5 from scapy.layers.inet import IP, ICMP, TCP, UDP
6 from scapy.layers.ipsec import SecurityAssociation
7 from scapy.layers.l2 import Ether, Raw
8 from scapy.layers.inet6 import IPv6, ICMPv6EchoRequest
10 from framework import VppTestCase, VppTestRunner
11 from util import ppp, reassemble4
12 from vpp_papi import VppEnum
15 class IPsecIPv4Params(object):
17 addr_type = socket.AF_INET
19 addr_bcast = "255.255.255.255"
24 self.remote_tun_if_host = '1.1.1.1'
25 self.remote_tun_if_host6 = '1111::1'
27 self.scapy_tun_sa_id = 10
28 self.scapy_tun_spi = 1001
29 self.vpp_tun_sa_id = 20
30 self.vpp_tun_spi = 1000
32 self.scapy_tra_sa_id = 30
33 self.scapy_tra_spi = 2001
34 self.vpp_tra_sa_id = 40
35 self.vpp_tra_spi = 2000
37 self.auth_algo_vpp_id = (VppEnum.vl_api_ipsec_integ_alg_t.
38 IPSEC_API_INTEG_ALG_SHA1_96)
39 self.auth_algo = 'HMAC-SHA1-96' # scapy name
40 self.auth_key = 'C91KUR9GYMm5GfkEvNjX'
42 self.crypt_algo_vpp_id = (VppEnum.vl_api_ipsec_crypto_alg_t.
43 IPSEC_API_CRYPTO_ALG_AES_CBC_128)
44 self.crypt_algo = 'AES-CBC' # scapy name
45 self.crypt_key = 'JPjyOWBeVEQiMe7h'
48 self.nat_header = None
51 class IPsecIPv6Params(object):
53 addr_type = socket.AF_INET6
55 addr_bcast = "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"
60 self.remote_tun_if_host = '1111:1111:1111:1111:1111:1111:1111:1111'
61 self.remote_tun_if_host4 = '1.1.1.1'
63 self.scapy_tun_sa_id = 50
64 self.scapy_tun_spi = 3001
65 self.vpp_tun_sa_id = 60
66 self.vpp_tun_spi = 3000
68 self.scapy_tra_sa_id = 70
69 self.scapy_tra_spi = 4001
70 self.vpp_tra_sa_id = 80
71 self.vpp_tra_spi = 4000
73 self.auth_algo_vpp_id = (VppEnum.vl_api_ipsec_integ_alg_t.
74 IPSEC_API_INTEG_ALG_SHA1_96)
75 self.auth_algo = 'HMAC-SHA1-96' # scapy name
76 self.auth_key = 'C91KUR9GYMm5GfkEvNjX'
78 self.crypt_algo_vpp_id = (VppEnum.vl_api_ipsec_crypto_alg_t.
79 IPSEC_API_CRYPTO_ALG_AES_CBC_128)
80 self.crypt_algo = 'AES-CBC' # scapy name
81 self.crypt_key = 'JPjyOWBeVEQiMe7h'
84 self.nat_header = None
87 def config_tun_params(p, encryption_type, tun_if):
88 ip_class_by_addr_type = {socket.AF_INET: IP, socket.AF_INET6: IPv6}
89 use_esn = bool(p.flags & (VppEnum.vl_api_ipsec_sad_flags_t.
