Renato Botelho do Couto | ead1e53 | 2019-10-31 13:31:07 -0500 | [diff] [blame] | 1 | #!/usr/bin/env python3 |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 2 | |
| 3 | import unittest |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 4 | import os |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 5 | from socket import AF_INET, AF_INET6, inet_pton |
| 6 | |
Andrew Yourtchenko | 8dc0d48 | 2021-01-29 13:17:19 +0000 | [diff] [blame] | 7 | from framework import tag_fixme_vpp_workers |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 8 | from framework import VppTestCase, VppTestRunner |
| 9 | from vpp_neighbor import VppNeighbor, find_nbr |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 10 | from vpp_ip_route import ( |
| 11 | VppIpRoute, |
| 12 | VppRoutePath, |
| 13 | find_route, |
| 14 | VppIpTable, |
| 15 | DpoProto, |
| 16 | FibPathType, |
| 17 | VppIpInterfaceAddress, |
| 18 | ) |
Neale Ranns | 3702930 | 2018-08-10 05:30:06 -0700 | [diff] [blame] | 19 | from vpp_papi import VppEnum |
Jakub Grajciar | 2df2f75 | 2020-12-01 11:23:44 +0100 | [diff] [blame] | 20 | from vpp_ip import VppIpPuntRedirect |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 21 | |
Paul Vinciguerra | a7427ec | 2019-03-10 10:04:23 -0700 | [diff] [blame] | 22 | import scapy.compat |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 23 | from scapy.packet import Raw |
Neale Ranns | 30d0fd4 | 2017-05-30 07:30:04 -0700 | [diff] [blame] | 24 | from scapy.layers.l2 import Ether, ARP, Dot1Q |
Neale Ranns | 240dcb2 | 2020-04-23 09:04:59 +0000 | [diff] [blame] | 25 | from scapy.layers.inet import IP, UDP, TCP |
Neale Ranns | cd35e53 | 2018-08-31 02:51:45 -0700 | [diff] [blame] | 26 | from scapy.layers.inet6 import IPv6 |
Neale Ranns | 37be736 | 2017-02-21 17:30:26 -0800 | [diff] [blame] | 27 | from scapy.contrib.mpls import MPLS |
Neale Ranns | 1426039 | 2018-09-28 05:00:57 -0700 | [diff] [blame] | 28 | from scapy.layers.inet6 import IPv6 |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 29 | |
Paul Vinciguerra | 4271c97 | 2019-05-14 13:25:49 -0400 | [diff] [blame] | 30 | |
| 31 | NUM_PKTS = 67 |
| 32 | |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 33 | # not exported by scapy, so redefined here |
| 34 | arp_opts = {"who-has": 1, "is-at": 2} |
| 35 | |
| 36 | |
| 37 | class ARPTestCase(VppTestCase): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 38 | """ARP Test Case""" |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 39 | |
Paul Vinciguerra | 7f9b7f9 | 2019-03-12 19:23:27 -0700 | [diff] [blame] | 40 | @classmethod |
| 41 | def setUpClass(cls): |
| 42 | super(ARPTestCase, cls).setUpClass() |
| 43 | |
| 44 | @classmethod |
| 45 | def tearDownClass(cls): |
| 46 | super(ARPTestCase, cls).tearDownClass() |
| 47 | |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 48 | def setUp(self): |
| 49 | super(ARPTestCase, self).setUp() |
| 50 | |
| 51 | # create 3 pg interfaces |
| 52 | self.create_pg_interfaces(range(4)) |
| 53 | |
| 54 | # pg0 configured with ip4 and 6 addresses used for input |
| 55 | # pg1 configured with ip4 and 6 addresses used for output |
| 56 | # pg2 is unnumbered to pg0 |
| 57 | for i in self.pg_interfaces: |
| 58 | i.admin_up() |
| 59 | |
| 60 | self.pg0.config_ip4() |
| 61 | self.pg0.config_ip6() |
| 62 | self.pg0.resolve_arp() |
| 63 | |
| 64 | self.pg1.config_ip4() |
| 65 | self.pg1.config_ip6() |
| 66 | |
| 67 | # pg3 in a different VRF |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 68 | self.tbl = VppIpTable(self, 1) |
| 69 | self.tbl.add_vpp_config() |
| 70 | |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 71 | self.pg3.set_table_ip4(1) |
| 72 | self.pg3.config_ip4() |
| 73 | |
Neale Ranns | 4008ac9 | 2017-02-13 23:20:04 -0800 | [diff] [blame] | 74 | def tearDown(self): |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 75 | self.pg0.unconfig_ip4() |
| 76 | self.pg0.unconfig_ip6() |
| 77 | |
| 78 | self.pg1.unconfig_ip4() |
| 79 | self.pg1.unconfig_ip6() |
| 80 | |
| 81 | self.pg3.unconfig_ip4() |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 82 | self.pg3.set_table_ip4(0) |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 83 | |
Neale Ranns | 4008ac9 | 2017-02-13 23:20:04 -0800 | [diff] [blame] | 84 | for i in self.pg_interfaces: |
Neale Ranns | 4008ac9 | 2017-02-13 23:20:04 -0800 | [diff] [blame] | 85 | i.admin_down() |
| 86 | |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 87 | super(ARPTestCase, self).tearDown() |
| 88 | |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 89 | def verify_arp_req(self, rx, smac, sip, dip): |
| 90 | ether = rx[Ether] |
| 91 | self.assertEqual(ether.dst, "ff:ff:ff:ff:ff:ff") |
| 92 | self.assertEqual(ether.src, smac) |
Elias Rudberg | 7184571 | 2020-12-10 14:20:43 +0100 | [diff] [blame] | 93 | self.assertEqual(ether.type, 0x0806) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 94 | |
| 95 | arp = rx[ARP] |
| 96 | self.assertEqual(arp.hwtype, 1) |
| 97 | self.assertEqual(arp.ptype, 0x800) |
| 98 | self.assertEqual(arp.hwlen, 6) |
| 99 | self.assertEqual(arp.plen, 4) |
| 100 | self.assertEqual(arp.op, arp_opts["who-has"]) |
| 101 | self.assertEqual(arp.hwsrc, smac) |
| 102 | self.assertEqual(arp.hwdst, "00:00:00:00:00:00") |
| 103 | self.assertEqual(arp.psrc, sip) |
| 104 | self.assertEqual(arp.pdst, dip) |
| 105 | |
| 106 | def verify_arp_resp(self, rx, smac, dmac, sip, dip): |
| 107 | ether = rx[Ether] |
| 108 | self.assertEqual(ether.dst, dmac) |
| 109 | self.assertEqual(ether.src, smac) |
Elias Rudberg | 7184571 | 2020-12-10 14:20:43 +0100 | [diff] [blame] | 110 | self.assertEqual(ether.type, 0x0806) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 111 | |
| 112 | arp = rx[ARP] |
| 113 | self.assertEqual(arp.hwtype, 1) |
| 114 | self.assertEqual(arp.ptype, 0x800) |
| 115 | self.assertEqual(arp.hwlen, 6) |
| 116 | self.assertEqual(arp.plen, 4) |
| 117 | self.assertEqual(arp.op, arp_opts["is-at"]) |
| 118 | self.assertEqual(arp.hwsrc, smac) |
| 119 | self.assertEqual(arp.hwdst, dmac) |
| 120 | self.assertEqual(arp.psrc, sip) |
| 121 | self.assertEqual(arp.pdst, dip) |
| 122 | |
Matthew Smith | cb9ab47 | 2017-05-16 21:35:56 -0500 | [diff] [blame] | 123 | def verify_arp_vrrp_resp(self, rx, smac, dmac, sip, dip): |
| 124 | ether = rx[Ether] |
| 125 | self.assertEqual(ether.dst, dmac) |
| 126 | self.assertEqual(ether.src, smac) |
| 127 | |
| 128 | arp = rx[ARP] |
| 129 | self.assertEqual(arp.hwtype, 1) |
| 130 | self.assertEqual(arp.ptype, 0x800) |
| 131 | self.assertEqual(arp.hwlen, 6) |
| 132 | self.assertEqual(arp.plen, 4) |
| 133 | self.assertEqual(arp.op, arp_opts["is-at"]) |
| 134 | self.assertNotEqual(arp.hwsrc, smac) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 135 | self.assertTrue("00:00:5e:00:01" in arp.hwsrc or "00:00:5E:00:01" in arp.hwsrc) |
Matthew Smith | cb9ab47 | 2017-05-16 21:35:56 -0500 | [diff] [blame] | 136 | self.assertEqual(arp.hwdst, dmac) |
| 137 | self.assertEqual(arp.psrc, sip) |
| 138 | self.assertEqual(arp.pdst, dip) |
| 139 | |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 140 | def verify_ip(self, rx, smac, dmac, sip, dip): |
| 141 | ether = rx[Ether] |
| 142 | self.assertEqual(ether.dst, dmac) |
| 143 | self.assertEqual(ether.src, smac) |
Elias Rudberg | 7184571 | 2020-12-10 14:20:43 +0100 | [diff] [blame] | 144 | self.assertEqual(ether.type, 0x0800) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 145 | |
| 146 | ip = rx[IP] |
| 147 | self.assertEqual(ip.src, sip) |
| 148 | self.assertEqual(ip.dst, dip) |
| 149 | |
Neale Ranns | 37be736 | 2017-02-21 17:30:26 -0800 | [diff] [blame] | 150 | def verify_ip_o_mpls(self, rx, smac, dmac, label, sip, dip): |
| 151 | ether = rx[Ether] |
| 152 | self.assertEqual(ether.dst, dmac) |
| 153 | self.assertEqual(ether.src, smac) |
Elias Rudberg | 7184571 | 2020-12-10 14:20:43 +0100 | [diff] [blame] | 154 | self.assertEqual(ether.type, 0x8847) |
Neale Ranns | 37be736 | 2017-02-21 17:30:26 -0800 | [diff] [blame] | 155 | |
| 156 | mpls = rx[MPLS] |
| 157 | self.assertTrue(mpls.label, label) |
| 158 | |
| 159 | ip = rx[IP] |
| 160 | self.assertEqual(ip.src, sip) |
| 161 | self.assertEqual(ip.dst, dip) |
| 162 | |
Neale Ranns | fd2417b | 2021-07-16 14:00:16 +0000 | [diff] [blame] | 163 | def get_arp_rx_requests(self, itf): |
| 164 | """Get ARP RX request stats for and interface""" |
| 165 | return self.statistics["/net/arp/rx/requests"][:, itf.sw_if_index].sum() |
| 166 | |
| 167 | def get_arp_tx_requests(self, itf): |
| 168 | """Get ARP TX request stats for and interface""" |
| 169 | return self.statistics["/net/arp/tx/requests"][:, itf.sw_if_index].sum() |
| 170 | |
| 171 | def get_arp_rx_replies(self, itf): |
| 172 | """Get ARP RX replies stats for and interface""" |
| 173 | return self.statistics["/net/arp/rx/replies"][:, itf.sw_if_index].sum() |
| 174 | |
| 175 | def get_arp_tx_replies(self, itf): |
| 176 | """Get ARP TX replies stats for and interface""" |
| 177 | return self.statistics["/net/arp/tx/replies"][:, itf.sw_if_index].sum() |
| 178 | |
| 179 | def get_arp_rx_garp(self, itf): |
| 180 | """Get ARP RX grat stats for and interface""" |
| 181 | return self.statistics["/net/arp/rx/gratuitous"][:, itf.sw_if_index].sum() |
| 182 | |
| 183 | def get_arp_tx_garp(self, itf): |
| 184 | """Get ARP RX grat stats for and interface""" |
| 185 | return self.statistics["/net/arp/tx/gratuitous"][:, itf.sw_if_index].sum() |
| 186 | |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 187 | def test_arp(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 188 | """ARP""" |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 189 | |
| 190 | # |
| 191 | # Generate some hosts on the LAN |
| 192 | # |
Neale Ranns | ca19361 | 2017-06-14 06:50:08 -0700 | [diff] [blame] | 193 | self.pg1.generate_remote_hosts(11) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 194 | |
| 195 | # |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 196 | # watch for: |
| 197 | # - all neighbour events |
| 198 | # - all neighbor events on pg1 |
| 199 | # - neighbor events for host[1] on pg1 |
| 200 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 201 | self.vapi.want_ip_neighbor_events(enable=1, pid=os.getpid()) |
| 202 | self.vapi.want_ip_neighbor_events( |
| 203 | enable=1, pid=os.getpid(), sw_if_index=self.pg1.sw_if_index |
| 204 | ) |
| 205 | self.vapi.want_ip_neighbor_events( |
| 206 | enable=1, |
| 207 | pid=os.getpid(), |
| 208 | sw_if_index=self.pg1.sw_if_index, |
| 209 | ip=self.pg1.remote_hosts[1].ip4, |
| 210 | ) |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 211 | |
| 212 | self.logger.info(self.vapi.cli("sh ip neighbor-watcher")) |
| 213 | |
| 214 | # |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 215 | # Send IP traffic to one of these unresolved hosts. |
| 216 | # expect the generation of an ARP request |
| 217 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 218 | p = ( |
| 219 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 220 | / IP(src=self.pg0.remote_ip4, dst=self.pg1._remote_hosts[1].ip4) |
| 221 | / UDP(sport=1234, dport=1234) |
| 222 | / Raw() |
| 223 | ) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 224 | |
| 225 | self.pg0.add_stream(p) |
| 226 | self.pg_enable_capture(self.pg_interfaces) |
| 227 | self.pg_start() |
| 228 | |
| 229 | rx = self.pg1.get_capture(1) |
| 230 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 231 | self.verify_arp_req( |
| 232 | rx[0], self.pg1.local_mac, self.pg1.local_ip4, self.pg1._remote_hosts[1].ip4 |
| 233 | ) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 234 | |
Neale Ranns | fd2417b | 2021-07-16 14:00:16 +0000 | [diff] [blame] | 235 | self.logger.info(self.vapi.cli("sh ip neighbor-stats")) |
| 236 | self.logger.info(self.vapi.cli("sh ip neighbor-stats pg1")) |
| 237 | self.assert_equal(self.get_arp_tx_requests(self.pg1), 1) |
| 238 | |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 239 | # |
| 240 | # And a dynamic ARP entry for host 1 |
| 241 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 242 | dyn_arp = VppNeighbor( |
| 243 | self, |
| 244 | self.pg1.sw_if_index, |
| 245 | self.pg1.remote_hosts[1].mac, |
| 246 | self.pg1.remote_hosts[1].ip4, |
| 247 | ) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 248 | dyn_arp.add_vpp_config() |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 249 | self.assertTrue(dyn_arp.query_vpp_config()) |
| 250 | |
Neale Ranns | dc617b8 | 2020-08-20 08:22:56 +0000 | [diff] [blame] | 251 | self.logger.info(self.vapi.cli("show ip neighbor-watcher")) |
| 252 | |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 253 | # this matches all of the listnerers |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 254 | es = [self.vapi.wait_for_event(1, "ip_neighbor_event") for i in range(3)] |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 255 | for e in es: |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 256 | self.assertEqual(str(e.neighbor.ip_address), self.pg1.remote_hosts[1].ip4) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 257 | |
| 258 | # |
| 259 | # now we expect IP traffic forwarded |
| 260 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 261 | dyn_p = ( |
| 262 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 263 | / IP(src=self.pg0.remote_ip4, dst=self.pg1._remote_hosts[1].ip4) |
| 264 | / UDP(sport=1234, dport=1234) |
| 265 | / Raw() |
| 266 | ) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 267 | |
| 268 | self.pg0.add_stream(dyn_p) |
| 269 | self.pg_enable_capture(self.pg_interfaces) |
| 270 | self.pg_start() |
| 271 | |
| 272 | rx = self.pg1.get_capture(1) |
| 273 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 274 | self.verify_ip( |
| 275 | rx[0], |
| 276 | self.pg1.local_mac, |
| 277 | self.pg1.remote_hosts[1].mac, |
| 278 | self.pg0.remote_ip4, |
| 279 | self.pg1._remote_hosts[1].ip4, |
| 280 | ) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 281 | |
| 282 | # |
| 283 | # And a Static ARP entry for host 2 |
| 284 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 285 | static_arp = VppNeighbor( |
| 286 | self, |
| 287 | self.pg1.sw_if_index, |
| 288 | self.pg1.remote_hosts[2].mac, |
| 289 | self.pg1.remote_hosts[2].ip4, |
| 290 | is_static=1, |
| 291 | ) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 292 | static_arp.add_vpp_config() |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 293 | es = [self.vapi.wait_for_event(1, "ip_neighbor_event") for i in range(2)] |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 294 | for e in es: |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 295 | self.assertEqual(str(e.neighbor.ip_address), self.pg1.remote_hosts[2].ip4) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 296 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 297 | static_p = ( |
| 298 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 299 | / IP(src=self.pg0.remote_ip4, dst=self.pg1._remote_hosts[2].ip4) |
| 300 | / UDP(sport=1234, dport=1234) |
| 301 | / Raw() |
| 302 | ) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 303 | |
| 304 | self.pg0.add_stream(static_p) |
| 305 | self.pg_enable_capture(self.pg_interfaces) |
| 306 | self.pg_start() |
| 307 | |
| 308 | rx = self.pg1.get_capture(1) |
| 309 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 310 | self.verify_ip( |
