2 """ 6RD RFC5969 functional tests """
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, VppTestRunner
9 from vpp_ip import DpoProto
10 from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpTable
11 from socket import AF_INET, AF_INET6, inet_pton
13 """ Test6rd is a subclass of VPPTestCase classes.
20 class Test6RD(VppTestCase):
25 super(Test6RD, cls).setUpClass()
26 cls.create_pg_interfaces(range(4))
27 cls.interfaces = list(cls.pg_interfaces)
30 def tearDownClass(cls):
31 super(Test6RD, cls).tearDownClass()
34 super(Test6RD, self).setUp()
35 t4 = VppIpTable(self, 10)
36 t6 = VppIpTable(self, 20, True)
42 i = self.pg_interfaces[n]
54 for i in self.pg_interfaces:
59 super(Test6RD, self).tearDown()
61 def validate_6in4(self, rx, expected):
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)
73 def validate_4in6(self, rx, expected):
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)
83 def payload(self, len):
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')
91 rv = self.vapi.ipip_6rd_add_tunnel(0, 0, inet_pton(AF_INET6, '2002::'),
92 inet_pton(AF_INET, '0.0.0.0'),
93 self.pg0.local_ip4n, 16, 0, True)
94 self.tunnel_index = rv.sw_if_index
96 self.vapi.cli("show ip6 fib")
97 p_payload = UDP(sport=1234, dport=1234)
98 p = (p_ether / p_ip6 / p_payload)
100 p_reply = (IP(src=self.pg0.local_ip4, dst=self.pg1.remote_ip4,
101 proto='ipv6') / p_ip6)
103 rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
105 self.validate_6in4(p, p_reply)
107 # MTU tests (default is 1480)
109 p_ip6 = IPv6(src="1::1", dst="2002:AC10:0202::1")
110 p_payload = UDP(sport=1234, dport=1234) / Raw(self.payload(plen))
111 p = (p_ether / p_ip6 / p_payload)
113 p_reply = (IP(src=self.pg0.local_ip4, dst=self.pg1.remote_ip4,
114 proto='ipv6') / p_ip6)
116 rx = self.send_and_assert_no_replies(self.pg0, p * 10)
117 self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
119 def test_6rd_ip6_to_ip4_vrf(self):
120 """ ip6 -> ip4 (encap) 6rd VRF test """
121 p_ether = Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac)
122 p_ip6 = IPv6(src="1::1", dst="2002:AC10:0402::1", nh='UDP')
124 rv = self.vapi.ipip_6rd_add_tunnel(20, 10,
125 inet_pton(AF_INET6, '2002::'),
126 inet_pton(AF_INET, '0.0.0.0'),
127 self.pg2.local_ip4n, 16, 0, True)
128 self.tunnel_index = rv.sw_if_index
130 self.vapi.cli("show ip6 fib")
131 p_payload = UDP(sport=1234, dport=1234)
132 p = (p_ether / p_ip6 / p_payload)
134 p_reply = (IP(src=self.pg2.local_ip4, dst=self.pg3.remote_ip4,
135 proto='ipv6') / p_ip6)
137 rx = self.send_and_expect(self.pg2, p * 10, self.pg3)
139 self.validate_6in4(p, p_reply)
141 # MTU tests (default is 1480)
143 p_ip6 = IPv6(src="1::1", dst="2002:AC10:0402::1")
144 p_payload = UDP(sport=1234, dport=1234) / Raw(self.payload(plen))
145 p = (p_ether / p_ip6 / p_payload)
147 p_reply = (IP(src=self.pg2.local_ip4, dst=self.pg3.remote_ip4,
148 proto='ipv6') / p_ip6)
150 rx = self.send_and_assert_no_replies(self.pg0, p * 10)
151 self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
153 def test_6rd_ip4_to_ip6(self):
154 """ ip4 -> ip6 (decap) 6rd test """
156 rv = self.vapi.ipip_6rd_add_tunnel(0, 0, inet_pton(AF_INET6, '2002::'),
