1/* 2 * wpa_supplicant/hostapd control interface library 3 * Copyright (c) 2004-2006, 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 WPA_CTRL_H 10#define WPA_CTRL_H 11 12#ifdef __cplusplus 13extern "C" { 14#endif 15 16/* wpa_supplicant control interface - fixed message prefixes */ 17 18/** Interactive request for identity/password/pin */ 19#define WPA_CTRL_REQ "CTRL-REQ-" 20 21/** Response to identity/password/pin request */ 22#define WPA_CTRL_RSP "CTRL-RSP-" 23 24/* Event messages with fixed prefix */ 25/** Authentication completed successfully and data connection enabled */ 26#define WPA_EVENT_CONNECTED "CTRL-EVENT-CONNECTED " 27/** Disconnected, data connection is not available */ 28#define WPA_EVENT_DISCONNECTED "CTRL-EVENT-DISCONNECTED " 29/** Association rejected during connection attempt */ 30#define WPA_EVENT_ASSOC_REJECT "CTRL-EVENT-ASSOC-REJECT " 31/** wpa_supplicant is exiting */ 32#define WPA_EVENT_TERMINATING "CTRL-EVENT-TERMINATING " 33/** Password change was completed successfully */ 34#define WPA_EVENT_PASSWORD_CHANGED "CTRL-EVENT-PASSWORD-CHANGED " 35/** EAP-Request/Notification received */ 36#define WPA_EVENT_EAP_NOTIFICATION "CTRL-EVENT-EAP-NOTIFICATION " 37/** EAP authentication started (EAP-Request/Identity received) */ 38#define WPA_EVENT_EAP_STARTED "CTRL-EVENT-EAP-STARTED " 39/** EAP method proposed by the server */ 40#define WPA_EVENT_EAP_PROPOSED_METHOD "CTRL-EVENT-EAP-PROPOSED-METHOD " 41/** EAP method selected */ 42#define WPA_EVENT_EAP_METHOD "CTRL-EVENT-EAP-METHOD " 43/** EAP peer certificate from TLS */ 44#define WPA_EVENT_EAP_PEER_CERT "CTRL-EVENT-EAP-PEER-CERT " 45/** EAP peer certificate alternative subject name component from TLS */ 46#define WPA_EVENT_EAP_PEER_ALT "CTRL-EVENT-EAP-PEER-ALT " 47/** EAP TLS certificate chain validation error */ 48#define WPA_EVENT_EAP_TLS_CERT_ERROR "CTRL-EVENT-EAP-TLS-CERT-ERROR " 49/** EAP status */ 50#define WPA_EVENT_EAP_STATUS "CTRL-EVENT-EAP-STATUS " 51/** EAP authentication completed successfully */ 52#define WPA_EVENT_EAP_SUCCESS "CTRL-EVENT-EAP-SUCCESS " 53/** EAP authentication failed (EAP-Failure received) */ 54#define WPA_EVENT_EAP_FAILURE "CTRL-EVENT-EAP-FAILURE " 55/** Network block temporarily disabled (e.g., due to authentication failure) */ 56#define WPA_EVENT_TEMP_DISABLED "CTRL-EVENT-SSID-TEMP-DISABLED " 57/** Temporarily disabled network block re-enabled */ 58#define WPA_EVENT_REENABLED "CTRL-EVENT-SSID-REENABLED " 59/** New scan started */ 60#define WPA_EVENT_SCAN_STARTED "CTRL-EVENT-SCAN-STARTED " 61/** New scan results available */ 62#define WPA_EVENT_SCAN_RESULTS "CTRL-EVENT-SCAN-RESULTS " 63/** Scan command failed */ 64#define WPA_EVENT_SCAN_FAILED "CTRL-EVENT-SCAN-FAILED " 65/** wpa_supplicant state change */ 66#define WPA_EVENT_STATE_CHANGE "CTRL-EVENT-STATE-CHANGE " 67/** A new