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, MRouteItfFlags, MRouteEntryFlags, VppMplsIpBind, \
18 VppMplsTable, VppIpTable, FibPathType, find_route, \
19 VppIpInterfaceAddress, find_route_in_dump, find_mroute_in_dump
20 from vpp_sub_interface import VppSubInterface, VppDot1QSubint, VppDot1ADSubint
21 from vpp_papi import VppEnum
22 from vpp_neighbor import VppNeighbor
23 from vpp_lo_interface import VppLoInterface
24 from vpp_policer import VppPolicer
29 class TestIPv4(VppTestCase):
30 """ IPv4 Test Case """
34 super(TestIPv4, cls).setUpClass()
37 def tearDownClass(cls):
38 super(TestIPv4, cls).tearDownClass()
42 Perform test setup before test case.
45 - create 3 pg interfaces
46 - untagged pg0 interface
47 - Dot1Q subinterface on pg1
48 - Dot1AD subinterface on pg2
50 - put it into UP state
52 - resolve neighbor address using ARP
53 - configure 200 fib entries
55 :ivar list interfaces: pg interfaces and subinterfaces.
56 :ivar dict flows: IPv4 packet flows in test.
58 super(TestIPv4, self).setUp()
60 # create 3 pg interfaces
61 self.create_pg_interfaces(range(3))
63 # create 2 subinterfaces for pg1 and pg2
64 self.sub_interfaces = [
65 VppDot1QSubint(self, self.pg1, 100),
66 VppDot1ADSubint(self, self.pg2, 200, 300, 400)]
68 # packet flows mapping pg0 -> pg1.sub, pg2.sub, etc.
70 self.flows[self.pg0] = [self.pg1.sub_if, self.pg2.sub_if]
71 self.flows[self.pg1.sub_if] = [self.pg0, self.pg2.sub_if]
72 self.flows[self.pg2.sub_if] = [self.pg0, self.pg1.sub_if]
75 self.pg_if_packet_sizes = [64, 1500, 9020]
77 self.interfaces = list(self.pg_interfaces)
78 self.interfaces.extend(self.sub_interfaces)
80 # setup all interfaces
81 for i in self.interfaces:
86 # config 2M FIB entries
89 """Run standard test teardown and log ``show ip arp``."""
90 super(TestIPv4, self).tearDown()
92 def show_commands_at_teardown(self):
93 self.logger.info(self.vapi.cli("show ip4 neighbors"))
94 # info(self.vapi.cli("show ip fib")) # many entries
96 def modify_packet(self, src_if, packet_size, pkt):
97 """Add load, set destination IP and extend packet to required packet
98 size for defined interface.
100 :param VppInterface src_if: Interface to create packet for.
101 :param int packet_size: Required packet size.
102 :param Scapy pkt: Packet to be modified.
104 dst_if_idx = int(packet_size / 10 % 2)
105 dst_if = self.flows[src_if][dst_if_idx]
106 info = self.create_packet_info(src_if, dst_if)
107 payload = self.info_to_payload(info)
109 p[IP].dst = dst_if.remote_ip4
111 if isinstance(src_if, VppSubInterface):
112 p = src_if.add_dot1_layer(p)
113 self.extend_packet(p, packet_size)
117 def create_stream(self, src_if):
118 """Create input packet stream for defined interface.
120 :param VppInterface src_if: Interface to create packet stream for.
122 hdr_ext = 4 if isinstance(src_if, VppSubInterface) else 0
123 pkt_tmpl = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
124 IP(src=src_if.remote_ip4) /
125 UDP(sport=1234, dport=1234))
127 pkts = [self.modify_packet(src_if, i, pkt_tmpl)
128 for i in moves.range(self.pg_if_packet_sizes[0],
129 self.pg_if_packet_sizes[1], 10)]
130 pkts_b = [self.modify_packet(src_if, i, pkt_tmpl)
131 for i in moves.range(self.pg_if_packet_sizes[1] + hdr_ext,
132 self.pg_if_packet_sizes[2] + hdr_ext,
138 def verify_capture(self, dst_if, capture):
139 """Verify captured input packet stream for defined interface.
141 :param VppInterface dst_if: Interface to verify captured packet stream
143 :param list capture: Captured packet stream.
145 self.logger.info("Verifying capture on interface %s" % dst_if.name)
147 for i in self.interfaces:
148 last_info[i.sw_if_index] = None
150 dst_sw_if_index = dst_if.sw_if_index
151 if hasattr(dst_if, 'parent'):
153 for packet in capture:
155 # Check VLAN tags and Ethernet header
156 packet = dst_if.remove_dot1_layer(packet)
157 self.assertTrue(Dot1Q not in packet)
161 payload_info = self.payload_to_info(packet[Raw])
162 packet_index = payload_info.index
163 self.assertEqual(payload_info.dst, dst_sw_if_index)
165 "Got packet on port %s: src=%u (id=%u)" %
166 (dst_if.name, payload_info.src, packet_index))
167 next_info = self.get_next_packet_info_for_interface2(
168 payload_info.src, dst_sw_if_index,
169 last_info[payload_info.src])
170 last_info[payload_info.src] = next_info
171 self.assertTrue(next_info is not None)
172 self.assertEqual(packet_index, next_info.index)
173 saved_packet = next_info.data
174 # Check standard fields
175 self.assertEqual(ip.src, saved_packet[IP].src)
176 self.assertEqual(ip.dst, saved_packet[IP].dst)
177 self.assertEqual(udp.sport, saved_packet[UDP].sport)
178 self.assertEqual(udp.dport, saved_packet[UDP].dport)
180 self.logger.error(ppp("Unexpected or invalid packet:", packet))
182 for i in self.interfaces:
183 remaining_packet = self.get_next_packet_info_for_interface2(
184 i.sw_if_index, dst_sw_if_index, last_info[i.sw_if_index])
185 self.assertTrue(remaining_packet is None,
186 "Interface %s: Packet expected from interface %s "
187 "didn't arrive" % (dst_if.name, i.name))
194 - Create IPv4 stream for pg0 interface
195 - Create IPv4 tagged streams for pg1's and pg2's sub-interface.
196 - Send and verify received packets on each interface.
