6 from framework import VppTestCase, VppTestRunner
7 from vpp_ip import DpoProto
8 from vpp_ip_route import VppIpRoute, VppRoutePath
9 from util import fragment_rfc791, fragment_rfc8200
12 from scapy.layers.l2 import Ether
13 from scapy.packet import Raw
14 from scapy.layers.inet import IP, UDP, ICMP, TCP
15 from scapy.layers.inet6 import IPv6, ICMPv6TimeExceeded, IPv6ExtHdrFragment, \
16 ICMPv6EchoRequest, ICMPv6DestUnreach
19 class TestMAP(VppTestCase):
24 super(TestMAP, cls).setUpClass()
27 def tearDownClass(cls):
28 super(TestMAP, cls).tearDownClass()
31 super(TestMAP, self).setUp()
33 # create 2 pg interfaces
34 self.create_pg_interfaces(range(4))
36 # pg0 is 'inside' IPv4
39 self.pg0.resolve_arp()
40 self.pg0.generate_remote_hosts(2)
41 self.pg0.configure_ipv4_neighbors()
43 # pg1 is 'outside' IPv6
46 self.pg1.generate_remote_hosts(4)
47 self.pg1.configure_ipv6_neighbors()
50 super(TestMAP, self).tearDown()
51 for i in self.pg_interfaces:
56 def send_and_assert_encapped(self, packets, ip6_src, ip6_dst, dmac=None):
58 dmac = self.pg1.remote_mac
60 self.pg0.add_stream(packets)
62 self.pg_enable_capture(self.pg_interfaces)
65 capture = self.pg1.get_capture(len(packets))
66 for rx, tx in zip(capture, packets):
67 self.assertEqual(rx[Ether].dst, dmac)
68 self.assertEqual(rx[IP].src, tx[IP].src)
69 self.assertEqual(rx[IPv6].src, ip6_src)
70 self.assertEqual(rx[IPv6].dst, ip6_dst)
72 def send_and_assert_encapped_one(self, packet, ip6_src, ip6_dst,
74 return self.send_and_assert_encapped([packet], ip6_src, ip6_dst, dmac)
76 def test_api_map_domain_dump(self):
78 map_src = '3000::1/128'
79 client_pfx = '192.168.0.0/16'
81 index = self.vapi.map_add_domain(ip4_prefix=client_pfx,
85 rv = self.vapi.map_domain_dump()
87 # restore the state early so as to not impact subsequent tests.
88 # If an assert fails, we will not get the chance to do it at the end.
89 self.vapi.map_del_domain(index=index)
91 self.assertGreater(len(rv), 0,
92 "Expected output from 'map_domain_dump'")
94 # typedefs are returned as ipaddress objects.
95 # wrap results in str() ugh! to avoid the need to call unicode.
96 self.assertEqual(str(rv[0].ip4_prefix), client_pfx)
97 self.assertEqual(str(rv[0].ip6_prefix), map_dst)
98 self.assertEqual(str(rv[0].ip6_src), map_src)
100 self.assertEqual(rv[0].tag, tag,
101 "output produced incorrect tag value.")
103 def test_map_e_udp(self):
107 # Add a route to the MAP-BR
109 map_br_pfx = "2001::"
111 map_route = VppIpRoute(self,
114 [VppRoutePath(self.pg1.remote_ip6,
115 self.pg1.sw_if_index)])
116 map_route.add_vpp_config()
119 # Add a domain that maps from pg0 to pg1
121 map_dst = '2001::/32'
122 map_src = '3000::1/128'
123 client_pfx = '192.168.0.0/16'
124 map_translated_addr = '2001:0:101:7000:0:c0a8:101:7'
126 self.vapi.map_add_domain(ip4_prefix=client_pfx,
134 self.vapi.map_param_set_security_check(enable=1, fragments=1)
136 # Enable MAP on interface.
137 self.vapi.map_if_enable_disable(is_enable=1,
138 sw_if_index=self.pg0.sw_if_index,
141 # Ensure MAP doesn't steal all packets!
