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 #include "common/wpa_common.h" 15 16 #define DEVICE_IDENTITY_KEY_MAX_LEN 64 17 #define DEVICE_IDENTITY_KEY_LEN 16 18 #define DEVICE_IDENTITY_TAG_LEN 8 19 #define DEVICE_IDENTITY_NONCE_LEN 8 20 #define DEVICE_MAX_HASH_LEN 32 21 #define DIR_STR_LEN 3 22 23 /* DIRA Cipher versions */ 24 #define DIRA_CIPHER_VERSION_128 0 25 26 struct weighted_pcl; 27 28 /* P2P ASP Setup Capability */ 29 #define P2PS_SETUP_NONE 0 30 #define P2PS_SETUP_NEW BIT(0) 31 #define P2PS_SETUP_CLIENT BIT(1) 32 #define P2PS_SETUP_GROUP_OWNER BIT(2) 33 34 #define P2PS_WILD_HASH_STR "org.wi-fi.wfds" 35 #define P2PS_HASH_LEN 6 36 #define P2P_MAX_QUERY_HASH 6 37 #define P2PS_FEATURE_CAPAB_CPT_MAX 2 38 39 /** 40 * P2P_MAX_PREF_CHANNELS - Maximum number of preferred channels 41 */ 42 #define P2P_MAX_PREF_CHANNELS 100 43 44 /** 45 * P2P_MAX_REG_CLASSES - Maximum number of regulatory classes 46 */ 47 #define P2P_MAX_REG_CLASSES 20 48 49 /** 50 * P2P_MAX_REG_CLASS_CHANNELS - Maximum number of channels per regulatory class 51 */ 52 #define P2P_MAX_REG_CLASS_CHANNELS 60 53 54 /** 55 * struct p2p_channels - List of supported channels 56 */ 57 struct p2p_channels { 58 /** 59 * struct p2p_reg_class - Supported regulatory class 60 */ 61 struct p2p_reg_class { 62 /** 63 * reg_class - Regulatory class (IEEE 802.11-2007, Annex J) 64 */ 65 u8 reg_class; 66 67 /** 68 * channel - Supported channels 69 */ 70 u8 channel[P2P_MAX_REG_CLASS_CHANNELS]; 71 72 /** 73 * channels - Number of channel entries in use 74 */ 75 size_t channels; 76 } reg_class[P2P_MAX_REG_CLASSES]; 77 78 /** 79 * reg_classes - Number of reg_class entries in use 80 */ 81 size_t reg_classes; 82 }; 83 84 enum p2p_wps_method { 85 WPS_NOT_READY, WPS_PIN_DISPLAY, WPS_PIN_KEYPAD, WPS_PBC, WPS_NFC, 86 WPS_P2PS 87 }; 88 89 /** 90 * struct p2p_go_neg_results - P2P Group Owner Negotiation results 91 */ 92 struct p2p_go_neg_results { 93 /** 94 * status - Negotiation result (Status Code) 95 * 96 * 0 (P2P_SC_SUCCESS) indicates success. Non-zero values indicate 97 * failed negotiation. 98 */ 99 int status; 100 101 /** 102 * role_go - Whether local end is Group Owner 103 */ 104 int role_go; 105 106 /** 107 * freq - Frequency of the group operational channel in MHz 108 */ 109 int freq; 110 111 int ht40; 112 113 int vht; 114 115 int edmg; 116 117 u8 max_oper_chwidth; 118 119 unsigned int vht_center_freq2; 120 121 /** 122 * he - Indicates if IEEE 802.11ax HE is enabled 123 */ 124 int he; 125 126 /** 127 * ssid - SSID of the group 128 */ 129 u8 ssid[SSID_MAX_LEN]; 130 131 /** 132 * ssid_len - Length of SSID in octets 133 */ 134 size_t ssid_len; 135 136 /** 137 * psk - WPA pre-shared key (256 bits) (GO only) 138 */ 139 u8 psk[32]; 140 141 /** 142 * psk_set - Whether PSK field is configured (GO only) 143 */ 144 int psk_set; 145 146 /** 147 * passphrase - WPA2-Personal passphrase for the group (GO only) 148 */ 149 char passphrase[64]; 150 151 /** 152 * peer_device_addr - P2P Device Address of the peer 153 */ 154 u8 peer_device_addr[ETH_ALEN]; 155 156 /** 157 * peer_interface_addr - P2P Interface Address of the peer 158 */ 159 u8 peer_interface_addr[ETH_ALEN]; 160 161 /** 162 * wps_method - WPS method to be used during provisioning 163 */ 164 enum p2p_wps_method wps_method; 165 166 #define P2P_MAX_CHANNELS 50 167 168 /** 169 * freq_list - Zero-terminated list of possible operational channels 170 */ 171 int freq_list[P2P_MAX_CHANNELS]; 172 173 /** 174 * persistent_group - Whether the group should be made persistent 175 * 0 = not persistent 176 * 1 = persistent group without persistent reconnect 177 * 2 = persistent group with persistent reconnect 178 */ 179 int persistent_group; 180 181 /** 182 * peer_config_timeout - Peer configuration timeout (in 10 msec units) 183 */ 184 unsigned int peer_config_timeout; 185 186 /** 187 * p2p2 - Whether this group uses P2P2 188 */ 189 bool p2p2; 190 191 /** 192 * akmp - The negotiated PASN AKMP for P2P2 193 */ 194 int akmp; 195 196 /** 197 * cipher - Pairwise cipher(s) for the group for P2P2 198 */ 199 int cipher; 200 201 /** 202 * pmkid - PMKID for P2P2 when PMK is derived as part of pairing 203 */ 204 u8 pmkid[PMKID_LEN]; 205 206 /** 207 * pmk - PMK for P2P2 when PMK is derived as part of pairing 208 */ 209 u8 pmk[PMK_LEN_MAX]; 210 211 /** 212 * pmk_len - Length of @pmk in octets 213 */ 214 size_t pmk_len; 215 216 /** 217 * sae_password - SAE password for the group (P2P2) 218 */ 219 char sae_password[100]; 220 }; 221 222 struct p2ps_provision { 223 /** 224 * pd_seeker - P2PS provision discovery seeker role 225 */ 226 unsigned int pd_seeker:1; 227 228 /** 229 * status - Remote returned provisioning status code 230 */ 231 int status; 232 233 /** 234 * adv_id - P2PS Advertisement ID 235 */ 236 u32 adv_id; 237 238 /** 239 * session_id - P2PS Session ID 240 */ 241 u32 session_id; 242 243 /** 244 * method - WPS Method (to be) used to establish session 245 */ 246 u16 method; 247 248 /** 249 * conncap - Connection Capabilities negotiated between P2P peers 250 */ 251 u8 conncap; 252 253 /** 254 * role - Info about the roles to be used for this connection 255 */ 256 u8 role; 257 258 /** 259 * session_mac - MAC address of the peer that started the session 260 */ 261 u8 session_mac[ETH_ALEN]; 262 263 /** 264 * adv_mac - MAC address of the peer advertised the service 265 */ 266 u8 adv_mac[ETH_ALEN]; 267 268 /** 269 * cpt_mask - Supported Coordination Protocol Transport mask 270 * 271 * A bitwise mask of supported ASP Coordination Protocol Transports. 272 * This property is set together and corresponds with cpt_priority. 273 */ 274 u8 cpt_mask; 275 276 /** 277 * cpt_priority - Coordination Protocol Transport priority list 278 * 279 * Priorities of supported ASP Coordination Protocol Transports. 280 * This property is set together and corresponds with cpt_mask. 281 * The CPT priority list is 0 terminated. 282 */ 283 u8 cpt_priority[P2PS_FEATURE_CAPAB_CPT_MAX + 1]; 284 285 /** 286 * force_freq - The only allowed channel frequency in MHz or 0. 287 */ 288 unsigned int force_freq; 289 290 /** 291 * pref_freq - Preferred operating frequency in MHz or 0. 292 */ 293 unsigned int pref_freq; 294 295 /** 296 * info - Vendor defined extra Provisioning information 297 */ 298 char info[0]; 299 }; 300 301 struct p2ps_advertisement { 302 struct p2ps_advertisement *next; 303 304 /** 305 * svc_info - Pointer to (internal) Service defined information 306 */ 307 char *svc_info; 308 309 /** 310 * id - P2PS Advertisement ID 311 */ 312 u32 id; 313 314 /** 315 * config_methods - WPS Methods which are allowed for this service 316 */ 317 u16 config_methods; 318 319 /** 320 * state - Current state of the service: 0 - Out Of Service, 1-255 Vendor defined 321 */ 322 u8 state; 323 324 /** 325 * auto_accept - Automatically Accept provisioning request if possible. 326 */ 327 u8 auto_accept; 328 329 /** 330 * hash - 6 octet Service Name has to match against incoming Probe Requests 331 */ 332 u8 hash[P2PS_HASH_LEN]; 333 334 /** 335 * cpt_mask - supported Coordination Protocol Transport mask 336 * 337 * A bitwise mask of supported ASP Coordination Protocol Transports. 338 * This property is set together and corresponds with cpt_priority. 339 */ 340 u8 cpt_mask; 341 342 /** 343 * cpt_priority - Coordination Protocol Transport priority list 344 * 345 * Priorities of supported ASP Coordinatin Protocol Transports. 346 * This property is set together and corresponds with cpt_mask. 347 * The CPT priority list is 0 terminated. 348 */ 349 u8 cpt_priority[P2PS_FEATURE_CAPAB_CPT_MAX + 1]; 350 351 /** 352 * svc_name - NULL Terminated UTF-8 Service Name, and svc_info storage 353 */ 354 char svc_name[0]; 355 }; 356 357 358 struct p2p_data; 359 360 enum p2p_scan_type { 361 P2P_SCAN_SOCIAL, 362 P2P_SCAN_FULL, 363 P2P_SCAN_SPECIFIC, 364 P2P_SCAN_SOCIAL_PLUS_ONE 365 }; 366 367 #define P2P_MAX_WPS_VENDOR_EXT 10 368 369 /** 370 * struct p2p_pairing_config - P2P pairing configuration 371 */ 372 struct p2p_pairing_config { 373 /** 374 * Pairing capable 375 */ 376 bool pairing_capable; 377 378 /** 379 * Enable P2P pairing setup 380 */ 381 bool enable_pairing_setup; 382 383 /** 384 * Enable pairing cache to allow verification 385 */ 386 bool enable_pairing_cache; 387 388 /** 389 * P2P bootstrapping methods supported 390 */ 391 u16 bootstrap_methods; 392 393 /** 394 * Bitmap of supported PASN types 395 */ 396 u8 pasn_type; 397 398 /* Cipher version type */ 399 int dik_cipher; 400 401 /* Buffer to hold the DevIK */ 402 u8 dik_data[DEVICE_IDENTITY_KEY_MAX_LEN]; 403 404 /* Length of DevIK in octets */ 405 size_t dik_len; 406 }; 407 408 /** 409 * struct p2p_peer_info - P2P peer information 410 */ 411 struct p2p_peer_info { 412 /** 413 * p2p_device_addr - P2P Device Address of the peer 414 */ 415 u8 p2p_device_addr[ETH_ALEN]; 416 417 /** 418 * pri_dev_type - Primary Device Type 419 */ 420 u8 pri_dev_type[8]; 421 422 /** 423 * device_name - Device Name (0..32 octets encoded in UTF-8) 424 */ 425 char device_name[WPS_DEV_NAME_MAX_LEN + 1]; 426 427 /** 428 * manufacturer - Manufacturer (0..64 octets encoded in UTF-8) 429 */ 430 char manufacturer[WPS_MANUFACTURER_MAX_LEN + 1]; 431 432 /** 433 * model_name - Model Name (0..32 octets encoded in UTF-8) 434 */ 435 char model_name[WPS_MODEL_NAME_MAX_LEN + 1]; 436 437 /** 438 * model_number - Model Number (0..32 octets encoded in UTF-8) 439 */ 440 char model_number[WPS_MODEL_NUMBER_MAX_LEN + 1]; 441 442 /** 443 * serial_number - Serial Number (0..32 octets encoded in UTF-8) 444 */ 445 char serial_number[WPS_SERIAL_NUMBER_MAX_LEN + 1]; 446 447 /** 448 * level - Signal level 449 */ 450 int level; 451 452 /** 453 * config_methods - WPS Configuration Methods 454 */ 455 u16 config_methods; 456 457 /** 458 * dev_capab - Device Capabilities 459 */ 460 u8 dev_capab; 461 462 /** 463 * group_capab - Group Capabilities 464 */ 465 u8 group_capab; 466 467 /** 468 * wps_sec_dev_type_list - WPS secondary device type list 469 * 470 * This list includes from 0 to 16 Secondary Device Types as indicated 471 * by wps_sec_dev_type_list_len (8 * number of types). 472 */ 473 u8 wps_sec_dev_type_list[WPS_SEC_DEV_TYPE_MAX_LEN]; 474 475 /** 476 * wps_sec_dev_type_list_len - Length of secondary device type list 477 */ 478 size_t wps_sec_dev_type_list_len; 479 480 struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT]; 481 482 /** 483 * wfd_subelems - Wi-Fi Display subelements from WFD IE(s) 484 */ 485 struct wpabuf *wfd_subelems; 486 487 /** 488 * vendor_elems - Unrecognized vendor elements 489 * 490 * This buffer includes any other vendor element than P2P, WPS, and WFD 491 * IE(s) from the frame that was used to discover the peer. 492 */ 493 struct wpabuf *vendor_elems; 494 495 /** 496 * p2ps_instance - P2PS Application Service Info 497 */ 498 struct wpabuf *p2ps_instance; 499 500 /** 501 * pcea_cap_info - Capability info in PCEA 502 */ 503 u16 pcea_cap_info; 504 505 /** 506 * The regulatory info encoding for operation in 6 GHz band 507 */ 508 u8 reg_info; 509 510 /** 511 * p2p_pairing_config - P2P pairing configuration 512 */ 513 struct p2p_pairing_config pairing_config; 514 515 /** 516 * dik_id - For paired peers Identity block ID with PMK 517 */ 518 int dik_id; 519 520 /** 521 * nonce_tag_valid - Whether nonce and tag are valid 522 */ 523 bool nonce_tag_valid; 524 525 /** 526 * nonce - Valid nonce received in a recent discovery frame 527 */ 528 u8 nonce[DEVICE_IDENTITY_NONCE_LEN]; 529 530 /** 531 * tag - Valid tag received in a recent discovery frame 532 */ 533 u8 tag[DEVICE_IDENTITY_TAG_LEN]; 534 }; 535 536 enum p2p_prov_disc_status { 537 P2P_PROV_DISC_SUCCESS, 538 P2P_PROV_DISC_TIMEOUT, 539 P2P_PROV_DISC_REJECTED, 540 P2P_PROV_DISC_TIMEOUT_JOIN, 541 P2P_PROV_DISC_INFO_UNAVAILABLE, 542 }; 543 544 struct p2p_channel { 545 u8 op_class; 546 u8 chan; 547 }; 548 549 /** 550 * struct p2p_config - P2P configuration 551 * 552 * This configuration is provided to the P2P module during initialization with 553 * p2p_init(). 554 */ 555 struct p2p_config { 556 /** 557 * country - Country code to use in P2P operations 558 */ 559 char country[3]; 560 561 /** 562 * reg_class - Regulatory class for own listen channel 563 */ 564 u8 reg_class; 565 566 /** 567 * channel - Own listen channel 568 */ 569 u8 channel; 570 571 /** 572 * channel_forced - the listen channel was forced by configuration 573 * or by control interface and cannot be overridden 574 */ 575 u8 channel_forced; 576 577 /** 578 * Regulatory class for own operational channel 579 */ 580 u8 op_reg_class; 581 582 /** 583 * op_channel - Own operational channel 584 */ 585 u8 op_channel; 586 587 /** 588 * cfg_op_channel - Whether op_channel is hardcoded in configuration 589 */ 590 u8 cfg_op_channel; 591 592 /** 593 * channels - Own supported regulatory classes and channels 594 * 595 * List of supposerted channels per regulatory class. The regulatory 596 * classes are defined in IEEE Std 802.11-2007 Annex J and the 597 * numbering of the clases depends on the configured country code. 598 */ 599 struct p2p_channels channels; 600 601 /** 602 * cli_channels - Additional client channels 603 * 604 * This list of channels (if any) will be used when advertising local 605 * channels during GO Negotiation or Invitation for the cases where the 606 * local end may become the client. This may allow the peer to become a 607 * GO on additional channels if it supports these options. The main use 608 * case for this is to include passive-scan channels on devices that may 609 * not know their current location and have configured most channels to 610 * not allow initiation of radition (i.e., another device needs to take 611 * master responsibilities). 