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 "p2p.h" 14 15#define P2P_GO_NEG_CNF_MAX_RETRY_COUNT 1 16 17/* 18 * A threshold (in seconds) to prefer a direct Probe Response frame from a P2P 19 * Device over the P2P Client Info received from a GO. 20 */ 21#define P2P_DEV_GROUP_CLIENT_RESP_THRESHOLD 1 22 23enum p2p_role_indication; 24 25/* 26 * To force Service Instances to fit within a single P2P Tag, MAX_SVC_ADV_LEN 27 * must equal 248 or less. Must have a minimum size of 19. 28 */ 29#define MAX_SVC_ADV_LEN 600 30#define MAX_SVC_ADV_IE_LEN (9 + MAX_SVC_ADV_LEN + (5 * (MAX_SVC_ADV_LEN / 240))) 31 32enum p2p_go_state { 33 UNKNOWN_GO, 34 LOCAL_GO, 35 REMOTE_GO 36}; 37 38/** 39 * struct p2p_device - P2P Device data (internal to P2P module) 40 */ 41struct p2p_device { 42 struct dl_list list; 43 struct os_reltime last_seen; 44 int listen_freq; 45 int oob_go_neg_freq; 46 enum p2p_wps_method wps_method; 47 u16 oob_pw_id; 48 49 struct p2p_peer_info info; 50 51 /* 52 * If the peer was discovered based on an interface address (e.g., GO 53 * from Beacon/Probe Response), the interface address is stored here. 54 * p2p_device_addr must still be set in such a case to the unique 55 * identifier for the P2P Device. 56 * 57 * This field is also used during P2PS PD to store the intended GO 58 * address of the peer. 59 */ 60 u8 interface_addr[ETH_ALEN]; 61 62 /* 63 * P2P Device Address of the GO in whose group this P2P Device is a 64 * client. 65 */ 66 u8 member_in_go_dev[ETH_ALEN]; 67 68 /* 69 * P2P Interface Address of the GO in whose group this P2P Device is a 70 * client. 71 */ 72 u8 member_in_go_iface[ETH_ALEN]; 73 74 int go_neg_req_sent; 75 enum p2p_go_state go_state; 76 u8 dialog_token; 77 u8 tie_breaker; 78 u8 intended_addr[ETH_ALEN]; 79 80 char country[3]; 81 struct p2p_channels channels; 82 int oper_freq; 83 u8 oper_ssid[SSID_MAX_LEN]; 84 size_t oper_ssid_len; 85 86 /** 87 * req_config_methods - Pending provision discovery methods 88 */ 89 u16 req_config_methods; 90 91 /** 92 * wps_prov_info - Stored provisioning WPS config method 93 * 94 * This is used to store pending WPS config method between Provisioning 95 * Discovery and connection to a running group. 96 */ 97 u16 wps_prov_info; 98 99#define P2P_DEV_PROBE_REQ_ONLY BIT(0) 100#define P2P_DEV_REPORTED BIT(1) 101#define P2P_DEV_NOT_YET_READY BIT(2) 102#define P2P_DEV_PD_PEER_DISPLAY BIT(5) 103#define P2P_DEV_PD_PEER_KEYPAD BIT(6) 104#define P2P_DEV_USER_REJECTED BIT(7) 105#define P2P_DEV_PEER_WAITING_RESPONSE BIT(8) 106#define P2P_DEV_PREFER_PERSISTENT_GROUP BIT(9) 107#define P2P_DEV_WAIT_GO_NEG_RESPONSE BIT(10) 108#define P2P_DEV_WAIT_GO_NEG_CONFIRM BIT(11) 109#define P2P_DEV_GROUP_CLIENT_ONLY BIT(12) 110#define P2P_DEV_FORCE_FREQ BIT(13) 111#define P2P_DEV_PD_FOR_JOIN BIT(14) 112#define P2P_DEV_REPORTED_ONCE BIT(15) 113#define P2P_DEV_PREFER_PERSISTENT_RECONN BIT(16) 114#define P2P_DEV_PD_BEFORE_GO_NEG BIT(17) 115#define P2P_DEV_NO_PREF_CHAN BIT(18) 116#define P2P_DEV_WAIT_INV_REQ_ACK BIT(19) 117#define P2P_DEV_P2PS_REPORTED BIT(20) 118#define P2P_DEV_PD_PEER_P2PS BIT(21) 119#define P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT BIT(22) 120 121 unsigned int flags; 122 123 int status; /* enum p2p_status_code */ 124 unsigned int wait_count; 125 unsigned int connect_reqs; 126 unsigned int invitation_reqs; 127 unsigned int sd_reqs; 128 129 u16 ext_listen_period; 130 u16 ext_listen_interval; 131 132 u8 go_timeout; 133 u8 