142 v4 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
143 IP(src=self.pg0.remote_ip4, dst=self.pg0.remote_ip4) /
144 UDP(sport=20000, dport=10000) /
146 rx = self.send_and_expect(self.pg0, v4 * 4, self.pg0)
150 self.validate(p[1], v4_reply)
153 # Fire in a v4 packet that will be encapped to the BR
155 v4 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
156 IP(src=self.pg0.remote_ip4, dst='192.168.1.1') /
157 UDP(sport=20000, dport=10000) /
160 self.send_and_assert_encapped(v4 * 4, "3000::1", map_translated_addr)
163 # Verify reordered fragments are able to pass as well
165 v4 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
166 IP(id=1, src=self.pg0.remote_ip4, dst='192.168.1.1') /
167 UDP(sport=20000, dport=10000) /
170 frags = fragment_rfc791(v4, 400)
173 self.send_and_assert_encapped(frags, "3000::1", map_translated_addr)
175 # Enable MAP on interface.
176 self.vapi.map_if_enable_disable(is_enable=1,
177 sw_if_index=self.pg1.sw_if_index,
180 # Ensure MAP doesn't steal all packets
181 v6 = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
182 IPv6(src=self.pg1.remote_ip6, dst=self.pg1.remote_ip6) /
183 UDP(sport=20000, dport=10000) /
185 rx = self.send_and_expect(self.pg1, v6*1, self.pg1)
189 self.validate(p[1], v6_reply)
192 # Fire in a V6 encapped packet.
193 # expect a decapped packet on the inside ip4 link
195 p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
196 IPv6(dst='3000::1', src=map_translated_addr) /
197 IP(dst=self.pg0.remote_ip4, src='192.168.1.1') /
198 UDP(sport=10000, dport=20000) /
201 self.pg1.add_stream(p)
203 self.pg_enable_capture(self.pg_interfaces)
206 rx = self.pg0.get_capture(1)
209 self.assertFalse(rx.haslayer(IPv6))
210 self.assertEqual(rx[IP].src, p[IP].src)
211 self.assertEqual(rx[IP].dst, p[IP].dst)
214 # Verify encapped reordered fragments pass as well
216 p = (IP(id=1, dst=self.pg0.remote_ip4, src='192.168.1.1') /
217 UDP(sport=10000, dport=20000) /
219 frags = fragment_rfc791(p, 400)
222 stream = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
223 IPv6(dst='3000::1', src=map_translated_addr) /
226 self.pg1.add_stream(stream)
228 self.pg_enable_capture(self.pg_interfaces)
231 rx = self.pg0.get_capture(len(frags))
234 self.assertFalse(r.haslayer(IPv6))
235 self.assertEqual(r[IP].src, p[IP].src)
236 self.assertEqual(r[IP].dst, p[IP].dst)
238 # Verify that fragments pass even if ipv6 layer is fragmented
239 stream = (IPv6(dst='3000::1', src=map_translated_addr) / x
243 Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / x
244 for i in range(len(frags))
245 for x in fragment_rfc8200(
246 IPv6(dst='3000::1', src=map_translated_addr) / frags[i],
249 self.pg1.add_stream(v6_stream)
251 self.pg_enable_capture(self.pg_interfaces)
254 rx = self.pg0.get_capture(len(frags))
257 self.assertFalse(r.haslayer(IPv6))
258 self.assertEqual(r[IP].src, p[IP].src)
259 self.assertEqual(r[IP].dst, p[IP].dst)
262 # Pre-resolve. No API for this!!
