def set_client_wifi(opt):
"""Set up a wifi client in response to the 'setclient' command.
Args:
opt: The OptDict parsed from command line options.
Returns:
Whether wpa_supplicant successfully started and associated.
Raises:
BinWifiException: On various errors.
"""
if not opt.ssid:
raise utils.BinWifiException('You must specify an ssid with --ssid')
band = opt.band
if band not in ('2.4', '5'):
raise utils.BinWifiException('You must specify band with -b2.4 or -b5')
psk = os.environ.get('WIFI_CLIENT_PSK', None)
if band == '5' and quantenna.set_client_wifi(opt):
return True
mwifiex.set_recovery(experiment.enabled('MwifiexFirmwareRecovery'))
phy = iw.find_phy(band, 'auto')
if phy is None:
utils.log("Couldn't find phy for band %s", band)
return False
interface = iw.find_interface_from_phy(phy, iw.INTERFACE_TYPE.client,
opt.interface_suffix)
if interface is None:
# Create the client interface if it does not exist, using the same number as
# an existing AP interface, which is stable across driver reloads.
interface = client_interface_name(phy, opt.interface_suffix)
if interface is None:
raise utils.BinWifiException(
'AP interface not initialized for %s' % phy)
if not iw.does_interface_exist(interface):
utils.log('Creating client interface %s', interface)
utils.subprocess_quiet(('iw', 'phy', phy, 'interface', 'add',
interface, 'type', 'station'),
no_stdout=True)
ap_mac_address = utils.get_mac_address_for_interface(
iw.find_interface_from_phy(phy, iw.INTERFACE_TYPE.ap,
opt.interface_suffix))
mac_address = utils.increment_mac_address(ap_mac_address)
subprocess.check_call(
('ip', 'link', 'set', interface, 'address', mac_address))
wpa_config = configs.generate_wpa_supplicant_config(opt.ssid, psk, opt)
if not _set_wpa_supplicant_config(interface, wpa_config, opt):
return False
return True
def hostapd_options(band, ssid):
"""Returns hostapd options for bandsteering.
Respects the experiments WifiBandsteering and WifiReverseBandsteering, in that
order.
Uses (and renames if necessary) a preexisting bandsteering directory for this
band, if one exists. Otherwise, creates that directory.
Args:
band: The band on which hostapd is being started.
ssid: The SSID of the AP.
Returns:
A list containing options to be passed to hostapd.
Raises:
BinWifiException: If the directory for storing bandsteering timestamps
cannot be created.
"""
if experiment.enabled('WifiBandsteering'):
target = '5'
elif experiment.enabled('WifiReverseBandsteering'):
target = '2.4'
elif experiment.enabled('WifiHostapdLogging'):
target = ''
else:
return []
band_dir = _bandsteering_dir(band, ssid)
target_dir = _bandsteering_dir(target, ssid)
# Make sure band_dir exist, since we want hostapd to write to it. If there's
# a pre-existing one for the same band, use that; otherwise, create it.
subdirs = (os.path.normpath(path)
for path in glob.glob(os.path.join(_BANDSTEERING_DIR, '*/.')))
for subdir in subdirs:
if os.path.basename(subdir).startswith(band):
try:
os.rename(subdir, band_dir)
except OSError:
raise utils.BinWifiException(
"Couldn't update bandsteering directory")
break
else:
try:
os.makedirs(band_dir)
except OSError as e:
if e.errno != errno.EEXIST:
raise utils.BinWifiException(
"Couldn't create bandsteering directory %s", band_dir)
result = ['-L', band_dir]
if target and band != target:
result += ['-S', target_dir]
return result
def _wait_for_wpa_supplicant_to_associate(interface):
"""Wait for wpa_supplicant to associate.
If it does not associate within a certain period of time, terminate it.
Args:
interface: The interface on which wpa_supplicant is running.
Raises:
BinWifiException: if wpa_supplicant fails to associate and
also cannot be stopped to cleanup after the failure.
