553 lines
16 KiB
Python
553 lines
16 KiB
Python
# Utils
|
|
# Copyright (c) 2016, Tieto Corporation
|
|
#
|
|
# This software may be distributed under the terms of the BSD license.
|
|
# See README for more details.
|
|
|
|
import re
|
|
import time
|
|
from remotehost import Host
|
|
import hostapd
|
|
import config
|
|
|
|
class TestSkip(Exception):
|
|
def __init__(self, reason):
|
|
self.reason = reason
|
|
def __str__(self):
|
|
return self.reason
|
|
|
|
# get host based on name
|
|
def get_host(devices, dev_name):
|
|
dev = config.get_device(devices, dev_name)
|
|
host = Host(host=dev['hostname'],
|
|
ifname=dev['ifname'],
|
|
port=dev['port'],
|
|
name=dev['name'])
|
|
host.dev = dev
|
|
return host
|
|
|
|
# Run setup_hw - hardware specific
|
|
def setup_hw_host_iface(host, iface, setup_params, force_restart=False):
|
|
try:
|
|
setup_hw = setup_params['setup_hw']
|
|
restart = ""
|
|
try:
|
|
if setup_params['restart_device'] == True:
|
|
restart = "-R"
|
|
except:
|
|
pass
|
|
|
|
if force_restart:
|
|
restart = "-R"
|
|
|
|
host.execute([setup_hw, "-I", iface, restart])
|
|
except:
|
|
pass
|
|
|
|
def setup_hw_host(host, setup_params, force_restart=False):
|
|
ifaces = re.split('; | |, ', host.ifname)
|
|
for iface in ifaces:
|
|
setup_hw_host_iface(host, iface, setup_params, force_restart)
|
|
|
|
def setup_hw(hosts, setup_params, force_restart=False):
|
|
for host in hosts:
|
|
setup_hw_host(host, setup_params, force_restart)
|
|
|
|
# get traces - hw specific
|
|
def trace_start(hosts, setup_params):
|
|
for host in hosts:
|
|
trace_start_stop(host, setup_params, start=True)
|
|
|
|
def trace_stop(hosts, setup_params):
|
|
for host in hosts:
|
|
trace_start_stop(host, setup_params, start=False)
|
|
|
|
def trace_start_stop(host, setup_params, start):
|
|
if setup_params['trace'] == False:
|
|
return
|
|
try:
|
|
start_trace = setup_params['trace_start']
|
|
stop_trace = setup_params['trace_stop']
|
|
if start:
|
|
cmd = start_trace
|
|
else:
|
|
cmd = stop_trace
|
|
trace_dir = setup_params['log_dir'] + host.ifname + "/remote_traces"
|
|
host.add_log(trace_dir + "/*")
|
|
host.execute([cmd, "-I", host.ifname, "-D", trace_dir])
|
|
except:
|
|
pass
|
|
|
|
# get perf
|
|
def perf_start(hosts, setup_params):
|
|
for host in hosts:
|
|
perf_start_stop(host, setup_params, start=True)
|
|
|
|
def perf_stop(hosts, setup_params):
|
|
for host in hosts:
|
|
perf_start_stop(host, setup_params, start=False)
|
|
|
|
def perf_start_stop(host, setup_params, start):
|
|
if setup_params['perf'] == False:
|
|
return
|
|
try:
|
|
perf_start = setup_params['perf_start']
|
|
perf_stop = setup_params['perf_stop']
|
|
if start:
|
|
cmd = perf_start
|
|
else:
|
|
cmd = perf_stop
|
|
perf_dir = setup_params['log_dir'] + host.ifname + "/remote_perf"
|
|
host.add_log(perf_dir + "/*")
|
|
host.execute([cmd, "-I", host.ifname, "-D", perf_dir])
|
|
except:
|
|
pass
|
|
|
|
# hostapd/wpa_supplicant helpers
|
|
def run_hostapd(host, setup_params):
|
|
log_file = None
|
|
try:
|
|
tc_name = setup_params['tc_name']
|
|
log_dir = setup_params['log_dir']
|
|
