# P2P channel selection test cases
# Copyright (c) 2014, Jouni Malinen <j@w1.fi>
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.
import logging
logger = logging.getLogger()
import os
import subprocess
import time
import hostapd
import hwsim_utils
from wpasupplicant import WpaSupplicant
from hwsim import HWSimRadio
from test_p2p_grpform import go_neg_pin_authorized
from test_p2p_grpform import check_grpform_results
from test_p2p_grpform import remove_group
from test_p2p_grpform import go_neg_pbc
from test_p2p_autogo import autogo
def set_country(country):
subprocess.call(['sudo', 'iw', 'reg', 'set', country])
time.sleep(0.1)
def test_p2p_channel_5ghz(dev):
"""P2P group formation with 5 GHz preference"""
try:
set_country("US")
[i_res, r_res] = go_neg_pin_authorized(i_dev=dev[0], i_intent=15,
r_dev=dev[1], r_intent=0,
test_data=False)
check_grpform_results(i_res, r_res)
freq = int(i_res['freq'])
if freq < 5000:
raise Exception("Unexpected channel %d MHz - did not follow 5 GHz preference" % freq)
remove_group(dev[0], dev[1])
finally:
set_country("00")
def test_p2p_channel_5ghz_no_vht(dev):
"""P2P group formation with 5 GHz preference when VHT channels are disallowed"""
try:
set_country("US")
dev[0].request("P2P_SET disallow_freq 5180-5240")
[i_res, r_res] = go_neg_pin_authorized(i_dev=dev[0], i_intent=15,
r_dev=dev[1], r_intent=0,
test_data=False)
check_grpform_results(i_res, r_res)
freq = int(i_res['freq'])
if freq < 5000:
raise Exception("Unexpected channel %d MHz - did not follow 5 GHz preference" % freq)
remove_group(dev[0], dev[1])
finally:
set_country("00")
dev[0].request("P2P_SET disallow_freq ")
def test_p2p_channel_random_social(dev):
"""P2P group formation with 5 GHz preference but all 5 GHz channels disabled"""
try:
set_country("US")
dev[0].request("SET p2p_oper_channel 11")
dev[0].request("P2P_SET disallow_freq 5000-6000,2462")
[i_res, r_res] = go_neg_pin_authorized(i_dev=dev[0], i_intent=15,
r_dev=dev[1], r_intent=0,
test_data=False)
check_grpform_results(i_res, r_res)
freq = int(i_res['freq'])
if freq not in [ 2412, 2437, 2462 ]:
raise Exception("Unexpected channel %d MHz - did not pick random social channel" % freq)
remove_group(dev[0], dev[1])
finally:
set_country("00")
dev[0].request("P2P_SET disallow_freq ")
def test_p2p_channel_random(dev):
"""P2P group formation with 5 GHz preference but all 5 GHz channels and all social channels disabled"""
try:
set_country("US")
dev[0].request("SET p2p_oper_channel 11")
dev[0].request("P2P_SET disallow_freq 5000-6000,2412,2437,2462")
[i_res, r_res] = go_neg_pin_authorized(i_dev=dev[0], i_intent=15,
r_dev=dev[1], r_intent=0,
test_data=False)
check_grpform_results(i_res, r_res)
freq = int(i_res['freq'])
if freq > 2500 or freq in [ 2412, 2437, 2462 ]:
raise Exception("Unexpected channel %d MHz" % freq)
remove_group(dev[0], dev[1])
finally:
set_country("00")
dev[0].request("P2P_SET disallow_freq ")
def test_p2p_channel_random_social_with_op_class_change(dev, apdev, params):
"""P2P group formation using random social channel with oper class change needed"""
try:
set_country("US")
logger.info("Start group on 5 GHz")
[i_res, r_res] = go_neg_pin_authorized(i_dev=dev[0], i_intent=15,
r_dev=dev[1], r_intent=0,
test_data=False)
check_grpform_results(i_res, r_res)
freq = int(i_res['freq'])
if freq < 5000:
raise Exception("Unexpected channel %d MHz - did not pick 5 GHz preference" % freq)
remove_group(dev[0], dev[1])
logger.info("Disable 5 GHz and try to re-start group based on 5 GHz preference")
dev[0].request("SET p2p_oper_reg_class 115")
dev[0].request("SET p2p_oper_channel 36")
dev[0].request("P2P_SET disallow_freq 5000-6000")
