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
13 from vpp_papi import VppEnum
18 def ip6_normalize(ip6):
19 return inet_ntop(AF_INET6, inet_pton(AF_INET6, ip6))
22 class TestDHCPv6DataPlane(VppTestCase):
23 """ DHCPv6 Data Plane Test Case """
27 super(TestDHCPv6DataPlane, cls).setUpClass()
30 def tearDownClass(cls):
31 super(TestDHCPv6DataPlane, cls).tearDownClass()
34 super(TestDHCPv6DataPlane, self).setUp()
36 self.create_pg_interfaces(range(1))
37 self.interfaces = list(self.pg_interfaces)
38 for i in self.interfaces:
42 self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac)
45 for i in self.interfaces:
48 super(TestDHCPv6DataPlane, self).tearDown()
50 def test_dhcp_ia_na_send_solicit_receive_advertise(self):
51 """ Verify DHCPv6 IA NA Solicit packet and Advertise event """
53 self.vapi.dhcp6_clients_enable_disable(enable=1)
55 self.pg_enable_capture(self.pg_interfaces)
57 address = {'address': '1:2:3::5',
60 self.vapi.dhcp6_send_client_message(
61 server_index=0xffffffff,
63 msg_type=VppEnum.vl_api_dhcpv6_msg_type_t.DHCPV6_MSG_API_SOLICIT,
64 sw_if_index=self.pg0.sw_if_index,
70 rx_list = self.pg0.get_capture(1)
71 self.assertEqual(len(rx_list), 1)
74 self.assertEqual(packet.haslayer(IPv6), 1)
75 self.assertEqual(packet[IPv6].haslayer(DHCP6_Solicit), 1)
77 client_duid = packet[DHCP6OptClientId].duid
78 trid = packet[DHCP6_Solicit].trid
80 dst = ip6_normalize(packet[IPv6].dst)
81 dst2 = ip6_normalize("ff02::1:2")
82 self.assert_equal(dst, dst2)
83 src = ip6_normalize(packet[IPv6].src)
84 src2 = ip6_normalize(self.pg0.local_ip6_ll)
85 self.assert_equal(src, src2)
86 ia_na = packet[DHCP6OptIA_NA]
87 self.assert_equal(ia_na.T1, 20)
88 self.assert_equal(ia_na.T2, 40)
89 self.assert_equal(len(ia_na.ianaopts), 1)
90 address = ia_na.ianaopts[0]
91 self.assert_equal(address.addr, '1:2:3::5')
92 self.assert_equal(address.preflft, 60)
93 self.assert_equal(address.validlft, 120)
95 self.vapi.want_dhcp6_reply_events(enable_disable=1,
99 ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=60,
101 p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
102 IPv6(src=util.mk_ll_addr(self.pg0.remote_mac),
103 dst=self.pg0.local_ip6_ll) /
104 UDP(sport=547, dport=546) /
105 DHCP6_Advertise(trid=trid) /
106 DHCP6OptServerId(duid=self.server_duid) /
107 DHCP6OptClientId(duid=client_duid) /
108 DHCP6OptPref(prefval=7) /
109 DHCP6OptStatusCode(statuscode=1) /
110 DHCP6OptIA_NA(iaid=1, T1=20, T2=40, ianaopts=ia_na_opts)
112 self.pg0.add_stream([p])
115 ev = self.vapi.wait_for_event(1, "dhcp6_reply_event")
117 self.assert_equal(ev.preference, 7)
118 self.assert_equal(ev.status_code, 1)
119 self.assert_equal(ev.T1, 20)
120 self.assert_equal(ev.T2, 40)
122 reported_address = ev.addresses[0]
123 address = ia_na_opts.getfieldval("addr")
124 self.assert_equal(str(reported_address.address), address)
125 self.assert_equal(reported_address.preferred_time,
126 ia_na_opts.getfieldval("preflft"))
127 self.assert_equal(reported_address.valid_time,
128 ia_na_opts.getfieldval("validlft"))
131 self.vapi.want_dhcp6_reply_events(enable_disable=0)
