p2p.h revision d30ac604c9f6da71a0dd7f46d25be05a2a62cfbb
1fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot/* 2fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * Wi-Fi Direct - P2P module 3fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * Copyright (c) 2009-2010, Atheros Communications 4fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * 5fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * This software may be distributed under the terms of the BSD license. 6fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * See README for more details. 7fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot */ 8fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 9fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#ifndef P2P_H 10fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#define P2P_H 11fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 12fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "wps/wps_defs.h" 13fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 14fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot/** 15fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * P2P_MAX_REG_CLASSES - Maximum number of regulatory classes 16fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot */ 17fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#define P2P_MAX_REG_CLASSES 10 18fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 19fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot/** 20fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * P2P_MAX_REG_CLASS_CHANNELS - Maximum number of channels per regulatory class 21fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot */ 22fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#define P2P_MAX_REG_CLASS_CHANNELS 20 23fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 24fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot/** 25fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * struct p2p_channels - List of supported channels 26fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot */ 27fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotstruct p2p_channels { 28fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot /** 29fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * struct p2p_reg_class - Supported regulatory class 30fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot */ 31fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot struct p2p_reg_class { 32fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot /** 33fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * reg_class - Regulatory class (IEEE 802.11-2007, Annex J) 34fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot */ 35fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot u8 reg_class; 36fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 37fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot /** 38fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * channel - Supported channels 39fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot */ 40fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot u8 channel[P2P_MAX_REG_CLASS_CHANNELS]; 41fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 42fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot /** 43fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * channels - Number of channel entries in use 44fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot */ 45fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot size_t channels; 46fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } reg_class[P2P_MAX_REG_CLASSES]; 47fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 48fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot /** 49fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * reg_classes - Number of reg_class entries in use 50fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot */ 51fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot size_t reg_classes; 52fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot}; 53fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 54fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotenum p2p_wps_method { 55fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot WPS_NOT_READY, WPS_PIN_DISPLAY, WPS_PIN_KEYPAD, WPS_PBC, WPS_NFC 56fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot}; 57fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 58fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot/** 59fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * struct p2p_go_neg_results - P2P Group Owner Negotiation results 60fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot */ 61fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotstruct p2p_go_neg_results { 62 /** 63 * status - Negotiation result (Status Code) 64 * 65 * 0 (P2P_SC_SUCCESS) indicates success. Non-zero values indicate 66 * failed negotiation. 67 */ 68 int status; 69 70 /** 71 * role_go - Whether local end is Group Owner 72 */ 73 int role_go; 74 75 /** 76 * freq - Frequency of the group operational channel in MHz 77 */ 78 int freq; 79 80 int ht40; 81 82 int vht; 83 84 /** 85 * ssid - SSID of the group 86 */ 87 u8 ssid[32]; 88 89 /** 90 * ssid_len - Length of SSID in octets 91 */ 92 size_t ssid_len; 93 94 /** 95 * psk - WPA pre-shared key (256 bits) (GO only) 96 */ 97 u8 psk[32]; 98 99 /** 100 * psk_set - Whether PSK field is configured (GO only) 101 */ 102 int psk_set; 103 104 /** 105 * passphrase - WPA2-Personal passphrase for the group (GO only) 106 */ 107 char passphrase[64]; 108 109 /** 110 * peer_device_addr - P2P Device Address of the peer 111 */ 112 u8 peer_device_addr[ETH_ALEN]; 113 114 /** 115 * peer_interface_addr - P2P Interface Address of the peer 116 */ 117 u8 peer_interface_addr[ETH_ALEN]; 118 119 /** 120 * wps_method - WPS method to be used during provisioning 121 */ 122 enum p2p_wps_method wps_method; 123 124#define P2P_MAX_CHANNELS 50 125 126 /** 127 * freq_list - Zero-terminated list of possible operational channels 128 */ 129 int freq_list[P2P_MAX_CHANNELS]; 130 131 /** 132 * persistent_group - Whether the group should be made persistent 133 * 0 = not persistent 134 * 1 = persistent group without persistent reconnect 135 * 2 = persistent group with persistent reconnect 136 */ 137 int persistent_group; 138 139 /** 140 * peer_config_timeout - Peer configuration timeout (in 10 msec units) 141 */ 142 unsigned int peer_config_timeout; 143}; 144 145struct p2p_data; 146 147enum p2p_scan_type { 148 P2P_SCAN_SOCIAL, 149 P2P_SCAN_FULL, 150 P2P_SCAN_SOCIAL_PLUS_ONE 151}; 152 153#define P2P_MAX_WPS_VENDOR_EXT 10 154 155/** 156 * struct p2p_peer_info - P2P peer information 157 */ 158struct p2p_peer_info { 159 /** 160 * p2p_device_addr - P2P Device Address of the peer 161 */ 162 u8 p2p_device_addr[ETH_ALEN]; 163 164 /** 165 * pri_dev_type - Primary Device Type 166 */ 167 u8 pri_dev_type[8]; 168 169 /** 170 * device_name - Device Name (0..32 octets encoded in UTF-8) 171 */ 172 char device_name[33]; 173 174 /** 175 * manufacturer - Manufacturer (0..64 octets encoded in UTF-8) 176 */ 177 char manufacturer[65]; 178 179 /** 180 * model_name - Model Name (0..32 octets encoded in UTF-8) 181 */ 182 char model_name[33]; 183 184 /** 185 * model_number - Model Number (0..32 octets encoded in UTF-8) 186 */ 187 char model_number[33]; 188 189 /** 190 * serial_number - Serial Number (0..32 octets encoded in UTF-8) 191 */ 192 char serial_number[33]; 193 194 /** 195 * level - Signal level 196 */ 197 int level; 198 199 /** 200 * config_methods - WPS Configuration Methods 201 */ 202 u16 config_methods; 203 204 /** 205 * dev_capab - Device Capabilities 206 */ 207 u8 dev_capab; 208 209 /** 210 * group_capab - Group Capabilities 211 */ 212 u8 group_capab; 213 214 /** 215 * wps_sec_dev_type_list - WPS secondary device type list 216 * 217 * This list includes from 0 to 16 Secondary Device Types as indicated 218 * by wps_sec_dev_type_list_len (8 * number of types). 219 */ 220 u8 wps_sec_dev_type_list[128]; 221 222 /** 223 * wps_sec_dev_type_list_len - Length of secondary device type list 224 */ 225 size_t wps_sec_dev_type_list_len; 226 227 struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT]; 228 229 /** 230 * wfd_subelems - Wi-Fi Display subelements from WFD IE(s) 231 */ 232 struct wpabuf *wfd_subelems; 233}; 234 235enum p2p_prov_disc_status { 236 P2P_PROV_DISC_SUCCESS, 237 P2P_PROV_DISC_TIMEOUT, 238 P2P_PROV_DISC_REJECTED, 239 P2P_PROV_DISC_TIMEOUT_JOIN, 240}; 241 242struct p2p_channel { 243 u8 op_class; 244 u8 chan; 245}; 246 247/** 248 * struct p2p_config - P2P configuration 249 * 250 * This configuration is provided to the P2P module during initialization with 251 * p2p_init(). 252 */ 253struct p2p_config { 254 /** 255 * country - Country code to use in P2P operations 256 */ 257 char country[3]; 258 259 /** 260 * reg_class - Regulatory class for own listen channel 261 */ 262 u8 reg_class; 263 264 /** 265 * channel - Own listen channel 266 */ 267 u8 channel; 268 269 /** 270 * channel_forced - the listen channel was forced by configuration 271 * or by control interface and cannot be overridden 272 */ 273 u8 channel_forced; 274 275 /** 276 * Regulatory class for own operational channel 277 */ 278 u8 op_reg_class; 279 280 /** 281 * op_channel - Own operational channel 282 */ 283 u8 op_channel; 284 285 /** 286 * cfg_op_channel - Whether op_channel is hardcoded in configuration 287 */ 288 u8 cfg_op_channel; 289 290 /** 291 * channels - Own supported regulatory classes and channels 292 * 293 * List of supposerted channels per regulatory class. The regulatory 294 * classes are defined in IEEE Std 802.11-2007 Annex J and the 295 * numbering of the clases depends on the configured country code. 296 */ 297 struct p2p_channels channels; 298 299 /** 300 * cli_channels - Additional client channels 301 * 302 * This list of channels (if any) will be used when advertising local 303 * channels during GO Negotiation or Invitation for the cases where the 304 * local end may become the client. This may allow the peer to become a 305 * GO on additional channels if it supports these options. The main use 306 * case for this is to include passive-scan channels on devices that may 307 * not know their current location and have configured most channels to 308 * not allow initiation of radition (i.e., another device needs to take 309 * master responsibilities). 