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 "common/ieee802_11_defs.h" 13 #include "wps/wps.h" 14 15 #define DEVICE_IDENTITY_KEY_MAX_LEN 64 16 #define DEVICE_IDENTITY_KEY_LEN 16 17 #define DEVICE_IDENTITY_TAG_LEN 8 18 #define DEVICE_IDENTITY_NONCE_LEN 8 19 #define DEVICE_MAX_HASH_LEN 32 20 #define DIR_STR_LEN 3 21 22 /* DIRA Cipher versions */ 23 #define DIRA_CIPHER_VERSION_128 0 24 25 struct weighted_pcl; 26 27 /* P2P ASP Setup Capability */ 28 #define P2PS_SETUP_NONE 0 29 #define P2PS_SETUP_NEW BIT(0) 30 #define P2PS_SETUP_CLIENT BIT(1) 31 #define P2PS_SETUP_GROUP_OWNER BIT(2) 32 33 #define P2PS_WILD_HASH_STR "org.wi-fi.wfds" 34 #define P2PS_HASH_LEN 6 35 #define P2P_MAX_QUERY_HASH 6 36 #define P2PS_FEATURE_CAPAB_CPT_MAX 2 37 38 /** 39 * P2P_MAX_PREF_CHANNELS - Maximum number of preferred channels 40 */ 41 #define P2P_MAX_PREF_CHANNELS 100 42 43 /** 44 * P2P_MAX_REG_CLASSES - Maximum number of regulatory classes 45 */ 46 #define P2P_MAX_REG_CLASSES 15 47 48 /** 49 * P2P_MAX_REG_CLASS_CHANNELS - Maximum number of channels per regulatory class 50 */ 51 #define P2P_MAX_REG_CLASS_CHANNELS 60 52 53 /** 54 * struct p2p_channels - List of supported channels 55 */ 56 struct p2p_channels { 57 /** 58 * struct p2p_reg_class - Supported regulatory class 59 */ 60 struct p2p_reg_class { 61 /** 62 * reg_class - Regulatory class (IEEE 802.11-2007, Annex J) 63 */ 64 u8 reg_class; 65 66 /** 67 * channel - Supported channels 68 */ 69 u8 channel[P2P_MAX_REG_CLASS_CHANNELS]; 70 71 /** 72 * channels - Number of channel entries in use 73 */ 74 size_t channels; 75 } reg_class[P2P_MAX_REG_CLASSES]; 76 77 /** 78 * reg_classes - Number of reg_class entries in use 79 */ 80 size_t reg_classes; 81 }; 82 83 enum p2p_wps_method { 84 WPS_NOT_READY, WPS_PIN_DISPLAY, WPS_PIN_KEYPAD, WPS_PBC, WPS_NFC, 85 WPS_P2PS 86 }; 87 88 /** 89 * struct p2p_go_neg_results - P2P Group Owner Negotiation results 90 */ 91 struct p2p_go_neg_results { 92 /** 93 * status - Negotiation result (Status Code) 94 * 95 * 0 (P2P_SC_SUCCESS) indicates success. Non-zero values indicate 96 * failed negotiation. 97 */ 98 int status; 99 100 /** 101 * role_go - Whether local end is Group Owner 102 */ 103 int role_go; 104 105 /** 106 * freq - Frequency of the group operational channel in MHz 107 */ 108 int freq; 109 110 int ht40; 111 112 int vht; 113 114 int edmg; 115 116 u8 max_oper_chwidth; 117 118 unsigned int vht_center_freq2; 119 120 /** 121 * he - Indicates if IEEE 802.11ax HE is enabled 122 */ 123 int he; 124 125 /** 126 * ssid - SSID of the group 127 */ 128 u8 ssid[SSID_MAX_LEN]; 129 130 /** 131 * ssid_len - Length of SSID in octets 132 */ 133 size_t ssid_len; 134 135 /** 136 * psk - WPA pre-shared key (256 bits) (GO only) 137 */ 138 u8 psk[32]; 139 140 /** 141 * psk_set - Whether PSK field is configured (GO only) 142 */ 143 int psk_set; 144 145 /** 146 * passphrase - WPA2-Personal passphrase for the group (GO only) 147 */ 148 char passphrase[64]; 149 150 /** 151 * peer_device_addr - P2P Device Address of the peer 152 */ 153 u8 peer_device_addr[ETH_ALEN]; 154 155 /** 156 * peer_interface_addr - P2P Interface Address of the peer 157 */ 158 u8 peer_interface_addr[ETH_ALEN]; 159 160 /** 161 * wps_method - WPS method to be used during provisioning 162 */ 163 enum p2p_wps_method wps_method; 164 165 #define P2P_MAX_CHANNELS 50 166 167 /** 168 * freq_list - Zero-terminated list of possible operational channels 169 */ 170 int freq_list[P2P_MAX_CHANNELS]; 171 172 /** 173 * persistent_group - Whether the group should be made persistent 174 * 0 = not persistent 175 * 1 = persistent group without persistent reconnect 176 * 2 = persistent group with persistent reconnect 177 */ 178 int persistent_group; 179 180 /** 181 * peer_config_timeout - Peer configuration timeout (in 10 msec units) 182 */ 183 unsigned int peer_config_timeout; 184 }; 185 186 struct p2ps_provision { 187 /** 188 * pd_seeker - P2PS provision discovery seeker role 189 */ 190 unsigned int pd_seeker:1; 191 192 /** 193 * status - Remote returned provisioning status code 194 */ 195 int status; 196 197 /** 198 * adv_id - P2PS Advertisement ID 199 */ 200 u32 adv_id; 201 202 /** 203 * session_id - P2PS Session ID 204 */ 205 u32 session_id; 206 207 /** 208 * method - WPS Method (to be) used to establish session 209 */ 210 u16 method; 211 212 /** 213 * conncap - Connection Capabilities negotiated between P2P peers 214 */ 215 u8 conncap; 216 217 /** 218 * role - Info about the roles to be used for this connection 219 */ 220 u8 role; 221 222 /** 223 * session_mac - MAC address of the peer that started the session 224 */ 225 u8 session_mac[ETH_ALEN]; 226 227 /** 228 * adv_mac - MAC address of the peer advertised the service 229 */ 230 u8 adv_mac[ETH_ALEN]; 231 232 /** 233 * cpt_mask - Supported Coordination Protocol Transport mask 234 * 235 * A bitwise mask of supported ASP Coordination Protocol Transports. 236 * This property is set together and corresponds with cpt_priority. 237 */ 238 u8 cpt_mask; 239 240 /** 241 * cpt_priority - Coordination Protocol Transport priority list 242 * 243 * Priorities of supported ASP Coordination Protocol Transports. 244 * This property is set together and corresponds with cpt_mask. 245 * The CPT priority list is 0 terminated. 246 */ 247 u8 cpt_priority[P2PS_FEATURE_CAPAB_CPT_MAX + 1]; 248 249 /** 250 * force_freq - The only allowed channel frequency in MHz or 0. 251 */ 252 unsigned int force_freq; 253 254 /** 255 * pref_freq - Preferred operating frequency in MHz or 0. 256 */ 257 unsigned int pref_freq; 258 259 /** 260 * info - Vendor defined extra Provisioning information 261 */ 262 char info[0]; 263 }; 264 265 struct p2ps_advertisement { 266 struct p2ps_advertisement *next; 267 268 /** 269 * svc_info - Pointer to (internal) Service defined information 270 */ 271 char *svc_info; 272 273 /** 274 * id - P2PS Advertisement ID 275 */ 276 u32 id; 277 278 /** 279 * config_methods - WPS Methods which are allowed for this service 280 */ 281 u16 config_methods; 282 283 /** 284 * state - Current state of the service: 0 - Out Of Service, 1-255 Vendor defined 285 */ 286 u8 state; 287 288 /** 289 * auto_accept - Automatically Accept provisioning request if possible. 290 */ 291 u8 auto_accept; 292 293 /** 294 * hash - 6 octet Service Name has to match against incoming Probe Requests 295 */ 296 u8 hash[P2PS_HASH_LEN]; 297 298 /** 299 * cpt_mask - supported Coordination Protocol Transport mask 300 * 301 * A bitwise mask of supported ASP Coordination Protocol Transports. 302 * This property is set together and corresponds with cpt_priority. 303 */ 304 u8 cpt_mask; 305 306 /** 307 * cpt_priority - Coordination Protocol Transport priority list 308 * 309 * Priorities of supported ASP Coordinatin Protocol Transports. 310 * This property is set together and corresponds with cpt_mask. 311 * The CPT priority list is 0 terminated. 312 */ 313 u8 cpt_priority[P2PS_FEATURE_CAPAB_CPT_MAX + 1]; 314 315 /** 316 * svc_name - NULL Terminated UTF-8 Service Name, and svc_info storage 317 */ 318 char svc_name[0]; 319 }; 320 321 322 struct p2p_data; 323 324 enum p2p_scan_type { 325 P2P_SCAN_SOCIAL, 326 P2P_SCAN_FULL, 327 P2P_SCAN_SPECIFIC, 328 P2P_SCAN_SOCIAL_PLUS_ONE 329 }; 330 331 #define P2P_MAX_WPS_VENDOR_EXT 10 332 333 /** 334 * struct p2p_pairing_config - P2P pairing configuration 335 */ 336 struct p2p_pairing_config { 337 /** 338 * Pairing capable 339 */ 340 bool pairing_capable; 341 342 /** 343 * Enable P2P pairing setup 344 */ 345 bool enable_pairing_setup; 346 347 /** 348 * Enable pairing cache to allow verification 349 */ 350 bool enable_pairing_cache; 351 352 /** 353 * Enable P2P pairing verification with cached NIK/NPK 354 */ 355 bool enable_pairing_verification; 356 357 /** 358 * P2P bootstrapping methods supported 359 */ 360 u16 bootstrap_methods; 361 362 /** 363 * Bitmap of supported PASN types 364 */ 365 u8 pasn_type; 366 367 /* Cipher version type */ 368 int dik_cipher; 369 370 /* Buffer to hold the DevIK */ 371 u8 dik_data[DEVICE_IDENTITY_KEY_MAX_LEN]; 372 373 /* Length of DevIK in octets */ 374 size_t dik_len; 375 }; 376 377 /** 378 * struct p2p_peer_info - P2P peer information 379 */ 380 struct p2p_peer_info { 381 /** 382 * p2p_device_addr - P2P Device Address of the peer 383 */ 384 u8 p2p_device_addr[ETH_ALEN]; 385 386 /** 387 * pri_dev_type - Primary Device Type 388 */ 389 u8 pri_dev_type[8]; 390 391 /** 392 * device_name - Device Name (0..32 octets encoded in UTF-8) 393 */ 394 char device_name[WPS_DEV_NAME_MAX_LEN + 1]; 395 396 /** 397 * manufacturer - Manufacturer (0..64 octets encoded in UTF-8) 398 */ 399 char manufacturer[WPS_MANUFACTURER_MAX_LEN + 1]; 400 401 /** 402 * model_name - Model Name (0..32 octets encoded in UTF-8) 403 */ 404 char model_name[WPS_MODEL_NAME_MAX_LEN + 1]; 405 406 /** 407 * model_number - Model Number (0..32 octets encoded in UTF-8) 408 */ 409 char model_number[WPS_MODEL_NUMBER_MAX_LEN + 1]; 410 411 /** 412 * serial_number - Serial Number (0..32 octets encoded in UTF-8) 413 */ 414 char serial_number[WPS_SERIAL_NUMBER_MAX_LEN + 1]; 415 416 /** 417 * level - Signal level 418 */ 419 int level; 420 421 /** 422 * config_methods - WPS Configuration Methods 423 */ 424 u16 config_methods; 425 426 /** 427 * dev_capab - Device Capabilities 428 */ 429 u8 dev_capab; 430 431 /** 432 * group_capab - Group Capabilities 433 */ 434 u8 group_capab; 435 436 /** 437 * wps_sec_dev_type_list - WPS secondary device type list 438 * 439 * This list includes from 0 to 16 Secondary Device Types as indicated 440 * by wps_sec_dev_type_list_len (8 * number of types). 441 */ 442 u8 wps_sec_dev_type_list[WPS_SEC_DEV_TYPE_MAX_LEN]; 443 444 /** 445 * wps_sec_dev_type_list_len - Length of secondary device type list 446 */ 447 size_t wps_sec_dev_type_list_len; 448 449 struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT]; 450 451 /** 452 * wfd_subelems - Wi-Fi Display subelements from WFD IE(s) 453 */ 454 struct wpabuf *wfd_subelems; 455 456 /** 457 * vendor_elems - Unrecognized vendor elements 458 * 459 * This buffer includes any other vendor element than P2P, WPS, and WFD 460 * IE(s) from the frame that was used to discover the peer. 461 */ 462 struct wpabuf *vendor_elems; 463 464 /** 465 * p2ps_instance - P2PS Application Service Info 466 */ 467 struct wpabuf *p2ps_instance; 468 469 /** 470 * pcea_cap_info - Capability info in PCEA 471 */ 472 u16 pcea_cap_info; 473 474 /** 475 * The regulatory info encoding for operation in 6 GHz band 476 */ 477 u8 reg_info; 478 479 /** 480 * p2p_pairing_config - P2P pairing configuration 481 */ 482 struct p2p_pairing_config pairing_config; 483 }; 484 485 enum p2p_prov_disc_status { 486 P2P_PROV_DISC_SUCCESS, 487 P2P_PROV_DISC_TIMEOUT, 488 P2P_PROV_DISC_REJECTED, 489 P2P_PROV_DISC_TIMEOUT_JOIN, 490 P2P_PROV_DISC_INFO_UNAVAILABLE, 491 }; 492 493 struct p2p_channel { 494 u8 op_class; 495 u8 chan; 496 }; 497 498 /** 499 * struct p2p_config - P2P configuration 500 * 501 * This configuration is provided to the P2P module during initialization with 502 * p2p_init(). 