wpa_supplicant/config.h

   1 /*
   2  * WPA Supplicant / Configuration file structures
   3  * Copyright (c) 2003-2012, Jouni Malinen <j@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_FAST_REAUTH 1
  19 #define DEFAULT_P2P_GO_INTENT 7
  20 #define DEFAULT_P2P_INTRA_BSS 1
  21 #define DEFAULT_BSS_MAX_COUNT 200
  22 #define DEFAULT_BSS_EXPIRATION_AGE 180
  23 #define DEFAULT_BSS_EXPIRATION_SCAN_COUNT 2
  24 #define DEFAULT_MAX_NUM_STA 128
  25 #define DEFAULT_ACCESS_NETWORK_TYPE 15
  26
  27 #include "config_ssid.h"
  28 #include "wps/wps.h"
  29
  30
  31 struct wpa_cred {
  32         /**
  33          * next - Next credential in the list
  34          *
  35          * This pointer can be used to iterate over all credentials. The head
  36          * of this list is stored in the cred field of struct wpa_config.
  37          */
  38         struct wpa_cred *next;
  39
  40         /**
  41          * id - Unique id for the credential
  42          *
  43          * This identifier is used as a unique identifier for each credential
  44          * block when using the control interface. Each credential is allocated
  45          * an id when it is being created, either when reading the
  46          * configuration file or when a new credential is added through the
  47          * control interface.
  48          */
  49         int id;
  50
  51         /**
  52          * priority - Priority group
  53          *
  54          * By default, all networks and credentials get the same priority group
  55          * (0). This field can be used to give higher priority for credentials
  56          * (and similarly in struct wpa_ssid for network blocks) to change the
  57          * Interworking automatic networking selection behavior. The matching
  58          * network (based on either an enabled network block or a credential)
  59          * with the highest priority value will be selected.
  60          */
  61         int priority;
  62
  63         /**
  64          * pcsc - Use PC/SC and SIM/USIM card
  65          */
  66         int pcsc;
  67
  68         /**
  69          * realm - Home Realm for Interworking
  70          */
  71         char *realm;
  72
  73         /**
  74          * username - Username for Interworking network selection
  75          */
  76         char *username;
  77
  78         /**
  79          * password - Password for Interworking network selection
  80          */
  81         char *password;
  82
  83         /**
  84          * ca_cert - CA certificate for Interworking network selection
  85          */
  86         char *ca_cert;
  87
  88         /**
  89          * client_cert - File path to client certificate file (PEM/DER)
  90          *
  91          * This field is used with Interworking networking selection for a case
  92          * where client certificate/private key is used for authentication
  93          * (EAP-TLS). Full path to the file should be used since working
  94          * directory may change when wpa_supplicant is run in the background.
  95          *
  96          * Alternatively, a named configuration blob can be used by setting
  97          * this to blob://blob_name.
  98          */
  99         char *client_cert;
 100
 101         /**
 102          * private_key - File path to client private key file (PEM/DER/PFX)
 103          *
 104          * When PKCS#12/PFX file (.p12/.pfx) is used, client_cert should be
 105          * commented out. Both the private key and certificate will be read
 106          * from the PKCS#12 file in this case. Full path to the file should be
 107          * used since working directory may change when wpa_supplicant is run
 108          * in the background.
 109          *
 110          * Windows certificate store can be used by leaving client_cert out and
 111          * configuring private_key in one of the following formats:
 112          *
 113          * cert://substring_to_match
 114          *
 115          * hash://certificate_thumbprint_in_hex
 116          *
 117          * For example: private_key="hash://63093aa9c47f56ae88334c7b65a4"
 118          *
 119          * Note that when running wpa_supplicant as an application, the user
 120          * certificate store (My user account) is used, whereas computer store
 121          * (Computer account) is used when running wpasvc as a service.
 122          *
 123          * Alternatively, a named configuration blob can be used by setting
 124          * this to blob://blob_name.
