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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
Dmitry Shmidt61d9df32012-08-29 16:22:06 -070082 int ht40;
83
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070084 /**
85 * ssid - SSID of the group
86 */
87 u8 ssid[32];
88
89 /**
90 * ssid_len - Length of SSID in octets
91 */
92 size_t ssid_len;
93
94 /**
Dmitry Shmidtd5e49232012-12-03 15:08:10 -080095 * psk - WPA pre-shared key (256 bits) (GO only)
96 */
97 u8 psk[32];
98
99 /**
100 * psk_set - Whether PSK field is configured (GO only)
101 */
102 int psk_set;
103
104 /**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700105 * passphrase - WPA2-Personal passphrase for the group (GO only)
106 */
107 char passphrase[64];
108
109 /**
110 * peer_device_addr - P2P Device Address of the peer
111 */
112 u8 peer_device_addr[ETH_ALEN];
113
114 /**
115 * peer_interface_addr - P2P Interface Address of the peer
116 */
117 u8 peer_interface_addr[ETH_ALEN];
118
119 /**
120 * wps_method - WPS method to be used during provisioning
121 */
122 enum p2p_wps_method wps_method;
123
124#define P2P_MAX_CHANNELS 50
125
126 /**
127 * freq_list - Zero-terminated list of possible operational channels
128 */
129 int freq_list[P2P_MAX_CHANNELS];
130
131 /**
132 * persistent_group - Whether the group should be made persistent
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800133 * 0 = not persistent
134 * 1 = persistent group without persistent reconnect
135 * 2 = persistent group with persistent reconnect
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700136 */
137 int persistent_group;
138
139 /**
140 * peer_config_timeout - Peer configuration timeout (in 10 msec units)
141 */
142 unsigned int peer_config_timeout;
143};
144
145struct p2p_data;
146
147enum p2p_scan_type {
148 P2P_SCAN_SOCIAL,
149 P2P_SCAN_FULL,
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -0700150 P2P_SCAN_SPECIFIC,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700151 P2P_SCAN_SOCIAL_PLUS_ONE
152};
153
154#define P2P_MAX_WPS_VENDOR_EXT 10
155
156/**
157 * struct p2p_peer_info - P2P peer information
158 */
159struct p2p_peer_info {
160 /**
161 * p2p_device_addr - P2P Device Address of the peer
162 */
163 u8 p2p_device_addr[ETH_ALEN];
164
165 /**
166 * pri_dev_type - Primary Device Type
167 */
168 u8 pri_dev_type[8];
169
170 /**
171 * device_name - Device Name (0..32 octets encoded in UTF-8)
172 */
173 char device_name[33];
174
175 /**
176 * manufacturer - Manufacturer (0..64 octets encoded in UTF-8)
177 */
178 char manufacturer[65];
179
180 /**
181 * model_name - Model Name (0..32 octets encoded in UTF-8)
182 */
183 char model_name[33];
184
185 /**
186 * model_number - Model Number (0..32 octets encoded in UTF-8)
187 */
188 char model_number[33];
189
190 /**
191 * serial_number - Serial Number (0..32 octets encoded in UTF-8)
192 */
193 char serial_number[33];
194
195 /**
Jouni Malinen75ecf522011-06-27 15:19:46 -0700196 * level - Signal level
197 */
198 int level;
199
200 /**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700201 * config_methods - WPS Configuration Methods
202 */
203 u16 config_methods;
204
205 /**
206 * dev_capab - Device Capabilities
207 */
208 u8 dev_capab;
209
210 /**
211 * group_capab - Group Capabilities
212 */
213 u8 group_capab;
214
215 /**
216 * wps_sec_dev_type_list - WPS secondary device type list
217 *
218 * This list includes from 0 to 16 Secondary Device Types as indicated
219 * by wps_sec_dev_type_list_len (8 * number of types).
220 */
221 u8 wps_sec_dev_type_list[128];
222
223 /**
224 * wps_sec_dev_type_list_len - Length of secondary device type list
225 */
226 size_t wps_sec_dev_type_list_len;
227
228 struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT];
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700229
230 /**
231 * wfd_subelems - Wi-Fi Display subelements from WFD IE(s)
232 */
233 struct wpabuf *wfd_subelems;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700234};
235
Jouni Malinen75ecf522011-06-27 15:19:46 -0700236enum p2p_prov_disc_status {
237 P2P_PROV_DISC_SUCCESS,
238 P2P_PROV_DISC_TIMEOUT,
239 P2P_PROV_DISC_REJECTED,
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800240 P2P_PROV_DISC_TIMEOUT_JOIN,
Jouni Malinen75ecf522011-06-27 15:19:46 -0700241};
242
Dmitry Shmidt04949592012-07-19 12:16:46 -0700243struct p2p_channel {
244 u8 op_class;
245 u8 chan;
246};
247
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700248/**
249 * struct p2p_config - P2P configuration
250 *
251 * This configuration is provided to the P2P module during initialization with
252 * p2p_init().
253 */
254struct p2p_config {
255 /**
256 * country - Country code to use in P2P operations
257 */
258 char country[3];
259
260 /**
261 * reg_class - Regulatory class for own listen channel
262 */
263 u8 reg_class;
264
265 /**
266 * channel - Own listen channel
267 */
268 u8 channel;
269
270 /**
271 * Regulatory class for own operational channel
272 */
273 u8 op_reg_class;
274
275 /**
276 * op_channel - Own operational channel
277 */
278 u8 op_channel;
279
280 /**
281 * cfg_op_channel - Whether op_channel is hardcoded in configuration
282 */
283 u8 cfg_op_channel;
284
285 /**
286 * channels - Own supported regulatory classes and channels
287 *
288 * List of supposerted channels per regulatory class. The regulatory
289 * classes are defined in IEEE Std 802.11-2007 Annex J and the
290 * numbering of the clases depends on the configured country code.
291 */
292 struct p2p_channels channels;
293
294 /**
Dmitry Shmidt04949592012-07-19 12:16:46 -0700295 * num_pref_chan - Number of pref_chan entries
296 */
297 unsigned int num_pref_chan;
298
299 /**
300 * pref_chan - Preferred channels for GO Negotiation
301 */
302 struct p2p_channel *pref_chan;
303
304 /**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700305 * pri_dev_type - Primary Device Type (see WPS)
306 */
307 u8 pri_dev_type[8];
308
309 /**
310 * P2P_SEC_DEVICE_TYPES - Maximum number of secondary device types
311 */
312#define P2P_SEC_DEVICE_TYPES 5
313
314 /**
315 * sec_dev_type - Optional secondary device types
316 */
317 u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8];
318
319 /**
320 * num_sec_dev_types - Number of sec_dev_type entries
321 */
322 size_t num_sec_dev_types;
323
324 /**
325 * dev_addr - P2P Device Address
326 */
327 u8 dev_addr[ETH_ALEN];
328
329 /**
330 * dev_name - Device Name
331 */
332 char *dev_name;
333
334 char *manufacturer;
335 char *model_name;
336 char *model_number;
337 char *serial_number;
338
339 u8 uuid[16];
340 u16 config_methods;
341
342 /**
343 * concurrent_operations - Whether concurrent operations are supported
344 */
345 int concurrent_operations;
346
347 /**
348 * max_peers - Maximum number of discovered peers to remember
349 *
350 * If more peers are discovered, older entries will be removed to make
351 * room for the new ones.
352 */
353 size_t max_peers;
354
355 /**
356 * p2p_intra_bss - Intra BSS communication is supported
357 */
358 int p2p_intra_bss;
359
360 /**
361 * ssid_postfix - Postfix data to add to the SSID
362 *
363 * This data will be added to the end of the SSID after the
364 * DIRECT-<random two octets> prefix.
