8 from scapy.contrib.mpls import MPLS
9 from scapy.layers.inet import IP, UDP, TCP, ICMP, icmptypes, icmpcodes
10 from scapy.layers.l2 import Ether, Dot1Q, ARP
11 from scapy.packet import Raw
14 from framework import VppTestCase, VppTestRunner
16 from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpMRoute, \
17 VppMRoutePath, VppMplsIpBind, \
18 VppMplsTable, VppIpTable, FibPathType, find_route, \
19 VppIpInterfaceAddress, find_route_in_dump, find_mroute_in_dump
20 from vpp_ip import VppIpPuntPolicer, VppIpPuntRedirect
21 from vpp_sub_interface import VppSubInterface, VppDot1QSubint, VppDot1ADSubint
22 from vpp_papi import VppEnum
23 from vpp_neighbor import VppNeighbor
24 from vpp_lo_interface import VppLoInterface
25 from vpp_policer import VppPolicer
30 class TestIPv4(VppTestCase):
31 """ IPv4 Test Case """
35 super(TestIPv4, cls).setUpClass()
38 def tearDownClass(cls):
39 super(TestIPv4, cls).tearDownClass()
43 Perform test setup before test case.
46 - create 3 pg interfaces
47 - untagged pg0 interface
48 - Dot1Q subinterface on pg1
49 - Dot1AD subinterface on pg2
51 - put it into UP state
53 - resolve neighbor address using ARP
54 - configure 200 fib entries
56 :ivar list interfaces: pg interfaces and subinterfaces.
57 :ivar dict flows: IPv4 packet flows in test.
59 super(TestIPv4, self).setUp()
61 # create 3 pg interfaces
62 self.create_pg_interfaces(range(3))
64 # create 2 subinterfaces for pg1 and pg2
65 self.sub_interfaces = [
66 VppDot1QSubint(self, self.pg1, 100),
67 VppDot1ADSubint(self, self.pg2, 200, 300, 400)]
69 # packet flows mapping pg0 -> pg1.sub, pg2.sub, etc.
71 self.flows[self.pg0] = [self.pg1.sub_if, self.pg2.sub_if]
72 self.flows[self.pg1.sub_if] = [self.pg0, self.pg2.sub_if]
73 self.flows[self.pg2.sub_if] = [self.pg0, self.pg1.sub_if]
76 self.pg_if_packet_sizes = [64, 1500, 9020]
78 self.interfaces = list(self.pg_interfaces)
79 self.interfaces.extend(self.sub_interfaces)
81 # setup all interfaces
82 for i in self.interfaces:
87 # config 2M FIB entries
90 """Run standard test teardown and log ``show ip arp``."""
91 super(TestIPv4, self).tearDown()
93 def show_commands_at_teardown(self):
94 self.logger.info(self.vapi.cli("show ip4 neighbors"))
95 # info(self.vapi.cli("show ip fib")) # many entries
97 def modify_packet(self, src_if, packet_size, pkt):
98 """Add load, set destination IP and extend packet to required packet
99 size for defined interface.
101 :param VppInterface src_if: Interface to create packet for.
102 :param int packet_size: Required packet size.
103 :param Scapy pkt: Packet to be modified.
105 dst_if_idx = int(packet_size / 10 % 2)
106 dst_if = self.flows[src_if][dst_if_idx]
107 info = self.create_packet_info(src_if, dst_if)
108 payload = self.info_to_payload(info)
110 p[IP].dst = dst_if.remote_ip4
112 if isinstance(src_if, VppSubInterface):
113 p = src_if.add_dot1_layer(p)
114 self.extend_packet(p, packet_size)
118 def create_stream(self, src_if):
119 """Create input packet stream for defined interface.
121 :param VppInterface src_if: Interface to create packet stream for.
123 hdr_ext = 4 if isinstance(src_if, VppSubInterface) else 0
124 pkt_tmpl = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
125 IP(src=src_if.remote_ip4) /
126 UDP(sport=1234, dport=1234))
128 pkts = [self.modify_packet(src_if, i, pkt_tmpl)
129 for i in moves.range(self.pg_if_packet_sizes[0],
130 self.pg_if_packet_sizes[1], 10)]
131 pkts_b = [self.modify_packet(src_if, i, pkt_tmpl)
132 for i in moves.range(self.pg_if_packet_sizes[1] + hdr_ext,
133 self.pg_if_packet_sizes[2] + hdr_ext,
139 def verify_capture(self, dst_if, capture):
140 """Verify captured input packet stream for defined interface.
142 :param VppInterface dst_if: Interface to verify captured packet stream
144 :param list capture: Captured packet stream.
146 self.logger.info("Verifying capture on interface %s" % dst_if.name)
148 for i in self.interfaces:
149 last_info[i.sw_if_index] = None
151 dst_sw_if_index = dst_if.sw_if_index
152 if hasattr(dst_if, 'parent'):
154 for packet in capture:
156 # Check VLAN tags and Ethernet header
157 packet = dst_if.remove_dot1_layer(packet)
158 self.assertTrue(Dot1Q not in packet)
162 payload_info = self.payload_to_info(packet[Raw])
163 packet_index = payload_info.index
164 self.assertEqual(payload_info.dst, dst_sw_if_index)
166 "Got packet on port %s: src=%u (id=%u)" %
167 (dst_if.name, payload_info.src, packet_index))
168 next_info = self.get_next_packet_info_for_interface2(
169 payload_info.src, dst_sw_if_index,
170 last_info[payload_info.src])
171 last_info[payload_info.src] = next_info
172 self.assertTrue(next_info is not None)
173 self.assertEqual(packet_index, next_info.index)
174 saved_packet = next_info.data
175 # Check standard fields
176 self.assertEqual(ip.src, saved_packet[IP].src)
177 self.assertEqual(ip.dst, saved_packet[IP].dst)
178 self.assertEqual(udp.sport, saved_packet[UDP].sport)
179 self.assertEqual(udp.dport, saved_packet[UDP].dport)
181 self.logger.error(ppp("Unexpected or invalid packet:", packet))
183 for i in self.interfaces:
184 remaining_packet = self.get_next_packet_info_for_interface2(
185 i.sw_if_index, dst_sw_if_index, last_info[i.sw_if_index])
186 self.assertTrue(remaining_packet is None,
187 "Interface %s: Packet expected from interface %s "
188 "didn't arrive" % (dst_if.name, i.name))
195 - Create IPv4 stream for pg0 interface
196 - Create IPv4 tagged streams for pg1's and pg2's sub-interface.
197 - Send and verify received packets on each interface.
200 pkts = self.create_stream(self.pg0)
201 self.pg0.add_stream(pkts)
203 for i in self.sub_interfaces:
204 pkts = self.create_stream(i)
205 i.parent.add_stream(pkts)
207 self.pg_enable_capture(self.pg_interfaces)
210 pkts = self.pg0.get_capture()
211 self.verify_capture(self.pg0, pkts)
213 for i in self.sub_interfaces:
214 pkts = i.parent.get_capture()
215 self.verify_capture(i, pkts)
218 class TestIPv4RouteLookup(VppTestCase):
219 """ IPv4 Route Lookup Test Case """
222 def route_lookup(self, prefix, exact):
223 return self.vapi.api(self.vapi.papi.ip_route_lookup,
232 super(TestIPv4RouteLookup, cls).setUpClass()
235 def tearDownClass(cls):
236 super(TestIPv4RouteLookup, cls).tearDownClass()
239 super(TestIPv4RouteLookup, self).setUp()
241 drop_nh = VppRoutePath("127.0.0.1", 0xffffffff,
242 type=FibPathType.FIB_PATH_TYPE_DROP)
245 r = VppIpRoute(self, "1.1.0.0", 16, [drop_nh])
247 self.routes.append(r)
249 r = VppIpRoute(self, "1.1.1.0", 24, [drop_nh])
251 self.routes.append(r)
253 r = VppIpRoute(self, "1.1.1.1", 32, [drop_nh])
255 self.routes.append(r)
258 # Remove the routes we added
259 for r in self.routes:
260 r.remove_vpp_config()
262 super(TestIPv4RouteLookup, self).tearDown()
264 def test_exact_match(self):
265 # Verify we find the host route
266 prefix = "1.1.1.1/32"
267 result = self.route_lookup(prefix, True)
268 assert (prefix == str(result.route.prefix))
270 # Verify we find a middle prefix route
271 prefix = "1.1.1.0/24"
272 result = self.route_lookup(prefix, True)
273 assert (prefix == str(result.route.prefix))
275 # Verify we do not find an available LPM.
276 with self.vapi.assert_negative_api_retval():
277 self.route_lookup("1.1.1.2/32", True)
279 def test_longest_prefix_match(self):
281 lpm_prefix = "1.1.1.0/24"
282 result = self.route_lookup("1.1.1.2/32", False)
283 assert (lpm_prefix == str(result.route.prefix))
285 # Verify we find the exact when not requested
286 result = self.route_lookup(lpm_prefix, False)
287 assert (lpm_prefix == str(result.route.prefix))
289 # Can't seem to delete the default route so no negative LPM test.