132 self.vapi.dhcp6_clients_enable_disable(enable=0)
134 def test_dhcp_pd_send_solicit_receive_advertise(self):
135 """ Verify DHCPv6 PD Solicit packet and Advertise event """
137 self.vapi.dhcp6_clients_enable_disable(enable=1)
139 self.pg_enable_capture(self.pg_interfaces)
142 prefix = {'prefix': {'address': '1:2:3::', 'len': 50},
143 'preferred_time': 60,
146 self.vapi.dhcp6_pd_send_client_message(
147 server_index=0xffffffff,
149 msg_type=VppEnum.vl_api_dhcpv6_msg_type_t.DHCPV6_MSG_API_SOLICIT,
150 sw_if_index=self.pg0.sw_if_index,
154 n_prefixes=len(prefixes))
155 rx_list = self.pg0.get_capture(1)
156 self.assertEqual(len(rx_list), 1)
159 self.assertEqual(packet.haslayer(IPv6), 1)
160 self.assertEqual(packet[IPv6].haslayer(DHCP6_Solicit), 1)
162 client_duid = packet[DHCP6OptClientId].duid
163 trid = packet[DHCP6_Solicit].trid
165 dst = ip6_normalize(packet[IPv6].dst)
166 dst2 = ip6_normalize("ff02::1:2")
167 self.assert_equal(dst, dst2)
168 src = ip6_normalize(packet[IPv6].src)
169 src2 = ip6_normalize(self.pg0.local_ip6_ll)
170 self.assert_equal(src, src2)
171 ia_pd = packet[DHCP6OptIA_PD]
172 self.assert_equal(ia_pd.T1, 20)
173 self.assert_equal(ia_pd.T2, 40)
174 self.assert_equal(len(ia_pd.iapdopt), 1)
175 prefix = ia_pd.iapdopt[0]
176 self.assert_equal(prefix.prefix, '1:2:3::')
177 self.assert_equal(prefix.plen, 50)
178 self.assert_equal(prefix.preflft, 60)
179 self.assert_equal(prefix.validlft, 120)
181 self.vapi.want_dhcp6_pd_reply_events(enable_disable=1,
185 ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=60,
187 p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
188 IPv6(src=util.mk_ll_addr(self.pg0.remote_mac),
189 dst=self.pg0.local_ip6_ll) /
190 UDP(sport=547, dport=546) /
191 DHCP6_Advertise(trid=trid) /
192 DHCP6OptServerId(duid=self.server_duid) /
193 DHCP6OptClientId(duid=client_duid) /
194 DHCP6OptPref(prefval=7) /
195 DHCP6OptStatusCode(statuscode=1) /
196 DHCP6OptIA_PD(iaid=1, T1=20, T2=40, iapdopt=ia_pd_opts)
198 self.pg0.add_stream([p])
201 ev = self.vapi.wait_for_event(1, "dhcp6_pd_reply_event")
203 self.assert_equal(ev.preference, 7)
204 self.assert_equal(ev.status_code, 1)
205 self.assert_equal(ev.T1, 20)
206 self.assert_equal(ev.T2, 40)
208 reported_prefix = ev.prefixes[0]
209 prefix = ia_pd_opts.getfieldval("prefix")
211 str(reported_prefix.prefix).split('/')[0], prefix)
212 self.assert_equal(int(str(reported_prefix.prefix).split('/')[1]),
213 ia_pd_opts.getfieldval("plen"))
214 self.assert_equal(reported_prefix.preferred_time,
215 ia_pd_opts.getfieldval("preflft"))
216 self.assert_equal(reported_prefix.valid_time,
217 ia_pd_opts.getfieldval("validlft"))
220 self.vapi.want_dhcp6_pd_reply_events(enable_disable=0)
221 self.vapi.dhcp6_clients_enable_disable(enable=0)
224 class TestDHCPv6IANAControlPlane(VppTestCase):
225 """ DHCPv6 IA NA Control Plane Test Case """
229 super(TestDHCPv6IANAControlPlane, cls).setUpClass()
232 def tearDownClass(cls):
233 super(TestDHCPv6IANAControlPlane, cls).tearDownClass()
236 super(TestDHCPv6IANAControlPlane, self).setUp()
238 self.create_pg_interfaces(range(1))
239 self.interfaces = list(self.pg_interfaces)
