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fragattacks/tests/hwsim/test_ap_ht.py
Jouni Malinen 528a7d22d0 tests: VHT/HT preference in BSS selection 
Signed-off-by: Jouni Malinen <j@w1.fi>
2015-02-22 11:47:28 +02:00

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# Test cases for HT operations with hostapd
# Copyright (c) 2013-2014, Jouni Malinen <j@w1.fi>
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.
import time
import logging
logger = logging.getLogger()
import struct
import subprocess
import hostapd
from utils import HwsimSkip, alloc_fail
import hwsim_utils
from test_ap_csa import csa_supported
def clear_scan_cache(ifname):
subprocess.call(['ifconfig', ifname, 'up'])
subprocess.call(['iw', ifname, 'scan', 'freq', '2412', 'flush'])
time.sleep(0.1)
subprocess.call(['ifconfig', ifname, 'down'])
def test_ap_ht40_scan(dev, apdev):
"""HT40 co-ex scan"""
clear_scan_cache(apdev[0]['ifname'])
params = { "ssid": "test-ht40",
"channel": "5",
"ht_capab": "[HT40-]"}
hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
state = hapd.get_status_field("state")
if state != "HT_SCAN":
time.sleep(0.1)
state = hapd.get_status_field("state")
if state != "HT_SCAN":
raise Exception("Unexpected interface state - expected HT_SCAN")
ev = hapd.wait_event(["AP-ENABLED"], timeout=10)
if not ev:
raise Exception("AP setup timed out")
state = hapd.get_status_field("state")
if state != "ENABLED":
raise Exception("Unexpected interface state - expected ENABLED")
freq = hapd.get_status_field("freq")
if freq != "2432":
raise Exception("Unexpected frequency")
pri = hapd.get_status_field("channel")
if pri != "5":
raise Exception("Unexpected primary channel")
sec = hapd.get_status_field("secondary_channel")
if sec != "-1":
raise Exception("Unexpected secondary channel")
dev[0].connect("test-ht40", key_mgmt="NONE", scan_freq=freq)
def test_ap_ht40_scan_conflict(dev, apdev):
"""HT40 co-ex scan conflict"""
clear_scan_cache(apdev[0]['ifname'])
params = { "ssid": "test-ht40",
"channel": "6",
"ht_capab": "[HT40+]"}
hostapd.add_ap(apdev[1]['ifname'], params)
params = { "ssid": "test-ht40",
"channel": "5",
"ht_capab": "[HT40-]"}
hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
state = hapd.get_status_field("state")
if state != "HT_SCAN":
time.sleep(0.1)
state = hapd.get_status_field("state")
if state != "HT_SCAN":
raise Exception("Unexpected interface state - expected HT_SCAN")
ev = hapd.wait_event(["AP-ENABLED"], timeout=10)
if not ev:
raise Exception("AP setup timed out")
state = hapd.get_status_field("state")
if state != "ENABLED":
raise Exception("Unexpected interface state - expected ENABLED")
freq = hapd.get_status_field("freq")
if freq != "2432":
raise Exception("Unexpected frequency")
pri = hapd.get_status_field("channel")
if pri != "5":
raise Exception("Unexpected primary channel")
sec = hapd.get_status_field("secondary_channel")
if sec != "0":
raise Exception("Unexpected secondary channel: " + sec)
dev[0].connect("test-ht40", key_mgmt="NONE", scan_freq=freq)
def test_ap_ht40_scan_legacy_conflict(dev, apdev):
"""HT40 co-ex scan conflict with legacy 20 MHz AP"""
clear_scan_cache(apdev[0]['ifname'])
params = { "ssid": "legacy-20",
"channel": "7", "ieee80211n": "0" }
hostapd.add_ap(apdev[1]['ifname'], params)
params = { "ssid": "test-ht40",
"channel": "5",
"ht_capab": "[HT40-]"}
hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
state = hapd.get_status_field("state")
if state != "HT_SCAN":
time.sleep(0.1)
state = hapd.get_status_field("state")
if state != "HT_SCAN":
raise Exception("Unexpected interface state - expected HT_SCAN")
ev = hapd.wait_event(["AP-ENABLED"], timeout=10)
if not ev:
raise Exception("AP setup timed out")
