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
10 from util import ppp, reassemble4
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_ESN))
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_ESN)
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()
168 self.vpp_esp_protocol = (VppEnum.vl_api_ipsec_proto_t.
170 self.vpp_ah_protocol = (VppEnum.vl_api_ipsec_proto_t.
173 self.create_pg_interfaces(range(3))
174 self.interfaces = list(self.pg_interfaces)
175 for i in self.interfaces:
181 self.ipsec_select_backend()
184 super(TemplateIpsec, self).tearDown()
186 for i in self.interfaces:
191 if not self.vpp_dead:
192 self.vapi.cli("show hardware")
194 def gen_encrypt_pkts(self, sa, sw_intf, src, dst, count=1,
196 return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
197 sa.encrypt(IP(src=src, dst=dst) /
198 ICMP() / Raw('X' * payload_size))
199 for i in range(count)]
201 def gen_encrypt_pkts6(self, sa, sw_intf, src, dst, count=1,
203 return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
204 sa.encrypt(IPv6(src=src, dst=dst) /
205 ICMPv6EchoRequest(id=0, seq=1,
206 data='X' * payload_size))
207 for i in range(count)]
209 def gen_pkts(self, sw_intf, src, dst, count=1, payload_size=54):
210 return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
211 IP(src=src, dst=dst) / ICMP() / Raw('X' * payload_size)
212 for i in range(count)]
214 def gen_pkts6(self, sw_intf, src, dst, count=1, payload_size=54):
215 return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
216 IPv6(src=src, dst=dst) /
217 ICMPv6EchoRequest(id=0, seq=1, data='X' * payload_size)
218 for i in range(count)]
221 class IpsecTcpTests(object):
222 def test_tcp_checksum(self):
223 """ verify checksum correctness for vpp generated packets """
224 self.vapi.cli("test http server")
225 p = self.params[socket.AF_INET]
226 config_tun_params(p, self.encryption_type, self.tun_if)
227 send = (Ether(src=self.tun_if.remote_mac, dst=self.tun_if.local_mac) /
228 p.scapy_tun_sa.encrypt(IP(src=p.remote_tun_if_host,
229 dst=self.tun_if.local_ip4) /
230 TCP(flags='S', dport=80)))
231 self.logger.debug(ppp("Sending packet:", send))
232 recv = self.send_and_expect(self.tun_if, [send], self.tun_if)
234 decrypted = p.vpp_tun_sa.decrypt(recv[IP])
235 self.assert_packet_checksums_valid(decrypted)
238 class IpsecTra4Tests(object):
239 def test_tra_anti_replay(self, count=1):
240 """ ipsec v4 transport anti-reply test """
241 p = self.params[socket.AF_INET]
242 use_esn = p.vpp_tra_sa.use_esn
244 # fire in a packet with seq number 1
245 pkt = (Ether(src=self.tra_if.remote_mac,
246 dst=self.tra_if.local_mac) /
247 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
248 dst=self.tra_if.local_ip4) /
251 recv_pkts = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
253 # now move the window over to 235
254 pkt = (Ether(src=self.tra_if.remote_mac,
255 dst=self.tra_if.local_mac) /
256 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
257 dst=self.tra_if.local_ip4) /
260 recv_pkts = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
262 # replayed packets are dropped
263 self.send_and_assert_no_replies(self.tra_if, pkt * 3)
264 self.assert_packet_counter_equal(
265 '/err/%s/SA replayed packet' % self.tra4_decrypt_node_name, 3)
267 # the window size is 64 packets
268 # in window are still accepted
269 pkt = (Ether(src=self.tra_if.remote_mac,
270 dst=self.tra_if.local_mac) /
271 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
272 dst=self.tra_if.local_ip4) /
275 recv_pkts = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
277 # a packet that does not decrypt does not move the window forward
278 bogus_sa = SecurityAssociation(self.encryption_type,
280 pkt = (Ether(src=self.tra_if.remote_mac,
281 dst=self.tra_if.local_mac) /
282 bogus_sa.encrypt(IP(src=self.tra_if.remote_ip4,
283 dst=self.tra_if.local_ip4) /
286 self.send_and_assert_no_replies(self.tra_if, pkt * 17)
288 self.assert_packet_counter_equal(
289 '/err/%s/Integrity check failed' % self.tra4_decrypt_node_name, 17)
291 # which we can determine since this packet is still in the window
292 pkt = (Ether(src=self.tra_if.remote_mac,
293 dst=self.tra_if.local_mac) /
294 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
295 dst=self.tra_if.local_ip4) /
298 self.send_and_expect(self.tra_if, [pkt], self.tra_if)
300 # out of window are dropped
301 pkt = (Ether(src=self.tra_if.remote_mac,
302 dst=self.tra_if.local_mac) /
303 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
304 dst=self.tra_if.local_ip4) /
307 self.send_and_assert_no_replies(self.tra_if, pkt * 17)
310 # an out of window error with ESN looks like a high sequence
311 # wrap. but since it isn't then the verify will fail.
