+++ /dev/null
-#!/usr/bin/env python3
-
-import socket
-from util import ip4_range, reassemble4_ether
-import unittest
-from framework import VppTestCase, VppTestRunner
-from template_bd import BridgeDomain
-
-from scapy.layers.l2 import Ether
-from scapy.packet import Raw
-from scapy.layers.inet import IP, UDP
-from scapy.layers.vxlan import VXLAN
-
-from vpp_ip_route import VppIpRoute, VppRoutePath
-from vpp_ip import INVALID_INDEX
-
-
-class TestVxlanGbp(VppTestCase):
- """ VXLAN GBP Test Case """
-
- @property
- def frame_request(self):
- """ Ethernet frame modeling a generic request """
- return (Ether(src='00:00:00:00:00:01', dst='00:00:00:00:00:02') /
- IP(src='1.2.3.4', dst='4.3.2.1') /
- UDP(sport=10000, dport=20000) /
- Raw(b'\xa5' * 100))
-
- @property
- def frame_reply(self):
- """ Ethernet frame modeling a generic reply """
- return (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' * 100))
-
- def encapsulate(self, pkt, vni):
- """
- Encapsulate the original payload frame by adding VXLAN GBP 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, gpflags=self.gpflags,
- gpid=self.sclass) / pkt)
-
- def ip_range(self, start, end):
- """ range of remote ip's """
- return ip4_range(self.pg0.remote_ip4, start, end)
-
- def decapsulate(self, pkt):
- """
- Decapsulate the original payload frame by removing VXLAN header
- """
- # check if is set G and I flag
- self.assertEqual(pkt[VXLAN].flags, int('0x88', 16))
- return pkt[VXLAN].payload
-
- # Method for checking VXLAN GBP 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 GBP 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 GBP 48879, source UDP port could
- # be arbitrary.
- self.assertEqual(pkt[UDP].dport, type(self).dport)
- # Verify UDP checksum
- self.assert_udp_checksum_valid(pkt)
- # Verify VNI
- # pkt.show()
- self.assertEqual(pkt[VXLAN].vni, vni)
- # Verify Source Class
- self.assertEqual(pkt[VXLAN].gpid, 0)
-
- @classmethod
- def create_vxlan_gbp_flood_test_bd(cls, vni, n_ucast_tunnels):
- # Create 2 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(cls.pg0.remote_ip4,
- 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 = cls.vapi.vxlan_gbp_tunnel_add_del(
- tunnel={
- 'src': cls.pg0.local_ip4,
- 'dst': dest_ip4,
- 'vni': vni,
- 'instance': INVALID_INDEX,
- 'mcast_sw_if_index': INVALID_INDEX,
- 'mode': 1,
- },
- is_add=1
- )
- cls.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index,
- bd_id=vni)
-
- # Class method to start the VXLAN GBP 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(TestVxlanGbp, cls).setUpClass()
-
- try:
- cls.dport = 48879
- cls.flags = 0x88
- cls.gpflags = 0x0
- cls.sclass = 0
-
- # 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()
-
- # Create VXLAN GBP VTEP on VPP pg0, and put vxlan_gbp_tunnel0 and
- # pg1 into BD.
- cls.single_tunnel_bd = 1
- cls.single_tunnel_vni = 0xabcde
- r = cls.vapi.vxlan_gbp_tunnel_add_del(
- tunnel={
- 'src': cls.pg0.local_ip4,
- 'dst': cls.pg0.remote_ip4,
- 'vni': cls.single_tunnel_vni,
- 'instance': INVALID_INDEX,
- 'mcast_sw_if_index': INVALID_INDEX,
- 'mode': 1,
- },
- is_add=1
- )
- 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 = 2
- # Setup vni 3 to test unicast flooding
- cls.ucast_flood_bd = 3
- cls.create_vxlan_gbp_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)
- except Exception:
- super(TestVxlanGbp, cls).tearDownClass()
- raise
-
- @classmethod
- def tearDownClass(cls):
- super(TestVxlanGbp, cls).tearDownClass()
-
- def assert_eq_pkts(self, pkt1, pkt2):
- """ Verify the Ether, IP, UDP, payload are equal in both
- packets
- """
- self.assertEqual(pkt1[Ether].src, pkt2[Ether].src)
- self.assertEqual(pkt1[Ether].dst, pkt2[Ether].dst)
- self.assertEqual(pkt1[IP].src, pkt2[IP].src)
- self.assertEqual(pkt1[IP].dst, pkt2[IP].dst)
- self.assertEqual(pkt1[UDP].sport, pkt2[UDP].sport)
- self.assertEqual(pkt1[UDP].dport, pkt2[UDP].dport)
- self.assertEqual(pkt1[Raw], pkt2[Raw])
-
- def test_decap(self):
- """ Decapsulation test
- Send encapsulated frames from pg0
- Verify receipt of decapsulated frames on pg1
- """
- encapsulated_pkt = self.encapsulate(self.frame_request,
- self.single_tunnel_vni)
-
- self.pg0.add_stream([encapsulated_pkt, ])
-
- self.pg1.enable_capture()
-
- self.pg_start()
-
- # Pick first received frame and check if it's the non-encapsulated
- # frame
- out = self.pg1.get_capture(1)
- pkt = out[0]
- self.assert_eq_pkts(pkt, self.frame_request)
-
- def test_encap(self):
- """ Encapsulation test
- Send frames from pg1
- Verify receipt of encapsulated frames on pg0
- """
- self.pg1.add_stream([self.frame_reply])
-
- self.pg0.enable_capture()
-
- self.pg_start()
-
- # Pick first received frame and check if it's correctly encapsulated.
- out = self.pg0.get_capture(1)
- pkt = out[0]
- self.check_encapsulation(pkt, self.single_tunnel_vni)
-
- payload = self.decapsulate(pkt)
- self.assert_eq_pkts(payload, self.frame_reply)
-
- def test_ucast_flood(self):
- """ Unicast flood test
- Send frames from pg3
- Verify receipt of encapsulated frames on pg0
- """
- self.pg3.add_stream([self.frame_reply])
-
- self.pg0.enable_capture()
-
- self.pg_start()
-
- # Get packet from each tunnel and assert it's correctly encapsulated.
- out = self.pg0.get_capture(self.n_ucast_tunnels)
- for pkt in out:
- self.check_encapsulation(pkt, self.ucast_flood_bd, True)
- payload = self.decapsulate(pkt)
- self.assert_eq_pkts(payload, self.frame_reply)
-
- def test_encap_big_packet(self):
- """ Encapsulation test send big frame from pg1
- Verify receipt of encapsulated frames on pg0
- """
-
- 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)
- pkt = reassemble4_ether(out)
- self.check_encapsulation(pkt, self.single_tunnel_vni)
-
- payload = self.decapsulate(pkt)
- self.assert_eq_pkts(payload, frame)
-
-# 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(TestVxlanGbp, 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 3 detail"))
- self.logger.info(self.vapi.cli("show vxlan-gbp tunnel"))
- self.logger.info(self.vapi.cli("show error"))
-
-
-if __name__ == '__main__':
- unittest.main(testRunner=VppTestRunner)
Code Review / vpp.git / blobdiff