292 class TestIPv4IfAddrRoute(VppTestCase):
293 """ IPv4 Interface Addr Route Test Case """
297 super(TestIPv4IfAddrRoute, cls).setUpClass()
300 def tearDownClass(cls):
301 super(TestIPv4IfAddrRoute, cls).tearDownClass()
304 super(TestIPv4IfAddrRoute, self).setUp()
306 # create 1 pg interface
307 self.create_pg_interfaces(range(1))
309 for i in self.pg_interfaces:
315 super(TestIPv4IfAddrRoute, self).tearDown()
316 for i in self.pg_interfaces:
320 def test_ipv4_ifaddrs_same_prefix(self):
321 """ IPv4 Interface Addresses Same Prefix test
325 - Verify no route in FIB for prefix 10.10.10.0/24
326 - Configure IPv4 address 10.10.10.10/24 on an interface
327 - Verify route in FIB for prefix 10.10.10.0/24
328 - Configure IPv4 address 10.10.10.20/24 on an interface
329 - Delete 10.10.10.10/24 from interface
330 - Verify route in FIB for prefix 10.10.10.0/24
331 - Delete 10.10.10.20/24 from interface
332 - Verify no route in FIB for prefix 10.10.10.0/24
335 # create two addresses, verify route not present
336 if_addr1 = VppIpInterfaceAddress(self, self.pg0, "10.10.10.10", 24)
337 if_addr2 = VppIpInterfaceAddress(self, self.pg0, "10.10.10.20", 24)
338 self.assertFalse(if_addr1.query_vpp_config()) # 10.10.10.10/24
339 self.assertFalse(find_route(self, "10.10.10.10", 32))
340 self.assertFalse(find_route(self, "10.10.10.20", 32))
341 self.assertFalse(find_route(self, "10.10.10.255", 32))
342 self.assertFalse(find_route(self, "10.10.10.0", 32))
344 # configure first address, verify route present
345 if_addr1.add_vpp_config()
346 self.assertTrue(if_addr1.query_vpp_config()) # 10.10.10.10/24
347 self.assertTrue(find_route(self, "10.10.10.10", 32))
348 self.assertFalse(find_route(self, "10.10.10.20", 32))
349 self.assertTrue(find_route(self, "10.10.10.255", 32))
350 self.assertTrue(find_route(self, "10.10.10.0", 32))
352 # configure second address, delete first, verify route not removed
353 if_addr2.add_vpp_config()
354 if_addr1.remove_vpp_config()
355 self.assertFalse(if_addr1.query_vpp_config()) # 10.10.10.10/24
356 self.assertTrue(if_addr2.query_vpp_config()) # 10.10.10.20/24
357 self.assertFalse(find_route(self, "10.10.10.10", 32))
358 self.assertTrue(find_route(self, "10.10.10.20", 32))
359 self.assertTrue(find_route(self, "10.10.10.255", 32))
360 self.assertTrue(find_route(self, "10.10.10.0", 32))
362 # delete second address, verify route removed
363 if_addr2.remove_vpp_config()
364 self.assertFalse(if_addr2.query_vpp_config()) # 10.10.10.20/24
365 self.assertFalse(find_route(self, "10.10.10.10", 32))
366 self.assertFalse(find_route(self, "10.10.10.20", 32))
367 self.assertFalse(find_route(self, "10.10.10.255", 32))
368 self.assertFalse(find_route(self, "10.10.10.0", 32))
370 def test_ipv4_ifaddr_route(self):
371 """ IPv4 Interface Address Route test
376 - Configure IPv4 address on loopback
377 - Verify that address is not in the FIB
379 - Verify that address is in the FIB now
380 - Bring loopback down
381 - Verify that address is not in the FIB anymore
383 - Configure IPv4 address on loopback
384 - Verify that address is in the FIB now
387 # create a loopback and configure IPv4
388 loopbacks = self.create_loopback_interfaces(1)
389 lo_if = self.lo_interfaces[0]
391 lo_if.local_ip4_prefix_len = 32
394 # The intf was down when addr was added -> entry not in FIB
395 fib4_dump = self.vapi.ip_route_dump(0)
396 self.assertFalse(lo_if.is_ip4_entry_in_fib_dump(fib4_dump))
398 # When intf is brought up, entry is added
400 fib4_dump = self.vapi.ip_route_dump(0)
401 self.assertTrue(lo_if.is_ip4_entry_in_fib_dump(fib4_dump))
403 # When intf is brought down, entry is removed
405 fib4_dump = self.vapi.ip_route_dump(0)
406 self.assertFalse(lo_if.is_ip4_entry_in_fib_dump(fib4_dump))
408 # Remove addr, bring up interface, re-add -> entry in FIB
412 fib4_dump = self.vapi.ip_route_dump(0)
413 self.assertTrue(lo_if.is_ip4_entry_in_fib_dump(fib4_dump))
415 def test_ipv4_ifaddr_del(self):
416 """ Delete an interface address that does not exist """
418 loopbacks = self.create_loopback_interfaces(1)
419 lo = self.lo_interfaces[0]
425 # try and remove pg0's subnet from lo
427 with self.vapi.assert_negative_api_retval():
428 self.vapi.sw_interface_add_del_address(
429 sw_if_index=lo.sw_if_index,
430 prefix=self.pg0.local_ip4_prefix,
434 class TestICMPEcho(VppTestCase):
435 """ ICMP Echo Test Case """
439 super(TestICMPEcho, cls).setUpClass()
442 def tearDownClass(cls):
443 super(TestICMPEcho, cls).tearDownClass()
446 super(TestICMPEcho, self).setUp()
448 # create 1 pg interface
449 self.create_pg_interfaces(range(1))
451 for i in self.pg_interfaces:
457 super(TestICMPEcho, self).tearDown()
458 for i in self.pg_interfaces:
462 def test_icmp_echo(self):
463 """ VPP replies to ICMP Echo Request
467 - Receive ICMP Echo Request message on pg0 interface.
468 - Check outgoing ICMP Echo Reply message on pg0 interface.
473 icmp_load = b'\x0a' * 18
474 p_echo_request = (Ether(src=self.pg0.remote_mac,
475 dst=self.pg0.local_mac) /
476 IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) /
477 ICMP(id=icmp_id, seq=icmp_seq) /
480 self.pg0.add_stream(p_echo_request)
481 self.pg_enable_capture(self.pg_interfaces)
484 rx = self.pg0.get_capture(1)
490 self.assertEqual(ether.src, self.pg0.local_mac)
491 self.assertEqual(ether.dst, self.pg0.remote_mac)
493 self.assertEqual(ipv4.src, self.pg0.local_ip4)
494 self.assertEqual(ipv4.dst, self.pg0.remote_ip4)
496 self.assertEqual(icmptypes[icmp.type], "echo-reply")
497 self.assertEqual(icmp.id, icmp_id)
498 self.assertEqual(icmp.seq, icmp_seq)
499 self.assertEqual(icmp[Raw].load, icmp_load)
502 class TestIPv4FibCrud(VppTestCase):
503 """ FIB - add/update/delete - ip4 routes
511 ..note:: Python API is too slow to add many routes, needs replacement.
514 def config_fib_many_to_one(self, start_dest_addr, next_hop_addr,
518 :param start_dest_addr:
519 :param next_hop_addr:
521 :return list: added ips with 32 prefix
524 for i in range(count):
525 r = VppIpRoute(self, start_dest_addr % (i + start), 32,
526 [VppRoutePath(next_hop_addr, 0xffffffff)])
531 def unconfig_fib_many_to_one(self, start_dest_addr, next_hop_addr,
535 for i in range(count):
536 r = VppIpRoute(self, start_dest_addr % (i + start), 32,
537 [VppRoutePath(next_hop_addr, 0xffffffff)])
538 r.remove_vpp_config()
542 def create_stream(self, src_if, dst_if, routes, count):
545 for _ in range(count):
546 dst_addr = random.choice(routes).prefix.network_address
547 info = self.create_packet_info(src_if, dst_if)
548 payload = self.info_to_payload(info)
549 p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
550 IP(src=src_if.remote_ip4, dst=str(dst_addr)) /
551 UDP(sport=1234, dport=1234) /
554 self.extend_packet(p, random.choice(self.pg_if_packet_sizes))
559 def _find_ip_match(self, find_in, pkt):
561 if self.payload_to_info(p[Raw]) == \
562 self.payload_to_info(pkt[Raw]):
563 if p[IP].src != pkt[IP].src:
565 if p[IP].dst != pkt[IP].dst:
567 if p[UDP].sport != pkt[UDP].sport:
569 if p[UDP].dport != pkt[UDP].dport:
574 def verify_capture(self, dst_interface, received_pkts, expected_pkts):
575 self.assertEqual(len(received_pkts), len(expected_pkts))
576 to_verify = list(expected_pkts)
577 for p in received_pkts:
578 self.assertEqual(p.src, dst_interface.local_mac)
579 self.assertEqual(p.dst, dst_interface.remote_mac)
580 x = self._find_ip_match(to_verify, p)
582 self.assertListEqual(to_verify, [])
584 def verify_route_dump(self, routes):
586 self.assertTrue(find_route(self,
587 r.prefix.network_address,
590 def verify_not_in_route_dump(self, routes):
592 self.assertFalse(find_route(self,
593 r.prefix.network_address,
599 #. Create and initialize 3 pg interfaces.
600 #. initialize class attributes configured_routes and deleted_routes
601 to store information between tests.
