--- /dev/null
+#!/usr/bin/env python
+
+import socket
+import unittest
+from framework import VppTestCase, VppTestRunner
+from template_bd import BridgeDomain
+
+from scapy.layers.l2 import Ether
+from scapy.layers.inet6 import IPv6, UDP
+from scapy.layers.vxlan import VXLAN
+from scapy.utils import atol
+
+
+class TestVxlan(BridgeDomain, VppTestCase):
+ """ VXLAN Test Case """
+
+ def __init__(self, *args):
+ BridgeDomain.__init__(self)
+ VppTestCase.__init__(self, *args)
+
+ def encapsulate(self, pkt, vni):
+ """
+ Encapsulate the original payload frame by adding VXLAN header with its
+ UDP, IP and Ethernet fields
+ """
+ return (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
+ IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6) /
+ UDP(sport=self.dport, dport=self.dport, chksum=0) /
+ VXLAN(vni=vni, flags=self.flags) /
+ pkt)
+
+ @classmethod
+ def ip_range(cls, s, e):
+ """ range of remote ip's """
+ tmp = cls.pg0.remote_ip6.rsplit(':', 1)[0]
+ return ("%s:%x" % (tmp, i) for i in range(s, e))
+
+ def encap_mcast(self, pkt, src_ip, src_mac, vni):
+ """
+ Encapsulate the original payload frame by adding VXLAN header with its
+ UDP, IP and Ethernet fields
+ """
+ return (Ether(src=src_mac, dst=self.mcast_mac) /
+ IPv6(src=src_ip, dst=self.mcast_ip6) /
+ UDP(sport=self.dport, dport=self.dport, chksum=0) /
+ VXLAN(vni=vni, flags=self.flags) /
+ pkt)
+
+ def decapsulate(self, pkt):
+ """
+ Decapsulate the original payload frame by removing VXLAN header
+ """
+ # check if is set I flag
+ self.assertEqual(pkt[VXLAN].flags, int('0x8', 16))
+ return pkt[VXLAN].payload
+
+ # Method for checking VXLAN encapsulation.
+ #
+ def check_encapsulation(self, pkt, vni, local_only=False, mcast_pkt=False):
+ # TODO: add error messages
+ # Verify source MAC is VPP_MAC and destination MAC is MY_MAC resolved
+ # by VPP using ARP.
+ self.assertEqual(pkt[Ether].src, self.pg0.local_mac)
+ if not local_only:
+ if not mcast_pkt:
+ self.assertEqual(pkt[Ether].dst, self.pg0.remote_mac)
+ else:
+ self.assertEqual(pkt[Ether].dst, type(self).mcast_mac)
+ # Verify VXLAN tunnel source IP is VPP_IP and destination IP is MY_IP.
+ self.assertEqual(pkt[IPv6].src, self.pg0.local_ip6)
+ if not local_only:
+ if not mcast_pkt:
+ self.assertEqual(pkt[IPv6].dst, self.pg0.remote_ip6)
+ else:
+ self.assertEqual(pkt[IPv6].dst, type(self).mcast_ip6)
+ # Verify UDP destination port is VXLAN 4789, source UDP port could be
+ # arbitrary.
+ self.assertEqual(pkt[UDP].dport, type(self).dport)
+ # TODO: checksum check
+ # Verify VNI
+ self.assertEqual(pkt[VXLAN].vni, vni)
+
+ @classmethod
+ def create_vxlan_flood_test_bd(cls, vni, n_ucast_tunnels):
+ # Create 10 ucast vxlan tunnels under bd
+ start = 10
+ end = start + n_ucast_tunnels
+ next_hop = cls.pg0.remote_ip6n
+ for dest_ip6 in cls.ip_range(start, end):
+ dest_ip6n = socket.inet_pton(socket.AF_INET6, dest_ip6)
+ # add host route so dest ip will not be resolved
+ cls.vapi.ip_add_del_route(dest_ip6n, 128, next_hop, is_ipv6=1)
+ r = cls.vapi.vxlan_add_del_tunnel(
+ is_ipv6=1,
+ src_addr=cls.pg0.local_ip6n,
+ dst_addr=dest_ip6n,
+ vni=vni)
+ cls.vapi.sw_interface_set_l2_bridge(r.sw_if_index, bd_id=vni)
+
+ @classmethod
+ def add_mcast_tunnels_load(cls):
+ cls.add_del_mcast_tunnels_load(is_add=1)
+
+ @classmethod
+ def del_mcast_tunnels_load(cls):
+ cls.add_del_mcast_tunnels_load(is_add=0)
+
+ # Class method to start the VXLAN test case.
