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 """
173 super(TestIPv6, cls).setUpClass()
176 def tearDownClass(cls):
177 super(TestIPv6, cls).tearDownClass()
181 Perform test setup before test case.
184 - create 3 pg interfaces
185 - untagged pg0 interface
186 - Dot1Q subinterface on pg1
187 - Dot1AD subinterface on pg2
189 - put it into UP state
191 - resolve neighbor address using NDP
192 - configure 200 fib entries
194 :ivar list interfaces: pg interfaces and subinterfaces.
195 :ivar dict flows: IPv4 packet flows in test.
197 *TODO:* Create AD sub interface
199 super(TestIPv6, self).setUp()
201 # create 3 pg interfaces
202 self.create_pg_interfaces(range(3))
204 # create 2 subinterfaces for p1 and pg2
205 self.sub_interfaces = [
206 VppDot1QSubint(self, self.pg1, 100),
207 VppDot1QSubint(self, self.pg2, 200)
208 # TODO: VppDot1ADSubint(self, self.pg2, 200, 300, 400)
211 # packet flows mapping pg0 -> pg1.sub, pg2.sub, etc.
213 self.flows[self.pg0] = [self.pg1.sub_if, self.pg2.sub_if]
214 self.flows[self.pg1.sub_if] = [self.pg0, self.pg2.sub_if]
215 self.flows[self.pg2.sub_if] = [self.pg0, self.pg1.sub_if]
218 self.pg_if_packet_sizes = [64, 1500, 9020]
220 self.interfaces = list(self.pg_interfaces)
221 self.interfaces.extend(self.sub_interfaces)
223 # setup all interfaces
224 for i in self.interfaces:
230 """Run standard test teardown and log ``show ip6 neighbors``."""
231 for i in self.interfaces:
234 for i in self.sub_interfaces:
235 i.remove_vpp_config()
237 super(TestIPv6, self).tearDown()
238 if not self.vpp_dead:
239 self.logger.info(self.vapi.cli("show ip6 neighbors"))
240 # info(self.vapi.cli("show ip6 fib")) # many entries
242 def modify_packet(self, src_if, packet_size, pkt):
243 """Add load, set destination IP and extend packet to required packet
244 size for defined interface.
246 :param VppInterface src_if: Interface to create packet for.
247 :param int packet_size: Required packet size.
248 :param Scapy pkt: Packet to be modified.
250 dst_if_idx = int(packet_size / 10 % 2)
251 dst_if = self.flows[src_if][dst_if_idx]
252 info = self.create_packet_info(src_if, dst_if)
253 payload = self.info_to_payload(info)
254 p = pkt / Raw(payload)
255 p[IPv6].dst = dst_if.remote_ip6
257 if isinstance(src_if, VppSubInterface):
258 p = src_if.add_dot1_layer(p)
259 self.extend_packet(p, packet_size)
263 def create_stream(self, src_if):
264 """Create input packet stream for defined interface.
266 :param VppInterface src_if: Interface to create packet stream for.
268 hdr_ext = 4 if isinstance(src_if, VppSubInterface) else 0
269 pkt_tmpl = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
270 IPv6(src=src_if.remote_ip6) /
271 inet6.UDP(sport=1234, dport=1234))
273 pkts = [self.modify_packet(src_if, i, pkt_tmpl)
274 for i in moves.range(self.pg_if_packet_sizes[0],
275 self.pg_if_packet_sizes[1], 10)]
276 pkts_b = [self.modify_packet(src_if, i, pkt_tmpl)
277 for i in moves.range(self.pg_if_packet_sizes[1] + hdr_ext,
278 self.pg_if_packet_sizes[2] + hdr_ext,
284 def verify_capture(self, dst_if, capture):
285 """Verify captured input packet stream for defined interface.
287 :param VppInterface dst_if: Interface to verify captured packet stream
289 :param list capture: Captured packet stream.
291 self.logger.info("Verifying capture on interface %s" % dst_if.name)
293 for i in self.interfaces:
294 last_info[i.sw_if_index] = None
296 dst_sw_if_index = dst_if.sw_if_index
297 if hasattr(dst_if, 'parent'):
299 for packet in capture:
301 # Check VLAN tags and Ethernet header
302 packet = dst_if.remove_dot1_layer(packet)
303 self.assertTrue(Dot1Q not in packet)
306 udp = packet[inet6.UDP]
307 payload_info = self.payload_to_info(packet[Raw])
308 packet_index = payload_info.index
309 self.assertEqual(payload_info.dst, dst_sw_if_index)
311 "Got packet on port %s: src=%u (id=%u)" %
312 (dst_if.name, payload_info.src, packet_index))
313 next_info = self.get_next_packet_info_for_interface2(
314 payload_info.src, dst_sw_if_index,
315 last_info[payload_info.src])
316 last_info[payload_info.src] = next_info
317 self.assertTrue(next_info is not None)
318 self.assertEqual(packet_index, next_info.index)
319 saved_packet = next_info.data
320 # Check standard fields
322 ip.src, saved_packet[IPv6].src)
324 ip.dst, saved_packet[IPv6].dst)
326 udp.sport, saved_packet[inet6.UDP].sport)
328 udp.dport, saved_packet[inet6.UDP].dport)
330 self.logger.error(ppp("Unexpected or invalid packet:", packet))
332 for i in self.interfaces:
333 remaining_packet = self.get_next_packet_info_for_interface2(
334 i.sw_if_index, dst_sw_if_index, last_info[i.sw_if_index])
335 self.assertTrue(remaining_packet is None,
336 "Interface %s: Packet expected from interface %s "
337 "didn't arrive" % (dst_if.name, i.name))
339 def test_next_header_anomaly(self):
340 """ IPv6 next header anomaly test
343 - ipv6 next header field = Fragment Header (44)
344 - next header is ICMPv6 Echo Request
345 - wait for reassembly
347 pkt = (Ether(src=self.pg0.local_mac, dst=self.pg0.remote_mac) /
348 IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6, nh=44) /
351 self.pg0.add_stream(pkt)
354 # wait for reassembly
361 - Create IPv6 stream for pg0 interface
362 - Create IPv6 tagged streams for pg1's and pg2's subinterface.
363 - Send and verify received packets on each interface.
366 pkts = self.create_stream(self.pg0)
367 self.pg0.add_stream(pkts)
369 for i in self.sub_interfaces:
370 pkts = self.create_stream(i)
371 i.parent.add_stream(pkts)
373 self.pg_enable_capture(self.pg_interfaces)
376 pkts = self.pg0.get_capture()
377 self.verify_capture(self.pg0, pkts)
379 for i in self.sub_interfaces:
380 pkts = i.parent.get_capture()
381 self.verify_capture(i, pkts)
384 """ IPv6 Neighbour Solicitation Exceptions
387 - Send an NS Sourced from an address not covered by the link sub-net
388 - Send an NS to an mcast address the router has not joined
389 - Send NS for a target address the router does not onn.
393 # An NS from a non link source address
395 nsma = in6_getnsma(inet_pton(AF_INET6, self.pg0.local_ip6))
396 d = inet_ntop(AF_INET6, nsma)
398 p = (Ether(dst=in6_getnsmac(nsma)) /
399 IPv6(dst=d, src="2002::2") /
400 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
401 ICMPv6NDOptSrcLLAddr(
402 lladdr=self.pg0.remote_mac))
405 self.send_and_assert_no_replies(
407 "No response to NS source by address not on sub-net")
410 # An NS for sent to a solicited mcast group the router is
411 # not a member of FAILS
414 nsma = in6_getnsma(inet_pton(AF_INET6, "fd::ffff"))
415 d = inet_ntop(AF_INET6, nsma)
417 p = (Ether(dst=in6_getnsmac(nsma)) /
418 IPv6(dst=d, src=self.pg0.remote_ip6) /
419 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
420 ICMPv6NDOptSrcLLAddr(
421 lladdr=self.pg0.remote_mac))
424 self.send_and_assert_no_replies(
426 "No response to NS sent to unjoined mcast address")
429 # An NS whose target address is one the router does not own
431 nsma = in6_getnsma(inet_pton(AF_INET6, self.pg0.local_ip6))
432 d = inet_ntop(AF_INET6, nsma)
434 p = (Ether(dst=in6_getnsmac(nsma)) /
435 IPv6(dst=d, src=self.pg0.remote_ip6) /
436 ICMPv6ND_NS(tgt="fd::ffff") /
437 ICMPv6NDOptSrcLLAddr(
438 lladdr=self.pg0.remote_mac))
441 self.send_and_assert_no_replies(self.pg0, pkts,
442 "No response to NS for unknown target")
445 # A neighbor entry that has no associated FIB-entry
447 self.pg0.generate_remote_hosts(4)
448 nd_entry = VppNeighbor(self,
449 self.pg0.sw_if_index,
450 self.pg0.remote_hosts[2].mac,
451 self.pg0.remote_hosts[2].ip6,
453 nd_entry.add_vpp_config()
456 # check we have the neighbor, but no route
458 self.assertTrue(find_nbr(self,
459 self.pg0.sw_if_index,
460 self.pg0._remote_hosts[2].ip6))
461 self.assertFalse(find_route(self,
462 self.pg0._remote_hosts[2].ip6,
466 # send an NS from a link local address to the interface's global
469 p = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
471 dst=d, src=self.pg0._remote_hosts[2].ip6_ll) /
472 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
473 ICMPv6NDOptSrcLLAddr(
474 lladdr=self.pg0.remote_mac))
476 self.send_and_expect_na(self.pg0, p,
477 "NS from link-local",
478 dst_ip=self.pg0._remote_hosts[2].ip6_ll,
479 tgt_ip=self.pg0.local_ip6)
482 # we should have learned an ND entry for the peer's link-local
483 # but not inserted a route to it in the FIB
485 self.assertTrue(find_nbr(self,
486 self.pg0.sw_if_index,
487 self.pg0._remote_hosts[2].ip6_ll))
488 self.assertFalse(find_route(self,
489 self.pg0._remote_hosts[2].ip6_ll,
493 # An NS to the router's own Link-local
495 p = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
497 dst=d, src=self.pg0._remote_hosts[3].ip6_ll) /
498 ICMPv6ND_NS(tgt=self.pg0.local_ip6_ll) /
499 ICMPv6NDOptSrcLLAddr(
500 lladdr=self.pg0.remote_mac))
502 self.send_and_expect_na(self.pg0, p,
503 "NS to/from link-local",
504 dst_ip=self.pg0._remote_hosts[3].ip6_ll,
505 tgt_ip=self.pg0.local_ip6_ll)
508 # we should have learned an ND entry for the peer's link-local
509 # but not inserted a route to it in the FIB
511 self.assertTrue(find_nbr(self,
512 self.pg0.sw_if_index,
513 self.pg0._remote_hosts[3].ip6_ll))
514 self.assertFalse(find_route(self,
515 self.pg0._remote_hosts[3].ip6_ll,
518 def test_ns_duplicates(self):
522 # Generate some hosts on the LAN
524 self.pg1.generate_remote_hosts(3)
527 # Add host 1 on pg1 and pg2
529 ns_pg1 = VppNeighbor(self,
530 self.pg1.sw_if_index,
531 self.pg1.remote_hosts[1].mac,
532 self.pg1.remote_hosts[1].ip6)
533 ns_pg1.add_vpp_config()
534 ns_pg2 = VppNeighbor(self,
535 self.pg2.sw_if_index,
537 self.pg1.remote_hosts[1].ip6)
538 ns_pg2.add_vpp_config()
541 # IP packet destined for pg1 remote host arrives on pg1 again.