264 self.vapi.ppcli("map params pre-resolve ip6-nh 4001::1")
266 self.send_and_assert_no_replies(self.pg0, v4,
267 "resolved via default route")
270 # Add a route to 4001::1. Expect the encapped traffic to be
271 # sent via that routes next-hop
273 pre_res_route = VppIpRoute(self, "4001::1", 128,
274 [VppRoutePath(self.pg1.remote_hosts[2].ip6,
275 self.pg1.sw_if_index)])
276 pre_res_route.add_vpp_config()
278 self.send_and_assert_encapped_one(v4, "3000::1",
280 dmac=self.pg1.remote_hosts[2].mac)
283 # change the route to the pre-solved next-hop
285 pre_res_route.modify([VppRoutePath(self.pg1.remote_hosts[3].ip6,
286 self.pg1.sw_if_index)])
287 pre_res_route.add_vpp_config()
289 self.send_and_assert_encapped_one(v4, "3000::1",
291 dmac=self.pg1.remote_hosts[3].mac)
294 # cleanup. The test infra's object registry will ensure
295 # the route is really gone and thus that the unresolve worked.
297 pre_res_route.remove_vpp_config()
298 self.vapi.ppcli("map params pre-resolve del ip6-nh 4001::1")
300 def test_map_e_inner_frag(self):
301 """ MAP-E Inner fragmentation """
304 # Add a route to the MAP-BR
306 map_br_pfx = "2001::"
308 map_route = VppIpRoute(self,
311 [VppRoutePath(self.pg1.remote_ip6,
312 self.pg1.sw_if_index)])
313 map_route.add_vpp_config()
316 # Add a domain that maps from pg0 to pg1
318 map_dst = '2001::/32'
319 map_src = '3000::1/128'
320 client_pfx = '192.168.0.0/16'
321 map_translated_addr = '2001:0:101:7000:0:c0a8:101:7'
323 self.vapi.map_add_domain(ip4_prefix=client_pfx,
332 # Enable MAP on interface.
333 self.vapi.map_if_enable_disable(is_enable=1,
334 sw_if_index=self.pg0.sw_if_index,
337 # Enable inner fragmentation
338 self.vapi.map_param_set_fragmentation(inner=1)
340 v4 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
341 IP(src=self.pg0.remote_ip4, dst='192.168.1.1') /
342 UDP(sport=20000, dport=10000) /
345 self.pg_send(self.pg0, v4*1)
346 rx = self.pg1.get_capture(2)
348 frags = fragment_rfc791(v4[1], 1000)
356 v6_reply1 = (IPv6(src='3000::1', dst=map_translated_addr, hlim=63) /
358 v6_reply2 = (IPv6(src='3000::1', dst=map_translated_addr, hlim=63) /
364 rx[0][1][IP].chksum = 0
365 rx[1][1][IP].chksum = 0
367 self.validate(rx[0][1], v6_reply1)
368 self.validate(rx[1][1], v6_reply2)
370 def test_map_e_tcp_mss(self):
374 # Add a route to the MAP-BR
376 map_br_pfx = "2001::"
378 map_route = VppIpRoute(self,
381 [VppRoutePath(self.pg1.remote_ip6,
382 self.pg1.sw_if_index)])
383 map_route.add_vpp_config()
386 # Add a domain that maps from pg0 to pg1
388 map_dst = '2001::/32'
389 map_src = '3000::1/128'
390 client_pfx = '192.168.0.0/16'
391 map_translated_addr = '2001:0:101:5000:0:c0a8:101:5'
392 tag = 'MAP-E TCP tag.'
393 self.vapi.map_add_domain(ip4_prefix=client_pfx,
401 # Enable MAP on pg0 interface.
402 self.vapi.map_if_enable_disable(is_enable=1,
403 sw_if_index=self.pg0.sw_if_index,
406 # Enable MAP on pg1 interface.
407 self.vapi.map_if_enable_disable(is_enable=1,
408 sw_if_index=self.pg1.sw_if_index,
413 self.vapi.map_param_set_tcp(mss_clamp)
416 # Send a v4 packet that will be encapped.
