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