1 from socket import AF_INET6, inet_ntop, inet_pton
3 from scapy.layers.dhcp6 import (
22 from scapy.layers.inet6 import IPv6, Ether, UDP
23 from scapy.utils6 import in6_mactoifaceid
25 from framework import tag_fixme_vpp_workers
26 from framework import VppTestCase
27 from framework import tag_run_solo
28 from vpp_papi import VppEnum
33 def ip6_normalize(ip6):
34 return inet_ntop(AF_INET6, inet_pton(AF_INET6, ip6))
37 class TestDHCPv6DataPlane(VppTestCase):
38 """DHCPv6 Data Plane Test Case"""
42 super(TestDHCPv6DataPlane, cls).setUpClass()
45 def tearDownClass(cls):
46 super(TestDHCPv6DataPlane, cls).tearDownClass()
49 super(TestDHCPv6DataPlane, self).setUp()
51 self.create_pg_interfaces(range(1))
52 self.interfaces = list(self.pg_interfaces)
53 for i in self.interfaces:
57 self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac)
60 for i in self.interfaces:
63 super(TestDHCPv6DataPlane, self).tearDown()
65 def test_dhcp_ia_na_send_solicit_receive_advertise(self):
66 """Verify DHCPv6 IA NA Solicit packet and Advertise event"""
68 self.vapi.dhcp6_clients_enable_disable(enable=1)
70 self.pg_enable_capture(self.pg_interfaces)
72 address = {"address": "1:2:3::5", "preferred_time": 60, "valid_time": 120}
73 self.vapi.dhcp6_send_client_message(
74 server_index=0xFFFFFFFF,
76 msg_type=VppEnum.vl_api_dhcpv6_msg_type_t.DHCPV6_MSG_API_SOLICIT,
77 sw_if_index=self.pg0.sw_if_index,
81 n_addresses=len([address]),
83 rx_list = self.pg0.get_capture(1)
84 self.assertEqual(len(rx_list), 1)
87 self.assertEqual(packet.haslayer(IPv6), 1)
88 self.assertEqual(packet[IPv6].haslayer(DHCP6_Solicit), 1)
90 client_duid = packet[DHCP6OptClientId].duid
91 trid = packet[DHCP6_Solicit].trid
93 dst = ip6_normalize(packet[IPv6].dst)
94 dst2 = ip6_normalize("ff02::1:2")
95 self.assert_equal(dst, dst2)
96 src = ip6_normalize(packet[IPv6].src)
97 src2 = ip6_normalize(self.pg0.local_ip6_ll)
98 self.assert_equal(src, src2)
99 ia_na = packet[DHCP6OptIA_NA]
100 self.assert_equal(ia_na.T1, 20)
101 self.assert_equal(ia_na.T2, 40)
102 self.assert_equal(len(ia_na.ianaopts), 1)
103 address = ia_na.ianaopts[0]
104 self.assert_equal(address.addr, "1:2:3::5")
105 self.assert_equal(address.preflft, 60)
106 self.assert_equal(address.validlft, 120)
108 self.vapi.want_dhcp6_reply_events(enable_disable=1, pid=os.getpid())
111 ia_na_opts = DHCP6OptIAAddress(addr="7:8::2", preflft=60, validlft=120)
113 Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
115 src=util.mk_ll_addr(self.pg0.remote_mac), dst=self.pg0.local_ip6_ll
117 / UDP(sport=547, dport=546)
118 / DHCP6_Advertise(trid=trid)
119 / DHCP6OptServerId(duid=self.server_duid)
120 / DHCP6OptClientId(duid=client_duid)
121 / DHCP6OptPref(prefval=7)
122 / DHCP6OptStatusCode(statuscode=1)
123 / DHCP6OptIA_NA(iaid=1, T1=20, T2=40, ianaopts=ia_na_opts)
125 self.pg0.add_stream([p])
128 ev = self.vapi.wait_for_event(1, "dhcp6_reply_event")
130 self.assert_equal(ev.preference, 7)
131 self.assert_equal(ev.status_code, 1)
132 self.assert_equal(ev.T1, 20)
133 self.assert_equal(ev.T2, 40)
135 reported_address = ev.addresses[0]
136 address = ia_na_opts.getfieldval("addr")
137 self.assert_equal(str(reported_address.address), address)
