summaryrefslogtreecommitdiffstats
path: root/test/test_ipsec_tun_if_esp.py
blob: 5ef0bdbb8c67bd76fb4780d07cf804dc59f9e0bb (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
import unittest
import socket
import copy

from scapy.layers.ipsec import ESP
from scapy.layers.l2 import Ether, Raw, GRE
from scapy.layers.inet import IP, UDP
from framework import VppTestRunner, is_skip_aarch64_set, is_platform_aarch64
from template_ipsec import TemplateIpsec, IpsecTun4Tests, IpsecTun6Tests, \
    IpsecTun4, IpsecTun6,  IpsecTcpTests,  config_tun_params
from vpp_ipsec_tun_interface import VppIpsecTunInterface, \
    VppIpsecGRETunInterface
from vpp_ip_route import VppIpRoute, VppRoutePath, DpoProto
from vpp_ipsec import VppIpsecSA
from vpp_l2 import VppBridgeDomain, VppBridgeDomainPort
from util import ppp
from vpp_papi import VppEnum


class TemplateIpsec4TunIfEsp(TemplateIpsec):
    """ IPsec tunnel interface tests """

    encryption_type = ESP

    @classmethod
    def setUpClass(cls):
        super(TemplateIpsec4TunIfEsp, cls).setUpClass()

    @classmethod
    def tearDownClass(cls):
        super(TemplateIpsec4TunIfEsp, cls).tearDownClass()

    def setUp(self):
        super(TemplateIpsec4TunIfEsp, self).setUp()

        self.tun_if = self.pg0

        p = self.ipv4_params

        p.tun_if = VppIpsecTunInterface(self, self.pg0, p.vpp_tun_spi,
                                        p.scapy_tun_spi, p.crypt_algo_vpp_id,
                                        p.crypt_key, p.crypt_key,
                                        p.auth_algo_vpp_id, p.auth_key,
                                        p.auth_key)
        p.tun_if.add_vpp_config()
        p.tun_if.admin_up()
        p.tun_if.config_ip4()
        p.tun_if.config_ip6()

        r = VppIpRoute(self, p.remote_tun_if_host, 32,
                       [VppRoutePath(p.tun_if.remote_ip4,
                                     0xffffffff)])
        r.add_vpp_config()
        r = VppIpRoute(self, p.remote_tun_if_host6, 128,
                       [VppRoutePath(p.tun_if.remote_ip6,
                                     0xffffffff,
                                     proto=DpoProto.DPO_PROTO_IP6)])
        r.add_vpp_config()

    def tearDown(self):
        if not self.vpp_dead:
            self.vapi.cli("show hardware")
        super(TemplateIpsec4TunIfEsp, self).tearDown()


class TestIpsec4TunIfEsp1(TemplateIpsec4TunIfEsp, IpsecTun4Tests):
    """ Ipsec ESP - TUN tests """
    tun4_encrypt_node_name = "esp4-encrypt-tun"
    tun4_decrypt_node_name = "esp4-decrypt"

    def test_tun_basic64(self):
        """ ipsec 6o4 tunnel basic test """
        self.tun4_encrypt_node_name = "esp6-encrypt-tun"

        self.verify_tun_64(self.params[socket.AF_INET], count=1)

    def test_tun_burst64(self):
        """ ipsec 6o4 tunnel basic test """
        self.tun4_encrypt_node_name = "esp6-encrypt-tun"

        self.verify_tun_64(self.params[socket.AF_INET], count=257)

    def test_tun_basic_frag44(self):
        """ ipsec 4o4 tunnel frag basic test """
        self.tun4_encrypt_node_name = "esp4-encrypt-tun"

        p = self.ipv4_params

        self.vapi.sw_interface_set_mtu(p.tun_if.sw_if_index,
                                       [1500, 0, 0, 0])
        self.verify_tun_44(self.params[socket.AF_INET],
                           count=1, payload_size=1800, n_rx=2)
        self.vapi.sw_interface_set_mtu(p.tun_if.sw_if_index,
                                       [9000, 0, 0, 0])


