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
24 from framework import VppTestCase
25 from asfframework import tag_fixme_vpp_workers, tag_run_solo
26 from vpp_papi import VppEnum
31 def ip6_normalize(ip6):
32 return inet_ntop(AF_INET6, inet_pton(AF_INET6, ip6))
35 class TestDHCPv6DataPlane(VppTestCase):
36 """DHCPv6 Data Plane Test Case"""
40 super(TestDHCPv6DataPlane, cls).setUpClass()
43 def tearDownClass(cls):
44 super(TestDHCPv6DataPlane, cls).tearDownClass()
47 super(TestDHCPv6DataPlane, self).setUp()
49 self.create_pg_interfaces(range(1))
50 self.interfaces = list(self.pg_interfaces)
51 for i in self.interfaces:
55 self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac)
58 for i in self.interfaces:
61 super(TestDHCPv6DataPlane, self).tearDown()
63 def test_dhcp_ia_na_send_solicit_receive_advertise(self):
64 """Verify DHCPv6 IA NA Solicit packet and Advertise event"""
66 self.vapi.dhcp6_clients_enable_disable(enable=1)
68 self.pg_enable_capture(self.pg_interfaces)
70 address = {"address": "1:2:3::5", "preferred_time": 60, "valid_time": 120}
71 self.vapi.dhcp6_send_client_message(
72 server_index=0xFFFFFFFF,
74 msg_type=VppEnum.vl_api_dhcpv6_msg_type_t.DHCPV6_MSG_API_SOLICIT,
75 sw_if_index=self.pg0.sw_if_index,
79 n_addresses=len([address]),
81 rx_list = self.pg0.get_capture(1)
82 self.assertEqual(len(rx_list), 1)
85 self.assertEqual(packet.haslayer(IPv6), 1)
86 self.assertEqual(packet[IPv6].haslayer(DHCP6_Solicit), 1)
88 client_duid = packet[DHCP6OptClientId].duid
89 trid = packet[DHCP6_Solicit].trid
91 dst = ip6_normalize(packet[IPv6].dst)
92 dst2 = ip6_normalize("ff02::1:2")
93 self.assert_equal(dst, dst2)
94 src = ip6_normalize(packet[IPv6].src)
95 src2 = ip6_normalize(self.pg0.local_ip6_ll)
96 self.assert_equal(src, src2)
97 ia_na = packet[DHCP6OptIA_NA]
98 self.assert_equal(ia_na.T1, 20)
99 self.assert_equal(ia_na.T2, 40)
100 self.assert_equal(len(ia_na.ianaopts), 1)
101 address = ia_na.ianaopts[0]
102 self.assert_equal(address.addr, "1:2:3::5")
103 self.assert_equal(address.preflft, 60)
104 self.assert_equal(address.validlft, 120)
106 self.vapi.want_dhcp6_reply_events(enable_disable=1, pid=os.getpid())
109 ia_na_opts = DHCP6OptIAAddress(addr="7:8::2", preflft=60, validlft=120)
111 Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
113 src=util.mk_ll_addr(self.pg0.remote_mac), dst=self.pg0.local_ip6_ll
115 / UDP(sport=547, dport=546)
116 / DHCP6_Advertise(trid=trid)
117 / DHCP6OptServerId(duid=self.server_duid)
118 / DHCP6OptClientId(duid=client_duid)
119 / DHCP6OptPref(prefval=7)
120 / DHCP6OptStatusCode(statuscode=1)
121 / DHCP6OptIA_NA(iaid=1, T1=20, T2=40, ianaopts=ia_na_opts)
123 self.pg0.add_stream([p])
126 ev = self.vapi.wait_for_event(1, "dhcp6_reply_event")
128 self.assert_equal(ev.preference, 7)
129 self.assert_equal(ev.status_code, 1)
130 self.assert_equal(ev.T1, 20)
131 self.assert_equal(ev.T2, 40)
133 reported_address = ev.addresses[0]
134 address = ia_na_opts.getfieldval("addr")
135 self.assert_equal(str(reported_address.address), address)
137 reported_address.preferred_time, ia_na_opts.getfieldval("preflft")
