Home | History | Annotate | Download | only in p2p
      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 #ifdef ANDROID_P2P
    227 	/**
    228 	 * sd_dev_list - device pointer to be serviced next
    229 	 * for service discovery
    230 	 */
    231 	struct dl_list *sd_dev_list;
    232 #endif
    233 
    234 	/**
    235 	 * go_neg_peer - Pointer to GO Negotiation peer
    236 	 */
    237 	struct p2p_device *go_neg_peer;
    238 
    239 	/**
    240 	 * invite_peer - Pointer to Invite peer
    241 	 */
    242 	struct p2p_device *invite_peer;
    243 
    244 	const u8 *invite_go_dev_addr;
    245 	u8 invite_go_dev_addr_buf[ETH_ALEN];
    246 
    247 	/**
    248 	 * sd_peer - Pointer to Service Discovery peer
    249 	 */
    250 	struct p2p_device *sd_peer;
    251 
    252 	/**
    253 	 * sd_query - Pointer to Service Discovery query
    254 	 */
    255 	struct p2p_sd_query *sd_query;
    256 
    257 	/* GO Negotiation data */
    258 
    259 	/**
    260 	 * intended_addr - Local Intended P2P Interface Address
    261 	 *
    262 	 * This address is used during group owner negotiation as the Intended
    263 	 * P2P Interface Address and the group interface will be created with
    264 	 * address as the local address in case of successfully completed
    265 	 * negotiation.
    266 	 */
    267 	u8 intended_addr[ETH_ALEN];
    268 
    269 	/**
    270 	 * go_intent - Local GO Intent to be used during GO Negotiation
    271 	 */
    272 	u8 go_intent;
    273 
    274 	/**
    275 	 * next_tie_breaker - Next tie-breaker value to use in GO Negotiation
    276 	 */
    277 	u8 next_tie_breaker;
    278 
    279 	/**
    280 	 * ssid - Selected SSID for GO Negotiation (if local end will be GO)
    281 	 */
    282 	u8 ssid[32];
    283 
    284 	/**
    285 	 * ssid_len - ssid length in octets
    286 	 */
    287 	size_t ssid_len;
    288 
    289 	/**
    290 	 * ssid_set - Whether SSID is already set for GO Negotiation
    291 	 */
    292 	int ssid_set;
    293 
    294 	/**
    295 	 * Regulatory class for own operational channel
    296 	 */
    297 	u8 op_reg_class;
    298 
    299 	/**
    300 	 * op_channel - Own operational channel
    301 	 */
    302 	u8 op_channel;
    303 
    304 	/**
    305 	 * channels - Own supported regulatory classes and channels
    306 	 *
    307 	 * List of supposerted channels per regulatory class. The regulatory
    308 	 * classes are defined in IEEE Std 802.11-2007 Annex J and the
    309 	 * numbering of the clases depends on the configured country code.
    310 	 */
    311 	struct p2p_channels channels;
    312 
    313 	enum p2p_pending_action_state {
    314 		P2P_NO_PENDING_ACTION,
    315 		P2P_PENDING_GO_NEG_REQUEST,
    316 		P2P_PENDING_GO_NEG_RESPONSE,
    317 		P2P_PENDING_GO_NEG_RESPONSE_FAILURE,
    318 		P2P_PENDING_GO_NEG_CONFIRM,
    319 		P2P_PENDING_SD,
    320 		P2P_PENDING_PD,
    321 		P2P_PENDING_INVITATION_REQUEST,
    322 		P2P_PENDING_INVITATION_RESPONSE,
    323 		P2P_PENDING_DEV_DISC_REQUEST,
    324 		P2P_PENDING_DEV_DISC_RESPONSE,
    325 		P2P_PENDING_GO_DISC_REQ
    326 	} pending_action_state;
    327 
    328 	unsigned int pending_listen_freq;
