[thirdparty/hostap.git] / tests / hwsim / test_ap_acs.py

# Test cases for automatic channel selection with hostapd
# Copyright (c) 2013-2015, 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 time

import hostapd
from utils import skip_with_fips
from test_ap_ht import clear_scan_cache

def force_prev_ap_on_24g(ap):
    # For now, make sure the last operating channel was on 2.4 GHz band to get
    # sufficient survey data from mac80211_hwsim.
    hostapd.add_ap(ap, { "ssid": "open" })
    time.sleep(0.1)
    hostapd.remove_bss(ap)

def force_prev_ap_on_5g(ap):
    # For now, make sure the last operating channel was on 5 GHz band to get
    # sufficient survey data from mac80211_hwsim.
    hostapd.add_ap(ap, { "ssid": "open", "hw_mode": "a",
                         "channel": "36", "country_code": "US" })
    time.sleep(0.1)
    hostapd.remove_bss(ap)

def wait_acs(hapd):
    ev = hapd.wait_event(["ACS-STARTED", "ACS-COMPLETED", "ACS-FAILED",
                          "AP-ENABLED", "AP-DISABLED"], timeout=5)
    if not ev:
        raise Exception("ACS start timed out")
    if "ACS-STARTED" not in ev:
        raise Exception("Unexpected ACS event: " + ev)

    state = hapd.get_status_field("state")
    if state != "ACS":
        raise Exception("Unexpected interface state")

    ev = hapd.wait_event(["ACS-COMPLETED", "ACS-FAILED", "AP-ENABLED",
                          "AP-DISABLED"], timeout=20)
    if not ev:
        raise Exception("ACS timed out")
    if "ACS-COMPLETED" not in ev:
        raise Exception("Unexpected ACS event: " + ev)

    ev = hapd.wait_event(["AP-ENABLED", "AP-DISABLED"], timeout=5)
    if not ev:
        raise Exception("AP setup timed out")
    if "AP-ENABLED" not in ev:
        raise Exception("Unexpected ACS event: " + ev)

    state = hapd.get_status_field("state")
    if state != "ENABLED":
        raise Exception("Unexpected interface state")

def test_ap_acs(dev, apdev):
    """Automatic channel selection"""
    force_prev_ap_on_24g(apdev[0])
    params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
    params['channel'] = '0'
    hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
    wait_acs(hapd)

    freq = hapd.get_status_field("freq")
    if int(freq) < 2400:
        raise Exception("Unexpected frequency")

    dev[0].connect("test-acs", psk="12345678", scan_freq=freq)

def test_ap_acs_chanlist(dev, apdev):
    """Automatic channel selection with chanlist set"""
    force_prev_ap_on_24g(apdev[0])
    params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
    params['channel'] = '0'
    params['chanlist'] = '1 6 11'
    hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
    wait_acs(hapd)

    freq = hapd.get_status_field("freq")
    if int(freq) < 2400:
        raise Exception("Unexpected frequency")

    dev[0].connect("test-acs", psk="12345678", scan_freq=freq)

def test_ap_multi_bss_acs(dev, apdev):
    """hostapd start with a multi-BSS configuration file using ACS"""
    skip_with_fips(dev[0])
    force_prev_ap_on_24g(apdev[0])

    # start the actual test
    hapd = hostapd.add_iface(apdev[0], 'multi-bss-acs.conf')
    hapd.enable()
    wait_acs(hapd)

    freq = hapd.get_status_field("freq")
    if int(freq) < 2400:
        raise Exception("Unexpected frequency")

    dev[0].connect("bss-1", key_mgmt="NONE", scan_freq=freq)
    dev[1].connect("bss-2", psk="12345678", scan_freq=freq)
    dev[2].connect("bss-3", psk="qwertyuiop", scan_freq=freq)