199 pkts = self.create_stream(self.pg0)
200 self.pg0.add_stream(pkts)
202 for i in self.sub_interfaces:
203 pkts = self.create_stream(i)
204 i.parent.add_stream(pkts)
206 self.pg_enable_capture(self.pg_interfaces)
209 pkts = self.pg0.get_capture()
210 self.verify_capture(self.pg0, pkts)
212 for i in self.sub_interfaces:
213 pkts = i.parent.get_capture()
214 self.verify_capture(i, pkts)
217 class TestIPv4IfAddrRoute(VppTestCase):
218 """ IPv4 Interface Addr Route Test Case """
222 super(TestIPv4IfAddrRoute, cls).setUpClass()
225 def tearDownClass(cls):
226 super(TestIPv4IfAddrRoute, cls).tearDownClass()
229 super(TestIPv4IfAddrRoute, self).setUp()
231 # create 1 pg interface
232 self.create_pg_interfaces(range(1))
234 for i in self.pg_interfaces:
240 super(TestIPv4IfAddrRoute, self).tearDown()
241 for i in self.pg_interfaces:
245 def test_ipv4_ifaddrs_same_prefix(self):
246 """ IPv4 Interface Addresses Same Prefix test
250 - Verify no route in FIB for prefix 10.10.10.0/24
251 - Configure IPv4 address 10.10.10.10/24 on an interface
252 - Verify route in FIB for prefix 10.10.10.0/24
253 - Configure IPv4 address 10.10.10.20/24 on an interface
254 - Delete 10.10.10.10/24 from interface
255 - Verify route in FIB for prefix 10.10.10.0/24
256 - Delete 10.10.10.20/24 from interface
257 - Verify no route in FIB for prefix 10.10.10.0/24
260 # create two addresses, verify route not present
261 if_addr1 = VppIpInterfaceAddress(self, self.pg0, "10.10.10.10", 24)
262 if_addr2 = VppIpInterfaceAddress(self, self.pg0, "10.10.10.20", 24)
263 self.assertFalse(if_addr1.query_vpp_config()) # 10.10.10.10/24
264 self.assertFalse(find_route(self, "10.10.10.10", 32))
265 self.assertFalse(find_route(self, "10.10.10.20", 32))
266 self.assertFalse(find_route(self, "10.10.10.255", 32))
267 self.assertFalse(find_route(self, "10.10.10.0", 32))
269 # configure first address, verify route present
270 if_addr1.add_vpp_config()
271 self.assertTrue(if_addr1.query_vpp_config()) # 10.10.10.10/24
272 self.assertTrue(find_route(self, "10.10.10.10", 32))
273 self.assertFalse(find_route(self, "10.10.10.20", 32))
274 self.assertTrue(find_route(self, "10.10.10.255", 32))
275 self.assertTrue(find_route(self, "10.10.10.0", 32))
277 # configure second address, delete first, verify route not removed
278 if_addr2.add_vpp_config()
279 if_addr1.remove_vpp_config()
280 self.assertFalse(if_addr1.query_vpp_config()) # 10.10.10.10/24
281 self.assertTrue(if_addr2.query_vpp_config()) # 10.10.10.20/24
282 self.assertFalse(find_route(self, "10.10.10.10", 32))
283 self.assertTrue(find_route(self, "10.10.10.20", 32))
284 self.assertTrue(find_route(self, "10.10.10.255", 32))
285 self.assertTrue(find_route(self, "10.10.10.0", 32))
287 # delete second address, verify route removed
288 if_addr2.remove_vpp_config()
289 self.assertFalse(if_addr2.query_vpp_config()) # 10.10.10.20/24
290 self.assertFalse(find_route(self, "10.10.10.10", 32))
291 self.assertFalse(find_route(self, "10.10.10.20", 32))
292 self.assertFalse(find_route(self, "10.10.10.255", 32))
293 self.assertFalse(find_route(self, "10.10.10.0", 32))
295 def test_ipv4_ifaddr_route(self):
296 """ IPv4 Interface Address Route test
301 - Configure IPv4 address on loopback
302 - Verify that address is not in the FIB
304 - Verify that address is in the FIB now
305 - Bring loopback down
306 - Verify that address is not in the FIB anymore
308 - Configure IPv4 address on loopback
309 - Verify that address is in the FIB now
312 # create a loopback and configure IPv4
313 loopbacks = self.create_loopback_interfaces(1)
314 lo_if = self.lo_interfaces[0]
316 lo_if.local_ip4_prefix_len = 32
319 # The intf was down when addr was added -> entry not in FIB
320 fib4_dump = self.vapi.ip_route_dump(0)
321 self.assertFalse(lo_if.is_ip4_entry_in_fib_dump(fib4_dump))
323 # When intf is brought up, entry is added
325 fib4_dump = self.vapi.ip_route_dump(0)
326 self.assertTrue(lo_if.is_ip4_entry_in_fib_dump(fib4_dump))
328 # When intf is brought down, entry is removed
330 fib4_dump = self.vapi.ip_route_dump(0)
331 self.assertFalse(lo_if.is_ip4_entry_in_fib_dump(fib4_dump))
333 # Remove addr, bring up interface, re-add -> entry in FIB
337 fib4_dump = self.vapi.ip_route_dump(0)
338 self.assertTrue(lo_if.is_ip4_entry_in_fib_dump(fib4_dump))
341 class TestICMPEcho(VppTestCase):
342 """ ICMP Echo Test Case """
346 super(TestICMPEcho, cls).setUpClass()
349 def tearDownClass(cls):
350 super(TestICMPEcho, cls).tearDownClass()
353 super(TestICMPEcho, self).setUp()
355 # create 1 pg interface
356 self.create_pg_interfaces(range(1))
358 for i in self.pg_interfaces:
364 super(TestICMPEcho, self).tearDown()
365 for i in self.pg_interfaces:
369 def test_icmp_echo(self):
370 """ VPP replies to ICMP Echo Request
374 - Receive ICMP Echo Request message on pg0 interface.
375 - Check outgoing ICMP Echo Reply message on pg0 interface.
380 icmp_load = b'\x0a' * 18
381 p_echo_request = (Ether(src=self.pg0.remote_mac,
382 dst=self.pg0.local_mac) /
383 IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) /
384 ICMP(id=icmp_id, seq=icmp_seq) /
387 self.pg0.add_stream(p_echo_request)
388 self.pg_enable_capture(self.pg_interfaces)
391 rx = self.pg0.get_capture(1)
397 self.assertEqual(ether.src, self.pg0.local_mac)
398 self.assertEqual(ether.dst, self.pg0.remote_mac)
400 self.assertEqual(ipv4.src, self.pg0.local_ip4)
401 self.assertEqual(ipv4.dst, self.pg0.remote_ip4)
403 self.assertEqual(icmptypes[icmp.type], "echo-reply")
404 self.assertEqual(icmp.id, icmp_id)
405 self.assertEqual(icmp.seq, icmp_seq)
406 self.assertEqual(icmp[Raw].load, icmp_load)
409 class TestIPv4FibCrud(VppTestCase):
410 """ FIB - add/update/delete - ip4 routes
418 ..note:: Python API is too slow to add many routes, needs replacement.
421 def config_fib_many_to_one(self, start_dest_addr, next_hop_addr,
425 :param start_dest_addr:
426 :param next_hop_addr:
428 :return list: added ips with 32 prefix
431 for i in range(count):
432 r = VppIpRoute(self, start_dest_addr % (i + start), 32,
433 [VppRoutePath(next_hop_addr, 0xffffffff)])
438 def unconfig_fib_many_to_one(self, start_dest_addr, next_hop_addr,
442 for i in range(count):
443 r = VppIpRoute(self, start_dest_addr % (i + start), 32,
444 [VppRoutePath(next_hop_addr, 0xffffffff)])
445 r.remove_vpp_config()
449 def create_stream(self, src_if, dst_if, routes, count):
452 for _ in range(count):
453 dst_addr = random.choice(routes).prefix.network_address
454 info = self.create_packet_info(src_if, dst_if)
455 payload = self.info_to_payload(info)
456 p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
457 IP(src=src_if.remote_ip4, dst=str(dst_addr)) /
458 UDP(sport=1234, dport=1234) /
461 self.extend_packet(p, random.choice(self.pg_if_packet_sizes))
466 def _find_ip_match(self, find_in, pkt):
468 if self.payload_to_info(p[Raw]) == \
469 self.payload_to_info(pkt[Raw]):
470 if p[IP].src != pkt[IP].src:
472 if p[IP].dst != pkt[IP].dst:
474 if p[UDP].sport != pkt[UDP].sport:
476 if p[UDP].dport != pkt[UDP].dport:
481 def verify_capture(self, dst_interface, received_pkts, expected_pkts):
482 self.assertEqual(len(received_pkts), len(expected_pkts))
483 to_verify = list(expected_pkts)
484 for p in received_pkts:
485 self.assertEqual(p.src, dst_interface.local_mac)
486 self.assertEqual(p.dst, dst_interface.remote_mac)
487 x = self._find_ip_match(to_verify, p)
489 self.assertListEqual(to_verify, [])
491 def verify_route_dump(self, routes):
493 self.assertTrue(find_route(self,
494 r.prefix.network_address,
497 def verify_not_in_route_dump(self, routes):
499 self.assertFalse(find_route(self,
500 r.prefix.network_address,
506 #. Create and initialize 3 pg interfaces.
507 #. initialize class attributes configured_routes and deleted_routes
508 to store information between tests.
510 super(TestIPv4FibCrud, cls).setUpClass()
513 # create 3 pg interfaces
514 cls.create_pg_interfaces(range(3))
516 cls.interfaces = list(cls.pg_interfaces)
518 # setup all interfaces
519 for i in cls.interfaces:
524 cls.configured_routes = []
525 cls.deleted_routes = []
526 cls.pg_if_packet_sizes = [64, 512, 1518, 9018]
529 super(TestIPv4FibCrud, cls).tearDownClass()
533 def tearDownClass(cls):
534 super(TestIPv4FibCrud, cls).tearDownClass()
537 super(TestIPv4FibCrud, self).setUp()
538 self.reset_packet_infos()
540 self.configured_routes = []
541 self.deleted_routes = []
543 def test_1_add_routes(self):
544 """ Add 1k routes """
546 # add 100 routes check with traffic script.