90 IPSEC_API_SAD_FLAG_USE_ESN))
91 if p.crypt_algo == "AES-GCM":
92 crypt_key = p.crypt_key + struct.pack("!I", p.salt)
94 crypt_key = p.crypt_key
95 p.scapy_tun_sa = SecurityAssociation(
96 encryption_type, spi=p.vpp_tun_spi,
97 crypt_algo=p.crypt_algo,
99 auth_algo=p.auth_algo, auth_key=p.auth_key,
100 tunnel_header=ip_class_by_addr_type[p.addr_type](
101 src=tun_if.remote_addr[p.addr_type],
102 dst=tun_if.local_addr[p.addr_type]),
103 nat_t_header=p.nat_header,
105 p.vpp_tun_sa = SecurityAssociation(
106 encryption_type, spi=p.scapy_tun_spi,
107 crypt_algo=p.crypt_algo,
109 auth_algo=p.auth_algo, auth_key=p.auth_key,
110 tunnel_header=ip_class_by_addr_type[p.addr_type](
111 dst=tun_if.remote_addr[p.addr_type],
112 src=tun_if.local_addr[p.addr_type]),
113 nat_t_header=p.nat_header,
117 def config_tra_params(p, encryption_type):
118 use_esn = bool(p.flags & (VppEnum.vl_api_ipsec_sad_flags_t.
119 IPSEC_API_SAD_FLAG_USE_ESN))
120 if p.crypt_algo == "AES-GCM":
121 crypt_key = p.crypt_key + struct.pack("!I", p.salt)
123 crypt_key = p.crypt_key
124 p.scapy_tra_sa = SecurityAssociation(
127 crypt_algo=p.crypt_algo,
129 auth_algo=p.auth_algo,
131 nat_t_header=p.nat_header,
133 p.vpp_tra_sa = SecurityAssociation(
136 crypt_algo=p.crypt_algo,
138 auth_algo=p.auth_algo,
140 nat_t_header=p.nat_header,
144 class TemplateIpsec(VppTestCase):
149 |tra_if| <-------> |VPP|
154 ------ encrypt --- plain ---
155 |tun_if| <------- |VPP| <------ |pg1|
158 ------ decrypt --- plain ---
159 |tun_if| -------> |VPP| ------> |pg1|
165 def ipsec_select_backend(self):
166 """ empty method to be overloaded when necessary """
171 super(TemplateIpsec, cls).setUpClass()
174 def tearDownClass(cls):
175 super(TemplateIpsec, cls).tearDownClass()
177 def setup_params(self):
178 self.ipv4_params = IPsecIPv4Params()
179 self.ipv6_params = IPsecIPv6Params()
180 self.params = {self.ipv4_params.addr_type: self.ipv4_params,
181 self.ipv6_params.addr_type: self.ipv6_params}
183 def config_interfaces(self):
184 self.create_pg_interfaces(range(3))
185 self.interfaces = list(self.pg_interfaces)
186 for i in self.interfaces:
194 super(TemplateIpsec, self).setUp()
198 self.vpp_esp_protocol = (VppEnum.vl_api_ipsec_proto_t.
200 self.vpp_ah_protocol = (VppEnum.vl_api_ipsec_proto_t.
203 self.config_interfaces()
205 self.ipsec_select_backend()
207 def unconfig_interfaces(self):
208 for i in self.interfaces:
214 super(TemplateIpsec, self).tearDown()
216 self.unconfig_interfaces()
218 def show_commands_at_teardown(self):
219 self.logger.info(self.vapi.cli("show hardware"))
221 def gen_encrypt_pkts(self, sa, sw_intf, src, dst, count=1,
223 return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
224 sa.encrypt(IP(src=src, dst=dst) /
225 ICMP() / Raw('X' * payload_size))
226 for i in range(count)]
228 def gen_encrypt_pkts6(self, sa, sw_intf, src, dst, count=1,
230 return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
231 sa.encrypt(IPv6(src=src, dst=dst) /
232 ICMPv6EchoRequest(id=0, seq=1,
233 data='X' * payload_size))
234 for i in range(count)]
236 def gen_pkts(self, sw_intf, src, dst, count=1, payload_size=54):
237 return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
238 IP(src=src, dst=dst) / ICMP() / Raw('X' * payload_size)
239 for i in range(count)]
241 def gen_pkts6(self, sw_intf, src, dst, count=1, payload_size=54):
242 return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
243 IPv6(src=src, dst=dst) /
244 ICMPv6EchoRequest(id=0, seq=1, data='X' * payload_size)
245 for i in range(count)]
248 class IpsecTcp(object):
249 def verify_tcp_checksum(self):
250 self.vapi.cli("test http server")
251 p = self.params[socket.AF_INET]
