p2p.h revision 4e45558d160f5ae131def0e63ff7f6b2e41d9fe2
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 * 762 * This callback is used to indicate result of an Invitation procedure 763 * started with a call to p2p_invite(). The indicated status code is 764 * the value received from the peer in Invitation Response with 0 765 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a 766 * local failure in transmitting the Invitation Request. 767 */ 768 void (*invitation_result)(void *ctx, int status, const u8 *bssid, 769 const struct p2p_channels *channels, 770 const u8 *addr); 771 772 /** 773 * go_connected - Check whether we are connected to a GO 774 * @ctx: Callback context from cb_ctx 775 * @dev_addr: P2P Device Address of a GO 776 * Returns: 1 if we are connected as a P2P client to the specified GO 777 * or 0 if not. 778 */ 779 int (*go_connected)(void *ctx, const u8 *dev_addr); 780}; 781 782 783/* P2P module initialization/deinitialization */ 784 785/** 786 * p2p_init - Initialize P2P module 787 * @cfg: P2P module configuration 788 * Returns: Pointer to private data or %NULL on failure 789 * 790 * This function is used to initialize global P2P module context (one per 791 * device). The P2P module will keep a copy of the configuration data, so the 792 * caller does not need to maintain this structure. However, the callback 793 * functions and the context parameters to them must be kept available until 794 * the P2P module is deinitialized with p2p_deinit(). 795 */ 796struct p2p_data * p2p_init(const struct p2p_config *cfg); 797 798/** 799 * p2p_deinit - Deinitialize P2P module 800 * @p2p: P2P module context from p2p_init() 801 */ 802void p2p_deinit(struct p2p_data *p2p); 803 804/** 805 * p2p_flush - Flush P2P module state 806 * @p2p: P2P module context from p2p_init() 807 * 808 * This command removes the P2P module state like peer device entries. 809 */ 810void p2p_flush(struct p2p_data *p2p); 811 812/** 813 * p2p_unauthorize - Unauthorize the specified peer device 814 * @p2p: P2P module context from p2p_init() 815 * @addr: P2P peer entry to be unauthorized 816 * Returns: 0 on success, -1 on failure 817 * 818 * This command removes any connection authorization from the specified P2P 819 * peer device address. This can be used, e.g., to cancel effect of a previous 820 * p2p_authorize() or p2p_connect() call that has not yet resulted in completed 821 * GO Negotiation. 822 */ 823int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr); 824 825/** 826 * p2p_set_dev_name - Set device name 827 * @p2p: P2P module context from p2p_init() 828 * Returns: 0 on success, -1 on failure 829 * 830 * This function can be used to update the P2P module configuration with 831 * information that was not available at the time of the p2p_init() call. 832 */ 833int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name); 834 835int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer); 836int p2p_set_model_name(struct p2p_data *p2p, const char *model_name); 837int p2p_set_model_number(struct p2p_data *p2p, const char *model_number); 838int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number); 839 840void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods); 841void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid); 842 843/** 844 * p2p_set_pri_dev_type - Set primary device type 845 * @p2p: P2P module context from p2p_init() 846 * Returns: 0 on success, -1 on failure 847 * 848 * This function can be used to update the P2P module configuration with 849 * information that was not available at the time of the p2p_init() call. 850 */ 851int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type); 852 853/** 854 * p2p_set_sec_dev_types - Set secondary device types 855 * @p2p: P2P module context from p2p_init() 856 * Returns: 0 on success, -1 on failure 857 * 858 * This function can be used to update the P2P module configuration with 859 * information that was not available at the time of the p2p_init() call. 860 */ 861int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8], 862 size_t num_dev_types); 863 864int p2p_set_country(struct p2p_data *p2p, const char *country); 865 866 867/* Commands from upper layer management entity */ 868 869enum p2p_discovery_type { 870 P2P_FIND_START_WITH_FULL, 871 P2P_FIND_ONLY_SOCIAL, 872 P2P_FIND_PROGRESSIVE 873}; 874 875/** 876 * p2p_find - Start P2P Find (Device Discovery) 877 * @p2p: P2P module context from p2p_init() 878 * @timeout: Timeout for find operation in seconds or 0 for no timeout 879 * @type: Device Discovery type 880 * @num_req_dev_types: Number of requested device types 881 * @req_dev_types: Requested device types array, must be an array 882 * containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no 883 * requested device types. 884 * @dev_id: Device ID to search for or %NULL to find all devices 885 * @search_delay: Extra delay in milliseconds between search iterations 886 * Returns: 0 on success, -1 on failure 887 */ 888int p2p_find(struct p2p_data *p2p, unsigned int timeout, 889 enum p2p_discovery_type type, 890 unsigned int num_req_dev_types, const u8 *req_dev_types, 891 const u8 *dev_id, unsigned int search_delay); 892 893/** 894 * p2p_stop_find - Stop P2P Find (Device Discovery) 895 * @p2p: P2P module context from p2p_init() 896 */ 897void p2p_stop_find(struct p2p_data *p2p); 898 899/** 900 * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq 901 * @p2p: P2P module context from p2p_init() 902 * @freq: Frequency in MHz for next operation 903 * 904 * This is like p2p_stop_find(), but Listen state is not stopped if we are 905 * already on the same frequency. 