310 */ 311 struct p2p_channels cli_channels; 312 313 /** 314 * num_pref_chan - Number of pref_chan entries 315 */ 316 unsigned int num_pref_chan; 317 318 /** 319 * pref_chan - Preferred channels for GO Negotiation 320 */ 321 struct p2p_channel *pref_chan; 322 323 /** 324 * pri_dev_type - Primary Device Type (see WPS) 325 */ 326 u8 pri_dev_type[8]; 327 328 /** 329 * P2P_SEC_DEVICE_TYPES - Maximum number of secondary device types 330 */ 331#define P2P_SEC_DEVICE_TYPES 5 332 333 /** 334 * sec_dev_type - Optional secondary device types 335 */ 336 u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8]; 337 338 /** 339 * num_sec_dev_types - Number of sec_dev_type entries 340 */ 341 size_t num_sec_dev_types; 342 343 /** 344 * dev_addr - P2P Device Address 345 */ 346 u8 dev_addr[ETH_ALEN]; 347 348 /** 349 * dev_name - Device Name 350 */ 351 char *dev_name; 352 353 char *manufacturer; 354 char *model_name; 355 char *model_number; 356 char *serial_number; 357 358 u8 uuid[16]; 359 u16 config_methods; 360 361 /** 362 * concurrent_operations - Whether concurrent operations are supported 363 */ 364 int concurrent_operations; 365 366 /** 367 * max_peers - Maximum number of discovered peers to remember 368 * 369 * If more peers are discovered, older entries will be removed to make 370 * room for the new ones. 371 */ 372 size_t max_peers; 373 374 /** 375 * p2p_intra_bss - Intra BSS communication is supported 376 */ 377 int p2p_intra_bss; 378 379 /** 380 * ssid_postfix - Postfix data to add to the SSID 381 * 382 * This data will be added to the end of the SSID after the 383 * DIRECT-<random two octets> prefix. 384 */ 385 u8 ssid_postfix[32 - 9]; 386 387 /** 388 * ssid_postfix_len - Length of the ssid_postfix data 389 */ 390 size_t ssid_postfix_len; 391 392 /** 393 * max_listen - Maximum listen duration in ms 394 */ 395 unsigned int max_listen; 396 397 /** 398 * passphrase_len - Passphrase length (8..63) 399 * 400 * This parameter controls the length of the random passphrase that is 401 * generated at the GO. 402 */ 403 unsigned int passphrase_len; 404 405 /** 406 * cb_ctx - Context to use with callback functions 407 */ 408 void *cb_ctx; 409 410 /** 411 * debug_print - Debug print 412 * @ctx: Callback context from cb_ctx 413 * @level: Debug verbosity level (MSG_*) 414 * @msg: Debug message 415 */ 416 void (*debug_print)(void *ctx, int level, const char *msg); 417 418 419 /* Callbacks to request lower layer driver operations */ 420 421 /** 422 * p2p_scan - Request a P2P scan/search 423 * @ctx: Callback context from cb_ctx 424 * @type: Scan type 425 * @freq: Specific frequency (MHz) to scan or 0 for no restriction 426 * @num_req_dev_types: Number of requested device types 427 * @req_dev_types: Array containing requested device types 428 * @dev_id: Device ID to search for or %NULL to find all devices 429 * @pw_id: Device Password ID 430 * Returns: 0 on success, -1 on failure 431 * 432 * This callback function is used to request a P2P scan or search 433 * operation to be completed. Type type argument specifies which type 434 * of scan is to be done. @P2P_SCAN_SOCIAL indicates that only the 435 * social channels (1, 6, 11) should be scanned. @P2P_SCAN_FULL 436 * indicates that all channels are to be scanned. 437 * @P2P_SCAN_SOCIAL_PLUS_ONE request scan of all the social channels 438 * plus one extra channel specified by freq. 439 * 440 * The full scan is used for the initial scan to find group owners from 441 * all. The other types are used during search phase scan of the social 442 * channels (with potential variation if the Listen channel of the 443 * target peer is known or if other channels are scanned in steps). 444 * 445 * The scan results are returned after this call by calling 446 * p2p_scan_res_handler() for each scan result that has a P2P IE and 447 * then calling p2p_scan_res_handled() to indicate that all scan 448 * results have been indicated. 449 */ 450 int (*p2p_scan)(void *ctx, enum p2p_scan_type type, int freq, 451 unsigned int num_req_dev_types, 452 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id); 453 454 /** 455 * send_probe_resp - Transmit a Probe Response frame 456 * @ctx: Callback context from cb_ctx 457 * @buf: Probe Response frame (including the header and body) 458 * Returns: 0 on success, -1 on failure 459 * 460 * This function is used to reply to Probe Request frames that were 461 * indicated with a call to p2p_probe_req_rx(). The response is to be 462 * sent on the same channel or to be dropped if the driver is not 463 * anymore listening to Probe Request frames. 464 * 465 * Alternatively, the responsibility for building the Probe Response 466 * frames in Listen state may be in another system component in which 467 * case this function need to be implemented (i.e., the function 468 * pointer can be %NULL). The WPS and P2P IEs to be added for Probe 469 * Response frames in such a case are available from the 470 * start_listen() callback. It should be noted that the received Probe 471 * Request frames must be indicated by calling p2p_probe_req_rx() even 472 * if this send_probe_resp() is not used. 473 */ 474 int (*send_probe_resp)(void *ctx, const struct wpabuf *buf); 475 476 /** 477 * send_action - Transmit an Action frame 478 * @ctx: Callback context from cb_ctx 479 * @freq: Frequency in MHz for the channel on which to transmit 480 * @dst: Destination MAC address (Address 1) 481 * @src: Source MAC address (Address 2) 482 * @bssid: BSSID (Address 3) 483 * @buf: Frame body (starting from Category field) 484 * @len: Length of buf in octets 485 * @wait_time: How many msec to wait for a response frame 486 * Returns: 0 on success, -1 on failure 487 * 488 * The Action frame may not be transmitted immediately and the status 489 * of the transmission must be reported by calling 490 * p2p_send_action_cb() once the frame has either been transmitted or 491 * it has been dropped due to excessive retries or other failure to 492 * transmit. 493 */ 494 int (*send_action)(void *ctx, unsigned int freq, const u8 *dst, 495 const u8 *src, const u8 *bssid, const u8 *buf, 496 size_t len, unsigned int wait_time); 497 498 /** 499 * send_action_done - Notify that Action frame sequence was completed 500 * @ctx: Callback context from cb_ctx 501 * 502 * This function is called when the Action frame sequence that was 503 * started with send_action() has been completed, i.e., when there is 504 * no need to wait for a response from the destination peer anymore. 505 */ 506 void (*send_action_done)(void *ctx); 507 508 /** 509 * start_listen - Start Listen state 510 * @ctx: Callback context from cb_ctx 511 * @freq: Frequency of the listen channel in MHz 512 * @duration: Duration for the Listen state in milliseconds 513 * @probe_resp_ie: IE(s) to be added to Probe Response frames 514 * Returns: 0 on success, -1 on failure 515 * 516 * This Listen state may not start immediately since the driver may 517 * have other pending operations to complete first. Once the Listen 518 * state has started, p2p_listen_cb() must be called to notify the P2P 519 * module. Once the Listen state is stopped, p2p_listen_end() must be 520 * called to notify the P2P module that the driver is not in the Listen 521 * state anymore. 522 * 523 * If the send_probe_resp() is not used for generating the response, 524 * the IEs from probe_resp_ie need to be added to the end of the Probe 525 * Response frame body. If send_probe_resp() is used, the probe_resp_ie 526 * information can be ignored. 527 */ 528 int (*start_listen)(void *ctx, unsigned int freq, 529 unsigned int duration, 530 const struct wpabuf *probe_resp_ie); 531 /** 532 * stop_listen - Stop Listen state 533 * @ctx: Callback context from cb_ctx 534 * 535 * This callback can be used to stop a Listen state operation that was 536 * previously requested with start_listen(). 537 */ 538 void (*stop_listen)(void *ctx); 539 540 /** 541 * get_noa - Get current Notice of Absence attribute payload 542 * @ctx: Callback context from cb_ctx 543 * @interface_addr: P2P Interface Address of the GO 544 * @buf: Buffer for returning NoA 545 * @buf_len: Buffer length in octets 546 * Returns: Number of octets used in buf, 0 to indicate no NoA is being 547 * advertized, or -1 on failure 548 * 549 * This function is used to fetch the current Notice of Absence 550 * attribute value from GO. 551 */ 552 int (*get_noa)(void *ctx, const u8 *interface_addr, u8 *buf, 553 size_t buf_len); 554 555 /* Callbacks to notify events to upper layer management entity */ 556 557 /** 558 * dev_found - Notification of a found P2P Device 559 * @ctx: Callback context from cb_ctx 560 * @addr: Source address of the message triggering this notification 561 * @info: P2P peer information 562 * @new_device: Inform if the peer is newly found 563 * 564 * This callback is used to notify that a new P2P Device has been 565 * found. This may happen, e.g., during Search state based on scan 566 * results or during Listen state based on receive Probe Request and 567 * Group Owner Negotiation Request. 