class TestIpsec4TunIfEsp2(TemplateIpsec4TunIfEsp, IpsecTcpTests):
    """ Ipsec ESP - TCP tests """
    pass


class TemplateIpsec6TunIfEsp(TemplateIpsec):
    """ IPsec tunnel interface tests """

    encryption_type = ESP

    def setUp(self):
        super(TemplateIpsec6TunIfEsp, self).setUp()

        self.tun_if = self.pg0

        p = self.ipv6_params
        tun_if = VppIpsecTunInterface(self, self.pg0, p.vpp_tun_spi,
                                      p.scapy_tun_spi, p.crypt_algo_vpp_id,
                                      p.crypt_key, p.crypt_key,
                                      p.auth_algo_vpp_id, p.auth_key,
                                      p.auth_key, is_ip6=True)
        tun_if.add_vpp_config()
        tun_if.admin_up()
        tun_if.config_ip6()
        tun_if.config_ip4()

        r = VppIpRoute(self, p.remote_tun_if_host, 128,
                       [VppRoutePath(tun_if.remote_ip6,
                                     0xffffffff,
                                     proto=DpoProto.DPO_PROTO_IP6)])
        r.add_vpp_config()
        r = VppIpRoute(self, p.remote_tun_if_host4, 32,
                       [VppRoutePath(tun_if.remote_ip4,
                                     0xffffffff)])
        r.add_vpp_config()

    def tearDown(self):
        if not self.vpp_dead:
            self.vapi.cli("show hardware")
        super(TemplateIpsec6TunIfEsp, self).tearDown()


class TestIpsec6TunIfEsp1(TemplateIpsec6TunIfEsp, IpsecTun6Tests):
    """ Ipsec ESP - TUN tests """
    tun6_encrypt_node_name = "esp6-encrypt-tun"
    tun6_decrypt_node_name = "esp6-decrypt"

    def test_tun_basic46(self):
        """ ipsec 4o6 tunnel basic test """
        self.tun6_encrypt_node_name = "esp4-encrypt-tun"
        self.verify_tun_46(self.params[socket.AF_INET6], count=1)

    def test_tun_burst46(self):
        """ ipsec 4o6 tunnel burst test """
        self.tun6_encrypt_node_name = "esp4-encrypt-tun"
        self.verify_tun_46(self.params[socket.AF_INET6], count=257)


class TestIpsec4MultiTunIfEsp(TemplateIpsec, IpsecTun4):
    """ IPsec IPv4 Multi Tunnel interface """

    encryption_type = ESP
    tun4_encrypt_node_name = "esp4-encrypt-tun"
    tun4_decrypt_node_name = "esp4-decrypt"

    def setUp(self):
        super(TestIpsec4MultiTunIfEsp, self).setUp()

        self.tun_if = self.pg0

        self.multi_params = []

        for ii in range(10):
            p = copy.copy(self.ipv4_params)

            p.remote_tun_if_host = "1.1.1.%d" % (ii + 1)
            p.scapy_tun_sa_id = p.scapy_tun_sa_id + ii
            p.scapy_tun_spi = p.scapy_tun_spi + ii
            p.vpp_tun_sa_id = p.vpp_tun_sa_id + ii
            p.vpp_tun_spi = p.vpp_tun_spi + ii

            p.scapy_tra_sa_id = p.scapy_tra_sa_id + ii
            p.scapy_tra_spi = p.scapy_tra_spi + ii
            p.vpp_tra_sa_id = p.vpp_tra_sa_id + ii
            p.vpp_tra_spi = p.vpp_tra_spi + ii

            config_tun_params(p, self.encryption_type, self.tun_if)
            self.multi_params.append(p)

            p.tun_if = VppIpsecTunInterface(self, self.pg0, p.vpp_tun_spi,
                                            p.scapy_tun_spi,
                                            p.crypt_algo_vpp_id,
                                            p.crypt_key, p.crypt_key,
                                            p.auth_algo_vpp_id, p.auth_key,
                                            p.auth_key)
            p.tun_if.add_vpp_config()
            p.tun_if.admin_up()
            p.tun_if.config_ip4()

