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      1 /*
      2  * WPA Supplicant / Configuration file structures
      3  * Copyright (c) 2003-2012, Jouni Malinen <j (at) w1.fi>
      4  *
      5  * This software may be distributed under the terms of the BSD license.
      6  * See README for more details.
      7  */
      8 
      9 #ifndef CONFIG_H
     10 #define CONFIG_H
     11 
     12 #define DEFAULT_EAPOL_VERSION 1
     13 #ifdef CONFIG_NO_SCAN_PROCESSING
     14 #define DEFAULT_AP_SCAN 2
     15 #else /* CONFIG_NO_SCAN_PROCESSING */
     16 #define DEFAULT_AP_SCAN 1
     17 #endif /* CONFIG_NO_SCAN_PROCESSING */
     18 #define DEFAULT_USER_MPM 1
     19 #define DEFAULT_MAX_PEER_LINKS 99
     20 #define DEFAULT_MESH_MAX_INACTIVITY 300
     21 #define DEFAULT_FAST_REAUTH 1
     22 #define DEFAULT_P2P_GO_INTENT 7
     23 #define DEFAULT_P2P_INTRA_BSS 1
     24 #define DEFAULT_P2P_GO_MAX_INACTIVITY (5 * 60)
     25 #define DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN 0
     26 #define DEFAULT_BSS_MAX_COUNT 200
     27 #define DEFAULT_BSS_EXPIRATION_AGE 180
     28 #define DEFAULT_BSS_EXPIRATION_SCAN_COUNT 2
     29 #define DEFAULT_MAX_NUM_STA 128
     30 #define DEFAULT_ACCESS_NETWORK_TYPE 15
     31 #define DEFAULT_SCAN_CUR_FREQ 0
     32 #define DEFAULT_P2P_SEARCH_DELAY 500
     33 #define DEFAULT_RAND_ADDR_LIFETIME 60
     34 #define DEFAULT_KEY_MGMT_OFFLOAD 1
     35 #define DEFAULT_CERT_IN_CB 1
     36 #define DEFAULT_P2P_GO_CTWINDOW 0
     37 
     38 #include "config_ssid.h"
     39 #include "wps/wps.h"
     40 #include "common/ieee802_11_defs.h"
     41 #include "common/ieee802_11_common.h"
     42 
     43 
     44 struct wpa_cred {
     45 	/**
     46 	 * next - Next credential in the list
     47 	 *
     48 	 * This pointer can be used to iterate over all credentials. The head
     49 	 * of this list is stored in the cred field of struct wpa_config.
     50 	 */
     51 	struct wpa_cred *next;
     52 
     53 	/**
     54 	 * id - Unique id for the credential
     55 	 *
     56 	 * This identifier is used as a unique identifier for each credential
     57 	 * block when using the control interface. Each credential is allocated
     58 	 * an id when it is being created, either when reading the
     59 	 * configuration file or when a new credential is added through the
     60 	 * control interface.
     61 	 */
     62 	int id;
     63 
     64 	/**
     65 	 * temporary - Whether this credential is temporary and not to be saved
     66 	 */
     67 	int temporary;
     68 
     69 	/**
     70 	 * priority - Priority group
     71 	 *
     72 	 * By default, all networks and credentials get the same priority group
     73 	 * (0). This field can be used to give higher priority for credentials
     74 	 * (and similarly in struct wpa_ssid for network blocks) to change the
     75 	 * Interworking automatic networking selection behavior. The matching
     76 	 * network (based on either an enabled network block or a credential)
     77 	 * with the highest priority value will be selected.
     78 	 */
     79 	int priority;
     80 
     81 	/**
     82 	 * pcsc - Use PC/SC and SIM/USIM card
     83 	 */
     84 	int pcsc;
     85 
     86 	/**
     87 	 * realm - Home Realm for Interworking
     88 	 */
     89 	char *realm;
     90 
     91 	/**
     92 	 * username - Username for Interworking network selection
     93 	 */
     94 	char *username;
     95 
     96 	/**
     97 	 * password - Password for Interworking network selection
     98 	 */
     99 	char *password;
    100 
    101 	/**
    102 	 * ext_password - Whether password is a name for external storage
    103 	 */
    104 	int ext_password;
    105 
    106 	/**
    107 	 * ca_cert - CA certificate for Interworking network selection
    108 	 */
    109 	char *ca_cert;
    110 
    111 	/**
    112 	 * client_cert - File path to client certificate file (PEM/DER)
    113 	 *
    114 	 * This field is used with Interworking networking selection for a case
    115 	 * where client certificate/private key is used for authentication
    116 	 * (EAP-TLS). Full path to the file should be used since working
    117 	 * directory may change when wpa_supplicant is run in the background.
    118 	 *
    119 	 * Alternatively, a named configuration blob can be used by setting
    120 	 * this to blob://blob_name.
    121 	 */
    122 	char *client_cert;
    123 
    124 	/**
    125 	 * private_key - File path to client private key file (PEM/DER/PFX)
    126 	 *
    127 	 * When PKCS#12/PFX file (.p12/.pfx) is used, client_cert should be
    128 	 * commented out. Both the private key and certificate will be read
    129 	 * from the PKCS#12 file in this case. Full path to the file should be
    130 	 * used since working directory may change when wpa_supplicant is run
    131 	 * in the background.
    132 	 *
    133 	 * Windows certificate store can be used by leaving client_cert out and
    134 	 * configuring private_key in one of the following formats:
    135 	 *
    136 	 * cert://substring_to_match
    137 	 *
    138 	 * hash://certificate_thumbprint_in_hex
    139 	 *
    140 	 * For example: private_key="hash://63093aa9c47f56ae88334c7b65a4"
    141 	 *
    142 	 * Note that when running wpa_supplicant as an application, the user
    143 	 * certificate store (My user account) is used, whereas computer store
    144 	 * (Computer account) is used when running wpasvc as a service.
    145 	 *
    146 	 * Alternatively, a named configuration blob can be used by setting
    147 	 * this to blob://blob_name.
    148 	 */
    149 	char *private_key;
    150 
    151 	/**
    152 	 * private_key_passwd - Password for private key file
    153 	 */
    154 	char *private_key_passwd;
    155 
    156 	/**
    157 	 * imsi - IMSI in <MCC> | <MNC> | '-' | <MSIN> format
    158 	 */
    159 	char *imsi;
    160 
    161 	/**
    162 	 * milenage - Milenage parameters for SIM/USIM simulator in
    163 	 *	<Ki>:<OPc>:<SQN> format
    164 	 */
    165 	char *milenage;
    166 
    167 	/**
    168 	 * domain_suffix_match - Constraint for server domain name
    169 	 *
    170 	 * If set, this FQDN is used as a suffix match requirement for the AAA
    171 	 * server certificate in SubjectAltName dNSName element(s). If a
    172 	 * matching dNSName is found, this constraint is met. If no dNSName
    173 	 * values are present, this constraint is matched against SubjectName CN
    174 	 * using same suffix match comparison. Suffix match here means that the
    175 	 * host/domain name is compared one label at a time starting from the
    176 	 * top-level domain and all the labels in @domain_suffix_match shall be
    177 	 * included in the certificate. The certificate may include additional
    178 	 * sub-level labels in addition to the required labels.
