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 struct p2p_pending_action_tx { 163 unsigned int freq; 164 u8 dst[ETH_ALEN]; 165 u8 src[ETH_ALEN]; 166 u8 bssid[ETH_ALEN]; 167 size_t len; 168 unsigned int wait_time; 169 /* Followed by len octets of the frame */ 170 }; 171 172 /** 173 * struct p2p_data - P2P module data (internal to P2P module) 174 */ 175 struct p2p_data { 176 /** 177 * cfg - P2P module configuration 178 * 179 * This is included in the same memory allocation with the 180 * struct p2p_data and as such, must not be freed separately. 181 */ 182 struct p2p_config *cfg; 183 184 /** 185 * state - The current P2P state 186 */ 187 enum p2p_state { 188 /** 189 * P2P_IDLE - Idle 190 */ 191 P2P_IDLE, 192 193 /** 194 * P2P_SEARCH - Search (Device Discovery) 195 */ 196 P2P_SEARCH, 197 198 /** 199 * P2P_CONNECT - Trying to start GO Negotiation 200 */ 201 P2P_CONNECT, 202 203 /** 204 * P2P_CONNECT_LISTEN - Listen during GO Negotiation start 205 */ 206 P2P_CONNECT_LISTEN, 207 208 /** 209 * P2P_GO_NEG - In GO Negotiation 210 */ 211 P2P_GO_NEG, 212 213 /** 214 * P2P_LISTEN_ONLY - Listen only 215 */ 216 P2P_LISTEN_ONLY, 217 218 /** 219 * P2P_WAIT_PEER_CONNECT - Waiting peer in List for GO Neg 220 */ 221 P2P_WAIT_PEER_CONNECT, 222 223 /** 224 * P2P_WAIT_PEER_IDLE - Waiting peer idle for GO Neg 225 */ 226 P2P_WAIT_PEER_IDLE, 227 228 /** 229 * P2P_SD_DURING_FIND - Service Discovery during find 230 */ 231 P2P_SD_DURING_FIND, 232 233 /** 234 * P2P_PROVISIONING - Provisioning (during group formation) 235 */ 236 P2P_PROVISIONING, 237 238 /** 239 * P2P_PD_DURING_FIND - Provision Discovery during find 240 */ 241 P2P_PD_DURING_FIND, 242 243 /** 244 * P2P_INVITE - Trying to start Invite 245 */ 246 P2P_INVITE, 247 248 /** 249 * P2P_INVITE_LISTEN - Listen during Invite 250 */ 251 P2P_INVITE_LISTEN, 252 } state; 253 254 /** 255 * min_disc_int - minDiscoverableInterval 256 */ 257 int min_disc_int; 258 259 /** 260 * max_disc_int - maxDiscoverableInterval 261 */ 262 int max_disc_int; 263 264 /** 265 * max_disc_tu - Maximum number of TUs for discoverable interval 266 */ 267 int max_disc_tu; 268 269 /** 270 * devices - List of known P2P Device peers 271 */ 272 struct dl_list devices; 273 274 /** 275 * go_neg_peer - Pointer to GO Negotiation peer 276 */ 277 struct p2p_device *go_neg_peer; 278 279 /** 280 * invite_peer - Pointer to Invite peer 281 */ 282 struct p2p_device *invite_peer; 283 284 /** 285 * last_p2p_find_oper - Pointer to last pre-find operation peer 286 */ 287 struct p2p_device *last_p2p_find_oper; 288 289 const u8 *invite_go_dev_addr; 290 u8 invite_go_dev_addr_buf[ETH_ALEN]; 291 int invite_dev_pw_id; 292 293 unsigned int retry_invite_req:1; 294 unsigned int retry_invite_req_sent:1; 295 296 /** 297 * sd_peer - Pointer to Service Discovery peer 298 */ 299 struct p2p_device *sd_peer; 300 301 /** 302 * sd_query - Pointer to Service Discovery query 303 */ 304 struct p2p_sd_query *sd_query; 305 306 /** 307 * num_p2p_sd_queries - Total number of broadcast SD queries present in 308 * the list 309 */ 310 int num_p2p_sd_queries; 311 312 /** 313 * sd_query_no_ack - The first peer (Dev Addr) that did not ACK SD Query 314 * 315 * This is used to track the first peer that did not ACK an SD Query 316 * within a single P2P Search iteration. All zeros address means no such 317 * peer was yet seen. This information is used to allow a new Listen and 318 * Search phases to be once every pending SD Query has been sent once to 319 * each peer instead of looping all pending attempts continuously until 320 * running out of retry maximums. 