503 */ 504 struct p2p_config { 505 /** 506 * country - Country code to use in P2P operations 507 */ 508 char country[3]; 509 510 /** 511 * reg_class - Regulatory class for own listen channel 512 */ 513 u8 reg_class; 514 515 /** 516 * channel - Own listen channel 517 */ 518 u8 channel; 519 520 /** 521 * channel_forced - the listen channel was forced by configuration 522 * or by control interface and cannot be overridden 523 */ 524 u8 channel_forced; 525 526 /** 527 * Regulatory class for own operational channel 528 */ 529 u8 op_reg_class; 530 531 /** 532 * op_channel - Own operational channel 533 */ 534 u8 op_channel; 535 536 /** 537 * cfg_op_channel - Whether op_channel is hardcoded in configuration 538 */ 539 u8 cfg_op_channel; 540 541 /** 542 * channels - Own supported regulatory classes and channels 543 * 544 * List of supposerted channels per regulatory class. The regulatory 545 * classes are defined in IEEE Std 802.11-2007 Annex J and the 546 * numbering of the clases depends on the configured country code. 547 */ 548 struct p2p_channels channels; 549 550 /** 551 * cli_channels - Additional client channels 552 * 553 * This list of channels (if any) will be used when advertising local 554 * channels during GO Negotiation or Invitation for the cases where the 555 * local end may become the client. This may allow the peer to become a 556 * GO on additional channels if it supports these options. The main use 557 * case for this is to include passive-scan channels on devices that may 558 * not know their current location and have configured most channels to 559 * not allow initiation of radition (i.e., another device needs to take 560 * master responsibilities). 561 */ 562 struct p2p_channels cli_channels; 563 564 /** 565 * num_pref_chan - Number of pref_chan entries 566 */ 567 unsigned int num_pref_chan; 568 569 /** 570 * pref_chan - Preferred channels for GO Negotiation 571 */ 572 struct p2p_channel *pref_chan; 573 574 /** 575 * p2p_6ghz_disable - Disable 6GHz for P2P operations 576 */ 577 bool p2p_6ghz_disable; 578 579 /** 580 * p2p_dfs_chan_enable - Enable p2p Go to operate on dfs channel 581 */ 582 bool p2p_dfs_chan_enable; 583 584 /** 585 * pri_dev_type - Primary Device Type (see WPS) 586 */ 587 u8 pri_dev_type[8]; 588 589 /** 590 * P2P_SEC_DEVICE_TYPES - Maximum number of secondary device types 591 */ 592 #define P2P_SEC_DEVICE_TYPES 5 593 594 /** 595 * sec_dev_type - Optional secondary device types 596 */ 597 u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8]; 598 599 /** 600 * num_sec_dev_types - Number of sec_dev_type entries 601 */ 602 size_t num_sec_dev_types; 603 604 /** 605 * dev_addr - P2P Device Address 606 */ 607 u8 dev_addr[ETH_ALEN]; 608 609 /** 610 * dev_name - Device Name 611 */ 612 char *dev_name; 613 614 char *manufacturer; 615 char *model_name; 616 char *model_number; 617 char *serial_number; 618 619 u8 uuid[16]; 620 u16 config_methods; 621 622 /** 623 * concurrent_operations - Whether concurrent operations are supported 624 */ 625 int concurrent_operations; 626 627 /** 628 * max_peers - Maximum number of discovered peers to remember 629 * 630 * If more peers are discovered, older entries will be removed to make 631 * room for the new ones. 632 */ 633 size_t max_peers; 634 635 /** 636 * p2p_intra_bss - Intra BSS communication is supported 637 */ 638 int p2p_intra_bss; 639 640 /** 641 * ssid_postfix - Postfix data to add to the SSID 642 * 643 * This data will be added to the end of the SSID after the 644 * DIRECT-<random two octets> prefix. 645 */ 646 u8 ssid_postfix[SSID_MAX_LEN - 9]; 647 648 /** 649 * ssid_postfix_len - Length of the ssid_postfix data 650 */ 651 size_t ssid_postfix_len; 652 653 /** 654 * max_listen - Maximum listen duration in ms 655 */ 656 unsigned int max_listen; 657 658 /** 659 * passphrase_len - Passphrase length (8..63) 660 * 661 * This parameter controls the length of the random passphrase that is 662 * generated at the GO. 663 */ 664 unsigned int passphrase_len; 665 666 /** 667 * p2p_pairing_config - P2P pairing configuration 668 */ 669 struct p2p_pairing_config pairing_config; 670 671 /** 672 * reg_info - Regulatory info encoding for operation in 6 GHz band 673 */ 674 u8 reg_info; 675 676 /** 677 * dfs_owner - Enable P2P GO to act as DFS Owner 678 */ 679 bool dfs_owner; 680 681 /** 682 * twt_power_mgmt - Enable TWT based power management for P2P 683 */ 684 bool twt_power_mgmt; 685 686 /** 687 * comeback_after - Bootstrap request unauthorized for peer 688 * 689 * Ask to come back after this many TUs. 690 */ 691 u16 comeback_after; 692 693 /** 694 * cb_ctx - Context to use with callback functions 695 */ 696 void *cb_ctx; 697 698 /** 699 * debug_print - Debug print 700 * @ctx: Callback context from cb_ctx 701 * @level: Debug verbosity level (MSG_*) 702 * @msg: Debug message 703 */ 704 void (*debug_print)(void *ctx, int level, const char *msg); 705 706 707 /* Callbacks to request lower layer driver operations */ 708 709 /** 710 * p2p_scan - Request a P2P scan/search 711 * @ctx: Callback context from cb_ctx 712 * @type: Scan type 713 * @freq: Specific frequency (MHz) to scan or 0 for no restriction 714 * @num_req_dev_types: Number of requested device types 715 * @req_dev_types: Array containing requested device types 716 * @dev_id: Device ID to search for or %NULL to find all devices 717 * @pw_id: Device Password ID 718 * @include_6ghz: Include 6 GHz channels in P2P scan 719 * Returns: 0 on success, -1 on failure 720 * 721 * This callback function is used to request a P2P scan or search 722 * operation to be completed. Type type argument specifies which type 723 * of scan is to be done. @P2P_SCAN_SOCIAL indicates that only the 724 * social channels (1, 6, 11) should be scanned. @P2P_SCAN_FULL 725 * indicates that all channels are to be scanned. @P2P_SCAN_SPECIFIC 726 * request a scan of a single channel specified by freq. 727 * @P2P_SCAN_SOCIAL_PLUS_ONE request scan of all the social channels 728 * plus one extra channel specified by freq. 729 * 730 * The full scan is used for the initial scan to find group owners from 731 * all. The other types are used during search phase scan of the social 732 * channels (with potential variation if the Listen channel of the 733 * target peer is known or if other channels are scanned in steps). 734 * 735 * The scan results are returned after this call by calling 736 * p2p_scan_res_handler() for each scan result that has a P2P IE and 737 * then calling p2p_scan_res_handled() to indicate that all scan 738 * results have been indicated. 739 */ 740 int (*p2p_scan)(void *ctx, enum p2p_scan_type type, int freq, 741 unsigned int num_req_dev_types, 742 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id, 743 bool include_6ghz); 744 745 /** 746 * send_probe_resp - Transmit a Probe Response frame 747 * @ctx: Callback context from cb_ctx 748 * @buf: Probe Response frame (including the header and body) 749 * @freq: Forced frequency (in MHz) to use or 0. 750 * Returns: 0 on success, -1 on failure 751 * 752 * This function is used to reply to Probe Request frames that were 753 * indicated with a call to p2p_probe_req_rx(). The response is to be 754 * sent on the same channel, unless otherwise specified, or to be 755 * dropped if the driver is not listening to Probe Request frames 756 * anymore. 757 * 758 * Alternatively, the responsibility for building the Probe Response 759 * frames in Listen state may be in another system component in which 760 * case this function need to be implemented (i.e., the function 761 * pointer can be %NULL). The WPS and P2P IEs to be added for Probe 762 * Response frames in such a case are available from the 763 * start_listen() callback. It should be noted that the received Probe 764 * Request frames must be indicated by calling p2p_probe_req_rx() even 765 * if this send_probe_resp() is not used. 766 */ 767 int (*send_probe_resp)(void *ctx, const struct wpabuf *buf, 768 unsigned int freq); 769 770 /** 771 * send_action - Transmit an Action frame 772 * @ctx: Callback context from cb_ctx 773 * @freq: Frequency in MHz for the channel on which to transmit 774 * @dst: Destination MAC address (Address 1) 775 * @src: Source MAC address (Address 2) 776 * @bssid: BSSID (Address 3) 777 * @buf: Frame body (starting from Category field) 778 * @len: Length of buf in octets 779 * @wait_time: How many msec to wait for a response frame 780 * @scheduled: Return value indicating whether the transmissions was 781 * scheduled to happen once the radio is available 782 * Returns: 0 on success, -1 on failure 783 * 784 * The Action frame may not be transmitted immediately and the status 785 * of the transmission must be reported by calling 786 * p2p_send_action_cb() once the frame has either been transmitted or 787 * it has been dropped due to excessive retries or other failure to 788 * transmit. 789 */ 790 int (*send_action)(void *ctx, unsigned int freq, const u8 *dst, 791 const u8 *src, const u8 *bssid, const u8 *buf, 792 size_t len, unsigned int wait_time, int *scheduled); 793 794 /** 795 * send_action_done - Notify that Action frame sequence was completed 796 * @ctx: Callback context from cb_ctx 797 * 798 * This function is called when the Action frame sequence that was 799 * started with send_action() has been completed, i.e., when there is 800 * no need to wait for a response from the destination peer anymore. 801 */ 802 void (*send_action_done)(void *ctx); 803 804 /** 805 * start_listen - Start Listen state 806 * @ctx: Callback context from cb_ctx 807 * @freq: Frequency of the listen channel in MHz 808 * @duration: Duration for the Listen state in milliseconds 809 * @probe_resp_ie: IE(s) to be added to Probe Response frames 810 * Returns: 0 on success, -1 on failure 811 * 812 * This Listen state may not start immediately since the driver may 813 * have other pending operations to complete first. Once the Listen 814 * state has started, p2p_listen_cb() must be called to notify the P2P 815 * module. Once the Listen state is stopped, p2p_listen_end() must be 816 * called to notify the P2P module that the driver is not in the Listen 817 * state anymore. 818 * 819 * If the send_probe_resp() is not used for generating the response, 820 * the IEs from probe_resp_ie need to be added to the end of the Probe 821 * Response frame body. If send_probe_resp() is used, the probe_resp_ie 822 * information can be ignored. 823 */ 824 int (*start_listen)(void *ctx, unsigned int freq, 825 unsigned int duration, 826 const struct wpabuf *probe_resp_ie); 827 /** 828 * stop_listen - Stop Listen state 829 * @ctx: Callback context from cb_ctx 830 * 831 * This callback can be used to stop a Listen state operation that was 832 * previously requested with start_listen(). 833 */ 834 void (*stop_listen)(void *ctx); 835 836 /** 837 * get_noa - Get current Notice of Absence attribute payload 838 * @ctx: Callback context from cb_ctx 839 * @interface_addr: P2P Interface Address of the GO 840 * @buf: Buffer for returning NoA 841 * @buf_len: Buffer length in octets 842 * Returns: Number of octets used in buf, 0 to indicate no NoA is being 843 * advertized, or -1 on failure 844 * 845 * This function is used to fetch the current Notice of Absence 846 * attribute value from GO. 847 */ 848 int (*get_noa)(void *ctx, const u8 *interface_addr, u8 *buf, 849 size_t buf_len); 850 851 /* Callbacks to notify events to upper layer management entity */ 852 853 /** 854 * dev_found - Notification of a found P2P Device 855 * @ctx: Callback context from cb_ctx 856 * @addr: Source address of the message triggering this notification 857 * @info: P2P peer information 858 * @new_device: Inform if the peer is newly found 859 * 860 * This callback is used to notify that a new P2P Device has been 861 * found. This may happen, e.g., during Search state based on scan 862 * results or during Listen state based on receive Probe Request and 863 * Group Owner Negotiation Request. 864 */ 865 void (*dev_found)(void *ctx, const u8 *addr, 866 const struct p2p_peer_info *info, 867 int new_device); 868 869 /** 870 * dev_lost - Notification of a lost P2P Device 871 * @ctx: Callback context from cb_ctx 872 * @dev_addr: P2P Device Address of the lost P2P Device 873 * 874 * This callback is used to notify that a P2P Device has been deleted. 