hostapd/tests/hwsim/test_dfs.py
Johannes Berg e4f1a48bd2 tests: Give some operations more time
With more channels now available in some regulatory domains, some scan
operations can take longer. Give them more time to complete in tests.

For two cases this required adding a timeout parameter to connect(),
which is then passed through.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-11-24 22:36:58 +02:00

767 lines
28 KiB
Python

# 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")
dev[0].connect("dfs", key_mgmt="NONE")
dev[0].wait_regdom(country_ie=True)
hwsim_utils.test_connectivity(dev[0], hapd)
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
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")
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)")
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_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')