603 super(TestIPv4FibCrud, cls).setUpClass()
606 # create 3 pg interfaces
607 cls.create_pg_interfaces(range(3))
609 cls.interfaces = list(cls.pg_interfaces)
611 # setup all interfaces
612 for i in cls.interfaces:
617 cls.configured_routes = []
618 cls.deleted_routes = []
619 cls.pg_if_packet_sizes = [64, 512, 1518, 9018]
622 super(TestIPv4FibCrud, cls).tearDownClass()
626 def tearDownClass(cls):
627 super(TestIPv4FibCrud, cls).tearDownClass()
630 super(TestIPv4FibCrud, self).setUp()
631 self.reset_packet_infos()
633 self.configured_routes = []
634 self.deleted_routes = []
636 def test_1_add_routes(self):
637 """ Add 1k routes """
639 # add 100 routes check with traffic script.
640 self.configured_routes.extend(self.config_fib_many_to_one(
641 "10.0.0.%d", self.pg0.remote_ip4, 100))
643 self.verify_route_dump(self.configured_routes)
645 self.stream_1 = self.create_stream(
646 self.pg1, self.pg0, self.configured_routes, 100)
647 self.stream_2 = self.create_stream(
648 self.pg2, self.pg0, self.configured_routes, 100)
649 self.pg1.add_stream(self.stream_1)
650 self.pg2.add_stream(self.stream_2)
652 self.pg_enable_capture(self.pg_interfaces)
655 pkts = self.pg0.get_capture(len(self.stream_1) + len(self.stream_2))
656 self.verify_capture(self.pg0, pkts, self.stream_1 + self.stream_2)
658 def test_2_del_routes(self):
659 """ Delete 100 routes
661 - delete 10 routes check with traffic script.
663 # config 1M FIB entries
664 self.configured_routes.extend(self.config_fib_many_to_one(
665 "10.0.0.%d", self.pg0.remote_ip4, 100))
666 self.deleted_routes.extend(self.unconfig_fib_many_to_one(
667 "10.0.0.%d", self.pg0.remote_ip4, 10, start=10))
668 for x in self.deleted_routes:
669 self.configured_routes.remove(x)
671 self.verify_route_dump(self.configured_routes)
673 self.stream_1 = self.create_stream(
674 self.pg1, self.pg0, self.configured_routes, 100)
675 self.stream_2 = self.create_stream(
676 self.pg2, self.pg0, self.configured_routes, 100)
677 self.stream_3 = self.create_stream(
678 self.pg1, self.pg0, self.deleted_routes, 100)
679 self.stream_4 = self.create_stream(
680 self.pg2, self.pg0, self.deleted_routes, 100)
681 self.pg1.add_stream(self.stream_1 + self.stream_3)
682 self.pg2.add_stream(self.stream_2 + self.stream_4)
683 self.pg_enable_capture(self.pg_interfaces)
686 pkts = self.pg0.get_capture(len(self.stream_1) + len(self.stream_2))
687 self.verify_capture(self.pg0, pkts, self.stream_1 + self.stream_2)
689 def test_3_add_new_routes(self):
692 - re-add 5 routes check with traffic script.
693 - add 100 routes check with traffic script.
695 # config 1M FIB entries
696 self.configured_routes.extend(self.config_fib_many_to_one(
697 "10.0.0.%d", self.pg0.remote_ip4, 100))
698 self.deleted_routes.extend(self.unconfig_fib_many_to_one(
699 "10.0.0.%d", self.pg0.remote_ip4, 10, start=10))
700 for x in self.deleted_routes:
701 self.configured_routes.remove(x)
703 tmp = self.config_fib_many_to_one(
704 "10.0.0.%d", self.pg0.remote_ip4, 5, start=10)
705 self.configured_routes.extend(tmp)
707 self.deleted_routes.remove(x)
709 self.configured_routes.extend(self.config_fib_many_to_one(
710 "10.0.1.%d", self.pg0.remote_ip4, 100))
712 self.verify_route_dump(self.configured_routes)
714 self.stream_1 = self.create_stream(
715 self.pg1, self.pg0, self.configured_routes, 300)
716 self.stream_2 = self.create_stream(
717 self.pg2, self.pg0, self.configured_routes, 300)
718 self.stream_3 = self.create_stream(
719 self.pg1, self.pg0, self.deleted_routes, 100)
720 self.stream_4 = self.create_stream(
721 self.pg2, self.pg0, self.deleted_routes, 100)
723 self.pg1.add_stream(self.stream_1 + self.stream_3)
724 self.pg2.add_stream(self.stream_2 + self.stream_4)
725 self.pg_enable_capture(self.pg_interfaces)
728 pkts = self.pg0.get_capture(len(self.stream_1) + len(self.stream_2))
729 self.verify_capture(self.pg0, pkts, self.stream_1 + self.stream_2)
731 # delete 5 routes check with traffic script.
732 # add 100 routes check with traffic script.
733 self.deleted_routes.extend(self.unconfig_fib_many_to_one(
734 "10.0.0.%d", self.pg0.remote_ip4, 15))
735 self.deleted_routes.extend(self.unconfig_fib_many_to_one(
736 "10.0.0.%d", self.pg0.remote_ip4, 85))
737 self.deleted_routes.extend(self.unconfig_fib_many_to_one(
738 "10.0.1.%d", self.pg0.remote_ip4, 100))
739 self.verify_not_in_route_dump(self.deleted_routes)
742 class TestIPNull(VppTestCase):
743 """ IPv4 routes via NULL """
747 super(TestIPNull, cls).setUpClass()
750 def tearDownClass(cls):
751 super(TestIPNull, cls).tearDownClass()
754 super(TestIPNull, self).setUp()
756 # create 2 pg interfaces
757 self.create_pg_interfaces(range(2))
759 for i in self.pg_interfaces:
765 super(TestIPNull, self).tearDown()
766 for i in self.pg_interfaces:
770 def test_ip_null(self):
771 """ IP NULL route """
774 # A route via IP NULL that will reply with ICMP unreachables
776 ip_unreach = VppIpRoute(
777 self, "10.0.0.1", 32,
778 [VppRoutePath("0.0.0.0",
780 type=FibPathType.FIB_PATH_TYPE_ICMP_UNREACH)])
781 ip_unreach.add_vpp_config()
783 p_unreach = (Ether(src=self.pg0.remote_mac,
784 dst=self.pg0.local_mac) /
785 IP(src=self.pg0.remote_ip4, dst="10.0.0.1") /
786 UDP(sport=1234, dport=1234) /
788 self.pg0.add_stream(p_unreach)
789 self.pg_enable_capture(self.pg_interfaces)
792 rx = self.pg0.get_capture(1)
796 self.assertEqual(icmptypes[icmp.type], "dest-unreach")
797 self.assertEqual(icmpcodes[icmp.type][icmp.code], "host-unreachable")
798 self.assertEqual(icmp.src, self.pg0.remote_ip4)
799 self.assertEqual(icmp.dst, "10.0.0.1")
802 # ICMP replies are rate limited. so sit and spin.
