3 from socket import inet_pton, inet_ntop
6 from parameterized import parameterized
8 import scapy.layers.inet6 as inet6
9 from scapy.contrib.mpls import MPLS
10 from scapy.layers.inet6 import IPv6, ICMPv6ND_NS, ICMPv6ND_RS, \
11 ICMPv6ND_RA, ICMPv6NDOptMTU, ICMPv6NDOptSrcLLAddr, ICMPv6NDOptPrefixInfo, \
12 ICMPv6ND_NA, ICMPv6NDOptDstLLAddr, ICMPv6DestUnreach, icmp6types, \
13 ICMPv6TimeExceeded, ICMPv6EchoRequest, ICMPv6EchoReply, IPv6ExtHdrHopByHop
14 from scapy.layers.l2 import Ether, Dot1Q
15 from scapy.packet import Raw
16 from scapy.utils6 import in6_getnsma, in6_getnsmac, in6_ptop, in6_islladdr, \
20 from framework import VppTestCase, VppTestRunner
21 from util import ppp, ip6_normalize, mk_ll_addr
22 from vpp_ip import DpoProto
23 from vpp_ip_route import VppIpRoute, VppRoutePath, find_route, VppIpMRoute, \
24 VppMRoutePath, MRouteItfFlags, MRouteEntryFlags, VppMplsIpBind, \
25 VppMplsRoute, VppMplsTable, VppIpTable, FibPathType, FibPathProto, \
26 VppIpInterfaceAddress, find_route_in_dump, find_mroute_in_dump
27 from vpp_neighbor import find_nbr, VppNeighbor
28 from vpp_pg_interface import is_ipv6_misc
29 from vpp_sub_interface import VppSubInterface, VppDot1QSubint
30 from ipaddress import IPv6Network, IPv6Address
32 AF_INET6 = socket.AF_INET6
42 class TestIPv6ND(VppTestCase):
43 def validate_ra(self, intf, rx, dst_ip=None):
45 dst_ip = intf.remote_ip6
47 # unicasted packets must come to the unicast mac
48 self.assertEqual(rx[Ether].dst, intf.remote_mac)
50 # and from the router's MAC
51 self.assertEqual(rx[Ether].src, intf.local_mac)
53 # the rx'd RA should be addressed to the sender's source
54 self.assertTrue(rx.haslayer(ICMPv6ND_RA))
55 self.assertEqual(in6_ptop(rx[IPv6].dst),
58 # and come from the router's link local
59 self.assertTrue(in6_islladdr(rx[IPv6].src))
60 self.assertEqual(in6_ptop(rx[IPv6].src),
61 in6_ptop(mk_ll_addr(intf.local_mac)))
63 def validate_na(self, intf, rx, dst_ip=None, tgt_ip=None):
65 dst_ip = intf.remote_ip6
67 dst_ip = intf.local_ip6
69 # unicasted packets must come to the unicast mac
70 self.assertEqual(rx[Ether].dst, intf.remote_mac)
72 # and from the router's MAC
73 self.assertEqual(rx[Ether].src, intf.local_mac)
75 # the rx'd NA should be addressed to the sender's source
76 self.assertTrue(rx.haslayer(ICMPv6ND_NA))
77 self.assertEqual(in6_ptop(rx[IPv6].dst),
80 # and come from the target address
82 in6_ptop(rx[IPv6].src), in6_ptop(tgt_ip))
84 # Dest link-layer options should have the router's MAC
85 dll = rx[ICMPv6NDOptDstLLAddr]
86 self.assertEqual(dll.lladdr, intf.local_mac)
88 def validate_ns(self, intf, rx, tgt_ip):
89 nsma = in6_getnsma(inet_pton(AF_INET6, tgt_ip))
90 dst_ip = inet_ntop(AF_INET6, nsma)
93 self.assertEqual(rx[Ether].dst, in6_getnsmac(nsma))
95 # and from the router's MAC
96 self.assertEqual(rx[Ether].src, intf.local_mac)
98 # the rx'd NS should be addressed to an mcast address
99 # derived from the target address
101 in6_ptop(rx[IPv6].dst), in6_ptop(dst_ip))
103 # expect the tgt IP in the NS header
105 self.assertEqual(in6_ptop(ns.tgt), in6_ptop(tgt_ip))
107 # packet is from the router's local address
109 in6_ptop(rx[IPv6].src), intf.local_ip6)
111 # Src link-layer options should have the router's MAC
112 sll = rx[ICMPv6NDOptSrcLLAddr]
113 self.assertEqual(sll.lladdr, intf.local_mac)
115 def send_and_expect_ra(self, intf, pkts, remark, dst_ip=None,
116 filter_out_fn=is_ipv6_misc):
117 intf.add_stream(pkts)
118 self.pg_enable_capture(self.pg_interfaces)
120 rx = intf.get_capture(1, filter_out_fn=filter_out_fn)
122 self.assertEqual(len(rx), 1)
124 self.validate_ra(intf, rx, dst_ip)
126 def send_and_expect_na(self, intf, pkts, remark, dst_ip=None,
128 filter_out_fn=is_ipv6_misc):
129 intf.add_stream(pkts)
130 self.pg_enable_capture(self.pg_interfaces)
132 rx = intf.get_capture(1, filter_out_fn=filter_out_fn)
134 self.assertEqual(len(rx), 1)
136 self.validate_na(intf, rx, dst_ip, tgt_ip)
138 def send_and_expect_ns(self, tx_intf, rx_intf, pkts, tgt_ip,
139 filter_out_fn=is_ipv6_misc):
140 tx_intf.add_stream(pkts)
141 self.pg_enable_capture(self.pg_interfaces)
143 rx = rx_intf.get_capture(1, filter_out_fn=filter_out_fn)
145 self.assertEqual(len(rx), 1)
147 self.validate_ns(rx_intf, rx, tgt_ip)
149 def verify_ip(self, rx, smac, dmac, sip, dip):
151 self.assertEqual(ether.dst, dmac)
152 self.assertEqual(ether.src, smac)
155 self.assertEqual(ip.src, sip)
156 self.assertEqual(ip.dst, dip)
159 class TestIPv6(TestIPv6ND):
160 """ IPv6 Test Case """
164 super(TestIPv6, cls).setUpClass()
167 def tearDownClass(cls):
168 super(TestIPv6, cls).tearDownClass()
172 Perform test setup before test case.
175 - create 3 pg interfaces
176 - untagged pg0 interface
177 - Dot1Q subinterface on pg1
178 - Dot1AD subinterface on pg2
180 - put it into UP state
182 - resolve neighbor address using NDP
183 - configure 200 fib entries
185 :ivar list interfaces: pg interfaces and subinterfaces.
186 :ivar dict flows: IPv4 packet flows in test.
188 *TODO:* Create AD sub interface
190 super(TestIPv6, self).setUp()
192 # create 3 pg interfaces
193 self.create_pg_interfaces(range(3))
195 # create 2 subinterfaces for p1 and pg2
196 self.sub_interfaces = [
197 VppDot1QSubint(self, self.pg1, 100),
198 VppDot1QSubint(self, self.pg2, 200)
199 # TODO: VppDot1ADSubint(self, self.pg2, 200, 300, 400)
202 # packet flows mapping pg0 -> pg1.sub, pg2.sub, etc.
204 self.flows[self.pg0] = [self.pg1.sub_if, self.pg2.sub_if]
205 self.flows[self.pg1.sub_if] = [self.pg0, self.pg2.sub_if]
206 self.flows[self.pg2.sub_if] = [self.pg0, self.pg1.sub_if]
209 self.pg_if_packet_sizes = [64, 1500, 9020]
211 self.interfaces = list(self.pg_interfaces)
212 self.interfaces.extend(self.sub_interfaces)
214 # setup all interfaces
215 for i in self.interfaces:
221 """Run standard test teardown and log ``show ip6 neighbors``."""
222 for i in self.interfaces:
226 for i in self.sub_interfaces:
227 i.remove_vpp_config()
229 super(TestIPv6, self).tearDown()
230 if not self.vpp_dead:
231 self.logger.info(self.vapi.cli("show ip6 neighbors"))
232 # info(self.vapi.cli("show ip6 fib")) # many entries
234 def modify_packet(self, src_if, packet_size, pkt):
235 """Add load, set destination IP and extend packet to required packet
236 size for defined interface.
238 :param VppInterface src_if: Interface to create packet for.
239 :param int packet_size: Required packet size.
240 :param Scapy pkt: Packet to be modified.
242 dst_if_idx = int(packet_size / 10 % 2)
243 dst_if = self.flows[src_if][dst_if_idx]
244 info = self.create_packet_info(src_if, dst_if)
245 payload = self.info_to_payload(info)
246 p = pkt / Raw(payload)
247 p[IPv6].dst = dst_if.remote_ip6
249 if isinstance(src_if, VppSubInterface):
250 p = src_if.add_dot1_layer(p)
251 self.extend_packet(p, packet_size)
255 def create_stream(self, src_if):
256 """Create input packet stream for defined interface.
258 :param VppInterface src_if: Interface to create packet stream for.
260 hdr_ext = 4 if isinstance(src_if, VppSubInterface) else 0
261 pkt_tmpl = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
262 IPv6(src=src_if.remote_ip6) /
263 inet6.UDP(sport=1234, dport=1234))
265 pkts = [self.modify_packet(src_if, i, pkt_tmpl)
266 for i in moves.range(self.pg_if_packet_sizes[0],
267 self.pg_if_packet_sizes[1], 10)]
268 pkts_b = [self.modify_packet(src_if, i, pkt_tmpl)
269 for i in moves.range(self.pg_if_packet_sizes[1] + hdr_ext,
270 self.pg_if_packet_sizes[2] + hdr_ext,
276 def verify_capture(self, dst_if, capture):
277 """Verify captured input packet stream for defined interface.
