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hostapd/tests/hwsim/test_dfs.py
Jouni Malinen e41a51285d tests: Make dfs_etsi more robust 
Explicitly wait for the STA to complete connection or channel switch
processing before running the second connectivity check.

Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
2024-01-26 12:00:24 +02:00

922 lines
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# Test cases for DFS
# Copyright (c) 2013-2019, Jouni Malinen <j@w1.fi>
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.
from remotehost import remote_compatible
import os
import subprocess
import time
import logging
logger = logging.getLogger()
import hwsim_utils
import hostapd
from utils import *
def wait_dfs_event(hapd, event, timeout):
dfs_events = ["DFS-RADAR-DETECTED", "DFS-NEW-CHANNEL",
"DFS-CAC-START", "DFS-CAC-COMPLETED",
"DFS-NOP-FINISHED", "AP-ENABLED", "AP-CSA-FINISHED"]
ev = hapd.wait_event(dfs_events, timeout=timeout)
if not ev:
raise Exception("DFS event timed out")
if event and event not in ev:
raise Exception("Unexpected DFS event: " + ev + " (expected: %s)" % event)
return ev
def start_dfs_ap(ap, ssid="dfs", ht=True, ht40=False,
ht40minus=False, vht80=False, vht20=False, chanlist=None,
channel=None, country="FI", rrm_beacon_report=False,
chan100=False):
ifname = ap['ifname']
logger.info("Starting AP " + ifname + " on DFS channel")
hapd = hostapd.add_ap(ap, {}, no_enable=True)
hapd.set("ssid", ssid)
hapd.set("country_code", country)
hapd.set("ieee80211d", "1")
hapd.set("ieee80211h", "1")
hapd.set("hw_mode", "a")
if chan100:
hapd.set("channel", "100")
else:
hapd.set("channel", "52")
if not ht:
hapd.set("ieee80211n", "0")
if ht40:
hapd.set("ht_capab", "[HT40+]")
elif ht40minus:
hapd.set("ht_capab", "[HT40-]")
hapd.set("channel", "56")
if vht80:
hapd.set("ieee80211ac", "1")
hapd.set("vht_oper_chwidth", "1")
if chan100:
hapd.set("vht_oper_centr_freq_seg0_idx", "106")
else:
hapd.set("vht_oper_centr_freq_seg0_idx", "58")
if vht20:
hapd.set("ieee80211ac", "1")
hapd.set("vht_oper_chwidth", "0")
hapd.set("vht_oper_centr_freq_seg0_idx", "0")
if chanlist:
hapd.set("chanlist", chanlist)
if channel:
hapd.set("channel", str(channel))
if rrm_beacon_report:
hapd.set("rrm_beacon_report", "1")
hapd.enable()
ev = wait_dfs_event(hapd, "DFS-CAC-START", 5)
if "DFS-CAC-START" not in ev:
raise Exception("Unexpected DFS event: " + ev)
state = hapd.get_status_field("state")
if state != "DFS":
raise Exception("Unexpected interface state: " + state)
return hapd
def dfs_simulate_radar(hapd):
logger.info("Trigger a simulated radar event")
phyname = hapd.get_driver_status_field("phyname")
radar_file = '/sys/kernel/debug/ieee80211/' + phyname + '/hwsim/dfs_simulate_radar'
with open(radar_file, 'w') as f:
f.write('1')
def test_dfs(dev, apdev):
"""DFS CAC functionality on clear channel"""
try:
hapd = None
hapd = start_dfs_ap(apdev[0], country="US")
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 70)
if "success=1" not in ev:
raise Exception("CAC failed")
if "freq=5260" not in ev:
raise Exception("Unexpected DFS freq result")
ev = hapd.wait_event(["AP-ENABLED"], timeout=5)
if not ev:
raise Exception("AP setup timed out")
state = hapd.get_status_field("state")
if state != "ENABLED":
raise Exception("Unexpected interface state")
freq = hapd.get_status_field("freq")
if freq != "5260":
raise Exception("Unexpected frequency")
dev[0].connect("dfs", key_mgmt="NONE", timeout=30)
dev[0].wait_regdom(country_ie=True)
hwsim_utils.test_connectivity(dev[0], hapd)
hapd.request("RADAR DETECTED freq=5260 ht_enabled=1 chan_width=1")
ev = hapd.wait_event(["DFS-RADAR-DETECTED"], timeout=10)