240 for i in self.interfaces:
243 self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac)
244 self.client_duid = None
248 fib = self.vapi.ip_route_dump(0, True)
249 self.initial_addresses = set(self.get_interface_addresses(fib,
252 self.pg_enable_capture(self.pg_interfaces)
255 self.vapi.dhcp6_client_enable_disable(sw_if_index=self.pg0.sw_if_index,
259 self.vapi.dhcp6_client_enable_disable(sw_if_index=self.pg0.sw_if_index,
262 for i in self.interfaces:
265 super(TestDHCPv6IANAControlPlane, self).tearDown()
268 def get_interface_addresses(fib, pg):
271 if entry.route.prefix.prefixlen == 128:
272 path = entry.route.paths[0]
273 if path.sw_if_index == pg.sw_if_index:
274 lst.append(str(entry.route.prefix.network_address))
277 def get_addresses(self):
278 fib = self.vapi.ip_route_dump(0, True)
279 addresses = set(self.get_interface_addresses(fib, self.pg0))
280 return addresses.difference(self.initial_addresses)
282 def validate_duid_ll(self, duid):
285 def validate_packet(self, packet, msg_type, is_resend=False):
287 self.assertEqual(packet.haslayer(msg_type), 1)
288 client_duid = packet[DHCP6OptClientId].duid
289 if self.client_duid is None:
290 self.client_duid = client_duid
291 self.validate_duid_ll(client_duid)
293 self.assertEqual(self.client_duid, client_duid)
294 if msg_type != DHCP6_Solicit and msg_type != DHCP6_Rebind:
295 server_duid = packet[DHCP6OptServerId].duid
296 self.assertEqual(server_duid, self.server_duid)
298 self.assertEqual(self.trid, packet[msg_type].trid)
300 self.trid = packet[msg_type].trid
303 self.assertEqual(ip.dst, 'ff02::1:2')
304 self.assertEqual(udp.sport, 546)
305 self.assertEqual(udp.dport, 547)
306 dhcpv6 = packet[msg_type]
307 elapsed_time = dhcpv6[DHCP6OptElapsedTime]
309 self.assertNotEqual(elapsed_time.elapsedtime, 0)
311 self.assertEqual(elapsed_time.elapsedtime, 0)
312 except BaseException:
316 def wait_for_packet(self, msg_type, timeout=None, is_resend=False):
319 rx_list = self.pg0.get_capture(1, timeout=timeout)
321 self.validate_packet(packet, msg_type, is_resend=is_resend)
323 def wait_for_solicit(self, timeout=None, is_resend=False):
324 self.wait_for_packet(DHCP6_Solicit, timeout, is_resend=is_resend)
326 def wait_for_request(self, timeout=None, is_resend=False):
327 self.wait_for_packet(DHCP6_Request, timeout, is_resend=is_resend)
329 def wait_for_renew(self, timeout=None, is_resend=False):
330 self.wait_for_packet(DHCP6_Renew, timeout, is_resend=is_resend)
332 def wait_for_rebind(self, timeout=None, is_resend=False):
333 self.wait_for_packet(DHCP6_Rebind, timeout, is_resend=is_resend)
335 def wait_for_release(self, timeout=None, is_resend=False):
336 self.wait_for_packet(DHCP6_Release, timeout, is_resend=is_resend)
338 def send_packet(self, msg_type, t1=None, t2=None, ianaopts=None):
344 opt_ia_na = DHCP6OptIA_NA(iaid=1, T1=t1, T2=t2)
346 opt_ia_na = DHCP6OptIA_NA(iaid=1, T1=t1, T2=t2, ianaopts=ianaopts)
347 p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
348 IPv6(src=util.mk_ll_addr(self.pg0.remote_mac),
349 dst=self.pg0.local_ip6_ll) /
350 UDP(sport=547, dport=546) /
