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 tag_fixme_vpp_workers
15 from framework import VppTestCase, VppTestRunner
17 from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpMRoute, \
18 VppMRoutePath, VppMplsIpBind, \
19 VppMplsTable, VppIpTable, FibPathType, find_route, \
20 VppIpInterfaceAddress, find_route_in_dump, find_mroute_in_dump
21 from vpp_ip import VppIpPuntPolicer, VppIpPuntRedirect, VppIpPathMtu
22 from vpp_sub_interface import VppSubInterface, VppDot1QSubint, VppDot1ADSubint
23 from vpp_papi import VppEnum
24 from vpp_neighbor import VppNeighbor
25 from vpp_lo_interface import VppLoInterface
26 from vpp_policer import VppPolicer, PolicerAction
31 class TestIPv4(VppTestCase):
32 """ IPv4 Test Case """
36 super(TestIPv4, cls).setUpClass()
39 def tearDownClass(cls):
40 super(TestIPv4, cls).tearDownClass()
44 Perform test setup before test case.
47 - create 3 pg interfaces
48 - untagged pg0 interface
49 - Dot1Q subinterface on pg1
50 - Dot1AD subinterface on pg2
52 - put it into UP state
54 - resolve neighbor address using ARP
55 - configure 200 fib entries
57 :ivar list interfaces: pg interfaces and subinterfaces.
58 :ivar dict flows: IPv4 packet flows in test.
60 super(TestIPv4, self).setUp()
62 # create 3 pg interfaces
63 self.create_pg_interfaces(range(3))
65 # create 2 subinterfaces for pg1 and pg2
66 self.sub_interfaces = [
67 VppDot1QSubint(self, self.pg1, 100),
68 VppDot1ADSubint(self, self.pg2, 200, 300, 400)]
70 # packet flows mapping pg0 -> pg1.sub, pg2.sub, etc.
72 self.flows[self.pg0] = [self.pg1.sub_if, self.pg2.sub_if]
73 self.flows[self.pg1.sub_if] = [self.pg0, self.pg2.sub_if]
74 self.flows[self.pg2.sub_if] = [self.pg0, self.pg1.sub_if]
77 self.pg_if_packet_sizes = [64, 1500, 9020]
79 self.interfaces = list(self.pg_interfaces)
80 self.interfaces.extend(self.sub_interfaces)
82 # setup all interfaces
83 for i in self.interfaces:
88 # config 2M FIB entries
91 """Run standard test teardown and log ``show ip arp``."""
92 super(TestIPv4, self).tearDown()
94 def show_commands_at_teardown(self):
95 self.logger.info(self.vapi.cli("show ip4 neighbors"))
96 # info(self.vapi.cli("show ip fib")) # many entries
98 def modify_packet(self, src_if, packet_size, pkt):
99 """Add load, set destination IP and extend packet to required packet
100 size for defined interface.
102 :param VppInterface src_if: Interface to create packet for.
103 :param int packet_size: Required packet size.
104 :param Scapy pkt: Packet to be modified.
106 dst_if_idx = int(packet_size / 10 % 2)
107 dst_if = self.flows[src_if][dst_if_idx]
108 info = self.create_packet_info(src_if, dst_if)
109 payload = self.info_to_payload(info)
111 p[IP].dst = dst_if.remote_ip4
113 if isinstance(src_if, VppSubInterface):
114 p = src_if.add_dot1_layer(p)
115 self.extend_packet(p, packet_size)
119 def create_stream(self, src_if):
120 """Create input packet stream for defined interface.
122 :param VppInterface src_if: Interface to create packet stream for.
124 hdr_ext = 4 if isinstance(src_if, VppSubInterface) else 0
125 pkt_tmpl = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
126 IP(src=src_if.remote_ip4) /
127 UDP(sport=1234, dport=1234))
129 pkts = [self.modify_packet(src_if, i, pkt_tmpl)
130 for i in moves.range(self.pg_if_packet_sizes[0],
131 self.pg_if_packet_sizes[1], 10)]
132 pkts_b = [self.modify_packet(src_if, i, pkt_tmpl)
133 for i in moves.range(self.pg_if_packet_sizes[1] + hdr_ext,
134 self.pg_if_packet_sizes[2] + hdr_ext,
140 def verify_capture(self, dst_if, capture):
141 """Verify captured input packet stream for defined interface.
143 :param VppInterface dst_if: Interface to verify captured packet stream
145 :param list capture: Captured packet stream.
147 self.logger.info("Verifying capture on interface %s" % dst_if.name)
149 for i in self.interfaces:
150 last_info[i.sw_if_index] = None
152 dst_sw_if_index = dst_if.sw_if_index
153 if hasattr(dst_if, 'parent'):
155 for packet in capture:
157 # Check VLAN tags and Ethernet header
158 packet = dst_if.remove_dot1_layer(packet)
159 self.assertTrue(Dot1Q not in packet)
163 payload_info = self.payload_to_info(packet[Raw])
164 packet_index = payload_info.index
165 self.assertEqual(payload_info.dst, dst_sw_if_index)
167 "Got packet on port %s: src=%u (id=%u)" %
168 (dst_if.name, payload_info.src, packet_index))
169 next_info = self.get_next_packet_info_for_interface2(
170 payload_info.src, dst_sw_if_index,
171 last_info[payload_info.src])
172 last_info[payload_info.src] = next_info
173 self.assertTrue(next_info is not None)
174 self.assertEqual(packet_index, next_info.index)
175 saved_packet = next_info.data
176 # Check standard fields
177 self.assertEqual(ip.src, saved_packet[IP].src)
178 self.assertEqual(ip.dst, saved_packet[IP].dst)
179 self.assertEqual(udp.sport, saved_packet[UDP].sport)
180 self.assertEqual(udp.dport, saved_packet[UDP].dport)
182 self.logger.error(ppp("Unexpected or invalid packet:", packet))
184 for i in self.interfaces:
185 remaining_packet = self.get_next_packet_info_for_interface2(
186 i.sw_if_index, dst_sw_if_index, last_info[i.sw_if_index])
187 self.assertTrue(remaining_packet is None,
188 "Interface %s: Packet expected from interface %s "
189 "didn't arrive" % (dst_if.name, i.name))
196 - Create IPv4 stream for pg0 interface
197 - Create IPv4 tagged streams for pg1's and pg2's sub-interface.
198 - Send and verify received packets on each interface.
201 pkts = self.create_stream(self.pg0)
202 self.pg0.add_stream(pkts)
204 for i in self.sub_interfaces:
205 pkts = self.create_stream(i)
206 i.parent.add_stream(pkts)
208 self.pg_enable_capture(self.pg_interfaces)
211 pkts = self.pg0.get_capture()
212 self.verify_capture(self.pg0, pkts)
214 for i in self.sub_interfaces:
215 pkts = i.parent.get_capture()
216 self.verify_capture(i, pkts)
219 class TestIPv4RouteLookup(VppTestCase):
220 """ IPv4 Route Lookup Test Case """
223 def route_lookup(self, prefix, exact):
224 return self.vapi.api(self.vapi.papi.ip_route_lookup,
233 super(TestIPv4RouteLookup, cls).setUpClass()
236 def tearDownClass(cls):
237 super(TestIPv4RouteLookup, cls).tearDownClass()
240 super(TestIPv4RouteLookup, self).setUp()
242 drop_nh = VppRoutePath("127.0.0.1", 0xffffffff,
243 type=FibPathType.FIB_PATH_TYPE_DROP)
246 r = VppIpRoute(self, "1.1.0.0", 16, [drop_nh])
248 self.routes.append(r)
250 r = VppIpRoute(self, "1.1.1.0", 24, [drop_nh])
252 self.routes.append(r)
254 r = VppIpRoute(self, "1.1.1.1", 32, [drop_nh])
256 self.routes.append(r)
259 # Remove the routes we added
260 for r in self.routes:
261 r.remove_vpp_config()
263 super(TestIPv4RouteLookup, self).tearDown()
265 def test_exact_match(self):
266 # Verify we find the host route
267 prefix = "1.1.1.1/32"
268 result = self.route_lookup(prefix, True)
269 assert (prefix == str(result.route.prefix))
271 # Verify we find a middle prefix route
272 prefix = "1.1.1.0/24"
273 result = self.route_lookup(prefix, True)
274 assert (prefix == str(result.route.prefix))
276 # Verify we do not find an available LPM.
277 with self.vapi.assert_negative_api_retval():
278 self.route_lookup("1.1.1.2/32", True)
280 def test_longest_prefix_match(self):
282 lpm_prefix = "1.1.1.0/24"
283 result = self.route_lookup("1.1.1.2/32", False)
284 assert (lpm_prefix == str(result.route.prefix))
286 # Verify we find the exact when not requested
287 result = self.route_lookup(lpm_prefix, False)
288 assert (lpm_prefix == str(result.route.prefix))
290 # Can't seem to delete the default route so no negative LPM test.