321 */ 322 u8 sd_query_no_ack[ETH_ALEN]; 323 324 /* GO Negotiation data */ 325 326 /** 327 * intended_addr - Local Intended P2P Interface Address 328 * 329 * This address is used during group owner negotiation as the Intended 330 * P2P Interface Address and the group interface will be created with 331 * address as the local address in case of successfully completed 332 * negotiation. 333 */ 334 u8 intended_addr[ETH_ALEN]; 335 336 /** 337 * go_intent - Local GO Intent to be used during GO Negotiation 338 */ 339 u8 go_intent; 340 341 /** 342 * next_tie_breaker - Next tie-breaker value to use in GO Negotiation 343 */ 344 u8 next_tie_breaker; 345 346 /** 347 * ssid - Selected SSID for GO Negotiation (if local end will be GO) 348 */ 349 u8 ssid[SSID_MAX_LEN]; 350 351 /** 352 * ssid_len - ssid length in octets 353 */ 354 size_t ssid_len; 355 356 /** 357 * ssid_set - Whether SSID is already set for GO Negotiation 358 */ 359 int ssid_set; 360 361 /** 362 * passphrase - WPA2-Personal passphrase for GO Negotiation (if local end will be GO) 363 */ 364 char passphrase[MAX_PASSPHRASE_LEN + 1]; 365 366 /** 367 * passphrase_set - Whether passphrase is already set for GO Negotiation 368 */ 369 int passphrase_set; 370 371 /** 372 * Regulatory class for own operational channel 373 */ 374 u8 op_reg_class; 375 376 /** 377 * op_channel - Own operational channel 378 */ 379 u8 op_channel; 380 381 /** 382 * channels - Own supported regulatory classes and channels 383 * 384 * List of supposerted channels per regulatory class. The regulatory 385 * classes are defined in IEEE Std 802.11-2007 Annex J and the 386 * numbering of the clases depends on the configured country code. 387 */ 388 struct p2p_channels channels; 389 390 struct wpa_freq_range_list no_go_freq; 391 392 enum p2p_pending_action_state { 393 P2P_NO_PENDING_ACTION, 394 P2P_PENDING_GO_NEG_REQUEST, 395 P2P_PENDING_GO_NEG_RESPONSE, 396 P2P_PENDING_GO_NEG_RESPONSE_FAILURE, 397 P2P_PENDING_GO_NEG_CONFIRM, 398 P2P_PENDING_SD, 399 P2P_PENDING_PD, 400 P2P_PENDING_PD_RESPONSE, 401 P2P_PENDING_INVITATION_REQUEST, 402 P2P_PENDING_INVITATION_RESPONSE, 403 P2P_PENDING_DEV_DISC_REQUEST, 404 P2P_PENDING_DEV_DISC_RESPONSE, 405 P2P_PENDING_GO_DISC_REQ 406 } pending_action_state; 407 408 unsigned int pending_listen_freq; 409 unsigned int pending_listen_sec; 410 unsigned int pending_listen_usec; 411 412 u8 dev_capab; 413 414 int in_listen; 415 int drv_in_listen; 416 417 /** 418 * sd_queries - Pending service discovery queries 419 */ 420 struct p2p_sd_query *sd_queries; 421 422 /** 423 * srv_update_indic - Service Update Indicator for local services 424 */ 425 u16 srv_update_indic; 426 427 struct wpabuf *sd_resp; /* Fragmented SD response */ 428 u8 sd_resp_addr[ETH_ALEN]; 429 u8 sd_resp_dialog_token; 430 size_t sd_resp_pos; /* Offset in sd_resp */ 431 u8 sd_frag_id; 432 433 struct wpabuf *sd_rx_resp; /* Reassembled SD response */ 434 u16 sd_rx_update_indic; 435 436 /* P2P Invitation data */ 437 enum p2p_invite_role inv_role; 438 u8 inv_bssid[ETH_ALEN]; 439 int inv_bssid_set; 440 u8 inv_ssid[SSID_MAX_LEN]; 441 size_t inv_ssid_len; 442 u8 inv_sa[ETH_ALEN]; 443 u8 inv_group_bssid[ETH_ALEN]; 444 u8 *inv_group_bssid_ptr; 445 u8 inv_go_dev_addr[ETH_ALEN]; 446 u8 inv_status; 447 int inv_op_freq; 448 int inv_persistent; 449 450 enum p2p_discovery_type