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 #include "ap/ap_config.h" 15 16 #define P2P_GO_NEG_CNF_MAX_RETRY_COUNT 1 17 18 /* 19 * A threshold (in seconds) to prefer a direct Probe Response frame from a P2P 20 * Device over the P2P Client Info received from a GO. 21 */ 22 #define P2P_DEV_GROUP_CLIENT_RESP_THRESHOLD 1 23 24 enum p2p_role_indication; 25 26 /* 27 * To force Service Instances to fit within a single P2P Tag, MAX_SVC_ADV_LEN 28 * must equal 248 or less. Must have a minimum size of 19. 29 */ 30 #define MAX_SVC_ADV_LEN 600 31 #define MAX_SVC_ADV_IE_LEN (9 + MAX_SVC_ADV_LEN + (5 * (MAX_SVC_ADV_LEN / 240))) 32 33 enum p2p_go_state { 34 UNKNOWN_GO, 35 LOCAL_GO, 36 REMOTE_GO 37 }; 38 39 /** 40 * struct p2p_device - P2P Device data (internal to P2P module) 41 */ 42 struct p2p_device { 43 struct dl_list list; 44 struct os_reltime last_seen; 45 int listen_freq; 46 int oob_go_neg_freq; 47 enum p2p_wps_method wps_method; 48 u16 oob_pw_id; 49 50 struct p2p_peer_info info; 51 52 /* 53 * If the peer was discovered based on an interface address (e.g., GO 54 * from Beacon/Probe Response), the interface address is stored here. 55 * p2p_device_addr must still be set in such a case to the unique 56 * identifier for the P2P Device. 57 * 58 * This field is also used during P2PS PD to store the intended GO 59 * address of the peer. 60 */ 61 u8 interface_addr[ETH_ALEN]; 62 63 /* 64 * P2P Device Address of the GO in whose group this P2P Device is a 65 * client. 66 */ 67 u8 member_in_go_dev[ETH_ALEN]; 68 69 /* 70 * P2P Interface Address of the GO in whose group this P2P Device is a 71 * client. 72 */ 73 u8 member_in_go_iface[ETH_ALEN]; 74 75 int go_neg_req_sent; 76 enum p2p_go_state go_state; 77 u8 dialog_token; 78 u8 tie_breaker; 79 u8 intended_addr[ETH_ALEN]; 80 81 char country[3]; 82 struct p2p_channels channels; 83 int oper_freq; 84 u8 oper_ssid[SSID_MAX_LEN]; 85 size_t oper_ssid_len; 86 87 /** 88 * req_config_methods - Pending provision discovery methods 89 */ 90 u16 req_config_methods; 91 92 /** 93 * wps_prov_info - Stored provisioning WPS config method 94 * 95 * This is used to store pending WPS config method between Provisioning 96 * Discovery and connection to a running group. 97 */ 98 u16 wps_prov_info; 99 100 #define P2P_DEV_PROBE_REQ_ONLY BIT(0) 101 #define P2P_DEV_REPORTED BIT(1) 102 #define P2P_DEV_NOT_YET_READY BIT(2) 103 #define P2P_DEV_PD_PEER_DISPLAY BIT(5) 104 #define P2P_DEV_PD_PEER_KEYPAD BIT(6) 105 #define P2P_DEV_USER_REJECTED BIT(7) 106 #define P2P_DEV_PEER_WAITING_RESPONSE BIT(8) 107 #define P2P_DEV_PREFER_PERSISTENT_GROUP BIT(9) 108 #define P2P_DEV_WAIT_GO_NEG_RESPONSE BIT(10) 109 #define P2P_DEV_WAIT_GO_NEG_CONFIRM BIT(11) 110 #define P2P_DEV_GROUP_CLIENT_ONLY BIT(12) 111 #define P2P_DEV_FORCE_FREQ BIT(13) 112 #define P2P_DEV_PD_FOR_JOIN BIT(14) 113 #define P2P_DEV_REPORTED_ONCE BIT(15) 114 #define P2P_DEV_PREFER_PERSISTENT_RECONN BIT(16) 115 #define P2P_DEV_PD_BEFORE_GO_NEG BIT(17) 116 #define P2P_DEV_NO_PREF_CHAN BIT(18) 117 #define P2P_DEV_WAIT_INV_REQ_ACK BIT(19) 118 #define P2P_DEV_P2PS_REPORTED BIT(20) 119 #define P2P_DEV_PD_PEER_P2PS BIT(21) 120 #define P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT BIT(22) 121 122 unsigned int flags; 123 124 int status; /* enum p2p_status_code */ 125 unsigned int wait_count; 126 unsigned int connect_reqs; 127 unsigned int invitation_reqs; 128 unsigned int sd_reqs; 129 130 u16 ext_listen_period; 131 u16 ext_listen_interval; 132 133 u8 go_timeout; 