4 from scapy.layers.inet import IP, ICMP, TCP, UDP
5 from scapy.layers.ipsec import SecurityAssociation
6 from scapy.layers.l2 import Ether, Raw
7 from scapy.layers.inet6 import IPv6, ICMPv6EchoRequest
9 from framework import VppTestCase, VppTestRunner
11 from vpp_papi import VppEnum
14 class IPsecIPv4Params(object):
16 addr_type = socket.AF_INET
18 addr_bcast = "255.255.255.255"
23 self.remote_tun_if_host = '1.1.1.1'
24 self.remote_tun_if_host6 = '1111::1'
26 self.scapy_tun_sa_id = 10
27 self.scapy_tun_spi = 1001
28 self.vpp_tun_sa_id = 20
29 self.vpp_tun_spi = 1000
31 self.scapy_tra_sa_id = 30
32 self.scapy_tra_spi = 2001
33 self.vpp_tra_sa_id = 40
34 self.vpp_tra_spi = 2000
36 self.auth_algo_vpp_id = (VppEnum.vl_api_ipsec_integ_alg_t.
37 IPSEC_API_INTEG_ALG_SHA1_96)
38 self.auth_algo = 'HMAC-SHA1-96' # scapy name
39 self.auth_key = 'C91KUR9GYMm5GfkEvNjX'
41 self.crypt_algo_vpp_id = (VppEnum.vl_api_ipsec_crypto_alg_t.
42 IPSEC_API_CRYPTO_ALG_AES_CBC_128)
43 self.crypt_algo = 'AES-CBC' # scapy name
44 self.crypt_key = 'JPjyOWBeVEQiMe7h'
46 self.nat_header = None
49 class IPsecIPv6Params(object):
51 addr_type = socket.AF_INET6
53 addr_bcast = "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"
58 self.remote_tun_if_host = '1111:1111:1111:1111:1111:1111:1111:1111'
59 self.remote_tun_if_host4 = '1.1.1.1'
61 self.scapy_tun_sa_id = 50
62 self.scapy_tun_spi = 3001
63 self.vpp_tun_sa_id = 60
64 self.vpp_tun_spi = 3000
66 self.scapy_tra_sa_id = 70
67 self.scapy_tra_spi = 4001
68 self.vpp_tra_sa_id = 80
69 self.vpp_tra_spi = 4000
71 self.auth_algo_vpp_id = (VppEnum.vl_api_ipsec_integ_alg_t.
72 IPSEC_API_INTEG_ALG_SHA_256_128)
73 self.auth_algo = 'SHA2-256-128' # scapy name
74 self.auth_key = 'C91KUR9GYMm5GfkEvNjX'
76 self.crypt_algo_vpp_id = (VppEnum.vl_api_ipsec_crypto_alg_t.
77 IPSEC_API_CRYPTO_ALG_AES_CBC_256)
78 self.crypt_algo = 'AES-CBC' # scapy name
79 self.crypt_key = 'JPjyOWBeVEQiMe7hJPjyOWBeVEQiMe7h'
81 self.nat_header = None
84 def config_tun_params(p, encryption_type, tun_if):
85 ip_class_by_addr_type = {socket.AF_INET: IP, socket.AF_INET6: IPv6}
86 use_esn = bool(p.flags & (VppEnum.vl_api_ipsec_sad_flags_t.
87 IPSEC_API_SAD_FLAG_USE_EXTENDED_SEQ_NUM))
88 p.scapy_tun_sa = SecurityAssociation(
89 encryption_type, spi=p.vpp_tun_spi,
90 crypt_algo=p.crypt_algo, crypt_key=p.crypt_key,
91 auth_algo=p.auth_algo, auth_key=p.auth_key,
92 tunnel_header=ip_class_by_addr_type[p.addr_type](
93 src=tun_if.remote_addr[p.addr_type],
94 dst=tun_if.local_addr[p.addr_type]),
95 nat_t_header=p.nat_header,
97 p.vpp_tun_sa = SecurityAssociation(
98 encryption_type, spi=p.scapy_tun_spi,
99 crypt_algo=p.crypt_algo, crypt_key=p.crypt_key,
100 auth_algo=p.auth_algo, auth_key=p.auth_key,
101 tunnel_header=ip_class_by_addr_type[p.addr_type](
102 dst=tun_if.remote_addr[p.addr_type],
103 src=tun_if.local_addr[p.addr_type]),
104 nat_t_header=p.nat_header,
108 def config_tra_params(p, encryption_type):
109 use_esn = p.flags & (VppEnum.vl_api_ipsec_sad_flags_t.