Returns:
Whether wpa_supplicant associated within the timeout.
"""
utils.log('Waiting for wpa_supplicant to connect')
i = 0
for i in xrange(100):
if _get_wpa_state(interface) == 'COMPLETED':
utils.log('wpa_supplicant associated after %.1fs', i / 10.0)
return True
sys.stderr.write('.')
sys.stderr.flush()
time.sleep(0.1)
utils.log('wpa_supplicant did not connect after %.1fs.', i / 10.0)
if not _stop_wpa_supplicant(interface):
raise utils.BinWifiException(
"Couldn't stop wpa_supplicant after it failed to connect. "
"Consider killing it manually.")
return False
def scan_wifi(opt):
"""Prints 'iw scan' results.
Args:
opt: The OptDict parsed from command line options.
Returns:
True.
Raises:
BinWifiException: If an expected interface is not found.
"""
band = opt.band.split()[0]
if band == '5' and quantenna.scan_wifi(opt):
return True
interface = iw.find_interface_from_band(band, iw.INTERFACE_TYPE.ap,
opt.interface_suffix)
if interface is None:
raise utils.BinWifiException('No client interface for band %s', band)
scan_args = []
if opt.scan_freq:
scan_args += ['freq', str(opt.scan_freq)]
if opt.scan_ap_force:
scan_args += ['ap-force']
if opt.scan_passive:
scan_args += ['passive']
print(iw.scan(interface, scan_args))
return True
def _ensure_initialized(mode):
"""Ensure that the device is in a state suitable for the given mode."""
if int(_qcsapi('is_startprod_done')):
if (mode == 'scan' or
mode == 'ap' and _qcsapi('get_mode', 'wifi0') == 'Access point' or
mode == 'sta' and _qcsapi('get_mode', 'wifi0') == 'Station'):
return
_qcsapi('restore_default_config', 'noreboot', mode)
_qcsapi('reload_in_mode', 'wifi0', mode)
_qcsapi('rfenable', 1)
else:
_qcsapi('restore_default_config', 'noreboot',
'sta' if mode == 'scan' else mode)
_, _, mac, _ = _get_interface('sta', '')
if mac:
_qcsapi('set_mac_addr', 'wifi0', mac)
_qcsapi('startprod')
for _ in xrange(30):
if int(_qcsapi('is_startprod_done')):
break
time.sleep(1)
else:
raise utils.BinWifiException('startprod timed out')
_qcsapi('rfenable', 1)
def scan_wifi(_):
"""Scan for APs."""
hif, _, _, _ = _get_interface('ap', '')
if not hif:
return False
_ensure_initialized('scan')
_qcsapi('start_scan', 'wifi0')
for _ in xrange(30):
if not int(_qcsapi('get_scanstatus', 'wifi0')):
break
time.sleep(1)
else:
raise utils.BinWifiException('scan timed out')
for i in xrange(int(_qcsapi('get_results_ap_scan', 'wifi0'))):
ssid, mac, channel, rssi, flags, protocols = _parse_scan_result(
_qcsapi('get_properties_ap', 'wifi0', i))
print 'BSS %s(on %s)' % (mac, hif)
print '\tfreq: %d' % (5000 + 5 * channel)
print '\tsignal: %.2f' % rssi
print '\tSSID: %s' % ssid
if flags & 0x1:
if protocols & 0x1:
print '\tWPA:'
if protocols & 0x2:
print '\tRSN:'
return True
def set_4address_mode(interface, on):
try:
setting = 'on' if on else 'off'
subprocess.check_output(
['iw', 'dev', interface, 'set', '4addr', setting])
except subprocess.CalledProcessError as e:
raise utils.BinWifiException('Failed to set 4addr mode %s: %s',
setting, e)
def _maybe_restart_hostapd(interface, config, opt):
"""Starts or restarts hostapd unless doing so would be a no-op.
The no-op case (i.e. hostapd is already running with an equivalent config) can
be overridden with --force-restart.
