1 from socket import AF_INET6, inet_ntop, inet_pton
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
11 from framework import VppTestCase
12 from vpp_papi import VppEnum
17 def ip6_normalize(ip6):
18 return inet_ntop(AF_INET6, inet_pton(AF_INET6, ip6))
21 class TestDHCPv6DataPlane(VppTestCase):
22 """ DHCPv6 Data Plane Test Case """
26 super(TestDHCPv6DataPlane, cls).setUpClass()
29 def tearDownClass(cls):
30 super(TestDHCPv6DataPlane, cls).tearDownClass()
33 super(TestDHCPv6DataPlane, self).setUp()
35 self.create_pg_interfaces(range(1))
36 self.interfaces = list(self.pg_interfaces)
37 for i in self.interfaces:
41 self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac)
44 for i in self.interfaces:
47 super(TestDHCPv6DataPlane, self).tearDown()
49 def test_dhcp_ia_na_send_solicit_receive_advertise(self):
50 """ Verify DHCPv6 IA NA Solicit packet and Advertise event """
52 self.vapi.dhcp6_clients_enable_disable(enable=1)
54 self.pg_enable_capture(self.pg_interfaces)
56 address = {'address': '1:2:3::5',
59 self.vapi.dhcp6_send_client_message(
60 server_index=0xffffffff,
62 msg_type=VppEnum.vl_api_dhcpv6_msg_type_t.DHCPV6_MSG_API_SOLICIT,
63 sw_if_index=self.pg0.sw_if_index,
69 rx_list = self.pg0.get_capture(1)
70 self.assertEqual(len(rx_list), 1)
73 self.assertEqual(packet.haslayer(IPv6), 1)
74 self.assertEqual(packet[IPv6].haslayer(DHCP6_Solicit), 1)
76 client_duid = packet[DHCP6OptClientId].duid
77 trid = packet[DHCP6_Solicit].trid
79 dst = ip6_normalize(packet[IPv6].dst)
80 dst2 = ip6_normalize("ff02::1:2")
81 self.assert_equal(dst, dst2)
82 src = ip6_normalize(packet[IPv6].src)
83 src2 = ip6_normalize(self.pg0.local_ip6_ll)
84 self.assert_equal(src, src2)
85 ia_na = packet[DHCP6OptIA_NA]
86 self.assert_equal(ia_na.T1, 20)
87 self.assert_equal(ia_na.T2, 40)
88 self.assert_equal(len(ia_na.ianaopts), 1)
89 address = ia_na.ianaopts[0]
90 self.assert_equal(address.addr, '1:2:3::5')
91 self.assert_equal(address.preflft, 60)
92 self.assert_equal(address.validlft, 120)
94 self.vapi.want_dhcp6_reply_events(enable_disable=1,
98 ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=60,
100 p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
101 IPv6(src=util.mk_ll_addr(self.pg0.remote_mac),
102 dst=self.pg0.local_ip6_ll) /
103 UDP(sport=547, dport=546) /
104 DHCP6_Advertise(trid=trid) /
105 DHCP6OptServerId(duid=self.server_duid) /
106 DHCP6OptClientId(duid=client_duid) /
107 DHCP6OptPref(prefval=7) /
108 DHCP6OptStatusCode(statuscode=1) /
109 DHCP6OptIA_NA(iaid=1, T1=20, T2=40, ianaopts=ia_na_opts)
111 self.pg0.add_stream([p])
114 ev = self.vapi.wait_for_event(1, "dhcp6_reply_event")
116 self.assert_equal(ev.preference, 7)
117 self.assert_equal(ev.status_code, 1)
118 self.assert_equal(ev.T1, 20)
119 self.assert_equal(ev.T2, 40)
121 reported_address = ev.addresses[0]
122 address = ia_na_opts.getfieldval("addr")
123 self.assert_equal(str(reported_address.address), address)
124 self.assert_equal(reported_address.preferred_time,
125 ia_na_opts.getfieldval("preflft"))
126 self.assert_equal(reported_address.valid_time,
127 ia_na_opts.getfieldval("validlft"))
130 self.vapi.want_dhcp6_reply_events(enable_disable=0)
131 self.vapi.dhcp6_clients_enable_disable(enable=0)
133 def test_dhcp_pd_send_solicit_receive_advertise(self):
134 """ Verify DHCPv6 PD Solicit packet and Advertise event """
136 self.vapi.dhcp6_clients_enable_disable(enable=1)
138 self.pg_enable_capture(self.pg_interfaces)
141 prefix = {'prefix': {'address': '1:2:3::', 'len': 50},
142 'preferred_time': 60,
145 self.vapi.dhcp6_pd_send_client_message(
