Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 1 | #!/usr/bin/env python |
Paul Vinciguerra | 6e4c6ad | 2018-11-25 10:35:29 -0800 | [diff] [blame] | 2 | import binascii |
Matej Klotton | 16a14cd | 2016-12-07 15:09:13 +0100 | [diff] [blame] | 3 | import random |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 4 | import socket |
Matej Klotton | 16a14cd | 2016-12-07 15:09:13 +0100 | [diff] [blame] | 5 | import unittest |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 6 | |
Paul Vinciguerra | a7427ec | 2019-03-10 10:04:23 -0700 | [diff] [blame] | 7 | import scapy.compat |
Paul Vinciguerra | a6fe463 | 2018-11-25 11:21:50 -0800 | [diff] [blame] | 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 |
| 12 | from six import moves |
| 13 | |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 14 | from framework import VppTestCase, VppTestRunner |
Paul Vinciguerra | a6fe463 | 2018-11-25 11:21:50 -0800 | [diff] [blame] | 15 | from util import ppp |
Neale Ranns | 180279b | 2017-03-16 15:49:09 -0400 | [diff] [blame] | 16 | from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpMRoute, \ |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 17 | VppMRoutePath, MRouteItfFlags, MRouteEntryFlags, VppMplsIpBind, \ |
Ole Troan | 0bcad32 | 2018-12-11 13:04:01 +0100 | [diff] [blame] | 18 | VppMplsTable, VppIpTable |
Paul Vinciguerra | a6fe463 | 2018-11-25 11:21:50 -0800 | [diff] [blame] | 19 | from vpp_sub_interface import VppSubInterface, VppDot1QSubint, VppDot1ADSubint |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 20 | |
| 21 | |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 22 | class TestIPv4(VppTestCase): |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 23 | """ IPv4 Test Case """ |
| 24 | |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 25 | def setUp(self): |
Matej Klotton | 86d87c4 | 2016-11-11 11:38:55 +0100 | [diff] [blame] | 26 | """ |
| 27 | Perform test setup before test case. |
| 28 | |
| 29 | **Config:** |
| 30 | - create 3 pg interfaces |
| 31 | - untagged pg0 interface |
| 32 | - Dot1Q subinterface on pg1 |
| 33 | - Dot1AD subinterface on pg2 |
| 34 | - setup interfaces: |
| 35 | - put it into UP state |
| 36 | - set IPv4 addresses |
| 37 | - resolve neighbor address using ARP |
| 38 | - configure 200 fib entries |
| 39 | |
| 40 | :ivar list interfaces: pg interfaces and subinterfaces. |
| 41 | :ivar dict flows: IPv4 packet flows in test. |
Matej Klotton | 86d87c4 | 2016-11-11 11:38:55 +0100 | [diff] [blame] | 42 | """ |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 43 | super(TestIPv4, self).setUp() |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 44 | |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 45 | # create 3 pg interfaces |
| 46 | self.create_pg_interfaces(range(3)) |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 47 | |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 48 | # create 2 subinterfaces for pg1 and pg2 |
| 49 | self.sub_interfaces = [ |
| 50 | VppDot1QSubint(self, self.pg1, 100), |
| 51 | VppDot1ADSubint(self, self.pg2, 200, 300, 400)] |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 52 | |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 53 | # packet flows mapping pg0 -> pg1.sub, pg2.sub, etc. |
| 54 | self.flows = dict() |
| 55 | self.flows[self.pg0] = [self.pg1.sub_if, self.pg2.sub_if] |
| 56 | self.flows[self.pg1.sub_if] = [self.pg0, self.pg2.sub_if] |
| 57 | self.flows[self.pg2.sub_if] = [self.pg0, self.pg1.sub_if] |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 58 | |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 59 | # packet sizes |
Jan Gelety | e6c78ee | 2018-06-26 12:24:03 +0200 | [diff] [blame] | 60 | self.pg_if_packet_sizes = [64, 1500, 9020] |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 61 | |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 62 | self.interfaces = list(self.pg_interfaces) |
| 63 | self.interfaces.extend(self.sub_interfaces) |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 64 | |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 65 | # setup all interfaces |
| 66 | for i in self.interfaces: |
| 67 | i.admin_up() |
| 68 | i.config_ip4() |
| 69 | i.resolve_arp() |
| 70 | |
Matej Klotton | 86d87c4 | 2016-11-11 11:38:55 +0100 | [diff] [blame] | 71 | # config 2M FIB entries |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 72 | self.config_fib_entries(200) |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 73 | |
| 74 | def tearDown(self): |
Matej Klotton | 86d87c4 | 2016-11-11 11:38:55 +0100 | [diff] [blame] | 75 | """Run standard test teardown and log ``show ip arp``.""" |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 76 | super(TestIPv4, self).tearDown() |
| 77 | if not self.vpp_dead: |
Matej Klotton | 86d87c4 | 2016-11-11 11:38:55 +0100 | [diff] [blame] | 78 | self.logger.info(self.vapi.cli("show ip arp")) |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 79 | # info(self.vapi.cli("show ip fib")) # many entries |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 80 | |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 81 | def config_fib_entries(self, count): |
Matej Klotton | 86d87c4 | 2016-11-11 11:38:55 +0100 | [diff] [blame] | 82 | """For each interface add to the FIB table *count* routes to |
| 83 | "10.0.0.1/32" destination with interface's local address as next-hop |
| 84 | address. |
| 85 | |
| 86 | :param int count: Number of FIB entries. |
| 87 | |
| 88 | - *TODO:* check if the next-hop address shouldn't be remote address |
| 89 | instead of local address. |
| 90 | """ |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 91 | n_int = len(self.interfaces) |
| 92 | percent = 0 |
| 93 | counter = 0.0 |
| 94 | dest_addr = socket.inet_pton(socket.AF_INET, "10.0.0.1") |
| 95 | dest_addr_len = 32 |
| 96 | for i in self.interfaces: |
| 97 | next_hop_address = i.local_ip4n |
| 98 | for j in range(count / n_int): |
Ole Troan | a5b2eec | 2019-03-11 19:23:25 +0100 | [diff] [blame] | 99 | self.vapi.ip_add_del_route(dst_address=dest_addr, |
| 100 | dst_address_length=dest_addr_len, |
| 101 | next_hop_address=next_hop_address) |
Matej Klotton | 86d87c4 | 2016-11-11 11:38:55 +0100 | [diff] [blame] | 102 | counter += 1 |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 103 | if counter / count * 100 > percent: |
Matej Klotton | 86d87c4 | 2016-11-11 11:38:55 +0100 | [diff] [blame] | 104 | self.logger.info("Configure %d FIB entries .. %d%% done" % |
| 105 | (count, percent)) |
| 106 | percent += 1 |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 107 | |
Jan Gelety | e6c78ee | 2018-06-26 12:24:03 +0200 | [diff] [blame] | 108 | def modify_packet(self, src_if, packet_size, pkt): |
| 109 | """Add load, set destination IP and extend packet to required packet |
| 110 | size for defined interface. |
| 111 | |
| 112 | :param VppInterface src_if: Interface to create packet for. |
| 113 | :param int packet_size: Required packet size. |
| 114 | :param Scapy pkt: Packet to be modified. |
| 115 | """ |
| 116 | dst_if_idx = packet_size / 10 % 2 |
| 117 | dst_if = self.flows[src_if][dst_if_idx] |
| 118 | info = self.create_packet_info(src_if, dst_if) |
| 119 | payload = self.info_to_payload(info) |
| 120 | p = pkt/Raw(payload) |
| 121 | p[IP].dst = dst_if.remote_ip4 |
| 122 | info.data = p.copy() |
| 123 | if isinstance(src_if, VppSubInterface): |
| 124 | p = src_if.add_dot1_layer(p) |
| 125 | self.extend_packet(p, packet_size) |
| 126 | |
| 127 | return p |
| 128 | |
| 129 | def create_stream(self, src_if): |
Matej Klotton | 86d87c4 | 2016-11-11 11:38:55 +0100 | [diff] [blame] | 130 | """Create input packet stream for defined interface. |
| 131 | |
| 132 | :param VppInterface src_if: Interface to create packet stream for. |
Matej Klotton | 86d87c4 | 2016-11-11 11:38:55 +0100 | [diff] [blame] | 133 | """ |
Jan Gelety | e6c78ee | 2018-06-26 12:24:03 +0200 | [diff] [blame] | 134 | hdr_ext = 4 if isinstance(src_if, VppSubInterface) else 0 |
| 135 | pkt_tmpl = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / |
| 136 | IP(src=src_if.remote_ip4) / |
| 137 | UDP(sport=1234, dport=1234)) |
| 138 | |
| 139 | pkts = [self.modify_packet(src_if, i, pkt_tmpl) |
Paul Vinciguerra | a6fe463 | 2018-11-25 11:21:50 -0800 | [diff] [blame] | 140 | for i in moves.range(self.pg_if_packet_sizes[0], |
| 141 | self.pg_if_packet_sizes[1], 10)] |
Jan Gelety | e6c78ee | 2018-06-26 12:24:03 +0200 | [diff] [blame] | 142 | pkts_b = [self.modify_packet(src_if, i, pkt_tmpl) |
Paul Vinciguerra | a6fe463 | 2018-11-25 11:21:50 -0800 | [diff] [blame] | 143 | for i in moves.range(self.pg_if_packet_sizes[1] + hdr_ext, |
| 144 | self.pg_if_packet_sizes[2] + hdr_ext, |
| 145 | 50)] |
Jan Gelety | e6c78ee | 2018-06-26 12:24:03 +0200 | [diff] [blame] | 146 | pkts.extend(pkts_b) |
| 147 | |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 148 | return pkts |
| 149 | |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 150 | def verify_capture(self, dst_if, capture): |
Matej Klotton | 86d87c4 | 2016-11-11 11:38:55 +0100 | [diff] [blame] | 151 | """Verify captured input packet stream for defined interface. |
| 152 | |
| 153 | :param VppInterface dst_if: Interface to verify captured packet stream |
Jan Gelety | e6c78ee | 2018-06-26 12:24:03 +0200 | [diff] [blame] | 154 | for. |
Matej Klotton | 86d87c4 | 2016-11-11 11:38:55 +0100 | [diff] [blame] | 155 | :param list capture: Captured packet stream. |
| 156 | """ |
| 157 | self.logger.info("Verifying capture on interface %s" % dst_if.name) |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 158 | last_info = dict() |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 159 | for i in self.interfaces: |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 160 | last_info[i.sw_if_index] = None |