252 config_tun_params(p, self.encryption_type, self.tun_if)
253 send = (Ether(src=self.tun_if.remote_mac, dst=self.tun_if.local_mac) /
254 p.scapy_tun_sa.encrypt(IP(src=p.remote_tun_if_host,
255 dst=self.tun_if.local_ip4) /
256 TCP(flags='S', dport=80)))
257 self.logger.debug(ppp("Sending packet:", send))
258 recv = self.send_and_expect(self.tun_if, [send], self.tun_if)
260 decrypted = p.vpp_tun_sa.decrypt(recv[IP])
261 self.assert_packet_checksums_valid(decrypted)
264 class IpsecTcpTests(IpsecTcp):
265 def test_tcp_checksum(self):
266 """ verify checksum correctness for vpp generated packets """
267 self.verify_tcp_checksum()
270 class IpsecTra4(object):
271 """ verify methods for Transport v4 """
272 def verify_tra_anti_replay(self, count=1):
273 p = self.params[socket.AF_INET]
274 use_esn = p.vpp_tra_sa.use_esn
276 # fire in a packet with seq number 1
277 pkt = (Ether(src=self.tra_if.remote_mac,
278 dst=self.tra_if.local_mac) /
279 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
280 dst=self.tra_if.local_ip4) /
283 recv_pkts = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
285 # now move the window over to 235
286 pkt = (Ether(src=self.tra_if.remote_mac,
287 dst=self.tra_if.local_mac) /
288 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
289 dst=self.tra_if.local_ip4) /
292 recv_pkts = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
294 # replayed packets are dropped
295 self.send_and_assert_no_replies(self.tra_if, pkt * 3)
296 self.assert_packet_counter_equal(
297 '/err/%s/SA replayed packet' % self.tra4_decrypt_node_name, 3)
299 # the window size is 64 packets
300 # in window are still accepted
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 recv_pkts = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
309 # a packet that does not decrypt does not move the window forward
310 bogus_sa = SecurityAssociation(self.encryption_type,
312 pkt = (Ether(src=self.tra_if.remote_mac,
313 dst=self.tra_if.local_mac) /
314 bogus_sa.encrypt(IP(src=self.tra_if.remote_ip4,
315 dst=self.tra_if.local_ip4) /
318 self.send_and_assert_no_replies(self.tra_if, pkt * 17)
320 self.assert_packet_counter_equal(
321 '/err/%s/Integrity check failed' % self.tra4_decrypt_node_name, 17)
323 # which we can determine since this packet is still in the window
324 pkt = (Ether(src=self.tra_if.remote_mac,
325 dst=self.tra_if.local_mac) /
326 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
327 dst=self.tra_if.local_ip4) /
330 self.send_and_expect(self.tra_if, [pkt], self.tra_if)
332 # out of window are dropped
333 pkt = (Ether(src=self.tra_if.remote_mac,
334 dst=self.tra_if.local_mac) /
335 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
336 dst=self.tra_if.local_ip4) /
339 self.send_and_assert_no_replies(self.tra_if, pkt * 17)
342 # an out of window error with ESN looks like a high sequence
343 # wrap. but since it isn't then the verify will fail.
344 self.assert_packet_counter_equal(
345 '/err/%s/Integrity check failed' %
346 self.tra4_decrypt_node_name, 34)
349 self.assert_packet_counter_equal(
350 '/err/%s/SA replayed packet' %
351 self.tra4_decrypt_node_name, 20)
353 # valid packet moves the window over to 236
354 pkt = (Ether(src=self.tra_if.remote_mac,
355 dst=self.tra_if.local_mac) /
356 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
357 dst=self.tra_if.local_ip4) /
360 rx = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
361 decrypted = p.vpp_tra_sa.decrypt(rx[0][IP])
363 # move VPP's SA to just before the seq-number wrap
364 self.vapi.cli("test ipsec sa %d seq 0xffffffff" % p.scapy_tra_sa_id)
366 # then fire in a packet that VPP should drop because it causes the
367 # seq number to wrap unless we're using extended.
