xref: /freebsd/contrib/wpa/src/p2p/p2p_i.h (revision f05cddf9)
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 #define P2P_DEV_PD_BEFORE_GO_NEG BIT(17)
94 	unsigned int flags;
95 
96 	int status; /* enum p2p_status_code */
97 	unsigned int wait_count;
98 	unsigned int connect_reqs;
99 	unsigned int invitation_reqs;
100 
101 	u16 ext_listen_period;
102 	u16 ext_listen_interval;
103 
104 	u8 go_timeout;
105 	u8 client_timeout;
106 };
107 
108 struct p2p_sd_query {
109 	struct p2p_sd_query *next;
110 	u8 peer[ETH_ALEN];
111 	int for_all_peers;
112 	int wsd; /* Wi-Fi Display Service Discovery Request */
113 	struct wpabuf *tlvs;
114 };
115 
116 struct p2p_pending_action_tx {
117 	unsigned int freq;
118 	u8 dst[ETH_ALEN];
119 	u8 src[ETH_ALEN];
120 	u8 bssid[ETH_ALEN];
121 	size_t len;
122 	unsigned int wait_time;
123 	/* Followed by len octets of the frame */
124 };
125 
126 /**
127  * struct p2p_data - P2P module data (internal to P2P module)
128  */
129 struct p2p_data {
130 	/**
131 	 * cfg - P2P module configuration
132 	 *
133 	 * This is included in the same memory allocation with the
134 	 * struct p2p_data and as such, must not be freed separately.
135 	 */
136 	struct p2p_config *cfg;
137 
138 	/**
139 	 * state - The current P2P state
140 	 */
141 	enum p2p_state {
142 		/**
143 		 * P2P_IDLE - Idle
144 		 */
145 		P2P_IDLE,
146 
147 		/**
148 		 * P2P_SEARCH - Search (Device Discovery)
149 		 */
150 		P2P_SEARCH,
151 
152 		/**
153 		 * P2P_CONNECT - Trying to start GO Negotiation
154 		 */
155 		P2P_CONNECT,
156 
157 		/**
158 		 * P2P_CONNECT_LISTEN - Listen during GO Negotiation start
159 		 */
160 		P2P_CONNECT_LISTEN,
161 
162 		/**
163 		 * P2P_GO_NEG - In GO Negotiation
164 		 */
165 		P2P_GO_NEG,
166 
167 		/**
168 		 * P2P_LISTEN_ONLY - Listen only
169 		 */
170 		P2P_LISTEN_ONLY,
171 
172 		/**
173 		 * P2P_WAIT_PEER_CONNECT - Waiting peer in List for GO Neg
174 		 */
175 		P2P_WAIT_PEER_CONNECT,
176 
177 		/**
178 		 * P2P_WAIT_PEER_IDLE - Waiting peer idle for GO Neg
179 		 */
180 		P2P_WAIT_PEER_IDLE,
181 
182 		/**
183 		 * P2P_SD_DURING_FIND - Service Discovery during find
184 		 */
185 		P2P_SD_DURING_FIND,
186 
187 		/**
188 		 * P2P_PROVISIONING - Provisioning (during group formation)
189 		 */
190 		P2P_PROVISIONING,
191 
192 		/**
193 		 * P2P_PD_DURING_FIND - Provision Discovery during find
194 		 */
195 		P2P_PD_DURING_FIND,
196 
197 		/**
198 		 * P2P_INVITE - Trying to start Invite
199 		 */
200 		P2P_INVITE,
201 
202 		/**
203 		 * P2P_INVITE_LISTEN - Listen during Invite
204 		 */
205 		P2P_INVITE_LISTEN,
206 
207 		/**
208 		 * P2P_SEARCH_WHEN_READY - Waiting to start Search
209 		 */
210 		P2P_SEARCH_WHEN_READY,
211 
212 		/**
213 		 * P2P_CONTINUE_SEARCH_WHEN_READY - Waiting to continue Search
214 		 */
215 		P2P_CONTINUE_SEARCH_WHEN_READY,
216 	} state;
217 
218 	/**
