aboutsummaryrefslogtreecommitdiffstats
path: root/test/test_ipsec_spd_fp_output.py
blob: 645939c98a9d89b3bb7da2267c3461fef40c1615 (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
import socket
import unittest
import ipaddress

from util import ppp
from framework import VppTestRunner
from template_ipsec import IPSecIPv4Fwd


class SpdFastPathOutbound(IPSecIPv4Fwd):
    # Override setUpConstants to enable outbound fast path in config
    @classmethod
    def setUpConstants(cls):
        super(SpdFastPathOutbound, cls).setUpConstants()
        cls.vpp_cmdline.extend(["ipsec", "{", "ipv4-outbound-spd-fast-path on", "}"])
        cls.logger.info("VPP modified cmdline is %s" % " ".join(cls.vpp_cmdline))


class IPSec4SpdTestCaseAdd(SpdFastPathOutbound):
    """ IPSec/IPv4 outbound: Policy mode test case with fast path \
        (add rule)"""

    def test_ipsec_spd_outbound_add(self):
        # In this test case, packets in IPv4 FWD path are configured
        # to go through IPSec outbound SPD policy lookup.
        # 2 SPD rules (1 HIGH and 1 LOW) are added.
        # High priority rule action is set to BYPASS.
        # Low priority rule action is set to DISCARD.
        # Traffic sent on pg0 interface should match high priority
        # rule and should be sent out on pg1 interface.
        self.create_interfaces(2)
        pkt_count = 5
        s_port_s = 1111
        s_port_e = 1111
        d_port_s = 2222
        d_port_e = 2222
        self.spd_create_and_intf_add(1, [self.pg1])
        policy_0 = self.spd_add_rem_policy(  # outbound, priority 10
            1,
            self.pg0,
            self.pg1,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=10,
            policy_type="bypass",
            local_port_start=s_port_s,
            local_port_stop=s_port_e,
            remote_port_start=d_port_s,
            remote_port_stop=d_port_e,
        )
        policy_1 = self.spd_add_rem_policy(  # outbound, priority 5
            1,
            self.pg0,
            self.pg1,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=5,
            policy_type="discard",
            local_port_start=s_port_s,
            local_port_stop=s_port_e,
            remote_port_start=d_port_s,
            remote_port_stop=d_port_e,
        )

        # create the packet stream
        packets = self.create_stream(self.pg0, self.pg1, pkt_count, s_port_s, d_port_s)
        # add the stream to the source interface + enable capture
        self.pg0.add_stream(packets)
        self.pg0.enable_capture()
        self.pg1.enable_capture()
        # start the packet generator
        self.pg_start()
        # get capture
        capture = self.pg1.get_capture()
        for packet in capture:
            try:
                self.logger.debug(ppp("SPD - Got packet:", packet))
            except Exception:
                self.logger.error(ppp("Unexpected or invalid packet:", packet))
                raise
        self.logger.debug("SPD: Num packets: %s", len(capture.res))

        # assert nothing captured on pg0
        self.pg0.assert_nothing_captured()
        # verify captured packets
        self.verify_capture(self.pg0, self.pg1, capture)
        # verify all policies matched the expected number of times
        self.verify_policy_match(pkt_count, policy_0)
        self.verify_policy_match(0, policy_1)


class IPSec4SpdTestCaseAddPortRange(SpdFastPathOutbound):
    """ IPSec/IPv4 outbound: Policy mode test case with fast path \
        (add all ips port range rule)"""

    def test_ipsec_spd_outbound_add(self):
        # In this test case, packets in IPv4 FWD path are configured
        # to go through IPSec outbound SPD policy lookup.
        # 2 SPD rules (1 HIGH and 1 LOW) are added.
        # High priority rule action is set to BYPASS.
        # Low priority rule action is set to DISCARD.
        # Traffic sent on pg0 interface should match high priority
        # rule and should be sent out on pg1 interface.
        self.create_interfaces(2)
        pkt_count = 5
        s_port_s = 1000
        s_port_e = 2023
        d_port_s = 5000
        d_port_e = 6023
        self.spd_create_and_intf_add(1, [self.pg1])
        policy_0 = self.spd_add_rem_policy(  # outbound, priority 10
            1,
            self.pg0,
            self.pg1,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=10,
            policy_type="bypass",
            all_ips=True,
            local_port_start=s_port_s,
            local_port_stop=s_port_e,
            remote_port_start=d_port_s,
            remote_port_stop=d_port_e,
        )
        policy_1 = self.spd_add_rem_policy(  # outbound, priority 5
            1,
            self.pg0,
            self.pg1,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=5,
            policy_type="discard",
            all_ips=True,
            local_port_start=s_port_s,
            local_port_stop=s_port_e,
            remote_port_start=d_port_s,
            remote_port_stop=d_port_e,
        )

