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 15 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 #ifdef CONFIG_TESTING_OPTIONS 745 /** 746 * Operating class for own operational channel in Invitation Response 747 */ 748 u8 inv_op_class; 749 750 /** 751 * inv_op_channel - Own operational channel in Invitation Response 752 */ 753 u8 inv_op_channel; 754 #endif /* CONFIG_TESTING_OPTIONS */ 755 756 /** 757 * cb_ctx - Context to use with callback functions 758 */ 759 void *cb_ctx; 760 761 /** 762 * debug_print - Debug print 763 * @ctx: Callback context from cb_ctx 764 * @level: Debug verbosity level (MSG_*) 765 * @msg: Debug message 766 */ 767 void (*debug_print)(void *ctx, int level, const char *msg); 768 769 770 /* Callbacks to request lower layer driver operations */ 771 772 /** 773 * p2p_scan - Request a P2P scan/search 774 * @ctx: Callback context from cb_ctx 775 * @type: Scan type 776 * @freq: Specific frequency (MHz) to scan or 0 for no restriction 777 * @num_req_dev_types: Number of requested device types 778 * @req_dev_types: Array containing requested device types 779 * @dev_id: Device ID to search for or %NULL to find all devices 780 * @pw_id: Device Password ID 781 * @include_6ghz: Include 6 GHz channels in P2P scan 782 * Returns: 0 on success, -1 on failure 783 * 784 * This callback function is used to request a P2P scan or search 785 * operation to be completed. Type type argument specifies which type 786 * of scan is to be done. @P2P_SCAN_SOCIAL indicates that only the 787 * social channels (1, 6, 11) should be scanned. @P2P_SCAN_FULL 788 * indicates that all channels are to be scanned. @P2P_SCAN_SPECIFIC 789 * request a scan of a single channel specified by freq. 790 * @P2P_SCAN_SOCIAL_PLUS_ONE request scan of all the social channels 791 * plus one extra channel specified by freq. 792 * 793 * The full scan is used for the initial scan to find group owners from 794 * all. The other types are used during search phase scan of the social 795 * channels (with potential variation if the Listen channel of the 796 * target peer is known or if other channels are scanned in steps). 797 * 798 * The scan results are returned after this call by calling 799 * p2p_scan_res_handler() for each scan result that has a P2P IE and 800 * then calling p2p_scan_res_handled() to indicate that all scan 801 * results have been indicated. 802 */ 803 int (*p2p_scan)(void *ctx, enum p2p_scan_type type, int freq, 804 unsigned int num_req_dev_types, 805 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id, 806 bool include_6ghz); 807 808 /** 809 * send_probe_resp - Transmit a Probe Response frame 810 * @ctx: Callback context from cb_ctx 811 * @buf: Probe Response frame (including the header and body) 812 * @freq: Forced frequency (in MHz) to use or 0. 813 * Returns: 0 on success, -1 on failure 814 * 815 * This function is used to reply to Probe Request frames that were 816 * indicated with a call to p2p_probe_req_rx(). The response is to be 817 * sent on the same channel, unless otherwise specified, or to be 818 * dropped if the driver is not listening to Probe Request frames 819 * anymore. 820 * 821 * Alternatively, the responsibility for building the Probe Response 822 * frames in Listen state may be in another system component in which 823 * case this function need to be implemented (i.e., the function 824 * pointer can be %NULL). The WPS and P2P IEs to be added for Probe 825 * Response frames in such a case are available from the 826 * start_listen() callback. It should be noted that the received Probe 827 * Request frames must be indicated by calling p2p_probe_req_rx() even 828 * if this send_probe_resp() is not used. 829 */ 830 int (*send_probe_resp)(void *ctx, const struct wpabuf *buf, 831 unsigned int freq); 832 833 /** 834 * send_action - Transmit an Action frame 835 * @ctx: Callback context from cb_ctx 836 * @freq: Frequency in MHz for the channel on which to transmit 837 * @dst: Destination MAC address (Address 1) 838 * @src: Source MAC address (Address 2) 839 * @bssid: BSSID (Address 3) 840 * @buf: Frame body (starting from Category field) 841 * @len: Length of buf in octets 842 * @wait_time: How many msec to wait for a response frame 843 * @scheduled: Return value indicating whether the transmissions was 844 * scheduled to happen once the radio is available 845 * Returns: 0 on success, -1 on failure 846 * 847 * The Action frame may not be transmitted immediately and the status 848 * of the transmission must be reported by calling 849 * p2p_send_action_cb() once the frame has either been transmitted or 850 * it has been dropped due to excessive retries or other failure to 851 * transmit. 852 */ 853 int (*send_action)(void *ctx, unsigned int freq, const u8 *dst, 854 const u8 *src, const u8 *bssid, const u8 *buf, 855 size_t len, unsigned int wait_time, int *scheduled); 856 857 /** 858 * send_action_done - Notify that Action frame sequence was completed 859 * @ctx: Callback context from cb_ctx 860 * 861 * This function is called when the Action frame sequence that was 862 * started with send_action() has been completed, i.e., when there is 863 * no need to wait for a response from the destination peer anymore. 864 */ 865 void (*send_action_done)(void *ctx); 866 867 /** 868 * start_listen - Start Listen state 869 * @ctx: Callback context from cb_ctx 870 * @freq: Frequency of the listen channel in MHz 871 * @duration: Duration for the Listen state in milliseconds 872 * @probe_resp_ie: IE(s) to be added to Probe Response frames 873 * Returns: 0 on success, -1 on failure 874 * 875 * This Listen state may not start immediately since the driver may 876 * have other pending operations to complete first. Once the Listen 877 * state has started, p2p_listen_cb() must be called to notify the P2P 878 * module. Once the Listen state is stopped, p2p_listen_end() must be 879 * called to notify the P2P module that the driver is not in the Listen 880 * state anymore. 881 * 882 * If the send_probe_resp() is not used for generating the response, 883 * the IEs from probe_resp_ie need to be added to the end of the Probe 884 * Response frame body. If send_probe_resp() is used, the probe_resp_ie 885 * information can be ignored. 886 */ 887 int (*start_listen)(void *ctx, unsigned int freq, 888 unsigned int duration, 889 const struct wpabuf *probe_resp_ie); 890 /** 891 * stop_listen - Stop Listen state 892 * @ctx: Callback context from cb_ctx 893 * 894 * This callback can be used to stop a Listen state operation that was 895 * previously requested with start_listen(). 896 */ 897 void (*stop_listen)(void *ctx); 898 899 /** 900 * get_noa - Get current Notice of Absence attribute payload 901 * @ctx: Callback context from cb_ctx 902 * @interface_addr: P2P Interface Address of the GO 903 * @buf: Buffer for returning NoA 904 * @buf_len: Buffer length in octets 905 * Returns: Number of octets used in buf, 0 to indicate no NoA is being 906 * advertized, or -1 on failure 907 * 908 * This function is used to fetch the current Notice of Absence 909 * attribute value from GO. 910 */ 911 int (*get_noa)(void *ctx, const u8 *interface_addr, u8 *buf, 912 size_t buf_len); 913 914 /* Callbacks to notify events to upper layer management entity */ 915 916 /** 917 * dev_found - Notification of a found P2P Device 918 * @ctx: Callback context from cb_ctx 919 * @addr: Source address of the message triggering this notification 920 * @info: P2P peer information 921 * @new_device: Inform if the peer is newly found 922 * 923 * This callback is used to notify that a new P2P Device has been 924 * found. This may happen, e.g., during Search state based on scan 925 * results or during Listen state based on receive Probe Request and 926 * Group Owner Negotiation Request. 927 */ 928 void (*dev_found)(void *ctx, const u8 *addr, 929 const struct p2p_peer_info *info, 930 int new_device); 931 932 /** 933 * dev_lost - Notification of a lost P2P Device 934 * @ctx: Callback context from cb_ctx 935 * @dev_addr: P2P Device Address of the lost P2P Device 936 * 937 * This callback is used to notify that a P2P Device has been deleted. 938 */ 939 void (*dev_lost)(void *ctx, const u8 *dev_addr); 940 941 /** 942 * find_stopped - Notification of a p2p_find operation stopping 943 * @ctx: Callback context from cb_ctx 944 */ 945 void (*find_stopped)(void *ctx); 946 947 /** 948 * go_neg_req_rx - Notification of a receive GO Negotiation Request 949 * @ctx: Callback context from cb_ctx 950 * @src: Source address of the message triggering this notification 951 * @dev_passwd_id: WPS Device Password ID 952 * @go_intent: Peer's GO Intent 953 * 954 * This callback is used to notify that a P2P Device is requesting 955 * group owner negotiation with us, but we do not have all the 956 * necessary information to start GO Negotiation. This indicates that 957 * the local user has not authorized the connection yet by providing a 958 * PIN or PBC button press. This information can be provided with a 959 * call to p2p_connect(). 960 */ 961 void (*go_neg_req_rx)(void *ctx, const u8 *src, u16 dev_passwd_id, 962 u8 go_intent); 963 964 /** 965 * go_neg_completed - Notification of GO Negotiation results 966 * @ctx: Callback context from cb_ctx 967 * @res: GO Negotiation results 968 * 969 * This callback is used to notify that Group Owner Negotiation has 970 * been completed. Non-zero struct p2p_go_neg_results::status indicates 971 * failed negotiation. In case of success, this function is responsible 972 * for creating a new group interface (or using the existing interface 973 * depending on driver features), setting up the group interface in 974 * proper mode based on struct p2p_go_neg_results::role_go and 975 * initializing WPS provisioning either as a Registrar (if GO) or as an 976 * Enrollee. Successful WPS provisioning must be indicated by calling 977 * p2p_wps_success_cb(). The callee is responsible for timing out group 978 * formation if WPS provisioning cannot be completed successfully 979 * within 15 seconds. 980 */ 981 void (*go_neg_completed)(void *ctx, struct p2p_go_neg_results *res); 982 983 /** 984 * set_go_security_config - Set security configuration for P2P GO 985 * @ctx: Callback context from cb_ctx 986 * @res: GO Negotiation results 987 * 988 * This callback is used to set PMK/passphrase derived during PASN 989 * authentication with a P2P client. This will fetch an active P2P group 990 * owner instance and configure PMKSA in case of password based PASN, or 991 * configures the passphrase and derive PT in case of unauthenticated 992 * PASN. 993 */ 994 void (*set_go_security_config)(void *ctx, 995 struct p2p_go_neg_results *res); 996 997 /** 998 * sd_request - Callback on Service Discovery Request 999 * @ctx: Callback context from cb_ctx 1000 * @freq: Frequency (in MHz) of the channel 1001 * @sa: Source address of the request 1002 * @dialog_token: Dialog token 1003 * @update_indic: Service Update Indicator from the source of request 1004 * @tlvs: P2P Service Request TLV(s) 1005 * @tlvs_len: Length of tlvs buffer in octets 1006 * 1007 * This callback is used to indicate reception of a service discovery 1008 * request. Response to the query must be indicated by calling 1009 * p2p_sd_response() with the context information from the arguments to 1010 * this callback function. 