client_timeout; 134 135 /** 136 * go_neg_conf_sent - Number of GO Negotiation Confirmation retries 137 */ 138 u8 go_neg_conf_sent; 139 140 /** 141 * freq - Frquency on which the GO Negotiation Confirmation is sent 142 */ 143 int go_neg_conf_freq; 144 145 /** 146 * go_neg_conf - GO Negotiation Confirmation frame 147 */ 148 struct wpabuf *go_neg_conf; 149 150 int sd_pending_bcast_queries; 151}; 152 153struct p2p_sd_query { 154 struct p2p_sd_query *next; 155 u8 peer[ETH_ALEN]; 156 int for_all_peers; 157 int wsd; /* Wi-Fi Display Service Discovery Request */ 158 struct wpabuf *tlvs; 159}; 160 161struct p2p_pending_action_tx { 162 unsigned int freq; 163 u8 dst[ETH_ALEN]; 164 u8 src[ETH_ALEN]; 165 u8 bssid[ETH_ALEN]; 166 size_t len; 167 unsigned int wait_time; 168 /* Followed by len octets of the frame */ 169}; 170 171/** 172 * struct p2p_data - P2P module data (internal to P2P module) 173 */ 174struct p2p_data { 175 /** 176 * cfg - P2P module configuration 177 * 178 * This is included in the same memory allocation with the 179 * struct p2p_data and as such, must not be freed separately. 180 */ 181 struct p2p_config *cfg; 182 183 /** 184 * state - The current P2P state 185 */ 186 enum p2p_state { 187 /** 188 * P2P_IDLE - Idle 189 */ 190 P2P_IDLE, 191 192 /** 193 * P2P_SEARCH - Search (Device Discovery) 194 */ 195 P2P_SEARCH, 196 197 /** 198 * P2P_CONNECT - Trying to start GO Negotiation 199 */ 200 P2P_CONNECT, 201 202 /** 203 * P2P_CONNECT_LISTEN - Listen during GO Negotiation start 204 */ 205 P2P_CONNECT_LISTEN, 206 207 /** 208 * P2P_GO_NEG - In GO Negotiation 209 */ 210 P2P_GO_NEG, 211 212 /** 213 * P2P_LISTEN_ONLY - Listen only 214 */ 215 P2P_LISTEN_ONLY, 216 217 /** 218 * P2P_WAIT_PEER_CONNECT - Waiting peer in List for GO Neg 219 */ 220 P2P_WAIT_PEER_CONNECT, 221 222 /** 223 * P2P_WAIT_PEER_IDLE - Waiting peer idle for GO Neg 224 */ 225 P2P_WAIT_PEER_IDLE, 226 227 /** 228 * P2P_SD_DURING_FIND - Service Discovery during find 229 */ 230 P2P_SD_DURING_FIND, 231 232 /** 233 * P2P_PROVISIONING - Provisioning (during group formation) 234 */ 235 P2P_PROVISIONING, 236 237 /** 238 * P2P_PD_DURING_FIND - Provision Discovery during find 239 */ 240 P2P_PD_DURING_FIND, 241 242 /** 243 * P2P_INVITE - Trying to start Invite 244 */ 245 P2P_INVITE, 246 247 /** 248 * P2P_INVITE_LISTEN - Listen during Invite 249 */ 250 P2P_INVITE_LISTEN, 251 } state; 252 253 /** 254 * min_disc_int - minDiscoverableInterval 255 */ 256 int min_disc_int; 257 258 /** 259 * max_disc_int - maxDiscoverableInterval 260 */ 261 int max_disc_int; 262 263 /** 264 * max_disc_tu - Maximum number of TUs for discoverable interval 265 */ 266 int max_disc_tu; 267 268 /** 269 * devices - List of known P2P Device peers 270 */ 271 struct dl_list devices; 272 273 /** 274 * go_neg_peer - Pointer to GO Negotiation peer 275 */ 276 struct p2p_device *go_neg_peer; 277 278 /** 279 * invite_peer - Pointer to Invite peer 280 */ 281 struct p2p_device *invite_peer; 282 283 /** 284 * last_p2p_find_oper - Pointer to last pre-find operation peer 285 */ 286 struct p2p_device *last_p2p_find_oper; 287 288 const u8 *invite_go_dev_addr; 289 u8 invite_go_dev_addr_buf[ETH_ALEN]; 290 int invite_dev_pw_id; 291 292 unsigned int retry_invite_req:1; 293 unsigned int retry_invite_req_sent:1; 294 295 /** 296 * sd_peer - Pointer to Service Discovery peer 297 */ 298 struct p2p_device *sd_peer; 299 300 /** 301 * sd_query - Pointer to Service Discovery query 302 */ 