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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
Dmitry Shmidtcf32e602014-01-28 10:57:39 -080012#include "wps/wps_defs.h"
13
Dmitry Shmidt216983b2015-02-06 10:50:36 -080014/* P2P ASP Setup Capability */
15#define P2PS_SETUP_NONE 0
16#define P2PS_SETUP_NEW BIT(0)
17#define P2PS_SETUP_CLIENT BIT(1)
18#define P2PS_SETUP_GROUP_OWNER BIT(2)
19
20#define P2PS_WILD_HASH_STR "org.wi-fi.wfds"
21#define P2PS_HASH_LEN 6
22#define P2P_MAX_QUERY_HASH 6
23
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070024/**
25 * P2P_MAX_REG_CLASSES - Maximum number of regulatory classes
26 */
27#define P2P_MAX_REG_CLASSES 10
28
29/**
30 * P2P_MAX_REG_CLASS_CHANNELS - Maximum number of channels per regulatory class
31 */
32#define P2P_MAX_REG_CLASS_CHANNELS 20
33
34/**
35 * struct p2p_channels - List of supported channels
36 */
37struct p2p_channels {
38 /**
39 * struct p2p_reg_class - Supported regulatory class
40 */
41 struct p2p_reg_class {
42 /**
43 * reg_class - Regulatory class (IEEE 802.11-2007, Annex J)
44 */
45 u8 reg_class;
46
47 /**
48 * channel - Supported channels
49 */
50 u8 channel[P2P_MAX_REG_CLASS_CHANNELS];
51
52 /**
53 * channels - Number of channel entries in use
54 */
55 size_t channels;
56 } reg_class[P2P_MAX_REG_CLASSES];
57
58 /**
59 * reg_classes - Number of reg_class entries in use
60 */
61 size_t reg_classes;
62};
63
64enum p2p_wps_method {
Dmitry Shmidt216983b2015-02-06 10:50:36 -080065 WPS_NOT_READY, WPS_PIN_DISPLAY, WPS_PIN_KEYPAD, WPS_PBC, WPS_NFC,
66 WPS_P2PS
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070067};
68
69/**
70 * struct p2p_go_neg_results - P2P Group Owner Negotiation results
71 */
72struct p2p_go_neg_results {
73 /**
74 * status - Negotiation result (Status Code)
75 *
76 * 0 (P2P_SC_SUCCESS) indicates success. Non-zero values indicate
77 * failed negotiation.
78 */
79 int status;
80
81 /**
82 * role_go - Whether local end is Group Owner
83 */
84 int role_go;
85
86 /**
87 * freq - Frequency of the group operational channel in MHz
88 */
89 int freq;
90
Dmitry Shmidt61d9df32012-08-29 16:22:06 -070091 int ht40;
92
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -070093 int vht;
94
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070095 /**
96 * ssid - SSID of the group
97 */
98 u8 ssid[32];
99
100 /**
101 * ssid_len - Length of SSID in octets
102 */
103 size_t ssid_len;
104
105 /**
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800106 * psk - WPA pre-shared key (256 bits) (GO only)
107 */
108 u8 psk[32];
109
110 /**
111 * psk_set - Whether PSK field is configured (GO only)
112 */
113 int psk_set;
114
115 /**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700116 * passphrase - WPA2-Personal passphrase for the group (GO only)
117 */
118 char passphrase[64];
119
120 /**
121 * peer_device_addr - P2P Device Address of the peer
122 */
123 u8 peer_device_addr[ETH_ALEN];
124
125 /**
126 * peer_interface_addr - P2P Interface Address of the peer
127 */
128 u8 peer_interface_addr[ETH_ALEN];
129
130 /**
131 * wps_method - WPS method to be used during provisioning
132 */
133 enum p2p_wps_method wps_method;
134
135#define P2P_MAX_CHANNELS 50
136
137 /**
138 * freq_list - Zero-terminated list of possible operational channels
139 */
140 int freq_list[P2P_MAX_CHANNELS];
141
142 /**
143 * persistent_group - Whether the group should be made persistent
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800144 * 0 = not persistent
145 * 1 = persistent group without persistent reconnect
146 * 2 = persistent group with persistent reconnect
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700147 */
148 int persistent_group;
149
150 /**
151 * peer_config_timeout - Peer configuration timeout (in 10 msec units)
152 */
153 unsigned int peer_config_timeout;
154};
155
Dmitry Shmidt216983b2015-02-06 10:50:36 -0800156struct p2ps_provision {
157 /**
158 * status - Remote returned provisioning status code
159 */
160 int status;
161
162 /**
163 * adv_id - P2PS Advertisement ID
164 */
165 u32 adv_id;
166
167 /**
168 * session_id - P2PS Session ID
169 */
170 u32 session_id;
171
172 /**
173 * method - WPS Method (to be) used to establish session
174 */
175 u16 method;
176
177 /**
178 * conncap - Connection Capabilities negotiated between P2P peers
179 */
180 u8 conncap;
181
182 /**
183 * role - Info about the roles to be used for this connection
184 */
185 u8 role;
186
187 /**
188 * session_mac - MAC address of the peer that started the session
189 */
190 u8 session_mac[ETH_ALEN];
191
192 /**
193 * adv_mac - MAC address of the peer advertised the service
194 */
195 u8 adv_mac[ETH_ALEN];
196
197 /**
198 * info - Vendor defined extra Provisioning information
199 */
200 char info[0];
201};
202
203struct p2ps_advertisement {
204 struct p2ps_advertisement *next;
205
206 /**
207 * svc_info - Pointer to (internal) Service defined information
208 */
209 char *svc_info;
210
211 /**
212 * id - P2PS Advertisement ID
213 */
214 u32 id;
215
216 /**
217 * config_methods - WPS Methods which are allowed for this service
218 */
219 u16 config_methods;
220
221 /**
222 * state - Current state of the service: 0 - Out Of Service, 1-255 Vendor defined
223 */
224 u8 state;
225
226 /**
227 * auto_accept - Automatically Accept provisioning request if possible.
228 */
229 u8 auto_accept;
230
231 /**
232 * hash - 6 octet Service Name has to match against incoming Probe Requests
233 */
234 u8 hash[P2PS_HASH_LEN];
235
236 /**
237 * svc_name - NULL Terminated UTF-8 Service Name, and svc_info storage
238 */
239 char svc_name[0];
240};
241
242
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700243struct p2p_data;
244
245enum p2p_scan_type {
246 P2P_SCAN_SOCIAL,
247 P2P_SCAN_FULL,
Dmitry Shmidt203eadb2015-03-05 14:16:04 -0800248 P2P_SCAN_SPECIFIC,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700249 P2P_SCAN_SOCIAL_PLUS_ONE
250};
251
252#define P2P_MAX_WPS_VENDOR_EXT 10
253
254/**
255 * struct p2p_peer_info - P2P peer information
256 */
257struct p2p_peer_info {
258 /**
259 * p2p_device_addr - P2P Device Address of the peer
260 */
261 u8 p2p_device_addr[ETH_ALEN];
262
263 /**
264 * pri_dev_type - Primary Device Type
265 */
266 u8 pri_dev_type[8];
267
268 /**
269 * device_name - Device Name (0..32 octets encoded in UTF-8)
270 */
271 char device_name[33];
272
273 /**
274 * manufacturer - Manufacturer (0..64 octets encoded in UTF-8)
275 */
276 char manufacturer[65];
277
278 /**
279 * model_name - Model Name (0..32 octets encoded in UTF-8)
280 */
281 char model_name[33];
282
283 /**
284 * model_number - Model Number (0..32 octets encoded in UTF-8)
285 */
286 char model_number[33];
287
288 /**
289 * serial_number - Serial Number (0..32 octets encoded in UTF-8)
290 */
291 char serial_number[33];
292
293 /**
Jouni Malinen75ecf522011-06-27 15:19:46 -0700294 * level - Signal level
295 */
296 int level;
297
298 /**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700299 * config_methods - WPS Configuration Methods
300 */
301 u16 config_methods;
302
303 /**
304 * dev_capab - Device Capabilities
305 */
306 u8 dev_capab;
307
308 /**
309 * group_capab - Group Capabilities
310 */
311 u8 group_capab;
312
313 /**
314 * wps_sec_dev_type_list - WPS secondary device type list
315 *
316 * This list includes from 0 to 16 Secondary Device Types as indicated
317 * by wps_sec_dev_type_list_len (8 * number of types).