BSS entry was added (followed by BSS entry id and BSSID) */ 68#define WPA_EVENT_BSS_ADDED "CTRL-EVENT-BSS-ADDED " 69/** A BSS entry was removed (followed by BSS entry id and BSSID) */ 70#define WPA_EVENT_BSS_REMOVED "CTRL-EVENT-BSS-REMOVED " 71/** No suitable network was found */ 72#define WPA_EVENT_NETWORK_NOT_FOUND "CTRL-EVENT-NETWORK-NOT-FOUND " 73/** Change in the signal level was reported by the driver */ 74#define WPA_EVENT_SIGNAL_CHANGE "CTRL-EVENT-SIGNAL-CHANGE " 75/** Regulatory domain channel */ 76#define WPA_EVENT_REGDOM_CHANGE "CTRL-EVENT-REGDOM-CHANGE " 77 78/** RSN IBSS 4-way handshakes completed with specified peer */ 79#define IBSS_RSN_COMPLETED "IBSS-RSN-COMPLETED " 80 81/** Notification of frequency conflict due to a concurrent operation. 82 * 83 * The indicated network is disabled and needs to be re-enabled before it can 84 * be used again. 85 */ 86#define WPA_EVENT_FREQ_CONFLICT "CTRL-EVENT-FREQ-CONFLICT " 87/** Frequency ranges that the driver recommends to avoid */ 88#define WPA_EVENT_AVOID_FREQ "CTRL-EVENT-AVOID-FREQ " 89/** WPS overlap detected in PBC mode */ 90#define WPS_EVENT_OVERLAP "WPS-OVERLAP-DETECTED " 91/** Available WPS AP with active PBC found in scan results */ 92#define WPS_EVENT_AP_AVAILABLE_PBC "WPS-AP-AVAILABLE-PBC " 93/** Available WPS AP with our address as authorized in scan results */ 94#define WPS_EVENT_AP_AVAILABLE_AUTH "WPS-AP-AVAILABLE-AUTH " 95/** Available WPS AP with recently selected PIN registrar found in scan results 96 */ 97#define WPS_EVENT_AP_AVAILABLE_PIN "WPS-AP-AVAILABLE-PIN " 98/** Available WPS AP found in scan results */ 99#define WPS_EVENT_AP_AVAILABLE "WPS-AP-AVAILABLE " 100/** A new credential received */ 101#define WPS_EVENT_CRED_RECEIVED "WPS-CRED-RECEIVED " 102/** M2D received */ 103#define WPS_EVENT_M2D "WPS-M2D " 104/** WPS registration failed after M2/M2D */ 105#define WPS_EVENT_FAIL "WPS-FAIL " 106/** WPS registration completed successfully */ 107#define WPS_EVENT_SUCCESS "WPS-SUCCESS " 108/** WPS enrollment attempt timed out and was terminated */ 109#define WPS_EVENT_TIMEOUT "WPS-TIMEOUT " 110/* PBC mode was activated */ 111#define WPS_EVENT_ACTIVE "WPS-PBC-ACTIVE " 112/* PBC mode was disabled */ 113#define WPS_EVENT_DISABLE "WPS-PBC-DISABLE " 114 115#define WPS_EVENT_ENROLLEE_SEEN "WPS-ENROLLEE-SEEN " 116 117#define WPS_EVENT_OPEN_NETWORK "WPS-OPEN-NETWORK " 118 119/* WPS ER events */ 120#define WPS_EVENT_ER_AP_ADD "WPS-ER-AP-ADD " 121#define WPS_EVENT_ER_AP_REMOVE "WPS-ER-AP-REMOVE " 122#define WPS_EVENT_ER_ENROLLEE_ADD "WPS-ER-ENROLLEE-ADD " 123#define WPS_EVENT_ER_ENROLLEE_REMOVE "WPS-ER-ENROLLEE-REMOVE " 124#define WPS_EVENT_ER_AP_SETTINGS "WPS-ER-AP-SETTINGS " 125#define WPS_EVENT_ER_SET_SEL_REG "WPS-ER-AP-SET-SEL-REG " 126 127/* MESH events */ 128#define MESH_GROUP_STARTED "MESH-GROUP-STARTED " 129#define