134 u8 client_timeout; 135 136 /** 137 * go_neg_conf_sent - Number of GO Negotiation Confirmation retries 138 */ 139 u8 go_neg_conf_sent; 140 141 /** 142 * freq - Frquency on which the GO Negotiation Confirmation is sent 143 */ 144 int go_neg_conf_freq; 145 146 /** 147 * go_neg_conf - GO Negotiation Confirmation frame 148 */ 149 struct wpabuf *go_neg_conf; 150 151 int sd_pending_bcast_queries; 152 }; 153 154 struct p2p_sd_query { 155 struct p2p_sd_query *next; 156 u8 peer[ETH_ALEN]; 157 int for_all_peers; 158 int wsd; /* Wi-Fi Display Service Discovery Request */ 159 struct wpabuf *tlvs; 160 }; 161 162 /** 163 * struct p2p_data - P2P module data (internal to P2P module) 164 */ 165 struct p2p_data { 166 /** 167 * cfg - P2P module configuration 168 * 169 * This is included in the same memory allocation with the 170 * struct p2p_data and as such, must not be freed separately. 171 */ 172 struct p2p_config *cfg; 173 174 /** 175 * state - The current P2P state 176 */ 177 enum p2p_state { 178 /** 179 * P2P_IDLE - Idle 180 */ 181 P2P_IDLE, 182 183 /** 184 * P2P_SEARCH - Search (Device Discovery) 185 */ 186 P2P_SEARCH, 187 188 /** 189 * P2P_CONNECT - Trying to start GO Negotiation 190 */ 191 P2P_CONNECT, 192 193 /** 194 * P2P_CONNECT_LISTEN - Listen during GO Negotiation start 195 */ 196 P2P_CONNECT_LISTEN, 197 198 /** 199 * P2P_GO_NEG - In GO Negotiation 200 */ 201 P2P_GO_NEG, 202 203 /** 204 * P2P_LISTEN_ONLY - Listen only 205 */ 206 P2P_LISTEN_ONLY, 207 208 /** 209 * P2P_WAIT_PEER_CONNECT - Waiting peer in List for GO Neg 210 */ 211 P2P_WAIT_PEER_CONNECT, 212 213 /** 214 * P2P_WAIT_PEER_IDLE - Waiting peer idle for GO Neg 215 */ 216 P2P_WAIT_PEER_IDLE, 217 218 /** 219 * P2P_SD_DURING_FIND - Service Discovery during find 220 */ 221 P2P_SD_DURING_FIND, 222 223 /** 224 * P2P_PROVISIONING - Provisioning (during group formation) 225 */ 226 P2P_PROVISIONING, 227 228 /** 229 * P2P_PD_DURING_FIND - Provision Discovery during find 230 */ 231 P2P_PD_DURING_FIND, 232 233 /** 234 * P2P_INVITE - Trying to start Invite 235 */ 236 P2P_INVITE, 237 238 /** 239 * P2P_INVITE_LISTEN - Listen during Invite 240 */ 241 P2P_INVITE_LISTEN, 242 } state; 243 244 /** 245 * min_disc_int - minDiscoverableInterval 246 */ 247 int min_disc_int; 248 249 /** 250 * max_disc_int - maxDiscoverableInterval 251 */ 252 int max_disc_int; 253 254 /** 255 * max_disc_tu - Maximum number of TUs for discoverable interval 256 */ 257 int max_disc_tu; 258 259 /** 260 * devices - List of known P2P Device peers 261 */ 262 struct dl_list devices; 263 264 /** 265 * go_neg_peer - Pointer to GO Negotiation peer 266 */ 267 struct p2p_device *go_neg_peer; 268 269 /** 270 * invite_peer - Pointer to Invite peer 271 */ 272 struct p2p_device *invite_peer; 273 274 /** 275 * last_p2p_find_oper - Pointer to last pre-find operation peer 276 */ 277 struct p2p_device *last_p2p_find_oper; 278 279 const u8 *invite_go_dev_addr; 280 u8 invite_go_dev_addr_buf[ETH_ALEN]; 281 int invite_dev_pw_id; 282 283 unsigned int retry_invite_req:1; 284 unsigned int retry_invite_req_sent:1; 285 286 /** 287 * sd_peer - Pointer to Service Discovery peer 288 */ 289 struct p2p_device *sd_peer; 290 291 /** 292 * sd_query - Pointer to Service Discovery query 293 */ 294 struct p2p_sd_query *sd_query; 295 296 /** 297 * num_p2p_sd_queries - Total number of broadcast SD queries present in 298 * the list 299 */ 300 int num_p2p_sd_queries; 301 302 /** 303 * sd_query_no_ack - The first peer (Dev Addr) that did not ACK SD Query 304 * 305 * This is used to track the first peer that did not ACK an SD Query 306 * within a single P2P Search iteration. All zeros address means no such 307 * peer was yet seen. This information is used to allow a new Listen and 308 * Search phases to be once every pending SD Query has been sent once to 309 * each peer instead of looping all pending attempts continuously until 310 * running out of retry maximums. 