318 */
319 u8 wps_sec_dev_type_list[128];
320
321 /**
322 * wps_sec_dev_type_list_len - Length of secondary device type list
323 */
324 size_t wps_sec_dev_type_list_len;
325
326 struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT];
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700327
328 /**
329 * wfd_subelems - Wi-Fi Display subelements from WFD IE(s)
330 */
331 struct wpabuf *wfd_subelems;
Dmitry Shmidt2e67f062014-07-16 09:55:28 -0700332
333 /**
334 * vendor_elems - Unrecognized vendor elements
335 *
336 * This buffer includes any other vendor element than P2P, WPS, and WFD
337 * IE(s) from the frame that was used to discover the peer.
338 */
339 struct wpabuf *vendor_elems;
Dmitry Shmidt216983b2015-02-06 10:50:36 -0800340
341 /**
342 * p2ps_instance - P2PS Application Service Info
343 */
344 struct wpabuf *p2ps_instance;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700345};
346
Jouni Malinen75ecf522011-06-27 15:19:46 -0700347enum p2p_prov_disc_status {
348 P2P_PROV_DISC_SUCCESS,
349 P2P_PROV_DISC_TIMEOUT,
350 P2P_PROV_DISC_REJECTED,
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800351 P2P_PROV_DISC_TIMEOUT_JOIN,
Dmitry Shmidt216983b2015-02-06 10:50:36 -0800352 P2P_PROV_DISC_INFO_UNAVAILABLE,
Jouni Malinen75ecf522011-06-27 15:19:46 -0700353};
354
Dmitry Shmidt04949592012-07-19 12:16:46 -0700355struct p2p_channel {
356 u8 op_class;
357 u8 chan;
358};
359
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700360/**
361 * struct p2p_config - P2P configuration
362 *
363 * This configuration is provided to the P2P module during initialization with
364 * p2p_init().
365 */
366struct p2p_config {
367 /**
368 * country - Country code to use in P2P operations
369 */
370 char country[3];
371
372 /**
373 * reg_class - Regulatory class for own listen channel
374 */
375 u8 reg_class;
376
377 /**
378 * channel - Own listen channel
379 */
380 u8 channel;
381
382 /**
Dmitry Shmidt43cb5782014-06-16 16:23:22 -0700383 * channel_forced - the listen channel was forced by configuration
384 * or by control interface and cannot be overridden
385 */
386 u8 channel_forced;
387
388 /**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700389 * Regulatory class for own operational channel
390 */
391 u8 op_reg_class;
392
393 /**
394 * op_channel - Own operational channel
395 */
396 u8 op_channel;
397
398 /**
399 * cfg_op_channel - Whether op_channel is hardcoded in configuration
400 */
401 u8 cfg_op_channel;
402
403 /**
404 * channels - Own supported regulatory classes and channels
405 *
406 * List of supposerted channels per regulatory class. The regulatory
407 * classes are defined in IEEE Std 802.11-2007 Annex J and the
408 * numbering of the clases depends on the configured country code.
409 */
410 struct p2p_channels channels;
411
412 /**
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -0700413 * cli_channels - Additional client channels
414 *
415 * This list of channels (if any) will be used when advertising local
416 * channels during GO Negotiation or Invitation for the cases where the
417 * local end may become the client. This may allow the peer to become a
418 * GO on additional channels if it supports these options. The main use
419 * case for this is to include passive-scan channels on devices that may
420 * not know their current location and have configured most channels to
421 * not allow initiation of radition (i.e., another device needs to take
422 * master responsibilities).
423 */
424 struct p2p_channels cli_channels;
425
426 /**
Dmitry Shmidt04949592012-07-19 12:16:46 -0700427 * num_pref_chan - Number of pref_chan entries
428 */
429 unsigned int num_pref_chan;
430
431 /**
432 * pref_chan - Preferred channels for GO Negotiation
433 */
434 struct p2p_channel *pref_chan;
435
436 /**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700437 * pri_dev_type - Primary Device Type (see WPS)
438 */
439 u8 pri_dev_type[8];
440
441 /**
442 * P2P_SEC_DEVICE_TYPES - Maximum number of secondary device types
443 */
444#define P2P_SEC_DEVICE_TYPES 5
445
446 /**
447 * sec_dev_type - Optional secondary device types
448 */
449 u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8];
450
451 /**
452 * num_sec_dev_types - Number of sec_dev_type entries
453 */
454 size_t num_sec_dev_types;
455
456 /**
457 * dev_addr - P2P Device Address
458 */
459 u8 dev_addr[ETH_ALEN];
460
461 /**
462 * dev_name - Device Name
463 */
464 char *dev_name;
465
466 char *manufacturer;
467 char *model_name;
468 char *model_number;
469 char *serial_number;
470
471 u8 uuid[16];
472 u16 config_methods;
473
474 /**
475 * concurrent_operations - Whether concurrent operations are supported
476 */
477 int concurrent_operations;
478
479 /**
480 * max_peers - Maximum number of discovered peers to remember
481 *
482 * If more peers are discovered, older entries will be removed to make
483 * room for the new ones.
484 */
485 size_t max_peers;
486
487 /**
488 * p2p_intra_bss - Intra BSS communication is supported
489 */
490 int p2p_intra_bss;
491
492 /**
493 * ssid_postfix - Postfix data to add to the SSID
494 *
495 * This data will be added to the end of the SSID after the
496 * DIRECT-<random two octets> prefix.
497 */
498 u8 ssid_postfix[32 - 9];
499
500 /**
501 * ssid_postfix_len - Length of the ssid_postfix data
502 */
503 size_t ssid_postfix_len;
504
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800505 /**
506 * max_listen - Maximum listen duration in ms
507 */
508 unsigned int max_listen;
509
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700510 /**
Dmitry Shmidt2271d3f2014-06-23 12:16:31 -0700511 * passphrase_len - Passphrase length (8..63)
512 *
513 * This parameter controls the length of the random passphrase that is
514 * generated at the GO.
515 */
516 unsigned int passphrase_len;
517
518 /**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700519 * cb_ctx - Context to use with callback functions
520 */
521 void *cb_ctx;
522
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700523 /**
524 * debug_print - Debug print
525 * @ctx: Callback context from cb_ctx
526 * @level: Debug verbosity level (MSG_*)
527 * @msg: Debug message
528 */
529 void (*debug_print)(void *ctx, int level, const char *msg);
530
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700531
532 /* Callbacks to request lower layer driver operations */
533
534 /**
535 * p2p_scan - Request a P2P scan/search
536 * @ctx: Callback context from cb_ctx
537 * @type: Scan type
538 * @freq: Specific frequency (MHz) to scan or 0 for no restriction
539 * @num_req_dev_types: Number of requested device types
540 * @req_dev_types: Array containing requested device types
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800541 * @dev_id: Device ID to search for or %NULL to find all devices
Dmitry Shmidt04949592012-07-19 12:16:46 -0700542 * @pw_id: Device Password ID
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700543 * Returns: 0 on success, -1 on failure
544 *
545 * This callback function is used to request a P2P scan or search
546 * operation to be completed. Type type argument specifies which type
547 * of scan is to be done. @P2P_SCAN_SOCIAL indicates that only the
548 * social channels (1, 6, 11) should be scanned. @P2P_SCAN_FULL
Dmitry Shmidt203eadb2015-03-05 14:16:04 -0800549 * indicates that all channels are to be scanned. @P2P_SCAN_SPECIFIC
550 * request a scan of a single channel specified by freq.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700551 * @P2P_SCAN_SOCIAL_PLUS_ONE request scan of all the social channels
552 * plus one extra channel specified by freq.