MESH_GROUP_REMOVED "MESH-GROUP-REMOVED " 130#define MESH_PEER_CONNECTED "MESH-PEER-CONNECTED " 131#define MESH_PEER_DISCONNECTED "MESH-PEER-DISCONNECTED " 132/** Mesh SAE authentication failure. Wrong password suspected. */ 133#define MESH_SAE_AUTH_FAILURE "MESH-SAE-AUTH-FAILURE " 134#define MESH_SAE_AUTH_BLOCKED "MESH-SAE-AUTH-BLOCKED " 135 136/* WMM AC events */ 137#define WMM_AC_EVENT_TSPEC_ADDED "TSPEC-ADDED " 138#define WMM_AC_EVENT_TSPEC_REMOVED "TSPEC-REMOVED " 139#define WMM_AC_EVENT_TSPEC_REQ_FAILED "TSPEC-REQ-FAILED " 140 141/** P2P device found */ 142#define P2P_EVENT_DEVICE_FOUND "P2P-DEVICE-FOUND " 143 144/** P2P device lost */ 145#define P2P_EVENT_DEVICE_LOST "P2P-DEVICE-LOST " 146 147/** A P2P device requested GO negotiation, but we were not ready to start the 148 * negotiation */ 149#define P2P_EVENT_GO_NEG_REQUEST "P2P-GO-NEG-REQUEST " 150#define P2P_EVENT_GO_NEG_SUCCESS "P2P-GO-NEG-SUCCESS " 151#define P2P_EVENT_GO_NEG_FAILURE "P2P-GO-NEG-FAILURE " 152#define P2P_EVENT_GROUP_FORMATION_SUCCESS "P2P-GROUP-FORMATION-SUCCESS " 153#define P2P_EVENT_GROUP_FORMATION_FAILURE "P2P-GROUP-FORMATION-FAILURE " 154#define P2P_EVENT_GROUP_STARTED "P2P-GROUP-STARTED " 155#define P2P_EVENT_GROUP_REMOVED "P2P-GROUP-REMOVED " 156#define P2P_EVENT_CROSS_CONNECT_ENABLE "P2P-CROSS-CONNECT-ENABLE " 157#define P2P_EVENT_CROSS_CONNECT_DISABLE "P2P-CROSS-CONNECT-DISABLE " 158/* parameters: <peer address> <PIN> */ 159#define P2P_EVENT_PROV_DISC_SHOW_PIN "P2P-PROV-DISC-SHOW-PIN " 160/* parameters: <peer address> */ 161#define P2P_EVENT_PROV_DISC_ENTER_PIN "P2P-PROV-DISC-ENTER-PIN " 162/* parameters: <peer address> */ 163#define P2P_EVENT_PROV_DISC_PBC_REQ "P2P-PROV-DISC-PBC-REQ " 164/* parameters: <peer address> */ 165#define P2P_EVENT_PROV_DISC_PBC_RESP "P2P-PROV-DISC-PBC-RESP " 166/* parameters: <peer address> <status> */ 167#define P2P_EVENT_PROV_DISC_FAILURE "P2P-PROV-DISC-FAILURE" 168/* parameters: <freq> <src addr> <dialog token> <update indicator> <TLVs> */ 169#define P2P_EVENT_SERV_DISC_REQ "P2P-SERV-DISC-REQ " 170/* parameters: <src addr> <update indicator> <TLVs> */ 171#define P2P_EVENT_SERV_DISC_RESP "P2P-SERV-DISC-RESP " 172#define P2P_EVENT_SERV_ASP_RESP "P2P-SERV-ASP-RESP " 173#define P2P_EVENT_INVITATION_RECEIVED "P2P-INVITATION-RECEIVED " 174#define P2P_EVENT_INVITATION_RESULT "P2P-INVITATION-RESULT " 175#define P2P_EVENT_FIND_STOPPED "P2P-FIND-STOPPED " 176#define P2P_EVENT_PERSISTENT_PSK_FAIL "P2P-PERSISTENT-PSK-FAIL id=" 177#define P2P_EVENT_PRESENCE_RESPONSE "P2P-PRESENCE-RESPONSE " 178#define P2P_EVENT_NFC_BOTH_GO "P2P-NFC-BOTH-GO " 179#define P2P_EVENT_NFC_PEER_CLIENT "P2P-NFC-PEER-CLIENT " 180#define P2P_EVENT_NFC_WHILE_CLIENT "P2P-NFC-WHILE-CLIENT " 181#define P2P_EVENT_FALLBACK_TO_GO_NEG "P2P-FALLBACK-TO-GO-NEG " 182#define P2P_EVENT_FALLBACK_TO_GO_NEG_ENABLED "P2P-FALLBACK-TO-GO-NEG-ENABLED " 183 184/* parameters: <PMF enabled> <timeout in ms> <Session Information URL> */ 185#define ESS_DISASSOC_IMMINENT "ESS-DISASSOC-IMMINENT " 186#define P2P_EVENT_REMOVE_AND_REFORM_GROUP "P2P-REMOVE-AND-REFORM-GROUP " 187 188#define P2P_EVENT_P2PS_PROVISION_START "P2PS-PROV-START " 189#define P2P_EVENT_P2PS_PROVISION_DONE "P2PS-PROV-DONE " 190 191#define INTERWORKING_AP "INTERWORKING-AP " 192#define INTERWORKING_BLACKLISTED "INTERWORKING-BLACKLISTED " 193#define INTERWORKING_NO_MATCH "INTERWORKING-NO-MATCH " 194#define INTERWORKING_ALREADY_CONNECTED "INTERWORKING-ALREADY-CONNECTED " 195#define INTERWORKING_SELECTED "INTERWORKING-SELECTED " 196 197/* Credential block added; parameters: <id> */ 198#define CRED_ADDED "CRED-ADDED " 199/* Credential block modified; parameters: <id> <field> */ 200#define CRED_MODIFIED "CRED-MODIFIED " 201/* Credential block removed; parameters: <id> */ 202#define CRED_REMOVED "CRED-REMOVED " 203 204#define GAS_RESPONSE_INFO "GAS-RESPONSE-INFO " 205/* parameters: <addr> <dialog_token> <freq> */ 206#define GAS_QUERY_START "GAS-QUERY-START " 207/* parameters: <addr> <dialog_token> <freq> <status_code> <result> */ 208#define GAS_QUERY_DONE "GAS-QUERY-DONE " 209 210/* parameters: <addr> <result> */ 211#define ANQP_QUERY_DONE "ANQP-QUERY-DONE " 212 213#define HS20_SUBSCRIPTION_REMEDIATION "HS20-SUBSCRIPTION-REMEDIATION " 214#define HS20_DEAUTH_IMMINENT_NOTICE "HS20-DEAUTH-IMMINENT-NOTICE " 215 216#define EXT_RADIO_WORK_START "EXT-RADIO-WORK-START " 217#define EXT_RADIO_WORK_TIMEOUT "EXT-RADIO-WORK-TIMEOUT " 218 219#define RRM_EVENT_NEIGHBOR_REP_RXED "RRM-NEIGHBOR-REP-RECEIVED " 220#define RRM_EVENT_NEIGHBOR_REP_FAILED "RRM-NEIGHBOR-REP-REQUEST-FAILED " 221 222/* hostapd control interface - fixed message prefixes */ 223#define WPS_EVENT_PIN_NEEDED "WPS-PIN-NEEDED " 224#define WPS_EVENT_NEW_AP_SETTINGS "WPS-NEW-AP-SETTINGS " 225#define WPS_EVENT_REG_SUCCESS "WPS-REG-SUCCESS " 226#define WPS_EVENT_AP_SETUP_LOCKED "WPS-AP-SETUP-LOCKED " 227#define WPS_EVENT_AP_SETUP_UNLOCKED "WPS-AP-SETUP-UNLOCKED " 228#define WPS_EVENT_AP_PIN_ENABLED "WPS-AP-PIN-ENABLED " 229#define WPS_EVENT_AP_PIN_DISABLED "WPS-AP-PIN-DISABLED " 230#define AP_STA_CONNECTED "AP-STA-CONNECTED " 231#define AP_STA_DISCONNECTED "AP-STA-DISCONNECTED " 232#define AP_STA_POSSIBLE_PSK_MISMATCH "AP-STA-POSSIBLE-PSK-MISMATCH " 233 234#define AP_REJECTED_MAX_STA "AP-REJECTED-MAX-STA " 235#define AP_REJECTED_BLOCKED_STA "AP-REJECTED-BLOCKED-STA " 236 237#define AP_EVENT_ENABLED "AP-ENABLED " 238#define AP_EVENT_DISABLED "AP-DISABLED " 239 240#define INTERFACE_ENABLED "INTERFACE-ENABLED " 241#define INTERFACE_DISABLED "INTERFACE-DISABLED " 242 243#define ACS_EVENT_STARTED "ACS-STARTED " 244#define ACS_EVENT_COMPLETED "ACS-COMPLETED " 245#define ACS_EVENT_FAILED "ACS-FAILED " 