src/p2p/p2p_i.h

   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 enum p2p_go_state {
  16         UNKNOWN_GO,
  17         LOCAL_GO,
  18         REMOTE_GO
  19 };
  20
  21 /**
  22  * struct p2p_device - P2P Device data (internal to P2P module)
  23  */
  24 struct p2p_device {
  25         struct dl_list list;
  26         struct os_time last_seen;
  27         int listen_freq;
  28         enum p2p_wps_method wps_method;
  29
  30         struct p2p_peer_info info;
  31
  32         /*
  33          * If the peer was discovered based on an interface address (e.g., GO
  34          * from Beacon/Probe Response), the interface address is stored here.
  35          * p2p_device_addr must still be set in such a case to the unique
  36          * identifier for the P2P Device.
  37          */
  38         u8 interface_addr[ETH_ALEN];
  39
  40         /*
  41          * P2P Device Address of the GO in whose group this P2P Device is a
  42          * client.
  43          */
  44         u8 member_in_go_dev[ETH_ALEN];
  45
  46         /*
  47          * P2P Interface Address of the GO in whose group this P2P Device is a
  48          * client.
  49          */
  50         u8 member_in_go_iface[ETH_ALEN];
  51
  52         int go_neg_req_sent;
  53         enum p2p_go_state go_state;
  54         u8 dialog_token;
  55         u8 intended_addr[ETH_ALEN];
  56
  57         char country[3];
  58         struct p2p_channels channels;
  59         int oper_freq;
  60         u8 oper_ssid[32];
  61         size_t oper_ssid_len;
  62
  63         /**
  64          * req_config_methods - Pending provision discovery methods
  65          */
  66         u16 req_config_methods;
  67
  68         /**
  69          * wps_prov_info - Stored provisioning WPS config method
  70          *
  71          * This is used to store pending WPS config method between Provisioning
  72          * Discovery and connection to a running group.
  73          */
  74         u16 wps_prov_info;
  75
  76 #define P2P_DEV_PROBE_REQ_ONLY BIT(0)
  77 #define P2P_DEV_REPORTED BIT(1)
  78 #define P2P_DEV_NOT_YET_READY BIT(2)
  79 #define P2P_DEV_SD_INFO BIT(3)
  80 #define P2P_DEV_SD_SCHEDULE BIT(4)
  81 #define P2P_DEV_PD_PEER_DISPLAY BIT(5)
  82 #define P2P_DEV_PD_PEER_KEYPAD BIT(6)
  83 #define P2P_DEV_USER_REJECTED BIT(7)
  84 #define P2P_DEV_PEER_WAITING_RESPONSE BIT(8)
  85 #define P2P_DEV_PREFER_PERSISTENT_GROUP BIT(9)
  86 #define P2P_DEV_WAIT_GO_NEG_RESPONSE BIT(10)
  87 #define P2P_DEV_WAIT_GO_NEG_CONFIRM BIT(11)
  88 #define P2P_DEV_GROUP_CLIENT_ONLY BIT(12)
  89 #define P2P_DEV_FORCE_FREQ BIT(13)
  90 #define P2P_DEV_PD_FOR_JOIN BIT(14)
  91 #define P2P_DEV_REPORTED_ONCE BIT(15)
  92 #define P2P_DEV_PREFER_PERSISTENT_RECONN BIT(16)
  93         unsigned int flags;
  94
  95         int status; /* enum p2p_status_code */
  96         unsigned int wait_count;
  97         unsigned int connect_reqs;
  98         unsigned int invitation_reqs;
  99
 100         u16 ext_listen_period;
 101         u16 ext_listen_interval;
 102
 103         u8 go_timeout;
 104         u8 client_timeout;
 105 };
 106
 107 struct p2p_sd_query {
 108         struct p2p_sd_query *next;
 109         u8 peer[ETH_ALEN];
 110         int for_all_peers;
 111         struct wpabuf *tlvs;
 112 };
 113
 114 struct p2p_pending_action_tx {
 115         unsigned int freq;
 116         u8 dst[ETH_ALEN];
 117         u8 src[ETH_ALEN];
 118         u8 bssid[ETH_ALEN];
 119         size_t len;
 120         unsigned int wait_time;
 121         /* Followed by len octets of the frame */
 122 };
 123
 124 /**
 125  * struct p2p_data - P2P module data (internal to P2P module)
 126  */
 127 struct p2p_data {
 128         /**
 129          * cfg - P2P module configuration
 130          *
 131          * This is included in the same memory allocation with the
 132          * struct p2p_data and as such, must not be freed separately.