568 */ 569 void (*dev_found)(void *ctx, const u8 *addr, 570 const struct p2p_peer_info *info, 571 int new_device); 572 573 /** 574 * dev_lost - Notification of a lost P2P Device 575 * @ctx: Callback context from cb_ctx 576 * @dev_addr: P2P Device Address of the lost P2P Device 577 * 578 * This callback is used to notify that a P2P Device has been deleted. 579 */ 580 void (*dev_lost)(void *ctx, const u8 *dev_addr); 581 582 /** 583 * find_stopped - Notification of a p2p_find operation stopping 584 * @ctx: Callback context from cb_ctx 585 */ 586 void (*find_stopped)(void *ctx); 587 588 /** 589 * go_neg_req_rx - Notification of a receive GO Negotiation Request 590 * @ctx: Callback context from cb_ctx 591 * @src: Source address of the message triggering this notification 592 * @dev_passwd_id: WPS Device Password ID 593 * 594 * This callback is used to notify that a P2P Device is requesting 595 * group owner negotiation with us, but we do not have all the 596 * necessary information to start GO Negotiation. This indicates that 597 * the local user has not authorized the connection yet by providing a 598 * PIN or PBC button press. This information can be provided with a 599 * call to p2p_connect(). 600 */ 601 void (*go_neg_req_rx)(void *ctx, const u8 *src, u16 dev_passwd_id); 602 603 /** 604 * go_neg_completed - Notification of GO Negotiation results 605 * @ctx: Callback context from cb_ctx 606 * @res: GO Negotiation results 607 * 608 * This callback is used to notify that Group Owner Negotiation has 609 * been completed. Non-zero struct p2p_go_neg_results::status indicates 610 * failed negotiation. In case of success, this function is responsible 611 * for creating a new group interface (or using the existing interface 612 * depending on driver features), setting up the group interface in 613 * proper mode based on struct p2p_go_neg_results::role_go and 614 * initializing WPS provisioning either as a Registrar (if GO) or as an 615 * Enrollee. Successful WPS provisioning must be indicated by calling 616 * p2p_wps_success_cb(). The callee is responsible for timing out group 617 * formation if WPS provisioning cannot be completed successfully 618 * within 15 seconds. 619 */ 620 void (*go_neg_completed)(void *ctx, struct p2p_go_neg_results *res); 621 622 /** 623 * sd_request - Callback on Service Discovery Request 624 * @ctx: Callback context from cb_ctx 625 * @freq: Frequency (in MHz) of the channel 626 * @sa: Source address of the request 627 * @dialog_token: Dialog token 628 * @update_indic: Service Update Indicator from the source of request 629 * @tlvs: P2P Service Request TLV(s) 630 * @tlvs_len: Length of tlvs buffer in octets 631 * 632 * This callback is used to indicate reception of a service discovery 633 * request. Response to the query must be indicated by calling 634 * p2p_sd_response() with the context information from the arguments to 635 * this callback function. 636 * 637 * This callback handler can be set to %NULL to indicate that service 638 * discovery is not supported. 639 */ 640 void (*sd_request)(void *ctx, int freq, const u8 *sa, u8 dialog_token, 641 u16 update_indic, const u8 *tlvs, size_t tlvs_len); 642 643 /** 644 * sd_response - Callback on Service Discovery Response 645 * @ctx: Callback context from cb_ctx 646 * @sa: Source address of the request 647 * @update_indic: Service Update Indicator from the source of response 648 * @tlvs: P2P Service Response TLV(s) 649 * @tlvs_len: Length of tlvs buffer in octets 650 * 651 * This callback is used to indicate reception of a service discovery 652 * response. This callback handler can be set to %NULL if no service 653 * discovery requests are used. The information provided with this call 654 * is replies to the queries scheduled with p2p_sd_request(). 655 */ 656 void (*sd_response)(void *ctx, const u8 *sa, u16 update_indic, 657 const u8 *tlvs, size_t tlvs_len); 658 659 /** 660 * prov_disc_req - Callback on Provisiong Discovery Request 661 * @ctx: Callback context from cb_ctx 662 * @peer: Source address of the request 663 * @config_methods: Requested WPS Config Method 664 * @dev_addr: P2P Device Address of the found P2P Device 665 * @pri_dev_type: Primary Device Type 666 * @dev_name: Device Name 667 * @supp_config_methods: Supported configuration Methods 668 * @dev_capab: Device Capabilities 669 * @group_capab: Group Capabilities 670 * @group_id: P2P Group ID (or %NULL if not included) 671 * @group_id_len: Length of P2P Group ID 672 * 673 * This callback is used to indicate reception of a Provision Discovery 674 * Request frame that the P2P module accepted. 675 */ 676 void (*prov_disc_req)(void *ctx, const u8 *peer, u16 config_methods, 677 const u8 *dev_addr, const u8 *pri_dev_type, 678 const char *dev_name, u16 supp_config_methods, 679 u8 dev_capab, u8 group_capab, 680 const u8 *group_id, size_t group_id_len); 681 682 /** 683 * prov_disc_resp - Callback on Provisiong Discovery Response 684 * @ctx: Callback context from cb_ctx 685 * @peer: Source address of the response 686 * @config_methods: Value from p2p_prov_disc_req() or 0 on failure 687 * 688 * This callback is used to indicate reception of a Provision Discovery 689 * Response frame for a pending request scheduled with 690 * p2p_prov_disc_req(). This callback handler can be set to %NULL if 691 * provision discovery is not used. 692 */ 693 void (*prov_disc_resp)(void *ctx, const u8 *peer, u16 config_methods); 694 695 /** 696 * prov_disc_fail - Callback on Provision Discovery failure 697 * @ctx: Callback context from cb_ctx 698 * @peer: Source address of the response 699 * @status: Cause of failure, will not be %P2P_PROV_DISC_SUCCESS 700 * 701 * This callback is used to indicate either a failure or no response 702 * to an earlier provision discovery request. 703 * 704 * This callback handler can be set to %NULL if provision discovery 705 * is not used or failures do not need to be indicated. 706 */ 707 void (*prov_disc_fail)(void *ctx, const u8 *peer, 708 enum p2p_prov_disc_status status); 709 710 /** 711 * invitation_process - Optional callback for processing Invitations 712 * @ctx: Callback context from cb_ctx 713 * @sa: Source address of the Invitation Request 714 * @bssid: P2P Group BSSID from the request or %NULL if not included 715 * @go_dev_addr: GO Device Address from P2P Group ID 716 * @ssid: SSID from P2P Group ID 717 * @ssid_len: Length of ssid buffer in octets 718 * @go: Variable for returning whether the local end is GO in the group 719 * @group_bssid: Buffer for returning P2P Group BSSID (if local end GO) 720 * @force_freq: Variable for returning forced frequency for the group 721 * @persistent_group: Whether this is an invitation to reinvoke a 722 * persistent group (instead of invitation to join an active 723 * group) 724 * @channels: Available operating channels for the group 725 * @dev_pw_id: Device Password ID for NFC static handover or -1 if not 726 * used 727 * Returns: Status code (P2P_SC_*) 728 * 729 * This optional callback can be used to implement persistent reconnect 730 * by allowing automatic restarting of persistent groups without user 731 * interaction. If this callback is not implemented (i.e., is %NULL), 732 * the received Invitation Request frames are replied with 733 * %P2P_SC_REQ_RECEIVED status and indicated to upper layer with the 734 * invitation_result() callback. 735 * 736 * If the requested parameters are acceptable and the group is known, 737 * %P2P_SC_SUCCESS may be returned. If the requested group is unknown, 738 * %P2P_SC_FAIL_UNKNOWN_GROUP should be returned. %P2P_SC_REQ_RECEIVED 739 * can be returned if there is not enough data to provide immediate 740 * response, i.e., if some sort of user interaction is needed. The 741 * invitation_received() callback will be called in that case 742 * immediately after this call. 743 */ 744 u8 (*invitation_process)(void *ctx, const u8 *sa, const u8 *bssid, 745 const u8 *go_dev_addr, const u8 *ssid, 746 size_t ssid_len, int *go, u8 *group_bssid, 747 int *force_freq, int persistent_group, 748 const struct p2p_channels *channels, 749 int dev_pw_id); 750 751 /** 752 * invitation_received - Callback on Invitation Request RX 753 * @ctx: Callback context from cb_ctx 754 * @sa: Source address of the Invitation Request 755 * @bssid: P2P Group BSSID or %NULL if not received 756 * @ssid: SSID of the group 757 * @ssid_len: Length of ssid in octets 758 * @go_dev_addr: GO Device Address 759 * @status: Response Status 760 * @op_freq: Operational frequency for the group 761 * 762 * This callback is used to indicate sending of an Invitation Response 763 * for a received Invitation Request. If status == 0 (success), the 764 * upper layer code is responsible for starting the group. status == 1 765 * indicates need to get user authorization for the group. Other status 766 * values indicate that the invitation request was rejected. 767 */ 768 void (*invitation_received)(void *ctx, const u8 *sa, const u8 *bssid, 769 const u8 *ssid, size_t ssid_len, 770 const u8 *go_dev_addr, u8 status, 771 int op_freq); 772 773 /** 774 * invitation_result - Callback on Invitation result 775 * @ctx: Callback context from cb_ctx 776 * @status: Negotiation result (Status Code) 777 * @bssid: P2P Group BSSID or %NULL if not received 778 * @channels: Available operating channels for the group 779 * @addr: Peer address 780 * @freq: Frequency (in MHz) indicated during invitation or 0 781 * @peer_oper_freq: Operating frequency (in MHz) advertized by the peer 782 * during invitation or 0 783 * 784 * This callback is used to indicate result of an Invitation procedure 785 * started with a call to p2p_invite(). The indicated status code is 786 * the value received from the peer in Invitation Response with 0 787 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a 788 * local failure in transmitting the Invitation Request. 