279 :param VppInterface dst_if: Interface to verify captured packet stream
281 :param list capture: Captured packet stream.
283 self.logger.info("Verifying capture on interface %s" % dst_if.name)
285 for i in self.interfaces:
286 last_info[i.sw_if_index] = None
288 dst_sw_if_index = dst_if.sw_if_index
289 if hasattr(dst_if, 'parent'):
291 for packet in capture:
293 # Check VLAN tags and Ethernet header
294 packet = dst_if.remove_dot1_layer(packet)
295 self.assertTrue(Dot1Q not in packet)
298 udp = packet[inet6.UDP]
299 payload_info = self.payload_to_info(packet[Raw])
300 packet_index = payload_info.index
301 self.assertEqual(payload_info.dst, dst_sw_if_index)
303 "Got packet on port %s: src=%u (id=%u)" %
304 (dst_if.name, payload_info.src, packet_index))
305 next_info = self.get_next_packet_info_for_interface2(
306 payload_info.src, dst_sw_if_index,
307 last_info[payload_info.src])
308 last_info[payload_info.src] = next_info
309 self.assertTrue(next_info is not None)
310 self.assertEqual(packet_index, next_info.index)
311 saved_packet = next_info.data
312 # Check standard fields
314 ip.src, saved_packet[IPv6].src)
316 ip.dst, saved_packet[IPv6].dst)
318 udp.sport, saved_packet[inet6.UDP].sport)
320 udp.dport, saved_packet[inet6.UDP].dport)
322 self.logger.error(ppp("Unexpected or invalid packet:", packet))
324 for i in self.interfaces:
325 remaining_packet = self.get_next_packet_info_for_interface2(
326 i.sw_if_index, dst_sw_if_index, last_info[i.sw_if_index])
327 self.assertTrue(remaining_packet is None,
328 "Interface %s: Packet expected from interface %s "
329 "didn't arrive" % (dst_if.name, i.name))
331 def test_next_header_anomaly(self):
332 """ IPv6 next header anomaly test
335 - ipv6 next header field = Fragment Header (44)
336 - next header is ICMPv6 Echo Request
337 - wait for reassembly
339 pkt = (Ether(src=self.pg0.local_mac, dst=self.pg0.remote_mac) /
340 IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6, nh=44) /
343 self.pg0.add_stream(pkt)
346 # wait for reassembly
353 - Create IPv6 stream for pg0 interface
354 - Create IPv6 tagged streams for pg1's and pg2's subinterface.
355 - Send and verify received packets on each interface.
358 pkts = self.create_stream(self.pg0)
359 self.pg0.add_stream(pkts)
361 for i in self.sub_interfaces:
362 pkts = self.create_stream(i)
363 i.parent.add_stream(pkts)
365 self.pg_enable_capture(self.pg_interfaces)
368 pkts = self.pg0.get_capture()
369 self.verify_capture(self.pg0, pkts)
371 for i in self.sub_interfaces:
372 pkts = i.parent.get_capture()
373 self.verify_capture(i, pkts)
376 """ IPv6 Neighbour Solicitation Exceptions
379 - Send an NS Sourced from an address not covered by the link sub-net
380 - Send an NS to an mcast address the router has not joined
381 - Send NS for a target address the router does not onn.
385 # An NS from a non link source address
387 nsma = in6_getnsma(inet_pton(AF_INET6, self.pg0.local_ip6))
388 d = inet_ntop(AF_INET6, nsma)
390 p = (Ether(dst=in6_getnsmac(nsma)) /
391 IPv6(dst=d, src="2002::2") /
392 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
393 ICMPv6NDOptSrcLLAddr(
394 lladdr=self.pg0.remote_mac))
397 self.send_and_assert_no_replies(
399 "No response to NS source by address not on sub-net")
402 # An NS for sent to a solicited mcast group the router is
403 # not a member of FAILS
406 nsma = in6_getnsma(inet_pton(AF_INET6, "fd::ffff"))
407 d = inet_ntop(AF_INET6, nsma)
409 p = (Ether(dst=in6_getnsmac(nsma)) /
410 IPv6(dst=d, src=self.pg0.remote_ip6) /
411 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
412 ICMPv6NDOptSrcLLAddr(
413 lladdr=self.pg0.remote_mac))
416 self.send_and_assert_no_replies(
418 "No response to NS sent to unjoined mcast address")
421 # An NS whose target address is one the router does not own
423 nsma = in6_getnsma(inet_pton(AF_INET6, self.pg0.local_ip6))
424 d = inet_ntop(AF_INET6, nsma)
426 p = (Ether(dst=in6_getnsmac(nsma)) /
427 IPv6(dst=d, src=self.pg0.remote_ip6) /
428 ICMPv6ND_NS(tgt="fd::ffff") /
429 ICMPv6NDOptSrcLLAddr(
430 lladdr=self.pg0.remote_mac))
433 self.send_and_assert_no_replies(self.pg0, pkts,
434 "No response to NS for unknown target")
437 # A neighbor entry that has no associated FIB-entry
439 self.pg0.generate_remote_hosts(4)
440 nd_entry = VppNeighbor(self,
441 self.pg0.sw_if_index,
442 self.pg0.remote_hosts[2].mac,
443 self.pg0.remote_hosts[2].ip6,
445 nd_entry.add_vpp_config()
448 # check we have the neighbor, but no route
450 self.assertTrue(find_nbr(self,
451 self.pg0.sw_if_index,
452 self.pg0._remote_hosts[2].ip6))
453 self.assertFalse(find_route(self,
454 self.pg0._remote_hosts[2].ip6,
458 # send an NS from a link local address to the interface's global
461 p = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
463 dst=d, src=self.pg0._remote_hosts[2].ip6_ll) /
464 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
465 ICMPv6NDOptSrcLLAddr(
466 lladdr=self.pg0.remote_mac))
468 self.send_and_expect_na(self.pg0, p,
469 "NS from link-local",
470 dst_ip=self.pg0._remote_hosts[2].ip6_ll,
471 tgt_ip=self.pg0.local_ip6)
474 # we should have learned an ND entry for the peer's link-local
475 # but not inserted a route to it in the FIB
477 self.assertTrue(find_nbr(self,
478 self.pg0.sw_if_index,
479 self.pg0._remote_hosts[2].ip6_ll))
480 self.assertFalse(find_route(self,
481 self.pg0._remote_hosts[2].ip6_ll,
485 # An NS to the router's own Link-local
487 p = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
489 dst=d, src=self.pg0._remote_hosts[3].ip6_ll) /
490 ICMPv6ND_NS(tgt=self.pg0.local_ip6_ll) /
491 ICMPv6NDOptSrcLLAddr(
492 lladdr=self.pg0.remote_mac))
494 self.send_and_expect_na(self.pg0, p,
495 "NS to/from link-local",
496 dst_ip=self.pg0._remote_hosts[3].ip6_ll,
497 tgt_ip=self.pg0.local_ip6_ll)
500 # we should have learned an ND entry for the peer's link-local
501 # but not inserted a route to it in the FIB
503 self.assertTrue(find_nbr(self,
504 self.pg0.sw_if_index,
505 self.pg0._remote_hosts[3].ip6_ll))
506 self.assertFalse(find_route(self,
507 self.pg0._remote_hosts[3].ip6_ll,
510 def test_ns_duplicates(self):
514 # Generate some hosts on the LAN
516 self.pg1.generate_remote_hosts(3)
519 # Add host 1 on pg1 and pg2
521 ns_pg1 = VppNeighbor(self,
522 self.pg1.sw_if_index,
523 self.pg1.remote_hosts[1].mac,
524 self.pg1.remote_hosts[1].ip6)
525 ns_pg1.add_vpp_config()
526 ns_pg2 = VppNeighbor(self,
527 self.pg2.sw_if_index,
529 self.pg1.remote_hosts[1].ip6)
530 ns_pg2.add_vpp_config()
533 # IP packet destined for pg1 remote host arrives on pg1 again.
