test/test_sixrd.py

   1 #!/usr/bin/env python3
   2 """ 6RD RFC5969 functional tests """
   3
   4 import unittest
   5 from scapy.layers.inet import IP, UDP, Ether
   6 from scapy.layers.inet6 import IPv6
   7 from scapy.packet import Raw
   8 from framework import VppTestCase
   9 from asfframework import VppTestRunner
  10 from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpTable
  11
  12 """ Test6rd is a subclass of  VPPTestCase classes.
  13
  14 6RD tests.
  15
  16 """
  17
  18
  19 class Test6RD(VppTestCase):
  20     """6RD Test Case"""
  21
  22     @classmethod
  23     def setUpClass(cls):
  24         super(Test6RD, cls).setUpClass()
  25         cls.create_pg_interfaces(range(4))
  26         cls.interfaces = list(cls.pg_interfaces)
  27
  28     @classmethod
  29     def tearDownClass(cls):
  30         super(Test6RD, cls).tearDownClass()
  31
  32     def setUp(self):
  33         super(Test6RD, self).setUp()
  34         t4 = VppIpTable(self, 10)
  35         t6 = VppIpTable(self, 20, True)
  36
  37         t4.add_vpp_config()
  38         t6.add_vpp_config()
  39
  40         for n in range(4):
  41             i = self.pg_interfaces[n]
  42             i.admin_up()
  43             if n > 1:
  44                 i.set_table_ip4(10)
  45                 i.set_table_ip6(20)
  46             i.config_ip4()
  47             i.config_ip6()
  48             i.disable_ipv6_ra()
  49             i.resolve_arp()
  50             i.resolve_ndp()
  51
  52     def tearDown(self):
  53         for i in self.pg_interfaces:
  54             i.unconfig_ip4()
  55             i.unconfig_ip6()
  56             i.set_table_ip4(0)
  57             i.set_table_ip6(0)
  58             i.admin_down()
  59         super(Test6RD, self).tearDown()
  60
  61     def validate_6in4(self, rx, expected):
  62         if IP not in rx:
  63             self.fail()
  64         if IPv6 not in rx:
  65             self.fail()
  66
  67         self.assertEqual(rx[IP].src, expected[IP].src)
  68         self.assertEqual(rx[IP].dst, expected[IP].dst)
  69         self.assertEqual(rx[IP].proto, expected[IP].proto)
  70         self.assertEqual(rx[IPv6].src, expected[IPv6].src)
  71         self.assertEqual(rx[IPv6].dst, expected[IPv6].dst)
  72
  73     def validate_4in6(self, rx, expected):
  74         if IPv6 not in rx:
  75             self.fail()
  76         if IP in rx:
  77             self.fail()
  78
  79         self.assertEqual(rx[IPv6].src, expected[IPv6].src)
  80         self.assertEqual(rx[IPv6].dst, expected[IPv6].dst)
  81         self.assertEqual(rx[IPv6].nh, expected[IPv6].nh)
  82
  83     def payload(self, len):
  84         return "x" * len
  85
  86     def test_6rd_ip6_to_ip4(self):
  87         """ip6 -> ip4 (encap) 6rd test"""
  88         p_ether = Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
  89         p_ip6 = IPv6(src="1::1", dst="2002:AC10:0202::1", nh="UDP")
  90
  91         rv = self.vapi.ipip_6rd_add_tunnel(
  92             ip6_table_id=0,
  93             ip4_table_id=0,
  94             ip6_prefix="2002::/16",
  95             ip4_prefix="0.0.0.0/0",
  96             ip4_src=self.pg0.local_ip4,
  97             security_check=True,
  98         )
  99
 100         self.tunnel_index = rv.sw_if_index
 101
 102         self.vapi.cli("show ip6 fib")
 103         p_payload = UDP(sport=1234, dport=1234)
 104         p = p_ether / p_ip6 / p_payload
 105
 106         p_reply = (
 107             IP(src=self.pg0.local_ip4, dst=self.pg1.remote_ip4, proto="ipv6") / p_ip6
 108         )
 109
 110         rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
 111         for p in rx:
 112             self.validate_6in4(p, p_reply)
 113
 114         # MTU tests (default is 1480)
 115         plen = 1481 - 40 - 8
 116         p_ip6 = IPv6(src="1::1", dst="2002:AC10:0202::1")