303 struct p2p_sd_query *sd_query; 304 305 /** 306 * num_p2p_sd_queries - Total number of broadcast SD queries present in 307 * the list 308 */ 309 int num_p2p_sd_queries; 310 311 /** 312 * sd_query_no_ack - The first peer (Dev Addr) that did not ACK SD Query 313 * 314 * This is used to track the first peer that did not ACK an SD Query 315 * within a single P2P Search iteration. All zeros address means no such 316 * peer was yet seen. This information is used to allow a new Listen and 317 * Search phases to be once every pending SD Query has been sent once to 318 * each peer instead of looping all pending attempts continuously until 319 * running out of retry maximums. 320 */ 321 u8 sd_query_no_ack[ETH_ALEN]; 322 323 /* GO Negotiation data */ 324 325 /** 326 * intended_addr - Local Intended P2P Interface Address 327 * 328 * This address is used during group owner negotiation as the Intended 329 * P2P Interface Address and the group interface will be created with 330 * address as the local address in case of successfully completed 331 * negotiation. 332 */ 333 u8 intended_addr[ETH_ALEN]; 334 335 /** 336 * go_intent - Local GO Intent to be used during GO Negotiation 337 */ 338 u8 go_intent; 339 340 /** 341 * next_tie_breaker - Next tie-breaker value to use in GO Negotiation 342 */ 343 u8 next_tie_breaker; 344 345 /** 346 * ssid - Selected SSID for GO Negotiation (if local end will be GO) 347 */ 348 u8 ssid[SSID_MAX_LEN]; 349 350 /** 351 * ssid_len - ssid length in octets 352 */ 353 size_t ssid_len; 354 355 /** 356 * ssid_set - Whether SSID is already set for GO Negotiation 357 */ 358 int ssid_set; 359 360 /** 361 * Regulatory class for own operational channel 362 */ 363 u8 op_reg_class; 364 365 /** 366 * op_channel - Own operational channel 367 */ 368 u8 op_channel; 369 370 /** 371 * channels - Own supported regulatory classes and channels 372 * 373 * List of supposerted channels per regulatory class. The regulatory 374 * classes are defined in IEEE Std 802.11-2007 Annex J and the 375 * numbering of the clases depends on the configured country code. 376 */ 377 struct p2p_channels channels; 378 379 struct wpa_freq_range_list no_go_freq; 380 381 enum p2p_pending_action_state { 382 P2P_NO_PENDING_ACTION, 383 P2P_PENDING_GO_NEG_REQUEST, 384 P2P_PENDING_GO_NEG_RESPONSE, 385 P2P_PENDING_GO_NEG_RESPONSE_FAILURE, 386 P2P_PENDING_GO_NEG_CONFIRM, 387 P2P_PENDING_SD, 388 P2P_PENDING_PD, 389 P2P_PENDING_PD_RESPONSE, 390 P2P_PENDING_INVITATION_REQUEST, 391 P2P_PENDING_INVITATION_RESPONSE, 392 P2P_PENDING_DEV_DISC_REQUEST, 393 P2P_PENDING_DEV_DISC_RESPONSE, 394 P2P_PENDING_GO_DISC_REQ 395 } pending_action_state; 396 397 unsigned int pending_listen_freq; 398 unsigned int pending_listen_sec; 399 unsigned int pending_listen_usec; 400 401 u8 dev_capab; 402 403 int in_listen; 404 int drv_in_listen; 405 406 /** 407 * sd_queries - Pending service discovery queries 408 */ 409 struct p2p_sd_query *sd_queries; 410 411 /** 412 * srv_update_indic - Service Update Indicator for local services 413 */ 414 u16 srv_update_indic; 415 416 struct wpabuf *sd_resp; /* Fragmented SD response */ 417 u8 sd_resp_addr[ETH_ALEN]; 418 u8 sd_resp_dialog_token; 419 size_t sd_resp_pos; /* Offset in sd_resp */ 420 u8 sd_frag_id; 421 422 struct wpabuf *sd_rx_resp; /* Reassembled SD response */ 423 u16 sd_rx_update_indic; 424 425 /* P2P Invitation data */ 426 enum p2p_invite_role inv_role; 427 u8 inv_bssid[ETH_ALEN]; 428 int