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 """
232 super(TestDHCPv6IANAControlPlane, cls).setUpClass()
235 def tearDownClass(cls):
236 super(TestDHCPv6IANAControlPlane, cls).tearDownClass()
239 super(TestDHCPv6IANAControlPlane, self).setUp()
241 self.create_pg_interfaces(range(1))
242 self.interfaces = list(self.pg_interfaces)
243 for i in self.interfaces:
246 self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac)
247 self.client_duid = None
251 fib = self.vapi.ip_route_dump(0, True)
252 self.initial_addresses = set(self.get_interface_addresses(fib,
255 self.pg_enable_capture(self.pg_interfaces)
258 self.vapi.dhcp6_client_enable_disable(sw_if_index=self.pg0.sw_if_index,
262 self.vapi.dhcp6_client_enable_disable(sw_if_index=self.pg0.sw_if_index,
265 for i in self.interfaces:
268 super(TestDHCPv6IANAControlPlane, self).tearDown()
271 def get_interface_addresses(fib, pg):
274 if entry.route.prefix.prefixlen == 128:
275 path = entry.route.paths[0]
276 if path.sw_if_index == pg.sw_if_index:
277 lst.append(str(entry.route.prefix.network_address))
280 def get_addresses(self):
281 fib = self.vapi.ip_route_dump(0, True)
282 addresses = set(self.get_interface_addresses(fib, self.pg0))
283 return addresses.difference(self.initial_addresses)
285 def validate_duid_ll(self, duid):
288 def validate_packet(self, packet, msg_type, is_resend=False):
290 self.assertEqual(packet.haslayer(msg_type), 1)
291 client_duid = packet[DHCP6OptClientId].duid
292 if self.client_duid is None:
293 self.client_duid = client_duid
294 self.validate_duid_ll(client_duid)
296 self.assertEqual(self.client_duid, client_duid)
297 if msg_type != DHCP6_Solicit and msg_type != DHCP6_Rebind:
298 server_duid = packet[DHCP6OptServerId].duid
299 self.assertEqual(server_duid, self.server_duid)
301 self.assertEqual(self.trid, packet[msg_type].trid)
303 self.trid = packet[msg_type].trid
306 self.assertEqual(ip.dst, 'ff02::1:2')
307 self.assertEqual(udp.sport, 546)
308 self.assertEqual(udp.dport, 547)
309 dhcpv6 = packet[msg_type]
310 elapsed_time = dhcpv6[DHCP6OptElapsedTime]
312 self.assertNotEqual(elapsed_time.elapsedtime, 0)
314 self.assertEqual(elapsed_time.elapsedtime, 0)
315 except BaseException:
319 def wait_for_packet(self, msg_type, timeout=None, is_resend=False):
322 rx_list = self.pg0.get_capture(1, timeout=timeout)
324 self.validate_packet(packet, msg_type, is_resend=is_resend)
326 def wait_for_solicit(self, timeout=None, is_resend=False):
327 self.wait_for_packet(DHCP6_Solicit, timeout, is_resend=is_resend)
329 def wait_for_request(self, timeout=None, is_resend=False):
330 self.wait_for_packet(DHCP6_Request, timeout, is_resend=is_resend)
332 def wait_for_renew(self, timeout=None, is_resend=False):
333 self.wait_for_packet(DHCP6_Renew, timeout, is_resend=is_resend)
335 def wait_for_rebind(self, timeout=None, is_resend=False):
336 self.wait_for_packet(DHCP6_Rebind, timeout, is_resend=is_resend)
338 def wait_for_release(self, timeout=None, is_resend=False):
339 self.wait_for_packet(DHCP6_Release, timeout, is_resend=is_resend)
341 def send_packet(self, msg_type, t1=None, t2=None, ianaopts=None):
347 opt_ia_na = DHCP6OptIA_NA(iaid=1, T1=t1, T2=t2)
349 opt_ia_na = DHCP6OptIA_NA(iaid=1, T1=t1, T2=t2, ianaopts=ianaopts)
350 p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
351 IPv6(src=util.mk_ll_addr(self.pg0.remote_mac),
352 dst=self.pg0.local_ip6_ll) /
353 UDP(sport=547, dport=546) /
354 msg_type(trid=self.trid) /
355 DHCP6OptServerId(duid=self.server_duid) /
356 DHCP6OptClientId(duid=self.client_duid) /
359 self.pg0.add_stream([p])
360 self.pg_enable_capture(self.pg_interfaces)
363 def send_advertise(self, t1=None, t2=None, ianaopts=None):
364 self.send_packet(DHCP6_Advertise, t1, t2, ianaopts)
366 def send_reply(self, t1=None, t2=None, ianaopts=None):
367 self.send_packet(DHCP6_Reply, t1, t2, ianaopts)
369 def test_T1_and_T2_timeouts(self):
370 """ Test T1 and T2 timeouts """
372 self.wait_for_solicit()