418 p_ether = Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
419 p_ip4 = IP(src=self.pg0.remote_ip4, dst='192.168.1.1')
420 p_tcp = TCP(sport=20000, dport=30000, flags="S",
421 options=[("MSS", 1455)])
422 p4 = p_ether / p_ip4 / p_tcp
424 self.pg1.add_stream(p4)
425 self.pg_enable_capture(self.pg_interfaces)
428 rx = self.pg1.get_capture(1)
431 self.assertTrue(rx.haslayer(IPv6))
432 self.assertEqual(rx[IP].src, p4[IP].src)
433 self.assertEqual(rx[IP].dst, p4[IP].dst)
434 self.assertEqual(rx[IPv6].src, "3000::1")
435 self.assertEqual(rx[TCP].options,
436 TCP(options=[('MSS', mss_clamp)]).options)
438 def validate(self, rx, expected):
439 self.assertEqual(rx, expected.__class__(scapy.compat.raw(expected)))
441 def validate_frag6(self, p6_frag, p_ip6_expected):
442 self.assertFalse(p6_frag.haslayer(IP))
443 self.assertTrue(p6_frag.haslayer(IPv6))
444 self.assertTrue(p6_frag.haslayer(IPv6ExtHdrFragment))
445 self.assertEqual(p6_frag[IPv6].src, p_ip6_expected.src)
446 self.assertEqual(p6_frag[IPv6].dst, p_ip6_expected.dst)
448 def validate_frag_payload_len6(self, rx, proto, payload_len_expected):
451 payload_total += p[IPv6].plen
453 # First fragment has proto
454 payload_total -= len(proto())
456 # Every fragment has IPv6 fragment header
457 payload_total -= len(IPv6ExtHdrFragment()) * len(rx)
459 self.assertEqual(payload_total, payload_len_expected)
461 def validate_frag4(self, p4_frag, p_ip4_expected):
462 self.assertFalse(p4_frag.haslayer(IPv6))
463 self.assertTrue(p4_frag.haslayer(IP))
464 self.assertTrue(p4_frag[IP].frag != 0 or p4_frag[IP].flags.MF)
465 self.assertEqual(p4_frag[IP].src, p_ip4_expected.src)
466 self.assertEqual(p4_frag[IP].dst, p_ip4_expected.dst)
468 def validate_frag_payload_len4(self, rx, proto, payload_len_expected):
471 payload_total += len(p[IP].payload)
473 # First fragment has proto
474 payload_total -= len(proto())
476 self.assertEqual(payload_total, payload_len_expected)
478 def payload(self, len):
481 def test_map_t(self):
485 # Add a domain that maps from pg0 to pg1
487 map_dst = '2001:db8::/32'
488 map_src = '1234:5678:90ab:cdef::/64'
489 ip4_pfx = '192.168.0.0/24'
492 self.vapi.map_add_domain(ip6_prefix=map_dst,
501 # Enable MAP-T on interfaces.
502 self.vapi.map_if_enable_disable(is_enable=1,
503 sw_if_index=self.pg0.sw_if_index,
505 self.vapi.map_if_enable_disable(is_enable=1,
506 sw_if_index=self.pg1.sw_if_index,
509 # Ensure MAP doesn't steal all packets!