| 311 | rx[0], |
| 312 | self.pg1.local_mac, |
| 313 | self.pg1.remote_hosts[2].mac, |
| 314 | self.pg0.remote_ip4, |
| 315 | self.pg1._remote_hosts[2].ip4, |
| 316 | ) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 317 | |
| 318 | # |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 319 | # remove all the listeners |
| 320 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 321 | self.vapi.want_ip_neighbor_events(enable=0, pid=os.getpid()) |
| 322 | self.vapi.want_ip_neighbor_events( |
| 323 | enable=0, pid=os.getpid(), sw_if_index=self.pg1.sw_if_index |
| 324 | ) |
| 325 | self.vapi.want_ip_neighbor_events( |
| 326 | enable=0, |
| 327 | pid=os.getpid(), |
| 328 | sw_if_index=self.pg1.sw_if_index, |
| 329 | ip=self.pg1.remote_hosts[1].ip4, |
| 330 | ) |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 331 | |
| 332 | # |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 333 | # flap the link. dynamic ARPs get flush, statics don't |
| 334 | # |
| 335 | self.pg1.admin_down() |
| 336 | self.pg1.admin_up() |
| 337 | |
| 338 | self.pg0.add_stream(static_p) |
| 339 | self.pg_enable_capture(self.pg_interfaces) |
| 340 | self.pg_start() |
| 341 | rx = self.pg1.get_capture(1) |
| 342 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 343 | self.verify_ip( |
| 344 | rx[0], |
| 345 | self.pg1.local_mac, |
| 346 | self.pg1.remote_hosts[2].mac, |
| 347 | self.pg0.remote_ip4, |
| 348 | self.pg1._remote_hosts[2].ip4, |
| 349 | ) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 350 | |
| 351 | self.pg0.add_stream(dyn_p) |
| 352 | self.pg_enable_capture(self.pg_interfaces) |
| 353 | self.pg_start() |
| 354 | |
| 355 | rx = self.pg1.get_capture(1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 356 | self.verify_arp_req( |
| 357 | rx[0], self.pg1.local_mac, self.pg1.local_ip4, self.pg1._remote_hosts[1].ip4 |
| 358 | ) |
Neale Ranns | fd2417b | 2021-07-16 14:00:16 +0000 | [diff] [blame] | 359 | self.assert_equal(self.get_arp_tx_requests(self.pg1), 2) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 360 | |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 361 | self.assertFalse(dyn_arp.query_vpp_config()) |
| 362 | self.assertTrue(static_arp.query_vpp_config()) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 363 | # |
| 364 | # Send an ARP request from one of the so-far unlearned remote hosts |
| 365 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 366 | p = Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg1._remote_hosts[3].mac) / ARP( |
| 367 | op="who-has", |
| 368 | hwsrc=self.pg1._remote_hosts[3].mac, |
| 369 | pdst=self.pg1.local_ip4, |
| 370 | psrc=self.pg1._remote_hosts[3].ip4, |
| 371 | ) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 372 | |
| 373 | self.pg1.add_stream(p) |
| 374 | self.pg_enable_capture(self.pg_interfaces) |
| 375 | self.pg_start() |
| 376 | |
| 377 | rx = self.pg1.get_capture(1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 378 | self.verify_arp_resp( |
| 379 | rx[0], |
| 380 | self.pg1.local_mac, |
| 381 | self.pg1._remote_hosts[3].mac, |
| 382 | self.pg1.local_ip4, |
| 383 | self.pg1._remote_hosts[3].ip4, |
| 384 | ) |
Neale Ranns | fd2417b | 2021-07-16 14:00:16 +0000 | [diff] [blame] | 385 | self.logger.info(self.vapi.cli("sh ip neighbor-stats pg1")) |
| 386 | self.assert_equal(self.get_arp_rx_requests(self.pg1), 1) |
| 387 | self.assert_equal(self.get_arp_tx_replies(self.pg1), 1) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 388 | |
| 389 | # |
| 390 | # VPP should have learned the mapping for the remote host |
| 391 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 392 | self.assertTrue( |
| 393 | find_nbr(self, self.pg1.sw_if_index, self.pg1._remote_hosts[3].ip4) |
| 394 | ) |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 395 | # |
| 396 | # Fire in an ARP request before the interface becomes IP enabled |
| 397 | # |
| 398 | self.pg2.generate_remote_hosts(4) |
| 399 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 400 | p = Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg2.remote_mac) / ARP( |
| 401 | op="who-has", |
| 402 | hwsrc=self.pg2.remote_mac, |
| 403 | pdst=self.pg1.local_ip4, |
| 404 | psrc=self.pg2.remote_hosts[3].ip4, |
| 405 | ) |
| 406 | pt = ( |
| 407 | Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg2.remote_mac) |
| 408 | / Dot1Q(vlan=0) |
| 409 | / ARP( |
| 410 | op="who-has", |
| 411 | hwsrc=self.pg2.remote_mac, |
| 412 | pdst=self.pg1.local_ip4, |
| 413 | psrc=self.pg2.remote_hosts[3].ip4, |
| 414 | ) |
| 415 | ) |
| 416 | self.send_and_assert_no_replies(self.pg2, p, "interface not IP enabled") |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 417 | |
| 418 | # |
| 419 | # Make pg2 un-numbered to pg1 |
| 420 | # |
| 421 | self.pg2.set_unnumbered(self.pg1.sw_if_index) |
| 422 | |
Neale Ranns | ac3e72c | 2019-10-06 01:04:26 -0700 | [diff] [blame] | 423 | # |
| 424 | # test the unnumbered dump both by all interfaces and just the enabled |
| 425 | # one |
| 426 | # |
Neale Ranns | 404d88e | 2018-08-08 06:37:33 -0700 | [diff] [blame] | 427 | unnum = self.vapi.ip_unnumbered_dump() |
Neale Ranns | ac3e72c | 2019-10-06 01:04:26 -0700 | [diff] [blame] | 428 | self.assertTrue(len(unnum)) |
| 429 | self.assertEqual(unnum[0].ip_sw_if_index, self.pg1.sw_if_index) |
| 430 | self.assertEqual(unnum[0].sw_if_index, self.pg2.sw_if_index) |
| 431 | unnum = self.vapi.ip_unnumbered_dump(self.pg2.sw_if_index) |
| 432 | self.assertTrue(len(unnum)) |
Neale Ranns | 404d88e | 2018-08-08 06:37:33 -0700 | [diff] [blame] | 433 | self.assertEqual(unnum[0].ip_sw_if_index, self.pg1.sw_if_index) |
| 434 | self.assertEqual(unnum[0].sw_if_index, self.pg2.sw_if_index) |
| 435 | |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 436 | # |
| 437 | # We should respond to ARP requests for the unnumbered to address |
| 438 | # once an attached route to the source is known |
| 439 | # |
| 440 | self.send_and_assert_no_replies( |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 441 | self.pg2, p, "ARP req for unnumbered address - no source" |
| 442 | ) |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 443 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 444 | attached_host = VppIpRoute( |
| 445 | self, |
| 446 | self.pg2.remote_hosts[3].ip4, |
| 447 | 32, |
| 448 | [VppRoutePath("0.0.0.0", self.pg2.sw_if_index)], |
| 449 | ) |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 450 | attached_host.add_vpp_config() |
| 451 | |
| 452 | self.pg2.add_stream(p) |
| 453 | self.pg_enable_capture(self.pg_interfaces) |
| 454 | self.pg_start() |
| 455 | |
| 456 | rx = self.pg2.get_capture(1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 457 | self.verify_arp_resp( |
| 458 | rx[0], |
| 459 | self.pg2.local_mac, |
| 460 | self.pg2.remote_mac, |
| 461 | self.pg1.local_ip4, |
| 462 | self.pg2.remote_hosts[3].ip4, |
| 463 | ) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 464 | |
Neale Ranns | 30d0fd4 | 2017-05-30 07:30:04 -0700 | [diff] [blame] | 465 | self.pg2.add_stream(pt) |
| 466 | self.pg_enable_capture(self.pg_interfaces) |
| 467 | self.pg_start() |
| 468 | |
| 469 | rx = self.pg2.get_capture(1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 470 | self.verify_arp_resp( |
| 471 | rx[0], |
| 472 | self.pg2.local_mac, |
| 473 | self.pg2.remote_mac, |
| 474 | self.pg1.local_ip4, |
| 475 | self.pg2.remote_hosts[3].ip4, |
| 476 | ) |
Neale Ranns | 30d0fd4 | 2017-05-30 07:30:04 -0700 | [diff] [blame] | 477 | |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 478 | # |
Neale Ranns | 3983ac2 | 2017-03-10 11:53:27 -0800 | [diff] [blame] | 479 | # A neighbor entry that has no associated FIB-entry |
| 480 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 481 | arp_no_fib = VppNeighbor( |
| 482 | self, |
| 483 | self.pg1.sw_if_index, |
| 484 | self.pg1.remote_hosts[4].mac, |
| 485 | self.pg1.remote_hosts[4].ip4, |
| 486 | is_no_fib_entry=1, |
| 487 | ) |
Neale Ranns | 3983ac2 | 2017-03-10 11:53:27 -0800 | [diff] [blame] | 488 | arp_no_fib.add_vpp_config() |
| 489 | |
| 490 | # |
| 491 | # check we have the neighbor, but no route |
| 492 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 493 | self.assertTrue( |
| 494 | find_nbr(self, self.pg1.sw_if_index, self.pg1._remote_hosts[4].ip4) |
| 495 | ) |
| 496 | self.assertFalse(find_route(self, self.pg1._remote_hosts[4].ip4, 32)) |
Neale Ranns | 3983ac2 | 2017-03-10 11:53:27 -0800 | [diff] [blame] | 497 | # |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 498 | # pg2 is unnumbered to pg1, so we can form adjacencies out of pg2 |
| 499 | # from within pg1's subnet |
Neale Ranns | 3983ac2 | 2017-03-10 11:53:27 -0800 | [diff] [blame] | 500 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 501 | arp_unnum = VppNeighbor( |
| 502 | self, |
| 503 | self.pg2.sw_if_index, |
| 504 | self.pg1.remote_hosts[5].mac, |
| 505 | self.pg1.remote_hosts[5].ip4, |
| 506 | ) |
Neale Ranns | 3983ac2 | 2017-03-10 11:53:27 -0800 | [diff] [blame] | 507 | arp_unnum.add_vpp_config() |
| 508 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 509 | p = ( |
| 510 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 511 | / IP(src=self.pg0.remote_ip4, dst=self.pg1._remote_hosts[5].ip4) |
| 512 | / UDP(sport=1234, dport=1234) |
| 513 | / Raw() |
| 514 | ) |
Neale Ranns | 3983ac2 | 2017-03-10 11:53:27 -0800 | [diff] [blame] | 515 | |
| 516 | self.pg0.add_stream(p) |
| 517 | self.pg_enable_capture(self.pg_interfaces) |
| 518 | self.pg_start() |
| 519 | |
| 520 | rx = self.pg2.get_capture(1) |
| 521 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 522 | self.verify_ip( |
| 523 | rx[0], |
| 524 | self.pg2.local_mac, |
| 525 | self.pg1.remote_hosts[5].mac, |
| 526 | self.pg0.remote_ip4, |
| 527 | self.pg1._remote_hosts[5].ip4, |
| 528 | ) |
Neale Ranns | 3983ac2 | 2017-03-10 11:53:27 -0800 | [diff] [blame] | 529 | |
| 530 | # |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 531 | # ARP requests from hosts in pg1's subnet sent on pg2 are replied to |
| 532 | # with the unnumbered interface's address as the source |
| 533 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 534 | p = Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg2.remote_mac) / ARP( |
| 535 | op="who-has", |
| 536 | hwsrc=self.pg2.remote_mac, |
| 537 | pdst=self.pg1.local_ip4, |
| 538 | psrc=self.pg1.remote_hosts[6].ip4, |
| 539 | ) |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 540 | |
| 541 | self.pg2.add_stream(p) |
| 542 | self.pg_enable_capture(self.pg_interfaces) |
| 543 | self.pg_start() |
| 544 | |
| 545 | rx = self.pg2.get_capture(1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 546 | self.verify_arp_resp( |
| 547 | rx[0], |
| 548 | self.pg2.local_mac, |
| 549 | self.pg2.remote_mac, |
| 550 | self.pg1.local_ip4, |
| 551 | self.pg1.remote_hosts[6].ip4, |
| 552 | ) |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 553 | |
| 554 | # |
| 555 | # An attached host route out of pg2 for an undiscovered hosts generates |
| 556 | # an ARP request with the unnumbered address as the source |
| 557 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 558 | att_unnum = VppIpRoute( |
| 559 | self, |
| 560 | self.pg1.remote_hosts[7].ip4, |
| 561 | 32, |
| 562 | [VppRoutePath("0.0.0.0", self.pg2.sw_if_index)], |
| 563 | ) |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 564 | att_unnum.add_vpp_config() |
| 565 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 566 | p = ( |
| 567 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 568 | / IP(src=self.pg0.remote_ip4, dst=self.pg1._remote_hosts[7].ip4) |
| 569 | / UDP(sport=1234, dport=1234) |
| 570 | / Raw() |
| 571 | ) |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 572 | |
| 573 | self.pg0.add_stream(p) |
| 574 | self.pg_enable_capture(self.pg_interfaces) |
| 575 | self.pg_start() |
| 576 | |
| 577 | rx = self.pg2.get_capture(1) |
| 578 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 579 | self.verify_arp_req( |
| 580 | rx[0], self.pg2.local_mac, self.pg1.local_ip4, self.pg1._remote_hosts[7].ip4 |
| 581 | ) |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 582 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 583 | p = Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg2.remote_mac) / ARP( |
| 584 | op="who-has", |
| 585 | hwsrc=self.pg2.remote_mac, |
| 586 | pdst=self.pg1.local_ip4, |
| 587 | psrc=self.pg1.remote_hosts[7].ip4, |
| 588 | ) |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 589 | |
| 590 | self.pg2.add_stream(p) |
| 591 | self.pg_enable_capture(self.pg_interfaces) |
| 592 | self.pg_start() |
| 593 | |
| 594 | rx = self.pg2.get_capture(1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 595 | self.verify_arp_resp( |
| 596 | rx[0], |
| 597 | self.pg2.local_mac, |
| 598 | self.pg2.remote_mac, |
| 599 | self.pg1.local_ip4, |
| 600 | self.pg1.remote_hosts[7].ip4, |
| 601 | ) |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 602 | |
| 603 | # |
| 604 | # An attached host route as yet unresolved out of pg2 for an |
| 605 | # undiscovered host, an ARP requests begets a response. |
| 606 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 607 | att_unnum1 = VppIpRoute( |
| 608 | self, |
| 609 | self.pg1.remote_hosts[8].ip4, |
| 610 | 32, |
| 611 | [VppRoutePath("0.0.0.0", self.pg2.sw_if_index)], |
| 612 | ) |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 613 | att_unnum1.add_vpp_config() |
| 614 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 615 | p = Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg2.remote_mac) / ARP( |
| 616 | op="who-has", |
| 617 | hwsrc=self.pg2.remote_mac, |
| 618 | pdst=self.pg1.local_ip4, |
| 619 | psrc=self.pg1.remote_hosts[8].ip4, |
| 620 | ) |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 621 | |
| 622 | self.pg2.add_stream(p) |
| 623 | self.pg_enable_capture(self.pg_interfaces) |
| 624 | self.pg_start() |
| 625 | |
| 626 | rx = self.pg2.get_capture(1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 627 | self.verify_arp_resp( |
| 628 | rx[0], |
| 629 | self.pg2.local_mac, |
| 630 | self.pg2.remote_mac, |
| 631 | self.pg1.local_ip4, |
| 632 | self.pg1.remote_hosts[8].ip4, |
| 633 | ) |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 634 | |
| 635 | # |
Neale Ranns | 30d0fd4 | 2017-05-30 07:30:04 -0700 | [diff] [blame] | 636 | # Send an ARP request from one of the so-far unlearned remote hosts |
| 637 | # with a VLAN0 tag |
| 638 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 639 | p = ( |
| 640 | Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg1._remote_hosts[9].mac) |
| 641 | / Dot1Q(vlan=0) |
| 642 | / ARP( |
| 643 | op="who-has", |
| 644 | hwsrc=self.pg1._remote_hosts[9].mac, |
| 645 | pdst=self.pg1.local_ip4, |
| 646 | psrc=self.pg1._remote_hosts[9].ip4, |
| 647 | ) |
| 648 | ) |
Neale Ranns | 30d0fd4 | 2017-05-30 07:30:04 -0700 | [diff] [blame] | 649 | |
| 650 | self.pg1.add_stream(p) |
| 651 | self.pg_enable_capture(self.pg_interfaces) |
| 652 | self.pg_start() |
| 653 | |
| 654 | rx = self.pg1.get_capture(1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 655 | self.verify_arp_resp( |
| 656 | rx[0], |
| 657 | self.pg1.local_mac, |
| 658 | self.pg1._remote_hosts[9].mac, |
| 659 | self.pg1.local_ip4, |
| 660 | self.pg1._remote_hosts[9].ip4, |
