p2p.h revision e0e48dc666fb14a7bb60264ca87463ba7bc1fe0b
1/*
2 * Wi-Fi Direct - 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_H
10#define P2P_H
11
12/**
13 * P2P_MAX_REG_CLASSES - Maximum number of regulatory classes
14 */
15#define P2P_MAX_REG_CLASSES 10
16
17/**
18 * P2P_MAX_REG_CLASS_CHANNELS - Maximum number of channels per regulatory class
19 */
20#define P2P_MAX_REG_CLASS_CHANNELS 20
21
22/**
23 * struct p2p_channels - List of supported channels
24 */
25struct p2p_channels {
26	/**
27	 * struct p2p_reg_class - Supported regulatory class
28	 */
29	struct p2p_reg_class {
30		/**
31		 * reg_class - Regulatory class (IEEE 802.11-2007, Annex J)
32		 */
33		u8 reg_class;
34
35		/**
36		 * channel - Supported channels
37		 */
38		u8 channel[P2P_MAX_REG_CLASS_CHANNELS];
39
40		/**
41		 * channels - Number of channel entries in use
42		 */
43		size_t channels;
44	} reg_class[P2P_MAX_REG_CLASSES];
45
46	/**
47	 * reg_classes - Number of reg_class entries in use
48	 */
49	size_t reg_classes;
50};
51
52enum p2p_wps_method {
53	WPS_NOT_READY, WPS_PIN_DISPLAY, WPS_PIN_KEYPAD, WPS_PBC
54};
55
56/**
57 * struct p2p_go_neg_results - P2P Group Owner Negotiation results
58 */
59struct p2p_go_neg_results {
60	/**
61	 * status - Negotiation result (Status Code)
62	 *
63	 * 0 (P2P_SC_SUCCESS) indicates success. Non-zero values indicate
64	 * failed negotiation.
65	 */
66	int status;
67
68	/**
69	 * role_go - Whether local end is Group Owner
70	 */
71	int role_go;
72
73	/**
74	 * freq - Frequency of the group operational channel in MHz
75	 */
76	int freq;
77
78	int ht40;
79
80	int vht;
81
82	/**
83	 * ssid - SSID of the group
84	 */
85	u8 ssid[32];
86
87	/**
88	 * ssid_len - Length of SSID in octets
89	 */
90	size_t ssid_len;
91
92	/**
93	 * psk - WPA pre-shared key (256 bits) (GO only)
94	 */
95	u8 psk[32];
96
97	/**
98	 * psk_set - Whether PSK field is configured (GO only)
99	 */
100	int psk_set;
101
102	/**
103	 * passphrase - WPA2-Personal passphrase for the group (GO only)
104	 */
105	char passphrase[64];
106
107	/**
108	 * peer_device_addr - P2P Device Address of the peer
109	 */
110	u8 peer_device_addr[ETH_ALEN];
111
112	/**
113	 * peer_interface_addr - P2P Interface Address of the peer
114	 */
115	u8 peer_interface_addr[ETH_ALEN];
116
117	/**
118	 * wps_method - WPS method to be used during provisioning
119	 */
120	enum p2p_wps_method wps_method;
121
122#define P2P_MAX_CHANNELS 50
123
124	/**
125	 * freq_list - Zero-terminated list of possible operational channels
126	 */
127	int freq_list[P2P_MAX_CHANNELS];
128
129	/**
130	 * persistent_group - Whether the group should be made persistent
131	 * 0 = not persistent
132	 * 1 = persistent group without persistent reconnect
133	 * 2 = persistent group with persistent reconnect
134	 */
135	int persistent_group;
136
137	/**
138	 * peer_config_timeout - Peer configuration timeout (in 10 msec units)
139	 */
140	unsigned int peer_config_timeout;
141};
142
143struct p2p_data;
144
145enum p2p_scan_type {
146	P2P_SCAN_SOCIAL,
147	P2P_SCAN_FULL,
148	P2P_SCAN_SOCIAL_PLUS_ONE
149};
150
151#define P2P_MAX_WPS_VENDOR_EXT 10
152
153/**
154 * struct p2p_peer_info - P2P peer information
155 */
156struct p2p_peer_info {
157	/**
158	 * p2p_device_addr - P2P Device Address of the peer
159	 */
160	u8 p2p_device_addr[ETH_ALEN];
161
162	/**
163	 * pri_dev_type - Primary Device Type
164	 */
165	u8 pri_dev_type[8];
166
167	/**
168	 * device_name - Device Name (0..32 octets encoded in UTF-8)
169	 */
170	char device_name[33];
171
172	/**
173	 * manufacturer - Manufacturer (0..64 octets encoded in UTF-8)
174	 */
175	char manufacturer[65];
176
177	/**
178	 * model_name - Model Name (0..32 octets encoded in UTF-8)
179	 */
180	char model_name[33];
181
182	/**
183	 * model_number - Model Number (0..32 octets encoded in UTF-8)
184	 */
185	char model_number[33];
186
187	/**
188	 * serial_number - Serial Number (0..32 octets encoded in UTF-8)
189	 */
190	char serial_number[33];
191
192	/**
193	 * level - Signal level
194	 */
195	int level;
196
197	/**
198	 * config_methods - WPS Configuration Methods
199	 */
200	u16 config_methods;
201
202	/**
203	 * dev_capab - Device Capabilities
204	 */
205	u8 dev_capab;
206
207	/**
208	 * group_capab - Group Capabilities
209	 */
210	u8 group_capab;
211
212	/**
213	 * wps_sec_dev_type_list - WPS secondary device type list
214	 *
215	 * This list includes from 0 to 16 Secondary Device Types as indicated
216	 * by wps_sec_dev_type_list_len (8 * number of types).
217	 */
218	u8 wps_sec_dev_type_list[128];
219
220	/**
221	 * wps_sec_dev_type_list_len - Length of secondary device type list
222	 */
223	size_t wps_sec_dev_type_list_len;
224
225	struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT];
226
227	/**
228	 * wfd_subelems - Wi-Fi Display subelements from WFD IE(s)
229	 */
230	struct wpabuf *wfd_subelems;
231};
232
233enum p2p_prov_disc_status {
234	P2P_PROV_DISC_SUCCESS,
235	P2P_PROV_DISC_TIMEOUT,
236	P2P_PROV_DISC_REJECTED,
237	P2P_PROV_DISC_TIMEOUT_JOIN,
238};
239
240struct p2p_channel {
241	u8 op_class;
242	u8 chan;
243};
244
245/**
246 * struct p2p_config - P2P configuration
247 *
248 * This configuration is provided to the P2P module during initialization with
249 * p2p_init().
250 */
251struct p2p_config {
252	/**
253	 * country - Country code to use in P2P operations
254	 */
255	char country[3];
256
257	/**
258	 * reg_class - Regulatory class for own listen channel
259	 */
260	u8 reg_class;
261
262	/**
263	 * channel - Own listen channel
264	 */
265	u8 channel;
266
267	/**
268	 * Regulatory class for own operational channel
269	 */
270	u8 op_reg_class;
271
272	/**
273	 * op_channel - Own operational channel
274	 */
275	u8 op_channel;
276
277	/**
278	 * cfg_op_channel - Whether op_channel is hardcoded in configuration
279	 */
280	u8 cfg_op_channel;
281
282	/**
283	 * channels - Own supported regulatory classes and channels
284	 *
285	 * List of supposerted channels per regulatory class. The regulatory
286	 * classes are defined in IEEE Std 802.11-2007 Annex J and the
287	 * numbering of the clases depends on the configured country code.
288	 */
289	struct p2p_channels channels;
290
291	/**
292	 * cli_channels - Additional client channels
293	 *
294	 * This list of channels (if any) will be used when advertising local
295	 * channels during GO Negotiation or Invitation for the cases where the
296	 * local end may become the client. This may allow the peer to become a
297	 * GO on additional channels if it supports these options. The main use
298	 * case for this is to include passive-scan channels on devices that may
299	 * not know their current location and have configured most channels to
300	 * not allow initiation of radition (i.e., another device needs to take
301	 * master responsibilities).
302	 */
303	struct p2p_channels cli_channels;
304
305	/**
306	 * num_pref_chan - Number of pref_chan entries
307	 */
308	unsigned int num_pref_chan;
309
310	/**
311	 * pref_chan - Preferred channels for GO Negotiation
312	 */
313	struct p2p_channel *pref_chan;
314
315	/**
316	 * pri_dev_type - Primary Device Type (see WPS)
317	 */
318	u8 pri_dev_type[8];
319
320	/**
321	 * P2P_SEC_DEVICE_TYPES - Maximum number of secondary device types
322	 */
323#define P2P_SEC_DEVICE_TYPES 5
324
325	/**
326	 * sec_dev_type - Optional secondary device types
327	 */
328	u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8];
329
330	/**
331	 * num_sec_dev_types - Number of sec_dev_type entries
332	 */
333	size_t num_sec_dev_types;
334
335	/**
336	 * dev_addr - P2P Device Address
337	 */
338	u8 dev_addr[ETH_ALEN];
339
340	/**
341	 * dev_name - Device Name
342	 */
343	char *dev_name;
344
345	char *manufacturer;
346	char *model_name;
347	char *model_number;
348	char *serial_number;
349
350	u8 uuid[16];
351	u16 config_methods;
352
353	/**
354	 * concurrent_operations - Whether concurrent operations are supported
355	 */
356	int concurrent_operations;
357
358	/**
359	 * max_peers - Maximum number of discovered peers to remember
360	 *
361	 * If more peers are discovered, older entries will be removed to make
362	 * room for the new ones.