[i_res, r_res] = go_neg_pin_authorized(i_dev=dev[0], i_intent=15,
r_dev=dev[1], r_intent=0,
test_data=False)
check_grpform_results(i_res, r_res)
freq = int(i_res['freq'])
if freq not in [ 2412, 2437, 2462 ]:
raise Exception("Unexpected channel %d MHz - did not pick random social channel" % freq)
remove_group(dev[0], dev[1])
try:
arg = [ "tshark",
"-r", os.path.join(params['logdir'], "hwsim0.pcapng"),
"-Y", "wifi_p2p.public_action.subtype == 0",
"-V" ]
cmd = subprocess.Popen(arg, stdout=subprocess.PIPE,
stderr=open('/dev/null', 'w'))
except Exception, e:
logger.info("Could run run tshark check: " + str(e))
cmd = None
pass
if cmd:
last = None
for l in cmd.stdout.read().splitlines():
if "Operating Channel:" not in l:
continue
last = l
if last is None:
raise Exception("Could not find GO Negotiation Request")
if "Operating Class 81" not in last:
raise Exception("Unexpected operating class: " + last.strip())
finally:
set_country("00")
dev[0].request("P2P_SET disallow_freq ")
dev[0].request("SET p2p_oper_reg_class 0")
dev[0].request("SET p2p_oper_channel 0")
def test_p2p_channel_avoid(dev):
"""P2P and avoid frequencies driver event"""
try:
set_country("US")
if "OK" not in dev[0].request("DRIVER_EVENT AVOID_FREQUENCIES 5000-6000,2412,2437,2462"):
raise Exception("Could not simulate driver event")
ev = dev[0].wait_event(["CTRL-EVENT-AVOID-FREQ"], timeout=10)
if ev is None:
raise Exception("No CTRL-EVENT-AVOID-FREQ event")
[i_res, r_res] = go_neg_pin_authorized(i_dev=dev[0], i_intent=15,
r_dev=dev[1], r_intent=0,
test_data=False)
check_grpform_results(i_res, r_res)
freq = int(i_res['freq'])
if freq > 2500 or freq in [ 2412, 2437, 2462 ]:
raise Exception("Unexpected channel %d MHz" % freq)
if "OK" not in dev[0].request("DRIVER_EVENT AVOID_FREQUENCIES"):
raise Exception("Could not simulate driver event(2)")
ev = dev[0].wait_event(["CTRL-EVENT-AVOID-FREQ"], timeout=10)
if ev is None:
raise Exception("No CTRL-EVENT-AVOID-FREQ event")
ev = dev[0].wait_event(["P2P-REMOVE-AND-REFORM-GROUP"], timeout=1)
if ev is not None:
raise Exception("Unexpected P2P-REMOVE-AND-REFORM-GROUP event")
if "OK" not in dev[0].request("DRIVER_EVENT AVOID_FREQUENCIES " + str(freq)):
raise Exception("Could not simulate driver event(3)")
ev = dev[0].wait_event(["CTRL-EVENT-AVOID-FREQ"], timeout=10)
if ev is None:
raise Exception("No CTRL-EVENT-AVOID-FREQ event")
ev = dev[0].wait_event(["P2P-REMOVE-AND-REFORM-GROUP"], timeout=10)
if ev is None:
raise Exception("No P2P-REMOVE-AND-REFORM-GROUP event")
finally:
set_country("00")
dev[0].request("DRIVER_EVENT AVOID_FREQUENCIES")
def test_autogo_following_bss(dev, apdev):
"""P2P autonomous GO operate on the same channel as station interface"""
if dev[0].get_mcc() > 1:
logger.info("test mode: MCC")
dev[0].request("SET p2p_no_group_iface 0")
channels = { 3 : "2422", 5 : "2432", 9 : "2452" }
for key in channels:
hapd = hostapd.add_ap(apdev[0]['ifname'], { "ssid" : 'ap-test',
"channel" : str(key) })
dev[0].connect("ap-test", key_mgmt="NONE",
scan_freq=str(channels[key]))
res_go = autogo(dev[0])
if res_go['freq'] != channels[key]:
raise Exception("Group operation channel is not the same as on connected station interface")
hwsim_utils.test_connectivity(dev[0], hapd)
dev[0].remove_group(res_go['ifname'])
def test_go_neg_with_bss_connected(dev, apdev):
"""P2P channel selection: GO negotiation when station interface is connected"""
dev[0].flush_scan_cache()
dev[1].flush_scan_cache()
dev[0].request("SET p2p_no_group_iface 0")
hapd = hostapd.add_ap(apdev[0]['ifname'],
{ "ssid": 'bss-2.4ghz', "channel": '5' })
dev[0].connect("bss-2.4ghz", key_mgmt="NONE", scan_freq="2432")
#dev[0] as GO