 125          */
 126         char *private_key;
 127
 128         /**
 129          * private_key_passwd - Password for private key file
 130          */
 131         char *private_key_passwd;
 132
 133         /**
 134          * imsi - IMSI in <MCC> | <MNC> | '-' | <MSIN> format
 135          */
 136         char *imsi;
 137
 138         /**
 139          * milenage - Milenage parameters for SIM/USIM simulator in
 140          *      <Ki>:<OPc>:<SQN> format
 141          */
 142         char *milenage;
 143
 144         /**
 145          * domain - Home service provider FQDN
 146          *
 147          * This is used to compare against the Domain Name List to figure out
 148          * whether the AP is operated by the Home SP.
 149          */
 150         char *domain;
 151
 152         /**
 153          * eap_method - EAP method to use
 154          *
 155          * Pre-configured EAP method to use with this credential or %NULL to
 156          * indicate no EAP method is selected, i.e., the method will be
 157          * selected automatically based on ANQP information.
 158          */
 159         struct eap_method_type *eap_method;
 160
 161         /**
 162          * phase1 - Phase 1 (outer authentication) parameters
 163          *
 164          * Pre-configured EAP parameters or %NULL.
 165          */
 166         char *phase1;
 167
 168         /**
 169          * phase2 - Phase 2 (inner authentication) parameters
 170          *
 171          * Pre-configured EAP parameters or %NULL.
 172          */
 173         char *phase2;
 174 };
 175
 176
 177 #define CFG_CHANGED_DEVICE_NAME BIT(0)
 178 #define CFG_CHANGED_CONFIG_METHODS BIT(1)
 179 #define CFG_CHANGED_DEVICE_TYPE BIT(2)
 180 #define CFG_CHANGED_OS_VERSION BIT(3)
 181 #define CFG_CHANGED_UUID BIT(4)
 182 #define CFG_CHANGED_COUNTRY BIT(5)
 183 #define CFG_CHANGED_SEC_DEVICE_TYPE BIT(6)
 184 #define CFG_CHANGED_P2P_SSID_POSTFIX BIT(7)
 185 #define CFG_CHANGED_WPS_STRING BIT(8)
 186 #define CFG_CHANGED_P2P_INTRA_BSS BIT(9)
 187 #define CFG_CHANGED_VENDOR_EXTENSION BIT(10)
 188 #define CFG_CHANGED_P2P_LISTEN_CHANNEL BIT(11)
 189 #define CFG_CHANGED_P2P_OPER_CHANNEL BIT(12)
 190 #define CFG_CHANGED_P2P_PREF_CHAN BIT(13)
 191
 192 /**
 193  * struct wpa_config - wpa_supplicant configuration data
 194  *
 195  * This data structure is presents the per-interface (radio) configuration
 196  * data. In many cases, there is only one struct wpa_config instance, but if
 197  * more than one network interface is being controlled, one instance is used
 198  * for each.
 199  */
 200 struct wpa_config {
 201         /**
 202          * ssid - Head of the global network list
 203          *
 204          * This is the head for the list of all the configured networks.
 205          */
 206         struct wpa_ssid *ssid;
 207
 208         /**
 209          * pssid - Per-priority network lists (in priority order)
 210          */
 211         struct wpa_ssid **pssid;
 212
 213         /**
 214          * num_prio - Number of different priorities used in the pssid lists
 215          *
 216          * This indicates how many per-priority network lists are included in
 217          * pssid.
 218          */
 219         int num_prio;
 220
 221         /**
 222          * cred - Head of the credential list
 223          *
 224          * This is the head for the list of all the configured credentials.
 225          */
 226         struct wpa_cred *cred;
 227
 228         /**
 229          * eapol_version - IEEE 802.1X/EAPOL version number
 230          *
 231          * wpa_supplicant is implemented based on IEEE Std 802.1X-2004 which
 232          * defines EAPOL version 2. However, there are many APs that do not
 233          * handle the new version number correctly (they seem to drop the
 234          * frames completely). In order to make wpa_supplicant interoperate
 235          * with these APs, the version number is set to 1 by default. This
 236          * configuration value can be used to set it to the new version (2).
 237          */
 238         int eapol_version;
 239
 240         /**
 241          * ap_scan - AP scanning/selection
 242          *
 243          * By default, wpa_supplicant requests driver to perform AP
 244          * scanning and then uses the scan results to select a
 245          * suitable AP. Another alternative is to allow the driver to
 246          * take care of AP scanning and selection and use
 247          * wpa_supplicant just to process EAPOL frames based on IEEE
 248          * 802.11 association information from the driver.