+ # Overrides setUpClass method in VppTestCase class.
+ # Python try..except statement is used to ensure that the tear down of
+ # the class will be executed even if exception is raised.
+ # @param cls The class pointer.
+ @classmethod
+ def setUpClass(cls):
+ super(TestVxlan, cls).setUpClass()
+
+ try:
+ cls.dport = 4789
+ cls.flags = 0x8
+
+ # Create 2 pg interfaces.
+ cls.create_pg_interfaces(range(4))
+ for pg in cls.pg_interfaces:
+ pg.admin_up()
+
+ # Configure IPv4 addresses on VPP pg0.
+ cls.pg0.config_ip6()
+
+ # Resolve MAC address for VPP's IP address on pg0.
+ cls.pg0.resolve_ndp()
+
+ cls.mcast_ip6 = 'ff0e::1'
+ cls.mcast_ip6n = socket.inet_pton(socket.AF_INET6, cls.mcast_ip6)
+ cls.mcast_mac = "33:33:00:00:00:%02x" % (1)
+
+ # Create VXLAN VTEP on VPP pg0, and put vxlan_tunnel0 and pg1
+ # into BD.
+ cls.single_tunnel_bd = 1
+ r = cls.vapi.vxlan_add_del_tunnel(
+ is_ipv6=1,
+ src_addr=cls.pg0.local_ip6n,
+ dst_addr=cls.pg0.remote_ip6n,
+ vni=cls.single_tunnel_bd)
+ cls.vapi.sw_interface_set_l2_bridge(r.sw_if_index,
+ bd_id=cls.single_tunnel_bd)
+ cls.vapi.sw_interface_set_l2_bridge(cls.pg1.sw_if_index,
+ bd_id=cls.single_tunnel_bd)
+
+ # Setup vni 2 to test multicast flooding
+ cls.n_ucast_tunnels = 10
+ cls.mcast_flood_bd = 2
+ cls.create_vxlan_flood_test_bd(cls.mcast_flood_bd,
+ cls.n_ucast_tunnels)
+ r = cls.vapi.vxlan_add_del_tunnel(
+ mcast_sw_if_index=1,
+ src_addr=cls.pg0.local_ip6n,
+ dst_addr=cls.mcast_ip6n,
+ vni=cls.mcast_flood_bd, is_ipv6=1)
+ cls.vapi.sw_interface_set_l2_bridge(r.sw_if_index,
+ bd_id=cls.mcast_flood_bd)
+ cls.vapi.sw_interface_set_l2_bridge(cls.pg2.sw_if_index,
+ bd_id=cls.mcast_flood_bd)
+
+ # Setup vni 3 to test unicast flooding
+ cls.ucast_flood_bd = 3
+ cls.create_vxlan_flood_test_bd(cls.ucast_flood_bd,
+ cls.n_ucast_tunnels)
+ cls.vapi.sw_interface_set_l2_bridge(cls.pg3.sw_if_index,
+ bd_id=cls.ucast_flood_bd)
+ except Exception:
+ super(TestVxlan, cls).tearDownClass()
+ raise
+
+ # Method to define VPP actions before tear down of the test case.
+ # Overrides tearDown method in VppTestCase class.
+ # @param self The object pointer.
+ def tearDown(self):
+ super(TestVxlan, self).tearDown()
+ if not self.vpp_dead:
+ self.logger.info(self.vapi.cli("show bridge-domain 1 detail"))
+ self.logger.info(self.vapi.cli("show bridge-domain 2 detail"))
+ self.logger.info(self.vapi.cli("show bridge-domain 3 detail"))
+ self.logger.info(self.vapi.cli("show vxlan tunnel"))
+
+
+if __name__ == '__main__':
+ unittest.main(testRunner=VppTestRunner)
Code Review / vpp.git / commitdiff