1 /* 2 * P2P - Internal definitions for 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_I_H 10 #define P2P_I_H 11 12 #include "utils/list.h" 13 #include "drivers/driver.h" 14 #include "p2p.h" 15 #include "ap/ap_config.h" 16 17 #define P2P_GO_NEG_CNF_MAX_RETRY_COUNT 1 18 19 /* 20 * A threshold (in seconds) to prefer a direct Probe Response frame from a P2P 21 * Device over the P2P Client Info received from a GO. 22 */ 23 #define P2P_DEV_GROUP_CLIENT_RESP_THRESHOLD 1 24 25 enum p2p_role_indication; 26 27 /* 28 * To force Service Instances to fit within a single P2P Tag, MAX_SVC_ADV_LEN 29 * must equal 248 or less. Must have a minimum size of 19. 30 */ 31 #define MAX_SVC_ADV_LEN 600 32 #define MAX_SVC_ADV_IE_LEN (9 + MAX_SVC_ADV_LEN + (5 * (MAX_SVC_ADV_LEN / 240))) 33 34 enum p2p_go_state { 35 UNKNOWN_GO, 36 LOCAL_GO, 37 REMOTE_GO 38 }; 39 40 /** 41 * struct bootstrap_params - P2P Device bootstrap request parameters 42 */ 43 struct p2p_bootstrap_params { 44 /* Bootstrap method */ 45 u16 bootstrap_method; 46 47 /* Status code */ 48 enum p2p_status_code status; 49 50 /* Cookie for comeback */ 51 u8 cookie[50]; 52 53 /* Cookie length */ 54 size_t cookie_len; 55 56 /* Comeback time in TUs after which receiver is requested to retry */ 57 int comeback_after; 58 }; 59 60 /** 61 * struct p2p_device - P2P Device data (internal to P2P module) 62 */ 63 struct p2p_device { 64 struct dl_list list; 65 struct os_reltime last_seen; 66 int listen_freq; 67 int oob_go_neg_freq; 68 enum p2p_wps_method wps_method; 69 u16 oob_pw_id; 70 71 struct p2p_peer_info info; 72 73 /* 74 * If the peer was discovered based on an interface address (e.g., GO 75 * from Beacon/Probe Response), the interface address is stored here. 76 * p2p_device_addr must still be set in such a case to the unique 77 * identifier for the P2P Device. 78 * 79 * This field is also used during P2PS PD to store the intended GO 80 * address of the peer. 81 */ 82 u8 interface_addr[ETH_ALEN]; 83 84 /* 85 * P2P Device Address of the GO in whose group this P2P Device is a 86 * client. 87 */ 88 u8 member_in_go_dev[ETH_ALEN]; 89 90 /* 91 * P2P Interface Address of the GO in whose group this P2P Device is a 92 * client. 93 */ 94 u8 member_in_go_iface[ETH_ALEN]; 95 96 int go_neg_req_sent; 97 enum p2p_go_state go_state; 98 u8 dialog_token; 99 u8 tie_breaker; 100 u8 intended_addr[ETH_ALEN]; 101 102 char country[3]; 103 struct p2p_channels channels; 104 int oper_freq; 105 u8 oper_ssid[SSID_MAX_LEN]; 106 size_t oper_ssid_len; 107 108 /** 109 * req_config_methods - Pending provision discovery methods 110 */ 111 u16 req_config_methods; 112 113 /** 114 * wps_prov_info - Stored provisioning WPS config method 115 * 116 * This is used to store pending WPS config method between Provisioning 117 * Discovery and connection to a running group. 118 */ 119 u16 wps_prov_info; 120 121 #define P2P_DEV_PROBE_REQ_ONLY BIT(0) 122 #define P2P_DEV_REPORTED BIT(1) 123 #define P2P_DEV_NOT_YET_READY BIT(2) 124 #define P2P_DEV_PD_PEER_DISPLAY BIT(5) 125 #define P2P_DEV_PD_PEER_KEYPAD BIT(6) 126 #define P2P_DEV_USER_REJECTED BIT(7) 127 #define P2P_DEV_PEER_WAITING_RESPONSE BIT(8) 128 #define P2P_DEV_PREFER_PERSISTENT_GROUP BIT(9) 129 #define P2P_DEV_WAIT_GO_NEG_RESPONSE BIT(10) 130 #define P2P_DEV_WAIT_GO_NEG_CONFIRM BIT(11) 131 #define P2P_DEV_GROUP_CLIENT_ONLY BIT(12) 132 #define P2P_DEV_FORCE_FREQ BIT(13) 133 #define P2P_DEV_PD_FOR_JOIN BIT(14) 134 #define P2P_DEV_REPORTED_ONCE BIT(15) 135 #define P2P_DEV_PREFER_PERSISTENT_RECONN BIT(16) 136 #define P2P_DEV_PD_BEFORE_GO_NEG BIT(17) 137 #define P2P_DEV_NO_PREF_CHAN BIT(18) 138 #define P2P_DEV_WAIT_INV_REQ_ACK BIT(19) 139 #define P2P_DEV_P2PS_REPORTED BIT(20) 140 #define P2P_DEV_PD_PEER_P2PS BIT(21) 141 #define P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT BIT(22) 142 143 unsigned int flags; 144 145 int status; /* enum p2p_status_code */ 146 unsigned int wait_count; 147 unsigned int connect_reqs; 148 unsigned int invitation_reqs; 149 unsigned int sd_reqs; 150 151 