146 server_index=0xffffffff,
148 msg_type=VppEnum.vl_api_dhcpv6_msg_type_t.DHCPV6_MSG_API_SOLICIT,
149 sw_if_index=self.pg0.sw_if_index,
153 n_prefixes=len(prefixes))
154 rx_list = self.pg0.get_capture(1)
155 self.assertEqual(len(rx_list), 1)
158 self.assertEqual(packet.haslayer(IPv6), 1)
159 self.assertEqual(packet[IPv6].haslayer(DHCP6_Solicit), 1)
161 client_duid = packet[DHCP6OptClientId].duid
162 trid = packet[DHCP6_Solicit].trid
164 dst = ip6_normalize(packet[IPv6].dst)
165 dst2 = ip6_normalize("ff02::1:2")
166 self.assert_equal(dst, dst2)
167 src = ip6_normalize(packet[IPv6].src)
168 src2 = ip6_normalize(self.pg0.local_ip6_ll)
169 self.assert_equal(src, src2)
170 ia_pd = packet[DHCP6OptIA_PD]
171 self.assert_equal(ia_pd.T1, 20)
172 self.assert_equal(ia_pd.T2, 40)
173 self.assert_equal(len(ia_pd.iapdopt), 1)
174 prefix = ia_pd.iapdopt[0]
175 self.assert_equal(prefix.prefix, '1:2:3::')
176 self.assert_equal(prefix.plen, 50)
177 self.assert_equal(prefix.preflft, 60)
178 self.assert_equal(prefix.validlft, 120)
180 self.vapi.want_dhcp6_pd_reply_events(enable_disable=1,
184 ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=60,
186 p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
187 IPv6(src=util.mk_ll_addr(self.pg0.remote_mac),
188 dst=self.pg0.local_ip6_ll) /
189 UDP(sport=547, dport=546) /
190 DHCP6_Advertise(trid=trid) /
191 DHCP6OptServerId(duid=self.server_duid) /
192 DHCP6OptClientId(duid=client_duid) /
193 DHCP6OptPref(prefval=7) /
194 DHCP6OptStatusCode(statuscode=1) /
195 DHCP6OptIA_PD(iaid=1, T1=20, T2=40, iapdopt=ia_pd_opts)
197 self.pg0.add_stream([p])
200 ev = self.vapi.wait_for_event(1, "dhcp6_pd_reply_event")
202 self.assert_equal(ev.preference, 7)
203 self.assert_equal(ev.status_code, 1)
204 self.assert_equal(ev.T1, 20)
205 self.assert_equal(ev.T2, 40)
207 reported_prefix = ev.prefixes[0]
208 prefix = ia_pd_opts.getfieldval("prefix")
210 str(reported_prefix.prefix).split('/')[0], prefix)
211 self.assert_equal(int(str(reported_prefix.prefix).split('/')[1]),
212 ia_pd_opts.getfieldval("plen"))
213 self.assert_equal(reported_prefix.preferred_time,
214 ia_pd_opts.getfieldval("preflft"))
215 self.assert_equal(reported_prefix.valid_time,
216 ia_pd_opts.getfieldval("validlft"))
219 self.vapi.want_dhcp6_pd_reply_events(enable_disable=0)
220 self.vapi.dhcp6_clients_enable_disable(enable=0)
223 class TestDHCPv6IANAControlPlane(VppTestCase):
224 """ DHCPv6 IA NA Control Plane Test Case """
228 super(TestDHCPv6IANAControlPlane, cls).setUpClass()
231 def tearDownClass(cls):
232 super(TestDHCPv6IANAControlPlane, cls).tearDownClass()
235 super(TestDHCPv6IANAControlPlane, self).setUp()
237 self.create_pg_interfaces(range(1))
238 self.interfaces = list(self.pg_interfaces)
239 for i in self.interfaces:
242 self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac)
243 self.client_duid = None
247 fib = self.vapi.ip_route_dump(0, True)
248 self.initial_addresses = set(self.get_interface_addresses(fib,
251 self.pg_enable_capture(self.pg_interfaces)
254 self.vapi.dhcp6_client_enable_disable(sw_if_index=self.pg0.sw_if_index,
258 self.vapi.dhcp6_client_enable_disable(sw_if_index=self.pg0.sw_if_index,
261 for i in self.interfaces:
264 super(TestDHCPv6IANAControlPlane, self).tearDown()
267 def get_interface_addresses(fib, pg):
270 if entry.route.prefix.prefixlen == 128:
271 path = entry.route.paths[0]
272 if path.sw_if_index == pg.sw_if_index:
273 lst.append(str(entry.route.prefix.network_address))
276 def get_addresses(self):
277 fib = self.vapi.ip_route_dump(0, True)
278 addresses = set(self.get_interface_addresses(fib, self.pg0))