535 p = (Ether(dst=self.pg0.local_mac,
536 src=self.pg0.remote_mac) /
537 IPv6(src=self.pg0.remote_ip6,
538 dst=self.pg1.remote_hosts[1].ip6) /
539 inet6.UDP(sport=1234, dport=1234) /
542 self.pg0.add_stream(p)
543 self.pg_enable_capture(self.pg_interfaces)
546 rx1 = self.pg1.get_capture(1)
548 self.verify_ip(rx1[0],
550 self.pg1.remote_hosts[1].mac,
552 self.pg1.remote_hosts[1].ip6)
555 # remove the duplicate on pg1
556 # packet stream should generate NSs out of pg1
558 ns_pg1.remove_vpp_config()
560 self.send_and_expect_ns(self.pg0, self.pg1,
561 p, self.pg1.remote_hosts[1].ip6)
566 ns_pg1.add_vpp_config()
568 self.pg0.add_stream(p)
569 self.pg_enable_capture(self.pg_interfaces)
572 rx1 = self.pg1.get_capture(1)
574 self.verify_ip(rx1[0],
576 self.pg1.remote_hosts[1].mac,
578 self.pg1.remote_hosts[1].ip6)
580 def validate_ra(self, intf, rx, dst_ip=None, mtu=9000, pi_opt=None):
582 dst_ip = intf.remote_ip6
584 # unicasted packets must come to the unicast mac
585 self.assertEqual(rx[Ether].dst, intf.remote_mac)
587 # and from the router's MAC
588 self.assertEqual(rx[Ether].src, intf.local_mac)
590 # the rx'd RA should be addressed to the sender's source
591 self.assertTrue(rx.haslayer(ICMPv6ND_RA))
592 self.assertEqual(in6_ptop(rx[IPv6].dst),
595 # and come from the router's link local
596 self.assertTrue(in6_islladdr(rx[IPv6].src))
597 self.assertEqual(in6_ptop(rx[IPv6].src),
598 in6_ptop(mk_ll_addr(intf.local_mac)))
600 # it should contain the links MTU
602 self.assertEqual(ra[ICMPv6NDOptMTU].mtu, mtu)
604 # it should contain the source's link layer address option
605 sll = ra[ICMPv6NDOptSrcLLAddr]
606 self.assertEqual(sll.lladdr, intf.local_mac)
609 # the RA should not contain prefix information
610 self.assertFalse(ra.haslayer(
611 ICMPv6NDOptPrefixInfo))
613 raos = rx.getlayer(ICMPv6NDOptPrefixInfo, 1)
615 # the options are nested in the scapy packet in way that i cannot
616 # decipher how to decode. this 1st layer of option always returns
617 # nested classes, so a direct obj1=obj2 comparison always fails.
618 # however, the getlayer(.., 2) does give one instance.
619 # so we cheat here and construct a new opt instance for comparison
620 rd = ICMPv6NDOptPrefixInfo(
621 prefixlen=raos.prefixlen,
625 if type(pi_opt) is list:
626 for ii in range(len(pi_opt)):
627 self.assertEqual(pi_opt[ii], rd)
629 ICMPv6NDOptPrefixInfo, ii + 2)
631 self.assertEqual(pi_opt, raos, 'Expected: %s, received: %s'
632 % (pi_opt.show(dump=True),
633 raos.show(dump=True)))
635 def send_and_expect_ra(self, intf, pkts, remark, dst_ip=None,
636 filter_out_fn=is_ipv6_misc,
638 intf.add_stream(pkts)
639 self.pg_enable_capture(self.pg_interfaces)
641 rx = intf.get_capture(1, filter_out_fn=filter_out_fn)
643 self.assertEqual(len(rx), 1)
645 self.validate_ra(intf, rx, dst_ip, pi_opt=opt)
648 """ IPv6 Router Solicitation Exceptions
654 # Before we begin change the IPv6 RA responses to use the unicast
655 # address - that way we will not confuse them with the periodic
656 # RAs which go to the mcast address
657 # Sit and wait for the first periodic RA.
661 self.pg0.ip6_ra_config(send_unicast=1)
664 # An RS from a link source address
665 # - expect an RA in return
667 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
669 dst=self.pg0.local_ip6, src=self.pg0.remote_ip6) /
672 self.send_and_expect_ra(self.pg0, pkts, "Genuine RS")
675 # For the next RS sent the RA should be rate limited
677 self.send_and_assert_no_replies(self.pg0, pkts, "RA rate limited")
680 # When we reconfigure the IPv6 RA config,
681 # we reset the RA rate limiting,
682 # so we need to do this before each test below so as not to drop
683 # packets for rate limiting reasons. Test this works here.
685 self.pg0.ip6_ra_config(send_unicast=1)
686 self.send_and_expect_ra(self.pg0, pkts, "Rate limit reset RS")
689 # An RS sent from a non-link local source
691 self.pg0.ip6_ra_config(send_unicast=1)
692 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
693 IPv6(dst=self.pg0.local_ip6,
697 self.send_and_assert_no_replies(self.pg0, pkts,
698 "RS from non-link source")
701 # Source an RS from a link local address
703 self.pg0.ip6_ra_config(send_unicast=1)
704 ll = mk_ll_addr(self.pg0.remote_mac)
705 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
706 IPv6(dst=self.pg0.local_ip6, src=ll) /
709 self.send_and_expect_ra(self.pg0, pkts,
710 "RS sourced from link-local",
714 # Send the RS multicast
716 self.pg0.ip6_ra_config(send_unicast=1)
717 dmac = in6_getnsmac(inet_pton(AF_INET6, "ff02::2"))
718 ll = mk_ll_addr(self.pg0.remote_mac)
719 p = (Ether(dst=dmac, src=self.pg0.remote_mac) /
720 IPv6(dst="ff02::2", src=ll) /
723 self.send_and_expect_ra(self.pg0, pkts,
724 "RS sourced from link-local",
728 # Source from the unspecified address ::. This happens when the RS
729 # is sent before the host has a configured address/sub-net,
730 # i.e. auto-config. Since the sender has no IP address, the reply
731 # comes back mcast - so the capture needs to not filter this.
732 # If we happen to pick up the periodic RA at this point then so be it,
735 self.pg0.ip6_ra_config(send_unicast=1, suppress=1)
736 p = (Ether(dst=dmac, src=self.pg0.remote_mac) /
737 IPv6(dst="ff02::2", src="::") /
740 self.send_and_expect_ra(self.pg0, pkts,
741 "RS sourced from unspecified",
746 # Configure The RA to announce the links prefix
748 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
749 self.pg0.local_ip6_prefix_len))
752 # RAs should now contain the prefix information option
754 opt = ICMPv6NDOptPrefixInfo(
755 prefixlen=self.pg0.local_ip6_prefix_len,
756 prefix=self.pg0.local_ip6,
760 self.pg0.ip6_ra_config(send_unicast=1)
761 ll = mk_ll_addr(self.pg0.remote_mac)
762 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
763 IPv6(dst=self.pg0.local_ip6, src=ll) /
765 self.send_and_expect_ra(self.pg0, p,
766 "RA with prefix-info",
771 # Change the prefix info to not off-link
774 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
775 self.pg0.local_ip6_prefix_len),
778 opt = ICMPv6NDOptPrefixInfo(
779 prefixlen=self.pg0.local_ip6_prefix_len,
780 prefix=self.pg0.local_ip6,
784 self.pg0.ip6_ra_config(send_unicast=1)
785 self.send_and_expect_ra(self.pg0, p,
786 "RA with Prefix info with L-flag=0",
791 # Change the prefix info to not off-link, no-autoconfig
792 # L and A flag are clear in the advert
794 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
795 self.pg0.local_ip6_prefix_len),
799 opt = ICMPv6NDOptPrefixInfo(
800 prefixlen=self.pg0.local_ip6_prefix_len,
801 prefix=self.pg0.local_ip6,
805 self.pg0.ip6_ra_config(send_unicast=1)
806 self.send_and_expect_ra(self.pg0, p,
807 "RA with Prefix info with A & L-flag=0",
812 # Change the flag settings back to the defaults
813 # L and A flag are set in the advert
815 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
816 self.pg0.local_ip6_prefix_len))
818 opt = ICMPv6NDOptPrefixInfo(
819 prefixlen=self.pg0.local_ip6_prefix_len,
820 prefix=self.pg0.local_ip6,
824 self.pg0.ip6_ra_config(send_unicast=1)
825 self.send_and_expect_ra(self.pg0, p,
826 "RA with Prefix info",
831 # Change the prefix info to not off-link, no-autoconfig
832 # L and A flag are clear in the advert
834 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
835 self.pg0.local_ip6_prefix_len),
839 opt = ICMPv6NDOptPrefixInfo(
840 prefixlen=self.pg0.local_ip6_prefix_len,
841 prefix=self.pg0.local_ip6,
845 self.pg0.ip6_ra_config(send_unicast=1)
846 self.send_and_expect_ra(self.pg0, p,
847 "RA with Prefix info with A & L-flag=0",
852 # Use the reset to defaults option to revert to defaults
853 # L and A flag are clear in the advert
855 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
856 self.pg0.local_ip6_prefix_len),
859 opt = ICMPv6NDOptPrefixInfo(
860 prefixlen=self.pg0.local_ip6_prefix_len,
861 prefix=self.pg0.local_ip6,
865 self.pg0.ip6_ra_config(send_unicast=1)
866 self.send_and_expect_ra(self.pg0, p,
867 "RA with Prefix reverted to defaults",
872 # Advertise Another prefix. With no L-flag/A-flag
874 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg1.local_ip6,
875 self.pg1.local_ip6_prefix_len),
879 opt = [ICMPv6NDOptPrefixInfo(
880 prefixlen=self.pg0.local_ip6_prefix_len,
881 prefix=self.pg0.local_ip6,
884 ICMPv6NDOptPrefixInfo(
885 prefixlen=self.pg1.local_ip6_prefix_len,
886 prefix=self.pg1.local_ip6,
890 self.pg0.ip6_ra_config(send_unicast=1)
891 ll = mk_ll_addr(self.pg0.remote_mac)
892 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