| 161 | is_sub_if = False |
| 162 | dst_sw_if_index = dst_if.sw_if_index |
| 163 | if hasattr(dst_if, 'parent'): |
| 164 | is_sub_if = True |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 165 | for packet in capture: |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 166 | if is_sub_if: |
| 167 | # Check VLAN tags and Ethernet header |
| 168 | packet = dst_if.remove_dot1_layer(packet) |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 169 | self.assertTrue(Dot1Q not in packet) |
| 170 | try: |
| 171 | ip = packet[IP] |
| 172 | udp = packet[UDP] |
Paul Vinciguerra | eaea421 | 2019-03-06 11:58:06 -0800 | [diff] [blame] | 173 | payload_info = self.payload_to_info(packet[Raw]) |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 174 | packet_index = payload_info.index |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 175 | self.assertEqual(payload_info.dst, dst_sw_if_index) |
Klement Sekera | da505f6 | 2017-01-04 12:58:53 +0100 | [diff] [blame] | 176 | self.logger.debug( |
| 177 | "Got packet on port %s: src=%u (id=%u)" % |
| 178 | (dst_if.name, payload_info.src, packet_index)) |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 179 | next_info = self.get_next_packet_info_for_interface2( |
| 180 | payload_info.src, dst_sw_if_index, |
| 181 | last_info[payload_info.src]) |
| 182 | last_info[payload_info.src] = next_info |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 183 | self.assertTrue(next_info is not None) |
| 184 | self.assertEqual(packet_index, next_info.index) |
| 185 | saved_packet = next_info.data |
| 186 | # Check standard fields |
| 187 | self.assertEqual(ip.src, saved_packet[IP].src) |
| 188 | self.assertEqual(ip.dst, saved_packet[IP].dst) |
| 189 | self.assertEqual(udp.sport, saved_packet[UDP].sport) |
| 190 | self.assertEqual(udp.dport, saved_packet[UDP].dport) |
| 191 | except: |
Klement Sekera | 7bb873a | 2016-11-18 07:38:42 +0100 | [diff] [blame] | 192 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 193 | raise |
| 194 | for i in self.interfaces: |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 195 | remaining_packet = self.get_next_packet_info_for_interface2( |
| 196 | i.sw_if_index, dst_sw_if_index, last_info[i.sw_if_index]) |
Klement Sekera | 7bb873a | 2016-11-18 07:38:42 +0100 | [diff] [blame] | 197 | self.assertTrue(remaining_packet is None, |
| 198 | "Interface %s: Packet expected from interface %s " |
| 199 | "didn't arrive" % (dst_if.name, i.name)) |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 200 | |
| 201 | def test_fib(self): |
Matej Klotton | 86d87c4 | 2016-11-11 11:38:55 +0100 | [diff] [blame] | 202 | """ IPv4 FIB test |
| 203 | |
| 204 | Test scenario: |
| 205 | |
| 206 | - Create IPv4 stream for pg0 interface |
Jan Gelety | e6c78ee | 2018-06-26 12:24:03 +0200 | [diff] [blame] | 207 | - Create IPv4 tagged streams for pg1's and pg2's sub-interface. |
Matej Klotton | 86d87c4 | 2016-11-11 11:38:55 +0100 | [diff] [blame] | 208 | - Send and verify received packets on each interface. |
| 209 | """ |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 210 | |
Jan Gelety | e6c78ee | 2018-06-26 12:24:03 +0200 | [diff] [blame] | 211 | pkts = self.create_stream(self.pg0) |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 212 | self.pg0.add_stream(pkts) |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 213 | |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 214 | for i in self.sub_interfaces: |
Jan Gelety | e6c78ee | 2018-06-26 12:24:03 +0200 | [diff] [blame] | 215 | pkts = self.create_stream(i) |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 216 | i.parent.add_stream(pkts) |
| 217 | |
| 218 | self.pg_enable_capture(self.pg_interfaces) |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 219 | self.pg_start() |
| 220 | |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 221 | pkts = self.pg0.get_capture() |
| 222 | self.verify_capture(self.pg0, pkts) |
| 223 | |
| 224 | for i in self.sub_interfaces: |
| 225 | pkts = i.parent.get_capture() |
| 226 | self.verify_capture(i, pkts) |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 227 | |
| 228 | |
Jan Gelety | e6c78ee | 2018-06-26 12:24:03 +0200 | [diff] [blame] | 229 | class TestICMPEcho(VppTestCase): |
| 230 | """ ICMP Echo Test Case """ |
| 231 | |
| 232 | def setUp(self): |
| 233 | super(TestICMPEcho, self).setUp() |
| 234 | |
| 235 | # create 1 pg interface |
| 236 | self.create_pg_interfaces(range(1)) |
| 237 | |
| 238 | for i in self.pg_interfaces: |
| 239 | i.admin_up() |
| 240 | i.config_ip4() |
| 241 | i.resolve_arp() |
| 242 | |
| 243 | def tearDown(self): |
| 244 | super(TestICMPEcho, self).tearDown() |
| 245 | for i in self.pg_interfaces: |
| 246 | i.unconfig_ip4() |
| 247 | i.admin_down() |
| 248 | |
| 249 | def test_icmp_echo(self): |
| 250 | """ VPP replies to ICMP Echo Request |
| 251 | |
| 252 | Test scenario: |
| 253 | |
| 254 | - Receive ICMP Echo Request message on pg0 interface. |
| 255 | - Check outgoing ICMP Echo Reply message on pg0 interface. |
| 256 | """ |
| 257 | |
| 258 | icmp_id = 0xb |
| 259 | icmp_seq = 5 |
| 260 | icmp_load = '\x0a' * 18 |
| 261 | p_echo_request = (Ether(src=self.pg0.remote_mac, |
| 262 | dst=self.pg0.local_mac) / |
| 263 | IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) / |
| 264 | ICMP(id=icmp_id, seq=icmp_seq) / |
| 265 | Raw(load=icmp_load)) |
| 266 | |
| 267 | self.pg0.add_stream(p_echo_request) |
| 268 | self.pg_enable_capture(self.pg_interfaces) |
| 269 | self.pg_start() |
| 270 | |
| 271 | rx = self.pg0.get_capture(1) |
| 272 | rx = rx[0] |
| 273 | ether = rx[Ether] |
| 274 | ipv4 = rx[IP] |
| 275 | icmp = rx[ICMP] |
| 276 | |
| 277 | self.assertEqual(ether.src, self.pg0.local_mac) |
| 278 | self.assertEqual(ether.dst, self.pg0.remote_mac) |
| 279 | |
| 280 | self.assertEqual(ipv4.src, self.pg0.local_ip4) |
| 281 | self.assertEqual(ipv4.dst, self.pg0.remote_ip4) |
| 282 | |
| 283 | self.assertEqual(icmptypes[icmp.type], "echo-reply") |
| 284 | self.assertEqual(icmp.id, icmp_id) |
| 285 | self.assertEqual(icmp.seq, icmp_seq) |
| 286 | self.assertEqual(icmp[Raw].load, icmp_load) |
| 287 | |
| 288 | |
Matej Klotton | 16a14cd | 2016-12-07 15:09:13 +0100 | [diff] [blame] | 289 | class TestIPv4FibCrud(VppTestCase): |
| 290 | """ FIB - add/update/delete - ip4 routes |
| 291 | |
| 292 | Test scenario: |
| 293 | - add 1k, |
| 294 | - del 100, |
| 295 | - add new 1k, |
| 296 | - del 1.5k |
| 297 | |
Klement Sekera | da505f6 | 2017-01-04 12:58:53 +0100 | [diff] [blame] | 298 | ..note:: Python API is too slow to add many routes, needs replacement. |
Matej Klotton | 16a14cd | 2016-12-07 15:09:13 +0100 | [diff] [blame] | 299 | """ |
| 300 | |
| 301 | def config_fib_many_to_one(self, start_dest_addr, next_hop_addr, count): |
| 302 | """ |
| 303 | |
| 304 | :param start_dest_addr: |
| 305 | :param next_hop_addr: |
| 306 | :param count: |
| 307 | :return list: added ips with 32 prefix |
| 308 | """ |
| 309 | added_ips = [] |
Paul Vinciguerra | 6e4c6ad | 2018-11-25 10:35:29 -0800 | [diff] [blame] | 310 | dest_addr = int(binascii.hexlify(socket.inet_pton(socket.AF_INET, |
| 311 | start_dest_addr)), 16) |
Matej Klotton | 16a14cd | 2016-12-07 15:09:13 +0100 | [diff] [blame] | 312 | dest_addr_len = 32 |
| 313 | n_next_hop_addr = socket.inet_pton(socket.AF_INET, next_hop_addr) |
| 314 | for _ in range(count): |
Paul Vinciguerra | a7427ec | 2019-03-10 10:04:23 -0700 | [diff] [blame] | 315 | n_dest_addr = binascii.unhexlify('{:08x}'.format(dest_addr)) |
Ole Troan | a5b2eec | 2019-03-11 19:23:25 +0100 | [diff] [blame] | 316 | self.vapi.ip_add_del_route(dst_address=n_dest_addr, |
| 317 | dst_address_length=dest_addr_len, |
| 318 | next_hop_address=n_next_hop_addr) |
Matej Klotton | 16a14cd | 2016-12-07 15:09:13 +0100 | [diff] [blame] | 319 | added_ips.append(socket.inet_ntoa(n_dest_addr)) |
| 320 | dest_addr += 1 |
| 321 | return added_ips |
| 322 | |
| 323 | def unconfig_fib_many_to_one(self, start_dest_addr, next_hop_addr, count): |
| 324 | |
| 325 | removed_ips = [] |
Paul Vinciguerra | 6e4c6ad | 2018-11-25 10:35:29 -0800 | [diff] [blame] | 326 | dest_addr = int(binascii.hexlify(socket.inet_pton(socket.AF_INET, |
| 327 | start_dest_addr)), 16) |
Matej Klotton | 16a14cd | 2016-12-07 15:09:13 +0100 | [diff] [blame] | 328 | dest_addr_len = 32 |
| 329 | n_next_hop_addr = socket.inet_pton(socket.AF_INET, next_hop_addr) |
| 330 | for _ in range(count): |
Paul Vinciguerra | a7427ec | 2019-03-10 10:04:23 -0700 | [diff] [blame] | 331 | n_dest_addr = binascii.unhexlify('{:08x}'.format(dest_addr)) |
Ole Troan | a5b2eec | 2019-03-11 19:23:25 +0100 | [diff] [blame] | 332 | self.vapi.ip_add_del_route(dst_address=n_dest_addr, |
| 333 | dst_address_length=dest_addr_len, |
| 334 | next_hop_address=n_next_hop_addr, |
| 335 | is_add=0) |
Matej Klotton | 16a14cd | 2016-12-07 15:09:13 +0100 | [diff] [blame] | 336 | removed_ips.append(socket.inet_ntoa(n_dest_addr)) |
| 337 | dest_addr += 1 |
| 338 | return removed_ips |
| 339 | |
| 340 | def create_stream(self, src_if, dst_if, dst_ips, count): |
| 341 | pkts = [] |
| 342 | |
| 343 | for _ in range(count): |
| 344 | dst_addr = random.choice(dst_ips) |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 345 | info = self.create_packet_info(src_if, dst_if) |
Matej Klotton | 16a14cd | 2016-12-07 15:09:13 +0100 | [diff] [blame] | 346 | payload = self.info_to_payload(info) |
| 347 | p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / |
| 348 | IP(src=src_if.remote_ip4, dst=dst_addr) / |
| 349 | UDP(sport=1234, dport=1234) / |
| 350 | Raw(payload)) |
| 351 | info.data = p.copy() |