219 	 * min_disc_int - minDiscoverableInterval
220 	 */
221 	int min_disc_int;
222 
223 	/**
224 	 * max_disc_int - maxDiscoverableInterval
225 	 */
226 	int max_disc_int;
227 
228 	/**
229 	 * max_disc_tu - Maximum number of TUs for discoverable interval
230 	 */
231 	int max_disc_tu;
232 
233 	/**
234 	 * devices - List of known P2P Device peers
235 	 */
236 	struct dl_list devices;
237 
238 	/**
239 	 * go_neg_peer - Pointer to GO Negotiation peer
240 	 */
241 	struct p2p_device *go_neg_peer;
242 
243 	/**
244 	 * invite_peer - Pointer to Invite peer
245 	 */
246 	struct p2p_device *invite_peer;
247 
248 	const u8 *invite_go_dev_addr;
249 	u8 invite_go_dev_addr_buf[ETH_ALEN];
250 
251 	/**
252 	 * sd_peer - Pointer to Service Discovery peer
253 	 */
254 	struct p2p_device *sd_peer;
255 
256 	/**
257 	 * sd_query - Pointer to Service Discovery query
258 	 */
259 	struct p2p_sd_query *sd_query;
260 
261 	/* GO Negotiation data */
262 
263 	/**
264 	 * intended_addr - Local Intended P2P Interface Address
265 	 *
266 	 * This address is used during group owner negotiation as the Intended
267 	 * P2P Interface Address and the group interface will be created with
268 	 * address as the local address in case of successfully completed
269 	 * negotiation.
270 	 */
271 	u8 intended_addr[ETH_ALEN];
272 
273 	/**
274 	 * go_intent - Local GO Intent to be used during GO Negotiation
275 	 */
276 	u8 go_intent;
277 
278 	/**
279 	 * next_tie_breaker - Next tie-breaker value to use in GO Negotiation
280 	 */
281 	u8 next_tie_breaker;
282 
283 	/**
284 	 * ssid - Selected SSID for GO Negotiation (if local end will be GO)
285 	 */
286 	u8 ssid[32];
287 
288 	/**
289 	 * ssid_len - ssid length in octets
290 	 */
291 	size_t ssid_len;
292 
293 	/**
294 	 * ssid_set - Whether SSID is already set for GO Negotiation
295 	 */
296 	int ssid_set;
297 
298 	/**
299 	 * Regulatory class for own operational channel
300 	 */
301 	u8 op_reg_class;
302 
303 	/**
304 	 * op_channel - Own operational channel
305 	 */
306 	u8 op_channel;
307 
308 	/**
309 	 * channels - Own supported regulatory classes and channels
310 	 *
311 	 * List of supposerted channels per regulatory class. The regulatory
312 	 * classes are defined in IEEE Std 802.11-2007 Annex J and the
313 	 * numbering of the clases depends on the configured country code.
314 	 */
315 	struct p2p_channels channels;
316 
317 	enum p2p_pending_action_state {
318 		P2P_NO_PENDING_ACTION,
319 		P2P_PENDING_GO_NEG_REQUEST,
320 		P2P_PENDING_GO_NEG_RESPONSE,
321 		P2P_PENDING_GO_NEG_RESPONSE_FAILURE,
322 		P2P_PENDING_GO_NEG_CONFIRM,
323 		P2P_PENDING_SD,
324 		P2P_PENDING_PD,
325 		P2P_PENDING_INVITATION_REQUEST,
326 		P2P_PENDING_INVITATION_RESPONSE,
327 		P2P_PENDING_DEV_DISC_REQUEST,
328 		P2P_PENDING_DEV_DISC_RESPONSE,
329 		P2P_PENDING_GO_DISC_REQ
330 	} pending_action_state;
331 
