Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 1 | #!/usr/bin/env python |
| 2 | |
| 3 | import unittest |
| 4 | |
| 5 | from framework import VppTestCase, VppTestRunner |
| 6 | from vpp_sub_interface import VppSubInterface, VppDot1QSubint, VppDot1ADSubint |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 7 | from vpp_ip_route import VppIpMRoute, VppMRoutePath, VppMFibSignal |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 8 | |
| 9 | from scapy.packet import Raw |
| 10 | from scapy.layers.l2 import Ether |
| 11 | from scapy.layers.inet import IP, UDP, getmacbyip |
| 12 | from scapy.layers.inet6 import IPv6, getmacbyip6 |
| 13 | from util import ppp |
| 14 | |
| 15 | |
| 16 | class MRouteItfFlags: |
| 17 | MFIB_ITF_FLAG_NONE = 0 |
| 18 | MFIB_ITF_FLAG_NEGATE_SIGNAL = 1 |
| 19 | MFIB_ITF_FLAG_ACCEPT = 2 |
| 20 | MFIB_ITF_FLAG_FORWARD = 4 |
| 21 | MFIB_ITF_FLAG_SIGNAL_PRESENT = 8 |
| 22 | MFIB_ITF_FLAG_INTERNAL_COPY = 16 |
| 23 | |
| 24 | |
| 25 | class MRouteEntryFlags: |
| 26 | MFIB_ENTRY_FLAG_NONE = 0 |
| 27 | MFIB_ENTRY_FLAG_SIGNAL = 1 |
| 28 | MFIB_ENTRY_FLAG_DROP = 2 |
| 29 | MFIB_ENTRY_FLAG_CONNECTED = 4 |
| 30 | MFIB_ENTRY_FLAG_INHERIT_ACCEPT = 8 |
| 31 | |
Neale Ranns | 9bea8fb | 2017-02-03 04:34:01 -0800 | [diff] [blame] | 32 | # |
| 33 | # The number of packets sent is set to 90 so that when we replicate more than 3 |
| 34 | # times, which we do for some entries, we will generate more than 256 packets |
Neale Ranns | aaa396a | 2017-02-05 09:12:02 -0800 | [diff] [blame] | 35 | # to the next node in the VLIB graph. Thus we are testing the code's |
| 36 | # correctness handling this over-flow |
Neale Ranns | 9bea8fb | 2017-02-03 04:34:01 -0800 | [diff] [blame] | 37 | # |
| 38 | N_PKTS_IN_STREAM = 90 |
| 39 | |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 40 | |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 41 | class TestMFIB(VppTestCase): |
| 42 | """ MFIB Test Case """ |
| 43 | |
| 44 | def setUp(self): |
| 45 | super(TestMFIB, self).setUp() |
| 46 | |
| 47 | def test_mfib(self): |
| 48 | """ MFIB Unit Tests """ |
| 49 | error = self.vapi.cli("test mfib") |
| 50 | |
| 51 | if error: |
| 52 | self.logger.critical(error) |
| 53 | self.assertEqual(error.find("Failed"), -1) |
| 54 | |
| 55 | |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 56 | class TestIPMcast(VppTestCase): |
| 57 | """ IP Multicast Test Case """ |
| 58 | |
| 59 | def setUp(self): |
| 60 | super(TestIPMcast, self).setUp() |
| 61 | |
Neale Ranns | 37be736 | 2017-02-21 17:30:26 -0800 | [diff] [blame] | 62 | # create 8 pg interfaces |
| 63 | self.create_pg_interfaces(range(8)) |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 64 | |
| 65 | # setup interfaces |
| 66 | for i in self.pg_interfaces: |
| 67 | i.admin_up() |
| 68 | i.config_ip4() |
| 69 | i.config_ip6() |
| 70 | i.resolve_arp() |
| 71 | i.resolve_ndp() |
| 72 | |
| 73 | def create_stream_ip4(self, src_if, src_ip, dst_ip): |
| 74 | pkts = [] |
Neale Ranns | 9bea8fb | 2017-02-03 04:34:01 -0800 | [diff] [blame] | 75 | for i in range(0, N_PKTS_IN_STREAM): |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 76 | info = self.create_packet_info(src_if, src_if) |
| 77 | payload = self.info_to_payload(info) |
| 78 | p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / |
| 79 | IP(src=src_ip, dst=dst_ip) / |