875 */ 876 void (*dev_lost)(void *ctx, const u8 *dev_addr); 877 878 /** 879 * find_stopped - Notification of a p2p_find operation stopping 880 * @ctx: Callback context from cb_ctx 881 */ 882 void (*find_stopped)(void *ctx); 883 884 /** 885 * go_neg_req_rx - Notification of a receive GO Negotiation Request 886 * @ctx: Callback context from cb_ctx 887 * @src: Source address of the message triggering this notification 888 * @dev_passwd_id: WPS Device Password ID 889 * @go_intent: Peer's GO Intent 890 * 891 * This callback is used to notify that a P2P Device is requesting 892 * group owner negotiation with us, but we do not have all the 893 * necessary information to start GO Negotiation. This indicates that 894 * the local user has not authorized the connection yet by providing a 895 * PIN or PBC button press. This information can be provided with a 896 * call to p2p_connect(). 897 */ 898 void (*go_neg_req_rx)(void *ctx, const u8 *src, u16 dev_passwd_id, 899 u8 go_intent); 900 901 /** 902 * go_neg_completed - Notification of GO Negotiation results 903 * @ctx: Callback context from cb_ctx 904 * @res: GO Negotiation results 905 * 906 * This callback is used to notify that Group Owner Negotiation has 907 * been completed. Non-zero struct p2p_go_neg_results::status indicates 908 * failed negotiation. In case of success, this function is responsible 909 * for creating a new group interface (or using the existing interface 910 * depending on driver features), setting up the group interface in 911 * proper mode based on struct p2p_go_neg_results::role_go and 912 * initializing WPS provisioning either as a Registrar (if GO) or as an 913 * Enrollee. Successful WPS provisioning must be indicated by calling 914 * p2p_wps_success_cb(). The callee is responsible for timing out group 915 * formation if WPS provisioning cannot be completed successfully 916 * within 15 seconds. 917 */ 918 void (*go_neg_completed)(void *ctx, struct p2p_go_neg_results *res); 919 920 /** 921 * sd_request - Callback on Service Discovery Request 922 * @ctx: Callback context from cb_ctx 923 * @freq: Frequency (in MHz) of the channel 924 * @sa: Source address of the request 925 * @dialog_token: Dialog token 926 * @update_indic: Service Update Indicator from the source of request 927 * @tlvs: P2P Service Request TLV(s) 928 * @tlvs_len: Length of tlvs buffer in octets 929 * 930 * This callback is used to indicate reception of a service discovery 931 * request. Response to the query must be indicated by calling 932 * p2p_sd_response() with the context information from the arguments to 933 * this callback function. 934 * 935 * This callback handler can be set to %NULL to indicate that service 936 * discovery is not supported. 937 */ 938 void (*sd_request)(void *ctx, int freq, const u8 *sa, u8 dialog_token, 939 u16 update_indic, const u8 *tlvs, size_t tlvs_len); 940 941 /** 942 * sd_response - Callback on Service Discovery Response 943 * @ctx: Callback context from cb_ctx 944 * @sa: Source address of the request 945 * @update_indic: Service Update Indicator from the source of response 946 * @tlvs: P2P Service Response TLV(s) 947 * @tlvs_len: Length of tlvs buffer in octets 948 * 949 * This callback is used to indicate reception of a service discovery 950 * response. This callback handler can be set to %NULL if no service 951 * discovery requests are used. The information provided with this call 952 * is replies to the queries scheduled with p2p_sd_request(). 953 */ 954 void (*sd_response)(void *ctx, const u8 *sa, u16 update_indic, 955 const u8 *tlvs, size_t tlvs_len); 956 957 /** 958 * prov_disc_req - Callback on Provisiong Discovery Request 959 * @ctx: Callback context from cb_ctx 960 * @peer: Source address of the request 961 * @config_methods: Requested WPS Config Method 962 * @dev_addr: P2P Device Address of the found P2P Device 963 * @pri_dev_type: Primary Device Type 964 * @dev_name: Device Name 965 * @supp_config_methods: Supported configuration Methods 966 * @dev_capab: Device Capabilities 967 * @group_capab: Group Capabilities 968 * @group_id: P2P Group ID (or %NULL if not included) 969 * @group_id_len: Length of P2P Group ID 970 * 971 * This callback is used to indicate reception of a Provision Discovery 972 * Request frame that the P2P module accepted. 973 */ 974 void (*prov_disc_req)(void *ctx, const u8 *peer, u16 config_methods, 975 const u8 *dev_addr, const u8 *pri_dev_type, 976 const char *dev_name, u16 supp_config_methods, 977 u8 dev_capab, u8 group_capab, 978 const u8 *group_id, size_t group_id_len); 979 980 /** 981 * prov_disc_resp - Callback on Provisiong Discovery Response 982 * @ctx: Callback context from cb_ctx 983 * @peer: Source address of the response 984 * @config_methods: Value from p2p_prov_disc_req() or 0 on failure 985 * 986 * This callback is used to indicate reception of a Provision Discovery 987 * Response frame for a pending request scheduled with 988 * p2p_prov_disc_req(). This callback handler can be set to %NULL if 989 * provision discovery is not used. 990 */ 991 void (*prov_disc_resp)(void *ctx, const u8 *peer, u16 config_methods); 992 993 /** 994 * prov_disc_fail - Callback on Provision Discovery failure 995 * @ctx: Callback context from cb_ctx 996 * @peer: Source address of the response 997 * @status: Cause of failure, will not be %P2P_PROV_DISC_SUCCESS 998 * @adv_id: If non-zero, then the adv_id of the PD Request 999 * @adv_mac: P2P Device Address of the advertizer 1000 * @deferred_session_resp: Deferred session response sent by advertizer 1001 * 1002 * This callback is used to indicate either a failure or no response 1003 * to an earlier provision discovery request. 1004 * 1005 * This callback handler can be set to %NULL if provision discovery 1006 * is not used or failures do not need to be indicated. 1007 */ 1008 void (*prov_disc_fail)(void *ctx, const u8 *peer, 1009 enum p2p_prov_disc_status status, 1010 u32 adv_id, const u8 *adv_mac, 1011 const char *deferred_session_resp); 1012 1013 /** 1014 * invitation_process - Optional callback for processing Invitations 1015 * @ctx: Callback context from cb_ctx 1016 * @sa: Source address of the Invitation Request 1017 * @bssid: P2P Group BSSID from the request or %NULL if not included 1018 * @go_dev_addr: GO Device Address from P2P Group ID 1019 * @ssid: SSID from P2P Group ID 1020 * @ssid_len: Length of ssid buffer in octets 1021 * @go: Variable for returning whether the local end is GO in the group 1022 * @group_bssid: Buffer for returning P2P Group BSSID (if local end GO) 1023 * @force_freq: Variable for returning forced frequency for the group 1024 * @persistent_group: Whether this is an invitation to reinvoke a 1025 * persistent group (instead of invitation to join an active 1026 * group) 1027 * @channels: Available operating channels for the group 1028 * @dev_pw_id: Device Password ID for NFC static handover or -1 if not 1029 * used 1030 * Returns: Status code (P2P_SC_*) 1031 * 1032 * This optional callback can be used to implement persistent reconnect 1033 * by allowing automatic restarting of persistent groups without user 1034 * interaction. If this callback is not implemented (i.e., is %NULL), 1035 * the received Invitation Request frames are replied with 1036 * %P2P_SC_REQ_RECEIVED status and indicated to upper layer with the 1037 * invitation_result() callback. 1038 * 1039 * If the requested parameters are acceptable and the group is known, 1040 * %P2P_SC_SUCCESS may be returned. If the requested group is unknown, 1041 * %P2P_SC_FAIL_UNKNOWN_GROUP should be returned. %P2P_SC_REQ_RECEIVED 1042 * can be returned if there is not enough data to provide immediate 1043 * response, i.e., if some sort of user interaction is needed. The 1044 * invitation_received() callback will be called in that case 1045 * immediately after this call. 1046 */ 1047 u8 (*invitation_process)(void *ctx, const u8 *sa, const u8 *bssid, 1048 const u8 *go_dev_addr, const u8 *ssid, 1049 size_t ssid_len, int *go, u8 *group_bssid, 1050 int *force_freq, int persistent_group, 1051 const struct p2p_channels *channels, 1052 int dev_pw_id); 1053 1054 /** 1055 * invitation_received - Callback on Invitation Request RX 1056 * @ctx: Callback context from cb_ctx 1057 * @sa: Source address of the Invitation Request 1058 * @bssid: P2P Group BSSID or %NULL if not received 1059 * @ssid: SSID of the group 1060 * @ssid_len: Length of ssid in octets 1061 * @go_dev_addr: GO Device Address 1062 * @status: Response Status 1063 * @op_freq: Operational frequency for the group 1064 * 1065 * This callback is used to indicate sending of an Invitation Response 1066 * for a received Invitation Request. If status == 0 (success), the 1067 * upper layer code is responsible for starting the group. status == 1 1068 * indicates need to get user authorization for the group. Other status 1069 * values indicate that the invitation request was rejected. 1070 */ 1071 void (*invitation_received)(void *ctx, const u8 *sa, const u8 *bssid, 1072 const u8 *ssid, size_t ssid_len, 1073 const u8 *go_dev_addr, u8 status, 1074 int op_freq); 1075 1076 /** 1077 * invitation_result - Callback on Invitation result 1078 * @ctx: Callback context from cb_ctx 1079 * @status: Negotiation result (Status Code) 1080 * @bssid: P2P Group BSSID or %NULL if not received 1081 * @channels: Available operating channels for the group 1082 * @addr: Peer address 1083 * @freq: Frequency (in MHz) indicated during invitation or 0 1084 * @peer_oper_freq: Operating frequency (in MHz) advertized by the peer 1085 * during invitation or 0 1086 * 1087 * This callback is used to indicate result of an Invitation procedure 1088 * started with a call to p2p_invite(). The indicated status code is 1089 * the value received from the peer in Invitation Response with 0 1090 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a 1091 * local failure in transmitting the Invitation Request. 1092 */ 1093 void (*invitation_result)(void *ctx, int status, const u8 *bssid, 1094 const struct p2p_channels *channels, 1095 const u8 *addr, int freq, int peer_oper_freq); 1096 1097 /** 1098 * go_connected - Check whether we are connected to a GO 1099 * @ctx: Callback context from cb_ctx 1100 * @dev_addr: P2P Device Address of a GO 1101 * Returns: 1 if we are connected as a P2P client to the specified GO 1102 * or 0 if not. 1103 */ 1104 int (*go_connected)(void *ctx, const u8 *dev_addr); 1105 1106 /** 1107 * presence_resp - Callback on Presence Response 1108 * @ctx: Callback context from cb_ctx 1109 * @src: Source address (GO's P2P Interface Address) 1110 * @status: Result of the request (P2P_SC_*) 1111 * @noa: Returned NoA value 1112 * @noa_len: Length of the NoA buffer in octets 1113 */ 1114 void (*presence_resp)(void *ctx, const u8 *src, u8 status, 1115 const u8 *noa, size_t noa_len); 1116 1117 /** 1118 * is_concurrent_session_active - Check whether concurrent session is 1119 * active on other virtual interfaces 1120 * @ctx: Callback context from cb_ctx 1121 * Returns: 1 if concurrent session is active on other virtual interface 1122 * or 0 if not. 1123 */ 1124 int (*is_concurrent_session_active)(void *ctx); 1125 1126 /** 1127 * is_p2p_in_progress - Check whether P2P operation is in progress 1128 * @ctx: Callback context from cb_ctx 1129 * Returns: 1 if P2P operation (e.g., group formation) is in progress 1130 * or 0 if not. 1131 */ 1132 int (*is_p2p_in_progress)(void *ctx); 1133 1134 /** 1135 * Determine if we have a persistent group we share with remote peer 1136 * and allocate interface for this group if needed 1137 * @ctx: Callback context from cb_ctx 1138 * @addr: Peer device address to search for 1139 * @ssid: Persistent group SSID or %NULL if any 1140 * @ssid_len: Length of @ssid 1141 * @go_dev_addr: Buffer for returning GO P2P Device Address 1142 * @ret_ssid: Buffer for returning group SSID 1143 * @ret_ssid_len: Buffer for returning length of @ssid 1144 * @intended_iface_addr: Buffer for returning intended iface address 1145 * Returns: 1 if a matching persistent group was found, 0 otherwise 1146 */ 1147 int (*get_persistent_group)(void *ctx, const u8 *addr, const u8 *ssid, 1148 size_t ssid_len, u8 *go_dev_addr, 1149 u8 *ret_ssid, size_t *ret_ssid_len, 1150 u8 *intended_iface_addr); 1151 1152 /** 1153 * Get information about a possible local GO role 1154 * @ctx: Callback context from cb_ctx 1155 * @intended_addr: Buffer for returning intended GO interface address 1156 * @ssid: Buffer for returning group SSID 1157 * @ssid_len: Buffer for returning length of @ssid 1158 * @group_iface: Buffer for returning whether a separate group interface 1159 * would be used 1160 * @freq: Variable for returning the current operating frequency of a 1161 * currently running P2P GO. 1162 * Returns: 1 if GO info found, 0 otherwise 1163 * 1164 * This is used to compose New Group settings (SSID, and intended 1165 * address) during P2PS provisioning if results of provisioning *might* 1166 * result in our being an autonomous GO. 1167 */ 1168 int (*get_go_info)(void *ctx, u8 *intended_addr, 1169 u8 *ssid, size_t *ssid_len, int *group_iface, 1170 unsigned int *freq); 1171 1172 /** 1173 * remove_stale_groups - Remove stale P2PS groups 1174 * 1175 * Because P2PS stages *potential* GOs, and remote devices can remove 1176 * credentials unilaterally, we need to make sure we don't let stale 1177 * unusable groups build up. 1178 */ 1179 int (*remove_stale_groups)(void *ctx, const u8 *peer, const u8 *go, 1180 const u8 *ssid, size_t ssid_len); 1181 1182 /** 1183 * p2ps_prov_complete - P2PS provisioning complete 1184 * 1185 * When P2PS provisioning completes (successfully or not) we must 1186 * transmit all of the results to the upper layers. 