p2p.h revision e0e48dc666fb14a7bb60264ca87463ba7bc1fe0b
1/* 2 * Wi-Fi Direct - P2P module 3 * Copyright (c) 2009-2010, Atheros Communications 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 */ 8 9#ifndef P2P_H 10#define P2P_H 11 12/** 13 * P2P_MAX_REG_CLASSES - Maximum number of regulatory classes 14 */ 15#define P2P_MAX_REG_CLASSES 10 16 17/** 18 * P2P_MAX_REG_CLASS_CHANNELS - Maximum number of channels per regulatory class 19 */ 20#define P2P_MAX_REG_CLASS_CHANNELS 20 21 22/** 23 * struct p2p_channels - List of supported channels 24 */ 25struct p2p_channels { 26 /** 27 * struct p2p_reg_class - Supported regulatory class 28 */ 29 struct p2p_reg_class { 30 /** 31 * reg_class - Regulatory class (IEEE 802.11-2007, Annex J) 32 */ 33 u8 reg_class; 34 35 /** 36 * channel - Supported channels 37 */ 38 u8 channel[P2P_MAX_REG_CLASS_CHANNELS]; 39 40 /** 41 * channels - Number of channel entries in use 42 */ 43 size_t channels; 44 } reg_class[P2P_MAX_REG_CLASSES]; 45 46 /** 47 * reg_classes - Number of reg_class entries in use 48 */ 49 size_t reg_classes; 50}; 51 52enum p2p_wps_method { 53 WPS_NOT_READY, WPS_PIN_DISPLAY, WPS_PIN_KEYPAD, WPS_PBC 54}; 55 56/** 57 * struct p2p_go_neg_results - P2P Group Owner Negotiation results 58 */ 59struct p2p_go_neg_results { 60 /** 61 * status - Negotiation result (Status Code) 62 * 63 * 0 (P2P_SC_SUCCESS) indicates success. Non-zero values indicate 64 * failed negotiation. 65 */ 66 int status; 67 68 /** 69 * role_go - Whether local end is Group Owner 70 */ 71 int role_go; 72 73 /** 74 * freq - Frequency of the group operational channel in MHz 75 */ 76 int freq; 77 78 int ht40; 79 80 int vht; 81 82 /** 83 * ssid - SSID of the group 84 */ 85 u8 ssid[32]; 86 87 /** 88 * ssid_len - Length of SSID in octets 89 */ 90 size_t ssid_len; 91 92 /** 93 * psk - WPA pre-shared key (256 bits) (GO only) 94 */ 95 u8 psk[32]; 96 97 /** 98 * psk_set - Whether PSK field is configured (GO only) 99 */ 100 int psk_set; 101 102 /** 103 * passphrase - WPA2-Personal passphrase for the group (GO only) 104 */ 105 char passphrase[64]; 106 107 /** 108 * peer_device_addr - P2P Device Address of the peer 109 */ 110 u8 peer_device_addr[ETH_ALEN]; 111 112 /** 113 * peer_interface_addr - P2P Interface Address of the peer 114 */ 115 u8 peer_interface_addr[ETH_ALEN]; 116 117 /** 118 * wps_method - WPS method to be used during provisioning 119 */ 120 enum p2p_wps_method wps_method; 121 122#define P2P_MAX_CHANNELS 50 123 124 /** 125 * freq_list - Zero-terminated list of possible operational channels 126 */ 127 int freq_list[P2P_MAX_CHANNELS]; 128 129 /** 130 * persistent_group - Whether the group should be made persistent 131 * 0 = not persistent 132 * 1 = persistent group without persistent reconnect 133 * 2 = persistent group with persistent reconnect 134 */ 135 int persistent_group; 136 137 /** 138 * peer_config_timeout - Peer configuration timeout (in 10 msec units) 139 */ 140 unsigned int peer_config_timeout; 141}; 142 143struct p2p_data; 144 145enum p2p_scan_type { 146 P2P_SCAN_SOCIAL, 147 P2P_SCAN_FULL, 148 P2P_SCAN_SOCIAL_PLUS_ONE 149}; 150 151#define P2P_MAX_WPS_VENDOR_EXT 10 152 153/** 154 * struct p2p_peer_info - P2P peer information 155 */ 156struct p2p_peer_info { 157 /** 158 * p2p_device_addr - P2P Device Address of the peer 159 */ 160 u8 p2p_device_addr[ETH_ALEN]; 161 162 /** 163 * pri_dev_type - Primary Device Type 164 */ 165 u8 pri_dev_type[8]; 166 167 /** 168 * device_name - Device Name (0..32 octets encoded in UTF-8) 169 */ 170 char device_name[33]; 171 172 /** 173 * manufacturer - Manufacturer (0..64 octets encoded in UTF-8) 174 */ 175 char manufacturer[65]; 176 177 /** 178 * model_name - Model Name (0..32 octets encoded in UTF-8) 179 */ 180 char model_name[33]; 181 182 /** 183 * model_number - Model Number (0..32 octets encoded in UTF-8) 184 */ 185 char model_number[33]; 186 187 /** 188 * serial_number - Serial Number (0..32 octets encoded in UTF-8) 189 */ 190 char serial_number[33]; 191 192 /** 193 * level - Signal level 194 */ 195 int level; 196 197 /** 198 * config_methods - WPS Configuration Methods 199 */ 200 u16 config_methods; 201 202 /** 203 * dev_capab - Device Capabilities 204 */ 205 u8 dev_capab; 206 207 /** 208 * group_capab - Group Capabilities 209 */ 210 u8 group_capab; 211 212 /** 213 * wps_sec_dev_type_list - WPS secondary device type list 214 * 215 * This list includes from 0 to 16 Secondary Device Types as indicated 216 * by wps_sec_dev_type_list_len (8 * number of types). 217 */ 218 u8 wps_sec_dev_type_list[128]; 219 220 /** 221 * wps_sec_dev_type_list_len - Length of secondary device type list 222 */ 223 size_t wps_sec_dev_type_list_len; 224 225 struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT]; 226 227 /** 228 * wfd_subelems - Wi-Fi Display subelements from WFD IE(s) 229 */ 230 struct wpabuf *wfd_subelems; 231}; 232 233enum p2p_prov_disc_status { 234 P2P_PROV_DISC_SUCCESS, 235 P2P_PROV_DISC_TIMEOUT, 236 P2P_PROV_DISC_REJECTED, 237 P2P_PROV_DISC_TIMEOUT_JOIN, 238}; 239 240struct p2p_channel { 241 u8 op_class; 242 u8 chan; 243}; 244 245/** 246 * struct p2p_config - P2P configuration 247 * 248 * This configuration is provided to the P2P module during initialization with 249 * p2p_init(). 250 */ 251struct p2p_config { 252 /** 253 * country - Country code to use in P2P operations 254 */ 255 char country[3]; 256 257 /** 258 * reg_class - Regulatory class for own listen channel 259 */ 260 u8 reg_class; 261 262 /** 263 * channel - Own listen channel 264 */ 265 u8 channel; 266 267 /** 268 * Regulatory class for own operational channel 269 */ 270 u8 op_reg_class; 271 272 /** 273 * op_channel - Own operational channel 274 */ 275 u8 op_channel; 276 277 /** 278 * cfg_op_channel - Whether op_channel is hardcoded in configuration 279 */ 280 u8 cfg_op_channel; 281 282 /** 283 * channels - Own supported regulatory classes and channels 284 * 285 * List of supposerted channels per regulatory class. The regulatory 286 * classes are defined in IEEE Std 802.11-2007 Annex J and the 287 * numbering of the clases depends on the configured country code. 288 */ 289 struct p2p_channels channels; 290 291 /** 292 * cli_channels - Additional client channels 293 * 294 * This list of channels (if any) will be used when advertising local 295 * channels during GO Negotiation or Invitation for the cases where the 296 * local end may become the client. This may allow the peer to become a 297 * GO on additional channels if it supports these options. The main use 298 * case for this is to include passive-scan channels on devices that may 299 * not know their current location and have configured most channels to 300 * not allow initiation of radition (i.e., another device needs to take 301 * master responsibilities). 302 */ 303 struct p2p_channels cli_channels; 304 305 /** 306 * num_pref_chan - Number of pref_chan entries 307 */ 308 unsigned int num_pref_chan; 309 310 /** 311 * pref_chan - Preferred channels for GO Negotiation 312 */ 313 struct p2p_channel *pref_chan; 314 315 /** 316 * pri_dev_type - Primary Device Type (see WPS) 317 */ 318 u8 pri_dev_type[8]; 319 320 /** 321 * P2P_SEC_DEVICE_TYPES - Maximum number of secondary device types 322 */ 323#define P2P_SEC_DEVICE_TYPES 5 324 325 /** 326 * sec_dev_type - Optional secondary device types 327 */ 328 u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8]; 329 330 /** 331 * num_sec_dev_types - Number of sec_dev_type entries 332 */ 333 size_t num_sec_dev_types; 334 335 /** 336 * dev_addr - P2P Device Address 337 */ 338 u8 dev_addr[ETH_ALEN]; 339 340 /** 341 * dev_name - Device Name 342 */ 343 char *dev_name; 344 345 char *manufacturer; 346 char *model_name; 347 char *model_number; 348 char *serial_number; 349 350 u8 uuid[16]; 351 u16 config_methods; 352 353 /** 354 * concurrent_operations - Whether concurrent operations are supported 355 */ 356 int concurrent_operations; 357 358 /** 359 * max_peers - Maximum number of discovered peers to remember 360 * 361 * If more peers are discovered, older entries will be removed to make 362 * room for the new ones. 363 */ 364 size_t max_peers; 365 366 /** 367 * p2p_intra_bss - Intra BSS communication is supported 368 */ 369 int p2p_intra_bss; 370 371 /** 372 * ssid_postfix - Postfix data to add to the SSID 373 * 374 * This data will be added to the end of the SSID after the 375 * DIRECT-<random two octets> prefix. 