373 self.send_advertise()
374 self.wait_for_request()
379 self.wait_for_renew()
381 self.pg_enable_capture(self.pg_interfaces)
385 self.wait_for_rebind()
387 def test_addresses(self):
388 """ Test handling of addresses """
390 ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=1,
393 self.wait_for_solicit()
394 self.send_advertise(t1=20, t2=40, ianaopts=ia_na_opts)
395 self.wait_for_request()
396 self.send_reply(t1=20, t2=40, ianaopts=ia_na_opts)
399 # check FIB for new address
400 new_addresses = self.get_addresses()
401 self.assertEqual(len(new_addresses), 1)
402 addr = list(new_addresses)[0]
403 self.assertEqual(addr, '7:8::2')
407 # check that the address is deleted
408 fib = self.vapi.ip_route_dump(0, True)
409 addresses = set(self.get_interface_addresses(fib, self.pg0))
410 new_addresses = addresses.difference(self.initial_addresses)
411 self.assertEqual(len(new_addresses), 0)
413 def test_sending_client_messages_solicit(self):
414 """ VPP receives messages from DHCPv6 client """
416 self.wait_for_solicit()
417 self.send_packet(DHCP6_Solicit)
418 self.send_packet(DHCP6_Request)
419 self.send_packet(DHCP6_Renew)
420 self.send_packet(DHCP6_Rebind)
422 self.wait_for_solicit(is_resend=True)
424 def test_sending_inappropriate_packets(self):
425 """ Server sends messages with inappropriate message types """
427 self.wait_for_solicit()
429 self.wait_for_solicit(is_resend=True)
430 self.send_advertise()
431 self.wait_for_request()
432 self.send_advertise()
433 self.wait_for_request(is_resend=True)
435 self.wait_for_renew()
437 def test_no_address_available_in_advertise(self):
438 """ Advertise message contains NoAddrsAvail status code """
440 self.wait_for_solicit()
441 noavail = DHCP6OptStatusCode(statuscode=2) # NoAddrsAvail
442 self.send_advertise(ianaopts=noavail)
443 self.wait_for_solicit(is_resend=True)
445 def test_preferred_greater_than_valid_lifetime(self):
446 """ Preferred lifetime is greater than valid lifetime """
448 self.wait_for_solicit()
449 self.send_advertise()
450 self.wait_for_request()
451 ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=4, validlft=3)
452 self.send_reply(ianaopts=ia_na_opts)
456 # check FIB contains no addresses
457 fib = self.vapi.ip_route_dump(0, True)
458 addresses = set(self.get_interface_addresses(fib, self.pg0))
459 new_addresses = addresses.difference(self.initial_addresses)
460 self.assertEqual(len(new_addresses), 0)
462 def test_T1_greater_than_T2(self):
463 """ T1 is greater than T2 """
465 self.wait_for_solicit()
466 self.send_advertise()
467 self.wait_for_request()
468 ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=4, validlft=8)
469 self.send_reply(t1=80, t2=40, ianaopts=ia_na_opts)
473 # check FIB contains no addresses
474 fib = self.vapi.ip_route_dump(0, True)
475 addresses = set(self.get_interface_addresses(fib, self.pg0))
476 new_addresses = addresses.difference(self.initial_addresses)
477 self.assertEqual(len(new_addresses), 0)
480 class TestDHCPv6PDControlPlane(VppTestCase):
481 """ DHCPv6 PD Control Plane Test Case """
485 super(TestDHCPv6PDControlPlane, cls).setUpClass()
488 def tearDownClass(cls):
489 super(TestDHCPv6PDControlPlane, cls).tearDownClass()
492 super(TestDHCPv6PDControlPlane, self).setUp()
494 self.create_pg_interfaces(range(2))
495 self.interfaces = list(self.pg_interfaces)
496 for i in self.interfaces:
499 self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac)
500 self.client_duid = None
504 fib = self.vapi.ip_route_dump(0, True)
505 self.initial_addresses = set(self.get_interface_addresses(fib,
508 self.pg_enable_capture(self.pg_interfaces)
511 self.prefix_group = 'my-pd-prefix-group'
513 self.vapi.dhcp6_pd_client_enable_disable(
515 sw_if_index=self.pg0.sw_if_index,
516 prefix_group=self.prefix_group)
519 self.vapi.dhcp6_pd_client_enable_disable(self.pg0.sw_if_index,
522 for i in self.interfaces:
525 super(TestDHCPv6PDControlPlane, self).tearDown()
528 def get_interface_addresses(fib, pg):
