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_USER_MPM 1 19 #define DEFAULT_MAX_PEER_LINKS 99 20 #define DEFAULT_MESH_MAX_INACTIVITY 300 21 /* 22 * The default dot11RSNASAERetransPeriod is defined as 40 ms in the standard, 23 * but use 1000 ms in practice to avoid issues on low power CPUs. 24 */ 25 #define DEFAULT_DOT11_RSNA_SAE_RETRANS_PERIOD 1000 26 #define DEFAULT_FAST_REAUTH 1 27 #define DEFAULT_P2P_GO_INTENT 7 28 #define DEFAULT_P2P_INTRA_BSS 1 29 #define DEFAULT_P2P_GO_MAX_INACTIVITY (5 * 60) 30 #define DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN 0 31 #define DEFAULT_BSS_MAX_COUNT 200 32 #define DEFAULT_BSS_EXPIRATION_AGE 180 33 #define DEFAULT_BSS_EXPIRATION_SCAN_COUNT 2 34 #define DEFAULT_MAX_NUM_STA 128 35 #define DEFAULT_ACCESS_NETWORK_TYPE 15 36 #define DEFAULT_SCAN_CUR_FREQ 0 37 #define DEFAULT_P2P_SEARCH_DELAY 500 38 #define DEFAULT_RAND_ADDR_LIFETIME 60 39 #define DEFAULT_KEY_MGMT_OFFLOAD 1 40 #define DEFAULT_CERT_IN_CB 1 41 #define DEFAULT_P2P_GO_CTWINDOW 0 42 #define DEFAULT_WPA_RSC_RELAXATION 1 43 #define DEFAULT_MBO_CELL_CAPA MBO_CELL_CAPA_NOT_SUPPORTED 44 45 #include "config_ssid.h" 46 #include "wps/wps.h" 47 #include "common/ieee802_11_defs.h" 48 #include "common/ieee802_11_common.h" 49 50 51 struct wpa_cred { 52 /** 53 * next - Next credential in the list 54 * 55 * This pointer can be used to iterate over all credentials. The head 56 * of this list is stored in the cred field of struct wpa_config. 57 */ 58 struct wpa_cred *next; 59 60 /** 61 * id - Unique id for the credential 62 * 63 * This identifier is used as a unique identifier for each credential 64 * block when using the control interface. Each credential is allocated 65 * an id when it is being created, either when reading the 66 * configuration file or when a new credential is added through the 67 * control interface. 68 */ 69 int id; 70 71 /** 72 * temporary - Whether this credential is temporary and not to be saved 73 */ 74 int temporary; 75 76 /** 77 * priority - Priority group 78 * 79 * By default, all networks and credentials get the same priority group 80 * (0). This field can be used to give higher priority for credentials 81 * (and similarly in struct wpa_ssid for network blocks) to change the 82 * Interworking automatic networking selection behavior. The matching 83 * network (based on either an enabled network block or a credential) 84 * with the highest priority value will be selected. 85 */ 86 int priority; 87 88 /** 89 * pcsc - Use PC/SC and SIM/USIM card 90 */ 91 int pcsc; 92 93 /** 94 * realm - Home Realm for Interworking 95 */ 96 char *realm; 97 98 /** 99 * username - Username for Interworking network selection 100 */ 101 char *username; 102 103 /** 104 * password - Password for Interworking network selection 105 */ 106 char *password; 107 108 /** 109 * ext_password - Whether password is a name for external storage 110 */ 111 int ext_password; 112 113 /** 114 * ca_cert - CA certificate for Interworking network selection 115 */ 116 char *ca_cert; 117 118 /** 119 * client_cert - File path to client certificate file (PEM/DER) 120 * 121 * This field is used with Interworking networking selection for a case 122 * where client certificate/private key is used for authentication 123 * (EAP-TLS). Full path to the file should be used since working 124 * directory may change when wpa_supplicant is run in the background. 125 * 126 * Alternatively, a named configuration blob can be used by setting 127 * this to blob://blob_name. 128 */ 129 char *client_cert; 130 131 /** 132 * private_key - File path to client private key file (PEM/DER/PFX) 133 * 134 * When PKCS#12/PFX file (.p12/.pfx) is used, client_cert should be 135 * commented out. Both the private key and certificate will be read 136 * from the PKCS#12 file in this case. Full path to the file should be 137 * used since working directory may change when wpa_supplicant is run 138 * in the background. 139 * 140 * Windows certificate store can be used by leaving client_cert out and 141 * configuring private_key in one of the following formats: 142 * 143 * cert://substring_to_match 144 * 145 * hash://certificate_thumbprint_in_hex 146 * 147 * For example: private_key="hash://63093aa9c47f56ae88334c7b65a4" 148 * 149 * Note that when running wpa_supplicant as an application, the user 150 * certificate store (My user account) is used, whereas computer store 151 * (Computer account) is used when running wpasvc as a service. 152 * 153 * Alternatively, a named configuration blob can be used by setting 154 * this to blob://blob_name. 155 */ 156 char *private_key; 157 158 /** 159 * private_key_passwd - Password for private key file 160 */ 161 char *private_key_passwd; 162 163 /** 164 * imsi - IMSI in <MCC> | <MNC> | '-' | <MSIN> format 165 */ 166 char *imsi; 167 168 /** 169 * milenage - Milenage parameters for SIM/USIM simulator in 170 * <Ki>:<OPc>:<SQN> format 171 */ 172 char *milenage; 173 174 /** 175 * domain_suffix_match - Constraint for server domain name 176 * 177 * If set, this FQDN is used as a suffix match requirement for the AAA 178 * server certificate in SubjectAltName dNSName element(s). If a 179 * matching dNSName is found, this constraint is met. If no dNSName 180 * values are present, this constraint is matched against SubjectName CN 181 * using same suffix match comparison. Suffix match here means that the 182 * host/domain name is compared one label at a time starting from the 183 * top-level domain and all the labels in @domain_suffix_match shall be 184 * included in the certificate. The certificate may include additional 185 * sub-level labels in addition to the required labels. 186 * 187 * For example, domain_suffix_match=example.com would match 188 * test.example.com but would not match test-example.com. 189 */ 190 char *domain_suffix_match; 191 192 /** 193 * domain - Home service provider FQDN(s) 194 * 195 * This is used to compare against the Domain Name List to figure out 196 * whether the AP is operated by the Home SP. Multiple domain entries 197 * can be used to configure alternative FQDNs that will be considered 198 * home networks. 