Args:
interface: The interface on which to start hostapd.
config: A hostapd configuration, as a string.
opt: The OptDict parsed from command line options.
Returns:
Whether hostapd was started successfully.
Raises:
BinWifiException: On various errors.
"""
tmp_config_filename = utils.get_filename('hostapd',
utils.FILENAME_KIND.config,
interface,
tmp=True)
forced = False
current_config = None
try:
with open(tmp_config_filename) as tmp_config_file:
current_config = tmp_config_file.read()
except IOError:
pass
if not _is_hostapd_running(interface):
utils.log('hostapd not running yet, starting.')
elif current_config != config:
utils.log('hostapd config changed, restarting.')
elif opt.force_restart:
utils.log('Forced restart requested.')
forced = True
else:
utils.log('hostapd-%s already configured and running', interface)
return True
if not _stop_hostapd(interface):
raise utils.BinWifiException("Couldn't stop hostapd")
# Set or unset 4-address mode. This has to be done while hostapd is down.
utils.log('%s 4-address mode', 'Enabling' if opt.wds else 'Disabling')
iw.set_4address_mode(interface, opt.wds)
# We don't want to try to rewrite this file if this is just a forced restart.
if not forced:
utils.atomic_write(tmp_config_filename, config)
if not _start_hostapd(interface, tmp_config_filename, opt.band, opt.ssid):
utils.log(
'hostapd failed to start. Look at hostapd logs for details.')
return False
return True
def set_wifi(opt):
"""Enable AP."""
hif, lif, mac, vlan = _get_interface('ap', opt.interface_suffix)
if not hif:
return False
if opt.encryption == 'WEP':
raise utils.BinWifiException('WEP not supported')
stop_ap_wifi(opt)
try:
_ensure_initialized('ap')
_qcsapi('wifi_create_bss', lif, mac)
_qcsapi('set_ssid', lif, opt.ssid)
_qcsapi('set_bw', 'wifi0', opt.width)
_qcsapi('set_channel', 'wifi0',
149 if opt.channel == 'auto' else opt.channel)
if opt.encryption == 'NONE':
_qcsapi('set_beacon_type', lif, 'Basic')
else:
protocol, authentication, encryption = opt.encryption.split('_')
protocol = {'WPA': 'WPA', 'WPA2': '11i', 'WPA12': 'WPAand11i'}[protocol]
authentication += 'Authentication'
encryption += 'Encryption'
_qcsapi('set_beacon_type', lif, protocol)
_qcsapi('set_wpa_authentication_mode', lif, authentication)
_qcsapi('set_wpa_encryption_modes', lif, encryption)
_qcsapi('set_passphrase', lif, 0, os.environ['WIFI_PSK'])
_qcsapi('set_option', lif, 'ssid_broadcast', int(not opt.hidden_mode))
_qcsapi('vlan_config', lif, 'enable')
_qcsapi('vlan_config', lif, 'access', vlan)
_qcsapi('vlan_config', 'pcie0', 'enable')
_qcsapi('vlan_config', 'pcie0', 'trunk', vlan)
_qcsapi('block_bss', lif, 0)
_set_link_state(hif, 'up')
_ifplugd_action(hif, 'up')
except:
stop_ap_wifi(opt)
raise
return True
def set_client_wifi(opt):
"""Enable client."""
hif, lif, _, vlan = _get_interface('sta', opt.interface_suffix)
if not hif:
return False
stop_client_wifi(opt)
try:
_ensure_initialized('sta')
_qcsapi('create_ssid', lif, opt.ssid)
_qcsapi('set_bw', 'wifi0', 80)
if opt.bssid:
_qcsapi('set_ssid_bssid', lif, opt.ssid, opt.bssid)
if opt.encryption == 'NONE' or not os.environ.get('WIFI_CLIENT_PSK'):
_qcsapi('ssid_set_authentication_mode', lif, opt.ssid, 'NONE')
else:
_qcsapi('ssid_set_passphrase', lif, opt.ssid, 0,
os.environ['WIFI_CLIENT_PSK'])
_qcsapi('apply_security_config', lif)
for _ in xrange(10):
if _qcsapi('get_ssid', lif):
break
time.sleep(1)
else:
raise utils.BinWifiException('wpa_supplicant failed to connect')
_qcsapi('vlan_config', lif, 'enable')
_qcsapi('vlan_config', lif, 'access', vlan)
_qcsapi('vlan_config', 'pcie0', 'enable')
_qcsapi('vlan_config', 'pcie0', 'trunk', vlan)
_set_link_state(hif, 'up')
_ifplugd_action(hif, 'up')
except:
stop_client_wifi(opt)
raise
return True
def _restart_hostapd(interface, *overrides):
"""Restart hostapd from previous options.
