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_ip import DpoProto
25 from vpp_ip_route import VppIpRoute, VppRoutePath, find_route, VppIpMRoute, \
26 VppMRoutePath, MRouteItfFlags, MRouteEntryFlags, VppMplsIpBind, \
27 VppMplsRoute, VppMplsTable, VppIpTable, FibPathType, FibPathProto, \
28 VppIpInterfaceAddress, find_route_in_dump, find_mroute_in_dump, \
29 VppIp6LinkLocalAddress
30 from vpp_neighbor import find_nbr, VppNeighbor
31 from vpp_pg_interface import is_ipv6_misc
32 from vpp_sub_interface import VppSubInterface, VppDot1QSubint
33 from vpp_policer import VppPolicer
34 from ipaddress import IPv6Network, IPv6Address
36 AF_INET6 = socket.AF_INET6
46 class TestIPv6ND(VppTestCase):
47 def validate_ra(self, intf, rx, dst_ip=None):
49 dst_ip = intf.remote_ip6
51 # unicasted packets must come to the unicast mac
52 self.assertEqual(rx[Ether].dst, intf.remote_mac)
54 # and from the router's MAC
55 self.assertEqual(rx[Ether].src, intf.local_mac)
57 # the rx'd RA should be addressed to the sender's source
58 self.assertTrue(rx.haslayer(ICMPv6ND_RA))
59 self.assertEqual(in6_ptop(rx[IPv6].dst),
62 # and come from the router's link local
63 self.assertTrue(in6_islladdr(rx[IPv6].src))
64 self.assertEqual(in6_ptop(rx[IPv6].src),
65 in6_ptop(mk_ll_addr(intf.local_mac)))
67 def validate_na(self, intf, rx, dst_ip=None, tgt_ip=None):
69 dst_ip = intf.remote_ip6
71 dst_ip = intf.local_ip6
73 # unicasted packets must come to the unicast mac
74 self.assertEqual(rx[Ether].dst, intf.remote_mac)
76 # and from the router's MAC
77 self.assertEqual(rx[Ether].src, intf.local_mac)
79 # the rx'd NA should be addressed to the sender's source
80 self.assertTrue(rx.haslayer(ICMPv6ND_NA))
81 self.assertEqual(in6_ptop(rx[IPv6].dst),
84 # and come from the target address
86 in6_ptop(rx[IPv6].src), in6_ptop(tgt_ip))
88 # Dest link-layer options should have the router's MAC
89 dll = rx[ICMPv6NDOptDstLLAddr]
90 self.assertEqual(dll.lladdr, intf.local_mac)
92 def validate_ns(self, intf, rx, tgt_ip):
93 nsma = in6_getnsma(inet_pton(AF_INET6, tgt_ip))
94 dst_ip = inet_ntop(AF_INET6, nsma)
97 self.assertEqual(rx[Ether].dst, in6_getnsmac(nsma))
99 # and from the router's MAC
100 self.assertEqual(rx[Ether].src, intf.local_mac)
102 # the rx'd NS should be addressed to an mcast address
103 # derived from the target address
105 in6_ptop(rx[IPv6].dst), in6_ptop(dst_ip))
107 # expect the tgt IP in the NS header
109 self.assertEqual(in6_ptop(ns.tgt), in6_ptop(tgt_ip))
111 # packet is from the router's local address
113 in6_ptop(rx[IPv6].src), intf.local_ip6)
115 # Src link-layer options should have the router's MAC
116 sll = rx[ICMPv6NDOptSrcLLAddr]
117 self.assertEqual(sll.lladdr, intf.local_mac)
119 def send_and_expect_ra(self, intf, pkts, remark, dst_ip=None,
120 filter_out_fn=is_ipv6_misc):
121 intf.add_stream(pkts)
122 self.pg_enable_capture(self.pg_interfaces)
124 rx = intf.get_capture(1, filter_out_fn=filter_out_fn)
126 self.assertEqual(len(rx), 1)
128 self.validate_ra(intf, rx, dst_ip)
130 def send_and_expect_na(self, intf, pkts, remark, dst_ip=None,
132 filter_out_fn=is_ipv6_misc):
133 intf.add_stream(pkts)
134 self.pg_enable_capture(self.pg_interfaces)
136 rx = intf.get_capture(1, filter_out_fn=filter_out_fn)
138 self.assertEqual(len(rx), 1)
140 self.validate_na(intf, rx, dst_ip, tgt_ip)
142 def send_and_expect_ns(self, tx_intf, rx_intf, pkts, tgt_ip,
143 filter_out_fn=is_ipv6_misc):
144 self.vapi.cli("clear trace")
145 tx_intf.add_stream(pkts)
146 self.pg_enable_capture(self.pg_interfaces)
148 rx = rx_intf.get_capture(1, filter_out_fn=filter_out_fn)
150 self.assertEqual(len(rx), 1)
152 self.validate_ns(rx_intf, rx, tgt_ip)
154 def verify_ip(self, rx, smac, dmac, sip, dip):
156 self.assertEqual(ether.dst, dmac)
157 self.assertEqual(ether.src, smac)
160 self.assertEqual(ip.src, sip)
161 self.assertEqual(ip.dst, dip)
164 class TestIPv6(TestIPv6ND):
165 """ IPv6 Test Case """
169 super(TestIPv6, cls).setUpClass()
172 def tearDownClass(cls):
173 super(TestIPv6, cls).tearDownClass()
177 Perform test setup before test case.
180 - create 3 pg interfaces
181 - untagged pg0 interface
182 - Dot1Q subinterface on pg1
183 - Dot1AD subinterface on pg2
185 - put it into UP state
187 - resolve neighbor address using NDP
188 - configure 200 fib entries
190 :ivar list interfaces: pg interfaces and subinterfaces.
191 :ivar dict flows: IPv4 packet flows in test.
193 *TODO:* Create AD sub interface
195 super(TestIPv6, self).setUp()
197 # create 3 pg interfaces
198 self.create_pg_interfaces(range(3))
200 # create 2 subinterfaces for p1 and pg2
201 self.sub_interfaces = [
202 VppDot1QSubint(self, self.pg1, 100),
203 VppDot1QSubint(self, self.pg2, 200)
204 # TODO: VppDot1ADSubint(self, self.pg2, 200, 300, 400)
207 # packet flows mapping pg0 -> pg1.sub, pg2.sub, etc.
209 self.flows[self.pg0] = [self.pg1.sub_if, self.pg2.sub_if]
210 self.flows[self.pg1.sub_if] = [self.pg0, self.pg2.sub_if]
211 self.flows[self.pg2.sub_if] = [self.pg0, self.pg1.sub_if]
214 self.pg_if_packet_sizes = [64, 1500, 9020]
216 self.interfaces = list(self.pg_interfaces)
217 self.interfaces.extend(self.sub_interfaces)
219 # setup all interfaces
220 for i in self.interfaces:
226 """Run standard test teardown and log ``show ip6 neighbors``."""
227 for i in self.interfaces:
230 for i in self.sub_interfaces:
231 i.remove_vpp_config()
233 super(TestIPv6, self).tearDown()
234 if not self.vpp_dead:
235 self.logger.info(self.vapi.cli("show ip6 neighbors"))
236 # info(self.vapi.cli("show ip6 fib")) # many entries
238 def modify_packet(self, src_if, packet_size, pkt):
239 """Add load, set destination IP and extend packet to required packet
240 size for defined interface.
242 :param VppInterface src_if: Interface to create packet for.
243 :param int packet_size: Required packet size.
244 :param Scapy pkt: Packet to be modified.
246 dst_if_idx = int(packet_size / 10 % 2)
247 dst_if = self.flows[src_if][dst_if_idx]
248 info = self.create_packet_info(src_if, dst_if)
249 payload = self.info_to_payload(info)
250 p = pkt / Raw(payload)
251 p[IPv6].dst = dst_if.remote_ip6
253 if isinstance(src_if, VppSubInterface):
254 p = src_if.add_dot1_layer(p)
255 self.extend_packet(p, packet_size)
259 def create_stream(self, src_if):
260 """Create input packet stream for defined interface.
262 :param VppInterface src_if: Interface to create packet stream for.
264 hdr_ext = 4 if isinstance(src_if, VppSubInterface) else 0
265 pkt_tmpl = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
266 IPv6(src=src_if.remote_ip6) /
267 inet6.UDP(sport=1234, dport=1234))
269 pkts = [self.modify_packet(src_if, i, pkt_tmpl)
270 for i in moves.range(self.pg_if_packet_sizes[0],
271 self.pg_if_packet_sizes[1], 10)]
272 pkts_b = [self.modify_packet(src_if, i, pkt_tmpl)
273 for i in moves.range(self.pg_if_packet_sizes[1] + hdr_ext,
274 self.pg_if_packet_sizes[2] + hdr_ext,
280 def verify_capture(self, dst_if, capture):
281 """Verify captured input packet stream for defined interface.
283 :param VppInterface dst_if: Interface to verify captured packet stream
285 :param list capture: Captured packet stream.
287 self.logger.info("Verifying capture on interface %s" % dst_if.name)
289 for i in self.interfaces:
290 last_info[i.sw_if_index] = None
292 dst_sw_if_index = dst_if.sw_if_index
293 if hasattr(dst_if, 'parent'):
295 for packet in capture:
297 # Check VLAN tags and Ethernet header
298 packet = dst_if.remove_dot1_layer(packet)
299 self.assertTrue(Dot1Q not in packet)
302 udp = packet[inet6.UDP]
303 payload_info = self.payload_to_info(packet[Raw])
304 packet_index = payload_info.index
305 self.assertEqual(payload_info.dst, dst_sw_if_index)
307 "Got packet on port %s: src=%u (id=%u)" %
308 (dst_if.name, payload_info.src, packet_index))
309 next_info = self.get_next_packet_info_for_interface2(
310 payload_info.src, dst_sw_if_index,
311 last_info[payload_info.src])
312 last_info[payload_info.src] = next_info
313 self.assertTrue(next_info is not None)
314 self.assertEqual(packet_index, next_info.index)
315 saved_packet = next_info.data
316 # Check standard fields
318 ip.src, saved_packet[IPv6].src)
320 ip.dst, saved_packet[IPv6].dst)
322 udp.sport, saved_packet[inet6.UDP].sport)
324 udp.dport, saved_packet[inet6.UDP].dport)
326 self.logger.error(ppp("Unexpected or invalid packet:", packet))
328 for i in self.interfaces:
329 remaining_packet = self.get_next_packet_info_for_interface2(
330 i.sw_if_index, dst_sw_if_index, last_info[i.sw_if_index])
331 self.assertTrue(remaining_packet is None,
332 "Interface %s: Packet expected from interface %s "
333 "didn't arrive" % (dst_if.name, i.name))
335 def test_next_header_anomaly(self):
336 """ IPv6 next header anomaly test
339 - ipv6 next header field = Fragment Header (44)
340 - next header is ICMPv6 Echo Request
341 - wait for reassembly
343 pkt = (Ether(src=self.pg0.local_mac, dst=self.pg0.remote_mac) /
344 IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6, nh=44) /
347 self.pg0.add_stream(pkt)
350 # wait for reassembly
357 - Create IPv6 stream for pg0 interface
358 - Create IPv6 tagged streams for pg1's and pg2's subinterface.
