Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 1 | #!/usr/bin/env python |
| 2 | |
| 3 | import unittest |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 4 | |
Paul Vinciguerra | a7427ec | 2019-03-10 10:04:23 -0700 | [diff] [blame] | 5 | import scapy.compat |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 6 | from scapy.packet import Raw |
Klement Sekera | 9225dee | 2016-12-12 08:36:58 +0100 | [diff] [blame] | 7 | from scapy.layers.l2 import Ether, Dot1Q, GRE |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 8 | from scapy.layers.inet import IP, UDP |
Klement Sekera | 65cc8c0 | 2016-12-18 15:49:54 +0100 | [diff] [blame] | 9 | from scapy.layers.inet6 import IPv6 |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 10 | from scapy.volatile import RandMAC, RandIP |
| 11 | |
Paul Vinciguerra | a279d9c | 2019-02-28 09:00:09 -0800 | [diff] [blame] | 12 | from framework import VppTestCase, VppTestRunner |
Paul Vinciguerra | 95c0ca4 | 2019-03-28 13:07:00 -0700 | [diff] [blame] | 13 | from vpp_sub_interface import L2_VTR_OP, VppDot1QSubint |
Neale Ranns | 5a8844b | 2019-04-16 07:15:35 +0000 | [diff] [blame] | 14 | from vpp_gre_interface import VppGreInterface |
Paul Vinciguerra | a279d9c | 2019-02-28 09:00:09 -0800 | [diff] [blame] | 15 | from vpp_ip import DpoProto |
| 16 | from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpTable |
Klement Sekera | 9225dee | 2016-12-12 08:36:58 +0100 | [diff] [blame] | 17 | from util import ppp, ppc |
Neale Ranns | 5a8844b | 2019-04-16 07:15:35 +0000 | [diff] [blame] | 18 | from vpp_papi import VppEnum |
John Lo | a43ccae | 2018-02-13 17:15:23 -0500 | [diff] [blame] | 19 | |
| 20 | |
Jakub Grajciar | f03beca | 2019-05-24 08:25:03 +0200 | [diff] [blame] | 21 | class TestGREInputNodes(VppTestCase): |
| 22 | """ GRE Input Nodes Test Case """ |
| 23 | |
| 24 | def setUp(self): |
| 25 | super(TestGREInputNodes, self).setUp() |
| 26 | |
| 27 | # create 3 pg interfaces - set one in a non-default table. |
| 28 | self.create_pg_interfaces(range(1)) |
| 29 | |
| 30 | for i in self.pg_interfaces: |
| 31 | i.admin_up() |
| 32 | i.config_ip4() |
| 33 | |
| 34 | def tearDown(self): |
| 35 | for i in self.pg_interfaces: |
| 36 | i.unconfig_ip4() |
| 37 | i.admin_down() |
| 38 | super(TestGREInputNodes, self).tearDown() |
| 39 | |
| 40 | def test_gre_input_node(self): |
| 41 | """ GRE gre input nodes not registerd unless configured """ |
| 42 | pkt = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 43 | IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) / |
| 44 | GRE()) |
| 45 | |
| 46 | self.pg0.add_stream(pkt) |
| 47 | self.pg_start() |
| 48 | # no tunnel created, gre-input not registered |
| 49 | err = self.statistics.get_counter( |
| 50 | '/err/ip4-input/unknown ip protocol')[0] |
| 51 | self.assertEqual(err, 1) |
| 52 | err_count = err |
| 53 | |
| 54 | # create gre tunnel |
| 55 | gre_if = VppGreInterface(self, self.pg0.local_ip4, "1.1.1.2") |
| 56 | gre_if.add_vpp_config() |
| 57 | |
| 58 | self.pg0.add_stream(pkt) |
| 59 | self.pg_start() |
| 60 | # tunnel created, gre-input registered |
| 61 | err = self.statistics.get_counter( |
| 62 | '/err/ip4-input/unknown ip protocol')[0] |
| 63 | # expect no new errors |
| 64 | self.assertEqual(err, err_count) |
| 65 | |
| 66 | |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 67 | class TestGRE(VppTestCase): |
| 68 | """ GRE Test Case """ |
| 69 | |
| 70 | @classmethod |
| 71 | def setUpClass(cls): |
| 72 | super(TestGRE, cls).setUpClass() |
| 73 | |
Paul Vinciguerra | 7f9b7f9 | 2019-03-12 19:23:27 -0700 | [diff] [blame] | 74 | @classmethod |
| 75 | def tearDownClass(cls): |
| 76 | super(TestGRE, cls).tearDownClass() |
| 77 | |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 78 | def setUp(self): |
| 79 | super(TestGRE, self).setUp() |
| 80 | |
Ciara Loftus | 7eac916 | 2016-09-30 15:47:03 +0100 | [diff] [blame] | 81 | # create 3 pg interfaces - set one in a non-default table. |
| 82 | self.create_pg_interfaces(range(3)) |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 83 | |
| 84 | self.tbl = VppIpTable(self, 1) |
| 85 | self.tbl.add_vpp_config() |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 86 | self.pg1.set_table_ip4(1) |
Ciara Loftus | 7eac916 | 2016-09-30 15:47:03 +0100 | [diff] [blame] | 87 | |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 88 | for i in self.pg_interfaces: |
| 89 | i.admin_up() |
Ciara Loftus | 7eac916 | 2016-09-30 15:47:03 +0100 | [diff] [blame] | 90 | |
| 91 | self.pg0.config_ip4() |
| 92 | self.pg0.resolve_arp() |
| 93 | self.pg1.config_ip4() |
| 94 | self.pg1.resolve_arp() |
| 95 | self.pg2.config_ip6() |
| 96 | self.pg2.resolve_ndp() |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 97 | |
| 98 | def tearDown(self): |
Neale Ranns | 4008ac9 | 2017-02-13 23:20:04 -0800 | [diff] [blame] | 99 | for i in self.pg_interfaces: |
| 100 | i.unconfig_ip4() |
| 101 | i.unconfig_ip6() |
| 102 | i.admin_down() |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 103 | self.pg1.set_table_ip4(0) |
| 104 | super(TestGRE, self).tearDown() |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 105 | |
| 106 | def create_stream_ip4(self, src_if, src_ip, dst_ip): |
| 107 | pkts = [] |