351 msg_type(trid=self.trid) /
352 DHCP6OptServerId(duid=self.server_duid) /
353 DHCP6OptClientId(duid=self.client_duid) /
356 self.pg0.add_stream([p])
357 self.pg_enable_capture(self.pg_interfaces)
360 def send_advertise(self, t1=None, t2=None, ianaopts=None):
361 self.send_packet(DHCP6_Advertise, t1, t2, ianaopts)
363 def send_reply(self, t1=None, t2=None, ianaopts=None):
364 self.send_packet(DHCP6_Reply, t1, t2, ianaopts)
366 def test_T1_and_T2_timeouts(self):
367 """ Test T1 and T2 timeouts """
369 self.wait_for_solicit()
370 self.send_advertise()
371 self.wait_for_request()
376 self.wait_for_renew()
378 self.pg_enable_capture(self.pg_interfaces)
382 self.wait_for_rebind()
384 def test_addresses(self):
385 """ Test handling of addresses """
387 ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=1,
390 self.wait_for_solicit()
391 self.send_advertise(t1=20, t2=40, ianaopts=ia_na_opts)
392 self.wait_for_request()
393 self.send_reply(t1=20, t2=40, ianaopts=ia_na_opts)
396 # check FIB for new address
397 new_addresses = self.get_addresses()
398 self.assertEqual(len(new_addresses), 1)
399 addr = list(new_addresses)[0]
400 self.assertEqual(addr, '7:8::2')
404 # check that the address is deleted
405 fib = self.vapi.ip_route_dump(0, True)
406 addresses = set(self.get_interface_addresses(fib, self.pg0))
407 new_addresses = addresses.difference(self.initial_addresses)
408 self.assertEqual(len(new_addresses), 0)
410 def test_sending_client_messages_solicit(self):
411 """ VPP receives messages from DHCPv6 client """
413 self.wait_for_solicit()
414 self.send_packet(DHCP6_Solicit)
415 self.send_packet(DHCP6_Request)
416 self.send_packet(DHCP6_Renew)
417 self.send_packet(DHCP6_Rebind)
419 self.wait_for_solicit(is_resend=True)
421 def test_sending_inappropriate_packets(self):
422 """ Server sends messages with inappropriate message types """
424 self.wait_for_solicit()
426 self.wait_for_solicit(is_resend=True)
427 self.send_advertise()
428 self.wait_for_request()
429 self.send_advertise()
430 self.wait_for_request(is_resend=True)
432 self.wait_for_renew()
434 def test_no_address_available_in_advertise(self):
435 """ Advertise message contains NoAddrsAvail status code """
437 self.wait_for_solicit()
438 noavail = DHCP6OptStatusCode(statuscode=2) # NoAddrsAvail
439 self.send_advertise(ianaopts=noavail)
440 self.wait_for_solicit(is_resend=True)
442 def test_preferred_greater_than_valid_lifetime(self):
443 """ Preferred lifetime is greater than valid lifetime """
445 self.wait_for_solicit()
446 self.send_advertise()
447 self.wait_for_request()
448 ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=4, validlft=3)
449 self.send_reply(ianaopts=ia_na_opts)
453 # check FIB contains no addresses
454 fib = self.vapi.ip_route_dump(0, True)
455 addresses = set(self.get_interface_addresses(fib, self.pg0))
456 new_addresses = addresses.difference(self.initial_addresses)
457 self.assertEqual(len(new_addresses), 0)
459 def test_T1_greater_than_T2(self):
460 """ T1 is greater than T2 """
462 self.wait_for_solicit()
463 self.send_advertise()
464 self.wait_for_request()