612 */ 613 struct p2p_channels cli_channels; 614 615 /** 616 * num_pref_chan - Number of pref_chan entries 617 */ 618 unsigned int num_pref_chan; 619 620 /** 621 * pref_chan - Preferred channels for GO Negotiation 622 */ 623 struct p2p_channel *pref_chan; 624 625 /** 626 * p2p_6ghz_disable - Disable 6GHz for P2P operations 627 */ 628 bool p2p_6ghz_disable; 629 630 /** 631 * pri_dev_type - Primary Device Type (see WPS) 632 */ 633 u8 pri_dev_type[8]; 634 635 /** 636 * P2P_SEC_DEVICE_TYPES - Maximum number of secondary device types 637 */ 638 #define P2P_SEC_DEVICE_TYPES 5 639 640 /** 641 * sec_dev_type - Optional secondary device types 642 */ 643 u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8]; 644 645 /** 646 * num_sec_dev_types - Number of sec_dev_type entries 647 */ 648 size_t num_sec_dev_types; 649 650 /** 651 * dev_addr - P2P Device Address 652 */ 653 u8 dev_addr[ETH_ALEN]; 654 655 /** 656 * dev_name - Device Name 657 */ 658 char *dev_name; 659 660 char *manufacturer; 661 char *model_name; 662 char *model_number; 663 char *serial_number; 664 665 u8 uuid[16]; 666 u16 config_methods; 667 668 /** 669 * concurrent_operations - Whether concurrent operations are supported 670 */ 671 int concurrent_operations; 672 673 /** 674 * max_peers - Maximum number of discovered peers to remember 675 * 676 * If more peers are discovered, older entries will be removed to make 677 * room for the new ones. 678 */ 679 size_t max_peers; 680 681 /** 682 * p2p_intra_bss - Intra BSS communication is supported 683 */ 684 int p2p_intra_bss; 685 686 /** 687 * ssid_postfix - Postfix data to add to the SSID 688 * 689 * This data will be added to the end of the SSID after the 690 * DIRECT-<random two octets> prefix. 691 */ 692 u8 ssid_postfix[SSID_MAX_LEN - 9]; 693 694 /** 695 * ssid_postfix_len - Length of the ssid_postfix data 696 */ 697 size_t ssid_postfix_len; 698 699 /** 700 * max_listen - Maximum listen duration in ms 701 */ 702 unsigned int max_listen; 703 704 /** 705 * passphrase_len - Passphrase length (8..63) 706 * 707 * This parameter controls the length of the random passphrase that is 708 * generated at the GO. 709 */ 710 unsigned int passphrase_len; 711 712 /** 713 * p2p_pairing_config - P2P pairing configuration 714 */ 715 struct p2p_pairing_config pairing_config; 716 717 /** 718 * reg_info - Regulatory info encoding for operation in 6 GHz band 719 */ 720 u8 reg_info; 721 722 /** 723 * dfs_owner - Enable P2P GO to act as DFS Owner 724 */ 725 bool dfs_owner; 726 727 /** 728 * twt_power_mgmt - Enable TWT based power management for P2P 729 */ 730 bool twt_power_mgmt; 731 732 /** 733 * comeback_after - Bootstrap request unauthorized for peer 734 * 735 * Ask to come back after this many TUs. 736 */ 737 u16 comeback_after; 738 739 /** 740 * chan_switch_req_enable - Enable P2P client channel switch request 741 */ 742 bool chan_switch_req_enable; 743 744 /** 745 * Operating class for own operational channel in Invitation Response 746 */ 747 u8 inv_op_class; 748 749 /** 750 * inv_op_channel - Own operational channel in Invitation Response 751 */ 752 u8 inv_op_channel; 753 754 /** 755 * cb_ctx - Context to use with callback functions 756 */ 757 void *cb_ctx; 758 759 /** 760 * debug_print - Debug print 761 * @ctx: Callback context from cb_ctx 762 * @level: Debug verbosity level (MSG_*) 763 * @msg: Debug message 764 */ 765 void (*debug_print)(void *ctx, int level, const char *msg); 766 767 768 /* Callbacks to request lower layer driver operations */ 769 770 /** 771 * p2p_scan - Request a P2P scan/search 772 * @ctx: Callback context from cb_ctx 773 * @type: Scan type 774 * @freq: Specific frequency (MHz) to scan or 0 for no restriction 775 * @num_req_dev_types: Number of requested device types 776 * @req_dev_types: Array containing requested device types 777 * @dev_id: Device ID to search for or %NULL to find all devices 778 * @pw_id: Device Password ID 779 * @include_6ghz: Include 6 GHz channels in P2P scan 780 * Returns: 0 on success, -1 on failure 781 * 782 * This callback function is used to request a P2P scan or search 783 * operation to be completed. Type type argument specifies which type 784 * of scan is to be done. @P2P_SCAN_SOCIAL indicates that only the 785 * social channels (1, 6, 11) should be scanned. @P2P_SCAN_FULL 786 * indicates that all channels are to be scanned. @P2P_SCAN_SPECIFIC 787 * request a scan of a single channel specified by freq. 788 * @P2P_SCAN_SOCIAL_PLUS_ONE request scan of all the social channels 789 * plus one extra channel specified by freq. 790 * 791 * The full scan is used for the initial scan to find group owners from 792 * all. The other types are used during search phase scan of the social 793 * channels (with potential variation if the Listen channel of the 794 * target peer is known or if other channels are scanned in steps). 795 * 796 * The scan results are returned after this call by calling 797 * p2p_scan_res_handler() for each scan result that has a P2P IE and 798 * then calling p2p_scan_res_handled() to indicate that all scan 799 * results have been indicated. 800 */ 801 int (*p2p_scan)(void *ctx, enum p2p_scan_type type, int freq, 802 unsigned int num_req_dev_types, 803 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id, 804 bool include_6ghz); 805 806 /** 807 * send_probe_resp - Transmit a Probe Response frame 808 * @ctx: Callback context from cb_ctx 809 * @buf: Probe Response frame (including the header and body) 810 * @freq: Forced frequency (in MHz) to use or 0. 811 * Returns: 0 on success, -1 on failure 812 * 813 * This function is used to reply to Probe Request frames that were 814 * indicated with a call to p2p_probe_req_rx(). The response is to be 815 * sent on the same channel, unless otherwise specified, or to be 816 * dropped if the driver is not listening to Probe Request frames 817 * anymore. 818 * 819 * Alternatively, the responsibility for building the Probe Response 820 * frames in Listen state may be in another system component in which 821 * case this function need to be implemented (i.e., the function 822 * pointer can be %NULL). The WPS and P2P IEs to be added for Probe 823 * Response frames in such a case are available from the 824 * start_listen() callback. It should be noted that the received Probe 825 * Request frames must be indicated by calling p2p_probe_req_rx() even 826 * if this send_probe_resp() is not used. 827 */ 828 int (*send_probe_resp)(void *ctx, const struct wpabuf *buf, 829 unsigned int freq); 830 831 /** 832 * send_action - Transmit an Action frame 833 * @ctx: Callback context from cb_ctx 834 * @freq: Frequency in MHz for the channel on which to transmit 835 * @dst: Destination MAC address (Address 1) 836 * @src: Source MAC address (Address 2) 837 * @bssid: BSSID (Address 3) 838 * @buf: Frame body (starting from Category field) 839 * @len: Length of buf in octets 840 * @wait_time: How many msec to wait for a response frame 841 * @scheduled: Return value indicating whether the transmissions was 842 * scheduled to happen once the radio is available 843 * Returns: 0 on success, -1 on failure 844 * 845 * The Action frame may not be transmitted immediately and the status 846 * of the transmission must be reported by calling 847 * p2p_send_action_cb() once the frame has either been transmitted or 848 * it has been dropped due to excessive retries or other failure to 849 * transmit. 850 */ 851 int (*send_action)(void *ctx, unsigned int freq, const u8 *dst, 852 const u8 *src, const u8 *bssid, const u8 *buf, 853 size_t len, unsigned int wait_time, int *scheduled); 854 855 /** 856 * send_action_done - Notify that Action frame sequence was completed 857 * @ctx: Callback context from cb_ctx 858 * 859 * This function is called when the Action frame sequence that was 860 * started with send_action() has been completed, i.e., when there is 861 * no need to wait for a response from the destination peer anymore. 862 */ 863 void (*send_action_done)(void *ctx); 864 865 /** 866 * start_listen - Start Listen state 867 * @ctx: Callback context from cb_ctx 868 * @freq: Frequency of the listen channel in MHz 869 * @duration: Duration for the Listen state in milliseconds 870 * @probe_resp_ie: IE(s) to be added to Probe Response frames 871 * Returns: 0 on success, -1 on failure 872 * 873 * This Listen state may not start immediately since the driver may 874 * have other pending operations to complete first. Once the Listen 875 * state has started, p2p_listen_cb() must be called to notify the P2P 876 * module. Once the Listen state is stopped, p2p_listen_end() must be 877 * called to notify the P2P module that the driver is not in the Listen 878 * state anymore. 879 * 880 * If the send_probe_resp() is not used for generating the response, 881 * the IEs from probe_resp_ie need to be added to the end of the Probe 882 * Response frame body. If send_probe_resp() is used, the probe_resp_ie 883 * information can be ignored. 884 */ 885 int (*start_listen)(void *ctx, unsigned int freq, 886 unsigned int duration, 887 const struct wpabuf *probe_resp_ie); 888 /** 889 * stop_listen - Stop Listen state 890 * @ctx: Callback context from cb_ctx 891 * 892 * This callback can be used to stop a Listen state operation that was 893 * previously requested with start_listen(). 894 */ 895 void (*stop_listen)(void *ctx); 896 897 /** 898 * get_noa - Get current Notice of Absence attribute payload 899 * @ctx: Callback context from cb_ctx 900 * @interface_addr: P2P Interface Address of the GO 901 * @buf: Buffer for returning NoA 902 * @buf_len: Buffer length in octets 903 * Returns: Number of octets used in buf, 0 to indicate no NoA is being 904 * advertized, or -1 on failure 905 * 906 * This function is used to fetch the current Notice of Absence 907 * attribute value from GO. 908 */ 909 int (*get_noa)(void *ctx, const u8 *interface_addr, u8 *buf, 910 size_t buf_len); 911 912 /* Callbacks to notify events to upper layer management entity */ 913 914 /** 915 * dev_found - Notification of a found P2P Device 916 * @ctx: Callback context from cb_ctx 917 * @addr: Source address of the message triggering this notification 918 * @info: P2P peer information 919 * @new_device: Inform if the peer is newly found 920 * 921 * This callback is used to notify that a new P2P Device has been 922 * found. This may happen, e.g., during Search state based on scan 923 * results or during Listen state based on receive Probe Request and 924 * Group Owner Negotiation Request. 925 */ 926 void (*dev_found)(void *ctx, const u8 *addr, 927 const struct p2p_peer_info *info, 928 int new_device); 929 930 /** 931 * dev_lost - Notification of a lost P2P Device 932 * @ctx: Callback context from cb_ctx 933 * @dev_addr: P2P Device Address of the lost P2P Device 934 * 935 * This callback is used to notify that a P2P Device has been deleted. 936 */ 937 void (*dev_lost)(void *ctx, const u8 *dev_addr); 938 939 /** 940 * find_stopped - Notification of a p2p_find operation stopping 941 * @ctx: Callback context from cb_ctx 942 */ 943 void (*find_stopped)(void *ctx); 944 945 /** 946 * go_neg_req_rx - Notification of a receive GO Negotiation Request 947 * @ctx: Callback context from cb_ctx 948 * @src: Source address of the message triggering this notification 949 * @dev_passwd_id: WPS Device Password ID 950 * @go_intent: Peer's GO Intent 951 * 952 * This callback is used to notify that a P2P Device is requesting 953 * group owner negotiation with us, but we do not have all the 954 * necessary information to start GO Negotiation. This indicates that 955 * the local user has not authorized the connection yet by providing a 956 * PIN or PBC button press. This information can be provided with a 957 * call to p2p_connect(). 