p2p.h revision 43cb578dfe2c492257636f6234a24178ed27789e
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#include "wps/wps_defs.h" 13 14/** 15 * P2P_MAX_REG_CLASSES - Maximum number of regulatory classes 16 */ 17#define P2P_MAX_REG_CLASSES 10 18 19/** 20 * P2P_MAX_REG_CLASS_CHANNELS - Maximum number of channels per regulatory class 21 */ 22#define P2P_MAX_REG_CLASS_CHANNELS 20 23 24/** 25 * struct p2p_channels - List of supported channels 26 */ 27struct p2p_channels { 28 /** 29 * struct p2p_reg_class - Supported regulatory class 30 */ 31 struct p2p_reg_class { 32 /** 33 * reg_class - Regulatory class (IEEE 802.11-2007, Annex J) 34 */ 35 u8 reg_class; 36 37 /** 38 * channel - Supported channels 39 */ 40 u8 channel[P2P_MAX_REG_CLASS_CHANNELS]; 41 42 /** 43 * channels - Number of channel entries in use 44 */ 45 size_t channels; 46 } reg_class[P2P_MAX_REG_CLASSES]; 47 48 /** 49 * reg_classes - Number of reg_class entries in use 50 */ 51 size_t reg_classes; 52}; 53 54enum p2p_wps_method { 55 WPS_NOT_READY, WPS_PIN_DISPLAY, WPS_PIN_KEYPAD, WPS_PBC, WPS_NFC 56}; 57 58/** 59 * struct p2p_go_neg_results - P2P Group Owner Negotiation results 60 */ 61struct p2p_go_neg_results { 62 /** 63 * status - Negotiation result (Status Code) 64 * 65 * 0 (P2P_SC_SUCCESS) indicates success. Non-zero values indicate 66 * failed negotiation. 67 */ 68 int status; 69 70 /** 71 * role_go - Whether local end is Group Owner 72 */ 73 int role_go; 74 75 /** 76 * freq - Frequency of the group operational channel in MHz 77 */ 78 int freq; 79 80 int ht40; 81 82 int vht; 83 84 /** 85 * ssid - SSID of the group 86 */ 87 u8 ssid[32]; 88 89 /** 90 * ssid_len - Length of SSID in octets 91 */ 92 size_t ssid_len; 93 94 /** 95 * psk - WPA pre-shared key (256 bits) (GO only) 96 */ 97 u8 psk[32]; 98 99 /** 100 * psk_set - Whether PSK field is configured (GO only) 101 */ 102 int psk_set; 103 104 /** 105 * passphrase - WPA2-Personal passphrase for the group (GO only) 106 */ 107 char passphrase[64]; 108 109 /** 110 * peer_device_addr - P2P Device Address of the peer 111 */ 112 u8 peer_device_addr[ETH_ALEN]; 113 114 /** 115 * peer_interface_addr - P2P Interface Address of the peer 116 */ 117 u8 peer_interface_addr[ETH_ALEN]; 118 119 /** 120 * wps_method - WPS method to be used during provisioning 121 */ 122 enum p2p_wps_method wps_method; 123 124#define P2P_MAX_CHANNELS 50 125 126 /** 127 * freq_list - Zero-terminated list of possible operational channels 128 */ 129 int freq_list[P2P_MAX_CHANNELS]; 130 131 /** 132 * persistent_group - Whether the group should be made persistent 133 * 0 = not persistent 134 * 1 = persistent group without persistent reconnect 135 * 2 = persistent group with persistent reconnect 136 */ 137 int persistent_group; 138 139 /** 140 * peer_config_timeout - Peer configuration timeout (in 10 msec units) 141 */ 142 unsigned int peer_config_timeout; 143}; 144 145struct p2p_data; 146 147enum p2p_scan_type { 148 P2P_SCAN_SOCIAL, 149 P2P_SCAN_FULL, 150 P2P_SCAN_SOCIAL_PLUS_ONE 151}; 152 153#define P2P_MAX_WPS_VENDOR_EXT 10 154 155/** 156 * struct p2p_peer_info - P2P peer information 157 */ 158struct p2p_peer_info { 159 /** 160 * p2p_device_addr - P2P Device Address of the peer 161 */ 162 u8 p2p_device_addr[ETH_ALEN]; 163 164 /** 165 * pri_dev_type - Primary Device Type 166 */ 167 u8 pri_dev_type[8]; 168 169 /** 170 * device_name - Device Name (0..32 octets encoded in UTF-8) 171 */ 172 char device_name[33]; 173 174 /** 175 * manufacturer - Manufacturer (0..64 octets encoded in UTF-8) 176 */ 177 char manufacturer[65]; 178 179 /** 180 * model_name - Model Name (0..32 octets encoded in UTF-8) 181 */ 182 char model_name[33]; 183 184 /** 185 * model_number - Model Number (0..32 octets encoded in UTF-8) 186 */ 187 char model_number[33]; 188 189 /** 190 * serial_number - Serial Number (0..32 octets encoded in UTF-8) 191 */ 192 char serial_number[33]; 193 194 /** 195 * level - Signal level 196 */ 197 int level; 198 199 /** 200 * config_methods - WPS Configuration Methods 201 */ 202 u16 config_methods; 203 204 /** 205 * dev_capab - Device Capabilities 206 */ 207 u8 dev_capab; 208 209 /** 210 * group_capab - Group Capabilities 211 */ 212 u8 group_capab; 213 214 /** 215 * wps_sec_dev_type_list - WPS secondary device type list 216 * 217 * This list includes from 0 to 16 Secondary Device Types as indicated 218 * by wps_sec_dev_type_list_len (8 * number of types). 219 */ 220 u8 wps_sec_dev_type_list[128]; 221 222 /** 223 * wps_sec_dev_type_list_len - Length of secondary device type list 224 */ 225 size_t wps_sec_dev_type_list_len; 226 227 struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT]; 228 229 /** 230 * wfd_subelems - Wi-Fi Display subelements from WFD IE(s) 231 */ 232 struct wpabuf *wfd_subelems; 233}; 234 235enum p2p_prov_disc_status { 236 P2P_PROV_DISC_SUCCESS, 237 P2P_PROV_DISC_TIMEOUT, 238 P2P_PROV_DISC_REJECTED, 239 P2P_PROV_DISC_TIMEOUT_JOIN, 240}; 241 242struct p2p_channel { 243 u8 op_class; 244 u8 chan; 245}; 246 247/** 248 * struct p2p_config - P2P configuration 249 * 250 * This configuration is provided to the P2P module during initialization with 251 * p2p_init(). 252 */ 253struct p2p_config { 254 /** 255 * country - Country code to use in P2P operations 256 */ 257 char country[3]; 258 259 /** 260 * reg_class - Regulatory class for own listen channel 261 */ 262 u8 reg_class; 263 264 /** 265 * channel - Own listen channel 266 */ 267 u8 channel; 268 269 /** 270 * channel_forced - the listen channel was forced by configuration 271 * or by control interface and cannot be overridden 272 */ 273 u8 channel_forced; 274 275 /** 276 * Regulatory class for own operational channel 277 */ 278 u8 op_reg_class; 279 280 /** 281 * op_channel - Own operational channel 282 */ 283 u8 op_channel; 284 285 /** 286 * cfg_op_channel - Whether op_channel is hardcoded in configuration 287 */ 288 u8 cfg_op_channel; 289 290 /** 291 * channels - Own supported regulatory classes and channels 292 * 293 * List of supposerted channels per regulatory class. The regulatory 294 * classes are defined in IEEE Std 802.11-2007 Annex J and the 295 * numbering of the clases depends on the configured country code. 296 */ 297 struct p2p_channels channels; 298 299 /** 300 * cli_channels - Additional client channels 301 * 302 * This list of channels (if any) will be used when advertising local 303 * channels during GO Negotiation or Invitation for the cases where the 304 * local end may become the client. This may allow the peer to become a 305 * GO on additional channels if it supports these options. The main use 306 * case for this is to include passive-scan channels on devices that may 307 * not know their current location and have configured most channels to 308 * not allow initiation of radition (i.e., another device needs to take 309 * master responsibilities). 310 */ 311 struct p2p_channels cli_channels; 312 313 /** 314 * num_pref_chan - Number of pref_chan entries 315 */ 316 unsigned int num_pref_chan; 317 318 /** 319 * pref_chan - Preferred channels for GO Negotiation 320 */ 321 struct p2p_channel *pref_chan; 322 323 /** 324 * pri_dev_type - Primary Device Type (see WPS) 325 */ 326 u8 pri_dev_type[8]; 327 328 /** 329 * P2P_SEC_DEVICE_TYPES - Maximum number of secondary device types 330 */ 331#define P2P_SEC_DEVICE_TYPES 5 332 333 /** 334 * sec_dev_type - Optional secondary device types 335 */ 336 u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8]; 337 338 /** 339 * num_sec_dev_types - Number of sec_dev_type entries 340 */ 341 size_t num_sec_dev_types; 342 343 /** 344 * dev_addr - P2P Device Address 345 */ 346 u8 dev_addr[ETH_ALEN]; 347 348 /** 349 * dev_name - Device Name 350 */ 351 char *dev_name; 352 353 char *manufacturer; 354 char *model_name; 355 char *model_number; 356 char *serial_number; 357 358 u8 uuid[16]; 359 u16 config_methods; 360 361 /** 362 * concurrent_operations - Whether concurrent operations are supported 363 */ 364 int concurrent_operations; 365 366 /** 367 * max_peers - Maximum number of discovered peers to remember 368 * 369 * If more peers are discovered, older entries will be removed to make 370 * room for the new ones. 371 */ 372 size_t max_peers; 373 374 /** 375 * p2p_intra_bss - Intra BSS communication is supported 376 */ 377 int p2p_intra_bss; 378 379 /** 380 * ssid_postfix - Postfix data to add to the SSID 381 * 382 * This data will be added to the end of the SSID after the 383 * DIRECT-<random two octets> prefix. 