3 from framework import VppTestCase, VppTestRunner
4 from vpp_ip_route import VppIpTable
6 from scapy.packet import Raw
7 from scapy.layers.l2 import Ether
8 from scapy.layers.inet import IP, UDP, ICMP
9 from scapy.layers.inet6 import IPv6
11 from vpp_papi import VppEnum
14 class TestSVS(VppTestCase):
18 super(TestSVS, self).setUp()
20 # create 2 pg interfaces
21 self.create_pg_interfaces(range(4))
25 for i in self.pg_interfaces:
29 tbl = VppIpTable(self, table_id)
31 tbl = VppIpTable(self, table_id, is_ip6=1)
34 i.set_table_ip4(table_id)
35 i.set_table_ip6(table_id)
43 for i in self.pg_interfaces:
50 super(TestSVS, self).tearDown()
53 """ Source VRF Select IP4 """
56 # packets destinet out of the 3 non-default table interfaces
58 pkts_0 = [(Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
59 IP(src="1.1.1.1", dst=self.pg1.remote_ip4) /
60 UDP(sport=1234, dport=1234) /
62 (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
63 IP(src="2.2.2.2", dst=self.pg2.remote_ip4) /
64 UDP(sport=1234, dport=1234) /
66 (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
67 IP(src="3.3.3.3", dst=self.pg3.remote_ip4) /
68 UDP(sport=1234, dport=1234) /
70 pkts_1 = [(Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
71 IP(src="1.1.1.1", dst=self.pg1.remote_ip4) /
72 UDP(sport=1234, dport=1234) /
74 (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
75 IP(src="2.2.2.2", dst=self.pg2.remote_ip4) /
76 UDP(sport=1234, dport=1234) /
78 (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
79 IP(src="3.3.3.3", dst=self.pg3.remote_ip4) /
80 UDP(sport=1234, dport=1234) /
84 # before adding the SVS config all these packets are dropped when
85 # ingressing on pg0 since pg0 is in the default table
88 self.send_and_assert_no_replies(self.pg0, p * 1)
91 # Add table 1001 & 1002 into which we'll add the routes
92 # determing the source VRF selection
94 table_ids = [101, 102]
96 for table_id in table_ids:
97 self.vapi.svs_table_add_del(
98 VppEnum.vl_api_address_family_t.ADDRESS_IP4, table_id)
101 # map X.0.0.0/8 to each SVS table for lookup in table X
103 for i in range(1, 4):
104 self.vapi.svs_route_add_del(
105 table_id, "%d.0.0.0/8" % i, i)
108 # Enable SVS on pg0/pg1 using table 1001/1002
110 self.vapi.svs_enable_disable(
111 VppEnum.vl_api_address_family_t.ADDRESS_IP4, table_ids[0],
112 self.pg0.sw_if_index)
113 self.vapi.svs_enable_disable(
114 VppEnum.vl_api_address_family_t.ADDRESS_IP4, table_ids[1],
115 self.pg1.sw_if_index)
118 # now all the packets should be delivered out the respective interface
120 self.send_and_expect(self.pg0, pkts_0[0] * 65, self.pg1)
121 self.send_and_expect(self.pg0, pkts_0[1] * 65, self.pg2)
122 self.send_and_expect(self.pg0, pkts_0[2] * 65, self.pg3)
123 self.send_and_expect(self.pg1, pkts_1[0] * 65, self.pg1)
124 self.send_and_expect(self.pg1, pkts_1[1] * 65, self.pg2)
125 self.send_and_expect(self.pg1, pkts_1[2] * 65, self.pg3)
128 # check that if the SVS lookup does not match a route the packet
129 # is forwarded using the interface's routing table
131 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
132 IP(src=self.pg0.remote_ip4, dst=self.pg0.remote_ip4) /
133 UDP(sport=1234, dport=1234) /
135 self.send_and_expect(self.pg0, p * 65, self.pg0)
137 p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
138 IP(src=self.pg1.remote_ip4, dst=self.pg1.remote_ip4) /
139 UDP(sport=1234, dport=1234) /
141 self.send_and_expect(self.pg1, p * 65, self.pg1)
144 # dump the SVS configs
146 ss = self.vapi.svs_dump()
148 self.assertEqual(ss[0].table_id, table_ids[0])
149 self.assertEqual(ss[0].sw_if_index, self.pg0.sw_if_index)
150 self.assertEqual(ss[0].af, VppEnum.vl_api_address_family_t.ADDRESS_IP4)
151 self.assertEqual(ss[1].table_id, table_ids[1])
152 self.assertEqual(ss[1].sw_if_index, self.pg1.sw_if_index)
153 self.assertEqual(ss[1].af, VppEnum.vl_api_address_family_t.ADDRESS_IP4)
158 self.vapi.svs_enable_disable(
159 VppEnum.vl_api_address_family_t.ADDRESS_IP4,
161 self.pg0.sw_if_index,
163 self.vapi.svs_enable_disable(