1187 */ 1188 void (*p2ps_prov_complete)(void *ctx, enum p2p_status_code status, 1189 const u8 *dev, 1190 const u8 *adv_mac, const u8 *ses_mac, 1191 const u8 *grp_mac, u32 adv_id, u32 ses_id, 1192 u8 conncap, int passwd_id, 1193 const u8 *persist_ssid, 1194 size_t persist_ssid_size, int response_done, 1195 int prov_start, const char *session_info, 1196 const u8 *feat_cap, size_t feat_cap_len, 1197 unsigned int freq, const u8 *group_ssid, 1198 size_t group_ssid_len); 1199 1200 /** 1201 * prov_disc_resp_cb - Callback for indicating completion of PD Response 1202 * @ctx: Callback context from cb_ctx 1203 * Returns: 1 if operation was started, 0 otherwise 1204 * 1205 * This callback can be used to perform any pending actions after 1206 * provisioning. It is mainly used for P2PS pending group creation. 1207 */ 1208 int (*prov_disc_resp_cb)(void *ctx); 1209 1210 /** 1211 * p2ps_group_capability - Determine group capability 1212 * @ctx: Callback context from cb_ctx 1213 * @incoming: Peer requested roles, expressed with P2PS_SETUP_* bitmap. 1214 * @role: Local roles, expressed with P2PS_SETUP_* bitmap. 1215 * @force_freq: Variable for returning forced frequency for the group. 1216 * @pref_freq: Variable for returning preferred frequency for the group. 1217 * Returns: P2PS_SETUP_* bitmap of group capability result. 1218 * 1219 * This function can be used to determine group capability and 1220 * frequencies based on information from P2PS PD exchange and the 1221 * current state of ongoing groups and driver capabilities. 1222 */ 1223 u8 (*p2ps_group_capability)(void *ctx, u8 incoming, u8 role, 1224 unsigned int *force_freq, 1225 unsigned int *pref_freq); 1226 1227 /** 1228 * get_pref_freq_list - Get preferred frequency list for an interface 1229 * @ctx: Callback context from cb_ctx 1230 * @go: Whether the use if for GO role 1231 * @len: Length of freq_list in entries (both IN and OUT) 1232 * @freq_list: Buffer for returning the preferred frequencies (MHz) 1233 * Returns: 0 on success, -1 on failure 1234 * 1235 * This function can be used to query the preferred frequency list from 1236 * the driver specific to a particular interface type. 1237 */ 1238 int (*get_pref_freq_list)(void *ctx, int go, 1239 unsigned int *len, 1240 struct weighted_pcl *freq_list); 1241 1242 /** 1243 * register_bootstrap_comeback - Register timeout to initiate bootstrap 1244 * comeback request 1245 * @ctx: Callback context from cb_ctx 1246 * @addr: P2P Device Address to which comeback request is to be sent 1247 * @comeback_after: Time in TUs after which comeback request is sent 1248 * 1249 * This function can be used to send comeback request after given 1250 * timeout. 1251 */ 1252 void (*register_bootstrap_comeback)(void *ctx, const u8 *addr, 1253 u16 comeback_after); 1254 1255 /** 1256 * bootstrap_req_rx - Indicate bootstrap request from a P2P peer 1257 * @ctx: Callback context from cb_ctx 1258 * @addr: P2P device address from which bootstrap request was received 1259 * @bootstrap_method: Bootstrapping method request by the peer device 1260 * 1261 * This function can be used to notify that bootstrap request is 1262 * received from a P2P peer. 1263 */ 1264 void (*bootstrap_req_rx)(void *ctx, const u8 *addr, 1265 u16 bootstrap_method); 1266 1267 /** 1268 * bootstrap_completed - Indicate bootstrapping completed with P2P peer 1269 * @ctx: Callback context from cb_ctx 1270 * @addr: P2P device address with which bootstrapping is completed 1271 * @status: P2P Status Code of bootstrapping handshake 1272 * @freq: Frequency in which bootstrapping is done 1273 * 1274 * This function can be used to notify the status of bootstrapping 1275 * handshake. 1276 */ 1277 void (*bootstrap_completed)(void *ctx, const u8 *addr, 1278 enum p2p_status_code status, int freq); 1279 }; 1280 1281 1282 /* P2P module initialization/deinitialization */ 1283 1284 /** 1285 * p2p_init - Initialize P2P module 1286 * @cfg: P2P module configuration 1287 * Returns: Pointer to private data or %NULL on failure 1288 * 1289 * This function is used to initialize global P2P module context (one per 1290 * device). The P2P module will keep a copy of the configuration data, so the 1291 * caller does not need to maintain this structure. However, the callback 1292 * functions and the context parameters to them must be kept available until 1293 * the P2P module is deinitialized with p2p_deinit(). 1294 */ 1295 struct p2p_data * p2p_init(const struct p2p_config *cfg); 1296 1297 /** 1298 * p2p_deinit - Deinitialize P2P module 1299 * @p2p: P2P module context from p2p_init() 1300 */ 1301 void p2p_deinit(struct p2p_data *p2p); 1302 1303 /** 1304 * p2p_flush - Flush P2P module state 1305 * @p2p: P2P module context from p2p_init() 1306 * 1307 * This command removes the P2P module state like peer device entries. 1308 */ 1309 void p2p_flush(struct p2p_data *p2p); 1310 1311 /** 1312 * p2p_unauthorize - Unauthorize the specified peer device 1313 * @p2p: P2P module context from p2p_init() 1314 * @addr: P2P peer entry to be unauthorized 1315 * Returns: 0 on success, -1 on failure 1316 * 1317 * This command removes any connection authorization from the specified P2P 1318 * peer device address. This can be used, e.g., to cancel effect of a previous 1319 * p2p_authorize() or p2p_connect() call that has not yet resulted in completed 1320 * GO Negotiation. 1321 */ 1322 int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr); 1323 1324 /** 1325 * p2p_set_dev_name - Set device name 1326 * @p2p: P2P module context from p2p_init() 1327 * Returns: 0 on success, -1 on failure 1328 * 1329 * This function can be used to update the P2P module configuration with 1330 * information that was not available at the time of the p2p_init() call. 1331 */ 1332 int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name); 1333 1334 int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer); 1335 int p2p_set_model_name(struct p2p_data *p2p, const char *model_name); 1336 int p2p_set_model_number(struct p2p_data *p2p, const char *model_number); 1337 int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number); 1338 1339 void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods); 1340 void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid); 1341 1342 /** 1343 * p2p_set_pri_dev_type - Set primary device type 1344 * @p2p: P2P module context from p2p_init() 1345 * Returns: 0 on success, -1 on failure 1346 * 1347 * This function can be used to update the P2P module configuration with 1348 * information that was not available at the time of the p2p_init() call. 1349 */ 1350 int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type); 1351 1352 /** 1353 * p2p_set_sec_dev_types - Set secondary device types 1354 * @p2p: P2P module context from p2p_init() 1355 * Returns: 0 on success, -1 on failure 1356 * 1357 * This function can be used to update the P2P module configuration with 1358 * information that was not available at the time of the p2p_init() call. 1359 */ 1360 int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8], 1361 size_t num_dev_types); 1362 1363 int p2p_set_country(struct p2p_data *p2p, const char *country); 1364 1365 1366 /* Commands from upper layer management entity */ 1367 1368 enum p2p_discovery_type { 1369 P2P_FIND_START_WITH_FULL, 1370 P2P_FIND_ONLY_SOCIAL, 1371 P2P_FIND_PROGRESSIVE 1372 }; 1373 1374 /** 1375 * p2p_find - Start P2P Find (Device Discovery) 1376 * @p2p: P2P module context from p2p_init() 1377 * @timeout: Timeout for find operation in seconds or 0 for no timeout 1378 * @type: Device Discovery type 1379 * @num_req_dev_types: Number of requested device types 1380 * @req_dev_types: Requested device types array, must be an array 1381 * containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no 1382 * requested device types. 1383 * @dev_id: Device ID to search for or %NULL to find all devices 1384 * @search_delay: Extra delay in milliseconds between search iterations 1385 * @seek_count: Number of ASP Service Strings in the seek_string array 1386 * @seek_string: ASP Service Strings to query for in Probe Requests 1387 * @freq: Requested first scan frequency (in MHz) to modify type == 1388 * P2P_FIND_START_WITH_FULL behavior. 0 = Use normal full scan. 1389 * If p2p_find is already in progress, this parameter is ignored and full 1390 * scan will be executed. 1391 * @include_6ghz: Include 6 GHz channels in P2P find 1392 * Returns: 0 on success, -1 on failure 1393 */ 1394 int p2p_find(struct p2p_data *p2p, unsigned int timeout, 1395 enum p2p_discovery_type type, 1396 unsigned int num_req_dev_types, const u8 *req_dev_types, 1397 const u8 *dev_id, unsigned int search_delay, 1398 u8 seek_count, const char **seek_string, int freq, 1399 bool include_6ghz); 1400 1401 /** 1402 * p2p_notify_scan_trigger_status - Indicate scan trigger status 1403 * @p2p: P2P module context from p2p_init() 1404 * @status: 0 on success, -1 on failure 1405 */ 1406 void p2p_notify_scan_trigger_status(struct p2p_data *p2p, int status); 1407 1408 /** 1409 * p2p_stop_find - Stop P2P Find (Device Discovery) 1410 * @p2p: P2P module context from p2p_init() 1411 */ 1412 void p2p_stop_find(struct p2p_data *p2p); 1413 1414 /** 1415 * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq 1416 * @p2p: P2P module context from p2p_init() 1417 * @freq: Frequency in MHz for next operation 1418 * 1419 * This is like p2p_stop_find(), but Listen state is not stopped if we are 1420 * already on the same frequency. 1421 */ 1422 void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq); 1423 1424 /** 1425 * p2p_listen - Start P2P Listen state for specified duration 1426 * @p2p: P2P module context from p2p_init() 1427 * @timeout: Listen state duration in milliseconds 1428 * Returns: 0 on success, -1 on failure 1429 * 1430 * This function can be used to request the P2P module to keep the device 1431 * discoverable on the listen channel for an extended set of time. At least in 1432 * its current form, this is mainly used for testing purposes and may not be of 1433 * much use for normal P2P operations. 