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Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001/*
2 * Wi-Fi Direct - P2P module
3 * Copyright (c) 2009-2010, Atheros Communications
4 *
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08005 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07007 */
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 {
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -080053 WPS_NOT_READY, WPS_PIN_DISPLAY, WPS_PIN_KEYPAD, WPS_PBC
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070054};
55
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -070056enum p2p_sd_action {
57 SRV_UPDATE, SRV_ADD, SRV_DEL, SRV_FLUSH
58};
59
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070060/**
61 * struct p2p_go_neg_results - P2P Group Owner Negotiation results
62 */
63struct p2p_go_neg_results {
64 /**
65 * status - Negotiation result (Status Code)
66 *
67 * 0 (P2P_SC_SUCCESS) indicates success. Non-zero values indicate
68 * failed negotiation.
69 */
70 int status;
71
72 /**
73 * role_go - Whether local end is Group Owner
74 */
75 int role_go;
76
77 /**
78 * freq - Frequency of the group operational channel in MHz
79 */
80 int freq;
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 * passphrase - WPA2-Personal passphrase for the group (GO only)
94 */
95 char passphrase[64];
96
97 /**
98 * peer_device_addr - P2P Device Address of the peer
99 */
100 u8 peer_device_addr[ETH_ALEN];
101
102 /**
103 * peer_interface_addr - P2P Interface Address of the peer
104 */
105 u8 peer_interface_addr[ETH_ALEN];
106
107 /**
108 * wps_method - WPS method to be used during provisioning
109 */
110 enum p2p_wps_method wps_method;
111
112#define P2P_MAX_CHANNELS 50
113
114 /**
115 * freq_list - Zero-terminated list of possible operational channels
116 */
117 int freq_list[P2P_MAX_CHANNELS];
118
119 /**
120 * persistent_group - Whether the group should be made persistent
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800121 * 0 = not persistent
122 * 1 = persistent group without persistent reconnect
123 * 2 = persistent group with persistent reconnect
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700124 */
125 int persistent_group;
126
127 /**
128 * peer_config_timeout - Peer configuration timeout (in 10 msec units)
129 */
130 unsigned int peer_config_timeout;
131};
132
133struct p2p_data;
134
135enum p2p_scan_type {
136 P2P_SCAN_SOCIAL,
137 P2P_SCAN_FULL,
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -0700138 P2P_SCAN_SPECIFIC,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700139 P2P_SCAN_SOCIAL_PLUS_ONE
140};
141
142#define P2P_MAX_WPS_VENDOR_EXT 10
143
144/**
145 * struct p2p_peer_info - P2P peer information
146 */
147struct p2p_peer_info {
148 /**
149 * p2p_device_addr - P2P Device Address of the peer
150 */
151 u8 p2p_device_addr[ETH_ALEN];
152
153 /**
154 * pri_dev_type - Primary Device Type
155 */
156 u8 pri_dev_type[8];
157
158 /**
159 * device_name - Device Name (0..32 octets encoded in UTF-8)
160 */
161 char device_name[33];
162
163 /**
164 * manufacturer - Manufacturer (0..64 octets encoded in UTF-8)
165 */
166 char manufacturer[65];
167
168 /**
169 * model_name - Model Name (0..32 octets encoded in UTF-8)
170 */
171 char model_name[33];
172
173 /**
174 * model_number - Model Number (0..32 octets encoded in UTF-8)
175 */
176 char model_number[33];
177
178 /**
179 * serial_number - Serial Number (0..32 octets encoded in UTF-8)
180 */
181 char serial_number[33];
182
183 /**
Jouni Malinen75ecf522011-06-27 15:19:46 -0700184 * level - Signal level
185 */
186 int level;
187
188 /**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700189 * config_methods - WPS Configuration Methods
190 */
191 u16 config_methods;
192
193 /**
194 * dev_capab - Device Capabilities
195 */
196 u8 dev_capab;
197
198 /**
199 * group_capab - Group Capabilities
200 */
201 u8 group_capab;
202
203 /**
204 * wps_sec_dev_type_list - WPS secondary device type list
205 *
206 * This list includes from 0 to 16 Secondary Device Types as indicated
207 * by wps_sec_dev_type_list_len (8 * number of types).
208 */
209 u8 wps_sec_dev_type_list[128];
210
211 /**
212 * wps_sec_dev_type_list_len - Length of secondary device type list
213 */
214 size_t wps_sec_dev_type_list_len;
215
216 struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT];
217};
218
Jouni Malinen75ecf522011-06-27 15:19:46 -0700219enum p2p_prov_disc_status {
220 P2P_PROV_DISC_SUCCESS,
221 P2P_PROV_DISC_TIMEOUT,
222 P2P_PROV_DISC_REJECTED,
223};
224
Dmitry Shmidt04949592012-07-19 12:16:46 -0700225struct p2p_channel {
226 u8 op_class;
227 u8 chan;
228};
229
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700230/**
231 * struct p2p_config - P2P configuration
232 *
233 * This configuration is provided to the P2P module during initialization with
234 * p2p_init().
235 */
236struct p2p_config {
237 /**
238 * country - Country code to use in P2P operations
239 */
240 char country[3];
241
242 /**
243 * reg_class - Regulatory class for own listen channel
244 */
245 u8 reg_class;
246
247 /**
248 * channel - Own listen channel
249 */
250 u8 channel;
251
252 /**
253 * Regulatory class for own operational channel
254 */
255 u8 op_reg_class;
256
257 /**
258 * op_channel - Own operational channel
259 */
260 u8 op_channel;
261
262 /**
263 * cfg_op_channel - Whether op_channel is hardcoded in configuration
264 */
265 u8 cfg_op_channel;
266
267 /**
268 * channels - Own supported regulatory classes and channels
269 *
270 * List of supposerted channels per regulatory class. The regulatory
271 * classes are defined in IEEE Std 802.11-2007 Annex J and the
272 * numbering of the clases depends on the configured country code.
273 */
274 struct p2p_channels channels;
275
276 /**
Dmitry Shmidt04949592012-07-19 12:16:46 -0700277 * num_pref_chan - Number of pref_chan entries
278 */
279 unsigned int num_pref_chan;
280
281 /**
282 * pref_chan - Preferred channels for GO Negotiation
283 */
284 struct p2p_channel *pref_chan;
285
286 /**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700287 * pri_dev_type - Primary Device Type (see WPS)
288 */
289 u8 pri_dev_type[8];
290
291 /**
292 * P2P_SEC_DEVICE_TYPES - Maximum number of secondary device types
293 */
294#define P2P_SEC_DEVICE_TYPES 5
295
296 /**
297 * sec_dev_type - Optional secondary device types
298 */
299 u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8];
300
301 /**
302 * num_sec_dev_types - Number of sec_dev_type entries
303 */
304 size_t num_sec_dev_types;
305
306 /**
307 * dev_addr - P2P Device Address
308 */
309 u8 dev_addr[ETH_ALEN];
310
311 /**
312 * dev_name - Device Name
313 */
314 char *dev_name;
315
316 char *manufacturer;
317 char *model_name;
318 char *model_number;
319 char *serial_number;
320
321 u8 uuid[16];
322 u16 config_methods;
323
324 /**
325 * concurrent_operations - Whether concurrent operations are supported
326 */
327 int concurrent_operations;
328
329 /**
330 * max_peers - Maximum number of discovered peers to remember
331 *
332 * If more peers are discovered, older entries will be removed to make
333 * room for the new ones.
334 */
335 size_t max_peers;
336
337 /**
338 * p2p_intra_bss - Intra BSS communication is supported
339 */
340 int p2p_intra_bss;
341
342 /**
343 * ssid_postfix - Postfix data to add to the SSID
344 *
345 * This data will be added to the end of the SSID after the
346 * DIRECT-<random two octets> prefix.
