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
11 from scapy.utils import atol
12 from vpp_ip_route import VppIpRoute, VppRoutePath
13 from vpp_ip import INVALID_INDEX
16 class TestVxlan6(BridgeDomain, VppTestCase):
17 """ VXLAN over IPv6 Test Case """
19 def __init__(self, *args):
20 BridgeDomain.__init__(self)
21 VppTestCase.__init__(self, *args)
23 def encapsulate(self, pkt, vni):
25 Encapsulate the original payload frame by adding VXLAN header with its
26 UDP, IP and Ethernet fields
28 return (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
29 IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6) /
30 UDP(sport=self.dport, dport=self.dport, chksum=0) /
31 VXLAN(vni=vni, flags=self.flags) /
35 def ip_range(cls, s, e):
36 """ range of remote ip's """
37 tmp = cls.pg0.remote_ip6.rsplit(':', 1)[0]
38 return ("%s:%x" % (tmp, i) for i in range(s, e))
40 def encap_mcast(self, pkt, src_ip, src_mac, vni):
42 Encapsulate the original payload frame by adding VXLAN header with its
43 UDP, IP and Ethernet fields
45 return (Ether(src=src_mac, dst=self.mcast_mac) /
46 IPv6(src=src_ip, dst=self.mcast_ip6) /
47 UDP(sport=self.dport, dport=self.dport, chksum=0) /
48 VXLAN(vni=vni, flags=self.flags) /
51 def decapsulate(self, pkt):
53 Decapsulate the original payload frame by removing VXLAN header
55 # check if is set I flag
56 self.assertEqual(pkt[VXLAN].flags, int('0x8', 16))
57 return pkt[VXLAN].payload
59 # Method for checking VXLAN encapsulation.
61 def check_encapsulation(self, pkt, vni, local_only=False, mcast_pkt=False):
62 # TODO: add error messages
63 # Verify source MAC is VPP_MAC and destination MAC is MY_MAC resolved
65 self.assertEqual(pkt[Ether].src, self.pg0.local_mac)
68 self.assertEqual(pkt[Ether].dst, self.pg0.remote_mac)
70 self.assertEqual(pkt[Ether].dst, type(self).mcast_mac)
71 # Verify VXLAN tunnel source IP is VPP_IP and destination IP is MY_IP.
72 self.assertEqual(pkt[IPv6].src, self.pg0.local_ip6)
75 self.assertEqual(pkt[IPv6].dst, self.pg0.remote_ip6)
77 self.assertEqual(pkt[IPv6].dst, type(self).mcast_ip6)
78 # Verify UDP destination port is VXLAN 4789, source UDP port could be
80 self.assertEqual(pkt[UDP].dport, type(self).dport)
81 # TODO: checksum check
83 self.assertEqual(pkt[VXLAN].vni, vni)
86 def create_vxlan_flood_test_bd(cls, vni, n_ucast_tunnels):
87 # Create 10 ucast vxlan tunnels under bd
89 end = start + n_ucast_tunnels
90 for dest_ip6 in cls.ip_range(start, end):
91 dest_ip6n = socket.inet_pton(socket.AF_INET6, dest_ip6)
92 # add host route so dest ip will not be resolved
93 rip = VppIpRoute(cls, dest_ip6, 128,
94 [VppRoutePath(cls.pg0.remote_ip6, INVALID_INDEX)],
97 r = cls.vapi.vxlan_add_del_tunnel(src_address=cls.pg0.local_ip6n,
98 dst_address=dest_ip6n, is_ipv6=1,
100 cls.vapi.sw_interface_set_l2_bridge(r.sw_if_index, bd_id=vni)
103 def add_mcast_tunnels_load(cls):
104 cls.add_del_mcast_tunnels_load(is_add=1)
107 def del_mcast_tunnels_load(cls):
108 cls.add_del_mcast_tunnels_load(is_add=0)
110 # Class method to start the VXLAN test case.
111 # Overrides setUpClass method in VppTestCase class.
112 # Python try..except statement is used to ensure that the tear down of
113 # the class will be executed even if exception is raised.
114 # @param cls The class pointer.
117 super(TestVxlan6, cls).setUpClass()
123 # Create 2 pg interfaces.
124 cls.create_pg_interfaces(range(4))
125 for pg in cls.pg_interfaces:
128 # Configure IPv4 addresses on VPP pg0.
131 # Resolve MAC address for VPP's IP address on pg0.
132 cls.pg0.resolve_ndp()
134 cls.mcast_ip6 = 'ff0e::1'
135 cls.mcast_ip6n = socket.inet_pton(socket.AF_INET6, cls.mcast_ip6)
136 cls.mcast_mac = "33:33:00:00:00:%02x" % (1)
138 # Create VXLAN VTEP on VPP pg0, and put vxlan_tunnel0 and pg1
140 cls.single_tunnel_bd = 1
141 r = cls.vapi.vxlan_add_del_tunnel(src_address=cls.pg0.local_ip6n,
142 dst_address=cls.pg0.remote_ip6n,
144 vni=cls.single_tunnel_bd)
145 cls.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index,
146 bd_id=cls.single_tunnel_bd)
147 cls.vapi.sw_interface_set_l2_bridge(
148 rx_sw_if_index=cls.pg1.sw_if_index, bd_id=cls.single_tunnel_bd)
150 # Setup vni 2 to test multicast flooding
151 cls.n_ucast_tunnels = 10
152 cls.mcast_flood_bd = 2
153 cls.create_vxlan_flood_test_bd(cls.mcast_flood_bd,
155 r = cls.vapi.vxlan_add_del_tunnel(src_address=cls.pg0.local_ip6n,
156 dst_address=cls.mcast_ip6n,
157 mcast_sw_if_index=1, is_ipv6=1,
158 vni=cls.mcast_flood_bd)
159 cls.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index,
160 bd_id=cls.mcast_flood_bd)
161 cls.vapi.sw_interface_set_l2_bridge(
162 rx_sw_if_index=cls.pg2.sw_if_index, bd_id=cls.mcast_flood_bd)
164 # Setup vni 3 to test unicast flooding
165 cls.ucast_flood_bd = 3
166 cls.create_vxlan_flood_test_bd(cls.ucast_flood_bd,
168 cls.vapi.sw_interface_set_l2_bridge(
169 rx_sw_if_index=cls.pg3.sw_if_index, bd_id=cls.ucast_flood_bd)
171 super(TestVxlan6, cls).tearDownClass()
175 def tearDownClass(cls):
176 super(TestVxlan6, cls).tearDownClass()
178 # Method to define VPP actions before tear down of the test case.
179 # Overrides tearDown method in VppTestCase class.
180 # @param self The object pointer.
182 super(TestVxlan6, self).tearDown()
184 def show_commands_at_teardown(self):
185 self.logger.info(self.vapi.cli("show bridge-domain 1 detail"))
186 self.logger.info(self.vapi.cli("show bridge-domain 2 detail"))
187 self.logger.info(self.vapi.cli("show bridge-domain 3 detail"))
188 self.logger.info(self.vapi.cli("show vxlan tunnel"))
191 if __name__ == '__main__':
192 unittest.main(testRunner=VppTestRunner)