359 - Send and verify received packets on each interface.
362 pkts = self.create_stream(self.pg0)
363 self.pg0.add_stream(pkts)
365 for i in self.sub_interfaces:
366 pkts = self.create_stream(i)
367 i.parent.add_stream(pkts)
369 self.pg_enable_capture(self.pg_interfaces)
372 pkts = self.pg0.get_capture()
373 self.verify_capture(self.pg0, pkts)
375 for i in self.sub_interfaces:
376 pkts = i.parent.get_capture()
377 self.verify_capture(i, pkts)
380 """ IPv6 Neighbour Solicitation Exceptions
383 - Send an NS Sourced from an address not covered by the link sub-net
384 - Send an NS to an mcast address the router has not joined
385 - Send NS for a target address the router does not onn.
389 # An NS from a non link source address
391 nsma = in6_getnsma(inet_pton(AF_INET6, self.pg0.local_ip6))
392 d = inet_ntop(AF_INET6, nsma)
394 p = (Ether(dst=in6_getnsmac(nsma)) /
395 IPv6(dst=d, src="2002::2") /
396 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
397 ICMPv6NDOptSrcLLAddr(
398 lladdr=self.pg0.remote_mac))
401 self.send_and_assert_no_replies(
403 "No response to NS source by address not on sub-net")
406 # An NS for sent to a solicited mcast group the router is
407 # not a member of FAILS
410 nsma = in6_getnsma(inet_pton(AF_INET6, "fd::ffff"))
411 d = inet_ntop(AF_INET6, nsma)
413 p = (Ether(dst=in6_getnsmac(nsma)) /
414 IPv6(dst=d, src=self.pg0.remote_ip6) /
415 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
416 ICMPv6NDOptSrcLLAddr(
417 lladdr=self.pg0.remote_mac))
420 self.send_and_assert_no_replies(
422 "No response to NS sent to unjoined mcast address")
425 # An NS whose target address is one the router does not own
427 nsma = in6_getnsma(inet_pton(AF_INET6, self.pg0.local_ip6))
428 d = inet_ntop(AF_INET6, nsma)
430 p = (Ether(dst=in6_getnsmac(nsma)) /
431 IPv6(dst=d, src=self.pg0.remote_ip6) /
432 ICMPv6ND_NS(tgt="fd::ffff") /
433 ICMPv6NDOptSrcLLAddr(
434 lladdr=self.pg0.remote_mac))
437 self.send_and_assert_no_replies(self.pg0, pkts,
438 "No response to NS for unknown target")
441 # A neighbor entry that has no associated FIB-entry
443 self.pg0.generate_remote_hosts(4)
444 nd_entry = VppNeighbor(self,
445 self.pg0.sw_if_index,
446 self.pg0.remote_hosts[2].mac,
447 self.pg0.remote_hosts[2].ip6,
449 nd_entry.add_vpp_config()
452 # check we have the neighbor, but no route
454 self.assertTrue(find_nbr(self,
455 self.pg0.sw_if_index,
456 self.pg0._remote_hosts[2].ip6))
457 self.assertFalse(find_route(self,
458 self.pg0._remote_hosts[2].ip6,
462 # send an NS from a link local address to the interface's global
465 p = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
467 dst=d, src=self.pg0._remote_hosts[2].ip6_ll) /
468 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
469 ICMPv6NDOptSrcLLAddr(
470 lladdr=self.pg0.remote_mac))
472 self.send_and_expect_na(self.pg0, p,
473 "NS from link-local",
474 dst_ip=self.pg0._remote_hosts[2].ip6_ll,
475 tgt_ip=self.pg0.local_ip6)
478 # we should have learned an ND entry for the peer's link-local
479 # but not inserted a route to it in the FIB
481 self.assertTrue(find_nbr(self,
482 self.pg0.sw_if_index,
483 self.pg0._remote_hosts[2].ip6_ll))
484 self.assertFalse(find_route(self,
485 self.pg0._remote_hosts[2].ip6_ll,
489 # An NS to the router's own Link-local
491 p = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
493 dst=d, src=self.pg0._remote_hosts[3].ip6_ll) /
494 ICMPv6ND_NS(tgt=self.pg0.local_ip6_ll) /
495 ICMPv6NDOptSrcLLAddr(
496 lladdr=self.pg0.remote_mac))
498 self.send_and_expect_na(self.pg0, p,
499 "NS to/from link-local",
500 dst_ip=self.pg0._remote_hosts[3].ip6_ll,
501 tgt_ip=self.pg0.local_ip6_ll)
504 # we should have learned an ND entry for the peer's link-local
505 # but not inserted a route to it in the FIB
507 self.assertTrue(find_nbr(self,
508 self.pg0.sw_if_index,
509 self.pg0._remote_hosts[3].ip6_ll))
510 self.assertFalse(find_route(self,
511 self.pg0._remote_hosts[3].ip6_ll,
514 def test_ns_duplicates(self):
518 # Generate some hosts on the LAN
520 self.pg1.generate_remote_hosts(3)
523 # Add host 1 on pg1 and pg2
525 ns_pg1 = VppNeighbor(self,
526 self.pg1.sw_if_index,
527 self.pg1.remote_hosts[1].mac,
528 self.pg1.remote_hosts[1].ip6)
529 ns_pg1.add_vpp_config()
530 ns_pg2 = VppNeighbor(self,
531 self.pg2.sw_if_index,
533 self.pg1.remote_hosts[1].ip6)
534 ns_pg2.add_vpp_config()
537 # IP packet destined for pg1 remote host arrives on pg1 again.
539 p = (Ether(dst=self.pg0.local_mac,
540 src=self.pg0.remote_mac) /
541 IPv6(src=self.pg0.remote_ip6,
542 dst=self.pg1.remote_hosts[1].ip6) /
543 inet6.UDP(sport=1234, dport=1234) /
546 self.pg0.add_stream(p)
547 self.pg_enable_capture(self.pg_interfaces)
550 rx1 = self.pg1.get_capture(1)
552 self.verify_ip(rx1[0],
554 self.pg1.remote_hosts[1].mac,
556 self.pg1.remote_hosts[1].ip6)
559 # remove the duplicate on pg1
560 # packet stream should generate NSs out of pg1
562 ns_pg1.remove_vpp_config()
564 self.send_and_expect_ns(self.pg0, self.pg1,
565 p, self.pg1.remote_hosts[1].ip6)
570 ns_pg1.add_vpp_config()
572 self.pg0.add_stream(p)
573 self.pg_enable_capture(self.pg_interfaces)
576 rx1 = self.pg1.get_capture(1)
578 self.verify_ip(rx1[0],
580 self.pg1.remote_hosts[1].mac,
582 self.pg1.remote_hosts[1].ip6)
584 def validate_ra(self, intf, rx, dst_ip=None, src_ip=None,
585 mtu=9000, pi_opt=None):
587 dst_ip = intf.remote_ip6
589 src_ip = mk_ll_addr(intf.local_mac)
591 # unicasted packets must come to the unicast mac
592 self.assertEqual(rx[Ether].dst, intf.remote_mac)
594 # and from the router's MAC
595 self.assertEqual(rx[Ether].src, intf.local_mac)
597 # the rx'd RA should be addressed to the sender's source
598 self.assertTrue(rx.haslayer(ICMPv6ND_RA))
599 self.assertEqual(in6_ptop(rx[IPv6].dst),
602 # and come from the router's link local
603 self.assertTrue(in6_islladdr(rx[IPv6].src))
604 self.assertEqual(in6_ptop(rx[IPv6].src), in6_ptop(src_ip))
606 # it should contain the links MTU
608 self.assertEqual(ra[ICMPv6NDOptMTU].mtu, mtu)
610 # it should contain the source's link layer address option
611 sll = ra[ICMPv6NDOptSrcLLAddr]
612 self.assertEqual(sll.lladdr, intf.local_mac)
615 # the RA should not contain prefix information
616 self.assertFalse(ra.haslayer(
617 ICMPv6NDOptPrefixInfo))
619 raos = rx.getlayer(ICMPv6NDOptPrefixInfo, 1)
621 # the options are nested in the scapy packet in way that i cannot
622 # decipher how to decode. this 1st layer of option always returns
623 # nested classes, so a direct obj1=obj2 comparison always fails.
624 # however, the getlayer(.., 2) does give one instance.
625 # so we cheat here and construct a new opt instance for comparison
626 rd = ICMPv6NDOptPrefixInfo(
627 prefixlen=raos.prefixlen,
631 if type(pi_opt) is list:
632 for ii in range(len(pi_opt)):
633 self.assertEqual(pi_opt[ii], rd)
635 ICMPv6NDOptPrefixInfo, ii + 2)
637 self.assertEqual(pi_opt, raos, 'Expected: %s, received: %s'
638 % (pi_opt.show(dump=True),
639 raos.show(dump=True)))
641 def send_and_expect_ra(self, intf, pkts, remark, dst_ip=None,
642 filter_out_fn=is_ipv6_misc,
645 self.vapi.cli("clear trace")
646 intf.add_stream(pkts)
647 self.pg_enable_capture(self.pg_interfaces)
649 rx = intf.get_capture(1, filter_out_fn=filter_out_fn)
651 self.assertEqual(len(rx), 1)
653 self.validate_ra(intf, rx, dst_ip, src_ip=src_ip, pi_opt=opt)
656 """ IPv6 Router Solicitation Exceptions
662 # Before we begin change the IPv6 RA responses to use the unicast
663 # address - that way we will not confuse them with the periodic
664 # RAs which go to the mcast address
665 # Sit and wait for the first periodic RA.
669 self.pg0.ip6_ra_config(send_unicast=1)
672 # An RS from a link source address
673 # - expect an RA in return
675 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
676 IPv6(dst=self.pg0.local_ip6, src=self.pg0.remote_ip6) /
679 self.send_and_expect_ra(self.pg0, pkts, "Genuine RS")
682 # For the next RS sent the RA should be rate limited
684 self.send_and_assert_no_replies(self.pg0, pkts, "RA rate limited")
687 # When we reconfigure the IPv6 RA config,
688 # we reset the RA rate limiting,
689 # so we need to do this before each test below so as not to drop
690 # packets for rate limiting reasons. Test this works here.