958 */ 959 void (*go_neg_req_rx)(void *ctx, const u8 *src, u16 dev_passwd_id, 960 u8 go_intent); 961 962 /** 963 * go_neg_completed - Notification of GO Negotiation results 964 * @ctx: Callback context from cb_ctx 965 * @res: GO Negotiation results 966 * 967 * This callback is used to notify that Group Owner Negotiation has 968 * been completed. Non-zero struct p2p_go_neg_results::status indicates 969 * failed negotiation. In case of success, this function is responsible 970 * for creating a new group interface (or using the existing interface 971 * depending on driver features), setting up the group interface in 972 * proper mode based on struct p2p_go_neg_results::role_go and 973 * initializing WPS provisioning either as a Registrar (if GO) or as an 974 * Enrollee. Successful WPS provisioning must be indicated by calling 975 * p2p_wps_success_cb(). The callee is responsible for timing out group 976 * formation if WPS provisioning cannot be completed successfully 977 * within 15 seconds. 978 */ 979 void (*go_neg_completed)(void *ctx, struct p2p_go_neg_results *res); 980 981 /** 982 * set_go_security_config - Set security configuration for P2P GO 983 * @ctx: Callback context from cb_ctx 984 * @res: GO Negotiation results 985 * 986 * This callback is used to set PMK/passphrase derived during PASN 987 * authentication with a P2P client. This will fetch an active P2P group 988 * owner instance and configure PMKSA in case of password based PASN, or 989 * configures the passphrase and derive PT in case of unauthenticated 990 * PASN. 991 */ 992 void (*set_go_security_config)(void *ctx, 993 struct p2p_go_neg_results *res); 994 995 /** 996 * sd_request - Callback on Service Discovery Request 997 * @ctx: Callback context from cb_ctx 998 * @freq: Frequency (in MHz) of the channel 999 * @sa: Source address of the request 1000 * @dialog_token: Dialog token 1001 * @update_indic: Service Update Indicator from the source of request 1002 * @tlvs: P2P Service Request TLV(s) 1003 * @tlvs_len: Length of tlvs buffer in octets 1004 * 1005 * This callback is used to indicate reception of a service discovery 1006 * request. Response to the query must be indicated by calling 1007 * p2p_sd_response() with the context information from the arguments to 1008 * this callback function. 1009 * 1010 * This callback handler can be set to %NULL to indicate that service 1011 * discovery is not supported. 1012 */ 1013 void (*sd_request)(void *ctx, int freq, const u8 *sa, u8 dialog_token, 1014 u16 update_indic, const u8 *tlvs, size_t tlvs_len); 1015 1016 /** 1017 * sd_response - Callback on Service Discovery Response 1018 * @ctx: Callback context from cb_ctx 1019 * @sa: Source address of the request 1020 * @update_indic: Service Update Indicator from the source of response 1021 * @tlvs: P2P Service Response TLV(s) 1022 * @tlvs_len: Length of tlvs buffer in octets 1023 * 1024 * This callback is used to indicate reception of a service discovery 1025 * response. This callback handler can be set to %NULL if no service 1026 * discovery requests are used. The information provided with this call 1027 * is replies to the queries scheduled with p2p_sd_request(). 1028 */ 1029 void (*sd_response)(void *ctx, const u8 *sa, u16 update_indic, 1030 const u8 *tlvs, size_t tlvs_len); 1031 1032 /** 1033 * prov_disc_req - Callback on Provisiong Discovery Request 1034 * @ctx: Callback context from cb_ctx 1035 * @peer: Source address of the request 1036 * @config_methods: Requested WPS Config Method 1037 * @dev_addr: P2P Device Address of the found P2P Device 1038 * @pri_dev_type: Primary Device Type 1039 * @dev_name: Device Name 1040 * @supp_config_methods: Supported configuration Methods 1041 * @dev_capab: Device Capabilities 1042 * @group_capab: Group Capabilities 1043 * @group_id: P2P Group ID (or %NULL if not included) 1044 * @group_id_len: Length of P2P Group ID 1045 * 1046 * This callback is used to indicate reception of a Provision Discovery 1047 * Request frame that the P2P module accepted. 1048 */ 1049 void (*prov_disc_req)(void *ctx, const u8 *peer, u16 config_methods, 1050 const u8 *dev_addr, const u8 *pri_dev_type, 1051 const char *dev_name, u16 supp_config_methods, 1052 u8 dev_capab, u8 group_capab, 1053 const u8 *group_id, size_t group_id_len); 1054 1055 /** 1056 * prov_disc_resp - Callback on Provisiong Discovery Response 1057 * @ctx: Callback context from cb_ctx 1058 * @peer: Source address of the response 1059 * @config_methods: Value from p2p_prov_disc_req() or 0 on failure 1060 * 1061 * This callback is used to indicate reception of a Provision Discovery 1062 * Response frame for a pending request scheduled with 1063 * p2p_prov_disc_req(). This callback handler can be set to %NULL if 1064 * provision discovery is not used. 1065 */ 1066 void (*prov_disc_resp)(void *ctx, const u8 *peer, u16 config_methods); 1067 1068 /** 1069 * prov_disc_fail - Callback on Provision Discovery failure 1070 * @ctx: Callback context from cb_ctx 1071 * @peer: Source address of the response 1072 * @status: Cause of failure, will not be %P2P_PROV_DISC_SUCCESS 1073 * @adv_id: If non-zero, then the adv_id of the PD Request 1074 * @adv_mac: P2P Device Address of the advertizer 1075 * @deferred_session_resp: Deferred session response sent by advertizer 1076 * 1077 * This callback is used to indicate either a failure or no response 1078 * to an earlier provision discovery request. 1079 * 1080 * This callback handler can be set to %NULL if provision discovery 1081 * is not used or failures do not need to be indicated. 1082 */ 1083 void (*prov_disc_fail)(void *ctx, const u8 *peer, 1084 enum p2p_prov_disc_status status, 1085 u32 adv_id, const u8 *adv_mac, 1086 const char *deferred_session_resp); 1087 1088 /** 1089 * invitation_process - Optional callback for processing Invitations 1090 * @ctx: Callback context from cb_ctx 1091 * @sa: Source address of the Invitation Request 1092 * @bssid: P2P Group BSSID from the request or %NULL if not included 1093 * @go_dev_addr: GO Device Address from P2P Group ID 1094 * @ssid: SSID from P2P Group ID 1095 * @ssid_len: Length of ssid buffer in octets 1096 * @go: Variable for returning whether the local end is GO in the group 1097 * @group_bssid: Buffer for returning P2P Group BSSID (if local end GO) 1098 * @force_freq: Variable for returning forced frequency for the group 1099 * @persistent_group: Whether this is an invitation to reinvoke a 1100 * persistent group (instead of invitation to join an active 1101 * group) 1102 * @channels: Available operating channels for the group 1103 * @dev_pw_id: Device Password ID for NFC static handover or -1 if not 1104 * used 1105 * @p2p2: Whether invitation request was wrapped in PASN authentication 1106 * received from a P2P2 device 1107 * @new_ssid: Pointer to hold new SSID 1108 * @new_ssid_len: Length of new SSID buffer in octets 1109 * Returns: Status code (P2P_SC_*) 1110 * 1111 * This optional callback can be used to implement persistent reconnect 1112 * by allowing automatic restarting of persistent groups without user 1113 * interaction. If this callback is not implemented (i.e., is %NULL), 1114 * the received Invitation Request frames are replied with 1115 * %P2P_SC_REQ_RECEIVED status and indicated to upper layer with the 1116 * invitation_result() callback. 1117 * 1118 * If the requested parameters are acceptable and the group is known, 1119 * %P2P_SC_SUCCESS may be returned. If the requested group is unknown, 1120 * %P2P_SC_FAIL_UNKNOWN_GROUP should be returned. %P2P_SC_REQ_RECEIVED 1121 * can be returned if there is not enough data to provide immediate 1122 * response, i.e., if some sort of user interaction is needed. The 1123 * invitation_received() callback will be called in that case 1124 * immediately after this call. 1125 */ 1126 u8 (*invitation_process)(void *ctx, const u8 *sa, const u8 *bssid, 1127 const u8 *go_dev_addr, const u8 *ssid, 1128 size_t ssid_len, int *go, u8 *group_bssid, 1129 int *force_freq, int persistent_group, 1130 const struct p2p_channels *channels, 1131 int dev_pw_id, bool p2p2, const u8 **new_ssid, 1132 size_t *new_ssid_len); 1133 1134 /** 1135 * invitation_received - Callback on Invitation Request RX 1136 * @ctx: Callback context from cb_ctx 1137 * @sa: Source address of the Invitation Request 1138 * @bssid: P2P Group BSSID or %NULL if not received 1139 * @ssid: SSID of the group 1140 * @ssid_len: Length of ssid in octets 1141 * @go_dev_addr: GO Device Address 1142 * @status: Response Status 1143 * @op_freq: Operational frequency for the group 1144 * 1145 * This callback is used to indicate sending of an Invitation Response 1146 * for a received Invitation Request. If status == 0 (success), the 1147 * upper layer code is responsible for starting the group. status == 1 1148 * indicates need to get user authorization for the group. Other status 1149 * values indicate that the invitation request was rejected. 1150 */ 1151 void (*invitation_received)(void *ctx, const u8 *sa, const u8 *bssid, 1152 const u8 *ssid, size_t ssid_len, 1153 const u8 *go_dev_addr, u8 status, 1154 int op_freq, const u8 *pmkid, const u8 *pmk, 1155 size_t pmk_len); 1156 1157 /** 1158 * invitation_result - Callback on Invitation result 1159 * @ctx: Callback context from cb_ctx 1160 * @status: Negotiation result (Status Code) 1161 * @new_ssid: New SSID received in invitation response 1162 * @new_ssid_len: Length of new SSID received 1163 * @bssid: P2P Group BSSID or %NULL if not received 1164 * @channels: Available operating channels for the group 1165 * @addr: Peer address 1166 * @freq: Frequency (in MHz) indicated during invitation or 0 1167 * @peer_oper_freq: Operating frequency (in MHz) advertized by the peer 1168 * during invitation or 0 1169 * @pmkid: PMKID used during invitation handshake 1170 * @pmk: The derived PMK 1171 * @pmk_len: PMK length in octets 1172 * @go_dev_addr: The P2P Device Address of the GO 1173 * 1174 * This callback is used to indicate result of an Invitation procedure 1175 * started with a call to p2p_invite(). The indicated status code is 1176 * the value received from the peer in Invitation Response with 0 1177 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a 1178 * local failure in transmitting the Invitation Request. 1179 */ 1180 void (*invitation_result)(void *ctx, int status, const u8 *new_ssid, 1181 size_t new_ssid_len, const u8 *bssid, 1182 const struct p2p_channels *channels, 1183 const u8 *addr, int freq, int peer_oper_freq, 1184 const u8 *pmkid, const u8 *pmk, 1185 size_t pmk_len, const u8 *go_dev_addr); 1186 1187 /** 1188 * go_connected - Check whether we are connected to a GO 1189 * @ctx: Callback context from cb_ctx 1190 * @dev_addr: P2P Device Address of a GO 1191 * Returns: 1 if we are connected as a P2P client to the specified GO 1192 * or 0 if not. 1193 */ 1194 int (*go_connected)(void *ctx, const u8 *dev_addr); 1195 1196 /** 1197 * presence_resp - Callback on Presence Response 1198 * @ctx: Callback context from cb_ctx 1199 * @src: Source address (GO's P2P Interface Address) 1200 * @status: Result of the request (P2P_SC_*) 1201 * @noa: Returned NoA value 1202 * @noa_len: Length of the NoA buffer in octets 1203 */ 1204 void (*presence_resp)(void *ctx, const u8 *src, u8 status, 1205 const u8 *noa, size_t noa_len); 1206 1207 /** 1208 * is_concurrent_session_active - Check whether concurrent session is 1209 * active on other virtual interfaces 1210 * @ctx: Callback context from cb_ctx 1211 * Returns: 1 if concurrent session is active on other virtual interface 1212 * or 0 if not. 1213 */ 1214 int (*is_concurrent_session_active)(void *ctx); 1215 1216 /** 1217 * is_p2p_in_progress - Check whether P2P operation is in progress 1218 * @ctx: Callback context from cb_ctx 1219 * Returns: 1 if P2P operation (e.g., group formation) is in progress 1220 * or 0 if not. 1221 */ 1222 int (*is_p2p_in_progress)(void *ctx); 1223 1224 /** 1225 * Determine if we have a persistent group we share with remote peer 1226 * and allocate interface for this group if needed 1227 * @ctx: Callback context from cb_ctx 1228 * @addr: Peer device address to search for 1229 * @ssid: Persistent group SSID or %NULL if any 1230 * @ssid_len: Length of @ssid 1231 * @go_dev_addr: Buffer for returning GO P2P Device Address 1232 * @ret_ssid: Buffer for returning group SSID 1233 * @ret_ssid_len: Buffer for returning length of @ssid 1234 * @intended_iface_addr: Buffer for returning intended iface address 1235 * Returns: 1 if a matching persistent group was found, 0 otherwise 1236 */ 1237 int (*get_persistent_group)(void *ctx, const u8 *addr, const u8 *ssid, 1238 size_t ssid_len, u8 *go_dev_addr, 1239 u8 *ret_ssid, size_t *ret_ssid_len, 1240 u8 *intended_iface_addr); 1241 1242 /** 1243 * Get information about a possible local GO role 1244 * @ctx: Callback context from cb_ctx 1245 * @intended_addr: Buffer for returning intended GO interface address 1246 * @ssid: Buffer for returning group SSID 1247 * @ssid_len: Buffer for returning length of @ssid 1248 * @group_iface: Buffer for returning whether a separate group interface 1249 * would be used 1250 * @freq: Variable for returning the current operating frequency of a 1251 * currently running P2P GO. 1252 * Returns: 1 if GO info found, 0 otherwise 1253 * 1254 * This is used to compose New Group settings (SSID, and intended 1255 * address) during P2PS provisioning if results of provisioning *might* 1256 * result in our being an autonomous GO. 1257 */ 1258 int (*get_go_info)(void *ctx, u8 *intended_addr, 1259 u8 *ssid, size_t *ssid_len, int *group_iface, 1260 unsigned int *freq); 1261 1262 /** 1263 * remove_stale_groups - Remove stale P2PS groups 1264 * 1265 * Because P2PS stages *potential* GOs, and remote devices can remove 1266 * credentials unilaterally, we need to make sure we don't let stale 1267 * unusable groups build up. 1268 */ 1269 int (*remove_stale_groups)(void *ctx, const u8 *peer, const u8 *go, 1270 const u8 *ssid, size_t ssid_len); 1271 1272 /** 1273 * p2ps_prov_complete - P2PS provisioning complete 1274 * 1275 * When P2PS provisioning completes (successfully or not) we must 1276 * transmit all of the results to the upper layers. 