if ev is None:
raise Exception("DFS-RADAR-DETECTED event not reported")
if "freq=5260" not in ev:
raise Exception("Incorrect frequency in radar detected event: " + ev)
ev = hapd.wait_event(["DFS-NEW-CHANNEL"], timeout=70)
if ev is None:
raise Exception("DFS-NEW-CHANNEL event not reported")
if "freq=5260" in ev:
raise Exception("Channel did not change after radar was detected")
ev = hapd.wait_event(["AP-CSA-FINISHED"], timeout=70)
if ev is None:
raise Exception("AP-CSA-FINISHED event not reported")
if "freq=5260" in ev:
raise Exception("Channel did not change after radar was detected(2)")
time.sleep(1)
hwsim_utils.test_connectivity(dev[0], hapd)
finally:
clear_regdom(hapd, dev)
@long_duration_test
def test_dfs_etsi(dev, apdev):
"""DFS and uniform spreading requirement for ETSI"""
try:
hapd = None
hapd = start_dfs_ap(apdev[0])
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 70)
if "success=1" not in ev:
raise Exception("CAC failed")
if "freq=5260" not in ev:
raise Exception("Unexpected DFS freq result")
ev = hapd.wait_event(["AP-ENABLED"], timeout=5)
if not ev:
raise Exception("AP setup timed out")
state = hapd.get_status_field("state")
if state != "ENABLED":
raise Exception("Unexpected interface state")
freq = hapd.get_status_field("freq")
if freq != "5260":
raise Exception("Unexpected frequency")
hapd.dump_monitor()
dev[0].dump_monitor()
dev[0].connect("dfs", key_mgmt="NONE")
dev[0].wait_regdom(country_ie=True)
time.sleep(1)
hwsim_utils.test_connectivity(dev[0], hapd)
hapd.dump_monitor()
dev[0].dump_monitor()
hapd.request("RADAR DETECTED freq=%s ht_enabled=1 chan_width=1" % freq)
ev = hapd.wait_event(["DFS-RADAR-DETECTED"], timeout=5)
if ev is None:
raise Exception("DFS-RADAR-DETECTED event not reported")
if "freq=%s" % freq not in ev:
raise Exception("Incorrect frequency in radar detected event: " + ev)
ev = hapd.wait_event(["DFS-NEW-CHANNEL"], timeout=5)
if ev is None:
raise Exception("DFS-NEW-CHANNEL event not reported")
if "freq=%s" % freq in ev:
raise Exception("Channel did not change after radar was detected")
ev = hapd.wait_event(["AP-CSA-FINISHED", "DFS-CAC-START"], timeout=10)
if ev is None:
raise Exception("AP-CSA-FINISHED or DFS-CAC-START event not reported")
if "DFS-CAC-START" in ev:
# The selected new channel requires CAC
dev[0].wait_disconnected()
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 70)
if "success=1" not in ev:
raise Exception("CAC failed")
ev = hapd.wait_event(["AP-ENABLED"], timeout=5)
if not ev:
raise Exception("AP setup timed out")
ev = hapd.wait_event(["AP-STA-CONNECTED"], timeout=30)
if not ev:
raise Exception("STA did not reconnect on new DFS channel")
dev[0].wait_connected()
else:
# The new channel did not require CAC - try again
if "freq=%s" % freq in ev:
raise Exception("Channel did not change after radar was detected(2)")
ev = dev[0].wait_event(["CTRL-EVENT-CHANNEL-SWITCH"], timeout=10)
if ev is None:
raise Exception("Channel switch not reported on STA")
time.sleep(1)
hapd.dump_monitor()
dev[0].dump_monitor()
time.sleep(1)
hwsim_utils.test_connectivity(dev[0], hapd)
finally:
clear_regdom(hapd, dev)
def test_dfs_radar1(dev, apdev):
"""DFS CAC functionality with radar detected during initial CAC"""
try:
hapd = None
hapd = start_dfs_ap(apdev[0])
time.sleep(1)
dfs_simulate_radar(hapd)
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 5)
if ev is None:
raise Exception("Timeout on DFS aborted event")
if "success=0 freq=5260" not in ev:
raise Exception("Unexpected DFS aborted event contents: " + ev)
ev = wait_dfs_event(hapd, "DFS-RADAR-DETECTED", 5)
if "freq=5260" not in ev:
raise Exception("Unexpected DFS radar detection freq")