465 ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=4, validlft=8)
466 self.send_reply(t1=80, t2=40, ianaopts=ia_na_opts)
470 # check FIB contains no addresses
471 fib = self.vapi.ip_route_dump(0, True)
472 addresses = set(self.get_interface_addresses(fib, self.pg0))
473 new_addresses = addresses.difference(self.initial_addresses)
474 self.assertEqual(len(new_addresses), 0)
477 class TestDHCPv6PDControlPlane(VppTestCase):
478 """ DHCPv6 PD Control Plane Test Case """
482 super(TestDHCPv6PDControlPlane, cls).setUpClass()
485 def tearDownClass(cls):
486 super(TestDHCPv6PDControlPlane, cls).tearDownClass()
489 super(TestDHCPv6PDControlPlane, self).setUp()
491 self.create_pg_interfaces(range(2))
492 self.interfaces = list(self.pg_interfaces)
493 for i in self.interfaces:
496 self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac)
497 self.client_duid = None
501 fib = self.vapi.ip_route_dump(0, True)
502 self.initial_addresses = set(self.get_interface_addresses(fib,
505 self.pg_enable_capture(self.pg_interfaces)
508 self.prefix_group = 'my-pd-prefix-group'
510 self.vapi.dhcp6_pd_client_enable_disable(
512 sw_if_index=self.pg0.sw_if_index,
513 prefix_group=self.prefix_group)
516 self.vapi.dhcp6_pd_client_enable_disable(self.pg0.sw_if_index,
519 for i in self.interfaces:
522 super(TestDHCPv6PDControlPlane, self).tearDown()
525 def get_interface_addresses(fib, pg):
528 if entry.route.prefix.prefixlen == 128:
529 path = entry.route.paths[0]
530 if path.sw_if_index == pg.sw_if_index:
531 lst.append(str(entry.route.prefix.network_address))
534 def get_addresses(self):
535 fib = self.vapi.ip_route_dump(0, True)
536 addresses = set(self.get_interface_addresses(fib, self.pg1))
537 return addresses.difference(self.initial_addresses)
539 def validate_duid_ll(self, duid):
542 def validate_packet(self, packet, msg_type, is_resend=False):
544 self.assertEqual(packet.haslayer(msg_type), 1)
545 client_duid = packet[DHCP6OptClientId].duid
546 if self.client_duid is None:
547 self.client_duid = client_duid
548 self.validate_duid_ll(client_duid)
550 self.assertEqual(self.client_duid, client_duid)
551 if msg_type != DHCP6_Solicit and msg_type != DHCP6_Rebind:
552 server_duid = packet[DHCP6OptServerId].duid
553 self.assertEqual(server_duid, self.server_duid)
555 self.assertEqual(self.trid, packet[msg_type].trid)
557 self.trid = packet[msg_type].trid
560 self.assertEqual(ip.dst, 'ff02::1:2')
561 self.assertEqual(udp.sport, 546)
562 self.assertEqual(udp.dport, 547)
563 dhcpv6 = packet[msg_type]
564 elapsed_time = dhcpv6[DHCP6OptElapsedTime]
566 self.assertNotEqual(elapsed_time.elapsedtime, 0)
568 self.assertEqual(elapsed_time.elapsedtime, 0)
569 except BaseException:
573 def wait_for_packet(self, msg_type, timeout=None, is_resend=False):
576 rx_list = self.pg0.get_capture(1, timeout=timeout)
578 self.validate_packet(packet, msg_type, is_resend=is_resend)
580 def wait_for_solicit(self, timeout=None, is_resend=False):
581 self.wait_for_packet(DHCP6_Solicit, timeout, is_resend=is_resend)
583 def wait_for_request(self, timeout=None, is_resend=False):