368 pkt = (Ether(src=self.tra_if.remote_mac,
369 dst=self.tra_if.local_mac) /
370 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
371 dst=self.tra_if.local_ip4) /
376 rx = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
377 # in order to decrpyt the high order number needs to wrap
378 p.vpp_tra_sa.seq_num = 0x100000000
379 decrypted = p.vpp_tra_sa.decrypt(rx[0][IP])
381 # send packets with high bits set
382 p.scapy_tra_sa.seq_num = 0x100000005
383 pkt = (Ether(src=self.tra_if.remote_mac,
384 dst=self.tra_if.local_mac) /
385 p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
386 dst=self.tra_if.local_ip4) /
388 seq_num=0x100000005))
389 rx = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
390 # in order to decrpyt the high order number needs to wrap
391 decrypted = p.vpp_tra_sa.decrypt(rx[0][IP])
393 self.send_and_assert_no_replies(self.tra_if, [pkt])
394 self.assert_packet_counter_equal(
395 '/err/%s/sequence number cycled' %
396 self.tra4_encrypt_node_name, 1)
398 # move the security-associations seq number on to the last we used
399 self.vapi.cli("test ipsec sa %d seq 0x15f" % p.scapy_tra_sa_id)
400 p.scapy_tra_sa.seq_num = 351
401 p.vpp_tra_sa.seq_num = 351
403 def verify_tra_basic4(self, count=1):
404 """ ipsec v4 transport basic test """
405 self.vapi.cli("clear errors")
407 p = self.params[socket.AF_INET]
408 send_pkts = self.gen_encrypt_pkts(p.scapy_tra_sa, self.tra_if,
409 src=self.tra_if.remote_ip4,
410 dst=self.tra_if.local_ip4,
412 recv_pkts = self.send_and_expect(self.tra_if, send_pkts,
416 decrypted = p.vpp_tra_sa.decrypt(rx[IP])
417 self.assert_packet_checksums_valid(decrypted)
419 self.logger.debug(ppp("Unexpected packet:", rx))
422 self.logger.info(self.vapi.ppcli("show error"))
423 self.logger.info(self.vapi.ppcli("show ipsec"))
425 pkts = p.tra_sa_in.get_stats()['packets']
426 self.assertEqual(pkts, count,
427 "incorrect SA in counts: expected %d != %d" %
429 pkts = p.tra_sa_out.get_stats()['packets']
430 self.assertEqual(pkts, count,
431 "incorrect SA out counts: expected %d != %d" %
434 self.assert_packet_counter_equal(self.tra4_encrypt_node_name, count)
435 self.assert_packet_counter_equal(self.tra4_decrypt_node_name, count)
438 class IpsecTra4Tests(IpsecTra4):
439 """ UT test methods for Transport v4 """
440 def test_tra_anti_replay(self):
441 """ ipsec v4 transport anti-reply test """
442 self.verify_tra_anti_replay(count=1)
444 def test_tra_basic(self, count=1):
445 """ ipsec v4 transport basic test """
446 self.verify_tra_basic4(count=1)
448 def test_tra_burst(self):
449 """ ipsec v4 transport burst test """
450 self.verify_tra_basic4(count=257)
453 class IpsecTra6(object):
454 """ verify methods for Transport v6 """
455 def verify_tra_basic6(self, count=1):
456 self.vapi.cli("clear errors")
458 p = self.params[socket.AF_INET6]
459 send_pkts = self.gen_encrypt_pkts6(p.scapy_tra_sa, self.tra_if,
460 src=self.tra_if.remote_ip6,