293 class TestIPv4IfAddrRoute(VppTestCase):
294 """ IPv4 Interface Addr Route Test Case """
298 super(TestIPv4IfAddrRoute, cls).setUpClass()
301 def tearDownClass(cls):
302 super(TestIPv4IfAddrRoute, cls).tearDownClass()
305 super(TestIPv4IfAddrRoute, self).setUp()
307 # create 1 pg interface
308 self.create_pg_interfaces(range(1))
310 for i in self.pg_interfaces:
316 super(TestIPv4IfAddrRoute, self).tearDown()
317 for i in self.pg_interfaces:
321 def test_ipv4_ifaddrs_same_prefix(self):
322 """ IPv4 Interface Addresses Same Prefix test
326 - Verify no route in FIB for prefix 10.10.10.0/24
327 - Configure IPv4 address 10.10.10.10/24 on an interface
328 - Verify route in FIB for prefix 10.10.10.0/24
329 - Configure IPv4 address 10.10.10.20/24 on an interface
330 - Delete 10.10.10.10/24 from interface
331 - Verify route in FIB for prefix 10.10.10.0/24
332 - Delete 10.10.10.20/24 from interface
333 - Verify no route in FIB for prefix 10.10.10.0/24
336 # create two addresses, verify route not present
337 if_addr1 = VppIpInterfaceAddress(self, self.pg0, "10.10.10.10", 24)
338 if_addr2 = VppIpInterfaceAddress(self, self.pg0, "10.10.10.20", 24)
339 self.assertFalse(if_addr1.query_vpp_config()) # 10.10.10.10/24
340 self.assertFalse(find_route(self, "10.10.10.10", 32))
341 self.assertFalse(find_route(self, "10.10.10.20", 32))
342 self.assertFalse(find_route(self, "10.10.10.255", 32))
343 self.assertFalse(find_route(self, "10.10.10.0", 32))
345 # configure first address, verify route present
346 if_addr1.add_vpp_config()
347 self.assertTrue(if_addr1.query_vpp_config()) # 10.10.10.10/24
348 self.assertTrue(find_route(self, "10.10.10.10", 32))
349 self.assertFalse(find_route(self, "10.10.10.20", 32))
350 self.assertTrue(find_route(self, "10.10.10.255", 32))
351 self.assertTrue(find_route(self, "10.10.10.0", 32))
353 # configure second address, delete first, verify route not removed
354 if_addr2.add_vpp_config()
355 if_addr1.remove_vpp_config()
356 self.assertFalse(if_addr1.query_vpp_config()) # 10.10.10.10/24
357 self.assertTrue(if_addr2.query_vpp_config()) # 10.10.10.20/24
358 self.assertFalse(find_route(self, "10.10.10.10", 32))
359 self.assertTrue(find_route(self, "10.10.10.20", 32))
360 self.assertTrue(find_route(self, "10.10.10.255", 32))
361 self.assertTrue(find_route(self, "10.10.10.0", 32))
363 # delete second address, verify route removed
364 if_addr2.remove_vpp_config()
365 self.assertFalse(if_addr2.query_vpp_config()) # 10.10.10.20/24
366 self.assertFalse(find_route(self, "10.10.10.10", 32))
367 self.assertFalse(find_route(self, "10.10.10.20", 32))
368 self.assertFalse(find_route(self, "10.10.10.255", 32))
369 self.assertFalse(find_route(self, "10.10.10.0", 32))
371 def test_ipv4_ifaddr_route(self):
372 """ IPv4 Interface Address Route test
377 - Configure IPv4 address on loopback
378 - Verify that address is not in the FIB
380 - Verify that address is in the FIB now
381 - Bring loopback down
382 - Verify that address is not in the FIB anymore
384 - Configure IPv4 address on loopback
385 - Verify that address is in the FIB now
388 # create a loopback and configure IPv4
389 loopbacks = self.create_loopback_interfaces(1)
390 lo_if = self.lo_interfaces[0]
392 lo_if.local_ip4_prefix_len = 32
395 # The intf was down when addr was added -> entry not in FIB
396 fib4_dump = self.vapi.ip_route_dump(0)
397 self.assertFalse(lo_if.is_ip4_entry_in_fib_dump(fib4_dump))
399 # When intf is brought up, entry is added
401 fib4_dump = self.vapi.ip_route_dump(0)
402 self.assertTrue(lo_if.is_ip4_entry_in_fib_dump(fib4_dump))
404 # When intf is brought down, entry is removed
406 fib4_dump = self.vapi.ip_route_dump(0)
407 self.assertFalse(lo_if.is_ip4_entry_in_fib_dump(fib4_dump))
409 # Remove addr, bring up interface, re-add -> entry in FIB
413 fib4_dump = self.vapi.ip_route_dump(0)
414 self.assertTrue(lo_if.is_ip4_entry_in_fib_dump(fib4_dump))
416 def test_ipv4_ifaddr_del(self):
417 """ Delete an interface address that does not exist """
419 loopbacks = self.create_loopback_interfaces(1)
420 lo = self.lo_interfaces[0]
426 # try and remove pg0's subnet from lo
428 with self.vapi.assert_negative_api_retval():
429 self.vapi.sw_interface_add_del_address(
430 sw_if_index=lo.sw_if_index,
431 prefix=self.pg0.local_ip4_prefix,
435 class TestICMPEcho(VppTestCase):
436 """ ICMP Echo Test Case """
440 super(TestICMPEcho, cls).setUpClass()
443 def tearDownClass(cls):
444 super(TestICMPEcho, cls).tearDownClass()
447 super(TestICMPEcho, self).setUp()
449 # create 1 pg interface
450 self.create_pg_interfaces(range(1))
452 for i in self.pg_interfaces:
458 super(TestICMPEcho, self).tearDown()
459 for i in self.pg_interfaces:
463 def test_icmp_echo(self):
464 """ VPP replies to ICMP Echo Request
468 - Receive ICMP Echo Request message on pg0 interface.
469 - Check outgoing ICMP Echo Reply message on pg0 interface.
474 icmp_load = b'\x0a' * 18
475 p_echo_request = (Ether(src=self.pg0.remote_mac,
476 dst=self.pg0.local_mac) /
477 IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) /
478 ICMP(id=icmp_id, seq=icmp_seq) /
481 self.pg0.add_stream(p_echo_request)
482 self.pg_enable_capture(self.pg_interfaces)
485 rx = self.pg0.get_capture(1)
491 self.assertEqual(ether.src, self.pg0.local_mac)
492 self.assertEqual(ether.dst, self.pg0.remote_mac)
494 self.assertEqual(ipv4.src, self.pg0.local_ip4)
495 self.assertEqual(ipv4.dst, self.pg0.remote_ip4)
497 self.assertEqual(icmptypes[icmp.type], "echo-reply")
498 self.assertEqual(icmp.id, icmp_id)
499 self.assertEqual(icmp.seq, icmp_seq)
500 self.assertEqual(icmp[Raw].load, icmp_load)
503 class TestIPv4FibCrud(VppTestCase):
504 """ FIB - add/update/delete - ip4 routes
512 ..note:: Python API is too slow to add many routes, needs replacement.
515 def config_fib_many_to_one(self, start_dest_addr, next_hop_addr,
519 :param start_dest_addr:
520 :param next_hop_addr:
522 :return list: added ips with 32 prefix
525 for i in range(count):
526 r = VppIpRoute(self, start_dest_addr % (i + start), 32,
527 [VppRoutePath(next_hop_addr, 0xffffffff)])
532 def unconfig_fib_many_to_one(self, start_dest_addr, next_hop_addr,
536 for i in range(count):
537 r = VppIpRoute(self, start_dest_addr % (i + start), 32,
538 [VppRoutePath(next_hop_addr, 0xffffffff)])
539 r.remove_vpp_config()
543 def create_stream(self, src_if, dst_if, routes, count):
546 for _ in range(count):
547 dst_addr = random.choice(routes).prefix.network_address
548 info = self.create_packet_info(src_if, dst_if)
549 payload = self.info_to_payload(info)
550 p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
551 IP(src=src_if.remote_ip4, dst=str(dst_addr)) /
552 UDP(sport=1234, dport=1234) /
555 self.extend_packet(p, random.choice(self.pg_if_packet_sizes))
560 def _find_ip_match(self, find_in, pkt):
562 if self.payload_to_info(p[Raw]) == \
563 self.payload_to_info(pkt[Raw]):
564 if p[IP].src != pkt[IP].src:
566 if p[IP].dst != pkt[IP].dst:
568 if p[UDP].sport != pkt[UDP].sport:
570 if p[UDP].dport != pkt[UDP].dport:
575 def verify_capture(self, dst_interface, received_pkts, expected_pkts):
576 self.assertEqual(len(received_pkts), len(expected_pkts))
577 to_verify = list(expected_pkts)
578 for p in received_pkts:
579 self.assertEqual(p.src, dst_interface.local_mac)
580 self.assertEqual(p.dst, dst_interface.remote_mac)
581 x = self._find_ip_match(to_verify, p)
583 self.assertListEqual(to_verify, [])
585 def verify_route_dump(self, routes):
587 self.assertTrue(find_route(self,
588 r.prefix.network_address,
591 def verify_not_in_route_dump(self, routes):
593 self.assertFalse(find_route(self,
594 r.prefix.network_address,
600 #. Create and initialize 3 pg interfaces.
601 #. initialize class attributes configured_routes and deleted_routes
602 to store information between tests.
604 super(TestIPv4FibCrud, cls).setUpClass()
607 # create 3 pg interfaces
608 cls.create_pg_interfaces(range(3))
610 cls.interfaces = list(cls.pg_interfaces)
612 # setup all interfaces
613 for i in cls.interfaces:
618 cls.configured_routes = []
619 cls.deleted_routes = []
620 cls.pg_if_packet_sizes = [64, 512, 1518, 9018]
623 super(TestIPv4FibCrud, cls).tearDownClass()
627 def tearDownClass(cls):
628 super(TestIPv4FibCrud, cls).tearDownClass()
631 super(TestIPv4FibCrud, self).setUp()
632 self.reset_packet_infos()
634 self.configured_routes = []
635 self.deleted_routes = []
637 def test_1_add_routes(self):
638 """ Add 1k routes """
640 # add 100 routes check with traffic script.
641 self.configured_routes.extend(self.config_fib_many_to_one(
642 "10.0.0.%d", self.pg0.remote_ip4, 100))
644 self.verify_route_dump(self.configured_routes)
646 self.stream_1 = self.create_stream(
647 self.pg1, self.pg0, self.configured_routes, 100)
648 self.stream_2 = self.create_stream(
649 self.pg2, self.pg0, self.configured_routes, 100)
650 self.pg1.add_stream(self.stream_1)
651 self.pg2.add_stream(self.stream_2)
653 self.pg_enable_capture(self.pg_interfaces)
656 pkts = self.pg0.get_capture(len(self.stream_1) + len(self.stream_2))
657 self.verify_capture(self.pg0, pkts, self.stream_1 + self.stream_2)
659 def test_2_del_routes(self):
660 """ Delete 100 routes
662 - delete 10 routes check with traffic script.
664 # config 1M FIB entries
665 self.configured_routes.extend(self.config_fib_many_to_one(
666 "10.0.0.%d", self.pg0.remote_ip4, 100))
667 self.deleted_routes.extend(self.unconfig_fib_many_to_one(
668 "10.0.0.%d", self.pg0.remote_ip4, 10, start=10))
669 for x in self.deleted_routes:
670 self.configured_routes.remove(x)
672 self.verify_route_dump(self.configured_routes)
674 self.stream_1 = self.create_stream(
675 self.pg1, self.pg0, self.configured_routes, 100)
676 self.stream_2 = self.create_stream(
677 self.pg2, self.pg0, self.configured_routes, 100)
678 self.stream_3 = self.create_stream(
679 self.pg1, self.pg0, self.deleted_routes, 100)
680 self.stream_4 = self.create_stream(
681 self.pg2, self.pg0, self.deleted_routes, 100)
682 self.pg1.add_stream(self.stream_1 + self.stream_3)
683 self.pg2.add_stream(self.stream_2 + self.stream_4)
684 self.pg_enable_capture(self.pg_interfaces)
687 pkts = self.pg0.get_capture(len(self.stream_1) + len(self.stream_2))
688 self.verify_capture(self.pg0, pkts, self.stream_1 + self.stream_2)
690 def test_3_add_new_routes(self):
693 - re-add 5 routes check with traffic script.
