1 from socket import AF_INET6
3 from scapy.layers.dhcp6 import DHCP6_Advertise, DHCP6OptClientId, \
4 DHCP6OptStatusCode, DHCP6OptPref, DHCP6OptIA_PD, DHCP6OptIAPrefix, \
5 DHCP6OptServerId, DHCP6_Solicit, DHCP6_Reply, DHCP6_Request, DHCP6_Renew, \
6 DHCP6_Rebind, DUID_LL, DHCP6_Release, DHCP6OptElapsedTime, DHCP6OptIA_NA, \
8 from scapy.layers.inet6 import IPv6, Ether, UDP
9 from scapy.utils6 import in6_mactoifaceid
10 from scapy.utils import inet_ntop, inet_pton
12 from framework import VppTestCase
16 def ip6_normalize(ip6):
17 return inet_ntop(AF_INET6, inet_pton(AF_INET6, ip6))
20 class TestDHCPv6DataPlane(VppTestCase):
21 """ DHCPv6 Data Plane Test Case """
25 super(TestDHCPv6DataPlane, cls).setUpClass()
28 def tearDownClass(cls):
29 super(TestDHCPv6DataPlane, cls).tearDownClass()
32 super(TestDHCPv6DataPlane, self).setUp()
34 self.create_pg_interfaces(range(1))
35 self.interfaces = list(self.pg_interfaces)
36 for i in self.interfaces:
40 self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac)
43 for i in self.interfaces:
46 super(TestDHCPv6DataPlane, self).tearDown()
48 def test_dhcp_ia_na_send_solicit_receive_advertise(self):
49 """ Verify DHCPv6 IA NA Solicit packet and Advertise event """
51 self.vapi.dhcp6_clients_enable_disable()
53 self.pg_enable_capture(self.pg_interfaces)
55 address_bin = '\00\01\00\02\00\03' + '\00' * 8 + '\00\05'
56 address = {'address': address_bin,
59 self.vapi.dhcp6_send_client_message(msg_type=1,
60 sw_if_index=self.pg0.sw_if_index,
61 T1=20, T2=40, addresses=[address],
62 n_addresses=len([address]))
63 rx_list = self.pg0.get_capture(1)
64 self.assertEqual(len(rx_list), 1)
67 self.assertEqual(packet.haslayer(IPv6), 1)
68 self.assertEqual(packet[IPv6].haslayer(DHCP6_Solicit), 1)
70 client_duid = packet[DHCP6OptClientId].duid
71 trid = packet[DHCP6_Solicit].trid
73 dst = ip6_normalize(packet[IPv6].dst)
74 dst2 = ip6_normalize("ff02::1:2")
75 self.assert_equal(dst, dst2)
76 src = ip6_normalize(packet[IPv6].src)
77 src2 = ip6_normalize(self.pg0.local_ip6_ll)
78 self.assert_equal(src, src2)
79 ia_na = packet[DHCP6OptIA_NA]
80 self.assert_equal(ia_na.T1, 20)
81 self.assert_equal(ia_na.T2, 40)
82 self.assert_equal(len(ia_na.ianaopts), 1)
83 address = ia_na.ianaopts[0]
84 self.assert_equal(address.addr, '1:2:3::5')
85 self.assert_equal(address.preflft, 60)
86 self.assert_equal(address.validlft, 120)
88 self.vapi.want_dhcp6_reply_events()
91 ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=60,
93 p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
94 IPv6(src=util.mk_ll_addr(self.pg0.remote_mac),
95 dst=self.pg0.local_ip6_ll) /
96 UDP(sport=547, dport=546) /
97 DHCP6_Advertise(trid=trid) /
98 DHCP6OptServerId(duid=self.server_duid) /
99 DHCP6OptClientId(duid=client_duid) /
100 DHCP6OptPref(prefval=7) /
101 DHCP6OptStatusCode(statuscode=1) /
102 DHCP6OptIA_NA(iaid=1, T1=20, T2=40, ianaopts=ia_na_opts)
104 self.pg0.add_stream([p])
107 ev = self.vapi.wait_for_event(1, "dhcp6_reply_event")
109 self.assert_equal(ev.preference, 7)
110 self.assert_equal(ev.status_code, 1)
111 self.assert_equal(ev.T1, 20)