461 dst=self.tra_if.local_ip6,
463 recv_pkts = self.send_and_expect(self.tra_if, send_pkts,
467 decrypted = p.vpp_tra_sa.decrypt(rx[IPv6])
468 self.assert_packet_checksums_valid(decrypted)
470 self.logger.debug(ppp("Unexpected packet:", rx))
473 self.logger.info(self.vapi.ppcli("show error"))
474 self.logger.info(self.vapi.ppcli("show ipsec"))
476 pkts = p.tra_sa_in.get_stats()['packets']
477 self.assertEqual(pkts, count,
478 "incorrect SA in counts: expected %d != %d" %
480 pkts = p.tra_sa_out.get_stats()['packets']
481 self.assertEqual(pkts, count,
482 "incorrect SA out counts: expected %d != %d" %
484 self.assert_packet_counter_equal(self.tra6_encrypt_node_name, count)
485 self.assert_packet_counter_equal(self.tra6_decrypt_node_name, count)
488 class IpsecTra6Tests(IpsecTra6):
489 """ UT test methods for Transport v6 """
490 def test_tra_basic6(self):
491 """ ipsec v6 transport basic test """
492 self.verify_tra_basic6(count=1)
494 def test_tra_burst6(self):
495 """ ipsec v6 transport burst test """
496 self.verify_tra_basic6(count=257)
499 class IpsecTra46Tests(IpsecTra4Tests, IpsecTra6Tests):
500 """ UT test methods for Transport v6 and v4"""
504 class IpsecTun4(object):
505 """ verify methods for Tunnel v4 """
506 def verify_counters(self, p, count):
507 if (hasattr(p, "spd_policy_in_any")):
508 pkts = p.spd_policy_in_any.get_stats()['packets']
509 self.assertEqual(pkts, count,
510 "incorrect SPD any policy: expected %d != %d" %
513 if (hasattr(p, "tun_sa_in")):
514 pkts = p.tun_sa_in.get_stats()['packets']
515 self.assertEqual(pkts, count,
516 "incorrect SA in counts: expected %d != %d" %
518 pkts = p.tun_sa_out.get_stats()['packets']
519 self.assertEqual(pkts, count,
520 "incorrect SA out counts: expected %d != %d" %
523 self.assert_packet_counter_equal(self.tun4_encrypt_node_name, count)
524 self.assert_packet_counter_equal(self.tun4_decrypt_node_name, count)
526 def verify_decrypted(self, p, rxs):
528 self.assert_equal(rx[IP].src, p.remote_tun_if_host)
529 self.assert_equal(rx[IP].dst, self.pg1.remote_ip4)
530 self.assert_packet_checksums_valid(rx)
532 def verify_encrypted(self, p, sa, rxs):
536 decrypt_pkt = p.vpp_tun_sa.decrypt(rx[IP])
537 if not decrypt_pkt.haslayer(IP):
538 decrypt_pkt = IP(decrypt_pkt[Raw].load)
539 decrypt_pkts.append(decrypt_pkt)
540 self.assert_equal(decrypt_pkt.src, self.pg1.remote_ip4)
541 self.assert_equal(decrypt_pkt.dst, p.remote_tun_if_host)
543 self.logger.debug(ppp("Unexpected packet:", rx))
545 self.logger.debug(ppp("Decrypted packet:", decrypt_pkt))
549 pkts = reassemble4(decrypt_pkts)
551 self.assert_packet_checksums_valid(pkt)
553 def verify_tun_44(self, p, count=1, payload_size=64, n_rx=None):
554 self.vapi.cli("clear errors")
558 config_tun_params(p, self.encryption_type, self.tun_if)
559 send_pkts = self.gen_encrypt_pkts(p.scapy_tun_sa, self.tun_if,
560 src=p.remote_tun_if_host,
561 dst=self.pg1.remote_ip4,
