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 23 enum 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 32 enum 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 */ 41 struct 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 }; 152 153 struct 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 }; 160 161 struct 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 */ 174 struct 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 /* GO Negotiation data */ 312 313 /** 314 * intended_addr - Local Intended P2P Interface Address 315 * 316 * This address is used during group owner negotiation as the Intended 317 * P2P Interface Address and the group interface will be created with 318 * address as the local address in case of successfully completed 319 * negotiation. 320 */ 321 u8 intended_addr[ETH_ALEN]; 322 323 /** 324 * go_intent - Local GO Intent to be used during GO Negotiation 325 */ 326 u8 go_intent; 327 328 /** 329 * next_tie_breaker - Next tie-breaker value to use in GO Negotiation 330 */ 331 u8 next_tie_breaker; 332 333 /** 334 * ssid - Selected SSID for GO Negotiation (if local end will be GO) 335 */ 336 u8 ssid[SSID_MAX_LEN]; 337 338 /** 339 * ssid_len - ssid length in octets 340 */ 341 size_t ssid_len; 342 343 /** 344 * ssid_set - Whether SSID is already set for GO Negotiation 345 */ 346 int ssid_set; 347 348 /** 349 * Regulatory class for own operational channel 350 */ 351 u8 op_reg_class; 352 353 /** 354 * op_channel - Own operational channel 355 */ 356 u8 op_channel; 357 358 /** 359 * channels - Own supported regulatory classes and channels 360 * 361 * List of supposerted channels per regulatory class. The regulatory 362 * classes are defined in IEEE Std 802.11-2007 Annex J and the 363 * numbering of the clases depends on the configured country code. 364 */ 365 struct p2p_channels channels; 366 367 struct wpa_freq_range_list no_go_freq; 368 369 enum p2p_pending_action_state { 370 P2P_NO_PENDING_ACTION, 371 P2P_PENDING_GO_NEG_REQUEST, 372 P2P_PENDING_GO_NEG_RESPONSE, 373 P2P_PENDING_GO_NEG_RESPONSE_FAILURE, 374 P2P_PENDING_GO_NEG_CONFIRM, 375 P2P_PENDING_SD, 376 P2P_PENDING_PD, 377 P2P_PENDING_PD_RESPONSE, 378 P2P_PENDING_INVITATION_REQUEST, 379 P2P_PENDING_INVITATION_RESPONSE, 380 P2P_PENDING_DEV_DISC_REQUEST, 381 P2P_PENDING_DEV_DISC_RESPONSE, 382 P2P_PENDING_GO_DISC_REQ 383 } pending_action_state; 384 385 unsigned int pending_listen_freq; 386 unsigned int pending_listen_sec; 387 unsigned int pending_listen_usec; 388 389 u8 dev_capab; 390 391 int in_listen; 392 int drv_in_listen; 393 394 /** 395 * sd_queries - Pending service discovery queries 396 */ 397 struct p2p_sd_query *sd_queries; 398 399 /** 400 * srv_update_indic - Service Update Indicator for local services 401 */ 402 u16 srv_update_indic; 403 404 struct wpabuf *sd_resp; /* Fragmented SD response */ 405 u8 sd_resp_addr[ETH_ALEN]; 406 u8 sd_resp_dialog_token; 407 size_t sd_resp_pos; /* Offset in sd_resp */ 408 u8 sd_frag_id; 409 410 struct wpabuf *sd_rx_resp; /* Reassembled SD response */ 411 u16 sd_rx_update_indic; 412 413 /* P2P Invitation data */ 414 enum p2p_invite_role inv_role; 415 u8 inv_bssid[ETH_ALEN]; 416 int inv_bssid_set; 417 u8 inv_ssid[SSID_MAX_LEN]; 418 size_t inv_ssid_len; 419 u8 inv_sa[ETH_ALEN]; 420 u8 inv_group_bssid[ETH_ALEN]; 421 u8 *inv_group_bssid_ptr; 422 u8 inv_go_dev_addr[ETH_ALEN]; 423 u8 inv_status; 