log_file = log_dir + tc_name + "_hostapd_" + host.name + "_" + host.ifname + ".log"
|
|
host.execute(["rm", log_file])
|
|
log = " -f " + log_file
|
|
except:
|
|
log = ""
|
|
|
|
if log_file:
|
|
host.add_log(log_file)
|
|
status, buf = host.execute([setup_params['hostapd'], "-B", "-ddt", "-g", "udp:" + host.port, log])
|
|
if status != 0:
|
|
raise Exception("Could not run hostapd: " + buf)
|
|
|
|
def run_wpasupplicant(host, setup_params):
|
|
log_file = None
|
|
try:
|
|
tc_name = setup_params['tc_name']
|
|
log_dir = setup_params['log_dir']
|
|
log_file = log_dir + tc_name + "_wpa_supplicant_" + host.name + "_" + host.ifname + ".log"
|
|
host.execute(["rm", log_file])
|
|
log = " -f " + log_file
|
|
except:
|
|
log = ""
|
|
|
|
if log_file:
|
|
host.add_log(log_file)
|
|
status, buf = host.execute([setup_params['wpa_supplicant'], "-B", "-ddt", "-g", "udp:" + host.port, log])
|
|
if status != 0:
|
|
raise Exception("Could not run wpa_supplicant: " + buf)
|
|
|
|
def get_ap_params(channel="1", bw="HT20", country="US", security="open", ht_capab=None, vht_capab=None):
|
|
ssid = "test_" + channel + "_" + security + "_" + bw
|
|
|
|
if bw == "b_only":
|
|
params = hostapd.b_only_params(channel, ssid, country)
|
|
elif bw == "g_only":
|
|
params = hostapd.g_only_params(channel, ssid, country)
|
|
elif bw == "g_only_wmm":
|
|
params = hostapd.g_only_params(channel, ssid, country)
|
|
params['wmm_enabled'] = "1"
|
|
elif bw == "a_only":
|
|
params = hostapd.a_only_params(channel, ssid, country)
|
|
elif bw == "a_only_wmm":
|
|
params = hostapd.a_only_params(channel, ssid, country)
|
|
params['wmm_enabled'] = "1"
|
|
elif bw == "HT20":
|
|
params = hostapd.ht20_params(channel, ssid, country)
|
|
if ht_capab:
|
|
try:
|
|
params['ht_capab'] = params['ht_capab'] + ht_capab
|
|
except:
|
|
params['ht_capab'] = ht_capab
|
|
elif bw == "HT40+":
|
|
params = hostapd.ht40_plus_params(channel, ssid, country)
|
|
if ht_capab:
|
|
params['ht_capab'] = params['ht_capab'] + ht_capab
|
|
elif bw == "HT40-":
|
|
params = hostapd.ht40_minus_params(channel, ssid, country)
|
|
if ht_capab:
|
|
params['ht_capab'] = params['ht_capab'] + ht_capab
|
|
elif bw == "VHT80":
|
|
params = hostapd.ht40_plus_params(channel, ssid, country)
|
|
if ht_capab:
|
|
params['ht_capab'] = params['ht_capab'] + ht_capab
|
|
if vht_capab:
|
|
try:
|
|
params['vht_capab'] = params['vht_capab'] + vht_capab
|
|
except:
|
|
params['vht_capab'] = vht_capab
|
|
params['ieee80211ac'] = "1"
|
|
params['vht_oper_chwidth'] = "1"
|
|
params['vht_oper_centr_freq_seg0_idx'] = str(int(channel) + 6)
|
|
else:
|
|
params = {}
|
|
|
|
# now setup security params
|
|
if security == "tkip":
|
|
sec_params = hostapd.wpa_params(passphrase="testtest")
|
|
elif security == "ccmp":
|
|
sec_params = hostapd.wpa2_params(passphrase="testtest")
|
|
elif security == "mixed":
|
|
sec_params = hostapd.wpa_mixed_params(passphrase="testtest")
|
|
elif security == "wep":
|
|
sec_params = {"wep_key0" : "123456789a",
|
|
"wep_default_key" : "0",
|
|
"auth_algs" : "1"}
|
|
elif security == "wep_shared":
|
|
sec_params = {"wep_key0" : "123456789a",
|
|
"wep_default_key" : "0",
|
|
"auth_algs" : "2"}
|