    179 	 *
    180 	 * For example, domain_suffix_match=example.com would match
    181 	 * test.example.com but would not match test-example.com.
    182 	 */
    183 	char *domain_suffix_match;
    184 
    185 	/**
    186 	 * domain - Home service provider FQDN(s)
    187 	 *
    188 	 * This is used to compare against the Domain Name List to figure out
    189 	 * whether the AP is operated by the Home SP. Multiple domain entries
    190 	 * can be used to configure alternative FQDNs that will be considered
    191 	 * home networks.
    192 	 */
    193 	char **domain;
    194 
    195 	/**
    196 	 * num_domain - Number of FQDNs in the domain array
    197 	 */
    198 	size_t num_domain;
    199 
    200 	/**
    201 	 * roaming_consortium - Roaming Consortium OI
    202 	 *
    203 	 * If roaming_consortium_len is non-zero, this field contains the
    204 	 * Roaming Consortium OI that can be used to determine which access
    205 	 * points support authentication with this credential. This is an
    206 	 * alternative to the use of the realm parameter. When using Roaming
    207 	 * Consortium to match the network, the EAP parameters need to be
    208 	 * pre-configured with the credential since the NAI Realm information
    209 	 * may not be available or fetched.
    210 	 */
    211 	u8 roaming_consortium[15];
    212 
    213 	/**
    214 	 * roaming_consortium_len - Length of roaming_consortium
    215 	 */
    216 	size_t roaming_consortium_len;
    217 
    218 	u8 required_roaming_consortium[15];
    219 	size_t required_roaming_consortium_len;
    220 
    221 	/**
    222 	 * eap_method - EAP method to use
    223 	 *
    224 	 * Pre-configured EAP method to use with this credential or %NULL to
    225 	 * indicate no EAP method is selected, i.e., the method will be
    226 	 * selected automatically based on ANQP information.
    227 	 */
    228 	struct eap_method_type *eap_method;
    229 
    230 	/**
    231 	 * phase1 - Phase 1 (outer authentication) parameters
    232 	 *
    233 	 * Pre-configured EAP parameters or %NULL.
    234 	 */
    235 	char *phase1;
    236 
    237 	/**
    238 	 * phase2 - Phase 2 (inner authentication) parameters
    239 	 *
    240 	 * Pre-configured EAP parameters or %NULL.
    241 	 */
    242 	char *phase2;
    243 
    244 	struct excluded_ssid {
    245 		u8 ssid[SSID_MAX_LEN];
    246 		size_t ssid_len;
    247 	} *excluded_ssid;
    248 	size_t num_excluded_ssid;
    249 
    250 	struct roaming_partner {
    251 		char fqdn[128];
    252 		int exact_match;
    253 		u8 priority;
    254 		char country[3];
    255 	} *roaming_partner;
    256 	size_t num_roaming_partner;
    257 
    258 	int update_identifier;
    259 
    260 	/**
    261 	 * provisioning_sp - FQDN of the SP that provisioned the credential
    262 	 */
    263 	char *provisioning_sp;
    264 
    265 	/**
    266 	 * sp_priority - Credential priority within a provisioning SP
    267 	 *
    268 	 * This is the priority of the credential among all credentials
    269 	 * provisionined by the same SP (i.e., for entries that have identical
    270 	 * provisioning_sp value). The range of this priority is 0-255 with 0
    271 	 * being the highest and 255 the lower priority.
    272 	 */
    273 	int sp_priority;
    274 
    275 	unsigned int min_dl_bandwidth_home;
    276 	unsigned int min_ul_bandwidth_home;
    277 	unsigned int min_dl_bandwidth_roaming;
    278 	unsigned int min_ul_bandwidth_roaming;
    279 
    280 	/**
    281 	 * max_bss_load - Maximum BSS Load Channel Utilization (1..255)
    282 	 * This value is used as the maximum channel utilization for network
    283 	 * selection purposes for home networks. If the AP does not advertise
    284 	 * BSS Load or if the limit would prevent any connection, this
    285 	 * constraint will be ignored.
    286 	 */
    287 	unsigned int max_bss_load;
    288 
    289 	unsigned int num_req_conn_capab;
    290 	u8 *req_conn_capab_proto;
    291 	int **req_conn_capab_port;
    292 
    293 	/**
    294 	 * ocsp - Whether to use/require OCSP to check server certificate
    295 	 *
    296 	 * 0 = do not use OCSP stapling (TLS certificate status extension)
    297 	 * 1 = try to use OCSP stapling, but not require response
    298 	 * 2 = require valid OCSP stapling response
    299 	 */
    300 	int ocsp;
    301 
    302 	/**
    303 	 * sim_num - User selected SIM identifier
    304 	 *
    305 	 * This variable is used for identifying which SIM is used if the system
    306 	 * has more than one.
    307 	 */
    308 	int sim_num;
    309 };
    310 
    311 
    312 #define CFG_CHANGED_DEVICE_NAME BIT(0)
    313 #define CFG_CHANGED_CONFIG_METHODS BIT(1)
    314 #define CFG_CHANGED_DEVICE_TYPE BIT(2)
    315 #define CFG_CHANGED_OS_VERSION BIT(3)
    316 #define CFG_CHANGED_UUID BIT(4)
    317 #define CFG_CHANGED_COUNTRY BIT(5)
    318 #define CFG_CHANGED_SEC_DEVICE_TYPE BIT(6)
    319 #define CFG_CHANGED_P2P_SSID_POSTFIX BIT(7)
    320 #define CFG_CHANGED_WPS_STRING BIT(8)
    321 #define CFG_CHANGED_P2P_INTRA_BSS BIT(9)
    322 #define CFG_CHANGED_VENDOR_EXTENSION BIT(10)
    323 #define CFG_CHANGED_P2P_LISTEN_CHANNEL BIT(11)
    324 #define CFG_CHANGED_P2P_OPER_CHANNEL BIT(12)
    325 #define CFG_CHANGED_P2P_PREF_CHAN BIT(13)
    326 #define CFG_CHANGED_EXT_PW_BACKEND BIT(14)
    327 #define CFG_CHANGED_NFC_PASSWORD_TOKEN BIT(15)
    328 #define CFG_CHANGED_P2P_PASSPHRASE_LEN BIT(16)
    329 
    330 /**
    331  * struct wpa_config - wpa_supplicant configuration data
    332  *
    333  * This data structure is presents the per-interface (radio) configuration
    334  * data. In many cases, there is only one struct wpa_config instance, but if
    335  * more than one network interface is being controlled, one instance is used
    336  * for each.