    329 	unsigned int pending_listen_sec;
    330 	unsigned int pending_listen_usec;
    331 
    332 	u8 dev_capab;
    333 
    334 	int in_listen;
    335 	int drv_in_listen;
    336 
    337 	/**
    338 	 * sd_queries - Pending service discovery queries
    339 	 */
    340 	struct p2p_sd_query *sd_queries;
    341 
    342 	/**
    343 	 * srv_update_indic - Service Update Indicator for local services
    344 	 */
    345 	u16 srv_update_indic;
    346 
    347 	struct wpabuf *sd_resp; /* Fragmented SD response */
    348 	u8 sd_resp_addr[ETH_ALEN];
    349 	u8 sd_resp_dialog_token;
    350 	size_t sd_resp_pos; /* Offset in sd_resp */
    351 	u8 sd_frag_id;
    352 
    353 	struct wpabuf *sd_rx_resp; /* Reassembled SD response */
    354 	u16 sd_rx_update_indic;
    355 
    356 	/* P2P Invitation data */
    357 	enum p2p_invite_role inv_role;
    358 	u8 inv_bssid[ETH_ALEN];
    359 	int inv_bssid_set;
    360 	u8 inv_ssid[32];
    361 	size_t inv_ssid_len;
    362 	u8 inv_sa[ETH_ALEN];
    363 	u8 inv_group_bssid[ETH_ALEN];
    364 	u8 *inv_group_bssid_ptr;
    365 	u8 inv_go_dev_addr[ETH_ALEN];
    366 	u8 inv_status;
    367 	int inv_op_freq;
    368 	int inv_persistent;
    369 
    370 	enum p2p_discovery_type find_type;
    371 	unsigned int last_p2p_find_timeout;
    372 	u8 last_prog_scan_class;
    373 	u8 last_prog_scan_chan;
    374 	int p2p_scan_running;
    375 	enum p2p_after_scan {
    376 		P2P_AFTER_SCAN_NOTHING,
    377 		P2P_AFTER_SCAN_LISTEN,
    378 		P2P_AFTER_SCAN_CONNECT
    379 	} start_after_scan;
    380 	u8 after_scan_peer[ETH_ALEN];
    381 	struct p2p_pending_action_tx *after_scan_tx;
    382 
    383 	/* Requested device types for find/search */
    384 	unsigned int num_req_dev_types;
    385 	u8 *req_dev_types;
    386 	u8 *find_dev_id;
    387 	u8 find_dev_id_buf[ETH_ALEN];
    388 
    389 	struct p2p_group **groups;
    390 	size_t num_groups;
    391 
    392 	struct p2p_device *pending_client_disc_go;
    393 	u8 pending_client_disc_addr[ETH_ALEN];
    394 	u8 pending_dev_disc_dialog_token;
    395 	u8 pending_dev_disc_addr[ETH_ALEN];
    396 	int pending_dev_disc_freq;
    397 	unsigned int pending_client_disc_freq;
    398 
    399 	int ext_listen_only;
    400 	unsigned int ext_listen_period;
    401 	unsigned int ext_listen_interval;
    402 	unsigned int ext_listen_interval_sec;
    403 	unsigned int ext_listen_interval_usec;
    404 
    405 	u8 peer_filter[ETH_ALEN];
    406 
    407 	int cross_connect;
    408 
    409 	int best_freq_24;
    410 	int best_freq_5;
    411 	int best_freq_overall;
    412 
    413 	/**
    414 	 * wps_vendor_ext - WPS Vendor Extensions to add
    415 	 */
    416 	struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT];
    417 
    418 	/*
    419 	 * user_initiated_pd - Whether a PD request is user initiated or not.
    420 	 */
    421 	u8 user_initiated_pd;
    422 
    423 	/*
    424 	 * Keep track of which peer a given PD request was sent to.
    425 	 * Used to raise a timeout alert in case there is no response.
    426 	 */
    427 	u8 pending_pd_devaddr[ETH_ALEN];
    428 
    429 	/*
    430 	 * Retry counter for provision discovery requests when issued
    431 	 * in IDLE state.
