4 from socket import inet_pton, inet_ntop
7 from parameterized import parameterized
9 import scapy.layers.inet6 as inet6
10 from scapy.contrib.mpls import MPLS
11 from scapy.layers.inet6 import IPv6, ICMPv6ND_NS, ICMPv6ND_RS, \
12 ICMPv6ND_RA, ICMPv6NDOptMTU, ICMPv6NDOptSrcLLAddr, ICMPv6NDOptPrefixInfo, \
13 ICMPv6ND_NA, ICMPv6NDOptDstLLAddr, ICMPv6DestUnreach, icmp6types, \
14 ICMPv6TimeExceeded, ICMPv6EchoRequest, ICMPv6EchoReply, \
15 IPv6ExtHdrHopByHop, ICMPv6MLReport2, ICMPv6MLDMultAddrRec
16 from scapy.layers.l2 import Ether, Dot1Q
17 from scapy.packet import Raw
18 from scapy.utils6 import in6_getnsma, in6_getnsmac, in6_ptop, in6_islladdr, \
22 from framework import VppTestCase, VppTestRunner
23 from util import ppp, ip6_normalize, mk_ll_addr
24 from vpp_papi import VppEnum
25 from vpp_ip import DpoProto, VppIpPuntPolicer, VppIpPuntRedirect
26 from vpp_ip_route import VppIpRoute, VppRoutePath, find_route, VppIpMRoute, \
27 VppMRoutePath, VppMplsIpBind, \
28 VppMplsRoute, VppMplsTable, VppIpTable, FibPathType, FibPathProto, \
29 VppIpInterfaceAddress, find_route_in_dump, find_mroute_in_dump, \
30 VppIp6LinkLocalAddress
31 from vpp_neighbor import find_nbr, VppNeighbor
32 from vpp_pg_interface import is_ipv6_misc
33 from vpp_sub_interface import VppSubInterface, VppDot1QSubint
34 from vpp_policer import VppPolicer
35 from ipaddress import IPv6Network, IPv6Address
37 AF_INET6 = socket.AF_INET6
47 class TestIPv6ND(VppTestCase):
48 def validate_ra(self, intf, rx, dst_ip=None):
50 dst_ip = intf.remote_ip6
52 # unicasted packets must come to the unicast mac
53 self.assertEqual(rx[Ether].dst, intf.remote_mac)
55 # and from the router's MAC
56 self.assertEqual(rx[Ether].src, intf.local_mac)
58 # the rx'd RA should be addressed to the sender's source
59 self.assertTrue(rx.haslayer(ICMPv6ND_RA))
60 self.assertEqual(in6_ptop(rx[IPv6].dst),
63 # and come from the router's link local
64 self.assertTrue(in6_islladdr(rx[IPv6].src))
65 self.assertEqual(in6_ptop(rx[IPv6].src),
66 in6_ptop(mk_ll_addr(intf.local_mac)))
68 def validate_na(self, intf, rx, dst_ip=None, tgt_ip=None):
70 dst_ip = intf.remote_ip6
72 dst_ip = intf.local_ip6
74 # unicasted packets must come to the unicast mac
75 self.assertEqual(rx[Ether].dst, intf.remote_mac)
77 # and from the router's MAC
78 self.assertEqual(rx[Ether].src, intf.local_mac)
80 # the rx'd NA should be addressed to the sender's source
81 self.assertTrue(rx.haslayer(ICMPv6ND_NA))
82 self.assertEqual(in6_ptop(rx[IPv6].dst),
85 # and come from the target address
87 in6_ptop(rx[IPv6].src), in6_ptop(tgt_ip))
89 # Dest link-layer options should have the router's MAC
90 dll = rx[ICMPv6NDOptDstLLAddr]
91 self.assertEqual(dll.lladdr, intf.local_mac)
93 def validate_ns(self, intf, rx, tgt_ip):
94 nsma = in6_getnsma(inet_pton(AF_INET6, tgt_ip))
95 dst_ip = inet_ntop(AF_INET6, nsma)
98 self.assertEqual(rx[Ether].dst, in6_getnsmac(nsma))
100 # and from the router's MAC
101 self.assertEqual(rx[Ether].src, intf.local_mac)
103 # the rx'd NS should be addressed to an mcast address
104 # derived from the target address
106 in6_ptop(rx[IPv6].dst), in6_ptop(dst_ip))
108 # expect the tgt IP in the NS header
110 self.assertEqual(in6_ptop(ns.tgt), in6_ptop(tgt_ip))
112 # packet is from the router's local address
114 in6_ptop(rx[IPv6].src), intf.local_ip6)
116 # Src link-layer options should have the router's MAC
117 sll = rx[ICMPv6NDOptSrcLLAddr]
118 self.assertEqual(sll.lladdr, intf.local_mac)
120 def send_and_expect_ra(self, intf, pkts, remark, dst_ip=None,
121 filter_out_fn=is_ipv6_misc):
122 intf.add_stream(pkts)
123 self.pg_enable_capture(self.pg_interfaces)
125 rx = intf.get_capture(1, filter_out_fn=filter_out_fn)
127 self.assertEqual(len(rx), 1)
129 self.validate_ra(intf, rx, dst_ip)
131 def send_and_expect_na(self, intf, pkts, remark, dst_ip=None,
133 filter_out_fn=is_ipv6_misc):
134 intf.add_stream(pkts)
135 self.pg_enable_capture(self.pg_interfaces)
137 rx = intf.get_capture(1, filter_out_fn=filter_out_fn)
139 self.assertEqual(len(rx), 1)
141 self.validate_na(intf, rx, dst_ip, tgt_ip)
143 def send_and_expect_ns(self, tx_intf, rx_intf, pkts, tgt_ip,
144 filter_out_fn=is_ipv6_misc):
145 self.vapi.cli("clear trace")
146 tx_intf.add_stream(pkts)
147 self.pg_enable_capture(self.pg_interfaces)
149 rx = rx_intf.get_capture(1, filter_out_fn=filter_out_fn)
151 self.assertEqual(len(rx), 1)
153 self.validate_ns(rx_intf, rx, tgt_ip)
155 def verify_ip(self, rx, smac, dmac, sip, dip):
157 self.assertEqual(ether.dst, dmac)
158 self.assertEqual(ether.src, smac)
161 self.assertEqual(ip.src, sip)
162 self.assertEqual(ip.dst, dip)
165 class TestIPv6(TestIPv6ND):
166 """ IPv6 Test Case """
174 super(TestIPv6, cls).setUpClass()
177 def tearDownClass(cls):
178 super(TestIPv6, cls).tearDownClass()
182 Perform test setup before test case.
185 - create 3 pg interfaces
186 - untagged pg0 interface
187 - Dot1Q subinterface on pg1
188 - Dot1AD subinterface on pg2
190 - put it into UP state
192 - resolve neighbor address using NDP
193 - configure 200 fib entries
195 :ivar list interfaces: pg interfaces and subinterfaces.
196 :ivar dict flows: IPv4 packet flows in test.
198 *TODO:* Create AD sub interface
200 super(TestIPv6, self).setUp()
202 # create 3 pg interfaces
203 self.create_pg_interfaces(range(3))
205 # create 2 subinterfaces for p1 and pg2
206 self.sub_interfaces = [
207 VppDot1QSubint(self, self.pg1, 100),
208 VppDot1QSubint(self, self.pg2, 200)
209 # TODO: VppDot1ADSubint(self, self.pg2, 200, 300, 400)
212 # packet flows mapping pg0 -> pg1.sub, pg2.sub, etc.
214 self.flows[self.pg0] = [self.pg1.sub_if, self.pg2.sub_if]
215 self.flows[self.pg1.sub_if] = [self.pg0, self.pg2.sub_if]
216 self.flows[self.pg2.sub_if] = [self.pg0, self.pg1.sub_if]
219 self.pg_if_packet_sizes = [64, 1500, 9020]
221 self.interfaces = list(self.pg_interfaces)
222 self.interfaces.extend(self.sub_interfaces)
224 # setup all interfaces
225 for i in self.interfaces:
231 """Run standard test teardown and log ``show ip6 neighbors``."""
232 for i in self.interfaces:
235 for i in self.sub_interfaces:
236 i.remove_vpp_config()
238 super(TestIPv6, self).tearDown()
239 if not self.vpp_dead:
240 self.logger.info(self.vapi.cli("show ip6 neighbors"))
241 # info(self.vapi.cli("show ip6 fib")) # many entries
243 def modify_packet(self, src_if, packet_size, pkt):
244 """Add load, set destination IP and extend packet to required packet
245 size for defined interface.
247 :param VppInterface src_if: Interface to create packet for.
248 :param int packet_size: Required packet size.
249 :param Scapy pkt: Packet to be modified.
251 dst_if_idx = int(packet_size / 10 % 2)
252 dst_if = self.flows[src_if][dst_if_idx]
253 info = self.create_packet_info(src_if, dst_if)
254 payload = self.info_to_payload(info)
255 p = pkt / Raw(payload)
256 p[IPv6].dst = dst_if.remote_ip6
258 if isinstance(src_if, VppSubInterface):
259 p = src_if.add_dot1_layer(p)
260 self.extend_packet(p, packet_size)
264 def create_stream(self, src_if):
265 """Create input packet stream for defined interface.
267 :param VppInterface src_if: Interface to create packet stream for.
269 hdr_ext = 4 if isinstance(src_if, VppSubInterface) else 0
270 pkt_tmpl = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
271 IPv6(src=src_if.remote_ip6) /
272 inet6.UDP(sport=1234, dport=1234))
274 pkts = [self.modify_packet(src_if, i, pkt_tmpl)
275 for i in moves.range(self.pg_if_packet_sizes[0],
276 self.pg_if_packet_sizes[1], 10)]
277 pkts_b = [self.modify_packet(src_if, i, pkt_tmpl)
278 for i in moves.range(self.pg_if_packet_sizes[1] + hdr_ext,
279 self.pg_if_packet_sizes[2] + hdr_ext,
285 def verify_capture(self, dst_if, capture):
286 """Verify captured input packet stream for defined interface.
288 :param VppInterface dst_if: Interface to verify captured packet stream
290 :param list capture: Captured packet stream.