424 int inv_op_freq; 425 int inv_persistent; 426 427 enum p2p_discovery_type find_type; 428 unsigned int last_p2p_find_timeout; 429 u8 last_prog_scan_class; 430 u8 last_prog_scan_chan; 431 int p2p_scan_running; 432 enum p2p_after_scan { 433 P2P_AFTER_SCAN_NOTHING, 434 P2P_AFTER_SCAN_LISTEN, 435 P2P_AFTER_SCAN_CONNECT 436 } start_after_scan; 437 u8 after_scan_peer[ETH_ALEN]; 438 struct p2p_pending_action_tx *after_scan_tx; 439 unsigned int after_scan_tx_in_progress:1; 440 unsigned int send_action_in_progress:1; 441 442 /* Requested device types for find/search */ 443 unsigned int num_req_dev_types; 444 u8 *req_dev_types; 445 u8 *find_dev_id; 446 u8 find_dev_id_buf[ETH_ALEN]; 447 448 struct os_reltime find_start; /* time of last p2p_find start */ 449 450 struct p2p_group **groups; 451 size_t num_groups; 452 453 struct p2p_device *pending_client_disc_go; 454 u8 pending_client_disc_addr[ETH_ALEN]; 455 u8 pending_dev_disc_dialog_token; 456 u8 pending_dev_disc_addr[ETH_ALEN]; 457 int pending_dev_disc_freq; 458 unsigned int pending_client_disc_freq; 459 460 int ext_listen_only; 461 unsigned int ext_listen_period; 462 unsigned int ext_listen_interval; 463 unsigned int ext_listen_interval_sec; 464 unsigned int ext_listen_interval_usec; 465 466 u8 peer_filter[ETH_ALEN]; 467 468 int cross_connect; 469 470 int best_freq_24; 471 int best_freq_5; 472 int best_freq_overall; 473 int own_freq_preference; 474 475 /** 476 * wps_vendor_ext - WPS Vendor Extensions to add 477 */ 478 struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT]; 479 480 /* 481 * user_initiated_pd - Whether a PD request is user initiated or not. 482 */ 483 u8 user_initiated_pd; 484 485 /* 486 * Keep track of which peer a given PD request was sent to. 487 * Used to raise a timeout alert in case there is no response. 488 */ 489 u8 pending_pd_devaddr[ETH_ALEN]; 490 491 /* 492 * Retry counter for provision discovery requests when issued 493 * in IDLE state. 494 */ 495 int pd_retries; 496 497 /** 498 * pd_force_freq - Forced frequency for PD retries or 0 to auto-select 499 * 500 * This is is used during PD retries for join-a-group case to use the 501 * correct operating frequency determined from a BSS entry for the GO. 502 */ 503 int pd_force_freq; 504 505 u8 go_timeout; 506 u8 client_timeout; 507 508 /* Extra delay in milliseconds between search iterations */ 509 unsigned int search_delay; 510 int in_search_delay; 511 512 u8 pending_reg_class; 513 u8 pending_channel; 514 u8 pending_channel_forced; 515 516 /* ASP Support */ 517 struct p2ps_advertisement *p2ps_adv_list; 518 struct p2ps_provision *p2ps_prov; 519 u8 wild_card_hash[P2PS_HASH_LEN]; 520 u8 p2ps_seek; 521 u8 p2ps_seek_hash[P2P_MAX_QUERY_HASH * P2PS_HASH_LEN]; 522 u8 p2ps_seek_count; 523 524 #ifdef CONFIG_WIFI_DISPLAY 525 struct wpabuf *wfd_ie_beacon; 526 struct wpabuf *wfd_ie_probe_req; 527 struct wpabuf *wfd_ie_probe_resp; 528 struct wpabuf *wfd_ie_assoc_req; 529 struct wpabuf *wfd_ie_invitation; 530 struct wpabuf *wfd_ie_prov_disc_req; 531 struct wpabuf *wfd_ie_prov_disc_resp; 532 struct wpabuf *wfd_ie_go_neg; 533 struct wpabuf *wfd_dev_info; 534 struct wpabuf *wfd_assoc_bssid; 535 struct wpabuf *wfd_coupled_sink_info; 536 #endif /* CONFIG_WIFI_DISPLAY */ 537 538 u16 authorized_oob_dev_pw_id; 539 540 struct wpabuf **vendor_elem; 541 542 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS]; 543 