139 reported_address.preferred_time, ia_na_opts.getfieldval("preflft")
142 reported_address.valid_time, ia_na_opts.getfieldval("validlft")
146 self.vapi.want_dhcp6_reply_events(enable_disable=0)
147 self.vapi.dhcp6_clients_enable_disable(enable=0)
149 def test_dhcp_pd_send_solicit_receive_advertise(self):
150 """Verify DHCPv6 PD Solicit packet and Advertise event"""
152 self.vapi.dhcp6_clients_enable_disable(enable=1)
154 self.pg_enable_capture(self.pg_interfaces)
158 "prefix": {"address": "1:2:3::", "len": 50},
159 "preferred_time": 60,
163 self.vapi.dhcp6_pd_send_client_message(
164 server_index=0xFFFFFFFF,
166 msg_type=VppEnum.vl_api_dhcpv6_msg_type_t.DHCPV6_MSG_API_SOLICIT,
167 sw_if_index=self.pg0.sw_if_index,
171 n_prefixes=len(prefixes),
173 rx_list = self.pg0.get_capture(1)
174 self.assertEqual(len(rx_list), 1)
177 self.assertEqual(packet.haslayer(IPv6), 1)
178 self.assertEqual(packet[IPv6].haslayer(DHCP6_Solicit), 1)
180 client_duid = packet[DHCP6OptClientId].duid
181 trid = packet[DHCP6_Solicit].trid
183 dst = ip6_normalize(packet[IPv6].dst)
184 dst2 = ip6_normalize("ff02::1:2")
185 self.assert_equal(dst, dst2)
186 src = ip6_normalize(packet[IPv6].src)
187 src2 = ip6_normalize(self.pg0.local_ip6_ll)
188 self.assert_equal(src, src2)
189 ia_pd = packet[DHCP6OptIA_PD]
190 self.assert_equal(ia_pd.T1, 20)
191 self.assert_equal(ia_pd.T2, 40)
192 self.assert_equal(len(ia_pd.iapdopt), 1)
193 prefix = ia_pd.iapdopt[0]
194 self.assert_equal(prefix.prefix, "1:2:3::")
195 self.assert_equal(prefix.plen, 50)
196 self.assert_equal(prefix.preflft, 60)
197 self.assert_equal(prefix.validlft, 120)
199 self.vapi.want_dhcp6_pd_reply_events(enable_disable=1, pid=os.getpid())
202 ia_pd_opts = DHCP6OptIAPrefix(
203 prefix="7:8::", plen=56, preflft=60, validlft=120
206 Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
208 src=util.mk_ll_addr(self.pg0.remote_mac), dst=self.pg0.local_ip6_ll
210 / UDP(sport=547, dport=546)
211 / DHCP6_Advertise(trid=trid)
212 / DHCP6OptServerId(duid=self.server_duid)
213 / DHCP6OptClientId(duid=client_duid)
214 / DHCP6OptPref(prefval=7)
215 / DHCP6OptStatusCode(statuscode=1)
216 / DHCP6OptIA_PD(iaid=1, T1=20, T2=40, iapdopt=ia_pd_opts)
218 self.pg0.add_stream([p])
221 ev = self.vapi.wait_for_event(1, "dhcp6_pd_reply_event")
223 self.assert_equal(ev.preference, 7)
224 self.assert_equal(ev.status_code, 1)
225 self.assert_equal(ev.T1, 20)
226 self.assert_equal(ev.T2, 40)
228 reported_prefix = ev.prefixes[0]
229 prefix = ia_pd_opts.getfieldval("prefix")
230 self.assert_equal(str(reported_prefix.prefix).split("/")[0], prefix)
232 int(str(reported_prefix.prefix).split("/")[1]),
233 ia_pd_opts.getfieldval("plen"),
236 reported_prefix.preferred_time, ia_pd_opts.getfieldval("preflft")
239 reported_prefix.valid_time, ia_pd_opts.getfieldval("validlft")
243 self.vapi.want_dhcp6_pd_reply_events(enable_disable=0)
244 self.vapi.dhcp6_clients_enable_disable(enable=0)
248 class TestDHCPv6IANAControlPlane(VppTestCase):
249 """DHCPv6 IA NA Control Plane Test Case"""
253 super(TestDHCPv6IANAControlPlane, cls).setUpClass()
256 def tearDownClass(cls):
