diff options
Diffstat (limited to 'src/vnet/vxlan/test/test_vxlan6.py')
| -rw-r--r-- | src/vnet/vxlan/test/test_vxlan6.py | 316 |
1 files changed, 316 insertions, 0 deletions
diff --git a/src/vnet/vxlan/test/test_vxlan6.py b/src/vnet/vxlan/test/test_vxlan6.py new file mode 100644 index 00000000000..123cce9b7ba --- /dev/null +++ b/src/vnet/vxlan/test/test_vxlan6.py @@ -0,0 +1,316 @@ +#!/usr/bin/env python3 + +import socket +import unittest +from framework import VppTestCase, VppTestRunner +from template_bd import BridgeDomain + +from scapy.layers.l2 import Ether +from scapy.packet import Raw, bind_layers +from scapy.layers.inet6 import IP, IPv6, UDP +from scapy.layers.vxlan import VXLAN + +import util +from vpp_ip_route import VppIpRoute, VppRoutePath +from vpp_vxlan_tunnel import VppVxlanTunnel +from vpp_ip import INVALID_INDEX + + +class TestVxlan6(BridgeDomain, VppTestCase): + """ VXLAN over IPv6 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, self.dport) + # Verify UDP checksum + self.assert_udp_checksum_valid(pkt, ignore_zero_checksum=False) + # Verify VNI + self.assertEqual(pkt[VXLAN].vni, vni) + + @classmethod + def create_vxlan_flood_test_bd(cls, vni, n_ucast_tunnels, port): + # Create 10 ucast vxlan tunnels under bd + start = 10 + end = start + n_ucast_tunnels + for dest_ip6 in cls.ip_range(start, end): + # add host route so dest ip will not be resolved + rip = VppIpRoute(cls, dest_ip6, 128, + [VppRoutePath(cls.pg0.remote_ip6, INVALID_INDEX)], + register=False) + rip.add_vpp_config() + r = VppVxlanTunnel(cls, src=cls.pg0.local_ip6, + src_port=port, dst_port=port, + dst=dest_ip6, vni=vni) + r.add_vpp_config() + 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(TestVxlan6, cls).setUpClass() + + try: + cls.flags = 0x8 + + # Create 2 pg interfaces. + cls.create_pg_interfaces(range(4)) + for pg in cls.pg_interfaces: + pg.admin_up() + + # Configure IPv6 addresses on VPP pg0. + cls.pg0.config_ip6() + + # Resolve MAC address for VPP's IP address on pg0. + cls.pg0.resolve_ndp() + + # Our Multicast address + cls.mcast_ip6 = 'ff0e::1' + cls.mcast_mac = util.mcast_ip_to_mac(cls.mcast_ip6) + except Exception: + super(TestVxlan6, cls).tearDownClass() + raise + + @classmethod + def tearDownClass(cls): + super(TestVxlan6, cls).tearDownClass() + + def setUp(self): + super(TestVxlan6, self).setUp() + + def createVxLANInterfaces(self, port=4789): + # Create VXLAN VTEP on VPP pg0, and put vxlan_tunnel0 and pg1 + # into BD. + self.dport = port + + self.single_tunnel_vni = 0x12345 + self.single_tunnel_bd = 1 + r = VppVxlanTunnel(self, src=self.pg0.local_ip6, + dst=self.pg0.remote_ip6, + src_port=self.dport, dst_port=self.dport, + vni=self.single_tunnel_vni) + r.add_vpp_config() + self.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index, + bd_id=self.single_tunnel_bd) + self.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=self.pg1.sw_if_index, bd_id=self.single_tunnel_bd) + + # Setup vni 2 to test multicast flooding + self.n_ucast_tunnels = 10 + self.mcast_flood_bd = 2 + self.create_vxlan_flood_test_bd(self.mcast_flood_bd, + self.n_ucast_tunnels, + self.dport) + r = VppVxlanTunnel(self, src=self.pg0.local_ip6, dst=self.mcast_ip6, + src_port=self.dport, dst_port=self.dport, + mcast_sw_if_index=1, vni=self.mcast_flood_bd) + r.add_vpp_config() + self.