312 self.assert_packet_counter_equal(
313 '/err/%s/Integrity check failed' %
314 self.tra4_decrypt_node_name, 34)
317 self.assert_packet_counter_equal(
318 '/err/%s/SA replayed packet' %
319 self.tra4_decrypt_node_name, 20)
321 # valid packet moves the window over to 236
322 pkt = (Ether(src=self.tra_if.remote_mac,
323 dst=self.tra_if.local_mac) /
324 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
325 dst=self.tra_if.local_ip4) /
328 rx = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
329 decrypted = p.vpp_tra_sa.decrypt(rx[0][IP])
331 # move VPP's SA to just before the seq-number wrap
332 self.vapi.cli("test ipsec sa %d seq 0xffffffff" % p.scapy_tra_sa_id)
334 # then fire in a packet that VPP should drop because it causes the
335 # seq number to wrap unless we're using extended.
336 pkt = (Ether(src=self.tra_if.remote_mac,
337 dst=self.tra_if.local_mac) /
338 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
339 dst=self.tra_if.local_ip4) /
344 rx = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
345 # in order to decrpyt the high order number needs to wrap
346 p.vpp_tra_sa.seq_num = 0x100000000
347 decrypted = p.vpp_tra_sa.decrypt(rx[0][IP])
349 # send packets with high bits set
350 p.scapy_tra_sa.seq_num = 0x100000005
351 pkt = (Ether(src=self.tra_if.remote_mac,
352 dst=self.tra_if.local_mac) /
353 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
354 dst=self.tra_if.local_ip4) /
356 seq_num=0x100000005))
357 rx = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
358 # in order to decrpyt the high order number needs to wrap
359 decrypted = p.vpp_tra_sa.decrypt(rx[0][IP])
361 self.send_and_assert_no_replies(self.tra_if, [pkt])
362 self.assert_packet_counter_equal(
363 '/err/%s/sequence number cycled' %
364 self.tra4_encrypt_node_name, 1)
366 # move the security-associations seq number on to the last we used
367 self.vapi.cli("test ipsec sa %d seq 0x15f" % p.scapy_tra_sa_id)
368 p.scapy_tra_sa.seq_num = 351
369 p.vpp_tra_sa.seq_num = 351
371 def test_tra_basic(self, count=1):
372 """ ipsec v4 transport basic test """
373 self.vapi.cli("clear errors")
375 p = self.params[socket.AF_INET]
376 send_pkts = self.gen_encrypt_pkts(p.scapy_tra_sa, self.tra_if,
377 src=self.tra_if.remote_ip4,
378 dst=self.tra_if.local_ip4,
380 recv_pkts = self.send_and_expect(self.tra_if, send_pkts,
384 decrypted = p.vpp_tra_sa.decrypt(rx[IP])
385 self.assert_packet_checksums_valid(decrypted)
387 self.logger.debug(ppp("Unexpected packet:", rx))
390 self.logger.info(self.vapi.ppcli("show error"))
391 self.logger.info(self.vapi.ppcli("show ipsec"))
393 pkts = p.tra_sa_in.get_stats()['packets']
394 self.assertEqual(pkts, count,
395 "incorrect SA in counts: expected %d != %d" %
397 pkts = p.tra_sa_out.get_stats()['packets']
398 self.assertEqual(pkts, count,
399 "incorrect SA out counts: expected %d != %d" %
402 self.assert_packet_counter_equal(self.tra4_encrypt_node_name, count)