1277 */ 1278 void (*p2ps_prov_complete)(void *ctx, enum p2p_status_code status, 1279 const u8 *dev, 1280 const u8 *adv_mac, const u8 *ses_mac, 1281 const u8 *grp_mac, u32 adv_id, u32 ses_id, 1282 u8 conncap, int passwd_id, 1283 const u8 *persist_ssid, 1284 size_t persist_ssid_size, int response_done, 1285 int prov_start, const char *session_info, 1286 const u8 *feat_cap, size_t feat_cap_len, 1287 unsigned int freq, const u8 *group_ssid, 1288 size_t group_ssid_len); 1289 1290 /** 1291 * prov_disc_resp_cb - Callback for indicating completion of PD Response 1292 * @ctx: Callback context from cb_ctx 1293 * Returns: 1 if operation was started, 0 otherwise 1294 * 1295 * This callback can be used to perform any pending actions after 1296 * provisioning. It is mainly used for P2PS pending group creation. 1297 */ 1298 int (*prov_disc_resp_cb)(void *ctx); 1299 1300 /** 1301 * p2ps_group_capability - Determine group capability 1302 * @ctx: Callback context from cb_ctx 1303 * @incoming: Peer requested roles, expressed with P2PS_SETUP_* bitmap. 1304 * @role: Local roles, expressed with P2PS_SETUP_* bitmap. 1305 * @force_freq: Variable for returning forced frequency for the group. 1306 * @pref_freq: Variable for returning preferred frequency for the group. 1307 * Returns: P2PS_SETUP_* bitmap of group capability result. 1308 * 1309 * This function can be used to determine group capability and 1310 * frequencies based on information from P2PS PD exchange and the 1311 * current state of ongoing groups and driver capabilities. 1312 */ 1313 u8 (*p2ps_group_capability)(void *ctx, u8 incoming, u8 role, 1314 unsigned int *force_freq, 1315 unsigned int *pref_freq); 1316 1317 /** 1318 * get_pref_freq_list - Get preferred frequency list for an interface 1319 * @ctx: Callback context from cb_ctx 1320 * @go: Whether the use if for GO role 1321 * @len: Length of freq_list in entries (both IN and OUT) 1322 * @freq_list: Buffer for returning the preferred frequencies (MHz) 1323 * Returns: 0 on success, -1 on failure 1324 * 1325 * This function can be used to query the preferred frequency list from 1326 * the driver specific to a particular interface type. 1327 */ 1328 int (*get_pref_freq_list)(void *ctx, int go, 1329 unsigned int *len, 1330 struct weighted_pcl *freq_list); 1331 1332 /** 1333 * register_bootstrap_comeback - Register timeout to initiate bootstrap 1334 * comeback request 1335 * @ctx: Callback context from cb_ctx 1336 * @addr: P2P Device Address to which comeback request is to be sent 1337 * @comeback_after: Time in TUs after which comeback request is sent 1338 * 1339 * This function can be used to send comeback request after given 1340 * timeout. 1341 */ 1342 void (*register_bootstrap_comeback)(void *ctx, const u8 *addr, 1343 u16 comeback_after); 1344 1345 /** 1346 * bootstrap_req_rx - Indicate bootstrap request from a P2P peer 1347 * @ctx: Callback context from cb_ctx 1348 * @addr: P2P device address from which bootstrap request was received 1349 * @bootstrap_method: Bootstrapping method request by the peer device 1350 * 1351 * This function can be used to notify that bootstrap request is 1352 * received from a P2P peer. 1353 */ 1354 void (*bootstrap_req_rx)(void *ctx, const u8 *addr, 1355 u16 bootstrap_method); 1356 1357 /** 1358 * bootstrap_rsp_rx - Indicate bootstrapping response from a P2P peer 1359 * @ctx: Callback context from cb_ctx 1360 * @addr: P2P device address with which bootstrapping is completed 1361 * @status: P2P Status Code of bootstrapping handshake 1362 * @freq: Frequency in which bootstrapping is done 1363 * @bootstrap_method: Bootstrapping method by the peer device 1364 * 1365 * This function can be used to notify the status of bootstrapping 1366 * handshake. 1367 */ 1368 void (*bootstrap_rsp_rx)(void *ctx, const u8 *addr, 1369 enum p2p_status_code status, int freq, 1370 u16 bootstrap_method); 1371 1372 /** 1373 * validate_dira - Indicate reception of DIRA to be validated against a 1374 * list of available device identity keys 1375 * @ctx: Callback context from cb_ctx 1376 * @peer_addr: P2P Device address of the peer 1377 * @dira_nonce: DIRA Nonce 1378 * @dira_tag: DIRA Tag 1379 * Returns: Identity block ID on success, 0 on failure 1380 * 1381 * This function can be used to validate DIRA. 1382 */ 1383 int (*validate_dira)(void *ctx, const u8 *peer_addr, 1384 const u8 *dira_nonce, const u8 *dira_tag); 1385 1386 /** 1387 * set_pmksa - Configure PMK of a paired/persistent peer from 1388 * configuration 1389 * @ctx: Callback context from cb_ctx 1390 * @peer_addr: P2P Device address of the peer 1391 * @dik_id: Identity block ID 1392 * Returns: 0 on success 1393 * 1394 * It is expected to call p2p_pasn_pmksa_set_pmk() to set the PMK/PMKID 1395 * for given dik_id. 1396 */ 1397 int (*set_pmksa)(void *ctx, const u8 *peer_addr, int dik_id); 1398 1399 /** 1400 * pasn_send_mgmt - Function handler to transmit a Management frame 1401 * @ctx: Callback context from cb_ctx 1402 * @data: Frame to transmit 1403 * @data_len: Length of frame to transmit 1404 * @noack: No ack flag 1405 * @freq: Frequency in MHz for the channel on which to transmit 1406 * @wait: How many milliseconds to wait for a response frame 1407 * Returns: 0 on success, -1 on failure 1408 */ 1409 int (*pasn_send_mgmt)(void *ctx, const u8 *data, size_t data_len, 1410 int noack, unsigned int freq, unsigned int wait); 1411 1412 /** 1413 * prepare_data_element - Function handler to update protocol specific 1414 * elements in PASN authentication frames 1415 * @ctx: Callback context from cb_ctx 1416 * @peer_addr: Peer MAC address 1417 * Returns: 0 on success, -1 on failure 1418 */ 1419 int (*prepare_data_element)(void *ctx, const u8 *peer_addr); 1420 1421 /** 1422 * parse_data_element - Function handler to parse P2P data element 1423 * @ctx: Callback context from cb_ctx 1424 * @data: Data to be parsed 1425 * @len: Length of data 1426 * Returns: 0 on success, -1 on failure 1427 */ 1428 int (*parse_data_element)(void *ctx, const u8 *data, size_t len); 1429 1430 /** 1431 * pasn_validate_pmkid - Function handler to validate RSN PMKID 1432 * @ctx: Callback context from cb_ctx 1433 * @addr: Peer MAC address 1434 * @pmkid: PMKID in the PASN frame 1435 * Returns: 0 on success, -1 on failure 1436 */ 1437 int (*pasn_validate_pmkid)(void *ctx, const u8 *addr, const u8 *pmkid); 1438 1439 /** 1440 * 1441 * is_p2p_dfs_chan - DFS channel check 1442 * 1443 * To check if a channel is a DFS channel. 1444 */ 1445 bool (*is_p2p_dfs_chan)(void *ctx, int freq, u8 op_class, u8 chan); 1446 }; 1447 1448 1449 /* P2P module initialization/deinitialization */ 1450 1451 /** 1452 * p2p_init - Initialize P2P module 1453 * @cfg: P2P module configuration 1454 * Returns: Pointer to private data or %NULL on failure 1455 * 1456 * This function is used to initialize global P2P module context (one per 1457 * device). The P2P module will keep a copy of the configuration data, so the 1458 * caller does not need to maintain this structure. However, the callback 1459 * functions and the context parameters to them must be kept available until 1460 * the P2P module is deinitialized with p2p_deinit(). 1461 */ 1462 struct p2p_data * p2p_init(const struct p2p_config *cfg); 1463 1464 /** 1465 * p2p_deinit - Deinitialize P2P module 1466 * @p2p: P2P module context from p2p_init() 1467 */ 1468 void p2p_deinit(struct p2p_data *p2p); 1469 1470 /** 1471 * p2p_flush - Flush P2P module state 1472 * @p2p: P2P module context from p2p_init() 1473 * 1474 * This command removes the P2P module state like peer device entries. 1475 */ 1476 void p2p_flush(struct p2p_data *p2p); 1477 1478 /** 1479 * p2p_unauthorize - Unauthorize the specified peer device 1480 * @p2p: P2P module context from p2p_init() 1481 * @addr: P2P peer entry to be unauthorized 1482 * Returns: 0 on success, -1 on failure 1483 * 1484 * This command removes any connection authorization from the specified P2P 1485 * peer device address. This can be used, e.g., to cancel effect of a previous 1486 * p2p_authorize() or p2p_connect() call that has not yet resulted in completed 1487 * GO Negotiation. 1488 */ 1489 int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr); 1490 1491 /** 1492 * p2p_set_dev_name - Set device name 1493 * @p2p: P2P module context from p2p_init() 1494 * Returns: 0 on success, -1 on failure 1495 * 1496 * This function can be used to update the P2P module configuration with 1497 * information that was not available at the time of the p2p_init() call. 1498 */ 1499 int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name); 1500 1501 int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer); 1502 int p2p_set_model_name(struct p2p_data *p2p, const char *model_name); 1503 int p2p_set_model_number(struct p2p_data *p2p, const char *model_number); 1504 int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number); 1505 1506 void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods); 1507 void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid); 1508 1509 /** 1510 * p2p_set_pri_dev_type - Set primary device type 1511 * @p2p: P2P module context from p2p_init() 1512 * Returns: 0 on success, -1 on failure 1513 * 1514 * This function can be used to update the P2P module configuration with 1515 * information that was not available at the time of the p2p_init() call. 1516 */ 1517 int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type); 1518 1519 /** 1520 * p2p_set_sec_dev_types - Set secondary device types 1521 * @p2p: P2P module context from p2p_init() 1522 * Returns: 0 on success, -1 on failure 1523 * 1524 * This function can be used to update the P2P module configuration with 1525 * information that was not available at the time of the p2p_init() call. 1526 */ 1527 int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8], 1528 size_t num_dev_types); 1529 1530 int p2p_set_country(struct p2p_data *p2p, const char *country); 1531 1532 1533 /* Commands from upper layer management entity */ 1534 1535 enum p2p_discovery_type { 1536 P2P_FIND_START_WITH_FULL, 1537 P2P_FIND_ONLY_SOCIAL, 1538 P2P_FIND_PROGRESSIVE 1539 }; 1540 1541 /** 1542 * p2p_find - Start P2P Find (Device Discovery) 1543 * @p2p: P2P module context from p2p_init() 1544 * @timeout: Timeout for find operation in seconds or 0 for no timeout 1545 * @type: Device Discovery type 1546 * @num_req_dev_types: Number of requested device types 1547 * @req_dev_types: Requested device types array, must be an array 1548 * containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no 1549 * requested device types. 1550 * @dev_id: Device ID to search for or %NULL to find all devices 1551 * @search_delay: Extra delay in milliseconds between search iterations 1552 * @seek_count: Number of ASP Service Strings in the seek_string array 1553 * @seek_string: ASP Service Strings to query for in Probe Requests 1554 * @freq: Requested first scan frequency (in MHz) to modify type == 1555 * P2P_FIND_START_WITH_FULL behavior. 0 = Use normal full scan. 1556 * If p2p_find is already in progress, this parameter is ignored and full 1557 * scan will be executed. 1558 * @include_6ghz: Include 6 GHz channels in P2P find 1559 * Returns: 0 on success, -1 on failure 1560 */ 1561 int p2p_find(struct p2p_data *p2p, unsigned int timeout, 1562 enum p2p_discovery_type type, 1563 unsigned int num_req_dev_types, const u8 *req_dev_types, 1564 const u8 *dev_id, unsigned int search_delay, 1565 u8 seek_count, const char **seek_string, int freq, 1566 bool include_6ghz); 1567 1568 /** 1569 * p2p_notify_scan_trigger_status - Indicate scan trigger status 1570 * @p2p: P2P module context from p2p_init() 1571 * @status: 0 on success, -1 on failure 1572 */ 1573 void p2p_notify_scan_trigger_status(struct p2p_data *p2p, int status); 1574 1575 /** 1576 * p2p_stop_find - Stop P2P Find (Device Discovery) 1577 * @p2p: P2P module context from p2p_init() 1578 */ 1579 void p2p_stop_find(struct p2p_data *p2p); 1580 1581 /** 1582 * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq 1583 * @p2p: P2P module context from p2p_init() 1584 * @freq: Frequency in MHz for next operation 1585 * 1586 * This is like p2p_stop_find(), but Listen state is not stopped if we are 1587 * already on the same frequency. 