Matej Klotton | 16a14cd | 2016-12-07 15:09:13 +0100 | [diff] [blame] | 352 | self.extend_packet(p, random.choice(self.pg_if_packet_sizes)) |
| 353 | pkts.append(p) |
| 354 | |
| 355 | return pkts |
| 356 | |
| 357 | def _find_ip_match(self, find_in, pkt): |
| 358 | for p in find_in: |
Paul Vinciguerra | eaea421 | 2019-03-06 11:58:06 -0800 | [diff] [blame] | 359 | if self.payload_to_info(p[Raw]) == \ |
| 360 | self.payload_to_info(pkt[Raw]): |
Matej Klotton | 16a14cd | 2016-12-07 15:09:13 +0100 | [diff] [blame] | 361 | if p[IP].src != pkt[IP].src: |
| 362 | break |
| 363 | if p[IP].dst != pkt[IP].dst: |
| 364 | break |
| 365 | if p[UDP].sport != pkt[UDP].sport: |
| 366 | break |
| 367 | if p[UDP].dport != pkt[UDP].dport: |
| 368 | break |
| 369 | return p |
| 370 | return None |
| 371 | |
| 372 | @staticmethod |
| 373 | def _match_route_detail(route_detail, ip, address_length=32, table_id=0): |
| 374 | if route_detail.address == socket.inet_pton(socket.AF_INET, ip): |
| 375 | if route_detail.table_id != table_id: |
| 376 | return False |
| 377 | elif route_detail.address_length != address_length: |
| 378 | return False |
| 379 | else: |
| 380 | return True |
| 381 | else: |
| 382 | return False |
| 383 | |
| 384 | def verify_capture(self, dst_interface, received_pkts, expected_pkts): |
| 385 | self.assertEqual(len(received_pkts), len(expected_pkts)) |
| 386 | to_verify = list(expected_pkts) |
| 387 | for p in received_pkts: |
| 388 | self.assertEqual(p.src, dst_interface.local_mac) |
| 389 | self.assertEqual(p.dst, dst_interface.remote_mac) |
| 390 | x = self._find_ip_match(to_verify, p) |
| 391 | to_verify.remove(x) |
| 392 | self.assertListEqual(to_verify, []) |
| 393 | |
| 394 | def verify_route_dump(self, fib_dump, ips): |
| 395 | |
| 396 | def _ip_in_route_dump(ip, fib_dump): |
| 397 | return next((route for route in fib_dump |
| 398 | if self._match_route_detail(route, ip)), |
| 399 | False) |
| 400 | |
| 401 | for ip in ips: |
| 402 | self.assertTrue(_ip_in_route_dump(ip, fib_dump), |
Paul Vinciguerra | ea2450f | 2019-03-06 08:23:58 -0800 | [diff] [blame] | 403 | 'IP {!s} is not in fib dump.'.format(ip)) |
Matej Klotton | 16a14cd | 2016-12-07 15:09:13 +0100 | [diff] [blame] | 404 | |
| 405 | def verify_not_in_route_dump(self, fib_dump, ips): |
| 406 | |
| 407 | def _ip_in_route_dump(ip, fib_dump): |
| 408 | return next((route for route in fib_dump |
| 409 | if self._match_route_detail(route, ip)), |
| 410 | False) |
| 411 | |
| 412 | for ip in ips: |
| 413 | self.assertFalse(_ip_in_route_dump(ip, fib_dump), |
Paul Vinciguerra | ea2450f | 2019-03-06 08:23:58 -0800 | [diff] [blame] | 414 | 'IP {!s} is in fib dump.'.format(ip)) |
Matej Klotton | 16a14cd | 2016-12-07 15:09:13 +0100 | [diff] [blame] | 415 | |
| 416 | @classmethod |
| 417 | def setUpClass(cls): |
| 418 | """ |
| 419 | #. Create and initialize 3 pg interfaces. |
| 420 | #. initialize class attributes configured_routes and deleted_routes |
| 421 | to store information between tests. |
| 422 | """ |
| 423 | super(TestIPv4FibCrud, cls).setUpClass() |
| 424 | |
| 425 | try: |
| 426 | # create 3 pg interfaces |
| 427 | cls.create_pg_interfaces(range(3)) |
| 428 | |
| 429 | cls.interfaces = list(cls.pg_interfaces) |
| 430 | |
| 431 | # setup all interfaces |
| 432 | for i in cls.interfaces: |
| 433 | i.admin_up() |
| 434 | i.config_ip4() |
| 435 | i.resolve_arp() |
| 436 | |
| 437 | cls.configured_routes = [] |
| 438 | cls.deleted_routes = [] |
| 439 | cls.pg_if_packet_sizes = [64, 512, 1518, 9018] |
| 440 | |
| 441 | except Exception: |
| 442 | super(TestIPv4FibCrud, cls).tearDownClass() |
| 443 | raise |
| 444 | |
| 445 | def setUp(self): |
| 446 | super(TestIPv4FibCrud, self).setUp() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 447 | self.reset_packet_infos() |
Matej Klotton | 16a14cd | 2016-12-07 15:09:13 +0100 | [diff] [blame] | 448 | |
Paul Vinciguerra | 4eed747 | 2018-12-16 14:52:36 -0800 | [diff] [blame] | 449 | self.configured_routes = [] |
| 450 | self.deleted_routes = [] |
| 451 | |
Matej Klotton | 16a14cd | 2016-12-07 15:09:13 +0100 | [diff] [blame] | 452 | def test_1_add_routes(self): |
| 453 | """ Add 1k routes |
| 454 | |
| 455 | - add 100 routes check with traffic script. |
| 456 | """ |
| 457 | # config 1M FIB entries |
| 458 | self.configured_routes.extend(self.config_fib_many_to_one( |
| 459 | "10.0.0.0", self.pg0.remote_ip4, 100)) |
| 460 | |
| 461 | fib_dump = self.vapi.ip_fib_dump() |
| 462 | self.verify_route_dump(fib_dump, self.configured_routes) |
| 463 | |
| 464 | self.stream_1 = self.create_stream( |
| 465 | self.pg1, self.pg0, self.configured_routes, 100) |
| 466 | self.stream_2 = self.create_stream( |
| 467 | self.pg2, self.pg0, self.configured_routes, 100) |
| 468 | self.pg1.add_stream(self.stream_1) |
| 469 | self.pg2.add_stream(self.stream_2) |
| 470 | |
| 471 | self.pg_enable_capture(self.pg_interfaces) |
| 472 | self.pg_start() |
| 473 | |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 474 | pkts = self.pg0.get_capture(len(self.stream_1) + len(self.stream_2)) |
Matej Klotton | 16a14cd | 2016-12-07 15:09:13 +0100 | [diff] [blame] | 475 | self.verify_capture(self.pg0, pkts, self.stream_1 + self.stream_2) |
| 476 | |
Matej Klotton | 16a14cd | 2016-12-07 15:09:13 +0100 | [diff] [blame] | 477 | def test_2_del_routes(self): |
| 478 | """ Delete 100 routes |
| 479 | |
| 480 | - delete 10 routes check with traffic script. |
| 481 | """ |
Paul Vinciguerra | 4eed747 | 2018-12-16 14:52:36 -0800 | [diff] [blame] | 482 | # config 1M FIB entries |
| 483 | self.configured_routes.extend(self.config_fib_many_to_one( |
| 484 | "10.0.0.0", self.pg0.remote_ip4, 100)) |
Matej Klotton | 16a14cd | 2016-12-07 15:09:13 +0100 | [diff] [blame] | 485 | self.deleted_routes.extend(self.unconfig_fib_many_to_one( |
| 486 | "10.0.0.10", self.pg0.remote_ip4, 10)) |
| 487 | for x in self.deleted_routes: |
| 488 | self.configured_routes.remove(x) |
| 489 | |
| 490 | fib_dump = self.vapi.ip_fib_dump() |
| 491 | self.verify_route_dump(fib_dump, self.configured_routes) |
| 492 | |
| 493 | self.stream_1 = self.create_stream( |
| 494 | self.pg1, self.pg0, self.configured_routes, 100) |
| 495 | self.stream_2 = self.create_stream( |
| 496 | self.pg2, self.pg0, self.configured_routes, 100) |
| 497 | self.stream_3 = self.create_stream( |
| 498 | self.pg1, self.pg0, self.deleted_routes, 100) |
| 499 | self.stream_4 = self.create_stream( |
| 500 | self.pg2, self.pg0, self.deleted_routes, 100) |
| 501 | self.pg1.add_stream(self.stream_1 + self.stream_3) |
| 502 | self.pg2.add_stream(self.stream_2 + self.stream_4) |
| 503 | self.pg_enable_capture(self.pg_interfaces) |
| 504 | self.pg_start() |
| 505 | |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 506 | pkts = self.pg0.get_capture(len(self.stream_1) + len(self.stream_2)) |
Matej Klotton | 16a14cd | 2016-12-07 15:09:13 +0100 | [diff] [blame] | 507 | self.verify_capture(self.pg0, pkts, self.stream_1 + self.stream_2) |
| 508 | |
| 509 | def test_3_add_new_routes(self): |
| 510 | """ Add 1k routes |
| 511 | |
| 512 | - re-add 5 routes check with traffic script. |
| 513 | - add 100 routes check with traffic script. |
| 514 | """ |
Paul Vinciguerra | 4eed747 | 2018-12-16 14:52:36 -0800 | [diff] [blame] | 515 | # config 1M FIB entries |
| 516 | self.configured_routes.extend(self.config_fib_many_to_one( |
| 517 | "10.0.0.0", self.pg0.remote_ip4, 100)) |
| 518 | self.deleted_routes.extend(self.unconfig_fib_many_to_one( |
| 519 | "10.0.0.10", self.pg0.remote_ip4, 10)) |
| 520 | for x in self.deleted_routes: |
| 521 | self.configured_routes.remove(x) |
| 522 | |
Matej Klotton | 16a14cd | 2016-12-07 15:09:13 +0100 | [diff] [blame] | 523 | tmp = self.config_fib_many_to_one( |
| 524 | "10.0.0.10", self.pg0.remote_ip4, 5) |
| 525 | self.configured_routes.extend(tmp) |
| 526 | for x in tmp: |
| 527 | self.deleted_routes.remove(x) |
| 528 | |
| 529 | self.configured_routes.extend(self.config_fib_many_to_one( |
| 530 | "10.0.1.0", self.pg0.remote_ip4, 100)) |
| 531 | |
| 532 | fib_dump = self.vapi.ip_fib_dump() |
| 533 | self.verify_route_dump(fib_dump, self.configured_routes) |
| 534 | |
| 535 | self.stream_1 = self.create_stream( |
| 536 | self.pg1, self.pg0, self.configured_routes, 300) |
| 537 | self.stream_2 = self.create_stream( |
| 538 | self.pg2, self.pg0, self.configured_routes, 300) |
| 539 | self.stream_3 = self.create_stream( |
| 540 | self.pg1, self.pg0, self.deleted_routes, 100) |
| 541 | self.stream_4 = self.create_stream( |
| 542 | self.pg2, self.pg0, self.deleted_routes, 100) |
| 543 | |
| 544 | self.pg1.add_stream(self.stream_1 + self.stream_3) |
| 545 | self.pg2.add_stream(self.stream_2 + self.stream_4) |
| 546 | self.pg_enable_capture(self.pg_interfaces) |
| 547 | self.pg_start() |
| 548 | |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 549 | pkts = self.pg0.get_capture(len(self.stream_1) + len(self.stream_2)) |
Matej Klotton | 16a14cd | 2016-12-07 15:09:13 +0100 | [diff] [blame] | 550 | self.verify_capture(self.pg0, pkts, self.stream_1 + self.stream_2) |
| 551 | |
| 552 | def test_4_del_routes(self): |
| 553 | """ Delete 1.5k routes |
| 554 | |
| 555 | - delete 5 routes check with traffic script. |
| 556 | - add 100 routes check with traffic script. |
| 557 | """ |
| 558 | self.deleted_routes.extend(self.unconfig_fib_many_to_one( |
| 559 | "10.0.0.0", self.pg0.remote_ip4, 15)) |
| 560 | self.deleted_routes.extend(self.unconfig_fib_many_to_one( |
| 561 | "10.0.0.20", self.pg0.remote_ip4, 85)) |
| 562 | self.deleted_routes.extend(self.unconfig_fib_many_to_one( |
| 563 | "10.0.1.0", self.pg0.remote_ip4, 100)) |
| 564 | fib_dump = self.vapi.ip_fib_dump() |