403 self.assert_packet_counter_equal(self.tra4_decrypt_node_name, count)
405 def test_tra_burst(self):
406 """ ipsec v4 transport burst test """
407 self.test_tra_basic(count=257)
410 class IpsecTra6Tests(object):
411 def test_tra_basic6(self, count=1):
412 """ ipsec v6 transport basic test """
413 self.vapi.cli("clear errors")
415 p = self.params[socket.AF_INET6]
416 send_pkts = self.gen_encrypt_pkts6(p.scapy_tra_sa, self.tra_if,
417 src=self.tra_if.remote_ip6,
418 dst=self.tra_if.local_ip6,
420 recv_pkts = self.send_and_expect(self.tra_if, send_pkts,
424 decrypted = p.vpp_tra_sa.decrypt(rx[IPv6])
425 self.assert_packet_checksums_valid(decrypted)
427 self.logger.debug(ppp("Unexpected packet:", rx))
430 self.logger.info(self.vapi.ppcli("show error"))
431 self.logger.info(self.vapi.ppcli("show ipsec"))
433 pkts = p.tra_sa_in.get_stats()['packets']
434 self.assertEqual(pkts, count,
435 "incorrect SA in counts: expected %d != %d" %
437 pkts = p.tra_sa_out.get_stats()['packets']
438 self.assertEqual(pkts, count,
439 "incorrect SA out counts: expected %d != %d" %
441 self.assert_packet_counter_equal(self.tra6_encrypt_node_name, count)
442 self.assert_packet_counter_equal(self.tra6_decrypt_node_name, count)
444 def test_tra_burst6(self):
445 """ ipsec v6 transport burst test """
446 self.test_tra_basic6(count=257)
449 class IpsecTra46Tests(IpsecTra4Tests, IpsecTra6Tests):
453 class IpsecTun4(object):
455 def verify_counters(self, p, count):
456 if (hasattr(p, "spd_policy_in_any")):
457 pkts = p.spd_policy_in_any.get_stats()['packets']
458 self.assertEqual(pkts, count,
459 "incorrect SPD any policy: expected %d != %d" %
462 if (hasattr(p, "tun_sa_in")):
463 pkts = p.tun_sa_in.get_stats()['packets']
464 self.assertEqual(pkts, count,
465 "incorrect SA in counts: expected %d != %d" %
467 pkts = p.tun_sa_out.get_stats()['packets']
468 self.assertEqual(pkts, count,
469 "incorrect SA out counts: expected %d != %d" %
472 self.assert_packet_counter_equal(self.tun4_encrypt_node_name, count)
473 self.assert_packet_counter_equal(self.tun4_decrypt_node_name, count)
475 def verify_decrypted(self, p, rxs):
477 self.assert_equal(rx[IP].src, p.remote_tun_if_host)
478 self.assert_equal(rx[IP].dst, self.pg1.remote_ip4)
479 self.assert_packet_checksums_valid(rx)
481 def verify_encrypted(self, p, sa, rxs):
485 decrypt_pkt = p.vpp_tun_sa.decrypt(rx[IP])
486 if not decrypt_pkt.haslayer(IP):
487 decrypt_pkt = IP(decrypt_pkt[Raw].load)
488 decrypt_pkts.append(decrypt_pkt)
489 self.assert_equal(decrypt_pkt.src, self.pg1.remote_ip4)
490 self.assert_equal(decrypt_pkt.dst, p.remote_tun_if_host)
492 self.logger.debug(ppp("Unexpected packet:", rx))
494 self.logger.debug(ppp("Decrypted packet:", decrypt_pkt))
498 pkts = reassemble4(decrypt_pkts)
500 self.assert_packet_checksums_valid(pkt)
502 def verify_tun_44(self, p, count=1, payload_size=64, n_rx=None):
503 self.vapi.cli("clear errors")