 133          */
 134         struct p2p_config *cfg;
 135
 136         /**
 137          * state - The current P2P state
 138          */
 139         enum p2p_state {
 140                 /**
 141                  * P2P_IDLE - Idle
 142                  */
 143                 P2P_IDLE,
 144
 145                 /**
 146                  * P2P_SEARCH - Search (Device Discovery)
 147                  */
 148                 P2P_SEARCH,
 149
 150                 /**
 151                  * P2P_CONNECT - Trying to start GO Negotiation
 152                  */
 153                 P2P_CONNECT,
 154
 155                 /**
 156                  * P2P_CONNECT_LISTEN - Listen during GO Negotiation start
 157                  */
 158                 P2P_CONNECT_LISTEN,
 159
 160                 /**
 161                  * P2P_GO_NEG - In GO Negotiation
 162                  */
 163                 P2P_GO_NEG,
 164
 165                 /**
 166                  * P2P_LISTEN_ONLY - Listen only
 167                  */
 168                 P2P_LISTEN_ONLY,
 169
 170                 /**
 171                  * P2P_WAIT_PEER_CONNECT - Waiting peer in List for GO Neg
 172                  */
 173                 P2P_WAIT_PEER_CONNECT,
 174
 175                 /**
 176                  * P2P_WAIT_PEER_IDLE - Waiting peer idle for GO Neg
 177                  */
 178                 P2P_WAIT_PEER_IDLE,
 179
 180                 /**
 181                  * P2P_SD_DURING_FIND - Service Discovery during find
 182                  */
 183                 P2P_SD_DURING_FIND,
 184
 185                 /**
 186                  * P2P_PROVISIONING - Provisioning (during group formation)
 187                  */
 188                 P2P_PROVISIONING,
 189
 190                 /**
 191                  * P2P_PD_DURING_FIND - Provision Discovery during find
 192                  */
 193                 P2P_PD_DURING_FIND,
 194
 195                 /**
 196                  * P2P_INVITE - Trying to start Invite
 197                  */
 198                 P2P_INVITE,
 199
 200                 /**
 201                  * P2P_INVITE_LISTEN - Listen during Invite
 202                  */
 203                 P2P_INVITE_LISTEN,
 204
 205                 /**
 206                  * P2P_SEARCH_WHEN_READY - Waiting to start Search
 207                  */
 208                 P2P_SEARCH_WHEN_READY,
 209         } state;
 210
 211         /**
 212          * min_disc_int - minDiscoverableInterval
 213          */
 214         int min_disc_int;
 215
 216         /**
 217          * max_disc_int - maxDiscoverableInterval
 218          */
 219         int max_disc_int;
 220
 221         /**
 222          * devices - List of known P2P Device peers
 223          */
 224         struct dl_list devices;
 225
 226         /**
 227          * go_neg_peer - Pointer to GO Negotiation peer
 228          */
 229         struct p2p_device *go_neg_peer;
 230
 231         /**
 232          * invite_peer - Pointer to Invite peer
 233          */
 234         struct p2p_device *invite_peer;
 235
 236         const u8 *invite_go_dev_addr;
 237         u8 invite_go_dev_addr_buf[ETH_ALEN];
 238
 239         /**
 240          * sd_peer - Pointer to Service Discovery peer
 241          */
 242         struct p2p_device *sd_peer;
 243
 244         /**
 245          * sd_query - Pointer to Service Discovery query
 246          */
 247         struct p2p_sd_query *sd_query;
 248
 249         /* GO Negotiation data */
 250
 251         /**
 252          * intended_addr - Local Intended P2P Interface Address
 253          *
 254          * This address is used during group owner negotiation as the Intended
 255          * P2P Interface Address and the group interface will be created with
 256          * address as the local address in case of successfully completed
 257          * negotiation.