        # create the packet stream
        packets = self.create_stream(self.pg0, self.pg1, pkt_count, 1333, 5444)
        # add the stream to the source interface + enable capture
        self.pg0.add_stream(packets)
        self.pg0.enable_capture()
        self.pg1.enable_capture()
        # start the packet generator
        self.pg_start()
        # get capture
        capture = self.pg1.get_capture()
        for packet in capture:
            try:
                self.logger.debug(ppp("SPD - Got packet:", packet))
            except Exception:
                self.logger.error(ppp("Unexpected or invalid packet:", packet))
                raise
        self.logger.debug("SPD: Num packets: %s", len(capture.res))

        # assert nothing captured on pg0
        self.pg0.assert_nothing_captured()
        # verify captured packets
        self.verify_capture(self.pg0, self.pg1, capture)
        # verify all policies matched the expected number of times
        self.verify_policy_match(pkt_count, policy_0)
        self.verify_policy_match(0, policy_1)


class IPSec4SpdTestCaseAddIPRange(SpdFastPathOutbound):
    """ IPSec/IPv4 outbound: Policy mode test case with fast path \
        (add  ips  range with any port rule)"""

    def test_ipsec_spd_outbound_add(self):
        # In this test case, packets in IPv4 FWD path are configured
        # to go through IPSec outbound SPD policy lookup.
        # 2 SPD rules (1 HIGH and 1 LOW) are added.
        # High priority rule action is set to BYPASS.
        # Low priority rule action is set to DISCARD.
        # Traffic sent on pg0 interface should match high priority
        # rule and should be sent out on pg1 interface.
        self.create_interfaces(2)
        pkt_count = 5
        s_ip_s = ipaddress.ip_address(self.pg0.remote_ip4)
        s_ip_e = ipaddress.ip_address(int(s_ip_s) + 5)
        d_ip_s = ipaddress.ip_address(self.pg1.remote_ip4)
        d_ip_e = ipaddress.ip_address(int(d_ip_s) + 0)
        self.spd_create_and_intf_add(1, [self.pg1])
        policy_0 = self.spd_add_rem_policy(  # outbound, priority 10
            1,
            self.pg0,
            self.pg1,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=10,
            policy_type="bypass",
            ip_range=True,
            local_ip_start=s_ip_s,
            local_ip_stop=s_ip_e,
            remote_ip_start=d_ip_s,
            remote_ip_stop=d_ip_e,
        )
        policy_1 = self.spd_add_rem_policy(  # outbound, priority 5
            1,
            self.pg0,
            self.pg1,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=5,
            policy_type="discard",
            ip_range=True,
            local_ip_start=s_ip_s,
            local_ip_stop=s_ip_e,
            remote_ip_start=d_ip_s,
            remote_ip_stop=d_ip_e,
        )

        # create the packet stream
        packets = self.create_stream(self.pg0, self.pg1, pkt_count)
        # add the stream to the source interface + enable capture
        self.pg0.add_stream(packets)
        self.pg0.enable_capture()
        self.pg1.enable_capture()
        # start the packet generator
        self.pg_start()
        # get capture
        capture = self.pg1.get_capture()
        for packet in capture:
            try:
                self.logger.debug(ppp("SPD - Got packet:", packet))
            except Exception:
                self.logger.error(ppp("Unexpected or invalid packet:", packet))
                raise
        self.logger.debug("SPD: Num packets: %s", len(capture.res))