347 */
348 u8 ssid_postfix[32 - 9];
349
350 /**
351 * ssid_postfix_len - Length of the ssid_postfix data
352 */
353 size_t ssid_postfix_len;
354
Dmitry Shmidt04abaa92012-08-17 16:22:31 -0700355#ifdef ANDROID_P2P
356 enum p2p_concurrency_type {
357 P2P_NON_CONCURRENT,
358 P2P_SINGLE_CHANNEL_CONCURRENT,
359 P2P_MULTI_CHANNEL_CONCURRENT,
360 } p2p_concurrency;
361#endif
362
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700363 /**
364 * msg_ctx - Context to use with wpa_msg() calls
365 */
366 void *msg_ctx;
367
368 /**
369 * cb_ctx - Context to use with callback functions
370 */
371 void *cb_ctx;
372
373
374 /* Callbacks to request lower layer driver operations */
375
376 /**
377 * p2p_scan - Request a P2P scan/search
378 * @ctx: Callback context from cb_ctx
379 * @type: Scan type
380 * @freq: Specific frequency (MHz) to scan or 0 for no restriction
381 * @num_req_dev_types: Number of requested device types
382 * @req_dev_types: Array containing requested device types
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800383 * @dev_id: Device ID to search for or %NULL to find all devices
Dmitry Shmidt04949592012-07-19 12:16:46 -0700384 * @pw_id: Device Password ID
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700385 * Returns: 0 on success, -1 on failure
386 *
387 * This callback function is used to request a P2P scan or search
388 * operation to be completed. Type type argument specifies which type
389 * of scan is to be done. @P2P_SCAN_SOCIAL indicates that only the
390 * social channels (1, 6, 11) should be scanned. @P2P_SCAN_FULL
Dmitry Shmidt04949592012-07-19 12:16:46 -0700391 * indicates that all channels are to be scanned.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700392 * @P2P_SCAN_SOCIAL_PLUS_ONE request scan of all the social channels
393 * plus one extra channel specified by freq.
394 *
395 * The full scan is used for the initial scan to find group owners from
396 * all. The other types are used during search phase scan of the social
397 * channels (with potential variation if the Listen channel of the
398 * target peer is known or if other channels are scanned in steps).
399 *
400 * The scan results are returned after this call by calling
401 * p2p_scan_res_handler() for each scan result that has a P2P IE and
402 * then calling p2p_scan_res_handled() to indicate that all scan
403 * results have been indicated.
404 */
405 int (*p2p_scan)(void *ctx, enum p2p_scan_type type, int freq,
406 unsigned int num_req_dev_types,
Dmitry Shmidt04949592012-07-19 12:16:46 -0700407 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700408
409 /**
410 * send_probe_resp - Transmit a Probe Response frame
411 * @ctx: Callback context from cb_ctx
412 * @buf: Probe Response frame (including the header and body)
413 * Returns: 0 on success, -1 on failure
414 *
415 * This function is used to reply to Probe Request frames that were
416 * indicated with a call to p2p_probe_req_rx(). The response is to be
417 * sent on the same channel or to be dropped if the driver is not
418 * anymore listening to Probe Request frames.
419 *
420 * Alternatively, the responsibility for building the Probe Response
421 * frames in Listen state may be in another system component in which
422 * case this function need to be implemented (i.e., the function
423 * pointer can be %NULL). The WPS and P2P IEs to be added for Probe
424 * Response frames in such a case are available from the
425 * start_listen() callback. It should be noted that the received Probe
426 * Request frames must be indicated by calling p2p_probe_req_rx() even
427 * if this send_probe_resp() is not used.
428 */
429 int (*send_probe_resp)(void *ctx, const struct wpabuf *buf);
430
431 /**
432 * send_action - Transmit an Action frame
433 * @ctx: Callback context from cb_ctx
434 * @freq: Frequency in MHz for the channel on which to transmit
435 * @dst: Destination MAC address (Address 1)
436 * @src: Source MAC address (Address 2)
437 * @bssid: BSSID (Address 3)
438 * @buf: Frame body (starting from Category field)
439 * @len: Length of buf in octets
440 * @wait_time: How many msec to wait for a response frame
441 * Returns: 0 on success, -1 on failure
442 *
443 * The Action frame may not be transmitted immediately and the status
444 * of the transmission must be reported by calling
445 * p2p_send_action_cb() once the frame has either been transmitted or
446 * it has been dropped due to excessive retries or other failure to
447 * transmit.
448 */
449 int (*send_action)(void *ctx, unsigned int freq, const u8 *dst,
450 const u8 *src, const u8 *bssid, const u8 *buf,
451 size_t len, unsigned int wait_time);
452
453 /**
454 * send_action_done - Notify that Action frame sequence was completed
455 * @ctx: Callback context from cb_ctx
456 *
457 * This function is called when the Action frame sequence that was
458 * started with send_action() has been completed, i.e., when there is
459 * no need to wait for a response from the destination peer anymore.
460 */
461 void (*send_action_done)(void *ctx);
462
463 /**
464 * start_listen - Start Listen state
465 * @ctx: Callback context from cb_ctx
466 * @freq: Frequency of the listen channel in MHz
467 * @duration: Duration for the Listen state in milliseconds
468 * @probe_resp_ie: IE(s) to be added to Probe Response frames
469 * Returns: 0 on success, -1 on failure
470 *
471 * This Listen state may not start immediately since the driver may
472 * have other pending operations to complete first. Once the Listen
473 * state has started, p2p_listen_cb() must be called to notify the P2P
474 * module. Once the Listen state is stopped, p2p_listen_end() must be
475 * called to notify the P2P module that the driver is not in the Listen
476 * state anymore.
477 *
478 * If the send_probe_resp() is not used for generating the response,
479 * the IEs from probe_resp_ie need to be added to the end of the Probe
480 * Response frame body. If send_probe_resp() is used, the probe_resp_ie
481 * information can be ignored.
482 */
483 int (*start_listen)(void *ctx, unsigned int freq,
484 unsigned int duration,
485 const struct wpabuf *probe_resp_ie);
486 /**
487 * stop_listen - Stop Listen state
488 * @ctx: Callback context from cb_ctx
489 *
490 * This callback can be used to stop a Listen state operation that was
491 * previously requested with start_listen().
492 */
493 void (*stop_listen)(void *ctx);
494
495 /**
496 * get_noa - Get current Notice of Absence attribute payload
497 * @ctx: Callback context from cb_ctx
498 * @interface_addr: P2P Interface Address of the GO
499 * @buf: Buffer for returning NoA
500 * @buf_len: Buffer length in octets
501 * Returns: Number of octets used in buf, 0 to indicate no NoA is being
502 * advertized, or -1 on failure
503 *
504 * This function is used to fetch the current Notice of Absence
505 * attribute value from GO.
506 */
507 int (*get_noa)(void *ctx, const u8 *interface_addr, u8 *buf,
508 size_t buf_len);
509
510 /* Callbacks to notify events to upper layer management entity */
511
512 /**
513 * dev_found - Notification of a found P2P Device
514 * @ctx: Callback context from cb_ctx
515 * @addr: Source address of the message triggering this notification
516 * @info: P2P peer information
517 * @new_device: Inform if the peer is newly found
518 *
519 * This callback is used to notify that a new P2P Device has been
520 * found. This may happen, e.g., during Search state based on scan
521 * results or during Listen state based on receive Probe Request and
522 * Group Owner Negotiation Request.
523 */
524 void (*dev_found)(void *ctx, const u8 *addr,
525 const struct p2p_peer_info *info,
526 int new_device);
527
528 /**
529 * dev_lost - Notification of a lost P2P Device
530 * @ctx: Callback context from cb_ctx
531 * @dev_addr: P2P Device Address of the lost P2P Device
532 *
533 * This callback is used to notify that a P2P Device has been deleted.
534 */
535 void (*dev_lost)(void *ctx, const u8 *dev_addr);
536
537 /**
538 * go_neg_req_rx - Notification of a receive GO Negotiation Request
539 * @ctx: Callback context from cb_ctx
540 * @src: Source address of the message triggering this notification
541 * @dev_passwd_id: WPS Device Password ID
542 *
543 * This callback is used to notify that a P2P Device is requesting
544 * group owner negotiation with us, but we do not have all the
545 * necessary information to start GO Negotiation. This indicates that
546 * the local user has not authorized the connection yet by providing a
547 * PIN or PBC button press. This information can be provided with a
548 * call to p2p_connect().