|
else:
|
|
sec_params = {}
|
|
|
|
params.update(sec_params)
|
|
|
|
return params
|
|
|
|
# ip helpers
|
|
def get_ipv4(client, ifname=None):
|
|
if ifname is None:
|
|
ifname = client.ifname
|
|
status, buf = client.execute(["ifconfig", ifname])
|
|
lines = buf.splitlines()
|
|
|
|
for line in lines:
|
|
res = line.find("inet addr:")
|
|
if res != -1:
|
|
break
|
|
|
|
if res != -1:
|
|
words = line.split()
|
|
addr = words[1].split(":")
|
|
return addr[1]
|
|
|
|
return "unknown"
|
|
|
|
def get_ipv6(client, ifname=None):
|
|
res = -1
|
|
if ifname is None:
|
|
ifname = client.ifname
|
|
status, buf = client.execute(["ifconfig", ifname])
|
|
lines = buf.splitlines()
|
|
|
|
for line in lines:
|
|
res = line.find("Scope:Link")
|
|
if res != -1:
|
|
break
|
|
|
|
if res != -1:
|
|
words = line.split()
|
|
if words[0] == "inet6" and words[1] == "addr:":
|
|
addr_mask = words[2]
|
|
addr = addr_mask.split("/")
|
|
return addr[0]
|
|
|
|
return "unknown"
|
|
|
|
def get_ip(client, addr_type="ipv6", iface=None):
|
|
if addr_type == "ipv6":
|
|
return get_ipv6(client, iface)
|
|
elif addr_type == "ipv4":
|
|
return get_ipv4(client, iface)
|
|
else:
|
|
return "unknown addr_type: " + addr_type
|
|
|
|
def get_ipv4_addr(setup_params, number):
|
|
try:
|
|
ipv4_base = setup_params['ipv4_test_net']
|
|
except:
|
|
ipv4_base = "172.16.12.0"
|
|
|
|
parts = ipv4_base.split('.')
|
|
ipv4 = parts[0] + "." + parts[1] + "." + parts[2] + "." + str(number)
|
|
|
|
return ipv4
|
|
|
|
def get_mac_addr(host, iface=None):
|
|
if iface == None:
|
|
iface = host.ifname
|
|
status, buf = host.execute(["ifconfig", iface])
|
|
if status != 0:
|
|
raise Exception("ifconfig " + iface)
|
|
words = buf.split()
|
|
found = 0
|
|
for word in words:
|
|
if found == 1:
|
|
return word
|
|
if word == "HWaddr":
|
|
found = 1
|
|
raise Exception("Could not find HWaddr")
|
|
|
|
# connectivity/ping helpers
|
|
def get_ping_packet_loss(ping_res):
|
|
loss_line = ""
|
|
lines = ping_res.splitlines()
|
|
for line in lines:
|
|
if line.find("packet loss") != -1:
|
|
loss_line = line
|
|
break;
|
|
|
|
if loss_line == "":
|
|
return "100%"
|
|
|
|
sections = loss_line.split(",")
|
|
|
|
for section in sections:
|
|
if section.find("packet loss") != -1:
|
|
words = section.split()
|
|
return words[0]
|
|
|
|
return "100%"
|
|
|
|
def ac_to_ping_ac(qos):
|
|
if qos == "be":
|
|
qos_param = "0x00"
|
|
elif qos == "bk":
|
|
qos_param = "0x20"
|
|
elif qos == "vi":
|
|
qos_param = "0xA0"
|
|
elif qos == "vo":
|
|
qos_param = "0xE0"
|
|
else:
|
|
qos_param = "0x00"
|
|
return qos_param
|
|
|
|
def ping_run(host, ip, result, ifname=None, addr_type="ipv4", deadline="5", qos=None):
|
|
if ifname is None:
|
|
ifname = host.ifname
|
|
if addr_type == "ipv6":
|
|
ping = ["ping6"]
|
|
else:
|
|
ping = ["ping"]
|
|
|
|
ping = ping + ["-w", deadline, "-I", ifname]
|
|
if qos:
|
|
ping = ping + ["-Q", ac_to_ping_ac(qos)]
|
|
ping = ping + [ip]
|
|
|
|
flush_arp_cache(host)
|
|
|
|
thread = host.execute_run(ping, result)
|
|
return thread
|
|
|
|
def ping_wait(host, thread, timeout=None):
|
|
host.wait_execute_complete(thread, timeout)
|