789 */ 790 void (*invitation_result)(void *ctx, int status, const u8 *bssid, 791 const struct p2p_channels *channels, 792 const u8 *addr, int freq, int peer_oper_freq); 793 794 /** 795 * go_connected - Check whether we are connected to a GO 796 * @ctx: Callback context from cb_ctx 797 * @dev_addr: P2P Device Address of a GO 798 * Returns: 1 if we are connected as a P2P client to the specified GO 799 * or 0 if not. 800 */ 801 int (*go_connected)(void *ctx, const u8 *dev_addr); 802 803 /** 804 * presence_resp - Callback on Presence Response 805 * @ctx: Callback context from cb_ctx 806 * @src: Source address (GO's P2P Interface Address) 807 * @status: Result of the request (P2P_SC_*) 808 * @noa: Returned NoA value 809 * @noa_len: Length of the NoA buffer in octets 810 */ 811 void (*presence_resp)(void *ctx, const u8 *src, u8 status, 812 const u8 *noa, size_t noa_len); 813 814 /** 815 * is_concurrent_session_active - Check whether concurrent session is 816 * active on other virtual interfaces 817 * @ctx: Callback context from cb_ctx 818 * Returns: 1 if concurrent session is active on other virtual interface 819 * or 0 if not. 820 */ 821 int (*is_concurrent_session_active)(void *ctx); 822 823 /** 824 * is_p2p_in_progress - Check whether P2P operation is in progress 825 * @ctx: Callback context from cb_ctx 826 * Returns: 1 if P2P operation (e.g., group formation) is in progress 827 * or 0 if not. 828 */ 829 int (*is_p2p_in_progress)(void *ctx); 830}; 831 832 833/* P2P module initialization/deinitialization */ 834 835/** 836 * p2p_init - Initialize P2P module 837 * @cfg: P2P module configuration 838 * Returns: Pointer to private data or %NULL on failure 839 * 840 * This function is used to initialize global P2P module context (one per 841 * device). The P2P module will keep a copy of the configuration data, so the 842 * caller does not need to maintain this structure. However, the callback 843 * functions and the context parameters to them must be kept available until 844 * the P2P module is deinitialized with p2p_deinit(). 845 */ 846struct p2p_data * p2p_init(const struct p2p_config *cfg); 847 848/** 849 * p2p_deinit - Deinitialize P2P module 850 * @p2p: P2P module context from p2p_init() 851 */ 852void p2p_deinit(struct p2p_data *p2p); 853 854/** 855 * p2p_flush - Flush P2P module state 856 * @p2p: P2P module context from p2p_init() 857 * 858 * This command removes the P2P module state like peer device entries. 859 */ 860void p2p_flush(struct p2p_data *p2p); 861 862/** 863 * p2p_unauthorize - Unauthorize the specified peer device 864 * @p2p: P2P module context from p2p_init() 865 * @addr: P2P peer entry to be unauthorized 866 * Returns: 0 on success, -1 on failure 867 * 868 * This command removes any connection authorization from the specified P2P 869 * peer device address. This can be used, e.g., to cancel effect of a previous 870 * p2p_authorize() or p2p_connect() call that has not yet resulted in completed 871 * GO Negotiation. 872 */ 873int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr); 874 875/** 876 * p2p_set_dev_name - Set device name 877 * @p2p: P2P module context from p2p_init() 878 * Returns: 0 on success, -1 on failure 879 * 880 * This function can be used to update the P2P module configuration with 881 * information that was not available at the time of the p2p_init() call. 882 */ 883int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name); 884 885int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer); 886int p2p_set_model_name(struct p2p_data *p2p, const char *model_name); 887int p2p_set_model_number(struct p2p_data *p2p, const char *model_number); 888int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number); 889 890void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods); 891void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid); 892 893/** 894 * p2p_set_pri_dev_type - Set primary device type 895 * @p2p: P2P module context from p2p_init() 896 * Returns: 0 on success, -1 on failure 897 * 898 * This function can be used to update the P2P module configuration with 899 * information that was not available at the time of the p2p_init() call. 900 */ 901int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type); 902 903/** 904 * p2p_set_sec_dev_types - Set secondary device types 905 * @p2p: P2P module context from p2p_init() 906 * Returns: 0 on success, -1 on failure 907 * 908 * This function can be used to update the P2P module configuration with 909 * information that was not available at the time of the p2p_init() call. 910 */ 911int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8], 912 size_t num_dev_types); 913 914int p2p_set_country(struct p2p_data *p2p, const char *country); 915 916 917/* Commands from upper layer management entity */ 918 919enum p2p_discovery_type { 920 P2P_FIND_START_WITH_FULL, 921 P2P_FIND_ONLY_SOCIAL, 922 P2P_FIND_PROGRESSIVE 923}; 924 925/** 926 * p2p_find - Start P2P Find (Device Discovery) 927 * @p2p: P2P module context from p2p_init() 928 * @timeout: Timeout for find operation in seconds or 0 for no timeout 929 * @type: Device Discovery type 930 * @num_req_dev_types: Number of requested device types 931 * @req_dev_types: Requested device types array, must be an array 932 * containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no 933 * requested device types. 934 * @dev_id: Device ID to search for or %NULL to find all devices 935 * @search_delay: Extra delay in milliseconds between search iterations 936 * Returns: 0 on success, -1 on failure 937 */ 938int p2p_find(struct p2p_data *p2p, unsigned int timeout, 939 enum p2p_discovery_type type, 940 unsigned int num_req_dev_types, const u8 *req_dev_types, 941 const u8 *dev_id, unsigned int search_delay); 942 943/** 944 * p2p_stop_find - Stop P2P Find (Device Discovery) 945 * @p2p: P2P module context from p2p_init() 946 */ 947void p2p_stop_find(struct p2p_data *p2p); 948 949/** 950 * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq 951 * @p2p: P2P module context from p2p_init() 952 * @freq: Frequency in MHz for next operation 953 * 954 * This is like p2p_stop_find(), but Listen state is not stopped if we are 955 * already on the same frequency. 956 */ 957void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq); 958 959/** 960 * p2p_listen - Start P2P Listen state for specified duration 961 * @p2p: P2P module context from p2p_init() 962 * @timeout: Listen state duration in milliseconds 963 * Returns: 0 on success, -1 on failure 964 * 965 * This function can be used to request the P2P module to keep the device 966 * discoverable on the listen channel for an extended set of time. At least in 967 * its current form, this is mainly used for testing purposes and may not be of 968 * much use for normal P2P operations. 969 */ 970int p2p_listen(struct p2p_data *p2p, unsigned int timeout); 971 972/** 973 * p2p_stop_listen - Stop P2P Listen 974 * @p2p: P2P module context from p2p_init() 975 */ 976void p2p_stop_listen(struct p2p_data *p2p); 977 978/** 979 * p2p_connect - Start P2P group formation (GO negotiation) 980 * @p2p: P2P module context from p2p_init() 981 * @peer_addr: MAC address of the peer P2P client 982 * @wps_method: WPS method to be used in provisioning 983 * @go_intent: Local GO intent value (1..15) 984 * @own_interface_addr: Intended interface address to use with the group 985 * @force_freq: The only allowed channel frequency in MHz or 0 986 * @persistent_group: Whether to create a persistent group (0 = no, 1 = 987 * persistent group without persistent reconnect, 2 = persistent group with 988 * persistent reconnect) 989 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate 990 * a new SSID 991 * @force_ssid_len: Length of $force_ssid buffer 992 * @pd_before_go_neg: Whether to send Provision Discovery prior to GO 993 * Negotiation as an interoperability workaround when initiating group 994 * formation 995 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 996 * force_freq == 0) 997 * Returns: 0 on success, -1 on failure 998 */ 999int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr, 1000 enum p2p_wps_method wps_method, 1001 int go_intent, const u8 *own_interface_addr, 1002 unsigned int force_freq, int persistent_group, 1003 const u8 *force_ssid, size_t force_ssid_len, 1004 int pd_before_go_neg, unsigned int pref_freq, u16 oob_pw_id); 1005 1006/** 1007 * p2p_authorize - Authorize P2P group formation (GO negotiation) 1008 * @p2p: P2P module context from p2p_init() 1009 * @peer_addr: MAC address of the peer P2P client 1010 * @wps_method: WPS method to be used in provisioning 1011 * @go_intent: Local GO intent value (1..15) 1012 * @own_interface_addr: Intended interface address to use with the group 1013 * @force_freq: The only allowed channel frequency in MHz or 0 1014 * @persistent_group: Whether to create a persistent group (0 = no, 1 = 1015 * persistent group without persistent reconnect, 2 = persistent group with 1016 * persistent reconnect) 1017 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate 1018 * a new SSID 1019 * @force_ssid_len: Length of $force_ssid buffer 1020 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 1021 * force_freq == 0) 1022 * Returns: 0 on success, -1 on failure 1023 * 1024 * This is like p2p_connect(), but the actual group negotiation is not 1025 * initiated automatically, i.e., the other end is expected to do that. 1026 */ 