893 IPv6(dst=self.pg0.local_ip6, src=ll) /
895 self.send_and_expect_ra(self.pg0, p,
896 "RA with multiple Prefix infos",
901 # Remove the first prefix-info - expect the second is still in the
904 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
905 self.pg0.local_ip6_prefix_len),
908 opt = ICMPv6NDOptPrefixInfo(
909 prefixlen=self.pg1.local_ip6_prefix_len,
910 prefix=self.pg1.local_ip6,
914 self.pg0.ip6_ra_config(send_unicast=1)
915 self.send_and_expect_ra(self.pg0, p,
916 "RA with Prefix reverted to defaults",
921 # Remove the second prefix-info - expect no prefix-info in the adverts
923 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg1.local_ip6,
924 self.pg1.local_ip6_prefix_len),
927 self.pg0.ip6_ra_config(send_unicast=1)
928 self.send_and_expect_ra(self.pg0, p,
929 "RA with Prefix reverted to defaults",
933 # Reset the periodic advertisements back to default values
935 self.pg0.ip6_ra_config(no=1, suppress=1, send_unicast=0)
938 class TestIPv6IfAddrRoute(VppTestCase):
939 """ IPv6 Interface Addr Route Test Case """
943 super(TestIPv6IfAddrRoute, cls).setUpClass()
946 def tearDownClass(cls):
947 super(TestIPv6IfAddrRoute, cls).tearDownClass()
950 super(TestIPv6IfAddrRoute, self).setUp()
952 # create 1 pg interface
953 self.create_pg_interfaces(range(1))
955 for i in self.pg_interfaces:
961 super(TestIPv6IfAddrRoute, self).tearDown()
962 for i in self.pg_interfaces:
966 def test_ipv6_ifaddrs_same_prefix(self):
967 """ IPv6 Interface Addresses Same Prefix test
971 - Verify no route in FIB for prefix 2001:10::/64
972 - Configure IPv4 address 2001:10::10/64 on an interface
973 - Verify route in FIB for prefix 2001:10::/64
974 - Configure IPv4 address 2001:10::20/64 on an interface
975 - Delete 2001:10::10/64 from interface
976 - Verify route in FIB for prefix 2001:10::/64
977 - Delete 2001:10::20/64 from interface
978 - Verify no route in FIB for prefix 2001:10::/64
981 addr1 = "2001:10::10"
982 addr2 = "2001:10::20"
984 if_addr1 = VppIpInterfaceAddress(self, self.pg0, addr1, 64)
985 if_addr2 = VppIpInterfaceAddress(self, self.pg0, addr2, 64)
986 self.assertFalse(if_addr1.query_vpp_config())
987 self.assertFalse(find_route(self, addr1, 128))
988 self.assertFalse(find_route(self, addr2, 128))
990 # configure first address, verify route present
991 if_addr1.add_vpp_config()
992 self.assertTrue(if_addr1.query_vpp_config())
993 self.assertTrue(find_route(self, addr1, 128))
994 self.assertFalse(find_route(self, addr2, 128))
996 # configure second address, delete first, verify route not removed
997 if_addr2.add_vpp_config()
998 if_addr1.remove_vpp_config()
999 self.assertFalse(if_addr1.query_vpp_config())
1000 self.assertTrue(if_addr2.query_vpp_config())
1001 self.assertFalse(find_route(self, addr1, 128))
1002 self.assertTrue(find_route(self, addr2, 128))
1004 # delete second address, verify route removed
1005 if_addr2.remove_vpp_config()
1006 self.assertFalse(if_addr1.query_vpp_config())
1007 self.assertFalse(find_route(self, addr1, 128))
1008 self.assertFalse(find_route(self, addr2, 128))
1011 class TestICMPv6Echo(VppTestCase):
1012 """ ICMPv6 Echo Test Case """
1015 def setUpClass(cls):
1016 super(TestICMPv6Echo, cls).setUpClass()
1019 def tearDownClass(cls):
1020 super(TestICMPv6Echo, cls).tearDownClass()
1023 super(TestICMPv6Echo, self).setUp()
1025 # create 1 pg interface
1026 self.create_pg_interfaces(range(1))
1028 for i in self.pg_interfaces:
1034 super(TestICMPv6Echo, self).tearDown()
1035 for i in self.pg_interfaces:
1040 def test_icmpv6_echo(self):
1041 """ VPP replies to ICMPv6 Echo Request
1045 - Receive ICMPv6 Echo Request message on pg0 interface.
1046 - Check outgoing ICMPv6 Echo Reply message on pg0 interface.
1051 icmpv6_data = b'\x0a' * 18
1052 p_echo_request = (Ether(src=self.pg0.remote_mac,
1053 dst=self.pg0.local_mac) /
1054 IPv6(src=self.pg0.remote_ip6,
1055 dst=self.pg0.local_ip6) /
1061 self.pg0.add_stream(p_echo_request)
1062 self.pg_enable_capture(self.pg_interfaces)
1065 rx = self.pg0.get_capture(1)
1069 icmpv6 = rx[ICMPv6EchoReply]
1071 self.assertEqual(ether.src, self.pg0.local_mac)
1072 self.assertEqual(ether.dst, self.pg0.remote_mac)
1074 self.assertEqual(ipv6.src, self.pg0.local_ip6)
1075 self.assertEqual(ipv6.dst, self.pg0.remote_ip6)
1078 icmp6types[icmpv6.type], "Echo Reply")
1079 self.assertEqual(icmpv6.id, icmpv6_id)
1080 self.assertEqual(icmpv6.seq, icmpv6_seq)
1081 self.assertEqual(icmpv6.data, icmpv6_data)
1084 class TestIPv6RD(TestIPv6ND):
1085 """ IPv6 Router Discovery Test Case """
1088 def setUpClass(cls):
1089 super(TestIPv6RD, cls).setUpClass()
1092 def tearDownClass(cls):
1093 super(TestIPv6RD, cls).tearDownClass()
1096 super(TestIPv6RD, self).setUp()
1098 # create 2 pg interfaces
1099 self.create_pg_interfaces(range(2))
1101 self.interfaces = list(self.pg_interfaces)
1103 # setup all interfaces
1104 for i in self.interfaces:
1109 for i in self.interfaces:
1112 super(TestIPv6RD, self).tearDown()
1114 def test_rd_send_router_solicitation(self):
1115 """ Verify router solicitation packets """
1118 self.pg_enable_capture(self.pg_interfaces)
1120 self.vapi.ip6nd_send_router_solicitation(self.pg1.sw_if_index,
1122 rx_list = self.pg1.get_capture(count, timeout=3)
1123 self.assertEqual(len(rx_list), count)
1124 for packet in rx_list:
1125 self.assertEqual(packet.haslayer(IPv6), 1)
1126 self.assertEqual(packet[IPv6].haslayer(
1128 dst = ip6_normalize(packet[IPv6].dst)
1129 dst2 = ip6_normalize("ff02::2")
1130 self.assert_equal(dst, dst2)
1131 src = ip6_normalize(packet[IPv6].src)
1132 src2 = ip6_normalize(self.pg1.local_ip6_ll)
1133 self.assert_equal(src, src2)
1135 bool(packet[ICMPv6ND_RS].haslayer(
1136 ICMPv6NDOptSrcLLAddr)))
1138 packet[ICMPv6NDOptSrcLLAddr].lladdr,
1141 def verify_prefix_info(self, reported_prefix, prefix_option):
1142 prefix = IPv6Network(
1143 text_type(prefix_option.getfieldval("prefix") +
1145 text_type(prefix_option.getfieldval("prefixlen"))),
1147 self.assert_equal(reported_prefix.prefix.network_address,
1148 prefix.network_address)
1149 L = prefix_option.getfieldval("L")
1150 A = prefix_option.getfieldval("A")
1151 option_flags = (L << 7) | (A << 6)
1152 self.assert_equal(reported_prefix.flags, option_flags)
1153 self.assert_equal(reported_prefix.valid_time,
1154 prefix_option.getfieldval("validlifetime"))
1155 self.assert_equal(reported_prefix.preferred_time,
1156 prefix_option.getfieldval("preferredlifetime"))
1158 def test_rd_receive_router_advertisement(self):
1159 """ Verify events triggered by received RA packets """
1161 self.vapi.want_ip6_ra_events()
1163 prefix_info_1 = ICMPv6NDOptPrefixInfo(
1167 preferredlifetime=500,
1172 prefix_info_2 = ICMPv6NDOptPrefixInfo(
1176 preferredlifetime=1000,
1181 p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
1182 IPv6(dst=self.pg1.local_ip6_ll,
1183 src=mk_ll_addr(self.pg1.remote_mac)) /
1187 self.pg1.add_stream([p])
1190 ev = self.vapi.wait_for_event(10, "ip6_ra_event")
1192 self.assert_equal(ev.current_hop_limit, 0)
1193 self.assert_equal(ev.flags, 8)
1194 self.assert_equal(ev.router_lifetime_in_sec, 1800)
1195 self.assert_equal(ev.neighbor_reachable_time_in_msec, 0)
1197 ev.time_in_msec_between_retransmitted_neighbor_solicitations, 0)
1199 self.assert_equal(ev.n_prefixes, 2)
1201 self.verify_prefix_info(ev.prefixes[0], prefix_info_1)
1202 self.verify_prefix_info(ev.prefixes[1], prefix_info_2)
1205 class TestIPv6RDControlPlane(TestIPv6ND):
1206 """ IPv6 Router Discovery Control Plane Test Case """
1209 def setUpClass(cls):
1210 super(TestIPv6RDControlPlane, cls).setUpClass()
1213 def tearDownClass(cls):
1214 super(TestIPv6RDControlPlane, cls).tearDownClass()
1217 super(TestIPv6RDControlPlane, self).setUp()
1219 # create 1 pg interface
1220 self.create_pg_interfaces(range(1))
1222 self.interfaces = list(self.pg_interfaces)
1224 # setup all interfaces
1225 for i in self.interfaces:
1230 super(TestIPv6RDControlPlane, self).tearDown()
1233 def create_ra_packet(pg, routerlifetime=None):
1234 src_ip = pg.remote_ip6_ll
1235 dst_ip = pg.local_ip6
1236 if routerlifetime is not None:
1237 ra = ICMPv6ND_RA(routerlifetime=routerlifetime)
1240 p = (Ether(dst=pg.local_mac, src=pg.remote_mac) /
1241 IPv6(dst=dst_ip, src=src_ip) / ra)
1245 def get_default_routes(fib):
1248 if entry.route.prefix.prefixlen == 0:
1249 for path in entry.route.paths:
1250 if path.sw_if_index != 0xFFFFFFFF:
1252 defaut_route['sw_if_index'] = path.sw_if_index
