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))
1129 class TestICMPv6Echo(VppTestCase):
1130 """ ICMPv6 Echo Test Case """
1133 def setUpClass(cls):
1134 super(TestICMPv6Echo, cls).setUpClass()
1137 def tearDownClass(cls):
1138 super(TestICMPv6Echo, cls).tearDownClass()
1141 super(TestICMPv6Echo, self).setUp()
1143 # create 1 pg interface
1144 self.create_pg_interfaces(range(1))
1146 for i in self.pg_interfaces:
1152 super(TestICMPv6Echo, self).tearDown()
1153 for i in self.pg_interfaces:
1157 def test_icmpv6_echo(self):
1158 """ VPP replies to ICMPv6 Echo Request
1162 - Receive ICMPv6 Echo Request message on pg0 interface.
1163 - Check outgoing ICMPv6 Echo Reply message on pg0 interface.
1168 icmpv6_data = b'\x0a' * 18
1169 p_echo_request = (Ether(src=self.pg0.remote_mac,
1170 dst=self.pg0.local_mac) /
1171 IPv6(src=self.pg0.remote_ip6,
1172 dst=self.pg0.local_ip6) /
1178 self.pg0.add_stream(p_echo_request)
1179 self.pg_enable_capture(self.pg_interfaces)
1182 rx = self.pg0.get_capture(1)
1186 icmpv6 = rx[ICMPv6EchoReply]
1188 self.assertEqual(ether.src, self.pg0.local_mac)
1189 self.assertEqual(ether.dst, self.pg0.remote_mac)
1191 self.assertEqual(ipv6.src, self.pg0.local_ip6)
1192 self.assertEqual(ipv6.dst, self.pg0.remote_ip6)
1195 icmp6types[icmpv6.type], "Echo Reply")
1196 self.assertEqual(icmpv6.id, icmpv6_id)
1197 self.assertEqual(icmpv6.seq, icmpv6_seq)
1198 self.assertEqual(icmpv6.data, icmpv6_data)
1201 class TestIPv6RD(TestIPv6ND):
1202 """ IPv6 Router Discovery Test Case """
1205 def setUpClass(cls):
1206 super(TestIPv6RD, cls).setUpClass()
1209 def tearDownClass(cls):
1210 super(TestIPv6RD, cls).tearDownClass()
1213 super(TestIPv6RD, self).setUp()
1215 # create 2 pg interfaces
1216 self.create_pg_interfaces(range(2))
1218 self.interfaces = list(self.pg_interfaces)
1220 # setup all interfaces
1221 for i in self.interfaces:
1226 for i in self.interfaces:
1229 super(TestIPv6RD, self).tearDown()
1231 def test_rd_send_router_solicitation(self):
1232 """ Verify router solicitation packets """
1235 self.pg_enable_capture(self.pg_interfaces)
1237 self.vapi.ip6nd_send_router_solicitation(self.pg1.sw_if_index,
1239 rx_list = self.pg1.get_capture(count, timeout=3)
1240 self.assertEqual(len(rx_list), count)
1241 for packet in rx_list:
1242 self.assertEqual(packet.haslayer(IPv6), 1)
1243 self.assertEqual(packet[IPv6].haslayer(
1245 dst = ip6_normalize(packet[IPv6].dst)
1246 dst2 = ip6_normalize("ff02::2")
1247 self.assert_equal(dst, dst2)
1248 src = ip6_normalize(packet[IPv6].src)
1249 src2 = ip6_normalize(self.pg1.local_ip6_ll)
1250 self.assert_equal(src, src2)
1252 bool(packet[ICMPv6ND_RS].haslayer(
1253 ICMPv6NDOptSrcLLAddr)))
1255 packet[ICMPv6NDOptSrcLLAddr].lladdr,
1258 def verify_prefix_info(self, reported_prefix, prefix_option):
1259 prefix = IPv6Network(
1260 text_type(prefix_option.getfieldval("prefix") +
1262 text_type(prefix_option.getfieldval("prefixlen"))),
1264 self.assert_equal(reported_prefix.prefix.network_address,
1265 prefix.network_address)
1266 L = prefix_option.getfieldval("L")
1267 A = prefix_option.getfieldval("A")
1268 option_flags = (L << 7) | (A << 6)
1269 self.assert_equal(reported_prefix.flags, option_flags)
1270 self.assert_equal(reported_prefix.valid_time,
1271 prefix_option.getfieldval("validlifetime"))
1272 self.assert_equal(reported_prefix.preferred_time,
1273 prefix_option.getfieldval("preferredlifetime"))
1275 def test_rd_receive_router_advertisement(self):
1276 """ Verify events triggered by received RA packets """
1278 self.vapi.want_ip6_ra_events(enable=1)
1280 prefix_info_1 = ICMPv6NDOptPrefixInfo(
1284 preferredlifetime=500,
1289 prefix_info_2 = ICMPv6NDOptPrefixInfo(
1293 preferredlifetime=1000,
1298 p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
1299 IPv6(dst=self.pg1.local_ip6_ll,
1300 src=mk_ll_addr(self.pg1.remote_mac)) /
1304 self.pg1.add_stream([p])
1307 ev = self.vapi.wait_for_event(10, "ip6_ra_event")
1309 self.assert_equal(ev.current_hop_limit, 0)
1310 self.assert_equal(ev.flags, 8)
1311 self.assert_equal(ev.router_lifetime_in_sec, 1800)
1312 self.assert_equal(ev.neighbor_reachable_time_in_msec, 0)
1314 ev.time_in_msec_between_retransmitted_neighbor_solicitations, 0)
1316 self.assert_equal(ev.n_prefixes, 2)
1318 self.verify_prefix_info(ev.prefixes[0], prefix_info_1)
1319 self.verify_prefix_info(ev.prefixes[1], prefix_info_2)
1322 class TestIPv6RDControlPlane(TestIPv6ND):
1323 """ IPv6 Router Discovery Control Plane Test Case """
1326 def setUpClass(cls):
1327 super(TestIPv6RDControlPlane, cls).setUpClass()
1330 def tearDownClass(cls):
1331 super(TestIPv6RDControlPlane, cls).tearDownClass()
1334 super(TestIPv6RDControlPlane, self).setUp()