694 - add 100 routes check with traffic script.
696 # config 1M FIB entries
697 self.configured_routes.extend(self.config_fib_many_to_one(
698 "10.0.0.%d", self.pg0.remote_ip4, 100))
699 self.deleted_routes.extend(self.unconfig_fib_many_to_one(
700 "10.0.0.%d", self.pg0.remote_ip4, 10, start=10))
701 for x in self.deleted_routes:
702 self.configured_routes.remove(x)
704 tmp = self.config_fib_many_to_one(
705 "10.0.0.%d", self.pg0.remote_ip4, 5, start=10)
706 self.configured_routes.extend(tmp)
708 self.deleted_routes.remove(x)
710 self.configured_routes.extend(self.config_fib_many_to_one(
711 "10.0.1.%d", self.pg0.remote_ip4, 100))
713 self.verify_route_dump(self.configured_routes)
715 self.stream_1 = self.create_stream(
716 self.pg1, self.pg0, self.configured_routes, 300)
717 self.stream_2 = self.create_stream(
718 self.pg2, self.pg0, self.configured_routes, 300)
719 self.stream_3 = self.create_stream(
720 self.pg1, self.pg0, self.deleted_routes, 100)
721 self.stream_4 = self.create_stream(
722 self.pg2, self.pg0, self.deleted_routes, 100)
724 self.pg1.add_stream(self.stream_1 + self.stream_3)
725 self.pg2.add_stream(self.stream_2 + self.stream_4)
726 self.pg_enable_capture(self.pg_interfaces)
729 pkts = self.pg0.get_capture(len(self.stream_1) + len(self.stream_2))
730 self.verify_capture(self.pg0, pkts, self.stream_1 + self.stream_2)
732 # delete 5 routes check with traffic script.
733 # add 100 routes check with traffic script.
734 self.deleted_routes.extend(self.unconfig_fib_many_to_one(
735 "10.0.0.%d", self.pg0.remote_ip4, 15))
736 self.deleted_routes.extend(self.unconfig_fib_many_to_one(
737 "10.0.0.%d", self.pg0.remote_ip4, 85))
738 self.deleted_routes.extend(self.unconfig_fib_many_to_one(
739 "10.0.1.%d", self.pg0.remote_ip4, 100))
740 self.verify_not_in_route_dump(self.deleted_routes)
743 class TestIPNull(VppTestCase):
744 """ IPv4 routes via NULL """
748 super(TestIPNull, cls).setUpClass()
751 def tearDownClass(cls):
752 super(TestIPNull, cls).tearDownClass()
755 super(TestIPNull, self).setUp()
757 # create 2 pg interfaces
758 self.create_pg_interfaces(range(2))
760 for i in self.pg_interfaces:
766 super(TestIPNull, self).tearDown()
767 for i in self.pg_interfaces:
771 def test_ip_null(self):
772 """ IP NULL route """
775 # A route via IP NULL that will reply with ICMP unreachables
777 ip_unreach = VppIpRoute(
778 self, "10.0.0.1", 32,
779 [VppRoutePath("0.0.0.0",
781 type=FibPathType.FIB_PATH_TYPE_ICMP_UNREACH)])
782 ip_unreach.add_vpp_config()
784 p_unreach = (Ether(src=self.pg0.remote_mac,
785 dst=self.pg0.local_mac) /
786 IP(src=self.pg0.remote_ip4, dst="10.0.0.1") /
787 UDP(sport=1234, dport=1234) /
789 self.pg0.add_stream(p_unreach)
790 self.pg_enable_capture(self.pg_interfaces)
793 rx = self.pg0.get_capture(1)
797 self.assertEqual(icmptypes[icmp.type], "dest-unreach")
798 self.assertEqual(icmpcodes[icmp.type][icmp.code], "host-unreachable")
799 self.assertEqual(icmp.src, self.pg0.remote_ip4)
800 self.assertEqual(icmp.dst, "10.0.0.1")
803 # ICMP replies are rate limited. so sit and spin.
808 # A route via IP NULL that will reply with ICMP prohibited
810 ip_prohibit = VppIpRoute(
811 self, "10.0.0.2", 32,
812 [VppRoutePath("0.0.0.0",
814 type=FibPathType.FIB_PATH_TYPE_ICMP_PROHIBIT)])
815 ip_prohibit.add_vpp_config()
817 p_prohibit = (Ether(src=self.pg0.remote_mac,
818 dst=self.pg0.local_mac) /
819 IP(src=self.pg0.remote_ip4, dst="10.0.0.2") /
820 UDP(sport=1234, dport=1234) /
823 self.pg0.add_stream(p_prohibit)
824 self.pg_enable_capture(self.pg_interfaces)
827 rx = self.pg0.get_capture(1)
832 self.assertEqual(icmptypes[icmp.type], "dest-unreach")
833 self.assertEqual(icmpcodes[icmp.type][icmp.code], "host-prohibited")
834 self.assertEqual(icmp.src, self.pg0.remote_ip4)
835 self.assertEqual(icmp.dst, "10.0.0.2")
837 def test_ip_drop(self):
838 """ IP Drop Routes """
840 p = (Ether(src=self.pg0.remote_mac,
841 dst=self.pg0.local_mac) /
842 IP(src=self.pg0.remote_ip4, dst="1.1.1.1") /
843 UDP(sport=1234, dport=1234) /
846 r1 = VppIpRoute(self, "1.1.1.0", 24,
847 [VppRoutePath(self.pg1.remote_ip4,
848 self.pg1.sw_if_index)])
851 rx = self.send_and_expect(self.pg0, p * NUM_PKTS, self.pg1)
854 # insert a more specific as a drop
856 r2 = VppIpRoute(self, "1.1.1.1", 32,
857 [VppRoutePath("0.0.0.0",
859 type=FibPathType.FIB_PATH_TYPE_DROP)])
862 self.send_and_assert_no_replies(self.pg0, p * NUM_PKTS, "Drop Route")
863 r2.remove_vpp_config()
864 rx = self.send_and_expect(self.pg0, p * NUM_PKTS, self.pg1)
867 class TestIPDisabled(VppTestCase):
868 """ IPv4 disabled """
872 super(TestIPDisabled, cls).setUpClass()
875 def tearDownClass(cls):
876 super(TestIPDisabled, cls).tearDownClass()
879 super(TestIPDisabled, self).setUp()
881 # create 2 pg interfaces
882 self.create_pg_interfaces(range(2))
886 self.pg0.config_ip4()
887 self.pg0.resolve_arp()
889 # PG 1 is not IP enabled
893 super(TestIPDisabled, self).tearDown()
894 for i in self.pg_interfaces:
898 def test_ip_disabled(self):
901 MRouteItfFlags = VppEnum.vl_api_mfib_itf_flags_t
902 MRouteEntryFlags = VppEnum.vl_api_mfib_entry_flags_t
906 # one accepting interface, pg0, 2 forwarding interfaces
908 route_232_1_1_1 = VppIpMRoute(
912 MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
913 [VppMRoutePath(self.pg1.sw_if_index,
914 MRouteItfFlags.MFIB_API_ITF_FLAG_ACCEPT),
915 VppMRoutePath(self.pg0.sw_if_index,
916 MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD)])
917 route_232_1_1_1.add_vpp_config()
919 pu = (Ether(src=self.pg1.remote_mac,
920 dst=self.pg1.local_mac) /
921 IP(src="10.10.10.10", dst=self.pg0.remote_ip4) /
922 UDP(sport=1234, dport=1234) /
924 pm = (Ether(src=self.pg1.remote_mac,
925 dst=self.pg1.local_mac) /
926 IP(src="10.10.10.10", dst="232.1.1.1") /
927 UDP(sport=1234, dport=1234) /
931 # PG1 does not forward IP traffic
933 self.send_and_assert_no_replies(self.pg1, pu, "IP disabled")
934 self.send_and_assert_no_replies(self.pg1, pm, "IP disabled")
939 self.pg1.config_ip4()
942 # Now we get packets through
944 self.pg1.add_stream(pu)
945 self.pg_enable_capture(self.pg_interfaces)
947 rx = self.pg0.get_capture(1)
949 self.pg1.add_stream(pm)
950 self.pg_enable_capture(self.pg_interfaces)
952 rx = self.pg0.get_capture(1)
957 self.pg1.unconfig_ip4()
960 # PG1 does not forward IP traffic
962 self.send_and_assert_no_replies(self.pg1, pu, "IP disabled")
963 self.send_and_assert_no_replies(self.pg1, pm, "IP disabled")
966 class TestIPSubNets(VppTestCase):
971 super(TestIPSubNets, cls).setUpClass()
974 def tearDownClass(cls):
975 super(TestIPSubNets, cls).tearDownClass()
978 super(TestIPSubNets, self).setUp()
980 # create a 2 pg interfaces
981 self.create_pg_interfaces(range(2))
983 # pg0 we will use to experiment
986 # pg1 is setup normally
988 self.pg1.config_ip4()
989 self.pg1.resolve_arp()
992 super(TestIPSubNets, self).tearDown()
993 for i in self.pg_interfaces:
996 def test_ip_sub_nets(self):
1000 # Configure a covering route to forward so we know
1001 # when we are dropping
1003 cover_route = VppIpRoute(self, "10.0.0.0", 8,
1004 [VppRoutePath(self.pg1.remote_ip4,
1005 self.pg1.sw_if_index)])
1006 cover_route.add_vpp_config()
1008 p = (Ether(src=self.pg1.remote_mac,
1009 dst=self.pg1.local_mac) /
1010 IP(dst="10.10.10.10", src=self.pg0.local_ip4) /
1011 UDP(sport=1234, dport=1234) /
1014 self.pg1.add_stream(p)
1015 self.pg_enable_capture(self.pg_interfaces)
1017 rx = self.pg1.get_capture(1)
1020 # Configure some non-/24 subnets on an IP interface
1022 ip_addr_n = socket.inet_pton(socket.AF_INET, "10.10.10.10")
1024 self.vapi.sw_interface_add_del_address(
1025 sw_if_index=self.pg0.sw_if_index,
1026 prefix="10.10.10.10/16")
1028 pn = (Ether(src=self.pg1.remote_mac,
1029 dst=self.pg1.local_mac) /
1030 IP(dst="10.10.0.0", src=self.pg0.local_ip4) /
1031 UDP(sport=1234, dport=1234) /
1033 pb = (Ether(src=self.pg1.remote_mac,
1034 dst=self.pg1.local_mac) /
1035 IP(dst="10.10.255.255", src=self.pg0.local_ip4) /
1036 UDP(sport=1234, dport=1234) /
1039 self.send_and_assert_no_replies(self.pg1, pn, "IP Network address")
1040 self.send_and_assert_no_replies(self.pg1, pb, "IP Broadcast address")
1042 # remove the sub-net and we are forwarding via the cover again
1043 self.vapi.sw_interface_add_del_address(
1044 sw_if_index=self.pg0.sw_if_index,
1045 prefix="10.10.10.10/16",
1048 self.pg1.add_stream(pn)
1049 self.pg_enable_capture(self.pg_interfaces)
1051 rx = self.pg1.get_capture(1)
1052 self.pg1.add_stream(pb)
1053 self.pg_enable_capture(self.pg_interfaces)
1055 rx = self.pg1.get_capture(1)
1058 # A /31 is a special case where the 'other-side' is an attached host
1059 # packets to that peer generate ARP requests
1061 ip_addr_n = socket.inet_pton(socket.AF_INET, "10.10.10.10")
1063 self.vapi.sw_interface_add_del_address(
1064 sw_if_index=self.pg0.sw_if_index,
1065 prefix="10.10.10.10/31")
1067 pn = (Ether(src=self.pg1.remote_mac,
1068 dst=self.pg1.local_mac) /
1069 IP(dst="10.10.10.11", src=self.pg0.local_ip4) /
1070 UDP(sport=1234, dport=1234) /
1073 self.pg1.add_stream(pn)
1074 self.pg_enable_capture(self.pg_interfaces)
1076 rx = self.pg0.get_capture(1)
1079 # remove the sub-net and we are forwarding via the cover again
1080 self.vapi.sw_interface_add_del_address(
1081 sw_if_index=self.pg0.sw_if_index,
1082 prefix="10.10.10.10/31", is_add=0)
1084 self.pg1.add_stream(pn)
1085 self.pg_enable_capture(self.pg_interfaces)