110 IPSEC_API_SAD_FLAG_USE_EXTENDED_SEQ_NUM)
111 p.scapy_tra_sa = SecurityAssociation(
114 crypt_algo=p.crypt_algo,
115 crypt_key=p.crypt_key,
116 auth_algo=p.auth_algo,
118 nat_t_header=p.nat_header,
120 p.vpp_tra_sa = SecurityAssociation(
123 crypt_algo=p.crypt_algo,
124 crypt_key=p.crypt_key,
125 auth_algo=p.auth_algo,
127 nat_t_header=p.nat_header,
131 class TemplateIpsec(VppTestCase):
136 |tra_if| <-------> |VPP|
141 ------ encrypt --- plain ---
142 |tun_if| <------- |VPP| <------ |pg1|
145 ------ decrypt --- plain ---
146 |tun_if| -------> |VPP| ------> |pg1|
150 def ipsec_select_backend(self):
151 """ empty method to be overloaded when necessary """
154 def setup_params(self):
155 self.ipv4_params = IPsecIPv4Params()
156 self.ipv6_params = IPsecIPv6Params()
157 self.params = {self.ipv4_params.addr_type: self.ipv4_params,
158 self.ipv6_params.addr_type: self.ipv6_params}
161 super(TemplateIpsec, self).setUp()
164 self.payload = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"\
165 "XXXXXXXXXXXXXXXXXXXXX"
170 self.vpp_esp_protocol = (VppEnum.vl_api_ipsec_proto_t.
172 self.vpp_ah_protocol = (VppEnum.vl_api_ipsec_proto_t.
175 self.create_pg_interfaces(range(3))
176 self.interfaces = list(self.pg_interfaces)
177 for i in self.interfaces:
183 self.ipsec_select_backend()
186 super(TemplateIpsec, self).tearDown()
188 for i in self.interfaces:
193 if not self.vpp_dead:
194 self.vapi.cli("show hardware")
196 def gen_encrypt_pkts(self, sa, sw_intf, src, dst, count=1):
197 return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
198 sa.encrypt(IP(src=src, dst=dst) / ICMP() / self.payload)
199 for i in range(count)]
201 def gen_encrypt_pkts6(self, sa, sw_intf, src, dst, count=1):
202 return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
203 sa.encrypt(IPv6(src=src, dst=dst) /
204 ICMPv6EchoRequest(id=0, seq=1, data=self.payload))
205 for i in range(count)]
207 def gen_pkts(self, sw_intf, src, dst, count=1):
208 return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
209 IP(src=src, dst=dst) / ICMP() / self.payload
210 for i in range(count)]
212 def gen_pkts6(self, sw_intf, src, dst, count=1):
213 return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
214 IPv6(src=src, dst=dst) /
215 ICMPv6EchoRequest(id=0, seq=1, data=self.payload)
216 for i in range(count)]
219 class IpsecTcpTests(object):
220 def test_tcp_checksum(self):
221 """ verify checksum correctness for vpp generated packets """
222 self.vapi.cli("test http server")
223 p = self.params[socket.AF_INET]
224 config_tun_params(p, self.encryption_type, self.tun_if)
225 send = (Ether(src=self.tun_if.remote_mac, dst=self.tun_if.local_mac) /
226 p.scapy_tun_sa.encrypt(IP(src=p.remote_tun_if_host,
227 dst=self.tun_if.local_ip4) /
228 TCP(flags='S', dport=80)))
229 self.logger.debug(ppp("Sending packet:", send))
230 recv = self.send_and_expect(self.tun_if, [send], self.tun_if)
232 decrypted = p.vpp_tun_sa.decrypt(recv[IP])
233 self.assert_packet_checksums_valid(decrypted)
236 class IpsecTra4Tests(object):
237 def test_tra_anti_replay(self, count=1):
238 """ ipsec v4 transport anti-reply test """