1027int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr, 1028 enum p2p_wps_method wps_method, 1029 int go_intent, const u8 *own_interface_addr, 1030 unsigned int force_freq, int persistent_group, 1031 const u8 *force_ssid, size_t force_ssid_len, 1032 unsigned int pref_freq, u16 oob_pw_id); 1033 1034/** 1035 * p2p_reject - Reject peer device (explicitly block connection attempts) 1036 * @p2p: P2P module context from p2p_init() 1037 * @peer_addr: MAC address of the peer P2P client 1038 * Returns: 0 on success, -1 on failure 1039 */ 1040int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr); 1041 1042/** 1043 * p2p_prov_disc_req - Send Provision Discovery Request 1044 * @p2p: P2P module context from p2p_init() 1045 * @peer_addr: MAC address of the peer P2P client 1046 * @config_methods: WPS Config Methods value (only one bit set) 1047 * @join: Whether this is used by a client joining an active group 1048 * @force_freq: Forced TX frequency for the frame (mainly for the join case) 1049 * @user_initiated_pd: Flag to indicate if initiated by user or not 1050 * Returns: 0 on success, -1 on failure 1051 * 1052 * This function can be used to request a discovered P2P peer to display a PIN 1053 * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us 1054 * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame 1055 * is transmitted once immediately and if no response is received, the frame 1056 * will be sent again whenever the target device is discovered during device 1057 * dsicovery (start with a p2p_find() call). Response from the peer is 1058 * indicated with the p2p_config::prov_disc_resp() callback. 1059 */ 1060int p2p_prov_disc_req(struct p2p_data *p2p, const u8 *peer_addr, 1061 u16 config_methods, int join, int force_freq, 1062 int user_initiated_pd); 1063 1064/** 1065 * p2p_sd_request - Schedule a service discovery query 1066 * @p2p: P2P module context from p2p_init() 1067 * @dst: Destination peer or %NULL to apply for all peers 1068 * @tlvs: P2P Service Query TLV(s) 1069 * Returns: Reference to the query or %NULL on failure 1070 * 1071 * Response to the query is indicated with the p2p_config::sd_response() 1072 * callback. 1073 */ 1074void * p2p_sd_request(struct p2p_data *p2p, const u8 *dst, 1075 const struct wpabuf *tlvs); 1076 1077#ifdef CONFIG_WIFI_DISPLAY 1078void * p2p_sd_request_wfd(struct p2p_data *p2p, const u8 *dst, 1079 const struct wpabuf *tlvs); 1080#endif /* CONFIG_WIFI_DISPLAY */ 1081 1082/** 1083 * p2p_sd_cancel_request - Cancel a pending service discovery query 1084 * @p2p: P2P module context from p2p_init() 1085 * @req: Query reference from p2p_sd_request() 1086 * Returns: 0 if request for cancelled; -1 if not found 1087 */ 1088int p2p_sd_cancel_request(struct p2p_data *p2p, void *req); 1089 1090/** 1091 * p2p_sd_response - Send response to a service discovery query 1092 * @p2p: P2P module context from p2p_init() 1093 * @freq: Frequency from p2p_config::sd_request() callback 1094 * @dst: Destination address from p2p_config::sd_request() callback 1095 * @dialog_token: Dialog token from p2p_config::sd_request() callback 1096 * @resp_tlvs: P2P Service Response TLV(s) 1097 * 1098 * This function is called as a response to the request indicated with 1099 * p2p_config::sd_request() callback. 1100 */ 1101void p2p_sd_response(struct p2p_data *p2p, int freq, const u8 *dst, 1102 u8 dialog_token, const struct wpabuf *resp_tlvs); 1103 1104/** 1105 * p2p_sd_service_update - Indicate a change in local services 1106 * @p2p: P2P module context from p2p_init() 1107 * 1108 * This function needs to be called whenever there is a change in availability 1109 * of the local services. This will increment the Service Update Indicator 1110 * value which will be used in SD Request and Response frames. 1111 */ 1112void p2p_sd_service_update(struct p2p_data *p2p); 1113 1114 1115enum p2p_invite_role { 1116 P2P_INVITE_ROLE_GO, 1117 P2P_INVITE_ROLE_ACTIVE_GO, 1118 P2P_INVITE_ROLE_CLIENT 1119}; 1120 1121/** 1122 * p2p_invite - Invite a P2P Device into a group 1123 * @p2p: P2P module context from p2p_init() 1124 * @peer: Device Address of the peer P2P Device 1125 * @role: Local role in the group 1126 * @bssid: Group BSSID or %NULL if not known 1127 * @ssid: Group SSID 1128 * @ssid_len: Length of ssid in octets 1129 * @force_freq: The only allowed channel frequency in MHz or 0 1130 * @go_dev_addr: Forced GO Device Address or %NULL if none 1131 * @persistent_group: Whether this is to reinvoke a persistent group 1132 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 1133 * force_freq == 0) 1134 * @dev_pw_id: Device Password ID from OOB Device Password (NFC) static handover 1135 * case or -1 if not used 1136 * Returns: 0 on success, -1 on failure 1137 */ 1138int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role, 1139 const u8 *bssid, const u8 *ssid, size_t ssid_len, 1140 unsigned int force_freq, const u8 *go_dev_addr, 1141 int persistent_group, unsigned int pref_freq, int dev_pw_id); 1142 1143/** 1144 * p2p_presence_req - Request GO presence 1145 * @p2p: P2P module context from p2p_init() 1146 * @go_interface_addr: GO P2P Interface Address 1147 * @own_interface_addr: Own P2P Interface Address for this group 1148 * @freq: Group operating frequence (in MHz) 1149 * @duration1: Preferred presence duration in microseconds 1150 * @interval1: Preferred presence interval in microseconds 1151 * @duration2: Acceptable presence duration in microseconds 1152 * @interval2: Acceptable presence interval in microseconds 1153 * Returns: 0 on success, -1 on failure 1154 * 1155 * If both duration and interval values are zero, the parameter pair is not 1156 * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0). 1157 */ 1158int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr, 1159 const u8 *own_interface_addr, unsigned int freq, 1160 u32 duration1, u32 interval1, u32 duration2, 1161 u32 interval2); 1162 1163/** 1164 * p2p_ext_listen - Set Extended Listen Timing 1165 * @p2p: P2P module context from p2p_init() 1166 * @freq: Group operating frequence (in MHz) 1167 * @period: Availability period in milliseconds (1-65535; 0 to disable) 1168 * @interval: Availability interval in milliseconds (1-65535; 0 to disable) 1169 * Returns: 0 on success, -1 on failure 1170 * 1171 * This function can be used to enable or disable (period = interval = 0) 1172 * Extended Listen Timing. When enabled, the P2P Device will become 1173 * discoverable (go into Listen State) every @interval milliseconds for at 1174 * least @period milliseconds. 1175 */ 1176int p2p_ext_listen(struct p2p_data *p2p, unsigned int period, 1177 unsigned int interval); 1178 1179/* Event notifications from upper layer management operations */ 1180 1181/** 1182 * p2p_wps_success_cb - Report successfully completed WPS provisioning 1183 * @p2p: P2P module context from p2p_init() 1184 * @mac_addr: Peer address 1185 * 1186 * This function is used to report successfully completed WPS provisioning 1187 * during group formation in both GO/Registrar and client/Enrollee roles. 1188 */ 1189void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr); 1190 1191/** 1192 * p2p_group_formation_failed - Report failed WPS provisioning 1193 * @p2p: P2P module context from p2p_init() 1194 * 1195 * This function is used to report failed group formation. This can happen 1196 * either due to failed WPS provisioning or due to 15 second timeout during 1197 * the provisioning phase. 1198 */ 1199void p2p_group_formation_failed(struct p2p_data *p2p); 1200 1201/** 1202 * p2p_get_provisioning_info - Get any stored provisioning info 1203 * @p2p: P2P module context from p2p_init() 1204 * @addr: Peer P2P Device Address 1205 * Returns: WPS provisioning information (WPS config method) or 0 if no 1206 * information is available 1207 * 1208 * This function is used to retrieve stored WPS provisioning info for the given 1209 * peer. 1210 */ 1211u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr); 1212 1213/** 1214 * p2p_clear_provisioning_info - Clear any stored provisioning info 1215 * @p2p: P2P module context from p2p_init() 1216 * @iface_addr: Peer P2P Device Address 1217 * 1218 * This function is used to clear stored WPS provisioning info for the given 1219 * peer. 1220 */ 1221void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr); 1222 1223 1224/* Event notifications from lower layer driver operations */ 1225 1226/** 1227 * enum p2p_probe_req_status 1228 * 1229 * @P2P_PREQ_MALFORMED: frame was not well-formed 1230 * @P2P_PREQ_NOT_LISTEN: device isn't in listen state, frame ignored 1231 * @P2P_PREQ_NOT_P2P: frame was not a P2P probe request 1232 * @P2P_PREQ_P2P_NOT_PROCESSED: frame was P2P but wasn't processed 1233 * @P2P_PREQ_P2P_PROCESSED: frame has been processed by P2P 1234 */ 1235enum p2p_probe_req_status { 1236 P2P_PREQ_MALFORMED, 1237 P2P_PREQ_NOT_LISTEN, 1238 P2P_PREQ_NOT_P2P, 1239 P2P_PREQ_NOT_PROCESSED, 1240 P2P_PREQ_PROCESSED 1241}; 1242 1243/** 1244 * p2p_probe_req_rx - Report reception of a Probe Request frame 1245 * @p2p: P2P module context from p2p_init() 1246 * @addr: Source MAC address 1247 * @dst: Destination MAC address if available or %NULL 1248 * @bssid: BSSID if available or %NULL 1249 * @ie: Information elements from the Probe Request frame body 1250 * @ie_len: Length of ie buffer in octets 1251 * Returns: value indicating the type and status of the probe request 1252 */ 1253enum p2p_probe_req_status 1254p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst, 1255 const u8 *bssid, const u8 *ie, size_t ie_len); 1256 1257/** 1258 * p2p_rx_action - Report received Action frame 1259 * @p2p: P2P module context from p2p_init() 1260 * @da: Destination