510 v4 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
511 IP(src=self.pg0.remote_ip4, dst=self.pg0.remote_ip4) /
512 UDP(sport=20000, dport=10000) /
514 rx = self.send_and_expect(self.pg0, v4*1, self.pg0)
518 self.validate(p[1], v4_reply)
519 # Ensure MAP doesn't steal all packets
520 v6 = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
521 IPv6(src=self.pg1.remote_ip6, dst=self.pg1.remote_ip6) /
522 UDP(sport=20000, dport=10000) /
524 rx = self.send_and_expect(self.pg1, v6*1, self.pg1)
528 self.validate(p[1], v6_reply)
530 map_route = VppIpRoute(self,
533 [VppRoutePath(self.pg1.remote_ip6,
534 self.pg1.sw_if_index,
535 proto=DpoProto.DPO_PROTO_IP6)])
536 map_route.add_vpp_config()
539 # Send a v4 packet that will be translated
541 p_ether = Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
542 p_ip4 = IP(src=self.pg0.remote_ip4, dst='192.168.0.1')
543 payload = TCP(sport=0xabcd, dport=0xabcd)
545 p4 = (p_ether / p_ip4 / payload)
546 p6_translated = (IPv6(src="1234:5678:90ab:cdef:ac:1001:200:0",
547 dst="2001:db8:1f0::c0a8:1:f") / payload)
548 p6_translated.hlim -= 1
549 rx = self.send_and_expect(self.pg0, p4*1, self.pg1)
551 self.validate(p[1], p6_translated)
553 # Send back an IPv6 packet that will be "untranslated"
554 p_ether6 = Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac)
555 p_ip6 = IPv6(src='2001:db8:1f0::c0a8:1:f',
556 dst='1234:5678:90ab:cdef:ac:1001:200:0')
557 p6 = (p_ether6 / p_ip6 / payload)
558 p4_translated = (IP(src='192.168.0.1',
559 dst=self.pg0.remote_ip4) / payload)
561 p4_translated.ttl -= 1
562 rx = self.send_and_expect(self.pg1, p6*1, self.pg0)
564 self.validate(p[1], p4_translated)
567 ip4_ttl_expired = IP(src=self.pg0.remote_ip4, dst='192.168.0.1', ttl=0)
568 p4 = (p_ether / ip4_ttl_expired / payload)
570 icmp4_reply = (IP(id=0, ttl=254, src=self.pg0.local_ip4,
571 dst=self.pg0.remote_ip4) /
572 ICMP(type='time-exceeded',
573 code='ttl-zero-during-transit') /
574 IP(src=self.pg0.remote_ip4,
575 dst='192.168.0.1', ttl=0) / payload)
576 rx = self.send_and_expect(self.pg0, p4*1, self.pg0)
578 self.validate(p[1], icmp4_reply)
581 ip4_ttl_expired = IP(src=self.pg0.remote_ip4, dst='192.168.0.1', ttl=1)
582 p4 = (p_ether / ip4_ttl_expired / payload)
584 icmp4_reply = (IP(id=0, ttl=254, src=self.pg0.local_ip4,
585 dst=self.pg0.remote_ip4) /
586 ICMP(type='time-exceeded',
587 code='ttl-zero-during-transit') /
588 IP(src=self.pg0.remote_ip4,
589 dst='192.168.0.1', ttl=1) / payload)
590 rx = self.send_and_expect(self.pg0, p4*1, self.pg0)
592 self.validate(p[1], icmp4_reply)
594 # IPv6 Hop limit at BR
595 ip6_hlim_expired = IPv6(hlim=1, src='2001:db8:1ab::c0a8:1:ab',
596 dst='1234:5678:90ab:cdef:ac:1001:200:0')
597 p6 = (p_ether6 / ip6_hlim_expired / payload)
599 icmp6_reply = (IPv6(hlim=255, src=self.pg1.local_ip6,
600 dst="2001:db8:1ab::c0a8:1:ab") /
601 ICMPv6TimeExceeded(code=0) /
602 IPv6(src="2001:db8:1ab::c0a8:1:ab",
