-#!/usr/bin/env python
+#!/usr/bin/env python3
import socket
-from util import ip4n_range, ip4_range, reassemble4
+from util import ip4_range, reassemble4
import unittest
from framework import VppTestCase, VppTestRunner
from template_bd import BridgeDomain
-from scapy.layers.l2 import Ether, Raw
+from scapy.layers.l2 import Ether
+from scapy.layers.l2 import ARP
+from scapy.packet import Raw, bind_layers
from scapy.layers.inet import IP, UDP
from scapy.layers.vxlan import VXLAN
-from scapy.utils import atol
+
+import util
+from vpp_ip_route import VppIpRoute, VppRoutePath
+from vpp_vxlan_tunnel import VppVxlanTunnel
+from vpp_ip import INVALID_INDEX
+from vpp_neighbor import VppNeighbor
class TestVxlan(BridgeDomain, VppTestCase):
- """ VXLAN Test Case """
+ """VXLAN Test Case"""
def __init__(self, *args):
BridgeDomain.__init__(self)
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)
+ 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 """
+ """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)
+ 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))
+ self.assertEqual(pkt[VXLAN].flags, int("0x8", 16))
return pkt[VXLAN].payload
# Method for checking VXLAN encapsulation.
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, type(self).dport)
- # TODO: checksum check
+ 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):
+ 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_ip4n
- for dest_ip4n in ip4n_range(next_hop_address, ip_range_start,
- ip_range_end):
- # add host route so dest_ip4n will not be resolved
- cls.vapi.ip_add_del_route(dst_address=dest_ip4n,
- dst_address_length=32,
- next_hop_address=next_hop_address)
- r = cls.vapi.vxlan_add_del_tunnel(src_address=cls.pg0.local_ip4n,
- dst_address=dest_ip4n, vni=vni)
- cls.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index,
- bd_id=vni)
+ 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, is_add):
+ 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
vni_start = 10000
vni_end = vni_start + n_shared_dst_tunnels
for vni in range(vni_start, vni_end):
- r = cls.vapi.vxlan_add_del_tunnel(src_address=cls.pg0.local_ip4n,
- dst_address=cls.mcast_ip4n,
- mcast_sw_if_index=1,
- is_add=is_add, vni=vni)
- if r.sw_if_index == 0xffffffff:
- raise "bad sw_if_index"
+ 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):
- cls.add_del_shared_mcast_dst_load(is_add=1)
+ 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):
- cls.add_del_shared_mcast_dst_load(is_add=0)
+ 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, is_add):
+ 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_ip4n in ip4n_range(cls.mcast_ip4n, ip_range_start,
- ip_range_end):
- vni = bytearray(dest_ip4n)[3]
- cls.vapi.vxlan_add_del_tunnel(src_address=cls.pg0.local_ip4n,
- dst_address=dest_ip4n,
- mcast_sw_if_index=1, is_add=is_add,
- vni=vni)
+ 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):
- cls.add_del_mcast_tunnels_load(is_add=1)
+ 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):
- cls.add_del_mcast_tunnels_load(is_add=0)
+ 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.
super(TestVxlan, cls).setUpClass()
try:
- cls.dport = 4789
cls.flags = 0x8
# Create 2 pg interfaces.
cls.pg0.resolve_arp()
# Our Multicast address
- cls.mcast_ip4 = '239.1.1.1'
- cls.mcast_ip4n = socket.inet_pton(socket.AF_INET, cls.mcast_ip4)
- iplong = atol(cls.mcast_ip4)
- cls.mcast_mac = "01:00:5e:%02x:%02x:%02x" % (
- (iplong >> 16) & 0x7F, (iplong >> 8) & 0xFF, iplong & 0xFF)
-
- # 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(src_address=cls.pg0.local_ip4n,
- dst_address=cls.pg0.remote_ip4n,
- vni=cls.single_tunnel_bd)
- cls.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index,
- bd_id=cls.single_tunnel_bd)
- cls.vapi.sw_interface_set_l2_bridge(
- rx_sw_if_index=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(src_address=cls.pg0.local_ip4n,
- dst_address=cls.mcast_ip4n,
- mcast_sw_if_index=1,
- vni=cls.mcast_flood_bd)
- cls.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index,
- bd_id=cls.mcast_flood_bd)
- cls.vapi.sw_interface_set_l2_bridge(
- rx_sw_if_index=cls.pg2.sw_if_index, bd_id=cls.mcast_flood_bd)
-
- # Add and delete mcast tunnels to check stability
- cls.add_shared_mcast_dst_load()
- cls.add_mcast_tunnels_load()
- cls.del_shared_mcast_dst_load()
- cls.del_mcast_tunnels_load()
-
- # 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(
- rx_sw_if_index=cls.pg3.sw_if_index, bd_id=cls.ucast_flood_bd)
+ cls.mcast_ip4 = "239.1.1.1"
+ cls.mcast_mac = util.mcast_ip_to_mac(cls.mcast_ip4)
except Exception:
- super(TestVxlan, cls).tearDownClass()
+ cls.tearDownClass()
raise
- def test_encap_big_packet(self):
- """ Encapsulation test send big frame from pg1
- Verify receipt of encapsulated frames on pg0
- """
-
+ @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('\xa5' * 1450))
+ 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])
ether = out[0]
pkt = reassemble4(out)
pkt = ether / pkt
- self.check_encapsulation(pkt, self.single_tunnel_bd)
+ 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()
- 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"))
+ 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()
-if __name__ == '__main__':
+ # 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])
+
+
+class TestVxlanL2Mode(VppTestCase):
+ """VXLAN Test Case"""
+
+ def setUp(self):
+ super(TestVxlanL2Mode, self).setUp()
+
+ # Create 2 pg interfaces.
+ self.create_pg_interfaces(range(2))
+ for pg in self.pg_interfaces:
+ pg.admin_up()
+
+ # Configure IPv4 addresses on VPP pg0.
+ self.pg0.config_ip4()
+ self.pg0.resolve_arp()
+
+ # Configure IPv4 addresses on VPP pg1.
+ self.pg1.config_ip4()
+
+ def tearDown(self):
+ super(TestVxlanL2Mode, self).tearDown()
+
+ def test_l2_mode(self):
+ """VXLAN L2 mode"""
+ t = VppVxlanTunnel(
+ self, src=self.pg0.local_ip4, dst=self.pg0.remote_ip4, vni=1000, is_l3=False
+ )
+ t.add_vpp_config()
+ t.config_ip4()
+ t.admin_up()
+
+ dstIP = t.local_ip4[:-1] + "2"
+
+ # Create a packet to send
+ p = (
+ Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac)
+ / IP(src=self.pg1.local_ip4, dst=dstIP)
+ / UDP(sport=555, dport=556)
+ / Raw(b"\x00" * 80)
+ )
+
+ # Expect ARP request
+ rx = self.send_and_expect(self.pg1, [p], self.pg0)
+ for p in rx:
+ self.assertEqual(p[Ether].dst, self.pg0.remote_mac)
+ self.assertEqual(p[Ether].src, self.pg0.local_mac)
+ self.assertEqual(p[ARP].op, 1)
+ self.assertEqual(p[ARP].pdst, dstIP)
+
+ # Resolve ARP
+ VppNeighbor(self, t.sw_if_index, self.pg1.remote_mac, dstIP).add_vpp_config()
+
+ # Send packets
+ NUM_PKTS = 128
+ rx = self.send_and_expect(self.pg1, p * NUM_PKTS, self.pg0)
+ self.assertEqual(NUM_PKTS, len(rx))
+
+
+if __name__ == "__main__":
unittest.main(testRunner=VppTestRunner)
Code Review / vpp.git / blobdiff