iperf3_timeout = 20
        self.client_iperf3_args = ["-V4d", "-t 2", "-c", self.loop0.local_ip4]
        self.server_iperf3_args = ["-V4d", "-s"]

    def tearDown(self):
        self.thru_host_stack_tear_down()
        super(LDPThruHostStackIperf, self).tearDown()

    def show_commands_at_teardown(self):
        self.logger.debug(self.vapi.cli("show session verbose 2"))

    @unittest.skipUnless(_have_iperf3, "'%s' not found, Skipping.")
    def test_ldp_thru_host_stack_iperf3(self):
        """ run LDP thru host stack iperf3 test """

        self.timeout = self.client_iperf3_timeout
        self.thru_host_stack_test(iperf3, self.server_iperf3_args,
                                  iperf3, self.client_iperf3_args)


class LDPThruHostStackIperfUdp(VCLTestCase):
    """ LDP Thru Host Stack Iperf UDP """

    @classmethod
    def setUpClass(cls):
        super(LDPThruHostStackIperfUdp, cls).setUpClass()

    @classmethod
    def tearDownClass(cls):
        super(LDPThruHostStackIperfUdp, cls).tearDownClass()

    def setUp(self):
        super(LDPThruHostStackIperfUdp, self).setUp()

        self.thru_host_stack_setup()
        self.client_iperf3_timeout = 20
        self.client_iperf3_args = ["-V4d", "-t 2", "-u", "-l 1400",
                                   "-c", self.loop0.local_ip4]
        self.server_iperf3_args = ["-V4d", "-s"]

    def tearDown(self):
        self.thru_host_stack_tear_down()
        super(LDPThruHostStackIperfUdp, self).tearDown()

    def show_commands_at_teardown(self):
        self.logger.debug(self.vapi.cli("show session verbose 2"))

    @unittest.skipUnless(_have_iperf3, "'%s' not found, Skipping.")
    def test_ldp_thru_host_stack_iperf3_udp(self):
        """ run LDP thru host stack iperf3 UDP test """

        self.timeout = self.client_iperf3_timeout
        self.thru_host_stack_test(iperf3, self.server_iperf3_args,
                                  iperf3, self.client_iperf3_args)


class LDPIpv6CutThruTestCase(VCLTestCase):
    """ LDP IPv6 Cut Thru Tests """

    @classmethod
    def setUpClass(cls):
        super(LDPIpv6CutThruTestCase, cls).setUpClass()

    @classmethod
    def tearDownClass(cls):
        super(LDPIpv6CutThruTestCase, cls).tearDownClass()

    def setUp(self):
        super(LDPIpv6CutThruTestCase, self).setUp()

        self.cut_thru_setup()
        self.client_iperf3_timeout = 20
        self.client_uni_dir_nsock_timeout = 20
        self.client_bi_dir_nsock_timeout = 20
        self.client_ipv6_echo_test_args = ["-6", "-E", self.echo_phrase, "-X",
                                           self.server_ipv6_addr,
                                           self.server_port]
        self.client_ipv6_iperf3_args = ["-V6d", "-t 2", "-c",
                                        self.server_ipv6_addr]
        self.server_ipv6_iperf3_args = ["-V6d", "-s"]
        self.client_ipv6_uni_dir_nsock_test_args = ["-N", "1000", "-U", "-X",
                                                    "-6",
                                                    "-I", "2",
                                                    self.server_ipv6_addr,
                                                    self.server_port]
        self.client_ipv6_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
                                                   "-6",
                                                   "-I", "2",
                                                   self.server_ipv6_addr,
                                                   self.server_port]

    def tearDown(self):
        super(LDPIpv6CutThruTestCase, self).tearDown()
        self.cut_thru_tear_down()

    def test_ldp_ipv6_cut_thru_echo(self):
        """ run LDP IPv6 cut thru echo test """

        self.cut_thru_test("sock_test_server",
                           self.server_ipv6_args,
                           "sock_test_client",
                           self.client_ipv6_echo_test_args)

    @unittest.skipUnless(_have_iperf3, "'%s' not found, Skipping.")
    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    def test_ldp_ipv6_cut_thru_iperf3(self):
        """ run LDP IPv6 cut thru iperf3 test """

        self.timeout = self.client_iperf3_timeout
        self.cut_thru_test(iperf3, self.server_ipv6_iperf3_args,
                           iperf3, self.client_ipv6_iperf3_args)