1087 rx = self.pg1.get_capture(1)
1090 class TestIPLoadBalance(VppTestCase):
1091 """ IPv4 Load-Balancing """
1094 def setUpClass(cls):
1095 super(TestIPLoadBalance, cls).setUpClass()
1098 def tearDownClass(cls):
1099 super(TestIPLoadBalance, cls).tearDownClass()
1102 super(TestIPLoadBalance, self).setUp()
1104 self.create_pg_interfaces(range(5))
1105 mpls_tbl = VppMplsTable(self, 0)
1106 mpls_tbl.add_vpp_config()
1108 for i in self.pg_interfaces:
1115 for i in self.pg_interfaces:
1119 super(TestIPLoadBalance, self).tearDown()
1121 def send_and_expect_load_balancing(self, input, pkts, outputs):
1122 self.vapi.cli("clear trace")
1123 input.add_stream(pkts)
1124 self.pg_enable_capture(self.pg_interfaces)
1128 rx = oo._get_capture(1)
1129 self.assertNotEqual(0, len(rx))
1133 def send_and_expect_one_itf(self, input, pkts, itf):
1134 input.add_stream(pkts)
1135 self.pg_enable_capture(self.pg_interfaces)
1137 rx = itf.get_capture(len(pkts))
1139 def total_len(self, rxs):
1145 def test_ip_load_balance(self):
1146 """ IP Load-Balancing """
1148 fhc = VppEnum.vl_api_ip_flow_hash_config_t
1149 af = VppEnum.vl_api_address_family_t
1152 # An array of packets that differ only in the destination port
1158 # An array of packets that differ only in the source address
1163 for ii in range(NUM_PKTS):
1164 port_ip_hdr = (IP(dst="10.0.0.1", src="20.0.0.1") /
1165 UDP(sport=1234, dport=1234 + ii) /
1167 port_ip_pkts.append((Ether(src=self.pg0.remote_mac,
1168 dst=self.pg0.local_mac) /
1170 port_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
1171 dst=self.pg0.local_mac) /
1172 MPLS(label=66, ttl=2) /
1175 src_ip_hdr = (IP(dst="10.0.0.1", src="20.0.0.%d" % ii) /
1176 UDP(sport=1234, dport=1234) /
1178 src_ip_pkts.append((Ether(src=self.pg0.remote_mac,
1179 dst=self.pg0.local_mac) /
1181 src_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
1182 dst=self.pg0.local_mac) /
1183 MPLS(label=66, ttl=2) /
1186 route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32,
1187 [VppRoutePath(self.pg1.remote_ip4,
1188 self.pg1.sw_if_index),
1189 VppRoutePath(self.pg2.remote_ip4,
1190 self.pg2.sw_if_index)])
1191 route_10_0_0_1.add_vpp_config()
1193 binding = VppMplsIpBind(self, 66, "10.0.0.1", 32)
1194 binding.add_vpp_config()
1197 # inject the packet on pg0 - expect load-balancing across the 2 paths
1198 # - since the default hash config is to use IP src,dst and port
1200 # We are not going to ensure equal amounts of packets across each link,
1201 # since the hash algorithm is statistical and therefore this can never
1202 # be guaranteed. But with 64 different packets we do expect some
1203 # balancing. So instead just ensure there is traffic on each link.
1205 rx = self.send_and_expect_load_balancing(self.pg0, port_ip_pkts,
1206 [self.pg1, self.pg2])
1207 n_ip_pg0 = len(rx[0])
1208 self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
1209 [self.pg1, self.pg2])
1210 self.send_and_expect_load_balancing(self.pg0, port_mpls_pkts,
1211 [self.pg1, self.pg2])
1212 rx = self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
1213 [self.pg1, self.pg2])
1214 n_mpls_pg0 = len(rx[0])
1217 # change the router ID and expect the distribution changes
1219 self.vapi.set_ip_flow_hash_router_id(router_id=0x11111111)
1221 rx = self.send_and_expect_load_balancing(self.pg0, port_ip_pkts,
1222 [self.pg1, self.pg2])
1223 self.assertNotEqual(n_ip_pg0, len(rx[0]))
1225 rx = self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
1226 [self.pg1, self.pg2])
1227 self.assertNotEqual(n_mpls_pg0, len(rx[0]))
1230 # change the flow hash config so it's only IP src,dst
1231 # - now only the stream with differing source address will
1234 self.vapi.set_ip_flow_hash_v2(
1237 flow_hash_config=(fhc.IP_API_FLOW_HASH_SRC_IP |
1238 fhc.IP_API_FLOW_HASH_DST_IP |
1239 fhc.IP_API_FLOW_HASH_PROTO))
1241 self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
1242 [self.pg1, self.pg2])
1243 self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
1244 [self.pg1, self.pg2])
1246 self.send_and_expect_one_itf(self.pg0, port_ip_pkts, self.pg2)
1249 # change the flow hash config back to defaults
1251 self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1,
1252 proto=1, sport=1, dport=1)
1255 # Recursive prefixes
1256 # - testing that 2 stages of load-balancing occurs and there is no
1257 # polarisation (i.e. only 2 of 4 paths are used)
1262 for ii in range(257):
1263 port_pkts.append((Ether(src=self.pg0.remote_mac,
1264 dst=self.pg0.local_mac) /
1265 IP(dst="1.1.1.1", src="20.0.0.1") /
1266 UDP(sport=1234, dport=1234 + ii) /
1267 Raw(b'\xa5' * 100)))
1268 src_pkts.append((Ether(src=self.pg0.remote_mac,
1269 dst=self.pg0.local_mac) /
1270 IP(dst="1.1.1.1", src="20.0.0.%d" % ii) /
1271 UDP(sport=1234, dport=1234) /
1272 Raw(b'\xa5' * 100)))
1274 route_10_0_0_2 = VppIpRoute(self, "10.0.0.2", 32,
1275 [VppRoutePath(self.pg3.remote_ip4,
1276 self.pg3.sw_if_index),
1277 VppRoutePath(self.pg4.remote_ip4,
1278 self.pg4.sw_if_index)])
1279 route_10_0_0_2.add_vpp_config()
1281 route_1_1_1_1 = VppIpRoute(self, "1.1.1.1", 32,
1282 [VppRoutePath("10.0.0.2", 0xffffffff),
1283 VppRoutePath("10.0.0.1", 0xffffffff)])
1284 route_1_1_1_1.add_vpp_config()
1287 # inject the packet on pg0 - expect load-balancing across all 4 paths
1289 self.vapi.cli("clear trace")
1290 self.send_and_expect_load_balancing(self.pg0, port_pkts,
1291 [self.pg1, self.pg2,
1292 self.pg3, self.pg4])
1293 self.send_and_expect_load_balancing(self.pg0, src_pkts,
1294 [self.pg1, self.pg2,
1295 self.pg3, self.pg4])
1298 # bring down pg1 expect LB to adjust to use only those that are up
1300 self.pg1.link_down()
1302 rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
1303 [self.pg2, self.pg3,
1305 self.assertEqual(len(src_pkts), self.total_len(rx))
1308 # bring down pg2 expect LB to adjust to use only those that are up
1310 self.pg2.link_down()
1312 rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
1313 [self.pg3, self.pg4])
1314 self.assertEqual(len(src_pkts), self.total_len(rx))
1317 # bring the links back up - expect LB over all again
1322 rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
1323 [self.pg1, self.pg2,
1324 self.pg3, self.pg4])
1325 self.assertEqual(len(src_pkts), self.total_len(rx))
1328 # The same link-up/down but this time admin state
1330 self.pg1.admin_down()
1331 self.pg2.admin_down()
1332 rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
1333 [self.pg3, self.pg4])
1334 self.assertEqual(len(src_pkts), self.total_len(rx))
1337 self.pg1.resolve_arp()
1338 self.pg2.resolve_arp()
1339 rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
1340 [self.pg1, self.pg2,
1341 self.pg3, self.pg4])
1342 self.assertEqual(len(src_pkts), self.total_len(rx))
1345 # Recursive prefixes
1346 # - testing that 2 stages of load-balancing, no choices
1350 for ii in range(257):
1351 port_pkts.append((Ether(src=self.pg0.remote_mac,
1352 dst=self.pg0.local_mac) /
1353 IP(dst="1.1.1.2", src="20.0.0.2") /
1354 UDP(sport=1234, dport=1234 + ii) /
1355 Raw(b'\xa5' * 100)))
1357 route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32,
1358 [VppRoutePath(self.pg3.remote_ip4,
1359 self.pg3.sw_if_index)])
1360 route_10_0_0_3.add_vpp_config()
1362 route_1_1_1_2 = VppIpRoute(self, "1.1.1.2", 32,
1363 [VppRoutePath("10.0.0.3", 0xffffffff)])
1364 route_1_1_1_2.add_vpp_config()
1367 # inject the packet on pg0 - rx only on via routes output interface
1369 self.vapi.cli("clear trace")
1370 self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg3)
1373 # Add a LB route in the presence of a down link - expect no
1374 # packets over the down link
1376 self.pg3.link_down()
1378 route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32,
1379 [VppRoutePath(self.pg3.remote_ip4,
1380 self.pg3.sw_if_index),
1381 VppRoutePath(self.pg4.remote_ip4,
1382 self.pg4.sw_if_index)])
1383 route_10_0_0_3.add_vpp_config()
1386 for ii in range(257):
1387 port_pkts.append(Ether(src=self.pg0.remote_mac,
1388 dst=self.pg0.local_mac) /
1389 IP(dst="10.0.0.3", src="20.0.0.2") /
1390 UDP(sport=1234, dport=1234 + ii) /
1393 self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg4)
1395 # bring the link back up
1398 rx = self.send_and_expect_load_balancing(self.pg0, port_pkts,
1399 [self.pg3, self.pg4])
1400 self.assertEqual(len(src_pkts), self.total_len(rx))
1403 class TestIPVlan0(VppTestCase):
1407 def setUpClass(cls):
1408 super(TestIPVlan0, cls).setUpClass()
1411 def tearDownClass(cls):
1412 super(TestIPVlan0, cls).tearDownClass()
1415 super(TestIPVlan0, self).setUp()
1417 self.create_pg_interfaces(range(2))
1418 mpls_tbl = VppMplsTable(self, 0)
1419 mpls_tbl.add_vpp_config()
1421 for i in self.pg_interfaces:
1428 for i in self.pg_interfaces:
1432 super(TestIPVlan0, self).tearDown()
1434 def test_ip_vlan_0(self):
1437 pkts = (Ether(src=self.pg0.remote_mac,
1438 dst=self.pg0.local_mac) /
1440 IP(dst=self.pg1.remote_ip4,
1441 src=self.pg0.remote_ip4) /
1442 UDP(sport=1234, dport=1234) /
1443 Raw(b'\xa5' * 100)) * NUM_PKTS
1446 # Expect that packets sent on VLAN-0 are forwarded on the
1449 self.send_and_expect(self.pg0, pkts, self.pg1)
1452 class IPPuntSetup(object):
1453 """ Setup for IPv4 Punt Police/Redirect """
1455 def punt_setup(self):
1456 self.create_pg_interfaces(range(4))
1458 for i in self.pg_interfaces:
1463 # use UDP packet that have a port we need to explicitly
1464 # register to get punted.