547 self.configured_routes.extend(self.config_fib_many_to_one(
548 "10.0.0.%d", self.pg0.remote_ip4, 100))
550 self.verify_route_dump(self.configured_routes)
552 self.stream_1 = self.create_stream(
553 self.pg1, self.pg0, self.configured_routes, 100)
554 self.stream_2 = self.create_stream(
555 self.pg2, self.pg0, self.configured_routes, 100)
556 self.pg1.add_stream(self.stream_1)
557 self.pg2.add_stream(self.stream_2)
559 self.pg_enable_capture(self.pg_interfaces)
562 pkts = self.pg0.get_capture(len(self.stream_1) + len(self.stream_2))
563 self.verify_capture(self.pg0, pkts, self.stream_1 + self.stream_2)
565 def test_2_del_routes(self):
566 """ Delete 100 routes
568 - delete 10 routes check with traffic script.
570 # config 1M FIB entries
571 self.configured_routes.extend(self.config_fib_many_to_one(
572 "10.0.0.%d", self.pg0.remote_ip4, 100))
573 self.deleted_routes.extend(self.unconfig_fib_many_to_one(
574 "10.0.0.%d", self.pg0.remote_ip4, 10, start=10))
575 for x in self.deleted_routes:
576 self.configured_routes.remove(x)
578 self.verify_route_dump(self.configured_routes)
580 self.stream_1 = self.create_stream(
581 self.pg1, self.pg0, self.configured_routes, 100)
582 self.stream_2 = self.create_stream(
583 self.pg2, self.pg0, self.configured_routes, 100)
584 self.stream_3 = self.create_stream(
585 self.pg1, self.pg0, self.deleted_routes, 100)
586 self.stream_4 = self.create_stream(
587 self.pg2, self.pg0, self.deleted_routes, 100)
588 self.pg1.add_stream(self.stream_1 + self.stream_3)
589 self.pg2.add_stream(self.stream_2 + self.stream_4)
590 self.pg_enable_capture(self.pg_interfaces)
593 pkts = self.pg0.get_capture(len(self.stream_1) + len(self.stream_2))
594 self.verify_capture(self.pg0, pkts, self.stream_1 + self.stream_2)
596 def test_3_add_new_routes(self):
599 - re-add 5 routes check with traffic script.
600 - add 100 routes check with traffic script.
602 # config 1M FIB entries
603 self.configured_routes.extend(self.config_fib_many_to_one(
604 "10.0.0.%d", self.pg0.remote_ip4, 100))
605 self.deleted_routes.extend(self.unconfig_fib_many_to_one(
606 "10.0.0.%d", self.pg0.remote_ip4, 10, start=10))
607 for x in self.deleted_routes:
608 self.configured_routes.remove(x)
610 tmp = self.config_fib_many_to_one(
611 "10.0.0.%d", self.pg0.remote_ip4, 5, start=10)
612 self.configured_routes.extend(tmp)
614 self.deleted_routes.remove(x)
616 self.configured_routes.extend(self.config_fib_many_to_one(
617 "10.0.1.%d", self.pg0.remote_ip4, 100))
619 self.verify_route_dump(self.configured_routes)
621 self.stream_1 = self.create_stream(
622 self.pg1, self.pg0, self.configured_routes, 300)
623 self.stream_2 = self.create_stream(
624 self.pg2, self.pg0, self.configured_routes, 300)
625 self.stream_3 = self.create_stream(
626 self.pg1, self.pg0, self.deleted_routes, 100)
627 self.stream_4 = self.create_stream(
628 self.pg2, self.pg0, self.deleted_routes, 100)
630 self.pg1.add_stream(self.stream_1 + self.stream_3)
631 self.pg2.add_stream(self.stream_2 + self.stream_4)
632 self.pg_enable_capture(self.pg_interfaces)
635 pkts = self.pg0.get_capture(len(self.stream_1) + len(self.stream_2))
636 self.verify_capture(self.pg0, pkts, self.stream_1 + self.stream_2)
638 # delete 5 routes check with traffic script.
639 # add 100 routes check with traffic script.
640 self.deleted_routes.extend(self.unconfig_fib_many_to_one(
641 "10.0.0.%d", self.pg0.remote_ip4, 15))
642 self.deleted_routes.extend(self.unconfig_fib_many_to_one(
643 "10.0.0.%d", self.pg0.remote_ip4, 85))
644 self.deleted_routes.extend(self.unconfig_fib_many_to_one(
645 "10.0.1.%d", self.pg0.remote_ip4, 100))
646 self.verify_not_in_route_dump(self.deleted_routes)
649 class TestIPNull(VppTestCase):
650 """ IPv4 routes via NULL """
654 super(TestIPNull, cls).setUpClass()
657 def tearDownClass(cls):
658 super(TestIPNull, cls).tearDownClass()
661 super(TestIPNull, self).setUp()
663 # create 2 pg interfaces
664 self.create_pg_interfaces(range(2))
666 for i in self.pg_interfaces:
672 super(TestIPNull, self).tearDown()
673 for i in self.pg_interfaces:
677 def test_ip_null(self):
678 """ IP NULL route """
681 # A route via IP NULL that will reply with ICMP unreachables
683 ip_unreach = VppIpRoute(
684 self, "10.0.0.1", 32,
685 [VppRoutePath("0.0.0.0",
687 type=FibPathType.FIB_PATH_TYPE_ICMP_UNREACH)])
688 ip_unreach.add_vpp_config()
690 p_unreach = (Ether(src=self.pg0.remote_mac,
691 dst=self.pg0.local_mac) /
692 IP(src=self.pg0.remote_ip4, dst="10.0.0.1") /
693 UDP(sport=1234, dport=1234) /
695 self.pg0.add_stream(p_unreach)
696 self.pg_enable_capture(self.pg_interfaces)
699 rx = self.pg0.get_capture(1)
703 self.assertEqual(icmptypes[icmp.type], "dest-unreach")
704 self.assertEqual(icmpcodes[icmp.type][icmp.code], "host-unreachable")
705 self.assertEqual(icmp.src, self.pg0.remote_ip4)
706 self.assertEqual(icmp.dst, "10.0.0.1")
709 # ICMP replies are rate limited. so sit and spin.
