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      1 # Example wpa_supplicant build time configuration
      2 #
      3 # This file lists the configuration options that are used when building the
      4 # hostapd binary. All lines starting with # are ignored. Configuration option
      5 # lines must be commented out complete, if they are not to be included, i.e.,
      6 # just setting VARIABLE=n is not disabling that variable.
      7 #
      8 # This file is included in Makefile, so variables like CFLAGS and LIBS can also
      9 # be modified from here. In most cases, these lines should use += in order not
     10 # to override previous values of the variables.
     11 
     12 
     13 # Uncomment following two lines and fix the paths if you have installed OpenSSL
     14 # or GnuTLS in non-default location
     15 #CFLAGS += -I/usr/local/openssl/include
     16 #LIBS += -L/usr/local/openssl/lib
     17 
     18 # Some Red Hat versions seem to include kerberos header files from OpenSSL, but
     19 # the kerberos files are not in the default include path. Following line can be
     20 # used to fix build issues on such systems (krb5.h not found).
     21 #CFLAGS += -I/usr/include/kerberos
     22 
     23 # Example configuration for various cross-compilation platforms
     24 
     25 #### sveasoft (e.g., for Linksys WRT54G) ######################################
     26 #CC=mipsel-uclibc-gcc
     27 #CC=/opt/brcm/hndtools-mipsel-uclibc/bin/mipsel-uclibc-gcc
     28 #CFLAGS += -Os
     29 #CPPFLAGS += -I../src/include -I../../src/router/openssl/include
     30 #LIBS += -L/opt/brcm/hndtools-mipsel-uclibc-0.9.19/lib -lssl
     31 ###############################################################################
     32 
     33 #### openwrt (e.g., for Linksys WRT54G) #######################################
     34 #CC=mipsel-uclibc-gcc
     35 #CC=/opt/brcm/hndtools-mipsel-uclibc/bin/mipsel-uclibc-gcc
     36 #CFLAGS += -Os
     37 #CPPFLAGS=-I../src/include -I../openssl-0.9.7d/include \
     38 #	-I../WRT54GS/release/src/include
     39 #LIBS = -lssl
     40 ###############################################################################
     41 
     42 
     43 # Driver interface for Host AP driver
     44 CONFIG_DRIVER_HOSTAP=y
     45 
     46 # Driver interface for Agere driver
     47 #CONFIG_DRIVER_HERMES=y
     48 # Change include directories to match with the local setup
     49 #CFLAGS += -I../../hcf -I../../include -I../../include/hcf
     50 #CFLAGS += -I../../include/wireless
     51 
     52 # Driver interface for madwifi driver
     53 # Deprecated; use CONFIG_DRIVER_WEXT=y instead.
     54 #CONFIG_DRIVER_MADWIFI=y
     55 # Set include directory to the madwifi source tree
     56 #CFLAGS += -I../../madwifi
     57 
     58 # Driver interface for ndiswrapper
     59 # Deprecated; use CONFIG_DRIVER_WEXT=y instead.
     60 #CONFIG_DRIVER_NDISWRAPPER=y
     61 
     62 # Driver interface for Atmel driver
     63 CONFIG_DRIVER_ATMEL=y
     64 
     65 # Driver interface for old Broadcom driver
     66 # Please note that the newer Broadcom driver ("hybrid Linux driver") supports
     67 # Linux wireless extensions and does not need (or even work) with the old
     68 # driver wrapper. Use CONFIG_DRIVER_WEXT=y with that driver.
     69 #CONFIG_DRIVER_BROADCOM=y
     70 # Example path for wlioctl.h; change to match your configuration
     71 #CFLAGS += -I/opt/WRT54GS/release/src/include
     72 
     73 # Driver interface for Intel ipw2100/2200 driver
     74 # Deprecated; use CONFIG_DRIVER_WEXT=y instead.
     75 #CONFIG_DRIVER_IPW=y
     76 
     77 # Driver interface for Ralink driver
     78 #CONFIG_DRIVER_RALINK=y
     79 
     80 # Driver interface for generic Linux wireless extensions
     81 # Note: WEXT is deprecated in the current Linux kernel version and no new
     82 # functionality is added to it. nl80211-based interface is the new
     83 # replacement for WEXT and its use allows wpa_supplicant to properly control
     84 # the driver to improve existing functionality like roaming and to support new
     85 # functionality.