        # assert nothing captured on pg0
        self.pg0.assert_nothing_captured()
        # verify captured packets
        self.verify_capture(self.pg0, self.pg1, capture)
        # verify all policies matched the expected number of times
        self.verify_policy_match(pkt_count, policy_0)
        self.verify_policy_match(0, policy_1)


class IPSec4SpdTestCaseAddIPAndPortRange(SpdFastPathOutbound):
    """ IPSec/IPv4 outbound: Policy mode test case with fast path \
        (add all ips  range rule)"""

    def test_ipsec_spd_outbound_add(self):
        # In this test case, packets in IPv4 FWD path are configured
        # to go through IPSec outbound SPD policy lookup.
        # 2 SPD rules (1 HIGH and 1 LOW) are added.
        # High priority rule action is set to BYPASS.
        # Low priority rule action is set to DISCARD.
        # Traffic sent on pg0 interface should match high priority
        # rule and should be sent out on pg1 interface.
        # in this test we define ranges of ports and ip addresses.
        self.create_interfaces(2)
        pkt_count = 5
        s_port_s = 1000
        s_port_e = 1000 + 1023
        d_port_s = 5000
        d_port_e = 5000 + 1023

        s_ip_s = ipaddress.ip_address(
            int(ipaddress.ip_address(self.pg0.remote_ip4)) - 24
        )
        s_ip_e = ipaddress.ip_address(int(s_ip_s) + 255)
        d_ip_s = ipaddress.ip_address(self.pg1.remote_ip4)
        d_ip_e = ipaddress.ip_address(int(d_ip_s) + 255)
        self.spd_create_and_intf_add(1, [self.pg1])
        policy_0 = self.spd_add_rem_policy(  # outbound, priority 10
            1,
            self.pg0,
            self.pg1,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=10,
            policy_type="bypass",
            ip_range=True,
            local_ip_start=s_ip_s,
            local_ip_stop=s_ip_e,
            remote_ip_start=d_ip_s,
            remote_ip_stop=d_ip_e,
            local_port_start=s_port_s,
            local_port_stop=s_port_e,
            remote_port_start=d_port_s,
            remote_port_stop=d_port_e,
        )
        policy_1 = self.spd_add_rem_policy(  # outbound, priority 5
            1,
            self.pg0,
            self.pg1,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=5,
            policy_type="discard",
            ip_range=True,
            local_ip_start=s_ip_s,
            local_ip_stop=s_ip_e,
            remote_ip_start=d_ip_s,
            remote_ip_stop=d_ip_e,
            local_port_start=s_port_s,
            local_port_stop=s_port_e,
            remote_port_start=d_port_s,
            remote_port_stop=d_port_e,
        )

        # create the packet stream
        packets = self.create_stream(self.pg0, self.pg1, pkt_count)
        # add the stream to the source interface + enable capture
        self.pg0.add_stream(packets)
        self.pg0.enable_capture()
        self.pg1.enable_capture()
        # start the packet generator
        self.pg_start()
        # get capture
        capture = self.pg1.get_capture()
        for packet in capture:
            try:
                self.logger.debug(ppp("SPD - Got packet:", packet))
            except Exception:
                self.logger.error(ppp("Unexpected or invalid packet:", packet))
                raise
        self.logger.debug("SPD: Num packets: %s", len(capture.res))

        # assert nothing captured on pg0
        self.pg0.assert_nothing_captured()
        # verify captured packets
        self.verify_capture(self.pg0, self.pg1, capture)
        # verify all policies matched the expected number of times
        self.verify_policy_match(pkt_count, policy_0)
        self.verify_policy_match(0, policy_1)


class IPSec4SpdTestCaseAddAll(SpdFastPathOutbound):
    """ IPSec/IPv4 outbound: Policy mode test case with fast path \
        (add all ips ports rule)"""

    def test_ipsec_spd_outbound_add(self):
        # In this test case, packets in IPv4 FWD path are configured
        # to go through IPSec outbound SPD policy lookup.
        # 2 SPD rules (1 HIGH and 1 LOW) are added.
        # Low priority rule action is set to BYPASS all ips.
        # High priority rule action is set to DISCARD all ips.
        # Traffic sent on pg0 interface when LOW priority rule is added,
        # expect the packet is being sent out to pg1. Then HIGH priority
        # rule is added and send the same traffic to pg0, this time expect
        # the traffic is dropped.
        self.create_interfaces(2)
        pkt_count = 5
        self.spd_create_and_intf_add(1, [self.pg1])
        policy_0 = self.spd_add_rem_policy(  # outbound, priority 10
            1,
            self.pg0,
            self.pg1,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=10,
            policy_type="bypass",
            all_ips=True,
        )