363	 */
364	size_t max_peers;
365
366	/**
367	 * p2p_intra_bss - Intra BSS communication is supported
368	 */
369	int p2p_intra_bss;
370
371	/**
372	 * ssid_postfix - Postfix data to add to the SSID
373	 *
374	 * This data will be added to the end of the SSID after the
375	 * DIRECT-<random two octets> prefix.
376	 */
377	u8 ssid_postfix[32 - 9];
378
379	/**
380	 * ssid_postfix_len - Length of the ssid_postfix data
381	 */
382	size_t ssid_postfix_len;
383
384	/**
385	 * max_listen - Maximum listen duration in ms
386	 */
387	unsigned int max_listen;
388
389	/**
390	 * cb_ctx - Context to use with callback functions
391	 */
392	void *cb_ctx;
393
394	/**
395	 * debug_print - Debug print
396	 * @ctx: Callback context from cb_ctx
397	 * @level: Debug verbosity level (MSG_*)
398	 * @msg: Debug message
399	 */
400	void (*debug_print)(void *ctx, int level, const char *msg);
401
402
403	/* Callbacks to request lower layer driver operations */
404
405	/**
406	 * p2p_scan - Request a P2P scan/search
407	 * @ctx: Callback context from cb_ctx
408	 * @type: Scan type
409	 * @freq: Specific frequency (MHz) to scan or 0 for no restriction
410	 * @num_req_dev_types: Number of requested device types
411	 * @req_dev_types: Array containing requested device types
412	 * @dev_id: Device ID to search for or %NULL to find all devices
413	 * @pw_id: Device Password ID
414	 * Returns: 0 on success, -1 on failure
415	 *
416	 * This callback function is used to request a P2P scan or search
417	 * operation to be completed. Type type argument specifies which type
418	 * of scan is to be done. @P2P_SCAN_SOCIAL indicates that only the
419	 * social channels (1, 6, 11) should be scanned. @P2P_SCAN_FULL
420	 * indicates that all channels are to be scanned.
421	 * @P2P_SCAN_SOCIAL_PLUS_ONE request scan of all the social channels
422	 * plus one extra channel specified by freq.
423	 *
424	 * The full scan is used for the initial scan to find group owners from
425	 * all. The other types are used during search phase scan of the social
426	 * channels (with potential variation if the Listen channel of the
427	 * target peer is known or if other channels are scanned in steps).
428	 *
429	 * The scan results are returned after this call by calling
430	 * p2p_scan_res_handler() for each scan result that has a P2P IE and
431	 * then calling p2p_scan_res_handled() to indicate that all scan
432	 * results have been indicated.
433	 */
434	int (*p2p_scan)(void *ctx, enum p2p_scan_type type, int freq,
435			unsigned int num_req_dev_types,
436			const u8 *req_dev_types, const u8 *dev_id, u16 pw_id);
437
438	/**
439	 * send_probe_resp - Transmit a Probe Response frame
440	 * @ctx: Callback context from cb_ctx
441	 * @buf: Probe Response frame (including the header and body)
442	 * Returns: 0 on success, -1 on failure
443	 *
444	 * This function is used to reply to Probe Request frames that were
445	 * indicated with a call to p2p_probe_req_rx(). The response is to be
446	 * sent on the same channel or to be dropped if the driver is not
447	 * anymore listening to Probe Request frames.
448	 *
449	 * Alternatively, the responsibility for building the Probe Response
450	 * frames in Listen state may be in another system component in which
451	 * case this function need to be implemented (i.e., the function
452	 * pointer can be %NULL). The WPS and P2P IEs to be added for Probe
453	 * Response frames in such a case are available from the
454	 * start_listen() callback. It should be noted that the received Probe
455	 * Request frames must be indicated by calling p2p_probe_req_rx() even
456	 * if this send_probe_resp() is not used.
457	 */
458	int (*send_probe_resp)(void *ctx, const struct wpabuf *buf);
459
460	/**
461	 * send_action - Transmit an Action frame
462	 * @ctx: Callback context from cb_ctx
463	 * @freq: Frequency in MHz for the channel on which to transmit
464	 * @dst: Destination MAC address (Address 1)
465	 * @src: Source MAC address (Address 2)
466	 * @bssid: BSSID (Address 3)
467	 * @buf: Frame body (starting from Category field)
468	 * @len: Length of buf in octets
469	 * @wait_time: How many msec to wait for a response frame
470	 * Returns: 0 on success, -1 on failure
471	 *
472	 * The Action frame may not be transmitted immediately and the status
473	 * of the transmission must be reported by calling
474	 * p2p_send_action_cb() once the frame has either been transmitted or
475	 * it has been dropped due to excessive retries or other failure to
476	 * transmit.
477	 */
478	int (*send_action)(void *ctx, unsigned int freq, const u8 *dst,
479			   const u8 *src, const u8 *bssid, const u8 *buf,
480			   size_t len, unsigned int wait_time);
481
482	/**
483	 * send_action_done - Notify that Action frame sequence was completed
484	 * @ctx: Callback context from cb_ctx
485	 *
486	 * This function is called when the Action frame sequence that was
487	 * started with send_action() has been completed, i.e., when there is
488	 * no need to wait for a response from the destination peer anymore.
489	 */
490	void (*send_action_done)(void *ctx);
491
492	/**
493	 * start_listen - Start Listen state
494	 * @ctx: Callback context from cb_ctx
495	 * @freq: Frequency of the listen channel in MHz
496	 * @duration: Duration for the Listen state in milliseconds
497	 * @probe_resp_ie: IE(s) to be added to Probe Response frames
498	 * Returns: 0 on success, -1 on failure
499	 *
500	 * This Listen state may not start immediately since the driver may
501	 * have other pending operations to complete first. Once the Listen
502	 * state has started, p2p_listen_cb() must be called to notify the P2P
503	 * module. Once the Listen state is stopped, p2p_listen_end() must be
504	 * called to notify the P2P module that the driver is not in the Listen
505	 * state anymore.
506	 *
507	 * If the send_probe_resp() is not used for generating the response,
508	 * the IEs from probe_resp_ie need to be added to the end of the Probe
509	 * Response frame body. If send_probe_resp() is used, the probe_resp_ie
510	 * information can be ignored.
511	 */
512	int (*start_listen)(void *ctx, unsigned int freq,
513			    unsigned int duration,
514			    const struct wpabuf *probe_resp_ie);
515	/**
516	 * stop_listen - Stop Listen state
517	 * @ctx: Callback context from cb_ctx
518	 *
519	 * This callback can be used to stop a Listen state operation that was
520	 * previously requested with start_listen().
521	 */
522	void (*stop_listen)(void *ctx);
523
524	/**
525	 * get_noa - Get current Notice of Absence attribute payload
526	 * @ctx: Callback context from cb_ctx
527	 * @interface_addr: P2P Interface Address of the GO
528	 * @buf: Buffer for returning NoA
529	 * @buf_len: Buffer length in octets
530	 * Returns: Number of octets used in buf, 0 to indicate no NoA is being
531	 * advertized, or -1 on failure
532	 *
533	 * This function is used to fetch the current Notice of Absence
534	 * attribute value from GO.
535	 */
536	int (*get_noa)(void *ctx, const u8 *interface_addr, u8 *buf,
537		       size_t buf_len);
538
539	/* Callbacks to notify events to upper layer management entity */
540
541	/**
542	 * dev_found - Notification of a found P2P Device
543	 * @ctx: Callback context from cb_ctx
544	 * @addr: Source address of the message triggering this notification
545	 * @info: P2P peer information
546	 * @new_device: Inform if the peer is newly found
547	 *
548	 * This callback is used to notify that a new P2P Device has been
549	 * found. This may happen, e.g., during Search state based on scan
550	 * results or during Listen state based on receive Probe Request and
551	 * Group Owner Negotiation Request.
552	 */
553	void (*dev_found)(void *ctx, const u8 *addr,
554			  const struct p2p_peer_info *info,
555			  int new_device);
556
557	/**
558	 * dev_lost - Notification of a lost P2P Device
559	 * @ctx: Callback context from cb_ctx
560	 * @dev_addr: P2P Device Address of the lost P2P Device
561	 *
562	 * This callback is used to notify that a P2P Device has been deleted.