find_type; 451 int find_specified_freq; 452 unsigned int last_p2p_find_timeout; 453 u8 last_prog_scan_class; 454 u8 last_prog_scan_chan; 455 unsigned int find_pending_full:1; 456 int p2p_scan_running; 457 enum p2p_after_scan { 458 P2P_AFTER_SCAN_NOTHING, 459 P2P_AFTER_SCAN_LISTEN, 460 P2P_AFTER_SCAN_CONNECT 461 } start_after_scan; 462 u8 after_scan_peer[ETH_ALEN]; 463 struct p2p_pending_action_tx *after_scan_tx; 464 unsigned int after_scan_tx_in_progress:1; 465 unsigned int send_action_in_progress:1; 466 467 /* Requested device types for find/search */ 468 unsigned int num_req_dev_types; 469 u8 *req_dev_types; 470 u8 *find_dev_id; 471 u8 find_dev_id_buf[ETH_ALEN]; 472 473 struct os_reltime find_start; /* time of last p2p_find start */ 474 475 struct p2p_group **groups; 476 size_t num_groups; 477 478 struct p2p_device *pending_client_disc_go; 479 u8 pending_client_disc_addr[ETH_ALEN]; 480 u8 pending_dev_disc_dialog_token; 481 u8 pending_dev_disc_addr[ETH_ALEN]; 482 int pending_dev_disc_freq; 483 unsigned int pending_client_disc_freq; 484 485 int ext_listen_only; 486 unsigned int ext_listen_period; 487 unsigned int ext_listen_interval; 488 unsigned int ext_listen_interval_sec; 489 unsigned int ext_listen_interval_usec; 490 491 u8 peer_filter[ETH_ALEN]; 492 493 int cross_connect; 494 495 int best_freq_24; 496 int best_freq_5; 497 int best_freq_overall; 498 int own_freq_preference; 499 500 /** 501 * wps_vendor_ext - WPS Vendor Extensions to add 502 */ 503 struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT]; 504 505 /* 506 * user_initiated_pd - Whether a PD request is user initiated or not. 507 */ 508 u8 user_initiated_pd; 509 510 /* 511 * Keep track of which peer a given PD request was sent to. 512 * Used to raise a timeout alert in case there is no response. 513 */ 514 u8 pending_pd_devaddr[ETH_ALEN]; 515 516 /* 517 * Retry counter for provision discovery requests when issued 518 * in IDLE state. 519 */ 520 int pd_retries; 521 522 /** 523 * pd_force_freq - Forced frequency for PD retries or 0 to auto-select 524 * 525 * This is is used during PD retries for join-a-group case to use the 526 * correct operating frequency determined from a BSS entry for the GO. 527 */ 528 int pd_force_freq; 529 530 u8 go_timeout; 531 u8 client_timeout; 532 533 /* Extra delay in milliseconds between search iterations */ 534 unsigned int search_delay; 535 int in_search_delay; 536 537 u8 pending_reg_class; 538 u8 pending_channel; 539 u8 pending_channel_forced; 540 541 /* ASP Support */ 542 struct p2ps_advertisement *p2ps_adv_list; 543 struct p2ps_provision *p2ps_prov; 544 u8 wild_card_hash[P2PS_HASH_LEN]; 545 u8 p2ps_seek; 546 u8 p2ps_seek_hash[P2P_MAX_QUERY_HASH * P2PS_HASH_LEN]; 547 u8 p2ps_seek_count; 548 549 #ifdef CONFIG_WIFI_DISPLAY 550 struct wpabuf *wfd_ie_beacon; 551 struct wpabuf *wfd_ie_probe_req; 552 struct wpabuf *wfd_ie_probe_resp; 553 struct wpabuf *wfd_ie_assoc_req; 554 struct wpabuf *wfd_ie_invitation; 555 struct wpabuf *wfd_ie_prov_disc_req; 556 struct wpabuf *wfd_ie_prov_disc_resp; 557 struct wpabuf *wfd_ie_go_neg; 558 struct wpabuf *wfd_dev_info; 559 struct wpabuf *wfd_assoc_bssid; 560 struct wpabuf *wfd_coupled_sink_info; 561 struct wpabuf *wfd_r2_dev_info; 562 #endif /* CONFIG_WIFI_DISPLAY */ 563 564 u16 authorized_oob_dev_pw_id; 565 566 struct wpabuf **vendor_elem; 567 568 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS]; 569 unsigned int num_pref_freq; 570 571 /* Override