603 dst='1234:5678:90ab:cdef:ac:1001:200:0',
605 rx = self.send_and_expect(self.pg1, p6*1, self.pg1)
607 self.validate(p[1], icmp6_reply)
609 # IPv6 Hop limit beyond BR
610 ip6_hlim_expired = IPv6(hlim=0, src='2001:db8:1ab::c0a8:1:ab',
611 dst='1234:5678:90ab:cdef:ac:1001:200:0')
612 p6 = (p_ether6 / ip6_hlim_expired / payload)
614 icmp6_reply = (IPv6(hlim=255, src=self.pg1.local_ip6,
615 dst="2001:db8:1ab::c0a8:1:ab") /
616 ICMPv6TimeExceeded(code=0) /
617 IPv6(src="2001:db8:1ab::c0a8:1:ab",
618 dst='1234:5678:90ab:cdef:ac:1001:200:0',
620 rx = self.send_and_expect(self.pg1, p6*1, self.pg1)
622 self.validate(p[1], icmp6_reply)
624 # IPv4 Well-known port
625 p_ip4 = IP(src=self.pg0.remote_ip4, dst='192.168.0.1')
626 payload = UDP(sport=200, dport=200)
627 p4 = (p_ether / p_ip4 / payload)
628 self.send_and_assert_no_replies(self.pg0, p4*1)
630 # IPv6 Well-known port
631 payload = UDP(sport=200, dport=200)
632 p6 = (p_ether6 / p_ip6 / payload)
633 self.send_and_assert_no_replies(self.pg1, p6*1)
635 # UDP packet fragmentation
637 payload = UDP(sport=40000, dport=4000) / self.payload(payload_len)
638 p4 = (p_ether / p_ip4 / payload)
639 self.pg_enable_capture()
640 self.pg0.add_stream(p4)
642 rx = self.pg1.get_capture(2)
644 p_ip6_translated = IPv6(src='1234:5678:90ab:cdef:ac:1001:200:0',
645 dst='2001:db8:1e0::c0a8:1:e')
647 self.validate_frag6(p, p_ip6_translated)
649 self.validate_frag_payload_len6(rx, UDP, payload_len)
651 # UDP packet fragmentation send fragments
653 payload = UDP(sport=40000, dport=4000) / self.payload(payload_len)
654 p4 = (p_ether / p_ip4 / payload)
655 frags = fragment_rfc791(p4, fragsize=1000)
656 self.pg_enable_capture()
657 self.pg0.add_stream(frags)
659 rx = self.pg1.get_capture(2)
662 self.validate_frag6(p, p_ip6_translated)
664 self.validate_frag_payload_len6(rx, UDP, payload_len)
666 # Send back an fragmented IPv6 UDP packet that will be "untranslated"
667 payload = UDP(sport=4000, dport=40000) / self.payload(payload_len)
668 p_ether6 = Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac)
669 p_ip6 = IPv6(src='2001:db8:1e0::c0a8:1:e',
670 dst='1234:5678:90ab:cdef:ac:1001:200:0')
671 p6 = (p_ether6 / p_ip6 / payload)
672 frags6 = fragment_rfc8200(p6, identification=0xdcba, fragsize=1000)
674 p_ip4_translated = IP(src='192.168.0.1', dst=self.pg0.remote_ip4)
675 p4_translated = (p_ip4_translated / payload)
677 p4_translated.ttl -= 1
679 self.pg_enable_capture()
680 self.pg1.add_stream(frags6)
682 rx = self.pg0.get_capture(2)
685 self.validate_frag4(p, p4_translated)
687 self.validate_frag_payload_len4(rx, UDP, payload_len)
689 # ICMP packet fragmentation
690 payload = ICMP(id=6529) / self.payload(payload_len)
691 p4 = (p_ether / p_ip4 / payload)
692 self.pg_enable_capture()
693 self.pg0.add_stream(p4)
695 rx = self.pg1.get_capture(2)
697 p_ip6_translated = IPv6(src='1234:5678:90ab:cdef:ac:1001:200:0',
698 dst='2001:db8:160::c0a8:1:6')
700 self.validate_frag6(p, p_ip6_translated)