| 108 | for i in range(0, 257): |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 109 | info = self.create_packet_info(src_if, src_if) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 110 | payload = self.info_to_payload(info) |
| 111 | p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / |
| 112 | IP(src=src_ip, dst=dst_ip) / |
| 113 | UDP(sport=1234, dport=1234) / |
| 114 | Raw(payload)) |
| 115 | info.data = p.copy() |
| 116 | pkts.append(p) |
| 117 | return pkts |
| 118 | |
Ciara Loftus | 7eac916 | 2016-09-30 15:47:03 +0100 | [diff] [blame] | 119 | def create_stream_ip6(self, src_if, src_ip, dst_ip): |
| 120 | pkts = [] |
| 121 | for i in range(0, 257): |
| 122 | info = self.create_packet_info(src_if, src_if) |
| 123 | payload = self.info_to_payload(info) |
| 124 | p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / |
| 125 | IPv6(src=src_ip, dst=dst_ip) / |
| 126 | UDP(sport=1234, dport=1234) / |
| 127 | Raw(payload)) |
| 128 | info.data = p.copy() |
| 129 | pkts.append(p) |
| 130 | return pkts |
| 131 | |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 132 | def create_tunnel_stream_4o4(self, src_if, |
| 133 | tunnel_src, tunnel_dst, |
| 134 | src_ip, dst_ip): |
| 135 | pkts = [] |
| 136 | for i in range(0, 257): |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 137 | info = self.create_packet_info(src_if, src_if) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 138 | payload = self.info_to_payload(info) |
| 139 | p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / |
| 140 | IP(src=tunnel_src, dst=tunnel_dst) / |
| 141 | GRE() / |
| 142 | IP(src=src_ip, dst=dst_ip) / |
| 143 | UDP(sport=1234, dport=1234) / |
| 144 | Raw(payload)) |
| 145 | info.data = p.copy() |
| 146 | pkts.append(p) |
| 147 | return pkts |
| 148 | |
| 149 | def create_tunnel_stream_6o4(self, src_if, |
| 150 | tunnel_src, tunnel_dst, |
| 151 | src_ip, dst_ip): |
| 152 | pkts = [] |
| 153 | for i in range(0, 257): |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 154 | info = self.create_packet_info(src_if, src_if) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 155 | payload = self.info_to_payload(info) |
| 156 | p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / |
| 157 | IP(src=tunnel_src, dst=tunnel_dst) / |
| 158 | GRE() / |
| 159 | IPv6(src=src_ip, dst=dst_ip) / |
| 160 | UDP(sport=1234, dport=1234) / |
| 161 | Raw(payload)) |
| 162 | info.data = p.copy() |
| 163 | pkts.append(p) |
| 164 | return pkts |
| 165 | |
Ciara Loftus | 7eac916 | 2016-09-30 15:47:03 +0100 | [diff] [blame] | 166 | def create_tunnel_stream_6o6(self, src_if, |
| 167 | tunnel_src, tunnel_dst, |
| 168 | src_ip, dst_ip): |
| 169 | pkts = [] |
| 170 | for i in range(0, 257): |
| 171 | info = self.create_packet_info(src_if, src_if) |
| 172 | payload = self.info_to_payload(info) |
| 173 | p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / |
| 174 | IPv6(src=tunnel_src, dst=tunnel_dst) / |
| 175 | GRE() / |
| 176 | IPv6(src=src_ip, dst=dst_ip) / |
| 177 | UDP(sport=1234, dport=1234) / |
| 178 | Raw(payload)) |
| 179 | info.data = p.copy() |
| 180 | pkts.append(p) |
| 181 | return pkts |
| 182 | |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 183 | def create_tunnel_stream_l2o4(self, src_if, |
| 184 | tunnel_src, tunnel_dst): |
| 185 | pkts = [] |
| 186 | for i in range(0, 257): |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 187 | info = self.create_packet_info(src_if, src_if) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 188 | payload = self.info_to_payload(info) |
| 189 | p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / |
| 190 | IP(src=tunnel_src, dst=tunnel_dst) / |
| 191 | GRE() / |
| 192 | Ether(dst=RandMAC('*:*:*:*:*:*'), |
| 193 | src=RandMAC('*:*:*:*:*:*')) / |
Paul Vinciguerra | a7427ec | 2019-03-10 10:04:23 -0700 | [diff] [blame] | 194 | IP(src=scapy.compat.raw(RandIP()), |
| 195 | dst=scapy.compat.raw(RandIP())) / |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 196 | UDP(sport=1234, dport=1234) / |
| 197 | Raw(payload)) |
| 198 | info.data = p.copy() |
| 199 | pkts.append(p) |
| 200 | return pkts |
| 201 | |
| 202 | def create_tunnel_stream_vlano4(self, src_if, |
| 203 | tunnel_src, tunnel_dst, vlan): |
| 204 | pkts = [] |
| 205 | for i in range(0, 257): |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 206 | info = self.create_packet_info(src_if, src_if) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 207 | payload = self.info_to_payload(info) |
| 208 | p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / |
| 209 | IP(src=tunnel_src, dst=tunnel_dst) / |
| 210 | GRE() / |
| 211 | Ether(dst=RandMAC('*:*:*:*:*:*'), |
| 212 | src=RandMAC('*:*:*:*:*:*')) / |
| 213 | Dot1Q(vlan=vlan) / |
Paul Vinciguerra | a7427ec | 2019-03-10 10:04:23 -0700 | [diff] [blame] | 214 | IP(src=scapy.compat.raw(RandIP()), |
| 215 | dst=scapy.compat.raw(RandIP())) / |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 216 | UDP(sport=1234, dport=1234) / |
| 217 | Raw(payload)) |
| 218 | info.data = p.copy() |
| 219 | pkts.append(p) |
| 220 | return pkts |
| 221 | |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 222 | def verify_tunneled_4o4(self, src_if, capture, sent, |
| 223 | tunnel_src, tunnel_dst): |
| 224 | |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 225 | self.assertEqual(len(capture), len(sent)) |