1434 */ 1435 int p2p_listen(struct p2p_data *p2p, unsigned int timeout); 1436 1437 /** 1438 * p2p_stop_listen - Stop P2P Listen 1439 * @p2p: P2P module context from p2p_init() 1440 */ 1441 void p2p_stop_listen(struct p2p_data *p2p); 1442 1443 /** 1444 * p2p_connect - Start P2P group formation (GO negotiation) 1445 * @p2p: P2P module context from p2p_init() 1446 * @peer_addr: MAC address of the peer P2P client 1447 * @wps_method: WPS method to be used in provisioning 1448 * @go_intent: Local GO intent value (1..15) 1449 * @own_interface_addr: Intended interface address to use with the group 1450 * @force_freq: The only allowed channel frequency in MHz or 0 1451 * @persistent_group: Whether to create a persistent group (0 = no, 1 = 1452 * persistent group without persistent reconnect, 2 = persistent group with 1453 * persistent reconnect) 1454 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate 1455 * a new SSID 1456 * @force_ssid_len: Length of $force_ssid buffer 1457 * @pd_before_go_neg: Whether to send Provision Discovery prior to GO 1458 * Negotiation as an interoperability workaround when initiating group 1459 * formation 1460 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 1461 * force_freq == 0) 1462 * @oob_pw_id: OOB password identifier 1463 * @p2p2: Device supports P2P2 features 1464 * @bootstrap: Bootstrapping method requested for P2P2 provision discovery 1465 * @password: P2P2 pairing password or %NULL for opportunistic method 1466 * Returns: 0 on success, -1 on failure 1467 */ 1468 int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr, 1469 enum p2p_wps_method wps_method, 1470 int go_intent, const u8 *own_interface_addr, 1471 unsigned int force_freq, int persistent_group, 1472 const u8 *force_ssid, size_t force_ssid_len, 1473 int pd_before_go_neg, unsigned int pref_freq, u16 oob_pw_id, 1474 bool p2p2, u16 bootstrap, const char *password); 1475 1476 /** 1477 * p2p_authorize - Authorize P2P group formation (GO negotiation) 1478 * @p2p: P2P module context from p2p_init() 1479 * @peer_addr: MAC address of the peer P2P client 1480 * @wps_method: WPS method to be used in provisioning 1481 * @go_intent: Local GO intent value (1..15) 1482 * @own_interface_addr: Intended interface address to use with the group 1483 * @force_freq: The only allowed channel frequency in MHz or 0 1484 * @persistent_group: Whether to create a persistent group (0 = no, 1 = 1485 * persistent group without persistent reconnect, 2 = persistent group with 1486 * persistent reconnect) 1487 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate 1488 * a new SSID 1489 * @force_ssid_len: Length of $force_ssid buffer 1490 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 1491 * force_freq == 0) 1492 * @oob_pw_id: OOB password identifier 1493 * @bootstrap: Bootstrapping method requested for P2P2 provision discovery 1494 * @password: P2P2 pairing password or %NULL for opportunistic method 1495 * Returns: 0 on success, -1 on failure 1496 * 1497 * This is like p2p_connect(), but the actual group negotiation is not 1498 * initiated automatically, i.e., the other end is expected to do that. 1499 */ 1500 int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr, 1501 enum p2p_wps_method wps_method, 1502 int go_intent, const u8 *own_interface_addr, 1503 unsigned int force_freq, int persistent_group, 1504 const u8 *force_ssid, size_t force_ssid_len, 1505 unsigned int pref_freq, u16 oob_pw_id, u16 bootstrap, 1506 const char *password); 1507 1508 /** 1509 * p2p_reject - Reject peer device (explicitly block connection attempts) 1510 * @p2p: P2P module context from p2p_init() 1511 * @peer_addr: MAC address of the peer P2P client 1512 * Returns: 0 on success, -1 on failure 1513 */ 1514 int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr); 1515 1516 /** 1517 * p2p_prov_disc_req - Send Provision Discovery Request 1518 * @p2p: P2P module context from p2p_init() 1519 * @peer_addr: MAC address of the peer P2P client 1520 * @p2ps_prov: Provisioning info for P2PS 1521 * @config_methods: WPS Config Methods value (only one bit set) 1522 * @join: Whether this is used by a client joining an active group 1523 * @force_freq: Forced TX frequency for the frame (mainly for the join case) 1524 * @user_initiated_pd: Flag to indicate if initiated by user or not 1525 * Returns: 0 on success, -1 on failure 1526 * 1527 * This function can be used to request a discovered P2P peer to display a PIN 1528 * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us 1529 * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame 1530 * is transmitted once immediately and if no response is received, the frame 1531 * will be sent again whenever the target device is discovered during device 1532 * dsicovery (start with a p2p_find() call). Response from the peer is 1533 * indicated with the p2p_config::prov_disc_resp() callback. 1534 */ 1535 int p2p_prov_disc_req(struct p2p_data *p2p, const u8 *peer_addr, 1536 struct p2ps_provision *p2ps_prov, u16 config_methods, 1537 int join, int force_freq, 1538 int user_initiated_pd); 1539 1540 /** 1541 * p2p_sd_request - Schedule a service discovery query 1542 * @p2p: P2P module context from p2p_init() 1543 * @dst: Destination peer or %NULL to apply for all peers 1544 * @tlvs: P2P Service Query TLV(s) 1545 * Returns: Reference to the query or %NULL on failure 1546 * 1547 * Response to the query is indicated with the p2p_config::sd_response() 1548 * callback. 1549 */ 1550 void * p2p_sd_request(struct p2p_data *p2p, const u8 *dst, 1551 const struct wpabuf *tlvs); 1552 1553 #ifdef CONFIG_WIFI_DISPLAY 1554 void * p2p_sd_request_wfd(struct p2p_data *p2p, const u8 *dst, 1555 const struct wpabuf *tlvs); 1556 #endif /* CONFIG_WIFI_DISPLAY */ 1557 1558 /** 1559 * p2p_sd_cancel_request - Cancel a pending service discovery query 1560 * @p2p: P2P module context from p2p_init() 1561 * @req: Query reference from p2p_sd_request() 1562 * Returns: 0 if request for cancelled; -1 if not found 1563 */ 1564 int p2p_sd_cancel_request(struct p2p_data *p2p, void *req); 1565 1566 /** 1567 * p2p_sd_response - Send response to a service discovery query 1568 * @p2p: P2P module context from p2p_init() 1569 * @freq: Frequency from p2p_config::sd_request() callback 1570 * @dst: Destination address from p2p_config::sd_request() callback 1571 * @dialog_token: Dialog token from p2p_config::sd_request() callback 1572 * @resp_tlvs: P2P Service Response TLV(s) 1573 * 1574 * This function is called as a response to the request indicated with 1575 * p2p_config::sd_request() callback. 1576 */ 1577 void p2p_sd_response(struct p2p_data *p2p, int freq, const u8 *dst, 1578 u8 dialog_token, const struct wpabuf *resp_tlvs); 1579 1580 /** 1581 * p2p_sd_service_update - Indicate a change in local services 1582 * @p2p: P2P module context from p2p_init() 1583 * 1584 * This function needs to be called whenever there is a change in availability 1585 * of the local services. This will increment the Service Update Indicator 1586 * value which will be used in SD Request and Response frames. 1587 */ 1588 void p2p_sd_service_update(struct p2p_data *p2p); 1589 1590 1591 enum p2p_invite_role { 1592 P2P_INVITE_ROLE_GO, 1593 P2P_INVITE_ROLE_ACTIVE_GO, 1594 P2P_INVITE_ROLE_CLIENT 1595 }; 1596 1597 /** 1598 * p2p_invite - Invite a P2P Device into a group 1599 * @p2p: P2P module context from p2p_init() 1600 * @peer: Device Address of the peer P2P Device 1601 * @role: Local role in the group 1602 * @bssid: Group BSSID or %NULL if not known 1603 * @ssid: Group SSID 1604 * @ssid_len: Length of ssid in octets 1605 * @force_freq: The only allowed channel frequency in MHz or 0 1606 * @go_dev_addr: Forced GO Device Address or %NULL if none 1607 * @persistent_group: Whether this is to reinvoke a persistent group 1608 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 1609 * force_freq == 0) 1610 * @dev_pw_id: Device Password ID from OOB Device Password (NFC) static handover 1611 * case or -1 if not used 1612 * Returns: 0 on success, -1 on failure 1613 */ 1614 int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role, 1615 const u8 *bssid, const u8 *ssid, size_t ssid_len, 1616 unsigned int force_freq, const u8 *go_dev_addr, 1617 int persistent_group, unsigned int pref_freq, int dev_pw_id); 1618 1619 /** 1620 * p2p_presence_req - Request GO presence 1621 * @p2p: P2P module context from p2p_init() 1622 * @go_interface_addr: GO P2P Interface Address 1623 * @own_interface_addr: Own P2P Interface Address for this group 1624 * @freq: Group operating frequence (in MHz) 1625 * @duration1: Preferred presence duration in microseconds 1626 * @interval1: Preferred presence interval in microseconds 1627 * @duration2: Acceptable presence duration in microseconds 1628 * @interval2: Acceptable presence interval in microseconds 1629 * Returns: 0 on success, -1 on failure 1630 * 1631 * If both duration and interval values are zero, the parameter pair is not 1632 * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0). 1633 */ 1634 int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr, 1635 const u8 *own_interface_addr, unsigned int freq, 1636 u32 duration1, u32 interval1, u32 duration2, 1637 u32 interval2); 1638 1639 /** 1640 * p2p_ext_listen - Set Extended Listen Timing 1641 * @p2p: P2P module context from p2p_init() 1642 * @freq: Group operating frequence (in MHz) 1643 * @period: Availability period in milliseconds (1-65535; 0 to disable) 1644 * @interval: Availability interval in milliseconds (1-65535; 0 to disable) 1645 * Returns: 0 on success, -1 on failure 1646 * 1647 * This function can be used to enable or disable (period = interval = 0) 1648 * Extended Listen Timing. When enabled, the P2P Device will become 1649 * discoverable (go into Listen State) every @interval milliseconds for at 1650 * least @period milliseconds. 1651 */ 1652 int p2p_ext_listen(struct p2p_data *p2p, unsigned int period, 1653 unsigned int interval); 1654 1655 /* Event notifications from upper layer management operations */ 1656 1657 /** 1658 * p2p_wps_success_cb - Report successfully completed WPS provisioning 1659 * @p2p: P2P module context from p2p_init() 1660 * @mac_addr: Peer address 1661 * 1662 * This function is used to report successfully completed WPS provisioning 1663 * during group formation in both GO/Registrar and client/Enrollee roles. 1664 */ 1665 void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr); 1666 1667 /** 1668 * p2p_group_formation_failed - Report failed WPS provisioning 1669 * @p2p: P2P module context from p2p_init() 1670 * 1671 * This function is used to report failed group formation. This can happen 1672 * either due to failed WPS provisioning or due to 15 second timeout during 1673 * the provisioning phase. 