u16 ext_listen_period; 152 u16 ext_listen_interval; 153 154 u8 go_timeout; 155 u8 client_timeout; 156 157 /** 158 * go_neg_conf_sent - Number of GO Negotiation Confirmation retries 159 */ 160 u8 go_neg_conf_sent; 161 162 /** 163 * freq - Frquency on which the GO Negotiation Confirmation is sent 164 */ 165 int go_neg_conf_freq; 166 167 /** 168 * go_neg_conf - GO Negotiation Confirmation frame 169 */ 170 struct wpabuf *go_neg_conf; 171 172 int sd_pending_bcast_queries; 173 bool support_6ghz; 174 175 /* Supports P2P2 */ 176 bool p2p2; 177 178 /* Requested bootstrap method */ 179 u16 req_bootstrap_method; 180 181 /* Bootstrap parameters received from peer */ 182 struct p2p_bootstrap_params *bootstrap_params; 183 184 /* Password for P2P2 GO negotiation */ 185 char password[100]; 186 }; 187 188 struct p2p_sd_query { 189 struct p2p_sd_query *next; 190 u8 peer[ETH_ALEN]; 191 int for_all_peers; 192 int wsd; /* Wi-Fi Display Service Discovery Request */ 193 struct wpabuf *tlvs; 194 }; 195 196 /* P2P Device Identity Key parameters */ 197 struct p2p_id_key { 198 /* AKMP used for DevIK derviation */ 199 int akmp; 200 /* Cipher version type */ 201 int cipher_version; 202 /* Buffer to hold the DevIK */ 203 u8 dik_data[DEVICE_IDENTITY_KEY_MAX_LEN]; 204 /* Length of DevIK */ 205 size_t dik_len; 206 /* Nonce used in DIRA attribute */ 207 u8 dira_nonce[DEVICE_IDENTITY_NONCE_LEN]; 208 /* Length of nonce */ 209 size_t dira_nonce_len; 210 /* Tag computed for nonce using NIK */ 211 u8 dira_tag[DEVICE_IDENTITY_TAG_LEN]; 212 /* Length of tag in octets */ 213 size_t dira_tag_len; 214 }; 215 216 struct p2p_pairing_info { 217 /* P2P device own address */ 218 u8 own_addr[ETH_ALEN]; 219 /* device capability to enable pairing setup */ 220 bool enable_pairing_setup; 221 /* device capability to enable pairing cache */ 222 bool enable_pairing_cache; 223 /* device supported bootstrapping */ 224 u16 supported_bootstrap; 225 /* P2P Device Identity Key info */ 226 struct p2p_id_key dev_ik; 227 }; 228 229 /** 230 * struct p2p_data - P2P module data (internal to P2P module) 231 */ 232 struct p2p_data { 233 /** 234 * cfg - P2P module configuration 235 * 236 * This is included in the same memory allocation with the 237 * struct p2p_data and as such, must not be freed separately. 238 */ 239 struct p2p_config *cfg; 240 241 /** 242 * state - The current P2P state 243 */ 244 enum p2p_state { 245 /** 246 * P2P_IDLE - Idle 247 */ 248 P2P_IDLE, 249 250 /** 251 * P2P_SEARCH - Search (Device Discovery) 252 */ 253 P2P_SEARCH, 254 255 /** 256 * P2P_CONNECT - Trying to start GO Negotiation 257 */ 258 P2P_CONNECT, 259 260 /** 261 * P2P_CONNECT_LISTEN - Listen during GO Negotiation start 262 */ 263 P2P_CONNECT_LISTEN, 264 265 /** 266 * P2P_GO_NEG - In GO Negotiation 267 */ 268 P2P_GO_NEG, 269 270 /** 271 * P2P_LISTEN_ONLY - Listen only 272 */ 273 P2P_LISTEN_ONLY, 274 275 /** 276 * P2P_WAIT_PEER_CONNECT - Waiting peer in List for GO Neg 277 */ 278 P2P_WAIT_PEER_CONNECT, 279 280 /** 281 * P2P_WAIT_PEER_IDLE - Waiting peer idle for GO Neg 282 */ 283 P2P_WAIT_PEER_IDLE, 284 285 /** 286 * P2P_SD_DURING_FIND - Service Discovery during find 287 */ 288 P2P_SD_DURING_FIND, 289 290 /** 291 * P2P_PROVISIONING - Provisioning (during group formation) 292 */ 293 P2P_PROVISIONING, 294 295 /** 296 * P2P_PD_DURING_FIND - Provision Discovery during find 297 */ 298 P2P_PD_DURING_FIND, 299 300 /** 301 * P2P_INVITE - Trying to start Invite 302 */ 303 P2P_INVITE, 304 305 /** 306 * P2P_INVITE_LISTEN - Listen during Invite 307 */ 308 P2P_INVITE_LISTEN, 309 } state; 310 311 /** 312 * min_disc_int - minDiscoverableInterval 313 */ 314 int min_disc_int; 315 316 /** 317 * max_disc_int - maxDiscoverableInterval 318 */ 319 int max_disc_int; 320 321 /** 322 * max_disc_tu - Maximum number of TUs for discoverable interval 323 */ 324 int max_disc_tu; 325 326 /** 327 * devices - List of known P2P Device peers 328 */ 329 struct dl_list devices; 330 331 /** 332 * go_neg_peer - Pointer to GO Negotiation peer 333 */ 334 