1011 * 1012 * This callback handler can be set to %NULL to indicate that service 1013 * discovery is not supported. 1014 */ 1015 void (*sd_request)(void *ctx, int freq, const u8 *sa, u8 dialog_token, 1016 u16 update_indic, const u8 *tlvs, size_t tlvs_len); 1017 1018 /** 1019 * sd_response - Callback on Service Discovery Response 1020 * @ctx: Callback context from cb_ctx 1021 * @sa: Source address of the request 1022 * @update_indic: Service Update Indicator from the source of response 1023 * @tlvs: P2P Service Response TLV(s) 1024 * @tlvs_len: Length of tlvs buffer in octets 1025 * 1026 * This callback is used to indicate reception of a service discovery 1027 * response. This callback handler can be set to %NULL if no service 1028 * discovery requests are used. The information provided with this call 1029 * is replies to the queries scheduled with p2p_sd_request(). 1030 */ 1031 void (*sd_response)(void *ctx, const u8 *sa, u16 update_indic, 1032 const u8 *tlvs, size_t tlvs_len); 1033 1034 /** 1035 * prov_disc_req - Callback on Provisiong Discovery Request 1036 * @ctx: Callback context from cb_ctx 1037 * @peer: Source address of the request 1038 * @config_methods: Requested WPS Config Method 1039 * @dev_addr: P2P Device Address of the found P2P Device 1040 * @pri_dev_type: Primary Device Type 1041 * @dev_name: Device Name 1042 * @supp_config_methods: Supported configuration Methods 1043 * @dev_capab: Device Capabilities 1044 * @group_capab: Group Capabilities 1045 * @group_id: P2P Group ID (or %NULL if not included) 1046 * @group_id_len: Length of P2P Group ID 1047 * 1048 * This callback is used to indicate reception of a Provision Discovery 1049 * Request frame that the P2P module accepted. 1050 */ 1051 void (*prov_disc_req)(void *ctx, const u8 *peer, u16 config_methods, 1052 const u8 *dev_addr, const u8 *pri_dev_type, 1053 const char *dev_name, u16 supp_config_methods, 1054 u8 dev_capab, u8 group_capab, 1055 const u8 *group_id, size_t group_id_len); 1056 1057 /** 1058 * prov_disc_resp - Callback on Provisiong Discovery Response 1059 * @ctx: Callback context from cb_ctx 1060 * @peer: Source address of the response 1061 * @config_methods: Value from p2p_prov_disc_req() or 0 on failure 1062 * 1063 * This callback is used to indicate reception of a Provision Discovery 1064 * Response frame for a pending request scheduled with 1065 * p2p_prov_disc_req(). This callback handler can be set to %NULL if 1066 * provision discovery is not used. 1067 */ 1068 void (*prov_disc_resp)(void *ctx, const u8 *peer, u16 config_methods); 1069 1070 /** 1071 * prov_disc_fail - Callback on Provision Discovery failure 1072 * @ctx: Callback context from cb_ctx 1073 * @peer: Source address of the response 1074 * @status: Cause of failure, will not be %P2P_PROV_DISC_SUCCESS 1075 * @adv_id: If non-zero, then the adv_id of the PD Request 1076 * @adv_mac: P2P Device Address of the advertizer 1077 * @deferred_session_resp: Deferred session response sent by advertizer 1078 * 1079 * This callback is used to indicate either a failure or no response 1080 * to an earlier provision discovery request. 1081 * 1082 * This callback handler can be set to %NULL if provision discovery 1083 * is not used or failures do not need to be indicated. 1084 */ 1085 void (*prov_disc_fail)(void *ctx, const u8 *peer, 1086 enum p2p_prov_disc_status status, 1087 u32 adv_id, const u8 *adv_mac, 1088 const char *deferred_session_resp); 1089 1090 /** 1091 * invitation_process - Optional callback for processing Invitations 1092 * @ctx: Callback context from cb_ctx 1093 * @sa: Source address of the Invitation Request 1094 * @bssid: P2P Group BSSID from the request or %NULL if not included 1095 * @go_dev_addr: GO Device Address from P2P Group ID 1096 * @ssid: SSID from P2P Group ID 1097 * @ssid_len: Length of ssid buffer in octets 1098 * @go: Variable for returning whether the local end is GO in the group 1099 * @group_bssid: Buffer for returning P2P Group BSSID (if local end GO) 1100 * @force_freq: Variable for returning forced frequency for the group 1101 * @persistent_group: Whether this is an invitation to reinvoke a 1102 * persistent group (instead of invitation to join an active 1103 * group) 1104 * @channels: Available operating channels for the group 1105 * @dev_pw_id: Device Password ID for NFC static handover or -1 if not 1106 * used 1107 * @p2p2: Whether invitation request was wrapped in PASN authentication 1108 * received from a P2P2 device 1109 * @new_ssid: Pointer to hold new SSID 1110 * @new_ssid_len: Length of new SSID buffer in octets 1111 * Returns: Status code (P2P_SC_*) 1112 * 1113 * This optional callback can be used to implement persistent reconnect 1114 * by allowing automatic restarting of persistent groups without user 1115 * interaction. If this callback is not implemented (i.e., is %NULL), 1116 * the received Invitation Request frames are replied with 1117 * %P2P_SC_REQ_RECEIVED status and indicated to upper layer with the 1118 * invitation_result() callback. 1119 * 1120 * If the requested parameters are acceptable and the group is known, 1121 * %P2P_SC_SUCCESS may be returned. If the requested group is unknown, 1122 * %P2P_SC_FAIL_UNKNOWN_GROUP should be returned. %P2P_SC_REQ_RECEIVED 1123 * can be returned if there is not enough data to provide immediate 1124 * response, i.e., if some sort of user interaction is needed. The 1125 * invitation_received() callback will be called in that case 1126 * immediately after this call. 1127 */ 1128 u8 (*invitation_process)(void *ctx, const u8 *sa, const u8 *bssid, 1129 const u8 *go_dev_addr, const u8 *ssid, 1130 size_t ssid_len, int *go, u8 *group_bssid, 1131 int *force_freq, int persistent_group, 1132 const struct p2p_channels *channels, 1133 int dev_pw_id, bool p2p2, const u8 **new_ssid, 1134 size_t *new_ssid_len); 1135 1136 /** 1137 * invitation_received - Callback on Invitation Request RX 1138 * @ctx: Callback context from cb_ctx 1139 * @sa: Source address of the Invitation Request 1140 * @bssid: P2P Group BSSID or %NULL if not received 1141 * @ssid: SSID of the group 1142 * @ssid_len: Length of ssid in octets 1143 * @go_dev_addr: GO Device Address 1144 * @status: Response Status 1145 * @op_freq: Operational frequency for the group 1146 * 1147 * This callback is used to indicate sending of an Invitation Response 1148 * for a received Invitation Request. If status == 0 (success), the 1149 * upper layer code is responsible for starting the group. status == 1 1150 * indicates need to get user authorization for the group. Other status 1151 * values indicate that the invitation request was rejected. 1152 */ 1153 void (*invitation_received)(void *ctx, const u8 *sa, const u8 *bssid, 1154 const u8 *ssid, size_t ssid_len, 1155 const u8 *go_dev_addr, u8 status, 1156 int op_freq, const u8 *pmkid, const u8 *pmk, 1157 size_t pmk_len); 1158 1159 /** 1160 * invitation_result - Callback on Invitation result 1161 * @ctx: Callback context from cb_ctx 1162 * @status: Negotiation result (Status Code) 1163 * @new_ssid: New SSID received in invitation response 1164 * @new_ssid_len: Length of new SSID received 1165 * @bssid: P2P Group BSSID or %NULL if not received 1166 * @channels: Available operating channels for the group 1167 * @addr: Peer address 1168 * @freq: Frequency (in MHz) indicated during invitation or 0 1169 * @peer_oper_freq: Operating frequency (in MHz) advertized by the peer 1170 * during invitation or 0 1171 * @pmkid: PMKID used during invitation handshake 1172 * @pmk: The derived PMK 1173 * @pmk_len: PMK length in octets 1174 * @go_dev_addr: The P2P Device Address of the GO 1175 * 1176 * This callback is used to indicate result of an Invitation procedure 1177 * started with a call to p2p_invite(). The indicated status code is 1178 * the value received from the peer in Invitation Response with 0 1179 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a 1180 * local failure in transmitting the Invitation Request. 1181 */ 1182 void (*invitation_result)(void *ctx, int status, const u8 *new_ssid, 1183 size_t new_ssid_len, const u8 *bssid, 1184 const struct p2p_channels *channels, 1185 const u8 *addr, int freq, int peer_oper_freq, 1186 const u8 *pmkid, const u8 *pmk, 1187 size_t pmk_len, const u8 *go_dev_addr); 1188 1189 /** 1190 * go_connected - Check whether we are connected to a GO 1191 * @ctx: Callback context from cb_ctx 1192 * @dev_addr: P2P Device Address of a GO 1193 * Returns: 1 if we are connected as a P2P client to the specified GO 1194 * or 0 if not. 1195 */ 1196 int (*go_connected)(void *ctx, const u8 *dev_addr); 1197 1198 /** 1199 * presence_resp - Callback on Presence Response 1200 * @ctx: Callback context from cb_ctx 1201 * @src: Source address (GO's P2P Interface Address) 1202 * @status: Result of the request (P2P_SC_*) 1203 * @noa: Returned NoA value 1204 * @noa_len: Length of the NoA buffer in octets 1205 */ 1206 void (*presence_resp)(void *ctx, const u8 *src, u8 status, 1207 const u8 *noa, size_t noa_len); 1208 1209 /** 1210 * is_concurrent_session_active - Check whether concurrent session is 1211 * active on other virtual interfaces 1212 * @ctx: Callback context from cb_ctx 1213 * Returns: 1 if concurrent session is active on other virtual interface 1214 * or 0 if not. 1215 */ 1216 int (*is_concurrent_session_active)(void *ctx); 1217 1218 /** 1219 * is_p2p_in_progress - Check whether P2P operation is in progress 1220 * @ctx: Callback context from cb_ctx 1221 * Returns: 1 if P2P operation (e.g., group formation) is in progress 1222 * or 0 if not. 1223 */ 1224 int (*is_p2p_in_progress)(void *ctx); 1225 1226 /** 1227 * Determine if we have a persistent group we share with remote peer 1228 * and allocate interface for this group if needed 1229 * @ctx: Callback context from cb_ctx 1230 * @addr: Peer device address to search for 1231 * @ssid: Persistent group SSID or %NULL if any 1232 * @ssid_len: Length of @ssid 1233 * @go_dev_addr: Buffer for returning GO P2P Device Address 1234 * @ret_ssid: Buffer for returning group SSID 1235 * @ret_ssid_len: Buffer for returning length of @ssid 1236 * @intended_iface_addr: Buffer for returning intended iface address 1237 * Returns: 1 if a matching persistent group was found, 0 otherwise 1238 */ 1239 int (*get_persistent_group)(void *ctx, const u8 *addr, const u8 *ssid, 1240 size_t ssid_len, u8 *go_dev_addr, 1241 u8 *ret_ssid, size_t *ret_ssid_len, 1242 u8 *intended_iface_addr); 1243 1244 /** 1245 * Get information about a possible local GO role 1246 * @ctx: Callback context from cb_ctx 1247 * @intended_addr: Buffer for returning intended GO interface address 1248 * @ssid: Buffer for returning group SSID 1249 * @ssid_len: Buffer for returning length of @ssid 1250 * @group_iface: Buffer for returning whether a separate group interface 1251 * would be used 1252 * @freq: Variable for returning the current operating frequency of a 1253 * currently running P2P GO. 1254 * Returns: 1 if GO info found, 0 otherwise 1255 * 1256 * This is used to compose New Group settings (SSID, and intended 1257 * address) during P2PS provisioning if results of provisioning *might* 1258 * result in our being an autonomous GO. 1259 */ 1260 int (*get_go_info)(void *ctx, u8 *intended_addr, 1261 u8 *ssid, size_t *ssid_len, int *group_iface, 1262 unsigned int *freq); 1263 1264 /** 1265 * remove_stale_groups - Remove stale P2PS groups 1266 * 1267 * Because P2PS stages *potential* GOs, and remote devices can remove 1268 * credentials unilaterally, we need to make sure we don't let stale 1269 * unusable groups build up. 1270 */ 1271 int (*remove_stale_groups)(void *ctx, const u8 *peer, const u8 *go, 1272 const u8 *ssid, size_t ssid_len); 1273 1274 /** 1275 * p2ps_prov_complete - P2PS provisioning complete 1276 * 1277 * When P2PS provisioning completes (successfully or not) we must 1278 * transmit all of the results to the upper layers. 1279 */ 1280 void (*p2ps_prov_complete)(void *ctx, enum p2p_status_code status, 1281 const u8 *dev, 1282 const u8 *adv_mac, const u8 *ses_mac, 1283 const u8 *grp_mac, u32 adv_id, u32 ses_id, 1284 u8 conncap, int passwd_id, 1285 const u8 *persist_ssid, 1286 size_t persist_ssid_size, int response_done, 1287 int prov_start, const char *session_info, 1288 const u8 *feat_cap, size_t feat_cap_len, 1289 unsigned int freq, const u8 *group_ssid, 1290 size_t group_ssid_len); 1291 1292 /** 1293 * prov_disc_resp_cb - Callback for indicating completion of PD Response 1294 * @ctx: Callback context from cb_ctx 1295 * Returns: 1 if operation was started, 0 otherwise 1296 * 1297 * This callback can be used to perform any pending actions after 1298 * provisioning. It is mainly used for P2PS pending group creation. 1299 */ 1300 int (*prov_disc_resp_cb)(void *ctx); 1301 1302 /** 1303 * p2ps_group_capability - Determine group capability 1304 * @ctx: Callback context from cb_ctx 1305 * @incoming: Peer requested roles, expressed with P2PS_SETUP_* bitmap. 1306 * @role: Local roles, expressed with P2PS_SETUP_* bitmap. 1307 * @force_freq: Variable for returning forced frequency for the group. 1308 * @pref_freq: Variable for returning preferred frequency for the group. 1309 * Returns: P2PS_SETUP_* bitmap of group capability result. 1310 * 1311 * This function can be used to determine group capability and 1312 * frequencies based on information from P2PS PD exchange and the 1313 * current state of ongoing groups and driver capabilities. 1314 */ 1315 u8 (*p2ps_group_capability)(void *ctx, u8 incoming, u8 role, 1316 unsigned int *force_freq, 1317 unsigned int *pref_freq); 1318 1319 /** 1320 * get_pref_freq_list - Get preferred frequency list for an interface 1321 * @ctx: Callback context from cb_ctx 1322 * @go: Whether the use if for GO role 1323 * @len: Length of freq_list in entries (both IN and OUT) 1324 * @freq_list: Buffer for returning the preferred frequencies (MHz) 1325 * Returns: 0 on success, -1 on failure 1326 * 1327 * This function can be used to query the preferred frequency list from 1328 * the driver specific to a particular interface type. 1329 */ 1330 int (*get_pref_freq_list)(void *ctx, int go, 1331 unsigned int *len, 1332 struct weighted_pcl *freq_list); 1333 1334 /** 1335 * register_bootstrap_comeback - Register timeout to initiate bootstrap 1336 * comeback request 1337 * @ctx: Callback context from cb_ctx 1338 * @addr: P2P Device Address to which comeback request is to be sent 1339 * @comeback_after: Time in TUs after which comeback request is sent 1340 * 1341 * This function can be used to send comeback request after given 1342 * timeout. 1343 */ 1344 void (*register_bootstrap_comeback)(void *ctx, const u8 *addr, 1345 u16 comeback_after); 1346 1347 /** 1348 * bootstrap_req_rx - Indicate bootstrap request from a P2P peer 1349 * @ctx: Callback context from cb_ctx 1350 * @addr: P2P device address from which bootstrap request was received 1351 * @bootstrap_method: Bootstrapping method request by the peer device 1352 * 1353 * This function can be used to notify that bootstrap request is 1354 * received from a P2P peer. 1355 */ 1356 void (*bootstrap_req_rx)(void *ctx, const u8 *addr, 1357 u16 bootstrap_method); 1358 1359 /** 1360 * bootstrap_rsp_rx - Indicate bootstrapping response from a P2P peer 1361 * @ctx: Callback context from cb_ctx 1362 * @addr: P2P device address with which bootstrapping is completed 1363 * @status: P2P Status Code of bootstrapping handshake 1364 * @freq: Frequency in which bootstrapping is done 1365 * @bootstrap_method: Bootstrapping method by the peer device 1366 * 1367 * This function can be used to notify the status of bootstrapping 1368 * handshake. 1369 */ 1370 void (*bootstrap_rsp_rx)(void *ctx, const u8 *addr, 1371 enum p2p_status_code status, int freq, 1372 u16 bootstrap_method); 1373 1374 /** 1375 * validate_dira - Indicate reception of DIRA to be validated against a 1376 * list of available device identity keys 1377 * @ctx: Callback context from cb_ctx 1378 * @peer_addr: P2P Device address of the peer 1379 * @dira_nonce: DIRA Nonce 1380 * @dira_tag: DIRA Tag 1381 * Returns: Identity block ID on success, 0 on failure 1382 * 1383 * This function can be used to validate DIRA and configure PMK of a 1384 * paired/persistent peer from configuration. The handler function is 1385 * expected to call p2p_pasn_pmksa_set_pmk() to set the PMK/PMKID in 1386 * case a matching entry is found. 1387 */ 1388 int (*validate_dira)(void *ctx, const u8 *peer_addr, 1389 const u8 *dira_nonce, const u8 *dira_tag); 1390 1391 /** 1392 * pasn_send_mgmt - Function handler to transmit a Management frame 1393 * @ctx: Callback context from cb_ctx 1394 * @data: Frame to transmit 1395 * @data_len: Length of frame to transmit 1396 * @noack: No ack flag 1397 * @freq: Frequency in MHz for the channel on which to transmit 1398 * @wait: How many milliseconds to wait for a response frame 1399 * Returns: 0 on success, -1 on failure 1400 */ 1401 int (*pasn_send_mgmt)(void *ctx, const u8 *data, size_t data_len, 1402 int noack, unsigned int freq, unsigned int wait); 1403 1404 /** 1405 * prepare_data_element - Function handler to update protocol specific 1406 * elements in PASN authentication frames 1407 * @ctx: Callback context from cb_ctx 1408 * @peer_addr: Peer MAC address 1409 * Returns: 0 on success, -1 on failure 1410 */ 1411 int (*prepare_data_element)(void *ctx, const u8 *peer_addr); 1412 1413 /** 1414 * parse_data_element - Function handler to parse P2P data element 1415 * @ctx: Callback context from cb_ctx 1416 * @data: Data to be parsed 1417 * @len: Length of data 1418 * Returns: 0 on success, -1 on failure 1419 */ 1420 int (*parse_data_element)(void *ctx, const u8 *data, size_t len); 1421 1422 /** 1423 * pasn_validate_pmkid - Function handler to validate RSN PMKID 1424 * @ctx: Callback context from cb_ctx 1425 * @addr: Peer MAC address 1426 * @pmkid: PMKID in the PASN frame 1427 * Returns: 0 on success, -1 on failure 1428 */ 1429 int (*pasn_validate_pmkid)(void *ctx, const u8 *addr, const u8 *pmkid); 1430 }; 1431 1432 1433 /* P2P module initialization/deinitialization */ 1434 1435 /** 1436 * p2p_init - Initialize P2P module 1437 * @cfg: P2P module configuration 1438 * Returns: Pointer to private data or %NULL on failure 1439 * 1440 * This function is used to initialize global P2P module context (one per 1441 * device). The P2P module will keep a copy of the configuration data, so the 1442 * caller does not need to maintain this structure. However, the callback 1443 * functions and the context parameters to them must be kept available until 1444 * the P2P module is deinitialized with p2p_deinit(). 1445 */ 1446 struct p2p_data * p2p_init(const struct p2p_config *cfg); 1447 1448 /** 1449 * p2p_deinit - Deinitialize P2P module 1450 * @p2p: P2P module context from p2p_init() 1451 */ 1452 void p2p_deinit(struct p2p_data *p2p); 1453 1454 /** 1455 * p2p_flush - Flush P2P module state 1456 * @p2p: P2P module context from p2p_init() 1457 * 1458 * This command removes the P2P module state like peer device entries. 1459 */ 1460 void p2p_flush(struct p2p_data *p2p); 1461 1462 /** 1463 * p2p_unauthorize - Unauthorize the specified peer device 1464 * @p2p: P2P module context from p2p_init() 1465 * @addr: P2P peer entry to be unauthorized 1466 * Returns: 0 on success, -1 on failure 1467 * 1468 * This command removes any connection authorization from the specified P2P 1469 * peer device address. This can be used, e.g., to cancel effect of a previous 1470 * p2p_authorize() or p2p_connect() call that has not yet resulted in completed 1471 * GO Negotiation. 1472 */ 1473 int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr); 1474 1475 /** 1476 * p2p_set_dev_name - Set device name 1477 * @p2p: P2P module context from p2p_init() 1478 * Returns: 0 on success, -1 on failure 1479 * 1480 * This function can be used to update the P2P module configuration with 1481 * information that was not available at the time of the p2p_init() call. 1482 */ 1483 int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name); 1484 1485 int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer); 1486 int p2p_set_model_name(struct p2p_data *p2p, const char *model_name); 1487 int p2p_set_model_number(struct p2p_data *p2p, const char *model_number); 1488 int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number); 1489 1490 void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods); 1491 void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid); 1492 1493 /** 1494 * p2p_set_pri_dev_type - Set primary device type 1495 * @p2p: P2P module context from p2p_init() 1496 * Returns: 0 on success, -1 on failure 1497 * 1498 * This function can be used to update the P2P module configuration with 1499 * information that was not available at the time of the p2p_init() call. 1500 */ 1501 int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type); 1502 1503 /** 1504 * p2p_set_sec_dev_types - Set secondary device types 1505 * @p2p: P2P module context from p2p_init() 1506 * Returns: 0 on success, -1 on failure 1507 * 1508 * This function can be used to update the P2P module configuration with 1509 * information that was not available at the time of the p2p_init() call. 1510 */ 1511 int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8], 1512 size_t num_dev_types); 1513 1514 int p2p_set_country(struct p2p_data *p2p, const char *country); 1515 1516 1517 /* Commands from upper layer management entity */ 1518 1519 enum p2p_discovery_type { 1520 P2P_FIND_START_WITH_FULL, 1521 P2P_FIND_ONLY_SOCIAL, 1522 P2P_FIND_PROGRESSIVE 1523 }; 1524 1525 /** 1526 * p2p_find - Start P2P Find (Device Discovery) 1527 * @p2p: P2P module context from p2p_init() 1528 * @timeout: Timeout for find operation in seconds or 0 for no timeout 1529 * @type: Device Discovery type 1530 * @num_req_dev_types: Number of requested device types 1531 * @req_dev_types: Requested device types array, must be an array 1532 * containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no 1533 * requested device types. 