1674 */ 1675 void p2p_group_formation_failed(struct p2p_data *p2p); 1676 1677 /** 1678 * p2p_get_provisioning_info - Get any stored provisioning info 1679 * @p2p: P2P module context from p2p_init() 1680 * @addr: Peer P2P Device Address 1681 * Returns: WPS provisioning information (WPS config method) or 0 if no 1682 * information is available 1683 * 1684 * This function is used to retrieve stored WPS provisioning info for the given 1685 * peer. 1686 */ 1687 u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr); 1688 1689 /** 1690 * p2p_clear_provisioning_info - Clear any stored provisioning info 1691 * @p2p: P2P module context from p2p_init() 1692 * @iface_addr: Peer P2P Device Address 1693 * 1694 * This function is used to clear stored WPS provisioning info for the given 1695 * peer. 1696 */ 1697 void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr); 1698 1699 1700 /* Event notifications from lower layer driver operations */ 1701 1702 /** 1703 * enum p2p_probe_req_status 1704 * 1705 * @P2P_PREQ_MALFORMED: frame was not well-formed 1706 * @P2P_PREQ_NOT_LISTEN: device isn't in listen state, frame ignored 1707 * @P2P_PREQ_NOT_P2P: frame was not a P2P probe request 1708 * @P2P_PREQ_P2P_NOT_PROCESSED: frame was P2P but wasn't processed 1709 * @P2P_PREQ_P2P_PROCESSED: frame has been processed by P2P 1710 */ 1711 enum p2p_probe_req_status { 1712 P2P_PREQ_MALFORMED, 1713 P2P_PREQ_NOT_LISTEN, 1714 P2P_PREQ_NOT_P2P, 1715 P2P_PREQ_NOT_PROCESSED, 1716 P2P_PREQ_PROCESSED 1717 }; 1718 1719 /** 1720 * p2p_probe_req_rx - Report reception of a Probe Request frame 1721 * @p2p: P2P module context from p2p_init() 1722 * @addr: Source MAC address 1723 * @dst: Destination MAC address if available or %NULL 1724 * @bssid: BSSID if available or %NULL 1725 * @ie: Information elements from the Probe Request frame body 1726 * @ie_len: Length of ie buffer in octets 1727 * @rx_freq: Probe Request frame RX frequency 1728 * @p2p_lo_started: Whether P2P Listen Offload is started 1729 * Returns: value indicating the type and status of the probe request 1730 */ 1731 enum p2p_probe_req_status 1732 p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst, 1733 const u8 *bssid, const u8 *ie, size_t ie_len, 1734 unsigned int rx_freq, int p2p_lo_started); 1735 1736 /** 1737 * p2p_rx_action - Report received Action frame 1738 * @p2p: P2P module context from p2p_init() 1739 * @da: Destination address of the received Action frame 1740 * @sa: Source address of the received Action frame 1741 * @bssid: Address 3 of the received Action frame 1742 * @category: Category of the received Action frame 1743 * @data: Action frame body after the Category field 1744 * @len: Length of the data buffer in octets 1745 * @freq: Frequency (in MHz) on which the frame was received 1746 */ 1747 void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa, 1748 const u8 *bssid, u8 category, 1749 const u8 *data, size_t len, int freq); 1750 1751 /** 1752 * p2p_scan_res_handler - Indicate a P2P scan results 1753 * @p2p: P2P module context from p2p_init() 1754 * @bssid: BSSID of the scan result 1755 * @freq: Frequency of the channel on which the device was found in MHz 1756 * @rx_time: Time when the result was received 1757 * @level: Signal level (signal strength of the received Beacon/Probe Response 1758 * frame) 1759 * @ies: Pointer to IEs from the scan result 1760 * @ies_len: Length of the ies buffer 1761 * Returns: 0 to continue or 1 to stop scan result indication 1762 * 1763 * This function is called to indicate a scan result entry with P2P IE from a 1764 * scan requested with struct p2p_config::p2p_scan(). This can be called during 1765 * the actual scan process (i.e., whenever a new device is found) or as a 1766 * sequence of calls after the full scan has been completed. The former option 1767 * can result in optimized operations, but may not be supported by all 1768 * driver/firmware designs. The ies buffer need to include at least the P2P IE, 1769 * but it is recommended to include all IEs received from the device. The 1770 * caller does not need to check that the IEs contain a P2P IE before calling 1771 * this function since frames will be filtered internally if needed. 1772 * 1773 * This function will return 1 if it wants to stop scan result iteration (and 1774 * scan in general if it is still in progress). This is used to allow faster 1775 * start of a pending operation, e.g., to start a pending GO negotiation. 1776 */ 1777 int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq, 1778 struct os_reltime *rx_time, int level, const u8 *ies, 1779 size_t ies_len); 1780 1781 /** 1782 * p2p_scan_res_handled - Indicate end of scan results 1783 * @p2p: P2P module context from p2p_init() 1784 * @delay: Search delay for next scan in ms 1785 * 1786 * This function is called to indicate that all P2P scan results from a scan 1787 * have been reported with zero or more calls to p2p_scan_res_handler(). This 1788 * function must be called as a response to successful 1789 * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler() 1790 * calls stopped iteration. 1791 */ 1792 void p2p_scan_res_handled(struct p2p_data *p2p, unsigned int delay); 1793 1794 enum p2p_send_action_result { 1795 P2P_SEND_ACTION_SUCCESS /* Frame was send and acknowledged */, 1796 P2P_SEND_ACTION_NO_ACK /* Frame was sent, but not acknowledged */, 1797 P2P_SEND_ACTION_FAILED /* Frame was not sent due to a failure */ 1798 }; 1799 1800 /** 1801 * p2p_send_action_cb - Notify TX status of an Action frame 1802 * @p2p: P2P module context from p2p_init() 1803 * @freq: Channel frequency in MHz 1804 * @dst: Destination MAC address (Address 1) 1805 * @src: Source MAC address (Address 2) 1806 * @bssid: BSSID (Address 3) 1807 * @result: Result of the transmission attempt 1808 * 1809 * This function is used to indicate the result of an Action frame transmission 1810 * that was requested with struct p2p_config::send_action() callback. 1811 */ 1812 void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst, 1813 const u8 *src, const u8 *bssid, 1814 enum p2p_send_action_result result); 1815 1816 /** 1817 * p2p_listen_cb - Indicate the start of a requested Listen state 1818 * @p2p: P2P module context from p2p_init() 1819 * @freq: Listen channel frequency in MHz 1820 * @duration: Duration for the Listen state in milliseconds 1821 * 1822 * This function is used to indicate that a Listen state requested with 1823 * struct p2p_config::start_listen() callback has started. 1824 */ 1825 void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq, 1826 unsigned int duration); 1827 1828 /** 1829 * p2p_listen_end - Indicate the end of a requested Listen state 1830 * @p2p: P2P module context from p2p_init() 1831 * @freq: Listen channel frequency in MHz 1832 * Returns: 0 if no operations were started, 1 if an operation was started 1833 * 1834 * This function is used to indicate that a Listen state requested with 1835 * struct p2p_config::start_listen() callback has ended. 1836 */ 1837 int p2p_listen_end(struct p2p_data *p2p, unsigned int freq); 1838 1839 void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code, 1840 const u8 *ie, size_t ie_len); 1841 1842 void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code, 1843 const u8 *ie, size_t ie_len); 1844 1845 1846 /* Per-group P2P state for GO */ 1847 1848 struct p2p_group; 1849 1850 /** 1851 * struct p2p_group_config - P2P group configuration 1852 * 1853 * This configuration is provided to the P2P module during initialization of 1854 * the per-group information with p2p_group_init(). 1855 */ 1856 struct p2p_group_config { 1857 /** 1858 * persistent_group - Whether the group is persistent 1859 * 0 = not a persistent group 1860 * 1 = persistent group without persistent reconnect 1861 * 2 = persistent group with persistent reconnect 1862 */ 1863 int persistent_group; 1864 1865 /** 1866 * interface_addr - P2P Interface Address of the group 1867 */ 1868 u8 interface_addr[ETH_ALEN]; 1869 1870 /** 1871 * max_clients - Maximum number of clients in the group 1872 */ 1873 unsigned int max_clients; 1874 1875 /** 1876 * ssid - Group SSID 1877 */ 1878 u8 ssid[SSID_MAX_LEN]; 1879 1880 /** 1881 * ssid_len - Length of SSID 1882 */ 1883 size_t ssid_len; 1884 1885 /** 1886 * freq - Operating channel of the group 1887 */ 1888 int freq; 1889 1890 /** 1891 * ip_addr_alloc - Whether IP address allocation within 4-way handshake 1892 * is supported 1893 */ 1894 int ip_addr_alloc; 1895 1896 /** 1897 * cb_ctx - Context to use with callback functions 1898 */ 1899 void *cb_ctx; 1900 1901 /** 1902 * ie_update - Notification of IE update 1903 * @ctx: Callback context from cb_ctx 1904 * @beacon_ies: P2P IE for Beacon frames or %NULL if no change 1905 * @proberesp_ies: P2P Ie for Probe Response frames 1906 * 1907 * P2P module uses this callback function to notify whenever the P2P IE 1908 * in Beacon or Probe Response frames should be updated based on group 1909 * events. 1910 * 1911 * The callee is responsible for freeing the returned buffer(s) with 1912 * wpabuf_free(). 1913 */ 1914 void (*ie_update)(void *ctx, struct wpabuf *beacon_ies, 1915 struct wpabuf *proberesp_ies); 1916 1917 /** 1918 * idle_update - Notification of changes in group idle state 1919 * @ctx: Callback context from cb_ctx 1920 * @idle: Whether the group is idle (no associated stations) 1921 */ 1922 void (*idle_update)(void *ctx, int idle); 1923 }; 1924 1925 /** 1926 * p2p_group_init - Initialize P2P group 1927 * @p2p: P2P module context from p2p_init() 1928 * @config: P2P group configuration (will be freed by p2p_group_deinit()) 1929 * Returns: Pointer to private data or %NULL on failure 1930 * 1931 * This function is used to initialize per-group P2P module context. Currently, 1932 * this is only used to manage GO functionality and P2P clients do not need to 1933 * create an instance of this per-group information. 1934 */ 1935 struct p2p_group * p2p_group_init(struct p2p_data *p2p, 1936 struct p2p_group_config *config); 1937 1938 /** 1939 * p2p_group_deinit - Deinitialize P2P group 1940 * @group: P2P group context from p2p_group_init() 1941 */ 1942 void p2p_group_deinit(struct p2p_group *group); 1943 1944 /** 1945 * p2p_group_notif_assoc - Notification of P2P client association with GO 1946 * @group: P2P group context from p2p_group_init() 1947 * @addr: Interface address of the P2P client 1948 * @ie: IEs from the (Re)association Request frame 1949 * @len: Length of the ie buffer in octets 1950 * Returns: 0 on success, -1 on failure 1951 */ 1952 int p2p_group_notif_assoc(struct p2p_group *group, const u8 *addr, 1953 const u8 *ie, size_t len); 1954 1955 /** 1956 * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response 1957 * @group: P2P group context from p2p_group_init() 1958 * @status: Status value (P2P_SC_SUCCESS if association succeeded) 1959 * Returns: P2P IE for (Re)association Response or %NULL on failure 1960 * 1961 * The caller is responsible for freeing the returned buffer with 1962 * wpabuf_free(). 1963 */ 1964 struct wpabuf * p2p_group_assoc_resp_ie(struct p2p_group *group, u8 status); 1965 1966 /** 1967 * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO 1968 * @group: P2P group context from p2p_group_init() 1969 * @addr: Interface address of the P2P client 1970 */ 1971 void p2p_group_notif_disassoc(struct p2p_group *group, const u8 *addr); 1972 1973 /** 1974 * p2p_group_notif_formation_done - Notification of completed group formation 1975 * @group: P2P group context from p2p_group_init() 1976 */ 1977 void p2p_group_notif_formation_done(struct p2p_group *group); 1978 1979 /** 1980 * p2p_group_notif_noa - Notification of NoA change 1981 * @group: P2P group context from p2p_group_init() 1982 * @noa: Notice of Absence attribute payload, %NULL if none 1983 * @noa_len: Length of noa buffer in octets 1984 * Returns: 0 on success, -1 on failure 1985 * 1986 * Notify the P2P group management about a new NoA contents. This will be 1987 * inserted into the P2P IEs in Beacon and Probe Response frames with rest of 1988 * the group information. 