Only used by _set_wpa_supplicant_config, to restart hostapd after stopping it.
Args:
interface: The interface on which to restart hostapd.
*overrides: A list of options to override the pre-existing ones.
Returns:
Whether hostapd was successfully restarted.
Raises:
BinWifiException: If reading previous settings fails.
"""
argv = persist.load_options('hostapd', interface, True) + list(overrides)
if argv is None:
raise utils.BinWifiException('Failed to read previous hostapd config')
_run(argv)
def _set_wpa_supplicant_config(interface, config, opt):
"""Starts or restarts wpa_supplicant unless doing so would be a no-op.
The no-op case (i.e. wpa_supplicant is already running with an equivalent
config) can be overridden with --force-restart.
Args:
interface: The interface on which to start wpa_supplicant.
config: A wpa_supplicant configuration, as a string.
opt: The OptDict parsed from command line options.
Returns:
Whether wpa_supplicant was started successfully.
Raises:
BinWifiException: On various errors.
"""
tmp_config_filename = utils.get_filename('wpa_supplicant',
utils.FILENAME_KIND.config,
interface,
tmp=True)
forced = False
current_config = None
band = opt.band
try:
with open(tmp_config_filename) as tmp_config_file:
current_config = tmp_config_file.read()
except IOError:
pass
already_running = _is_wpa_supplicant_running(interface)
if not already_running:
utils.log('wpa_supplicant not running yet, starting.')
elif current_config != config:
# TODO(rofrankel): Consider using wpa_cli reconfigure here.
utils.log('wpa_supplicant config changed, reconfiguring.')
elif opt.force_restart:
utils.log('Forced restart requested.')
forced = True
else:
utils.log('wpa_supplicant-%s already configured and running',
interface)
return True
if not forced:
utils.atomic_write(tmp_config_filename, config)
# TODO(rofrankel): Consider removing all the restart hostapd stuff when
# b/30140131 is resolved. hostapd seems to keep working without being
# restarted, at least on Camaro.
restart_hostapd = False
ap_interface = iw.find_interface_from_band(band, iw.INTERFACE_TYPE.ap,
opt.interface_suffix)
if _is_hostapd_running(ap_interface):
restart_hostapd = True
opt_without_persist = options.OptDict({})
opt_without_persist.persist = False
opt_without_persist.band = opt.band
opt_without_persist.interface_suffix = opt.interface_suffix
if not stop_ap_wifi(opt_without_persist):
raise utils.BinWifiException(
"Couldn't stop hostapd to start wpa_supplicant.")
if already_running:
subprocess.check_call(['ifdown', interface])
subprocess.check_call(
['/etc/ifplugd/ifplugd.action', interface, 'down'])
if not _reconfigure_wpa_supplicant(interface):
raise utils.BinWifiException(
'Failed to reconfigure wpa_supplicant.')
subprocess.check_call(['ifup', interface])
subprocess.check_call(['/etc/ifplugd/ifplugd.action', interface, 'up'])
elif not _start_wpa_supplicant(interface, tmp_config_filename):
raise utils.BinWifiException(
'wpa_supplicant failed to start. Look at wpa_supplicant logs for '
'details.')
if restart_hostapd:
_restart_hostapd(ap_interface)
return True
def set_wifi(opt):
"""Set up an access point in response to the 'set' command.