292 self.logger.info("Verifying capture on interface %s" % dst_if.name)
294 for i in self.interfaces:
295 last_info[i.sw_if_index] = None
297 dst_sw_if_index = dst_if.sw_if_index
298 if hasattr(dst_if, 'parent'):
300 for packet in capture:
302 # Check VLAN tags and Ethernet header
303 packet = dst_if.remove_dot1_layer(packet)
304 self.assertTrue(Dot1Q not in packet)
307 udp = packet[inet6.UDP]
308 payload_info = self.payload_to_info(packet[Raw])
309 packet_index = payload_info.index
310 self.assertEqual(payload_info.dst, dst_sw_if_index)
312 "Got packet on port %s: src=%u (id=%u)" %
313 (dst_if.name, payload_info.src, packet_index))
314 next_info = self.get_next_packet_info_for_interface2(
315 payload_info.src, dst_sw_if_index,
316 last_info[payload_info.src])
317 last_info[payload_info.src] = next_info
318 self.assertTrue(next_info is not None)
319 self.assertEqual(packet_index, next_info.index)
320 saved_packet = next_info.data
321 # Check standard fields
323 ip.src, saved_packet[IPv6].src)
325 ip.dst, saved_packet[IPv6].dst)
327 udp.sport, saved_packet[inet6.UDP].sport)
329 udp.dport, saved_packet[inet6.UDP].dport)
331 self.logger.error(ppp("Unexpected or invalid packet:", packet))
333 for i in self.interfaces:
334 remaining_packet = self.get_next_packet_info_for_interface2(
335 i.sw_if_index, dst_sw_if_index, last_info[i.sw_if_index])
336 self.assertTrue(remaining_packet is None,
337 "Interface %s: Packet expected from interface %s "
338 "didn't arrive" % (dst_if.name, i.name))
340 def test_next_header_anomaly(self):
341 """ IPv6 next header anomaly test
344 - ipv6 next header field = Fragment Header (44)
345 - next header is ICMPv6 Echo Request
346 - wait for reassembly
348 pkt = (Ether(src=self.pg0.local_mac, dst=self.pg0.remote_mac) /
349 IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6, nh=44) /
352 self.pg0.add_stream(pkt)
355 # wait for reassembly
362 - Create IPv6 stream for pg0 interface
363 - Create IPv6 tagged streams for pg1's and pg2's subinterface.
364 - Send and verify received packets on each interface.
367 pkts = self.create_stream(self.pg0)
368 self.pg0.add_stream(pkts)
370 for i in self.sub_interfaces:
371 pkts = self.create_stream(i)
372 i.parent.add_stream(pkts)
374 self.pg_enable_capture(self.pg_interfaces)
377 pkts = self.pg0.get_capture()
378 self.verify_capture(self.pg0, pkts)
380 for i in self.sub_interfaces:
381 pkts = i.parent.get_capture()
382 self.verify_capture(i, pkts)
385 """ IPv6 Neighbour Solicitation Exceptions
388 - Send an NS Sourced from an address not covered by the link sub-net
389 - Send an NS to an mcast address the router has not joined
390 - Send NS for a target address the router does not onn.
394 # An NS from a non link source address
396 nsma = in6_getnsma(inet_pton(AF_INET6, self.pg0.local_ip6))
397 d = inet_ntop(AF_INET6, nsma)
399 p = (Ether(dst=in6_getnsmac(nsma)) /
400 IPv6(dst=d, src="2002::2") /
401 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
402 ICMPv6NDOptSrcLLAddr(
403 lladdr=self.pg0.remote_mac))
406 self.send_and_assert_no_replies(
408 "No response to NS source by address not on sub-net")
411 # An NS for sent to a solicited mcast group the router is
412 # not a member of FAILS
415 nsma = in6_getnsma(inet_pton(AF_INET6, "fd::ffff"))
416 d = inet_ntop(AF_INET6, nsma)
418 p = (Ether(dst=in6_getnsmac(nsma)) /
419 IPv6(dst=d, src=self.pg0.remote_ip6) /
420 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
421 ICMPv6NDOptSrcLLAddr(
422 lladdr=self.pg0.remote_mac))
425 self.send_and_assert_no_replies(
427 "No response to NS sent to unjoined mcast address")
430 # An NS whose target address is one the router does not own
432 nsma = in6_getnsma(inet_pton(AF_INET6, self.pg0.local_ip6))
433 d = inet_ntop(AF_INET6, nsma)
435 p = (Ether(dst=in6_getnsmac(nsma)) /
436 IPv6(dst=d, src=self.pg0.remote_ip6) /
437 ICMPv6ND_NS(tgt="fd::ffff") /
438 ICMPv6NDOptSrcLLAddr(
439 lladdr=self.pg0.remote_mac))
442 self.send_and_assert_no_replies(self.pg0, pkts,
443 "No response to NS for unknown target")
446 # A neighbor entry that has no associated FIB-entry
448 self.pg0.generate_remote_hosts(4)
449 nd_entry = VppNeighbor(self,
450 self.pg0.sw_if_index,
451 self.pg0.remote_hosts[2].mac,
452 self.pg0.remote_hosts[2].ip6,
454 nd_entry.add_vpp_config()
457 # check we have the neighbor, but no route
459 self.assertTrue(find_nbr(self,
460 self.pg0.sw_if_index,
461 self.pg0._remote_hosts[2].ip6))
462 self.assertFalse(find_route(self,
463 self.pg0._remote_hosts[2].ip6,
467 # send an NS from a link local address to the interface's global
470 p = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
472 dst=d, src=self.pg0._remote_hosts[2].ip6_ll) /
473 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
474 ICMPv6NDOptSrcLLAddr(
475 lladdr=self.pg0.remote_mac))
477 self.send_and_expect_na(self.pg0, p,
478 "NS from link-local",
479 dst_ip=self.pg0._remote_hosts[2].ip6_ll,
480 tgt_ip=self.pg0.local_ip6)
483 # we should have learned an ND entry for the peer's link-local
484 # but not inserted a route to it in the FIB
486 self.assertTrue(find_nbr(self,
487 self.pg0.sw_if_index,
488 self.pg0._remote_hosts[2].ip6_ll))
489 self.assertFalse(find_route(self,
490 self.pg0._remote_hosts[2].ip6_ll,
494 # An NS to the router's own Link-local
496 p = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
498 dst=d, src=self.pg0._remote_hosts[3].ip6_ll) /
499 ICMPv6ND_NS(tgt=self.pg0.local_ip6_ll) /
500 ICMPv6NDOptSrcLLAddr(
501 lladdr=self.pg0.remote_mac))
503 self.send_and_expect_na(self.pg0, p,
504 "NS to/from link-local",
505 dst_ip=self.pg0._remote_hosts[3].ip6_ll,
506 tgt_ip=self.pg0.local_ip6_ll)
509 # we should have learned an ND entry for the peer's link-local
510 # but not inserted a route to it in the FIB
512 self.assertTrue(find_nbr(self,
513 self.pg0.sw_if_index,
514 self.pg0._remote_hosts[3].ip6_ll))
515 self.assertFalse(find_route(self,
516 self.pg0._remote_hosts[3].ip6_ll,
519 def test_ns_duplicates(self):
523 # Generate some hosts on the LAN
525 self.pg1.generate_remote_hosts(3)
528 # Add host 1 on pg1 and pg2
530 ns_pg1 = VppNeighbor(self,
531 self.pg1.sw_if_index,
532 self.pg1.remote_hosts[1].mac,
533 self.pg1.remote_hosts[1].ip6)
534 ns_pg1.add_vpp_config()
535 ns_pg2 = VppNeighbor(self,
536 self.pg2.sw_if_index,
538 self.pg1.remote_hosts[1].ip6)
539 ns_pg2.add_vpp_config()
542 # IP packet destined for pg1 remote host arrives on pg1 again.
544 p = (Ether(dst=self.pg0.local_mac,
545 src=self.pg0.remote_mac) /
546 IPv6(src=self.pg0.remote_ip6,
547 dst=self.pg1.remote_hosts[1].ip6) /
548 inet6.UDP(sport=1234, dport=1234) /
551 self.pg0.add_stream(p)
552 self.pg_enable_capture(self.pg_interfaces)
555 rx1 = self.pg1.get_capture(1)
557 self.verify_ip(rx1[0],
559 self.pg1.remote_hosts[1].mac,
561 self.pg1.remote_hosts[1].ip6)
564 # remove the duplicate on pg1
565 # packet stream should generate NSs out of pg1
567 ns_pg1.remove_vpp_config()
569 self.send_and_expect_ns(self.pg0, self.pg1,
570 p, self.pg1.remote_hosts[1].ip6)
575 ns_pg1.add_vpp_config()
577 self.pg0.add_stream(p)
578 self.pg_enable_capture(self.pg_interfaces)
581 rx1 = self.pg1.get_capture(1)
583 self.verify_ip(rx1[0],
585 self.pg1.remote_hosts[1].mac,
587 self.pg1.remote_hosts[1].ip6)
589 def validate_ra(self, intf, rx, dst_ip=None, src_ip=None,
590 mtu=9000, pi_opt=None):
592 dst_ip = intf.remote_ip6
594 src_ip = mk_ll_addr(intf.local_mac)
596 # unicasted packets must come to the unicast mac
597 self.assertEqual(rx[Ether].dst, intf.remote_mac)
599 # and from the router's MAC
600 self.assertEqual(rx[Ether].src, intf.local_mac)
602 # the rx'd RA should be addressed to the sender's source
603 self.assertTrue(rx.haslayer(ICMPv6ND_RA))
604 self.assertEqual(in6_ptop(rx[IPv6].dst),
607 # and come from the router's link local
608 self.assertTrue(in6_islladdr(rx[IPv6].src))
609 self.assertEqual(in6_ptop(rx[IPv6].src), in6_ptop(src_ip))
611 # it should contain the links MTU
613 self.assertEqual(ra[ICMPv6NDOptMTU].mtu, mtu)
615 # it should contain the source's link layer address option
616 sll = ra[ICMPv6NDOptSrcLLAddr]
617 self.assertEqual(sll.lladdr, intf.local_mac)
620 # the RA should not contain prefix information
621 self.assertFalse(ra.haslayer(
622 ICMPv6NDOptPrefixInfo))
624 raos = rx.getlayer(ICMPv6NDOptPrefixInfo, 1)
626 # the options are nested in the scapy packet in way that i cannot
627 # decipher how to decode. this 1st layer of option always returns
628 # nested classes, so a direct obj1=obj2 comparison always fails.
629 # however, the getlayer(.., 2) does give one instance.
630 # so we cheat here and construct a new opt instance for comparison
631 rd = ICMPv6NDOptPrefixInfo(
632 prefixlen=raos.prefixlen,
636 if type(pi_opt) is list:
637 for ii in range(len(pi_opt)):
638 self.assertEqual(pi_opt[ii], rd)
640 ICMPv6NDOptPrefixInfo, ii + 2)
642 self.assertEqual(pi_opt, raos, 'Expected: %s, received: %s'
643 % (pi_opt.show(dump=True),
644 raos.show(dump=True)))
646 def send_and_expect_ra(self, intf, pkts, remark, dst_ip=None,
647 filter_out_fn=is_ipv6_misc,
650 self.vapi.cli("clear trace")
651 intf.add_stream(pkts)
652 self.pg_enable_capture(self.pg_interfaces)
654 rx = intf.get_capture(1, filter_out_fn=filter_out_fn)
656 self.assertEqual(len(rx), 1)
658 self.validate_ra(intf, rx, dst_ip, src_ip=src_ip, pi_opt=opt)
661 """ IPv6 Router Solicitation Exceptions
667 # Before we begin change the IPv6 RA responses to use the unicast
668 # address - that way we will not confuse them with the periodic
669 # RAs which go to the mcast address
670 # Sit and wait for the first periodic RA.