1253 defaut_route['next_hop'] = path.nh.address.ip6
1254 list.append(defaut_route)
1258 def get_interface_addresses(fib, pg):
1261 if entry.route.prefix.prefixlen == 128:
1262 path = entry.route.paths[0]
1263 if path.sw_if_index == pg.sw_if_index:
1264 list.append(str(entry.route.prefix.network_address))
1268 """ Test handling of SLAAC addresses and default routes """
1270 fib = self.vapi.ip_route_dump(0, True)
1271 default_routes = self.get_default_routes(fib)
1272 initial_addresses = set(self.get_interface_addresses(fib, self.pg0))
1273 self.assertEqual(default_routes, [])
1274 router_address = IPv6Address(text_type(self.pg0.remote_ip6_ll))
1276 self.vapi.ip6_nd_address_autoconfig(self.pg0.sw_if_index, 1, 1)
1281 packet = (self.create_ra_packet(
1282 self.pg0) / ICMPv6NDOptPrefixInfo(
1286 preferredlifetime=2,
1289 ) / ICMPv6NDOptPrefixInfo(
1293 preferredlifetime=1000,
1297 self.pg0.add_stream([packet])
1300 self.sleep_on_vpp_time(0.1)
1302 fib = self.vapi.ip_route_dump(0, True)
1304 # check FIB for new address
1305 addresses = set(self.get_interface_addresses(fib, self.pg0))
1306 new_addresses = addresses.difference(initial_addresses)
1307 self.assertEqual(len(new_addresses), 1)
1308 prefix = IPv6Network(text_type("%s/%d" % (list(new_addresses)[0], 20)),
1310 self.assertEqual(prefix, IPv6Network(text_type('1::/20')))
1312 # check FIB for new default route
1313 default_routes = self.get_default_routes(fib)
1314 self.assertEqual(len(default_routes), 1)
1315 dr = default_routes[0]
1316 self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
1317 self.assertEqual(dr['next_hop'], router_address)
1319 # send RA to delete default route
1320 packet = self.create_ra_packet(self.pg0, routerlifetime=0)
1321 self.pg0.add_stream([packet])
1324 self.sleep_on_vpp_time(0.1)
1326 # check that default route is deleted
1327 fib = self.vapi.ip_route_dump(0, True)
1328 default_routes = self.get_default_routes(fib)
1329 self.assertEqual(len(default_routes), 0)
1331 self.sleep_on_vpp_time(0.1)
1334 packet = self.create_ra_packet(self.pg0)
1335 self.pg0.add_stream([packet])
1338 self.sleep_on_vpp_time(0.1)
1340 # check FIB for new default route
1341 fib = self.vapi.ip_route_dump(0, True)
1342 default_routes = self.get_default_routes(fib)
1343 self.assertEqual(len(default_routes), 1)
1344 dr = default_routes[0]
1345 self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
1346 self.assertEqual(dr['next_hop'], router_address)
1348 # send RA, updating router lifetime to 1s
1349 packet = self.create_ra_packet(self.pg0, 1)
1350 self.pg0.add_stream([packet])
1353 self.sleep_on_vpp_time(0.1)
1355 # check that default route still exists
1356 fib = self.vapi.ip_route_dump(0, True)
1357 default_routes = self.get_default_routes(fib)
1358 self.assertEqual(len(default_routes), 1)
1359 dr = default_routes[0]
1360 self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
1361 self.assertEqual(dr['next_hop'], router_address)
1363 self.sleep_on_vpp_time(1)
1365 # check that default route is deleted
1366 fib = self.vapi.ip_route_dump(0, True)
1367 default_routes = self.get_default_routes(fib)
1368 self.assertEqual(len(default_routes), 0)
1370 # check FIB still contains the SLAAC address
1371 addresses = set(self.get_interface_addresses(fib, self.pg0))
1372 new_addresses = addresses.difference(initial_addresses)
1374 self.assertEqual(len(new_addresses), 1)
1375 prefix = IPv6Network(text_type("%s/%d" % (list(new_addresses)[0], 20)),
1377 self.assertEqual(prefix, IPv6Network(text_type('1::/20')))
1379 self.sleep_on_vpp_time(1)
1381 # check that SLAAC address is deleted
1382 fib = self.vapi.ip_route_dump(0, True)
1383 addresses = set(self.get_interface_addresses(fib, self.pg0))
1384 new_addresses = addresses.difference(initial_addresses)
1385 self.assertEqual(len(new_addresses), 0)
1388 class IPv6NDProxyTest(TestIPv6ND):
1389 """ IPv6 ND ProxyTest Case """
1392 def setUpClass(cls):
1393 super(IPv6NDProxyTest, cls).setUpClass()
1396 def tearDownClass(cls):
1397 super(IPv6NDProxyTest, cls).tearDownClass()
1400 super(IPv6NDProxyTest, self).setUp()
1402 # create 3 pg interfaces
1403 self.create_pg_interfaces(range(3))
1405 # pg0 is the master interface, with the configured subnet
1407 self.pg0.config_ip6()
1408 self.pg0.resolve_ndp()
1410 self.pg1.ip6_enable()
1411 self.pg2.ip6_enable()
1414 super(IPv6NDProxyTest, self).tearDown()
1416 def test_nd_proxy(self):
1417 """ IPv6 Proxy ND """
1420 # Generate some hosts in the subnet that we are proxying
1422 self.pg0.generate_remote_hosts(8)
1424 nsma = in6_getnsma(inet_pton(AF_INET6, self.pg0.local_ip6))
1425 d = inet_ntop(AF_INET6, nsma)
1428 # Send an NS for one of those remote hosts on one of the proxy links
1429 # expect no response since it's from an address that is not
1430 # on the link that has the prefix configured
1432 ns_pg1 = (Ether(dst=in6_getnsmac(nsma), src=self.pg1.remote_mac) /
1434 src=self.pg0._remote_hosts[2].ip6) /
1435 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
1436 ICMPv6NDOptSrcLLAddr(
1437 lladdr=self.pg0._remote_hosts[2].mac))
1439 self.send_and_assert_no_replies(self.pg1, ns_pg1, "Off link NS")
1442 # Add proxy support for the host
1444 self.vapi.ip6nd_proxy_add_del(
1445 ip=inet_pton(AF_INET6, self.pg0._remote_hosts[2].ip6),
1446 sw_if_index=self.pg1.sw_if_index)
1449 # try that NS again. this time we expect an NA back
1451 self.send_and_expect_na(self.pg1, ns_pg1,
1452 "NS to proxy entry",
1453 dst_ip=self.pg0._remote_hosts[2].ip6,
1454 tgt_ip=self.pg0.local_ip6)
1457 # ... and that we have an entry in the ND cache
1459 self.assertTrue(find_nbr(self,
1460 self.pg1.sw_if_index,
1461 self.pg0._remote_hosts[2].ip6))
1464 # ... and we can route traffic to it
1466 t = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
1467 IPv6(dst=self.pg0._remote_hosts[2].ip6,
1468 src=self.pg0.remote_ip6) /
1469 inet6.UDP(sport=10000, dport=20000) /
1472 self.pg0.add_stream(t)
1473 self.pg_enable_capture(self.pg_interfaces)
1475 rx = self.pg1.get_capture(1)
1478 self.assertEqual(rx[Ether].dst, self.pg0._remote_hosts[2].mac)
1479 self.assertEqual(rx[Ether].src, self.pg1.local_mac)
1481 self.assertEqual(rx[IPv6].src,
1483 self.assertEqual(rx[IPv6].dst,
1487 # Test we proxy for the host on the main interface
1489 ns_pg0 = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
1490 IPv6(dst=d, src=self.pg0.remote_ip6) /
1492 tgt=self.pg0._remote_hosts[2].ip6) /
1493 ICMPv6NDOptSrcLLAddr(
1494 lladdr=self.pg0.remote_mac))
1496 self.send_and_expect_na(self.pg0, ns_pg0,
1497 "NS to proxy entry on main",
1498 tgt_ip=self.pg0._remote_hosts[2].ip6,
1499 dst_ip=self.pg0.remote_ip6)
1502 # Setup and resolve proxy for another host on another interface
1504 ns_pg2 = (Ether(dst=in6_getnsmac(nsma), src=self.pg2.remote_mac) /
1506 src=self.pg0._remote_hosts[3].ip6) /
1507 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
1508 ICMPv6NDOptSrcLLAddr(
1509 lladdr=self.pg0._remote_hosts[2].mac))
1511 self.vapi.ip6nd_proxy_add_del(
1512 ip=inet_pton(AF_INET6, self.pg0._remote_hosts[3].ip6),
1513 sw_if_index=self.pg2.sw_if_index)
1515 self.send_and_expect_na(self.pg2, ns_pg2,
1516 "NS to proxy entry other interface",
1517 dst_ip=self.pg0._remote_hosts[3].ip6,
1518 tgt_ip=self.pg0.local_ip6)
1520 self.assertTrue(find_nbr(self,
1521 self.pg2.sw_if_index,
1522 self.pg0._remote_hosts[3].ip6))
1525 # hosts can communicate. pg2->pg1
1527 t2 = (Ether(dst=self.pg2.local_mac,
1528 src=self.pg0.remote_hosts[3].mac) /
1529 IPv6(dst=self.pg0._remote_hosts[2].ip6,
1530 src=self.pg0._remote_hosts[3].ip6) /
1531 inet6.UDP(sport=10000, dport=20000) /
1534 self.pg2.add_stream(t2)
1535 self.pg_enable_capture(self.pg_interfaces)
1537 rx = self.pg1.get_capture(1)
1540 self.assertEqual(rx[Ether].dst, self.pg0._remote_hosts[2].mac)
1541 self.assertEqual(rx[Ether].src, self.pg1.local_mac)
1543 self.assertEqual(rx[IPv6].src,
1545 self.assertEqual(rx[IPv6].dst,
1549 # remove the proxy configs
1551 self.vapi.ip6nd_proxy_add_del(
1552 ip=inet_pton(AF_INET6, self.pg0._remote_hosts[2].ip6),
1553 sw_if_index=self.pg1.sw_if_index, is_del=1)
1554 self.vapi.ip6nd_proxy_add_del(
1555 ip=inet_pton(AF_INET6, self.pg0._remote_hosts[3].ip6),
1556 sw_if_index=self.pg2.sw_if_index, is_del=1)
1558 self.assertFalse(find_nbr(self,
1559 self.pg2.sw_if_index,
1560 self.pg0._remote_hosts[3].ip6))
1561 self.assertFalse(find_nbr(self,
1562 self.pg1.sw_if_index,
1563 self.pg0._remote_hosts[2].ip6))
1566 # no longer proxy-ing...