| 565 | self.verify_not_in_route_dump(fib_dump, self.deleted_routes) |
| 566 | |
| 567 | |
Neale Ranns | 37be736 | 2017-02-21 17:30:26 -0800 | [diff] [blame] | 568 | class TestIPNull(VppTestCase): |
| 569 | """ IPv4 routes via NULL """ |
| 570 | |
| 571 | def setUp(self): |
| 572 | super(TestIPNull, self).setUp() |
| 573 | |
| 574 | # create 2 pg interfaces |
Neale Ranns | 3b93be5 | 2018-09-07 01:48:54 -0700 | [diff] [blame] | 575 | self.create_pg_interfaces(range(2)) |
Neale Ranns | 37be736 | 2017-02-21 17:30:26 -0800 | [diff] [blame] | 576 | |
| 577 | for i in self.pg_interfaces: |
| 578 | i.admin_up() |
| 579 | i.config_ip4() |
| 580 | i.resolve_arp() |
| 581 | |
| 582 | def tearDown(self): |
| 583 | super(TestIPNull, self).tearDown() |
| 584 | for i in self.pg_interfaces: |
| 585 | i.unconfig_ip4() |
| 586 | i.admin_down() |
| 587 | |
| 588 | def test_ip_null(self): |
| 589 | """ IP NULL route """ |
| 590 | |
| 591 | # |
| 592 | # A route via IP NULL that will reply with ICMP unreachables |
| 593 | # |
| 594 | ip_unreach = VppIpRoute(self, "10.0.0.1", 32, [], is_unreach=1) |
| 595 | ip_unreach.add_vpp_config() |
| 596 | |
| 597 | p_unreach = (Ether(src=self.pg0.remote_mac, |
| 598 | dst=self.pg0.local_mac) / |
| 599 | IP(src=self.pg0.remote_ip4, dst="10.0.0.1") / |
| 600 | UDP(sport=1234, dport=1234) / |
| 601 | Raw('\xa5' * 100)) |
| 602 | |
| 603 | self.pg0.add_stream(p_unreach) |
| 604 | self.pg_enable_capture(self.pg_interfaces) |
| 605 | self.pg_start() |
| 606 | |
| 607 | rx = self.pg0.get_capture(1) |
| 608 | rx = rx[0] |
| 609 | icmp = rx[ICMP] |
| 610 | |
| 611 | self.assertEqual(icmptypes[icmp.type], "dest-unreach") |
| 612 | self.assertEqual(icmpcodes[icmp.type][icmp.code], "host-unreachable") |
| 613 | self.assertEqual(icmp.src, self.pg0.remote_ip4) |
| 614 | self.assertEqual(icmp.dst, "10.0.0.1") |
| 615 | |
| 616 | # |
| 617 | # ICMP replies are rate limited. so sit and spin. |
| 618 | # |
| 619 | self.sleep(1) |
| 620 | |
| 621 | # |
| 622 | # A route via IP NULL that will reply with ICMP prohibited |
| 623 | # |
| 624 | ip_prohibit = VppIpRoute(self, "10.0.0.2", 32, [], is_prohibit=1) |
| 625 | ip_prohibit.add_vpp_config() |
| 626 | |
| 627 | p_prohibit = (Ether(src=self.pg0.remote_mac, |
| 628 | dst=self.pg0.local_mac) / |
| 629 | IP(src=self.pg0.remote_ip4, dst="10.0.0.2") / |
| 630 | UDP(sport=1234, dport=1234) / |
| 631 | Raw('\xa5' * 100)) |
| 632 | |
| 633 | self.pg0.add_stream(p_prohibit) |
| 634 | self.pg_enable_capture(self.pg_interfaces) |
| 635 | self.pg_start() |
| 636 | |
| 637 | rx = self.pg0.get_capture(1) |
| 638 | |
| 639 | rx = rx[0] |
| 640 | icmp = rx[ICMP] |
| 641 | |
| 642 | self.assertEqual(icmptypes[icmp.type], "dest-unreach") |
| 643 | self.assertEqual(icmpcodes[icmp.type][icmp.code], "host-prohibited") |
| 644 | self.assertEqual(icmp.src, self.pg0.remote_ip4) |
| 645 | self.assertEqual(icmp.dst, "10.0.0.2") |
| 646 | |
Neale Ranns | 3b93be5 | 2018-09-07 01:48:54 -0700 | [diff] [blame] | 647 | def test_ip_drop(self): |
| 648 | """ IP Drop Routes """ |
| 649 | |
| 650 | p = (Ether(src=self.pg0.remote_mac, |
| 651 | dst=self.pg0.local_mac) / |
| 652 | IP(src=self.pg0.remote_ip4, dst="1.1.1.1") / |
| 653 | UDP(sport=1234, dport=1234) / |
| 654 | Raw('\xa5' * 100)) |
| 655 | |
| 656 | r1 = VppIpRoute(self, "1.1.1.0", 24, |
| 657 | [VppRoutePath(self.pg1.remote_ip4, |
| 658 | self.pg1.sw_if_index)]) |
| 659 | r1.add_vpp_config() |
| 660 | |
| 661 | rx = self.send_and_expect(self.pg0, p * 65, self.pg1) |
| 662 | |
| 663 | # |
| 664 | # insert a more specific as a drop |
| 665 | # |
| 666 | r2 = VppIpRoute(self, "1.1.1.1", 32, [], is_drop=1) |
| 667 | r2.add_vpp_config() |
| 668 | |
| 669 | self.send_and_assert_no_replies(self.pg0, p * 65, "Drop Route") |
| 670 | r2.remove_vpp_config() |
| 671 | rx = self.send_and_expect(self.pg0, p * 65, self.pg1) |
| 672 | |
Neale Ranns | 37be736 | 2017-02-21 17:30:26 -0800 | [diff] [blame] | 673 | |
Neale Ranns | 180279b | 2017-03-16 15:49:09 -0400 | [diff] [blame] | 674 | class TestIPDisabled(VppTestCase): |
| 675 | """ IPv4 disabled """ |
| 676 | |
| 677 | def setUp(self): |
| 678 | super(TestIPDisabled, self).setUp() |
| 679 | |
| 680 | # create 2 pg interfaces |
| 681 | self.create_pg_interfaces(range(2)) |
| 682 | |
| 683 | # PG0 is IP enalbed |
| 684 | self.pg0.admin_up() |
| 685 | self.pg0.config_ip4() |
| 686 | self.pg0.resolve_arp() |
| 687 | |
| 688 | # PG 1 is not IP enabled |
| 689 | self.pg1.admin_up() |
| 690 | |
| 691 | def tearDown(self): |
| 692 | super(TestIPDisabled, self).tearDown() |
| 693 | for i in self.pg_interfaces: |
| 694 | i.unconfig_ip4() |
| 695 | i.admin_down() |
| 696 | |
Neale Ranns | 180279b | 2017-03-16 15:49:09 -0400 | [diff] [blame] | 697 | def test_ip_disabled(self): |
| 698 | """ IP Disabled """ |
| 699 | |
| 700 | # |
| 701 | # An (S,G). |
| 702 | # one accepting interface, pg0, 2 forwarding interfaces |
| 703 | # |
| 704 | route_232_1_1_1 = VppIpMRoute( |
| 705 | self, |
| 706 | "0.0.0.0", |
| 707 | "232.1.1.1", 32, |
| 708 | MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE, |
| 709 | [VppMRoutePath(self.pg1.sw_if_index, |
| 710 | MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT), |
| 711 | VppMRoutePath(self.pg0.sw_if_index, |
| 712 | MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)]) |
| 713 | route_232_1_1_1.add_vpp_config() |
| 714 | |
| 715 | pu = (Ether(src=self.pg1.remote_mac, |
| 716 | dst=self.pg1.local_mac) / |
| 717 | IP(src="10.10.10.10", dst=self.pg0.remote_ip4) / |
| 718 | UDP(sport=1234, dport=1234) / |
| 719 | Raw('\xa5' * 100)) |
| 720 | pm = (Ether(src=self.pg1.remote_mac, |
| 721 | dst=self.pg1.local_mac) / |
| 722 | IP(src="10.10.10.10", dst="232.1.1.1") / |
| 723 | UDP(sport=1234, dport=1234) / |
| 724 | Raw('\xa5' * 100)) |
| 725 | |
| 726 | # |
| 727 | # PG1 does not forward IP traffic |
| 728 | # |
| 729 | self.send_and_assert_no_replies(self.pg1, pu, "IP disabled") |
| 730 | self.send_and_assert_no_replies(self.pg1, pm, "IP disabled") |
| 731 | |
| 732 | # |
| 733 | # IP enable PG1 |
| 734 | # |
| 735 | self.pg1.config_ip4() |
| 736 | |
| 737 | # |
| 738 | # Now we get packets through |
| 739 | # |
| 740 | self.pg1.add_stream(pu) |
| 741 | self.pg_enable_capture(self.pg_interfaces) |
| 742 | self.pg_start() |
| 743 | rx = self.pg0.get_capture(1) |
| 744 | |
| 745 | self.pg1.add_stream(pm) |
| 746 | self.pg_enable_capture(self.pg_interfaces) |
| 747 | self.pg_start() |
| 748 | rx = self.pg0.get_capture(1) |
| 749 | |
| 750 | # |
| 751 | # Disable PG1 |
| 752 | # |
| 753 | self.pg1.unconfig_ip4() |
| 754 | |
| 755 | # |
| 756 | # PG1 does not forward IP traffic |
| 757 | # |
| 758 | self.send_and_assert_no_replies(self.pg1, pu, "IP disabled") |
| 759 | self.send_and_assert_no_replies(self.pg1, pm, "IP disabled") |
| 760 | |
| 761 | |
Neale Ranns | 9a69a60 | 2017-03-26 10:56:33 -0700 | [diff] [blame] | 762 | class TestIPSubNets(VppTestCase): |
| 763 | """ IPv4 Subnets """ |
| 764 | |
| 765 | def setUp(self): |
| 766 | super(TestIPSubNets, self).setUp() |
| 767 | |
| 768 | # create a 2 pg interfaces |
| 769 | self.create_pg_interfaces(range(2)) |
| 770 | |
| 771 | # pg0 we will use to experiemnt |
| 772 | self.pg0.admin_up() |
| 773 | |
| 774 | # pg1 is setup normally |
| 775 | self.pg1.admin_up() |
| 776 | self.pg1.config_ip4() |
| 777 | self.pg1.resolve_arp() |
| 778 | |
| 779 | def tearDown(self): |
| 780 | super(TestIPSubNets, self).tearDown() |
| 781 | for i in self.pg_interfaces: |
| 782 | i.admin_down() |
| 783 | |
Neale Ranns | 9a69a60 | 2017-03-26 10:56:33 -0700 | [diff] [blame] | 784 | def test_ip_sub_nets(self): |
| 785 | """ IP Sub Nets """ |
| 786 | |
| 787 | # |
| 788 | # Configure a covering route to forward so we know |
| 789 | # when we are dropping |
| 790 | # |
| 791 | cover_route = VppIpRoute(self, "10.0.0.0", 8, |
| 792 | [VppRoutePath(self.pg1.remote_ip4, |
| 793 | self.pg1.sw_if_index)]) |
| 794 | cover_route.add_vpp_config() |
| 795 | |
| 796 | p = (Ether(src=self.pg1.remote_mac, |
| 797 | dst=self.pg1.local_mac) / |
| 798 | IP(dst="10.10.10.10", src=self.pg0.local_ip4) / |
| 799 | UDP(sport=1234, dport=1234) / |
| 800 | Raw('\xa5' * 100)) |
| 801 | |
| 802 | self.pg1.add_stream(p) |
| 803 | self.pg_enable_capture(self.pg_interfaces) |
| 804 | self.pg_start() |
| 805 | rx = self.pg1.get_capture(1) |
| 806 | |
| 807 | # |
| 808 | # Configure some non-/24 subnets on an IP interface |
| 809 | # |
| 810 | ip_addr_n = socket.inet_pton(socket.AF_INET, "10.10.10.10") |
| 811 | |
Ole Troan | 9a47537 | 2019-03-05 16:58:24 +0100 | [diff] [blame] | 812 | self.vapi.sw_interface_add_del_address( |
Ole Trøan | 3b0d7e4 | 2019-03-15 16:14:41 +0000 | [diff] [blame] | 813 | sw_if_index=self.pg0.sw_if_index, address=ip_addr_n, |
| 814 | address_length=16) |
Neale Ranns | 9a69a60 | 2017-03-26 10:56:33 -0700 | [diff] [blame] | 815 | |
| 816 | pn = (Ether(src=self.pg1.remote_mac, |
| 817 | dst=self.pg1.local_mac) / |
| 818 | IP(dst="10.10.0.0", src=self.pg0.local_ip4) / |
| 819 | UDP(sport=1234, dport=1234) / |
| 820 | Raw('\xa5' * 100)) |
| 821 | pb = (Ether(src=self.pg1.remote_mac, |
| 822 | dst=self.pg1.local_mac) / |
| 823 | IP(dst="10.10.255.255", src=self.pg0.local_ip4) / |
| 824 | UDP(sport=1234, dport=1234) / |
| 825 | Raw('\xa5' * 100)) |
| 826 | |
| 827 | self.send_and_assert_no_replies(self.pg1, pn, "IP Network address") |
| 828 | self.send_and_assert_no_replies(self.pg1, pb, "IP Broadcast address") |
| 829 | |
| 830 | # remove the sub-net and we are forwarding via the cover again |
Ole Troan | 9a47537 | 2019-03-05 16:58:24 +0100 | [diff] [blame] | 831 | self.vapi.sw_interface_add_del_address( |