239 p = self.params[socket.AF_INET]
240 use_esn = p.vpp_tra_sa.use_esn
242 # fire in a packet with seq number 1
243 pkt = (Ether(src=self.tra_if.remote_mac,
244 dst=self.tra_if.local_mac) /
245 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
246 dst=self.tra_if.local_ip4) /
249 recv_pkts = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
251 # now move the window over to 235
252 pkt = (Ether(src=self.tra_if.remote_mac,
253 dst=self.tra_if.local_mac) /
254 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
255 dst=self.tra_if.local_ip4) /
258 recv_pkts = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
260 # replayed packets are dropped
261 self.send_and_assert_no_replies(self.tra_if, pkt * 3)
262 self.assert_packet_counter_equal(
263 '/err/%s/SA replayed packet' % self.tra4_decrypt_node_name, 3)
265 # the window size is 64 packets
266 # in window are still accepted
267 pkt = (Ether(src=self.tra_if.remote_mac,
268 dst=self.tra_if.local_mac) /
269 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
270 dst=self.tra_if.local_ip4) /
273 recv_pkts = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
275 # a packet that does not decrypt does not move the window forward
276 bogus_sa = SecurityAssociation(self.encryption_type,
278 pkt = (Ether(src=self.tra_if.remote_mac,
279 dst=self.tra_if.local_mac) /
280 bogus_sa.encrypt(IP(src=self.tra_if.remote_ip4,
281 dst=self.tra_if.local_ip4) /
284 self.send_and_assert_no_replies(self.tra_if, pkt * 17)
286 self.assert_packet_counter_equal(
287 '/err/%s/Integrity check failed' % self.tra4_decrypt_node_name, 17)
289 # which we can determine since this packet is still in the window
290 pkt = (Ether(src=self.tra_if.remote_mac,
291 dst=self.tra_if.local_mac) /
292 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
293 dst=self.tra_if.local_ip4) /
296 self.send_and_expect(self.tra_if, [pkt], self.tra_if)
298 # out of window are dropped
299 pkt = (Ether(src=self.tra_if.remote_mac,
300 dst=self.tra_if.local_mac) /
301 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
302 dst=self.tra_if.local_ip4) /
305 self.send_and_assert_no_replies(self.tra_if, pkt * 17)
308 # an out of window error with ESN looks like a high sequence
309 # wrap. but since it isn't then the verify will fail.
310 self.assert_packet_counter_equal(
311 '/err/%s/Integrity check failed' %
312 self.tra4_decrypt_node_name, 34)
315 self.assert_packet_counter_equal(
316 '/err/%s/SA replayed packet' %
317 self.tra4_decrypt_node_name, 20)
319 # valid packet moves the window over to 236
320 pkt = (Ether(src=self.tra_if.remote_mac,
321 dst=self.tra_if.local_mac) /
322 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
323 dst=self.tra_if.local_ip4) /
326 rx = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
327 decrypted = p.vpp_tra_sa.decrypt(rx[0][IP])
329 # move VPP's SA to just before the seq-number wrap
330 self.vapi.cli("test ipsec sa %d seq 0xffffffff" % p.scapy_tra_sa_id)
332 # then fire in a packet that VPP should drop because it causes the
333 # seq number to wrap unless we're using extended.