507 config_tun_params(p, self.encryption_type, self.tun_if)
508 send_pkts = self.gen_encrypt_pkts(p.scapy_tun_sa, self.tun_if,
509 src=p.remote_tun_if_host,
510 dst=self.pg1.remote_ip4,
512 recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1)
513 self.verify_decrypted(p, recv_pkts)
515 send_pkts = self.gen_pkts(self.pg1, src=self.pg1.remote_ip4,
516 dst=p.remote_tun_if_host, count=count,
517 payload_size=payload_size)
518 recv_pkts = self.send_and_expect(self.pg1, send_pkts,
520 self.verify_encrypted(p, p.vpp_tun_sa, recv_pkts)
523 self.logger.info(self.vapi.ppcli("show error"))
524 self.logger.info(self.vapi.ppcli("show ipsec"))
526 self.verify_counters(p, count)
528 def verify_tun_64(self, p, count=1):
529 self.vapi.cli("clear errors")
531 config_tun_params(p, self.encryption_type, self.tun_if)
532 send_pkts = self.gen_encrypt_pkts6(p.scapy_tun_sa, self.tun_if,
533 src=p.remote_tun_if_host6,
534 dst=self.pg1.remote_ip6,
536 recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1)
537 for recv_pkt in recv_pkts:
538 self.assert_equal(recv_pkt[IPv6].src, p.remote_tun_if_host6)
539 self.assert_equal(recv_pkt[IPv6].dst, self.pg1.remote_ip6)
540 self.assert_packet_checksums_valid(recv_pkt)
541 send_pkts = self.gen_pkts6(self.pg1, src=self.pg1.remote_ip6,
542 dst=p.remote_tun_if_host6, count=count)
543 recv_pkts = self.send_and_expect(self.pg1, send_pkts, self.tun_if)
544 for recv_pkt in recv_pkts:
546 decrypt_pkt = p.vpp_tun_sa.decrypt(recv_pkt[IP])
547 if not decrypt_pkt.haslayer(IPv6):
548 decrypt_pkt = IPv6(decrypt_pkt[Raw].load)
549 self.assert_equal(decrypt_pkt.src, self.pg1.remote_ip6)
550 self.assert_equal(decrypt_pkt.dst, p.remote_tun_if_host6)
551 self.assert_packet_checksums_valid(decrypt_pkt)
553 self.logger.error(ppp("Unexpected packet:", recv_pkt))
556 ppp("Decrypted packet:", decrypt_pkt))
561 self.logger.info(self.vapi.ppcli("show error"))
562 self.logger.info(self.vapi.ppcli("show ipsec"))
564 self.verify_counters(p, count)
567 class IpsecTun4Tests(IpsecTun4):
569 def test_tun_basic44(self):
570 """ ipsec 4o4 tunnel basic test """
571 self.verify_tun_44(self.params[socket.AF_INET], count=1)
573 def test_tun_burst44(self):
574 """ ipsec 4o4 tunnel burst test """
575 self.verify_tun_44(self.params[socket.AF_INET], count=257)
578 class IpsecTun6(object):
580 def verify_counters(self, p, count):
581 if (hasattr(p, "tun_sa_in")):
582 pkts = p.tun_sa_in.get_stats()['packets']
583 self.assertEqual(pkts, count,
584 "incorrect SA in counts: expected %d != %d" %
586 pkts = p.tun_sa_out.get_stats()['packets']
587 self.assertEqual(pkts, count,
588 "incorrect SA out counts: expected %d != %d" %
590 self.assert_packet_counter_equal(self.tun6_encrypt_node_name, count)
591 self.assert_packet_counter_equal(self.tun6_decrypt_node_name, count)
593 def verify_tun_66(self, p, count=1):
594 """ ipsec 6o6 tunnel basic test """
595 self.vapi.cli("clear errors")
597 config_tun_params(p, self.encryption_type, self.tun_if)