112 self.assert_equal(ev.T2, 40)
114 reported_address = ev.addresses[0]
115 address = inet_pton(AF_INET6, ia_na_opts.getfieldval("addr"))
116 self.assert_equal(reported_address.address, address)
117 self.assert_equal(reported_address.preferred_time,
118 ia_na_opts.getfieldval("preflft"))
119 self.assert_equal(reported_address.valid_time,
120 ia_na_opts.getfieldval("validlft"))
123 self.vapi.want_dhcp6_reply_events(enable_disable=0)
125 def test_dhcp_pd_send_solicit_receive_advertise(self):
126 """ Verify DHCPv6 PD Solicit packet and Advertise event """
128 self.vapi.dhcp6_clients_enable_disable()
130 self.pg_enable_capture(self.pg_interfaces)
132 prefix_bin = '\00\01\00\02\00\03' + '\00' * 10
133 prefix = {'prefix': prefix_bin,
135 'preferred_time': 60,
137 self.vapi.dhcp6_pd_send_client_message(1, self.pg0.sw_if_index,
138 T1=20, T2=40, prefixes=[prefix])
139 rx_list = self.pg0.get_capture(1)
140 self.assertEqual(len(rx_list), 1)
143 self.assertEqual(packet.haslayer(IPv6), 1)
144 self.assertEqual(packet[IPv6].haslayer(DHCP6_Solicit), 1)
146 client_duid = packet[DHCP6OptClientId].duid
147 trid = packet[DHCP6_Solicit].trid
149 dst = ip6_normalize(packet[IPv6].dst)
150 dst2 = ip6_normalize("ff02::1:2")
151 self.assert_equal(dst, dst2)
152 src = ip6_normalize(packet[IPv6].src)
153 src2 = ip6_normalize(self.pg0.local_ip6_ll)
154 self.assert_equal(src, src2)
155 ia_pd = packet[DHCP6OptIA_PD]
156 self.assert_equal(ia_pd.T1, 20)
157 self.assert_equal(ia_pd.T2, 40)
158 self.assert_equal(len(ia_pd.iapdopt), 1)
159 prefix = ia_pd.iapdopt[0]
160 self.assert_equal(prefix.prefix, '1:2:3::')
161 self.assert_equal(prefix.plen, 50)
162 self.assert_equal(prefix.preflft, 60)
163 self.assert_equal(prefix.validlft, 120)
165 self.vapi.want_dhcp6_pd_reply_events()
168 ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=60,
170 p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
171 IPv6(src=util.mk_ll_addr(self.pg0.remote_mac),
172 dst=self.pg0.local_ip6_ll) /
173 UDP(sport=547, dport=546) /
174 DHCP6_Advertise(trid=trid) /
175 DHCP6OptServerId(duid=self.server_duid) /
176 DHCP6OptClientId(duid=client_duid) /
177 DHCP6OptPref(prefval=7) /
178 DHCP6OptStatusCode(statuscode=1) /
179 DHCP6OptIA_PD(iaid=1, T1=20, T2=40, iapdopt=ia_pd_opts)
181 self.pg0.add_stream([p])
184 ev = self.vapi.wait_for_event(1, "dhcp6_pd_reply_event")
186 self.assert_equal(ev.preference, 7)
187 self.assert_equal(ev.status_code, 1)
188 self.assert_equal(ev.T1, 20)
189 self.assert_equal(ev.T2, 40)
191 reported_prefix = ev.prefixes[0]
192 prefix = inet_pton(AF_INET6, ia_pd_opts.getfieldval("prefix"))
193 self.assert_equal(reported_prefix.prefix, prefix)
194 self.assert_equal(reported_prefix.prefix_length,
195 ia_pd_opts.getfieldval("plen"))
196 self.assert_equal(reported_prefix.preferred_time,
197 ia_pd_opts.getfieldval("preflft"))
198 self.assert_equal(reported_prefix.valid_time,
199 ia_pd_opts.getfieldval("validlft"))
202 self.vapi.want_dhcp6_pd_reply_events(enable_disable=0)
205 class TestDHCPv6IANAControlPlane(VppTestCase):
206 """ DHCPv6 IA NA Control Plane Test Case """
210 super(TestDHCPv6IANAControlPlane, cls).setUpClass()