692 self.pg0.ip6_ra_config(send_unicast=1)
693 self.send_and_expect_ra(self.pg0, pkts, "Rate limit reset RS")
696 # An RS sent from a non-link local source
698 self.pg0.ip6_ra_config(send_unicast=1)
699 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
700 IPv6(dst=self.pg0.local_ip6,
704 self.send_and_assert_no_replies(self.pg0, pkts,
705 "RS from non-link source")
708 # Source an RS from a link local address
710 self.pg0.ip6_ra_config(send_unicast=1)
711 ll = mk_ll_addr(self.pg0.remote_mac)
712 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
713 IPv6(dst=self.pg0.local_ip6, src=ll) /
716 self.send_and_expect_ra(self.pg0, pkts,
717 "RS sourced from link-local",
721 # Send the RS multicast
723 self.pg0.ip6_ra_config(send_unicast=1)
724 dmac = in6_getnsmac(inet_pton(AF_INET6, "ff02::2"))
725 ll = mk_ll_addr(self.pg0.remote_mac)
726 p = (Ether(dst=dmac, src=self.pg0.remote_mac) /
727 IPv6(dst="ff02::2", src=ll) /
730 self.send_and_expect_ra(self.pg0, pkts,
731 "RS sourced from link-local",
735 # Source from the unspecified address ::. This happens when the RS
736 # is sent before the host has a configured address/sub-net,
737 # i.e. auto-config. Since the sender has no IP address, the reply
738 # comes back mcast - so the capture needs to not filter this.
739 # If we happen to pick up the periodic RA at this point then so be it,
742 self.pg0.ip6_ra_config(send_unicast=1, suppress=1)
743 p = (Ether(dst=dmac, src=self.pg0.remote_mac) /
744 IPv6(dst="ff02::2", src="::") /
747 self.send_and_expect_ra(self.pg0, pkts,
748 "RS sourced from unspecified",
753 # Configure The RA to announce the links prefix
755 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
756 self.pg0.local_ip6_prefix_len))
759 # RAs should now contain the prefix information option
761 opt = ICMPv6NDOptPrefixInfo(
762 prefixlen=self.pg0.local_ip6_prefix_len,
763 prefix=self.pg0.local_ip6,
767 self.pg0.ip6_ra_config(send_unicast=1)
768 ll = mk_ll_addr(self.pg0.remote_mac)
769 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
770 IPv6(dst=self.pg0.local_ip6, src=ll) /
772 self.send_and_expect_ra(self.pg0, p,
773 "RA with prefix-info",
778 # Change the prefix info to not off-link
781 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
782 self.pg0.local_ip6_prefix_len),
785 opt = ICMPv6NDOptPrefixInfo(
786 prefixlen=self.pg0.local_ip6_prefix_len,
787 prefix=self.pg0.local_ip6,
791 self.pg0.ip6_ra_config(send_unicast=1)
792 self.send_and_expect_ra(self.pg0, p,
793 "RA with Prefix info with L-flag=0",
798 # Change the prefix info to not off-link, no-autoconfig
799 # L and A flag are clear in the advert
801 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
802 self.pg0.local_ip6_prefix_len),
806 opt = ICMPv6NDOptPrefixInfo(
807 prefixlen=self.pg0.local_ip6_prefix_len,
808 prefix=self.pg0.local_ip6,
812 self.pg0.ip6_ra_config(send_unicast=1)
813 self.send_and_expect_ra(self.pg0, p,
814 "RA with Prefix info with A & L-flag=0",
819 # Change the flag settings back to the defaults
820 # L and A flag are set in the advert
822 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
823 self.pg0.local_ip6_prefix_len))
825 opt = ICMPv6NDOptPrefixInfo(
826 prefixlen=self.pg0.local_ip6_prefix_len,
827 prefix=self.pg0.local_ip6,
831 self.pg0.ip6_ra_config(send_unicast=1)
832 self.send_and_expect_ra(self.pg0, p,
833 "RA with Prefix info",
838 # Change the prefix info to not off-link, no-autoconfig
839 # L and A flag are clear in the advert
841 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
842 self.pg0.local_ip6_prefix_len),
846 opt = ICMPv6NDOptPrefixInfo(
847 prefixlen=self.pg0.local_ip6_prefix_len,
848 prefix=self.pg0.local_ip6,
852 self.pg0.ip6_ra_config(send_unicast=1)
853 self.send_and_expect_ra(self.pg0, p,
854 "RA with Prefix info with A & L-flag=0",
859 # Use the reset to defaults option to revert to defaults
860 # L and A flag are clear in the advert
862 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
863 self.pg0.local_ip6_prefix_len),
866 opt = ICMPv6NDOptPrefixInfo(
867 prefixlen=self.pg0.local_ip6_prefix_len,
868 prefix=self.pg0.local_ip6,
872 self.pg0.ip6_ra_config(send_unicast=1)
873 self.send_and_expect_ra(self.pg0, p,
874 "RA with Prefix reverted to defaults",
879 # Advertise Another prefix. With no L-flag/A-flag
881 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg1.local_ip6,
882 self.pg1.local_ip6_prefix_len),
886 opt = [ICMPv6NDOptPrefixInfo(
887 prefixlen=self.pg0.local_ip6_prefix_len,
888 prefix=self.pg0.local_ip6,
891 ICMPv6NDOptPrefixInfo(
892 prefixlen=self.pg1.local_ip6_prefix_len,
893 prefix=self.pg1.local_ip6,
897 self.pg0.ip6_ra_config(send_unicast=1)
898 ll = mk_ll_addr(self.pg0.remote_mac)
899 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
900 IPv6(dst=self.pg0.local_ip6, src=ll) /
902 self.send_and_expect_ra(self.pg0, p,
903 "RA with multiple Prefix infos",
908 # Remove the first prefix-info - expect the second is still in the
911 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
912 self.pg0.local_ip6_prefix_len),
915 opt = ICMPv6NDOptPrefixInfo(
916 prefixlen=self.pg1.local_ip6_prefix_len,
917 prefix=self.pg1.local_ip6,
921 self.pg0.ip6_ra_config(send_unicast=1)
922 self.send_and_expect_ra(self.pg0, p,
923 "RA with Prefix reverted to defaults",
928 # Remove the second prefix-info - expect no prefix-info in the adverts
930 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg1.local_ip6,
931 self.pg1.local_ip6_prefix_len),
935 # change the link's link local, so we know that works too.
937 self.vapi.sw_interface_ip6_set_link_local_address(
938 sw_if_index=self.pg0.sw_if_index,
941 self.pg0.ip6_ra_config(send_unicast=1)
942 self.send_and_expect_ra(self.pg0, p,
943 "RA with Prefix reverted to defaults",
948 # Reset the periodic advertisements back to default values
950 self.pg0.ip6_ra_config(no=1, suppress=1, send_unicast=0)
955 # test one MLD is sent after applying an IPv6 Address on an interface
957 self.pg_enable_capture(self.pg_interfaces)
960 subitf = VppDot1QSubint(self, self.pg1, 99)
965 rxs = self.pg1._get_capture(timeout=4, filter_out_fn=None)
968 # hunt for the MLD on vlan 99
971 # make sure ipv6 packets with hop by hop options have
973 self.assert_packet_checksums_valid(rx)
974 if rx.haslayer(IPv6ExtHdrHopByHop) and \
975 rx.haslayer(Dot1Q) and \
976 rx[Dot1Q].vlan == 99:
977 mld = rx[ICMPv6MLReport2]
979 self.assertEqual(mld.records_number, 4)
982 class TestIPv6RouteLookup(VppTestCase):
983 """ IPv6 Route Lookup Test Case """
986 def route_lookup(self, prefix, exact):
987 return self.vapi.api(self.vapi.papi.ip_route_lookup,
996 super(TestIPv6RouteLookup, cls).setUpClass()
999 def tearDownClass(cls):
1000 super(TestIPv6RouteLookup, cls).tearDownClass()
1003 super(TestIPv6RouteLookup, self).setUp()
1005 drop_nh = VppRoutePath("::1", 0xffffffff,
1006 type=FibPathType.FIB_PATH_TYPE_DROP)
1009 r = VppIpRoute(self, "2001:1111::", 32, [drop_nh])
1011 self.routes.append(r)
1013 r = VppIpRoute(self, "2001:1111:2222::", 48, [drop_nh])
1015 self.routes.append(r)
1017 r = VppIpRoute(self, "2001:1111:2222::1", 128, [drop_nh])
1019 self.routes.append(r)
1022 # Remove the routes we added
1023 for r in self.routes:
1024 r.remove_vpp_config()
1026 super(TestIPv6RouteLookup, self).tearDown()
1028 def test_exact_match(self):
1029 # Verify we find the host route
1030 prefix = "2001:1111:2222::1/128"
1031 result = self.route_lookup(prefix, True)
1032 assert (prefix == str(result.route.prefix))
1034 # Verify we find a middle prefix route
1035 prefix = "2001:1111:2222::/48"
1036 result = self.route_lookup(prefix, True)
1037 assert (prefix == str(result.route.prefix))
1039 # Verify we do not find an available LPM.
1040 with self.vapi.assert_negative_api_retval():
1041 self.route_lookup("2001::2/128", True)
1043 def test_longest_prefix_match(self):
1044 # verify we find lpm
1045 lpm_prefix = "2001:1111:2222::/48"
1046 result = self.route_lookup("2001:1111:2222::2/128", False)
1047 assert (lpm_prefix == str(result.route.prefix))
1049 # Verify we find the exact when not requested
1050 result = self.route_lookup(lpm_prefix, False)
1051 assert (lpm_prefix == str(result.route.prefix))
1053 # Can't seem to delete the default route so no negative LPM test.