157 inet_pton(AF_INET, '0.0.0.0'),
158 self.pg0.local_ip4n, 16, 0, True)
159 self.tunnel_index = rv.sw_if_index
160 rv = self.vapi.ipip_6rd_del_tunnel(rv.sw_if_index)
161 rv = self.vapi.ipip_6rd_add_tunnel(0, 0, inet_pton(AF_INET6, '2002::'),
162 inet_pton(AF_INET, '0.0.0.0'),
163 self.pg0.local_ip4n, 16, 0, True)
164 self.tunnel_index = rv.sw_if_index
166 p_ip6 = (IPv6(src="2002:AC10:0202::1", dst=self.pg1.remote_ip6) /
167 UDP(sport=1234, dport=1234))
169 p = (Ether(src=self.pg0.remote_mac,
170 dst=self.pg0.local_mac) /
171 IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4) /
176 rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
178 self.validate_4in6(p, p_reply)
179 self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
181 def test_6rd_ip4_to_ip6_vrf(self):
182 """ ip4 -> ip6 (decap) 6rd VRF test """
184 rv = self.vapi.ipip_6rd_add_tunnel(20, 10,
185 inet_pton(AF_INET6, '2002::'),
186 inet_pton(AF_INET, '0.0.0.0'),
187 self.pg2.local_ip4n, 16, 0, True)
188 self.tunnel_index = rv.sw_if_index
189 rv = self.vapi.ipip_6rd_del_tunnel(rv.sw_if_index)
190 rv = self.vapi.ipip_6rd_add_tunnel(20, 10,
191 inet_pton(AF_INET6, '2002::'),
192 inet_pton(AF_INET, '0.0.0.0'),
193 self.pg2.local_ip4n, 16, 0, True)
194 self.tunnel_index = rv.sw_if_index
195 self.vapi.sw_interface_set_table(self.tunnel_index, 1, 20)
197 p_ip6 = (IPv6(src="2002:AC10:0402::1", dst=self.pg3.remote_ip6) /
198 UDP(sport=1234, dport=1234))
200 p = (Ether(src=self.pg2.remote_mac,
201 dst=self.pg2.local_mac) /
202 IP(src=self.pg3.remote_ip4, dst=self.pg2.local_ip4) /
207 rx = self.send_and_expect(self.pg2, p * 10, self.pg3)
209 self.validate_4in6(p, p_reply)
210 self.vapi.sw_interface_set_table(self.tunnel_index, 1, 0)
211 self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
213 def test_6rd_ip4_to_ip6_multiple(self):
214 """ ip4 -> ip6 (decap) 6rd test """
216 self.tunnel_index = []
217 rv = self.vapi.ipip_6rd_add_tunnel(0, 0, inet_pton(AF_INET6, '2002::'),
218 inet_pton(AF_INET, '0.0.0.0'),
219 self.pg0.local_ip4n, 16, 0, True)
220 self.tunnel_index.append(rv.sw_if_index)
222 rv = self.vapi.ipip_6rd_add_tunnel(0, 0, inet_pton(AF_INET6, '2003::'),
223 inet_pton(AF_INET, '0.0.0.0'),
224 self.pg1.local_ip4n, 16, 0, True)
225 self.tunnel_index.append(rv.sw_if_index)
227 self.vapi.cli("show ip6 fib")
228 p_ether = Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
229 p_ip4 = IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4)
230 p_ip6_1 = (IPv6(src="2002:AC10:0202::1", dst=self.pg1.remote_ip6) /
231 UDP(sport=1234, dport=1234))
232 p_ip6_2 = (IPv6(src="2003:AC10:0202::1", dst=self.pg1.remote_ip6) /
233 UDP(sport=1234, dport=1234))
235 p = (p_ether / p_ip4 / p_ip6_1)
236 rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
238 self.validate_4in6(p, p_ip6_1)
240 p = (p_ether / p_ip4 / p_ip6_2)
241 rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
243 self.validate_4in6(p, p_ip6_2)
244 for i in self.tunnel_index:
245 self.vapi.ipip_6rd_del_tunnel(i)
247 def test_6rd_ip4_to_ip6_suffix(self):
248 """ ip4 -> ip6 (decap) 6rd test """