def test_ap_acs_40mhz(dev, apdev):
    """Automatic channel selection for 40 MHz channel"""
    clear_scan_cache(apdev[0])
    force_prev_ap_on_24g(apdev[0])
    params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
    params['channel'] = '0'
    params['ht_capab'] = '[HT40+]'
    hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
    wait_acs(hapd)

    freq = hapd.get_status_field("freq")
    if int(freq) < 2400:
        raise Exception("Unexpected frequency")
    sec = hapd.get_status_field("secondary_channel")
    if int(sec) == 0:
        raise Exception("Secondary channel not set")

    dev[0].connect("test-acs", psk="12345678", scan_freq=freq)

def test_ap_acs_40mhz_minus(dev, apdev):
    """Automatic channel selection for HT40- channel"""
    clear_scan_cache(apdev[0])
    force_prev_ap_on_24g(apdev[0])
    params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
    params['channel'] = '0'
    params['ht_capab'] = '[HT40-]'
    params['acs_num_scans'] = '1'
    params['chanlist'] = '1 11'
    hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
    ev = hapd.wait_event(["AP-ENABLED", "AP-DISABLED"], timeout=10)
    if not ev:
        raise Exception("ACS start timed out")
    # HT40- is not currently supported in hostapd ACS, so do not try to connect
    # or verify that this operation succeeded.

def test_ap_acs_5ghz(dev, apdev):
    """Automatic channel selection on 5 GHz"""
    try:
        hapd = None
        force_prev_ap_on_5g(apdev[0])
        params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
        params['hw_mode'] = 'a'
        params['channel'] = '0'
        params['country_code'] = 'US'
        hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
        wait_acs(hapd)
        freq = hapd.get_status_field("freq")
        if int(freq) < 5000:
            raise Exception("Unexpected frequency")

        dev[0].connect("test-acs", psk="12345678", scan_freq=freq)

    finally:
        dev[0].request("DISCONNECT")
        if hapd:
            hapd.request("DISABLE")
        hostapd.cmd_execute(apdev[0], ['iw', 'reg', 'set', '00'])
        dev[0].flush_scan_cache()

def test_ap_acs_5ghz_40mhz(dev, apdev):
    """Automatic channel selection on 5 GHz for 40 MHz channel"""
    try:
        hapd = None
        force_prev_ap_on_5g(apdev[0])
        params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
        params['hw_mode'] = 'a'
        params['channel'] = '0'
        params['ht_capab'] = '[HT40+]'
        params['country_code'] = 'US'
        hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
        wait_acs(hapd)
        freq = hapd.get_status_field("freq")
        if int(freq) < 5000:
            raise Exception("Unexpected frequency")

        sec = hapd.get_status_field("secondary_channel")
        if int(sec) == 0:
            raise Exception("Secondary channel not set")

        dev[0].connect("test-acs", psk="12345678", scan_freq=freq)

    finally:
        dev[0].request("DISCONNECT")
        if hapd:
            hapd.request("DISABLE")
        hostapd.cmd_execute(apdev[0], ['iw', 'reg', 'set', '00'])
        dev[0].flush_scan_cache()

def test_ap_acs_vht(dev, apdev):
    """Automatic channel selection for VHT"""
    try:
        hapd = None
        force_prev_ap_on_5g(apdev[0])
        params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
        params['hw_mode'] = 'a'
        params['channel'] = '0'
        params['ht_capab'] = '[HT40+]'
        params['country_code'] = 'US'
        params['ieee80211ac'] = '1'
        params['vht_oper_chwidth'] = '1'
        hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
        wait_acs(hapd)
        freq = hapd.get_status_field("freq")
        if int(freq) < 5000:
            raise Exception("Unexpected frequency")

        sec = hapd.get_status_field("secondary_channel")
        if int(sec) == 0:
            raise Exception("Secondary channel not set")

        dev[0].connect("test-acs", psk="12345678", scan_freq=freq)

    finally:
        dev[0].request("DISCONNECT")
        if hapd:
            hapd.request("DISABLE")
        hostapd.cmd_execute(apdev[0], ['iw', 'reg', 'set', '00'])
        dev[0].flush_scan_cache()