199 */ 200 char **domain; 201 202 /** 203 * num_domain - Number of FQDNs in the domain array 204 */ 205 size_t num_domain; 206 207 /** 208 * roaming_consortium - Roaming Consortium OI 209 * 210 * If roaming_consortium_len is non-zero, this field contains the 211 * Roaming Consortium OI that can be used to determine which access 212 * points support authentication with this credential. This is an 213 * alternative to the use of the realm parameter. When using Roaming 214 * Consortium to match the network, the EAP parameters need to be 215 * pre-configured with the credential since the NAI Realm information 216 * may not be available or fetched. 217 */ 218 u8 roaming_consortium[15]; 219 220 /** 221 * roaming_consortium_len - Length of roaming_consortium 222 */ 223 size_t roaming_consortium_len; 224 225 u8 required_roaming_consortium[15]; 226 size_t required_roaming_consortium_len; 227 228 /** 229 * eap_method - EAP method to use 230 * 231 * Pre-configured EAP method to use with this credential or %NULL to 232 * indicate no EAP method is selected, i.e., the method will be 233 * selected automatically based on ANQP information. 234 */ 235 struct eap_method_type *eap_method; 236 237 /** 238 * phase1 - Phase 1 (outer authentication) parameters 239 * 240 * Pre-configured EAP parameters or %NULL. 241 */ 242 char *phase1; 243 244 /** 245 * phase2 - Phase 2 (inner authentication) parameters 246 * 247 * Pre-configured EAP parameters or %NULL. 248 */ 249 char *phase2; 250 251 struct excluded_ssid { 252 u8 ssid[SSID_MAX_LEN]; 253 size_t ssid_len; 254 } *excluded_ssid; 255 size_t num_excluded_ssid; 256 257 struct roaming_partner { 258 char fqdn[128]; 259 int exact_match; 260 u8 priority; 261 char country[3]; 262 } *roaming_partner; 263 size_t num_roaming_partner; 264 265 int update_identifier; 266 267 /** 268 * provisioning_sp - FQDN of the SP that provisioned the credential 269 */ 270 char *provisioning_sp; 271 272 /** 273 * sp_priority - Credential priority within a provisioning SP 274 * 275 * This is the priority of the credential among all credentials 276 * provisionined by the same SP (i.e., for entries that have identical 277 * provisioning_sp value). The range of this priority is 0-255 with 0 278 * being the highest and 255 the lower priority. 279 */ 280 int sp_priority; 281 282 unsigned int min_dl_bandwidth_home; 283 unsigned int min_ul_bandwidth_home; 284 unsigned int min_dl_bandwidth_roaming; 285 unsigned int min_ul_bandwidth_roaming; 286 287 /** 288 * max_bss_load - Maximum BSS Load Channel Utilization (1..255) 289 * This value is used as the maximum channel utilization for network 290 * selection purposes for home networks. If the AP does not advertise 291 * BSS Load or if the limit would prevent any connection, this 292 * constraint will be ignored. 293 */ 294 unsigned int max_bss_load; 295 296 unsigned int num_req_conn_capab; 297 u8 *req_conn_capab_proto; 298 int **req_conn_capab_port; 299 300 /** 301 * ocsp - Whether to use/require OCSP to check server certificate 302 * 303 * 0 = do not use OCSP stapling (TLS certificate status extension) 304 * 1 = try to use OCSP stapling, but not require response 305 * 2 = require valid OCSP stapling response 306 */ 307 int ocsp; 308 309 /** 310 * sim_num - User selected SIM identifier 311 * 312 * This variable is used for identifying which SIM is used if the system 313 * has more than one. 314 */ 315 int sim_num; 316 }; 317 318 319 #define CFG_CHANGED_DEVICE_NAME BIT(0) 320 #define CFG_CHANGED_CONFIG_METHODS BIT(1) 321 #define CFG_CHANGED_DEVICE_TYPE BIT(2) 322 #define CFG_CHANGED_OS_VERSION BIT(3) 323 #define CFG_CHANGED_UUID BIT(4) 324 #define CFG_CHANGED_COUNTRY BIT(5) 325 #define CFG_CHANGED_SEC_DEVICE_TYPE BIT(6) 326 #define CFG_CHANGED_P2P_SSID_POSTFIX BIT(7) 327 #define CFG_CHANGED_WPS_STRING BIT(8) 328 #define CFG_CHANGED_P2P_INTRA_BSS BIT(9) 329 #define CFG_CHANGED_VENDOR_EXTENSION BIT(10) 330 #define CFG_CHANGED_P2P_LISTEN_CHANNEL BIT(11) 331 #define CFG_CHANGED_P2P_OPER_CHANNEL BIT(12) 332 #define CFG_CHANGED_P2P_PREF_CHAN BIT(13) 333 #define CFG_CHANGED_EXT_PW_BACKEND BIT(14) 334 #define CFG_CHANGED_NFC_PASSWORD_TOKEN BIT(15) 335 #define CFG_CHANGED_P2P_PASSPHRASE_LEN BIT(16) 336 #define CFG_CHANGED_SCHED_SCAN_PLANS BIT(17) 337 338 /** 339 * struct wpa_config - wpa_supplicant configuration data 340 * 341 * This data structure is presents the per-interface (radio) configuration 342 * data. In many cases, there is only one struct wpa_config instance, but if 343 * more than one network interface is being controlled, one instance is used 344 * for each. 345 */ 346 struct wpa_config { 347 /** 348 * ssid - Head of the global network list 349 * 350 * This is the head for the list of all the configured networks. 351 */ 352 struct wpa_ssid *ssid; 353 354 /** 355 * pssid - Per-priority network lists (in priority order) 356 */ 357 struct wpa_ssid **pssid; 358 359 /** 360 * num_prio - Number of different priorities used in the pssid lists 361 * 362 * This indicates how many per-priority network lists are included in 363 * pssid. 364 */ 365 int num_prio; 366 367 /** 368 * cred - Head of the credential list 369 * 370 * This is the head for the list of all the configured credentials. 371 */ 372 struct wpa_cred *cred; 373 374 /** 375 * eapol_version - IEEE 802.1X/EAPOL version number 376 * 377 * wpa_supplicant is implemented based on IEEE Std 802.1X-2004 which 378 * defines EAPOL version 2. However, there are many APs that do not 379 * handle the new version number correctly (they seem to drop the 380 * frames completely). In order to make wpa_supplicant interoperate 381 * with these APs, the version number is set to 1 by default. This 382 * configuration value can be used to set it to the new version (2). 