state = hapd.get_status_field("state")
if state != "ENABLED":
raise Exception("Unexpected interface state - expected ENABLED")
freq = hapd.get_status_field("freq")
if freq != "2432":
raise Exception("Unexpected frequency: " + freq)
pri = hapd.get_status_field("channel")
if pri != "5":
raise Exception("Unexpected primary channel: " + pri)
sec = hapd.get_status_field("secondary_channel")
if sec != "0":
raise Exception("Unexpected secondary channel: " + sec)
dev[0].connect("test-ht40", key_mgmt="NONE", scan_freq=freq)
def test_ap_ht40_scan_match(dev, apdev):
"""HT40 co-ex scan matching configuration"""
clear_scan_cache(apdev[0]['ifname'])
params = { "ssid": "test-ht40",
"channel": "5",
"ht_capab": "[HT40-]"}
hostapd.add_ap(apdev[1]['ifname'], params)
params = { "ssid": "test-ht40",
"channel": "5",
"ht_capab": "[HT40-]"}
hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
state = hapd.get_status_field("state")
if state != "HT_SCAN":
time.sleep(0.1)
state = hapd.get_status_field("state")
if state != "HT_SCAN":
raise Exception("Unexpected interface state - expected HT_SCAN")
ev = hapd.wait_event(["AP-ENABLED"], timeout=10)
if not ev:
raise Exception("AP setup timed out")
state = hapd.get_status_field("state")
if state != "ENABLED":
raise Exception("Unexpected interface state - expected ENABLED")
freq = hapd.get_status_field("freq")
if freq != "2432":
raise Exception("Unexpected frequency")
pri = hapd.get_status_field("channel")
if pri != "5":
raise Exception("Unexpected primary channel")
sec = hapd.get_status_field("secondary_channel")
if sec != "-1":
raise Exception("Unexpected secondary channel: " + sec)
dev[0].connect("test-ht40", key_mgmt="NONE", scan_freq=freq)
def test_ap_ht40_5ghz_match(dev, apdev):
"""HT40 co-ex scan on 5 GHz with matching pri/sec channel"""
clear_scan_cache(apdev[0]['ifname'])
try:
hapd = None
hapd2 = None
params = { "ssid": "test-ht40",
"hw_mode": "a",
"channel": "36",
"country_code": "US",
"ht_capab": "[HT40+]"}
hapd2 = hostapd.add_ap(apdev[1]['ifname'], params)
params = { "ssid": "test-ht40",
"hw_mode": "a",
"channel": "36",
"ht_capab": "[HT40+]"}
hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
state = hapd.get_status_field("state")
if state != "HT_SCAN":
time.sleep(0.1)
state = hapd.get_status_field("state")
if state != "HT_SCAN":
raise Exception("Unexpected interface state - expected HT_SCAN")
ev = hapd.wait_event(["AP-ENABLED"], timeout=10)
if not ev:
raise Exception("AP setup timed out")
state = hapd.get_status_field("state")
if state != "ENABLED":
raise Exception("Unexpected interface state - expected ENABLED")
freq = hapd.get_status_field("freq")
if freq != "5180":
raise Exception("Unexpected frequency")
pri = hapd.get_status_field("channel")
if pri != "36":
raise Exception("Unexpected primary channel")
sec = hapd.get_status_field("secondary_channel")
if sec != "1":
raise Exception("Unexpected secondary channel: " + sec)
dev[0].connect("test-ht40", key_mgmt="NONE", scan_freq=freq)
finally:
dev[0].request("DISCONNECT")
if hapd:
hapd.request("DISABLE")
if hapd2:
hapd2.request("DISABLE")
subprocess.call(['iw', 'reg', 'set', '00'])
dev[0].flush_scan_cache()
def test_ap_ht40_5ghz_switch(dev, apdev):
"""HT40 co-ex scan on 5 GHz switching pri/sec channel"""
clear_scan_cache(apdev[0]['ifname'])
try:
hapd = None
hapd2 = None
params = { "ssid": "test-ht40",
"hw_mode": "a",
"channel": "36",
"country_code": "US",
"ht_capab": "[HT40+]"}
hapd2 = hostapd.add_ap(apdev[1]['ifname'], params)
params = { "ssid": "test-ht40",
"hw_mode": "a",
"channel": "40",
"ht_capab": "[HT40-]"}
hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
state = hapd.get_status_field("state")