| 80 | UDP(sport=1234, dport=1234) / |
| 81 | Raw(payload)) |
| 82 | info.data = p.copy() |
| 83 | pkts.append(p) |
| 84 | return pkts |
| 85 | |
| 86 | def create_stream_ip6(self, src_if, src_ip, dst_ip): |
| 87 | pkts = [] |
Neale Ranns | 9bea8fb | 2017-02-03 04:34:01 -0800 | [diff] [blame] | 88 | for i in range(0, N_PKTS_IN_STREAM): |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 89 | info = self.create_packet_info(src_if, src_if) |
| 90 | payload = self.info_to_payload(info) |
| 91 | p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / |
| 92 | IPv6(src=src_ip, dst=dst_ip) / |
| 93 | UDP(sport=1234, dport=1234) / |
| 94 | Raw(payload)) |
| 95 | info.data = p.copy() |
| 96 | pkts.append(p) |
| 97 | return pkts |
| 98 | |
| 99 | def verify_filter(self, capture, sent): |
| 100 | if not len(capture) == len(sent): |
| 101 | # filter out any IPv6 RAs from the captur |
| 102 | for p in capture: |
| 103 | if (p.haslayer(IPv6)): |
| 104 | capture.remove(p) |
| 105 | return capture |
| 106 | |
| 107 | def verify_capture_ip4(self, src_if, sent): |
Neale Ranns | 9bea8fb | 2017-02-03 04:34:01 -0800 | [diff] [blame] | 108 | rxd = self.pg1.get_capture(N_PKTS_IN_STREAM) |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 109 | |
| 110 | try: |
| 111 | capture = self.verify_filter(rxd, sent) |
| 112 | |
| 113 | self.assertEqual(len(capture), len(sent)) |
| 114 | |
| 115 | for i in range(len(capture)): |
| 116 | tx = sent[i] |
| 117 | rx = capture[i] |
| 118 | |
| 119 | # the rx'd packet has the MPLS label popped |
| 120 | eth = rx[Ether] |
| 121 | self.assertEqual(eth.type, 0x800) |
| 122 | |
| 123 | tx_ip = tx[IP] |
| 124 | rx_ip = rx[IP] |
| 125 | |
| 126 | # check the MAC address on the RX'd packet is correctly formed |
| 127 | self.assertEqual(eth.dst, getmacbyip(rx_ip.dst)) |
| 128 | |
| 129 | self.assertEqual(rx_ip.src, tx_ip.src) |
| 130 | self.assertEqual(rx_ip.dst, tx_ip.dst) |
| 131 | # IP processing post pop has decremented the TTL |
| 132 | self.assertEqual(rx_ip.ttl + 1, tx_ip.ttl) |
| 133 | |
| 134 | except: |
| 135 | raise |
| 136 | |
| 137 | def verify_capture_ip6(self, src_if, sent): |
Neale Ranns | 9bea8fb | 2017-02-03 04:34:01 -0800 | [diff] [blame] | 138 | capture = self.pg1.get_capture(N_PKTS_IN_STREAM) |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 139 | |
| 140 | self.assertEqual(len(capture), len(sent)) |
| 141 | |
| 142 | for i in range(len(capture)): |
| 143 | tx = sent[i] |
| 144 | rx = capture[i] |
| 145 | |
| 146 | # the rx'd packet has the MPLS label popped |
| 147 | eth = rx[Ether] |
| 148 | self.assertEqual(eth.type, 0x86DD) |
| 149 | |
| 150 | tx_ip = tx[IPv6] |
| 151 | rx_ip = rx[IPv6] |
| 152 | |
| 153 | # check the MAC address on the RX'd packet is correctly formed |
| 154 | self.assertEqual(eth.dst, getmacbyip6(rx_ip.dst)) |
| 155 | |
| 156 | self.assertEqual(rx_ip.src, tx_ip.src) |
| 157 | self.assertEqual(rx_ip.dst, tx_ip.dst) |
| 158 | # IP processing post pop has decremented the TTL |
| 159 | self.assertEqual(rx_ip.hlim + 1, tx_ip.hlim) |
| 160 | |
| 161 | def test_ip_mcast(self): |
| 162 | """ IP Multicast Replication """ |
| 163 | |
| 164 | # |
| 165 | # a stream that matches the default route. gets dropped. |
| 166 | # |
| 167 | self.vapi.cli("clear trace") |
| 168 | tx = self.create_stream_ip4(self.pg0, "1.1.1.1", "232.1.1.1") |
| 169 | self.pg0.add_stream(tx) |