    337  */
    338 struct wpa_config {
    339 	/**
    340 	 * ssid - Head of the global network list
    341 	 *
    342 	 * This is the head for the list of all the configured networks.
    343 	 */
    344 	struct wpa_ssid *ssid;
    345 
    346 	/**
    347 	 * pssid - Per-priority network lists (in priority order)
    348 	 */
    349 	struct wpa_ssid **pssid;
    350 
    351 	/**
    352 	 * num_prio - Number of different priorities used in the pssid lists
    353 	 *
    354 	 * This indicates how many per-priority network lists are included in
    355 	 * pssid.
    356 	 */
    357 	int num_prio;
    358 
    359 	/**
    360 	 * cred - Head of the credential list
    361 	 *
    362 	 * This is the head for the list of all the configured credentials.
    363 	 */
    364 	struct wpa_cred *cred;
    365 
    366 	/**
    367 	 * eapol_version - IEEE 802.1X/EAPOL version number
    368 	 *
    369 	 * wpa_supplicant is implemented based on IEEE Std 802.1X-2004 which
    370 	 * defines EAPOL version 2. However, there are many APs that do not
    371 	 * handle the new version number correctly (they seem to drop the
    372 	 * frames completely). In order to make wpa_supplicant interoperate
    373 	 * with these APs, the version number is set to 1 by default. This
    374 	 * configuration value can be used to set it to the new version (2).
    375 	 */
    376 	int eapol_version;
    377 
    378 	/**
    379 	 * ap_scan - AP scanning/selection
    380 	 *
    381 	 * By default, wpa_supplicant requests driver to perform AP
    382 	 * scanning and then uses the scan results to select a
    383 	 * suitable AP. Another alternative is to allow the driver to
    384 	 * take care of AP scanning and selection and use
    385 	 * wpa_supplicant just to process EAPOL frames based on IEEE
    386 	 * 802.11 association information from the driver.
    387 	 *
    388 	 * 1: wpa_supplicant initiates scanning and AP selection (default).
    389 	 *
    390 	 * 0: Driver takes care of scanning, AP selection, and IEEE 802.11
    391 	 * association parameters (e.g., WPA IE generation); this mode can
    392 	 * also be used with non-WPA drivers when using IEEE 802.1X mode;
    393 	 * do not try to associate with APs (i.e., external program needs
    394 	 * to control association). This mode must also be used when using
    395 	 * wired Ethernet drivers.
    396 	 *
    397 	 * 2: like 0, but associate with APs using security policy and SSID
    398 	 * (but not BSSID); this can be used, e.g., with ndiswrapper and NDIS
    399 	 * drivers to enable operation with hidden SSIDs and optimized roaming;
    400 	 * in this mode, the network blocks in the configuration are tried
    401 	 * one by one until the driver reports successful association; each
    402 	 * network block should have explicit security policy (i.e., only one
    403 	 * option in the lists) for key_mgmt, pairwise, group, proto variables.
    404 	 */
    405 	int ap_scan;
    406 
    407 	/**
    408 	 * bgscan - Background scan and roaming parameters or %NULL if none
    409 	 *
    410 	 * This is an optional set of parameters for background scanning and
    411 	 * roaming within a network (ESS). For more detailed information see
    412 	 * ssid block documentation.
    413 	 *
    414 	 * The variable defines default bgscan behavior for all BSS station
    415 	 * networks except for those which have their own bgscan configuration.
    416 	 */
    417 	 char *bgscan;
    418 
    419 	/**
    420 	 * disable_scan_offload - Disable automatic offloading of scan requests
    421 	 *
    422 	 * By default, %wpa_supplicant tries to offload scanning if the driver
    423 	 * indicates support for this (sched_scan). This configuration
    424 	 * parameter can be used to disable this offloading mechanism.
    425 	 */
    426 	int disable_scan_offload;
    427 
    428 	/**
    429 	 * ctrl_interface - Parameters for the control interface
    430 	 *
    431 	 * If this is specified, %wpa_supplicant will open a control interface
    432 	 * that is available for external programs to manage %wpa_supplicant.
    433 	 * The meaning of this string depends on which control interface
    434 	 * mechanism is used. For all cases, the existence of this parameter
    435 	 * in configuration is used to determine whether the control interface
    436 	 * is enabled.
    437 	 *
    438 	 * For UNIX domain sockets (default on Linux and BSD): This is a
    439 	 * directory that will be created for UNIX domain sockets for listening
    440 	 * to requests from external programs (CLI/GUI, etc.) for status
    441 	 * information and configuration. The socket file will be named based
    442 	 * on the interface name, so multiple %wpa_supplicant processes can be
    443 	 * run at the same time if more than one interface is used.
    444 	 * /var/run/wpa_supplicant is the recommended directory for sockets and
    445 	 * by default, wpa_cli will use it when trying to connect with
    446 	 * %wpa_supplicant.
    447 	 *
    448 	 * Access control for the control interface can be configured
    449 	 * by setting the directory to allow only members of a group
    450 	 * to use sockets. This way, it is possible to run
    451 	 * %wpa_supplicant as root (since it needs to change network
    452 	 * configuration and open raw sockets) and still allow GUI/CLI
    453 	 * components to be run as non-root users. However, since the
    454 	 * control interface can be used to change the network
    455 	 * configuration, this access needs to be protected in many
    456 	 * cases. By default, %wpa_supplicant is configured to use gid
    457 	 * 0 (root). If you want to allow non-root users to use the
    458 	 * control interface, add a new group and change this value to
    459 	 * match with that group. Add users that should have control
    460 	 * interface access to this group.
    461 	 *
    462 	 * When configuring both the directory and group, use following format:
    463 	 * DIR=/var/run/wpa_supplicant GROUP=wheel
    464 	 * DIR=/var/run/wpa_supplicant GROUP=0
    465 	 * (group can be either group name or gid)
    466 	 *
    467 	 * For UDP connections (default on Windows): The value will be ignored.
    468 	 * This variable is just used to select that the control interface is
    469 	 * to be created. The value can be set to, e.g., udp
    470 	 * (ctrl_interface=udp).