140 reported_address.valid_time, ia_na_opts.getfieldval("validlft")
144 self.vapi.want_dhcp6_reply_events(enable_disable=0)
145 self.vapi.dhcp6_clients_enable_disable(enable=0)
147 def test_dhcp_pd_send_solicit_receive_advertise(self):
148 """Verify DHCPv6 PD Solicit packet and Advertise event"""
150 self.vapi.dhcp6_clients_enable_disable(enable=1)
152 self.pg_enable_capture(self.pg_interfaces)
156 "prefix": {"address": "1:2:3::", "len": 50},
157 "preferred_time": 60,
161 self.vapi.dhcp6_pd_send_client_message(
162 server_index=0xFFFFFFFF,
164 msg_type=VppEnum.vl_api_dhcpv6_msg_type_t.DHCPV6_MSG_API_SOLICIT,
165 sw_if_index=self.pg0.sw_if_index,
169 n_prefixes=len(prefixes),
171 rx_list = self.pg0.get_capture(1)
172 self.assertEqual(len(rx_list), 1)
175 self.assertEqual(packet.haslayer(IPv6), 1)
176 self.assertEqual(packet[IPv6].haslayer(DHCP6_Solicit), 1)
178 client_duid = packet[DHCP6OptClientId].duid
179 trid = packet[DHCP6_Solicit].trid
181 dst = ip6_normalize(packet[IPv6].dst)
182 dst2 = ip6_normalize("ff02::1:2")
183 self.assert_equal(dst, dst2)
184 src = ip6_normalize(packet[IPv6].src)
185 src2 = ip6_normalize(self.pg0.local_ip6_ll)
186 self.assert_equal(src, src2)
187 ia_pd = packet[DHCP6OptIA_PD]
188 self.assert_equal(ia_pd.T1, 20)
189 self.assert_equal(ia_pd.T2, 40)
190 self.assert_equal(len(ia_pd.iapdopt), 1)
191 prefix = ia_pd.iapdopt[0]
192 self.assert_equal(prefix.prefix, "1:2:3::")
193 self.assert_equal(prefix.plen, 50)
194 self.assert_equal(prefix.preflft, 60)
195 self.assert_equal(prefix.validlft, 120)
197 self.vapi.want_dhcp6_pd_reply_events(enable_disable=1, pid=os.getpid())
200 ia_pd_opts = DHCP6OptIAPrefix(
201 prefix="7:8::", plen=56, preflft=60, validlft=120
204 Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
206 src=util.mk_ll_addr(self.pg0.remote_mac), dst=self.pg0.local_ip6_ll
208 / UDP(sport=547, dport=546)
209 / DHCP6_Advertise(trid=trid)
210 / DHCP6OptServerId(duid=self.server_duid)
211 / DHCP6OptClientId(duid=client_duid)
212 / DHCP6OptPref(prefval=7)
213 / DHCP6OptStatusCode(statuscode=1)
214 / DHCP6OptIA_PD(iaid=1, T1=20, T2=40, iapdopt=ia_pd_opts)
216 self.pg0.add_stream([p])
219 ev = self.vapi.wait_for_event(1, "dhcp6_pd_reply_event")
221 self.assert_equal(ev.preference, 7)
222 self.assert_equal(ev.status_code, 1)
223 self.assert_equal(ev.T1, 20)
224 self.assert_equal(ev.T2, 40)
226 reported_prefix = ev.prefixes[0]
227 prefix = ia_pd_opts.getfieldval("prefix")
228 self.assert_equal(str(reported_prefix.prefix).split("/")[0], prefix)
230 int(str(reported_prefix.prefix).split("/")[1]),
231 ia_pd_opts.getfieldval("plen"),
234 reported_prefix.preferred_time, ia_pd_opts.getfieldval("preflft")
237 reported_prefix.valid_time, ia_pd_opts.getfieldval("validlft")
241 self.vapi.want_dhcp6_pd_reply_events(enable_disable=0)
242 self.vapi.dhcp6_clients_enable_disable(enable=0)
246 class TestDHCPv6IANAControlPlane(VppTestCase):
247 """DHCPv6 IA NA Control Plane Test Case"""
251 super(TestDHCPv6IANAControlPlane, cls).setUpClass()
254 def tearDownClass(cls):
255 super(TestDHCPv6IANAControlPlane, cls).tearDownClass()
258 super(TestDHCPv6IANAControlPlane, self).setUp()
260 self.create_pg_interfaces(range(1))