def test_ap_acs_vht40(dev, apdev):
    """Automatic channel selection for VHT40"""
    try:
        hapd = None
        force_prev_ap_on_5g(apdev[0])
        params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
        params['hw_mode'] = 'a'
        params['channel'] = '0'
        params['ht_capab'] = '[HT40+]'
        params['country_code'] = 'US'
        params['ieee80211ac'] = '1'
        params['vht_oper_chwidth'] = '0'
        params['acs_num_scans'] = '1'
        params['chanlist'] = '36 149'
        hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
        wait_acs(hapd)
        freq = hapd.get_status_field("freq")
        if int(freq) < 5000:
            raise Exception("Unexpected frequency")

        sec = hapd.get_status_field("secondary_channel")
        if int(sec) == 0:
            raise Exception("Secondary channel not set")

        dev[0].connect("test-acs", psk="12345678", scan_freq=freq)

    finally:
        dev[0].request("DISCONNECT")
        if hapd:
            hapd.request("DISABLE")
        hostapd.cmd_execute(apdev[0], ['iw', 'reg', 'set', '00'])
        dev[0].flush_scan_cache()

def test_ap_acs_bias(dev, apdev):
    """Automatic channel selection with bias values"""
    force_prev_ap_on_24g(apdev[0])
    params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
    params['channel'] = '0'
    params['acs_chan_bias'] = '1:0.8 3:1.2 6:0.7 11:0.8'
    hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
    wait_acs(hapd)

    freq = hapd.get_status_field("freq")
    if int(freq) < 2400:
        raise Exception("Unexpected frequency")

    dev[0].connect("test-acs", psk="12345678", scan_freq=freq)

def test_ap_acs_survey(dev, apdev):
    """Automatic channel selection using acs_survey parameter"""
    force_prev_ap_on_24g(apdev[0])
    params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
    params['channel'] = 'acs_survey'
    params['acs_num_scans'] = '1'
    hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
    wait_acs(hapd)

    freq = hapd.get_status_field("freq")
    if int(freq) < 2400:
        raise Exception("Unexpected frequency")