384 */ 385 u8 ssid_postfix[32 - 9]; 386 387 /** 388 * ssid_postfix_len - Length of the ssid_postfix data 389 */ 390 size_t ssid_postfix_len; 391 392 /** 393 * max_listen - Maximum listen duration in ms 394 */ 395 unsigned int max_listen; 396 397 /** 398 * cb_ctx - Context to use with callback functions 399 */ 400 void *cb_ctx; 401 402 /** 403 * debug_print - Debug print 404 * @ctx: Callback context from cb_ctx 405 * @level: Debug verbosity level (MSG_*) 406 * @msg: Debug message 407 */ 408 void (*debug_print)(void *ctx, int level, const char *msg); 409 410 411 /* Callbacks to request lower layer driver operations */ 412 413 /** 414 * p2p_scan - Request a P2P scan/search 415 * @ctx: Callback context from cb_ctx 416 * @type: Scan type 417 * @freq: Specific frequency (MHz) to scan or 0 for no restriction 418 * @num_req_dev_types: Number of requested device types 419 * @req_dev_types: Array containing requested device types 420 * @dev_id: Device ID to search for or %NULL to find all devices 421 * @pw_id: Device Password ID 422 * Returns: 0 on success, -1 on failure 423 * 424 * This callback function is used to request a P2P scan or search 425 * operation to be completed. Type type argument specifies which type 426 * of scan is to be done. @P2P_SCAN_SOCIAL indicates that only the 427 * social channels (1, 6, 11) should be scanned. @P2P_SCAN_FULL 428 * indicates that all channels are to be scanned. 429 * @P2P_SCAN_SOCIAL_PLUS_ONE request scan of all the social channels 430 * plus one extra channel specified by freq. 431 * 432 * The full scan is used for the initial scan to find group owners from 433 * all. The other types are used during search phase scan of the social 434 * channels (with potential variation if the Listen channel of the 435 * target peer is known or if other channels are scanned in steps). 436 * 437 * The scan results are returned after this call by calling 438 * p2p_scan_res_handler() for each scan result that has a P2P IE and 439 * then calling p2p_scan_res_handled() to indicate that all scan 440 * results have been indicated. 441 */ 442 int (*p2p_scan)(void *ctx, enum p2p_scan_type type, int freq, 443 unsigned int num_req_dev_types, 444 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id); 445 446 /** 447 * send_probe_resp - Transmit a Probe Response frame 448 * @ctx: Callback context from cb_ctx 449 * @buf: Probe Response frame (including the header and body) 450 * Returns: 0 on success, -1 on failure 451 * 452 * This function is used to reply to Probe Request frames that were 453 * indicated with a call to p2p_probe_req_rx(). The response is to be 454 * sent on the same channel or to be dropped if the driver is not 455 * anymore listening to Probe Request frames. 456 * 457 * Alternatively, the responsibility for building the Probe Response 458 * frames in Listen state may be in another system component in which 459 * case this function need to be implemented (i.e., the function 460 * pointer can be %NULL). The WPS and P2P IEs to be added for Probe 461 * Response frames in such a case are available from the 462 * start_listen() callback. It should be noted that the received Probe 463 * Request frames must be indicated by calling p2p_probe_req_rx() even 464 * if this send_probe_resp() is not used. 465 */ 466 int (*send_probe_resp)(void *ctx, const struct wpabuf *buf); 467 468 /** 469 * send_action - Transmit an Action frame 470 * @ctx: Callback context from cb_ctx 471 * @freq: Frequency in MHz for the channel on which to transmit 472 * @dst: Destination MAC address (Address 1) 473 * @src: Source MAC address (Address 2) 474 * @bssid: BSSID (Address 3) 475 * @buf: Frame body (starting from Category field) 476 * @len: Length of buf in octets 477 * @wait_time: How many msec to wait for a response frame 478 * Returns: 0 on success, -1 on failure 479 * 480 * The Action frame may not be transmitted immediately and the status 481 * of the transmission must be reported by calling 482 * p2p_send_action_cb() once the frame has either been transmitted or 483 * it has been dropped due to excessive retries or other failure to 484 * transmit. 485 */ 486 int (*send_action)(void *ctx, unsigned int freq, const u8 *dst, 487 const u8 *src, const u8 *bssid, const u8 *buf, 488 size_t len, unsigned int wait_time); 489 490 /** 491 * send_action_done - Notify that Action frame sequence was completed 492 * @ctx: Callback context from cb_ctx 493 * 494 * This function is called when the Action frame sequence that was 495 * started with send_action() has been completed, i.e., when there is 496 * no need to wait for a response from the destination peer anymore. 497 */ 498 void (*send_action_done)(void *ctx); 499 500 /** 501 * start_listen - Start Listen state 502 * @ctx: Callback context from cb_ctx 503 * @freq: Frequency of the listen channel in MHz 504 * @duration: Duration for the Listen state in milliseconds 505 * @probe_resp_ie: IE(s) to be added to Probe Response frames 506 * Returns: 0 on success, -1 on failure 507 * 508 * This Listen state may not start immediately since the driver may 509 * have other pending operations to complete first. Once the Listen 510 * state has started, p2p_listen_cb() must be called to notify the P2P 511 * module. Once the Listen state is stopped, p2p_listen_end() must be 512 * called to notify the P2P module that the driver is not in the Listen 513 * state anymore. 514 * 515 * If the send_probe_resp() is not used for generating the response, 516 * the IEs from probe_resp_ie need to be added to the end of the Probe 517 * Response frame body. If send_probe_resp() is used, the probe_resp_ie 518 * information can be ignored. 519 */ 520 int (*start_listen)(void *ctx, unsigned int freq, 521 unsigned int duration, 522 const struct wpabuf *probe_resp_ie); 523 /** 524 * stop_listen - Stop Listen state 525 * @ctx: Callback context from cb_ctx 526 * 527 * This callback can be used to stop a Listen state operation that was 528 * previously requested with start_listen(). 529 */ 530 void (*stop_listen)(void *ctx); 531 532 /** 533 * get_noa - Get current Notice of Absence attribute payload 534 * @ctx: Callback context from cb_ctx 535 * @interface_addr: P2P Interface Address of the GO 536 * @buf: Buffer for returning NoA 537 * @buf_len: Buffer length in octets 538 * Returns: Number of octets used in buf, 0 to indicate no NoA is being 539 * advertized, or -1 on failure 540 * 541 * This function is used to fetch the current Notice of Absence 542 * attribute value from GO. 543 */ 544 int (*get_noa)(void *ctx, const u8 *interface_addr, u8 *buf, 545 size_t buf_len); 546 547 /* Callbacks to notify events to upper layer management entity */ 548 549 /** 550 * dev_found - Notification of a found P2P Device 551 * @ctx: Callback context from cb_ctx 552 * @addr: Source address of the message triggering this notification 553 * @info: P2P peer information 554 * @new_device: Inform if the peer is newly found 555 * 556 * This callback is used to notify that a new P2P Device has been 557 * found. This may happen, e.g., during Search state based on scan 558 * results or during Listen state based on receive Probe Request and 559 * Group Owner Negotiation Request. 560 */ 561 void (*dev_found)(void *ctx, const u8 *addr, 562 const struct p2p_peer_info *info, 563 int new_device); 564 565 /** 566 * dev_lost - Notification of a lost P2P Device 567 * @ctx: Callback context from cb_ctx 568 * @dev_addr: P2P Device Address of the lost P2P Device 569 * 570 * This callback is used to notify that a P2P Device has been deleted. 571 */ 572 void (*dev_lost)(void *ctx, const u8 *dev_addr); 573 574 /** 575 * find_stopped - Notification of a p2p_find operation stopping 576 * @ctx: Callback context from cb_ctx 577 */ 578 void (*find_stopped)(void *ctx); 579 580 /** 581 * go_neg_req_rx - Notification of a receive GO Negotiation Request 582 * @ctx: Callback context from cb_ctx 583 * @src: Source address of the message triggering this notification 584 * @dev_passwd_id: WPS Device Password ID 585 * 586 * This callback is used to notify that a P2P Device is requesting 587 * group owner negotiation with us, but we do not have all the 588 * necessary information to start GO Negotiation. This indicates that 589 * the local user has not authorized the connection yet by providing a 590 * PIN or PBC button press. This information can be provided with a 591 * call to p2p_connect(). 592 */ 593 void (*go_neg_req_rx)(void *ctx, const u8 *src, u16 dev_passwd_id); 594 595 /** 596 * go_neg_completed - Notification of GO Negotiation results 597 * @ctx: Callback context from cb_ctx 598 * @res: GO Negotiation results 599 * 600 * This callback is used to notify that Group Owner Negotiation has 601 * been completed. Non-zero struct p2p_go_neg_results::status indicates 602 * failed negotiation. In case of success, this function is responsible 603 * for creating a new group interface (or using the existing interface 604 * depending on driver features), setting up the group interface in 605 * proper mode based on struct p2p_go_neg_results::role_go and 606 * initializing WPS provisioning either as a Registrar (if GO) or as an 607 * Enrollee. Successful WPS provisioning must be indicated by calling 608 * p2p_wps_success_cb(). The callee is responsible for timing out group 609 * formation if WPS provisioning cannot be completed successfully 610 * within 15 seconds. 