if state != "HT_SCAN":
time.sleep(0.1)
state = hapd.get_status_field("state")
if state != "HT_SCAN":
raise Exception("Unexpected interface state - expected HT_SCAN")
ev = hapd.wait_event(["AP-ENABLED"], timeout=10)
if not ev:
raise Exception("AP setup timed out")
state = hapd.get_status_field("state")
if state != "ENABLED":
raise Exception("Unexpected interface state - expected ENABLED")
freq = hapd.get_status_field("freq")
if freq != "5180":
raise Exception("Unexpected frequency: " + freq)
pri = hapd.get_status_field("channel")
if pri != "36":
raise Exception("Unexpected primary channel: " + pri)
sec = hapd.get_status_field("secondary_channel")
if sec != "1":
raise Exception("Unexpected secondary channel: " + sec)
dev[0].connect("test-ht40", key_mgmt="NONE", scan_freq=freq)
finally:
dev[0].request("DISCONNECT")
if hapd:
hapd.request("DISABLE")
if hapd2:
hapd2.request("DISABLE")
subprocess.call(['iw', 'reg', 'set', '00'])
def test_ap_ht40_5ghz_switch2(dev, apdev):
"""HT40 co-ex scan on 5 GHz switching pri/sec channel (2)"""
clear_scan_cache(apdev[0]['ifname'])
try:
hapd = None
hapd2 = None
params = { "ssid": "test-ht40",
"hw_mode": "a",
"channel": "36",
"country_code": "US",
"ht_capab": "[HT40+]"}
hapd2 = hostapd.add_ap(apdev[1]['ifname'], params)
id = dev[0].add_network()
dev[0].set_network(id, "mode", "2")
dev[0].set_network_quoted(id, "ssid", "wpas-ap-open")
dev[0].set_network(id, "key_mgmt", "NONE")
dev[0].set_network(id, "frequency", "5200")
dev[0].set_network(id, "scan_freq", "5200")
dev[0].select_network(id)
time.sleep(1)
params = { "ssid": "test-ht40",
"hw_mode": "a",
"channel": "40",
"ht_capab": "[HT40-]"}
hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
state = hapd.get_status_field("state")
if state != "HT_SCAN":
time.sleep(0.1)
state = hapd.get_status_field("state")
if state != "HT_SCAN":
raise Exception("Unexpected interface state - expected HT_SCAN")
ev = hapd.wait_event(["AP-ENABLED"], timeout=10)
if not ev:
raise Exception("AP setup timed out")
state = hapd.get_status_field("state")
if state != "ENABLED":
raise Exception("Unexpected interface state - expected ENABLED")
freq = hapd.get_status_field("freq")
if freq != "5180":
raise Exception("Unexpected frequency: " + freq)
pri = hapd.get_status_field("channel")
if pri != "36":
raise Exception("Unexpected primary channel: " + pri)
sec = hapd.get_status_field("secondary_channel")
if sec != "1":
raise Exception("Unexpected secondary channel: " + sec)
dev[0].connect("test-ht40", key_mgmt="NONE", scan_freq=freq)
finally:
dev[0].request("DISCONNECT")
if hapd:
hapd.request("DISABLE")
if hapd2:
hapd2.request("DISABLE")
subprocess.call(['iw', 'reg', 'set', '00'])
dev[0].flush_scan_cache()
def test_obss_scan(dev, apdev):
"""Overlapping BSS scan request"""
params = { "ssid": "obss-scan",
"channel": "6",
"ht_capab": "[HT40-]",
"obss_interval": "10" }
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
params = { "ssid": "another-bss",
"channel": "9",
"ieee80211n": "0" }
hostapd.add_ap(apdev[1]['ifname'], params)
dev[0].connect("obss-scan", key_mgmt="NONE", scan_freq="2437")
hapd.set("ext_mgmt_frame_handling", "1")
logger.info("Waiting for OBSS scan to occur")
ev = dev[0].wait_event(["CTRL-EVENT-SCAN-STARTED"], timeout=15)
if ev is None:
raise Exception("Timed out while waiting for OBSS scan to start")
ev = dev[0].wait_event(["CTRL-EVENT-SCAN-RESULTS"], timeout=10)
if ev is None:
raise Exception("Timed out while waiting for OBSS scan results")
received = False
for i in range(0, 4):
frame = hapd.mgmt_rx(timeout=5)
if frame is None:
raise Exception("MGMT RX wait timed out")
if frame['subtype'] != 13:
continue
payload = frame['payload']
if len(payload) < 3:
continue
(category, action, ie) = struct.unpack('BBB', payload[0:3])
if category != 4:
continue
if action != 0:
continue
if ie == 72:
logger.info("20/40 BSS Coexistence report received")
received = True
break
if not received:
raise Exception("20/40 BSS Coexistence report not seen")
def test_obss_scan_40_intolerant(dev, apdev):
"""Overlapping BSS scan request with 40 MHz intolerant AP"""
params = { "ssid": "obss-scan",
"channel": "6",
"ht_capab": "[HT40-]",
"obss_interval": "10" }
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
params = { "ssid": "another-bss",
"channel": "7",
"ht_capab": "[40-INTOLERANT]" }
hostapd.add_ap(apdev[1]['ifname'], params)
dev[0].connect("obss-scan", key_mgmt="NONE", scan_freq="2437")
hapd.set("ext_mgmt_frame_handling", "1")
logger.info("Waiting for OBSS scan to occur")
ev = dev[0].wait_event(["CTRL-EVENT-SCAN-STARTED"], timeout=15)
if ev is None:
raise Exception("Timed out while waiting for OBSS scan to start")
ev = dev[0].wait_event(["CTRL-EVENT-SCAN-RESULTS"], timeout=10)
if ev is None:
raise Exception("Timed out while waiting for OBSS scan results")
received = False
for i in range(0, 4):
frame = hapd.mgmt_rx(timeout=5)
if frame is None:
raise Exception("MGMT RX wait timed out")
if frame['subtype'] != 13:
continue
payload = frame['payload']
if len(payload) < 3:
continue
(category, action, ie) = struct.unpack('BBB', payload[0:3])
if category != 4:
continue
if action != 0:
continue
if ie == 72:
logger.info("20/40 BSS Coexistence report received")
received = True
break
if not received:
raise Exception("20/40 BSS Coexistence report not seen")
def test_obss_coex_report_handling(dev, apdev):
"""Overlapping BSS scan report handling with obss_interval=0"""
clear_scan_cache(apdev[0]['ifname'])
params = { "ssid": "obss-scan",
"channel": "6",
"ht_capab": "[HT40-]" }
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
bssid = apdev[0]['bssid']
dev[0].connect("obss-scan", key_mgmt="NONE", scan_freq="2437")
sec = hapd.get_status_field("secondary_channel")
if sec != "-1":
raise Exception("AP is not using 40 MHz channel")
# 20/40 MHz co-ex report tests: number of invalid reports and a valid report
# that forces 20 MHz channel.
tests = [ '0400', '040048', '04004801', '0400480000', '0400490100',
'040048ff0000', '04004801ff49ff00', '04004801004900',
'0400480100490101', '0400480100490201ff',
'040048010449020005' ]
for msg in tests:
req = "MGMT_TX {} {} freq=2437 action={}".format(bssid, bssid, msg)
if "OK" not in dev[0].request(req):
raise Exception("Could not send management frame")
time.sleep(0.5)
sec = hapd.get_status_field("secondary_channel")
if sec != "0":
raise Exception("AP did not move to 20 MHz channel")
def test_obss_coex_report_handling1(dev, apdev):
"""Overlapping BSS scan report handling with obss_interval=1"""
clear_scan_cache(apdev[0]['ifname'])
params = { "ssid": "obss-scan",
"channel": "6",
"ht_capab": "[HT40+]",
"obss_interval": "1" }
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
bssid = apdev[0]['bssid']
dev[0].connect("obss-scan", key_mgmt="NONE", scan_freq="2437")
sec = hapd.get_status_field("secondary_channel")
if sec != "1":
raise Exception("AP is not using 40 MHz channel")
# 20/40 MHz co-ex report forcing 20 MHz channel
msg = '040048010449020005'
req = "MGMT_TX {} {} freq=2437 action={}".format(bssid, bssid, msg)
if "OK" not in dev[0].request(req):
raise Exception("Could not send management frame")
time.sleep(0.5)
sec = hapd.get_status_field("secondary_channel")
if sec != "0":
raise Exception("AP did not move to 20 MHz channel")
# No 20/40 MHz co-ex reports forcing 20 MHz channel during next interval
for i in range(20):
sec = hapd.get_status_field("secondary_channel")