553 *
554 * The full scan is used for the initial scan to find group owners from
555 * all. The other types are used during search phase scan of the social
556 * channels (with potential variation if the Listen channel of the
557 * target peer is known or if other channels are scanned in steps).
558 *
559 * The scan results are returned after this call by calling
560 * p2p_scan_res_handler() for each scan result that has a P2P IE and
561 * then calling p2p_scan_res_handled() to indicate that all scan
562 * results have been indicated.
563 */
564 int (*p2p_scan)(void *ctx, enum p2p_scan_type type, int freq,
565 unsigned int num_req_dev_types,
Dmitry Shmidt04949592012-07-19 12:16:46 -0700566 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700567
568 /**
569 * send_probe_resp - Transmit a Probe Response frame
570 * @ctx: Callback context from cb_ctx
571 * @buf: Probe Response frame (including the header and body)
572 * Returns: 0 on success, -1 on failure
573 *
574 * This function is used to reply to Probe Request frames that were
575 * indicated with a call to p2p_probe_req_rx(). The response is to be
576 * sent on the same channel or to be dropped if the driver is not
577 * anymore listening to Probe Request frames.
578 *
579 * Alternatively, the responsibility for building the Probe Response
580 * frames in Listen state may be in another system component in which
581 * case this function need to be implemented (i.e., the function
582 * pointer can be %NULL). The WPS and P2P IEs to be added for Probe
583 * Response frames in such a case are available from the
584 * start_listen() callback. It should be noted that the received Probe
585 * Request frames must be indicated by calling p2p_probe_req_rx() even
586 * if this send_probe_resp() is not used.
587 */
588 int (*send_probe_resp)(void *ctx, const struct wpabuf *buf);
589
590 /**
591 * send_action - Transmit an Action frame
592 * @ctx: Callback context from cb_ctx
593 * @freq: Frequency in MHz for the channel on which to transmit
594 * @dst: Destination MAC address (Address 1)
595 * @src: Source MAC address (Address 2)
596 * @bssid: BSSID (Address 3)
597 * @buf: Frame body (starting from Category field)
598 * @len: Length of buf in octets
599 * @wait_time: How many msec to wait for a response frame
600 * Returns: 0 on success, -1 on failure
601 *
602 * The Action frame may not be transmitted immediately and the status
603 * of the transmission must be reported by calling
604 * p2p_send_action_cb() once the frame has either been transmitted or
605 * it has been dropped due to excessive retries or other failure to
606 * transmit.
607 */
608 int (*send_action)(void *ctx, unsigned int freq, const u8 *dst,
609 const u8 *src, const u8 *bssid, const u8 *buf,
610 size_t len, unsigned int wait_time);
611
612 /**
613 * send_action_done - Notify that Action frame sequence was completed
614 * @ctx: Callback context from cb_ctx
615 *
616 * This function is called when the Action frame sequence that was
617 * started with send_action() has been completed, i.e., when there is
618 * no need to wait for a response from the destination peer anymore.
619 */
620 void (*send_action_done)(void *ctx);
621
622 /**
623 * start_listen - Start Listen state
624 * @ctx: Callback context from cb_ctx
625 * @freq: Frequency of the listen channel in MHz
626 * @duration: Duration for the Listen state in milliseconds
627 * @probe_resp_ie: IE(s) to be added to Probe Response frames
628 * Returns: 0 on success, -1 on failure
629 *
630 * This Listen state may not start immediately since the driver may
631 * have other pending operations to complete first. Once the Listen
632 * state has started, p2p_listen_cb() must be called to notify the P2P
633 * module. Once the Listen state is stopped, p2p_listen_end() must be
634 * called to notify the P2P module that the driver is not in the Listen
635 * state anymore.
636 *
637 * If the send_probe_resp() is not used for generating the response,
638 * the IEs from probe_resp_ie need to be added to the end of the Probe
639 * Response frame body. If send_probe_resp() is used, the probe_resp_ie
640 * information can be ignored.
641 */
642 int (*start_listen)(void *ctx, unsigned int freq,
643 unsigned int duration,
644 const struct wpabuf *probe_resp_ie);
645 /**
646 * stop_listen - Stop Listen state
647 * @ctx: Callback context from cb_ctx
648 *
649 * This callback can be used to stop a Listen state operation that was
650 * previously requested with start_listen().
651 */
652 void (*stop_listen)(void *ctx);
653
654 /**
655 * get_noa - Get current Notice of Absence attribute payload
656 * @ctx: Callback context from cb_ctx
657 * @interface_addr: P2P Interface Address of the GO
658 * @buf: Buffer for returning NoA
659 * @buf_len: Buffer length in octets
660 * Returns: Number of octets used in buf, 0 to indicate no NoA is being
661 * advertized, or -1 on failure
662 *
663 * This function is used to fetch the current Notice of Absence
664 * attribute value from GO.
665 */
666 int (*get_noa)(void *ctx, const u8 *interface_addr, u8 *buf,
667 size_t buf_len);
668
669 /* Callbacks to notify events to upper layer management entity */
670
671 /**
672 * dev_found - Notification of a found P2P Device
673 * @ctx: Callback context from cb_ctx
674 * @addr: Source address of the message triggering this notification
675 * @info: P2P peer information
676 * @new_device: Inform if the peer is newly found
677 *
678 * This callback is used to notify that a new P2P Device has been
679 * found. This may happen, e.g., during Search state based on scan
680 * results or during Listen state based on receive Probe Request and
681 * Group Owner Negotiation Request.
682 */
683 void (*dev_found)(void *ctx, const u8 *addr,
684 const struct p2p_peer_info *info,
685 int new_device);
686
687 /**
688 * dev_lost - Notification of a lost P2P Device
689 * @ctx: Callback context from cb_ctx
690 * @dev_addr: P2P Device Address of the lost P2P Device
691 *
692 * This callback is used to notify that a P2P Device has been deleted.
693 */
694 void (*dev_lost)(void *ctx, const u8 *dev_addr);
695
696 /**
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700697 * find_stopped - Notification of a p2p_find operation stopping
698 * @ctx: Callback context from cb_ctx
699 */
700 void (*find_stopped)(void *ctx);
701
702 /**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700703 * go_neg_req_rx - Notification of a receive GO Negotiation Request
704 * @ctx: Callback context from cb_ctx
705 * @src: Source address of the message triggering this notification
706 * @dev_passwd_id: WPS Device Password ID
707 *
708 * This callback is used to notify that a P2P Device is requesting
709 * group owner negotiation with us, but we do not have all the
710 * necessary information to start GO Negotiation. This indicates that
711 * the local user has not authorized the connection yet by providing a
712 * PIN or PBC button press. This information can be provided with a
713 * call to p2p_connect().
714 */
715 void (*go_neg_req_rx)(void *ctx, const u8 *src, u16 dev_passwd_id);
716
717 /**
718 * go_neg_completed - Notification of GO Negotiation results
719 * @ctx: Callback context from cb_ctx
720 * @res: GO Negotiation results
721 *
722 * This callback is used to notify that Group Owner Negotiation has
723 * been completed. Non-zero struct p2p_go_neg_results::status indicates
724 * failed negotiation. In case of success, this function is responsible
725 * for creating a new group interface (or using the existing interface
726 * depending on driver features), setting up the group interface in
727 * proper mode based on struct p2p_go_neg_results::role_go and
728 * initializing WPS provisioning either as a Registrar (if GO) or as an
729 * Enrollee. Successful WPS provisioning must be indicated by calling
730 * p2p_wps_success_cb(). The callee is responsible for timing out group
731 * formation if WPS provisioning cannot be completed successfully
732 * within 15 seconds.