1056 class TestIPv6IfAddrRoute(VppTestCase):
1057 """ IPv6 Interface Addr Route Test Case """
1060 def setUpClass(cls):
1061 super(TestIPv6IfAddrRoute, cls).setUpClass()
1064 def tearDownClass(cls):
1065 super(TestIPv6IfAddrRoute, cls).tearDownClass()
1068 super(TestIPv6IfAddrRoute, self).setUp()
1070 # create 1 pg interface
1071 self.create_pg_interfaces(range(1))
1073 for i in self.pg_interfaces:
1079 super(TestIPv6IfAddrRoute, self).tearDown()
1080 for i in self.pg_interfaces:
1084 def test_ipv6_ifaddrs_same_prefix(self):
1085 """ IPv6 Interface Addresses Same Prefix test
1089 - Verify no route in FIB for prefix 2001:10::/64
1090 - Configure IPv4 address 2001:10::10/64 on an interface
1091 - Verify route in FIB for prefix 2001:10::/64
1092 - Configure IPv4 address 2001:10::20/64 on an interface
1093 - Delete 2001:10::10/64 from interface
1094 - Verify route in FIB for prefix 2001:10::/64
1095 - Delete 2001:10::20/64 from interface
1096 - Verify no route in FIB for prefix 2001:10::/64
1099 addr1 = "2001:10::10"
1100 addr2 = "2001:10::20"
1102 if_addr1 = VppIpInterfaceAddress(self, self.pg0, addr1, 64)
1103 if_addr2 = VppIpInterfaceAddress(self, self.pg0, addr2, 64)
1104 self.assertFalse(if_addr1.query_vpp_config())
1105 self.assertFalse(find_route(self, addr1, 128))
1106 self.assertFalse(find_route(self, addr2, 128))
1108 # configure first address, verify route present
1109 if_addr1.add_vpp_config()
1110 self.assertTrue(if_addr1.query_vpp_config())
1111 self.assertTrue(find_route(self, addr1, 128))
1112 self.assertFalse(find_route(self, addr2, 128))
1114 # configure second address, delete first, verify route not removed
1115 if_addr2.add_vpp_config()
1116 if_addr1.remove_vpp_config()
1117 self.assertFalse(if_addr1.query_vpp_config())
1118 self.assertTrue(if_addr2.query_vpp_config())
1119 self.assertFalse(find_route(self, addr1, 128))
1120 self.assertTrue(find_route(self, addr2, 128))
1122 # delete second address, verify route removed
1123 if_addr2.remove_vpp_config()
1124 self.assertFalse(if_addr1.query_vpp_config())
1125 self.assertFalse(find_route(self, addr1, 128))
1126 self.assertFalse(find_route(self, addr2, 128))
1128 def test_ipv6_ifaddr_del(self):
1129 """ Delete an interface address that does not exist """
1131 loopbacks = self.create_loopback_interfaces(1)
1132 lo = self.lo_interfaces[0]
1138 # try and remove pg0's subnet from lo
1140 with self.vapi.assert_negative_api_retval():
1141 self.vapi.sw_interface_add_del_address(
1142 sw_if_index=lo.sw_if_index,
1143 prefix=self.pg0.local_ip6_prefix,
1147 class TestICMPv6Echo(VppTestCase):
1148 """ ICMPv6 Echo Test Case """
1151 def setUpClass(cls):
1152 super(TestICMPv6Echo, cls).setUpClass()
1155 def tearDownClass(cls):
1156 super(TestICMPv6Echo, cls).tearDownClass()
1159 super(TestICMPv6Echo, self).setUp()
1161 # create 1 pg interface
1162 self.create_pg_interfaces(range(1))
1164 for i in self.pg_interfaces:
1170 super(TestICMPv6Echo, self).tearDown()
1171 for i in self.pg_interfaces:
1175 def test_icmpv6_echo(self):
1176 """ VPP replies to ICMPv6 Echo Request
1180 - Receive ICMPv6 Echo Request message on pg0 interface.
1181 - Check outgoing ICMPv6 Echo Reply message on pg0 interface.
1186 icmpv6_data = b'\x0a' * 18
1187 p_echo_request = (Ether(src=self.pg0.remote_mac,
1188 dst=self.pg0.local_mac) /
1189 IPv6(src=self.pg0.remote_ip6,
1190 dst=self.pg0.local_ip6) /
1196 self.pg0.add_stream(p_echo_request)
1197 self.pg_enable_capture(self.pg_interfaces)
1200 rx = self.pg0.get_capture(1)
1204 icmpv6 = rx[ICMPv6EchoReply]
1206 self.assertEqual(ether.src, self.pg0.local_mac)
1207 self.assertEqual(ether.dst, self.pg0.remote_mac)
1209 self.assertEqual(ipv6.src, self.pg0.local_ip6)
1210 self.assertEqual(ipv6.dst, self.pg0.remote_ip6)
1213 icmp6types[icmpv6.type], "Echo Reply")
1214 self.assertEqual(icmpv6.id, icmpv6_id)
1215 self.assertEqual(icmpv6.seq, icmpv6_seq)
1216 self.assertEqual(icmpv6.data, icmpv6_data)
1219 class TestIPv6RD(TestIPv6ND):
1220 """ IPv6 Router Discovery Test Case """
1223 def setUpClass(cls):
1224 super(TestIPv6RD, cls).setUpClass()
1227 def tearDownClass(cls):
1228 super(TestIPv6RD, cls).tearDownClass()
1231 super(TestIPv6RD, self).setUp()
1233 # create 2 pg interfaces
1234 self.create_pg_interfaces(range(2))
1236 self.interfaces = list(self.pg_interfaces)
1238 # setup all interfaces
1239 for i in self.interfaces:
1244 for i in self.interfaces:
1247 super(TestIPv6RD, self).tearDown()
1249 def test_rd_send_router_solicitation(self):
1250 """ Verify router solicitation packets """
1253 self.pg_enable_capture(self.pg_interfaces)
1255 self.vapi.ip6nd_send_router_solicitation(self.pg1.sw_if_index,
1257 rx_list = self.pg1.get_capture(count, timeout=3)
1258 self.assertEqual(len(rx_list), count)
1259 for packet in rx_list:
1260 self.assertEqual(packet.haslayer(IPv6), 1)
1261 self.assertEqual(packet[IPv6].haslayer(
1263 dst = ip6_normalize(packet[IPv6].dst)
1264 dst2 = ip6_normalize("ff02::2")
1265 self.assert_equal(dst, dst2)
1266 src = ip6_normalize(packet[IPv6].src)
1267 src2 = ip6_normalize(self.pg1.local_ip6_ll)
1268 self.assert_equal(src, src2)
1270 bool(packet[ICMPv6ND_RS].haslayer(
1271 ICMPv6NDOptSrcLLAddr)))
1273 packet[ICMPv6NDOptSrcLLAddr].lladdr,
1276 def verify_prefix_info(self, reported_prefix, prefix_option):
1277 prefix = IPv6Network(
1278 text_type(prefix_option.getfieldval("prefix") +
1280 text_type(prefix_option.getfieldval("prefixlen"))),
1282 self.assert_equal(reported_prefix.prefix.network_address,
1283 prefix.network_address)
1284 L = prefix_option.getfieldval("L")
1285 A = prefix_option.getfieldval("A")
1286 option_flags = (L << 7) | (A << 6)
1287 self.assert_equal(reported_prefix.flags, option_flags)
1288 self.assert_equal(reported_prefix.valid_time,
1289 prefix_option.getfieldval("validlifetime"))
1290 self.assert_equal(reported_prefix.preferred_time,
1291 prefix_option.getfieldval("preferredlifetime"))
1293 def test_rd_receive_router_advertisement(self):
1294 """ Verify events triggered by received RA packets """
1296 self.vapi.want_ip6_ra_events(enable=1)
1298 prefix_info_1 = ICMPv6NDOptPrefixInfo(
1302 preferredlifetime=500,
1307 prefix_info_2 = ICMPv6NDOptPrefixInfo(
1311 preferredlifetime=1000,
1316 p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
1317 IPv6(dst=self.pg1.local_ip6_ll,
1318 src=mk_ll_addr(self.pg1.remote_mac)) /
1322 self.pg1.add_stream([p])
1325 ev = self.vapi.wait_for_event(10, "ip6_ra_event")
1327 self.assert_equal(ev.current_hop_limit, 0)
1328 self.assert_equal(ev.flags, 8)
1329 self.assert_equal(ev.router_lifetime_in_sec, 1800)
1330 self.assert_equal(ev.neighbor_reachable_time_in_msec, 0)
1332 ev.time_in_msec_between_retransmitted_neighbor_solicitations, 0)
1334 self.assert_equal(ev.n_prefixes, 2)
1336 self.verify_prefix_info(ev.prefixes[0], prefix_info_1)
1337 self.verify_prefix_info(ev.prefixes[1], prefix_info_2)
1340 class TestIPv6RDControlPlane(TestIPv6ND):
1341 """ IPv6 Router Discovery Control Plane Test Case """
1344 def setUpClass(cls):
1345 super(TestIPv6RDControlPlane, cls).setUpClass()
1348 def tearDownClass(cls):
1349 super(TestIPv6RDControlPlane, cls).tearDownClass()
1352 super(TestIPv6RDControlPlane, self).setUp()
1354 # create 1 pg interface
1355 self.create_pg_interfaces(range(1))
1357 self.interfaces = list(self.pg_interfaces)
1359 # setup all interfaces
1360 for i in self.interfaces:
1365 super(TestIPv6RDControlPlane, self).tearDown()
1368 def create_ra_packet(pg, routerlifetime=None):
1369 src_ip = pg.remote_ip6_ll
1370 dst_ip = pg.local_ip6
1371 if routerlifetime is not None:
1372 ra = ICMPv6ND_RA(routerlifetime=routerlifetime)
1375 p = (Ether(dst=pg.local_mac, src=pg.remote_mac) /
1376 IPv6(dst=dst_ip, src=src_ip) / ra)
1380 def get_default_routes(fib):
1383 if entry.route.prefix.prefixlen == 0:
1384 for path in entry.route.paths:
1385 if path.sw_if_index != 0xFFFFFFFF:
1387 defaut_route['sw_if_index'] = path.sw_if_index
1388 defaut_route['next_hop'] = path.nh.address.ip6
1389 list.append(defaut_route)
1393 def get_interface_addresses(fib, pg):
1396 if entry.route.prefix.prefixlen == 128:
1397 path = entry.route.paths[0]
1398 if path.sw_if_index == pg.sw_if_index:
1399 list.append(str(entry.route.prefix.network_address))
1402 def wait_for_no_default_route(self, n_tries=50, s_time=1):