807 # A route via IP NULL that will reply with ICMP prohibited
809 ip_prohibit = VppIpRoute(
810 self, "10.0.0.2", 32,
811 [VppRoutePath("0.0.0.0",
813 type=FibPathType.FIB_PATH_TYPE_ICMP_PROHIBIT)])
814 ip_prohibit.add_vpp_config()
816 p_prohibit = (Ether(src=self.pg0.remote_mac,
817 dst=self.pg0.local_mac) /
818 IP(src=self.pg0.remote_ip4, dst="10.0.0.2") /
819 UDP(sport=1234, dport=1234) /
822 self.pg0.add_stream(p_prohibit)
823 self.pg_enable_capture(self.pg_interfaces)
826 rx = self.pg0.get_capture(1)
831 self.assertEqual(icmptypes[icmp.type], "dest-unreach")
832 self.assertEqual(icmpcodes[icmp.type][icmp.code], "host-prohibited")
833 self.assertEqual(icmp.src, self.pg0.remote_ip4)
834 self.assertEqual(icmp.dst, "10.0.0.2")
836 def test_ip_drop(self):
837 """ IP Drop Routes """
839 p = (Ether(src=self.pg0.remote_mac,
840 dst=self.pg0.local_mac) /
841 IP(src=self.pg0.remote_ip4, dst="1.1.1.1") /
842 UDP(sport=1234, dport=1234) /
845 r1 = VppIpRoute(self, "1.1.1.0", 24,
846 [VppRoutePath(self.pg1.remote_ip4,
847 self.pg1.sw_if_index)])
850 rx = self.send_and_expect(self.pg0, p * NUM_PKTS, self.pg1)
853 # insert a more specific as a drop
855 r2 = VppIpRoute(self, "1.1.1.1", 32,
856 [VppRoutePath("0.0.0.0",
858 type=FibPathType.FIB_PATH_TYPE_DROP)])
861 self.send_and_assert_no_replies(self.pg0, p * NUM_PKTS, "Drop Route")
862 r2.remove_vpp_config()
863 rx = self.send_and_expect(self.pg0, p * NUM_PKTS, self.pg1)
866 class TestIPDisabled(VppTestCase):
867 """ IPv4 disabled """
871 super(TestIPDisabled, cls).setUpClass()
874 def tearDownClass(cls):
875 super(TestIPDisabled, cls).tearDownClass()
878 super(TestIPDisabled, self).setUp()
880 # create 2 pg interfaces
881 self.create_pg_interfaces(range(2))
885 self.pg0.config_ip4()
886 self.pg0.resolve_arp()
888 # PG 1 is not IP enabled
892 super(TestIPDisabled, self).tearDown()
893 for i in self.pg_interfaces:
897 def test_ip_disabled(self):
900 MRouteItfFlags = VppEnum.vl_api_mfib_itf_flags_t
901 MRouteEntryFlags = VppEnum.vl_api_mfib_entry_flags_t
905 # one accepting interface, pg0, 2 forwarding interfaces
907 route_232_1_1_1 = VppIpMRoute(
911 MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
912 [VppMRoutePath(self.pg1.sw_if_index,
913 MRouteItfFlags.MFIB_API_ITF_FLAG_ACCEPT),
914 VppMRoutePath(self.pg0.sw_if_index,
915 MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD)])
916 route_232_1_1_1.add_vpp_config()
918 pu = (Ether(src=self.pg1.remote_mac,
919 dst=self.pg1.local_mac) /
920 IP(src="10.10.10.10", dst=self.pg0.remote_ip4) /
921 UDP(sport=1234, dport=1234) /
923 pm = (Ether(src=self.pg1.remote_mac,
924 dst=self.pg1.local_mac) /
925 IP(src="10.10.10.10", dst="232.1.1.1") /
926 UDP(sport=1234, dport=1234) /
930 # PG1 does not forward IP traffic
932 self.send_and_assert_no_replies(self.pg1, pu, "IP disabled")
933 self.send_and_assert_no_replies(self.pg1, pm, "IP disabled")
938 self.pg1.config_ip4()
941 # Now we get packets through
943 self.pg1.add_stream(pu)
944 self.pg_enable_capture(self.pg_interfaces)
946 rx = self.pg0.get_capture(1)
948 self.pg1.add_stream(pm)
949 self.pg_enable_capture(self.pg_interfaces)
951 rx = self.pg0.get_capture(1)
956 self.pg1.unconfig_ip4()
959 # PG1 does not forward IP traffic
961 self.send_and_assert_no_replies(self.pg1, pu, "IP disabled")
962 self.send_and_assert_no_replies(self.pg1, pm, "IP disabled")
965 class TestIPSubNets(VppTestCase):
970 super(TestIPSubNets, cls).setUpClass()
973 def tearDownClass(cls):
974 super(TestIPSubNets, cls).tearDownClass()
977 super(TestIPSubNets, self).setUp()
979 # create a 2 pg interfaces
980 self.create_pg_interfaces(range(2))
982 # pg0 we will use to experiment
985 # pg1 is setup normally
987 self.pg1.config_ip4()
988 self.pg1.resolve_arp()
991 super(TestIPSubNets, self).tearDown()
992 for i in self.pg_interfaces:
995 def test_ip_sub_nets(self):
999 # Configure a covering route to forward so we know
1000 # when we are dropping
1002 cover_route = VppIpRoute(self, "10.0.0.0", 8,
1003 [VppRoutePath(self.pg1.remote_ip4,
1004 self.pg1.sw_if_index)])
1005 cover_route.add_vpp_config()
1007 p = (Ether(src=self.pg1.remote_mac,
1008 dst=self.pg1.local_mac) /
1009 IP(dst="10.10.10.10", src=self.pg0.local_ip4) /
1010 UDP(sport=1234, dport=1234) /
1013 self.pg1.add_stream(p)
1014 self.pg_enable_capture(self.pg_interfaces)
1016 rx = self.pg1.get_capture(1)
1019 # Configure some non-/24 subnets on an IP interface
1021 ip_addr_n = socket.inet_pton(socket.AF_INET, "10.10.10.10")
1023 self.vapi.sw_interface_add_del_address(
1024 sw_if_index=self.pg0.sw_if_index,
1025 prefix="10.10.10.10/16")
1027 pn = (Ether(src=self.pg1.remote_mac,
1028 dst=self.pg1.local_mac) /
1029 IP(dst="10.10.0.0", src=self.pg0.local_ip4) /
1030 UDP(sport=1234, dport=1234) /
1032 pb = (Ether(src=self.pg1.remote_mac,
1033 dst=self.pg1.local_mac) /
1034 IP(dst="10.10.255.255", src=self.pg0.local_ip4) /
1035 UDP(sport=1234, dport=1234) /
1038 self.send_and_assert_no_replies(self.pg1, pn, "IP Network address")
1039 self.send_and_assert_no_replies(self.pg1, pb, "IP Broadcast address")
1041 # remove the sub-net and we are forwarding via the cover again
1042 self.vapi.sw_interface_add_del_address(
1043 sw_if_index=self.pg0.sw_if_index,
1044 prefix="10.10.10.10/16",
1047 self.pg1.add_stream(pn)
1048 self.pg_enable_capture(self.pg_interfaces)
1050 rx = self.pg1.get_capture(1)
1051 self.pg1.add_stream(pb)
1052 self.pg_enable_capture(self.pg_interfaces)
1054 rx = self.pg1.get_capture(1)
1057 # A /31 is a special case where the 'other-side' is an attached host
1058 # packets to that peer generate ARP requests
1060 ip_addr_n = socket.inet_pton(socket.AF_INET, "10.10.10.10")
1062 self.vapi.sw_interface_add_del_address(
1063 sw_if_index=self.pg0.sw_if_index,
1064 prefix="10.10.10.10/31")
1066 pn = (Ether(src=self.pg1.remote_mac,
1067 dst=self.pg1.local_mac) /
1068 IP(dst="10.10.10.11", src=self.pg0.local_ip4) /
1069 UDP(sport=1234, dport=1234) /
1072 self.pg1.add_stream(pn)
1073 self.pg_enable_capture(self.pg_interfaces)
1075 rx = self.pg0.get_capture(1)
1078 # remove the sub-net and we are forwarding via the cover again
1079 self.vapi.sw_interface_add_del_address(
1080 sw_if_index=self.pg0.sw_if_index,
1081 prefix="10.10.10.10/31", is_add=0)
1083 self.pg1.add_stream(pn)
1084 self.pg_enable_capture(self.pg_interfaces)
1086 rx = self.pg1.get_capture(1)
1089 class TestIPLoadBalance(VppTestCase):
1090 """ IPv4 Load-Balancing """
1093 def setUpClass(cls):
1094 super(TestIPLoadBalance, cls).setUpClass()
1097 def tearDownClass(cls):
1098 super(TestIPLoadBalance, cls).tearDownClass()
1101 super(TestIPLoadBalance, self).setUp()
1103 self.create_pg_interfaces(range(5))
1104 mpls_tbl = VppMplsTable(self, 0)
1105 mpls_tbl.add_vpp_config()
1107 for i in self.pg_interfaces:
1114 for i in self.pg_interfaces:
1118 super(TestIPLoadBalance, self).tearDown()
1120 def send_and_expect_load_balancing(self, input, pkts, outputs):
1121 input.add_stream(pkts)
1122 self.pg_enable_capture(self.pg_interfaces)
1126 rx = oo._get_capture(1)
1127 self.assertNotEqual(0, len(rx))
1132 def send_and_expect_one_itf(self, input, pkts, itf):
1133 input.add_stream(pkts)
1134 self.pg_enable_capture(self.pg_interfaces)
1136 rx = itf.get_capture(len(pkts))
1138 def test_ip_load_balance(self):
1139 """ IP Load-Balancing """
1141 fhc = VppEnum.vl_api_ip_flow_hash_config_t
1142 af = VppEnum.vl_api_address_family_t
1145 # An array of packets that differ only in the destination port
1151 # An array of packets that differ only in the source address
1156 for ii in range(NUM_PKTS):
1157 port_ip_hdr = (IP(dst="10.0.0.1", src="20.0.0.1") /
1158 UDP(sport=1234, dport=1234 + ii) /
1160 port_ip_pkts.append((Ether(src=self.pg0.remote_mac,
1161 dst=self.pg0.local_mac) /
1163 port_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
1164 dst=self.pg0.local_mac) /
1165 MPLS(label=66, ttl=2) /
1168 src_ip_hdr = (IP(dst="10.0.0.1", src="20.0.0.%d" % ii) /
1169 UDP(sport=1234, dport=1234) /
1171 src_ip_pkts.append((Ether(src=self.pg0.remote_mac,
1172 dst=self.pg0.local_mac) /
1174 src_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
1175 dst=self.pg0.local_mac) /
1176 MPLS(label=66, ttl=2) /
1179 route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32,
1180 [VppRoutePath(self.pg1.remote_ip4,
1181 self.pg1.sw_if_index),
1182 VppRoutePath(self.pg2.remote_ip4,
1183 self.pg2.sw_if_index)])
1184 route_10_0_0_1.add_vpp_config()
1186 binding = VppMplsIpBind(self, 66, "10.0.0.1", 32)
1187 binding.add_vpp_config()
1190 # inject the packet on pg0 - expect load-balancing across the 2 paths
1191 # - since the default hash config is to use IP src,dst and port
1193 # We are not going to ensure equal amounts of packets across each link,
1194 # since the hash algorithm is statistical and therefore this can never
1195 # be guaranteed. But with 64 different packets we do expect some
1196 # balancing. So instead just ensure there is traffic on each link.