906 */ 907void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq); 908 909/** 910 * p2p_listen - Start P2P Listen state for specified duration 911 * @p2p: P2P module context from p2p_init() 912 * @timeout: Listen state duration in milliseconds 913 * Returns: 0 on success, -1 on failure 914 * 915 * This function can be used to request the P2P module to keep the device 916 * discoverable on the listen channel for an extended set of time. At least in 917 * its current form, this is mainly used for testing purposes and may not be of 918 * much use for normal P2P operations. 919 */ 920int p2p_listen(struct p2p_data *p2p, unsigned int timeout); 921 922/** 923 * p2p_stop_listen - Stop P2P Listen 924 * @p2p: P2P module context from p2p_init() 925 */ 926void p2p_stop_listen(struct p2p_data *p2p); 927 928/** 929 * p2p_connect - Start P2P group formation (GO negotiation) 930 * @p2p: P2P module context from p2p_init() 931 * @peer_addr: MAC address of the peer P2P client 932 * @wps_method: WPS method to be used in provisioning 933 * @go_intent: Local GO intent value (1..15) 934 * @own_interface_addr: Intended interface address to use with the group 935 * @force_freq: The only allowed channel frequency in MHz or 0 936 * @persistent_group: Whether to create a persistent group (0 = no, 1 = 937 * persistent group without persistent reconnect, 2 = persistent group with 938 * persistent reconnect) 939 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate 940 * a new SSID 941 * @force_ssid_len: Length of $force_ssid buffer 942 * @pd_before_go_neg: Whether to send Provision Discovery prior to GO 943 * Negotiation as an interoperability workaround when initiating group 944 * formation 945 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 946 * force_freq == 0) 947 * Returns: 0 on success, -1 on failure 948 */ 949int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr, 950 enum p2p_wps_method wps_method, 951 int go_intent, const u8 *own_interface_addr, 952 unsigned int force_freq, int persistent_group, 953 const u8 *force_ssid, size_t force_ssid_len, 954 int pd_before_go_neg, unsigned int pref_freq); 955 956/** 957 * p2p_authorize - Authorize P2P group formation (GO negotiation) 958 * @p2p: P2P module context from p2p_init() 959 * @peer_addr: MAC address of the peer P2P client 960 * @wps_method: WPS method to be used in provisioning 961 * @go_intent: Local GO intent value (1..15) 962 * @own_interface_addr: Intended interface address to use with the group 963 * @force_freq: The only allowed channel frequency in MHz or 0 964 * @persistent_group: Whether to create a persistent group (0 = no, 1 = 965 * persistent group without persistent reconnect, 2 = persistent group with 966 * persistent reconnect) 967 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate 968 * a new SSID 969 * @force_ssid_len: Length of $force_ssid buffer 970 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 971 * force_freq == 0) 972 * Returns: 0 on success, -1 on failure 973 * 974 * This is like p2p_connect(), but the actual group negotiation is not 975 * initiated automatically, i.e., the other end is expected to do that. 976 */ 977int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr, 978 enum p2p_wps_method wps_method, 979 int go_intent, const u8 *own_interface_addr, 980 unsigned int force_freq, int persistent_group, 981 const u8 *force_ssid, size_t force_ssid_len, 982 unsigned int pref_freq); 983 984/** 985 * p2p_reject - Reject peer device (explicitly block connection attempts) 986 * @p2p: P2P module context from p2p_init() 987 * @peer_addr: MAC address of the peer P2P client 988 * Returns: 0 on success, -1 on failure 989 */ 990int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr); 991 992/** 993 * p2p_prov_disc_req - Send Provision Discovery Request 994 * @p2p: P2P module context from p2p_init() 995 * @peer_addr: MAC address of the peer P2P client 996 * @config_methods: WPS Config Methods value (only one bit set) 997 * @join: Whether this is used by a client joining an active group 998 * @force_freq: Forced TX frequency for the frame (mainly for the join case) 999 * @user_initiated_pd: Flag to indicate if initiated by user or not 1000 * Returns: 0 on success, -1 on failure 1001 * 1002 * This function can be used to request a discovered P2P peer to display a PIN 1003 * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us 1004 * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame 1005 * is transmitted once immediately and if no response is received, the frame 1006 * will be sent again whenever the target device is discovered during device 1007 * dsicovery (start with a p2p_find() call). Response from the peer is 1008 * indicated with the p2p_config::prov_disc_resp() callback. 1009 */ 1010int p2p_prov_disc_req(struct p2p_data *p2p, const u8 *peer_addr, 1011 u16 config_methods, int join, int force_freq, 1012 int user_initiated_pd); 1013 1014/** 1015 * p2p_sd_request - Schedule a service discovery query 1016 * @p2p: P2P module context from p2p_init() 1017 * @dst: Destination peer or %NULL to apply for all peers 1018 * @tlvs: P2P Service Query TLV(s) 1019 * Returns: Reference to the query or %NULL on failure 1020 * 1021 * Response to the query is indicated with the p2p_config::sd_response() 1022 * callback. 