0178d52384
- JIRA: CSIT-255 - create loopback interfaces - move pg-interface specific arp and neighbor discovery from vpp_interface to vpp_pg_interface - base configuration of IRB tests - IP test scenario Change-Id: I9945a188163652a4e22325877aef008c4d029557 Signed-off-by: Matej Klotton <mklotton@cisco.com>
219 lines
8.6 KiB
Python
219 lines
8.6 KiB
Python
#!/usr/bin/env python
|
|
|
|
import unittest
|
|
from logging import *
|
|
import random
|
|
|
|
from scapy.packet import Raw
|
|
from scapy.layers.l2 import Ether, Dot1Q
|
|
from scapy.layers.inet import IP, UDP
|
|
|
|
from framework import VppTestCase, VppTestRunner
|
|
from vpp_sub_interface import VppDot1QSubint
|
|
from util import Host
|
|
|
|
|
|
class TestL2bd(VppTestCase):
|
|
""" L2BD Test Case """
|
|
|
|
# Test variables
|
|
bd_id = 1 # Bridge domain ID
|
|
mac_entries_count = 100 # Number of MAC entries for bridge-domain to learn
|
|
dot1q_sub_id = 100 # SubID of dot1q sub-interface
|
|
dot1q_tag = 100 # VLAN tag for dot1q sub-interface
|
|
dot1ad_sub_id = 200 # SubID of dot1ad sub-interface
|
|
dot1ad_outer_tag = 200 # VLAN S-tag for dot1ad sub-interface
|
|
dot1ad_inner_tag = 300 # VLAN C-tag for dot1ad sub-interface
|
|
pkts_per_burst = 257 # Number of packets per burst
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
super(TestL2bd, cls).setUpClass()
|
|
|
|
def setUp(self):
|
|
super(TestL2bd, self).setUp()
|
|
|
|
# create 3 pg interfaces
|
|
self.create_pg_interfaces(range(3))
|
|
|
|
# create 2 sub-interfaces for pg1 and pg2
|
|
self.sub_interfaces = [
|
|
VppDot1QSubint(self, self.pg1, TestL2bd.dot1q_sub_id),
|
|
VppDot1QSubint(self, self.pg2, TestL2bd.dot1ad_sub_id)]
|
|
|
|
# packet flows mapping pg0 -> pg1, pg2, etc.
|
|
self.flows = dict()
|
|
self.flows[self.pg0] = [self.pg1, self.pg2]
|
|
self.flows[self.pg1] = [self.pg0, self.pg2]
|
|
self.flows[self.pg2] = [self.pg0, self.pg1]
|
|
|
|
# packet sizes
|
|
self.pg_if_packet_sizes = [64, 512, 1518, 9018]
|
|
self.sub_if_packet_sizes = [64, 512, 1518 + 4, 9018 + 4]
|
|
|
|
self.interfaces = list(self.pg_interfaces)
|
|
self.interfaces.extend(self.sub_interfaces)
|
|
|
|
# Create BD with MAC learning enabled and put interfaces and
|
|
# sub-interfaces to this BD
|
|
for pg_if in self.pg_interfaces:
|
|
sw_if_index = pg_if.sub_if.sw_if_index if hasattr(pg_if, 'sub_if') \
|
|
else pg_if.sw_if_index
|
|
self.vapi.sw_interface_set_l2_bridge(sw_if_index,
|
|
bd_id=TestL2bd.bd_id)
|
|
|
|
# setup all interfaces
|
|
for i in self.interfaces:
|
|
i.admin_up()
|
|
|
|
# mapping between packet-generator index and lists of test hosts
|
|
self.hosts_by_pg_idx = dict()
|
|
|
|
# create test host entries and inject packets to learn MAC entries in
|
|
# the bridge-domain
|
|
self.create_hosts_and_learn(TestL2bd.mac_entries_count)
|
|
info(self.vapi.cli("show l2fib"))
|
|
|
|
def tearDown(self):
|
|
super(TestL2bd, self).tearDown()
|
|
if not self.vpp_dead:
|
|
info(self.vapi.cli("show l2fib verbose"))
|
|
info(self.vapi.cli("show bridge-domain %s detail" % self.bd_id))
|
|
|
|
def create_hosts_and_learn(self, count):
|
|
"""
|
|
Create required number of host MAC addresses and distribute them among
|
|
interfaces. Create host IPv4 address for every host MAC address. Create
|
|
L2 MAC packet stream with host MAC addresses per interface to let
|
|
the bridge domain learn these MAC addresses.
|
|
|
|
:param count: Integer number of hosts to create MAC/IPv4 addresses for.