549 */
550 void (*go_neg_req_rx)(void *ctx, const u8 *src, u16 dev_passwd_id);
551
552 /**
553 * go_neg_completed - Notification of GO Negotiation results
554 * @ctx: Callback context from cb_ctx
555 * @res: GO Negotiation results
556 *
557 * This callback is used to notify that Group Owner Negotiation has
558 * been completed. Non-zero struct p2p_go_neg_results::status indicates
559 * failed negotiation. In case of success, this function is responsible
560 * for creating a new group interface (or using the existing interface
561 * depending on driver features), setting up the group interface in
562 * proper mode based on struct p2p_go_neg_results::role_go and
563 * initializing WPS provisioning either as a Registrar (if GO) or as an
564 * Enrollee. Successful WPS provisioning must be indicated by calling
565 * p2p_wps_success_cb(). The callee is responsible for timing out group
566 * formation if WPS provisioning cannot be completed successfully
567 * within 15 seconds.
568 */
569 void (*go_neg_completed)(void *ctx, struct p2p_go_neg_results *res);
570
571 /**
572 * sd_request - Callback on Service Discovery Request
573 * @ctx: Callback context from cb_ctx
574 * @freq: Frequency (in MHz) of the channel
575 * @sa: Source address of the request
576 * @dialog_token: Dialog token
577 * @update_indic: Service Update Indicator from the source of request
578 * @tlvs: P2P Service Request TLV(s)
579 * @tlvs_len: Length of tlvs buffer in octets
580 *
581 * This callback is used to indicate reception of a service discovery
582 * request. Response to the query must be indicated by calling
583 * p2p_sd_response() with the context information from the arguments to
584 * this callback function.
585 *
586 * This callback handler can be set to %NULL to indicate that service
587 * discovery is not supported.
588 */
589 void (*sd_request)(void *ctx, int freq, const u8 *sa, u8 dialog_token,
590 u16 update_indic, const u8 *tlvs, size_t tlvs_len);
591
592 /**
593 * sd_response - Callback on Service Discovery Response
594 * @ctx: Callback context from cb_ctx
595 * @sa: Source address of the request
596 * @update_indic: Service Update Indicator from the source of response
597 * @tlvs: P2P Service Response TLV(s)
598 * @tlvs_len: Length of tlvs buffer in octets
599 *
600 * This callback is used to indicate reception of a service discovery
601 * response. This callback handler can be set to %NULL if no service
602 * discovery requests are used. The information provided with this call
603 * is replies to the queries scheduled with p2p_sd_request().
604 */
605 void (*sd_response)(void *ctx, const u8 *sa, u16 update_indic,
606 const u8 *tlvs, size_t tlvs_len);
607
608 /**
609 * prov_disc_req - Callback on Provisiong Discovery Request
610 * @ctx: Callback context from cb_ctx
611 * @peer: Source address of the request
612 * @config_methods: Requested WPS Config Method
613 * @dev_addr: P2P Device Address of the found P2P Device
614 * @pri_dev_type: Primary Device Type
615 * @dev_name: Device Name
616 * @supp_config_methods: Supported configuration Methods
617 * @dev_capab: Device Capabilities
618 * @group_capab: Group Capabilities
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800619 * @group_id: P2P Group ID (or %NULL if not included)
620 * @group_id_len: Length of P2P Group ID
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700621 *
622 * This callback is used to indicate reception of a Provision Discovery
623 * Request frame that the P2P module accepted.
624 */
625 void (*prov_disc_req)(void *ctx, const u8 *peer, u16 config_methods,
626 const u8 *dev_addr, const u8 *pri_dev_type,
627 const char *dev_name, u16 supp_config_methods,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800628 u8 dev_capab, u8 group_capab,
629 const u8 *group_id, size_t group_id_len);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700630
631 /**
632 * prov_disc_resp - Callback on Provisiong Discovery Response
633 * @ctx: Callback context from cb_ctx
634 * @peer: Source address of the response
635 * @config_methods: Value from p2p_prov_disc_req() or 0 on failure
636 *
637 * This callback is used to indicate reception of a Provision Discovery
638 * Response frame for a pending request scheduled with
639 * p2p_prov_disc_req(). This callback handler can be set to %NULL if
640 * provision discovery is not used.
641 */
642 void (*prov_disc_resp)(void *ctx, const u8 *peer, u16 config_methods);
643
644 /**
Jouni Malinen75ecf522011-06-27 15:19:46 -0700645 * prov_disc_fail - Callback on Provision Discovery failure
646 * @ctx: Callback context from cb_ctx
647 * @peer: Source address of the response
648 * @status: Cause of failure, will not be %P2P_PROV_DISC_SUCCESS
649 *
650 * This callback is used to indicate either a failure or no response
651 * to an earlier provision discovery request.
652 *
653 * This callback handler can be set to %NULL if provision discovery
654 * is not used or failures do not need to be indicated.
655 */
656 void (*prov_disc_fail)(void *ctx, const u8 *peer,
657 enum p2p_prov_disc_status status);
658
659 /**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700660 * invitation_process - Optional callback for processing Invitations
661 * @ctx: Callback context from cb_ctx
662 * @sa: Source address of the Invitation Request
663 * @bssid: P2P Group BSSID from the request or %NULL if not included
664 * @go_dev_addr: GO Device Address from P2P Group ID
665 * @ssid: SSID from P2P Group ID
666 * @ssid_len: Length of ssid buffer in octets
667 * @go: Variable for returning whether the local end is GO in the group
668 * @group_bssid: Buffer for returning P2P Group BSSID (if local end GO)
669 * @force_freq: Variable for returning forced frequency for the group
670 * @persistent_group: Whether this is an invitation to reinvoke a
671 * persistent group (instead of invitation to join an active
672 * group)
673 * Returns: Status code (P2P_SC_*)
674 *
675 * This optional callback can be used to implement persistent reconnect
676 * by allowing automatic restarting of persistent groups without user
677 * interaction. If this callback is not implemented (i.e., is %NULL),
678 * the received Invitation Request frames are replied with
679 * %P2P_SC_REQ_RECEIVED status and indicated to upper layer with the
680 * invitation_result() callback.
681 *
682 * If the requested parameters are acceptable and the group is known,
683 * %P2P_SC_SUCCESS may be returned. If the requested group is unknown,
684 * %P2P_SC_FAIL_UNKNOWN_GROUP should be returned. %P2P_SC_REQ_RECEIVED
685 * can be returned if there is not enough data to provide immediate
686 * response, i.e., if some sort of user interaction is needed. The
687 * invitation_received() callback will be called in that case
688 * immediately after this call.
689 */
690 u8 (*invitation_process)(void *ctx, const u8 *sa, const u8 *bssid,
691 const u8 *go_dev_addr, const u8 *ssid,
692 size_t ssid_len, int *go, u8 *group_bssid,
693 int *force_freq, int persistent_group);
694
695 /**
696 * invitation_received - Callback on Invitation Request RX
697 * @ctx: Callback context from cb_ctx
698 * @sa: Source address of the Invitation Request
699 * @bssid: P2P Group BSSID or %NULL if not received
700 * @ssid: SSID of the group
701 * @ssid_len: Length of ssid in octets
702 * @go_dev_addr: GO Device Address
703 * @status: Response Status
704 * @op_freq: Operational frequency for the group
705 *
706 * This callback is used to indicate sending of an Invitation Response
707 * for a received Invitation Request. If status == 0 (success), the
708 * upper layer code is responsible for starting the group. status == 1
709 * indicates need to get user authorization for the group. Other status
710 * values indicate that the invitation request was rejected.