ev = wait_dfs_event(hapd, "DFS-NEW-CHANNEL", 5)
if "freq=5260" in ev:
raise Exception("Unexpected DFS new freq")
ev = wait_dfs_event(hapd, None, 5)
if "AP-ENABLED" in ev:
logger.info("Started AP on non-DFS channel")
else:
logger.info("Trying to start AP on another DFS channel")
if "DFS-CAC-START" not in ev:
raise Exception("Unexpected DFS event: " + ev)
if "freq=5260" in ev:
raise Exception("Unexpected DFS CAC freq")
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 70)
if "success=1" not in ev:
raise Exception("CAC failed")
if "freq=5260" in ev:
raise Exception("Unexpected DFS freq result - radar channel")
ev = hapd.wait_event(["AP-ENABLED"], timeout=5)
if not ev:
raise Exception("AP setup timed out")
state = hapd.get_status_field("state")
if state != "ENABLED":
raise Exception("Unexpected interface state")
freq = hapd.get_status_field("freq")
if freq == "5260":
raise Exception("Unexpected frequency: " + freq)
dev[0].connect("dfs", key_mgmt="NONE")
dev[0].wait_regdom(country_ie=True)
finally:
clear_regdom(hapd, dev)
def test_dfs_radar2(dev, apdev):
"""DFS CAC functionality with radar detected after initial CAC"""
try:
hapd = None
hapd = start_dfs_ap(apdev[0], ssid="dfs2", ht40=True)
ev = hapd.wait_event(["AP-ENABLED"], timeout=70)
if not ev:
raise Exception("AP2 setup timed out")
dfs_simulate_radar(hapd)
ev = wait_dfs_event(hapd, "DFS-RADAR-DETECTED", 5)
if "freq=5260 ht_enabled=1 chan_offset=1 chan_width=2" not in ev:
raise Exception("Unexpected DFS radar detection freq from AP2")
ev = wait_dfs_event(hapd, "DFS-NEW-CHANNEL", 5)
if "freq=5260" in ev:
raise Exception("Unexpected DFS new freq for AP2")
wait_dfs_event(hapd, None, 5)
finally:
clear_regdom(hapd, dev)
@remote_compatible
def test_dfs_radar_on_non_dfs_channel(dev, apdev):
"""DFS radar detection test code on non-DFS channel"""
params = {"ssid": "radar"}
hapd = hostapd.add_ap(apdev[0], params)
hapd.request("RADAR DETECTED freq=5260 ht_enabled=1 chan_width=1")
hapd.request("RADAR DETECTED freq=2412 ht_enabled=1 chan_width=1")
def test_dfs_radar_chanlist(dev, apdev):
"""DFS chanlist when radar is detected"""
try:
hapd = None
hapd = start_dfs_ap(apdev[0], chanlist="40 44")
time.sleep(1)
dfs_simulate_radar(hapd)
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 5)
if ev is None:
raise Exception("Timeout on DFS aborted event")
if "success=0 freq=5260" not in ev:
raise Exception("Unexpected DFS aborted event contents: " + ev)
ev = wait_dfs_event(hapd, "DFS-RADAR-DETECTED", 5)
if "freq=5260" not in ev:
raise Exception("Unexpected DFS radar detection freq")
ev = wait_dfs_event(hapd, "DFS-NEW-CHANNEL", 5)
if "freq=5200 chan=40" not in ev and "freq=5220 chan=44" not in ev:
raise Exception("Unexpected DFS new freq: " + ev)
ev = wait_dfs_event(hapd, None, 5)
if "AP-ENABLED" not in ev:
raise Exception("Unexpected DFS event: " + ev)
dev[0].connect("dfs", key_mgmt="NONE")
dev[0].wait_regdom(country_ie=True)
finally:
clear_regdom(hapd, dev)
def test_dfs_radar_chanlist_vht80(dev, apdev):
"""DFS chanlist when radar is detected and VHT80 configured"""
try:
hapd = None
hapd = start_dfs_ap(apdev[0], chanlist="36", ht40=True, vht80=True)
time.sleep(1)
dfs_simulate_radar(hapd)
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 5)
if ev is None:
raise Exception("Timeout on DFS aborted event")
if "success=0 freq=5260" not in ev:
raise Exception("Unexpected DFS aborted event contents: " + ev)
ev = wait_dfs_event(hapd, "DFS-RADAR-DETECTED", 5)
if "freq=5260" not in ev:
raise Exception("Unexpected DFS radar detection freq")
ev = wait_dfs_event(hapd, "DFS-NEW-CHANNEL", 5)
if "freq=5180 chan=36 sec_chan=1" not in ev:
raise Exception("Unexpected DFS new freq: " + ev)
ev = wait_dfs_event(hapd, None, 5)
if "AP-ENABLED" not in ev:
raise Exception("Unexpected DFS event: " + ev)
dev[0].connect("dfs", key_mgmt="NONE")
dev[0].wait_regdom(country_ie=True)
if hapd.get_status_field('vht_oper_centr_freq_seg0_idx') != "42":
raise Exception("Unexpected seg0 idx")
finally:
clear_regdom(hapd, dev)
def test_dfs_radar_chanlist_vht20(dev, apdev):
"""DFS chanlist when radar is detected and VHT40 configured"""
try:
hapd = None
hapd = start_dfs_ap(apdev[0], chanlist="36", vht20=True)
time.sleep(1)
dfs_simulate_radar(hapd)
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 5)
if ev is None:
raise Exception("Timeout on DFS aborted event")
if "success=0 freq=5260" not in ev:
raise Exception("Unexpected DFS aborted event contents: " + ev)
ev = wait_dfs_event(hapd, "DFS-RADAR-DETECTED", 5)
if "freq=5260" not in ev:
raise Exception("Unexpected DFS radar detection freq")
ev = wait_dfs_event(hapd, "DFS-NEW-CHANNEL", 5)
if "freq=5180 chan=36 sec_chan=0" not in ev:
raise Exception("Unexpected DFS new freq: " + ev)
ev = wait_dfs_event(hapd, None, 5)
if "AP-ENABLED" not in ev:
raise Exception("Unexpected DFS event: " + ev)
dev[0].connect("dfs", key_mgmt="NONE")
dev[0].wait_regdom(country_ie=True)
finally:
clear_regdom(hapd, dev)
def test_dfs_radar_no_ht(dev, apdev):
"""DFS chanlist when radar is detected and no HT configured"""
try:
hapd = None
hapd = start_dfs_ap(apdev[0], chanlist="36", ht=False)
time.sleep(1)
dfs_simulate_radar(hapd)
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 5)
if ev is None:
raise Exception("Timeout on DFS aborted event")
if "success=0 freq=5260" not in ev:
raise Exception("Unexpected DFS aborted event contents: " + ev)
ev = wait_dfs_event(hapd, "DFS-RADAR-DETECTED", 5)
if "freq=5260 ht_enabled=0" not in ev:
raise Exception("Unexpected DFS radar detection freq: " + ev)
ev = wait_dfs_event(hapd, "DFS-NEW-CHANNEL", 5)
if "freq=5180 chan=36 sec_chan=0" not in ev:
raise Exception("Unexpected DFS new freq: " + ev)
ev = wait_dfs_event(hapd, None, 5)
if "AP-ENABLED" not in ev:
raise Exception("Unexpected DFS event: " + ev)
dev[0].connect("dfs", key_mgmt="NONE")
dev[0].wait_regdom(country_ie=True)
finally:
clear_regdom(hapd, dev)
def test_dfs_radar_ht40minus(dev, apdev):
"""DFS chanlist when radar is detected and HT40- configured"""
try:
hapd = None
hapd = start_dfs_ap(apdev[0], chanlist="36", ht40minus=True)
time.sleep(1)
dfs_simulate_radar(hapd)
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 5)
if ev is None:
raise Exception("Timeout on DFS aborted event")
if "success=0 freq=5280 ht_enabled=1 chan_offset=-1" not in ev:
raise Exception("Unexpected DFS aborted event contents: " + ev)
ev = wait_dfs_event(hapd, "DFS-RADAR-DETECTED", 5)
if "freq=5280 ht_enabled=1 chan_offset=-1" not in ev:
raise Exception("Unexpected DFS radar detection freq: " + ev)
ev = wait_dfs_event(hapd, "DFS-NEW-CHANNEL", 5)
if "freq=5180 chan=36 sec_chan=1" not in ev:
raise Exception("Unexpected DFS new freq: " + ev)
ev = wait_dfs_event(hapd, None, 5)
if "AP-ENABLED" not in ev:
raise Exception("Unexpected DFS event: " + ev)
dev[0].connect("dfs", key_mgmt="NONE")
dev[0].wait_regdom(country_ie=True)
dev[0].request("STA_AUTOCONNECT 0")
finally:
clear_regdom(hapd, dev)
dev[0].request("STA_AUTOCONNECT 1")
@long_duration_test
def test_dfs_ht40_minus(dev, apdev):
"""DFS CAC functionality on channel 104 HT40-"""
try:
hapd = None
hapd = start_dfs_ap(apdev[0], ht40minus=True, channel=104)
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 70)
if "success=1" not in ev:
raise Exception("CAC failed")
if "freq=5520" not in ev:
raise Exception("Unexpected DFS freq result")
ev = hapd.wait_event(["AP-ENABLED"], timeout=5)
if not ev:
raise Exception("AP setup timed out")
state = hapd.get_status_field("state")
if state != "ENABLED":
raise Exception("Unexpected interface state")
freq = hapd.get_status_field("freq")
if freq != "5520":
raise Exception("Unexpected frequency")
dev[0].connect("dfs", key_mgmt="NONE", scan_freq="5520")
dev[0].wait_regdom(country_ie=True)
hwsim_utils.test_connectivity(dev[0], hapd)
finally:
clear_regdom(hapd, dev)
def test_dfs_cac_restart_on_enable(dev, apdev):
"""DFS CAC interrupted and restarted"""
try:
hapd = None
hapd = start_dfs_ap(apdev[0])
time.sleep(0.1)
subprocess.check_call(['ip', 'link', 'set', 'dev', hapd.ifname, 'down'])
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 5)
if ev is None:
raise Exception("Timeout on DFS aborted event")
if "success=0 freq=5260" not in ev:
raise Exception("Unexpected DFS aborted event contents: " + ev)
time.sleep(0.1)
subprocess.check_call(['ip', 'link', 'set', 'dev', hapd.ifname, 'up'])
ev = wait_dfs_event(hapd, "DFS-CAC-START", 5)
if "DFS-CAC-START" not in ev:
raise Exception("Unexpected DFS event: " + ev)
hapd.disable()
finally:
clear_regdom(hapd, dev)
@long_duration_test
def test_dfs_rrm(dev, apdev):
"""DFS with RRM"""
try:
hapd = None
hapd = start_dfs_ap(apdev[0], country="US", rrm_beacon_report=True)
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 70)
if "success=1" not in ev or "freq=5260" not in ev:
raise Exception("Unexpected DFS freq result")
ev = hapd.wait_event(["AP-ENABLED"], timeout=5)
if not ev:
raise Exception("AP setup timed out")
dev[0].connect("dfs", key_mgmt="NONE", scan_freq="5260")
dev[0].wait_regdom(country_ie=True)
hapd.wait_sta()
hwsim_utils.test_connectivity(dev[0], hapd)
addr = dev[0].own_addr()
token = hapd.request("REQ_BEACON " + addr + " " + "51000000000002ffffffffffff")
if "FAIL" in token:
raise Exception("REQ_BEACON failed")
ev = hapd.wait_event(["BEACON-RESP-RX"], timeout=10)
if ev is None:
raise Exception("Beacon report response not received")
finally:
clear_regdom(hapd, dev)
@long_duration_test
def test_dfs_radar_vht80_downgrade(dev, apdev):
"""DFS channel bandwidth downgrade from VHT80 to VHT40"""
try:
# Start with 80 MHz channel 100 (5500 MHz) to find a radar
hapd = None
hapd = start_dfs_ap(apdev[0], chanlist="100-140",
ht40=True, vht80=True, chan100=True)
time.sleep(1)
dfs_simulate_radar(hapd)
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 5)
if ev is None:
raise Exception("Timeout on DFS aborted event")
if "success=0 freq=5500" not in ev:
raise Exception("Unexpected DFS aborted event contents: " + ev)
ev = wait_dfs_event(hapd, "DFS-RADAR-DETECTED", 5)
if "freq=5500" not in ev:
raise Exception("Unexpected DFS radar detection freq: " + ev)
# The only other available 80 MHz channel in the chanlist is
# 116 (5580 MHz), so that will be selected next.
ev = wait_dfs_event(hapd, "DFS-NEW-CHANNEL", 5)
if "freq=5580 chan=116 sec_chan=1" not in ev:
raise Exception("Unexpected DFS new freq: " + ev)
ev = wait_dfs_event(hapd, None, 5)
if "DFS-CAC-START" not in ev:
raise Exception("Unexpected DFS event: " + ev)
if "freq=5580" not in ev:
raise Exception("Unexpected DFS CAC freq: " + ev)
time.sleep(1)
dfs_simulate_radar(hapd)
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 5)
if ev is None:
raise Exception("Timeout on DFS aborted event (2)")
if "success=0 freq=5580" not in ev:
raise Exception("Unexpected DFS aborted event (2) contents: " + ev)
ev = wait_dfs_event(hapd, "DFS-RADAR-DETECTED", 5)
if "freq=5580" not in ev:
raise Exception("Unexpected DFS radar detection (2) freq: " + ev)