            VppIpRoute(self, p.remote_tun_if_host, 32,
                       [VppRoutePath(p.tun_if.remote_ip4,
                                     0xffffffff)]).add_vpp_config()

    def tearDown(self):
        if not self.vpp_dead:
            self.vapi.cli("show hardware")
        super(TestIpsec4MultiTunIfEsp, self).tearDown()

    def test_tun_44(self):
        """Multiple IPSEC tunnel interfaces """
        for p in self.multi_params:
            self.verify_tun_44(p, count=127)
            c = p.tun_if.get_rx_stats()
            self.assertEqual(c['packets'], 127)
            c = p.tun_if.get_tx_stats()
            self.assertEqual(c['packets'], 127)


class TestIpsec4TunIfEspAll(TemplateIpsec, IpsecTun4):
    """ IPsec IPv4 Tunnel interface all Algos """

    encryption_type = ESP
    tun4_encrypt_node_name = "esp4-encrypt-tun"
    tun4_decrypt_node_name = "esp4-decrypt"

    def config_network(self, p):
        config_tun_params(p, self.encryption_type, self.tun_if)

        p.tun_if = VppIpsecTunInterface(self, self.pg0, p.vpp_tun_spi,
                                        p.scapy_tun_spi,
                                        p.crypt_algo_vpp_id,
                                        p.crypt_key, p.crypt_key,
                                        p.auth_algo_vpp_id, p.auth_key,
                                        p.auth_key,
                                        salt=p.salt)
        p.tun_if.add_vpp_config()
        p.tun_if.admin_up()
        p.tun_if.config_ip4()
        self.logger.info(self.vapi.cli("sh ipsec sa 0"))
        self.logger.info(self.vapi.cli("sh ipsec sa 1"))

        p.route = VppIpRoute(self, p.remote_tun_if_host, 32,
                             [VppRoutePath(p.tun_if.remote_ip4,
                                           0xffffffff)])
        p.route.add_vpp_config()

    def unconfig_network(self, p):
        p.tun_if.unconfig_ip4()
        p.tun_if.remove_vpp_config()
        p.route.remove_vpp_config()

    def setUp(self):
        super(TestIpsec4TunIfEspAll, self).setUp()

        self.tun_if = self.pg0

    def tearDown(self):
        super(TestIpsec4TunIfEspAll, self).tearDown()

    def rekey(self, p):
        #
        # change the key and the SPI
        #
        p.crypt_key = 'X' + p.crypt_key[1:]
        p.scapy_tun_spi += 1
        p.scapy_tun_sa_id += 1
        p.vpp_tun_spi += 1
        p.vpp_tun_sa_id += 1
        p.tun_if.local_spi = p.vpp_tun_spi
        p.tun_if.remote_spi = p.scapy_tun_spi

        config_tun_params(p, self.encryption_type, self.tun_if)

        p.tun_sa_in = VppIpsecSA(self,
                                 p.scapy_tun_sa_id,
                                 p.scapy_tun_spi,
                                 p.auth_algo_vpp_id,
                                 p.auth_key,
                                 p.crypt_algo_vpp_id,
                                 p.crypt_key,
                                 self.vpp_esp_protocol,
                                 self.tun_if.local_addr[p.addr_type],
                                 self.tun_if.remote_addr[p.addr_type],
                                 flags=p.flags,
                                 salt=p.salt)
        p.tun_sa_out = VppIpsecSA(self,
                                  p.vpp_tun_sa_id,
                                  p.vpp_tun_spi,
                                  p.auth_algo_vpp_id,
                                  p.auth_key,
                                  p.crypt_algo_vpp_id,
                                  p.crypt_key,
                                  self.vpp_esp_protocol,
                                  self.tun_if.remote_addr[p.addr_type],
                                  self.tun_if.local_addr[p.addr_type],
                                  flags=p.flags,
                                  salt=p.salt)
        p.tun_sa_in.add_vpp_config()
        p.tun_sa_out.add_vpp_config()