711 */
712 void (*invitation_received)(void *ctx, const u8 *sa, const u8 *bssid,
713 const u8 *ssid, size_t ssid_len,
714 const u8 *go_dev_addr, u8 status,
715 int op_freq);
716
717 /**
718 * invitation_result - Callback on Invitation result
719 * @ctx: Callback context from cb_ctx
720 * @status: Negotiation result (Status Code)
721 * @bssid: P2P Group BSSID or %NULL if not received
722 *
723 * This callback is used to indicate result of an Invitation procedure
724 * started with a call to p2p_invite(). The indicated status code is
725 * the value received from the peer in Invitation Response with 0
726 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a
727 * local failure in transmitting the Invitation Request.
728 */
729 void (*invitation_result)(void *ctx, int status, const u8 *bssid);
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800730
731 /**
732 * go_connected - Check whether we are connected to a GO
733 * @ctx: Callback context from cb_ctx
734 * @dev_addr: P2P Device Address of a GO
735 * Returns: 1 if we are connected as a P2P client to the specified GO
736 * or 0 if not.
737 */
738 int (*go_connected)(void *ctx, const u8 *dev_addr);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700739};
740
741
742/* P2P module initialization/deinitialization */
743
744/**
745 * p2p_init - Initialize P2P module
746 * @cfg: P2P module configuration
747 * Returns: Pointer to private data or %NULL on failure
748 *
749 * This function is used to initialize global P2P module context (one per
750 * device). The P2P module will keep a copy of the configuration data, so the
751 * caller does not need to maintain this structure. However, the callback
752 * functions and the context parameters to them must be kept available until
753 * the P2P module is deinitialized with p2p_deinit().
754 */
755struct p2p_data * p2p_init(const struct p2p_config *cfg);
756
757/**
758 * p2p_deinit - Deinitialize P2P module
759 * @p2p: P2P module context from p2p_init()
760 */
761void p2p_deinit(struct p2p_data *p2p);
762
763/**
764 * p2p_flush - Flush P2P module state
765 * @p2p: P2P module context from p2p_init()
766 *
767 * This command removes the P2P module state like peer device entries.
768 */
769void p2p_flush(struct p2p_data *p2p);
770
771/**
772 * p2p_unauthorize - Unauthorize the specified peer device
773 * @p2p: P2P module context from p2p_init()
774 * @addr: P2P peer entry to be unauthorized
775 * Returns: 0 on success, -1 on failure
776 *
777 * This command removes any connection authorization from the specified P2P
778 * peer device address. This can be used, e.g., to cancel effect of a previous
779 * p2p_authorize() or p2p_connect() call that has not yet resulted in completed
780 * GO Negotiation.
781 */
782int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr);
783
784/**
785 * p2p_set_dev_name - Set device name
786 * @p2p: P2P module context from p2p_init()
787 * Returns: 0 on success, -1 on failure
788 *
789 * This function can be used to update the P2P module configuration with
790 * information that was not available at the time of the p2p_init() call.
791 */
792int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name);
793
794int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer);
795int p2p_set_model_name(struct p2p_data *p2p, const char *model_name);
796int p2p_set_model_number(struct p2p_data *p2p, const char *model_number);
797int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number);
798
799void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods);
800void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid);
801
802/**
803 * p2p_set_pri_dev_type - Set primary device type
804 * @p2p: P2P module context from p2p_init()
805 * Returns: 0 on success, -1 on failure
806 *
807 * This function can be used to update the P2P module configuration with
808 * information that was not available at the time of the p2p_init() call.
809 */
810int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type);
811
812/**
813 * p2p_set_sec_dev_types - Set secondary device types
814 * @p2p: P2P module context from p2p_init()
815 * Returns: 0 on success, -1 on failure
816 *
817 * This function can be used to update the P2P module configuration with
818 * information that was not available at the time of the p2p_init() call.
819 */
820int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
821 size_t num_dev_types);
822
823int p2p_set_country(struct p2p_data *p2p, const char *country);
824
825
826/* Commands from upper layer management entity */
827
828enum p2p_discovery_type {
829 P2P_FIND_START_WITH_FULL,
830 P2P_FIND_ONLY_SOCIAL,
831 P2P_FIND_PROGRESSIVE
832};
833
834/**
835 * p2p_find - Start P2P Find (Device Discovery)
836 * @p2p: P2P module context from p2p_init()
837 * @timeout: Timeout for find operation in seconds or 0 for no timeout
838 * @type: Device Discovery type
839 * @num_req_dev_types: Number of requested device types
840 * @req_dev_types: Requested device types array, must be an array
841 * containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no
842 * requested device types.
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800843 * @dev_id: Device ID to search for or %NULL to find all devices
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700844 * Returns: 0 on success, -1 on failure
845 */
846int p2p_find(struct p2p_data *p2p, unsigned int timeout,
847 enum p2p_discovery_type type,
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800848 unsigned int num_req_dev_types, const u8 *req_dev_types,
849 const u8 *dev_id);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700850
851/**
852 * p2p_stop_find - Stop P2P Find (Device Discovery)
853 * @p2p: P2P module context from p2p_init()
854 */
855void p2p_stop_find(struct p2p_data *p2p);
856
857/**
858 * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq
859 * @p2p: P2P module context from p2p_init()
860 * @freq: Frequency in MHz for next operation
861 *
862 * This is like p2p_stop_find(), but Listen state is not stopped if we are
863 * already on the same frequency.
864 */
865void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq);
866
867/**
868 * p2p_listen - Start P2P Listen state for specified duration
869 * @p2p: P2P module context from p2p_init()
870 * @timeout: Listen state duration in milliseconds
871 * Returns: 0 on success, -1 on failure
872 *
873 * This function can be used to request the P2P module to keep the device
874 * discoverable on the listen channel for an extended set of time. At least in
875 * its current form, this is mainly used for testing purposes and may not be of
876 * much use for normal P2P operations.
877 */
878int p2p_listen(struct p2p_data *p2p, unsigned int timeout);
879
880/**
881 * p2p_connect - Start P2P group formation (GO negotiation)
882 * @p2p: P2P module context from p2p_init()
883 * @peer_addr: MAC address of the peer P2P client
884 * @wps_method: WPS method to be used in provisioning
885 * @go_intent: Local GO intent value (1..15)
886 * @own_interface_addr: Intended interface address to use with the group
887 * @force_freq: The only allowed channel frequency in MHz or 0
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800888 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
889 * persistent group without persistent reconnect, 2 = persistent group with
890 * persistent reconnect)
Dmitry Shmidt04949592012-07-19 12:16:46 -0700891 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
892 * a new SSID
893 * @force_ssid_len: Length of $force_ssid buffer
894 * @pd_before_go_neg: Whether to send Provision Discovery prior to GO
895 * Negotiation as an interoperability workaround when initiating group
896 * formation
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700897 * Returns: 0 on success, -1 on failure
898 */
899int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
900 enum p2p_wps_method wps_method,
901 int go_intent, const u8 *own_interface_addr,
Dmitry Shmidt04949592012-07-19 12:16:46 -0700902 unsigned int force_freq, int persistent_group,
903 const u8 *force_ssid, size_t force_ssid_len,
904 int pd_before_go_neg);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700905
906/**
907 * p2p_authorize - Authorize P2P group formation (GO negotiation)
908 * @p2p: P2P module context from p2p_init()
909 * @peer_addr: MAC address of the peer P2P client
910 * @wps_method: WPS method to be used in provisioning
911 * @go_intent: Local GO intent value (1..15)
912 * @own_interface_addr: Intended interface address to use with the group
913 * @force_freq: The only allowed channel frequency in MHz or 0
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800914 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
915 * persistent group without persistent reconnect, 2 = persistent group with
916 * persistent reconnect)
Dmitry Shmidt04949592012-07-19 12:16:46 -0700917 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
918 * a new SSID
919 * @force_ssid_len: Length of $force_ssid buffer
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700920 * Returns: 0 on success, -1 on failure
921 *
922 * This is like p2p_connect(), but the actual group negotiation is not
923 * initiated automatically, i.e., the other end is expected to do that.