365 */
366 u8 ssid_postfix[32 - 9];
367
368 /**
369 * ssid_postfix_len - Length of the ssid_postfix data
370 */
371 size_t ssid_postfix_len;
372
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800373 /**
374 * max_listen - Maximum listen duration in ms
375 */
376 unsigned int max_listen;
377
Dmitry Shmidt04abaa92012-08-17 16:22:31 -0700378#ifdef ANDROID_P2P
379 enum p2p_concurrency_type {
380 P2P_NON_CONCURRENT,
381 P2P_SINGLE_CHANNEL_CONCURRENT,
382 P2P_MULTI_CHANNEL_CONCURRENT,
383 } p2p_concurrency;
384#endif
385
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700386 /**
387 * msg_ctx - Context to use with wpa_msg() calls
388 */
389 void *msg_ctx;
390
391 /**
392 * cb_ctx - Context to use with callback functions
393 */
394 void *cb_ctx;
395
396
397 /* Callbacks to request lower layer driver operations */
398
399 /**
400 * p2p_scan - Request a P2P scan/search
401 * @ctx: Callback context from cb_ctx
402 * @type: Scan type
403 * @freq: Specific frequency (MHz) to scan or 0 for no restriction
404 * @num_req_dev_types: Number of requested device types
405 * @req_dev_types: Array containing requested device types
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800406 * @dev_id: Device ID to search for or %NULL to find all devices
Dmitry Shmidt04949592012-07-19 12:16:46 -0700407 * @pw_id: Device Password ID
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700408 * Returns: 0 on success, -1 on failure
409 *
410 * This callback function is used to request a P2P scan or search
411 * operation to be completed. Type type argument specifies which type
412 * of scan is to be done. @P2P_SCAN_SOCIAL indicates that only the
413 * social channels (1, 6, 11) should be scanned. @P2P_SCAN_FULL
Dmitry Shmidt04949592012-07-19 12:16:46 -0700414 * indicates that all channels are to be scanned.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700415 * @P2P_SCAN_SOCIAL_PLUS_ONE request scan of all the social channels
416 * plus one extra channel specified by freq.
417 *
418 * The full scan is used for the initial scan to find group owners from
419 * all. The other types are used during search phase scan of the social
420 * channels (with potential variation if the Listen channel of the
421 * target peer is known or if other channels are scanned in steps).
422 *
423 * The scan results are returned after this call by calling
424 * p2p_scan_res_handler() for each scan result that has a P2P IE and
425 * then calling p2p_scan_res_handled() to indicate that all scan
426 * results have been indicated.
427 */
428 int (*p2p_scan)(void *ctx, enum p2p_scan_type type, int freq,
429 unsigned int num_req_dev_types,
Dmitry Shmidt04949592012-07-19 12:16:46 -0700430 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700431
432 /**
433 * send_probe_resp - Transmit a Probe Response frame
434 * @ctx: Callback context from cb_ctx
435 * @buf: Probe Response frame (including the header and body)
436 * Returns: 0 on success, -1 on failure
437 *
438 * This function is used to reply to Probe Request frames that were
439 * indicated with a call to p2p_probe_req_rx(). The response is to be
440 * sent on the same channel or to be dropped if the driver is not
441 * anymore listening to Probe Request frames.
442 *
443 * Alternatively, the responsibility for building the Probe Response
444 * frames in Listen state may be in another system component in which
445 * case this function need to be implemented (i.e., the function
446 * pointer can be %NULL). The WPS and P2P IEs to be added for Probe
447 * Response frames in such a case are available from the
448 * start_listen() callback. It should be noted that the received Probe
449 * Request frames must be indicated by calling p2p_probe_req_rx() even
450 * if this send_probe_resp() is not used.
451 */
452 int (*send_probe_resp)(void *ctx, const struct wpabuf *buf);
453
454 /**
455 * send_action - Transmit an Action frame
456 * @ctx: Callback context from cb_ctx
457 * @freq: Frequency in MHz for the channel on which to transmit
458 * @dst: Destination MAC address (Address 1)
459 * @src: Source MAC address (Address 2)
460 * @bssid: BSSID (Address 3)
461 * @buf: Frame body (starting from Category field)
462 * @len: Length of buf in octets
463 * @wait_time: How many msec to wait for a response frame
464 * Returns: 0 on success, -1 on failure
465 *
466 * The Action frame may not be transmitted immediately and the status
467 * of the transmission must be reported by calling
468 * p2p_send_action_cb() once the frame has either been transmitted or
469 * it has been dropped due to excessive retries or other failure to
470 * transmit.
471 */
472 int (*send_action)(void *ctx, unsigned int freq, const u8 *dst,
473 const u8 *src, const u8 *bssid, const u8 *buf,
474 size_t len, unsigned int wait_time);
475
476 /**
477 * send_action_done - Notify that Action frame sequence was completed
478 * @ctx: Callback context from cb_ctx
479 *
480 * This function is called when the Action frame sequence that was
481 * started with send_action() has been completed, i.e., when there is
482 * no need to wait for a response from the destination peer anymore.
483 */
484 void (*send_action_done)(void *ctx);
485
486 /**
487 * start_listen - Start Listen state
488 * @ctx: Callback context from cb_ctx
489 * @freq: Frequency of the listen channel in MHz
490 * @duration: Duration for the Listen state in milliseconds
491 * @probe_resp_ie: IE(s) to be added to Probe Response frames
492 * Returns: 0 on success, -1 on failure
493 *
494 * This Listen state may not start immediately since the driver may
495 * have other pending operations to complete first. Once the Listen
496 * state has started, p2p_listen_cb() must be called to notify the P2P
497 * module. Once the Listen state is stopped, p2p_listen_end() must be
498 * called to notify the P2P module that the driver is not in the Listen
499 * state anymore.
500 *
501 * If the send_probe_resp() is not used for generating the response,
502 * the IEs from probe_resp_ie need to be added to the end of the Probe
503 * Response frame body. If send_probe_resp() is used, the probe_resp_ie
504 * information can be ignored.
505 */
506 int (*start_listen)(void *ctx, unsigned int freq,
507 unsigned int duration,
508 const struct wpabuf *probe_resp_ie);
509 /**
510 * stop_listen - Stop Listen state
511 * @ctx: Callback context from cb_ctx
512 *
513 * This callback can be used to stop a Listen state operation that was
514 * previously requested with start_listen().
515 */
516 void (*stop_listen)(void *ctx);
517
518 /**
519 * get_noa - Get current Notice of Absence attribute payload
520 * @ctx: Callback context from cb_ctx
521 * @interface_addr: P2P Interface Address of the GO
522 * @buf: Buffer for returning NoA
523 * @buf_len: Buffer length in octets
524 * Returns: Number of octets used in buf, 0 to indicate no NoA is being
525 * advertized, or -1 on failure
526 *
527 * This function is used to fetch the current Notice of Absence
528 * attribute value from GO.
529 */
530 int (*get_noa)(void *ctx, const u8 *interface_addr, u8 *buf,
531 size_t buf_len);
532
533 /* Callbacks to notify events to upper layer management entity */
534
535 /**
536 * dev_found - Notification of a found P2P Device
537 * @ctx: Callback context from cb_ctx
538 * @addr: Source address of the message triggering this notification
539 * @info: P2P peer information
540 * @new_device: Inform if the peer is newly found
541 *
542 * This callback is used to notify that a new P2P Device has been
543 * found. This may happen, e.g., during Search state based on scan
544 * results or during Listen state based on receive Probe Request and
545 * Group Owner Negotiation Request.
546 */
547 void (*dev_found)(void *ctx, const u8 *addr,
548 const struct p2p_peer_info *info,
549 int new_device);
550
551 /**
552 * dev_lost - Notification of a lost P2P Device
553 * @ctx: Callback context from cb_ctx
554 * @dev_addr: P2P Device Address of the lost P2P Device
555 *
556 * This callback is used to notify that a P2P Device has been deleted.
557 */
558 void (*dev_lost)(void *ctx, const u8 *dev_addr);
559
560 /**
561 * go_neg_req_rx - Notification of a receive GO Negotiation Request
562 * @ctx: Callback context from cb_ctx
563 * @src: Source address of the message triggering this notification
564 * @dev_passwd_id: WPS Device Password ID
565 *
566 * This callback is used to notify that a P2P Device is requesting
567 * group owner negotiation with us, but we do not have all the
568 * necessary information to start GO Negotiation. This indicates that
569 * the local user has not authorized the connection yet by providing a
570 * PIN or PBC button press. This information can be provided with a
571 * call to p2p_connect().
572 */
573 void (*go_neg_req_rx)(void *ctx, const u8 *src, u16 dev_passwd_id);
574
575 /**
576 * go_neg_completed - Notification of GO Negotiation results
577 * @ctx: Callback context from cb_ctx
578 * @res: GO Negotiation results
579 *
580 * This callback is used to notify that Group Owner Negotiation has
581 * been completed. Non-zero struct p2p_go_neg_results::status indicates
582 * failed negotiation. In case of success, this function is responsible
583 * for creating a new group interface (or using the existing interface
584 * depending on driver features), setting up the group interface in
585 * proper mode based on struct p2p_go_neg_results::role_go and
586 * initializing WPS provisioning either as a Registrar (if GO) or as an
587 * Enrollee. Successful WPS provisioning must be indicated by calling
588 * p2p_wps_success_cb(). The callee is responsible for timing out group
589 * formation if WPS provisioning cannot be completed successfully
590 * within 15 seconds.
