4 from socket import inet_pton, inet_ntop
7 from parameterized import parameterized
9 import scapy.layers.inet6 as inet6
10 from scapy.layers.inet import UDP, IP
11 from scapy.contrib.mpls import MPLS
12 from scapy.layers.inet6 import IPv6, ICMPv6ND_NS, ICMPv6ND_RS, \
13 ICMPv6ND_RA, ICMPv6NDOptMTU, ICMPv6NDOptSrcLLAddr, ICMPv6NDOptPrefixInfo, \
14 ICMPv6ND_NA, ICMPv6NDOptDstLLAddr, ICMPv6DestUnreach, icmp6types, \
15 ICMPv6TimeExceeded, ICMPv6EchoRequest, ICMPv6EchoReply, \
16 IPv6ExtHdrHopByHop, ICMPv6MLReport2, ICMPv6MLDMultAddrRec
17 from scapy.layers.l2 import Ether, Dot1Q, GRE
18 from scapy.packet import Raw
19 from scapy.utils6 import in6_getnsma, in6_getnsmac, in6_ptop, in6_islladdr, \
23 from framework import VppTestCase, VppTestRunner, tag_run_solo
24 from util import ppp, ip6_normalize, mk_ll_addr
25 from vpp_papi import VppEnum
26 from vpp_ip import DpoProto, VppIpPuntPolicer, VppIpPuntRedirect, VppIpPathMtu
27 from vpp_ip_route import VppIpRoute, VppRoutePath, find_route, VppIpMRoute, \
28 VppMRoutePath, VppMplsIpBind, \
29 VppMplsRoute, VppMplsTable, VppIpTable, FibPathType, FibPathProto, \
30 VppIpInterfaceAddress, find_route_in_dump, find_mroute_in_dump, \
31 VppIp6LinkLocalAddress, VppIpRouteV2
32 from vpp_neighbor import find_nbr, VppNeighbor
33 from vpp_ipip_tun_interface import VppIpIpTunInterface
34 from vpp_pg_interface import is_ipv6_misc
35 from vpp_sub_interface import VppSubInterface, VppDot1QSubint
36 from vpp_policer import VppPolicer, PolicerAction
37 from ipaddress import IPv6Network, IPv6Address
38 from vpp_gre_interface import VppGreInterface
39 from vpp_teib import VppTeib
41 AF_INET6 = socket.AF_INET6
51 class TestIPv6ND(VppTestCase):
52 def validate_ra(self, intf, rx, dst_ip=None):
54 dst_ip = intf.remote_ip6
56 # unicasted packets must come to the unicast mac
57 self.assertEqual(rx[Ether].dst, intf.remote_mac)
59 # and from the router's MAC
60 self.assertEqual(rx[Ether].src, intf.local_mac)
62 # the rx'd RA should be addressed to the sender's source
63 self.assertTrue(rx.haslayer(ICMPv6ND_RA))
64 self.assertEqual(in6_ptop(rx[IPv6].dst),
67 # and come from the router's link local
68 self.assertTrue(in6_islladdr(rx[IPv6].src))
69 self.assertEqual(in6_ptop(rx[IPv6].src),
70 in6_ptop(mk_ll_addr(intf.local_mac)))
72 def validate_na(self, intf, rx, dst_ip=None, tgt_ip=None):
74 dst_ip = intf.remote_ip6
76 dst_ip = intf.local_ip6
78 # unicasted packets must come to the unicast mac
79 self.assertEqual(rx[Ether].dst, intf.remote_mac)
81 # and from the router's MAC
82 self.assertEqual(rx[Ether].src, intf.local_mac)
84 # the rx'd NA should be addressed to the sender's source
85 self.assertTrue(rx.haslayer(ICMPv6ND_NA))
86 self.assertEqual(in6_ptop(rx[IPv6].dst),
89 # and come from the target address
91 in6_ptop(rx[IPv6].src), in6_ptop(tgt_ip))
93 # Dest link-layer options should have the router's MAC
94 dll = rx[ICMPv6NDOptDstLLAddr]
95 self.assertEqual(dll.lladdr, intf.local_mac)
97 def validate_ns(self, intf, rx, tgt_ip):
98 nsma = in6_getnsma(inet_pton(AF_INET6, tgt_ip))
99 dst_ip = inet_ntop(AF_INET6, nsma)
102 self.assertEqual(rx[Ether].dst, in6_getnsmac(nsma))
104 # and from the router's MAC
105 self.assertEqual(rx[Ether].src, intf.local_mac)
107 # the rx'd NS should be addressed to an mcast address
108 # derived from the target address
110 in6_ptop(rx[IPv6].dst), in6_ptop(dst_ip))
112 # expect the tgt IP in the NS header
114 self.assertEqual(in6_ptop(ns.tgt), in6_ptop(tgt_ip))
116 # packet is from the router's local address
118 in6_ptop(rx[IPv6].src), intf.local_ip6)
120 # Src link-layer options should have the router's MAC
121 sll = rx[ICMPv6NDOptSrcLLAddr]
122 self.assertEqual(sll.lladdr, intf.local_mac)
124 def send_and_expect_ra(self, intf, pkts, remark, dst_ip=None,
125 filter_out_fn=is_ipv6_misc):
126 intf.add_stream(pkts)
127 self.pg_enable_capture(self.pg_interfaces)
129 rx = intf.get_capture(1, filter_out_fn=filter_out_fn)
131 self.assertEqual(len(rx), 1)
133 self.validate_ra(intf, rx, dst_ip)
135 def send_and_expect_na(self, intf, pkts, remark, dst_ip=None,
137 filter_out_fn=is_ipv6_misc):
138 intf.add_stream(pkts)
139 self.pg_enable_capture(self.pg_interfaces)
141 rx = intf.get_capture(1, filter_out_fn=filter_out_fn)
143 self.assertEqual(len(rx), 1)
145 self.validate_na(intf, rx, dst_ip, tgt_ip)
147 def send_and_expect_ns(self, tx_intf, rx_intf, pkts, tgt_ip,
148 filter_out_fn=is_ipv6_misc):
149 self.vapi.cli("clear trace")
150 tx_intf.add_stream(pkts)
151 self.pg_enable_capture(self.pg_interfaces)
153 rx = rx_intf.get_capture(1, filter_out_fn=filter_out_fn)
155 self.assertEqual(len(rx), 1)
157 self.validate_ns(rx_intf, rx, tgt_ip)
159 def verify_ip(self, rx, smac, dmac, sip, dip):
161 self.assertEqual(ether.dst, dmac)
162 self.assertEqual(ether.src, smac)
165 self.assertEqual(ip.src, sip)
166 self.assertEqual(ip.dst, dip)
170 class TestIPv6(TestIPv6ND):
171 """ IPv6 Test Case """
175 super(TestIPv6, cls).setUpClass()
178 def tearDownClass(cls):
179 super(TestIPv6, cls).tearDownClass()
183 Perform test setup before test case.
186 - create 3 pg interfaces
187 - untagged pg0 interface
188 - Dot1Q subinterface on pg1
189 - Dot1AD subinterface on pg2
191 - put it into UP state
193 - resolve neighbor address using NDP
194 - configure 200 fib entries
196 :ivar list interfaces: pg interfaces and subinterfaces.
197 :ivar dict flows: IPv4 packet flows in test.
199 *TODO:* Create AD sub interface
201 super(TestIPv6, self).setUp()
203 # create 3 pg interfaces
204 self.create_pg_interfaces(range(3))
206 # create 2 subinterfaces for p1 and pg2
207 self.sub_interfaces = [
208 VppDot1QSubint(self, self.pg1, 100),
209 VppDot1QSubint(self, self.pg2, 200)
210 # TODO: VppDot1ADSubint(self, self.pg2, 200, 300, 400)
213 # packet flows mapping pg0 -> pg1.sub, pg2.sub, etc.
215 self.flows[self.pg0] = [self.pg1.sub_if, self.pg2.sub_if]
216 self.flows[self.pg1.sub_if] = [self.pg0, self.pg2.sub_if]
217 self.flows[self.pg2.sub_if] = [self.pg0, self.pg1.sub_if]
220 self.pg_if_packet_sizes = [64, 1500, 9020]
222 self.interfaces = list(self.pg_interfaces)
223 self.interfaces.extend(self.sub_interfaces)
225 # setup all interfaces
226 for i in self.interfaces:
232 """Run standard test teardown and log ``show ip6 neighbors``."""
233 for i in self.interfaces:
236 for i in self.sub_interfaces:
237 i.remove_vpp_config()
239 super(TestIPv6, self).tearDown()
240 if not self.vpp_dead:
241 self.logger.info(self.vapi.cli("show ip6 neighbors"))
242 # info(self.vapi.cli("show ip6 fib")) # many entries
244 def modify_packet(self, src_if, packet_size, pkt):
245 """Add load, set destination IP and extend packet to required packet
246 size for defined interface.
248 :param VppInterface src_if: Interface to create packet for.
249 :param int packet_size: Required packet size.
250 :param Scapy pkt: Packet to be modified.
252 dst_if_idx = int(packet_size / 10 % 2)
253 dst_if = self.flows[src_if][dst_if_idx]
254 info = self.create_packet_info(src_if, dst_if)
255 payload = self.info_to_payload(info)
256 p = pkt / Raw(payload)
257 p[IPv6].dst = dst_if.remote_ip6
259 if isinstance(src_if, VppSubInterface):
260 p = src_if.add_dot1_layer(p)
261 self.extend_packet(p, packet_size)
265 def create_stream(self, src_if):
266 """Create input packet stream for defined interface.
268 :param VppInterface src_if: Interface to create packet stream for.
270 hdr_ext = 4 if isinstance(src_if, VppSubInterface) else 0
271 pkt_tmpl = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
272 IPv6(src=src_if.remote_ip6) /
273 inet6.UDP(sport=1234, dport=1234))
275 pkts = [self.modify_packet(src_if, i, pkt_tmpl)
276 for i in moves.range(self.pg_if_packet_sizes[0],
277 self.pg_if_packet_sizes[1], 10)]
278 pkts_b = [self.modify_packet(src_if, i, pkt_tmpl)
279 for i in moves.range(self.pg_if_packet_sizes[1] + hdr_ext,
280 self.pg_if_packet_sizes[2] + hdr_ext,
286 def verify_capture(self, dst_if, capture):
287 """Verify captured input packet stream for defined interface.
289 :param VppInterface dst_if: Interface to verify captured packet stream
291 :param list capture: Captured packet stream.
293 self.logger.info("Verifying capture on interface %s" % dst_if.name)
295 for i in self.interfaces:
296 last_info[i.sw_if_index] = None
298 dst_sw_if_index = dst_if.sw_if_index
299 if hasattr(dst_if, 'parent'):
301 for packet in capture:
303 # Check VLAN tags and Ethernet header
304 packet = dst_if.remove_dot1_layer(packet)
305 self.assertTrue(Dot1Q not in packet)
308 udp = packet[inet6.UDP]
309 payload_info = self.payload_to_info(packet[Raw])
310 packet_index = payload_info.index
311 self.assertEqual(payload_info.dst, dst_sw_if_index)
313 "Got packet on port %s: src=%u (id=%u)" %
314 (dst_if.name, payload_info.src, packet_index))
315 next_info = self.get_next_packet_info_for_interface2(
316 payload_info.src, dst_sw_if_index,
317 last_info[payload_info.src])
318 last_info[payload_info.src] = next_info
319 self.assertTrue(next_info is not None)
320 self.assertEqual(packet_index, next_info.index)
321 saved_packet = next_info.data
322 # Check standard fields
324 ip.src, saved_packet[IPv6].src)
326 ip.dst, saved_packet[IPv6].dst)
328 udp.sport, saved_packet[inet6.UDP].sport)
330 udp.dport, saved_packet[inet6.UDP].dport)
332 self.logger.error(ppp("Unexpected or invalid packet:", packet))
334 for i in self.interfaces:
335 remaining_packet = self.get_next_packet_info_for_interface2(
336 i.sw_if_index, dst_sw_if_index, last_info[i.sw_if_index])
337 self.assertTrue(remaining_packet is None,
338 "Interface %s: Packet expected from interface %s "
339 "didn't arrive" % (dst_if.name, i.name))
341 def test_next_header_anomaly(self):
342 """ IPv6 next header anomaly test
345 - ipv6 next header field = Fragment Header (44)
346 - next header is ICMPv6 Echo Request
347 - wait for reassembly
349 pkt = (Ether(src=self.pg0.local_mac, dst=self.pg0.remote_mac) /
350 IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6, nh=44) /
353 self.pg0.add_stream(pkt)
356 # wait for reassembly
363 - Create IPv6 stream for pg0 interface
364 - Create IPv6 tagged streams for pg1's and pg2's subinterface.
365 - Send and verify received packets on each interface.
368 pkts = self.create_stream(self.pg0)
369 self.pg0.add_stream(pkts)
371 for i in self.sub_interfaces:
372 pkts = self.create_stream(i)
373 i.parent.add_stream(pkts)
375 self.pg_enable_capture(self.pg_interfaces)
378 pkts = self.pg0.get_capture()
379 self.verify_capture(self.pg0, pkts)
381 for i in self.sub_interfaces:
382 pkts = i.parent.get_capture()
383 self.verify_capture(i, pkts)
386 """ IPv6 Neighbour Solicitation Exceptions
389 - Send an NS Sourced from an address not covered by the link sub-net
390 - Send an NS to an mcast address the router has not joined
391 - Send NS for a target address the router does not onn.