1023 */ 1024void * p2p_sd_request(struct p2p_data *p2p, const u8 *dst, 1025 const struct wpabuf *tlvs); 1026 1027#ifdef CONFIG_WIFI_DISPLAY 1028void * p2p_sd_request_wfd(struct p2p_data *p2p, const u8 *dst, 1029 const struct wpabuf *tlvs); 1030#endif /* CONFIG_WIFI_DISPLAY */ 1031 1032/** 1033 * p2p_sd_cancel_request - Cancel a pending service discovery query 1034 * @p2p: P2P module context from p2p_init() 1035 * @req: Query reference from p2p_sd_request() 1036 * Returns: 0 if request for cancelled; -1 if not found 1037 */ 1038int p2p_sd_cancel_request(struct p2p_data *p2p, void *req); 1039 1040/** 1041 * p2p_sd_response - Send response to a service discovery query 1042 * @p2p: P2P module context from p2p_init() 1043 * @freq: Frequency from p2p_config::sd_request() callback 1044 * @dst: Destination address from p2p_config::sd_request() callback 1045 * @dialog_token: Dialog token from p2p_config::sd_request() callback 1046 * @resp_tlvs: P2P Service Response TLV(s) 1047 * 1048 * This function is called as a response to the request indicated with 1049 * p2p_config::sd_request() callback. 1050 */ 1051void p2p_sd_response(struct p2p_data *p2p, int freq, const u8 *dst, 1052 u8 dialog_token, const struct wpabuf *resp_tlvs); 1053 1054/** 1055 * p2p_sd_service_update - Indicate a change in local services 1056 * @p2p: P2P module context from p2p_init() 1057 * 1058 * This function needs to be called whenever there is a change in availability 1059 * of the local services. This will increment the Service Update Indicator 1060 * value which will be used in SD Request and Response frames. 1061 */ 1062void p2p_sd_service_update(struct p2p_data *p2p); 1063 1064 1065enum p2p_invite_role { 1066 P2P_INVITE_ROLE_GO, 1067 P2P_INVITE_ROLE_ACTIVE_GO, 1068 P2P_INVITE_ROLE_CLIENT 1069}; 1070 1071/** 1072 * p2p_invite - Invite a P2P Device into a group 1073 * @p2p: P2P module context from p2p_init() 1074 * @peer: Device Address of the peer P2P Device 1075 * @role: Local role in the group 1076 * @bssid: Group BSSID or %NULL if not known 1077 * @ssid: Group SSID 1078 * @ssid_len: Length of ssid in octets 1079 * @force_freq: The only allowed channel frequency in MHz or 0 1080 * @go_dev_addr: Forced GO Device Address or %NULL if none 1081 * @persistent_group: Whether this is to reinvoke a persistent group 1082 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 1083 * force_freq == 0) 1084 * Returns: 0 on success, -1 on failure 1085 */ 1086int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role, 1087 const u8 *bssid, const u8 *ssid, size_t ssid_len, 1088 unsigned int force_freq, const u8 *go_dev_addr, 1089 int persistent_group, unsigned int pref_freq); 1090 1091/** 1092 * p2p_presence_req - Request GO presence 1093 * @p2p: P2P module context from p2p_init() 1094 * @go_interface_addr: GO P2P Interface Address 1095 * @own_interface_addr: Own P2P Interface Address for this group 1096 * @freq: Group operating frequence (in MHz) 1097 * @duration1: Preferred presence duration in microseconds 1098 * @interval1: Preferred presence interval in microseconds 1099 * @duration2: Acceptable presence duration in microseconds 1100 * @interval2: Acceptable presence interval in microseconds 1101 * Returns: 0 on success, -1 on failure 1102 * 1103 * If both duration and interval values are zero, the parameter pair is not 1104 * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0). 1105 */ 1106int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr, 1107 const u8 *own_interface_addr, unsigned int freq, 1108 u32 duration1, u32 interval1, u32 duration2, 1109 u32 interval2); 1110 1111/** 1112 * p2p_ext_listen - Set Extended Listen Timing 1113 * @p2p: P2P module context from p2p_init() 1114 * @freq: Group operating frequence (in MHz) 1115 * @period: Availability period in milliseconds (1-65535; 0 to disable) 1116 * @interval: Availability interval in milliseconds (1-65535; 0 to disable) 1117 * Returns: 0 on success, -1 on failure 1118 * 1119 * This function can be used to enable or disable (period = interval = 0) 1120 * Extended Listen Timing. When enabled, the P2P Device will become 1121 * discoverable (go into Listen State) every @interval milliseconds for at 1122 * least @period milliseconds. 1123 */ 1124int p2p_ext_listen(struct p2p_data *p2p, unsigned int period, 1125 unsigned int interval); 1126 1127/* Event notifications from upper layer management operations */ 1128 1129/** 1130 * p2p_wps_success_cb - Report successfully completed WPS provisioning 1131 * @p2p: P2P module context from p2p_init() 1132 * @mac_addr: Peer address 1133 * 1134 * This function is used to report successfully completed WPS provisioning 1135 * during group formation in both GO/Registrar and client/Enrollee roles. 1136 */ 1137void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr); 1138 1139/** 1140 * p2p_group_formation_failed - Report failed WPS provisioning 1141 * @p2p: P2P module context from p2p_init() 1142 * 1143 * This function is used to report failed group formation. This can happen 1144 * either due to failed WPS provisioning or due to 15 second timeout during 1145 * the provisioning phase. 1146 */ 1147void p2p_group_formation_failed(struct p2p_data *p2p); 1148 1149/** 1150 * p2p_get_provisioning_info - Get any stored provisioning info 1151 * @p2p: P2P module context from p2p_init() 1152 * @addr: Peer P2P Device Address 1153 * Returns: WPS provisioning information (WPS config method) or 0 if no 1154 * information is available 1155 * 1156 * This function is used to retrieve stored WPS provisioning info for the given 1157 * peer. 1158 */ 1159u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr); 1160 1161/** 1162 * p2p_clear_provisioning_info - Clear any stored provisioning info 1163 * @p2p: P2P module context from p2p_init() 1164 * @iface_addr: Peer P2P Device Address 1165 * 1166 * This function is used to clear stored WPS provisioning info for the given 1167 * peer. 1168 */ 1169void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr); 1170 1171 1172/* Event notifications from lower layer driver operations */ 1173 1174/** 1175 * enum p2p_probe_req_status 1176 * 1177 * @P2P_PREQ_MALFORMED: frame was not well-formed 1178 * @P2P_PREQ_NOT_LISTEN: device isn't in listen state, frame ignored 1179 * @P2P_PREQ_NOT_P2P: frame was not a P2P probe request 1180 * @P2P_PREQ_P2P_NOT_PROCESSED: frame was P2P but wasn't processed 1181 * @P2P_PREQ_P2P_PROCESSED: frame has been processed by P2P 1182 */ 1183enum p2p_probe_req_status { 1184 P2P_PREQ_MALFORMED, 1185 P2P_PREQ_NOT_LISTEN, 1186 P2P_PREQ_NOT_P2P, 1187 P2P_PREQ_NOT_PROCESSED, 1188 P2P_PREQ_PROCESSED 1189}; 1190 1191/** 1192 * p2p_probe_req_rx - Report reception of a Probe Request frame 1193 * @p2p: P2P module context from p2p_init() 1194 * @addr: Source MAC address 1195 * @dst: Destination MAC address if available or %NULL 1196 * @bssid: BSSID if available or %NULL 1197 * @ie: Information elements from the Probe Request frame body 1198 * @ie_len: Length of ie buffer in octets 1199 * Returns: value indicating the type and status of the probe request 1200 */ 1201enum p2p_probe_req_status 1202p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst, 1203 const u8 *bssid, const u8 *ie, size_t ie_len); 1204 1205/** 1206 * p2p_rx_action - Report received Action frame 1207 * @p2p: P2P module context from p2p_init() 1208 * @da: Destination address of the received Action frame 1209 * @sa: Source address of the received Action frame 1210 * @bssid: Address 3 of the received Action frame 1211 * @category: Category of the received Action frame 1212 * @data: Action frame body after the Category field 1213 * @len: Length of the data buffer in octets 1214 * @freq: Frequency (in MHz) on which the frame was received 1215 */ 1216void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa, 1217 const u8 *bssid, u8 category, 1218 const u8 *data, size_t len, int freq); 1219 1220/** 1221 * p2p_scan_res_handler - Indicate a P2P scan results 1222 * @p2p: P2P module context from p2p_init() 1223 * @bssid: BSSID of the scan result 1224 * @freq: Frequency of the channel on which the device was found in MHz 1225 * @rx_time: Time when the result was received 1226 * @level: Signal level (signal strength of the received Beacon/Probe Response 1227 * frame) 1228 * @ies: Pointer to IEs from the scan result 1229 * @ies_len: Length of the ies buffer 1230 * Returns: 0 to continue or 1 to stop scan result indication 1231 * 1232 * This function is called to indicate a scan result entry with P2P IE from a 1233 * scan requested with struct p2p_config::p2p_scan(). This can be called during 1234 * the actual scan process (i.e., whenever a new device is found) or as a 1235 * sequence of calls after the full scan has been completed. The former option 1236 * can result in optimized operations, but may not be supported by all 1237 * driver/firmware designs. The ies buffer need to include at least the P2P IE, 1238 * but it is recommended to include all IEs received from the device. The 1239 * caller does not need to check that the IEs contain a P2P IE before calling 1240 * this function since frames will be filtered internally if needed. 1241 * 1242 * This function will return 1 if it wants to stop scan result iteration (and 1243 * scan in general if it is still in progress). This is used to allow faster 1244 * start of a pending operation, e.g., to start a pending GO negotiation. 1245 */ 1246int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq, 1247 struct os_time *rx_time, int level, const u8 *ies, 1248 size_t ies_len); 1249 1250/** 1251 * p2p_scan_res_handled - Indicate end of scan results 1252 * @p2p: P2P module context from p2p_init() 1253 * 1254 * This function is called to indicate that all P2P scan results from a scan 1255 * have been reported with zero or more calls to p2p_scan_res_handler(). This 1256 * function must be called as a response to successful 1257 * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler() 1258 * calls stopped iteration. 1259 */ 1260void p2p_scan_res_handled(struct p2p_data *p2p); 1261 1262enum p2p_send_action_result { 1263 P2P_SEND_ACTION_SUCCESS /* Frame was send and acknowledged */, 1264 P2P_SEND_ACTION_NO_ACK /* Frame was sent, but not acknowledged */, 1265 P2P_SEND_ACTION_FAILED /* Frame was not sent due to a failure */ 1266}; 1267 1268/** 1269 * p2p_send_action_cb - Notify TX status of an Action frame 1270 * @p2p: P2P module context from p2p_init() 1271 * @freq: Channel frequency in MHz 1272 * @dst: Destination MAC address (Address 1) 1273 * @src: Source MAC address (Address 2) 1274 * @bssid: BSSID (Address 3) 1275 * @result: Result of the transmission attempt 1276 * 1277 * This function is used to indicate the result of an Action frame transmission 1278 * that was requested with struct p2p_config::send_action() callback. 1279 */ 1280void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst, 1281 const u8 *src, const u8 *bssid, 1282 enum p2p_send_action_result result); 1283 1284/** 1285 * p2p_listen_cb - Indicate the start of a requested Listen state 1286 * @p2p: P2P module context from p2p_init() 1287 * @freq: Listen channel frequency in MHz 1288 * @duration: Duration for the Listen state in milliseconds 1289 * 1290 * This function is used to indicate that a Listen state requested with 1291 * struct p2p_config::start_listen() callback has started. 1292 */ 1293void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq, 1294 unsigned int duration); 1295 1296/** 1297 * p2p_listen_end - Indicate the end of a requested Listen state 1298 * @p2p: P2P module context from p2p_init() 1299 * @freq: Listen channel frequency in MHz 1300 * Returns: 0 if no operations were started, 1 if an operation was started 1301 * 1302 * This function is used to indicate that a Listen state requested with 1303 * struct p2p_config::start_listen() callback has ended. 