7e665d64eb
The "test-all" target is still never called as part of any continuous
test (as it probably should) but at least it can now be expected to
succeed.
VXLAN-GPE:
* decapsulate Ethernet to "l2-input" instead of "ethernet-input"
otherwise the inner mac address get checked against the interface one
(external) and packet gets dropped (mac mismatch)
* set packet input sw_if_index to unicast vxlan tunnel for learning
TEST:
* VXLAN:
* reduce the number of share tunnels:
=> reduce test duration by half
=> no functional change
* VXLAN-GPE:
* fix test TearDown() cli: command is "show vxlan-gpe" only
* remove vxlan-gpe specific tests as the were a duplicated of the
BridgeDomain one and already inherited.
* disable test_mcast_rcv() and test_mcast_flood() tests
* P2PEthernetAPI:
* remove test: "create 100k of p2p subifs"
there already is a "create 1k p2p subifs" so this one is a load test
and not a unit test.
See: lists.fd.io/pipermail/vpp-dev/2017-November/007280.html
Change-Id: Icafb83769eb560cbdeb3dc6d1f1d3c23c0901cd9
Signed-off-by: Gabriel Ganne <gabriel.ganne@enea.com>
235 lines
8.8 KiB
Python
235 lines
8.8 KiB
Python
#!/usr/bin/env python
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import socket
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from util import ip4n_range
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import unittest
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from framework import VppTestCase, VppTestRunner
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from template_bd import BridgeDomain
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from scapy.layers.l2 import Ether
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from scapy.layers.inet import IP, UDP
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from scapy.layers.vxlan import VXLAN
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from scapy.utils import atol
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class TestVxlan(BridgeDomain, VppTestCase):
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""" VXLAN Test Case """
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def __init__(self, *args):
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BridgeDomain.__init__(self)
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VppTestCase.__init__(self, *args)
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def encapsulate(self, pkt, vni):
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"""
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Encapsulate the original payload frame by adding VXLAN header with its
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UDP, IP and Ethernet fields
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"""
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return (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
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IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) /
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UDP(sport=self.dport, dport=self.dport, chksum=0) /
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VXLAN(vni=vni, flags=self.flags) /
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pkt)
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def encap_mcast(self, pkt, src_ip, src_mac, vni):
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"""
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Encapsulate the original payload frame by adding VXLAN header with its
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UDP, IP and Ethernet fields
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"""
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return (Ether(src=src_mac, dst=self.mcast_mac) /
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IP(src=src_ip, dst=self.mcast_ip4) /
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UDP(sport=self.dport, dport=self.dport, chksum=0) /
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VXLAN(vni=vni, flags=self.flags) /
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pkt)
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def decapsulate(self, pkt):
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"""
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Decapsulate the original payload frame by removing VXLAN header
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"""
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# check if is set I flag
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self.assertEqual(pkt[VXLAN].flags, int('0x8', 16))
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return pkt[VXLAN].payload
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# Method for checking VXLAN encapsulation.
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#
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def check_encapsulation(self, pkt, vni, local_only=False, mcast_pkt=False):
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# TODO: add error messages
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# Verify source MAC is VPP_MAC and destination MAC is MY_MAC resolved
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# by VPP using ARP.
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self.assertEqual(pkt[Ether].src, self.pg0.local_mac)
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if not local_only:
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if not mcast_pkt:
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self.assertEqual(pkt[Ether].dst, self.pg0.remote_mac)
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else:
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self.assertEqual(pkt[Ether].dst, type(self).mcast_mac)
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# Verify VXLAN tunnel source IP is VPP_IP and destination IP is MY_IP.
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self.assertEqual(pkt[IP].src, self.pg0.local_ip4)
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if not local_only:
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if not mcast_pkt:
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self.assertEqual(pkt[IP].dst, self.pg0.remote_ip4)
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else:
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self.assertEqual(pkt[IP].dst, type(self).mcast_ip4)
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# Verify UDP destination port is VXLAN 4789, source UDP port could be
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# arbitrary.