| 661 | ) |
Neale Ranns | 30d0fd4 | 2017-05-30 07:30:04 -0700 | [diff] [blame] | 662 | |
| 663 | # |
Paul Vinciguerra | 8feeaff | 2019-03-27 11:25:48 -0700 | [diff] [blame] | 664 | # Add a hierarchy of routes for a host in the sub-net. |
Neale Ranns | ca19361 | 2017-06-14 06:50:08 -0700 | [diff] [blame] | 665 | # Should still get an ARP resp since the cover is attached |
| 666 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 667 | p = Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg1.remote_mac) / ARP( |
| 668 | op="who-has", |
| 669 | hwsrc=self.pg1.remote_mac, |
| 670 | pdst=self.pg1.local_ip4, |
| 671 | psrc=self.pg1.remote_hosts[10].ip4, |
| 672 | ) |
Neale Ranns | ca19361 | 2017-06-14 06:50:08 -0700 | [diff] [blame] | 673 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 674 | r1 = VppIpRoute( |
| 675 | self, |
| 676 | self.pg1.remote_hosts[10].ip4, |
| 677 | 30, |
| 678 | [VppRoutePath(self.pg1.remote_hosts[10].ip4, self.pg1.sw_if_index)], |
| 679 | ) |
Neale Ranns | ca19361 | 2017-06-14 06:50:08 -0700 | [diff] [blame] | 680 | r1.add_vpp_config() |
| 681 | |
| 682 | self.pg1.add_stream(p) |
| 683 | self.pg_enable_capture(self.pg_interfaces) |
| 684 | self.pg_start() |
| 685 | rx = self.pg1.get_capture(1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 686 | self.verify_arp_resp( |
| 687 | rx[0], |
| 688 | self.pg1.local_mac, |
| 689 | self.pg1.remote_mac, |
| 690 | self.pg1.local_ip4, |
| 691 | self.pg1.remote_hosts[10].ip4, |
| 692 | ) |
Neale Ranns | ca19361 | 2017-06-14 06:50:08 -0700 | [diff] [blame] | 693 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 694 | r2 = VppIpRoute( |
| 695 | self, |
| 696 | self.pg1.remote_hosts[10].ip4, |
| 697 | 32, |
| 698 | [VppRoutePath(self.pg1.remote_hosts[10].ip4, self.pg1.sw_if_index)], |
| 699 | ) |
Neale Ranns | ca19361 | 2017-06-14 06:50:08 -0700 | [diff] [blame] | 700 | r2.add_vpp_config() |
| 701 | |
| 702 | self.pg1.add_stream(p) |
| 703 | self.pg_enable_capture(self.pg_interfaces) |
| 704 | self.pg_start() |
| 705 | rx = self.pg1.get_capture(1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 706 | self.verify_arp_resp( |
| 707 | rx[0], |
| 708 | self.pg1.local_mac, |
| 709 | self.pg1.remote_mac, |
| 710 | self.pg1.local_ip4, |
| 711 | self.pg1.remote_hosts[10].ip4, |
| 712 | ) |
Neale Ranns | ca19361 | 2017-06-14 06:50:08 -0700 | [diff] [blame] | 713 | |
| 714 | # |
| 715 | # add an ARP entry that's not on the sub-net and so whose |
| 716 | # adj-fib fails the refinement check. then send an ARP request |
| 717 | # from that source |
| 718 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 719 | a1 = VppNeighbor( |
| 720 | self, self.pg0.sw_if_index, self.pg0.remote_mac, "100.100.100.50" |
| 721 | ) |
Neale Ranns | ca19361 | 2017-06-14 06:50:08 -0700 | [diff] [blame] | 722 | a1.add_vpp_config() |
| 723 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 724 | p = Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) / ARP( |
| 725 | op="who-has", |
| 726 | hwsrc=self.pg0.remote_mac, |
| 727 | psrc="100.100.100.50", |
| 728 | pdst=self.pg0.remote_ip4, |
| 729 | ) |
| 730 | self.send_and_assert_no_replies(self.pg0, p, "ARP req for from failed adj-fib") |
Neale Ranns | ca19361 | 2017-06-14 06:50:08 -0700 | [diff] [blame] | 731 | |
| 732 | # |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 733 | # ERROR Cases |
| 734 | # 1 - don't respond to ARP request for address not within the |
| 735 | # interface's sub-net |
Neale Ranns | d5b6aa1 | 2017-05-16 08:46:45 -0700 | [diff] [blame] | 736 | # 1b - nor within the unnumbered subnet |
| 737 | # 1c - nor within the subnet of a different interface |
| 738 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 739 | p = Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) / ARP( |
| 740 | op="who-has", |
| 741 | hwsrc=self.pg0.remote_mac, |
| 742 | pdst="10.10.10.3", |
| 743 | psrc=self.pg0.remote_ip4, |
| 744 | ) |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 745 | self.send_and_assert_no_replies( |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 746 | self.pg0, p, "ARP req for non-local destination" |
| 747 | ) |
| 748 | self.assertFalse(find_nbr(self, self.pg0.sw_if_index, "10.10.10.3")) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 749 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 750 | p = Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg2.remote_mac) / ARP( |
| 751 | op="who-has", |
| 752 | hwsrc=self.pg2.remote_mac, |
| 753 | pdst="10.10.10.3", |
| 754 | psrc=self.pg1.remote_hosts[7].ip4, |
| 755 | ) |
| 756 | self.send_and_assert_no_replies( |
| 757 | self.pg0, p, "ARP req for non-local destination - unnum" |
| 758 | ) |
| 759 | |
| 760 | p = Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) / ARP( |
| 761 | op="who-has", |
| 762 | hwsrc=self.pg0.remote_mac, |
| 763 | pdst=self.pg1.local_ip4, |
| 764 | psrc=self.pg1.remote_ip4, |
| 765 | ) |
| 766 | self.send_and_assert_no_replies(self.pg0, p, "ARP req diff sub-net") |
| 767 | self.assertFalse(find_nbr(self, self.pg0.sw_if_index, self.pg1.remote_ip4)) |
Neale Ranns | d5b6aa1 | 2017-05-16 08:46:45 -0700 | [diff] [blame] | 768 | |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 769 | # |
| 770 | # 2 - don't respond to ARP request from an address not within the |
| 771 | # interface's sub-net |
Paul Vinciguerra | 8feeaff | 2019-03-27 11:25:48 -0700 | [diff] [blame] | 772 | # 2b - to a proxied address |
| 773 | # 2c - not within a different interface's sub-net |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 774 | p = Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) / ARP( |
| 775 | op="who-has", |
| 776 | hwsrc=self.pg0.remote_mac, |
| 777 | psrc="10.10.10.3", |
| 778 | pdst=self.pg0.local_ip4, |
| 779 | ) |
| 780 | self.send_and_assert_no_replies(self.pg0, p, "ARP req for non-local source") |
| 781 | p = Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg2.remote_mac) / ARP( |
| 782 | op="who-has", |
| 783 | hwsrc=self.pg2.remote_mac, |
| 784 | psrc="10.10.10.3", |
| 785 | pdst=self.pg0.local_ip4, |
| 786 | ) |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 787 | self.send_and_assert_no_replies( |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 788 | self.pg0, p, "ARP req for non-local source - unnum" |
| 789 | ) |
| 790 | p = Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) / ARP( |
| 791 | op="who-has", |
| 792 | hwsrc=self.pg0.remote_mac, |
| 793 | psrc=self.pg1.remote_ip4, |
| 794 | pdst=self.pg0.local_ip4, |
| 795 | ) |
| 796 | self.send_and_assert_no_replies(self.pg0, p, "ARP req for non-local source 2c") |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 797 | |
| 798 | # |
| 799 | # 3 - don't respond to ARP request from an address that belongs to |
| 800 | # the router |
| 801 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 802 | p = Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) / ARP( |
| 803 | op="who-has", |
| 804 | hwsrc=self.pg0.remote_mac, |
| 805 | psrc=self.pg0.local_ip4, |
| 806 | pdst=self.pg0.local_ip4, |
| 807 | ) |
| 808 | self.send_and_assert_no_replies(self.pg0, p, "ARP req for non-local source") |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 809 | |
| 810 | # |
| 811 | # 4 - don't respond to ARP requests that has mac source different |
| 812 | # from ARP request HW source |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 813 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 814 | p = Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) / ARP( |
| 815 | op="who-has", |
| 816 | hwsrc="00:00:00:DE:AD:BE", |
| 817 | psrc=self.pg0.remote_ip4, |
| 818 | pdst=self.pg0.local_ip4, |
| 819 | ) |
| 820 | self.send_and_assert_no_replies(self.pg0, p, "ARP req for non-local source") |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 821 | |
| 822 | # |
zhaoqingling | b4c42cd | 2017-12-23 15:20:59 +0800 | [diff] [blame] | 823 | # 5 - don't respond to ARP requests for address within the |
| 824 | # interface's sub-net but not the interface's address |
| 825 | # |
| 826 | self.pg0.generate_remote_hosts(2) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 827 | p = Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) / ARP( |
| 828 | op="who-has", |
| 829 | hwsrc=self.pg0.remote_mac, |
| 830 | psrc=self.pg0.remote_hosts[0].ip4, |
| 831 | pdst=self.pg0.remote_hosts[1].ip4, |
| 832 | ) |
| 833 | self.send_and_assert_no_replies( |
| 834 | self.pg0, p, "ARP req for non-local destination" |
| 835 | ) |
zhaoqingling | b4c42cd | 2017-12-23 15:20:59 +0800 | [diff] [blame] | 836 | |
| 837 | # |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 838 | # cleanup |
| 839 | # |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 840 | static_arp.remove_vpp_config() |
Neale Ranns | 3983ac2 | 2017-03-10 11:53:27 -0800 | [diff] [blame] | 841 | self.pg2.unset_unnumbered(self.pg1.sw_if_index) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 842 | |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 843 | # need this to flush the adj-fibs |
| 844 | self.pg2.unset_unnumbered(self.pg1.sw_if_index) |
| 845 | self.pg2.admin_down() |
Neale Ranns | ca19361 | 2017-06-14 06:50:08 -0700 | [diff] [blame] | 846 | self.pg1.admin_down() |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 847 | |
Neale Ranns | 24b170a | 2017-08-15 05:33:11 -0700 | [diff] [blame] | 848 | def test_proxy_mirror_arp(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 849 | """Interface Mirror Proxy ARP""" |
Neale Ranns | 24b170a | 2017-08-15 05:33:11 -0700 | [diff] [blame] | 850 | |
| 851 | # |
| 852 | # When VPP has an interface whose address is also applied to a TAP |
| 853 | # interface on the host, then VPP's TAP interface will be unnumbered |
| 854 | # to the 'real' interface and do proxy ARP from the host. |
| 855 | # the curious aspect of this setup is that ARP requests from the host |
| 856 | # will come from the VPP's own address. |
| 857 | # |
| 858 | self.pg0.generate_remote_hosts(2) |
| 859 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 860 | arp_req_from_me = Ether(src=self.pg2.remote_mac, dst="ff:ff:ff:ff:ff:ff") / ARP( |
| 861 | op="who-has", |
| 862 | hwsrc=self.pg2.remote_mac, |
| 863 | pdst=self.pg0.remote_hosts[1].ip4, |
| 864 | psrc=self.pg0.local_ip4, |
| 865 | ) |
Neale Ranns | 24b170a | 2017-08-15 05:33:11 -0700 | [diff] [blame] | 866 | |
| 867 | # |
| 868 | # Configure Proxy ARP for the subnet on PG0addresses on pg0 |
| 869 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 870 | self.vapi.proxy_arp_add_del( |
| 871 | proxy={ |
| 872 | "table_id": 0, |
| 873 | "low": self.pg0._local_ip4_subnet, |
| 874 | "hi": self.pg0._local_ip4_bcast, |
| 875 | }, |
| 876 | is_add=1, |
| 877 | ) |
Neale Ranns | 24b170a | 2017-08-15 05:33:11 -0700 | [diff] [blame] | 878 | |
| 879 | # Make pg2 un-numbered to pg0 |
| 880 | # |
| 881 | self.pg2.set_unnumbered(self.pg0.sw_if_index) |
| 882 | |
| 883 | # |
| 884 | # Enable pg2 for proxy ARP |
| 885 | # |
| 886 | self.pg2.set_proxy_arp() |
| 887 | |
| 888 | # |
| 889 | # Send the ARP request with an originating address that |
| 890 | # is VPP's own address |
| 891 | # |
Neale Ranns | 240dcb2 | 2020-04-23 09:04:59 +0000 | [diff] [blame] | 892 | rx = self.send_and_expect(self.pg2, [arp_req_from_me], self.pg2) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 893 | self.verify_arp_resp( |
| 894 | rx[0], |
| 895 | self.pg2.local_mac, |
| 896 | self.pg2.remote_mac, |
| 897 | self.pg0.remote_hosts[1].ip4, |
| 898 | self.pg0.local_ip4, |
| 899 | ) |
Neale Ranns | 24b170a | 2017-08-15 05:33:11 -0700 | [diff] [blame] | 900 | |
| 901 | # |
| 902 | # validate we have not learned an ARP entry as a result of this |
| 903 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 904 | self.assertFalse(find_nbr(self, self.pg2.sw_if_index, self.pg0.local_ip4)) |
Neale Ranns | 24b170a | 2017-08-15 05:33:11 -0700 | [diff] [blame] | 905 | |
| 906 | # |
Neale Ranns | 240dcb2 | 2020-04-23 09:04:59 +0000 | [diff] [blame] | 907 | # setup a punt redirect so packets from the uplink go to the tap |
| 908 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 909 | redirect = VppIpPuntRedirect( |
| 910 | self, self.pg0.sw_if_index, self.pg2.sw_if_index, self.pg0.local_ip4 |
| 911 | ) |
Jakub Grajciar | 2df2f75 | 2020-12-01 11:23:44 +0100 | [diff] [blame] | 912 | redirect.add_vpp_config() |
Neale Ranns | 240dcb2 | 2020-04-23 09:04:59 +0000 | [diff] [blame] | 913 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 914 | p_tcp = ( |
| 915 | Ether( |
| 916 | src=self.pg0.remote_mac, |
| 917 | dst=self.pg0.local_mac, |
| 918 | ) |
| 919 | / IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) |
| 920 | / TCP(sport=80, dport=80) |
| 921 | / Raw() |
| 922 | ) |
Neale Ranns | 240dcb2 | 2020-04-23 09:04:59 +0000 | [diff] [blame] | 923 | rx = self.send_and_expect(self.pg0, [p_tcp], self.pg2) |
| 924 | |
| 925 | # there's no ARP entry so this is an ARP req |
| 926 | self.assertTrue(rx[0].haslayer(ARP)) |
| 927 | |
| 928 | # and ARP entry for VPP's pg0 address on the host interface |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 929 | n1 = VppNeighbor( |
| 930 | self, |
| 931 | self.pg2.sw_if_index, |
| 932 | self.pg2.remote_mac, |
| 933 | self.pg0.local_ip4, |
| 934 | is_no_fib_entry=True, |
| 935 | ).add_vpp_config() |
Neale Ranns | 240dcb2 | 2020-04-23 09:04:59 +0000 | [diff] [blame] | 936 | # now the packets shold forward |
| 937 | rx = self.send_and_expect(self.pg0, [p_tcp], self.pg2) |
| 938 | self.assertFalse(rx[0].haslayer(ARP)) |
| 939 | self.assertEqual(rx[0][Ether].dst, self.pg2.remote_mac) |
| 940 | |
| 941 | # |
| 942 | # flush the neighbor cache on the uplink |
| 943 | # |
| 944 | af = VppEnum.vl_api_address_family_t |
| 945 | self.vapi.ip_neighbor_flush(af.ADDRESS_IP4, self.pg0.sw_if_index) |
| 946 | |
| 947 | # ensure we can still resolve the ARPs on the uplink |
| 948 | self.pg0.resolve_arp() |
| 949 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 950 | self.assertTrue(find_nbr(self, self.pg0.sw_if_index, self.pg0.remote_ip4)) |
Neale Ranns | 240dcb2 | 2020-04-23 09:04:59 +0000 | [diff] [blame] | 951 | |
| 952 | # |
Neale Ranns | 24b170a | 2017-08-15 05:33:11 -0700 | [diff] [blame] | 953 | # cleanup |
| 954 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 955 | self.vapi.proxy_arp_add_del( |
| 956 | proxy={ |
| 957 | "table_id": 0, |
| 958 | "low": self.pg0._local_ip4_subnet, |
| 959 | "hi": self.pg0._local_ip4_bcast, |
| 960 | }, |
| 961 | is_add=0, |
| 962 | ) |
Jakub Grajciar | 2df2f75 | 2020-12-01 11:23:44 +0100 | [diff] [blame] | 963 | redirect.remove_vpp_config() |
Neale Ranns | 24b170a | 2017-08-15 05:33:11 -0700 | [diff] [blame] | 964 | |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 965 | def test_proxy_arp(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 966 | """Proxy ARP""" |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 967 | |
Neale Ranns | d5b6aa1 | 2017-05-16 08:46:45 -0700 | [diff] [blame] | 968 | self.pg1.generate_remote_hosts(2) |
| 969 | |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 970 | # |
Paul Vinciguerra | 8feeaff | 2019-03-27 11:25:48 -0700 | [diff] [blame] | 971 | # Proxy ARP request packets for each interface |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 972 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 973 | arp_req_pg0 = Ether(src=self.pg0.remote_mac, dst="ff:ff:ff:ff:ff:ff") / ARP( |