1198 self.send_and_expect_load_balancing(self.pg0, port_ip_pkts,
1199 [self.pg1, self.pg2])
1200 self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
1201 [self.pg1, self.pg2])
1202 self.send_and_expect_load_balancing(self.pg0, port_mpls_pkts,
1203 [self.pg1, self.pg2])
1204 self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
1205 [self.pg1, self.pg2])
1208 # change the flow hash config so it's only IP src,dst
1209 # - now only the stream with differing source address will
1212 self.vapi.set_ip_flow_hash_v2(
1215 flow_hash_config=(fhc.IP_API_FLOW_HASH_SRC_IP |
1216 fhc.IP_API_FLOW_HASH_DST_IP |
1217 fhc.IP_API_FLOW_HASH_PROTO))
1219 self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
1220 [self.pg1, self.pg2])
1221 self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
1222 [self.pg1, self.pg2])
1224 self.send_and_expect_one_itf(self.pg0, port_ip_pkts, self.pg2)
1227 # change the flow hash config back to defaults
1229 self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1,
1230 proto=1, sport=1, dport=1)
1233 # Recursive prefixes
1234 # - testing that 2 stages of load-balancing occurs and there is no
1235 # polarisation (i.e. only 2 of 4 paths are used)
1240 for ii in range(257):
1241 port_pkts.append((Ether(src=self.pg0.remote_mac,
1242 dst=self.pg0.local_mac) /
1243 IP(dst="1.1.1.1", src="20.0.0.1") /
1244 UDP(sport=1234, dport=1234 + ii) /
1245 Raw(b'\xa5' * 100)))
1246 src_pkts.append((Ether(src=self.pg0.remote_mac,
1247 dst=self.pg0.local_mac) /
1248 IP(dst="1.1.1.1", src="20.0.0.%d" % ii) /
1249 UDP(sport=1234, dport=1234) /
1250 Raw(b'\xa5' * 100)))
1252 route_10_0_0_2 = VppIpRoute(self, "10.0.0.2", 32,
1253 [VppRoutePath(self.pg3.remote_ip4,
1254 self.pg3.sw_if_index),
1255 VppRoutePath(self.pg4.remote_ip4,
1256 self.pg4.sw_if_index)])
1257 route_10_0_0_2.add_vpp_config()
1259 route_1_1_1_1 = VppIpRoute(self, "1.1.1.1", 32,
1260 [VppRoutePath("10.0.0.2", 0xffffffff),
1261 VppRoutePath("10.0.0.1", 0xffffffff)])
1262 route_1_1_1_1.add_vpp_config()
1265 # inject the packet on pg0 - expect load-balancing across all 4 paths
1267 self.vapi.cli("clear trace")
1268 self.send_and_expect_load_balancing(self.pg0, port_pkts,
1269 [self.pg1, self.pg2,
1270 self.pg3, self.pg4])
1271 self.send_and_expect_load_balancing(self.pg0, src_pkts,
1272 [self.pg1, self.pg2,
1273 self.pg3, self.pg4])
1276 # bring down pg1 expect LB to adjust to use only those that are pu
1278 self.pg1.link_down()
1280 rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
1281 [self.pg2, self.pg3,
1283 self.assertEqual(len(src_pkts), len(rx))
1286 # bring down pg2 expect LB to adjust to use only those that are pu
1288 self.pg2.link_down()
1290 rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
1291 [self.pg3, self.pg4])
1292 self.assertEqual(len(src_pkts), len(rx))
1295 # bring the links back up - expect LB over all again
1300 rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
1301 [self.pg1, self.pg2,
1302 self.pg3, self.pg4])
1303 self.assertEqual(len(src_pkts), len(rx))
1306 # The same link-up/down but this time admin state
1308 self.pg1.admin_down()
1309 self.pg2.admin_down()
1310 rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
1311 [self.pg3, self.pg4])
1312 self.assertEqual(len(src_pkts), len(rx))
1315 self.pg1.resolve_arp()
1316 self.pg2.resolve_arp()
1317 rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
1318 [self.pg1, self.pg2,
1319 self.pg3, self.pg4])
1320 self.assertEqual(len(src_pkts), len(rx))
1323 # Recursive prefixes
1324 # - testing that 2 stages of load-balancing, no choices
1328 for ii in range(257):
1329 port_pkts.append((Ether(src=self.pg0.remote_mac,
1330 dst=self.pg0.local_mac) /
1331 IP(dst="1.1.1.2", src="20.0.0.2") /
1332 UDP(sport=1234, dport=1234 + ii) /
1333 Raw(b'\xa5' * 100)))
1335 route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32,
1336 [VppRoutePath(self.pg3.remote_ip4,
1337 self.pg3.sw_if_index)])
1338 route_10_0_0_3.add_vpp_config()
1340 route_1_1_1_2 = VppIpRoute(self, "1.1.1.2", 32,
1341 [VppRoutePath("10.0.0.3", 0xffffffff)])
1342 route_1_1_1_2.add_vpp_config()
1345 # inject the packet on pg0 - rx only on via routes output interface
1347 self.vapi.cli("clear trace")
1348 self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg3)
1351 # Add a LB route in the presence of a down link - expect no
1352 # packets over the down link
1354 self.pg3.link_down()
1356 route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32,
1357 [VppRoutePath(self.pg3.remote_ip4,
1358 self.pg3.sw_if_index),
1359 VppRoutePath(self.pg4.remote_ip4,
1360 self.pg4.sw_if_index)])
1361 route_10_0_0_3.add_vpp_config()
1364 for ii in range(257):
1365 port_pkts.append(Ether(src=self.pg0.remote_mac,
1366 dst=self.pg0.local_mac) /
1367 IP(dst="10.0.0.3", src="20.0.0.2") /
1368 UDP(sport=1234, dport=1234 + ii) /
1371 self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg4)
1373 # bring the link back up
1376 rx = self.send_and_expect_load_balancing(self.pg0, port_pkts,
1377 [self.pg3, self.pg4])
1378 self.assertEqual(len(src_pkts), len(rx))
1381 class TestIPVlan0(VppTestCase):
1385 def setUpClass(cls):
1386 super(TestIPVlan0, cls).setUpClass()
1389 def tearDownClass(cls):
1390 super(TestIPVlan0, cls).tearDownClass()
1393 super(TestIPVlan0, self).setUp()
1395 self.create_pg_interfaces(range(2))
1396 mpls_tbl = VppMplsTable(self, 0)
1397 mpls_tbl.add_vpp_config()
1399 for i in self.pg_interfaces:
1406 for i in self.pg_interfaces:
1410 super(TestIPVlan0, self).tearDown()
1412 def test_ip_vlan_0(self):
1415 pkts = (Ether(src=self.pg0.remote_mac,
1416 dst=self.pg0.local_mac) /
1418 IP(dst=self.pg1.remote_ip4,
1419 src=self.pg0.remote_ip4) /
1420 UDP(sport=1234, dport=1234) /
1421 Raw(b'\xa5' * 100)) * NUM_PKTS
1424 # Expect that packets sent on VLAN-0 are forwarded on the
1427 self.send_and_expect(self.pg0, pkts, self.pg1)
1430 class TestIPPunt(VppTestCase):
1431 """ IPv4 Punt Police/Redirect """
1434 def setUpClass(cls):
1435 super(TestIPPunt, cls).setUpClass()
1438 def tearDownClass(cls):
1439 super(TestIPPunt, cls).tearDownClass()
1442 super(TestIPPunt, self).setUp()
1444 self.create_pg_interfaces(range(4))
1446 for i in self.pg_interfaces:
1452 super(TestIPPunt, self).tearDown()
1453 for i in self.pg_interfaces:
1457 def test_ip_punt(self):
1458 """ IP punt police and redirect """
1460 # use UDP packet that have a port we need to explicitly
1461 # register to get punted.
1462 pt_l4 = VppEnum.vl_api_punt_type_t.PUNT_API_TYPE_L4
1463 af_ip4 = VppEnum.vl_api_address_family_t.ADDRESS_IP4
1464 udp_proto = VppEnum.vl_api_ip_proto_t.IP_API_PROTO_UDP
1470 'protocol': udp_proto,
1476 self.vapi.set_punt(is_add=1, punt=punt_udp)
1478 p = (Ether(src=self.pg0.remote_mac,
1479 dst=self.pg0.local_mac) /
1480 IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) /
1481 UDP(sport=1234, dport=1234) /
1487 # Configure a punt redirect via pg1.
1489 nh_addr = self.pg1.remote_ip4
1490 ip_punt_redirect = VppIpPuntRedirect(self, self.pg0.sw_if_index,
1491 self.pg1.sw_if_index, nh_addr)
1492 ip_punt_redirect.add_vpp_config()
1494 self.send_and_expect(self.pg0, pkts, self.pg1)
1499 policer = VppPolicer(self, "ip4-punt", 400, 0, 10, 0, rate_type=1)
1500 policer.add_vpp_config()
1501 ip_punt_policer = VppIpPuntPolicer(self, policer.policer_index)
1502 ip_punt_policer.add_vpp_config()
1504 self.vapi.cli("clear trace")
1505 self.pg0.add_stream(pkts)
1506 self.pg_enable_capture(self.pg_interfaces)
1510 # the number of packet received should be greater than 0,
1511 # but not equal to the number sent, since some were policed
1513 rx = self.pg1._get_capture(1)
1514 self.assertGreater(len(rx), 0)
1515 self.assertLess(len(rx), len(pkts))
1518 # remove the policer. back to full rx
1520 ip_punt_policer.remove_vpp_config()
1521 policer.remove_vpp_config()
1522 self.send_and_expect(self.pg0, pkts, self.pg1)
1525 # remove the redirect. expect full drop.