     86 CONFIG_DRIVER_WEXT=y
     87 
     88 # Driver interface for Linux drivers using the nl80211 kernel interface
     89 CONFIG_DRIVER_NL80211=y
     90 
     91 # Driver interface for FreeBSD net80211 layer (e.g., Atheros driver)
     92 #CONFIG_DRIVER_BSD=y
     93 #CFLAGS += -I/usr/local/include
     94 #LIBS += -L/usr/local/lib
     95 #LIBS_p += -L/usr/local/lib
     96 #LIBS_c += -L/usr/local/lib
     97 
     98 # Driver interface for Windows NDIS
     99 #CONFIG_DRIVER_NDIS=y
    100 #CFLAGS += -I/usr/include/w32api/ddk
    101 #LIBS += -L/usr/local/lib
    102 # For native build using mingw
    103 #CONFIG_NATIVE_WINDOWS=y
    104 # Additional directories for cross-compilation on Linux host for mingw target
    105 #CFLAGS += -I/opt/mingw/mingw32/include/ddk
    106 #LIBS += -L/opt/mingw/mingw32/lib
    107 #CC=mingw32-gcc
    108 # By default, driver_ndis uses WinPcap for low-level operations. This can be
    109 # replaced with the following option which replaces WinPcap calls with NDISUIO.
    110 # However, this requires that WZC is disabled (net stop wzcsvc) before starting
    111 # wpa_supplicant.
    112 # CONFIG_USE_NDISUIO=y
    113 
    114 # Driver interface for development testing
    115 #CONFIG_DRIVER_TEST=y
    116 
    117 # Driver interface for wired Ethernet drivers
    118 CONFIG_DRIVER_WIRED=y
    119 
    120 # Driver interface for the Broadcom RoboSwitch family
    121 #CONFIG_DRIVER_ROBOSWITCH=y
    122 
    123 # Driver interface for no driver (e.g., WPS ER only)
    124 #CONFIG_DRIVER_NONE=y
    125 
    126 # Solaris libraries
    127 #LIBS += -lsocket -ldlpi -lnsl
    128 #LIBS_c += -lsocket
    129 
    130 # Enable IEEE 802.1X Supplicant (automatically included if any EAP method is
    131 # included)
    132 CONFIG_IEEE8021X_EAPOL=y
    133 
    134 # EAP-MD5
    135 CONFIG_EAP_MD5=y
    136 
    137 # EAP-MSCHAPv2
    138 CONFIG_EAP_MSCHAPV2=y
    139 
    140 # EAP-TLS
    141 CONFIG_EAP_TLS=y
    142 
    143 # EAL-PEAP
    144 CONFIG_EAP_PEAP=y
    145 
    146 # EAP-TTLS
    147 CONFIG_EAP_TTLS=y
    148 
    149 # EAP-FAST
    150 # Note: Default OpenSSL package does not include support for all the
    151 # functionality needed for EAP-FAST. If EAP-FAST is enabled with OpenSSL,
    152 # the OpenSSL library must be patched (openssl-0.9.8d-tls-extensions.patch)
    153 # to add the needed functions.
    154 #CONFIG_EAP_FAST=y
    155 
    156 # EAP-GTC
    157 CONFIG_EAP_GTC=y
    158 
    159 # EAP-OTP
    160 CONFIG_EAP_OTP=y
    161 
    162 # EAP-SIM (enable CONFIG_PCSC, if EAP-SIM is used)
    163 #CONFIG_EAP_SIM=y
    164 
    165 # EAP-PSK (experimental; this is _not_ needed for WPA-PSK)
    166 #CONFIG_EAP_PSK=y
    167 
    168 # EAP-pwd (secure authentication using only a password)
    169 #CONFIG_EAP_PWD=y
    170 
    171 # EAP-PAX
    172 #CONFIG_EAP_PAX=y
    173 
    174 # LEAP
    175 CONFIG_EAP_LEAP=y
    176 
    177 # EAP-AKA (enable CONFIG_PCSC, if EAP-AKA is used)
    178 #CONFIG_EAP_AKA=y
    179 
    180 # EAP-AKA' (enable CONFIG_PCSC, if EAP-AKA' is used).
    181 # This requires CONFIG_EAP_AKA to be enabled, too.