257 super(TestDHCPv6IANAControlPlane, cls).tearDownClass()
260 super(TestDHCPv6IANAControlPlane, self).setUp()
262 self.create_pg_interfaces(range(1))
263 self.interfaces = list(self.pg_interfaces)
264 for i in self.interfaces:
267 self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac)
268 self.client_duid = None
272 fib = self.vapi.ip_route_dump(0, True)
273 self.initial_addresses = set(self.get_interface_addresses(fib, self.pg0))
275 self.pg_enable_capture(self.pg_interfaces)
278 self.vapi.dhcp6_client_enable_disable(
279 sw_if_index=self.pg0.sw_if_index, enable=1
283 self.vapi.dhcp6_client_enable_disable(
284 sw_if_index=self.pg0.sw_if_index, enable=0
287 for i in self.interfaces:
290 super(TestDHCPv6IANAControlPlane, self).tearDown()
293 def get_interface_addresses(fib, pg):
296 if entry.route.prefix.prefixlen == 128:
297 path = entry.route.paths[0]
298 if path.sw_if_index == pg.sw_if_index:
299 lst.append(str(entry.route.prefix.network_address))
302 def get_addresses(self):
303 fib = self.vapi.ip_route_dump(0, True)
304 addresses = set(self.get_interface_addresses(fib, self.pg0))
305 return addresses.difference(self.initial_addresses)
307 def validate_duid_ll(self, duid):
310 def validate_packet(self, packet, msg_type, is_resend=False):
312 self.assertEqual(packet.haslayer(msg_type), 1)
313 client_duid = packet[DHCP6OptClientId].duid
314 if self.client_duid is None:
315 self.client_duid = client_duid
316 self.validate_duid_ll(client_duid)
318 self.assertEqual(self.client_duid, client_duid)
319 if msg_type != DHCP6_Solicit and msg_type != DHCP6_Rebind:
320 server_duid = packet[DHCP6OptServerId].duid
321 self.assertEqual(server_duid, self.server_duid)
323 self.assertEqual(self.trid, packet[msg_type].trid)
325 self.trid = packet[msg_type].trid
328 self.assertEqual(ip.dst, "ff02::1:2")
329 self.assertEqual(udp.sport, 546)
330 self.assertEqual(udp.dport, 547)
331 dhcpv6 = packet[msg_type]
332 elapsed_time = dhcpv6[DHCP6OptElapsedTime]
334 self.assertNotEqual(elapsed_time.elapsedtime, 0)
336 self.assertEqual(elapsed_time.elapsedtime, 0)
337 except BaseException:
341 def wait_for_packet(self, msg_type, timeout=None, is_resend=False):
344 rx_list = self.pg0.get_capture(1, timeout=timeout)
346 self.validate_packet(packet, msg_type, is_resend=is_resend)
348 def wait_for_solicit(self, timeout=None, is_resend=False):
349 self.wait_for_packet(DHCP6_Solicit, timeout, is_resend=is_resend)
351 def wait_for_request(self, timeout=None, is_resend=False):
352 self.wait_for_packet(DHCP6_Request, timeout, is_resend=is_resend)
354 def wait_for_renew(self, timeout=None, is_resend=False):
355 self.wait_for_packet(DHCP6_Renew, timeout, is_resend=is_resend)
357 def wait_for_rebind(self, timeout=None, is_resend=False):
358 self.wait_for_packet(DHCP6_Rebind, timeout, is_resend=is_resend)
360 def wait_for_release(self, timeout=None, is_resend=False):
361 self.wait_for_packet(DHCP6_Release, timeout, is_resend=is_resend)
363 def send_packet(self, msg_type, t1=None, t2=None, ianaopts=None):
369 opt_ia_na = DHCP6OptIA_NA(iaid=1, T1=t1, T2=t2)
371 opt_ia_na = DHCP6OptIA_NA(iaid=1, T1=t1, T2=t2, ianaopts=ianaopts)
373 Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