1534 * @dev_id: Device ID to search for or %NULL to find all devices 1535 * @search_delay: Extra delay in milliseconds between search iterations 1536 * @seek_count: Number of ASP Service Strings in the seek_string array 1537 * @seek_string: ASP Service Strings to query for in Probe Requests 1538 * @freq: Requested first scan frequency (in MHz) to modify type == 1539 * P2P_FIND_START_WITH_FULL behavior. 0 = Use normal full scan. 1540 * If p2p_find is already in progress, this parameter is ignored and full 1541 * scan will be executed. 1542 * @include_6ghz: Include 6 GHz channels in P2P find 1543 * Returns: 0 on success, -1 on failure 1544 */ 1545 int p2p_find(struct p2p_data *p2p, unsigned int timeout, 1546 enum p2p_discovery_type type, 1547 unsigned int num_req_dev_types, const u8 *req_dev_types, 1548 const u8 *dev_id, unsigned int search_delay, 1549 u8 seek_count, const char **seek_string, int freq, 1550 bool include_6ghz); 1551 1552 /** 1553 * p2p_notify_scan_trigger_status - Indicate scan trigger status 1554 * @p2p: P2P module context from p2p_init() 1555 * @status: 0 on success, -1 on failure 1556 */ 1557 void p2p_notify_scan_trigger_status(struct p2p_data *p2p, int status); 1558 1559 /** 1560 * p2p_stop_find - Stop P2P Find (Device Discovery) 1561 * @p2p: P2P module context from p2p_init() 1562 */ 1563 void p2p_stop_find(struct p2p_data *p2p); 1564 1565 /** 1566 * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq 1567 * @p2p: P2P module context from p2p_init() 1568 * @freq: Frequency in MHz for next operation 1569 * 1570 * This is like p2p_stop_find(), but Listen state is not stopped if we are 1571 * already on the same frequency. 1572 */ 1573 void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq); 1574 1575 /** 1576 * p2p_listen - Start P2P Listen state for specified duration 1577 * @p2p: P2P module context from p2p_init() 1578 * @timeout: Listen state duration in milliseconds 1579 * Returns: 0 on success, -1 on failure 1580 * 1581 * This function can be used to request the P2P module to keep the device 1582 * discoverable on the listen channel for an extended set of time. At least in 1583 * its current form, this is mainly used for testing purposes and may not be of 1584 * much use for normal P2P operations. 1585 */ 1586 int p2p_listen(struct p2p_data *p2p, unsigned int timeout); 1587 1588 /** 1589 * p2p_stop_listen - Stop P2P Listen 1590 * @p2p: P2P module context from p2p_init() 1591 */ 1592 void p2p_stop_listen(struct p2p_data *p2p); 1593 1594 /** 1595 * p2p_connect - Start P2P group formation (GO negotiation) 1596 * @p2p: P2P module context from p2p_init() 1597 * @peer_addr: MAC address of the peer P2P client 1598 * @wps_method: WPS method to be used in provisioning 1599 * @go_intent: Local GO intent value (1..15) 1600 * @own_interface_addr: Intended interface address to use with the group 1601 * @force_freq: The only allowed channel frequency in MHz or 0 1602 * @persistent_group: Whether to create a persistent group (0 = no, 1 = 1603 * persistent group without persistent reconnect, 2 = persistent group with 1604 * persistent reconnect) 1605 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate 1606 * a new SSID 1607 * @force_ssid_len: Length of $force_ssid buffer 1608 * @pd_before_go_neg: Whether to send Provision Discovery prior to GO 1609 * Negotiation as an interoperability workaround when initiating group 1610 * formation 1611 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 1612 * force_freq == 0) 1613 * @oob_pw_id: OOB password identifier 1614 * @p2p2: Device supports P2P2 features 1615 * @bootstrap: Bootstrapping method requested for P2P2 provision discovery 1616 * @password: P2P2 pairing password or %NULL for opportunistic method 1617 * Returns: 0 on success, -1 on failure 1618 */ 1619 int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr, 1620 enum p2p_wps_method wps_method, 1621 int go_intent, const u8 *own_interface_addr, 1622 unsigned int force_freq, int persistent_group, 1623 const u8 *force_ssid, size_t force_ssid_len, 1624 int pd_before_go_neg, unsigned int pref_freq, u16 oob_pw_id, 1625 bool p2p2, u16 bootstrap, const char *password); 1626 1627 /** 1628 * p2p_authorize - Authorize P2P group formation (GO negotiation) 1629 * @p2p: P2P module context from p2p_init() 1630 * @peer_addr: MAC address of the peer P2P client 1631 * @wps_method: WPS method to be used in provisioning 1632 * @go_intent: Local GO intent value (1..15) 1633 * @own_interface_addr: Intended interface address to use with the group 1634 * @force_freq: The only allowed channel frequency in MHz or 0 1635 * @persistent_group: Whether to create a persistent group (0 = no, 1 = 1636 * persistent group without persistent reconnect, 2 = persistent group with 1637 * persistent reconnect) 1638 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate 1639 * a new SSID 1640 * @force_ssid_len: Length of $force_ssid buffer 1641 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 1642 * force_freq == 0) 1643 * @oob_pw_id: OOB password identifier 1644 * @bootstrap: Bootstrapping method requested for P2P2 provision discovery 1645 * @password: P2P2 pairing password or %NULL for opportunistic method 1646 * Returns: 0 on success, -1 on failure 1647 * 1648 * This is like p2p_connect(), but the actual group negotiation is not 1649 * initiated automatically, i.e., the other end is expected to do that. 1650 */ 1651 int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr, 1652 enum p2p_wps_method wps_method, 1653 int go_intent, const u8 *own_interface_addr, 1654 unsigned int force_freq, int persistent_group, 1655 const u8 *force_ssid, size_t force_ssid_len, 1656 unsigned int pref_freq, u16 oob_pw_id, u16 bootstrap, 1657 const char *password); 1658 1659 /** 1660 * p2p_reject - Reject peer device (explicitly block connection attempts) 1661 * @p2p: P2P module context from p2p_init() 1662 * @peer_addr: MAC address of the peer P2P client 1663 * Returns: 0 on success, -1 on failure 1664 */ 1665 int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr); 1666 1667 /** 1668 * p2p_set_req_bootstrap_method - Send Provision Discovery Request to initiate 1669 * bootstrapping 1670 * @p2p: P2P module context from p2p_init() 1671 * @peer_addr: MAC address of the peer P2P client 1672 * @boostrap: Bootstrapping method 1673 * Returns: 0 on success, -1 on failure 1674 */ 1675 int p2p_set_req_bootstrap_method(struct p2p_data *p2p, const u8 *peer_addr, 1676 u16 bootstrap); 1677 1678 /** 1679 * p2p_prov_disc_req - Send Provision Discovery Request 1680 * @p2p: P2P module context from p2p_init() 1681 * @peer_addr: MAC address of the peer P2P client 1682 * @p2ps_prov: Provisioning info for P2PS 1683 * @config_methods: WPS Config Methods value (only one bit set) 1684 * @join: Whether this is used by a client joining an active group 1685 * @force_freq: Forced TX frequency for the frame (mainly for the join case) 1686 * @user_initiated_pd: Flag to indicate if initiated by user or not 1687 * Returns: 0 on success, -1 on failure 1688 * 1689 * This function can be used to request a discovered P2P peer to display a PIN 1690 * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us 1691 * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame 1692 * is transmitted once immediately and if no response is received, the frame 1693 * will be sent again whenever the target device is discovered during device 1694 * dsicovery (start with a p2p_find() call). Response from the peer is 1695 * indicated with the p2p_config::prov_disc_resp() callback. 1696 */ 1697 int p2p_prov_disc_req(struct p2p_data *p2p, const u8 *peer_addr, 1698 struct p2ps_provision *p2ps_prov, u16 config_methods, 1699 int join, int force_freq, 1700 int user_initiated_pd); 1701 1702 /** 1703 * p2p_sd_request - Schedule a service discovery query 1704 * @p2p: P2P module context from p2p_init() 1705 * @dst: Destination peer or %NULL to apply for all peers 1706 * @tlvs: P2P Service Query TLV(s) 1707 * Returns: Reference to the query or %NULL on failure 1708 * 1709 * Response to the query is indicated with the p2p_config::sd_response() 1710 * callback. 1711 */ 1712 void * p2p_sd_request(struct p2p_data *p2p, const u8 *dst, 1713 const struct wpabuf *tlvs); 1714 1715 #ifdef CONFIG_WIFI_DISPLAY 1716 void * p2p_sd_request_wfd(struct p2p_data *p2p, const u8 *dst, 1717 const struct wpabuf *tlvs); 1718 #endif /* CONFIG_WIFI_DISPLAY */ 1719 1720 /** 1721 * p2p_sd_cancel_request - Cancel a pending service discovery query 1722 * @p2p: P2P module context from p2p_init() 1723 * @req: Query reference from p2p_sd_request() 1724 * Returns: 0 if request for cancelled; -1 if not found 1725 */ 1726 int p2p_sd_cancel_request(struct p2p_data *p2p, void *req); 1727 1728 /** 1729 * p2p_sd_response - Send response to a service discovery query 1730 * @p2p: P2P module context from p2p_init() 1731 * @freq: Frequency from p2p_config::sd_request() callback 1732 * @dst: Destination address from p2p_config::sd_request() callback 1733 * @dialog_token: Dialog token from p2p_config::sd_request() callback 1734 * @resp_tlvs: P2P Service Response TLV(s) 1735 * 1736 * This function is called as a response to the request indicated with 1737 * p2p_config::sd_request() callback. 1738 */ 1739 void p2p_sd_response(struct p2p_data *p2p, int freq, const u8 *dst, 1740 u8 dialog_token, const struct wpabuf *resp_tlvs); 1741 1742 /** 1743 * p2p_sd_service_update - Indicate a change in local services 1744 * @p2p: P2P module context from p2p_init() 1745 * 1746 * This function needs to be called whenever there is a change in availability 1747 * of the local services. This will increment the Service Update Indicator 1748 * value which will be used in SD Request and Response frames. 