376 */ 377 u8 ssid_postfix[32 - 9]; 378 379 /** 380 * ssid_postfix_len - Length of the ssid_postfix data 381 */ 382 size_t ssid_postfix_len; 383 384 /** 385 * max_listen - Maximum listen duration in ms 386 */ 387 unsigned int max_listen; 388 389 /** 390 * cb_ctx - Context to use with callback functions 391 */ 392 void *cb_ctx; 393 394 /** 395 * debug_print - Debug print 396 * @ctx: Callback context from cb_ctx 397 * @level: Debug verbosity level (MSG_*) 398 * @msg: Debug message 399 */ 400 void (*debug_print)(void *ctx, int level, const char *msg); 401 402 403 /* Callbacks to request lower layer driver operations */ 404 405 /** 406 * p2p_scan - Request a P2P scan/search 407 * @ctx: Callback context from cb_ctx 408 * @type: Scan type 409 * @freq: Specific frequency (MHz) to scan or 0 for no restriction 410 * @num_req_dev_types: Number of requested device types 411 * @req_dev_types: Array containing requested device types 412 * @dev_id: Device ID to search for or %NULL to find all devices 413 * @pw_id: Device Password ID 414 * Returns: 0 on success, -1 on failure 415 * 416 * This callback function is used to request a P2P scan or search 417 * operation to be completed. Type type argument specifies which type 418 * of scan is to be done. @P2P_SCAN_SOCIAL indicates that only the 419 * social channels (1, 6, 11) should be scanned. @P2P_SCAN_FULL 420 * indicates that all channels are to be scanned. 421 * @P2P_SCAN_SOCIAL_PLUS_ONE request scan of all the social channels 422 * plus one extra channel specified by freq. 423 * 424 * The full scan is used for the initial scan to find group owners from 425 * all. The other types are used during search phase scan of the social 426 * channels (with potential variation if the Listen channel of the 427 * target peer is known or if other channels are scanned in steps). 428 * 429 * The scan results are returned after this call by calling 430 * p2p_scan_res_handler() for each scan result that has a P2P IE and 431 * then calling p2p_scan_res_handled() to indicate that all scan 432 * results have been indicated. 433 */ 434 int (*p2p_scan)(void *ctx, enum p2p_scan_type type, int freq, 435 unsigned int num_req_dev_types, 436 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id); 437 438 /** 439 * send_probe_resp - Transmit a Probe Response frame 440 * @ctx: Callback context from cb_ctx 441 * @buf: Probe Response frame (including the header and body) 442 * Returns: 0 on success, -1 on failure 443 * 444 * This function is used to reply to Probe Request frames that were 445 * indicated with a call to p2p_probe_req_rx(). The response is to be 446 * sent on the same channel or to be dropped if the driver is not 447 * anymore listening to Probe Request frames. 448 * 449 * Alternatively, the responsibility for building the Probe Response 450 * frames in Listen state may be in another system component in which 451 * case this function need to be implemented (i.e., the function 452 * pointer can be %NULL). The WPS and P2P IEs to be added for Probe 453 * Response frames in such a case are available from the 454 * start_listen() callback. It should be noted that the received Probe 455 * Request frames must be indicated by calling p2p_probe_req_rx() even 456 * if this send_probe_resp() is not used. 457 */ 458 int (*send_probe_resp)(void *ctx, const struct wpabuf *buf); 459 460 /** 461 * send_action - Transmit an Action frame 462 * @ctx: Callback context from cb_ctx 463 * @freq: Frequency in MHz for the channel on which to transmit 464 * @dst: Destination MAC address (Address 1) 465 * @src: Source MAC address (Address 2) 466 * @bssid: BSSID (Address 3) 467 * @buf: Frame body (starting from Category field) 468 * @len: Length of buf in octets 469 * @wait_time: How many msec to wait for a response frame 470 * Returns: 0 on success, -1 on failure 471 * 472 * The Action frame may not be transmitted immediately and the status 473 * of the transmission must be reported by calling 474 * p2p_send_action_cb() once the frame has either been transmitted or 475 * it has been dropped due to excessive retries or other failure to 476 * transmit. 477 */ 478 int (*send_action)(void *ctx, unsigned int freq, const u8 *dst, 479 const u8 *src, const u8 *bssid, const u8 *buf, 480 size_t len, unsigned int wait_time); 481 482 /** 483 * send_action_done - Notify that Action frame sequence was completed 484 * @ctx: Callback context from cb_ctx 485 * 486 * This function is called when the Action frame sequence that was 487 * started with send_action() has been completed, i.e., when there is 488 * no need to wait for a response from the destination peer anymore. 489 */ 490 void (*send_action_done)(void *ctx); 491 492 /** 493 * start_listen - Start Listen state 494 * @ctx: Callback context from cb_ctx 495 * @freq: Frequency of the listen channel in MHz 496 * @duration: Duration for the Listen state in milliseconds 497 * @probe_resp_ie: IE(s) to be added to Probe Response frames 498 * Returns: 0 on success, -1 on failure 499 * 500 * This Listen state may not start immediately since the driver may 501 * have other pending operations to complete first. Once the Listen 502 * state has started, p2p_listen_cb() must be called to notify the P2P 503 * module. Once the Listen state is stopped, p2p_listen_end() must be 504 * called to notify the P2P module that the driver is not in the Listen 505 * state anymore. 506 * 507 * If the send_probe_resp() is not used for generating the response, 508 * the IEs from probe_resp_ie need to be added to the end of the Probe 509 * Response frame body. If send_probe_resp() is used, the probe_resp_ie 510 * information can be ignored. 511 */ 512 int (*start_listen)(void *ctx, unsigned int freq, 513 unsigned int duration, 514 const struct wpabuf *probe_resp_ie); 515 /** 516 * stop_listen - Stop Listen state 517 * @ctx: Callback context from cb_ctx 518 * 519 * This callback can be used to stop a Listen state operation that was 520 * previously requested with start_listen(). 521 */ 522 void (*stop_listen)(void *ctx); 523 524 /** 525 * get_noa - Get current Notice of Absence attribute payload 526 * @ctx: Callback context from cb_ctx 527 * @interface_addr: P2P Interface Address of the GO 528 * @buf: Buffer for returning NoA 529 * @buf_len: Buffer length in octets 530 * Returns: Number of octets used in buf, 0 to indicate no NoA is being 531 * advertized, or -1 on failure 532 * 533 * This function is used to fetch the current Notice of Absence 534 * attribute value from GO. 535 */ 536 int (*get_noa)(void *ctx, const u8 *interface_addr, u8 *buf, 537 size_t buf_len); 538 539 /* Callbacks to notify events to upper layer management entity */ 540 541 /** 542 * dev_found - Notification of a found P2P Device 543 * @ctx: Callback context from cb_ctx 544 * @addr: Source address of the message triggering this notification 545 * @info: P2P peer information 546 * @new_device: Inform if the peer is newly found 547 * 548 * This callback is used to notify that a new P2P Device has been 549 * found. This may happen, e.g., during Search state based on scan 550 * results or during Listen state based on receive Probe Request and 551 * Group Owner Negotiation Request. 552 */ 553 void (*dev_found)(void *ctx, const u8 *addr, 554 const struct p2p_peer_info *info, 555 int new_device); 556 557 /** 558 * dev_lost - Notification of a lost P2P Device 559 * @ctx: Callback context from cb_ctx 560 * @dev_addr: P2P Device Address of the lost P2P Device 561 * 562 * This callback is used to notify that a P2P Device has been deleted. 563 */ 564 void (*dev_lost)(void *ctx, const u8 *dev_addr); 565 566 /** 567 * find_stopped - Notification of a p2p_find operation stopping 568 * @ctx: Callback context from cb_ctx 569 */ 570 void (*find_stopped)(void *ctx); 571 572 /** 573 * go_neg_req_rx - Notification of a receive GO Negotiation Request 574 * @ctx: Callback context from cb_ctx 575 * @src: Source address of the message triggering this notification 576 * @dev_passwd_id: WPS Device Password ID 577 * 578 * This callback is used to notify that a P2P Device is requesting 579 * group owner negotiation with us, but we do not have all the 580 * necessary information to start GO Negotiation. This indicates that 581 * the local user has not authorized the connection yet by providing a 582 * PIN or PBC button press. This information can be provided with a 583 * call to p2p_connect(). 584 */ 585 void (*go_neg_req_rx)(void *ctx, const u8 *src, u16 dev_passwd_id); 586 587 /** 588 * go_neg_completed - Notification of GO Negotiation results 589 * @ctx: Callback context from cb_ctx 590 * @res: GO Negotiation results 591 * 592 * This callback is used to notify that Group Owner Negotiation has 593 * been completed. Non-zero struct p2p_go_neg_results::status indicates 594 * failed negotiation. In case of success, this function is responsible 595 * for creating a new group interface (or using the existing interface 596 * depending on driver features), setting up the group interface in 597 * proper mode based on struct p2p_go_neg_results::role_go and 598 * initializing WPS provisioning either as a Registrar (if GO) or as an 599 * Enrollee. Successful WPS provisioning must be indicated by calling 600 * p2p_wps_success_cb(). The callee is responsible for timing out group 601 * formation if WPS provisioning cannot be completed successfully 602 * within 15 seconds. 