374 / IPv6(src=util.mk_ll_addr(self.pg0.remote_mac), dst=self.pg0.local_ip6_ll)
375 / UDP(sport=547, dport=546)
376 / msg_type(trid=self.trid)
377 / DHCP6OptServerId(duid=self.server_duid)
378 / DHCP6OptClientId(duid=self.client_duid)
381 self.pg0.add_stream([p])
382 self.pg_enable_capture(self.pg_interfaces)
385 def send_advertise(self, t1=None, t2=None, ianaopts=None):
386 self.send_packet(DHCP6_Advertise, t1, t2, ianaopts)
388 def send_reply(self, t1=None, t2=None, ianaopts=None):
389 self.send_packet(DHCP6_Reply, t1, t2, ianaopts)
391 def test_T1_and_T2_timeouts(self):
392 """Test T1 and T2 timeouts"""
394 self.wait_for_solicit()
395 self.send_advertise()
396 self.wait_for_request()
401 self.wait_for_renew()
403 self.pg_enable_capture(self.pg_interfaces)
407 self.wait_for_rebind()
409 def test_addresses(self):
410 """Test handling of addresses"""
412 ia_na_opts = DHCP6OptIAAddress(addr="7:8::2", preflft=1, validlft=2)
414 self.wait_for_solicit()
415 self.send_advertise(t1=20, t2=40, ianaopts=ia_na_opts)
416 self.wait_for_request()
417 self.send_reply(t1=20, t2=40, ianaopts=ia_na_opts)
420 # check FIB for new address
421 new_addresses = self.get_addresses()
422 self.assertEqual(len(new_addresses), 1)
423 addr = list(new_addresses)[0]
424 self.assertEqual(addr, "7:8::2")
428 # check that the address is deleted
429 fib = self.vapi.ip_route_dump(0, True)
430 addresses = set(self.get_interface_addresses(fib, self.pg0))
431 new_addresses = addresses.difference(self.initial_addresses)
432 self.assertEqual(len(new_addresses), 0)
434 def test_sending_client_messages_solicit(self):
435 """VPP receives messages from DHCPv6 client"""
437 self.wait_for_solicit()
438 self.send_packet(DHCP6_Solicit)
439 self.send_packet(DHCP6_Request)
440 self.send_packet(DHCP6_Renew)
441 self.send_packet(DHCP6_Rebind)
443 self.wait_for_solicit(is_resend=True)
445 def test_sending_inappropriate_packets(self):
446 """Server sends messages with inappropriate message types"""
448 self.wait_for_solicit()
450 self.wait_for_solicit(is_resend=True)
451 self.send_advertise()
452 self.wait_for_request()
453 self.send_advertise()
454 self.wait_for_request(is_resend=True)
456 self.wait_for_renew()
458 def test_no_address_available_in_advertise(self):
459 """Advertise message contains NoAddrsAvail status code"""
461 self.wait_for_solicit()
462 noavail = DHCP6OptStatusCode(statuscode=2) # NoAddrsAvail
463 self.send_advertise(ianaopts=noavail)
464 self.wait_for_solicit(is_resend=True)
466 def test_preferred_greater_than_valid_lifetime(self):
467 """Preferred lifetime is greater than valid lifetime"""
469 self.wait_for_solicit()
470 self.send_advertise()
471 self.wait_for_request()
472 ia_na_opts = DHCP6OptIAAddress(addr="7:8::2", preflft=4, validlft=3)
473 self.send_reply(ianaopts=ia_na_opts)
477 # check FIB contains no addresses
478 fib = self.vapi.ip_route_dump(0, True)
479 addresses = set(self.get_interface_addresses(fib, self.pg0))
480 new_addresses = addresses.difference(self.initial_addresses)
481 self.assertEqual(len(new_addresses), 0)
483 def test_T1_greater_than_T2(self):
484 """T1 is greater than T2"""