 117         p_payload = UDP(sport=1234, dport=1234) / Raw(self.payload(plen))
 118         p = p_ether / p_ip6 / p_payload
 119
 120         p_reply = (
 121             IP(src=self.pg0.local_ip4, dst=self.pg1.remote_ip4, proto="ipv6") / p_ip6
 122         )
 123
 124         rx = self.send_and_assert_no_replies(self.pg0, p * 10)
 125         self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
 126
 127     def test_6rd_ip6_to_ip4_vrf(self):
 128         """ip6 -> ip4 (encap) 6rd VRF test"""
 129         p_ether = Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac)
 130         p_ip6 = IPv6(src="1::1", dst="2002:AC10:0402::1", nh="UDP")
 131
 132         rv = self.vapi.ipip_6rd_add_tunnel(
 133             ip6_table_id=20,
 134             ip4_table_id=10,
 135             ip6_prefix="2002::/16",
 136             ip4_prefix="0.0.0.0/0",
 137             ip4_src=self.pg2.local_ip4,
 138             security_check=True,
 139         )
 140         self.tunnel_index = rv.sw_if_index
 141
 142         self.vapi.cli("show ip6 fib")
 143         p_payload = UDP(sport=1234, dport=1234)
 144         p = p_ether / p_ip6 / p_payload
 145
 146         p_reply = (
 147             IP(src=self.pg2.local_ip4, dst=self.pg3.remote_ip4, proto="ipv6") / p_ip6
 148         )
 149
 150         rx = self.send_and_expect(self.pg2, p * 10, self.pg3)
 151         for p in rx:
 152             self.validate_6in4(p, p_reply)
 153
 154         # MTU tests (default is 1480)
 155         plen = 1481 - 40 - 8
 156         p_ip6 = IPv6(src="1::1", dst="2002:AC10:0402::1")
 157         p_payload = UDP(sport=1234, dport=1234) / Raw(self.payload(plen))
 158         p = p_ether / p_ip6 / p_payload
 159
 160         p_reply = (
 161             IP(src=self.pg2.local_ip4, dst=self.pg3.remote_ip4, proto="ipv6") / p_ip6
 162         )
 163
 164         rx = self.send_and_assert_no_replies(self.pg0, p * 10)
 165         self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
 166
 167     def test_6rd_ip4_to_ip6(self):
 168         """ip4 -> ip6 (decap) 6rd test"""
 169
 170         rv = self.vapi.ipip_6rd_add_tunnel(
 171             ip6_table_id=0,
 172             ip4_table_id=0,
 173             ip6_prefix="2002::/16",
 174             ip4_prefix="0.0.0.0/0",
 175             ip4_src=self.pg0.local_ip4,
 176             security_check=True,
 177         )
 178         self.tunnel_index = rv.sw_if_index
 179         rv = self.vapi.ipip_6rd_del_tunnel(rv.sw_if_index)
 180         rv = self.vapi.ipip_6rd_add_tunnel(
 181             ip6_table_id=0,
 182             ip4_table_id=0,
 183             ip6_prefix="2002::/16",
 184             ip4_prefix="0.0.0.0/0",
 185             ip4_src=self.pg0.local_ip4,
 186             security_check=True,
 187         )
 188         self.tunnel_index = rv.sw_if_index
 189
 190         p_ip6 = IPv6(src="2002:AC10:0202::1", dst=self.pg1.remote_ip6) / UDP(
 191             sport=1234, dport=1234
 192         )
 193
 194         p = (
 195             Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
 196             / IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4)
 197             / p_ip6
 198         )
 199
 200         p_reply = p_ip6
 201
 202         rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
 203         for p in rx:
 204             self.validate_4in6(p, p_reply)
 205         self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
 206
 207     def test_6rd_ip4_to_ip6_vrf(self):
 208         """ip4 -> ip6 (decap) 6rd VRF test"""
 209
 210         rv = self.vapi.ipip_6rd_add_tunnel(
 211             ip6_table_id=20,
 212             ip4_table_id=10,
 213             ip6_prefix="2002::/16",
 214             ip4_prefix="0.0.0.0/0",
 215             ip4_src=self.pg2.local_ip4,
 216             security_check=True,
 217         )
 218         self.tunnel_index = rv.sw_if_index