674 self.pg0.ip6_ra_config(send_unicast=1)
677 # An RS from a link source address
678 # - expect an RA in return
680 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
681 IPv6(dst=self.pg0.local_ip6, src=self.pg0.remote_ip6) /
684 self.send_and_expect_ra(self.pg0, pkts, "Genuine RS")
687 # For the next RS sent the RA should be rate limited
689 self.send_and_assert_no_replies(self.pg0, pkts, "RA rate limited")
692 # When we reconfigure the IPv6 RA config,
693 # we reset the RA rate limiting,
694 # so we need to do this before each test below so as not to drop
695 # packets for rate limiting reasons. Test this works here.
697 self.pg0.ip6_ra_config(send_unicast=1)
698 self.send_and_expect_ra(self.pg0, pkts, "Rate limit reset RS")
701 # An RS sent from a non-link local source
703 self.pg0.ip6_ra_config(send_unicast=1)
704 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
705 IPv6(dst=self.pg0.local_ip6,
709 self.send_and_assert_no_replies(self.pg0, pkts,
710 "RS from non-link source")
713 # Source an RS from a link local address
715 self.pg0.ip6_ra_config(send_unicast=1)
716 ll = mk_ll_addr(self.pg0.remote_mac)
717 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
718 IPv6(dst=self.pg0.local_ip6, src=ll) /
721 self.send_and_expect_ra(self.pg0, pkts,
722 "RS sourced from link-local",
726 # Send the RS multicast
728 self.pg0.ip6_ra_config(send_unicast=1)
729 dmac = in6_getnsmac(inet_pton(AF_INET6, "ff02::2"))
730 ll = mk_ll_addr(self.pg0.remote_mac)
731 p = (Ether(dst=dmac, src=self.pg0.remote_mac) /
732 IPv6(dst="ff02::2", src=ll) /
735 self.send_and_expect_ra(self.pg0, pkts,
736 "RS sourced from link-local",
740 # Source from the unspecified address ::. This happens when the RS
741 # is sent before the host has a configured address/sub-net,
742 # i.e. auto-config. Since the sender has no IP address, the reply
743 # comes back mcast - so the capture needs to not filter this.
744 # If we happen to pick up the periodic RA at this point then so be it,
747 self.pg0.ip6_ra_config(send_unicast=1, suppress=1)
748 p = (Ether(dst=dmac, src=self.pg0.remote_mac) /
749 IPv6(dst="ff02::2", src="::") /
752 self.send_and_expect_ra(self.pg0, pkts,
753 "RS sourced from unspecified",
758 # Configure The RA to announce the links prefix
760 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
761 self.pg0.local_ip6_prefix_len))
764 # RAs should now contain the prefix information option
766 opt = ICMPv6NDOptPrefixInfo(
767 prefixlen=self.pg0.local_ip6_prefix_len,
768 prefix=self.pg0.local_ip6,
772 self.pg0.ip6_ra_config(send_unicast=1)
773 ll = mk_ll_addr(self.pg0.remote_mac)
774 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
775 IPv6(dst=self.pg0.local_ip6, src=ll) /
777 self.send_and_expect_ra(self.pg0, p,
778 "RA with prefix-info",
783 # Change the prefix info to not off-link
786 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
787 self.pg0.local_ip6_prefix_len),
790 opt = ICMPv6NDOptPrefixInfo(
791 prefixlen=self.pg0.local_ip6_prefix_len,
792 prefix=self.pg0.local_ip6,
796 self.pg0.ip6_ra_config(send_unicast=1)
797 self.send_and_expect_ra(self.pg0, p,
798 "RA with Prefix info with L-flag=0",
803 # Change the prefix info to not off-link, no-autoconfig
804 # L and A flag are clear in the advert
806 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
807 self.pg0.local_ip6_prefix_len),
811 opt = ICMPv6NDOptPrefixInfo(
812 prefixlen=self.pg0.local_ip6_prefix_len,
813 prefix=self.pg0.local_ip6,
817 self.pg0.ip6_ra_config(send_unicast=1)
818 self.send_and_expect_ra(self.pg0, p,
819 "RA with Prefix info with A & L-flag=0",
824 # Change the flag settings back to the defaults
825 # L and A flag are set in the advert
827 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
828 self.pg0.local_ip6_prefix_len))
830 opt = ICMPv6NDOptPrefixInfo(
831 prefixlen=self.pg0.local_ip6_prefix_len,
832 prefix=self.pg0.local_ip6,
836 self.pg0.ip6_ra_config(send_unicast=1)
837 self.send_and_expect_ra(self.pg0, p,
838 "RA with Prefix info",
843 # Change the prefix info to not off-link, no-autoconfig
844 # L and A flag are clear in the advert
846 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
847 self.pg0.local_ip6_prefix_len),
851 opt = ICMPv6NDOptPrefixInfo(
852 prefixlen=self.pg0.local_ip6_prefix_len,
853 prefix=self.pg0.local_ip6,
857 self.pg0.ip6_ra_config(send_unicast=1)
858 self.send_and_expect_ra(self.pg0, p,
859 "RA with Prefix info with A & L-flag=0",
864 # Use the reset to defaults option to revert to defaults
865 # L and A flag are clear in the advert
867 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
868 self.pg0.local_ip6_prefix_len),
871 opt = ICMPv6NDOptPrefixInfo(
872 prefixlen=self.pg0.local_ip6_prefix_len,
873 prefix=self.pg0.local_ip6,
877 self.pg0.ip6_ra_config(send_unicast=1)
878 self.send_and_expect_ra(self.pg0, p,
879 "RA with Prefix reverted to defaults",
884 # Advertise Another prefix. With no L-flag/A-flag
886 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg1.local_ip6,
887 self.pg1.local_ip6_prefix_len),
891 opt = [ICMPv6NDOptPrefixInfo(
892 prefixlen=self.pg0.local_ip6_prefix_len,
893 prefix=self.pg0.local_ip6,
896 ICMPv6NDOptPrefixInfo(
897 prefixlen=self.pg1.local_ip6_prefix_len,
898 prefix=self.pg1.local_ip6,
902 self.pg0.ip6_ra_config(send_unicast=1)
903 ll = mk_ll_addr(self.pg0.remote_mac)
904 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
905 IPv6(dst=self.pg0.local_ip6, src=ll) /
907 self.send_and_expect_ra(self.pg0, p,
908 "RA with multiple Prefix infos",
913 # Remove the first prefix-info - expect the second is still in the
916 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
917 self.pg0.local_ip6_prefix_len),
920 opt = ICMPv6NDOptPrefixInfo(
921 prefixlen=self.pg1.local_ip6_prefix_len,
922 prefix=self.pg1.local_ip6,
926 self.pg0.ip6_ra_config(send_unicast=1)
927 self.send_and_expect_ra(self.pg0, p,
928 "RA with Prefix reverted to defaults",
933 # Remove the second prefix-info - expect no prefix-info in the adverts
935 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg1.local_ip6,
936 self.pg1.local_ip6_prefix_len),
940 # change the link's link local, so we know that works too.
942 self.vapi.sw_interface_ip6_set_link_local_address(
943 sw_if_index=self.pg0.sw_if_index,
946 self.pg0.ip6_ra_config(send_unicast=1)
947 self.send_and_expect_ra(self.pg0, p,
948 "RA with Prefix reverted to defaults",
953 # Reset the periodic advertisements back to default values
955 self.pg0.ip6_ra_config(no=1, suppress=1, send_unicast=0)
960 # test one MLD is sent after applying an IPv6 Address on an interface
962 self.pg_enable_capture(self.pg_interfaces)
965 subitf = VppDot1QSubint(self, self.pg1, 99)
970 rxs = self.pg1._get_capture(timeout=4, filter_out_fn=None)
973 # hunt for the MLD on vlan 99
976 # make sure ipv6 packets with hop by hop options have
978 self.assert_packet_checksums_valid(rx)
979 if rx.haslayer(IPv6ExtHdrHopByHop) and \
980 rx.haslayer(Dot1Q) and \
981 rx[Dot1Q].vlan == 99:
982 mld = rx[ICMPv6MLReport2]
984 self.assertEqual(mld.records_number, 4)
987 class TestIPv6RouteLookup(VppTestCase):
988 """ IPv6 Route Lookup Test Case """
991 def route_lookup(self, prefix, exact):
992 return self.vapi.api(self.vapi.papi.ip_route_lookup,
1000 def setUpClass(cls):
1001 super(TestIPv6RouteLookup, cls).setUpClass()
1004 def tearDownClass(cls):
1005 super(TestIPv6RouteLookup, cls).tearDownClass()
1008 super(TestIPv6RouteLookup, self).setUp()
1010 drop_nh = VppRoutePath("::1", 0xffffffff,
1011 type=FibPathType.FIB_PATH_TYPE_DROP)
1014 r = VppIpRoute(self, "2001:1111::", 32, [drop_nh])
1016 self.routes.append(r)
1018 r = VppIpRoute(self, "2001:1111:2222::", 48, [drop_nh])
1020 self.routes.append(r)
1022 r = VppIpRoute(self, "2001:1111:2222::1", 128, [drop_nh])
1024 self.routes.append(r)
1027 # Remove the routes we added
1028 for r in self.routes:
1029 r.remove_vpp_config()
1031 super(TestIPv6RouteLookup, self).tearDown()
1033 def test_exact_match(self):
1034 # Verify we find the host route
1035 prefix = "2001:1111:2222::1/128"
1036 result = self.route_lookup(prefix, True)
1037 assert (prefix == str(result.route.prefix))
1039 # Verify we find a middle prefix route
1040 prefix = "2001:1111:2222::/48"
1041 result = self.route_lookup(prefix, True)
1042 assert (prefix == str(result.route.prefix))
1044 # Verify we do not find an available LPM.
1045 with self.vapi.assert_negative_api_retval():
1046 self.route_lookup("2001::2/128", True)
1048 def test_longest_prefix_match(self):
1049 # verify we find lpm
1050 lpm_prefix = "2001:1111:2222::/48"
1051 result = self.route_lookup("2001:1111:2222::2/128", False)
1052 assert (lpm_prefix == str(result.route.prefix))
1054 # Verify we find the exact when not requested
1055 result = self.route_lookup(lpm_prefix, False)
1056 assert (lpm_prefix == str(result.route.prefix))
1058 # Can't seem to delete the default route so no negative LPM test.