Args:
opt: The OptDict parsed from command line options.
Returns:
Whether setting up the AP succeeded.
Raises:
BinWifiException: On various errors.
"""
band = opt.band
width = opt.width
channel = opt.channel
autotype = opt.autotype
protocols = set(opt.protocols.split('/'))
utils.validate_set_wifi_options(opt)
psk = None
if opt.encryption == 'WEP' or '_PSK_' in opt.encryption:
psk = os.environ['WIFI_PSK']
if band == '5' and quantenna.set_wifi(opt):
return True
if iw.RUNNABLE_WL() and not iw.RUNNABLE_IW():
_set_wifi_broadcom(opt)
return True
if not iw.RUNNABLE_IW():
raise utils.BinWifiException("Can't proceed without iw")
# If this phy is running client mode, we need to use its width/channel.
phy = iw.find_phy(band, channel)
if phy is None:
raise utils.BinWifiException('no wifi phy for band=%s channel=%s',
band, channel)
# Check for calibration errors on ath10k.
qca9880_cal.qca8990_calibration()
mwifiex.set_recovery(experiment.enabled('MwifiexFirmwareRecovery'))
client_interface = iw.find_interface_from_phy(phy,
iw.INTERFACE_TYPE.client,
opt.interface_suffix)
if (client_interface is not None
and _is_wpa_supplicant_running(client_interface)):
# Wait up to ten seconds for interface width and channel to be available
# (only relevant if wpa_supplicant was started recently).
# TODO(rofrankel): Consider shortcutting this loop if wpa_cli shows status
# is SCANNING (and other values)?
utils.log(
'Client running on same band; finding its width and channel.')
for _ in xrange(50):
client_band = _get_wpa_band(client_interface)
client_width, client_channel = iw.find_width_and_channel(
client_interface)
sys.stderr.write('.')
sys.stderr.flush()
if None not in (client_band, client_width, client_channel):
band, width, channel = client_band, client_width, client_channel
utils.log(
'Using band=%s, channel=%s, width=%s MHz from client',
band, channel, width)
break
time.sleep(0.2)
else:
utils.log("Couldn't find band, width, and channel used by client "
"(it may not be connected)")
interface = iw.find_interface_from_phy(phy, iw.INTERFACE_TYPE.ap,
opt.interface_suffix)
if interface is None:
raise utils.BinWifiException(
'no wifi interface found for band=%s channel=%s suffix=%s', band,
channel, opt.interface_suffix)
for ap_interface in iw.find_all_interfaces_from_phy(
phy, iw.INTERFACE_TYPE.ap):
if not _is_hostapd_running(ap_interface):
continue
if ap_interface == interface:
continue
# TODO(rofrankel): Figure out what to do about width. Unlike channel,
# there's no 'auto' default; we don't know if 20 was requested or just
# defaulted to. So it's not clear whether to override the other AP's
# choice.
_, other_ap_channel = iw.find_width_and_channel(ap_interface)
if channel == 'auto':
channel = other_ap_channel
else:
_restart_hostapd(ap_interface, '-c', channel)
utils.log('interface: %s', interface)
utils.log('Configuring cfg80211 wifi.')
pid_filename = utils.get_filename('hostapd',
utils.FILENAME_KIND.pid,
interface,
tmp=True)
utils.log('pidfile: %s', pid_filename)
autotype_filename = '/tmp/autotype.%s' % interface
band_filename = '/tmp/band.%s' % interface
width_filename = '/tmp/width.%s' % interface
autochan_filename = '/tmp/autochan.%s' % interface
old_autotype = utils.read_or_empty(autotype_filename)
old_band = utils.read_or_empty(band_filename)
old_width = utils.read_or_empty(width_filename)
# Special case: if autochannel enabled and we've done it before, just use the
# old autochannel. The main reason for this is we may not be able to run the
# autochannel algorithm without stopping hostapd first, which defeats the code
# that tries not to restart hostapd unnecessarily.
if (channel == 'auto' and
(autotype, band, width) == (old_autotype, old_band, old_width)):
# ...but only if not forced mode. If it's forced, don't use the old
# value, but don't wipe it either.
if not opt.force_restart:
autochan = utils.read_or_empty(autochan_filename)
if autochan and int(autochan) > 0:
utils.log('Reusing old autochannel=%s', autochan)
channel = autochan
else:
# forget old autochannel setting
if os.path.exists(autochan_filename):
try:
os.remove(autochan_filename)
except OSError:
utils.log('Failed to remove autochan file.')