inv_bssid_set; 429 u8 inv_ssid[SSID_MAX_LEN]; 430 size_t inv_ssid_len; 431 u8 inv_sa[ETH_ALEN]; 432 u8 inv_group_bssid[ETH_ALEN]; 433 u8 *inv_group_bssid_ptr; 434 u8 inv_go_dev_addr[ETH_ALEN]; 435 u8 inv_status; 436 int inv_op_freq; 437 int inv_persistent; 438 439 enum p2p_discovery_type find_type; 440 unsigned int last_p2p_find_timeout; 441 u8 last_prog_scan_class; 442 u8 last_prog_scan_chan; 443 int p2p_scan_running; 444 enum p2p_after_scan { 445 P2P_AFTER_SCAN_NOTHING, 446 P2P_AFTER_SCAN_LISTEN, 447 P2P_AFTER_SCAN_CONNECT 448 } start_after_scan; 449 u8 after_scan_peer[ETH_ALEN]; 450 struct p2p_pending_action_tx *after_scan_tx; 451 unsigned int after_scan_tx_in_progress:1; 452 unsigned int send_action_in_progress:1; 453 454 /* Requested device types for find/search */ 455 unsigned int num_req_dev_types; 456 u8 *req_dev_types; 457 u8 *find_dev_id; 458 u8 find_dev_id_buf[ETH_ALEN]; 459 460 struct os_reltime find_start; /* time of last p2p_find start */ 461 462 struct p2p_group **groups; 463 size_t num_groups; 464 465 struct p2p_device *pending_client_disc_go; 466 u8 pending_client_disc_addr[ETH_ALEN]; 467 u8 pending_dev_disc_dialog_token; 468 u8 pending_dev_disc_addr[ETH_ALEN]; 469 int pending_dev_disc_freq; 470 unsigned int pending_client_disc_freq; 471 472 int ext_listen_only; 473 unsigned int ext_listen_period; 474 unsigned int ext_listen_interval; 475 unsigned int ext_listen_interval_sec; 476 unsigned int ext_listen_interval_usec; 477 478 u8 peer_filter[ETH_ALEN]; 479 480 int cross_connect; 481 482 int best_freq_24; 483 int best_freq_5; 484 int best_freq_overall; 485 int own_freq_preference; 486 487 /** 488 * wps_vendor_ext - WPS Vendor Extensions to add 489 */ 490 struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT]; 491 492 /* 493 * user_initiated_pd - Whether a PD request is user initiated or not. 494 */ 495 u8 user_initiated_pd; 496 497 /* 498 * Keep track of which peer a given PD request was sent to. 499 * Used to raise a timeout alert in case there is no response. 500 */ 501 u8 pending_pd_devaddr[ETH_ALEN]; 502 503 /* 504 * Retry counter for provision discovery requests when issued 505 * in IDLE state. 506 */ 507 int pd_retries; 508 509 /** 510 * pd_force_freq - Forced frequency for PD retries or 0 to auto-select 511 * 512 * This is is used during PD retries for join-a-group case to use the 513 * correct operating frequency determined from a BSS entry for the GO. 514 */ 515 int pd_force_freq; 516 517 u8 go_timeout; 518 u8 client_timeout; 519 520 /* Extra delay in milliseconds between search iterations */ 521 unsigned int search_delay; 522 int in_search_delay; 523 524 u8 pending_reg_class; 525 u8 pending_channel; 526 u8 pending_channel_forced; 527 528 /* ASP Support */ 529 struct p2ps_advertisement *p2ps_adv_list; 530 struct p2ps_provision *p2ps_prov; 531 u8 wild_card_hash[P2PS_HASH_LEN]; 532 u8 p2ps_seek; 533 u8 p2ps_seek_hash[P2P_MAX_QUERY_HASH * P2PS_HASH_LEN]; 534 u8 p2ps_seek_count; 535 536#ifdef CONFIG_WIFI_DISPLAY 537 struct wpabuf *wfd_ie_beacon; 538 struct wpabuf *wfd_ie_probe_req; 539 struct wpabuf *wfd_ie_probe_resp; 540 struct wpabuf *wfd_ie_assoc_req; 541 struct wpabuf *wfd_ie_invitation; 542 struct wpabuf *wfd_ie_prov_disc_req; 543 struct wpabuf *wfd_ie_prov_disc_resp; 544 struct wpabuf *wfd_ie_go_neg; 545 struct wpabuf *wfd_dev_info; 546 struct wpabuf *wfd_assoc_bssid; 547 struct wpabuf *wfd_coupled_sink_info; 548#endif /* CONFIG_WIFI_DISPLAY */ 549 