531 if entry.route.prefix.prefixlen == 128:
532 path = entry.route.paths[0]
533 if path.sw_if_index == pg.sw_if_index:
534 lst.append(str(entry.route.prefix.network_address))
537 def get_addresses(self):
538 fib = self.vapi.ip_route_dump(0, True)
539 addresses = set(self.get_interface_addresses(fib, self.pg1))
540 return addresses.difference(self.initial_addresses)
542 def validate_duid_ll(self, duid):
545 def validate_packet(self, packet, msg_type, is_resend=False):
547 self.assertEqual(packet.haslayer(msg_type), 1)
548 client_duid = packet[DHCP6OptClientId].duid
549 if self.client_duid is None:
550 self.client_duid = client_duid
551 self.validate_duid_ll(client_duid)
553 self.assertEqual(self.client_duid, client_duid)
554 if msg_type != DHCP6_Solicit and msg_type != DHCP6_Rebind:
555 server_duid = packet[DHCP6OptServerId].duid
556 self.assertEqual(server_duid, self.server_duid)
558 self.assertEqual(self.trid, packet[msg_type].trid)
560 self.trid = packet[msg_type].trid
563 self.assertEqual(ip.dst, 'ff02::1:2')
564 self.assertEqual(udp.sport, 546)
565 self.assertEqual(udp.dport, 547)
566 dhcpv6 = packet[msg_type]
567 elapsed_time = dhcpv6[DHCP6OptElapsedTime]
569 self.assertNotEqual(elapsed_time.elapsedtime, 0)
571 self.assertEqual(elapsed_time.elapsedtime, 0)
572 except BaseException:
576 def wait_for_packet(self, msg_type, timeout=None, is_resend=False):
579 rx_list = self.pg0.get_capture(1, timeout=timeout)
581 self.validate_packet(packet, msg_type, is_resend=is_resend)
583 def wait_for_solicit(self, timeout=None, is_resend=False):
584 self.wait_for_packet(DHCP6_Solicit, timeout, is_resend=is_resend)
586 def wait_for_request(self, timeout=None, is_resend=False):
587 self.wait_for_packet(DHCP6_Request, timeout, is_resend=is_resend)
589 def wait_for_renew(self, timeout=None, is_resend=False):
590 self.wait_for_packet(DHCP6_Renew, timeout, is_resend=is_resend)
592 def wait_for_rebind(self, timeout=None, is_resend=False):
593 self.wait_for_packet(DHCP6_Rebind, timeout, is_resend=is_resend)
595 def wait_for_release(self, timeout=None, is_resend=False):
596 self.wait_for_packet(DHCP6_Release, timeout, is_resend=is_resend)
598 def send_packet(self, msg_type, t1=None, t2=None, iapdopt=None):
604 opt_ia_pd = DHCP6OptIA_PD(iaid=1, T1=t1, T2=t2)
606 opt_ia_pd = DHCP6OptIA_PD(iaid=1, T1=t1, T2=t2, iapdopt=iapdopt)
607 p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
608 IPv6(src=util.mk_ll_addr(self.pg0.remote_mac),
609 dst=self.pg0.local_ip6_ll) /
610 UDP(sport=547, dport=546) /
611 msg_type(trid=self.trid) /
612 DHCP6OptServerId(duid=self.server_duid) /
613 DHCP6OptClientId(duid=self.client_duid) /
616 self.pg0.add_stream([p])
617 self.pg_enable_capture(self.pg_interfaces)
620 def send_advertise(self, t1=None, t2=None, iapdopt=None):
621 self.send_packet(DHCP6_Advertise, t1, t2, iapdopt)
623 def send_reply(self, t1=None, t2=None, iapdopt=None):
624 self.send_packet(DHCP6_Reply, t1, t2, iapdopt)
626 def test_T1_and_T2_timeouts(self):
627 """ Test T1 and T2 timeouts """
629 self.wait_for_solicit()
630 self.send_advertise()
631 self.wait_for_request()
636 self.wait_for_renew()
638 self.pg_enable_capture(self.pg_interfaces)
642 self.wait_for_rebind()
644 def test_prefixes(self):
645 """ Test handling of prefixes """
647 address1 = '::2:0:0:0:405/60'
648 address2 = '::76:0:0:0:406/62'
650 self.vapi.ip6_add_del_address_using_prefix(
651 sw_if_index=self.pg1.sw_if_index,
652 address_with_prefix=address1,
653 prefix_group=self.prefix_group)
655 ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=2,
658 self.wait_for_solicit()
659 self.send_advertise(t1=20, t2=40, iapdopt=ia_pd_opts)
660 self.wait_for_request()
661 self.send_reply(t1=20, t2=40, iapdopt=ia_pd_opts)
664 # check FIB for new address
665 new_addresses = self.get_addresses()
666 self.assertEqual(len(new_addresses), 1)
667 addr = list(new_addresses)[0]
668 self.assertEqual(addr, '7:8:0:2::405')
672 self.vapi.ip6_add_del_address_using_prefix(