if channel == 'auto':
utils.atomic_write(autochan_filename, '')
try:
channel = autochannel.scan(interface, band, autotype, width)
except ValueError as e:
raise utils.BinWifiException('Autochannel scan failed: %s', e)
utils.atomic_write(autochan_filename, channel)
utils.atomic_write(autotype_filename, autotype)
utils.atomic_write(band_filename, band)
utils.atomic_write(width_filename, width)
utils.log('using channel=%s', channel)
try:
utils.log('getting phy info...')
with open(os.devnull, 'w') as devnull:
try:
phy_info = subprocess.check_output(('iw', 'phy', phy, 'info'),
stderr=devnull)
except subprocess.CalledProcessError as e:
raise utils.BinWifiException(
'Failed to get phy info for phy %s: %s', phy, e)
hostapd_config = configs.generate_hostapd_config(
phy_info, interface, band, channel, width, protocols, psk, opt)
except ValueError as e:
raise utils.BinWifiException('Invalid option: %s', e)
return _maybe_restart_hostapd(interface, hostapd_config, opt)
def _set_wifi_broadcom(opt):
"""Set up wifi using wl, for Broadcom chips.
Args:
opt: The OptDict parsed from command line options.
Raises:
BinWifiException: On various errors.
"""
def wl(*args):
utils.log('wl %s', ' '.join(args))
subprocess.check_call(('wl') + list(args))
utils.log('Configuring broadcom wifi.')
wl('radio', 'on')
wl('down')
wl('ssid', '')
band = opt.band
if opt.channel != 'auto':
band = 'auto'
try:
wl('band', {'2.4': 'b', '5': 'a', 'auto': 'auto'}[band])
except KeyError:
raise utils.BinWifiException('Invalid band %s', band)
wl('ap', '0')
wl('up')
if opt.channel == 'auto':
# We can only run autochannel when ap=0, but setting ap=1 later will wipe
# the value. So we have to capture the autochannel setting, then set it
# later. 'wl autochannel 2' is thus useless.
wl('autochannel', '1')
# enough time to scan all the 2.4 or 5 GHz channels at 100ms each
time.sleep(3)
utils.log('wl autochannel')
channel = subprocess.check_output(('wl', 'autochannel')).split()[0]
wl('ap', '1')
wl('chanspec', channel)
wl('auth', '0')
wl('infra', '1')
try:
wl('wsec', {
'_AES': '4',
'TKIP': '2',
'WEP': '1',
'NONE': '0'
}[opt.encryption[-4:]])
except KeyError:
raise utils.BinWifiException('invalid crypto %s', opt.encryption)
wl('sup_wpa', '1')
try:
wl('wpa_auth', {
'WPA_': '4',
'WPA2': '128',
'WEP': '0',
'NONE': '0'
}[opt.encryption[:4]])
except KeyError:
raise utils.BinWifiException('invalid crypto %s', opt.encryption)
wl('up')
if '_PSK_' in opt.encryption:
# WPA keys must be added *before* setting the SSID
wl('set_pmk', os.environ['WIFI_PSK'])
wl('ssid', opt.ssid)
elif opt.encryption == 'WEP':
# WEP keys must be added *after* setting the SSID
wl('ssid', opt.ssid)
wl('set_pmk', os.environ['WIFI_PSK'])
elif opt.encryption == 'NONE':
wl('ssid', opt.ssid)
else:
raise utils.BinWifiException('invalid crypto %s', opt.encryption)
def generate_hostapd_config(phy_info, interface, band, channel, width,
protocols, psk, opt):
"""Generates a hostpad config from the given arguments.