    432 	 */
    433 	int pd_retries;
    434 };
    435 
    436 /**
    437  * struct p2p_message - Parsed P2P message (or P2P IE)
    438  */
    439 struct p2p_message {
    440 	struct wpabuf *p2p_attributes;
    441 	struct wpabuf *wps_attributes;
    442 
    443 	u8 dialog_token;
    444 
    445 	const u8 *capability;
    446 	const u8 *go_intent;
    447 	const u8 *status;
    448 	const u8 *listen_channel;
    449 	const u8 *operating_channel;
    450 	const u8 *channel_list;
    451 	u8 channel_list_len;
    452 	const u8 *config_timeout;
    453 	const u8 *intended_addr;
    454 	const u8 *group_bssid;
    455 	const u8 *invitation_flags;
    456 
    457 	const u8 *group_info;
    458 	size_t group_info_len;
    459 
    460 	const u8 *group_id;
    461 	size_t group_id_len;
    462 
    463 	const u8 *device_id;
    464 
    465 	const u8 *manageability;
    466 
    467 	const u8 *noa;
    468 	size_t noa_len;
    469 
    470 	const u8 *ext_listen_timing;
    471 
    472 	const u8 *minor_reason_code;
    473 
    474 	/* P2P Device Info */
    475 	const u8 *p2p_device_info;
    476 	size_t p2p_device_info_len;
    477 	const u8 *p2p_device_addr;
    478 	const u8 *pri_dev_type;
    479 	u8 num_sec_dev_types;
    480 	char device_name[33];
    481 	u16 config_methods;
    482 
    483 	/* WPS IE */
    484 	u16 dev_password_id;
    485 	u16 wps_config_methods;
    486 	const u8 *wps_pri_dev_type;
    487 	const u8 *wps_sec_dev_type_list;
    488 	size_t wps_sec_dev_type_list_len;
    489 	const u8 *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT];
    490 	size_t wps_vendor_ext_len[P2P_MAX_WPS_VENDOR_EXT];
    491 	const u8 *manufacturer;
    492 	size_t manufacturer_len;
    493 	const u8 *model_name;
    494 	size_t model_name_len;
    495 	const u8 *model_number;
    496 	size_t model_number_len;
    497 	const u8 *serial_number;
    498 	size_t serial_number_len;
    499 
    500 	/* DS Parameter Set IE */
    501 	const u8 *ds_params;
    502 
    503 	/* SSID IE */
    504 	const u8 *ssid;
    505 };
    506 
    507 
    508 #define P2P_MAX_GROUP_ENTRIES 50
    509 
    510 struct p2p_group_info {
    511 	unsigned int num_clients;
    512 	struct p2p_client_info {
    513 		const u8 *p2p_device_addr;
    514 		const u8 *p2p_interface_addr;
    515 		u8 dev_capab;
    516 		u16 config_methods;
    517 		const u8 *pri_dev_type;
    518 		u8 num_sec_dev_types;
    519 		const u8 *sec_dev_types;
    520 		const char *dev_name;
    521 		size_t dev_name_len;
    522 	} client[P2P_MAX_GROUP_ENTRIES];
    523 };
    524 
    525 
    526 /* p2p_utils.c */
    527 int p2p_random(char *buf, size_t len);
    528 int p2p_channel_to_freq(const char *country, int reg_class, int channel);
    529 int p2p_freq_to_channel(const char *country, unsigned int freq, u8 *reg_class,
    530 			u8 *channel);
    531 void p2p_channels_intersect(const struct p2p_channels *a,
    532 			    const struct p2p_channels *b,
    533 			    struct p2p_channels *res);
    534 int p2p_channels_includes(const struct p2p_channels *channels, u8 reg_class,
    535 			  u8 channel);
    536 
    537 /* p2p_parse.c */
    538 int p2p_parse_p2p_ie(const struct wpabuf *buf, struct p2p_message *msg);
    539 int p2p_parse_ies(const u8 *data, size_t len, struct p2p_message *msg);
    540 int p2p_parse(const u8 *data, size_t len, struct p2p_message *msg);
    541 void p2p_parse_free(struct p2p_message *msg);
    542 int p2p_attr_text(struct wpabuf *data, char *buf, char *end);
    543 int p2p_group_info_parse(const u8 *gi, size_t gi_len,
    544 			 struct p2p_group_info *info);