563	 */
564	void (*dev_lost)(void *ctx, const u8 *dev_addr);
565
566	/**
567	 * find_stopped - Notification of a p2p_find operation stopping
568	 * @ctx: Callback context from cb_ctx
569	 */
570	void (*find_stopped)(void *ctx);
571
572	/**
573	 * go_neg_req_rx - Notification of a receive GO Negotiation Request
574	 * @ctx: Callback context from cb_ctx
575	 * @src: Source address of the message triggering this notification
576	 * @dev_passwd_id: WPS Device Password ID
577	 *
578	 * This callback is used to notify that a P2P Device is requesting
579	 * group owner negotiation with us, but we do not have all the
580	 * necessary information to start GO Negotiation. This indicates that
581	 * the local user has not authorized the connection yet by providing a
582	 * PIN or PBC button press. This information can be provided with a
583	 * call to p2p_connect().
584	 */
585	void (*go_neg_req_rx)(void *ctx, const u8 *src, u16 dev_passwd_id);
586
587	/**
588	 * go_neg_completed - Notification of GO Negotiation results
589	 * @ctx: Callback context from cb_ctx
590	 * @res: GO Negotiation results
591	 *
592	 * This callback is used to notify that Group Owner Negotiation has
593	 * been completed. Non-zero struct p2p_go_neg_results::status indicates
594	 * failed negotiation. In case of success, this function is responsible
595	 * for creating a new group interface (or using the existing interface
596	 * depending on driver features), setting up the group interface in
597	 * proper mode based on struct p2p_go_neg_results::role_go and
598	 * initializing WPS provisioning either as a Registrar (if GO) or as an
599	 * Enrollee. Successful WPS provisioning must be indicated by calling
600	 * p2p_wps_success_cb(). The callee is responsible for timing out group
601	 * formation if WPS provisioning cannot be completed successfully
602	 * within 15 seconds.
603	 */
604	void (*go_neg_completed)(void *ctx, struct p2p_go_neg_results *res);
605
606	/**
607	 * sd_request - Callback on Service Discovery Request
608	 * @ctx: Callback context from cb_ctx
609	 * @freq: Frequency (in MHz) of the channel
610	 * @sa: Source address of the request
611	 * @dialog_token: Dialog token
612	 * @update_indic: Service Update Indicator from the source of request
613	 * @tlvs: P2P Service Request TLV(s)
614	 * @tlvs_len: Length of tlvs buffer in octets
615	 *
616	 * This callback is used to indicate reception of a service discovery
617	 * request. Response to the query must be indicated by calling
618	 * p2p_sd_response() with the context information from the arguments to
619	 * this callback function.
620	 *
621	 * This callback handler can be set to %NULL to indicate that service
622	 * discovery is not supported.
623	 */
624	void (*sd_request)(void *ctx, int freq, const u8 *sa, u8 dialog_token,
625			   u16 update_indic, const u8 *tlvs, size_t tlvs_len);
626
627	/**
628	 * sd_response - Callback on Service Discovery Response
629	 * @ctx: Callback context from cb_ctx
630	 * @sa: Source address of the request
631	 * @update_indic: Service Update Indicator from the source of response
632	 * @tlvs: P2P Service Response TLV(s)
633	 * @tlvs_len: Length of tlvs buffer in octets
634	 *
635	 * This callback is used to indicate reception of a service discovery
636	 * response. This callback handler can be set to %NULL if no service
637	 * discovery requests are used. The information provided with this call
638	 * is replies to the queries scheduled with p2p_sd_request().
639	 */
640	void (*sd_response)(void *ctx, const u8 *sa, u16 update_indic,
641			    const u8 *tlvs, size_t tlvs_len);
642
643	/**
644	 * prov_disc_req - Callback on Provisiong Discovery Request
645	 * @ctx: Callback context from cb_ctx
646	 * @peer: Source address of the request
647	 * @config_methods: Requested WPS Config Method
648	 * @dev_addr: P2P Device Address of the found P2P Device
649	 * @pri_dev_type: Primary Device Type
650	 * @dev_name: Device Name
651	 * @supp_config_methods: Supported configuration Methods
652	 * @dev_capab: Device Capabilities
653	 * @group_capab: Group Capabilities
654	 * @group_id: P2P Group ID (or %NULL if not included)
655	 * @group_id_len: Length of P2P Group ID
656	 *
657	 * This callback is used to indicate reception of a Provision Discovery
658	 * Request frame that the P2P module accepted.
659	 */
660	void (*prov_disc_req)(void *ctx, const u8 *peer, u16 config_methods,
661			      const u8 *dev_addr, const u8 *pri_dev_type,
662			      const char *dev_name, u16 supp_config_methods,
663			      u8 dev_capab, u8 group_capab,
664			      const u8 *group_id, size_t group_id_len);
665
666	/**
667	 * prov_disc_resp - Callback on Provisiong Discovery Response
668	 * @ctx: Callback context from cb_ctx
669	 * @peer: Source address of the response
670	 * @config_methods: Value from p2p_prov_disc_req() or 0 on failure
671	 *
672	 * This callback is used to indicate reception of a Provision Discovery
673	 * Response frame for a pending request scheduled with
674	 * p2p_prov_disc_req(). This callback handler can be set to %NULL if
675	 * provision discovery is not used.
676	 */
677	void (*prov_disc_resp)(void *ctx, const u8 *peer, u16 config_methods);
678
679	/**
680	 * prov_disc_fail - Callback on Provision Discovery failure
681	 * @ctx: Callback context from cb_ctx
682	 * @peer: Source address of the response
683	 * @status: Cause of failure, will not be %P2P_PROV_DISC_SUCCESS
684	 *
685	 * This callback is used to indicate either a failure or no response
686	 * to an earlier provision discovery request.
687	 *
688	 * This callback handler can be set to %NULL if provision discovery
689	 * is not used or failures do not need to be indicated.
690	 */
691	void (*prov_disc_fail)(void *ctx, const u8 *peer,
692			       enum p2p_prov_disc_status status);
693
694	/**
695	 * invitation_process - Optional callback for processing Invitations
696	 * @ctx: Callback context from cb_ctx
697	 * @sa: Source address of the Invitation Request
698	 * @bssid: P2P Group BSSID from the request or %NULL if not included
699	 * @go_dev_addr: GO Device Address from P2P Group ID
700	 * @ssid: SSID from P2P Group ID
701	 * @ssid_len: Length of ssid buffer in octets
702	 * @go: Variable for returning whether the local end is GO in the group
703	 * @group_bssid: Buffer for returning P2P Group BSSID (if local end GO)
704	 * @force_freq: Variable for returning forced frequency for the group
705	 * @persistent_group: Whether this is an invitation to reinvoke a
706	 *	persistent group (instead of invitation to join an active
707	 *	group)
708	 * @channels: Available operating channels for the group
709	 * Returns: Status code (P2P_SC_*)
710	 *
711	 * This optional callback can be used to implement persistent reconnect
712	 * by allowing automatic restarting of persistent groups without user
713	 * interaction. If this callback is not implemented (i.e., is %NULL),
714	 * the received Invitation Request frames are replied with
715	 * %P2P_SC_REQ_RECEIVED status and indicated to upper layer with the
716	 * invitation_result() callback.
717	 *
718	 * If the requested parameters are acceptable and the group is known,
719	 * %P2P_SC_SUCCESS may be returned. If the requested group is unknown,
720	 * %P2P_SC_FAIL_UNKNOWN_GROUP should be returned. %P2P_SC_REQ_RECEIVED
721	 * can be returned if there is not enough data to provide immediate
722	 * response, i.e., if some sort of user interaction is needed. The
723	 * invitation_received() callback will be called in that case
724	 * immediately after this call.
725	 */
726	u8 (*invitation_process)(void *ctx, const u8 *sa, const u8 *bssid,
727				 const u8 *go_dev_addr, const u8 *ssid,
728				 size_t ssid_len, int *go, u8 *group_bssid,
729				 int *force_freq, int persistent_group,
730				 const struct p2p_channels *channels);
731
732	/**
733	 * invitation_received - Callback on Invitation Request RX
734	 * @ctx: Callback context from cb_ctx
735	 * @sa: Source address of the Invitation Request
736	 * @bssid: P2P Group BSSID or %NULL if not received
737	 * @ssid: SSID of the group
738	 * @ssid_len: Length of ssid in octets
739	 * @go_dev_addr: GO Device Address
740	 * @status: Response Status
741	 * @op_freq: Operational frequency for the group
742	 *
743	 * This callback is used to indicate sending of an Invitation Response
744	 * for a received Invitation Request. If status == 0 (success), the
745	 * upper layer code is responsible for starting the group. status == 1
746	 * indicates need to get user authorization for the group. Other status
747	 * values indicate that the invitation request was rejected.