1336 # create 1 pg interface
1337 self.create_pg_interfaces(range(1))
1339 self.interfaces = list(self.pg_interfaces)
1341 # setup all interfaces
1342 for i in self.interfaces:
1347 super(TestIPv6RDControlPlane, self).tearDown()
1350 def create_ra_packet(pg, routerlifetime=None):
1351 src_ip = pg.remote_ip6_ll
1352 dst_ip = pg.local_ip6
1353 if routerlifetime is not None:
1354 ra = ICMPv6ND_RA(routerlifetime=routerlifetime)
1357 p = (Ether(dst=pg.local_mac, src=pg.remote_mac) /
1358 IPv6(dst=dst_ip, src=src_ip) / ra)
1362 def get_default_routes(fib):
1365 if entry.route.prefix.prefixlen == 0:
1366 for path in entry.route.paths:
1367 if path.sw_if_index != 0xFFFFFFFF:
1369 defaut_route['sw_if_index'] = path.sw_if_index
1370 defaut_route['next_hop'] = path.nh.address.ip6
1371 list.append(defaut_route)
1375 def get_interface_addresses(fib, pg):
1378 if entry.route.prefix.prefixlen == 128:
1379 path = entry.route.paths[0]
1380 if path.sw_if_index == pg.sw_if_index:
1381 list.append(str(entry.route.prefix.network_address))
1384 def wait_for_no_default_route(self, n_tries=50, s_time=1):
1386 fib = self.vapi.ip_route_dump(0, True)
1387 default_routes = self.get_default_routes(fib)
1388 if 0 == len(default_routes):
1390 n_tries = n_tries - 1
1396 """ Test handling of SLAAC addresses and default routes """
1398 fib = self.vapi.ip_route_dump(0, True)
1399 default_routes = self.get_default_routes(fib)
1400 initial_addresses = set(self.get_interface_addresses(fib, self.pg0))
1401 self.assertEqual(default_routes, [])
1402 router_address = IPv6Address(text_type(self.pg0.remote_ip6_ll))
1404 self.vapi.ip6_nd_address_autoconfig(self.pg0.sw_if_index, 1, 1)
1409 packet = (self.create_ra_packet(
1410 self.pg0) / ICMPv6NDOptPrefixInfo(
1414 preferredlifetime=2,
1417 ) / ICMPv6NDOptPrefixInfo(
1421 preferredlifetime=1000,
1425 self.pg0.add_stream([packet])
1428 self.sleep_on_vpp_time(0.1)
1430 fib = self.vapi.ip_route_dump(0, True)
1432 # check FIB for new address
1433 addresses = set(self.get_interface_addresses(fib, self.pg0))
1434 new_addresses = addresses.difference(initial_addresses)
1435 self.assertEqual(len(new_addresses), 1)
1436 prefix = IPv6Network(text_type("%s/%d" % (list(new_addresses)[0], 20)),
1438 self.assertEqual(prefix, IPv6Network(text_type('1::/20')))
1440 # check FIB for new default route
1441 default_routes = self.get_default_routes(fib)
1442 self.assertEqual(len(default_routes), 1)
1443 dr = default_routes[0]
1444 self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
1445 self.assertEqual(dr['next_hop'], router_address)
1447 # send RA to delete default route
1448 packet = self.create_ra_packet(self.pg0, routerlifetime=0)
1449 self.pg0.add_stream([packet])
1452 self.sleep_on_vpp_time(0.1)
1454 # check that default route is deleted
1455 fib = self.vapi.ip_route_dump(0, True)
1456 default_routes = self.get_default_routes(fib)
1457 self.assertEqual(len(default_routes), 0)
1459 self.sleep_on_vpp_time(0.1)
1462 packet = self.create_ra_packet(self.pg0)
1463 self.pg0.add_stream([packet])
1466 self.sleep_on_vpp_time(0.1)
1468 # check FIB for new default route
1469 fib = self.vapi.ip_route_dump(0, True)
1470 default_routes = self.get_default_routes(fib)
1471 self.assertEqual(len(default_routes), 1)
1472 dr = default_routes[0]
1473 self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
1474 self.assertEqual(dr['next_hop'], router_address)
1476 # send RA, updating router lifetime to 1s
1477 packet = self.create_ra_packet(self.pg0, 1)
1478 self.pg0.add_stream([packet])
1481 self.sleep_on_vpp_time(0.1)
1483 # check that default route still exists
1484 fib = self.vapi.ip_route_dump(0, True)
1485 default_routes = self.get_default_routes(fib)
1486 self.assertEqual(len(default_routes), 1)
1487 dr = default_routes[0]
1488 self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
1489 self.assertEqual(dr['next_hop'], router_address)
1491 self.sleep_on_vpp_time(1)
1493 # check that default route is deleted
1494 self.assertTrue(self.wait_for_no_default_route())
1496 # check FIB still contains the SLAAC address
1497 addresses = set(self.get_interface_addresses(fib, self.pg0))
1498 new_addresses = addresses.difference(initial_addresses)
1500 self.assertEqual(len(new_addresses), 1)
1501 prefix = IPv6Network(text_type("%s/%d" % (list(new_addresses)[0], 20)),
1503 self.assertEqual(prefix, IPv6Network(text_type('1::/20')))
1505 self.sleep_on_vpp_time(1)
1507 # check that SLAAC address is deleted
1508 fib = self.vapi.ip_route_dump(0, True)
1509 addresses = set(self.get_interface_addresses(fib, self.pg0))
1510 new_addresses = addresses.difference(initial_addresses)
1511 self.assertEqual(len(new_addresses), 0)