261 self.interfaces = list(self.pg_interfaces)
262 for i in self.interfaces:
265 self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac)
266 self.client_duid = None
270 fib = self.vapi.ip_route_dump(0, True)
271 self.initial_addresses = set(self.get_interface_addresses(fib, self.pg0))
273 self.pg_enable_capture(self.pg_interfaces)
276 self.vapi.dhcp6_client_enable_disable(
277 sw_if_index=self.pg0.sw_if_index, enable=1
281 self.vapi.dhcp6_client_enable_disable(
282 sw_if_index=self.pg0.sw_if_index, enable=0
285 for i in self.interfaces:
288 super(TestDHCPv6IANAControlPlane, self).tearDown()
291 def get_interface_addresses(fib, pg):
294 if entry.route.prefix.prefixlen == 128:
295 path = entry.route.paths[0]
296 if path.sw_if_index == pg.sw_if_index:
297 lst.append(str(entry.route.prefix.network_address))
300 def get_addresses(self):
301 fib = self.vapi.ip_route_dump(0, True)
302 addresses = set(self.get_interface_addresses(fib, self.pg0))
303 return addresses.difference(self.initial_addresses)
305 def validate_duid_ll(self, duid):
308 def validate_packet(self, packet, msg_type, is_resend=False):
310 self.assertEqual(packet.haslayer(msg_type), 1)
311 client_duid = packet[DHCP6OptClientId].duid
312 if self.client_duid is None:
313 self.client_duid = client_duid
314 self.validate_duid_ll(client_duid)
316 self.assertEqual(self.client_duid, client_duid)
317 if msg_type != DHCP6_Solicit and msg_type != DHCP6_Rebind:
318 server_duid = packet[DHCP6OptServerId].duid
319 self.assertEqual(server_duid, self.server_duid)
321 self.assertEqual(self.trid, packet[msg_type].trid)
323 self.trid = packet[msg_type].trid
326 self.assertEqual(ip.dst, "ff02::1:2")
327 self.assertEqual(udp.sport, 546)
328 self.assertEqual(udp.dport, 547)
329 dhcpv6 = packet[msg_type]
330 elapsed_time = dhcpv6[DHCP6OptElapsedTime]
332 self.assertNotEqual(elapsed_time.elapsedtime, 0)
334 self.assertEqual(elapsed_time.elapsedtime, 0)
335 except BaseException:
339 def wait_for_packet(self, msg_type, timeout=None, is_resend=False):
342 rx_list = self.pg0.get_capture(1, timeout=timeout)
344 self.validate_packet(packet, msg_type, is_resend=is_resend)
346 def wait_for_solicit(self, timeout=None, is_resend=False):
347 self.wait_for_packet(DHCP6_Solicit, timeout, is_resend=is_resend)
349 def wait_for_request(self, timeout=None, is_resend=False):
350 self.wait_for_packet(DHCP6_Request, timeout, is_resend=is_resend)
352 def wait_for_renew(self, timeout=None, is_resend=False):
353 self.wait_for_packet(DHCP6_Renew, timeout, is_resend=is_resend)
355 def wait_for_rebind(self, timeout=None, is_resend=False):
356 self.wait_for_packet(DHCP6_Rebind, timeout, is_resend=is_resend)
358 def wait_for_release(self, timeout=None, is_resend=False):
359 self.wait_for_packet(DHCP6_Release, timeout, is_resend=is_resend)
361 def send_packet(self, msg_type, t1=None, t2=None, ianaopts=None):
367 opt_ia_na = DHCP6OptIA_NA(iaid=1, T1=t1, T2=t2)
369 opt_ia_na = DHCP6OptIA_NA(iaid=1, T1=t1, T2=t2, ianaopts=ianaopts)
371 Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
372 / IPv6(src=util.mk_ll_addr(self.pg0.remote_mac), dst=self.pg0.local_ip6_ll)