598 send_pkts = self.gen_encrypt_pkts6(p.scapy_tun_sa, self.tun_if,
599 src=p.remote_tun_if_host,
600 dst=self.pg1.remote_ip6,
602 recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1)
603 for recv_pkt in recv_pkts:
604 self.assert_equal(recv_pkt[IPv6].src, p.remote_tun_if_host)
605 self.assert_equal(recv_pkt[IPv6].dst, self.pg1.remote_ip6)
606 self.assert_packet_checksums_valid(recv_pkt)
607 send_pkts = self.gen_pkts6(self.pg1, src=self.pg1.remote_ip6,
608 dst=p.remote_tun_if_host,
610 recv_pkts = self.send_and_expect(self.pg1, send_pkts, self.tun_if)
611 for recv_pkt in recv_pkts:
613 decrypt_pkt = p.vpp_tun_sa.decrypt(recv_pkt[IPv6])
614 if not decrypt_pkt.haslayer(IPv6):
615 decrypt_pkt = IPv6(decrypt_pkt[Raw].load)
616 self.assert_equal(decrypt_pkt.src, self.pg1.remote_ip6)
617 self.assert_equal(decrypt_pkt.dst, p.remote_tun_if_host)
618 self.assert_packet_checksums_valid(decrypt_pkt)
620 self.logger.debug(ppp("Unexpected packet:", recv_pkt))
623 ppp("Decrypted packet:", decrypt_pkt))
628 self.logger.info(self.vapi.ppcli("show error"))
629 self.logger.info(self.vapi.ppcli("show ipsec"))
630 self.verify_counters(p, count)
632 def verify_tun_46(self, p, count=1):
633 """ ipsec 4o6 tunnel basic test """
634 self.vapi.cli("clear errors")
636 config_tun_params(p, self.encryption_type, self.tun_if)
637 send_pkts = self.gen_encrypt_pkts(p.scapy_tun_sa, self.tun_if,
638 src=p.remote_tun_if_host4,
639 dst=self.pg1.remote_ip4,
641 recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1)
642 for recv_pkt in recv_pkts:
643 self.assert_equal(recv_pkt[IP].src, p.remote_tun_if_host4)
644 self.assert_equal(recv_pkt[IP].dst, self.pg1.remote_ip4)
645 self.assert_packet_checksums_valid(recv_pkt)
646 send_pkts = self.gen_pkts(self.pg1, src=self.pg1.remote_ip4,
647 dst=p.remote_tun_if_host4,
649 recv_pkts = self.send_and_expect(self.pg1, send_pkts, self.tun_if)
650 for recv_pkt in recv_pkts:
652 decrypt_pkt = p.vpp_tun_sa.decrypt(recv_pkt[IPv6])
653 if not decrypt_pkt.haslayer(IP):
654 decrypt_pkt = IP(decrypt_pkt[Raw].load)
655 self.assert_equal(decrypt_pkt.src, self.pg1.remote_ip4)
656 self.assert_equal(decrypt_pkt.dst, p.remote_tun_if_host4)
657 self.assert_packet_checksums_valid(decrypt_pkt)
659 self.logger.debug(ppp("Unexpected packet:", recv_pkt))
661 self.logger.debug(ppp("Decrypted packet:",
667 self.logger.info(self.vapi.ppcli("show error"))
668 self.logger.info(self.vapi.ppcli("show ipsec"))
669 self.verify_counters(p, count)
672 class IpsecTun6Tests(IpsecTun6):
674 def test_tun_basic66(self):
675 """ ipsec 6o6 tunnel basic test """
676 self.verify_tun_66(self.params[socket.AF_INET6], count=1)
678 def test_tun_burst66(self):
679 """ ipsec 6o6 tunnel burst test """
680 self.verify_tun_66(self.params[socket.AF_INET6], count=257)
683 class IpsecTun46Tests(IpsecTun4Tests, IpsecTun6Tests):
687 if __name__ == '__main__':
688 unittest.main(testRunner=VppTestRunner)