        # create the packet stream
        packets = self.create_stream(self.pg0, self.pg1, pkt_count)
        # add the stream to the source interface + enable capture
        self.pg0.add_stream(packets)
        self.pg0.enable_capture()
        self.pg1.enable_capture()
        # start the packet generator
        self.pg_start()
        # get capture
        capture = self.pg1.get_capture()
        for packet in capture:
            try:
                self.logger.debug(ppp("SPD - Got packet:", packet))
            except Exception:
                self.logger.error(ppp("Unexpected or invalid packet:", packet))
                raise
        self.logger.debug("SPD: Num packets: %s", len(capture.res))

        # assert nothing captured on pg0
        self.pg0.assert_nothing_captured()
        # verify captured packets
        self.verify_capture(self.pg0, self.pg1, capture)
        # verify all policies matched the expected number of times
        self.verify_policy_match(pkt_count, policy_0)

        policy_1 = self.spd_add_rem_policy(  # outbound, priority 20
            1,
            self.pg0,
            self.pg1,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=20,
            policy_type="discard",
            all_ips=True,
        )

        # create the packet stream
        packets = self.create_stream(self.pg0, self.pg1, pkt_count)
        # add the stream to the source interface + enable capture
        self.pg0.add_stream(packets)
        self.pg0.enable_capture()
        self.pg1.enable_capture()
        # start the packet generator
        self.pg_start()
        # assert nothing captured on pg0 and pg1
        self.pg0.assert_nothing_captured()
        self.pg1.assert_nothing_captured()


class IPSec4SpdTestCaseRemove(SpdFastPathOutbound):
    """ IPSec/IPv4 outbound: Policy mode test case with fast path \
        (remove rule)"""

    def test_ipsec_spd_outbound_remove(self):
        # In this test case, packets in IPv4 FWD path are configured
        # to go through IPSec outbound SPD policy lookup.
        # 2 SPD rules (1 HIGH and 1 LOW) are added.
        # High priority rule action is set to BYPASS.
        # Low priority rule action is set to DISCARD.
        # High priority rule is then removed.
        # Traffic sent on pg0 interface should match low priority
        # rule and should be discarded after SPD lookup.
        self.create_interfaces(2)
        pkt_count = 5
        self.spd_create_and_intf_add(1, [self.pg1])
        policy_0 = self.spd_add_rem_policy(  # outbound, priority 10
            1,
            self.pg0,
            self.pg1,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=10,
            policy_type="bypass",
        )
        policy_1 = self.spd_add_rem_policy(  # outbound, priority 5
            1,
            self.pg0,
            self.pg1,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=5,
            policy_type="discard",
        )

        # create the packet stream
        packets = self.create_stream(self.pg0, self.pg1, pkt_count)
        # add the stream to the source interface + enable capture
        self.pg0.add_stream(packets)
        self.pg0.enable_capture()
        self.pg1.enable_capture()
        # start the packet generator
        self.pg_start()
        # get capture
        capture = self.pg1.get_capture()
        for packet in capture:
            try:
                self.logger.debug(ppp("SPD - Got packet:", packet))
            except Exception:
                self.logger.error(ppp("Unexpected or invalid packet:", packet))
                raise

        # assert nothing captured on pg0
        self.pg0.assert_nothing_captured()
        # verify capture on pg1
        self.logger.debug("SPD: Num packets: %s", len(capture.res))
        self.verify_capture(self.pg0, self.pg1, capture)
        # verify all policies matched the expected number of times
        self.verify_policy_match(pkt_count, policy_0)
        self.verify_policy_match(0, policy_1)
        # check policy in SPD has been cached after traffic
        # matched BYPASS rule in SPD
        # now remove the bypass rule
        self.spd_add_rem_policy(  # outbound, priority 10
            1,
            self.pg0,
            self.pg1,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=10,
            policy_type="bypass",
            remove=True,
        )