584 self.wait_for_packet(DHCP6_Request, timeout, is_resend=is_resend)
586 def wait_for_renew(self, timeout=None, is_resend=False):
587 self.wait_for_packet(DHCP6_Renew, timeout, is_resend=is_resend)
589 def wait_for_rebind(self, timeout=None, is_resend=False):
590 self.wait_for_packet(DHCP6_Rebind, timeout, is_resend=is_resend)
592 def wait_for_release(self, timeout=None, is_resend=False):
593 self.wait_for_packet(DHCP6_Release, timeout, is_resend=is_resend)
595 def send_packet(self, msg_type, t1=None, t2=None, iapdopt=None):
601 opt_ia_pd = DHCP6OptIA_PD(iaid=1, T1=t1, T2=t2)
603 opt_ia_pd = DHCP6OptIA_PD(iaid=1, T1=t1, T2=t2, iapdopt=iapdopt)
604 p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
605 IPv6(src=util.mk_ll_addr(self.pg0.remote_mac),
606 dst=self.pg0.local_ip6_ll) /
607 UDP(sport=547, dport=546) /
608 msg_type(trid=self.trid) /
609 DHCP6OptServerId(duid=self.server_duid) /
610 DHCP6OptClientId(duid=self.client_duid) /
613 self.pg0.add_stream([p])
614 self.pg_enable_capture(self.pg_interfaces)
617 def send_advertise(self, t1=None, t2=None, iapdopt=None):
618 self.send_packet(DHCP6_Advertise, t1, t2, iapdopt)
620 def send_reply(self, t1=None, t2=None, iapdopt=None):
621 self.send_packet(DHCP6_Reply, t1, t2, iapdopt)
623 def test_T1_and_T2_timeouts(self):
624 """ Test T1 and T2 timeouts """
626 self.wait_for_solicit()
627 self.send_advertise()
628 self.wait_for_request()
633 self.wait_for_renew()
635 self.pg_enable_capture(self.pg_interfaces)
639 self.wait_for_rebind()
641 def test_prefixes(self):
642 """ Test handling of prefixes """
644 address1 = '::2:0:0:0:405/60'
645 address2 = '::76:0:0:0:406/62'
647 self.vapi.ip6_add_del_address_using_prefix(
648 sw_if_index=self.pg1.sw_if_index,
649 address_with_prefix=address1,
650 prefix_group=self.prefix_group)
652 ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=2,
655 self.wait_for_solicit()
656 self.send_advertise(t1=20, t2=40, iapdopt=ia_pd_opts)
657 self.wait_for_request()
658 self.send_reply(t1=20, t2=40, iapdopt=ia_pd_opts)
661 # check FIB for new address
662 new_addresses = self.get_addresses()
663 self.assertEqual(len(new_addresses), 1)
664 addr = list(new_addresses)[0]
665 self.assertEqual(addr, '7:8:0:2::405')
669 self.vapi.ip6_add_del_address_using_prefix(
670 sw_if_index=self.pg1.sw_if_index,
671 address_with_prefix=address2,
672 prefix_group=self.prefix_group)
676 # check FIB contains 2 addresses
677 fib = self.vapi.ip_route_dump(0, True)
678 addresses = set(self.get_interface_addresses(fib, self.pg1))
679 new_addresses = addresses.difference(self.initial_addresses)
680 self.assertEqual(len(new_addresses), 2)
681 addr1 = list(new_addresses)[0]
682 addr2 = list(new_addresses)[1]
683 if addr1 == '7:8:0:76::406':
684 addr1, addr2 = addr2, addr1
685 self.assertEqual(addr1, '7:8:0:2::405')
686 self.assertEqual(addr2, '7:8:0:76::406')
690 # check that the addresses are deleted
691 fib = self.vapi.ip_route_dump(0, True)
692 addresses = set(self.get_interface_addresses(fib, self.pg1))
693 new_addresses = addresses.difference(self.initial_addresses)
694 self.assertEqual(len(new_addresses), 0)