    182 #CONFIG_EAP_AKA_PRIME=y
    183 
    184 # Enable USIM simulator (Milenage) for EAP-AKA
    185 #CONFIG_USIM_SIMULATOR=y
    186 
    187 # EAP-SAKE
    188 #CONFIG_EAP_SAKE=y
    189 
    190 # EAP-GPSK
    191 #CONFIG_EAP_GPSK=y
    192 # Include support for optional SHA256 cipher suite in EAP-GPSK
    193 #CONFIG_EAP_GPSK_SHA256=y
    194 
    195 # EAP-TNC and related Trusted Network Connect support (experimental)
    196 #CONFIG_EAP_TNC=y
    197 
    198 # Wi-Fi Protected Setup (WPS)
    199 #CONFIG_WPS=y
    200 # Enable WSC 2.0 support
    201 #CONFIG_WPS2=y
    202 # Enable WPS external registrar functionality
    203 #CONFIG_WPS_ER=y
    204 # Disable credentials for an open network by default when acting as a WPS
    205 # registrar.
    206 #CONFIG_WPS_REG_DISABLE_OPEN=y
    207 # Enable WPS support with NFC config method
    208 #CONFIG_WPS_NFC=y
    209 
    210 # EAP-IKEv2
    211 #CONFIG_EAP_IKEV2=y
    212 
    213 # PKCS#12 (PFX) support (used to read private key and certificate file from
    214 # a file that usually has extension .p12 or .pfx)
    215 CONFIG_PKCS12=y
    216 
    217 # Smartcard support (i.e., private key on a smartcard), e.g., with openssl
    218 # engine.
    219 CONFIG_SMARTCARD=y
    220 
    221 # PC/SC interface for smartcards (USIM, GSM SIM)
    222 # Enable this if EAP-SIM or EAP-AKA is included
    223 #CONFIG_PCSC=y
    224 
    225 # Support HT overrides (disable HT/HT40, mask MCS rates, etc.)
    226 #CONFIG_HT_OVERRIDES=y
    227 
    228 # Support VHT overrides (disable VHT, mask MCS rates, etc.)
    229 #CONFIG_VHT_OVERRIDES=y
    230 
    231 # Development testing
    232 #CONFIG_EAPOL_TEST=y
    233 
    234 # Select control interface backend for external programs, e.g, wpa_cli:
    235 # unix = UNIX domain sockets (default for Linux/*BSD)
    236 # udp = UDP sockets using localhost (127.0.0.1)
    237 # named_pipe = Windows Named Pipe (default for Windows)
    238 # udp-remote = UDP sockets with remote access (only for tests systems/purpose)
    239 # y = use default (backwards compatibility)
    240 # If this option is commented out, control interface is not included in the
    241 # build.
    242 CONFIG_CTRL_IFACE=y
    243 
    244 # Include support for GNU Readline and History Libraries in wpa_cli.
    245 # When building a wpa_cli binary for distribution, please note that these
    246 # libraries are licensed under GPL and as such, BSD license may not apply for
    247 # the resulting binary.
    248 #CONFIG_READLINE=y
    249 
    250 # Include internal line edit mode in wpa_cli. This can be used as a replacement
    251 # for GNU Readline to provide limited command line editing and history support.
    252 #CONFIG_WPA_CLI_EDIT=y
    253 
    254 # Remove debugging code that is printing out debug message to stdout.
    255 # This can be used to reduce the size of the wpa_supplicant considerably
    256 # if debugging code is not needed. The size reduction can be around 35%
    257 # (e.g., 90 kB).
    258 #CONFIG_NO_STDOUT_DEBUG=y
    259 
    260 # Remove WPA support, e.g., for wired-only IEEE 802.1X supplicant, to save
    261 # 35-50 kB in code size.
    262 #CONFIG_NO_WPA=y
    263 
    264 # Remove WPA2 support. This allows WPA to be used, but removes WPA2 code to
    265 # save about 1 kB in code size when building only WPA-Personal (no EAP support)
    266 # or 6 kB if building for WPA-Enterprise.
    267 #CONFIG_NO_WPA2=y
    268 
    269 # Remove IEEE 802.11i/WPA-Personal ASCII passphrase support
    270 # This option can be used to reduce code size by removing support for
    271 # converting ASCII passphrases into PSK. If this functionality is removed, the
    272 # PSK can only be configured as the 64-octet hexstring (e.g., from
    273 # wpa_passphrase). This saves about 0.5 kB in code size.