if sec == "1":
break
time.sleep(0.5)
if sec != "1":
raise Exception("AP did not return to 40 MHz channel")
def test_olbc(dev, apdev):
"""OLBC detection"""
params = { "ssid": "test-olbc",
"channel": "6",
"ht_capab": "[HT40-]",
"ap_table_expiration_time": "2" }
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
status = hapd.get_status()
if status['olbc'] != '0' or status['olbc_ht'] != '0':
raise Exception("Unexpected OLBC information")
params = { "ssid": "olbc-ap",
"hw_mode": "b",
"channel": "6",
"wmm_enabled": "0" }
hostapd.add_ap(apdev[1]['ifname'], params)
time.sleep(0.5)
status = hapd.get_status()
if status['olbc'] != '1' or status['olbc_ht'] != '1':
raise Exception("Missing OLBC information")
hapd_global = hostapd.HostapdGlobal()
hapd_global.remove(apdev[1]['ifname'])
logger.info("Waiting for OLBC state to time out")
cleared = False
for i in range(0, 15):
time.sleep(1)
status = hapd.get_status()
if status['olbc'] == '0' and status['olbc_ht'] == '0':
cleared = True
break
if not cleared:
raise Exception("OLBC state did nto time out")
def test_olbc_table_limit(dev, apdev):
"""OLBC AP table size limit"""
ifname1 = apdev[0]['ifname']
ifname2 = apdev[0]['ifname'] + '-2'
ifname3 = apdev[0]['ifname'] + '-3'
hostapd.add_bss('phy3', ifname1, 'bss-1.conf')
hostapd.add_bss('phy3', ifname2, 'bss-2.conf')
hostapd.add_bss('phy3', ifname3, 'bss-3.conf')
params = { "ssid": "test-olbc",
"channel": "1",
"ap_table_max_size": "2" }
hapd = hostapd.add_ap(apdev[1]['ifname'], params)
time.sleep(0.3)
with alloc_fail(hapd, 1, "ap_list_process_beacon"):
time.sleep(0.3)
hapd.set("ap_table_max_size", "1")
time.sleep(0.3)
hapd.set("ap_table_max_size", "0")
time.sleep(0.3)
def test_olbc_5ghz(dev, apdev):
"""OLBC detection on 5 GHz"""
try:
hapd = None
hapd2 = None
params = { "ssid": "test-olbc",
"country_code": "FI",
"hw_mode": "a",
"channel": "36",
"ht_capab": "[HT40+]" }
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
status = hapd.get_status()
if status['olbc'] != '0' or status['olbc_ht'] != '0':
raise Exception("Unexpected OLBC information")
params = { "ssid": "olbc-ap",
"country_code": "FI",
"hw_mode": "a",
"channel": "36",
"ieee80211n": "0",
"wmm_enabled": "0" }
hapd2 = hostapd.add_ap(apdev[1]['ifname'], params)
found = False
for i in range(20):
time.sleep(0.1)
status = hapd.get_status()
logger.debug('olbc_ht: ' + status['olbc_ht'])
if status['olbc_ht'] == '1':
found = True
break
if not found:
raise Exception("Missing OLBC information")
finally:
if hapd:
hapd.request("DISABLE")
if hapd2:
hapd2.request("DISABLE")
subprocess.call(['iw', 'reg', 'set', '00'])
def test_ap_require_ht(dev, apdev):
"""Require HT"""
params = { "ssid": "require-ht",
"require_ht": "1" }
hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
dev[1].connect("require-ht", key_mgmt="NONE", scan_freq="2412",
disable_ht="1", wait_connect=False)
dev[0].connect("require-ht", key_mgmt="NONE", scan_freq="2412")
ev = dev[1].wait_event(["CTRL-EVENT-ASSOC-REJECT"])
if ev is None:
raise Exception("Association rejection timed out")
if "status_code=27" not in ev:
raise Exception("Unexpected rejection status code")
dev[2].connect("require-ht", key_mgmt="NONE", scan_freq="2412",
ht_mcs="0x01 00 00 00 00 00 00 00 00 00",
disable_max_amsdu="1", ampdu_factor="2",
ampdu_density="1", disable_ht40="1", disable_sgi="1",
disable_ldpc="1")
def test_ap_require_ht_limited_rates(dev, apdev):
"""Require HT with limited supported rates"""
params = { "ssid": "require-ht",
"supported_rates": "60 120 240 360 480 540",
"require_ht": "1" }
hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
dev[1].connect("require-ht", key_mgmt="NONE", scan_freq="2412",