| 974 | op="who-has", |
| 975 | hwsrc=self.pg0.remote_mac, |
| 976 | pdst="10.10.10.3", |
| 977 | psrc=self.pg0.remote_ip4, |
| 978 | ) |
| 979 | arp_req_pg0_tagged = ( |
| 980 | Ether(src=self.pg0.remote_mac, dst="ff:ff:ff:ff:ff:ff") |
| 981 | / Dot1Q(vlan=0) |
| 982 | / ARP( |
| 983 | op="who-has", |
| 984 | hwsrc=self.pg0.remote_mac, |
| 985 | pdst="10.10.10.3", |
| 986 | psrc=self.pg0.remote_ip4, |
| 987 | ) |
| 988 | ) |
| 989 | arp_req_pg1 = Ether(src=self.pg1.remote_mac, dst="ff:ff:ff:ff:ff:ff") / ARP( |
| 990 | op="who-has", |
| 991 | hwsrc=self.pg1.remote_mac, |
| 992 | pdst="10.10.10.3", |
| 993 | psrc=self.pg1.remote_ip4, |
| 994 | ) |
| 995 | arp_req_pg2 = Ether(src=self.pg2.remote_mac, dst="ff:ff:ff:ff:ff:ff") / ARP( |
| 996 | op="who-has", |
| 997 | hwsrc=self.pg2.remote_mac, |
| 998 | pdst="10.10.10.3", |
| 999 | psrc=self.pg1.remote_hosts[1].ip4, |
| 1000 | ) |
| 1001 | arp_req_pg3 = Ether(src=self.pg3.remote_mac, dst="ff:ff:ff:ff:ff:ff") / ARP( |
| 1002 | op="who-has", |
| 1003 | hwsrc=self.pg3.remote_mac, |
| 1004 | pdst="10.10.10.3", |
| 1005 | psrc=self.pg3.remote_ip4, |
| 1006 | ) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 1007 | |
| 1008 | # |
| 1009 | # Configure Proxy ARP for 10.10.10.0 -> 10.10.10.124 |
| 1010 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1011 | self.vapi.proxy_arp_add_del( |
| 1012 | proxy={"table_id": 0, "low": "10.10.10.2", "hi": "10.10.10.124"}, is_add=1 |
| 1013 | ) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 1014 | |
| 1015 | # |
| 1016 | # No responses are sent when the interfaces are not enabled for proxy |
| 1017 | # ARP |
| 1018 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1019 | self.send_and_assert_no_replies( |
| 1020 | self.pg0, arp_req_pg0, "ARP req from unconfigured interface" |
| 1021 | ) |
| 1022 | self.send_and_assert_no_replies( |
| 1023 | self.pg2, arp_req_pg2, "ARP req from unconfigured interface" |
| 1024 | ) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 1025 | |
| 1026 | # |
| 1027 | # Make pg2 un-numbered to pg1 |
| 1028 | # still won't reply. |
| 1029 | # |
| 1030 | self.pg2.set_unnumbered(self.pg1.sw_if_index) |
| 1031 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1032 | self.send_and_assert_no_replies( |
| 1033 | self.pg2, arp_req_pg2, "ARP req from unnumbered interface" |
| 1034 | ) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 1035 | |
| 1036 | # |
| 1037 | # Enable each interface to reply to proxy ARPs |
| 1038 | # |
| 1039 | for i in self.pg_interfaces: |
| 1040 | i.set_proxy_arp() |
| 1041 | |
| 1042 | # |
| 1043 | # Now each of the interfaces should reply to a request to a proxied |
| 1044 | # address |
| 1045 | # |
| 1046 | self.pg0.add_stream(arp_req_pg0) |
| 1047 | self.pg_enable_capture(self.pg_interfaces) |
| 1048 | self.pg_start() |
| 1049 | |
| 1050 | rx = self.pg0.get_capture(1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1051 | self.verify_arp_resp( |
| 1052 | rx[0], |
| 1053 | self.pg0.local_mac, |
| 1054 | self.pg0.remote_mac, |
| 1055 | "10.10.10.3", |
| 1056 | self.pg0.remote_ip4, |
| 1057 | ) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 1058 | |
Neale Ranns | 30d0fd4 | 2017-05-30 07:30:04 -0700 | [diff] [blame] | 1059 | self.pg0.add_stream(arp_req_pg0_tagged) |
| 1060 | self.pg_enable_capture(self.pg_interfaces) |
| 1061 | self.pg_start() |
| 1062 | |
| 1063 | rx = self.pg0.get_capture(1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1064 | self.verify_arp_resp( |
| 1065 | rx[0], |
| 1066 | self.pg0.local_mac, |
| 1067 | self.pg0.remote_mac, |
| 1068 | "10.10.10.3", |
| 1069 | self.pg0.remote_ip4, |
| 1070 | ) |
Neale Ranns | 30d0fd4 | 2017-05-30 07:30:04 -0700 | [diff] [blame] | 1071 | |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 1072 | self.pg1.add_stream(arp_req_pg1) |
| 1073 | self.pg_enable_capture(self.pg_interfaces) |
| 1074 | self.pg_start() |
| 1075 | |
| 1076 | rx = self.pg1.get_capture(1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1077 | self.verify_arp_resp( |
| 1078 | rx[0], |
| 1079 | self.pg1.local_mac, |
| 1080 | self.pg1.remote_mac, |
| 1081 | "10.10.10.3", |
| 1082 | self.pg1.remote_ip4, |
| 1083 | ) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 1084 | |
| 1085 | self.pg2.add_stream(arp_req_pg2) |
| 1086 | self.pg_enable_capture(self.pg_interfaces) |
| 1087 | self.pg_start() |
| 1088 | |
| 1089 | rx = self.pg2.get_capture(1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1090 | self.verify_arp_resp( |
| 1091 | rx[0], |
| 1092 | self.pg2.local_mac, |
| 1093 | self.pg2.remote_mac, |
| 1094 | "10.10.10.3", |
| 1095 | self.pg1.remote_hosts[1].ip4, |
| 1096 | ) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 1097 | |
| 1098 | # |
| 1099 | # A request for an address out of the configured range |
| 1100 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1101 | arp_req_pg1_hi = Ether(src=self.pg1.remote_mac, dst="ff:ff:ff:ff:ff:ff") / ARP( |
| 1102 | op="who-has", |
| 1103 | hwsrc=self.pg1.remote_mac, |
| 1104 | pdst="10.10.10.125", |
| 1105 | psrc=self.pg1.remote_ip4, |
| 1106 | ) |
| 1107 | self.send_and_assert_no_replies( |
| 1108 | self.pg1, arp_req_pg1_hi, "ARP req out of range HI" |
| 1109 | ) |
| 1110 | arp_req_pg1_low = Ether(src=self.pg1.remote_mac, dst="ff:ff:ff:ff:ff:ff") / ARP( |
| 1111 | op="who-has", |
| 1112 | hwsrc=self.pg1.remote_mac, |
| 1113 | pdst="10.10.10.1", |
| 1114 | psrc=self.pg1.remote_ip4, |
| 1115 | ) |
| 1116 | self.send_and_assert_no_replies( |
| 1117 | self.pg1, arp_req_pg1_low, "ARP req out of range Low" |
| 1118 | ) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 1119 | |
| 1120 | # |
| 1121 | # Request for an address in the proxy range but from an interface |
| 1122 | # in a different VRF |
| 1123 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1124 | self.send_and_assert_no_replies( |
| 1125 | self.pg3, arp_req_pg3, "ARP req from different VRF" |
| 1126 | ) |
Neale Ranns | 39f9d8b | 2017-02-16 21:57:05 -0800 | [diff] [blame] | 1127 | |
| 1128 | # |
| 1129 | # Disable Each interface for proxy ARP |
| 1130 | # - expect none to respond |
| 1131 | # |
| 1132 | for i in self.pg_interfaces: |
| 1133 | i.set_proxy_arp(0) |
| 1134 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1135 | self.send_and_assert_no_replies(self.pg0, arp_req_pg0, "ARP req from disable") |
| 1136 | self.send_and_assert_no_replies(self.pg1, arp_req_pg1, "ARP req from disable") |
| 1137 | self.send_and_assert_no_replies(self.pg2, arp_req_pg2, "ARP req from disable") |
Neale Ranns | 37be736 | 2017-02-21 17:30:26 -0800 | [diff] [blame] | 1138 | |
| 1139 | # |
| 1140 | # clean up on interface 2 |
| 1141 | # |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 1142 | self.pg2.unset_unnumbered(self.pg1.sw_if_index) |
Neale Ranns | 37be736 | 2017-02-21 17:30:26 -0800 | [diff] [blame] | 1143 | |
| 1144 | def test_mpls(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1145 | """MPLS""" |
Neale Ranns | 37be736 | 2017-02-21 17:30:26 -0800 | [diff] [blame] | 1146 | |
| 1147 | # |
| 1148 | # Interface 2 does not yet have ip4 config |
| 1149 | # |
| 1150 | self.pg2.config_ip4() |
| 1151 | self.pg2.generate_remote_hosts(2) |
| 1152 | |
| 1153 | # |
Paul Vinciguerra | 8feeaff | 2019-03-27 11:25:48 -0700 | [diff] [blame] | 1154 | # Add a route with out going label via an ARP unresolved next-hop |
Neale Ranns | 37be736 | 2017-02-21 17:30:26 -0800 | [diff] [blame] | 1155 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1156 | ip_10_0_0_1 = VppIpRoute( |
| 1157 | self, |
| 1158 | "10.0.0.1", |
| 1159 | 32, |
| 1160 | [ |
| 1161 | VppRoutePath( |
| 1162 | self.pg2.remote_hosts[1].ip4, self.pg2.sw_if_index, labels=[55] |
| 1163 | ) |
| 1164 | ], |
| 1165 | ) |
Neale Ranns | 37be736 | 2017-02-21 17:30:26 -0800 | [diff] [blame] | 1166 | ip_10_0_0_1.add_vpp_config() |
| 1167 | |
| 1168 | # |
| 1169 | # packets should generate an ARP request |
| 1170 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1171 | p = ( |
| 1172 | Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) |
| 1173 | / IP(src=self.pg0.remote_ip4, dst="10.0.0.1") |
| 1174 | / UDP(sport=1234, dport=1234) |
| 1175 | / Raw(b"\xa5" * 100) |
| 1176 | ) |
Neale Ranns | 37be736 | 2017-02-21 17:30:26 -0800 | [diff] [blame] | 1177 | |
| 1178 | self.pg0.add_stream(p) |
| 1179 | self.pg_enable_capture(self.pg_interfaces) |
| 1180 | self.pg_start() |
| 1181 | |
| 1182 | rx = self.pg2.get_capture(1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1183 | self.verify_arp_req( |
| 1184 | rx[0], self.pg2.local_mac, self.pg2.local_ip4, self.pg2._remote_hosts[1].ip4 |
| 1185 | ) |
Neale Ranns | 37be736 | 2017-02-21 17:30:26 -0800 | [diff] [blame] | 1186 | |
| 1187 | # |
| 1188 | # now resolve the neighbours |
| 1189 | # |
| 1190 | self.pg2.configure_ipv4_neighbors() |
| 1191 | |
| 1192 | # |
| 1193 | # Now packet should be properly MPLS encapped. |
| 1194 | # This verifies that MPLS link-type adjacencies are completed |
| 1195 | # when the ARP entry resolves |
| 1196 | # |
| 1197 | self.pg0.add_stream(p) |
| 1198 | self.pg_enable_capture(self.pg_interfaces) |
| 1199 | self.pg_start() |
| 1200 | |
| 1201 | rx = self.pg2.get_capture(1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1202 | self.verify_ip_o_mpls( |
| 1203 | rx[0], |
| 1204 | self.pg2.local_mac, |
| 1205 | self.pg2.remote_hosts[1].mac, |
| 1206 | 55, |
| 1207 | self.pg0.remote_ip4, |
| 1208 | "10.0.0.1", |
| 1209 | ) |
Neale Ranns | 4b919a5 | 2017-03-11 05:55:21 -0800 | [diff] [blame] | 1210 | self.pg2.unconfig_ip4() |
Neale Ranns | 37be736 | 2017-02-21 17:30:26 -0800 | [diff] [blame] | 1211 | |
Matthew Smith | cb9ab47 | 2017-05-16 21:35:56 -0500 | [diff] [blame] | 1212 | def test_arp_vrrp(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1213 | """ARP reply with VRRP virtual src hw addr""" |
Matthew Smith | cb9ab47 | 2017-05-16 21:35:56 -0500 | [diff] [blame] | 1214 | |
| 1215 | # |
| 1216 | # IP packet destined for pg1 remote host arrives on pg0 resulting |
| 1217 | # in an ARP request for the address of the remote host on pg1 |
| 1218 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1219 | p0 = ( |
| 1220 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1221 | / IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) |
| 1222 | / UDP(sport=1234, dport=1234) |
| 1223 | / Raw() |
| 1224 | ) |
Matthew Smith | cb9ab47 | 2017-05-16 21:35:56 -0500 | [diff] [blame] | 1225 | |
Neale Ranns | 3702930 | 2018-08-10 05:30:06 -0700 | [diff] [blame] | 1226 | rx1 = self.send_and_expect(self.pg0, [p0], self.pg1) |
Matthew Smith | cb9ab47 | 2017-05-16 21:35:56 -0500 | [diff] [blame] | 1227 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1228 | self.verify_arp_req( |
| 1229 | rx1[0], self.pg1.local_mac, self.pg1.local_ip4, self.pg1.remote_ip4 |
| 1230 | ) |
Matthew Smith | cb9ab47 | 2017-05-16 21:35:56 -0500 | [diff] [blame] | 1231 | |
| 1232 | # |
| 1233 | # ARP reply for address of pg1 remote host arrives on pg1 with |
| 1234 | # the hw src addr set to a value in the VRRP IPv4 range of |
| 1235 | # MAC addresses |
| 1236 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1237 | p1 = Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / ARP( |
| 1238 | op="is-at", |
| 1239 | hwdst=self.pg1.local_mac, |
| 1240 | hwsrc="00:00:5e:00:01:09", |
| 1241 | pdst=self.pg1.local_ip4, |
| 1242 | psrc=self.pg1.remote_ip4, |
| 1243 | ) |
Matthew Smith | cb9ab47 | 2017-05-16 21:35:56 -0500 | [diff] [blame] | 1244 | |
Neale Ranns | 3702930 | 2018-08-10 05:30:06 -0700 | [diff] [blame] | 1245 | self.send_and_assert_no_replies(self.pg1, p1, "ARP reply") |
Matthew Smith | cb9ab47 | 2017-05-16 21:35:56 -0500 | [diff] [blame] | 1246 | |
| 1247 | # |
| 1248 | # IP packet destined for pg1 remote host arrives on pg0 again. |
| 1249 | # VPP should have an ARP entry for that address now and the packet |
| 1250 | # should be sent out pg1. |
| 1251 | # |
Neale Ranns | 3702930 | 2018-08-10 05:30:06 -0700 | [diff] [blame] | 1252 | rx1 = self.send_and_expect(self.pg0, [p0], self.pg1) |
Matthew Smith | cb9ab47 | 2017-05-16 21:35:56 -0500 | [diff] [blame] | 1253 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1254 | self.verify_ip( |
| 1255 | rx1[0], |
| 1256 | self.pg1.local_mac, |
| 1257 | "00:00:5e:00:01:09", |
| 1258 | self.pg0.remote_ip4, |
| 1259 | self.pg1.remote_ip4, |
| 1260 | ) |
Matthew Smith | cb9ab47 | 2017-05-16 21:35:56 -0500 | [diff] [blame] | 1261 | |
| 1262 | self.pg1.admin_down() |
| 1263 | self.pg1.admin_up() |
| 1264 | |
Neale Ranns | dcd6d62 | 2017-05-26 02:59:16 -0700 | [diff] [blame] | 1265 | def test_arp_duplicates(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1266 | """ARP Duplicates""" |
Neale Ranns | dcd6d62 | 2017-05-26 02:59:16 -0700 | [diff] [blame] | 1267 | |
| 1268 | # |
| 1269 | # Generate some hosts on the LAN |
| 1270 | # |
| 1271 | self.pg1.generate_remote_hosts(3) |
| 1272 | |
| 1273 | # |
| 1274 | # Add host 1 on pg1 and pg2 |
| 1275 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1276 | arp_pg1 = VppNeighbor( |
| 1277 | self, |
| 1278 | self.pg1.sw_if_index, |
| 1279 | self.pg1.remote_hosts[1].mac, |
| 1280 | self.pg1.remote_hosts[1].ip4, |
| 1281 | ) |
Neale Ranns | dcd6d62 | 2017-05-26 02:59:16 -0700 | [diff] [blame] | 1282 | arp_pg1.add_vpp_config() |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1283 | arp_pg2 = VppNeighbor( |
| 1284 | self, |
| 1285 | self.pg2.sw_if_index, |
| 1286 | self.pg2.remote_mac, |
| 1287 | self.pg1.remote_hosts[1].ip4, |
| 1288 | ) |
Neale Ranns | dcd6d62 | 2017-05-26 02:59:16 -0700 | [diff] [blame] | 1289 | arp_pg2.add_vpp_config() |
| 1290 | |
| 1291 | # |
| 1292 | # IP packet destined for pg1 remote host arrives on pg1 again. |
| 1293 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1294 | p = ( |
| 1295 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1296 | / IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_hosts[1].ip4) |
| 1297 | / UDP(sport=1234, dport=1234) |
| 1298 | / Raw() |
| 1299 | ) |
Neale Ranns | dcd6d62 | 2017-05-26 02:59:16 -0700 | [diff] [blame] | 1300 | |
| 1301 | self.pg0.add_stream(p) |
| 1302 | self.pg_enable_capture(self.pg_interfaces) |
| 1303 | self.pg_start() |
| 1304 | |
| 1305 | rx1 = self.pg1.get_capture(1) |
| 1306 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1307 | self.verify_ip( |
| 1308 | rx1[0], |
| 1309 | self.pg1.local_mac, |
| 1310 | self.pg1.remote_hosts[1].mac, |
| 1311 | self.pg0.remote_ip4, |
| 1312 | self.pg1.remote_hosts[1].ip4, |
| 1313 | ) |
Neale Ranns | dcd6d62 | 2017-05-26 02:59:16 -0700 | [diff] [blame] | 1314 | |
| 1315 | # |
| 1316 | # remove the duplicate on pg1 |
Paul Vinciguerra | 8feeaff | 2019-03-27 11:25:48 -0700 | [diff] [blame] | 1317 | # packet stream should generate ARPs out of pg1 |
Neale Ranns | dcd6d62 | 2017-05-26 02:59:16 -0700 | [diff] [blame] | 1318 | # |
| 1319 | arp_pg1.remove_vpp_config() |
| 1320 | |
| 1321 | self.pg0.add_stream(p) |
| 1322 | self.pg_enable_capture(self.pg_interfaces) |
| 1323 | self.pg_start() |
| 1324 | |
| 1325 | rx1 = self.pg1.get_capture(1) |
| 1326 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1327 | self.verify_arp_req( |
| 1328 | rx1[0], self.pg1.local_mac, self.pg1.local_ip4, self.pg1.remote_hosts[1].ip4 |