733 */
734 void (*go_neg_completed)(void *ctx, struct p2p_go_neg_results *res);
735
736 /**
737 * sd_request - Callback on Service Discovery Request
738 * @ctx: Callback context from cb_ctx
739 * @freq: Frequency (in MHz) of the channel
740 * @sa: Source address of the request
741 * @dialog_token: Dialog token
742 * @update_indic: Service Update Indicator from the source of request
743 * @tlvs: P2P Service Request TLV(s)
744 * @tlvs_len: Length of tlvs buffer in octets
745 *
746 * This callback is used to indicate reception of a service discovery
747 * request. Response to the query must be indicated by calling
748 * p2p_sd_response() with the context information from the arguments to
749 * this callback function.
750 *
751 * This callback handler can be set to %NULL to indicate that service
752 * discovery is not supported.
753 */
754 void (*sd_request)(void *ctx, int freq, const u8 *sa, u8 dialog_token,
755 u16 update_indic, const u8 *tlvs, size_t tlvs_len);
756
757 /**
758 * sd_response - Callback on Service Discovery Response
759 * @ctx: Callback context from cb_ctx
760 * @sa: Source address of the request
761 * @update_indic: Service Update Indicator from the source of response
762 * @tlvs: P2P Service Response TLV(s)
763 * @tlvs_len: Length of tlvs buffer in octets
764 *
765 * This callback is used to indicate reception of a service discovery
766 * response. This callback handler can be set to %NULL if no service
767 * discovery requests are used. The information provided with this call
768 * is replies to the queries scheduled with p2p_sd_request().
769 */
770 void (*sd_response)(void *ctx, const u8 *sa, u16 update_indic,
771 const u8 *tlvs, size_t tlvs_len);
772
773 /**
774 * prov_disc_req - Callback on Provisiong Discovery Request
775 * @ctx: Callback context from cb_ctx
776 * @peer: Source address of the request
777 * @config_methods: Requested WPS Config Method
778 * @dev_addr: P2P Device Address of the found P2P Device
779 * @pri_dev_type: Primary Device Type
780 * @dev_name: Device Name
781 * @supp_config_methods: Supported configuration Methods
782 * @dev_capab: Device Capabilities
783 * @group_capab: Group Capabilities
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800784 * @group_id: P2P Group ID (or %NULL if not included)
785 * @group_id_len: Length of P2P Group ID
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700786 *
787 * This callback is used to indicate reception of a Provision Discovery
788 * Request frame that the P2P module accepted.
789 */
790 void (*prov_disc_req)(void *ctx, const u8 *peer, u16 config_methods,
791 const u8 *dev_addr, const u8 *pri_dev_type,
792 const char *dev_name, u16 supp_config_methods,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800793 u8 dev_capab, u8 group_capab,
794 const u8 *group_id, size_t group_id_len);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700795
796 /**
797 * prov_disc_resp - Callback on Provisiong Discovery Response
798 * @ctx: Callback context from cb_ctx
799 * @peer: Source address of the response
800 * @config_methods: Value from p2p_prov_disc_req() or 0 on failure
801 *
802 * This callback is used to indicate reception of a Provision Discovery
803 * Response frame for a pending request scheduled with
804 * p2p_prov_disc_req(). This callback handler can be set to %NULL if
805 * provision discovery is not used.
806 */
807 void (*prov_disc_resp)(void *ctx, const u8 *peer, u16 config_methods);
808
809 /**
Jouni Malinen75ecf522011-06-27 15:19:46 -0700810 * prov_disc_fail - Callback on Provision Discovery failure
811 * @ctx: Callback context from cb_ctx
812 * @peer: Source address of the response
813 * @status: Cause of failure, will not be %P2P_PROV_DISC_SUCCESS
Dmitry Shmidt216983b2015-02-06 10:50:36 -0800814 * @adv_id: If non-zero, then the adv_id of the PD Request
815 * @adv_mac: P2P Device Address of the advertizer
816 * @deferred_session_resp: Deferred session response sent by advertizer
Jouni Malinen75ecf522011-06-27 15:19:46 -0700817 *
818 * This callback is used to indicate either a failure or no response
819 * to an earlier provision discovery request.
820 *
821 * This callback handler can be set to %NULL if provision discovery
822 * is not used or failures do not need to be indicated.
823 */
824 void (*prov_disc_fail)(void *ctx, const u8 *peer,
Dmitry Shmidt216983b2015-02-06 10:50:36 -0800825 enum p2p_prov_disc_status status,
826 u32 adv_id, const u8 *adv_mac,
827 const char *deferred_session_resp);
Jouni Malinen75ecf522011-06-27 15:19:46 -0700828
829 /**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700830 * invitation_process - Optional callback for processing Invitations
831 * @ctx: Callback context from cb_ctx
832 * @sa: Source address of the Invitation Request
833 * @bssid: P2P Group BSSID from the request or %NULL if not included
834 * @go_dev_addr: GO Device Address from P2P Group ID
835 * @ssid: SSID from P2P Group ID
836 * @ssid_len: Length of ssid buffer in octets
837 * @go: Variable for returning whether the local end is GO in the group
838 * @group_bssid: Buffer for returning P2P Group BSSID (if local end GO)
839 * @force_freq: Variable for returning forced frequency for the group
840 * @persistent_group: Whether this is an invitation to reinvoke a
841 * persistent group (instead of invitation to join an active
842 * group)
Dmitry Shmidtf7e0a992013-05-23 11:03:10 -0700843 * @channels: Available operating channels for the group
Dmitry Shmidtcf32e602014-01-28 10:57:39 -0800844 * @dev_pw_id: Device Password ID for NFC static handover or -1 if not
845 * used
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700846 * Returns: Status code (P2P_SC_*)
847 *
848 * This optional callback can be used to implement persistent reconnect
849 * by allowing automatic restarting of persistent groups without user
850 * interaction. If this callback is not implemented (i.e., is %NULL),
851 * the received Invitation Request frames are replied with
852 * %P2P_SC_REQ_RECEIVED status and indicated to upper layer with the
853 * invitation_result() callback.
854 *
855 * If the requested parameters are acceptable and the group is known,
856 * %P2P_SC_SUCCESS may be returned. If the requested group is unknown,
857 * %P2P_SC_FAIL_UNKNOWN_GROUP should be returned. %P2P_SC_REQ_RECEIVED
858 * can be returned if there is not enough data to provide immediate
859 * response, i.e., if some sort of user interaction is needed. The
860 * invitation_received() callback will be called in that case
861 * immediately after this call.
862 */
863 u8 (*invitation_process)(void *ctx, const u8 *sa, const u8 *bssid,
864 const u8 *go_dev_addr, const u8 *ssid,
865 size_t ssid_len, int *go, u8 *group_bssid,
Dmitry Shmidtf7e0a992013-05-23 11:03:10 -0700866 int *force_freq, int persistent_group,
Dmitry Shmidtcf32e602014-01-28 10:57:39 -0800867 const struct p2p_channels *channels,
868 int dev_pw_id);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700869
870 /**
871 * invitation_received - Callback on Invitation Request RX
872 * @ctx: Callback context from cb_ctx
873 * @sa: Source address of the Invitation Request
874 * @bssid: P2P Group BSSID or %NULL if not received
875 * @ssid: SSID of the group
876 * @ssid_len: Length of ssid in octets
877 * @go_dev_addr: GO Device Address
878 * @status: Response Status
879 * @op_freq: Operational frequency for the group
880 *
881 * This callback is used to indicate sending of an Invitation Response
882 * for a received Invitation Request. If status == 0 (success), the
883 * upper layer code is responsible for starting the group. status == 1
884 * indicates need to get user authorization for the group. Other status
885 * values indicate that the invitation request was rejected.