1304 */ 1305int p2p_listen_end(struct p2p_data *p2p, unsigned int freq); 1306 1307void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code, 1308 const u8 *ie, size_t ie_len); 1309 1310void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code, 1311 const u8 *ie, size_t ie_len); 1312 1313 1314/* Per-group P2P state for GO */ 1315 1316struct p2p_group; 1317 1318/** 1319 * struct p2p_group_config - P2P group configuration 1320 * 1321 * This configuration is provided to the P2P module during initialization of 1322 * the per-group information with p2p_group_init(). 1323 */ 1324struct p2p_group_config { 1325 /** 1326 * persistent_group - Whether the group is persistent 1327 * 0 = not a persistent group 1328 * 1 = persistent group without persistent reconnect 1329 * 2 = persistent group with persistent reconnect 1330 */ 1331 int persistent_group; 1332 1333 /** 1334 * interface_addr - P2P Interface Address of the group 1335 */ 1336 u8 interface_addr[ETH_ALEN]; 1337 1338 /** 1339 * max_clients - Maximum number of clients in the group 1340 */ 1341 unsigned int max_clients; 1342 1343 /** 1344 * ssid - Group SSID 1345 */ 1346 u8 ssid[32]; 1347 1348 /** 1349 * ssid_len - Length of SSID 1350 */ 1351 size_t ssid_len; 1352 1353 /** 1354 * cb_ctx - Context to use with callback functions 1355 */ 1356 void *cb_ctx; 1357 1358 /** 1359 * ie_update - Notification of IE update 1360 * @ctx: Callback context from cb_ctx 1361 * @beacon_ies: P2P IE for Beacon frames or %NULL if no change 1362 * @proberesp_ies: P2P Ie for Probe Response frames 1363 * 1364 * P2P module uses this callback function to notify whenever the P2P IE 1365 * in Beacon or Probe Response frames should be updated based on group 1366 * events. 1367 * 1368 * The callee is responsible for freeing the returned buffer(s) with 1369 * wpabuf_free(). 1370 */ 1371 void (*ie_update)(void *ctx, struct wpabuf *beacon_ies, 1372 struct wpabuf *proberesp_ies); 1373 1374 /** 1375 * idle_update - Notification of changes in group idle state 1376 * @ctx: Callback context from cb_ctx 1377 * @idle: Whether the group is idle (no associated stations) 1378 */ 1379 void (*idle_update)(void *ctx, int idle); 1380}; 1381 1382/** 1383 * p2p_group_init - Initialize P2P group 1384 * @p2p: P2P module context from p2p_init() 1385 * @config: P2P group configuration (will be freed by p2p_group_deinit()) 1386 * Returns: Pointer to private data or %NULL on failure 1387 * 1388 * This function is used to initialize per-group P2P module context. Currently, 1389 * this is only used to manage GO functionality and P2P clients do not need to 1390 * create an instance of this per-group information. 1391 */ 1392struct p2p_group * p2p_group_init(struct p2p_data *p2p, 1393 struct p2p_group_config *config); 1394 1395/** 1396 * p2p_group_deinit - Deinitialize P2P group 1397 * @group: P2P group context from p2p_group_init() 1398 */ 1399void p2p_group_deinit(struct p2p_group *group); 1400 1401/** 1402 * p2p_group_notif_assoc - Notification of P2P client association with GO 1403 * @group: P2P group context from p2p_group_init() 1404 * @addr: Interface address of the P2P client 1405 * @ie: IEs from the (Re)association Request frame 1406 * @len: Length of the ie buffer in octets 1407 * Returns: 0 on success, -1 on failure 1408 */ 1409int p2p_group_notif_assoc(struct p2p_group *group, const u8 *addr, 1410 const u8 *ie, size_t len); 1411 1412/** 1413 * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response 1414 * @group: P2P group context from p2p_group_init() 1415 * @status: Status value (P2P_SC_SUCCESS if association succeeded) 1416 * Returns: P2P IE for (Re)association Response or %NULL on failure 1417 * 1418 * The caller is responsible for freeing the returned buffer with 1419 * wpabuf_free(). 1420 */ 1421struct wpabuf * p2p_group_assoc_resp_ie(struct p2p_group *group, u8 status); 1422 1423/** 1424 * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO 1425 * @group: P2P group context from p2p_group_init() 1426 * @addr: Interface address of the P2P client 1427 */ 1428void p2p_group_notif_disassoc(struct p2p_group *group, const u8 *addr); 1429 1430/** 1431 * p2p_group_notif_formation_done - Notification of completed group formation 1432 * @group: P2P group context from p2p_group_init() 1433 */ 1434void p2p_group_notif_formation_done(struct p2p_group *group); 1435 1436/** 1437 * p2p_group_notif_noa - Notification of NoA change 1438 * @group: P2P group context from p2p_group_init() 1439 * @noa: Notice of Absence attribute payload, %NULL if none 1440 * @noa_len: Length of noa buffer in octets 1441 * Returns: 0 on success, -1 on failure 1442 * 1443 * Notify the P2P group management about a new NoA contents. This will be 1444 * inserted into the P2P IEs in Beacon and Probe Response frames with rest of 1445 * the group information. 