unsigned int num_pref_freq; 544 }; 545 546 /** 547 * struct p2p_message - Parsed P2P message (or P2P IE) 548 */ 549 struct p2p_message { 550 struct wpabuf *p2p_attributes; 551 struct wpabuf *wps_attributes; 552 struct wpabuf *wfd_subelems; 553 554 u8 dialog_token; 555 556 const u8 *capability; 557 const u8 *go_intent; 558 const u8 *status; 559 const u8 *listen_channel; 560 const u8 *operating_channel; 561 const u8 *channel_list; 562 u8 channel_list_len; 563 const u8 *config_timeout; 564 const u8 *intended_addr; 565 const u8 *group_bssid; 566 const u8 *invitation_flags; 567 568 const u8 *group_info; 569 size_t group_info_len; 570 571 const u8 *group_id; 572 size_t group_id_len; 573 574 const u8 *device_id; 575 576 const u8 *manageability; 577 578 const u8 *noa; 579 size_t noa_len; 580 581 const u8 *ext_listen_timing; 582 583 const u8 *minor_reason_code; 584 585 const u8 *oob_go_neg_channel; 586 587 /* P2P Device Info */ 588 const u8 *p2p_device_info; 589 size_t p2p_device_info_len; 590 const u8 *p2p_device_addr; 591 const u8 *pri_dev_type; 592 u8 num_sec_dev_types; 593 char device_name[WPS_DEV_NAME_MAX_LEN + 1]; 594 u16 config_methods; 595 596 /* WPS IE */ 597 u16 dev_password_id; 598 int dev_password_id_present; 599 u16 wps_config_methods; 600 const u8 *wps_pri_dev_type; 601 const u8 *wps_sec_dev_type_list; 602 size_t wps_sec_dev_type_list_len; 603 const u8 *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT]; 604 size_t wps_vendor_ext_len[P2P_MAX_WPS_VENDOR_EXT]; 605 const u8 *manufacturer; 606 size_t manufacturer_len; 607 const u8 *model_name; 608 size_t model_name_len; 609 const u8 *model_number; 610 size_t model_number_len; 611 const u8 *serial_number; 612 size_t serial_number_len; 613 const u8 *oob_dev_password; 614 size_t oob_dev_password_len; 615 616 /* DS Parameter Set IE */ 617 const u8 *ds_params; 618 619 /* SSID IE */ 620 const u8 *ssid; 621 622 /* P2PS */ 623 u8 service_hash_count; 624 const u8 *service_hash; 625 626 const u8 *session_info; 627 size_t session_info_len; 628 629 const u8 *conn_cap; 630 631 const u8 *adv_id; 632 const u8 *adv_mac; 633 634 const u8 *adv_service_instance; 635 size_t adv_service_instance_len; 636 637 const u8 *session_id; 638 const u8 *session_mac; 639 640 const u8 *feature_cap; 641 size_t feature_cap_len; 642 643 const u8 *persistent_dev; 644 const u8 *persistent_ssid; 645 size_t persistent_ssid_len; 646 647 const u8 *pref_freq_list; 648 size_t pref_freq_list_len; 649 }; 650 651 652 #define P2P_MAX_GROUP_ENTRIES 50 653 654 struct p2p_group_info { 655 unsigned int num_clients; 656 struct p2p_client_info { 657 const u8 *p2p_device_addr; 658 const u8 *p2p_interface_addr; 659 u8 dev_capab; 660 u16 config_methods; 661 const u8 *pri_dev_type; 662 u8 num_sec_dev_types; 663 const u8 *sec_dev_types; 664 const char *dev_name; 665 size_t dev_name_len; 666 } client[P2P_MAX_GROUP_ENTRIES]; 667 }; 668 669 670 /* p2p_utils.c */ 671 int p2p_random(char *buf, size_t len); 672 int p2p_channel_to_freq(int op_class, int channel); 673 int p2p_freq_to_channel(unsigned int freq, u8 *op_class, u8 *channel); 674 void p2p_channels_intersect(const struct p2p_channels *a, 675 const struct p2p_channels *b, 676 struct p2p_channels *res); 677 void p2p_channels_union_inplace(struct p2p_channels *res, 678 const struct p2p_channels *b); 679 void p2p_channels_union(const struct p2p_channels *a, 680 const struct