address of the received Action frame 1261 * @sa: Source address of the received Action frame 1262 * @bssid: Address 3 of the received Action frame 1263 * @category: Category of the received Action frame 1264 * @data: Action frame body after the Category field 1265 * @len: Length of the data buffer in octets 1266 * @freq: Frequency (in MHz) on which the frame was received 1267 */ 1268void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa, 1269 const u8 *bssid, u8 category, 1270 const u8 *data, size_t len, int freq); 1271 1272/** 1273 * p2p_scan_res_handler - Indicate a P2P scan results 1274 * @p2p: P2P module context from p2p_init() 1275 * @bssid: BSSID of the scan result 1276 * @freq: Frequency of the channel on which the device was found in MHz 1277 * @rx_time: Time when the result was received 1278 * @level: Signal level (signal strength of the received Beacon/Probe Response 1279 * frame) 1280 * @ies: Pointer to IEs from the scan result 1281 * @ies_len: Length of the ies buffer 1282 * Returns: 0 to continue or 1 to stop scan result indication 1283 * 1284 * This function is called to indicate a scan result entry with P2P IE from a 1285 * scan requested with struct p2p_config::p2p_scan(). This can be called during 1286 * the actual scan process (i.e., whenever a new device is found) or as a 1287 * sequence of calls after the full scan has been completed. The former option 1288 * can result in optimized operations, but may not be supported by all 1289 * driver/firmware designs. The ies buffer need to include at least the P2P IE, 1290 * but it is recommended to include all IEs received from the device. The 1291 * caller does not need to check that the IEs contain a P2P IE before calling 1292 * this function since frames will be filtered internally if needed. 1293 * 1294 * This function will return 1 if it wants to stop scan result iteration (and 1295 * scan in general if it is still in progress). This is used to allow faster 1296 * start of a pending operation, e.g., to start a pending GO negotiation. 1297 */ 1298int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq, 1299 struct os_reltime *rx_time, int level, const u8 *ies, 1300 size_t ies_len); 1301 1302/** 1303 * p2p_scan_res_handled - Indicate end of scan results 1304 * @p2p: P2P module context from p2p_init() 1305 * 1306 * This function is called to indicate that all P2P scan results from a scan 1307 * have been reported with zero or more calls to p2p_scan_res_handler(). This 1308 * function must be called as a response to successful 1309 * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler() 1310 * calls stopped iteration. 1311 */ 1312void p2p_scan_res_handled(struct p2p_data *p2p); 1313 1314enum p2p_send_action_result { 1315 P2P_SEND_ACTION_SUCCESS /* Frame was send and acknowledged */, 1316 P2P_SEND_ACTION_NO_ACK /* Frame was sent, but not acknowledged */, 1317 P2P_SEND_ACTION_FAILED /* Frame was not sent due to a failure */ 1318}; 1319 1320/** 1321 * p2p_send_action_cb - Notify TX status of an Action frame 1322 * @p2p: P2P module context from p2p_init() 1323 * @freq: Channel frequency in MHz 1324 * @dst: Destination MAC address (Address 1) 1325 * @src: Source MAC address (Address 2) 1326 * @bssid: BSSID (Address 3) 1327 * @result: Result of the transmission attempt 1328 * 1329 * This function is used to indicate the result of an Action frame transmission 1330 * that was requested with struct p2p_config::send_action() callback. 1331 */ 1332void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst, 1333 const u8 *src, const u8 *bssid, 1334 enum p2p_send_action_result result); 1335 1336/** 1337 * p2p_listen_cb - Indicate the start of a requested Listen state 1338 * @p2p: P2P module context from p2p_init() 1339 * @freq: Listen channel frequency in MHz 1340 * @duration: Duration for the Listen state in milliseconds 1341 * 1342 * This function is used to indicate that a Listen state requested with 1343 * struct p2p_config::start_listen() callback has started. 1344 */ 1345void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq, 1346 unsigned int duration); 1347 1348/** 1349 * p2p_listen_end - Indicate the end of a requested Listen state 1350 * @p2p: P2P module context from p2p_init() 1351 * @freq: Listen channel frequency in MHz 1352 * Returns: 0 if no operations were started, 1 if an operation was started 1353 * 1354 * This function is used to indicate that a Listen state requested with 1355 * struct p2p_config::start_listen() callback has ended. 1356 */ 1357int p2p_listen_end(struct p2p_data *p2p, unsigned int freq); 1358 1359void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code, 1360 const u8 *ie, size_t ie_len); 1361 1362void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code, 1363 const u8 *ie, size_t ie_len); 1364 1365 1366/* Per-group P2P state for GO */ 1367 1368struct p2p_group; 1369 1370/** 1371 * struct p2p_group_config - P2P group configuration 1372 * 1373 * This configuration is provided to the P2P module during initialization of 1374 * the per-group information with p2p_group_init(). 1375 */ 1376struct p2p_group_config { 1377 /** 1378 * persistent_group - Whether the group is persistent 1379 * 0 = not a persistent group 1380 * 1 = persistent group without persistent reconnect 1381 * 2 = persistent group with persistent reconnect 1382 */ 1383 int persistent_group; 1384 1385 /** 1386 * interface_addr - P2P Interface Address of the group 1387 */ 1388 u8 interface_addr[ETH_ALEN]; 1389 1390 /** 1391 * max_clients - Maximum number of clients in the group 1392 */ 1393 unsigned int max_clients; 1394 1395 /** 1396 * ssid - Group SSID 1397 */ 1398 u8 ssid[32]; 1399 1400 /** 1401 * ssid_len - Length of SSID 1402 */ 1403 size_t ssid_len; 1404 1405 /** 1406 * freq - Operating channel of the group 1407 */ 1408 int freq; 1409 1410 /** 1411 * cb_ctx - Context to use with callback functions 1412 */ 1413 void *cb_ctx; 1414 1415 /** 1416 * ie_update - Notification of IE update 1417 * @ctx: Callback context from cb_ctx 1418 * @beacon_ies: P2P IE for Beacon frames or %NULL if no change 1419 * @proberesp_ies: P2P Ie for Probe Response frames 1420 * 1421 * P2P module uses this callback function to notify whenever the P2P IE 1422 * in Beacon or Probe Response frames should be updated based on group 1423 * events. 1424 * 1425 * The callee is responsible for freeing the returned buffer(s) with 1426 * wpabuf_free(). 1427 */ 1428 void (*ie_update)(void *ctx, struct wpabuf *beacon_ies, 1429 struct wpabuf *proberesp_ies); 1430 1431 /** 1432 * idle_update - Notification of changes in group idle state 1433 * @ctx: Callback context from cb_ctx 1434 * @idle: Whether the group is idle (no associated stations) 1435 */ 1436 void (*idle_update)(void *ctx, int idle); 1437}; 1438 1439/** 1440 * p2p_group_init - Initialize P2P group 1441 * @p2p: P2P module context from p2p_init() 1442 * @config: P2P group configuration (will be freed by p2p_group_deinit()) 1443 * Returns: Pointer to private data or %NULL on failure 1444 * 1445 * This function is used to initialize per-group P2P module context. Currently, 1446 * this is only used to manage GO functionality and P2P clients do not need to 1447 * create an instance of this per-group information. 1448 */ 1449struct p2p_group * p2p_group_init(struct p2p_data *p2p, 1450 struct p2p_group_config *config); 1451 1452/** 1453 * p2p_group_deinit - Deinitialize P2P group 1454 * @group: P2P group context from p2p_group_init() 1455 */ 1456void p2p_group_deinit(struct p2p_group *group); 1457 1458/** 1459 * p2p_group_notif_assoc - Notification of P2P client association with GO 1460 * @group: P2P group context from p2p_group_init() 1461 * @addr: Interface address of the P2P client 1462 * @ie: IEs from the (Re)association Request frame 1463 * @len: Length of the ie buffer in octets 1464 * Returns: 0 on success, -1 on failure 1465 */ 1466int p2p_group_notif_assoc(struct p2p_group *group, const u8 *addr, 1467 const u8 *ie, size_t len); 1468 1469/** 1470 * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response 1471 * @group: P2P group context from p2p_group_init() 1472 * @status: Status value (P2P_SC_SUCCESS if association succeeded) 1473 * Returns: P2P IE for (Re)association Response or %NULL on failure 1474 * 1475 * The caller is responsible for freeing the returned buffer with 1476 * wpabuf_free(). 1477 */ 1478struct wpabuf * p2p_group_assoc_resp_ie(struct p2p_group *group, u8 status); 1479 1480/** 1481 * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO 1482 * @group: P2P group context from p2p_group_init() 1483 * @addr: Interface address of the P2P client 1484 */ 1485void p2p_group_notif_disassoc(struct p2p_group *group, const u8 *addr); 1486 1487/** 1488 * p2p_group_notif_formation_done - Notification of completed group formation 1489 * @group: P2P group context from p2p_group_init() 1490 */ 1491void p2p_group_notif_formation_done(struct p2p_group *group); 1492 1493/** 1494 * p2p_group_notif_noa - Notification of NoA change 1495 * @group: P2P group context from p2p_group_init() 1496 * @noa: Notice of Absence attribute payload, %NULL if none 1497 * @noa_len: Length of noa buffer in octets 1498 * Returns: 0 on success, -1 on failure 1499 * 1500 * Notify the P2P group management about a new NoA contents. This will be 1501 * inserted into the P2P IEs in Beacon and Probe Response frames with rest of 1502 * the group information. 