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(0, 0, inet_pton(AF_INET6, '2002::'),
88 inet_pton(AF_INET, '0.0.0.0'),
89 self.pg0.local_ip4n, 16, 0, True)
90 self.tunnel_index = rv.sw_if_index
92 self.vapi.cli("show ip6 fib")
93 p_payload = UDP(sport=1234, dport=1234)
94 p = (p_ether / p_ip6 / p_payload)
96 p_reply = (IP(src=self.pg0.local_ip4, dst=self.pg1.remote_ip4,
97 proto='ipv6') / p_ip6)
99 rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
101 self.validate_6in4(p, p_reply)
103 # MTU tests (default is 1480)
105 p_ip6 = IPv6(src="1::1", dst="2002:AC10:0202::1")
106 p_payload = UDP(sport=1234, dport=1234) / Raw(self.payload(plen))
107 p = (p_ether / p_ip6 / p_payload)
109 p_reply = (IP(src=self.pg0.local_ip4, dst=self.pg1.remote_ip4,
110 proto='ipv6') / p_ip6)
112 rx = self.send_and_assert_no_replies(self.pg0, p * 10)
113 self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
115 def test_6rd_ip6_to_ip4_vrf(self):
116 """ ip6 -> ip4 (encap) 6rd VRF test """
117 p_ether = Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac)
118 p_ip6 = IPv6(src="1::1", dst="2002:AC10:0402::1", nh='UDP')
120 rv = self.vapi.ipip_6rd_add_tunnel(20, 10,
121 inet_pton(AF_INET6, '2002::'),
122 inet_pton(AF_INET, '0.0.0.0'),
123 self.pg2.local_ip4n, 16, 0, True)
124 self.tunnel_index = rv.sw_if_index
126 self.vapi.cli("show ip6 fib")
127 p_payload = UDP(sport=1234, dport=1234)
128 p = (p_ether / p_ip6 / p_payload)
130 p_reply = (IP(src=self.pg2.local_ip4, dst=self.pg3.remote_ip4,
131 proto='ipv6') / p_ip6)
133 rx = self.send_and_expect(self.pg2, p * 10, self.pg3)
135 self.validate_6in4(p, p_reply)
137 # MTU tests (default is 1480)
139 p_ip6 = IPv6(src="1::1", dst="2002:AC10:0402::1")
140 p_payload = UDP(sport=1234, dport=1234) / Raw(self.payload(plen))
141 p = (p_ether / p_ip6 / p_payload)
143 p_reply = (IP(src=self.pg2.local_ip4, dst=self.pg3.remote_ip4,
144 proto='ipv6') / p_ip6)
146 rx = self.send_and_assert_no_replies(self.pg0, p * 10)
147 self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
149 def test_6rd_ip4_to_ip6(self):
150 """ ip4 -> ip6 (decap) 6rd test """
152 rv = self.vapi.ipip_6rd_add_tunnel(0, 0, inet_pton(AF_INET6, '2002::'),
153 inet_pton(AF_INET, '0.0.0.0'),
154 self.pg0.local_ip4n, 16, 0, True)
155 self.tunnel_index = rv.sw_if_index
156 rv = self.vapi.ipip_6rd_del_tunnel(rv.sw_if_index)
157 rv = self.vapi.ipip_6rd_add_tunnel(0, 0, inet_pton(AF_INET6, '2002::'),
158 inet_pton(AF_INET, '0.0.0.0'),
159 self.pg0.local_ip4n, 16, 0, True)
160 self.tunnel_index = rv.sw_if_index
162 p_ip6 = (IPv6(src="2002:AC10:0202::1", dst=self.pg1.remote_ip6) /
163 UDP(sport=1234, dport=1234))
165 p = (Ether(src=self.pg0.remote_mac,
166 dst=self.pg0.local_mac) /
167 IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4) /
172 rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
174 self.validate_4in6(p, p_reply)
175 self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
177 def test_6rd_ip4_to_ip6_vrf(self):
178 """ ip4 -> ip6 (decap) 6rd VRF test """
180 rv = self.vapi.ipip_6rd_add_tunnel(20, 10,
181 inet_pton(AF_INET6, '2002::'),
182 inet_pton(AF_INET, '0.0.0.0'),
183 self.pg2.local_ip4n, 16, 0, True)
184 self.tunnel_index = rv.sw_if_index
185 rv = self.vapi.ipip_6rd_del_tunnel(rv.sw_if_index)
186 rv = self.vapi.ipip_6rd_add_tunnel(20, 10,
187 inet_pton(AF_INET6, '2002::'),
188 inet_pton(AF_INET, '0.0.0.0'),
189 self.pg2.local_ip4n, 16, 0, True)
190 self.tunnel_index = rv.sw_if_index
191 self.vapi.sw_interface_set_table(self.tunnel_index, 1, 20)
193 p_ip6 = (IPv6(src="2002:AC10:0402::1", dst=self.pg3.remote_ip6) /
194 UDP(sport=1234, dport=1234))
196 p = (Ether(src=self.pg2.remote_mac,
197 dst=self.pg2.local_mac) /
198 IP(src=self.pg3.remote_ip4, dst=self.pg2.local_ip4) /
203 rx = self.send_and_expect(self.pg2, p * 10, self.pg3)
205 self.validate_4in6(p, p_reply)
206 self.vapi.sw_interface_set_table(self.tunnel_index, 1, 0)
207 self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
209 def test_6rd_ip4_to_ip6_multiple(self):
210 """ ip4 -> ip6 (decap) 6rd test """
212 self.tunnel_index = []
213 rv = self.vapi.ipip_6rd_add_tunnel(0, 0, inet_pton(AF_INET6, '2002::'),
214 inet_pton(AF_INET, '0.0.0.0'),