486 self.wait_for_solicit()
487 self.send_advertise()
488 self.wait_for_request()
489 ia_na_opts = DHCP6OptIAAddress(addr="7:8::2", preflft=4, validlft=8)
490 self.send_reply(t1=80, t2=40, ianaopts=ia_na_opts)
494 # check FIB contains no addresses
495 fib = self.vapi.ip_route_dump(0, True)
496 addresses = set(self.get_interface_addresses(fib, self.pg0))
497 new_addresses = addresses.difference(self.initial_addresses)
498 self.assertEqual(len(new_addresses), 0)
501 @tag_fixme_vpp_workers
502 class TestDHCPv6PDControlPlane(VppTestCase):
503 """DHCPv6 PD Control Plane Test Case"""
507 super(TestDHCPv6PDControlPlane, cls).setUpClass()
510 def tearDownClass(cls):
511 super(TestDHCPv6PDControlPlane, cls).tearDownClass()
514 super(TestDHCPv6PDControlPlane, self).setUp()
516 self.create_pg_interfaces(range(2))
517 self.interfaces = list(self.pg_interfaces)
518 for i in self.interfaces:
521 self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac)
522 self.client_duid = None
526 fib = self.vapi.ip_route_dump(0, True)
527 self.initial_addresses = set(self.get_interface_addresses(fib, self.pg1))
529 self.pg_enable_capture(self.pg_interfaces)
532 self.prefix_group = "my-pd-prefix-group"
534 self.vapi.dhcp6_pd_client_enable_disable(
535 enable=1, sw_if_index=self.pg0.sw_if_index, prefix_group=self.prefix_group
539 self.vapi.dhcp6_pd_client_enable_disable(self.pg0.sw_if_index, enable=0)
541 for i in self.interfaces:
544 super(TestDHCPv6PDControlPlane, self).tearDown()
547 def get_interface_addresses(fib, pg):
550 if entry.route.prefix.prefixlen == 128:
551 path = entry.route.paths[0]
552 if path.sw_if_index == pg.sw_if_index:
553 lst.append(str(entry.route.prefix.network_address))
556 def get_addresses(self):
557 fib = self.vapi.ip_route_dump(0, True)
558 addresses = set(self.get_interface_addresses(fib, self.pg1))
559 return addresses.difference(self.initial_addresses)
561 def validate_duid_ll(self, duid):
564 def validate_packet(self, packet, msg_type, is_resend=False):
566 self.assertEqual(packet.haslayer(msg_type), 1)
567 client_duid = packet[DHCP6OptClientId].duid
568 if self.client_duid is None:
569 self.client_duid = client_duid
570 self.validate_duid_ll(client_duid)
572 self.assertEqual(self.client_duid, client_duid)
573 if msg_type != DHCP6_Solicit and msg_type != DHCP6_Rebind:
574 server_duid = packet[DHCP6OptServerId].duid
575 self.assertEqual(server_duid, self.server_duid)
577 self.assertEqual(self.trid, packet[msg_type].trid)
579 self.trid = packet[msg_type].trid
582 self.assertEqual(ip.dst, "ff02::1:2")
583 self.assertEqual(udp.sport, 546)
584 self.assertEqual(udp.dport, 547)
585 dhcpv6 = packet[msg_type]
586 elapsed_time = dhcpv6[DHCP6OptElapsedTime]
588 self.assertNotEqual(elapsed_time.elapsedtime, 0)
590 self.assertEqual(elapsed_time.elapsedtime, 0)
591 except BaseException:
595 def wait_for_packet(self, msg_type, timeout=None, is_resend=False):
598 rx_list = self.pg0.get_capture(1, timeout=timeout)
600 self.validate_packet(packet, msg_type, is_resend=is_resend)
602 def wait_for_solicit(self, timeout=None, is_resend=False):
603 self.wait_for_packet(DHCP6_Solicit, timeout, is_resend=is_resend)