option for preferred operating channel in GO Negotiation */ 572 u8 override_pref_op_class; 573 u8 override_pref_channel; 574 }; 575 576 /** 577 * struct p2p_message - Parsed P2P message (or P2P IE) 578 */ 579 struct p2p_message { 580 struct wpabuf *p2p_attributes; 581 struct wpabuf *wps_attributes; 582 struct wpabuf *wfd_subelems; 583 584 u8 dialog_token; 585 586 const u8 *capability; 587 const u8 *go_intent; 588 const u8 *status; 589 const u8 *listen_channel; 590 const u8 *operating_channel; 591 const u8 *channel_list; 592 u8 channel_list_len; 593 const u8 *config_timeout; 594 const u8 *intended_addr; 595 const u8 *group_bssid; 596 const u8 *invitation_flags; 597 598 const u8 *group_info; 599 size_t group_info_len; 600 601 const u8 *group_id; 602 size_t group_id_len; 603 604 const u8 *device_id; 605 606 const u8 *manageability; 607 608 const u8 *noa; 609 size_t noa_len; 610 611 const u8 *ext_listen_timing; 612 613 const u8 *minor_reason_code; 614 615 const u8 *oob_go_neg_channel; 616 617 /* P2P Device Info */ 618 const u8 *p2p_device_info; 619 size_t p2p_device_info_len; 620 const u8 *p2p_device_addr; 621 const u8 *pri_dev_type; 622 u8 num_sec_dev_types; 623 char device_name[WPS_DEV_NAME_MAX_LEN + 1]; 624 u16 config_methods; 625 626 /* WPS IE */ 627 u16 dev_password_id; 628 int dev_password_id_present; 629 u16 wps_config_methods; 630 const u8 *wps_pri_dev_type; 631 const u8 *wps_sec_dev_type_list; 632 size_t wps_sec_dev_type_list_len; 633 const u8 *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT]; 634 size_t wps_vendor_ext_len[P2P_MAX_WPS_VENDOR_EXT]; 635 const u8 *manufacturer; 636 size_t manufacturer_len; 637 const u8 *model_name; 638 size_t model_name_len; 639 const u8 *model_number; 640 size_t model_number_len; 641 const u8 *serial_number; 642 size_t serial_number_len; 643 const u8 *oob_dev_password; 644 size_t oob_dev_password_len; 645 646 /* DS Parameter Set IE */ 647 const u8 *ds_params; 648 649 /* SSID IE */ 650 const u8 *ssid; 651 652 /* P2PS */ 653 u8 service_hash_count; 654 const u8 *service_hash; 655 656 const u8 *session_info; 657 size_t session_info_len; 658 659 const u8 *conn_cap; 660 661 const u8 *adv_id; 662 const u8 *adv_mac; 663 664 const u8 *adv_service_instance; 665 size_t adv_service_instance_len; 666 667 const u8 *session_id; 668 const u8 *session_mac; 669 670 const u8 *feature_cap; 671 size_t feature_cap_len; 672 673 const u8 *persistent_dev; 674 const u8 *persistent_ssid; 675 size_t persistent_ssid_len; 676 677 const u8 *pref_freq_list; 678 size_t pref_freq_list_len; 679 }; 680 681 682 #define P2P_MAX_GROUP_ENTRIES 50 683 684 struct p2p_group_info { 685 unsigned int num_clients; 686 struct p2p_client_info { 687 const u8 *p2p_device_addr; 688 const u8 *p2p_interface_addr; 689 u8 dev_capab; 690 u16 config_methods; 691 const u8 *pri_dev_type; 692 u8 num_sec_dev_types; 693 const u8 *sec_dev_types; 694 const char *dev_name; 695 size_t dev_name_len; 696 } client[P2P_MAX_GROUP_ENTRIES]; 697 }; 698 699 700 /* p2p_utils.c */ 701 int p2p_random(char *buf, size_t len); 702 int p2p_channel_to_freq(int op_class, int channel); 703 int p2p_freq_to_channel(unsigned int freq, u8 *op_class, u8 *channel); 704 void p2p_channels_intersect(const struct p2p_channels *a, 705 const struct p2p_channels *b, 706 struct p2p_channels *res); 707 void p2p_channels_union_inplace(struct p2p_channels *res, 708 const struct p2p_channels *b); 709 void p2p_channels_union(const struct p2p_channels *a, 710 const struct p2p_channels *b, 711 struct p2p_channels *res); 712 void p2p_channels_remove_freqs(struct p2p_channels *chan, 713 const struct wpa_freq_range_list *list); 714 int p2p_channels_includes(const struct p2p_channels *channels, u8 reg_class, 715 u8 channel); 716 void p2p_channels_dump(struct p2p_data *p2p, const char *title, 717 const struct p2p_channels *chan); 718 int p2p_channel_select(struct p2p_channels *chans, const int *classes, 719 u8 *op_class, u8 *op_channel); 720 int p2p_channel_random_social(struct p2p_channels *chans, u8 *op_class, 721 u8 *op_channel, 722 struct wpa_freq_range_list *avoid_list, 723 struct wpa_freq_range_list *disallow_list); 724 725 /* p2p_parse.c */ 726 void p2p_copy_filter_devname(char *dst, size_t dst_len, 727 const void *src, size_t src_len); 728 int p2p_parse_p2p_ie(const struct wpabuf *buf, struct p2p_message *msg); 729 int p2p_parse_ies(const u8 *data, size_t len, struct p2p_message *msg); 730 int p2p_parse(const u8 *data, size_t len, struct p2p_message *msg); 731 int p2p_parse_ies_separate(const u8 *wsc, size_t wsc_len, const u8 *p2p, 732 size_t p2p_len, struct p2p_message *msg); 733 void p2p_parse_free(struct p2p_message *msg); 734 int p2p_attr_text(struct wpabuf *data, char *buf, char *end); 735 int p2p_group_info_parse(const u8 *gi, size_t gi_len, 736 struct p2p_group_info *info); 737 738 /* p2p_build.c */ 739 740 struct p2p_noa_desc { 741 u8 count_type; 742 u32 duration; 743 u32 interval; 744 u32 start_time; 745 }; 746 747 /* p2p_group.c */ 748 const u8 * p2p_group_get_interface_addr(struct p2p_group *group); 749 u8 p2p_group_presence_req(struct p2p_group *group, 750 const u8 *client_interface_addr, 751 const u8 *noa, size_t noa_len); 752 int p2p_group_is_group_id_match(struct p2p_group *group, const u8 *group_id, 753 size_t group_id_len); 754 void p2p_group_update_ies(struct p2p_group *group); 755 void p2p_group_force_beacon_update_ies(struct p2p_group *group); 756 struct wpabuf * p2p_group_get_wfd_ie(struct p2p_group *g); 757 void p2p_buf_add_group_info(struct p2p_group *group, struct wpabuf *buf, 758 int max_clients); 759 void p2p_group_buf_add_id(struct p2p_group *group, struct wpabuf *buf); 760 int p2p_group_get_freq(struct p2p_group *group); 761 762 763 void p2p_buf_add_action_hdr(struct wpabuf *buf, u8 subtype, u8 dialog_token); 764 void p2p_buf_add_public_action_hdr(struct wpabuf *buf, u8 subtype, 765 u8 dialog_token); 766 u8 * p2p_buf_add_ie_hdr(struct wpabuf *buf); 767 void p2p_buf_add_status(struct wpabuf *buf, u8 status); 768 void p2p_buf_add_device_info(struct wpabuf *buf, struct p2p_data *p2p, 769 struct p2p_device *peer); 770 void p2p_buf_add_device_id(struct wpabuf *buf, const u8 *dev_addr); 771 void p2p_buf_update_ie_hdr(struct wpabuf *buf, u8 *len); 772 void p2p_buf_add_capability(struct wpabuf *buf, u8 dev_capab, u8 group_capab); 773 void p2p_buf_add_go_intent(struct wpabuf *buf, u8 go_intent); 774 void p2p_buf_add_listen_channel(struct wpabuf *buf, const char *country, 775 u8 reg_class, u8 channel); 776 void p2p_buf_add_operating_channel(struct wpabuf *buf, const char *country, 777 u8 reg_class, u8 channel); 778 void p2p_buf_add_channel_list(struct wpabuf *buf, const char *country, 779 struct p2p_channels *chan); 780 void p2p_buf_add_config_timeout(struct wpabuf *buf, u8 go_timeout, 781 u8 client_timeout); 782 void p2p_buf_add_intended_addr(struct wpabuf *buf, const u8 *interface_addr); 783 void