1588 */ 1589 void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq); 1590 1591 /** 1592 * p2p_listen - Start P2P Listen state for specified duration 1593 * @p2p: P2P module context from p2p_init() 1594 * @timeout: Listen state duration in milliseconds 1595 * Returns: 0 on success, -1 on failure 1596 * 1597 * This function can be used to request the P2P module to keep the device 1598 * discoverable on the listen channel for an extended set of time. At least in 1599 * its current form, this is mainly used for testing purposes and may not be of 1600 * much use for normal P2P operations. 1601 */ 1602 int p2p_listen(struct p2p_data *p2p, unsigned int timeout); 1603 1604 /** 1605 * p2p_stop_listen - Stop P2P Listen 1606 * @p2p: P2P module context from p2p_init() 1607 */ 1608 void p2p_stop_listen(struct p2p_data *p2p); 1609 1610 /** 1611 * p2p_connect - Start P2P group formation (GO negotiation) 1612 * @p2p: P2P module context from p2p_init() 1613 * @peer_addr: MAC address of the peer P2P client 1614 * @wps_method: WPS method to be used in provisioning 1615 * @go_intent: Local GO intent value (1..15) 1616 * @own_interface_addr: Intended interface address to use with the group 1617 * @force_freq: The only allowed channel frequency in MHz or 0 1618 * @persistent_group: Whether to create a persistent group (0 = no, 1 = 1619 * persistent group without persistent reconnect, 2 = persistent group with 1620 * persistent reconnect) 1621 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate 1622 * a new SSID 1623 * @force_ssid_len: Length of $force_ssid buffer 1624 * @pd_before_go_neg: Whether to send Provision Discovery prior to GO 1625 * Negotiation as an interoperability workaround when initiating group 1626 * formation 1627 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 1628 * force_freq == 0) 1629 * @oob_pw_id: OOB password identifier 1630 * @p2p2: Device supports P2P2 features 1631 * @bootstrap: Bootstrapping method requested for P2P2 provision discovery 1632 * @password: P2P2 pairing password or %NULL for opportunistic method 1633 * Returns: 0 on success, -1 on failure 1634 */ 1635 int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr, 1636 enum p2p_wps_method wps_method, 1637 int go_intent, const u8 *own_interface_addr, 1638 unsigned int force_freq, int persistent_group, 1639 const u8 *force_ssid, size_t force_ssid_len, 1640 int pd_before_go_neg, unsigned int pref_freq, u16 oob_pw_id, 1641 bool p2p2, u16 bootstrap, const char *password); 1642 1643 /** 1644 * p2p_authorize - Authorize P2P group formation (GO negotiation) 1645 * @p2p: P2P module context from p2p_init() 1646 * @peer_addr: MAC address of the peer P2P client 1647 * @wps_method: WPS method to be used in provisioning 1648 * @go_intent: Local GO intent value (1..15) 1649 * @own_interface_addr: Intended interface address to use with the group 1650 * @force_freq: The only allowed channel frequency in MHz or 0 1651 * @persistent_group: Whether to create a persistent group (0 = no, 1 = 1652 * persistent group without persistent reconnect, 2 = persistent group with 1653 * persistent reconnect) 1654 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate 1655 * a new SSID 1656 * @force_ssid_len: Length of $force_ssid buffer 1657 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 1658 * force_freq == 0) 1659 * @oob_pw_id: OOB password identifier 1660 * @bootstrap: Bootstrapping method requested for P2P2 provision discovery 1661 * @password: P2P2 pairing password or %NULL for opportunistic method 1662 * Returns: 0 on success, -1 on failure 1663 * 1664 * This is like p2p_connect(), but the actual group negotiation is not 1665 * initiated automatically, i.e., the other end is expected to do that. 1666 */ 1667 int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr, 1668 enum p2p_wps_method wps_method, 1669 int go_intent, const u8 *own_interface_addr, 1670 unsigned int force_freq, int persistent_group, 1671 const u8 *force_ssid, size_t force_ssid_len, 1672 unsigned int pref_freq, u16 oob_pw_id, u16 bootstrap, 1673 const char *password); 1674 1675 /** 1676 * p2p_reject - Reject peer device (explicitly block connection attempts) 1677 * @p2p: P2P module context from p2p_init() 1678 * @peer_addr: MAC address of the peer P2P client 1679 * Returns: 0 on success, -1 on failure 1680 */ 1681 int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr); 1682 1683 /** 1684 * p2p_set_req_bootstrap_method - Send Provision Discovery Request to initiate 1685 * bootstrapping 1686 * @p2p: P2P module context from p2p_init() 1687 * @peer_addr: MAC address of the peer P2P client 1688 * @boostrap: Bootstrapping method 1689 * Returns: 0 on success, -1 on failure 1690 */ 1691 int p2p_set_req_bootstrap_method(struct p2p_data *p2p, const u8 *peer_addr, 1692 u16 bootstrap); 1693 1694 /** 1695 * p2p_prov_disc_req - Send Provision Discovery Request 1696 * @p2p: P2P module context from p2p_init() 1697 * @peer_addr: MAC address of the peer P2P client 1698 * @p2ps_prov: Provisioning info for P2PS 1699 * @config_methods: WPS Config Methods value (only one bit set) 1700 * @join: Whether this is used by a client joining an active group 1701 * @force_freq: Forced TX frequency for the frame (mainly for the join case) 1702 * @user_initiated_pd: Flag to indicate if initiated by user or not 1703 * Returns: 0 on success, -1 on failure 1704 * 1705 * This function can be used to request a discovered P2P peer to display a PIN 1706 * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us 1707 * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame 1708 * is transmitted once immediately and if no response is received, the frame 1709 * will be sent again whenever the target device is discovered during device 1710 * dsicovery (start with a p2p_find() call). Response from the peer is 1711 * indicated with the p2p_config::prov_disc_resp() callback. 1712 */ 1713 int p2p_prov_disc_req(struct p2p_data *p2p, const u8 *peer_addr, 1714 struct p2ps_provision *p2ps_prov, u16 config_methods, 1715 int join, int force_freq, 1716 int user_initiated_pd); 1717 1718 /** 1719 * p2p_sd_request - Schedule a service discovery query 1720 * @p2p: P2P module context from p2p_init() 1721 * @dst: Destination peer or %NULL to apply for all peers 1722 * @tlvs: P2P Service Query TLV(s) 1723 * Returns: Reference to the query or %NULL on failure 1724 * 1725 * Response to the query is indicated with the p2p_config::sd_response() 1726 * callback. 1727 */ 1728 void * p2p_sd_request(struct p2p_data *p2p, const u8 *dst, 1729 const struct wpabuf *tlvs); 1730 1731 #ifdef CONFIG_WIFI_DISPLAY 1732 void * p2p_sd_request_wfd(struct p2p_data *p2p, const u8 *dst, 1733 const struct wpabuf *tlvs); 1734 #endif /* CONFIG_WIFI_DISPLAY */ 1735 1736 /** 1737 * p2p_sd_cancel_request - Cancel a pending service discovery query 1738 * @p2p: P2P module context from p2p_init() 1739 * @req: Query reference from p2p_sd_request() 1740 * Returns: 0 if request for cancelled; -1 if not found 1741 */ 1742 int p2p_sd_cancel_request(struct p2p_data *p2p, void *req); 1743 1744 /** 1745 * p2p_sd_response - Send response to a service discovery query 1746 * @p2p: P2P module context from p2p_init() 1747 * @freq: Frequency from p2p_config::sd_request() callback 1748 * @dst: Destination address from p2p_config::sd_request() callback 1749 * @dialog_token: Dialog token from p2p_config::sd_request() callback 1750 * @resp_tlvs: P2P Service Response TLV(s) 1751 * 1752 * This function is called as a response to the request indicated with 1753 * p2p_config::sd_request() callback. 1754 */ 1755 void p2p_sd_response(struct p2p_data *p2p, int freq, const u8 *dst, 1756 u8 dialog_token, const struct wpabuf *resp_tlvs); 1757 1758 /** 1759 * p2p_sd_service_update - Indicate a change in local services 1760 * @p2p: P2P module context from p2p_init() 1761 * 1762 * This function needs to be called whenever there is a change in availability 1763 * of the local services. This will increment the Service Update Indicator 1764 * value which will be used in SD Request and Response frames. 1765 */ 1766 void p2p_sd_service_update(struct p2p_data *p2p); 1767 1768 1769 enum p2p_invite_role { 1770 P2P_INVITE_ROLE_GO, 1771 P2P_INVITE_ROLE_ACTIVE_GO, 1772 P2P_INVITE_ROLE_CLIENT 1773 }; 1774 1775 /** 1776 * p2p_invite - Invite a P2P Device into a group 1777 * @p2p: P2P module context from p2p_init() 1778 * @peer: Device Address of the peer P2P Device 1779 * @role: Local role in the group 1780 * @bssid: Group BSSID or %NULL if not known 1781 * @ssid: Group SSID 1782 * @ssid_len: Length of ssid in octets 1783 * @force_freq: The only allowed channel frequency in MHz or 0 1784 * @go_dev_addr: Forced GO Device Address or %NULL if none 1785 * @persistent_group: Whether this is to reinvoke a persistent group 1786 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 1787 * force_freq == 0) 1788 * @dev_pw_id: Device Password ID from OOB Device Password (NFC) static handover 1789 * case or -1 if not used 1790 * @p2p2: Operating in P2P2 mode 1791 * Returns: 0 on success, -1 on failure 1792 */ 1793 int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role, 1794 const u8 *bssid, const u8 *ssid, size_t ssid_len, 1795 unsigned int force_freq, const u8 *go_dev_addr, 1796 int persistent_group, unsigned int pref_freq, int dev_pw_id, 1797 bool p2p2); 1798 1799 /** 1800 * p2p_presence_req - Request GO presence 1801 * @p2p: P2P module context from p2p_init() 1802 * @go_interface_addr: GO P2P Interface Address 1803 * @own_interface_addr: Own P2P Interface Address for this group 1804 * @freq: Group operating frequence (in MHz) 1805 * @duration1: Preferred presence duration in microseconds 1806 * @interval1: Preferred presence interval in microseconds 1807 * @duration2: Acceptable presence duration in microseconds 1808 * @interval2: Acceptable presence interval in microseconds 1809 * Returns: 0 on success, -1 on failure 1810 * 1811 * If both duration and interval values are zero, the parameter pair is not 1812 * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0). 1813 */ 1814 int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr, 1815 const u8 *own_interface_addr, unsigned int freq, 1816 u32 duration1, u32 interval1, u32 duration2, 1817 u32 interval2); 1818 1819 /** 1820 * p2p_ext_listen - Set Extended Listen Timing 1821 * @p2p: P2P module context from p2p_init() 1822 * @freq: Group operating frequence (in MHz) 1823 * @period: Availability period in milliseconds (1-65535; 0 to disable) 1824 * @interval: Availability interval in milliseconds (1-65535; 0 to disable) 1825 * Returns: 0 on success, -1 on failure 1826 * 1827 * This function can be used to enable or disable (period = interval = 0) 1828 * Extended Listen Timing. When enabled, the P2P Device will become 1829 * discoverable (go into Listen State) every @interval milliseconds for at 1830 * least @period milliseconds. 1831 */ 1832 int p2p_ext_listen(struct p2p_data *p2p, unsigned int period, 1833 unsigned int interval); 1834 1835 /* Event notifications from upper layer management operations */ 1836 1837 /** 1838 * p2p_wps_success_cb - Report successfully completed WPS provisioning 1839 * @p2p: P2P module context from p2p_init() 1840 * @mac_addr: Peer address 1841 * 1842 * This function is used to report successfully completed WPS provisioning 1843 * during group formation in both GO/Registrar and client/Enrollee roles. 1844 */ 1845 void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr); 1846 1847 /** 1848 * p2p_group_formation_failed - Report failed WPS provisioning 1849 * @p2p: P2P module context from p2p_init() 1850 * 1851 * This function is used to report failed group formation. This can happen 1852 * either due to failed WPS provisioning or due to 15 second timeout during 1853 * the provisioning phase. 