334 pkt = (Ether(src=self.tra_if.remote_mac,
335 dst=self.tra_if.local_mac) /
336 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
337 dst=self.tra_if.local_ip4) /
342 rx = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
343 # in order to decrpyt the high order number needs to wrap
344 p.vpp_tra_sa.seq_num = 0x100000000
345 decrypted = p.vpp_tra_sa.decrypt(rx[0][IP])
347 # send packets with high bits set
348 p.scapy_tra_sa.seq_num = 0x100000005
349 pkt = (Ether(src=self.tra_if.remote_mac,
350 dst=self.tra_if.local_mac) /
351 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
352 dst=self.tra_if.local_ip4) /
354 seq_num=0x100000005))
355 rx = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
356 # in order to decrpyt the high order number needs to wrap
357 decrypted = p.vpp_tra_sa.decrypt(rx[0][IP])
359 self.send_and_assert_no_replies(self.tra_if, [pkt])
360 self.assert_packet_counter_equal(
361 '/err/%s/sequence number cycled' %
362 self.tra4_encrypt_node_name, 1)
364 # move the security-associations seq number on to the last we used
365 self.vapi.cli("test ipsec sa %d seq 0x15f" % p.scapy_tra_sa_id)
366 p.scapy_tra_sa.seq_num = 351
367 p.vpp_tra_sa.seq_num = 351
369 def test_tra_basic(self, count=1):
370 """ ipsec v4 transport basic test """
371 self.vapi.cli("clear errors")
373 p = self.params[socket.AF_INET]
374 send_pkts = self.gen_encrypt_pkts(p.scapy_tra_sa, self.tra_if,
375 src=self.tra_if.remote_ip4,
376 dst=self.tra_if.local_ip4,
378 recv_pkts = self.send_and_expect(self.tra_if, send_pkts,
382 decrypted = p.vpp_tra_sa.decrypt(rx[IP])
383 self.assert_packet_checksums_valid(decrypted)
385 self.logger.debug(ppp("Unexpected packet:", rx))
388 self.logger.info(self.vapi.ppcli("show error"))
389 self.logger.info(self.vapi.ppcli("show ipsec"))
391 pkts = p.tra_sa_in.get_stats()['packets']
392 self.assertEqual(pkts, count,
393 "incorrect SA in counts: expected %d != %d" %
395 pkts = p.tra_sa_out.get_stats()['packets']
396 self.assertEqual(pkts, count,
397 "incorrect SA out counts: expected %d != %d" %
400 self.assert_packet_counter_equal(self.tra4_encrypt_node_name, count)
401 self.assert_packet_counter_equal(self.tra4_decrypt_node_name, count)
403 def test_tra_burst(self):
404 """ ipsec v4 transport burst test """
405 self.test_tra_basic(count=257)
408 class IpsecTra6Tests(object):
409 def test_tra_basic6(self, count=1):
410 """ ipsec v6 transport basic test """
411 self.vapi.cli("clear errors")
413 p = self.params[socket.AF_INET6]
414 send_pkts = self.gen_encrypt_pkts6(p.scapy_tra_sa, self.tra_if,
415 src=self.tra_if.remote_ip6,
416 dst=self.tra_if.local_ip6,
418 recv_pkts = self.send_and_expect(self.tra_if, send_pkts,
422 decrypted = p.vpp_tra_sa.decrypt(rx[IPv6])
423 self.assert_packet_checksums_valid(decrypted)
425 self.logger.debug(ppp("Unexpected packet:", rx))
428 self.logger.info(self.vapi.ppcli("show error"))
429 self.logger.info(self.vapi.ppcli("show ipsec"))
431 pkts = p.tra_sa_in.get_stats()['packets']
432 self.assertEqual(pkts, count,
433 "incorrect SA in counts: expected %d != %d" %
435 pkts = p.tra_sa_out.get_stats()['packets']
436 self.assertEqual(pkts, count,
437 "incorrect SA out counts: expected %d != %d" %
439 self.assert_packet_counter_equal(self.tra6_encrypt_node_name, count)
440 self.assert_packet_counter_equal(self.tra6_decrypt_node_name, count)
442 def test_tra_burst6(self):
443 """ ipsec v6 transport burst test """
444 self.test_tra_basic6(count=257)
447 class IpsecTra46Tests(IpsecTra4Tests, IpsecTra6Tests):
451 class IpsecTun4(object):
453 def verify_counters(self, p, count):