924 */
925int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
926 enum p2p_wps_method wps_method,
927 int go_intent, const u8 *own_interface_addr,
Dmitry Shmidt04949592012-07-19 12:16:46 -0700928 unsigned int force_freq, int persistent_group,
929 const u8 *force_ssid, size_t force_ssid_len);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700930
931/**
932 * p2p_reject - Reject peer device (explicitly block connection attempts)
933 * @p2p: P2P module context from p2p_init()
934 * @peer_addr: MAC address of the peer P2P client
935 * Returns: 0 on success, -1 on failure
936 */
937int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr);
938
939/**
940 * p2p_prov_disc_req - Send Provision Discovery Request
941 * @p2p: P2P module context from p2p_init()
942 * @peer_addr: MAC address of the peer P2P client
943 * @config_methods: WPS Config Methods value (only one bit set)
944 * @join: Whether this is used by a client joining an active group
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800945 * @force_freq: Forced TX frequency for the frame (mainly for the join case)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700946 * Returns: 0 on success, -1 on failure
947 *
948 * This function can be used to request a discovered P2P peer to display a PIN
949 * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us
950 * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame
951 * is transmitted once immediately and if no response is received, the frame
952 * will be sent again whenever the target device is discovered during device
953 * dsicovery (start with a p2p_find() call). Response from the peer is
954 * indicated with the p2p_config::prov_disc_resp() callback.
955 */
956int p2p_prov_disc_req(struct p2p_data *p2p, const u8 *peer_addr,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800957 u16 config_methods, int join, int force_freq);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700958
959/**
960 * p2p_sd_request - Schedule a service discovery query
961 * @p2p: P2P module context from p2p_init()
962 * @dst: Destination peer or %NULL to apply for all peers
963 * @tlvs: P2P Service Query TLV(s)
964 * Returns: Reference to the query or %NULL on failure
965 *
966 * Response to the query is indicated with the p2p_config::sd_response()
967 * callback.
968 */
969void * p2p_sd_request(struct p2p_data *p2p, const u8 *dst,
970 const struct wpabuf *tlvs);
971
972/**
973 * p2p_sd_cancel_request - Cancel a pending service discovery query
974 * @p2p: P2P module context from p2p_init()
975 * @req: Query reference from p2p_sd_request()
976 * Returns: 0 if request for cancelled; -1 if not found
977 */
978int p2p_sd_cancel_request(struct p2p_data *p2p, void *req);
979
980/**
981 * p2p_sd_response - Send response to a service discovery query
982 * @p2p: P2P module context from p2p_init()
983 * @freq: Frequency from p2p_config::sd_request() callback
984 * @dst: Destination address from p2p_config::sd_request() callback
985 * @dialog_token: Dialog token from p2p_config::sd_request() callback
986 * @resp_tlvs: P2P Service Response TLV(s)
987 *
988 * This function is called as a response to the request indicated with
989 * p2p_config::sd_request() callback.
990 */
991void p2p_sd_response(struct p2p_data *p2p, int freq, const u8 *dst,
992 u8 dialog_token, const struct wpabuf *resp_tlvs);
993
994/**
995 * p2p_sd_service_update - Indicate a change in local services
996 * @p2p: P2P module context from p2p_init()
997 *
998 * This function needs to be called whenever there is a change in availability
999 * of the local services. This will increment the Service Update Indicator
1000 * value which will be used in SD Request and Response frames.
1001 */
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -07001002#ifdef ANDROID_P2P
1003void p2p_sd_service_update(struct p2p_data *p2p, int action);
1004#else
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001005void p2p_sd_service_update(struct p2p_data *p2p);
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -07001006#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001007
1008
1009enum p2p_invite_role {
1010 P2P_INVITE_ROLE_GO,
1011 P2P_INVITE_ROLE_ACTIVE_GO,
1012 P2P_INVITE_ROLE_CLIENT
1013};
1014
1015/**
1016 * p2p_invite - Invite a P2P Device into a group
1017 * @p2p: P2P module context from p2p_init()
1018 * @peer: Device Address of the peer P2P Device
1019 * @role: Local role in the group
1020 * @bssid: Group BSSID or %NULL if not known
1021 * @ssid: Group SSID
1022 * @ssid_len: Length of ssid in octets
1023 * @force_freq: The only allowed channel frequency in MHz or 0
1024 * @go_dev_addr: Forced GO Device Address or %NULL if none
1025 * @persistent_group: Whether this is to reinvoke a persistent group
1026 * Returns: 0 on success, -1 on failure
1027 */
1028int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role,
1029 const u8 *bssid, const u8 *ssid, size_t ssid_len,
1030 unsigned int force_freq, const u8 *go_dev_addr,
1031 int persistent_group);
1032
1033/**
1034 * p2p_presence_req - Request GO presence
1035 * @p2p: P2P module context from p2p_init()
1036 * @go_interface_addr: GO P2P Interface Address
1037 * @own_interface_addr: Own P2P Interface Address for this group
1038 * @freq: Group operating frequence (in MHz)
1039 * @duration1: Preferred presence duration in microseconds
1040 * @interval1: Preferred presence interval in microseconds
1041 * @duration2: Acceptable presence duration in microseconds
1042 * @interval2: Acceptable presence interval in microseconds
1043 * Returns: 0 on success, -1 on failure
1044 *
1045 * If both duration and interval values are zero, the parameter pair is not
1046 * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0).
1047 */
1048int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
1049 const u8 *own_interface_addr, unsigned int freq,
1050 u32 duration1, u32 interval1, u32 duration2,
1051 u32 interval2);
1052
1053/**
1054 * p2p_ext_listen - Set Extended Listen Timing
1055 * @p2p: P2P module context from p2p_init()
1056 * @freq: Group operating frequence (in MHz)
1057 * @period: Availability period in milliseconds (1-65535; 0 to disable)
1058 * @interval: Availability interval in milliseconds (1-65535; 0 to disable)
1059 * Returns: 0 on success, -1 on failure
1060 *
1061 * This function can be used to enable or disable (period = interval = 0)
1062 * Extended Listen Timing. When enabled, the P2P Device will become
1063 * discoverable (go into Listen State) every @interval milliseconds for at
1064 * least @period milliseconds.
1065 */
1066int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
1067 unsigned int interval);
1068
1069/* Event notifications from upper layer management operations */
1070
1071/**
1072 * p2p_wps_success_cb - Report successfully completed WPS provisioning
1073 * @p2p: P2P module context from p2p_init()
1074 * @mac_addr: Peer address
1075 *
1076 * This function is used to report successfully completed WPS provisioning
1077 * during group formation in both GO/Registrar and client/Enrollee roles.
1078 */
1079void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr);
1080
1081/**
1082 * p2p_group_formation_failed - Report failed WPS provisioning
1083 * @p2p: P2P module context from p2p_init()
1084 *
1085 * This function is used to report failed group formation. This can happen
1086 * either due to failed WPS provisioning or due to 15 second timeout during
1087 * the provisioning phase.
1088 */
1089void p2p_group_formation_failed(struct p2p_data *p2p);
1090
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001091/**
1092 * p2p_get_provisioning_info - Get any stored provisioning info
1093 * @p2p: P2P module context from p2p_init()
1094 * @addr: Peer P2P Device Address
1095 * Returns: WPS provisioning information (WPS config method) or 0 if no
1096 * information is available
1097 *
1098 * This function is used to retrieve stored WPS provisioning info for the given
1099 * peer.
1100 */
1101u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr);
1102
1103/**
1104 * p2p_clear_provisioning_info - Clear any stored provisioning info
1105 * @p2p: P2P module context from p2p_init()
Dmitry Shmidt04949592012-07-19 12:16:46 -07001106 * @iface_addr: Peer P2P Device Address
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001107 *
1108 * This function is used to clear stored WPS provisioning info for the given
1109 * peer.