|
if thread.isAlive():
|
|
raise Exception("ping thread still alive")
|
|
|
|
def flush_arp_cache(host):
|
|
host.execute(["ip", "-s", "-s", "neigh", "flush", "all"])
|
|
|
|
def check_connectivity(a, b, addr_type="ipv4", deadline="5", qos=None):
|
|
addr_a = get_ip(a, addr_type)
|
|
addr_b = get_ip(b, addr_type)
|
|
|
|
if addr_type == "ipv4":
|
|
ping = ["ping"]
|
|
else:
|
|
ping = ["ping6"]
|
|
|
|
ping_a_b = ping + ["-w", deadline, "-I", a.ifname]
|
|
ping_b_a = ping + ["-w", deadline, "-I", b.ifname]
|
|
if qos:
|
|
ping_a_b = ping_a_b + ["-Q", ac_to_ping_ac(qos)]
|
|
ping_b_a = ping_b_a + ["-Q", ac_to_ping_ac(qos)]
|
|
ping_a_b = ping_a_b + [addr_b]
|
|
ping_b_a = ping_b_a + [addr_a]
|
|
|
|
# Clear arp cache
|
|
flush_arp_cache(a)
|
|
flush_arp_cache(b)
|
|
|
|
status, buf = a.execute(ping_a_b)
|
|
if status == 2 and ping == "ping6":
|
|
# tentative possible for a while, try again
|
|
time.sleep(3)
|
|
status, buf = a.execute(ping_a_b)
|
|
if status != 0:
|
|
raise Exception("ping " + a.name + "/" + a.ifname + " >> " + b.name + "/" + b.ifname)
|
|
|
|
a_b = get_ping_packet_loss(buf)
|
|
|
|
# Clear arp cache
|
|
flush_arp_cache(a)
|
|
flush_arp_cache(b)
|
|
|
|
status, buf = b.execute(ping_b_a)
|
|
if status != 0:
|
|
raise Exception("ping " + b.name + "/" + b.ifname + " >> " + a.name + "/" + a.ifname)
|
|
|
|
b_a = get_ping_packet_loss(buf)
|
|
|
|
if int(a_b[:-1]) > 40:
|
|
raise Exception("Too high packet lost: " + a_b)
|
|
|
|
if int(b_a[:-1]) > 40:
|
|
raise Exception("Too high packet lost: " + b_a)
|
|
|
|
return a_b, b_a
|
|
|
|
|
|
# iperf helpers
|
|
def get_iperf_speed(iperf_res, pattern="Mbits/sec"):
|
|
lines = iperf_res.splitlines()
|
|
sum_line = ""
|
|
last_line = ""
|
|
count = 0
|
|
res = -1
|
|
|
|
# first find last SUM line
|
|
for line in lines:
|
|
res = line.find("[SUM]")
|
|
if res != -1:
|
|
sum_line = line
|
|
|
|
# next check SUM status
|
|
if sum_line != "":
|
|
words = sum_line.split()
|
|
for word in words:
|
|
res = word.find(pattern)
|
|
if res != -1:
|
|
return words[count - 1] + " " + pattern
|
|
count = count + 1
|
|
|
|
# no SUM - one thread - find last line
|
|
for line in lines:
|
|
res = line.find(pattern)
|
|
if res != -1:
|
|
last_line = line
|
|
|
|
if last_line == "":
|
|
return "0 " + pattern
|
|
|
|
count = 0
|
|
words = last_line.split()
|
|
for word in words:
|
|
res = word.find(pattern)
|
|
if res != -1:
|
|
return words[count - 1] + " " + pattern
|
|
break;
|
|
count = count + 1
|
|
return "0 " + pattern
|
|
|
|
def ac_to_iperf_ac(qos):
|
|
if qos == "be":
|
|
qos_param = "0x00"
|
|
elif qos == "bk":
|
|
qos_param = "0x20"
|
|
elif qos == "vi":
|
|
qos_param = "0xA0"
|
|
elif qos == "vo":
|
|
qos_param = "0xE0"
|
|
else:
|
|
qos_param = "0x00"
|
|
return qos_param
|
|
|
|
def iperf_run(server, client, server_ip, client_res, server_res,
|
|
l4="udp", bw="30M", test_time="30", parallel="5",
|
|
qos="be", param=" -i 5 ", ifname=None, l3="ipv4",
|
|
port="5001", iperf="iperf"):
|
|
if ifname == None:
|
|
ifname = client.ifname
|
|
|
|
if iperf == "iperf":
|
|
iperf_server = [iperf]
|
|
elif iperf == "iperf3":
|
|
iperf_server = [iperf, "-1"]