 258          */
 259         u8 intended_addr[ETH_ALEN];
 260
 261         /**
 262          * go_intent - Local GO Intent to be used during GO Negotiation
 263          */
 264         u8 go_intent;
 265
 266         /**
 267          * next_tie_breaker - Next tie-breaker value to use in GO Negotiation
 268          */
 269         u8 next_tie_breaker;
 270
 271         /**
 272          * ssid - Selected SSID for GO Negotiation (if local end will be GO)
 273          */
 274         u8 ssid[32];
 275
 276         /**
 277          * ssid_len - ssid length in octets
 278          */
 279         size_t ssid_len;
 280
 281         /**
 282          * ssid_set - Whether SSID is already set for GO Negotiation
 283          */
 284         int ssid_set;
 285
 286         /**
 287          * Regulatory class for own operational channel
 288          */
 289         u8 op_reg_class;
 290
 291         /**
 292          * op_channel - Own operational channel
 293          */
 294         u8 op_channel;
 295
 296         /**
 297          * channels - Own supported regulatory classes and channels
 298          *
 299          * List of supposerted channels per regulatory class. The regulatory
 300          * classes are defined in IEEE Std 802.11-2007 Annex J and the
 301          * numbering of the clases depends on the configured country code.
 302          */
 303         struct p2p_channels channels;
 304
 305         enum p2p_pending_action_state {
 306                 P2P_NO_PENDING_ACTION,
 307                 P2P_PENDING_GO_NEG_REQUEST,
 308                 P2P_PENDING_GO_NEG_RESPONSE,
 309                 P2P_PENDING_GO_NEG_RESPONSE_FAILURE,
 310                 P2P_PENDING_GO_NEG_CONFIRM,
 311                 P2P_PENDING_SD,
 312                 P2P_PENDING_PD,
 313                 P2P_PENDING_INVITATION_REQUEST,
 314                 P2P_PENDING_INVITATION_RESPONSE,
 315                 P2P_PENDING_DEV_DISC_REQUEST,
 316                 P2P_PENDING_DEV_DISC_RESPONSE,
 317                 P2P_PENDING_GO_DISC_REQ
 318         } pending_action_state;
 319
 320         unsigned int pending_listen_freq;
 321         unsigned int pending_listen_sec;
 322         unsigned int pending_listen_usec;
 323
 324         u8 dev_capab;
 325
 326         int in_listen;
 327         int drv_in_listen;
 328
 329         /**
 330          * sd_queries - Pending service discovery queries
 331          */
 332         struct p2p_sd_query *sd_queries;
 333
 334         /**
 335          * srv_update_indic - Service Update Indicator for local services
 336          */
 337         u16 srv_update_indic;
 338
 339         struct wpabuf *sd_resp; /* Fragmented SD response */
 340         u8 sd_resp_addr[ETH_ALEN];
 341         u8 sd_resp_dialog_token;
 342         size_t sd_resp_pos; /* Offset in sd_resp */
 343         u8 sd_frag_id;
 344
 345         struct wpabuf *sd_rx_resp; /* Reassembled SD response */
 346         u16 sd_rx_update_indic;
 347
 348         /* P2P Invitation data */
 349         enum p2p_invite_role inv_role;
 350         u8 inv_bssid[ETH_ALEN];
 351         int inv_bssid_set;
 352         u8 inv_ssid[32];
 353         size_t inv_ssid_len;
 354         u8 inv_sa[ETH_ALEN];
 355         u8 inv_group_bssid[ETH_ALEN];
 356         u8 *inv_group_bssid_ptr;
 357         u8 inv_go_dev_addr[ETH_ALEN];
 358         u8 inv_status;
 359         int inv_op_freq;
 360         int inv_persistent;
 361
 362         enum p2p_discovery_type find_type;
 363         unsigned int last_p2p_find_timeout;
 364         u8 last_prog_scan_class;
 365         u8 last_prog_scan_chan;
 366         int p2p_scan_running;
 367         enum p2p_after_scan {
 368                 P2P_AFTER_SCAN_NOTHING,
 369                 P2P_AFTER_SCAN_LISTEN,
 370                 P2P_AFTER_SCAN_CONNECT
 371         } start_after_scan;
 372         u8 after_scan_peer[ETH_ALEN];
 373         struct p2p_pending_action_tx *after_scan_tx;
 374
 375         /* Requested device types for find/search */
 376         unsigned int num_req_dev_types;
 377         u8 *req_dev_types;
 378         u8 *find_dev_id;
 379         u8 find_dev_id_buf[ETH_ALEN];
 380
 381         struct p2p_group **groups;
 382         size_t num_groups;
 383
 384         struct p2p_device *pending_client_disc_go;
 385         u8 pending_client_disc_addr[ETH_ALEN];
 386         u8 pending_dev_disc_dialog_token;
 387         u8 pending_dev_disc_addr[ETH_ALEN];
 388         int pending_dev_disc_freq;
 389         unsigned int pending_client_disc_freq;
 390
 391         int ext_listen_only;
 392         unsigned int ext_listen_period;
 393         unsigned int ext_listen_interval;
 394         unsigned int ext_listen_interval_sec;
 395         unsigned int ext_listen_interval_usec;
 396
 397         u8 peer_filter[ETH_ALEN];
 398
 399         int cross_connect;
 400
 401         int best_freq_24;
 402         int best_freq_5;
 403         int best_freq_overall;
 404
 405         /**
 406          * wps_vendor_ext - WPS Vendor Extensions to add
 407          */
 408         struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT];
 409
 410         /*
 411          * user_initiated_pd - Whether a PD request is user initiated or not.