        self.vapi.ipsec_tunnel_if_set_sa(sw_if_index=p.tun_if.sw_if_index,
                                         sa_id=p.tun_sa_in.id,
                                         is_outbound=1)
        self.vapi.ipsec_tunnel_if_set_sa(sw_if_index=p.tun_if.sw_if_index,
                                         sa_id=p.tun_sa_out.id,
                                         is_outbound=0)
        self.logger.info(self.vapi.cli("sh ipsec sa"))

    def test_tun_44(self):
        """IPSEC tunnel all algos """

        # foreach VPP crypto engine
        engines = ["ia32", "ipsecmb", "openssl"]

        # foreach crypto algorithm
        algos = [{'vpp-crypto': (VppEnum.vl_api_ipsec_crypto_alg_t.
                                 IPSEC_API_CRYPTO_ALG_AES_GCM_128),
                  'vpp-integ': (VppEnum.vl_api_ipsec_integ_alg_t.
                                IPSEC_API_INTEG_ALG_NONE),
                  'scapy-crypto': "AES-GCM",
                  'scapy-integ': "NULL",
                  'key': "JPjyOWBeVEQiMe7h",
                  'salt': 3333},
                 {'vpp-crypto': (VppEnum.vl_api_ipsec_crypto_alg_t.
                                 IPSEC_API_CRYPTO_ALG_AES_GCM_192),
                  'vpp-integ': (VppEnum.vl_api_ipsec_integ_alg_t.
                                IPSEC_API_INTEG_ALG_NONE),
                  'scapy-crypto': "AES-GCM",
                  'scapy-integ': "NULL",
                  'key': "JPjyOWBeVEQiMe7hJPjyOWBe",
                  'salt': 0},
                 {'vpp-crypto': (VppEnum.vl_api_ipsec_crypto_alg_t.
                                 IPSEC_API_CRYPTO_ALG_AES_GCM_256),
                  'vpp-integ': (VppEnum.vl_api_ipsec_integ_alg_t.
                                IPSEC_API_INTEG_ALG_NONE),
                  'scapy-crypto': "AES-GCM",
                  'scapy-integ': "NULL",
                  'key': "JPjyOWBeVEQiMe7hJPjyOWBeVEQiMe7h",
                  'salt': 9999},
                 {'vpp-crypto': (VppEnum.vl_api_ipsec_crypto_alg_t.
                                 IPSEC_API_CRYPTO_ALG_AES_CBC_128),
                  'vpp-integ': (VppEnum.vl_api_ipsec_integ_alg_t.
                                IPSEC_API_INTEG_ALG_SHA1_96),
                  'scapy-crypto': "AES-CBC",
                  'scapy-integ': "HMAC-SHA1-96",
                  'salt': 0,
                  'key': "JPjyOWBeVEQiMe7h"},
                 {'vpp-crypto': (VppEnum.vl_api_ipsec_crypto_alg_t.
                                 IPSEC_API_CRYPTO_ALG_AES_CBC_192),
                  'vpp-integ': (VppEnum.vl_api_ipsec_integ_alg_t.
                                IPSEC_API_INTEG_ALG_SHA1_96),
                  'scapy-crypto': "AES-CBC",
                  'scapy-integ': "HMAC-SHA1-96",
                  'salt': 0,
                  'key': "JPjyOWBeVEQiMe7hJPjyOWBe"},
                 {'vpp-crypto': (VppEnum.vl_api_ipsec_crypto_alg_t.
                                 IPSEC_API_CRYPTO_ALG_AES_CBC_256),
                  'vpp-integ': (VppEnum.vl_api_ipsec_integ_alg_t.
                                IPSEC_API_INTEG_ALG_SHA1_96),
                  'scapy-crypto': "AES-CBC",
                  'scapy-integ': "HMAC-SHA1-96",
                  'salt': 0,
                  'key': "JPjyOWBeVEQiMe7hJPjyOWBeVEQiMe7h"}]

        for engine in engines:
            self.vapi.cli("set crypto handler all %s" % engine)