886 */
887 void (*invitation_received)(void *ctx, const u8 *sa, const u8 *bssid,
888 const u8 *ssid, size_t ssid_len,
889 const u8 *go_dev_addr, u8 status,
890 int op_freq);
891
892 /**
893 * invitation_result - Callback on Invitation result
894 * @ctx: Callback context from cb_ctx
895 * @status: Negotiation result (Status Code)
896 * @bssid: P2P Group BSSID or %NULL if not received
Dmitry Shmidt7a5e50a2013-03-05 12:37:16 -0800897 * @channels: Available operating channels for the group
Dmitry Shmidt700a1372013-03-15 14:14:44 -0700898 * @addr: Peer address
Dmitry Shmidte0e48dc2013-11-18 12:00:06 -0800899 * @freq: Frequency (in MHz) indicated during invitation or 0
Dmitry Shmidt15907092014-03-25 10:42:57 -0700900 * @peer_oper_freq: Operating frequency (in MHz) advertized by the peer
901 * during invitation or 0
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700902 *
903 * This callback is used to indicate result of an Invitation procedure
904 * started with a call to p2p_invite(). The indicated status code is
905 * the value received from the peer in Invitation Response with 0
906 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a
907 * local failure in transmitting the Invitation Request.
908 */
Dmitry Shmidt7a5e50a2013-03-05 12:37:16 -0800909 void (*invitation_result)(void *ctx, int status, const u8 *bssid,
Dmitry Shmidt700a1372013-03-15 14:14:44 -0700910 const struct p2p_channels *channels,
Dmitry Shmidt15907092014-03-25 10:42:57 -0700911 const u8 *addr, int freq, int peer_oper_freq);
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800912
913 /**
914 * go_connected - Check whether we are connected to a GO
915 * @ctx: Callback context from cb_ctx
916 * @dev_addr: P2P Device Address of a GO
917 * Returns: 1 if we are connected as a P2P client to the specified GO
918 * or 0 if not.
919 */
920 int (*go_connected)(void *ctx, const u8 *dev_addr);
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800921
922 /**
923 * presence_resp - Callback on Presence Response
924 * @ctx: Callback context from cb_ctx
925 * @src: Source address (GO's P2P Interface Address)
926 * @status: Result of the request (P2P_SC_*)
927 * @noa: Returned NoA value
928 * @noa_len: Length of the NoA buffer in octets
929 */
930 void (*presence_resp)(void *ctx, const u8 *src, u8 status,
931 const u8 *noa, size_t noa_len);
Dmitry Shmidt18463232014-01-24 12:29:41 -0800932
933 /**
934 * is_concurrent_session_active - Check whether concurrent session is
935 * active on other virtual interfaces
936 * @ctx: Callback context from cb_ctx
937 * Returns: 1 if concurrent session is active on other virtual interface
938 * or 0 if not.
939 */
940 int (*is_concurrent_session_active)(void *ctx);
Dmitry Shmidt5a1480c2014-05-12 09:46:02 -0700941
942 /**
943 * is_p2p_in_progress - Check whether P2P operation is in progress
944 * @ctx: Callback context from cb_ctx
945 * Returns: 1 if P2P operation (e.g., group formation) is in progress
946 * or 0 if not.
947 */
948 int (*is_p2p_in_progress)(void *ctx);
Dmitry Shmidt216983b2015-02-06 10:50:36 -0800949
950 /**
951 * Determine if we have a persistent group we share with remote peer
952 * @ctx: Callback context from cb_ctx
953 * @addr: Peer device address to search for
954 * @ssid: Persistent group SSID or %NULL if any
955 * @ssid_len: Length of @ssid
956 * @go_dev_addr: Buffer for returning intended GO P2P Device Address
957 * @ret_ssid: Buffer for returning group SSID
958 * @ret_ssid_len: Buffer for returning length of @ssid
959 * Returns: 1 if a matching persistent group was found, 0 otherwise
960 */
961 int (*get_persistent_group)(void *ctx, const u8 *addr, const u8 *ssid,
962 size_t ssid_len, u8 *go_dev_addr,
963 u8 *ret_ssid, size_t *ret_ssid_len);
964
965 /**
966 * Get information about a possible local GO role
967 * @ctx: Callback context from cb_ctx
968 * @intended_addr: Buffer for returning intended GO interface address
969 * @ssid: Buffer for returning group SSID
970 * @ssid_len: Buffer for returning length of @ssid
971 * @group_iface: Buffer for returning whether a separate group interface
972 * would be used
973 * Returns: 1 if GO info found, 0 otherwise
974 *
975 * This is used to compose New Group settings (SSID, and intended
976 * address) during P2PS provisioning if results of provisioning *might*
977 * result in our being an autonomous GO.
978 */
979 int (*get_go_info)(void *ctx, u8 *intended_addr,
980 u8 *ssid, size_t *ssid_len, int *group_iface);
981
982 /**
983 * remove_stale_groups - Remove stale P2PS groups
984 *
985 * Because P2PS stages *potential* GOs, and remote devices can remove
986 * credentials unilaterally, we need to make sure we don't let stale
987 * unusable groups build up.
988 */
989 int (*remove_stale_groups)(void *ctx, const u8 *peer, const u8 *go,
990 const u8 *ssid, size_t ssid_len);
991
992 /**
993 * p2ps_prov_complete - P2PS provisioning complete
994 *
995 * When P2PS provisioning completes (successfully or not) we must
996 * transmit all of the results to the upper layers.
997 */
998 void (*p2ps_prov_complete)(void *ctx, u8 status, const u8 *dev,
999 const u8 *adv_mac, const u8 *ses_mac,
1000 const u8 *grp_mac, u32 adv_id, u32 ses_id,
1001 u8 conncap, int passwd_id,
1002 const u8 *persist_ssid,
1003 size_t persist_ssid_size, int response_done,
1004 int prov_start, const char *session_info);
1005
1006 /**
1007 * prov_disc_resp_cb - Callback for indicating completion of PD Response
1008 * @ctx: Callback context from cb_ctx
1009 * Returns: 1 if operation was started, 0 otherwise
1010 *
1011 * This callback can be used to perform any pending actions after
1012 * provisioning. It is mainly used for P2PS pending group creation.
1013 */
1014 int (*prov_disc_resp_cb)(void *ctx);
1015
1016 /**
1017 * p2ps_group_capability - Determine group capability
1018 *
1019 * This function can be used to determine group capability based on
1020 * information from P2PS PD exchange and the current state of ongoing
1021 * groups and driver capabilities.
1022 *
1023 * P2PS_SETUP_* bitmap is used as the parameters and return value.
1024 */
1025 u8 (*p2ps_group_capability)(void *ctx, u8 incoming, u8 role);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001026};
1027
1028
1029/* P2P module initialization/deinitialization */
1030
1031/**
1032 * p2p_init - Initialize P2P module
1033 * @cfg: P2P module configuration
1034 * Returns: Pointer to private data or %NULL on failure
1035 *
1036 * This function is used to initialize global P2P module context (one per
1037 * device). The P2P module will keep a copy of the configuration data, so the
1038 * caller does not need to maintain this structure. However, the callback
1039 * functions and the context parameters to them must be kept available until
1040 * the P2P module is deinitialized with p2p_deinit().
1041 */
1042struct p2p_data * p2p_init(const struct p2p_config *cfg);
1043
1044/**
1045 * p2p_deinit - Deinitialize P2P module
1046 * @p2p: P2P module context from p2p_init()
1047 */
1048void p2p_deinit(struct p2p_data *p2p);
1049
1050/**
1051 * p2p_flush - Flush P2P module state
1052 * @p2p: P2P module context from p2p_init()
1053 *
1054 * This command removes the P2P module state like peer device entries.
1055 */
1056void p2p_flush(struct p2p_data *p2p);
1057
1058/**
1059 * p2p_unauthorize - Unauthorize the specified peer device
1060 * @p2p: P2P module context from p2p_init()
1061 * @addr: P2P peer entry to be unauthorized
1062 * Returns: 0 on success, -1 on failure
1063 *
1064 * This command removes any connection authorization from the specified P2P
1065 * peer device address. This can be used, e.g., to cancel effect of a previous
1066 * p2p_authorize() or p2p_connect() call that has not yet resulted in completed
1067 * GO Negotiation.
1068 */
1069int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr);
1070
1071/**
1072 * p2p_set_dev_name - Set device name
1073 * @p2p: P2P module context from p2p_init()
1074 * Returns: 0 on success, -1 on failure
1075 *
1076 * This function can be used to update the P2P module configuration with
1077 * information that was not available at the time of the p2p_init() call.
