3 from framework import VppTestCase, VppTestRunner
4 from vpp_ip import VppIpPrefix
6 from vpp_ip_route import VppIpTable
8 from scapy.packet import Raw
9 from scapy.layers.l2 import Ether
10 from scapy.layers.inet import IP, UDP, ICMP
11 from scapy.layers.inet6 import IPv6
13 from vpp_papi import VppEnum
16 class TestSVS(VppTestCase):
20 super(TestSVS, self).setUp()
22 # create 2 pg interfaces
23 self.create_pg_interfaces(range(4))
27 for i in self.pg_interfaces:
31 tbl = VppIpTable(self, table_id)
33 tbl = VppIpTable(self, table_id, is_ip6=1)
36 i.set_table_ip4(table_id)
37 i.set_table_ip6(table_id)
45 for i in self.pg_interfaces:
52 super(TestSVS, self).tearDown()
55 """ Source VRF Select IP4 """
58 # packets destinet out of the 3 non-default table interfaces
60 pkts_0 = [(Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
61 IP(src="1.1.1.1", dst=self.pg1.remote_ip4) /
62 UDP(sport=1234, dport=1234) /
64 (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
65 IP(src="2.2.2.2", dst=self.pg2.remote_ip4) /
66 UDP(sport=1234, dport=1234) /
68 (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
69 IP(src="3.3.3.3", dst=self.pg3.remote_ip4) /
70 UDP(sport=1234, dport=1234) /
72 pkts_1 = [(Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
73 IP(src="1.1.1.1", dst=self.pg1.remote_ip4) /
74 UDP(sport=1234, dport=1234) /
76 (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
77 IP(src="2.2.2.2", dst=self.pg2.remote_ip4) /
78 UDP(sport=1234, dport=1234) /
80 (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
81 IP(src="3.3.3.3", dst=self.pg3.remote_ip4) /
82 UDP(sport=1234, dport=1234) /
86 # before adding the SVS config all these packets are dropped when
87 # ingressing on pg0 since pg0 is in the default table
90 self.send_and_assert_no_replies(self.pg0, p * 1)
93 # Add table 1001 & 1002 into which we'll add the routes
94 # determing the source VRF selection
96 table_ids = [101, 102]
98 for table_id in table_ids:
99 self.vapi.svs_table_add_del(
100 VppEnum.vl_api_address_family_t.ADDRESS_IP4, table_id)
103 # map X.0.0.0/8 to each SVS table for lookup in table X
105 for i in range(1, 4):
106 self.vapi.svs_route_add_del(
108 VppIpPrefix("%d.0.0.0" % i, 8).encode(),
112 # Enable SVS on pg0/pg1 using table 1001/1002
114 self.vapi.svs_enable_disable(
115 VppEnum.vl_api_address_family_t.ADDRESS_IP4, table_ids[0],
116 self.pg0.sw_if_index)
117 self.vapi.svs_enable_disable(
118 VppEnum.vl_api_address_family_t.ADDRESS_IP4, table_ids[1],
119 self.pg1.sw_if_index)
122 # now all the packets should be delivered out the respective interface
124 self.send_and_expect(self.pg0, pkts_0[0] * 65, self.pg1)
125 self.send_and_expect(self.pg0, pkts_0[1] * 65, self.pg2)
126 self.send_and_expect(self.pg0, pkts_0[2] * 65, self.pg3)
127 self.send_and_expect(self.pg1, pkts_1[0] * 65, self.pg1)
128 self.send_and_expect(self.pg1, pkts_1[1] * 65, self.pg2)
129 self.send_and_expect(self.pg1, pkts_1[2] * 65, self.pg3)
132 # check that if the SVS lookup does not match a route the packet
133 # is forwarded using the interface's routing table
135 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
136 IP(src=self.pg0.remote_ip4, dst=self.pg0.remote_ip4) /
137 UDP(sport=1234, dport=1234) /
139 self.send_and_expect(self.pg0, p * 65, self.pg0)
141 p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
142 IP(src=self.pg1.remote_ip4, dst=self.pg1.remote_ip4) /
143 UDP(sport=1234, dport=1234) /
145 self.send_and_expect(self.pg1, p * 65, self.pg1)
148 # dump the SVS configs
150 ss = self.vapi.svs_dump()
152 self.assertEqual(ss[0].table_id, table_ids[0])
153 self.assertEqual(ss[0].sw_if_index, self.pg0.sw_if_index)
154 self.assertEqual(ss[0].af, VppEnum.vl_api_address_family_t.ADDRESS_IP4)
155 self.assertEqual(ss[1].table_id, table_ids[1])
156 self.assertEqual(ss[1].sw_if_index, self.pg1.sw_if_index)
157 self.assertEqual(ss[1].af, VppEnum.vl_api_address_family_t.ADDRESS_IP4)
162 self.vapi.svs_enable_disable(
163 VppEnum.vl_api_address_family_t.ADDRESS_IP4,
165 self.pg0.sw_if_index,
167 self.vapi.svs_enable_disable(