215 self.pg0.local_ip4n, 16, 0, True)
216 self.tunnel_index.append(rv.sw_if_index)
218 rv = self.vapi.ipip_6rd_add_tunnel(0, 0, inet_pton(AF_INET6, '2003::'),
219 inet_pton(AF_INET, '0.0.0.0'),
220 self.pg1.local_ip4n, 16, 0, True)
221 self.tunnel_index.append(rv.sw_if_index)
223 self.vapi.cli("show ip6 fib")
224 p_ether = Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
225 p_ip4 = IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4)
226 p_ip6_1 = (IPv6(src="2002:AC10:0202::1", dst=self.pg1.remote_ip6) /
227 UDP(sport=1234, dport=1234))
228 p_ip6_2 = (IPv6(src="2003:AC10:0202::1", dst=self.pg1.remote_ip6) /
229 UDP(sport=1234, dport=1234))
231 p = (p_ether / p_ip4 / p_ip6_1)
232 rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
234 self.validate_4in6(p, p_ip6_1)
236 p = (p_ether / p_ip4 / p_ip6_2)
237 rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
239 self.validate_4in6(p, p_ip6_2)
240 for i in self.tunnel_index:
241 self.vapi.ipip_6rd_del_tunnel(i)
243 def test_6rd_ip4_to_ip6_suffix(self):
244 """ ip4 -> ip6 (decap) 6rd test """
246 rv = self.vapi.ipip_6rd_add_tunnel(0, 0, inet_pton(AF_INET6, '2002::'),
247 inet_pton(AF_INET, '172.0.0.0'),
248 self.pg0.local_ip4n, 16, 8, True)
250 self.tunnel_index = rv.sw_if_index
252 self.vapi.cli("show ip6 fib")
253 p_ether = Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
254 p_ip4 = IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4)
255 p_ip6 = (IPv6(src="2002:1002:0200::1", dst=self.pg1.remote_ip6) /
256 UDP(sport=1234, dport=1234))
258 p = (p_ether / p_ip4 / p_ip6)
259 rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
261 self.validate_4in6(p, p_ip6)
262 self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
264 def test_6rd_ip4_to_ip6_sec_check(self):
265 """ ip4 -> ip6 (decap) security check 6rd test """
267 rv = self.vapi.ipip_6rd_add_tunnel(0, 0, inet_pton(AF_INET6, '2002::'),
268 inet_pton(AF_INET, '0.0.0.0'),
269 self.pg0.local_ip4n, 16, 0, True)
270 self.tunnel_index = rv.sw_if_index
272 self.vapi.cli("show ip6 fib")
273 p_ip6 = (IPv6(src="2002:AC10:0202::1", dst=self.pg1.remote_ip6) /
274 UDP(sport=1234, dport=1234))
275 p_ip6_fail = (IPv6(src="2002:DEAD:0202::1", dst=self.pg1.remote_ip6) /
276 UDP(sport=1234, dport=1234))
278 p = (Ether(src=self.pg0.remote_mac,
279 dst=self.pg0.local_mac) /
280 IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4) /
285 rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
287 self.validate_4in6(p, p_reply)
289 p = (Ether(src=self.pg0.remote_mac,
290 dst=self.pg0.local_mac) /
291 IP(src=self.pg1.remote_ip4, dst=self.pg0.local_ip4) /
293 rx = self.send_and_assert_no_replies(self.pg0, p * 10)
294 self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
296 def test_6rd_bgp_tunnel(self):
297 """ 6rd BGP tunnel """
299 rv = self.vapi.ipip_6rd_add_tunnel(0, 0, inet_pton(AF_INET6, '2002::'),
300 inet_pton(AF_INET, '0.0.0.0'),
301 self.pg0.local_ip4n, 16, 0, False)
302 self.tunnel_index = rv.sw_if_index
304 default_route = VppIpRoute(
305 self, "DEAD::", 16, [VppRoutePath("2002:0808:0808::",
307 proto=DpoProto.DPO_PROTO_IP6)],
309 default_route.add_vpp_config()
311 ip4_route = VppIpRoute(self, "8.0.0.0", 8,
312 [VppRoutePath(self.pg1.remote_ip4, 0xFFFFFFFF)])
313 ip4_route.add_vpp_config()
315 # Via recursive route 6 -> 4
316 p = (Ether(src=self.pg0.remote_mac,
317 dst=self.pg0.local_mac) /
318 IPv6(src="1::1", dst="DEAD:BEEF::1") /
319 UDP(sport=1234, dport=1234))
321 p_reply = (IP(src=self.pg0.local_ip4, dst="8.8.8.8",
323 IPv6(src='1::1', dst='DEAD:BEEF::1', nh='UDP'))
325 rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
327 self.validate_6in4(p, p_reply)
329 # Via recursive route 4 -> 6 (Security check must be disabled)
330 p_ip6 = (IPv6(src="DEAD:BEEF::1", dst=self.pg1.remote_ip6) /
331 UDP(sport=1234, dport=1234))
332 p = (Ether(src=self.pg0.remote_mac,
333 dst=self.pg0.local_mac) /
334 IP(src="8.8.8.8", dst=self.pg0.local_ip4) /
339 rx = self.send_and_expect(self.pg0, p * 10, self.pg1)
341 self.validate_4in6(p, p_reply)
342 ip4_route.remove_vpp_config()
343 default_route.remove_vpp_config()
344 self.vapi.ipip_6rd_del_tunnel(self.tunnel_index)
347 if __name__ == '__main__':
348 unittest.main(testRunner=VppTestRunner)