    545 
    546 /* p2p_build.c */
    547 
    548 struct p2p_noa_desc {
    549 	u8 count_type;
    550 	u32 duration;
    551 	u32 interval;
    552 	u32 start_time;
    553 };
    554 
    555 /* p2p_group.c */
    556 const u8 * p2p_group_get_interface_addr(struct p2p_group *group);
    557 u8 p2p_group_presence_req(struct p2p_group *group,
    558 			  const u8 *client_interface_addr,
    559 			  const u8 *noa, size_t noa_len);
    560 
    561 
    562 void p2p_buf_add_action_hdr(struct wpabuf *buf, u8 subtype, u8 dialog_token);
    563 void p2p_buf_add_public_action_hdr(struct wpabuf *buf, u8 subtype,
    564 				   u8 dialog_token);
    565 u8 * p2p_buf_add_ie_hdr(struct wpabuf *buf);
    566 void p2p_buf_add_status(struct wpabuf *buf, u8 status);
    567 void p2p_buf_add_device_info(struct wpabuf *buf, struct p2p_data *p2p,
    568 			     struct p2p_device *peer);
    569 void p2p_buf_add_device_id(struct wpabuf *buf, const u8 *dev_addr);
    570 void p2p_buf_update_ie_hdr(struct wpabuf *buf, u8 *len);
    571 void p2p_buf_add_capability(struct wpabuf *buf, u8 dev_capab, u8 group_capab);
    572 void p2p_buf_add_go_intent(struct wpabuf *buf, u8 go_intent);
    573 void p2p_buf_add_listen_channel(struct wpabuf *buf, const char *country,
    574 				u8 reg_class, u8 channel);
    575 void p2p_buf_add_operating_channel(struct wpabuf *buf, const char *country,
    576 				   u8 reg_class, u8 channel);
    577 void p2p_buf_add_channel_list(struct wpabuf *buf, const char *country,
    578 			      struct p2p_channels *chan);
    579 void p2p_buf_add_config_timeout(struct wpabuf *buf, u8 go_timeout,
    580 				u8 client_timeout);
    581 void p2p_buf_add_intended_addr(struct wpabuf *buf, const u8 *interface_addr);
    582 void p2p_buf_add_group_bssid(struct wpabuf *buf, const u8 *bssid);
    583 void p2p_buf_add_group_id(struct wpabuf *buf, const u8 *dev_addr,
    584 			  const u8 *ssid, size_t ssid_len);
    585 void p2p_buf_add_invitation_flags(struct wpabuf *buf, u8 flags);
    586 void p2p_buf_add_noa(struct wpabuf *buf, u8 noa_index, u8 opp_ps, u8 ctwindow,
    587 		     struct p2p_noa_desc *desc1, struct p2p_noa_desc *desc2);
    588 void p2p_buf_add_ext_listen_timing(struct wpabuf *buf, u16 period,
    589 				   u16 interval);
    590 void p2p_buf_add_p2p_interface(struct wpabuf *buf, struct p2p_data *p2p);
    591 void p2p_build_wps_ie(struct p2p_data *p2p, struct wpabuf *buf, u16 pw_id,
    592 		      int all_attr);
    593 
    594 /* p2p_sd.c */
    595 struct p2p_sd_query * p2p_pending_sd_req(struct p2p_data *p2p,
    596 					 struct p2p_device *dev);
    597 void p2p_free_sd_queries(struct p2p_data *p2p);
    598 void p2p_rx_gas_initial_req(struct p2p_data *p2p, const u8 *sa,
    599 			    const u8 *data, size_t len, int rx_freq);
    600 void p2p_rx_gas_initial_resp(struct p2p_data *p2p, const u8 *sa,
    601 			     const u8 *data, size_t len, int rx_freq);
    602 void p2p_rx_gas_comeback_req(struct p2p_data *p2p, const u8 *sa,
    603 			     const u8 *data, size_t len, int rx_freq);
    604 void p2p_rx_gas_comeback_resp(struct p2p_data *p2p, const u8 *sa,
    605 			      const u8 *data, size_t len, int rx_freq);
    606 int p2p_start_sd(struct p2p_data *p2p, struct p2p_device *dev);
    607 
    608 /* p2p_go_neg.c */
    609 int p2p_peer_channels_check(struct p2p_data *p2p, struct p2p_channels *own,
    610 			    struct p2p_device *dev,
    611 			    const u8 *channel_list, size_t channel_list_len);
    612 void p2p_process_go_neg_req(struct p2p_data *p2p, const u8 *sa,
    613 			    const u8 *data, size_t len, int rx_freq);