 249          *
 250          * 1: wpa_supplicant initiates scanning and AP selection (default).
 251          *
 252          * 0: Driver takes care of scanning, AP selection, and IEEE 802.11
 253          * association parameters (e.g., WPA IE generation); this mode can
 254          * also be used with non-WPA drivers when using IEEE 802.1X mode;
 255          * do not try to associate with APs (i.e., external program needs
 256          * to control association). This mode must also be used when using
 257          * wired Ethernet drivers.
 258          *
 259          * 2: like 0, but associate with APs using security policy and SSID
 260          * (but not BSSID); this can be used, e.g., with ndiswrapper and NDIS
 261          * drivers to enable operation with hidden SSIDs and optimized roaming;
 262          * in this mode, the network blocks in the configuration are tried
 263          * one by one until the driver reports successful association; each
 264          * network block should have explicit security policy (i.e., only one
 265          * option in the lists) for key_mgmt, pairwise, group, proto variables.
 266          */
 267         int ap_scan;
 268
 269         /**
 270          * disable_scan_offload - Disable automatic offloading of scan requests
 271          *
 272          * By default, %wpa_supplicant tries to offload scanning if the driver
 273          * indicates support for this (sched_scan). This configuration
 274          * parameter can be used to disable this offloading mechanism.
 275          */
 276         int disable_scan_offload;
 277
 278         /**
 279          * ctrl_interface - Parameters for the control interface
 280          *
 281          * If this is specified, %wpa_supplicant will open a control interface
 282          * that is available for external programs to manage %wpa_supplicant.
 283          * The meaning of this string depends on which control interface
 284          * mechanism is used. For all cases, the existence of this parameter
 285          * in configuration is used to determine whether the control interface
 286          * is enabled.
 287          *
 288          * For UNIX domain sockets (default on Linux and BSD): This is a
 289          * directory that will be created for UNIX domain sockets for listening
 290          * to requests from external programs (CLI/GUI, etc.) for status
 291          * information and configuration. The socket file will be named based
 292          * on the interface name, so multiple %wpa_supplicant processes can be
 293          * run at the same time if more than one interface is used.
 294          * /var/run/wpa_supplicant is the recommended directory for sockets and
 295          * by default, wpa_cli will use it when trying to connect with
 296          * %wpa_supplicant.
 297          *
 298          * Access control for the control interface can be configured
 299          * by setting the directory to allow only members of a group
 300          * to use sockets. This way, it is possible to run
 301          * %wpa_supplicant as root (since it needs to change network
 302          * configuration and open raw sockets) and still allow GUI/CLI
 303          * components to be run as non-root users. However, since the
 304          * control interface can be used to change the network
 305          * configuration, this access needs to be protected in many
 306          * cases. By default, %wpa_supplicant is configured to use gid
 307          * 0 (root). If you want to allow non-root users to use the
 308          * control interface, add a new group and change this value to
 309          * match with that group. Add users that should have control
 310          * interface access to this group.
 311          *
 312          * When configuring both the directory and group, use following format:
 313          * DIR=/var/run/wpa_supplicant GROUP=wheel
 314          * DIR=/var/run/wpa_supplicant GROUP=0
 315          * (group can be either group name or gid)
 316          *
 317          * For UDP connections (default on Windows): The value will be ignored.
 318          * This variable is just used to select that the control interface is
 319          * to be created. The value can be set to, e.g., udp
 320          * (ctrl_interface=udp).
 321          *
 322          * For Windows Named Pipe: This value can be used to set the security
 323          * descriptor for controlling access to the control interface. Security
 324          * descriptor can be set using Security Descriptor String Format (see
 325          * http://msdn.microsoft.com/library/default.asp?url=/library/en-us/secauthz/security/security_descriptor_string_format.asp).
 326          * The descriptor string needs to be prefixed with SDDL=. For example,
 327          * ctrl_interface=SDDL=D: would set an empty DACL (which will reject
 328          * all connections).