591 */
592 void (*go_neg_completed)(void *ctx, struct p2p_go_neg_results *res);
593
594 /**
595 * sd_request - Callback on Service Discovery Request
596 * @ctx: Callback context from cb_ctx
597 * @freq: Frequency (in MHz) of the channel
598 * @sa: Source address of the request
599 * @dialog_token: Dialog token
600 * @update_indic: Service Update Indicator from the source of request
601 * @tlvs: P2P Service Request TLV(s)
602 * @tlvs_len: Length of tlvs buffer in octets
603 *
604 * This callback is used to indicate reception of a service discovery
605 * request. Response to the query must be indicated by calling
606 * p2p_sd_response() with the context information from the arguments to
607 * this callback function.
608 *
609 * This callback handler can be set to %NULL to indicate that service
610 * discovery is not supported.
611 */
612 void (*sd_request)(void *ctx, int freq, const u8 *sa, u8 dialog_token,
613 u16 update_indic, const u8 *tlvs, size_t tlvs_len);
614
615 /**
616 * sd_response - Callback on Service Discovery Response
617 * @ctx: Callback context from cb_ctx
618 * @sa: Source address of the request
619 * @update_indic: Service Update Indicator from the source of response
620 * @tlvs: P2P Service Response TLV(s)
621 * @tlvs_len: Length of tlvs buffer in octets
622 *
623 * This callback is used to indicate reception of a service discovery
624 * response. This callback handler can be set to %NULL if no service
625 * discovery requests are used. The information provided with this call
626 * is replies to the queries scheduled with p2p_sd_request().
627 */
628 void (*sd_response)(void *ctx, const u8 *sa, u16 update_indic,
629 const u8 *tlvs, size_t tlvs_len);
630
631 /**
632 * prov_disc_req - Callback on Provisiong Discovery Request
633 * @ctx: Callback context from cb_ctx
634 * @peer: Source address of the request
635 * @config_methods: Requested WPS Config Method
636 * @dev_addr: P2P Device Address of the found P2P Device
637 * @pri_dev_type: Primary Device Type
638 * @dev_name: Device Name
639 * @supp_config_methods: Supported configuration Methods
640 * @dev_capab: Device Capabilities
641 * @group_capab: Group Capabilities
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800642 * @group_id: P2P Group ID (or %NULL if not included)
643 * @group_id_len: Length of P2P Group ID
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700644 *
645 * This callback is used to indicate reception of a Provision Discovery
646 * Request frame that the P2P module accepted.
647 */
648 void (*prov_disc_req)(void *ctx, const u8 *peer, u16 config_methods,
649 const u8 *dev_addr, const u8 *pri_dev_type,
650 const char *dev_name, u16 supp_config_methods,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800651 u8 dev_capab, u8 group_capab,
652 const u8 *group_id, size_t group_id_len);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700653
654 /**
655 * prov_disc_resp - Callback on Provisiong Discovery Response
656 * @ctx: Callback context from cb_ctx
657 * @peer: Source address of the response
658 * @config_methods: Value from p2p_prov_disc_req() or 0 on failure
659 *
660 * This callback is used to indicate reception of a Provision Discovery
661 * Response frame for a pending request scheduled with
662 * p2p_prov_disc_req(). This callback handler can be set to %NULL if
663 * provision discovery is not used.
664 */
665 void (*prov_disc_resp)(void *ctx, const u8 *peer, u16 config_methods);
666
667 /**
Jouni Malinen75ecf522011-06-27 15:19:46 -0700668 * prov_disc_fail - Callback on Provision Discovery failure
669 * @ctx: Callback context from cb_ctx
670 * @peer: Source address of the response
671 * @status: Cause of failure, will not be %P2P_PROV_DISC_SUCCESS
672 *
673 * This callback is used to indicate either a failure or no response
674 * to an earlier provision discovery request.
675 *
676 * This callback handler can be set to %NULL if provision discovery
677 * is not used or failures do not need to be indicated.
678 */
679 void (*prov_disc_fail)(void *ctx, const u8 *peer,
680 enum p2p_prov_disc_status status);
681
682 /**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700683 * invitation_process - Optional callback for processing Invitations
684 * @ctx: Callback context from cb_ctx
685 * @sa: Source address of the Invitation Request
686 * @bssid: P2P Group BSSID from the request or %NULL if not included
687 * @go_dev_addr: GO Device Address from P2P Group ID
688 * @ssid: SSID from P2P Group ID
689 * @ssid_len: Length of ssid buffer in octets
690 * @go: Variable for returning whether the local end is GO in the group
691 * @group_bssid: Buffer for returning P2P Group BSSID (if local end GO)
692 * @force_freq: Variable for returning forced frequency for the group
693 * @persistent_group: Whether this is an invitation to reinvoke a
694 * persistent group (instead of invitation to join an active
695 * group)
696 * Returns: Status code (P2P_SC_*)
697 *
698 * This optional callback can be used to implement persistent reconnect
699 * by allowing automatic restarting of persistent groups without user
700 * interaction. If this callback is not implemented (i.e., is %NULL),
701 * the received Invitation Request frames are replied with
702 * %P2P_SC_REQ_RECEIVED status and indicated to upper layer with the
703 * invitation_result() callback.
704 *
705 * If the requested parameters are acceptable and the group is known,
706 * %P2P_SC_SUCCESS may be returned. If the requested group is unknown,
707 * %P2P_SC_FAIL_UNKNOWN_GROUP should be returned. %P2P_SC_REQ_RECEIVED
708 * can be returned if there is not enough data to provide immediate
709 * response, i.e., if some sort of user interaction is needed. The
710 * invitation_received() callback will be called in that case
711 * immediately after this call.
712 */
713 u8 (*invitation_process)(void *ctx, const u8 *sa, const u8 *bssid,
714 const u8 *go_dev_addr, const u8 *ssid,
715 size_t ssid_len, int *go, u8 *group_bssid,
716 int *force_freq, int persistent_group);
717
718 /**
719 * invitation_received - Callback on Invitation Request RX
720 * @ctx: Callback context from cb_ctx
721 * @sa: Source address of the Invitation Request
722 * @bssid: P2P Group BSSID or %NULL if not received
723 * @ssid: SSID of the group
724 * @ssid_len: Length of ssid in octets
725 * @go_dev_addr: GO Device Address
726 * @status: Response Status
727 * @op_freq: Operational frequency for the group
728 *
729 * This callback is used to indicate sending of an Invitation Response
730 * for a received Invitation Request. If status == 0 (success), the
731 * upper layer code is responsible for starting the group. status == 1
732 * indicates need to get user authorization for the group. Other status
733 * values indicate that the invitation request was rejected.
734 */
735 void (*invitation_received)(void *ctx, const u8 *sa, const u8 *bssid,
736 const u8 *ssid, size_t ssid_len,
737 const u8 *go_dev_addr, u8 status,
738 int op_freq);
739
740 /**
741 * invitation_result - Callback on Invitation result
742 * @ctx: Callback context from cb_ctx
743 * @status: Negotiation result (Status Code)
744 * @bssid: P2P Group BSSID or %NULL if not received
Dmitry Shmidt7a5e50a2013-03-05 12:37:16 -0800745 * @channels: Available operating channels for the group
Dmitry Shmidt700a1372013-03-15 14:14:44 -0700746 * @addr: Peer address
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700747 *
748 * This callback is used to indicate result of an Invitation procedure
749 * started with a call to p2p_invite(). The indicated status code is
750 * the value received from the peer in Invitation Response with 0
751 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a
752 * local failure in transmitting the Invitation Request.
753 */
Dmitry Shmidt7a5e50a2013-03-05 12:37:16 -0800754 void (*invitation_result)(void *ctx, int status, const u8 *bssid,
Dmitry Shmidt700a1372013-03-15 14:14:44 -0700755 const struct p2p_channels *channels,
756 const u8 *addr);
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800757
758 /**
759 * go_connected - Check whether we are connected to a GO
760 * @ctx: Callback context from cb_ctx
761 * @dev_addr: P2P Device Address of a GO
762 * Returns: 1 if we are connected as a P2P client to the specified GO
763 * or 0 if not.
764 */
765 int (*go_connected)(void *ctx, const u8 *dev_addr);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700766};
767
768
769/* P2P module initialization/deinitialization */
770
771/**
772 * p2p_init - Initialize P2P module
773 * @cfg: P2P module configuration
774 * Returns: Pointer to private data or %NULL on failure
775 *
776 * This function is used to initialize global P2P module context (one per
777 * device). The P2P module will keep a copy of the configuration data, so the
778 * caller does not need to maintain this structure. However, the callback
779 * functions and the context parameters to them must be kept available until
780 * the P2P module is deinitialized with p2p_deinit().