1514 class IPv6NDProxyTest(TestIPv6ND):
1515 """ IPv6 ND ProxyTest Case """
1518 def setUpClass(cls):
1519 super(IPv6NDProxyTest, cls).setUpClass()
1522 def tearDownClass(cls):
1523 super(IPv6NDProxyTest, cls).tearDownClass()
1526 super(IPv6NDProxyTest, self).setUp()
1528 # create 3 pg interfaces
1529 self.create_pg_interfaces(range(3))
1531 # pg0 is the master interface, with the configured subnet
1533 self.pg0.config_ip6()
1534 self.pg0.resolve_ndp()
1536 self.pg1.ip6_enable()
1537 self.pg2.ip6_enable()
1540 super(IPv6NDProxyTest, self).tearDown()
1542 def test_nd_proxy(self):
1543 """ IPv6 Proxy ND """
1546 # Generate some hosts in the subnet that we are proxying
1548 self.pg0.generate_remote_hosts(8)
1550 nsma = in6_getnsma(inet_pton(AF_INET6, self.pg0.local_ip6))
1551 d = inet_ntop(AF_INET6, nsma)
1554 # Send an NS for one of those remote hosts on one of the proxy links
1555 # expect no response since it's from an address that is not
1556 # on the link that has the prefix configured
1558 ns_pg1 = (Ether(dst=in6_getnsmac(nsma), src=self.pg1.remote_mac) /
1560 src=self.pg0._remote_hosts[2].ip6) /
1561 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
1562 ICMPv6NDOptSrcLLAddr(
1563 lladdr=self.pg0._remote_hosts[2].mac))
1565 self.send_and_assert_no_replies(self.pg1, ns_pg1, "Off link NS")
1568 # Add proxy support for the host
1570 self.vapi.ip6nd_proxy_add_del(
1571 is_add=1, ip=inet_pton(AF_INET6, self.pg0._remote_hosts[2].ip6),
1572 sw_if_index=self.pg1.sw_if_index)
1575 # try that NS again. this time we expect an NA back
1577 self.send_and_expect_na(self.pg1, ns_pg1,
1578 "NS to proxy entry",
1579 dst_ip=self.pg0._remote_hosts[2].ip6,
1580 tgt_ip=self.pg0.local_ip6)
1583 # ... and that we have an entry in the ND cache
1585 self.assertTrue(find_nbr(self,
1586 self.pg1.sw_if_index,
1587 self.pg0._remote_hosts[2].ip6))
1590 # ... and we can route traffic to it
1592 t = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
1593 IPv6(dst=self.pg0._remote_hosts[2].ip6,
1594 src=self.pg0.remote_ip6) /
1595 inet6.UDP(sport=10000, dport=20000) /
1598 self.pg0.add_stream(t)
1599 self.pg_enable_capture(self.pg_interfaces)
1601 rx = self.pg1.get_capture(1)
1604 self.assertEqual(rx[Ether].dst, self.pg0._remote_hosts[2].mac)
1605 self.assertEqual(rx[Ether].src, self.pg1.local_mac)
1607 self.assertEqual(rx[IPv6].src,
1609 self.assertEqual(rx[IPv6].dst,
1613 # Test we proxy for the host on the main interface
1615 ns_pg0 = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
1616 IPv6(dst=d, src=self.pg0.remote_ip6) /
1618 tgt=self.pg0._remote_hosts[2].ip6) /
1619 ICMPv6NDOptSrcLLAddr(
1620 lladdr=self.pg0.remote_mac))
1622 self.send_and_expect_na(self.pg0, ns_pg0,
1623 "NS to proxy entry on main",
1624 tgt_ip=self.pg0._remote_hosts[2].ip6,
1625 dst_ip=self.pg0.remote_ip6)
1628 # Setup and resolve proxy for another host on another interface
1630 ns_pg2 = (Ether(dst=in6_getnsmac(nsma), src=self.pg2.remote_mac) /
1632 src=self.pg0._remote_hosts[3].ip6) /
1633 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
1634 ICMPv6NDOptSrcLLAddr(
1635 lladdr=self.pg0._remote_hosts[2].mac))
1637 self.vapi.ip6nd_proxy_add_del(
1638 is_add=1, ip=inet_pton(AF_INET6, self.pg0._remote_hosts[3].ip6),
1639 sw_if_index=self.pg2.sw_if_index)
1641 self.send_and_expect_na(self.pg2, ns_pg2,
1642 "NS to proxy entry other interface",
1643 dst_ip=self.pg0._remote_hosts[3].ip6,
1644 tgt_ip=self.pg0.local_ip6)
1646 self.assertTrue(find_nbr(self,
1647 self.pg2.sw_if_index,
1648 self.pg0._remote_hosts[3].ip6))
1651 # hosts can communicate. pg2->pg1
1653 t2 = (Ether(dst=self.pg2.local_mac,
1654 src=self.pg0.remote_hosts[3].mac) /
1655 IPv6(dst=self.pg0._remote_hosts[2].ip6,
1656 src=self.pg0._remote_hosts[3].ip6) /
1657 inet6.UDP(sport=10000, dport=20000) /
1660 self.pg2.add_stream(t2)
1661 self.pg_enable_capture(self.pg_interfaces)
1663 rx = self.pg1.get_capture(1)
1666 self.assertEqual(rx[Ether].dst, self.pg0._remote_hosts[2].mac)
1667 self.assertEqual(rx[Ether].src, self.pg1.local_mac)
1669 self.assertEqual(rx[IPv6].src,
1671 self.assertEqual(rx[IPv6].dst,
1675 # remove the proxy configs
1677 self.vapi.ip6nd_proxy_add_del(
1678 ip=inet_pton(AF_INET6, self.pg0._remote_hosts[2].ip6),
1679 sw_if_index=self.pg1.sw_if_index, is_add=0)
1680 self.vapi.ip6nd_proxy_add_del(
1681 ip=inet_pton(AF_INET6, self.pg0._remote_hosts[3].ip6),
1682 sw_if_index=self.pg2.sw_if_index, is_add=0)
1684 self.assertFalse(find_nbr(self,
1685 self.pg2.sw_if_index,
1686 self.pg0._remote_hosts[3].ip6))
1687 self.assertFalse(find_nbr(self,
1688 self.pg1.sw_if_index,
1689 self.pg0._remote_hosts[2].ip6))
1692 # no longer proxy-ing...