383 */ 384 int eapol_version; 385 386 /** 387 * ap_scan - AP scanning/selection 388 * 389 * By default, wpa_supplicant requests driver to perform AP 390 * scanning and then uses the scan results to select a 391 * suitable AP. Another alternative is to allow the driver to 392 * take care of AP scanning and selection and use 393 * wpa_supplicant just to process EAPOL frames based on IEEE 394 * 802.11 association information from the driver. 395 * 396 * 1: wpa_supplicant initiates scanning and AP selection (default). 397 * 398 * 0: Driver takes care of scanning, AP selection, and IEEE 802.11 399 * association parameters (e.g., WPA IE generation); this mode can 400 * also be used with non-WPA drivers when using IEEE 802.1X mode; 401 * do not try to associate with APs (i.e., external program needs 402 * to control association). This mode must also be used when using 403 * wired Ethernet drivers. 404 * 405 * 2: like 0, but associate with APs using security policy and SSID 406 * (but not BSSID); this can be used, e.g., with ndiswrapper and NDIS 407 * drivers to enable operation with hidden SSIDs and optimized roaming; 408 * in this mode, the network blocks in the configuration are tried 409 * one by one until the driver reports successful association; each 410 * network block should have explicit security policy (i.e., only one 411 * option in the lists) for key_mgmt, pairwise, group, proto variables. 412 * 413 * Note: ap_scan=2 should not be used with the nl80211 driver interface 414 * (the current Linux interface). ap_scan=1 is optimized work working 415 * with nl80211. For finding networks using hidden SSID, scan_ssid=1 in 416 * the network block can be used with nl80211. 417 */ 418 int ap_scan; 419 420 /** 421 * bgscan - Background scan and roaming parameters or %NULL if none 422 * 423 * This is an optional set of parameters for background scanning and 424 * roaming within a network (ESS). For more detailed information see 425 * ssid block documentation. 426 * 427 * The variable defines default bgscan behavior for all BSS station 428 * networks except for those which have their own bgscan configuration. 429 */ 430 char *bgscan; 431 432 /** 433 * disable_scan_offload - Disable automatic offloading of scan requests 434 * 435 * By default, %wpa_supplicant tries to offload scanning if the driver 436 * indicates support for this (sched_scan). This configuration 437 * parameter can be used to disable this offloading mechanism. 438 */ 439 int disable_scan_offload; 440 441 /** 442 * ctrl_interface - Parameters for the control interface 443 * 444 * If this is specified, %wpa_supplicant will open a control interface 445 * that is available for external programs to manage %wpa_supplicant. 446 * The meaning of this string depends on which control interface 447 * mechanism is used. For all cases, the existence of this parameter 448 * in configuration is used to determine whether the control interface 449 * is enabled. 450 * 451 * For UNIX domain sockets (default on Linux and BSD): This is a 452 * directory that will be created for UNIX domain sockets for listening 453 * to requests from external programs (CLI/GUI, etc.) for status 454 * information and configuration. The socket file will be named based 455 * on the interface name, so multiple %wpa_supplicant processes can be 456 * run at the same time if more than one interface is used. 457 * /var/run/wpa_supplicant is the recommended directory for sockets and 458 * by default, wpa_cli will use it when trying to connect with 459 * %wpa_supplicant. 460 * 461 * Access control for the control interface can be configured 462 * by setting the directory to allow only members of a group 463 * to use sockets. This way, it is possible to run 464 * %wpa_supplicant as root (since it needs to change network 465 * configuration and open raw sockets) and still allow GUI/CLI 466 * components to be run as non-root users. However, since the 467 * control interface can be used to change the network 468 * configuration, this access needs to be protected in many 469 * cases. By default, %wpa_supplicant is configured to use gid 470 * 0 (root). If you want to allow non-root users to use the 471 * control interface, add a new group and change this value to 472 * match with that group. Add users that should have control 473 * interface access to this group. 474 * 475 * When configuring both the directory and group, use following format: 476 * DIR=/var/run/wpa_supplicant GROUP=wheel 477 * DIR=/var/run/wpa_supplicant GROUP=0 478 * (group can be either group name or gid) 479 * 480 * For UDP connections (default on Windows): The value will be ignored. 481 * This variable is just used to select that the control interface is 482 * to be created. The value can be set to, e.g., udp 483 * (ctrl_interface=udp). 484 * 485 * For Windows Named Pipe: This value can be used to set the security 486 * descriptor for controlling access to the control interface. Security 487 * descriptor can be set using Security Descriptor String Format (see 488 * http://msdn.microsoft.com/library/default.asp?url=/library/en-us/secauthz/security/security_descriptor_string_format.asp). 489 * The descriptor string needs to be prefixed with SDDL=. For example, 490 * ctrl_interface=SDDL=D: would set an empty DACL (which will reject 491 * all connections). 492 */ 493 char *ctrl_interface; 494 495 /** 496 * ctrl_interface_group - Control interface group (DEPRECATED) 497 * 498 * This variable is only used for backwards compatibility. Group for 499 * UNIX domain sockets should now be specified using GROUP=group in 500 * ctrl_interface variable. 501 */ 502 char *ctrl_interface_group; 503 504 /** 505 * fast_reauth - EAP fast re-authentication (session resumption) 506 * 507 * By default, fast re-authentication is enabled for all EAP methods 508 * that support it. This variable can be used to disable fast 509 * re-authentication (by setting fast_reauth=0). Normally, there is no 510 * need to disable fast re-authentication. 