550 u16 authorized_oob_dev_pw_id; 551 552 struct wpabuf **vendor_elem; 553 554 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS]; 555 unsigned int num_pref_freq; 556 557 /* Override option for preferred operating channel in GO Negotiation */ 558 u8 override_pref_op_class; 559 u8 override_pref_channel; 560}; 561 562/** 563 * struct p2p_message - Parsed P2P message (or P2P IE) 564 */ 565struct p2p_message { 566 struct wpabuf *p2p_attributes; 567 struct wpabuf *wps_attributes; 568 struct wpabuf *wfd_subelems; 569 570 u8 dialog_token; 571 572 const u8 *capability; 573 const u8 *go_intent; 574 const u8 *status; 575 const u8 *listen_channel; 576 const u8 *operating_channel; 577 const u8 *channel_list; 578 u8 channel_list_len; 579 const u8 *config_timeout; 580 const u8 *intended_addr; 581 const u8 *group_bssid; 582 const u8 *invitation_flags; 583 584 const u8 *group_info; 585 size_t group_info_len; 586 587 const u8 *group_id; 588 size_t group_id_len; 589 590 const u8 *device_id; 591 592 const u8 *manageability; 593 594 const u8 *noa; 595 size_t noa_len; 596 597 const u8 *ext_listen_timing; 598 599 const u8 *minor_reason_code; 600 601 const u8 *oob_go_neg_channel; 602 603 /* P2P Device Info */ 604 const u8 *p2p_device_info; 605 size_t p2p_device_info_len; 606 const u8 *p2p_device_addr; 607 const u8 *pri_dev_type; 608 u8 num_sec_dev_types; 609 char device_name[WPS_DEV_NAME_MAX_LEN + 1]; 610 u16 config_methods; 611 612 /* WPS IE */ 613 u16 dev_password_id; 614 int dev_password_id_present; 615 u16 wps_config_methods; 616 const u8 *wps_pri_dev_type; 617 const u8 *wps_sec_dev_type_list; 618 size_t wps_sec_dev_type_list_len; 619 const u8 *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT]; 620 size_t wps_vendor_ext_len[P2P_MAX_WPS_VENDOR_EXT]; 621 const u8 *manufacturer; 622 size_t manufacturer_len; 623 const u8 *model_name; 624 size_t model_name_len; 625 const u8 *model_number; 626 size_t model_number_len; 627 const u8 *serial_number; 628 size_t serial_number_len; 629 const u8 *oob_dev_password; 630 size_t oob_dev_password_len; 631 632 /* DS Parameter Set IE */ 633 const u8 *ds_params; 634 635 /* SSID IE */ 636 const u8 *ssid; 637 638 /* P2PS */ 639 u8 service_hash_count; 640 const u8 *service_hash; 641 642 const u8 *session_info; 643 size_t session_info_len; 644 645 const u8 *conn_cap; 646 647 const u8 *adv_id; 648 const u8 *adv_mac; 649 650 const u8 *adv_service_instance; 651 size_t adv_service_instance_len; 652 653 const u8 *session_id; 654 const u8 *session_mac; 655 656 const u8 *feature_cap; 657 size_t feature_cap_len; 658 659 const u8 *persistent_dev; 660 const u8 *persistent_ssid; 661 size_t persistent_ssid_len; 662 663 const u8 *pref_freq_list; 664 size_t pref_freq_list_len; 665}; 666 667 668#define P2P_MAX_GROUP_ENTRIES 50 669 670struct p2p_group_info { 671 unsigned int num_clients; 672 struct p2p_client_info { 673 const u8 *p2p_device_addr; 674 const u8 *p2p_interface_addr; 675 u8 dev_capab; 676 u16 config_methods; 677 const u8 *pri_dev_type; 678 u8 num_sec_dev_types; 679 const u8 *sec_dev_types; 680 const char *dev_name; 681 size_t dev_name_len; 682 } client[P2P_MAX_GROUP_ENTRIES]; 683}; 684 685 686/* p2p_utils.c */ 687int p2p_random(char *buf, size_t len); 688int p2p_channel_to_freq(int op_class, int channel); 689int p2p_freq_to_channel(unsigned int freq, u8 *op_class, u8 *channel); 690void p2p_channels_intersect(const struct p2p_channels *a, 691 const struct