311 */ 312 u8 sd_query_no_ack[ETH_ALEN]; 313 314 /* GO Negotiation data */ 315 316 /** 317 * intended_addr - Local Intended P2P Interface Address 318 * 319 * This address is used during group owner negotiation as the Intended 320 * P2P Interface Address and the group interface will be created with 321 * address as the local address in case of successfully completed 322 * negotiation. 323 */ 324 u8 intended_addr[ETH_ALEN]; 325 326 /** 327 * go_intent - Local GO Intent to be used during GO Negotiation 328 */ 329 u8 go_intent; 330 331 /** 332 * next_tie_breaker - Next tie-breaker value to use in GO Negotiation 333 */ 334 u8 next_tie_breaker; 335 336 /** 337 * ssid - Selected SSID for GO Negotiation (if local end will be GO) 338 */ 339 u8 ssid[SSID_MAX_LEN]; 340 341 /** 342 * ssid_len - ssid length in octets 343 */ 344 size_t ssid_len; 345 346 /** 347 * ssid_set - Whether SSID is already set for GO Negotiation 348 */ 349 int ssid_set; 350 351 /** 352 * passphrase - WPA2-Personal passphrase for GO Negotiation (if local end will be GO) 353 */ 354 char passphrase[MAX_PASSPHRASE_LEN + 1]; 355 356 /** 357 * passphrase_set - Whether passphrase is already set for GO Negotiation 358 */ 359 int passphrase_set; 360 361 /** 362 * Regulatory class for own operational channel 363 */ 364 u8 op_reg_class; 365 366 /** 367 * op_channel - Own operational channel 368 */ 369 u8 op_channel; 370 371 /** 372 * channels - Own supported regulatory classes and channels 373 * 374 * List of supposerted channels per regulatory class. The regulatory 375 * classes are defined in IEEE Std 802.11-2007 Annex J and the 376 * numbering of the clases depends on the configured country code. 377 */ 378 struct p2p_channels channels; 379 380 struct wpa_freq_range_list no_go_freq; 381 382 enum p2p_pending_action_state { 383 P2P_NO_PENDING_ACTION, 384 P2P_PENDING_GO_NEG_REQUEST, 385 P2P_PENDING_GO_NEG_RESPONSE, 386 P2P_PENDING_GO_NEG_RESPONSE_FAILURE, 387 P2P_PENDING_GO_NEG_CONFIRM, 388 P2P_PENDING_SD, 389 P2P_PENDING_PD, 390 P2P_PENDING_PD_RESPONSE, 391 P2P_PENDING_INVITATION_REQUEST, 392 P2P_PENDING_INVITATION_RESPONSE, 393 P2P_PENDING_DEV_DISC_REQUEST, 394 P2P_PENDING_DEV_DISC_RESPONSE, 395 P2P_PENDING_GO_DISC_REQ 396 } pending_action_state; 397 398 unsigned int pending_listen_freq; 399 unsigned int pending_listen_sec; 400 unsigned int pending_listen_usec; 401 402 u8 dev_capab; 403 404 int in_listen; 405 int drv_in_listen; 406 407 /** 408 * sd_queries - Pending service discovery queries 409 */ 410 struct p2p_sd_query *sd_queries; 411 412 /** 413 * srv_update_indic - Service Update Indicator for local services 414 */ 415 u16 srv_update_indic; 416 417 struct wpabuf *sd_resp; /* Fragmented SD response */ 418 u8 sd_resp_addr[ETH_ALEN]; 419 u8 sd_resp_dialog_token; 420 size_t sd_resp_pos; /* Offset in sd_resp */ 421 u8 sd_frag_id; 422 423 struct wpabuf *sd_rx_resp; /* Reassembled SD response */ 424 u16 sd_rx_update_indic; 425 426 /* P2P Invitation data */ 427 enum p2p_invite_role inv_role; 428 u8 inv_bssid[ETH_ALEN]; 429 int inv_bssid_set; 430 u8 