781 */
782struct p2p_data * p2p_init(const struct p2p_config *cfg);
783
784/**
785 * p2p_deinit - Deinitialize P2P module
786 * @p2p: P2P module context from p2p_init()
787 */
788void p2p_deinit(struct p2p_data *p2p);
789
790/**
791 * p2p_flush - Flush P2P module state
792 * @p2p: P2P module context from p2p_init()
793 *
794 * This command removes the P2P module state like peer device entries.
795 */
796void p2p_flush(struct p2p_data *p2p);
797
798/**
799 * p2p_unauthorize - Unauthorize the specified peer device
800 * @p2p: P2P module context from p2p_init()
801 * @addr: P2P peer entry to be unauthorized
802 * Returns: 0 on success, -1 on failure
803 *
804 * This command removes any connection authorization from the specified P2P
805 * peer device address. This can be used, e.g., to cancel effect of a previous
806 * p2p_authorize() or p2p_connect() call that has not yet resulted in completed
807 * GO Negotiation.
808 */
809int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr);
810
811/**
812 * p2p_set_dev_name - Set device name
813 * @p2p: P2P module context from p2p_init()
814 * Returns: 0 on success, -1 on failure
815 *
816 * This function can be used to update the P2P module configuration with
817 * information that was not available at the time of the p2p_init() call.
818 */
819int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name);
820
821int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer);
822int p2p_set_model_name(struct p2p_data *p2p, const char *model_name);
823int p2p_set_model_number(struct p2p_data *p2p, const char *model_number);
824int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number);
825
826void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods);
827void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid);
828
829/**
830 * p2p_set_pri_dev_type - Set primary device type
831 * @p2p: P2P module context from p2p_init()
832 * Returns: 0 on success, -1 on failure
833 *
834 * This function can be used to update the P2P module configuration with
835 * information that was not available at the time of the p2p_init() call.
836 */
837int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type);
838
839/**
840 * p2p_set_sec_dev_types - Set secondary device types
841 * @p2p: P2P module context from p2p_init()
842 * Returns: 0 on success, -1 on failure
843 *
844 * This function can be used to update the P2P module configuration with
845 * information that was not available at the time of the p2p_init() call.
846 */
847int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
848 size_t num_dev_types);
849
850int p2p_set_country(struct p2p_data *p2p, const char *country);
851
852
853/* Commands from upper layer management entity */
854
855enum p2p_discovery_type {
856 P2P_FIND_START_WITH_FULL,
857 P2P_FIND_ONLY_SOCIAL,
858 P2P_FIND_PROGRESSIVE
859};
860
861/**
862 * p2p_find - Start P2P Find (Device Discovery)
863 * @p2p: P2P module context from p2p_init()
864 * @timeout: Timeout for find operation in seconds or 0 for no timeout
865 * @type: Device Discovery type
866 * @num_req_dev_types: Number of requested device types
867 * @req_dev_types: Requested device types array, must be an array
868 * containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no
869 * requested device types.
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800870 * @dev_id: Device ID to search for or %NULL to find all devices
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700871 * @search_delay: Extra delay in milliseconds between search iterations
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700872 * Returns: 0 on success, -1 on failure
873 */
874int p2p_find(struct p2p_data *p2p, unsigned int timeout,
875 enum p2p_discovery_type type,
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800876 unsigned int num_req_dev_types, const u8 *req_dev_types,
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700877 const u8 *dev_id, unsigned int search_delay);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700878
879/**
880 * p2p_stop_find - Stop P2P Find (Device Discovery)
881 * @p2p: P2P module context from p2p_init()
882 */
883void p2p_stop_find(struct p2p_data *p2p);
884
885/**
886 * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq
887 * @p2p: P2P module context from p2p_init()
888 * @freq: Frequency in MHz for next operation
889 *
890 * This is like p2p_stop_find(), but Listen state is not stopped if we are
891 * already on the same frequency.
892 */
893void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq);
894
895/**
896 * p2p_listen - Start P2P Listen state for specified duration
897 * @p2p: P2P module context from p2p_init()
898 * @timeout: Listen state duration in milliseconds
899 * Returns: 0 on success, -1 on failure
900 *
901 * This function can be used to request the P2P module to keep the device
902 * discoverable on the listen channel for an extended set of time. At least in
903 * its current form, this is mainly used for testing purposes and may not be of
904 * much use for normal P2P operations.
905 */
906int p2p_listen(struct p2p_data *p2p, unsigned int timeout);
907
908/**
909 * p2p_connect - Start P2P group formation (GO negotiation)
910 * @p2p: P2P module context from p2p_init()
911 * @peer_addr: MAC address of the peer P2P client
912 * @wps_method: WPS method to be used in provisioning
913 * @go_intent: Local GO intent value (1..15)
914 * @own_interface_addr: Intended interface address to use with the group
915 * @force_freq: The only allowed channel frequency in MHz or 0
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800916 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
917 * persistent group without persistent reconnect, 2 = persistent group with
918 * persistent reconnect)
Dmitry Shmidt04949592012-07-19 12:16:46 -0700919 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
920 * a new SSID
921 * @force_ssid_len: Length of $force_ssid buffer
922 * @pd_before_go_neg: Whether to send Provision Discovery prior to GO
923 * Negotiation as an interoperability workaround when initiating group
924 * formation
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800925 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if
926 * force_freq == 0)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700927 * Returns: 0 on success, -1 on failure
928 */
929int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
930 enum p2p_wps_method wps_method,
931 int go_intent, const u8 *own_interface_addr,
Dmitry Shmidt04949592012-07-19 12:16:46 -0700932 unsigned int force_freq, int persistent_group,
933 const u8 *force_ssid, size_t force_ssid_len,
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800934 int pd_before_go_neg, unsigned int pref_freq);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700935
936/**
937 * p2p_authorize - Authorize P2P group formation (GO negotiation)
938 * @p2p: P2P module context from p2p_init()
939 * @peer_addr: MAC address of the peer P2P client
940 * @wps_method: WPS method to be used in provisioning
941 * @go_intent: Local GO intent value (1..15)
942 * @own_interface_addr: Intended interface address to use with the group
943 * @force_freq: The only allowed channel frequency in MHz or 0
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800944 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
945 * persistent group without persistent reconnect, 2 = persistent group with
946 * persistent reconnect)
Dmitry Shmidt04949592012-07-19 12:16:46 -0700947 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
948 * a new SSID
949 * @force_ssid_len: Length of $force_ssid buffer
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800950 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if
951 * force_freq == 0)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700952 * Returns: 0 on success, -1 on failure
953 *
954 * This is like p2p_connect(), but the actual group negotiation is not
955 * initiated automatically, i.e., the other end is expected to do that.
956 */
957int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
958 enum p2p_wps_method wps_method,
959 int go_intent, const u8 *own_interface_addr,
Dmitry Shmidt04949592012-07-19 12:16:46 -0700960 unsigned int force_freq, int persistent_group,
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800961 const u8 *force_ssid, size_t force_ssid_len,
962 unsigned int pref_freq);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700963
964/**
965 * p2p_reject - Reject peer device (explicitly block connection attempts)
966 * @p2p: P2P module context from p2p_init()
967 * @peer_addr: MAC address of the peer P2P client
968 * Returns: 0 on success, -1 on failure
969 */
970int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr);
971
972/**
973 * p2p_prov_disc_req - Send Provision Discovery Request
974 * @p2p: P2P module context from p2p_init()
975 * @peer_addr: MAC address of the peer P2P client
976 * @config_methods: WPS Config Methods value (only one bit set)
977 * @join: Whether this is used by a client joining an active group
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800978 * @force_freq: Forced TX frequency for the frame (mainly for the join case)
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800979 * @user_initiated_pd: Flag to indicate if initiated by user or not
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700980 * Returns: 0 on success, -1 on failure
981 *
982 * This function can be used to request a discovered P2P peer to display a PIN
983 * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us
984 * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame
985 * is transmitted once immediately and if no response is received, the frame
986 * will be sent again whenever the target device is discovered during device
987 * dsicovery (start with a p2p_find() call). Response from the peer is
988 * indicated with the p2p_config::prov_disc_resp() callback.
989 */
990int p2p_prov_disc_req(struct p2p_data *p2p, const u8 *peer_addr,
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800991 u16 config_methods, int join, int force_freq,
992 int user_initiated_pd);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700993
994/**
995 * p2p_sd_request - Schedule a service discovery query
996 * @p2p: P2P module context from p2p_init()
997 * @dst: Destination peer or %NULL to apply for all peers
998 * @tlvs: P2P Service Query TLV(s)
999 * Returns: Reference to the query or %NULL on failure
1000 *
1001 * Response to the query is indicated with the p2p_config::sd_response()
1002 * callback.