|
|
"""
|
|
n_int = len(self.pg_interfaces)
|
|
macs_per_if = count / n_int
|
|
i = -1
|
|
for pg_if in self.pg_interfaces:
|
|
i += 1
|
|
start_nr = macs_per_if * i
|
|
end_nr = count if i == (n_int - 1) else macs_per_if * (i + 1)
|
|
self.hosts_by_pg_idx[pg_if.sw_if_index] = []
|
|
hosts = self.hosts_by_pg_idx[pg_if.sw_if_index]
|
|
packets = []
|
|
for j in range(start_nr, end_nr):
|
|
host = Host(
|
|
"00:00:00:ff:%02x:%02x" % (pg_if.sw_if_index, j),
|
|
"172.17.1%02x.%u" % (pg_if.sw_if_index, j))
|
|
packet = (Ether(dst="ff:ff:ff:ff:ff:ff", src=host.mac))
|
|
hosts.append(host)
|
|
if hasattr(pg_if, 'sub_if'):
|
|
packet = pg_if.sub_if.add_dot1_layer(packet)
|
|
packets.append(packet)
|
|
pg_if.add_stream(packets)
|
|
info("Sending broadcast eth frames for MAC learning")
|
|
self.pg_start()
|
|
|
|
def create_stream(self, src_if, packet_sizes):
|
|
pkts = []
|
|
for i in range(0, TestL2bd.pkts_per_burst):
|
|
dst_if = self.flows[src_if][i % 2]
|
|
dst_host = random.choice(self.hosts_by_pg_idx[dst_if.sw_if_index])
|
|
src_host = random.choice(self.hosts_by_pg_idx[src_if.sw_if_index])
|
|
pkt_info = self.create_packet_info(
|
|
src_if.sw_if_index, dst_if.sw_if_index)
|
|
payload = self.info_to_payload(pkt_info)
|
|
p = (Ether(dst=dst_host.mac, src=src_host.mac) /
|
|
IP(src=src_host.ip4, dst=dst_host.ip4) /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw(payload))
|
|
pkt_info.data = p.copy()
|
|
if hasattr(src_if, 'sub_if'):
|
|
p = src_if.sub_if.add_dot1_layer(p)
|
|
size = packet_sizes[(i / 2) % len(packet_sizes)]
|
|
self.extend_packet(p, size)
|
|
pkts.append(p)
|
|
return pkts
|
|
|
|
def verify_capture(self, pg_if, capture):
|
|
last_info = dict()
|
|
for i in self.pg_interfaces:
|
|
last_info[i.sw_if_index] = None
|
|
dst_sw_if_index = pg_if.sw_if_index
|
|
for packet in capture:
|
|
payload_info = self.payload_to_info(str(packet[Raw]))
|
|
src_sw_if_index = payload_info.src
|
|
src_if = None
|
|
for ifc in self.pg_interfaces:
|
|
if ifc != pg_if:
|
|
if ifc.sw_if_index == src_sw_if_index:
|
|
src_if = ifc
|
|
break
|
|
if hasattr(src_if, 'sub_if'):
|
|
# Check VLAN tags and Ethernet header
|
|
packet = src_if.sub_if.remove_dot1_layer(packet)
|
|
self.assertTrue(Dot1Q not in packet)
|
|
try:
|
|
ip = packet[IP]
|
|
udp = packet[UDP]
|
|
packet_index = payload_info.index
|
|
self.assertEqual(payload_info.dst, dst_sw_if_index)
|
|
debug("Got packet on port %s: src=%u (id=%u)" %
|
|
(pg_if.name, payload_info.src, packet_index))
|
|
next_info = self.get_next_packet_info_for_interface2(
|
|
payload_info.src, dst_sw_if_index,
|
|
last_info[payload_info.src])
|
|
last_info[payload_info.src] = next_info
|
|
self.assertTrue(next_info is not None)
|
|
self.assertEqual(packet_index, next_info.index)
|
|
saved_packet = next_info.data
|
|
# Check standard fields
|
|
self.assertEqual(ip.src, saved_packet[IP].src)
|
|
self.assertEqual(ip.dst, saved_packet[IP].dst)
|
|
self.assertEqual(udp.sport, saved_packet[UDP].sport)
|
|
self.assertEqual(udp.dport, saved_packet[UDP].dport)
|
|
except:
|
|
error("Unexpected or invalid packet:")
|
|
error(packet.show())
|
|
raise
|
|
for i in self.pg_interfaces:
|
|
remaining_packet = self.get_next_packet_info_for_interface2(
|
|
i, dst_sw_if_index, last_info[i.sw_if_index])
|
|
self.assertTrue(
|
|
remaining_packet is None,
|
|
"Port %u: Packet expected from source %u didn't arrive" %
|
|
(dst_sw_if_index, i.sw_if_index))
|
|
|
|
def test_l2bd(self):
|
|
""" L2BD MAC learning test
|
|
|
|
1.config
|
|
MAC learning enabled
|
|
learn 100 MAC enries
|
|
3 interfaces: untagged, dot1q, dot1ad (dot1q used instead of dot1ad
|
|
in the first version)
|
|
|
|
2.sending l2 eth pkts between 3 interface
|
|
64B, 512B, 1518B, 9200B (ether_size)
|
|
burst of 257 pkts per interface
|
|
"""
|
|
|
|
# Create incoming packet streams for packet-generator interfaces
|
|
for i in self.pg_interfaces:
|
|
packet_sizes = self.sub_if_packet_sizes if hasattr(i, 'sub_if') \
|
|
else self.pg_if_packet_sizes
|
|
pkts = self.create_stream(i, packet_sizes)
|
|
i.add_stream(pkts)
|
|
|
|
# Enable packet capture and start packet sending
|
|
self.pg_enable_capture(self.pg_interfaces)
|
|
self.pg_start()
|
|
|
|
# Verify outgoing packet streams per packet-generator interface
|
|
for i in self.pg_interfaces:
|
|
capture = i.get_capture()
|
|
info("Verifying capture on interface %s" % i.name)
|
|
self.verify_capture(i, capture)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main(testRunner=VppTestRunner)
|