702 self.validate_frag_payload_len6(rx, ICMPv6EchoRequest, payload_len)
704 # ICMP packet fragmentation send fragments
705 payload = ICMP(id=6529) / self.payload(payload_len)
706 p4 = (p_ether / p_ip4 / payload)
707 frags = fragment_rfc791(p4, fragsize=1000)
708 self.pg_enable_capture()
709 self.pg0.add_stream(frags)
711 rx = self.pg1.get_capture(2)
714 self.validate_frag6(p, p_ip6_translated)
716 self.validate_frag_payload_len6(rx, ICMPv6EchoRequest, payload_len)
719 self.vapi.map_param_set_tcp(1300)
722 # Send a v4 TCP SYN packet that will be translated and MSS clamped
724 p_ether = Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
725 p_ip4 = IP(src=self.pg0.remote_ip4, dst='192.168.0.1')
726 payload = TCP(sport=0xabcd, dport=0xabcd, flags="S",
727 options=[('MSS', 1460)])
729 p4 = (p_ether / p_ip4 / payload)
730 p6_translated = (IPv6(src="1234:5678:90ab:cdef:ac:1001:200:0",
731 dst="2001:db8:1f0::c0a8:1:f") / payload)
732 p6_translated.hlim -= 1
733 p6_translated[TCP].options = [('MSS', 1300)]
734 rx = self.send_and_expect(self.pg0, p4*1, self.pg1)
736 self.validate(p[1], p6_translated)
738 # Send back an IPv6 packet that will be "untranslated"
739 p_ether6 = Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac)
740 p_ip6 = IPv6(src='2001:db8:1f0::c0a8:1:f',
741 dst='1234:5678:90ab:cdef:ac:1001:200:0')
742 p6 = (p_ether6 / p_ip6 / payload)
743 p4_translated = (IP(src='192.168.0.1',
744 dst=self.pg0.remote_ip4) / payload)
746 p4_translated.ttl -= 1
747 p4_translated[TCP].options = [('MSS', 1300)]
748 rx = self.send_and_expect(self.pg1, p6*1, self.pg0)
750 self.validate(p[1], p4_translated)
752 # TCP MSS clamping cleanup
753 self.vapi.map_param_set_tcp(0)
755 # Enable icmp6 param to get back ICMPv6 unreachable messages in case
756 # of security check fails
757 self.vapi.map_param_set_icmp6(enable_unreachable=1)
759 # Send back an IPv6 packet that will be droppped due to security
761 p_ether6 = Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac)
762 p_ip6_sec_check_fail = IPv6(src='2001:db8:1fe::c0a8:1:f',
763 dst='1234:5678:90ab:cdef:ac:1001:200:0')
764 payload = TCP(sport=0xabcd, dport=0xabcd)
765 p6 = (p_ether6 / p_ip6_sec_check_fail / payload)
767 self.pg_send(self.pg1, p6*1)
768 self.pg0.get_capture(0, timeout=1)
769 rx = self.pg1.get_capture(1)
771 icmp6_reply = (IPv6(hlim=255, src=self.pg1.local_ip6,
772 dst='2001:db8:1fe::c0a8:1:f') /
773 ICMPv6DestUnreach(code=5) /
774 p_ip6_sec_check_fail / payload)
777 self.validate(p[1], icmp6_reply)
779 # ICMPv6 unreachable messages cleanup
780 self.vapi.map_param_set_icmp6(enable_unreachable=0)
782 def test_map_t_ip6_psid(self):
783 """ MAP-T v6->v4 PSID validation"""
786 # Add a domain that maps from pg0 to pg1
788 map_dst = '2001:db8::/32'
789 map_src = '1234:5678:90ab:cdef::/64'
790 ip4_pfx = '192.168.0.0/24'
791 tag = 'MAP-T Test Domain'
793 self.vapi.map_add_domain(ip6_prefix=map_dst,
802 # Enable MAP-T on interfaces.