| 170 | |
| 171 | self.pg_enable_capture(self.pg_interfaces) |
| 172 | self.pg_start() |
| 173 | |
| 174 | self.pg0.assert_nothing_captured( |
| 175 | remark="IP multicast packets forwarded on default route") |
| 176 | |
| 177 | # |
| 178 | # A (*,G). |
Neale Ranns | 37be736 | 2017-02-21 17:30:26 -0800 | [diff] [blame] | 179 | # one accepting interface, pg0, 7 forwarding interfaces |
| 180 | # many forwarding interfaces test the case where the replicare DPO |
| 181 | # needs to use extra cache lines for the buckets. |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 182 | # |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 183 | route_232_1_1_1 = VppIpMRoute( |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 184 | self, |
| 185 | "0.0.0.0", |
| 186 | "232.1.1.1", 32, |
| 187 | MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE, |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 188 | [VppMRoutePath(self.pg0.sw_if_index, |
| 189 | MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT), |
| 190 | VppMRoutePath(self.pg1.sw_if_index, |
| 191 | MRouteItfFlags.MFIB_ITF_FLAG_FORWARD), |
| 192 | VppMRoutePath(self.pg2.sw_if_index, |
| 193 | MRouteItfFlags.MFIB_ITF_FLAG_FORWARD), |
| 194 | VppMRoutePath(self.pg3.sw_if_index, |
Neale Ranns | 37be736 | 2017-02-21 17:30:26 -0800 | [diff] [blame] | 195 | MRouteItfFlags.MFIB_ITF_FLAG_FORWARD), |
| 196 | VppMRoutePath(self.pg4.sw_if_index, |
| 197 | MRouteItfFlags.MFIB_ITF_FLAG_FORWARD), |
| 198 | VppMRoutePath(self.pg5.sw_if_index, |
| 199 | MRouteItfFlags.MFIB_ITF_FLAG_FORWARD), |
| 200 | VppMRoutePath(self.pg6.sw_if_index, |
| 201 | MRouteItfFlags.MFIB_ITF_FLAG_FORWARD), |
| 202 | VppMRoutePath(self.pg7.sw_if_index, |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 203 | MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)]) |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 204 | route_232_1_1_1.add_vpp_config() |
| 205 | |
| 206 | # |
| 207 | # An (S,G). |
| 208 | # one accepting interface, pg0, 2 forwarding interfaces |
| 209 | # |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 210 | route_1_1_1_1_232_1_1_1 = VppIpMRoute( |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 211 | self, |
| 212 | "1.1.1.1", |
| 213 | "232.1.1.1", 64, |
| 214 | MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE, |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 215 | [VppMRoutePath(self.pg0.sw_if_index, |
| 216 | MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT), |
| 217 | VppMRoutePath(self.pg1.sw_if_index, |
| 218 | MRouteItfFlags.MFIB_ITF_FLAG_FORWARD), |
| 219 | VppMRoutePath(self.pg2.sw_if_index, |
| 220 | MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)]) |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 221 | route_1_1_1_1_232_1_1_1.add_vpp_config() |
| 222 | |
| 223 | # |
| 224 | # An (*,G/m). |
| 225 | # one accepting interface, pg0, 1 forwarding interfaces |
| 226 | # |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 227 | route_232 = VppIpMRoute( |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 228 | self, |
| 229 | "0.0.0.0", |
| 230 | "232.0.0.0", 8, |
| 231 | MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE, |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 232 | [VppMRoutePath(self.pg0.sw_if_index, |
| 233 | MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT), |