511 */ 512 int fast_reauth; 513 514 /** 515 * opensc_engine_path - Path to the OpenSSL engine for opensc 516 * 517 * This is an OpenSSL specific configuration option for loading OpenSC 518 * engine (engine_opensc.so); if %NULL, this engine is not loaded. 519 */ 520 char *opensc_engine_path; 521 522 /** 523 * pkcs11_engine_path - Path to the OpenSSL engine for PKCS#11 524 * 525 * This is an OpenSSL specific configuration option for loading PKCS#11 526 * engine (engine_pkcs11.so); if %NULL, this engine is not loaded. 527 */ 528 char *pkcs11_engine_path; 529 530 /** 531 * pkcs11_module_path - Path to the OpenSSL OpenSC/PKCS#11 module 532 * 533 * This is an OpenSSL specific configuration option for configuring 534 * path to OpenSC/PKCS#11 engine (opensc-pkcs11.so); if %NULL, this 535 * module is not loaded. 536 */ 537 char *pkcs11_module_path; 538 539 /** 540 * openssl_ciphers - OpenSSL cipher string 541 * 542 * This is an OpenSSL specific configuration option for configuring the 543 * default ciphers. If not set, "DEFAULT:!EXP:!LOW" is used as the 544 * default. 545 */ 546 char *openssl_ciphers; 547 548 /** 549 * pcsc_reader - PC/SC reader name prefix 550 * 551 * If not %NULL, PC/SC reader with a name that matches this prefix is 552 * initialized for SIM/USIM access. Empty string can be used to match 553 * the first available reader. 554 */ 555 char *pcsc_reader; 556 557 /** 558 * pcsc_pin - PIN for USIM, GSM SIM, and smartcards 559 * 560 * This field is used to configure PIN for SIM/USIM for EAP-SIM and 561 * EAP-AKA. If left out, this will be asked through control interface. 562 */ 563 char *pcsc_pin; 564 565 /** 566 * external_sim - Use external processing for SIM/USIM operations 567 */ 568 int external_sim; 569 570 /** 571 * driver_param - Driver interface parameters 572 * 573 * This text string is passed to the selected driver interface with the 574 * optional struct wpa_driver_ops::set_param() handler. This can be 575 * used to configure driver specific options without having to add new 576 * driver interface functionality. 577 */ 578 char *driver_param; 579 580 /** 581 * dot11RSNAConfigPMKLifetime - Maximum lifetime of a PMK 582 * 583 * dot11 MIB variable for the maximum lifetime of a PMK in the PMK 584 * cache (unit: seconds). 585 */ 586 unsigned int dot11RSNAConfigPMKLifetime; 587 588 /** 589 * dot11RSNAConfigPMKReauthThreshold - PMK re-authentication threshold 590 * 591 * dot11 MIB variable for the percentage of the PMK lifetime 592 * that should expire before an IEEE 802.1X reauthentication occurs. 593 */ 594 unsigned int dot11RSNAConfigPMKReauthThreshold; 595 596 /** 597 * dot11RSNAConfigSATimeout - Security association timeout 598 * 599 * dot11 MIB variable for the maximum time a security association 600 * shall take to set up (unit: seconds). 601 */ 602 unsigned int dot11RSNAConfigSATimeout; 603 604 /** 605 * update_config - Is wpa_supplicant allowed to update configuration 606 * 607 * This variable control whether wpa_supplicant is allow to re-write 608 * its configuration with wpa_config_write(). If this is zero, 609 * configuration data is only changed in memory and the external data 610 * is not overriden. If this is non-zero, wpa_supplicant will update 611 * the configuration data (e.g., a file) whenever configuration is 612 * changed. This update may replace the old configuration which can 613 * remove comments from it in case of a text file configuration. 614 */ 615 int update_config; 616 617 /** 618 * blobs - Configuration blobs 619 */ 620 struct wpa_config_blob *blobs; 621 622 /** 623 * uuid - Universally Unique IDentifier (UUID; see RFC 4122) for WPS 624 */ 625 u8 uuid[16]; 626 627 /** 628 * device_name - Device Name (WPS) 629 * User-friendly description of device; up to 32 octets encoded in 630 * UTF-8 631 */ 632 char *device_name; 633 634 /** 635 * manufacturer - Manufacturer (WPS) 636 * The manufacturer of the device (up to 64 ASCII characters) 637 */ 638 char *manufacturer; 639 640 /** 641 * model_name - Model Name (WPS) 642 * Model of the device (up to 32 ASCII characters) 643 */ 644 char *model_name; 645 646 /** 647 * model_number - Model Number (WPS) 648 * Additional device description (up to 32 ASCII characters) 649 */ 650 char *model_number; 651 652 /** 653 * serial_number - Serial Number (WPS) 654 * Serial number of the device (up to 32 characters) 655 */ 656 char *serial_number; 657 658 /** 659 * device_type - Primary Device Type (WPS) 660 */ 661 u8 device_type[WPS_DEV_TYPE_LEN]; 662 663 /** 664 * config_methods - Config Methods 665 * 666 * This is a space-separated list of supported WPS configuration 667 * methods. For example, "label virtual_display virtual_push_button 668 * keypad". 669 * Available methods: usba ethernet label display ext_nfc_token 670 * int_nfc_token nfc_interface push_button keypad 671 * virtual_display physical_display 672 * virtual_push_button physical_push_button. 