| 226 | |
| 227 | for i in range(len(capture)): |
| 228 | try: |
| 229 | tx = sent[i] |
| 230 | rx = capture[i] |
| 231 | |
| 232 | tx_ip = tx[IP] |
| 233 | rx_ip = rx[IP] |
| 234 | |
| 235 | self.assertEqual(rx_ip.src, tunnel_src) |
| 236 | self.assertEqual(rx_ip.dst, tunnel_dst) |
| 237 | |
| 238 | rx_gre = rx[GRE] |
| 239 | rx_ip = rx_gre[IP] |
| 240 | |
| 241 | self.assertEqual(rx_ip.src, tx_ip.src) |
| 242 | self.assertEqual(rx_ip.dst, tx_ip.dst) |
| 243 | # IP processing post pop has decremented the TTL |
| 244 | self.assertEqual(rx_ip.ttl + 1, tx_ip.ttl) |
| 245 | |
| 246 | except: |
Klement Sekera | 9225dee | 2016-12-12 08:36:58 +0100 | [diff] [blame] | 247 | self.logger.error(ppp("Rx:", rx)) |
| 248 | self.logger.error(ppp("Tx:", tx)) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 249 | raise |
| 250 | |
Ciara Loftus | 7eac916 | 2016-09-30 15:47:03 +0100 | [diff] [blame] | 251 | def verify_tunneled_6o6(self, src_if, capture, sent, |
| 252 | tunnel_src, tunnel_dst): |
| 253 | |
| 254 | self.assertEqual(len(capture), len(sent)) |
| 255 | |
| 256 | for i in range(len(capture)): |
| 257 | try: |
| 258 | tx = sent[i] |
| 259 | rx = capture[i] |
| 260 | |
| 261 | tx_ip = tx[IPv6] |
| 262 | rx_ip = rx[IPv6] |
| 263 | |
| 264 | self.assertEqual(rx_ip.src, tunnel_src) |
| 265 | self.assertEqual(rx_ip.dst, tunnel_dst) |
| 266 | |
Paul Vinciguerra | a7427ec | 2019-03-10 10:04:23 -0700 | [diff] [blame] | 267 | rx_gre = GRE(scapy.compat.raw(rx_ip[IPv6].payload)) |
Ciara Loftus | 7eac916 | 2016-09-30 15:47:03 +0100 | [diff] [blame] | 268 | rx_ip = rx_gre[IPv6] |
| 269 | |
| 270 | self.assertEqual(rx_ip.src, tx_ip.src) |
| 271 | self.assertEqual(rx_ip.dst, tx_ip.dst) |
| 272 | |
| 273 | except: |
| 274 | self.logger.error(ppp("Rx:", rx)) |
| 275 | self.logger.error(ppp("Tx:", tx)) |
| 276 | raise |
| 277 | |
Neale Ranns | 2646c80 | 2018-09-19 04:55:32 -0700 | [diff] [blame] | 278 | def verify_tunneled_4o6(self, src_if, capture, sent, |
| 279 | tunnel_src, tunnel_dst): |
| 280 | |
| 281 | self.assertEqual(len(capture), len(sent)) |
| 282 | |
| 283 | for i in range(len(capture)): |
| 284 | try: |
| 285 | tx = sent[i] |
| 286 | rx = capture[i] |
| 287 | |
| 288 | rx_ip = rx[IPv6] |
| 289 | |
| 290 | self.assertEqual(rx_ip.src, tunnel_src) |
| 291 | self.assertEqual(rx_ip.dst, tunnel_dst) |
| 292 | |
Paul Vinciguerra | a7427ec | 2019-03-10 10:04:23 -0700 | [diff] [blame] | 293 | rx_gre = GRE(scapy.compat.raw(rx_ip[IPv6].payload)) |
Neale Ranns | 2646c80 | 2018-09-19 04:55:32 -0700 | [diff] [blame] | 294 | tx_ip = tx[IP] |
| 295 | rx_ip = rx_gre[IP] |
| 296 | |
| 297 | self.assertEqual(rx_ip.src, tx_ip.src) |
| 298 | self.assertEqual(rx_ip.dst, tx_ip.dst) |
| 299 | |
| 300 | except: |
| 301 | self.logger.error(ppp("Rx:", rx)) |
| 302 | self.logger.error(ppp("Tx:", tx)) |
| 303 | raise |
| 304 | |
| 305 | def verify_tunneled_6o4(self, src_if, capture, sent, |
| 306 | tunnel_src, tunnel_dst): |
| 307 | |
| 308 | self.assertEqual(len(capture), len(sent)) |
| 309 | |
| 310 | for i in range(len(capture)): |
| 311 | try: |
| 312 | tx = sent[i] |
| 313 | rx = capture[i] |
| 314 | |
| 315 | rx_ip = rx[IP] |
| 316 | |
| 317 | self.assertEqual(rx_ip.src, tunnel_src) |
| 318 | self.assertEqual(rx_ip.dst, tunnel_dst) |
| 319 | |
Paul Vinciguerra | a7427ec | 2019-03-10 10:04:23 -0700 | [diff] [blame] | 320 | rx_gre = GRE(scapy.compat.raw(rx_ip[IP].payload)) |
Neale Ranns | 2646c80 | 2018-09-19 04:55:32 -0700 | [diff] [blame] | 321 | rx_ip = rx_gre[IPv6] |
| 322 | tx_ip = tx[IPv6] |
| 323 | |
| 324 | self.assertEqual(rx_ip.src, tx_ip.src) |
| 325 | self.assertEqual(rx_ip.dst, tx_ip.dst) |
| 326 | |
| 327 | except: |
| 328 | self.logger.error(ppp("Rx:", rx)) |
| 329 | self.logger.error(ppp("Tx:", tx)) |
| 330 | raise |
| 331 | |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 332 | def verify_tunneled_l2o4(self, src_if, capture, sent, |
| 333 | tunnel_src, tunnel_dst): |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 334 | self.assertEqual(len(capture), len(sent)) |
| 335 | |
| 336 | for i in range(len(capture)): |
| 337 | try: |
| 338 | tx = sent[i] |
| 339 | rx = capture[i] |
| 340 | |
| 341 | tx_ip = tx[IP] |
| 342 | rx_ip = rx[IP] |
| 343 | |
| 344 | self.assertEqual(rx_ip.src, tunnel_src) |
| 345 | self.assertEqual(rx_ip.dst, tunnel_dst) |
| 346 | |
| 347 | rx_gre = rx[GRE] |
| 348 | rx_l2 = rx_gre[Ether] |
| 349 | rx_ip = rx_l2[IP] |
| 350 | tx_gre = tx[GRE] |
| 351 | tx_l2 = tx_gre[Ether] |
| 352 | tx_ip = tx_l2[IP] |
| 353 | |
| 354 | self.assertEqual(rx_ip.src, tx_ip.src) |
| 355 | self.assertEqual(rx_ip.dst, tx_ip.dst) |
| 356 | # bridged, not L3 forwarded, so no TTL decrement |
| 357 | self.assertEqual(rx_ip.ttl, tx_ip.ttl) |
| 358 | |
| 359 | except: |
Klement Sekera | 9225dee | 2016-12-12 08:36:58 +0100 | [diff] [blame] | 360 | self.logger.error(ppp("Rx:", rx)) |
| 361 | self.logger.error(ppp("Tx:", tx)) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 362 | raise |
| 363 | |
| 364 | def verify_tunneled_vlano4(self, src_if, capture, sent, |
| 365 | tunnel_src, tunnel_dst, vlan): |
| 366 | try: |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 367 | self.assertEqual(len(capture), len(sent)) |
| 368 | except: |