| 234 | VppMRoutePath(self.pg1.sw_if_index, |
| 235 | MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)]) |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 236 | route_232.add_vpp_config() |
| 237 | |
| 238 | # |
| 239 | # a stream that matches the route for (1.1.1.1,232.1.1.1) |
| 240 | # |
| 241 | self.vapi.cli("clear trace") |
| 242 | tx = self.create_stream_ip4(self.pg0, "1.1.1.1", "232.1.1.1") |
| 243 | self.pg0.add_stream(tx) |
| 244 | |
| 245 | self.pg_enable_capture(self.pg_interfaces) |
| 246 | self.pg_start() |
| 247 | |
Neale Ranns | 37be736 | 2017-02-21 17:30:26 -0800 | [diff] [blame] | 248 | # We expect replications on Pg1->7 |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 249 | self.verify_capture_ip4(self.pg1, tx) |
| 250 | self.verify_capture_ip4(self.pg2, tx) |
Neale Ranns | 37be736 | 2017-02-21 17:30:26 -0800 | [diff] [blame] | 251 | self.verify_capture_ip4(self.pg3, tx) |
| 252 | self.verify_capture_ip4(self.pg4, tx) |
| 253 | self.verify_capture_ip4(self.pg5, tx) |
| 254 | self.verify_capture_ip4(self.pg6, tx) |
| 255 | self.verify_capture_ip4(self.pg7, tx) |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 256 | |
| 257 | # no replications on Pg0 |
| 258 | self.pg0.assert_nothing_captured( |
| 259 | remark="IP multicast packets forwarded on PG0") |
| 260 | self.pg3.assert_nothing_captured( |
| 261 | remark="IP multicast packets forwarded on PG3") |
| 262 | |
| 263 | # |
| 264 | # a stream that matches the route for (*,232.0.0.0/8) |
| 265 | # Send packets with the 9th bit set so we test the correct clearing |
| 266 | # of that bit in the mac rewrite |
| 267 | # |
| 268 | self.vapi.cli("clear trace") |
| 269 | tx = self.create_stream_ip4(self.pg0, "1.1.1.1", "232.255.255.255") |
| 270 | self.pg0.add_stream(tx) |
| 271 | |
| 272 | self.pg_enable_capture(self.pg_interfaces) |
| 273 | self.pg_start() |
| 274 | |
| 275 | # We expect replications on Pg1 only |
| 276 | self.verify_capture_ip4(self.pg1, tx) |
| 277 | |
| 278 | # no replications on Pg0, Pg2 not Pg3 |
| 279 | self.pg0.assert_nothing_captured( |
| 280 | remark="IP multicast packets forwarded on PG0") |
| 281 | self.pg2.assert_nothing_captured( |
| 282 | remark="IP multicast packets forwarded on PG2") |
| 283 | self.pg3.assert_nothing_captured( |
| 284 | remark="IP multicast packets forwarded on PG3") |
| 285 | |
| 286 | # |
| 287 | # a stream that matches the route for (*,232.1.1.1) |
| 288 | # |
| 289 | self.vapi.cli("clear trace") |
| 290 | tx = self.create_stream_ip4(self.pg0, "1.1.1.2", "232.1.1.1") |
| 291 | self.pg0.add_stream(tx) |
| 292 | |
| 293 | self.pg_enable_capture(self.pg_interfaces) |
| 294 | self.pg_start() |
| 295 | |
| 296 | # We expect replications on Pg1, 2, 3. |
| 297 | self.verify_capture_ip4(self.pg1, tx) |
| 298 | self.verify_capture_ip4(self.pg2, tx) |
| 299 | self.verify_capture_ip4(self.pg3, tx) |
| 300 | |
| 301 | # no replications on Pg0 |
| 302 | self.pg0.assert_nothing_captured( |
| 303 | remark="IP multicast packets forwarded on PG0") |
| 304 | |
| 305 | route_232_1_1_1.remove_vpp_config() |
| 306 | route_1_1_1_1_232_1_1_1.remove_vpp_config() |
| 307 | route_232.remove_vpp_config() |
| 308 | |
| 309 | def test_ip6_mcast(self): |
| 310 | """ IPv6 Multicast Replication """ |
| 311 | |
| 312 | # |
| 313 | # a stream that matches the default route. gets dropped. |
