+++ /dev/null
-#!/usr/bin/env python3
-
-import socket
-from util import ip4_range, reassemble4
-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.inet import IP, 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 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) /
- IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) /
- UDP(sport=self.dport, dport=self.dport, chksum=0) /
- VXLAN(vni=vni, flags=self.flags) /
- pkt)
-
- def ip_range(self, start, end):
- """ range of remote ip's """
- return ip4_range(self.pg0.remote_ip4, start, end)
-
- 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) /
- IP(src=src_ip, dst=self.mcast_ip4) /
- 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[IP].src, self.pg0.local_ip4)
- if not local_only:
- if not mcast_pkt:
- self.assertEqual(pkt[IP].dst, self.pg0.remote_ip4)
- else:
- self.assertEqual(pkt[IP].dst, type(self).mcast_ip4)
- # 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)
- # 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
- ip_range_start = 10
- ip_range_end = ip_range_start + n_ucast_tunnels
- next_hop_address = cls.pg0.remote_ip4
- for dest_ip4 in ip4_range(next_hop_address, ip_range_start,
- ip_range_end):
- # add host route so dest_ip4 will not be resolved
- rip = VppIpRoute(cls, dest_ip4, 32,
- [VppRoutePath(next_hop_address,
- INVALID_INDEX)],
- register=False)
- rip.add_vpp_config()
-
- r = VppVxlanTunnel(cls, src=cls.pg0.local_ip4,
- src_port=port, dst_port=port,
- dst=dest_ip4, vni=vni)
- r.add_vpp_config()
- cls.vapi.sw_interface_set_l2_bridge(r.sw_if_index, bd_id=vni)
-
- @classmethod
- def add_del_shared_mcast_dst_load(cls, port, is_add):
- """
- add or del tunnels sharing the same mcast dst
- to test vxlan ref_count mechanism
- """
- n_shared_dst_tunnels = 20
- vni_start = 10000
- vni_end = vni_start + n_shared_dst_tunnels
- for vni in range(vni_start, vni_end):
- r = VppVxlanTunnel(cls, src=cls.pg0.local_ip4,
- src_port=port, dst_port=port,
- dst=cls.mcast_ip4, mcast_sw_if_index=1, vni=vni)
- if is_add:
- r.add_vpp_config()
- if r.sw_if_index == 0xffffffff:
- raise ValueError("bad sw_if_index: ~0")
- else:
- r.remove_vpp_config()
-
- @classmethod
- def add_shared_mcast_dst_load(cls, port):
- cls.add_del_shared_mcast_dst_load(port=port, is_add=1)
-
- @classmethod
- def del_shared_mcast_dst_load(cls, port):
- cls.add_del_shared_mcast_dst_load(port=port, is_add=0)
-
- @classmethod
- def add_del_mcast_tunnels_load(cls, port, is_add):
- """
- add or del tunnels to test vxlan stability
- """
- n_distinct_dst_tunnels = 200
- ip_range_start = 10
- ip_range_end = ip_range_start + n_distinct_dst_tunnels
- for dest_ip4 in ip4_range(cls.mcast_ip4, ip_range_start,
- ip_range_end):
- vni = bytearray(socket.inet_pton(socket.AF_INET, dest_ip4))[3]
- r = VppVxlanTunnel(cls, src=cls.pg0.local_ip4,
- src_port=port, dst_port=port,
- dst=dest_ip4, mcast_sw_if_index=1, vni=vni)
- if is_add:
- r.add_vpp_config()
- else:
- r.remove_vpp_config()
-
- @classmethod
- def add_mcast_tunnels_load(cls, port):
- cls.add_del_mcast_tunnels_load(port=port, is_add=1)
-
- @classmethod
- def del_mcast_tunnels_load(cls, port):
- cls.add_del_mcast_tunnels_load(port=port, 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.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_ip4()
-
- # Resolve MAC address for VPP's IP address on pg0.
- cls.pg0.resolve_arp()
-
- # Our Multicast address
- cls.mcast_ip4 = '239.1.1.1'
- cls.mcast_mac = util.mcast_ip_to_mac(cls.mcast_ip4)
- except Exception:
- cls.tearDownClass()
- raise
-
- @classmethod
- def tearDownClass(cls):
- super(TestVxlan, cls).tearDownClass()
-
- def setUp(self):
- super(TestVxlan, 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_ip4,
- dst=self.pg0.remote_ip4,
- 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_ip4, dst=self.mcast_ip4,
- 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)
-
- # Add and delete mcast tunnels to check stability
- self.add_shared_mcast_dst_load(self.dport)
- self.add_mcast_tunnels_load(self.dport)
- self.del_shared_mcast_dst_load(self.dport)
- self.del_mcast_tunnels_load(self.dport)
-
- # 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)
-
- def encap_big_packet(self):
- self.vapi.sw_interface_set_mtu(self.pg0.sw_if_index, [1500, 0, 0, 0])
-
- 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' * 1450))
-
- self.pg1.add_stream([frame])
-
- self.pg0.enable_capture()
-
- self.pg_start()
-
- # Pick first received frame and check if it's correctly encapsulated.
