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 self.vapi.cli("clear trace")
141 tx_intf.add_stream(pkts)
142 self.pg_enable_capture(self.pg_interfaces)
144 rx = rx_intf.get_capture(1, filter_out_fn=filter_out_fn)
146 self.assertEqual(len(rx), 1)
148 self.validate_ns(rx_intf, rx, tgt_ip)
150 def verify_ip(self, rx, smac, dmac, sip, dip):
152 self.assertEqual(ether.dst, dmac)
153 self.assertEqual(ether.src, smac)
156 self.assertEqual(ip.src, sip)
157 self.assertEqual(ip.dst, dip)
160 class TestIPv6(TestIPv6ND):
161 """ IPv6 Test Case """
165 super(TestIPv6, cls).setUpClass()
168 def tearDownClass(cls):
169 super(TestIPv6, cls).tearDownClass()
173 Perform test setup before test case.
176 - create 3 pg interfaces
177 - untagged pg0 interface
178 - Dot1Q subinterface on pg1
179 - Dot1AD subinterface on pg2
181 - put it into UP state
183 - resolve neighbor address using NDP
184 - configure 200 fib entries
186 :ivar list interfaces: pg interfaces and subinterfaces.
187 :ivar dict flows: IPv4 packet flows in test.
189 *TODO:* Create AD sub interface
191 super(TestIPv6, self).setUp()
193 # create 3 pg interfaces
194 self.create_pg_interfaces(range(3))
196 # create 2 subinterfaces for p1 and pg2
197 self.sub_interfaces = [
198 VppDot1QSubint(self, self.pg1, 100),
199 VppDot1QSubint(self, self.pg2, 200)
200 # TODO: VppDot1ADSubint(self, self.pg2, 200, 300, 400)
203 # packet flows mapping pg0 -> pg1.sub, pg2.sub, etc.
205 self.flows[self.pg0] = [self.pg1.sub_if, self.pg2.sub_if]
206 self.flows[self.pg1.sub_if] = [self.pg0, self.pg2.sub_if]
207 self.flows[self.pg2.sub_if] = [self.pg0, self.pg1.sub_if]
210 self.pg_if_packet_sizes = [64, 1500, 9020]
212 self.interfaces = list(self.pg_interfaces)
213 self.interfaces.extend(self.sub_interfaces)
215 # setup all interfaces
216 for i in self.interfaces:
222 """Run standard test teardown and log ``show ip6 neighbors``."""
223 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, src_ip=None,
581 mtu=9000, pi_opt=None):
583 dst_ip = intf.remote_ip6
585 src_ip = mk_ll_addr(intf.local_mac)
587 # unicasted packets must come to the unicast mac
588 self.assertEqual(rx[Ether].dst, intf.remote_mac)
590 # and from the router's MAC
591 self.assertEqual(rx[Ether].src, intf.local_mac)
593 # the rx'd RA should be addressed to the sender's source
594 self.assertTrue(rx.haslayer(ICMPv6ND_RA))
595 self.assertEqual(in6_ptop(rx[IPv6].dst),
598 # and come from the router's link local
599 self.assertTrue(in6_islladdr(rx[IPv6].src))
600 self.assertEqual(in6_ptop(rx[IPv6].src), in6_ptop(src_ip))
602 # it should contain the links MTU
604 self.assertEqual(ra[ICMPv6NDOptMTU].mtu, mtu)
606 # it should contain the source's link layer address option
607 sll = ra[ICMPv6NDOptSrcLLAddr]
608 self.assertEqual(sll.lladdr, intf.local_mac)
611 # the RA should not contain prefix information
612 self.assertFalse(ra.haslayer(
613 ICMPv6NDOptPrefixInfo))
615 raos = rx.getlayer(ICMPv6NDOptPrefixInfo, 1)
617 # the options are nested in the scapy packet in way that i cannot
618 # decipher how to decode. this 1st layer of option always returns
619 # nested classes, so a direct obj1=obj2 comparison always fails.
620 # however, the getlayer(.., 2) does give one instance.
621 # so we cheat here and construct a new opt instance for comparison
622 rd = ICMPv6NDOptPrefixInfo(
623 prefixlen=raos.prefixlen,
627 if type(pi_opt) is list:
628 for ii in range(len(pi_opt)):
629 self.assertEqual(pi_opt[ii], rd)
631 ICMPv6NDOptPrefixInfo, ii + 2)
633 self.assertEqual(pi_opt, raos, 'Expected: %s, received: %s'
634 % (pi_opt.show(dump=True),
635 raos.show(dump=True)))
637 def send_and_expect_ra(self, intf, pkts, remark, dst_ip=None,
638 filter_out_fn=is_ipv6_misc,
641 self.vapi.cli("clear trace")
642 intf.add_stream(pkts)
643 self.pg_enable_capture(self.pg_interfaces)
645 rx = intf.get_capture(1, filter_out_fn=filter_out_fn)
647 self.assertEqual(len(rx), 1)
649 self.validate_ra(intf, rx, dst_ip, src_ip=src_ip, pi_opt=opt)
652 """ IPv6 Router Solicitation Exceptions
658 # Before we begin change the IPv6 RA responses to use the unicast
659 # address - that way we will not confuse them with the periodic
660 # RAs which go to the mcast address
661 # Sit and wait for the first periodic RA.
665 self.pg0.ip6_ra_config(send_unicast=1)
668 # An RS from a link source address
669 # - expect an RA in return
671 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
672 IPv6(dst=self.pg0.local_ip6, src=self.pg0.remote_ip6) /
675 self.send_and_expect_ra(self.pg0, pkts, "Genuine RS")
678 # For the next RS sent the RA should be rate limited
680 self.send_and_assert_no_replies(self.pg0, pkts, "RA rate limited")
683 # When we reconfigure the IPv6 RA config,
684 # we reset the RA rate limiting,
685 # so we need to do this before each test below so as not to drop
686 # packets for rate limiting reasons. Test this works here.
688 self.pg0.ip6_ra_config(send_unicast=1)
689 self.send_and_expect_ra(self.pg0, pkts, "Rate limit reset RS")
692 # An RS sent from a non-link local source
694 self.pg0.ip6_ra_config(send_unicast=1)
695 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
696 IPv6(dst=self.pg0.local_ip6,
700 self.send_and_assert_no_replies(self.pg0, pkts,
701 "RS from non-link source")
704 # Source an RS from a link local address
706 self.pg0.ip6_ra_config(send_unicast=1)
707 ll = mk_ll_addr(self.pg0.remote_mac)
708 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
709 IPv6(dst=self.pg0.local_ip6, src=ll) /
712 self.send_and_expect_ra(self.pg0, pkts,
713 "RS sourced from link-local",
717 # Send the RS multicast
719 self.pg0.ip6_ra_config(send_unicast=1)
720 dmac = in6_getnsmac(inet_pton(AF_INET6, "ff02::2"))
721 ll = mk_ll_addr(self.pg0.remote_mac)
722 p = (Ether(dst=dmac, src=self.pg0.remote_mac) /
723 IPv6(dst="ff02::2", src=ll) /
726 self.send_and_expect_ra(self.pg0, pkts,
727 "RS sourced from link-local",
731 # Source from the unspecified address ::. This happens when the RS
732 # is sent before the host has a configured address/sub-net,
733 # i.e. auto-config. Since the sender has no IP address, the reply
734 # comes back mcast - so the capture needs to not filter this.