inv_ssid[SSID_MAX_LEN]; 431 size_t inv_ssid_len; 432 u8 inv_sa[ETH_ALEN]; 433 u8 inv_group_bssid[ETH_ALEN]; 434 u8 *inv_group_bssid_ptr; 435 u8 inv_go_dev_addr[ETH_ALEN]; 436 u8 inv_status; 437 int inv_op_freq; 438 int inv_persistent; 439 440 enum p2p_discovery_type find_type; 441 int find_specified_freq; 442 unsigned int last_p2p_find_timeout; 443 u8 last_prog_scan_class; 444 u8 last_prog_scan_chan; 445 unsigned int find_pending_full:1; 446 int p2p_scan_running; 447 enum p2p_after_scan { 448 P2P_AFTER_SCAN_NOTHING, 449 P2P_AFTER_SCAN_LISTEN, 450 P2P_AFTER_SCAN_CONNECT 451 } start_after_scan; 452 u8 after_scan_peer[ETH_ALEN]; 453 unsigned int send_action_in_progress:1; 454 455 /* Requested device types for find/search */ 456 unsigned int num_req_dev_types; 457 u8 *req_dev_types; 458 u8 *find_dev_id; 459 u8 find_dev_id_buf[ETH_ALEN]; 460 461 struct os_reltime find_start; /* time of last p2p_find start */ 462 463 struct p2p_group **groups; 464 size_t num_groups; 465 466 struct p2p_device *pending_client_disc_go; 467 u8 pending_client_disc_addr[ETH_ALEN]; 468 u8 pending_dev_disc_dialog_token; 469 u8 pending_dev_disc_addr[ETH_ALEN]; 470 int pending_dev_disc_freq; 471 unsigned int pending_client_disc_freq; 472 473 int ext_listen_only; 474 unsigned int ext_listen_period; 475 unsigned int ext_listen_interval; 476 unsigned int ext_listen_interval_sec; 477 unsigned int ext_listen_interval_usec; 478 479 u8 peer_filter[ETH_ALEN]; 480 481 int cross_connect; 482 483 int best_freq_24; 484 int best_freq_5; 485 int best_freq_overall; 486 int own_freq_preference; 487 488 /** 489 * wps_vendor_ext - WPS Vendor Extensions to add 490 */ 491 struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT]; 492 493 /* 494 * user_initiated_pd - Whether a PD request is user initiated or not. 495 */ 496 u8 user_initiated_pd; 497 498 /* 499 * Keep track of which peer a given PD request was sent to. 500 * Used to raise a timeout alert in case there is no response. 501 */ 502 u8 pending_pd_devaddr[ETH_ALEN]; 503 504 /* 505 * Retry counter for provision discovery requests when issued 506 * in IDLE state. 507 */ 508 int pd_retries; 509 510 /** 511 * pd_force_freq - Forced frequency for PD retries or 0 to auto-select 512 * 513 * This is is used during PD retries for join-a-group case to use the 514 * correct operating frequency determined from a BSS entry for the GO. 515 */ 516 int pd_force_freq; 517 518 u8 go_timeout; 519 u8 client_timeout; 520 521 /* Extra delay in milliseconds between search iterations */ 522 unsigned int search_delay; 523 int in_search_delay; 524 525 u8 pending_reg_class; 526 u8 pending_channel; 527 u8 pending_channel_forced; 528 529 /* ASP Support */ 530 struct p2ps_advertisement *p2ps_adv_list; 531 struct p2ps_provision *p2ps_prov; 532 u8 wild_card_hash[P2PS_HASH_LEN]; 533 u8 p2ps_seek; 534 u8 p2ps_seek_hash[P2P_MAX_QUERY_HASH * P2PS_HASH_LEN]; 535 u8 p2ps_seek_count; 536 537 #ifdef CONFIG_WIFI_DISPLAY 538 struct wpabuf *wfd_ie_beacon; 539 struct wpabuf *wfd_ie_probe_req; 540 struct wpabuf *wfd_ie_probe_resp; 541 struct wpabuf *wfd_ie_assoc_req; 542 struct wpabuf *wfd_ie_invitation; 543 struct wpabuf *wfd_ie_prov_disc_req; 544 struct wpabuf *wfd_ie_prov_disc_resp; 545 struct wpabuf *wfd_ie_go_neg; 546 struct wpabuf *wfd_dev_info; 547 struct wpabuf *wfd_assoc_bssid; 548 struct wpabuf *wfd_coupled_sink_info; 549 struct wpabuf *wfd_r2_dev_info; 550 #endif /* CONFIG_WIFI_DISPLAY */ 551 552 u16 authorized_oob_dev_pw_id; 553 554 struct wpabuf **vendor_elem; 555 556 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS]; 557 unsigned int num_pref_freq; 558 559 /* Override option for preferred operating channel in GO Negotiation */ 560 u8 override_pref_op_class; 561 u8 override_pref_channel; 562 }; 563 564 /** 565 * struct p2p_message - Parsed P2P message (or P2P IE) 566 */ 567 struct p2p_message { 568 struct wpabuf *p2p_attributes; 569 struct wpabuf *wps_attributes; 570 struct wpabuf *wfd_subelems; 571 572 u8 dialog_token; 573 574 const u8 *capability; 575 const u8 *go_intent; 576 const u8 *status; 577 const u8 *listen_channel; 578 const u8 *operating_channel; 579 const u8 *channel_list; 580 u8 channel_list_len; 581 const u8 *config_timeout; 582 const u8 *intended_addr; 583 const u8 *group_bssid; 584 const u8 *invitation_flags; 585 586 const u8 *group_info; 587 size_t group_info_len; 588 589 const u8 *group_id; 590 size_t group_id_len; 591 592 const u8 *device_id; 593 594 const u8 *manageability; 595 596 const u8 *noa; 597 size_t noa_len; 598 599 const u8 *ext_listen_timing; 600 601 const u8 *minor_reason_code; 602 603 const u8 *oob_go_neg_channel; 604 605 /* P2P Device Info */ 606 const u8 *p2p_device_info; 607 size_t p2p_device_info_len; 608 const u8 *p2p_device_addr; 609 const u8 *pri_dev_type; 610 u8 num_sec_dev_types; 611 char device_name[WPS_DEV_NAME_MAX_LEN + 1]; 612 u16 config_methods; 613 614 /* WPS IE */ 615 u16 dev_password_id; 616 int dev_password_id_present; 617 u16 wps_config_methods; 618 const u8 *wps_pri_dev_type; 619 const u8 *wps_sec_dev_type_list; 620 size_t wps_sec_dev_type_list_len; 621 const u8 *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT]; 622 size_t wps_vendor_ext_len[P2P_MAX_WPS_VENDOR_EXT]; 623 const u8 *manufacturer; 624 size_t manufacturer_len; 625 const u8 *model_name; 626 size_t model_name_len; 627 const u8 *model_number; 628 size_t model_number_len; 629 const u8 *serial_number; 630 size_t serial_number_len; 631 const u8 *oob_dev_password; 632 size_t oob_dev_password_len; 633 634 /* DS Parameter Set IE */ 635 const u8 *ds_params; 636 637 /* SSID IE */ 638 const u8 *ssid; 639 640 /* P2PS */ 641 u8 service_hash_count; 642 const u8 *service_hash; 643 644 const u8 *session_info; 645 size_t session_info_len; 646 647 const u8 *conn_cap; 648 649 const u8 *adv_id; 650 const u8 *adv_mac; 651 652 const u8 *adv_service_instance; 653 size_t adv_service_instance_len; 654 655 const u8 *session_id; 656 const u8 *session_mac; 657 658 const u8 *feature_cap; 659 size_t feature_cap_len; 660 661 const u8 *persistent_dev; 662 const u8 *persistent_ssid; 663 size_t persistent_ssid_len; 664 665 const u8 *pref_freq_list; 666 size_t pref_freq_list_len; 667 }; 668 669 670 #define P2P_MAX_GROUP_ENTRIES 50 671 672 struct p2p_group_info { 673 unsigned int num_clients; 674 struct p2p_client_info { 675 const u8 *p2p_device_addr; 676 const u8 *p2p_interface_addr; 677 u8 dev_capab; 678 u16 config_methods; 679 const u8 *pri_dev_type; 680 u8 num_sec_dev_types; 681 const u8 *sec_dev_types; 682 const char *dev_name; 683 size_t dev_name_len; 684 } client[P2P_MAX_GROUP_ENTRIES]; 685 }; 686 687 688 /* p2p_utils.c */ 689 int p2p_random(char *buf, size_t len); 690 int p2p_channel_to_freq(int op_class, int channel); 691 int p2p_freq_to_channel(unsigned int freq, u8 *op_class, u8 *channel); 692 void p2p_channels_intersect(const struct p2p_channels *a, 693 const struct p2p_channels *b, 694 struct p2p_channels *res); 695 void p2p_channels_union_inplace(struct