563 recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1)
564 self.verify_decrypted(p, recv_pkts)
566 send_pkts = self.gen_pkts(self.pg1, src=self.pg1.remote_ip4,
567 dst=p.remote_tun_if_host, count=count,
568 payload_size=payload_size)
569 recv_pkts = self.send_and_expect(self.pg1, send_pkts,
571 self.verify_encrypted(p, p.vpp_tun_sa, recv_pkts)
574 self.logger.info(self.vapi.ppcli("show error"))
575 self.logger.info(self.vapi.ppcli("show ipsec"))
577 self.verify_counters(p, count)
579 def verify_tun_64(self, p, count=1):
580 self.vapi.cli("clear errors")
582 config_tun_params(p, self.encryption_type, self.tun_if)
583 send_pkts = self.gen_encrypt_pkts6(p.scapy_tun_sa, self.tun_if,
584 src=p.remote_tun_if_host6,
585 dst=self.pg1.remote_ip6,
587 recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1)
588 for recv_pkt in recv_pkts:
589 self.assert_equal(recv_pkt[IPv6].src, p.remote_tun_if_host6)
590 self.assert_equal(recv_pkt[IPv6].dst, self.pg1.remote_ip6)
591 self.assert_packet_checksums_valid(recv_pkt)
592 send_pkts = self.gen_pkts6(self.pg1, src=self.pg1.remote_ip6,
593 dst=p.remote_tun_if_host6, count=count)
594 recv_pkts = self.send_and_expect(self.pg1, send_pkts, self.tun_if)
595 for recv_pkt in recv_pkts:
597 decrypt_pkt = p.vpp_tun_sa.decrypt(recv_pkt[IP])
598 if not decrypt_pkt.haslayer(IPv6):
599 decrypt_pkt = IPv6(decrypt_pkt[Raw].load)
600 self.assert_equal(decrypt_pkt.src, self.pg1.remote_ip6)
601 self.assert_equal(decrypt_pkt.dst, p.remote_tun_if_host6)
602 self.assert_packet_checksums_valid(decrypt_pkt)
604 self.logger.error(ppp("Unexpected packet:", recv_pkt))
607 ppp("Decrypted packet:", decrypt_pkt))
612 self.logger.info(self.vapi.ppcli("show error"))
613 self.logger.info(self.vapi.ppcli("show ipsec"))
615 self.verify_counters(p, count)
618 class IpsecTun4Tests(IpsecTun4):
619 """ UT test methods for Tunnel v4 """
620 def test_tun_basic44(self):
621 """ ipsec 4o4 tunnel basic test """
622 self.verify_tun_44(self.params[socket.AF_INET], count=1)
624 def test_tun_burst44(self):
625 """ ipsec 4o4 tunnel burst test """
626 self.verify_tun_44(self.params[socket.AF_INET], count=257)
629 class IpsecTun6(object):
630 """ verify methods for Tunnel v6 """
631 def verify_counters(self, p, count):
632 if (hasattr(p, "tun_sa_in")):
633 pkts = p.tun_sa_in.get_stats()['packets']
634 self.assertEqual(pkts, count,
635 "incorrect SA in counts: expected %d != %d" %
637 pkts = p.tun_sa_out.get_stats()['packets']
638 self.assertEqual(pkts, count,
639 "incorrect SA out counts: expected %d != %d" %
641 self.assert_packet_counter_equal(self.tun6_encrypt_node_name, count)
642 self.assert_packet_counter_equal(self.tun6_decrypt_node_name, count)
644 def verify_tun_66(self, p, count=1):
645 """ ipsec 6o6 tunnel basic test """
646 self.vapi.cli("clear errors")
648 config_tun_params(p, self.encryption_type, self.tun_if)
649 send_pkts = self.gen_encrypt_pkts6(p.scapy_tun_sa, self.tun_if,