246 247#define DFS_EVENT_RADAR_DETECTED "DFS-RADAR-DETECTED " 248#define DFS_EVENT_NEW_CHANNEL "DFS-NEW-CHANNEL " 249#define DFS_EVENT_CAC_START "DFS-CAC-START " 250#define DFS_EVENT_CAC_COMPLETED "DFS-CAC-COMPLETED " 251#define DFS_EVENT_NOP_FINISHED "DFS-NOP-FINISHED " 252 253#define AP_CSA_FINISHED "AP-CSA-FINISHED " 254 255/* BSS Transition Management Response frame received */ 256#define BSS_TM_RESP "BSS-TM-RESP " 257 258/* BSS command information masks */ 259 260#define WPA_BSS_MASK_ALL 0xFFFDFFFF 261#define WPA_BSS_MASK_ID BIT(0) 262#define WPA_BSS_MASK_BSSID BIT(1) 263#define WPA_BSS_MASK_FREQ BIT(2) 264#define WPA_BSS_MASK_BEACON_INT BIT(3) 265#define WPA_BSS_MASK_CAPABILITIES BIT(4) 266#define WPA_BSS_MASK_QUAL BIT(5) 267#define WPA_BSS_MASK_NOISE BIT(6) 268#define WPA_BSS_MASK_LEVEL BIT(7) 269#define WPA_BSS_MASK_TSF BIT(8) 270#define WPA_BSS_MASK_AGE BIT(9) 271#define WPA_BSS_MASK_IE BIT(10) 272#define WPA_BSS_MASK_FLAGS BIT(11) 273#define WPA_BSS_MASK_SSID BIT(12) 274#define WPA_BSS_MASK_WPS_SCAN BIT(13) 275#define WPA_BSS_MASK_P2P_SCAN BIT(14) 276#define WPA_BSS_MASK_INTERNETW BIT(15) 277#define WPA_BSS_MASK_WIFI_DISPLAY BIT(16) 278#define WPA_BSS_MASK_DELIM BIT(17) 279#define WPA_BSS_MASK_MESH_SCAN BIT(18) 280#define WPA_BSS_MASK_SNR BIT(19) 281#define WPA_BSS_MASK_EST_THROUGHPUT BIT(20) 282 283 284/* VENDOR_ELEM_* frame id values */ 285enum wpa_vendor_elem_frame { 286 VENDOR_ELEM_PROBE_REQ_P2P = 0, 287 VENDOR_ELEM_PROBE_RESP_P2P = 1, 288 VENDOR_ELEM_PROBE_RESP_P2P_GO = 2, 289 VENDOR_ELEM_BEACON_P2P_GO = 3, 290 VENDOR_ELEM_P2P_PD_REQ = 4, 291 VENDOR_ELEM_P2P_PD_RESP = 5, 292 VENDOR_ELEM_P2P_GO_NEG_REQ = 6, 293 VENDOR_ELEM_P2P_GO_NEG_RESP = 7, 294 VENDOR_ELEM_P2P_GO_NEG_CONF = 8, 295 VENDOR_ELEM_P2P_INV_REQ = 9, 296 VENDOR_ELEM_P2P_INV_RESP = 10, 297 VENDOR_ELEM_P2P_ASSOC_REQ = 11, 298 VENDOR_ELEM_P2P_ASSOC_RESP = 12, 299 VENDOR_ELEM_ASSOC_REQ = 13, 300 NUM_VENDOR_ELEM_FRAMES 301}; 302 303 304/* wpa_supplicant/hostapd control interface access */ 305 306/** 307 * wpa_ctrl_open - Open a control interface to wpa_supplicant/hostapd 308 * @ctrl_path: Path for UNIX domain sockets; ignored if UDP sockets are used. 309 * Returns: Pointer to abstract control interface data or %NULL on failure 310 * 311 * This function is used to open a control interface to wpa_supplicant/hostapd. 312 * ctrl_path is usually /var/run/wpa_supplicant or /var/run/hostapd. This path 313 * is configured in wpa_supplicant/hostapd and other programs using the control 314 * interface need to use matching path configuration. 315 */ 316struct wpa_ctrl * wpa_ctrl_open(const char *ctrl_path); 317 318 319/** 320 * wpa_ctrl_close - Close a control interface to wpa_supplicant/hostapd 321 * @ctrl: Control interface data from wpa_ctrl_open() 322 * 323 * This function is used to close a control interface. 