1749 */ 1750 void p2p_sd_service_update(struct p2p_data *p2p); 1751 1752 1753 enum p2p_invite_role { 1754 P2P_INVITE_ROLE_GO, 1755 P2P_INVITE_ROLE_ACTIVE_GO, 1756 P2P_INVITE_ROLE_CLIENT 1757 }; 1758 1759 /** 1760 * p2p_invite - Invite a P2P Device into a group 1761 * @p2p: P2P module context from p2p_init() 1762 * @peer: Device Address of the peer P2P Device 1763 * @role: Local role in the group 1764 * @bssid: Group BSSID or %NULL if not known 1765 * @ssid: Group SSID 1766 * @ssid_len: Length of ssid in octets 1767 * @force_freq: The only allowed channel frequency in MHz or 0 1768 * @go_dev_addr: Forced GO Device Address or %NULL if none 1769 * @persistent_group: Whether this is to reinvoke a persistent group 1770 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 1771 * force_freq == 0) 1772 * @dev_pw_id: Device Password ID from OOB Device Password (NFC) static handover 1773 * case or -1 if not used 1774 * @p2p2: Operating in P2P2 mode 1775 * Returns: 0 on success, -1 on failure 1776 */ 1777 int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role, 1778 const u8 *bssid, const u8 *ssid, size_t ssid_len, 1779 unsigned int force_freq, const u8 *go_dev_addr, 1780 int persistent_group, unsigned int pref_freq, int dev_pw_id, 1781 bool p2p2); 1782 1783 /** 1784 * p2p_presence_req - Request GO presence 1785 * @p2p: P2P module context from p2p_init() 1786 * @go_interface_addr: GO P2P Interface Address 1787 * @own_interface_addr: Own P2P Interface Address for this group 1788 * @freq: Group operating frequence (in MHz) 1789 * @duration1: Preferred presence duration in microseconds 1790 * @interval1: Preferred presence interval in microseconds 1791 * @duration2: Acceptable presence duration in microseconds 1792 * @interval2: Acceptable presence interval in microseconds 1793 * Returns: 0 on success, -1 on failure 1794 * 1795 * If both duration and interval values are zero, the parameter pair is not 1796 * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0). 1797 */ 1798 int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr, 1799 const u8 *own_interface_addr, unsigned int freq, 1800 u32 duration1, u32 interval1, u32 duration2, 1801 u32 interval2); 1802 1803 /** 1804 * p2p_ext_listen - Set Extended Listen Timing 1805 * @p2p: P2P module context from p2p_init() 1806 * @freq: Group operating frequence (in MHz) 1807 * @period: Availability period in milliseconds (1-65535; 0 to disable) 1808 * @interval: Availability interval in milliseconds (1-65535; 0 to disable) 1809 * Returns: 0 on success, -1 on failure 1810 * 1811 * This function can be used to enable or disable (period = interval = 0) 1812 * Extended Listen Timing. When enabled, the P2P Device will become 1813 * discoverable (go into Listen State) every @interval milliseconds for at 1814 * least @period milliseconds. 1815 */ 1816 int p2p_ext_listen(struct p2p_data *p2p, unsigned int period, 1817 unsigned int interval); 1818 1819 /* Event notifications from upper layer management operations */ 1820 1821 /** 1822 * p2p_wps_success_cb - Report successfully completed WPS provisioning 1823 * @p2p: P2P module context from p2p_init() 1824 * @mac_addr: Peer address 1825 * 1826 * This function is used to report successfully completed WPS provisioning 1827 * during group formation in both GO/Registrar and client/Enrollee roles. 1828 */ 1829 void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr); 1830 1831 /** 1832 * p2p_group_formation_failed - Report failed WPS provisioning 1833 * @p2p: P2P module context from p2p_init() 1834 * 1835 * This function is used to report failed group formation. This can happen 1836 * either due to failed WPS provisioning or due to 15 second timeout during 1837 * the provisioning phase. 1838 */ 1839 void p2p_group_formation_failed(struct p2p_data *p2p); 1840 1841 /** 1842 * p2p_get_provisioning_info - Get any stored provisioning info 1843 * @p2p: P2P module context from p2p_init() 1844 * @addr: Peer P2P Device Address 1845 * Returns: WPS provisioning information (WPS config method) or 0 if no 1846 * information is available 1847 * 1848 * This function is used to retrieve stored WPS provisioning info for the given 1849 * peer. 1850 */ 1851 u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr); 1852 1853 /** 1854 * p2p_clear_provisioning_info - Clear any stored provisioning info 1855 * @p2p: P2P module context from p2p_init() 1856 * @iface_addr: Peer P2P Device Address 1857 * 1858 * This function is used to clear stored WPS provisioning info for the given 1859 * peer. 1860 */ 1861 void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr); 1862 1863 1864 /* Event notifications from lower layer driver operations */ 1865 1866 /** 1867 * enum p2p_probe_req_status 1868 * 1869 * @P2P_PREQ_MALFORMED: frame was not well-formed 1870 * @P2P_PREQ_NOT_LISTEN: device isn't in listen state, frame ignored 1871 * @P2P_PREQ_NOT_P2P: frame was not a P2P probe request 1872 * @P2P_PREQ_P2P_NOT_PROCESSED: frame was P2P but wasn't processed 1873 * @P2P_PREQ_P2P_PROCESSED: frame has been processed by P2P 1874 */ 1875 enum p2p_probe_req_status { 1876 P2P_PREQ_MALFORMED, 1877 P2P_PREQ_NOT_LISTEN, 1878 P2P_PREQ_NOT_P2P, 1879 P2P_PREQ_NOT_PROCESSED, 1880 P2P_PREQ_PROCESSED 1881 }; 1882 1883 /** 1884 * p2p_probe_req_rx - Report reception of a Probe Request frame 1885 * @p2p: P2P module context from p2p_init() 1886 * @addr: Source MAC address 1887 * @dst: Destination MAC address if available or %NULL 1888 * @bssid: BSSID if available or %NULL 1889 * @ie: Information elements from the Probe Request frame body 1890 * @ie_len: Length of ie buffer in octets 1891 * @rx_freq: Probe Request frame RX frequency 1892 * @p2p_lo_started: Whether P2P Listen Offload is started 1893 * Returns: value indicating the type and status of the probe request 1894 */ 1895 enum p2p_probe_req_status 1896 p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst, 1897 const u8 *bssid, const u8 *ie, size_t ie_len, 1898 unsigned int rx_freq, int p2p_lo_started); 1899 1900 /** 1901 * p2p_rx_action - Report received Action frame 1902 * @p2p: P2P module context from p2p_init() 1903 * @da: Destination address of the received Action frame 1904 * @sa: Source address of the received Action frame 1905 * @bssid: Address 3 of the received Action frame 1906 * @category: Category of the received Action frame 1907 * @data: Action frame body after the Category field 1908 * @len: Length of the data buffer in octets 1909 * @freq: Frequency (in MHz) on which the frame was received 1910 */ 1911 void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa, 1912 const u8 *bssid, u8 category, 1913 const u8 *data, size_t len, int freq); 1914 1915 /** 1916 * p2p_scan_res_handler - Indicate a P2P scan results 1917 * @p2p: P2P module context from p2p_init() 1918 * @bssid: BSSID of the scan result 1919 * @freq: Frequency of the channel on which the device was found in MHz 1920 * @rx_time: Time when the result was received 1921 * @level: Signal level (signal strength of the received Beacon/Probe Response 1922 * frame) 1923 * @ies: Pointer to IEs from the scan result 1924 * @ies_len: Length of the ies buffer 1925 * Returns: 0 to continue or 1 to stop scan result indication 1926 * 1927 * This function is called to indicate a scan result entry with P2P IE from a 1928 * scan requested with struct p2p_config::p2p_scan(). This can be called during 1929 * the actual scan process (i.e., whenever a new device is found) or as a 1930 * sequence of calls after the full scan has been completed. The former option 1931 * can result in optimized operations, but may not be supported by all 1932 * driver/firmware designs. The ies buffer need to include at least the P2P IE, 1933 * but it is recommended to include all IEs received from the device. The 1934 * caller does not need to check that the IEs contain a P2P IE before calling 1935 * this function since frames will be filtered internally if needed. 1936 * 1937 * This function will return 1 if it wants to stop scan result iteration (and 1938 * scan in general if it is still in progress). This is used to allow faster 1939 * start of a pending operation, e.g., to start a pending GO negotiation. 1940 */ 1941 int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq, 1942 struct os_reltime *rx_time, int level, const u8 *ies, 1943 size_t ies_len); 1944 1945 /** 1946 * p2p_scan_res_handled - Indicate end of scan results 1947 * @p2p: P2P module context from p2p_init() 1948 * @delay: Search delay for next scan in ms 1949 * 1950 * This function is called to indicate that all P2P scan results from a scan 1951 * have been reported with zero or more calls to p2p_scan_res_handler(). This 1952 * function must be called as a response to successful 1953 * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler() 1954 * calls stopped iteration. 1955 */ 1956 void p2p_scan_res_handled(struct p2p_data *p2p, unsigned int delay); 1957 1958 enum p2p_send_action_result { 1959 P2P_SEND_ACTION_SUCCESS /* Frame was send and acknowledged */, 1960 P2P_SEND_ACTION_NO_ACK /* Frame was sent, but not acknowledged */, 1961 P2P_SEND_ACTION_FAILED /* Frame was not sent due to a failure */ 1962 }; 1963 1964 /** 1965 * p2p_send_action_cb - Notify TX status of an Action frame 1966 * @p2p: P2P module context from p2p_init() 1967 * @freq: Channel frequency in MHz 1968 * @dst: Destination MAC address (Address 1) 1969 * @src: Source MAC address (Address 2) 1970 * @bssid: BSSID (Address 3) 1971 * @result: Result of the transmission attempt 1972 * 1973 * This function is used to indicate the result of an Action frame transmission 1974 * that was requested with struct p2p_config::send_action() callback. 1975 */ 1976 void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst, 1977 const u8 *src, const u8 *bssid, 1978 enum p2p_send_action_result result); 1979 1980 /** 1981 * p2p_listen_cb - Indicate the start of a requested Listen state 1982 * @p2p: P2P module context from p2p_init() 1983 * @freq: Listen channel frequency in MHz 1984 * @duration: Duration for the Listen state in milliseconds 1985 * 1986 * This function is used to indicate that a Listen state requested with 1987 * struct p2p_config::start_listen() callback has started. 1988 */ 1989 void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq, 1990 unsigned int duration); 1991 1992 /** 1993 * p2p_listen_end - Indicate the end of a requested Listen state 1994 * @p2p: P2P module context from p2p_init() 1995 * @freq: Listen channel frequency in MHz 1996 * Returns: 0 if no operations were started, 1 if an operation was started 1997 * 1998 * This function is used to indicate that a Listen state requested with 1999 * struct p2p_config::start_listen() callback has ended. 