673 */ 674 char *config_methods; 675 676 /** 677 * os_version - OS Version (WPS) 678 * 4-octet operating system version number 679 */ 680 u8 os_version[4]; 681 682 /** 683 * country - Country code 684 * 685 * This is the ISO/IEC alpha2 country code for which we are operating 686 * in 687 */ 688 char country[2]; 689 690 /** 691 * wps_cred_processing - Credential processing 692 * 693 * 0 = process received credentials internally 694 * 1 = do not process received credentials; just pass them over 695 * ctrl_iface to external program(s) 696 * 2 = process received credentials internally and pass them over 697 * ctrl_iface to external program(s) 698 */ 699 int wps_cred_processing; 700 701 #define MAX_SEC_DEVICE_TYPES 5 702 /** 703 * sec_device_types - Secondary Device Types (P2P) 704 */ 705 u8 sec_device_type[MAX_SEC_DEVICE_TYPES][WPS_DEV_TYPE_LEN]; 706 int num_sec_device_types; 707 708 int p2p_listen_reg_class; 709 int p2p_listen_channel; 710 int p2p_oper_reg_class; 711 int p2p_oper_channel; 712 int p2p_go_intent; 713 char *p2p_ssid_postfix; 714 int persistent_reconnect; 715 int p2p_intra_bss; 716 unsigned int num_p2p_pref_chan; 717 struct p2p_channel *p2p_pref_chan; 718 struct wpa_freq_range_list p2p_no_go_freq; 719 int p2p_add_cli_chan; 720 int p2p_ignore_shared_freq; 721 int p2p_optimize_listen_chan; 722 723 struct wpabuf *wps_vendor_ext_m1; 724 725 #define MAX_WPS_VENDOR_EXT 10 726 /** 727 * wps_vendor_ext - Vendor extension attributes in WPS 728 */ 729 struct wpabuf *wps_vendor_ext[MAX_WPS_VENDOR_EXT]; 730 731 /** 732 * p2p_group_idle - Maximum idle time in seconds for P2P group 733 * 734 * This value controls how long a P2P group is maintained after there 735 * is no other members in the group. As a GO, this means no associated 736 * stations in the group. As a P2P client, this means no GO seen in 737 * scan results. The maximum idle time is specified in seconds with 0 738 * indicating no time limit, i.e., the P2P group remains in active 739 * state indefinitely until explicitly removed. As a P2P client, the 740 * maximum idle time of P2P_MAX_CLIENT_IDLE seconds is enforced, i.e., 741 * this parameter is mainly meant for GO use and for P2P client, it can 742 * only be used to reduce the default timeout to smaller value. A 743 * special value -1 can be used to configure immediate removal of the 744 * group for P2P client role on any disconnection after the data 745 * connection has been established. 746 */ 747 int p2p_group_idle; 748 749 /** 750 * p2p_go_freq_change_policy - The GO frequency change policy 751 * 752 * This controls the behavior of the GO when there is a change in the 753 * map of the currently used frequencies in case more than one channel 754 * is supported. 755 * 756 * @P2P_GO_FREQ_MOVE_SCM: Prefer working in a single channel mode if 757 * possible. In case the GO is the only interface using its frequency 758 * and there are other station interfaces on other frequencies, the GO 759 * will migrate to one of these frequencies. 760 * 761 * @P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS: Same as P2P_GO_FREQ_MOVE_SCM, 762 * but a transition is possible only in case one of the other used 763 * frequencies is one of the frequencies in the intersection of the 764 * frequency list of the local device and the peer device. 765 * 766 * @P2P_GO_FREQ_MOVE_STAY: Prefer to stay on the current frequency. 767 * 768 * @P2P_GO_FREQ_MOVE_SCM_ECSA: Same as 769 * P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS but a transition is possible only 770 * if all the group members advertise eCSA support. 771 */ 772 enum { 773 P2P_GO_FREQ_MOVE_SCM = 0, 774 P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS = 1, 775 P2P_GO_FREQ_MOVE_STAY = 2, 776 P2P_GO_FREQ_MOVE_SCM_ECSA = 3, 777 P2P_GO_FREQ_MOVE_MAX = P2P_GO_FREQ_MOVE_SCM_ECSA, 778 } p2p_go_freq_change_policy; 779 780 #define DEFAULT_P2P_GO_FREQ_MOVE P2P_GO_FREQ_MOVE_STAY 781 782 /** 783 * p2p_passphrase_len - Passphrase length (8..63) for P2P GO 784 * 785 * This parameter controls the length of the random passphrase that is 786 * generated at the GO. 787 */ 788 unsigned int p2p_passphrase_len; 789 790 /** 791 * bss_max_count - Maximum number of BSS entries to keep in memory 792 */ 793 unsigned int bss_max_count; 794 795 /** 796 * bss_expiration_age - BSS entry age after which it can be expired 797 * 798 * This value controls the time in seconds after which a BSS entry 799 * gets removed if it has not been updated or is not in use. 800 */ 801 unsigned int bss_expiration_age; 802 803 /** 804 * bss_expiration_scan_count - Expire BSS after number of scans 805 * 806 * If the BSS entry has not been seen in this many scans, it will be 807 * removed. A value of 1 means that entry is removed after the first 808 * scan in which the BSSID is not seen. Larger values can be used 809 * to avoid BSS entries disappearing if they are not visible in 810 * every scan (e.g., low signal quality or interference). 811 */ 812 unsigned int bss_expiration_scan_count; 813 814 /** 815 * filter_ssids - SSID-based scan result filtering 816 * 817 * 0 = do not filter scan results 818 * 1 = only include configured SSIDs in scan results/BSS table 819 */ 820 int filter_ssids; 821 822 /** 823 * filter_rssi - RSSI-based scan result filtering 824 * 825 * 0 = do not filter scan results 826 * -n = filter scan results below -n dBm 827 */ 828 int filter_rssi; 829 830 /** 831 * max_num_sta - Maximum number of STAs in an AP/P2P GO 832 */ 833 unsigned int max_num_sta; 834 835 /** 836 * freq_list - Array of allowed scan frequencies or %NULL for all 837 * 838 * This is an optional zero-terminated array of frequencies in 839 * megahertz (MHz) to allow for narrowing scanning range. 840 */ 841 int *freq_list; 842 843 /** 844 * scan_cur_freq - Whether to scan only the current channel 845 * 846 * If true, attempt to scan only the current channel if any other 847 * VIFs on this radio are already associated on a particular channel. 848 */ 849 int scan_cur_freq; 850 851 /** 852 * changed_parameters - Bitmap of changed parameters since last update 853 */ 854 unsigned int changed_parameters; 855 856 /** 857 * disassoc_low_ack - Disassocicate stations with massive packet loss 858 */ 859 int disassoc_low_ack; 860 861 /** 862 * interworking - Whether Interworking (IEEE 802.11u) is enabled 863 */ 864 int interworking; 865 866 /** 867 * access_network_type - Access Network Type 868 * 869 * When Interworking is enabled, scans will be limited to APs that 870 * advertise the specified Access Network Type (0..15; with 15 871 * indicating wildcard match). 872 */ 873 int access_network_type; 874 875 /** 876 * hessid - Homogenous ESS identifier 877 * 878 * If this is set (any octet is non-zero), scans will be used to 879 * request response only from BSSes belonging to the specified 880 * Homogeneous ESS. This is used only if interworking is enabled. 