Klement Sekera | 9225dee | 2016-12-12 08:36:58 +0100 | [diff] [blame] | 369 | ppc("Unexpected packets captured:", capture) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 370 | raise |
| 371 | |
| 372 | for i in range(len(capture)): |
| 373 | try: |
| 374 | tx = sent[i] |
| 375 | rx = capture[i] |
| 376 | |
| 377 | tx_ip = tx[IP] |
| 378 | rx_ip = rx[IP] |
| 379 | |
| 380 | self.assertEqual(rx_ip.src, tunnel_src) |
| 381 | self.assertEqual(rx_ip.dst, tunnel_dst) |
| 382 | |
| 383 | rx_gre = rx[GRE] |
| 384 | rx_l2 = rx_gre[Ether] |
| 385 | rx_vlan = rx_l2[Dot1Q] |
| 386 | rx_ip = rx_l2[IP] |
| 387 | |
| 388 | self.assertEqual(rx_vlan.vlan, vlan) |
| 389 | |
| 390 | tx_gre = tx[GRE] |
| 391 | tx_l2 = tx_gre[Ether] |
| 392 | tx_ip = tx_l2[IP] |
| 393 | |
| 394 | self.assertEqual(rx_ip.src, tx_ip.src) |
| 395 | self.assertEqual(rx_ip.dst, tx_ip.dst) |
| 396 | # bridged, not L3 forwarded, so no TTL decrement |
| 397 | self.assertEqual(rx_ip.ttl, tx_ip.ttl) |
| 398 | |
| 399 | except: |
Klement Sekera | 9225dee | 2016-12-12 08:36:58 +0100 | [diff] [blame] | 400 | self.logger.error(ppp("Rx:", rx)) |
| 401 | self.logger.error(ppp("Tx:", tx)) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 402 | raise |
| 403 | |
| 404 | def verify_decapped_4o4(self, src_if, capture, sent): |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 405 | self.assertEqual(len(capture), len(sent)) |
| 406 | |
| 407 | for i in range(len(capture)): |
| 408 | try: |
| 409 | tx = sent[i] |
| 410 | rx = capture[i] |
| 411 | |
| 412 | tx_ip = tx[IP] |
| 413 | rx_ip = rx[IP] |
| 414 | tx_gre = tx[GRE] |
| 415 | tx_ip = tx_gre[IP] |
| 416 | |
| 417 | self.assertEqual(rx_ip.src, tx_ip.src) |
| 418 | self.assertEqual(rx_ip.dst, tx_ip.dst) |
| 419 | # IP processing post pop has decremented the TTL |
| 420 | self.assertEqual(rx_ip.ttl + 1, tx_ip.ttl) |
| 421 | |
| 422 | except: |
Klement Sekera | 9225dee | 2016-12-12 08:36:58 +0100 | [diff] [blame] | 423 | self.logger.error(ppp("Rx:", rx)) |
| 424 | self.logger.error(ppp("Tx:", tx)) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 425 | raise |
| 426 | |
| 427 | def verify_decapped_6o4(self, src_if, capture, sent): |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 428 | self.assertEqual(len(capture), len(sent)) |
| 429 | |
| 430 | for i in range(len(capture)): |
| 431 | try: |
| 432 | tx = sent[i] |
| 433 | rx = capture[i] |
| 434 | |
| 435 | tx_ip = tx[IP] |
| 436 | rx_ip = rx[IPv6] |
| 437 | tx_gre = tx[GRE] |
| 438 | tx_ip = tx_gre[IPv6] |
| 439 | |
| 440 | self.assertEqual(rx_ip.src, tx_ip.src) |
| 441 | self.assertEqual(rx_ip.dst, tx_ip.dst) |
| 442 | self.assertEqual(rx_ip.hlim + 1, tx_ip.hlim) |
| 443 | |
| 444 | except: |
Klement Sekera | 9225dee | 2016-12-12 08:36:58 +0100 | [diff] [blame] | 445 | self.logger.error(ppp("Rx:", rx)) |
| 446 | self.logger.error(ppp("Tx:", tx)) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 447 | raise |
| 448 | |
| 449 | def test_gre(self): |
Ciara Loftus | 7eac916 | 2016-09-30 15:47:03 +0100 | [diff] [blame] | 450 | """ GRE IPv4 tunnel Tests """ |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 451 | |
| 452 | # |
| 453 | # Create an L3 GRE tunnel. |
| 454 | # - set it admin up |
| 455 | # - assign an IP Addres |
| 456 | # - Add a route via the tunnel |
| 457 | # |
| 458 | gre_if = VppGreInterface(self, |
| 459 | self.pg0.local_ip4, |
| 460 | "1.1.1.2") |
| 461 | gre_if.add_vpp_config() |
| 462 | |
| 463 | # |
| 464 | # The double create (create the same tunnel twice) should fail, |
| 465 | # and we should still be able to use the original |
| 466 | # |
| 467 | try: |
| 468 | gre_if.add_vpp_config() |
| 469 | except Exception: |
| 470 | pass |
| 471 | else: |
| 472 | self.fail("Double GRE tunnel add does not fail") |
| 473 | |
| 474 | gre_if.admin_up() |
| 475 | gre_if.config_ip4() |
| 476 | |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 477 | route_via_tun = VppIpRoute(self, "4.4.4.4", 32, |
| 478 | [VppRoutePath("0.0.0.0", |
| 479 | gre_if.sw_if_index)]) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 480 | |
| 481 | route_via_tun.add_vpp_config() |
| 482 | |
| 483 | # |
| 484 | # Send a packet stream that is routed into the tunnel |
Jim Thompson | f324dec | 2019-04-08 03:22:21 -0500 | [diff] [blame] | 485 | # - they are all dropped since the tunnel's destintation IP |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 486 | # is unresolved - or resolves via the default route - which |
| 487 | # which is a drop. |
| 488 | # |
| 489 | tx = self.create_stream_ip4(self.pg0, "5.5.5.5", "4.4.4.4") |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 490 | |
Neale Ranns | 5588225 | 2018-11-29 08:48:37 +0000 | [diff] [blame] | 491 | self.send_and_assert_no_replies(self.pg0, tx) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 492 | |
| 493 | # |
| 494 | # Add a route that resolves the tunnel's destination |
| 495 | # |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 496 | route_tun_dst = VppIpRoute(self, "1.1.1.2", 32, |
| 497 | [VppRoutePath(self.pg0.remote_ip4, |
| 498 | self.pg0.sw_if_index)]) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 499 | route_tun_dst.add_vpp_config() |
| 500 | |
| 501 | # |
| 502 | # Send a packet stream that is routed into the tunnel |
| 503 | # - packets are GRE encapped |