714 # A route via IP NULL that will reply with ICMP prohibited
716 ip_prohibit = VppIpRoute(
717 self, "10.0.0.2", 32,
718 [VppRoutePath("0.0.0.0",
720 type=FibPathType.FIB_PATH_TYPE_ICMP_PROHIBIT)])
721 ip_prohibit.add_vpp_config()
723 p_prohibit = (Ether(src=self.pg0.remote_mac,
724 dst=self.pg0.local_mac) /
725 IP(src=self.pg0.remote_ip4, dst="10.0.0.2") /
726 UDP(sport=1234, dport=1234) /
729 self.pg0.add_stream(p_prohibit)
730 self.pg_enable_capture(self.pg_interfaces)
733 rx = self.pg0.get_capture(1)
738 self.assertEqual(icmptypes[icmp.type], "dest-unreach")
739 self.assertEqual(icmpcodes[icmp.type][icmp.code], "host-prohibited")
740 self.assertEqual(icmp.src, self.pg0.remote_ip4)
741 self.assertEqual(icmp.dst, "10.0.0.2")
743 def test_ip_drop(self):
744 """ IP Drop Routes """
746 p = (Ether(src=self.pg0.remote_mac,
747 dst=self.pg0.local_mac) /
748 IP(src=self.pg0.remote_ip4, dst="1.1.1.1") /
749 UDP(sport=1234, dport=1234) /
752 r1 = VppIpRoute(self, "1.1.1.0", 24,
753 [VppRoutePath(self.pg1.remote_ip4,
754 self.pg1.sw_if_index)])
757 rx = self.send_and_expect(self.pg0, p * NUM_PKTS, self.pg1)
760 # insert a more specific as a drop
762 r2 = VppIpRoute(self, "1.1.1.1", 32,
763 [VppRoutePath("0.0.0.0",
765 type=FibPathType.FIB_PATH_TYPE_DROP)])
768 self.send_and_assert_no_replies(self.pg0, p * NUM_PKTS, "Drop Route")
769 r2.remove_vpp_config()
770 rx = self.send_and_expect(self.pg0, p * NUM_PKTS, self.pg1)
773 class TestIPDisabled(VppTestCase):
774 """ IPv4 disabled """
778 super(TestIPDisabled, cls).setUpClass()
781 def tearDownClass(cls):
782 super(TestIPDisabled, cls).tearDownClass()
785 super(TestIPDisabled, self).setUp()
787 # create 2 pg interfaces
788 self.create_pg_interfaces(range(2))
792 self.pg0.config_ip4()
793 self.pg0.resolve_arp()
795 # PG 1 is not IP enabled
799 super(TestIPDisabled, self).tearDown()
800 for i in self.pg_interfaces:
804 def test_ip_disabled(self):
809 # one accepting interface, pg0, 2 forwarding interfaces
811 route_232_1_1_1 = VppIpMRoute(
815 MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
816 [VppMRoutePath(self.pg1.sw_if_index,
817 MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
818 VppMRoutePath(self.pg0.sw_if_index,
819 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
820 route_232_1_1_1.add_vpp_config()
822 pu = (Ether(src=self.pg1.remote_mac,
823 dst=self.pg1.local_mac) /
824 IP(src="10.10.10.10", dst=self.pg0.remote_ip4) /
825 UDP(sport=1234, dport=1234) /
827 pm = (Ether(src=self.pg1.remote_mac,
828 dst=self.pg1.local_mac) /
829 IP(src="10.10.10.10", dst="232.1.1.1") /
830 UDP(sport=1234, dport=1234) /
834 # PG1 does not forward IP traffic
836 self.send_and_assert_no_replies(self.pg1, pu, "IP disabled")
837 self.send_and_assert_no_replies(self.pg1, pm, "IP disabled")
842 self.pg1.config_ip4()
845 # Now we get packets through
847 self.pg1.add_stream(pu)
848 self.pg_enable_capture(self.pg_interfaces)
850 rx = self.pg0.get_capture(1)
852 self.pg1.add_stream(pm)
853 self.pg_enable_capture(self.pg_interfaces)
855 rx = self.pg0.get_capture(1)
860 self.pg1.unconfig_ip4()
863 # PG1 does not forward IP traffic
865 self.send_and_assert_no_replies(self.pg1, pu, "IP disabled")
866 self.send_and_assert_no_replies(self.pg1, pm, "IP disabled")
869 class TestIPSubNets(VppTestCase):
874 super(TestIPSubNets, cls).setUpClass()
877 def tearDownClass(cls):
878 super(TestIPSubNets, cls).tearDownClass()
881 super(TestIPSubNets, self).setUp()
883 # create a 2 pg interfaces
884 self.create_pg_interfaces(range(2))
886 # pg0 we will use to experiment
889 # pg1 is setup normally
891 self.pg1.config_ip4()
892 self.pg1.resolve_arp()
895 super(TestIPSubNets, self).tearDown()
896 for i in self.pg_interfaces:
899 def test_ip_sub_nets(self):
903 # Configure a covering route to forward so we know
904 # when we are dropping
906 cover_route = VppIpRoute(self, "10.0.0.0", 8,
907 [VppRoutePath(self.pg1.remote_ip4,
908 self.pg1.sw_if_index)])
909 cover_route.add_vpp_config()
911 p = (Ether(src=self.pg1.remote_mac,
912 dst=self.pg1.local_mac) /
913 IP(dst="10.10.10.10", src=self.pg0.local_ip4) /
914 UDP(sport=1234, dport=1234) /
917 self.pg1.add_stream(p)
918 self.pg_enable_capture(self.pg_interfaces)
920 rx = self.pg1.get_capture(1)
923 # Configure some non-/24 subnets on an IP interface
925 ip_addr_n = socket.inet_pton(socket.AF_INET, "10.10.10.10")
927 self.vapi.sw_interface_add_del_address(
928 sw_if_index=self.pg0.sw_if_index,
929 prefix="10.10.10.10/16")
931 pn = (Ether(src=self.pg1.remote_mac,
932 dst=self.pg1.local_mac) /
933 IP(dst="10.10.0.0", src=self.pg0.local_ip4) /
934 UDP(sport=1234, dport=1234) /
936 pb = (Ether(src=self.pg1.remote_mac,
937 dst=self.pg1.local_mac) /
938 IP(dst="10.10.255.255", src=self.pg0.local_ip4) /
939 UDP(sport=1234, dport=1234) /
942 self.send_and_assert_no_replies(self.pg1, pn, "IP Network address")
943 self.send_and_assert_no_replies(self.pg1, pb, "IP Broadcast address")
945 # remove the sub-net and we are forwarding via the cover again
946 self.vapi.sw_interface_add_del_address(
947 sw_if_index=self.pg0.sw_if_index,
948 prefix="10.10.10.10/16",
951 self.pg1.add_stream(pn)
952 self.pg_enable_capture(self.pg_interfaces)
954 rx = self.pg1.get_capture(1)
955 self.pg1.add_stream(pb)
956 self.pg_enable_capture(self.pg_interfaces)
958 rx = self.pg1.get_capture(1)
961 # A /31 is a special case where the 'other-side' is an attached host
962 # packets to that peer generate ARP requests
964 ip_addr_n = socket.inet_pton(socket.AF_INET, "10.10.10.10")
966 self.vapi.sw_interface_add_del_address(
967 sw_if_index=self.pg0.sw_if_index,
968 prefix="10.10.10.10/31")
970 pn = (Ether(src=self.pg1.remote_mac,
971 dst=self.pg1.local_mac) /
972 IP(dst="10.10.10.11", src=self.pg0.local_ip4) /
973 UDP(sport=1234, dport=1234) /
976 self.pg1.add_stream(pn)
977 self.pg_enable_capture(self.pg_interfaces)
979 rx = self.pg0.get_capture(1)
982 # remove the sub-net and we are forwarding via the cover again
983 self.vapi.sw_interface_add_del_address(
984 sw_if_index=self.pg0.sw_if_index,
985 prefix="10.10.10.10/31", is_add=0)
987 self.pg1.add_stream(pn)
988 self.pg_enable_capture(self.pg_interfaces)
990 rx = self.pg1.get_capture(1)
993 class TestIPLoadBalance(VppTestCase):
994 """ IPv4 Load-Balancing """
998 super(TestIPLoadBalance, cls).setUpClass()
1001 def tearDownClass(cls):
1002 super(TestIPLoadBalance, cls).tearDownClass()
1005 super(TestIPLoadBalance, self).setUp()
1007 self.create_pg_interfaces(range(5))
1008 mpls_tbl = VppMplsTable(self, 0)
1009 mpls_tbl.add_vpp_config()
1011 for i in self.pg_interfaces:
1018 for i in self.pg_interfaces:
1022 super(TestIPLoadBalance, self).tearDown()
1024 def send_and_expect_load_balancing(self, input, pkts, outputs):
1025 input.add_stream(pkts)
1026 self.pg_enable_capture(self.pg_interfaces)
1030 rx = oo._get_capture(1)
1031 self.assertNotEqual(0, len(rx))
1036 def send_and_expect_one_itf(self, input, pkts, itf):
1037 input.add_stream(pkts)
1038 self.pg_enable_capture(self.pg_interfaces)
1040 rx = itf.get_capture(len(pkts))
1042 def test_ip_load_balance(self):
1043 """ IP Load-Balancing """
1046 # An array of packets that differ only in the destination port
1052 # An array of packets that differ only in the source address
1057 for ii in range(NUM_PKTS):
1058 port_ip_hdr = (IP(dst="10.0.0.1", src="20.0.0.1") /
1059 UDP(sport=1234, dport=1234 + ii) /
1061 port_ip_pkts.append((Ether(src=self.pg0.remote_mac,
1062 dst=self.pg0.local_mac) /
1064 port_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
1065 dst=self.pg0.local_mac) /
1066 MPLS(label=66, ttl=2) /
1069 src_ip_hdr = (IP(dst="10.0.0.1", src="20.0.0.%d" % ii) /
1070 UDP(sport=1234, dport=1234) /
1072 src_ip_pkts.append((Ether(src=self.pg0.remote_mac,
1073 dst=self.pg0.local_mac) /
1075 src_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
1076 dst=self.pg0.local_mac) /
1077 MPLS(label=66, ttl=2) /
1080 route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32,
1081 [VppRoutePath(self.pg1.remote_ip4,
1082 self.pg1.sw_if_index),
1083 VppRoutePath(self.pg2.remote_ip4,
1084 self.pg2.sw_if_index)])
1085 route_10_0_0_1.add_vpp_config()
1087 binding = VppMplsIpBind(self, 66, "10.0.0.1", 32)
1088 binding.add_vpp_config()
1091 # inject the packet on pg0 - expect load-balancing across the 2 paths
1092 # - since the default hash config is to use IP src,dst and port
1094 # We are not going to ensure equal amounts of packets across each link,
1095 # since the hash algorithm is statistical and therefore this can never
1096 # be guaranteed. But with 64 different packets we do expect some
1097 # balancing. So instead just ensure there is traffic on each link.