454 if (hasattr(p, "spd_policy_in_any")):
455 pkts = p.spd_policy_in_any.get_stats()['packets']
456 self.assertEqual(pkts, count,
457 "incorrect SPD any policy: expected %d != %d" %
460 if (hasattr(p, "tun_sa_in")):
461 pkts = p.tun_sa_in.get_stats()['packets']
462 self.assertEqual(pkts, count,
463 "incorrect SA in counts: expected %d != %d" %
465 pkts = p.tun_sa_out.get_stats()['packets']
466 self.assertEqual(pkts, count,
467 "incorrect SA out counts: expected %d != %d" %
470 self.assert_packet_counter_equal(self.tun4_encrypt_node_name, count)
471 self.assert_packet_counter_equal(self.tun4_decrypt_node_name, count)
473 def verify_tun_44(self, p, count=1):
474 self.vapi.cli("clear errors")
476 config_tun_params(p, self.encryption_type, self.tun_if)
477 send_pkts = self.gen_encrypt_pkts(p.scapy_tun_sa, self.tun_if,
478 src=p.remote_tun_if_host,
479 dst=self.pg1.remote_ip4,
481 recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1)
482 for recv_pkt in recv_pkts:
483 self.assert_equal(recv_pkt[IP].src, p.remote_tun_if_host)
484 self.assert_equal(recv_pkt[IP].dst, self.pg1.remote_ip4)
485 self.assert_packet_checksums_valid(recv_pkt)
486 send_pkts = self.gen_pkts(self.pg1, src=self.pg1.remote_ip4,
487 dst=p.remote_tun_if_host, count=count)
488 recv_pkts = self.send_and_expect(self.pg1, send_pkts, self.tun_if)
489 for recv_pkt in recv_pkts:
491 decrypt_pkt = p.vpp_tun_sa.decrypt(recv_pkt[IP])
492 if not decrypt_pkt.haslayer(IP):
493 decrypt_pkt = IP(decrypt_pkt[Raw].load)
494 self.assert_equal(decrypt_pkt.src, self.pg1.remote_ip4)
495 self.assert_equal(decrypt_pkt.dst, p.remote_tun_if_host)
496 self.assert_packet_checksums_valid(decrypt_pkt)
498 self.logger.debug(ppp("Unexpected packet:", recv_pkt))
501 ppp("Decrypted packet:", decrypt_pkt))
506 self.logger.info(self.vapi.ppcli("show error"))
507 self.logger.info(self.vapi.ppcli("show ipsec"))
509 self.verify_counters(p, count)
511 def verify_tun_64(self, p, count=1):
512 self.vapi.cli("clear errors")
514 config_tun_params(p, self.encryption_type, self.tun_if)
515 send_pkts = self.gen_encrypt_pkts6(p.scapy_tun_sa, self.tun_if,
516 src=p.remote_tun_if_host6,
517 dst=self.pg1.remote_ip6,
519 recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1)
520 for recv_pkt in recv_pkts:
521 self.assert_equal(recv_pkt[IPv6].src, p.remote_tun_if_host6)
522 self.assert_equal(recv_pkt[IPv6].dst, self.pg1.remote_ip6)
523 self.assert_packet_checksums_valid(recv_pkt)
524 send_pkts = self.gen_pkts6(self.pg1, src=self.pg1.remote_ip6,
525 dst=p.remote_tun_if_host6, count=count)
526 recv_pkts = self.send_and_expect(self.pg1, send_pkts, self.tun_if)
527 for recv_pkt in recv_pkts:
529 decrypt_pkt = p.vpp_tun_sa.decrypt(recv_pkt[IP])
530 if not decrypt_pkt.haslayer(IPv6):
531 decrypt_pkt = IPv6(decrypt_pkt[Raw].load)
532 self.assert_equal(decrypt_pkt.src, self.pg1.remote_ip6)
533 self.assert_equal(decrypt_pkt.dst, p.remote_tun_if_host6)
534 self.assert_packet_checksums_valid(decrypt_pkt)
536 self.logger.error(ppp("Unexpected packet:", recv_pkt))
539 ppp("Decrypted packet:", decrypt_pkt))
544 self.logger.info(self.vapi.ppcli("show error"))
545 self.logger.info(self.vapi.ppcli("show ipsec"))
547 self.verify_counters(p, count)
550 class IpsecTun4Tests(IpsecTun4):
552 def test_tun_basic44(self):
553 """ ipsec 4o4 tunnel basic test """
554 self.verify_tun_44(self.params[socket.AF_INET], count=1)
556 def test_tun_burst44(self):
557 """ ipsec 4o4 tunnel burst test """
558 self.verify_tun_44(self.params[socket.AF_INET], count=257)
561 class IpsecTun6(object):