1503 */ 1504int p2p_group_notif_noa(struct p2p_group *group, const u8 *noa, 1505 size_t noa_len); 1506 1507/** 1508 * p2p_group_match_dev_type - Match device types in group with requested type 1509 * @group: P2P group context from p2p_group_init() 1510 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs) 1511 * Returns: 1 on match, 0 on mismatch 1512 * 1513 * This function can be used to match the Requested Device Type attribute in 1514 * WPS IE with the device types of a group member for deciding whether a GO 1515 * should reply to a Probe Request frame. Match will be reported if the WPS IE 1516 * is not requested any specific device type. 1517 */ 1518int p2p_group_match_dev_type(struct p2p_group *group, struct wpabuf *wps); 1519 1520/** 1521 * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id 1522 */ 1523int p2p_group_match_dev_id(struct p2p_group *group, struct wpabuf *p2p); 1524 1525/** 1526 * p2p_group_go_discover - Send GO Discoverability Request to a group client 1527 * @group: P2P group context from p2p_group_init() 1528 * Returns: 0 on success (frame scheduled); -1 if client was not found 1529 */ 1530int p2p_group_go_discover(struct p2p_group *group, const u8 *dev_id, 1531 const u8 *searching_dev, int rx_freq); 1532 1533 1534/* Generic helper functions */ 1535 1536/** 1537 * p2p_ie_text - Build text format description of P2P IE 1538 * @p2p_ie: P2P IE 1539 * @buf: Buffer for returning text 1540 * @end: Pointer to the end of the buf area 1541 * Returns: Number of octets written to the buffer or -1 on failure 1542 * 1543 * This function can be used to parse P2P IE contents into text format 1544 * field=value lines. 1545 */ 1546int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end); 1547 1548/** 1549 * p2p_scan_result_text - Build text format description of P2P IE 1550 * @ies: Information elements from scan results 1551 * @ies_len: ies buffer length in octets 1552 * @buf: Buffer for returning text 1553 * @end: Pointer to the end of the buf area 1554 * Returns: Number of octets written to the buffer or -1 on failure 1555 * 1556 * This function can be used to parse P2P IE contents into text format 1557 * field=value lines. 1558 */ 1559int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end); 1560 1561/** 1562 * p2p_parse_dev_addr_in_p2p_ie - Parse P2P Device Address from a concatenated 1563 * P2P IE 1564 * @p2p_ie: P2P IE 1565 * @dev_addr: Buffer for returning P2P Device Address 1566 * Returns: 0 on success or -1 if P2P Device Address could not be parsed 1567 */ 1568int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr); 1569 1570/** 1571 * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s) 1572 * @ies: Information elements from scan results 1573 * @ies_len: ies buffer length in octets 1574 * @dev_addr: Buffer for returning P2P Device Address 1575 * Returns: 0 on success or -1 if P2P Device Address could not be parsed 1576 */ 1577int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr); 1578 1579/** 1580 * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame 1581 * @p2p: P2P module context from p2p_init() 1582 * @bssid: BSSID 1583 * @buf: Buffer for writing the P2P IE 1584 * @len: Maximum buf length in octets 1585 * @p2p_group: Whether this is for association with a P2P GO 1586 * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none 1587 * Returns: Number of octets written into buf or -1 on failure 1588 */ 1589int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf, 1590 size_t len, int p2p_group, struct wpabuf *p2p_ie); 1591 1592/** 1593 * p2p_scan_ie - Build P2P IE for Probe Request 1594 * @p2p: P2P module context from p2p_init() 1595 * @ies: Buffer for writing P2P IE 1596 * @dev_id: Device ID to search for or %NULL for any 1597 */ 1598void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id); 1599 1600/** 1601 * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie 1602 * @p2p: P2P module context from p2p_init() 1603 * Returns: Number of octets that p2p_scan_ie() may add to the buffer 1604 */ 1605size_t p2p_scan_ie_buf_len(struct p2p_data *p2p); 1606 1607/** 1608 * p2p_go_params - Generate random P2P group parameters 1609 * @p2p: P2P module context from p2p_init() 1610 * @params: Buffer for parameters 1611 * Returns: 0 on success, -1 on failure 1612 */ 1613int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params); 1614 1615/** 1616 * p2p_get_group_capab - Get Group Capability from P2P IE data 1617 * @p2p_ie: P2P IE(s) contents 1618 * Returns: Group Capability 1619 */ 1620u8 p2p_get_group_capab(const struct wpabuf *p2p_ie); 1621 1622/** 1623 * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection 1624 * @p2p_ie: P2P IE(s) contents 1625 * Returns: 0 if cross connection is allow, 1 if not 1626 */ 1627int p2p_get_cross_connect_disallowed(const struct wpabuf *p2p_ie); 1628 1629/** 1630 * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data 1631 * @p2p_ie: P2P IE(s) contents 1632 * Returns: Pointer to P2P Device Address or %NULL if not included 1633 */ 1634const u8 * p2p_get_go_dev_addr(const struct wpabuf *p2p_ie); 1635 1636/** 1637 * p2p_get_peer_info - Get P2P peer information 1638 * @p2p: P2P module context from p2p_init() 1639 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer 1640 * @next: Whether to select the peer entry following the one indicated by addr 1641 * Returns: Pointer to peer info or %NULL if not found 1642 */ 1643const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p, 1644 const u8 *addr, int next); 1645 1646/** 1647 * p2p_get_peer_info_txt - Get internal P2P peer information in text format 1648 * @info: Pointer to P2P peer info from p2p_get_peer_info() 1649 * @buf: Buffer for returning text 1650 * @buflen: Maximum buffer length 1651 * Returns: Number of octets written to the buffer or -1 on failure 1652 * 1653 * Note: This information is internal to the P2P module and subject to change. 1654 * As such, this should not really be used by external programs for purposes 1655 * other than debugging. 1656 */ 1657int p2p_get_peer_info_txt(const struct p2p_peer_info *info, 1658 char *buf, size_t buflen); 1659 1660/** 1661 * p2p_peer_known - Check whether P2P peer is known 1662 * @p2p: P2P module context from p2p_init() 1663 * @addr: P2P Device Address of the peer 1664 * Returns: 1 if the specified device is in the P2P peer table or 0 if not 1665 */ 1666int p2p_peer_known(struct p2p_data *p2p, const u8 *addr); 1667 1668/** 1669 * p2p_set_client_discoverability - Set client discoverability capability 1670 * @p2p: P2P module context from p2p_init() 1671 * @enabled: Whether client discoverability will be enabled 1672 * 1673 * This function can be used to disable (and re-enable) client discoverability. 1674 * This capability is enabled by default and should not be disabled in normal 1675 * use cases, i.e., this is mainly for testing purposes. 1676 */ 1677void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled); 1678 1679/** 1680 * p2p_set_managed_oper - Set managed P2P Device operations capability 1681 * @p2p: P2P module context from p2p_init() 1682 * @enabled: Whether managed P2P Device operations will be enabled 1683 */ 1684void p2p_set_managed_oper(struct p2p_data *p2p, int enabled); 1685 1686int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel, 1687 u8 forced); 1688 1689u8 p2p_get_listen_channel(struct p2p_data *p2p); 1690 1691int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len); 1692 1693int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr, 1694 u8 *iface_addr); 1695int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr, 1696 u8 *dev_addr); 1697 1698void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr); 1699 1700/** 1701 * p2p_set_cross_connect - Set cross connection capability 1702 * @p2p: P2P module context from p2p_init() 1703 * @enabled: Whether cross connection will be enabled 1704 */ 1705void p2p_set_cross_connect(struct p2p_data *p2p, int enabled); 1706 1707int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr); 1708 1709/** 1710 * p2p_set_intra_bss_dist - Set intra BSS distribution 1711 * @p2p: P2P module context from p2p_init() 1712 * @enabled: Whether intra BSS distribution will be enabled 1713 */ 1714void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled); 1715 1716int p2p_channels_includes_freq(const struct p2p_channels *channels, 1717 unsigned int freq); 1718 1719/** 1720 * p2p_supported_freq - Check whether channel is supported for P2P 1721 * @p2p: P2P module context from p2p_init() 1722 * @freq: Channel frequency in MHz 1723 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 1724 */ 1725int p2p_supported_freq(struct p2p_data *p2p, unsigned int freq); 1726 1727/** 1728 * p2p_supported_freq_go - Check whether channel is supported for P2P GO operation 1729 * @p2p: P2P module context from p2p_init() 1730 * @freq: Channel frequency in MHz 1731 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 1732 */ 1733int p2p_supported_freq_go(struct p2p_data *p2p, unsigned int freq); 1734 1735/** 1736 * p2p_supported_freq_cli - Check whether channel is supported for P2P client operation 1737 * @p2p: P2P module context from p2p_init() 1738 * @freq: Channel frequency in MHz 1739 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 1740 */ 1741int p2p_supported_freq_cli(struct p2p_data *p2p, unsigned int freq); 1742 1743/** 1744 * p2p_get_pref_freq - Get channel from preferred channel list 1745 * @p2p: P2P module context from p2p_init() 1746 * @channels: List of channels 1747 * Returns: Preferred channel 1748 */ 1749unsigned int p2p_get_pref_freq(struct p2p_data *p2p, 1750 const struct p2p_channels *channels); 1751 1752void p2p_update_channel_list(struct p2p_data *p2p, 1753 const struct p2p_channels *chan, 1754 const struct p2p_channels *cli_chan); 1755 1756/** 1757 * p2p_set_best_channels - Update best channel information 1758 * @p2p: P2P module context from p2p_init() 1759 * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band 1760 * @freq_5: Frequency (MHz) of best channel in 5 GHz band 1761 * @freq_overall: Frequency (MHz) of best channel overall 1762 */ 1763void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5, 1764 int freq_overall); 1765 1766/** 1767 * p2p_set_own_freq_preference - Set own preference for channel 1768 * @p2p: P2P module context from p2p_init() 1769 * @freq: Frequency (MHz) of the preferred channel or 0 if no preference 1770 * 1771 * This function can be used to set a preference on the operating channel based 1772 * on frequencies used on the other virtual interfaces that share the same 1773 * radio. If non-zero, this is used to try to avoid multi-channel concurrency. 