    471 	 *
    472 	 * For Windows Named Pipe: This value can be used to set the security
    473 	 * descriptor for controlling access to the control interface. Security
    474 	 * descriptor can be set using Security Descriptor String Format (see
    475 	 * http://msdn.microsoft.com/library/default.asp?url=/library/en-us/secauthz/security/security_descriptor_string_format.asp).
    476 	 * The descriptor string needs to be prefixed with SDDL=. For example,
    477 	 * ctrl_interface=SDDL=D: would set an empty DACL (which will reject
    478 	 * all connections).
    479 	 */
    480 	char *ctrl_interface;
    481 
    482 	/**
    483 	 * ctrl_interface_group - Control interface group (DEPRECATED)
    484 	 *
    485 	 * This variable is only used for backwards compatibility. Group for
    486 	 * UNIX domain sockets should now be specified using GROUP=group in
    487 	 * ctrl_interface variable.
    488 	 */
    489 	char *ctrl_interface_group;
    490 
    491 	/**
    492 	 * fast_reauth - EAP fast re-authentication (session resumption)
    493 	 *
    494 	 * By default, fast re-authentication is enabled for all EAP methods
    495 	 * that support it. This variable can be used to disable fast
    496 	 * re-authentication (by setting fast_reauth=0). Normally, there is no
    497 	 * need to disable fast re-authentication.
    498 	 */
    499 	int fast_reauth;
    500 
    501 	/**
    502 	 * opensc_engine_path - Path to the OpenSSL engine for opensc
    503 	 *
    504 	 * This is an OpenSSL specific configuration option for loading OpenSC
    505 	 * engine (engine_opensc.so); if %NULL, this engine is not loaded.
    506 	 */
    507 	char *opensc_engine_path;
    508 
    509 	/**
    510 	 * pkcs11_engine_path - Path to the OpenSSL engine for PKCS#11
    511 	 *
    512 	 * This is an OpenSSL specific configuration option for loading PKCS#11
    513 	 * engine (engine_pkcs11.so); if %NULL, this engine is not loaded.
    514 	 */
    515 	char *pkcs11_engine_path;
    516 
    517 	/**
    518 	 * pkcs11_module_path - Path to the OpenSSL OpenSC/PKCS#11 module
    519 	 *
    520 	 * This is an OpenSSL specific configuration option for configuring
    521 	 * path to OpenSC/PKCS#11 engine (opensc-pkcs11.so); if %NULL, this
    522 	 * module is not loaded.
    523 	 */
    524 	char *pkcs11_module_path;
    525 
    526 	/**
    527 	 * openssl_ciphers - OpenSSL cipher string
    528 	 *
    529 	 * This is an OpenSSL specific configuration option for configuring the
    530 	 * default ciphers. If not set, "DEFAULT:!EXP:!LOW" is used as the
    531 	 * default.
    532 	 */
    533 	char *openssl_ciphers;
    534 
    535 	/**
    536 	 * pcsc_reader - PC/SC reader name prefix
    537 	 *
    538 	 * If not %NULL, PC/SC reader with a name that matches this prefix is
    539 	 * initialized for SIM/USIM access. Empty string can be used to match
    540 	 * the first available reader.
    541 	 */
    542 	char *pcsc_reader;
    543 
    544 	/**
    545 	 * pcsc_pin - PIN for USIM, GSM SIM, and smartcards
    546 	 *
    547 	 * This field is used to configure PIN for SIM/USIM for EAP-SIM and
    548 	 * EAP-AKA. If left out, this will be asked through control interface.
    549 	 */
    550 	char *pcsc_pin;
    551 
    552 	/**
    553 	 * external_sim - Use external processing for SIM/USIM operations
    554 	 */
    555 	int external_sim;
    556 
    557 	/**
    558 	 * driver_param - Driver interface parameters
    559 	 *
    560 	 * This text string is passed to the selected driver interface with the
    561 	 * optional struct wpa_driver_ops::set_param() handler. This can be
    562 	 * used to configure driver specific options without having to add new
    563 	 * driver interface functionality.
    564 	 */
    565 	char *driver_param;
    566 
    567 	/**
    568 	 * dot11RSNAConfigPMKLifetime - Maximum lifetime of a PMK
    569 	 *
    570 	 * dot11 MIB variable for the maximum lifetime of a PMK in the PMK
    571 	 * cache (unit: seconds).
    572 	 */
    573 	unsigned int dot11RSNAConfigPMKLifetime;
    574 
    575 	/**
    576 	 * dot11RSNAConfigPMKReauthThreshold - PMK re-authentication threshold
    577 	 *
    578 	 * dot11 MIB variable for the percentage of the PMK lifetime
    579 	 * that should expire before an IEEE 802.1X reauthentication occurs.
    580 	 */
    581 	unsigned int dot11RSNAConfigPMKReauthThreshold;
    582 
    583 	/**
    584 	 * dot11RSNAConfigSATimeout - Security association timeout
    585 	 *
    586 	 * dot11 MIB variable for the maximum time a security association
    587 	 * shall take to set up (unit: seconds).
    588 	 */
    589 	unsigned int dot11RSNAConfigSATimeout;
    590 
    591 	/**
    592 	 * update_config - Is wpa_supplicant allowed to update configuration
    593 	 *
    594 	 * This variable control whether wpa_supplicant is allow to re-write
    595 	 * its configuration with wpa_config_write(). If this is zero,
    596 	 * configuration data is only changed in memory and the external data
    597 	 * is not overriden. If this is non-zero, wpa_supplicant will update
    598 	 * the configuration data (e.g., a file) whenever configuration is
    599 	 * changed. This update may replace the old configuration which can
    600 	 * remove comments from it in case of a text file configuration.
    601 	 */
    602 	int update_config;
    603 
    604 	/**
    605 	 * blobs - Configuration blobs
    606 	 */
    607 	struct wpa_config_blob *blobs;
    608 
    609 	/**
    610 	 * uuid - Universally Unique IDentifier (UUID; see RFC 4122) for WPS
    611 	 */
    612 	u8 uuid[16];
    613 
    614 	/**
    615 	 * device_name - Device Name (WPS)
    616 	 * User-friendly description of device; up to 32 octets encoded in
    617 	 * UTF-8
    618 	 */
    619 	char *device_name;
    620 
    621 	/**
    622 	 * manufacturer - Manufacturer (WPS)
    623 	 * The manufacturer of the device (up to 64 ASCII characters)
    624 	 */
    625 	char *manufacturer;
    626 
    627 	/**
    628 	 * model_name - Model Name (WPS)
    629 	 * Model of the device (up to 32 ASCII characters)
    630 	 */
    631 	char *model_name;
    632 
    633 	/**
    634 	 * model_number - Model Number (WPS)
    635 	 * Additional device description (up to 32 ASCII characters)
    636 	 */
    637 	char *model_number;
    638 
    639 	/**
    640 	 * serial_number - Serial Number (WPS)
    641 	 * Serial number of the device (up to 32 characters)
    642 	 */
    643 	char *serial_number;
    644 
    645 	/**
    646 	 * device_type - Primary Device Type (WPS)
    647 	 */
    648 	u8 device_type[WPS_DEV_TYPE_LEN];
    649 
    650 	/**
    651 	 * config_methods - Config Methods
    652 	 *
    653 	 * This is a space-separated list of supported WPS configuration
    654 	 * methods. For example, "label virtual_display virtual_push_button
    655 	 * keypad".