373 / UDP(sport=547, dport=546)
374 / msg_type(trid=self.trid)
375 / DHCP6OptServerId(duid=self.server_duid)
376 / DHCP6OptClientId(duid=self.client_duid)
379 self.pg0.add_stream([p])
380 self.pg_enable_capture(self.pg_interfaces)
383 def send_advertise(self, t1=None, t2=None, ianaopts=None):
384 self.send_packet(DHCP6_Advertise, t1, t2, ianaopts)
386 def send_reply(self, t1=None, t2=None, ianaopts=None):
387 self.send_packet(DHCP6_Reply, t1, t2, ianaopts)
389 def test_T1_and_T2_timeouts(self):
390 """Test T1 and T2 timeouts"""
392 self.wait_for_solicit()
393 self.send_advertise()
394 self.wait_for_request()
399 self.wait_for_renew()
401 self.pg_enable_capture(self.pg_interfaces)
405 self.wait_for_rebind()
407 def test_addresses(self):
408 """Test handling of addresses"""
410 ia_na_opts = DHCP6OptIAAddress(addr="7:8::2", preflft=1, validlft=2)
412 self.wait_for_solicit()
413 self.send_advertise(t1=20, t2=40, ianaopts=ia_na_opts)
414 self.wait_for_request()
415 self.send_reply(t1=20, t2=40, ianaopts=ia_na_opts)
418 # check FIB for new address
419 new_addresses = self.get_addresses()
420 self.assertEqual(len(new_addresses), 1)
421 addr = list(new_addresses)[0]
422 self.assertEqual(addr, "7:8::2")
426 # check that the address is deleted
427 fib = self.vapi.ip_route_dump(0, True)
428 addresses = set(self.get_interface_addresses(fib, self.pg0))
429 new_addresses = addresses.difference(self.initial_addresses)
430 self.assertEqual(len(new_addresses), 0)
432 def test_sending_client_messages_solicit(self):
433 """VPP receives messages from DHCPv6 client"""
435 self.wait_for_solicit()
436 self.send_packet(DHCP6_Solicit)
437 self.send_packet(DHCP6_Request)
438 self.send_packet(DHCP6_Renew)
439 self.send_packet(DHCP6_Rebind)
441 self.wait_for_solicit(is_resend=True)
443 def test_sending_inappropriate_packets(self):
444 """Server sends messages with inappropriate message types"""
446 self.wait_for_solicit()
448 self.wait_for_solicit(is_resend=True)
449 self.send_advertise()
450 self.wait_for_request()
451 self.send_advertise()
452 self.wait_for_request(is_resend=True)
454 self.wait_for_renew()
456 def test_no_address_available_in_advertise(self):
457 """Advertise message contains NoAddrsAvail status code"""
459 self.wait_for_solicit()
460 noavail = DHCP6OptStatusCode(statuscode=2) # NoAddrsAvail
461 self.send_advertise(ianaopts=noavail)
462 self.wait_for_solicit(is_resend=True)
464 def test_preferred_greater_than_valid_lifetime(self):
465 """Preferred lifetime is greater than valid lifetime"""
467 self.wait_for_solicit()
468 self.send_advertise()
469 self.wait_for_request()
470 ia_na_opts = DHCP6OptIAAddress(addr="7:8::2", preflft=4, validlft=3)
471 self.send_reply(ianaopts=ia_na_opts)
475 # check FIB contains no addresses
476 fib = self.vapi.ip_route_dump(0, True)
477 addresses = set(self.get_interface_addresses(fib, self.pg0))
478 new_addresses = addresses.difference(self.initial_addresses)
479 self.assertEqual(len(new_addresses), 0)
481 def test_T1_greater_than_T2(self):
482 """T1 is greater than T2"""
484 self.wait_for_solicit()
485 self.send_advertise()
486 self.wait_for_request()