struct p2p_device *go_neg_peer; 335 336 /** 337 * invite_peer - Pointer to Invite peer 338 */ 339 struct p2p_device *invite_peer; 340 341 /** 342 * last_p2p_find_oper - Pointer to last pre-find operation peer 343 */ 344 struct p2p_device *last_p2p_find_oper; 345 346 const u8 *invite_go_dev_addr; 347 u8 invite_go_dev_addr_buf[ETH_ALEN]; 348 int invite_dev_pw_id; 349 350 unsigned int retry_invite_req:1; 351 unsigned int retry_invite_req_sent:1; 352 353 /** 354 * sd_peer - Pointer to Service Discovery peer 355 */ 356 struct p2p_device *sd_peer; 357 358 /** 359 * sd_query - Pointer to Service Discovery query 360 */ 361 struct p2p_sd_query *sd_query; 362 363 /** 364 * num_p2p_sd_queries - Total number of broadcast SD queries present in 365 * the list 366 */ 367 int num_p2p_sd_queries; 368 369 /** 370 * sd_query_no_ack - The first peer (Dev Addr) that did not ACK SD Query 371 * 372 * This is used to track the first peer that did not ACK an SD Query 373 * within a single P2P Search iteration. All zeros address means no such 374 * peer was yet seen. This information is used to allow a new Listen and 375 * Search phases to be once every pending SD Query has been sent once to 376 * each peer instead of looping all pending attempts continuously until 377 * running out of retry maximums. 378 */ 379 u8 sd_query_no_ack[ETH_ALEN]; 380 381 /* GO Negotiation data */ 382 383 /** 384 * intended_addr - Local Intended P2P Interface Address 385 * 386 * This address is used during group owner negotiation as the Intended 387 * P2P Interface Address and the group interface will be created with 388 * address as the local address in case of successfully completed 389 * negotiation. 390 */ 391 u8 intended_addr[ETH_ALEN]; 392 393 /** 394 * go_intent - Local GO Intent to be used during GO Negotiation 395 */ 396 u8 go_intent; 397 398 /** 399 * next_tie_breaker - Next tie-breaker value to use in GO Negotiation 400 */ 401 u8 next_tie_breaker; 402 403 /** 404 * ssid - Selected SSID for GO Negotiation (if local end will be GO) 405 */ 406 u8 ssid[SSID_MAX_LEN]; 407 408 /** 409 * ssid_len - ssid length in octets 410 */ 411 size_t ssid_len; 412 413 /** 414 * ssid_set - Whether SSID is already set for GO Negotiation 415 */ 416 int ssid_set; 417 418 /** 419 * passphrase - WPA2-Personal passphrase for GO Negotiation (if local end will be GO) 420 */ 421 char passphrase[MAX_PASSPHRASE_LEN + 1]; 422 423 /** 424 * passphrase_set - Whether passphrase is already set for GO Negotiation 425 */ 426 int passphrase_set; 427 428 /** 429 * Regulatory class for own operational channel 430 */ 431 u8 op_reg_class; 432 433 /** 434 * op_channel - Own operational channel 435 */ 436 u8 op_channel; 437 438 /** 439 * channels - Own supported regulatory classes and channels 440 * 441 * List of supposerted channels per regulatory class. The regulatory 442 * classes are defined in IEEE Std 802.11-2007 Annex J and the 443 * numbering of the clases depends on the configured country code. 444 */ 445 struct p2p_channels channels; 446 447 struct wpa_freq_range_list no_go_freq; 448 449 enum p2p_pending_action_state { 450 P2P_NO_PENDING_ACTION, 451 P2P_PENDING_GO_NEG_REQUEST, 452 P2P_PENDING_GO_NEG_RESPONSE, 453 P2P_PENDING_GO_NEG_RESPONSE_FAILURE, 454 P2P_PENDING_GO_NEG_CONFIRM, 455 P2P_PENDING_SD, 456 P2P_PENDING_PD, 457 P2P_PENDING_PD_RESPONSE, 458 P2P_PENDING_INVITATION_REQUEST, 459 P2P_PENDING_INVITATION_RESPONSE, 460 P2P_PENDING_DEV_DISC_REQUEST, 461 P2P_PENDING_DEV_DISC_RESPONSE, 462 P2P_PENDING_GO_DISC_REQ 463 } pending_action_state; 464 465 unsigned int pending_listen_freq; 466 unsigned int pending_listen_sec; 467 unsigned int pending_listen_usec; 468 bool pending_listen_wait_drv; 469 470 u8 dev_capab; 471 472 int in_listen; 473 int drv_in_listen; 474 475 /** 476 * sd_queries - Pending service discovery queries 477 */ 478 struct p2p_sd_query *sd_queries; 479 480 /** 481 * srv_update_indic - Service Update Indicator for local services 482 */ 483 u16 srv_update_indic; 484 485 struct wpabuf *sd_resp; /* Fragmented SD response */ 486 u8 sd_resp_addr[ETH_ALEN]; 487 u8 sd_resp_dialog_token; 488 size_t sd_resp_pos; /* Offset in sd_resp */ 489 u8 sd_frag_id; 490 491 struct wpabuf *sd_rx_resp; /* Reassembled SD response */ 492 u16 sd_rx_update_indic; 493 494 /* P2P Invitation data */ 495 enum p2p_invite_role inv_role; 496 u8 inv_bssid[ETH_ALEN]; 497 int inv_bssid_set; 498 u8 inv_ssid[SSID_MAX_LEN]; 499 size_t inv_ssid_len; 500 u8 inv_sa[ETH_ALEN]; 501 u8 inv_group_bssid[ETH_ALEN]; 502 u8 *inv_group_bssid_ptr; 503 u8 inv_go_dev_addr[ETH_ALEN]; 504 u8 inv_status; 505 int inv_op_freq; 506 int inv_persistent; 507 508 enum p2p_discovery_type find_type; 509 int find_specified_freq; 510 unsigned int last_p2p_find_timeout; 511 u8 last_prog_scan_class; 512 u8 last_prog_scan_chan; 513 unsigned int find_pending_full:1; 514 int p2p_scan_running; 515 enum p2p_after_scan { 516 P2P_AFTER_SCAN_NOTHING, 517 P2P_AFTER_SCAN_LISTEN, 518 P2P_AFTER_SCAN_CONNECT 519 } start_after_scan; 520 u8 after_scan_peer[ETH_ALEN]; 521 unsigned int send_action_in_progress:1; 522 523 /* Requested device types for find/search */ 524 unsigned int num_req_dev_types; 525 u8 *req_dev_types; 526 u8 *find_dev_id; 527 u8 find_dev_id_buf[ETH_ALEN]; 528 529 struct os_reltime find_start; /* time of last p2p_find start */ 530 531 struct p2p_group **groups; 532 size_t num_groups; 533 534 struct p2p_device *pending_client_disc_go; 535 u8 pending_client_disc_addr[ETH_ALEN]; 536 u8 pending_dev_disc_dialog_token; 537 u8 pending_dev_disc_addr[ETH_ALEN]; 538 int pending_dev_disc_freq; 539 unsigned int pending_client_disc_freq; 540 541 int ext_listen_only; 542 unsigned int ext_listen_period; 543 unsigned int ext_listen_interval; 544 unsigned int ext_listen_interval_sec; 545 unsigned int ext_listen_interval_usec; 546 547 u8 peer_filter[ETH_ALEN]; 548 549 int cross_connect; 550 551 int best_freq_24; 552 int best_freq_5; 553 int best_freq_overall; 554 int own_freq_preference; 555 556 /** 557 * wps_vendor_ext - WPS Vendor Extensions to add 558 */ 559 struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT]; 560 561 /* 562 * user_initiated_pd - Whether a PD request is user initiated or not. 563 */ 564 u8 user_initiated_pd; 565 566 /* 567 * Keep track of which peer a given PD request was sent to. 568 * Used to raise a timeout alert in case there is no response. 569 */ 570 u8 pending_pd_devaddr[ETH_ALEN]; 571 572 /* 573 * Retry counter for provision discovery requests when issued 574 * in IDLE state. 575 */ 576 int pd_retries; 577 578 /** 579 * pd_force_freq - Forced frequency for PD retries or 0 to auto-select 580 * 581 * This is is used during PD retries for join-a-group case to use the 582 * correct operating frequency determined from a BSS entry for the GO. 583 */ 584 int pd_force_freq; 585 586 u8 go_timeout; 587 u8 client_timeout; 588 589 /* Extra delay in milliseconds between search iterations */ 590 unsigned int search_delay; 591 int in_search_delay; 592 593 u8 pending_reg_class; 594 u8 pending_channel; 595 u8 pending_channel_forced; 596 597 /* ASP Support */ 598 struct p2ps_advertisement *p2ps_adv_list; 599 struct p2ps_provision *p2ps_prov; 600 u8 wild_card_hash[P2PS_HASH_LEN]; 601 u8 p2ps_seek; 602 u8 p2ps_seek_hash[P2P_MAX_QUERY_HASH * P2PS_HASH_LEN]; 603 u8 p2ps_seek_count; 604 605 #ifdef CONFIG_WIFI_DISPLAY 606 struct wpabuf *wfd_ie_beacon; 607 struct wpabuf *wfd_ie_probe_req; 608 struct wpabuf *wfd_ie_probe_resp; 609 struct wpabuf *wfd_ie_assoc_req; 610 struct wpabuf *wfd_ie_invitation; 611 struct wpabuf *wfd_ie_prov_disc_req; 612 struct wpabuf *wfd_ie_prov_disc_resp; 613 struct wpabuf *wfd_ie_go_neg; 614 struct wpabuf *wfd_dev_info; 615 struct wpabuf *wfd_assoc_bssid; 616 struct wpabuf *wfd_coupled_sink_info; 617 struct wpabuf *wfd_r2_dev_info; 618 #endif /* CONFIG_WIFI_DISPLAY */ 619 620 u16 authorized_oob_dev_pw_id; 621 622 struct wpabuf **vendor_elem; 623 624 struct weighted_pcl pref_freq_list[P2P_MAX_PREF_CHANNELS]; 625 unsigned int num_pref_freq; 626 627 /* Override