168 VppEnum.vl_api_address_family_t.ADDRESS_IP4,
170 self.pg1.sw_if_index,
173 for table_id in table_ids:
174 for i in range(1, 4):
175 self.vapi.svs_route_add_del(
177 VppIpPrefix("%d.0.0.0" % i, 8).encode(),
179 self.vapi.svs_table_add_del(
180 VppEnum.vl_api_address_family_t.ADDRESS_IP4,
185 """ Source VRF Select IP6 """
188 # packets destinet out of the 3 non-default table interfaces
190 pkts_0 = [(Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
191 IPv6(src="2001:1::1", dst=self.pg1.remote_ip6) /
192 UDP(sport=1234, dport=1234) /
194 (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
195 IPv6(src="2001:2::1", dst=self.pg2.remote_ip6) /
196 UDP(sport=1234, dport=1234) /
198 (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
199 IPv6(src="2001:3::1", dst=self.pg3.remote_ip6) /
200 UDP(sport=1234, dport=1234) /
202 pkts_1 = [(Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
203 IPv6(src="2001:1::1", dst=self.pg1.remote_ip6) /
204 UDP(sport=1234, dport=1234) /
206 (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
207 IPv6(src="2001:2::1", dst=self.pg2.remote_ip6) /
208 UDP(sport=1234, dport=1234) /
210 (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
211 IPv6(src="2001:3::1", dst=self.pg3.remote_ip6) /
212 UDP(sport=1234, dport=1234) /
216 # before adding the SVS config all these packets are dropped when
217 # ingressing on pg0 since pg0 is in the default table
220 self.send_and_assert_no_replies(self.pg0, p * 1)
223 # Add table 1001 & 1002 into which we'll add the routes
224 # determing the source VRF selection
226 table_ids = [101, 102]
228 for table_id in table_ids:
229 self.vapi.svs_table_add_del(
230 VppEnum.vl_api_address_family_t.ADDRESS_IP6, table_id)
233 # map X.0.0.0/8 to each SVS table for lookup in table X
235 for i in range(1, 4):
236 self.vapi.svs_route_add_del(
238 VppIpPrefix("2001:%d::" % i, 32).encode(),
242 # Enable SVS on pg0/pg1 using table 1001/1002
244 self.vapi.svs_enable_disable(
245 VppEnum.vl_api_address_family_t.ADDRESS_IP6,
247 self.pg0.sw_if_index)
248 self.vapi.svs_enable_disable(
249 VppEnum.vl_api_address_family_t.ADDRESS_IP6,
251 self.pg1.sw_if_index)
254 # now all the packets should be delivered out the respective interface
256 self.send_and_expect(self.pg0, pkts_0[0] * 65, self.pg1)
257 self.send_and_expect(self.pg0, pkts_0[1] * 65, self.pg2)
258 self.send_and_expect(self.pg0, pkts_0[2] * 65, self.pg3)
259 self.send_and_expect(self.pg1, pkts_1[0] * 65, self.pg1)
260 self.send_and_expect(self.pg1, pkts_1[1] * 65, self.pg2)
261 self.send_and_expect(self.pg1, pkts_1[2] * 65, self.pg3)
264 # check that if the SVS lookup does not match a route the packet
265 # is forwarded using the interface's routing table
267 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
268 IPv6(src=self.pg0.remote_ip6, dst=self.pg0.remote_ip6) /
269 UDP(sport=1234, dport=1234) /
271 self.send_and_expect(self.pg0, p * 65, self.pg0)
273 p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
274 IPv6(src=self.pg1.remote_ip6, dst=self.pg1.remote_ip6) /
275 UDP(sport=1234, dport=1234) /
277 self.send_and_expect(self.pg1, p * 65, self.pg1)
280 # dump the SVS configs
282 ss = self.vapi.svs_dump()
284 self.assertEqual(ss[0].table_id, table_ids[0])
285 self.assertEqual(ss[0].sw_if_index, self.pg0.sw_if_index)
286 self.assertEqual(ss[0].af, VppEnum.vl_api_address_family_t.ADDRESS_IP6)
287 self.assertEqual(ss[1].table_id, table_ids[1])
288 self.assertEqual(ss[1].sw_if_index, self.pg1.sw_if_index)
289 self.assertEqual(ss[1].af, VppEnum.vl_api_address_family_t.ADDRESS_IP6)
294 self.vapi.svs_enable_disable(
295 VppEnum.vl_api_address_family_t.ADDRESS_IP6,
297 self.pg0.sw_if_index,
299 self.vapi.svs_enable_disable(
300 VppEnum.vl_api_address_family_t.ADDRESS_IP6,
302 self.pg1.sw_if_index,
304 for table_id in table_ids:
305 for i in range(1, 4):
306 self.vapi.svs_route_add_del(
308 VppIpPrefix("2001:%d::" % i, 32).encode(),
310 self.vapi.svs_table_add_del(
311 VppEnum.vl_api_address_family_t.ADDRESS_IP6,
316 if __name__ == '__main__':
317 unittest.main(testRunner=VppTestRunner)