487 ia_na_opts = DHCP6OptIAAddress(addr="7:8::2", preflft=4, validlft=8)
488 self.send_reply(t1=80, t2=40, ianaopts=ia_na_opts)
492 # check FIB contains no addresses
493 fib = self.vapi.ip_route_dump(0, True)
494 addresses = set(self.get_interface_addresses(fib, self.pg0))
495 new_addresses = addresses.difference(self.initial_addresses)
496 self.assertEqual(len(new_addresses), 0)
499 @tag_fixme_vpp_workers
500 class TestDHCPv6PDControlPlane(VppTestCase):
501 """DHCPv6 PD Control Plane Test Case"""
505 super(TestDHCPv6PDControlPlane, cls).setUpClass()
508 def tearDownClass(cls):
509 super(TestDHCPv6PDControlPlane, cls).tearDownClass()
512 super(TestDHCPv6PDControlPlane, self).setUp()
514 self.create_pg_interfaces(range(2))
515 self.interfaces = list(self.pg_interfaces)
516 for i in self.interfaces:
519 self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac)
520 self.client_duid = None
524 fib = self.vapi.ip_route_dump(0, True)
525 self.initial_addresses = set(self.get_interface_addresses(fib, self.pg1))
527 self.pg_enable_capture(self.pg_interfaces)
530 self.prefix_group = "my-pd-prefix-group"
532 self.vapi.dhcp6_pd_client_enable_disable(
533 enable=1, sw_if_index=self.pg0.sw_if_index, prefix_group=self.prefix_group
537 self.vapi.dhcp6_pd_client_enable_disable(self.pg0.sw_if_index, enable=0)
539 for i in self.interfaces:
542 super(TestDHCPv6PDControlPlane, self).tearDown()
545 def get_interface_addresses(fib, pg):
548 if entry.route.prefix.prefixlen == 128:
549 path = entry.route.paths[0]
550 if path.sw_if_index == pg.sw_if_index:
551 lst.append(str(entry.route.prefix.network_address))
554 def get_addresses(self):
555 fib = self.vapi.ip_route_dump(0, True)
556 addresses = set(self.get_interface_addresses(fib, self.pg1))
557 return addresses.difference(self.initial_addresses)
559 def validate_duid_ll(self, duid):
562 def validate_packet(self, packet, msg_type, is_resend=False):
564 self.assertEqual(packet.haslayer(msg_type), 1)
565 client_duid = packet[DHCP6OptClientId].duid
566 if self.client_duid is None:
567 self.client_duid = client_duid
568 self.validate_duid_ll(client_duid)
570 self.assertEqual(self.client_duid, client_duid)
571 if msg_type != DHCP6_Solicit and msg_type != DHCP6_Rebind:
572 server_duid = packet[DHCP6OptServerId].duid
573 self.assertEqual(server_duid, self.server_duid)
575 self.assertEqual(self.trid, packet[msg_type].trid)
577 self.trid = packet[msg_type].trid
580 self.assertEqual(ip.dst, "ff02::1:2")
581 self.assertEqual(udp.sport, 546)
582 self.assertEqual(udp.dport, 547)
583 dhcpv6 = packet[msg_type]
584 elapsed_time = dhcpv6[DHCP6OptElapsedTime]
586 self.assertNotEqual(elapsed_time.elapsedtime, 0)
588 self.assertEqual(elapsed_time.elapsedtime, 0)
589 except BaseException:
593 def wait_for_packet(self, msg_type, timeout=None, is_resend=False):
596 rx_list = self.pg0.get_capture(1, timeout=timeout)
598 self.validate_packet(packet, msg_type, is_resend=is_resend)
600 def wait_for_solicit(self, timeout=None, is_resend=False):
601 self.wait_for_packet(DHCP6_Solicit, timeout, is_resend=is_resend)
603 def wait_for_request(self, timeout=None, is_resend=False):
