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 super(Test6RD, self).setUp()
31 t4 = VppIpTable(self, 10)
32 t6 = VppIpTable(self, 20, True)
38 i = self.pg_interfaces[n]
50 for i in self.pg_interfaces:
55 super(Test6RD, self).tearDown()
57 def validate_6in4(self, rx, expected):
63 self.assertEqual(rx[IP].src, expected[IP].src)
64 self.assertEqual(rx[IP].dst, expected[IP].dst)
65 self.assertEqual(rx[IP].proto, expected[IP].proto)
66 self.assertEqual(rx[IPv6].src, expected[IPv6].src)
67 self.assertEqual(rx[IPv6].dst, expected[IPv6].dst)
69 def validate_4in6(self, rx, expected):
75 self.assertEqual(rx[IPv6].src, expected[IPv6].src)
76 self.assertEqual(rx[IPv6].dst, expected[IPv6].dst)
77 self.assertEqual(rx[IPv6].nh, expected[IPv6].nh)
79 def payload(self, len):
82 def test_6rd_ip6_to_ip4(self):
83 """ ip6 -> ip4 (encap) 6rd test """
84 p_ether = Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
85 p_ip6 = IPv6(src="1::1", dst="2002:AC10:0202::1", nh='UDP')
87 rv = self.vapi.ipip_6rd_add_tunnel(
88 0, inet_pton(AF_INET6, '2002::'), 16,
89 0, inet_pton(AF_INET, '0.0.0.0'), 0,
90 self.pg0.local_ip4n, True)
91 self.tunnel_index = rv.sw_if_index
93 self.vapi.cli("show ip6 fib")
94 p_payload = UDP(sport=1234, dport=1234)
95 p = (p_ether / p_ip6 / p_payload)
97 p_reply = (IP(src=self.pg0.local_ip4, dst=self.pg1.remote_ip4,
98 proto='ipv6') / p_ip6)
100 rx = self.send_and_expect(self.pg0, p*10, self.pg1)
102 self.validate_6in4(p, p_reply)
104 # MTU tests (default is 1480)
106 p_ip6 = IPv6(src="1::1", dst="2002:AC10:0202::1")
107 p_payload = UDP(sport=1234, dport=1234) / Raw(self.payload(plen))
108 p = (p_ether / p_ip6 / p_payload)
110 p_reply = (IP(src=self.pg0.local_ip4, dst=self.pg1.remote_ip4,
111 proto='ipv6') / p_ip6)
113 rx = self.send_and_assert_no_replies(self.pg0, p*10)
114 self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
116 def test_6rd_ip6_to_ip4_vrf(self):
117 """ ip6 -> ip4 (encap) 6rd VRF test """
118 p_ether = Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac)
119 p_ip6 = IPv6(src="1::1", dst="2002:AC10:0402::1", nh='UDP')
121 rv = self.vapi.ipip_6rd_add_tunnel(
122 20, inet_pton(AF_INET6, '2002::'), 16,
123 10, inet_pton(AF_INET, '0.0.0.0'), 0,
124 self.pg2.local_ip4n, True)
125 self.tunnel_index = rv.sw_if_index
127 self.vapi.cli("show ip6 fib")
128 p_payload = UDP(sport=1234, dport=1234)
129 p = (p_ether / p_ip6 / p_payload)
131 p_reply = (IP(src=self.pg2.local_ip4, dst=self.pg3.remote_ip4,
132 proto='ipv6') / p_ip6)
134 rx = self.send_and_expect(self.pg2, p*10, self.pg3)
136 self.validate_6in4(p, p_reply)
138 # MTU tests (default is 1480)
140 p_ip6 = IPv6(src="1::1", dst="2002:AC10:0402::1")
141 p_payload = UDP(sport=1234, dport=1234) / Raw(self.payload(plen))
142 p = (p_ether / p_ip6 / p_payload)
144 p_reply = (IP(src=self.pg2.local_ip4, dst=self.pg3.remote_ip4,
145 proto='ipv6') / p_ip6)
147 rx = self.send_and_assert_no_replies(self.pg0, p*10)
148 self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
150 def test_6rd_ip4_to_ip6(self):
151 """ ip4 -> ip6 (decap) 6rd test """
153 rv = self.vapi.ipip_6rd_add_tunnel(
154 0, inet_pton(AF_INET6, '2002::'), 16,
