5 from framework import VppTestCase, VppTestRunner
6 from template_bd import BridgeDomain
8 from scapy.layers.l2 import Ether
9 from scapy.layers.inet6 import IPv6, UDP
10 from scapy.layers.vxlan import VXLAN
13 from vpp_ip_route import VppIpRoute, VppRoutePath
14 from vpp_vxlan_tunnel import VppVxlanTunnel
15 from vpp_ip import INVALID_INDEX
18 class TestVxlan6(BridgeDomain, VppTestCase):
19 """ VXLAN over IPv6 Test Case """
21 def __init__(self, *args):
22 BridgeDomain.__init__(self)
23 VppTestCase.__init__(self, *args)
25 def encapsulate(self, pkt, vni):
27 Encapsulate the original payload frame by adding VXLAN header with its
28 UDP, IP and Ethernet fields
30 return (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
31 IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6) /
32 UDP(sport=self.dport, dport=self.dport, chksum=0) /
33 VXLAN(vni=vni, flags=self.flags) /
37 def ip_range(cls, s, e):
38 """ range of remote ip's """
39 tmp = cls.pg0.remote_ip6.rsplit(':', 1)[0]
40 return ("%s:%x" % (tmp, i) for i in range(s, e))
42 def encap_mcast(self, pkt, src_ip, src_mac, vni):
44 Encapsulate the original payload frame by adding VXLAN header with its
45 UDP, IP and Ethernet fields
47 return (Ether(src=src_mac, dst=self.mcast_mac) /
48 IPv6(src=src_ip, dst=self.mcast_ip6) /
49 UDP(sport=self.dport, dport=self.dport, chksum=0) /
50 VXLAN(vni=vni, flags=self.flags) /
53 def decapsulate(self, pkt):
55 Decapsulate the original payload frame by removing VXLAN header
57 # check if is set I flag
58 self.assertEqual(pkt[VXLAN].flags, int('0x8', 16))
59 return pkt[VXLAN].payload
61 # Method for checking VXLAN encapsulation.
63 def check_encapsulation(self, pkt, vni, local_only=False, mcast_pkt=False):
64 # TODO: add error messages
65 # Verify source MAC is VPP_MAC and destination MAC is MY_MAC resolved
67 self.assertEqual(pkt[Ether].src, self.pg0.local_mac)
70 self.assertEqual(pkt[Ether].dst, self.pg0.remote_mac)
72 self.assertEqual(pkt[Ether].dst, type(self).mcast_mac)
73 # Verify VXLAN tunnel source IP is VPP_IP and destination IP is MY_IP.
74 self.assertEqual(pkt[IPv6].src, self.pg0.local_ip6)
77 self.assertEqual(pkt[IPv6].dst, self.pg0.remote_ip6)
79 self.assertEqual(pkt[IPv6].dst, type(self).mcast_ip6)
80 # Verify UDP destination port is VXLAN 4789, source UDP port could be
82 self.assertEqual(pkt[UDP].dport, type(self).dport)
83 # TODO: checksum check
85 self.assertEqual(pkt[VXLAN].vni, vni)
88 def create_vxlan_flood_test_bd(cls, vni, n_ucast_tunnels):
89 # Create 10 ucast vxlan tunnels under bd
91 end = start + n_ucast_tunnels
92 for dest_ip6 in cls.ip_range(start, end):
93 # add host route so dest ip will not be resolved
94 rip = VppIpRoute(cls, dest_ip6, 128,
95 [VppRoutePath(cls.pg0.remote_ip6, INVALID_INDEX)],
98 r = VppVxlanTunnel(cls, src=cls.pg0.local_ip6,
99 dst=dest_ip6, vni=vni)
101 cls.vapi.sw_interface_set_l2_bridge(r.sw_if_index, bd_id=vni)
104 def add_mcast_tunnels_load(cls):
105 cls.add_del_mcast_tunnels_load(is_add=1)
108 def del_mcast_tunnels_load(cls):
109 cls.add_del_mcast_tunnels_load(is_add=0)
111 # Class method to start the VXLAN test case.
112 # Overrides setUpClass method in VppTestCase class.
113 # Python try..except statement is used to ensure that the tear down of
114 # the class will be executed even if exception is raised.
115 # @param cls The class pointer.
118 super(TestVxlan6, cls).setUpClass()
124 # Create 2 pg interfaces.
125 cls.create_pg_interfaces(range(4))
126 for pg in cls.pg_interfaces:
129 # Configure IPv6 addresses on VPP pg0.
132 # Resolve MAC address for VPP's IP address on pg0.
133 cls.pg0.resolve_ndp()
135 # Our Multicast address
136 cls.mcast_ip6 = 'ff0e::1'
137 cls.mcast_mac = util.mcast_ip_to_mac(cls.mcast_ip6)
139 super(TestVxlan6, cls).tearDownClass()
143 def tearDownClass(cls):
144 super(TestVxlan6, cls).tearDownClass()
147 super(TestVxlan6, self).setUp()
148 # Create VXLAN VTEP on VPP pg0, and put vxlan_tunnel0 and pg1
150 self.single_tunnel_vni = 0x12345
151 self.single_tunnel_bd = 1
152 r = VppVxlanTunnel(self, src=self.pg0.local_ip6,
153 dst=self.pg0.remote_ip6,
154 vni=self.single_tunnel_vni)
156 self.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index,
157 bd_id=self.single_tunnel_bd)
158 self.vapi.sw_interface_set_l2_bridge(
159 rx_sw_if_index=self.pg1.sw_if_index, bd_id=self.single_tunnel_bd)
161 # Setup vni 2 to test multicast flooding
162 self.n_ucast_tunnels = 10
163 self.mcast_flood_bd = 2
164 self.create_vxlan_flood_test_bd(self.mcast_flood_bd,
165 self.n_ucast_tunnels)
166 r = VppVxlanTunnel(self, src=self.pg0.local_ip6, dst=self.mcast_ip6,
167 mcast_sw_if_index=1, vni=self.mcast_flood_bd)
169 self.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index,
170 bd_id=self.mcast_flood_bd)
171 self.vapi.sw_interface_set_l2_bridge(
172 rx_sw_if_index=self.pg2.sw_if_index, bd_id=self.mcast_flood_bd)
174 # Setup vni 3 to test unicast flooding
175 self.ucast_flood_bd = 3
176 self.create_vxlan_flood_test_bd(self.ucast_flood_bd,
177 self.n_ucast_tunnels)
178 self.vapi.sw_interface_set_l2_bridge(
179 rx_sw_if_index=self.pg3.sw_if_index, bd_id=self.ucast_flood_bd)
181 # Method to define VPP actions before tear down of the test case.
182 # Overrides tearDown method in VppTestCase class.
183 # @param self The object pointer.
185 super(TestVxlan6, self).tearDown()
187 def show_commands_at_teardown(self):
188 self.logger.info(self.vapi.cli("show bridge-domain 1 detail"))
189 self.logger.info(self.vapi.cli("show bridge-domain 2 detail"))
190 self.logger.info(self.vapi.cli("show bridge-domain 3 detail"))
191 self.logger.info(self.vapi.cli("show vxlan tunnel"))
194 if __name__ == '__main__':
195 unittest.main(testRunner=VppTestRunner)