X-Git-Url: https://gerrit.fd.io/r/gitweb?p=vpp.git;a=blobdiff_plain;f=test%2Ftest_vxlan.py;h=910611c63cc18f67898546737849865daa20f333;hp=9dccaf50fb1702ad4ae5e03bbb85732608ede94a;hb=7c0eb56f4;hpb=d81da8c0b5094de6635ad9575a2a2bb6f44070dc diff --git a/test/test_vxlan.py b/test/test_vxlan.py index 9dccaf50fb1..910611c63cc 100644 --- a/test/test_vxlan.py +++ b/test/test_vxlan.py @@ -1,15 +1,19 @@ -#!/usr/bin/env python +#!/usr/bin/env python3 import socket -from util import ip4n_range +from util import ip4n_range, 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 from scapy.layers.inet import IP, UDP from scapy.layers.vxlan import VXLAN from scapy.utils import atol +from vpp_ip_route import VppIpRoute, VppRoutePath +from vpp_vxlan_tunnel import VppVxlanTunnel +from vpp_ip import INVALID_INDEX class TestVxlan(BridgeDomain, VppTestCase): @@ -30,6 +34,10 @@ class TestVxlan(BridgeDomain, VppTestCase): 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 @@ -51,17 +59,23 @@ class TestVxlan(BridgeDomain, VppTestCase): # Method for checking VXLAN encapsulation. # - def check_encapsulation(self, pkt, vni, local_only=False): + 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: - self.assertEqual(pkt[Ether].dst, self.pg0.remote_mac) + 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: - self.assertEqual(pkt[IP].dst, self.pg0.remote_ip4) + 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, type(self).dport) @@ -74,38 +88,74 @@ class TestVxlan(BridgeDomain, VppTestCase): # 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): + 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_ip4n will not be resolved - cls.vapi.ip_add_del_route(dest_ip4n, 32, next_hop_address) - r = cls.vapi.vxlan_add_del_tunnel( - src_addr=cls.pg0.local_ip4n, - dst_addr=dest_ip4n, - vni=vni) + rip = VppIpRoute(cls, dest_ip4, 32, + [VppRoutePath(next_hop_address, + INVALID_INDEX)], + register=False) + rip.add_vpp_config() + dest_ip4n = socket.inet_pton(socket.AF_INET, dest_ip4) + + r = VppVxlanTunnel(cls, src=cls.pg0.local_ip4, + 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_mcast_load(cls, is_add): + def add_del_shared_mcast_dst_load(cls, 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, + 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) + + @classmethod + def del_shared_mcast_dst_load(cls): + cls.add_del_shared_mcast_dst_load(is_add=0) + + @classmethod + def add_del_mcast_tunnels_load(cls, is_add): + """ + add or del tunnels to test vxlan stability + """ + n_distinct_dst_tunnels = 200 ip_range_start = 10 - ip_range_end = 210 - 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_addr=cls.pg0.local_ip4n, - dst_addr=dest_ip4n, - mcast_sw_if_index=1, - vni=vni, - is_add=is_add) + 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, + 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_load(cls): - cls.add_del_mcast_load(is_add=1) + def add_mcast_tunnels_load(cls): + cls.add_del_mcast_tunnels_load(is_add=1) @classmethod - def del_mcast_load(cls): - cls.add_del_mcast_load(is_add=0) + 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. @@ -138,57 +188,99 @@ class TestVxlan(BridgeDomain, VppTestCase): 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_addr=cls.pg0.local_ip4n, - dst_addr=cls.pg0.remote_ip4n, - vni=cls.single_tunnel_bd) - cls.vapi.sw_interface_set_l2_bridge(r.sw_if_index, - bd_id=cls.single_tunnel_bd) - cls.vapi.sw_interface_set_l2_bridge(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_addr=cls.pg0.local_ip4n, - dst_addr=cls.mcast_ip4n, - mcast_sw_if_index=1, - vni=cls.mcast_flood_bd) - cls.vapi.sw_interface_set_l2_bridge(r.sw_if_index, - bd_id=cls.mcast_flood_bd) - cls.vapi.sw_interface_set_l2_bridge(cls.pg2.sw_if_index, - bd_id=cls.mcast_flood_bd) - - # Add and delete mcast tunnels to check stability - cls.add_mcast_load() - cls.del_mcast_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(cls.pg3.sw_if_index, - bd_id=cls.ucast_flood_bd) except Exception: super(TestVxlan, cls).tearDownClass() raise + @classmethod + def tearDownClass(cls): + super(TestVxlan, cls).tearDownClass() + + def setUp(self): + super(TestVxlan, self).setUp() + # Create VXLAN VTEP on VPP pg0, and put vxlan_tunnel0 and pg1 + # into BD. + self.single_tunnel_bd = 1 + r = VppVxlanTunnel(self, src=self.pg0.local_ip4, + dst=self.pg0.remote_ip4, vni=self.single_tunnel_bd) + 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) + r = VppVxlanTunnel(self, src=self.pg0.local_ip4, dst=self.mcast_ip4, + 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.add_mcast_tunnels_load() + self.del_shared_mcast_dst_load() + self.del_mcast_tunnels_load() + + # 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.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=self.pg3.sw_if_index, bd_id=self.ucast_flood_bd) + + def test_decap(self): + """ Decapsulation test + from BridgeDoman + """ + super(TestVxlan, self).test_decap() + + 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) + ether = out[0] + pkt = reassemble4(out) + pkt = ether / pkt + self.check_encapsulation(pkt, self.single_tunnel_bd) + + payload = self.decapsulate(pkt) + # TODO: Scapy bug? + # 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(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")) if __name__ == '__main__':