155 0, inet_pton(AF_INET, '0.0.0.0'), 0,
156 self.pg0.local_ip4n, True)
157 self.tunnel_index = rv.sw_if_index
158 rv = self.vapi.ipip_6rd_del_tunnel(rv.sw_if_index)
159 rv = self.vapi.ipip_6rd_add_tunnel(
160 0, inet_pton(AF_INET6, '2002::'), 16,
161 0, inet_pton(AF_INET, '0.0.0.0'), 0,
162 self.pg0.local_ip4n, True)
163 self.tunnel_index = rv.sw_if_index
165 p_ip6 = (IPv6(src="2002:AC10:0202::1", dst=self.pg1.remote_ip6) /
166 UDP(sport=1234, dport=1234))
168 p = (Ether(src=self.pg0.remote_mac,
169 dst=self.pg0.local_mac) /
170 IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4) /
175 rx = self.send_and_expect(self.pg0, p*10, self.pg1)
177 self.validate_4in6(p, p_reply)
178 self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
180 def test_6rd_ip4_to_ip6_vrf(self):
181 """ ip4 -> ip6 (decap) 6rd VRF test """
183 rv = self.vapi.ipip_6rd_add_tunnel(
184 20, inet_pton(AF_INET6, '2002::'), 16,
185 10, inet_pton(AF_INET, '0.0.0.0'), 0,
186 self.pg2.local_ip4n, True)
187 self.tunnel_index = rv.sw_if_index
188 rv = self.vapi.ipip_6rd_del_tunnel(rv.sw_if_index)
189 rv = self.vapi.ipip_6rd_add_tunnel(
190 20, inet_pton(AF_INET6, '2002::'), 16,
191 10, inet_pton(AF_INET, '0.0.0.0'), 0,
192 self.pg2.local_ip4n, True)
193 self.tunnel_index = rv.sw_if_index
194 self.vapi.sw_interface_set_table(self.tunnel_index, 1, 20)
196 p_ip6 = (IPv6(src="2002:AC10:0402::1", dst=self.pg3.remote_ip6) /
197 UDP(sport=1234, dport=1234))
199 p = (Ether(src=self.pg2.remote_mac,
200 dst=self.pg2.local_mac) /
201 IP(src=self.pg3.remote_ip4, dst=self.pg2.local_ip4) /
206 rx = self.send_and_expect(self.pg2, p*10, self.pg3)
208 self.validate_4in6(p, p_reply)
209 self.vapi.sw_interface_set_table(self.tunnel_index, 1, 0)
210 self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
212 def test_6rd_ip4_to_ip6_multiple(self):
213 """ ip4 -> ip6 (decap) 6rd test """
215 self.tunnel_index = []
216 rv = self.vapi.ipip_6rd_add_tunnel(
217 0, inet_pton(AF_INET6, '2002::'), 16,
218 0, inet_pton(AF_INET, '0.0.0.0'), 0,
219 self.pg0.local_ip4n, True)
220 self.tunnel_index.append(rv.sw_if_index)
222 rv = self.vapi.ipip_6rd_add_tunnel(
223 0, inet_pton(AF_INET6, '2003::'), 16,
224 0, inet_pton(AF_INET, '0.0.0.0'), 0,
225 self.pg1.local_ip4n, True)
226 self.tunnel_index.append(rv.sw_if_index)
228 self.vapi.cli("show ip6 fib")
229 p_ether = Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
230 p_ip4 = IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4)
231 p_ip6_1 = (IPv6(src="2002:AC10:0202::1", dst=self.pg1.remote_ip6) /
232 UDP(sport=1234, dport=1234))
233 p_ip6_2 = (IPv6(src="2003:AC10:0202::1", dst=self.pg1.remote_ip6) /
234 UDP(sport=1234, dport=1234))
236 p = (p_ether / p_ip4 / p_ip6_1)
237 rx = self.send_and_expect(self.pg0, p*10, self.pg1)
239 self.validate_4in6(p, p_ip6_1)
241 p = (p_ether / p_ip4 / p_ip6_2)
242 rx = self.send_and_expect(self.pg0, p*10, self.pg1)
244 self.validate_4in6(p, p_ip6_2)
245 for i in self.tunnel_index:
246 self.vapi.ipip_6rd_del_tunnel(i)
248 def test_6rd_ip4_to_ip6_suffix(self):
249 """ ip4 -> ip6 (decap) 6rd test """
251 rv = self.vapi.ipip_6rd_add_tunnel(