611 */ 612 void (*go_neg_completed)(void *ctx, struct p2p_go_neg_results *res); 613 614 /** 615 * sd_request - Callback on Service Discovery Request 616 * @ctx: Callback context from cb_ctx 617 * @freq: Frequency (in MHz) of the channel 618 * @sa: Source address of the request 619 * @dialog_token: Dialog token 620 * @update_indic: Service Update Indicator from the source of request 621 * @tlvs: P2P Service Request TLV(s) 622 * @tlvs_len: Length of tlvs buffer in octets 623 * 624 * This callback is used to indicate reception of a service discovery 625 * request. Response to the query must be indicated by calling 626 * p2p_sd_response() with the context information from the arguments to 627 * this callback function. 628 * 629 * This callback handler can be set to %NULL to indicate that service 630 * discovery is not supported. 631 */ 632 void (*sd_request)(void *ctx, int freq, const u8 *sa, u8 dialog_token, 633 u16 update_indic, const u8 *tlvs, size_t tlvs_len); 634 635 /** 636 * sd_response - Callback on Service Discovery Response 637 * @ctx: Callback context from cb_ctx 638 * @sa: Source address of the request 639 * @update_indic: Service Update Indicator from the source of response 640 * @tlvs: P2P Service Response TLV(s) 641 * @tlvs_len: Length of tlvs buffer in octets 642 * 643 * This callback is used to indicate reception of a service discovery 644 * response. This callback handler can be set to %NULL if no service 645 * discovery requests are used. The information provided with this call 646 * is replies to the queries scheduled with p2p_sd_request(). 647 */ 648 void (*sd_response)(void *ctx, const u8 *sa, u16 update_indic, 649 const u8 *tlvs, size_t tlvs_len); 650 651 /** 652 * prov_disc_req - Callback on Provisiong Discovery Request 653 * @ctx: Callback context from cb_ctx 654 * @peer: Source address of the request 655 * @config_methods: Requested WPS Config Method 656 * @dev_addr: P2P Device Address of the found P2P Device 657 * @pri_dev_type: Primary Device Type 658 * @dev_name: Device Name 659 * @supp_config_methods: Supported configuration Methods 660 * @dev_capab: Device Capabilities 661 * @group_capab: Group Capabilities 662 * @group_id: P2P Group ID (or %NULL if not included) 663 * @group_id_len: Length of P2P Group ID 664 * 665 * This callback is used to indicate reception of a Provision Discovery 666 * Request frame that the P2P module accepted. 667 */ 668 void (*prov_disc_req)(void *ctx, const u8 *peer, u16 config_methods, 669 const u8 *dev_addr, const u8 *pri_dev_type, 670 const char *dev_name, u16 supp_config_methods, 671 u8 dev_capab, u8 group_capab, 672 const u8 *group_id, size_t group_id_len); 673 674 /** 675 * prov_disc_resp - Callback on Provisiong Discovery Response 676 * @ctx: Callback context from cb_ctx 677 * @peer: Source address of the response 678 * @config_methods: Value from p2p_prov_disc_req() or 0 on failure 679 * 680 * This callback is used to indicate reception of a Provision Discovery 681 * Response frame for a pending request scheduled with 682 * p2p_prov_disc_req(). This callback handler can be set to %NULL if 683 * provision discovery is not used. 684 */ 685 void (*prov_disc_resp)(void *ctx, const u8 *peer, u16 config_methods); 686 687 /** 688 * prov_disc_fail - Callback on Provision Discovery failure 689 * @ctx: Callback context from cb_ctx 690 * @peer: Source address of the response 691 * @status: Cause of failure, will not be %P2P_PROV_DISC_SUCCESS 692 * 693 * This callback is used to indicate either a failure or no response 694 * to an earlier provision discovery request. 695 * 696 * This callback handler can be set to %NULL if provision discovery 697 * is not used or failures do not need to be indicated. 698 */ 699 void (*prov_disc_fail)(void *ctx, const u8 *peer, 700 enum p2p_prov_disc_status status); 701 702 /** 703 * invitation_process - Optional callback for processing Invitations 704 * @ctx: Callback context from cb_ctx 705 * @sa: Source address of the Invitation Request 706 * @bssid: P2P Group BSSID from the request or %NULL if not included 707 * @go_dev_addr: GO Device Address from P2P Group ID 708 * @ssid: SSID from P2P Group ID 709 * @ssid_len: Length of ssid buffer in octets 710 * @go: Variable for returning whether the local end is GO in the group 711 * @group_bssid: Buffer for returning P2P Group BSSID (if local end GO) 712 * @force_freq: Variable for returning forced frequency for the group 713 * @persistent_group: Whether this is an invitation to reinvoke a 714 * persistent group (instead of invitation to join an active 715 * group) 716 * @channels: Available operating channels for the group 717 * @dev_pw_id: Device Password ID for NFC static handover or -1 if not 718 * used 719 * Returns: Status code (P2P_SC_*) 720 * 721 * This optional callback can be used to implement persistent reconnect 722 * by allowing automatic restarting of persistent groups without user 723 * interaction. If this callback is not implemented (i.e., is %NULL), 724 * the received Invitation Request frames are replied with 725 * %P2P_SC_REQ_RECEIVED status and indicated to upper layer with the 726 * invitation_result() callback. 727 * 728 * If the requested parameters are acceptable and the group is known, 729 * %P2P_SC_SUCCESS may be returned. If the requested group is unknown, 730 * %P2P_SC_FAIL_UNKNOWN_GROUP should be returned. %P2P_SC_REQ_RECEIVED 731 * can be returned if there is not enough data to provide immediate 732 * response, i.e., if some sort of user interaction is needed. The 733 * invitation_received() callback will be called in that case 734 * immediately after this call. 735 */ 736 u8 (*invitation_process)(void *ctx, const u8 *sa, const u8 *bssid, 737 const u8 *go_dev_addr, const u8 *ssid, 738 size_t ssid_len, int *go, u8 *group_bssid, 739 int *force_freq, int persistent_group, 740 const struct p2p_channels *channels, 741 int dev_pw_id); 742 743 /** 744 * invitation_received - Callback on Invitation Request RX 745 * @ctx: Callback context from cb_ctx 746 * @sa: Source address of the Invitation Request 747 * @bssid: P2P Group BSSID or %NULL if not received 748 * @ssid: SSID of the group 749 * @ssid_len: Length of ssid in octets 750 * @go_dev_addr: GO Device Address 751 * @status: Response Status 752 * @op_freq: Operational frequency for the group 753 * 754 * This callback is used to indicate sending of an Invitation Response 755 * for a received Invitation Request. If status == 0 (success), the 756 * upper layer code is responsible for starting the group. status == 1 757 * indicates need to get user authorization for the group. Other status 758 * values indicate that the invitation request was rejected. 759 */ 760 void (*invitation_received)(void *ctx, const u8 *sa, const u8 *bssid, 761 const u8 *ssid, size_t ssid_len, 762 const u8 *go_dev_addr, u8 status, 763 int op_freq); 764 765 /** 766 * invitation_result - Callback on Invitation result 767 * @ctx: Callback context from cb_ctx 768 * @status: Negotiation result (Status Code) 769 * @bssid: P2P Group BSSID or %NULL if not received 770 * @channels: Available operating channels for the group 771 * @addr: Peer address 772 * @freq: Frequency (in MHz) indicated during invitation or 0 773 * @peer_oper_freq: Operating frequency (in MHz) advertized by the peer 774 * during invitation or 0 775 * 776 * This callback is used to indicate result of an Invitation procedure 777 * started with a call to p2p_invite(). The indicated status code is 778 * the value received from the peer in Invitation Response with 0 779 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a 780 * local failure in transmitting the Invitation Request. 781 */ 782 void (*invitation_result)(void *ctx, int status, const u8 *bssid, 783 const struct p2p_channels *channels, 784 const u8 *addr, int freq, int peer_oper_freq); 785 786 /** 787 * go_connected - Check whether we are connected to a GO 788 * @ctx: Callback context from cb_ctx 789 * @dev_addr: P2P Device Address of a GO 790 * Returns: 1 if we are connected as a P2P client to the specified GO 791 * or 0 if not. 792 */ 793 int (*go_connected)(void *ctx, const u8 *dev_addr); 794 795 /** 796 * presence_resp - Callback on Presence Response 797 * @ctx: Callback context from cb_ctx 798 * @src: Source address (GO's P2P Interface Address) 799 * @status: Result of the request (P2P_SC_*) 800 * @noa: Returned NoA value 801 * @noa_len: Length of the NoA buffer in octets 802 */ 803 void (*presence_resp)(void *ctx, const u8 *src, u8 status, 804 const u8 *noa, size_t noa_len); 805 806 /** 807 * is_concurrent_session_active - Check whether concurrent session is 808 * active on other virtual interfaces 809 * @ctx: Callback context from cb_ctx 810 * Returns: 1 if concurrent session is active on other virtual interface 811 * or 0 if not. 812 */ 813 int (*is_concurrent_session_active)(void *ctx); 814 815 /** 816 * is_p2p_in_progress - Check whether P2P operation is in progress 817 * @ctx: Callback context from cb_ctx 818 * Returns: 1 if P2P operation (e.g., group formation) is in progress 819 * or 0 if not. 820 */ 821 int (*is_p2p_in_progress)(void *ctx); 822}; 823 824 825/* P2P module initialization/deinitialization */ 826 827/** 828 * p2p_init - Initialize P2P module 829 * @cfg: P2P module configuration 830 * Returns: Pointer to private data or %NULL on failure 831 * 832 * This function is used to initialize global P2P module context (one per 833 * device). The P2P module will keep a copy of the configuration data, so the 834 * caller does not need to maintain this structure. However, the callback 835 * functions and the context parameters to them must be kept available until 836 * the P2P module is deinitialized with p2p_deinit(). 