2000 */ 2001 int p2p_listen_end(struct p2p_data *p2p, unsigned int freq); 2002 2003 void p2p_listen_failed(struct p2p_data *p2p, unsigned int freq); 2004 2005 void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code, 2006 const u8 *ie, size_t ie_len); 2007 2008 void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code, 2009 const u8 *ie, size_t ie_len); 2010 2011 2012 /* Per-group P2P state for GO */ 2013 2014 struct p2p_group; 2015 2016 /** 2017 * struct p2p_group_config - P2P group configuration 2018 * 2019 * This configuration is provided to the P2P module during initialization of 2020 * the per-group information with p2p_group_init(). 2021 */ 2022 struct p2p_group_config { 2023 /** 2024 * p2p2 - Whether the group was formed using P2P2 2025 */ 2026 bool p2p2; 2027 2028 /** 2029 * persistent_group - Whether the group is persistent 2030 * 0 = not a persistent group 2031 * 1 = persistent group without persistent reconnect 2032 * 2 = persistent group with persistent reconnect 2033 */ 2034 int persistent_group; 2035 2036 /** 2037 * interface_addr - P2P Interface Address of the group 2038 */ 2039 u8 interface_addr[ETH_ALEN]; 2040 2041 /** 2042 * max_clients - Maximum number of clients in the group 2043 */ 2044 unsigned int max_clients; 2045 2046 /** 2047 * ssid - Group SSID 2048 */ 2049 u8 ssid[SSID_MAX_LEN]; 2050 2051 /** 2052 * ssid_len - Length of SSID 2053 */ 2054 size_t ssid_len; 2055 2056 /** 2057 * freq - Operating channel of the group 2058 */ 2059 int freq; 2060 2061 /** 2062 * ip_addr_alloc - Whether IP address allocation within 4-way handshake 2063 * is supported 2064 */ 2065 int ip_addr_alloc; 2066 2067 /** 2068 * cb_ctx - Context to use with callback functions 2069 */ 2070 void *cb_ctx; 2071 2072 /** 2073 * ie_update - Notification of IE update 2074 * @ctx: Callback context from cb_ctx 2075 * @beacon_ies: P2P IE for Beacon frames or %NULL if no change 2076 * @proberesp_ies: P2P Ie for Probe Response frames 2077 * 2078 * P2P module uses this callback function to notify whenever the P2P IE 2079 * in Beacon or Probe Response frames should be updated based on group 2080 * events. 2081 * 2082 * The callee is responsible for freeing the returned buffer(s) with 2083 * wpabuf_free(). 2084 */ 2085 void (*ie_update)(void *ctx, struct wpabuf *beacon_ies, 2086 struct wpabuf *proberesp_ies); 2087 2088 /** 2089 * idle_update - Notification of changes in group idle state 2090 * @ctx: Callback context from cb_ctx 2091 * @idle: Whether the group is idle (no associated stations) 2092 */ 2093 void (*idle_update)(void *ctx, int idle); 2094 }; 2095 2096 /** 2097 * p2p_group_init - Initialize P2P group 2098 * @p2p: P2P module context from p2p_init() 2099 * @config: P2P group configuration (will be freed by p2p_group_deinit()) 2100 * Returns: Pointer to private data or %NULL on failure 2101 * 2102 * This function is used to initialize per-group P2P module context. Currently, 2103 * this is only used to manage GO functionality and P2P clients do not need to 2104 * create an instance of this per-group information. 2105 */ 2106 struct p2p_group * p2p_group_init(struct p2p_data *p2p, 2107 struct p2p_group_config *config); 2108 2109 /** 2110 * p2p_group_deinit - Deinitialize P2P group 2111 * @group: P2P group context from p2p_group_init() 2112 */ 2113 void p2p_group_deinit(struct p2p_group *group); 2114 2115 /** 2116 * p2p_group_notif_assoc - Notification of P2P client association with GO 2117 * @group: P2P group context from p2p_group_init() 2118 * @addr: Interface address of the P2P client 2119 * @ie: IEs from the (Re)association Request frame 2120 * @len: Length of the ie buffer in octets 2121 * Returns: 0 on success, -1 on failure 2122 */ 2123 int p2p_group_notif_assoc(struct p2p_group *group, const u8 *addr, 2124 const u8 *ie, size_t len); 2125 2126 /** 2127 * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response 2128 * @group: P2P group context from p2p_group_init() 2129 * @status: Status value (P2P_SC_SUCCESS if association succeeded) 2130 * Returns: P2P IE for (Re)association Response or %NULL on failure 2131 * 2132 * The caller is responsible for freeing the returned buffer with 2133 * wpabuf_free(). 2134 */ 2135 struct wpabuf * p2p_group_assoc_resp_ie(struct p2p_group *group, u8 status); 2136 2137 /** 2138 * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO 2139 * @group: P2P group context from p2p_group_init() 2140 * @addr: Interface address of the P2P client 2141 */ 2142 void p2p_group_notif_disassoc(struct p2p_group *group, const u8 *addr); 2143 2144 /** 2145 * p2p_group_notif_formation_done - Notification of completed group formation 2146 * @group: P2P group context from p2p_group_init() 2147 */ 2148 void p2p_group_notif_formation_done(struct p2p_group *group); 2149 2150 /** 2151 * p2p_group_notif_noa - Notification of NoA change 2152 * @group: P2P group context from p2p_group_init() 2153 * @noa: Notice of Absence attribute payload, %NULL if none 2154 * @noa_len: Length of noa buffer in octets 2155 * Returns: 0 on success, -1 on failure 2156 * 2157 * Notify the P2P group management about a new NoA contents. This will be 2158 * inserted into the P2P IEs in Beacon and Probe Response frames with rest of 2159 * the group information. 2160 */ 2161 int p2p_group_notif_noa(struct p2p_group *group, const u8 *noa, 2162 size_t noa_len); 2163 2164 /** 2165 * p2p_group_match_dev_type - Match device types in group with requested type 2166 * @group: P2P group context from p2p_group_init() 2167 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs) 2168 * Returns: 1 on match, 0 on mismatch 2169 * 2170 * This function can be used to match the Requested Device Type attribute in 2171 * WPS IE with the device types of a group member for deciding whether a GO 2172 * should reply to a Probe Request frame. Match will be reported if the WPS IE 2173 * is not requested any specific device type. 2174 */ 2175 int p2p_group_match_dev_type(struct p2p_group *group, struct wpabuf *wps); 2176 2177 /** 2178 * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id 2179 */ 2180 int p2p_group_match_dev_id(struct p2p_group *group, struct wpabuf *p2p); 2181 2182 /** 2183 * p2p_group_go_discover - Send GO Discoverability Request to a group client 2184 * @group: P2P group context from p2p_group_init() 2185 * Returns: 0 on success (frame scheduled); -1 if client was not found 2186 */ 2187 int p2p_group_go_discover(struct p2p_group *group, const u8 *dev_id, 2188 const u8 *searching_dev, int rx_freq); 2189 2190 2191 /* Generic helper functions */ 2192 2193 /** 2194 * p2p_ie_text - Build text format description of P2P IE 2195 * @p2p_ie: P2P IE 2196 * @buf: Buffer for returning text 2197 * @end: Pointer to the end of the buf area 2198 * Returns: Number of octets written to the buffer or -1 on failure 2199 * 2200 * This function can be used to parse P2P IE contents into text format 2201 * field=value lines. 2202 */ 2203 int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end); 2204 2205 /** 2206 * p2p_scan_result_text - Build text format description of P2P IE 2207 * @ies: Information elements from scan results 2208 * @ies_len: ies buffer length in octets 2209 * @buf: Buffer for returning text 2210 * @end: Pointer to the end of the buf area 2211 * Returns: Number of octets written to the buffer or -1 on failure 2212 * 2213 * This function can be used to parse P2P IE contents into text format 2214 * field=value lines. 2215 */ 2216 int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end); 2217 2218 /** 2219 * p2p_parse_dev_addr_in_p2p_ie - Parse P2P Device Address from a concatenated 2220 * P2P IE 2221 * @p2p_ie: P2P IE 2222 * @dev_addr: Buffer for returning P2P Device Address 2223 * Returns: 0 on success or -1 if P2P Device Address could not be parsed 2224 */ 2225 int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr); 2226 2227 /** 2228 * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s) 2229 * @ies: Information elements from scan results 2230 * @ies_len: ies buffer length in octets 2231 * @dev_addr: Buffer for returning P2P Device Address 2232 * Returns: 0 on success or -1 if P2P Device Address could not be parsed 2233 */ 2234 int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr); 2235 2236 /** 2237 * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame 2238 * @p2p: P2P module context from p2p_init() 2239 * @bssid: BSSID 2240 * @buf: Buffer for writing the P2P IE 2241 * @len: Maximum buf length in octets 2242 * @p2p_group: Whether this is for association with a P2P GO 2243 * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none 2244 * Returns: Number of octets written into buf or -1 on failure 2245 */ 2246 int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf, 2247 size_t len, int p2p_group, struct wpabuf *p2p_ie); 2248 2249 /** 2250 * p2p_scan_ie - Build P2P IE for Probe Request 2251 * @p2p: P2P module context from p2p_init() 2252 * @ies: Buffer for writing P2P IE 2253 * @dev_id: Device ID to search for or %NULL for any 2254 * @bands: Frequency bands used in the scan (enum wpa_radio_work_band bitmap) 2255 */ 2256 void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id, 2257 unsigned int bands); 2258 2259 /** 2260 * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie 2261 * @p2p: P2P module context from p2p_init() 2262 * Returns: Number of octets that p2p_scan_ie() may add to the buffer 2263 */ 2264 size_t p2p_scan_ie_buf_len(struct p2p_data *p2p); 2265 2266 /** 2267 * p2p_build_ssid - Generate a random P2P SSID 2268 * @p2p: P2P module context from p2p_init() 2269 * @ssid: Buffer for SSID 2270 * @ssid_len: Pointer to hold SSID length 2271 */ 2272 void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len); 2273 2274 /** 2275 * p2p_go_params - Generate random P2P group parameters 2276 * @p2p: P2P module context from p2p_init() 2277 * @params: Buffer for parameters 2278 * Returns: 0 on success, -1 on failure 2279 */ 2280 int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params); 2281 2282 /** 2283 * p2p_set_go_role - Set the current role of P2P device 2284 * @p2p: P2P module context from p2p_init() 2285 * @val: 1 if P2P GO, 0 to reset the role variable 2286 * 2287 * This role is configured as P2P GO when authorizing a P2P Client to join the 2288 * group. Once PASN authentication with GO negotiation with predefined GO intent 2289 * values (15 for P2P GO) is completed, the role helps to configure PMK derived 2290 * during the PASN authentication. 