    274 #CONFIG_NO_WPA_PASSPHRASE=y
    275 
    276 # Disable scan result processing (ap_mode=1) to save code size by about 1 kB.
    277 # This can be used if ap_scan=1 mode is never enabled.
    278 #CONFIG_NO_SCAN_PROCESSING=y
    279 
    280 # Select configuration backend:
    281 # file = text file (e.g., wpa_supplicant.conf; note: the configuration file
    282 #	path is given on command line, not here; this option is just used to
    283 #	select the backend that allows configuration files to be used)
    284 # winreg = Windows registry (see win_example.reg for an example)
    285 CONFIG_BACKEND=file
    286 
    287 # Remove configuration write functionality (i.e., to allow the configuration
    288 # file to be updated based on runtime configuration changes). The runtime
    289 # configuration can still be changed, the changes are just not going to be
    290 # persistent over restarts. This option can be used to reduce code size by
    291 # about 3.5 kB.
    292 #CONFIG_NO_CONFIG_WRITE=y
    293 
    294 # Remove support for configuration blobs to reduce code size by about 1.5 kB.
    295 #CONFIG_NO_CONFIG_BLOBS=y
    296 
    297 # Select program entry point implementation:
    298 # main = UNIX/POSIX like main() function (default)
    299 # main_winsvc = Windows service (read parameters from registry)
    300 # main_none = Very basic example (development use only)
    301 #CONFIG_MAIN=main
    302 
    303 # Select wrapper for operatins system and C library specific functions
    304 # unix = UNIX/POSIX like systems (default)
    305 # win32 = Windows systems
    306 # none = Empty template
    307 #CONFIG_OS=unix
    308 
    309 # Select event loop implementation
    310 # eloop = select() loop (default)
    311 # eloop_win = Windows events and WaitForMultipleObject() loop
    312 # eloop_none = Empty template
    313 #CONFIG_ELOOP=eloop
    314 
    315 # Should we use poll instead of select? Select is used by default.
    316 #CONFIG_ELOOP_POLL=y
    317 
    318 # Select layer 2 packet implementation
    319 # linux = Linux packet socket (default)
    320 # pcap = libpcap/libdnet/WinPcap
    321 # freebsd = FreeBSD libpcap
    322 # winpcap = WinPcap with receive thread
    323 # ndis = Windows NDISUIO (note: requires CONFIG_USE_NDISUIO=y)
    324 # none = Empty template
    325 #CONFIG_L2_PACKET=linux
    326 
    327 # PeerKey handshake for Station to Station Link (IEEE 802.11e DLS)
    328 CONFIG_PEERKEY=y
    329 
    330 # IEEE 802.11w (management frame protection), also known as PMF
    331 # Driver support is also needed for IEEE 802.11w.
    332 #CONFIG_IEEE80211W=y
    333 
    334 # Select TLS implementation
    335 # openssl = OpenSSL (default)
    336 # gnutls = GnuTLS
    337 # internal = Internal TLSv1 implementation (experimental)
    338 # none = Empty template
    339 #CONFIG_TLS=openssl
    340 
    341 # TLS-based EAP methods require at least TLS v1.0. Newer version of TLS (v1.1)
    342 # can be enabled to get a stronger construction of messages when block ciphers
    343 # are used. It should be noted that some existing TLS v1.0 -based
    344 # implementation may not be compatible with TLS v1.1 message (ClientHello is
    345 # sent prior to negotiating which version will be used)
    346 #CONFIG_TLSV11=y
    347 
    348 # TLS-based EAP methods require at least TLS v1.0. Newer version of TLS (v1.2)
    349 # can be enabled to enable use of stronger crypto algorithms. It should be
    350 # noted that some existing TLS v1.0 -based implementation may not be compatible
    351 # with TLS v1.2 message (ClientHello is sent prior to negotiating which version
    352 # will be used)
    353 #CONFIG_TLSV12=y
    354 
    355 # If CONFIG_TLS=internal is used, additional library and include paths are
    356 # needed for LibTomMath. Alternatively, an integrated, minimal version of
    357 # LibTomMath can be used. See beginning of libtommath.c for details on benefits
    358 # and drawbacks of this option.