1465 pt_l4 = VppEnum.vl_api_punt_type_t.PUNT_API_TYPE_L4
1466 af_ip4 = VppEnum.vl_api_address_family_t.ADDRESS_IP4
1467 udp_proto = VppEnum.vl_api_ip_proto_t.IP_API_PROTO_UDP
1473 'protocol': udp_proto,
1479 self.vapi.set_punt(is_add=1, punt=punt_udp)
1481 self.pkt = (Ether(src=self.pg0.remote_mac,
1482 dst=self.pg0.local_mac) /
1483 IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) /
1484 UDP(sport=1234, dport=1234) /
1487 def punt_teardown(self):
1488 for i in self.pg_interfaces:
1493 class TestIPPunt(IPPuntSetup, VppTestCase):
1494 """ IPv4 Punt Police/Redirect """
1497 super(TestIPPunt, self).setUp()
1498 super(TestIPPunt, self).punt_setup()
1501 super(TestIPPunt, self).punt_teardown()
1502 super(TestIPPunt, self).tearDown()
1504 def test_ip_punt(self):
1505 """ IP punt police and redirect """
1507 pkts = self.pkt * 1025
1510 # Configure a punt redirect via pg1.
1512 nh_addr = self.pg1.remote_ip4
1513 ip_punt_redirect = VppIpPuntRedirect(self, self.pg0.sw_if_index,
1514 self.pg1.sw_if_index, nh_addr)
1515 ip_punt_redirect.add_vpp_config()
1517 self.send_and_expect(self.pg0, pkts, self.pg1)
1522 policer = VppPolicer(self, "ip4-punt", 400, 0, 10, 0, rate_type=1)
1523 policer.add_vpp_config()
1524 ip_punt_policer = VppIpPuntPolicer(self, policer.policer_index)
1525 ip_punt_policer.add_vpp_config()
1527 self.vapi.cli("clear trace")
1528 self.pg0.add_stream(pkts)
1529 self.pg_enable_capture(self.pg_interfaces)
1533 # the number of packet received should be greater than 0,
1534 # but not equal to the number sent, since some were policed
1536 rx = self.pg1._get_capture(1)
1538 stats = policer.get_stats()
1540 # Single rate policer - expect conform, violate but no exceed
1541 self.assertGreater(stats['conform_packets'], 0)
1542 self.assertEqual(stats['exceed_packets'], 0)
1543 self.assertGreater(stats['violate_packets'], 0)
1545 self.assertGreater(len(rx), 0)
1546 self.assertLess(len(rx), len(pkts))
1549 # remove the policer. back to full rx
1551 ip_punt_policer.remove_vpp_config()
1552 policer.remove_vpp_config()
1553 self.send_and_expect(self.pg0, pkts, self.pg1)
1556 # remove the redirect. expect full drop.
1558 ip_punt_redirect.remove_vpp_config()
1559 self.send_and_assert_no_replies(self.pg0, pkts,
1560 "IP no punt config")
1563 # Add a redirect that is not input port selective
1565 ip_punt_redirect = VppIpPuntRedirect(self, 0xffffffff,
1566 self.pg1.sw_if_index, nh_addr)
1567 ip_punt_redirect.add_vpp_config()
1568 self.send_and_expect(self.pg0, pkts, self.pg1)
1569 ip_punt_redirect.remove_vpp_config()
1571 def test_ip_punt_dump(self):
1572 """ IP4 punt redirect dump"""
1575 # Configure a punt redirects
1577 nh_address = self.pg3.remote_ip4
1578 ipr_03 = VppIpPuntRedirect(self, self.pg0.sw_if_index,
1579 self.pg3.sw_if_index, nh_address)
1580 ipr_13 = VppIpPuntRedirect(self, self.pg1.sw_if_index,
1581 self.pg3.sw_if_index, nh_address)
1582 ipr_23 = VppIpPuntRedirect(self, self.pg2.sw_if_index,
1583 self.pg3.sw_if_index, "0.0.0.0")
1584 ipr_03.add_vpp_config()
1585 ipr_13.add_vpp_config()
1586 ipr_23.add_vpp_config()
1589 # Dump pg0 punt redirects
1591 self.assertTrue(ipr_03.query_vpp_config())
1592 self.assertTrue(ipr_13.query_vpp_config())
1593 self.assertTrue(ipr_23.query_vpp_config())
1596 # Dump punt redirects for all interfaces
1598 punts = self.vapi.ip_punt_redirect_dump(0xffffffff)
1599 self.assertEqual(len(punts), 3)
1601 self.assertEqual(p.punt.tx_sw_if_index, self.pg3.sw_if_index)
1602 self.assertNotEqual(punts[1].punt.nh, self.pg3.remote_ip4)
1603 self.assertEqual(str(punts[2].punt.nh), '0.0.0.0')
1606 class TestIPPuntHandoff(IPPuntSetup, VppTestCase):
1607 """ IPv4 Punt Policer thread handoff """
1608 vpp_worker_count = 2
1611 super(TestIPPuntHandoff, self).setUp()
1612 super(TestIPPuntHandoff, self).punt_setup()
1615 super(TestIPPuntHandoff, self).punt_teardown()
1616 super(TestIPPuntHandoff, self).tearDown()
1618 def test_ip_punt_policer_handoff(self):
1619 """ IP4 punt policer thread handoff """
1620 pkts = self.pkt * NUM_PKTS
1623 # Configure a punt redirect via pg1.
1625 nh_addr = self.pg1.remote_ip4
1626 ip_punt_redirect = VppIpPuntRedirect(self, self.pg0.sw_if_index,
1627 self.pg1.sw_if_index, nh_addr)
1628 ip_punt_redirect.add_vpp_config()
1630 action_tx = PolicerAction(
1631 VppEnum.vl_api_sse2_qos_action_type_t.SSE2_QOS_ACTION_API_TRANSMIT,
1634 # This policer drops no packets, we are just
1635 # testing that they get to the right thread.