1061 class TestIPv6IfAddrRoute(VppTestCase):
1062 """ IPv6 Interface Addr Route Test Case """
1065 def setUpClass(cls):
1066 super(TestIPv6IfAddrRoute, cls).setUpClass()
1069 def tearDownClass(cls):
1070 super(TestIPv6IfAddrRoute, cls).tearDownClass()
1073 super(TestIPv6IfAddrRoute, self).setUp()
1075 # create 1 pg interface
1076 self.create_pg_interfaces(range(1))
1078 for i in self.pg_interfaces:
1084 super(TestIPv6IfAddrRoute, self).tearDown()
1085 for i in self.pg_interfaces:
1089 def test_ipv6_ifaddrs_same_prefix(self):
1090 """ IPv6 Interface Addresses Same Prefix test
1094 - Verify no route in FIB for prefix 2001:10::/64
1095 - Configure IPv4 address 2001:10::10/64 on an interface
1096 - Verify route in FIB for prefix 2001:10::/64
1097 - Configure IPv4 address 2001:10::20/64 on an interface
1098 - Delete 2001:10::10/64 from interface
1099 - Verify route in FIB for prefix 2001:10::/64
1100 - Delete 2001:10::20/64 from interface
1101 - Verify no route in FIB for prefix 2001:10::/64
1104 addr1 = "2001:10::10"
1105 addr2 = "2001:10::20"
1107 if_addr1 = VppIpInterfaceAddress(self, self.pg0, addr1, 64)
1108 if_addr2 = VppIpInterfaceAddress(self, self.pg0, addr2, 64)
1109 self.assertFalse(if_addr1.query_vpp_config())
1110 self.assertFalse(find_route(self, addr1, 128))
1111 self.assertFalse(find_route(self, addr2, 128))
1113 # configure first address, verify route present
1114 if_addr1.add_vpp_config()
1115 self.assertTrue(if_addr1.query_vpp_config())
1116 self.assertTrue(find_route(self, addr1, 128))
1117 self.assertFalse(find_route(self, addr2, 128))
1119 # configure second address, delete first, verify route not removed
1120 if_addr2.add_vpp_config()
1121 if_addr1.remove_vpp_config()
1122 self.assertFalse(if_addr1.query_vpp_config())
1123 self.assertTrue(if_addr2.query_vpp_config())
1124 self.assertFalse(find_route(self, addr1, 128))
1125 self.assertTrue(find_route(self, addr2, 128))
1127 # delete second address, verify route removed
1128 if_addr2.remove_vpp_config()
1129 self.assertFalse(if_addr1.query_vpp_config())
1130 self.assertFalse(find_route(self, addr1, 128))
1131 self.assertFalse(find_route(self, addr2, 128))
1133 def test_ipv6_ifaddr_del(self):
1134 """ Delete an interface address that does not exist """
1136 loopbacks = self.create_loopback_interfaces(1)
1137 lo = self.lo_interfaces[0]
1143 # try and remove pg0's subnet from lo
1145 with self.vapi.assert_negative_api_retval():
1146 self.vapi.sw_interface_add_del_address(
1147 sw_if_index=lo.sw_if_index,
1148 prefix=self.pg0.local_ip6_prefix,
1152 class TestICMPv6Echo(VppTestCase):
1153 """ ICMPv6 Echo Test Case """
1156 def setUpClass(cls):
1157 super(TestICMPv6Echo, cls).setUpClass()
1160 def tearDownClass(cls):
1161 super(TestICMPv6Echo, cls).tearDownClass()
1164 super(TestICMPv6Echo, self).setUp()
1166 # create 1 pg interface
1167 self.create_pg_interfaces(range(1))
1169 for i in self.pg_interfaces:
1175 super(TestICMPv6Echo, self).tearDown()
1176 for i in self.pg_interfaces:
1180 def test_icmpv6_echo(self):
1181 """ VPP replies to ICMPv6 Echo Request
1185 - Receive ICMPv6 Echo Request message on pg0 interface.
1186 - Check outgoing ICMPv6 Echo Reply message on pg0 interface.
1191 icmpv6_data = b'\x0a' * 18
1192 p_echo_request = (Ether(src=self.pg0.remote_mac,
1193 dst=self.pg0.local_mac) /
1194 IPv6(src=self.pg0.remote_ip6,
1195 dst=self.pg0.local_ip6) /
1201 self.pg0.add_stream(p_echo_request)
1202 self.pg_enable_capture(self.pg_interfaces)
1205 rx = self.pg0.get_capture(1)
1209 icmpv6 = rx[ICMPv6EchoReply]
1211 self.assertEqual(ether.src, self.pg0.local_mac)
1212 self.assertEqual(ether.dst, self.pg0.remote_mac)
1214 self.assertEqual(ipv6.src, self.pg0.local_ip6)
1215 self.assertEqual(ipv6.dst, self.pg0.remote_ip6)
1218 icmp6types[icmpv6.type], "Echo Reply")
1219 self.assertEqual(icmpv6.id, icmpv6_id)
1220 self.assertEqual(icmpv6.seq, icmpv6_seq)
1221 self.assertEqual(icmpv6.data, icmpv6_data)
1224 class TestIPv6RD(TestIPv6ND):
1225 """ IPv6 Router Discovery Test Case """
1228 def setUpClass(cls):
1229 super(TestIPv6RD, cls).setUpClass()
1232 def tearDownClass(cls):
1233 super(TestIPv6RD, cls).tearDownClass()
1236 super(TestIPv6RD, self).setUp()
1238 # create 2 pg interfaces
1239 self.create_pg_interfaces(range(2))
1241 self.interfaces = list(self.pg_interfaces)
1243 # setup all interfaces
1244 for i in self.interfaces:
1249 for i in self.interfaces:
1252 super(TestIPv6RD, self).tearDown()
1254 def test_rd_send_router_solicitation(self):
1255 """ Verify router solicitation packets """
1258 self.pg_enable_capture(self.pg_interfaces)
1260 self.vapi.ip6nd_send_router_solicitation(self.pg1.sw_if_index,
1262 rx_list = self.pg1.get_capture(count, timeout=3)
1263 self.assertEqual(len(rx_list), count)
1264 for packet in rx_list:
1265 self.assertEqual(packet.haslayer(IPv6), 1)
1266 self.assertEqual(packet[IPv6].haslayer(
1268 dst = ip6_normalize(packet[IPv6].dst)
1269 dst2 = ip6_normalize("ff02::2")
1270 self.assert_equal(dst, dst2)
1271 src = ip6_normalize(packet[IPv6].src)
1272 src2 = ip6_normalize(self.pg1.local_ip6_ll)
1273 self.assert_equal(src, src2)
1275 bool(packet[ICMPv6ND_RS].haslayer(
1276 ICMPv6NDOptSrcLLAddr)))
1278 packet[ICMPv6NDOptSrcLLAddr].lladdr,
1281 def verify_prefix_info(self, reported_prefix, prefix_option):
1282 prefix = IPv6Network(
1283 text_type(prefix_option.getfieldval("prefix") +
1285 text_type(prefix_option.getfieldval("prefixlen"))),
1287 self.assert_equal(reported_prefix.prefix.network_address,
1288 prefix.network_address)
1289 L = prefix_option.getfieldval("L")
1290 A = prefix_option.getfieldval("A")
1291 option_flags = (L << 7) | (A << 6)
1292 self.assert_equal(reported_prefix.flags, option_flags)
1293 self.assert_equal(reported_prefix.valid_time,
1294 prefix_option.getfieldval("validlifetime"))
1295 self.assert_equal(reported_prefix.preferred_time,
1296 prefix_option.getfieldval("preferredlifetime"))
1298 def test_rd_receive_router_advertisement(self):
1299 """ Verify events triggered by received RA packets """
1301 self.vapi.want_ip6_ra_events(enable=1)
1303 prefix_info_1 = ICMPv6NDOptPrefixInfo(
1307 preferredlifetime=500,
1312 prefix_info_2 = ICMPv6NDOptPrefixInfo(
1316 preferredlifetime=1000,
1321 p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
1322 IPv6(dst=self.pg1.local_ip6_ll,
1323 src=mk_ll_addr(self.pg1.remote_mac)) /
1327 self.pg1.add_stream([p])
1330 ev = self.vapi.wait_for_event(10, "ip6_ra_event")
1332 self.assert_equal(ev.current_hop_limit, 0)
1333 self.assert_equal(ev.flags, 8)
1334 self.assert_equal(ev.router_lifetime_in_sec, 1800)
1335 self.assert_equal(ev.neighbor_reachable_time_in_msec, 0)
1337 ev.time_in_msec_between_retransmitted_neighbor_solicitations, 0)
1339 self.assert_equal(ev.n_prefixes, 2)
1341 self.verify_prefix_info(ev.prefixes[0], prefix_info_1)
1342 self.verify_prefix_info(ev.prefixes[1], prefix_info_2)
1345 class TestIPv6RDControlPlane(TestIPv6ND):
1346 """ IPv6 Router Discovery Control Plane Test Case """
1349 def setUpClass(cls):
1350 super(TestIPv6RDControlPlane, cls).setUpClass()
1353 def tearDownClass(cls):
1354 super(TestIPv6RDControlPlane, cls).tearDownClass()
1357 super(TestIPv6RDControlPlane, self).setUp()
1359 # create 1 pg interface
1360 self.create_pg_interfaces(range(1))
1362 self.interfaces = list(self.pg_interfaces)
1364 # setup all interfaces
1365 for i in self.interfaces:
1370 super(TestIPv6RDControlPlane, self).tearDown()
1373 def create_ra_packet(pg, routerlifetime=None):
1374 src_ip = pg.remote_ip6_ll
1375 dst_ip = pg.local_ip6
1376 if routerlifetime is not None:
1377 ra = ICMPv6ND_RA(routerlifetime=routerlifetime)
1380 p = (Ether(dst=pg.local_mac, src=pg.remote_mac) /
1381 IPv6(dst=dst_ip, src=src_ip) / ra)
1385 def get_default_routes(fib):
1388 if entry.route.prefix.prefixlen == 0:
1389 for path in entry.route.paths:
1390 if path.sw_if_index != 0xFFFFFFFF:
1392 defaut_route['sw_if_index'] = path.sw_if_index
1393 defaut_route['next_hop'] = path.nh.address.ip6
1394 list.append(defaut_route)
1398 def get_interface_addresses(fib, pg):
1401 if entry.route.prefix.prefixlen == 128:
1402 path = entry.route.paths[0]
1403 if path.sw_if_index == pg.sw_if_index:
1404 list.append(str(entry.route.prefix.network_address))
1407 def wait_for_no_default_route(self, n_tries=50, s_time=1):