1527 ip_punt_redirect.remove_vpp_config()
1528 self.send_and_assert_no_replies(self.pg0, pkts,
1529 "IP no punt config")
1532 # Add a redirect that is not input port selective
1534 ip_punt_redirect = VppIpPuntRedirect(self, 0xffffffff,
1535 self.pg1.sw_if_index, nh_addr)
1536 ip_punt_redirect.add_vpp_config()
1537 self.send_and_expect(self.pg0, pkts, self.pg1)
1538 ip_punt_redirect.remove_vpp_config()
1540 def test_ip_punt_dump(self):
1541 """ IP4 punt redirect dump"""
1544 # Configure a punt redirects
1546 nh_address = self.pg3.remote_ip4
1547 ipr_03 = VppIpPuntRedirect(self, self.pg0.sw_if_index,
1548 self.pg3.sw_if_index, nh_address)
1549 ipr_13 = VppIpPuntRedirect(self, self.pg1.sw_if_index,
1550 self.pg3.sw_if_index, nh_address)
1551 ipr_23 = VppIpPuntRedirect(self, self.pg2.sw_if_index,
1552 self.pg3.sw_if_index, "0.0.0.0")
1553 ipr_03.add_vpp_config()
1554 ipr_13.add_vpp_config()
1555 ipr_23.add_vpp_config()
1558 # Dump pg0 punt redirects
1560 self.assertTrue(ipr_03.query_vpp_config())
1561 self.assertTrue(ipr_13.query_vpp_config())
1562 self.assertTrue(ipr_23.query_vpp_config())
1565 # Dump punt redirects for all interfaces
1567 punts = self.vapi.ip_punt_redirect_dump(0xffffffff)
1568 self.assertEqual(len(punts), 3)
1570 self.assertEqual(p.punt.tx_sw_if_index, self.pg3.sw_if_index)
1571 self.assertNotEqual(punts[1].punt.nh, self.pg3.remote_ip4)
1572 self.assertEqual(str(punts[2].punt.nh), '0.0.0.0')
1575 class TestIPDeag(VppTestCase):
1576 """ IPv4 Deaggregate Routes """
1579 def setUpClass(cls):
1580 super(TestIPDeag, cls).setUpClass()
1583 def tearDownClass(cls):
1584 super(TestIPDeag, cls).tearDownClass()
1587 super(TestIPDeag, self).setUp()
1589 self.create_pg_interfaces(range(3))
1591 for i in self.pg_interfaces:
1597 super(TestIPDeag, self).tearDown()
1598 for i in self.pg_interfaces:
1602 def test_ip_deag(self):
1603 """ IP Deag Routes """
1606 # Create a table to be used for:
1607 # 1 - another destination address lookup
1608 # 2 - a source address lookup
1610 table_dst = VppIpTable(self, 1)
1611 table_src = VppIpTable(self, 2)
1612 table_dst.add_vpp_config()
1613 table_src.add_vpp_config()
1616 # Add a route in the default table to point to a deag/
1617 # second lookup in each of these tables
1619 route_to_dst = VppIpRoute(self, "1.1.1.1", 32,
1620 [VppRoutePath("0.0.0.0",
1623 route_to_src = VppIpRoute(
1624 self, "1.1.1.2", 32,
1625 [VppRoutePath("0.0.0.0",
1628 type=FibPathType.FIB_PATH_TYPE_SOURCE_LOOKUP)])
1629 route_to_dst.add_vpp_config()
1630 route_to_src.add_vpp_config()
1633 # packets to these destination are dropped, since they'll
1634 # hit the respective default routes in the second table
1636 p_dst = (Ether(src=self.pg0.remote_mac,
1637 dst=self.pg0.local_mac) /
1638 IP(src="5.5.5.5", dst="1.1.1.1") /
1639 TCP(sport=1234, dport=1234) /
1641 p_src = (Ether(src=self.pg0.remote_mac,
1642 dst=self.pg0.local_mac) /
1643 IP(src="2.2.2.2", dst="1.1.1.2") /
1644 TCP(sport=1234, dport=1234) /
1646 pkts_dst = p_dst * 257
1647 pkts_src = p_src * 257
1649 self.send_and_assert_no_replies(self.pg0, pkts_dst,
1651 self.send_and_assert_no_replies(self.pg0, pkts_src,
1655 # add a route in the dst table to forward via pg1
1657 route_in_dst = VppIpRoute(self, "1.1.1.1", 32,
1658 [VppRoutePath(self.pg1.remote_ip4,
1659 self.pg1.sw_if_index)],
1661 route_in_dst.add_vpp_config()
1663 self.send_and_expect(self.pg0, pkts_dst, self.pg1)
1666 # add a route in the src table to forward via pg2
1668 route_in_src = VppIpRoute(self, "2.2.2.2", 32,
1669 [VppRoutePath(self.pg2.remote_ip4,
1670 self.pg2.sw_if_index)],
1672 route_in_src.add_vpp_config()
1673 self.send_and_expect(self.pg0, pkts_src, self.pg2)
1676 # loop in the lookup DP
1678 route_loop = VppIpRoute(self, "2.2.2.3", 32,
1679 [VppRoutePath("0.0.0.0",
1682 route_loop.add_vpp_config()
1684 p_l = (Ether(src=self.pg0.remote_mac,
1685 dst=self.pg0.local_mac) /
1686 IP(src="2.2.2.4", dst="2.2.2.3") /
1687 TCP(sport=1234, dport=1234) /
1690 self.send_and_assert_no_replies(self.pg0, p_l * 257,
1694 class TestIPInput(VppTestCase):
1695 """ IPv4 Input Exceptions """
1698 def setUpClass(cls):
1699 super(TestIPInput, cls).setUpClass()
1702 def tearDownClass(cls):
1703 super(TestIPInput, cls).tearDownClass()
1706 super(TestIPInput, self).setUp()
1708 self.create_pg_interfaces(range(2))
1710 for i in self.pg_interfaces:
1716 super(TestIPInput, self).tearDown()
1717 for i in self.pg_interfaces:
1721 def test_ip_input(self):
1722 """ IP Input Exceptions """
1724 # i can't find a way in scapy to construct an IP packet
1725 # with a length less than the IP header length
1728 # Packet too short - this is forwarded
1730 p_short = (Ether(src=self.pg0.remote_mac,
1731 dst=self.pg0.local_mac) /
1732 IP(src=self.pg0.remote_ip4,
1733 dst=self.pg1.remote_ip4,
1735 UDP(sport=1234, dport=1234) /
1738 rx = self.send_and_expect(self.pg0, p_short * NUM_PKTS, self.pg1)
1741 # Packet too long - this is dropped
1743 p_long = (Ether(src=self.pg0.remote_mac,
1744 dst=self.pg0.local_mac) /
1745 IP(src=self.pg0.remote_ip4,
1746 dst=self.pg1.remote_ip4,
1748 UDP(sport=1234, dport=1234) /
1751 rx = self.send_and_assert_no_replies(self.pg0, p_long * NUM_PKTS,
1755 # bad chksum - this is dropped
1757 p_chksum = (Ether(src=self.pg0.remote_mac,
1758 dst=self.pg0.local_mac) /
1759 IP(src=self.pg0.remote_ip4,
1760 dst=self.pg1.remote_ip4,
1762 UDP(sport=1234, dport=1234) /
1765 rx = self.send_and_assert_no_replies(self.pg0, p_chksum * NUM_PKTS,
1769 # bad version - this is dropped
1771 p_ver = (Ether(src=self.pg0.remote_mac,
1772 dst=self.pg0.local_mac) /
1773 IP(src=self.pg0.remote_ip4,
1774 dst=self.pg1.remote_ip4,
1776 UDP(sport=1234, dport=1234) /
1779 rx = self.send_and_assert_no_replies(self.pg0, p_ver * NUM_PKTS,
1783 # fragment offset 1 - this is dropped
1785 p_frag = (Ether(src=self.pg0.remote_mac,
1786 dst=self.pg0.local_mac) /
1787 IP(src=self.pg0.remote_ip4,
1788 dst=self.pg1.remote_ip4,
1790 UDP(sport=1234, dport=1234) /
1793 rx = self.send_and_assert_no_replies(self.pg0, p_frag * NUM_PKTS,
1797 # TTL expired packet
1799 p_ttl = (Ether(src=self.pg0.remote_mac,
1800 dst=self.pg0.local_mac) /
1801 IP(src=self.pg0.remote_ip4,
1802 dst=self.pg1.remote_ip4,
1804 UDP(sport=1234, dport=1234) /
1807 rx = self.send_and_expect(self.pg0, p_ttl * NUM_PKTS, self.pg0)
1812 self.assertEqual(icmptypes[icmp.type], "time-exceeded")
1813 self.assertEqual(icmpcodes[icmp.type][icmp.code],
1814 "ttl-zero-during-transit")
1815 self.assertEqual(icmp.src, self.pg0.remote_ip4)
1816 self.assertEqual(icmp.dst, self.pg1.remote_ip4)
1821 p_mtu = (Ether(src=self.pg0.remote_mac,
1822 dst=self.pg0.local_mac) /
1823 IP(src=self.pg0.remote_ip4,
1824 dst=self.pg1.remote_ip4,
1825 ttl=10, flags='DF') /
1826 UDP(sport=1234, dport=1234) /
1827 Raw(b'\xa5' * 2000))
1829 self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [1500, 0, 0, 0])
1831 rx = self.send_and_expect(self.pg0, p_mtu * NUM_PKTS, self.pg0)
1835 self.assertEqual(icmptypes[icmp.type], "dest-unreach")
1836 self.assertEqual(icmpcodes[icmp.type][icmp.code],
1837 "fragmentation-needed")
1838 self.assertEqual(icmp.src, self.pg0.remote_ip4)
1839 self.assertEqual(icmp.dst, self.pg1.remote_ip4)