1637 policer = VppPolicer(self, "ip4-punt", 400, 0, 10, 0, 1,
1638 0, 0, False, action_tx, action_tx, action_tx)
1639 policer.add_vpp_config()
1640 ip_punt_policer = VppIpPuntPolicer(self, policer.policer_index)
1641 ip_punt_policer.add_vpp_config()
1643 for worker in [0, 1]:
1644 self.send_and_expect(self.pg0, pkts, self.pg1, worker=worker)
1645 self.logger.debug(self.vapi.cli("show trace max 100"))
1647 # Combined stats, all threads
1648 stats = policer.get_stats()
1650 # Single rate policer - expect conform, violate but no exceed
1651 self.assertGreater(stats['conform_packets'], 0)
1652 self.assertEqual(stats['exceed_packets'], 0)
1653 self.assertGreater(stats['violate_packets'], 0)
1655 # Worker 0, should have done all the policing
1656 stats0 = policer.get_stats(worker=0)
1657 self.assertEqual(stats, stats0)
1659 # Worker 1, should have handed everything off
1660 stats1 = policer.get_stats(worker=1)
1661 self.assertEqual(stats1['conform_packets'], 0)
1662 self.assertEqual(stats1['exceed_packets'], 0)
1663 self.assertEqual(stats1['violate_packets'], 0)
1665 # Bind the policer to worker 1 and repeat
1666 policer.bind_vpp_config(1, True)
1667 for worker in [0, 1]:
1668 self.send_and_expect(self.pg0, pkts, self.pg1, worker=worker)
1669 self.logger.debug(self.vapi.cli("show trace max 100"))
1671 # The 2 workers should now have policed the same amount
1672 stats = policer.get_stats()
1673 stats0 = policer.get_stats(worker=0)
1674 stats1 = policer.get_stats(worker=1)
1676 self.assertGreater(stats0['conform_packets'], 0)
1677 self.assertEqual(stats0['exceed_packets'], 0)
1678 self.assertGreater(stats0['violate_packets'], 0)
1680 self.assertGreater(stats1['conform_packets'], 0)
1681 self.assertEqual(stats1['exceed_packets'], 0)
1682 self.assertGreater(stats1['violate_packets'], 0)
1684 self.assertEqual(stats0['conform_packets'] + stats1['conform_packets'],
1685 stats['conform_packets'])
1687 self.assertEqual(stats0['violate_packets'] + stats1['violate_packets'],
1688 stats['violate_packets'])
1690 # Unbind the policer and repeat
1691 policer.bind_vpp_config(1, False)
1692 for worker in [0, 1]:
1693 self.send_and_expect(self.pg0, pkts, self.pg1, worker=worker)
1694 self.logger.debug(self.vapi.cli("show trace max 100"))
1696 # The policer should auto-bind to worker 0 when packets arrive
1697 stats = policer.get_stats()
1698 stats0new = policer.get_stats(worker=0)
1699 stats1new = policer.get_stats(worker=1)
1701 self.assertGreater(stats0new['conform_packets'],
1702 stats0['conform_packets'])
1703 self.assertEqual(stats0new['exceed_packets'], 0)
1704 self.assertGreater(stats0new['violate_packets'],
1705 stats0['violate_packets'])
1707 self.assertEqual(stats1, stats1new)
1712 ip_punt_policer.remove_vpp_config()
1713 policer.remove_vpp_config()
1714 ip_punt_redirect.remove_vpp_config()
1717 class TestIPDeag(VppTestCase):
1718 """ IPv4 Deaggregate Routes """
1721 def setUpClass(cls):
1722 super(TestIPDeag, cls).setUpClass()
1725 def tearDownClass(cls):
1726 super(TestIPDeag, cls).tearDownClass()
1729 super(TestIPDeag, self).setUp()
1731 self.create_pg_interfaces(range(3))
1733 for i in self.pg_interfaces:
1739 super(TestIPDeag, self).tearDown()
1740 for i in self.pg_interfaces:
1744 def test_ip_deag(self):
1745 """ IP Deag Routes """
1748 # Create a table to be used for:
1749 # 1 - another destination address lookup
1750 # 2 - a source address lookup
1752 table_dst = VppIpTable(self, 1)
1753 table_src = VppIpTable(self, 2)
1754 table_dst.add_vpp_config()
1755 table_src.add_vpp_config()
1758 # Add a route in the default table to point to a deag/
1759 # second lookup in each of these tables
1761 route_to_dst = VppIpRoute(self, "1.1.1.1", 32,
1762 [VppRoutePath("0.0.0.0",
1765 route_to_src = VppIpRoute(
1766 self, "1.1.1.2", 32,
1767 [VppRoutePath("0.0.0.0",
1770 type=FibPathType.FIB_PATH_TYPE_SOURCE_LOOKUP)])
1771 route_to_dst.add_vpp_config()
1772 route_to_src.add_vpp_config()
1775 # packets to these destination are dropped, since they'll
1776 # hit the respective default routes in the second table
1778 p_dst = (Ether(src=self.pg0.remote_mac,
1779 dst=self.pg0.local_mac) /
1780 IP(src="5.5.5.5", dst="1.1.1.1") /
1781 TCP(sport=1234, dport=1234) /
1783 p_src = (Ether(src=self.pg0.remote_mac,
1784 dst=self.pg0.local_mac) /
1785 IP(src="2.2.2.2", dst="1.1.1.2") /
1786 TCP(sport=1234, dport=1234) /
1788 pkts_dst = p_dst * 257
1789 pkts_src = p_src * 257
1791 self.send_and_assert_no_replies(self.pg0, pkts_dst,
1793 self.send_and_assert_no_replies(self.pg0, pkts_src,
1797 # add a route in the dst table to forward via pg1
1799 route_in_dst = VppIpRoute(self, "1.1.1.1", 32,
1800 [VppRoutePath(self.pg1.remote_ip4,
1801 self.pg1.sw_if_index)],
1803 route_in_dst.add_vpp_config()
1805 self.send_and_expect(self.pg0, pkts_dst, self.pg1)
1808 # add a route in the src table to forward via pg2
1810 route_in_src = VppIpRoute(self, "2.2.2.2", 32,
1811 [VppRoutePath(self.pg2.remote_ip4,
1812 self.pg2.sw_if_index)],
1814 route_in_src.add_vpp_config()
1815 self.send_and_expect(self.pg0, pkts_src, self.pg2)
1818 # loop in the lookup DP
1820 route_loop = VppIpRoute(self, "2.2.2.3", 32,
1821 [VppRoutePath("0.0.0.0",
1824 route_loop.add_vpp_config()
1826 p_l = (Ether(src=self.pg0.remote_mac,
1827 dst=self.pg0.local_mac) /
1828 IP(src="2.2.2.4", dst="2.2.2.3") /
1829 TCP(sport=1234, dport=1234) /
1832 self.send_and_assert_no_replies(self.pg0, p_l * 257,
1836 class TestIPInput(VppTestCase):
1837 """ IPv4 Input Exceptions """
1840 def setUpClass(cls):
1841 super(TestIPInput, cls).setUpClass()
1844 def tearDownClass(cls):
1845 super(TestIPInput, cls).tearDownClass()
1848 super(TestIPInput, self).setUp()
1850 self.create_pg_interfaces(range(2))
1852 for i in self.pg_interfaces:
1858 super(TestIPInput, self).tearDown()
1859 for i in self.pg_interfaces:
1863 def test_ip_input(self):
1864 """ IP Input Exceptions """
1866 # i can't find a way in scapy to construct an IP packet
1867 # with a length less than the IP header length
1870 # Packet too short - this is forwarded
1872 p_short = (Ether(src=self.pg0.remote_mac,
1873 dst=self.pg0.local_mac) /
1874 IP(src=self.pg0.remote_ip4,
1875 dst=self.pg1.remote_ip4,
1877 UDP(sport=1234, dport=1234) /
1880 rx = self.send_and_expect(self.pg0, p_short * NUM_PKTS, self.pg1)
1883 # Packet too long - this is dropped
1885 p_long = (Ether(src=self.pg0.remote_mac,
1886 dst=self.pg0.local_mac) /
1887 IP(src=self.pg0.remote_ip4,
1888 dst=self.pg1.remote_ip4,
1890 UDP(sport=1234, dport=1234) /
1893 rx = self.send_and_assert_no_replies(self.pg0, p_long * NUM_PKTS,
1897 # bad chksum - this is dropped
1899 p_chksum = (Ether(src=self.pg0.remote_mac,
1900 dst=self.pg0.local_mac) /
1901 IP(src=self.pg0.remote_ip4,
1902 dst=self.pg1.remote_ip4,
1904 UDP(sport=1234, dport=1234) /
1907 rx = self.send_and_assert_no_replies(self.pg0, p_chksum * NUM_PKTS,
1911 # bad version - this is dropped
1913 p_ver = (Ether(src=self.pg0.remote_mac,
1914 dst=self.pg0.local_mac) /
1915 IP(src=self.pg0.remote_ip4,
1916 dst=self.pg1.remote_ip4,
1918 UDP(sport=1234, dport=1234) /
1921 rx = self.send_and_assert_no_replies(self.pg0, p_ver * NUM_PKTS,
1925 # fragment offset 1 - this is dropped
1927 p_frag = (Ether(src=self.pg0.remote_mac,
1928 dst=self.pg0.local_mac) /
1929 IP(src=self.pg0.remote_ip4,
1930 dst=self.pg1.remote_ip4,
1932 UDP(sport=1234, dport=1234) /
1935 rx = self.send_and_assert_no_replies(self.pg0, p_frag * NUM_PKTS,
1939 # TTL expired packet
1941 p_ttl = (Ether(src=self.pg0.remote_mac,
1942 dst=self.pg0.local_mac) /
1943 IP(src=self.pg0.remote_ip4,
1944 dst=self.pg1.remote_ip4,
1946 UDP(sport=1234, dport=1234) /
1949 rx = self.send_and_expect(self.pg0, p_ttl * NUM_PKTS, self.pg0)
1954 self.assertEqual(icmptypes[icmp.type], "time-exceeded")
1955 self.assertEqual(icmpcodes[icmp.type][icmp.code],
1956 "ttl-zero-during-transit")
1957 self.assertEqual(icmp.src, self.pg0.remote_ip4)
1958 self.assertEqual(icmp.dst, self.pg1.remote_ip4)
1963 p_mtu = (Ether(src=self.pg0.remote_mac,
1964 dst=self.pg0.local_mac) /
1965 IP(src=self.pg0.remote_ip4,
1966 dst=self.pg1.remote_ip4,
1967 ttl=10, flags='DF') /
1968 UDP(sport=1234, dport=1234) /
1969 Raw(b'\xa5' * 2000))
1971 self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [1500, 0, 0, 0])
1973 rx = self.send_and_expect(self.pg0, p_mtu * NUM_PKTS, self.pg0)
1977 self.assertEqual(icmptypes[icmp.type], "dest-unreach")
1978 self.assertEqual(icmpcodes[icmp.type][icmp.code],
1979 "fragmentation-needed")
1980 self.assertEqual(icmp.src, self.pg0.remote_ip4)
1981 self.assertEqual(icmp.dst, self.pg1.remote_ip4)
1983 self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [2500, 0, 0, 0])
1984 rx = self.send_and_expect(self.pg0, p_mtu * NUM_PKTS, self.pg1)
1986 # Reset MTU for subsequent tests
1987 self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [9000, 0, 0, 0])
1990 # source address 0.0.0.0 and 25.255.255.255 and for-us
1992 p_s0 = (Ether(src=self.pg0.remote_mac,
1993 dst=self.pg0.local_mac) /
1995 dst=self.pg0.local_ip4) /
1997 Raw(load=b'\x0a' * 18))
1998 rx = self.send_and_assert_no_replies(self.pg0, p_s0 * 17)
2000 p_s0 = (Ether(src=self.pg0.remote_mac,
2001 dst=self.pg0.local_mac) /
2002 IP(src="255.255.255.255",
2003 dst=self.pg0.local_ip4) /
2005 Raw(load=b'\x0a' * 18))