213 def tearDownClass(cls):
214 super(TestDHCPv6IANAControlPlane, cls).tearDownClass()
217 super(TestDHCPv6IANAControlPlane, self).setUp()
219 self.create_pg_interfaces(range(1))
220 self.interfaces = list(self.pg_interfaces)
221 for i in self.interfaces:
224 self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac)
225 self.client_duid = None
229 fib = self.vapi.ip_route_dump(0, True)
230 self.initial_addresses = set(self.get_interface_addresses(fib,
233 self.pg_enable_capture(self.pg_interfaces)
236 self.vapi.dhcp6_client_enable_disable(self.pg0.sw_if_index)
239 self.vapi.dhcp6_client_enable_disable(self.pg0.sw_if_index, enable=0)
241 for i in self.interfaces:
244 super(TestDHCPv6IANAControlPlane, self).tearDown()
247 def get_interface_addresses(fib, pg):
250 if entry.route.prefix.prefixlen == 128:
251 path = entry.route.paths[0]
252 if path.sw_if_index == pg.sw_if_index:
253 lst.append(str(entry.route.prefix.network_address))
256 def get_addresses(self):
257 fib = self.vapi.ip_route_dump(0, True)
258 addresses = set(self.get_interface_addresses(fib, self.pg0))
259 return addresses.difference(self.initial_addresses)
261 def validate_duid_ll(self, duid):
264 def validate_packet(self, packet, msg_type, is_resend=False):
266 self.assertEqual(packet.haslayer(msg_type), 1)
267 client_duid = packet[DHCP6OptClientId].duid
268 if self.client_duid is None:
269 self.client_duid = client_duid
270 self.validate_duid_ll(client_duid)
272 self.assertEqual(self.client_duid, client_duid)
273 if msg_type != DHCP6_Solicit and msg_type != DHCP6_Rebind:
274 server_duid = packet[DHCP6OptServerId].duid
275 self.assertEqual(server_duid, self.server_duid)
277 self.assertEqual(self.trid, packet[msg_type].trid)
279 self.trid = packet[msg_type].trid
282 self.assertEqual(ip.dst, 'ff02::1:2')
283 self.assertEqual(udp.sport, 546)
284 self.assertEqual(udp.dport, 547)
285 dhcpv6 = packet[msg_type]
286 elapsed_time = dhcpv6[DHCP6OptElapsedTime]
288 self.assertNotEqual(elapsed_time.elapsedtime, 0)
290 self.assertEqual(elapsed_time.elapsedtime, 0)
295 def wait_for_packet(self, msg_type, timeout=None, is_resend=False):
298 rx_list = self.pg0.get_capture(1, timeout=timeout)
300 self.validate_packet(packet, msg_type, is_resend=is_resend)
302 def wait_for_solicit(self, timeout=None, is_resend=False):
303 self.wait_for_packet(DHCP6_Solicit, timeout, is_resend=is_resend)
305 def wait_for_request(self, timeout=None, is_resend=False):
306 self.wait_for_packet(DHCP6_Request, timeout, is_resend=is_resend)
308 def wait_for_renew(self, timeout=None, is_resend=False):
309 self.wait_for_packet(DHCP6_Renew, timeout, is_resend=is_resend)
311 def wait_for_rebind(self, timeout=None, is_resend=False):
312 self.wait_for_packet(DHCP6_Rebind, timeout, is_resend=is_resend)
314 def wait_for_release(self, timeout=None, is_resend=False):
315 self.wait_for_packet(DHCP6_Release, timeout, is_resend=is_resend)
317 def send_packet(self, msg_type, t1=None, t2=None, ianaopts=None):
323 opt_ia_na = DHCP6OptIA_NA(iaid=1, T1=t1, T2=t2)
325 opt_ia_na = DHCP6OptIA_NA(iaid=1, T1=t1, T2=t2, ianaopts=ianaopts)