 329          */
 330         char *ctrl_interface;
 331
 332         /**
 333          * ctrl_interface_group - Control interface group (DEPRECATED)
 334          *
 335          * This variable is only used for backwards compatibility. Group for
 336          * UNIX domain sockets should now be specified using GROUP=group in
 337          * ctrl_interface variable.
 338          */
 339         char *ctrl_interface_group;
 340
 341         /**
 342          * fast_reauth - EAP fast re-authentication (session resumption)
 343          *
 344          * By default, fast re-authentication is enabled for all EAP methods
 345          * that support it. This variable can be used to disable fast
 346          * re-authentication (by setting fast_reauth=0). Normally, there is no
 347          * need to disable fast re-authentication.
 348          */
 349         int fast_reauth;
 350
 351         /**
 352          * opensc_engine_path - Path to the OpenSSL engine for opensc
 353          *
 354          * This is an OpenSSL specific configuration option for loading OpenSC
 355          * engine (engine_opensc.so); if %NULL, this engine is not loaded.
 356          */
 357         char *opensc_engine_path;
 358
 359         /**
 360          * pkcs11_engine_path - Path to the OpenSSL engine for PKCS#11
 361          *
 362          * This is an OpenSSL specific configuration option for loading PKCS#11
 363          * engine (engine_pkcs11.so); if %NULL, this engine is not loaded.
 364          */
 365         char *pkcs11_engine_path;
 366
 367         /**
 368          * pkcs11_module_path - Path to the OpenSSL OpenSC/PKCS#11 module
 369          *
 370          * This is an OpenSSL specific configuration option for configuring
 371          * path to OpenSC/PKCS#11 engine (opensc-pkcs11.so); if %NULL, this
 372          * module is not loaded.
 373          */
 374         char *pkcs11_module_path;
 375
 376         /**
 377          * pcsc_reader - PC/SC reader name prefix
 378          *
 379          * If not %NULL, PC/SC reader with a name that matches this prefix is
 380          * initialized for SIM/USIM access. Empty string can be used to match
 381          * the first available reader.
 382          */
 383         char *pcsc_reader;
 384
 385         /**
 386          * pcsc_pin - PIN for USIM, GSM SIM, and smartcards
 387          *
 388          * This field is used to configure PIN for SIM/USIM for EAP-SIM and
 389          * EAP-AKA. If left out, this will be asked through control interface.
 390          */
 391         char *pcsc_pin;
 392
 393         /**
 394          * driver_param - Driver interface parameters
 395          *
 396          * This text string is passed to the selected driver interface with the
 397          * optional struct wpa_driver_ops::set_param() handler. This can be
 398          * used to configure driver specific options without having to add new
 399          * driver interface functionality.
 400          */
 401         char *driver_param;
 402
 403         /**
 404          * dot11RSNAConfigPMKLifetime - Maximum lifetime of a PMK
 405          *
 406          * dot11 MIB variable for the maximum lifetime of a PMK in the PMK
 407          * cache (unit: seconds).
 408          */
 409         unsigned int dot11RSNAConfigPMKLifetime;
 410
 411         /**
 412          * dot11RSNAConfigPMKReauthThreshold - PMK re-authentication threshold
 413          *
 414          * dot11 MIB variable for the percentage of the PMK lifetime
 415          * that should expire before an IEEE 802.1X reauthentication occurs.
 416          */
 417         unsigned int dot11RSNAConfigPMKReauthThreshold;
 418
 419         /**
 420          * dot11RSNAConfigSATimeout - Security association timeout
 421          *
 422          * dot11 MIB variable for the maximum time a security association
 423          * shall take to set up (unit: seconds).
 424          */
 425         unsigned int dot11RSNAConfigSATimeout;
 426
 427         /**
 428          * update_config - Is wpa_supplicant allowed to update configuration
 429          *
 430          * This variable control whether wpa_supplicant is allow to re-write
 431          * its configuration with wpa_config_write(). If this is zero,
 432          * configuration data is only changed in memory and the external data
 433          * is not overriden. If this is non-zero, wpa_supplicant will update
 434          * the configuration data (e.g., a file) whenever configuration is
 435          * changed. This update may replace the old configuration which can
 436          * remove comments from it in case of a text file configuration.