2006 rx = self.send_and_assert_no_replies(self.pg0, p_s0 * 17)
2009 class TestIPDirectedBroadcast(VppTestCase):
2010 """ IPv4 Directed Broadcast """
2013 def setUpClass(cls):
2014 super(TestIPDirectedBroadcast, cls).setUpClass()
2017 def tearDownClass(cls):
2018 super(TestIPDirectedBroadcast, cls).tearDownClass()
2021 super(TestIPDirectedBroadcast, self).setUp()
2023 self.create_pg_interfaces(range(2))
2025 for i in self.pg_interfaces:
2029 super(TestIPDirectedBroadcast, self).tearDown()
2030 for i in self.pg_interfaces:
2033 def test_ip_input(self):
2034 """ IP Directed Broadcast """
2037 # set the directed broadcast on pg0 first, then config IP4 addresses
2038 # for pg1 directed broadcast is always disabled
2039 self.vapi.sw_interface_set_ip_directed_broadcast(
2040 self.pg0.sw_if_index, 1)
2042 p0 = (Ether(src=self.pg1.remote_mac,
2043 dst=self.pg1.local_mac) /
2045 dst=self.pg0._local_ip4_bcast) /
2046 UDP(sport=1234, dport=1234) /
2047 Raw(b'\xa5' * 2000))
2048 p1 = (Ether(src=self.pg0.remote_mac,
2049 dst=self.pg0.local_mac) /
2051 dst=self.pg1._local_ip4_bcast) /
2052 UDP(sport=1234, dport=1234) /
2053 Raw(b'\xa5' * 2000))
2055 self.pg0.config_ip4()
2056 self.pg0.resolve_arp()
2057 self.pg1.config_ip4()
2058 self.pg1.resolve_arp()
2061 # test packet is L2 broadcast
2063 rx = self.send_and_expect(self.pg1, p0 * NUM_PKTS, self.pg0)
2064 self.assertTrue(rx[0][Ether].dst, "ff:ff:ff:ff:ff:ff")
2066 self.send_and_assert_no_replies(self.pg0, p1 * NUM_PKTS,
2067 "directed broadcast disabled")
2070 # toggle directed broadcast on pg0
2072 self.vapi.sw_interface_set_ip_directed_broadcast(
2073 self.pg0.sw_if_index, 0)
2074 self.send_and_assert_no_replies(self.pg1, p0 * NUM_PKTS,
2075 "directed broadcast disabled")
2077 self.vapi.sw_interface_set_ip_directed_broadcast(
2078 self.pg0.sw_if_index, 1)
2079 rx = self.send_and_expect(self.pg1, p0 * NUM_PKTS, self.pg0)
2081 self.pg0.unconfig_ip4()
2082 self.pg1.unconfig_ip4()
2085 class TestIPLPM(VppTestCase):
2086 """ IPv4 longest Prefix Match """
2089 def setUpClass(cls):
2090 super(TestIPLPM, cls).setUpClass()
2093 def tearDownClass(cls):
2094 super(TestIPLPM, cls).tearDownClass()
2097 super(TestIPLPM, self).setUp()
2099 self.create_pg_interfaces(range(4))
2101 for i in self.pg_interfaces:
2107 super(TestIPLPM, self).tearDown()
2108 for i in self.pg_interfaces:
2112 def test_ip_lpm(self):
2113 """ IP longest Prefix Match """
2115 s_24 = VppIpRoute(self, "10.1.2.0", 24,
2116 [VppRoutePath(self.pg1.remote_ip4,
2117 self.pg1.sw_if_index)])
2118 s_24.add_vpp_config()
2119 s_8 = VppIpRoute(self, "10.0.0.0", 8,
2120 [VppRoutePath(self.pg2.remote_ip4,
2121 self.pg2.sw_if_index)])
2122 s_8.add_vpp_config()
2124 p_8 = (Ether(src=self.pg0.remote_mac,
2125 dst=self.pg0.local_mac) /
2128 UDP(sport=1234, dport=1234) /
2129 Raw(b'\xa5' * 2000))
2130 p_24 = (Ether(src=self.pg0.remote_mac,
2131 dst=self.pg0.local_mac) /
2134 UDP(sport=1234, dport=1234) /
2135 Raw(b'\xa5' * 2000))
2137 self.logger.info(self.vapi.cli("sh ip fib mtrie"))
2138 rx = self.send_and_expect(self.pg0, p_8 * NUM_PKTS, self.pg2)
2139 rx = self.send_and_expect(self.pg0, p_24 * NUM_PKTS, self.pg1)
2142 @tag_fixme_vpp_workers
2143 class TestIPv4Frag(VppTestCase):
2144 """ IPv4 fragmentation """
2147 def setUpClass(cls):
2148 super(TestIPv4Frag, cls).setUpClass()
2150 cls.create_pg_interfaces([0, 1])
2151 cls.src_if = cls.pg0
2152 cls.dst_if = cls.pg1
2154 # setup all interfaces
2155 for i in cls.pg_interfaces:
2161 def tearDownClass(cls):
2162 super(TestIPv4Frag, cls).tearDownClass()
2164 def test_frag_large_packets(self):
2165 """ Fragmentation of large packets """
2167 self.vapi.cli("adjacency counters enable")
2169 p = (Ether(dst=self.src_if.local_mac, src=self.src_if.remote_mac) /
2170 IP(src=self.src_if.remote_ip4, dst=self.dst_if.remote_ip4) /
2171 UDP(sport=1234, dport=5678) / Raw())
2172 self.extend_packet(p, 6000, "abcde")
2173 saved_payload = p[Raw].load
2175 nbr = VppNeighbor(self,
2176 self.dst_if.sw_if_index,
2177 self.dst_if.remote_mac,
2178 self.dst_if.remote_ip4).add_vpp_config()
2180 # Force fragmentation by setting MTU of output interface
2181 # lower than packet size
2182 self.vapi.sw_interface_set_mtu(self.dst_if.sw_if_index,
2185 self.pg_enable_capture()
2186 self.src_if.add_stream(p)
2189 # Expecting 3 fragments because size of created fragments currently
2190 # cannot be larger then VPP buffer size (which is 2048)
2191 packets = self.dst_if.get_capture(3)
2193 # we should show 3 packets thru the neighbor
2194 self.assertEqual(3, nbr.get_stats()['packets'])
2196 # Assume VPP sends the fragments in order
2199 payload_offset = p.frag * 8
2200 if payload_offset > 0:
2201 payload_offset -= 8 # UDP header is not in payload
2202 self.assert_equal(payload_offset, len(payload))
2203 payload += p[Raw].load
2204 self.assert_equal(payload, saved_payload, "payload")
2207 class TestIPReplace(VppTestCase):
2208 """ IPv4 Table Replace """
2211 def setUpClass(cls):
2212 super(TestIPReplace, cls).setUpClass()
2215 def tearDownClass(cls):
2216 super(TestIPReplace, cls).tearDownClass()
2219 super(TestIPReplace, self).setUp()
2221 self.create_pg_interfaces(range(4))
2226 for i in self.pg_interfaces:
2230 i.generate_remote_hosts(2)
2231 self.tables.append(VppIpTable(self, table_id).add_vpp_config())
2235 super(TestIPReplace, self).tearDown()
2236 for i in self.pg_interfaces:
2240 def test_replace(self):
2241 """ IP Table Replace """
2243 MRouteItfFlags = VppEnum.vl_api_mfib_itf_flags_t
2244 MRouteEntryFlags = VppEnum.vl_api_mfib_entry_flags_t
2246 links = [self.pg0, self.pg1, self.pg2, self.pg3]
2247 routes = [[], [], [], []]
2249 # load up the tables with some routes
2250 for ii, t in enumerate(self.tables):
2251 for jj in range(N_ROUTES):
2253 self, "10.0.0.%d" % jj, 32,
2254 [VppRoutePath(links[ii].remote_hosts[0].ip4,
2255 links[ii].sw_if_index),
2256 VppRoutePath(links[ii].remote_hosts[1].ip4,
2257 links[ii].sw_if_index)],
2258 table_id=t.table_id).add_vpp_config()
2259 multi = VppIpMRoute(
2261 "239.0.0.%d" % jj, 32,
2262 MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
2263 [VppMRoutePath(self.pg0.sw_if_index,
2264 MRouteItfFlags.MFIB_API_ITF_FLAG_ACCEPT),
2265 VppMRoutePath(self.pg1.sw_if_index,
2266 MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD),
2267 VppMRoutePath(self.pg2.sw_if_index,
2268 MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD),
2269 VppMRoutePath(self.pg3.sw_if_index,
2270 MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD)],
2271 table_id=t.table_id).add_vpp_config()
2272 routes[ii].append({'uni': uni,
2276 # replace the tables a few times
2279 # replace_begin each table
2280 for t in self.tables:
2283 # all the routes are still there
2284 for ii, t in enumerate(self.tables):
2287 for r in routes[ii]:
2288 self.assertTrue(find_route_in_dump(dump, r['uni'], t))
2289 self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
2291 # redownload the even numbered routes
2292 for ii, t in enumerate(self.tables):
2293 for jj in range(0, N_ROUTES, 2):
2294 routes[ii][jj]['uni'].add_vpp_config()
2295 routes[ii][jj]['multi'].add_vpp_config()
2297 # signal each table replace_end
2298 for t in self.tables:
2301 # we should find the even routes, but not the odd
2302 for ii, t in enumerate(self.tables):
2305 for jj in range(0, N_ROUTES, 2):
2306 self.assertTrue(find_route_in_dump(
2307 dump, routes[ii][jj]['uni'], t))
2308 self.assertTrue(find_mroute_in_dump(
2309 mdump, routes[ii][jj]['multi'], t))
2310 for jj in range(1, N_ROUTES - 1, 2):
2311 self.assertFalse(find_route_in_dump(
2312 dump, routes[ii][jj]['uni'], t))
2313 self.assertFalse(find_mroute_in_dump(
2314 mdump, routes[ii][jj]['multi'], t))
2316 # reload all the routes
2317 for ii, t in enumerate(self.tables):
2318 for r in routes[ii]:
2319 r['uni'].add_vpp_config()
2320 r['multi'].add_vpp_config()
2322 # all the routes are still there
2323 for ii, t in enumerate(self.tables):
2326 for r in routes[ii]:
2327 self.assertTrue(find_route_in_dump(dump, r['uni'], t))
2328 self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
2331 # finally flush the tables for good measure
2333 for t in self.tables:
2335 self.assertEqual(len(t.dump()), 5)
2336 self.assertEqual(len(t.mdump()), 3)
2339 class TestIPCover(VppTestCase):
2340 """ IPv4 Table Cover """
2343 def setUpClass(cls):
2344 super(TestIPCover, cls).setUpClass()
2347 def tearDownClass(cls):
2348 super(TestIPCover, cls).tearDownClass()
2351 super(TestIPCover, self).setUp()
2353 self.create_pg_interfaces(range(4))
2358 for i in self.pg_interfaces:
2362 i.generate_remote_hosts(2)
2363 self.tables.append(VppIpTable(self, table_id).add_vpp_config())
2367 super(TestIPCover, self).tearDown()
2368 for i in self.pg_interfaces:
2372 def test_cover(self):
2373 """ IP Table Cover """
2375 # add a loop back with a /32 prefix
2376 lo = VppLoInterface(self)
2378 a = VppIpInterfaceAddress(self, lo, "127.0.0.1", 32).add_vpp_config()
2380 # add a neighbour that matches the loopback's /32
2381 nbr = VppNeighbor(self,
2384 "127.0.0.1").add_vpp_config()
2386 # add the default route which will be the cover for /32
2387 r = VppIpRoute(self, "0.0.0.0", 0,
2388 [VppRoutePath("127.0.0.1",
2390 register=False).add_vpp_config()
2392 # add/remove/add a longer mask cover
2393 r8 = VppIpRoute(self, "127.0.0.0", 8,