543 p = (Ether(dst=self.pg0.local_mac,
544 src=self.pg0.remote_mac) /
545 IPv6(src=self.pg0.remote_ip6,
546 dst=self.pg1.remote_hosts[1].ip6) /
547 inet6.UDP(sport=1234, dport=1234) /
550 self.pg0.add_stream(p)
551 self.pg_enable_capture(self.pg_interfaces)
554 rx1 = self.pg1.get_capture(1)
556 self.verify_ip(rx1[0],
558 self.pg1.remote_hosts[1].mac,
560 self.pg1.remote_hosts[1].ip6)
563 # remove the duplicate on pg1
564 # packet stream should generate NSs out of pg1
566 ns_pg1.remove_vpp_config()
568 self.send_and_expect_ns(self.pg0, self.pg1,
569 p, self.pg1.remote_hosts[1].ip6)
574 ns_pg1.add_vpp_config()
576 self.pg0.add_stream(p)
577 self.pg_enable_capture(self.pg_interfaces)
580 rx1 = self.pg1.get_capture(1)
582 self.verify_ip(rx1[0],
584 self.pg1.remote_hosts[1].mac,
586 self.pg1.remote_hosts[1].ip6)
588 def validate_ra(self, intf, rx, dst_ip=None, src_ip=None,
589 mtu=9000, pi_opt=None):
591 dst_ip = intf.remote_ip6
593 src_ip = mk_ll_addr(intf.local_mac)
595 # unicasted packets must come to the unicast mac
596 self.assertEqual(rx[Ether].dst, intf.remote_mac)
598 # and from the router's MAC
599 self.assertEqual(rx[Ether].src, intf.local_mac)
601 # the rx'd RA should be addressed to the sender's source
602 self.assertTrue(rx.haslayer(ICMPv6ND_RA))
603 self.assertEqual(in6_ptop(rx[IPv6].dst),
606 # and come from the router's link local
607 self.assertTrue(in6_islladdr(rx[IPv6].src))
608 self.assertEqual(in6_ptop(rx[IPv6].src), in6_ptop(src_ip))
610 # it should contain the links MTU
612 self.assertEqual(ra[ICMPv6NDOptMTU].mtu, mtu)
614 # it should contain the source's link layer address option
615 sll = ra[ICMPv6NDOptSrcLLAddr]
616 self.assertEqual(sll.lladdr, intf.local_mac)
619 # the RA should not contain prefix information
620 self.assertFalse(ra.haslayer(
621 ICMPv6NDOptPrefixInfo))
623 raos = rx.getlayer(ICMPv6NDOptPrefixInfo, 1)
625 # the options are nested in the scapy packet in way that i cannot
626 # decipher how to decode. this 1st layer of option always returns
627 # nested classes, so a direct obj1=obj2 comparison always fails.
628 # however, the getlayer(.., 2) does give one instance.
629 # so we cheat here and construct a new opt instance for comparison
630 rd = ICMPv6NDOptPrefixInfo(
631 prefixlen=raos.prefixlen,
635 if type(pi_opt) is list:
636 for ii in range(len(pi_opt)):
637 self.assertEqual(pi_opt[ii], rd)
639 ICMPv6NDOptPrefixInfo, ii + 2)
641 self.assertEqual(pi_opt, raos, 'Expected: %s, received: %s'
642 % (pi_opt.show(dump=True),
643 raos.show(dump=True)))
645 def send_and_expect_ra(self, intf, pkts, remark, dst_ip=None,
646 filter_out_fn=is_ipv6_misc,
649 self.vapi.cli("clear trace")
650 intf.add_stream(pkts)
651 self.pg_enable_capture(self.pg_interfaces)
653 rx = intf.get_capture(1, filter_out_fn=filter_out_fn)
655 self.assertEqual(len(rx), 1)
657 self.validate_ra(intf, rx, dst_ip, src_ip=src_ip, pi_opt=opt)
660 """ IPv6 Router Solicitation Exceptions
666 # Before we begin change the IPv6 RA responses to use the unicast
667 # address - that way we will not confuse them with the periodic
668 # RAs which go to the mcast address
669 # Sit and wait for the first periodic RA.
673 self.pg0.ip6_ra_config(send_unicast=1)
676 # An RS from a link source address
677 # - expect an RA in return
679 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
680 IPv6(dst=self.pg0.local_ip6, src=self.pg0.remote_ip6) /
683 self.send_and_expect_ra(self.pg0, pkts, "Genuine RS")
686 # For the next RS sent the RA should be rate limited
688 self.send_and_assert_no_replies(self.pg0, pkts, "RA rate limited")
691 # When we reconfigure the IPv6 RA config,
692 # we reset the RA rate limiting,
693 # so we need to do this before each test below so as not to drop
694 # packets for rate limiting reasons. Test this works here.
696 self.pg0.ip6_ra_config(send_unicast=1)
697 self.send_and_expect_ra(self.pg0, pkts, "Rate limit reset RS")
700 # An RS sent from a non-link local source
702 self.pg0.ip6_ra_config(send_unicast=1)
703 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
704 IPv6(dst=self.pg0.local_ip6,
708 self.send_and_assert_no_replies(self.pg0, pkts,
709 "RS from non-link source")
712 # Source an RS from a link local address
714 self.pg0.ip6_ra_config(send_unicast=1)
715 ll = mk_ll_addr(self.pg0.remote_mac)
716 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
717 IPv6(dst=self.pg0.local_ip6, src=ll) /
720 self.send_and_expect_ra(self.pg0, pkts,
721 "RS sourced from link-local",
725 # Send the RS multicast
727 self.pg0.ip6_ra_config(send_unicast=1)
728 dmac = in6_getnsmac(inet_pton(AF_INET6, "ff02::2"))
729 ll = mk_ll_addr(self.pg0.remote_mac)
730 p = (Ether(dst=dmac, src=self.pg0.remote_mac) /
731 IPv6(dst="ff02::2", src=ll) /
734 self.send_and_expect_ra(self.pg0, pkts,
735 "RS sourced from link-local",
739 # Source from the unspecified address ::. This happens when the RS
740 # is sent before the host has a configured address/sub-net,
741 # i.e. auto-config. Since the sender has no IP address, the reply
742 # comes back mcast - so the capture needs to not filter this.
743 # If we happen to pick up the periodic RA at this point then so be it,
746 self.pg0.ip6_ra_config(send_unicast=1, suppress=1)
747 p = (Ether(dst=dmac, src=self.pg0.remote_mac) /
748 IPv6(dst="ff02::2", src="::") /
751 self.send_and_expect_ra(self.pg0, pkts,
752 "RS sourced from unspecified",
757 # Configure The RA to announce the links prefix
759 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
760 self.pg0.local_ip6_prefix_len))
763 # RAs should now contain the prefix information option
765 opt = ICMPv6NDOptPrefixInfo(
766 prefixlen=self.pg0.local_ip6_prefix_len,
767 prefix=self.pg0.local_ip6,
771 self.pg0.ip6_ra_config(send_unicast=1)
772 ll = mk_ll_addr(self.pg0.remote_mac)
773 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
774 IPv6(dst=self.pg0.local_ip6, src=ll) /
776 self.send_and_expect_ra(self.pg0, p,
777 "RA with prefix-info",
782 # Change the prefix info to not off-link
785 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
786 self.pg0.local_ip6_prefix_len),
789 opt = ICMPv6NDOptPrefixInfo(
790 prefixlen=self.pg0.local_ip6_prefix_len,
791 prefix=self.pg0.local_ip6,
795 self.pg0.ip6_ra_config(send_unicast=1)
796 self.send_and_expect_ra(self.pg0, p,
797 "RA with Prefix info with L-flag=0",
802 # Change the prefix info to not off-link, no-autoconfig
803 # L and A flag are clear in the advert
805 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
806 self.pg0.local_ip6_prefix_len),
810 opt = ICMPv6NDOptPrefixInfo(
811 prefixlen=self.pg0.local_ip6_prefix_len,
812 prefix=self.pg0.local_ip6,
816 self.pg0.ip6_ra_config(send_unicast=1)
817 self.send_and_expect_ra(self.pg0, p,
818 "RA with Prefix info with A & L-flag=0",
823 # Change the flag settings back to the defaults
824 # L and A flag are set in the advert
826 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
827 self.pg0.local_ip6_prefix_len))
829 opt = ICMPv6NDOptPrefixInfo(
830 prefixlen=self.pg0.local_ip6_prefix_len,
831 prefix=self.pg0.local_ip6,
835 self.pg0.ip6_ra_config(send_unicast=1)
836 self.send_and_expect_ra(self.pg0, p,
837 "RA with Prefix info",
842 # Change the prefix info to not off-link, no-autoconfig
843 # L and A flag are clear in the advert
845 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
846 self.pg0.local_ip6_prefix_len),
850 opt = ICMPv6NDOptPrefixInfo(
851 prefixlen=self.pg0.local_ip6_prefix_len,
852 prefix=self.pg0.local_ip6,
856 self.pg0.ip6_ra_config(send_unicast=1)
857 self.send_and_expect_ra(self.pg0, p,
858 "RA with Prefix info with A & L-flag=0",
863 # Use the reset to defaults option to revert to defaults
864 # L and A flag are clear in the advert
866 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
867 self.pg0.local_ip6_prefix_len),
870 opt = ICMPv6NDOptPrefixInfo(
871 prefixlen=self.pg0.local_ip6_prefix_len,
872 prefix=self.pg0.local_ip6,
876 self.pg0.ip6_ra_config(send_unicast=1)
877 self.send_and_expect_ra(self.pg0, p,
878 "RA with Prefix reverted to defaults",
883 # Advertise Another prefix. With no L-flag/A-flag
885 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg1.local_ip6,
886 self.pg1.local_ip6_prefix_len),
890 opt = [ICMPv6NDOptPrefixInfo(
891 prefixlen=self.pg0.local_ip6_prefix_len,
892 prefix=self.pg0.local_ip6,
895 ICMPv6NDOptPrefixInfo(
896 prefixlen=self.pg1.local_ip6_prefix_len,
897 prefix=self.pg1.local_ip6,
901 self.pg0.ip6_ra_config(send_unicast=1)
902 ll = mk_ll_addr(self.pg0.remote_mac)
903 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
904 IPv6(dst=self.pg0.local_ip6, src=ll) /
906 self.send_and_expect_ra(self.pg0, p,
907 "RA with multiple Prefix infos",
912 # Remove the first prefix-info - expect the second is still in the
915 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
916 self.pg0.local_ip6_prefix_len),
919 opt = ICMPv6NDOptPrefixInfo(
920 prefixlen=self.pg1.local_ip6_prefix_len,
921 prefix=self.pg1.local_ip6,
925 self.pg0.ip6_ra_config(send_unicast=1)
926 self.send_and_expect_ra(self.pg0, p,
927 "RA with Prefix reverted to defaults",
932 # Remove the second prefix-info - expect no prefix-info in the adverts
934 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg1.local_ip6,
935 self.pg1.local_ip6_prefix_len),
939 # change the link's link local, so we know that works too.