603 */ 604 void (*go_neg_completed)(void *ctx, struct p2p_go_neg_results *res); 605 606 /** 607 * sd_request - Callback on Service Discovery Request 608 * @ctx: Callback context from cb_ctx 609 * @freq: Frequency (in MHz) of the channel 610 * @sa: Source address of the request 611 * @dialog_token: Dialog token 612 * @update_indic: Service Update Indicator from the source of request 613 * @tlvs: P2P Service Request TLV(s) 614 * @tlvs_len: Length of tlvs buffer in octets 615 * 616 * This callback is used to indicate reception of a service discovery 617 * request. Response to the query must be indicated by calling 618 * p2p_sd_response() with the context information from the arguments to 619 * this callback function. 620 * 621 * This callback handler can be set to %NULL to indicate that service 622 * discovery is not supported. 623 */ 624 void (*sd_request)(void *ctx, int freq, const u8 *sa, u8 dialog_token, 625 u16 update_indic, const u8 *tlvs, size_t tlvs_len); 626 627 /** 628 * sd_response - Callback on Service Discovery Response 629 * @ctx: Callback context from cb_ctx 630 * @sa: Source address of the request 631 * @update_indic: Service Update Indicator from the source of response 632 * @tlvs: P2P Service Response TLV(s) 633 * @tlvs_len: Length of tlvs buffer in octets 634 * 635 * This callback is used to indicate reception of a service discovery 636 * response. This callback handler can be set to %NULL if no service 637 * discovery requests are used. The information provided with this call 638 * is replies to the queries scheduled with p2p_sd_request(). 639 */ 640 void (*sd_response)(void *ctx, const u8 *sa, u16 update_indic, 641 const u8 *tlvs, size_t tlvs_len); 642 643 /** 644 * prov_disc_req - Callback on Provisiong Discovery Request 645 * @ctx: Callback context from cb_ctx 646 * @peer: Source address of the request 647 * @config_methods: Requested WPS Config Method 648 * @dev_addr: P2P Device Address of the found P2P Device 649 * @pri_dev_type: Primary Device Type 650 * @dev_name: Device Name 651 * @supp_config_methods: Supported configuration Methods 652 * @dev_capab: Device Capabilities 653 * @group_capab: Group Capabilities 654 * @group_id: P2P Group ID (or %NULL if not included) 655 * @group_id_len: Length of P2P Group ID 656 * 657 * This callback is used to indicate reception of a Provision Discovery 658 * Request frame that the P2P module accepted. 659 */ 660 void (*prov_disc_req)(void *ctx, const u8 *peer, u16 config_methods, 661 const u8 *dev_addr, const u8 *pri_dev_type, 662 const char *dev_name, u16 supp_config_methods, 663 u8 dev_capab, u8 group_capab, 664 const u8 *group_id, size_t group_id_len); 665 666 /** 667 * prov_disc_resp - Callback on Provisiong Discovery Response 668 * @ctx: Callback context from cb_ctx 669 * @peer: Source address of the response 670 * @config_methods: Value from p2p_prov_disc_req() or 0 on failure 671 * 672 * This callback is used to indicate reception of a Provision Discovery 673 * Response frame for a pending request scheduled with 674 * p2p_prov_disc_req(). This callback handler can be set to %NULL if 675 * provision discovery is not used. 676 */ 677 void (*prov_disc_resp)(void *ctx, const u8 *peer, u16 config_methods); 678 679 /** 680 * prov_disc_fail - Callback on Provision Discovery failure 681 * @ctx: Callback context from cb_ctx 682 * @peer: Source address of the response 683 * @status: Cause of failure, will not be %P2P_PROV_DISC_SUCCESS 684 * 685 * This callback is used to indicate either a failure or no response 686 * to an earlier provision discovery request. 687 * 688 * This callback handler can be set to %NULL if provision discovery 689 * is not used or failures do not need to be indicated. 690 */ 691 void (*prov_disc_fail)(void *ctx, const u8 *peer, 692 enum p2p_prov_disc_status status); 693 694 /** 695 * invitation_process - Optional callback for processing Invitations 696 * @ctx: Callback context from cb_ctx 697 * @sa: Source address of the Invitation Request 698 * @bssid: P2P Group BSSID from the request or %NULL if not included 699 * @go_dev_addr: GO Device Address from P2P Group ID 700 * @ssid: SSID from P2P Group ID 701 * @ssid_len: Length of ssid buffer in octets 702 * @go: Variable for returning whether the local end is GO in the group 703 * @group_bssid: Buffer for returning P2P Group BSSID (if local end GO) 704 * @force_freq: Variable for returning forced frequency for the group 705 * @persistent_group: Whether this is an invitation to reinvoke a 706 * persistent group (instead of invitation to join an active 707 * group) 708 * @channels: Available operating channels for the group 709 * Returns: Status code (P2P_SC_*) 710 * 711 * This optional callback can be used to implement persistent reconnect 712 * by allowing automatic restarting of persistent groups without user 713 * interaction. If this callback is not implemented (i.e., is %NULL), 714 * the received Invitation Request frames are replied with 715 * %P2P_SC_REQ_RECEIVED status and indicated to upper layer with the 716 * invitation_result() callback. 717 * 718 * If the requested parameters are acceptable and the group is known, 719 * %P2P_SC_SUCCESS may be returned. If the requested group is unknown, 720 * %P2P_SC_FAIL_UNKNOWN_GROUP should be returned. %P2P_SC_REQ_RECEIVED 721 * can be returned if there is not enough data to provide immediate 722 * response, i.e., if some sort of user interaction is needed. The 723 * invitation_received() callback will be called in that case 724 * immediately after this call. 725 */ 726 u8 (*invitation_process)(void *ctx, const u8 *sa, const u8 *bssid, 727 const u8 *go_dev_addr, const u8 *ssid, 728 size_t ssid_len, int *go, u8 *group_bssid, 729 int *force_freq, int persistent_group, 730 const struct p2p_channels *channels); 731 732 /** 733 * invitation_received - Callback on Invitation Request RX 734 * @ctx: Callback context from cb_ctx 735 * @sa: Source address of the Invitation Request 736 * @bssid: P2P Group BSSID or %NULL if not received 737 * @ssid: SSID of the group 738 * @ssid_len: Length of ssid in octets 739 * @go_dev_addr: GO Device Address 740 * @status: Response Status 741 * @op_freq: Operational frequency for the group 742 * 743 * This callback is used to indicate sending of an Invitation Response 744 * for a received Invitation Request. If status == 0 (success), the 745 * upper layer code is responsible for starting the group. status == 1 746 * indicates need to get user authorization for the group. Other status 747 * values indicate that the invitation request was rejected. 748 */ 749 void (*invitation_received)(void *ctx, const u8 *sa, const u8 *bssid, 750 const u8 *ssid, size_t ssid_len, 751 const u8 *go_dev_addr, u8 status, 752 int op_freq); 753 754 /** 755 * invitation_result - Callback on Invitation result 756 * @ctx: Callback context from cb_ctx 757 * @status: Negotiation result (Status Code) 758 * @bssid: P2P Group BSSID or %NULL if not received 759 * @channels: Available operating channels for the group 760 * @addr: Peer address 761 * @freq: Frequency (in MHz) indicated during invitation or 0 762 * 763 * This callback is used to indicate result of an Invitation procedure 764 * started with a call to p2p_invite(). The indicated status code is 765 * the value received from the peer in Invitation Response with 0 766 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a 767 * local failure in transmitting the Invitation Request. 768 */ 769 void (*invitation_result)(void *ctx, int status, const u8 *bssid, 770 const struct p2p_channels *channels, 771 const u8 *addr, int freq); 772 773 /** 774 * go_connected - Check whether we are connected to a GO 775 * @ctx: Callback context from cb_ctx 776 * @dev_addr: P2P Device Address of a GO 777 * Returns: 1 if we are connected as a P2P client to the specified GO 778 * or 0 if not. 779 */ 780 int (*go_connected)(void *ctx, const u8 *dev_addr); 781}; 782 783 784/* P2P module initialization/deinitialization */ 785 786/** 787 * p2p_init - Initialize P2P module 788 * @cfg: P2P module configuration 789 * Returns: Pointer to private data or %NULL on failure 790 * 791 * This function is used to initialize global P2P module context (one per 792 * device). The P2P module will keep a copy of the configuration data, so the 793 * caller does not need to maintain this structure. However, the callback 794 * functions and the context parameters to them must be kept available until 795 * the P2P module is deinitialized with p2p_deinit(). 