735 # If we happen to pick up the periodic RA at this point then so be it,
738 self.pg0.ip6_ra_config(send_unicast=1, suppress=1)
739 p = (Ether(dst=dmac, src=self.pg0.remote_mac) /
740 IPv6(dst="ff02::2", src="::") /
743 self.send_and_expect_ra(self.pg0, pkts,
744 "RS sourced from unspecified",
749 # Configure The RA to announce the links prefix
751 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
752 self.pg0.local_ip6_prefix_len))
755 # RAs should now contain the prefix information option
757 opt = ICMPv6NDOptPrefixInfo(
758 prefixlen=self.pg0.local_ip6_prefix_len,
759 prefix=self.pg0.local_ip6,
763 self.pg0.ip6_ra_config(send_unicast=1)
764 ll = mk_ll_addr(self.pg0.remote_mac)
765 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
766 IPv6(dst=self.pg0.local_ip6, src=ll) /
768 self.send_and_expect_ra(self.pg0, p,
769 "RA with prefix-info",
774 # Change the prefix info to not off-link
777 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
778 self.pg0.local_ip6_prefix_len),
781 opt = ICMPv6NDOptPrefixInfo(
782 prefixlen=self.pg0.local_ip6_prefix_len,
783 prefix=self.pg0.local_ip6,
787 self.pg0.ip6_ra_config(send_unicast=1)
788 self.send_and_expect_ra(self.pg0, p,
789 "RA with Prefix info with L-flag=0",
794 # Change the prefix info to not off-link, no-autoconfig
795 # L and A flag are clear in the advert
797 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
798 self.pg0.local_ip6_prefix_len),
802 opt = ICMPv6NDOptPrefixInfo(
803 prefixlen=self.pg0.local_ip6_prefix_len,
804 prefix=self.pg0.local_ip6,
808 self.pg0.ip6_ra_config(send_unicast=1)
809 self.send_and_expect_ra(self.pg0, p,
810 "RA with Prefix info with A & L-flag=0",
815 # Change the flag settings back to the defaults
816 # L and A flag are set in the advert
818 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
819 self.pg0.local_ip6_prefix_len))
821 opt = ICMPv6NDOptPrefixInfo(
822 prefixlen=self.pg0.local_ip6_prefix_len,
823 prefix=self.pg0.local_ip6,
827 self.pg0.ip6_ra_config(send_unicast=1)
828 self.send_and_expect_ra(self.pg0, p,
829 "RA with Prefix info",
834 # Change the prefix info to not off-link, no-autoconfig
835 # L and A flag are clear in the advert
837 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
838 self.pg0.local_ip6_prefix_len),
842 opt = ICMPv6NDOptPrefixInfo(
843 prefixlen=self.pg0.local_ip6_prefix_len,
844 prefix=self.pg0.local_ip6,
848 self.pg0.ip6_ra_config(send_unicast=1)
849 self.send_and_expect_ra(self.pg0, p,
850 "RA with Prefix info with A & L-flag=0",
855 # Use the reset to defaults option to revert to defaults
856 # L and A flag are clear in the advert
858 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
859 self.pg0.local_ip6_prefix_len),
862 opt = ICMPv6NDOptPrefixInfo(
863 prefixlen=self.pg0.local_ip6_prefix_len,
864 prefix=self.pg0.local_ip6,
868 self.pg0.ip6_ra_config(send_unicast=1)
869 self.send_and_expect_ra(self.pg0, p,
870 "RA with Prefix reverted to defaults",
875 # Advertise Another prefix. With no L-flag/A-flag
877 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg1.local_ip6,
878 self.pg1.local_ip6_prefix_len),
882 opt = [ICMPv6NDOptPrefixInfo(
883 prefixlen=self.pg0.local_ip6_prefix_len,
884 prefix=self.pg0.local_ip6,
887 ICMPv6NDOptPrefixInfo(
888 prefixlen=self.pg1.local_ip6_prefix_len,
889 prefix=self.pg1.local_ip6,
893 self.pg0.ip6_ra_config(send_unicast=1)
894 ll = mk_ll_addr(self.pg0.remote_mac)
895 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
896 IPv6(dst=self.pg0.local_ip6, src=ll) /
898 self.send_and_expect_ra(self.pg0, p,
899 "RA with multiple Prefix infos",
904 # Remove the first prefix-info - expect the second is still in the
907 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
908 self.pg0.local_ip6_prefix_len),
911 opt = ICMPv6NDOptPrefixInfo(
912 prefixlen=self.pg1.local_ip6_prefix_len,
913 prefix=self.pg1.local_ip6,
917 self.pg0.ip6_ra_config(send_unicast=1)
918 self.send_and_expect_ra(self.pg0, p,
919 "RA with Prefix reverted to defaults",
924 # Remove the second prefix-info - expect no prefix-info in the adverts
926 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg1.local_ip6,
927 self.pg1.local_ip6_prefix_len),
931 # change the link's link local, so we know that works too.
933 self.vapi.sw_interface_ip6_set_link_local_address(
934 sw_if_index=self.pg0.sw_if_index,
937 self.pg0.ip6_ra_config(send_unicast=1)
938 self.send_and_expect_ra(self.pg0, p,
939 "RA with Prefix reverted to defaults",
944 # Reset the periodic advertisements back to default values
946 self.pg0.ip6_ra_config(no=1, suppress=1, send_unicast=0)
949 class TestIPv6IfAddrRoute(VppTestCase):
950 """ IPv6 Interface Addr Route Test Case """
954 super(TestIPv6IfAddrRoute, cls).setUpClass()
957 def tearDownClass(cls):
958 super(TestIPv6IfAddrRoute, cls).tearDownClass()
961 super(TestIPv6IfAddrRoute, self).setUp()
963 # create 1 pg interface
964 self.create_pg_interfaces(range(1))
966 for i in self.pg_interfaces:
972 super(TestIPv6IfAddrRoute, self).tearDown()
973 for i in self.pg_interfaces:
977 def test_ipv6_ifaddrs_same_prefix(self):
978 """ IPv6 Interface Addresses Same Prefix test
982 - Verify no route in FIB for prefix 2001:10::/64
983 - Configure IPv4 address 2001:10::10/64 on an interface
984 - Verify route in FIB for prefix 2001:10::/64
985 - Configure IPv4 address 2001:10::20/64 on an interface
986 - Delete 2001:10::10/64 from interface
987 - Verify route in FIB for prefix 2001:10::/64
988 - Delete 2001:10::20/64 from interface
989 - Verify no route in FIB for prefix 2001:10::/64
992 addr1 = "2001:10::10"
993 addr2 = "2001:10::20"
995 if_addr1 = VppIpInterfaceAddress(self, self.pg0, addr1, 64)
996 if_addr2 = VppIpInterfaceAddress(self, self.pg0, addr2, 64)
997 self.assertFalse(if_addr1.query_vpp_config())
998 self.assertFalse(find_route(self, addr1, 128))
999 self.assertFalse(find_route(self, addr2, 128))
1001 # configure first address, verify route present
1002 if_addr1.add_vpp_config()
1003 self.assertTrue(if_addr1.query_vpp_config())
1004 self.assertTrue(find_route(self, addr1, 128))
1005 self.assertFalse(find_route(self, addr2, 128))
1007 # configure second address, delete first, verify route not removed
1008 if_addr2.add_vpp_config()
1009 if_addr1.remove_vpp_config()
1010 self.assertFalse(if_addr1.query_vpp_config())
1011 self.assertTrue(if_addr2.query_vpp_config())
1012 self.assertFalse(find_route(self, addr1, 128))
1013 self.assertTrue(find_route(self, addr2, 128))
1015 # delete second address, verify route removed
1016 if_addr2.remove_vpp_config()
1017 self.assertFalse(if_addr1.query_vpp_config())
1018 self.assertFalse(find_route(self, addr1, 128))
1019 self.assertFalse(find_route(self, addr2, 128))
1022 class TestICMPv6Echo(VppTestCase):
1023 """ ICMPv6 Echo Test Case """
1026 def setUpClass(cls):
1027 super(TestICMPv6Echo, cls).setUpClass()
1030 def tearDownClass(cls):
1031 super(TestICMPv6Echo, cls).tearDownClass()
1034 super(TestICMPv6Echo, self).setUp()
1036 # create 1 pg interface
1037 self.create_pg_interfaces(range(1))
1039 for i in self.pg_interfaces:
1045 super(TestICMPv6Echo, self).tearDown()
1046 for i in self.pg_interfaces:
1050 def test_icmpv6_echo(self):
1051 """ VPP replies to ICMPv6 Echo Request
1055 - Receive ICMPv6 Echo Request message on pg0 interface.