| 314 | # |
| 315 | self.vapi.cli("clear trace") |
| 316 | tx = self.create_stream_ip6(self.pg0, "2001::1", "ff01::1") |
| 317 | self.pg0.add_stream(tx) |
| 318 | |
| 319 | self.pg_enable_capture(self.pg_interfaces) |
| 320 | self.pg_start() |
| 321 | |
| 322 | self.pg0.assert_nothing_captured( |
| 323 | remark="IPv6 multicast packets forwarded on default route") |
| 324 | |
| 325 | # |
| 326 | # A (*,G). |
| 327 | # one accepting interface, pg0, 3 forwarding interfaces |
| 328 | # |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 329 | route_ff01_1 = VppIpMRoute( |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 330 | self, |
| 331 | "::", |
| 332 | "ff01::1", 128, |
| 333 | MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE, |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 334 | [VppMRoutePath(self.pg0.sw_if_index, |
| 335 | MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT), |
| 336 | VppMRoutePath(self.pg1.sw_if_index, |
| 337 | MRouteItfFlags.MFIB_ITF_FLAG_FORWARD), |
| 338 | VppMRoutePath(self.pg2.sw_if_index, |
| 339 | MRouteItfFlags.MFIB_ITF_FLAG_FORWARD), |
| 340 | VppMRoutePath(self.pg3.sw_if_index, |
| 341 | MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)], |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 342 | is_ip6=1) |
| 343 | route_ff01_1.add_vpp_config() |
| 344 | |
| 345 | # |
| 346 | # An (S,G). |
| 347 | # one accepting interface, pg0, 2 forwarding interfaces |
| 348 | # |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 349 | route_2001_ff01_1 = VppIpMRoute( |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 350 | self, |
| 351 | "2001::1", |
| 352 | "ff01::1", 256, |
| 353 | MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE, |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 354 | [VppMRoutePath(self.pg0.sw_if_index, |
| 355 | MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT), |
| 356 | VppMRoutePath(self.pg1.sw_if_index, |
| 357 | MRouteItfFlags.MFIB_ITF_FLAG_FORWARD), |
| 358 | VppMRoutePath(self.pg2.sw_if_index, |
| 359 | MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)], |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 360 | is_ip6=1) |
| 361 | route_2001_ff01_1.add_vpp_config() |
| 362 | |
| 363 | # |
| 364 | # An (*,G/m). |
| 365 | # one accepting interface, pg0, 1 forwarding interface |
| 366 | # |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 367 | route_ff01 = VppIpMRoute( |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 368 | self, |
| 369 | "::", |
| 370 | "ff01::", 16, |
| 371 | MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE, |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 372 | [VppMRoutePath(self.pg0.sw_if_index, |
| 373 | MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT), |
| 374 | VppMRoutePath(self.pg1.sw_if_index, |
| 375 | MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)], |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 376 | is_ip6=1) |
| 377 | route_ff01.add_vpp_config() |
| 378 | |
| 379 | # |
| 380 | # a stream that matches the route for (*, ff01::/16) |
| 381 | # |
| 382 | self.vapi.cli("clear trace") |
| 383 | tx = self.create_stream_ip6(self.pg0, "2002::1", "ff01:2::255") |
| 384 | self.pg0.add_stream(tx) |
| 385 | |
| 386 | self.pg_enable_capture(self.pg_interfaces) |
| 387 | self.pg_start() |
| 388 | |