837 */ 838struct p2p_data * p2p_init(const struct p2p_config *cfg); 839 840/** 841 * p2p_deinit - Deinitialize P2P module 842 * @p2p: P2P module context from p2p_init() 843 */ 844void p2p_deinit(struct p2p_data *p2p); 845 846/** 847 * p2p_flush - Flush P2P module state 848 * @p2p: P2P module context from p2p_init() 849 * 850 * This command removes the P2P module state like peer device entries. 851 */ 852void p2p_flush(struct p2p_data *p2p); 853 854/** 855 * p2p_unauthorize - Unauthorize the specified peer device 856 * @p2p: P2P module context from p2p_init() 857 * @addr: P2P peer entry to be unauthorized 858 * Returns: 0 on success, -1 on failure 859 * 860 * This command removes any connection authorization from the specified P2P 861 * peer device address. This can be used, e.g., to cancel effect of a previous 862 * p2p_authorize() or p2p_connect() call that has not yet resulted in completed 863 * GO Negotiation. 864 */ 865int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr); 866 867/** 868 * p2p_set_dev_name - Set device name 869 * @p2p: P2P module context from p2p_init() 870 * Returns: 0 on success, -1 on failure 871 * 872 * This function can be used to update the P2P module configuration with 873 * information that was not available at the time of the p2p_init() call. 874 */ 875int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name); 876 877int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer); 878int p2p_set_model_name(struct p2p_data *p2p, const char *model_name); 879int p2p_set_model_number(struct p2p_data *p2p, const char *model_number); 880int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number); 881 882void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods); 883void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid); 884 885/** 886 * p2p_set_pri_dev_type - Set primary device type 887 * @p2p: P2P module context from p2p_init() 888 * Returns: 0 on success, -1 on failure 889 * 890 * This function can be used to update the P2P module configuration with 891 * information that was not available at the time of the p2p_init() call. 892 */ 893int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type); 894 895/** 896 * p2p_set_sec_dev_types - Set secondary device types 897 * @p2p: P2P module context from p2p_init() 898 * Returns: 0 on success, -1 on failure 899 * 900 * This function can be used to update the P2P module configuration with 901 * information that was not available at the time of the p2p_init() call. 902 */ 903int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8], 904 size_t num_dev_types); 905 906int p2p_set_country(struct p2p_data *p2p, const char *country); 907 908 909/* Commands from upper layer management entity */ 910 911enum p2p_discovery_type { 912 P2P_FIND_START_WITH_FULL, 913 P2P_FIND_ONLY_SOCIAL, 914 P2P_FIND_PROGRESSIVE 915}; 916 917/** 918 * p2p_find - Start P2P Find (Device Discovery) 919 * @p2p: P2P module context from p2p_init() 920 * @timeout: Timeout for find operation in seconds or 0 for no timeout 921 * @type: Device Discovery type 922 * @num_req_dev_types: Number of requested device types 923 * @req_dev_types: Requested device types array, must be an array 924 * containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no 925 * requested device types. 926 * @dev_id: Device ID to search for or %NULL to find all devices 927 * @search_delay: Extra delay in milliseconds between search iterations 928 * Returns: 0 on success, -1 on failure 929 */ 930int p2p_find(struct p2p_data *p2p, unsigned int timeout, 931 enum p2p_discovery_type type, 932 unsigned int num_req_dev_types, const u8 *req_dev_types, 933 const u8 *dev_id, unsigned int search_delay); 934 935/** 936 * p2p_stop_find - Stop P2P Find (Device Discovery) 937 * @p2p: P2P module context from p2p_init() 938 */ 939void p2p_stop_find(struct p2p_data *p2p); 940 941/** 942 * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq 943 * @p2p: P2P module context from p2p_init() 944 * @freq: Frequency in MHz for next operation 945 * 946 * This is like p2p_stop_find(), but Listen state is not stopped if we are 947 * already on the same frequency. 948 */ 949void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq); 950 951/** 952 * p2p_listen - Start P2P Listen state for specified duration 953 * @p2p: P2P module context from p2p_init() 954 * @timeout: Listen state duration in milliseconds 955 * Returns: 0 on success, -1 on failure 956 * 957 * This function can be used to request the P2P module to keep the device 958 * discoverable on the listen channel for an extended set of time. At least in 959 * its current form, this is mainly used for testing purposes and may not be of 960 * much use for normal P2P operations. 961 */ 962int p2p_listen(struct p2p_data *p2p, unsigned int timeout); 963 964/** 965 * p2p_stop_listen - Stop P2P Listen 966 * @p2p: P2P module context from p2p_init() 967 */ 968void p2p_stop_listen(struct p2p_data *p2p); 969 970/** 971 * p2p_connect - Start P2P group formation (GO negotiation) 972 * @p2p: P2P module context from p2p_init() 973 * @peer_addr: MAC address of the peer P2P client 974 * @wps_method: WPS method to be used in provisioning 975 * @go_intent: Local GO intent value (1..15) 976 * @own_interface_addr: Intended interface address to use with the group 977 * @force_freq: The only allowed channel frequency in MHz or 0 978 * @persistent_group: Whether to create a persistent group (0 = no, 1 = 979 * persistent group without persistent reconnect, 2 = persistent group with 980 * persistent reconnect) 981 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate 982 * a new SSID 983 * @force_ssid_len: Length of $force_ssid buffer 984 * @pd_before_go_neg: Whether to send Provision Discovery prior to GO 985 * Negotiation as an interoperability workaround when initiating group 986 * formation 987 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 988 * force_freq == 0) 989 * Returns: 0 on success, -1 on failure 990 */ 991int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr, 992 enum p2p_wps_method wps_method, 993 int go_intent, const u8 *own_interface_addr, 994 unsigned int force_freq, int persistent_group, 995 const u8 *force_ssid, size_t force_ssid_len, 996 int pd_before_go_neg, unsigned int pref_freq, u16 oob_pw_id); 997 998/** 999 * p2p_authorize - Authorize P2P group formation (GO negotiation) 1000 * @p2p: P2P module context from p2p_init() 1001 * @peer_addr: MAC address of the peer P2P client 1002 * @wps_method: WPS method to be used in provisioning 1003 * @go_intent: Local GO intent value (1..15) 1004 * @own_interface_addr: Intended interface address to use with the group 1005 * @force_freq: The only allowed channel frequency in MHz or 0 1006 * @persistent_group: Whether to create a persistent group (0 = no, 1 = 1007 * persistent group without persistent reconnect, 2 = persistent group with 1008 * persistent reconnect) 1009 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate 1010 * a new SSID 1011 * @force_ssid_len: Length of $force_ssid buffer 1012 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 1013 * force_freq == 0) 1014 * Returns: 0 on success, -1 on failure 1015 * 1016 * This is like p2p_connect(), but the actual group negotiation is not 1017 * initiated automatically, i.e., the other end is expected to do that. 1018 */ 1019int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr, 1020 enum p2p_wps_method wps_method, 1021 int go_intent, const u8 *own_interface_addr, 1022 unsigned int force_freq, int persistent_group, 1023 const u8 *force_ssid, size_t force_ssid_len, 1024 unsigned int pref_freq, u16 oob_pw_id); 1025 1026/** 1027 * p2p_reject - Reject peer device (explicitly block connection attempts) 1028 * @p2p: P2P module context from p2p_init() 1029 * @peer_addr: MAC address of the peer P2P client 1030 * Returns: 0 on success, -1 on failure 1031 */ 1032int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr); 1033 1034/** 1035 * p2p_prov_disc_req - Send Provision Discovery Request 1036 * @p2p: P2P module context from p2p_init() 1037 * @peer_addr: MAC address of the peer P2P client 1038 * @config_methods: WPS Config Methods value (only one bit set) 1039 * @join: Whether this is used by a client joining an active group 1040 * @force_freq: Forced TX frequency for the frame (mainly for the join case) 1041 * @user_initiated_pd: Flag to indicate if initiated by user or not 1042 * Returns: 0 on success, -1 on failure 1043 * 1044 * This function can be used to request a discovered P2P peer to display a PIN 1045 * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us 1046 * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame 1047 * is transmitted once immediately and if no response is received, the frame 1048 * will be sent again whenever the target device is discovered during device 1049 * dsicovery (start with a p2p_find() call). Response from the peer is 1050 * indicated with the p2p_config::prov_disc_resp() callback. 