1099 self.send_and_expect_load_balancing(self.pg0, port_ip_pkts,
1100 [self.pg1, self.pg2])
1101 self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
1102 [self.pg1, self.pg2])
1103 self.send_and_expect_load_balancing(self.pg0, port_mpls_pkts,
1104 [self.pg1, self.pg2])
1105 self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
1106 [self.pg1, self.pg2])
1109 # change the flow hash config so it's only IP src,dst
1110 # - now only the stream with differing source address will
1113 self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, sport=0, dport=0)
1115 self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
1116 [self.pg1, self.pg2])
1117 self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
1118 [self.pg1, self.pg2])
1120 self.send_and_expect_one_itf(self.pg0, port_ip_pkts, self.pg2)
1123 # change the flow hash config back to defaults
1125 self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, sport=1, dport=1)
1128 # Recursive prefixes
1129 # - testing that 2 stages of load-balancing occurs and there is no
1130 # polarisation (i.e. only 2 of 4 paths are used)
1135 for ii in range(257):
1136 port_pkts.append((Ether(src=self.pg0.remote_mac,
1137 dst=self.pg0.local_mac) /
1138 IP(dst="1.1.1.1", src="20.0.0.1") /
1139 UDP(sport=1234, dport=1234 + ii) /
1140 Raw(b'\xa5' * 100)))
1141 src_pkts.append((Ether(src=self.pg0.remote_mac,
1142 dst=self.pg0.local_mac) /
1143 IP(dst="1.1.1.1", src="20.0.0.%d" % ii) /
1144 UDP(sport=1234, dport=1234) /
1145 Raw(b'\xa5' * 100)))
1147 route_10_0_0_2 = VppIpRoute(self, "10.0.0.2", 32,
1148 [VppRoutePath(self.pg3.remote_ip4,
1149 self.pg3.sw_if_index),
1150 VppRoutePath(self.pg4.remote_ip4,
1151 self.pg4.sw_if_index)])
1152 route_10_0_0_2.add_vpp_config()
1154 route_1_1_1_1 = VppIpRoute(self, "1.1.1.1", 32,
1155 [VppRoutePath("10.0.0.2", 0xffffffff),
1156 VppRoutePath("10.0.0.1", 0xffffffff)])
1157 route_1_1_1_1.add_vpp_config()
1160 # inject the packet on pg0 - expect load-balancing across all 4 paths
1162 self.vapi.cli("clear trace")
1163 self.send_and_expect_load_balancing(self.pg0, port_pkts,
1164 [self.pg1, self.pg2,
1165 self.pg3, self.pg4])
1166 self.send_and_expect_load_balancing(self.pg0, src_pkts,
1167 [self.pg1, self.pg2,
1168 self.pg3, self.pg4])
1171 # bring down pg1 expect LB to adjust to use only those that are pu
1173 self.pg1.link_down()
1175 rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
1176 [self.pg2, self.pg3,
1178 self.assertEqual(len(src_pkts), len(rx))
1181 # bring down pg2 expect LB to adjust to use only those that are pu
1183 self.pg2.link_down()
1185 rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
1186 [self.pg3, self.pg4])
1187 self.assertEqual(len(src_pkts), len(rx))
1190 # bring the links back up - expect LB over all again
1195 rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
1196 [self.pg1, self.pg2,
1197 self.pg3, self.pg4])
1198 self.assertEqual(len(src_pkts), len(rx))
1201 # The same link-up/down but this time admin state
1203 self.pg1.admin_down()
1204 self.pg2.admin_down()
1205 rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
1206 [self.pg3, self.pg4])
1207 self.assertEqual(len(src_pkts), len(rx))
1210 self.pg1.resolve_arp()
1211 self.pg2.resolve_arp()
1212 rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
1213 [self.pg1, self.pg2,
1214 self.pg3, self.pg4])
1215 self.assertEqual(len(src_pkts), len(rx))
1218 # Recursive prefixes
1219 # - testing that 2 stages of load-balancing, no choices
1223 for ii in range(257):
1224 port_pkts.append((Ether(src=self.pg0.remote_mac,
1225 dst=self.pg0.local_mac) /
1226 IP(dst="1.1.1.2", src="20.0.0.2") /
1227 UDP(sport=1234, dport=1234 + ii) /
1228 Raw(b'\xa5' * 100)))
1230 route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32,
1231 [VppRoutePath(self.pg3.remote_ip4,
1232 self.pg3.sw_if_index)])
1233 route_10_0_0_3.add_vpp_config()
1235 route_1_1_1_2 = VppIpRoute(self, "1.1.1.2", 32,
1236 [VppRoutePath("10.0.0.3", 0xffffffff)])
1237 route_1_1_1_2.add_vpp_config()
1240 # inject the packet on pg0 - rx only on via routes output interface
1242 self.vapi.cli("clear trace")
1243 self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg3)
1246 # Add a LB route in the presence of a down link - expect no
1247 # packets over the down link
1249 self.pg3.link_down()
1251 route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32,
1252 [VppRoutePath(self.pg3.remote_ip4,
1253 self.pg3.sw_if_index),
1254 VppRoutePath(self.pg4.remote_ip4,
1255 self.pg4.sw_if_index)])
1256 route_10_0_0_3.add_vpp_config()
1259 for ii in range(257):
1260 port_pkts.append(Ether(src=self.pg0.remote_mac,
1261 dst=self.pg0.local_mac) /
1262 IP(dst="10.0.0.3", src="20.0.0.2") /
1263 UDP(sport=1234, dport=1234 + ii) /
1266 self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg4)
1268 # bring the link back up
1271 rx = self.send_and_expect_load_balancing(self.pg0, port_pkts,
1272 [self.pg3, self.pg4])
1273 self.assertEqual(len(src_pkts), len(rx))
1276 class TestIPVlan0(VppTestCase):
1280 def setUpClass(cls):
1281 super(TestIPVlan0, cls).setUpClass()
1284 def tearDownClass(cls):
1285 super(TestIPVlan0, cls).tearDownClass()
1288 super(TestIPVlan0, self).setUp()
1290 self.create_pg_interfaces(range(2))
1291 mpls_tbl = VppMplsTable(self, 0)
1292 mpls_tbl.add_vpp_config()
1294 for i in self.pg_interfaces:
1301 for i in self.pg_interfaces:
1305 super(TestIPVlan0, self).tearDown()
1307 def test_ip_vlan_0(self):
1310 pkts = (Ether(src=self.pg0.remote_mac,
1311 dst=self.pg0.local_mac) /
1313 IP(dst=self.pg1.remote_ip4,
1314 src=self.pg0.remote_ip4) /
1315 UDP(sport=1234, dport=1234) /
1316 Raw(b'\xa5' * 100)) * NUM_PKTS
1319 # Expect that packets sent on VLAN-0 are forwarded on the
1322 self.send_and_expect(self.pg0, pkts, self.pg1)
1325 class TestIPPunt(VppTestCase):
1326 """ IPv4 Punt Police/Redirect """
1329 def setUpClass(cls):
1330 super(TestIPPunt, cls).setUpClass()
1333 def tearDownClass(cls):
1334 super(TestIPPunt, cls).tearDownClass()
1337 super(TestIPPunt, self).setUp()
1339 self.create_pg_interfaces(range(4))
1341 for i in self.pg_interfaces:
1347 super(TestIPPunt, self).tearDown()
1348 for i in self.pg_interfaces:
1352 def test_ip_punt(self):
1353 """ IP punt police and redirect """
1355 # use UDP packet that have a port we need to explicitly
1356 # register to get punted.