Ole Trøan | 3b0d7e4 | 2019-03-15 16:14:41 +0000 | [diff] [blame] | 832 | sw_if_index=self.pg0.sw_if_index, address=ip_addr_n, |
| 833 | address_length=16, is_add=0) |
Neale Ranns | 9a69a60 | 2017-03-26 10:56:33 -0700 | [diff] [blame] | 834 | self.pg1.add_stream(pn) |
| 835 | self.pg_enable_capture(self.pg_interfaces) |
| 836 | self.pg_start() |
| 837 | rx = self.pg1.get_capture(1) |
| 838 | self.pg1.add_stream(pb) |
| 839 | self.pg_enable_capture(self.pg_interfaces) |
| 840 | self.pg_start() |
| 841 | rx = self.pg1.get_capture(1) |
| 842 | |
| 843 | # |
| 844 | # A /31 is a special case where the 'other-side' is an attached host |
| 845 | # packets to that peer generate ARP requests |
| 846 | # |
| 847 | ip_addr_n = socket.inet_pton(socket.AF_INET, "10.10.10.10") |
| 848 | |
Ole Troan | 9a47537 | 2019-03-05 16:58:24 +0100 | [diff] [blame] | 849 | self.vapi.sw_interface_add_del_address( |
Ole Trøan | 3b0d7e4 | 2019-03-15 16:14:41 +0000 | [diff] [blame] | 850 | sw_if_index=self.pg0.sw_if_index, address=ip_addr_n, |
| 851 | address_length=31) |
Neale Ranns | 9a69a60 | 2017-03-26 10:56:33 -0700 | [diff] [blame] | 852 | |
| 853 | pn = (Ether(src=self.pg1.remote_mac, |
| 854 | dst=self.pg1.local_mac) / |
| 855 | IP(dst="10.10.10.11", src=self.pg0.local_ip4) / |
| 856 | UDP(sport=1234, dport=1234) / |
| 857 | Raw('\xa5' * 100)) |
| 858 | |
| 859 | self.pg1.add_stream(pn) |
| 860 | self.pg_enable_capture(self.pg_interfaces) |
| 861 | self.pg_start() |
| 862 | rx = self.pg0.get_capture(1) |
| 863 | rx[ARP] |
| 864 | |
| 865 | # remove the sub-net and we are forwarding via the cover again |
Ole Troan | 9a47537 | 2019-03-05 16:58:24 +0100 | [diff] [blame] | 866 | self.vapi.sw_interface_add_del_address( |
Ole Trøan | 3b0d7e4 | 2019-03-15 16:14:41 +0000 | [diff] [blame] | 867 | sw_if_index=self.pg0.sw_if_index, address=ip_addr_n, |
| 868 | address_length=31, is_add=0) |
Neale Ranns | 9a69a60 | 2017-03-26 10:56:33 -0700 | [diff] [blame] | 869 | self.pg1.add_stream(pn) |
| 870 | self.pg_enable_capture(self.pg_interfaces) |
| 871 | self.pg_start() |
| 872 | rx = self.pg1.get_capture(1) |
| 873 | |
| 874 | |
Neale Ranns | 227038a | 2017-04-21 01:07:59 -0700 | [diff] [blame] | 875 | class TestIPLoadBalance(VppTestCase): |
| 876 | """ IPv4 Load-Balancing """ |
| 877 | |
| 878 | def setUp(self): |
| 879 | super(TestIPLoadBalance, self).setUp() |
| 880 | |
| 881 | self.create_pg_interfaces(range(5)) |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 882 | mpls_tbl = VppMplsTable(self, 0) |
| 883 | mpls_tbl.add_vpp_config() |
Neale Ranns | 227038a | 2017-04-21 01:07:59 -0700 | [diff] [blame] | 884 | |
| 885 | for i in self.pg_interfaces: |
| 886 | i.admin_up() |
| 887 | i.config_ip4() |
| 888 | i.resolve_arp() |
Neale Ranns | 71275e3 | 2017-05-25 12:38:58 -0700 | [diff] [blame] | 889 | i.enable_mpls() |
Neale Ranns | 227038a | 2017-04-21 01:07:59 -0700 | [diff] [blame] | 890 | |
| 891 | def tearDown(self): |
Neale Ranns | 227038a | 2017-04-21 01:07:59 -0700 | [diff] [blame] | 892 | for i in self.pg_interfaces: |
Neale Ranns | 71275e3 | 2017-05-25 12:38:58 -0700 | [diff] [blame] | 893 | i.disable_mpls() |
Neale Ranns | 227038a | 2017-04-21 01:07:59 -0700 | [diff] [blame] | 894 | i.unconfig_ip4() |
| 895 | i.admin_down() |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 896 | super(TestIPLoadBalance, self).tearDown() |
Neale Ranns | 227038a | 2017-04-21 01:07:59 -0700 | [diff] [blame] | 897 | |
| 898 | def send_and_expect_load_balancing(self, input, pkts, outputs): |
| 899 | input.add_stream(pkts) |
| 900 | self.pg_enable_capture(self.pg_interfaces) |
| 901 | self.pg_start() |
Neale Ranns | 6348074 | 2019-03-13 06:41:52 -0700 | [diff] [blame] | 902 | rxs = [] |
Neale Ranns | 227038a | 2017-04-21 01:07:59 -0700 | [diff] [blame] | 903 | for oo in outputs: |
| 904 | rx = oo._get_capture(1) |
| 905 | self.assertNotEqual(0, len(rx)) |
Neale Ranns | 6348074 | 2019-03-13 06:41:52 -0700 | [diff] [blame] | 906 | for r in rx: |
| 907 | rxs.append(r) |
| 908 | return rxs |
Neale Ranns | 227038a | 2017-04-21 01:07:59 -0700 | [diff] [blame] | 909 | |
Neale Ranns | 42e6b09 | 2017-07-31 02:56:03 -0700 | [diff] [blame] | 910 | def send_and_expect_one_itf(self, input, pkts, itf): |
| 911 | input.add_stream(pkts) |
| 912 | self.pg_enable_capture(self.pg_interfaces) |
| 913 | self.pg_start() |
| 914 | rx = itf.get_capture(len(pkts)) |
| 915 | |
Neale Ranns | 227038a | 2017-04-21 01:07:59 -0700 | [diff] [blame] | 916 | def test_ip_load_balance(self): |
| 917 | """ IP Load-Balancing """ |
| 918 | |
| 919 | # |
| 920 | # An array of packets that differ only in the destination port |
| 921 | # |
Neale Ranns | 71275e3 | 2017-05-25 12:38:58 -0700 | [diff] [blame] | 922 | port_ip_pkts = [] |
| 923 | port_mpls_pkts = [] |
Neale Ranns | 227038a | 2017-04-21 01:07:59 -0700 | [diff] [blame] | 924 | |
| 925 | # |
| 926 | # An array of packets that differ only in the source address |
| 927 | # |
Neale Ranns | 71275e3 | 2017-05-25 12:38:58 -0700 | [diff] [blame] | 928 | src_ip_pkts = [] |
| 929 | src_mpls_pkts = [] |
Neale Ranns | 227038a | 2017-04-21 01:07:59 -0700 | [diff] [blame] | 930 | |
| 931 | for ii in range(65): |
Neale Ranns | 71275e3 | 2017-05-25 12:38:58 -0700 | [diff] [blame] | 932 | port_ip_hdr = (IP(dst="10.0.0.1", src="20.0.0.1") / |
| 933 | UDP(sport=1234, dport=1234 + ii) / |
| 934 | Raw('\xa5' * 100)) |
| 935 | port_ip_pkts.append((Ether(src=self.pg0.remote_mac, |
| 936 | dst=self.pg0.local_mac) / |
| 937 | port_ip_hdr)) |
| 938 | port_mpls_pkts.append((Ether(src=self.pg0.remote_mac, |
| 939 | dst=self.pg0.local_mac) / |
| 940 | MPLS(label=66, ttl=2) / |
| 941 | port_ip_hdr)) |
| 942 | |
| 943 | src_ip_hdr = (IP(dst="10.0.0.1", src="20.0.0.%d" % ii) / |
| 944 | UDP(sport=1234, dport=1234) / |
| 945 | Raw('\xa5' * 100)) |
| 946 | src_ip_pkts.append((Ether(src=self.pg0.remote_mac, |
| 947 | dst=self.pg0.local_mac) / |
| 948 | src_ip_hdr)) |
| 949 | src_mpls_pkts.append((Ether(src=self.pg0.remote_mac, |
| 950 | dst=self.pg0.local_mac) / |
| 951 | MPLS(label=66, ttl=2) / |
| 952 | src_ip_hdr)) |
Neale Ranns | 227038a | 2017-04-21 01:07:59 -0700 | [diff] [blame] | 953 | |
| 954 | route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32, |
| 955 | [VppRoutePath(self.pg1.remote_ip4, |
| 956 | self.pg1.sw_if_index), |
| 957 | VppRoutePath(self.pg2.remote_ip4, |
| 958 | self.pg2.sw_if_index)]) |
| 959 | route_10_0_0_1.add_vpp_config() |
| 960 | |
Neale Ranns | 71275e3 | 2017-05-25 12:38:58 -0700 | [diff] [blame] | 961 | binding = VppMplsIpBind(self, 66, "10.0.0.1", 32) |
| 962 | binding.add_vpp_config() |
| 963 | |
Neale Ranns | 227038a | 2017-04-21 01:07:59 -0700 | [diff] [blame] | 964 | # |
| 965 | # inject the packet on pg0 - expect load-balancing across the 2 paths |
| 966 | # - since the default hash config is to use IP src,dst and port |
| 967 | # src,dst |
| 968 | # We are not going to ensure equal amounts of packets across each link, |
| 969 | # since the hash algorithm is statistical and therefore this can never |
| 970 | # be guaranteed. But wuth 64 different packets we do expect some |
| 971 | # balancing. So instead just ensure there is traffic on each link. |
| 972 | # |
Neale Ranns | 71275e3 | 2017-05-25 12:38:58 -0700 | [diff] [blame] | 973 | self.send_and_expect_load_balancing(self.pg0, port_ip_pkts, |
Neale Ranns | 227038a | 2017-04-21 01:07:59 -0700 | [diff] [blame] | 974 | [self.pg1, self.pg2]) |
Neale Ranns | 71275e3 | 2017-05-25 12:38:58 -0700 | [diff] [blame] | 975 | self.send_and_expect_load_balancing(self.pg0, src_ip_pkts, |
| 976 | [self.pg1, self.pg2]) |
| 977 | self.send_and_expect_load_balancing(self.pg0, port_mpls_pkts, |
| 978 | [self.pg1, self.pg2]) |
| 979 | self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts, |
Neale Ranns | 227038a | 2017-04-21 01:07:59 -0700 | [diff] [blame] | 980 | [self.pg1, self.pg2]) |
| 981 | |
| 982 | # |
| 983 | # change the flow hash config so it's only IP src,dst |
| 984 | # - now only the stream with differing source address will |
| 985 | # load-balance |
| 986 | # |
Ole Troan | a5b2eec | 2019-03-11 19:23:25 +0100 | [diff] [blame] | 987 | self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, sport=0, dport=0) |
Neale Ranns | 227038a | 2017-04-21 01:07:59 -0700 | [diff] [blame] | 988 | |
Neale Ranns | 71275e3 | 2017-05-25 12:38:58 -0700 | [diff] [blame] | 989 | self.send_and_expect_load_balancing(self.pg0, src_ip_pkts, |
| 990 | [self.pg1, self.pg2]) |
| 991 | self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts, |
Neale Ranns | 227038a | 2017-04-21 01:07:59 -0700 | [diff] [blame] | 992 | [self.pg1, self.pg2]) |
| 993 | |
Neale Ranns | 42e6b09 | 2017-07-31 02:56:03 -0700 | [diff] [blame] | 994 | self.send_and_expect_one_itf(self.pg0, port_ip_pkts, self.pg2) |
Neale Ranns | 227038a | 2017-04-21 01:07:59 -0700 | [diff] [blame] | 995 | |
| 996 | # |
| 997 | # change the flow hash config back to defaults |
| 998 | # |
Ole Troan | a5b2eec | 2019-03-11 19:23:25 +0100 | [diff] [blame] | 999 | self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, sport=1, dport=1) |
Neale Ranns | 227038a | 2017-04-21 01:07:59 -0700 | [diff] [blame] | 1000 | |
| 1001 | # |
| 1002 | # Recursive prefixes |
| 1003 | # - testing that 2 stages of load-balancing occurs and there is no |
| 1004 | # polarisation (i.e. only 2 of 4 paths are used) |
| 1005 | # |
| 1006 | port_pkts = [] |
| 1007 | src_pkts = [] |
| 1008 | |
| 1009 | for ii in range(257): |
| 1010 | port_pkts.append((Ether(src=self.pg0.remote_mac, |
| 1011 | dst=self.pg0.local_mac) / |
| 1012 | IP(dst="1.1.1.1", src="20.0.0.1") / |
| 1013 | UDP(sport=1234, dport=1234 + ii) / |
| 1014 | Raw('\xa5' * 100))) |
| 1015 | src_pkts.append((Ether(src=self.pg0.remote_mac, |