1409 fib = self.vapi.ip_route_dump(0, True)
1410 default_routes = self.get_default_routes(fib)
1411 if 0 == len(default_routes):
1413 n_tries = n_tries - 1
1419 """ Test handling of SLAAC addresses and default routes """
1421 fib = self.vapi.ip_route_dump(0, True)
1422 default_routes = self.get_default_routes(fib)
1423 initial_addresses = set(self.get_interface_addresses(fib, self.pg0))
1424 self.assertEqual(default_routes, [])
1425 router_address = IPv6Address(text_type(self.pg0.remote_ip6_ll))
1427 self.vapi.ip6_nd_address_autoconfig(self.pg0.sw_if_index, 1, 1)
1432 packet = (self.create_ra_packet(
1433 self.pg0) / ICMPv6NDOptPrefixInfo(
1437 preferredlifetime=2,
1440 ) / ICMPv6NDOptPrefixInfo(
1444 preferredlifetime=1000,
1448 self.pg0.add_stream([packet])
1451 self.sleep_on_vpp_time(0.1)
1453 fib = self.vapi.ip_route_dump(0, True)
1455 # check FIB for new address
1456 addresses = set(self.get_interface_addresses(fib, self.pg0))
1457 new_addresses = addresses.difference(initial_addresses)
1458 self.assertEqual(len(new_addresses), 1)
1459 prefix = IPv6Network(text_type("%s/%d" % (list(new_addresses)[0], 20)),
1461 self.assertEqual(prefix, IPv6Network(text_type('1::/20')))
1463 # check FIB for new default route
1464 default_routes = self.get_default_routes(fib)
1465 self.assertEqual(len(default_routes), 1)
1466 dr = default_routes[0]
1467 self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
1468 self.assertEqual(dr['next_hop'], router_address)
1470 # send RA to delete default route
1471 packet = self.create_ra_packet(self.pg0, routerlifetime=0)
1472 self.pg0.add_stream([packet])
1475 self.sleep_on_vpp_time(0.1)
1477 # check that default route is deleted
1478 fib = self.vapi.ip_route_dump(0, True)
1479 default_routes = self.get_default_routes(fib)
1480 self.assertEqual(len(default_routes), 0)
1482 self.sleep_on_vpp_time(0.1)
1485 packet = self.create_ra_packet(self.pg0)
1486 self.pg0.add_stream([packet])
1489 self.sleep_on_vpp_time(0.1)
1491 # check FIB for new default route
1492 fib = self.vapi.ip_route_dump(0, True)
1493 default_routes = self.get_default_routes(fib)
1494 self.assertEqual(len(default_routes), 1)
1495 dr = default_routes[0]
1496 self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
1497 self.assertEqual(dr['next_hop'], router_address)
1499 # send RA, updating router lifetime to 1s
1500 packet = self.create_ra_packet(self.pg0, 1)
1501 self.pg0.add_stream([packet])
1504 self.sleep_on_vpp_time(0.1)
1506 # check that default route still exists
1507 fib = self.vapi.ip_route_dump(0, True)
1508 default_routes = self.get_default_routes(fib)
1509 self.assertEqual(len(default_routes), 1)
1510 dr = default_routes[0]
1511 self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
1512 self.assertEqual(dr['next_hop'], router_address)
1514 self.sleep_on_vpp_time(1)
1516 # check that default route is deleted
1517 self.assertTrue(self.wait_for_no_default_route())
1519 # check FIB still contains the SLAAC address
1520 addresses = set(self.get_interface_addresses(fib, self.pg0))
1521 new_addresses = addresses.difference(initial_addresses)
1523 self.assertEqual(len(new_addresses), 1)
1524 prefix = IPv6Network(text_type("%s/%d" % (list(new_addresses)[0], 20)),
1526 self.assertEqual(prefix, IPv6Network(text_type('1::/20')))
1528 self.sleep_on_vpp_time(1)
1530 # check that SLAAC address is deleted
1531 fib = self.vapi.ip_route_dump(0, True)
1532 addresses = set(self.get_interface_addresses(fib, self.pg0))
1533 new_addresses = addresses.difference(initial_addresses)
1534 self.assertEqual(len(new_addresses), 0)
1537 class IPv6NDProxyTest(TestIPv6ND):
1538 """ IPv6 ND ProxyTest Case """
1541 def setUpClass(cls):
1542 super(IPv6NDProxyTest, cls).setUpClass()
1545 def tearDownClass(cls):
1546 super(IPv6NDProxyTest, cls).tearDownClass()
1549 super(IPv6NDProxyTest, self).setUp()
1551 # create 3 pg interfaces
1552 self.create_pg_interfaces(range(3))
1554 # pg0 is the master interface, with the configured subnet
1556 self.pg0.config_ip6()
1557 self.pg0.resolve_ndp()
1559 self.pg1.ip6_enable()
1560 self.pg2.ip6_enable()
1563 super(IPv6NDProxyTest, self).tearDown()
1565 def test_nd_proxy(self):
1566 """ IPv6 Proxy ND """
1569 # Generate some hosts in the subnet that we are proxying
1571 self.pg0.generate_remote_hosts(8)
1573 nsma = in6_getnsma(inet_pton(AF_INET6, self.pg0.local_ip6))
1574 d = inet_ntop(AF_INET6, nsma)
1577 # Send an NS for one of those remote hosts on one of the proxy links
1578 # expect no response since it's from an address that is not
1579 # on the link that has the prefix configured
1581 ns_pg1 = (Ether(dst=in6_getnsmac(nsma), src=self.pg1.remote_mac) /
1583 src=self.pg0._remote_hosts[2].ip6) /
1584 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
1585 ICMPv6NDOptSrcLLAddr(
1586 lladdr=self.pg0._remote_hosts[2].mac))
1588 self.send_and_assert_no_replies(self.pg1, ns_pg1, "Off link NS")
1591 # Add proxy support for the host
1593 self.vapi.ip6nd_proxy_add_del(
1594 is_add=1, ip=inet_pton(AF_INET6, self.pg0._remote_hosts[2].ip6),
1595 sw_if_index=self.pg1.sw_if_index)
1598 # try that NS again. this time we expect an NA back
1600 self.send_and_expect_na(self.pg1, ns_pg1,
1601 "NS to proxy entry",
1602 dst_ip=self.pg0._remote_hosts[2].ip6,
1603 tgt_ip=self.pg0.local_ip6)
1606 # ... and that we have an entry in the ND cache
1608 self.assertTrue(find_nbr(self,
1609 self.pg1.sw_if_index,
1610 self.pg0._remote_hosts[2].ip6))
1613 # ... and we can route traffic to it
1615 t = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
1616 IPv6(dst=self.pg0._remote_hosts[2].ip6,
1617 src=self.pg0.remote_ip6) /
1618 inet6.UDP(sport=10000, dport=20000) /
1621 self.pg0.add_stream(t)
1622 self.pg_enable_capture(self.pg_interfaces)
1624 rx = self.pg1.get_capture(1)
1627 self.assertEqual(rx[Ether].dst, self.pg0._remote_hosts[2].mac)
1628 self.assertEqual(rx[Ether].src, self.pg1.local_mac)
1630 self.assertEqual(rx[IPv6].src,
1632 self.assertEqual(rx[IPv6].dst,
1636 # Test we proxy for the host on the main interface
1638 ns_pg0 = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
1639 IPv6(dst=d, src=self.pg0.remote_ip6) /
1641 tgt=self.pg0._remote_hosts[2].ip6) /
1642 ICMPv6NDOptSrcLLAddr(
1643 lladdr=self.pg0.remote_mac))
1645 self.send_and_expect_na(self.pg0, ns_pg0,
1646 "NS to proxy entry on main",
1647 tgt_ip=self.pg0._remote_hosts[2].ip6,
1648 dst_ip=self.pg0.remote_ip6)
1651 # Setup and resolve proxy for another host on another interface
1653 ns_pg2 = (Ether(dst=in6_getnsmac(nsma), src=self.pg2.remote_mac) /
1655 src=self.pg0._remote_hosts[3].ip6) /
1656 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
1657 ICMPv6NDOptSrcLLAddr(
1658 lladdr=self.pg0._remote_hosts[2].mac))
1660 self.vapi.ip6nd_proxy_add_del(
1661 is_add=1, ip=inet_pton(AF_INET6, self.pg0._remote_hosts[3].ip6),
1662 sw_if_index=self.pg2.sw_if_index)
1664 self.send_and_expect_na(self.pg2, ns_pg2,
1665 "NS to proxy entry other interface",
1666 dst_ip=self.pg0._remote_hosts[3].ip6,
1667 tgt_ip=self.pg0.local_ip6)
1669 self.assertTrue(find_nbr(self,
1670 self.pg2.sw_if_index,
1671 self.pg0._remote_hosts[3].ip6))
1674 # hosts can communicate. pg2->pg1
1676 t2 = (Ether(dst=self.pg2.local_mac,
1677 src=self.pg0.remote_hosts[3].mac) /
1678 IPv6(dst=self.pg0._remote_hosts[2].ip6,
1679 src=self.pg0._remote_hosts[3].ip6) /
1680 inet6.UDP(sport=10000, dport=20000) /
1683 self.pg2.add_stream(t2)
1684 self.pg_enable_capture(self.pg_interfaces)
1686 rx = self.pg1.get_capture(1)
1689 self.assertEqual(rx[Ether].dst, self.pg0._remote_hosts[2].mac)
1690 self.assertEqual(rx[Ether].src, self.pg1.local_mac)
1692 self.assertEqual(rx[IPv6].src,
1694 self.assertEqual(rx[IPv6].dst,
1698 # remove the proxy configs
1700 self.vapi.ip6nd_proxy_add_del(
1701 ip=inet_pton(AF_INET6, self.pg0._remote_hosts[2].ip6),
1702 sw_if_index=self.pg1.sw_if_index, is_add=0)
1703 self.vapi.ip6nd_proxy_add_del(
1704 ip=inet_pton(AF_INET6, self.pg0._remote_hosts[3].ip6),
1705 sw_if_index=self.pg2.sw_if_index, is_add=0)
1707 self.assertFalse(find_nbr(self,
1708 self.pg2.sw_if_index,
1709 self.pg0._remote_hosts[3].ip6))
1710 self.assertFalse(find_nbr(self,
1711 self.pg1.sw_if_index,
1712 self.pg0._remote_hosts[2].ip6))
1715 # no longer proxy-ing...