1404 fib = self.vapi.ip_route_dump(0, True)
1405 default_routes = self.get_default_routes(fib)
1406 if 0 == len(default_routes):
1408 n_tries = n_tries - 1
1414 """ Test handling of SLAAC addresses and default routes """
1416 fib = self.vapi.ip_route_dump(0, True)
1417 default_routes = self.get_default_routes(fib)
1418 initial_addresses = set(self.get_interface_addresses(fib, self.pg0))
1419 self.assertEqual(default_routes, [])
1420 router_address = IPv6Address(text_type(self.pg0.remote_ip6_ll))
1422 self.vapi.ip6_nd_address_autoconfig(self.pg0.sw_if_index, 1, 1)
1427 packet = (self.create_ra_packet(
1428 self.pg0) / ICMPv6NDOptPrefixInfo(
1432 preferredlifetime=2,
1435 ) / ICMPv6NDOptPrefixInfo(
1439 preferredlifetime=1000,
1443 self.pg0.add_stream([packet])
1446 self.sleep_on_vpp_time(0.1)
1448 fib = self.vapi.ip_route_dump(0, True)
1450 # check FIB for new address
1451 addresses = set(self.get_interface_addresses(fib, self.pg0))
1452 new_addresses = addresses.difference(initial_addresses)
1453 self.assertEqual(len(new_addresses), 1)
1454 prefix = IPv6Network(text_type("%s/%d" % (list(new_addresses)[0], 20)),
1456 self.assertEqual(prefix, IPv6Network(text_type('1::/20')))
1458 # check FIB for new default route
1459 default_routes = self.get_default_routes(fib)
1460 self.assertEqual(len(default_routes), 1)
1461 dr = default_routes[0]
1462 self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
1463 self.assertEqual(dr['next_hop'], router_address)
1465 # send RA to delete default route
1466 packet = self.create_ra_packet(self.pg0, routerlifetime=0)
1467 self.pg0.add_stream([packet])
1470 self.sleep_on_vpp_time(0.1)
1472 # check that default route is deleted
1473 fib = self.vapi.ip_route_dump(0, True)
1474 default_routes = self.get_default_routes(fib)
1475 self.assertEqual(len(default_routes), 0)
1477 self.sleep_on_vpp_time(0.1)
1480 packet = self.create_ra_packet(self.pg0)
1481 self.pg0.add_stream([packet])
1484 self.sleep_on_vpp_time(0.1)
1486 # check FIB for new default route
1487 fib = self.vapi.ip_route_dump(0, True)
1488 default_routes = self.get_default_routes(fib)
1489 self.assertEqual(len(default_routes), 1)
1490 dr = default_routes[0]
1491 self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
1492 self.assertEqual(dr['next_hop'], router_address)
1494 # send RA, updating router lifetime to 1s
1495 packet = self.create_ra_packet(self.pg0, 1)
1496 self.pg0.add_stream([packet])
1499 self.sleep_on_vpp_time(0.1)
1501 # check that default route still exists
1502 fib = self.vapi.ip_route_dump(0, True)
1503 default_routes = self.get_default_routes(fib)
1504 self.assertEqual(len(default_routes), 1)
1505 dr = default_routes[0]
1506 self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
1507 self.assertEqual(dr['next_hop'], router_address)
1509 self.sleep_on_vpp_time(1)
1511 # check that default route is deleted
1512 self.assertTrue(self.wait_for_no_default_route())
1514 # check FIB still contains the SLAAC address
1515 addresses = set(self.get_interface_addresses(fib, self.pg0))
1516 new_addresses = addresses.difference(initial_addresses)
1518 self.assertEqual(len(new_addresses), 1)
1519 prefix = IPv6Network(text_type("%s/%d" % (list(new_addresses)[0], 20)),
1521 self.assertEqual(prefix, IPv6Network(text_type('1::/20')))
1523 self.sleep_on_vpp_time(1)
1525 # check that SLAAC address is deleted
1526 fib = self.vapi.ip_route_dump(0, True)
1527 addresses = set(self.get_interface_addresses(fib, self.pg0))
1528 new_addresses = addresses.difference(initial_addresses)
1529 self.assertEqual(len(new_addresses), 0)
1532 class IPv6NDProxyTest(TestIPv6ND):
1533 """ IPv6 ND ProxyTest Case """
1536 def setUpClass(cls):
1537 super(IPv6NDProxyTest, cls).setUpClass()
1540 def tearDownClass(cls):
1541 super(IPv6NDProxyTest, cls).tearDownClass()
1544 super(IPv6NDProxyTest, self).setUp()
1546 # create 3 pg interfaces
1547 self.create_pg_interfaces(range(3))
1549 # pg0 is the master interface, with the configured subnet
1551 self.pg0.config_ip6()
1552 self.pg0.resolve_ndp()
1554 self.pg1.ip6_enable()
1555 self.pg2.ip6_enable()
1558 super(IPv6NDProxyTest, self).tearDown()
1560 def test_nd_proxy(self):
1561 """ IPv6 Proxy ND """
1564 # Generate some hosts in the subnet that we are proxying
1566 self.pg0.generate_remote_hosts(8)
1568 nsma = in6_getnsma(inet_pton(AF_INET6, self.pg0.local_ip6))
1569 d = inet_ntop(AF_INET6, nsma)
1572 # Send an NS for one of those remote hosts on one of the proxy links
1573 # expect no response since it's from an address that is not
1574 # on the link that has the prefix configured
1576 ns_pg1 = (Ether(dst=in6_getnsmac(nsma), src=self.pg1.remote_mac) /
1578 src=self.pg0._remote_hosts[2].ip6) /
1579 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
1580 ICMPv6NDOptSrcLLAddr(
1581 lladdr=self.pg0._remote_hosts[2].mac))
1583 self.send_and_assert_no_replies(self.pg1, ns_pg1, "Off link NS")
1586 # Add proxy support for the host
1588 self.vapi.ip6nd_proxy_add_del(
1589 is_add=1, ip=inet_pton(AF_INET6, self.pg0._remote_hosts[2].ip6),
1590 sw_if_index=self.pg1.sw_if_index)
1593 # try that NS again. this time we expect an NA back
1595 self.send_and_expect_na(self.pg1, ns_pg1,
1596 "NS to proxy entry",
1597 dst_ip=self.pg0._remote_hosts[2].ip6,
1598 tgt_ip=self.pg0.local_ip6)
1601 # ... and that we have an entry in the ND cache
1603 self.assertTrue(find_nbr(self,
1604 self.pg1.sw_if_index,
1605 self.pg0._remote_hosts[2].ip6))
1608 # ... and we can route traffic to it
1610 t = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
1611 IPv6(dst=self.pg0._remote_hosts[2].ip6,
1612 src=self.pg0.remote_ip6) /
1613 inet6.UDP(sport=10000, dport=20000) /
1616 self.pg0.add_stream(t)
1617 self.pg_enable_capture(self.pg_interfaces)
1619 rx = self.pg1.get_capture(1)
1622 self.assertEqual(rx[Ether].dst, self.pg0._remote_hosts[2].mac)
1623 self.assertEqual(rx[Ether].src, self.pg1.local_mac)
1625 self.assertEqual(rx[IPv6].src,
1627 self.assertEqual(rx[IPv6].dst,
1631 # Test we proxy for the host on the main interface
1633 ns_pg0 = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
1634 IPv6(dst=d, src=self.pg0.remote_ip6) /
1636 tgt=self.pg0._remote_hosts[2].ip6) /
1637 ICMPv6NDOptSrcLLAddr(
1638 lladdr=self.pg0.remote_mac))
1640 self.send_and_expect_na(self.pg0, ns_pg0,
1641 "NS to proxy entry on main",
1642 tgt_ip=self.pg0._remote_hosts[2].ip6,
1643 dst_ip=self.pg0.remote_ip6)
1646 # Setup and resolve proxy for another host on another interface
1648 ns_pg2 = (Ether(dst=in6_getnsmac(nsma), src=self.pg2.remote_mac) /
1650 src=self.pg0._remote_hosts[3].ip6) /
1651 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
1652 ICMPv6NDOptSrcLLAddr(
1653 lladdr=self.pg0._remote_hosts[2].mac))
1655 self.vapi.ip6nd_proxy_add_del(
1656 is_add=1, ip=inet_pton(AF_INET6, self.pg0._remote_hosts[3].ip6),
1657 sw_if_index=self.pg2.sw_if_index)
1659 self.send_and_expect_na(self.pg2, ns_pg2,
1660 "NS to proxy entry other interface",
1661 dst_ip=self.pg0._remote_hosts[3].ip6,
1662 tgt_ip=self.pg0.local_ip6)
1664 self.assertTrue(find_nbr(self,
1665 self.pg2.sw_if_index,
1666 self.pg0._remote_hosts[3].ip6))
1669 # hosts can communicate. pg2->pg1
1671 t2 = (Ether(dst=self.pg2.local_mac,
1672 src=self.pg0.remote_hosts[3].mac) /
1673 IPv6(dst=self.pg0._remote_hosts[2].ip6,
1674 src=self.pg0._remote_hosts[3].ip6) /
1675 inet6.UDP(sport=10000, dport=20000) /
1678 self.pg2.add_stream(t2)
1679 self.pg_enable_capture(self.pg_interfaces)
1681 rx = self.pg1.get_capture(1)
1684 self.assertEqual(rx[Ether].dst, self.pg0._remote_hosts[2].mac)
1685 self.assertEqual(rx[Ether].src, self.pg1.local_mac)
1687 self.assertEqual(rx[IPv6].src,
1689 self.assertEqual(rx[IPv6].dst,
1693 # remove the proxy configs
1695 self.vapi.ip6nd_proxy_add_del(
1696 ip=inet_pton(AF_INET6, self.pg0._remote_hosts[2].ip6),
1697 sw_if_index=self.pg1.sw_if_index, is_add=0)
1698 self.vapi.ip6nd_proxy_add_del(
1699 ip=inet_pton(AF_INET6, self.pg0._remote_hosts[3].ip6),
1700 sw_if_index=self.pg2.sw_if_index, is_add=0)
1702 self.assertFalse(find_nbr(self,
1703 self.pg2.sw_if_index,
1704 self.pg0._remote_hosts[3].ip6))
1705 self.assertFalse(find_nbr(self,
1706 self.pg1.sw_if_index,
1707 self.pg0._remote_hosts[2].ip6))
1710 # no longer proxy-ing...