 437          */
 438         int update_config;
 439
 440         /**
 441          * blobs - Configuration blobs
 442          */
 443         struct wpa_config_blob *blobs;
 444
 445         /**
 446          * uuid - Universally Unique IDentifier (UUID; see RFC 4122) for WPS
 447          */
 448         u8 uuid[16];
 449
 450         /**
 451          * device_name - Device Name (WPS)
 452          * User-friendly description of device; up to 32 octets encoded in
 453          * UTF-8
 454          */
 455         char *device_name;
 456
 457         /**
 458          * manufacturer - Manufacturer (WPS)
 459          * The manufacturer of the device (up to 64 ASCII characters)
 460          */
 461         char *manufacturer;
 462
 463         /**
 464          * model_name - Model Name (WPS)
 465          * Model of the device (up to 32 ASCII characters)
 466          */
 467         char *model_name;
 468
 469         /**
 470          * model_number - Model Number (WPS)
 471          * Additional device description (up to 32 ASCII characters)
 472          */
 473         char *model_number;
 474
 475         /**
 476          * serial_number - Serial Number (WPS)
 477          * Serial number of the device (up to 32 characters)
 478          */
 479         char *serial_number;
 480
 481         /**
 482          * device_type - Primary Device Type (WPS)
 483          */
 484         u8 device_type[WPS_DEV_TYPE_LEN];
 485
 486         /**
 487          * config_methods - Config Methods
 488          *
 489          * This is a space-separated list of supported WPS configuration
 490          * methods. For example, "label virtual_display virtual_push_button
 491          * keypad".
 492          * Available methods: usba ethernet label display ext_nfc_token
 493          * int_nfc_token nfc_interface push_button keypad
 494          * virtual_display physical_display
 495          * virtual_push_button physical_push_button.
 496          */
 497         char *config_methods;
 498
 499         /**
 500          * os_version - OS Version (WPS)
 501          * 4-octet operating system version number
 502          */
 503         u8 os_version[4];
 504
 505         /**
 506          * country - Country code
 507          *
 508          * This is the ISO/IEC alpha2 country code for which we are operating
 509          * in
 510          */
 511         char country[2];
 512
 513         /**
 514          * wps_cred_processing - Credential processing
 515          *
 516          *   0 = process received credentials internally
 517          *   1 = do not process received credentials; just pass them over
 518          *      ctrl_iface to external program(s)
 519          *   2 = process received credentials internally and pass them over
 520          *      ctrl_iface to external program(s)
 521          */
 522         int wps_cred_processing;
 523
 524 #define MAX_SEC_DEVICE_TYPES 5
 525         /**
 526          * sec_device_types - Secondary Device Types (P2P)
 527          */
 528         u8 sec_device_type[MAX_SEC_DEVICE_TYPES][WPS_DEV_TYPE_LEN];
 529         int num_sec_device_types;
 530
 531         int p2p_listen_reg_class;
 532         int p2p_listen_channel;
 533         int p2p_oper_reg_class;
 534         int p2p_oper_channel;
 535         int p2p_go_intent;
 536         char *p2p_ssid_postfix;
 537         int persistent_reconnect;
 538         int p2p_intra_bss;
 539         unsigned int num_p2p_pref_chan;
 540         struct p2p_channel *p2p_pref_chan;
 541
 542         struct wpabuf *wps_vendor_ext_m1;
 543
 544 #define MAX_WPS_VENDOR_EXT 10
 545         /**
 546          * wps_vendor_ext - Vendor extension attributes in WPS
 547          */
 548         struct wpabuf *wps_vendor_ext[MAX_WPS_VENDOR_EXT];
 549
 550         /**
 551          * p2p_group_idle - Maximum idle time in seconds for P2P group
 552          *
 553          * This value controls how long a P2P group is maintained after there
 554          * is no other members in the group. As a GO, this means no associated
 555          * stations in the group. As a P2P client, this means no GO seen in
 556          * scan results. The maximum idle time is specified in seconds with 0
 557          * indicating no time limit, i.e., the P2P group remains in active
 558          * state indefinitely until explicitly removed. As a P2P client, the
 559          * maximum idle time of P2P_MAX_CLIENT_IDLE seconds is enforced, i.e.,
 560          * this parameter is mainly meant for GO use and for P2P client, it can
 561          * only be used to reduce the default timeout to smaller value. A
 562          * special value -1 can be used to configure immediate removal of the
 563          * group for P2P client role on any disconnection after the data
 564          * connection has been established.