 412          */
 413         u8 user_initiated_pd;
 414
 415         /*
 416          * Keep track of which peer a given PD request was sent to.
 417          * Used to raise a timeout alert in case there is no response.
 418          */
 419         u8 pending_pd_devaddr[ETH_ALEN];
 420
 421         /*
 422          * Retry counter for provision discovery requests when issued
 423          * in IDLE state.
 424          */
 425         int pd_retries;
 426 };
 427
 428 /**
 429  * struct p2p_message - Parsed P2P message (or P2P IE)
 430  */
 431 struct p2p_message {
 432         struct wpabuf *p2p_attributes;
 433         struct wpabuf *wps_attributes;
 434
 435         u8 dialog_token;
 436
 437         const u8 *capability;
 438         const u8 *go_intent;
 439         const u8 *status;
 440         const u8 *listen_channel;
 441         const u8 *operating_channel;
 442         const u8 *channel_list;
 443         u8 channel_list_len;
 444         const u8 *config_timeout;
 445         const u8 *intended_addr;
 446         const u8 *group_bssid;
 447         const u8 *invitation_flags;
 448
 449         const u8 *group_info;
 450         size_t group_info_len;
 451
 452         const u8 *group_id;
 453         size_t group_id_len;
 454
 455         const u8 *device_id;
 456
 457         const u8 *manageability;
 458
 459         const u8 *noa;
 460         size_t noa_len;
 461
 462         const u8 *ext_listen_timing;
 463
 464         const u8 *minor_reason_code;
 465
 466         /* P2P Device Info */
 467         const u8 *p2p_device_info;
 468         size_t p2p_device_info_len;
 469         const u8 *p2p_device_addr;
 470         const u8 *pri_dev_type;
 471         u8 num_sec_dev_types;
 472         char device_name[33];
 473         u16 config_methods;
 474
 475         /* WPS IE */
 476         u16 dev_password_id;
 477         u16 wps_config_methods;
 478         const u8 *wps_pri_dev_type;
 479         const u8 *wps_sec_dev_type_list;
 480         size_t wps_sec_dev_type_list_len;
 481         const u8 *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT];
 482         size_t wps_vendor_ext_len[P2P_MAX_WPS_VENDOR_EXT];
 483         const u8 *manufacturer;
 484         size_t manufacturer_len;
 485         const u8 *model_name;
 486         size_t model_name_len;
 487         const u8 *model_number;
 488         size_t model_number_len;
 489         const u8 *serial_number;
 490         size_t serial_number_len;
 491
 492         /* DS Parameter Set IE */
 493         const u8 *ds_params;
 494
 495         /* SSID IE */
 496         const u8 *ssid;
 497 };
 498
 499
 500 #define P2P_MAX_GROUP_ENTRIES 50
 501
 502 struct p2p_group_info {
 503         unsigned int num_clients;
 504         struct p2p_client_info {
 505                 const u8 *p2p_device_addr;
 506                 const u8 *p2p_interface_addr;
 507                 u8 dev_capab;
 508                 u16 config_methods;
 509                 const u8 *pri_dev_type;
 510                 u8 num_sec_dev_types;
 511                 const u8 *sec_dev_types;
 512                 const char *dev_name;
 513                 size_t dev_name_len;
 514         } client[P2P_MAX_GROUP_ENTRIES];
 515 };
 516
 517
 518 /* p2p_utils.c */
 519 int p2p_random(char *buf, size_t len);
 520 int p2p_channel_to_freq(const char *country, int reg_class, int channel);
 521 int p2p_freq_to_channel(const char *country, unsigned int freq, u8 *reg_class,
 522                         u8 *channel);
 523 void p2p_channels_intersect(const struct p2p_channels *a,
 524                             const struct p2p_channels *b,
 525                             struct p2p_channels *res);
 526 int p2p_channels_includes(const struct p2p_channels *channels, u8 reg_class,
 527                           u8 channel);
 528
 529 /* p2p_parse.c */
 530 int p2p_parse_p2p_ie(const struct wpabuf *buf, struct p2p_message *msg);
 531 int p2p_parse_ies(const u8 *data, size_t len, struct p2p_message *msg);