option for preferred operating channel in GO Negotiation */ 628 u8 override_pref_op_class; 629 u8 override_pref_channel; 630 bool p2p_6ghz_capable; 631 bool include_6ghz; 632 bool allow_6ghz; 633 634 struct p2p_pairing_info *pairing_info; 635 636 /* Pairing initiator PMKSA cache */ 637 struct rsn_pmksa_cache *initiator_pmksa; 638 /* Pairing responder PMKSA cache */ 639 struct rsn_pmksa_cache *responder_pmksa; 640 }; 641 642 /** 643 * struct p2p_message - Parsed P2P message (or P2P IE) 644 */ 645 struct p2p_message { 646 struct wpabuf *p2p_attributes; 647 struct wpabuf *p2p2_attributes; 648 struct wpabuf *wps_attributes; 649 struct wpabuf *wfd_subelems; 650 651 u8 dialog_token; 652 653 const u8 *capability; 654 const u8 *go_intent; 655 const u8 *status; 656 const u8 *listen_channel; 657 const u8 *operating_channel; 658 const u8 *channel_list; 659 u8 channel_list_len; 660 const u8 *config_timeout; 661 const u8 *intended_addr; 662 const u8 *group_bssid; 663 const u8 *invitation_flags; 664 665 const u8 *group_info; 666 size_t group_info_len; 667 668 const u8 *group_id; 669 size_t group_id_len; 670 671 const u8 *device_id; 672 673 const u8 *manageability; 674 675 const u8 *noa; 676 size_t noa_len; 677 678 const u8 *ext_listen_timing; 679 680 const u8 *minor_reason_code; 681 682 const u8 *oob_go_neg_channel; 683 684 /* P2P Device Info */ 685 const u8 *p2p_device_info; 686 size_t p2p_device_info_len; 687 const u8 *p2p_device_addr; 688 const u8 *pri_dev_type; 689 u8 num_sec_dev_types; 690 char device_name[WPS_DEV_NAME_MAX_LEN + 1]; 691 u16 config_methods; 692 693 /* WPS IE */ 694 u16 dev_password_id; 695 int dev_password_id_present; 696 u16 wps_config_methods; 697 const u8 *wps_pri_dev_type; 698 const u8 *wps_sec_dev_type_list; 699 size_t wps_sec_dev_type_list_len; 700 const u8 *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT]; 701 size_t wps_vendor_ext_len[P2P_MAX_WPS_VENDOR_EXT]; 702 const u8 *manufacturer; 703 size_t manufacturer_len; 704 const u8 *model_name; 705 size_t model_name_len; 706 const u8 *model_number; 707 size_t model_number_len; 708 const u8 *serial_number; 709 size_t serial_number_len; 710 const u8 *oob_dev_password; 711 size_t oob_dev_password_len; 712 713 /* DS Parameter Set IE */ 714 const u8 *ds_params; 715 716 /* SSID IE */ 717 const u8 *ssid; 718 719 /* P2PS */ 720 u8 service_hash_count; 721 const u8 *service_hash; 722 723 const u8 *session_info; 724 size_t session_info_len; 725 726 const u8 *conn_cap; 727 728 const u8 *adv_id; 729 const u8 *adv_mac; 730 731 const u8 *adv_service_instance; 732 size_t adv_service_instance_len; 733 734 const u8 *session_id; 735 const u8 *session_mac; 736 737 const u8 *feature_cap; 738 size_t feature_cap_len; 739 740 const u8 *persistent_dev; 741 const u8 *persistent_ssid; 742 size_t persistent_ssid_len; 743 744 const u8 *pref_freq_list; 745 size_t pref_freq_list_len; 746 747 const u8 *pcea_info; 748 size_t pcea_info_len; 749 750 const u8 *pbma_info; 751 size_t pbma_info_len; 752 753 const u8 *action_frame_wrapper; 754 size_t action_frame_wrapper_len; 755 756 const u8 *dira; 757 size_t dira_len; 758 759 const u8 *wlan_ap_info; 760 size_t wlan_ap_info_len; 761 }; 762 763 764 #define P2P_MAX_GROUP_ENTRIES 50 765 766 struct p2p_group_info { 767 unsigned int num_clients; 768 struct p2p_client_info { 769 const u8 *p2p_device_addr; 770 const u8 *p2p_interface_addr; 771 u8 dev_capab; 772 u16 config_methods; 773 const u8 *pri_dev_type; 774 u8 num_sec_dev_types; 775 const u8 *sec_dev_types; 776 const char *dev_name; 777 size_t dev_name_len; 778 } client[P2P_MAX_GROUP_ENTRIES]; 779 }; 780 781 782 /* p2p_utils.c */ 783 int p2p_random(char *buf, size_t len); 784 int p2p_freq_to_channel(unsigned int freq, u8 *op_class, u8 *channel); 785 void p2p_channels_intersect(const struct p2p_channels *a, 786 const struct p2p_channels *b, 787 struct p2p_channels *res); 788 void p2p_channels_union_inplace(struct p2p_channels *res, 789 const struct p2p_channels *b); 790 void p2p_channels_union(const struct