| 1016 | dst=self.pg0.local_mac) / |
| 1017 | IP(dst="1.1.1.1", src="20.0.0.%d" % ii) / |
| 1018 | UDP(sport=1234, dport=1234) / |
| 1019 | Raw('\xa5' * 100))) |
| 1020 | |
| 1021 | route_10_0_0_2 = VppIpRoute(self, "10.0.0.2", 32, |
| 1022 | [VppRoutePath(self.pg3.remote_ip4, |
| 1023 | self.pg3.sw_if_index), |
| 1024 | VppRoutePath(self.pg4.remote_ip4, |
| 1025 | self.pg4.sw_if_index)]) |
| 1026 | route_10_0_0_2.add_vpp_config() |
| 1027 | |
| 1028 | route_1_1_1_1 = VppIpRoute(self, "1.1.1.1", 32, |
| 1029 | [VppRoutePath("10.0.0.2", 0xffffffff), |
| 1030 | VppRoutePath("10.0.0.1", 0xffffffff)]) |
| 1031 | route_1_1_1_1.add_vpp_config() |
| 1032 | |
| 1033 | # |
| 1034 | # inject the packet on pg0 - expect load-balancing across all 4 paths |
| 1035 | # |
| 1036 | self.vapi.cli("clear trace") |
| 1037 | self.send_and_expect_load_balancing(self.pg0, port_pkts, |
| 1038 | [self.pg1, self.pg2, |
| 1039 | self.pg3, self.pg4]) |
| 1040 | self.send_and_expect_load_balancing(self.pg0, src_pkts, |
| 1041 | [self.pg1, self.pg2, |
| 1042 | self.pg3, self.pg4]) |
| 1043 | |
Neale Ranns | 42e6b09 | 2017-07-31 02:56:03 -0700 | [diff] [blame] | 1044 | # |
Neale Ranns | 6348074 | 2019-03-13 06:41:52 -0700 | [diff] [blame] | 1045 | # bring down pg1 expect LB to adjust to use only those that are pu |
| 1046 | # |
| 1047 | self.pg1.link_down() |
| 1048 | |
| 1049 | rx = self.send_and_expect_load_balancing(self.pg0, src_pkts, |
| 1050 | [self.pg2, self.pg3, |
| 1051 | self.pg4]) |
| 1052 | self.assertEqual(len(src_pkts), len(rx)) |
| 1053 | |
| 1054 | # |
| 1055 | # bring down pg2 expect LB to adjust to use only those that are pu |
| 1056 | # |
| 1057 | self.pg2.link_down() |
| 1058 | |
| 1059 | rx = self.send_and_expect_load_balancing(self.pg0, src_pkts, |
| 1060 | [self.pg3, self.pg4]) |
| 1061 | self.assertEqual(len(src_pkts), len(rx)) |
| 1062 | |
| 1063 | # |
| 1064 | # bring the links back up - expect LB over all again |
| 1065 | # |
| 1066 | self.pg1.link_up() |
| 1067 | self.pg2.link_up() |
| 1068 | |
| 1069 | rx = self.send_and_expect_load_balancing(self.pg0, src_pkts, |
| 1070 | [self.pg1, self.pg2, |
| 1071 | self.pg3, self.pg4]) |
| 1072 | self.assertEqual(len(src_pkts), len(rx)) |
| 1073 | |
| 1074 | # |
| 1075 | # The same link-up/down but this time admin state |
| 1076 | # |
| 1077 | self.pg1.admin_down() |
| 1078 | self.pg2.admin_down() |
| 1079 | rx = self.send_and_expect_load_balancing(self.pg0, src_pkts, |
| 1080 | [self.pg3, self.pg4]) |
| 1081 | self.assertEqual(len(src_pkts), len(rx)) |
| 1082 | self.pg1.admin_up() |
| 1083 | self.pg2.admin_up() |
| 1084 | self.pg1.resolve_arp() |
| 1085 | self.pg2.resolve_arp() |
| 1086 | rx = self.send_and_expect_load_balancing(self.pg0, src_pkts, |
| 1087 | [self.pg1, self.pg2, |
| 1088 | self.pg3, self.pg4]) |
| 1089 | self.assertEqual(len(src_pkts), len(rx)) |
| 1090 | |
| 1091 | # |
Neale Ranns | 42e6b09 | 2017-07-31 02:56:03 -0700 | [diff] [blame] | 1092 | # Recursive prefixes |
| 1093 | # - testing that 2 stages of load-balancing, no choices |
| 1094 | # |
| 1095 | port_pkts = [] |
| 1096 | |
| 1097 | for ii in range(257): |
| 1098 | port_pkts.append((Ether(src=self.pg0.remote_mac, |
| 1099 | dst=self.pg0.local_mac) / |
| 1100 | IP(dst="1.1.1.2", src="20.0.0.2") / |
| 1101 | UDP(sport=1234, dport=1234 + ii) / |
| 1102 | Raw('\xa5' * 100))) |
| 1103 | |
| 1104 | route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32, |
| 1105 | [VppRoutePath(self.pg3.remote_ip4, |
| 1106 | self.pg3.sw_if_index)]) |
| 1107 | route_10_0_0_3.add_vpp_config() |
| 1108 | |
| 1109 | route_1_1_1_2 = VppIpRoute(self, "1.1.1.2", 32, |
| 1110 | [VppRoutePath("10.0.0.3", 0xffffffff)]) |
| 1111 | route_1_1_1_2.add_vpp_config() |
| 1112 | |
| 1113 | # |
Neale Ranns | 6348074 | 2019-03-13 06:41:52 -0700 | [diff] [blame] | 1114 | # inject the packet on pg0 - rx only on via routes output interface |
Neale Ranns | 42e6b09 | 2017-07-31 02:56:03 -0700 | [diff] [blame] | 1115 | # |
| 1116 | self.vapi.cli("clear trace") |
| 1117 | self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg3) |
| 1118 | |
Neale Ranns | 6348074 | 2019-03-13 06:41:52 -0700 | [diff] [blame] | 1119 | # |
| 1120 | # Add a LB route in the presence of a down link - expect no |
| 1121 | # packets over the down link |
| 1122 | # |
| 1123 | self.pg3.link_down() |
| 1124 | |
| 1125 | route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32, |
| 1126 | [VppRoutePath(self.pg3.remote_ip4, |
| 1127 | self.pg3.sw_if_index), |
| 1128 | VppRoutePath(self.pg4.remote_ip4, |
| 1129 | self.pg4.sw_if_index)]) |
| 1130 | route_10_0_0_3.add_vpp_config() |
| 1131 | |
| 1132 | port_pkts = [] |
| 1133 | for ii in range(257): |
| 1134 | port_pkts.append(Ether(src=self.pg0.remote_mac, |
| 1135 | dst=self.pg0.local_mac) / |
| 1136 | IP(dst="10.0.0.3", src="20.0.0.2") / |
| 1137 | UDP(sport=1234, dport=1234 + ii) / |
| 1138 | Raw('\xa5' * 100)) |
| 1139 | |
| 1140 | self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg4) |
| 1141 | |
| 1142 | # bring the link back up |
| 1143 | self.pg3.link_up() |
| 1144 | |
| 1145 | rx = self.send_and_expect_load_balancing(self.pg0, port_pkts, |
| 1146 | [self.pg3, self.pg4]) |
| 1147 | self.assertEqual(len(src_pkts), len(rx)) |
| 1148 | |
Neale Ranns | 30d0fd4 | 2017-05-30 07:30:04 -0700 | [diff] [blame] | 1149 | |
| 1150 | class TestIPVlan0(VppTestCase): |
| 1151 | """ IPv4 VLAN-0 """ |
| 1152 | |
| 1153 | def setUp(self): |
| 1154 | super(TestIPVlan0, self).setUp() |
| 1155 | |
| 1156 | self.create_pg_interfaces(range(2)) |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 1157 | mpls_tbl = VppMplsTable(self, 0) |
| 1158 | mpls_tbl.add_vpp_config() |
Neale Ranns | 30d0fd4 | 2017-05-30 07:30:04 -0700 | [diff] [blame] | 1159 | |
| 1160 | for i in self.pg_interfaces: |
| 1161 | i.admin_up() |
| 1162 | i.config_ip4() |
| 1163 | i.resolve_arp() |
| 1164 | i.enable_mpls() |
| 1165 | |
| 1166 | def tearDown(self): |
Neale Ranns | 30d0fd4 | 2017-05-30 07:30:04 -0700 | [diff] [blame] | 1167 | for i in self.pg_interfaces: |
| 1168 | i.disable_mpls() |
| 1169 | i.unconfig_ip4() |
| 1170 | i.admin_down() |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 1171 | super(TestIPVlan0, self).tearDown() |
Neale Ranns | 30d0fd4 | 2017-05-30 07:30:04 -0700 | [diff] [blame] | 1172 | |
Neale Ranns | 30d0fd4 | 2017-05-30 07:30:04 -0700 | [diff] [blame] | 1173 | def test_ip_vlan_0(self): |
| 1174 | """ IP VLAN-0 """ |
| 1175 | |
| 1176 | pkts = (Ether(src=self.pg0.remote_mac, |
| 1177 | dst=self.pg0.local_mac) / |
| 1178 | Dot1Q(vlan=0) / |
| 1179 | IP(dst=self.pg1.remote_ip4, |
| 1180 | src=self.pg0.remote_ip4) / |
| 1181 | UDP(sport=1234, dport=1234) / |
| 1182 | Raw('\xa5' * 100)) * 65 |
| 1183 | |
| 1184 | # |
| 1185 | # Expect that packets sent on VLAN-0 are forwarded on the |
| 1186 | # main interface. |
| 1187 | # |
| 1188 | self.send_and_expect(self.pg0, pkts, self.pg1) |
| 1189 | |
| 1190 | |
Neale Ranns | d91c1db | 2017-07-31 02:30:50 -0700 | [diff] [blame] | 1191 | class TestIPPunt(VppTestCase): |
| 1192 | """ IPv4 Punt Police/Redirect """ |
| 1193 | |
| 1194 | def setUp(self): |
| 1195 | super(TestIPPunt, self).setUp() |
| 1196 | |
Pavel Kotucek | 609e121 | 2018-11-27 09:59:44 +0100 | [diff] [blame] | 1197 | self.create_pg_interfaces(range(4)) |
Neale Ranns | d91c1db | 2017-07-31 02:30:50 -0700 | [diff] [blame] | 1198 | |
| 1199 | for i in self.pg_interfaces: |
| 1200 | i.admin_up() |
| 1201 | i.config_ip4() |
| 1202 | i.resolve_arp() |
| 1203 | |
| 1204 | def tearDown(self): |
| 1205 | super(TestIPPunt, self).tearDown() |
| 1206 | for i in self.pg_interfaces: |
| 1207 | i.unconfig_ip4() |
| 1208 | i.admin_down() |
| 1209 | |
Neale Ranns | d91c1db | 2017-07-31 02:30:50 -0700 | [diff] [blame] | 1210 | def test_ip_punt(self): |
| 1211 | """ IP punt police and redirect """ |
| 1212 | |
| 1213 | p = (Ether(src=self.pg0.remote_mac, |
| 1214 | dst=self.pg0.local_mac) / |
| 1215 | IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) / |
| 1216 | TCP(sport=1234, dport=1234) / |
| 1217 | Raw('\xa5' * 100)) |
| 1218 | |
| 1219 | pkts = p * 1025 |
| 1220 | |
| 1221 | # |
| 1222 | # Configure a punt redirect via pg1. |
| 1223 | # |
Ole Troan | 0bcad32 | 2018-12-11 13:04:01 +0100 | [diff] [blame] | 1224 | nh_addr = self.pg1.remote_ip4 |
Neale Ranns | d91c1db | 2017-07-31 02:30:50 -0700 | [diff] [blame] | 1225 | self.vapi.ip_punt_redirect(self.pg0.sw_if_index, |
| 1226 | self.pg1.sw_if_index, |
| 1227 | nh_addr) |
| 1228 | |
| 1229 | self.send_and_expect(self.pg0, pkts, self.pg1) |
| 1230 | |
| 1231 | # |
| 1232 | # add a policer |
| 1233 | # |
Paul Vinciguerra | 22ab6f7 | 2019-03-07 17:55:33 -0800 | [diff] [blame] | 1234 | policer = self.vapi.policer_add_del(b"ip4-punt", 400, 0, 10, 0, |
Neale Ranns | d91c1db | 2017-07-31 02:30:50 -0700 | [diff] [blame] | 1235 | rate_type=1) |
| 1236 | self.vapi.ip_punt_police(policer.policer_index) |
| 1237 | |
| 1238 | self.vapi.cli("clear trace") |
| 1239 | self.pg0.add_stream(pkts) |
| 1240 | self.pg_enable_capture(self.pg_interfaces) |
| 1241 | self.pg_start() |
| 1242 | |
| 1243 | # |
| 1244 | # the number of packet recieved should be greater than 0, |
| 1245 | # but not equal to the number sent, since some were policed |
| 1246 | # |
| 1247 | rx = self.pg1._get_capture(1) |
Paul Vinciguerra | 3d2df21 | 2018-11-24 23:19:53 -0800 | [diff] [blame] | 1248 | self.assertGreater(len(rx), 0) |
| 1249 | self.assertLess(len(rx), len(pkts)) |
Neale Ranns | d91c1db | 2017-07-31 02:30:50 -0700 | [diff] [blame] | 1250 | |
| 1251 | # |
| 1252 | # remove the poilcer. back to full rx |
| 1253 | # |
| 1254 | self.vapi.ip_punt_police(policer.policer_index, is_add=0) |