650 src=p.remote_tun_if_host,
651 dst=self.pg1.remote_ip6,
653 recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1)
654 for recv_pkt in recv_pkts:
655 self.assert_equal(recv_pkt[IPv6].src, p.remote_tun_if_host)
656 self.assert_equal(recv_pkt[IPv6].dst, self.pg1.remote_ip6)
657 self.assert_packet_checksums_valid(recv_pkt)
658 send_pkts = self.gen_pkts6(self.pg1, src=self.pg1.remote_ip6,
659 dst=p.remote_tun_if_host,
661 recv_pkts = self.send_and_expect(self.pg1, send_pkts, self.tun_if)
662 for recv_pkt in recv_pkts:
664 decrypt_pkt = p.vpp_tun_sa.decrypt(recv_pkt[IPv6])
665 if not decrypt_pkt.haslayer(IPv6):
666 decrypt_pkt = IPv6(decrypt_pkt[Raw].load)
667 self.assert_equal(decrypt_pkt.src, self.pg1.remote_ip6)
668 self.assert_equal(decrypt_pkt.dst, p.remote_tun_if_host)
669 self.assert_packet_checksums_valid(decrypt_pkt)
671 self.logger.debug(ppp("Unexpected packet:", recv_pkt))
674 ppp("Decrypted packet:", decrypt_pkt))
679 self.logger.info(self.vapi.ppcli("show error"))
680 self.logger.info(self.vapi.ppcli("show ipsec"))
681 self.verify_counters(p, count)
683 def verify_tun_46(self, p, count=1):
684 """ ipsec 4o6 tunnel basic test """
685 self.vapi.cli("clear errors")
687 config_tun_params(p, self.encryption_type, self.tun_if)
688 send_pkts = self.gen_encrypt_pkts(p.scapy_tun_sa, self.tun_if,
689 src=p.remote_tun_if_host4,
690 dst=self.pg1.remote_ip4,
692 recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1)
693 for recv_pkt in recv_pkts:
694 self.assert_equal(recv_pkt[IP].src, p.remote_tun_if_host4)
695 self.assert_equal(recv_pkt[IP].dst, self.pg1.remote_ip4)
696 self.assert_packet_checksums_valid(recv_pkt)
697 send_pkts = self.gen_pkts(self.pg1, src=self.pg1.remote_ip4,
698 dst=p.remote_tun_if_host4,
700 recv_pkts = self.send_and_expect(self.pg1, send_pkts, self.tun_if)
701 for recv_pkt in recv_pkts:
703 decrypt_pkt = p.vpp_tun_sa.decrypt(recv_pkt[IPv6])
704 if not decrypt_pkt.haslayer(IP):
705 decrypt_pkt = IP(decrypt_pkt[Raw].load)
706 self.assert_equal(decrypt_pkt.src, self.pg1.remote_ip4)
707 self.assert_equal(decrypt_pkt.dst, p.remote_tun_if_host4)
708 self.assert_packet_checksums_valid(decrypt_pkt)
710 self.logger.debug(ppp("Unexpected packet:", recv_pkt))
712 self.logger.debug(ppp("Decrypted packet:",
718 self.logger.info(self.vapi.ppcli("show error"))
719 self.logger.info(self.vapi.ppcli("show ipsec"))
720 self.verify_counters(p, count)
723 class IpsecTun6Tests(IpsecTun6):
724 """ UT test methods for Tunnel v6 """
726 def test_tun_basic66(self):
727 """ ipsec 6o6 tunnel basic test """
728 self.verify_tun_66(self.params[socket.AF_INET6], count=1)
730 def test_tun_burst66(self):
731 """ ipsec 6o6 tunnel burst test """
732 self.verify_tun_66(self.params[socket.AF_INET6], count=257)
735 class IpsecTun46Tests(IpsecTun4Tests, IpsecTun6Tests):
736 """ UT test methods for Tunnel v6 & v4 """
740 if __name__ == '__main__':
741 unittest.main(testRunner=VppTestRunner)