p2p_channels *b, 692 struct p2p_channels *res); 693void p2p_channels_union_inplace(struct p2p_channels *res, 694 const struct p2p_channels *b); 695void p2p_channels_union(const struct p2p_channels *a, 696 const struct p2p_channels *b, 697 struct p2p_channels *res); 698void p2p_channels_remove_freqs(struct p2p_channels *chan, 699 const struct wpa_freq_range_list *list); 700int p2p_channels_includes(const struct p2p_channels *channels, u8 reg_class, 701 u8 channel); 702void p2p_channels_dump(struct p2p_data *p2p, const char *title, 703 const struct p2p_channels *chan); 704int p2p_channel_select(struct p2p_channels *chans, const int *classes, 705 u8 *op_class, u8 *op_channel); 706int p2p_channel_random_social(struct p2p_channels *chans, u8 *op_class, 707 u8 *op_channel); 708 709/* p2p_parse.c */ 710void p2p_copy_filter_devname(char *dst, size_t dst_len, 711 const void *src, size_t src_len); 712int p2p_parse_p2p_ie(const struct wpabuf *buf, struct p2p_message *msg); 713int p2p_parse_ies(const u8 *data, size_t len, struct p2p_message *msg); 714int p2p_parse(const u8 *data, size_t len, struct p2p_message *msg); 715int p2p_parse_ies_separate(const u8 *wsc, size_t wsc_len, const u8 *p2p, 716 size_t p2p_len, struct p2p_message *msg); 717void p2p_parse_free(struct p2p_message *msg); 718int p2p_attr_text(struct wpabuf *data, char *buf, char *end); 719int p2p_group_info_parse(const u8 *gi, size_t gi_len, 720 struct p2p_group_info *info); 721 722/* p2p_build.c */ 723 724struct p2p_noa_desc { 725 u8 count_type; 726 u32 duration; 727 u32 interval; 728 u32 start_time; 729}; 730 731/* p2p_group.c */ 732const u8 * p2p_group_get_interface_addr(struct p2p_group *group); 733u8 p2p_group_presence_req(struct p2p_group *group, 734 const u8 *client_interface_addr, 735 const u8 *noa, size_t noa_len); 736int p2p_group_is_group_id_match(struct p2p_group *group, const u8 *group_id, 737 size_t group_id_len); 738void p2p_group_update_ies(struct p2p_group *group); 739void p2p_group_force_beacon_update_ies(struct p2p_group *group); 740struct wpabuf * p2p_group_get_wfd_ie(struct p2p_group *g); 741void p2p_buf_add_group_info(struct p2p_group *group, struct wpabuf *buf, 742 int max_clients); 743void p2p_group_buf_add_id(struct p2p_group *group, struct wpabuf *buf); 744int p2p_group_get_freq(struct p2p_group *group); 745 746 747void p2p_buf_add_action_hdr(struct wpabuf *buf, u8 subtype, u8 dialog_token); 748void p2p_buf_add_public_action_hdr(struct wpabuf *buf, u8 subtype, 749 u8 dialog_token); 750u8 * p2p_buf_add_ie_hdr(struct wpabuf *buf); 751void p2p_buf_add_status(struct wpabuf *buf, u8 status); 752void p2p_buf_add_device_info(struct wpabuf *buf, struct p2p_data *p2p, 753 struct p2p_device *peer); 754void p2p_buf_add_device_id(struct wpabuf *buf, const u8 *dev_addr); 755void p2p_buf_update_ie_hdr(struct wpabuf *buf, u8 *len); 756void p2p_buf_add_capability(struct wpabuf *buf, u8 dev_capab, u8 group_capab); 757void p2p_buf_add_go_intent(struct wpabuf *buf, u8 go_intent); 758void p2p_buf_add_listen_channel(struct wpabuf *buf, const char *country, 759 u8 reg_class, u8 channel); 760void p2p_buf_add_operating_channel(struct wpabuf *buf, const char *country, 761 u8 reg_class, u8 channel); 762void p2p_buf_add_channel_list(struct wpabuf *buf, const char *country, 763 struct p2p_channels *chan); 764void p2p_buf_add_config_timeout(struct wpabuf *buf, u8 go_timeout, 765 u8 client_timeout); 766void p2p_buf_add_intended_addr(struct