 565          */
 566         int p2p_group_idle;
 567
 568         /**
 569          * bss_max_count - Maximum number of BSS entries to keep in memory
 570          */
 571         unsigned int bss_max_count;
 572
 573         /**
 574          * bss_expiration_age - BSS entry age after which it can be expired
 575          *
 576          * This value controls the time in seconds after which a BSS entry
 577          * gets removed if it has not been updated or is not in use.
 578          */
 579         unsigned int bss_expiration_age;
 580
 581         /**
 582          * bss_expiration_scan_count - Expire BSS after number of scans
 583          *
 584          * If the BSS entry has not been seen in this many scans, it will be
 585          * removed. A value of 1 means that entry is removed after the first
 586          * scan in which the BSSID is not seen. Larger values can be used
 587          * to avoid BSS entries disappearing if they are not visible in
 588          * every scan (e.g., low signal quality or interference).
 589          */
 590         unsigned int bss_expiration_scan_count;
 591
 592         /**
 593          * filter_ssids - SSID-based scan result filtering
 594          *
 595          *   0 = do not filter scan results
 596          *   1 = only include configured SSIDs in scan results/BSS table
 597          */
 598         int filter_ssids;
 599
 600         /**
 601          * filter_rssi - RSSI-based scan result filtering
 602          *
 603          * 0 = do not filter scan results
 604          * -n = filter scan results below -n dBm
 605          */
 606         int filter_rssi;
 607
 608         /**
 609          * max_num_sta - Maximum number of STAs in an AP/P2P GO
 610          */
 611         unsigned int max_num_sta;
 612
 613         /**
 614          * changed_parameters - Bitmap of changed parameters since last update
 615          */
 616         unsigned int changed_parameters;
 617
 618         /**
 619          * disassoc_low_ack - Disassocicate stations with massive packet loss
 620          */
 621         int disassoc_low_ack;
 622
 623         /**
 624          * interworking - Whether Interworking (IEEE 802.11u) is enabled
 625          */
 626         int interworking;
 627
 628         /**
 629          * access_network_type - Access Network Type
 630          *
 631          * When Interworking is enabled, scans will be limited to APs that
 632          * advertise the specified Access Network Type (0..15; with 15
 633          * indicating wildcard match).
 634          */
 635         int access_network_type;
 636
 637         /**
 638          * hessid - Homogenous ESS identifier
 639          *
 640          * If this is set (any octet is non-zero), scans will be used to
 641          * request response only from BSSes belonging to the specified
 642          * Homogeneous ESS. This is used only if interworking is enabled.
 643          */
 644         u8 hessid[ETH_ALEN];
 645
 646         /**
 647          * hs20 - Hotspot 2.0
 648          */
 649         int hs20;
 650
 651         /**
 652          * pbc_in_m1 - AP mode WPS probing workaround for PBC with Windows 7
 653          *
 654          * Windows 7 uses incorrect way of figuring out AP's WPS capabilities
 655          * by acting as a Registrar and using M1 from the AP. The config
 656          * methods attribute in that message is supposed to indicate only the
 657          * configuration method supported by the AP in Enrollee role, i.e., to
 658          * add an external Registrar. For that case, PBC shall not be used and
 659          * as such, the PushButton config method is removed from M1 by default.
 660          * If pbc_in_m1=1 is included in the configuration file, the PushButton
 661          * config method is left in M1 (if included in config_methods
 662          * parameter) to allow Windows 7 to use PBC instead of PIN (e.g., from
 663          * a label in the AP).