p2p_channels *res, 696 const struct p2p_channels *b); 697 void p2p_channels_union(const struct p2p_channels *a, 698 const struct p2p_channels *b, 699 struct p2p_channels *res); 700 void p2p_channels_remove_freqs(struct p2p_channels *chan, 701 const struct wpa_freq_range_list *list); 702 int p2p_channels_includes(const struct p2p_channels *channels, u8 reg_class, 703 u8 channel); 704 void p2p_channels_dump(struct p2p_data *p2p, const char *title, 705 const struct p2p_channels *chan); 706 int p2p_channel_select(struct p2p_channels *chans, const int *classes, 707 u8 *op_class, u8 *op_channel); 708 int p2p_channel_random_social(struct p2p_channels *chans, u8 *op_class, 709 u8 *op_channel, 710 struct wpa_freq_range_list *avoid_list, 711 struct wpa_freq_range_list *disallow_list); 712 713 /* p2p_parse.c */ 714 void p2p_copy_filter_devname(char *dst, size_t dst_len, 715 const void *src, size_t src_len); 716 int p2p_parse_p2p_ie(const struct wpabuf *buf, struct p2p_message *msg); 717 int p2p_parse_ies(const u8 *data, size_t len, struct p2p_message *msg); 718 int p2p_parse(const u8 *data, size_t len, struct p2p_message *msg); 719 int p2p_parse_ies_separate(const u8 *wsc, size_t wsc_len, const u8 *p2p, 720 size_t p2p_len, struct p2p_message *msg); 721 void p2p_parse_free(struct p2p_message *msg); 722 int p2p_attr_text(struct wpabuf *data, char *buf, char *end); 723 int p2p_group_info_parse(const u8 *gi, size_t gi_len, 724 struct p2p_group_info *info); 725 726 /* p2p_build.c */ 727 728 struct p2p_noa_desc { 729 u8 count_type; 730 u32 duration; 731 u32 interval; 732 u32 start_time; 733 }; 734 735 /* p2p_group.c */ 736 const u8 * p2p_group_get_interface_addr(struct p2p_group *group); 737 u8 p2p_group_presence_req(struct p2p_group *group, 738 const u8 *client_interface_addr, 739 const u8 *noa, size_t noa_len); 740 int p2p_group_is_group_id_match(struct p2p_group *group, const u8 *group_id, 741 size_t group_id_len); 742 void p2p_group_update_ies(struct p2p_group *group); 743 void p2p_group_force_beacon_update_ies(struct p2p_group *group); 744 struct wpabuf * p2p_group_get_wfd_ie(struct p2p_group *g); 745 void p2p_buf_add_group_info(struct p2p_group *group, struct wpabuf *buf, 746 int max_clients); 747 void p2p_group_buf_add_id(struct p2p_group *group, struct wpabuf *buf); 748 int p2p_group_get_freq(struct p2p_group *group); 749 750 751 void p2p_buf_add_action_hdr(struct wpabuf *buf, u8 subtype, u8 dialog_token); 752 void p2p_buf_add_public_action_hdr(struct wpabuf *buf, u8 subtype, 753 u8 dialog_token); 754 u8 * p2p_buf_add_ie_hdr(struct wpabuf *buf); 755 void p2p_buf_add_status(struct wpabuf *buf, u8 status); 756 void p2p_buf_add_device_info(struct wpabuf *buf, struct p2p_data *p2p, 757 struct p2p_device *peer); 758 void p2p_buf_add_device_id(struct wpabuf *buf, const u8 *dev_addr); 759 void p2p_buf_update_ie_hdr(struct wpabuf *buf, u8 *len); 760 void p2p_buf_add_capability(struct wpabuf *buf, u8 dev_capab, u8 group_capab); 761 void p2p_buf_add_go_intent(struct wpabuf *buf, u8 go_intent); 762 void p2p_buf_add_listen_channel(struct wpabuf *buf, const char *country, 763 u8 reg_class, u8 channel); 764 void p2p_buf_add_operating_channel(struct wpabuf *buf, const char *country, 765 u8 reg_class, u8 channel); 766 void p2p_buf_add_channel_list(struct wpabuf *buf, const char *country, 767 struct p2p_channels *chan); 768 void p2p_buf_add_config_timeout(struct wpabuf *buf, u8 go_timeout, 769 u8 client_timeout); 770 void p2p_buf_add_intended_addr(struct