1717 self.send_and_assert_no_replies(self.pg0, ns_pg0, "Proxy unconfigured")
1718 self.send_and_assert_no_replies(self.pg1, ns_pg1, "Proxy unconfigured")
1719 self.send_and_assert_no_replies(self.pg2, ns_pg2, "Proxy unconfigured")
1722 # no longer forwarding. traffic generates NS out of the glean/main
1725 self.pg2.add_stream(t2)
1726 self.pg_enable_capture(self.pg_interfaces)
1729 rx = self.pg0.get_capture(1)
1731 self.assertTrue(rx[0].haslayer(ICMPv6ND_NS))
1734 class TestIPNull(VppTestCase):
1735 """ IPv6 routes via NULL """
1738 def setUpClass(cls):
1739 super(TestIPNull, cls).setUpClass()
1742 def tearDownClass(cls):
1743 super(TestIPNull, cls).tearDownClass()
1746 super(TestIPNull, self).setUp()
1748 # create 2 pg interfaces
1749 self.create_pg_interfaces(range(1))
1751 for i in self.pg_interfaces:
1757 super(TestIPNull, self).tearDown()
1758 for i in self.pg_interfaces:
1762 def test_ip_null(self):
1763 """ IP NULL route """
1765 p = (Ether(src=self.pg0.remote_mac,
1766 dst=self.pg0.local_mac) /
1767 IPv6(src=self.pg0.remote_ip6, dst="2001::1") /
1768 inet6.UDP(sport=1234, dport=1234) /
1772 # A route via IP NULL that will reply with ICMP unreachables
1774 ip_unreach = VppIpRoute(
1776 [VppRoutePath("::", 0xffffffff,
1777 type=FibPathType.FIB_PATH_TYPE_ICMP_UNREACH)])
1778 ip_unreach.add_vpp_config()
1780 self.pg0.add_stream(p)
1781 self.pg_enable_capture(self.pg_interfaces)
1784 rx = self.pg0.get_capture(1)
1786 icmp = rx[ICMPv6DestUnreach]
1788 # 0 = "No route to destination"
1789 self.assertEqual(icmp.code, 0)
1791 # ICMP is rate limited. pause a bit
1795 # A route via IP NULL that will reply with ICMP prohibited
1797 ip_prohibit = VppIpRoute(
1798 self, "2001::1", 128,
1799 [VppRoutePath("::", 0xffffffff,
1800 type=FibPathType.FIB_PATH_TYPE_ICMP_PROHIBIT)])
1801 ip_prohibit.add_vpp_config()
1803 self.pg0.add_stream(p)
1804 self.pg_enable_capture(self.pg_interfaces)
1807 rx = self.pg0.get_capture(1)
1809 icmp = rx[ICMPv6DestUnreach]
1811 # 1 = "Communication with destination administratively prohibited"
1812 self.assertEqual(icmp.code, 1)
1815 class TestIPDisabled(VppTestCase):
1816 """ IPv6 disabled """
1819 def setUpClass(cls):
1820 super(TestIPDisabled, cls).setUpClass()
1823 def tearDownClass(cls):
1824 super(TestIPDisabled, cls).tearDownClass()
1827 super(TestIPDisabled, self).setUp()
1829 # create 2 pg interfaces
1830 self.create_pg_interfaces(range(2))
1834 self.pg0.config_ip6()
1835 self.pg0.resolve_ndp()
1837 # PG 1 is not IP enabled
1841 super(TestIPDisabled, self).tearDown()
1842 for i in self.pg_interfaces:
1846 def test_ip_disabled(self):
1849 MRouteItfFlags = VppEnum.vl_api_mfib_itf_flags_t
1850 MRouteEntryFlags = VppEnum.vl_api_mfib_entry_flags_t
1853 # one accepting interface, pg0, 2 forwarding interfaces
1855 route_ff_01 = VppIpMRoute(
1859 MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
1860 [VppMRoutePath(self.pg1.sw_if_index,
1861 MRouteItfFlags.MFIB_API_ITF_FLAG_ACCEPT),
1862 VppMRoutePath(self.pg0.sw_if_index,
1863 MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD)])
1864 route_ff_01.add_vpp_config()
1866 pu = (Ether(src=self.pg1.remote_mac,
1867 dst=self.pg1.local_mac) /
1868 IPv6(src="2001::1", dst=self.pg0.remote_ip6) /
1869 inet6.UDP(sport=1234, dport=1234) /
1871 pm = (Ether(src=self.pg1.remote_mac,
1872 dst=self.pg1.local_mac) /
1873 IPv6(src="2001::1", dst="ffef::1") /
1874 inet6.UDP(sport=1234, dport=1234) /
1878 # PG1 does not forward IP traffic
1880 self.send_and_assert_no_replies(self.pg1, pu, "IPv6 disabled")
1881 self.send_and_assert_no_replies(self.pg1, pm, "IPv6 disabled")
1886 self.pg1.config_ip6()
1889 # Now we get packets through
1891 self.pg1.add_stream(pu)
1892 self.pg_enable_capture(self.pg_interfaces)
1894 rx = self.pg0.get_capture(1)
1896 self.pg1.add_stream(pm)
1897 self.pg_enable_capture(self.pg_interfaces)
1899 rx = self.pg0.get_capture(1)
1904 self.pg1.unconfig_ip6()
1907 # PG1 does not forward IP traffic
1909 self.send_and_assert_no_replies(self.pg1, pu, "IPv6 disabled")
1910 self.send_and_assert_no_replies(self.pg1, pm, "IPv6 disabled")
1913 class TestIP6LoadBalance(VppTestCase):
1914 """ IPv6 Load-Balancing """
1917 def setUpClass(cls):
1918 super(TestIP6LoadBalance, cls).setUpClass()
1921 def tearDownClass(cls):
1922 super(TestIP6LoadBalance, cls).tearDownClass()
1925 super(TestIP6LoadBalance, self).setUp()
1927 self.create_pg_interfaces(range(5))
1929 mpls_tbl = VppMplsTable(self, 0)
1930 mpls_tbl.add_vpp_config()
1932 for i in self.pg_interfaces:
1939 for i in self.pg_interfaces:
1943 super(TestIP6LoadBalance, self).tearDown()
1945 def pg_send(self, input, pkts):
1946 self.vapi.cli("clear trace")
1947 input.add_stream(pkts)
1948 self.pg_enable_capture(self.pg_interfaces)
1951 def send_and_expect_load_balancing(self, input, pkts, outputs):
1952 self.pg_send(input, pkts)
1954 rx = oo._get_capture(1)
1955 self.assertNotEqual(0, len(rx))
1957 def send_and_expect_one_itf(self, input, pkts, itf):
1958 self.pg_send(input, pkts)
1959 rx = itf.get_capture(len(pkts))
1961 def test_ip6_load_balance(self):
1962 """ IPv6 Load-Balancing """
1965 # An array of packets that differ only in the destination port
1969 # - MPLS non-EOS with an entropy label
1973 port_mpls_neos_pkts = []
1977 # An array of packets that differ only in the source address
1982 for ii in range(NUM_PKTS):
1984 IPv6(dst="3000::1", src="3000:1::1") /
1985 inet6.UDP(sport=1234, dport=1234 + ii) /
1987 port_ip_pkts.append((Ether(src=self.pg0.remote_mac,
1988 dst=self.pg0.local_mac) /
1990 port_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
1991 dst=self.pg0.local_mac) /
1992 MPLS(label=66, ttl=2) /
1994 port_mpls_neos_pkts.append((Ether(src=self.pg0.remote_mac,
1995 dst=self.pg0.local_mac) /
1996 MPLS(label=67, ttl=2) /
1997 MPLS(label=77, ttl=2) /
1999 port_ent_pkts.append((Ether(src=self.pg0.remote_mac,
2000 dst=self.pg0.local_mac) /
2001 MPLS(label=67, ttl=2) /
2002 MPLS(label=14, ttl=2) /
2003 MPLS(label=999, ttl=2) /
2006 IPv6(dst="3000::1", src="3000:1::%d" % ii) /
2007 inet6.UDP(sport=1234, dport=1234) /
2009 src_ip_pkts.append((Ether(src=self.pg0.remote_mac,
2010 dst=self.pg0.local_mac) /
2012 src_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
2013 dst=self.pg0.local_mac) /
2014 MPLS(label=66, ttl=2) /
2018 # A route for the IP packets
2020 route_3000_1 = VppIpRoute(self, "3000::1", 128,
2021 [VppRoutePath(self.pg1.remote_ip6,
2022 self.pg1.sw_if_index),
2023 VppRoutePath(self.pg2.remote_ip6,
2024 self.pg2.sw_if_index)])
2025 route_3000_1.add_vpp_config()
2028 # a local-label for the EOS packets
2030 binding = VppMplsIpBind(self, 66, "3000::1", 128, is_ip6=1)
2031 binding.add_vpp_config()
2034 # An MPLS route for the non-EOS packets
2036 route_67 = VppMplsRoute(self, 67, 0,
2037 [VppRoutePath(self.pg1.remote_ip6,
2038 self.pg1.sw_if_index,
2040 VppRoutePath(self.pg2.remote_ip6,
2041 self.pg2.sw_if_index,
2043 route_67.add_vpp_config()
2046 # inject the packet on pg0 - expect load-balancing across the 2 paths
2047 # - since the default hash config is to use IP src,dst and port
2049 # We are not going to ensure equal amounts of packets across each link,
2050 # since the hash algorithm is statistical and therefore this can never
2051 # be guaranteed. But with 64 different packets we do expect some
2052 # balancing. So instead just ensure there is traffic on each link.
2054 self.send_and_expect_load_balancing(self.pg0, port_ip_pkts,
2055 [self.pg1, self.pg2])
2056 self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
2057 [self.pg1, self.pg2])
2058 self.send_and_expect_load_balancing(self.pg0, port_mpls_pkts,
2059 [self.pg1, self.pg2])
2060 self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
2061 [self.pg1, self.pg2])
2062 self.send_and_expect_load_balancing(self.pg0, port_mpls_neos_pkts,
2063 [self.pg1, self.pg2])
2066 # The packets with Entropy label in should not load-balance,
2067 # since the Entropy value is fixed.
2069 self.send_and_expect_one_itf(self.pg0, port_ent_pkts, self.pg1)
2072 # change the flow hash config so it's only IP src,dst
2073 # - now only the stream with differing source address will
2076 self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, sport=0, dport=0,
2079 self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
2080 [self.pg1, self.pg2])
2081 self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
2082 [self.pg1, self.pg2])
2083 self.send_and_expect_one_itf(self.pg0, port_ip_pkts, self.pg2)
2086 # change the flow hash config back to defaults
2088 self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, sport=1, dport=1,
2092 # Recursive prefixes
2093 # - testing that 2 stages of load-balancing occurs and there is no
2094 # polarisation (i.e. only 2 of 4 paths are used)
2099 for ii in range(257):
2100 port_pkts.append((Ether(src=self.pg0.remote_mac,
2101 dst=self.pg0.local_mac) /
2104 inet6.UDP(sport=1234,
2106 Raw(b'\xa5' * 100)))
2107 src_pkts.append((Ether(src=self.pg0.remote_mac,
2108 dst=self.pg0.local_mac) /
2110 src="4000:1::%d" % ii) /
2111 inet6.UDP(sport=1234, dport=1234) /
2112 Raw(b'\xa5' * 100)))
2114 route_3000_2 = VppIpRoute(self, "3000::2", 128,
2115 [VppRoutePath(self.pg3.remote_ip6,
2116 self.pg3.sw_if_index),
2117 VppRoutePath(self.pg4.remote_ip6,
2118 self.pg4.sw_if_index)])
2119 route_3000_2.add_vpp_config()
2121 route_4000_1 = VppIpRoute(self, "4000::1", 128,
2122 [VppRoutePath("3000::1",
2124 VppRoutePath("3000::2",
2126 route_4000_1.add_vpp_config()
2129 # inject the packet on pg0 - expect load-balancing across all 4 paths
2131 self.vapi.cli("clear trace")
2132 self.send_and_expect_load_balancing(self.pg0, port_pkts,
2133 [self.pg1, self.pg2,
2134 self.pg3, self.pg4])
2135 self.send_and_expect_load_balancing(self.pg0, src_pkts,
2136 [self.pg1, self.pg2,
2137 self.pg3, self.pg4])
2140 # Recursive prefixes
2141 # - testing that 2 stages of load-balancing no choices
2145 for ii in range(257):
2146 port_pkts.append((Ether(src=self.pg0.remote_mac,
2147 dst=self.pg0.local_mac) /
2150 inet6.UDP(sport=1234,
2152 Raw(b'\xa5' * 100)))
2154 route_5000_2 = VppIpRoute(self, "5000::2", 128,
2155 [VppRoutePath(self.pg3.remote_ip6,
2156 self.pg3.sw_if_index)])
2157 route_5000_2.add_vpp_config()
2159 route_6000_1 = VppIpRoute(self, "6000::1", 128,
2160 [VppRoutePath("5000::2",
2162 route_6000_1.add_vpp_config()
2165 # inject the packet on pg0 - expect load-balancing across all 4 paths
2167 self.vapi.cli("clear trace")
2168 self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg3)
2171 class TestIP6Punt(VppTestCase):
2172 """ IPv6 Punt Police/Redirect """
2175 def setUpClass(cls):
2176 super(TestIP6Punt, cls).setUpClass()
2179 def tearDownClass(cls):
2180 super(TestIP6Punt, cls).tearDownClass()
2183 super(TestIP6Punt, self).setUp()
2185 self.create_pg_interfaces(range(4))
2187 for i in self.pg_interfaces:
2193 super(TestIP6Punt, self).tearDown()
2194 for i in self.pg_interfaces:
2198 def test_ip_punt(self):
2199 """ IP6 punt police and redirect """
2201 p = (Ether(src=self.pg0.remote_mac,
2202 dst=self.pg0.local_mac) /
2203 IPv6(src=self.pg0.remote_ip6,
2204 dst=self.pg0.local_ip6) /
2205 inet6.TCP(sport=1234, dport=1234) /
2211 # Configure a punt redirect via pg1.