|
|
|
|
if l3 == "ipv4":
|
|
iperf_client = [iperf, "-c", server_ip, "-p", port]
|
|
iperf_server = iperf_server + ["-p", port]
|
|
elif l3 == "ipv6":
|
|
iperf_client = [iperf, "-V", "-c", server_ip + "%" + ifname, "-p", port]
|
|
iperf_server = iperf_server + ["-V", "-p", port]
|
|
else:
|
|
return -1, -1
|
|
|
|
iperf_server = iperf_server + ["-s", "-f", "m", param]
|
|
iperf_client = iperf_client + ["-f", "m", "-t", test_time]
|
|
|
|
if parallel != "1":
|
|
iperf_client = iperf_client + ["-P", parallel]
|
|
|
|
if l4 == "udp":
|
|
if iperf != "iperf3":
|
|
iperf_server = iperf_server + ["-u"]
|
|
iperf_client = iperf_client + ["-u", "-b", bw]
|
|
|
|
if qos:
|
|
iperf_client = iperf_client + ["-Q", ac_to_iperf_ac(qos)]
|
|
|
|
flush_arp_cache(server)
|
|
flush_arp_cache(client)
|
|
|
|
server_thread = server.execute_run(iperf_server, server_res)
|
|
time.sleep(1)
|
|
client_thread = client.execute_run(iperf_client, client_res)
|
|
|
|
return server_thread, client_thread
|
|
|
|
def iperf_wait(server, client, server_thread, client_thread, timeout=None, iperf="iperf"):
|
|
client.wait_execute_complete(client_thread, timeout)
|
|
if client_thread.isAlive():
|
|
raise Exception("iperf client thread still alive")
|
|
|
|
server.wait_execute_complete(server_thread, 5)
|
|
if server_thread.isAlive():
|
|
server.execute(["killall", "-s", "INT", iperf])
|
|
time.sleep(1)
|
|
|
|
server.wait_execute_complete(server_thread, 5)
|
|
if server_thread.isAlive():
|
|
raise Exception("iperf server thread still alive")
|
|
|
|
return
|
|
|
|
def run_tp_test(server, client, l3="ipv4", iperf="iperf", l4="tcp", test_time="10", parallel="5",
|
|
qos="be", bw="30M", ifname=None, port="5001"):
|
|
client_res = []
|
|
server_res = []
|
|
|
|
server_ip = get_ip(server, l3)
|
|
time.sleep(1)
|
|
server_thread, client_thread = iperf_run(server, client, server_ip, client_res, server_res,
|
|
l3=l3, iperf=iperf, l4=l4, test_time=test_time,
|
|
parallel=parallel, qos=qos, bw=bw, ifname=ifname,
|
|
port=port)
|
|
iperf_wait(server, client, server_thread, client_thread, iperf=iperf, timeout=int(test_time) + 10)
|
|
|
|
if client_res[0] != 0:
|
|
raise Exception(iperf + " client: " + client_res[1])
|
|
if server_res[0] != 0:
|
|
raise Exception(iperf + " server: " + server_res[1])
|
|
if client_res[1] is None:
|
|
raise Exception(iperf + " client result issue")
|
|
if server_res[1] is None:
|
|
raise Exception(iperf + " server result issue")
|
|
|
|
if iperf == "iperf":
|
|
result = server_res[1]
|
|
if iperf == "iperf3":
|
|
result = client_res[1]
|
|
|
|
speed = get_iperf_speed(result)
|
|
return speed
|
|
|
|
def get_iperf_bw(bw, parallel, spacial_streams=2):
|
|
if bw == "b_only":
|
|
max_tp = 11
|
|
elif bw == "g_only" or bw == "g_only_wmm" or bw == "a_only" or bw == "a_only_wmm":
|
|
max_tp = 54
|
|
elif bw == "HT20":
|
|
max_tp = 72 * spacial_streams
|
|
elif bw == "HT40+" or bw == "HT40-":
|
|
max_tp = 150 * spacial_streams
|
|
elif bw == "VHT80":
|
|
max_tp = 433 * spacial_streams
|
|
else:
|
|
max_tp = 150
|
|
|
|
max_tp = 1.2 * max_tp
|
|
|
|
return str(int(max_tp/int(parallel))) + "M"
|