252 0, inet_pton(AF_INET6, '2002::'), 16,
253 0, inet_pton(AF_INET, '172.0.0.0'), 8,
254 self.pg0.local_ip4n, True)
256 self.tunnel_index = rv.sw_if_index
258 self.vapi.cli("show ip6 fib")
259 p_ether = Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
260 p_ip4 = IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4)
261 p_ip6 = (IPv6(src="2002:1002:0200::1", dst=self.pg1.remote_ip6) /
262 UDP(sport=1234, dport=1234))
264 p = (p_ether / p_ip4 / p_ip6)
265 rx = self.send_and_expect(self.pg0, p*10, self.pg1)
267 self.validate_4in6(p, p_ip6)
268 self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
270 def test_6rd_ip4_to_ip6_sec_check(self):
271 """ ip4 -> ip6 (decap) security check 6rd test """
273 rv = self.vapi.ipip_6rd_add_tunnel(
274 0, inet_pton(AF_INET6, '2002::'), 16,
275 0, inet_pton(AF_INET, '0.0.0.0'), 0,
276 self.pg0.local_ip4n, True)
277 self.tunnel_index = rv.sw_if_index
279 self.vapi.cli("show ip6 fib")
280 p_ip6 = (IPv6(src="2002:AC10:0202::1", dst=self.pg1.remote_ip6) /
281 UDP(sport=1234, dport=1234))
282 p_ip6_fail = (IPv6(src="2002:DEAD:0202::1", dst=self.pg1.remote_ip6) /
283 UDP(sport=1234, dport=1234))
285 p = (Ether(src=self.pg0.remote_mac,
286 dst=self.pg0.local_mac) /
287 IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4) /
292 rx = self.send_and_expect(self.pg0, p*10, self.pg1)
294 self.validate_4in6(p, p_reply)
296 p = (Ether(src=self.pg0.remote_mac,
297 dst=self.pg0.local_mac) /
298 IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4) /
300 rx = self.send_and_assert_no_replies(self.pg0, p*10)
301 self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
303 def test_6rd_bgp_tunnel(self):
304 """ 6rd BGP tunnel """
306 rv = self.vapi.ipip_6rd_add_tunnel(
307 0, inet_pton(AF_INET6, '2002::'), 16,
308 0, inet_pton(AF_INET, '0.0.0.0'), 0,
309 self.pg0.local_ip4n, False)
310 self.tunnel_index = rv.sw_if_index
312 default_route = VppIpRoute(
313 self, "DEAD::", 16, [VppRoutePath("2002:0808:0808::",
315 proto=DpoProto.DPO_PROTO_IP6)],
317 default_route.add_vpp_config()
319 ip4_route = VppIpRoute(self, "8.0.0.0", 8,
320 [VppRoutePath(self.pg1.remote_ip4, 0xFFFFFFFF)])
321 ip4_route.add_vpp_config()
323 # Via recursive route 6 -> 4
324 p = (Ether(src=self.pg0.remote_mac,
325 dst=self.pg0.local_mac) /
326 IPv6(src="1::1", dst="DEAD:BEEF::1") /
327 UDP(sport=1234, dport=1234))
329 p_reply = (IP(src=self.pg0.local_ip4, dst="8.8.8.8",
331 IPv6(src='1::1', dst='DEAD:BEEF::1', nh='UDP'))
333 rx = self.send_and_expect(self.pg0, p*10, self.pg1)
335 self.validate_6in4(p, p_reply)
337 # Via recursive route 4 -> 6 (Security check must be disabled)
338 p_ip6 = (IPv6(src="DEAD:BEEF::1", dst=self.pg1.remote_ip6) /
339 UDP(sport=1234, dport=1234))
340 p = (Ether(src=self.pg0.remote_mac,
341 dst=self.pg0.local_mac) /
342 IP(src="8.8.8.8", dst=self.pg0.local_ip4) /
347 rx = self.send_and_expect(self.pg0, p*10, self.pg1)
349 self.validate_4in6(p, p_reply)
350 ip4_route.remove_vpp_config()
351 default_route.remove_vpp_config()
352 self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
355 if __name__ == '__main__':
356 unittest.main(testRunner=VppTestRunner)