1110 */
Dmitry Shmidt04949592012-07-19 12:16:46 -07001111void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001112
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001113
1114/* Event notifications from lower layer driver operations */
1115
1116/**
Dmitry Shmidt04949592012-07-19 12:16:46 -07001117 * enum p2p_probe_req_status
1118 *
1119 * @P2P_PREQ_MALFORMED: frame was not well-formed
1120 * @P2P_PREQ_NOT_LISTEN: device isn't in listen state, frame ignored
1121 * @P2P_PREQ_NOT_P2P: frame was not a P2P probe request
1122 * @P2P_PREQ_P2P_NOT_PROCESSED: frame was P2P but wasn't processed
1123 * @P2P_PREQ_P2P_PROCESSED: frame has been processed by P2P
1124 */
1125enum p2p_probe_req_status {
1126 P2P_PREQ_MALFORMED,
1127 P2P_PREQ_NOT_LISTEN,
1128 P2P_PREQ_NOT_P2P,
1129 P2P_PREQ_NOT_PROCESSED,
1130 P2P_PREQ_PROCESSED
1131};
1132
1133/**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001134 * p2p_probe_req_rx - Report reception of a Probe Request frame
1135 * @p2p: P2P module context from p2p_init()
1136 * @addr: Source MAC address
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001137 * @dst: Destination MAC address if available or %NULL
1138 * @bssid: BSSID if available or %NULL
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001139 * @ie: Information elements from the Probe Request frame body
1140 * @ie_len: Length of ie buffer in octets
Dmitry Shmidt04949592012-07-19 12:16:46 -07001141 * Returns: value indicating the type and status of the probe request
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001142 */
Dmitry Shmidt04949592012-07-19 12:16:46 -07001143enum p2p_probe_req_status
1144p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
1145 const u8 *bssid, const u8 *ie, size_t ie_len);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001146
1147/**
1148 * p2p_rx_action - Report received Action frame
1149 * @p2p: P2P module context from p2p_init()
1150 * @da: Destination address of the received Action frame
1151 * @sa: Source address of the received Action frame
1152 * @bssid: Address 3 of the received Action frame
1153 * @category: Category of the received Action frame
1154 * @data: Action frame body after the Category field
1155 * @len: Length of the data buffer in octets
1156 * @freq: Frequency (in MHz) on which the frame was received
1157 */
1158void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1159 const u8 *bssid, u8 category,
1160 const u8 *data, size_t len, int freq);
1161
1162/**
1163 * p2p_scan_res_handler - Indicate a P2P scan results
1164 * @p2p: P2P module context from p2p_init()
1165 * @bssid: BSSID of the scan result
1166 * @freq: Frequency of the channel on which the device was found in MHz
1167 * @level: Signal level (signal strength of the received Beacon/Probe Response
1168 * frame)
1169 * @ies: Pointer to IEs from the scan result
1170 * @ies_len: Length of the ies buffer
1171 * Returns: 0 to continue or 1 to stop scan result indication
1172 *
1173 * This function is called to indicate a scan result entry with P2P IE from a
1174 * scan requested with struct p2p_config::p2p_scan(). This can be called during
1175 * the actual scan process (i.e., whenever a new device is found) or as a
1176 * sequence of calls after the full scan has been completed. The former option
1177 * can result in optimized operations, but may not be supported by all
1178 * driver/firmware designs. The ies buffer need to include at least the P2P IE,
1179 * but it is recommended to include all IEs received from the device. The
1180 * caller does not need to check that the IEs contain a P2P IE before calling
1181 * this function since frames will be filtered internally if needed.
1182 *
1183 * This function will return 1 if it wants to stop scan result iteration (and
1184 * scan in general if it is still in progress). This is used to allow faster
1185 * start of a pending operation, e.g., to start a pending GO negotiation.
1186 */
1187int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
1188 int level, const u8 *ies, size_t ies_len);
1189
1190/**
1191 * p2p_scan_res_handled - Indicate end of scan results
1192 * @p2p: P2P module context from p2p_init()
1193 *
1194 * This function is called to indicate that all P2P scan results from a scan
1195 * have been reported with zero or more calls to p2p_scan_res_handler(). This
1196 * function must be called as a response to successful
1197 * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler()
1198 * calls stopped iteration.
1199 */
1200void p2p_scan_res_handled(struct p2p_data *p2p);
1201
1202enum p2p_send_action_result {
1203 P2P_SEND_ACTION_SUCCESS /* Frame was send and acknowledged */,
1204 P2P_SEND_ACTION_NO_ACK /* Frame was sent, but not acknowledged */,
1205 P2P_SEND_ACTION_FAILED /* Frame was not sent due to a failure */
1206};
1207
1208/**
1209 * p2p_send_action_cb - Notify TX status of an Action frame
1210 * @p2p: P2P module context from p2p_init()
1211 * @freq: Channel frequency in MHz
1212 * @dst: Destination MAC address (Address 1)
1213 * @src: Source MAC address (Address 2)
1214 * @bssid: BSSID (Address 3)
1215 * @result: Result of the transmission attempt
1216 *
1217 * This function is used to indicate the result of an Action frame transmission
1218 * that was requested with struct p2p_config::send_action() callback.
1219 */
1220void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
1221 const u8 *src, const u8 *bssid,
1222 enum p2p_send_action_result result);
1223
1224/**
1225 * p2p_listen_cb - Indicate the start of a requested Listen state
1226 * @p2p: P2P module context from p2p_init()
1227 * @freq: Listen channel frequency in MHz
1228 * @duration: Duration for the Listen state in milliseconds
1229 *
1230 * This function is used to indicate that a Listen state requested with
1231 * struct p2p_config::start_listen() callback has started.
1232 */
1233void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
1234 unsigned int duration);
1235
1236/**
1237 * p2p_listen_end - Indicate the end of a requested Listen state
1238 * @p2p: P2P module context from p2p_init()
1239 * @freq: Listen channel frequency in MHz
1240 * Returns: 0 if no operations were started, 1 if an operation was started
1241 *
1242 * This function is used to indicate that a Listen state requested with
1243 * struct p2p_config::start_listen() callback has ended.
1244 */
1245int p2p_listen_end(struct p2p_data *p2p, unsigned int freq);
1246
1247void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
1248 const u8 *ie, size_t ie_len);
1249
1250void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
1251 const u8 *ie, size_t ie_len);
1252
1253
1254/* Per-group P2P state for GO */
1255
1256struct p2p_group;
1257
1258/**
1259 * struct p2p_group_config - P2P group configuration
1260 *
1261 * This configuration is provided to the P2P module during initialization of
1262 * the per-group information with p2p_group_init().
1263 */
1264struct p2p_group_config {
1265 /**
1266 * persistent_group - Whether the group is persistent
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001267 * 0 = not a persistent group
1268 * 1 = persistent group without persistent reconnect
1269 * 2 = persistent group with persistent reconnect
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001270 */
1271 int persistent_group;
1272
1273 /**
1274 * interface_addr - P2P Interface Address of the group
1275 */
1276 u8 interface_addr[ETH_ALEN];
1277
1278 /**
1279 * max_clients - Maximum number of clients in the group
1280 */
1281 unsigned int max_clients;
1282
1283 /**
Dmitry Shmidt04949592012-07-19 12:16:46 -07001284 * ssid - Group SSID
1285 */
1286 u8 ssid[32];
1287
1288 /**
1289 * ssid_len - Length of SSID
1290 */
1291 size_t ssid_len;
1292
1293 /**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001294 * cb_ctx - Context to use with callback functions
1295 */
1296 void *cb_ctx;
1297
1298 /**
1299 * ie_update - Notification of IE update
1300 * @ctx: Callback context from cb_ctx
1301 * @beacon_ies: P2P IE for Beacon frames or %NULL if no change
1302 * @proberesp_ies: P2P Ie for Probe Response frames
1303 *
1304 * P2P module uses this callback function to notify whenever the P2P IE
1305 * in Beacon or Probe Response frames should be updated based on group
1306 * events.
1307 *
1308 * The callee is responsible for freeing the returned buffer(s) with
1309 * wpabuf_free().