395 # An NS from a non link source address
397 nsma = in6_getnsma(inet_pton(AF_INET6, self.pg0.local_ip6))
398 d = inet_ntop(AF_INET6, nsma)
400 p = (Ether(dst=in6_getnsmac(nsma)) /
401 IPv6(dst=d, src="2002::2") /
402 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
403 ICMPv6NDOptSrcLLAddr(
404 lladdr=self.pg0.remote_mac))
407 self.send_and_assert_no_replies(
409 "No response to NS source by address not on sub-net")
412 # An NS for sent to a solicited mcast group the router is
413 # not a member of FAILS
416 nsma = in6_getnsma(inet_pton(AF_INET6, "fd::ffff"))
417 d = inet_ntop(AF_INET6, nsma)
419 p = (Ether(dst=in6_getnsmac(nsma)) /
420 IPv6(dst=d, src=self.pg0.remote_ip6) /
421 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
422 ICMPv6NDOptSrcLLAddr(
423 lladdr=self.pg0.remote_mac))
426 self.send_and_assert_no_replies(
428 "No response to NS sent to unjoined mcast address")
431 # An NS whose target address is one the router does not own
433 nsma = in6_getnsma(inet_pton(AF_INET6, self.pg0.local_ip6))
434 d = inet_ntop(AF_INET6, nsma)
436 p = (Ether(dst=in6_getnsmac(nsma)) /
437 IPv6(dst=d, src=self.pg0.remote_ip6) /
438 ICMPv6ND_NS(tgt="fd::ffff") /
439 ICMPv6NDOptSrcLLAddr(
440 lladdr=self.pg0.remote_mac))
443 self.send_and_assert_no_replies(self.pg0, pkts,
444 "No response to NS for unknown target")
447 # A neighbor entry that has no associated FIB-entry
449 self.pg0.generate_remote_hosts(4)
450 nd_entry = VppNeighbor(self,
451 self.pg0.sw_if_index,
452 self.pg0.remote_hosts[2].mac,
453 self.pg0.remote_hosts[2].ip6,
455 nd_entry.add_vpp_config()
458 # check we have the neighbor, but no route
460 self.assertTrue(find_nbr(self,
461 self.pg0.sw_if_index,
462 self.pg0._remote_hosts[2].ip6))
463 self.assertFalse(find_route(self,
464 self.pg0._remote_hosts[2].ip6,
468 # send an NS from a link local address to the interface's global
471 p = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
473 dst=d, src=self.pg0._remote_hosts[2].ip6_ll) /
474 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
475 ICMPv6NDOptSrcLLAddr(
476 lladdr=self.pg0.remote_mac))
478 self.send_and_expect_na(self.pg0, p,
479 "NS from link-local",
480 dst_ip=self.pg0._remote_hosts[2].ip6_ll,
481 tgt_ip=self.pg0.local_ip6)
484 # we should have learned an ND entry for the peer's link-local
485 # but not inserted a route to it in the FIB
487 self.assertTrue(find_nbr(self,
488 self.pg0.sw_if_index,
489 self.pg0._remote_hosts[2].ip6_ll))
490 self.assertFalse(find_route(self,
491 self.pg0._remote_hosts[2].ip6_ll,
495 # An NS to the router's own Link-local
497 p = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
499 dst=d, src=self.pg0._remote_hosts[3].ip6_ll) /
500 ICMPv6ND_NS(tgt=self.pg0.local_ip6_ll) /
501 ICMPv6NDOptSrcLLAddr(
502 lladdr=self.pg0.remote_mac))
504 self.send_and_expect_na(self.pg0, p,
505 "NS to/from link-local",
506 dst_ip=self.pg0._remote_hosts[3].ip6_ll,
507 tgt_ip=self.pg0.local_ip6_ll)
510 # do not respond to a NS for the peer's address
512 p = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
514 src=self.pg0._remote_hosts[3].ip6_ll) /
515 ICMPv6ND_NS(tgt=self.pg0._remote_hosts[3].ip6_ll) /
516 ICMPv6NDOptSrcLLAddr(
517 lladdr=self.pg0.remote_mac))
519 self.send_and_assert_no_replies(self.pg0, p)
522 # we should have learned an ND entry for the peer's link-local
523 # but not inserted a route to it in the FIB
525 self.assertTrue(find_nbr(self,
526 self.pg0.sw_if_index,
527 self.pg0._remote_hosts[3].ip6_ll))
528 self.assertFalse(find_route(self,
529 self.pg0._remote_hosts[3].ip6_ll,
532 def test_ns_duplicates(self):
536 # Generate some hosts on the LAN
538 self.pg1.generate_remote_hosts(3)
541 # Add host 1 on pg1 and pg2
543 ns_pg1 = VppNeighbor(self,
544 self.pg1.sw_if_index,
545 self.pg1.remote_hosts[1].mac,
546 self.pg1.remote_hosts[1].ip6)
547 ns_pg1.add_vpp_config()
548 ns_pg2 = VppNeighbor(self,
549 self.pg2.sw_if_index,
551 self.pg1.remote_hosts[1].ip6)
552 ns_pg2.add_vpp_config()
555 # IP packet destined for pg1 remote host arrives on pg1 again.
557 p = (Ether(dst=self.pg0.local_mac,
558 src=self.pg0.remote_mac) /
559 IPv6(src=self.pg0.remote_ip6,
560 dst=self.pg1.remote_hosts[1].ip6) /
561 inet6.UDP(sport=1234, dport=1234) /
564 self.pg0.add_stream(p)
565 self.pg_enable_capture(self.pg_interfaces)
568 rx1 = self.pg1.get_capture(1)
570 self.verify_ip(rx1[0],
572 self.pg1.remote_hosts[1].mac,
574 self.pg1.remote_hosts[1].ip6)
577 # remove the duplicate on pg1
578 # packet stream should generate NSs out of pg1
580 ns_pg1.remove_vpp_config()
582 self.send_and_expect_ns(self.pg0, self.pg1,
583 p, self.pg1.remote_hosts[1].ip6)
588 ns_pg1.add_vpp_config()
590 self.pg0.add_stream(p)
591 self.pg_enable_capture(self.pg_interfaces)
594 rx1 = self.pg1.get_capture(1)
596 self.verify_ip(rx1[0],
598 self.pg1.remote_hosts[1].mac,
600 self.pg1.remote_hosts[1].ip6)
602 def validate_ra(self, intf, rx, dst_ip=None, src_ip=None,
603 mtu=9000, pi_opt=None):
605 dst_ip = intf.remote_ip6
607 src_ip = mk_ll_addr(intf.local_mac)
609 # unicasted packets must come to the unicast mac
610 self.assertEqual(rx[Ether].dst, intf.remote_mac)
612 # and from the router's MAC
613 self.assertEqual(rx[Ether].src, intf.local_mac)
615 # the rx'd RA should be addressed to the sender's source
616 self.assertTrue(rx.haslayer(ICMPv6ND_RA))
617 self.assertEqual(in6_ptop(rx[IPv6].dst),
620 # and come from the router's link local
621 self.assertTrue(in6_islladdr(rx[IPv6].src))
622 self.assertEqual(in6_ptop(rx[IPv6].src), in6_ptop(src_ip))
624 # it should contain the links MTU
626 self.assertEqual(ra[ICMPv6NDOptMTU].mtu, mtu)
628 # it should contain the source's link layer address option
629 sll = ra[ICMPv6NDOptSrcLLAddr]
630 self.assertEqual(sll.lladdr, intf.local_mac)
633 # the RA should not contain prefix information
634 self.assertFalse(ra.haslayer(
635 ICMPv6NDOptPrefixInfo))
637 raos = rx.getlayer(ICMPv6NDOptPrefixInfo, 1)
639 # the options are nested in the scapy packet in way that i cannot
640 # decipher how to decode. this 1st layer of option always returns
641 # nested classes, so a direct obj1=obj2 comparison always fails.
642 # however, the getlayer(.., 2) does give one instance.
643 # so we cheat here and construct a new opt instance for comparison
644 rd = ICMPv6NDOptPrefixInfo(
645 prefixlen=raos.prefixlen,
649 if type(pi_opt) is list:
650 for ii in range(len(pi_opt)):
651 self.assertEqual(pi_opt[ii], rd)
653 ICMPv6NDOptPrefixInfo, ii + 2)
655 self.assertEqual(pi_opt, raos, 'Expected: %s, received: %s'
656 % (pi_opt.show(dump=True),
657 raos.show(dump=True)))
659 def send_and_expect_ra(self, intf, pkts, remark, dst_ip=None,
660 filter_out_fn=is_ipv6_misc,
663 self.vapi.cli("clear trace")
664 intf.add_stream(pkts)
665 self.pg_enable_capture(self.pg_interfaces)
667 rx = intf.get_capture(1, filter_out_fn=filter_out_fn)
669 self.assertEqual(len(rx), 1)
671 self.validate_ra(intf, rx, dst_ip, src_ip=src_ip, pi_opt=opt)
674 """ IPv6 Router Solicitation Exceptions
680 # Before we begin change the IPv6 RA responses to use the unicast
681 # address - that way we will not confuse them with the periodic
682 # RAs which go to the mcast address
683 # Sit and wait for the first periodic RA.
687 self.pg0.ip6_ra_config(send_unicast=1)
690 # An RS from a link source address
691 # - expect an RA in return
693 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
694 IPv6(dst=self.pg0.local_ip6, src=self.pg0.remote_ip6) /
697 self.send_and_expect_ra(self.pg0, pkts, "Genuine RS")
700 # For the next RS sent the RA should be rate limited
702 self.send_and_assert_no_replies(self.pg0, pkts, "RA rate limited")
705 # When we reconfigure the IPv6 RA config,
706 # we reset the RA rate limiting,
707 # so we need to do this before each test below so as not to drop
708 # packets for rate limiting reasons. Test this works here.
710 self.pg0.ip6_ra_config(send_unicast=1)
711 self.send_and_expect_ra(self.pg0, pkts, "Rate limit reset RS")
714 # An RS sent from a non-link local source
716 self.pg0.ip6_ra_config(send_unicast=1)
717 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
718 IPv6(dst=self.pg0.local_ip6,
722 self.send_and_assert_no_replies(self.pg0, pkts,
723 "RS from non-link source")
726 # Source an RS from a link local address
728 self.pg0.ip6_ra_config(send_unicast=1)
729 ll = mk_ll_addr(self.pg0.remote_mac)
730 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
731 IPv6(dst=self.pg0.local_ip6, src=ll) /
734 self.send_and_expect_ra(self.pg0, pkts,
735 "RS sourced from link-local",
739 # Send the RS multicast
741 self.pg0.ip6_ra_config(send_unicast=1)
742 dmac = in6_getnsmac(inet_pton(AF_INET6, "ff02::2"))
743 ll = mk_ll_addr(self.pg0.remote_mac)
744 p = (Ether(dst=dmac, src=self.pg0.remote_mac) /
745 IPv6(dst="ff02::2", src=ll) /
748 self.send_and_expect_ra(self.pg0, pkts,
749 "RS sourced from link-local",
753 # Source from the unspecified address ::. This happens when the RS
754 # is sent before the host has a configured address/sub-net,
755 # i.e. auto-config. Since the sender has no IP address, the reply
756 # comes back mcast - so the capture needs to not filter this.