250 rv = self.vapi.ipip_6rd_add_tunnel(0, 0, inet_pton(AF_INET6, '2002::'),
251 inet_pton(AF_INET, '172.0.0.0'),
252 self.pg0.local_ip4n, 16, 8, True)
254 self.tunnel_index = rv.sw_if_index
256 self.vapi.cli("show ip6 fib")
257 p_ether = Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
258 p_ip4 = IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4)
259 p_ip6 = (IPv6(src="2002:1002:0200::1", dst=self.pg1.remote_ip6) /
260 UDP(sport=1234, dport=1234))
262 p = (p_ether / p_ip4 / p_ip6)
263 rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
265 self.validate_4in6(p, p_ip6)
266 self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
268 def test_6rd_ip4_to_ip6_sec_check(self):
269 """ ip4 -> ip6 (decap) security check 6rd test """
271 rv = self.vapi.ipip_6rd_add_tunnel(0, 0, inet_pton(AF_INET6, '2002::'),
272 inet_pton(AF_INET, '0.0.0.0'),
273 self.pg0.local_ip4n, 16, 0, True)
274 self.tunnel_index = rv.sw_if_index
276 self.vapi.cli("show ip6 fib")
277 p_ip6 = (IPv6(src="2002:AC10:0202::1", dst=self.pg1.remote_ip6) /
278 UDP(sport=1234, dport=1234))
279 p_ip6_fail = (IPv6(src="2002:DEAD:0202::1", dst=self.pg1.remote_ip6) /
280 UDP(sport=1234, dport=1234))
282 p = (Ether(src=self.pg0.remote_mac,
283 dst=self.pg0.local_mac) /
284 IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4) /
289 rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
291 self.validate_4in6(p, p_reply)
293 p = (Ether(src=self.pg0.remote_mac,
294 dst=self.pg0.local_mac) /
295 IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4) /
297 rx = self.send_and_assert_no_replies(self.pg0, p * 10)
298 self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
300 def test_6rd_bgp_tunnel(self):
301 """ 6rd BGP tunnel """
303 rv = self.vapi.ipip_6rd_add_tunnel(0, 0, inet_pton(AF_INET6, '2002::'),
304 inet_pton(AF_INET, '0.0.0.0'),
305 self.pg0.local_ip4n, 16, 0, False)
306 self.tunnel_index = rv.sw_if_index
308 default_route = VppIpRoute(
309 self, "DEAD::", 16, [VppRoutePath("2002:0808:0808::",
311 proto=DpoProto.DPO_PROTO_IP6)],
313 default_route.add_vpp_config()
315 ip4_route = VppIpRoute(self, "8.0.0.0", 8,
316 [VppRoutePath(self.pg1.remote_ip4, 0xFFFFFFFF)])
317 ip4_route.add_vpp_config()
319 # Via recursive route 6 -> 4
320 p = (Ether(src=self.pg0.remote_mac,
321 dst=self.pg0.local_mac) /
322 IPv6(src="1::1", dst="DEAD:BEEF::1") /
323 UDP(sport=1234, dport=1234))
325 p_reply = (IP(src=self.pg0.local_ip4, dst="8.8.8.8",
327 IPv6(src='1::1', dst='DEAD:BEEF::1', nh='UDP'))
329 rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
331 self.validate_6in4(p, p_reply)
333 # Via recursive route 4 -> 6 (Security check must be disabled)
334 p_ip6 = (IPv6(src="DEAD:BEEF::1", dst=self.pg1.remote_ip6) /
335 UDP(sport=1234, dport=1234))
336 p = (Ether(src=self.pg0.remote_mac,
337 dst=self.pg0.local_mac) /
338 IP(src="8.8.8.8", dst=self.pg0.local_ip4) /
343 rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
345 self.validate_4in6(p, p_reply)
346 ip4_route.remove_vpp_config()
347 default_route.remove_vpp_config()
348 self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
351 if __name__ == '__main__':
352 unittest.main(testRunner=VppTestRunner)