1854 */ 1855 void p2p_group_formation_failed(struct p2p_data *p2p); 1856 1857 /** 1858 * p2p_get_provisioning_info - Get any stored provisioning info 1859 * @p2p: P2P module context from p2p_init() 1860 * @addr: Peer P2P Device Address 1861 * Returns: WPS provisioning information (WPS config method) or 0 if no 1862 * information is available 1863 * 1864 * This function is used to retrieve stored WPS provisioning info for the given 1865 * peer. 1866 */ 1867 u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr); 1868 1869 /** 1870 * p2p_clear_provisioning_info - Clear any stored provisioning info 1871 * @p2p: P2P module context from p2p_init() 1872 * @iface_addr: Peer P2P Device Address 1873 * 1874 * This function is used to clear stored WPS provisioning info for the given 1875 * peer. 1876 */ 1877 void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr); 1878 1879 1880 /* Event notifications from lower layer driver operations */ 1881 1882 /** 1883 * enum p2p_probe_req_status 1884 * 1885 * @P2P_PREQ_MALFORMED: frame was not well-formed 1886 * @P2P_PREQ_NOT_LISTEN: device isn't in listen state, frame ignored 1887 * @P2P_PREQ_NOT_P2P: frame was not a P2P probe request 1888 * @P2P_PREQ_P2P_NOT_PROCESSED: frame was P2P but wasn't processed 1889 * @P2P_PREQ_P2P_PROCESSED: frame has been processed by P2P 1890 */ 1891 enum p2p_probe_req_status { 1892 P2P_PREQ_MALFORMED, 1893 P2P_PREQ_NOT_LISTEN, 1894 P2P_PREQ_NOT_P2P, 1895 P2P_PREQ_NOT_PROCESSED, 1896 P2P_PREQ_PROCESSED 1897 }; 1898 1899 /** 1900 * p2p_probe_req_rx - Report reception of a Probe Request frame 1901 * @p2p: P2P module context from p2p_init() 1902 * @addr: Source MAC address 1903 * @dst: Destination MAC address if available or %NULL 1904 * @bssid: BSSID if available or %NULL 1905 * @ie: Information elements from the Probe Request frame body 1906 * @ie_len: Length of ie buffer in octets 1907 * @rx_freq: Probe Request frame RX frequency 1908 * @p2p_lo_started: Whether P2P Listen Offload is started 1909 * Returns: value indicating the type and status of the probe request 1910 */ 1911 enum p2p_probe_req_status 1912 p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst, 1913 const u8 *bssid, const u8 *ie, size_t ie_len, 1914 unsigned int rx_freq, int p2p_lo_started); 1915 1916 /** 1917 * p2p_rx_action - Report received Action frame 1918 * @p2p: P2P module context from p2p_init() 1919 * @da: Destination address of the received Action frame 1920 * @sa: Source address of the received Action frame 1921 * @bssid: Address 3 of the received Action frame 1922 * @category: Category of the received Action frame 1923 * @data: Action frame body after the Category field 1924 * @len: Length of the data buffer in octets 1925 * @freq: Frequency (in MHz) on which the frame was received 1926 */ 1927 void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa, 1928 const u8 *bssid, u8 category, 1929 const u8 *data, size_t len, int freq); 1930 1931 /** 1932 * p2p_scan_res_handler - Indicate a P2P scan results 1933 * @p2p: P2P module context from p2p_init() 1934 * @bssid: BSSID of the scan result 1935 * @freq: Frequency of the channel on which the device was found in MHz 1936 * @rx_time: Time when the result was received 1937 * @level: Signal level (signal strength of the received Beacon/Probe Response 1938 * frame) 1939 * @ies: Pointer to IEs from the scan result 1940 * @ies_len: Length of the ies buffer 1941 * Returns: 0 to continue or 1 to stop scan result indication 1942 * 1943 * This function is called to indicate a scan result entry with P2P IE from a 1944 * scan requested with struct p2p_config::p2p_scan(). This can be called during 1945 * the actual scan process (i.e., whenever a new device is found) or as a 1946 * sequence of calls after the full scan has been completed. The former option 1947 * can result in optimized operations, but may not be supported by all 1948 * driver/firmware designs. The ies buffer need to include at least the P2P IE, 1949 * but it is recommended to include all IEs received from the device. The 1950 * caller does not need to check that the IEs contain a P2P IE before calling 1951 * this function since frames will be filtered internally if needed. 1952 * 1953 * This function will return 1 if it wants to stop scan result iteration (and 1954 * scan in general if it is still in progress). This is used to allow faster 1955 * start of a pending operation, e.g., to start a pending GO negotiation. 1956 */ 1957 int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq, 1958 struct os_reltime *rx_time, int level, const u8 *ies, 1959 size_t ies_len); 1960 1961 /** 1962 * p2p_scan_res_handled - Indicate end of scan results 1963 * @p2p: P2P module context from p2p_init() 1964 * @delay: Search delay for next scan in ms 1965 * 1966 * This function is called to indicate that all P2P scan results from a scan 1967 * have been reported with zero or more calls to p2p_scan_res_handler(). This 1968 * function must be called as a response to successful 1969 * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler() 1970 * calls stopped iteration. 1971 */ 1972 void p2p_scan_res_handled(struct p2p_data *p2p, unsigned int delay); 1973 1974 enum p2p_send_action_result { 1975 P2P_SEND_ACTION_SUCCESS /* Frame was send and acknowledged */, 1976 P2P_SEND_ACTION_NO_ACK /* Frame was sent, but not acknowledged */, 1977 P2P_SEND_ACTION_FAILED /* Frame was not sent due to a failure */ 1978 }; 1979 1980 /** 1981 * p2p_send_action_cb - Notify TX status of an Action frame 1982 * @p2p: P2P module context from p2p_init() 1983 * @freq: Channel frequency in MHz 1984 * @dst: Destination MAC address (Address 1) 1985 * @src: Source MAC address (Address 2) 1986 * @bssid: BSSID (Address 3) 1987 * @result: Result of the transmission attempt 1988 * 1989 * This function is used to indicate the result of an Action frame transmission 1990 * that was requested with struct p2p_config::send_action() callback. 1991 */ 1992 void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst, 1993 const u8 *src, const u8 *bssid, 1994 enum p2p_send_action_result result); 1995 1996 /** 1997 * p2p_listen_cb - Indicate the start of a requested Listen state 1998 * @p2p: P2P module context from p2p_init() 1999 * @freq: Listen channel frequency in MHz 2000 * @duration: Duration for the Listen state in milliseconds 2001 * 2002 * This function is used to indicate that a Listen state requested with 2003 * struct p2p_config::start_listen() callback has started. 2004 */ 2005 void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq, 2006 unsigned int duration); 2007 2008 /** 2009 * p2p_listen_end - Indicate the end of a requested Listen state 2010 * @p2p: P2P module context from p2p_init() 2011 * @freq: Listen channel frequency in MHz 2012 * Returns: 0 if no operations were started, 1 if an operation was started 2013 * 2014 * This function is used to indicate that a Listen state requested with 2015 * struct p2p_config::start_listen() callback has ended. 2016 */ 2017 int p2p_listen_end(struct p2p_data *p2p, unsigned int freq); 2018 2019 void p2p_listen_failed(struct p2p_data *p2p, unsigned int freq); 2020 2021 void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code, 2022 const u8 *ie, size_t ie_len); 2023 2024 void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code, 2025 const u8 *ie, size_t ie_len); 2026 2027 2028 /* Per-group P2P state for GO */ 2029 2030 struct p2p_group; 2031 2032 /** 2033 * struct p2p_group_config - P2P group configuration 2034 * 2035 * This configuration is provided to the P2P module during initialization of 2036 * the per-group information with p2p_group_init(). 2037 */ 2038 struct p2p_group_config { 2039 /** 2040 * p2p2 - Whether the group was formed using P2P2 2041 */ 2042 bool p2p2; 2043 2044 /** 2045 * persistent_group - Whether the group is persistent 2046 * 0 = not a persistent group 2047 * 1 = persistent group without persistent reconnect 2048 * 2 = persistent group with persistent reconnect 2049 */ 2050 int persistent_group; 2051 2052 /** 2053 * interface_addr - P2P Interface Address of the group 2054 */ 2055 u8 interface_addr[ETH_ALEN]; 2056 2057 /** 2058 * max_clients - Maximum number of clients in the group 2059 */ 2060 unsigned int max_clients; 2061 2062 /** 2063 * ssid - Group SSID 2064 */ 2065 u8 ssid[SSID_MAX_LEN]; 2066 2067 /** 2068 * ssid_len - Length of SSID 2069 */ 2070 size_t ssid_len; 2071 2072 /** 2073 * freq - Operating channel of the group 2074 */ 2075 int freq; 2076 2077 /** 2078 * ip_addr_alloc - Whether IP address allocation within 4-way handshake 2079 * is supported 2080 */ 2081 int ip_addr_alloc; 2082 2083 /** 2084 * cb_ctx - Context to use with callback functions 2085 */ 2086 void *cb_ctx; 2087 2088 /** 2089 * ie_update - Notification of IE update 2090 * @ctx: Callback context from cb_ctx 2091 * @beacon_ies: P2P IE for Beacon frames or %NULL if no change 2092 * @proberesp_ies: P2P Ie for Probe Response frames 2093 * 2094 * P2P module uses this callback function to notify whenever the P2P IE 2095 * in Beacon or Probe Response frames should be updated based on group 2096 * events. 2097 * 2098 * The callee is responsible for freeing the returned buffer(s) with 2099 * wpabuf_free(). 2100 */ 2101 void (*ie_update)(void *ctx, struct wpabuf *beacon_ies, 2102 struct wpabuf *proberesp_ies); 2103 2104 /** 2105 * idle_update - Notification of changes in group idle state 2106 * @ctx: Callback context from cb_ctx 2107 * @idle: Whether the group is idle (no associated stations) 2108 */ 2109 void (*idle_update)(void *ctx, int idle); 2110 }; 2111 2112 /** 2113 * p2p_group_init - Initialize P2P group 2114 * @p2p: P2P module context from p2p_init() 2115 * @config: P2P group configuration (will be freed by p2p_group_deinit()) 2116 * Returns: Pointer to private data or %NULL on failure 2117 * 2118 * This function is used to initialize per-group P2P module context. Currently, 2119 * this is only used to manage GO functionality and P2P clients do not need to 2120 * create an instance of this per-group information. 2121 */ 2122 struct p2p_group * p2p_group_init(struct p2p_data *p2p, 2123 struct p2p_group_config *config); 2124 2125 /** 2126 * p2p_group_deinit - Deinitialize P2P group 2127 * @group: P2P group context from p2p_group_init() 2128 */ 2129 void p2p_group_deinit(struct p2p_group *group); 2130 2131 /** 2132 * p2p_group_notif_assoc - Notification of P2P client association with GO 2133 * @group: P2P group context from p2p_group_init() 2134 * @addr: Interface address of the P2P client 2135 * @ie: IEs from the (Re)association Request frame 2136 * @len: Length of the ie buffer in octets 2137 * Returns: 0 on success, -1 on failure 2138 */ 2139 int p2p_group_notif_assoc(struct p2p_group *group, const u8 *addr, 2140 const u8 *ie, size_t len); 2141 2142 /** 2143 * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response 2144 * @group: P2P group context from p2p_group_init() 2145 * @status: Status value (P2P_SC_SUCCESS if association succeeded) 2146 * Returns: P2P IE for (Re)association Response or %NULL on failure 2147 * 2148 * The caller is responsible for freeing the returned buffer with 2149 * wpabuf_free(). 2150 */ 2151 struct wpabuf * p2p_group_assoc_resp_ie(struct p2p_group *group, u8 status); 2152 2153 /** 2154 * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO 2155 * @group: P2P group context from p2p_group_init() 2156 * @addr: Interface address of the P2P client 2157 */ 2158 void p2p_group_notif_disassoc(struct p2p_group *group, const u8 *addr); 2159 2160 /** 2161 * p2p_group_notif_formation_done - Notification of completed group formation 2162 * @group: P2P group context from p2p_group_init() 2163 */ 2164 void p2p_group_notif_formation_done(struct p2p_group *group); 2165 2166 /** 2167 * p2p_group_notif_noa - Notification of NoA change 2168 * @group: P2P group context from p2p_group_init() 2169 * @noa: Notice of Absence attribute payload, %NULL if none 2170 * @noa_len: Length of noa buffer in octets 2171 * Returns: 0 on success, -1 on failure 2172 * 2173 * Notify the P2P group management about a new NoA contents. This will be 2174 * inserted into the P2P IEs in Beacon and Probe Response frames with rest of 2175 * the group information. 2176 */ 2177 int p2p_group_notif_noa(struct p2p_group *group, const u8 *noa, 2178 size_t noa_len); 2179 2180 /** 2181 * p2p_group_match_dev_type - Match device types in group with requested type 2182 * @group: P2P group context from p2p_group_init() 2183 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs) 2184 * Returns: 1 on match, 0 on mismatch 2185 * 2186 * This function can be used to match the Requested Device Type attribute in 2187 * WPS IE with the device types of a group member for deciding whether a GO 2188 * should reply to a Probe Request frame. Match will be reported if the WPS IE 2189 * is not requested any specific device type. 2190 */ 2191 int p2p_group_match_dev_type(struct p2p_group *group, struct wpabuf *wps); 2192 2193 /** 2194 * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id 2195 */ 2196 int p2p_group_match_dev_id(struct p2p_group *group, struct wpabuf *p2p); 2197 2198 /** 2199 * p2p_group_go_discover - Send GO Discoverability Request to a group client 2200 * @group: P2P group context from p2p_group_init() 2201 * Returns: 0 on success (frame scheduled); -1 if client was not found 2202 */ 2203 int p2p_group_go_discover(struct p2p_group *group, const u8 *dev_id, 2204 const u8 *searching_dev, int rx_freq); 2205 2206 2207 /* Generic helper functions */ 2208 2209 /** 2210 * p2p_ie_text - Build text format description of P2P IE 2211 * @p2p_ie: P2P IE 2212 * @buf: Buffer for returning text 2213 * @end: Pointer to the end of the buf area 2214 * Returns: Number of octets written to the buffer or -1 on failure 2215 * 2216 * This function can be used to parse P2P IE contents into text format 2217 * field=value lines. 