wpabuf *buf, const u8 *interface_addr); 771 void p2p_buf_add_group_bssid(struct wpabuf *buf, const u8 *bssid); 772 void p2p_buf_add_group_id(struct wpabuf *buf, const u8 *dev_addr, 773 const u8 *ssid, size_t ssid_len); 774 void p2p_buf_add_invitation_flags(struct wpabuf *buf, u8 flags); 775 void p2p_buf_add_noa(struct wpabuf *buf, u8 noa_index, u8 opp_ps, u8 ctwindow, 776 struct p2p_noa_desc *desc1, struct p2p_noa_desc *desc2); 777 void p2p_buf_add_ext_listen_timing(struct wpabuf *buf, u16 period, 778 u16 interval); 779 void p2p_buf_add_p2p_interface(struct wpabuf *buf, struct p2p_data *p2p); 780 void p2p_buf_add_oob_go_neg_channel(struct wpabuf *buf, const char *country, 781 u8 oper_class, u8 channel, 782 enum p2p_role_indication role); 783 void p2p_buf_add_service_hash(struct wpabuf *buf, struct p2p_data *p2p); 784 void p2p_buf_add_session_info(struct wpabuf *buf, const char *info); 785 void p2p_buf_add_connection_capability(struct wpabuf *buf, u8 connection_cap); 786 void p2p_buf_add_advertisement_id(struct wpabuf *buf, u32 id, const u8 *mac); 787 void p2p_buf_add_service_instance(struct wpabuf *buf, struct p2p_data *p2p, 788 u8 count, const u8 *hash, 789 struct p2ps_advertisement *adv_list); 790 void p2p_buf_add_session_id(struct wpabuf *buf, u32 id, const u8 *mac); 791 void p2p_buf_add_feature_capability(struct wpabuf *buf, u16 len, 792 const u8 *mask); 793 void p2p_buf_add_persistent_group_info(struct wpabuf *buf, const u8 *dev_addr, 794 const u8 *ssid, size_t ssid_len); 795 int p2p_build_wps_ie(struct p2p_data *p2p, struct wpabuf *buf, int pw_id, 796 int all_attr); 797 void p2p_buf_add_pref_channel_list(struct wpabuf *buf, 798 const u32 *preferred_freq_list, u32 size); 799 800 /* p2p_sd.c */ 801 struct p2p_sd_query * p2p_pending_sd_req(struct p2p_data *p2p, 802 struct p2p_device *dev); 803 void p2p_free_sd_queries(struct p2p_data *p2p); 804 void p2p_rx_gas_initial_req(struct p2p_data *p2p, const u8 *sa, 805 const u8 *data, size_t len, int rx_freq); 806 void p2p_rx_gas_initial_resp(struct p2p_data *p2p, const u8 *sa, 807 const u8 *data, size_t len, int rx_freq); 808 void p2p_rx_gas_comeback_req(struct p2p_data *p2p, const u8 *sa, 809 const u8 *data, size_t len, int rx_freq); 810 void p2p_rx_gas_comeback_resp(struct p2p_data *p2p, const u8 *sa, 811 const u8 *data, size_t len, int rx_freq); 812 int p2p_start_sd(struct p2p_data *p2p, struct p2p_device *dev); 813 814 /* p2p_go_neg.c */ 815 int p2p_peer_channels_check(struct p2p_data *p2p, struct p2p_channels *own, 816 struct p2p_device *dev, 817 const u8 *channel_list, size_t channel_list_len); 818 void p2p_process_go_neg_req(struct p2p_data *p2p, const u8 *sa, 819 const u8 *data, size_t len, int rx_freq); 820 void p2p_process_go_neg_resp(struct p2p_data *p2p, const u8 *sa, 821 const u8 *data, size_t len, int rx_freq); 822 void p2p_process_go_neg_conf(struct p2p_data *p2p, const u8 *sa, 823 const u8 *data, size_t len); 824 int p2p_connect_send(struct p2p_data *p2p, struct p2p_device *dev); 825 u16 p2p_wps_method_pw_id(enum p2p_wps_method wps_method); 826 void p2p_reselect_channel(struct p2p_data *p2p, 827 struct p2p_channels *intersection); 828 void p2p_check_pref_chan(struct p2p_data *p2p, int go, 829 struct p2p_device *dev, struct p2p_message *msg); 830 831 /* p2p_pd.c */ 832 void p2p_process_prov_disc_req(struct p2p_data *p2p, const u8 *sa, 833 const u8 *data, size_t len, int rx_freq); 834 void p2p_process_prov_disc_resp(struct p2p_data *p2p, const u8 *sa, 