604 self.wait_for_packet(DHCP6_Request, timeout, is_resend=is_resend)
606 def wait_for_renew(self, timeout=None, is_resend=False):
607 self.wait_for_packet(DHCP6_Renew, timeout, is_resend=is_resend)
609 def wait_for_rebind(self, timeout=None, is_resend=False):
610 self.wait_for_packet(DHCP6_Rebind, timeout, is_resend=is_resend)
612 def wait_for_release(self, timeout=None, is_resend=False):
613 self.wait_for_packet(DHCP6_Release, timeout, is_resend=is_resend)
615 def send_packet(self, msg_type, t1=None, t2=None, iapdopt=None):
621 opt_ia_pd = DHCP6OptIA_PD(iaid=1, T1=t1, T2=t2)
623 opt_ia_pd = DHCP6OptIA_PD(iaid=1, T1=t1, T2=t2, iapdopt=iapdopt)
625 Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
626 / IPv6(src=util.mk_ll_addr(self.pg0.remote_mac), dst=self.pg0.local_ip6_ll)
627 / UDP(sport=547, dport=546)
628 / msg_type(trid=self.trid)
629 / DHCP6OptServerId(duid=self.server_duid)
630 / DHCP6OptClientId(duid=self.client_duid)
633 self.pg0.add_stream([p])
634 self.pg_enable_capture(self.pg_interfaces)
637 def send_advertise(self, t1=None, t2=None, iapdopt=None):
638 self.send_packet(DHCP6_Advertise, t1, t2, iapdopt)
640 def send_reply(self, t1=None, t2=None, iapdopt=None):
641 self.send_packet(DHCP6_Reply, t1, t2, iapdopt)
643 def test_T1_and_T2_timeouts(self):
644 """Test T1 and T2 timeouts"""
646 self.wait_for_solicit()
647 self.send_advertise()
648 self.wait_for_request()
653 self.wait_for_renew()
655 self.pg_enable_capture(self.pg_interfaces)
659 self.wait_for_rebind()
661 def test_prefixes(self):
662 """Test handling of prefixes"""
664 address1 = "::2:0:0:0:405/60"
665 address2 = "::76:0:0:0:406/62"
667 self.vapi.ip6_add_del_address_using_prefix(
668 sw_if_index=self.pg1.sw_if_index,
669 address_with_prefix=address1,
670 prefix_group=self.prefix_group,
673 ia_pd_opts = DHCP6OptIAPrefix(
674 prefix="7:8::", plen=56, preflft=2, validlft=3
677 self.wait_for_solicit()
678 self.send_advertise(t1=20, t2=40, iapdopt=ia_pd_opts)
679 self.wait_for_request()
680 self.send_reply(t1=20, t2=40, iapdopt=ia_pd_opts)
683 # check FIB for new address
684 new_addresses = self.get_addresses()
685 self.assertEqual(len(new_addresses), 1)
686 addr = list(new_addresses)[0]
687 self.assertEqual(addr, "7:8:0:2::405")
691 self.vapi.ip6_add_del_address_using_prefix(
692 sw_if_index=self.pg1.sw_if_index,
693 address_with_prefix=address2,
694 prefix_group=self.prefix_group,
699 # check FIB contains 2 addresses
700 fib = self.vapi.ip_route_dump(0, True)
701 addresses = set(self.get_interface_addresses(fib, self.pg1))
702 new_addresses = addresses.difference(self.initial_addresses)
703 self.assertEqual(len(new_addresses), 2)
704 addr1 = list(new_addresses)[0]
705 addr2 = list(new_addresses)[1]
706 if addr1 == "7:8:0:76::406":
707 addr1, addr2 = addr2, addr1
708 self.assertEqual(addr1, "7:8:0:2::405")
709 self.assertEqual(addr2, "7:8:0:76::406")
713 # check that the addresses are deleted
714 fib = self.vapi.ip_route_dump(0, True)
715 addresses = set(self.get_interface_addresses(fib, self.pg1))
716 new_addresses = addresses.difference(self.initial_addresses)
717 self.assertEqual(len(new_addresses), 0)