796 */ 797struct p2p_data * p2p_init(const struct p2p_config *cfg); 798 799/** 800 * p2p_deinit - Deinitialize P2P module 801 * @p2p: P2P module context from p2p_init() 802 */ 803void p2p_deinit(struct p2p_data *p2p); 804 805/** 806 * p2p_flush - Flush P2P module state 807 * @p2p: P2P module context from p2p_init() 808 * 809 * This command removes the P2P module state like peer device entries. 810 */ 811void p2p_flush(struct p2p_data *p2p); 812 813/** 814 * p2p_unauthorize - Unauthorize the specified peer device 815 * @p2p: P2P module context from p2p_init() 816 * @addr: P2P peer entry to be unauthorized 817 * Returns: 0 on success, -1 on failure 818 * 819 * This command removes any connection authorization from the specified P2P 820 * peer device address. This can be used, e.g., to cancel effect of a previous 821 * p2p_authorize() or p2p_connect() call that has not yet resulted in completed 822 * GO Negotiation. 823 */ 824int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr); 825 826/** 827 * p2p_set_dev_name - Set device name 828 * @p2p: P2P module context from p2p_init() 829 * Returns: 0 on success, -1 on failure 830 * 831 * This function can be used to update the P2P module configuration with 832 * information that was not available at the time of the p2p_init() call. 833 */ 834int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name); 835 836int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer); 837int p2p_set_model_name(struct p2p_data *p2p, const char *model_name); 838int p2p_set_model_number(struct p2p_data *p2p, const char *model_number); 839int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number); 840 841void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods); 842void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid); 843 844/** 845 * p2p_set_pri_dev_type - Set primary device type 846 * @p2p: P2P module context from p2p_init() 847 * Returns: 0 on success, -1 on failure 848 * 849 * This function can be used to update the P2P module configuration with 850 * information that was not available at the time of the p2p_init() call. 851 */ 852int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type); 853 854/** 855 * p2p_set_sec_dev_types - Set secondary device types 856 * @p2p: P2P module context from p2p_init() 857 * Returns: 0 on success, -1 on failure 858 * 859 * This function can be used to update the P2P module configuration with 860 * information that was not available at the time of the p2p_init() call. 861 */ 862int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8], 863 size_t num_dev_types); 864 865int p2p_set_country(struct p2p_data *p2p, const char *country); 866 867 868/* Commands from upper layer management entity */ 869 870enum p2p_discovery_type { 871 P2P_FIND_START_WITH_FULL, 872 P2P_FIND_ONLY_SOCIAL, 873 P2P_FIND_PROGRESSIVE 874}; 875 876/** 877 * p2p_find - Start P2P Find (Device Discovery) 878 * @p2p: P2P module context from p2p_init() 879 * @timeout: Timeout for find operation in seconds or 0 for no timeout 880 * @type: Device Discovery type 881 * @num_req_dev_types: Number of requested device types 882 * @req_dev_types: Requested device types array, must be an array 883 * containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no 884 * requested device types. 885 * @dev_id: Device ID to search for or %NULL to find all devices 886 * @search_delay: Extra delay in milliseconds between search iterations 887 * Returns: 0 on success, -1 on failure 888 */ 889int p2p_find(struct p2p_data *p2p, unsigned int timeout, 890 enum p2p_discovery_type type, 891 unsigned int num_req_dev_types, const u8 *req_dev_types, 892 const u8 *dev_id, unsigned int search_delay); 893 894/** 895 * p2p_stop_find - Stop P2P Find (Device Discovery) 896 * @p2p: P2P module context from p2p_init() 897 */ 898void p2p_stop_find(struct p2p_data *p2p); 899 900/** 901 * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq 902 * @p2p: P2P module context from p2p_init() 903 * @freq: Frequency in MHz for next operation 904 * 905 * This is like p2p_stop_find(), but Listen state is not stopped if we are 906 * already on the same frequency. 907 */ 908void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq); 909 910/** 911 * p2p_listen - Start P2P Listen state for specified duration 912 * @p2p: P2P module context from p2p_init() 913 * @timeout: Listen state duration in milliseconds 914 * Returns: 0 on success, -1 on failure 915 * 916 * This function can be used to request the P2P module to keep the device 917 * discoverable on the listen channel for an extended set of time. At least in 918 * its current form, this is mainly used for testing purposes and may not be of 919 * much use for normal P2P operations. 920 */ 921int p2p_listen(struct p2p_data *p2p, unsigned int timeout); 922 923/** 924 * p2p_stop_listen - Stop P2P Listen 925 * @p2p: P2P module context from p2p_init() 926 */ 927void p2p_stop_listen(struct p2p_data *p2p); 928 929/** 930 * p2p_connect - Start P2P group formation (GO negotiation) 931 * @p2p: P2P module context from p2p_init() 932 * @peer_addr: MAC address of the peer P2P client 933 * @wps_method: WPS method to be used in provisioning 934 * @go_intent: Local GO intent value (1..15) 935 * @own_interface_addr: Intended interface address to use with the group 936 * @force_freq: The only allowed channel frequency in MHz or 0 937 * @persistent_group: Whether to create a persistent group (0 = no, 1 = 938 * persistent group without persistent reconnect, 2 = persistent group with 939 * persistent reconnect) 940 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate 941 * a new SSID 942 * @force_ssid_len: Length of $force_ssid buffer 943 * @pd_before_go_neg: Whether to send Provision Discovery prior to GO 944 * Negotiation as an interoperability workaround when initiating group 945 * formation 946 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 947 * force_freq == 0) 948 * Returns: 0 on success, -1 on failure 949 */ 950int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr, 951 enum p2p_wps_method wps_method, 952 int go_intent, const u8 *own_interface_addr, 953 unsigned int force_freq, int persistent_group, 954 const u8 *force_ssid, size_t force_ssid_len, 955 int pd_before_go_neg, unsigned int pref_freq); 956 957/** 958 * p2p_authorize - Authorize P2P group formation (GO negotiation) 959 * @p2p: P2P module context from p2p_init() 960 * @peer_addr: MAC address of the peer P2P client 961 * @wps_method: WPS method to be used in provisioning 962 * @go_intent: Local GO intent value (1..15) 963 * @own_interface_addr: Intended interface address to use with the group 964 * @force_freq: The only allowed channel frequency in MHz or 0 965 * @persistent_group: Whether to create a persistent group (0 = no, 1 = 966 * persistent group without persistent reconnect, 2 = persistent group with 967 * persistent reconnect) 968 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate 969 * a new SSID 970 * @force_ssid_len: Length of $force_ssid buffer 971 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 972 * force_freq == 0) 973 * Returns: 0 on success, -1 on failure 974 * 975 * This is like p2p_connect(), but the actual group negotiation is not 976 * initiated automatically, i.e., the other end is expected to do that. 977 */ 978int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr, 979 enum p2p_wps_method wps_method, 980 int go_intent, const u8 *own_interface_addr, 981 unsigned int force_freq, int persistent_group, 982 const u8 *force_ssid, size_t force_ssid_len, 983 unsigned int pref_freq); 984 985/** 986 * p2p_reject - Reject peer device (explicitly block connection attempts) 987 * @p2p: P2P module context from p2p_init() 988 * @peer_addr: MAC address of the peer P2P client 989 * Returns: 0 on success, -1 on failure 990 */ 991int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr); 992 993/** 994 * p2p_prov_disc_req - Send Provision Discovery Request 995 * @p2p: P2P module context from p2p_init() 996 * @peer_addr: MAC address of the peer P2P client 997 * @config_methods: WPS Config Methods value (only one bit set) 998 * @join: Whether this is used by a client joining an active group 999 * @force_freq: Forced TX frequency for the frame (mainly for the join case) 1000 * @user_initiated_pd: Flag to indicate if initiated by user or not 1001 * Returns: 0 on success, -1 on failure 1002 * 1003 * This function can be used to request a discovered P2P peer to display a PIN 1004 * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us 1005 * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame 1006 * is transmitted once immediately and if no response is received, the frame 1007 * will be sent again whenever the target device is discovered during device 1008 * dsicovery (start with a p2p_find() call). Response from the peer is 1009 * indicated with the p2p_config::prov_disc_resp() callback. 