1841 self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [2500, 0, 0, 0])
1842 rx = self.send_and_expect(self.pg0, p_mtu * NUM_PKTS, self.pg1)
1844 # Reset MTU for subsequent tests
1845 self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [9000, 0, 0, 0])
1848 # source address 0.0.0.0 and 25.255.255.255 and for-us
1850 p_s0 = (Ether(src=self.pg0.remote_mac,
1851 dst=self.pg0.local_mac) /
1853 dst=self.pg0.local_ip4) /
1855 Raw(load=b'\x0a' * 18))
1856 rx = self.send_and_assert_no_replies(self.pg0, p_s0 * 17)
1858 p_s0 = (Ether(src=self.pg0.remote_mac,
1859 dst=self.pg0.local_mac) /
1860 IP(src="255.255.255.255",
1861 dst=self.pg0.local_ip4) /
1863 Raw(load=b'\x0a' * 18))
1864 rx = self.send_and_assert_no_replies(self.pg0, p_s0 * 17)
1867 class TestIPDirectedBroadcast(VppTestCase):
1868 """ IPv4 Directed Broadcast """
1871 def setUpClass(cls):
1872 super(TestIPDirectedBroadcast, cls).setUpClass()
1875 def tearDownClass(cls):
1876 super(TestIPDirectedBroadcast, cls).tearDownClass()
1879 super(TestIPDirectedBroadcast, self).setUp()
1881 self.create_pg_interfaces(range(2))
1883 for i in self.pg_interfaces:
1887 super(TestIPDirectedBroadcast, self).tearDown()
1888 for i in self.pg_interfaces:
1891 def test_ip_input(self):
1892 """ IP Directed Broadcast """
1895 # set the directed broadcast on pg0 first, then config IP4 addresses
1896 # for pg1 directed broadcast is always disabled
1897 self.vapi.sw_interface_set_ip_directed_broadcast(
1898 self.pg0.sw_if_index, 1)
1900 p0 = (Ether(src=self.pg1.remote_mac,
1901 dst=self.pg1.local_mac) /
1903 dst=self.pg0._local_ip4_bcast) /
1904 UDP(sport=1234, dport=1234) /
1905 Raw(b'\xa5' * 2000))
1906 p1 = (Ether(src=self.pg0.remote_mac,
1907 dst=self.pg0.local_mac) /
1909 dst=self.pg1._local_ip4_bcast) /
1910 UDP(sport=1234, dport=1234) /
1911 Raw(b'\xa5' * 2000))
1913 self.pg0.config_ip4()
1914 self.pg0.resolve_arp()
1915 self.pg1.config_ip4()
1916 self.pg1.resolve_arp()
1919 # test packet is L2 broadcast
1921 rx = self.send_and_expect(self.pg1, p0 * NUM_PKTS, self.pg0)
1922 self.assertTrue(rx[0][Ether].dst, "ff:ff:ff:ff:ff:ff")
1924 self.send_and_assert_no_replies(self.pg0, p1 * NUM_PKTS,
1925 "directed broadcast disabled")
1928 # toggle directed broadcast on pg0
1930 self.vapi.sw_interface_set_ip_directed_broadcast(
1931 self.pg0.sw_if_index, 0)
1932 self.send_and_assert_no_replies(self.pg1, p0 * NUM_PKTS,
1933 "directed broadcast disabled")
1935 self.vapi.sw_interface_set_ip_directed_broadcast(
1936 self.pg0.sw_if_index, 1)
1937 rx = self.send_and_expect(self.pg1, p0 * NUM_PKTS, self.pg0)
1939 self.pg0.unconfig_ip4()
1940 self.pg1.unconfig_ip4()
1943 class TestIPLPM(VppTestCase):
1944 """ IPv4 longest Prefix Match """
1947 def setUpClass(cls):
1948 super(TestIPLPM, cls).setUpClass()
1951 def tearDownClass(cls):
1952 super(TestIPLPM, cls).tearDownClass()
1955 super(TestIPLPM, self).setUp()
1957 self.create_pg_interfaces(range(4))
1959 for i in self.pg_interfaces:
1965 super(TestIPLPM, self).tearDown()
1966 for i in self.pg_interfaces:
1970 def test_ip_lpm(self):
1971 """ IP longest Prefix Match """
1973 s_24 = VppIpRoute(self, "10.1.2.0", 24,
1974 [VppRoutePath(self.pg1.remote_ip4,
1975 self.pg1.sw_if_index)])
1976 s_24.add_vpp_config()
1977 s_8 = VppIpRoute(self, "10.0.0.0", 8,
1978 [VppRoutePath(self.pg2.remote_ip4,
1979 self.pg2.sw_if_index)])
1980 s_8.add_vpp_config()
1982 p_8 = (Ether(src=self.pg0.remote_mac,
1983 dst=self.pg0.local_mac) /
1986 UDP(sport=1234, dport=1234) /
1987 Raw(b'\xa5' * 2000))
1988 p_24 = (Ether(src=self.pg0.remote_mac,
1989 dst=self.pg0.local_mac) /
1992 UDP(sport=1234, dport=1234) /
1993 Raw(b'\xa5' * 2000))
1995 self.logger.info(self.vapi.cli("sh ip fib mtrie"))
1996 rx = self.send_and_expect(self.pg0, p_8 * NUM_PKTS, self.pg2)
1997 rx = self.send_and_expect(self.pg0, p_24 * NUM_PKTS, self.pg1)
2000 class TestIPv4Frag(VppTestCase):
2001 """ IPv4 fragmentation """
2004 def setUpClass(cls):
2005 super(TestIPv4Frag, cls).setUpClass()
2007 cls.create_pg_interfaces([0, 1])
2008 cls.src_if = cls.pg0
2009 cls.dst_if = cls.pg1
2011 # setup all interfaces
2012 for i in cls.pg_interfaces:
2018 def tearDownClass(cls):
2019 super(TestIPv4Frag, cls).tearDownClass()
2021 def test_frag_large_packets(self):
2022 """ Fragmentation of large packets """
2024 self.vapi.cli("adjacency counters enable")
2026 p = (Ether(dst=self.src_if.local_mac, src=self.src_if.remote_mac) /
2027 IP(src=self.src_if.remote_ip4, dst=self.dst_if.remote_ip4) /
2028 UDP(sport=1234, dport=5678) / Raw())
2029 self.extend_packet(p, 6000, "abcde")
2030 saved_payload = p[Raw].load
2032 nbr = VppNeighbor(self,
2033 self.dst_if.sw_if_index,
2034 self.dst_if.remote_mac,
2035 self.dst_if.remote_ip4).add_vpp_config()
2037 # Force fragmentation by setting MTU of output interface
2038 # lower than packet size
2039 self.vapi.sw_interface_set_mtu(self.dst_if.sw_if_index,
2042 self.pg_enable_capture()
2043 self.src_if.add_stream(p)
2046 # Expecting 3 fragments because size of created fragments currently
2047 # cannot be larger then VPP buffer size (which is 2048)
2048 packets = self.dst_if.get_capture(3)
2050 # we should show 3 packets thru the neighbor
2051 self.assertEqual(3, nbr.get_stats()['packets'])
2053 # Assume VPP sends the fragments in order
2056 payload_offset = p.frag * 8
2057 if payload_offset > 0:
2058 payload_offset -= 8 # UDP header is not in payload
2059 self.assert_equal(payload_offset, len(payload))
2060 payload += p[Raw].load
2061 self.assert_equal(payload, saved_payload, "payload")
2064 class TestIPReplace(VppTestCase):
2065 """ IPv4 Table Replace """
2068 def setUpClass(cls):
2069 super(TestIPReplace, cls).setUpClass()
2072 def tearDownClass(cls):
2073 super(TestIPReplace, cls).tearDownClass()
2076 super(TestIPReplace, self).setUp()
2078 self.create_pg_interfaces(range(4))
2083 for i in self.pg_interfaces:
2087 i.generate_remote_hosts(2)
2088 self.tables.append(VppIpTable(self, table_id).add_vpp_config())
2092 super(TestIPReplace, self).tearDown()
2093 for i in self.pg_interfaces:
2097 def test_replace(self):
2098 """ IP Table Replace """
2100 MRouteItfFlags = VppEnum.vl_api_mfib_itf_flags_t
2101 MRouteEntryFlags = VppEnum.vl_api_mfib_entry_flags_t
2103 links = [self.pg0, self.pg1, self.pg2, self.pg3]
2104 routes = [[], [], [], []]
2106 # load up the tables with some routes
2107 for ii, t in enumerate(self.tables):
2108 for jj in range(N_ROUTES):
2110 self, "10.0.0.%d" % jj, 32,
2111 [VppRoutePath(links[ii].remote_hosts[0].ip4,
2112 links[ii].sw_if_index),
2113 VppRoutePath(links[ii].remote_hosts[1].ip4,
2114 links[ii].sw_if_index)],
2115 table_id=t.table_id).add_vpp_config()
2116 multi = VppIpMRoute(
2118 "239.0.0.%d" % jj, 32,
2119 MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
2120 [VppMRoutePath(self.pg0.sw_if_index,
2121 MRouteItfFlags.MFIB_API_ITF_FLAG_ACCEPT),
2122 VppMRoutePath(self.pg1.sw_if_index,
2123 MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD),
2124 VppMRoutePath(self.pg2.sw_if_index,
2125 MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD),
2126 VppMRoutePath(self.pg3.sw_if_index,
2127 MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD)],
2128 table_id=t.table_id).add_vpp_config()