            #
            # loop through each of the algorithms
            #
            for algo in algos:
                # with self.subTest(algo=algo['scapy']):

                p = copy.copy(self.ipv4_params)
                p.auth_algo_vpp_id = algo['vpp-integ']
                p.crypt_algo_vpp_id = algo['vpp-crypto']
                p.crypt_algo = algo['scapy-crypto']
                p.auth_algo = algo['scapy-integ']
                p.crypt_key = algo['key']
                p.salt = algo['salt']

                self.config_network(p)

                self.verify_tun_44(p, count=127)
                c = p.tun_if.get_rx_stats()
                self.assertEqual(c['packets'], 127)
                c = p.tun_if.get_tx_stats()
                self.assertEqual(c['packets'], 127)

                #
                # rekey the tunnel
                #
                self.rekey(p)
                self.verify_tun_44(p, count=127)

                self.unconfig_network(p)
                p.tun_sa_out.remove_vpp_config()
                p.tun_sa_in.remove_vpp_config()


class TestIpsec6MultiTunIfEsp(TemplateIpsec, IpsecTun6):
    """ IPsec IPv6 Multi Tunnel interface """

    encryption_type = ESP
    tun6_encrypt_node_name = "esp6-encrypt-tun"
    tun6_decrypt_node_name = "esp6-decrypt"

    def setUp(self):
        super(TestIpsec6MultiTunIfEsp, self).setUp()

        self.tun_if = self.pg0

        self.multi_params = []

        for ii in range(10):
            p = copy.copy(self.ipv6_params)

            p.remote_tun_if_host = "1111::%d" % (ii + 1)
            p.scapy_tun_sa_id = p.scapy_tun_sa_id + ii
            p.scapy_tun_spi = p.scapy_tun_spi + ii
            p.vpp_tun_sa_id = p.vpp_tun_sa_id + ii
            p.vpp_tun_spi = p.vpp_tun_spi + ii

            p.scapy_tra_sa_id = p.scapy_tra_sa_id + ii
            p.scapy_tra_spi = p.scapy_tra_spi + ii
            p.vpp_tra_sa_id = p.vpp_tra_sa_id + ii
            p.vpp_tra_spi = p.vpp_tra_spi + ii

            config_tun_params(p, self.encryption_type, self.tun_if)
            self.multi_params.append(p)

            p.tun_if = VppIpsecTunInterface(self, self.pg0, p.vpp_tun_spi,
                                            p.scapy_tun_spi,
                                            p.crypt_algo_vpp_id,
                                            p.crypt_key, p.crypt_key,
                                            p.auth_algo_vpp_id, p.auth_key,
                                            p.auth_key, is_ip6=True)
            p.tun_if.add_vpp_config()
            p.tun_if.admin_up()
            p.tun_if.config_ip6()

            r = VppIpRoute(self, p.remote_tun_if_host, 128,
                           [VppRoutePath(p.tun_if.remote_ip6,
                                         0xffffffff,
                                         proto=DpoProto.DPO_PROTO_IP6)])
            r.add_vpp_config()

    def tearDown(self):
        if not self.vpp_dead:
            self.vapi.cli("show hardware")
        super(TestIpsec6MultiTunIfEsp, self).tearDown()

    def test_tun_66(self):
        """Multiple IPSEC tunnel interfaces """
        for p in self.multi_params:
            self.verify_tun_66(p, count=127)
            c = p.tun_if.get_rx_stats()
            self.assertEqual(c['packets'], 127)
            c = p.tun_if.get_tx_stats()
            self.assertEqual(c['packets'], 127)


class TemplateIpsecGRETunIfEsp(TemplateIpsec):
    """ IPsec GRE tunnel interface tests """

    encryption_type = ESP
    omac = "00:11:22:33:44:55"