    656 	 * Available methods: usba ethernet label display ext_nfc_token
    657 	 * int_nfc_token nfc_interface push_button keypad
    658 	 * virtual_display physical_display
    659 	 * virtual_push_button physical_push_button.
    660 	 */
    661 	char *config_methods;
    662 
    663 	/**
    664 	 * os_version - OS Version (WPS)
    665 	 * 4-octet operating system version number
    666 	 */
    667 	u8 os_version[4];
    668 
    669 	/**
    670 	 * country - Country code
    671 	 *
    672 	 * This is the ISO/IEC alpha2 country code for which we are operating
    673 	 * in
    674 	 */
    675 	char country[2];
    676 
    677 	/**
    678 	 * wps_cred_processing - Credential processing
    679 	 *
    680 	 *   0 = process received credentials internally
    681 	 *   1 = do not process received credentials; just pass them over
    682 	 *	ctrl_iface to external program(s)
    683 	 *   2 = process received credentials internally and pass them over
    684 	 *	ctrl_iface to external program(s)
    685 	 */
    686 	int wps_cred_processing;
    687 
    688 #define MAX_SEC_DEVICE_TYPES 5
    689 	/**
    690 	 * sec_device_types - Secondary Device Types (P2P)
    691 	 */
    692 	u8 sec_device_type[MAX_SEC_DEVICE_TYPES][WPS_DEV_TYPE_LEN];
    693 	int num_sec_device_types;
    694 
    695 	int p2p_listen_reg_class;
    696 	int p2p_listen_channel;
    697 	int p2p_oper_reg_class;
    698 	int p2p_oper_channel;
    699 	int p2p_go_intent;
    700 	char *p2p_ssid_postfix;
    701 	int persistent_reconnect;
    702 	int p2p_intra_bss;
    703 	unsigned int num_p2p_pref_chan;
    704 	struct p2p_channel *p2p_pref_chan;
    705 	struct wpa_freq_range_list p2p_no_go_freq;
    706 	int p2p_add_cli_chan;
    707 	int p2p_ignore_shared_freq;
    708 	int p2p_optimize_listen_chan;
    709 
    710 	struct wpabuf *wps_vendor_ext_m1;
    711 
    712 #define MAX_WPS_VENDOR_EXT 10
    713 	/**
    714 	 * wps_vendor_ext - Vendor extension attributes in WPS
    715 	 */
    716 	struct wpabuf *wps_vendor_ext[MAX_WPS_VENDOR_EXT];
    717 
    718 	/**
    719 	 * p2p_group_idle - Maximum idle time in seconds for P2P group
    720 	 *
    721 	 * This value controls how long a P2P group is maintained after there
    722 	 * is no other members in the group. As a GO, this means no associated
    723 	 * stations in the group. As a P2P client, this means no GO seen in
    724 	 * scan results. The maximum idle time is specified in seconds with 0
    725 	 * indicating no time limit, i.e., the P2P group remains in active
    726 	 * state indefinitely until explicitly removed. As a P2P client, the
    727 	 * maximum idle time of P2P_MAX_CLIENT_IDLE seconds is enforced, i.e.,
    728 	 * this parameter is mainly meant for GO use and for P2P client, it can
    729 	 * only be used to reduce the default timeout to smaller value. A
    730 	 * special value -1 can be used to configure immediate removal of the
    731 	 * group for P2P client role on any disconnection after the data
    732 	 * connection has been established.
    733 	 */
    734 	int p2p_group_idle;
    735 
    736 	/**
    737 	 * p2p_passphrase_len - Passphrase length (8..63) for P2P GO
    738 	 *
    739 	 * This parameter controls the length of the random passphrase that is
    740 	 * generated at the GO.
    741 	 */
    742 	unsigned int p2p_passphrase_len;
    743 
    744 	/**
    745 	 * bss_max_count - Maximum number of BSS entries to keep in memory
    746 	 */
    747 	unsigned int bss_max_count;
    748 
    749 	/**
    750 	 * bss_expiration_age - BSS entry age after which it can be expired
    751 	 *
    752 	 * This value controls the time in seconds after which a BSS entry
    753 	 * gets removed if it has not been updated or is not in use.
    754 	 */
    755 	unsigned int bss_expiration_age;
    756 
    757 	/**
    758 	 * bss_expiration_scan_count - Expire BSS after number of scans
    759 	 *
    760 	 * If the BSS entry has not been seen in this many scans, it will be
    761 	 * removed. A value of 1 means that entry is removed after the first
    762 	 * scan in which the BSSID is not seen. Larger values can be used
    763 	 * to avoid BSS entries disappearing if they are not visible in
    764 	 * every scan (e.g., low signal quality or interference).
    765 	 */
    766 	unsigned int bss_expiration_scan_count;
    767 
    768 	/**
    769 	 * filter_ssids - SSID-based scan result filtering
    770 	 *
    771 	 *   0 = do not filter scan results
    772 	 *   1 = only include configured SSIDs in scan results/BSS table
    773 	 */
    774 	int filter_ssids;
    775 
    776 	/**
    777 	 * filter_rssi - RSSI-based scan result filtering
    778 	 *
    779 	 * 0 = do not filter scan results
    780 	 * -n = filter scan results below -n dBm
    781 	 */
    782 	int filter_rssi;
    783 
    784 	/**
    785 	 * max_num_sta - Maximum number of STAs in an AP/P2P GO
    786 	 */
    787 	unsigned int max_num_sta;
    788 
    789 	/**
    790 	 * freq_list - Array of allowed scan frequencies or %NULL for all
    791 	 *
    792 	 * This is an optional zero-terminated array of frequencies in
    793 	 * megahertz (MHz) to allow for narrowing scanning range.
    794 	 */
    795 	int *freq_list;
    796 
    797 	/**
    798 	 * scan_cur_freq - Whether to scan only the current channel
    799 	 *
    800 	 * If true, attempt to scan only the current channel if any other
    801 	 * VIFs on this radio are already associated on a particular channel.