| 1329 | ) |
Neale Ranns | dcd6d62 | 2017-05-26 02:59:16 -0700 | [diff] [blame] | 1330 | |
| 1331 | # |
| 1332 | # Add it back |
| 1333 | # |
| 1334 | arp_pg1.add_vpp_config() |
| 1335 | |
| 1336 | self.pg0.add_stream(p) |
| 1337 | self.pg_enable_capture(self.pg_interfaces) |
| 1338 | self.pg_start() |
| 1339 | |
| 1340 | rx1 = self.pg1.get_capture(1) |
| 1341 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1342 | self.verify_ip( |
| 1343 | rx1[0], |
| 1344 | self.pg1.local_mac, |
| 1345 | self.pg1.remote_hosts[1].mac, |
| 1346 | self.pg0.remote_ip4, |
| 1347 | self.pg1.remote_hosts[1].ip4, |
| 1348 | ) |
Neale Ranns | dcd6d62 | 2017-05-26 02:59:16 -0700 | [diff] [blame] | 1349 | |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 1350 | def test_arp_static(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1351 | """ARP Static""" |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 1352 | self.pg2.generate_remote_hosts(3) |
| 1353 | |
| 1354 | # |
| 1355 | # Add a static ARP entry |
| 1356 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1357 | static_arp = VppNeighbor( |
| 1358 | self, |
| 1359 | self.pg2.sw_if_index, |
| 1360 | self.pg2.remote_hosts[1].mac, |
| 1361 | self.pg2.remote_hosts[1].ip4, |
| 1362 | is_static=1, |
| 1363 | ) |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 1364 | static_arp.add_vpp_config() |
| 1365 | |
| 1366 | # |
| 1367 | # Add the connected prefix to the interface |
| 1368 | # |
| 1369 | self.pg2.config_ip4() |
| 1370 | |
| 1371 | # |
| 1372 | # We should now find the adj-fib |
| 1373 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1374 | self.assertTrue( |
| 1375 | find_nbr( |
| 1376 | self, self.pg2.sw_if_index, self.pg2.remote_hosts[1].ip4, is_static=1 |
| 1377 | ) |
| 1378 | ) |
| 1379 | self.assertTrue(find_route(self, self.pg2.remote_hosts[1].ip4, 32)) |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 1380 | |
| 1381 | # |
| 1382 | # remove the connected |
| 1383 | # |
| 1384 | self.pg2.unconfig_ip4() |
| 1385 | |
| 1386 | # |
| 1387 | # put the interface into table 1 |
| 1388 | # |
| 1389 | self.pg2.set_table_ip4(1) |
| 1390 | |
| 1391 | # |
| 1392 | # configure the same connected and expect to find the |
| 1393 | # adj fib in the new table |
| 1394 | # |
| 1395 | self.pg2.config_ip4() |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1396 | self.assertTrue(find_route(self, self.pg2.remote_hosts[1].ip4, 32, table_id=1)) |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 1397 | |
| 1398 | # |
| 1399 | # clean-up |
| 1400 | # |
| 1401 | self.pg2.unconfig_ip4() |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 1402 | static_arp.remove_vpp_config() |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 1403 | self.pg2.set_table_ip4(0) |
| 1404 | |
Vladimir Isaev | b2f44bd | 2020-07-16 17:05:18 +0300 | [diff] [blame] | 1405 | def test_arp_static_replace_dynamic_same_mac(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1406 | """ARP Static can replace Dynamic (same mac)""" |
Vladimir Isaev | b2f44bd | 2020-07-16 17:05:18 +0300 | [diff] [blame] | 1407 | self.pg2.generate_remote_hosts(1) |
| 1408 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1409 | dyn_arp = VppNeighbor( |
| 1410 | self, |
| 1411 | self.pg2.sw_if_index, |
| 1412 | self.pg2.remote_hosts[0].mac, |
| 1413 | self.pg2.remote_hosts[0].ip4, |
| 1414 | ) |
| 1415 | static_arp = VppNeighbor( |
| 1416 | self, |
| 1417 | self.pg2.sw_if_index, |
| 1418 | self.pg2.remote_hosts[0].mac, |
| 1419 | self.pg2.remote_hosts[0].ip4, |
| 1420 | is_static=1, |
| 1421 | ) |
Vladimir Isaev | b2f44bd | 2020-07-16 17:05:18 +0300 | [diff] [blame] | 1422 | |
| 1423 | # |
| 1424 | # Add a dynamic ARP entry |
| 1425 | # |
| 1426 | dyn_arp.add_vpp_config() |
| 1427 | |
| 1428 | # |
| 1429 | # We should find the dynamic nbr |
| 1430 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1431 | self.assertFalse( |
| 1432 | find_nbr( |
| 1433 | self, self.pg2.sw_if_index, self.pg2.remote_hosts[0].ip4, is_static=1 |
| 1434 | ) |
| 1435 | ) |
| 1436 | self.assertTrue( |
| 1437 | find_nbr( |
| 1438 | self, |
| 1439 | self.pg2.sw_if_index, |
| 1440 | self.pg2.remote_hosts[0].ip4, |
| 1441 | is_static=0, |
| 1442 | mac=self.pg2.remote_hosts[0].mac, |
| 1443 | ) |
| 1444 | ) |
Vladimir Isaev | b2f44bd | 2020-07-16 17:05:18 +0300 | [diff] [blame] | 1445 | |
| 1446 | # |
| 1447 | # Add a static ARP entry with the same mac |
| 1448 | # |
| 1449 | static_arp.add_vpp_config() |
| 1450 | |
| 1451 | # |
| 1452 | # We should now find the static nbr with the same mac |
| 1453 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1454 | self.assertFalse( |
| 1455 | find_nbr( |
| 1456 | self, self.pg2.sw_if_index, self.pg2.remote_hosts[0].ip4, is_static=0 |
| 1457 | ) |
| 1458 | ) |
| 1459 | self.assertTrue( |
| 1460 | find_nbr( |
| 1461 | self, |
| 1462 | self.pg2.sw_if_index, |
| 1463 | self.pg2.remote_hosts[0].ip4, |
| 1464 | is_static=1, |
| 1465 | mac=self.pg2.remote_hosts[0].mac, |
| 1466 | ) |
| 1467 | ) |
Vladimir Isaev | b2f44bd | 2020-07-16 17:05:18 +0300 | [diff] [blame] | 1468 | |
| 1469 | # |
| 1470 | # clean-up |
| 1471 | # |
| 1472 | static_arp.remove_vpp_config() |
| 1473 | |
| 1474 | def test_arp_static_replace_dynamic_diff_mac(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1475 | """ARP Static can replace Dynamic (diff mac)""" |
Vladimir Isaev | b2f44bd | 2020-07-16 17:05:18 +0300 | [diff] [blame] | 1476 | self.pg2.generate_remote_hosts(2) |
| 1477 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1478 | dyn_arp = VppNeighbor( |
| 1479 | self, |
| 1480 | self.pg2.sw_if_index, |
| 1481 | self.pg2.remote_hosts[0].mac, |
| 1482 | self.pg2.remote_hosts[0].ip4, |
| 1483 | ) |
| 1484 | static_arp = VppNeighbor( |
| 1485 | self, |
| 1486 | self.pg2.sw_if_index, |
| 1487 | self.pg2.remote_hosts[1].mac, |
| 1488 | self.pg2.remote_hosts[0].ip4, |
| 1489 | is_static=1, |
| 1490 | ) |
Vladimir Isaev | b2f44bd | 2020-07-16 17:05:18 +0300 | [diff] [blame] | 1491 | |
| 1492 | # |
| 1493 | # Add a dynamic ARP entry |
| 1494 | # |
| 1495 | dyn_arp.add_vpp_config() |
| 1496 | |
| 1497 | # |
| 1498 | # We should find the dynamic nbr |
| 1499 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1500 | self.assertFalse( |
| 1501 | find_nbr( |
| 1502 | self, self.pg2.sw_if_index, self.pg2.remote_hosts[0].ip4, is_static=1 |
| 1503 | ) |
| 1504 | ) |
| 1505 | self.assertTrue( |
| 1506 | find_nbr( |
| 1507 | self, |
| 1508 | self.pg2.sw_if_index, |
| 1509 | self.pg2.remote_hosts[0].ip4, |
| 1510 | is_static=0, |
| 1511 | mac=self.pg2.remote_hosts[0].mac, |
| 1512 | ) |
| 1513 | ) |
Vladimir Isaev | b2f44bd | 2020-07-16 17:05:18 +0300 | [diff] [blame] | 1514 | |
| 1515 | # |
| 1516 | # Add a static ARP entry with a changed mac |
| 1517 | # |
| 1518 | static_arp.add_vpp_config() |
| 1519 | |
| 1520 | # |
| 1521 | # We should now find the static nbr with a changed mac |
| 1522 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1523 | self.assertFalse( |
| 1524 | find_nbr( |
| 1525 | self, self.pg2.sw_if_index, self.pg2.remote_hosts[0].ip4, is_static=0 |
| 1526 | ) |
| 1527 | ) |
| 1528 | self.assertTrue( |
| 1529 | find_nbr( |
| 1530 | self, |
| 1531 | self.pg2.sw_if_index, |
| 1532 | self.pg2.remote_hosts[0].ip4, |
| 1533 | is_static=1, |
| 1534 | mac=self.pg2.remote_hosts[1].mac, |
| 1535 | ) |
| 1536 | ) |
Vladimir Isaev | b2f44bd | 2020-07-16 17:05:18 +0300 | [diff] [blame] | 1537 | |
| 1538 | # |
| 1539 | # clean-up |
| 1540 | # |
| 1541 | static_arp.remove_vpp_config() |
| 1542 | |
Neale Ranns | c819fc6 | 2018-02-16 02:44:05 -0800 | [diff] [blame] | 1543 | def test_arp_incomplete(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1544 | """ARP Incomplete""" |
Neale Ranns | ea8adf7 | 2021-08-13 08:10:59 +0000 | [diff] [blame] | 1545 | self.pg1.generate_remote_hosts(4) |
Neale Ranns | c819fc6 | 2018-02-16 02:44:05 -0800 | [diff] [blame] | 1546 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1547 | p0 = ( |
| 1548 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1549 | / IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_hosts[1].ip4) |
| 1550 | / UDP(sport=1234, dport=1234) |
| 1551 | / Raw() |
| 1552 | ) |
| 1553 | p1 = ( |
| 1554 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1555 | / IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_hosts[2].ip4) |
| 1556 | / UDP(sport=1234, dport=1234) |
| 1557 | / Raw() |
| 1558 | ) |
| 1559 | p2 = ( |
| 1560 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1561 | / IP(src=self.pg0.remote_ip4, dst="1.1.1.1") |
| 1562 | / UDP(sport=1234, dport=1234) |
| 1563 | / Raw() |
| 1564 | ) |
Neale Ranns | c819fc6 | 2018-02-16 02:44:05 -0800 | [diff] [blame] | 1565 | |
| 1566 | # |
| 1567 | # a packet to an unresolved destination generates an ARP request |
| 1568 | # |
| 1569 | rx = self.send_and_expect(self.pg0, [p0], self.pg1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1570 | self.verify_arp_req( |
| 1571 | rx[0], self.pg1.local_mac, self.pg1.local_ip4, self.pg1._remote_hosts[1].ip4 |
| 1572 | ) |
Neale Ranns | c819fc6 | 2018-02-16 02:44:05 -0800 | [diff] [blame] | 1573 | |
| 1574 | # |
| 1575 | # add a neighbour for remote host 1 |
| 1576 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1577 | static_arp = VppNeighbor( |
| 1578 | self, |
| 1579 | self.pg1.sw_if_index, |
| 1580 | self.pg1.remote_hosts[1].mac, |
| 1581 | self.pg1.remote_hosts[1].ip4, |
| 1582 | is_static=1, |
| 1583 | ) |
Neale Ranns | c819fc6 | 2018-02-16 02:44:05 -0800 | [diff] [blame] | 1584 | static_arp.add_vpp_config() |
| 1585 | |
| 1586 | # |
Neale Ranns | ea8adf7 | 2021-08-13 08:10:59 +0000 | [diff] [blame] | 1587 | # add a route through remote host 3 hence we get an incomplete |
| 1588 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1589 | VppIpRoute( |
| 1590 | self, |
| 1591 | "1.1.1.1", |
| 1592 | 32, |
| 1593 | [VppRoutePath(self.pg1.remote_hosts[3].ip4, self.pg1.sw_if_index)], |
| 1594 | ).add_vpp_config() |
Neale Ranns | ea8adf7 | 2021-08-13 08:10:59 +0000 | [diff] [blame] | 1595 | rx = self.send_and_expect(self.pg0, [p2], self.pg1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1596 | self.verify_arp_req( |
| 1597 | rx[0], self.pg1.local_mac, self.pg1.local_ip4, self.pg1._remote_hosts[3].ip4 |
| 1598 | ) |
Neale Ranns | ea8adf7 | 2021-08-13 08:10:59 +0000 | [diff] [blame] | 1599 | |
| 1600 | # |
Neale Ranns | c819fc6 | 2018-02-16 02:44:05 -0800 | [diff] [blame] | 1601 | # change the interface's MAC |
| 1602 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1603 | self.vapi.sw_interface_set_mac_address( |
| 1604 | self.pg1.sw_if_index, "00:00:00:33:33:33" |
| 1605 | ) |
Neale Ranns | c819fc6 | 2018-02-16 02:44:05 -0800 | [diff] [blame] | 1606 | |
| 1607 | # |
| 1608 | # now ARP requests come from the new source mac |
| 1609 | # |
| 1610 | rx = self.send_and_expect(self.pg0, [p1], self.pg1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1611 | self.verify_arp_req( |
| 1612 | rx[0], |
| 1613 | "00:00:00:33:33:33", |
| 1614 | self.pg1.local_ip4, |
| 1615 | self.pg1._remote_hosts[2].ip4, |
| 1616 | ) |
Neale Ranns | ea8adf7 | 2021-08-13 08:10:59 +0000 | [diff] [blame] | 1617 | rx = self.send_and_expect(self.pg0, [p2], self.pg1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1618 | self.verify_arp_req( |
| 1619 | rx[0], |
| 1620 | "00:00:00:33:33:33", |
| 1621 | self.pg1.local_ip4, |
| 1622 | self.pg1._remote_hosts[3].ip4, |
| 1623 | ) |
Neale Ranns | c819fc6 | 2018-02-16 02:44:05 -0800 | [diff] [blame] | 1624 | |
| 1625 | # |
| 1626 | # packets to the resolved host also have the new source mac |
| 1627 | # |
| 1628 | rx = self.send_and_expect(self.pg0, [p0], self.pg1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1629 | self.verify_ip( |
| 1630 | rx[0], |
| 1631 | "00:00:00:33:33:33", |
| 1632 | self.pg1.remote_hosts[1].mac, |
| 1633 | self.pg0.remote_ip4, |
| 1634 | self.pg1.remote_hosts[1].ip4, |
| 1635 | ) |
Neale Ranns | c819fc6 | 2018-02-16 02:44:05 -0800 | [diff] [blame] | 1636 | |
| 1637 | # |
Paul Vinciguerra | 8feeaff | 2019-03-27 11:25:48 -0700 | [diff] [blame] | 1638 | # set the mac address on the interface that does not have a |
Neale Ranns | c819fc6 | 2018-02-16 02:44:05 -0800 | [diff] [blame] | 1639 | # configured subnet and thus no glean |
| 1640 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1641 | self.vapi.sw_interface_set_mac_address( |
| 1642 | self.pg2.sw_if_index, "00:00:00:33:33:33" |
| 1643 | ) |
Neale Ranns | c819fc6 | 2018-02-16 02:44:05 -0800 | [diff] [blame] | 1644 | |
Neale Ranns | 59ae61e | 2018-06-07 18:09:49 -0700 | [diff] [blame] | 1645 | def test_garp(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1646 | """GARP""" |
Neale Ranns | 59ae61e | 2018-06-07 18:09:49 -0700 | [diff] [blame] | 1647 | |
| 1648 | # |
| 1649 | # Generate some hosts on the LAN |
| 1650 | # |
| 1651 | self.pg1.generate_remote_hosts(4) |
Neale Ranns | 22eefd7 | 2020-09-23 11:25:21 +0000 | [diff] [blame] | 1652 | self.pg2.generate_remote_hosts(4) |
Neale Ranns | 59ae61e | 2018-06-07 18:09:49 -0700 | [diff] [blame] | 1653 | |
| 1654 | # |
| 1655 | # And an ARP entry |
| 1656 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1657 | arp = VppNeighbor( |
| 1658 | self, |
| 1659 | self.pg1.sw_if_index, |
| 1660 | self.pg1.remote_hosts[1].mac, |
| 1661 | self.pg1.remote_hosts[1].ip4, |
| 1662 | ) |
Neale Ranns | 59ae61e | 2018-06-07 18:09:49 -0700 | [diff] [blame] | 1663 | arp.add_vpp_config() |
| 1664 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1665 | self.assertTrue( |
| 1666 | find_nbr( |
| 1667 | self, |
| 1668 | self.pg1.sw_if_index, |
| 1669 | self.pg1.remote_hosts[1].ip4, |
| 1670 | mac=self.pg1.remote_hosts[1].mac, |
| 1671 | ) |
| 1672 | ) |
Neale Ranns | 59ae61e | 2018-06-07 18:09:49 -0700 | [diff] [blame] | 1673 | |
| 1674 | # |
| 1675 | # Send a GARP (request) to swap the host 1's address to that of host 2 |
| 1676 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1677 | p1 = Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg1.remote_hosts[2].mac) / ARP( |
| 1678 | op="who-has", |
| 1679 | hwdst=self.pg1.local_mac, |
| 1680 | hwsrc=self.pg1.remote_hosts[2].mac, |
| 1681 | pdst=self.pg1.remote_hosts[1].ip4, |
| 1682 | psrc=self.pg1.remote_hosts[1].ip4, |
| 1683 | ) |
Neale Ranns | 59ae61e | 2018-06-07 18:09:49 -0700 | [diff] [blame] | 1684 | |
| 1685 | self.pg1.add_stream(p1) |
| 1686 | self.pg_enable_capture(self.pg_interfaces) |
| 1687 | self.pg_start() |
| 1688 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1689 | self.assertTrue( |
| 1690 | find_nbr( |
| 1691 | self, |
| 1692 | self.pg1.sw_if_index, |
| 1693 | self.pg1.remote_hosts[1].ip4, |
| 1694 | mac=self.pg1.remote_hosts[2].mac, |
| 1695 | ) |
| 1696 | ) |
Neale Ranns | fd2417b | 2021-07-16 14:00:16 +0000 | [diff] [blame] | 1697 | self.assert_equal(self.get_arp_rx_garp(self.pg1), 1) |
Neale Ranns | 59ae61e | 2018-06-07 18:09:49 -0700 | [diff] [blame] | 1698 | |
| 1699 | # |
| 1700 | # Send a GARP (reply) to swap the host 1's address to that of host 3 |
| 1701 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1702 | p1 = Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg1.remote_hosts[3].mac) / ARP( |
| 1703 | op="is-at", |
| 1704 | hwdst=self.pg1.local_mac, |
| 1705 | hwsrc=self.pg1.remote_hosts[3].mac, |