1694 self.send_and_assert_no_replies(self.pg0, ns_pg0, "Proxy unconfigured")
1695 self.send_and_assert_no_replies(self.pg1, ns_pg1, "Proxy unconfigured")
1696 self.send_and_assert_no_replies(self.pg2, ns_pg2, "Proxy unconfigured")
1699 # no longer forwarding. traffic generates NS out of the glean/main
1702 self.pg2.add_stream(t2)
1703 self.pg_enable_capture(self.pg_interfaces)
1706 rx = self.pg0.get_capture(1)
1708 self.assertTrue(rx[0].haslayer(ICMPv6ND_NS))
1711 class TestIPNull(VppTestCase):
1712 """ IPv6 routes via NULL """
1715 def setUpClass(cls):
1716 super(TestIPNull, cls).setUpClass()
1719 def tearDownClass(cls):
1720 super(TestIPNull, cls).tearDownClass()
1723 super(TestIPNull, self).setUp()
1725 # create 2 pg interfaces
1726 self.create_pg_interfaces(range(1))
1728 for i in self.pg_interfaces:
1734 super(TestIPNull, self).tearDown()
1735 for i in self.pg_interfaces:
1739 def test_ip_null(self):
1740 """ IP NULL route """
1742 p = (Ether(src=self.pg0.remote_mac,
1743 dst=self.pg0.local_mac) /
1744 IPv6(src=self.pg0.remote_ip6, dst="2001::1") /
1745 inet6.UDP(sport=1234, dport=1234) /
1749 # A route via IP NULL that will reply with ICMP unreachables
1751 ip_unreach = VppIpRoute(
1753 [VppRoutePath("::", 0xffffffff,
1754 type=FibPathType.FIB_PATH_TYPE_ICMP_UNREACH)])
1755 ip_unreach.add_vpp_config()
1757 self.pg0.add_stream(p)
1758 self.pg_enable_capture(self.pg_interfaces)
1761 rx = self.pg0.get_capture(1)
1763 icmp = rx[ICMPv6DestUnreach]
1765 # 0 = "No route to destination"
1766 self.assertEqual(icmp.code, 0)
1768 # ICMP is rate limited. pause a bit
1772 # A route via IP NULL that will reply with ICMP prohibited
1774 ip_prohibit = VppIpRoute(
1775 self, "2001::1", 128,
1776 [VppRoutePath("::", 0xffffffff,
1777 type=FibPathType.FIB_PATH_TYPE_ICMP_PROHIBIT)])
1778 ip_prohibit.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 # 1 = "Communication with destination administratively prohibited"
1789 self.assertEqual(icmp.code, 1)
1792 class TestIPDisabled(VppTestCase):
1793 """ IPv6 disabled """
1796 def setUpClass(cls):
1797 super(TestIPDisabled, cls).setUpClass()
1800 def tearDownClass(cls):
1801 super(TestIPDisabled, cls).tearDownClass()
1804 super(TestIPDisabled, self).setUp()
1806 # create 2 pg interfaces
1807 self.create_pg_interfaces(range(2))
1811 self.pg0.config_ip6()
1812 self.pg0.resolve_ndp()
1814 # PG 1 is not IP enabled
1818 super(TestIPDisabled, self).tearDown()
1819 for i in self.pg_interfaces:
1823 def test_ip_disabled(self):
1828 # one accepting interface, pg0, 2 forwarding interfaces
1830 route_ff_01 = VppIpMRoute(
1834 MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
1835 [VppMRoutePath(self.pg1.sw_if_index,
1836 MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
1837 VppMRoutePath(self.pg0.sw_if_index,
1838 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
1839 route_ff_01.add_vpp_config()
1841 pu = (Ether(src=self.pg1.remote_mac,
1842 dst=self.pg1.local_mac) /
1843 IPv6(src="2001::1", dst=self.pg0.remote_ip6) /
1844 inet6.UDP(sport=1234, dport=1234) /
1846 pm = (Ether(src=self.pg1.remote_mac,
1847 dst=self.pg1.local_mac) /
1848 IPv6(src="2001::1", dst="ffef::1") /
1849 inet6.UDP(sport=1234, dport=1234) /
1853 # PG1 does not forward IP traffic
1855 self.send_and_assert_no_replies(self.pg1, pu, "IPv6 disabled")
1856 self.send_and_assert_no_replies(self.pg1, pm, "IPv6 disabled")
1861 self.pg1.config_ip6()
1864 # Now we get packets through
1866 self.pg1.add_stream(pu)
1867 self.pg_enable_capture(self.pg_interfaces)
1869 rx = self.pg0.get_capture(1)
1871 self.pg1.add_stream(pm)
1872 self.pg_enable_capture(self.pg_interfaces)
1874 rx = self.pg0.get_capture(1)
1879 self.pg1.unconfig_ip6()
1882 # PG1 does not forward IP traffic
1884 self.send_and_assert_no_replies(self.pg1, pu, "IPv6 disabled")
1885 self.send_and_assert_no_replies(self.pg1, pm, "IPv6 disabled")
1888 class TestIP6LoadBalance(VppTestCase):
1889 """ IPv6 Load-Balancing """
1892 def setUpClass(cls):
1893 super(TestIP6LoadBalance, cls).setUpClass()
1896 def tearDownClass(cls):
1897 super(TestIP6LoadBalance, cls).tearDownClass()
1900 super(TestIP6LoadBalance, self).setUp()
1902 self.create_pg_interfaces(range(5))
1904 mpls_tbl = VppMplsTable(self, 0)
1905 mpls_tbl.add_vpp_config()
1907 for i in self.pg_interfaces:
1914 for i in self.pg_interfaces:
1918 super(TestIP6LoadBalance, self).tearDown()
1920 def pg_send(self, input, pkts):
1921 self.vapi.cli("clear trace")
1922 input.add_stream(pkts)
1923 self.pg_enable_capture(self.pg_interfaces)
1926 def send_and_expect_load_balancing(self, input, pkts, outputs):
1927 self.pg_send(input, pkts)
1929 rx = oo._get_capture(1)
1930 self.assertNotEqual(0, len(rx))
1932 def send_and_expect_one_itf(self, input, pkts, itf):
1933 self.pg_send(input, pkts)
1934 rx = itf.get_capture(len(pkts))
1936 def test_ip6_load_balance(self):
1937 """ IPv6 Load-Balancing """
1940 # An array of packets that differ only in the destination port
1944 # - MPLS non-EOS with an entropy label
1948 port_mpls_neos_pkts = []
1952 # An array of packets that differ only in the source address
1957 for ii in range(NUM_PKTS):
1959 IPv6(dst="3000::1", src="3000:1::1") /
1960 inet6.UDP(sport=1234, dport=1234 + ii) /
1962 port_ip_pkts.append((Ether(src=self.pg0.remote_mac,
1963 dst=self.pg0.local_mac) /
1965 port_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
1966 dst=self.pg0.local_mac) /
1967 MPLS(label=66, ttl=2) /
1969 port_mpls_neos_pkts.append((Ether(src=self.pg0.remote_mac,
1970 dst=self.pg0.local_mac) /
1971 MPLS(label=67, ttl=2) /
1972 MPLS(label=77, ttl=2) /
1974 port_ent_pkts.append((Ether(src=self.pg0.remote_mac,
1975 dst=self.pg0.local_mac) /
1976 MPLS(label=67, ttl=2) /
1977 MPLS(label=14, ttl=2) /
1978 MPLS(label=999, ttl=2) /
1981 IPv6(dst="3000::1", src="3000:1::%d" % ii) /
1982 inet6.UDP(sport=1234, dport=1234) /
1984 src_ip_pkts.append((Ether(src=self.pg0.remote_mac,
1985 dst=self.pg0.local_mac) /
1987 src_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
1988 dst=self.pg0.local_mac) /
1989 MPLS(label=66, ttl=2) /
1993 # A route for the IP packets
1995 route_3000_1 = VppIpRoute(self, "3000::1", 128,
1996 [VppRoutePath(self.pg1.remote_ip6,
1997 self.pg1.sw_if_index),
1998 VppRoutePath(self.pg2.remote_ip6,
1999 self.pg2.sw_if_index)])
2000 route_3000_1.add_vpp_config()
2003 # a local-label for the EOS packets
2005 binding = VppMplsIpBind(self, 66, "3000::1", 128, is_ip6=1)
2006 binding.add_vpp_config()
2009 # An MPLS route for the non-EOS packets
2011 route_67 = VppMplsRoute(self, 67, 0,
2012 [VppRoutePath(self.pg1.remote_ip6,
2013 self.pg1.sw_if_index,
2015 VppRoutePath(self.pg2.remote_ip6,
2016 self.pg2.sw_if_index,
2018 route_67.add_vpp_config()
2021 # inject the packet on pg0 - expect load-balancing across the 2 paths
2022 # - since the default hash config is to use IP src,dst and port
2024 # We are not going to ensure equal amounts of packets across each link,
2025 # since the hash algorithm is statistical and therefore this can never
2026 # be guaranteed. But with 64 different packets we do expect some
2027 # balancing. So instead just ensure there is traffic on each link.
