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