| 504 | # |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 505 | tx = self.create_stream_ip4(self.pg0, "5.5.5.5", "4.4.4.4") |
Neale Ranns | 5588225 | 2018-11-29 08:48:37 +0000 | [diff] [blame] | 506 | rx = self.send_and_expect(self.pg0, tx, self.pg0) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 507 | self.verify_tunneled_4o4(self.pg0, rx, tx, |
| 508 | self.pg0.local_ip4, "1.1.1.2") |
| 509 | |
| 510 | # |
| 511 | # Send tunneled packets that match the created tunnel and |
| 512 | # are decapped and forwarded |
| 513 | # |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 514 | tx = self.create_tunnel_stream_4o4(self.pg0, |
| 515 | "1.1.1.2", |
| 516 | self.pg0.local_ip4, |
| 517 | self.pg0.local_ip4, |
| 518 | self.pg0.remote_ip4) |
Neale Ranns | 5588225 | 2018-11-29 08:48:37 +0000 | [diff] [blame] | 519 | rx = self.send_and_expect(self.pg0, tx, self.pg0) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 520 | self.verify_decapped_4o4(self.pg0, rx, tx) |
| 521 | |
| 522 | # |
| 523 | # Send tunneled packets that do not match the tunnel's src |
| 524 | # |
| 525 | self.vapi.cli("clear trace") |
| 526 | tx = self.create_tunnel_stream_4o4(self.pg0, |
| 527 | "1.1.1.3", |
| 528 | self.pg0.local_ip4, |
| 529 | self.pg0.local_ip4, |
| 530 | self.pg0.remote_ip4) |
Neale Ranns | 5588225 | 2018-11-29 08:48:37 +0000 | [diff] [blame] | 531 | self.send_and_assert_no_replies( |
| 532 | self.pg0, tx, |
Klement Sekera | 9225dee | 2016-12-12 08:36:58 +0100 | [diff] [blame] | 533 | remark="GRE packets forwarded despite no SRC address match") |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 534 | |
| 535 | # |
| 536 | # Configure IPv6 on the PG interface so we can route IPv6 |
| 537 | # packets |
| 538 | # |
| 539 | self.pg0.config_ip6() |
| 540 | self.pg0.resolve_ndp() |
| 541 | |
| 542 | # |
| 543 | # Send IPv6 tunnel encapslated packets |
| 544 | # - dropped since IPv6 is not enabled on the tunnel |
| 545 | # |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 546 | tx = self.create_tunnel_stream_6o4(self.pg0, |
| 547 | "1.1.1.2", |
| 548 | self.pg0.local_ip4, |
| 549 | self.pg0.local_ip6, |
| 550 | self.pg0.remote_ip6) |
Neale Ranns | 5588225 | 2018-11-29 08:48:37 +0000 | [diff] [blame] | 551 | self.send_and_assert_no_replies(self.pg0, tx, |
| 552 | "IPv6 GRE packets forwarded " |
| 553 | "despite IPv6 not enabled on tunnel") |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 554 | |
| 555 | # |
| 556 | # Enable IPv6 on the tunnel |
| 557 | # |
| 558 | gre_if.config_ip6() |
| 559 | |
| 560 | # |
| 561 | # Send IPv6 tunnel encapslated packets |
| 562 | # - forwarded since IPv6 is enabled on the tunnel |
| 563 | # |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 564 | tx = self.create_tunnel_stream_6o4(self.pg0, |
| 565 | "1.1.1.2", |
| 566 | self.pg0.local_ip4, |
| 567 | self.pg0.local_ip6, |
| 568 | self.pg0.remote_ip6) |
Neale Ranns | 5588225 | 2018-11-29 08:48:37 +0000 | [diff] [blame] | 569 | rx = self.send_and_expect(self.pg0, tx, self.pg0) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 570 | self.verify_decapped_6o4(self.pg0, rx, tx) |
| 571 | |
| 572 | # |
Neale Ranns | 2646c80 | 2018-09-19 04:55:32 -0700 | [diff] [blame] | 573 | # Send v6 packets for v4 encap |
| 574 | # |
| 575 | route6_via_tun = VppIpRoute( |
| 576 | self, "2001::1", 128, |
| 577 | [VppRoutePath("::", |
| 578 | gre_if.sw_if_index, |
| 579 | proto=DpoProto.DPO_PROTO_IP6)], |
| 580 | is_ip6=1) |
| 581 | route6_via_tun.add_vpp_config() |
| 582 | |
| 583 | tx = self.create_stream_ip6(self.pg0, "2001::2", "2001::1") |
| 584 | rx = self.send_and_expect(self.pg0, tx, self.pg0) |
| 585 | |
| 586 | self.verify_tunneled_6o4(self.pg0, rx, tx, |
| 587 | self.pg0.local_ip4, "1.1.1.2") |
| 588 | |
| 589 | # |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 590 | # test case cleanup |
| 591 | # |
| 592 | route_tun_dst.remove_vpp_config() |
| 593 | route_via_tun.remove_vpp_config() |
Neale Ranns | 2646c80 | 2018-09-19 04:55:32 -0700 | [diff] [blame] | 594 | route6_via_tun.remove_vpp_config() |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 595 | gre_if.remove_vpp_config() |
| 596 | |
| 597 | self.pg0.unconfig_ip6() |
| 598 | |
Ciara Loftus | 7eac916 | 2016-09-30 15:47:03 +0100 | [diff] [blame] | 599 | def test_gre6(self): |
| 600 | """ GRE IPv6 tunnel Tests """ |
| 601 | |
Neale Ranns | 8716e6b | 2017-12-13 02:47:27 -0800 | [diff] [blame] | 602 | self.pg1.config_ip6() |
| 603 | self.pg1.resolve_ndp() |
| 604 | |
Ciara Loftus | 7eac916 | 2016-09-30 15:47:03 +0100 | [diff] [blame] | 605 | # |
| 606 | # Create an L3 GRE tunnel. |
| 607 | # - set it admin up |
| 608 | # - assign an IP Address |
| 609 | # - Add a route via the tunnel |
| 610 | # |
Neale Ranns | 5a8844b | 2019-04-16 07:15:35 +0000 | [diff] [blame] | 611 | gre_if = VppGreInterface(self, |
| 612 | self.pg2.local_ip6, |
| 613 | "1002::1") |
Ciara Loftus | 7eac916 | 2016-09-30 15:47:03 +0100 | [diff] [blame] | 614 | gre_if.add_vpp_config() |
| 615 | gre_if.admin_up() |
| 616 | gre_if.config_ip6() |
| 617 | |
Neale Ranns | da78f95 | 2017-05-24 09:15:43 -0700 | [diff] [blame] | 618 | route_via_tun = VppIpRoute( |
| 619 | self, "4004::1", 128, |
| 620 | [VppRoutePath("0::0", |
| 621 | gre_if.sw_if_index, |
| 622 | proto=DpoProto.DPO_PROTO_IP6)], |