1712 self.send_and_assert_no_replies(self.pg0, ns_pg0, "Proxy unconfigured")
1713 self.send_and_assert_no_replies(self.pg1, ns_pg1, "Proxy unconfigured")
1714 self.send_and_assert_no_replies(self.pg2, ns_pg2, "Proxy unconfigured")
1717 # no longer forwarding. traffic generates NS out of the glean/main
1720 self.pg2.add_stream(t2)
1721 self.pg_enable_capture(self.pg_interfaces)
1724 rx = self.pg0.get_capture(1)
1726 self.assertTrue(rx[0].haslayer(ICMPv6ND_NS))
1729 class TestIPNull(VppTestCase):
1730 """ IPv6 routes via NULL """
1733 def setUpClass(cls):
1734 super(TestIPNull, cls).setUpClass()
1737 def tearDownClass(cls):
1738 super(TestIPNull, cls).tearDownClass()
1741 super(TestIPNull, self).setUp()
1743 # create 2 pg interfaces
1744 self.create_pg_interfaces(range(1))
1746 for i in self.pg_interfaces:
1752 super(TestIPNull, self).tearDown()
1753 for i in self.pg_interfaces:
1757 def test_ip_null(self):
1758 """ IP NULL route """
1760 p = (Ether(src=self.pg0.remote_mac,
1761 dst=self.pg0.local_mac) /
1762 IPv6(src=self.pg0.remote_ip6, dst="2001::1") /
1763 inet6.UDP(sport=1234, dport=1234) /
1767 # A route via IP NULL that will reply with ICMP unreachables
1769 ip_unreach = VppIpRoute(
1771 [VppRoutePath("::", 0xffffffff,
1772 type=FibPathType.FIB_PATH_TYPE_ICMP_UNREACH)])
1773 ip_unreach.add_vpp_config()
1775 self.pg0.add_stream(p)
1776 self.pg_enable_capture(self.pg_interfaces)
1779 rx = self.pg0.get_capture(1)
1781 icmp = rx[ICMPv6DestUnreach]
1783 # 0 = "No route to destination"
1784 self.assertEqual(icmp.code, 0)
1786 # ICMP is rate limited. pause a bit
1790 # A route via IP NULL that will reply with ICMP prohibited
1792 ip_prohibit = VppIpRoute(
1793 self, "2001::1", 128,
1794 [VppRoutePath("::", 0xffffffff,
1795 type=FibPathType.FIB_PATH_TYPE_ICMP_PROHIBIT)])
1796 ip_prohibit.add_vpp_config()
1798 self.pg0.add_stream(p)
1799 self.pg_enable_capture(self.pg_interfaces)
1802 rx = self.pg0.get_capture(1)
1804 icmp = rx[ICMPv6DestUnreach]
1806 # 1 = "Communication with destination administratively prohibited"
1807 self.assertEqual(icmp.code, 1)
1810 class TestIPDisabled(VppTestCase):
1811 """ IPv6 disabled """
1814 def setUpClass(cls):
1815 super(TestIPDisabled, cls).setUpClass()
1818 def tearDownClass(cls):
1819 super(TestIPDisabled, cls).tearDownClass()
1822 super(TestIPDisabled, self).setUp()
1824 # create 2 pg interfaces
1825 self.create_pg_interfaces(range(2))
1829 self.pg0.config_ip6()
1830 self.pg0.resolve_ndp()
1832 # PG 1 is not IP enabled
1836 super(TestIPDisabled, self).tearDown()
1837 for i in self.pg_interfaces:
1841 def test_ip_disabled(self):
1846 # one accepting interface, pg0, 2 forwarding interfaces
1848 route_ff_01 = VppIpMRoute(
1852 MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
1853 [VppMRoutePath(self.pg1.sw_if_index,
1854 MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
1855 VppMRoutePath(self.pg0.sw_if_index,
1856 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
1857 route_ff_01.add_vpp_config()
1859 pu = (Ether(src=self.pg1.remote_mac,
1860 dst=self.pg1.local_mac) /
1861 IPv6(src="2001::1", dst=self.pg0.remote_ip6) /
1862 inet6.UDP(sport=1234, dport=1234) /
1864 pm = (Ether(src=self.pg1.remote_mac,
1865 dst=self.pg1.local_mac) /
1866 IPv6(src="2001::1", dst="ffef::1") /
1867 inet6.UDP(sport=1234, dport=1234) /
1871 # PG1 does not forward IP traffic
1873 self.send_and_assert_no_replies(self.pg1, pu, "IPv6 disabled")
1874 self.send_and_assert_no_replies(self.pg1, pm, "IPv6 disabled")
1879 self.pg1.config_ip6()
1882 # Now we get packets through
1884 self.pg1.add_stream(pu)
1885 self.pg_enable_capture(self.pg_interfaces)
1887 rx = self.pg0.get_capture(1)
1889 self.pg1.add_stream(pm)
1890 self.pg_enable_capture(self.pg_interfaces)
1892 rx = self.pg0.get_capture(1)
1897 self.pg1.unconfig_ip6()
1900 # PG1 does not forward IP traffic
1902 self.send_and_assert_no_replies(self.pg1, pu, "IPv6 disabled")
1903 self.send_and_assert_no_replies(self.pg1, pm, "IPv6 disabled")
1906 class TestIP6LoadBalance(VppTestCase):
1907 """ IPv6 Load-Balancing """
1910 def setUpClass(cls):
1911 super(TestIP6LoadBalance, cls).setUpClass()
1914 def tearDownClass(cls):
1915 super(TestIP6LoadBalance, cls).tearDownClass()
1918 super(TestIP6LoadBalance, self).setUp()
1920 self.create_pg_interfaces(range(5))
1922 mpls_tbl = VppMplsTable(self, 0)
1923 mpls_tbl.add_vpp_config()
1925 for i in self.pg_interfaces:
1932 for i in self.pg_interfaces:
1936 super(TestIP6LoadBalance, self).tearDown()
1938 def pg_send(self, input, pkts):
1939 self.vapi.cli("clear trace")
1940 input.add_stream(pkts)
1941 self.pg_enable_capture(self.pg_interfaces)
1944 def send_and_expect_load_balancing(self, input, pkts, outputs):
1945 self.pg_send(input, pkts)
1947 rx = oo._get_capture(1)
1948 self.assertNotEqual(0, len(rx))
1950 def send_and_expect_one_itf(self, input, pkts, itf):
1951 self.pg_send(input, pkts)
1952 rx = itf.get_capture(len(pkts))
1954 def test_ip6_load_balance(self):
1955 """ IPv6 Load-Balancing """
1958 # An array of packets that differ only in the destination port
1962 # - MPLS non-EOS with an entropy label
1966 port_mpls_neos_pkts = []
1970 # An array of packets that differ only in the source address
1975 for ii in range(NUM_PKTS):
1977 IPv6(dst="3000::1", src="3000:1::1") /
1978 inet6.UDP(sport=1234, dport=1234 + ii) /
1980 port_ip_pkts.append((Ether(src=self.pg0.remote_mac,
1981 dst=self.pg0.local_mac) /
1983 port_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
1984 dst=self.pg0.local_mac) /
1985 MPLS(label=66, ttl=2) /
1987 port_mpls_neos_pkts.append((Ether(src=self.pg0.remote_mac,
1988 dst=self.pg0.local_mac) /
1989 MPLS(label=67, ttl=2) /
1990 MPLS(label=77, ttl=2) /
1992 port_ent_pkts.append((Ether(src=self.pg0.remote_mac,
1993 dst=self.pg0.local_mac) /
1994 MPLS(label=67, ttl=2) /
1995 MPLS(label=14, ttl=2) /
1996 MPLS(label=999, ttl=2) /
1999 IPv6(dst="3000::1", src="3000:1::%d" % ii) /
2000 inet6.UDP(sport=1234, dport=1234) /
2002 src_ip_pkts.append((Ether(src=self.pg0.remote_mac,
2003 dst=self.pg0.local_mac) /
2005 src_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
2006 dst=self.pg0.local_mac) /
2007 MPLS(label=66, ttl=2) /
2011 # A route for the IP packets
2013 route_3000_1 = VppIpRoute(self, "3000::1", 128,
2014 [VppRoutePath(self.pg1.remote_ip6,
2015 self.pg1.sw_if_index),
2016 VppRoutePath(self.pg2.remote_ip6,
2017 self.pg2.sw_if_index)])
2018 route_3000_1.add_vpp_config()
2021 # a local-label for the EOS packets
2023 binding = VppMplsIpBind(self, 66, "3000::1", 128, is_ip6=1)
2024 binding.add_vpp_config()
2027 # An MPLS route for the non-EOS packets
2029 route_67 = VppMplsRoute(self, 67, 0,
2030 [VppRoutePath(self.pg1.remote_ip6,
2031 self.pg1.sw_if_index,
2033 VppRoutePath(self.pg2.remote_ip6,
2034 self.pg2.sw_if_index,
2036 route_67.add_vpp_config()
2039 # inject the packet on pg0 - expect load-balancing across the 2 paths
2040 # - since the default hash config is to use IP src,dst and port
2042 # We are not going to ensure equal amounts of packets across each link,
2043 # since the hash algorithm is statistical and therefore this can never
2044 # be guaranteed. But with 64 different packets we do expect some
2045 # balancing. So instead just ensure there is traffic on each link.
2047 self.send_and_expect_load_balancing(self.pg0, port_ip_pkts,
2048 [self.pg1, self.pg2])
2049 self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
2050 [self.pg1, self.pg2])
2051 self.send_and_expect_load_balancing(self.pg0, port_mpls_pkts,
2052 [self.pg1, self.pg2])
2053 self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
2054 [self.pg1, self.pg2])
2055 self.send_and_expect_load_balancing(self.pg0, port_mpls_neos_pkts,
2056 [self.pg1, self.pg2])
2059 # The packets with Entropy label in should not load-balance,
2060 # since the Entropy value is fixed.
2062 self.send_and_expect_one_itf(self.pg0, port_ent_pkts, self.pg1)
2065 # change the flow hash config so it's only IP src,dst
2066 # - now only the stream with differing source address will
2069 self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, sport=0, dport=0,
2072 self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
2073 [self.pg1, self.pg2])
2074 self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
2075 [self.pg1, self.pg2])
2076 self.send_and_expect_one_itf(self.pg0, port_ip_pkts, self.pg2)
2079 # change the flow hash config back to defaults
2081 self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, sport=1, dport=1,
2085 # Recursive prefixes
2086 # - testing that 2 stages of load-balancing occurs and there is no
2087 # polarisation (i.e. only 2 of 4 paths are used)
2092 for ii in range(257):
2093 port_pkts.append((Ether(src=self.pg0.remote_mac,
2094 dst=self.pg0.local_mac) /
2097 inet6.UDP(sport=1234,
2099 Raw(b'\xa5' * 100)))
2100 src_pkts.append((Ether(src=self.pg0.remote_mac,
2101 dst=self.pg0.local_mac) /
2103 src="4000:1::%d" % ii) /
2104 inet6.UDP(sport=1234, dport=1234) /
2105 Raw(b'\xa5' * 100)))
2107 route_3000_2 = VppIpRoute(self, "3000::2", 128,
2108 [VppRoutePath(self.pg3.remote_ip6,
2109 self.pg3.sw_if_index),
2110 VppRoutePath(self.pg4.remote_ip6,
2111 self.pg4.sw_if_index)])
2112 route_3000_2.add_vpp_config()
2114 route_4000_1 = VppIpRoute(self, "4000::1", 128,
2115 [VppRoutePath("3000::1",
2117 VppRoutePath("3000::2",
2119 route_4000_1.add_vpp_config()
2122 # inject the packet on pg0 - expect load-balancing across all 4 paths
2124 self.vapi.cli("clear trace")
2125 self.send_and_expect_load_balancing(self.pg0, port_pkts,
2126 [self.pg1, self.pg2,
2127 self.pg3, self.pg4])
2128 self.send_and_expect_load_balancing(self.pg0, src_pkts,
2129 [self.pg1, self.pg2,
2130 self.pg3, self.pg4])
2133 # Recursive prefixes
2134 # - testing that 2 stages of load-balancing no choices
2138 for ii in range(257):
2139 port_pkts.append((Ether(src=self.pg0.remote_mac,
2140 dst=self.pg0.local_mac) /
2143 inet6.UDP(sport=1234,
2145 Raw(b'\xa5' * 100)))
2147 route_5000_2 = VppIpRoute(self, "5000::2", 128,
2148 [VppRoutePath(self.pg3.remote_ip6,
2149 self.pg3.sw_if_index)])
2150 route_5000_2.add_vpp_config()
2152 route_6000_1 = VppIpRoute(self, "6000::1", 128,
2153 [VppRoutePath("5000::2",
2155 route_6000_1.add_vpp_config()
2158 # inject the packet on pg0 - expect load-balancing across all 4 paths
2160 self.vapi.cli("clear trace")
2161 self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg3)
2164 class TestIP6Punt(VppTestCase):
2165 """ IPv6 Punt Police/Redirect """
2168 def setUpClass(cls):
2169 super(TestIP6Punt, cls).setUpClass()
2172 def tearDownClass(cls):
2173 super(TestIP6Punt, cls).tearDownClass()
2176 super(TestIP6Punt, self).setUp()
2178 self.create_pg_interfaces(range(4))
2180 for i in self.pg_interfaces:
2186 super(TestIP6Punt, self).tearDown()
2187 for i in self.pg_interfaces:
2191 def test_ip_punt(self):
2192 """ IP6 punt police and redirect """
2194 p = (Ether(src=self.pg0.remote_mac,
2195 dst=self.pg0.local_mac) /
2196 IPv6(src=self.pg0.remote_ip6,
2197 dst=self.pg0.local_ip6) /
2198 inet6.TCP(sport=1234, dport=1234) /
2204 # Configure a punt redirect via pg1.