[i_res, r_res] = go_neg_pbc(i_dev=dev[0], i_intent=10, r_dev=dev[1],
r_intent=1)
check_grpform_results(i_res, r_res)
if i_res['role'] != "GO":
raise Exception("GO not selected according to go_intent")
if i_res['freq'] != "2432":
raise Exception("Group formed on a different frequency than BSS")
hwsim_utils.test_connectivity(dev[0], hapd)
dev[0].remove_group(i_res['ifname'])
if dev[0].get_mcc() > 1:
logger.info("Skip as-client case due to MCC being enabled")
return;
#dev[0] as client
[i_res2, r_res2] = go_neg_pbc(i_dev=dev[0], i_intent=1, r_dev=dev[1],
r_intent=10)
check_grpform_results(i_res2, r_res2)
if i_res2['role'] != "client":
raise Exception("GO not selected according to go_intent")
if i_res2['freq'] != "2432":
raise Exception("Group formed on a different frequency than BSS")
hwsim_utils.test_connectivity(dev[0], hapd)
def test_autogo_with_bss_on_disallowed_chan(dev, apdev):
"""P2P channel selection: Autonomous GO with BSS on a disallowed channel"""
with HWSimRadio(n_channels=2) as (radio, iface):
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
wpas.interface_add(iface)
wpas.request("SET p2p_no_group_iface 0")
if wpas.get_mcc() < 2:
raise Exception("New radio does not support MCC")
try:
hapd = hostapd.add_ap(apdev[0]['ifname'], { "ssid": 'bss-2.4ghz',
"channel": '1' })
wpas.request("P2P_SET disallow_freq 2412")
wpas.connect("bss-2.4ghz", key_mgmt="NONE", scan_freq="2412")
res = autogo(wpas)
if res['freq'] == "2412":
raise Exception("GO set on a disallowed channel")
hwsim_utils.test_connectivity(wpas, hapd)
finally:
wpas.request("P2P_SET disallow_freq ")
def test_go_neg_with_bss_on_disallowed_chan(dev, apdev):
"""P2P channel selection: GO negotiation with station interface on a disallowed channel"""
with HWSimRadio(n_channels=2) as (radio, iface):
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
wpas.interface_add(iface)
wpas.request("SET p2p_no_group_iface 0")
if wpas.get_mcc() < 2:
raise Exception("New radio does not support MCC")
try:
hapd = hostapd.add_ap(apdev[0]['ifname'],
{ "ssid": 'bss-2.4ghz', "channel": '1' })
# make sure PBC overlap from old test cases is not maintained
dev[0].flush_scan_cache()
dev[1].flush_scan_cache()
wpas.connect("bss-2.4ghz", key_mgmt="NONE", scan_freq="2412")
wpas.request("P2P_SET disallow_freq 2412")
#wpas as GO
[i_res, r_res] = go_neg_pbc(i_dev=wpas, i_intent=10, r_dev=dev[1],
r_intent=1)
check_grpform_results(i_res, r_res)
if i_res['role'] != "GO":
raise Exception("GO not selected according to go_intent")
if i_res['freq'] == "2412":
raise Exception("Group formed on a disallowed channel")
hwsim_utils.test_connectivity(wpas, hapd)
wpas.remove_group(i_res['ifname'])
#wpas as client
[i_res2, r_res2] = go_neg_pbc(i_dev=wpas, i_intent=1, r_dev=dev[1],
r_intent=10)
check_grpform_results(i_res2, r_res2)
if i_res2['role'] != "client":
raise Exception("GO not selected according to go_intent")
if i_res2['freq'] == "2412":
raise Exception("Group formed on a disallowed channel")
hwsim_utils.test_connectivity(wpas, hapd)
finally:
wpas.request("P2P_SET disallow_freq ")
def test_autogo_force_diff_channel(dev, apdev):
"""P2P autonomous GO and station interface operate on different channels"""
with HWSimRadio(n_channels=2) as (radio, iface):
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
wpas.interface_add(iface)
if wpas.get_mcc() < 2:
raise Exception("New radio does not support MCC")
wpas.request("SET p2p_no_group_iface 0")
hapd = hostapd.add_ap(apdev[0]['ifname'],
{"ssid" : 'ap-test', "channel" : '1'})
wpas.connect("ap-test", key_mgmt = "NONE", scan_freq = "2412")
channels = { 2 : 2417, 5 : 2432, 9 : 2452 }
for key in channels:
res_go = autogo(wpas, channels[key])