| 623 | is_ip6=1) |
Ciara Loftus | 7eac916 | 2016-09-30 15:47:03 +0100 | [diff] [blame] | 624 | |
| 625 | route_via_tun.add_vpp_config() |
| 626 | |
| 627 | # |
| 628 | # Send a packet stream that is routed into the tunnel |
Jim Thompson | f324dec | 2019-04-08 03:22:21 -0500 | [diff] [blame] | 629 | # - they are all dropped since the tunnel's destintation IP |
Ciara Loftus | 7eac916 | 2016-09-30 15:47:03 +0100 | [diff] [blame] | 630 | # is unresolved - or resolves via the default route - which |
| 631 | # which is a drop. |
| 632 | # |
| 633 | tx = self.create_stream_ip6(self.pg2, "5005::1", "4004::1") |
Neale Ranns | 5588225 | 2018-11-29 08:48:37 +0000 | [diff] [blame] | 634 | self.send_and_assert_no_replies( |
| 635 | self.pg2, tx, |
| 636 | "GRE packets forwarded without DIP resolved") |
Ciara Loftus | 7eac916 | 2016-09-30 15:47:03 +0100 | [diff] [blame] | 637 | |
| 638 | # |
| 639 | # Add a route that resolves the tunnel's destination |
| 640 | # |
Neale Ranns | da78f95 | 2017-05-24 09:15:43 -0700 | [diff] [blame] | 641 | route_tun_dst = VppIpRoute( |
| 642 | self, "1002::1", 128, |
| 643 | [VppRoutePath(self.pg2.remote_ip6, |
| 644 | self.pg2.sw_if_index, |
| 645 | proto=DpoProto.DPO_PROTO_IP6)], |
| 646 | is_ip6=1) |
Ciara Loftus | 7eac916 | 2016-09-30 15:47:03 +0100 | [diff] [blame] | 647 | route_tun_dst.add_vpp_config() |
| 648 | |
| 649 | # |
| 650 | # Send a packet stream that is routed into the tunnel |
| 651 | # - packets are GRE encapped |
| 652 | # |
Ciara Loftus | 7eac916 | 2016-09-30 15:47:03 +0100 | [diff] [blame] | 653 | tx = self.create_stream_ip6(self.pg2, "5005::1", "4004::1") |
Neale Ranns | 5588225 | 2018-11-29 08:48:37 +0000 | [diff] [blame] | 654 | rx = self.send_and_expect(self.pg2, tx, self.pg2) |
Ciara Loftus | 7eac916 | 2016-09-30 15:47:03 +0100 | [diff] [blame] | 655 | self.verify_tunneled_6o6(self.pg2, rx, tx, |
| 656 | self.pg2.local_ip6, "1002::1") |
| 657 | |
| 658 | # |
Neale Ranns | 8716e6b | 2017-12-13 02:47:27 -0800 | [diff] [blame] | 659 | # Test decap. decapped packets go out pg1 |
| 660 | # |
| 661 | tx = self.create_tunnel_stream_6o6(self.pg2, |
| 662 | "1002::1", |
| 663 | self.pg2.local_ip6, |
| 664 | "2001::1", |
| 665 | self.pg1.remote_ip6) |
Neale Ranns | 5588225 | 2018-11-29 08:48:37 +0000 | [diff] [blame] | 666 | rx = self.send_and_expect(self.pg2, tx, self.pg1) |
Neale Ranns | 8716e6b | 2017-12-13 02:47:27 -0800 | [diff] [blame] | 667 | |
| 668 | # |
| 669 | # RX'd packet is UDP over IPv6, test the GRE header is gone. |
| 670 | # |
| 671 | self.assertFalse(rx[0].haslayer(GRE)) |
| 672 | self.assertEqual(rx[0][IPv6].dst, self.pg1.remote_ip6) |
| 673 | |
| 674 | # |
Neale Ranns | 2646c80 | 2018-09-19 04:55:32 -0700 | [diff] [blame] | 675 | # Send v4 over v6 |
| 676 | # |
| 677 | route4_via_tun = VppIpRoute(self, "1.1.1.1", 32, |
| 678 | [VppRoutePath("0.0.0.0", |
| 679 | gre_if.sw_if_index)]) |
| 680 | route4_via_tun.add_vpp_config() |
| 681 | |
| 682 | tx = self.create_stream_ip4(self.pg0, "1.1.1.2", "1.1.1.1") |
| 683 | rx = self.send_and_expect(self.pg0, tx, self.pg2) |
| 684 | |
| 685 | self.verify_tunneled_4o6(self.pg0, rx, tx, |
| 686 | self.pg2.local_ip6, "1002::1") |
| 687 | |
| 688 | # |
Ciara Loftus | 7eac916 | 2016-09-30 15:47:03 +0100 | [diff] [blame] | 689 | # test case cleanup |
| 690 | # |
| 691 | route_tun_dst.remove_vpp_config() |
| 692 | route_via_tun.remove_vpp_config() |
Neale Ranns | 2646c80 | 2018-09-19 04:55:32 -0700 | [diff] [blame] | 693 | route4_via_tun.remove_vpp_config() |
Ciara Loftus | 7eac916 | 2016-09-30 15:47:03 +0100 | [diff] [blame] | 694 | gre_if.remove_vpp_config() |
| 695 | |
| 696 | self.pg2.unconfig_ip6() |
Neale Ranns | 8716e6b | 2017-12-13 02:47:27 -0800 | [diff] [blame] | 697 | self.pg1.unconfig_ip6() |
Ciara Loftus | 7eac916 | 2016-09-30 15:47:03 +0100 | [diff] [blame] | 698 | |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 699 | def test_gre_vrf(self): |
| 700 | """ GRE tunnel VRF Tests """ |
| 701 | |
| 702 | # |
| 703 | # Create an L3 GRE tunnel whose destination is in the non-default |
| 704 | # table. The underlay is thus non-default - the overlay is still |
| 705 | # the default. |
| 706 | # - set it admin up |
| 707 | # - assign an IP Addres |
| 708 | # |
| 709 | gre_if = VppGreInterface(self, self.pg1.local_ip4, |
| 710 | "2.2.2.2", |
| 711 | outer_fib_id=1) |
| 712 | gre_if.add_vpp_config() |
| 713 | gre_if.admin_up() |
| 714 | gre_if.config_ip4() |
| 715 | |
| 716 | # |
| 717 | # Add a route via the tunnel - in the overlay |
| 718 | # |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 719 | route_via_tun = VppIpRoute(self, "9.9.9.9", 32, |
| 720 | [VppRoutePath("0.0.0.0", |
| 721 | gre_if.sw_if_index)]) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 722 | route_via_tun.add_vpp_config() |
| 723 | |
| 724 | # |
| 725 | # Add a route that resolves the tunnel's destination - in the |
| 726 | # underlay table |
| 727 | # |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 728 | route_tun_dst = VppIpRoute(self, "2.2.2.2", 32, table_id=1, |
| 729 | paths=[VppRoutePath(self.pg1.remote_ip4, |
| 730 | self.pg1.sw_if_index)]) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 731 | route_tun_dst.add_vpp_config() |
| 732 | |
| 733 | # |
| 734 | # Send a packet stream that is routed into the tunnel |