    dev[0].connect("test-acs", psk="12345678", scan_freq=freq)
Commit	Line	Data
b47750be	1	# Test cases for automatic channel selection with hostapd
a1eabc74	2	# Copyright (c) 2013-2015, Jouni Malinen <j@w1.fi>
b47750be JM	3	#
	4	# This software may be distributed under the terms of the BSD license.
	5	# See README for more details.
	6
	7	import logging
	8	logger = logging.getLogger()
ce5d69ac	9	import time
b47750be JM	10
b47750be JM	11	import hostapd
a1eabc74	12	from utils import skip_with_fips
0860b219	13	from test_ap_ht import clear_scan_cache
b47750be	14
19ec6070 JM	15	def force_prev_ap_on_24g(ap):
	16	# For now, make sure the last operating channel was on 2.4 GHz band to get
	17	# sufficient survey data from mac80211_hwsim.
afc26df2	18	hostapd.add_ap(ap, { "ssid": "open" })
19ec6070	19	time.sleep(0.1)
1728a2e7	20	hostapd.remove_bss(ap)
19ec6070 JM	21
	22	def force_prev_ap_on_5g(ap):
	23	# For now, make sure the last operating channel was on 5 GHz band to get
	24	# sufficient survey data from mac80211_hwsim.
afc26df2 JD	25	hostapd.add_ap(ap, { "ssid": "open", "hw_mode": "a",
afc26df2 JD	26	"channel": "36", "country_code": "US" })
19ec6070	27	time.sleep(0.1)
1728a2e7	28	hostapd.remove_bss(ap)
19ec6070	29
b47750be JM	30	def wait_acs(hapd):
b47750be JM	31	ev = hapd.wait_event(["ACS-STARTED", "ACS-COMPLETED", "ACS-FAILED",
b0159308	32	"AP-ENABLED", "AP-DISABLED"], timeout=5)
b47750be JM	33	if not ev:
	34	raise Exception("ACS start timed out")
	35	if "ACS-STARTED" not in ev:
b0159308	36	raise Exception("Unexpected ACS event: " + ev)
b47750be JM	37
	38	state = hapd.get_status_field("state")
	39	if state != "ACS":
	40	raise Exception("Unexpected interface state")
	41
b0159308 JM	42	ev = hapd.wait_event(["ACS-COMPLETED", "ACS-FAILED", "AP-ENABLED",
b0159308 JM	43	"AP-DISABLED"], timeout=20)
b47750be JM	44	if not ev:
	45	raise Exception("ACS timed out")
	46	if "ACS-COMPLETED" not in ev:
b0159308	47	raise Exception("Unexpected ACS event: " + ev)
b47750be	48
b0159308	49	ev = hapd.wait_event(["AP-ENABLED", "AP-DISABLED"], timeout=5)
b47750be JM	50	if not ev:
b47750be JM	51	raise Exception("AP setup timed out")
b0159308 JM	52	if "AP-ENABLED" not in ev:
b0159308 JM	53	raise Exception("Unexpected ACS event: " + ev)
b47750be JM	54
	55	state = hapd.get_status_field("state")
	56	if state != "ENABLED":
	57	raise Exception("Unexpected interface state")
	58
	59	def test_ap_acs(dev, apdev):
	60	"""Automatic channel selection"""
19ec6070	61	force_prev_ap_on_24g(apdev[0])
b47750be JM	62	params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
b47750be JM	63	params['channel'] = '0'
8b8a1864	64	hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
b47750be JM	65	wait_acs(hapd)
	66
	67	freq = hapd.get_status_field("freq")
	68	if int(freq) < 2400:
	69	raise Exception("Unexpected frequency")
	70
	71	dev[0].connect("test-acs", psk="12345678", scan_freq=freq)
	72
75e41ab7 JM	73	def test_ap_acs_chanlist(dev, apdev):
	74	"""Automatic channel selection with chanlist set"""
	75	force_prev_ap_on_24g(apdev[0])
	76	params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
	77	params['channel'] = '0'
	78	params['chanlist'] = '1 6 11'
8b8a1864	79	hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
75e41ab7 JM	80	wait_acs(hapd)
	81
	82	freq = hapd.get_status_field("freq")
	83	if int(freq) < 2400:
	84	raise Exception("Unexpected frequency")
	85
	86	dev[0].connect("test-acs", psk="12345678", scan_freq=freq)
	87
b47750be JM	88	def test_ap_multi_bss_acs(dev, apdev):
b47750be JM	89	"""hostapd start with a multi-BSS configuration file using ACS"""
a1eabc74	90	skip_with_fips(dev[0])
