src/p2p/p2p_i.h

   1 /*
   2  * P2P - Internal definitions for P2P module
   3  * Copyright (c) 2009-2010, Atheros Communications
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  */
  14
  15 #ifndef P2P_I_H
  16 #define P2P_I_H
  17
  18 #include "utils/list.h"
  19 #include "p2p.h"
  20
  21 enum p2p_go_state {
  22         UNKNOWN_GO,
  23         LOCAL_GO,
  24         REMOTE_GO
  25 };
  26
  27 /**
  28  * struct p2p_device - P2P Device data (internal to P2P module)
  29  */
  30 struct p2p_device {
  31         struct dl_list list;
  32         struct os_time last_seen;
  33         int listen_freq;
  34         enum p2p_wps_method wps_method;
  35
  36         struct p2p_peer_info info;
  37
  38         /*
  39          * If the peer was discovered based on an interface address (e.g., GO
  40          * from Beacon/Probe Response), the interface address is stored here.
  41          * p2p_device_addr must still be set in such a case to the unique
  42          * identifier for the P2P Device.
  43          */
  44         u8 interface_addr[ETH_ALEN];
  45
  46         /*
  47          * P2P Device Address of the GO in whose group this P2P Device is a
  48          * client.
  49          */
  50         u8 member_in_go_dev[ETH_ALEN];
  51
  52         /*
  53          * P2P Interface Address of the GO in whose group this P2P Device is a
  54          * client.
  55          */
  56         u8 member_in_go_iface[ETH_ALEN];
  57
  58         int go_neg_req_sent;
  59         enum p2p_go_state go_state;
  60         u8 dialog_token;
  61         u8 intended_addr[ETH_ALEN];
  62
  63         char country[3];
  64         struct p2p_channels channels;
  65         int oper_freq;
  66         u8 oper_ssid[32];
  67         size_t oper_ssid_len;
  68
  69         /**
  70          * req_config_methods - Pending provision discovery methods
  71          */
  72         u16 req_config_methods;
  73
  74         /**
  75          * wps_prov_info - Stored provisioning WPS config method
  76          *
  77          * This is used to store pending WPS config method between Provisioning
  78          * Discovery and connection to a running group.
  79          */
  80         u16 wps_prov_info;
  81
  82 #define P2P_DEV_PROBE_REQ_ONLY BIT(0)
  83 #define P2P_DEV_REPORTED BIT(1)
  84 #define P2P_DEV_NOT_YET_READY BIT(2)
  85 #define P2P_DEV_SD_INFO BIT(3)
  86 #define P2P_DEV_SD_SCHEDULE BIT(4)
  87 #define P2P_DEV_PD_PEER_DISPLAY BIT(5)
  88 #define P2P_DEV_PD_PEER_KEYPAD BIT(6)
  89 #define P2P_DEV_USER_REJECTED BIT(7)
  90 #define P2P_DEV_PEER_WAITING_RESPONSE BIT(8)
  91 #define P2P_DEV_PREFER_PERSISTENT_GROUP BIT(9)
  92 #define P2P_DEV_WAIT_GO_NEG_RESPONSE BIT(10)
  93 #define P2P_DEV_WAIT_GO_NEG_CONFIRM BIT(11)
  94 #define P2P_DEV_GROUP_CLIENT_ONLY BIT(12)
  95 #define P2P_DEV_FORCE_FREQ BIT(13)
  96 #define P2P_DEV_PD_FOR_JOIN BIT(14)
  97 #define P2P_DEV_REPORTED_ONCE BIT(15)
  98 #define P2P_DEV_PREFER_PERSISTENT_RECONN BIT(16)
  99         unsigned int flags;
 100
 101         int status; /* enum p2p_status_code */
 102         unsigned int wait_count;
 103         unsigned int connect_reqs;
 104         unsigned int invitation_reqs;
 105
 106         u16 ext_listen_period;
 107         u16 ext_listen_interval;
 108
 109         u8 go_timeout;
 110         u8 client_timeout;
 111 };
 112
 113 struct p2p_sd_query {
 114         struct p2p_sd_query *next;
 115         u8 peer[ETH_ALEN];
 116         int for_all_peers;
 117         struct wpabuf *tlvs;
 118 };
 119
 120 struct p2p_pending_action_tx {
 121         unsigned int freq;
 122         u8 dst[ETH_ALEN];
 123         u8 src[ETH_ALEN];
 124         u8 bssid[ETH_ALEN];
 125         size_t len;
 126         unsigned int wait_time;
 127         /* Followed by len octets of the frame */
 128 };
 129
 130 /**
 131  * struct p2p_data - P2P module data (internal to P2P module)
 132  */
 133 struct p2p_data {
 134         /**
 135          * cfg - P2P module configuration
 136          *
 137          * This is included in the same memory allocation with the
 138          * struct p2p_data and as such, must not be freed separately.