Paul Vinciguerra | 22ab6f7 | 2019-03-07 17:55:33 -0800 | [diff] [blame] | 1255 | self.vapi.policer_add_del(b"ip4-punt", 400, 0, 10, 0, |
Neale Ranns | d91c1db | 2017-07-31 02:30:50 -0700 | [diff] [blame] | 1256 | rate_type=1, is_add=0) |
| 1257 | self.send_and_expect(self.pg0, pkts, self.pg1) |
| 1258 | |
| 1259 | # |
| 1260 | # remove the redirect. expect full drop. |
| 1261 | # |
| 1262 | self.vapi.ip_punt_redirect(self.pg0.sw_if_index, |
| 1263 | self.pg1.sw_if_index, |
| 1264 | nh_addr, |
| 1265 | is_add=0) |
| 1266 | self.send_and_assert_no_replies(self.pg0, pkts, |
| 1267 | "IP no punt config") |
| 1268 | |
| 1269 | # |
| 1270 | # Add a redirect that is not input port selective |
| 1271 | # |
| 1272 | self.vapi.ip_punt_redirect(0xffffffff, |
| 1273 | self.pg1.sw_if_index, |
| 1274 | nh_addr) |
| 1275 | self.send_and_expect(self.pg0, pkts, self.pg1) |
| 1276 | |
| 1277 | self.vapi.ip_punt_redirect(0xffffffff, |
| 1278 | self.pg1.sw_if_index, |
| 1279 | nh_addr, |
| 1280 | is_add=0) |
| 1281 | |
Pavel Kotucek | 609e121 | 2018-11-27 09:59:44 +0100 | [diff] [blame] | 1282 | def test_ip_punt_dump(self): |
| 1283 | """ IP4 punt redirect dump""" |
| 1284 | |
| 1285 | # |
| 1286 | # Configure a punt redirects |
| 1287 | # |
Ole Troan | 0bcad32 | 2018-12-11 13:04:01 +0100 | [diff] [blame] | 1288 | nh_address = self.pg3.remote_ip4 |
Pavel Kotucek | 609e121 | 2018-11-27 09:59:44 +0100 | [diff] [blame] | 1289 | self.vapi.ip_punt_redirect(self.pg0.sw_if_index, |
| 1290 | self.pg3.sw_if_index, |
| 1291 | nh_address) |
| 1292 | self.vapi.ip_punt_redirect(self.pg1.sw_if_index, |
| 1293 | self.pg3.sw_if_index, |
| 1294 | nh_address) |
| 1295 | self.vapi.ip_punt_redirect(self.pg2.sw_if_index, |
| 1296 | self.pg3.sw_if_index, |
Ole Troan | 0bcad32 | 2018-12-11 13:04:01 +0100 | [diff] [blame] | 1297 | '0.0.0.0') |
Pavel Kotucek | 609e121 | 2018-11-27 09:59:44 +0100 | [diff] [blame] | 1298 | |
| 1299 | # |
| 1300 | # Dump pg0 punt redirects |
| 1301 | # |
| 1302 | punts = self.vapi.ip_punt_redirect_dump(self.pg0.sw_if_index) |
| 1303 | for p in punts: |
| 1304 | self.assertEqual(p.punt.rx_sw_if_index, self.pg0.sw_if_index) |
| 1305 | |
| 1306 | # |
| 1307 | # Dump punt redirects for all interfaces |
| 1308 | # |
| 1309 | punts = self.vapi.ip_punt_redirect_dump(0xffffffff) |
| 1310 | self.assertEqual(len(punts), 3) |
| 1311 | for p in punts: |
| 1312 | self.assertEqual(p.punt.tx_sw_if_index, self.pg3.sw_if_index) |
Ole Troan | 0bcad32 | 2018-12-11 13:04:01 +0100 | [diff] [blame] | 1313 | self.assertNotEqual(punts[1].punt.nh, self.pg3.remote_ip4) |
| 1314 | self.assertEqual(str(punts[2].punt.nh), '0.0.0.0') |
Pavel Kotucek | 609e121 | 2018-11-27 09:59:44 +0100 | [diff] [blame] | 1315 | |
Neale Ranns | d91c1db | 2017-07-31 02:30:50 -0700 | [diff] [blame] | 1316 | |
Neale Ranns | 054c03a | 2017-10-13 05:15:07 -0700 | [diff] [blame] | 1317 | class TestIPDeag(VppTestCase): |
| 1318 | """ IPv4 Deaggregate Routes """ |
| 1319 | |
| 1320 | def setUp(self): |
| 1321 | super(TestIPDeag, self).setUp() |
| 1322 | |
| 1323 | self.create_pg_interfaces(range(3)) |
| 1324 | |
| 1325 | for i in self.pg_interfaces: |
| 1326 | i.admin_up() |
| 1327 | i.config_ip4() |
| 1328 | i.resolve_arp() |
| 1329 | |
| 1330 | def tearDown(self): |
| 1331 | super(TestIPDeag, self).tearDown() |
| 1332 | for i in self.pg_interfaces: |
| 1333 | i.unconfig_ip4() |
| 1334 | i.admin_down() |
| 1335 | |
Neale Ranns | 054c03a | 2017-10-13 05:15:07 -0700 | [diff] [blame] | 1336 | def test_ip_deag(self): |
| 1337 | """ IP Deag Routes """ |
| 1338 | |
| 1339 | # |
| 1340 | # Create a table to be used for: |
| 1341 | # 1 - another destination address lookup |
| 1342 | # 2 - a source address lookup |
| 1343 | # |
| 1344 | table_dst = VppIpTable(self, 1) |
| 1345 | table_src = VppIpTable(self, 2) |
| 1346 | table_dst.add_vpp_config() |
| 1347 | table_src.add_vpp_config() |
| 1348 | |
| 1349 | # |
| 1350 | # Add a route in the default table to point to a deag/ |
| 1351 | # second lookup in each of these tables |
| 1352 | # |
| 1353 | route_to_dst = VppIpRoute(self, "1.1.1.1", 32, |
| 1354 | [VppRoutePath("0.0.0.0", |
| 1355 | 0xffffffff, |
| 1356 | nh_table_id=1)]) |
| 1357 | route_to_src = VppIpRoute(self, "1.1.1.2", 32, |
| 1358 | [VppRoutePath("0.0.0.0", |
| 1359 | 0xffffffff, |
| 1360 | nh_table_id=2, |
| 1361 | is_source_lookup=1)]) |
| 1362 | route_to_dst.add_vpp_config() |
| 1363 | route_to_src.add_vpp_config() |
| 1364 | |
| 1365 | # |
| 1366 | # packets to these destination are dropped, since they'll |
| 1367 | # hit the respective default routes in the second table |
| 1368 | # |
| 1369 | p_dst = (Ether(src=self.pg0.remote_mac, |
| 1370 | dst=self.pg0.local_mac) / |
| 1371 | IP(src="5.5.5.5", dst="1.1.1.1") / |
| 1372 | TCP(sport=1234, dport=1234) / |
| 1373 | Raw('\xa5' * 100)) |
| 1374 | p_src = (Ether(src=self.pg0.remote_mac, |
| 1375 | dst=self.pg0.local_mac) / |
| 1376 | IP(src="2.2.2.2", dst="1.1.1.2") / |
| 1377 | TCP(sport=1234, dport=1234) / |
| 1378 | Raw('\xa5' * 100)) |
| 1379 | pkts_dst = p_dst * 257 |
| 1380 | pkts_src = p_src * 257 |
| 1381 | |
| 1382 | self.send_and_assert_no_replies(self.pg0, pkts_dst, |
| 1383 | "IP in dst table") |
| 1384 | self.send_and_assert_no_replies(self.pg0, pkts_src, |
| 1385 | "IP in src table") |
| 1386 | |
| 1387 | # |
| 1388 | # add a route in the dst table to forward via pg1 |
| 1389 | # |
| 1390 | route_in_dst = VppIpRoute(self, "1.1.1.1", 32, |
| 1391 | [VppRoutePath(self.pg1.remote_ip4, |
| 1392 | self.pg1.sw_if_index)], |
| 1393 | table_id=1) |
| 1394 | route_in_dst.add_vpp_config() |
| 1395 | self.send_and_expect(self.pg0, pkts_dst, self.pg1) |
| 1396 | |
| 1397 | # |
| 1398 | # add a route in the src table to forward via pg2 |
| 1399 | # |
| 1400 | route_in_src = VppIpRoute(self, "2.2.2.2", 32, |
| 1401 | [VppRoutePath(self.pg2.remote_ip4, |
| 1402 | self.pg2.sw_if_index)], |
| 1403 | table_id=2) |
| 1404 | route_in_src.add_vpp_config() |
| 1405 | self.send_and_expect(self.pg0, pkts_src, self.pg2) |
| 1406 | |
Neale Ranns | ce9e0b4 | 2018-08-01 12:53:17 -0700 | [diff] [blame] | 1407 | # |
| 1408 | # loop in the lookup DP |
| 1409 | # |
| 1410 | route_loop = VppIpRoute(self, "2.2.2.3", 32, |
| 1411 | [VppRoutePath("0.0.0.0", |
| 1412 | 0xffffffff, |
| 1413 | nh_table_id=0)]) |
| 1414 | route_loop.add_vpp_config() |
| 1415 | |
| 1416 | p_l = (Ether(src=self.pg0.remote_mac, |
| 1417 | dst=self.pg0.local_mac) / |
| 1418 | IP(src="2.2.2.4", dst="2.2.2.3") / |
| 1419 | TCP(sport=1234, dport=1234) / |
| 1420 | Raw('\xa5' * 100)) |
| 1421 | |
| 1422 | self.send_and_assert_no_replies(self.pg0, p_l * 257, |
| 1423 | "IP lookup loop") |
| 1424 | |
Neale Ranns | 054c03a | 2017-10-13 05:15:07 -0700 | [diff] [blame] | 1425 | |
Neale Ranns | 4c7c8e5 | 2017-10-21 09:37:55 -0700 | [diff] [blame] | 1426 | class TestIPInput(VppTestCase): |
| 1427 | """ IPv4 Input Exceptions """ |
| 1428 | |
| 1429 | def setUp(self): |
| 1430 | super(TestIPInput, self).setUp() |
| 1431 | |
| 1432 | self.create_pg_interfaces(range(2)) |
| 1433 | |
| 1434 | for i in self.pg_interfaces: |
| 1435 | i.admin_up() |
| 1436 | i.config_ip4() |
| 1437 | i.resolve_arp() |
| 1438 | |
| 1439 | def tearDown(self): |
| 1440 | super(TestIPInput, self).tearDown() |
| 1441 | for i in self.pg_interfaces: |
| 1442 | i.unconfig_ip4() |
| 1443 | i.admin_down() |
| 1444 | |
Neale Ranns | 4c7c8e5 | 2017-10-21 09:37:55 -0700 | [diff] [blame] | 1445 | def test_ip_input(self): |
| 1446 | """ IP Input Exceptions """ |
| 1447 | |
| 1448 | # i can't find a way in scapy to construct an IP packet |
| 1449 | # with a length less than the IP header length |
| 1450 | |
| 1451 | # |
| 1452 | # Packet too short - this is forwarded |
| 1453 | # |
| 1454 | p_short = (Ether(src=self.pg0.remote_mac, |
| 1455 | dst=self.pg0.local_mac) / |
| 1456 | IP(src=self.pg0.remote_ip4, |
| 1457 | dst=self.pg1.remote_ip4, |
| 1458 | len=40) / |
| 1459 | UDP(sport=1234, dport=1234) / |
| 1460 | Raw('\xa5' * 100)) |
| 1461 | |
| 1462 | rx = self.send_and_expect(self.pg0, p_short * 65, self.pg1) |
| 1463 | |
| 1464 | # |
| 1465 | # Packet too long - this is dropped |
| 1466 | # |
| 1467 | p_long = (Ether(src=self.pg0.remote_mac, |
| 1468 | dst=self.pg0.local_mac) / |
| 1469 | IP(src=self.pg0.remote_ip4, |
| 1470 | dst=self.pg1.remote_ip4, |
| 1471 | len=400) / |
| 1472 | UDP(sport=1234, dport=1234) / |
| 1473 | Raw('\xa5' * 100)) |
| 1474 | |
| 1475 | rx = self.send_and_assert_no_replies(self.pg0, p_long * 65, |
| 1476 | "too long") |
| 1477 | |
| 1478 | # |
| 1479 | # bad chksum - this is dropped |
| 1480 | # |
| 1481 | p_chksum = (Ether(src=self.pg0.remote_mac, |
| 1482 | dst=self.pg0.local_mac) / |
| 1483 | IP(src=self.pg0.remote_ip4, |
| 1484 | dst=self.pg1.remote_ip4, |
| 1485 | chksum=400) / |
| 1486 | UDP(sport=1234, dport=1234) / |
| 1487 | Raw('\xa5' * 100)) |
| 1488 | |
| 1489 | rx = self.send_and_assert_no_replies(self.pg0, p_chksum * 65, |
| 1490 | "bad checksum") |
| 1491 | |
| 1492 | # |
| 1493 | # bad version - this is dropped |
| 1494 | # |
| 1495 | p_ver = (Ether(src=self.pg0.remote_mac, |
| 1496 | dst=self.pg0.local_mac) / |
| 1497 | IP(src=self.pg0.remote_ip4, |
| 1498 | dst=self.pg1.remote_ip4, |
| 1499 | version=3) / |
| 1500 | UDP(sport=1234, dport=1234) / |
| 1501 | Raw('\xa5' * 100)) |
| 1502 | |
| 1503 | rx = self.send_and_assert_no_replies(self.pg0, p_ver * 65, |
| 1504 | "funky version") |
| 1505 | |
| 1506 | # |
| 1507 | # fragment offset 1 - this is dropped |
| 1508 | # |
| 1509 | p_frag = (Ether(src=self.pg0.remote_mac, |
| 1510 | dst=self.pg0.local_mac) / |
| 1511 | IP(src=self.pg0.remote_ip4, |
| 1512 | dst=self.pg1.remote_ip4, |
| 1513 | frag=1) / |
| 1514 | UDP(sport=1234, dport=1234) / |
