7 from scapy.fields import BitField, ByteField, FlagsField, IntField
8 from scapy.packet import bind_layers, Packet, Raw
9 from scapy.layers.inet import IP, UDP, Ether
10 from scapy.layers.inet6 import IPv6
12 from framework import VppTestCase, VppTestRunner
14 from util import ppp, ForeignAddressFactory
16 # From py_lispnetworking.lisp.py: # GNU General Public License v2.0
19 class LISP_GPE_Header(Packet):
20 name = "LISP GPE Header"
22 FlagsField("gpe_flags", None, 6, ["N", "L", "E", "V", "I", "P"]),
23 BitField("reserved", 0, 18),
24 ByteField("next_proto", 0),
27 bind_layers(UDP, LISP_GPE_Header, dport=4341)
28 bind_layers(UDP, LISP_GPE_Header, sport=4341)
29 bind_layers(LISP_GPE_Header, IP, next_proto=1)
30 bind_layers(LISP_GPE_Header, IPv6, next_proto=2)
31 bind_layers(LISP_GPE_Header, Ether, next_proto=3)
34 @six.add_metaclass(abc.ABCMeta)
37 config_order = ['locator-sets',
43 """ Basic class for data driven testing """
44 def __init__(self, test, test_cases):
45 self._test_cases = test_cases
50 return self._test_cases
56 def create_packet(self, src_if, dst_if, deid, payload=''):
63 packet = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
64 IP(src=src_if.remote_ip4, dst=deid) /
70 """ testing procedure """
74 class SimpleDriver(Driver):
75 """ Implements simple test procedure """
76 def __init__(self, test, test_cases):
77 super(SimpleDriver, self).__init__(test, test_cases)
79 def verify_capture(self, src_loc, dst_loc, capture):
81 Verify captured packet
83 :param src_loc: source locator address
84 :param dst_loc: destination locator address
85 :param capture: list of captured packets
87 self.test.assertEqual(len(capture), 1, "Unexpected number of "
88 "packets! Expected 1 but {} received"
89 .format(len(capture)))
93 # assert the values match
94 self.test.assertEqual(ip_hdr.src, src_loc, "IP source address")
95 self.test.assertEqual(ip_hdr.dst, dst_loc,
96 "IP destination address")
97 gpe_hdr = packet[LISP_GPE_Header]
98 self.test.assertEqual(gpe_hdr.next_proto, 1,
99 "next_proto is not ipv4!")
101 self.test.assertEqual(ih.src, self.test.pg0.remote_ip4,
102 "unexpected source EID!")
103 self.test.assertEqual(ih.dst, self.test.deid_ip4,
104 "unexpected dest EID!")
106 self.test.logger.error(ppp("Unexpected or invalid packet:",
110 def configure_tc(self, tc):
111 for config_item in self.config_order:
112 for vpp_object in tc[config_item]:
113 vpp_object.add_vpp_config()
116 """ Send traffic for each test case and verify that it
118 for tc in enumerate(self.test_cases):
119 self.test.logger.info('Running {}'.format(tc[1]['name']))
120 self.configure_tc(tc[1])
122 packet = self.create_packet(self.test.pg0, self.test.pg1, dest,
124 self.test.pg0.add_stream(packet)
125 self.test.pg0.enable_capture()
126 self.test.pg1.enable_capture()
128 capture = self.test.pg1.get_capture(1)
129 self.verify_capture(self.test.pg1.local_ip4,
130 self.test.pg1.remote_ip4, capture)
131 self.test.pg0.assert_nothing_captured()
134 class TestLisp(VppTestCase):
135 """ Basic LISP test """
139 super(TestLisp, cls).setUpClass()
140 cls.faf = ForeignAddressFactory()
141 cls.create_pg_interfaces(range(2)) # create pg0 and pg1
142 for i in cls.pg_interfaces:
143 i.admin_up() # put the interface upsrc_if
144 i.config_ip4() # configure IPv4 address on the interface
145 i.resolve_arp() # resolve ARP, so that we know VPP MAC
148 super(TestLisp, self).setUp()
149 self.vapi.lisp_enable_disable(is_enabled=1)
151 def test_lisp_basic_encap(self):
152 """Test case for basic encapsulation"""
154 self.deid_ip4_net = self.faf.net
155 self.deid_ip4 = self.faf.get_ip4()
156 self.seid_ip4 = '{}/{}'.format(self.pg0.local_ip4, 32)
157 self.rloc_ip4 = self.pg1.remote_ip4n
161 'name': 'basic ip4 over ip4',
162 'locator-sets': [VppLispLocatorSet(self, 'ls-4o4')],
164 VppLispLocator(self, self.pg1.sw_if_index, 'ls-4o4')
167 VppLocalMapping(self, self.seid_ip4, 'ls-4o4')
170 VppRemoteMapping(self, self.deid_ip4_net,
175 "addr": self.rloc_ip4
179 VppLispAdjacency(self, self.seid_ip4, self.deid_ip4_net)
183 self.test_driver = SimpleDriver(self, test_cases)
184 self.test_driver.run(self.deid_ip4)
187 if __name__ == '__main__':
188 unittest.main(testRunner=VppTestRunner)