Args:
phy_info: The result of running 'iw phy <phy> info' where <phy> is the phy
on which hostapd will run.
interface: The interface on which hostapd will run.
band: The band on which hostapd will run.
channel: The channel on which hostapd will run.
width: The channel width with which hostapd will run.
protocols: The supported 802.11 protocols, as a collection of
single-character strings (e.g. ['a', 'g', 'n'])
psk: The PSK to use for the AP.
opt: The OptDict parsed from command line options.
Returns:
The generated hostapd config, as a string.
Raises:
ValueError: For certain invalid combinations of arguments.
"""
utils.log('generating configuration...')
if band == '2.4':
hostapd_band = 'g' if set(('n', 'g')) & protocols else 'b'
else:
hostapd_band = 'a'
ampdu = ''
enable_80211n = ''
enable_80211ac = ''
require_ht = ''
require_vht = ''
ht20 = ''
ht40 = ''
ht_rxstbc = ''
vht_settings = ''
guard_interval = ('[SHORT-GI-20][SHORT-GI-40]'
if opt.short_guard_interval else '')
vht_guard_interval = '[SHORT-GI-80]' if opt.short_guard_interval else ''
if 'RX STBC 3-stream' in phy_info:
ht_rxstbc = '[RX-STBC123]'
if 'RX STBC 2-stream' in phy_info:
ht_rxstbc = '[RX-STBC12]'
if 'RX STBC 1-stream' in phy_info:
ht_rxstbc = '[RX-STBC1]'
if 'n' in protocols:
enable_80211n = 'ieee80211n=1'
ht20 = '[HT20]'
if 'ac' in protocols:
if width == '80':
enable_80211ac = 'ieee80211ac=1'
if 'Maximum RX AMPDU length 16383 bytes' in phy_info:
ampdu = '[MAX-A-MPDU-LEN-EXP1]'
if 'Maximum RX AMPDU length 32767 bytes' in phy_info:
ampdu = '[MAX-A-MPDU-LEN-EXP2]'
if 'Maximum RX AMPDU length 65535 bytes' in phy_info:
ampdu = '[MAX-A-MPDU-LEN-EXP3]'
if 'Maximum RX AMPDU length 131071 bytes' in phy_info:
ampdu = '[MAX-A-MPDU-LEN-EXP4]'
if 'Maximum RX AMPDU length 262143 bytes' in phy_info:
ampdu = '[MAX-A-MPDU-LEN-EXP5]'
if 'Maximum RX AMPDU length 524287 bytes' in phy_info:
ampdu = '[MAX-A-MPDU-LEN-EXP6]'
if 'Maximum RX AMPDU length 1048575 bytes' in phy_info:
ampdu = '[MAX-A-MPDU-LEN-EXP7]'
if not set(('a', 'b', 'ab', 'g')) & protocols:
require_ht = 'require_ht=1'
if not set(('a', 'b', 'ab', 'g', 'n')) & protocols:
require_vht = 'require_vht=1'
if opt.encryption.startswith('WPA_PSK_'):
auth_algs, wpa = 1, 1
elif opt.encryption.startswith('WPA2_PSK_'):
auth_algs, wpa = 1, 2
elif opt.encryption.startswith('WPA12_PSK_'):
auth_algs, wpa = 1, 3
elif opt.encryption.startswith('WEP'):
auth_algs, wpa = 3, 0
elif opt.encryption.startswith('NONE'):
auth_algs, wpa = 1, 0
else:
raise ValueError('Invalid crypto protocol: %s' % opt.encryption)
if opt.encryption[-4:] in ('_AES', 'WEP', 'NONE'):
wpa_pairwise = 'CCMP'
elif opt.encryption.endswith('_TKIP'):
wpa_pairwise = 'TKIP'
else:
raise ValueError('Invalid crypto protocol: %s' % opt.encryption)
if int(width) >= 40:
if '%s+' % channel in _HT_DIRECTIONS.split():
ht40 = '[HT40+]'