1056 - Check outgoing ICMPv6 Echo Reply message on pg0 interface.
1061 icmpv6_data = b'\x0a' * 18
1062 p_echo_request = (Ether(src=self.pg0.remote_mac,
1063 dst=self.pg0.local_mac) /
1064 IPv6(src=self.pg0.remote_ip6,
1065 dst=self.pg0.local_ip6) /
1071 self.pg0.add_stream(p_echo_request)
1072 self.pg_enable_capture(self.pg_interfaces)
1075 rx = self.pg0.get_capture(1)
1079 icmpv6 = rx[ICMPv6EchoReply]
1081 self.assertEqual(ether.src, self.pg0.local_mac)
1082 self.assertEqual(ether.dst, self.pg0.remote_mac)
1084 self.assertEqual(ipv6.src, self.pg0.local_ip6)
1085 self.assertEqual(ipv6.dst, self.pg0.remote_ip6)
1088 icmp6types[icmpv6.type], "Echo Reply")
1089 self.assertEqual(icmpv6.id, icmpv6_id)
1090 self.assertEqual(icmpv6.seq, icmpv6_seq)
1091 self.assertEqual(icmpv6.data, icmpv6_data)
1094 class TestIPv6RD(TestIPv6ND):
1095 """ IPv6 Router Discovery Test Case """
1098 def setUpClass(cls):
1099 super(TestIPv6RD, cls).setUpClass()
1102 def tearDownClass(cls):
1103 super(TestIPv6RD, cls).tearDownClass()
1106 super(TestIPv6RD, self).setUp()
1108 # create 2 pg interfaces
1109 self.create_pg_interfaces(range(2))
1111 self.interfaces = list(self.pg_interfaces)
1113 # setup all interfaces
1114 for i in self.interfaces:
1119 for i in self.interfaces:
1122 super(TestIPv6RD, self).tearDown()
1124 def test_rd_send_router_solicitation(self):
1125 """ Verify router solicitation packets """
1128 self.pg_enable_capture(self.pg_interfaces)
1130 self.vapi.ip6nd_send_router_solicitation(self.pg1.sw_if_index,
1132 rx_list = self.pg1.get_capture(count, timeout=3)
1133 self.assertEqual(len(rx_list), count)
1134 for packet in rx_list:
1135 self.assertEqual(packet.haslayer(IPv6), 1)
1136 self.assertEqual(packet[IPv6].haslayer(
1138 dst = ip6_normalize(packet[IPv6].dst)
1139 dst2 = ip6_normalize("ff02::2")
1140 self.assert_equal(dst, dst2)
1141 src = ip6_normalize(packet[IPv6].src)
1142 src2 = ip6_normalize(self.pg1.local_ip6_ll)
1143 self.assert_equal(src, src2)
1145 bool(packet[ICMPv6ND_RS].haslayer(
1146 ICMPv6NDOptSrcLLAddr)))
1148 packet[ICMPv6NDOptSrcLLAddr].lladdr,
1151 def verify_prefix_info(self, reported_prefix, prefix_option):
1152 prefix = IPv6Network(
1153 text_type(prefix_option.getfieldval("prefix") +
1155 text_type(prefix_option.getfieldval("prefixlen"))),
1157 self.assert_equal(reported_prefix.prefix.network_address,
1158 prefix.network_address)
1159 L = prefix_option.getfieldval("L")
1160 A = prefix_option.getfieldval("A")
1161 option_flags = (L << 7) | (A << 6)
1162 self.assert_equal(reported_prefix.flags, option_flags)
1163 self.assert_equal(reported_prefix.valid_time,
1164 prefix_option.getfieldval("validlifetime"))
1165 self.assert_equal(reported_prefix.preferred_time,
1166 prefix_option.getfieldval("preferredlifetime"))
1168 def test_rd_receive_router_advertisement(self):
1169 """ Verify events triggered by received RA packets """
1171 self.vapi.want_ip6_ra_events(enable=1)
1173 prefix_info_1 = ICMPv6NDOptPrefixInfo(
1177 preferredlifetime=500,
1182 prefix_info_2 = ICMPv6NDOptPrefixInfo(
1186 preferredlifetime=1000,
1191 p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
1192 IPv6(dst=self.pg1.local_ip6_ll,
1193 src=mk_ll_addr(self.pg1.remote_mac)) /
1197 self.pg1.add_stream([p])
1200 ev = self.vapi.wait_for_event(10, "ip6_ra_event")
1202 self.assert_equal(ev.current_hop_limit, 0)
1203 self.assert_equal(ev.flags, 8)
1204 self.assert_equal(ev.router_lifetime_in_sec, 1800)
1205 self.assert_equal(ev.neighbor_reachable_time_in_msec, 0)
1207 ev.time_in_msec_between_retransmitted_neighbor_solicitations, 0)
1209 self.assert_equal(ev.n_prefixes, 2)
1211 self.verify_prefix_info(ev.prefixes[0], prefix_info_1)
1212 self.verify_prefix_info(ev.prefixes[1], prefix_info_2)
1215 class TestIPv6RDControlPlane(TestIPv6ND):
1216 """ IPv6 Router Discovery Control Plane Test Case """
1219 def setUpClass(cls):
1220 super(TestIPv6RDControlPlane, cls).setUpClass()
1223 def tearDownClass(cls):
1224 super(TestIPv6RDControlPlane, cls).tearDownClass()
1227 super(TestIPv6RDControlPlane, self).setUp()
1229 # create 1 pg interface
1230 self.create_pg_interfaces(range(1))
1232 self.interfaces = list(self.pg_interfaces)
1234 # setup all interfaces
1235 for i in self.interfaces:
1240 super(TestIPv6RDControlPlane, self).tearDown()
1243 def create_ra_packet(pg, routerlifetime=None):
1244 src_ip = pg.remote_ip6_ll
1245 dst_ip = pg.local_ip6
1246 if routerlifetime is not None:
1247 ra = ICMPv6ND_RA(routerlifetime=routerlifetime)
1250 p = (Ether(dst=pg.local_mac, src=pg.remote_mac) /
1251 IPv6(dst=dst_ip, src=src_ip) / ra)
1255 def get_default_routes(fib):
1258 if entry.route.prefix.prefixlen == 0:
1259 for path in entry.route.paths:
1260 if path.sw_if_index != 0xFFFFFFFF:
1262 defaut_route['sw_if_index'] = path.sw_if_index
1263 defaut_route['next_hop'] = path.nh.address.ip6
1264 list.append(defaut_route)
1268 def get_interface_addresses(fib, pg):
1271 if entry.route.prefix.prefixlen == 128:
1272 path = entry.route.paths[0]
1273 if path.sw_if_index == pg.sw_if_index:
1274 list.append(str(entry.route.prefix.network_address))
1277 def wait_for_no_default_route(self, n_tries=50, s_time=1):
1279 fib = self.vapi.ip_route_dump(0, True)
1280 default_routes = self.get_default_routes(fib)
1281 if 0 is len(default_routes):
1283 n_tries = n_tries - 1
1289 """ Test handling of SLAAC addresses and default routes """
1291 fib = self.vapi.ip_route_dump(0, True)
1292 default_routes = self.get_default_routes(fib)
1293 initial_addresses = set(self.get_interface_addresses(fib, self.pg0))
1294 self.assertEqual(default_routes, [])
1295 router_address = IPv6Address(text_type(self.pg0.remote_ip6_ll))
1297 self.vapi.ip6_nd_address_autoconfig(self.pg0.sw_if_index, 1, 1)
1302 packet = (self.create_ra_packet(
1303 self.pg0) / ICMPv6NDOptPrefixInfo(
1307 preferredlifetime=2,
1310 ) / ICMPv6NDOptPrefixInfo(
1314 preferredlifetime=1000,
1318 self.pg0.add_stream([packet])
1321 self.sleep_on_vpp_time(0.1)
1323 fib = self.vapi.ip_route_dump(0, True)
1325 # check FIB for new address
1326 addresses = set(self.get_interface_addresses(fib, self.pg0))