2213 nh_addr = self.pg1.remote_ip6
2214 ip_punt_redirect = VppIpPuntRedirect(self, self.pg0.sw_if_index,
2215 self.pg1.sw_if_index, nh_addr)
2216 ip_punt_redirect.add_vpp_config()
2218 self.send_and_expect(self.pg0, pkts, self.pg1)
2223 policer = VppPolicer(self, "ip6-punt", 400, 0, 10, 0, rate_type=1)
2224 policer.add_vpp_config()
2225 ip_punt_policer = VppIpPuntPolicer(self, policer.policer_index,
2227 ip_punt_policer.add_vpp_config()
2229 self.vapi.cli("clear trace")
2230 self.pg0.add_stream(pkts)
2231 self.pg_enable_capture(self.pg_interfaces)
2235 # the number of packet received should be greater than 0,
2236 # but not equal to the number sent, since some were policed
2238 rx = self.pg1._get_capture(1)
2239 self.assertGreater(len(rx), 0)
2240 self.assertLess(len(rx), len(pkts))
2243 # remove the policer. back to full rx
2245 ip_punt_policer.remove_vpp_config()
2246 policer.remove_vpp_config()
2247 self.send_and_expect(self.pg0, pkts, self.pg1)
2250 # remove the redirect. expect full drop.
2252 ip_punt_redirect.remove_vpp_config()
2253 self.send_and_assert_no_replies(self.pg0, pkts,
2254 "IP no punt config")
2257 # Add a redirect that is not input port selective
2259 ip_punt_redirect = VppIpPuntRedirect(self, 0xffffffff,
2260 self.pg1.sw_if_index, nh_addr)
2261 ip_punt_redirect.add_vpp_config()
2262 self.send_and_expect(self.pg0, pkts, self.pg1)
2263 ip_punt_redirect.remove_vpp_config()
2265 def test_ip_punt_dump(self):
2266 """ IP6 punt redirect dump"""
2269 # Configure a punt redirects
2271 nh_address = self.pg3.remote_ip6
2272 ipr_03 = VppIpPuntRedirect(self, self.pg0.sw_if_index,
2273 self.pg3.sw_if_index, nh_address)
2274 ipr_13 = VppIpPuntRedirect(self, self.pg1.sw_if_index,
2275 self.pg3.sw_if_index, nh_address)
2276 ipr_23 = VppIpPuntRedirect(self, self.pg2.sw_if_index,
2277 self.pg3.sw_if_index, '0::0')
2278 ipr_03.add_vpp_config()
2279 ipr_13.add_vpp_config()
2280 ipr_23.add_vpp_config()
2283 # Dump pg0 punt redirects
2285 self.assertTrue(ipr_03.query_vpp_config())
2286 self.assertTrue(ipr_13.query_vpp_config())
2287 self.assertTrue(ipr_23.query_vpp_config())
2290 # Dump punt redirects for all interfaces
2292 punts = self.vapi.ip_punt_redirect_dump(0xffffffff, is_ipv6=1)
2293 self.assertEqual(len(punts), 3)
2295 self.assertEqual(p.punt.tx_sw_if_index, self.pg3.sw_if_index)
2296 self.assertNotEqual(punts[1].punt.nh, self.pg3.remote_ip6)
2297 self.assertEqual(str(punts[2].punt.nh), '::')
2300 class TestIPDeag(VppTestCase):
2301 """ IPv6 Deaggregate Routes """
2304 def setUpClass(cls):
2305 super(TestIPDeag, cls).setUpClass()
2308 def tearDownClass(cls):
2309 super(TestIPDeag, cls).tearDownClass()
2312 super(TestIPDeag, self).setUp()
2314 self.create_pg_interfaces(range(3))
2316 for i in self.pg_interfaces:
2322 super(TestIPDeag, self).tearDown()
2323 for i in self.pg_interfaces:
2327 def test_ip_deag(self):
2328 """ IP Deag Routes """
2331 # Create a table to be used for:
2332 # 1 - another destination address lookup
2333 # 2 - a source address lookup
2335 table_dst = VppIpTable(self, 1, is_ip6=1)
2336 table_src = VppIpTable(self, 2, is_ip6=1)
2337 table_dst.add_vpp_config()
2338 table_src.add_vpp_config()
2341 # Add a route in the default table to point to a deag/
2342 # second lookup in each of these tables
2344 route_to_dst = VppIpRoute(self, "1::1", 128,
2348 route_to_src = VppIpRoute(
2353 type=FibPathType.FIB_PATH_TYPE_SOURCE_LOOKUP)])
2355 route_to_dst.add_vpp_config()
2356 route_to_src.add_vpp_config()
2359 # packets to these destination are dropped, since they'll
2360 # hit the respective default routes in the second table
2362 p_dst = (Ether(src=self.pg0.remote_mac,
2363 dst=self.pg0.local_mac) /
2364 IPv6(src="5::5", dst="1::1") /
2365 inet6.TCP(sport=1234, dport=1234) /
2367 p_src = (Ether(src=self.pg0.remote_mac,
2368 dst=self.pg0.local_mac) /
2369 IPv6(src="2::2", dst="1::2") /
2370 inet6.TCP(sport=1234, dport=1234) /
2372 pkts_dst = p_dst * 257
2373 pkts_src = p_src * 257
2375 self.send_and_assert_no_replies(self.pg0, pkts_dst,
2377 self.send_and_assert_no_replies(self.pg0, pkts_src,
2381 # add a route in the dst table to forward via pg1
2383 route_in_dst = VppIpRoute(self, "1::1", 128,
2384 [VppRoutePath(self.pg1.remote_ip6,
2385 self.pg1.sw_if_index)],
2387 route_in_dst.add_vpp_config()
2389 self.send_and_expect(self.pg0, pkts_dst, self.pg1)
2392 # add a route in the src table to forward via pg2
2394 route_in_src = VppIpRoute(self, "2::2", 128,
2395 [VppRoutePath(self.pg2.remote_ip6,
2396 self.pg2.sw_if_index)],
2398 route_in_src.add_vpp_config()
2399 self.send_and_expect(self.pg0, pkts_src, self.pg2)
2402 # loop in the lookup DP
2404 route_loop = VppIpRoute(self, "3::3", 128,
2407 route_loop.add_vpp_config()
2409 p_l = (Ether(src=self.pg0.remote_mac,
2410 dst=self.pg0.local_mac) /
2411 IPv6(src="3::4", dst="3::3") /
2412 inet6.TCP(sport=1234, dport=1234) /
2415 self.send_and_assert_no_replies(self.pg0, p_l * 257,
2419 class TestIP6Input(VppTestCase):
2420 """ IPv6 Input Exception Test Cases """
2423 def setUpClass(cls):
2424 super(TestIP6Input, cls).setUpClass()
2427 def tearDownClass(cls):
2428 super(TestIP6Input, cls).tearDownClass()
2431 super(TestIP6Input, self).setUp()
2433 self.create_pg_interfaces(range(2))
2435 for i in self.pg_interfaces:
2441 super(TestIP6Input, self).tearDown()
2442 for i in self.pg_interfaces:
2446 def test_ip_input_icmp_reply(self):
2447 """ IP6 Input Exception - Return ICMP (3,0) """
2449 # hop limit - ICMP replies
2451 p_version = (Ether(src=self.pg0.remote_mac,
2452 dst=self.pg0.local_mac) /
2453 IPv6(src=self.pg0.remote_ip6,
2454 dst=self.pg1.remote_ip6,
2456 inet6.UDP(sport=1234, dport=1234) /
2459 rx = self.send_and_expect(self.pg0, p_version * NUM_PKTS, self.pg0)
2461 icmp = rx[ICMPv6TimeExceeded]
2463 # 0: "hop limit exceeded in transit",
2464 self.assertEqual((icmp.type, icmp.code), (3, 0))
2466 icmpv6_data = '\x0a' * 18
2468 all_1s = "FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF"
2470 @parameterized.expand([
2471 # Name, src, dst, l4proto, msg, timeout
2472 ("src='iface', dst='iface'", None, None,
2473 inet6.UDP(sport=1234, dport=1234), "funky version", None),
2474 ("src='All 0's', dst='iface'", all_0s, None,
2475 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2476 ("src='iface', dst='All 0's'", None, all_0s,
2477 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2478 ("src='All 1's', dst='iface'", all_1s, None,
2479 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2480 ("src='iface', dst='All 1's'", None, all_1s,
2481 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2482 ("src='All 1's', dst='All 1's'", all_1s, all_1s,
2483 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2486 def test_ip_input_no_replies(self, name, src, dst, l4, msg, timeout):
2488 self._testMethodDoc = 'IPv6 Input Exception - %s' % name
2490 p_version = (Ether(src=self.pg0.remote_mac,
2491 dst=self.pg0.local_mac) /
2492 IPv6(src=src or self.pg0.remote_ip6,
2493 dst=dst or self.pg1.remote_ip6,
2498 self.send_and_assert_no_replies(self.pg0, p_version * NUM_PKTS,
2502 def test_hop_by_hop(self):
2503 """ Hop-by-hop header test """
2505 p = (Ether(src=self.pg0.remote_mac,
2506 dst=self.pg0.local_mac) /
2507 IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6) /
2508 IPv6ExtHdrHopByHop() /
2509 inet6.UDP(sport=1234, dport=1234) /
2512 self.pg0.add_stream(p)
2513 self.pg_enable_capture(self.pg_interfaces)
2517 class TestIPReplace(VppTestCase):
2518 """ IPv6 Table Replace """
2521 def setUpClass(cls):
2522 super(TestIPReplace, cls).setUpClass()
2525 def tearDownClass(cls):
2526 super(TestIPReplace, cls).tearDownClass()
2529 super(TestIPReplace, self).setUp()
2531 self.create_pg_interfaces(range(4))
2536 for i in self.pg_interfaces:
2539 i.generate_remote_hosts(2)
2540 self.tables.append(VppIpTable(self, table_id,
2541 True).add_vpp_config())
2545 super(TestIPReplace, self).tearDown()
2546 for i in self.pg_interfaces:
2550 def test_replace(self):
2551 """ IP Table Replace """
2553 MRouteItfFlags = VppEnum.vl_api_mfib_itf_flags_t
2554 MRouteEntryFlags = VppEnum.vl_api_mfib_entry_flags_t
2556 links = [self.pg0, self.pg1, self.pg2, self.pg3]
2557 routes = [[], [], [], []]
2559 # the sizes of 'empty' tables
2560 for t in self.tables:
2561 self.assertEqual(len(t.dump()), 2)
2562 self.assertEqual(len(t.mdump()), 5)
2564 # load up the tables with some routes
2565 for ii, t in enumerate(self.tables):
2566 for jj in range(1, N_ROUTES):
2568 self, "2001::%d" % jj if jj != 0 else "2001::", 128,
2569 [VppRoutePath(links[ii].remote_hosts[0].ip6,
2570 links[ii].sw_if_index),