| 1515 | Raw('\xa5' * 100)) |
| 1516 | |
| 1517 | rx = self.send_and_assert_no_replies(self.pg0, p_frag * 65, |
| 1518 | "frag offset") |
| 1519 | |
| 1520 | # |
| 1521 | # TTL expired packet |
| 1522 | # |
| 1523 | p_ttl = (Ether(src=self.pg0.remote_mac, |
| 1524 | dst=self.pg0.local_mac) / |
| 1525 | IP(src=self.pg0.remote_ip4, |
| 1526 | dst=self.pg1.remote_ip4, |
| 1527 | ttl=1) / |
| 1528 | UDP(sport=1234, dport=1234) / |
| 1529 | Raw('\xa5' * 100)) |
| 1530 | |
| 1531 | rx = self.send_and_expect(self.pg0, p_ttl * 65, self.pg0) |
| 1532 | |
| 1533 | rx = rx[0] |
| 1534 | icmp = rx[ICMP] |
| 1535 | |
| 1536 | self.assertEqual(icmptypes[icmp.type], "time-exceeded") |
| 1537 | self.assertEqual(icmpcodes[icmp.type][icmp.code], |
| 1538 | "ttl-zero-during-transit") |
| 1539 | self.assertEqual(icmp.src, self.pg0.remote_ip4) |
| 1540 | self.assertEqual(icmp.dst, self.pg1.remote_ip4) |
| 1541 | |
Neale Ranns | ffd78d1 | 2018-02-09 06:05:16 -0800 | [diff] [blame] | 1542 | # |
| 1543 | # MTU exceeded |
| 1544 | # |
| 1545 | p_mtu = (Ether(src=self.pg0.remote_mac, |
| 1546 | dst=self.pg0.local_mac) / |
| 1547 | IP(src=self.pg0.remote_ip4, |
| 1548 | dst=self.pg1.remote_ip4, |
Ole Troan | 8a9c8f1 | 2018-05-18 11:01:31 +0200 | [diff] [blame] | 1549 | ttl=10, flags='DF') / |
Neale Ranns | ffd78d1 | 2018-02-09 06:05:16 -0800 | [diff] [blame] | 1550 | UDP(sport=1234, dport=1234) / |
| 1551 | Raw('\xa5' * 2000)) |
| 1552 | |
Ole Troan | d723161 | 2018-06-07 10:17:57 +0200 | [diff] [blame] | 1553 | self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [1500, 0, 0, 0]) |
Neale Ranns | ffd78d1 | 2018-02-09 06:05:16 -0800 | [diff] [blame] | 1554 | |
| 1555 | rx = self.send_and_expect(self.pg0, p_mtu * 65, self.pg0) |
| 1556 | rx = rx[0] |
| 1557 | icmp = rx[ICMP] |
| 1558 | |
| 1559 | self.assertEqual(icmptypes[icmp.type], "dest-unreach") |
| 1560 | self.assertEqual(icmpcodes[icmp.type][icmp.code], |
| 1561 | "fragmentation-needed") |
| 1562 | self.assertEqual(icmp.src, self.pg0.remote_ip4) |
| 1563 | self.assertEqual(icmp.dst, self.pg1.remote_ip4) |
| 1564 | |
Ole Troan | d723161 | 2018-06-07 10:17:57 +0200 | [diff] [blame] | 1565 | self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [2500, 0, 0, 0]) |
Neale Ranns | ffd78d1 | 2018-02-09 06:05:16 -0800 | [diff] [blame] | 1566 | rx = self.send_and_expect(self.pg0, p_mtu * 65, self.pg1) |
| 1567 | |
Ole Troan | d723161 | 2018-06-07 10:17:57 +0200 | [diff] [blame] | 1568 | # Reset MTU for subsequent tests |
| 1569 | self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [9000, 0, 0, 0]) |
Neale Ranns | 4c7c8e5 | 2017-10-21 09:37:55 -0700 | [diff] [blame] | 1570 | |
Neale Ranns | be2286b | 2018-12-09 12:54:51 -0800 | [diff] [blame] | 1571 | # |
| 1572 | # source address 0.0.0.0 and 25.255.255.255 and for-us |
| 1573 | # |
| 1574 | p_s0 = (Ether(src=self.pg0.remote_mac, |
| 1575 | dst=self.pg0.local_mac) / |
| 1576 | IP(src="0.0.0.0", |
| 1577 | dst=self.pg0.local_ip4) / |
| 1578 | ICMP(id=4, seq=4) / |
| 1579 | Raw(load='\x0a' * 18)) |
| 1580 | rx = self.send_and_assert_no_replies(self.pg0, p_s0 * 17) |
| 1581 | |
| 1582 | p_s0 = (Ether(src=self.pg0.remote_mac, |
| 1583 | dst=self.pg0.local_mac) / |
| 1584 | IP(src="255.255.255.255", |
| 1585 | dst=self.pg0.local_ip4) / |
| 1586 | ICMP(id=4, seq=4) / |
| 1587 | Raw(load='\x0a' * 18)) |
| 1588 | rx = self.send_and_assert_no_replies(self.pg0, p_s0 * 17) |
| 1589 | |
Neale Ranns | 1855b8e | 2018-07-11 10:31:26 -0700 | [diff] [blame] | 1590 | |
| 1591 | class TestIPDirectedBroadcast(VppTestCase): |
| 1592 | """ IPv4 Directed Broadcast """ |
| 1593 | |
| 1594 | def setUp(self): |
| 1595 | super(TestIPDirectedBroadcast, self).setUp() |
| 1596 | |
| 1597 | self.create_pg_interfaces(range(2)) |
| 1598 | |
| 1599 | for i in self.pg_interfaces: |
| 1600 | i.admin_up() |
| 1601 | |
| 1602 | def tearDown(self): |
| 1603 | super(TestIPDirectedBroadcast, self).tearDown() |
| 1604 | for i in self.pg_interfaces: |
| 1605 | i.admin_down() |
| 1606 | |
| 1607 | def test_ip_input(self): |
| 1608 | """ IP Directed Broadcast """ |
| 1609 | |
| 1610 | # |
| 1611 | # set the directed broadcast on pg0 first, then config IP4 addresses |
| 1612 | # for pg1 directed broadcast is always disabled |
| 1613 | self.vapi.sw_interface_set_ip_directed_broadcast( |
| 1614 | self.pg0.sw_if_index, 1) |
| 1615 | |
| 1616 | p0 = (Ether(src=self.pg1.remote_mac, |
| 1617 | dst=self.pg1.local_mac) / |
| 1618 | IP(src="1.1.1.1", |
| 1619 | dst=self.pg0._local_ip4_bcast) / |
| 1620 | UDP(sport=1234, dport=1234) / |
| 1621 | Raw('\xa5' * 2000)) |
| 1622 | p1 = (Ether(src=self.pg0.remote_mac, |
| 1623 | dst=self.pg0.local_mac) / |
| 1624 | IP(src="1.1.1.1", |
| 1625 | dst=self.pg1._local_ip4_bcast) / |
| 1626 | UDP(sport=1234, dport=1234) / |
| 1627 | Raw('\xa5' * 2000)) |
| 1628 | |
| 1629 | self.pg0.config_ip4() |
| 1630 | self.pg0.resolve_arp() |
| 1631 | self.pg1.config_ip4() |
| 1632 | self.pg1.resolve_arp() |
| 1633 | |
| 1634 | # |
| 1635 | # test packet is L2 broadcast |
| 1636 | # |
| 1637 | rx = self.send_and_expect(self.pg1, p0 * 65, self.pg0) |
| 1638 | self.assertTrue(rx[0][Ether].dst, "ff:ff:ff:ff:ff:ff") |
| 1639 | |
| 1640 | self.send_and_assert_no_replies(self.pg0, p1 * 65, |
| 1641 | "directed broadcast disabled") |
| 1642 | |
| 1643 | # |
| 1644 | # toggle directed broadcast on pg0 |
| 1645 | # |
| 1646 | self.vapi.sw_interface_set_ip_directed_broadcast( |
| 1647 | self.pg0.sw_if_index, 0) |
| 1648 | self.send_and_assert_no_replies(self.pg1, p0 * 65, |
| 1649 | "directed broadcast disabled") |
| 1650 | |
| 1651 | self.vapi.sw_interface_set_ip_directed_broadcast( |
| 1652 | self.pg0.sw_if_index, 1) |
| 1653 | rx = self.send_and_expect(self.pg1, p0 * 65, self.pg0) |
| 1654 | |
| 1655 | self.pg0.unconfig_ip4() |
| 1656 | self.pg1.unconfig_ip4() |
| 1657 | |
| 1658 | |
mu.duojiao | 59a8295 | 2018-10-11 14:27:30 +0800 | [diff] [blame] | 1659 | class TestIPLPM(VppTestCase): |
| 1660 | """ IPv4 longest Prefix Match """ |
| 1661 | |
| 1662 | def setUp(self): |
| 1663 | super(TestIPLPM, self).setUp() |
| 1664 | |
| 1665 | self.create_pg_interfaces(range(4)) |
| 1666 | |
| 1667 | for i in self.pg_interfaces: |
| 1668 | i.admin_up() |
| 1669 | i.config_ip4() |
| 1670 | i.resolve_arp() |
| 1671 | |
| 1672 | def tearDown(self): |
| 1673 | super(TestIPLPM, self).tearDown() |
| 1674 | for i in self.pg_interfaces: |
| 1675 | i.admin_down() |
| 1676 | i.unconfig_ip4() |
| 1677 | |
| 1678 | def test_ip_lpm(self): |
| 1679 | """ IP longest Prefix Match """ |
| 1680 | |
| 1681 | s_24 = VppIpRoute(self, "10.1.2.0", 24, |
| 1682 | [VppRoutePath(self.pg1.remote_ip4, |
| 1683 | self.pg1.sw_if_index)]) |
| 1684 | s_24.add_vpp_config() |
| 1685 | s_8 = VppIpRoute(self, "10.0.0.0", 8, |
| 1686 | [VppRoutePath(self.pg2.remote_ip4, |
| 1687 | self.pg2.sw_if_index)]) |
| 1688 | s_8.add_vpp_config() |
| 1689 | |
| 1690 | p_8 = (Ether(src=self.pg0.remote_mac, |
| 1691 | dst=self.pg0.local_mac) / |
| 1692 | IP(src="1.1.1.1", |
| 1693 | dst="10.1.1.1") / |
| 1694 | UDP(sport=1234, dport=1234) / |
| 1695 | Raw('\xa5' * 2000)) |
| 1696 | p_24 = (Ether(src=self.pg0.remote_mac, |
| 1697 | dst=self.pg0.local_mac) / |
| 1698 | IP(src="1.1.1.1", |
| 1699 | dst="10.1.2.1") / |
| 1700 | UDP(sport=1234, dport=1234) / |
| 1701 | Raw('\xa5' * 2000)) |
| 1702 | |
| 1703 | self.logger.info(self.vapi.cli("sh ip fib mtrie")) |
| 1704 | rx = self.send_and_expect(self.pg0, p_8 * 65, self.pg2) |
| 1705 | rx = self.send_and_expect(self.pg0, p_24 * 65, self.pg1) |
| 1706 | |
| 1707 | |
Juraj Sloboda | 68b7cb8 | 2018-10-16 12:18:21 +0200 | [diff] [blame] | 1708 | class TestIPv4Frag(VppTestCase): |
| 1709 | """ IPv4 fragmentation """ |
| 1710 | |
| 1711 | @classmethod |
| 1712 | def setUpClass(cls): |
| 1713 | super(TestIPv4Frag, cls).setUpClass() |
| 1714 | |
| 1715 | cls.create_pg_interfaces([0, 1]) |
| 1716 | cls.src_if = cls.pg0 |
| 1717 | cls.dst_if = cls.pg1 |
| 1718 | |
| 1719 | # setup all interfaces |
| 1720 | for i in cls.pg_interfaces: |
| 1721 | i.admin_up() |
| 1722 | i.config_ip4() |
| 1723 | i.resolve_arp() |
| 1724 | |
| 1725 | def test_frag_large_packets(self): |
| 1726 | """ Fragmentation of large packets """ |
| 1727 | |
| 1728 | p = (Ether(dst=self.src_if.local_mac, src=self.src_if.remote_mac) / |
| 1729 | IP(src=self.src_if.remote_ip4, dst=self.dst_if.remote_ip4) / |
| 1730 | UDP(sport=1234, dport=5678) / Raw()) |
| 1731 | self.extend_packet(p, 6000, "abcde") |
| 1732 | saved_payload = p[Raw].load |
| 1733 | |
| 1734 | # Force fragmentation by setting MTU of output interface |
| 1735 | # lower than packet size |
| 1736 | self.vapi.sw_interface_set_mtu(self.dst_if.sw_if_index, |
| 1737 | [5000, 0, 0, 0]) |
| 1738 | |
| 1739 | self.pg_enable_capture() |
| 1740 | self.src_if.add_stream(p) |
| 1741 | self.pg_start() |
| 1742 | |
| 1743 | # Expecting 3 fragments because size of created fragments currently |
| 1744 | # cannot be larger then VPP buffer size (which is 2048) |
| 1745 | packets = self.dst_if.get_capture(3) |
| 1746 | |
| 1747 | # Assume VPP sends the fragments in order |
| 1748 | payload = '' |
| 1749 | for p in packets: |
| 1750 | payload_offset = p.frag * 8 |
| 1751 | if payload_offset > 0: |
| 1752 | payload_offset -= 8 # UDP header is not in payload |
| 1753 | self.assert_equal(payload_offset, len(payload)) |
| 1754 | payload += p[Raw].load |
| 1755 | self.assert_equal(payload, saved_payload, "payload") |
| 1756 | |
| 1757 | |
Damjan Marion | f56b77a | 2016-10-03 19:44:57 +0200 | [diff] [blame] | 1758 | if __name__ == '__main__': |
Klement Sekera | f62ae12 | 2016-10-11 11:47:09 +0200 | [diff] [blame] | 1759 | unittest.main(testRunner=VppTestRunner) |