326 p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
327 IPv6(src=util.mk_ll_addr(self.pg0.remote_mac),
328 dst=self.pg0.local_ip6_ll) /
329 UDP(sport=547, dport=546) /
330 msg_type(trid=self.trid) /
331 DHCP6OptServerId(duid=self.server_duid) /
332 DHCP6OptClientId(duid=self.client_duid) /
335 self.pg0.add_stream([p])
336 self.pg_enable_capture(self.pg_interfaces)
339 def send_advertise(self, t1=None, t2=None, ianaopts=None):
340 self.send_packet(DHCP6_Advertise, t1, t2, ianaopts)
342 def send_reply(self, t1=None, t2=None, ianaopts=None):
343 self.send_packet(DHCP6_Reply, t1, t2, ianaopts)
345 def test_T1_and_T2_timeouts(self):
346 """ Test T1 and T2 timeouts """
348 self.wait_for_solicit()
349 self.send_advertise()
350 self.wait_for_request()
355 self.wait_for_renew()
357 self.pg_enable_capture(self.pg_interfaces)
361 self.wait_for_rebind()
363 def test_addresses(self):
364 """ Test handling of addresses """
366 ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=1,
369 self.wait_for_solicit()
370 self.send_advertise(t1=20, t2=40, ianaopts=ia_na_opts)
371 self.wait_for_request()
372 self.send_reply(t1=20, t2=40, ianaopts=ia_na_opts)
375 # check FIB for new address
376 new_addresses = self.get_addresses()
377 self.assertEqual(len(new_addresses), 1)
378 addr = list(new_addresses)[0]
379 self.assertEqual(addr, '7:8::2')
383 # check that the address is deleted
384 fib = self.vapi.ip_route_dump(0, True)
385 addresses = set(self.get_interface_addresses(fib, self.pg0))
386 new_addresses = addresses.difference(self.initial_addresses)
387 self.assertEqual(len(new_addresses), 0)
389 def test_sending_client_messages_solicit(self):
390 """ VPP receives messages from DHCPv6 client """
392 self.wait_for_solicit()
393 self.send_packet(DHCP6_Solicit)
394 self.send_packet(DHCP6_Request)
395 self.send_packet(DHCP6_Renew)
396 self.send_packet(DHCP6_Rebind)
398 self.wait_for_solicit(is_resend=True)
400 def test_sending_inappropriate_packets(self):
401 """ Server sends messages with inappropriate message types """
403 self.wait_for_solicit()
405 self.wait_for_solicit(is_resend=True)
406 self.send_advertise()
407 self.wait_for_request()
408 self.send_advertise()
409 self.wait_for_request(is_resend=True)
411 self.wait_for_renew()
413 def test_no_address_available_in_advertise(self):
414 """ Advertise message contains NoAddrsAvail status code """
416 self.wait_for_solicit()
417 noavail = DHCP6OptStatusCode(statuscode=2) # NoAddrsAvail
418 self.send_advertise(ianaopts=noavail)
419 self.wait_for_solicit(is_resend=True)
421 def test_preferred_greater_than_valid_lifetime(self):
422 """ Preferred lifetime is greater than valid lifetime """
424 self.wait_for_solicit()
425 self.send_advertise()
426 self.wait_for_request()
427 ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=4, validlft=3)
428 self.send_reply(ianaopts=ia_na_opts)
432 # check FIB contains no addresses
433 fib = self.vapi.ip_route_dump(0, True)
434 addresses = set(self.get_interface_addresses(fib, self.pg0))
435 new_addresses = addresses.difference(self.initial_addresses)
436 self.assertEqual(len(new_addresses), 0)