941 self.vapi.sw_interface_ip6_set_link_local_address(
942 sw_if_index=self.pg0.sw_if_index,
945 self.pg0.ip6_ra_config(send_unicast=1)
946 self.send_and_expect_ra(self.pg0, p,
947 "RA with Prefix reverted to defaults",
952 # Reset the periodic advertisements back to default values
954 self.pg0.ip6_ra_config(no=1, suppress=1, send_unicast=0)
959 # test one MLD is sent after applying an IPv6 Address on an interface
961 self.pg_enable_capture(self.pg_interfaces)
964 subitf = VppDot1QSubint(self, self.pg1, 99)
969 rxs = self.pg1._get_capture(timeout=4, filter_out_fn=None)
972 # hunt for the MLD on vlan 99
975 # make sure ipv6 packets with hop by hop options have
977 self.assert_packet_checksums_valid(rx)
978 if rx.haslayer(IPv6ExtHdrHopByHop) and \
979 rx.haslayer(Dot1Q) and \
980 rx[Dot1Q].vlan == 99:
981 mld = rx[ICMPv6MLReport2]
983 self.assertEqual(mld.records_number, 4)
986 class TestIPv6RouteLookup(VppTestCase):
987 """ IPv6 Route Lookup Test Case """
990 def route_lookup(self, prefix, exact):
991 return self.vapi.api(self.vapi.papi.ip_route_lookup,
1000 super(TestIPv6RouteLookup, cls).setUpClass()
1003 def tearDownClass(cls):
1004 super(TestIPv6RouteLookup, cls).tearDownClass()
1007 super(TestIPv6RouteLookup, self).setUp()
1009 drop_nh = VppRoutePath("::1", 0xffffffff,
1010 type=FibPathType.FIB_PATH_TYPE_DROP)
1013 r = VppIpRoute(self, "2001:1111::", 32, [drop_nh])
1015 self.routes.append(r)
1017 r = VppIpRoute(self, "2001:1111:2222::", 48, [drop_nh])
1019 self.routes.append(r)
1021 r = VppIpRoute(self, "2001:1111:2222::1", 128, [drop_nh])
1023 self.routes.append(r)
1026 # Remove the routes we added
1027 for r in self.routes:
1028 r.remove_vpp_config()
1030 super(TestIPv6RouteLookup, self).tearDown()
1032 def test_exact_match(self):
1033 # Verify we find the host route
1034 prefix = "2001:1111:2222::1/128"
1035 result = self.route_lookup(prefix, True)
1036 assert (prefix == str(result.route.prefix))
1038 # Verify we find a middle prefix route
1039 prefix = "2001:1111:2222::/48"
1040 result = self.route_lookup(prefix, True)
1041 assert (prefix == str(result.route.prefix))
1043 # Verify we do not find an available LPM.
1044 with self.vapi.assert_negative_api_retval():
1045 self.route_lookup("2001::2/128", True)
1047 def test_longest_prefix_match(self):
1048 # verify we find lpm
1049 lpm_prefix = "2001:1111:2222::/48"
1050 result = self.route_lookup("2001:1111:2222::2/128", False)
1051 assert (lpm_prefix == str(result.route.prefix))
1053 # Verify we find the exact when not requested
1054 result = self.route_lookup(lpm_prefix, False)
1055 assert (lpm_prefix == str(result.route.prefix))
1057 # Can't seem to delete the default route so no negative LPM test.
1060 class TestIPv6IfAddrRoute(VppTestCase):
1061 """ IPv6 Interface Addr Route Test Case """
1064 def setUpClass(cls):
1065 super(TestIPv6IfAddrRoute, cls).setUpClass()
1068 def tearDownClass(cls):
1069 super(TestIPv6IfAddrRoute, cls).tearDownClass()
1072 super(TestIPv6IfAddrRoute, self).setUp()
1074 # create 1 pg interface
1075 self.create_pg_interfaces(range(1))
1077 for i in self.pg_interfaces:
1083 super(TestIPv6IfAddrRoute, self).tearDown()
1084 for i in self.pg_interfaces:
1088 def test_ipv6_ifaddrs_same_prefix(self):
1089 """ IPv6 Interface Addresses Same Prefix test
1093 - Verify no route in FIB for prefix 2001:10::/64
1094 - Configure IPv4 address 2001:10::10/64 on an interface
1095 - Verify route in FIB for prefix 2001:10::/64
1096 - Configure IPv4 address 2001:10::20/64 on an interface
1097 - Delete 2001:10::10/64 from interface
1098 - Verify route in FIB for prefix 2001:10::/64
1099 - Delete 2001:10::20/64 from interface
1100 - Verify no route in FIB for prefix 2001:10::/64
1103 addr1 = "2001:10::10"
1104 addr2 = "2001:10::20"
1106 if_addr1 = VppIpInterfaceAddress(self, self.pg0, addr1, 64)
1107 if_addr2 = VppIpInterfaceAddress(self, self.pg0, addr2, 64)
1108 self.assertFalse(if_addr1.query_vpp_config())
1109 self.assertFalse(find_route(self, addr1, 128))
1110 self.assertFalse(find_route(self, addr2, 128))
1112 # configure first address, verify route present
1113 if_addr1.add_vpp_config()
1114 self.assertTrue(if_addr1.query_vpp_config())
1115 self.assertTrue(find_route(self, addr1, 128))
1116 self.assertFalse(find_route(self, addr2, 128))
1118 # configure second address, delete first, verify route not removed
1119 if_addr2.add_vpp_config()
1120 if_addr1.remove_vpp_config()
1121 self.assertFalse(if_addr1.query_vpp_config())
1122 self.assertTrue(if_addr2.query_vpp_config())
1123 self.assertFalse(find_route(self, addr1, 128))
1124 self.assertTrue(find_route(self, addr2, 128))
1126 # delete second address, verify route removed
1127 if_addr2.remove_vpp_config()
1128 self.assertFalse(if_addr1.query_vpp_config())
1129 self.assertFalse(find_route(self, addr1, 128))
1130 self.assertFalse(find_route(self, addr2, 128))
1132 def test_ipv6_ifaddr_del(self):
1133 """ Delete an interface address that does not exist """
1135 loopbacks = self.create_loopback_interfaces(1)
1136 lo = self.lo_interfaces[0]
1142 # try and remove pg0's subnet from lo
1144 with self.vapi.assert_negative_api_retval():
1145 self.vapi.sw_interface_add_del_address(
1146 sw_if_index=lo.sw_if_index,
1147 prefix=self.pg0.local_ip6_prefix,
1151 class TestICMPv6Echo(VppTestCase):
1152 """ ICMPv6 Echo Test Case """
1155 def setUpClass(cls):
1156 super(TestICMPv6Echo, cls).setUpClass()
1159 def tearDownClass(cls):
1160 super(TestICMPv6Echo, cls).tearDownClass()
1163 super(TestICMPv6Echo, self).setUp()
1165 # create 1 pg interface
1166 self.create_pg_interfaces(range(1))
1168 for i in self.pg_interfaces:
1174 super(TestICMPv6Echo, self).tearDown()
1175 for i in self.pg_interfaces:
1179 def test_icmpv6_echo(self):
1180 """ VPP replies to ICMPv6 Echo Request
1184 - Receive ICMPv6 Echo Request message on pg0 interface.
1185 - Check outgoing ICMPv6 Echo Reply message on pg0 interface.