2218 */ 2219 int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end); 2220 2221 /** 2222 * p2p_scan_result_text - Build text format description of P2P IE 2223 * @ies: Information elements from scan results 2224 * @ies_len: ies buffer length in octets 2225 * @buf: Buffer for returning text 2226 * @end: Pointer to the end of the buf area 2227 * Returns: Number of octets written to the buffer or -1 on failure 2228 * 2229 * This function can be used to parse P2P IE contents into text format 2230 * field=value lines. 2231 */ 2232 int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end); 2233 2234 /** 2235 * p2p_parse_dev_addr_in_p2p_ie - Parse P2P Device Address from a concatenated 2236 * P2P IE 2237 * @p2p_ie: P2P IE 2238 * @dev_addr: Buffer for returning P2P Device Address 2239 * Returns: 0 on success or -1 if P2P Device Address could not be parsed 2240 */ 2241 int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr); 2242 2243 /** 2244 * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s) 2245 * @ies: Information elements from scan results 2246 * @ies_len: ies buffer length in octets 2247 * @dev_addr: Buffer for returning P2P Device Address 2248 * Returns: 0 on success or -1 if P2P Device Address could not be parsed 2249 */ 2250 int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr); 2251 2252 /** 2253 * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame 2254 * @p2p: P2P module context from p2p_init() 2255 * @bssid: BSSID 2256 * @buf: Buffer for writing the P2P IE 2257 * @len: Maximum buf length in octets 2258 * @p2p_group: Whether this is for association with a P2P GO 2259 * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none 2260 * Returns: Number of octets written into buf or -1 on failure 2261 */ 2262 int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf, 2263 size_t len, int p2p_group, struct wpabuf *p2p_ie); 2264 2265 /** 2266 * p2p_scan_ie - Build P2P IE for Probe Request 2267 * @p2p: P2P module context from p2p_init() 2268 * @ies: Buffer for writing P2P IE 2269 * @dev_id: Device ID to search for or %NULL for any 2270 * @bands: Frequency bands used in the scan (enum wpa_radio_work_band bitmap) 2271 */ 2272 void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id, 2273 unsigned int bands); 2274 2275 /** 2276 * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie 2277 * @p2p: P2P module context from p2p_init() 2278 * Returns: Number of octets that p2p_scan_ie() may add to the buffer 2279 */ 2280 size_t p2p_scan_ie_buf_len(struct p2p_data *p2p); 2281 2282 /** 2283 * p2p_build_ssid - Generate a random P2P SSID 2284 * @p2p: P2P module context from p2p_init() 2285 * @ssid: Buffer for SSID 2286 * @ssid_len: Pointer to hold SSID length 2287 */ 2288 void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len); 2289 2290 /** 2291 * p2p_go_params - Generate random P2P group parameters 2292 * @p2p: P2P module context from p2p_init() 2293 * @params: Buffer for parameters 2294 * Returns: 0 on success, -1 on failure 2295 */ 2296 int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params); 2297 2298 /** 2299 * p2p_set_go_role - Set the current role of P2P device 2300 * @p2p: P2P module context from p2p_init() 2301 * @val: 1 if P2P GO, 0 to reset the role variable 2302 * 2303 * This role is configured as P2P GO when authorizing a P2P Client to join the 2304 * group. Once PASN authentication with GO negotiation with predefined GO intent 2305 * values (15 for P2P GO) is completed, the role helps to configure PMK derived 2306 * during the PASN authentication. 2307 */ 2308 void p2p_set_go_role(struct p2p_data *p2p, bool val); 2309 2310 /** 2311 * p2p_get_group_capab - Get Group Capability from P2P IE data 2312 * @p2p_ie: P2P IE(s) contents 2313 * Returns: Group Capability 2314 */ 2315 u8 p2p_get_group_capab(const struct wpabuf *p2p_ie); 2316 2317 /** 2318 * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection 2319 * @p2p_ie: P2P IE(s) contents 2320 * Returns: 0 if cross connection is allow, 1 if not 2321 */ 2322 int p2p_get_cross_connect_disallowed(const struct wpabuf *p2p_ie); 2323 2324 /** 2325 * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data 2326 * @p2p_ie: P2P IE(s) contents 2327 * Returns: Pointer to P2P Device Address or %NULL if not included 2328 */ 2329 const u8 * p2p_get_go_dev_addr(const struct wpabuf *p2p_ie); 2330 2331 /** 2332 * p2p_get_peer_info - Get P2P peer information 2333 * @p2p: P2P module context from p2p_init() 2334 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer 2335 * @next: Whether to select the peer entry following the one indicated by addr 2336 * Returns: Pointer to peer info or %NULL if not found 2337 */ 2338 const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p, 2339 const u8 *addr, int next); 2340 2341 /** 2342 * p2p_get_peer_info_txt - Get internal P2P peer information in text format 2343 * @info: Pointer to P2P peer info from p2p_get_peer_info() 2344 * @buf: Buffer for returning text 2345 * @buflen: Maximum buffer length 2346 * Returns: Number of octets written to the buffer or -1 on failure 2347 * 2348 * Note: This information is internal to the P2P module and subject to change. 2349 * As such, this should not really be used by external programs for purposes 2350 * other than debugging. 2351 */ 2352 int p2p_get_peer_info_txt(const struct p2p_peer_info *info, 2353 char *buf, size_t buflen); 2354 2355 /** 2356 * p2p_peer_known - Check whether P2P peer is known 2357 * @p2p: P2P module context from p2p_init() 2358 * @addr: P2P Device Address of the peer 2359 * Returns: 1 if the specified device is in the P2P peer table or 0 if not 2360 */ 2361 int p2p_peer_known(struct p2p_data *p2p, const u8 *addr); 2362 2363 /** 2364 * p2p_set_client_discoverability - Set client discoverability capability 2365 * @p2p: P2P module context from p2p_init() 2366 * @enabled: Whether client discoverability will be enabled 2367 * 2368 * This function can be used to disable (and re-enable) client discoverability. 2369 * This capability is enabled by default and should not be disabled in normal 2370 * use cases, i.e., this is mainly for testing purposes. 2371 */ 2372 void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled); 2373 2374 /** 2375 * p2p_set_managed_oper - Set managed P2P Device operations capability 2376 * @p2p: P2P module context from p2p_init() 2377 * @enabled: Whether managed P2P Device operations will be enabled 2378 */ 2379 void p2p_set_managed_oper(struct p2p_data *p2p, int enabled); 2380 2381 /** 2382 * p2p_config_get_random_social - Return a random social channel 2383 * @p2p: P2P config 2384 * @op_class: Selected operating class 2385 * @op_channel: Selected social channel 2386 * @avoid_list: Channel ranges to try to avoid or %NULL 2387 * @disallow_list: Channel ranges to discard or %NULL 2388 * Returns: 0 on success, -1 on failure 2389 * 2390 * This function is used before p2p_init is called. A random social channel 2391 * from supports bands 2.4 GHz (channels 1,6,11) and 60 GHz (channel 2) is 2392 * returned on success. 2393 */ 2394 int p2p_config_get_random_social(struct p2p_config *p2p, u8 *op_class, 2395 u8 *op_channel, 2396 struct wpa_freq_range_list *avoid_list, 2397 struct wpa_freq_range_list *disallow_list); 2398 2399 int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel, 2400 u8 forced); 2401 2402 u8 p2p_get_listen_channel(struct p2p_data *p2p); 2403 2404 int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len); 2405 2406 int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr, 2407 u8 *iface_addr); 2408 int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr, 2409 u8 *dev_addr); 2410 int p2p_get_dev_identity_key(struct p2p_data *p2p, const u8 *dev_addr, 2411 const u8 **dik_data, size_t *dik_len, u8 *cipher); 2412 2413 void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr); 2414 2415 /** 2416 * p2p_set_cross_connect - Set cross connection capability 2417 * @p2p: P2P module context from p2p_init() 2418 * @enabled: Whether cross connection will be enabled 2419 */ 2420 void p2p_set_cross_connect(struct p2p_data *p2p, int enabled); 2421 2422 int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr); 2423 2424 /** 2425 * p2p_set_intra_bss_dist - Set intra BSS distribution 2426 * @p2p: P2P module context from p2p_init() 2427 * @enabled: Whether intra BSS distribution will be enabled 2428 */ 2429 void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled); 2430 2431 int p2p_channels_includes_freq(const struct p2p_channels *channels, 2432 unsigned int freq); 2433 2434 int p2p_channels_to_freqs(const struct p2p_channels *channels, 2435 int *freq_list, unsigned int max_len); 2436 2437 /** 2438 * p2p_supported_freq - Check whether channel is supported for P2P 2439 * @p2p: P2P module context from p2p_init() 2440 * @freq: Channel frequency in MHz 2441 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 2442 */ 2443 int p2p_supported_freq(struct p2p_data *p2p, unsigned int freq); 2444 2445 /** 2446 * p2p_supported_freq_go - Check whether channel is supported for P2P GO operation 2447 * @p2p: P2P module context from p2p_init() 2448 * @freq: Channel frequency in MHz 2449 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 2450 */ 2451 int p2p_supported_freq_go(struct p2p_data *p2p, unsigned int freq); 2452 2453 /** 2454 * p2p_supported_freq_cli - Check whether channel is supported for P2P client operation 2455 * @p2p: P2P module context from p2p_init() 2456 * @freq: Channel frequency in MHz 2457 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 2458 */ 2459 int p2p_supported_freq_cli(struct p2p_data *p2p, unsigned int freq); 2460 2461 /** 2462 * p2p_get_pref_freq - Get channel from preferred channel list 2463 * @p2p: P2P module context from p2p_init() 2464 * @channels: List of channels 2465 * Returns: Preferred channel 2466 */ 2467 unsigned int p2p_get_pref_freq(struct p2p_data *p2p, 2468 const struct p2p_channels *channels); 2469 2470 void p2p_update_channel_list(struct p2p_data *p2p, 2471 const struct p2p_channels *chan, 2472 const struct p2p_channels *cli_chan); 2473 2474 bool is_p2p_6ghz_disabled(struct p2p_data *p2p); 2475 2476 /** 2477 * p2p_set_best_channels - Update best channel information 2478 * @p2p: P2P module context from p2p_init() 2479 * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band 2480 * @freq_5: Frequency (MHz) of best channel in 5 GHz band 2481 * @freq_overall: Frequency (MHz) of best channel overall 2482 */ 2483 void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5, 2484 int freq_overall); 2485 2486 /** 2487 * p2p_set_own_freq_preference - Set own preference for channel 2488 * @p2p: P2P module context from p2p_init() 2489 * @freq: Frequency (MHz) of the preferred channel or 0 if no preference 2490 * 2491 * This function can be used to set a preference on the operating channel based 2492 * on frequencies used on the other virtual interfaces that share the same 2493 * radio. If non-zero, this is used to try to avoid multi-channel concurrency. 2494 */ 2495 void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq); 2496 2497 const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p); 2498 2499 /** 2500 * p2p_get_group_num_members - Get number of members in group 2501 * @group: P2P group context from p2p_group_init() 2502 * Returns: Number of members in the group 2503 */ 2504 unsigned int p2p_get_group_num_members(struct p2p_group *group); 2505 2506 /** 2507 * p2p_client_limit_reached - Check if client limit is reached 2508 * @group: P2P group context from p2p_group_init() 2509 * Returns: 1 if no of clients limit reached 2510 */ 2511 int p2p_client_limit_reached(struct p2p_group *group); 2512 2513 /** 2514 * p2p_iterate_group_members - Iterate group members 2515 * @group: P2P group context from p2p_group_init() 2516 * @next: iteration pointer, must be a pointer to a void * that is set to %NULL 2517 * on the first call and not modified later 2518 * Returns: A P2P Device Address for each call and %NULL for no more members 2519 */ 2520 const u8 * p2p_iterate_group_members(struct p2p_group *group, void **next); 2521 2522 /** 2523 * p2p_group_get_client_interface_addr - Get P2P Interface Address of a client in a group 2524 * @group: P2P group context from p2p_group_init() 2525 * @dev_addr: P2P Device Address of the client 2526 * Returns: P2P Interface Address of the client if found or %NULL if no match 2527 * found 2528 */ 2529 const u8 * p2p_group_get_client_interface_addr(struct p2p_group *group, 2530 const u8 *dev_addr); 2531 2532 /** 2533 * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group 2534 * @group: P2P group context from p2p_group_init() 2535 * @addr: P2P Interface Address of the client 2536 * Returns: P2P Device Address of the client if found or %NULL if no match 2537 * found 2538 */ 2539 const u8 * p2p_group_get_dev_addr(struct p2p_group *group, const u8 *addr); 2540 2541 /** 2542 * p2p_group_is_client_connected - Check whether a specific client is connected 2543 * @group: P2P group context from p2p_group_init() 2544 * @addr: P2P Device Address of the client 2545 * Returns: 1 if client is connected or 0 if not 2546 */ 2547 int p2p_group_is_client_connected(struct p2p_group *group, const u8 *dev_addr); 2548 2549 /** 2550 * p2p_group_get_config - Get the group configuration 2551 * @group: P2P group context from p2p_group_init() 2552 * Returns: The group configuration pointer 2553 */ 2554 const struct p2p_group_config * p2p_group_get_config(struct p2p_group *group); 2555 2556 /** 2557 * p2p_loop_on_all_groups - Run the given callback on all groups 2558 * @p2p: P2P module context from p2p_init() 2559 * @group_callback: The callback function pointer 2560 * @user_data: Some user data pointer which can be %NULL 2561 * 2562 * The group_callback function can stop the iteration by returning 0. 