| 735 | # packets are sent in on pg0 which is in the default table |
| 736 | # - packets are GRE encapped |
| 737 | # |
| 738 | self.vapi.cli("clear trace") |
| 739 | tx = self.create_stream_ip4(self.pg0, "5.5.5.5", "9.9.9.9") |
Neale Ranns | 5588225 | 2018-11-29 08:48:37 +0000 | [diff] [blame] | 740 | rx = self.send_and_expect(self.pg0, tx, self.pg1) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 741 | self.verify_tunneled_4o4(self.pg1, rx, tx, |
| 742 | self.pg1.local_ip4, "2.2.2.2") |
| 743 | |
| 744 | # |
| 745 | # Send tunneled packets that match the created tunnel and |
| 746 | # are decapped and forwarded. This tests the decap lookup |
| 747 | # does not happen in the encap table |
| 748 | # |
| 749 | self.vapi.cli("clear trace") |
| 750 | tx = self.create_tunnel_stream_4o4(self.pg1, |
| 751 | "2.2.2.2", |
| 752 | self.pg1.local_ip4, |
| 753 | self.pg0.local_ip4, |
| 754 | self.pg0.remote_ip4) |
Neale Ranns | 5588225 | 2018-11-29 08:48:37 +0000 | [diff] [blame] | 755 | rx = self.send_and_expect(self.pg1, tx, self.pg0) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 756 | self.verify_decapped_4o4(self.pg0, rx, tx) |
| 757 | |
| 758 | # |
Neale Ranns | 743ee3e | 2018-11-29 08:24:38 +0000 | [diff] [blame] | 759 | # Send tunneled packets that match the created tunnel |
Neale Ranns | 33ce60d | 2017-12-14 08:51:32 -0800 | [diff] [blame] | 760 | # but arrive on an interface that is not in the tunnel's |
Neale Ranns | 743ee3e | 2018-11-29 08:24:38 +0000 | [diff] [blame] | 761 | # encap VRF, these are dropped. |
| 762 | # IP enable the interface so they aren't dropped due to |
| 763 | # IP not being enabled. |
Neale Ranns | 33ce60d | 2017-12-14 08:51:32 -0800 | [diff] [blame] | 764 | # |
Neale Ranns | 743ee3e | 2018-11-29 08:24:38 +0000 | [diff] [blame] | 765 | self.pg2.config_ip4() |
Neale Ranns | 33ce60d | 2017-12-14 08:51:32 -0800 | [diff] [blame] | 766 | self.vapi.cli("clear trace") |
| 767 | tx = self.create_tunnel_stream_4o4(self.pg2, |
| 768 | "2.2.2.2", |
| 769 | self.pg1.local_ip4, |
| 770 | self.pg0.local_ip4, |
| 771 | self.pg0.remote_ip4) |
Neale Ranns | 5588225 | 2018-11-29 08:48:37 +0000 | [diff] [blame] | 772 | rx = self.send_and_assert_no_replies( |
| 773 | self.pg2, tx, |
| 774 | "GRE decap packets in wrong VRF") |
Neale Ranns | 33ce60d | 2017-12-14 08:51:32 -0800 | [diff] [blame] | 775 | |
Neale Ranns | 743ee3e | 2018-11-29 08:24:38 +0000 | [diff] [blame] | 776 | self.pg2.unconfig_ip4() |
| 777 | |
Neale Ranns | 33ce60d | 2017-12-14 08:51:32 -0800 | [diff] [blame] | 778 | # |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 779 | # test case cleanup |
| 780 | # |
| 781 | route_tun_dst.remove_vpp_config() |
| 782 | route_via_tun.remove_vpp_config() |
| 783 | gre_if.remove_vpp_config() |
| 784 | |
| 785 | def test_gre_l2(self): |
| 786 | """ GRE tunnel L2 Tests """ |
| 787 | |
| 788 | # |
| 789 | # Add routes to resolve the tunnel destinations |
| 790 | # |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 791 | route_tun1_dst = VppIpRoute(self, "2.2.2.2", 32, |
| 792 | [VppRoutePath(self.pg0.remote_ip4, |
| 793 | self.pg0.sw_if_index)]) |
| 794 | route_tun2_dst = VppIpRoute(self, "2.2.2.3", 32, |
| 795 | [VppRoutePath(self.pg0.remote_ip4, |
| 796 | self.pg0.sw_if_index)]) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 797 | |
| 798 | route_tun1_dst.add_vpp_config() |
| 799 | route_tun2_dst.add_vpp_config() |
| 800 | |
| 801 | # |
| 802 | # Create 2 L2 GRE tunnels and x-connect them |
| 803 | # |
| 804 | gre_if1 = VppGreInterface(self, self.pg0.local_ip4, |
| 805 | "2.2.2.2", |
Neale Ranns | 5a8844b | 2019-04-16 07:15:35 +0000 | [diff] [blame] | 806 | type=(VppEnum.vl_api_gre_tunnel_type_t. |
| 807 | GRE_API_TUNNEL_TYPE_TEB)) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 808 | gre_if2 = VppGreInterface(self, self.pg0.local_ip4, |
| 809 | "2.2.2.3", |
Neale Ranns | 5a8844b | 2019-04-16 07:15:35 +0000 | [diff] [blame] | 810 | type=(VppEnum.vl_api_gre_tunnel_type_t. |
| 811 | GRE_API_TUNNEL_TYPE_TEB)) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 812 | gre_if1.add_vpp_config() |
| 813 | gre_if2.add_vpp_config() |
| 814 | |
| 815 | gre_if1.admin_up() |
| 816 | gre_if2.admin_up() |
| 817 | |
| 818 | self.vapi.sw_interface_set_l2_xconnect(gre_if1.sw_if_index, |
| 819 | gre_if2.sw_if_index, |
| 820 | enable=1) |
| 821 | self.vapi.sw_interface_set_l2_xconnect(gre_if2.sw_if_index, |
| 822 | gre_if1.sw_if_index, |
| 823 | enable=1) |
| 824 | |
| 825 | # |
| 826 | # Send in tunnel encapped L2. expect out tunnel encapped L2 |
| 827 | # in both directions |
| 828 | # |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 829 | tx = self.create_tunnel_stream_l2o4(self.pg0, |
| 830 | "2.2.2.2", |
| 831 | self.pg0.local_ip4) |
Neale Ranns | 5588225 | 2018-11-29 08:48:37 +0000 | [diff] [blame] | 832 | rx = self.send_and_expect(self.pg0, tx, self.pg0) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 833 | self.verify_tunneled_l2o4(self.pg0, rx, tx, |
| 834 | self.pg0.local_ip4, |
| 835 | "2.2.2.3") |
| 836 | |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 837 | tx = self.create_tunnel_stream_l2o4(self.pg0, |
| 838 | "2.2.2.3", |
| 839 | self.pg0.local_ip4) |