1190 icmpv6_data = b'\x0a' * 18
1191 p_echo_request = (Ether(src=self.pg0.remote_mac,
1192 dst=self.pg0.local_mac) /
1193 IPv6(src=self.pg0.remote_ip6,
1194 dst=self.pg0.local_ip6) /
1200 self.pg0.add_stream(p_echo_request)
1201 self.pg_enable_capture(self.pg_interfaces)
1204 rx = self.pg0.get_capture(1)
1208 icmpv6 = rx[ICMPv6EchoReply]
1210 self.assertEqual(ether.src, self.pg0.local_mac)
1211 self.assertEqual(ether.dst, self.pg0.remote_mac)
1213 self.assertEqual(ipv6.src, self.pg0.local_ip6)
1214 self.assertEqual(ipv6.dst, self.pg0.remote_ip6)
1217 icmp6types[icmpv6.type], "Echo Reply")
1218 self.assertEqual(icmpv6.id, icmpv6_id)
1219 self.assertEqual(icmpv6.seq, icmpv6_seq)
1220 self.assertEqual(icmpv6.data, icmpv6_data)
1223 class TestIPv6RD(TestIPv6ND):
1224 """ IPv6 Router Discovery Test Case """
1227 def setUpClass(cls):
1228 super(TestIPv6RD, cls).setUpClass()
1231 def tearDownClass(cls):
1232 super(TestIPv6RD, cls).tearDownClass()
1235 super(TestIPv6RD, self).setUp()
1237 # create 2 pg interfaces
1238 self.create_pg_interfaces(range(2))
1240 self.interfaces = list(self.pg_interfaces)
1242 # setup all interfaces
1243 for i in self.interfaces:
1248 for i in self.interfaces:
1251 super(TestIPv6RD, self).tearDown()
1253 def test_rd_send_router_solicitation(self):
1254 """ Verify router solicitation packets """
1257 self.pg_enable_capture(self.pg_interfaces)
1259 self.vapi.ip6nd_send_router_solicitation(self.pg1.sw_if_index,
1261 rx_list = self.pg1.get_capture(count, timeout=3)
1262 self.assertEqual(len(rx_list), count)
1263 for packet in rx_list:
1264 self.assertEqual(packet.haslayer(IPv6), 1)
1265 self.assertEqual(packet[IPv6].haslayer(
1267 dst = ip6_normalize(packet[IPv6].dst)
1268 dst2 = ip6_normalize("ff02::2")
1269 self.assert_equal(dst, dst2)
1270 src = ip6_normalize(packet[IPv6].src)
1271 src2 = ip6_normalize(self.pg1.local_ip6_ll)
1272 self.assert_equal(src, src2)
1274 bool(packet[ICMPv6ND_RS].haslayer(
1275 ICMPv6NDOptSrcLLAddr)))
1277 packet[ICMPv6NDOptSrcLLAddr].lladdr,
1280 def verify_prefix_info(self, reported_prefix, prefix_option):
1281 prefix = IPv6Network(
1282 text_type(prefix_option.getfieldval("prefix") +
1284 text_type(prefix_option.getfieldval("prefixlen"))),
1286 self.assert_equal(reported_prefix.prefix.network_address,
1287 prefix.network_address)
1288 L = prefix_option.getfieldval("L")
1289 A = prefix_option.getfieldval("A")
1290 option_flags = (L << 7) | (A << 6)
1291 self.assert_equal(reported_prefix.flags, option_flags)
1292 self.assert_equal(reported_prefix.valid_time,
1293 prefix_option.getfieldval("validlifetime"))
1294 self.assert_equal(reported_prefix.preferred_time,
1295 prefix_option.getfieldval("preferredlifetime"))
1297 def test_rd_receive_router_advertisement(self):
1298 """ Verify events triggered by received RA packets """
1300 self.vapi.want_ip6_ra_events(enable=1)
1302 prefix_info_1 = ICMPv6NDOptPrefixInfo(
1306 preferredlifetime=500,
1311 prefix_info_2 = ICMPv6NDOptPrefixInfo(
1315 preferredlifetime=1000,
1320 p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
1321 IPv6(dst=self.pg1.local_ip6_ll,
1322 src=mk_ll_addr(self.pg1.remote_mac)) /
1326 self.pg1.add_stream([p])
1329 ev = self.vapi.wait_for_event(10, "ip6_ra_event")
1331 self.assert_equal(ev.current_hop_limit, 0)
1332 self.assert_equal(ev.flags, 8)
1333 self.assert_equal(ev.router_lifetime_in_sec, 1800)
1334 self.assert_equal(ev.neighbor_reachable_time_in_msec, 0)
1336 ev.time_in_msec_between_retransmitted_neighbor_solicitations, 0)
1338 self.assert_equal(ev.n_prefixes, 2)
1340 self.verify_prefix_info(ev.prefixes[0], prefix_info_1)
1341 self.verify_prefix_info(ev.prefixes[1], prefix_info_2)
1344 class TestIPv6RDControlPlane(TestIPv6ND):
1345 """ IPv6 Router Discovery Control Plane Test Case """
1348 def setUpClass(cls):
1349 super(TestIPv6RDControlPlane, cls).setUpClass()
1352 def tearDownClass(cls):
1353 super(TestIPv6RDControlPlane, cls).tearDownClass()
1356 super(TestIPv6RDControlPlane, self).setUp()
1358 # create 1 pg interface
1359 self.create_pg_interfaces(range(1))
1361 self.interfaces = list(self.pg_interfaces)
1363 # setup all interfaces
1364 for i in self.interfaces:
1369 super(TestIPv6RDControlPlane, self).tearDown()
1372 def create_ra_packet(pg, routerlifetime=None):
1373 src_ip = pg.remote_ip6_ll
1374 dst_ip = pg.local_ip6
1375 if routerlifetime is not None:
1376 ra = ICMPv6ND_RA(routerlifetime=routerlifetime)
1379 p = (Ether(dst=pg.local_mac, src=pg.remote_mac) /
1380 IPv6(dst=dst_ip, src=src_ip) / ra)
1384 def get_default_routes(fib):
1387 if entry.route.prefix.prefixlen == 0:
1388 for path in entry.route.paths:
1389 if path.sw_if_index != 0xFFFFFFFF:
1391 defaut_route['sw_if_index'] = path.sw_if_index
1392 defaut_route['next_hop'] = path.nh.address.ip6
1393 list.append(defaut_route)
1397 def get_interface_addresses(fib, pg):
1400 if entry.route.prefix.prefixlen == 128:
1401 path = entry.route.paths[0]
1402 if path.sw_if_index == pg.sw_if_index:
1403 list.append(str(entry.route.prefix.network_address))
1406 def wait_for_no_default_route(self, n_tries=50, s_time=1):
1408 fib = self.vapi.ip_route_dump(0, True)
1409 default_routes = self.get_default_routes(fib)
1410 if 0 == len(default_routes):
1412 n_tries = n_tries - 1
1418 """ Test handling of SLAAC addresses and default routes """
1420 fib = self.vapi.ip_route_dump(0, True)
1421 default_routes = self.get_default_routes(fib)
1422 initial_addresses = set(self.get_interface_addresses(fib, self.pg0))
1423 self.assertEqual(default_routes, [])
1424 router_address = IPv6Address(text_type(self.pg0.remote_ip6_ll))
1426 self.vapi.ip6_nd_address_autoconfig(self.pg0.sw_if_index, 1, 1)
1431 packet = (self.create_ra_packet(
1432 self.pg0) / ICMPv6NDOptPrefixInfo(
1436 preferredlifetime=2,
1439 ) / ICMPv6NDOptPrefixInfo(
1443 preferredlifetime=1000,
1447 self.pg0.add_stream([packet])
1450 self.sleep_on_vpp_time(0.1)
1452 fib = self.vapi.ip_route_dump(0, True)
1454 # check FIB for new address
1455 addresses = set(self.get_interface_addresses(fib, self.pg0))
1456 new_addresses = addresses.difference(initial_addresses)
1457 self.assertEqual(len(new_addresses), 1)
1458 prefix = IPv6Network(text_type("%s/%d" % (list(new_addresses)[0], 20)),
1460 self.assertEqual(prefix, IPv6Network(text_type('1::/20')))
1462 # check FIB for new default route
1463 default_routes = self.get_default_routes(fib)
1464 self.assertEqual(len(default_routes), 1)
1465 dr = default_routes[0]
1466 self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
1467 self.assertEqual(dr['next_hop'], router_address)
1469 # send RA to delete default route
1470 packet = self.create_ra_packet(self.pg0, routerlifetime=0)
1471 self.pg0.add_stream([packet])
1474 self.sleep_on_vpp_time(0.1)
1476 # check that default route is deleted
1477 fib = self.vapi.ip_route_dump(0, True)
1478 default_routes = self.get_default_routes(fib)
1479 self.assertEqual(len(default_routes), 0)
1481 self.sleep_on_vpp_time(0.1)
1484 packet = self.create_ra_packet(self.pg0)
1485 self.pg0.add_stream([packet])
1488 self.sleep_on_vpp_time(0.1)
1490 # check FIB for new default route
1491 fib = self.vapi.ip_route_dump(0, True)
1492 default_routes = self.get_default_routes(fib)
1493 self.assertEqual(len(default_routes), 1)
1494 dr = default_routes[0]
1495 self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
1496 self.assertEqual(dr['next_hop'], router_address)
1498 # send RA, updating router lifetime to 1s
1499 packet = self.create_ra_packet(self.pg0, 1)
1500 self.pg0.add_stream([packet])
1503 self.sleep_on_vpp_time(0.1)
1505 # check that default route still exists
1506 fib = self.vapi.ip_route_dump(0, True)
1507 default_routes = self.get_default_routes(fib)
1508 self.assertEqual(len(default_routes), 1)
1509 dr = default_routes[0]
1510 self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
1511 self.assertEqual(dr['next_hop'], router_address)
1513 self.sleep_on_vpp_time(1)
1515 # check that default route is deleted
1516 self.assertTrue(self.wait_for_no_default_route())
1518 # check FIB still contains the SLAAC address
1519 addresses = set(self.get_interface_addresses(fib, self.pg0))