    359 #CONFIG_INTERNAL_LIBTOMMATH=y
    360 #ifndef CONFIG_INTERNAL_LIBTOMMATH
    361 #LTM_PATH=/usr/src/libtommath-0.39
    362 #CFLAGS += -I$(LTM_PATH)
    363 #LIBS += -L$(LTM_PATH)
    364 #LIBS_p += -L$(LTM_PATH)
    365 #endif
    366 # At the cost of about 4 kB of additional binary size, the internal LibTomMath
    367 # can be configured to include faster routines for exptmod, sqr, and div to
    368 # speed up DH and RSA calculation considerably
    369 #CONFIG_INTERNAL_LIBTOMMATH_FAST=y
    370 
    371 # Include NDIS event processing through WMI into wpa_supplicant/wpasvc.
    372 # This is only for Windows builds and requires WMI-related header files and
    373 # WbemUuid.Lib from Platform SDK even when building with MinGW.
    374 #CONFIG_NDIS_EVENTS_INTEGRATED=y
    375 #PLATFORMSDKLIB="/opt/Program Files/Microsoft Platform SDK/Lib"
    376 
    377 # Add support for old DBus control interface
    378 # (fi.epitest.hostap.WPASupplicant)
    379 #CONFIG_CTRL_IFACE_DBUS=y
    380 
    381 # Add support for new DBus control interface
    382 # (fi.w1.hostap.wpa_supplicant1)
    383 #CONFIG_CTRL_IFACE_DBUS_NEW=y
    384 
    385 # Add introspection support for new DBus control interface
    386 #CONFIG_CTRL_IFACE_DBUS_INTRO=y
    387 
    388 # Add support for loading EAP methods dynamically as shared libraries.
    389 # When this option is enabled, each EAP method can be either included
    390 # statically (CONFIG_EAP_<method>=y) or dynamically (CONFIG_EAP_<method>=dyn).
    391 # Dynamic EAP methods are build as shared objects (eap_*.so) and they need to
    392 # be loaded in the beginning of the wpa_supplicant configuration file
    393 # (see load_dynamic_eap parameter in the example file) before being used in
    394 # the network blocks.
    395 #
    396 # Note that some shared parts of EAP methods are included in the main program
    397 # and in order to be able to use dynamic EAP methods using these parts, the
    398 # main program must have been build with the EAP method enabled (=y or =dyn).
    399 # This means that EAP-TLS/PEAP/TTLS/FAST cannot be added as dynamic libraries
    400 # unless at least one of them was included in the main build to force inclusion
    401 # of the shared code. Similarly, at least one of EAP-SIM/AKA must be included
    402 # in the main build to be able to load these methods dynamically.
    403 #
    404 # Please also note that using dynamic libraries will increase the total binary
    405 # size. Thus, it may not be the best option for targets that have limited
    406 # amount of memory/flash.
    407 #CONFIG_DYNAMIC_EAP_METHODS=y
    408 
    409 # IEEE Std 802.11r-2008 (Fast BSS Transition)
    410 #CONFIG_IEEE80211R=y
    411 
    412 # Add support for writing debug log to a file (/tmp/wpa_supplicant-log-#.txt)
    413 #CONFIG_DEBUG_FILE=y
    414 
    415 # Send debug messages to syslog instead of stdout
    416 #CONFIG_DEBUG_SYSLOG=y
    417 # Set syslog facility for debug messages
    418 #CONFIG_DEBUG_SYSLOG_FACILITY=LOG_DAEMON
    419 
    420 # Add support for sending all debug messages (regardless of debug verbosity)
    421 # to the Linux kernel tracing facility. This helps debug the entire stack by
    422 # making it easy to record everything happening from the driver up into the
    423 # same file, e.g., using trace-cmd.
    424 #CONFIG_DEBUG_LINUX_TRACING=y
    425 
    426 # Enable privilege separation (see README 'Privilege separation' for details)
    427 #CONFIG_PRIVSEP=y
    428 
    429 # Enable mitigation against certain attacks against TKIP by delaying Michael
    430 # MIC error reports by a random amount of time between 0 and 60 seconds
    431 #CONFIG_DELAYED_MIC_ERROR_REPORT=y
    432 
    433 # Enable tracing code for developer debugging
    434 # This tracks use of memory allocations and other registrations and reports
    435 # incorrect use with a backtrace of call (or allocation) location.
    436 #CONFIG_WPA_TRACE=y
    437 # For BSD, uncomment these.