279 return addresses.difference(self.initial_addresses)
281 def validate_duid_ll(self, duid):
284 def validate_packet(self, packet, msg_type, is_resend=False):
286 self.assertEqual(packet.haslayer(msg_type), 1)
287 client_duid = packet[DHCP6OptClientId].duid
288 if self.client_duid is None:
289 self.client_duid = client_duid
290 self.validate_duid_ll(client_duid)
292 self.assertEqual(self.client_duid, client_duid)
293 if msg_type != DHCP6_Solicit and msg_type != DHCP6_Rebind:
294 server_duid = packet[DHCP6OptServerId].duid
295 self.assertEqual(server_duid, self.server_duid)
297 self.assertEqual(self.trid, packet[msg_type].trid)
299 self.trid = packet[msg_type].trid
302 self.assertEqual(ip.dst, 'ff02::1:2')
303 self.assertEqual(udp.sport, 546)
304 self.assertEqual(udp.dport, 547)
305 dhcpv6 = packet[msg_type]
306 elapsed_time = dhcpv6[DHCP6OptElapsedTime]
308 self.assertNotEqual(elapsed_time.elapsedtime, 0)
310 self.assertEqual(elapsed_time.elapsedtime, 0)
311 except BaseException:
315 def wait_for_packet(self, msg_type, timeout=None, is_resend=False):
318 rx_list = self.pg0.get_capture(1, timeout=timeout)
320 self.validate_packet(packet, msg_type, is_resend=is_resend)
322 def wait_for_solicit(self, timeout=None, is_resend=False):
323 self.wait_for_packet(DHCP6_Solicit, timeout, is_resend=is_resend)
325 def wait_for_request(self, timeout=None, is_resend=False):
326 self.wait_for_packet(DHCP6_Request, timeout, is_resend=is_resend)
328 def wait_for_renew(self, timeout=None, is_resend=False):
329 self.wait_for_packet(DHCP6_Renew, timeout, is_resend=is_resend)
331 def wait_for_rebind(self, timeout=None, is_resend=False):
332 self.wait_for_packet(DHCP6_Rebind, timeout, is_resend=is_resend)
334 def wait_for_release(self, timeout=None, is_resend=False):
335 self.wait_for_packet(DHCP6_Release, timeout, is_resend=is_resend)
337 def send_packet(self, msg_type, t1=None, t2=None, ianaopts=None):
343 opt_ia_na = DHCP6OptIA_NA(iaid=1, T1=t1, T2=t2)
345 opt_ia_na = DHCP6OptIA_NA(iaid=1, T1=t1, T2=t2, ianaopts=ianaopts)
346 p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
347 IPv6(src=util.mk_ll_addr(self.pg0.remote_mac),
348 dst=self.pg0.local_ip6_ll) /
349 UDP(sport=547, dport=546) /
350 msg_type(trid=self.trid) /
351 DHCP6OptServerId(duid=self.server_duid) /
352 DHCP6OptClientId(duid=self.client_duid) /
355 self.pg0.add_stream([p])
356 self.pg_enable_capture(self.pg_interfaces)
359 def send_advertise(self, t1=None, t2=None, ianaopts=None):
360 self.send_packet(DHCP6_Advertise, t1, t2, ianaopts)
362 def send_reply(self, t1=None, t2=None, ianaopts=None):
363 self.send_packet(DHCP6_Reply, t1, t2, ianaopts)
365 def test_T1_and_T2_timeouts(self):
366 """ Test T1 and T2 timeouts """
368 self.wait_for_solicit()
369 self.send_advertise()
370 self.wait_for_request()
375 self.wait_for_renew()
377 self.pg_enable_capture(self.pg_interfaces)
381 self.wait_for_rebind()
383 def test_addresses(self):
384 """ Test handling of addresses """
386 ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=1,
389 self.wait_for_solicit()
390 self.send_advertise(t1=20, t2=40, ianaopts=ia_na_opts)
391 self.wait_for_request()
392 self.send_reply(t1=20, t2=40, ianaopts=ia_na_opts)
395 # check FIB for new address
396 new_addresses = self.get_addresses()
397 self.assertEqual(len(new_addresses), 1)
398 addr = list(new_addresses)[0]
399 self.assertEqual(addr, '7:8::2')
403 # check that the address is deleted
404 fib = self.vapi.ip_route_dump(0, True)
405 addresses = set(self.get_interface_addresses(fib, self.pg0))
406 new_addresses = addresses.difference(self.initial_addresses)