2291 */ 2292 void p2p_set_go_role(struct p2p_data *p2p, bool val); 2293 2294 /** 2295 * p2p_get_group_capab - Get Group Capability from P2P IE data 2296 * @p2p_ie: P2P IE(s) contents 2297 * Returns: Group Capability 2298 */ 2299 u8 p2p_get_group_capab(const struct wpabuf *p2p_ie); 2300 2301 /** 2302 * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection 2303 * @p2p_ie: P2P IE(s) contents 2304 * Returns: 0 if cross connection is allow, 1 if not 2305 */ 2306 int p2p_get_cross_connect_disallowed(const struct wpabuf *p2p_ie); 2307 2308 /** 2309 * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data 2310 * @p2p_ie: P2P IE(s) contents 2311 * Returns: Pointer to P2P Device Address or %NULL if not included 2312 */ 2313 const u8 * p2p_get_go_dev_addr(const struct wpabuf *p2p_ie); 2314 2315 /** 2316 * p2p_get_peer_info - Get P2P peer information 2317 * @p2p: P2P module context from p2p_init() 2318 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer 2319 * @next: Whether to select the peer entry following the one indicated by addr 2320 * Returns: Pointer to peer info or %NULL if not found 2321 */ 2322 const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p, 2323 const u8 *addr, int next); 2324 2325 /** 2326 * p2p_get_peer_info_txt - Get internal P2P peer information in text format 2327 * @info: Pointer to P2P peer info from p2p_get_peer_info() 2328 * @buf: Buffer for returning text 2329 * @buflen: Maximum buffer length 2330 * Returns: Number of octets written to the buffer or -1 on failure 2331 * 2332 * Note: This information is internal to the P2P module and subject to change. 2333 * As such, this should not really be used by external programs for purposes 2334 * other than debugging. 2335 */ 2336 int p2p_get_peer_info_txt(const struct p2p_peer_info *info, 2337 char *buf, size_t buflen); 2338 2339 /** 2340 * p2p_peer_known - Check whether P2P peer is known 2341 * @p2p: P2P module context from p2p_init() 2342 * @addr: P2P Device Address of the peer 2343 * Returns: 1 if the specified device is in the P2P peer table or 0 if not 2344 */ 2345 int p2p_peer_known(struct p2p_data *p2p, const u8 *addr); 2346 2347 /** 2348 * p2p_set_client_discoverability - Set client discoverability capability 2349 * @p2p: P2P module context from p2p_init() 2350 * @enabled: Whether client discoverability will be enabled 2351 * 2352 * This function can be used to disable (and re-enable) client discoverability. 2353 * This capability is enabled by default and should not be disabled in normal 2354 * use cases, i.e., this is mainly for testing purposes. 2355 */ 2356 void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled); 2357 2358 /** 2359 * p2p_set_managed_oper - Set managed P2P Device operations capability 2360 * @p2p: P2P module context from p2p_init() 2361 * @enabled: Whether managed P2P Device operations will be enabled 2362 */ 2363 void p2p_set_managed_oper(struct p2p_data *p2p, int enabled); 2364 2365 /** 2366 * p2p_config_get_random_social - Return a random social channel 2367 * @p2p: P2P config 2368 * @op_class: Selected operating class 2369 * @op_channel: Selected social channel 2370 * @avoid_list: Channel ranges to try to avoid or %NULL 2371 * @disallow_list: Channel ranges to discard or %NULL 2372 * Returns: 0 on success, -1 on failure 2373 * 2374 * This function is used before p2p_init is called. A random social channel 2375 * from supports bands 2.4 GHz (channels 1,6,11) and 60 GHz (channel 2) is 2376 * returned on success. 2377 */ 2378 int p2p_config_get_random_social(struct p2p_config *p2p, u8 *op_class, 2379 u8 *op_channel, 2380 struct wpa_freq_range_list *avoid_list, 2381 struct wpa_freq_range_list *disallow_list); 2382 2383 int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel, 2384 u8 forced); 2385 2386 u8 p2p_get_listen_channel(struct p2p_data *p2p); 2387 2388 int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len); 2389 2390 int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr, 2391 u8 *iface_addr); 2392 int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr, 2393 u8 *dev_addr); 2394 int p2p_get_dev_identity_key(struct p2p_data *p2p, const u8 *dev_addr, 2395 const u8 **dik_data, size_t *dik_len, u8 *cipher); 2396 2397 void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr); 2398 2399 /** 2400 * p2p_set_cross_connect - Set cross connection capability 2401 * @p2p: P2P module context from p2p_init() 2402 * @enabled: Whether cross connection will be enabled 2403 */ 2404 void p2p_set_cross_connect(struct p2p_data *p2p, int enabled); 2405 2406 int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr); 2407 2408 /** 2409 * p2p_set_intra_bss_dist - Set intra BSS distribution 2410 * @p2p: P2P module context from p2p_init() 2411 * @enabled: Whether intra BSS distribution will be enabled 2412 */ 2413 void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled); 2414 2415 int p2p_channels_includes_freq(const struct p2p_channels *channels, 2416 unsigned int freq); 2417 2418 int p2p_channels_to_freqs(const struct p2p_channels *channels, 2419 int *freq_list, unsigned int max_len); 2420 2421 /** 2422 * p2p_supported_freq - Check whether channel is supported for P2P 2423 * @p2p: P2P module context from p2p_init() 2424 * @freq: Channel frequency in MHz 2425 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 2426 */ 2427 int p2p_supported_freq(struct p2p_data *p2p, unsigned int freq); 2428 2429 /** 2430 * p2p_supported_freq_go - Check whether channel is supported for P2P GO operation 2431 * @p2p: P2P module context from p2p_init() 2432 * @freq: Channel frequency in MHz 2433 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 2434 */ 2435 int p2p_supported_freq_go(struct p2p_data *p2p, unsigned int freq); 2436 2437 /** 2438 * p2p_supported_freq_cli - Check whether channel is supported for P2P client operation 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_cli(struct p2p_data *p2p, unsigned int freq); 2444 2445 /** 2446 * p2p_get_pref_freq - Get channel from preferred channel list 2447 * @p2p: P2P module context from p2p_init() 2448 * @channels: List of channels 2449 * Returns: Preferred channel 2450 */ 2451 unsigned int p2p_get_pref_freq(struct p2p_data *p2p, 2452 const struct p2p_channels *channels); 2453 2454 void p2p_update_channel_list(struct p2p_data *p2p, 2455 const struct p2p_channels *chan, 2456 const struct p2p_channels *cli_chan); 2457 2458 bool is_p2p_6ghz_disabled(struct p2p_data *p2p); 2459 2460 /** 2461 * p2p_set_best_channels - Update best channel information 2462 * @p2p: P2P module context from p2p_init() 2463 * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band 2464 * @freq_5: Frequency (MHz) of best channel in 5 GHz band 2465 * @freq_overall: Frequency (MHz) of best channel overall 2466 */ 2467 void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5, 2468 int freq_overall); 2469 2470 /** 2471 * p2p_set_own_freq_preference - Set own preference for channel 2472 * @p2p: P2P module context from p2p_init() 2473 * @freq: Frequency (MHz) of the preferred channel or 0 if no preference 2474 * 2475 * This function can be used to set a preference on the operating channel based 2476 * on frequencies used on the other virtual interfaces that share the same 2477 * radio. If non-zero, this is used to try to avoid multi-channel concurrency. 2478 */ 2479 void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq); 2480 2481 const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p); 2482 2483 /** 2484 * p2p_get_group_num_members - Get number of members in group 2485 * @group: P2P group context from p2p_group_init() 2486 * Returns: Number of members in the group 2487 */ 2488 unsigned int p2p_get_group_num_members(struct p2p_group *group); 2489 2490 /** 2491 * p2p_client_limit_reached - Check if client limit is reached 2492 * @group: P2P group context from p2p_group_init() 2493 * Returns: 1 if no of clients limit reached 2494 */ 2495 int p2p_client_limit_reached(struct p2p_group *group); 2496 2497 /** 2498 * p2p_iterate_group_members - Iterate group members 2499 * @group: P2P group context from p2p_group_init() 2500 * @next: iteration pointer, must be a pointer to a void * that is set to %NULL 2501 * on the first call and not modified later 2502 * Returns: A P2P Device Address for each call and %NULL for no more members 2503 */ 2504 const u8 * p2p_iterate_group_members(struct p2p_group *group, void **next); 2505 2506 /** 2507 * p2p_group_get_client_interface_addr - Get P2P Interface Address of a client in a group 2508 * @group: P2P group context from p2p_group_init() 2509 * @dev_addr: P2P Device Address of the client 2510 * Returns: P2P Interface Address of the client if found or %NULL if no match 2511 * found 2512 */ 2513 const u8 * p2p_group_get_client_interface_addr(struct p2p_group *group, 2514 const u8 *dev_addr); 2515 2516 /** 2517 * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group 2518 * @group: P2P group context from p2p_group_init() 2519 * @addr: P2P Interface Address of the client 2520 * Returns: P2P Device Address of the client if found or %NULL if no match 2521 * found 2522 */ 2523 const u8 * p2p_group_get_dev_addr(struct p2p_group *group, const u8 *addr); 2524 2525 /** 2526 * p2p_group_is_client_connected - Check whether a specific client is connected 2527 * @group: P2P group context from p2p_group_init() 2528 * @addr: P2P Device Address of the client 2529 * Returns: 1 if client is connected or 0 if not 2530 */ 2531 int p2p_group_is_client_connected(struct p2p_group *group, const u8 *dev_addr); 2532 2533 /** 2534 * p2p_group_get_config - Get the group configuration 2535 * @group: P2P group context from p2p_group_init() 2536 * Returns: The group configuration pointer 2537 */ 2538 const struct p2p_group_config * p2p_group_get_config(struct p2p_group *group); 2539 2540 /** 2541 * p2p_loop_on_all_groups - Run the given callback on all groups 2542 * @p2p: P2P module context from p2p_init() 2543 * @group_callback: The callback function pointer 2544 * @user_data: Some user data pointer which can be %NULL 2545 * 2546 * The group_callback function can stop the iteration by returning 0. 