1520 new_addresses = addresses.difference(initial_addresses)
1522 self.assertEqual(len(new_addresses), 1)
1523 prefix = IPv6Network(text_type("%s/%d" % (list(new_addresses)[0], 20)),
1525 self.assertEqual(prefix, IPv6Network(text_type('1::/20')))
1527 self.sleep_on_vpp_time(1)
1529 # check that SLAAC address is deleted
1530 fib = self.vapi.ip_route_dump(0, True)
1531 addresses = set(self.get_interface_addresses(fib, self.pg0))
1532 new_addresses = addresses.difference(initial_addresses)
1533 self.assertEqual(len(new_addresses), 0)
1536 class IPv6NDProxyTest(TestIPv6ND):
1537 """ IPv6 ND ProxyTest Case """
1540 def setUpClass(cls):
1541 super(IPv6NDProxyTest, cls).setUpClass()
1544 def tearDownClass(cls):
1545 super(IPv6NDProxyTest, cls).tearDownClass()
1548 super(IPv6NDProxyTest, self).setUp()
1550 # create 3 pg interfaces
1551 self.create_pg_interfaces(range(3))
1553 # pg0 is the master interface, with the configured subnet
1555 self.pg0.config_ip6()
1556 self.pg0.resolve_ndp()
1558 self.pg1.ip6_enable()
1559 self.pg2.ip6_enable()
1562 super(IPv6NDProxyTest, self).tearDown()
1564 def test_nd_proxy(self):
1565 """ IPv6 Proxy ND """
1568 # Generate some hosts in the subnet that we are proxying
1570 self.pg0.generate_remote_hosts(8)
1572 nsma = in6_getnsma(inet_pton(AF_INET6, self.pg0.local_ip6))
1573 d = inet_ntop(AF_INET6, nsma)
1576 # Send an NS for one of those remote hosts on one of the proxy links
1577 # expect no response since it's from an address that is not
1578 # on the link that has the prefix configured
1580 ns_pg1 = (Ether(dst=in6_getnsmac(nsma), src=self.pg1.remote_mac) /
1582 src=self.pg0._remote_hosts[2].ip6) /
1583 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
1584 ICMPv6NDOptSrcLLAddr(
1585 lladdr=self.pg0._remote_hosts[2].mac))
1587 self.send_and_assert_no_replies(self.pg1, ns_pg1, "Off link NS")
1590 # Add proxy support for the host
1592 self.vapi.ip6nd_proxy_add_del(
1593 is_add=1, ip=inet_pton(AF_INET6, self.pg0._remote_hosts[2].ip6),
1594 sw_if_index=self.pg1.sw_if_index)
1597 # try that NS again. this time we expect an NA back
1599 self.send_and_expect_na(self.pg1, ns_pg1,
1600 "NS to proxy entry",
1601 dst_ip=self.pg0._remote_hosts[2].ip6,
1602 tgt_ip=self.pg0.local_ip6)
1605 # ... and that we have an entry in the ND cache
1607 self.assertTrue(find_nbr(self,
1608 self.pg1.sw_if_index,
1609 self.pg0._remote_hosts[2].ip6))
1612 # ... and we can route traffic to it
1614 t = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
1615 IPv6(dst=self.pg0._remote_hosts[2].ip6,
1616 src=self.pg0.remote_ip6) /
1617 inet6.UDP(sport=10000, dport=20000) /
1620 self.pg0.add_stream(t)
1621 self.pg_enable_capture(self.pg_interfaces)
1623 rx = self.pg1.get_capture(1)
1626 self.assertEqual(rx[Ether].dst, self.pg0._remote_hosts[2].mac)
1627 self.assertEqual(rx[Ether].src, self.pg1.local_mac)
1629 self.assertEqual(rx[IPv6].src,
1631 self.assertEqual(rx[IPv6].dst,
1635 # Test we proxy for the host on the main interface
1637 ns_pg0 = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
1638 IPv6(dst=d, src=self.pg0.remote_ip6) /
1640 tgt=self.pg0._remote_hosts[2].ip6) /
1641 ICMPv6NDOptSrcLLAddr(
1642 lladdr=self.pg0.remote_mac))
1644 self.send_and_expect_na(self.pg0, ns_pg0,
1645 "NS to proxy entry on main",
1646 tgt_ip=self.pg0._remote_hosts[2].ip6,
1647 dst_ip=self.pg0.remote_ip6)
1650 # Setup and resolve proxy for another host on another interface
1652 ns_pg2 = (Ether(dst=in6_getnsmac(nsma), src=self.pg2.remote_mac) /
1654 src=self.pg0._remote_hosts[3].ip6) /
1655 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
1656 ICMPv6NDOptSrcLLAddr(
1657 lladdr=self.pg0._remote_hosts[2].mac))
1659 self.vapi.ip6nd_proxy_add_del(
1660 is_add=1, ip=inet_pton(AF_INET6, self.pg0._remote_hosts[3].ip6),
1661 sw_if_index=self.pg2.sw_if_index)
1663 self.send_and_expect_na(self.pg2, ns_pg2,
1664 "NS to proxy entry other interface",
1665 dst_ip=self.pg0._remote_hosts[3].ip6,
1666 tgt_ip=self.pg0.local_ip6)
1668 self.assertTrue(find_nbr(self,
1669 self.pg2.sw_if_index,
1670 self.pg0._remote_hosts[3].ip6))
1673 # hosts can communicate. pg2->pg1
1675 t2 = (Ether(dst=self.pg2.local_mac,
1676 src=self.pg0.remote_hosts[3].mac) /
1677 IPv6(dst=self.pg0._remote_hosts[2].ip6,
1678 src=self.pg0._remote_hosts[3].ip6) /
1679 inet6.UDP(sport=10000, dport=20000) /
1682 self.pg2.add_stream(t2)
1683 self.pg_enable_capture(self.pg_interfaces)
1685 rx = self.pg1.get_capture(1)
1688 self.assertEqual(rx[Ether].dst, self.pg0._remote_hosts[2].mac)
1689 self.assertEqual(rx[Ether].src, self.pg1.local_mac)
1691 self.assertEqual(rx[IPv6].src,
1693 self.assertEqual(rx[IPv6].dst,
1697 # remove the proxy configs
1699 self.vapi.ip6nd_proxy_add_del(
1700 ip=inet_pton(AF_INET6, self.pg0._remote_hosts[2].ip6),
1701 sw_if_index=self.pg1.sw_if_index, is_add=0)
1702 self.vapi.ip6nd_proxy_add_del(
1703 ip=inet_pton(AF_INET6, self.pg0._remote_hosts[3].ip6),
1704 sw_if_index=self.pg2.sw_if_index, is_add=0)
1706 self.assertFalse(find_nbr(self,
1707 self.pg2.sw_if_index,
1708 self.pg0._remote_hosts[3].ip6))
1709 self.assertFalse(find_nbr(self,
1710 self.pg1.sw_if_index,
1711 self.pg0._remote_hosts[2].ip6))
1714 # no longer proxy-ing...
1716 self.send_and_assert_no_replies(self.pg0, ns_pg0, "Proxy unconfigured")
1717 self.send_and_assert_no_replies(self.pg1, ns_pg1, "Proxy unconfigured")
1718 self.send_and_assert_no_replies(self.pg2, ns_pg2, "Proxy unconfigured")
1721 # no longer forwarding. traffic generates NS out of the glean/main
1724 self.pg2.add_stream(t2)
1725 self.pg_enable_capture(self.pg_interfaces)
1728 rx = self.pg0.get_capture(1)
1730 self.assertTrue(rx[0].haslayer(ICMPv6ND_NS))
1733 class TestIPNull(VppTestCase):
1734 """ IPv6 routes via NULL """
1737 def setUpClass(cls):
1738 super(TestIPNull, cls).setUpClass()
1741 def tearDownClass(cls):
1742 super(TestIPNull, cls).tearDownClass()
1745 super(TestIPNull, self).setUp()
1747 # create 2 pg interfaces
1748 self.create_pg_interfaces(range(1))
1750 for i in self.pg_interfaces:
1756 super(TestIPNull, self).tearDown()
1757 for i in self.pg_interfaces:
1761 def test_ip_null(self):
1762 """ IP NULL route """
1764 p = (Ether(src=self.pg0.remote_mac,
1765 dst=self.pg0.local_mac) /
1766 IPv6(src=self.pg0.remote_ip6, dst="2001::1") /
1767 inet6.UDP(sport=1234, dport=1234) /
1771 # A route via IP NULL that will reply with ICMP unreachables
1773 ip_unreach = VppIpRoute(
1775 [VppRoutePath("::", 0xffffffff,
1776 type=FibPathType.FIB_PATH_TYPE_ICMP_UNREACH)])
1777 ip_unreach.add_vpp_config()
1779 self.pg0.add_stream(p)
1780 self.pg_enable_capture(self.pg_interfaces)
1783 rx = self.pg0.get_capture(1)
1785 icmp = rx[ICMPv6DestUnreach]
1787 # 0 = "No route to destination"
1788 self.assertEqual(icmp.code, 0)
1790 # ICMP is rate limited. pause a bit
1794 # A route via IP NULL that will reply with ICMP prohibited
1796 ip_prohibit = VppIpRoute(
1797 self, "2001::1", 128,
1798 [VppRoutePath("::", 0xffffffff,
1799 type=FibPathType.FIB_PATH_TYPE_ICMP_PROHIBIT)])
1800 ip_prohibit.add_vpp_config()
1802 self.pg0.add_stream(p)
1803 self.pg_enable_capture(self.pg_interfaces)
1806 rx = self.pg0.get_capture(1)
1808 icmp = rx[ICMPv6DestUnreach]
1810 # 1 = "Communication with destination administratively prohibited"
1811 self.assertEqual(icmp.code, 1)
1814 class TestIPDisabled(VppTestCase):
1815 """ IPv6 disabled """
1818 def setUpClass(cls):
1819 super(TestIPDisabled, cls).setUpClass()
1822 def tearDownClass(cls):
1823 super(TestIPDisabled, cls).tearDownClass()
1826 super(TestIPDisabled, self).setUp()
1828 # create 2 pg interfaces
1829 self.create_pg_interfaces(range(2))
1833 self.pg0.config_ip6()
1834 self.pg0.resolve_ndp()
1836 # PG 1 is not IP enabled
1840 super(TestIPDisabled, self).tearDown()
1841 for i in self.pg_interfaces:
1845 def test_ip_disabled(self):
1850 # one accepting interface, pg0, 2 forwarding interfaces
1852 route_ff_01 = VppIpMRoute(
1856 MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
1857 [VppMRoutePath(self.pg1.sw_if_index,
1858 MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
1859 VppMRoutePath(self.pg0.sw_if_index,
1860 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