    614 void p2p_process_go_neg_resp(struct p2p_data *p2p, const u8 *sa,
    615 			     const u8 *data, size_t len, int rx_freq);
    616 void p2p_process_go_neg_conf(struct p2p_data *p2p, const u8 *sa,
    617 			     const u8 *data, size_t len);
    618 int p2p_connect_send(struct p2p_data *p2p, struct p2p_device *dev);
    619 
    620 /* p2p_pd.c */
    621 void p2p_process_prov_disc_req(struct p2p_data *p2p, const u8 *sa,
    622 			       const u8 *data, size_t len, int rx_freq);
    623 void p2p_process_prov_disc_resp(struct p2p_data *p2p, const u8 *sa,
    624 				const u8 *data, size_t len);
    625 int p2p_send_prov_disc_req(struct p2p_data *p2p, struct p2p_device *dev,
    626 			   int join, int force_freq);
    627 void p2p_reset_pending_pd(struct p2p_data *p2p);
    628 
    629 /* p2p_invitation.c */
    630 void p2p_process_invitation_req(struct p2p_data *p2p, const u8 *sa,
    631 				const u8 *data, size_t len, int rx_freq);
    632 void p2p_process_invitation_resp(struct p2p_data *p2p, const u8 *sa,
    633 				 const u8 *data, size_t len);
    634 int p2p_invite_send(struct p2p_data *p2p, struct p2p_device *dev,
    635 		    const u8 *go_dev_addr);
    636 void p2p_invitation_req_cb(struct p2p_data *p2p, int success);
    637 void p2p_invitation_resp_cb(struct p2p_data *p2p, int success);
    638 
    639 /* p2p_dev_disc.c */
    640 void p2p_process_dev_disc_req(struct p2p_data *p2p, const u8 *sa,
    641 			      const u8 *data, size_t len, int rx_freq);
    642 void p2p_dev_disc_req_cb(struct p2p_data *p2p, int success);
    643 int p2p_send_dev_disc_req(struct p2p_data *p2p, struct p2p_device *dev);
    644 void p2p_dev_disc_resp_cb(struct p2p_data *p2p, int success);
    645 void p2p_process_dev_disc_resp(struct p2p_data *p2p, const u8 *sa,
    646 			       const u8 *data, size_t len);
    647 void p2p_go_disc_req_cb(struct p2p_data *p2p, int success);
    648 void p2p_process_go_disc_req(struct p2p_data *p2p, const u8 *da, const u8 *sa,
    649 			     const u8 *data, size_t len, int rx_freq);
    650 
    651 /* p2p.c */
    652 void p2p_set_state(struct p2p_data *p2p, int new_state);
    653 void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec,
    654 		     unsigned int usec);
    655 void p2p_clear_timeout(struct p2p_data *p2p);
    656 void p2p_continue_find(struct p2p_data *p2p);
    657 struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
    658 						const u8 *addr,
    659 						struct p2p_message *msg);
    660 void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
    661 		      struct p2p_device *dev, struct p2p_message *msg);
    662 int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq, int level,
    663 		   const u8 *ies, size_t ies_len);
    664 struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr);
    665 struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p,
    666 					     const u8 *addr);
    667 void p2p_go_neg_failed(struct p2p_data *p2p, struct p2p_device *peer,
    668 		       int status);
    669 void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer);
    670 int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps);
    671 int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
    672 			size_t num_req_dev_type);
    673 struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p);
    674 void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len);
    675 int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
    676 		    const u8 *src, const u8 *bssid, const u8 *buf,
    677 		    size_t len, unsigned int wait_time);
    678 
    679 #endif /* P2P_I_H */
    680