1327 new_addresses = addresses.difference(initial_addresses)
1328 self.assertEqual(len(new_addresses), 1)
1329 prefix = IPv6Network(text_type("%s/%d" % (list(new_addresses)[0], 20)),
1331 self.assertEqual(prefix, IPv6Network(text_type('1::/20')))
1333 # check FIB for new default route
1334 default_routes = self.get_default_routes(fib)
1335 self.assertEqual(len(default_routes), 1)
1336 dr = default_routes[0]
1337 self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
1338 self.assertEqual(dr['next_hop'], router_address)
1340 # send RA to delete default route
1341 packet = self.create_ra_packet(self.pg0, routerlifetime=0)
1342 self.pg0.add_stream([packet])
1345 self.sleep_on_vpp_time(0.1)
1347 # check that default route is deleted
1348 fib = self.vapi.ip_route_dump(0, True)
1349 default_routes = self.get_default_routes(fib)
1350 self.assertEqual(len(default_routes), 0)
1352 self.sleep_on_vpp_time(0.1)
1355 packet = self.create_ra_packet(self.pg0)
1356 self.pg0.add_stream([packet])
1359 self.sleep_on_vpp_time(0.1)
1361 # check FIB for new default route
1362 fib = self.vapi.ip_route_dump(0, True)
1363 default_routes = self.get_default_routes(fib)
1364 self.assertEqual(len(default_routes), 1)
1365 dr = default_routes[0]
1366 self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
1367 self.assertEqual(dr['next_hop'], router_address)
1369 # send RA, updating router lifetime to 1s
1370 packet = self.create_ra_packet(self.pg0, 1)
1371 self.pg0.add_stream([packet])
1374 self.sleep_on_vpp_time(0.1)
1376 # check that default route still exists
1377 fib = self.vapi.ip_route_dump(0, True)
1378 default_routes = self.get_default_routes(fib)
1379 self.assertEqual(len(default_routes), 1)
1380 dr = default_routes[0]
1381 self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
1382 self.assertEqual(dr['next_hop'], router_address)
1384 self.sleep_on_vpp_time(1)
1386 # check that default route is deleted
1387 self.assertTrue(self.wait_for_no_default_route())
1389 # check FIB still contains the SLAAC address
1390 addresses = set(self.get_interface_addresses(fib, self.pg0))
1391 new_addresses = addresses.difference(initial_addresses)
1393 self.assertEqual(len(new_addresses), 1)
1394 prefix = IPv6Network(text_type("%s/%d" % (list(new_addresses)[0], 20)),
1396 self.assertEqual(prefix, IPv6Network(text_type('1::/20')))
1398 self.sleep_on_vpp_time(1)
1400 # check that SLAAC address is deleted
1401 fib = self.vapi.ip_route_dump(0, True)
1402 addresses = set(self.get_interface_addresses(fib, self.pg0))
1403 new_addresses = addresses.difference(initial_addresses)
1404 self.assertEqual(len(new_addresses), 0)
1407 class IPv6NDProxyTest(TestIPv6ND):
1408 """ IPv6 ND ProxyTest Case """
1411 def setUpClass(cls):
1412 super(IPv6NDProxyTest, cls).setUpClass()
1415 def tearDownClass(cls):
1416 super(IPv6NDProxyTest, cls).tearDownClass()
1419 super(IPv6NDProxyTest, self).setUp()
1421 # create 3 pg interfaces
1422 self.create_pg_interfaces(range(3))
1424 # pg0 is the master interface, with the configured subnet
1426 self.pg0.config_ip6()
1427 self.pg0.resolve_ndp()
1429 self.pg1.ip6_enable()
1430 self.pg2.ip6_enable()
1433 super(IPv6NDProxyTest, self).tearDown()
1435 def test_nd_proxy(self):
1436 """ IPv6 Proxy ND """
1439 # Generate some hosts in the subnet that we are proxying
1441 self.pg0.generate_remote_hosts(8)
1443 nsma = in6_getnsma(inet_pton(AF_INET6, self.pg0.local_ip6))
1444 d = inet_ntop(AF_INET6, nsma)
1447 # Send an NS for one of those remote hosts on one of the proxy links
1448 # expect no response since it's from an address that is not
1449 # on the link that has the prefix configured
1451 ns_pg1 = (Ether(dst=in6_getnsmac(nsma), src=self.pg1.remote_mac) /
1453 src=self.pg0._remote_hosts[2].ip6) /
1454 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
1455 ICMPv6NDOptSrcLLAddr(
1456 lladdr=self.pg0._remote_hosts[2].mac))
1458 self.send_and_assert_no_replies(self.pg1, ns_pg1, "Off link NS")
1461 # Add proxy support for the host
1463 self.vapi.ip6nd_proxy_add_del(
1464 is_add=1, ip=inet_pton(AF_INET6, self.pg0._remote_hosts[2].ip6),
1465 sw_if_index=self.pg1.sw_if_index)
1468 # try that NS again. this time we expect an NA back
1470 self.send_and_expect_na(self.pg1, ns_pg1,
1471 "NS to proxy entry",
1472 dst_ip=self.pg0._remote_hosts[2].ip6,
1473 tgt_ip=self.pg0.local_ip6)
1476 # ... and that we have an entry in the ND cache
1478 self.assertTrue(find_nbr(self,
1479 self.pg1.sw_if_index,
1480 self.pg0._remote_hosts[2].ip6))
1483 # ... and we can route traffic to it
1485 t = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
1486 IPv6(dst=self.pg0._remote_hosts[2].ip6,
1487 src=self.pg0.remote_ip6) /
1488 inet6.UDP(sport=10000, dport=20000) /
1491 self.pg0.add_stream(t)
1492 self.pg_enable_capture(self.pg_interfaces)
1494 rx = self.pg1.get_capture(1)
1497 self.assertEqual(rx[Ether].dst, self.pg0._remote_hosts[2].mac)
1498 self.assertEqual(rx[Ether].src, self.pg1.local_mac)
1500 self.assertEqual(rx[IPv6].src,
1502 self.assertEqual(rx[IPv6].dst,
1506 # Test we proxy for the host on the main interface
1508 ns_pg0 = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
1509 IPv6(dst=d, src=self.pg0.remote_ip6) /
1511 tgt=self.pg0._remote_hosts[2].ip6) /
1512 ICMPv6NDOptSrcLLAddr(
1513 lladdr=self.pg0.remote_mac))
1515 self.send_and_expect_na(self.pg0, ns_pg0,
1516 "NS to proxy entry on main",
1517 tgt_ip=self.pg0._remote_hosts[2].ip6,
1518 dst_ip=self.pg0.remote_ip6)
1521 # Setup and resolve proxy for another host on another interface
1523 ns_pg2 = (Ether(dst=in6_getnsmac(nsma), src=self.pg2.remote_mac) /
1525 src=self.pg0._remote_hosts[3].ip6) /
1526 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
1527 ICMPv6NDOptSrcLLAddr(
1528 lladdr=self.pg0._remote_hosts[2].mac))
1530 self.vapi.ip6nd_proxy_add_del(
1531 is_add=1, ip=inet_pton(AF_INET6, self.pg0._remote_hosts[3].ip6),
1532 sw_if_index=self.pg2.sw_if_index)
1534 self.send_and_expect_na(self.pg2, ns_pg2,
1535 "NS to proxy entry other interface",
1536 dst_ip=self.pg0._remote_hosts[3].ip6,
1537 tgt_ip=self.pg0.local_ip6)
1539 self.assertTrue(find_nbr(self,
1540 self.pg2.sw_if_index,