757 # If we happen to pick up the periodic RA at this point then so be it,
760 self.pg0.ip6_ra_config(send_unicast=1, suppress=1)
761 p = (Ether(dst=dmac, src=self.pg0.remote_mac) /
762 IPv6(dst="ff02::2", src="::") /
765 self.send_and_expect_ra(self.pg0, pkts,
766 "RS sourced from unspecified",
771 # Configure The RA to announce the links prefix
773 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
774 self.pg0.local_ip6_prefix_len))
777 # RAs should now contain the prefix information option
779 opt = ICMPv6NDOptPrefixInfo(
780 prefixlen=self.pg0.local_ip6_prefix_len,
781 prefix=self.pg0.local_ip6,
785 self.pg0.ip6_ra_config(send_unicast=1)
786 ll = mk_ll_addr(self.pg0.remote_mac)
787 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
788 IPv6(dst=self.pg0.local_ip6, src=ll) /
790 self.send_and_expect_ra(self.pg0, p,
791 "RA with prefix-info",
796 # Change the prefix info to not off-link
799 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
800 self.pg0.local_ip6_prefix_len),
803 opt = ICMPv6NDOptPrefixInfo(
804 prefixlen=self.pg0.local_ip6_prefix_len,
805 prefix=self.pg0.local_ip6,
809 self.pg0.ip6_ra_config(send_unicast=1)
810 self.send_and_expect_ra(self.pg0, p,
811 "RA with Prefix info with L-flag=0",
816 # Change the prefix info to not off-link, no-autoconfig
817 # L and A flag are clear in the advert
819 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
820 self.pg0.local_ip6_prefix_len),
824 opt = ICMPv6NDOptPrefixInfo(
825 prefixlen=self.pg0.local_ip6_prefix_len,
826 prefix=self.pg0.local_ip6,
830 self.pg0.ip6_ra_config(send_unicast=1)
831 self.send_and_expect_ra(self.pg0, p,
832 "RA with Prefix info with A & L-flag=0",
837 # Change the flag settings back to the defaults
838 # L and A flag are set in the advert
840 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
841 self.pg0.local_ip6_prefix_len))
843 opt = ICMPv6NDOptPrefixInfo(
844 prefixlen=self.pg0.local_ip6_prefix_len,
845 prefix=self.pg0.local_ip6,
849 self.pg0.ip6_ra_config(send_unicast=1)
850 self.send_and_expect_ra(self.pg0, p,
851 "RA with Prefix info",
856 # Change the prefix info to not off-link, no-autoconfig
857 # L and A flag are clear in the advert
859 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
860 self.pg0.local_ip6_prefix_len),
864 opt = ICMPv6NDOptPrefixInfo(
865 prefixlen=self.pg0.local_ip6_prefix_len,
866 prefix=self.pg0.local_ip6,
870 self.pg0.ip6_ra_config(send_unicast=1)
871 self.send_and_expect_ra(self.pg0, p,
872 "RA with Prefix info with A & L-flag=0",
877 # Use the reset to defaults option to revert to defaults
878 # L and A flag are clear in the advert
880 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
881 self.pg0.local_ip6_prefix_len),
884 opt = ICMPv6NDOptPrefixInfo(
885 prefixlen=self.pg0.local_ip6_prefix_len,
886 prefix=self.pg0.local_ip6,
890 self.pg0.ip6_ra_config(send_unicast=1)
891 self.send_and_expect_ra(self.pg0, p,
892 "RA with Prefix reverted to defaults",
897 # Advertise Another prefix. With no L-flag/A-flag
899 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg1.local_ip6,
900 self.pg1.local_ip6_prefix_len),
904 opt = [ICMPv6NDOptPrefixInfo(
905 prefixlen=self.pg0.local_ip6_prefix_len,
906 prefix=self.pg0.local_ip6,
909 ICMPv6NDOptPrefixInfo(
910 prefixlen=self.pg1.local_ip6_prefix_len,
911 prefix=self.pg1.local_ip6,
915 self.pg0.ip6_ra_config(send_unicast=1)
916 ll = mk_ll_addr(self.pg0.remote_mac)
917 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
918 IPv6(dst=self.pg0.local_ip6, src=ll) /
920 self.send_and_expect_ra(self.pg0, p,
921 "RA with multiple Prefix infos",
926 # Remove the first prefix-info - expect the second is still in the
929 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
930 self.pg0.local_ip6_prefix_len),
933 opt = ICMPv6NDOptPrefixInfo(
934 prefixlen=self.pg1.local_ip6_prefix_len,
935 prefix=self.pg1.local_ip6,
939 self.pg0.ip6_ra_config(send_unicast=1)
940 self.send_and_expect_ra(self.pg0, p,
941 "RA with Prefix reverted to defaults",
946 # Remove the second prefix-info - expect no prefix-info in the adverts
948 self.pg0.ip6_ra_prefix('%s/%s' % (self.pg1.local_ip6,
949 self.pg1.local_ip6_prefix_len),
953 # change the link's link local, so we know that works too.
955 self.vapi.sw_interface_ip6_set_link_local_address(
956 sw_if_index=self.pg0.sw_if_index,
959 self.pg0.ip6_ra_config(send_unicast=1)
960 self.send_and_expect_ra(self.pg0, p,
961 "RA with Prefix reverted to defaults",
966 # Reset the periodic advertisements back to default values
968 self.pg0.ip6_ra_config(no=1, suppress=1, send_unicast=0)
973 # test one MLD is sent after applying an IPv6 Address on an interface
975 self.pg_enable_capture(self.pg_interfaces)
978 subitf = VppDot1QSubint(self, self.pg1, 99)
983 rxs = self.pg1._get_capture(timeout=4, filter_out_fn=None)
986 # hunt for the MLD on vlan 99
989 # make sure ipv6 packets with hop by hop options have
991 self.assert_packet_checksums_valid(rx)
992 if rx.haslayer(IPv6ExtHdrHopByHop) and \
993 rx.haslayer(Dot1Q) and \
994 rx[Dot1Q].vlan == 99:
995 mld = rx[ICMPv6MLReport2]
997 self.assertEqual(mld.records_number, 4)
1000 class TestIPv6RouteLookup(VppTestCase):
1001 """ IPv6 Route Lookup Test Case """
1004 def route_lookup(self, prefix, exact):
1005 return self.vapi.api(self.vapi.papi.ip_route_lookup,
1013 def setUpClass(cls):
1014 super(TestIPv6RouteLookup, cls).setUpClass()
1017 def tearDownClass(cls):
1018 super(TestIPv6RouteLookup, cls).tearDownClass()
1021 super(TestIPv6RouteLookup, self).setUp()
1023 drop_nh = VppRoutePath("::1", 0xffffffff,
1024 type=FibPathType.FIB_PATH_TYPE_DROP)
1027 r = VppIpRoute(self, "2001:1111::", 32, [drop_nh])
1029 self.routes.append(r)
1031 r = VppIpRoute(self, "2001:1111:2222::", 48, [drop_nh])
1033 self.routes.append(r)
1035 r = VppIpRoute(self, "2001:1111:2222::1", 128, [drop_nh])
1037 self.routes.append(r)
1040 # Remove the routes we added
1041 for r in self.routes:
1042 r.remove_vpp_config()
1044 super(TestIPv6RouteLookup, self).tearDown()
1046 def test_exact_match(self):
1047 # Verify we find the host route
1048 prefix = "2001:1111:2222::1/128"
1049 result = self.route_lookup(prefix, True)
1050 assert (prefix == str(result.route.prefix))
1052 # Verify we find a middle prefix route
1053 prefix = "2001:1111:2222::/48"
1054 result = self.route_lookup(prefix, True)
1055 assert (prefix == str(result.route.prefix))
1057 # Verify we do not find an available LPM.
1058 with self.vapi.assert_negative_api_retval():
1059 self.route_lookup("2001::2/128", True)
1061 def test_longest_prefix_match(self):
1062 # verify we find lpm
1063 lpm_prefix = "2001:1111:2222::/48"
1064 result = self.route_lookup("2001:1111:2222::2/128", False)
1065 assert (lpm_prefix == str(result.route.prefix))
1067 # Verify we find the exact when not requested
1068 result = self.route_lookup(lpm_prefix, False)
1069 assert (lpm_prefix == str(result.route.prefix))
1071 # Can't seem to delete the default route so no negative LPM test.
1074 class TestIPv6IfAddrRoute(VppTestCase):
1075 """ IPv6 Interface Addr Route Test Case """
1078 def setUpClass(cls):
1079 super(TestIPv6IfAddrRoute, cls).setUpClass()
1082 def tearDownClass(cls):
1083 super(TestIPv6IfAddrRoute, cls).tearDownClass()
1086 super(TestIPv6IfAddrRoute, self).setUp()
1088 # create 1 pg interface
1089 self.create_pg_interfaces(range(1))
1091 for i in self.pg_interfaces:
1097 super(TestIPv6IfAddrRoute, self).tearDown()
1098 for i in self.pg_interfaces:
1102 def test_ipv6_ifaddrs_same_prefix(self):
1103 """ IPv6 Interface Addresses Same Prefix test
1107 - Verify no route in FIB for prefix 2001:10::/64
1108 - Configure IPv4 address 2001:10::10/64 on an interface
1109 - Verify route in FIB for prefix 2001:10::/64
1110 - Configure IPv4 address 2001:10::20/64 on an interface
1111 - Delete 2001:10::10/64 from interface
1112 - Verify route in FIB for prefix 2001:10::/64
1113 - Delete 2001:10::20/64 from interface
1114 - Verify no route in FIB for prefix 2001:10::/64
1117 addr1 = "2001:10::10"
1118 addr2 = "2001:10::20"
1120 if_addr1 = VppIpInterfaceAddress(self, self.pg0, addr1, 64)
1121 if_addr2 = VppIpInterfaceAddress(self, self.pg0, addr2, 64)
1122 self.assertFalse(if_addr1.query_vpp_config())
1123 self.assertFalse(find_route(self, addr1, 128))
1124 self.assertFalse(find_route(self, addr2, 128))
1126 # configure first address, verify route present
1127 if_addr1.add_vpp_config()
1128 self.assertTrue(if_addr1.query_vpp_config())
1129 self.assertTrue(find_route(self, addr1, 128))
1130 self.assertFalse(find_route(self, addr2, 128))
1132 # configure second address, delete first, verify route not removed
1133 if_addr2.add_vpp_config()
1134 if_addr1.remove_vpp_config()
1135 self.assertFalse(if_addr1.query_vpp_config())
1136 self.assertTrue(if_addr2.query_vpp_config())
1137 self.assertFalse(find_route(self, addr1, 128))
1138 self.assertTrue(find_route(self, addr2, 128))
1140 # delete second address, verify route removed
1141 if_addr2.remove_vpp_config()
1142 self.assertFalse(if_addr1.query_vpp_config())
1143 self.assertFalse(find_route(self, addr1, 128))
1144 self.assertFalse(find_route(self, addr2, 128))
1146 def test_ipv6_ifaddr_del(self):
1147 """ Delete an interface address that does not exist """
1149 loopbacks = self.create_loopback_interfaces(1)
1150 lo = self.lo_interfaces[0]
1156 # try and remove pg0's subnet from lo
1158 with self.vapi.assert_negative_api_retval():
1159 self.vapi.sw_interface_add_del_address(
1160 sw_if_index=lo.sw_if_index,
1161 prefix=self.pg0.local_ip6_prefix,
1165 class TestICMPv6Echo(VppTestCase):
1166 """ ICMPv6 Echo Test Case """
1169 def setUpClass(cls):
1170 super(TestICMPv6Echo, cls).setUpClass()
1173 def tearDownClass(cls):
1174 super(TestICMPv6Echo, cls).tearDownClass()
1177 super(TestICMPv6Echo, self).setUp()
1179 # create 1 pg interface
1180 self.create_pg_interfaces(range(1))
1182 for i in self.pg_interfaces:
1185 i.resolve_ndp(link_layer=True)
1189 super(TestICMPv6Echo, self).tearDown()
1190 for i in self.pg_interfaces:
1194 def test_icmpv6_echo(self):
1195 """ VPP replies to ICMPv6 Echo Request
1199 - Receive ICMPv6 Echo Request message on pg0 interface.
1200 - Check outgoing ICMPv6 Echo Reply message on pg0 interface.