1861 route_ff_01.add_vpp_config()
1863 pu = (Ether(src=self.pg1.remote_mac,
1864 dst=self.pg1.local_mac) /
1865 IPv6(src="2001::1", dst=self.pg0.remote_ip6) /
1866 inet6.UDP(sport=1234, dport=1234) /
1868 pm = (Ether(src=self.pg1.remote_mac,
1869 dst=self.pg1.local_mac) /
1870 IPv6(src="2001::1", dst="ffef::1") /
1871 inet6.UDP(sport=1234, dport=1234) /
1875 # PG1 does not forward IP traffic
1877 self.send_and_assert_no_replies(self.pg1, pu, "IPv6 disabled")
1878 self.send_and_assert_no_replies(self.pg1, pm, "IPv6 disabled")
1883 self.pg1.config_ip6()
1886 # Now we get packets through
1888 self.pg1.add_stream(pu)
1889 self.pg_enable_capture(self.pg_interfaces)
1891 rx = self.pg0.get_capture(1)
1893 self.pg1.add_stream(pm)
1894 self.pg_enable_capture(self.pg_interfaces)
1896 rx = self.pg0.get_capture(1)
1901 self.pg1.unconfig_ip6()
1904 # PG1 does not forward IP traffic
1906 self.send_and_assert_no_replies(self.pg1, pu, "IPv6 disabled")
1907 self.send_and_assert_no_replies(self.pg1, pm, "IPv6 disabled")
1910 class TestIP6LoadBalance(VppTestCase):
1911 """ IPv6 Load-Balancing """
1914 def setUpClass(cls):
1915 super(TestIP6LoadBalance, cls).setUpClass()
1918 def tearDownClass(cls):
1919 super(TestIP6LoadBalance, cls).tearDownClass()
1922 super(TestIP6LoadBalance, self).setUp()
1924 self.create_pg_interfaces(range(5))
1926 mpls_tbl = VppMplsTable(self, 0)
1927 mpls_tbl.add_vpp_config()
1929 for i in self.pg_interfaces:
1936 for i in self.pg_interfaces:
1940 super(TestIP6LoadBalance, self).tearDown()
1942 def pg_send(self, input, pkts):
1943 self.vapi.cli("clear trace")
1944 input.add_stream(pkts)
1945 self.pg_enable_capture(self.pg_interfaces)
1948 def send_and_expect_load_balancing(self, input, pkts, outputs):
1949 self.pg_send(input, pkts)
1951 rx = oo._get_capture(1)
1952 self.assertNotEqual(0, len(rx))
1954 def send_and_expect_one_itf(self, input, pkts, itf):
1955 self.pg_send(input, pkts)
1956 rx = itf.get_capture(len(pkts))
1958 def test_ip6_load_balance(self):
1959 """ IPv6 Load-Balancing """
1962 # An array of packets that differ only in the destination port
1966 # - MPLS non-EOS with an entropy label
1970 port_mpls_neos_pkts = []
1974 # An array of packets that differ only in the source address
1979 for ii in range(NUM_PKTS):
1981 IPv6(dst="3000::1", src="3000:1::1") /
1982 inet6.UDP(sport=1234, dport=1234 + ii) /
1984 port_ip_pkts.append((Ether(src=self.pg0.remote_mac,
1985 dst=self.pg0.local_mac) /
1987 port_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
1988 dst=self.pg0.local_mac) /
1989 MPLS(label=66, ttl=2) /
1991 port_mpls_neos_pkts.append((Ether(src=self.pg0.remote_mac,
1992 dst=self.pg0.local_mac) /
1993 MPLS(label=67, ttl=2) /
1994 MPLS(label=77, ttl=2) /
1996 port_ent_pkts.append((Ether(src=self.pg0.remote_mac,
1997 dst=self.pg0.local_mac) /
1998 MPLS(label=67, ttl=2) /
1999 MPLS(label=14, ttl=2) /
2000 MPLS(label=999, ttl=2) /
2003 IPv6(dst="3000::1", src="3000:1::%d" % ii) /
2004 inet6.UDP(sport=1234, dport=1234) /
2006 src_ip_pkts.append((Ether(src=self.pg0.remote_mac,
2007 dst=self.pg0.local_mac) /
2009 src_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
2010 dst=self.pg0.local_mac) /
2011 MPLS(label=66, ttl=2) /
2015 # A route for the IP packets
2017 route_3000_1 = VppIpRoute(self, "3000::1", 128,
2018 [VppRoutePath(self.pg1.remote_ip6,
2019 self.pg1.sw_if_index),
2020 VppRoutePath(self.pg2.remote_ip6,
2021 self.pg2.sw_if_index)])
2022 route_3000_1.add_vpp_config()
2025 # a local-label for the EOS packets
2027 binding = VppMplsIpBind(self, 66, "3000::1", 128, is_ip6=1)
2028 binding.add_vpp_config()
2031 # An MPLS route for the non-EOS packets
2033 route_67 = VppMplsRoute(self, 67, 0,
2034 [VppRoutePath(self.pg1.remote_ip6,
2035 self.pg1.sw_if_index,
2037 VppRoutePath(self.pg2.remote_ip6,
2038 self.pg2.sw_if_index,
2040 route_67.add_vpp_config()
2043 # inject the packet on pg0 - expect load-balancing across the 2 paths
2044 # - since the default hash config is to use IP src,dst and port
2046 # We are not going to ensure equal amounts of packets across each link,
2047 # since the hash algorithm is statistical and therefore this can never
2048 # be guaranteed. But with 64 different packets we do expect some
2049 # balancing. So instead just ensure there is traffic on each link.
2051 self.send_and_expect_load_balancing(self.pg0, port_ip_pkts,
2052 [self.pg1, self.pg2])
2053 self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
2054 [self.pg1, self.pg2])
2055 self.send_and_expect_load_balancing(self.pg0, port_mpls_pkts,
2056 [self.pg1, self.pg2])
2057 self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
2058 [self.pg1, self.pg2])
2059 self.send_and_expect_load_balancing(self.pg0, port_mpls_neos_pkts,
2060 [self.pg1, self.pg2])
2063 # The packets with Entropy label in should not load-balance,
2064 # since the Entropy value is fixed.
2066 self.send_and_expect_one_itf(self.pg0, port_ent_pkts, self.pg1)
2069 # change the flow hash config so it's only IP src,dst
2070 # - now only the stream with differing source address will
2073 self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, sport=0, dport=0,
2076 self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
2077 [self.pg1, self.pg2])
2078 self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
2079 [self.pg1, self.pg2])
2080 self.send_and_expect_one_itf(self.pg0, port_ip_pkts, self.pg2)
2083 # change the flow hash config back to defaults
2085 self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, sport=1, dport=1,
2089 # Recursive prefixes
2090 # - testing that 2 stages of load-balancing occurs and there is no
2091 # polarisation (i.e. only 2 of 4 paths are used)
2096 for ii in range(257):
2097 port_pkts.append((Ether(src=self.pg0.remote_mac,
2098 dst=self.pg0.local_mac) /
2101 inet6.UDP(sport=1234,
2103 Raw(b'\xa5' * 100)))
2104 src_pkts.append((Ether(src=self.pg0.remote_mac,
2105 dst=self.pg0.local_mac) /
2107 src="4000:1::%d" % ii) /
2108 inet6.UDP(sport=1234, dport=1234) /
2109 Raw(b'\xa5' * 100)))
2111 route_3000_2 = VppIpRoute(self, "3000::2", 128,
2112 [VppRoutePath(self.pg3.remote_ip6,
2113 self.pg3.sw_if_index),
2114 VppRoutePath(self.pg4.remote_ip6,
2115 self.pg4.sw_if_index)])
2116 route_3000_2.add_vpp_config()
2118 route_4000_1 = VppIpRoute(self, "4000::1", 128,
2119 [VppRoutePath("3000::1",
2121 VppRoutePath("3000::2",
2123 route_4000_1.add_vpp_config()
2126 # inject the packet on pg0 - expect load-balancing across all 4 paths
2128 self.vapi.cli("clear trace")
2129 self.send_and_expect_load_balancing(self.pg0, port_pkts,
2130 [self.pg1, self.pg2,
2131 self.pg3, self.pg4])
2132 self.send_and_expect_load_balancing(self.pg0, src_pkts,
2133 [self.pg1, self.pg2,
2134 self.pg3, self.pg4])
2137 # Recursive prefixes
2138 # - testing that 2 stages of load-balancing no choices
2142 for ii in range(257):
2143 port_pkts.append((Ether(src=self.pg0.remote_mac,
2144 dst=self.pg0.local_mac) /
2147 inet6.UDP(sport=1234,
2149 Raw(b'\xa5' * 100)))
2151 route_5000_2 = VppIpRoute(self, "5000::2", 128,
2152 [VppRoutePath(self.pg3.remote_ip6,
2153 self.pg3.sw_if_index)])
2154 route_5000_2.add_vpp_config()
2156 route_6000_1 = VppIpRoute(self, "6000::1", 128,
2157 [VppRoutePath("5000::2",
2159 route_6000_1.add_vpp_config()
2162 # inject the packet on pg0 - expect load-balancing across all 4 paths
2164 self.vapi.cli("clear trace")
2165 self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg3)
2168 class TestIP6Punt(VppTestCase):
2169 """ IPv6 Punt Police/Redirect """
2172 def setUpClass(cls):
2173 super(TestIP6Punt, cls).setUpClass()
2176 def tearDownClass(cls):
2177 super(TestIP6Punt, cls).tearDownClass()
2180 super(TestIP6Punt, self).setUp()
2182 self.create_pg_interfaces(range(4))
2184 for i in self.pg_interfaces:
2190 super(TestIP6Punt, self).tearDown()
2191 for i in self.pg_interfaces:
2195 def test_ip_punt(self):
2196 """ IP6 punt police and redirect """
2198 p = (Ether(src=self.pg0.remote_mac,
2199 dst=self.pg0.local_mac) /
2200 IPv6(src=self.pg0.remote_ip6,
2201 dst=self.pg0.local_ip6) /
2202 inet6.TCP(sport=1234, dport=1234) /
2208 # Configure a punt redirect via pg1.