2571 VppRoutePath(links[ii].remote_hosts[1].ip6,
2572 links[ii].sw_if_index)],
2573 table_id=t.table_id).add_vpp_config()
2574 multi = VppIpMRoute(
2576 "ff:2001::%d" % jj, 128,
2577 MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
2578 [VppMRoutePath(self.pg0.sw_if_index,
2579 MRouteItfFlags.MFIB_API_ITF_FLAG_ACCEPT,
2580 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
2581 VppMRoutePath(self.pg1.sw_if_index,
2582 MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD,
2583 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
2584 VppMRoutePath(self.pg2.sw_if_index,
2585 MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD,
2586 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
2587 VppMRoutePath(self.pg3.sw_if_index,
2588 MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD,
2589 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6)],
2590 table_id=t.table_id).add_vpp_config()
2591 routes[ii].append({'uni': uni,
2595 # replace the tables a few times
2598 # replace each table
2599 for t in self.tables:
2602 # all the routes are still there
2603 for ii, t in enumerate(self.tables):
2606 for r in routes[ii]:
2607 self.assertTrue(find_route_in_dump(dump, r['uni'], t))
2608 self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
2610 # redownload the even numbered routes
2611 for ii, t in enumerate(self.tables):
2612 for jj in range(0, N_ROUTES, 2):
2613 routes[ii][jj]['uni'].add_vpp_config()
2614 routes[ii][jj]['multi'].add_vpp_config()
2616 # signal each table converged
2617 for t in self.tables:
2620 # we should find the even routes, but not the odd
2621 for ii, t in enumerate(self.tables):
2624 for jj in range(0, N_ROUTES, 2):
2625 self.assertTrue(find_route_in_dump(
2626 dump, routes[ii][jj]['uni'], t))
2627 self.assertTrue(find_mroute_in_dump(
2628 mdump, routes[ii][jj]['multi'], t))
2629 for jj in range(1, N_ROUTES - 1, 2):
2630 self.assertFalse(find_route_in_dump(
2631 dump, routes[ii][jj]['uni'], t))
2632 self.assertFalse(find_mroute_in_dump(
2633 mdump, routes[ii][jj]['multi'], t))
2635 # reload all the routes
2636 for ii, t in enumerate(self.tables):
2637 for r in routes[ii]:
2638 r['uni'].add_vpp_config()
2639 r['multi'].add_vpp_config()
2641 # all the routes are still there
2642 for ii, t in enumerate(self.tables):
2645 for r in routes[ii]:
2646 self.assertTrue(find_route_in_dump(dump, r['uni'], t))
2647 self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
2650 # finally flush the tables for good measure
2652 for t in self.tables:
2654 self.assertEqual(len(t.dump()), 2)
2655 self.assertEqual(len(t.mdump()), 5)
2658 class TestIP6Replace(VppTestCase):
2659 """ IPv4 Interface Address Replace """
2662 def setUpClass(cls):
2663 super(TestIP6Replace, cls).setUpClass()
2666 def tearDownClass(cls):
2667 super(TestIP6Replace, cls).tearDownClass()
2670 super(TestIP6Replace, self).setUp()
2672 self.create_pg_interfaces(range(4))
2674 for i in self.pg_interfaces:
2678 super(TestIP6Replace, self).tearDown()
2679 for i in self.pg_interfaces:
2682 def get_n_pfxs(self, intf):
2683 return len(self.vapi.ip_address_dump(intf.sw_if_index, True))
2685 def test_replace(self):
2686 """ IP interface address replace """
2688 intf_pfxs = [[], [], [], []]
2690 # add prefixes to each of the interfaces
2691 for i in range(len(self.pg_interfaces)):
2692 intf = self.pg_interfaces[i]
2695 addr = "2001:16:%d::1" % intf.sw_if_index
2696 a = VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
2697 intf_pfxs[i].append(a)
2699 # 2001:16:x::2/64 - a different address in the same subnet as above
2700 addr = "2001:16:%d::2" % intf.sw_if_index
2701 a = VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
2702 intf_pfxs[i].append(a)
2704 # 2001:15:x::2/64 - a different address and subnet
2705 addr = "2001:15:%d::2" % intf.sw_if_index
2706 a = VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
2707 intf_pfxs[i].append(a)
2709 # a dump should n_address in it
2710 for intf in self.pg_interfaces:
2711 self.assertEqual(self.get_n_pfxs(intf), 3)
2714 # remove all the address thru a replace
2716 self.vapi.sw_interface_address_replace_begin()
2717 self.vapi.sw_interface_address_replace_end()
2718 for intf in self.pg_interfaces:
2719 self.assertEqual(self.get_n_pfxs(intf), 0)
2722 # add all the interface addresses back
2727 for intf in self.pg_interfaces:
2728 self.assertEqual(self.get_n_pfxs(intf), 3)
2731 # replace again, but this time update/re-add the address on the first
2734 self.vapi.sw_interface_address_replace_begin()
2736 for p in intf_pfxs[:2]:
2740 self.vapi.sw_interface_address_replace_end()
2742 # on the first two the address still exist,
2743 # on the other two they do not
2744 for intf in self.pg_interfaces[:2]:
2745 self.assertEqual(self.get_n_pfxs(intf), 3)
2746 for p in intf_pfxs[:2]:
2748 self.assertTrue(v.query_vpp_config())
2749 for intf in self.pg_interfaces[2:]:
2750 self.assertEqual(self.get_n_pfxs(intf), 0)
2753 # add all the interface addresses back on the last two
2755 for p in intf_pfxs[2:]:
2758 for intf in self.pg_interfaces:
2759 self.assertEqual(self.get_n_pfxs(intf), 3)
2762 # replace again, this time add different prefixes on all the interfaces
2764 self.vapi.sw_interface_address_replace_begin()
2767 for intf in self.pg_interfaces:
2769 addr = "2001:18:%d::1" % intf.sw_if_index
2770 pfxs.append(VppIpInterfaceAddress(self, intf, addr,
2771 64).add_vpp_config())
2773 self.vapi.sw_interface_address_replace_end()
2775 # only .18 should exist on each interface
2776 for intf in self.pg_interfaces:
2777 self.assertEqual(self.get_n_pfxs(intf), 1)
2779 self.assertTrue(pfx.query_vpp_config())
2784 self.vapi.sw_interface_address_replace_begin()
2785 self.vapi.sw_interface_address_replace_end()
2786 for intf in self.pg_interfaces:
2787 self.assertEqual(self.get_n_pfxs(intf), 0)
2790 # add prefixes to each interface. post-begin add the prefix from
2791 # interface X onto interface Y. this would normally be an error
2792 # since it would generate a 'duplicate address' warning. but in
2793 # this case, since what is newly downloaded is sane, it's ok
2795 for intf in self.pg_interfaces:
2797 addr = "2001:18:%d::1" % intf.sw_if_index
2798 VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
2800 self.vapi.sw_interface_address_replace_begin()
2803 for intf in self.pg_interfaces:
2805 addr = "2001:18:%d::1" % (intf.sw_if_index + 1)
2806 pfxs.append(VppIpInterfaceAddress(self, intf,
2807 addr, 64).add_vpp_config())
2809 self.vapi.sw_interface_address_replace_end()
2811 self.logger.info(self.vapi.cli("sh int addr"))
2813 for intf in self.pg_interfaces:
2814 self.assertEqual(self.get_n_pfxs(intf), 1)
2816 self.assertTrue(pfx.query_vpp_config())
2819 class TestIP6LinkLocal(VppTestCase):
2820 """ IPv6 Link Local """
2823 def setUpClass(cls):
2824 super(TestIP6LinkLocal, cls).setUpClass()
2827 def tearDownClass(cls):
2828 super(TestIP6LinkLocal, cls).tearDownClass()
2831 super(TestIP6LinkLocal, self).setUp()
2833 self.create_pg_interfaces(range(2))
2835 for i in self.pg_interfaces:
2839 super(TestIP6LinkLocal, self).tearDown()
2840 for i in self.pg_interfaces:
2843 def test_ip6_ll(self):
2844 """ IPv6 Link Local """
2847 # two APIs to add a link local address.
2848 # 1 - just like any other prefix
2849 # 2 - with the special set LL API
2853 # First with the API to set a 'normal' prefix
2859 VppIpInterfaceAddress(self, self.pg0, ll1, 128).add_vpp_config()
2862 # should be able to ping the ll
2864 p_echo_request_1 = (Ether(src=self.pg0.remote_mac,
2865 dst=self.pg0.local_mac) /
2868 ICMPv6EchoRequest())
2870 self.send_and_expect(self.pg0, [p_echo_request_1], self.pg0)
2873 # change the link-local on pg0
2875 v_ll3 = VppIpInterfaceAddress(self, self.pg0,
2876 ll3, 128).add_vpp_config()
2878 p_echo_request_3 = (Ether(src=self.pg0.remote_mac,
2879 dst=self.pg0.local_mac) /
2882 ICMPv6EchoRequest())
2884 self.send_and_expect(self.pg0, [p_echo_request_3], self.pg0)
2887 # set a normal v6 prefix on the link
2889 self.pg0.config_ip6()
2891 self.send_and_expect(self.pg0, [p_echo_request_3], self.pg0)
2893 # the link-local cannot be removed
2894 with self.vapi.assert_negative_api_retval():
2895 v_ll3.remove_vpp_config()
2898 # Use the specific link-local API on pg1
2900 VppIp6LinkLocalAddress(self, self.pg1, ll1).add_vpp_config()
2901 self.send_and_expect(self.pg1, [p_echo_request_1], self.pg1)
2903 VppIp6LinkLocalAddress(self, self.pg1, ll3).add_vpp_config()
2904 self.send_and_expect(self.pg1, [p_echo_request_3], self.pg1)
2907 if __name__ == '__main__':
2908 unittest.main(testRunner=VppTestRunner)