407 self.assertEqual(len(new_addresses), 0)
409 def test_sending_client_messages_solicit(self):
410 """ VPP receives messages from DHCPv6 client """
412 self.wait_for_solicit()
413 self.send_packet(DHCP6_Solicit)
414 self.send_packet(DHCP6_Request)
415 self.send_packet(DHCP6_Renew)
416 self.send_packet(DHCP6_Rebind)
418 self.wait_for_solicit(is_resend=True)
420 def test_sending_inappropriate_packets(self):
421 """ Server sends messages with inappropriate message types """
423 self.wait_for_solicit()
425 self.wait_for_solicit(is_resend=True)
426 self.send_advertise()
427 self.wait_for_request()
428 self.send_advertise()
429 self.wait_for_request(is_resend=True)
431 self.wait_for_renew()
433 def test_no_address_available_in_advertise(self):
434 """ Advertise message contains NoAddrsAvail status code """
436 self.wait_for_solicit()
437 noavail = DHCP6OptStatusCode(statuscode=2) # NoAddrsAvail
438 self.send_advertise(ianaopts=noavail)
439 self.wait_for_solicit(is_resend=True)
441 def test_preferred_greater_than_valid_lifetime(self):
442 """ Preferred lifetime is greater than valid lifetime """
444 self.wait_for_solicit()
445 self.send_advertise()
446 self.wait_for_request()
447 ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=4, validlft=3)
448 self.send_reply(ianaopts=ia_na_opts)
452 # check FIB contains no addresses
453 fib = self.vapi.ip_route_dump(0, True)
454 addresses = set(self.get_interface_addresses(fib, self.pg0))
455 new_addresses = addresses.difference(self.initial_addresses)
456 self.assertEqual(len(new_addresses), 0)
458 def test_T1_greater_than_T2(self):
459 """ T1 is greater than T2 """
461 self.wait_for_solicit()
462 self.send_advertise()
463 self.wait_for_request()
464 ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=4, validlft=8)
465 self.send_reply(t1=80, t2=40, ianaopts=ia_na_opts)
469 # check FIB contains no addresses
470 fib = self.vapi.ip_route_dump(0, True)
471 addresses = set(self.get_interface_addresses(fib, self.pg0))
472 new_addresses = addresses.difference(self.initial_addresses)
473 self.assertEqual(len(new_addresses), 0)
476 class TestDHCPv6PDControlPlane(VppTestCase):
477 """ DHCPv6 PD Control Plane Test Case """
481 super(TestDHCPv6PDControlPlane, cls).setUpClass()
484 def tearDownClass(cls):
485 super(TestDHCPv6PDControlPlane, cls).tearDownClass()
488 super(TestDHCPv6PDControlPlane, self).setUp()
490 self.create_pg_interfaces(range(2))
491 self.interfaces = list(self.pg_interfaces)
492 for i in self.interfaces:
495 self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac)
496 self.client_duid = None
500 fib = self.vapi.ip_route_dump(0, True)
501 self.initial_addresses = set(self.get_interface_addresses(fib,
504 self.pg_enable_capture(self.pg_interfaces)
507 self.prefix_group = 'my-pd-prefix-group'
509 self.vapi.dhcp6_pd_client_enable_disable(
511 sw_if_index=self.pg0.sw_if_index,
512 prefix_group=self.prefix_group)
515 self.vapi.dhcp6_pd_client_enable_disable(self.pg0.sw_if_index,
518 for i in self.interfaces:
521 super(TestDHCPv6PDControlPlane, self).tearDown()
524 def get_interface_addresses(fib, pg):
527 if entry.route.prefix.prefixlen == 128:
528 path = entry.route.paths[0]
529 if path.sw_if_index == pg.sw_if_index:
530 lst.append(str(entry.route.prefix.network_address))
533 def get_addresses(self):
534 fib = self.vapi.ip_route_dump(0, True)
535 addresses = set(self.get_interface_addresses(fib, self.pg1))
536 return addresses.difference(self.initial_addresses)
538 def validate_duid_ll(self, duid):
541 def validate_packet(self, packet, msg_type, is_resend=False):