p2p_channels *a, 791 const struct p2p_channels *b, 792 struct p2p_channels *res); 793 void p2p_channels_remove_freqs(struct p2p_channels *chan, 794 const struct wpa_freq_range_list *list); 795 int p2p_channels_includes(const struct p2p_channels *channels, u8 reg_class, 796 u8 channel); 797 void p2p_channels_dump(struct p2p_data *p2p, const char *title, 798 const struct p2p_channels *chan); 799 int p2p_channel_select(struct p2p_channels *chans, const int *classes, 800 u8 *op_class, u8 *op_channel); 801 int p2p_channel_random_social(struct p2p_channels *chans, u8 *op_class, 802 u8 *op_channel, 803 struct wpa_freq_range_list *avoid_list, 804 struct wpa_freq_range_list *disallow_list); 805 void p2p_copy_channels(struct p2p_channels *dst, const struct p2p_channels *src, 806 bool allow_6ghz); 807 808 /* p2p_parse.c */ 809 void p2p_copy_filter_devname(char *dst, size_t dst_len, 810 const void *src, size_t src_len); 811 int p2p_parse_p2p_ie(const struct wpabuf *buf, struct p2p_message *msg); 812 int p2p_parse_ies(const u8 *data, size_t len, struct p2p_message *msg); 813 int p2p_parse(const u8 *data, size_t len, struct p2p_message *msg); 814 int p2p_parse_ies_separate(const u8 *wsc, size_t wsc_len, const u8 *p2p, 815 size_t p2p_len, struct p2p_message *msg); 816 void p2p_parse_free(struct p2p_message *msg); 817 int p2p_attr_text(struct wpabuf *data, char *buf, char *end); 818 int p2p_group_info_parse(const u8 *gi, size_t gi_len, 819 struct p2p_group_info *info); 820 821 /* p2p_build.c */ 822 823 struct p2p_noa_desc { 824 u8 count_type; 825 u32 duration; 826 u32 interval; 827 u32 start_time; 828 }; 829 830 /* p2p_group.c */ 831 const u8 * p2p_group_get_interface_addr(struct p2p_group *group); 832 u8 p2p_group_presence_req(struct p2p_group *group, 833 const u8 *client_interface_addr, 834 const u8 *noa, size_t noa_len); 835 int p2p_group_is_group_id_match(struct p2p_group *group, const u8 *group_id, 836 size_t group_id_len); 837 void p2p_group_update_ies(struct p2p_group *group); 838 void p2p_group_force_beacon_update_ies(struct p2p_group *group); 839 struct wpabuf * p2p_group_get_wfd_ie(struct p2p_group *g); 840 void p2p_buf_add_group_info(struct p2p_group *group, struct wpabuf *buf, 841 int max_clients); 842 void p2p_group_buf_add_id(struct p2p_group *group, struct wpabuf *buf); 843 int p2p_group_get_freq(struct p2p_group *group); 844 845 846 void p2p_buf_add_action_hdr(struct wpabuf *buf, u8 subtype, u8 dialog_token); 847 void p2p_buf_add_public_action_hdr(struct wpabuf *buf, u8 subtype, 848 u8 dialog_token); 849 u8 * p2p_buf_add_ie_hdr(struct wpabuf *buf); 850 u8 * p2p_buf_add_p2p2_ie_hdr(struct wpabuf *buf); 851 void p2p_buf_add_status(struct wpabuf *buf, u8 status); 852 void p2p_buf_add_device_info(struct wpabuf *buf, struct p2p_data *p2p, 853 struct p2p_device *peer); 854 void p2p_buf_add_device_id(struct wpabuf *buf, const u8 *dev_addr); 855 void p2p_buf_update_ie_hdr(struct wpabuf *buf, u8 *len); 856 void p2p_buf_add_capability(struct wpabuf *buf, u8 dev_capab, u8 group_capab); 857 void p2p_buf_add_go_intent(struct wpabuf *buf, u8 go_intent); 858 void p2p_buf_add_listen_channel(struct wpabuf *buf, const char *country, 859 u8 reg_class, u8 channel); 860 void p2p_buf_add_operating_channel(struct wpabuf *buf, const char *country, 861 u8 reg_class, u8 channel); 862 void p2p_buf_add_channel_list(struct wpabuf *buf, const char *country, 863 struct p2p_channels *chan, bool is_6ghz_capab); 864 void p2p_buf_add_config_timeout(struct wpabuf *buf, u8 go_timeout, 865 u8 client_timeout); 866 void p2p_buf_add_intended_addr(struct wpabuf *buf, const u8 *interface_addr); 867 void p2p_buf_add_group_bssid(struct wpabuf *buf, const u8 *bssid); 868 void p2p_buf_add_group_id(struct wpabuf *buf, const u8 *dev_addr, 869 const u8 *ssid, size_t ssid_len); 870 void p2p_buf_add_invitation_flags(struct wpabuf *buf, u8 flags); 871 void p2p_buf_add_noa(struct wpabuf *buf, u8 noa_index, u8 opp_ps, u8 ctwindow, 872 struct p2p_noa_desc *desc1, struct p2p_noa_desc *desc2); 873 void p2p_buf_add_ext_listen_timing(struct wpabuf *buf, u16 period, 874 u16 interval); 875 void p2p_buf_add_p2p_interface(struct wpabuf *buf, struct p2p_data *p2p); 876 void p2p_buf_add_oob_go_neg_channel(struct wpabuf *buf, const char *country, 877 u8 oper_class, u8 channel, 878 enum p2p_role_indication role); 879 void p2p_buf_add_service_hash(struct wpabuf *buf, struct p2p_data *p2p); 880 void p2p_buf_add_session_info(struct wpabuf *buf, const char *info); 881 void p2p_buf_add_connection_capability(struct wpabuf *buf, u8 connection_cap); 882 void p2p_buf_add_advertisement_id(struct wpabuf *buf, u32 id, const u8 *mac); 883 void p2p_buf_add_service_instance(struct wpabuf *buf, struct p2p_data *p2p, 884 u8 count, const u8 *hash, 885 struct p2ps_advertisement *adv_list); 886 void p2p_buf_add_session_id(struct wpabuf *buf, u32 id, const u8 *mac); 887 void p2p_buf_add_feature_capability(struct wpabuf *buf, u16 len, 888 const u8 *mask); 889 void p2p_buf_add_persistent_group_info(struct wpabuf *buf, const u8 *dev_addr, 890 const u8 *ssid, size_t ssid_len); 891 void p2p_buf_add_pcea(struct wpabuf *buf, struct p2p_data *p2p); 892 void p2p_buf_add_pbma(struct wpabuf *buf, u16 bootstrap, const u8 *cookie, 893 size_t cookie_len, int comeback_after); 894 void p2p_buf_add_dira(struct wpabuf *buf, struct p2p_data *p2p); 895 int p2p_build_wps_ie(struct p2p_data *p2p, struct wpabuf *buf, int pw_id, 896 int all_attr); 897 void p2p_buf_add_pref_channel_list(struct wpabuf *buf, 898 const struct weighted_pcl *pref_freq_list, 899 unsigned int size); 900 struct wpabuf * p2p_encaps_ie(const struct wpabuf *subelems, u32 ie_type); 901 902 /* p2p_sd.c */ 903 struct p2p_sd_query * p2p_pending_sd_req(struct p2p_data *p2p, 904 struct p2p_device *dev); 905 void p2p_free_sd_queries(struct p2p_data *p2p); 906 void p2p_rx_gas_initial_req(struct p2p_data *p2p, const u8 *sa, 907 const u8 *data, size_t len, int rx_freq); 908 void p2p_rx_gas_initial_resp(struct p2p_data *p2p, const u8 *sa, 909 const u8 *data, size_t len, int rx_freq); 910 void p2p_rx_gas_comeback_req(struct p2p_data *p2p, const u8 *sa, 911 const u8 *data, size_t len, int rx_freq); 912 void p2p_rx_gas_comeback_resp(struct p2p_data *p2p, const u8 *sa, 913 const u8 *data, size_t len, int rx_freq); 914 int p2p_start_sd(struct p2p_data *p2p, struct p2p_device *dev); 915 916 /* p2p_go_neg.c */ 917 struct wpabuf * p2p_build_go_neg_req(struct p2p_data *p2p, 918 struct p2p_device *peer); 919 int p2p_peer_channels_check(struct p2p_data *p2p, struct p2p_channels *own, 920 struct p2p_device *dev, 921 const u8 *channel_list, size_t channel_list_len); 922 void p2p_handle_go_neg_req(struct p2p_data *p2p, const u8 *sa, const u8 *data, 923 size_t len, int rx_freq); 924 void p2p_handle_go_neg_resp(struct p2p_data *p2p, const u8 *sa, const u8 *data, 925 size_t len, int rx_freq); 926 void p2p_handle_go_neg_conf(struct p2p_data *p2p, const u8 *sa, const u8 *data, 927 size_t len, bool p2p2); 928 struct wpabuf * p2p_process_go_neg_req(struct p2p_data *p2p, const u8 *sa, 929 const u8 *data, size_t len, int rx_freq, 930 bool p2p2); 931 struct wpabuf * p2p_process_go_neg_resp(struct p2p_data *p2p, const u8 *sa, 932 const u8 *data, size_t len, 933 int rx_freq, bool p2p2); 934 int p2p_connect_send(struct p2p_data *p2p, struct p2p_device *dev); 935 u16 p2p_wps_method_pw_id(enum p2p_wps_method wps_method); 936 void p2p_reselect_channel(struct p2p_data *p2p, 937 struct p2p_channels *intersection); 938 void p2p_check_pref_chan(struct p2p_data *p2p, int go, 939 struct p2p_device *dev, struct p2p_message *msg); 940 941 /* p2p_pd.c */ 942 void p2p_handle_prov_disc_req(struct p2p_data *p2p, const u8 *sa, 943 const u8 *data, size_t len, int rx_freq); 944 void p2p_handle_prov_disc_resp(struct p2p_data *p2p, const u8 *sa, 945 const u8 *data, size_t len, int rx_freq); 946 int p2p_send_prov_disc_req(struct p2p_data *p2p, struct p2p_device *dev, 947 int join, int force_freq); 948 void p2p_reset_pending_pd(struct p2p_data *p2p); 