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self.assertEqual(pkt[UDP].dport, type(self).dport)
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# TODO: checksum check
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# Verify VNI
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self.assertEqual(pkt[VXLAN].vni, vni)
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@classmethod
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def create_vxlan_flood_test_bd(cls, vni, n_ucast_tunnels):
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# Create 10 ucast vxlan tunnels under bd
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ip_range_start = 10
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ip_range_end = ip_range_start + n_ucast_tunnels
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next_hop_address = cls.pg0.remote_ip4n
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for dest_ip4n in ip4n_range(next_hop_address, ip_range_start,
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ip_range_end):
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# add host route so dest_ip4n will not be resolved
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cls.vapi.ip_add_del_route(dest_ip4n, 32, next_hop_address)
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r = cls.vapi.vxlan_add_del_tunnel(
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src_addr=cls.pg0.local_ip4n,
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dst_addr=dest_ip4n,
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vni=vni)
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cls.vapi.sw_interface_set_l2_bridge(r.sw_if_index, bd_id=vni)
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@classmethod
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def add_del_shared_mcast_dst_load(cls, is_add):
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"""
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add or del tunnels sharing the same mcast dst
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to test vxlan ref_count mechanism
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"""
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n_shared_dst_tunnels = 20
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vni_start = 10000
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vni_end = vni_start + n_shared_dst_tunnels
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for vni in range(vni_start, vni_end):
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r = cls.vapi.vxlan_add_del_tunnel(
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src_addr=cls.pg0.local_ip4n,
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dst_addr=cls.mcast_ip4n,
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mcast_sw_if_index=1,
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vni=vni,
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is_add=is_add)
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if r.sw_if_index == 0xffffffff:
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raise "bad sw_if_index"
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@classmethod
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def add_shared_mcast_dst_load(cls):
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cls.add_del_shared_mcast_dst_load(is_add=1)
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@classmethod
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def del_shared_mcast_dst_load(cls):
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cls.add_del_shared_mcast_dst_load(is_add=0)
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@classmethod
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def add_del_mcast_tunnels_load(cls, is_add):
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"""
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add or del tunnels to test vxlan stability
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"""
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n_distinct_dst_tunnels = 200
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ip_range_start = 10
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ip_range_end = ip_range_start + n_distinct_dst_tunnels
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for dest_ip4n in ip4n_range(cls.mcast_ip4n, ip_range_start,
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ip_range_end):
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vni = bytearray(dest_ip4n)[3]
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cls.vapi.vxlan_add_del_tunnel(
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src_addr=cls.pg0.local_ip4n,
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dst_addr=dest_ip4n,
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mcast_sw_if_index=1,
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vni=vni,
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is_add=is_add)
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@classmethod
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def add_mcast_tunnels_load(cls):
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cls.add_del_mcast_tunnels_load(is_add=1)
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@classmethod
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def del_mcast_tunnels_load(cls):
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cls.add_del_mcast_tunnels_load(is_add=0)
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# Class method to start the VXLAN test case.
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# Overrides setUpClass method in VppTestCase class.
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# Python try..except statement is used to ensure that the tear down of
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# the class will be executed even if exception is raised.
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# @param cls The class pointer.
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@classmethod
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def setUpClass(cls):
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super(TestVxlan, cls).setUpClass()
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try:
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cls.dport = 4789
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cls.flags = 0x8
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# Create 2 pg interfaces.
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cls.create_pg_interfaces(range(4))
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for pg in cls.pg_interfaces:
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pg.admin_up()
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# Configure IPv4 addresses on VPP pg0.
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cls.pg0.config_ip4()
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# Resolve MAC address for VPP's IP address on pg0.
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cls.pg0.resolve_arp()
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# Our Multicast address
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cls.mcast_ip4 = '239.1.1.1'
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cls.mcast_ip4n = socket.inet_pton(socket.AF_INET, cls.mcast_ip4)
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iplong = atol(cls.mcast_ip4)
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cls.mcast_mac = "01:00:5e:%02x:%02x:%02x" % (
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(iplong >> 16) & 0x7F, (iplong >> 8) & 0xFF, iplong & 0xFF)
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# Create VXLAN VTEP on VPP pg0, and put vxlan_tunnel0 and pg1
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# into BD.
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cls.single_tunnel_bd = 1
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r = cls.vapi.vxlan_add_del_tunnel(
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src_addr=cls.pg0.local_ip4n,
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dst_addr=cls.pg0.remote_ip4n,
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vni=cls.single_tunnel_bd)
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cls.vapi.sw_interface_set_l2_bridge(r.sw_if_index,
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bd_id=cls.single_tunnel_bd)
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cls.vapi.sw_interface_set_l2_bridge(cls.pg1.sw_if_index,
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bd_id=cls.single_tunnel_bd)
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# Setup vni 2 to test multicast flooding
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cls.n_ucast_tunnels = 10
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cls.mcast_flood_bd = 2
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cls.create_vxlan_flood_test_bd(cls.mcast_flood_bd,
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cls.n_ucast_tunnels)
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r = cls.vapi.vxlan_add_del_tunnel(
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src_addr=cls.pg0.local_ip4n,
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dst_addr=cls.mcast_ip4n,
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mcast_sw_if_index=1,
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vni=cls.mcast_flood_bd)
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cls.vapi.sw_interface_set_l2_bridge(r.sw_if_index,
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bd_id=cls.mcast_flood_bd)
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cls.vapi.sw_interface_set_l2_bridge(cls.pg2.sw_if_index,
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bd_id=cls.mcast_flood_bd)
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# Add and delete mcast tunnels to check stability
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cls.add_shared_mcast_dst_load()
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cls.add_mcast_tunnels_load()
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cls.del_shared_mcast_dst_load()
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cls.del_mcast_tunnels_load()
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# Setup vni 3 to test unicast flooding
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cls.ucast_flood_bd = 3
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cls.create_vxlan_flood_test_bd(cls.ucast_flood_bd,
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cls.n_ucast_tunnels)
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cls.vapi.sw_interface_set_l2_bridge(cls.pg3.sw_if_index,
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bd_id=cls.ucast_flood_bd)
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except Exception:
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super(TestVxlan, cls).tearDownClass()
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raise
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# Method to define VPP actions before tear down of the test case.
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# Overrides tearDown method in VppTestCase class.
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# @param self The object pointer.
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def tearDown(self):
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super(TestVxlan, self).tearDown()
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if not self.vpp_dead:
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self.logger.info(self.vapi.cli("show bridge-domain 1 detail"))
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self.logger.info(self.vapi.cli("show bridge-domain 2 detail"))
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self.logger.info(self.vapi.cli("show bridge-domain 3 detail"))
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self.logger.info(self.vapi.cli("show vxlan tunnel"))
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if __name__ == '__main__':
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unittest.main(testRunner=VppTestRunner)
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