 139          */
 140         struct p2p_config *cfg;
 141
 142         /**
 143          * state - The current P2P state
 144          */
 145         enum p2p_state {
 146                 /**
 147                  * P2P_IDLE - Idle
 148                  */
 149                 P2P_IDLE,
 150
 151                 /**
 152                  * P2P_SEARCH - Search (Device Discovery)
 153                  */
 154                 P2P_SEARCH,
 155
 156                 /**
 157                  * P2P_CONNECT - Trying to start GO Negotiation
 158                  */
 159                 P2P_CONNECT,
 160
 161                 /**
 162                  * P2P_CONNECT_LISTEN - Listen during GO Negotiation start
 163                  */
 164                 P2P_CONNECT_LISTEN,
 165
 166                 /**
 167                  * P2P_GO_NEG - In GO Negotiation
 168                  */
 169                 P2P_GO_NEG,
 170
 171                 /**
 172                  * P2P_LISTEN_ONLY - Listen only
 173                  */
 174                 P2P_LISTEN_ONLY,
 175
 176                 /**
 177                  * P2P_WAIT_PEER_CONNECT - Waiting peer in List for GO Neg
 178                  */
 179                 P2P_WAIT_PEER_CONNECT,
 180
 181                 /**
 182                  * P2P_WAIT_PEER_IDLE - Waiting peer idle for GO Neg
 183                  */
 184                 P2P_WAIT_PEER_IDLE,
 185
 186                 /**
 187                  * P2P_SD_DURING_FIND - Service Discovery during find
 188                  */
 189                 P2P_SD_DURING_FIND,
 190
 191                 /**
 192                  * P2P_PROVISIONING - Provisioning (during group formation)
 193                  */
 194                 P2P_PROVISIONING,
 195
 196                 /**
 197                  * P2P_PD_DURING_FIND - Provision Discovery during find
 198                  */
 199                 P2P_PD_DURING_FIND,
 200
 201                 /**
 202                  * P2P_INVITE - Trying to start Invite
 203                  */
 204                 P2P_INVITE,
 205
 206                 /**
 207                  * P2P_INVITE_LISTEN - Listen during Invite
 208                  */
 209                 P2P_INVITE_LISTEN,
 210
 211                 /**
 212                  * P2P_SEARCH_WHEN_READY - Waiting to start Search
 213                  */
 214                 P2P_SEARCH_WHEN_READY,
 215         } state;
 216
 217         /**
 218          * min_disc_int - minDiscoverableInterval
 219          */
 220         int min_disc_int;
 221
 222         /**
 223          * max_disc_int - maxDiscoverableInterval
 224          */
 225         int max_disc_int;
 226
 227         /**
 228          * devices - List of known P2P Device peers
 229          */
 230         struct dl_list devices;
 231
 232         /**
 233          * go_neg_peer - Pointer to GO Negotiation peer
 234          */
 235         struct p2p_device *go_neg_peer;
 236
 237         /**
 238          * invite_peer - Pointer to Invite peer
 239          */
 240         struct p2p_device *invite_peer;
 241
 242         const u8 *invite_go_dev_addr;
 243         u8 invite_go_dev_addr_buf[ETH_ALEN];
 244
 245         /**
 246          * sd_peer - Pointer to Service Discovery peer
 247          */
 248         struct p2p_device *sd_peer;
 249
 250         /**
 251          * sd_query - Pointer to Service Discovery query
 252          */
 253         struct p2p_sd_query *sd_query;
 254
 255         /* GO Negotiation data */
 256
 257         /**
 258          * intended_addr - Local Intended P2P Interface Address
 259          *
 260          * This address is used during group owner negotiation as the Intended
 261          * P2P Interface Address and the group interface will be created with
 262          * address as the local address in case of successfully completed
 263          * negotiation.