1541 self.pg0._remote_hosts[3].ip6))
1544 # hosts can communicate. pg2->pg1
1546 t2 = (Ether(dst=self.pg2.local_mac,
1547 src=self.pg0.remote_hosts[3].mac) /
1548 IPv6(dst=self.pg0._remote_hosts[2].ip6,
1549 src=self.pg0._remote_hosts[3].ip6) /
1550 inet6.UDP(sport=10000, dport=20000) /
1553 self.pg2.add_stream(t2)
1554 self.pg_enable_capture(self.pg_interfaces)
1556 rx = self.pg1.get_capture(1)
1559 self.assertEqual(rx[Ether].dst, self.pg0._remote_hosts[2].mac)
1560 self.assertEqual(rx[Ether].src, self.pg1.local_mac)
1562 self.assertEqual(rx[IPv6].src,
1564 self.assertEqual(rx[IPv6].dst,
1568 # remove the proxy configs
1570 self.vapi.ip6nd_proxy_add_del(
1571 ip=inet_pton(AF_INET6, self.pg0._remote_hosts[2].ip6),
1572 sw_if_index=self.pg1.sw_if_index, is_add=0)
1573 self.vapi.ip6nd_proxy_add_del(
1574 ip=inet_pton(AF_INET6, self.pg0._remote_hosts[3].ip6),
1575 sw_if_index=self.pg2.sw_if_index, is_add=0)
1577 self.assertFalse(find_nbr(self,
1578 self.pg2.sw_if_index,
1579 self.pg0._remote_hosts[3].ip6))
1580 self.assertFalse(find_nbr(self,
1581 self.pg1.sw_if_index,
1582 self.pg0._remote_hosts[2].ip6))
1585 # no longer proxy-ing...
1587 self.send_and_assert_no_replies(self.pg0, ns_pg0, "Proxy unconfigured")
1588 self.send_and_assert_no_replies(self.pg1, ns_pg1, "Proxy unconfigured")
1589 self.send_and_assert_no_replies(self.pg2, ns_pg2, "Proxy unconfigured")
1592 # no longer forwarding. traffic generates NS out of the glean/main
1595 self.pg2.add_stream(t2)
1596 self.pg_enable_capture(self.pg_interfaces)
1599 rx = self.pg0.get_capture(1)
1601 self.assertTrue(rx[0].haslayer(ICMPv6ND_NS))
1604 class TestIPNull(VppTestCase):
1605 """ IPv6 routes via NULL """
1608 def setUpClass(cls):
1609 super(TestIPNull, cls).setUpClass()
1612 def tearDownClass(cls):
1613 super(TestIPNull, cls).tearDownClass()
1616 super(TestIPNull, self).setUp()
1618 # create 2 pg interfaces
1619 self.create_pg_interfaces(range(1))
1621 for i in self.pg_interfaces:
1627 super(TestIPNull, self).tearDown()
1628 for i in self.pg_interfaces:
1632 def test_ip_null(self):
1633 """ IP NULL route """
1635 p = (Ether(src=self.pg0.remote_mac,
1636 dst=self.pg0.local_mac) /
1637 IPv6(src=self.pg0.remote_ip6, dst="2001::1") /
1638 inet6.UDP(sport=1234, dport=1234) /
1642 # A route via IP NULL that will reply with ICMP unreachables
1644 ip_unreach = VppIpRoute(
1646 [VppRoutePath("::", 0xffffffff,
1647 type=FibPathType.FIB_PATH_TYPE_ICMP_UNREACH)])
1648 ip_unreach.add_vpp_config()
1650 self.pg0.add_stream(p)
1651 self.pg_enable_capture(self.pg_interfaces)
1654 rx = self.pg0.get_capture(1)
1656 icmp = rx[ICMPv6DestUnreach]
1658 # 0 = "No route to destination"
1659 self.assertEqual(icmp.code, 0)
1661 # ICMP is rate limited. pause a bit
1665 # A route via IP NULL that will reply with ICMP prohibited
1667 ip_prohibit = VppIpRoute(
1668 self, "2001::1", 128,
1669 [VppRoutePath("::", 0xffffffff,
1670 type=FibPathType.FIB_PATH_TYPE_ICMP_PROHIBIT)])
1671 ip_prohibit.add_vpp_config()
1673 self.pg0.add_stream(p)
1674 self.pg_enable_capture(self.pg_interfaces)
1677 rx = self.pg0.get_capture(1)
1679 icmp = rx[ICMPv6DestUnreach]
1681 # 1 = "Communication with destination administratively prohibited"
1682 self.assertEqual(icmp.code, 1)
1685 class TestIPDisabled(VppTestCase):
1686 """ IPv6 disabled """
1689 def setUpClass(cls):
1690 super(TestIPDisabled, cls).setUpClass()
1693 def tearDownClass(cls):
1694 super(TestIPDisabled, cls).tearDownClass()
1697 super(TestIPDisabled, self).setUp()
1699 # create 2 pg interfaces
1700 self.create_pg_interfaces(range(2))
1704 self.pg0.config_ip6()
1705 self.pg0.resolve_ndp()
1707 # PG 1 is not IP enabled
1711 super(TestIPDisabled, self).tearDown()
1712 for i in self.pg_interfaces:
1716 def test_ip_disabled(self):
1721 # one accepting interface, pg0, 2 forwarding interfaces
1723 route_ff_01 = VppIpMRoute(
1727 MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
1728 [VppMRoutePath(self.pg1.sw_if_index,
1729 MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
1730 VppMRoutePath(self.pg0.sw_if_index,
1731 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
1732 route_ff_01.add_vpp_config()
1734 pu = (Ether(src=self.pg1.remote_mac,
1735 dst=self.pg1.local_mac) /
1736 IPv6(src="2001::1", dst=self.pg0.remote_ip6) /
1737 inet6.UDP(sport=1234, dport=1234) /
1739 pm = (Ether(src=self.pg1.remote_mac,
1740 dst=self.pg1.local_mac) /
1741 IPv6(src="2001::1", dst="ffef::1") /
1742 inet6.UDP(sport=1234, dport=1234) /
1746 # PG1 does not forward IP traffic
1748 self.send_and_assert_no_replies(self.pg1, pu, "IPv6 disabled")
1749 self.send_and_assert_no_replies(self.pg1, pm, "IPv6 disabled")
1754 self.pg1.config_ip6()
1757 # Now we get packets through
1759 self.pg1.add_stream(pu)
1760 self.pg_enable_capture(self.pg_interfaces)
1762 rx = self.pg0.get_capture(1)
1764 self.pg1.add_stream(pm)
1765 self.pg_enable_capture(self.pg_interfaces)
1767 rx = self.pg0.get_capture(1)
1772 self.pg1.unconfig_ip6()
1775 # PG1 does not forward IP traffic
1777 self.send_and_assert_no_replies(self.pg1, pu, "IPv6 disabled")
1778 self.send_and_assert_no_replies(self.pg1, pm, "IPv6 disabled")
1781 class TestIP6LoadBalance(VppTestCase):
1782 """ IPv6 Load-Balancing """
1785 def setUpClass(cls):
1786 super(TestIP6LoadBalance, cls).setUpClass()
1789 def tearDownClass(cls):
1790 super(TestIP6LoadBalance, cls).tearDownClass()
1793 super(TestIP6LoadBalance, self).setUp()
1795 self.create_pg_interfaces(range(5))
1797 mpls_tbl = VppMplsTable(self, 0)
1798 mpls_tbl.add_vpp_config()
1800 for i in self.pg_interfaces:
1807 for i in self.pg_interfaces:
1811 super(TestIP6LoadBalance, self).tearDown()
1813 def pg_send(self, input, pkts):
1814 self.vapi.cli("clear trace")
1815 input.add_stream(pkts)
1816 self.pg_enable_capture(self.pg_interfaces)
1819 def send_and_expect_load_balancing(self, input, pkts, outputs):
1820 self.pg_send(input, pkts)
1822 rx = oo._get_capture(1)
1823 self.assertNotEqual(0, len(rx))
1825 def send_and_expect_one_itf(self, input, pkts, itf):
1826 self.pg_send(input, pkts)
1827 rx = itf.get_capture(len(pkts))
1829 def test_ip6_load_balance(self):
