2 from socket import AF_INET, AF_INET6, inet_pton
4 from framework import VppTestCase, VppTestRunner
5 from vpp_interface import VppInterface
6 from vpp_ip_route import VppIpTable, VppIpRoute, VppRoutePath
8 from scapy.packet import Raw
9 from scapy.layers.l2 import Ether
10 from scapy.layers.inet import IP, UDP
13 class VppPipe(VppInterface):
20 return self.result.pipe_sw_if_index[1]
24 return self.result.pipe_sw_if_index[0]
26 def __init__(self, test, instance=0xffffffff):
27 super(VppPipe, self).__init__(test)
29 self.instance = instance
31 def add_vpp_config(self):
32 self.result = self._test.vapi.pipe_create(
33 0 if self.instance == 0xffffffff else 1,
35 self.set_sw_if_index(self.result.sw_if_index)
37 def remove_vpp_config(self):
38 self._test.vapi.pipe_delete(
39 self.result.sw_if_index)
42 return "pipe-%d" % (self._sw_if_index)
44 def query_vpp_config(self):
45 pipes = self._test.vapi.pipe_dump()
47 if p.sw_if_index == self.result.sw_if_index:
51 def set_unnumbered(self, ip_sw_if_index, is_add=True):
52 res = self._test.vapi.sw_interface_set_unnumbered(ip_sw_if_index,
54 res = self._test.vapi.sw_interface_set_unnumbered(ip_sw_if_index,
58 class TestPipe(VppTestCase):
62 super(TestPipe, self).setUp()
64 self.create_pg_interfaces(range(4))
66 for i in self.pg_interfaces:
70 for i in self.pg_interfaces:
73 super(TestPipe, self).tearDown()
78 pipes = [VppPipe(self), VppPipe(self, 10)]
85 # L2 cross-connect pipe0 east with pg0 and west with pg1
87 self.vapi.sw_interface_set_l2_xconnect(self.pg0.sw_if_index,
90 self.vapi.sw_interface_set_l2_xconnect(pipes[0].east,
93 self.vapi.sw_interface_set_l2_xconnect(self.pg1.sw_if_index,
96 self.vapi.sw_interface_set_l2_xconnect(pipes[0].west,
100 # test bi-directional L2 flow pg0<->pg1
101 p = (Ether(src=self.pg0.remote_mac,
102 dst=self.pg1.remote_mac) /
105 UDP(sport=1234, dport=1234) /
108 self.send_and_expect(self.pg0, p * 65, self.pg1)
109 self.send_and_expect(self.pg1, p * 65, self.pg0)
112 # Attach ACL to ensure features are run on the pipe
114 rule_1 = ({'is_permit': 0,
117 'srcport_or_icmptype_first': 1234,
118 'srcport_or_icmptype_last': 1234,
119 'src_ip_prefix_len': 32,
120 'src_ip_addr': inet_pton(AF_INET, "1.1.1.1"),
121 'dstport_or_icmpcode_first': 1234,
122 'dstport_or_icmpcode_last': 1234,
123 'dst_ip_prefix_len': 32,
124 'dst_ip_addr': inet_pton(AF_INET, "1.1.1.2")})
125 acl = self.vapi.acl_add_replace(acl_index=4294967295,
128 # Apply the ACL on the pipe on output
129 self.vapi.acl_interface_set_acl_list(pipes[0].east,
132 self.send_and_assert_no_replies(self.pg0, p * 65)
133 self.send_and_expect(self.pg1, p * 65, self.pg0)
135 # remove from output and apply on input
136 self.vapi.acl_interface_set_acl_list(pipes[0].east,
139 self.vapi.acl_interface_set_acl_list(pipes[0].west,
142 self.send_and_assert_no_replies(self.pg0, p * 65)
143 self.send_and_expect(self.pg1, p * 65, self.pg0)
144 self.vapi.acl_interface_set_acl_list(pipes[0].west,
147 self.send_and_expect(self.pg0, p * 65, self.pg1)
148 self.send_and_expect(self.pg1, p * 65, self.pg0)
151 # L3 routes in two separate tables so a pipe can be used to L3
155 tables.append(VppIpTable(self, 1))
156 tables.append(VppIpTable(self, 2))
161 self.pg2.set_table_ip4(1)
162 self.pg2.config_ip4()
163 self.pg2.resolve_arp()
164 self.pg3.set_table_ip4(2)
165 self.pg3.config_ip4()
166 self.pg3.resolve_arp()
169 routes.append(VppIpRoute(self, "1.1.1.1", 32,
170 [VppRoutePath(self.pg3.remote_ip4,
171 self.pg3.sw_if_index)],
173 routes.append(VppIpRoute(self, "1.1.1.1", 32,
174 [VppRoutePath("0.0.0.0", pipes[1].east)],
176 routes.append(VppIpRoute(self, "1.1.1.2", 32,
177 [VppRoutePath("0.0.0.0", pipes[1].west)],
179 routes.append(VppIpRoute(self, "1.1.1.2", 32,
180 [VppRoutePath(self.pg2.remote_ip4,
181 self.pg2.sw_if_index)],
187 p_east = (Ether(src=self.pg2.remote_mac,
188 dst=self.pg2.local_mac) /
191 UDP(sport=1234, dport=1234) /
194 # bind the pipe ends to the correct tables
195 self.vapi.sw_interface_set_table(pipes[1].west, 0, 2)
196 self.vapi.sw_interface_set_table(pipes[1].east, 0, 1)
198 # IP is not enabled on the pipes at this point
199 self.send_and_assert_no_replies(self.pg2, p_east * 65)
201 # IP enable the Pipes by making them unnumbered
202 pipes[0].set_unnumbered(self.pg2.sw_if_index)
203 pipes[1].set_unnumbered(self.pg3.sw_if_index)
205 self.send_and_expect(self.pg2, p_east * 65, self.pg3)
207 # and the return path
208 p_west = (Ether(src=self.pg3.remote_mac,
209 dst=self.pg3.local_mac) /
212 UDP(sport=1234, dport=1234) /
214 self.send_and_expect(self.pg3, p_west * 65, self.pg2)
217 # Use ACLs to test features run on the Pipes
219 self.vapi.acl_interface_set_acl_list(pipes[1].east,
222 self.send_and_assert_no_replies(self.pg2, p_east * 65)
223 self.send_and_expect(self.pg3, p_west * 65, self.pg2)
225 # remove from output and apply on input
226 self.vapi.acl_interface_set_acl_list(pipes[1].east,
229 self.vapi.acl_interface_set_acl_list(pipes[1].west,
232 self.send_and_assert_no_replies(self.pg2, p_east * 65)
233 self.send_and_expect(self.pg3, p_west * 65, self.pg2)
234 self.vapi.acl_interface_set_acl_list(pipes[1].west,
237 self.send_and_expect(self.pg2, p_east * 65, self.pg3)
238 self.send_and_expect(self.pg3, p_west * 65, self.pg2)
240 # cleanup (so the tables delete)
241 self.pg2.unconfig_ip4()
242 self.pg2.set_table_ip4(0)
243 self.pg3.unconfig_ip4()
244 self.pg3.set_table_ip4(0)
245 self.vapi.sw_interface_set_table(pipes[1].west, 0, 0)
246 self.vapi.sw_interface_set_table(pipes[1].east, 0, 0)
249 if __name__ == '__main__':
250 unittest.main(testRunner=VppTestRunner)