2029 self.send_and_expect_load_balancing(self.pg0, port_ip_pkts,
2030 [self.pg1, self.pg2])
2031 self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
2032 [self.pg1, self.pg2])
2033 self.send_and_expect_load_balancing(self.pg0, port_mpls_pkts,
2034 [self.pg1, self.pg2])
2035 self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
2036 [self.pg1, self.pg2])
2037 self.send_and_expect_load_balancing(self.pg0, port_mpls_neos_pkts,
2038 [self.pg1, self.pg2])
2041 # The packets with Entropy label in should not load-balance,
2042 # since the Entropy value is fixed.
2044 self.send_and_expect_one_itf(self.pg0, port_ent_pkts, self.pg1)
2047 # change the flow hash config so it's only IP src,dst
2048 # - now only the stream with differing source address will
2051 self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, sport=0, dport=0,
2054 self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
2055 [self.pg1, self.pg2])
2056 self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
2057 [self.pg1, self.pg2])
2058 self.send_and_expect_one_itf(self.pg0, port_ip_pkts, self.pg2)
2061 # change the flow hash config back to defaults
2063 self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, sport=1, dport=1,
2067 # Recursive prefixes
2068 # - testing that 2 stages of load-balancing occurs and there is no
2069 # polarisation (i.e. only 2 of 4 paths are used)
2074 for ii in range(257):
2075 port_pkts.append((Ether(src=self.pg0.remote_mac,
2076 dst=self.pg0.local_mac) /
2079 inet6.UDP(sport=1234,
2081 Raw(b'\xa5' * 100)))
2082 src_pkts.append((Ether(src=self.pg0.remote_mac,
2083 dst=self.pg0.local_mac) /
2085 src="4000:1::%d" % ii) /
2086 inet6.UDP(sport=1234, dport=1234) /
2087 Raw(b'\xa5' * 100)))
2089 route_3000_2 = VppIpRoute(self, "3000::2", 128,
2090 [VppRoutePath(self.pg3.remote_ip6,
2091 self.pg3.sw_if_index),
2092 VppRoutePath(self.pg4.remote_ip6,
2093 self.pg4.sw_if_index)])
2094 route_3000_2.add_vpp_config()
2096 route_4000_1 = VppIpRoute(self, "4000::1", 128,
2097 [VppRoutePath("3000::1",
2099 VppRoutePath("3000::2",
2101 route_4000_1.add_vpp_config()
2104 # inject the packet on pg0 - expect load-balancing across all 4 paths
2106 self.vapi.cli("clear trace")
2107 self.send_and_expect_load_balancing(self.pg0, port_pkts,
2108 [self.pg1, self.pg2,
2109 self.pg3, self.pg4])
2110 self.send_and_expect_load_balancing(self.pg0, src_pkts,
2111 [self.pg1, self.pg2,
2112 self.pg3, self.pg4])
2115 # Recursive prefixes
2116 # - testing that 2 stages of load-balancing no choices
2120 for ii in range(257):
2121 port_pkts.append((Ether(src=self.pg0.remote_mac,
2122 dst=self.pg0.local_mac) /
2125 inet6.UDP(sport=1234,
2127 Raw(b'\xa5' * 100)))
2129 route_5000_2 = VppIpRoute(self, "5000::2", 128,
2130 [VppRoutePath(self.pg3.remote_ip6,
2131 self.pg3.sw_if_index)])
2132 route_5000_2.add_vpp_config()
2134 route_6000_1 = VppIpRoute(self, "6000::1", 128,
2135 [VppRoutePath("5000::2",
2137 route_6000_1.add_vpp_config()
2140 # inject the packet on pg0 - expect load-balancing across all 4 paths
2142 self.vapi.cli("clear trace")
2143 self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg3)
2146 class TestIP6Punt(VppTestCase):
2147 """ IPv6 Punt Police/Redirect """
2150 def setUpClass(cls):
2151 super(TestIP6Punt, cls).setUpClass()
2154 def tearDownClass(cls):
2155 super(TestIP6Punt, cls).tearDownClass()
2158 super(TestIP6Punt, self).setUp()
2160 self.create_pg_interfaces(range(4))
2162 for i in self.pg_interfaces:
2168 super(TestIP6Punt, self).tearDown()
2169 for i in self.pg_interfaces:
2173 def test_ip_punt(self):
2174 """ IP6 punt police and redirect """
2176 p = (Ether(src=self.pg0.remote_mac,
2177 dst=self.pg0.local_mac) /
2178 IPv6(src=self.pg0.remote_ip6,
2179 dst=self.pg0.local_ip6) /
2180 inet6.TCP(sport=1234, dport=1234) /
2186 # Configure a punt redirect via pg1.
2188 nh_addr = self.pg1.remote_ip6
2189 self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
2190 self.pg1.sw_if_index,
2193 self.send_and_expect(self.pg0, pkts, self.pg1)
2198 policer = VppPolicer(self, "ip6-punt", 400, 0, 10, 0, rate_type=1)
2199 policer.add_vpp_config()
2200 self.vapi.ip_punt_police(policer.policer_index, is_ip6=1)
2202 self.vapi.cli("clear trace")
2203 self.pg0.add_stream(pkts)
2204 self.pg_enable_capture(self.pg_interfaces)
2208 # the number of packet received should be greater than 0,
2209 # but not equal to the number sent, since some were policed
2211 rx = self.pg1._get_capture(1)
2212 self.assertGreater(len(rx), 0)
2213 self.assertLess(len(rx), len(pkts))
2216 # remove the policer. back to full rx
2218 self.vapi.ip_punt_police(policer.policer_index, is_add=0, is_ip6=1)
2219 policer.remove_vpp_config()
2220 self.send_and_expect(self.pg0, pkts, self.pg1)
2223 # remove the redirect. expect full drop.