748	 */
749	void (*invitation_received)(void *ctx, const u8 *sa, const u8 *bssid,
750				    const u8 *ssid, size_t ssid_len,
751				    const u8 *go_dev_addr, u8 status,
752				    int op_freq);
753
754	/**
755	 * invitation_result - Callback on Invitation result
756	 * @ctx: Callback context from cb_ctx
757	 * @status: Negotiation result (Status Code)
758	 * @bssid: P2P Group BSSID or %NULL if not received
759	 * @channels: Available operating channels for the group
760	 * @addr: Peer address
761	 * @freq: Frequency (in MHz) indicated during invitation or 0
762	 *
763	 * This callback is used to indicate result of an Invitation procedure
764	 * started with a call to p2p_invite(). The indicated status code is
765	 * the value received from the peer in Invitation Response with 0
766	 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a
767	 * local failure in transmitting the Invitation Request.
768	 */
769	void (*invitation_result)(void *ctx, int status, const u8 *bssid,
770				  const struct p2p_channels *channels,
771				  const u8 *addr, int freq);
772
773	/**
774	 * go_connected - Check whether we are connected to a GO
775	 * @ctx: Callback context from cb_ctx
776	 * @dev_addr: P2P Device Address of a GO
777	 * Returns: 1 if we are connected as a P2P client to the specified GO
778	 * or 0 if not.
779	 */
780	int (*go_connected)(void *ctx, const u8 *dev_addr);
781};
782
783
784/* P2P module initialization/deinitialization */
785
786/**
787 * p2p_init - Initialize P2P module
788 * @cfg: P2P module configuration
789 * Returns: Pointer to private data or %NULL on failure
790 *
791 * This function is used to initialize global P2P module context (one per
792 * device). The P2P module will keep a copy of the configuration data, so the
793 * caller does not need to maintain this structure. However, the callback
794 * functions and the context parameters to them must be kept available until
795 * the P2P module is deinitialized with p2p_deinit().
796 */
797struct p2p_data * p2p_init(const struct p2p_config *cfg);
798
799/**
800 * p2p_deinit - Deinitialize P2P module
801 * @p2p: P2P module context from p2p_init()
802 */
803void p2p_deinit(struct p2p_data *p2p);
804
805/**
806 * p2p_flush - Flush P2P module state
807 * @p2p: P2P module context from p2p_init()
808 *
809 * This command removes the P2P module state like peer device entries.
810 */
811void p2p_flush(struct p2p_data *p2p);
812
813/**
814 * p2p_unauthorize - Unauthorize the specified peer device
815 * @p2p: P2P module context from p2p_init()
816 * @addr: P2P peer entry to be unauthorized
817 * Returns: 0 on success, -1 on failure
818 *
819 * This command removes any connection authorization from the specified P2P
820 * peer device address. This can be used, e.g., to cancel effect of a previous
821 * p2p_authorize() or p2p_connect() call that has not yet resulted in completed
822 * GO Negotiation.
823 */
824int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr);
825
826/**
827 * p2p_set_dev_name - Set device name
828 * @p2p: P2P module context from p2p_init()
829 * Returns: 0 on success, -1 on failure
830 *
831 * This function can be used to update the P2P module configuration with
832 * information that was not available at the time of the p2p_init() call.
833 */
834int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name);
835
836int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer);
837int p2p_set_model_name(struct p2p_data *p2p, const char *model_name);
838int p2p_set_model_number(struct p2p_data *p2p, const char *model_number);
839int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number);
840
841void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods);
842void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid);
843
844/**
845 * p2p_set_pri_dev_type - Set primary device type
846 * @p2p: P2P module context from p2p_init()
847 * Returns: 0 on success, -1 on failure
848 *
849 * This function can be used to update the P2P module configuration with
850 * information that was not available at the time of the p2p_init() call.
851 */
852int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type);
853
854/**
855 * p2p_set_sec_dev_types - Set secondary device types
856 * @p2p: P2P module context from p2p_init()
857 * Returns: 0 on success, -1 on failure
858 *
859 * This function can be used to update the P2P module configuration with
860 * information that was not available at the time of the p2p_init() call.
861 */
862int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
863			  size_t num_dev_types);
864
865int p2p_set_country(struct p2p_data *p2p, const char *country);
866
867
868/* Commands from upper layer management entity */
869
870enum p2p_discovery_type {
871	P2P_FIND_START_WITH_FULL,
872	P2P_FIND_ONLY_SOCIAL,
873	P2P_FIND_PROGRESSIVE
874};
875
876/**
877 * p2p_find - Start P2P Find (Device Discovery)
878 * @p2p: P2P module context from p2p_init()
879 * @timeout: Timeout for find operation in seconds or 0 for no timeout
880 * @type: Device Discovery type
881 * @num_req_dev_types: Number of requested device types
882 * @req_dev_types: Requested device types array, must be an array
883 *	containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no
884 *	requested device types.
885 * @dev_id: Device ID to search for or %NULL to find all devices
886 * @search_delay: Extra delay in milliseconds between search iterations
887 * Returns: 0 on success, -1 on failure
888 */
889int p2p_find(struct p2p_data *p2p, unsigned int timeout,
890	     enum p2p_discovery_type type,
891	     unsigned int num_req_dev_types, const u8 *req_dev_types,
892	     const u8 *dev_id, unsigned int search_delay);
893
894/**
895 * p2p_stop_find - Stop P2P Find (Device Discovery)
896 * @p2p: P2P module context from p2p_init()
897 */
898void p2p_stop_find(struct p2p_data *p2p);
899
900/**
901 * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq
902 * @p2p: P2P module context from p2p_init()
903 * @freq: Frequency in MHz for next operation
904 *
905 * This is like p2p_stop_find(), but Listen state is not stopped if we are
906 * already on the same frequency.
907 */
908void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq);
909
910/**
911 * p2p_listen - Start P2P Listen state for specified duration
912 * @p2p: P2P module context from p2p_init()
913 * @timeout: Listen state duration in milliseconds
914 * Returns: 0 on success, -1 on failure
915 *
916 * This function can be used to request the P2P module to keep the device
917 * discoverable on the listen channel for an extended set of time. At least in
918 * its current form, this is mainly used for testing purposes and may not be of
919 * much use for normal P2P operations.
920 */
921int p2p_listen(struct p2p_data *p2p, unsigned int timeout);
922
923/**
924 * p2p_stop_listen - Stop P2P Listen
925 * @p2p: P2P module context from p2p_init()
926 */
927void p2p_stop_listen(struct p2p_data *p2p);
928
929/**
930 * p2p_connect - Start P2P group formation (GO negotiation)
931 * @p2p: P2P module context from p2p_init()
932 * @peer_addr: MAC address of the peer P2P client
933 * @wps_method: WPS method to be used in provisioning
934 * @go_intent: Local GO intent value (1..15)
935 * @own_interface_addr: Intended interface address to use with the group
936 * @force_freq: The only allowed channel frequency in MHz or 0
937 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
938 * persistent group without persistent reconnect, 2 = persistent group with
939 * persistent reconnect)
940 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
941 *	a new SSID
942 * @force_ssid_len: Length of $force_ssid buffer
943 * @pd_before_go_neg: Whether to send Provision Discovery prior to GO
944 *	Negotiation as an interoperability workaround when initiating group
945 *	formation
946 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if
947 *	force_freq == 0)
948 * Returns: 0 on success, -1 on failure
949 */
950int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
951		enum p2p_wps_method wps_method,
952		int go_intent, const u8 *own_interface_addr,
953		unsigned int force_freq, int persistent_group,
954		const u8 *force_ssid, size_t force_ssid_len,
955		int pd_before_go_neg, unsigned int pref_freq);
956
957/**
958 * p2p_authorize - Authorize P2P group formation (GO negotiation)
959 * @p2p: P2P module context from p2p_init()
960 * @peer_addr: MAC address of the peer P2P client
961 * @wps_method: WPS method to be used in provisioning
962 * @go_intent: Local GO intent value (1..15)
963 * @own_interface_addr: Intended interface address to use with the group
964 * @force_freq: The only allowed channel frequency in MHz or 0
965 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
966 * persistent group without persistent reconnect, 2 = persistent group with
967 * persistent reconnect)
968 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
969 *	a new SSID
970 * @force_ssid_len: Length of $force_ssid buffer
971 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if
972 *	force_freq == 0)
973 * Returns: 0 on success, -1 on failure
974 *
975 * This is like p2p_connect(), but the actual group negotiation is not
976 * initiated automatically, i.e., the other end is expected to do that.