 264          */
 265         u8 intended_addr[ETH_ALEN];
 266
 267         /**
 268          * go_intent - Local GO Intent to be used during GO Negotiation
 269          */
 270         u8 go_intent;
 271
 272         /**
 273          * next_tie_breaker - Next tie-breaker value to use in GO Negotiation
 274          */
 275         u8 next_tie_breaker;
 276
 277         /**
 278          * ssid - Selected SSID for GO Negotiation (if local end will be GO)
 279          */
 280         u8 ssid[32];
 281
 282         /**
 283          * ssid_len - ssid length in octets
 284          */
 285         size_t ssid_len;
 286
 287         /**
 288          * ssid_set - Whether SSID is already set for GO Negotiation
 289          */
 290         int ssid_set;
 291
 292         /**
 293          * Regulatory class for own operational channel
 294          */
 295         u8 op_reg_class;
 296
 297         /**
 298          * op_channel - Own operational channel
 299          */
 300         u8 op_channel;
 301
 302         /**
 303          * channels - Own supported regulatory classes and channels
 304          *
 305          * List of supposerted channels per regulatory class. The regulatory
 306          * classes are defined in IEEE Std 802.11-2007 Annex J and the
 307          * numbering of the clases depends on the configured country code.
 308          */
 309         struct p2p_channels channels;
 310
 311         enum p2p_pending_action_state {
 312                 P2P_NO_PENDING_ACTION,
 313                 P2P_PENDING_GO_NEG_REQUEST,
 314                 P2P_PENDING_GO_NEG_RESPONSE,
 315                 P2P_PENDING_GO_NEG_RESPONSE_FAILURE,
 316                 P2P_PENDING_GO_NEG_CONFIRM,
 317                 P2P_PENDING_SD,
 318                 P2P_PENDING_PD,
 319                 P2P_PENDING_INVITATION_REQUEST,
 320                 P2P_PENDING_INVITATION_RESPONSE,
 321                 P2P_PENDING_DEV_DISC_REQUEST,
 322                 P2P_PENDING_DEV_DISC_RESPONSE,
 323                 P2P_PENDING_GO_DISC_REQ
 324         } pending_action_state;
 325
 326         unsigned int pending_listen_freq;
 327         unsigned int pending_listen_sec;
 328         unsigned int pending_listen_usec;
 329
 330         u8 dev_capab;
 331
 332         int in_listen;
 333         int drv_in_listen;
 334
 335         /**
 336          * sd_queries - Pending service discovery queries
 337          */
 338         struct p2p_sd_query *sd_queries;
 339
 340         /**
 341          * srv_update_indic - Service Update Indicator for local services
 342          */
 343         u16 srv_update_indic;
 344
 345         struct wpabuf *sd_resp; /* Fragmented SD response */
 346         u8 sd_resp_addr[ETH_ALEN];
 347         u8 sd_resp_dialog_token;
 348         size_t sd_resp_pos; /* Offset in sd_resp */
 349         u8 sd_frag_id;
 350
 351         struct wpabuf *sd_rx_resp; /* Reassembled SD response */
 352         u16 sd_rx_update_indic;
 353
 354         /* P2P Invitation data */
 355         enum p2p_invite_role inv_role;
 356         u8 inv_bssid[ETH_ALEN];
 357         int inv_bssid_set;
 358         u8 inv_ssid[32];
 359         size_t inv_ssid_len;
 360         u8 inv_sa[ETH_ALEN];
 361         u8 inv_group_bssid[ETH_ALEN];
 362         u8 *inv_group_bssid_ptr;
 363         u8 inv_go_dev_addr[ETH_ALEN];
 364         u8 inv_status;
 365         int inv_op_freq;
 366         int inv_persistent;
 367
 368         enum p2p_discovery_type find_type;
 369         unsigned int last_p2p_find_timeout;
 370         u8 last_prog_scan_class;
 371         u8 last_prog_scan_chan;
 372         int p2p_scan_running;
 373         enum p2p_after_scan {
 374                 P2P_AFTER_SCAN_NOTHING,
 375                 P2P_AFTER_SCAN_LISTEN,
 376                 P2P_AFTER_SCAN_CONNECT
 377         } start_after_scan;
 378         u8 after_scan_peer[ETH_ALEN];
 379         struct p2p_pending_action_tx *after_scan_tx;
 380
 381         /* Requested device types for find/search */
 382         unsigned int num_req_dev_types;
 383         u8 *req_dev_types;
 384
 385         struct p2p_group **groups;
 386         size_t num_groups;
 387
 388         struct p2p_device *pending_client_disc_go;
 389         u8 pending_client_disc_addr[ETH_ALEN];
 390         u8 pending_dev_disc_dialog_token;
 391         u8 pending_dev_disc_addr[ETH_ALEN];
 392         int pending_dev_disc_freq;
 393         unsigned int pending_client_disc_freq;
 394
 395         int ext_listen_only;
 396         unsigned int ext_listen_period;
 397         unsigned int ext_listen_interval;
 398         unsigned int ext_listen_interval_sec;
 399         unsigned int ext_listen_interval_usec;
 400
 401         u8 peer_filter[ETH_ALEN];
 402
 403         int cross_connect;
 404
 405         int best_freq_24;
 406         int best_freq_5;
 407         int best_freq_overall;
 408
 409         /**
 410          * wps_vendor_ext - WPS Vendor Extensions to add
 411          */
 412         struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT];
 413
 414         /*
 415          * user_initiated_pd - Whether a PD request is user initiated or not.