2225 self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
2226 self.pg1.sw_if_index,
2229 self.send_and_assert_no_replies(self.pg0, pkts,
2230 "IP no punt config")
2233 # Add a redirect that is not input port selective
2235 self.vapi.ip_punt_redirect(0xffffffff,
2236 self.pg1.sw_if_index,
2238 self.send_and_expect(self.pg0, pkts, self.pg1)
2240 self.vapi.ip_punt_redirect(0xffffffff,
2241 self.pg1.sw_if_index,
2245 def test_ip_punt_dump(self):
2246 """ IP6 punt redirect dump"""
2249 # Configure a punt redirects
2251 nh_addr = self.pg3.remote_ip6
2252 self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
2253 self.pg3.sw_if_index,
2255 self.vapi.ip_punt_redirect(self.pg1.sw_if_index,
2256 self.pg3.sw_if_index,
2258 self.vapi.ip_punt_redirect(self.pg2.sw_if_index,
2259 self.pg3.sw_if_index,
2263 # Dump pg0 punt redirects
2265 punts = self.vapi.ip_punt_redirect_dump(self.pg0.sw_if_index,
2268 self.assertEqual(p.punt.rx_sw_if_index, self.pg0.sw_if_index)
2271 # Dump punt redirects for all interfaces
2273 punts = self.vapi.ip_punt_redirect_dump(0xffffffff, is_ipv6=1)
2274 self.assertEqual(len(punts), 3)
2276 self.assertEqual(p.punt.tx_sw_if_index, self.pg3.sw_if_index)
2277 self.assertNotEqual(punts[1].punt.nh, self.pg3.remote_ip6)
2278 self.assertEqual(str(punts[2].punt.nh), '::')
2281 class TestIPDeag(VppTestCase):
2282 """ IPv6 Deaggregate Routes """
2285 def setUpClass(cls):
2286 super(TestIPDeag, cls).setUpClass()
2289 def tearDownClass(cls):
2290 super(TestIPDeag, cls).tearDownClass()
2293 super(TestIPDeag, self).setUp()
2295 self.create_pg_interfaces(range(3))
2297 for i in self.pg_interfaces:
2303 super(TestIPDeag, self).tearDown()
2304 for i in self.pg_interfaces:
2308 def test_ip_deag(self):
2309 """ IP Deag Routes """
2312 # Create a table to be used for:
2313 # 1 - another destination address lookup
2314 # 2 - a source address lookup
2316 table_dst = VppIpTable(self, 1, is_ip6=1)
2317 table_src = VppIpTable(self, 2, is_ip6=1)
2318 table_dst.add_vpp_config()
2319 table_src.add_vpp_config()
2322 # Add a route in the default table to point to a deag/
2323 # second lookup in each of these tables
2325 route_to_dst = VppIpRoute(self, "1::1", 128,
2329 route_to_src = VppIpRoute(
2334 type=FibPathType.FIB_PATH_TYPE_SOURCE_LOOKUP)])
2336 route_to_dst.add_vpp_config()
2337 route_to_src.add_vpp_config()
2340 # packets to these destination are dropped, since they'll
2341 # hit the respective default routes in the second table
2343 p_dst = (Ether(src=self.pg0.remote_mac,
2344 dst=self.pg0.local_mac) /
2345 IPv6(src="5::5", dst="1::1") /
2346 inet6.TCP(sport=1234, dport=1234) /
2348 p_src = (Ether(src=self.pg0.remote_mac,
2349 dst=self.pg0.local_mac) /
2350 IPv6(src="2::2", dst="1::2") /
2351 inet6.TCP(sport=1234, dport=1234) /
2353 pkts_dst = p_dst * 257
2354 pkts_src = p_src * 257
2356 self.send_and_assert_no_replies(self.pg0, pkts_dst,
2358 self.send_and_assert_no_replies(self.pg0, pkts_src,
2362 # add a route in the dst table to forward via pg1
2364 route_in_dst = VppIpRoute(self, "1::1", 128,
2365 [VppRoutePath(self.pg1.remote_ip6,
2366 self.pg1.sw_if_index)],
2368 route_in_dst.add_vpp_config()
2370 self.send_and_expect(self.pg0, pkts_dst, self.pg1)
2373 # add a route in the src table to forward via pg2
2375 route_in_src = VppIpRoute(self, "2::2", 128,
2376 [VppRoutePath(self.pg2.remote_ip6,
2377 self.pg2.sw_if_index)],
2379 route_in_src.add_vpp_config()
2380 self.send_and_expect(self.pg0, pkts_src, self.pg2)
2383 # loop in the lookup DP
2385 route_loop = VppIpRoute(self, "3::3", 128,
2388 route_loop.add_vpp_config()
2390 p_l = (Ether(src=self.pg0.remote_mac,
2391 dst=self.pg0.local_mac) /
2392 IPv6(src="3::4", dst="3::3") /
2393 inet6.TCP(sport=1234, dport=1234) /
2396 self.send_and_assert_no_replies(self.pg0, p_l * 257,
2400 class TestIP6Input(VppTestCase):
2401 """ IPv6 Input Exception Test Cases """
2404 def setUpClass(cls):
2405 super(TestIP6Input, cls).setUpClass()
2408 def tearDownClass(cls):
2409 super(TestIP6Input, cls).tearDownClass()
2412 super(TestIP6Input, self).setUp()
2414 self.create_pg_interfaces(range(2))
2416 for i in self.pg_interfaces:
2422 super(TestIP6Input, self).tearDown()
2423 for i in self.pg_interfaces:
2427 def test_ip_input_icmp_reply(self):
2428 """ IP6 Input Exception - Return ICMP (3,0) """
2430 # hop limit - ICMP replies
2432 p_version = (Ether(src=self.pg0.remote_mac,
2433 dst=self.pg0.local_mac) /
2434 IPv6(src=self.pg0.remote_ip6,
2435 dst=self.pg1.remote_ip6,
2437 inet6.UDP(sport=1234, dport=1234) /
2440 rx = self.send_and_expect(self.pg0, p_version * NUM_PKTS, self.pg0)
2442 icmp = rx[ICMPv6TimeExceeded]
2444 # 0: "hop limit exceeded in transit",
2445 self.assertEqual((icmp.type, icmp.code), (3, 0))
2447 icmpv6_data = '\x0a' * 18
2449 all_1s = "FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF"
2451 @parameterized.expand([
2452 # Name, src, dst, l4proto, msg, timeout
2453 ("src='iface', dst='iface'", None, None,
2454 inet6.UDP(sport=1234, dport=1234), "funky version", None),
2455 ("src='All 0's', dst='iface'", all_0s, None,
2456 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2457 ("src='iface', dst='All 0's'", None, all_0s,
2458 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2459 ("src='All 1's', dst='iface'", all_1s, None,