2563 */ 2564 void p2p_loop_on_all_groups(struct p2p_data *p2p, 2565 int (*group_callback)(struct p2p_group *group, 2566 void *user_data), 2567 void *user_data); 2568 2569 /** 2570 * p2p_get_peer_found - Get P2P peer info structure of a found peer 2571 * @p2p: P2P module context from p2p_init() 2572 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer 2573 * @next: Whether to select the peer entry following the one indicated by addr 2574 * Returns: The first P2P peer info available or %NULL if no such peer exists 2575 */ 2576 const struct p2p_peer_info * 2577 p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next); 2578 2579 /** 2580 * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions 2581 * @p2p: P2P module context from p2p_init() 2582 */ 2583 void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p); 2584 2585 /** 2586 * p2p_add_wps_vendor_extension - Add a WPS vendor extension 2587 * @p2p: P2P module context from p2p_init() 2588 * @vendor_ext: The vendor extensions to add 2589 * Returns: 0 on success, -1 on failure 2590 * 2591 * The wpabuf structures in the array are owned by the P2P 2592 * module after this call. 2593 */ 2594 int p2p_add_wps_vendor_extension(struct p2p_data *p2p, 2595 const struct wpabuf *vendor_ext); 2596 2597 /** 2598 * p2p_set_oper_channel - Set the P2P operating channel 2599 * @p2p: P2P module context from p2p_init() 2600 * @op_reg_class: Operating regulatory class to set 2601 * @op_channel: operating channel to set 2602 * @cfg_op_channel : Whether op_channel is hardcoded in configuration 2603 * Returns: 0 on success, -1 on failure 2604 */ 2605 int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel, 2606 int cfg_op_channel); 2607 2608 /** 2609 * p2p_set_pref_chan - Set P2P preferred channel list 2610 * @p2p: P2P module context from p2p_init() 2611 * @num_pref_chan: Number of entries in pref_chan list 2612 * @pref_chan: Preferred channels or %NULL to remove preferences 2613 * Returns: 0 on success, -1 on failure 2614 */ 2615 int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan, 2616 const struct p2p_channel *pref_chan); 2617 2618 /** 2619 * p2p_set_no_go_freq - Set no GO channel ranges 2620 * @p2p: P2P module context from p2p_init() 2621 * @list: Channel ranges or %NULL to remove restriction 2622 * Returns: 0 on success, -1 on failure 2623 */ 2624 int p2p_set_no_go_freq(struct p2p_data *p2p, 2625 const struct wpa_freq_range_list *list); 2626 2627 /** 2628 * p2p_in_progress - Check whether a P2P operation is progress 2629 * @p2p: P2P module context from p2p_init() 2630 * Returns: 0 if P2P module is idle, 1 if an operation is in progress but not 2631 * in search state, or 2 if search state operation is in progress 2632 */ 2633 int p2p_in_progress(struct p2p_data *p2p); 2634 2635 const char * p2p_wps_method_text(enum p2p_wps_method method); 2636 2637 /** 2638 * p2p_set_config_timeout - Set local config timeouts 2639 * @p2p: P2P module context from p2p_init() 2640 * @go_timeout: Time in 10 ms units it takes to start the GO mode 2641 * @client_timeout: Time in 10 ms units it takes to start the client mode 2642 */ 2643 void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout, 2644 u8 client_timeout); 2645 2646 int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie); 2647 int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie); 2648 int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie); 2649 int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie); 2650 int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie); 2651 int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie); 2652 int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie); 2653 int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie); 2654 int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem); 2655 int p2p_set_wfd_r2_dev_info(struct p2p_data *p2p, const struct wpabuf *elem); 2656 int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem); 2657 int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p, 2658 const struct wpabuf *elem); 2659 struct wpabuf * wifi_display_encaps(struct wpabuf *subelems); 2660 2661 /** 2662 * p2p_set_disc_int - Set min/max discoverable interval for p2p_find 2663 * @p2p: P2P module context from p2p_init() 2664 * @min_disc_int: minDiscoverableInterval (in units of 100 TU); default 1 2665 * @max_disc_int: maxDiscoverableInterval (in units of 100 TU); default 3 2666 * @max_disc_tu: Maximum number of TUs (1.024 ms) for discoverable interval; or 2667 * -1 not to limit 2668 * Returns: 0 on success, or -1 on failure 2669 * 2670 * This function can be used to configure minDiscoverableInterval and 2671 * maxDiscoverableInterval parameters for the Listen state during device 2672 * discovery (p2p_find). A random number of 100 TU units is picked for each 2673 * Listen state iteration from [min_disc_int,max_disc_int] range. 2674 * 2675 * max_disc_tu can be used to further limit the discoverable duration. However, 2676 * it should be noted that use of this parameter is not recommended since it 2677 * would not be compliant with the P2P specification. 2678 */ 2679 int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int, 2680 int max_disc_tu); 2681 2682 /** 2683 * p2p_get_state_txt - Get current P2P state for debug purposes 2684 * @p2p: P2P module context from p2p_init() 2685 * Returns: Name of the current P2P module state 2686 * 2687 * It should be noted that the P2P module state names are internal information 2688 * and subject to change at any point, i.e., this information should be used 2689 * mainly for debugging purposes. 2690 */ 2691 const char * p2p_get_state_txt(struct p2p_data *p2p); 2692 2693 struct wpabuf * p2p_build_nfc_handover_req(struct p2p_data *p2p, 2694 int client_freq, 2695 const u8 *go_dev_addr, 2696 const u8 *ssid, size_t ssid_len); 2697 struct wpabuf * p2p_build_nfc_handover_sel(struct p2p_data *p2p, 2698 int client_freq, 2699 const u8 *go_dev_addr, 2700 const u8 *ssid, size_t ssid_len); 2701 2702 bool p2p_pref_freq_allowed(const struct weighted_pcl *freq_list, bool go); 2703 2704 struct p2p_nfc_params { 2705 int sel; 2706 const u8 *wsc_attr; 2707 size_t wsc_len; 2708 const u8 *p2p_attr; 2709 size_t p2p_len; 2710 2711 enum { 2712 NO_ACTION, JOIN_GROUP, AUTH_JOIN, INIT_GO_NEG, RESP_GO_NEG, 2713 BOTH_GO, PEER_CLIENT 2714 } next_step; 2715 struct p2p_peer_info *peer; 2716 u8 oob_dev_pw[WPS_OOB_PUBKEY_HASH_LEN + 2 + 2717 WPS_OOB_DEVICE_PASSWORD_LEN]; 2718 size_t oob_dev_pw_len; 2719 int go_freq; 2720 u8 go_dev_addr[ETH_ALEN]; 2721 u8 go_ssid[SSID_MAX_LEN]; 2722 size_t go_ssid_len; 2723 }; 2724 2725 int p2p_process_nfc_connection_handover(struct p2p_data *p2p, 2726 struct p2p_nfc_params *params); 2727 2728 void p2p_set_authorized_oob_dev_pw_id(struct p2p_data *p2p, u16 dev_pw_id, 2729 int go_intent, 2730 const u8 *own_interface_addr); 2731 2732 int p2p_set_passphrase_len(struct p2p_data *p2p, unsigned int len); 2733 2734 void p2p_loop_on_known_peers(struct p2p_data *p2p, 2735 void (*peer_callback)(struct p2p_peer_info *peer, 2736 void *user_data), 2737 void *user_data); 2738 2739 void p2p_set_vendor_elems(struct p2p_data *p2p, struct wpabuf **vendor_elem); 2740 2741 void p2p_set_intended_addr(struct p2p_data *p2p, const u8 *intended_addr); 2742 2743 struct p2ps_advertisement * 2744 p2p_service_p2ps_id(struct p2p_data *p2p, u32 adv_id); 2745 int p2p_service_add_asp(struct p2p_data *p2p, int auto_accept, u32 adv_id, 2746 const char *adv_str, u8 svc_state, 2747 u16 config_methods, const char *svc_info, 2748 const u8 *cpt_priority); 2749 int p2p_service_del_asp(struct p2p_data *p2p, u32 adv_id); 2750 void p2p_service_flush_asp(struct p2p_data *p2p); 2751 struct p2ps_advertisement * p2p_get_p2ps_adv_list(struct p2p_data *p2p); 2752 2753 /** 2754 * p2p_expire_peers - Periodic cleanup function to expire peers 2755 * @p2p: P2P module context from p2p_init() 2756 * 2757 * This is a cleanup function that the entity calling p2p_init() is 2758 * expected to call periodically to clean up expired peer entries. 2759 */ 2760 void p2p_expire_peers(struct p2p_data *p2p); 2761 2762 void p2p_set_own_pref_freq_list(struct p2p_data *p2p, 2763 const struct weighted_pcl *pref_freq_list, 2764 unsigned int size); 2765 void p2p_set_override_pref_op_chan(struct p2p_data *p2p, u8 op_class, 2766 u8 chan); 2767 2768 /** 2769 * p2p_group_get_common_freqs - Get the group common frequencies 2770 * @group: P2P group context from p2p_group_init() 2771 * @common_freqs: On return will hold the group common frequencies 2772 * @num: On return will hold the number of group common frequencies 2773 * Returns: 0 on success, -1 otherwise 2774 */ 2775 int p2p_group_get_common_freqs(struct p2p_group *group, int *common_freqs, 2776 unsigned int *num); 2777 2778 struct wpabuf * p2p_build_probe_resp_template(struct p2p_data *p2p, 2779 unsigned int freq); 2780 2781 void p2p_set_6ghz_dev_capab(struct p2p_data *p2p, bool allow_6ghz); 2782 bool is_p2p_6ghz_capable(struct p2p_data *p2p); 2783 bool p2p_is_peer_6ghz_capab(struct p2p_data *p2p, const u8 *addr); 2784 bool p2p_peer_wfd_enabled(struct p2p_data *p2p, const u8 *peer_addr); 2785 bool p2p_wfd_enabled(struct p2p_data *p2p); 2786 bool is_p2p_allow_6ghz(struct p2p_data *p2p); 2787 void set_p2p_allow_6ghz(struct p2p_data *p2p, bool value); 2788 int p2p_remove_6ghz_channels(struct weighted_pcl *pref_freq_list, int size); 2789 int p2p_channel_to_freq(int op_class, int channel); 2790 struct wpabuf * p2p_usd_elems(struct p2p_data *p2p); 2791 void p2p_process_usd_elems(struct p2p_data *p2p, const u8 *ies, u16 ies_len, 2792 const u8 *peer_addr, unsigned int freq); 2793 int p2p_get_dik_id(struct p2p_data *p2p, const u8 *peer); 2794 2795 void p2p_set_bootstrapmethods(struct p2p_data *p2p, int bootstrap_methods); 2796 void p2p_set_pasn_type(struct p2p_data *p2p, u8 pasn_type); 2797 void p2p_set_comeback_after(struct p2p_data *p2p, int comeback_after); 2798 void p2p_set_reg_info(struct p2p_data *p2p, u8 val); 2799 void p2p_set_twt_power_mgmt(struct p2p_data *p2p, int val); 2800 void p2p_set_dev_addr(struct p2p_data *p2p, const u8 *addr); 2801 void p2p_set_chan_switch_req_enable(struct p2p_data *p2p, bool val); 2802 void p2p_set_invitation_op_freq(struct p2p_data *p2p, int freq); 2803 2804 int p2p_get_listen_freq(struct p2p_data *p2p, const u8 *peer_addr); 2805 int p2p_initiate_pasn_auth(struct p2p_data *p2p, const u8 *addr, int freq); 2806 int p2p_initiate_pasn_verify(struct p2p_data *p2p, const u8 *peer_addr, 2807 int freq, enum p2p_invite_role role, 2808 const u8 *bssid, const u8 *ssid, size_t ssid_len, 2809 unsigned int force_freq, const u8 *go_dev_addr, 2810 unsigned int pref_freq); 2811 int p2p_pasn_auth_rx(struct p2p_data *p2p, const struct ieee80211_mgmt *mgmt, 2812 size_t len, int freq); 2813 int p2p_prepare_data_element(struct p2p_data *p2p, const u8 *peer_addr); 2814 int p2p_parse_data_element(struct p2p_data *p2p, const u8 *data, size_t len); 2815 int p2p_pasn_validate_and_update_pmkid(struct p2p_data *p2p, const u8 *addr, 2816 const u8 *pmkid); 2817 int p2p_pasn_auth_tx_status(struct p2p_data *p2p, const u8 *data, 2818 size_t data_len, bool acked, bool verify); 2819 int p2p_config_sae_password(struct p2p_data *p2p, const char *pw); 2820 void p2p_pasn_pmksa_set_pmk(struct p2p_data *p2p, const u8 *src, const u8 *dst, 2821 const u8 *pmk, size_t pmk_len, const u8 *pmkid); 2822 void p2p_set_store_pasn_ptk(struct p2p_data *p2p, u8 val); 2823 void p2p_pasn_store_ptk(struct p2p_data *p2p, struct wpa_ptk *ptk); 2824 int p2p_pasn_get_ptk(struct p2p_data *p2p, const u8 **buf, size_t *buf_len); 2825 void p2p_usd_service_hash(struct p2p_data *p2p, const char *service_name); 2826 int p2p_get_dira_info(struct p2p_data *p2p, char *buf, size_t buflen); 2827 2828 void p2p_update_dfs_ap_info(struct p2p_data *p2p, int freq, 2829 enum chan_width ap_ch_width, bool disconnect_evt); 2830 2831 #endif /* P2P_H */ 2832