697 if address1 is not None:
698 self.vapi.ip6_add_del_address_using_prefix(
699 sw_if_index=self.pg1.sw_if_index,
700 address_with_prefix=address1,
701 prefix_group=self.prefix_group, is_add=0)
702 if address2 is not None:
703 self.vapi.ip6_add_del_address_using_prefix(
704 sw_if_index=self.pg1.sw_if_index,
705 address_with_prefix=address2,
706 prefix_group=self.prefix_group, is_add=0)
708 def test_sending_client_messages_solicit(self):
709 """ VPP receives messages from DHCPv6 client """
711 self.wait_for_solicit()
712 self.send_packet(DHCP6_Solicit)
713 self.send_packet(DHCP6_Request)
714 self.send_packet(DHCP6_Renew)
715 self.send_packet(DHCP6_Rebind)
717 self.wait_for_solicit(is_resend=True)
719 def test_sending_inappropriate_packets(self):
720 """ Server sends messages with inappropriate message types """
722 self.wait_for_solicit()
724 self.wait_for_solicit(is_resend=True)
725 self.send_advertise()
726 self.wait_for_request()
727 self.send_advertise()
728 self.wait_for_request(is_resend=True)
730 self.wait_for_renew()
732 def test_no_prefix_available_in_advertise(self):
733 """ Advertise message contains NoPrefixAvail status code """
735 self.wait_for_solicit()
736 noavail = DHCP6OptStatusCode(statuscode=6) # NoPrefixAvail
737 self.send_advertise(iapdopt=noavail)
738 self.wait_for_solicit(is_resend=True)
740 def test_preferred_greater_than_valid_lifetime(self):
741 """ Preferred lifetime is greater than valid lifetime """
743 address1 = '::2:0:0:0:405/60'
745 self.vapi.ip6_add_del_address_using_prefix(
746 sw_if_index=self.pg1.sw_if_index,
747 address_with_prefix=address1,
748 prefix_group=self.prefix_group)
750 self.wait_for_solicit()
751 self.send_advertise()
752 self.wait_for_request()
753 ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=4,
755 self.send_reply(iapdopt=ia_pd_opts)
759 # check FIB contains no addresses
760 fib = self.vapi.ip_route_dump(0, True)
761 addresses = set(self.get_interface_addresses(fib, self.pg1))
762 new_addresses = addresses.difference(self.initial_addresses)
763 self.assertEqual(len(new_addresses), 0)
766 self.vapi.ip6_add_del_address_using_prefix(
767 sw_if_index=self.pg1.sw_if_index,
768 address_with_prefix=address1,
769 prefix_group=self.prefix_group,
772 def test_T1_greater_than_T2(self):
773 """ T1 is greater than T2 """
775 address1 = '::2:0:0:0:405/60'
777 self.vapi.ip6_add_del_address_using_prefix(
778 sw_if_index=self.pg1.sw_if_index,
779 address_with_prefix=address1,
780 prefix_group=self.prefix_group)
782 self.wait_for_solicit()
783 self.send_advertise()
784 self.wait_for_request()
785 ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=4,
787 self.send_reply(t1=80, t2=40, iapdopt=ia_pd_opts)
791 # check FIB contains no addresses
792 fib = self.vapi.ip_route_dump(0, True)
793 addresses = set(self.get_interface_addresses(fib, self.pg1))
794 new_addresses = addresses.difference(self.initial_addresses)
795 self.assertEqual(len(new_addresses), 0)
798 self.vapi.ip6_add_del_address_using_prefix(
799 sw_if_index=self.pg1.sw_if_index,
800 prefix_group=self.prefix_group,
801 address_with_prefix=address1,