# No more 80 MHz channels are available, so have to downgrade to 40 MHz
# channels and the only remaining one is channel 132 (5660 MHz).
ev = wait_dfs_event(hapd, "DFS-NEW-CHANNEL", 5)
if "freq=5660 chan=132 sec_chan=1" not in ev:
raise Exception("Unexpected DFS new freq (2): " + ev)
ev = wait_dfs_event(hapd, None, 5)
if "DFS-CAC-START" not in ev:
raise Exception("Unexpected DFS event: " + ev)
if "freq=5660" not in ev:
raise Exception("Unexpected DFS CAC freq (2): " + ev)
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 70)
if "success=1" not in ev:
raise Exception("CAC failed")
if "freq=5660" not in ev:
raise Exception("Unexpected DFS freq result: " + ev)
ev = wait_dfs_event(hapd, None, 5)
if "AP-ENABLED" not in ev:
raise Exception("Unexpected DFS event: " + ev)
dev[0].connect("dfs", key_mgmt="NONE", scan_freq="5660")
dev[0].wait_regdom(country_ie=True)
sig = dev[0].request("SIGNAL_POLL").splitlines()
if "FREQUENCY=5660" not in sig or "WIDTH=40 MHz" not in sig:
raise Exception("Unexpected SIGNAL_POLL value: " + str(sig))
finally:
clear_regdom(hapd, dev)
@long_duration_test
def test_dfs_chan_switch(dev, apdev):
"""DFS channel switch"""
try:
hapd = None
hapd = start_dfs_ap(apdev[0], country="US")
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 70)
if "success=1" not in ev:
raise Exception("CAC failed")
if "freq=5260" not in ev:
raise Exception("Unexpected DFS freq result")
ev = hapd.wait_event(["AP-ENABLED"], timeout=5)
if not ev:
raise Exception("AP setup timed out")
freq = hapd.get_status_field("freq")
if freq != "5260":
raise Exception("Unexpected frequency")
dev[0].connect("dfs", key_mgmt="NONE", scan_freq="5260 5280")
dev[0].wait_regdom(country_ie=True)
hwsim_utils.test_connectivity(dev[0], hapd)
if "OK" not in hapd.request("CHAN_SWITCH 5 5280 ht"):
raise Exception("CHAN_SWITCH failed")
# This results in BSS going down before restart, so the STA is expected
# to report disconnection.
dev[0].wait_disconnected()
ev = wait_dfs_event(hapd, "DFS-CAC-START", 5)
if "freq=5280" not in ev:
raise Exception("Unexpected channel: " + ev)
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 70)
if "success=1" not in ev:
raise Exception("CAC failed")
if "freq=5280" not in ev:
raise Exception("Unexpected DFS freq result")
ev = hapd.wait_event(["AP-ENABLED"], timeout=5)
if not ev:
raise Exception("AP setup timed out")
freq = hapd.get_status_field("freq")
if freq != "5280":
raise Exception("Unexpected frequency")
dev[0].wait_connected(timeout=30)
hwsim_utils.test_connectivity(dev[0], hapd)
finally:
clear_regdom(hapd, dev)
@long_duration_test
def test_dfs_chan_switch_to_vht80(dev, apdev):
"""DFS channel switch to VHT80"""
run_dfs_chan_switch_to_vht(dev, apdev, vht80=True)
@long_duration_test
def test_dfs_chan_switch_to_vht80p80(dev, apdev):
"""DFS channel switch to VHT80+80"""
run_dfs_chan_switch_to_vht(dev, apdev, vht80p80=True)
@long_duration_test
def test_dfs_chan_switch_to_vht160(dev, apdev):
"""DFS channel switch to VHT160"""
run_dfs_chan_switch_to_vht(dev, apdev, vht160=True)
@long_duration_test
def test_dfs_chan_switch_to_vht160b(dev, apdev):
"""DFS channel switch to VHT160 from non-DFS"""
run_dfs_chan_switch_to_vht(dev, apdev, vht160=True, start_dfs=False)
def run_dfs_chan_switch_to_vht(dev, apdev, vht80=False, vht80p80=False,
vht160=False, start_dfs=True):
try:
hapd = None
if start_dfs:
hapd = start_dfs_ap(apdev[0], country="US")
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 70)
if "success=1" not in ev:
raise Exception("CAC failed")
if "freq=5260" not in ev:
raise Exception("Unexpected DFS freq result")
ev = hapd.wait_event(["AP-ENABLED"], timeout=5)
if not ev:
raise Exception("AP setup timed out")
freq = hapd.get_status_field("freq")
if freq != "5260":
raise Exception("Unexpected frequency")
dev[0].connect("dfs", key_mgmt="NONE", scan_freq="5260 5180")
else:
params = {"ssid": "dfs",
"country_code": "US",
"ieee80211d": "1",
"hw_mode": "a",
"channel": "40"}
hapd = hostapd.add_ap(apdev[0], params)
dev[0].connect("dfs", key_mgmt="NONE", scan_freq="5260 5180 5200")
dev[0].wait_regdom(country_ie=True)
hwsim_utils.test_connectivity(dev[0], hapd)
if vht160:
if not start_dfs:
hapd.set("ieee80211h", "1")
cmd = "CHAN_SWITCH 5 5180 sec_channel_offset=1 center_freq1=5250 bandwidth=160 ht vht"
if vht80p80:
cmd = "CHAN_SWITCH 5 5180 sec_channel_offset=1 center_freq1=5210 center_freq2=5775 bandwidth=80 ht vht"
if vht80:
cmd = "CHAN_SWITCH 5 5180 sec_channel_offset=1 center_freq1=5210 bandwidth=80 ht vht"
if "OK" not in hapd.request(cmd):
raise Exception("CHAN_SWITCH command failed")
if vht160:
# This results in BSS going down before restart, so the STA is
# expected to report disconnection.
dev[0].wait_disconnected()
ev = wait_dfs_event(hapd, "DFS-CAC-START", 5)
if "freq=5180" not in ev:
raise Exception("Unexpected channel: " + ev)
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 70)
if "success=1" not in ev:
raise Exception("CAC failed")
else:
ev = wait_dfs_event(hapd, "AP-CSA-FINISHED", 5)
if "freq=5180" not in ev:
raise Exception("Unexpected channel: " + ev)
if vht160:
ev = hapd.wait_event(["AP-ENABLED"], timeout=5)
if not ev:
raise Exception("AP setup timed out")
freq = hapd.get_status_field("freq")
if freq != "5180":
raise Exception("Unexpected frequency")
status = hapd.get_status()
logger.info("hostapd STATUS: " + str(status))
if status["ieee80211n"] != "1":
raise Exception("Unexpected STATUS ieee80211n value")
if status["ieee80211ac"] != "1":
raise Exception("Unexpected STATUS ieee80211ac value")
if status["secondary_channel"] != "1":
raise Exception("Unexpected STATUS secondary_channel value")
if vht80 and status["vht_oper_chwidth"] != "1":
raise Exception("Unexpected STATUS vht_oper_chwidth value")
if vht80p80 and status["vht_oper_chwidth"] != "3":
raise Exception("Unexpected STATUS vht_oper_chwidth value")
if vht160 and status["vht_oper_chwidth"] != "2":
raise Exception("Unexpected STATUS vht_oper_chwidth value")
if vht160:
if status["vht_oper_centr_freq_seg0_idx"] != "50":
raise Exception("Unexpected STATUS vht_oper_centr_freq_seg0_idx value")
else:
if status["vht_oper_centr_freq_seg0_idx"] != "42":
raise Exception("Unexpected STATUS vht_oper_centr_freq_seg0_idx value")
if vht80p80 and status["vht_oper_centr_freq_seg1_idx"] != "155":
raise Exception("Unexpected STATUS vht_oper_centr_freq_seg1_idx value")
if "vht_caps_info" not in status:
raise Exception("Missing vht_caps_info")
if vht160:
dev[0].wait_connected(timeout=30)
else:
ev = dev[0].wait_event(["CTRL-EVENT-CHANNEL-SWITCH"], timeout=10)
if ev is None:
raise Exception("Channel switch not reported")
if "freq=5180" not in ev:
raise Exception("Unexpected frequency: " + ev)
sig = dev[0].request("SIGNAL_POLL").splitlines()
logger.info("STA0: " + str(sig))
if "FREQUENCY=5180" not in sig:
raise Exception("Unexpected channel: " + str(sig))
if vht160 and "WIDTH=160 MHz" not in sig:
raise Exception("Unexpected channel[1]: " + str(sig))
hwsim_utils.test_connectivity(dev[0], hapd)
dev[1].connect("dfs", key_mgmt="NONE", scan_freq="5180")
sig = dev[1].request("SIGNAL_POLL").splitlines()
logger.info("STA1: " + str(sig))
if "FREQUENCY=5180" not in sig:
raise Exception("Unexpected channel[1]: " + str(sig))
if vht80 and "WIDTH=80 MHz" not in sig:
raise Exception("Unexpected channel[1]: " + str(sig))
if vht80p80 and "WIDTH=80+80 MHz" not in sig:
raise Exception("Unexpected channel[1]: " + str(sig))
if vht160 and "WIDTH=160 MHz" not in sig:
raise Exception("Unexpected channel[1]: " + str(sig))
finally:
clear_regdom(hapd, dev)
@long_duration_test
def test_dfs_no_available_channel(dev, apdev):
"""DFS and no available channel after radar detection"""
try:
hapd = None
hapd = start_dfs_ap(apdev[0], chanlist="56")
ev = hapd.wait_event(["AP-ENABLED"], timeout=70)
if not ev:
raise Exception("AP2 setup timed out")