1010 */ 1011int p2p_prov_disc_req(struct p2p_data *p2p, const u8 *peer_addr, 1012 u16 config_methods, int join, int force_freq, 1013 int user_initiated_pd); 1014 1015/** 1016 * p2p_sd_request - Schedule a service discovery query 1017 * @p2p: P2P module context from p2p_init() 1018 * @dst: Destination peer or %NULL to apply for all peers 1019 * @tlvs: P2P Service Query TLV(s) 1020 * Returns: Reference to the query or %NULL on failure 1021 * 1022 * Response to the query is indicated with the p2p_config::sd_response() 1023 * callback. 1024 */ 1025void * p2p_sd_request(struct p2p_data *p2p, const u8 *dst, 1026 const struct wpabuf *tlvs); 1027 1028#ifdef CONFIG_WIFI_DISPLAY 1029void * p2p_sd_request_wfd(struct p2p_data *p2p, const u8 *dst, 1030 const struct wpabuf *tlvs); 1031#endif /* CONFIG_WIFI_DISPLAY */ 1032 1033/** 1034 * p2p_sd_cancel_request - Cancel a pending service discovery query 1035 * @p2p: P2P module context from p2p_init() 1036 * @req: Query reference from p2p_sd_request() 1037 * Returns: 0 if request for cancelled; -1 if not found 1038 */ 1039int p2p_sd_cancel_request(struct p2p_data *p2p, void *req); 1040 1041/** 1042 * p2p_sd_response - Send response to a service discovery query 1043 * @p2p: P2P module context from p2p_init() 1044 * @freq: Frequency from p2p_config::sd_request() callback 1045 * @dst: Destination address from p2p_config::sd_request() callback 1046 * @dialog_token: Dialog token from p2p_config::sd_request() callback 1047 * @resp_tlvs: P2P Service Response TLV(s) 1048 * 1049 * This function is called as a response to the request indicated with 1050 * p2p_config::sd_request() callback. 1051 */ 1052void p2p_sd_response(struct p2p_data *p2p, int freq, const u8 *dst, 1053 u8 dialog_token, const struct wpabuf *resp_tlvs); 1054 1055/** 1056 * p2p_sd_service_update - Indicate a change in local services 1057 * @p2p: P2P module context from p2p_init() 1058 * 1059 * This function needs to be called whenever there is a change in availability 1060 * of the local services. This will increment the Service Update Indicator 1061 * value which will be used in SD Request and Response frames. 1062 */ 1063void p2p_sd_service_update(struct p2p_data *p2p); 1064 1065 1066enum p2p_invite_role { 1067 P2P_INVITE_ROLE_GO, 1068 P2P_INVITE_ROLE_ACTIVE_GO, 1069 P2P_INVITE_ROLE_CLIENT 1070}; 1071 1072/** 1073 * p2p_invite - Invite a P2P Device into a group 1074 * @p2p: P2P module context from p2p_init() 1075 * @peer: Device Address of the peer P2P Device 1076 * @role: Local role in the group 1077 * @bssid: Group BSSID or %NULL if not known 1078 * @ssid: Group SSID 1079 * @ssid_len: Length of ssid in octets 1080 * @force_freq: The only allowed channel frequency in MHz or 0 1081 * @go_dev_addr: Forced GO Device Address or %NULL if none 1082 * @persistent_group: Whether this is to reinvoke a persistent group 1083 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 1084 * force_freq == 0) 1085 * Returns: 0 on success, -1 on failure 1086 */ 1087int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role, 1088 const u8 *bssid, const u8 *ssid, size_t ssid_len, 1089 unsigned int force_freq, const u8 *go_dev_addr, 1090 int persistent_group, unsigned int pref_freq); 1091 1092/** 1093 * p2p_presence_req - Request GO presence 1094 * @p2p: P2P module context from p2p_init() 1095 * @go_interface_addr: GO P2P Interface Address 1096 * @own_interface_addr: Own P2P Interface Address for this group 1097 * @freq: Group operating frequence (in MHz) 1098 * @duration1: Preferred presence duration in microseconds 1099 * @interval1: Preferred presence interval in microseconds 1100 * @duration2: Acceptable presence duration in microseconds 1101 * @interval2: Acceptable presence interval in microseconds 1102 * Returns: 0 on success, -1 on failure 1103 * 1104 * If both duration and interval values are zero, the parameter pair is not 1105 * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0). 1106 */ 1107int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr, 1108 const u8 *own_interface_addr, unsigned int freq, 1109 u32 duration1, u32 interval1, u32 duration2, 1110 u32 interval2); 1111 1112/** 1113 * p2p_ext_listen - Set Extended Listen Timing 1114 * @p2p: P2P module context from p2p_init() 1115 * @freq: Group operating frequence (in MHz) 1116 * @period: Availability period in milliseconds (1-65535; 0 to disable) 1117 * @interval: Availability interval in milliseconds (1-65535; 0 to disable) 1118 * Returns: 0 on success, -1 on failure 1119 * 1120 * This function can be used to enable or disable (period = interval = 0) 1121 * Extended Listen Timing. When enabled, the P2P Device will become 1122 * discoverable (go into Listen State) every @interval milliseconds for at 1123 * least @period milliseconds. 1124 */ 1125int p2p_ext_listen(struct p2p_data *p2p, unsigned int period, 1126 unsigned int interval); 1127 1128/* Event notifications from upper layer management operations */ 1129 1130/** 1131 * p2p_wps_success_cb - Report successfully completed WPS provisioning 1132 * @p2p: P2P module context from p2p_init() 1133 * @mac_addr: Peer address 1134 * 1135 * This function is used to report successfully completed WPS provisioning 1136 * during group formation in both GO/Registrar and client/Enrollee roles. 1137 */ 1138void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr); 1139 1140/** 1141 * p2p_group_formation_failed - Report failed WPS provisioning 1142 * @p2p: P2P module context from p2p_init() 1143 * 1144 * This function is used to report failed group formation. This can happen 1145 * either due to failed WPS provisioning or due to 15 second timeout during 1146 * the provisioning phase. 1147 */ 1148void p2p_group_formation_failed(struct p2p_data *p2p); 1149 1150/** 1151 * p2p_get_provisioning_info - Get any stored provisioning info 1152 * @p2p: P2P module context from p2p_init() 1153 * @addr: Peer P2P Device Address 1154 * Returns: WPS provisioning information (WPS config method) or 0 if no 1155 * information is available 1156 * 1157 * This function is used to retrieve stored WPS provisioning info for the given 1158 * peer. 1159 */ 1160u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr); 1161 1162/** 1163 * p2p_clear_provisioning_info - Clear any stored provisioning info 1164 * @p2p: P2P module context from p2p_init() 1165 * @iface_addr: Peer P2P Device Address 1166 * 1167 * This function is used to clear stored WPS provisioning info for the given 1168 * peer. 1169 */ 1170void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr); 1171 1172 1173/* Event notifications from lower layer driver operations */ 1174 1175/** 1176 * enum p2p_probe_req_status 1177 * 1178 * @P2P_PREQ_MALFORMED: frame was not well-formed 1179 * @P2P_PREQ_NOT_LISTEN: device isn't in listen state, frame ignored 1180 * @P2P_PREQ_NOT_P2P: frame was not a P2P probe request 1181 * @P2P_PREQ_P2P_NOT_PROCESSED: frame was P2P but wasn't processed 1182 * @P2P_PREQ_P2P_PROCESSED: frame has been processed by P2P 1183 */ 1184enum p2p_probe_req_status { 1185 P2P_PREQ_MALFORMED, 1186 P2P_PREQ_NOT_LISTEN, 1187 P2P_PREQ_NOT_P2P, 1188 P2P_PREQ_NOT_PROCESSED, 1189 P2P_PREQ_PROCESSED 1190}; 1191 1192/** 1193 * p2p_probe_req_rx - Report reception of a Probe Request frame 1194 * @p2p: P2P module context from p2p_init() 1195 * @addr: Source MAC address 1196 * @dst: Destination MAC address if available or %NULL 1197 * @bssid: BSSID if available or %NULL 1198 * @ie: Information elements from the Probe Request frame body 1199 * @ie_len: Length of ie buffer in octets 1200 * Returns: value indicating the type and status of the probe request 1201 */ 1202enum p2p_probe_req_status 1203p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst, 1204 const u8 *bssid, const u8 *ie, size_t ie_len); 1205 1206/** 1207 * p2p_rx_action - Report received Action frame 1208 * @p2p: P2P module context from p2p_init() 1209 * @da: Destination address of the received Action frame 1210 * @sa: Source address of the received Action frame 1211 * @bssid: Address 3 of the received Action frame 1212 * @category: Category of the received Action frame 1213 * @data: Action frame body after the Category field 1214 * @len: Length of the data buffer in octets 1215 * @freq: Frequency (in MHz) on which the frame was received 1216 */ 1217void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa, 1218 const u8 *bssid, u8 category, 1219 const u8 *data, size_t len, int freq); 1220 1221/** 1222 * p2p_scan_res_handler - Indicate a P2P scan results 1223 * @p2p: P2P module context from p2p_init() 1224 * @bssid: BSSID of the scan result 1225 * @freq: Frequency of the channel on which the device was found in MHz 1226 * @rx_time: Time when the result was received 1227 * @level: Signal level (signal strength of the received Beacon/Probe Response 1228 * frame) 1229 * @ies: Pointer to IEs from the scan result 1230 * @ies_len: Length of the ies buffer 1231 * Returns: 0 to continue or 1 to stop scan result indication 1232 * 1233 * This function is called to indicate a scan result entry with P2P IE from a 1234 * scan requested with struct p2p_config::p2p_scan(). This can be called during 1235 * the actual scan process (i.e., whenever a new device is found) or as a 1236 * sequence of calls after the full scan has been completed. The former option 1237 * can result in optimized operations, but may not be supported by all 1238 * driver/firmware designs. The ies buffer need to include at least the P2P IE, 1239 * but it is recommended to include all IEs received from the device. The 1240 * caller does not need to check that the IEs contain a P2P IE before calling 1241 * this function since frames will be filtered internally if needed. 