1310 */
1311 void (*ie_update)(void *ctx, struct wpabuf *beacon_ies,
1312 struct wpabuf *proberesp_ies);
1313
1314 /**
1315 * idle_update - Notification of changes in group idle state
1316 * @ctx: Callback context from cb_ctx
1317 * @idle: Whether the group is idle (no associated stations)
1318 */
1319 void (*idle_update)(void *ctx, int idle);
1320};
1321
1322/**
1323 * p2p_group_init - Initialize P2P group
1324 * @p2p: P2P module context from p2p_init()
1325 * @config: P2P group configuration (will be freed by p2p_group_deinit())
1326 * Returns: Pointer to private data or %NULL on failure
1327 *
1328 * This function is used to initialize per-group P2P module context. Currently,
1329 * this is only used to manage GO functionality and P2P clients do not need to
1330 * create an instance of this per-group information.
1331 */
1332struct p2p_group * p2p_group_init(struct p2p_data *p2p,
1333 struct p2p_group_config *config);
1334
1335/**
1336 * p2p_group_deinit - Deinitialize P2P group
1337 * @group: P2P group context from p2p_group_init()
1338 */
1339void p2p_group_deinit(struct p2p_group *group);
1340
1341/**
1342 * p2p_group_notif_assoc - Notification of P2P client association with GO
1343 * @group: P2P group context from p2p_group_init()
1344 * @addr: Interface address of the P2P client
1345 * @ie: IEs from the (Re)association Request frame
1346 * @len: Length of the ie buffer in octets
1347 * Returns: 0 on success, -1 on failure
1348 */
1349int p2p_group_notif_assoc(struct p2p_group *group, const u8 *addr,
1350 const u8 *ie, size_t len);
1351
1352/**
1353 * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response
1354 * @group: P2P group context from p2p_group_init()
1355 * @status: Status value (P2P_SC_SUCCESS if association succeeded)
1356 * Returns: P2P IE for (Re)association Response or %NULL on failure
1357 *
1358 * The caller is responsible for freeing the returned buffer with
1359 * wpabuf_free().
1360 */
1361struct wpabuf * p2p_group_assoc_resp_ie(struct p2p_group *group, u8 status);
1362
1363/**
1364 * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO
1365 * @group: P2P group context from p2p_group_init()
1366 * @addr: Interface address of the P2P client
1367 */
1368void p2p_group_notif_disassoc(struct p2p_group *group, const u8 *addr);
1369
1370/**
1371 * p2p_group_notif_formation_done - Notification of completed group formation
1372 * @group: P2P group context from p2p_group_init()
1373 */
1374void p2p_group_notif_formation_done(struct p2p_group *group);
1375
1376/**
1377 * p2p_group_notif_noa - Notification of NoA change
1378 * @group: P2P group context from p2p_group_init()
1379 * @noa: Notice of Absence attribute payload, %NULL if none
1380 * @noa_len: Length of noa buffer in octets
1381 * Returns: 0 on success, -1 on failure
1382 *
1383 * Notify the P2P group management about a new NoA contents. This will be
1384 * inserted into the P2P IEs in Beacon and Probe Response frames with rest of
1385 * the group information.
1386 */
1387int p2p_group_notif_noa(struct p2p_group *group, const u8 *noa,
1388 size_t noa_len);
1389
1390/**
1391 * p2p_group_match_dev_type - Match device types in group with requested type
1392 * @group: P2P group context from p2p_group_init()
1393 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1394 * Returns: 1 on match, 0 on mismatch
1395 *
1396 * This function can be used to match the Requested Device Type attribute in
1397 * WPS IE with the device types of a group member for deciding whether a GO
1398 * should reply to a Probe Request frame. Match will be reported if the WPS IE
1399 * is not requested any specific device type.
1400 */
1401int p2p_group_match_dev_type(struct p2p_group *group, struct wpabuf *wps);
1402
1403/**
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001404 * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id
1405 */
1406int p2p_group_match_dev_id(struct p2p_group *group, struct wpabuf *p2p);
1407
1408/**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001409 * p2p_group_go_discover - Send GO Discoverability Request to a group client
1410 * @group: P2P group context from p2p_group_init()
1411 * Returns: 0 on success (frame scheduled); -1 if client was not found
1412 */
1413int p2p_group_go_discover(struct p2p_group *group, const u8 *dev_id,
1414 const u8 *searching_dev, int rx_freq);
1415
1416
1417/* Generic helper functions */
1418
1419/**
1420 * p2p_ie_text - Build text format description of P2P IE
1421 * @p2p_ie: P2P IE
1422 * @buf: Buffer for returning text
1423 * @end: Pointer to the end of the buf area
1424 * Returns: Number of octets written to the buffer or -1 on failure
1425 *
1426 * This function can be used to parse P2P IE contents into text format
1427 * field=value lines.
1428 */
1429int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end);
1430
1431/**
1432 * p2p_scan_result_text - Build text format description of P2P IE
1433 * @ies: Information elements from scan results
1434 * @ies_len: ies buffer length in octets
1435 * @buf: Buffer for returning text
1436 * @end: Pointer to the end of the buf area
1437 * Returns: Number of octets written to the buffer or -1 on failure
1438 *
1439 * This function can be used to parse P2P IE contents into text format
1440 * field=value lines.
1441 */
1442int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end);
1443
1444/**
Dmitry Shmidt04949592012-07-19 12:16:46 -07001445 * p2p_parse_dev_addr_in_p2p_ie - Parse P2P Device Address from a concatenated
1446 * P2P IE
1447 * @p2p_ie: P2P IE
1448 * @dev_addr: Buffer for returning P2P Device Address
1449 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1450 */
1451int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr);
1452
1453/**
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001454 * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s)
1455 * @ies: Information elements from scan results
1456 * @ies_len: ies buffer length in octets
1457 * @dev_addr: Buffer for returning P2P Device Address
1458 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1459 */
1460int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr);
1461
1462/**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001463 * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame
1464 * @p2p: P2P module context from p2p_init()
1465 * @bssid: BSSID
1466 * @buf: Buffer for writing the P2P IE
1467 * @len: Maximum buf length in octets
1468 * @p2p_group: Whether this is for association with a P2P GO
1469 * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none
1470 * Returns: Number of octets written into buf or -1 on failure
1471 */
1472int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
1473 size_t len, int p2p_group, struct wpabuf *p2p_ie);
1474
1475/**
1476 * p2p_scan_ie - Build P2P IE for Probe Request
1477 * @p2p: P2P module context from p2p_init()
1478 * @ies: Buffer for writing P2P IE
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001479 * @dev_id: Device ID to search for or %NULL for any
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001480 */
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001481void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001482
1483/**
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001484 * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie
1485 * @p2p: P2P module context from p2p_init()
1486 * Returns: Number of octets that p2p_scan_ie() may add to the buffer
1487 */
1488size_t p2p_scan_ie_buf_len(struct p2p_data *p2p);
1489
1490/**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001491 * p2p_go_params - Generate random P2P group parameters
1492 * @p2p: P2P module context from p2p_init()
1493 * @params: Buffer for parameters
1494 * Returns: 0 on success, -1 on failure
1495 */
1496int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params);
1497
1498/**
1499 * p2p_get_group_capab - Get Group Capability from P2P IE data
1500 * @p2p_ie: P2P IE(s) contents
1501 * Returns: Group Capability
1502 */
1503u8 p2p_get_group_capab(const struct wpabuf *p2p_ie);
1504
1505/**
1506 * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection
1507 * @p2p_ie: P2P IE(s) contents
1508 * Returns: 0 if cross connection is allow, 1 if not
1509 */
1510int p2p_get_cross_connect_disallowed(const struct wpabuf *p2p_ie);
1511
1512/**
1513 * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data
1514 * @p2p_ie: P2P IE(s) contents
1515 * Returns: Pointer to P2P Device Address or %NULL if not included
1516 */
1517const u8 * p2p_get_go_dev_addr(const struct wpabuf *p2p_ie);
1518
1519/**
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001520 * p2p_get_peer_info - Get P2P peer information
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001521 * @p2p: P2P module context from p2p_init()
1522 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1523 * @next: Whether to select the peer entry following the one indicated by addr
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001524 * Returns: Pointer to peer info or %NULL if not found
1525 */
1526const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
1527 const u8 *addr, int next);
1528
1529/**
1530 * p2p_get_peer_info_txt - Get internal P2P peer information in text format
1531 * @info: Pointer to P2P peer info from p2p_get_peer_info()
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001532 * @buf: Buffer for returning text
1533 * @buflen: Maximum buffer length
1534 * Returns: Number of octets written to the buffer or -1 on failure
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001535 *
1536 * Note: This information is internal to the P2P module and subject to change.