| 389 | # We expect replications on Pg1 |
| 390 | self.verify_capture_ip6(self.pg1, tx) |
| 391 | |
| 392 | # no replications on Pg0, Pg3 |
| 393 | self.pg0.assert_nothing_captured( |
| 394 | remark="IP multicast packets forwarded on PG0") |
| 395 | self.pg2.assert_nothing_captured( |
| 396 | remark="IP multicast packets forwarded on PG2") |
| 397 | self.pg3.assert_nothing_captured( |
| 398 | remark="IP multicast packets forwarded on PG3") |
| 399 | |
| 400 | # |
| 401 | # a stream that matches the route for (*,ff01::1) |
| 402 | # |
| 403 | self.vapi.cli("clear trace") |
| 404 | tx = self.create_stream_ip6(self.pg0, "2002::2", "ff01::1") |
| 405 | self.pg0.add_stream(tx) |
| 406 | |
| 407 | self.pg_enable_capture(self.pg_interfaces) |
| 408 | self.pg_start() |
| 409 | |
| 410 | # We expect replications on Pg1, 2, 3. |
| 411 | self.verify_capture_ip6(self.pg1, tx) |
| 412 | self.verify_capture_ip6(self.pg2, tx) |
| 413 | self.verify_capture_ip6(self.pg3, tx) |
| 414 | |
| 415 | # no replications on Pg0 |
| 416 | self.pg0.assert_nothing_captured( |
| 417 | remark="IPv6 multicast packets forwarded on PG0") |
| 418 | |
| 419 | # |
| 420 | # a stream that matches the route for (2001::1, ff00::1) |
| 421 | # |
| 422 | self.vapi.cli("clear trace") |
| 423 | tx = self.create_stream_ip6(self.pg0, "2001::1", "ff01::1") |
| 424 | self.pg0.add_stream(tx) |
| 425 | |
| 426 | self.pg_enable_capture(self.pg_interfaces) |
| 427 | self.pg_start() |
| 428 | |
| 429 | # We expect replications on Pg1, 2, |
| 430 | self.verify_capture_ip6(self.pg1, tx) |
| 431 | self.verify_capture_ip6(self.pg2, tx) |
| 432 | |
| 433 | # no replications on Pg0, Pg3 |
| 434 | self.pg0.assert_nothing_captured( |
| 435 | remark="IP multicast packets forwarded on PG0") |
| 436 | self.pg3.assert_nothing_captured( |
| 437 | remark="IP multicast packets forwarded on PG3") |
| 438 | |
| 439 | route_ff01.remove_vpp_config() |
| 440 | route_ff01_1.remove_vpp_config() |
| 441 | route_2001_ff01_1.remove_vpp_config() |
| 442 | |
| 443 | def _mcast_connected_send_stream(self, dst_ip): |
| 444 | self.vapi.cli("clear trace") |
| 445 | tx = self.create_stream_ip4(self.pg0, |
| 446 | self.pg0.remote_ip4, |
| 447 | dst_ip) |
| 448 | self.pg0.add_stream(tx) |
| 449 | |
| 450 | self.pg_enable_capture(self.pg_interfaces) |
| 451 | self.pg_start() |
| 452 | |
| 453 | # We expect replications on Pg1. |
| 454 | self.verify_capture_ip4(self.pg1, tx) |
| 455 | |
| 456 | return tx |
| 457 | |
| 458 | def test_ip_mcast_connected(self): |
| 459 | """ IP Multicast Connected Source check """ |
| 460 | |
| 461 | # |
| 462 | # A (*,G). |
| 463 | # one accepting interface, pg0, 1 forwarding interfaces |
| 464 | # |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 465 | route_232_1_1_1 = VppIpMRoute( |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 466 | self, |
| 467 | "0.0.0.0", |
| 468 | "232.1.1.1", 32, |
| 469 | MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE, |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 470 | [VppMRoutePath(self.pg0.sw_if_index, |
| 471 | MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT), |
| 472 | VppMRoutePath(self.pg1.sw_if_index, |
| 473 | MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)]) |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 474 | |
| 475 | route_232_1_1_1.add_vpp_config() |