1242 * 1243 * This function will return 1 if it wants to stop scan result iteration (and 1244 * scan in general if it is still in progress). This is used to allow faster 1245 * start of a pending operation, e.g., to start a pending GO negotiation. 1246 */ 1247int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq, 1248 struct os_time *rx_time, int level, const u8 *ies, 1249 size_t ies_len); 1250 1251/** 1252 * p2p_scan_res_handled - Indicate end of scan results 1253 * @p2p: P2P module context from p2p_init() 1254 * 1255 * This function is called to indicate that all P2P scan results from a scan 1256 * have been reported with zero or more calls to p2p_scan_res_handler(). This 1257 * function must be called as a response to successful 1258 * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler() 1259 * calls stopped iteration. 1260 */ 1261void p2p_scan_res_handled(struct p2p_data *p2p); 1262 1263enum p2p_send_action_result { 1264 P2P_SEND_ACTION_SUCCESS /* Frame was send and acknowledged */, 1265 P2P_SEND_ACTION_NO_ACK /* Frame was sent, but not acknowledged */, 1266 P2P_SEND_ACTION_FAILED /* Frame was not sent due to a failure */ 1267}; 1268 1269/** 1270 * p2p_send_action_cb - Notify TX status of an Action frame 1271 * @p2p: P2P module context from p2p_init() 1272 * @freq: Channel frequency in MHz 1273 * @dst: Destination MAC address (Address 1) 1274 * @src: Source MAC address (Address 2) 1275 * @bssid: BSSID (Address 3) 1276 * @result: Result of the transmission attempt 1277 * 1278 * This function is used to indicate the result of an Action frame transmission 1279 * that was requested with struct p2p_config::send_action() callback. 1280 */ 1281void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst, 1282 const u8 *src, const u8 *bssid, 1283 enum p2p_send_action_result result); 1284 1285/** 1286 * p2p_listen_cb - Indicate the start of a requested Listen state 1287 * @p2p: P2P module context from p2p_init() 1288 * @freq: Listen channel frequency in MHz 1289 * @duration: Duration for the Listen state in milliseconds 1290 * 1291 * This function is used to indicate that a Listen state requested with 1292 * struct p2p_config::start_listen() callback has started. 1293 */ 1294void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq, 1295 unsigned int duration); 1296 1297/** 1298 * p2p_listen_end - Indicate the end of a requested Listen state 1299 * @p2p: P2P module context from p2p_init() 1300 * @freq: Listen channel frequency in MHz 1301 * Returns: 0 if no operations were started, 1 if an operation was started 1302 * 1303 * This function is used to indicate that a Listen state requested with 1304 * struct p2p_config::start_listen() callback has ended. 1305 */ 1306int p2p_listen_end(struct p2p_data *p2p, unsigned int freq); 1307 1308void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code, 1309 const u8 *ie, size_t ie_len); 1310 1311void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code, 1312 const u8 *ie, size_t ie_len); 1313 1314 1315/* Per-group P2P state for GO */ 1316 1317struct p2p_group; 1318 1319/** 1320 * struct p2p_group_config - P2P group configuration 1321 * 1322 * This configuration is provided to the P2P module during initialization of 1323 * the per-group information with p2p_group_init(). 1324 */ 1325struct p2p_group_config { 1326 /** 1327 * persistent_group - Whether the group is persistent 1328 * 0 = not a persistent group 1329 * 1 = persistent group without persistent reconnect 1330 * 2 = persistent group with persistent reconnect 1331 */ 1332 int persistent_group; 1333 1334 /** 1335 * interface_addr - P2P Interface Address of the group 1336 */ 1337 u8 interface_addr[ETH_ALEN]; 1338 1339 /** 1340 * max_clients - Maximum number of clients in the group 1341 */ 1342 unsigned int max_clients; 1343 1344 /** 1345 * ssid - Group SSID 1346 */ 1347 u8 ssid[32]; 1348 1349 /** 1350 * ssid_len - Length of SSID 1351 */ 1352 size_t ssid_len; 1353 1354 /** 1355 * cb_ctx - Context to use with callback functions 1356 */ 1357 void *cb_ctx; 1358 1359 /** 1360 * ie_update - Notification of IE update 1361 * @ctx: Callback context from cb_ctx 1362 * @beacon_ies: P2P IE for Beacon frames or %NULL if no change 1363 * @proberesp_ies: P2P Ie for Probe Response frames 1364 * 1365 * P2P module uses this callback function to notify whenever the P2P IE 1366 * in Beacon or Probe Response frames should be updated based on group 1367 * events. 1368 * 1369 * The callee is responsible for freeing the returned buffer(s) with 1370 * wpabuf_free(). 1371 */ 1372 void (*ie_update)(void *ctx, struct wpabuf *beacon_ies, 1373 struct wpabuf *proberesp_ies); 1374 1375 /** 1376 * idle_update - Notification of changes in group idle state 1377 * @ctx: Callback context from cb_ctx 1378 * @idle: Whether the group is idle (no associated stations) 1379 */ 1380 void (*idle_update)(void *ctx, int idle); 1381}; 1382 1383/** 1384 * p2p_group_init - Initialize P2P group 1385 * @p2p: P2P module context from p2p_init() 1386 * @config: P2P group configuration (will be freed by p2p_group_deinit()) 1387 * Returns: Pointer to private data or %NULL on failure 1388 * 1389 * This function is used to initialize per-group P2P module context. Currently, 1390 * this is only used to manage GO functionality and P2P clients do not need to 1391 * create an instance of this per-group information. 1392 */ 1393struct p2p_group * p2p_group_init(struct p2p_data *p2p, 1394 struct p2p_group_config *config); 1395 1396/** 1397 * p2p_group_deinit - Deinitialize P2P group 1398 * @group: P2P group context from p2p_group_init() 1399 */ 1400void p2p_group_deinit(struct p2p_group *group); 1401 1402/** 1403 * p2p_group_notif_assoc - Notification of P2P client association with GO 1404 * @group: P2P group context from p2p_group_init() 1405 * @addr: Interface address of the P2P client 1406 * @ie: IEs from the (Re)association Request frame 1407 * @len: Length of the ie buffer in octets 1408 * Returns: 0 on success, -1 on failure 1409 */ 1410int p2p_group_notif_assoc(struct p2p_group *group, const u8 *addr, 1411 const u8 *ie, size_t len); 1412 1413/** 1414 * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response 1415 * @group: P2P group context from p2p_group_init() 1416 * @status: Status value (P2P_SC_SUCCESS if association succeeded) 1417 * Returns: P2P IE for (Re)association Response or %NULL on failure 1418 * 1419 * The caller is responsible for freeing the returned buffer with 1420 * wpabuf_free(). 1421 */ 1422struct wpabuf * p2p_group_assoc_resp_ie(struct p2p_group *group, u8 status); 1423 1424/** 1425 * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO 1426 * @group: P2P group context from p2p_group_init() 1427 * @addr: Interface address of the P2P client 1428 */ 1429void p2p_group_notif_disassoc(struct p2p_group *group, const u8 *addr); 1430 1431/** 1432 * p2p_group_notif_formation_done - Notification of completed group formation 1433 * @group: P2P group context from p2p_group_init() 1434 */ 1435void p2p_group_notif_formation_done(struct p2p_group *group); 1436 1437/** 1438 * p2p_group_notif_noa - Notification of NoA change 1439 * @group: P2P group context from p2p_group_init() 1440 * @noa: Notice of Absence attribute payload, %NULL if none 1441 * @noa_len: Length of noa buffer in octets 1442 * Returns: 0 on success, -1 on failure 1443 * 1444 * Notify the P2P group management about a new NoA contents. This will be 1445 * inserted into the P2P IEs in Beacon and Probe Response frames with rest of 1446 * the group information. 