1989 */ 1990 int p2p_group_notif_noa(struct p2p_group *group, const u8 *noa, 1991 size_t noa_len); 1992 1993 /** 1994 * p2p_group_match_dev_type - Match device types in group with requested type 1995 * @group: P2P group context from p2p_group_init() 1996 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs) 1997 * Returns: 1 on match, 0 on mismatch 1998 * 1999 * This function can be used to match the Requested Device Type attribute in 2000 * WPS IE with the device types of a group member for deciding whether a GO 2001 * should reply to a Probe Request frame. Match will be reported if the WPS IE 2002 * is not requested any specific device type. 2003 */ 2004 int p2p_group_match_dev_type(struct p2p_group *group, struct wpabuf *wps); 2005 2006 /** 2007 * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id 2008 */ 2009 int p2p_group_match_dev_id(struct p2p_group *group, struct wpabuf *p2p); 2010 2011 /** 2012 * p2p_group_go_discover - Send GO Discoverability Request to a group client 2013 * @group: P2P group context from p2p_group_init() 2014 * Returns: 0 on success (frame scheduled); -1 if client was not found 2015 */ 2016 int p2p_group_go_discover(struct p2p_group *group, const u8 *dev_id, 2017 const u8 *searching_dev, int rx_freq); 2018 2019 2020 /* Generic helper functions */ 2021 2022 /** 2023 * p2p_ie_text - Build text format description of P2P IE 2024 * @p2p_ie: P2P IE 2025 * @buf: Buffer for returning text 2026 * @end: Pointer to the end of the buf area 2027 * Returns: Number of octets written to the buffer or -1 on failure 2028 * 2029 * This function can be used to parse P2P IE contents into text format 2030 * field=value lines. 2031 */ 2032 int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end); 2033 2034 /** 2035 * p2p_scan_result_text - Build text format description of P2P IE 2036 * @ies: Information elements from scan results 2037 * @ies_len: ies buffer length in octets 2038 * @buf: Buffer for returning text 2039 * @end: Pointer to the end of the buf area 2040 * Returns: Number of octets written to the buffer or -1 on failure 2041 * 2042 * This function can be used to parse P2P IE contents into text format 2043 * field=value lines. 2044 */ 2045 int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end); 2046 2047 /** 2048 * p2p_parse_dev_addr_in_p2p_ie - Parse P2P Device Address from a concatenated 2049 * P2P IE 2050 * @p2p_ie: P2P IE 2051 * @dev_addr: Buffer for returning P2P Device Address 2052 * Returns: 0 on success or -1 if P2P Device Address could not be parsed 2053 */ 2054 int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr); 2055 2056 /** 2057 * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s) 2058 * @ies: Information elements from scan results 2059 * @ies_len: ies buffer length in octets 2060 * @dev_addr: Buffer for returning P2P Device Address 2061 * Returns: 0 on success or -1 if P2P Device Address could not be parsed 2062 */ 2063 int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr); 2064 2065 /** 2066 * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame 2067 * @p2p: P2P module context from p2p_init() 2068 * @bssid: BSSID 2069 * @buf: Buffer for writing the P2P IE 2070 * @len: Maximum buf length in octets 2071 * @p2p_group: Whether this is for association with a P2P GO 2072 * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none 2073 * Returns: Number of octets written into buf or -1 on failure 2074 */ 2075 int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf, 2076 size_t len, int p2p_group, struct wpabuf *p2p_ie); 2077 2078 /** 2079 * p2p_scan_ie - Build P2P IE for Probe Request 2080 * @p2p: P2P module context from p2p_init() 2081 * @ies: Buffer for writing P2P IE 2082 * @dev_id: Device ID to search for or %NULL for any 2083 * @bands: Frequency bands used in the scan (enum wpa_radio_work_band bitmap) 2084 */ 2085 void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id, 2086 unsigned int bands); 2087 2088 /** 2089 * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie 2090 * @p2p: P2P module context from p2p_init() 2091 * Returns: Number of octets that p2p_scan_ie() may add to the buffer 2092 */ 2093 size_t p2p_scan_ie_buf_len(struct p2p_data *p2p); 2094 2095 /** 2096 * p2p_go_params - Generate random P2P group parameters 2097 * @p2p: P2P module context from p2p_init() 2098 * @params: Buffer for parameters 2099 * Returns: 0 on success, -1 on failure 2100 */ 2101 int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params); 2102 2103 /** 2104 * p2p_get_group_capab - Get Group Capability from P2P IE data 2105 * @p2p_ie: P2P IE(s) contents 2106 * Returns: Group Capability 2107 */ 2108 u8 p2p_get_group_capab(const struct wpabuf *p2p_ie); 2109 2110 /** 2111 * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection 2112 * @p2p_ie: P2P IE(s) contents 2113 * Returns: 0 if cross connection is allow, 1 if not 2114 */ 2115 int p2p_get_cross_connect_disallowed(const struct wpabuf *p2p_ie); 2116 2117 /** 2118 * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data 2119 * @p2p_ie: P2P IE(s) contents 2120 * Returns: Pointer to P2P Device Address or %NULL if not included 2121 */ 2122 const u8 * p2p_get_go_dev_addr(const struct wpabuf *p2p_ie); 2123 2124 /** 2125 * p2p_get_peer_info - Get P2P peer information 2126 * @p2p: P2P module context from p2p_init() 2127 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer 2128 * @next: Whether to select the peer entry following the one indicated by addr 2129 * Returns: Pointer to peer info or %NULL if not found 2130 */ 2131 const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p, 2132 const u8 *addr, int next); 2133 2134 /** 2135 * p2p_get_peer_info_txt - Get internal P2P peer information in text format 2136 * @info: Pointer to P2P peer info from p2p_get_peer_info() 2137 * @buf: Buffer for returning text 2138 * @buflen: Maximum buffer length 2139 * Returns: Number of octets written to the buffer or -1 on failure 2140 * 2141 * Note: This information is internal to the P2P module and subject to change. 2142 * As such, this should not really be used by external programs for purposes 2143 * other than debugging. 2144 */ 2145 int p2p_get_peer_info_txt(const struct p2p_peer_info *info, 2146 char *buf, size_t buflen); 2147 2148 /** 2149 * p2p_peer_known - Check whether P2P peer is known 2150 * @p2p: P2P module context from p2p_init() 2151 * @addr: P2P Device Address of the peer 2152 * Returns: 1 if the specified device is in the P2P peer table or 0 if not 2153 */ 2154 int p2p_peer_known(struct p2p_data *p2p, const u8 *addr); 2155 2156 /** 2157 * p2p_set_client_discoverability - Set client discoverability capability 2158 * @p2p: P2P module context from p2p_init() 2159 * @enabled: Whether client discoverability will be enabled 2160 * 2161 * This function can be used to disable (and re-enable) client discoverability. 2162 * This capability is enabled by default and should not be disabled in normal 2163 * use cases, i.e., this is mainly for testing purposes. 2164 */ 2165 void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled); 2166 2167 /** 2168 * p2p_set_managed_oper - Set managed P2P Device operations capability 2169 * @p2p: P2P module context from p2p_init() 2170 * @enabled: Whether managed P2P Device operations will be enabled 2171 */ 2172 void p2p_set_managed_oper(struct p2p_data *p2p, int enabled); 2173 2174 /** 2175 * p2p_config_get_random_social - Return a random social channel 2176 * @p2p: P2P config 2177 * @op_class: Selected operating class 2178 * @op_channel: Selected social channel 2179 * @avoid_list: Channel ranges to try to avoid or %NULL 2180 * @disallow_list: Channel ranges to discard or %NULL 2181 * Returns: 0 on success, -1 on failure 2182 * 2183 * This function is used before p2p_init is called. A random social channel 2184 * from supports bands 2.4 GHz (channels 1,6,11) and 60 GHz (channel 2) is 2185 * returned on success. 2186 */ 2187 int p2p_config_get_random_social(struct p2p_config *p2p, u8 *op_class, 2188 u8 *op_channel, 2189 struct wpa_freq_range_list *avoid_list, 2190 struct wpa_freq_range_list *disallow_list); 2191 2192 int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel, 2193 u8 forced); 2194 2195 u8 p2p_get_listen_channel(struct p2p_data *p2p); 2196 2197 int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len); 2198 2199 int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr, 2200 u8 *iface_addr); 2201 int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr, 2202 u8 *dev_addr); 2203 2204 void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr); 2205 2206 /** 2207 * p2p_set_cross_connect - Set cross connection capability 2208 * @p2p: P2P module context from p2p_init() 2209 * @enabled: Whether cross connection will be enabled 2210 */ 2211 void p2p_set_cross_connect(struct p2p_data *p2p, int enabled); 2212 2213 int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr); 2214 2215 /** 2216 * p2p_set_intra_bss_dist - Set intra BSS distribution 2217 * @p2p: P2P module context from p2p_init() 2218 * @enabled: Whether intra BSS distribution will be enabled 2219 */ 2220 void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled); 2221 2222 int p2p_channels_includes_freq(const struct p2p_channels *channels, 2223 unsigned int freq); 2224 2225 int p2p_channels_to_freqs(const struct p2p_channels *channels, 2226 int *freq_list, unsigned int max_len); 2227 2228 /** 2229 * p2p_supported_freq - Check whether channel is supported for P2P 2230 * @p2p: P2P module context from p2p_init() 2231 * @freq: Channel frequency in MHz 2232 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 2233 */ 2234 int p2p_supported_freq(struct p2p_data *p2p, unsigned int freq); 2235 2236 /** 2237 * p2p_supported_freq_go - Check whether channel is supported for P2P GO operation 2238 * @p2p: P2P module context from p2p_init() 2239 * @freq: Channel frequency in MHz 2240 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 2241 */ 2242 int p2p_supported_freq_go(struct p2p_data *p2p, unsigned int freq); 2243 2244 /** 2245 * p2p_supported_freq_cli - Check whether channel is supported for P2P client operation 2246 * @p2p: P2P module context from p2p_init() 2247 * @freq: Channel frequency in MHz 2248 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 2249 */ 2250 int p2p_supported_freq_cli(struct p2p_data *p2p, unsigned int freq); 2251 2252 /** 2253 * p2p_get_pref_freq - Get channel from preferred channel list 2254 * @p2p: P2P module context from p2p_init() 2255 * @channels: List of channels 2256 * Returns: Preferred channel 2257 */ 2258 unsigned int p2p_get_pref_freq(struct p2p_data *p2p, 2259 const struct p2p_channels *channels); 2260 2261 void p2p_update_channel_list(struct p2p_data *p2p, 2262 const struct p2p_channels *chan, 2263 const struct p2p_channels *cli_chan); 2264 2265 bool is_p2p_6ghz_disabled(struct p2p_data *p2p); 2266 bool is_p2p_dfs_chan_enabled(struct p2p_data *p2p); 2267 2268 /** 2269 * p2p_set_best_channels - Update best channel information 2270 * @p2p: P2P module context from p2p_init() 2271 * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band 2272 * @freq_5: Frequency (MHz) of best channel in 5 GHz band 2273 * @freq_overall: Frequency (MHz) of best channel overall 2274 */ 2275 void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5, 2276 int freq_overall); 2277 2278 /** 2279 * p2p_set_own_freq_preference - Set own preference for channel 2280 * @p2p: P2P module context from p2p_init() 2281 * @freq: Frequency (MHz) of the preferred channel or 0 if no preference 2282 * 2283 * This function can be used to set a preference on the operating channel based 2284 * on frequencies used on the other virtual interfaces that share the same 2285 * radio. If non-zero, this is used to try to avoid multi-channel concurrency. 