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