dfs_simulate_radar(hapd)
ev = wait_dfs_event(hapd, "DFS-RADAR-DETECTED", 5)
if "freq=5260 ht_enabled=1 chan_offset=0 chan_width=1" not in ev:
raise Exception("Unexpected DFS radar detection freq from AP")
ev = wait_dfs_event(hapd, "DFS-NEW-CHANNEL", 5)
if "freq=5280 chan=56" not in ev:
raise Exception("Unexpected DFS new freq: " + ev)
ev = wait_dfs_event(hapd, "DFS-CAC-START", 5)
if "freq=5280" not in ev:
raise Exception("Unexpected channel: " + ev)
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 70)
if "success=1" not in ev:
raise Exception("CAC failed")
if "freq=5280" not in ev:
raise Exception("Unexpected DFS freq result")
ev = hapd.wait_event(["AP-ENABLED"], timeout=5)
if not ev:
raise Exception("AP setup timed out")
dfs_simulate_radar(hapd)
ev = wait_dfs_event(hapd, "DFS-RADAR-DETECTED", 5)
if "freq=5280 ht_enabled=1 chan_offset=0 chan_width=1" not in ev:
raise Exception("Unexpected DFS radar detection freq from AP [2]")
ev = hapd.wait_event(["AP-DISABLED"], timeout=10)
if ev is None:
raise Exception("AP was not disabled")
finally:
clear_regdom(hapd, dev)
def dfs_chan_switch_precac(dev, apdev, country):
"""DFS channel switch pre CAC"""
try:
hapd = None
# Toggle regulatory - clean all preCAC
hostapd.cmd_execute(apdev[0], ['iw', 'reg', 'set', 'US'])
hapd = start_dfs_ap(apdev[0], country=country)
ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 70)
if "success=1" not in ev:
raise Exception("CAC failed")
if "freq=5260" not in ev:
raise Exception("Unexpected DFS freq result")
ev = hapd.wait_event(["AP-ENABLED"], timeout=5)
if not ev:
raise Exception("AP setup timed out")
freq = hapd.get_status_field("freq")
if freq != "5260":
raise Exception("Unexpected frequency")
# TODO add/connect station here
# Today skip this step while dev[0].connect()
# for some reason toggle regulatory to US
# and clean preCAC
# Back to non DFS channel
if "OK" not in hapd.request("CHAN_SWITCH 5 5180 ht"):
raise Exception("CHAN_SWITCH 5180 failed")
ev = hapd.wait_event(["AP-CSA-FINISHED"], timeout=5)
if not ev:
raise Exception("No CSA finished event - 5180")
freq = hapd.get_status_field("freq")
if freq != "5180":
raise Exception("Unexpected frequency")
# Today cfg80211 first send AP-CSA-FINISHED and next
# DFS-PRE-CAC-EXPIRED
ev = hapd.wait_event(["DFS-PRE-CAC-EXPIRED"], timeout=3)
if not ev and country == 'US':
raise Exception("US - no CAC-EXPIRED event")
# Back again to DFS channel (CAC passed)
if "OK" not in hapd.request("CHAN_SWITCH 5 5260 ht"):
raise Exception("CHAN_SWITCH 5260 failed")
if country == 'US':
# For non EU we should start CAC again
ev = wait_dfs_event(hapd, "DFS-CAC-START", 5)
if not ev:
raise Exception("No DFS CAC start event")
else:
# For EU preCAC should be used
ev = wait_dfs_event(hapd, "AP-CSA-FINISHED", 5)
if not ev:
raise Exception("No CSA finished event - 5260")
finally:
clear_regdom(hapd, dev)
@long_duration_test
def test_dfs_eu_chan_switch_precac(dev, apdev):
"""DFS channel switch pre CAC - ETSI domain"""
dfs_chan_switch_precac(dev, apdev, 'PL')
@long_duration_test
def test_dfs_us_chan_switch_precac(dev, apdev):
"""DFS channel switch pre CAC - FCC domain"""
dfs_chan_switch_precac(dev, apdev, 'US')
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