1003 */
1004void * p2p_sd_request(struct p2p_data *p2p, const u8 *dst,
1005 const struct wpabuf *tlvs);
1006
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001007#ifdef CONFIG_WIFI_DISPLAY
1008void * p2p_sd_request_wfd(struct p2p_data *p2p, const u8 *dst,
1009 const struct wpabuf *tlvs);
1010#endif /* CONFIG_WIFI_DISPLAY */
1011
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001012/**
1013 * p2p_sd_cancel_request - Cancel a pending service discovery query
1014 * @p2p: P2P module context from p2p_init()
1015 * @req: Query reference from p2p_sd_request()
1016 * Returns: 0 if request for cancelled; -1 if not found
1017 */
1018int p2p_sd_cancel_request(struct p2p_data *p2p, void *req);
1019
1020/**
1021 * p2p_sd_response - Send response to a service discovery query
1022 * @p2p: P2P module context from p2p_init()
1023 * @freq: Frequency from p2p_config::sd_request() callback
1024 * @dst: Destination address from p2p_config::sd_request() callback
1025 * @dialog_token: Dialog token from p2p_config::sd_request() callback
1026 * @resp_tlvs: P2P Service Response TLV(s)
1027 *
1028 * This function is called as a response to the request indicated with
1029 * p2p_config::sd_request() callback.
1030 */
1031void p2p_sd_response(struct p2p_data *p2p, int freq, const u8 *dst,
1032 u8 dialog_token, const struct wpabuf *resp_tlvs);
1033
1034/**
1035 * p2p_sd_service_update - Indicate a change in local services
1036 * @p2p: P2P module context from p2p_init()
1037 *
1038 * This function needs to be called whenever there is a change in availability
1039 * of the local services. This will increment the Service Update Indicator
1040 * value which will be used in SD Request and Response frames.
1041 */
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -07001042#ifdef ANDROID_P2P
1043void p2p_sd_service_update(struct p2p_data *p2p, int action);
1044#else
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001045void p2p_sd_service_update(struct p2p_data *p2p);
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -07001046#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001047
1048
1049enum p2p_invite_role {
1050 P2P_INVITE_ROLE_GO,
1051 P2P_INVITE_ROLE_ACTIVE_GO,
1052 P2P_INVITE_ROLE_CLIENT
1053};
1054
1055/**
1056 * p2p_invite - Invite a P2P Device into a group
1057 * @p2p: P2P module context from p2p_init()
1058 * @peer: Device Address of the peer P2P Device
1059 * @role: Local role in the group
1060 * @bssid: Group BSSID or %NULL if not known
1061 * @ssid: Group SSID
1062 * @ssid_len: Length of ssid in octets
1063 * @force_freq: The only allowed channel frequency in MHz or 0
1064 * @go_dev_addr: Forced GO Device Address or %NULL if none
1065 * @persistent_group: Whether this is to reinvoke a persistent group
Dmitry Shmidt7a5e50a2013-03-05 12:37:16 -08001066 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if
1067 * force_freq == 0)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001068 * Returns: 0 on success, -1 on failure
1069 */
1070int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role,
1071 const u8 *bssid, const u8 *ssid, size_t ssid_len,
1072 unsigned int force_freq, const u8 *go_dev_addr,
Dmitry Shmidt7a5e50a2013-03-05 12:37:16 -08001073 int persistent_group, unsigned int pref_freq);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001074
1075/**
1076 * p2p_presence_req - Request GO presence
1077 * @p2p: P2P module context from p2p_init()
1078 * @go_interface_addr: GO P2P Interface Address
1079 * @own_interface_addr: Own P2P Interface Address for this group
1080 * @freq: Group operating frequence (in MHz)
1081 * @duration1: Preferred presence duration in microseconds
1082 * @interval1: Preferred presence interval in microseconds
1083 * @duration2: Acceptable presence duration in microseconds
1084 * @interval2: Acceptable presence interval in microseconds
1085 * Returns: 0 on success, -1 on failure
1086 *
1087 * If both duration and interval values are zero, the parameter pair is not
1088 * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0).
1089 */
1090int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
1091 const u8 *own_interface_addr, unsigned int freq,
1092 u32 duration1, u32 interval1, u32 duration2,
1093 u32 interval2);
1094
1095/**
1096 * p2p_ext_listen - Set Extended Listen Timing
1097 * @p2p: P2P module context from p2p_init()
1098 * @freq: Group operating frequence (in MHz)
1099 * @period: Availability period in milliseconds (1-65535; 0 to disable)
1100 * @interval: Availability interval in milliseconds (1-65535; 0 to disable)
1101 * Returns: 0 on success, -1 on failure
1102 *
1103 * This function can be used to enable or disable (period = interval = 0)
1104 * Extended Listen Timing. When enabled, the P2P Device will become
1105 * discoverable (go into Listen State) every @interval milliseconds for at
1106 * least @period milliseconds.
1107 */
1108int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
1109 unsigned int interval);
1110
1111/* Event notifications from upper layer management operations */
1112
1113/**
1114 * p2p_wps_success_cb - Report successfully completed WPS provisioning
1115 * @p2p: P2P module context from p2p_init()
1116 * @mac_addr: Peer address
1117 *
1118 * This function is used to report successfully completed WPS provisioning
1119 * during group formation in both GO/Registrar and client/Enrollee roles.
1120 */
1121void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr);
1122
1123/**
1124 * p2p_group_formation_failed - Report failed WPS provisioning
1125 * @p2p: P2P module context from p2p_init()
1126 *
1127 * This function is used to report failed group formation. This can happen
1128 * either due to failed WPS provisioning or due to 15 second timeout during
1129 * the provisioning phase.
1130 */
1131void p2p_group_formation_failed(struct p2p_data *p2p);
1132
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001133/**
1134 * p2p_get_provisioning_info - Get any stored provisioning info
1135 * @p2p: P2P module context from p2p_init()
1136 * @addr: Peer P2P Device Address
1137 * Returns: WPS provisioning information (WPS config method) or 0 if no
1138 * information is available
1139 *
1140 * This function is used to retrieve stored WPS provisioning info for the given
1141 * peer.
1142 */
1143u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr);
1144
1145/**
1146 * p2p_clear_provisioning_info - Clear any stored provisioning info
1147 * @p2p: P2P module context from p2p_init()
Dmitry Shmidt04949592012-07-19 12:16:46 -07001148 * @iface_addr: Peer P2P Device Address
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001149 *
1150 * This function is used to clear stored WPS provisioning info for the given
1151 * peer.
1152 */
Dmitry Shmidt04949592012-07-19 12:16:46 -07001153void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001154
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001155
1156/* Event notifications from lower layer driver operations */
1157
1158/**
Dmitry Shmidt04949592012-07-19 12:16:46 -07001159 * enum p2p_probe_req_status
1160 *
1161 * @P2P_PREQ_MALFORMED: frame was not well-formed
1162 * @P2P_PREQ_NOT_LISTEN: device isn't in listen state, frame ignored
1163 * @P2P_PREQ_NOT_P2P: frame was not a P2P probe request
1164 * @P2P_PREQ_P2P_NOT_PROCESSED: frame was P2P but wasn't processed
1165 * @P2P_PREQ_P2P_PROCESSED: frame has been processed by P2P
1166 */
1167enum p2p_probe_req_status {
1168 P2P_PREQ_MALFORMED,
1169 P2P_PREQ_NOT_LISTEN,
1170 P2P_PREQ_NOT_P2P,
1171 P2P_PREQ_NOT_PROCESSED,
1172 P2P_PREQ_PROCESSED
1173};
1174
1175/**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001176 * p2p_probe_req_rx - Report reception of a Probe Request frame
1177 * @p2p: P2P module context from p2p_init()
1178 * @addr: Source MAC address
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001179 * @dst: Destination MAC address if available or %NULL
1180 * @bssid: BSSID if available or %NULL
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001181 * @ie: Information elements from the Probe Request frame body
1182 * @ie_len: Length of ie buffer in octets
Dmitry Shmidt04949592012-07-19 12:16:46 -07001183 * Returns: value indicating the type and status of the probe request
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001184 */
Dmitry Shmidt04949592012-07-19 12:16:46 -07001185enum p2p_probe_req_status
1186p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
1187 const u8 *bssid, const u8 *ie, size_t ie_len);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001188
1189/**
1190 * p2p_rx_action - Report received Action frame
1191 * @p2p: P2P module context from p2p_init()
1192 * @da: Destination address of the received Action frame
1193 * @sa: Source address of the received Action frame
1194 * @bssid: Address 3 of the received Action frame
1195 * @category: Category of the received Action frame
1196 * @data: Action frame body after the Category field
1197 * @len: Length of the data buffer in octets
1198 * @freq: Frequency (in MHz) on which the frame was received
1199 */
1200void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1201 const u8 *bssid, u8 category,
1202 const u8 *data, size_t len, int freq);
1203
1204/**
1205 * p2p_scan_res_handler - Indicate a P2P scan results
1206 * @p2p: P2P module context from p2p_init()
1207 * @bssid: BSSID of the scan result
1208 * @freq: Frequency of the channel on which the device was found in MHz
Dmitry Shmidtf8623282013-02-20 14:34:59 -08001209 * @rx_time: Time when the result was received
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001210 * @level: Signal level (signal strength of the received Beacon/Probe Response
1211 * frame)
1212 * @ies: Pointer to IEs from the scan result
1213 * @ies_len: Length of the ies buffer
1214 * Returns: 0 to continue or 1 to stop scan result indication
1215 *
1216 * This function is called to indicate a scan result entry with P2P IE from a
1217 * scan requested with struct p2p_config::p2p_scan(). This can be called during
1218 * the actual scan process (i.e., whenever a new device is found) or as a
1219 * sequence of calls after the full scan has been completed. The former option
1220 * can result in optimized operations, but may not be supported by all
1221 * driver/firmware designs. The ies buffer need to include at least the P2P IE,
1222 * but it is recommended to include all IEs received from the device. The
1223 * caller does not need to check that the IEs contain a P2P IE before calling
1224 * this function since frames will be filtered internally if needed.
