4 from scapy.fields import BitField, ByteField, FlagsField, IntField
5 from scapy.packet import bind_layers, Packet, Raw
6 from scapy.layers.inet import IP, UDP, Ether
7 from scapy.layers.inet6 import IPv6
9 from framework import VppTestCase, VppTestRunner
11 from util import ppp, ForeignAddressFactory
13 # From py_lispnetworking.lisp.py: # GNU General Public License v2.0
16 class LISP_GPE_Header(Packet):
17 name = "LISP GPE Header"
19 FlagsField("gpe_flags", None, 6, ["N", "L", "E", "V", "I", "P"]),
20 BitField("reserved", 0, 18),
21 ByteField("next_proto", 0),
24 bind_layers(UDP, LISP_GPE_Header, dport=4341)
25 bind_layers(UDP, LISP_GPE_Header, sport=4341)
26 bind_layers(LISP_GPE_Header, IP, next_proto=1)
27 bind_layers(LISP_GPE_Header, IPv6, next_proto=2)
28 bind_layers(LISP_GPE_Header, Ether, next_proto=3)
33 config_order = ['locator-sets',
39 """ Basic class for data driven testing """
40 def __init__(self, test, test_cases):
41 self._test_cases = test_cases
46 return self._test_cases
52 def create_packet(self, src_if, dst_if, deid, payload=''):
59 packet = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
60 IP(src=src_if.remote_ip4, dst=deid) /
66 """ testing procedure """
70 class SimpleDriver(Driver):
71 """ Implements simple test procedure """
72 def __init__(self, test, test_cases):
73 super(SimpleDriver, self).__init__(test, test_cases)
75 def verify_capture(self, src_loc, dst_loc, capture):
77 Verify captured packet
79 :param src_loc: source locator address
80 :param dst_loc: destination locator address
81 :param capture: list of captured packets
83 self.test.assertEqual(len(capture), 1, "Unexpected number of "
84 "packets! Expected 1 but {} received"
85 .format(len(capture)))
89 # assert the values match
90 self.test.assertEqual(ip_hdr.src, src_loc, "IP source address")
91 self.test.assertEqual(ip_hdr.dst, dst_loc,
92 "IP destination address")
93 gpe_hdr = packet[LISP_GPE_Header]
94 self.test.assertEqual(gpe_hdr.next_proto, 1,
95 "next_proto is not ipv4!")
97 self.test.assertEqual(ih.src, self.test.pg0.remote_ip4,
98 "unexpected source EID!")
99 self.test.assertEqual(ih.dst, self.test.deid_ip4,
100 "unexpected dest EID!")
102 self.test.logger.error(ppp("Unexpected or invalid packet:",
106 def configure_tc(self, tc):
107 for config_item in self.config_order:
108 for vpp_object in tc[config_item]:
109 vpp_object.add_vpp_config()
112 """ Send traffic for each test case and verify that it
114 for tc in enumerate(self.test_cases):
115 self.test.logger.info('Running {}'.format(tc[1]['name']))
116 self.configure_tc(tc[1])
118 packet = self.create_packet(self.test.pg0, self.test.pg1, dest,
120 self.test.pg0.add_stream(packet)
121 self.test.pg0.enable_capture()
122 self.test.pg1.enable_capture()
124 capture = self.test.pg1.get_capture(1)
125 self.verify_capture(self.test.pg1.local_ip4,
126 self.test.pg1.remote_ip4, capture)
127 self.test.pg0.assert_nothing_captured()
130 class TestLisp(VppTestCase):
131 """ Basic LISP test """
135 super(TestLisp, cls).setUpClass()
136 cls.faf = ForeignAddressFactory()
137 cls.create_pg_interfaces(range(2)) # create pg0 and pg1
138 for i in cls.pg_interfaces:
139 i.admin_up() # put the interface upsrc_if
140 i.config_ip4() # configure IPv4 address on the interface
141 i.resolve_arp() # resolve ARP, so that we know VPP MAC
144 super(TestLisp, self).setUp()
145 self.vapi.lisp_enable_disable(is_enabled=1)
147 def test_lisp_basic_encap(self):
148 """Test case for basic encapsulation"""
150 self.deid_ip4_net = self.faf.net
151 self.deid_ip4 = self.faf.get_ip4()
152 self.seid_ip4 = '{}/{}'.format(self.pg0.local_ip4, 32)
153 self.rloc_ip4 = self.pg1.remote_ip4n
157 'name': 'basic ip4 over ip4',
158 'locator-sets': [VppLispLocatorSet(self, 'ls-4o4')],
160 VppLispLocator(self, self.pg1.sw_if_index, 'ls-4o4')
163 VppLocalMapping(self, self.seid_ip4, 'ls-4o4')
166 VppRemoteMapping(self, self.deid_ip4_net,
171 "addr": self.rloc_ip4
175 VppLispAdjacency(self, self.seid_ip4, self.deid_ip4_net)
179 self.test_driver = SimpleDriver(self, test_cases)
180 self.test_driver.run(self.deid_ip4)
183 if __name__ == '__main__':
184 unittest.main(testRunner=VppTestRunner)