p2p_buf_add_group_bssid(struct wpabuf *buf, const u8 *bssid); 784 void p2p_buf_add_group_id(struct wpabuf *buf, const u8 *dev_addr, 785 const u8 *ssid, size_t ssid_len); 786 void p2p_buf_add_invitation_flags(struct wpabuf *buf, u8 flags); 787 void p2p_buf_add_noa(struct wpabuf *buf, u8 noa_index, u8 opp_ps, u8 ctwindow, 788 struct p2p_noa_desc *desc1, struct p2p_noa_desc *desc2); 789 void p2p_buf_add_ext_listen_timing(struct wpabuf *buf, u16 period, 790 u16 interval); 791 void p2p_buf_add_p2p_interface(struct wpabuf *buf, struct p2p_data *p2p); 792 void p2p_buf_add_oob_go_neg_channel(struct wpabuf *buf, const char *country, 793 u8 oper_class, u8 channel, 794 enum p2p_role_indication role); 795 void p2p_buf_add_service_hash(struct wpabuf *buf, struct p2p_data *p2p); 796 void p2p_buf_add_session_info(struct wpabuf *buf, const char *info); 797 void p2p_buf_add_connection_capability(struct wpabuf *buf, u8 connection_cap); 798 void p2p_buf_add_advertisement_id(struct wpabuf *buf, u32 id, const u8 *mac); 799 void p2p_buf_add_service_instance(struct wpabuf *buf, struct p2p_data *p2p, 800 u8 count, const u8 *hash, 801 struct p2ps_advertisement *adv_list); 802 void p2p_buf_add_session_id(struct wpabuf *buf, u32 id, const u8 *mac); 803 void p2p_buf_add_feature_capability(struct wpabuf *buf, u16 len, 804 const u8 *mask); 805 void p2p_buf_add_persistent_group_info(struct wpabuf *buf, const u8 *dev_addr, 806 const u8 *ssid, size_t ssid_len); 807 int p2p_build_wps_ie(struct p2p_data *p2p, struct wpabuf *buf, int pw_id, 808 int all_attr); 809 void p2p_buf_add_pref_channel_list(struct wpabuf *buf, 810 const u32 *preferred_freq_list, u32 size); 811 812 /* p2p_sd.c */ 813 struct p2p_sd_query * p2p_pending_sd_req(struct p2p_data *p2p, 814 struct p2p_device *dev); 815 void p2p_free_sd_queries(struct p2p_data *p2p); 816 void p2p_rx_gas_initial_req(struct p2p_data *p2p, const u8 *sa, 817 const u8 *data, size_t len, int rx_freq); 818 void p2p_rx_gas_initial_resp(struct p2p_data *p2p, const u8 *sa, 819 const u8 *data, size_t len, int rx_freq); 820 void p2p_rx_gas_comeback_req(struct p2p_data *p2p, const u8 *sa, 821 const u8 *data, size_t len, int rx_freq); 822 void p2p_rx_gas_comeback_resp(struct p2p_data *p2p, const u8 *sa, 823 const u8 *data, size_t len, int rx_freq); 824 int p2p_start_sd(struct p2p_data *p2p, struct p2p_device *dev); 825 826 /* p2p_go_neg.c */ 827 int p2p_peer_channels_check(struct p2p_data *p2p, struct p2p_channels *own, 828 struct p2p_device *dev, 829 const u8 *channel_list, size_t channel_list_len); 830 void p2p_process_go_neg_req(struct p2p_data *p2p, const u8 *sa, 831 const u8 *data, size_t len, int rx_freq); 832 void p2p_process_go_neg_resp(struct p2p_data *p2p, const u8 *sa, 833 const u8 *data, size_t len, int rx_freq); 834 void p2p_process_go_neg_conf(struct p2p_data *p2p, const u8 *sa, 835 const u8 *data, size_t len); 836 int p2p_connect_send(struct p2p_data *p2p, struct p2p_device *dev); 837 u16 p2p_wps_method_pw_id(enum p2p_wps_method wps_method); 838 void p2p_reselect_channel(struct p2p_data *p2p, 839 struct p2p_channels *intersection); 840 void p2p_check_pref_chan(struct p2p_data *p2p, int go, 841 struct p2p_device *dev, struct p2p_message *msg); 842 843 /* p2p_pd.c */ 844 void p2p_process_prov_disc_req(struct p2p_data *p2p, const u8 *sa, 845 const u8 *data, size_t len, int rx_freq); 846 void p2p_process_prov_disc_resp(struct p2p_data *p2p, const u8 *sa, 847 const u8 *data, size_t len); 