hwsim_utils.test_connectivity(wpas, hapd)
if int(res_go['freq']) == 2412:
raise Exception("Group operation channel is: 2412 excepted: " + res_go['freq'])
wpas.remove_group(res_go['ifname'])
def test_go_neg_forced_freq_diff_than_bss_freq(dev, apdev):
"""P2P channel selection: GO negotiation with forced freq different than station interface"""
with HWSimRadio(n_channels=2) as (radio, iface):
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
wpas.interface_add(iface)
if wpas.get_mcc() < 2:
raise Exception("New radio does not support MCC")
# Clear possible PBC session overlap from previous test case
dev[1].flush_scan_cache()
wpas.request("SET p2p_no_group_iface 0")
hapd = hostapd.add_ap(apdev[0]['ifname'],
{ "country_code": 'US',
"ssid": 'bss-5ghz', "hw_mode": 'a',
"channel": '40' })
wpas.connect("bss-5ghz", key_mgmt="NONE", scan_freq="5200")
# GO and peer force the same freq, different than BSS freq,
# wpas to become GO
[i_res, r_res] = go_neg_pbc(i_dev=dev[1], i_intent=1, i_freq=5180,
r_dev=wpas, r_intent=14, r_freq=5180)
check_grpform_results(i_res, r_res)
if i_res['freq'] != "5180":
raise Exception("P2P group formed on unexpected frequency: " + i_res['freq'])
if r_res['role'] != "GO":
raise Exception("GO not selected according to go_intent")
hwsim_utils.test_connectivity(wpas, hapd)
wpas.remove_group(r_res['ifname'])
# GO and peer force the same freq, different than BSS freq, wpas to
# become client
[i_res2, r_res2] = go_neg_pbc(i_dev=dev[1], i_intent=14, i_freq=2422,
r_dev=wpas, r_intent=1, r_freq=2422)
check_grpform_results(i_res2, r_res2)
if i_res2['freq'] != "2422":
raise Exception("P2P group formed on unexpected frequency: " + i_res2['freq'])
if r_res2['role'] != "client":
raise Exception("GO not selected according to go_intent")
hwsim_utils.test_connectivity(wpas, hapd)
def test_go_pref_chan_bss_on_diff_chan(dev, apdev):
"""P2P channel selection: Station on different channel than GO configured pref channel"""
dev[0].request("SET p2p_no_group_iface 0")
try:
hapd = hostapd.add_ap(apdev[0]['ifname'], { "ssid": 'bss-2.4ghz',
"channel": '1' })
dev[0].request("SET p2p_pref_chan 81:2")
dev[0].connect("bss-2.4ghz", key_mgmt="NONE", scan_freq="2412")
res = autogo(dev[0])
if res['freq'] != "2412":
raise Exception("GO channel did not follow BSS")
hwsim_utils.test_connectivity(dev[0], hapd)
finally:
dev[0].request("SET p2p_pref_chan ")
def test_go_pref_chan_bss_on_disallowed_chan(dev, apdev):
"""P2P channel selection: Station interface on different channel than GO configured pref channel, and station channel is disallowed"""
with HWSimRadio(n_channels=2) as (radio, iface):
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
wpas.interface_add(iface)
if wpas.get_mcc() < 2:
raise Exception("New radio does not support MCC")
wpas.request("SET p2p_no_group_iface 0")
try:
hapd = hostapd.add_ap(apdev[0]['ifname'], { "ssid": 'bss-2.4ghz',
"channel": '1' })
wpas.request("P2P_SET disallow_freq 2412")
wpas.request("SET p2p_pref_chan 81:2")
wpas.connect("bss-2.4ghz", key_mgmt="NONE", scan_freq="2412")
res2 = autogo(wpas)
if res2['freq'] != "2417":
raise Exception("GO channel did not follow pref_chan configuration")
hwsim_utils.test_connectivity(wpas, hapd)
finally:
wpas.request("P2P_SET disallow_freq ")
wpas.request("SET p2p_pref_chan ")
def test_no_go_freq(dev, apdev):
"""P2P channel selection: no GO freq"""
try:
dev[0].request("SET p2p_no_go_freq 2412")
# dev[0] as client, channel 1 is ok
[i_res, r_res] = go_neg_pbc(i_dev=dev[0], i_intent=1,
r_dev=dev[1], r_intent=14, r_freq=2412)
check_grpform_results(i_res, r_res)
if i_res['freq'] != "2412":
raise Exception("P2P group not formed on forced freq")
