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Diffstat (limited to 'src/vnet/vxlan/test/test_vxlan.py')
| -rw-r--r-- | src/vnet/vxlan/test/test_vxlan.py | 421 |
1 files changed, 0 insertions, 421 deletions
diff --git a/src/vnet/vxlan/test/test_vxlan.py b/src/vnet/vxlan/test/test_vxlan.py deleted file mode 100644 index 028275ccedf..00000000000 --- a/src/vnet/vxlan/test/test_vxlan.py +++ /dev/null @@ -1,421 +0,0 @@ -#!/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) |