332 	unsigned int pending_listen_freq;
333 	unsigned int pending_listen_sec;
334 	unsigned int pending_listen_usec;
335 
336 	u8 dev_capab;
337 
338 	int in_listen;
339 	int drv_in_listen;
340 
341 	/**
342 	 * sd_queries - Pending service discovery queries
343 	 */
344 	struct p2p_sd_query *sd_queries;
345 
346 	/**
347 	 * srv_update_indic - Service Update Indicator for local services
348 	 */
349 	u16 srv_update_indic;
350 
351 	struct wpabuf *sd_resp; /* Fragmented SD response */
352 	u8 sd_resp_addr[ETH_ALEN];
353 	u8 sd_resp_dialog_token;
354 	size_t sd_resp_pos; /* Offset in sd_resp */
355 	u8 sd_frag_id;
356 
357 	struct wpabuf *sd_rx_resp; /* Reassembled SD response */
358 	u16 sd_rx_update_indic;
359 
360 	/* P2P Invitation data */
361 	enum p2p_invite_role inv_role;
362 	u8 inv_bssid[ETH_ALEN];
363 	int inv_bssid_set;
364 	u8 inv_ssid[32];
365 	size_t inv_ssid_len;
366 	u8 inv_sa[ETH_ALEN];
367 	u8 inv_group_bssid[ETH_ALEN];
368 	u8 *inv_group_bssid_ptr;
369 	u8 inv_go_dev_addr[ETH_ALEN];
370 	u8 inv_status;
371 	int inv_op_freq;
372 	int inv_persistent;
373 
374 	enum p2p_discovery_type find_type;
375 	unsigned int last_p2p_find_timeout;
376 	u8 last_prog_scan_class;
377 	u8 last_prog_scan_chan;
378 	int p2p_scan_running;
379 	enum p2p_after_scan {
380 		P2P_AFTER_SCAN_NOTHING,
381 		P2P_AFTER_SCAN_LISTEN,
382 		P2P_AFTER_SCAN_CONNECT
383 	} start_after_scan;
384 	u8 after_scan_peer[ETH_ALEN];
385 	struct p2p_pending_action_tx *after_scan_tx;
386 
387 	/* Requested device types for find/search */
388 	unsigned int num_req_dev_types;
389 	u8 *req_dev_types;
390 	u8 *find_dev_id;
391 	u8 find_dev_id_buf[ETH_ALEN];
392 
393 	struct p2p_group **groups;
394 	size_t num_groups;
395 
396 	struct p2p_device *pending_client_disc_go;
397 	u8 pending_client_disc_addr[ETH_ALEN];
398 	u8 pending_dev_disc_dialog_token;
399 	u8 pending_dev_disc_addr[ETH_ALEN];
400 	int pending_dev_disc_freq;
401 	unsigned int pending_client_disc_freq;
402 
403 	int ext_listen_only;
404 	unsigned int ext_listen_period;
405 	unsigned int ext_listen_interval;
406 	unsigned int ext_listen_interval_sec;
407 	unsigned int ext_listen_interval_usec;
408 
409 	u8 peer_filter[ETH_ALEN];
410 
411 	int cross_connect;
412 
413 	int best_freq_24;
414 	int best_freq_5;
415 	int best_freq_overall;
416 
417 	/**
418 	 * wps_vendor_ext - WPS Vendor Extensions to add
419 	 */
420 	struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT];
421 
422 	/*
423 	 * user_initiated_pd - Whether a PD request is user initiated or not.
424 	 */
425 	u8 user_initiated_pd;
426 
427 	/*
428 	 * Keep track of which peer a given PD request was sent to.
429 	 * Used to raise a timeout alert in case there is no response.
430 	 */
431 	u8 pending_pd_devaddr[ETH_ALEN];
432 
433 	/*
434 	 * Retry counter for provision discovery requests when issued
435 	 * in IDLE state.