1446 */ 1447int p2p_group_notif_noa(struct p2p_group *group, const u8 *noa, 1448 size_t noa_len); 1449 1450/** 1451 * p2p_group_match_dev_type - Match device types in group with requested type 1452 * @group: P2P group context from p2p_group_init() 1453 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs) 1454 * Returns: 1 on match, 0 on mismatch 1455 * 1456 * This function can be used to match the Requested Device Type attribute in 1457 * WPS IE with the device types of a group member for deciding whether a GO 1458 * should reply to a Probe Request frame. Match will be reported if the WPS IE 1459 * is not requested any specific device type. 1460 */ 1461int p2p_group_match_dev_type(struct p2p_group *group, struct wpabuf *wps); 1462 1463/** 1464 * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id 1465 */ 1466int p2p_group_match_dev_id(struct p2p_group *group, struct wpabuf *p2p); 1467 1468/** 1469 * p2p_group_go_discover - Send GO Discoverability Request to a group client 1470 * @group: P2P group context from p2p_group_init() 1471 * Returns: 0 on success (frame scheduled); -1 if client was not found 1472 */ 1473int p2p_group_go_discover(struct p2p_group *group, const u8 *dev_id, 1474 const u8 *searching_dev, int rx_freq); 1475 1476 1477/* Generic helper functions */ 1478 1479/** 1480 * p2p_ie_text - Build text format description of P2P IE 1481 * @p2p_ie: P2P IE 1482 * @buf: Buffer for returning text 1483 * @end: Pointer to the end of the buf area 1484 * Returns: Number of octets written to the buffer or -1 on failure 1485 * 1486 * This function can be used to parse P2P IE contents into text format 1487 * field=value lines. 1488 */ 1489int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end); 1490 1491/** 1492 * p2p_scan_result_text - Build text format description of P2P IE 1493 * @ies: Information elements from scan results 1494 * @ies_len: ies buffer length in octets 1495 * @buf: Buffer for returning text 1496 * @end: Pointer to the end of the buf area 1497 * Returns: Number of octets written to the buffer or -1 on failure 1498 * 1499 * This function can be used to parse P2P IE contents into text format 1500 * field=value lines. 1501 */ 1502int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end); 1503 1504/** 1505 * p2p_parse_dev_addr_in_p2p_ie - Parse P2P Device Address from a concatenated 1506 * P2P IE 1507 * @p2p_ie: P2P IE 1508 * @dev_addr: Buffer for returning P2P Device Address 1509 * Returns: 0 on success or -1 if P2P Device Address could not be parsed 1510 */ 1511int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr); 1512 1513/** 1514 * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s) 1515 * @ies: Information elements from scan results 1516 * @ies_len: ies buffer length in octets 1517 * @dev_addr: Buffer for returning P2P Device Address 1518 * Returns: 0 on success or -1 if P2P Device Address could not be parsed 1519 */ 1520int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr); 1521 1522/** 1523 * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame 1524 * @p2p: P2P module context from p2p_init() 1525 * @bssid: BSSID 1526 * @buf: Buffer for writing the P2P IE 1527 * @len: Maximum buf length in octets 1528 * @p2p_group: Whether this is for association with a P2P GO 1529 * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none 1530 * Returns: Number of octets written into buf or -1 on failure 1531 */ 1532int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf, 1533 size_t len, int p2p_group, struct wpabuf *p2p_ie); 1534 1535/** 1536 * p2p_scan_ie - Build P2P IE for Probe Request 1537 * @p2p: P2P module context from p2p_init() 1538 * @ies: Buffer for writing P2P IE 1539 * @dev_id: Device ID to search for or %NULL for any 1540 */ 1541void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id); 1542 1543/** 1544 * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie 1545 * @p2p: P2P module context from p2p_init() 1546 * Returns: Number of octets that p2p_scan_ie() may add to the buffer 1547 */ 1548size_t p2p_scan_ie_buf_len(struct p2p_data *p2p); 1549 1550/** 1551 * p2p_go_params - Generate random P2P group parameters 1552 * @p2p: P2P module context from p2p_init() 1553 * @params: Buffer for parameters 1554 * Returns: 0 on success, -1 on failure 1555 */ 1556int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params); 1557 1558/** 1559 * p2p_get_group_capab - Get Group Capability from P2P IE data 1560 * @p2p_ie: P2P IE(s) contents 1561 * Returns: Group Capability 1562 */ 1563u8 p2p_get_group_capab(const struct wpabuf *p2p_ie); 1564 1565/** 1566 * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection 1567 * @p2p_ie: P2P IE(s) contents 1568 * Returns: 0 if cross connection is allow, 1 if not 1569 */ 1570int p2p_get_cross_connect_disallowed(const struct wpabuf *p2p_ie); 1571 1572/** 1573 * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data 1574 * @p2p_ie: P2P IE(s) contents 1575 * Returns: Pointer to P2P Device Address or %NULL if not included 1576 */ 1577const u8 * p2p_get_go_dev_addr(const struct wpabuf *p2p_ie); 1578 1579/** 1580 * p2p_get_peer_info - Get P2P peer information 1581 * @p2p: P2P module context from p2p_init() 1582 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer 1583 * @next: Whether to select the peer entry following the one indicated by addr 1584 * Returns: Pointer to peer info or %NULL if not found 1585 */ 1586const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p, 1587 const u8 *addr, int next); 1588 1589/** 1590 * p2p_get_peer_info_txt - Get internal P2P peer information in text format 1591 * @info: Pointer to P2P peer info from p2p_get_peer_info() 1592 * @buf: Buffer for returning text 1593 * @buflen: Maximum buffer length 1594 * Returns: Number of octets written to the buffer or -1 on failure 1595 * 1596 * Note: This information is internal to the P2P module and subject to change. 1597 * As such, this should not really be used by external programs for purposes 1598 * other than debugging. 1599 */ 1600int p2p_get_peer_info_txt(const struct p2p_peer_info *info, 1601 char *buf, size_t buflen); 1602 1603/** 1604 * p2p_peer_known - Check whether P2P peer is known 1605 * @p2p: P2P module context from p2p_init() 1606 * @addr: P2P Device Address of the peer 1607 * Returns: 1 if the specified device is in the P2P peer table or 0 if not 1608 */ 1609int p2p_peer_known(struct p2p_data *p2p, const u8 *addr); 1610 1611/** 1612 * p2p_set_client_discoverability - Set client discoverability capability 1613 * @p2p: P2P module context from p2p_init() 1614 * @enabled: Whether client discoverability will be enabled 1615 * 1616 * This function can be used to disable (and re-enable) client discoverability. 