835 const u8 *data, size_t len); 836 int p2p_send_prov_disc_req(struct p2p_data *p2p, struct p2p_device *dev, 837 int join, int force_freq); 838 void p2p_reset_pending_pd(struct p2p_data *p2p); 839 void p2ps_prov_free(struct p2p_data *p2p); 840 841 /* p2p_invitation.c */ 842 void p2p_process_invitation_req(struct p2p_data *p2p, const u8 *sa, 843 const u8 *data, size_t len, int rx_freq); 844 void p2p_process_invitation_resp(struct p2p_data *p2p, const u8 *sa, 845 const u8 *data, size_t len); 846 int p2p_invite_send(struct p2p_data *p2p, struct p2p_device *dev, 847 const u8 *go_dev_addr, int dev_pw_id); 848 void p2p_invitation_req_cb(struct p2p_data *p2p, int success); 849 void p2p_invitation_resp_cb(struct p2p_data *p2p, int success); 850 851 /* p2p_dev_disc.c */ 852 void p2p_process_dev_disc_req(struct p2p_data *p2p, const u8 *sa, 853 const u8 *data, size_t len, int rx_freq); 854 void p2p_dev_disc_req_cb(struct p2p_data *p2p, int success); 855 int p2p_send_dev_disc_req(struct p2p_data *p2p, struct p2p_device *dev); 856 void p2p_dev_disc_resp_cb(struct p2p_data *p2p, int success); 857 void p2p_process_dev_disc_resp(struct p2p_data *p2p, const u8 *sa, 858 const u8 *data, size_t len); 859 void p2p_go_disc_req_cb(struct p2p_data *p2p, int success); 860 void p2p_process_go_disc_req(struct p2p_data *p2p, const u8 *da, const u8 *sa, 861 const u8 *data, size_t len, int rx_freq); 862 863 /* p2p.c */ 864 void p2p_set_state(struct p2p_data *p2p, int new_state); 865 void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, 866 unsigned int usec); 867 void p2p_clear_timeout(struct p2p_data *p2p); 868 void p2p_continue_find(struct p2p_data *p2p); 869 struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p, 870 const u8 *addr, 871 struct p2p_message *msg); 872 void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr, 873 struct p2p_device *dev, struct p2p_message *msg); 874 int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq, 875 struct os_reltime *rx_time, int level, const u8 *ies, 876 size_t ies_len, int scan_res); 877 struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr); 878 struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p, 879 const u8 *addr); 880 void p2p_go_neg_failed(struct p2p_data *p2p, int status); 881 void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer); 882 int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps); 883 int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[], 884 size_t num_req_dev_type); 885 struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p, 886 const u8 *query_hash, 887 u8 query_count); 888 void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len); 889 int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst, 890 const u8 *src, const u8 *bssid, const u8 *buf, 891 size_t len, unsigned int wait_time); 892 void p2p_stop_listen_for_freq(struct p2p_data *p2p, int freq); 893 int p2p_prepare_channel(struct p2p_data *p2p, struct p2p_device *dev, 894 unsigned int force_freq, unsigned int pref_freq, 895 int go); 896 void p2p_go_neg_wait_timeout(void *eloop_ctx, void *timeout_ctx); 897 int p2p_go_select_channel(struct p2p_data *p2p, struct p2p_device *dev, 898 u8 *status); 899 void p2p_dbg(struct p2p_data *p2p, const char *fmt, ...) 900 PRINTF_FORMAT(2, 3); 901 void p2p_info(struct p2p_data *p2p, const char *fmt, ...) 902 PRINTF_FORMAT(2, 3); 903 void p2p_err(struct p2p_data *p2p, const char *fmt, ...) 904 PRINTF_FORMAT(2, 3); 905 906 #endif /* P2P_I_H */ 907