605 def wait_for_request(self, timeout=None, is_resend=False):
606 self.wait_for_packet(DHCP6_Request, timeout, is_resend=is_resend)
608 def wait_for_renew(self, timeout=None, is_resend=False):
609 self.wait_for_packet(DHCP6_Renew, timeout, is_resend=is_resend)
611 def wait_for_rebind(self, timeout=None, is_resend=False):
612 self.wait_for_packet(DHCP6_Rebind, timeout, is_resend=is_resend)
614 def wait_for_release(self, timeout=None, is_resend=False):
615 self.wait_for_packet(DHCP6_Release, timeout, is_resend=is_resend)
617 def send_packet(self, msg_type, t1=None, t2=None, iapdopt=None):
623 opt_ia_pd = DHCP6OptIA_PD(iaid=1, T1=t1, T2=t2)
625 opt_ia_pd = DHCP6OptIA_PD(iaid=1, T1=t1, T2=t2, iapdopt=iapdopt)
627 Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
628 / IPv6(src=util.mk_ll_addr(self.pg0.remote_mac), dst=self.pg0.local_ip6_ll)
629 / UDP(sport=547, dport=546)
630 / msg_type(trid=self.trid)
631 / DHCP6OptServerId(duid=self.server_duid)
632 / DHCP6OptClientId(duid=self.client_duid)
635 self.pg0.add_stream([p])
636 self.pg_enable_capture(self.pg_interfaces)
639 def send_advertise(self, t1=None, t2=None, iapdopt=None):
640 self.send_packet(DHCP6_Advertise, t1, t2, iapdopt)
642 def send_reply(self, t1=None, t2=None, iapdopt=None):
643 self.send_packet(DHCP6_Reply, t1, t2, iapdopt)
645 def test_T1_and_T2_timeouts(self):
646 """Test T1 and T2 timeouts"""
648 self.wait_for_solicit()
649 self.send_advertise()
650 self.wait_for_request()
655 self.wait_for_renew()
657 self.pg_enable_capture(self.pg_interfaces)
661 self.wait_for_rebind()
663 def test_prefixes(self):
664 """Test handling of prefixes"""
666 address1 = "::2:0:0:0:405/60"
667 address2 = "::76:0:0:0:406/62"
669 self.vapi.ip6_add_del_address_using_prefix(
670 sw_if_index=self.pg1.sw_if_index,
671 address_with_prefix=address1,
672 prefix_group=self.prefix_group,
675 ia_pd_opts = DHCP6OptIAPrefix(
676 prefix="7:8::", plen=56, preflft=2, validlft=3
679 self.wait_for_solicit()
680 self.send_advertise(t1=20, t2=40, iapdopt=ia_pd_opts)
681 self.wait_for_request()
682 self.send_reply(t1=20, t2=40, iapdopt=ia_pd_opts)
685 # check FIB for new address
686 new_addresses = self.get_addresses()
687 self.assertEqual(len(new_addresses), 1)
688 addr = list(new_addresses)[0]
689 self.assertEqual(addr, "7:8:0:2::405")
693 self.vapi.ip6_add_del_address_using_prefix(
694 sw_if_index=self.pg1.sw_if_index,
695 address_with_prefix=address2,
696 prefix_group=self.prefix_group,
701 # check FIB contains 2 addresses
702 fib = self.vapi.ip_route_dump(0, True)
703 addresses = set(self.get_interface_addresses(fib, self.pg1))
704 new_addresses = addresses.difference(self.initial_addresses)
705 self.assertEqual(len(new_addresses), 2)
706 addr1 = list(new_addresses)[0]
707 addr2 = list(new_addresses)[1]
708 if addr1 == "7:8:0:76::406":
709 addr1, addr2 = addr2, addr1
710 self.assertEqual(addr1, "7:8:0:2::405")
711 self.assertEqual(addr2, "7:8:0:76::406")
715 # check that the addresses are deleted
716 fib = self.vapi.ip_route_dump(0, True)
717 addresses = set(self.get_interface_addresses(fib, self.pg1))
718 new_addresses = addresses.difference(self.initial_addresses)