881 */ 882 u8 hessid[ETH_ALEN]; 883 884 /** 885 * hs20 - Hotspot 2.0 886 */ 887 int hs20; 888 889 /** 890 * pbc_in_m1 - AP mode WPS probing workaround for PBC with Windows 7 891 * 892 * Windows 7 uses incorrect way of figuring out AP's WPS capabilities 893 * by acting as a Registrar and using M1 from the AP. The config 894 * methods attribute in that message is supposed to indicate only the 895 * configuration method supported by the AP in Enrollee role, i.e., to 896 * add an external Registrar. For that case, PBC shall not be used and 897 * as such, the PushButton config method is removed from M1 by default. 898 * If pbc_in_m1=1 is included in the configuration file, the PushButton 899 * config method is left in M1 (if included in config_methods 900 * parameter) to allow Windows 7 to use PBC instead of PIN (e.g., from 901 * a label in the AP). 902 */ 903 int pbc_in_m1; 904 905 /** 906 * autoscan - Automatic scan parameters or %NULL if none 907 * 908 * This is an optional set of parameters for automatic scanning 909 * within an interface in following format: 910 * <autoscan module name>:<module parameters> 911 */ 912 char *autoscan; 913 914 /** 915 * wps_nfc_pw_from_config - NFC Device Password was read from config 916 * 917 * This parameter can be determined whether the NFC Device Password was 918 * included in the configuration (1) or generated dynamically (0). Only 919 * the former case is re-written back to the configuration file. 920 */ 921 int wps_nfc_pw_from_config; 922 923 /** 924 * wps_nfc_dev_pw_id - NFC Device Password ID for password token 925 */ 926 int wps_nfc_dev_pw_id; 927 928 /** 929 * wps_nfc_dh_pubkey - NFC DH Public Key for password token 930 */ 931 struct wpabuf *wps_nfc_dh_pubkey; 932 933 /** 934 * wps_nfc_dh_privkey - NFC DH Private Key for password token 935 */ 936 struct wpabuf *wps_nfc_dh_privkey; 937 938 /** 939 * wps_nfc_dev_pw - NFC Device Password for password token 940 */ 941 struct wpabuf *wps_nfc_dev_pw; 942 943 /** 944 * ext_password_backend - External password backend or %NULL if none 945 * 946 * format: <backend name>[:<optional backend parameters>] 947 */ 948 char *ext_password_backend; 949 950 /* 951 * p2p_go_max_inactivity - Timeout in seconds to detect STA inactivity 952 * 953 * This timeout value is used in P2P GO mode to clean up 954 * inactive stations. 955 * By default: 300 seconds. 956 */ 957 int p2p_go_max_inactivity; 958 959 struct hostapd_wmm_ac_params wmm_ac_params[4]; 960 961 /** 962 * auto_interworking - Whether to use network selection automatically 963 * 964 * 0 = do not automatically go through Interworking network selection 965 * (i.e., require explicit interworking_select command for this) 966 * 1 = perform Interworking network selection if one or more 967 * credentials have been configured and scan did not find a 968 * matching network block 969 */ 970 int auto_interworking; 971 972 /** 973 * p2p_go_ht40 - Default mode for HT40 enable when operating as GO. 974 * 975 * This will take effect for p2p_group_add, p2p_connect, and p2p_invite. 976 * Note that regulatory constraints and driver capabilities are 977 * consulted anyway, so setting it to 1 can't do real harm. 978 * By default: 0 (disabled) 979 */ 980 int p2p_go_ht40; 981 982 /** 983 * p2p_go_vht - Default mode for VHT enable when operating as GO 984 * 985 * This will take effect for p2p_group_add, p2p_connect, and p2p_invite. 986 * Note that regulatory constraints and driver capabilities are 987 * consulted anyway, so setting it to 1 can't do real harm. 988 * By default: 0 (disabled) 989 */ 990 int p2p_go_vht; 991 992 /** 993 * p2p_go_ctwindow - CTWindow to use when operating as GO 994 * 995 * By default: 0 (no CTWindow). Values 0-127 can be used to indicate 996 * the length of the CTWindow in TUs. 997 */ 998 int p2p_go_ctwindow; 999 1000 /** 1001 * p2p_disabled - Whether P2P operations are disabled for this interface 1002 */ 1003 int p2p_disabled; 1004 1005 /** 1006 * p2p_no_group_iface - Whether group interfaces can be used 1007 * 1008 * By default, wpa_supplicant will create a separate interface for P2P 1009 * group operations if the driver supports this. This functionality can 1010 * be disabled by setting this parameter to 1. In that case, the same 1011 * interface that was used for the P2P management operations is used 1012 * also for the group operation. 1013 */ 1014 int p2p_no_group_iface; 1015 1016 /** 1017 * p2p_cli_probe - Enable/disable P2P CLI probe request handling 1018 * 1019 * If this parameter is set to 1, a connected P2P Client will receive 1020 * and handle Probe Request frames. Setting this parameter to 0 1021 * disables this option. Default value: 0. 1022 * 1023 * Note: Setting this property at run time takes effect on the following 1024 * interface state transition to/from the WPA_COMPLETED state. 1025 */ 1026 int p2p_cli_probe; 1027 1028 /** 1029 * okc - Whether to enable opportunistic key caching by default 1030 * 1031 * By default, OKC is disabled unless enabled by the per-network 1032 * proactive_key_caching=1 parameter. okc=1 can be used to change this 1033 * default behavior. 1034 */ 1035 int okc; 1036 1037 /** 1038 * pmf - Whether to enable/require PMF by default 1039 * 1040 * By default, PMF is disabled unless enabled by the per-network 1041 * ieee80211w=1 or ieee80211w=2 parameter. pmf=1/2 can be used to change 1042 * this default behavior. 1043 */ 1044 enum mfp_options pmf; 1045 1046 /** 1047 * sae_groups - Preference list of enabled groups for SAE 1048 * 1049 * By default (if this parameter is not set), the mandatory group 19 1050 * (ECC group defined over a 256-bit prime order field) is preferred, 1051 * but other groups are also enabled. If this parameter is set, the 1052 * groups will be tried in the indicated order. 