Neale Ranns | 5588225 | 2018-11-29 08:48:37 +0000 | [diff] [blame] | 840 | rx = self.send_and_expect(self.pg0, tx, self.pg0) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 841 | self.verify_tunneled_l2o4(self.pg0, rx, tx, |
| 842 | self.pg0.local_ip4, |
| 843 | "2.2.2.2") |
| 844 | |
| 845 | self.vapi.sw_interface_set_l2_xconnect(gre_if1.sw_if_index, |
| 846 | gre_if2.sw_if_index, |
| 847 | enable=0) |
| 848 | self.vapi.sw_interface_set_l2_xconnect(gre_if2.sw_if_index, |
| 849 | gre_if1.sw_if_index, |
| 850 | enable=0) |
| 851 | |
| 852 | # |
| 853 | # Create a VLAN sub-interfaces on the GRE TEB interfaces |
| 854 | # then x-connect them |
| 855 | # |
| 856 | gre_if_11 = VppDot1QSubint(self, gre_if1, 11) |
| 857 | gre_if_12 = VppDot1QSubint(self, gre_if2, 12) |
| 858 | |
| 859 | # gre_if_11.add_vpp_config() |
| 860 | # gre_if_12.add_vpp_config() |
| 861 | |
| 862 | gre_if_11.admin_up() |
| 863 | gre_if_12.admin_up() |
| 864 | |
| 865 | self.vapi.sw_interface_set_l2_xconnect(gre_if_11.sw_if_index, |
| 866 | gre_if_12.sw_if_index, |
| 867 | enable=1) |
| 868 | self.vapi.sw_interface_set_l2_xconnect(gre_if_12.sw_if_index, |
| 869 | gre_if_11.sw_if_index, |
| 870 | enable=1) |
| 871 | |
| 872 | # |
| 873 | # Configure both to pop thier respective VLAN tags, |
| 874 | # so that during the x-coonect they will subsequently push |
| 875 | # |
Ole Troan | a5b2eec | 2019-03-11 19:23:25 +0100 | [diff] [blame] | 876 | self.vapi.l2_interface_vlan_tag_rewrite( |
| 877 | sw_if_index=gre_if_12.sw_if_index, vtr_op=L2_VTR_OP.L2_POP_1, |
| 878 | push_dot1q=12) |
| 879 | self.vapi.l2_interface_vlan_tag_rewrite( |
| 880 | sw_if_index=gre_if_11.sw_if_index, vtr_op=L2_VTR_OP.L2_POP_1, |
| 881 | push_dot1q=11) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 882 | |
| 883 | # |
| 884 | # Send traffic in both directiond - expect the VLAN tags to |
| 885 | # be swapped. |
| 886 | # |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 887 | tx = self.create_tunnel_stream_vlano4(self.pg0, |
| 888 | "2.2.2.2", |
| 889 | self.pg0.local_ip4, |
| 890 | 11) |
Neale Ranns | 5588225 | 2018-11-29 08:48:37 +0000 | [diff] [blame] | 891 | rx = self.send_and_expect(self.pg0, tx, self.pg0) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 892 | self.verify_tunneled_vlano4(self.pg0, rx, tx, |
| 893 | self.pg0.local_ip4, |
| 894 | "2.2.2.3", |
| 895 | 12) |
| 896 | |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 897 | tx = self.create_tunnel_stream_vlano4(self.pg0, |
| 898 | "2.2.2.3", |
| 899 | self.pg0.local_ip4, |
| 900 | 12) |
Neale Ranns | 5588225 | 2018-11-29 08:48:37 +0000 | [diff] [blame] | 901 | rx = self.send_and_expect(self.pg0, tx, self.pg0) |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 902 | self.verify_tunneled_vlano4(self.pg0, rx, tx, |
| 903 | self.pg0.local_ip4, |
| 904 | "2.2.2.2", |
| 905 | 11) |
| 906 | |
| 907 | # |
| 908 | # Cleanup Test resources |
| 909 | # |
| 910 | gre_if_11.remove_vpp_config() |
| 911 | gre_if_12.remove_vpp_config() |
| 912 | gre_if1.remove_vpp_config() |
| 913 | gre_if2.remove_vpp_config() |
| 914 | route_tun1_dst.add_vpp_config() |
| 915 | route_tun2_dst.add_vpp_config() |
| 916 | |
Neale Ranns | 521a8d7 | 2018-12-06 13:46:49 +0000 | [diff] [blame] | 917 | def test_gre_loop(self): |
| 918 | """ GRE tunnel loop Tests """ |
| 919 | |
| 920 | # |
| 921 | # Create an L3 GRE tunnel. |
| 922 | # - set it admin up |
| 923 | # - assign an IP Addres |
| 924 | # |
| 925 | gre_if = VppGreInterface(self, |
| 926 | self.pg0.local_ip4, |
| 927 | "1.1.1.2") |
| 928 | gre_if.add_vpp_config() |
| 929 | gre_if.admin_up() |
| 930 | gre_if.config_ip4() |
| 931 | |
| 932 | # |
| 933 | # add a route to the tunnel's destination that points |
| 934 | # through the tunnel, hence forming a loop in the forwarding |
| 935 | # graph |
| 936 | # |
| 937 | route_dst = VppIpRoute(self, "1.1.1.2", 32, |
| 938 | [VppRoutePath("0.0.0.0", |
| 939 | gre_if.sw_if_index)]) |
| 940 | route_dst.add_vpp_config() |
| 941 | |
| 942 | # |
| 943 | # packets to the tunnels destination should be dropped |
| 944 | # |
| 945 | tx = self.create_stream_ip4(self.pg0, "1.1.1.1", "1.1.1.2") |
| 946 | self.send_and_assert_no_replies(self.pg2, tx) |
| 947 | |
| 948 | self.logger.info(self.vapi.ppcli("sh adj 7")) |
| 949 | |
| 950 | # |
| 951 | # break the loop |
| 952 | # |
| 953 | route_dst.modify([VppRoutePath(self.pg1.remote_ip4, |
| 954 | self.pg1.sw_if_index)]) |
| 955 | route_dst.add_vpp_config() |
| 956 | |
| 957 | rx = self.send_and_expect(self.pg0, tx, self.pg1) |
| 958 | |
| 959 | # |
| 960 | # a good route throught the tunnel to check it restacked |
| 961 | # |
| 962 | route_via_tun_2 = VppIpRoute(self, "2.2.2.2", 32, |
| 963 | [VppRoutePath("0.0.0.0", |
| 964 | gre_if.sw_if_index)]) |
| 965 | route_via_tun_2.add_vpp_config() |
| 966 | |
| 967 | tx = self.create_stream_ip4(self.pg0, "2.2.2.3", "2.2.2.2") |
| 968 | rx = self.send_and_expect(self.pg0, tx, self.pg1) |
| 969 | self.verify_tunneled_4o4(self.pg1, rx, tx, |
| 970 | self.pg0.local_ip4, "1.1.1.2") |
| 971 | |
| 972 | # |
| 973 | # cleanup |
| 974 | # |
| 975 | route_via_tun_2.remove_vpp_config() |
| 976 | gre_if.remove_vpp_config() |
| 977 | |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 978 | |
| 979 | if __name__ == '__main__': |
| 980 | unittest.main(testRunner=VppTestRunner) |