| 1706 | pdst=self.pg1.remote_hosts[1].ip4, |
| 1707 | psrc=self.pg1.remote_hosts[1].ip4, |
| 1708 | ) |
Neale Ranns | 59ae61e | 2018-06-07 18:09:49 -0700 | [diff] [blame] | 1709 | |
| 1710 | self.pg1.add_stream(p1) |
| 1711 | self.pg_enable_capture(self.pg_interfaces) |
| 1712 | self.pg_start() |
| 1713 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1714 | self.assertTrue( |
| 1715 | find_nbr( |
| 1716 | self, |
| 1717 | self.pg1.sw_if_index, |
| 1718 | self.pg1.remote_hosts[1].ip4, |
| 1719 | mac=self.pg1.remote_hosts[3].mac, |
| 1720 | ) |
| 1721 | ) |
Neale Ranns | fd2417b | 2021-07-16 14:00:16 +0000 | [diff] [blame] | 1722 | self.assert_equal(self.get_arp_rx_garp(self.pg1), 2) |
Neale Ranns | 59ae61e | 2018-06-07 18:09:49 -0700 | [diff] [blame] | 1723 | |
| 1724 | # |
Paul Vinciguerra | 8feeaff | 2019-03-27 11:25:48 -0700 | [diff] [blame] | 1725 | # GARPs (request nor replies) for host we don't know yet |
Neale Ranns | 59ae61e | 2018-06-07 18:09:49 -0700 | [diff] [blame] | 1726 | # don't result in new neighbour entries |
| 1727 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1728 | p1 = Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg1.remote_hosts[3].mac) / ARP( |
| 1729 | op="who-has", |
| 1730 | hwdst=self.pg1.local_mac, |
| 1731 | hwsrc=self.pg1.remote_hosts[3].mac, |
| 1732 | pdst=self.pg1.remote_hosts[2].ip4, |
| 1733 | psrc=self.pg1.remote_hosts[2].ip4, |
| 1734 | ) |
Neale Ranns | 59ae61e | 2018-06-07 18:09:49 -0700 | [diff] [blame] | 1735 | |
| 1736 | self.pg1.add_stream(p1) |
| 1737 | self.pg_enable_capture(self.pg_interfaces) |
| 1738 | self.pg_start() |
| 1739 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1740 | self.assertFalse( |
| 1741 | find_nbr(self, self.pg1.sw_if_index, self.pg1.remote_hosts[2].ip4) |
| 1742 | ) |
Neale Ranns | 59ae61e | 2018-06-07 18:09:49 -0700 | [diff] [blame] | 1743 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1744 | p1 = Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg1.remote_hosts[3].mac) / ARP( |
| 1745 | op="is-at", |
| 1746 | hwdst=self.pg1.local_mac, |
| 1747 | hwsrc=self.pg1.remote_hosts[3].mac, |
| 1748 | pdst=self.pg1.remote_hosts[2].ip4, |
| 1749 | psrc=self.pg1.remote_hosts[2].ip4, |
| 1750 | ) |
Neale Ranns | 59ae61e | 2018-06-07 18:09:49 -0700 | [diff] [blame] | 1751 | |
| 1752 | self.pg1.add_stream(p1) |
| 1753 | self.pg_enable_capture(self.pg_interfaces) |
| 1754 | self.pg_start() |
| 1755 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1756 | self.assertFalse( |
| 1757 | find_nbr(self, self.pg1.sw_if_index, self.pg1.remote_hosts[2].ip4) |
| 1758 | ) |
Neale Ranns | 59ae61e | 2018-06-07 18:09:49 -0700 | [diff] [blame] | 1759 | |
Neale Ranns | 22eefd7 | 2020-09-23 11:25:21 +0000 | [diff] [blame] | 1760 | # |
| 1761 | # IP address in different subnets are not learnt |
| 1762 | # |
| 1763 | self.pg2.configure_ipv4_neighbors() |
| 1764 | |
Benoît Ganne | 114b154 | 2022-09-12 17:56:16 +0200 | [diff] [blame] | 1765 | cntr = self.statistics.get_err_counter( |
| 1766 | "/err/arp-reply/l3_dst_address_not_local" |
| 1767 | ) |
| 1768 | |
Neale Ranns | 22eefd7 | 2020-09-23 11:25:21 +0000 | [diff] [blame] | 1769 | for op in ["is-at", "who-has"]: |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1770 | p1 = [ |
| 1771 | ( |
| 1772 | Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg2.remote_hosts[1].mac) |
| 1773 | / ARP( |
| 1774 | op=op, |
| 1775 | hwdst=self.pg2.local_mac, |
| 1776 | hwsrc=self.pg2.remote_hosts[1].mac, |
| 1777 | pdst=self.pg2.remote_hosts[1].ip4, |
| 1778 | psrc=self.pg2.remote_hosts[1].ip4, |
| 1779 | ) |
| 1780 | ), |
| 1781 | ( |
| 1782 | Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg2.remote_hosts[1].mac) |
| 1783 | / ARP( |
| 1784 | op=op, |
| 1785 | hwdst="ff:ff:ff:ff:ff:ff", |
| 1786 | hwsrc=self.pg2.remote_hosts[1].mac, |
| 1787 | pdst=self.pg2.remote_hosts[1].ip4, |
| 1788 | psrc=self.pg2.remote_hosts[1].ip4, |
| 1789 | ) |
| 1790 | ), |
| 1791 | ] |
Neale Ranns | 22eefd7 | 2020-09-23 11:25:21 +0000 | [diff] [blame] | 1792 | |
| 1793 | self.send_and_assert_no_replies(self.pg1, p1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1794 | self.assertFalse( |
| 1795 | find_nbr(self, self.pg1.sw_if_index, self.pg2.remote_hosts[1].ip4) |
| 1796 | ) |
Neale Ranns | 22eefd7 | 2020-09-23 11:25:21 +0000 | [diff] [blame] | 1797 | |
| 1798 | # they are all dropped because the subnet's don't match |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1799 | self.assertEqual( |
Benoît Ganne | 114b154 | 2022-09-12 17:56:16 +0200 | [diff] [blame] | 1800 | cntr + 4, |
Neale Ranns | 13a74ae | 2022-08-09 00:59:37 +0000 | [diff] [blame] | 1801 | self.statistics.get_err_counter("/err/arp-reply/l3_dst_address_not_local"), |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1802 | ) |
Neale Ranns | 22eefd7 | 2020-09-23 11:25:21 +0000 | [diff] [blame] | 1803 | |
Neale Ranns | 77f9162 | 2020-11-23 16:25:27 +0000 | [diff] [blame] | 1804 | def test_arp_incomplete2(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1805 | """Incomplete Entries""" |
Neale Ranns | c8352bc | 2018-08-29 10:23:58 -0700 | [diff] [blame] | 1806 | |
| 1807 | # |
Neale Ranns | cd35e53 | 2018-08-31 02:51:45 -0700 | [diff] [blame] | 1808 | # ensure that we throttle the ARP and ND requests |
Neale Ranns | c8352bc | 2018-08-29 10:23:58 -0700 | [diff] [blame] | 1809 | # |
| 1810 | self.pg0.generate_remote_hosts(2) |
| 1811 | |
Neale Ranns | cd35e53 | 2018-08-31 02:51:45 -0700 | [diff] [blame] | 1812 | # |
| 1813 | # IPv4/ARP |
| 1814 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1815 | ip_10_0_0_1 = VppIpRoute( |
| 1816 | self, |
| 1817 | "10.0.0.1", |
| 1818 | 32, |
| 1819 | [VppRoutePath(self.pg0.remote_hosts[1].ip4, self.pg0.sw_if_index)], |
| 1820 | ) |
Neale Ranns | c8352bc | 2018-08-29 10:23:58 -0700 | [diff] [blame] | 1821 | ip_10_0_0_1.add_vpp_config() |
| 1822 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1823 | p1 = ( |
| 1824 | Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) |
| 1825 | / IP(src=self.pg1.remote_ip4, dst="10.0.0.1") |
| 1826 | / UDP(sport=1234, dport=1234) |
| 1827 | / Raw() |
| 1828 | ) |
Neale Ranns | c8352bc | 2018-08-29 10:23:58 -0700 | [diff] [blame] | 1829 | |
| 1830 | self.pg1.add_stream(p1 * 257) |
| 1831 | self.pg_enable_capture(self.pg_interfaces) |
| 1832 | self.pg_start() |
| 1833 | rx = self.pg0._get_capture(1) |
| 1834 | |
| 1835 | # |
| 1836 | # how many we get is going to be dependent on the time for packet |
| 1837 | # processing but it should be small |
| 1838 | # |
Paul Vinciguerra | 3d2df21 | 2018-11-24 23:19:53 -0800 | [diff] [blame] | 1839 | self.assertLess(len(rx), 64) |
Neale Ranns | c8352bc | 2018-08-29 10:23:58 -0700 | [diff] [blame] | 1840 | |
Neale Ranns | cd35e53 | 2018-08-31 02:51:45 -0700 | [diff] [blame] | 1841 | # |
| 1842 | # IPv6/ND |
| 1843 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1844 | ip_10_1 = VppIpRoute( |
| 1845 | self, |
| 1846 | "10::1", |
| 1847 | 128, |
| 1848 | [ |
| 1849 | VppRoutePath( |
| 1850 | self.pg0.remote_hosts[1].ip6, |
| 1851 | self.pg0.sw_if_index, |
| 1852 | proto=DpoProto.DPO_PROTO_IP6, |
| 1853 | ) |
| 1854 | ], |
| 1855 | ) |
Neale Ranns | cd35e53 | 2018-08-31 02:51:45 -0700 | [diff] [blame] | 1856 | ip_10_1.add_vpp_config() |
| 1857 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1858 | p1 = ( |
| 1859 | Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) |
| 1860 | / IPv6(src=self.pg1.remote_ip6, dst="10::1") |
| 1861 | / UDP(sport=1234, dport=1234) |
| 1862 | / Raw() |
| 1863 | ) |
Neale Ranns | cd35e53 | 2018-08-31 02:51:45 -0700 | [diff] [blame] | 1864 | |
| 1865 | self.pg1.add_stream(p1 * 257) |
| 1866 | self.pg_enable_capture(self.pg_interfaces) |
| 1867 | self.pg_start() |
| 1868 | rx = self.pg0._get_capture(1) |
| 1869 | |
| 1870 | # |
| 1871 | # how many we get is going to be dependent on the time for packet |
| 1872 | # processing but it should be small |
| 1873 | # |
Paul Vinciguerra | 3d2df21 | 2018-11-24 23:19:53 -0800 | [diff] [blame] | 1874 | self.assertLess(len(rx), 64) |
Neale Ranns | cd35e53 | 2018-08-31 02:51:45 -0700 | [diff] [blame] | 1875 | |
Neale Ranns | 7425f92 | 2019-01-23 00:36:16 -0800 | [diff] [blame] | 1876 | def test_arp_forus(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1877 | """ARP for for-us""" |
Neale Ranns | 7425f92 | 2019-01-23 00:36:16 -0800 | [diff] [blame] | 1878 | |
| 1879 | # |
| 1880 | # Test that VPP responds with ARP requests to addresses that |
| 1881 | # are connected and local routes. |
| 1882 | # Use one of the 'remote' addresses in the subnet as a local address |
Paul Vinciguerra | 8feeaff | 2019-03-27 11:25:48 -0700 | [diff] [blame] | 1883 | # The intention of this route is that it then acts like a secondary |
Neale Ranns | 7425f92 | 2019-01-23 00:36:16 -0800 | [diff] [blame] | 1884 | # address added to an interface |
| 1885 | # |
| 1886 | self.pg0.generate_remote_hosts(2) |
| 1887 | |
Neale Ranns | 097fa66 | 2018-05-01 05:17:55 -0700 | [diff] [blame] | 1888 | forus = VppIpRoute( |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1889 | self, |
| 1890 | self.pg0.remote_hosts[1].ip4, |
| 1891 | 32, |
| 1892 | [ |
| 1893 | VppRoutePath( |
| 1894 | "0.0.0.0", |
| 1895 | self.pg0.sw_if_index, |
| 1896 | type=FibPathType.FIB_PATH_TYPE_LOCAL, |
| 1897 | ) |
| 1898 | ], |
| 1899 | ) |
Neale Ranns | 7425f92 | 2019-01-23 00:36:16 -0800 | [diff] [blame] | 1900 | forus.add_vpp_config() |
| 1901 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1902 | p = Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) / ARP( |
| 1903 | op="who-has", |
| 1904 | hwdst=self.pg0.local_mac, |
| 1905 | hwsrc=self.pg0.remote_mac, |
| 1906 | pdst=self.pg0.remote_hosts[1].ip4, |
| 1907 | psrc=self.pg0.remote_ip4, |
| 1908 | ) |
Neale Ranns | 7425f92 | 2019-01-23 00:36:16 -0800 | [diff] [blame] | 1909 | |
| 1910 | rx = self.send_and_expect(self.pg0, [p], self.pg0) |
| 1911 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1912 | self.verify_arp_resp( |
| 1913 | rx[0], |
| 1914 | self.pg0.local_mac, |
| 1915 | self.pg0.remote_mac, |
| 1916 | self.pg0.remote_hosts[1].ip4, |
| 1917 | self.pg0.remote_ip4, |
| 1918 | ) |
Neale Ranns | 7425f92 | 2019-01-23 00:36:16 -0800 | [diff] [blame] | 1919 | |
Neale Ranns | fca3c6a | 2019-12-31 03:49:34 +0000 | [diff] [blame] | 1920 | def test_arp_table_swap(self): |
| 1921 | # |
| 1922 | # Generate some hosts on the LAN |
| 1923 | # |
| 1924 | N_NBRS = 4 |
| 1925 | self.pg1.generate_remote_hosts(N_NBRS) |
| 1926 | |
| 1927 | for n in range(N_NBRS): |
| 1928 | # a route thru each neighbour |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1929 | VppIpRoute( |
| 1930 | self, |
| 1931 | "10.0.0.%d" % n, |
| 1932 | 32, |
| 1933 | [VppRoutePath(self.pg1.remote_hosts[n].ip4, self.pg1.sw_if_index)], |
| 1934 | ).add_vpp_config() |
Neale Ranns | fca3c6a | 2019-12-31 03:49:34 +0000 | [diff] [blame] | 1935 | |
| 1936 | # resolve each neighbour |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1937 | p1 = Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / ARP( |
| 1938 | op="is-at", |
| 1939 | hwdst=self.pg1.local_mac, |
| 1940 | hwsrc="00:00:5e:00:01:09", |
| 1941 | pdst=self.pg1.local_ip4, |
| 1942 | psrc=self.pg1.remote_hosts[n].ip4, |
| 1943 | ) |
Neale Ranns | fca3c6a | 2019-12-31 03:49:34 +0000 | [diff] [blame] | 1944 | |
| 1945 | self.send_and_assert_no_replies(self.pg1, p1, "ARP reply") |
| 1946 | |
| 1947 | self.logger.info(self.vapi.cli("sh ip neighbors")) |
| 1948 | |
| 1949 | # |
| 1950 | # swap the table pg1 is in |
| 1951 | # |
| 1952 | table = VppIpTable(self, 100).add_vpp_config() |
| 1953 | |
| 1954 | self.pg1.unconfig_ip4() |
| 1955 | self.pg1.set_table_ip4(100) |
| 1956 | self.pg1.config_ip4() |
| 1957 | |
| 1958 | # |
| 1959 | # all neighbours are cleared |
| 1960 | # |
| 1961 | for n in range(N_NBRS): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1962 | self.assertFalse( |
| 1963 | find_nbr(self, self.pg1.sw_if_index, self.pg1.remote_hosts[n].ip4) |
| 1964 | ) |
Neale Ranns | fca3c6a | 2019-12-31 03:49:34 +0000 | [diff] [blame] | 1965 | |
| 1966 | # |
| 1967 | # packets to all neighbours generate ARP requests |
| 1968 | # |
| 1969 | for n in range(N_NBRS): |
| 1970 | # a route thru each neighbour |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1971 | VppIpRoute( |
| 1972 | self, |
| 1973 | "10.0.0.%d" % n, |
| 1974 | 32, |
| 1975 | [VppRoutePath(self.pg1.remote_hosts[n].ip4, self.pg1.sw_if_index)], |
| 1976 | table_id=100, |
| 1977 | ).add_vpp_config() |
Neale Ranns | fca3c6a | 2019-12-31 03:49:34 +0000 | [diff] [blame] | 1978 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1979 | p = ( |
| 1980 | Ether(src=self.pg1.remote_hosts[n].mac, dst=self.pg1.local_mac) |
| 1981 | / IP(src=self.pg1.remote_hosts[n].ip4, dst="10.0.0.%d" % n) |
| 1982 | / Raw(b"0x5" * 100) |
| 1983 | ) |
Neale Ranns | fca3c6a | 2019-12-31 03:49:34 +0000 | [diff] [blame] | 1984 | rxs = self.send_and_expect(self.pg1, [p], self.pg1) |
| 1985 | for rx in rxs: |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1986 | self.verify_arp_req( |
| 1987 | rx, |
| 1988 | self.pg1.local_mac, |
| 1989 | self.pg1.local_ip4, |
| 1990 | self.pg1.remote_hosts[n].ip4, |
| 1991 | ) |
Neale Ranns | fca3c6a | 2019-12-31 03:49:34 +0000 | [diff] [blame] | 1992 | |
| 1993 | self.pg1.unconfig_ip4() |
| 1994 | self.pg1.set_table_ip4(0) |
| 1995 | |
Neale Ranns | e2fe097 | 2020-11-26 08:37:27 +0000 | [diff] [blame] | 1996 | def test_glean_src_select(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1997 | """Multi Connecteds""" |
Neale Ranns | e2fe097 | 2020-11-26 08:37:27 +0000 | [diff] [blame] | 1998 | |
| 1999 | # |
| 2000 | # configure multiple connected subnets on an interface |
| 2001 | # and ensure that ARP requests for hosts on those subnets |
| 2002 | # pick up the correct source address |
| 2003 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2004 | conn1 = VppIpInterfaceAddress(self, self.pg1, "10.0.0.1", 24).add_vpp_config() |
| 2005 | conn2 = VppIpInterfaceAddress(self, self.pg1, "10.0.1.1", 24).add_vpp_config() |
Neale Ranns | e2fe097 | 2020-11-26 08:37:27 +0000 | [diff] [blame] | 2006 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2007 | p1 = ( |
| 2008 | Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) |
| 2009 | / IP(src=self.pg1.remote_ip4, dst="10.0.0.128") |
| 2010 | / Raw(b"0x5" * 100) |
| 2011 | ) |
Neale Ranns | e2fe097 | 2020-11-26 08:37:27 +0000 | [diff] [blame] | 2012 | |
| 2013 | rxs = self.send_and_expect(self.pg0, [p1], self.pg1) |
| 2014 | for rx in rxs: |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2015 | self.verify_arp_req(rx, self.pg1.local_mac, "10.0.0.1", "10.0.0.128") |
Neale Ranns | e2fe097 | 2020-11-26 08:37:27 +0000 | [diff] [blame] | 2016 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2017 | p2 = ( |
| 2018 | Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) |
| 2019 | / IP(src=self.pg1.remote_ip4, dst="10.0.1.128") |
| 2020 | / Raw(b"0x5" * 100) |
| 2021 | ) |
Neale Ranns | e2fe097 | 2020-11-26 08:37:27 +0000 | [diff] [blame] | 2022 | |
| 2023 | rxs = self.send_and_expect(self.pg0, [p2], self.pg1) |
| 2024 | for rx in rxs: |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2025 | self.verify_arp_req(rx, self.pg1.local_mac, "10.0.1.1", "10.0.1.128") |