        # resend the same packets
        self.pg0.add_stream(packets)
        self.pg0.enable_capture()  # flush the old captures
        self.pg1.enable_capture()
        self.pg_start()
        # assert nothing captured on pg0
        self.pg0.assert_nothing_captured()
        # all packets will be dropped by SPD rule
        self.pg1.assert_nothing_captured()
        # verify all policies matched the expected number of times
        self.verify_policy_match(pkt_count, policy_0)
        self.verify_policy_match(pkt_count, policy_1)


class IPSec4SpdTestCaseReadd(SpdFastPathOutbound):
    """ IPSec/IPv4 outbound: Policy mode test case with fast path \
        (add, remove, re-add)"""

    def test_ipsec_spd_outbound_readd(self):
        # In this test case, packets in IPv4 FWD path are configured
        # to go through IPSec outbound SPD policy lookup.
        # 2 SPD rules (1 HIGH and 1 LOW) are added.
        # High priority rule action is set to BYPASS.
        # Low priority rule action is set to DISCARD.
        # Traffic sent on pg0 interface should match high priority
        # rule and should be sent out on pg1 interface.
        # High priority rule is then removed.
        # Traffic sent on pg0 interface should match low priority
        # rule and should be discarded after SPD lookup.
        # Readd high priority rule.
        # Traffic sent on pg0 interface should match high priority
        # rule and should be sent out on pg1 interface.
        self.create_interfaces(2)
        pkt_count = 5
        self.spd_create_and_intf_add(1, [self.pg1])
        policy_0 = self.spd_add_rem_policy(  # outbound, priority 10
            1,
            self.pg0,
            self.pg1,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=10,
            policy_type="bypass",
        )
        policy_1 = self.spd_add_rem_policy(  # outbound, priority 5
            1,
            self.pg0,
            self.pg1,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=5,
            policy_type="discard",
        )

        # create the packet stream
        packets = self.create_stream(self.pg0, self.pg1, pkt_count)
        # add the stream to the source interface + enable capture
        self.pg0.add_stream(packets)
        self.pg0.enable_capture()
        self.pg1.enable_capture()
        # start the packet generator
        self.pg_start()
        # get capture
        capture = self.pg1.get_capture()
        for packet in capture:
            try:
                self.logger.debug(ppp("SPD - Got packet:", packet))
            except Exception:
                self.logger.error(ppp("Unexpected or invalid packet:", packet))
                raise
        self.logger.debug("SPD: Num packets: %s", len(capture.res))

        # assert nothing captured on pg0
        self.pg0.assert_nothing_captured()
        # verify capture on pg1
        self.verify_capture(self.pg0, self.pg1, capture)
        # verify all policies matched the expected number of times
        self.verify_policy_match(pkt_count, policy_0)
        self.verify_policy_match(0, policy_1)
        # check policy in SPD has been cached after traffic
        # matched BYPASS rule in SPD

        # now remove the bypass rule, leaving only the discard rule
        self.spd_add_rem_policy(  # outbound, priority 10
            1,
            self.pg0,
            self.pg1,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=10,
            policy_type="bypass",
            remove=True,
        )

        # resend the same packets
        self.pg0.add_stream(packets)
        self.pg0.enable_capture()  # flush the old captures
        self.pg1.enable_capture()
        self.pg_start()

        # assert nothing captured on pg0
        self.pg0.assert_nothing_captured()
        # all packets will be dropped by SPD rule
        self.pg1.assert_nothing_captured()
        # verify all policies matched the expected number of times
        self.verify_policy_match(pkt_count, policy_0)
        self.verify_policy_match(pkt_count, policy_1)

        # now readd the bypass rule
        policy_0 = self.spd_add_rem_policy(  # outbound, priority 10
            1,
            self.pg0,
            self.pg1,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=10,
            policy_type="bypass",
        )

        # resend the same packets
        self.pg0.add_stream(packets)
        self.pg0.enable_capture()  # flush the old captures
        self.pg1.enable_capture()
        self.pg_start()

        # get capture
        capture = self.pg1.get_capture(pkt_count)
        for packet in capture:
            try:
                self.logger.debug(ppp("SPD - Got packet:", packet))
            except Exception:
                self.logger.error(ppp("Unexpected or invalid packet:", packet))
                raise
        self.logger.debug("SPD: Num packets: %s", len(capture.res))