977 */
978int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
979		  enum p2p_wps_method wps_method,
980		  int go_intent, const u8 *own_interface_addr,
981		  unsigned int force_freq, int persistent_group,
982		  const u8 *force_ssid, size_t force_ssid_len,
983		  unsigned int pref_freq);
984
985/**
986 * p2p_reject - Reject peer device (explicitly block connection attempts)
987 * @p2p: P2P module context from p2p_init()
988 * @peer_addr: MAC address of the peer P2P client
989 * Returns: 0 on success, -1 on failure
990 */
991int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr);
992
993/**
994 * p2p_prov_disc_req - Send Provision Discovery Request
995 * @p2p: P2P module context from p2p_init()
996 * @peer_addr: MAC address of the peer P2P client
997 * @config_methods: WPS Config Methods value (only one bit set)
998 * @join: Whether this is used by a client joining an active group
999 * @force_freq: Forced TX frequency for the frame (mainly for the join case)
1000 * @user_initiated_pd: Flag to indicate if initiated by user or not
1001 * Returns: 0 on success, -1 on failure
1002 *
1003 * This function can be used to request a discovered P2P peer to display a PIN
1004 * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us
1005 * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame
1006 * is transmitted once immediately and if no response is received, the frame
1007 * will be sent again whenever the target device is discovered during device
1008 * dsicovery (start with a p2p_find() call). Response from the peer is
1009 * indicated with the p2p_config::prov_disc_resp() callback.
1010 */
1011int p2p_prov_disc_req(struct p2p_data *p2p, const u8 *peer_addr,
1012		      u16 config_methods, int join, int force_freq,
1013		      int user_initiated_pd);
1014
1015/**
1016 * p2p_sd_request - Schedule a service discovery query
1017 * @p2p: P2P module context from p2p_init()
1018 * @dst: Destination peer or %NULL to apply for all peers
1019 * @tlvs: P2P Service Query TLV(s)
1020 * Returns: Reference to the query or %NULL on failure
1021 *
1022 * Response to the query is indicated with the p2p_config::sd_response()
1023 * callback.
1024 */
1025void * p2p_sd_request(struct p2p_data *p2p, const u8 *dst,
1026		      const struct wpabuf *tlvs);
1027
1028#ifdef CONFIG_WIFI_DISPLAY
1029void * p2p_sd_request_wfd(struct p2p_data *p2p, const u8 *dst,
1030			  const struct wpabuf *tlvs);
1031#endif /* CONFIG_WIFI_DISPLAY */
1032
1033/**
1034 * p2p_sd_cancel_request - Cancel a pending service discovery query
1035 * @p2p: P2P module context from p2p_init()
1036 * @req: Query reference from p2p_sd_request()
1037 * Returns: 0 if request for cancelled; -1 if not found
1038 */
1039int p2p_sd_cancel_request(struct p2p_data *p2p, void *req);
1040
1041/**
1042 * p2p_sd_response - Send response to a service discovery query
1043 * @p2p: P2P module context from p2p_init()
1044 * @freq: Frequency from p2p_config::sd_request() callback
1045 * @dst: Destination address from p2p_config::sd_request() callback
1046 * @dialog_token: Dialog token from p2p_config::sd_request() callback
1047 * @resp_tlvs: P2P Service Response TLV(s)
1048 *
1049 * This function is called as a response to the request indicated with
1050 * p2p_config::sd_request() callback.
1051 */
1052void p2p_sd_response(struct p2p_data *p2p, int freq, const u8 *dst,
1053		     u8 dialog_token, const struct wpabuf *resp_tlvs);
1054
1055/**
1056 * p2p_sd_service_update - Indicate a change in local services
1057 * @p2p: P2P module context from p2p_init()
1058 *
1059 * This function needs to be called whenever there is a change in availability
1060 * of the local services. This will increment the Service Update Indicator
1061 * value which will be used in SD Request and Response frames.
1062 */
1063void p2p_sd_service_update(struct p2p_data *p2p);
1064
1065
1066enum p2p_invite_role {
1067	P2P_INVITE_ROLE_GO,
1068	P2P_INVITE_ROLE_ACTIVE_GO,
1069	P2P_INVITE_ROLE_CLIENT
1070};
1071
1072/**
1073 * p2p_invite - Invite a P2P Device into a group
1074 * @p2p: P2P module context from p2p_init()
1075 * @peer: Device Address of the peer P2P Device
1076 * @role: Local role in the group
1077 * @bssid: Group BSSID or %NULL if not known
1078 * @ssid: Group SSID
1079 * @ssid_len: Length of ssid in octets
1080 * @force_freq: The only allowed channel frequency in MHz or 0
1081 * @go_dev_addr: Forced GO Device Address or %NULL if none
1082 * @persistent_group: Whether this is to reinvoke a persistent group
1083 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if
1084 *	force_freq == 0)
1085 * Returns: 0 on success, -1 on failure
1086 */
1087int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role,
1088	       const u8 *bssid, const u8 *ssid, size_t ssid_len,
1089	       unsigned int force_freq, const u8 *go_dev_addr,
1090	       int persistent_group, unsigned int pref_freq);
1091
1092/**
1093 * p2p_presence_req - Request GO presence
1094 * @p2p: P2P module context from p2p_init()
1095 * @go_interface_addr: GO P2P Interface Address
1096 * @own_interface_addr: Own P2P Interface Address for this group
1097 * @freq: Group operating frequence (in MHz)
1098 * @duration1: Preferred presence duration in microseconds
1099 * @interval1: Preferred presence interval in microseconds
1100 * @duration2: Acceptable presence duration in microseconds
1101 * @interval2: Acceptable presence interval in microseconds
1102 * Returns: 0 on success, -1 on failure
1103 *
1104 * If both duration and interval values are zero, the parameter pair is not
1105 * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0).
1106 */
1107int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
1108		     const u8 *own_interface_addr, unsigned int freq,
1109		     u32 duration1, u32 interval1, u32 duration2,
1110		     u32 interval2);
1111
1112/**
1113 * p2p_ext_listen - Set Extended Listen Timing
1114 * @p2p: P2P module context from p2p_init()
1115 * @freq: Group operating frequence (in MHz)
1116 * @period: Availability period in milliseconds (1-65535; 0 to disable)
1117 * @interval: Availability interval in milliseconds (1-65535; 0 to disable)
1118 * Returns: 0 on success, -1 on failure
1119 *
1120 * This function can be used to enable or disable (period = interval = 0)
1121 * Extended Listen Timing. When enabled, the P2P Device will become
1122 * discoverable (go into Listen State) every @interval milliseconds for at
1123 * least @period milliseconds.
1124 */
1125int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
1126		   unsigned int interval);
1127
1128/* Event notifications from upper layer management operations */
1129
1130/**
1131 * p2p_wps_success_cb - Report successfully completed WPS provisioning
1132 * @p2p: P2P module context from p2p_init()
1133 * @mac_addr: Peer address
1134 *
1135 * This function is used to report successfully completed WPS provisioning
1136 * during group formation in both GO/Registrar and client/Enrollee roles.
1137 */
1138void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr);
1139
1140/**
1141 * p2p_group_formation_failed - Report failed WPS provisioning
1142 * @p2p: P2P module context from p2p_init()
1143 *
1144 * This function is used to report failed group formation. This can happen
1145 * either due to failed WPS provisioning or due to 15 second timeout during
1146 * the provisioning phase.
1147 */
1148void p2p_group_formation_failed(struct p2p_data *p2p);
1149
1150/**
1151 * p2p_get_provisioning_info - Get any stored provisioning info
1152 * @p2p: P2P module context from p2p_init()
1153 * @addr: Peer P2P Device Address
1154 * Returns: WPS provisioning information (WPS config method) or 0 if no
1155 * information is available
1156 *
1157 * This function is used to retrieve stored WPS provisioning info for the given
1158 * peer.
1159 */
1160u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr);
1161
1162/**
1163 * p2p_clear_provisioning_info - Clear any stored provisioning info
1164 * @p2p: P2P module context from p2p_init()
1165 * @iface_addr: Peer P2P Device Address
1166 *
1167 * This function is used to clear stored WPS provisioning info for the given
1168 * peer.
