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import ptf
from ptf.base_tests import BaseTest
from ptf.testutils import *
from scapy.all import *
from mrzcpd import Mrzcpd
from common_pkt import *
import ptf.mask as mask
start_conf = """
[device]
device=veth0,veth1,veth2,veth3,veth4
sz_tunnel=8192
sz_buffer=0
[device:veth0]
promisc=1
mtu=1500
driver=2
role=1
[device:veth1]
promisc=1
mtu=1500
driver=2
role=1
[device:veth2]
promisc=1
mtu=1500
driver=2
role=1
[device:veth3]
promisc=1
mtu=1500
driver=2
role=1
[device:veth4]
promisc=1
mtu=1500
driver=2
role=1
[service]
iocore=1
distmode=2
hashmode=0
[limits]
nr_max_ef_adapters=32
nr_max_vwires=32
nr_max_tera_adapters=32
nr_max_link_dbs=32
[eal]
virtaddr=0x600000000000
loglevel=7
nohuge=1
mem=65535
[keepalive]
check_spinlock=1
[http_server]
listen_addr=127.0.0.1
[ctrlzone]
ctrlzone0=tunnat, 64
ctrlzone1=vsys, 64
[pool]
create_mode=3
sz_direct_pktmbuf=4096
sz_indirect_pktmbuf=4096
sz_cache=256
sz_data=3000
[ctrlmsg]
listen_addr=0.0.0.0
listen_port=46789
[rpc]
addr=127.0.0.1
port=56789
# sid
[ef_adapters]
sid_start=100
sid_end=200
max_rules=256
[vwires]
sid_start=300
sid_end=400
max_rules=256
# vwire
[vwire:0]
interface_int=veth3
interface_ext=veth4
[service_lb]
sid_start=1000
sid_end=2000
# load balance
[load_balance:0]
sid=1000
mode=0
devices=veth0,0,veth1,0,veth2,0
"""
dynamic_conf = """
[classifier_rule:0]
rule_id=1
ruleset_type=0
action=2
priority=1
sid=1000
vwire_id=0
"""
"""
+-------+ +-------+ +------------+
| Vwire | | LB | | PTF |
+-------+ +-------+ 100 +------------+
| veth3 | | veth0 | ----> | veth0-ptf0 |
+-------+ 300 +-------+ 100 +------------+
| veth4 | ----> | veth1 | ----> | veth1-ptf1 |
+-------+ +-------+ 100 +------------+
| veth2 | ----> | veth2-ptf2 |
+-------+ +------------+
"""
@group("lb_base_test")
class TestForBase(BaseTest):
def setUp(self):
self.dataplane = ptf.dataplane_instance
def __init__(self):
BaseTest.__init__(self)
def runTest(self):
try:
# Init & Start mrzcpd
mrzcpd = Mrzcpd(start_conf,dynamic_conf)
mrzcpd.start()
# Create packet list
send_pkt_list = PacketList()
# Create send packet
for port in range(0, 300):
pkt = simple_tcp_packet(ip_src=generate_random_ipv4(), ip_dst=generate_random_ipv4(
), tcp_sport=generate_random_tcp_port(), tcp_dport=generate_random_tcp_port())
send_pkt_list.append(pkt)
# Send packet
for pkt in send_pkt_list:
send_packet(self, 4, pkt)
# Create verify packet
tcp_pkt = simple_tcp_packet()
verify_pkt = mask.Mask(tcp_pkt)
verify_pkt.set_do_not_care(0, len(tcp_pkt) * 8)
# Wait for a while to ensure enough packets arrive
time.sleep(3)
# Get packet count for each port
packet_counts = []
for port in range(0, 3):
packet_count = get_port_packet_count(self, (0, port))
print("port {} packet count: {}".format(port, packet_count))
packet_counts.append(packet_count)
# Calculate average packet count
average_packet_count = sum(packet_counts) / len(packet_counts)
# Set tolerance
tolerance = 0.15 * average_packet_count
# Check if packet count is abnormal
for port in range(0, 3):
if abs(packet_counts[port] - average_packet_count) > tolerance:
self.fail("Port %d has an abnormal packet count: %d (average is %d)" % (
port, packet_counts[port], average_packet_count))
finally:
mrzcpd.stop()
"""
+-------+ +--------------+ +------------+
| Vwire | | LB | | PTF |
+-------+ +--------------+ 150 +------------+
| veth3 | | veth0 | ----> | veth0-ptf0 |
+-------+ 300 +--------------+ 150 +------------+
| veth4 | ----> | veth1 | ----> | veth1-ptf1 |
+-------+ +--------------+ 0 +------------+
| veth2 (down) | ----> | veth2-ptf2 |
+--------------+ +------------+
"""
# The test current is invalid,because 'ifconfig veth2 down' can't affect the mrzcpd link status.
@group("lb_one_dev_down_test")
class TestForOneDevDown(BaseTest):
def setUp(self):
self.dataplane = ptf.dataplane_instance
def __init__(self):
BaseTest.__init__(self)
def runTest(self):
try:
# Init & Start mrzcpd
mrzcpd = Mrzcpd(start_conf,dynamic_conf)
mrzcpd.start()
# Set veth2 down
os.system("ifconfig veth2 down")
# Create packet list
send_pkt_list = PacketList()
# Create send packet
for port in range(0, 300):
pkt = simple_tcp_packet(ip_src=generate_random_ipv4(), ip_dst=generate_random_ipv4(
), tcp_sport=generate_random_tcp_port(), tcp_dport=generate_random_tcp_port())
send_pkt_list.append(pkt)
# Send packet
for pkt in send_pkt_list:
send_packet(self, 4, pkt)
# Create verify packet
tcp_pkt = simple_tcp_packet()
verify_pkt = mask.Mask(tcp_pkt)
verify_pkt.set_do_not_care(0, len(tcp_pkt) * 8)
# Wait for a while to ensure enough packets arrive
time.sleep(3)
# Get packet count for each port
packet_counts = []
for port in range(0, 2):
packet_count = get_port_packet_count(self, (0, port))
print("port {} packet count: {}".format(port, packet_count))
packet_counts.append(packet_count)
# Calculate average packet count
average_packet_count = sum(packet_counts) / len(packet_counts)
# Set tolerance
tolerance = 0.15 * average_packet_count
# Check veth2 rx packet count
if get_port_packet_count(self, (0, 2)) != 0:
self.fail("veth2 is down, but rx packet count is not 0")
# Check if packet count is abnormal
for port in range(0, 2):
if abs(packet_counts[port] - average_packet_count) > tolerance:
self.fail("Port %d has an abnormal packet count: %d (average is %d)" % (
port, packet_counts[port], average_packet_count))
finally:
# Set veth2 up
os.system("ifconfig veth2 up")
mrzcpd.stop()
|