wpabuf *buf, const u8 *interface_addr); 767void p2p_buf_add_group_bssid(struct wpabuf *buf, const u8 *bssid); 768void p2p_buf_add_group_id(struct wpabuf *buf, const u8 *dev_addr, 769 const u8 *ssid, size_t ssid_len); 770void p2p_buf_add_invitation_flags(struct wpabuf *buf, u8 flags); 771void p2p_buf_add_noa(struct wpabuf *buf, u8 noa_index, u8 opp_ps, u8 ctwindow, 772 struct p2p_noa_desc *desc1, struct p2p_noa_desc *desc2); 773void p2p_buf_add_ext_listen_timing(struct wpabuf *buf, u16 period, 774 u16 interval); 775void p2p_buf_add_p2p_interface(struct wpabuf *buf, struct p2p_data *p2p); 776void p2p_buf_add_oob_go_neg_channel(struct wpabuf *buf, const char *country, 777 u8 oper_class, u8 channel, 778 enum p2p_role_indication role); 779void p2p_buf_add_service_hash(struct wpabuf *buf, struct p2p_data *p2p); 780void p2p_buf_add_session_info(struct wpabuf *buf, const char *info); 781void p2p_buf_add_connection_capability(struct wpabuf *buf, u8 connection_cap); 782void p2p_buf_add_advertisement_id(struct wpabuf *buf, u32 id, const u8 *mac); 783void p2p_buf_add_service_instance(struct wpabuf *buf, struct p2p_data *p2p, 784 u8 count, const u8 *hash, 785 struct p2ps_advertisement *adv_list); 786void p2p_buf_add_session_id(struct wpabuf *buf, u32 id, const u8 *mac); 787void p2p_buf_add_feature_capability(struct wpabuf *buf, u16 len, 788 const u8 *mask); 789void p2p_buf_add_persistent_group_info(struct wpabuf *buf, const u8 *dev_addr, 790 const u8 *ssid, size_t ssid_len); 791int p2p_build_wps_ie(struct p2p_data *p2p, struct wpabuf *buf, int pw_id, 792 int all_attr); 793void p2p_buf_add_pref_channel_list(struct wpabuf *buf, 794 const u32 *preferred_freq_list, u32 size); 795 796/* p2p_sd.c */ 797struct p2p_sd_query * p2p_pending_sd_req(struct p2p_data *p2p, 798 struct p2p_device *dev); 799void p2p_free_sd_queries(struct p2p_data *p2p); 800void p2p_rx_gas_initial_req(struct p2p_data *p2p, const u8 *sa, 801 const u8 *data, size_t len, int rx_freq); 802void p2p_rx_gas_initial_resp(struct p2p_data *p2p, const u8 *sa, 803 const u8 *data, size_t len, int rx_freq); 804void p2p_rx_gas_comeback_req(struct p2p_data *p2p, const u8 *sa, 805 const u8 *data, size_t len, int rx_freq); 806void p2p_rx_gas_comeback_resp(struct p2p_data *p2p, const u8 *sa, 807 const u8 *data, size_t len, int rx_freq); 808int p2p_start_sd(struct p2p_data *p2p, struct p2p_device *dev); 809 810/* p2p_go_neg.c */ 811int p2p_peer_channels_check(struct p2p_data *p2p, struct p2p_channels *own, 812 struct p2p_device *dev, 813 const u8 *channel_list, size_t channel_list_len); 814void p2p_process_go_neg_req(struct p2p_data *p2p, const u8 *sa, 815 const u8 *data, size_t len, int rx_freq); 816void p2p_process_go_neg_resp(struct p2p_data *p2p, const u8 *sa, 817 const u8 *data, size_t len, int rx_freq); 818void p2p_process_go_neg_conf(struct p2p_data *p2p, const u8 *sa, 819 const u8 *data, size_t len); 820int p2p_connect_send(struct p2p_data *p2p, struct p2p_device *dev); 821u16 p2p_wps_method_pw_id(enum p2p_wps_method wps_method); 822void p2p_reselect_channel(struct p2p_data *p2p, 823 struct p2p_channels *intersection); 824void p2p_check_pref_chan(struct p2p_data *p2p, int go, 825 struct p2p_device *dev, struct p2p_message *msg); 826 827/* p2p_pd.c */ 828void p2p_process_prov_disc_req(struct p2p_data *p2p, const u8 *sa, 829 const u8 *data, size_t len, int rx_freq); 830void p2p_process_prov_disc_resp(struct p2p_data *p2p, const u8 *sa, 831 const u8 *data, size_t len); 832int p2p_send_prov_disc_req(struct p2p_data *p2p, struct p2p_device *dev, 833 int join, int force_freq); 834void p2p_reset_pending_pd(struct p2p_data *p2p); 835void p2ps_prov_free(struct p2p_data *p2p); 836 837/* p2p_invitation.c */ 838void p2p_process_invitation_req(struct p2p_data *p2p, const u8 *sa, 839 const u8 *data, size_t len, int rx_freq); 840void p2p_process_invitation_resp(struct p2p_data *p2p, const u8 *sa, 841 const u8 *data, size_t len); 842int p2p_invite_send(struct p2p_data *p2p, struct p2p_device *dev, 843 const u8 *go_dev_addr, int dev_pw_id); 844void p2p_invitation_req_cb(struct p2p_data *p2p, int success); 845void p2p_invitation_resp_cb(struct p2p_data *p2p, int success); 846 847/* p2p_dev_disc.c */ 848void p2p_process_dev_disc_req(struct p2p_data *p2p, const u8 *sa, 849 const u8 *data, size_t len, int rx_freq); 850void p2p_dev_disc_req_cb(struct p2p_data *p2p, int success); 851int p2p_send_dev_disc_req(struct p2p_data *p2p, struct p2p_device *dev); 852void p2p_dev_disc_resp_cb(struct p2p_data *p2p, int success); 853void p2p_process_dev_disc_resp(struct p2p_data *p2p, const u8 *sa, 854 const u8 *data, size_t len); 855void p2p_go_disc_req_cb(struct p2p_data *p2p, int success); 856void p2p_process_go_disc_req(struct p2p_data *p2p, const u8 *da, const u8 *sa, 857 const u8 *data, size_t len, int rx_freq); 858 859/* p2p.c */ 860void p2p_set_state(struct p2p_data *p2p, int new_state); 861void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, 862 unsigned int usec); 863void p2p_clear_timeout(struct p2p_data *p2p); 864void p2p_continue_find(struct p2p_data *p2p); 865struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p, 866 const u8 *addr, 867 struct p2p_message *msg); 868void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr, 869 struct p2p_device *dev, struct p2p_message *msg); 870int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq, 871 struct os_reltime *rx_time, int level, const u8 *ies, 872 size_t ies_len, int scan_res); 873struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr); 874struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p, 875 const u8 *addr); 876void p2p_go_neg_failed(struct p2p_data *p2p, int status); 877void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer); 878int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps); 879int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[], 880 size_t num_req_dev_type); 881struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p, 882 const u8 *query_hash, 883 u8 query_count); 884void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len); 885int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst, 886 const u8 *src, const u8 *bssid, const u8 *buf, 887 size_t len, unsigned int wait_time); 888void p2p_stop_listen_for_freq(struct p2p_data *p2p, int freq); 889int p2p_prepare_channel(struct p2p_data *p2p, struct p2p_device *dev, 890 unsigned int force_freq, unsigned int pref_freq, 891 int go); 892void p2p_go_neg_wait_timeout(void *eloop_ctx, void *timeout_ctx); 893int p2p_go_select_channel(struct p2p_data *p2p, struct p2p_device *dev, 894 u8 *status); 895void p2p_dbg(struct p2p_data *p2p, const char *fmt, ...) 896PRINTF_FORMAT(2, 3); 897void p2p_info(struct p2p_data *p2p, const char *fmt, ...) 898PRINTF_FORMAT(2, 3); 899void p2p_err(struct p2p_data *p2p, const char *fmt, ...) 900PRINTF_FORMAT(2, 3); 901 902#endif /* P2P_I_H */ 903