324 */ 325void wpa_ctrl_close(struct wpa_ctrl *ctrl); 326 327 328/** 329 * wpa_ctrl_request - Send a command to wpa_supplicant/hostapd 330 * @ctrl: Control interface data from wpa_ctrl_open() 331 * @cmd: Command; usually, ASCII text, e.g., "PING" 332 * @cmd_len: Length of the cmd in bytes 333 * @reply: Buffer for the response 334 * @reply_len: Reply buffer length 335 * @msg_cb: Callback function for unsolicited messages or %NULL if not used 336 * Returns: 0 on success, -1 on error (send or receive failed), -2 on timeout 337 * 338 * This function is used to send commands to wpa_supplicant/hostapd. Received 339 * response will be written to reply and reply_len is set to the actual length 340 * of the reply. This function will block for up to two seconds while waiting 341 * for the reply. If unsolicited messages are received, the blocking time may 342 * be longer. 343 * 344 * msg_cb can be used to register a callback function that will be called for 345 * unsolicited messages received while waiting for the command response. These 346 * messages may be received if wpa_ctrl_request() is called at the same time as 347 * wpa_supplicant/hostapd is sending such a message. This can happen only if 348 * the program has used wpa_ctrl_attach() to register itself as a monitor for 349 * event messages. Alternatively to msg_cb, programs can register two control 350 * interface connections and use one of them for commands and the other one for 351 * receiving event messages, in other words, call wpa_ctrl_attach() only for 352 * the control interface connection that will be used for event messages. 353 */ 354int wpa_ctrl_request(struct wpa_ctrl *ctrl, const char *cmd, size_t cmd_len, 355 char *reply, size_t *reply_len, 356 void (*msg_cb)(char *msg, size_t len)); 357 358 359/** 360 * wpa_ctrl_attach - Register as an event monitor for the control interface 361 * @ctrl: Control interface data from wpa_ctrl_open() 362 * Returns: 0 on success, -1 on failure, -2 on timeout 363 * 364 * This function registers the control interface connection as a monitor for 365 * wpa_supplicant/hostapd events. After a success wpa_ctrl_attach() call, the 366 * control interface connection starts receiving event messages that can be 367 * read with wpa_ctrl_recv(). 368 */ 369int wpa_ctrl_attach(struct wpa_ctrl *ctrl); 370 371 372/** 373 * wpa_ctrl_detach - Unregister event monitor from the control interface 374 * @ctrl: Control interface data from wpa_ctrl_open() 375 * Returns: 0 on success, -1 on failure, -2 on timeout 376 * 377 * This function unregisters the control interface connection as a monitor for 378 * wpa_supplicant/hostapd events, i.e., cancels the registration done with 379 * wpa_ctrl_attach(). 