p2p_channels *b, 681 struct p2p_channels *res); 682 void p2p_channels_remove_freqs(struct p2p_channels *chan, 683 const struct wpa_freq_range_list *list); 684 int p2p_channels_includes(const struct p2p_channels *channels, u8 reg_class, 685 u8 channel); 686 void p2p_channels_dump(struct p2p_data *p2p, const char *title, 687 const struct p2p_channels *chan); 688 int p2p_channel_select(struct p2p_channels *chans, const int *classes, 689 u8 *op_class, u8 *op_channel); 690 int p2p_channel_random_social(struct p2p_channels *chans, u8 *op_class, 691 u8 *op_channel); 692 693 /* p2p_parse.c */ 694 int p2p_parse_p2p_ie(const struct wpabuf *buf, struct p2p_message *msg); 695 int p2p_parse_ies(const u8 *data, size_t len, struct p2p_message *msg); 696 int p2p_parse(const u8 *data, size_t len, struct p2p_message *msg); 697 int p2p_parse_ies_separate(const u8 *wsc, size_t wsc_len, const u8 *p2p, 698 size_t p2p_len, struct p2p_message *msg); 699 void p2p_parse_free(struct p2p_message *msg); 700 int p2p_attr_text(struct wpabuf *data, char *buf, char *end); 701 int p2p_group_info_parse(const u8 *gi, size_t gi_len, 702 struct p2p_group_info *info); 703 704 /* p2p_build.c */ 705 706 struct p2p_noa_desc { 707 u8 count_type; 708 u32 duration; 709 u32 interval; 710 u32 start_time; 711 }; 712 713 /* p2p_group.c */ 714 const u8 * p2p_group_get_interface_addr(struct p2p_group *group); 715 u8 p2p_group_presence_req(struct p2p_group *group, 716 const u8 *client_interface_addr, 717 const u8 *noa, size_t noa_len); 718 int p2p_group_is_group_id_match(struct p2p_group *group, const u8 *group_id, 719 size_t group_id_len); 720 void p2p_group_update_ies(struct p2p_group *group); 721 void p2p_group_force_beacon_update_ies(struct p2p_group *group); 722 struct wpabuf * p2p_group_get_wfd_ie(struct p2p_group *g); 723 void p2p_buf_add_group_info(struct p2p_group *group, struct wpabuf *buf, 724 int max_clients); 725 void p2p_group_buf_add_id(struct p2p_group *group, struct wpabuf *buf); 726 int p2p_group_get_freq(struct p2p_group *group); 727 728 729 void p2p_buf_add_action_hdr(struct wpabuf *buf, u8 subtype, u8 dialog_token); 730 void p2p_buf_add_public_action_hdr(struct wpabuf *buf, u8 subtype, 731 u8 dialog_token); 732 u8 * p2p_buf_add_ie_hdr(struct wpabuf *buf); 733 void p2p_buf_add_status(struct wpabuf *buf, u8 status); 734 void p2p_buf_add_device_info(struct wpabuf *buf, struct p2p_data *p2p, 735 struct p2p_device *peer); 736 void p2p_buf_add_device_id(struct wpabuf *buf, const u8 *dev_addr); 737 void p2p_buf_update_ie_hdr(struct wpabuf *buf, u8 *len); 738 void p2p_buf_add_capability(struct wpabuf *buf, u8 dev_capab, u8 group_capab); 739 void p2p_buf_add_go_intent(struct wpabuf *buf, u8 go_intent); 740 void p2p_buf_add_listen_channel(struct wpabuf *buf, const char *country, 741 u8 reg_class, u8 channel); 742 void p2p_buf_add_operating_channel(struct wpabuf *buf, const char *country, 743 u8 reg_class, u8 channel); 744 void p2p_buf_add_channel_list(struct wpabuf *buf, const char *country, 745 struct p2p_channels *chan); 746 void p2p_buf_add_config_timeout(struct wpabuf *buf, u8 go_timeout, 747 u8 client_timeout); 748 void p2p_buf_add_intended_addr(struct wpabuf *buf, const u8 *interface_addr); 749 void p2p_buf_add_group_bssid(struct wpabuf *buf, const u8 *bssid); 750 void p2p_buf_add_group_id(struct wpabuf *buf, const u8 *dev_addr, 751 const u8 *ssid, size_t ssid_len); 752 void p2p_buf_add_invitation_flags(struct wpabuf *buf, u8 flags); 753 void p2p_buf_add_noa(struct wpabuf *buf, u8 noa_index, u8 opp_ps, u8 ctwindow, 754 struct p2p_noa_desc *desc1, struct p2p_noa_desc *desc2); 755 void p2p_buf_add_ext_listen_timing(struct wpabuf *buf, u16 period, 756 u16 interval); 757 void p2p_buf_add_p2p_interface(struct wpabuf *buf, struct p2p_data *p2p); 758 void p2p_buf_add_oob_go_neg_channel(struct wpabuf *buf, const char *country, 759 u8 oper_class, u8 channel, 760 enum p2p_role_indication role); 761 void p2p_buf_add_service_hash(struct wpabuf *buf, struct p2p_data *p2p); 762 void p2p_buf_add_session_info(struct wpabuf *buf, const char *info); 763 void p2p_buf_add_connection_capability(struct wpabuf *buf, u8 connection_cap); 764 void p2p_buf_add_advertisement_id(struct wpabuf *buf, u32 id, const u8 *mac); 765 void p2p_buf_add_service_instance(struct wpabuf *buf, struct p2p_data *p2p, 766 u8 count, const u8 *hash, 767 struct p2ps_advertisement *adv_list); 768 void p2p_buf_add_session_id(struct wpabuf *buf, u32 id, const u8 *mac); 769 void p2p_buf_add_feature_capability(struct wpabuf *buf, u16 len, 770 const u8 *mask); 771 void p2p_buf_add_persistent_group_info(struct wpabuf *buf, const u8 *dev_addr, 772 const u8 *ssid, size_t ssid_len); 773 int p2p_build_wps_ie(struct p2p_data *p2p, struct wpabuf *buf, int pw_id, 774 int all_attr); 775 void p2p_buf_add_pref_channel_list(struct wpabuf *buf, 776 const u32 *preferred_freq_list, u32 size); 777 778 /* p2p_sd.c */ 779 struct p2p_sd_query * p2p_pending_sd_req(struct p2p_data *p2p, 780 struct p2p_device *dev); 781 void p2p_free_sd_queries(struct p2p_data *p2p); 782 void p2p_rx_gas_initial_req(struct p2p_data *p2p, const u8 *sa, 783 const u8 *data, size_t len, int rx_freq); 784 void p2p_rx_gas_initial_resp(struct p2p_data *p2p, const u8 *sa, 785 const u8 *data, size_t len, int rx_freq); 786 void p2p_rx_gas_comeback_req(struct p2p_data *p2p, const u8 *sa, 787 const u8 *data, size_t len, int rx_freq); 788 void p2p_rx_gas_comeback_resp(struct p2p_data *p2p, const u8 *sa, 789 const u8 *data, size_t len, int rx_freq); 790 int p2p_start_sd(struct p2p_data *p2p, struct p2p_device *dev); 791 792 /* p2p_go_neg.c */ 793 int p2p_peer_channels_check(struct p2p_data *p2p, struct p2p_channels *own, 794 struct p2p_device *dev, 795 const u8 *channel_list, size_t channel_list_len); 796 void p2p_process_go_neg_req(struct p2p_data *p2p, const u8 *sa, 797 const u8 *data, size_t len, int rx_freq); 798 void p2p_process_go_neg_resp(struct p2p_data *p2p, const u8 *sa, 799 const u8 *data, size_t len, int rx_freq); 800 void p2p_process_go_neg_conf(struct p2p_data *p2p, const u8 *sa, 801 const u8 *data, size_t len); 802 int p2p_connect_send(struct p2p_data *p2p, struct p2p_device *dev); 803 u16 p2p_wps_method_pw_id(enum p2p_wps_method wps_method); 804 void p2p_reselect_channel(struct p2p_data *p2p, 805 struct p2p_channels *intersection); 806 void p2p_check_pref_chan(struct p2p_data *p2p, int go, 807 struct p2p_device *dev, struct p2p_message *msg); 808 809 /* p2p_pd.c */ 810 void p2p_process_prov_disc_req(struct p2p_data *p2p, const u8 *sa, 811 const u8 *data, size_t len, int rx_freq); 812 void p2p_process_prov_disc_resp(struct p2p_data *p2p, const u8 *sa, 813 const u8 *data, size_t len); 814 int p2p_send_prov_disc_req(struct p2p_data *p2p, struct p2p_device *dev, 815 int join, int force_freq); 816 void p2p_reset_pending_pd(struct p2p_data *p2p); 817 void p2ps_prov_free(struct p2p_data *p2p); 818 819 /* p2p_invitation.c */ 820 void p2p_process_invitation_req(struct p2p_data *p2p, const u8 *sa, 821 const u8 *data, size_t len, int rx_freq); 822 void p2p_process_invitation_resp(struct p2p_data *p2p, const u8 *sa, 823 const u8 *data, size_t len); 824 int p2p_invite_send(struct p2p_data *p2p, struct p2p_device *dev, 825 const u8 *go_dev_addr, int dev_pw_id); 826 void p2p_invitation_req_cb(struct p2p_data *p2p, int success); 827 void p2p_invitation_resp_cb(struct p2p_data *p2p, int success); 828 829 /* p2p_dev_disc.c */ 830 void p2p_process_dev_disc_req(struct p2p_data *p2p, const u8 *sa, 831 const u8 *data, size_t len, int rx_freq); 832 void p2p_dev_disc_req_cb(struct p2p_data *p2p, int success); 833 int p2p_send_dev_disc_req(struct p2p_data *p2p, struct p2p_device *dev); 834 void p2p_dev_disc_resp_cb(struct p2p_data *p2p, int success); 835 void p2p_process_dev_disc_resp(struct p2p_data *p2p, const u8 *sa, 836 const u8 *data, size_t len); 837 void p2p_go_disc_req_cb(struct p2p_data *p2p, int success); 838 void p2p_process_go_disc_req(struct p2p_data *p2p, const u8 *da, const u8 *sa, 839 const u8 *data, size_t len, int rx_freq); 840 841 /* p2p.c */ 842 void p2p_set_state(struct p2p_data *p2p, int new_state); 843 void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, 844 unsigned int usec); 845 void p2p_clear_timeout(struct p2p_data *p2p); 846 void p2p_continue_find(struct p2p_data *p2p); 847 struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p, 848 const u8 *addr, 849 struct p2p_message *msg); 850 void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr, 851 struct p2p_device *dev, struct p2p_message *msg); 852 int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq, 853 struct os_reltime *rx_time, int level, const u8 *ies, 854 size_t ies_len, int scan_res); 855 struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr); 856 struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p, 857 const u8 *addr); 858 void p2p_go_neg_failed(struct p2p_data *p2p, int status); 859 void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer); 860 int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps); 861 int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[], 862 size_t num_req_dev_type); 863 struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p, 864 const u8 *query_hash, 865 u8 query_count); 866 void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len); 867 int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst, 868 const u8 *src, const u8 *bssid, const u8 *buf, 869 size_t len, unsigned int wait_time); 870 void p2p_stop_listen_for_freq(struct p2p_data *p2p, int freq); 871 int p2p_prepare_channel(struct p2p_data *p2p, struct p2p_device *dev, 872 unsigned int force_freq, unsigned int pref_freq, 873 int go); 874 void p2p_go_neg_wait_timeout(void *eloop_ctx, void *timeout_ctx); 875 int p2p_go_select_channel(struct p2p_data *p2p, struct p2p_device *dev, 876 u8 *status); 877 void p2p_dbg(struct p2p_data *p2p, const char *fmt, ...) 878 PRINTF_FORMAT(2, 3); 879 void p2p_info(struct p2p_data *p2p, const char *fmt, ...) 880 PRINTF_FORMAT(2, 3); 881 void p2p_err(struct p2p_data *p2p, const char *fmt, ...) 882 PRINTF_FORMAT(2, 3); 883 884 #endif /* P2P_I_H */ 885