1169 */
1170void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr);
1171
1172
1173/* Event notifications from lower layer driver operations */
1174
1175/**
1176 * enum p2p_probe_req_status
1177 *
1178 * @P2P_PREQ_MALFORMED: frame was not well-formed
1179 * @P2P_PREQ_NOT_LISTEN: device isn't in listen state, frame ignored
1180 * @P2P_PREQ_NOT_P2P: frame was not a P2P probe request
1181 * @P2P_PREQ_P2P_NOT_PROCESSED: frame was P2P but wasn't processed
1182 * @P2P_PREQ_P2P_PROCESSED: frame has been processed by P2P
1183 */
1184enum p2p_probe_req_status {
1185	P2P_PREQ_MALFORMED,
1186	P2P_PREQ_NOT_LISTEN,
1187	P2P_PREQ_NOT_P2P,
1188	P2P_PREQ_NOT_PROCESSED,
1189	P2P_PREQ_PROCESSED
1190};
1191
1192/**
1193 * p2p_probe_req_rx - Report reception of a Probe Request frame
1194 * @p2p: P2P module context from p2p_init()
1195 * @addr: Source MAC address
1196 * @dst: Destination MAC address if available or %NULL
1197 * @bssid: BSSID if available or %NULL
1198 * @ie: Information elements from the Probe Request frame body
1199 * @ie_len: Length of ie buffer in octets
1200 * Returns: value indicating the type and status of the probe request
1201 */
1202enum p2p_probe_req_status
1203p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
1204		 const u8 *bssid, const u8 *ie, size_t ie_len);
1205
1206/**
1207 * p2p_rx_action - Report received Action frame
1208 * @p2p: P2P module context from p2p_init()
1209 * @da: Destination address of the received Action frame
1210 * @sa: Source address of the received Action frame
1211 * @bssid: Address 3 of the received Action frame
1212 * @category: Category of the received Action frame
1213 * @data: Action frame body after the Category field
1214 * @len: Length of the data buffer in octets
1215 * @freq: Frequency (in MHz) on which the frame was received
1216 */
1217void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1218		   const u8 *bssid, u8 category,
1219		   const u8 *data, size_t len, int freq);
1220
1221/**
1222 * p2p_scan_res_handler - Indicate a P2P scan results
1223 * @p2p: P2P module context from p2p_init()
1224 * @bssid: BSSID of the scan result
1225 * @freq: Frequency of the channel on which the device was found in MHz
1226 * @rx_time: Time when the result was received
1227 * @level: Signal level (signal strength of the received Beacon/Probe Response
1228 *	frame)
1229 * @ies: Pointer to IEs from the scan result
1230 * @ies_len: Length of the ies buffer
1231 * Returns: 0 to continue or 1 to stop scan result indication
1232 *
1233 * This function is called to indicate a scan result entry with P2P IE from a
1234 * scan requested with struct p2p_config::p2p_scan(). This can be called during
1235 * the actual scan process (i.e., whenever a new device is found) or as a
1236 * sequence of calls after the full scan has been completed. The former option
1237 * can result in optimized operations, but may not be supported by all
1238 * driver/firmware designs. The ies buffer need to include at least the P2P IE,
1239 * but it is recommended to include all IEs received from the device. The
1240 * caller does not need to check that the IEs contain a P2P IE before calling
1241 * this function since frames will be filtered internally if needed.
1242 *
1243 * This function will return 1 if it wants to stop scan result iteration (and
1244 * scan in general if it is still in progress). This is used to allow faster
1245 * start of a pending operation, e.g., to start a pending GO negotiation.
1246 */
1247int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
1248			 struct os_time *rx_time, int level, const u8 *ies,
1249			 size_t ies_len);
1250
1251/**
1252 * p2p_scan_res_handled - Indicate end of scan results
1253 * @p2p: P2P module context from p2p_init()
1254 *
1255 * This function is called to indicate that all P2P scan results from a scan
1256 * have been reported with zero or more calls to p2p_scan_res_handler(). This
1257 * function must be called as a response to successful
1258 * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler()
1259 * calls stopped iteration.
1260 */
1261void p2p_scan_res_handled(struct p2p_data *p2p);
1262
1263enum p2p_send_action_result {
1264	P2P_SEND_ACTION_SUCCESS /* Frame was send and acknowledged */,
1265	P2P_SEND_ACTION_NO_ACK /* Frame was sent, but not acknowledged */,
1266	P2P_SEND_ACTION_FAILED /* Frame was not sent due to a failure */
1267};
1268
1269/**
1270 * p2p_send_action_cb - Notify TX status of an Action frame
1271 * @p2p: P2P module context from p2p_init()
1272 * @freq: Channel frequency in MHz
1273 * @dst: Destination MAC address (Address 1)
1274 * @src: Source MAC address (Address 2)
1275 * @bssid: BSSID (Address 3)
1276 * @result: Result of the transmission attempt
1277 *
1278 * This function is used to indicate the result of an Action frame transmission
1279 * that was requested with struct p2p_config::send_action() callback.
1280 */
1281void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
1282			const u8 *src, const u8 *bssid,
1283			enum p2p_send_action_result result);
1284
1285/**
1286 * p2p_listen_cb - Indicate the start of a requested Listen state
1287 * @p2p: P2P module context from p2p_init()
1288 * @freq: Listen channel frequency in MHz
1289 * @duration: Duration for the Listen state in milliseconds
1290 *
1291 * This function is used to indicate that a Listen state requested with
1292 * struct p2p_config::start_listen() callback has started.
1293 */
1294void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
1295		   unsigned int duration);
1296
1297/**
1298 * p2p_listen_end - Indicate the end of a requested Listen state
1299 * @p2p: P2P module context from p2p_init()
1300 * @freq: Listen channel frequency in MHz
1301 * Returns: 0 if no operations were started, 1 if an operation was started
1302 *
1303 * This function is used to indicate that a Listen state requested with
1304 * struct p2p_config::start_listen() callback has ended.
1305 */
1306int p2p_listen_end(struct p2p_data *p2p, unsigned int freq);
1307
1308void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
1309		      const u8 *ie, size_t ie_len);
1310
1311void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
1312			const u8 *ie, size_t ie_len);
1313
1314
1315/* Per-group P2P state for GO */
1316
1317struct p2p_group;
1318
1319/**
1320 * struct p2p_group_config - P2P group configuration
1321 *
1322 * This configuration is provided to the P2P module during initialization of
1323 * the per-group information with p2p_group_init().
1324 */
1325struct p2p_group_config {
1326	/**
1327	 * persistent_group - Whether the group is persistent
1328	 * 0 = not a persistent group
1329	 * 1 = persistent group without persistent reconnect
1330	 * 2 = persistent group with persistent reconnect
1331	 */
1332	int persistent_group;
1333
1334	/**
1335	 * interface_addr - P2P Interface Address of the group
1336	 */
1337	u8 interface_addr[ETH_ALEN];
1338
1339	/**
1340	 * max_clients - Maximum number of clients in the group
1341	 */
1342	unsigned int max_clients;
1343
1344	/**
1345	 * ssid - Group SSID
1346	 */
1347	u8 ssid[32];
1348
1349	/**
1350	 * ssid_len - Length of SSID
1351	 */
1352	size_t ssid_len;
1353
1354	/**
1355	 * cb_ctx - Context to use with callback functions
1356	 */
1357	void *cb_ctx;
1358
1359	/**
1360	 * ie_update - Notification of IE update
1361	 * @ctx: Callback context from cb_ctx
1362	 * @beacon_ies: P2P IE for Beacon frames or %NULL if no change
1363	 * @proberesp_ies: P2P Ie for Probe Response frames
1364	 *
1365	 * P2P module uses this callback function to notify whenever the P2P IE
1366	 * in Beacon or Probe Response frames should be updated based on group
1367	 * events.
1368	 *
1369	 * The callee is responsible for freeing the returned buffer(s) with
1370	 * wpabuf_free().
1371	 */
1372	void (*ie_update)(void *ctx, struct wpabuf *beacon_ies,
1373			  struct wpabuf *proberesp_ies);
1374
1375	/**
1376	 * idle_update - Notification of changes in group idle state
1377	 * @ctx: Callback context from cb_ctx
1378	 * @idle: Whether the group is idle (no associated stations)
1379	 */
1380	void (*idle_update)(void *ctx, int idle);
1381};
1382
1383/**
1384 * p2p_group_init - Initialize P2P group
1385 * @p2p: P2P module context from p2p_init()
1386 * @config: P2P group configuration (will be freed by p2p_group_deinit())
1387 * Returns: Pointer to private data or %NULL on failure
1388 *
1389 * This function is used to initialize per-group P2P module context. Currently,
1390 * this is only used to manage GO functionality and P2P clients do not need to
1391 * create an instance of this per-group information.
1392 */
1393struct p2p_group * p2p_group_init(struct p2p_data *p2p,
1394				  struct p2p_group_config *config);
1395
1396/**
1397 * p2p_group_deinit - Deinitialize P2P group
1398 * @group: P2P group context from p2p_group_init()
1399 */
1400void p2p_group_deinit(struct p2p_group *group);
1401
1402/**
1403 * p2p_group_notif_assoc - Notification of P2P client association with GO
1404 * @group: P2P group context from p2p_group_init()
1405 * @addr: Interface address of the P2P client
1406 * @ie: IEs from the (Re)association Request frame
1407 * @len: Length of the ie buffer in octets
1408 * Returns: 0 on success, -1 on failure
1409 */
1410int p2p_group_notif_assoc(struct p2p_group *group, const u8 *addr,
1411			  const u8 *ie, size_t len);
1412
1413/**
1414 * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response
1415 * @group: P2P group context from p2p_group_init()
1416 * @status: Status value (P2P_SC_SUCCESS if association succeeded)
1417 * Returns: P2P IE for (Re)association Response or %NULL on failure
1418 *
1419 * The caller is responsible for freeing the returned buffer with
1420 * wpabuf_free().