436 	 */
437 	int pd_retries;
438 
439 	u8 go_timeout;
440 	u8 client_timeout;
441 
442 	/* Extra delay in milliseconds between search iterations */
443 	unsigned int search_delay;
444 	int in_search_delay;
445 
446 #ifdef CONFIG_WIFI_DISPLAY
447 	struct wpabuf *wfd_ie_beacon;
448 	struct wpabuf *wfd_ie_probe_req;
449 	struct wpabuf *wfd_ie_probe_resp;
450 	struct wpabuf *wfd_ie_assoc_req;
451 	struct wpabuf *wfd_ie_invitation;
452 	struct wpabuf *wfd_ie_prov_disc_req;
453 	struct wpabuf *wfd_ie_prov_disc_resp;
454 	struct wpabuf *wfd_ie_go_neg;
455 	struct wpabuf *wfd_dev_info;
456 	struct wpabuf *wfd_assoc_bssid;
457 	struct wpabuf *wfd_coupled_sink_info;
458 #endif /* CONFIG_WIFI_DISPLAY */
459 };
460 
461 /**
462  * struct p2p_message - Parsed P2P message (or P2P IE)
463  */
464 struct p2p_message {
465 	struct wpabuf *p2p_attributes;
466 	struct wpabuf *wps_attributes;
467 	struct wpabuf *wfd_subelems;
468 
469 	u8 dialog_token;
470 
471 	const u8 *capability;
472 	const u8 *go_intent;
473 	const u8 *status;
474 	const u8 *listen_channel;
475 	const u8 *operating_channel;
476 	const u8 *channel_list;
477 	u8 channel_list_len;
478 	const u8 *config_timeout;
479 	const u8 *intended_addr;
480 	const u8 *group_bssid;
481 	const u8 *invitation_flags;
482 
483 	const u8 *group_info;
484 	size_t group_info_len;
485 
486 	const u8 *group_id;
487 	size_t group_id_len;
488 
489 	const u8 *device_id;
490 
491 	const u8 *manageability;
492 
493 	const u8 *noa;
494 	size_t noa_len;
495 
496 	const u8 *ext_listen_timing;
497 
498 	const u8 *minor_reason_code;
499 
500 	/* P2P Device Info */
501 	const u8 *p2p_device_info;
502 	size_t p2p_device_info_len;
503 	const u8 *p2p_device_addr;
504 	const u8 *pri_dev_type;
505 	u8 num_sec_dev_types;
506 	char device_name[33];
507 	u16 config_methods;
508 
509 	/* WPS IE */
510 	u16 dev_password_id;
511 	u16 wps_config_methods;
512 	const u8 *wps_pri_dev_type;
513 	const u8 *wps_sec_dev_type_list;
514 	size_t wps_sec_dev_type_list_len;
515 	const u8 *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT];
516 	size_t wps_vendor_ext_len[P2P_MAX_WPS_VENDOR_EXT];
517 	const u8 *manufacturer;
518 	size_t manufacturer_len;
519 	const u8 *model_name;
520 	size_t model_name_len;
521 	const u8 *model_number;
522 	size_t model_number_len;
523 	const u8 *serial_number;
524 	size_t serial_number_len;
525 
526 	/* DS Parameter Set IE */
527 	const u8 *ds_params;
528 
529 	/* SSID IE */
530 	const u8 *ssid;
531 };
532 
533 
534 #define P2P_MAX_GROUP_ENTRIES 50
535 
536 struct p2p_group_info {
537 	unsigned int num_clients;
538 	struct p2p_client_info {
539 		const u8 *p2p_device_addr;
540 		const u8 *p2p_interface_addr;
541 		u8 dev_capab;
542 		u16 config_methods;
543 		const u8 *pri_dev_type;
544 		u8 num_sec_dev_types;
545 		const u8 *sec_dev_types;
546 		const char *dev_name;
547 		size_t dev_name_len;
548 	} client[P2P_MAX_GROUP_ENTRIES];
549 };
550 
551 
552 /* p2p_utils.c */
553 int p2p_random(char *buf, size_t len);
554 int p2p_channel_to_freq(const char *country, int reg_class, int channel);
555 int p2p_freq_to_channel(const char *country, unsigned int freq, u8 *reg_class,
556 			u8 *channel);
557 void p2p_channels_intersect(const struct p2p_channels *a,
558 			    const struct p2p_channels *b,
559 			    struct p2p_channels *res);
560 int p2p_channels_includes(const struct p2p_channels *channels, u8 reg_class,
561 			  u8 channel);
562 
563 /* p2p_parse.c */
564 int p2p_parse_p2p_ie(const struct wpabuf *buf, struct p2p_message *msg);
565 int p2p_parse_ies(const u8 *data, size_t len, struct p2p_message *msg);
566 int p2p_parse(const u8 *data, size_t len, struct p2p_message *msg);
567 void p2p_parse_free(struct p2p_message *msg);