1203 # test both with global and local ipv6 addresses
1204 dsts = (self.pg0.local_ip6, self.pg0.local_ip6_ll)
1210 p.append((Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
1211 IPv6(src=self.pg0.remote_ip6, dst=dst) /
1212 ICMPv6EchoRequest(id=id, seq=seq, data=data)))
1214 self.pg0.add_stream(p)
1215 self.pg_enable_capture(self.pg_interfaces)
1217 rxs = self.pg0.get_capture(len(dsts))
1219 for rx, dst in zip(rxs, dsts):
1222 icmpv6 = rx[ICMPv6EchoReply]
1223 self.assertEqual(ether.src, self.pg0.local_mac)
1224 self.assertEqual(ether.dst, self.pg0.remote_mac)
1225 self.assertEqual(ipv6.src, dst)
1226 self.assertEqual(ipv6.dst, self.pg0.remote_ip6)
1227 self.assertEqual(icmp6types[icmpv6.type], "Echo Reply")
1228 self.assertEqual(icmpv6.id, id)
1229 self.assertEqual(icmpv6.seq, seq)
1230 self.assertEqual(icmpv6.data, data)
1233 class TestIPv6RD(TestIPv6ND):
1234 """ IPv6 Router Discovery Test Case """
1237 def setUpClass(cls):
1238 super(TestIPv6RD, cls).setUpClass()
1241 def tearDownClass(cls):
1242 super(TestIPv6RD, cls).tearDownClass()
1245 super(TestIPv6RD, self).setUp()
1247 # create 2 pg interfaces
1248 self.create_pg_interfaces(range(2))
1250 self.interfaces = list(self.pg_interfaces)
1252 # setup all interfaces
1253 for i in self.interfaces:
1258 for i in self.interfaces:
1261 super(TestIPv6RD, self).tearDown()
1263 def test_rd_send_router_solicitation(self):
1264 """ Verify router solicitation packets """
1267 self.pg_enable_capture(self.pg_interfaces)
1269 self.vapi.ip6nd_send_router_solicitation(self.pg1.sw_if_index,
1271 rx_list = self.pg1.get_capture(count, timeout=3)
1272 self.assertEqual(len(rx_list), count)
1273 for packet in rx_list:
1274 self.assertEqual(packet.haslayer(IPv6), 1)
1275 self.assertEqual(packet[IPv6].haslayer(
1277 dst = ip6_normalize(packet[IPv6].dst)
1278 dst2 = ip6_normalize("ff02::2")
1279 self.assert_equal(dst, dst2)
1280 src = ip6_normalize(packet[IPv6].src)
1281 src2 = ip6_normalize(self.pg1.local_ip6_ll)
1282 self.assert_equal(src, src2)
1284 bool(packet[ICMPv6ND_RS].haslayer(
1285 ICMPv6NDOptSrcLLAddr)))
1287 packet[ICMPv6NDOptSrcLLAddr].lladdr,
1290 def verify_prefix_info(self, reported_prefix, prefix_option):
1291 prefix = IPv6Network(
1292 text_type(prefix_option.getfieldval("prefix") +
1294 text_type(prefix_option.getfieldval("prefixlen"))),
1296 self.assert_equal(reported_prefix.prefix.network_address,
1297 prefix.network_address)
1298 L = prefix_option.getfieldval("L")
1299 A = prefix_option.getfieldval("A")
1300 option_flags = (L << 7) | (A << 6)
1301 self.assert_equal(reported_prefix.flags, option_flags)
1302 self.assert_equal(reported_prefix.valid_time,
1303 prefix_option.getfieldval("validlifetime"))
1304 self.assert_equal(reported_prefix.preferred_time,
1305 prefix_option.getfieldval("preferredlifetime"))
1307 def test_rd_receive_router_advertisement(self):
1308 """ Verify events triggered by received RA packets """
1310 self.vapi.want_ip6_ra_events(enable=1)
1312 prefix_info_1 = ICMPv6NDOptPrefixInfo(
1316 preferredlifetime=500,
1321 prefix_info_2 = ICMPv6NDOptPrefixInfo(
1325 preferredlifetime=1000,
1330 p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
1331 IPv6(dst=self.pg1.local_ip6_ll,
1332 src=mk_ll_addr(self.pg1.remote_mac)) /
1336 self.pg1.add_stream([p])
1339 ev = self.vapi.wait_for_event(10, "ip6_ra_event")
1341 self.assert_equal(ev.current_hop_limit, 0)
1342 self.assert_equal(ev.flags, 8)
1343 self.assert_equal(ev.router_lifetime_in_sec, 1800)
1344 self.assert_equal(ev.neighbor_reachable_time_in_msec, 0)
1346 ev.time_in_msec_between_retransmitted_neighbor_solicitations, 0)
1348 self.assert_equal(ev.n_prefixes, 2)
1350 self.verify_prefix_info(ev.prefixes[0], prefix_info_1)
1351 self.verify_prefix_info(ev.prefixes[1], prefix_info_2)
1354 class TestIPv6RDControlPlane(TestIPv6ND):
1355 """ IPv6 Router Discovery Control Plane Test Case """
1358 def setUpClass(cls):
1359 super(TestIPv6RDControlPlane, cls).setUpClass()
1362 def tearDownClass(cls):
1363 super(TestIPv6RDControlPlane, cls).tearDownClass()
1366 super(TestIPv6RDControlPlane, self).setUp()
1368 # create 1 pg interface
1369 self.create_pg_interfaces(range(1))
1371 self.interfaces = list(self.pg_interfaces)
1373 # setup all interfaces
1374 for i in self.interfaces:
1379 super(TestIPv6RDControlPlane, self).tearDown()
1382 def create_ra_packet(pg, routerlifetime=None):
1383 src_ip = pg.remote_ip6_ll
1384 dst_ip = pg.local_ip6
1385 if routerlifetime is not None:
1386 ra = ICMPv6ND_RA(routerlifetime=routerlifetime)
1389 p = (Ether(dst=pg.local_mac, src=pg.remote_mac) /
1390 IPv6(dst=dst_ip, src=src_ip) / ra)
1394 def get_default_routes(fib):
1397 if entry.route.prefix.prefixlen == 0:
1398 for path in entry.route.paths:
1399 if path.sw_if_index != 0xFFFFFFFF:
1401 defaut_route['sw_if_index'] = path.sw_if_index
1402 defaut_route['next_hop'] = path.nh.address.ip6
1403 list.append(defaut_route)
1407 def get_interface_addresses(fib, pg):
1410 if entry.route.prefix.prefixlen == 128:
1411 path = entry.route.paths[0]
1412 if path.sw_if_index == pg.sw_if_index:
1413 list.append(str(entry.route.prefix.network_address))
1416 def wait_for_no_default_route(self, n_tries=50, s_time=1):
1418 fib = self.vapi.ip_route_dump(0, True)
1419 default_routes = self.get_default_routes(fib)
1420 if 0 == len(default_routes):
1422 n_tries = n_tries - 1
1428 """ Test handling of SLAAC addresses and default routes """
1430 fib = self.vapi.ip_route_dump(0, True)
1431 default_routes = self.get_default_routes(fib)
1432 initial_addresses = set(self.get_interface_addresses(fib, self.pg0))
1433 self.assertEqual(default_routes, [])
1434 router_address = IPv6Address(text_type(self.pg0.remote_ip6_ll))
1436 self.vapi.ip6_nd_address_autoconfig(self.pg0.sw_if_index, 1, 1)
1441 packet = (self.create_ra_packet(
1442 self.pg0) / ICMPv6NDOptPrefixInfo(
1446 preferredlifetime=2,
1449 ) / ICMPv6NDOptPrefixInfo(
1453 preferredlifetime=1000,
1457 self.pg0.add_stream([packet])
1460 self.sleep_on_vpp_time(0.1)
1462 fib = self.vapi.ip_route_dump(0, True)
1464 # check FIB for new address
1465 addresses = set(self.get_interface_addresses(fib, self.pg0))
1466 new_addresses = addresses.difference(initial_addresses)
1467 self.assertEqual(len(new_addresses), 1)
1468 prefix = IPv6Network(text_type("%s/%d" % (list(new_addresses)[0], 20)),
1470 self.assertEqual(prefix, IPv6Network(text_type('1::/20')))
1472 # check FIB for new default route
1473 default_routes = self.get_default_routes(fib)
1474 self.assertEqual(len(default_routes), 1)
1475 dr = default_routes[0]
1476 self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
1477 self.assertEqual(dr['next_hop'], router_address)
1479 # send RA to delete default route
1480 packet = self.create_ra_packet(self.pg0, routerlifetime=0)
1481 self.pg0.add_stream([packet])
1484 self.sleep_on_vpp_time(0.1)
1486 # check that default route is deleted
1487 fib = self.vapi.ip_route_dump(0, True)
1488 default_routes = self.get_default_routes(fib)
1489 self.assertEqual(len(default_routes), 0)
1491 self.sleep_on_vpp_time(0.1)
1494 packet = self.create_ra_packet(self.pg0)
1495 self.pg0.add_stream([packet])
1498 self.sleep_on_vpp_time(0.1)
1500 # check FIB for new default route
1501 fib = self.vapi.ip_route_dump(0, True)
1502 default_routes = self.get_default_routes(fib)
1503 self.assertEqual(len(default_routes), 1)
1504 dr = default_routes[0]
1505 self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
1506 self.assertEqual(dr['next_hop'], router_address)
1508 # send RA, updating router lifetime to 1s
1509 packet = self.create_ra_packet(self.pg0, 1)
1510 self.pg0.add_stream([packet])
1513 self.sleep_on_vpp_time(0.1)
1515 # check that default route still exists
1516 fib = self.vapi.ip_route_dump(0, True)
1517 default_routes = self.get_default_routes(fib)
1518 self.assertEqual(len(default_routes), 1)
1519 dr = default_routes[0]
1520 self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
1521 self.assertEqual(dr['next_hop'], router_address)
1523 self.sleep_on_vpp_time(1)
1525 # check that default route is deleted
1526 self.assertTrue(self.wait_for_no_default_route())
1528 # check FIB still contains the SLAAC address
1529 addresses = set(self.get_interface_addresses(fib, self.pg0))
1530 new_addresses = addresses.difference(initial_addresses)
1532 self.assertEqual(len(new_addresses), 1)
1533 prefix = IPv6Network(text_type("%s/%d" % (list(new_addresses)[0], 20)),
1535 self.assertEqual(prefix, IPv6Network(text_type('1::/20')))
1537 self.sleep_on_vpp_time(1)
1539 # check that SLAAC address is deleted
1540 fib = self.vapi.ip_route_dump(0, True)
1541 addresses = set(self.get_interface_addresses(fib, self.pg0))
1542 new_addresses = addresses.difference(initial_addresses)
1543 self.assertEqual(len(new_addresses), 0)
1546 class IPv6NDProxyTest(TestIPv6ND):
1547 """ IPv6 ND ProxyTest Case """
1550 def setUpClass(cls):
1551 super(IPv6NDProxyTest, cls).setUpClass()
1554 def tearDownClass(cls):
1555 super(IPv6NDProxyTest, cls).tearDownClass()
1558 super(IPv6NDProxyTest, self).setUp()
1560 # create 3 pg interfaces
1561 self.create_pg_interfaces(range(3))
1563 # pg0 is the master interface, with the configured subnet
1565 self.pg0.config_ip6()
1566 self.pg0.resolve_ndp()
1568 self.pg1.ip6_enable()
1569 self.pg2.ip6_enable()
1572 super(IPv6NDProxyTest, self).tearDown()
1574 def test_nd_proxy(self):
1575 """ IPv6 Proxy ND """
1578 # Generate some hosts in the subnet that we are proxying
1580 self.pg0.generate_remote_hosts(8)
1582 nsma = in6_getnsma(inet_pton(AF_INET6, self.pg0.local_ip6))
1583 d = inet_ntop(AF_INET6, nsma)
1586 # Send an NS for one of those remote hosts on one of the proxy links
1587 # expect no response since it's from an address that is not
1588 # on the link that has the prefix configured
1590 ns_pg1 = (Ether(dst=in6_getnsmac(nsma), src=self.pg1.remote_mac) /
1592 src=self.pg0._remote_hosts[2].ip6) /
1593 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
1594 ICMPv6NDOptSrcLLAddr(
1595 lladdr=self.pg0._remote_hosts[2].mac))
1597 self.send_and_assert_no_replies(self.pg1, ns_pg1, "Off link NS")
1600 # Add proxy support for the host
1602 self.vapi.ip6nd_proxy_add_del(
1603 is_add=1, ip=inet_pton(AF_INET6, self.pg0._remote_hosts[2].ip6),
1604 sw_if_index=self.pg1.sw_if_index)
1607 # try that NS again. this time we expect an NA back
1609 self.send_and_expect_na(self.pg1, ns_pg1,
1610 "NS to proxy entry",
1611 dst_ip=self.pg0._remote_hosts[2].ip6,
1612 tgt_ip=self.pg0.local_ip6)
1615 # ... and that we have an entry in the ND cache
1617 self.assertTrue(find_nbr(self,
1618 self.pg1.sw_if_index,
1619 self.pg0._remote_hosts[2].ip6))
1622 # ... and we can route traffic to it
1624 t = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
1625 IPv6(dst=self.pg0._remote_hosts[2].ip6,
1626 src=self.pg0.remote_ip6) /
1627 inet6.UDP(sport=10000, dport=20000) /
1630 self.pg0.add_stream(t)
1631 self.pg_enable_capture(self.pg_interfaces)
1633 rx = self.pg1.get_capture(1)
1636 self.assertEqual(rx[Ether].dst, self.pg0._remote_hosts[2].mac)
1637 self.assertEqual(rx[Ether].src, self.pg1.local_mac)
1639 self.assertEqual(rx[IPv6].src,
1641 self.assertEqual(rx[IPv6].dst,
1645 # Test we proxy for the host on the main interface
1647 ns_pg0 = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
1648 IPv6(dst=d, src=self.pg0.remote_ip6) /
1650 tgt=self.pg0._remote_hosts[2].ip6) /
1651 ICMPv6NDOptSrcLLAddr(
1652 lladdr=self.pg0.remote_mac))
1654 self.send_and_expect_na(self.pg0, ns_pg0,
1655 "NS to proxy entry on main",
1656 tgt_ip=self.pg0._remote_hosts[2].ip6,
1657 dst_ip=self.pg0.remote_ip6)
1660 # Setup and resolve proxy for another host on another interface
1662 ns_pg2 = (Ether(dst=in6_getnsmac(nsma), src=self.pg2.remote_mac) /
1664 src=self.pg0._remote_hosts[3].ip6) /
1665 ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
1666 ICMPv6NDOptSrcLLAddr(
1667 lladdr=self.pg0._remote_hosts[2].mac))
1669 self.vapi.ip6nd_proxy_add_del(
1670 is_add=1, ip=inet_pton(AF_INET6, self.pg0._remote_hosts[3].ip6),
1671 sw_if_index=self.pg2.sw_if_index)
1673 self.send_and_expect_na(self.pg2, ns_pg2,
1674 "NS to proxy entry other interface",
1675 dst_ip=self.pg0._remote_hosts[3].ip6,
1676 tgt_ip=self.pg0.local_ip6)
1678 self.assertTrue(find_nbr(self,
1679 self.pg2.sw_if_index,
1680 self.pg0._remote_hosts[3].ip6))
1683 # hosts can communicate. pg2->pg1
1685 t2 = (Ether(dst=self.pg2.local_mac,
1686 src=self.pg0.remote_hosts[3].mac) /
1687 IPv6(dst=self.pg0._remote_hosts[2].ip6,
1688 src=self.pg0._remote_hosts[3].ip6) /
1689 inet6.UDP(sport=10000, dport=20000) /
1692 self.pg2.add_stream(t2)
1693 self.pg_enable_capture(self.pg_interfaces)
1695 rx = self.pg1.get_capture(1)
1698 self.assertEqual(rx[Ether].dst, self.pg0._remote_hosts[2].mac)
1699 self.assertEqual(rx[Ether].src, self.pg1.local_mac)
1701 self.assertEqual(rx[IPv6].src,
1703 self.assertEqual(rx[IPv6].dst,
1707 # remove the proxy configs
1709 self.vapi.ip6nd_proxy_add_del(
1710 ip=inet_pton(AF_INET6, self.pg0._remote_hosts[2].ip6),
1711 sw_if_index=self.pg1.sw_if_index, is_add=0)
1712 self.vapi.ip6nd_proxy_add_del(
1713 ip=inet_pton(AF_INET6, self.pg0._remote_hosts[3].ip6),
1714 sw_if_index=self.pg2.sw_if_index, is_add=0)
1716 self.assertFalse(find_nbr(self,
1717 self.pg2.sw_if_index,
1718 self.pg0._remote_hosts[3].ip6))
1719 self.assertFalse(find_nbr(self,
1720 self.pg1.sw_if_index,
1721 self.pg0._remote_hosts[2].ip6))
1724 # no longer proxy-ing...