1421 */
1422struct wpabuf * p2p_group_assoc_resp_ie(struct p2p_group *group, u8 status);
1423
1424/**
1425 * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO
1426 * @group: P2P group context from p2p_group_init()
1427 * @addr: Interface address of the P2P client
1428 */
1429void p2p_group_notif_disassoc(struct p2p_group *group, const u8 *addr);
1430
1431/**
1432 * p2p_group_notif_formation_done - Notification of completed group formation
1433 * @group: P2P group context from p2p_group_init()
1434 */
1435void p2p_group_notif_formation_done(struct p2p_group *group);
1436
1437/**
1438 * p2p_group_notif_noa - Notification of NoA change
1439 * @group: P2P group context from p2p_group_init()
1440 * @noa: Notice of Absence attribute payload, %NULL if none
1441 * @noa_len: Length of noa buffer in octets
1442 * Returns: 0 on success, -1 on failure
1443 *
1444 * Notify the P2P group management about a new NoA contents. This will be
1445 * inserted into the P2P IEs in Beacon and Probe Response frames with rest of
1446 * the group information.
1447 */
1448int p2p_group_notif_noa(struct p2p_group *group, const u8 *noa,
1449			size_t noa_len);
1450
1451/**
1452 * p2p_group_match_dev_type - Match device types in group with requested type
1453 * @group: P2P group context from p2p_group_init()
1454 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1455 * Returns: 1 on match, 0 on mismatch
1456 *
1457 * This function can be used to match the Requested Device Type attribute in
1458 * WPS IE with the device types of a group member for deciding whether a GO
1459 * should reply to a Probe Request frame. Match will be reported if the WPS IE
1460 * is not requested any specific device type.
1461 */
1462int p2p_group_match_dev_type(struct p2p_group *group, struct wpabuf *wps);
1463
1464/**
1465 * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id
1466 */
1467int p2p_group_match_dev_id(struct p2p_group *group, struct wpabuf *p2p);
1468
1469/**
1470 * p2p_group_go_discover - Send GO Discoverability Request to a group client
1471 * @group: P2P group context from p2p_group_init()
1472 * Returns: 0 on success (frame scheduled); -1 if client was not found
1473 */
1474int p2p_group_go_discover(struct p2p_group *group, const u8 *dev_id,
1475			  const u8 *searching_dev, int rx_freq);
1476
1477
1478/* Generic helper functions */
1479
1480/**
1481 * p2p_ie_text - Build text format description of P2P IE
1482 * @p2p_ie: P2P IE
1483 * @buf: Buffer for returning text
1484 * @end: Pointer to the end of the buf area
1485 * Returns: Number of octets written to the buffer or -1 on failure
1486 *
1487 * This function can be used to parse P2P IE contents into text format
1488 * field=value lines.
1489 */
1490int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end);
1491
1492/**
1493 * p2p_scan_result_text - Build text format description of P2P IE
1494 * @ies: Information elements from scan results
1495 * @ies_len: ies buffer length in octets
1496 * @buf: Buffer for returning text
1497 * @end: Pointer to the end of the buf area
1498 * Returns: Number of octets written to the buffer or -1 on failure
1499 *
1500 * This function can be used to parse P2P IE contents into text format
1501 * field=value lines.
1502 */
1503int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end);
1504
1505/**
1506 * p2p_parse_dev_addr_in_p2p_ie - Parse P2P Device Address from a concatenated
1507 * P2P IE
1508 * @p2p_ie: P2P IE
1509 * @dev_addr: Buffer for returning P2P Device Address
1510 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1511 */
1512int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr);
1513
1514/**
1515 * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s)
1516 * @ies: Information elements from scan results
1517 * @ies_len: ies buffer length in octets
1518 * @dev_addr: Buffer for returning P2P Device Address
1519 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1520 */
1521int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr);
1522
1523/**
1524 * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame
1525 * @p2p: P2P module context from p2p_init()
1526 * @bssid: BSSID
1527 * @buf: Buffer for writing the P2P IE
1528 * @len: Maximum buf length in octets
1529 * @p2p_group: Whether this is for association with a P2P GO
1530 * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none
1531 * Returns: Number of octets written into buf or -1 on failure
1532 */
1533int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
1534		     size_t len, int p2p_group, struct wpabuf *p2p_ie);
1535
1536/**
1537 * p2p_scan_ie - Build P2P IE for Probe Request
1538 * @p2p: P2P module context from p2p_init()
1539 * @ies: Buffer for writing P2P IE
1540 * @dev_id: Device ID to search for or %NULL for any
1541 */
1542void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id);
1543
1544/**
1545 * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie
1546 * @p2p: P2P module context from p2p_init()
1547 * Returns: Number of octets that p2p_scan_ie() may add to the buffer
1548 */
1549size_t p2p_scan_ie_buf_len(struct p2p_data *p2p);
1550
1551/**
1552 * p2p_go_params - Generate random P2P group parameters
1553 * @p2p: P2P module context from p2p_init()
1554 * @params: Buffer for parameters
1555 * Returns: 0 on success, -1 on failure
1556 */
1557int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params);
1558
1559/**
1560 * p2p_get_group_capab - Get Group Capability from P2P IE data
1561 * @p2p_ie: P2P IE(s) contents
1562 * Returns: Group Capability
1563 */
1564u8 p2p_get_group_capab(const struct wpabuf *p2p_ie);
1565
1566/**
1567 * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection
1568 * @p2p_ie: P2P IE(s) contents
1569 * Returns: 0 if cross connection is allow, 1 if not
1570 */
1571int p2p_get_cross_connect_disallowed(const struct wpabuf *p2p_ie);
1572
1573/**
1574 * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data
1575 * @p2p_ie: P2P IE(s) contents
1576 * Returns: Pointer to P2P Device Address or %NULL if not included
1577 */
1578const u8 * p2p_get_go_dev_addr(const struct wpabuf *p2p_ie);
1579
1580/**
1581 * p2p_get_peer_info - Get P2P peer information
1582 * @p2p: P2P module context from p2p_init()
1583 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1584 * @next: Whether to select the peer entry following the one indicated by addr
1585 * Returns: Pointer to peer info or %NULL if not found
1586 */
1587const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
1588					       const u8 *addr, int next);
1589
1590/**
1591 * p2p_get_peer_info_txt - Get internal P2P peer information in text format
1592 * @info: Pointer to P2P peer info from p2p_get_peer_info()
1593 * @buf: Buffer for returning text
1594 * @buflen: Maximum buffer length
1595 * Returns: Number of octets written to the buffer or -1 on failure
1596 *
1597 * Note: This information is internal to the P2P module and subject to change.
1598 * As such, this should not really be used by external programs for purposes
1599 * other than debugging.
1600 */
1601int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
1602			  char *buf, size_t buflen);
1603
1604/**
1605 * p2p_peer_known - Check whether P2P peer is known
1606 * @p2p: P2P module context from p2p_init()
1607 * @addr: P2P Device Address of the peer
1608 * Returns: 1 if the specified device is in the P2P peer table or 0 if not
1609 */
1610int p2p_peer_known(struct p2p_data *p2p, const u8 *addr);
1611
1612/**
1613 * p2p_set_client_discoverability - Set client discoverability capability
1614 * @p2p: P2P module context from p2p_init()
1615 * @enabled: Whether client discoverability will be enabled
1616 *
1617 * This function can be used to disable (and re-enable) client discoverability.
1618 * This capability is enabled by default and should not be disabled in normal
1619 * use cases, i.e., this is mainly for testing purposes.