1357 pt_l4 = VppEnum.vl_api_punt_type_t.PUNT_API_TYPE_L4
1358 af_ip4 = VppEnum.vl_api_address_family_t.ADDRESS_IP4
1359 udp_proto = VppEnum.vl_api_ip_proto_t.IP_API_PROTO_UDP
1365 'protocol': udp_proto,
1371 self.vapi.set_punt(is_add=1, punt=punt_udp)
1373 p = (Ether(src=self.pg0.remote_mac,
1374 dst=self.pg0.local_mac) /
1375 IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) /
1376 UDP(sport=1234, dport=1234) /
1382 # Configure a punt redirect via pg1.
1384 nh_addr = self.pg1.remote_ip4
1385 self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
1386 self.pg1.sw_if_index,
1389 self.send_and_expect(self.pg0, pkts, self.pg1)
1394 policer = VppPolicer(self, "ip4-punt", 400, 0, 10, 0, rate_type=1)
1395 policer.add_vpp_config()
1396 self.vapi.ip_punt_police(policer.policer_index)
1398 self.vapi.cli("clear trace")
1399 self.pg0.add_stream(pkts)
1400 self.pg_enable_capture(self.pg_interfaces)
1404 # the number of packet received should be greater than 0,
1405 # but not equal to the number sent, since some were policed
1407 rx = self.pg1._get_capture(1)
1408 self.assertGreater(len(rx), 0)
1409 self.assertLess(len(rx), len(pkts))
1412 # remove the policer. back to full rx
1414 self.vapi.ip_punt_police(policer.policer_index, is_add=0)
1415 policer.remove_vpp_config()
1416 self.send_and_expect(self.pg0, pkts, self.pg1)
1419 # remove the redirect. expect full drop.
1421 self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
1422 self.pg1.sw_if_index,
1425 self.send_and_assert_no_replies(self.pg0, pkts,
1426 "IP no punt config")
1429 # Add a redirect that is not input port selective
1431 self.vapi.ip_punt_redirect(0xffffffff,
1432 self.pg1.sw_if_index,
1434 self.send_and_expect(self.pg0, pkts, self.pg1)
1436 self.vapi.ip_punt_redirect(0xffffffff,
1437 self.pg1.sw_if_index,
1441 def test_ip_punt_dump(self):
1442 """ IP4 punt redirect dump"""
1445 # Configure a punt redirects
1447 nh_address = self.pg3.remote_ip4
1448 self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
1449 self.pg3.sw_if_index,
1451 self.vapi.ip_punt_redirect(self.pg1.sw_if_index,
1452 self.pg3.sw_if_index,
1454 self.vapi.ip_punt_redirect(self.pg2.sw_if_index,
1455 self.pg3.sw_if_index,
1459 # Dump pg0 punt redirects
1461 punts = self.vapi.ip_punt_redirect_dump(self.pg0.sw_if_index)
1463 self.assertEqual(p.punt.rx_sw_if_index, self.pg0.sw_if_index)
1466 # Dump punt redirects for all interfaces
1468 punts = self.vapi.ip_punt_redirect_dump(0xffffffff)
1469 self.assertEqual(len(punts), 3)
1471 self.assertEqual(p.punt.tx_sw_if_index, self.pg3.sw_if_index)
1472 self.assertNotEqual(punts[1].punt.nh, self.pg3.remote_ip4)
1473 self.assertEqual(str(punts[2].punt.nh), '0.0.0.0')
1476 class TestIPDeag(VppTestCase):
1477 """ IPv4 Deaggregate Routes """
1480 def setUpClass(cls):
1481 super(TestIPDeag, cls).setUpClass()
1484 def tearDownClass(cls):
1485 super(TestIPDeag, cls).tearDownClass()
1488 super(TestIPDeag, self).setUp()
1490 self.create_pg_interfaces(range(3))
1492 for i in self.pg_interfaces:
1498 super(TestIPDeag, self).tearDown()
1499 for i in self.pg_interfaces:
1503 def test_ip_deag(self):
1504 """ IP Deag Routes """
1507 # Create a table to be used for:
1508 # 1 - another destination address lookup
1509 # 2 - a source address lookup
1511 table_dst = VppIpTable(self, 1)
1512 table_src = VppIpTable(self, 2)
1513 table_dst.add_vpp_config()
1514 table_src.add_vpp_config()
1517 # Add a route in the default table to point to a deag/
1518 # second lookup in each of these tables
1520 route_to_dst = VppIpRoute(self, "1.1.1.1", 32,
1521 [VppRoutePath("0.0.0.0",
1524 route_to_src = VppIpRoute(
1525 self, "1.1.1.2", 32,
1526 [VppRoutePath("0.0.0.0",
1529 type=FibPathType.FIB_PATH_TYPE_SOURCE_LOOKUP)])
1530 route_to_dst.add_vpp_config()
1531 route_to_src.add_vpp_config()
1534 # packets to these destination are dropped, since they'll
1535 # hit the respective default routes in the second table
1537 p_dst = (Ether(src=self.pg0.remote_mac,
1538 dst=self.pg0.local_mac) /
1539 IP(src="5.5.5.5", dst="1.1.1.1") /
1540 TCP(sport=1234, dport=1234) /
1542 p_src = (Ether(src=self.pg0.remote_mac,
1543 dst=self.pg0.local_mac) /
1544 IP(src="2.2.2.2", dst="1.1.1.2") /
1545 TCP(sport=1234, dport=1234) /
1547 pkts_dst = p_dst * 257
1548 pkts_src = p_src * 257
1550 self.send_and_assert_no_replies(self.pg0, pkts_dst,
1552 self.send_and_assert_no_replies(self.pg0, pkts_src,
1556 # add a route in the dst table to forward via pg1
1558 route_in_dst = VppIpRoute(self, "1.1.1.1", 32,
1559 [VppRoutePath(self.pg1.remote_ip4,
1560 self.pg1.sw_if_index)],
1562 route_in_dst.add_vpp_config()
1564 self.send_and_expect(self.pg0, pkts_dst, self.pg1)
1567 # add a route in the src table to forward via pg2
1569 route_in_src = VppIpRoute(self, "2.2.2.2", 32,
1570 [VppRoutePath(self.pg2.remote_ip4,
1571 self.pg2.sw_if_index)],
1573 route_in_src.add_vpp_config()
1574 self.send_and_expect(self.pg0, pkts_src, self.pg2)
1577 # loop in the lookup DP
1579 route_loop = VppIpRoute(self, "2.2.2.3", 32,
1580 [VppRoutePath("0.0.0.0",
1583 route_loop.add_vpp_config()
1585 p_l = (Ether(src=self.pg0.remote_mac,
1586 dst=self.pg0.local_mac) /
1587 IP(src="2.2.2.4", dst="2.2.2.3") /
1588 TCP(sport=1234, dport=1234) /
1591 self.send_and_assert_no_replies(self.pg0, p_l * 257,
1595 class TestIPInput(VppTestCase):
1596 """ IPv4 Input Exceptions """
1599 def setUpClass(cls):
1600 super(TestIPInput, cls).setUpClass()
1603 def tearDownClass(cls):
1604 super(TestIPInput, cls).tearDownClass()
1607 super(TestIPInput, self).setUp()
1609 self.create_pg_interfaces(range(2))
1611 for i in self.pg_interfaces:
1617 super(TestIPInput, self).tearDown()
1618 for i in self.pg_interfaces:
1622 def test_ip_input(self):
1623 """ IP Input Exceptions """
1625 # i can't find a way in scapy to construct an IP packet
1626 # with a length less than the IP header length
1629 # Packet too short - this is forwarded
1631 p_short = (Ether(src=self.pg0.remote_mac,
1632 dst=self.pg0.local_mac) /
1633 IP(src=self.pg0.remote_ip4,
1634 dst=self.pg1.remote_ip4,
1636 UDP(sport=1234, dport=1234) /
1639 rx = self.send_and_expect(self.pg0, p_short * NUM_PKTS, self.pg1)
1642 # Packet too long - this is dropped