    802 	 */
    803 	int scan_cur_freq;
    804 
    805 	/**
    806 	 * changed_parameters - Bitmap of changed parameters since last update
    807 	 */
    808 	unsigned int changed_parameters;
    809 
    810 	/**
    811 	 * disassoc_low_ack - Disassocicate stations with massive packet loss
    812 	 */
    813 	int disassoc_low_ack;
    814 
    815 	/**
    816 	 * interworking - Whether Interworking (IEEE 802.11u) is enabled
    817 	 */
    818 	int interworking;
    819 
    820 	/**
    821 	 * access_network_type - Access Network Type
    822 	 *
    823 	 * When Interworking is enabled, scans will be limited to APs that
    824 	 * advertise the specified Access Network Type (0..15; with 15
    825 	 * indicating wildcard match).
    826 	 */
    827 	int access_network_type;
    828 
    829 	/**
    830 	 * hessid - Homogenous ESS identifier
    831 	 *
    832 	 * If this is set (any octet is non-zero), scans will be used to
    833 	 * request response only from BSSes belonging to the specified
    834 	 * Homogeneous ESS. This is used only if interworking is enabled.
    835 	 */
    836 	u8 hessid[ETH_ALEN];
    837 
    838 	/**
    839 	 * hs20 - Hotspot 2.0
    840 	 */
    841 	int hs20;
    842 
    843 	/**
    844 	 * pbc_in_m1 - AP mode WPS probing workaround for PBC with Windows 7
    845 	 *
    846 	 * Windows 7 uses incorrect way of figuring out AP's WPS capabilities
    847 	 * by acting as a Registrar and using M1 from the AP. The config
    848 	 * methods attribute in that message is supposed to indicate only the
    849 	 * configuration method supported by the AP in Enrollee role, i.e., to
    850 	 * add an external Registrar. For that case, PBC shall not be used and
    851 	 * as such, the PushButton config method is removed from M1 by default.
    852 	 * If pbc_in_m1=1 is included in the configuration file, the PushButton
    853 	 * config method is left in M1 (if included in config_methods
    854 	 * parameter) to allow Windows 7 to use PBC instead of PIN (e.g., from
    855 	 * a label in the AP).
    856 	 */
    857 	int pbc_in_m1;
    858 
    859 	/**
    860 	 * autoscan - Automatic scan parameters or %NULL if none
    861 	 *
    862 	 * This is an optional set of parameters for automatic scanning
    863 	 * within an interface in following format:
    864 	 * <autoscan module name>:<module parameters>
    865 	 */
    866 	char *autoscan;
    867 
    868 	/**
    869 	 * wps_nfc_pw_from_config - NFC Device Password was read from config
    870 	 *
    871 	 * This parameter can be determined whether the NFC Device Password was
    872 	 * included in the configuration (1) or generated dynamically (0). Only
    873 	 * the former case is re-written back to the configuration file.
    874 	 */
    875 	int wps_nfc_pw_from_config;
    876 
    877 	/**
    878 	 * wps_nfc_dev_pw_id - NFC Device Password ID for password token
    879 	 */
    880 	int wps_nfc_dev_pw_id;
    881 
    882 	/**
    883 	 * wps_nfc_dh_pubkey - NFC DH Public Key for password token
    884 	 */
    885 	struct wpabuf *wps_nfc_dh_pubkey;
    886 
    887 	/**
    888 	 * wps_nfc_dh_privkey - NFC DH Private Key for password token
    889 	 */
    890 	struct wpabuf *wps_nfc_dh_privkey;
    891 
    892 	/**
    893 	 * wps_nfc_dev_pw - NFC Device Password for password token
    894 	 */
    895 	struct wpabuf *wps_nfc_dev_pw;
    896 
    897 	/**
    898 	 * ext_password_backend - External password backend or %NULL if none
    899 	 *
    900 	 * format: <backend name>[:<optional backend parameters>]
    901 	 */
    902 	char *ext_password_backend;
    903 
    904 	/*
    905 	 * p2p_go_max_inactivity - Timeout in seconds to detect STA inactivity
    906 	 *
    907 	 * This timeout value is used in P2P GO mode to clean up
    908 	 * inactive stations.
    909 	 * By default: 300 seconds.
    910 	 */
    911 	int p2p_go_max_inactivity;
    912 
    913 	struct hostapd_wmm_ac_params wmm_ac_params[4];
    914 
    915 	/**
    916 	 * auto_interworking - Whether to use network selection automatically
    917 	 *
    918 	 * 0 = do not automatically go through Interworking network selection
    919 	 *     (i.e., require explicit interworking_select command for this)
    920 	 * 1 = perform Interworking network selection if one or more
    921 	 *     credentials have been configured and scan did not find a
    922 	 *     matching network block
    923 	 */
    924 	int auto_interworking;
    925 
    926 	/**
    927 	 * p2p_go_ht40 - Default mode for HT40 enable when operating as GO.
    928 	 *
    929 	 * This will take effect for p2p_group_add, p2p_connect, and p2p_invite.
    930 	 * Note that regulatory constraints and driver capabilities are
    931 	 * consulted anyway, so setting it to 1 can't do real harm.
    932 	 * By default: 0 (disabled)
    933 	 */
    934 	int p2p_go_ht40;
    935 
    936 	/**
    937 	 * p2p_go_vht - Default mode for VHT enable when operating as GO
    938 	 *
    939 	 * This will take effect for p2p_group_add, p2p_connect, and p2p_invite.
    940 	 * Note that regulatory constraints and driver capabilities are
    941 	 * consulted anyway, so setting it to 1 can't do real harm.
    942 	 * By default: 0 (disabled)
    943 	 */
    944 	int p2p_go_vht;
    945 
    946 	/**
    947 	 * p2p_go_ctwindow - CTWindow to use when operating as GO
    948 	 *
    949 	 * By default: 0 (no CTWindow). Values 0-127 can be used to indicate
    950 	 * the length of the CTWindow in TUs.
    951 	 */
    952 	int p2p_go_ctwindow;
    953 
    954 	/**
    955 	 * p2p_disabled - Whether P2P operations are disabled for this interface
    956 	 */
    957 	int p2p_disabled;
    958 
    959 	/**
    960 	 * p2p_no_group_iface - Whether group interfaces can be used
    961 	 *
    962 	 * By default, wpa_supplicant will create a separate interface for P2P
    963 	 * group operations if the driver supports this. This functionality can
    964 	 * be disabled by setting this parameter to 1. In that case, the same
    965 	 * interface that was used for the P2P management operations is used
    966 	 * also for the group operation.