1726 self.send_and_assert_no_replies(self.pg0, ns_pg0, "Proxy unconfigured")
1727 self.send_and_assert_no_replies(self.pg1, ns_pg1, "Proxy unconfigured")
1728 self.send_and_assert_no_replies(self.pg2, ns_pg2, "Proxy unconfigured")
1731 # no longer forwarding. traffic generates NS out of the glean/main
1734 self.pg2.add_stream(t2)
1735 self.pg_enable_capture(self.pg_interfaces)
1738 rx = self.pg0.get_capture(1)
1740 self.assertTrue(rx[0].haslayer(ICMPv6ND_NS))
1743 class TestIPNull(VppTestCase):
1744 """ IPv6 routes via NULL """
1747 def setUpClass(cls):
1748 super(TestIPNull, cls).setUpClass()
1751 def tearDownClass(cls):
1752 super(TestIPNull, cls).tearDownClass()
1755 super(TestIPNull, self).setUp()
1757 # create 2 pg interfaces
1758 self.create_pg_interfaces(range(1))
1760 for i in self.pg_interfaces:
1766 super(TestIPNull, self).tearDown()
1767 for i in self.pg_interfaces:
1771 def test_ip_null(self):
1772 """ IP NULL route """
1774 p = (Ether(src=self.pg0.remote_mac,
1775 dst=self.pg0.local_mac) /
1776 IPv6(src=self.pg0.remote_ip6, dst="2001::1") /
1777 inet6.UDP(sport=1234, dport=1234) /
1781 # A route via IP NULL that will reply with ICMP unreachables
1783 ip_unreach = VppIpRoute(
1785 [VppRoutePath("::", 0xffffffff,
1786 type=FibPathType.FIB_PATH_TYPE_ICMP_UNREACH)])
1787 ip_unreach.add_vpp_config()
1789 self.pg0.add_stream(p)
1790 self.pg_enable_capture(self.pg_interfaces)
1793 rx = self.pg0.get_capture(1)
1795 icmp = rx[ICMPv6DestUnreach]
1797 # 0 = "No route to destination"
1798 self.assertEqual(icmp.code, 0)
1800 # ICMP is rate limited. pause a bit
1804 # A route via IP NULL that will reply with ICMP prohibited
1806 ip_prohibit = VppIpRoute(
1807 self, "2001::1", 128,
1808 [VppRoutePath("::", 0xffffffff,
1809 type=FibPathType.FIB_PATH_TYPE_ICMP_PROHIBIT)])
1810 ip_prohibit.add_vpp_config()
1812 self.pg0.add_stream(p)
1813 self.pg_enable_capture(self.pg_interfaces)
1816 rx = self.pg0.get_capture(1)
1818 icmp = rx[ICMPv6DestUnreach]
1820 # 1 = "Communication with destination administratively prohibited"
1821 self.assertEqual(icmp.code, 1)
1824 class TestIPDisabled(VppTestCase):
1825 """ IPv6 disabled """
1828 def setUpClass(cls):
1829 super(TestIPDisabled, cls).setUpClass()
1832 def tearDownClass(cls):
1833 super(TestIPDisabled, cls).tearDownClass()
1836 super(TestIPDisabled, self).setUp()
1838 # create 2 pg interfaces
1839 self.create_pg_interfaces(range(2))
1843 self.pg0.config_ip6()
1844 self.pg0.resolve_ndp()
1846 # PG 1 is not IP enabled
1850 super(TestIPDisabled, self).tearDown()
1851 for i in self.pg_interfaces:
1855 def test_ip_disabled(self):
1858 MRouteItfFlags = VppEnum.vl_api_mfib_itf_flags_t
1859 MRouteEntryFlags = VppEnum.vl_api_mfib_entry_flags_t
1862 # one accepting interface, pg0, 2 forwarding interfaces
1864 route_ff_01 = VppIpMRoute(
1868 MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
1869 [VppMRoutePath(self.pg1.sw_if_index,
1870 MRouteItfFlags.MFIB_API_ITF_FLAG_ACCEPT),
1871 VppMRoutePath(self.pg0.sw_if_index,
1872 MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD)])
1873 route_ff_01.add_vpp_config()
1875 pu = (Ether(src=self.pg1.remote_mac,
1876 dst=self.pg1.local_mac) /
1877 IPv6(src="2001::1", dst=self.pg0.remote_ip6) /
1878 inet6.UDP(sport=1234, dport=1234) /
1880 pm = (Ether(src=self.pg1.remote_mac,
1881 dst=self.pg1.local_mac) /
1882 IPv6(src="2001::1", dst="ffef::1") /
1883 inet6.UDP(sport=1234, dport=1234) /
1887 # PG1 does not forward IP traffic
1889 self.send_and_assert_no_replies(self.pg1, pu, "IPv6 disabled")
1890 self.send_and_assert_no_replies(self.pg1, pm, "IPv6 disabled")
1895 self.pg1.config_ip6()
1898 # Now we get packets through
1900 self.pg1.add_stream(pu)
1901 self.pg_enable_capture(self.pg_interfaces)
1903 rx = self.pg0.get_capture(1)
1905 self.pg1.add_stream(pm)
1906 self.pg_enable_capture(self.pg_interfaces)
1908 rx = self.pg0.get_capture(1)
1913 self.pg1.unconfig_ip6()
1916 # PG1 does not forward IP traffic
1918 self.send_and_assert_no_replies(self.pg1, pu, "IPv6 disabled")
1919 self.send_and_assert_no_replies(self.pg1, pm, "IPv6 disabled")
1922 class TestIP6LoadBalance(VppTestCase):
1923 """ IPv6 Load-Balancing """
1926 def setUpClass(cls):
1927 super(TestIP6LoadBalance, cls).setUpClass()
1930 def tearDownClass(cls):
1931 super(TestIP6LoadBalance, cls).tearDownClass()
1934 super(TestIP6LoadBalance, self).setUp()
1936 self.create_pg_interfaces(range(5))
1938 mpls_tbl = VppMplsTable(self, 0)
1939 mpls_tbl.add_vpp_config()
1941 for i in self.pg_interfaces:
1948 for i in self.pg_interfaces:
1952 super(TestIP6LoadBalance, self).tearDown()
1954 def pg_send(self, input, pkts):
1955 self.vapi.cli("clear trace")
1956 input.add_stream(pkts)
1957 self.pg_enable_capture(self.pg_interfaces)
1960 def send_and_expect_load_balancing(self, input, pkts, outputs):
1961 self.pg_send(input, pkts)
1964 rx = oo._get_capture(1)
1965 self.assertNotEqual(0, len(rx))
1969 def send_and_expect_one_itf(self, input, pkts, itf):
1970 self.pg_send(input, pkts)
1971 rx = itf.get_capture(len(pkts))
1973 def test_ip6_load_balance(self):
1974 """ IPv6 Load-Balancing """
1977 # An array of packets that differ only in the destination port
1981 # - MPLS non-EOS with an entropy label
1985 port_mpls_neos_pkts = []
1989 # An array of packets that differ only in the source address
1994 for ii in range(NUM_PKTS):
1996 IPv6(dst="3000::1", src="3000:1::1") /
1997 inet6.UDP(sport=1234, dport=1234 + ii) /
1999 port_ip_pkts.append((Ether(src=self.pg0.remote_mac,
2000 dst=self.pg0.local_mac) /
2002 port_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
2003 dst=self.pg0.local_mac) /
2004 MPLS(label=66, ttl=2) /
2006 port_mpls_neos_pkts.append((Ether(src=self.pg0.remote_mac,
2007 dst=self.pg0.local_mac) /
2008 MPLS(label=67, ttl=2) /
2009 MPLS(label=77, ttl=2) /
2011 port_ent_pkts.append((Ether(src=self.pg0.remote_mac,
2012 dst=self.pg0.local_mac) /
2013 MPLS(label=67, ttl=2) /
2014 MPLS(label=14, ttl=2) /
2015 MPLS(label=999, ttl=2) /
2018 IPv6(dst="3000::1", src="3000:1::%d" % ii) /
2019 inet6.UDP(sport=1234, dport=1234) /
2021 src_ip_pkts.append((Ether(src=self.pg0.remote_mac,
2022 dst=self.pg0.local_mac) /
2024 src_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
2025 dst=self.pg0.local_mac) /
2026 MPLS(label=66, ttl=2) /
2030 # A route for the IP packets
2032 route_3000_1 = VppIpRoute(self, "3000::1", 128,
2033 [VppRoutePath(self.pg1.remote_ip6,
2034 self.pg1.sw_if_index),
2035 VppRoutePath(self.pg2.remote_ip6,
2036 self.pg2.sw_if_index)])
2037 route_3000_1.add_vpp_config()
2040 # a local-label for the EOS packets
2042 binding = VppMplsIpBind(self, 66, "3000::1", 128, is_ip6=1)
2043 binding.add_vpp_config()
2046 # An MPLS route for the non-EOS packets
2048 route_67 = VppMplsRoute(self, 67, 0,
2049 [VppRoutePath(self.pg1.remote_ip6,
2050 self.pg1.sw_if_index,
2052 VppRoutePath(self.pg2.remote_ip6,
2053 self.pg2.sw_if_index,
2055 route_67.add_vpp_config()
2058 # inject the packet on pg0 - expect load-balancing across the 2 paths
2059 # - since the default hash config is to use IP src,dst and port
2061 # We are not going to ensure equal amounts of packets across each link,
2062 # since the hash algorithm is statistical and therefore this can never
2063 # be guaranteed. But with 64 different packets we do expect some
2064 # balancing. So instead just ensure there is traffic on each link.
2066 rx = self.send_and_expect_load_balancing(self.pg0, port_ip_pkts,
2067 [self.pg1, self.pg2])
2068 n_ip_pg0 = len(rx[0])
2069 self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
2070 [self.pg1, self.pg2])
2071 self.send_and_expect_load_balancing(self.pg0, port_mpls_pkts,
2072 [self.pg1, self.pg2])
2073 self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
2074 [self.pg1, self.pg2])
2075 rx = self.send_and_expect_load_balancing(self.pg0, port_mpls_neos_pkts,
2076 [self.pg1, self.pg2])
2077 n_mpls_pg0 = len(rx[0])
2080 # change the router ID and expect the distribution changes
2082 self.vapi.set_ip_flow_hash_router_id(router_id=0x11111111)
2084 rx = self.send_and_expect_load_balancing(self.pg0, port_ip_pkts,
2085 [self.pg1, self.pg2])
2086 self.assertNotEqual(n_ip_pg0, len(rx[0]))
2088 rx = self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
2089 [self.pg1, self.pg2])
2090 self.assertNotEqual(n_mpls_pg0, len(rx[0]))
2093 # The packets with Entropy label in should not load-balance,
2094 # since the Entropy value is fixed.