1620 */
1621void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled);
1622
1623/**
1624 * p2p_set_managed_oper - Set managed P2P Device operations capability
1625 * @p2p: P2P module context from p2p_init()
1626 * @enabled: Whether managed P2P Device operations will be enabled
1627 */
1628void p2p_set_managed_oper(struct p2p_data *p2p, int enabled);
1629
1630int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel);
1631
1632int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len);
1633
1634int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
1635			   u8 *iface_addr);
1636int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
1637			   u8 *dev_addr);
1638
1639void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr);
1640
1641/**
1642 * p2p_set_cross_connect - Set cross connection capability
1643 * @p2p: P2P module context from p2p_init()
1644 * @enabled: Whether cross connection will be enabled
1645 */
1646void p2p_set_cross_connect(struct p2p_data *p2p, int enabled);
1647
1648int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr);
1649
1650/**
1651 * p2p_set_intra_bss_dist - Set intra BSS distribution
1652 * @p2p: P2P module context from p2p_init()
1653 * @enabled: Whether intra BSS distribution will be enabled
1654 */
1655void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled);
1656
1657int p2p_channels_includes_freq(const struct p2p_channels *channels,
1658			       unsigned int freq);
1659
1660/**
1661 * p2p_supported_freq - Check whether channel is supported for P2P
1662 * @p2p: P2P module context from p2p_init()
1663 * @freq: Channel frequency in MHz
1664 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
1665 */
1666int p2p_supported_freq(struct p2p_data *p2p, unsigned int freq);
1667
1668/**
1669 * p2p_supported_freq_go - Check whether channel is supported for P2P GO operation
1670 * @p2p: P2P module context from p2p_init()
1671 * @freq: Channel frequency in MHz
1672 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
1673 */
1674int p2p_supported_freq_go(struct p2p_data *p2p, unsigned int freq);
1675
1676/**
1677 * p2p_supported_freq_cli - Check whether channel is supported for P2P client operation
1678 * @p2p: P2P module context from p2p_init()
1679 * @freq: Channel frequency in MHz
1680 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
1681 */
1682int p2p_supported_freq_cli(struct p2p_data *p2p, unsigned int freq);
1683
1684/**
1685 * p2p_get_pref_freq - Get channel from preferred channel list
1686 * @p2p: P2P module context from p2p_init()
1687 * @channels: List of channels
1688 * Returns: Preferred channel
1689 */
1690unsigned int p2p_get_pref_freq(struct p2p_data *p2p,
1691			       const struct p2p_channels *channels);
1692
1693void p2p_update_channel_list(struct p2p_data *p2p,
1694			     const struct p2p_channels *chan,
1695			     const struct p2p_channels *cli_chan);
1696
1697/**
1698 * p2p_set_best_channels - Update best channel information
1699 * @p2p: P2P module context from p2p_init()
1700 * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band
1701 * @freq_5: Frequency (MHz) of best channel in 5 GHz band
1702 * @freq_overall: Frequency (MHz) of best channel overall
1703 */
1704void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
1705			   int freq_overall);
1706
1707/**
1708 * p2p_set_own_freq_preference - Set own preference for channel
1709 * @p2p: P2P module context from p2p_init()
1710 * @freq: Frequency (MHz) of the preferred channel or 0 if no preference
1711 *
1712 * This function can be used to set a preference on the operating channel based
1713 * on frequencies used on the other virtual interfaces that share the same
1714 * radio. If non-zero, this is used to try to avoid multi-channel concurrency.
1715 */
1716void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq);
1717
1718const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p);
1719
1720/**
1721 * p2p_get_group_num_members - Get number of members in group
1722 * @group: P2P group context from p2p_group_init()
1723 * Returns: Number of members in the group
1724 */
1725unsigned int p2p_get_group_num_members(struct p2p_group *group);
1726
1727/**
1728 * p2p_iterate_group_members - Iterate group members
1729 * @group: P2P group context from p2p_group_init()
1730 * @next: iteration pointer, must be a pointer to a void * that is set to %NULL
1731 *	on the first call and not modified later
1732 * Returns: A P2P Interface Address for each call and %NULL for no more members
1733 */
1734const u8 * p2p_iterate_group_members(struct p2p_group *group, void **next);
1735
1736/**
1737 * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group
1738 * @group: P2P group context from p2p_group_init()
1739 * @addr: P2P Interface Address of the client
1740 * Returns: P2P Device Address of the client if found or %NULL if no match
1741 * found
1742 */
1743const u8 * p2p_group_get_dev_addr(struct p2p_group *group, const u8 *addr);
1744
1745/**
1746 * p2p_group_is_client_connected - Check whether a specific client is connected
1747 * @group: P2P group context from p2p_group_init()
1748 * @addr: P2P Device Address of the client
1749 * Returns: 1 if client is connected or 0 if not
1750 */
1751int p2p_group_is_client_connected(struct p2p_group *group, const u8 *dev_addr);
1752
1753/**
1754 * p2p_get_peer_found - Get P2P peer info structure of a found peer
1755 * @p2p: P2P module context from p2p_init()
1756 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1757 * @next: Whether to select the peer entry following the one indicated by addr
1758 * Returns: The first P2P peer info available or %NULL if no such peer exists
1759 */
1760const struct p2p_peer_info *
1761p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next);
1762
1763/**
1764 * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions
1765 * @p2p: P2P module context from p2p_init()
1766 */
1767void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p);
1768
1769/**
1770 * p2p_add_wps_vendor_extension - Add a WPS vendor extension
1771 * @p2p: P2P module context from p2p_init()
1772 * @vendor_ext: The vendor extensions to add
1773 * Returns: 0 on success, -1 on failure
1774 *
1775 * The wpabuf structures in the array are owned by the P2P
1776 * module after this call.
1777 */
1778int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
1779				 const struct wpabuf *vendor_ext);
1780
1781/**
1782 * p2p_set_oper_channel - Set the P2P operating channel
1783 * @p2p: P2P module context from p2p_init()
1784 * @op_reg_class: Operating regulatory class to set
1785 * @op_channel: operating channel to set
1786 * @cfg_op_channel : Whether op_channel is hardcoded in configuration
1787 * Returns: 0 on success, -1 on failure
1788 */
1789int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
1790			 int cfg_op_channel);
1791
1792/**
1793 * p2p_set_pref_chan - Set P2P preferred channel list
1794 * @p2p: P2P module context from p2p_init()
1795 * @num_pref_chan: Number of entries in pref_chan list
1796 * @pref_chan: Preferred channels or %NULL to remove preferences
1797 * Returns: 0 on success, -1 on failure
1798 */
1799int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan,
1800		      const struct p2p_channel *pref_chan);
1801
1802/**
1803 * p2p_set_no_go_freq - Set no GO channel ranges
1804 * @p2p: P2P module context from p2p_init()
1805 * @list: Channel ranges or %NULL to remove restriction
1806 * Returns: 0 on success, -1 on failure
1807 */
1808int p2p_set_no_go_freq(struct p2p_data *p2p,
1809		       const struct wpa_freq_range_list *list);
1810
1811/**
1812 * p2p_in_progress - Check whether a P2P operation is progress
1813 * @p2p: P2P module context from p2p_init()
1814 * Returns: 0 if P2P module is idle or 1 if an operation is in progress
1815 */
1816int p2p_in_progress(struct p2p_data *p2p);
1817
1818/**
1819 * p2p_other_scan_completed - Notify completion of non-P2P scan
1820 * @p2p: P2P module context from p2p_init()
1821 * Returns: 0 if P2P module is idle or 1 if an operation was started
1822 */
1823int p2p_other_scan_completed(struct p2p_data *p2p);
1824
1825const char * p2p_wps_method_text(enum p2p_wps_method method);
1826
1827/**
1828 * p2p_set_config_timeout - Set local config timeouts
1829 * @p2p: P2P module context from p2p_init()
1830 * @go_timeout: Time in 10 ms units it takes to start the GO mode
1831 * @client_timeout: Time in 10 ms units it takes to start the client mode
1832 */
1833void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout,
1834			    u8 client_timeout);
1835
1836void p2p_increase_search_delay(struct p2p_data *p2p, unsigned int delay);
1837
1838int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie);
1839int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie);
1840int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie);
1841int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie);
1842int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie);
1843int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie);
1844int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie);
1845int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie);
1846int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem);
1847int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem);
1848int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p,
1849				  const struct wpabuf *elem);
1850struct wpabuf * wifi_display_encaps(struct wpabuf *subelems);
1851
1852/**
1853 * p2p_set_disc_int - Set min/max discoverable interval for p2p_find
1854 * @p2p: P2P module context from p2p_init()
1855 * @min_disc_int: minDiscoverableInterval (in units of 100 TU); default 1
1856 * @max_disc_int: maxDiscoverableInterval (in units of 100 TU); default 3
1857 * @max_disc_tu: Maximum number of TUs (1.024 ms) for discoverable interval; or
1858 *	-1 not to limit
1859 * Returns: 0 on success, or -1 on failure
1860 *
1861 * This function can be used to configure minDiscoverableInterval and
1862 * maxDiscoverableInterval parameters for the Listen state during device
1863 * discovery (p2p_find). A random number of 100 TU units is picked for each
1864 * Listen state iteration from [min_disc_int,max_disc_int] range.
1865 *
1866 * max_disc_tu can be used to futher limit the discoverable duration. However,
1867 * it should be noted that use of this parameter is not recommended since it
1868 * would not be compliant with the P2P specification.
1869 */
1870int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int,
1871		     int max_disc_tu);
1872
1873/**
1874 * p2p_get_state_txt - Get current P2P state for debug purposes
1875 * @p2p: P2P module context from p2p_init()
1876 * Returns: Name of the current P2P module state
1877 *
1878 * It should be noted that the P2P module state names are internal information
1879 * and subject to change at any point, i.e., this information should be used
1880 * mainly for debugging purposes.
1881 */
1882const char * p2p_get_state_txt(struct p2p_data *p2p);
1883
1884#endif /* P2P_H */
1885