disable_ht="1", wait_connect=False)
dev[0].connect("require-ht", key_mgmt="NONE", scan_freq="2412")
ev = dev[1].wait_event(["CTRL-EVENT-ASSOC-REJECT"])
if ev is None:
raise Exception("Association rejection timed out")
if "status_code=27" not in ev:
raise Exception("Unexpected rejection status code")
def test_ap_ht_capab_not_supported(dev, apdev):
"""HT configuration with driver not supporting all ht_capab entries"""
params = { "ssid": "test-ht40",
"channel": "5",
"ht_capab": "[HT40-][LDPC][SMPS-STATIC][SMPS-DYNAMIC][GF][SHORT-GI-20][SHORT-GI-40][TX-STBC][RX-STBC1][RX-STBC12][RX-STBC123][DELAYED-BA][MAX-AMSDU-7935][DSSS_CCK-40][LSIG-TXOP-PROT]"}
hapd = hostapd.add_ap(apdev[0]['ifname'], params, no_enable=True)
if "FAIL" not in hapd.request("ENABLE"):
raise Exception("Unexpected ENABLE success")
def test_ap_ht_40mhz_intolerant_sta(dev, apdev):
"""Associated STA indicating 40 MHz intolerant"""
clear_scan_cache(apdev[0]['ifname'])
params = { "ssid": "intolerant",
"channel": "6",
"ht_capab": "[HT40-]" }
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
if hapd.get_status_field("num_sta_ht40_intolerant") != "0":
raise Exception("Unexpected num_sta_ht40_intolerant value")
if hapd.get_status_field("secondary_channel") != "-1":
raise Exception("Unexpected secondary_channel")
dev[0].connect("intolerant", key_mgmt="NONE", scan_freq="2437")
if hapd.get_status_field("num_sta_ht40_intolerant") != "0":
raise Exception("Unexpected num_sta_ht40_intolerant value")
if hapd.get_status_field("secondary_channel") != "-1":
raise Exception("Unexpected secondary_channel")
dev[2].connect("intolerant", key_mgmt="NONE", scan_freq="2437",
ht40_intolerant="1")
time.sleep(1)
if hapd.get_status_field("num_sta_ht40_intolerant") != "1":
raise Exception("Unexpected num_sta_ht40_intolerant value (expected 1)")
if hapd.get_status_field("secondary_channel") != "0":
raise Exception("Unexpected secondary_channel (did not disable 40 MHz)")
dev[2].request("DISCONNECT")
time.sleep(1)
if hapd.get_status_field("num_sta_ht40_intolerant") != "0":
raise Exception("Unexpected num_sta_ht40_intolerant value (expected 0)")
if hapd.get_status_field("secondary_channel") != "-1":
raise Exception("Unexpected secondary_channel (did not re-enable 40 MHz)")
def test_ap_ht_40mhz_intolerant_ap(dev, apdev):
"""Associated STA reports 40 MHz intolerant AP after association"""
clear_scan_cache(apdev[0]['ifname'])
params = { "ssid": "ht",
"channel": "6",
"ht_capab": "[HT40-]",
"obss_interval": "3" }
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].connect("ht", key_mgmt="NONE", scan_freq="2437")
if hapd.get_status_field("secondary_channel") != "-1":
raise Exception("Unexpected secondary channel information")
logger.info("Start 40 MHz intolerant AP")
params = { "ssid": "intolerant",
"channel": "5",
"ht_capab": "[40-INTOLERANT]" }
hapd2 = hostapd.add_ap(apdev[1]['ifname'], params)
logger.info("Waiting for co-ex report from STA")
ok = False
for i in range(0, 20):
time.sleep(1)
if hapd.get_status_field("secondary_channel") == "0":
logger.info("AP moved to 20 MHz channel")
ok = True
break
if not ok:
raise Exception("AP did not move to 20 MHz channel")
if "OK" not in hapd2.request("DISABLE"):
raise Exception("Failed to disable 40 MHz intolerant AP")
# make sure the intolerant AP disappears from scan results more quickly
dev[0].scan(type="ONLY", freq="2432", only_new=True)
dev[0].scan(type="ONLY", freq="2432", only_new=True)
dev[0].dump_monitor()
logger.info("Waiting for AP to move back to 40 MHz channel")
ok = False
for i in range(0, 30):
time.sleep(1)
if hapd.get_status_field("secondary_channel") == "-1":
logger.info("AP moved to 40 MHz channel")
ok = True
break
if not ok:
raise Exception("AP did not move to 40 MHz channel")
def test_ap_ht40_csa(dev, apdev):
"""HT with 40 MHz channel width and CSA"""
csa_supported(dev[0])
try:
hapd = None
params = { "ssid": "ht",
"country_code": "US",
"hw_mode": "a",
"channel": "36",
"ht_capab": "[HT40+]",
"ieee80211n": "1" }
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].connect("ht", key_mgmt="NONE", scan_freq="5180")
hwsim_utils.test_connectivity(dev[0], hapd)
hapd.request("CHAN_SWITCH 5 5200 ht sec_channel_offset=-1 bandwidth=40")
ev = hapd.wait_event(["AP-CSA-FINISHED"], timeout=10)
if ev is None:
raise Exception("CSA finished event timed out")
if "freq=5200" not in ev:
raise Exception("Unexpected channel in CSA finished event")
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=0.5)
if ev is not None:
raise Exception("Unexpected STA disconnection during CSA")
hwsim_utils.test_connectivity(dev[0], hapd)
hapd.request("CHAN_SWITCH 5 5180 ht sec_channel_offset=1 bandwidth=40")
ev = hapd.wait_event(["AP-CSA-FINISHED"], timeout=10)
if ev is None:
raise Exception("CSA finished event timed out")
if "freq=5180" not in ev:
raise Exception("Unexpected channel in CSA finished event")
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=0.5)
if ev is not None:
raise Exception("Unexpected STA disconnection during CSA")
hwsim_utils.test_connectivity(dev[0], hapd)
finally:
dev[0].request("DISCONNECT")
if hapd:
hapd.request("DISABLE")
subprocess.call(['iw', 'reg', 'set', '00'])
dev[0].flush_scan_cache()
def test_ap_ht40_csa2(dev, apdev):
"""HT with 40 MHz channel width and CSA"""
csa_supported(dev[0])
try:
hapd = None
params = { "ssid": "ht",
"country_code": "US",
"hw_mode": "a",
"channel": "36",
"ht_capab": "[HT40+]",
"ieee80211n": "1" }
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].connect("ht", key_mgmt="NONE", scan_freq="5180")
hwsim_utils.test_connectivity(dev[0], hapd)
hapd.request("CHAN_SWITCH 5 5220 ht sec_channel_offset=1 bandwidth=40")
ev = hapd.wait_event(["AP-CSA-FINISHED"], timeout=10)
if ev is None:
raise Exception("CSA finished event timed out")
if "freq=5220" not in ev:
raise Exception("Unexpected channel in CSA finished event")
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=0.5)
if ev is not None:
raise Exception("Unexpected STA disconnection during CSA")
hwsim_utils.test_connectivity(dev[0], hapd)
hapd.request("CHAN_SWITCH 5 5180 ht sec_channel_offset=1 bandwidth=40")
ev = hapd.wait_event(["AP-CSA-FINISHED"], timeout=10)
if ev is None:
raise Exception("CSA finished event timed out")
if "freq=5180" not in ev:
raise Exception("Unexpected channel in CSA finished event")
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=0.5)
if ev is not None:
raise Exception("Unexpected STA disconnection during CSA")
hwsim_utils.test_connectivity(dev[0], hapd)
finally:
dev[0].request("DISCONNECT")
if hapd:
hapd.request("DISABLE")
subprocess.call(['iw', 'reg', 'set', '00'])
dev[0].flush_scan_cache()
def test_ap_ht40_csa3(dev, apdev):
"""HT with 40 MHz channel width and CSA"""
csa_supported(dev[0])
try:
hapd = None
params = { "ssid": "ht",
"country_code": "US",
"hw_mode": "a",
"channel": "36",
"ht_capab": "[HT40+]",
"ieee80211n": "1" }
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].connect("ht", key_mgmt="NONE", scan_freq="5180")
hwsim_utils.test_connectivity(dev[0], hapd)
hapd.request("CHAN_SWITCH 5 5240 ht sec_channel_offset=-1 bandwidth=40")
ev = hapd.wait_event(["AP-CSA-FINISHED"], timeout=10)
if ev is None:
raise Exception("CSA finished event timed out")
if "freq=5240" not in ev:
raise Exception("Unexpected channel in CSA finished event")
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=0.5)
if ev is not None:
raise Exception("Unexpected STA disconnection during CSA")
hwsim_utils.test_connectivity(dev[0], hapd)
hapd.request("CHAN_SWITCH 5 5180 ht sec_channel_offset=1 bandwidth=40")
ev = hapd.wait_event(["AP-CSA-FINISHED"], timeout=10)
if ev is None:
raise Exception("CSA finished event timed out")
if "freq=5180" not in ev:
raise Exception("Unexpected channel in CSA finished event")
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=0.5)
if ev is not None:
raise Exception("Unexpected STA disconnection during CSA")
hwsim_utils.test_connectivity(dev[0], hapd)
finally:
dev[0].request("DISCONNECT")
if hapd:
hapd.request("DISABLE")
subprocess.call(['iw', 'reg', 'set', '00'])
dev[0].flush_scan_cache()
def test_ap_ht_smps(dev, apdev):
"""SMPS AP configuration options"""
params = { "ssid": "ht1", "ht_capab": "[SMPS-STATIC]" }
try:
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
except:
raise HwsimSkip("Assume mac80211_hwsim was not recent enough to support SMPS")
params = { "ssid": "ht2", "ht_capab": "[SMPS-DYNAMIC]" }
hapd2 = hostapd.add_ap(apdev[1]['ifname'], params)
dev[0].connect("ht1", key_mgmt="NONE", scan_freq="2412")
dev[1].connect("ht2", key_mgmt="NONE", scan_freq="2412")
hwsim_utils.test_connectivity(dev[0], hapd)
hwsim_utils.test_connectivity(dev[1], hapd2)
def test_prefer_ht20(dev, apdev):
"""Preference on HT20 over no-HT"""
params = { "ssid": "test",
"channel": "1",
"ieee80211n": "0" }
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
bssid = apdev[0]['bssid']
params = { "ssid": "test",
"channel": "1",
"ieee80211n": "1" }
hapd2 = hostapd.add_ap(apdev[1]['ifname'], params)
bssid2 = apdev[1]['bssid']
dev[0].scan_for_bss(bssid, freq=2412)
dev[0].scan_for_bss(bssid2, freq=2412)
dev[0].connect("test", key_mgmt="NONE", scan_freq="2412")
if dev[0].get_status_field('bssid') != bssid2:
raise Exception("Unexpected BSS selected")
est = dev[0].get_bss(bssid)['est_throughput']
if est != "54000":
raise Exception("Unexpected BSS0 est_throughput: " + est)
est = dev[0].get_bss(bssid2)['est_throughput']
if est != "65000":
raise Exception("Unexpected BSS1 est_throughput: " + est)
def test_prefer_ht40(dev, apdev):
"""Preference on HT40 over HT20"""
params = { "ssid": "test",
"channel": "1",
"ieee80211n": "1" }
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
bssid = apdev[0]['bssid']
params = { "ssid": "test",
"channel": "1",
"ieee80211n": "1",
"ht_capab": "[HT40+]" }
hapd2 = hostapd.add_ap(apdev[1]['ifname'], params)
bssid2 = apdev[1]['bssid']
dev[0].scan_for_bss(bssid, freq=2412)
dev[0].scan_for_bss(bssid2, freq=2412)
dev[0].connect("test", key_mgmt="NONE", scan_freq="2412")
if dev[0].get_status_field('bssid') != bssid2:
raise Exception("Unexpected BSS selected")
est = dev[0].get_bss(bssid)['est_throughput']
if est != "65000":
raise Exception("Unexpected BSS0 est_throughput: " + est)
est = dev[0].get_bss(bssid2)['est_throughput']
if est != "135000":
raise Exception("Unexpected BSS1 est_throughput: " + est)
def test_prefer_ht20_during_roam(dev, apdev):
"""Preference on HT20 over no-HT in roaming consideration"""
params = { "ssid": "test",
"channel": "1",
"ieee80211n": "0" }
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
bssid = apdev[0]['bssid']
dev[0].scan_for_bss(bssid, freq=2412)
dev[0].connect("test", key_mgmt="NONE", scan_freq="2412")
params = { "ssid": "test",
"channel": "1",
"ieee80211n": "1" }
hapd2 = hostapd.add_ap(apdev[1]['ifname'], params)
bssid2 = apdev[1]['bssid']
dev[0].scan_for_bss(bssid2, freq=2412)
dev[0].scan(freq=2412)
dev[0].wait_connected()
if dev[0].get_status_field('bssid') != bssid2:
raise Exception("Unexpected BSS selected")
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