568 int p2p_attr_text(struct wpabuf *data, char *buf, char *end);
569 int p2p_group_info_parse(const u8 *gi, size_t gi_len,
570 			 struct p2p_group_info *info);
571 
572 /* p2p_build.c */
573 
574 struct p2p_noa_desc {
575 	u8 count_type;
576 	u32 duration;
577 	u32 interval;
578 	u32 start_time;
579 };
580 
581 /* p2p_group.c */
582 const u8 * p2p_group_get_interface_addr(struct p2p_group *group);
583 u8 p2p_group_presence_req(struct p2p_group *group,
584 			  const u8 *client_interface_addr,
585 			  const u8 *noa, size_t noa_len);
586 int p2p_group_is_group_id_match(struct p2p_group *group, const u8 *group_id,
587 				size_t group_id_len);
588 void p2p_group_update_ies(struct p2p_group *group);
589 struct wpabuf * p2p_group_get_wfd_ie(struct p2p_group *g);
590 
591 
592 void p2p_buf_add_action_hdr(struct wpabuf *buf, u8 subtype, u8 dialog_token);
593 void p2p_buf_add_public_action_hdr(struct wpabuf *buf, u8 subtype,
594 				   u8 dialog_token);
595 u8 * p2p_buf_add_ie_hdr(struct wpabuf *buf);
596 void p2p_buf_add_status(struct wpabuf *buf, u8 status);
597 void p2p_buf_add_device_info(struct wpabuf *buf, struct p2p_data *p2p,
598 			     struct p2p_device *peer);
599 void p2p_buf_add_device_id(struct wpabuf *buf, const u8 *dev_addr);
600 void p2p_buf_update_ie_hdr(struct wpabuf *buf, u8 *len);
601 void p2p_buf_add_capability(struct wpabuf *buf, u8 dev_capab, u8 group_capab);
602 void p2p_buf_add_go_intent(struct wpabuf *buf, u8 go_intent);
603 void p2p_buf_add_listen_channel(struct wpabuf *buf, const char *country,
604 				u8 reg_class, u8 channel);
605 void p2p_buf_add_operating_channel(struct wpabuf *buf, const char *country,
606 				   u8 reg_class, u8 channel);
607 void p2p_buf_add_channel_list(struct wpabuf *buf, const char *country,
608 			      struct p2p_channels *chan);
609 void p2p_buf_add_config_timeout(struct wpabuf *buf, u8 go_timeout,
610 				u8 client_timeout);
611 void p2p_buf_add_intended_addr(struct wpabuf *buf, const u8 *interface_addr);
612 void p2p_buf_add_group_bssid(struct wpabuf *buf, const u8 *bssid);
613 void p2p_buf_add_group_id(struct wpabuf *buf, const u8 *dev_addr,
614 			  const u8 *ssid, size_t ssid_len);
615 void p2p_buf_add_invitation_flags(struct wpabuf *buf, u8 flags);
616 void p2p_buf_add_noa(struct wpabuf *buf, u8 noa_index, u8 opp_ps, u8 ctwindow,
617 		     struct p2p_noa_desc *desc1, struct p2p_noa_desc *desc2);
618 void p2p_buf_add_ext_listen_timing(struct wpabuf *buf, u16 period,
619 				   u16 interval);
620 void p2p_buf_add_p2p_interface(struct wpabuf *buf, struct p2p_data *p2p);
621 void p2p_build_wps_ie(struct p2p_data *p2p, struct wpabuf *buf, int pw_id,
622 		      int all_attr);
623 
624 /* p2p_sd.c */
625 struct p2p_sd_query * p2p_pending_sd_req(struct p2p_data *p2p,
626 					 struct p2p_device *dev);
627 void p2p_free_sd_queries(struct p2p_data *p2p);
628 void p2p_rx_gas_initial_req(struct p2p_data *p2p, const u8 *sa,
629 			    const u8 *data, size_t len, int rx_freq);
630 void p2p_rx_gas_initial_resp(struct p2p_data *p2p, const u8 *sa,
631 			     const u8 *data, size_t len, int rx_freq);
632 void p2p_rx_gas_comeback_req(struct p2p_data *p2p, const u8 *sa,
633 			     const u8 *data, size_t len, int rx_freq);
634 void p2p_rx_gas_comeback_resp(struct p2p_data *p2p, const u8 *sa,
635 			      const u8 *data, size_t len, int rx_freq);
636 int p2p_start_sd(struct p2p_data *p2p, struct p2p_device *dev);
637 
638 /* p2p_go_neg.c */
639 int p2p_peer_channels_check(struct p2p_data *p2p, struct p2p_channels *own,
640 			    struct p2p_device *dev,
641 			    const u8 *channel_list, size_t channel_list_len);
642 void p2p_process_go_neg_req(struct p2p_data *p2p, const u8 *sa,