2286 */ 2287 void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq); 2288 2289 const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p); 2290 2291 /** 2292 * p2p_get_group_num_members - Get number of members in group 2293 * @group: P2P group context from p2p_group_init() 2294 * Returns: Number of members in the group 2295 */ 2296 unsigned int p2p_get_group_num_members(struct p2p_group *group); 2297 2298 /** 2299 * p2p_client_limit_reached - Check if client limit is reached 2300 * @group: P2P group context from p2p_group_init() 2301 * Returns: 1 if no of clients limit reached 2302 */ 2303 int p2p_client_limit_reached(struct p2p_group *group); 2304 2305 /** 2306 * p2p_iterate_group_members - Iterate group members 2307 * @group: P2P group context from p2p_group_init() 2308 * @next: iteration pointer, must be a pointer to a void * that is set to %NULL 2309 * on the first call and not modified later 2310 * Returns: A P2P Device Address for each call and %NULL for no more members 2311 */ 2312 const u8 * p2p_iterate_group_members(struct p2p_group *group, void **next); 2313 2314 /** 2315 * p2p_group_get_client_interface_addr - Get P2P Interface Address of a client in a group 2316 * @group: P2P group context from p2p_group_init() 2317 * @dev_addr: P2P Device Address of the client 2318 * Returns: P2P Interface Address of the client if found or %NULL if no match 2319 * found 2320 */ 2321 const u8 * p2p_group_get_client_interface_addr(struct p2p_group *group, 2322 const u8 *dev_addr); 2323 2324 /** 2325 * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group 2326 * @group: P2P group context from p2p_group_init() 2327 * @addr: P2P Interface Address of the client 2328 * Returns: P2P Device Address of the client if found or %NULL if no match 2329 * found 2330 */ 2331 const u8 * p2p_group_get_dev_addr(struct p2p_group *group, const u8 *addr); 2332 2333 /** 2334 * p2p_group_is_client_connected - Check whether a specific client is connected 2335 * @group: P2P group context from p2p_group_init() 2336 * @addr: P2P Device Address of the client 2337 * Returns: 1 if client is connected or 0 if not 2338 */ 2339 int p2p_group_is_client_connected(struct p2p_group *group, const u8 *dev_addr); 2340 2341 /** 2342 * p2p_group_get_config - Get the group configuration 2343 * @group: P2P group context from p2p_group_init() 2344 * Returns: The group configuration pointer 2345 */ 2346 const struct p2p_group_config * p2p_group_get_config(struct p2p_group *group); 2347 2348 /** 2349 * p2p_loop_on_all_groups - Run the given callback on all groups 2350 * @p2p: P2P module context from p2p_init() 2351 * @group_callback: The callback function pointer 2352 * @user_data: Some user data pointer which can be %NULL 2353 * 2354 * The group_callback function can stop the iteration by returning 0. 2355 */ 2356 void p2p_loop_on_all_groups(struct p2p_data *p2p, 2357 int (*group_callback)(struct p2p_group *group, 2358 void *user_data), 2359 void *user_data); 2360 2361 /** 2362 * p2p_get_peer_found - Get P2P peer info structure of a found peer 2363 * @p2p: P2P module context from p2p_init() 2364 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer 2365 * @next: Whether to select the peer entry following the one indicated by addr 2366 * Returns: The first P2P peer info available or %NULL if no such peer exists 2367 */ 2368 const struct p2p_peer_info * 2369 p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next); 2370 2371 /** 2372 * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions 2373 * @p2p: P2P module context from p2p_init() 2374 */ 2375 void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p); 2376 2377 /** 2378 * p2p_add_wps_vendor_extension - Add a WPS vendor extension 2379 * @p2p: P2P module context from p2p_init() 2380 * @vendor_ext: The vendor extensions to add 2381 * Returns: 0 on success, -1 on failure 2382 * 2383 * The wpabuf structures in the array are owned by the P2P 2384 * module after this call. 2385 */ 2386 int p2p_add_wps_vendor_extension(struct p2p_data *p2p, 2387 const struct wpabuf *vendor_ext); 2388 2389 /** 2390 * p2p_set_oper_channel - Set the P2P operating channel 2391 * @p2p: P2P module context from p2p_init() 2392 * @op_reg_class: Operating regulatory class to set 2393 * @op_channel: operating channel to set 2394 * @cfg_op_channel : Whether op_channel is hardcoded in configuration 2395 * Returns: 0 on success, -1 on failure 2396 */ 2397 int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel, 2398 int cfg_op_channel); 2399 2400 /** 2401 * p2p_set_pref_chan - Set P2P preferred channel list 2402 * @p2p: P2P module context from p2p_init() 2403 * @num_pref_chan: Number of entries in pref_chan list 2404 * @pref_chan: Preferred channels or %NULL to remove preferences 2405 * Returns: 0 on success, -1 on failure 2406 */ 2407 int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan, 2408 const struct p2p_channel *pref_chan); 2409 2410 /** 2411 * p2p_set_no_go_freq - Set no GO channel ranges 2412 * @p2p: P2P module context from p2p_init() 2413 * @list: Channel ranges or %NULL to remove restriction 2414 * Returns: 0 on success, -1 on failure 2415 */ 2416 int p2p_set_no_go_freq(struct p2p_data *p2p, 2417 const struct wpa_freq_range_list *list); 2418 2419 /** 2420 * p2p_in_progress - Check whether a P2P operation is progress 2421 * @p2p: P2P module context from p2p_init() 2422 * Returns: 0 if P2P module is idle, 1 if an operation is in progress but not 2423 * in search state, or 2 if search state operation is in progress 2424 */ 2425 int p2p_in_progress(struct p2p_data *p2p); 2426 2427 const char * p2p_wps_method_text(enum p2p_wps_method method); 2428 2429 /** 2430 * p2p_set_config_timeout - Set local config timeouts 2431 * @p2p: P2P module context from p2p_init() 2432 * @go_timeout: Time in 10 ms units it takes to start the GO mode 2433 * @client_timeout: Time in 10 ms units it takes to start the client mode 2434 */ 2435 void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout, 2436 u8 client_timeout); 2437 2438 int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie); 2439 int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie); 2440 int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie); 2441 int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie); 2442 int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie); 2443 int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie); 2444 int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie); 2445 int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie); 2446 int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem); 2447 int p2p_set_wfd_r2_dev_info(struct p2p_data *p2p, const struct wpabuf *elem); 2448 int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem); 2449 int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p, 2450 const struct wpabuf *elem); 2451 struct wpabuf * wifi_display_encaps(struct wpabuf *subelems); 2452 2453 /** 2454 * p2p_set_disc_int - Set min/max discoverable interval for p2p_find 2455 * @p2p: P2P module context from p2p_init() 2456 * @min_disc_int: minDiscoverableInterval (in units of 100 TU); default 1 2457 * @max_disc_int: maxDiscoverableInterval (in units of 100 TU); default 3 2458 * @max_disc_tu: Maximum number of TUs (1.024 ms) for discoverable interval; or 2459 * -1 not to limit 2460 * Returns: 0 on success, or -1 on failure 2461 * 2462 * This function can be used to configure minDiscoverableInterval and 2463 * maxDiscoverableInterval parameters for the Listen state during device 2464 * discovery (p2p_find). A random number of 100 TU units is picked for each 2465 * Listen state iteration from [min_disc_int,max_disc_int] range. 2466 * 2467 * max_disc_tu can be used to further limit the discoverable duration. However, 2468 * it should be noted that use of this parameter is not recommended since it 2469 * would not be compliant with the P2P specification. 2470 */ 2471 int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int, 2472 int max_disc_tu); 2473 2474 /** 2475 * p2p_get_state_txt - Get current P2P state for debug purposes 2476 * @p2p: P2P module context from p2p_init() 2477 * Returns: Name of the current P2P module state 2478 * 2479 * It should be noted that the P2P module state names are internal information 2480 * and subject to change at any point, i.e., this information should be used 2481 * mainly for debugging purposes. 2482 */ 2483 const char * p2p_get_state_txt(struct p2p_data *p2p); 2484 2485 struct wpabuf * p2p_build_nfc_handover_req(struct p2p_data *p2p, 2486 int client_freq, 2487 const u8 *go_dev_addr, 2488 const u8 *ssid, size_t ssid_len); 2489 struct wpabuf * p2p_build_nfc_handover_sel(struct p2p_data *p2p, 2490 int client_freq, 2491 const u8 *go_dev_addr, 2492 const u8 *ssid, size_t ssid_len); 2493 2494 bool p2p_pref_freq_allowed(const struct weighted_pcl *freq_list, bool go); 2495 2496 struct p2p_nfc_params { 2497 int sel; 2498 const u8 *wsc_attr; 2499 size_t wsc_len; 2500 const u8 *p2p_attr; 2501 size_t p2p_len; 2502 2503 enum { 2504 NO_ACTION, JOIN_GROUP, AUTH_JOIN, INIT_GO_NEG, RESP_GO_NEG, 2505 BOTH_GO, PEER_CLIENT 2506 } next_step; 2507 struct p2p_peer_info *peer; 2508 u8 oob_dev_pw[WPS_OOB_PUBKEY_HASH_LEN + 2 + 2509 WPS_OOB_DEVICE_PASSWORD_LEN]; 2510 size_t oob_dev_pw_len; 2511 int go_freq; 2512 u8 go_dev_addr[ETH_ALEN]; 2513 u8 go_ssid[SSID_MAX_LEN]; 2514 size_t go_ssid_len; 2515 }; 2516 2517 int p2p_process_nfc_connection_handover(struct p2p_data *p2p, 2518 struct p2p_nfc_params *params); 2519 2520 void p2p_set_authorized_oob_dev_pw_id(struct p2p_data *p2p, u16 dev_pw_id, 2521 int go_intent, 2522 const u8 *own_interface_addr); 2523 2524 int p2p_set_passphrase_len(struct p2p_data *p2p, unsigned int len); 2525 2526 void p2p_loop_on_known_peers(struct p2p_data *p2p, 2527 void (*peer_callback)(struct p2p_peer_info *peer, 2528 void *user_data), 2529 void *user_data); 2530 2531 void p2p_set_vendor_elems(struct p2p_data *p2p, struct wpabuf **vendor_elem); 2532 2533 void p2p_set_intended_addr(struct p2p_data *p2p, const u8 *intended_addr); 2534 2535 struct p2ps_advertisement * 2536 p2p_service_p2ps_id(struct p2p_data *p2p, u32 adv_id); 2537 int p2p_service_add_asp(struct p2p_data *p2p, int auto_accept, u32 adv_id, 2538 const char *adv_str, u8 svc_state, 2539 u16 config_methods, const char *svc_info, 2540 const u8 *cpt_priority); 2541 int p2p_service_del_asp(struct p2p_data *p2p, u32 adv_id); 2542 void p2p_service_flush_asp(struct p2p_data *p2p); 2543 struct p2ps_advertisement * p2p_get_p2ps_adv_list(struct p2p_data *p2p); 2544 2545 /** 2546 * p2p_expire_peers - Periodic cleanup function to expire peers 2547 * @p2p: P2P module context from p2p_init() 2548 * 2549 * This is a cleanup function that the entity calling p2p_init() is 2550 * expected to call periodically to clean up expired peer entries. 2551 */ 2552 void p2p_expire_peers(struct p2p_data *p2p); 2553 2554 void p2p_set_own_pref_freq_list(struct p2p_data *p2p, 2555 const struct weighted_pcl *pref_freq_list, 2556 unsigned int size); 2557 void p2p_set_override_pref_op_chan(struct p2p_data *p2p, u8 op_class, 2558 u8 chan); 2559 2560 /** 2561 * p2p_group_get_common_freqs - Get the group common frequencies 2562 * @group: P2P group context from p2p_group_init() 2563 * @common_freqs: On return will hold the group common frequencies 2564 * @num: On return will hold the number of group common frequencies 2565 * Returns: 0 on success, -1 otherwise 2566 */ 2567 int p2p_group_get_common_freqs(struct p2p_group *group, int *common_freqs, 2568 unsigned int *num); 2569 2570 struct wpabuf * p2p_build_probe_resp_template(struct p2p_data *p2p, 2571 unsigned int freq); 2572 2573 void p2p_set_6ghz_dev_capab(struct p2p_data *p2p, bool allow_6ghz); 2574 bool is_p2p_6ghz_capable(struct p2p_data *p2p); 2575 bool p2p_is_peer_6ghz_capab(struct p2p_data *p2p, const u8 *addr); 2576 bool p2p_peer_wfd_enabled(struct p2p_data *p2p, const u8 *peer_addr); 2577 bool p2p_wfd_enabled(struct p2p_data *p2p); 2578 bool is_p2p_allow_6ghz(struct p2p_data *p2p); 2579 void set_p2p_allow_6ghz(struct p2p_data *p2p, bool value); 2580 int p2p_remove_6ghz_channels(struct weighted_pcl *pref_freq_list, int size); 2581 int p2p_channel_to_freq(int op_class, int channel); 2582 struct wpabuf * p2p_usd_elems(struct p2p_data *p2p); 2583 void p2p_process_usd_elems(struct p2p_data *p2p, const u8 *ies, u16 ies_len, 2584 const u8 *peer_addr, unsigned int freq); 2585 2586 #endif /* P2P_H */ 2587