    967 	 */
    968 	int p2p_no_group_iface;
    969 
    970 	/**
    971 	 * p2p_cli_probe - Enable/disable P2P CLI probe request handling
    972 	 *
    973 	 * If this parameter is set to 1, a connected P2P Client will receive
    974 	 * and handle Probe Request frames. Setting this parameter to 0
    975 	 * disables this option. Default value: 0.
    976 	 *
    977 	 * Note: Setting this property at run time takes effect on the following
    978 	 * interface state transition to/from the WPA_COMPLETED state.
    979 	 */
    980 	int p2p_cli_probe;
    981 
    982 	/**
    983 	 * okc - Whether to enable opportunistic key caching by default
    984 	 *
    985 	 * By default, OKC is disabled unless enabled by the per-network
    986 	 * proactive_key_caching=1 parameter. okc=1 can be used to change this
    987 	 * default behavior.
    988 	 */
    989 	int okc;
    990 
    991 	/**
    992 	 * pmf - Whether to enable/require PMF by default
    993 	 *
    994 	 * By default, PMF is disabled unless enabled by the per-network
    995 	 * ieee80211w=1 or ieee80211w=2 parameter. pmf=1/2 can be used to change
    996 	 * this default behavior.
    997 	 */
    998 	enum mfp_options pmf;
    999 
   1000 	/**
   1001 	 * sae_groups - Preference list of enabled groups for SAE
   1002 	 *
   1003 	 * By default (if this parameter is not set), the mandatory group 19
   1004 	 * (ECC group defined over a 256-bit prime order field) is preferred,
   1005 	 * but other groups are also enabled. If this parameter is set, the
   1006 	 * groups will be tried in the indicated order.
   1007 	 */
   1008 	int *sae_groups;
   1009 
   1010 	/**
   1011 	 * dtim_period - Default DTIM period in Beacon intervals
   1012 	 *
   1013 	 * This parameter can be used to set the default value for network
   1014 	 * blocks that do not specify dtim_period.
   1015 	 */
   1016 	int dtim_period;
   1017 
   1018 	/**
   1019 	 * beacon_int - Default Beacon interval in TU
   1020 	 *
   1021 	 * This parameter can be used to set the default value for network
   1022 	 * blocks that do not specify beacon_int.
   1023 	 */
   1024 	int beacon_int;
   1025 
   1026 	/**
   1027 	 * ap_vendor_elements: Vendor specific elements for Beacon/ProbeResp
   1028 	 *
   1029 	 * This parameter can be used to define additional vendor specific
   1030 	 * elements for Beacon and Probe Response frames in AP/P2P GO mode. The
   1031 	 * format for these element(s) is a hexdump of the raw information
   1032 	 * elements (id+len+payload for one or more elements).
   1033 	 */
   1034 	struct wpabuf *ap_vendor_elements;
   1035 
   1036 	/**
   1037 	 * ignore_old_scan_res - Ignore scan results older than request
   1038 	 *
   1039 	 * The driver may have a cache of scan results that makes it return
   1040 	 * information that is older than our scan trigger. This parameter can
   1041 	 * be used to configure such old information to be ignored instead of
   1042 	 * allowing it to update the internal BSS table.
   1043 	 */
   1044 	int ignore_old_scan_res;
   1045 
   1046 	/**
   1047 	 * sched_scan_interval -  schedule scan interval
   1048 	 */
   1049 	unsigned int sched_scan_interval;
   1050 
   1051 	/**
   1052 	 * tdls_external_control - External control for TDLS setup requests
   1053 	 *
   1054 	 * Enable TDLS mode where external programs are given the control
   1055 	 * to specify the TDLS link to get established to the driver. The
   1056 	 * driver requests the TDLS setup to the supplicant only for the
   1057 	 * specified TDLS peers.
   1058 	 */
   1059 	int tdls_external_control;
   1060 
   1061 	u8 ip_addr_go[4];
   1062 	u8 ip_addr_mask[4];
   1063 	u8 ip_addr_start[4];
   1064 	u8 ip_addr_end[4];
   1065 
   1066 	/**
   1067 	 * osu_dir - OSU provider information directory
   1068 	 *
   1069 	 * If set, allow FETCH_OSU control interface command to be used to fetch
   1070 	 * OSU provider information into all APs and store the results in this
   1071 	 * directory.
   1072 	 */
   1073 	char *osu_dir;
   1074 
   1075 	/**
   1076 	 * wowlan_triggers - Wake-on-WLAN triggers
   1077 	 *
   1078 	 * If set, these wowlan triggers will be configured.
   1079 	 */
   1080 	char *wowlan_triggers;
   1081 
   1082 	/**
   1083 	 * p2p_search_delay - Extra delay between concurrent search iterations
   1084 	 *
   1085 	 * Add extra delay (in milliseconds) between search iterations when
   1086 	 * there is a concurrent operation to make p2p_find friendlier to
   1087 	 * concurrent operations by avoiding it from taking 100% of radio
   1088 	 * resources.
   1089 	 */
   1090 	unsigned int p2p_search_delay;
   1091 
   1092 	/**
   1093 	 * mac_addr - MAC address policy default
   1094 	 *
   1095 	 * 0 = use permanent MAC address
   1096 	 * 1 = use random MAC address for each ESS connection
   1097 	 * 2 = like 1, but maintain OUI (with local admin bit set)
   1098 	 *
   1099 	 * By default, permanent MAC address is used unless policy is changed by
   1100 	 * the per-network mac_addr parameter. Global mac_addr=1 can be used to
   1101 	 * change this default behavior.
   1102 	 */
   1103 	int mac_addr;
   1104 
   1105 	/**
   1106 	 * rand_addr_lifetime - Lifetime of random MAC address in seconds
   1107 	 */
   1108 	unsigned int rand_addr_lifetime;
   1109 
   1110 	/**
   1111 	 * preassoc_mac_addr - Pre-association MAC address policy
   1112 	 *
   1113 	 * 0 = use permanent MAC address
   1114 	 * 1 = use random MAC address
   1115 	 * 2 = like 1, but maintain OUI (with local admin bit set)
   1116 	 */
   1117 	int preassoc_mac_addr;
   1118 
   1119 	/**
   1120 	 * key_mgmt_offload - Use key management offload
   1121 	 *
   1122 	 * Key management offload should be used if the device supports it.
   1123 	 * Key management offload is the capability of a device operating as
   1124 	 * a station to do the exchange necessary to establish temporal keys
   1125 	 * during initial RSN connection, after roaming, or during a PTK
   1126 	 * rekeying operation.