19ec6070	91	force_prev_ap_on_24g(apdev[0])
ce5d69ac JM	92
ce5d69ac JM	93	# start the actual test
50e49cd2	94	hapd = hostapd.add_iface(apdev[0], 'multi-bss-acs.conf')
b47750be JM	95	hapd.enable()
	96	wait_acs(hapd)
	97
	98	freq = hapd.get_status_field("freq")
	99	if int(freq) < 2400:
	100	raise Exception("Unexpected frequency")
	101
	102	dev[0].connect("bss-1", key_mgmt="NONE", scan_freq=freq)
	103	dev[1].connect("bss-2", psk="12345678", scan_freq=freq)
	104	dev[2].connect("bss-3", psk="qwertyuiop", scan_freq=freq)
b0159308 JM	105
	106	def test_ap_acs_40mhz(dev, apdev):
	107	"""Automatic channel selection for 40 MHz channel"""
cb3c0d96	108	clear_scan_cache(apdev[0])
19ec6070	109	force_prev_ap_on_24g(apdev[0])
b0159308 JM	110	params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
	111	params['channel'] = '0'
	112	params['ht_capab'] = '[HT40+]'
8b8a1864	113	hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
b0159308 JM	114	wait_acs(hapd)
	115
	116	freq = hapd.get_status_field("freq")
	117	if int(freq) < 2400:
	118	raise Exception("Unexpected frequency")
	119	sec = hapd.get_status_field("secondary_channel")
	120	if int(sec) == 0:
	121	raise Exception("Secondary channel not set")
	122
	123	dev[0].connect("test-acs", psk="12345678", scan_freq=freq)
	124
5f45caae JM	125	def test_ap_acs_40mhz_minus(dev, apdev):
	126	"""Automatic channel selection for HT40- channel"""
	127	clear_scan_cache(apdev[0])
	128	force_prev_ap_on_24g(apdev[0])
	129	params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
	130	params['channel'] = '0'
	131	params['ht_capab'] = '[HT40-]'
	132	params['acs_num_scans'] = '1'
	133	params['chanlist'] = '1 11'
	134	hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
	135	ev = hapd.wait_event(["AP-ENABLED", "AP-DISABLED"], timeout=10)
	136	if not ev:
	137	raise Exception("ACS start timed out")
	138	# HT40- is not currently supported in hostapd ACS, so do not try to connect
	139	# or verify that this operation succeeded.
	140
b0159308 JM	141	def test_ap_acs_5ghz(dev, apdev):
	142	"""Automatic channel selection on 5 GHz"""
	143	try:
9d7fdac5	144	hapd = None
19ec6070	145	force_prev_ap_on_5g(apdev[0])
b0159308 JM	146	params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
	147	params['hw_mode'] = 'a'
	148	params['channel'] = '0'
	149	params['country_code'] = 'US'
8b8a1864	150	hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
19ec6070 JM	151	wait_acs(hapd)
	152	freq = hapd.get_status_field("freq")
	153	if int(freq) < 5000:
	154	raise Exception("Unexpected frequency")
	155
	156	dev[0].connect("test-acs", psk="12345678", scan_freq=freq)
b0159308 JM	157
b0159308 JM	158	finally:
9d7fdac5 JM	159	dev[0].request("DISCONNECT")
	160	if hapd:
	161	hapd.request("DISABLE")
a548c37b	162	hostapd.cmd_execute(apdev[0], ['iw', 'reg', 'set', '00'])
9d7fdac5	163	dev[0].flush_scan_cache()
b0159308 JM	164
	165	def test_ap_acs_5ghz_40mhz(dev, apdev):
	166	"""Automatic channel selection on 5 GHz for 40 MHz channel"""
	167	try:
9d7fdac5	168	hapd = None
19ec6070	169	force_prev_ap_on_5g(apdev[0])
b0159308 JM	170	params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
	171	params['hw_mode'] = 'a'
	172	params['channel'] = '0'
	173	params['ht_capab'] = '[HT40+]'
	174	params['country_code'] = 'US'
8b8a1864	175	hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
19ec6070 JM	176	wait_acs(hapd)
	177	freq = hapd.get_status_field("freq")
	178	if int(freq) < 5000:
	179	raise Exception("Unexpected frequency")
	180
	181	sec = hapd.get_status_field("secondary_channel")
	182	if int(sec) == 0:
	183	raise Exception("Secondary channel not set")
	184
	185	dev[0].connect("test-acs", psk="12345678", scan_freq=freq)
