3 from socket import inet_pton, inet_ntop, AF_INET, AF_INET6
6 from framework import VppTestCase, VppTestRunner
7 from vpp_ip import DpoProto
8 from vpp_ip_route import VppIpRoute, VppRoutePath, VppMplsLabel, VppIpTable
10 from scapy.packet import Raw
11 from scapy.layers.l2 import Ether
12 from scapy.layers.inet import IP, UDP
13 from scapy.layers.inet6 import IPv6
15 from vpp_object import VppObject
20 def find_l3xc(test, sw_if_index, dump_sw_if_index=None):
21 if not dump_sw_if_index:
22 dump_sw_if_index = sw_if_index
23 xcs = test.vapi.l3xc_dump(dump_sw_if_index)
25 if sw_if_index == xc.l3xc.sw_if_index:
30 class VppL3xc(VppObject):
31 def __init__(self, test, intf, paths, is_ip6=False):
36 self.encoded_paths = []
37 for path in self.paths:
38 self.encoded_paths.append(path.encode())
40 def add_vpp_config(self):
41 self._test.vapi.l3xc_update(
43 "is_ip6": self.is_ip6,
44 "sw_if_index": self.intf.sw_if_index,
45 "n_paths": len(self.paths),
46 "paths": self.encoded_paths,
49 self._test.registry.register(self, self._test.logger)
51 def remove_vpp_config(self):
52 self._test.vapi.l3xc_del(is_ip6=self.is_ip6, sw_if_index=self.intf.sw_if_index)
54 def query_vpp_config(self):
55 return find_l3xc(self._test, self.intf.sw_if_index)
58 return "l3xc-%d" % self.intf.sw_if_index
61 class TestL3xc(VppTestCase):
66 super(TestL3xc, cls).setUpClass()
69 def tearDownClass(cls):
70 super(TestL3xc, cls).tearDownClass()
73 super(TestL3xc, self).setUp()
75 self.create_pg_interfaces(range(6))
77 for i in self.pg_interfaces:
85 for i in self.pg_interfaces:
89 super(TestL3xc, self).tearDown()
95 # x-connect pg0 to pg1 and pg2 to pg3->5
98 self, self.pg0, [VppRoutePath(self.pg1.remote_ip4, self.pg1.sw_if_index)]
100 l3xc_1.add_vpp_config()
105 VppRoutePath(self.pg3.remote_ip4, self.pg3.sw_if_index),
106 VppRoutePath(self.pg4.remote_ip4, self.pg4.sw_if_index),
107 VppRoutePath(self.pg5.remote_ip4, self.pg5.sw_if_index),
110 l3xc_2.add_vpp_config()
112 self.assertTrue(find_l3xc(self, self.pg2.sw_if_index, 0xFFFFFFFF))
114 self.logger.info(self.vapi.cli("sh l3xc"))
117 # fire in packets. If it's forwarded then the L3XC was successful,
118 # since default routing will drop it
121 Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
122 / IP(src="1.1.1.1", dst="1.1.1.2")
123 / UDP(sport=1234, dport=1234)
126 # self.send_and_expect(self.pg0, p_1*NUM_PKTS, self.pg1)
129 for ii in range(NUM_PKTS):
131 Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
132 / IP(src="1.1.1.1", dst="1.1.1.2")
133 / UDP(sport=1000 + ii, dport=1234)
136 self.send_and_expect_load_balancing(
137 self.pg2, p_2, [self.pg3, self.pg4, self.pg5]
140 l3xc_2.remove_vpp_config()
141 self.send_and_assert_no_replies(self.pg2, p_2)
144 if __name__ == "__main__":
145 unittest.main(testRunner=VppTestRunner)