563 def verify_counters(self, p, count):
564 if (hasattr(p, "tun_sa_in")):
565 pkts = p.tun_sa_in.get_stats()['packets']
566 self.assertEqual(pkts, count,
567 "incorrect SA in counts: expected %d != %d" %
569 pkts = p.tun_sa_out.get_stats()['packets']
570 self.assertEqual(pkts, count,
571 "incorrect SA out counts: expected %d != %d" %
573 self.assert_packet_counter_equal(self.tun6_encrypt_node_name, count)
574 self.assert_packet_counter_equal(self.tun6_decrypt_node_name, count)
576 def verify_tun_66(self, p, count=1):
577 """ ipsec 6o6 tunnel basic test """
578 self.vapi.cli("clear errors")
580 config_tun_params(p, self.encryption_type, self.tun_if)
581 send_pkts = self.gen_encrypt_pkts6(p.scapy_tun_sa, self.tun_if,
582 src=p.remote_tun_if_host,
583 dst=self.pg1.remote_ip6,
585 recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1)
586 for recv_pkt in recv_pkts:
587 self.assert_equal(recv_pkt[IPv6].src, p.remote_tun_if_host)
588 self.assert_equal(recv_pkt[IPv6].dst, self.pg1.remote_ip6)
589 self.assert_packet_checksums_valid(recv_pkt)
590 send_pkts = self.gen_pkts6(self.pg1, src=self.pg1.remote_ip6,
591 dst=p.remote_tun_if_host,
593 recv_pkts = self.send_and_expect(self.pg1, send_pkts, self.tun_if)
594 for recv_pkt in recv_pkts:
596 decrypt_pkt = p.vpp_tun_sa.decrypt(recv_pkt[IPv6])
597 if not decrypt_pkt.haslayer(IPv6):
598 decrypt_pkt = IPv6(decrypt_pkt[Raw].load)
599 self.assert_equal(decrypt_pkt.src, self.pg1.remote_ip6)
600 self.assert_equal(decrypt_pkt.dst, p.remote_tun_if_host)
601 self.assert_packet_checksums_valid(decrypt_pkt)
603 self.logger.debug(ppp("Unexpected packet:", recv_pkt))
606 ppp("Decrypted packet:", decrypt_pkt))
611 self.logger.info(self.vapi.ppcli("show error"))
612 self.logger.info(self.vapi.ppcli("show ipsec"))
613 self.verify_counters(p, count)
615 def verify_tun_46(self, p, count=1):
616 """ ipsec 4o6 tunnel basic test """
617 self.vapi.cli("clear errors")
619 config_tun_params(p, self.encryption_type, self.tun_if)
620 send_pkts = self.gen_encrypt_pkts(p.scapy_tun_sa, self.tun_if,
621 src=p.remote_tun_if_host4,
622 dst=self.pg1.remote_ip4,
624 recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1)
625 for recv_pkt in recv_pkts:
626 self.assert_equal(recv_pkt[IP].src, p.remote_tun_if_host4)
627 self.assert_equal(recv_pkt[IP].dst, self.pg1.remote_ip4)
628 self.assert_packet_checksums_valid(recv_pkt)
629 send_pkts = self.gen_pkts(self.pg1, src=self.pg1.remote_ip4,
630 dst=p.remote_tun_if_host4,
632 recv_pkts = self.send_and_expect(self.pg1, send_pkts, self.tun_if)
633 for recv_pkt in recv_pkts:
635 decrypt_pkt = p.vpp_tun_sa.decrypt(recv_pkt[IPv6])
636 if not decrypt_pkt.haslayer(IP):
637 decrypt_pkt = IP(decrypt_pkt[Raw].load)
638 self.assert_equal(decrypt_pkt.src, self.pg1.remote_ip4)
639 self.assert_equal(decrypt_pkt.dst, p.remote_tun_if_host4)
640 self.assert_packet_checksums_valid(decrypt_pkt)
642 self.logger.debug(ppp("Unexpected packet:", recv_pkt))
644 self.logger.debug(ppp("Decrypted packet:",
650 self.logger.info(self.vapi.ppcli("show error"))
651 self.logger.info(self.vapi.ppcli("show ipsec"))
652 self.verify_counters(p, count)
655 class IpsecTun6Tests(IpsecTun6):
657 def test_tun_basic66(self):
658 """ ipsec 6o6 tunnel basic test """
659 self.verify_tun_66(self.params[socket.AF_INET6], count=1)
661 def test_tun_burst66(self):
662 """ ipsec 6o6 tunnel burst test """
663 self.verify_tun_66(self.params[socket.AF_INET6], count=257)
666 class IpsecTun46Tests(IpsecTun4Tests, IpsecTun6Tests):
670 if __name__ == '__main__':
671 unittest.main(testRunner=VppTestRunner)