1537 * As such, this should not really be used by external programs for purposes
1538 * other than debugging.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001539 */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001540int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
1541 char *buf, size_t buflen);
1542
1543/**
1544 * p2p_peer_known - Check whether P2P peer is known
1545 * @p2p: P2P module context from p2p_init()
1546 * @addr: P2P Device Address of the peer
1547 * Returns: 1 if the specified device is in the P2P peer table or 0 if not
1548 */
1549int p2p_peer_known(struct p2p_data *p2p, const u8 *addr);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001550
1551/**
1552 * p2p_set_client_discoverability - Set client discoverability capability
1553 * @p2p: P2P module context from p2p_init()
1554 * @enabled: Whether client discoverability will be enabled
1555 *
1556 * This function can be used to disable (and re-enable) client discoverability.
1557 * This capability is enabled by default and should not be disabled in normal
1558 * use cases, i.e., this is mainly for testing purposes.
1559 */
1560void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled);
1561
1562/**
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001563 * p2p_set_managed_oper - Set managed P2P Device operations capability
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001564 * @p2p: P2P module context from p2p_init()
1565 * @enabled: Whether managed P2P Device operations will be enabled
1566 */
1567void p2p_set_managed_oper(struct p2p_data *p2p, int enabled);
1568
1569int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel);
1570
1571int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len);
1572
1573int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
1574 u8 *iface_addr);
1575int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
1576 u8 *dev_addr);
1577
1578void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr);
1579
1580/**
1581 * p2p_set_cross_connect - Set cross connection capability
1582 * @p2p: P2P module context from p2p_init()
1583 * @enabled: Whether cross connection will be enabled
1584 */
1585void p2p_set_cross_connect(struct p2p_data *p2p, int enabled);
1586
1587int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr);
1588
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001589/**
1590 * p2p_set_intra_bss_dist - Set intra BSS distribution
1591 * @p2p: P2P module context from p2p_init()
1592 * @enabled: Whether intra BSS distribution will be enabled
1593 */
1594void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled);
1595
1596/**
1597 * p2p_supported_freq - Check whether channel is supported for P2P
1598 * @p2p: P2P module context from p2p_init()
1599 * @freq: Channel frequency in MHz
1600 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
1601 */
1602int p2p_supported_freq(struct p2p_data *p2p, unsigned int freq);
1603
1604void p2p_update_channel_list(struct p2p_data *p2p, struct p2p_channels *chan);
1605
1606/**
1607 * p2p_set_best_channels - Update best channel information
1608 * @p2p: P2P module context from p2p_init()
1609 * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band
1610 * @freq_5: Frequency (MHz) of best channel in 5 GHz band
1611 * @freq_overall: Frequency (MHz) of best channel overall
1612 */
1613void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
1614 int freq_overall);
1615
1616const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p);
1617
1618/**
1619 * p2p_get_group_num_members - Get number of members in group
1620 * @group: P2P group context from p2p_group_init()
1621 * Returns: Number of members in the group
1622 */
1623unsigned int p2p_get_group_num_members(struct p2p_group *group);
1624
1625/**
1626 * p2p_iterate_group_members - Iterate group members
1627 * @group: P2P group context from p2p_group_init()
1628 * @next: iteration pointer, must be a pointer to a void * that is set to %NULL
1629 * on the first call and not modified later
1630 * Returns: A P2P Interface Address for each call and %NULL for no more members
1631 */
1632const u8 * p2p_iterate_group_members(struct p2p_group *group, void **next);
1633
1634/**
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001635 * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group
1636 * @group: P2P group context from p2p_group_init()
1637 * @addr: P2P Interface Address of the client
1638 * Returns: P2P Device Address of the client if found or %NULL if no match
1639 * found
1640 */
1641const u8 * p2p_group_get_dev_addr(struct p2p_group *group, const u8 *addr);
1642
1643/**
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001644 * p2p_group_is_client_connected - Check whether a specific client is connected
1645 * @group: P2P group context from p2p_group_init()
1646 * @addr: P2P Device Address of the client
1647 * Returns: 1 if client is connected or 0 if not
1648 */
1649int p2p_group_is_client_connected(struct p2p_group *group, const u8 *dev_addr);
1650
1651/**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001652 * p2p_get_peer_found - Get P2P peer info structure of a found peer
1653 * @p2p: P2P module context from p2p_init()
1654 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1655 * @next: Whether to select the peer entry following the one indicated by addr
1656 * Returns: The first P2P peer info available or %NULL if no such peer exists
1657 */
1658const struct p2p_peer_info *
1659p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next);
1660
1661/**
1662 * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions
1663 * @p2p: P2P module context from p2p_init()
1664 */
1665void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p);
1666
1667/**
1668 * p2p_add_wps_vendor_extension - Add a WPS vendor extension
1669 * @p2p: P2P module context from p2p_init()
1670 * @vendor_ext: The vendor extensions to add
1671 * Returns: 0 on success, -1 on failure
1672 *
1673 * The wpabuf structures in the array are owned by the P2P
1674 * module after this call.
1675 */
1676int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
1677 const struct wpabuf *vendor_ext);
1678
Jouni Malinen75ecf522011-06-27 15:19:46 -07001679/**
1680 * p2p_set_oper_channel - Set the P2P operating channel
1681 * @p2p: P2P module context from p2p_init()
1682 * @op_reg_class: Operating regulatory class to set
1683 * @op_channel: operating channel to set
1684 * @cfg_op_channel : Whether op_channel is hardcoded in configuration
1685 * Returns: 0 on success, -1 on failure
1686 */
1687int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
1688 int cfg_op_channel);
1689
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001690/**
Dmitry Shmidt04949592012-07-19 12:16:46 -07001691 * p2p_set_pref_chan - Set P2P preferred channel list
1692 * @p2p: P2P module context from p2p_init()
1693 * @num_pref_chan: Number of entries in pref_chan list
1694 * @pref_chan: Preferred channels or %NULL to remove preferences
1695 * Returns: 0 on success, -1 on failure
1696 */
1697int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan,
1698 const struct p2p_channel *pref_chan);
1699
1700/**
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001701 * p2p_in_progress - Check whether a P2P operation is progress
1702 * @p2p: P2P module context from p2p_init()
1703 * Returns: 0 if P2P module is idle or 1 if an operation is in progress
1704 */
1705int p2p_in_progress(struct p2p_data *p2p);
1706
1707#ifdef ANDROID_P2P
1708/**
Dmitry Shmidt2fb777c2012-05-02 12:29:53 -07001709 * p2p_search_in_progress - Check whether a P2P SEARCH is in progress
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001710 * @p2p: P2P module context from p2p_init()
1711 * Returns: 0 if P2P module is idle or 1 if an operation is in progress
1712 */
1713int p2p_search_in_progress(struct p2p_data *p2p);
Dmitry Shmidt2fb777c2012-05-02 12:29:53 -07001714
1715/**
1716 * p2p_search_pending - Check whether there is a deferred P2P SEARCH
1717 * @p2p: P2P module context from p2p_init()
1718 * Returns: 0 if there is no deferred P2P search or 1 if there is one
1719 */
1720int p2p_search_pending(struct p2p_data *p2p);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001721#endif
1722
1723/**
1724 * p2p_other_scan_completed - Notify completion of non-P2P scan
1725 * @p2p: P2P module context from p2p_init()
1726 * Returns: 0 if P2P module is idle or 1 if an operation was started
1727 */
1728int p2p_other_scan_completed(struct p2p_data *p2p);
1729
1730const char * p2p_wps_method_text(enum p2p_wps_method method);
1731
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001732#endif /* P2P_H */