1447 */ 1448int p2p_group_notif_noa(struct p2p_group *group, const u8 *noa, 1449 size_t noa_len); 1450 1451/** 1452 * p2p_group_match_dev_type - Match device types in group with requested type 1453 * @group: P2P group context from p2p_group_init() 1454 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs) 1455 * Returns: 1 on match, 0 on mismatch 1456 * 1457 * This function can be used to match the Requested Device Type attribute in 1458 * WPS IE with the device types of a group member for deciding whether a GO 1459 * should reply to a Probe Request frame. Match will be reported if the WPS IE 1460 * is not requested any specific device type. 1461 */ 1462int p2p_group_match_dev_type(struct p2p_group *group, struct wpabuf *wps); 1463 1464/** 1465 * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id 1466 */ 1467int p2p_group_match_dev_id(struct p2p_group *group, struct wpabuf *p2p); 1468 1469/** 1470 * p2p_group_go_discover - Send GO Discoverability Request to a group client 1471 * @group: P2P group context from p2p_group_init() 1472 * Returns: 0 on success (frame scheduled); -1 if client was not found 1473 */ 1474int p2p_group_go_discover(struct p2p_group *group, const u8 *dev_id, 1475 const u8 *searching_dev, int rx_freq); 1476 1477 1478/* Generic helper functions */ 1479 1480/** 1481 * p2p_ie_text - Build text format description of P2P IE 1482 * @p2p_ie: P2P IE 1483 * @buf: Buffer for returning text 1484 * @end: Pointer to the end of the buf area 1485 * Returns: Number of octets written to the buffer or -1 on failure 1486 * 1487 * This function can be used to parse P2P IE contents into text format 1488 * field=value lines. 1489 */ 1490int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end); 1491 1492/** 1493 * p2p_scan_result_text - Build text format description of P2P IE 1494 * @ies: Information elements from scan results 1495 * @ies_len: ies buffer length in octets 1496 * @buf: Buffer for returning text 1497 * @end: Pointer to the end of the buf area 1498 * Returns: Number of octets written to the buffer or -1 on failure 1499 * 1500 * This function can be used to parse P2P IE contents into text format 1501 * field=value lines. 1502 */ 1503int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end); 1504 1505/** 1506 * p2p_parse_dev_addr_in_p2p_ie - Parse P2P Device Address from a concatenated 1507 * P2P IE 1508 * @p2p_ie: P2P IE 1509 * @dev_addr: Buffer for returning P2P Device Address 1510 * Returns: 0 on success or -1 if P2P Device Address could not be parsed 1511 */ 1512int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr); 1513 1514/** 1515 * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s) 1516 * @ies: Information elements from scan results 1517 * @ies_len: ies buffer length in octets 1518 * @dev_addr: Buffer for returning P2P Device Address 1519 * Returns: 0 on success or -1 if P2P Device Address could not be parsed 1520 */ 1521int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr); 1522 1523/** 1524 * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame 1525 * @p2p: P2P module context from p2p_init() 1526 * @bssid: BSSID 1527 * @buf: Buffer for writing the P2P IE 1528 * @len: Maximum buf length in octets 1529 * @p2p_group: Whether this is for association with a P2P GO 1530 * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none 1531 * Returns: Number of octets written into buf or -1 on failure 1532 */ 1533int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf, 1534 size_t len, int p2p_group, struct wpabuf *p2p_ie); 1535 1536/** 1537 * p2p_scan_ie - Build P2P IE for Probe Request 1538 * @p2p: P2P module context from p2p_init() 1539 * @ies: Buffer for writing P2P IE 1540 * @dev_id: Device ID to search for or %NULL for any 1541 */ 1542void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id); 1543 1544/** 1545 * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie 1546 * @p2p: P2P module context from p2p_init() 1547 * Returns: Number of octets that p2p_scan_ie() may add to the buffer 1548 */ 1549size_t p2p_scan_ie_buf_len(struct p2p_data *p2p); 1550 1551/** 1552 * p2p_go_params - Generate random P2P group parameters 1553 * @p2p: P2P module context from p2p_init() 1554 * @params: Buffer for parameters 1555 * Returns: 0 on success, -1 on failure 1556 */ 1557int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params); 1558 1559/** 1560 * p2p_get_group_capab - Get Group Capability from P2P IE data 1561 * @p2p_ie: P2P IE(s) contents 1562 * Returns: Group Capability 1563 */ 1564u8 p2p_get_group_capab(const struct wpabuf *p2p_ie); 1565 1566/** 1567 * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection 1568 * @p2p_ie: P2P IE(s) contents 1569 * Returns: 0 if cross connection is allow, 1 if not 1570 */ 1571int p2p_get_cross_connect_disallowed(const struct wpabuf *p2p_ie); 1572 1573/** 1574 * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data 1575 * @p2p_ie: P2P IE(s) contents 1576 * Returns: Pointer to P2P Device Address or %NULL if not included 1577 */ 1578const u8 * p2p_get_go_dev_addr(const struct wpabuf *p2p_ie); 1579 1580/** 1581 * p2p_get_peer_info - Get P2P peer information 1582 * @p2p: P2P module context from p2p_init() 1583 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer 1584 * @next: Whether to select the peer entry following the one indicated by addr 1585 * Returns: Pointer to peer info or %NULL if not found 1586 */ 1587const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p, 1588 const u8 *addr, int next); 1589 1590/** 1591 * p2p_get_peer_info_txt - Get internal P2P peer information in text format 1592 * @info: Pointer to P2P peer info from p2p_get_peer_info() 1593 * @buf: Buffer for returning text 1594 * @buflen: Maximum buffer length 1595 * Returns: Number of octets written to the buffer or -1 on failure 1596 * 1597 * Note: This information is internal to the P2P module and subject to change. 1598 * As such, this should not really be used by external programs for purposes 1599 * other than debugging. 1600 */ 1601int p2p_get_peer_info_txt(const struct p2p_peer_info *info, 1602 char *buf, size_t buflen); 1603 1604/** 1605 * p2p_peer_known - Check whether P2P peer is known 1606 * @p2p: P2P module context from p2p_init() 1607 * @addr: P2P Device Address of the peer 1608 * Returns: 1 if the specified device is in the P2P peer table or 0 if not 1609 */ 1610int p2p_peer_known(struct p2p_data *p2p, const u8 *addr); 1611 1612/** 1613 * p2p_set_client_discoverability - Set client discoverability capability 1614 * @p2p: P2P module context from p2p_init() 1615 * @enabled: Whether client discoverability will be enabled 1616 * 1617 * This function can be used to disable (and re-enable) client discoverability. 1618 * This capability is enabled by default and should not be disabled in normal 1619 * use cases, i.e., this is mainly for testing purposes. 1620 */ 1621void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled); 1622 1623/** 1624 * p2p_set_managed_oper - Set managed P2P Device operations capability 1625 * @p2p: P2P module context from p2p_init() 1626 * @enabled: Whether managed P2P Device operations will be enabled 1627 */ 1628void p2p_set_managed_oper(struct p2p_data *p2p, int enabled); 1629 1630int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel); 1631 1632int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len); 1633 1634int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr, 1635 u8 *iface_addr); 1636int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr, 1637 u8 *dev_addr); 1638 1639void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr); 1640 1641/** 1642 * p2p_set_cross_connect - Set cross connection capability 1643 * @p2p: P2P module context from p2p_init() 1644 * @enabled: Whether cross connection will be enabled 1645 */ 1646void p2p_set_cross_connect(struct p2p_data *p2p, int enabled); 1647 1648int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr); 1649 1650/** 1651 * p2p_set_intra_bss_dist - Set intra BSS distribution 1652 * @p2p: P2P module context from p2p_init() 1653 * @enabled: Whether intra BSS distribution will be enabled 1654 */ 1655void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled); 1656 1657int p2p_channels_includes_freq(const struct p2p_channels *channels, 1658 unsigned int freq); 1659 1660/** 1661 * p2p_supported_freq - Check whether channel is supported for P2P 1662 * @p2p: P2P module context from p2p_init() 1663 * @freq: Channel frequency in MHz 1664 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 1665 */ 1666int p2p_supported_freq(struct p2p_data *p2p, unsigned int freq); 1667 1668/** 1669 * p2p_supported_freq_go - Check whether channel is supported for P2P GO operation 1670 * @p2p: P2P module context from p2p_init() 1671 * @freq: Channel frequency in MHz 1672 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 1673 */ 1674int p2p_supported_freq_go(struct p2p_data *p2p, unsigned int freq); 1675 1676/** 1677 * p2p_supported_freq_cli - Check whether channel is supported for P2P client