1078 */
1079int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name);
1080
1081int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer);
1082int p2p_set_model_name(struct p2p_data *p2p, const char *model_name);
1083int p2p_set_model_number(struct p2p_data *p2p, const char *model_number);
1084int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number);
1085
1086void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods);
1087void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid);
1088
1089/**
1090 * p2p_set_pri_dev_type - Set primary device type
1091 * @p2p: P2P module context from p2p_init()
1092 * Returns: 0 on success, -1 on failure
1093 *
1094 * This function can be used to update the P2P module configuration with
1095 * information that was not available at the time of the p2p_init() call.
1096 */
1097int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type);
1098
1099/**
1100 * p2p_set_sec_dev_types - Set secondary device types
1101 * @p2p: P2P module context from p2p_init()
1102 * Returns: 0 on success, -1 on failure
1103 *
1104 * This function can be used to update the P2P module configuration with
1105 * information that was not available at the time of the p2p_init() call.
1106 */
1107int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
1108 size_t num_dev_types);
1109
1110int p2p_set_country(struct p2p_data *p2p, const char *country);
1111
1112
1113/* Commands from upper layer management entity */
1114
1115enum p2p_discovery_type {
1116 P2P_FIND_START_WITH_FULL,
1117 P2P_FIND_ONLY_SOCIAL,
1118 P2P_FIND_PROGRESSIVE
1119};
1120
1121/**
1122 * p2p_find - Start P2P Find (Device Discovery)
1123 * @p2p: P2P module context from p2p_init()
1124 * @timeout: Timeout for find operation in seconds or 0 for no timeout
1125 * @type: Device Discovery type
1126 * @num_req_dev_types: Number of requested device types
1127 * @req_dev_types: Requested device types array, must be an array
1128 * containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no
1129 * requested device types.
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001130 * @dev_id: Device ID to search for or %NULL to find all devices
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001131 * @search_delay: Extra delay in milliseconds between search iterations
Dmitry Shmidt216983b2015-02-06 10:50:36 -08001132 * @seek_count: Number of ASP Service Strings in the seek_string array
1133 * @seek_string: ASP Service Strings to query for in Probe Requests
Dmitry Shmidt203eadb2015-03-05 14:16:04 -08001134 * @freq: Requested first scan frequency (in MHz) to modify type ==
1135 * P2P_FIND_START_WITH_FULL behavior. 0 = Use normal full scan.
1136 * If p2p_find is already in progress, this parameter is ignored and full
1137 * scan will be executed.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001138 * Returns: 0 on success, -1 on failure
1139 */
1140int p2p_find(struct p2p_data *p2p, unsigned int timeout,
1141 enum p2p_discovery_type type,
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001142 unsigned int num_req_dev_types, const u8 *req_dev_types,
Dmitry Shmidt216983b2015-02-06 10:50:36 -08001143 const u8 *dev_id, unsigned int search_delay,
Dmitry Shmidt203eadb2015-03-05 14:16:04 -08001144 u8 seek_count, const char **seek_string, int freq);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001145
1146/**
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08001147 * p2p_notify_scan_trigger_status - Indicate scan trigger status
1148 * @p2p: P2P module context from p2p_init()
1149 * @status: 0 on success, -1 on failure
1150 */
1151void p2p_notify_scan_trigger_status(struct p2p_data *p2p, int status);
1152
1153/**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001154 * p2p_stop_find - Stop P2P Find (Device Discovery)
1155 * @p2p: P2P module context from p2p_init()
1156 */
1157void p2p_stop_find(struct p2p_data *p2p);
1158
1159/**
1160 * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq
1161 * @p2p: P2P module context from p2p_init()
1162 * @freq: Frequency in MHz for next operation
1163 *
1164 * This is like p2p_stop_find(), but Listen state is not stopped if we are
1165 * already on the same frequency.
1166 */
1167void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq);
1168
1169/**
1170 * p2p_listen - Start P2P Listen state for specified duration
1171 * @p2p: P2P module context from p2p_init()
1172 * @timeout: Listen state duration in milliseconds
1173 * Returns: 0 on success, -1 on failure
1174 *
1175 * This function can be used to request the P2P module to keep the device
1176 * discoverable on the listen channel for an extended set of time. At least in
1177 * its current form, this is mainly used for testing purposes and may not be of
1178 * much use for normal P2P operations.
1179 */
1180int p2p_listen(struct p2p_data *p2p, unsigned int timeout);
1181
1182/**
Dmitry Shmidt391c59f2013-09-03 12:16:28 -07001183 * p2p_stop_listen - Stop P2P Listen
1184 * @p2p: P2P module context from p2p_init()
1185 */
1186void p2p_stop_listen(struct p2p_data *p2p);
1187
1188/**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001189 * p2p_connect - Start P2P group formation (GO negotiation)
1190 * @p2p: P2P module context from p2p_init()
1191 * @peer_addr: MAC address of the peer P2P client
1192 * @wps_method: WPS method to be used in provisioning
1193 * @go_intent: Local GO intent value (1..15)
1194 * @own_interface_addr: Intended interface address to use with the group
1195 * @force_freq: The only allowed channel frequency in MHz or 0
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001196 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
1197 * persistent group without persistent reconnect, 2 = persistent group with
1198 * persistent reconnect)
Dmitry Shmidt04949592012-07-19 12:16:46 -07001199 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
1200 * a new SSID
1201 * @force_ssid_len: Length of $force_ssid buffer
1202 * @pd_before_go_neg: Whether to send Provision Discovery prior to GO
1203 * Negotiation as an interoperability workaround when initiating group
1204 * formation
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001205 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if
1206 * force_freq == 0)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001207 * Returns: 0 on success, -1 on failure
1208 */
1209int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
1210 enum p2p_wps_method wps_method,
1211 int go_intent, const u8 *own_interface_addr,
Dmitry Shmidt04949592012-07-19 12:16:46 -07001212 unsigned int force_freq, int persistent_group,
1213 const u8 *force_ssid, size_t force_ssid_len,
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08001214 int pd_before_go_neg, unsigned int pref_freq, u16 oob_pw_id);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001215
1216/**
1217 * p2p_authorize - Authorize P2P group formation (GO negotiation)
1218 * @p2p: P2P module context from p2p_init()
1219 * @peer_addr: MAC address of the peer P2P client
1220 * @wps_method: WPS method to be used in provisioning
1221 * @go_intent: Local GO intent value (1..15)
1222 * @own_interface_addr: Intended interface address to use with the group
1223 * @force_freq: The only allowed channel frequency in MHz or 0
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001224 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
1225 * persistent group without persistent reconnect, 2 = persistent group with
1226 * persistent reconnect)
Dmitry Shmidt04949592012-07-19 12:16:46 -07001227 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
1228 * a new SSID
1229 * @force_ssid_len: Length of $force_ssid buffer
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001230 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if
1231 * force_freq == 0)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001232 * Returns: 0 on success, -1 on failure
1233 *
1234 * This is like p2p_connect(), but the actual group negotiation is not
1235 * initiated automatically, i.e., the other end is expected to do that.
1236 */
1237int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
1238 enum p2p_wps_method wps_method,
1239 int go_intent, const u8 *own_interface_addr,
Dmitry Shmidt04949592012-07-19 12:16:46 -07001240 unsigned int force_freq, int persistent_group,
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001241 const u8 *force_ssid, size_t force_ssid_len,
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08001242 unsigned int pref_freq, u16 oob_pw_id);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001243
1244/**
1245 * p2p_reject - Reject peer device (explicitly block connection attempts)
1246 * @p2p: P2P module context from p2p_init()
1247 * @peer_addr: MAC address of the peer P2P client
1248 * Returns: 0 on success, -1 on failure
1249 */
1250int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr);
1251
1252/**
1253 * p2p_prov_disc_req - Send Provision Discovery Request
1254 * @p2p: P2P module context from p2p_init()
1255 * @peer_addr: MAC address of the peer P2P client
Dmitry Shmidt216983b2015-02-06 10:50:36 -08001256 * @p2ps_prov: Provisioning info for P2PS
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001257 * @config_methods: WPS Config Methods value (only one bit set)
1258 * @join: Whether this is used by a client joining an active group
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001259 * @force_freq: Forced TX frequency for the frame (mainly for the join case)
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001260 * @user_initiated_pd: Flag to indicate if initiated by user or not
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001261 * Returns: 0 on success, -1 on failure
1262 *
1263 * This function can be used to request a discovered P2P peer to display a PIN
1264 * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us
1265 * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame
1266 * is transmitted once immediately and if no response is received, the frame
1267 * will be sent again whenever the target device is discovered during device
1268 * dsicovery (start with a p2p_find() call). Response from the peer is
1269 * indicated with the p2p_config::prov_disc_resp() callback.