949 void p2ps_prov_free(struct p2p_data *p2p); 950 void p2p_process_pcea(struct p2p_data *p2p, struct p2p_message *msg, 951 struct p2p_device *dev); 952 953 /* p2p_invitation.c */ 954 void p2p_handle_invitation_req(struct p2p_data *p2p, const u8 *sa, 955 const u8 *data, size_t len, int rx_freq); 956 void p2p_handle_invitation_resp(struct p2p_data *p2p, const u8 *sa, 957 const u8 *data, size_t len); 958 struct wpabuf * p2p_process_invitation_req(struct p2p_data *p2p, const u8 *sa, 959 const u8 *data, size_t len, 960 int rx_freq); 961 void p2p_process_invitation_resp(struct p2p_data *p2p, const u8 *sa, 962 const u8 *data, size_t len); 963 int p2p_invite_send(struct p2p_data *p2p, struct p2p_device *dev, 964 const u8 *go_dev_addr, int dev_pw_id); 965 void p2p_invitation_req_cb(struct p2p_data *p2p, int success); 966 void p2p_invitation_resp_cb(struct p2p_data *p2p, int success); 967 968 /* p2p_dev_disc.c */ 969 void p2p_process_dev_disc_req(struct p2p_data *p2p, const u8 *sa, 970 const u8 *data, size_t len, int rx_freq); 971 void p2p_dev_disc_req_cb(struct p2p_data *p2p, int success); 972 int p2p_send_dev_disc_req(struct p2p_data *p2p, struct p2p_device *dev); 973 void p2p_dev_disc_resp_cb(struct p2p_data *p2p, int success); 974 void p2p_process_dev_disc_resp(struct p2p_data *p2p, const u8 *sa, 975 const u8 *data, size_t len); 976 void p2p_go_disc_req_cb(struct p2p_data *p2p, int success); 977 void p2p_process_go_disc_req(struct p2p_data *p2p, const u8 *da, const u8 *sa, 978 const u8 *data, size_t len, int rx_freq); 979 980 /* p2p.c */ 981 void p2p_set_state(struct p2p_data *p2p, int new_state); 982 void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, 983 unsigned int usec); 984 void p2p_clear_timeout(struct p2p_data *p2p); 985 void p2p_continue_find(struct p2p_data *p2p); 986 struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p, 987 const u8 *addr, 988 struct p2p_message *msg); 989 void p2p_update_peer_6ghz_capab(struct p2p_device *dev, 990 const struct p2p_message *msg); 991 void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr, 992 struct p2p_device *dev, struct p2p_message *msg); 993 int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq, 994 struct os_reltime *rx_time, int level, const u8 *ies, 995 size_t ies_len, int scan_res); 996 struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr); 997 struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p, 998 const u8 *addr); 999 void p2p_go_neg_failed(struct p2p_data *p2p, int status); 1000 void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer); 1001 int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps); 1002 int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[], 1003 size_t num_req_dev_type); 1004 struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p, 1005 const u8 *query_hash, 1006 u8 query_count); 1007 void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len); 1008 int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst, 1009 const u8 *src, const u8 *bssid, const u8 *buf, 1010 size_t len, unsigned int wait_time); 1011 void p2p_stop_listen_for_freq(struct p2p_data *p2p, int freq); 1012 int p2p_prepare_channel(struct p2p_data *p2p, struct p2p_device *dev, 1013 unsigned int force_freq, unsigned int pref_freq, 1014 int go); 1015 void p2p_go_neg_wait_timeout(void *eloop_ctx, void *timeout_ctx); 1016 int p2p_go_select_channel(struct p2p_data *p2p, struct p2p_device *dev, 1017 u8 *status); 1018 void p2p_pref_channel_filter(const struct p2p_channels *a, 1019 const struct weighted_pcl *freq_list, 1020 unsigned int num_channels, 1021 struct p2p_channels *res, bool go); 1022 1023 void p2p_sd_query_cb(struct p2p_data *p2p, int success); 1024 1025 void p2p_dbg(struct p2p_data *p2p, const char *fmt, ...) 1026 PRINTF_FORMAT(2, 3); 1027 void p2p_info(struct p2p_data *p2p, const char *fmt, ...) 1028 PRINTF_FORMAT(2, 3); 1029 void p2p_err(struct p2p_data *p2p, const char *fmt, ...) 1030 PRINTF_FORMAT(2, 3); 1031 1032 #endif /* P2P_I_H */ 1033