operation 1678 * @p2p: P2P module context from p2p_init() 1679 * @freq: Channel frequency in MHz 1680 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 1681 */ 1682int p2p_supported_freq_cli(struct p2p_data *p2p, unsigned int freq); 1683 1684/** 1685 * p2p_get_pref_freq - Get channel from preferred channel list 1686 * @p2p: P2P module context from p2p_init() 1687 * @channels: List of channels 1688 * Returns: Preferred channel 1689 */ 1690unsigned int p2p_get_pref_freq(struct p2p_data *p2p, 1691 const struct p2p_channels *channels); 1692 1693void p2p_update_channel_list(struct p2p_data *p2p, 1694 const struct p2p_channels *chan, 1695 const struct p2p_channels *cli_chan); 1696 1697/** 1698 * p2p_set_best_channels - Update best channel information 1699 * @p2p: P2P module context from p2p_init() 1700 * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band 1701 * @freq_5: Frequency (MHz) of best channel in 5 GHz band 1702 * @freq_overall: Frequency (MHz) of best channel overall 1703 */ 1704void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5, 1705 int freq_overall); 1706 1707/** 1708 * p2p_set_own_freq_preference - Set own preference for channel 1709 * @p2p: P2P module context from p2p_init() 1710 * @freq: Frequency (MHz) of the preferred channel or 0 if no preference 1711 * 1712 * This function can be used to set a preference on the operating channel based 1713 * on frequencies used on the other virtual interfaces that share the same 1714 * radio. If non-zero, this is used to try to avoid multi-channel concurrency. 1715 */ 1716void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq); 1717 1718const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p); 1719 1720/** 1721 * p2p_get_group_num_members - Get number of members in group 1722 * @group: P2P group context from p2p_group_init() 1723 * Returns: Number of members in the group 1724 */ 1725unsigned int p2p_get_group_num_members(struct p2p_group *group); 1726 1727/** 1728 * p2p_iterate_group_members - Iterate group members 1729 * @group: P2P group context from p2p_group_init() 1730 * @next: iteration pointer, must be a pointer to a void * that is set to %NULL 1731 * on the first call and not modified later 1732 * Returns: A P2P Interface Address for each call and %NULL for no more members 1733 */ 1734const u8 * p2p_iterate_group_members(struct p2p_group *group, void **next); 1735 1736/** 1737 * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group 1738 * @group: P2P group context from p2p_group_init() 1739 * @addr: P2P Interface Address of the client 1740 * Returns: P2P Device Address of the client if found or %NULL if no match 1741 * found 1742 */ 1743const u8 * p2p_group_get_dev_addr(struct p2p_group *group, const u8 *addr); 1744 1745/** 1746 * p2p_group_is_client_connected - Check whether a specific client is connected 1747 * @group: P2P group context from p2p_group_init() 1748 * @addr: P2P Device Address of the client 1749 * Returns: 1 if client is connected or 0 if not 1750 */ 1751int p2p_group_is_client_connected(struct p2p_group *group, const u8 *dev_addr); 1752 1753/** 1754 * p2p_get_peer_found - Get P2P peer info structure of a found peer 1755 * @p2p: P2P module context from p2p_init() 1756 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer 1757 * @next: Whether to select the peer entry following the one indicated by addr 1758 * Returns: The first P2P peer info available or %NULL if no such peer exists 1759 */ 1760const struct p2p_peer_info * 1761p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next); 1762 1763/** 1764 * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions 1765 * @p2p: P2P module context from p2p_init() 1766 */ 1767void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p); 1768 1769/** 1770 * p2p_add_wps_vendor_extension - Add a WPS vendor extension 1771 * @p2p: P2P module context from p2p_init() 1772 * @vendor_ext: The vendor extensions to add 1773 * Returns: 0 on success, -1 on failure 1774 * 1775 * The wpabuf structures in the array are owned by the P2P 1776 * module after this call. 1777 */ 1778int p2p_add_wps_vendor_extension(struct p2p_data *p2p, 1779 const struct wpabuf *vendor_ext); 1780 1781/** 1782 * p2p_set_oper_channel - Set the P2P operating channel 1783 * @p2p: P2P module context from p2p_init() 1784 * @op_reg_class: Operating regulatory class to set 1785 * @op_channel: operating channel to set 1786 * @cfg_op_channel : Whether op_channel is hardcoded in configuration 1787 * Returns: 0 on success, -1 on failure 1788 */ 1789int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel, 1790 int cfg_op_channel); 1791 1792/** 1793 * p2p_set_pref_chan - Set P2P preferred channel list 1794 * @p2p: P2P module context from p2p_init() 1795 * @num_pref_chan: Number of entries in pref_chan list 1796 * @pref_chan: Preferred channels or %NULL to remove preferences 1797 * Returns: 0 on success, -1 on failure 1798 */ 1799int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan, 1800 const struct p2p_channel *pref_chan); 1801 1802/** 1803 * p2p_set_no_go_freq - Set no GO channel ranges 1804 * @p2p: P2P module context from p2p_init() 1805 * @list: Channel ranges or %NULL to remove restriction 1806 * Returns: 0 on success, -1 on failure 1807 */ 1808int p2p_set_no_go_freq(struct p2p_data *p2p, 1809 const struct wpa_freq_range_list *list); 1810 1811/** 1812 * p2p_in_progress - Check whether a P2P operation is progress 1813 * @p2p: P2P module context from p2p_init() 1814 * Returns: 0 if P2P module is idle or 1 if an operation is in progress 1815 */ 1816int p2p_in_progress(struct p2p_data *p2p); 1817 1818/** 1819 * p2p_other_scan_completed - Notify completion of non-P2P scan 1820 * @p2p: P2P module context from p2p_init() 1821 * Returns: 0 if P2P module is idle or 1 if an operation was started 1822 */ 1823int p2p_other_scan_completed(struct p2p_data *p2p); 1824 1825const char * p2p_wps_method_text(enum p2p_wps_method method); 1826 1827/** 1828 * p2p_set_config_timeout - Set local config timeouts 1829 * @p2p: P2P module context from p2p_init() 1830 * @go_timeout: Time in 10 ms units it takes to start the GO mode 1831 * @client_timeout: Time in 10 ms units it takes to start the client mode 1832 */ 1833void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout, 1834 u8 client_timeout); 1835 1836void p2p_increase_search_delay(struct p2p_data *p2p, unsigned int delay); 1837 1838int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie); 1839int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie); 1840int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie); 1841int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie); 1842int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie); 1843int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie); 1844int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie); 1845int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie); 1846int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem); 1847int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem); 1848int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p, 1849 const struct wpabuf *elem); 1850struct wpabuf * wifi_display_encaps(struct wpabuf *subelems); 1851 1852/** 1853 * p2p_set_disc_int - Set min/max discoverable interval for p2p_find 1854 * @p2p: P2P module context from p2p_init() 1855 * @min_disc_int: minDiscoverableInterval (in units of 100 TU); default 1 1856 * @max_disc_int: maxDiscoverableInterval (in units of 100 TU); default 3 1857 * @max_disc_tu: Maximum number of TUs (1.024 ms) for discoverable interval; or 1858 * -1 not to limit 1859 * Returns: 0 on success, or -1 on failure 1860 * 1861 * This function can be used to configure minDiscoverableInterval and 1862 * maxDiscoverableInterval parameters for the Listen state during device 1863 * discovery (p2p_find). A random number of 100 TU units is picked for each 1864 * Listen state iteration from [min_disc_int,max_disc_int] range. 1865 * 1866 * max_disc_tu can be used to futher limit the discoverable duration. However, 1867 * it should be noted that use of this parameter is not recommended since it 1868 * would not be compliant with the P2P specification. 1869 */ 1870int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int, 1871 int max_disc_tu); 1872 1873/** 1874 * p2p_get_state_txt - Get current P2P state for debug purposes 1875 * @p2p: P2P module context from p2p_init() 1876 * Returns: Name of the current P2P module state 1877 * 1878 * It should be noted that the P2P module state names are internal information 1879 * and subject to change at any point, i.e., this information should be used 1880 * mainly for debugging purposes. 1881 */ 1882const char * p2p_get_state_txt(struct p2p_data *p2p); 1883 1884#endif /* P2P_H */ 1885