2460 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2461 ("src='iface', dst='All 1's'", None, all_1s,
2462 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2463 ("src='All 1's', dst='All 1's'", all_1s, all_1s,
2464 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2467 def test_ip_input_no_replies(self, name, src, dst, l4, msg, timeout):
2469 self._testMethodDoc = 'IPv6 Input Exception - %s' % name
2471 p_version = (Ether(src=self.pg0.remote_mac,
2472 dst=self.pg0.local_mac) /
2473 IPv6(src=src or self.pg0.remote_ip6,
2474 dst=dst or self.pg1.remote_ip6,
2479 self.send_and_assert_no_replies(self.pg0, p_version * NUM_PKTS,
2483 def test_hop_by_hop(self):
2484 """ Hop-by-hop header test """
2486 p = (Ether(src=self.pg0.remote_mac,
2487 dst=self.pg0.local_mac) /
2488 IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6) /
2489 IPv6ExtHdrHopByHop() /
2490 inet6.UDP(sport=1234, dport=1234) /
2493 self.pg0.add_stream(p)
2494 self.pg_enable_capture(self.pg_interfaces)
2498 class TestIPReplace(VppTestCase):
2499 """ IPv6 Table Replace """
2502 def setUpClass(cls):
2503 super(TestIPReplace, cls).setUpClass()
2506 def tearDownClass(cls):
2507 super(TestIPReplace, cls).tearDownClass()
2510 super(TestIPReplace, self).setUp()
2512 self.create_pg_interfaces(range(4))
2517 for i in self.pg_interfaces:
2520 i.generate_remote_hosts(2)
2521 self.tables.append(VppIpTable(self, table_id,
2522 True).add_vpp_config())
2526 super(TestIPReplace, self).tearDown()
2527 for i in self.pg_interfaces:
2531 def test_replace(self):
2532 """ IP Table Replace """
2535 links = [self.pg0, self.pg1, self.pg2, self.pg3]
2536 routes = [[], [], [], []]
2538 # the sizes of 'empty' tables
2539 for t in self.tables:
2540 self.assertEqual(len(t.dump()), 2)
2541 self.assertEqual(len(t.mdump()), 5)
2543 # load up the tables with some routes
2544 for ii, t in enumerate(self.tables):
2545 for jj in range(1, N_ROUTES):
2547 self, "2001::%d" % jj if jj != 0 else "2001::", 128,
2548 [VppRoutePath(links[ii].remote_hosts[0].ip6,
2549 links[ii].sw_if_index),
2550 VppRoutePath(links[ii].remote_hosts[1].ip6,
2551 links[ii].sw_if_index)],
2552 table_id=t.table_id).add_vpp_config()
2553 multi = VppIpMRoute(
2555 "ff:2001::%d" % jj, 128,
2556 MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
2557 [VppMRoutePath(self.pg0.sw_if_index,
2558 MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT,
2559 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
2560 VppMRoutePath(self.pg1.sw_if_index,
2561 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
2562 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
2563 VppMRoutePath(self.pg2.sw_if_index,
2564 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
2565 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
2566 VppMRoutePath(self.pg3.sw_if_index,
2567 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
2568 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6)],
2569 table_id=t.table_id).add_vpp_config()
2570 routes[ii].append({'uni': uni,
2574 # replace the tables a few times
2577 # replace each table
2578 for t in self.tables:
2581 # all the routes are still there
2582 for ii, t in enumerate(self.tables):
2585 for r in routes[ii]:
2586 self.assertTrue(find_route_in_dump(dump, r['uni'], t))
2587 self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
2589 # redownload the even numbered routes
2590 for ii, t in enumerate(self.tables):
2591 for jj in range(0, N_ROUTES, 2):
2592 routes[ii][jj]['uni'].add_vpp_config()
2593 routes[ii][jj]['multi'].add_vpp_config()
2595 # signal each table converged
2596 for t in self.tables:
2599 # we should find the even routes, but not the odd
2600 for ii, t in enumerate(self.tables):
2603 for jj in range(0, N_ROUTES, 2):
2604 self.assertTrue(find_route_in_dump(
2605 dump, routes[ii][jj]['uni'], t))
2606 self.assertTrue(find_mroute_in_dump(
2607 mdump, routes[ii][jj]['multi'], t))
2608 for jj in range(1, N_ROUTES - 1, 2):
2609 self.assertFalse(find_route_in_dump(
2610 dump, routes[ii][jj]['uni'], t))
2611 self.assertFalse(find_mroute_in_dump(
2612 mdump, routes[ii][jj]['multi'], t))
2614 # reload all the routes
2615 for ii, t in enumerate(self.tables):
2616 for r in routes[ii]:
2617 r['uni'].add_vpp_config()
2618 r['multi'].add_vpp_config()
2620 # all the routes are still there
2621 for ii, t in enumerate(self.tables):
2624 for r in routes[ii]:
2625 self.assertTrue(find_route_in_dump(dump, r['uni'], t))
2626 self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
2629 # finally flush the tables for good measure
2631 for t in self.tables:
2633 self.assertEqual(len(t.dump()), 2)
2634 self.assertEqual(len(t.mdump()), 5)
2637 class TestIP6Replace(VppTestCase):
2638 """ IPv4 Interface Address Replace """
2641 def setUpClass(cls):
2642 super(TestIP6Replace, cls).setUpClass()
2645 def tearDownClass(cls):
2646 super(TestIP6Replace, cls).tearDownClass()
2649 super(TestIP6Replace, self).setUp()
2651 self.create_pg_interfaces(range(4))
2653 for i in self.pg_interfaces:
2657 super(TestIP6Replace, self).tearDown()
2658 for i in self.pg_interfaces:
2661 def get_n_pfxs(self, intf):
2662 return len(self.vapi.ip_address_dump(intf.sw_if_index, True))
2664 def test_replace(self):
2665 """ IP interface address replace """
2667 intf_pfxs = [[], [], [], []]
2669 # add prefixes to each of the interfaces