1774 */ 1775void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq); 1776 1777const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p); 1778 1779/** 1780 * p2p_get_group_num_members - Get number of members in group 1781 * @group: P2P group context from p2p_group_init() 1782 * Returns: Number of members in the group 1783 */ 1784unsigned int p2p_get_group_num_members(struct p2p_group *group); 1785 1786/** 1787 * p2p_iterate_group_members - Iterate group members 1788 * @group: P2P group context from p2p_group_init() 1789 * @next: iteration pointer, must be a pointer to a void * that is set to %NULL 1790 * on the first call and not modified later 1791 * Returns: A P2P Device Address for each call and %NULL for no more members 1792 */ 1793const u8 * p2p_iterate_group_members(struct p2p_group *group, void **next); 1794 1795/** 1796 * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group 1797 * @group: P2P group context from p2p_group_init() 1798 * @addr: P2P Interface Address of the client 1799 * Returns: P2P Device Address of the client if found or %NULL if no match 1800 * found 1801 */ 1802const u8 * p2p_group_get_dev_addr(struct p2p_group *group, const u8 *addr); 1803 1804/** 1805 * p2p_group_is_client_connected - Check whether a specific client is connected 1806 * @group: P2P group context from p2p_group_init() 1807 * @addr: P2P Device Address of the client 1808 * Returns: 1 if client is connected or 0 if not 1809 */ 1810int p2p_group_is_client_connected(struct p2p_group *group, const u8 *dev_addr); 1811 1812/** 1813 * p2p_group_get_config - Get the group configuration 1814 * @group: P2P group context from p2p_group_init() 1815 * Returns: The group configuration pointer 1816 */ 1817const struct p2p_group_config * p2p_group_get_config(struct p2p_group *group); 1818 1819/** 1820 * p2p_loop_on_all_groups - Run the given callback on all groups 1821 * @p2p: P2P module context from p2p_init() 1822 * @group_callback: The callback function pointer 1823 * @user_data: Some user data pointer which can be %NULL 1824 * 1825 * The group_callback function can stop the iteration by returning 0. 1826 */ 1827void p2p_loop_on_all_groups(struct p2p_data *p2p, 1828 int (*group_callback)(struct p2p_group *group, 1829 void *user_data), 1830 void *user_data); 1831 1832/** 1833 * p2p_get_peer_found - Get P2P peer info structure of a found peer 1834 * @p2p: P2P module context from p2p_init() 1835 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer 1836 * @next: Whether to select the peer entry following the one indicated by addr 1837 * Returns: The first P2P peer info available or %NULL if no such peer exists 1838 */ 1839const struct p2p_peer_info * 1840p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next); 1841 1842/** 1843 * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions 1844 * @p2p: P2P module context from p2p_init() 1845 */ 1846void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p); 1847 1848/** 1849 * p2p_add_wps_vendor_extension - Add a WPS vendor extension 1850 * @p2p: P2P module context from p2p_init() 1851 * @vendor_ext: The vendor extensions to add 1852 * Returns: 0 on success, -1 on failure 1853 * 1854 * The wpabuf structures in the array are owned by the P2P 1855 * module after this call. 1856 */ 1857int p2p_add_wps_vendor_extension(struct p2p_data *p2p, 1858 const struct wpabuf *vendor_ext); 1859 1860/** 1861 * p2p_set_oper_channel - Set the P2P operating channel 1862 * @p2p: P2P module context from p2p_init() 1863 * @op_reg_class: Operating regulatory class to set 1864 * @op_channel: operating channel to set 1865 * @cfg_op_channel : Whether op_channel is hardcoded in configuration 1866 * Returns: 0 on success, -1 on failure 1867 */ 1868int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel, 1869 int cfg_op_channel); 1870 1871/** 1872 * p2p_set_pref_chan - Set P2P preferred channel list 1873 * @p2p: P2P module context from p2p_init() 1874 * @num_pref_chan: Number of entries in pref_chan list 1875 * @pref_chan: Preferred channels or %NULL to remove preferences 1876 * Returns: 0 on success, -1 on failure 1877 */ 1878int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan, 1879 const struct p2p_channel *pref_chan); 1880 1881/** 1882 * p2p_set_no_go_freq - Set no GO channel ranges 1883 * @p2p: P2P module context from p2p_init() 1884 * @list: Channel ranges or %NULL to remove restriction 1885 * Returns: 0 on success, -1 on failure 1886 */ 1887int p2p_set_no_go_freq(struct p2p_data *p2p, 1888 const struct wpa_freq_range_list *list); 1889 1890/** 1891 * p2p_in_progress - Check whether a P2P operation is progress 1892 * @p2p: P2P module context from p2p_init() 1893 * Returns: 0 if P2P module is idle or 1 if an operation is in progress 1894 */ 1895int p2p_in_progress(struct p2p_data *p2p); 1896 1897const char * p2p_wps_method_text(enum p2p_wps_method method); 1898 1899/** 1900 * p2p_set_config_timeout - Set local config timeouts 1901 * @p2p: P2P module context from p2p_init() 1902 * @go_timeout: Time in 10 ms units it takes to start the GO mode 1903 * @client_timeout: Time in 10 ms units it takes to start the client mode 1904 */ 1905void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout, 1906 u8 client_timeout); 1907 1908int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie); 1909int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie); 1910int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie); 1911int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie); 1912int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie); 1913int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie); 1914int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie); 1915int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie); 1916int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem); 1917int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem); 1918int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p, 1919 const struct wpabuf *elem); 1920struct wpabuf * wifi_display_encaps(struct wpabuf *subelems); 1921 1922/** 1923 * p2p_set_disc_int - Set min/max discoverable interval for p2p_find 1924 * @p2p: P2P module context from p2p_init() 1925 * @min_disc_int: minDiscoverableInterval (in units of 100 TU); default 1 1926 * @max_disc_int: maxDiscoverableInterval (in units of 100 TU); default 3 1927 * @max_disc_tu: Maximum number of TUs (1.024 ms) for discoverable interval; or 1928 * -1 not to limit 1929 * Returns: 0 on success, or -1 on failure 1930 * 1931 * This function can be used to configure minDiscoverableInterval and 1932 * maxDiscoverableInterval parameters for the Listen state during device 1933 * discovery (p2p_find). A random number of 100 TU units is picked for each 1934 * Listen state iteration from [min_disc_int,max_disc_int] range. 1935 * 1936 * max_disc_tu can be used to futher limit the discoverable duration. However, 1937 * it should be noted that use of this parameter is not recommended since it 1938 * would not be compliant with the P2P specification. 1939 */ 1940int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int, 1941 int max_disc_tu); 1942 1943/** 1944 * p2p_get_state_txt - Get current P2P state for debug purposes 1945 * @p2p: P2P module context from p2p_init() 1946 * Returns: Name of the current P2P module state 1947 * 1948 * It should be noted that the P2P module state names are internal information 1949 * and subject to change at any point, i.e., this information should be used 1950 * mainly for debugging purposes. 1951 */ 1952const char * p2p_get_state_txt(struct p2p_data *p2p); 1953 1954struct wpabuf * p2p_build_nfc_handover_req(struct p2p_data *p2p, 1955 int client_freq, 1956 const u8 *go_dev_addr, 1957 const u8 *ssid, size_t ssid_len); 1958struct wpabuf * p2p_build_nfc_handover_sel(struct p2p_data *p2p, 1959 int client_freq, 1960 const u8 *go_dev_addr, 1961 const u8 *ssid, size_t ssid_len); 1962 1963struct p2p_nfc_params { 1964 int sel; 1965 const u8 *wsc_attr; 1966 size_t wsc_len; 1967 const u8 *p2p_attr; 1968 size_t p2p_len; 1969 1970 enum { 1971 NO_ACTION, JOIN_GROUP, AUTH_JOIN, INIT_GO_NEG, RESP_GO_NEG, 1972 BOTH_GO, PEER_CLIENT 1973 } next_step; 1974 struct p2p_peer_info *peer; 1975 u8 oob_dev_pw[WPS_OOB_PUBKEY_HASH_LEN + 2 + 1976 WPS_OOB_DEVICE_PASSWORD_LEN]; 1977 size_t oob_dev_pw_len; 1978 int go_freq; 1979 u8 go_dev_addr[ETH_ALEN]; 1980 u8 go_ssid[32]; 1981 size_t go_ssid_len; 1982}; 1983 1984int p2p_process_nfc_connection_handover(struct p2p_data *p2p, 1985 struct p2p_nfc_params *params); 1986 1987void p2p_set_authorized_oob_dev_pw_id(struct p2p_data *p2p, u16 dev_pw_id, 1988 int go_intent, 1989 const u8 *own_interface_addr); 1990 1991int p2p_set_passphrase_len(struct p2p_data *p2p, unsigned int len); 1992 1993void p2p_loop_on_known_peers(struct p2p_data *p2p, 1994 void (*peer_callback)(struct p2p_peer_info *peer, 1995 void *user_data), 1996 void *user_data); 1997 1998#endif /* P2P_H */ 1999