1270 */
1271int p2p_prov_disc_req(struct p2p_data *p2p, const u8 *peer_addr,
Dmitry Shmidt216983b2015-02-06 10:50:36 -08001272 struct p2ps_provision *p2ps_prov, u16 config_methods,
1273 int join, int force_freq,
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001274 int user_initiated_pd);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001275
1276/**
1277 * p2p_sd_request - Schedule a service discovery query
1278 * @p2p: P2P module context from p2p_init()
1279 * @dst: Destination peer or %NULL to apply for all peers
1280 * @tlvs: P2P Service Query TLV(s)
1281 * Returns: Reference to the query or %NULL on failure
1282 *
1283 * Response to the query is indicated with the p2p_config::sd_response()
1284 * callback.
1285 */
1286void * p2p_sd_request(struct p2p_data *p2p, const u8 *dst,
1287 const struct wpabuf *tlvs);
1288
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001289#ifdef CONFIG_WIFI_DISPLAY
1290void * p2p_sd_request_wfd(struct p2p_data *p2p, const u8 *dst,
1291 const struct wpabuf *tlvs);
1292#endif /* CONFIG_WIFI_DISPLAY */
1293
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001294/**
1295 * p2p_sd_cancel_request - Cancel a pending service discovery query
1296 * @p2p: P2P module context from p2p_init()
1297 * @req: Query reference from p2p_sd_request()
1298 * Returns: 0 if request for cancelled; -1 if not found
1299 */
1300int p2p_sd_cancel_request(struct p2p_data *p2p, void *req);
1301
1302/**
1303 * p2p_sd_response - Send response to a service discovery query
1304 * @p2p: P2P module context from p2p_init()
1305 * @freq: Frequency from p2p_config::sd_request() callback
1306 * @dst: Destination address from p2p_config::sd_request() callback
1307 * @dialog_token: Dialog token from p2p_config::sd_request() callback
1308 * @resp_tlvs: P2P Service Response TLV(s)
1309 *
1310 * This function is called as a response to the request indicated with
1311 * p2p_config::sd_request() callback.
1312 */
1313void p2p_sd_response(struct p2p_data *p2p, int freq, const u8 *dst,
1314 u8 dialog_token, const struct wpabuf *resp_tlvs);
1315
1316/**
1317 * p2p_sd_service_update - Indicate a change in local services
1318 * @p2p: P2P module context from p2p_init()
1319 *
1320 * This function needs to be called whenever there is a change in availability
1321 * of the local services. This will increment the Service Update Indicator
1322 * value which will be used in SD Request and Response frames.
1323 */
1324void p2p_sd_service_update(struct p2p_data *p2p);
1325
1326
1327enum p2p_invite_role {
1328 P2P_INVITE_ROLE_GO,
1329 P2P_INVITE_ROLE_ACTIVE_GO,
1330 P2P_INVITE_ROLE_CLIENT
1331};
1332
1333/**
1334 * p2p_invite - Invite a P2P Device into a group
1335 * @p2p: P2P module context from p2p_init()
1336 * @peer: Device Address of the peer P2P Device
1337 * @role: Local role in the group
1338 * @bssid: Group BSSID or %NULL if not known
1339 * @ssid: Group SSID
1340 * @ssid_len: Length of ssid in octets
1341 * @force_freq: The only allowed channel frequency in MHz or 0
1342 * @go_dev_addr: Forced GO Device Address or %NULL if none
1343 * @persistent_group: Whether this is to reinvoke a persistent group
Dmitry Shmidt7a5e50a2013-03-05 12:37:16 -08001344 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if
1345 * force_freq == 0)
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08001346 * @dev_pw_id: Device Password ID from OOB Device Password (NFC) static handover
1347 * case or -1 if not used
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001348 * Returns: 0 on success, -1 on failure
1349 */
1350int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role,
1351 const u8 *bssid, const u8 *ssid, size_t ssid_len,
1352 unsigned int force_freq, const u8 *go_dev_addr,
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08001353 int persistent_group, unsigned int pref_freq, int dev_pw_id);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001354
1355/**
1356 * p2p_presence_req - Request GO presence
1357 * @p2p: P2P module context from p2p_init()
1358 * @go_interface_addr: GO P2P Interface Address
1359 * @own_interface_addr: Own P2P Interface Address for this group
1360 * @freq: Group operating frequence (in MHz)
1361 * @duration1: Preferred presence duration in microseconds
1362 * @interval1: Preferred presence interval in microseconds
1363 * @duration2: Acceptable presence duration in microseconds
1364 * @interval2: Acceptable presence interval in microseconds
1365 * Returns: 0 on success, -1 on failure
1366 *
1367 * If both duration and interval values are zero, the parameter pair is not
1368 * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0).
1369 */
1370int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
1371 const u8 *own_interface_addr, unsigned int freq,
1372 u32 duration1, u32 interval1, u32 duration2,
1373 u32 interval2);
1374
1375/**
1376 * p2p_ext_listen - Set Extended Listen Timing
1377 * @p2p: P2P module context from p2p_init()
1378 * @freq: Group operating frequence (in MHz)
1379 * @period: Availability period in milliseconds (1-65535; 0 to disable)
1380 * @interval: Availability interval in milliseconds (1-65535; 0 to disable)
1381 * Returns: 0 on success, -1 on failure
1382 *
1383 * This function can be used to enable or disable (period = interval = 0)
1384 * Extended Listen Timing. When enabled, the P2P Device will become
1385 * discoverable (go into Listen State) every @interval milliseconds for at
1386 * least @period milliseconds.
1387 */
1388int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
1389 unsigned int interval);
1390
1391/* Event notifications from upper layer management operations */
1392
1393/**
1394 * p2p_wps_success_cb - Report successfully completed WPS provisioning
1395 * @p2p: P2P module context from p2p_init()
1396 * @mac_addr: Peer address
1397 *
1398 * This function is used to report successfully completed WPS provisioning
1399 * during group formation in both GO/Registrar and client/Enrollee roles.
1400 */
1401void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr);
1402
1403/**
1404 * p2p_group_formation_failed - Report failed WPS provisioning
1405 * @p2p: P2P module context from p2p_init()
1406 *
1407 * This function is used to report failed group formation. This can happen
1408 * either due to failed WPS provisioning or due to 15 second timeout during
1409 * the provisioning phase.
1410 */
1411void p2p_group_formation_failed(struct p2p_data *p2p);
1412
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001413/**
1414 * p2p_get_provisioning_info - Get any stored provisioning info
1415 * @p2p: P2P module context from p2p_init()
1416 * @addr: Peer P2P Device Address
1417 * Returns: WPS provisioning information (WPS config method) or 0 if no
1418 * information is available
1419 *
1420 * This function is used to retrieve stored WPS provisioning info for the given
1421 * peer.
1422 */
1423u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr);
1424
1425/**
1426 * p2p_clear_provisioning_info - Clear any stored provisioning info
1427 * @p2p: P2P module context from p2p_init()
Dmitry Shmidt04949592012-07-19 12:16:46 -07001428 * @iface_addr: Peer P2P Device Address
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001429 *
1430 * This function is used to clear stored WPS provisioning info for the given
1431 * peer.