 532 int p2p_parse(const u8 *data, size_t len, struct p2p_message *msg);
 533 void p2p_parse_free(struct p2p_message *msg);
 534 int p2p_attr_text(struct wpabuf *data, char *buf, char *end);
 535 int p2p_group_info_parse(const u8 *gi, size_t gi_len,
 536                          struct p2p_group_info *info);
 537
 538 /* p2p_build.c */
 539
 540 struct p2p_noa_desc {
 541         u8 count_type;
 542         u32 duration;
 543         u32 interval;
 544         u32 start_time;
 545 };
 546
 547 /* p2p_group.c */
 548 const u8 * p2p_group_get_interface_addr(struct p2p_group *group);
 549 u8 p2p_group_presence_req(struct p2p_group *group,
 550                           const u8 *client_interface_addr,
 551                           const u8 *noa, size_t noa_len);
 552
 553
 554 void p2p_buf_add_action_hdr(struct wpabuf *buf, u8 subtype, u8 dialog_token);
 555 void p2p_buf_add_public_action_hdr(struct wpabuf *buf, u8 subtype,
 556                                    u8 dialog_token);
 557 u8 * p2p_buf_add_ie_hdr(struct wpabuf *buf);
 558 void p2p_buf_add_status(struct wpabuf *buf, u8 status);
 559 void p2p_buf_add_device_info(struct wpabuf *buf, struct p2p_data *p2p,
 560                              struct p2p_device *peer);
 561 void p2p_buf_add_device_id(struct wpabuf *buf, const u8 *dev_addr);
 562 void p2p_buf_update_ie_hdr(struct wpabuf *buf, u8 *len);
 563 void p2p_buf_add_capability(struct wpabuf *buf, u8 dev_capab, u8 group_capab);
 564 void p2p_buf_add_go_intent(struct wpabuf *buf, u8 go_intent);
 565 void p2p_buf_add_listen_channel(struct wpabuf *buf, const char *country,
 566                                 u8 reg_class, u8 channel);
 567 void p2p_buf_add_operating_channel(struct wpabuf *buf, const char *country,
 568                                    u8 reg_class, u8 channel);
 569 void p2p_buf_add_channel_list(struct wpabuf *buf, const char *country,
 570                               struct p2p_channels *chan);
 571 void p2p_buf_add_config_timeout(struct wpabuf *buf, u8 go_timeout,
 572                                 u8 client_timeout);
 573 void p2p_buf_add_intended_addr(struct wpabuf *buf, const u8 *interface_addr);
 574 void p2p_buf_add_group_bssid(struct wpabuf *buf, const u8 *bssid);
 575 void p2p_buf_add_group_id(struct wpabuf *buf, const u8 *dev_addr,
 576                           const u8 *ssid, size_t ssid_len);
 577 void p2p_buf_add_invitation_flags(struct wpabuf *buf, u8 flags);
 578 void p2p_buf_add_noa(struct wpabuf *buf, u8 noa_index, u8 opp_ps, u8 ctwindow,
 579                      struct p2p_noa_desc *desc1, struct p2p_noa_desc *desc2);
 580 void p2p_buf_add_ext_listen_timing(struct wpabuf *buf, u16 period,
 581                                    u16 interval);
 582 void p2p_buf_add_p2p_interface(struct wpabuf *buf, struct p2p_data *p2p);
 583 void p2p_build_wps_ie(struct p2p_data *p2p, struct wpabuf *buf, u16 pw_id,
 584                       int all_attr);
 585
 586 /* p2p_sd.c */
 587 struct p2p_sd_query * p2p_pending_sd_req(struct p2p_data *p2p,
 588                                          struct p2p_device *dev);
 589 void p2p_free_sd_queries(struct p2p_data *p2p);
 590 void p2p_rx_gas_initial_req(struct p2p_data *p2p, const u8 *sa,
 591                             const u8 *data, size_t len, int rx_freq);
 592 void p2p_rx_gas_initial_resp(struct p2p_data *p2p, const u8 *sa,
 593                              const u8 *data, size_t len, int rx_freq);
 594 void p2p_rx_gas_comeback_req(struct p2p_data *p2p, const u8 *sa,
 595                              const u8 *data, size_t len, int rx_freq);
 596 void p2p_rx_gas_comeback_resp(struct p2p_data *p2p, const u8 *sa,
 597                               const u8 *data, size_t len, int rx_freq);
 598 int p2p_start_sd(struct p2p_data *p2p, struct p2p_device *dev);
 599
 600 /* p2p_go_neg.c */
 601 int p2p_peer_channels_check(struct p2p_data *p2p, struct p2p_channels *own,
 602                             struct p2p_device *dev,
 603                             const u8 *channel_list, size_t channel_list_len);