    438 #LIBS += -lexecinfo
    439 #LIBS_p += -lexecinfo
    440 #LIBS_c += -lexecinfo
    441 
    442 # Use libbfd to get more details for developer debugging
    443 # This enables use of libbfd to get more detailed symbols for the backtraces
    444 # generated by CONFIG_WPA_TRACE=y.
    445 #CONFIG_WPA_TRACE_BFD=y
    446 # For BSD, uncomment these.
    447 #LIBS += -lbfd -liberty -lz
    448 #LIBS_p += -lbfd -liberty -lz
    449 #LIBS_c += -lbfd -liberty -lz
    450 
    451 # wpa_supplicant depends on strong random number generation being available
    452 # from the operating system. os_get_random() function is used to fetch random
    453 # data when needed, e.g., for key generation. On Linux and BSD systems, this
    454 # works by reading /dev/urandom. It should be noted that the OS entropy pool
    455 # needs to be properly initialized before wpa_supplicant is started. This is
    456 # important especially on embedded devices that do not have a hardware random
    457 # number generator and may by default start up with minimal entropy available
    458 # for random number generation.
    459 #
    460 # As a safety net, wpa_supplicant is by default trying to internally collect
    461 # additional entropy for generating random data to mix in with the data fetched
    462 # from the OS. This by itself is not considered to be very strong, but it may
    463 # help in cases where the system pool is not initialized properly. However, it
    464 # is very strongly recommended that the system pool is initialized with enough
    465 # entropy either by using hardware assisted random number generator or by
    466 # storing state over device reboots.
    467 #
    468 # wpa_supplicant can be configured to maintain its own entropy store over
    469 # restarts to enhance random number generation. This is not perfect, but it is
    470 # much more secure than using the same sequence of random numbers after every
    471 # reboot. This can be enabled with -e<entropy file> command line option. The
    472 # specified file needs to be readable and writable by wpa_supplicant.
    473 #
    474 # If the os_get_random() is known to provide strong random data (e.g., on
    475 # Linux/BSD, the board in question is known to have reliable source of random
    476 # data from /dev/urandom), the internal wpa_supplicant random pool can be
    477 # disabled. This will save some in binary size and CPU use. However, this
    478 # should only be considered for builds that are known to be used on devices
    479 # that meet the requirements described above.
    480 #CONFIG_NO_RANDOM_POOL=y
    481 
    482 # IEEE 802.11n (High Throughput) support (mainly for AP mode)
    483 #CONFIG_IEEE80211N=y
    484 
    485 # Wireless Network Management (IEEE Std 802.11v-2011)
    486 # Note: This is experimental and not complete implementation.
    487 #CONFIG_WNM=y
    488 
    489 # Interworking (IEEE 802.11u)
    490 # This can be used to enable functionality to improve interworking with
    491 # external networks (GAS/ANQP to learn more about the networks and network
    492 # selection based on available credentials).
    493 #CONFIG_INTERWORKING=y
    494 
    495 # Hotspot 2.0
    496 #CONFIG_HS20=y
    497 
    498 # AP mode operations with wpa_supplicant
    499 # This can be used for controlling AP mode operations with wpa_supplicant. It
    500 # should be noted that this is mainly aimed at simple cases like
    501 # WPA2-Personal while more complex configurations like WPA2-Enterprise with an
    502 # external RADIUS server can be supported with hostapd.
    503 #CONFIG_AP=y
    504 
    505 # P2P (Wi-Fi Direct)
    506 # This can be used to enable P2P support in wpa_supplicant. See README-P2P for
    507 # more information on P2P operations.
    508 #CONFIG_P2P=y
    509 
    510 # Autoscan
    511 # This can be used to enable automatic scan support in wpa_supplicant.
    512 #See wpa_supplicant.conf for more information on autoscan usage.
    513 #
    514 # Enabling directly a module will enable autoscan support.
    515 # For exponential module:
    516 #CONFIG_AUTOSCAN_EXPONENTIAL=y
    517 # For periodic module:
    518 #CONFIG_AUTOSCAN_PERIODIC=y
    519 
    520 # Password (and passphrase, etc.) backend for external storage
    521 # These optional mechanisms can be used to add support for storing passwords
    522 # and other secrets in external (to wpa_supplicant) location. This allows, for
    523 # example, operating system specific key storage to be used
    524 #
    525 # External password backend for testing purposes (developer use)
    526 #CONFIG_EXT_PASSWORD_TEST=y
    527