848 int p2p_send_prov_disc_req(struct p2p_data *p2p, struct p2p_device *dev, 849 int join, int force_freq); 850 void p2p_reset_pending_pd(struct p2p_data *p2p); 851 void p2ps_prov_free(struct p2p_data *p2p); 852 853 /* p2p_invitation.c */ 854 void p2p_process_invitation_req(struct p2p_data *p2p, const u8 *sa, 855 const u8 *data, size_t len, int rx_freq); 856 void p2p_process_invitation_resp(struct p2p_data *p2p, const u8 *sa, 857 const u8 *data, size_t len); 858 int p2p_invite_send(struct p2p_data *p2p, struct p2p_device *dev, 859 const u8 *go_dev_addr, int dev_pw_id); 860 void p2p_invitation_req_cb(struct p2p_data *p2p, int success); 861 void p2p_invitation_resp_cb(struct p2p_data *p2p, int success); 862 863 /* p2p_dev_disc.c */ 864 void p2p_process_dev_disc_req(struct p2p_data *p2p, const u8 *sa, 865 const u8 *data, size_t len, int rx_freq); 866 void p2p_dev_disc_req_cb(struct p2p_data *p2p, int success); 867 int p2p_send_dev_disc_req(struct p2p_data *p2p, struct p2p_device *dev); 868 void p2p_dev_disc_resp_cb(struct p2p_data *p2p, int success); 869 void p2p_process_dev_disc_resp(struct p2p_data *p2p, const u8 *sa, 870 const u8 *data, size_t len); 871 void p2p_go_disc_req_cb(struct p2p_data *p2p, int success); 872 void p2p_process_go_disc_req(struct p2p_data *p2p, const u8 *da, const u8 *sa, 873 const u8 *data, size_t len, int rx_freq); 874 875 /* p2p.c */ 876 void p2p_set_state(struct p2p_data *p2p, int new_state); 877 void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, 878 unsigned int usec); 879 void p2p_clear_timeout(struct p2p_data *p2p); 880 void p2p_continue_find(struct p2p_data *p2p); 881 struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p, 882 const u8 *addr, 883 struct p2p_message *msg); 884 void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr, 885 struct p2p_device *dev, struct p2p_message *msg); 886 int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq, 887 struct os_reltime *rx_time, int level, const u8 *ies, 888 size_t ies_len, int scan_res); 889 struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr); 890 struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p, 891 const u8 *addr); 892 void p2p_go_neg_failed(struct p2p_data *p2p, int status); 893 void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer); 894 int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps); 895 int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[], 896 size_t num_req_dev_type); 897 struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p, 898 const u8 *query_hash, 899 u8 query_count); 900 void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len); 901 int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst, 902 const u8 *src, const u8 *bssid, const u8 *buf, 903 size_t len, unsigned int wait_time); 904 void p2p_stop_listen_for_freq(struct p2p_data *p2p, int freq); 905 int p2p_prepare_channel(struct p2p_data *p2p, struct p2p_device *dev, 906 unsigned int force_freq, unsigned int pref_freq, 907 int go); 908 void p2p_go_neg_wait_timeout(void *eloop_ctx, void *timeout_ctx); 909 int p2p_go_select_channel(struct p2p_data *p2p, struct p2p_device *dev, 910 u8 *status); 911 void p2p_dbg(struct p2p_data *p2p, const char *fmt, ...) 912 PRINTF_FORMAT(2, 3); 913 void p2p_info(struct p2p_data *p2p, const char *fmt, ...) 914 PRINTF_FORMAT(2, 3); 915 void p2p_err(struct p2p_data *p2p, const char *fmt, ...) 916 PRINTF_FORMAT(2, 3); 917 918 #endif /* P2P_I_H */ 919