1053 */ 1054 int *sae_groups; 1055 1056 /** 1057 * dtim_period - Default DTIM period in Beacon intervals 1058 * 1059 * This parameter can be used to set the default value for network 1060 * blocks that do not specify dtim_period. 1061 */ 1062 int dtim_period; 1063 1064 /** 1065 * beacon_int - Default Beacon interval in TU 1066 * 1067 * This parameter can be used to set the default value for network 1068 * blocks that do not specify beacon_int. 1069 */ 1070 int beacon_int; 1071 1072 /** 1073 * ap_vendor_elements: Vendor specific elements for Beacon/ProbeResp 1074 * 1075 * This parameter can be used to define additional vendor specific 1076 * elements for Beacon and Probe Response frames in AP/P2P GO mode. The 1077 * format for these element(s) is a hexdump of the raw information 1078 * elements (id+len+payload for one or more elements). 1079 */ 1080 struct wpabuf *ap_vendor_elements; 1081 1082 /** 1083 * ignore_old_scan_res - Ignore scan results older than request 1084 * 1085 * The driver may have a cache of scan results that makes it return 1086 * information that is older than our scan trigger. This parameter can 1087 * be used to configure such old information to be ignored instead of 1088 * allowing it to update the internal BSS table. 1089 */ 1090 int ignore_old_scan_res; 1091 1092 /** 1093 * sched_scan_interval - schedule scan interval 1094 */ 1095 unsigned int sched_scan_interval; 1096 1097 /** 1098 * tdls_external_control - External control for TDLS setup requests 1099 * 1100 * Enable TDLS mode where external programs are given the control 1101 * to specify the TDLS link to get established to the driver. The 1102 * driver requests the TDLS setup to the supplicant only for the 1103 * specified TDLS peers. 1104 */ 1105 int tdls_external_control; 1106 1107 u8 ip_addr_go[4]; 1108 u8 ip_addr_mask[4]; 1109 u8 ip_addr_start[4]; 1110 u8 ip_addr_end[4]; 1111 1112 /** 1113 * osu_dir - OSU provider information directory 1114 * 1115 * If set, allow FETCH_OSU control interface command to be used to fetch 1116 * OSU provider information into all APs and store the results in this 1117 * directory. 1118 */ 1119 char *osu_dir; 1120 1121 /** 1122 * wowlan_triggers - Wake-on-WLAN triggers 1123 * 1124 * If set, these wowlan triggers will be configured. 1125 */ 1126 char *wowlan_triggers; 1127 1128 /** 1129 * p2p_search_delay - Extra delay between concurrent search iterations 1130 * 1131 * Add extra delay (in milliseconds) between search iterations when 1132 * there is a concurrent operation to make p2p_find friendlier to 1133 * concurrent operations by avoiding it from taking 100% of radio 1134 * resources. 1135 */ 1136 unsigned int p2p_search_delay; 1137 1138 /** 1139 * mac_addr - MAC address policy default 1140 * 1141 * 0 = use permanent MAC address 1142 * 1 = use random MAC address for each ESS connection 1143 * 2 = like 1, but maintain OUI (with local admin bit set) 1144 * 1145 * By default, permanent MAC address is used unless policy is changed by 1146 * the per-network mac_addr parameter. Global mac_addr=1 can be used to 1147 * change this default behavior. 1148 */ 1149 int mac_addr; 1150 1151 /** 1152 * rand_addr_lifetime - Lifetime of random MAC address in seconds 1153 */ 1154 unsigned int rand_addr_lifetime; 1155 1156 /** 1157 * preassoc_mac_addr - Pre-association MAC address policy 1158 * 1159 * 0 = use permanent MAC address 1160 * 1 = use random MAC address 1161 * 2 = like 1, but maintain OUI (with local admin bit set) 1162 */ 1163 int preassoc_mac_addr; 1164 1165 /** 1166 * key_mgmt_offload - Use key management offload 1167 * 1168 * Key management offload should be used if the device supports it. 1169 * Key management offload is the capability of a device operating as 1170 * a station to do the exchange necessary to establish temporal keys 1171 * during initial RSN connection, after roaming, or during a PTK 1172 * rekeying operation. 1173 */ 1174 int key_mgmt_offload; 1175 1176 /** 1177 * user_mpm - MPM residency 1178 * 1179 * 0: MPM lives in driver. 1180 * 1: wpa_supplicant handles peering and station allocation. 1181 * 1182 * If AMPE or SAE is enabled, the MPM is always in userspace. 1183 */ 1184 int user_mpm; 1185 1186 /** 1187 * max_peer_links - Maximum number of peer links 1188 * 1189 * Maximum number of mesh peering currently maintained by the STA. 1190 */ 1191 int max_peer_links; 1192 1193 /** 1194 * cert_in_cb - Whether to include a peer certificate dump in events 1195 * 1196 * This controls whether peer certificates for authentication server and 1197 * its certificate chain are included in EAP peer certificate events. 1198 */ 1199 int cert_in_cb; 1200 1201 /** 1202 * mesh_max_inactivity - Timeout in seconds to detect STA inactivity 1203 * 1204 * This timeout value is used in mesh STA to clean up inactive stations. 1205 * By default: 300 seconds. 1206 */ 1207 int mesh_max_inactivity; 1208 1209 /** 1210 * dot11RSNASAERetransPeriod - Timeout to retransmit SAE Auth frame 1211 * 1212 * This timeout value is used in mesh STA to retransmit 1213 * SAE Authentication frame. 1214 * By default: 1000 milliseconds. 1215 */ 1216 int dot11RSNASAERetransPeriod; 1217 1218 /** 1219 * passive_scan - Whether to force passive scan for network connection 1220 * 1221 * This parameter can be used to force only passive scanning to be used 1222 * for network connection cases. It should be noted that this will slow 1223 * down scan operations and reduce likelihood of finding the AP. In 1224 * addition, some use cases will override this due to functional 1225 * requirements, e.g., for finding an AP that uses hidden SSID 1226 * (scan_ssid=1) or P2P device discovery. 1227 */ 1228 int passive_scan; 1229 1230 /** 1231 * reassoc_same_bss_optim - Whether to optimize reassoc-to-same-BSS 1232 */ 1233 int reassoc_same_bss_optim; 1234 1235 /** 1236 * wps_priority - Priority for the networks added through WPS 1237 * 1238 * This priority value will be set to each network profile that is added 1239 * by executing the WPS protocol. 