1051 */ 1052int p2p_prov_disc_req(struct p2p_data *p2p, const u8 *peer_addr, 1053 u16 config_methods, int join, int force_freq, 1054 int user_initiated_pd); 1055 1056/** 1057 * p2p_sd_request - Schedule a service discovery query 1058 * @p2p: P2P module context from p2p_init() 1059 * @dst: Destination peer or %NULL to apply for all peers 1060 * @tlvs: P2P Service Query TLV(s) 1061 * Returns: Reference to the query or %NULL on failure 1062 * 1063 * Response to the query is indicated with the p2p_config::sd_response() 1064 * callback. 1065 */ 1066void * p2p_sd_request(struct p2p_data *p2p, const u8 *dst, 1067 const struct wpabuf *tlvs); 1068 1069#ifdef CONFIG_WIFI_DISPLAY 1070void * p2p_sd_request_wfd(struct p2p_data *p2p, const u8 *dst, 1071 const struct wpabuf *tlvs); 1072#endif /* CONFIG_WIFI_DISPLAY */ 1073 1074/** 1075 * p2p_sd_cancel_request - Cancel a pending service discovery query 1076 * @p2p: P2P module context from p2p_init() 1077 * @req: Query reference from p2p_sd_request() 1078 * Returns: 0 if request for cancelled; -1 if not found 1079 */ 1080int p2p_sd_cancel_request(struct p2p_data *p2p, void *req); 1081 1082/** 1083 * p2p_sd_response - Send response to a service discovery query 1084 * @p2p: P2P module context from p2p_init() 1085 * @freq: Frequency from p2p_config::sd_request() callback 1086 * @dst: Destination address from p2p_config::sd_request() callback 1087 * @dialog_token: Dialog token from p2p_config::sd_request() callback 1088 * @resp_tlvs: P2P Service Response TLV(s) 1089 * 1090 * This function is called as a response to the request indicated with 1091 * p2p_config::sd_request() callback. 1092 */ 1093void p2p_sd_response(struct p2p_data *p2p, int freq, const u8 *dst, 1094 u8 dialog_token, const struct wpabuf *resp_tlvs); 1095 1096/** 1097 * p2p_sd_service_update - Indicate a change in local services 1098 * @p2p: P2P module context from p2p_init() 1099 * 1100 * This function needs to be called whenever there is a change in availability 1101 * of the local services. This will increment the Service Update Indicator 1102 * value which will be used in SD Request and Response frames. 1103 */ 1104void p2p_sd_service_update(struct p2p_data *p2p); 1105 1106 1107enum p2p_invite_role { 1108 P2P_INVITE_ROLE_GO, 1109 P2P_INVITE_ROLE_ACTIVE_GO, 1110 P2P_INVITE_ROLE_CLIENT 1111}; 1112 1113/** 1114 * p2p_invite - Invite a P2P Device into a group 1115 * @p2p: P2P module context from p2p_init() 1116 * @peer: Device Address of the peer P2P Device 1117 * @role: Local role in the group 1118 * @bssid: Group BSSID or %NULL if not known 1119 * @ssid: Group SSID 1120 * @ssid_len: Length of ssid in octets 1121 * @force_freq: The only allowed channel frequency in MHz or 0 1122 * @go_dev_addr: Forced GO Device Address or %NULL if none 1123 * @persistent_group: Whether this is to reinvoke a persistent group 1124 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 1125 * force_freq == 0) 1126 * @dev_pw_id: Device Password ID from OOB Device Password (NFC) static handover 1127 * case or -1 if not used 1128 * Returns: 0 on success, -1 on failure 1129 */ 1130int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role, 1131 const u8 *bssid, const u8 *ssid, size_t ssid_len, 1132 unsigned int force_freq, const u8 *go_dev_addr, 1133 int persistent_group, unsigned int pref_freq, int dev_pw_id); 1134 1135/** 1136 * p2p_presence_req - Request GO presence 1137 * @p2p: P2P module context from p2p_init() 1138 * @go_interface_addr: GO P2P Interface Address 1139 * @own_interface_addr: Own P2P Interface Address for this group 1140 * @freq: Group operating frequence (in MHz) 1141 * @duration1: Preferred presence duration in microseconds 1142 * @interval1: Preferred presence interval in microseconds 1143 * @duration2: Acceptable presence duration in microseconds 1144 * @interval2: Acceptable presence interval in microseconds 1145 * Returns: 0 on success, -1 on failure 1146 * 1147 * If both duration and interval values are zero, the parameter pair is not 1148 * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0). 1149 */ 1150int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr, 1151 const u8 *own_interface_addr, unsigned int freq, 1152 u32 duration1, u32 interval1, u32 duration2, 1153 u32 interval2); 1154 1155/** 1156 * p2p_ext_listen - Set Extended Listen Timing 1157 * @p2p: P2P module context from p2p_init() 1158 * @freq: Group operating frequence (in MHz) 1159 * @period: Availability period in milliseconds (1-65535; 0 to disable) 1160 * @interval: Availability interval in milliseconds (1-65535; 0 to disable) 1161 * Returns: 0 on success, -1 on failure 1162 * 1163 * This function can be used to enable or disable (period = interval = 0) 1164 * Extended Listen Timing. When enabled, the P2P Device will become 1165 * discoverable (go into Listen State) every @interval milliseconds for at 1166 * least @period milliseconds. 1167 */ 1168int p2p_ext_listen(struct p2p_data *p2p, unsigned int period, 1169 unsigned int interval); 1170 1171/* Event notifications from upper layer management operations */ 1172 1173/** 1174 * p2p_wps_success_cb - Report successfully completed WPS provisioning 1175 * @p2p: P2P module context from p2p_init() 1176 * @mac_addr: Peer address 1177 * 1178 * This function is used to report successfully completed WPS provisioning 1179 * during group formation in both GO/Registrar and client/Enrollee roles. 1180 */ 1181void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr); 1182 1183/** 1184 * p2p_group_formation_failed - Report failed WPS provisioning 1185 * @p2p: P2P module context from p2p_init() 1186 * 1187 * This function is used to report failed group formation. This can happen 1188 * either due to failed WPS provisioning or due to 15 second timeout during 1189 * the provisioning phase. 1190 */ 1191void p2p_group_formation_failed(struct p2p_data *p2p); 1192 1193/** 1194 * p2p_get_provisioning_info - Get any stored provisioning info 1195 * @p2p: P2P module context from p2p_init() 1196 * @addr: Peer P2P Device Address 1197 * Returns: WPS provisioning information (WPS config method) or 0 if no 1198 * information is available 1199 * 1200 * This function is used to retrieve stored WPS provisioning info for the given 1201 * peer. 1202 */ 1203u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr); 1204 1205/** 1206 * p2p_clear_provisioning_info - Clear any stored provisioning info 1207 * @p2p: P2P module context from p2p_init() 1208 * @iface_addr: Peer P2P Device Address 1209 * 1210 * This function is used to clear stored WPS provisioning info for the given 1211 * peer. 1212 */ 1213void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr); 1214 1215 1216/* Event notifications from lower layer driver operations */ 1217 1218/** 1219 * enum p2p_probe_req_status 1220 * 1221 * @P2P_PREQ_MALFORMED: frame was not well-formed 1222 * @P2P_PREQ_NOT_LISTEN: device isn't in listen state, frame ignored 1223 * @P2P_PREQ_NOT_P2P: frame was not a P2P probe request 1224 * @P2P_PREQ_P2P_NOT_PROCESSED: frame was P2P but wasn't processed 1225 * @P2P_PREQ_P2P_PROCESSED: frame has been processed by P2P 1226 */ 1227enum p2p_probe_req_status { 1228 P2P_PREQ_MALFORMED, 1229 P2P_PREQ_NOT_LISTEN, 1230 P2P_PREQ_NOT_P2P, 1231 P2P_PREQ_NOT_PROCESSED, 1232 P2P_PREQ_PROCESSED 1233}; 1234 1235/** 1236 * p2p_probe_req_rx - Report reception of a Probe Request frame 1237 * @p2p: P2P module context from p2p_init() 1238 * @addr: Source MAC address 1239 * @dst: Destination MAC address if available or %NULL 1240 * @bssid: BSSID if available or %NULL 1241 * @ie: Information elements from the Probe Request frame body 1242 * @ie_len: Length of ie buffer in octets 1243 * Returns: value indicating the type and status of the probe request 1244 */ 1245enum p2p_probe_req_status 1246p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst, 1247 const u8 *bssid, const u8 *ie, size_t ie_len); 1248 1249/** 1250 * p2p_rx_action - Report received Action frame 1251 * @p2p: P2P module context from p2p_init() 1252 * @da: Destination address of the received Action frame 1253 * @sa: Source address of the received Action frame 1254 * @bssid: Address 3 of the received Action frame 1255 * @category: Category of the received Action frame 1256 * @data: Action frame body after the Category field 1257 * @len: Length of the data buffer in octets 1258 * @freq: Frequency (in MHz) on which the frame was received 1259 */ 1260void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa, 1261 const u8 *bssid, u8 category, 1262 const u8 *data, size_t len, int freq); 1263 1264/** 1265 * p2p_scan_res_handler - Indicate a P2P scan results 1266 * @p2p: P2P module context from p2p_init() 1267 * @bssid: BSSID of the scan result 1268 * @freq: Frequency of the channel on which the device was found in MHz 1269 * @rx_time: Time when the result was received 1270 * @level: Signal level (signal strength of the received Beacon/Probe Response 1271 * frame) 1272 * @ies: Pointer to IEs from the scan result 1273 * @ies_len: Length of the ies buffer 1274 * Returns: 0 to continue or 1 to stop scan result indication 1275 * 1276 * This function is called to indicate a scan result entry with P2P IE from a 1277 * scan requested with struct p2p_config::p2p_scan(). This can be called during 1278 * the actual scan process (i.e., whenever a new device is found) or as a 1279 * sequence of calls after the full scan has been completed. The former option 1280 * can result in optimized operations, but may not be supported by all 1281 * driver/firmware designs. The ies buffer need to include at least the P2P IE, 1282 * but it is recommended to include all IEs received from the device. The 1283 * caller does not need to check that the IEs contain a P2P IE before calling 1284 * this function since frames will be filtered internally if needed. 