Neale Ranns | e2fe097 | 2020-11-26 08:37:27 +0000 | [diff] [blame] | 2026 | |
| 2027 | # |
| 2028 | # add a local address in the same subnet |
| 2029 | # the source addresses are equivalent. VPP happens to |
| 2030 | # choose the last one that was added |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2031 | conn3 = VppIpInterfaceAddress(self, self.pg1, "10.0.1.2", 24).add_vpp_config() |
Neale Ranns | e2fe097 | 2020-11-26 08:37:27 +0000 | [diff] [blame] | 2032 | |
| 2033 | rxs = self.send_and_expect(self.pg0, [p2], self.pg1) |
| 2034 | for rx in rxs: |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2035 | self.verify_arp_req(rx, self.pg1.local_mac, "10.0.1.2", "10.0.1.128") |
Neale Ranns | e2fe097 | 2020-11-26 08:37:27 +0000 | [diff] [blame] | 2036 | |
| 2037 | # |
| 2038 | # remove |
| 2039 | # |
| 2040 | conn3.remove_vpp_config() |
| 2041 | rxs = self.send_and_expect(self.pg0, [p2], self.pg1) |
| 2042 | for rx in rxs: |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2043 | self.verify_arp_req(rx, self.pg1.local_mac, "10.0.1.1", "10.0.1.128") |
Neale Ranns | e2fe097 | 2020-11-26 08:37:27 +0000 | [diff] [blame] | 2044 | |
| 2045 | # |
| 2046 | # add back, this time remove the first one |
| 2047 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2048 | conn3 = VppIpInterfaceAddress(self, self.pg1, "10.0.1.2", 24).add_vpp_config() |
Neale Ranns | e2fe097 | 2020-11-26 08:37:27 +0000 | [diff] [blame] | 2049 | |
| 2050 | rxs = self.send_and_expect(self.pg0, [p2], self.pg1) |
| 2051 | for rx in rxs: |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2052 | self.verify_arp_req(rx, self.pg1.local_mac, "10.0.1.2", "10.0.1.128") |
Neale Ranns | e2fe097 | 2020-11-26 08:37:27 +0000 | [diff] [blame] | 2053 | |
| 2054 | conn1.remove_vpp_config() |
| 2055 | rxs = self.send_and_expect(self.pg0, [p2], self.pg1) |
| 2056 | for rx in rxs: |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2057 | self.verify_arp_req(rx, self.pg1.local_mac, "10.0.1.2", "10.0.1.128") |
Neale Ranns | e2fe097 | 2020-11-26 08:37:27 +0000 | [diff] [blame] | 2058 | |
Neale Ranns | 66edaf2 | 2021-07-09 13:03:52 +0000 | [diff] [blame] | 2059 | # apply a connected prefix to an interface in a different table |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2060 | VppIpRoute( |
| 2061 | self, |
| 2062 | "10.0.1.0", |
| 2063 | 24, |
| 2064 | [VppRoutePath("0.0.0.0", self.pg1.sw_if_index)], |
| 2065 | table_id=1, |
| 2066 | ).add_vpp_config() |
Neale Ranns | 66edaf2 | 2021-07-09 13:03:52 +0000 | [diff] [blame] | 2067 | |
| 2068 | rxs = self.send_and_expect(self.pg3, [p2], self.pg1) |
| 2069 | for rx in rxs: |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2070 | self.verify_arp_req(rx, self.pg1.local_mac, "10.0.1.2", "10.0.1.128") |
Neale Ranns | 66edaf2 | 2021-07-09 13:03:52 +0000 | [diff] [blame] | 2071 | |
Neale Ranns | e2fe097 | 2020-11-26 08:37:27 +0000 | [diff] [blame] | 2072 | # cleanup |
| 2073 | conn3.remove_vpp_config() |
| 2074 | conn2.remove_vpp_config() |
| 2075 | |
Neale Ranns | dcd6d62 | 2017-05-26 02:59:16 -0700 | [diff] [blame] | 2076 | |
Andrew Yourtchenko | 8dc0d48 | 2021-01-29 13:17:19 +0000 | [diff] [blame] | 2077 | @tag_fixme_vpp_workers |
Neale Ranns | 1426039 | 2018-09-28 05:00:57 -0700 | [diff] [blame] | 2078 | class NeighborStatsTestCase(VppTestCase): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2079 | """ARP/ND Counters""" |
Neale Ranns | 1426039 | 2018-09-28 05:00:57 -0700 | [diff] [blame] | 2080 | |
Paul Vinciguerra | 7f9b7f9 | 2019-03-12 19:23:27 -0700 | [diff] [blame] | 2081 | @classmethod |
| 2082 | def setUpClass(cls): |
| 2083 | super(NeighborStatsTestCase, cls).setUpClass() |
| 2084 | |
| 2085 | @classmethod |
| 2086 | def tearDownClass(cls): |
| 2087 | super(NeighborStatsTestCase, cls).tearDownClass() |
| 2088 | |
Neale Ranns | 1426039 | 2018-09-28 05:00:57 -0700 | [diff] [blame] | 2089 | def setUp(self): |
| 2090 | super(NeighborStatsTestCase, self).setUp() |
| 2091 | |
| 2092 | self.create_pg_interfaces(range(2)) |
| 2093 | |
| 2094 | # pg0 configured with ip4 and 6 addresses used for input |
| 2095 | # pg1 configured with ip4 and 6 addresses used for output |
| 2096 | # pg2 is unnumbered to pg0 |
| 2097 | for i in self.pg_interfaces: |
| 2098 | i.admin_up() |
| 2099 | i.config_ip4() |
| 2100 | i.config_ip6() |
| 2101 | i.resolve_arp() |
| 2102 | i.resolve_ndp() |
| 2103 | |
| 2104 | def tearDown(self): |
| 2105 | super(NeighborStatsTestCase, self).tearDown() |
| 2106 | |
| 2107 | for i in self.pg_interfaces: |
| 2108 | i.unconfig_ip4() |
| 2109 | i.unconfig_ip6() |
| 2110 | i.admin_down() |
| 2111 | |
| 2112 | def test_arp_stats(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2113 | """ARP Counters""" |
Neale Ranns | 1426039 | 2018-09-28 05:00:57 -0700 | [diff] [blame] | 2114 | |
| 2115 | self.vapi.cli("adj counters enable") |
| 2116 | self.pg1.generate_remote_hosts(2) |
| 2117 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2118 | arp1 = VppNeighbor( |
| 2119 | self, |
| 2120 | self.pg1.sw_if_index, |
| 2121 | self.pg1.remote_hosts[0].mac, |
| 2122 | self.pg1.remote_hosts[0].ip4, |
| 2123 | ) |
Neale Ranns | 1426039 | 2018-09-28 05:00:57 -0700 | [diff] [blame] | 2124 | arp1.add_vpp_config() |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2125 | arp2 = VppNeighbor( |
| 2126 | self, |
| 2127 | self.pg1.sw_if_index, |
| 2128 | self.pg1.remote_hosts[1].mac, |
| 2129 | self.pg1.remote_hosts[1].ip4, |
| 2130 | ) |
Neale Ranns | 1426039 | 2018-09-28 05:00:57 -0700 | [diff] [blame] | 2131 | arp2.add_vpp_config() |
| 2132 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2133 | p1 = ( |
| 2134 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 2135 | / IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_hosts[0].ip4) |
| 2136 | / UDP(sport=1234, dport=1234) |
| 2137 | / Raw() |
| 2138 | ) |
| 2139 | p2 = ( |
| 2140 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 2141 | / IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_hosts[1].ip4) |
| 2142 | / UDP(sport=1234, dport=1234) |
| 2143 | / Raw() |
| 2144 | ) |
Neale Ranns | 1426039 | 2018-09-28 05:00:57 -0700 | [diff] [blame] | 2145 | |
Paul Vinciguerra | 4271c97 | 2019-05-14 13:25:49 -0400 | [diff] [blame] | 2146 | rx = self.send_and_expect(self.pg0, p1 * NUM_PKTS, self.pg1) |
| 2147 | rx = self.send_and_expect(self.pg0, p2 * NUM_PKTS, self.pg1) |
Neale Ranns | 1426039 | 2018-09-28 05:00:57 -0700 | [diff] [blame] | 2148 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2149 | self.assertEqual(NUM_PKTS, arp1.get_stats()["packets"]) |
| 2150 | self.assertEqual(NUM_PKTS, arp2.get_stats()["packets"]) |
Neale Ranns | 1426039 | 2018-09-28 05:00:57 -0700 | [diff] [blame] | 2151 | |
Paul Vinciguerra | 4271c97 | 2019-05-14 13:25:49 -0400 | [diff] [blame] | 2152 | rx = self.send_and_expect(self.pg0, p1 * NUM_PKTS, self.pg1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2153 | self.assertEqual(NUM_PKTS * 2, arp1.get_stats()["packets"]) |
Neale Ranns | 1426039 | 2018-09-28 05:00:57 -0700 | [diff] [blame] | 2154 | |
| 2155 | def test_nd_stats(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2156 | """ND Counters""" |
Neale Ranns | 1426039 | 2018-09-28 05:00:57 -0700 | [diff] [blame] | 2157 | |
| 2158 | self.vapi.cli("adj counters enable") |
| 2159 | self.pg0.generate_remote_hosts(3) |
| 2160 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2161 | nd1 = VppNeighbor( |
| 2162 | self, |
| 2163 | self.pg0.sw_if_index, |
| 2164 | self.pg0.remote_hosts[1].mac, |
| 2165 | self.pg0.remote_hosts[1].ip6, |
| 2166 | ) |
Neale Ranns | 1426039 | 2018-09-28 05:00:57 -0700 | [diff] [blame] | 2167 | nd1.add_vpp_config() |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2168 | nd2 = VppNeighbor( |
| 2169 | self, |
| 2170 | self.pg0.sw_if_index, |
| 2171 | self.pg0.remote_hosts[2].mac, |
| 2172 | self.pg0.remote_hosts[2].ip6, |
| 2173 | ) |
Neale Ranns | 1426039 | 2018-09-28 05:00:57 -0700 | [diff] [blame] | 2174 | nd2.add_vpp_config() |
| 2175 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2176 | p1 = ( |
| 2177 | Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) |
| 2178 | / IPv6(src=self.pg1.remote_ip6, dst=self.pg0.remote_hosts[1].ip6) |
| 2179 | / UDP(sport=1234, dport=1234) |
| 2180 | / Raw() |
| 2181 | ) |
| 2182 | p2 = ( |
| 2183 | Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) |
| 2184 | / IPv6(src=self.pg1.remote_ip6, dst=self.pg0.remote_hosts[2].ip6) |
| 2185 | / UDP(sport=1234, dport=1234) |
| 2186 | / Raw() |
| 2187 | ) |
Neale Ranns | 1426039 | 2018-09-28 05:00:57 -0700 | [diff] [blame] | 2188 | |
| 2189 | rx = self.send_and_expect(self.pg1, p1 * 16, self.pg0) |
| 2190 | rx = self.send_and_expect(self.pg1, p2 * 16, self.pg0) |
| 2191 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2192 | self.assertEqual(16, nd1.get_stats()["packets"]) |
| 2193 | self.assertEqual(16, nd2.get_stats()["packets"]) |
Neale Ranns | 1426039 | 2018-09-28 05:00:57 -0700 | [diff] [blame] | 2194 | |
Paul Vinciguerra | 4271c97 | 2019-05-14 13:25:49 -0400 | [diff] [blame] | 2195 | rx = self.send_and_expect(self.pg1, p1 * NUM_PKTS, self.pg0) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2196 | self.assertEqual(NUM_PKTS + 16, nd1.get_stats()["packets"]) |
Neale Ranns | 1426039 | 2018-09-28 05:00:57 -0700 | [diff] [blame] | 2197 | |
| 2198 | |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 2199 | class NeighborAgeTestCase(VppTestCase): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2200 | """ARP/ND Aging""" |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 2201 | |
| 2202 | @classmethod |
| 2203 | def setUpClass(cls): |
| 2204 | super(NeighborAgeTestCase, cls).setUpClass() |
| 2205 | |
| 2206 | @classmethod |
| 2207 | def tearDownClass(cls): |
| 2208 | super(NeighborAgeTestCase, cls).tearDownClass() |
| 2209 | |
| 2210 | def setUp(self): |
| 2211 | super(NeighborAgeTestCase, self).setUp() |
| 2212 | |
| 2213 | self.create_pg_interfaces(range(1)) |
| 2214 | |
| 2215 | # pg0 configured with ip4 and 6 addresses used for input |
| 2216 | # pg1 configured with ip4 and 6 addresses used for output |
| 2217 | # pg2 is unnumbered to pg0 |
| 2218 | for i in self.pg_interfaces: |
| 2219 | i.admin_up() |
| 2220 | i.config_ip4() |
| 2221 | i.config_ip6() |
| 2222 | i.resolve_arp() |
| 2223 | i.resolve_ndp() |
| 2224 | |
| 2225 | def tearDown(self): |
| 2226 | super(NeighborAgeTestCase, self).tearDown() |
| 2227 | |
| 2228 | for i in self.pg_interfaces: |
| 2229 | i.unconfig_ip4() |
| 2230 | i.unconfig_ip6() |
| 2231 | i.admin_down() |
| 2232 | |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 2233 | def verify_arp_req(self, rx, smac, sip, dip): |
| 2234 | ether = rx[Ether] |
| 2235 | self.assertEqual(ether.dst, "ff:ff:ff:ff:ff:ff") |
| 2236 | self.assertEqual(ether.src, smac) |
| 2237 | |
| 2238 | arp = rx[ARP] |
| 2239 | self.assertEqual(arp.hwtype, 1) |
| 2240 | self.assertEqual(arp.ptype, 0x800) |
| 2241 | self.assertEqual(arp.hwlen, 6) |
| 2242 | self.assertEqual(arp.plen, 4) |
| 2243 | self.assertEqual(arp.op, arp_opts["who-has"]) |
| 2244 | self.assertEqual(arp.hwsrc, smac) |
| 2245 | self.assertEqual(arp.hwdst, "00:00:00:00:00:00") |
| 2246 | self.assertEqual(arp.psrc, sip) |
| 2247 | self.assertEqual(arp.pdst, dip) |
| 2248 | |
| 2249 | def test_age(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2250 | """Aging/Recycle""" |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 2251 | |
| 2252 | self.vapi.cli("set logging unthrottle 0") |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2253 | self.vapi.cli("set logging size %d" % 0xFFFF) |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 2254 | |
| 2255 | self.pg0.generate_remote_hosts(201) |
| 2256 | |
| 2257 | vaf = VppEnum.vl_api_address_family_t |
| 2258 | |
| 2259 | # |
| 2260 | # start listening on all interfaces |
| 2261 | # |
| 2262 | self.pg_enable_capture(self.pg_interfaces) |
| 2263 | |
| 2264 | # |
| 2265 | # Set the neighbor configuration: |
| 2266 | # limi = 200 |
Vladimir Isaev | 1284f8c | 2020-02-18 15:26:12 +0300 | [diff] [blame] | 2267 | # age = 0 seconds |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 2268 | # recycle = false |
| 2269 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2270 | self.vapi.ip_neighbor_config( |
| 2271 | af=vaf.ADDRESS_IP4, max_number=200, max_age=0, recycle=False |
| 2272 | ) |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 2273 | |
| 2274 | self.vapi.cli("sh ip neighbor-config") |
| 2275 | |
| 2276 | # add the 198 neighbours that should pass (-1 for one created in setup) |
| 2277 | for ii in range(200): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2278 | VppNeighbor( |
| 2279 | self, |
| 2280 | self.pg0.sw_if_index, |
| 2281 | self.pg0.remote_hosts[ii].mac, |
| 2282 | self.pg0.remote_hosts[ii].ip4, |
| 2283 | ).add_vpp_config() |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 2284 | |
| 2285 | # one more neighbor over the limit should fail |
| 2286 | with self.vapi.assert_negative_api_retval(): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2287 | VppNeighbor( |
| 2288 | self, |
| 2289 | self.pg0.sw_if_index, |
| 2290 | self.pg0.remote_hosts[200].mac, |
| 2291 | self.pg0.remote_hosts[200].ip4, |
| 2292 | ).add_vpp_config() |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 2293 | |
| 2294 | # |
| 2295 | # change the config to allow recycling the old neighbors |
| 2296 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2297 | self.vapi.ip_neighbor_config( |
| 2298 | af=vaf.ADDRESS_IP4, max_number=200, max_age=0, recycle=True |
| 2299 | ) |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 2300 | |
| 2301 | # now new additions are allowed |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2302 | VppNeighbor( |
| 2303 | self, |
| 2304 | self.pg0.sw_if_index, |
| 2305 | self.pg0.remote_hosts[200].mac, |
| 2306 | self.pg0.remote_hosts[200].ip4, |
| 2307 | ).add_vpp_config() |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 2308 | |
| 2309 | # add the first neighbor we configured has been re-used |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2310 | self.assertFalse( |
| 2311 | find_nbr(self, self.pg0.sw_if_index, self.pg0.remote_hosts[0].ip4) |
| 2312 | ) |
| 2313 | self.assertTrue( |
| 2314 | find_nbr(self, self.pg0.sw_if_index, self.pg0.remote_hosts[200].ip4) |
| 2315 | ) |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 2316 | |
| 2317 | # |
| 2318 | # change the config to age old neighbors |
| 2319 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2320 | self.vapi.ip_neighbor_config( |
| 2321 | af=vaf.ADDRESS_IP4, max_number=200, max_age=2, recycle=True |
| 2322 | ) |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 2323 | |
| 2324 | self.vapi.cli("sh ip4 neighbor-sorted") |
| 2325 | |
Benoît Ganne | 56eccdb | 2021-08-20 09:18:31 +0200 | [diff] [blame] | 2326 | # age out neighbors |
| 2327 | self.virtual_sleep(3) |
| 2328 | |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 2329 | # |
| 2330 | # expect probes from all these ARP entries as they age |
| 2331 | # 3 probes for each neighbor 3*200 = 600 |
Benoît Ganne | 56eccdb | 2021-08-20 09:18:31 +0200 | [diff] [blame] | 2332 | rxs = self.pg0.get_capture(600, timeout=2) |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 2333 | |
| 2334 | for ii in range(3): |