438 def test_T1_greater_than_T2(self):
439 """ T1 is greater than T2 """
441 self.wait_for_solicit()
442 self.send_advertise()
443 self.wait_for_request()
444 ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=4, validlft=8)
445 self.send_reply(t1=80, t2=40, ianaopts=ia_na_opts)
449 # check FIB contains no addresses
450 fib = self.vapi.ip_route_dump(0, True)
451 addresses = set(self.get_interface_addresses(fib, self.pg0))
452 new_addresses = addresses.difference(self.initial_addresses)
453 self.assertEqual(len(new_addresses), 0)
456 class TestDHCPv6PDControlPlane(VppTestCase):
457 """ DHCPv6 PD Control Plane Test Case """
461 super(TestDHCPv6PDControlPlane, cls).setUpClass()
464 def tearDownClass(cls):
465 super(TestDHCPv6PDControlPlane, cls).tearDownClass()
468 super(TestDHCPv6PDControlPlane, self).setUp()
470 self.create_pg_interfaces(range(2))
471 self.interfaces = list(self.pg_interfaces)
472 for i in self.interfaces:
475 self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac)
476 self.client_duid = None
480 fib = self.vapi.ip_route_dump(0, True)
481 self.initial_addresses = set(self.get_interface_addresses(fib,
484 self.pg_enable_capture(self.pg_interfaces)
487 self.prefix_group = 'my-pd-prefix-group'
489 self.vapi.dhcp6_pd_client_enable_disable(
490 self.pg0.sw_if_index,
491 prefix_group=self.prefix_group)
494 self.vapi.dhcp6_pd_client_enable_disable(self.pg0.sw_if_index,
497 for i in self.interfaces:
500 super(TestDHCPv6PDControlPlane, self).tearDown()
503 def get_interface_addresses(fib, pg):
506 if entry.route.prefix.prefixlen == 128:
507 path = entry.route.paths[0]
508 if path.sw_if_index == pg.sw_if_index:
509 lst.append(str(entry.route.prefix.network_address))
512 def get_addresses(self):
513 fib = self.vapi.ip_route_dump(0, True)
514 addresses = set(self.get_interface_addresses(fib, self.pg1))
515 return addresses.difference(self.initial_addresses)
517 def validate_duid_ll(self, duid):
520 def validate_packet(self, packet, msg_type, is_resend=False):
522 self.assertEqual(packet.haslayer(msg_type), 1)
523 client_duid = packet[DHCP6OptClientId].duid
524 if self.client_duid is None:
525 self.client_duid = client_duid
526 self.validate_duid_ll(client_duid)
528 self.assertEqual(self.client_duid, client_duid)
529 if msg_type != DHCP6_Solicit and msg_type != DHCP6_Rebind:
530 server_duid = packet[DHCP6OptServerId].duid
531 self.assertEqual(server_duid, self.server_duid)
533 self.assertEqual(self.trid, packet[msg_type].trid)
535 self.trid = packet[msg_type].trid
538 self.assertEqual(ip.dst, 'ff02::1:2')
539 self.assertEqual(udp.sport, 546)
540 self.assertEqual(udp.dport, 547)
541 dhcpv6 = packet[msg_type]
542 elapsed_time = dhcpv6[DHCP6OptElapsedTime]
544 self.assertNotEqual(elapsed_time.elapsedtime, 0)
546 self.assertEqual(elapsed_time.elapsedtime, 0)
551 def wait_for_packet(self, msg_type, timeout=None, is_resend=False):
554 rx_list = self.pg0.get_capture(1, timeout=timeout)
556 self.validate_packet(packet, msg_type, is_resend=is_resend)
558 def wait_for_solicit(self, timeout=None, is_resend=False):