2096 self.send_and_expect_one_itf(self.pg0, port_ent_pkts, self.pg1)
2099 # change the flow hash config so it's only IP src,dst
2100 # - now only the stream with differing source address will
2103 self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, proto=1,
2104 sport=0, dport=0, is_ipv6=1)
2106 self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
2107 [self.pg1, self.pg2])
2108 self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
2109 [self.pg1, self.pg2])
2110 self.send_and_expect_one_itf(self.pg0, port_ip_pkts, self.pg2)
2113 # change the flow hash config back to defaults
2115 self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, sport=1, dport=1,
2119 # Recursive prefixes
2120 # - testing that 2 stages of load-balancing occurs and there is no
2121 # polarisation (i.e. only 2 of 4 paths are used)
2126 for ii in range(257):
2127 port_pkts.append((Ether(src=self.pg0.remote_mac,
2128 dst=self.pg0.local_mac) /
2131 inet6.UDP(sport=1234,
2133 Raw(b'\xa5' * 100)))
2134 src_pkts.append((Ether(src=self.pg0.remote_mac,
2135 dst=self.pg0.local_mac) /
2137 src="4000:1::%d" % ii) /
2138 inet6.UDP(sport=1234, dport=1234) /
2139 Raw(b'\xa5' * 100)))
2141 route_3000_2 = VppIpRoute(self, "3000::2", 128,
2142 [VppRoutePath(self.pg3.remote_ip6,
2143 self.pg3.sw_if_index),
2144 VppRoutePath(self.pg4.remote_ip6,
2145 self.pg4.sw_if_index)])
2146 route_3000_2.add_vpp_config()
2148 route_4000_1 = VppIpRoute(self, "4000::1", 128,
2149 [VppRoutePath("3000::1",
2151 VppRoutePath("3000::2",
2153 route_4000_1.add_vpp_config()
2156 # inject the packet on pg0 - expect load-balancing across all 4 paths
2158 self.vapi.cli("clear trace")
2159 self.send_and_expect_load_balancing(self.pg0, port_pkts,
2160 [self.pg1, self.pg2,
2161 self.pg3, self.pg4])
2162 self.send_and_expect_load_balancing(self.pg0, src_pkts,
2163 [self.pg1, self.pg2,
2164 self.pg3, self.pg4])
2167 # Recursive prefixes
2168 # - testing that 2 stages of load-balancing no choices
2172 for ii in range(257):
2173 port_pkts.append((Ether(src=self.pg0.remote_mac,
2174 dst=self.pg0.local_mac) /
2177 inet6.UDP(sport=1234,
2179 Raw(b'\xa5' * 100)))
2181 route_5000_2 = VppIpRoute(self, "5000::2", 128,
2182 [VppRoutePath(self.pg3.remote_ip6,
2183 self.pg3.sw_if_index)])
2184 route_5000_2.add_vpp_config()
2186 route_6000_1 = VppIpRoute(self, "6000::1", 128,
2187 [VppRoutePath("5000::2",
2189 route_6000_1.add_vpp_config()
2192 # inject the packet on pg0 - expect load-balancing across all 4 paths
2194 self.vapi.cli("clear trace")
2195 self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg3)
2198 class IP6PuntSetup(object):
2199 """ Setup for IPv6 Punt Police/Redirect """
2201 def punt_setup(self):
2202 self.create_pg_interfaces(range(4))
2204 for i in self.pg_interfaces:
2209 self.pkt = (Ether(src=self.pg0.remote_mac,
2210 dst=self.pg0.local_mac) /
2211 IPv6(src=self.pg0.remote_ip6,
2212 dst=self.pg0.local_ip6) /
2213 inet6.TCP(sport=1234, dport=1234) /
2216 def punt_teardown(self):
2217 for i in self.pg_interfaces:
2222 class TestIP6Punt(IP6PuntSetup, VppTestCase):
2223 """ IPv6 Punt Police/Redirect """
2226 super(TestIP6Punt, self).setUp()
2227 super(TestIP6Punt, self).punt_setup()
2230 super(TestIP6Punt, self).punt_teardown()
2231 super(TestIP6Punt, self).tearDown()
2233 def test_ip_punt(self):
2234 """ IP6 punt police and redirect """
2236 pkts = self.pkt * 1025
2239 # Configure a punt redirect via pg1.
2241 nh_addr = self.pg1.remote_ip6
2242 ip_punt_redirect = VppIpPuntRedirect(self, self.pg0.sw_if_index,
2243 self.pg1.sw_if_index, nh_addr)
2244 ip_punt_redirect.add_vpp_config()
2246 self.send_and_expect(self.pg0, pkts, self.pg1)
2251 policer = VppPolicer(self, "ip6-punt", 400, 0, 10, 0, rate_type=1)
2252 policer.add_vpp_config()
2253 ip_punt_policer = VppIpPuntPolicer(self, policer.policer_index,
2255 ip_punt_policer.add_vpp_config()
2257 self.vapi.cli("clear trace")
2258 self.pg0.add_stream(pkts)
2259 self.pg_enable_capture(self.pg_interfaces)
2263 # the number of packet received should be greater than 0,
2264 # but not equal to the number sent, since some were policed
2266 rx = self.pg1._get_capture(1)
2267 stats = policer.get_stats()
2269 # Single rate policer - expect conform, violate but no exceed
2270 self.assertGreater(stats['conform_packets'], 0)
2271 self.assertEqual(stats['exceed_packets'], 0)
2272 self.assertGreater(stats['violate_packets'], 0)
2274 self.assertGreater(len(rx), 0)
2275 self.assertLess(len(rx), len(pkts))
2278 # remove the policer. back to full rx
2280 ip_punt_policer.remove_vpp_config()
2281 policer.remove_vpp_config()
2282 self.send_and_expect(self.pg0, pkts, self.pg1)
2285 # remove the redirect. expect full drop.
2287 ip_punt_redirect.remove_vpp_config()
2288 self.send_and_assert_no_replies(self.pg0, pkts,
2289 "IP no punt config")
2292 # Add a redirect that is not input port selective
2294 ip_punt_redirect = VppIpPuntRedirect(self, 0xffffffff,
2295 self.pg1.sw_if_index, nh_addr)
2296 ip_punt_redirect.add_vpp_config()
2297 self.send_and_expect(self.pg0, pkts, self.pg1)
2298 ip_punt_redirect.remove_vpp_config()
2300 def test_ip_punt_dump(self):
2301 """ IP6 punt redirect dump"""
2304 # Configure a punt redirects
2306 nh_address = self.pg3.remote_ip6
2307 ipr_03 = VppIpPuntRedirect(self, self.pg0.sw_if_index,
2308 self.pg3.sw_if_index, nh_address)
2309 ipr_13 = VppIpPuntRedirect(self, self.pg1.sw_if_index,
2310 self.pg3.sw_if_index, nh_address)
2311 ipr_23 = VppIpPuntRedirect(self, self.pg2.sw_if_index,
2312 self.pg3.sw_if_index, '0::0')
2313 ipr_03.add_vpp_config()
2314 ipr_13.add_vpp_config()
2315 ipr_23.add_vpp_config()
2318 # Dump pg0 punt redirects
2320 self.assertTrue(ipr_03.query_vpp_config())
2321 self.assertTrue(ipr_13.query_vpp_config())
2322 self.assertTrue(ipr_23.query_vpp_config())
2325 # Dump punt redirects for all interfaces
2327 punts = self.vapi.ip_punt_redirect_dump(0xffffffff, is_ipv6=1)
2328 self.assertEqual(len(punts), 3)
2330 self.assertEqual(p.punt.tx_sw_if_index, self.pg3.sw_if_index)
2331 self.assertNotEqual(punts[1].punt.nh, self.pg3.remote_ip6)
2332 self.assertEqual(str(punts[2].punt.nh), '::')
2335 class TestIP6PuntHandoff(IP6PuntSetup, VppTestCase):
2336 """ IPv6 Punt Police/Redirect """
2337 vpp_worker_count = 2
2340 super(TestIP6PuntHandoff, self).setUp()
2341 super(TestIP6PuntHandoff, self).punt_setup()
2344 super(TestIP6PuntHandoff, self).punt_teardown()
2345 super(TestIP6PuntHandoff, self).tearDown()
2347 def test_ip_punt(self):
2348 """ IP6 punt policer thread handoff """
2349 pkts = self.pkt * NUM_PKTS
2352 # Configure a punt redirect via pg1.
2354 nh_addr = self.pg1.remote_ip6
2355 ip_punt_redirect = VppIpPuntRedirect(self, self.pg0.sw_if_index,
2356 self.pg1.sw_if_index, nh_addr)
2357 ip_punt_redirect.add_vpp_config()
2359 action_tx = PolicerAction(
2360 VppEnum.vl_api_sse2_qos_action_type_t.SSE2_QOS_ACTION_API_TRANSMIT,
2363 # This policer drops no packets, we are just
2364 # testing that they get to the right thread.
2366 policer = VppPolicer(self, "ip6-punt", 400, 0, 10, 0, 1,
2367 0, 0, False, action_tx, action_tx, action_tx)
2368 policer.add_vpp_config()
2369 ip_punt_policer = VppIpPuntPolicer(self, policer.policer_index,
2371 ip_punt_policer.add_vpp_config()
2373 for worker in [0, 1]:
2374 self.send_and_expect(self.pg0, pkts, self.pg1, worker=worker)
2376 self.logger.debug(self.vapi.cli("show trace max 100"))
2378 # Combined stats, all threads
2379 stats = policer.get_stats()
2381 # Single rate policer - expect conform, violate but no exceed
2382 self.assertGreater(stats['conform_packets'], 0)
2383 self.assertEqual(stats['exceed_packets'], 0)
2384 self.assertGreater(stats['violate_packets'], 0)
2386 # Worker 0, should have done all the policing
2387 stats0 = policer.get_stats(worker=0)
2388 self.assertEqual(stats, stats0)
2390 # Worker 1, should have handed everything off
2391 stats1 = policer.get_stats(worker=1)
2392 self.assertEqual(stats1['conform_packets'], 0)
2393 self.assertEqual(stats1['exceed_packets'], 0)
2394 self.assertEqual(stats1['violate_packets'], 0)
2396 # Bind the policer to worker 1 and repeat
2397 policer.bind_vpp_config(1, True)
2398 for worker in [0, 1]:
2399 self.send_and_expect(self.pg0, pkts, self.pg1, worker=worker)
2400 self.logger.debug(self.vapi.cli("show trace max 100"))
2402 # The 2 workers should now have policed the same amount
2403 stats = policer.get_stats()
2404 stats0 = policer.get_stats(worker=0)
2405 stats1 = policer.get_stats(worker=1)
2407 self.assertGreater(stats0['conform_packets'], 0)
2408 self.assertEqual(stats0['exceed_packets'], 0)
2409 self.assertGreater(stats0['violate_packets'], 0)
2411 self.assertGreater(stats1['conform_packets'], 0)
2412 self.assertEqual(stats1['exceed_packets'], 0)
2413 self.assertGreater(stats1['violate_packets'], 0)
2415 self.assertEqual(stats0['conform_packets'] + stats1['conform_packets'],
2416 stats['conform_packets'])
2418 self.assertEqual(stats0['violate_packets'] + stats1['violate_packets'],
2419 stats['violate_packets'])
2421 # Unbind the policer and repeat
2422 policer.bind_vpp_config(1, False)
2423 for worker in [0, 1]:
2424 self.send_and_expect(self.pg0, pkts, self.pg1, worker=worker)
2425 self.logger.debug(self.vapi.cli("show trace max 100"))
2427 # The policer should auto-bind to worker 0 when packets arrive
2428 stats = policer.get_stats()
2429 stats0new = policer.get_stats(worker=0)
2430 stats1new = policer.get_stats(worker=1)
2432 self.assertGreater(stats0new['conform_packets'],
2433 stats0['conform_packets'])
2434 self.assertEqual(stats0new['exceed_packets'], 0)
2435 self.assertGreater(stats0new['violate_packets'],
2436 stats0['violate_packets'])
2438 self.assertEqual(stats1, stats1new)
2443 ip_punt_policer.remove_vpp_config()
2444 policer.remove_vpp_config()
2445 ip_punt_redirect.remove_vpp_config()
2448 class TestIPDeag(VppTestCase):
2449 """ IPv6 Deaggregate Routes """
2452 def setUpClass(cls):
2453 super(TestIPDeag, cls).setUpClass()
2456 def tearDownClass(cls):
2457 super(TestIPDeag, cls).tearDownClass()
2460 super(TestIPDeag, self).setUp()
2462 self.create_pg_interfaces(range(3))
2464 for i in self.pg_interfaces:
2470 super(TestIPDeag, self).tearDown()
2471 for i in self.pg_interfaces:
2475 def test_ip_deag(self):
2476 """ IP Deag Routes """
2479 # Create a table to be used for:
2480 # 1 - another destination address lookup
2481 # 2 - a source address lookup
2483 table_dst = VppIpTable(self, 1, is_ip6=1)
2484 table_src = VppIpTable(self, 2, is_ip6=1)
2485 table_dst.add_vpp_config()
2486 table_src.add_vpp_config()
2489 # Add a route in the default table to point to a deag/
2490 # second lookup in each of these tables
2492 route_to_dst = VppIpRoute(self, "1::1", 128,
2496 route_to_src = VppIpRoute(
2501 type=FibPathType.FIB_PATH_TYPE_SOURCE_LOOKUP)])
2503 route_to_dst.add_vpp_config()
2504 route_to_src.add_vpp_config()
2507 # packets to these destination are dropped, since they'll
2508 # hit the respective default routes in the second table
2510 p_dst = (Ether(src=self.pg0.remote_mac,
2511 dst=self.pg0.local_mac) /
2512 IPv6(src="5::5", dst="1::1") /
2513 inet6.TCP(sport=1234, dport=1234) /
2515 p_src = (Ether(src=self.pg0.remote_mac,
2516 dst=self.pg0.local_mac) /
2517 IPv6(src="2::2", dst="1::2") /
2518 inet6.TCP(sport=1234, dport=1234) /
2520 pkts_dst = p_dst * 257
2521 pkts_src = p_src * 257
2523 self.send_and_assert_no_replies(self.pg0, pkts_dst,
2525 self.send_and_assert_no_replies(self.pg0, pkts_src,
2529 # add a route in the dst table to forward via pg1
2531 route_in_dst = VppIpRoute(self, "1::1", 128,
2532 [VppRoutePath(self.pg1.remote_ip6,