   1127 	 */
   1128 	int key_mgmt_offload;
   1129 
   1130 	/**
   1131 	 * user_mpm - MPM residency
   1132 	 *
   1133 	 * 0: MPM lives in driver.
   1134 	 * 1: wpa_supplicant handles peering and station allocation.
   1135 	 *
   1136 	 * If AMPE or SAE is enabled, the MPM is always in userspace.
   1137 	 */
   1138 	int user_mpm;
   1139 
   1140 	/**
   1141 	 * max_peer_links - Maximum number of peer links
   1142 	 *
   1143 	 * Maximum number of mesh peering currently maintained by the STA.
   1144 	 */
   1145 	int max_peer_links;
   1146 
   1147 	/**
   1148 	 * cert_in_cb - Whether to include a peer certificate dump in events
   1149 	 *
   1150 	 * This controls whether peer certificates for authentication server and
   1151 	 * its certificate chain are included in EAP peer certificate events.
   1152 	 */
   1153 	int cert_in_cb;
   1154 
   1155 	/**
   1156 	 * mesh_max_inactivity - Timeout in seconds to detect STA inactivity
   1157 	 *
   1158 	 * This timeout value is used in mesh STA to clean up inactive stations.
   1159 	 * By default: 300 seconds.
   1160 	 */
   1161 	int mesh_max_inactivity;
   1162 
   1163 	/**
   1164 	 * passive_scan - Whether to force passive scan for network connection
   1165 	 *
   1166 	 * This parameter can be used to force only passive scanning to be used
   1167 	 * for network connection cases. It should be noted that this will slow
   1168 	 * down scan operations and reduce likelihood of finding the AP. In
   1169 	 * addition, some use cases will override this due to functional
   1170 	 * requirements, e.g., for finding an AP that uses hidden SSID
   1171 	 * (scan_ssid=1) or P2P device discovery.
   1172 	 */
   1173 	int passive_scan;
   1174 
   1175 	/**
   1176 	 * reassoc_same_bss_optim - Whether to optimize reassoc-to-same-BSS
   1177 	 */
   1178 	int reassoc_same_bss_optim;
   1179 
   1180 	/**
   1181 	 * wps_priority - Priority for the networks added through WPS
   1182 	 *
   1183 	 * This priority value will be set to each network profile that is added
   1184 	 * by executing the WPS protocol.
   1185 	 */
   1186 	int wps_priority;
   1187 };
   1188 
   1189 
   1190 /* Prototypes for common functions from config.c */
   1191 
   1192 void wpa_config_free(struct wpa_config *ssid);
   1193 void wpa_config_free_ssid(struct wpa_ssid *ssid);
   1194 void wpa_config_foreach_network(struct wpa_config *config,
   1195 				void (*func)(void *, struct wpa_ssid *),
   1196 				void *arg);
   1197 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id);
   1198 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config);
   1199 int wpa_config_remove_network(struct wpa_config *config, int id);
   1200 void wpa_config_set_network_defaults(struct wpa_ssid *ssid);
   1201 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
   1202 		   int line);
   1203 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
   1204 			  const char *value);
   1205 int wpa_config_dump_values(struct wpa_config *config, char *buf,
   1206 			   size_t buflen);
   1207 int wpa_config_get_value(const char *name, struct wpa_config *config,
   1208 			 char *buf, size_t buflen);
   1209 
   1210 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys);
   1211 char * wpa_config_get(struct wpa_ssid *ssid, const char *var);
   1212 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var);
   1213 void wpa_config_update_psk(struct wpa_ssid *ssid);
   1214 int wpa_config_add_prio_network(struct wpa_config *config,
   1215 				struct wpa_ssid *ssid);
   1216 int wpa_config_update_prio_list(struct wpa_config *config);
   1217 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
   1218 						   const char *name);
   1219 void wpa_config_set_blob(struct wpa_config *config,
   1220 			 struct wpa_config_blob *blob);
   1221 void wpa_config_free_blob(struct wpa_config_blob *blob);
   1222 int wpa_config_remove_blob(struct wpa_config *config, const char *name);
   1223 void wpa_config_flush_blobs(struct wpa_config *config);
   1224 
   1225 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id);
   1226 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config);
   1227 int wpa_config_remove_cred(struct wpa_config *config, int id);
   1228 void wpa_config_free_cred(struct wpa_cred *cred);
   1229 int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
   1230 			const char *value, int line);
   1231 char * wpa_config_get_cred_no_key(struct wpa_cred *cred, const char *var);
   1232 
   1233 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
   1234 					   const char *driver_param);
   1235 #ifndef CONFIG_NO_STDOUT_DEBUG
   1236 void wpa_config_debug_dump_networks(struct wpa_config *config);
   1237 #else /* CONFIG_NO_STDOUT_DEBUG */
   1238 #define wpa_config_debug_dump_networks(c) do { } while (0)
   1239 #endif /* CONFIG_NO_STDOUT_DEBUG */
   1240 
   1241 
   1242 /* Prototypes for common functions from config.c */
   1243 int wpa_config_process_global(struct wpa_config *config, char *pos, int line);
   1244 
   1245 
   1246 /* Prototypes for backend specific functions from the selected config_*.c */
   1247 
   1248 /**
   1249  * wpa_config_read - Read and parse configuration database
   1250  * @name: Name of the configuration (e.g., path and file name for the
   1251  * configuration file)
   1252  * @cfgp: Pointer to previously allocated configuration data or %NULL if none
   1253  * Returns: Pointer to allocated configuration data or %NULL on failure
   1254  *
   1255  * This function reads configuration data, parses its contents, and allocates
   1256  * data structures needed for storing configuration information. The allocated
   1257  * data can be freed with wpa_config_free().
   1258  *
   1259  * Each configuration backend needs to implement this function.
   1260  */
   1261 struct wpa_config * wpa_config_read(const char *name, struct wpa_config *cfgp);
   1262 
   1263 /**
   1264  * wpa_config_write - Write or update configuration data
   1265  * @name: Name of the configuration (e.g., path and file name for the
   1266  * configuration file)
   1267  * @config: Configuration data from wpa_config_read()
   1268  * Returns: 0 on success, -1 on failure
   1269  *
   1270  * This function write all configuration data into an external database (e.g.,
   1271  * a text file) in a format that can be read with wpa_config_read(). This can
   1272  * be used to allow wpa_supplicant to update its configuration, e.g., when a
   1273  * new network is added or a password is changed.
   1274  *
   1275  * Each configuration backend needs to implement this function.
   1276  */
   1277 int wpa_config_write(const char *name, struct wpa_config *config);
   1278 
   1279 #endif /* CONFIG_H */
   1280