803 self.vapi.map_if_enable_disable(is_enable=1,
804 sw_if_index=self.pg0.sw_if_index,
806 self.vapi.map_if_enable_disable(is_enable=1,
807 sw_if_index=self.pg1.sw_if_index,
810 map_route = VppIpRoute(self,
813 [VppRoutePath(self.pg1.remote_ip6,
814 self.pg1.sw_if_index,
815 proto=DpoProto.DPO_PROTO_IP6)])
816 map_route.add_vpp_config()
818 p_ether6 = Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac)
819 p_ip6 = IPv6(src='2001:db8:1f0::c0a8:1:f',
820 dst='1234:5678:90ab:cdef:ac:1001:200:0')
822 # Send good IPv6 source port, ensure translated IPv4 received
823 payload = TCP(sport=0xabcd, dport=80)
824 p6 = (p_ether6 / p_ip6 / payload)
825 p4_translated = (IP(src='192.168.0.1',
826 dst=self.pg0.remote_ip4) / payload)
828 p4_translated.ttl -= 1
829 rx = self.send_and_expect(self.pg1, p6*1, self.pg0)
831 self.validate(p[1], p4_translated)
833 # Send bad IPv6 source port, ensure translated IPv4 not received
834 payload = TCP(sport=0xdcba, dport=80)
835 p6 = (p_ether6 / p_ip6 / payload)
836 self.send_and_assert_no_replies(self.pg1, p6*1)
838 def test_map_t_pre_resolve(self):
839 """ MAP-T pre-resolve"""
841 # Add a domain that maps from pg0 to pg1
842 map_dst = '2001:db8::/32'
843 map_src = '1234:5678:90ab:cdef::/64'
844 ip4_pfx = '192.168.0.0/24'
845 tag = 'MAP-T Test Domain.'
847 self.vapi.map_add_domain(ip6_prefix=map_dst,
856 # Enable MAP-T on interfaces.
857 self.vapi.map_if_enable_disable(is_enable=1,
858 sw_if_index=self.pg0.sw_if_index,
860 self.vapi.map_if_enable_disable(is_enable=1,
861 sw_if_index=self.pg1.sw_if_index,
864 # Enable pre-resolve option
865 self.vapi.map_param_add_del_pre_resolve(ip4_nh_address="10.1.2.3",
866 ip6_nh_address="4001::1",
869 # Add a route to 4001::1 and expect the translated traffic to be
870 # sent via that route next-hop.
871 pre_res_route6 = VppIpRoute(self, "4001::1", 128,
872 [VppRoutePath(self.pg1.remote_hosts[2].ip6,
873 self.pg1.sw_if_index)])
874 pre_res_route6.add_vpp_config()
876 # Add a route to 10.1.2.3 and expect the "untranslated" traffic to be
877 # sent via that route next-hop.
878 pre_res_route4 = VppIpRoute(self, "10.1.2.3", 32,
879 [VppRoutePath(self.pg0.remote_hosts[1].ip4,
880 self.pg0.sw_if_index)])
881 pre_res_route4.add_vpp_config()
883 # Send an IPv4 packet that will be translated
884 p_ether = Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
885 p_ip4 = IP(src=self.pg0.remote_ip4, dst='192.168.0.1')
886 payload = TCP(sport=0xabcd, dport=0xabcd)
887 p4 = (p_ether / p_ip4 / payload)
889 p6_translated = (IPv6(src="1234:5678:90ab:cdef:ac:1001:200:0",
890 dst="2001:db8:1f0::c0a8:1:f") / payload)
891 p6_translated.hlim -= 1
893 rx = self.send_and_expect(self.pg0, p4*1, self.pg1)
895 self.assertEqual(p[Ether].dst, self.pg1.remote_hosts[2].mac)
896 self.validate(p[1], p6_translated)
898 # Send back an IPv6 packet that will be "untranslated"
899 p_ether6 = Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac)
900 p_ip6 = IPv6(src='2001:db8:1f0::c0a8:1:f',
901 dst='1234:5678:90ab:cdef:ac:1001:200:0')
902 p6 = (p_ether6 / p_ip6 / payload)
904 p4_translated = (IP(src='192.168.0.1',
905 dst=self.pg0.remote_ip4) / payload)
907 p4_translated.ttl -= 1
909 rx = self.send_and_expect(self.pg1, p6*1, self.pg0)
911 self.assertEqual(p[Ether].dst, self.pg0.remote_hosts[1].mac)
912 self.validate(p[1], p4_translated)
914 # Cleanup pre-resolve option
915 self.vapi.map_param_add_del_pre_resolve(ip4_nh_address="10.1.2.3",
916 ip6_nh_address="4001::1",
919 if __name__ == '__main__':
920 unittest.main(testRunner=VppTestRunner)