| 476 | route_232_1_1_1.update_entry_flags( |
| 477 | MRouteEntryFlags.MFIB_ENTRY_FLAG_CONNECTED) |
| 478 | |
| 479 | # |
| 480 | # Now the (*,G) is present, send from connected source |
| 481 | # |
| 482 | tx = self._mcast_connected_send_stream("232.1.1.1") |
| 483 | |
| 484 | # |
| 485 | # Constrct a representation of the signal we expect on pg0 |
| 486 | # |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 487 | signal_232_1_1_1_itf_0 = VppMFibSignal(self, |
| 488 | route_232_1_1_1, |
| 489 | self.pg0.sw_if_index, |
| 490 | tx[0]) |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 491 | |
| 492 | # |
| 493 | # read the only expected signal |
| 494 | # |
| 495 | signals = self.vapi.mfib_signal_dump() |
| 496 | |
| 497 | self.assertEqual(1, len(signals)) |
| 498 | |
| 499 | signal_232_1_1_1_itf_0.compare(signals[0]) |
| 500 | |
| 501 | # |
| 502 | # reading the signal allows for the generation of another |
| 503 | # so send more packets and expect the next signal |
| 504 | # |
| 505 | tx = self._mcast_connected_send_stream("232.1.1.1") |
| 506 | |
| 507 | signals = self.vapi.mfib_signal_dump() |
| 508 | self.assertEqual(1, len(signals)) |
| 509 | signal_232_1_1_1_itf_0.compare(signals[0]) |
| 510 | |
| 511 | # |
| 512 | # A Second entry with connected check |
| 513 | # one accepting interface, pg0, 1 forwarding interfaces |
| 514 | # |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 515 | route_232_1_1_2 = VppIpMRoute( |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 516 | self, |
| 517 | "0.0.0.0", |
| 518 | "232.1.1.2", 32, |
| 519 | MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE, |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 520 | [VppMRoutePath(self.pg0.sw_if_index, |
| 521 | MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT), |
| 522 | VppMRoutePath(self.pg1.sw_if_index, |
| 523 | MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)]) |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 524 | |
| 525 | route_232_1_1_2.add_vpp_config() |
| 526 | route_232_1_1_2.update_entry_flags( |
| 527 | MRouteEntryFlags.MFIB_ENTRY_FLAG_CONNECTED) |
| 528 | |
| 529 | # |
| 530 | # Send traffic to both entries. One read should net us two signals |
| 531 | # |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 532 | signal_232_1_1_2_itf_0 = VppMFibSignal(self, |
| 533 | route_232_1_1_2, |
| 534 | self.pg0.sw_if_index, |
| 535 | tx[0]) |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 536 | tx = self._mcast_connected_send_stream("232.1.1.1") |
| 537 | tx2 = self._mcast_connected_send_stream("232.1.1.2") |
| 538 | |
| 539 | # |
| 540 | # read the only expected signal |
| 541 | # |
| 542 | signals = self.vapi.mfib_signal_dump() |
| 543 | |
| 544 | self.assertEqual(2, len(signals)) |
| 545 | |
| 546 | signal_232_1_1_1_itf_0.compare(signals[1]) |
| 547 | signal_232_1_1_2_itf_0.compare(signals[0]) |
| 548 | |
| 549 | route_232_1_1_1.remove_vpp_config() |
| 550 | route_232_1_1_2.remove_vpp_config() |
| 551 | |
| 552 | def test_ip_mcast_signal(self): |
| 553 | """ IP Multicast Signal """ |
| 554 | |
| 555 | # |
| 556 | # A (*,G). |
| 557 | # one accepting interface, pg0, 1 forwarding interfaces |
| 558 | # |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 559 | route_232_1_1_1 = VppIpMRoute( |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 560 | self, |
| 561 | "0.0.0.0", |