380 */ 381int wpa_ctrl_detach(struct wpa_ctrl *ctrl); 382 383 384/** 385 * wpa_ctrl_recv - Receive a pending control interface message 386 * @ctrl: Control interface data from wpa_ctrl_open() 387 * @reply: Buffer for the message data 388 * @reply_len: Length of the reply buffer 389 * Returns: 0 on success, -1 on failure 390 * 391 * This function will receive a pending control interface message. The received 392 * response will be written to reply and reply_len is set to the actual length 393 * of the reply. 394 395 * wpa_ctrl_recv() is only used for event messages, i.e., wpa_ctrl_attach() 396 * must have been used to register the control interface as an event monitor. 397 */ 398int wpa_ctrl_recv(struct wpa_ctrl *ctrl, char *reply, size_t *reply_len); 399 400 401/** 402 * wpa_ctrl_pending - Check whether there are pending event messages 403 * @ctrl: Control interface data from wpa_ctrl_open() 404 * Returns: 1 if there are pending messages, 0 if no, or -1 on error 405 * 406 * This function will check whether there are any pending control interface 407 * message available to be received with wpa_ctrl_recv(). wpa_ctrl_pending() is 408 * only used for event messages, i.e., wpa_ctrl_attach() must have been used to 409 * register the control interface as an event monitor. 410 */ 411int wpa_ctrl_pending(struct wpa_ctrl *ctrl); 412 413 414/** 415 * wpa_ctrl_get_fd - Get file descriptor used by the control interface 416 * @ctrl: Control interface data from wpa_ctrl_open() 417 * Returns: File descriptor used for the connection 418 * 419 * This function can be used to get the file descriptor that is used for the 420 * control interface connection. The returned value can be used, e.g., with 421 * select() while waiting for multiple events. 422 * 423 * The returned file descriptor must not be used directly for sending or 424 * receiving packets; instead, the library functions wpa_ctrl_request() and 425 * wpa_ctrl_recv() must be used for this. 426 */ 427int wpa_ctrl_get_fd(struct wpa_ctrl *ctrl); 428 429#ifdef ANDROID 430/** 431 * wpa_ctrl_cleanup() - Delete any local UNIX domain socket files that 432 * may be left over from clients that were previously connected to 433 * wpa_supplicant. This keeps these files from being orphaned in the 434 * event of crashes that prevented them from being removed as part 435 * of the normal orderly shutdown. 436 */ 437void wpa_ctrl_cleanup(void); 438#endif /* ANDROID */ 439 440#ifdef CONFIG_CTRL_IFACE_UDP 441/* Port range for multiple wpa_supplicant instances and multiple VIFs */ 442#define WPA_CTRL_IFACE_PORT 9877 443#define WPA_CTRL_IFACE_PORT_LIMIT 50 /* decremented from start */ 444#define WPA_GLOBAL_CTRL_IFACE_PORT 9878 445#define WPA_GLOBAL_CTRL_IFACE_PORT_LIMIT 20 /* incremented from start */ 446 447char * wpa_ctrl_get_remote_ifname(struct wpa_ctrl *ctrl); 448#endif /* CONFIG_CTRL_IFACE_UDP */ 449 450 451#ifdef __cplusplus 452} 453#endif 454 455#endif /* WPA_CTRL_H */ 456