elif '%s-' % channel in _HT_DIRECTIONS.split():
ht40 = '[HT40-]'
else:
raise ValueError(
'HT40 requested but not available on channel %s.' % channel)
if width == '80':
ldpc = '[RXLDPC]'
vht_base = ''
for base in _VHT_BASES.split():
if base.startswith('%s=' % channel):
vht_base = base.split('=')[1]
break
if vht_base:
vht_settings = _VHT_SETTINGS_TPL.format(
ampdu=ampdu,
vht_guard_interval=vht_guard_interval,
ldpc=ldpc,
vht_base=int(vht_base) + 6)
else:
raise ValueError(
'VHT80 requested but not available on channel %s' % channel)
try:
bssid = None
if subprocess.call(('is-network-box')) == 0:
mac_addr_hnvram = ('MAC_ADDR_WIFI' +
('' if interface.startswith('wlan0') else '2'))
bssid = utils.subprocess_output_or_none(
('hnvram', '-qr', mac_addr_hnvram))
if bssid is None:
bssid = utils.subprocess_output_or_none(
('hnvram', '-rq', 'MAC_ADDR'))
if bssid is None:
raise utils.BinWifiException(
'Box has no MAC_ADDR_WIFI, MAC_ADDR_WIFI2, or MAC_ADDR. You can '
'set these with e.g. '
"'# hnvram -w MAC_ADDR_WIFI=00:00:00:00:00:00'")
except OSError:
pass
enable_wmm = 'wmm_enabled=1' if opt.enable_wmm else ''
hidden = 'ignore_broadcast_ssid=1' if opt.hidden_mode else ''
bridge = 'bridge=%s' % opt.bridge if opt.bridge else ''
ap_isolate = 'ap_isolate=1' if opt.client_isolation else ''
wds = 'wds_sta=1' if opt.wds else ''
hostapd_conf_parts = [
_HOSTCONF_TPL.format(interface=interface,
band=band,
channel=channel,
width=width,
protocols=protocols,
hostapd_band=hostapd_band,
enable_80211n=enable_80211n,
enable_80211ac=enable_80211ac,
require_ht=require_ht,
require_vht=require_vht,
ht20=ht20,
ht40=ht40,
ht_rxstbc=ht_rxstbc,
vht_settings=vht_settings,
guard_interval=guard_interval,
enable_wmm=enable_wmm,
hidden=hidden,
ap_isolate=ap_isolate,
auth_algs=auth_algs,
bridge=bridge,
ssid=utils.sanitize_ssid(opt.ssid),
wds=wds,
vendor_elements=get_vendor_elements(opt))
]
if opt.encryption != 'NONE':
hostapd_conf_parts.append(
_HOSTCONF_WPA_TPL.format(psk=utils.validate_and_sanitize_psk(psk),
wpa=wpa,
wpa_pairwise=wpa_pairwise))
if experiment.enabled('Wifi80211k'):
hostapd_conf_parts.append(
_EXPERIMENT_80211K_TPL.format(interface=interface))
if opt.yottasecond_timeouts:
hostapd_conf_parts.append(_YOTTASECOND_TIMEOUTS_TPL)
elif opt.extra_short_timeouts >= 2:
hostapd_conf_parts.append(_EXTRA_SHORT_TIMEOUTS2_TPL)
elif opt.extra_short_timeouts >= 1:
hostapd_conf_parts.append(_EXTRA_SHORT_TIMEOUTS1_TPL)
# Track the active experiments the last time hostapd was started:
# - for easier examination of the state
# - to make sure the config counts as changed whenever the set of
# experiments changes.
active_experiments = [i for i in EXPERIMENTS if experiment.enabled(i)]
hostapd_conf_parts.append('# Experiments: (%s)\n' %
','.join(active_experiments))
utils.log('configuration ready.')
return '\n'.join(hostapd_conf_parts)