1830 """ IPv6 Load-Balancing """
1833 # An array of packets that differ only in the destination port
1837 # - MPLS non-EOS with an entropy label
1841 port_mpls_neos_pkts = []
1845 # An array of packets that differ only in the source address
1850 for ii in range(NUM_PKTS):
1852 IPv6(dst="3000::1", src="3000:1::1") /
1853 inet6.UDP(sport=1234, dport=1234 + ii) /
1855 port_ip_pkts.append((Ether(src=self.pg0.remote_mac,
1856 dst=self.pg0.local_mac) /
1858 port_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
1859 dst=self.pg0.local_mac) /
1860 MPLS(label=66, ttl=2) /
1862 port_mpls_neos_pkts.append((Ether(src=self.pg0.remote_mac,
1863 dst=self.pg0.local_mac) /
1864 MPLS(label=67, ttl=2) /
1865 MPLS(label=77, ttl=2) /
1867 port_ent_pkts.append((Ether(src=self.pg0.remote_mac,
1868 dst=self.pg0.local_mac) /
1869 MPLS(label=67, ttl=2) /
1870 MPLS(label=14, ttl=2) /
1871 MPLS(label=999, ttl=2) /
1874 IPv6(dst="3000::1", src="3000:1::%d" % ii) /
1875 inet6.UDP(sport=1234, dport=1234) /
1877 src_ip_pkts.append((Ether(src=self.pg0.remote_mac,
1878 dst=self.pg0.local_mac) /
1880 src_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
1881 dst=self.pg0.local_mac) /
1882 MPLS(label=66, ttl=2) /
1886 # A route for the IP packets
1888 route_3000_1 = VppIpRoute(self, "3000::1", 128,
1889 [VppRoutePath(self.pg1.remote_ip6,
1890 self.pg1.sw_if_index),
1891 VppRoutePath(self.pg2.remote_ip6,
1892 self.pg2.sw_if_index)])
1893 route_3000_1.add_vpp_config()
1896 # a local-label for the EOS packets
1898 binding = VppMplsIpBind(self, 66, "3000::1", 128, is_ip6=1)
1899 binding.add_vpp_config()
1902 # An MPLS route for the non-EOS packets
1904 route_67 = VppMplsRoute(self, 67, 0,
1905 [VppRoutePath(self.pg1.remote_ip6,
1906 self.pg1.sw_if_index,
1908 VppRoutePath(self.pg2.remote_ip6,
1909 self.pg2.sw_if_index,
1911 route_67.add_vpp_config()
1914 # inject the packet on pg0 - expect load-balancing across the 2 paths
1915 # - since the default hash config is to use IP src,dst and port
1917 # We are not going to ensure equal amounts of packets across each link,
1918 # since the hash algorithm is statistical and therefore this can never
1919 # be guaranteed. But with 64 different packets we do expect some
1920 # balancing. So instead just ensure there is traffic on each link.
1922 self.send_and_expect_load_balancing(self.pg0, port_ip_pkts,
1923 [self.pg1, self.pg2])
1924 self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
1925 [self.pg1, self.pg2])
1926 self.send_and_expect_load_balancing(self.pg0, port_mpls_pkts,
1927 [self.pg1, self.pg2])
1928 self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
1929 [self.pg1, self.pg2])
1930 self.send_and_expect_load_balancing(self.pg0, port_mpls_neos_pkts,
1931 [self.pg1, self.pg2])
1934 # The packets with Entropy label in should not load-balance,
1935 # since the Entropy value is fixed.
1937 self.send_and_expect_one_itf(self.pg0, port_ent_pkts, self.pg1)
1940 # change the flow hash config so it's only IP src,dst
1941 # - now only the stream with differing source address will
1944 self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, sport=0, dport=0,
1947 self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
1948 [self.pg1, self.pg2])
1949 self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
1950 [self.pg1, self.pg2])
1951 self.send_and_expect_one_itf(self.pg0, port_ip_pkts, self.pg2)
1954 # change the flow hash config back to defaults
1956 self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, sport=1, dport=1,
1960 # Recursive prefixes
1961 # - testing that 2 stages of load-balancing occurs and there is no
1962 # polarisation (i.e. only 2 of 4 paths are used)
1967 for ii in range(257):
1968 port_pkts.append((Ether(src=self.pg0.remote_mac,
1969 dst=self.pg0.local_mac) /
1972 inet6.UDP(sport=1234,
1974 Raw(b'\xa5' * 100)))
1975 src_pkts.append((Ether(src=self.pg0.remote_mac,
1976 dst=self.pg0.local_mac) /
1978 src="4000:1::%d" % ii) /
1979 inet6.UDP(sport=1234, dport=1234) /
1980 Raw(b'\xa5' * 100)))
1982 route_3000_2 = VppIpRoute(self, "3000::2", 128,
1983 [VppRoutePath(self.pg3.remote_ip6,
1984 self.pg3.sw_if_index),
1985 VppRoutePath(self.pg4.remote_ip6,
1986 self.pg4.sw_if_index)])
1987 route_3000_2.add_vpp_config()
1989 route_4000_1 = VppIpRoute(self, "4000::1", 128,
1990 [VppRoutePath("3000::1",
1992 VppRoutePath("3000::2",
1994 route_4000_1.add_vpp_config()
1997 # inject the packet on pg0 - expect load-balancing across all 4 paths
1999 self.vapi.cli("clear trace")
2000 self.send_and_expect_load_balancing(self.pg0, port_pkts,
2001 [self.pg1, self.pg2,
2002 self.pg3, self.pg4])
2003 self.send_and_expect_load_balancing(self.pg0, src_pkts,
2004 [self.pg1, self.pg2,
2005 self.pg3, self.pg4])
2008 # Recursive prefixes
2009 # - testing that 2 stages of load-balancing no choices
2013 for ii in range(257):
2014 port_pkts.append((Ether(src=self.pg0.remote_mac,
2015 dst=self.pg0.local_mac) /
2018 inet6.UDP(sport=1234,
2020 Raw(b'\xa5' * 100)))
2022 route_5000_2 = VppIpRoute(self, "5000::2", 128,
2023 [VppRoutePath(self.pg3.remote_ip6,
2024 self.pg3.sw_if_index)])
2025 route_5000_2.add_vpp_config()
2027 route_6000_1 = VppIpRoute(self, "6000::1", 128,
2028 [VppRoutePath("5000::2",
2030 route_6000_1.add_vpp_config()
2033 # inject the packet on pg0 - expect load-balancing across all 4 paths
2035 self.vapi.cli("clear trace")
2036 self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg3)
2039 class TestIP6Punt(VppTestCase):
2040 """ IPv6 Punt Police/Redirect """
2043 def setUpClass(cls):
2044 super(TestIP6Punt, cls).setUpClass()
2047 def tearDownClass(cls):
2048 super(TestIP6Punt, cls).tearDownClass()
2051 super(TestIP6Punt, self).setUp()
2053 self.create_pg_interfaces(range(4))
2055 for i in self.pg_interfaces:
2061 super(TestIP6Punt, self).tearDown()
2062 for i in self.pg_interfaces:
2066 def test_ip_punt(self):
2067 """ IP6 punt police and redirect """
2069 p = (Ether(src=self.pg0.remote_mac,
2070 dst=self.pg0.local_mac) /
2071 IPv6(src=self.pg0.remote_ip6,
2072 dst=self.pg0.local_ip6) /
2073 inet6.TCP(sport=1234, dport=1234) /
2079 # Configure a punt redirect via pg1.