2533 self.pg1.sw_if_index)],
2535 route_in_dst.add_vpp_config()
2537 self.send_and_expect(self.pg0, pkts_dst, self.pg1)
2540 # add a route in the src table to forward via pg2
2542 route_in_src = VppIpRoute(self, "2::2", 128,
2543 [VppRoutePath(self.pg2.remote_ip6,
2544 self.pg2.sw_if_index)],
2546 route_in_src.add_vpp_config()
2547 self.send_and_expect(self.pg0, pkts_src, self.pg2)
2550 # loop in the lookup DP
2552 route_loop = VppIpRoute(self, "3::3", 128,
2555 route_loop.add_vpp_config()
2557 p_l = (Ether(src=self.pg0.remote_mac,
2558 dst=self.pg0.local_mac) /
2559 IPv6(src="3::4", dst="3::3") /
2560 inet6.TCP(sport=1234, dport=1234) /
2563 self.send_and_assert_no_replies(self.pg0, p_l * 257,
2567 class TestIP6Input(VppTestCase):
2568 """ IPv6 Input Exception Test Cases """
2571 def setUpClass(cls):
2572 super(TestIP6Input, cls).setUpClass()
2575 def tearDownClass(cls):
2576 super(TestIP6Input, cls).tearDownClass()
2579 super(TestIP6Input, self).setUp()
2581 self.create_pg_interfaces(range(2))
2583 for i in self.pg_interfaces:
2589 super(TestIP6Input, self).tearDown()
2590 for i in self.pg_interfaces:
2594 def test_ip_input_icmp_reply(self):
2595 """ IP6 Input Exception - Return ICMP (3,0) """
2597 # hop limit - ICMP replies
2599 p_version = (Ether(src=self.pg0.remote_mac,
2600 dst=self.pg0.local_mac) /
2601 IPv6(src=self.pg0.remote_ip6,
2602 dst=self.pg1.remote_ip6,
2604 inet6.UDP(sport=1234, dport=1234) /
2607 rx = self.send_and_expect(self.pg0, p_version * NUM_PKTS, self.pg0)
2609 icmp = rx[ICMPv6TimeExceeded]
2611 # 0: "hop limit exceeded in transit",
2612 self.assertEqual((icmp.type, icmp.code), (3, 0))
2614 icmpv6_data = '\x0a' * 18
2616 all_1s = "FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF"
2618 @parameterized.expand([
2619 # Name, src, dst, l4proto, msg, timeout
2620 ("src='iface', dst='iface'", None, None,
2621 inet6.UDP(sport=1234, dport=1234), "funky version", None),
2622 ("src='All 0's', dst='iface'", all_0s, None,
2623 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2624 ("src='iface', dst='All 0's'", None, all_0s,
2625 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2626 ("src='All 1's', dst='iface'", all_1s, None,
2627 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2628 ("src='iface', dst='All 1's'", None, all_1s,
2629 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2630 ("src='All 1's', dst='All 1's'", all_1s, all_1s,
2631 ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
2634 def test_ip_input_no_replies(self, name, src, dst, l4, msg, timeout):
2636 self._testMethodDoc = 'IPv6 Input Exception - %s' % name
2638 p_version = (Ether(src=self.pg0.remote_mac,
2639 dst=self.pg0.local_mac) /
2640 IPv6(src=src or self.pg0.remote_ip6,
2641 dst=dst or self.pg1.remote_ip6,
2646 self.send_and_assert_no_replies(self.pg0, p_version * NUM_PKTS,
2650 def test_hop_by_hop(self):
2651 """ Hop-by-hop header test """
2653 p = (Ether(src=self.pg0.remote_mac,
2654 dst=self.pg0.local_mac) /
2655 IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6) /
2656 IPv6ExtHdrHopByHop() /
2657 inet6.UDP(sport=1234, dport=1234) /
2660 self.pg0.add_stream(p)
2661 self.pg_enable_capture(self.pg_interfaces)
2665 class TestIPReplace(VppTestCase):
2666 """ IPv6 Table Replace """
2669 def setUpClass(cls):
2670 super(TestIPReplace, cls).setUpClass()
2673 def tearDownClass(cls):
2674 super(TestIPReplace, cls).tearDownClass()
2677 super(TestIPReplace, self).setUp()
2679 self.create_pg_interfaces(range(4))
2684 for i in self.pg_interfaces:
2687 i.generate_remote_hosts(2)
2688 self.tables.append(VppIpTable(self, table_id,
2689 True).add_vpp_config())
2693 super(TestIPReplace, self).tearDown()
2694 for i in self.pg_interfaces:
2698 def test_replace(self):
2699 """ IP Table Replace """
2701 MRouteItfFlags = VppEnum.vl_api_mfib_itf_flags_t
2702 MRouteEntryFlags = VppEnum.vl_api_mfib_entry_flags_t
2704 links = [self.pg0, self.pg1, self.pg2, self.pg3]
2705 routes = [[], [], [], []]
2707 # the sizes of 'empty' tables
2708 for t in self.tables:
2709 self.assertEqual(len(t.dump()), 2)
2710 self.assertEqual(len(t.mdump()), 5)
2712 # load up the tables with some routes
2713 for ii, t in enumerate(self.tables):
2714 for jj in range(1, N_ROUTES):
2716 self, "2001::%d" % jj if jj != 0 else "2001::", 128,
2717 [VppRoutePath(links[ii].remote_hosts[0].ip6,
2718 links[ii].sw_if_index),
2719 VppRoutePath(links[ii].remote_hosts[1].ip6,
2720 links[ii].sw_if_index)],
2721 table_id=t.table_id).add_vpp_config()
2722 multi = VppIpMRoute(
2724 "ff:2001::%d" % jj, 128,
2725 MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
2726 [VppMRoutePath(self.pg0.sw_if_index,
2727 MRouteItfFlags.MFIB_API_ITF_FLAG_ACCEPT,
2728 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
2729 VppMRoutePath(self.pg1.sw_if_index,
2730 MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD,
2731 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
2732 VppMRoutePath(self.pg2.sw_if_index,
2733 MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD,
2734 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
2735 VppMRoutePath(self.pg3.sw_if_index,
2736 MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD,
2737 proto=FibPathProto.FIB_PATH_NH_PROTO_IP6)],
2738 table_id=t.table_id).add_vpp_config()
2739 routes[ii].append({'uni': uni,
2743 # replace the tables a few times
2746 # replace each table
2747 for t in self.tables:
2750 # all the routes are still there
2751 for ii, t in enumerate(self.tables):
2754 for r in routes[ii]:
2755 self.assertTrue(find_route_in_dump(dump, r['uni'], t))
2756 self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
2758 # redownload the even numbered routes
2759 for ii, t in enumerate(self.tables):
2760 for jj in range(0, N_ROUTES, 2):
2761 routes[ii][jj]['uni'].add_vpp_config()
2762 routes[ii][jj]['multi'].add_vpp_config()
2764 # signal each table converged
2765 for t in self.tables:
2768 # we should find the even routes, but not the odd
2769 for ii, t in enumerate(self.tables):
2772 for jj in range(0, N_ROUTES, 2):
2773 self.assertTrue(find_route_in_dump(
2774 dump, routes[ii][jj]['uni'], t))
2775 self.assertTrue(find_mroute_in_dump(
2776 mdump, routes[ii][jj]['multi'], t))
2777 for jj in range(1, N_ROUTES - 1, 2):
2778 self.assertFalse(find_route_in_dump(
2779 dump, routes[ii][jj]['uni'], t))
2780 self.assertFalse(find_mroute_in_dump(
2781 mdump, routes[ii][jj]['multi'], t))
2783 # reload all the routes
2784 for ii, t in enumerate(self.tables):
2785 for r in routes[ii]:
2786 r['uni'].add_vpp_config()
2787 r['multi'].add_vpp_config()
2789 # all the routes are still there
2790 for ii, t in enumerate(self.tables):
2793 for r in routes[ii]:
2794 self.assertTrue(find_route_in_dump(dump, r['uni'], t))
2795 self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
2798 # finally flush the tables for good measure
2800 for t in self.tables:
2802 self.assertEqual(len(t.dump()), 2)
2803 self.assertEqual(len(t.mdump()), 5)
2806 class TestIP6Replace(VppTestCase):
2807 """ IPv4 Interface Address Replace """
2810 def setUpClass(cls):
2811 super(TestIP6Replace, cls).setUpClass()
2814 def tearDownClass(cls):
2815 super(TestIP6Replace, cls).tearDownClass()
2818 super(TestIP6Replace, self).setUp()
2820 self.create_pg_interfaces(range(4))
2822 for i in self.pg_interfaces:
2826 super(TestIP6Replace, self).tearDown()
2827 for i in self.pg_interfaces:
2830 def get_n_pfxs(self, intf):
2831 return len(self.vapi.ip_address_dump(intf.sw_if_index, True))
2833 def test_replace(self):
2834 """ IP interface address replace """
2836 intf_pfxs = [[], [], [], []]
2838 # add prefixes to each of the interfaces
2839 for i in range(len(self.pg_interfaces)):
2840 intf = self.pg_interfaces[i]
2843 addr = "2001:16:%d::1" % intf.sw_if_index
2844 a = VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
2845 intf_pfxs[i].append(a)
2847 # 2001:16:x::2/64 - a different address in the same subnet as above
2848 addr = "2001:16:%d::2" % intf.sw_if_index
2849 a = VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
2850 intf_pfxs[i].append(a)
2852 # 2001:15:x::2/64 - a different address and subnet
2853 addr = "2001:15:%d::2" % intf.sw_if_index
2854 a = VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
2855 intf_pfxs[i].append(a)
2857 # a dump should n_address in it
2858 for intf in self.pg_interfaces:
2859 self.assertEqual(self.get_n_pfxs(intf), 3)
2862 # remove all the address thru a replace
2864 self.vapi.sw_interface_address_replace_begin()
2865 self.vapi.sw_interface_address_replace_end()
2866 for intf in self.pg_interfaces:
2867 self.assertEqual(self.get_n_pfxs(intf), 0)
2870 # add all the interface addresses back
2875 for intf in self.pg_interfaces:
2876 self.assertEqual(self.get_n_pfxs(intf), 3)
2879 # replace again, but this time update/re-add the address on the first
2882 self.vapi.sw_interface_address_replace_begin()
2884 for p in intf_pfxs[:2]:
2888 self.vapi.sw_interface_address_replace_end()
2890 # on the first two the address still exist,
2891 # on the other two they do not
2892 for intf in self.pg_interfaces[:2]:
2893 self.assertEqual(self.get_n_pfxs(intf), 3)
2894 for p in intf_pfxs[:2]:
2896 self.assertTrue(v.query_vpp_config())
2897 for intf in self.pg_interfaces[2:]:
2898 self.assertEqual(self.get_n_pfxs(intf), 0)
2901 # add all the interface addresses back on the last two
2903 for p in intf_pfxs[2:]:
2906 for intf in self.pg_interfaces:
2907 self.assertEqual(self.get_n_pfxs(intf), 3)
2910 # replace again, this time add different prefixes on all the interfaces
2912 self.vapi.sw_interface_address_replace_begin()
2915 for intf in self.pg_interfaces:
2917 addr = "2001:18:%d::1" % intf.sw_if_index
2918 pfxs.append(VppIpInterfaceAddress(self, intf, addr,
2919 64).add_vpp_config())
2921 self.vapi.sw_interface_address_replace_end()
2923 # only .18 should exist on each interface
2924 for intf in self.pg_interfaces:
2925 self.assertEqual(self.get_n_pfxs(intf), 1)
2927 self.assertTrue(pfx.query_vpp_config())
2932 self.vapi.sw_interface_address_replace_begin()
2933 self.vapi.sw_interface_address_replace_end()
2934 for intf in self.pg_interfaces:
2935 self.assertEqual(self.get_n_pfxs(intf), 0)
2938 # add prefixes to each interface. post-begin add the prefix from
2939 # interface X onto interface Y. this would normally be an error
2940 # since it would generate a 'duplicate address' warning. but in
2941 # this case, since what is newly downloaded is sane, it's ok
2943 for intf in self.pg_interfaces:
2945 addr = "2001:18:%d::1" % intf.sw_if_index
2946 VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
2948 self.vapi.sw_interface_address_replace_begin()
2951 for intf in self.pg_interfaces:
2953 addr = "2001:18:%d::1" % (intf.sw_if_index + 1)
2954 pfxs.append(VppIpInterfaceAddress(self, intf,
2955 addr, 64).add_vpp_config())
2957 self.vapi.sw_interface_address_replace_end()
2959 self.logger.info(self.vapi.cli("sh int addr"))
2961 for intf in self.pg_interfaces:
2962 self.assertEqual(self.get_n_pfxs(intf), 1)
2964 self.assertTrue(pfx.query_vpp_config())
2967 class TestIP6LinkLocal(VppTestCase):
2968 """ IPv6 Link Local """
2971 def setUpClass(cls):
2972 super(TestIP6LinkLocal, cls).setUpClass()
2975 def tearDownClass(cls):
2976 super(TestIP6LinkLocal, cls).tearDownClass()
2979 super(TestIP6LinkLocal, self).setUp()
2981 self.create_pg_interfaces(range(2))
2983 for i in self.pg_interfaces:
2987 super(TestIP6LinkLocal, self).tearDown()
2988 for i in self.pg_interfaces:
2991 def test_ip6_ll(self):
2992 """ IPv6 Link Local """
2995 # two APIs to add a link local address.