 604 void p2p_process_go_neg_req(struct p2p_data *p2p, const u8 *sa,
 605                             const u8 *data, size_t len, int rx_freq);
 606 void p2p_process_go_neg_resp(struct p2p_data *p2p, const u8 *sa,
 607                              const u8 *data, size_t len, int rx_freq);
 608 void p2p_process_go_neg_conf(struct p2p_data *p2p, const u8 *sa,
 609                              const u8 *data, size_t len);
 610 int p2p_connect_send(struct p2p_data *p2p, struct p2p_device *dev);
 611
 612 /* p2p_pd.c */
 613 void p2p_process_prov_disc_req(struct p2p_data *p2p, const u8 *sa,
 614                                const u8 *data, size_t len, int rx_freq);
 615 void p2p_process_prov_disc_resp(struct p2p_data *p2p, const u8 *sa,
 616                                 const u8 *data, size_t len);
 617 int p2p_send_prov_disc_req(struct p2p_data *p2p, struct p2p_device *dev,
 618                            int join, int force_freq);
 619 void p2p_reset_pending_pd(struct p2p_data *p2p);
 620
 621 /* p2p_invitation.c */
 622 void p2p_process_invitation_req(struct p2p_data *p2p, const u8 *sa,
 623                                 const u8 *data, size_t len, int rx_freq);
 624 void p2p_process_invitation_resp(struct p2p_data *p2p, const u8 *sa,
 625                                  const u8 *data, size_t len);
 626 int p2p_invite_send(struct p2p_data *p2p, struct p2p_device *dev,
 627                     const u8 *go_dev_addr);
 628 void p2p_invitation_req_cb(struct p2p_data *p2p, int success);
 629 void p2p_invitation_resp_cb(struct p2p_data *p2p, int success);
 630
 631 /* p2p_dev_disc.c */
 632 void p2p_process_dev_disc_req(struct p2p_data *p2p, const u8 *sa,
 633                               const u8 *data, size_t len, int rx_freq);
 634 void p2p_dev_disc_req_cb(struct p2p_data *p2p, int success);
 635 int p2p_send_dev_disc_req(struct p2p_data *p2p, struct p2p_device *dev);
 636 void p2p_dev_disc_resp_cb(struct p2p_data *p2p, int success);
 637 void p2p_process_dev_disc_resp(struct p2p_data *p2p, const u8 *sa,
 638                                const u8 *data, size_t len);
 639 void p2p_go_disc_req_cb(struct p2p_data *p2p, int success);
 640 void p2p_process_go_disc_req(struct p2p_data *p2p, const u8 *da, const u8 *sa,
 641                              const u8 *data, size_t len, int rx_freq);
 642
 643 /* p2p.c */
 644 void p2p_set_state(struct p2p_data *p2p, int new_state);
 645 void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec,
 646                      unsigned int usec);
 647 void p2p_clear_timeout(struct p2p_data *p2p);
 648 void p2p_continue_find(struct p2p_data *p2p);
 649 struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
 650                                                 const u8 *addr,
 651                                                 struct p2p_message *msg);
 652 void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
 653                       struct p2p_device *dev, struct p2p_message *msg);
 654 int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq, int level,
 655                    const u8 *ies, size_t ies_len);
 656 struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr);
 657 struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p,
 658                                              const u8 *addr);
 659 void p2p_go_neg_failed(struct p2p_data *p2p, struct p2p_device *peer,
 660                        int status);
 661 void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer);
 662 int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps);
 663 int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
 664                         size_t num_req_dev_type);
 665 struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p);
 666 void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len);
 667 int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
 668                     const u8 *src, const u8 *bssid, const u8 *buf,
 669                     size_t len, unsigned int wait_time);
 670
 671 #endif /* P2P_I_H */