719 self.assertEqual(len(new_addresses), 0)
722 if address1 is not None:
723 self.vapi.ip6_add_del_address_using_prefix(
724 sw_if_index=self.pg1.sw_if_index,
725 address_with_prefix=address1,
726 prefix_group=self.prefix_group,
729 if address2 is not None:
730 self.vapi.ip6_add_del_address_using_prefix(
731 sw_if_index=self.pg1.sw_if_index,
732 address_with_prefix=address2,
733 prefix_group=self.prefix_group,
737 def test_sending_client_messages_solicit(self):
738 """VPP receives messages from DHCPv6 client"""
740 self.wait_for_solicit()
741 self.send_packet(DHCP6_Solicit)
742 self.send_packet(DHCP6_Request)
743 self.send_packet(DHCP6_Renew)
744 self.send_packet(DHCP6_Rebind)
746 self.wait_for_solicit(is_resend=True)
748 def test_sending_inappropriate_packets(self):
749 """Server sends messages with inappropriate message types"""
751 self.wait_for_solicit()
753 self.wait_for_solicit(is_resend=True)
754 self.send_advertise()
755 self.wait_for_request()
756 self.send_advertise()
757 self.wait_for_request(is_resend=True)
759 self.wait_for_renew()
761 def test_no_prefix_available_in_advertise(self):
762 """Advertise message contains NoPrefixAvail status code"""
764 self.wait_for_solicit()
765 noavail = DHCP6OptStatusCode(statuscode=6) # NoPrefixAvail
766 self.send_advertise(iapdopt=noavail)
767 self.wait_for_solicit(is_resend=True)
769 def test_preferred_greater_than_valid_lifetime(self):
770 """Preferred lifetime is greater than valid lifetime"""
772 address1 = "::2:0:0:0:405/60"
774 self.vapi.ip6_add_del_address_using_prefix(
775 sw_if_index=self.pg1.sw_if_index,
776 address_with_prefix=address1,
777 prefix_group=self.prefix_group,
780 self.wait_for_solicit()
781 self.send_advertise()
782 self.wait_for_request()
783 ia_pd_opts = DHCP6OptIAPrefix(
784 prefix="7:8::", plen=56, preflft=4, validlft=3
786 self.send_reply(iapdopt=ia_pd_opts)
790 # check FIB contains no addresses
791 fib = self.vapi.ip_route_dump(0, True)
792 addresses = set(self.get_interface_addresses(fib, self.pg1))
793 new_addresses = addresses.difference(self.initial_addresses)
794 self.assertEqual(len(new_addresses), 0)
797 self.vapi.ip6_add_del_address_using_prefix(
798 sw_if_index=self.pg1.sw_if_index,
799 address_with_prefix=address1,
800 prefix_group=self.prefix_group,
804 def test_T1_greater_than_T2(self):
805 """T1 is greater than T2"""
807 address1 = "::2:0:0:0:405/60"
809 self.vapi.ip6_add_del_address_using_prefix(
810 sw_if_index=self.pg1.sw_if_index,
811 address_with_prefix=address1,
812 prefix_group=self.prefix_group,
815 self.wait_for_solicit()
816 self.send_advertise()
817 self.wait_for_request()
818 ia_pd_opts = DHCP6OptIAPrefix(
819 prefix="7:8::", plen=56, preflft=4, validlft=8
821 self.send_reply(t1=80, t2=40, iapdopt=ia_pd_opts)
825 # check FIB contains no addresses
826 fib = self.vapi.ip_route_dump(0, True)
827 addresses = set(self.get_interface_addresses(fib, self.pg1))
828 new_addresses = addresses.difference(self.initial_addresses)
829 self.assertEqual(len(new_addresses), 0)
832 self.vapi.ip6_add_del_address_using_prefix(
833 sw_if_index=self.pg1.sw_if_index,
834 prefix_group=self.prefix_group,
835 address_with_prefix=address1,