1568 self.send_and_assert_no_replies(self.pg0, ns_pg0, "Proxy unconfigured")
1569 self.send_and_assert_no_replies(self.pg1, ns_pg1, "Proxy unconfigured")
1570 self.send_and_assert_no_replies(self.pg2, ns_pg2, "Proxy unconfigured")
1573 # no longer forwarding. traffic generates NS out of the glean/main
1576 self.pg2.add_stream(t2)
1577 self.pg_enable_capture(self.pg_interfaces)
1580 rx = self.pg0.get_capture(1)
1582 self.assertTrue(rx[0].haslayer(ICMPv6ND_NS))
1585 class TestIPNull(VppTestCase):
1586 """ IPv6 routes via NULL """
1589 def setUpClass(cls):
1590 super(TestIPNull, cls).setUpClass()
1593 def tearDownClass(cls):
1594 super(TestIPNull, cls).tearDownClass()
1597 super(TestIPNull, self).setUp()
1599 # create 2 pg interfaces
1600 self.create_pg_interfaces(range(1))
1602 for i in self.pg_interfaces:
1608 super(TestIPNull, self).tearDown()
1609 for i in self.pg_interfaces:
1613 def test_ip_null(self):
1614 """ IP NULL route """
1616 p = (Ether(src=self.pg0.remote_mac,
1617 dst=self.pg0.local_mac) /
1618 IPv6(src=self.pg0.remote_ip6, dst="2001::1") /
1619 inet6.UDP(sport=1234, dport=1234) /
1623 # A route via IP NULL that will reply with ICMP unreachables
1625 ip_unreach = VppIpRoute(
1627 [VppRoutePath("::", 0xffffffff,
1628 type=FibPathType.FIB_PATH_TYPE_ICMP_UNREACH)])
1629 ip_unreach.add_vpp_config()
1631 self.pg0.add_stream(p)
1632 self.pg_enable_capture(self.pg_interfaces)
1635 rx = self.pg0.get_capture(1)
1637 icmp = rx[ICMPv6DestUnreach]
1639 # 0 = "No route to destination"
1640 self.assertEqual(icmp.code, 0)
1642 # ICMP is rate limited. pause a bit
1646 # A route via IP NULL that will reply with ICMP prohibited
1648 ip_prohibit = VppIpRoute(
1649 self, "2001::1", 128,
1650 [VppRoutePath("::", 0xffffffff,
1651 type=FibPathType.FIB_PATH_TYPE_ICMP_PROHIBIT)])
1652 ip_prohibit.add_vpp_config()
1654 self.pg0.add_stream(p)
1655 self.pg_enable_capture(self.pg_interfaces)
1658 rx = self.pg0.get_capture(1)
1660 icmp = rx[ICMPv6DestUnreach]
1662 # 1 = "Communication with destination administratively prohibited"
1663 self.assertEqual(icmp.code, 1)
1666 class TestIPDisabled(VppTestCase):
1667 """ IPv6 disabled """
1670 def setUpClass(cls):
1671 super(TestIPDisabled, cls).setUpClass()
1674 def tearDownClass(cls):
1675 super(TestIPDisabled, cls).tearDownClass()
1678 super(TestIPDisabled, self).setUp()
1680 # create 2 pg interfaces
1681 self.create_pg_interfaces(range(2))
1685 self.pg0.config_ip6()
1686 self.pg0.resolve_ndp()
1688 # PG 1 is not IP enabled
1692 super(TestIPDisabled, self).tearDown()
1693 for i in self.pg_interfaces:
1697 def test_ip_disabled(self):
1702 # one accepting interface, pg0, 2 forwarding interfaces
1704 route_ff_01 = VppIpMRoute(
1708 MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
1709 [VppMRoutePath(self.pg1.sw_if_index,
1710 MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
1711 VppMRoutePath(self.pg0.sw_if_index,
1712 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
1713 route_ff_01.add_vpp_config()
1715 pu = (Ether(src=self.pg1.remote_mac,
1716 dst=self.pg1.local_mac) /
1717 IPv6(src="2001::1", dst=self.pg0.remote_ip6) /
1718 inet6.UDP(sport=1234, dport=1234) /
1720 pm = (Ether(src=self.pg1.remote_mac,
1721 dst=self.pg1.local_mac) /
1722 IPv6(src="2001::1", dst="ffef::1") /
1723 inet6.UDP(sport=1234, dport=1234) /
1727 # PG1 does not forward IP traffic
1729 self.send_and_assert_no_replies(self.pg1, pu, "IPv6 disabled")
1730 self.send_and_assert_no_replies(self.pg1, pm, "IPv6 disabled")
1735 self.pg1.config_ip6()
1738 # Now we get packets through
1740 self.pg1.add_stream(pu)
1741 self.pg_enable_capture(self.pg_interfaces)
1743 rx = self.pg0.get_capture(1)
1745 self.pg1.add_stream(pm)
1746 self.pg_enable_capture(self.pg_interfaces)
1748 rx = self.pg0.get_capture(1)
1753 self.pg1.unconfig_ip6()
1756 # PG1 does not forward IP traffic
1758 self.send_and_assert_no_replies(self.pg1, pu, "IPv6 disabled")
1759 self.send_and_assert_no_replies(self.pg1, pm, "IPv6 disabled")
1762 class TestIP6LoadBalance(VppTestCase):
1763 """ IPv6 Load-Balancing """
1766 def setUpClass(cls):
1767 super(TestIP6LoadBalance, cls).setUpClass()
1770 def tearDownClass(cls):
1771 super(TestIP6LoadBalance, cls).tearDownClass()
1774 super(TestIP6LoadBalance, self).setUp()
1776 self.create_pg_interfaces(range(5))
1778 mpls_tbl = VppMplsTable(self, 0)
1779 mpls_tbl.add_vpp_config()
1781 for i in self.pg_interfaces:
1788 for i in self.pg_interfaces:
1792 super(TestIP6LoadBalance, self).tearDown()
1794 def pg_send(self, input, pkts):
1795 self.vapi.cli("clear trace")
1796 input.add_stream(pkts)
1797 self.pg_enable_capture(self.pg_interfaces)
1800 def send_and_expect_load_balancing(self, input, pkts, outputs):
1801 self.pg_send(input, pkts)
1803 rx = oo._get_capture(1)
1804 self.assertNotEqual(0, len(rx))
1806 def send_and_expect_one_itf(self, input, pkts, itf):
1807 self.pg_send(input, pkts)
1808 rx = itf.get_capture(len(pkts))
1810 def test_ip6_load_balance(self):
1811 """ IPv6 Load-Balancing """
1814 # An array of packets that differ only in the destination port
1818 # - MPLS non-EOS with an entropy label
1822 port_mpls_neos_pkts = []
1826 # An array of packets that differ only in the source address
1831 for ii in range(NUM_PKTS):
1833 IPv6(dst="3000::1", src="3000:1::1") /
1834 inet6.UDP(sport=1234, dport=1234 + ii) /
1836 port_ip_pkts.append((Ether(src=self.pg0.remote_mac,
1837 dst=self.pg0.local_mac) /
1839 port_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
1840 dst=self.pg0.local_mac) /
1841 MPLS(label=66, ttl=2) /
1843 port_mpls_neos_pkts.append((Ether(src=self.pg0.remote_mac,
1844 dst=self.pg0.local_mac) /
1845 MPLS(label=67, ttl=2) /
1846 MPLS(label=77, ttl=2) /
1848 port_ent_pkts.append((Ether(src=self.pg0.remote_mac,
1849 dst=self.pg0.local_mac) /
1850 MPLS(label=67, ttl=2) /
1851 MPLS(label=14, ttl=2) /
1852 MPLS(label=999, ttl=2) /
1855 IPv6(dst="3000::1", src="3000:1::%d" % ii) /
1856 inet6.UDP(sport=1234, dport=1234) /
1858 src_ip_pkts.append((Ether(src=self.pg0.remote_mac,
1859 dst=self.pg0.local_mac) /
1861 src_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
1862 dst=self.pg0.local_mac) /
1863 MPLS(label=66, ttl=2) /
1867 # A route for the IP packets
1869 route_3000_1 = VppIpRoute(self, "3000::1", 128,
1870 [VppRoutePath(self.pg1.remote_ip6,
1871 self.pg1.sw_if_index),
1872 VppRoutePath(self.pg2.remote_ip6,
1873 self.pg2.sw_if_index)])
1874 route_3000_1.add_vpp_config()
1877 # a local-label for the EOS packets
1879 binding = VppMplsIpBind(self, 66, "3000::1", 128, is_ip6=1)
1880 binding.add_vpp_config()
1883 # An MPLS route for the non-EOS packets
1885 route_67 = VppMplsRoute(self, 67, 0,
1886 [VppRoutePath(self.pg1.remote_ip6,
1887 self.pg1.sw_if_index,
1889 VppRoutePath(self.pg2.remote_ip6,
1890 self.pg2.sw_if_index,
1892 route_67.add_vpp_config()
1895 # inject the packet on pg0 - expect load-balancing across the 2 paths
1896 # - since the default hash config is to use IP src,dst and port
1898 # We are not going to ensure equal amounts of packets across each link,
1899 # since the hash algorithm is statistical and therefore this can never
1900 # be guaranteed. But with 64 different packets we do expect some
1901 # balancing. So instead just ensure there is traffic on each link.