1617 * This capability is enabled by default and should not be disabled in normal 1618 * use cases, i.e., this is mainly for testing purposes. 1619 */ 1620void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled); 1621 1622/** 1623 * p2p_set_managed_oper - Set managed P2P Device operations capability 1624 * @p2p: P2P module context from p2p_init() 1625 * @enabled: Whether managed P2P Device operations will be enabled 1626 */ 1627void p2p_set_managed_oper(struct p2p_data *p2p, int enabled); 1628 1629int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel); 1630 1631int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len); 1632 1633int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr, 1634 u8 *iface_addr); 1635int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr, 1636 u8 *dev_addr); 1637 1638void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr); 1639 1640/** 1641 * p2p_set_cross_connect - Set cross connection capability 1642 * @p2p: P2P module context from p2p_init() 1643 * @enabled: Whether cross connection will be enabled 1644 */ 1645void p2p_set_cross_connect(struct p2p_data *p2p, int enabled); 1646 1647int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr); 1648 1649/** 1650 * p2p_set_intra_bss_dist - Set intra BSS distribution 1651 * @p2p: P2P module context from p2p_init() 1652 * @enabled: Whether intra BSS distribution will be enabled 1653 */ 1654void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled); 1655 1656int p2p_channels_includes_freq(const struct p2p_channels *channels, 1657 unsigned int freq); 1658 1659/** 1660 * p2p_supported_freq - Check whether channel is supported for P2P 1661 * @p2p: P2P module context from p2p_init() 1662 * @freq: Channel frequency in MHz 1663 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 1664 */ 1665int p2p_supported_freq(struct p2p_data *p2p, unsigned int freq); 1666 1667/** 1668 * p2p_supported_freq_go - Check whether channel is supported for P2P GO operation 1669 * @p2p: P2P module context from p2p_init() 1670 * @freq: Channel frequency in MHz 1671 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 1672 */ 1673int p2p_supported_freq_go(struct p2p_data *p2p, unsigned int freq); 1674 1675/** 1676 * p2p_supported_freq_cli - Check whether channel is supported for P2P client operation 1677 * @p2p: P2P module context from p2p_init() 1678 * @freq: Channel frequency in MHz 1679 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 1680 */ 1681int p2p_supported_freq_cli(struct p2p_data *p2p, unsigned int freq); 1682 1683/** 1684 * p2p_get_pref_freq - Get channel from preferred channel list 1685 * @p2p: P2P module context from p2p_init() 1686 * @channels: List of channels 1687 * Returns: Preferred channel 1688 */ 1689unsigned int p2p_get_pref_freq(struct p2p_data *p2p, 1690 const struct p2p_channels *channels); 1691 1692void p2p_update_channel_list(struct p2p_data *p2p, 1693 const struct p2p_channels *chan, 1694 const struct p2p_channels *cli_chan); 1695 1696/** 1697 * p2p_set_best_channels - Update best channel information 1698 * @p2p: P2P module context from p2p_init() 1699 * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band 1700 * @freq_5: Frequency (MHz) of best channel in 5 GHz band 1701 * @freq_overall: Frequency (MHz) of best channel overall 1702 */ 1703void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5, 1704 int freq_overall); 1705 1706/** 1707 * p2p_set_own_freq_preference - Set own preference for channel 1708 * @p2p: P2P module context from p2p_init() 1709 * @freq: Frequency (MHz) of the preferred channel or 0 if no preference 1710 * 1711 * This function can be used to set a preference on the operating channel based 1712 * on frequencies used on the other virtual interfaces that share the same 1713 * radio. If non-zero, this is used to try to avoid multi-channel concurrency. 1714 */ 1715void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq); 1716 1717const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p); 1718 1719/** 1720 * p2p_get_group_num_members - Get number of members in group 1721 * @group: P2P group context from p2p_group_init() 1722 * Returns: Number of members in the group 1723 */ 1724unsigned int p2p_get_group_num_members(struct p2p_group *group); 1725 1726/** 1727 * p2p_iterate_group_members - Iterate group members 1728 * @group: P2P group context from p2p_group_init() 1729 * @next: iteration pointer, must be a pointer to a void * that is set to %NULL 1730 * on the first call and not modified later 1731 * Returns: A P2P Interface Address for each call and %NULL for no more members 1732 */ 1733const u8 * p2p_iterate_group_members(struct p2p_group *group, void **next); 1734 1735/** 1736 * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group 1737 * @group: P2P group context from p2p_group_init() 1738 * @addr: P2P Interface Address of the client 1739 * Returns: P2P Device Address of the client if found or %NULL if no match 1740 * found 1741 */ 1742const u8 * p2p_group_get_dev_addr(struct p2p_group *group, const u8 *addr); 1743 1744/** 1745 * p2p_group_is_client_connected - Check whether a specific client is connected 1746 * @group: P2P group context from p2p_group_init() 1747 * @addr: P2P Device Address of the client 1748 * Returns: 1 if client is connected or 0 if not 1749 */ 1750int p2p_group_is_client_connected(struct p2p_group *group, const u8 *dev_addr); 1751 1752/** 