 664          */
 665         int pbc_in_m1;
 666
 667         /**
 668          * autoscan - Automatic scan parameters or %NULL if none
 669          *
 670          * This is an optional set of parameters for automatic scanning
 671          * within an interface in following format:
 672          * <autoscan module name>:<module parameters>
 673          */
 674         char *autoscan;
 675
 676         /**
 677          * wps_nfc_dev_pw_id - NFC Device Password ID for password token
 678          */
 679         int wps_nfc_dev_pw_id;
 680
 681         /**
 682          * wps_nfc_dh_pubkey - NFC DH Public Key for password token
 683          */
 684         struct wpabuf *wps_nfc_dh_pubkey;
 685
 686         /**
 687          * wps_nfc_dh_pubkey - NFC DH Private Key for password token
 688          */
 689         struct wpabuf *wps_nfc_dh_privkey;
 690
 691         /**
 692          * wps_nfc_dh_pubkey - NFC Device Password for password token
 693          */
 694         struct wpabuf *wps_nfc_dev_pw;
 695 };
 696
 697
 698 /* Prototypes for common functions from config.c */
 699
 700 void wpa_config_free(struct wpa_config *ssid);
 701 void wpa_config_free_ssid(struct wpa_ssid *ssid);
 702 void wpa_config_foreach_network(struct wpa_config *config,
 703                                 void (*func)(void *, struct wpa_ssid *),
 704                                 void *arg);
 705 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id);
 706 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config);
 707 int wpa_config_remove_network(struct wpa_config *config, int id);
 708 void wpa_config_set_network_defaults(struct wpa_ssid *ssid);
 709 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
 710                    int line);
 711 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
 712                           const char *value);
 713 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys);
 714 char * wpa_config_get(struct wpa_ssid *ssid, const char *var);
 715 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var);
 716 void wpa_config_update_psk(struct wpa_ssid *ssid);
 717 int wpa_config_add_prio_network(struct wpa_config *config,
 718                                 struct wpa_ssid *ssid);
 719 int wpa_config_update_prio_list(struct wpa_config *config);
 720 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
 721                                                    const char *name);
 722 void wpa_config_set_blob(struct wpa_config *config,
 723                          struct wpa_config_blob *blob);
 724 void wpa_config_free_blob(struct wpa_config_blob *blob);
 725 int wpa_config_remove_blob(struct wpa_config *config, const char *name);
 726
 727 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id);
 728 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config);
 729 int wpa_config_remove_cred(struct wpa_config *config, int id);
 730 void wpa_config_free_cred(struct wpa_cred *cred);
 731 int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
 732                         const char *value, int line);
 733
 734 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
 735                                            const char *driver_param);
 736 #ifndef CONFIG_NO_STDOUT_DEBUG
 737 void wpa_config_debug_dump_networks(struct wpa_config *config);
 738 #else /* CONFIG_NO_STDOUT_DEBUG */
 739 #define wpa_config_debug_dump_networks(c) do { } while (0)
 740 #endif /* CONFIG_NO_STDOUT_DEBUG */
 741
 742
 743 /* Prototypes for common functions from config.c */
 744 int wpa_config_process_global(struct wpa_config *config, char *pos, int line);
 745
 746
 747 /* Prototypes for backend specific functions from the selected config_*.c */
 748
 749 /**
 750  * wpa_config_read - Read and parse configuration database
 751  * @name: Name of the configuration (e.g., path and file name for the
 752  * configuration file)
 753  * Returns: Pointer to allocated configuration data or %NULL on failure
 754  *
 755  * This function reads configuration data, parses its contents, and allocates
 756  * data structures needed for storing configuration information. The allocated
 757  * data can be freed with wpa_config_free().
 758  *
 759  * Each configuration backend needs to implement this function.
 760  */
 761 struct wpa_config * wpa_config_read(const char *name);
 762
 763 /**
 764  * wpa_config_write - Write or update configuration data
 765  * @name: Name of the configuration (e.g., path and file name for the
 766  * configuration file)
 767  * @config: Configuration data from wpa_config_read()
 768  * Returns: 0 on success, -1 on failure
 769  *
 770  * This function write all configuration data into an external database (e.g.,
 771  * a text file) in a format that can be read with wpa_config_read(). This can
 772  * be used to allow wpa_supplicant to update its configuration, e.g., when a
 773  * new network is added or a password is changed.
 774  *
 775  * Each configuration backend needs to implement this function.
 776  */
 777 int wpa_config_write(const char *name, struct wpa_config *config);
 778
 779 #endif /* CONFIG_H */