2210 nh_addr = self.pg1.remote_ip6
2211 self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
2212 self.pg1.sw_if_index,
2215 self.send_and_expect(self.pg0, pkts, self.pg1)
2220 policer = VppPolicer(self, "ip6-punt", 400, 0, 10, 0, rate_type=1)
2221 policer.add_vpp_config()
2222 self.vapi.ip_punt_police(policer.policer_index, is_ip6=1)
2224 self.vapi.cli("clear trace")
2225 self.pg0.add_stream(pkts)
2226 self.pg_enable_capture(self.pg_interfaces)
2230 # the number of packet received should be greater than 0,
2231 # but not equal to the number sent, since some were policed
2233 rx = self.pg1._get_capture(1)
2234 self.assertGreater(len(rx), 0)
2235 self.assertLess(len(rx), len(pkts))
2238 # remove the policer. back to full rx
2240 self.vapi.ip_punt_police(policer.policer_index, is_add=0, is_ip6=1)
2241 policer.remove_vpp_config()
2242 self.send_and_expect(self.pg0, pkts, self.pg1)
2245 # remove the redirect. expect full drop.
2247 self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
2248 self.pg1.sw_if_index,
2251 self.send_and_assert_no_replies(self.pg0, pkts,
2252 "IP no punt config")
2255 # Add a redirect that is not input port selective
2257 self.vapi.ip_punt_redirect(0xffffffff,
2258 self.pg1.sw_if_index,
2260 self.send_and_expect(self.pg0, pkts, self.pg1)
2262 self.vapi.ip_punt_redirect(0xffffffff,
2263 self.pg1.sw_if_index,
2267 def test_ip_punt_dump(self):
2268 """ IP6 punt redirect dump"""
2271 # Configure a punt redirects
2273 nh_addr = self.pg3.remote_ip6
2274 self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
2275 self.pg3.sw_if_index,
2277 self.vapi.ip_punt_redirect(self.pg1.sw_if_index,
2278 self.pg3.sw_if_index,
2280 self.vapi.ip_punt_redirect(self.pg2.sw_if_index,
2281 self.pg3.sw_if_index,
2285 # Dump pg0 punt redirects
2287 punts = self.vapi.ip_punt_redirect_dump(self.pg0.sw_if_index,
2290 self.assertEqual(p.punt.rx_sw_if_index, self.pg0.sw_if_index)
2293 # Dump punt redirects for all interfaces
2295 punts = self.vapi.ip_punt_redirect_dump(0xffffffff, is_ipv6=1)
2296 self.assertEqual(len(punts), 3)
2298 self.assertEqual(p.punt.tx_sw_if_index, self.pg3.sw_if_index)
2299 self.assertNotEqual(punts[1].punt.nh, self.pg3.remote_ip6)
2300 self.assertEqual(str(punts[2].punt.nh), '::')
2303 class TestIPDeag(VppTestCase):
2304 """ IPv6 Deaggregate Routes """
2307 def setUpClass(cls):
2308 super(TestIPDeag, cls).setUpClass()
2311 def tearDownClass(cls):
2312 super(TestIPDeag, cls).tearDownClass()
2315 super(TestIPDeag, self).setUp()
2317 self.create_pg_interfaces(range(3))
2319 for i in self.pg_interfaces:
2325 super(TestIPDeag, self).tearDown()
2326 for i in self.pg_interfaces:
2330 def test_ip_deag(self):
2331 """ IP Deag Routes """
2334 # Create a table to be used for:
2335 # 1 - another destination address lookup
2336 # 2 - a source address lookup
2338 table_dst = VppIpTable(self, 1, is_ip6=1)
2339 table_src = VppIpTable(self, 2, is_ip6=1)
2340 table_dst.add_vpp_config()
2341 table_src.add_vpp_config()
2344 # Add a route in the default table to point to a deag/
2345 # second lookup in each of these tables
2347 route_to_dst = VppIpRoute(self, "1::1", 128,
2351 route_to_src = VppIpRoute(
2356 type=FibPathType.FIB_PATH_TYPE_SOURCE_LOOKUP)])
2358 route_to_dst.add_vpp_config()
2359 route_to_src.add_vpp_config()
2362 # packets to these destination are dropped, since they'll
2363 # hit the respective default routes in the second table
2365 p_dst = (Ether(src=self.pg0.remote_mac,
2366 dst=self.pg0.local_mac) /
2367 IPv6(src="5::5", dst="1::1") /
2368 inet6.TCP(sport=1234, dport=1234) /
2370 p_src = (Ether(src=self.pg0.remote_mac,
2371 dst=self.pg0.local_mac) /
2372 IPv6(src="2::2", dst="1::2") /
2373 inet6.TCP(sport=1234, dport=1234) /
2375 pkts_dst = p_dst * 257
2376 pkts_src = p_src * 257
2378 self.send_and_assert_no_replies(self.pg0, pkts_dst,
2380 self.send_and_assert_no_replies(self.pg0, pkts_src,
2384 # add a route in the dst table to forward via pg1
2386 route_in_dst = VppIpRoute(self, "1::1", 128,
2387 [VppRoutePath(self.pg1.remote_ip6,
2388 self.pg1.sw_if_index)],
2390 route_in_dst.add_vpp_config()
2392 self.send_and_expect(self.pg0, pkts_dst, self.pg1)
2395 # add a route in the src table to forward via pg2
2397 route_in_src = VppIpRoute(self, "2::2", 128,
2398 [VppRoutePath(self.pg2.remote_ip6,
2399 self.pg2.sw_if_index)],
2401 route_in_src.add_vpp_config()
2402 self.send_and_expect(self.pg0, pkts_src, self.pg2)
2405 # loop in the lookup DP
2407 route_loop = VppIpRoute(self, "3::3", 128,
2410 route_loop.add_vpp_config()
2412 p_l = (Ether(src=self.pg0.remote_mac,
2413 dst=self.pg0.local_mac) /
2414 IPv6(src="3::4", dst="3::3") /
2415 inet6.TCP(sport=1234, dport=1234) /
2418 self.send_and_assert_no_replies(self.pg0, p_l * 257,
2422 class TestIP6Input(VppTestCase):
2423 """ IPv6 Input Exception Test Cases """
2426 def setUpClass(cls):
2427 super(TestIP6Input, cls).setUpClass()
2430 def tearDownClass(cls):
2431 super(TestIP6Input, cls).tearDownClass()
2434 super(TestIP6Input, self).setUp()
2436 self.create_pg_interfaces(range(2))
2438 for i in self.pg_interfaces:
2444 super(TestIP6Input, self).tearDown()
2445 for i in self.pg_interfaces:
2449 def test_ip_input_icmp_reply(self):
2450 """ IP6 Input Exception - Return ICMP (3,0) """
2452 # hop limit - ICMP replies
2454 p_version = (Ether(src=self.pg0.remote_mac,
2455 dst=self.pg0.local_mac) /
2456 IPv6(src=self.pg0.remote_ip6,
2457 dst=self.pg1.remote_ip6,
2459 inet6.UDP(sport=1234, dport=1234) /
2462 rx = self.send_and_expect(self.pg0, p_version * NUM_PKTS, self.pg0)
2464 icmp = rx[ICMPv6TimeExceeded]
2466 # 0: "hop limit exceeded in transit",
2467 self.assertEqual((icmp.type, icmp.code), (3, 0))
2469 icmpv6_data = '\x0a' * 18
2471 all_1s = "FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF"
2473 @parameterized.expand([
2474 # Name, src, dst, l4proto, msg, timeout
2475 ("src='iface', dst='iface'", None, None,
2476 inet6.UDP(sport=1234, dport=1234), "funky version", None),
2477 ("src='All 0's', dst='iface'", all_0s, None,
2478 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2479 ("src='iface', dst='All 0's'", None, all_0s,
2480 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2481 ("src='All 1's', dst='iface'", all_1s, None,
2482 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2483 ("src='iface', dst='All 1's'", None, all_1s,
2484 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2485 ("src='All 1's', dst='All 1's'", all_1s, all_1s,
2486 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2489 def test_ip_input_no_replies(self, name, src, dst, l4, msg, timeout):
2491 self._testMethodDoc = 'IPv6 Input Exception - %s' % name
2493 p_version = (Ether(src=self.pg0.remote_mac,
2494 dst=self.pg0.local_mac) /
2495 IPv6(src=src or self.pg0.remote_ip6,
2496 dst=dst or self.pg1.remote_ip6,
2501 self.send_and_assert_no_replies(self.pg0, p_version * NUM_PKTS,
2505 def test_hop_by_hop(self):
2506 """ Hop-by-hop header test """
2508 p = (Ether(src=self.pg0.remote_mac,
2509 dst=self.pg0.local_mac) /
2510 IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6) /
2511 IPv6ExtHdrHopByHop() /
2512 inet6.UDP(sport=1234, dport=1234) /
2515 self.pg0.add_stream(p)
2516 self.pg_enable_capture(self.pg_interfaces)
2520 class TestIPReplace(VppTestCase):
2521 """ IPv6 Table Replace """
2524 def setUpClass(cls):
2525 super(TestIPReplace, cls).setUpClass()
2528 def tearDownClass(cls):
2529 super(TestIPReplace, cls).tearDownClass()
2532 super(TestIPReplace, self).setUp()
2534 self.create_pg_interfaces(range(4))
2539 for i in self.pg_interfaces:
2542 i.generate_remote_hosts(2)
2543 self.tables.append(VppIpTable(self, table_id,
2544 True).add_vpp_config())
2548 super(TestIPReplace, self).tearDown()
2549 for i in self.pg_interfaces:
2553 def test_replace(self):
2554 """ IP Table Replace """
2557 links = [self.pg0, self.pg1, self.pg2, self.pg3]
2558 routes = [[], [], [], []]
2560 # the sizes of 'empty' tables
2561 for t in self.tables:
2562 self.assertEqual(len(t.dump()), 2)
2563 self.assertEqual(len(t.mdump()), 5)
2565 # load up the tables with some routes
2566 for ii, t in enumerate(self.tables):
2567 for jj in range(1, N_ROUTES):
2569 self, "2001::%d" % jj if jj != 0 else "2001::", 128,
2570 [VppRoutePath(links[ii].remote_hosts[0].ip6,
2571 links[ii].sw_if_index),
2572 VppRoutePath(links[ii].remote_hosts[1].ip6,
2573 links[ii].sw_if_index)],
2574 table_id=t.table_id).add_vpp_config()
2575 multi = VppIpMRoute(