2206 nh_addr = self.pg1.remote_ip6
2207 self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
2208 self.pg1.sw_if_index,
2211 self.send_and_expect(self.pg0, pkts, self.pg1)
2216 policer = VppPolicer(self, "ip6-punt", 400, 0, 10, 0, rate_type=1)
2217 policer.add_vpp_config()
2218 self.vapi.ip_punt_police(policer.policer_index, is_ip6=1)
2220 self.vapi.cli("clear trace")
2221 self.pg0.add_stream(pkts)
2222 self.pg_enable_capture(self.pg_interfaces)
2226 # the number of packet received should be greater than 0,
2227 # but not equal to the number sent, since some were policed
2229 rx = self.pg1._get_capture(1)
2230 self.assertGreater(len(rx), 0)
2231 self.assertLess(len(rx), len(pkts))
2234 # remove the policer. back to full rx
2236 self.vapi.ip_punt_police(policer.policer_index, is_add=0, is_ip6=1)
2237 policer.remove_vpp_config()
2238 self.send_and_expect(self.pg0, pkts, self.pg1)
2241 # remove the redirect. expect full drop.
2243 self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
2244 self.pg1.sw_if_index,
2247 self.send_and_assert_no_replies(self.pg0, pkts,
2248 "IP no punt config")
2251 # Add a redirect that is not input port selective
2253 self.vapi.ip_punt_redirect(0xffffffff,
2254 self.pg1.sw_if_index,
2256 self.send_and_expect(self.pg0, pkts, self.pg1)
2258 self.vapi.ip_punt_redirect(0xffffffff,
2259 self.pg1.sw_if_index,
2263 def test_ip_punt_dump(self):
2264 """ IP6 punt redirect dump"""
2267 # Configure a punt redirects
2269 nh_addr = self.pg3.remote_ip6
2270 self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
2271 self.pg3.sw_if_index,
2273 self.vapi.ip_punt_redirect(self.pg1.sw_if_index,
2274 self.pg3.sw_if_index,
2276 self.vapi.ip_punt_redirect(self.pg2.sw_if_index,
2277 self.pg3.sw_if_index,
2281 # Dump pg0 punt redirects
2283 punts = self.vapi.ip_punt_redirect_dump(self.pg0.sw_if_index,
2286 self.assertEqual(p.punt.rx_sw_if_index, self.pg0.sw_if_index)
2289 # Dump punt redirects for all interfaces
2291 punts = self.vapi.ip_punt_redirect_dump(0xffffffff, is_ipv6=1)
2292 self.assertEqual(len(punts), 3)
2294 self.assertEqual(p.punt.tx_sw_if_index, self.pg3.sw_if_index)
2295 self.assertNotEqual(punts[1].punt.nh, self.pg3.remote_ip6)
2296 self.assertEqual(str(punts[2].punt.nh), '::')
2299 class TestIPDeag(VppTestCase):
2300 """ IPv6 Deaggregate Routes """
2303 def setUpClass(cls):
2304 super(TestIPDeag, cls).setUpClass()
2307 def tearDownClass(cls):
2308 super(TestIPDeag, cls).tearDownClass()
2311 super(TestIPDeag, self).setUp()
2313 self.create_pg_interfaces(range(3))
2315 for i in self.pg_interfaces:
2321 super(TestIPDeag, self).tearDown()
2322 for i in self.pg_interfaces:
2326 def test_ip_deag(self):
2327 """ IP Deag Routes """
2330 # Create a table to be used for:
2331 # 1 - another destination address lookup
2332 # 2 - a source address lookup
2334 table_dst = VppIpTable(self, 1, is_ip6=1)
2335 table_src = VppIpTable(self, 2, is_ip6=1)
2336 table_dst.add_vpp_config()
2337 table_src.add_vpp_config()
2340 # Add a route in the default table to point to a deag/
2341 # second lookup in each of these tables
2343 route_to_dst = VppIpRoute(self, "1::1", 128,
2347 route_to_src = VppIpRoute(
2352 type=FibPathType.FIB_PATH_TYPE_SOURCE_LOOKUP)])
2354 route_to_dst.add_vpp_config()
2355 route_to_src.add_vpp_config()
2358 # packets to these destination are dropped, since they'll
2359 # hit the respective default routes in the second table
2361 p_dst = (Ether(src=self.pg0.remote_mac,
2362 dst=self.pg0.local_mac) /
2363 IPv6(src="5::5", dst="1::1") /
2364 inet6.TCP(sport=1234, dport=1234) /
2366 p_src = (Ether(src=self.pg0.remote_mac,
2367 dst=self.pg0.local_mac) /
2368 IPv6(src="2::2", dst="1::2") /
2369 inet6.TCP(sport=1234, dport=1234) /
2371 pkts_dst = p_dst * 257
2372 pkts_src = p_src * 257
2374 self.send_and_assert_no_replies(self.pg0, pkts_dst,
2376 self.send_and_assert_no_replies(self.pg0, pkts_src,
2380 # add a route in the dst table to forward via pg1
2382 route_in_dst = VppIpRoute(self, "1::1", 128,
2383 [VppRoutePath(self.pg1.remote_ip6,
2384 self.pg1.sw_if_index)],
2386 route_in_dst.add_vpp_config()
2388 self.send_and_expect(self.pg0, pkts_dst, self.pg1)
2391 # add a route in the src table to forward via pg2
2393 route_in_src = VppIpRoute(self, "2::2", 128,
2394 [VppRoutePath(self.pg2.remote_ip6,
2395 self.pg2.sw_if_index)],
2397 route_in_src.add_vpp_config()
2398 self.send_and_expect(self.pg0, pkts_src, self.pg2)
2401 # loop in the lookup DP
2403 route_loop = VppIpRoute(self, "3::3", 128,
2406 route_loop.add_vpp_config()
2408 p_l = (Ether(src=self.pg0.remote_mac,
2409 dst=self.pg0.local_mac) /
2410 IPv6(src="3::4", dst="3::3") /
2411 inet6.TCP(sport=1234, dport=1234) /
2414 self.send_and_assert_no_replies(self.pg0, p_l * 257,
2418 class TestIP6Input(VppTestCase):
2419 """ IPv6 Input Exception Test Cases """
2422 def setUpClass(cls):
2423 super(TestIP6Input, cls).setUpClass()
2426 def tearDownClass(cls):
2427 super(TestIP6Input, cls).tearDownClass()
2430 super(TestIP6Input, self).setUp()
2432 self.create_pg_interfaces(range(2))
2434 for i in self.pg_interfaces:
2440 super(TestIP6Input, self).tearDown()
2441 for i in self.pg_interfaces:
2445 def test_ip_input_icmp_reply(self):
2446 """ IP6 Input Exception - Return ICMP (3,0) """
2448 # hop limit - ICMP replies
2450 p_version = (Ether(src=self.pg0.remote_mac,
2451 dst=self.pg0.local_mac) /
2452 IPv6(src=self.pg0.remote_ip6,
2453 dst=self.pg1.remote_ip6,
2455 inet6.UDP(sport=1234, dport=1234) /
2458 rx = self.send_and_expect(self.pg0, p_version * NUM_PKTS, self.pg0)
2460 icmp = rx[ICMPv6TimeExceeded]
2462 # 0: "hop limit exceeded in transit",
2463 self.assertEqual((icmp.type, icmp.code), (3, 0))
2465 icmpv6_data = '\x0a' * 18
2467 all_1s = "FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF"
2469 @parameterized.expand([
2470 # Name, src, dst, l4proto, msg, timeout
2471 ("src='iface', dst='iface'", None, None,
2472 inet6.UDP(sport=1234, dport=1234), "funky version", None),
2473 ("src='All 0's', dst='iface'", all_0s, None,
2474 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2475 ("src='iface', dst='All 0's'", None, all_0s,
2476 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2477 ("src='All 1's', dst='iface'", all_1s, None,
2478 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2479 ("src='iface', dst='All 1's'", None, all_1s,
2480 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2481 ("src='All 1's', dst='All 1's'", all_1s, all_1s,
2482 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2485 def test_ip_input_no_replies(self, name, src, dst, l4, msg, timeout):
2487 self._testMethodDoc = 'IPv6 Input Exception - %s' % name
2489 p_version = (Ether(src=self.pg0.remote_mac,
2490 dst=self.pg0.local_mac) /
2491 IPv6(src=src or self.pg0.remote_ip6,
2492 dst=dst or self.pg1.remote_ip6,
2497 self.send_and_assert_no_replies(self.pg0, p_version * NUM_PKTS,
2501 def test_hop_by_hop(self):
2502 """ Hop-by-hop header test """
2504 p = (Ether(src=self.pg0.remote_mac,
2505 dst=self.pg0.local_mac) /
2506 IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6) /
2507 IPv6ExtHdrHopByHop() /
2508 inet6.UDP(sport=1234, dport=1234) /
2511 self.pg0.add_stream(p)
2512 self.pg_enable_capture(self.pg_interfaces)
2516 class TestIPReplace(VppTestCase):
2517 """ IPv6 Table Replace """
2520 def setUpClass(cls):
2521 super(TestIPReplace, cls).setUpClass()
2524 def tearDownClass(cls):
2525 super(TestIPReplace, cls).tearDownClass()
2528 super(TestIPReplace, self).setUp()
2530 self.create_pg_interfaces(range(4))
2535 for i in self.pg_interfaces:
2538 i.generate_remote_hosts(2)
2539 self.tables.append(VppIpTable(self, table_id,
2540 True).add_vpp_config())
2544 super(TestIPReplace, self).tearDown()
2545 for i in self.pg_interfaces:
2549 def test_replace(self):
2550 """ IP Table Replace """
2553 links = [self.pg0, self.pg1, self.pg2, self.pg3]
2554 routes = [[], [], [], []]
2556 # the sizes of 'empty' tables
2557 for t in self.tables:
2558 self.assertEqual(len(t.dump()), 2)
2559 self.assertEqual(len(t.mdump()), 5)
2561 # load up the tables with some routes
2562 for ii, t in enumerate(self.tables):
2563 for jj in range(1, N_ROUTES):
2565 self, "2001::%d" % jj if jj != 0 else "2001::", 128,
2566 [VppRoutePath(links[ii].remote_hosts[0].ip6,
2567 links[ii].sw_if_index),
2568 VppRoutePath(links[ii].remote_hosts[1].ip6,
2569 links[ii].sw_if_index)],
2570 table_id=t.table_id).add_vpp_config()
2571 multi = VppIpMRoute(