2394 [VppRoutePath("127.0.0.1",
2395 lo.sw_if_index)]).add_vpp_config()
2396 r8.remove_vpp_config()
2398 r8.remove_vpp_config()
2400 # remove the default route
2401 r.remove_vpp_config()
2403 # remove the interface prefix
2404 a.remove_vpp_config()
2407 class TestIP4Replace(VppTestCase):
2408 """ IPv4 Interface Address Replace """
2411 def setUpClass(cls):
2412 super(TestIP4Replace, cls).setUpClass()
2415 def tearDownClass(cls):
2416 super(TestIP4Replace, cls).tearDownClass()
2419 super(TestIP4Replace, self).setUp()
2421 self.create_pg_interfaces(range(4))
2423 for i in self.pg_interfaces:
2427 super(TestIP4Replace, self).tearDown()
2428 for i in self.pg_interfaces:
2431 def get_n_pfxs(self, intf):
2432 return len(self.vapi.ip_address_dump(intf.sw_if_index))
2434 def test_replace(self):
2435 """ IP interface address replace """
2437 intf_pfxs = [[], [], [], []]
2439 # add prefixes to each of the interfaces
2440 for i in range(len(self.pg_interfaces)):
2441 intf = self.pg_interfaces[i]
2444 addr = "172.16.%d.1" % intf.sw_if_index
2445 a = VppIpInterfaceAddress(self, intf, addr, 24).add_vpp_config()
2446 intf_pfxs[i].append(a)
2448 # 172.16.x.2/24 - a different address in the same subnet as above
2449 addr = "172.16.%d.2" % intf.sw_if_index
2450 a = VppIpInterfaceAddress(self, intf, addr, 24).add_vpp_config()
2451 intf_pfxs[i].append(a)
2453 # 172.15.x.2/24 - a different address and subnet
2454 addr = "172.15.%d.2" % intf.sw_if_index
2455 a = VppIpInterfaceAddress(self, intf, addr, 24).add_vpp_config()
2456 intf_pfxs[i].append(a)
2458 # a dump should n_address in it
2459 for intf in self.pg_interfaces:
2460 self.assertEqual(self.get_n_pfxs(intf), 3)
2463 # remove all the address thru a replace
2465 self.vapi.sw_interface_address_replace_begin()
2466 self.vapi.sw_interface_address_replace_end()
2467 for intf in self.pg_interfaces:
2468 self.assertEqual(self.get_n_pfxs(intf), 0)
2471 # add all the interface addresses back
2476 for intf in self.pg_interfaces:
2477 self.assertEqual(self.get_n_pfxs(intf), 3)
2480 # replace again, but this time update/re-add the address on the first
2483 self.vapi.sw_interface_address_replace_begin()
2485 for p in intf_pfxs[:2]:
2489 self.vapi.sw_interface_address_replace_end()
2491 # on the first two the address still exist,
2492 # on the other two they do not
2493 for intf in self.pg_interfaces[:2]:
2494 self.assertEqual(self.get_n_pfxs(intf), 3)
2495 for p in intf_pfxs[:2]:
2497 self.assertTrue(v.query_vpp_config())
2498 for intf in self.pg_interfaces[2:]:
2499 self.assertEqual(self.get_n_pfxs(intf), 0)
2502 # add all the interface addresses back on the last two
2504 for p in intf_pfxs[2:]:
2507 for intf in self.pg_interfaces:
2508 self.assertEqual(self.get_n_pfxs(intf), 3)
2511 # replace again, this time add different prefixes on all the interfaces
2513 self.vapi.sw_interface_address_replace_begin()
2516 for intf in self.pg_interfaces:
2518 addr = "172.18.%d.1" % intf.sw_if_index
2519 pfxs.append(VppIpInterfaceAddress(self, intf, addr,
2520 24).add_vpp_config())
2522 self.vapi.sw_interface_address_replace_end()
2524 # only .18 should exist on each interface
2525 for intf in self.pg_interfaces:
2526 self.assertEqual(self.get_n_pfxs(intf), 1)
2528 self.assertTrue(pfx.query_vpp_config())
2533 self.vapi.sw_interface_address_replace_begin()
2534 self.vapi.sw_interface_address_replace_end()
2535 for intf in self.pg_interfaces:
2536 self.assertEqual(self.get_n_pfxs(intf), 0)
2539 # add prefixes to each interface. post-begin add the prefix from
2540 # interface X onto interface Y. this would normally be an error
2541 # since it would generate a 'duplicate address' warning. but in
2542 # this case, since what is newly downloaded is sane, it's ok
2544 for intf in self.pg_interfaces:
2546 addr = "172.18.%d.1" % intf.sw_if_index
2547 VppIpInterfaceAddress(self, intf, addr, 24).add_vpp_config()
2549 self.vapi.sw_interface_address_replace_begin()
2552 for intf in self.pg_interfaces:
2554 addr = "172.18.%d.1" % (intf.sw_if_index + 1)
2555 pfxs.append(VppIpInterfaceAddress(self, intf,
2556 addr, 24).add_vpp_config())
2558 self.vapi.sw_interface_address_replace_end()
2560 self.logger.info(self.vapi.cli("sh int addr"))
2562 for intf in self.pg_interfaces:
2563 self.assertEqual(self.get_n_pfxs(intf), 1)
2565 self.assertTrue(pfx.query_vpp_config())
2568 class TestIPv4PathMTU(VppTestCase):
2569 """ IPv4 Path MTU """
2572 def setUpClass(cls):
2573 super(TestIPv4PathMTU, cls).setUpClass()
2575 cls.create_pg_interfaces(range(2))
2577 # setup all interfaces
2578 for i in cls.pg_interfaces:
2584 def tearDownClass(cls):
2585 super(TestIPv4PathMTU, cls).tearDownClass()
2587 def test_path_mtu(self):
2591 # The goal here is not to test that fragmentation works correctly,
2592 # that's done elsewhere, the intent is to ensure that the Path MTU
2593 # settings are honoured.
2595 self.vapi.cli("adjacency counters enable")
2597 # set the interface MTU to a reasonable value
2598 self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index,
2601 self.pg1.generate_remote_hosts(4)
2603 p_2k = (Ether(dst=self.pg0.local_mac,
2604 src=self.pg0.remote_mac) /
2605 IP(src=self.pg0.remote_ip4,
2606 dst=self.pg1.remote_ip4) /
2607 UDP(sport=1234, dport=5678) /
2609 p_1k = (Ether(dst=self.pg0.local_mac,
2610 src=self.pg0.remote_mac) /
2611 IP(src=self.pg0.remote_ip4,
2612 dst=self.pg1.remote_ip4) /
2613 UDP(sport=1234, dport=5678) /
2616 nbr = VppNeighbor(self,
2617 self.pg1.sw_if_index,
2618 self.pg1.remote_mac,
2619 self.pg1.remote_ip4).add_vpp_config()
2621 # this is now the interface MTU frags
2622 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=2)
2623 self.send_and_expect(self.pg0, [p_1k], self.pg1)
2625 # drop the path MTU for this neighbour to below the interface MTU
2627 pmtu = VppIpPathMtu(self, self.pg1.remote_ip4, 900).add_vpp_config()
2629 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
2630 self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
2632 # print/format the adj delegate
2633 self.logger.info(self.vapi.cli("sh adj 5"))
2635 # increase the path MTU to more than the interface
2636 # expect to use the interface MTU
2639 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=2)
2640 self.send_and_expect(self.pg0, [p_1k], self.pg1)
2642 # go back to an MTU from the path
2643 # wrap the call around mark-n-sweep to enusre updates clear stale
2644 self.vapi.ip_path_mtu_replace_begin()
2646 self.vapi.ip_path_mtu_replace_end()
2648 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
2649 self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
2651 # raise the interface's MTU
2652 # should still use that of the path
2653 self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index,
2655 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
2656 self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
2658 # set path high and interface low
2660 self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index,
2662 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
2663 self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
2665 # remove the path MTU using the mark-n-sweep semantics
2666 self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index,
2668 self.vapi.ip_path_mtu_replace_begin()
2669 self.vapi.ip_path_mtu_replace_end()
2671 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=2)
2672 self.send_and_expect(self.pg0, [p_1k], self.pg1)
2675 # set path MTU for a neighbour that doesn't exist, yet
2677 pmtu2 = VppIpPathMtu(self,
2678 self.pg1.remote_hosts[2].ip4,
2679 900).add_vpp_config()
2681 p_2k = (Ether(dst=self.pg0.local_mac,
2682 src=self.pg0.remote_mac) /
2683 IP(src=self.pg0.remote_ip4,
2684 dst=self.pg1.remote_hosts[2].ip4) /
2685 UDP(sport=1234, dport=5678) /
2687 p_1k = (Ether(dst=self.pg0.local_mac,
2688 src=self.pg0.remote_mac) /
2689 IP(src=self.pg0.remote_ip4,
2690 dst=self.pg1.remote_hosts[2].ip4) /
2691 UDP(sport=1234, dport=5678) /
2694 nbr2 = VppNeighbor(self,
2695 self.pg1.sw_if_index,
2696 self.pg1.remote_hosts[2].mac,
2697 self.pg1.remote_hosts[2].ip4).add_vpp_config()
2699 # should frag to the path MTU
2700 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
2701 self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
2703 # remove and re-add the neighbour
2704 nbr2.remove_vpp_config()
2705 nbr2.add_vpp_config()
2707 # should frag to the path MTU
2708 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
2709 self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
2712 # set PMTUs for many peers
2715 self.pg1.generate_remote_hosts(16)
2716 self.pg1.configure_ipv4_neighbors()
2718 for h in range(N_HOSTS):
2719 pmtu = VppIpPathMtu(self, self.pg1.remote_hosts[h].ip4, 900)
2720 pmtu.add_vpp_config()
2721 self.assertTrue(pmtu.query_vpp_config())
2723 self.logger.info(self.vapi.cli("sh ip pmtu"))
2724 dump = list(self.vapi.vpp.details_iter(self.vapi.ip_path_mtu_get))
2725 self.assertEqual(N_HOSTS, len(dump))
2727 for h in range(N_HOSTS):
2728 p_2k[IP].dst = self.pg1.remote_hosts[h].ip4
2729 p_1k[IP].dst = self.pg1.remote_hosts[h].ip4
2731 # should frag to the path MTU
2732 self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
2733 self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
2736 if __name__ == '__main__':
2737 unittest.main(testRunner=VppTestRunner)