2081 nh_addr = self.pg1.remote_ip6
2082 self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
2083 self.pg1.sw_if_index,
2086 self.send_and_expect(self.pg0, pkts, self.pg1)
2091 policer = self.vapi.policer_add_del(b"ip6-punt", 400, 0, 10, 0,
2093 self.vapi.ip_punt_police(policer.policer_index, is_ip6=1)
2095 self.vapi.cli("clear trace")
2096 self.pg0.add_stream(pkts)
2097 self.pg_enable_capture(self.pg_interfaces)
2101 # the number of packet received should be greater than 0,
2102 # but not equal to the number sent, since some were policed
2104 rx = self.pg1._get_capture(1)
2105 self.assertGreater(len(rx), 0)
2106 self.assertLess(len(rx), len(pkts))
2109 # remove the policer. back to full rx
2111 self.vapi.ip_punt_police(policer.policer_index, is_add=0, is_ip6=1)
2112 self.vapi.policer_add_del(b"ip6-punt", 400, 0, 10, 0,
2113 rate_type=1, is_add=0)
2114 self.send_and_expect(self.pg0, pkts, self.pg1)
2117 # remove the redirect. expect full drop.
2119 self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
2120 self.pg1.sw_if_index,
2123 self.send_and_assert_no_replies(self.pg0, pkts,
2124 "IP no punt config")
2127 # Add a redirect that is not input port selective
2129 self.vapi.ip_punt_redirect(0xffffffff,
2130 self.pg1.sw_if_index,
2132 self.send_and_expect(self.pg0, pkts, self.pg1)
2134 self.vapi.ip_punt_redirect(0xffffffff,
2135 self.pg1.sw_if_index,
2139 def test_ip_punt_dump(self):
2140 """ IP6 punt redirect dump"""
2143 # Configure a punt redirects
2145 nh_addr = self.pg3.remote_ip6
2146 self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
2147 self.pg3.sw_if_index,
2149 self.vapi.ip_punt_redirect(self.pg1.sw_if_index,
2150 self.pg3.sw_if_index,
2152 self.vapi.ip_punt_redirect(self.pg2.sw_if_index,
2153 self.pg3.sw_if_index,
2157 # Dump pg0 punt redirects
2159 punts = self.vapi.ip_punt_redirect_dump(self.pg0.sw_if_index,
2162 self.assertEqual(p.punt.rx_sw_if_index, self.pg0.sw_if_index)
2165 # Dump punt redirects for all interfaces
2167 punts = self.vapi.ip_punt_redirect_dump(0xffffffff, is_ipv6=1)
2168 self.assertEqual(len(punts), 3)
2170 self.assertEqual(p.punt.tx_sw_if_index, self.pg3.sw_if_index)
2171 self.assertNotEqual(punts[1].punt.nh, self.pg3.remote_ip6)
2172 self.assertEqual(str(punts[2].punt.nh), '::')
2175 class TestIPDeag(VppTestCase):
2176 """ IPv6 Deaggregate Routes """
2179 def setUpClass(cls):
2180 super(TestIPDeag, cls).setUpClass()
2183 def tearDownClass(cls):
2184 super(TestIPDeag, cls).tearDownClass()
2187 super(TestIPDeag, self).setUp()
2189 self.create_pg_interfaces(range(3))
2191 for i in self.pg_interfaces:
2197 super(TestIPDeag, self).tearDown()
2198 for i in self.pg_interfaces:
2202 def test_ip_deag(self):
2203 """ IP Deag Routes """
2206 # Create a table to be used for:
2207 # 1 - another destination address lookup
2208 # 2 - a source address lookup
2210 table_dst = VppIpTable(self, 1, is_ip6=1)
2211 table_src = VppIpTable(self, 2, is_ip6=1)
2212 table_dst.add_vpp_config()
2213 table_src.add_vpp_config()
2216 # Add a route in the default table to point to a deag/
2217 # second lookup in each of these tables
2219 route_to_dst = VppIpRoute(self, "1::1", 128,
2223 route_to_src = VppIpRoute(
2228 type=FibPathType.FIB_PATH_TYPE_SOURCE_LOOKUP)])
2230 route_to_dst.add_vpp_config()
2231 route_to_src.add_vpp_config()
2234 # packets to these destination are dropped, since they'll
2235 # hit the respective default routes in the second table
2237 p_dst = (Ether(src=self.pg0.remote_mac,
2238 dst=self.pg0.local_mac) /
2239 IPv6(src="5::5", dst="1::1") /
2240 inet6.TCP(sport=1234, dport=1234) /
2242 p_src = (Ether(src=self.pg0.remote_mac,
2243 dst=self.pg0.local_mac) /
2244 IPv6(src="2::2", dst="1::2") /
2245 inet6.TCP(sport=1234, dport=1234) /
2247 pkts_dst = p_dst * 257
2248 pkts_src = p_src * 257
2250 self.send_and_assert_no_replies(self.pg0, pkts_dst,
2252 self.send_and_assert_no_replies(self.pg0, pkts_src,
2256 # add a route in the dst table to forward via pg1
2258 route_in_dst = VppIpRoute(self, "1::1", 128,
2259 [VppRoutePath(self.pg1.remote_ip6,
2260 self.pg1.sw_if_index)],
2262 route_in_dst.add_vpp_config()
2264 self.send_and_expect(self.pg0, pkts_dst, self.pg1)
2267 # add a route in the src table to forward via pg2
2269 route_in_src = VppIpRoute(self, "2::2", 128,
2270 [VppRoutePath(self.pg2.remote_ip6,
2271 self.pg2.sw_if_index)],
2273 route_in_src.add_vpp_config()
2274 self.send_and_expect(self.pg0, pkts_src, self.pg2)
2277 # loop in the lookup DP
2279 route_loop = VppIpRoute(self, "3::3", 128,
2282 route_loop.add_vpp_config()
2284 p_l = (Ether(src=self.pg0.remote_mac,
2285 dst=self.pg0.local_mac) /
2286 IPv6(src="3::4", dst="3::3") /
2287 inet6.TCP(sport=1234, dport=1234) /
2290 self.send_and_assert_no_replies(self.pg0, p_l * 257,
2294 class TestIP6Input(VppTestCase):
2295 """ IPv6 Input Exception Test Cases """
2298 def setUpClass(cls):
2299 super(TestIP6Input, cls).setUpClass()
2302 def tearDownClass(cls):
2303 super(TestIP6Input, cls).tearDownClass()
2306 super(TestIP6Input, self).setUp()
2308 self.create_pg_interfaces(range(2))
2310 for i in self.pg_interfaces:
2316 super(TestIP6Input, self).tearDown()
2317 for i in self.pg_interfaces:
2321 def test_ip_input_icmp_reply(self):
2322 """ IP6 Input Exception - Return ICMP (3,0) """
2324 # hop limit - ICMP replies
2326 p_version = (Ether(src=self.pg0.remote_mac,
2327 dst=self.pg0.local_mac) /
2328 IPv6(src=self.pg0.remote_ip6,
2329 dst=self.pg1.remote_ip6,
2331 inet6.UDP(sport=1234, dport=1234) /
