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