| 562 | "232.1.1.1", 32, |
| 563 | MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE, |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 564 | [VppMRoutePath(self.pg0.sw_if_index, |
| 565 | MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT), |
| 566 | VppMRoutePath(self.pg1.sw_if_index, |
| 567 | MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)]) |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 568 | |
| 569 | route_232_1_1_1.add_vpp_config() |
| 570 | route_232_1_1_1.update_entry_flags( |
| 571 | MRouteEntryFlags.MFIB_ENTRY_FLAG_SIGNAL) |
| 572 | |
| 573 | # |
| 574 | # Now the (*,G) is present, send from connected source |
| 575 | # |
| 576 | tx = self._mcast_connected_send_stream("232.1.1.1") |
| 577 | |
| 578 | # |
| 579 | # Constrct a representation of the signal we expect on pg0 |
| 580 | # |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 581 | signal_232_1_1_1_itf_0 = VppMFibSignal(self, |
| 582 | route_232_1_1_1, |
| 583 | self.pg0.sw_if_index, |
| 584 | tx[0]) |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 585 | |
| 586 | # |
| 587 | # read the only expected signal |
| 588 | # |
| 589 | signals = self.vapi.mfib_signal_dump() |
| 590 | |
| 591 | self.assertEqual(1, len(signals)) |
| 592 | |
| 593 | signal_232_1_1_1_itf_0.compare(signals[0]) |
| 594 | |
| 595 | # |
| 596 | # reading the signal allows for the generation of another |
| 597 | # so send more packets and expect the next signal |
| 598 | # |
| 599 | tx = self._mcast_connected_send_stream("232.1.1.1") |
| 600 | |
| 601 | signals = self.vapi.mfib_signal_dump() |
| 602 | self.assertEqual(1, len(signals)) |
| 603 | signal_232_1_1_1_itf_0.compare(signals[0]) |
| 604 | |
| 605 | # |
| 606 | # Set the negate-signal on the accepting interval - the signals |
| 607 | # should stop |
| 608 | # |
| 609 | route_232_1_1_1.update_path_flags( |
| 610 | self.pg0.sw_if_index, |
| 611 | (MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT | |
| 612 | MRouteItfFlags.MFIB_ITF_FLAG_NEGATE_SIGNAL)) |
| 613 | |
| 614 | tx = self._mcast_connected_send_stream("232.1.1.1") |
| 615 | |
| 616 | signals = self.vapi.mfib_signal_dump() |
| 617 | self.assertEqual(0, len(signals)) |
| 618 | |
| 619 | # |
| 620 | # Clear the SIGNAL flag on the entry and the signals should |
| 621 | # come back since the interface is still NEGATE-SIGNAL |
| 622 | # |
| 623 | route_232_1_1_1.update_entry_flags( |
| 624 | MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE) |
| 625 | |
| 626 | tx = self._mcast_connected_send_stream("232.1.1.1") |
| 627 | |
| 628 | signals = self.vapi.mfib_signal_dump() |
| 629 | self.assertEqual(1, len(signals)) |
| 630 | signal_232_1_1_1_itf_0.compare(signals[0]) |
| 631 | |
| 632 | # |
| 633 | # Lastly remove the NEGATE-SIGNAL from the interface and the |
| 634 | # signals should stop |
| 635 | # |
| 636 | route_232_1_1_1.update_path_flags(self.pg0.sw_if_index, |
| 637 | MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT) |
| 638 | |
| 639 | tx = self._mcast_connected_send_stream("232.1.1.1") |
| 640 | signals = self.vapi.mfib_signal_dump() |
| 641 | self.assertEqual(0, len(signals)) |
| 642 | |
| 643 | # |
| 644 | # Cleanup |
| 645 | # |
| 646 | route_232_1_1_1.remove_vpp_config() |
| 647 | |
| 648 | |
| 649 | if __name__ == '__main__': |
| 650 | unittest.main(testRunner=VppTestRunner) |