2573 "ff:2001::%d" % jj, 128,
2574 MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
2575 [VppMRoutePath(self.pg0.sw_if_index,
2576 MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT,
2577 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
2578 VppMRoutePath(self.pg1.sw_if_index,
2579 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
2580 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
2581 VppMRoutePath(self.pg2.sw_if_index,
2582 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
2583 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
2584 VppMRoutePath(self.pg3.sw_if_index,
2585 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
2586 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6)],
2587 table_id=t.table_id).add_vpp_config()
2588 routes[ii].append({'uni': uni,
2592 # replace the tables a few times
2595 # replace each table
2596 for t in self.tables:
2599 # all the routes are still there
2600 for ii, t in enumerate(self.tables):
2603 for r in routes[ii]:
2604 self.assertTrue(find_route_in_dump(dump, r['uni'], t))
2605 self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
2607 # redownload the even numbered routes
2608 for ii, t in enumerate(self.tables):
2609 for jj in range(0, N_ROUTES, 2):
2610 routes[ii][jj]['uni'].add_vpp_config()
2611 routes[ii][jj]['multi'].add_vpp_config()
2613 # signal each table converged
2614 for t in self.tables:
2617 # we should find the even routes, but not the odd
2618 for ii, t in enumerate(self.tables):
2621 for jj in range(0, N_ROUTES, 2):
2622 self.assertTrue(find_route_in_dump(
2623 dump, routes[ii][jj]['uni'], t))
2624 self.assertTrue(find_mroute_in_dump(
2625 mdump, routes[ii][jj]['multi'], t))
2626 for jj in range(1, N_ROUTES - 1, 2):
2627 self.assertFalse(find_route_in_dump(
2628 dump, routes[ii][jj]['uni'], t))
2629 self.assertFalse(find_mroute_in_dump(
2630 mdump, routes[ii][jj]['multi'], t))
2632 # reload all the routes
2633 for ii, t in enumerate(self.tables):
2634 for r in routes[ii]:
2635 r['uni'].add_vpp_config()
2636 r['multi'].add_vpp_config()
2638 # all the routes are still there
2639 for ii, t in enumerate(self.tables):
2642 for r in routes[ii]:
2643 self.assertTrue(find_route_in_dump(dump, r['uni'], t))
2644 self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
2647 # finally flush the tables for good measure
2649 for t in self.tables:
2651 self.assertEqual(len(t.dump()), 2)
2652 self.assertEqual(len(t.mdump()), 5)
2655 class TestIP6Replace(VppTestCase):
2656 """ IPv4 Interface Address Replace """
2659 def setUpClass(cls):
2660 super(TestIP6Replace, cls).setUpClass()
2663 def tearDownClass(cls):
2664 super(TestIP6Replace, cls).tearDownClass()
2667 super(TestIP6Replace, self).setUp()
2669 self.create_pg_interfaces(range(4))
2671 for i in self.pg_interfaces:
2675 super(TestIP6Replace, self).tearDown()
2676 for i in self.pg_interfaces:
2679 def get_n_pfxs(self, intf):
2680 return len(self.vapi.ip_address_dump(intf.sw_if_index, True))
2682 def test_replace(self):
2683 """ IP interface address replace """
2685 intf_pfxs = [[], [], [], []]
2687 # add prefixes to each of the interfaces
2688 for i in range(len(self.pg_interfaces)):
2689 intf = self.pg_interfaces[i]
2692 addr = "2001:16:%d::1" % intf.sw_if_index
2693 a = VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
2694 intf_pfxs[i].append(a)
2696 # 2001:16:x::2/64 - a different address in the same subnet as above
2697 addr = "2001:16:%d::2" % intf.sw_if_index
2698 a = VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
2699 intf_pfxs[i].append(a)
2701 # 2001:15:x::2/64 - a different address and subnet
2702 addr = "2001:15:%d::2" % intf.sw_if_index
2703 a = VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
2704 intf_pfxs[i].append(a)
2706 # a dump should n_address in it
2707 for intf in self.pg_interfaces:
2708 self.assertEqual(self.get_n_pfxs(intf), 3)
2711 # remove all the address thru a replace
2713 self.vapi.sw_interface_address_replace_begin()
2714 self.vapi.sw_interface_address_replace_end()
2715 for intf in self.pg_interfaces:
2716 self.assertEqual(self.get_n_pfxs(intf), 0)
2719 # add all the interface addresses back
2724 for intf in self.pg_interfaces:
2725 self.assertEqual(self.get_n_pfxs(intf), 3)
2728 # replace again, but this time update/re-add the address on the first
2731 self.vapi.sw_interface_address_replace_begin()
2733 for p in intf_pfxs[:2]:
2737 self.vapi.sw_interface_address_replace_end()
2739 # on the first two the address still exist,
2740 # on the other two they do not
2741 for intf in self.pg_interfaces[:2]:
2742 self.assertEqual(self.get_n_pfxs(intf), 3)
2743 for p in intf_pfxs[:2]:
2745 self.assertTrue(v.query_vpp_config())
2746 for intf in self.pg_interfaces[2:]:
2747 self.assertEqual(self.get_n_pfxs(intf), 0)
2750 # add all the interface addresses back on the last two
2752 for p in intf_pfxs[2:]:
2755 for intf in self.pg_interfaces:
2756 self.assertEqual(self.get_n_pfxs(intf), 3)
2759 # replace again, this time add different prefixes on all the interfaces
2761 self.vapi.sw_interface_address_replace_begin()
2764 for intf in self.pg_interfaces:
2766 addr = "2001:18:%d::1" % intf.sw_if_index
2767 pfxs.append(VppIpInterfaceAddress(self, intf, addr,
2768 64).add_vpp_config())
2770 self.vapi.sw_interface_address_replace_end()
2772 # only .18 should exist on each interface
2773 for intf in self.pg_interfaces:
2774 self.assertEqual(self.get_n_pfxs(intf), 1)
2776 self.assertTrue(pfx.query_vpp_config())
2781 self.vapi.sw_interface_address_replace_begin()
2782 self.vapi.sw_interface_address_replace_end()
2783 for intf in self.pg_interfaces:
2784 self.assertEqual(self.get_n_pfxs(intf), 0)
2787 # add prefixes to each interface. post-begin add the prefix from
2788 # interface X onto interface Y. this would normally be an error
2789 # since it would generate a 'duplicate address' warning. but in
2790 # this case, since what is newly downloaded is sane, it's ok
2792 for intf in self.pg_interfaces:
2794 addr = "2001:18:%d::1" % intf.sw_if_index
2795 VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
2797 self.vapi.sw_interface_address_replace_begin()
2800 for intf in self.pg_interfaces:
2802 addr = "2001:18:%d::1" % (intf.sw_if_index + 1)
2803 pfxs.append(VppIpInterfaceAddress(self, intf,
2804 addr, 64).add_vpp_config())
2806 self.vapi.sw_interface_address_replace_end()
2808 self.logger.info(self.vapi.cli("sh int addr"))
2810 for intf in self.pg_interfaces:
2811 self.assertEqual(self.get_n_pfxs(intf), 1)
2813 self.assertTrue(pfx.query_vpp_config())
2816 class TestIP6LinkLocal(VppTestCase):
2817 """ IPv6 Link Local """
2820 def setUpClass(cls):
2821 super(TestIP6LinkLocal, cls).setUpClass()
2824 def tearDownClass(cls):
2825 super(TestIP6LinkLocal, cls).tearDownClass()
2828 super(TestIP6LinkLocal, self).setUp()
2830 self.create_pg_interfaces(range(2))
2832 for i in self.pg_interfaces:
2836 super(TestIP6LinkLocal, self).tearDown()
2837 for i in self.pg_interfaces:
2840 def test_ip6_ll(self):
2841 """ IPv6 Link Local """
2844 # two APIs to add a link local address.
2845 # 1 - just like any other prefix
2846 # 2 - with the special set LL API
2850 # First with the API to set a 'normal' prefix
2856 VppIpInterfaceAddress(self, self.pg0, ll1, 128).add_vpp_config()
2859 # should be able to ping the ll
2861 p_echo_request_1 = (Ether(src=self.pg0.remote_mac,
2862 dst=self.pg0.local_mac) /
2865 ICMPv6EchoRequest())
2867 self.send_and_expect(self.pg0, [p_echo_request_1], self.pg0)
2870 # change the link-local on pg0
2872 v_ll3 = VppIpInterfaceAddress(self, self.pg0,
2873 ll3, 128).add_vpp_config()
2875 p_echo_request_3 = (Ether(src=self.pg0.remote_mac,
2876 dst=self.pg0.local_mac) /
2879 ICMPv6EchoRequest())
2881 self.send_and_expect(self.pg0, [p_echo_request_3], self.pg0)
2884 # set a normal v6 prefix on the link
2886 self.pg0.config_ip6()
2888 self.send_and_expect(self.pg0, [p_echo_request_3], self.pg0)
2890 # the link-local cannot be removed
2891 with self.vapi.assert_negative_api_retval():
2892 v_ll3.remove_vpp_config()
2895 # Use the specific link-local API on pg1
2897 VppIp6LinkLocalAddress(self, self.pg1, ll1).add_vpp_config()
2898 self.send_and_expect(self.pg1, [p_echo_request_1], self.pg1)
2900 VppIp6LinkLocalAddress(self, self.pg1, ll3).add_vpp_config()
2901 self.send_and_expect(self.pg1, [p_echo_request_3], self.pg1)
2904 if __name__ == '__main__':
2905 unittest.main(testRunner=VppTestRunner)