1285 * 1286 * This function will return 1 if it wants to stop scan result iteration (and 1287 * scan in general if it is still in progress). This is used to allow faster 1288 * start of a pending operation, e.g., to start a pending GO negotiation. 1289 */ 1290int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq, 1291 struct os_reltime *rx_time, int level, const u8 *ies, 1292 size_t ies_len); 1293 1294/** 1295 * p2p_scan_res_handled - Indicate end of scan results 1296 * @p2p: P2P module context from p2p_init() 1297 * 1298 * This function is called to indicate that all P2P scan results from a scan 1299 * have been reported with zero or more calls to p2p_scan_res_handler(). This 1300 * function must be called as a response to successful 1301 * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler() 1302 * calls stopped iteration. 1303 */ 1304void p2p_scan_res_handled(struct p2p_data *p2p); 1305 1306enum p2p_send_action_result { 1307 P2P_SEND_ACTION_SUCCESS /* Frame was send and acknowledged */, 1308 P2P_SEND_ACTION_NO_ACK /* Frame was sent, but not acknowledged */, 1309 P2P_SEND_ACTION_FAILED /* Frame was not sent due to a failure */ 1310}; 1311 1312/** 1313 * p2p_send_action_cb - Notify TX status of an Action frame 1314 * @p2p: P2P module context from p2p_init() 1315 * @freq: Channel frequency in MHz 1316 * @dst: Destination MAC address (Address 1) 1317 * @src: Source MAC address (Address 2) 1318 * @bssid: BSSID (Address 3) 1319 * @result: Result of the transmission attempt 1320 * 1321 * This function is used to indicate the result of an Action frame transmission 1322 * that was requested with struct p2p_config::send_action() callback. 1323 */ 1324void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst, 1325 const u8 *src, const u8 *bssid, 1326 enum p2p_send_action_result result); 1327 1328/** 1329 * p2p_listen_cb - Indicate the start of a requested Listen state 1330 * @p2p: P2P module context from p2p_init() 1331 * @freq: Listen channel frequency in MHz 1332 * @duration: Duration for the Listen state in milliseconds 1333 * 1334 * This function is used to indicate that a Listen state requested with 1335 * struct p2p_config::start_listen() callback has started. 1336 */ 1337void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq, 1338 unsigned int duration); 1339 1340/** 1341 * p2p_listen_end - Indicate the end of a requested Listen state 1342 * @p2p: P2P module context from p2p_init() 1343 * @freq: Listen channel frequency in MHz 1344 * Returns: 0 if no operations were started, 1 if an operation was started 1345 * 1346 * This function is used to indicate that a Listen state requested with 1347 * struct p2p_config::start_listen() callback has ended. 1348 */ 1349int p2p_listen_end(struct p2p_data *p2p, unsigned int freq); 1350 1351void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code, 1352 const u8 *ie, size_t ie_len); 1353 1354void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code, 1355 const u8 *ie, size_t ie_len); 1356 1357 1358/* Per-group P2P state for GO */ 1359 1360struct p2p_group; 1361 1362/** 1363 * struct p2p_group_config - P2P group configuration 1364 * 1365 * This configuration is provided to the P2P module during initialization of 1366 * the per-group information with p2p_group_init(). 1367 */ 1368struct p2p_group_config { 1369 /** 1370 * persistent_group - Whether the group is persistent 1371 * 0 = not a persistent group 1372 * 1 = persistent group without persistent reconnect 1373 * 2 = persistent group with persistent reconnect 1374 */ 1375 int persistent_group; 1376 1377 /** 1378 * interface_addr - P2P Interface Address of the group 1379 */ 1380 u8 interface_addr[ETH_ALEN]; 1381 1382 /** 1383 * max_clients - Maximum number of clients in the group 1384 */ 1385 unsigned int max_clients; 1386 1387 /** 1388 * ssid - Group SSID 1389 */ 1390 u8 ssid[32]; 1391 1392 /** 1393 * ssid_len - Length of SSID 1394 */ 1395 size_t ssid_len; 1396 1397 /** 1398 * freq - Operating channel of the group 1399 */ 1400 int freq; 1401 1402 /** 1403 * cb_ctx - Context to use with callback functions 1404 */ 1405 void *cb_ctx; 1406 1407 /** 1408 * ie_update - Notification of IE update 1409 * @ctx: Callback context from cb_ctx 1410 * @beacon_ies: P2P IE for Beacon frames or %NULL if no change 1411 * @proberesp_ies: P2P Ie for Probe Response frames 1412 * 1413 * P2P module uses this callback function to notify whenever the P2P IE 1414 * in Beacon or Probe Response frames should be updated based on group 1415 * events. 1416 * 1417 * The callee is responsible for freeing the returned buffer(s) with 1418 * wpabuf_free(). 1419 */ 1420 void (*ie_update)(void *ctx, struct wpabuf *beacon_ies, 1421 struct wpabuf *proberesp_ies); 1422 1423 /** 1424 * idle_update - Notification of changes in group idle state 1425 * @ctx: Callback context from cb_ctx 1426 * @idle: Whether the group is idle (no associated stations) 1427 */ 1428 void (*idle_update)(void *ctx, int idle); 1429}; 1430 1431/** 1432 * p2p_group_init - Initialize P2P group 1433 * @p2p: P2P module context from p2p_init() 1434 * @config: P2P group configuration (will be freed by p2p_group_deinit()) 1435 * Returns: Pointer to private data or %NULL on failure 1436 * 1437 * This function is used to initialize per-group P2P module context. Currently, 1438 * this is only used to manage GO functionality and P2P clients do not need to 1439 * create an instance of this per-group information. 1440 */ 1441struct p2p_group * p2p_group_init(struct p2p_data *p2p, 1442 struct p2p_group_config *config); 1443 1444/** 1445 * p2p_group_deinit - Deinitialize P2P group 1446 * @group: P2P group context from p2p_group_init() 1447 */ 1448void p2p_group_deinit(struct p2p_group *group); 1449 1450/** 1451 * p2p_group_notif_assoc - Notification of P2P client association with GO 1452 * @group: P2P group context from p2p_group_init() 1453 * @addr: Interface address of the P2P client 1454 * @ie: IEs from the (Re)association Request frame 1455 * @len: Length of the ie buffer in octets 1456 * Returns: 0 on success, -1 on failure 1457 */ 1458int p2p_group_notif_assoc(struct p2p_group *group, const u8 *addr, 1459 const u8 *ie, size_t len); 1460 1461/** 1462 * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response 1463 * @group: P2P group context from p2p_group_init() 1464 * @status: Status value (P2P_SC_SUCCESS if association succeeded) 1465 * Returns: P2P IE for (Re)association Response or %NULL on failure 1466 * 1467 * The caller is responsible for freeing the returned buffer with 1468 * wpabuf_free(). 1469 */ 1470struct wpabuf * p2p_group_assoc_resp_ie(struct p2p_group *group, u8 status); 1471 1472/** 1473 * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO 1474 * @group: P2P group context from p2p_group_init() 1475 * @addr: Interface address of the P2P client 1476 */ 1477void p2p_group_notif_disassoc(struct p2p_group *group, const u8 *addr); 1478 1479/** 1480 * p2p_group_notif_formation_done - Notification of completed group formation 1481 * @group: P2P group context from p2p_group_init() 1482 */ 1483void p2p_group_notif_formation_done(struct p2p_group *group); 1484 1485/** 1486 * p2p_group_notif_noa - Notification of NoA change 1487 * @group: P2P group context from p2p_group_init() 1488 * @noa: Notice of Absence attribute payload, %NULL if none 1489 * @noa_len: Length of noa buffer in octets 1490 * Returns: 0 on success, -1 on failure 1491 * 1492 * Notify the P2P group management about a new NoA contents. This will be 1493 * inserted into the P2P IEs in Beacon and Probe Response frames with rest of 1494 * the group information. 