673 sw_if_index=self.pg1.sw_if_index,
674 address_with_prefix=address2,
675 prefix_group=self.prefix_group)
679 # check FIB contains 2 addresses
680 fib = self.vapi.ip_route_dump(0, True)
681 addresses = set(self.get_interface_addresses(fib, self.pg1))
682 new_addresses = addresses.difference(self.initial_addresses)
683 self.assertEqual(len(new_addresses), 2)
684 addr1 = list(new_addresses)[0]
685 addr2 = list(new_addresses)[1]
686 if addr1 == '7:8:0:76::406':
687 addr1, addr2 = addr2, addr1
688 self.assertEqual(addr1, '7:8:0:2::405')
689 self.assertEqual(addr2, '7:8:0:76::406')
693 # check that the addresses are deleted
694 fib = self.vapi.ip_route_dump(0, True)
695 addresses = set(self.get_interface_addresses(fib, self.pg1))
696 new_addresses = addresses.difference(self.initial_addresses)
697 self.assertEqual(len(new_addresses), 0)
700 if address1 is not None:
701 self.vapi.ip6_add_del_address_using_prefix(
702 sw_if_index=self.pg1.sw_if_index,
703 address_with_prefix=address1,
704 prefix_group=self.prefix_group, is_add=0)
705 if address2 is not None:
706 self.vapi.ip6_add_del_address_using_prefix(
707 sw_if_index=self.pg1.sw_if_index,
708 address_with_prefix=address2,
709 prefix_group=self.prefix_group, is_add=0)
711 def test_sending_client_messages_solicit(self):
712 """ VPP receives messages from DHCPv6 client """
714 self.wait_for_solicit()
715 self.send_packet(DHCP6_Solicit)
716 self.send_packet(DHCP6_Request)
717 self.send_packet(DHCP6_Renew)
718 self.send_packet(DHCP6_Rebind)
720 self.wait_for_solicit(is_resend=True)
722 def test_sending_inappropriate_packets(self):
723 """ Server sends messages with inappropriate message types """
725 self.wait_for_solicit()
727 self.wait_for_solicit(is_resend=True)
728 self.send_advertise()
729 self.wait_for_request()
730 self.send_advertise()
731 self.wait_for_request(is_resend=True)
733 self.wait_for_renew()
735 def test_no_prefix_available_in_advertise(self):
736 """ Advertise message contains NoPrefixAvail status code """
738 self.wait_for_solicit()
739 noavail = DHCP6OptStatusCode(statuscode=6) # NoPrefixAvail
740 self.send_advertise(iapdopt=noavail)
741 self.wait_for_solicit(is_resend=True)
743 def test_preferred_greater_than_valid_lifetime(self):
744 """ Preferred lifetime is greater than valid lifetime """
746 address1 = '::2:0:0:0:405/60'
748 self.vapi.ip6_add_del_address_using_prefix(
749 sw_if_index=self.pg1.sw_if_index,
750 address_with_prefix=address1,
751 prefix_group=self.prefix_group)
753 self.wait_for_solicit()
754 self.send_advertise()
755 self.wait_for_request()
756 ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=4,
758 self.send_reply(iapdopt=ia_pd_opts)
762 # check FIB contains no addresses
763 fib = self.vapi.ip_route_dump(0, True)
764 addresses = set(self.get_interface_addresses(fib, self.pg1))
765 new_addresses = addresses.difference(self.initial_addresses)
766 self.assertEqual(len(new_addresses), 0)
769 self.vapi.ip6_add_del_address_using_prefix(
770 sw_if_index=self.pg1.sw_if_index,
771 address_with_prefix=address1,
772 prefix_group=self.prefix_group,
775 def test_T1_greater_than_T2(self):
776 """ T1 is greater than T2 """
778 address1 = '::2:0:0:0:405/60'
780 self.vapi.ip6_add_del_address_using_prefix(
781 sw_if_index=self.pg1.sw_if_index,
782 address_with_prefix=address1,
783 prefix_group=self.prefix_group)
785 self.wait_for_solicit()
786 self.send_advertise()
787 self.wait_for_request()
788 ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=4,
790 self.send_reply(t1=80, t2=40, iapdopt=ia_pd_opts)
794 # check FIB contains no addresses
795 fib = self.vapi.ip_route_dump(0, True)
796 addresses = set(self.get_interface_addresses(fib, self.pg1))
797 new_addresses = addresses.difference(self.initial_addresses)
798 self.assertEqual(len(new_addresses), 0)
801 self.vapi.ip6_add_del_address_using_prefix(
802 sw_if_index=self.pg1.sw_if_index,
803 prefix_group=self.prefix_group,
804 address_with_prefix=address1,