1903 self.send_and_expect_load_balancing(self.pg0, port_ip_pkts,
1904 [self.pg1, self.pg2])
1905 self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
1906 [self.pg1, self.pg2])
1907 self.send_and_expect_load_balancing(self.pg0, port_mpls_pkts,
1908 [self.pg1, self.pg2])
1909 self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
1910 [self.pg1, self.pg2])
1911 self.send_and_expect_load_balancing(self.pg0, port_mpls_neos_pkts,
1912 [self.pg1, self.pg2])
1915 # The packets with Entropy label in should not load-balance,
1916 # since the Entropy value is fixed.
1918 self.send_and_expect_one_itf(self.pg0, port_ent_pkts, self.pg1)
1921 # change the flow hash config so it's only IP src,dst
1922 # - now only the stream with differing source address will
1925 self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, sport=0, dport=0,
1928 self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
1929 [self.pg1, self.pg2])
1930 self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
1931 [self.pg1, self.pg2])
1932 self.send_and_expect_one_itf(self.pg0, port_ip_pkts, self.pg2)
1935 # change the flow hash config back to defaults
1937 self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, sport=1, dport=1,
1941 # Recursive prefixes
1942 # - testing that 2 stages of load-balancing occurs and there is no
1943 # polarisation (i.e. only 2 of 4 paths are used)
1948 for ii in range(257):
1949 port_pkts.append((Ether(src=self.pg0.remote_mac,
1950 dst=self.pg0.local_mac) /
1953 inet6.UDP(sport=1234,
1955 Raw(b'\xa5' * 100)))
1956 src_pkts.append((Ether(src=self.pg0.remote_mac,
1957 dst=self.pg0.local_mac) /
1959 src="4000:1::%d" % ii) /
1960 inet6.UDP(sport=1234, dport=1234) /
1961 Raw(b'\xa5' * 100)))
1963 route_3000_2 = VppIpRoute(self, "3000::2", 128,
1964 [VppRoutePath(self.pg3.remote_ip6,
1965 self.pg3.sw_if_index),
1966 VppRoutePath(self.pg4.remote_ip6,
1967 self.pg4.sw_if_index)])
1968 route_3000_2.add_vpp_config()
1970 route_4000_1 = VppIpRoute(self, "4000::1", 128,
1971 [VppRoutePath("3000::1",
1973 VppRoutePath("3000::2",
1975 route_4000_1.add_vpp_config()
1978 # inject the packet on pg0 - expect load-balancing across all 4 paths
1980 self.vapi.cli("clear trace")
1981 self.send_and_expect_load_balancing(self.pg0, port_pkts,
1982 [self.pg1, self.pg2,
1983 self.pg3, self.pg4])
1984 self.send_and_expect_load_balancing(self.pg0, src_pkts,
1985 [self.pg1, self.pg2,
1986 self.pg3, self.pg4])
1989 # Recursive prefixes
1990 # - testing that 2 stages of load-balancing no choices
1994 for ii in range(257):
1995 port_pkts.append((Ether(src=self.pg0.remote_mac,
1996 dst=self.pg0.local_mac) /
1999 inet6.UDP(sport=1234,
2001 Raw(b'\xa5' * 100)))
2003 route_5000_2 = VppIpRoute(self, "5000::2", 128,
2004 [VppRoutePath(self.pg3.remote_ip6,
2005 self.pg3.sw_if_index)])
2006 route_5000_2.add_vpp_config()
2008 route_6000_1 = VppIpRoute(self, "6000::1", 128,
2009 [VppRoutePath("5000::2",
2011 route_6000_1.add_vpp_config()
2014 # inject the packet on pg0 - expect load-balancing across all 4 paths
2016 self.vapi.cli("clear trace")
2017 self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg3)
2020 class TestIP6Punt(VppTestCase):
2021 """ IPv6 Punt Police/Redirect """
2024 def setUpClass(cls):
2025 super(TestIP6Punt, cls).setUpClass()
2028 def tearDownClass(cls):
2029 super(TestIP6Punt, cls).tearDownClass()
2032 super(TestIP6Punt, self).setUp()
2034 self.create_pg_interfaces(range(4))
2036 for i in self.pg_interfaces:
2042 super(TestIP6Punt, self).tearDown()
2043 for i in self.pg_interfaces:
2047 def test_ip_punt(self):
2048 """ IP6 punt police and redirect """
2050 p = (Ether(src=self.pg0.remote_mac,
2051 dst=self.pg0.local_mac) /
2052 IPv6(src=self.pg0.remote_ip6,
2053 dst=self.pg0.local_ip6) /
2054 inet6.TCP(sport=1234, dport=1234) /
2060 # Configure a punt redirect via pg1.
2062 nh_addr = self.pg1.remote_ip6
2063 self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
2064 self.pg1.sw_if_index,
2067 self.send_and_expect(self.pg0, pkts, self.pg1)
2072 policer = self.vapi.policer_add_del(b"ip6-punt", 400, 0, 10, 0,
2074 self.vapi.ip_punt_police(policer.policer_index, is_ip6=1)
2076 self.vapi.cli("clear trace")
2077 self.pg0.add_stream(pkts)
2078 self.pg_enable_capture(self.pg_interfaces)
2082 # the number of packet received should be greater than 0,
2083 # but not equal to the number sent, since some were policed
2085 rx = self.pg1._get_capture(1)
2086 self.assertGreater(len(rx), 0)
2087 self.assertLess(len(rx), len(pkts))
2090 # remove the policer. back to full rx
2092 self.vapi.ip_punt_police(policer.policer_index, is_add=0, is_ip6=1)
2093 self.vapi.policer_add_del(b"ip6-punt", 400, 0, 10, 0,
2094 rate_type=1, is_add=0)
2095 self.send_and_expect(self.pg0, pkts, self.pg1)
2098 # remove the redirect. expect full drop.