2334 rx = self.send_and_expect(self.pg0, p_version * NUM_PKTS, self.pg0)
2336 icmp = rx[ICMPv6TimeExceeded]
2338 # 0: "hop limit exceeded in transit",
2339 self.assertEqual((icmp.type, icmp.code), (3, 0))
2341 icmpv6_data = '\x0a' * 18
2343 all_1s = "FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF"
2345 @parameterized.expand([
2346 # Name, src, dst, l4proto, msg, timeout
2347 ("src='iface', dst='iface'", None, None,
2348 inet6.UDP(sport=1234, dport=1234), "funky version", None),
2349 ("src='All 0's', dst='iface'", all_0s, None,
2350 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2351 ("src='iface', dst='All 0's'", None, all_0s,
2352 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2353 ("src='All 1's', dst='iface'", all_1s, None,
2354 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2355 ("src='iface', dst='All 1's'", None, all_1s,
2356 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2357 ("src='All 1's', dst='All 1's'", all_1s, all_1s,
2358 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2361 def test_ip_input_no_replies(self, name, src, dst, l4, msg, timeout):
2363 self._testMethodDoc = 'IPv6 Input Exception - %s' % name
2365 p_version = (Ether(src=self.pg0.remote_mac,
2366 dst=self.pg0.local_mac) /
2367 IPv6(src=src or self.pg0.remote_ip6,
2368 dst=dst or self.pg1.remote_ip6,
2373 self.send_and_assert_no_replies(self.pg0, p_version * NUM_PKTS,
2377 def test_hop_by_hop(self):
2378 """ Hop-by-hop header test """
2380 p = (Ether(src=self.pg0.remote_mac,
2381 dst=self.pg0.local_mac) /
2382 IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6) /
2383 IPv6ExtHdrHopByHop() /
2384 inet6.UDP(sport=1234, dport=1234) /
2387 self.pg0.add_stream(p)
2388 self.pg_enable_capture(self.pg_interfaces)
2392 class TestIPReplace(VppTestCase):
2393 """ IPv6 Table Replace """
2396 def setUpClass(cls):
2397 super(TestIPReplace, cls).setUpClass()
2400 def tearDownClass(cls):
2401 super(TestIPReplace, cls).tearDownClass()
2404 super(TestIPReplace, self).setUp()
2406 self.create_pg_interfaces(range(4))
2411 for i in self.pg_interfaces:
2415 i.generate_remote_hosts(2)
2416 self.tables.append(VppIpTable(self, table_id,
2417 True).add_vpp_config())
2421 super(TestIPReplace, self).tearDown()
2422 for i in self.pg_interfaces:
2426 def test_replace(self):
2427 """ IP Table Replace """
2430 links = [self.pg0, self.pg1, self.pg2, self.pg3]
2431 routes = [[], [], [], []]
2433 # the sizes of 'empty' tables
2434 for t in self.tables:
2435 self.assertEqual(len(t.dump()), 2)
2436 self.assertEqual(len(t.mdump()), 5)
2438 # load up the tables with some routes
2439 for ii, t in enumerate(self.tables):
2440 for jj in range(1, N_ROUTES):
2442 self, "2001::%d" % jj if jj != 0 else "2001::", 128,
2443 [VppRoutePath(links[ii].remote_hosts[0].ip6,
2444 links[ii].sw_if_index),
2445 VppRoutePath(links[ii].remote_hosts[1].ip6,
2446 links[ii].sw_if_index)],
2447 table_id=t.table_id).add_vpp_config()
2448 multi = VppIpMRoute(
2450 "ff:2001::%d" % jj, 128,
2451 MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
2452 [VppMRoutePath(self.pg0.sw_if_index,
2453 MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT,
2454 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
2455 VppMRoutePath(self.pg1.sw_if_index,
2456 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
2457 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
2458 VppMRoutePath(self.pg2.sw_if_index,
2459 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
2460 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
2461 VppMRoutePath(self.pg3.sw_if_index,
2462 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
2463 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6)],
2464 table_id=t.table_id).add_vpp_config()
2465 routes[ii].append({'uni': uni,
2469 # replace the tables a few times
2472 # replace each table
2473 for t in self.tables:
2476 # all the routes are still there
2477 for ii, t in enumerate(self.tables):
2480 for r in routes[ii]:
2481 self.assertTrue(find_route_in_dump(dump, r['uni'], t))
2482 self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
2484 # redownload the even numbered routes
2485 for ii, t in enumerate(self.tables):
2486 for jj in range(0, N_ROUTES, 2):
2487 routes[ii][jj]['uni'].add_vpp_config()
2488 routes[ii][jj]['multi'].add_vpp_config()
2490 # signal each table converged
2491 for t in self.tables:
2494 # we should find the even routes, but not the odd
2495 for ii, t in enumerate(self.tables):
2498 for jj in range(0, N_ROUTES, 2):
2499 self.assertTrue(find_route_in_dump(
2500 dump, routes[ii][jj]['uni'], t))
2501 self.assertTrue(find_mroute_in_dump(
2502 mdump, routes[ii][jj]['multi'], t))
2503 for jj in range(1, N_ROUTES - 1, 2):
2504 self.assertFalse(find_route_in_dump(
2505 dump, routes[ii][jj]['uni'], t))
2506 self.assertFalse(find_mroute_in_dump(
2507 mdump, routes[ii][jj]['multi'], t))
2509 # reload all the routes
2510 for ii, t in enumerate(self.tables):
2511 for r in routes[ii]:
2512 r['uni'].add_vpp_config()
2513 r['multi'].add_vpp_config()
2515 # all the routes are still there
2516 for ii, t in enumerate(self.tables):
2519 for r in routes[ii]:
2520 self.assertTrue(find_route_in_dump(dump, r['uni'], t))
2521 self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
2524 # finally flush the tables for good measure
2526 for t in self.tables:
2528 self.assertEqual(len(t.dump()), 2)
2529 self.assertEqual(len(t.mdump()), 5)
2532 if __name__ == '__main__':
2533 unittest.main(testRunner=VppTestRunner)