b0159308 JM	186
b0159308 JM	187	finally:
9d7fdac5 JM	188	dev[0].request("DISCONNECT")
	189	if hapd:
	190	hapd.request("DISABLE")
a548c37b	191	hostapd.cmd_execute(apdev[0], ['iw', 'reg', 'set', '00'])
9d7fdac5	192	dev[0].flush_scan_cache()
b0159308 JM	193
	194	def test_ap_acs_vht(dev, apdev):
	195	"""Automatic channel selection for VHT"""
	196	try:
9d7fdac5	197	hapd = None
19ec6070	198	force_prev_ap_on_5g(apdev[0])
b0159308 JM	199	params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
	200	params['hw_mode'] = 'a'
	201	params['channel'] = '0'
	202	params['ht_capab'] = '[HT40+]'
	203	params['country_code'] = 'US'
	204	params['ieee80211ac'] = '1'
	205	params['vht_oper_chwidth'] = '1'
8b8a1864	206	hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
19ec6070 JM	207	wait_acs(hapd)
	208	freq = hapd.get_status_field("freq")
	209	if int(freq) < 5000:
	210	raise Exception("Unexpected frequency")
	211
	212	sec = hapd.get_status_field("secondary_channel")
	213	if int(sec) == 0:
	214	raise Exception("Secondary channel not set")
	215
	216	dev[0].connect("test-acs", psk="12345678", scan_freq=freq)
b0159308 JM	217
b0159308 JM	218	finally:
9d7fdac5 JM	219	dev[0].request("DISCONNECT")
	220	if hapd:
	221	hapd.request("DISABLE")
a548c37b	222	hostapd.cmd_execute(apdev[0], ['iw', 'reg', 'set', '00'])
9d7fdac5	223	dev[0].flush_scan_cache()
65013c93	224
31b398e0 JM	225	def test_ap_acs_vht40(dev, apdev):
	226	"""Automatic channel selection for VHT40"""
	227	try:
	228	hapd = None
	229	force_prev_ap_on_5g(apdev[0])
	230	params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
	231	params['hw_mode'] = 'a'
	232	params['channel'] = '0'
	233	params['ht_capab'] = '[HT40+]'
	234	params['country_code'] = 'US'
	235	params['ieee80211ac'] = '1'
	236	params['vht_oper_chwidth'] = '0'
	237	params['acs_num_scans'] = '1'
	238	params['chanlist'] = '36 149'
	239	hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
	240	wait_acs(hapd)
	241	freq = hapd.get_status_field("freq")
	242	if int(freq) < 5000:
	243	raise Exception("Unexpected frequency")
	244
	245	sec = hapd.get_status_field("secondary_channel")
	246	if int(sec) == 0:
	247	raise Exception("Secondary channel not set")
	248
	249	dev[0].connect("test-acs", psk="12345678", scan_freq=freq)
	250
	251	finally:
	252	dev[0].request("DISCONNECT")
	253	if hapd:
	254	hapd.request("DISABLE")
	255	hostapd.cmd_execute(apdev[0], ['iw', 'reg', 'set', '00'])
	256	dev[0].flush_scan_cache()
	257
65013c93 JM	258	def test_ap_acs_bias(dev, apdev):
65013c93 JM	259	"""Automatic channel selection with bias values"""
19ec6070	260	force_prev_ap_on_24g(apdev[0])
65013c93 JM	261	params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
	262	params['channel'] = '0'
	263	params['acs_chan_bias'] = '1:0.8 3:1.2 6:0.7 11:0.8'
8b8a1864	264	hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
65013c93 JM	265	wait_acs(hapd)
	266
	267	freq = hapd.get_status_field("freq")
	268	if int(freq) < 2400:
	269	raise Exception("Unexpected frequency")
	270
	271	dev[0].connect("test-acs", psk="12345678", scan_freq=freq)
5f37d1b3 JM	272
	273	def test_ap_acs_survey(dev, apdev):
	274	"""Automatic channel selection using acs_survey parameter"""
	275	force_prev_ap_on_24g(apdev[0])
	276	params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
	277	params['channel'] = 'acs_survey'
	278	params['acs_num_scans'] = '1'
	279	hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
	280	wait_acs(hapd)
	281
	282	freq = hapd.get_status_field("freq")
	283	if int(freq) < 2400:
	284	raise Exception("Unexpected frequency")
	285
	286	dev[0].connect("test-acs", psk="12345678", scan_freq=freq)