2100 self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
2101 self.pg1.sw_if_index,
2104 self.send_and_assert_no_replies(self.pg0, pkts,
2105 "IP no punt config")
2108 # Add a redirect that is not input port selective
2110 self.vapi.ip_punt_redirect(0xffffffff,
2111 self.pg1.sw_if_index,
2113 self.send_and_expect(self.pg0, pkts, self.pg1)
2115 self.vapi.ip_punt_redirect(0xffffffff,
2116 self.pg1.sw_if_index,
2120 def test_ip_punt_dump(self):
2121 """ IP6 punt redirect dump"""
2124 # Configure a punt redirects
2126 nh_addr = self.pg3.remote_ip6
2127 self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
2128 self.pg3.sw_if_index,
2130 self.vapi.ip_punt_redirect(self.pg1.sw_if_index,
2131 self.pg3.sw_if_index,
2133 self.vapi.ip_punt_redirect(self.pg2.sw_if_index,
2134 self.pg3.sw_if_index,
2138 # Dump pg0 punt redirects
2140 punts = self.vapi.ip_punt_redirect_dump(self.pg0.sw_if_index,
2143 self.assertEqual(p.punt.rx_sw_if_index, self.pg0.sw_if_index)
2146 # Dump punt redirects for all interfaces
2148 punts = self.vapi.ip_punt_redirect_dump(0xffffffff, is_ipv6=1)
2149 self.assertEqual(len(punts), 3)
2151 self.assertEqual(p.punt.tx_sw_if_index, self.pg3.sw_if_index)
2152 self.assertNotEqual(punts[1].punt.nh, self.pg3.remote_ip6)
2153 self.assertEqual(str(punts[2].punt.nh), '::')
2156 class TestIPDeag(VppTestCase):
2157 """ IPv6 Deaggregate Routes """
2160 def setUpClass(cls):
2161 super(TestIPDeag, cls).setUpClass()
2164 def tearDownClass(cls):
2165 super(TestIPDeag, cls).tearDownClass()
2168 super(TestIPDeag, self).setUp()
2170 self.create_pg_interfaces(range(3))
2172 for i in self.pg_interfaces:
2178 super(TestIPDeag, self).tearDown()
2179 for i in self.pg_interfaces:
2183 def test_ip_deag(self):
2184 """ IP Deag Routes """
2187 # Create a table to be used for:
2188 # 1 - another destination address lookup
2189 # 2 - a source address lookup
2191 table_dst = VppIpTable(self, 1, is_ip6=1)
2192 table_src = VppIpTable(self, 2, is_ip6=1)
2193 table_dst.add_vpp_config()
2194 table_src.add_vpp_config()
2197 # Add a route in the default table to point to a deag/
2198 # second lookup in each of these tables
2200 route_to_dst = VppIpRoute(self, "1::1", 128,
2204 route_to_src = VppIpRoute(
2209 type=FibPathType.FIB_PATH_TYPE_SOURCE_LOOKUP)])
2211 route_to_dst.add_vpp_config()
2212 route_to_src.add_vpp_config()
2215 # packets to these destination are dropped, since they'll
2216 # hit the respective default routes in the second table
2218 p_dst = (Ether(src=self.pg0.remote_mac,
2219 dst=self.pg0.local_mac) /
2220 IPv6(src="5::5", dst="1::1") /
2221 inet6.TCP(sport=1234, dport=1234) /
2223 p_src = (Ether(src=self.pg0.remote_mac,
2224 dst=self.pg0.local_mac) /
2225 IPv6(src="2::2", dst="1::2") /
2226 inet6.TCP(sport=1234, dport=1234) /
2228 pkts_dst = p_dst * 257
2229 pkts_src = p_src * 257
2231 self.send_and_assert_no_replies(self.pg0, pkts_dst,
2233 self.send_and_assert_no_replies(self.pg0, pkts_src,
2237 # add a route in the dst table to forward via pg1
2239 route_in_dst = VppIpRoute(self, "1::1", 128,
2240 [VppRoutePath(self.pg1.remote_ip6,
2241 self.pg1.sw_if_index)],
2243 route_in_dst.add_vpp_config()
2245 self.send_and_expect(self.pg0, pkts_dst, self.pg1)
2248 # add a route in the src table to forward via pg2
2250 route_in_src = VppIpRoute(self, "2::2", 128,
2251 [VppRoutePath(self.pg2.remote_ip6,
2252 self.pg2.sw_if_index)],
2254 route_in_src.add_vpp_config()
2255 self.send_and_expect(self.pg0, pkts_src, self.pg2)
2258 # loop in the lookup DP
2260 route_loop = VppIpRoute(self, "3::3", 128,
2263 route_loop.add_vpp_config()
2265 p_l = (Ether(src=self.pg0.remote_mac,
2266 dst=self.pg0.local_mac) /
2267 IPv6(src="3::4", dst="3::3") /
2268 inet6.TCP(sport=1234, dport=1234) /
2271 self.send_and_assert_no_replies(self.pg0, p_l * 257,
2275 class TestIP6Input(VppTestCase):
2276 """ IPv6 Input Exception Test Cases """
2279 def setUpClass(cls):
2280 super(TestIP6Input, cls).setUpClass()
2283 def tearDownClass(cls):
2284 super(TestIP6Input, cls).tearDownClass()
2287 super(TestIP6Input, self).setUp()
2289 self.create_pg_interfaces(range(2))
2291 for i in self.pg_interfaces:
2297 super(TestIP6Input, self).tearDown()
2298 for i in self.pg_interfaces:
2302 def test_ip_input_icmp_reply(self):
2303 """ IP6 Input Exception - Return ICMP (3,0) """
2305 # hop limit - ICMP replies
2307 p_version = (Ether(src=self.pg0.remote_mac,
2308 dst=self.pg0.local_mac) /
2309 IPv6(src=self.pg0.remote_ip6,
2310 dst=self.pg1.remote_ip6,
2312 inet6.UDP(sport=1234, dport=1234) /
2315 rx = self.send_and_expect(self.pg0, p_version * NUM_PKTS, self.pg0)
2317 icmp = rx[ICMPv6TimeExceeded]
2319 # 0: "hop limit exceeded in transit",
2320 self.assertEqual((icmp.type, icmp.code), (3, 0))
2322 icmpv6_data = '\x0a' * 18
2324 all_1s = "FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF"
2326 @parameterized.expand([
2327 # Name, src, dst, l4proto, msg, timeout
2328 ("src='iface', dst='iface'", None, None,
2329 inet6.UDP(sport=1234, dport=1234), "funky version", None),
2330 ("src='All 0's', dst='iface'", all_0s, None,
2331 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2332 ("src='iface', dst='All 0's'", None, all_0s,
2333 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2334 ("src='All 1's', dst='iface'", all_1s, None,
2335 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2336 ("src='iface', dst='All 1's'", None, all_1s,
2337 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2338 ("src='All 1's', dst='All 1's'", all_1s, all_1s,
2339 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2342 def test_ip_input_no_replies(self, name, src, dst, l4, msg, timeout):
2344 self._testMethodDoc = 'IPv6 Input Exception - %s' % name
2346 p_version = (Ether(src=self.pg0.remote_mac,
2347 dst=self.pg0.local_mac) /
2348 IPv6(src=src or self.pg0.remote_ip6,
2349 dst=dst or self.pg1.remote_ip6,
2354 self.send_and_assert_no_replies(self.pg0, p_version * NUM_PKTS,
2358 def test_hop_by_hop(self):
2359 """ Hop-by-hop header test """
2361 p = (Ether(src=self.pg0.remote_mac,
2362 dst=self.pg0.local_mac) /
2363 IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6) /
2364 IPv6ExtHdrHopByHop() /
2365 inet6.UDP(sport=1234, dport=1234) /
2368 self.pg0.add_stream(p)
2369 self.pg_enable_capture(self.pg_interfaces)
2373 class TestIPReplace(VppTestCase):
2374 """ IPv6 Table Replace """
2377 def setUpClass(cls):
2378 super(TestIPReplace, cls).setUpClass()
2381 def tearDownClass(cls):
2382 super(TestIPReplace, cls).tearDownClass()
2385 super(TestIPReplace, self).setUp()
2387 self.create_pg_interfaces(range(4))
2392 for i in self.pg_interfaces:
2396 i.generate_remote_hosts(2)
2397 self.tables.append(VppIpTable(self, table_id,
2398 True).add_vpp_config())
2402 super(TestIPReplace, self).tearDown()
2403 for i in self.pg_interfaces:
2407 def test_replace(self):
2408 """ IP Table Replace """
2411 links = [self.pg0, self.pg1, self.pg2, self.pg3]
2412 routes = [[], [], [], []]
2414 # the sizes of 'empty' tables
2415 for t in self.tables:
2416 self.assertEqual(len(t.dump()), 2)
2417 self.assertEqual(len(t.mdump()), 5)
2419 # load up the tables with some routes
2420 for ii, t in enumerate(self.tables):
2421 for jj in range(1, N_ROUTES):
2423 self, "2001::%d" % jj if jj != 0 else "2001::", 128,
2424 [VppRoutePath(links[ii].remote_hosts[0].ip6,
2425 links[ii].sw_if_index),
2426 VppRoutePath(links[ii].remote_hosts[1].ip6,
2427 links[ii].sw_if_index)],
2428 table_id=t.table_id).add_vpp_config()
2429 multi = VppIpMRoute(
2431 "ff:2001::%d" % jj, 128,
2432 MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
2433 [VppMRoutePath(self.pg0.sw_if_index,
2434 MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT,
2435 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
2436 VppMRoutePath(self.pg1.sw_if_index,
2437 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
2438 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
2439 VppMRoutePath(self.pg2.sw_if_index,
2440 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
2441 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
2442 VppMRoutePath(self.pg3.sw_if_index,
2443 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
2444 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6)],
2445 table_id=t.table_id).add_vpp_config()
2446 routes[ii].append({'uni': uni,
2450 # replace the tables a few times
2453 # replace each table
2454 for t in self.tables:
2457 # all the routes are still there
2458 for ii, t in enumerate(self.tables):
2461 for r in routes[ii]:
2462 self.assertTrue(find_route_in_dump(dump, r['uni'], t))
2463 self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
2465 # redownload the even numbered routes
2466 for ii, t in enumerate(self.tables):
2467 for jj in range(0, N_ROUTES, 2):
2468 routes[ii][jj]['uni'].add_vpp_config()
2469 routes[ii][jj]['multi'].add_vpp_config()
2471 # signal each table converged
2472 for t in self.tables:
2475 # we should find the even routes, but not the odd
2476 for ii, t in enumerate(self.tables):
2479 for jj in range(0, N_ROUTES, 2):
2480 self.assertTrue(find_route_in_dump(
2481 dump, routes[ii][jj]['uni'], t))
2482 self.assertTrue(find_mroute_in_dump(
2483 mdump, routes[ii][jj]['multi'], t))
2484 for jj in range(1, N_ROUTES - 1, 2):
2485 self.assertFalse(find_route_in_dump(
2486 dump, routes[ii][jj]['uni'], t))
2487 self.assertFalse(find_mroute_in_dump(
2488 mdump, routes[ii][jj]['multi'], t))
2490 # reload all the routes
2491 for ii, t in enumerate(self.tables):
2492 for r in routes[ii]:
2493 r['uni'].add_vpp_config()
2494 r['multi'].add_vpp_config()
2496 # all the routes are still there
2497 for ii, t in enumerate(self.tables):
2500 for r in routes[ii]:
2501 self.assertTrue(find_route_in_dump(dump, r['uni'], t))
2502 self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
2505 # finally flush the tables for good measure
2507 for t in self.tables:
2509 self.assertEqual(len(t.dump()), 2)
2510 self.assertEqual(len(t.mdump()), 5)
2513 if __name__ == '__main__':
2514 unittest.main(testRunner=VppTestRunner)