1644 p_long = (Ether(src=self.pg0.remote_mac,
1645 dst=self.pg0.local_mac) /
1646 IP(src=self.pg0.remote_ip4,
1647 dst=self.pg1.remote_ip4,
1649 UDP(sport=1234, dport=1234) /
1652 rx = self.send_and_assert_no_replies(self.pg0, p_long * NUM_PKTS,
1656 # bad chksum - this is dropped
1658 p_chksum = (Ether(src=self.pg0.remote_mac,
1659 dst=self.pg0.local_mac) /
1660 IP(src=self.pg0.remote_ip4,
1661 dst=self.pg1.remote_ip4,
1663 UDP(sport=1234, dport=1234) /
1666 rx = self.send_and_assert_no_replies(self.pg0, p_chksum * NUM_PKTS,
1670 # bad version - this is dropped
1672 p_ver = (Ether(src=self.pg0.remote_mac,
1673 dst=self.pg0.local_mac) /
1674 IP(src=self.pg0.remote_ip4,
1675 dst=self.pg1.remote_ip4,
1677 UDP(sport=1234, dport=1234) /
1680 rx = self.send_and_assert_no_replies(self.pg0, p_ver * NUM_PKTS,
1684 # fragment offset 1 - this is dropped
1686 p_frag = (Ether(src=self.pg0.remote_mac,
1687 dst=self.pg0.local_mac) /
1688 IP(src=self.pg0.remote_ip4,
1689 dst=self.pg1.remote_ip4,
1691 UDP(sport=1234, dport=1234) /
1694 rx = self.send_and_assert_no_replies(self.pg0, p_frag * NUM_PKTS,
1698 # TTL expired packet
1700 p_ttl = (Ether(src=self.pg0.remote_mac,
1701 dst=self.pg0.local_mac) /
1702 IP(src=self.pg0.remote_ip4,
1703 dst=self.pg1.remote_ip4,
1705 UDP(sport=1234, dport=1234) /
1708 rx = self.send_and_expect(self.pg0, p_ttl * NUM_PKTS, self.pg0)
1713 self.assertEqual(icmptypes[icmp.type], "time-exceeded")
1714 self.assertEqual(icmpcodes[icmp.type][icmp.code],
1715 "ttl-zero-during-transit")
1716 self.assertEqual(icmp.src, self.pg0.remote_ip4)
1717 self.assertEqual(icmp.dst, self.pg1.remote_ip4)
1722 p_mtu = (Ether(src=self.pg0.remote_mac,
1723 dst=self.pg0.local_mac) /
1724 IP(src=self.pg0.remote_ip4,
1725 dst=self.pg1.remote_ip4,
1726 ttl=10, flags='DF') /
1727 UDP(sport=1234, dport=1234) /
1728 Raw(b'\xa5' * 2000))
1730 self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [1500, 0, 0, 0])
1732 rx = self.send_and_expect(self.pg0, p_mtu * NUM_PKTS, self.pg0)
1736 self.assertEqual(icmptypes[icmp.type], "dest-unreach")
1737 self.assertEqual(icmpcodes[icmp.type][icmp.code],
1738 "fragmentation-needed")
1739 self.assertEqual(icmp.src, self.pg0.remote_ip4)
1740 self.assertEqual(icmp.dst, self.pg1.remote_ip4)
1742 self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [2500, 0, 0, 0])
1743 rx = self.send_and_expect(self.pg0, p_mtu * NUM_PKTS, self.pg1)
1745 # Reset MTU for subsequent tests
1746 self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [9000, 0, 0, 0])
1749 # source address 0.0.0.0 and 25.255.255.255 and for-us
1751 p_s0 = (Ether(src=self.pg0.remote_mac,
1752 dst=self.pg0.local_mac) /
1754 dst=self.pg0.local_ip4) /
1756 Raw(load=b'\x0a' * 18))
1757 rx = self.send_and_assert_no_replies(self.pg0, p_s0 * 17)
1759 p_s0 = (Ether(src=self.pg0.remote_mac,
1760 dst=self.pg0.local_mac) /
1761 IP(src="255.255.255.255",
1762 dst=self.pg0.local_ip4) /
1764 Raw(load=b'\x0a' * 18))
1765 rx = self.send_and_assert_no_replies(self.pg0, p_s0 * 17)
1768 class TestIPDirectedBroadcast(VppTestCase):
1769 """ IPv4 Directed Broadcast """
1772 def setUpClass(cls):
1773 super(TestIPDirectedBroadcast, cls).setUpClass()
1776 def tearDownClass(cls):
1777 super(TestIPDirectedBroadcast, cls).tearDownClass()
1780 super(TestIPDirectedBroadcast, self).setUp()
1782 self.create_pg_interfaces(range(2))
1784 for i in self.pg_interfaces:
1788 super(TestIPDirectedBroadcast, self).tearDown()
1789 for i in self.pg_interfaces:
1792 def test_ip_input(self):
1793 """ IP Directed Broadcast """
1796 # set the directed broadcast on pg0 first, then config IP4 addresses
1797 # for pg1 directed broadcast is always disabled
1798 self.vapi.sw_interface_set_ip_directed_broadcast(
1799 self.pg0.sw_if_index, 1)
1801 p0 = (Ether(src=self.pg1.remote_mac,
1802 dst=self.pg1.local_mac) /
1804 dst=self.pg0._local_ip4_bcast) /
1805 UDP(sport=1234, dport=1234) /
1806 Raw(b'\xa5' * 2000))
1807 p1 = (Ether(src=self.pg0.remote_mac,
1808 dst=self.pg0.local_mac) /
1810 dst=self.pg1._local_ip4_bcast) /
1811 UDP(sport=1234, dport=1234) /
1812 Raw(b'\xa5' * 2000))
1814 self.pg0.config_ip4()
1815 self.pg0.resolve_arp()
1816 self.pg1.config_ip4()
1817 self.pg1.resolve_arp()
1820 # test packet is L2 broadcast
1822 rx = self.send_and_expect(self.pg1, p0 * NUM_PKTS, self.pg0)
1823 self.assertTrue(rx[0][Ether].dst, "ff:ff:ff:ff:ff:ff")
1825 self.send_and_assert_no_replies(self.pg0, p1 * NUM_PKTS,
1826 "directed broadcast disabled")
1829 # toggle directed broadcast on pg0
1831 self.vapi.sw_interface_set_ip_directed_broadcast(
1832 self.pg0.sw_if_index, 0)
1833 self.send_and_assert_no_replies(self.pg1, p0 * NUM_PKTS,
1834 "directed broadcast disabled")
1836 self.vapi.sw_interface_set_ip_directed_broadcast(
1837 self.pg0.sw_if_index, 1)
1838 rx = self.send_and_expect(self.pg1, p0 * NUM_PKTS, self.pg0)
1840 self.pg0.unconfig_ip4()
1841 self.pg1.unconfig_ip4()
1844 class TestIPLPM(VppTestCase):
1845 """ IPv4 longest Prefix Match """
1848 def setUpClass(cls):
1849 super(TestIPLPM, cls).setUpClass()
1852 def tearDownClass(cls):
1853 super(TestIPLPM, cls).tearDownClass()
1856 super(TestIPLPM, self).setUp()
1858 self.create_pg_interfaces(range(4))
1860 for i in self.pg_interfaces:
1866 super(TestIPLPM, self).tearDown()
1867 for i in self.pg_interfaces:
1871 def test_ip_lpm(self):
1872 """ IP longest Prefix Match """
1874 s_24 = VppIpRoute(self, "10.1.2.0", 24,
1875 [VppRoutePath(self.pg1.remote_ip4,
1876 self.pg1.sw_if_index)])
1877 s_24.add_vpp_config()
1878 s_8 = VppIpRoute(self, "10.0.0.0", 8,
1879 [VppRoutePath(self.pg2.remote_ip4,
1880 self.pg2.sw_if_index)])
1881 s_8.add_vpp_config()
1883 p_8 = (Ether(src=self.pg0.remote_mac,
1884 dst=self.pg0.local_mac) /
1887 UDP(sport=1234, dport=1234) /
1888 Raw(b'\xa5' * 2000))
1889 p_24 = (Ether(src=self.pg0.remote_mac,
1890 dst=self.pg0.local_mac) /
1893 UDP(sport=1234, dport=1234) /
1894 Raw(b'\xa5' * 2000))
1896 self.logger.info(self.vapi.cli("sh ip fib mtrie"))
1897 rx = self.send_and_expect(self.pg0, p_8 * NUM_PKTS, self.pg2)
1898 rx = self.send_and_expect(self.pg0, p_24 * NUM_PKTS, self.pg1)
1901 class TestIPv4Frag(VppTestCase):
1902 """ IPv4 fragmentation """