2670 for i in range(len(self.pg_interfaces)):
2671 intf = self.pg_interfaces[i]
2674 addr = "2001:16:%d::1" % intf.sw_if_index
2675 a = VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
2676 intf_pfxs[i].append(a)
2678 # 2001:16:x::2/64 - a different address in the same subnet as above
2679 addr = "2001:16:%d::2" % intf.sw_if_index
2680 a = VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
2681 intf_pfxs[i].append(a)
2683 # 2001:15:x::2/64 - a different address and subnet
2684 addr = "2001:15:%d::2" % intf.sw_if_index
2685 a = VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
2686 intf_pfxs[i].append(a)
2688 # a dump should n_address in it
2689 for intf in self.pg_interfaces:
2690 self.assertEqual(self.get_n_pfxs(intf), 3)
2693 # remove all the address thru a replace
2695 self.vapi.sw_interface_address_replace_begin()
2696 self.vapi.sw_interface_address_replace_end()
2697 for intf in self.pg_interfaces:
2698 self.assertEqual(self.get_n_pfxs(intf), 0)
2701 # add all the interface addresses back
2706 for intf in self.pg_interfaces:
2707 self.assertEqual(self.get_n_pfxs(intf), 3)
2710 # replace again, but this time update/re-add the address on the first
2713 self.vapi.sw_interface_address_replace_begin()
2715 for p in intf_pfxs[:2]:
2719 self.vapi.sw_interface_address_replace_end()
2721 # on the first two the address still exist,
2722 # on the other two they do not
2723 for intf in self.pg_interfaces[:2]:
2724 self.assertEqual(self.get_n_pfxs(intf), 3)
2725 for p in intf_pfxs[:2]:
2727 self.assertTrue(v.query_vpp_config())
2728 for intf in self.pg_interfaces[2:]:
2729 self.assertEqual(self.get_n_pfxs(intf), 0)
2732 # add all the interface addresses back on the last two
2734 for p in intf_pfxs[2:]:
2737 for intf in self.pg_interfaces:
2738 self.assertEqual(self.get_n_pfxs(intf), 3)
2741 # replace again, this time add different prefixes on all the interfaces
2743 self.vapi.sw_interface_address_replace_begin()
2746 for intf in self.pg_interfaces:
2748 addr = "2001:18:%d::1" % intf.sw_if_index
2749 pfxs.append(VppIpInterfaceAddress(self, intf, addr,
2750 64).add_vpp_config())
2752 self.vapi.sw_interface_address_replace_end()
2754 # only .18 should exist on each interface
2755 for intf in self.pg_interfaces:
2756 self.assertEqual(self.get_n_pfxs(intf), 1)
2758 self.assertTrue(pfx.query_vpp_config())
2763 self.vapi.sw_interface_address_replace_begin()
2764 self.vapi.sw_interface_address_replace_end()
2765 for intf in self.pg_interfaces:
2766 self.assertEqual(self.get_n_pfxs(intf), 0)
2769 # add prefixes to each interface. post-begin add the prefix from
2770 # interface X onto interface Y. this would normally be an error
2771 # since it would generate a 'duplicate address' warning. but in
2772 # this case, since what is newly downloaded is sane, it's ok
2774 for intf in self.pg_interfaces:
2776 addr = "2001:18:%d::1" % intf.sw_if_index
2777 VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
2779 self.vapi.sw_interface_address_replace_begin()
2782 for intf in self.pg_interfaces:
2784 addr = "2001:18:%d::1" % (intf.sw_if_index + 1)
2785 pfxs.append(VppIpInterfaceAddress(self, intf,
2786 addr, 64).add_vpp_config())
2788 self.vapi.sw_interface_address_replace_end()
2790 self.logger.info(self.vapi.cli("sh int addr"))
2792 for intf in self.pg_interfaces:
2793 self.assertEqual(self.get_n_pfxs(intf), 1)
2795 self.assertTrue(pfx.query_vpp_config())
2798 class TestIP6LinkLocal(VppTestCase):
2799 """ IPv6 Link Local """
2802 def setUpClass(cls):
2803 super(TestIP6LinkLocal, cls).setUpClass()
2806 def tearDownClass(cls):
2807 super(TestIP6LinkLocal, cls).tearDownClass()
2810 super(TestIP6LinkLocal, self).setUp()
2812 self.create_pg_interfaces(range(2))
2814 for i in self.pg_interfaces:
2818 super(TestIP6LinkLocal, self).tearDown()
2819 for i in self.pg_interfaces:
2822 def test_ip6_ll(self):
2823 """ IPv6 Link Local """
2826 # two APIs to add a link local address.
2827 # 1 - just like any other prefix
2828 # 2 - with the special set LL API
2832 # First with the API to set a 'normal' prefix
2838 VppIpInterfaceAddress(self, self.pg0, ll1, 128).add_vpp_config()
2841 # should be able to ping the ll
2843 p_echo_request_1 = (Ether(src=self.pg0.remote_mac,
2844 dst=self.pg0.local_mac) /
2847 ICMPv6EchoRequest())
2849 self.send_and_expect(self.pg0, [p_echo_request_1], self.pg0)
2852 # change the link-local on pg0
2854 v_ll3 = VppIpInterfaceAddress(self, self.pg0,
2855 ll3, 128).add_vpp_config()
2857 p_echo_request_3 = (Ether(src=self.pg0.remote_mac,
2858 dst=self.pg0.local_mac) /
2861 ICMPv6EchoRequest())
2863 self.send_and_expect(self.pg0, [p_echo_request_3], self.pg0)
2866 # set a normal v6 prefix on the link
2868 self.pg0.config_ip6()
2870 self.send_and_expect(self.pg0, [p_echo_request_3], self.pg0)
2872 # the link-local cannot be removed
2873 with self.vapi.assert_negative_api_retval():
2874 v_ll3.remove_vpp_config()
2877 # Use the specific link-local API on pg1
2879 VppIp6LinkLocalAddress(self, self.pg1, ll1).add_vpp_config()
2880 self.send_and_expect(self.pg1, [p_echo_request_1], self.pg1)
2882 VppIp6LinkLocalAddress(self, self.pg1, ll3).add_vpp_config()
2883 self.send_and_expect(self.pg1, [p_echo_request_3], self.pg1)
2886 if __name__ == '__main__':
2887 unittest.main(testRunner=VppTestRunner)