 416          */
 417         u8 user_initiated_pd;
 418
 419         /*
 420          * Keep track of which peer a given PD request was sent to.
 421          * Used to raise a timeout alert in case there is no response.
 422          */
 423         u8 pending_pd_devaddr[ETH_ALEN];
 424
 425         /*
 426          * Retry counter for provision discovery requests when issued
 427          * in IDLE state.
 428          */
 429         int pd_retries;
 430 };
 431
 432 /**
 433  * struct p2p_message - Parsed P2P message (or P2P IE)
 434  */
 435 struct p2p_message {
 436         struct wpabuf *p2p_attributes;
 437         struct wpabuf *wps_attributes;
 438
 439         u8 dialog_token;
 440
 441         const u8 *capability;
 442         const u8 *go_intent;
 443         const u8 *status;
 444         const u8 *listen_channel;
 445         const u8 *operating_channel;
 446         const u8 *channel_list;
 447         u8 channel_list_len;
 448         const u8 *config_timeout;
 449         const u8 *intended_addr;
 450         const u8 *group_bssid;
 451         const u8 *invitation_flags;
 452
 453         const u8 *group_info;
 454         size_t group_info_len;
 455
 456         const u8 *group_id;
 457         size_t group_id_len;
 458
 459         const u8 *device_id;
 460
 461         const u8 *manageability;
 462
 463         const u8 *noa;
 464         size_t noa_len;
 465
 466         const u8 *ext_listen_timing;
 467
 468         const u8 *minor_reason_code;
 469
 470         /* P2P Device Info */
 471         const u8 *p2p_device_info;
 472         size_t p2p_device_info_len;
 473         const u8 *p2p_device_addr;
 474         const u8 *pri_dev_type;
 475         u8 num_sec_dev_types;
 476         char device_name[33];
 477         u16 config_methods;
 478
 479         /* WPS IE */
 480         u16 dev_password_id;
 481         u16 wps_config_methods;
 482         const u8 *wps_pri_dev_type;
 483         const u8 *wps_sec_dev_type_list;
 484         size_t wps_sec_dev_type_list_len;
 485         const u8 *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT];
 486         size_t wps_vendor_ext_len[P2P_MAX_WPS_VENDOR_EXT];
 487         const u8 *manufacturer;
 488         size_t manufacturer_len;
 489         const u8 *model_name;
 490         size_t model_name_len;
 491         const u8 *model_number;
 492         size_t model_number_len;
 493         const u8 *serial_number;
 494         size_t serial_number_len;
 495
 496         /* DS Parameter Set IE */
 497         const u8 *ds_params;
 498
 499         /* SSID IE */
 500         const u8 *ssid;
 501 };
 502
 503
 504 #define P2P_MAX_GROUP_ENTRIES 50
 505
 506 struct p2p_group_info {
 507         unsigned int num_clients;
 508         struct p2p_client_info {
 509                 const u8 *p2p_device_addr;
 510                 const u8 *p2p_interface_addr;
 511                 u8 dev_capab;
 512                 u16 config_methods;
 513                 const u8 *pri_dev_type;
 514                 u8 num_sec_dev_types;
 515                 const u8 *sec_dev_types;
 516                 const char *dev_name;
 517                 size_t dev_name_len;
 518         } client[P2P_MAX_GROUP_ENTRIES];
 519 };
 520
 521
 522 /* p2p_utils.c */
 523 int p2p_random(char *buf, size_t len);
 524 int p2p_channel_to_freq(const char *country, int reg_class, int channel);
 525 int p2p_freq_to_channel(const char *country, unsigned int freq, u8 *reg_class,
 526                         u8 *channel);
 527 void p2p_channels_intersect(const struct p2p_channels *a,
 528                             const struct p2p_channels *b,
 529                             struct p2p_channels *res);
 530 int p2p_channels_includes(const struct p2p_channels *channels, u8 reg_class,
 531                           u8 channel);
 532
 533 /* p2p_parse.c */
 534 int p2p_parse_p2p_ie(const struct wpabuf *buf, struct p2p_message *msg);
 535 int p2p_parse_ies(const u8 *data, size_t len, struct p2p_message *msg);