543 self.assertEqual(packet.haslayer(msg_type), 1)
544 client_duid = packet[DHCP6OptClientId].duid
545 if self.client_duid is None:
546 self.client_duid = client_duid
547 self.validate_duid_ll(client_duid)
549 self.assertEqual(self.client_duid, client_duid)
550 if msg_type != DHCP6_Solicit and msg_type != DHCP6_Rebind:
551 server_duid = packet[DHCP6OptServerId].duid
552 self.assertEqual(server_duid, self.server_duid)
554 self.assertEqual(self.trid, packet[msg_type].trid)
556 self.trid = packet[msg_type].trid
559 self.assertEqual(ip.dst, 'ff02::1:2')
560 self.assertEqual(udp.sport, 546)
561 self.assertEqual(udp.dport, 547)
562 dhcpv6 = packet[msg_type]
563 elapsed_time = dhcpv6[DHCP6OptElapsedTime]
565 self.assertNotEqual(elapsed_time.elapsedtime, 0)
567 self.assertEqual(elapsed_time.elapsedtime, 0)
568 except BaseException:
572 def wait_for_packet(self, msg_type, timeout=None, is_resend=False):
575 rx_list = self.pg0.get_capture(1, timeout=timeout)
577 self.validate_packet(packet, msg_type, is_resend=is_resend)
579 def wait_for_solicit(self, timeout=None, is_resend=False):
580 self.wait_for_packet(DHCP6_Solicit, timeout, is_resend=is_resend)
582 def wait_for_request(self, timeout=None, is_resend=False):
583 self.wait_for_packet(DHCP6_Request, timeout, is_resend=is_resend)
585 def wait_for_renew(self, timeout=None, is_resend=False):
586 self.wait_for_packet(DHCP6_Renew, timeout, is_resend=is_resend)
588 def wait_for_rebind(self, timeout=None, is_resend=False):
589 self.wait_for_packet(DHCP6_Rebind, timeout, is_resend=is_resend)
591 def wait_for_release(self, timeout=None, is_resend=False):
592 self.wait_for_packet(DHCP6_Release, timeout, is_resend=is_resend)
594 def send_packet(self, msg_type, t1=None, t2=None, iapdopt=None):
600 opt_ia_pd = DHCP6OptIA_PD(iaid=1, T1=t1, T2=t2)
602 opt_ia_pd = DHCP6OptIA_PD(iaid=1, T1=t1, T2=t2, iapdopt=iapdopt)
603 p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
604 IPv6(src=util.mk_ll_addr(self.pg0.remote_mac),
605 dst=self.pg0.local_ip6_ll) /
606 UDP(sport=547, dport=546) /
607 msg_type(trid=self.trid) /
608 DHCP6OptServerId(duid=self.server_duid) /
609 DHCP6OptClientId(duid=self.client_duid) /
612 self.pg0.add_stream([p])
613 self.pg_enable_capture(self.pg_interfaces)
616 def send_advertise(self, t1=None, t2=None, iapdopt=None):
617 self.send_packet(DHCP6_Advertise, t1, t2, iapdopt)
619 def send_reply(self, t1=None, t2=None, iapdopt=None):
620 self.send_packet(DHCP6_Reply, t1, t2, iapdopt)
622 def test_T1_and_T2_timeouts(self):
623 """ Test T1 and T2 timeouts """
625 self.wait_for_solicit()
626 self.send_advertise()
627 self.wait_for_request()
632 self.wait_for_renew()
634 self.pg_enable_capture(self.pg_interfaces)
638 self.wait_for_rebind()
640 def test_prefixes(self):
641 """ Test handling of prefixes """
643 address1 = '::2:0:0:0:405/60'
644 address2 = '::76:0:0:0:406/62'
646 self.vapi.ip6_add_del_address_using_prefix(
647 sw_if_index=self.pg1.sw_if_index,
648 address_with_prefix=address1,
649 prefix_group=self.prefix_group)
651 ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=2,
654 self.wait_for_solicit()
655 self.send_advertise(t1=20, t2=40, iapdopt=ia_pd_opts)
656 self.wait_for_request()
657 self.send_reply(t1=20, t2=40, iapdopt=ia_pd_opts)
660 # check FIB for new address
661 new_addresses = self.get_addresses()
662 self.assertEqual(len(new_addresses), 1)
663 addr = list(new_addresses)[0]
664 self.assertEqual(addr, '7:8:0:2::405')
668 self.vapi.ip6_add_del_address_using_prefix(
669 sw_if_index=self.pg1.sw_if_index,
670 address_with_prefix=address2,