- out = self.pg0.get_capture(2)
- ether = out[0]
- pkt = reassemble4(out)
- pkt = ether / pkt
- self.check_encapsulation(pkt, self.single_tunnel_vni)
-
- payload = self.decapsulate(pkt)
- # TODO: Scapy bug?
- # self.assert_eq_pkts(payload, frame)
-
- """
- Tests with default port (4789)
- """
- def test_decap(self):
- """ Decapsulation test
- from BridgeDoman
- """
- self.createVxLANInterfaces()
- super(TestVxlan, self).test_decap()
-
- def test_encap(self):
- """ Encapsulation test
- from BridgeDoman
- """
- self.createVxLANInterfaces()
- super(TestVxlan, self).test_encap()
-
- def test_encap_big_packet(self):
- """ Encapsulation test send big frame from pg1
- Verify receipt of encapsulated frames on pg0
- """
- self.createVxLANInterfaces()
- self.encap_big_packet()
-
- def test_ucast_flood(self):
- """ Unicast flood test
- from BridgeDoman
- """
- self.createVxLANInterfaces()
- super(TestVxlan, self).test_ucast_flood()
-
- def test_mcast_flood(self):
- """ Multicast flood test
- from BridgeDoman
- """
- self.createVxLANInterfaces()
- super(TestVxlan, self).test_mcast_flood()
-
- def test_mcast_rcv(self):
- """ Multicast receive test
- from BridgeDoman
- """
- self.createVxLANInterfaces()
- super(TestVxlan, self).test_mcast_rcv()
-
- """
- Tests with custom port
- """
- def test_decap_custom_port(self):
- """ Decapsulation test custom port
- from BridgeDoman
- """
- self.createVxLANInterfaces(1111)
- super(TestVxlan, self).test_decap()
-
- def test_encap_custom_port(self):
- """ Encapsulation test custom port
- from BridgeDoman
- """
- self.createVxLANInterfaces(1111)
- super(TestVxlan, self).test_encap()
-
- def test_ucast_flood_custom_port(self):
- """ Unicast flood test custom port
- from BridgeDoman
- """
- self.createVxLANInterfaces(1111)
- super(TestVxlan, self).test_ucast_flood()
-
- def test_mcast_flood_custom_port(self):
- """ Multicast flood test custom port
- from BridgeDoman
- """
- self.createVxLANInterfaces(1111)
- super(TestVxlan, self).test_mcast_flood()
-
- def test_mcast_rcv_custom_port(self):
- """ Multicast receive test custom port
- from BridgeDoman
- """
- self.createVxLANInterfaces(1111)
- super(TestVxlan, self).test_mcast_rcv()
-
- # 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()
-
- 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"))
-
-
-class TestVxlan2(VppTestCase):
- """ VXLAN Test Case """
- def setUp(self):
- super(TestVxlan2, self).setUp()
-
- # Create 2 pg interfaces.
- self.create_pg_interfaces(range(4))
- for pg in self.pg_interfaces:
- pg.admin_up()
-
- # Configure IPv4 addresses on VPP pg0.
- self.pg0.config_ip4()
- self.pg0.resolve_arp()
-
- def tearDown(self):
- super(TestVxlan2, self).tearDown()
-
- def test_xconnect(self):
- """ VXLAN source address not local """
-
- #
- # test the broken configuration of a VXLAN tunnel whose
- # source address is not local ot the box. packets sent
- # through the tunnel should be dropped
- #
- t = VppVxlanTunnel(self,
- src="10.0.0.5",
- dst=self.pg0.local_ip4,
- vni=1000)
- t.add_vpp_config()
- t.admin_up()
-
- self.vapi.sw_interface_set_l2_xconnect(t.sw_if_index,
- self.pg1.sw_if_index,
- enable=1)
- self.vapi.sw_interface_set_l2_xconnect(self.pg1.sw_if_index,
- t.sw_if_index,
- enable=1)
-
- p = (Ether(src="00:11:22:33:44:55",
- dst="00:00:00:11:22:33") /
- IP(src="4.3.2.1", dst="1.2.3.4") /
- UDP(sport=20000, dport=10000) /
- Raw(b'\xa5' * 1450))
-
- rx = self.send_and_assert_no_replies(self.pg1, [p])
-
-
-if __name__ == '__main__':
- unittest.main(testRunner=VppTestRunner)
Code Review / vpp.git / blobdiff