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index, + bd_id=self.mcast_flood_bd) + self.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=self.pg2.sw_if_index, bd_id=self.mcast_flood_bd) + + # Setup vni 3 to test unicast flooding + self.ucast_flood_bd = 3 + self.create_vxlan_flood_test_bd(self.ucast_flood_bd, + self.n_ucast_tunnels, + self.dport) + self.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=self.pg3.sw_if_index, bd_id=self.ucast_flood_bd) + + # Set scapy listen custom port for VxLAN + bind_layers(UDP, VXLAN, dport=self.dport) + + # 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(TestVxlan6, self).tearDown() + + def show_commands_at_teardown(self): + 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")) + + def encap_fragmented_packet(self): + frame = (Ether(src='00:00:00:00:00:02', dst='00:00:00:00:00:01') / + IP(src='4.3.2.1', dst='1.2.3.4') / + UDP(sport=20000, dport=10000) / + Raw(b'\xa5' * 1000)) + + frags = util.fragment_rfc791(frame, 400) + + self.pg1.add_stream(frags) + + self.pg0.enable_capture() + + self.pg_start() + + out = self.pg0.get_capture(3) + + payload = [] + for pkt in out: + payload.append(self.decapsulate(pkt)) + self.check_encapsulation(pkt, self.single_tunnel_vni) + + reassembled = util.reassemble4(payload) + + self.assertEqual(Ether(raw(frame))[IP], reassembled[IP]) + + """ + Tests with default port (4789) + """ + def test_decap(self): + """ Decapsulation test + from BridgeDoman + """ + self.createVxLANInterfaces() + super(TestVxlan6, self).test_decap() + + def test_encap(self): + """ Encapsulation test + from BridgeDoman + """ + self.createVxLANInterfaces() + super(TestVxlan6, self).test_encap() + + def test_encap_fragmented_packet(self): + """ Encapsulation test send fragments from pg1 + Verify receipt of encapsulated frames on pg0 + """ + self.createVxLANInterfaces() + self.encap_fragmented_packet() + + def test_ucast_flood(self): + """ Unicast flood test + from BridgeDoman + """ + self.createVxLANInterfaces() + super(TestVxlan6, self).test_ucast_flood() + + def test_mcast_flood(self): + """ Multicast flood test + from BridgeDoman + """ + self.createVxLANInterfaces() + super(TestVxlan6, self).test_mcast_flood() + + def test_mcast_rcv(self): + """ Multicast receive test + from BridgeDoman + """ + self.createVxLANInterfaces() + super(TestVxlan6, self).test_mcast_rcv() + + """ + Tests with custom port + """ + def test_decap_custom_port(self): + """ Decapsulation test custom port + from BridgeDoman + """ + self.createVxLANInterfaces(1111) + super(TestVxlan6, self).test_decap() + + def test_encap_custom_port(self): + """ Encapsulation test custom port + from BridgeDoman + """ + self.createVxLANInterfaces(1111) + super(TestVxlan6, self).test_encap() + + def test_ucast_flood_custom_port(self): + """ Unicast flood test custom port + from BridgeDoman + """ + self.createVxLANInterfaces(1111) + super(TestVxlan6, self).test_ucast_flood() + + def test_mcast_flood_custom_port(self): + """ Multicast flood test custom port + from BridgeDoman + """ + self.createVxLANInterfaces(1111) + super(TestVxlan6, self).test_mcast_flood() + + def test_mcast_rcv_custom_port(self): + """ Multicast receive test custom port + from BridgeDoman + """ + self.createVxLANInterfaces(1111) + super(TestVxlan6, self).test_mcast_rcv() + + +if __name__ == '__main__': + unittest.main(testRunner=VppTestRunner) |