1495 */ 1496int p2p_group_notif_noa(struct p2p_group *group, const u8 *noa, 1497 size_t noa_len); 1498 1499/** 1500 * p2p_group_match_dev_type - Match device types in group with requested type 1501 * @group: P2P group context from p2p_group_init() 1502 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs) 1503 * Returns: 1 on match, 0 on mismatch 1504 * 1505 * This function can be used to match the Requested Device Type attribute in 1506 * WPS IE with the device types of a group member for deciding whether a GO 1507 * should reply to a Probe Request frame. Match will be reported if the WPS IE 1508 * is not requested any specific device type. 1509 */ 1510int p2p_group_match_dev_type(struct p2p_group *group, struct wpabuf *wps); 1511 1512/** 1513 * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id 1514 */ 1515int p2p_group_match_dev_id(struct p2p_group *group, struct wpabuf *p2p); 1516 1517/** 1518 * p2p_group_go_discover - Send GO Discoverability Request to a group client 1519 * @group: P2P group context from p2p_group_init() 1520 * Returns: 0 on success (frame scheduled); -1 if client was not found 1521 */ 1522int p2p_group_go_discover(struct p2p_group *group, const u8 *dev_id, 1523 const u8 *searching_dev, int rx_freq); 1524 1525 1526/* Generic helper functions */ 1527 1528/** 1529 * p2p_ie_text - Build text format description of P2P IE 1530 * @p2p_ie: P2P IE 1531 * @buf: Buffer for returning text 1532 * @end: Pointer to the end of the buf area 1533 * Returns: Number of octets written to the buffer or -1 on failure 1534 * 1535 * This function can be used to parse P2P IE contents into text format 1536 * field=value lines. 1537 */ 1538int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end); 1539 1540/** 1541 * p2p_scan_result_text - Build text format description of P2P IE 1542 * @ies: Information elements from scan results 1543 * @ies_len: ies buffer length in octets 1544 * @buf: Buffer for returning text 1545 * @end: Pointer to the end of the buf area 1546 * Returns: Number of octets written to the buffer or -1 on failure 1547 * 1548 * This function can be used to parse P2P IE contents into text format 1549 * field=value lines. 1550 */ 1551int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end); 1552 1553/** 1554 * p2p_parse_dev_addr_in_p2p_ie - Parse P2P Device Address from a concatenated 1555 * P2P IE 1556 * @p2p_ie: P2P IE 1557 * @dev_addr: Buffer for returning P2P Device Address 1558 * Returns: 0 on success or -1 if P2P Device Address could not be parsed 1559 */ 1560int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr); 1561 1562/** 1563 * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s) 1564 * @ies: Information elements from scan results 1565 * @ies_len: ies buffer length in octets 1566 * @dev_addr: Buffer for returning P2P Device Address 1567 * Returns: 0 on success or -1 if P2P Device Address could not be parsed 1568 */ 1569int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr); 1570 1571/** 1572 * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame 1573 * @p2p: P2P module context from p2p_init() 1574 * @bssid: BSSID 1575 * @buf: Buffer for writing the P2P IE 1576 * @len: Maximum buf length in octets 1577 * @p2p_group: Whether this is for association with a P2P GO 1578 * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none 1579 * Returns: Number of octets written into buf or -1 on failure 1580 */ 1581int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf, 1582 size_t len, int p2p_group, struct wpabuf *p2p_ie); 1583 1584/** 1585 * p2p_scan_ie - Build P2P IE for Probe Request 1586 * @p2p: P2P module context from p2p_init() 1587 * @ies: Buffer for writing P2P IE 1588 * @dev_id: Device ID to search for or %NULL for any 1589 */ 1590void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id); 1591 1592/** 1593 * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie 1594 * @p2p: P2P module context from p2p_init() 1595 * Returns: Number of octets that p2p_scan_ie() may add to the buffer 1596 */ 1597size_t p2p_scan_ie_buf_len(struct p2p_data *p2p); 1598 1599/** 1600 * p2p_go_params - Generate random P2P group parameters 1601 * @p2p: P2P module context from p2p_init() 1602 * @params: Buffer for parameters 1603 * Returns: 0 on success, -1 on failure 1604 */ 1605int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params); 1606 1607/** 1608 * p2p_get_group_capab - Get Group Capability from P2P IE data 1609 * @p2p_ie: P2P IE(s) contents 1610 * Returns: Group Capability 1611 */ 1612u8 p2p_get_group_capab(const struct wpabuf *p2p_ie); 1613 1614/** 1615 * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection 1616 * @p2p_ie: P2P IE(s) contents 1617 * Returns: 0 if cross connection is allow, 1 if not 1618 */ 1619int p2p_get_cross_connect_disallowed(const struct wpabuf *p2p_ie); 1620 1621/** 1622 * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data 1623 * @p2p_ie: P2P IE(s) contents 1624 * Returns: Pointer to P2P Device Address or %NULL if not included 1625 */ 1626const u8 * p2p_get_go_dev_addr(const struct wpabuf *p2p_ie); 1627 1628/** 1629 * p2p_get_peer_info - Get P2P peer information 1630 * @p2p: P2P module context from p2p_init() 1631 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer 1632 * @next: Whether to select the peer entry following the one indicated by addr 1633 * Returns: Pointer to peer info or %NULL if not found 1634 */ 1635const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p, 1636 const u8 *addr, int next); 1637 1638/** 1639 * p2p_get_peer_info_txt - Get internal P2P peer information in text format 1640 * @info: Pointer to P2P peer info from p2p_get_peer_info() 1641 * @buf: Buffer for returning text 1642 * @buflen: Maximum buffer length 1643 * Returns: Number of octets written to the buffer or -1 on failure 1644 * 1645 * Note: This information is internal to the P2P module and subject to change. 1646 * As such, this should not really be used by external programs for purposes 1647 * other than debugging. 1648 */ 1649int p2p_get_peer_info_txt(const struct p2p_peer_info *info, 1650 char *buf, size_t buflen); 1651 1652/** 1653 * p2p_peer_known - Check whether P2P peer is known 1654 * @p2p: P2P module context from p2p_init() 1655 * @addr: P2P Device Address of the peer 1656 * Returns: 1 if the specified device is in the P2P peer table or 0 if not 1657 */ 1658int p2p_peer_known(struct p2p_data *p2p, const u8 *addr); 1659 1660/** 1661 * p2p_set_client_discoverability - Set client discoverability capability 1662 * @p2p: P2P module context from p2p_init() 1663 * @enabled: Whether client discoverability will be enabled 1664 * 1665 * This function can be used to disable (and re-enable) client discoverability. 1666 * This capability is enabled by default and should not be disabled in normal 1667 * use cases, i.e., this is mainly for testing purposes. 1668 */ 1669void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled); 1670 1671/** 1672 * p2p_set_managed_oper - Set managed P2P Device operations capability 1673 * @p2p: P2P module context from p2p_init() 1674 * @enabled: Whether managed P2P Device operations will be enabled 1675 */ 1676void p2p_set_managed_oper(struct p2p_data *p2p, int enabled); 1677 1678int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel, 1679 u8 forced); 1680 1681u8 p2p_get_listen_channel(struct p2p_data *p2p); 1682 1683int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len); 1684 1685int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr, 1686 u8 *iface_addr); 1687int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr, 1688 u8 *dev_addr); 1689 1690void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr); 1691 1692/** 1693 * p2p_set_cross_connect - Set cross connection capability 1694 * @p2p: P2P module context from p2p_init() 1695 * @enabled: Whether cross connection will be enabled 1696 */ 1697void p2p_set_cross_connect(struct p2p_data *p2p, int enabled); 1698 1699int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr); 1700 1701/** 1702 * p2p_set_intra_bss_dist - Set intra BSS distribution 1703 * @p2p: P2P module context from p2p_init() 1704 * @enabled: Whether intra BSS distribution will be enabled 1705 */ 1706void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled); 1707 1708int p2p_channels_includes_freq(const struct p2p_channels *channels, 1709 unsigned int freq); 1710 1711/** 1712 * p2p_supported_freq - Check whether channel is supported for P2P 1713 * @p2p: P2P module context from p2p_init() 1714 * @freq: Channel frequency in MHz 1715 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 1716 */ 1717int p2p_supported_freq(struct p2p_data *p2p, unsigned int freq); 1718 1719/** 1720 * p2p_supported_freq_go - Check whether channel is supported for P2P GO operation 1721 * @p2p: P2P module context from p2p_init() 1722 * @freq: Channel frequency in MHz 1723 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 1724 */ 1725int p2p_supported_freq_go(struct p2p_data *p2p, unsigned int freq); 1726 1727/** 1728 * p2p_supported_freq_cli - Check whether channel is supported for P2P client operation 1729 * @p2p: P2P module context from p2p_init() 1730 * @freq: Channel frequency in MHz 1731 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 1732 */ 1733int p2p_supported_freq_cli(struct p2p_data *p2p, unsigned int freq); 1734 1735/** 1736 * p2p_get_pref_freq - Get channel from preferred channel list 1737 * @p2p: P2P module context from p2p_init() 1738 * @channels: List of channels 1739 * Returns: Preferred channel 1740 */ 1741unsigned int p2p_get_pref_freq(struct p2p_data *p2p, 1742 const struct p2p_channels *channels); 1743 1744void p2p_update_channel_list(struct p2p_data *p2p, 1745 const struct p2p_channels *chan, 1746 const struct p2p_channels *cli_chan); 1747 1748/** 1749 * p2p_set_best_channels - Update best channel information 1750 * @p2p: P2P module context from p2p_init() 1751 * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band 1752 * @freq_5: Frequency (MHz) of best channel in 5 GHz band 1753 * @freq_overall: Frequency (MHz) of best channel overall 1754 */ 1755void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5, 1756 int freq_overall); 1757 1758/** 1759 * p2p_set_own_freq_preference - Set own preference for channel 1760 * @p2p: P2P module context from p2p_init() 1761 * @freq: Frequency (MHz) of the preferred channel or 0 if no preference 1762 * 1763 * This function can be used to set a preference on the operating channel based 1764 * on frequencies used on the other virtual interfaces that share the same 1765 * radio. If non-zero, this is used to try to avoid multi-channel concurrency. 