 219         rv = self.vapi.ipip_6rd_del_tunnel(rv.sw_if_index)
 220         rv = self.vapi.ipip_6rd_add_tunnel(
 221             ip6_table_id=20,
 222             ip4_table_id=10,
 223             ip6_prefix="2002::/16",
 224             ip4_prefix="0.0.0.0/0",
 225             ip4_src=self.pg2.local_ip4,
 226             security_check=True,
 227         )
 228         self.tunnel_index = rv.sw_if_index
 229         self.vapi.sw_interface_set_table(self.tunnel_index, 1, 20)
 230
 231         p_ip6 = IPv6(src="2002:AC10:0402::1", dst=self.pg3.remote_ip6) / UDP(
 232             sport=1234, dport=1234
 233         )
 234
 235         p = (
 236             Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac)
 237             / IP(src=self.pg3.remote_ip4, dst=self.pg2.local_ip4)
 238             / p_ip6
 239         )
 240
 241         p_reply = p_ip6
 242
 243         rx = self.send_and_expect(self.pg2, p * 10, self.pg3)
 244         for p in rx:
 245             self.validate_4in6(p, p_reply)
 246         self.vapi.sw_interface_set_table(self.tunnel_index, 1, 0)
 247         self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
 248
 249     def test_6rd_ip4_to_ip6_multiple(self):
 250         """ip4 -> ip6 (decap) 6rd test"""
 251
 252         self.tunnel_index = []
 253         rv = self.vapi.ipip_6rd_add_tunnel(
 254             ip6_table_id=0,
 255             ip4_table_id=0,
 256             ip6_prefix="2002::/16",
 257             ip4_prefix="0.0.0.0/0",
 258             ip4_src=self.pg0.local_ip4,
 259             security_check=True,
 260         )
 261         self.tunnel_index.append(rv.sw_if_index)
 262         rv = self.vapi.ipip_6rd_add_tunnel(
 263             ip6_table_id=0,
 264             ip4_table_id=0,
 265             ip6_prefix="2003::/16",
 266             ip4_prefix="0.0.0.0/0",
 267             ip4_src=self.pg1.local_ip4,
 268             security_check=True,
 269         )
 270
 271         self.tunnel_index.append(rv.sw_if_index)
 272
 273         self.vapi.cli("show ip6 fib")
 274         p_ether = Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
 275         p_ip4 = IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4)
 276         p_ip6_1 = IPv6(src="2002:AC10:0202::1", dst=self.pg1.remote_ip6) / UDP(
 277             sport=1234, dport=1234
 278         )
 279         p_ip6_2 = IPv6(src="2003:AC10:0202::1", dst=self.pg1.remote_ip6) / UDP(
 280             sport=1234, dport=1234
 281         )
 282
 283         p = p_ether / p_ip4 / p_ip6_1
 284         rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
 285         for p in rx:
 286             self.validate_4in6(p, p_ip6_1)
 287
 288         p = p_ether / p_ip4 / p_ip6_2
 289         rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
 290         for p in rx:
 291             self.validate_4in6(p, p_ip6_2)
 292         for i in self.tunnel_index:
 293             self.vapi.ipip_6rd_del_tunnel(i)
 294
 295     def test_6rd_ip4_to_ip6_suffix(self):
 296         """ip4 -> ip6 (decap) 6rd test"""
 297
 298         rv = self.vapi.ipip_6rd_add_tunnel(
 299             ip6_table_id=0,
 300             ip4_table_id=0,
 301             ip6_prefix="2002::/16",
 302             ip4_prefix="172.0.0.0/8",
 303             ip4_src=self.pg0.local_ip4,
 304             security_check=True,
 305         )
 306         self.tunnel_index = rv.sw_if_index
 307
 308         self.vapi.cli("show ip6 fib")
 309         p_ether = Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
 310         p_ip4 = IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4)
 311         p_ip6 = IPv6(src="2002:1002:0200::1", dst=self.pg1.remote_ip6) / UDP(
 312             sport=1234, dport=1234
 313         )
 314
 315         p = p_ether / p_ip4 / p_ip6
 316         rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
 317         for p in rx:
 318             self.validate_4in6(p, p_ip6)
 319         self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
 320
 321     def test_6rd_ip4_to_ip6_sec_check(self):
 322         """ip4 -> ip6 (decap) security check 6rd test"""
 323
 324         rv = self.vapi.ipip_6rd_add_tunnel(
 325             ip6_table_id=0,
 326             ip4_table_id=0,
 327             ip6_prefix="2002::/16",
 328             ip4_prefix="0.0.0.0/0",
 329             ip4_src=self.pg0.local_ip4,
 330             security_check=True,
 331         )
 332         self.tunnel_index = rv.sw_if_index
 333
 334         self.vapi.cli("show ip6 fib")
 335         p_ip6 = IPv6(src="2002:AC10:0202::1", dst=self.pg1.remote_ip6) / UDP(
 336             sport=1234, dport=1234
 337         )
 338         p_ip6_fail = IPv6(src="2002:DEAD:0202::1", dst=self.pg1.remote_ip6) / UDP(
 339             sport=1234, dport=1234
 340         )
 341
 342         p = (
 343             Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
 344             / IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4)
 345             / p_ip6
 346         )
 347
 348         p_reply = p_ip6
 349
 350         rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
 351         for p in rx:
 352             self.validate_4in6(p, p_reply)
 353
 354         p = (
 355             Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
 356             / IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4)
 357             / p_ip6_fail
 358         )
 359         rx = self.send_and_assert_no_replies(self.pg0, p * 10)
 360         self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
 361
 362     def test_6rd_bgp_tunnel(self):
 363         """6rd BGP tunnel"""
 364
 365         rv = self.vapi.ipip_6rd_add_tunnel(
 366             ip6_table_id=0,
 367             ip4_table_id=0,
 368             ip6_prefix="2002::/16",
 369             ip4_prefix="0.0.0.0/0",
 370             ip4_src=self.pg0.local_ip4,
 371             security_check=False,
 372         )
 373
 374         self.tunnel_index = rv.sw_if_index
 375
 376         default_route = VppIpRoute(
 377             self, "DEAD::", 16, [VppRoutePath("2002:0808:0808::", self.tunnel_index)]
 378         )
 379         default_route.add_vpp_config()
 380
 381         ip4_route = VppIpRoute(
 382             self, "8.0.0.0", 8, [VppRoutePath(self.pg1.remote_ip4, 0xFFFFFFFF)]
 383         )
 384         ip4_route.add_vpp_config()
 385
 386         # Via recursive route 6 -> 4
 387         p = (
 388             Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
 389             / IPv6(src="1::1", dst="DEAD:BEEF::1")
 390             / UDP(sport=1234, dport=1234)
 391         )
 392
 393         p_reply = IP(src=self.pg0.local_ip4, dst="8.8.8.8", proto="ipv6") / IPv6(
 394             src="1::1", dst="DEAD:BEEF::1", nh="UDP"
 395         )
 396
 397         rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
 398         for p in rx:
 399             self.validate_6in4(p, p_reply)
 400
 401         # Via recursive route 4 -> 6 (Security check must be disabled)
 402         p_ip6 = IPv6(src="DEAD:BEEF::1", dst=self.pg1.remote_ip6) / UDP(
 403             sport=1234, dport=1234
 404         )
 405         p = (
 406             Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
 407             / IP(src="8.8.8.8", dst=self.pg0.local_ip4)
 408             / p_ip6
 409         )
 410
 411         p_reply = p_ip6
 412
 413         rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
 414         for p in rx:
 415             self.validate_4in6(p, p_reply)
 416         ip4_route.remove_vpp_config()
 417         default_route.remove_vpp_config()
 418         self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
 419
 420
 421 if __name__ == "__main__":
 422     unittest.main(testRunner=VppTestRunner)