 536 int p2p_parse(const u8 *data, size_t len, struct p2p_message *msg);
 537 void p2p_parse_free(struct p2p_message *msg);
 538 int p2p_attr_text(struct wpabuf *data, char *buf, char *end);
 539 int p2p_group_info_parse(const u8 *gi, size_t gi_len,
 540                          struct p2p_group_info *info);
 541
 542 /* p2p_build.c */
 543
 544 struct p2p_noa_desc {
 545         u8 count_type;
 546         u32 duration;
 547         u32 interval;
 548         u32 start_time;
 549 };
 550
 551 /* p2p_group.c */
 552 const u8 * p2p_group_get_interface_addr(struct p2p_group *group);
 553 u8 p2p_group_presence_req(struct p2p_group *group,
 554                           const u8 *client_interface_addr,
 555                           const u8 *noa, size_t noa_len);
 556
 557
 558 void p2p_buf_add_action_hdr(struct wpabuf *buf, u8 subtype, u8 dialog_token);
 559 void p2p_buf_add_public_action_hdr(struct wpabuf *buf, u8 subtype,
 560                                    u8 dialog_token);
 561 u8 * p2p_buf_add_ie_hdr(struct wpabuf *buf);
 562 void p2p_buf_add_status(struct wpabuf *buf, u8 status);
 563 void p2p_buf_add_device_info(struct wpabuf *buf, struct p2p_data *p2p,
 564                              struct p2p_device *peer);
 565 void p2p_buf_add_device_id(struct wpabuf *buf, const u8 *dev_addr);
 566 void p2p_buf_update_ie_hdr(struct wpabuf *buf, u8 *len);
 567 void p2p_buf_add_capability(struct wpabuf *buf, u8 dev_capab, u8 group_capab);
 568 void p2p_buf_add_go_intent(struct wpabuf *buf, u8 go_intent);
 569 void p2p_buf_add_listen_channel(struct wpabuf *buf, const char *country,
 570                                 u8 reg_class, u8 channel);
 571 void p2p_buf_add_operating_channel(struct wpabuf *buf, const char *country,
 572                                    u8 reg_class, u8 channel);
 573 void p2p_buf_add_channel_list(struct wpabuf *buf, const char *country,
 574                               struct p2p_channels *chan);
 575 void p2p_buf_add_config_timeout(struct wpabuf *buf, u8 go_timeout,
 576                                 u8 client_timeout);
 577 void p2p_buf_add_intended_addr(struct wpabuf *buf, const u8 *interface_addr);
 578 void p2p_buf_add_group_bssid(struct wpabuf *buf, const u8 *bssid);
 579 void p2p_buf_add_group_id(struct wpabuf *buf, const u8 *dev_addr,
 580                           const u8 *ssid, size_t ssid_len);
 581 void p2p_buf_add_invitation_flags(struct wpabuf *buf, u8 flags);
 582 void p2p_buf_add_noa(struct wpabuf *buf, u8 noa_index, u8 opp_ps, u8 ctwindow,
 583                      struct p2p_noa_desc *desc1, struct p2p_noa_desc *desc2);
 584 void p2p_buf_add_ext_listen_timing(struct wpabuf *buf, u16 period,
 585                                    u16 interval);
 586 void p2p_buf_add_p2p_interface(struct wpabuf *buf, struct p2p_data *p2p);
 587 void p2p_build_wps_ie(struct p2p_data *p2p, struct wpabuf *buf, u16 pw_id,
 588                       int all_attr);
 589
 590 /* p2p_sd.c */
 591 struct p2p_sd_query * p2p_pending_sd_req(struct p2p_data *p2p,
 592                                          struct p2p_device *dev);
 593 void p2p_free_sd_queries(struct p2p_data *p2p);
 594 void p2p_rx_gas_initial_req(struct p2p_data *p2p, const u8 *sa,
 595                             const u8 *data, size_t len, int rx_freq);
 596 void p2p_rx_gas_initial_resp(struct p2p_data *p2p, const u8 *sa,
 597                              const u8 *data, size_t len, int rx_freq);
 598 void p2p_rx_gas_comeback_req(struct p2p_data *p2p, const u8 *sa,
 599                              const u8 *data, size_t len, int rx_freq);
 600 void p2p_rx_gas_comeback_resp(struct p2p_data *p2p, const u8 *sa,
 601                               const u8 *data, size_t len, int rx_freq);
 602 int p2p_start_sd(struct p2p_data *p2p, struct p2p_device *dev);
 603
 604 /* p2p_go_neg.c */
 605 int p2p_peer_channels_check(struct p2p_data *p2p, struct p2p_channels *own,
 606                             struct p2p_device *dev,