1225 *
1226 * This function will return 1 if it wants to stop scan result iteration (and
1227 * scan in general if it is still in progress). This is used to allow faster
1228 * start of a pending operation, e.g., to start a pending GO negotiation.
1229 */
1230int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
Dmitry Shmidtf8623282013-02-20 14:34:59 -08001231 struct os_time *rx_time, int level, const u8 *ies,
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001232 size_t ies_len);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001233
1234/**
1235 * p2p_scan_res_handled - Indicate end of scan results
1236 * @p2p: P2P module context from p2p_init()
1237 *
1238 * This function is called to indicate that all P2P scan results from a scan
1239 * have been reported with zero or more calls to p2p_scan_res_handler(). This
1240 * function must be called as a response to successful
1241 * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler()
1242 * calls stopped iteration.
1243 */
1244void p2p_scan_res_handled(struct p2p_data *p2p);
1245
1246enum p2p_send_action_result {
1247 P2P_SEND_ACTION_SUCCESS /* Frame was send and acknowledged */,
1248 P2P_SEND_ACTION_NO_ACK /* Frame was sent, but not acknowledged */,
1249 P2P_SEND_ACTION_FAILED /* Frame was not sent due to a failure */
1250};
1251
1252/**
1253 * p2p_send_action_cb - Notify TX status of an Action frame
1254 * @p2p: P2P module context from p2p_init()
1255 * @freq: Channel frequency in MHz
1256 * @dst: Destination MAC address (Address 1)
1257 * @src: Source MAC address (Address 2)
1258 * @bssid: BSSID (Address 3)
1259 * @result: Result of the transmission attempt
1260 *
1261 * This function is used to indicate the result of an Action frame transmission
1262 * that was requested with struct p2p_config::send_action() callback.
1263 */
1264void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
1265 const u8 *src, const u8 *bssid,
1266 enum p2p_send_action_result result);
1267
1268/**
1269 * p2p_listen_cb - Indicate the start of a requested Listen state
1270 * @p2p: P2P module context from p2p_init()
1271 * @freq: Listen channel frequency in MHz
1272 * @duration: Duration for the Listen state in milliseconds
1273 *
1274 * This function is used to indicate that a Listen state requested with
1275 * struct p2p_config::start_listen() callback has started.
1276 */
1277void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
1278 unsigned int duration);
1279
1280/**
1281 * p2p_listen_end - Indicate the end of a requested Listen state
1282 * @p2p: P2P module context from p2p_init()
1283 * @freq: Listen channel frequency in MHz
1284 * Returns: 0 if no operations were started, 1 if an operation was started
1285 *
1286 * This function is used to indicate that a Listen state requested with
1287 * struct p2p_config::start_listen() callback has ended.
1288 */
1289int p2p_listen_end(struct p2p_data *p2p, unsigned int freq);
1290
1291void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
1292 const u8 *ie, size_t ie_len);
1293
1294void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
1295 const u8 *ie, size_t ie_len);
1296
1297
1298/* Per-group P2P state for GO */
1299
1300struct p2p_group;
1301
1302/**
1303 * struct p2p_group_config - P2P group configuration
1304 *
1305 * This configuration is provided to the P2P module during initialization of
1306 * the per-group information with p2p_group_init().
1307 */
1308struct p2p_group_config {
1309 /**
1310 * persistent_group - Whether the group is persistent
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001311 * 0 = not a persistent group
1312 * 1 = persistent group without persistent reconnect
1313 * 2 = persistent group with persistent reconnect
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001314 */
1315 int persistent_group;
1316
1317 /**
1318 * interface_addr - P2P Interface Address of the group
1319 */
1320 u8 interface_addr[ETH_ALEN];
1321
1322 /**
1323 * max_clients - Maximum number of clients in the group
1324 */
1325 unsigned int max_clients;
1326
1327 /**
Dmitry Shmidt04949592012-07-19 12:16:46 -07001328 * ssid - Group SSID
1329 */
1330 u8 ssid[32];
1331
1332 /**
1333 * ssid_len - Length of SSID
1334 */
1335 size_t ssid_len;
1336
1337 /**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001338 * cb_ctx - Context to use with callback functions
1339 */
1340 void *cb_ctx;
1341
1342 /**
1343 * ie_update - Notification of IE update
1344 * @ctx: Callback context from cb_ctx
1345 * @beacon_ies: P2P IE for Beacon frames or %NULL if no change
1346 * @proberesp_ies: P2P Ie for Probe Response frames
1347 *
1348 * P2P module uses this callback function to notify whenever the P2P IE
1349 * in Beacon or Probe Response frames should be updated based on group
1350 * events.
1351 *
1352 * The callee is responsible for freeing the returned buffer(s) with
1353 * wpabuf_free().
1354 */
1355 void (*ie_update)(void *ctx, struct wpabuf *beacon_ies,
1356 struct wpabuf *proberesp_ies);
1357
1358 /**
1359 * idle_update - Notification of changes in group idle state
1360 * @ctx: Callback context from cb_ctx
1361 * @idle: Whether the group is idle (no associated stations)
1362 */
1363 void (*idle_update)(void *ctx, int idle);
1364};
1365
1366/**
1367 * p2p_group_init - Initialize P2P group
1368 * @p2p: P2P module context from p2p_init()
1369 * @config: P2P group configuration (will be freed by p2p_group_deinit())
1370 * Returns: Pointer to private data or %NULL on failure
1371 *
1372 * This function is used to initialize per-group P2P module context. Currently,
1373 * this is only used to manage GO functionality and P2P clients do not need to
1374 * create an instance of this per-group information.
1375 */
1376struct p2p_group * p2p_group_init(struct p2p_data *p2p,
1377 struct p2p_group_config *config);
1378
1379/**
1380 * p2p_group_deinit - Deinitialize P2P group
1381 * @group: P2P group context from p2p_group_init()
1382 */
1383void p2p_group_deinit(struct p2p_group *group);
1384
1385/**
1386 * p2p_group_notif_assoc - Notification of P2P client association with GO
1387 * @group: P2P group context from p2p_group_init()
1388 * @addr: Interface address of the P2P client
1389 * @ie: IEs from the (Re)association Request frame
1390 * @len: Length of the ie buffer in octets
1391 * Returns: 0 on success, -1 on failure
1392 */
1393int p2p_group_notif_assoc(struct p2p_group *group, const u8 *addr,
1394 const u8 *ie, size_t len);
1395
1396/**
1397 * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response
1398 * @group: P2P group context from p2p_group_init()
1399 * @status: Status value (P2P_SC_SUCCESS if association succeeded)
1400 * Returns: P2P IE for (Re)association Response or %NULL on failure
1401 *
1402 * The caller is responsible for freeing the returned buffer with
1403 * wpabuf_free().