2577 "ff:2001::%d" % jj, 128,
2578 MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
2579 [VppMRoutePath(self.pg0.sw_if_index,
2580 MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT,
2581 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
2582 VppMRoutePath(self.pg1.sw_if_index,
2583 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
2584 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
2585 VppMRoutePath(self.pg2.sw_if_index,
2586 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
2587 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
2588 VppMRoutePath(self.pg3.sw_if_index,
2589 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
2590 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6)],
2591 table_id=t.table_id).add_vpp_config()
2592 routes[ii].append({'uni': uni,
2596 # replace the tables a few times
2599 # replace each table
2600 for t in self.tables:
2603 # all the routes are still there
2604 for ii, t in enumerate(self.tables):
2607 for r in routes[ii]:
2608 self.assertTrue(find_route_in_dump(dump, r['uni'], t))
2609 self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
2611 # redownload the even numbered routes
2612 for ii, t in enumerate(self.tables):
2613 for jj in range(0, N_ROUTES, 2):
2614 routes[ii][jj]['uni'].add_vpp_config()
2615 routes[ii][jj]['multi'].add_vpp_config()
2617 # signal each table converged
2618 for t in self.tables:
2621 # we should find the even routes, but not the odd
2622 for ii, t in enumerate(self.tables):
2625 for jj in range(0, N_ROUTES, 2):
2626 self.assertTrue(find_route_in_dump(
2627 dump, routes[ii][jj]['uni'], t))
2628 self.assertTrue(find_mroute_in_dump(
2629 mdump, routes[ii][jj]['multi'], t))
2630 for jj in range(1, N_ROUTES - 1, 2):
2631 self.assertFalse(find_route_in_dump(
2632 dump, routes[ii][jj]['uni'], t))
2633 self.assertFalse(find_mroute_in_dump(
2634 mdump, routes[ii][jj]['multi'], t))
2636 # reload all the routes
2637 for ii, t in enumerate(self.tables):
2638 for r in routes[ii]:
2639 r['uni'].add_vpp_config()
2640 r['multi'].add_vpp_config()
2642 # all the routes are still there
2643 for ii, t in enumerate(self.tables):
2646 for r in routes[ii]:
2647 self.assertTrue(find_route_in_dump(dump, r['uni'], t))
2648 self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
2651 # finally flush the tables for good measure
2653 for t in self.tables:
2655 self.assertEqual(len(t.dump()), 2)
2656 self.assertEqual(len(t.mdump()), 5)
2659 class TestIP6Replace(VppTestCase):
2660 """ IPv4 Interface Address Replace """
2663 def setUpClass(cls):
2664 super(TestIP6Replace, cls).setUpClass()
2667 def tearDownClass(cls):
2668 super(TestIP6Replace, cls).tearDownClass()
2671 super(TestIP6Replace, self).setUp()
2673 self.create_pg_interfaces(range(4))
2675 for i in self.pg_interfaces:
2679 super(TestIP6Replace, self).tearDown()
2680 for i in self.pg_interfaces:
2683 def get_n_pfxs(self, intf):
2684 return len(self.vapi.ip_address_dump(intf.sw_if_index, True))
2686 def test_replace(self):
2687 """ IP interface address replace """
2689 intf_pfxs = [[], [], [], []]
2691 # add prefixes to each of the interfaces
2692 for i in range(len(self.pg_interfaces)):
2693 intf = self.pg_interfaces[i]
2696 addr = "2001:16:%d::1" % intf.sw_if_index
2697 a = VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
2698 intf_pfxs[i].append(a)
2700 # 2001:16:x::2/64 - a different address in the same subnet as above
2701 addr = "2001:16:%d::2" % intf.sw_if_index
2702 a = VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
2703 intf_pfxs[i].append(a)
2705 # 2001:15:x::2/64 - a different address and subnet
2706 addr = "2001:15:%d::2" % intf.sw_if_index
2707 a = VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
2708 intf_pfxs[i].append(a)
2710 # a dump should n_address in it
2711 for intf in self.pg_interfaces:
2712 self.assertEqual(self.get_n_pfxs(intf), 3)
2715 # remove all the address thru a replace
2717 self.vapi.sw_interface_address_replace_begin()
2718 self.vapi.sw_interface_address_replace_end()
2719 for intf in self.pg_interfaces:
2720 self.assertEqual(self.get_n_pfxs(intf), 0)
2723 # add all the interface addresses back
2728 for intf in self.pg_interfaces:
2729 self.assertEqual(self.get_n_pfxs(intf), 3)
2732 # replace again, but this time update/re-add the address on the first
2735 self.vapi.sw_interface_address_replace_begin()
2737 for p in intf_pfxs[:2]:
2741 self.vapi.sw_interface_address_replace_end()
2743 # on the first two the address still exist,
2744 # on the other two they do not
2745 for intf in self.pg_interfaces[:2]:
2746 self.assertEqual(self.get_n_pfxs(intf), 3)
2747 for p in intf_pfxs[:2]:
2749 self.assertTrue(v.query_vpp_config())
2750 for intf in self.pg_interfaces[2:]:
2751 self.assertEqual(self.get_n_pfxs(intf), 0)
2754 # add all the interface addresses back on the last two
2756 for p in intf_pfxs[2:]:
2759 for intf in self.pg_interfaces:
2760 self.assertEqual(self.get_n_pfxs(intf), 3)
2763 # replace again, this time add different prefixes on all the interfaces
2765 self.vapi.sw_interface_address_replace_begin()
2768 for intf in self.pg_interfaces:
2770 addr = "2001:18:%d::1" % intf.sw_if_index
2771 pfxs.append(VppIpInterfaceAddress(self, intf, addr,
2772 64).add_vpp_config())
2774 self.vapi.sw_interface_address_replace_end()
2776 # only .18 should exist on each interface
2777 for intf in self.pg_interfaces:
2778 self.assertEqual(self.get_n_pfxs(intf), 1)
2780 self.assertTrue(pfx.query_vpp_config())
2785 self.vapi.sw_interface_address_replace_begin()
2786 self.vapi.sw_interface_address_replace_end()
2787 for intf in self.pg_interfaces:
2788 self.assertEqual(self.get_n_pfxs(intf), 0)
2791 # add prefixes to each interface. post-begin add the prefix from
2792 # interface X onto interface Y. this would normally be an error
2793 # since it would generate a 'duplicate address' warning. but in
2794 # this case, since what is newly downloaded is sane, it's ok
2796 for intf in self.pg_interfaces:
2798 addr = "2001:18:%d::1" % intf.sw_if_index
2799 VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
2801 self.vapi.sw_interface_address_replace_begin()
2804 for intf in self.pg_interfaces:
2806 addr = "2001:18:%d::1" % (intf.sw_if_index + 1)
2807 pfxs.append(VppIpInterfaceAddress(self, intf,
2808 addr, 64).add_vpp_config())
2810 self.vapi.sw_interface_address_replace_end()
2812 self.logger.info(self.vapi.cli("sh int addr"))
2814 for intf in self.pg_interfaces:
2815 self.assertEqual(self.get_n_pfxs(intf), 1)
2817 self.assertTrue(pfx.query_vpp_config())
2820 class TestIP6LinkLocal(VppTestCase):
2821 """ IPv6 Link Local """
2824 def setUpClass(cls):
2825 super(TestIP6LinkLocal, cls).setUpClass()
2828 def tearDownClass(cls):
2829 super(TestIP6LinkLocal, cls).tearDownClass()
2832 super(TestIP6LinkLocal, self).setUp()
2834 self.create_pg_interfaces(range(2))
2836 for i in self.pg_interfaces:
2840 super(TestIP6LinkLocal, self).tearDown()
2841 for i in self.pg_interfaces:
2844 def test_ip6_ll(self):
2845 """ IPv6 Link Local """
2848 # two APIs to add a link local address.
2849 # 1 - just like any other prefix
2850 # 2 - with the special set LL API
2854 # First with the API to set a 'normal' prefix
2860 VppIpInterfaceAddress(self, self.pg0, ll1, 128).add_vpp_config()
2863 # should be able to ping the ll
2865 p_echo_request_1 = (Ether(src=self.pg0.remote_mac,
2866 dst=self.pg0.local_mac) /
2869 ICMPv6EchoRequest())
2871 self.send_and_expect(self.pg0, [p_echo_request_1], self.pg0)
2874 # change the link-local on pg0
2876 v_ll3 = VppIpInterfaceAddress(self, self.pg0,
2877 ll3, 128).add_vpp_config()
2879 p_echo_request_3 = (Ether(src=self.pg0.remote_mac,
2880 dst=self.pg0.local_mac) /
2883 ICMPv6EchoRequest())
2885 self.send_and_expect(self.pg0, [p_echo_request_3], self.pg0)
2888 # set a normal v6 prefix on the link
2890 self.pg0.config_ip6()
2892 self.send_and_expect(self.pg0, [p_echo_request_3], self.pg0)
2894 # the link-local cannot be removed
2895 with self.vapi.assert_negative_api_retval():
2896 v_ll3.remove_vpp_config()
2899 # Use the specific link-local API on pg1
2901 VppIp6LinkLocalAddress(self, self.pg1, ll1).add_vpp_config()
2902 self.send_and_expect(self.pg1, [p_echo_request_1], self.pg1)
2904 VppIp6LinkLocalAddress(self, self.pg1, ll3).add_vpp_config()
2905 self.send_and_expect(self.pg1, [p_echo_request_3], self.pg1)
2908 if __name__ == '__main__':
2909 unittest.main(testRunner=VppTestRunner)