1766 */ 1767void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq); 1768 1769const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p); 1770 1771/** 1772 * p2p_get_group_num_members - Get number of members in group 1773 * @group: P2P group context from p2p_group_init() 1774 * Returns: Number of members in the group 1775 */ 1776unsigned int p2p_get_group_num_members(struct p2p_group *group); 1777 1778/** 1779 * p2p_iterate_group_members - Iterate group members 1780 * @group: P2P group context from p2p_group_init() 1781 * @next: iteration pointer, must be a pointer to a void * that is set to %NULL 1782 * on the first call and not modified later 1783 * Returns: A P2P Interface Address for each call and %NULL for no more members 1784 */ 1785const u8 * p2p_iterate_group_members(struct p2p_group *group, void **next); 1786 1787/** 1788 * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group 1789 * @group: P2P group context from p2p_group_init() 1790 * @addr: P2P Interface Address of the client 1791 * Returns: P2P Device Address of the client if found or %NULL if no match 1792 * found 1793 */ 1794const u8 * p2p_group_get_dev_addr(struct p2p_group *group, const u8 *addr); 1795 1796/** 1797 * p2p_group_is_client_connected - Check whether a specific client is connected 1798 * @group: P2P group context from p2p_group_init() 1799 * @addr: P2P Device Address of the client 1800 * Returns: 1 if client is connected or 0 if not 1801 */ 1802int p2p_group_is_client_connected(struct p2p_group *group, const u8 *dev_addr); 1803 1804/** 1805 * p2p_get_peer_found - Get P2P peer info structure of a found peer 1806 * @p2p: P2P module context from p2p_init() 1807 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer 1808 * @next: Whether to select the peer entry following the one indicated by addr 1809 * Returns: The first P2P peer info available or %NULL if no such peer exists 1810 */ 1811const struct p2p_peer_info * 1812p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next); 1813 1814/** 1815 * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions 1816 * @p2p: P2P module context from p2p_init() 1817 */ 1818void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p); 1819 1820/** 1821 * p2p_add_wps_vendor_extension - Add a WPS vendor extension 1822 * @p2p: P2P module context from p2p_init() 1823 * @vendor_ext: The vendor extensions to add 1824 * Returns: 0 on success, -1 on failure 1825 * 1826 * The wpabuf structures in the array are owned by the P2P 1827 * module after this call. 1828 */ 1829int p2p_add_wps_vendor_extension(struct p2p_data *p2p, 1830 const struct wpabuf *vendor_ext); 1831 1832/** 1833 * p2p_set_oper_channel - Set the P2P operating channel 1834 * @p2p: P2P module context from p2p_init() 1835 * @op_reg_class: Operating regulatory class to set 1836 * @op_channel: operating channel to set 1837 * @cfg_op_channel : Whether op_channel is hardcoded in configuration 1838 * Returns: 0 on success, -1 on failure 1839 */ 1840int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel, 1841 int cfg_op_channel); 1842 1843/** 1844 * p2p_set_pref_chan - Set P2P preferred channel list 1845 * @p2p: P2P module context from p2p_init() 1846 * @num_pref_chan: Number of entries in pref_chan list 1847 * @pref_chan: Preferred channels or %NULL to remove preferences 1848 * Returns: 0 on success, -1 on failure 1849 */ 1850int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan, 1851 const struct p2p_channel *pref_chan); 1852 1853/** 1854 * p2p_set_no_go_freq - Set no GO channel ranges 1855 * @p2p: P2P module context from p2p_init() 1856 * @list: Channel ranges or %NULL to remove restriction 1857 * Returns: 0 on success, -1 on failure 1858 */ 1859int p2p_set_no_go_freq(struct p2p_data *p2p, 1860 const struct wpa_freq_range_list *list); 1861 1862/** 1863 * p2p_in_progress - Check whether a P2P operation is progress 1864 * @p2p: P2P module context from p2p_init() 1865 * Returns: 0 if P2P module is idle or 1 if an operation is in progress 1866 */ 1867int p2p_in_progress(struct p2p_data *p2p); 1868 1869const char * p2p_wps_method_text(enum p2p_wps_method method); 1870 1871/** 1872 * p2p_set_config_timeout - Set local config timeouts 1873 * @p2p: P2P module context from p2p_init() 1874 * @go_timeout: Time in 10 ms units it takes to start the GO mode 1875 * @client_timeout: Time in 10 ms units it takes to start the client mode 1876 */ 1877void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout, 1878 u8 client_timeout); 1879 1880int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie); 1881int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie); 1882int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie); 1883int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie); 1884int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie); 1885int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie); 1886int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie); 1887int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie); 1888int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem); 1889int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem); 1890int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p, 1891 const struct wpabuf *elem); 1892struct wpabuf * wifi_display_encaps(struct wpabuf *subelems); 1893 1894/** 1895 * p2p_set_disc_int - Set min/max discoverable interval for p2p_find 1896 * @p2p: P2P module context from p2p_init() 1897 * @min_disc_int: minDiscoverableInterval (in units of 100 TU); default 1 1898 * @max_disc_int: maxDiscoverableInterval (in units of 100 TU); default 3 1899 * @max_disc_tu: Maximum number of TUs (1.024 ms) for discoverable interval; or 1900 * -1 not to limit 1901 * Returns: 0 on success, or -1 on failure 1902 * 1903 * This function can be used to configure minDiscoverableInterval and 1904 * maxDiscoverableInterval parameters for the Listen state during device 1905 * discovery (p2p_find). A random number of 100 TU units is picked for each 1906 * Listen state iteration from [min_disc_int,max_disc_int] range. 1907 * 1908 * max_disc_tu can be used to futher limit the discoverable duration. However, 1909 * it should be noted that use of this parameter is not recommended since it 1910 * would not be compliant with the P2P specification. 1911 */ 1912int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int, 1913 int max_disc_tu); 1914 1915/** 1916 * p2p_get_state_txt - Get current P2P state for debug purposes 1917 * @p2p: P2P module context from p2p_init() 1918 * Returns: Name of the current P2P module state 1919 * 1920 * It should be noted that the P2P module state names are internal information 1921 * and subject to change at any point, i.e., this information should be used 1922 * mainly for debugging purposes. 1923 */ 1924const char * p2p_get_state_txt(struct p2p_data *p2p); 1925 1926struct wpabuf * p2p_build_nfc_handover_req(struct p2p_data *p2p, 1927 int client_freq, 1928 const u8 *go_dev_addr, 1929 const u8 *ssid, size_t ssid_len); 1930struct wpabuf * p2p_build_nfc_handover_sel(struct p2p_data *p2p, 1931 int client_freq, 1932 const u8 *go_dev_addr, 1933 const u8 *ssid, size_t ssid_len); 1934 1935struct p2p_nfc_params { 1936 int sel; 1937 const u8 *wsc_attr; 1938 size_t wsc_len; 1939 const u8 *p2p_attr; 1940 size_t p2p_len; 1941 1942 enum { 1943 NO_ACTION, JOIN_GROUP, AUTH_JOIN, INIT_GO_NEG, RESP_GO_NEG, 1944 BOTH_GO, PEER_CLIENT 1945 } next_step; 1946 struct p2p_peer_info *peer; 1947 u8 oob_dev_pw[WPS_OOB_PUBKEY_HASH_LEN + 2 + 1948 WPS_OOB_DEVICE_PASSWORD_LEN]; 1949 size_t oob_dev_pw_len; 1950 int go_freq; 1951 u8 go_dev_addr[ETH_ALEN]; 1952 u8 go_ssid[32]; 1953 size_t go_ssid_len; 1954}; 1955 1956int p2p_process_nfc_connection_handover(struct p2p_data *p2p, 1957 struct p2p_nfc_params *params); 1958 1959void p2p_set_authorized_oob_dev_pw_id(struct p2p_data *p2p, u16 dev_pw_id, 1960 int go_intent, 1961 const u8 *own_interface_addr); 1962 1963#endif /* P2P_H */ 1964