    def gen_encrypt_pkts(self, sa, sw_intf, src, dst, count=1,
                         payload_size=100):
        return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
                sa.encrypt(IP(src=self.pg0.remote_ip4,
                              dst=self.pg0.local_ip4) /
                           GRE() /
                           Ether(dst=self.omac) /
                           IP(src="1.1.1.1", dst="1.1.1.2") /
                           UDP(sport=1144, dport=2233) /
                           Raw('X' * payload_size))
                for i in range(count)]

    def gen_pkts(self, sw_intf, src, dst, count=1,
                 payload_size=100):
        return [Ether(dst=self.omac) /
                IP(src="1.1.1.1", dst="1.1.1.2") /
                UDP(sport=1144, dport=2233) /
                Raw('X' * payload_size)
                for i in range(count)]

    def verify_decrypted(self, p, rxs):
        for rx in rxs:
            self.assert_equal(rx[Ether].dst, self.omac)
            self.assert_equal(rx[IP].dst, "1.1.1.2")

    def verify_encrypted(self, p, sa, rxs):
        for rx in rxs:
            try:
                pkt = sa.decrypt(rx[IP])
                if not pkt.haslayer(IP):
                    pkt = IP(pkt[Raw].load)
                self.assert_packet_checksums_valid(pkt)
                self.assert_equal(pkt[IP].dst, self.pg0.remote_ip4)
                self.assert_equal(pkt[IP].src, self.pg0.local_ip4)
                self.assertTrue(pkt.haslayer(GRE))
                e = pkt[Ether]
                self.assertEqual(e[Ether].dst, self.omac)
                self.assertEqual(e[IP].dst, "1.1.1.2")
            except (IndexError, AssertionError):
                self.logger.debug(ppp("Unexpected packet:", rx))
                try:
                    self.logger.debug(ppp("Decrypted packet:", pkt))
                except:
                    pass
                raise

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

        self.tun_if = self.pg0

        p = self.ipv4_params

        bd1 = VppBridgeDomain(self, 1)
        bd1.add_vpp_config()

        p.tun_sa_out = VppIpsecSA(self, p.scapy_tun_sa_id, p.scapy_tun_spi,
                                  p.auth_algo_vpp_id, p.auth_key,
                                  p.crypt_algo_vpp_id, p.crypt_key,
                                  self.vpp_esp_protocol,
                                  self.pg0.local_ip4,
                                  self.pg0.remote_ip4)
        p.tun_sa_out.add_vpp_config()

        p.tun_sa_in = VppIpsecSA(self, p.vpp_tun_sa_id, p.vpp_tun_spi,
                                 p.auth_algo_vpp_id, p.auth_key,
                                 p.crypt_algo_vpp_id, p.crypt_key,
                                 self.vpp_esp_protocol,
                                 self.pg0.remote_ip4,
                                 self.pg0.local_ip4)
        p.tun_sa_in.add_vpp_config()

        self.tun = VppIpsecGRETunInterface(self, self.pg0,
                                           p.tun_sa_out.id,
                                           p.tun_sa_in.id)

        self.tun.add_vpp_config()
        self.tun.admin_up()
        self.tun.config_ip4()

        VppIpRoute(self, p.remote_tun_if_host, 32,
                   [VppRoutePath(self.tun.remote_ip4,
                                 0xffffffff)]).add_vpp_config()
        VppBridgeDomainPort(self, bd1, self.tun).add_vpp_config()
        VppBridgeDomainPort(self, bd1, self.pg1).add_vpp_config()

    def tearDown(self):
        if not self.vpp_dead:
            self.vapi.cli("show hardware")
        self.tun.unconfig_ip4()
        super(TemplateIpsecGRETunIfEsp, self).tearDown()


@unittest.skipIf(is_skip_aarch64_set and is_platform_aarch64,
                 "test doesn't work on aarch64")
class TestIpsecGRETunIfEsp1(TemplateIpsecGRETunIfEsp, IpsecTun4Tests):
    """ Ipsec GRE ESP - TUN tests """
    tun4_encrypt_node_name = "esp4-encrypt"
    tun4_decrypt_node_name = "esp4-decrypt"

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