164 VppEnum.vl_api_address_family_t.ADDRESS_IP4,
166 self.pg1.sw_if_index,
169 for table_id in table_ids:
170 for i in range(1, 4):
171 self.vapi.svs_route_add_del(
172 table_id, "%d.0.0.0/8" % i,
174 self.vapi.svs_table_add_del(
175 VppEnum.vl_api_address_family_t.ADDRESS_IP4,
180 """ Source VRF Select IP6 """
183 # packets destinet out of the 3 non-default table interfaces
185 pkts_0 = [(Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
186 IPv6(src="2001:1::1", dst=self.pg1.remote_ip6) /
187 UDP(sport=1234, dport=1234) /
189 (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
190 IPv6(src="2001:2::1", dst=self.pg2.remote_ip6) /
191 UDP(sport=1234, dport=1234) /
193 (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
194 IPv6(src="2001:3::1", dst=self.pg3.remote_ip6) /
195 UDP(sport=1234, dport=1234) /
197 pkts_1 = [(Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
198 IPv6(src="2001:1::1", dst=self.pg1.remote_ip6) /
199 UDP(sport=1234, dport=1234) /
201 (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
202 IPv6(src="2001:2::1", dst=self.pg2.remote_ip6) /
203 UDP(sport=1234, dport=1234) /
205 (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
206 IPv6(src="2001:3::1", dst=self.pg3.remote_ip6) /
207 UDP(sport=1234, dport=1234) /
211 # before adding the SVS config all these packets are dropped when
212 # ingressing on pg0 since pg0 is in the default table
215 self.send_and_assert_no_replies(self.pg0, p * 1)
218 # Add table 1001 & 1002 into which we'll add the routes
219 # determing the source VRF selection
221 table_ids = [101, 102]
223 for table_id in table_ids:
224 self.vapi.svs_table_add_del(
225 VppEnum.vl_api_address_family_t.ADDRESS_IP6, table_id)
228 # map X.0.0.0/8 to each SVS table for lookup in table X
230 for i in range(1, 4):
231 self.vapi.svs_route_add_del(
232 table_id, "2001:%d::/32" % i,
236 # Enable SVS on pg0/pg1 using table 1001/1002
238 self.vapi.svs_enable_disable(
239 VppEnum.vl_api_address_family_t.ADDRESS_IP6,
241 self.pg0.sw_if_index)
242 self.vapi.svs_enable_disable(
243 VppEnum.vl_api_address_family_t.ADDRESS_IP6,
245 self.pg1.sw_if_index)
248 # now all the packets should be delivered out the respective interface
250 self.send_and_expect(self.pg0, pkts_0[0] * 65, self.pg1)
251 self.send_and_expect(self.pg0, pkts_0[1] * 65, self.pg2)
252 self.send_and_expect(self.pg0, pkts_0[2] * 65, self.pg3)
253 self.send_and_expect(self.pg1, pkts_1[0] * 65, self.pg1)
254 self.send_and_expect(self.pg1, pkts_1[1] * 65, self.pg2)
255 self.send_and_expect(self.pg1, pkts_1[2] * 65, self.pg3)
258 # check that if the SVS lookup does not match a route the packet
259 # is forwarded using the interface's routing table
261 p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
262 IPv6(src=self.pg0.remote_ip6, dst=self.pg0.remote_ip6) /
263 UDP(sport=1234, dport=1234) /
265 self.send_and_expect(self.pg0, p * 65, self.pg0)
267 p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
268 IPv6(src=self.pg1.remote_ip6, dst=self.pg1.remote_ip6) /
269 UDP(sport=1234, dport=1234) /
271 self.send_and_expect(self.pg1, p * 65, self.pg1)
274 # dump the SVS configs
276 ss = self.vapi.svs_dump()
278 self.assertEqual(ss[0].table_id, table_ids[0])
279 self.assertEqual(ss[0].sw_if_index, self.pg0.sw_if_index)
280 self.assertEqual(ss[0].af, VppEnum.vl_api_address_family_t.ADDRESS_IP6)
281 self.assertEqual(ss[1].table_id, table_ids[1])
282 self.assertEqual(ss[1].sw_if_index, self.pg1.sw_if_index)
283 self.assertEqual(ss[1].af, VppEnum.vl_api_address_family_t.ADDRESS_IP6)
288 self.vapi.svs_enable_disable(
289 VppEnum.vl_api_address_family_t.ADDRESS_IP6,
291 self.pg0.sw_if_index,
293 self.vapi.svs_enable_disable(
294 VppEnum.vl_api_address_family_t.ADDRESS_IP6,
296 self.pg1.sw_if_index,
298 for table_id in table_ids:
299 for i in range(1, 4):
300 self.vapi.svs_route_add_del(
301 table_id, "2001:%d::/32" % i,
303 self.vapi.svs_table_add_del(
304 VppEnum.vl_api_address_family_t.ADDRESS_IP6,
309 if __name__ == '__main__':
310 unittest.main(testRunner=VppTestRunner)