| 2335 | for jj in range(200): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2336 | rx = rxs[ii * 200 + jj] |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 2337 | # rx.show() |
| 2338 | |
| 2339 | # |
| 2340 | # 3 probes sent then 1 more second to see if a reply comes, before |
| 2341 | # they age out |
| 2342 | # |
Benoît Ganne | 56eccdb | 2021-08-20 09:18:31 +0200 | [diff] [blame] | 2343 | self.virtual_sleep(1) |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 2344 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2345 | self.assertFalse( |
| 2346 | self.vapi.ip_neighbor_dump(sw_if_index=0xFFFFFFFF, af=vaf.ADDRESS_IP4) |
| 2347 | ) |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 2348 | |
| 2349 | # |
Vladimir Isaev | 1284f8c | 2020-02-18 15:26:12 +0300 | [diff] [blame] | 2350 | # load up some neighbours again with 2s aging enabled |
| 2351 | # they should be removed after 10s (2s age + 4s for probes + gap) |
Neale Ranns | 4ac36bc | 2020-11-20 13:05:59 +0000 | [diff] [blame] | 2352 | # check for the add and remove events |
Vladimir Isaev | 1284f8c | 2020-02-18 15:26:12 +0300 | [diff] [blame] | 2353 | # |
Neale Ranns | 4ac36bc | 2020-11-20 13:05:59 +0000 | [diff] [blame] | 2354 | enum = VppEnum.vl_api_ip_neighbor_event_flags_t |
| 2355 | |
| 2356 | self.vapi.want_ip_neighbor_events_v2(enable=1) |
Vladimir Isaev | 1284f8c | 2020-02-18 15:26:12 +0300 | [diff] [blame] | 2357 | for ii in range(10): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2358 | VppNeighbor( |
| 2359 | self, |
| 2360 | self.pg0.sw_if_index, |
| 2361 | self.pg0.remote_hosts[ii].mac, |
| 2362 | self.pg0.remote_hosts[ii].ip4, |
| 2363 | ).add_vpp_config() |
Neale Ranns | 4ac36bc | 2020-11-20 13:05:59 +0000 | [diff] [blame] | 2364 | |
| 2365 | e = self.vapi.wait_for_event(1, "ip_neighbor_event_v2") |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2366 | self.assertEqual(e.flags, enum.IP_NEIGHBOR_API_EVENT_FLAG_ADDED) |
| 2367 | self.assertEqual(str(e.neighbor.ip_address), self.pg0.remote_hosts[ii].ip4) |
| 2368 | self.assertEqual(e.neighbor.mac_address, self.pg0.remote_hosts[ii].mac) |
Neale Ranns | 4ac36bc | 2020-11-20 13:05:59 +0000 | [diff] [blame] | 2369 | |
Benoît Ganne | 56eccdb | 2021-08-20 09:18:31 +0200 | [diff] [blame] | 2370 | self.virtual_sleep(10) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2371 | self.assertFalse( |
| 2372 | self.vapi.ip_neighbor_dump(sw_if_index=0xFFFFFFFF, af=vaf.ADDRESS_IP4) |
| 2373 | ) |
Vladimir Isaev | 1284f8c | 2020-02-18 15:26:12 +0300 | [diff] [blame] | 2374 | |
Neale Ranns | 4ac36bc | 2020-11-20 13:05:59 +0000 | [diff] [blame] | 2375 | evs = [] |
| 2376 | for ii in range(10): |
| 2377 | e = self.vapi.wait_for_event(1, "ip_neighbor_event_v2") |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2378 | self.assertEqual(e.flags, enum.IP_NEIGHBOR_API_EVENT_FLAG_REMOVED) |
Neale Ranns | 4ac36bc | 2020-11-20 13:05:59 +0000 | [diff] [blame] | 2379 | evs.append(e) |
| 2380 | |
| 2381 | # check we got the correct mac/ip pairs - done separately |
| 2382 | # because we don't care about the order the remove notifications |
| 2383 | # arrive |
| 2384 | for ii in range(10): |
| 2385 | found = False |
| 2386 | mac = self.pg0.remote_hosts[ii].mac |
| 2387 | ip = self.pg0.remote_hosts[ii].ip4 |
| 2388 | |
| 2389 | for e in evs: |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2390 | if e.neighbor.mac_address == mac and str(e.neighbor.ip_address) == ip: |
Neale Ranns | 4ac36bc | 2020-11-20 13:05:59 +0000 | [diff] [blame] | 2391 | found = True |
| 2392 | break |
| 2393 | self.assertTrue(found) |
| 2394 | |
Vladimir Isaev | 1284f8c | 2020-02-18 15:26:12 +0300 | [diff] [blame] | 2395 | # |
| 2396 | # check if we can set age and recycle with empty neighbor list |
| 2397 | # |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2398 | self.vapi.ip_neighbor_config( |
| 2399 | af=vaf.ADDRESS_IP4, max_number=200, max_age=1000, recycle=True |
| 2400 | ) |
Vladimir Isaev | 1284f8c | 2020-02-18 15:26:12 +0300 | [diff] [blame] | 2401 | |
| 2402 | # |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 2403 | # load up some neighbours again, then disable the aging |
| 2404 | # they should still be there in 10 seconds time |
| 2405 | # |
| 2406 | for ii in range(10): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2407 | VppNeighbor( |
| 2408 | self, |
| 2409 | self.pg0.sw_if_index, |
| 2410 | self.pg0.remote_hosts[ii].mac, |
| 2411 | self.pg0.remote_hosts[ii].ip4, |
| 2412 | ).add_vpp_config() |
| 2413 | self.vapi.ip_neighbor_config( |
| 2414 | af=vaf.ADDRESS_IP4, max_number=200, max_age=0, recycle=False |
| 2415 | ) |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 2416 | |
Benoît Ganne | 56eccdb | 2021-08-20 09:18:31 +0200 | [diff] [blame] | 2417 | self.virtual_sleep(10) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2418 | self.assertTrue( |
| 2419 | find_nbr(self, self.pg0.sw_if_index, self.pg0.remote_hosts[0].ip4) |
| 2420 | ) |
Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 2421 | |
| 2422 | |
Neale Ranns | c87fbb4 | 2020-04-02 17:08:28 +0000 | [diff] [blame] | 2423 | class NeighborReplaceTestCase(VppTestCase): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2424 | """ARP/ND Replacement""" |
Neale Ranns | c87fbb4 | 2020-04-02 17:08:28 +0000 | [diff] [blame] | 2425 | |
| 2426 | @classmethod |
| 2427 | def setUpClass(cls): |
| 2428 | super(NeighborReplaceTestCase, cls).setUpClass() |
| 2429 | |
| 2430 | @classmethod |
| 2431 | def tearDownClass(cls): |
| 2432 | super(NeighborReplaceTestCase, cls).tearDownClass() |
| 2433 | |
| 2434 | def setUp(self): |
| 2435 | super(NeighborReplaceTestCase, self).setUp() |
| 2436 | |
| 2437 | self.create_pg_interfaces(range(4)) |
| 2438 | |
| 2439 | # pg0 configured with ip4 and 6 addresses used for input |
| 2440 | # pg1 configured with ip4 and 6 addresses used for output |
| 2441 | # pg2 is unnumbered to pg0 |
| 2442 | for i in self.pg_interfaces: |
| 2443 | i.admin_up() |
| 2444 | i.config_ip4() |
| 2445 | i.config_ip6() |
| 2446 | i.resolve_arp() |
| 2447 | i.resolve_ndp() |
| 2448 | |
| 2449 | def tearDown(self): |
| 2450 | super(NeighborReplaceTestCase, self).tearDown() |
| 2451 | |
| 2452 | for i in self.pg_interfaces: |
| 2453 | i.unconfig_ip4() |
| 2454 | i.unconfig_ip6() |
| 2455 | i.admin_down() |
| 2456 | |
| 2457 | def test_replace(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2458 | """replace""" |
Neale Ranns | c87fbb4 | 2020-04-02 17:08:28 +0000 | [diff] [blame] | 2459 | |
| 2460 | N_HOSTS = 16 |
| 2461 | |
| 2462 | for i in self.pg_interfaces: |
| 2463 | i.generate_remote_hosts(N_HOSTS) |
| 2464 | i.configure_ipv4_neighbors() |
| 2465 | i.configure_ipv6_neighbors() |
| 2466 | |
| 2467 | # replace them all |
| 2468 | self.vapi.ip_neighbor_replace_begin() |
| 2469 | self.vapi.ip_neighbor_replace_end() |
| 2470 | |
| 2471 | for i in self.pg_interfaces: |
| 2472 | for h in range(N_HOSTS): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2473 | self.assertFalse( |
| 2474 | find_nbr(self, self.pg0.sw_if_index, self.pg0.remote_hosts[h].ip4) |
| 2475 | ) |
| 2476 | self.assertFalse( |
| 2477 | find_nbr(self, self.pg0.sw_if_index, self.pg0.remote_hosts[h].ip6) |
| 2478 | ) |
Neale Ranns | c87fbb4 | 2020-04-02 17:08:28 +0000 | [diff] [blame] | 2479 | |
| 2480 | # |
| 2481 | # and them all back via the API |
| 2482 | # |
| 2483 | for i in self.pg_interfaces: |
| 2484 | for h in range(N_HOSTS): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2485 | VppNeighbor( |
| 2486 | self, i.sw_if_index, i.remote_hosts[h].mac, i.remote_hosts[h].ip4 |
| 2487 | ).add_vpp_config() |
| 2488 | VppNeighbor( |
| 2489 | self, i.sw_if_index, i.remote_hosts[h].mac, i.remote_hosts[h].ip6 |
| 2490 | ).add_vpp_config() |
Neale Ranns | c87fbb4 | 2020-04-02 17:08:28 +0000 | [diff] [blame] | 2491 | |
| 2492 | # |
| 2493 | # begin the replacement again, this time touch some |
| 2494 | # the neighbours on pg1 so they are not deleted |
| 2495 | # |
| 2496 | self.vapi.ip_neighbor_replace_begin() |
| 2497 | |
| 2498 | # update from the API all neighbours on pg1 |
| 2499 | for h in range(N_HOSTS): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2500 | VppNeighbor( |
| 2501 | self, |
| 2502 | self.pg1.sw_if_index, |
| 2503 | self.pg1.remote_hosts[h].mac, |
| 2504 | self.pg1.remote_hosts[h].ip4, |
| 2505 | ).add_vpp_config() |
| 2506 | VppNeighbor( |
| 2507 | self, |
| 2508 | self.pg1.sw_if_index, |
| 2509 | self.pg1.remote_hosts[h].mac, |
| 2510 | self.pg1.remote_hosts[h].ip6, |
| 2511 | ).add_vpp_config() |
Neale Ranns | c87fbb4 | 2020-04-02 17:08:28 +0000 | [diff] [blame] | 2512 | |
| 2513 | # update from the data-plane all neighbours on pg3 |
| 2514 | self.pg3.configure_ipv4_neighbors() |
| 2515 | self.pg3.configure_ipv6_neighbors() |
| 2516 | |
| 2517 | # complete the replacement |
| 2518 | self.logger.info(self.vapi.cli("sh ip neighbors")) |
| 2519 | self.vapi.ip_neighbor_replace_end() |
| 2520 | |
| 2521 | for i in self.pg_interfaces: |
| 2522 | if i == self.pg1 or i == self.pg3: |
| 2523 | # neighbours on pg1 and pg3 are still present |
| 2524 | for h in range(N_HOSTS): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2525 | self.assertTrue( |
| 2526 | find_nbr(self, i.sw_if_index, i.remote_hosts[h].ip4) |
| 2527 | ) |
| 2528 | self.assertTrue( |
| 2529 | find_nbr(self, i.sw_if_index, i.remote_hosts[h].ip6) |
| 2530 | ) |
Neale Ranns | c87fbb4 | 2020-04-02 17:08:28 +0000 | [diff] [blame] | 2531 | else: |
| 2532 | # all other neighbours are toast |
| 2533 | for h in range(N_HOSTS): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2534 | self.assertFalse( |
| 2535 | find_nbr(self, i.sw_if_index, i.remote_hosts[h].ip4) |
| 2536 | ) |
| 2537 | self.assertFalse( |
| 2538 | find_nbr(self, i.sw_if_index, i.remote_hosts[h].ip6) |
| 2539 | ) |
Neale Ranns | c87fbb4 | 2020-04-02 17:08:28 +0000 | [diff] [blame] | 2540 | |
| 2541 | |
Neale Ranns | 240dcb2 | 2020-04-23 09:04:59 +0000 | [diff] [blame] | 2542 | class NeighborFlush(VppTestCase): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2543 | """Neighbor Flush""" |
Neale Ranns | 240dcb2 | 2020-04-23 09:04:59 +0000 | [diff] [blame] | 2544 | |
| 2545 | @classmethod |
| 2546 | def setUpClass(cls): |
| 2547 | super(NeighborFlush, cls).setUpClass() |
| 2548 | |
| 2549 | @classmethod |
| 2550 | def tearDownClass(cls): |
| 2551 | super(NeighborFlush, cls).tearDownClass() |
| 2552 | |
| 2553 | def setUp(self): |
| 2554 | super(NeighborFlush, self).setUp() |
| 2555 | |
| 2556 | self.create_pg_interfaces(range(2)) |
| 2557 | |
| 2558 | for i in self.pg_interfaces: |
| 2559 | i.admin_up() |
| 2560 | i.config_ip4() |
| 2561 | i.config_ip6() |
| 2562 | i.resolve_arp() |
| 2563 | i.resolve_ndp() |
| 2564 | |
| 2565 | def tearDown(self): |
| 2566 | super(NeighborFlush, self).tearDown() |
| 2567 | |
| 2568 | for i in self.pg_interfaces: |
| 2569 | i.unconfig_ip4() |
| 2570 | i.unconfig_ip6() |
| 2571 | i.admin_down() |
| 2572 | |
| 2573 | def test_flush(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2574 | """Neighbour Flush""" |
Neale Ranns | 240dcb2 | 2020-04-23 09:04:59 +0000 | [diff] [blame] | 2575 | |
| 2576 | e = VppEnum |
| 2577 | nf = e.vl_api_ip_neighbor_flags_t |
| 2578 | af = e.vl_api_address_family_t |
| 2579 | N_HOSTS = 16 |
| 2580 | static = [False, True] |
| 2581 | self.pg0.generate_remote_hosts(N_HOSTS) |
| 2582 | self.pg1.generate_remote_hosts(N_HOSTS) |
| 2583 | |
| 2584 | for s in static: |
| 2585 | # a few v4 and v6 dynamic neoghbors |
| 2586 | for n in range(N_HOSTS): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2587 | VppNeighbor( |
| 2588 | self, |
| 2589 | self.pg0.sw_if_index, |
| 2590 | self.pg0.remote_hosts[n].mac, |
| 2591 | self.pg0.remote_hosts[n].ip4, |
| 2592 | is_static=s, |
| 2593 | ).add_vpp_config() |
| 2594 | VppNeighbor( |
| 2595 | self, |
| 2596 | self.pg1.sw_if_index, |
| 2597 | self.pg1.remote_hosts[n].mac, |
| 2598 | self.pg1.remote_hosts[n].ip6, |
| 2599 | is_static=s, |
| 2600 | ).add_vpp_config() |
Neale Ranns | 240dcb2 | 2020-04-23 09:04:59 +0000 | [diff] [blame] | 2601 | |
| 2602 | # flush the interfaces individually |
| 2603 | self.vapi.ip_neighbor_flush(af.ADDRESS_IP4, self.pg0.sw_if_index) |
| 2604 | |
| 2605 | # check we haven't flushed that which we shouldn't |
| 2606 | for n in range(N_HOSTS): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2607 | self.assertTrue( |
| 2608 | find_nbr( |
| 2609 | self, |
| 2610 | self.pg1.sw_if_index, |
| 2611 | self.pg1.remote_hosts[n].ip6, |
| 2612 | is_static=s, |
| 2613 | ) |
| 2614 | ) |
Neale Ranns | 240dcb2 | 2020-04-23 09:04:59 +0000 | [diff] [blame] | 2615 | |
| 2616 | self.vapi.ip_neighbor_flush(af.ADDRESS_IP6, self.pg1.sw_if_index) |
| 2617 | |
| 2618 | for n in range(N_HOSTS): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2619 | self.assertFalse( |
| 2620 | find_nbr(self, self.pg0.sw_if_index, self.pg0.remote_hosts[n].ip4) |
| 2621 | ) |
| 2622 | self.assertFalse( |
| 2623 | find_nbr(self, self.pg1.sw_if_index, self.pg1.remote_hosts[n].ip6) |
| 2624 | ) |
Neale Ranns | 240dcb2 | 2020-04-23 09:04:59 +0000 | [diff] [blame] | 2625 | |
| 2626 | # add the nieghbours back |
| 2627 | for n in range(N_HOSTS): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2628 | VppNeighbor( |
| 2629 | self, |
| 2630 | self.pg0.sw_if_index, |
| 2631 | self.pg0.remote_hosts[n].mac, |
| 2632 | self.pg0.remote_hosts[n].ip4, |
| 2633 | is_static=s, |
| 2634 | ).add_vpp_config() |
| 2635 | VppNeighbor( |
| 2636 | self, |
| 2637 | self.pg1.sw_if_index, |
| 2638 | self.pg1.remote_hosts[n].mac, |
| 2639 | self.pg1.remote_hosts[n].ip6, |
| 2640 | is_static=s, |
| 2641 | ).add_vpp_config() |
Neale Ranns | 240dcb2 | 2020-04-23 09:04:59 +0000 | [diff] [blame] | 2642 | |
| 2643 | self.logger.info(self.vapi.cli("sh ip neighbor")) |
| 2644 | |
| 2645 | # flush both interfaces at the same time |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2646 | self.vapi.ip_neighbor_flush(af.ADDRESS_IP6, 0xFFFFFFFF) |
Neale Ranns | 240dcb2 | 2020-04-23 09:04:59 +0000 | [diff] [blame] | 2647 | |
| 2648 | # check we haven't flushed that which we shouldn't |
| 2649 | for n in range(N_HOSTS): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2650 | self.assertTrue( |
| 2651 | find_nbr( |
| 2652 | self, |
| 2653 | self.pg0.sw_if_index, |
| 2654 | self.pg0.remote_hosts[n].ip4, |
| 2655 | is_static=s, |
| 2656 | ) |
| 2657 | ) |
Neale Ranns | 240dcb2 | 2020-04-23 09:04:59 +0000 | [diff] [blame] | 2658 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2659 | self.vapi.ip_neighbor_flush(af.ADDRESS_IP4, 0xFFFFFFFF) |
Neale Ranns | 240dcb2 | 2020-04-23 09:04:59 +0000 | [diff] [blame] | 2660 | |
| 2661 | for n in range(N_HOSTS): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2662 | self.assertFalse( |
| 2663 | find_nbr(self, self.pg0.sw_if_index, self.pg0.remote_hosts[n].ip4) |
| 2664 | ) |
| 2665 | self.assertFalse( |
| 2666 | find_nbr(self, self.pg1.sw_if_index, self.pg1.remote_hosts[n].ip6) |
| 2667 | ) |
Neale Ranns | 240dcb2 | 2020-04-23 09:04:59 +0000 | [diff] [blame] | 2668 | |
| 2669 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2670 | if __name__ == "__main__": |
Neale Ranns | 37be736 | 2017-02-21 17:30:26 -0800 | [diff] [blame] | 2671 | unittest.main(testRunner=VppTestRunner) |