        # assert nothing captured on pg0
        self.pg0.assert_nothing_captured()
        # verify captured packets
        self.verify_capture(self.pg0, self.pg1, capture)
        # verify all policies matched the expected number of times
        self.verify_policy_match(pkt_count, policy_0)
        self.verify_policy_match(pkt_count, policy_1)


class IPSec4SpdTestCaseMultiple(SpdFastPathOutbound):
    """ IPSec/IPv4 outbound: Policy mode test case with fast path \
        (multiple interfaces, multiple rules)"""

    def test_ipsec_spd_outbound_multiple(self):
        # In this test case, packets in IPv4 FWD path are configured to go
        # through IPSec outbound SPD policy lookup.
        # Multiples rules on multiple interfaces are tested at the same time.
        # 3x interfaces are configured, binding the same SPD to each.
        # Each interface has 2 SPD rules (1 BYPASS and 1 DISCARD).
        # On pg0 & pg1, the BYPASS rule is HIGH priority
        # On pg2, the DISCARD rule is HIGH priority
        # Traffic should be received on pg0 & pg1 and dropped on pg2.
        self.create_interfaces(3)
        pkt_count = 5
        # bind SPD to all interfaces
        self.spd_create_and_intf_add(1, self.pg_interfaces)
        # add rules on all interfaces
        policy_01 = self.spd_add_rem_policy(  # outbound, priority 10
            1,
            self.pg0,
            self.pg1,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=10,
            policy_type="bypass",
        )
        policy_02 = self.spd_add_rem_policy(  # outbound, priority 5
            1,
            self.pg0,
            self.pg1,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=5,
            policy_type="discard",
        )

        policy_11 = self.spd_add_rem_policy(  # outbound, priority 10
            1,
            self.pg1,
            self.pg2,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=10,
            policy_type="bypass",
        )
        policy_12 = self.spd_add_rem_policy(  # outbound, priority 5
            1,
            self.pg1,
            self.pg2,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=5,
            policy_type="discard",
        )

        policy_21 = self.spd_add_rem_policy(  # outbound, priority 5
            1,
            self.pg2,
            self.pg0,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=5,
            policy_type="bypass",
        )
        policy_22 = self.spd_add_rem_policy(  # outbound, priority 10
            1,
            self.pg2,
            self.pg0,
            socket.IPPROTO_UDP,
            is_out=1,
            priority=10,
            policy_type="discard",
        )

        # interfaces bound to an SPD, will by default drop inbound
        # traffic with no matching policies. add catch-all inbound
        # bypass rule to SPD:
        self.spd_add_rem_policy(  # inbound, all interfaces
            1,
            None,
            None,
            socket.IPPROTO_UDP,
            is_out=0,
            priority=10,
            policy_type="bypass",
            all_ips=True,
        )

        # create the packet streams
        packets0 = self.create_stream(self.pg0, self.pg1, pkt_count)
        packets1 = self.create_stream(self.pg1, self.pg2, pkt_count)
        packets2 = self.create_stream(self.pg2, self.pg0, pkt_count)
        # add the streams to the source interfaces
        self.pg0.add_stream(packets0)
        self.pg1.add_stream(packets1)
        self.pg2.add_stream(packets2)
        # enable capture on all interfaces
        for pg in self.pg_interfaces:
            pg.enable_capture()
        # start the packet generator
        self.pg_start()

        # get captures
        if_caps = []
        for pg in [self.pg1, self.pg2]:  # we are expecting captures on pg1/pg2
            if_caps.append(pg.get_capture())
            for packet in if_caps[-1]:
                try:
                    self.logger.debug(ppp("SPD - Got packet:", packet))
                except Exception:
                    self.logger.error(ppp("Unexpected or invalid packet:", packet))
                    raise
        self.logger.debug("SPD: Num packets: %s", len(if_caps[0].res))
        self.logger.debug("SPD: Num packets: %s", len(if_caps[1].res))

        # verify captures that matched BYPASS rule
        self.verify_capture(self.pg0, self.pg1, if_caps[0])
        self.verify_capture(self.pg1, self.pg2, if_caps[1])
        # verify that traffic to pg0 matched DISCARD rule and was dropped
        self.pg0.assert_nothing_captured()
        # verify all packets that were expected to match rules, matched
        # pg0 -> pg1
        self.verify_policy_match(pkt_count, policy_01)
        self.verify_policy_match(0, policy_02)
        # pg1 -> pg2
        self.verify_policy_match(pkt_count, policy_11)
        self.verify_policy_match(0, policy_12)
        # pg2 -> pg0
        self.verify_policy_match(0, policy_21)
        self.verify_policy_match(pkt_count, policy_22)


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