2996 # 1 - just like any other prefix
2997 # 2 - with the special set LL API
3001 # First with the API to set a 'normal' prefix
3008 self.pg0.sw_if_index,
3009 self.pg0.remote_mac,
3010 ll2).add_vpp_config()
3012 VppIpInterfaceAddress(self, self.pg0, ll1, 128).add_vpp_config()
3015 # should be able to ping the ll
3017 p_echo_request_1 = (Ether(src=self.pg0.remote_mac,
3018 dst=self.pg0.local_mac) /
3021 ICMPv6EchoRequest())
3023 self.send_and_expect(self.pg0, [p_echo_request_1], self.pg0)
3026 # change the link-local on pg0
3028 v_ll3 = VppIpInterfaceAddress(self, self.pg0,
3029 ll3, 128).add_vpp_config()
3031 p_echo_request_3 = (Ether(src=self.pg0.remote_mac,
3032 dst=self.pg0.local_mac) /
3035 ICMPv6EchoRequest())
3037 self.send_and_expect(self.pg0, [p_echo_request_3], self.pg0)
3040 # set a normal v6 prefix on the link
3042 self.pg0.config_ip6()
3044 self.send_and_expect(self.pg0, [p_echo_request_3], self.pg0)
3046 # the link-local cannot be removed
3047 with self.vapi.assert_negative_api_retval():
3048 v_ll3.remove_vpp_config()
3051 # Use the specific link-local API on pg1
3053 VppIp6LinkLocalAddress(self, self.pg1, ll1).add_vpp_config()
3054 self.send_and_expect(self.pg1, [p_echo_request_1], self.pg1)
3056 VppIp6LinkLocalAddress(self, self.pg1, ll3).add_vpp_config()
3057 self.send_and_expect(self.pg1, [p_echo_request_3], self.pg1)
3059 def test_ip6_ll_p2p(self):
3060 """ IPv6 Link Local P2P (GRE)"""
3062 self.pg0.config_ip4()
3063 self.pg0.resolve_arp()
3064 gre_if = VppGreInterface(self,
3066 self.pg0.remote_ip4).add_vpp_config()
3072 VppIpInterfaceAddress(self, gre_if, ll1, 128).add_vpp_config()
3074 self.logger.info(self.vapi.cli("sh ip6-ll gre0 fe80:2::2"))
3076 p_echo_request_1 = (Ether(src=self.pg0.remote_mac,
3077 dst=self.pg0.local_mac) /
3078 IP(src=self.pg0.remote_ip4,
3079 dst=self.pg0.local_ip4) /
3081 IPv6(src=ll2, dst=ll1) /
3082 ICMPv6EchoRequest())
3083 self.send_and_expect(self.pg0, [p_echo_request_1], self.pg0)
3085 self.pg0.unconfig_ip4()
3086 gre_if.remove_vpp_config()
3088 def test_ip6_ll_p2mp(self):
3089 """ IPv6 Link Local P2MP (GRE)"""
3091 self.pg0.config_ip4()
3092 self.pg0.resolve_arp()
3094 gre_if = VppGreInterface(
3098 mode=(VppEnum.vl_api_tunnel_mode_t.
3099 TUNNEL_API_MODE_MP)).add_vpp_config()
3105 VppIpInterfaceAddress(self, gre_if, ll1, 128).add_vpp_config()
3107 p_echo_request_1 = (Ether(src=self.pg0.remote_mac,
3108 dst=self.pg0.local_mac) /
3109 IP(src=self.pg0.remote_ip4,
3110 dst=self.pg0.local_ip4) /
3112 IPv6(src=ll2, dst=ll1) /
3113 ICMPv6EchoRequest())
3115 # no route back at this point
3116 self.send_and_assert_no_replies(self.pg0, [p_echo_request_1])
3118 # add teib entry for the peer
3119 teib = VppTeib(self, gre_if, ll2, self.pg0.remote_ip4)
3120 teib.add_vpp_config()
3122 self.logger.info(self.vapi.cli("sh ip6-ll gre0 %s" % ll2))
3123 self.send_and_expect(self.pg0, [p_echo_request_1], self.pg0)
3126 self.pg0.unconfig_ip4()
3129 class TestIPv6PathMTU(VppTestCase):
3130 """ IPv6 Path MTU """
3133 super(TestIPv6PathMTU, self).setUp()
3135 self.create_pg_interfaces(range(2))
3137 # setup all interfaces
3138 for i in self.pg_interfaces:
3144 super(TestIPv6PathMTU, self).tearDown()
3145 for i in self.pg_interfaces:
3149 def test_path_mtu_local(self):
3150 """ Path MTU for attached neighbour """
3152 self.vapi.cli("set log class ip level debug")
3154 # The goal here is not test that fragmentation works correctly,
3155 # that's done elsewhere, the intent is to ensure that the Path MTU
3156 # settings are honoured.
3160 # IPv6 will only frag locally generated packets, so use tunnelled
3161 # packets post encap
3163 tun = VppIpIpTunInterface(
3167 self.pg1.remote_ip6)
3168 tun.add_vpp_config()
3172 # set the interface MTU to a reasonable value
3173 self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index,
3176 p_2k = (Ether(dst=self.pg0.local_mac,
3177 src=self.pg0.remote_mac) /
3178 IPv6(src=self.pg0.remote_ip6,
3179 dst=tun.remote_ip6) /
3180 UDP(sport=1234, dport=5678) /
3182 p_1k = (Ether(dst=self.pg0.local_mac,
3183 src=self.pg0.remote_mac) /
3184 IPv6(src=self.pg0.remote_ip6,
3185 dst=tun.remote_ip6) /
3186 UDP(sport=1234, dport=5678) /
3189 nbr = VppNeighbor(self,
3190 self.pg1.sw_if_index,
3191 self.pg1.remote_mac,
3192 self.pg1.remote_ip6).add_vpp_config()
3194 # this is now the interface MTU frags
3195 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=2)
3196 self.send_and_expect(self.pg0, [p_1k], self.pg1)
3198 # drop the path MTU for this neighbour to below the interface MTU
3200 pmtu = VppIpPathMtu(self, self.pg1.remote_ip6, 1300).add_vpp_config()
3202 # print/format the adj delegate and trackers
3203 self.logger.info(self.vapi.cli("sh ip pmtu"))
3204 self.logger.info(self.vapi.cli("sh adj 7"))
3206 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
3207 self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
3209 # increase the path MTU to more than the interface
3210 # expect to use the interface MTU
3213 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=2)
3214 self.send_and_expect(self.pg0, [p_1k], self.pg1)
3216 # go back to an MTU from the path
3219 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
3220 self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
3222 # raise the interface's MTU
3223 # should still use that of the path
3224 self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index,
3226 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
3227 self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
3229 # set path high and interface low
3231 self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index,
3233 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
3234 self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
3236 # remove the path MTU
3237 self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index,
3241 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=2)
3242 self.send_and_expect(self.pg0, [p_1k], self.pg1)
3244 def test_path_mtu_remote(self):
3245 """ Path MTU for remote neighbour """
3247 self.vapi.cli("set log class ip level debug")
3249 # The goal here is not test that fragmentation works correctly,
3250 # that's done elsewhere, the intent is to ensure that the Path MTU
3251 # settings are honoured.
3257 [VppRoutePath(self.pg1.remote_ip6,
3258 self.pg1.sw_if_index)]).add_vpp_config()
3261 # IPv6 will only frag locally generated packets, so use tunnelled
3262 # packets post encap
3264 tun = VppIpIpTunInterface(
3269 tun.add_vpp_config()
3273 # set the interface MTU to a reasonable value
3274 self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index,
3277 p_2k = (Ether(dst=self.pg0.local_mac,
3278 src=self.pg0.remote_mac) /
3279 IPv6(src=self.pg0.remote_ip6,
3280 dst=tun.remote_ip6) /
3281 UDP(sport=1234, dport=5678) /
3283 p_1k = (Ether(dst=self.pg0.local_mac,
3284 src=self.pg0.remote_mac) /
3285 IPv6(src=self.pg0.remote_ip6,
3286 dst=tun.remote_ip6) /
3287 UDP(sport=1234, dport=5678) /
3290 nbr = VppNeighbor(self,
3291 self.pg1.sw_if_index,
3292 self.pg1.remote_mac,
3293 self.pg1.remote_ip6).add_vpp_config()
3295 # this is now the interface MTU frags
3296 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=2)
3297 self.send_and_expect(self.pg0, [p_1k], self.pg1)
3299 # drop the path MTU for this neighbour to below the interface MTU
3301 pmtu = VppIpPathMtu(self, tun_dst, 1300).add_vpp_config()
3303 # print/format the fib entry/dpo
3304 self.logger.info(self.vapi.cli("sh ip6 fib 2001::1"))
3306 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
3307 self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
3309 # increase the path MTU to more than the interface
3310 # expect to use the interface MTU
3313 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=2)
3314 self.send_and_expect(self.pg0, [p_1k], self.pg1)
3316 # go back to an MTU from the path
3319 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
3320 self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
3322 # raise the interface's MTU
3323 # should still use that of the path
3324 self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index,
3326 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
3327 self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
3329 # turn the tun_dst into an attached neighbour
3330 route.modify([VppRoutePath("::",
3331 self.pg1.sw_if_index)])
3332 nbr2 = VppNeighbor(self,
3333 self.pg1.sw_if_index,
3334 self.pg1.remote_mac,
3335 tun_dst).add_vpp_config()
3337 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
3338 self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
3340 # add back to not attached
3341 nbr2.remove_vpp_config()
3342 route.modify([VppRoutePath(self.pg1.remote_ip6,
3343 self.pg1.sw_if_index)])
3345 # set path high and interface low
3347 self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index,
3349 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
3350 self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
3352 # remove the path MTU
3353 self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index,
3355 pmtu.remove_vpp_config()
3356 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=2)
3357 self.send_and_expect(self.pg0, [p_1k], self.pg1)
3360 class TestIPFibSource(VppTestCase):
3361 """ IPv6 Table FibSource """
3364 def setUpClass(cls):
3365 super(TestIPFibSource, cls).setUpClass()
3368 def tearDownClass(cls):
3369 super(TestIPFibSource, cls).tearDownClass()
3372 super(TestIPFibSource, self).setUp()
3374 self.create_pg_interfaces(range(2))
3376 for i in self.pg_interfaces:
3380 i.generate_remote_hosts(2)
3381 i.configure_ipv6_neighbors()
3384 super(TestIPFibSource, self).tearDown()
3385 for i in self.pg_interfaces:
3389 def test_fib_source(self):
3390 """ IP Table FibSource """
3392 routes = self.vapi.ip_route_v2_dump(0, True)
3394 # 2 interfaces (4 routes) + 2 specials + 4 neighbours = 10 routes
3395 self.assertEqual(len(routes), 10)
3397 # dump all the sources in the FIB
3398 sources = self.vapi.fib_source_dump()
3399 for source in sources:
3400 if (source.src.name == "API"):
3401 api_source = source.src
3402 if (source.src.name == "interface"):
3403 intf_source = source.src
3404 if (source.src.name == "adjacency"):
3405 adj_source = source.src
3406 if (source.src.name == "special"):
3407 special_source = source.src
3408 if (source.src.name == "default-route"):
3409 dr_source = source.src
3411 # dump the individual route types
3412 routes = self.vapi.ip_route_v2_dump(0, True, src=adj_source.id)
3413 self.assertEqual(len(routes), 4)
3414 routes = self.vapi.ip_route_v2_dump(0, True, src=intf_source.id)
3415 self.assertEqual(len(routes), 4)
3416 routes = self.vapi.ip_route_v2_dump(0, True, src=special_source.id)
3417 self.assertEqual(len(routes), 1)
3418 routes = self.vapi.ip_route_v2_dump(0, True, src=dr_source.id)
3419 self.assertEqual(len(routes), 1)
3421 # add a new soure that'a better than the API
3422 self.vapi.fib_source_add(src={'name': "bgp",
3423 "priority": api_source.priority - 1})
3425 # dump all the sources to check our new one is there
3426 sources = self.vapi.fib_source_dump()
3428 for source in sources:
3429 if (source.src.name == "bgp"):
3430 bgp_source = source.src
3432 self.assertTrue(bgp_source)
3433 self.assertEqual(bgp_source.priority,
3434 api_source.priority - 1)
3436 # add a route with the default API source
3438 self, "2001::1", 128,
3439 [VppRoutePath(self.pg0.remote_ip6,
3440 self.pg0.sw_if_index)]).add_vpp_config()
3442 r2 = VppIpRouteV2(self, "2001::1", 128,
3443 [VppRoutePath(self.pg1.remote_ip6,
3444 self.pg1.sw_if_index)],
3445 src=bgp_source.id).add_vpp_config()
3447 # ensure the BGP source takes priority
3448 p = (Ether(src=self.pg0.remote_mac,
3449 dst=self.pg0.local_mac) /
3450 IPv6(src=self.pg0.remote_ip6, dst="2001::1") /
3451 inet6.UDP(sport=1234, dport=1234) /
3454 self.send_and_expect(self.pg0, [p], self.pg1)
3456 r2.remove_vpp_config()
3457 r1.remove_vpp_config()
3459 self.assertFalse(find_route(self, "2001::1", 128))
3462 if __name__ == '__main__':
3463 unittest.main(testRunner=VppTestRunner)