1240 */ 1241 int wps_priority; 1242 1243 /** 1244 * fst_group_id - FST group ID 1245 */ 1246 char *fst_group_id; 1247 1248 /** 1249 * fst_priority - priority of the interface within the FST group 1250 */ 1251 int fst_priority; 1252 1253 /** 1254 * fst_llt - default FST LLT (Link-Lost Timeout) to be used for the 1255 * interface. 1256 */ 1257 int fst_llt; 1258 1259 /** 1260 * wpa_rsc_relaxation - RSC relaxation on GTK installation 1261 * 1262 * Values: 1263 * 0 - use the EAPOL-Key RSC value on GTK installation 1264 * 1 - use the null RSC if a bogus RSC value is detected in message 3 1265 * of 4-Way Handshake or message 1 of Group Key Handshake. 1266 */ 1267 int wpa_rsc_relaxation; 1268 1269 /** 1270 * sched_scan_plans - Scan plans for scheduled scan 1271 * 1272 * Each scan plan specifies the interval between scans and the number of 1273 * iterations. The last scan plan only specifies the scan interval and 1274 * will be run infinitely. 1275 * 1276 * format: <interval:iterations> <interval2:iterations2> ... <interval> 1277 */ 1278 char *sched_scan_plans; 1279 1280 #ifdef CONFIG_MBO 1281 /** 1282 * non_pref_chan - Non-preferred channels list, separated by spaces. 1283 * 1284 * format: op_class:chan:preference:reason<:detail> 1285 * Detail is optional. 1286 */ 1287 char *non_pref_chan; 1288 1289 /** 1290 * mbo_cell_capa - Cellular capabilities for MBO 1291 */ 1292 enum mbo_cellular_capa mbo_cell_capa; 1293 #endif /* CONFIG_MBO */ 1294 }; 1295 1296 1297 /* Prototypes for common functions from config.c */ 1298 1299 void wpa_config_free(struct wpa_config *ssid); 1300 void wpa_config_free_ssid(struct wpa_ssid *ssid); 1301 void wpa_config_foreach_network(struct wpa_config *config, 1302 void (*func)(void *, struct wpa_ssid *), 1303 void *arg); 1304 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id); 1305 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config); 1306 int wpa_config_remove_network(struct wpa_config *config, int id); 1307 void wpa_config_set_network_defaults(struct wpa_ssid *ssid); 1308 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value, 1309 int line); 1310 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var, 1311 const char *value); 1312 int wpa_config_dump_values(struct wpa_config *config, char *buf, 1313 size_t buflen); 1314 int wpa_config_get_value(const char *name, struct wpa_config *config, 1315 char *buf, size_t buflen); 1316 1317 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys); 1318 char * wpa_config_get(struct wpa_ssid *ssid, const char *var); 1319 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var); 1320 void wpa_config_update_psk(struct wpa_ssid *ssid); 1321 int wpa_config_add_prio_network(struct wpa_config *config, 1322 struct wpa_ssid *ssid); 1323 int wpa_config_update_prio_list(struct wpa_config *config); 1324 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config, 1325 const char *name); 1326 void wpa_config_set_blob(struct wpa_config *config, 1327 struct wpa_config_blob *blob); 1328 void wpa_config_free_blob(struct wpa_config_blob *blob); 1329 int wpa_config_remove_blob(struct wpa_config *config, const char *name); 1330 void wpa_config_flush_blobs(struct wpa_config *config); 1331 1332 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id); 1333 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config); 1334 int wpa_config_remove_cred(struct wpa_config *config, int id); 1335 void wpa_config_free_cred(struct wpa_cred *cred); 1336 int wpa_config_set_cred(struct wpa_cred *cred, const char *var, 1337 const char *value, int line); 1338 char * wpa_config_get_cred_no_key(struct wpa_cred *cred, const char *var); 1339 1340 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface, 1341 const char *driver_param); 1342 #ifndef CONFIG_NO_STDOUT_DEBUG 1343 void wpa_config_debug_dump_networks(struct wpa_config *config); 1344 #else /* CONFIG_NO_STDOUT_DEBUG */ 1345 #define wpa_config_debug_dump_networks(c) do { } while (0) 1346 #endif /* CONFIG_NO_STDOUT_DEBUG */ 1347 1348 1349 /* Prototypes for common functions from config.c */ 1350 int wpa_config_process_global(struct wpa_config *config, char *pos, int line); 1351 1352 int wpa_config_get_num_global_field_names(void); 1353 1354 const char * wpa_config_get_global_field_name(unsigned int i, int *no_var); 1355 1356 /* Prototypes for backend specific functions from the selected config_*.c */ 1357 1358 /** 1359 * wpa_config_read - Read and parse configuration database 1360 * @name: Name of the configuration (e.g., path and file name for the 1361 * configuration file) 1362 * @cfgp: Pointer to previously allocated configuration data or %NULL if none 1363 * Returns: Pointer to allocated configuration data or %NULL on failure 1364 * 1365 * This function reads configuration data, parses its contents, and allocates 1366 * data structures needed for storing configuration information. The allocated 1367 * data can be freed with wpa_config_free(). 1368 * 1369 * Each configuration backend needs to implement this function. 1370 */ 1371 struct wpa_config * wpa_config_read(const char *name, struct wpa_config *cfgp); 1372 1373 /** 1374 * wpa_config_write - Write or update configuration data 1375 * @name: Name of the configuration (e.g., path and file name for the 1376 * configuration file) 1377 * @config: Configuration data from wpa_config_read() 1378 * Returns: 0 on success, -1 on failure 1379 * 1380 * This function write all configuration data into an external database (e.g., 1381 * a text file) in a format that can be read with wpa_config_read(). This can 1382 * be used to allow wpa_supplicant to update its configuration, e.g., when a 1383 * new network is added or a password is changed. 1384 * 1385 * Each configuration backend needs to implement this function. 1386 */ 1387 int wpa_config_write(const char *name, struct wpa_config *config); 1388 1389 #endif /* CONFIG_H */ 1390