671 prefix_group=self.prefix_group)
675 # check FIB contains 2 addresses
676 fib = self.vapi.ip_route_dump(0, True)
677 addresses = set(self.get_interface_addresses(fib, self.pg1))
678 new_addresses = addresses.difference(self.initial_addresses)
679 self.assertEqual(len(new_addresses), 2)
680 addr1 = list(new_addresses)[0]
681 addr2 = list(new_addresses)[1]
682 if addr1 == '7:8:0:76::406':
683 addr1, addr2 = addr2, addr1
684 self.assertEqual(addr1, '7:8:0:2::405')
685 self.assertEqual(addr2, '7:8:0:76::406')
689 # check that the addresses are deleted
690 fib = self.vapi.ip_route_dump(0, True)
691 addresses = set(self.get_interface_addresses(fib, self.pg1))
692 new_addresses = addresses.difference(self.initial_addresses)
693 self.assertEqual(len(new_addresses), 0)
696 if address1 is not None:
697 self.vapi.ip6_add_del_address_using_prefix(
698 sw_if_index=self.pg1.sw_if_index,
699 address_with_prefix=address1,
700 prefix_group=self.prefix_group, is_add=0)
701 if address2 is not None:
702 self.vapi.ip6_add_del_address_using_prefix(
703 sw_if_index=self.pg1.sw_if_index,
704 address_with_prefix=address2,
705 prefix_group=self.prefix_group, is_add=0)
707 def test_sending_client_messages_solicit(self):
708 """ VPP receives messages from DHCPv6 client """
710 self.wait_for_solicit()
711 self.send_packet(DHCP6_Solicit)
712 self.send_packet(DHCP6_Request)
713 self.send_packet(DHCP6_Renew)
714 self.send_packet(DHCP6_Rebind)
716 self.wait_for_solicit(is_resend=True)
718 def test_sending_inappropriate_packets(self):
719 """ Server sends messages with inappropriate message types """
721 self.wait_for_solicit()
723 self.wait_for_solicit(is_resend=True)
724 self.send_advertise()
725 self.wait_for_request()
726 self.send_advertise()
727 self.wait_for_request(is_resend=True)
729 self.wait_for_renew()
731 def test_no_prefix_available_in_advertise(self):
732 """ Advertise message contains NoPrefixAvail status code """
734 self.wait_for_solicit()
735 noavail = DHCP6OptStatusCode(statuscode=6) # NoPrefixAvail
736 self.send_advertise(iapdopt=noavail)
737 self.wait_for_solicit(is_resend=True)
739 def test_preferred_greater_than_valid_lifetime(self):
740 """ Preferred lifetime is greater than valid lifetime """
742 address1 = '::2:0:0:0:405/60'
744 self.vapi.ip6_add_del_address_using_prefix(
745 sw_if_index=self.pg1.sw_if_index,
746 address_with_prefix=address1,
747 prefix_group=self.prefix_group)
749 self.wait_for_solicit()
750 self.send_advertise()
751 self.wait_for_request()
752 ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=4,
754 self.send_reply(iapdopt=ia_pd_opts)
758 # check FIB contains no addresses
759 fib = self.vapi.ip_route_dump(0, True)
760 addresses = set(self.get_interface_addresses(fib, self.pg1))
761 new_addresses = addresses.difference(self.initial_addresses)
762 self.assertEqual(len(new_addresses), 0)
765 self.vapi.ip6_add_del_address_using_prefix(
766 sw_if_index=self.pg1.sw_if_index,
767 address_with_prefix=address1,
768 prefix_group=self.prefix_group,
771 def test_T1_greater_than_T2(self):
772 """ T1 is greater than T2 """
774 address1 = '::2:0:0:0:405/60'
776 self.vapi.ip6_add_del_address_using_prefix(
777 sw_if_index=self.pg1.sw_if_index,
778 address_with_prefix=address1,
779 prefix_group=self.prefix_group)
781 self.wait_for_solicit()
782 self.send_advertise()
783 self.wait_for_request()
784 ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=4,
786 self.send_reply(t1=80, t2=40, 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 prefix_group=self.prefix_group,
800 address_with_prefix=address1,