720 if address1 is not None:
721 self.vapi.ip6_add_del_address_using_prefix(
722 sw_if_index=self.pg1.sw_if_index,
723 address_with_prefix=address1,
724 prefix_group=self.prefix_group,
727 if address2 is not None:
728 self.vapi.ip6_add_del_address_using_prefix(
729 sw_if_index=self.pg1.sw_if_index,
730 address_with_prefix=address2,
731 prefix_group=self.prefix_group,
735 def test_sending_client_messages_solicit(self):
736 """VPP receives messages from DHCPv6 client"""
738 self.wait_for_solicit()
739 self.send_packet(DHCP6_Solicit)
740 self.send_packet(DHCP6_Request)
741 self.send_packet(DHCP6_Renew)
742 self.send_packet(DHCP6_Rebind)
744 self.wait_for_solicit(is_resend=True)
746 def test_sending_inappropriate_packets(self):
747 """Server sends messages with inappropriate message types"""
749 self.wait_for_solicit()
751 self.wait_for_solicit(is_resend=True)
752 self.send_advertise()
753 self.wait_for_request()
754 self.send_advertise()
755 self.wait_for_request(is_resend=True)
757 self.wait_for_renew()
759 def test_no_prefix_available_in_advertise(self):
760 """Advertise message contains NoPrefixAvail status code"""
762 self.wait_for_solicit()
763 noavail = DHCP6OptStatusCode(statuscode=6) # NoPrefixAvail
764 self.send_advertise(iapdopt=noavail)
765 self.wait_for_solicit(is_resend=True)
767 def test_preferred_greater_than_valid_lifetime(self):
768 """Preferred lifetime is greater than valid lifetime"""
770 address1 = "::2:0:0:0:405/60"
772 self.vapi.ip6_add_del_address_using_prefix(
773 sw_if_index=self.pg1.sw_if_index,
774 address_with_prefix=address1,
775 prefix_group=self.prefix_group,
778 self.wait_for_solicit()
779 self.send_advertise()
780 self.wait_for_request()
781 ia_pd_opts = DHCP6OptIAPrefix(
782 prefix="7:8::", plen=56, preflft=4, validlft=3
784 self.send_reply(iapdopt=ia_pd_opts)
788 # check FIB contains no addresses
789 fib = self.vapi.ip_route_dump(0, True)
790 addresses = set(self.get_interface_addresses(fib, self.pg1))
791 new_addresses = addresses.difference(self.initial_addresses)
792 self.assertEqual(len(new_addresses), 0)
795 self.vapi.ip6_add_del_address_using_prefix(
796 sw_if_index=self.pg1.sw_if_index,
797 address_with_prefix=address1,
798 prefix_group=self.prefix_group,
802 def test_T1_greater_than_T2(self):
803 """T1 is greater than T2"""
805 address1 = "::2:0:0:0:405/60"
807 self.vapi.ip6_add_del_address_using_prefix(
808 sw_if_index=self.pg1.sw_if_index,
809 address_with_prefix=address1,
810 prefix_group=self.prefix_group,
813 self.wait_for_solicit()
814 self.send_advertise()
815 self.wait_for_request()
816 ia_pd_opts = DHCP6OptIAPrefix(
817 prefix="7:8::", plen=56, preflft=4, validlft=8
819 self.send_reply(t1=80, t2=40, iapdopt=ia_pd_opts)
823 # check FIB contains no addresses
824 fib = self.vapi.ip_route_dump(0, True)
825 addresses = set(self.get_interface_addresses(fib, self.pg1))
826 new_addresses = addresses.difference(self.initial_addresses)
827 self.assertEqual(len(new_addresses), 0)
830 self.vapi.ip6_add_del_address_using_prefix(
831 sw_if_index=self.pg1.sw_if_index,
832 prefix_group=self.prefix_group,
833 address_with_prefix=address1,