2547 */ 2548 void p2p_loop_on_all_groups(struct p2p_data *p2p, 2549 int (*group_callback)(struct p2p_group *group, 2550 void *user_data), 2551 void *user_data); 2552 2553 /** 2554 * p2p_get_peer_found - Get P2P peer info structure of a found peer 2555 * @p2p: P2P module context from p2p_init() 2556 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer 2557 * @next: Whether to select the peer entry following the one indicated by addr 2558 * Returns: The first P2P peer info available or %NULL if no such peer exists 2559 */ 2560 const struct p2p_peer_info * 2561 p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next); 2562 2563 /** 2564 * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions 2565 * @p2p: P2P module context from p2p_init() 2566 */ 2567 void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p); 2568 2569 /** 2570 * p2p_add_wps_vendor_extension - Add a WPS vendor extension 2571 * @p2p: P2P module context from p2p_init() 2572 * @vendor_ext: The vendor extensions to add 2573 * Returns: 0 on success, -1 on failure 2574 * 2575 * The wpabuf structures in the array are owned by the P2P 2576 * module after this call. 2577 */ 2578 int p2p_add_wps_vendor_extension(struct p2p_data *p2p, 2579 const struct wpabuf *vendor_ext); 2580 2581 /** 2582 * p2p_set_oper_channel - Set the P2P operating channel 2583 * @p2p: P2P module context from p2p_init() 2584 * @op_reg_class: Operating regulatory class to set 2585 * @op_channel: operating channel to set 2586 * @cfg_op_channel : Whether op_channel is hardcoded in configuration 2587 * Returns: 0 on success, -1 on failure 2588 */ 2589 int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel, 2590 int cfg_op_channel); 2591 2592 /** 2593 * p2p_set_pref_chan - Set P2P preferred channel list 2594 * @p2p: P2P module context from p2p_init() 2595 * @num_pref_chan: Number of entries in pref_chan list 2596 * @pref_chan: Preferred channels or %NULL to remove preferences 2597 * Returns: 0 on success, -1 on failure 2598 */ 2599 int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan, 2600 const struct p2p_channel *pref_chan); 2601 2602 /** 2603 * p2p_set_no_go_freq - Set no GO channel ranges 2604 * @p2p: P2P module context from p2p_init() 2605 * @list: Channel ranges or %NULL to remove restriction 2606 * Returns: 0 on success, -1 on failure 2607 */ 2608 int p2p_set_no_go_freq(struct p2p_data *p2p, 2609 const struct wpa_freq_range_list *list); 2610 2611 /** 2612 * p2p_in_progress - Check whether a P2P operation is progress 2613 * @p2p: P2P module context from p2p_init() 2614 * Returns: 0 if P2P module is idle, 1 if an operation is in progress but not 2615 * in search state, or 2 if search state operation is in progress 2616 */ 2617 int p2p_in_progress(struct p2p_data *p2p); 2618 2619 const char * p2p_wps_method_text(enum p2p_wps_method method); 2620 2621 /** 2622 * p2p_set_config_timeout - Set local config timeouts 2623 * @p2p: P2P module context from p2p_init() 2624 * @go_timeout: Time in 10 ms units it takes to start the GO mode 2625 * @client_timeout: Time in 10 ms units it takes to start the client mode 2626 */ 2627 void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout, 2628 u8 client_timeout); 2629 2630 int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie); 2631 int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie); 2632 int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie); 2633 int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie); 2634 int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie); 2635 int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie); 2636 int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie); 2637 int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie); 2638 int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem); 2639 int p2p_set_wfd_r2_dev_info(struct p2p_data *p2p, const struct wpabuf *elem); 2640 int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem); 2641 int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p, 2642 const struct wpabuf *elem); 2643 struct wpabuf * wifi_display_encaps(struct wpabuf *subelems); 2644 2645 /** 2646 * p2p_set_disc_int - Set min/max discoverable interval for p2p_find 2647 * @p2p: P2P module context from p2p_init() 2648 * @min_disc_int: minDiscoverableInterval (in units of 100 TU); default 1 2649 * @max_disc_int: maxDiscoverableInterval (in units of 100 TU); default 3 2650 * @max_disc_tu: Maximum number of TUs (1.024 ms) for discoverable interval; or 2651 * -1 not to limit 2652 * Returns: 0 on success, or -1 on failure 2653 * 2654 * This function can be used to configure minDiscoverableInterval and 2655 * maxDiscoverableInterval parameters for the Listen state during device 2656 * discovery (p2p_find). A random number of 100 TU units is picked for each 2657 * Listen state iteration from [min_disc_int,max_disc_int] range. 2658 * 2659 * max_disc_tu can be used to further limit the discoverable duration. However, 2660 * it should be noted that use of this parameter is not recommended since it 2661 * would not be compliant with the P2P specification. 2662 */ 2663 int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int, 2664 int max_disc_tu); 2665 2666 /** 2667 * p2p_get_state_txt - Get current P2P state for debug purposes 2668 * @p2p: P2P module context from p2p_init() 2669 * Returns: Name of the current P2P module state 2670 * 2671 * It should be noted that the P2P module state names are internal information 2672 * and subject to change at any point, i.e., this information should be used 2673 * mainly for debugging purposes. 2674 */ 2675 const char * p2p_get_state_txt(struct p2p_data *p2p); 2676 2677 struct wpabuf * p2p_build_nfc_handover_req(struct p2p_data *p2p, 2678 int client_freq, 2679 const u8 *go_dev_addr, 2680 const u8 *ssid, size_t ssid_len); 2681 struct wpabuf * p2p_build_nfc_handover_sel(struct p2p_data *p2p, 2682 int client_freq, 2683 const u8 *go_dev_addr, 2684 const u8 *ssid, size_t ssid_len); 2685 2686 bool p2p_pref_freq_allowed(const struct weighted_pcl *freq_list, bool go); 2687 2688 struct p2p_nfc_params { 2689 int sel; 2690 const u8 *wsc_attr; 2691 size_t wsc_len; 2692 const u8 *p2p_attr; 2693 size_t p2p_len; 2694 2695 enum { 2696 NO_ACTION, JOIN_GROUP, AUTH_JOIN, INIT_GO_NEG, RESP_GO_NEG, 2697 BOTH_GO, PEER_CLIENT 2698 } next_step; 2699 struct p2p_peer_info *peer; 2700 u8 oob_dev_pw[WPS_OOB_PUBKEY_HASH_LEN + 2 + 2701 WPS_OOB_DEVICE_PASSWORD_LEN]; 2702 size_t oob_dev_pw_len; 2703 int go_freq; 2704 u8 go_dev_addr[ETH_ALEN]; 2705 u8 go_ssid[SSID_MAX_LEN]; 2706 size_t go_ssid_len; 2707 }; 2708 2709 int p2p_process_nfc_connection_handover(struct p2p_data *p2p, 2710 struct p2p_nfc_params *params); 2711 2712 void p2p_set_authorized_oob_dev_pw_id(struct p2p_data *p2p, u16 dev_pw_id, 2713 int go_intent, 2714 const u8 *own_interface_addr); 2715 2716 int p2p_set_passphrase_len(struct p2p_data *p2p, unsigned int len); 2717 2718 void p2p_loop_on_known_peers(struct p2p_data *p2p, 2719 void (*peer_callback)(struct p2p_peer_info *peer, 2720 void *user_data), 2721 void *user_data); 2722 2723 void p2p_set_vendor_elems(struct p2p_data *p2p, struct wpabuf **vendor_elem); 2724 2725 void p2p_set_intended_addr(struct p2p_data *p2p, const u8 *intended_addr); 2726 2727 struct p2ps_advertisement * 2728 p2p_service_p2ps_id(struct p2p_data *p2p, u32 adv_id); 2729 int p2p_service_add_asp(struct p2p_data *p2p, int auto_accept, u32 adv_id, 2730 const char *adv_str, u8 svc_state, 2731 u16 config_methods, const char *svc_info, 2732 const u8 *cpt_priority); 2733 int p2p_service_del_asp(struct p2p_data *p2p, u32 adv_id); 2734 void p2p_service_flush_asp(struct p2p_data *p2p); 2735 struct p2ps_advertisement * p2p_get_p2ps_adv_list(struct p2p_data *p2p); 2736 2737 /** 2738 * p2p_expire_peers - Periodic cleanup function to expire peers 2739 * @p2p: P2P module context from p2p_init() 2740 * 2741 * This is a cleanup function that the entity calling p2p_init() is 2742 * expected to call periodically to clean up expired peer entries. 2743 */ 2744 void p2p_expire_peers(struct p2p_data *p2p); 2745 2746 void p2p_set_own_pref_freq_list(struct p2p_data *p2p, 2747 const struct weighted_pcl *pref_freq_list, 2748 unsigned int size); 2749 void p2p_set_override_pref_op_chan(struct p2p_data *p2p, u8 op_class, 2750 u8 chan); 2751 2752 /** 2753 * p2p_group_get_common_freqs - Get the group common frequencies 2754 * @group: P2P group context from p2p_group_init() 2755 * @common_freqs: On return will hold the group common frequencies 2756 * @num: On return will hold the number of group common frequencies 2757 * Returns: 0 on success, -1 otherwise 2758 */ 2759 int p2p_group_get_common_freqs(struct p2p_group *group, int *common_freqs, 2760 unsigned int *num); 2761 2762 struct wpabuf * p2p_build_probe_resp_template(struct p2p_data *p2p, 2763 unsigned int freq); 2764 2765 void p2p_set_6ghz_dev_capab(struct p2p_data *p2p, bool allow_6ghz); 2766 bool is_p2p_6ghz_capable(struct p2p_data *p2p); 2767 bool p2p_is_peer_6ghz_capab(struct p2p_data *p2p, const u8 *addr); 2768 bool p2p_peer_wfd_enabled(struct p2p_data *p2p, const u8 *peer_addr); 2769 bool p2p_wfd_enabled(struct p2p_data *p2p); 2770 bool is_p2p_allow_6ghz(struct p2p_data *p2p); 2771 void set_p2p_allow_6ghz(struct p2p_data *p2p, bool value); 2772 int p2p_remove_6ghz_channels(struct weighted_pcl *pref_freq_list, int size); 2773 int p2p_channel_to_freq(int op_class, int channel); 2774 struct wpabuf * p2p_usd_elems(struct p2p_data *p2p); 2775 void p2p_process_usd_elems(struct p2p_data *p2p, const u8 *ies, u16 ies_len, 2776 const u8 *peer_addr, unsigned int freq); 2777 int p2p_get_dik_id(struct p2p_data *p2p, const u8 *peer); 2778 2779 void p2p_set_pairing_setup(struct p2p_data *p2p, int pairing_setup); 2780 void p2p_set_pairing_cache(struct p2p_data *p2p, int pairing_cache); 2781 void p2p_set_bootstrapmethods(struct p2p_data *p2p, int bootstrap_methods); 2782 void p2p_set_pasn_type(struct p2p_data *p2p, u8 pasn_type); 2783 void p2p_set_comeback_after(struct p2p_data *p2p, int comeback_after); 2784 void p2p_set_reg_info(struct p2p_data *p2p, u8 val); 2785 void p2p_set_twt_power_mgmt(struct p2p_data *p2p, int val); 2786 void p2p_set_dev_addr(struct p2p_data *p2p, const u8 *addr); 2787 void p2p_set_chan_switch_req_enable(struct p2p_data *p2p, bool val); 2788 void p2p_set_invitation_op_freq(struct p2p_data *p2p, int freq); 2789 2790 int p2p_get_listen_freq(struct p2p_data *p2p, const u8 *peer_addr); 2791 int p2p_initiate_pasn_auth(struct p2p_data *p2p, const u8 *addr, int freq); 2792 int p2p_initiate_pasn_verify(struct p2p_data *p2p, const u8 *peer_addr, 2793 int freq, enum p2p_invite_role role, 2794 const u8 *bssid, const u8 *ssid, size_t ssid_len, 2795 unsigned int force_freq, const u8 *go_dev_addr, 2796 unsigned int pref_freq); 2797 int p2p_pasn_auth_rx(struct p2p_data *p2p, const struct ieee80211_mgmt *mgmt, 2798 size_t len, int freq); 2799 int p2p_prepare_data_element(struct p2p_data *p2p, const u8 *peer_addr); 2800 int p2p_parse_data_element(struct p2p_data *p2p, const u8 *data, size_t len); 2801 int p2p_pasn_validate_and_update_pmkid(struct p2p_data *p2p, const u8 *addr, 2802 const u8 *pmkid); 2803 int p2p_pasn_auth_tx_status(struct p2p_data *p2p, const u8 *data, 2804 size_t data_len, bool acked, bool verify); 2805 int p2p_config_sae_password(struct p2p_data *p2p, const char *pw); 2806 void p2p_pasn_pmksa_set_pmk(struct p2p_data *p2p, const u8 *src, const u8 *dst, 2807 const u8 *pmk, size_t pmk_len, const u8 *pmkid); 2808 void p2p_set_store_pasn_ptk(struct p2p_data *p2p, u8 val); 2809 void p2p_pasn_store_ptk(struct p2p_data *p2p, struct wpa_ptk *ptk); 2810 int p2p_pasn_get_ptk(struct p2p_data *p2p, const u8 **buf, size_t *buf_len); 2811 void p2p_usd_service_hash(struct p2p_data *p2p, const char *service_name); 2812 int p2p_get_dira_info(struct p2p_data *p2p, char *buf, size_t buflen); 2813 2814 #endif /* P2P_H */ 2815