1404 */
1405struct wpabuf * p2p_group_assoc_resp_ie(struct p2p_group *group, u8 status);
1406
1407/**
1408 * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO
1409 * @group: P2P group context from p2p_group_init()
1410 * @addr: Interface address of the P2P client
1411 */
1412void p2p_group_notif_disassoc(struct p2p_group *group, const u8 *addr);
1413
1414/**
1415 * p2p_group_notif_formation_done - Notification of completed group formation
1416 * @group: P2P group context from p2p_group_init()
1417 */
1418void p2p_group_notif_formation_done(struct p2p_group *group);
1419
1420/**
1421 * p2p_group_notif_noa - Notification of NoA change
1422 * @group: P2P group context from p2p_group_init()
1423 * @noa: Notice of Absence attribute payload, %NULL if none
1424 * @noa_len: Length of noa buffer in octets
1425 * Returns: 0 on success, -1 on failure
1426 *
1427 * Notify the P2P group management about a new NoA contents. This will be
1428 * inserted into the P2P IEs in Beacon and Probe Response frames with rest of
1429 * the group information.
1430 */
1431int p2p_group_notif_noa(struct p2p_group *group, const u8 *noa,
1432 size_t noa_len);
1433
1434/**
1435 * p2p_group_match_dev_type - Match device types in group with requested type
1436 * @group: P2P group context from p2p_group_init()
1437 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1438 * Returns: 1 on match, 0 on mismatch
1439 *
1440 * This function can be used to match the Requested Device Type attribute in
1441 * WPS IE with the device types of a group member for deciding whether a GO
1442 * should reply to a Probe Request frame. Match will be reported if the WPS IE
1443 * is not requested any specific device type.
1444 */
1445int p2p_group_match_dev_type(struct p2p_group *group, struct wpabuf *wps);
1446
1447/**
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001448 * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id
1449 */
1450int p2p_group_match_dev_id(struct p2p_group *group, struct wpabuf *p2p);
1451
1452/**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001453 * p2p_group_go_discover - Send GO Discoverability Request to a group client
1454 * @group: P2P group context from p2p_group_init()
1455 * Returns: 0 on success (frame scheduled); -1 if client was not found
1456 */
1457int p2p_group_go_discover(struct p2p_group *group, const u8 *dev_id,
1458 const u8 *searching_dev, int rx_freq);
1459
1460
1461/* Generic helper functions */
1462
1463/**
1464 * p2p_ie_text - Build text format description of P2P IE
1465 * @p2p_ie: P2P IE
1466 * @buf: Buffer for returning text
1467 * @end: Pointer to the end of the buf area
1468 * Returns: Number of octets written to the buffer or -1 on failure
1469 *
1470 * This function can be used to parse P2P IE contents into text format
1471 * field=value lines.
1472 */
1473int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end);
1474
1475/**
1476 * p2p_scan_result_text - Build text format description of P2P IE
1477 * @ies: Information elements from scan results
1478 * @ies_len: ies buffer length in octets
1479 * @buf: Buffer for returning text
1480 * @end: Pointer to the end of the buf area
1481 * Returns: Number of octets written to the buffer or -1 on failure
1482 *
1483 * This function can be used to parse P2P IE contents into text format
1484 * field=value lines.
1485 */
1486int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end);
1487
1488/**
Dmitry Shmidt04949592012-07-19 12:16:46 -07001489 * p2p_parse_dev_addr_in_p2p_ie - Parse P2P Device Address from a concatenated
1490 * P2P IE
1491 * @p2p_ie: P2P IE
1492 * @dev_addr: Buffer for returning P2P Device Address
1493 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1494 */
1495int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr);
1496
1497/**
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001498 * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s)
1499 * @ies: Information elements from scan results
1500 * @ies_len: ies buffer length in octets
1501 * @dev_addr: Buffer for returning P2P Device Address
1502 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1503 */
1504int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr);
1505
1506/**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001507 * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame
1508 * @p2p: P2P module context from p2p_init()
1509 * @bssid: BSSID
1510 * @buf: Buffer for writing the P2P IE
1511 * @len: Maximum buf length in octets
1512 * @p2p_group: Whether this is for association with a P2P GO
1513 * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none
1514 * Returns: Number of octets written into buf or -1 on failure
1515 */
1516int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
1517 size_t len, int p2p_group, struct wpabuf *p2p_ie);
1518
1519/**
1520 * p2p_scan_ie - Build P2P IE for Probe Request
1521 * @p2p: P2P module context from p2p_init()
1522 * @ies: Buffer for writing P2P IE
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001523 * @dev_id: Device ID to search for or %NULL for any
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001524 */
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001525void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001526
1527/**
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001528 * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie
1529 * @p2p: P2P module context from p2p_init()
1530 * Returns: Number of octets that p2p_scan_ie() may add to the buffer
1531 */
1532size_t p2p_scan_ie_buf_len(struct p2p_data *p2p);
1533
1534/**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001535 * p2p_go_params - Generate random P2P group parameters
1536 * @p2p: P2P module context from p2p_init()
1537 * @params: Buffer for parameters
1538 * Returns: 0 on success, -1 on failure
1539 */
1540int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params);
1541
1542/**
1543 * p2p_get_group_capab - Get Group Capability from P2P IE data
1544 * @p2p_ie: P2P IE(s) contents
1545 * Returns: Group Capability
1546 */
1547u8 p2p_get_group_capab(const struct wpabuf *p2p_ie);
1548
1549/**
1550 * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection
1551 * @p2p_ie: P2P IE(s) contents
1552 * Returns: 0 if cross connection is allow, 1 if not
1553 */
1554int p2p_get_cross_connect_disallowed(const struct wpabuf *p2p_ie);
1555
1556/**
1557 * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data
1558 * @p2p_ie: P2P IE(s) contents
1559 * Returns: Pointer to P2P Device Address or %NULL if not included
1560 */
1561const u8 * p2p_get_go_dev_addr(const struct wpabuf *p2p_ie);
1562
1563/**
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001564 * p2p_get_peer_info - Get P2P peer information
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001565 * @p2p: P2P module context from p2p_init()
1566 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1567 * @next: Whether to select the peer entry following the one indicated by addr
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001568 * Returns: Pointer to peer info or %NULL if not found
1569 */
1570const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
1571 const u8 *addr, int next);
1572
1573/**
1574 * p2p_get_peer_info_txt - Get internal P2P peer information in text format
1575 * @info: Pointer to P2P peer info from p2p_get_peer_info()
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001576 * @buf: Buffer for returning text
1577 * @buflen: Maximum buffer length
1578 * Returns: Number of octets written to the buffer or -1 on failure
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001579 *
1580 * Note: This information is internal to the P2P module and subject to change.
1581 * As such, this should not really be used by external programs for purposes
1582 * other than debugging.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001583 */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001584int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
1585 char *buf, size_t buflen);
1586
1587/**
1588 * p2p_peer_known - Check whether P2P peer is known
1589 * @p2p: P2P module context from p2p_init()
1590 * @addr: P2P Device Address of the peer
1591 * Returns: 1 if the specified device is in the P2P peer table or 0 if not
1592 */
1593int p2p_peer_known(struct p2p_data *p2p, const u8 *addr);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001594
1595/**
1596 * p2p_set_client_discoverability - Set client discoverability capability
1597 * @p2p: P2P module context from p2p_init()
1598 * @enabled: Whether client discoverability will be enabled
1599 *
1600 * This function can be used to disable (and re-enable) client discoverability.
1601 * This capability is enabled by default and should not be disabled in normal
1602 * use cases, i.e., this is mainly for testing purposes.