643 			    const u8 *data, size_t len, int rx_freq);
644 void p2p_process_go_neg_resp(struct p2p_data *p2p, const u8 *sa,
645 			     const u8 *data, size_t len, int rx_freq);
646 void p2p_process_go_neg_conf(struct p2p_data *p2p, const u8 *sa,
647 			     const u8 *data, size_t len);
648 int p2p_connect_send(struct p2p_data *p2p, struct p2p_device *dev);
649 u16 p2p_wps_method_pw_id(enum p2p_wps_method wps_method);
650 void p2p_reselect_channel(struct p2p_data *p2p,
651 			  struct p2p_channels *intersection);
652 
653 /* p2p_pd.c */
654 void p2p_process_prov_disc_req(struct p2p_data *p2p, const u8 *sa,
655 			       const u8 *data, size_t len, int rx_freq);
656 void p2p_process_prov_disc_resp(struct p2p_data *p2p, const u8 *sa,
657 				const u8 *data, size_t len);
658 int p2p_send_prov_disc_req(struct p2p_data *p2p, struct p2p_device *dev,
659 			   int join, int force_freq);
660 void p2p_reset_pending_pd(struct p2p_data *p2p);
661 
662 /* p2p_invitation.c */
663 void p2p_process_invitation_req(struct p2p_data *p2p, const u8 *sa,
664 				const u8 *data, size_t len, int rx_freq);
665 void p2p_process_invitation_resp(struct p2p_data *p2p, const u8 *sa,
666 				 const u8 *data, size_t len);
667 int p2p_invite_send(struct p2p_data *p2p, struct p2p_device *dev,
668 		    const u8 *go_dev_addr);
669 void p2p_invitation_req_cb(struct p2p_data *p2p, int success);
670 void p2p_invitation_resp_cb(struct p2p_data *p2p, int success);
671 
672 /* p2p_dev_disc.c */
673 void p2p_process_dev_disc_req(struct p2p_data *p2p, const u8 *sa,
674 			      const u8 *data, size_t len, int rx_freq);
675 void p2p_dev_disc_req_cb(struct p2p_data *p2p, int success);
676 int p2p_send_dev_disc_req(struct p2p_data *p2p, struct p2p_device *dev);
677 void p2p_dev_disc_resp_cb(struct p2p_data *p2p, int success);
678 void p2p_process_dev_disc_resp(struct p2p_data *p2p, const u8 *sa,
679 			       const u8 *data, size_t len);
680 void p2p_go_disc_req_cb(struct p2p_data *p2p, int success);
681 void p2p_process_go_disc_req(struct p2p_data *p2p, const u8 *da, const u8 *sa,
682 			     const u8 *data, size_t len, int rx_freq);
683 
684 /* p2p.c */
685 void p2p_set_state(struct p2p_data *p2p, int new_state);
686 void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec,
687 		     unsigned int usec);
688 void p2p_clear_timeout(struct p2p_data *p2p);
689 void p2p_continue_find(struct p2p_data *p2p);
690 struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
691 						const u8 *addr,
692 						struct p2p_message *msg);
693 void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
694 		      struct p2p_device *dev, struct p2p_message *msg);
695 int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq,
696 		   unsigned int age_ms, int level, const u8 *ies,
697 		   size_t ies_len, int scan_res);
698 struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr);
699 struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p,
700 					     const u8 *addr);
701 void p2p_go_neg_failed(struct p2p_data *p2p, struct p2p_device *peer,
702 		       int status);
703 void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer);
704 int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps);
705 int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
706 			size_t num_req_dev_type);
707 struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p);
708 void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len);
709 int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
710 		    const u8 *src, const u8 *bssid, const u8 *buf,
711 		    size_t len, unsigned int wait_time);
712 void p2p_stop_listen_for_freq(struct p2p_data *p2p, int freq);
713 
714 #endif /* P2P_I_H */
715