2129 routes[ii].append({'uni': uni,
2133 # replace the tables a few times
2136 # replace_begin each table
2137 for t in self.tables:
2140 # all the routes are still there
2141 for ii, t in enumerate(self.tables):
2144 for r in routes[ii]:
2145 self.assertTrue(find_route_in_dump(dump, r['uni'], t))
2146 self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
2148 # redownload the even numbered routes
2149 for ii, t in enumerate(self.tables):
2150 for jj in range(0, N_ROUTES, 2):
2151 routes[ii][jj]['uni'].add_vpp_config()
2152 routes[ii][jj]['multi'].add_vpp_config()
2154 # signal each table replace_end
2155 for t in self.tables:
2158 # we should find the even routes, but not the odd
2159 for ii, t in enumerate(self.tables):
2162 for jj in range(0, N_ROUTES, 2):
2163 self.assertTrue(find_route_in_dump(
2164 dump, routes[ii][jj]['uni'], t))
2165 self.assertTrue(find_mroute_in_dump(
2166 mdump, routes[ii][jj]['multi'], t))
2167 for jj in range(1, N_ROUTES - 1, 2):
2168 self.assertFalse(find_route_in_dump(
2169 dump, routes[ii][jj]['uni'], t))
2170 self.assertFalse(find_mroute_in_dump(
2171 mdump, routes[ii][jj]['multi'], t))
2173 # reload all the routes
2174 for ii, t in enumerate(self.tables):
2175 for r in routes[ii]:
2176 r['uni'].add_vpp_config()
2177 r['multi'].add_vpp_config()
2179 # all the routes are still there
2180 for ii, t in enumerate(self.tables):
2183 for r in routes[ii]:
2184 self.assertTrue(find_route_in_dump(dump, r['uni'], t))
2185 self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
2188 # finally flush the tables for good measure
2190 for t in self.tables:
2192 self.assertEqual(len(t.dump()), 5)
2193 self.assertEqual(len(t.mdump()), 3)
2196 class TestIPCover(VppTestCase):
2197 """ IPv4 Table Cover """
2200 def setUpClass(cls):
2201 super(TestIPCover, cls).setUpClass()
2204 def tearDownClass(cls):
2205 super(TestIPCover, cls).tearDownClass()
2208 super(TestIPCover, self).setUp()
2210 self.create_pg_interfaces(range(4))
2215 for i in self.pg_interfaces:
2219 i.generate_remote_hosts(2)
2220 self.tables.append(VppIpTable(self, table_id).add_vpp_config())
2224 super(TestIPCover, self).tearDown()
2225 for i in self.pg_interfaces:
2229 def test_cover(self):
2230 """ IP Table Cover """
2232 # add a loop back with a /32 prefix
2233 lo = VppLoInterface(self)
2235 a = VppIpInterfaceAddress(self, lo, "127.0.0.1", 32).add_vpp_config()
2237 # add a neighbour that matches the loopback's /32
2238 nbr = VppNeighbor(self,
2241 "127.0.0.1").add_vpp_config()
2243 # add the default route which will be the cover for /32
2244 r = VppIpRoute(self, "0.0.0.0", 0,
2245 [VppRoutePath("127.0.0.1",
2247 register=False).add_vpp_config()
2249 # add/remove/add a longer mask cover
2250 r8 = VppIpRoute(self, "127.0.0.0", 8,
2251 [VppRoutePath("127.0.0.1",
2252 lo.sw_if_index)]).add_vpp_config()
2253 r8.remove_vpp_config()
2255 r8.remove_vpp_config()
2257 # remove the default route
2258 r.remove_vpp_config()
2260 # remove the interface prefix
2261 a.remove_vpp_config()
2264 class TestIP4Replace(VppTestCase):
2265 """ IPv4 Interface Address Replace """
2268 def setUpClass(cls):
2269 super(TestIP4Replace, cls).setUpClass()
2272 def tearDownClass(cls):
2273 super(TestIP4Replace, cls).tearDownClass()
2276 super(TestIP4Replace, self).setUp()
2278 self.create_pg_interfaces(range(4))
2280 for i in self.pg_interfaces:
2284 super(TestIP4Replace, self).tearDown()
2285 for i in self.pg_interfaces:
2288 def get_n_pfxs(self, intf):
2289 return len(self.vapi.ip_address_dump(intf.sw_if_index))
2291 def test_replace(self):
2292 """ IP interface address replace """
2294 intf_pfxs = [[], [], [], []]
2296 # add prefixes to each of the interfaces
2297 for i in range(len(self.pg_interfaces)):
2298 intf = self.pg_interfaces[i]
2301 addr = "172.16.%d.1" % intf.sw_if_index
2302 a = VppIpInterfaceAddress(self, intf, addr, 24).add_vpp_config()
2303 intf_pfxs[i].append(a)
2305 # 172.16.x.2/24 - a different address in the same subnet as above
2306 addr = "172.16.%d.2" % intf.sw_if_index
2307 a = VppIpInterfaceAddress(self, intf, addr, 24).add_vpp_config()
2308 intf_pfxs[i].append(a)
2310 # 172.15.x.2/24 - a different address and subnet
2311 addr = "172.15.%d.2" % intf.sw_if_index
2312 a = VppIpInterfaceAddress(self, intf, addr, 24).add_vpp_config()
2313 intf_pfxs[i].append(a)
2315 # a dump should n_address in it
2316 for intf in self.pg_interfaces:
2317 self.assertEqual(self.get_n_pfxs(intf), 3)
2320 # remove all the address thru a replace
2322 self.vapi.sw_interface_address_replace_begin()
2323 self.vapi.sw_interface_address_replace_end()
2324 for intf in self.pg_interfaces:
2325 self.assertEqual(self.get_n_pfxs(intf), 0)
2328 # add all the interface addresses back
2333 for intf in self.pg_interfaces:
2334 self.assertEqual(self.get_n_pfxs(intf), 3)
2337 # replace again, but this time update/re-add the address on the first
2340 self.vapi.sw_interface_address_replace_begin()
2342 for p in intf_pfxs[:2]:
2346 self.vapi.sw_interface_address_replace_end()
2348 # on the first two the address still exist,
2349 # on the other two they do not
2350 for intf in self.pg_interfaces[:2]:
2351 self.assertEqual(self.get_n_pfxs(intf), 3)
2352 for p in intf_pfxs[:2]:
2354 self.assertTrue(v.query_vpp_config())
2355 for intf in self.pg_interfaces[2:]:
2356 self.assertEqual(self.get_n_pfxs(intf), 0)
2359 # add all the interface addresses back on the last two
2361 for p in intf_pfxs[2:]:
2364 for intf in self.pg_interfaces:
2365 self.assertEqual(self.get_n_pfxs(intf), 3)
2368 # replace again, this time add different prefixes on all the interfaces
2370 self.vapi.sw_interface_address_replace_begin()
2373 for intf in self.pg_interfaces:
2375 addr = "172.18.%d.1" % intf.sw_if_index
2376 pfxs.append(VppIpInterfaceAddress(self, intf, addr,
2377 24).add_vpp_config())
2379 self.vapi.sw_interface_address_replace_end()
2381 # only .18 should exist on each interface
2382 for intf in self.pg_interfaces:
2383 self.assertEqual(self.get_n_pfxs(intf), 1)
2385 self.assertTrue(pfx.query_vpp_config())
2390 self.vapi.sw_interface_address_replace_begin()
2391 self.vapi.sw_interface_address_replace_end()
2392 for intf in self.pg_interfaces:
2393 self.assertEqual(self.get_n_pfxs(intf), 0)
2396 # add prefixes to each interface. post-begin add the prefix from
2397 # interface X onto interface Y. this would normally be an error
2398 # since it would generate a 'duplicate address' warning. but in
2399 # this case, since what is newly downloaded is sane, it's ok
2401 for intf in self.pg_interfaces:
2403 addr = "172.18.%d.1" % intf.sw_if_index
2404 VppIpInterfaceAddress(self, intf, addr, 24).add_vpp_config()
2406 self.vapi.sw_interface_address_replace_begin()
2409 for intf in self.pg_interfaces:
2411 addr = "172.18.%d.1" % (intf.sw_if_index + 1)
2412 pfxs.append(VppIpInterfaceAddress(self, intf,
2413 addr, 24).add_vpp_config())
2415 self.vapi.sw_interface_address_replace_end()
2417 self.logger.info(self.vapi.cli("sh int addr"))
2419 for intf in self.pg_interfaces:
2420 self.assertEqual(self.get_n_pfxs(intf), 1)
2422 self.assertTrue(pfx.query_vpp_config())
2425 if __name__ == '__main__':
2426 unittest.main(testRunner=VppTestRunner)