559 self.wait_for_packet(DHCP6_Solicit, timeout, is_resend=is_resend)
561 def wait_for_request(self, timeout=None, is_resend=False):
562 self.wait_for_packet(DHCP6_Request, timeout, is_resend=is_resend)
564 def wait_for_renew(self, timeout=None, is_resend=False):
565 self.wait_for_packet(DHCP6_Renew, timeout, is_resend=is_resend)
567 def wait_for_rebind(self, timeout=None, is_resend=False):
568 self.wait_for_packet(DHCP6_Rebind, timeout, is_resend=is_resend)
570 def wait_for_release(self, timeout=None, is_resend=False):
571 self.wait_for_packet(DHCP6_Release, timeout, is_resend=is_resend)
573 def send_packet(self, msg_type, t1=None, t2=None, iapdopt=None):
579 opt_ia_pd = DHCP6OptIA_PD(iaid=1, T1=t1, T2=t2)
581 opt_ia_pd = DHCP6OptIA_PD(iaid=1, T1=t1, T2=t2, iapdopt=iapdopt)
582 p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
583 IPv6(src=util.mk_ll_addr(self.pg0.remote_mac),
584 dst=self.pg0.local_ip6_ll) /
585 UDP(sport=547, dport=546) /
586 msg_type(trid=self.trid) /
587 DHCP6OptServerId(duid=self.server_duid) /
588 DHCP6OptClientId(duid=self.client_duid) /
591 self.pg0.add_stream([p])
592 self.pg_enable_capture(self.pg_interfaces)
595 def send_advertise(self, t1=None, t2=None, iapdopt=None):
596 self.send_packet(DHCP6_Advertise, t1, t2, iapdopt)
598 def send_reply(self, t1=None, t2=None, iapdopt=None):
599 self.send_packet(DHCP6_Reply, t1, t2, iapdopt)
601 def test_T1_and_T2_timeouts(self):
602 """ Test T1 and T2 timeouts """
604 self.wait_for_solicit()
605 self.send_advertise()
606 self.wait_for_request()
611 self.wait_for_renew()
613 self.pg_enable_capture(self.pg_interfaces)
617 self.wait_for_rebind()
619 def test_prefixes(self):
620 """ Test handling of prefixes """
625 address_bin_1 = '\x00' * 6 + '\x00\x02' + '\x00' * 6 + '\x04\x05'
626 address_prefix_length_1 = 60
627 self.vapi.ip6_add_del_address_using_prefix(self.pg1.sw_if_index,
629 address_prefix_length_1,
632 ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=2,
635 self.wait_for_solicit()
636 self.send_advertise(t1=20, t2=40, iapdopt=ia_pd_opts)
637 self.wait_for_request()
638 self.send_reply(t1=20, t2=40, iapdopt=ia_pd_opts)
641 # check FIB for new address
642 new_addresses = self.get_addresses()
643 self.assertEqual(len(new_addresses), 1)
644 addr = list(new_addresses)[0]
645 self.assertEqual(addr, '7:8:0:2::405')
649 address_bin_2 = '\x00' * 6 + '\x00\x76' + '\x00' * 6 + '\x04\x06'
650 address_prefix_length_2 = 62
651 self.vapi.ip6_add_del_address_using_prefix(self.pg1.sw_if_index,
653 address_prefix_length_2,
658 # check FIB contains 2 addresses
659 fib = self.vapi.ip_route_dump(0, True)
660 addresses = set(self.get_interface_addresses(fib, self.pg1))
661 new_addresses = addresses.difference(self.initial_addresses)
662 self.assertEqual(len(new_addresses), 2)
663 addr1 = list(new_addresses)[0]
664 addr2 = list(new_addresses)[1]
665 if addr1 == '7:8:0:76::406':
666 addr1, addr2 = addr2, addr1
667 self.assertEqual(addr1, '7:8:0:2::405')
668 self.assertEqual(addr2, '7:8:0:76::406')
672 # check that the addresses are deleted
673 fib = self.vapi.ip_route_dump(0, True)
674 addresses = set(self.get_interface_addresses(fib, self.pg1))