    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    def test_ldp_ipv6_cut_thru_uni_dir_nsock(self):
        """ run LDP IPv6 cut thru uni-directional (multiple sockets) test """

        self.timeout = self.client_uni_dir_nsock_timeout
        self.cut_thru_test("sock_test_server", self.server_ipv6_args,
                           "sock_test_client",
                           self.client_ipv6_uni_dir_nsock_test_args)

    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    @unittest.skip("sock test apps need to be improved")
    def test_ldp_ipv6_cut_thru_bi_dir_nsock(self):
        """ run LDP IPv6 cut thru bi-directional (multiple sockets) test """

        self.timeout = self.client_bi_dir_nsock_timeout
        self.cut_thru_test("sock_test_server", self.server_ipv6_args,
                           "sock_test_client",
                           self.client_ipv6_bi_dir_nsock_test_args)


class VCLIpv6CutThruTestCase(VCLTestCase):
    """ VCL IPv6 Cut Thru Tests """

    @classmethod
    def setUpClass(cls):
        super(VCLIpv6CutThruTestCase, cls).setUpClass()

    @classmethod
    def tearDownClass(cls):
        super(VCLIpv6CutThruTestCase, cls).tearDownClass()

    def setUp(self):
        super(VCLIpv6CutThruTestCase, self).setUp()

        self.cut_thru_setup()
        self.client_uni_dir_nsock_timeout = 20
        self.client_bi_dir_nsock_timeout = 20
        self.client_ipv6_echo_test_args = ["-6", "-E", self.echo_phrase, "-X",
                                           self.server_ipv6_addr,
                                           self.server_port]
        self.client_ipv6_uni_dir_nsock_test_args = ["-N", "1000", "-U", "-X",
                                                    "-6",
                                                    "-I", "2",
                                                    self.server_ipv6_addr,
                                                    self.server_port]
        self.client_ipv6_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
                                                   "-6",
                                                   "-I", "2",
                                                   self.server_ipv6_addr,
                                                   self.server_port]

    def tearDown(self):
        super(VCLIpv6CutThruTestCase, self).tearDown()
        self.cut_thru_tear_down()

    def test_vcl_ipv6_cut_thru_echo(self):
        """ run VCL IPv6 cut thru echo test """

        self.cut_thru_test("vcl_test_server",
                           self.server_ipv6_args,
                           "vcl_test_client",
                           self.client_ipv6_echo_test_args)

    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    def test_vcl_ipv6_cut_thru_uni_dir_nsock(self):
        """ run VCL IPv6 cut thru uni-directional (multiple sockets) test """

        self.timeout = self.client_uni_dir_nsock_timeout
        self.cut_thru_test("vcl_test_server", self.server_ipv6_args,
                           "vcl_test_client",
                           self.client_ipv6_uni_dir_nsock_test_args)

    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    def test_vcl_ipv6_cut_thru_bi_dir_nsock(self):
        """ run VCL IPv6 cut thru bi-directional (multiple sockets) test """

        self.timeout = self.client_bi_dir_nsock_timeout
        self.cut_thru_test("vcl_test_server", self.server_ipv6_args,
                           "vcl_test_client",
                           self.client_ipv6_bi_dir_nsock_test_args)


class VCLIpv6ThruHostStackEcho(VCLTestCase):
    """ VCL IPv6 Thru Host Stack Echo """

    @classmethod
    def setUpClass(cls):
        super(VCLIpv6ThruHostStackEcho, cls).setUpClass()

    @classmethod
    def tearDownClass(cls):
        super(VCLIpv6ThruHostStackEcho, cls).tearDownClass()

    def setUp(self):
        super(VCLIpv6ThruHostStackEcho, self).setUp()

        self.thru_host_stack_ipv6_setup()
        self.client_ipv6_echo_test_args = ["-6", "-E", self.echo_phrase, "-X",
                                           self.loop0.local_ip6,
                                           self.server_port]

    def tearDown(self):
        self.thru_host_stack_ipv6_tear_down()
        super(VCLIpv6ThruHostStackEcho, self).tearDown()

    def test_vcl_ipv6_thru_host_stack_echo(self):
        """ run VCL IPv6 thru host stack echo test """

        self.thru_host_stack_test("vcl_test_server",
                                  self.server_ipv6_args,
                                  "vcl_test_client",
                                  self.client_ipv6_echo_test_args)


if __name__ == '__main__':
    unittest.main(testRunner=VppTestRunner)