dev[1].remove_group(r_res['ifname'])
fail = False
# dev[0] as GO, channel 1 is not allowed
try:
dev[0].request("SET p2p_no_go_freq 2412")
[i_res2, r_res2] = go_neg_pbc(i_dev=dev[0], i_intent=14,
r_dev=dev[1], r_intent=1, r_freq=2412)
check_grpform_results(i_res2, r_res2)
fail = True
except:
pass
if fail:
raise Exception("GO set on a disallowed freq")
finally:
dev[0].request("SET p2p_no_go_freq ")
def test_go_neg_peers_force_diff_freq(dev, apdev):
"""P2P channel selection when peers for different frequency"""
try:
[i_res2, r_res2] = go_neg_pbc(i_dev=dev[0], i_intent=14, i_freq=5180,
r_dev=dev[1], r_intent=0, r_freq=5200)
except Exception, e:
return
raise Exception("Unexpected group formation success")
def test_autogo_random_channel(dev, apdev):
"""P2P channel selection: GO instantiated on random channel 1, 6, 11"""
freqs = []
go_freqs = ["2412", "2437", "2462"]
for i in range(0, 20):
result = autogo(dev[0])
if result['freq'] not in go_freqs:
raise Exception("Unexpected frequency selected: " + result['freq'])
if result['freq'] not in freqs:
freqs.append(result['freq'])
if len(freqs) == 3:
break
dev[0].remove_group(result['ifname'])
if i == 20:
raise Exception("GO created 20 times and not all social channels were selected. freqs not selected: " + str(list(set(go_freqs) - set(freqs))))
def test_p2p_autogo_pref_chan_disallowed(dev, apdev):
"""P2P channel selection: GO preferred channels are disallowed"""
try:
dev[0].request("SET p2p_pref_chan 81:1,81:3,81:6,81:9,81:11")
dev[0].request("P2P_SET disallow_freq 2412,2422,2437,2452,2462")
for i in range(0, 5):
res = autogo(dev[0])
if res['freq'] in [ "2412", "2422", "2437", "2452", "2462" ]:
raise Exception("GO channel is disallowed")
dev[0].remove_group(res['ifname'])
finally:
dev[0].request("P2P_SET disallow_freq ")
dev[0].request("SET p2p_pref_chan ")
def test_p2p_autogo_pref_chan_not_in_regulatory(dev, apdev):
"""P2P channel selection: GO preferred channel not allowed in the regulatory rules"""
try:
set_country("US")
dev[0].request("SET p2p_pref_chan 124:149")
res = autogo(dev[0], persistent=True)
if res['freq'] != "5745":
raise Exception("Unexpected channel selected: " + res['freq'])
dev[0].remove_group(res['ifname'])
netw = dev[0].list_networks()
if len(netw) != 1:
raise Exception("Unexpected number of network blocks: " + str(netw))
id = netw[0]['id']
set_country("DE")
res = autogo(dev[0], persistent=id)
if res['freq'] == "5745":
raise Exception("Unexpected channel selected(2): " + res['freq'])
dev[0].remove_group(res['ifname'])
finally:
dev[0].request("SET p2p_pref_chan ")
set_country("00")
def run_autogo(dev, param):
if "OK" not in dev.global_request("P2P_GROUP_ADD " + param):
raise Exception("P2P_GROUP_ADD failed: " + param)
ev = dev.wait_global_event(["P2P-GROUP-STARTED"], timeout=10)
if ev is None:
raise Exception("GO start up timed out")
res = dev.group_form_result(ev)
dev.remove_group()
return res
def _test_autogo_ht_vht(dev):
res = run_autogo(dev[0], "ht40")
res = run_autogo(dev[0], "vht")
res = run_autogo(dev[0], "freq=2")
freq = int(res['freq'])
if freq < 2412 or freq > 2462:
raise Exception("Unexpected freq=2 channel: " + str(freq))
res = run_autogo(dev[0], "freq=5")
freq = int(res['freq'])
if freq < 5000 or freq >= 6000:
raise Exception("Unexpected freq=5 channel: " + str(freq))
res = run_autogo(dev[0], "freq=5 ht40 vht")
print res
freq = int(res['freq'])
if freq < 5000 or freq >= 6000:
raise Exception("Unexpected freq=5 ht40 vht channel: " + str(freq))
def test_autogo_ht_vht(dev):
"""P2P autonomous GO with HT/VHT parameters"""
try:
set_country("US")
_test_autogo_ht_vht(dev)
finally:
set_country("00")