675 new_addresses = addresses.difference(self.initial_addresses)
676 self.assertEqual(len(new_addresses), 0)
679 if address_bin_1 is not None:
680 self.vapi.ip6_add_del_address_using_prefix(
681 self.pg1.sw_if_index, address_bin_1,
682 address_prefix_length_1, self.prefix_group, is_add=0)
683 if address_bin_2 is not None:
684 self.vapi.ip6_add_del_address_using_prefix(
685 self.pg1.sw_if_index, address_bin_2,
686 address_prefix_length_2, self.prefix_group, is_add=0)
688 def test_sending_client_messages_solicit(self):
689 """ VPP receives messages from DHCPv6 client """
691 self.wait_for_solicit()
692 self.send_packet(DHCP6_Solicit)
693 self.send_packet(DHCP6_Request)
694 self.send_packet(DHCP6_Renew)
695 self.send_packet(DHCP6_Rebind)
697 self.wait_for_solicit(is_resend=True)
699 def test_sending_inappropriate_packets(self):
700 """ Server sends messages with inappropriate message types """
702 self.wait_for_solicit()
704 self.wait_for_solicit(is_resend=True)
705 self.send_advertise()
706 self.wait_for_request()
707 self.send_advertise()
708 self.wait_for_request(is_resend=True)
710 self.wait_for_renew()
712 def test_no_prefix_available_in_advertise(self):
713 """ Advertise message contains NoPrefixAvail status code """
715 self.wait_for_solicit()
716 noavail = DHCP6OptStatusCode(statuscode=6) # NoPrefixAvail
717 self.send_advertise(iapdopt=noavail)
718 self.wait_for_solicit(is_resend=True)
720 def test_preferred_greater_than_valid_lifetime(self):
721 """ Preferred lifetime is greater than valid lifetime """
724 address_bin = '\x00' * 6 + '\x00\x02' + '\x00' * 6 + '\x04\x05'
725 address_prefix_length = 60
726 self.vapi.ip6_add_del_address_using_prefix(self.pg1.sw_if_index,
728 address_prefix_length,
731 self.wait_for_solicit()
732 self.send_advertise()
733 self.wait_for_request()
734 ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=4,
736 self.send_reply(iapdopt=ia_pd_opts)
740 # check FIB contains no addresses
741 fib = self.vapi.ip_route_dump(0, True)
742 addresses = set(self.get_interface_addresses(fib, self.pg1))
743 new_addresses = addresses.difference(self.initial_addresses)
744 self.assertEqual(len(new_addresses), 0)
747 self.vapi.ip6_add_del_address_using_prefix(self.pg1.sw_if_index,
749 address_prefix_length,
753 def test_T1_greater_than_T2(self):
754 """ T1 is greater than T2 """
757 address_bin = '\x00' * 6 + '\x00\x02' + '\x00' * 6 + '\x04\x05'
758 address_prefix_length = 60
759 self.vapi.ip6_add_del_address_using_prefix(self.pg1.sw_if_index,
761 address_prefix_length,
764 self.wait_for_solicit()
765 self.send_advertise()
766 self.wait_for_request()
767 ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=4,
769 self.send_reply(t1=80, t2=40, iapdopt=ia_pd_opts)
773 # check FIB contains no addresses
774 fib = self.vapi.ip_route_dump(0, True)
775 addresses = set(self.get_interface_addresses(fib, self.pg1))
776 new_addresses = addresses.difference(self.initial_addresses)
777 self.assertEqual(len(new_addresses), 0)
780 self.vapi.ip6_add_del_address_using_prefix(self.pg1.sw_if_index,
782 address_prefix_length,