1905 def setUpClass(cls):
1906 super(TestIPv4Frag, cls).setUpClass()
1908 cls.create_pg_interfaces([0, 1])
1909 cls.src_if = cls.pg0
1910 cls.dst_if = cls.pg1
1912 # setup all interfaces
1913 for i in cls.pg_interfaces:
1919 def tearDownClass(cls):
1920 super(TestIPv4Frag, cls).tearDownClass()
1922 def test_frag_large_packets(self):
1923 """ Fragmentation of large packets """
1925 self.vapi.cli("adjacency counters enable")
1927 p = (Ether(dst=self.src_if.local_mac, src=self.src_if.remote_mac) /
1928 IP(src=self.src_if.remote_ip4, dst=self.dst_if.remote_ip4) /
1929 UDP(sport=1234, dport=5678) / Raw())
1930 self.extend_packet(p, 6000, "abcde")
1931 saved_payload = p[Raw].load
1933 nbr = VppNeighbor(self,
1934 self.dst_if.sw_if_index,
1935 self.dst_if.remote_mac,
1936 self.dst_if.remote_ip4).add_vpp_config()
1938 # Force fragmentation by setting MTU of output interface
1939 # lower than packet size
1940 self.vapi.sw_interface_set_mtu(self.dst_if.sw_if_index,
1943 self.pg_enable_capture()
1944 self.src_if.add_stream(p)
1947 # Expecting 3 fragments because size of created fragments currently
1948 # cannot be larger then VPP buffer size (which is 2048)
1949 packets = self.dst_if.get_capture(3)
1951 # we should show 3 packets thru the neighbor
1952 self.assertEqual(3, nbr.get_stats()['packets'])
1954 # Assume VPP sends the fragments in order
1957 payload_offset = p.frag * 8
1958 if payload_offset > 0:
1959 payload_offset -= 8 # UDP header is not in payload
1960 self.assert_equal(payload_offset, len(payload))
1961 payload += p[Raw].load
1962 self.assert_equal(payload, saved_payload, "payload")
1965 class TestIPReplace(VppTestCase):
1966 """ IPv4 Table Replace """
1969 def setUpClass(cls):
1970 super(TestIPReplace, cls).setUpClass()
1973 def tearDownClass(cls):
1974 super(TestIPReplace, cls).tearDownClass()
1977 super(TestIPReplace, self).setUp()
1979 self.create_pg_interfaces(range(4))
1984 for i in self.pg_interfaces:
1988 i.generate_remote_hosts(2)
1989 self.tables.append(VppIpTable(self, table_id).add_vpp_config())
1993 super(TestIPReplace, self).tearDown()
1994 for i in self.pg_interfaces:
1998 def test_replace(self):
1999 """ IP Table Replace """
2002 links = [self.pg0, self.pg1, self.pg2, self.pg3]
2003 routes = [[], [], [], []]
2005 # load up the tables with some routes
2006 for ii, t in enumerate(self.tables):
2007 for jj in range(N_ROUTES):
2009 self, "10.0.0.%d" % jj, 32,
2010 [VppRoutePath(links[ii].remote_hosts[0].ip4,
2011 links[ii].sw_if_index),
2012 VppRoutePath(links[ii].remote_hosts[1].ip4,
2013 links[ii].sw_if_index)],
2014 table_id=t.table_id).add_vpp_config()
2015 multi = VppIpMRoute(
2017 "239.0.0.%d" % jj, 32,
2018 MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
2019 [VppMRoutePath(self.pg0.sw_if_index,
2020 MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
2021 VppMRoutePath(self.pg1.sw_if_index,
2022 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
2023 VppMRoutePath(self.pg2.sw_if_index,
2024 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
2025 VppMRoutePath(self.pg3.sw_if_index,
2026 MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)],
2027 table_id=t.table_id).add_vpp_config()
2028 routes[ii].append({'uni': uni,
2032 # replace the tables a few times
2035 # replace_begin each table
2036 for t in self.tables:
2039 # all the routes are still there
2040 for ii, t in enumerate(self.tables):
2043 for r in routes[ii]:
2044 self.assertTrue(find_route_in_dump(dump, r['uni'], t))
2045 self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
2047 # redownload the even numbered routes
2048 for ii, t in enumerate(self.tables):
2049 for jj in range(0, N_ROUTES, 2):
2050 routes[ii][jj]['uni'].add_vpp_config()
2051 routes[ii][jj]['multi'].add_vpp_config()
2053 # signal each table replace_end
2054 for t in self.tables:
2057 # we should find the even routes, but not the odd
2058 for ii, t in enumerate(self.tables):
2061 for jj in range(0, N_ROUTES, 2):
2062 self.assertTrue(find_route_in_dump(
2063 dump, routes[ii][jj]['uni'], t))
2064 self.assertTrue(find_mroute_in_dump(
2065 mdump, routes[ii][jj]['multi'], t))
2066 for jj in range(1, N_ROUTES - 1, 2):
2067 self.assertFalse(find_route_in_dump(
2068 dump, routes[ii][jj]['uni'], t))
2069 self.assertFalse(find_mroute_in_dump(
2070 mdump, routes[ii][jj]['multi'], t))
2072 # reload all the routes
2073 for ii, t in enumerate(self.tables):
2074 for r in routes[ii]:
2075 r['uni'].add_vpp_config()
2076 r['multi'].add_vpp_config()
2078 # all the routes are still there
2079 for ii, t in enumerate(self.tables):
2082 for r in routes[ii]:
2083 self.assertTrue(find_route_in_dump(dump, r['uni'], t))
2084 self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
2087 # finally flush the tables for good measure
2089 for t in self.tables:
2091 self.assertEqual(len(t.dump()), 5)
2092 self.assertEqual(len(t.mdump()), 3)
2095 class TestIPCover(VppTestCase):
2096 """ IPv4 Table Cover """
2099 def setUpClass(cls):
2100 super(TestIPCover, cls).setUpClass()
2103 def tearDownClass(cls):
2104 super(TestIPCover, cls).tearDownClass()
2107 super(TestIPCover, self).setUp()
2109 self.create_pg_interfaces(range(4))
2114 for i in self.pg_interfaces:
2118 i.generate_remote_hosts(2)
2119 self.tables.append(VppIpTable(self, table_id).add_vpp_config())
2123 super(TestIPCover, self).tearDown()
2124 for i in self.pg_interfaces:
2128 def test_cover(self):
2129 """ IP Table Cover """
2131 # add a loop back with a /32 prefix
2132 lo = VppLoInterface(self)
2134 a = VppIpInterfaceAddress(self, lo, "127.0.0.1", 32).add_vpp_config()
2136 # add a neighbour that matches the loopback's /32
2137 nbr = VppNeighbor(self,
2140 "127.0.0.1").add_vpp_config()
2142 # add the default route which will be the cover for /32
2143 r = VppIpRoute(self, "0.0.0.0", 0,
2144 [VppRoutePath("127.0.0.1",
2146 register=False).add_vpp_config()
2148 # add/remove/add a longer mask cover
2149 r = VppIpRoute(self, "127.0.0.0", 8,
2150 [VppRoutePath("127.0.0.1",
2151 lo.sw_if_index)]).add_vpp_config()
2152 r.remove_vpp_config()
2155 # remove the default route
2156 r.remove_vpp_config()
2158 if __name__ == '__main__':
2159 unittest.main(testRunner=VppTestRunner)