1603 */
1604void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled);
1605
1606/**
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001607 * p2p_set_managed_oper - Set managed P2P Device operations capability
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001608 * @p2p: P2P module context from p2p_init()
1609 * @enabled: Whether managed P2P Device operations will be enabled
1610 */
1611void p2p_set_managed_oper(struct p2p_data *p2p, int enabled);
1612
1613int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel);
1614
1615int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len);
1616
1617int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
1618 u8 *iface_addr);
1619int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
1620 u8 *dev_addr);
1621
1622void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr);
1623
1624/**
1625 * p2p_set_cross_connect - Set cross connection capability
1626 * @p2p: P2P module context from p2p_init()
1627 * @enabled: Whether cross connection will be enabled
1628 */
1629void p2p_set_cross_connect(struct p2p_data *p2p, int enabled);
1630
1631int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr);
1632
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001633/**
1634 * p2p_set_intra_bss_dist - Set intra BSS distribution
1635 * @p2p: P2P module context from p2p_init()
1636 * @enabled: Whether intra BSS distribution will be enabled
1637 */
1638void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled);
1639
Dmitry Shmidt7a5e50a2013-03-05 12:37:16 -08001640int p2p_channels_includes_freq(const struct p2p_channels *channels,
1641 unsigned int freq);
1642
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001643/**
1644 * p2p_supported_freq - Check whether channel is supported for P2P
1645 * @p2p: P2P module context from p2p_init()
1646 * @freq: Channel frequency in MHz
1647 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
1648 */
1649int p2p_supported_freq(struct p2p_data *p2p, unsigned int freq);
1650
Dmitry Shmidt44c95782013-05-17 09:51:35 -07001651/**
1652 * p2p_get_pref_freq - Get channel from preferred channel list
1653 * @p2p: P2P module context from p2p_init()
1654 * @channels: List of channels
1655 * Returns: Preferred channel
1656 */
1657unsigned int p2p_get_pref_freq(struct p2p_data *p2p,
1658 const struct p2p_channels *channels);
1659
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001660void p2p_update_channel_list(struct p2p_data *p2p, struct p2p_channels *chan);
1661
1662/**
1663 * p2p_set_best_channels - Update best channel information
1664 * @p2p: P2P module context from p2p_init()
1665 * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band
1666 * @freq_5: Frequency (MHz) of best channel in 5 GHz band
1667 * @freq_overall: Frequency (MHz) of best channel overall
1668 */
1669void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
1670 int freq_overall);
1671
Dmitry Shmidt700a1372013-03-15 14:14:44 -07001672/**
1673 * p2p_set_own_freq_preference - Set own preference for channel
1674 * @p2p: P2P module context from p2p_init()
1675 * @freq: Frequency (MHz) of the preferred channel or 0 if no preference
1676 *
1677 * This function can be used to set a preference on the operating channel based
1678 * on frequencies used on the other virtual interfaces that share the same
1679 * radio. If non-zero, this is used to try to avoid multi-channel concurrency.
1680 */
1681void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq);
1682
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001683const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p);
1684
1685/**
1686 * p2p_get_group_num_members - Get number of members in group
1687 * @group: P2P group context from p2p_group_init()
1688 * Returns: Number of members in the group
1689 */
1690unsigned int p2p_get_group_num_members(struct p2p_group *group);
1691
1692/**
1693 * p2p_iterate_group_members - Iterate group members
1694 * @group: P2P group context from p2p_group_init()
1695 * @next: iteration pointer, must be a pointer to a void * that is set to %NULL
1696 * on the first call and not modified later
1697 * Returns: A P2P Interface Address for each call and %NULL for no more members
1698 */
1699const u8 * p2p_iterate_group_members(struct p2p_group *group, void **next);
1700
1701/**
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001702 * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group
1703 * @group: P2P group context from p2p_group_init()
1704 * @addr: P2P Interface Address of the client
1705 * Returns: P2P Device Address of the client if found or %NULL if no match
1706 * found
1707 */
1708const u8 * p2p_group_get_dev_addr(struct p2p_group *group, const u8 *addr);
1709
1710/**
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001711 * p2p_group_is_client_connected - Check whether a specific client is connected
1712 * @group: P2P group context from p2p_group_init()
1713 * @addr: P2P Device Address of the client
1714 * Returns: 1 if client is connected or 0 if not
1715 */
1716int p2p_group_is_client_connected(struct p2p_group *group, const u8 *dev_addr);
1717
1718/**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001719 * p2p_get_peer_found - Get P2P peer info structure of a found peer
1720 * @p2p: P2P module context from p2p_init()
1721 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1722 * @next: Whether to select the peer entry following the one indicated by addr
1723 * Returns: The first P2P peer info available or %NULL if no such peer exists
1724 */
1725const struct p2p_peer_info *
1726p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next);
1727
1728/**
1729 * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions
1730 * @p2p: P2P module context from p2p_init()
1731 */
1732void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p);
1733
1734/**
1735 * p2p_add_wps_vendor_extension - Add a WPS vendor extension
1736 * @p2p: P2P module context from p2p_init()
1737 * @vendor_ext: The vendor extensions to add
1738 * Returns: 0 on success, -1 on failure
1739 *
1740 * The wpabuf structures in the array are owned by the P2P
1741 * module after this call.
1742 */
1743int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
1744 const struct wpabuf *vendor_ext);
1745
Jouni Malinen75ecf522011-06-27 15:19:46 -07001746/**
1747 * p2p_set_oper_channel - Set the P2P operating channel
1748 * @p2p: P2P module context from p2p_init()
1749 * @op_reg_class: Operating regulatory class to set
1750 * @op_channel: operating channel to set
1751 * @cfg_op_channel : Whether op_channel is hardcoded in configuration
1752 * Returns: 0 on success, -1 on failure
1753 */
1754int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
1755 int cfg_op_channel);
1756
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001757/**
Dmitry Shmidt04949592012-07-19 12:16:46 -07001758 * p2p_set_pref_chan - Set P2P preferred channel list
1759 * @p2p: P2P module context from p2p_init()
1760 * @num_pref_chan: Number of entries in pref_chan list
1761 * @pref_chan: Preferred channels or %NULL to remove preferences
1762 * Returns: 0 on success, -1 on failure
1763 */
1764int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan,
1765 const struct p2p_channel *pref_chan);
1766
1767/**
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001768 * p2p_in_progress - Check whether a P2P operation is progress
1769 * @p2p: P2P module context from p2p_init()
1770 * Returns: 0 if P2P module is idle or 1 if an operation is in progress
1771 */
1772int p2p_in_progress(struct p2p_data *p2p);
1773
1774#ifdef ANDROID_P2P
1775/**
Dmitry Shmidt2fb777c2012-05-02 12:29:53 -07001776 * p2p_search_in_progress - Check whether a P2P SEARCH is in progress
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001777 * @p2p: P2P module context from p2p_init()
1778 * Returns: 0 if P2P module is idle or 1 if an operation is in progress
1779 */
1780int p2p_search_in_progress(struct p2p_data *p2p);
Dmitry Shmidt2fb777c2012-05-02 12:29:53 -07001781
1782/**
1783 * p2p_search_pending - Check whether there is a deferred P2P SEARCH
1784 * @p2p: P2P module context from p2p_init()
1785 * Returns: 0 if there is no deferred P2P search or 1 if there is one
1786 */
1787int p2p_search_pending(struct p2p_data *p2p);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001788#endif
1789
1790/**
1791 * p2p_other_scan_completed - Notify completion of non-P2P scan
1792 * @p2p: P2P module context from p2p_init()
1793 * Returns: 0 if P2P module is idle or 1 if an operation was started
1794 */
1795int p2p_other_scan_completed(struct p2p_data *p2p);
1796
1797const char * p2p_wps_method_text(enum p2p_wps_method method);
1798
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001799/**
1800 * p2p_set_config_timeout - Set local config timeouts
1801 * @p2p: P2P module context from p2p_init()
1802 * @go_timeout: Time in 10 ms units it takes to start the GO mode
1803 * @client_timeout: Time in 10 ms units it takes to start the client mode
1804 */
1805void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout,
1806 u8 client_timeout);
1807
1808void p2p_increase_search_delay(struct p2p_data *p2p, unsigned int delay);
1809
1810int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie);
1811int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie);
1812int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie);
1813int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie);
1814int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie);
1815int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie);
1816int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie);
1817int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie);
1818int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem);
1819int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem);
1820int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p,
1821 const struct wpabuf *elem);
1822struct wpabuf * wifi_display_encaps(struct wpabuf *subelems);
1823
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001824/**
1825 * p2p_set_disc_int - Set min/max discoverable interval for p2p_find
1826 * @p2p: P2P module context from p2p_init()
1827 * @min_disc_int: minDiscoverableInterval (in units of 100 TU); default 1
1828 * @max_disc_int: maxDiscoverableInterval (in units of 100 TU); default 3
1829 * @max_disc_tu: Maximum number of TUs (1.024 ms) for discoverable interval; or
1830 * -1 not to limit
1831 * Returns: 0 on success, or -1 on failure
1832 *
1833 * This function can be used to configure minDiscoverableInterval and
1834 * maxDiscoverableInterval parameters for the Listen state during device
1835 * discovery (p2p_find). A random number of 100 TU units is picked for each
1836 * Listen state iteration from [min_disc_int,max_disc_int] range.
1837 *
1838 * max_disc_tu can be used to futher limit the discoverable duration. However,
1839 * it should be noted that use of this parameter is not recommended since it
1840 * would not be compliant with the P2P specification.
1841 */
1842int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int,
1843 int max_disc_tu);
1844
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001845#endif /* P2P_H */