1753 * p2p_get_peer_found - Get P2P peer info structure of a found peer 1754 * @p2p: P2P module context from p2p_init() 1755 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer 1756 * @next: Whether to select the peer entry following the one indicated by addr 1757 * Returns: The first P2P peer info available or %NULL if no such peer exists 1758 */ 1759const struct p2p_peer_info * 1760p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next); 1761 1762/** 1763 * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions 1764 * @p2p: P2P module context from p2p_init() 1765 */ 1766void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p); 1767 1768/** 1769 * p2p_add_wps_vendor_extension - Add a WPS vendor extension 1770 * @p2p: P2P module context from p2p_init() 1771 * @vendor_ext: The vendor extensions to add 1772 * Returns: 0 on success, -1 on failure 1773 * 1774 * The wpabuf structures in the array are owned by the P2P 1775 * module after this call. 1776 */ 1777int p2p_add_wps_vendor_extension(struct p2p_data *p2p, 1778 const struct wpabuf *vendor_ext); 1779 1780/** 1781 * p2p_set_oper_channel - Set the P2P operating channel 1782 * @p2p: P2P module context from p2p_init() 1783 * @op_reg_class: Operating regulatory class to set 1784 * @op_channel: operating channel to set 1785 * @cfg_op_channel : Whether op_channel is hardcoded in configuration 1786 * Returns: 0 on success, -1 on failure 1787 */ 1788int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel, 1789 int cfg_op_channel); 1790 1791/** 1792 * p2p_set_pref_chan - Set P2P preferred channel list 1793 * @p2p: P2P module context from p2p_init() 1794 * @num_pref_chan: Number of entries in pref_chan list 1795 * @pref_chan: Preferred channels or %NULL to remove preferences 1796 * Returns: 0 on success, -1 on failure 1797 */ 1798int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan, 1799 const struct p2p_channel *pref_chan); 1800 1801/** 1802 * p2p_set_no_go_freq - Set no GO channel ranges 1803 * @p2p: P2P module context from p2p_init() 1804 * @list: Channel ranges or %NULL to remove restriction 1805 * Returns: 0 on success, -1 on failure 1806 */ 1807int p2p_set_no_go_freq(struct p2p_data *p2p, 1808 const struct wpa_freq_range_list *list); 1809 1810/** 1811 * p2p_in_progress - Check whether a P2P operation is progress 1812 * @p2p: P2P module context from p2p_init() 1813 * Returns: 0 if P2P module is idle or 1 if an operation is in progress 1814 */ 1815int p2p_in_progress(struct p2p_data *p2p); 1816 1817/** 1818 * p2p_other_scan_completed - Notify completion of non-P2P scan 1819 * @p2p: P2P module context from p2p_init() 1820 * Returns: 0 if P2P module is idle or 1 if an operation was started 1821 */ 1822int p2p_other_scan_completed(struct p2p_data *p2p); 1823 1824const char * p2p_wps_method_text(enum p2p_wps_method method); 1825 1826/** 1827 * p2p_set_config_timeout - Set local config timeouts 1828 * @p2p: P2P module context from p2p_init() 1829 * @go_timeout: Time in 10 ms units it takes to start the GO mode 1830 * @client_timeout: Time in 10 ms units it takes to start the client mode 1831 */ 1832void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout, 1833 u8 client_timeout); 1834 1835void p2p_increase_search_delay(struct p2p_data *p2p, unsigned int delay); 1836 1837int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie); 1838int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie); 1839int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie); 1840int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie); 1841int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie); 1842int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie); 1843int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie); 1844int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie); 1845int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem); 1846int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem); 1847int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p, 1848 const struct wpabuf *elem); 1849struct wpabuf * wifi_display_encaps(struct wpabuf *subelems); 1850 1851/** 1852 * p2p_set_disc_int - Set min/max discoverable interval for p2p_find 1853 * @p2p: P2P module context from p2p_init() 1854 * @min_disc_int: minDiscoverableInterval (in units of 100 TU); default 1 1855 * @max_disc_int: maxDiscoverableInterval (in units of 100 TU); default 3 1856 * @max_disc_tu: Maximum number of TUs (1.024 ms) for discoverable interval; or 1857 * -1 not to limit 1858 * Returns: 0 on success, or -1 on failure 1859 * 1860 * This function can be used to configure minDiscoverableInterval and 1861 * maxDiscoverableInterval parameters for the Listen state during device 1862 * discovery (p2p_find). A random number of 100 TU units is picked for each 1863 * Listen state iteration from [min_disc_int,max_disc_int] range. 1864 * 1865 * max_disc_tu can be used to futher limit the discoverable duration. However, 1866 * it should be noted that use of this parameter is not recommended since it 1867 * would not be compliant with the P2P specification. 1868 */ 1869int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int, 1870 int max_disc_tu); 1871 1872/** 1873 * p2p_get_state_txt - Get current P2P state for debug purposes 1874 * @p2p: P2P module context from p2p_init() 1875 * Returns: Name of the current P2P module state 1876 * 1877 * It should be noted that the P2P module state names are internal information 1878 * and subject to change at any point, i.e., this information should be used 1879 * mainly for debugging purposes. 1880 */ 1881const char * p2p_get_state_txt(struct p2p_data *p2p); 1882 1883#endif /* P2P_H */ 1884