 607                             const u8 *channel_list, size_t channel_list_len);
 608 void p2p_process_go_neg_req(struct p2p_data *p2p, const u8 *sa,
 609                             const u8 *data, size_t len, int rx_freq);
 610 void p2p_process_go_neg_resp(struct p2p_data *p2p, const u8 *sa,
 611                              const u8 *data, size_t len, int rx_freq);
 612 void p2p_process_go_neg_conf(struct p2p_data *p2p, const u8 *sa,
 613                              const u8 *data, size_t len);
 614 int p2p_connect_send(struct p2p_data *p2p, struct p2p_device *dev);
 615
 616 /* p2p_pd.c */
 617 void p2p_process_prov_disc_req(struct p2p_data *p2p, const u8 *sa,
 618                                const u8 *data, size_t len, int rx_freq);
 619 void p2p_process_prov_disc_resp(struct p2p_data *p2p, const u8 *sa,
 620                                 const u8 *data, size_t len);
 621 int p2p_send_prov_disc_req(struct p2p_data *p2p, struct p2p_device *dev,
 622                            int join);
 623 void p2p_reset_pending_pd(struct p2p_data *p2p);
 624
 625 /* p2p_invitation.c */
 626 void p2p_process_invitation_req(struct p2p_data *p2p, const u8 *sa,
 627                                 const u8 *data, size_t len, int rx_freq);
 628 void p2p_process_invitation_resp(struct p2p_data *p2p, const u8 *sa,
 629                                  const u8 *data, size_t len);
 630 int p2p_invite_send(struct p2p_data *p2p, struct p2p_device *dev,
 631                     const u8 *go_dev_addr);
 632 void p2p_invitation_req_cb(struct p2p_data *p2p, int success);
 633 void p2p_invitation_resp_cb(struct p2p_data *p2p, int success);
 634
 635 /* p2p_dev_disc.c */
 636 void p2p_process_dev_disc_req(struct p2p_data *p2p, const u8 *sa,
 637                               const u8 *data, size_t len, int rx_freq);
 638 void p2p_dev_disc_req_cb(struct p2p_data *p2p, int success);
 639 int p2p_send_dev_disc_req(struct p2p_data *p2p, struct p2p_device *dev);
 640 void p2p_dev_disc_resp_cb(struct p2p_data *p2p, int success);
 641 void p2p_process_dev_disc_resp(struct p2p_data *p2p, const u8 *sa,
 642                                const u8 *data, size_t len);
 643 void p2p_go_disc_req_cb(struct p2p_data *p2p, int success);
 644 void p2p_process_go_disc_req(struct p2p_data *p2p, const u8 *da, const u8 *sa,
 645                              const u8 *data, size_t len, int rx_freq);
 646
 647 /* p2p.c */
 648 void p2p_set_state(struct p2p_data *p2p, int new_state);
 649 void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec,
 650                      unsigned int usec);
 651 void p2p_clear_timeout(struct p2p_data *p2p);
 652 void p2p_continue_find(struct p2p_data *p2p);
 653 struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
 654                                                 const u8 *addr,
 655                                                 struct p2p_message *msg);
 656 void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
 657                       struct p2p_device *dev, struct p2p_message *msg);
 658 struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr);
 659 struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p,
 660                                              const u8 *addr);
 661 void p2p_go_neg_failed(struct p2p_data *p2p, struct p2p_device *peer,
 662                        int status);
 663 void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer);
 664 int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps);
 665 int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
 666                         size_t num_req_dev_type);
 667 struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p);
 668 void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len);
 669 int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
 670                     const u8 *src, const u8 *bssid, const u8 *buf,
 671                     size_t len, unsigned int wait_time);
 672
 673 #endif /* P2P_I_H */