1432 */
Dmitry Shmidt04949592012-07-19 12:16:46 -07001433void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001434
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001435
1436/* Event notifications from lower layer driver operations */
1437
1438/**
Dmitry Shmidt04949592012-07-19 12:16:46 -07001439 * enum p2p_probe_req_status
1440 *
1441 * @P2P_PREQ_MALFORMED: frame was not well-formed
1442 * @P2P_PREQ_NOT_LISTEN: device isn't in listen state, frame ignored
1443 * @P2P_PREQ_NOT_P2P: frame was not a P2P probe request
1444 * @P2P_PREQ_P2P_NOT_PROCESSED: frame was P2P but wasn't processed
1445 * @P2P_PREQ_P2P_PROCESSED: frame has been processed by P2P
1446 */
1447enum p2p_probe_req_status {
1448 P2P_PREQ_MALFORMED,
1449 P2P_PREQ_NOT_LISTEN,
1450 P2P_PREQ_NOT_P2P,
1451 P2P_PREQ_NOT_PROCESSED,
1452 P2P_PREQ_PROCESSED
1453};
1454
1455/**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001456 * p2p_probe_req_rx - Report reception of a Probe Request frame
1457 * @p2p: P2P module context from p2p_init()
1458 * @addr: Source MAC address
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001459 * @dst: Destination MAC address if available or %NULL
1460 * @bssid: BSSID if available or %NULL
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001461 * @ie: Information elements from the Probe Request frame body
1462 * @ie_len: Length of ie buffer in octets
Dmitry Shmidt04949592012-07-19 12:16:46 -07001463 * Returns: value indicating the type and status of the probe request
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001464 */
Dmitry Shmidt04949592012-07-19 12:16:46 -07001465enum p2p_probe_req_status
1466p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
1467 const u8 *bssid, const u8 *ie, size_t ie_len);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001468
1469/**
1470 * p2p_rx_action - Report received Action frame
1471 * @p2p: P2P module context from p2p_init()
1472 * @da: Destination address of the received Action frame
1473 * @sa: Source address of the received Action frame
1474 * @bssid: Address 3 of the received Action frame
1475 * @category: Category of the received Action frame
1476 * @data: Action frame body after the Category field
1477 * @len: Length of the data buffer in octets
1478 * @freq: Frequency (in MHz) on which the frame was received
1479 */
1480void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1481 const u8 *bssid, u8 category,
1482 const u8 *data, size_t len, int freq);
1483
1484/**
1485 * p2p_scan_res_handler - Indicate a P2P scan results
1486 * @p2p: P2P module context from p2p_init()
1487 * @bssid: BSSID of the scan result
1488 * @freq: Frequency of the channel on which the device was found in MHz
Dmitry Shmidtf8623282013-02-20 14:34:59 -08001489 * @rx_time: Time when the result was received
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001490 * @level: Signal level (signal strength of the received Beacon/Probe Response
1491 * frame)
1492 * @ies: Pointer to IEs from the scan result
1493 * @ies_len: Length of the ies buffer
1494 * Returns: 0 to continue or 1 to stop scan result indication
1495 *
1496 * This function is called to indicate a scan result entry with P2P IE from a
1497 * scan requested with struct p2p_config::p2p_scan(). This can be called during
1498 * the actual scan process (i.e., whenever a new device is found) or as a
1499 * sequence of calls after the full scan has been completed. The former option
1500 * can result in optimized operations, but may not be supported by all
1501 * driver/firmware designs. The ies buffer need to include at least the P2P IE,
1502 * but it is recommended to include all IEs received from the device. The
1503 * caller does not need to check that the IEs contain a P2P IE before calling
1504 * this function since frames will be filtered internally if needed.
1505 *
1506 * This function will return 1 if it wants to stop scan result iteration (and
1507 * scan in general if it is still in progress). This is used to allow faster
1508 * start of a pending operation, e.g., to start a pending GO negotiation.
1509 */
1510int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08001511 struct os_reltime *rx_time, int level, const u8 *ies,
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001512 size_t ies_len);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001513
1514/**
1515 * p2p_scan_res_handled - Indicate end of scan results
1516 * @p2p: P2P module context from p2p_init()
1517 *
1518 * This function is called to indicate that all P2P scan results from a scan
1519 * have been reported with zero or more calls to p2p_scan_res_handler(). This
1520 * function must be called as a response to successful
1521 * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler()
1522 * calls stopped iteration.
1523 */
1524void p2p_scan_res_handled(struct p2p_data *p2p);
1525
1526enum p2p_send_action_result {
1527 P2P_SEND_ACTION_SUCCESS /* Frame was send and acknowledged */,
1528 P2P_SEND_ACTION_NO_ACK /* Frame was sent, but not acknowledged */,
1529 P2P_SEND_ACTION_FAILED /* Frame was not sent due to a failure */
1530};
1531
1532/**
1533 * p2p_send_action_cb - Notify TX status of an Action frame
1534 * @p2p: P2P module context from p2p_init()
1535 * @freq: Channel frequency in MHz
1536 * @dst: Destination MAC address (Address 1)
1537 * @src: Source MAC address (Address 2)
1538 * @bssid: BSSID (Address 3)
1539 * @result: Result of the transmission attempt
1540 *
1541 * This function is used to indicate the result of an Action frame transmission
1542 * that was requested with struct p2p_config::send_action() callback.
1543 */
1544void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
1545 const u8 *src, const u8 *bssid,
1546 enum p2p_send_action_result result);
1547
1548/**
1549 * p2p_listen_cb - Indicate the start of a requested Listen state
1550 * @p2p: P2P module context from p2p_init()
1551 * @freq: Listen channel frequency in MHz
1552 * @duration: Duration for the Listen state in milliseconds
1553 *
1554 * This function is used to indicate that a Listen state requested with
1555 * struct p2p_config::start_listen() callback has started.
1556 */
1557void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
1558 unsigned int duration);
1559
1560/**
1561 * p2p_listen_end - Indicate the end of a requested Listen state
1562 * @p2p: P2P module context from p2p_init()
1563 * @freq: Listen channel frequency in MHz
1564 * Returns: 0 if no operations were started, 1 if an operation was started
1565 *
1566 * This function is used to indicate that a Listen state requested with
1567 * struct p2p_config::start_listen() callback has ended.
1568 */
1569int p2p_listen_end(struct p2p_data *p2p, unsigned int freq);
1570
1571void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
1572 const u8 *ie, size_t ie_len);
1573
1574void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
1575 const u8 *ie, size_t ie_len);
1576
1577
1578/* Per-group P2P state for GO */
1579
1580struct p2p_group;
1581
1582/**
1583 * struct p2p_group_config - P2P group configuration
1584 *
1585 * This configuration is provided to the P2P module during initialization of
1586 * the per-group information with p2p_group_init().
1587 */
1588struct p2p_group_config {
1589 /**
1590 * persistent_group - Whether the group is persistent
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001591 * 0 = not a persistent group
1592 * 1 = persistent group without persistent reconnect
1593 * 2 = persistent group with persistent reconnect
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001594 */
1595 int persistent_group;
1596
1597 /**
1598 * interface_addr - P2P Interface Address of the group
1599 */
1600 u8 interface_addr[ETH_ALEN];
1601
1602 /**
1603 * max_clients - Maximum number of clients in the group
1604 */
1605 unsigned int max_clients;
1606
1607 /**
Dmitry Shmidt04949592012-07-19 12:16:46 -07001608 * ssid - Group SSID
1609 */
1610 u8 ssid[32];
1611
1612 /**
1613 * ssid_len - Length of SSID
1614 */
1615 size_t ssid_len;
1616
1617 /**
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08001618 * freq - Operating channel of the group
1619 */
1620 int freq;
1621
1622 /**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001623 * cb_ctx - Context to use with callback functions
1624 */
1625 void *cb_ctx;
1626
1627 /**
1628 * ie_update - Notification of IE update
1629 * @ctx: Callback context from cb_ctx
1630 * @beacon_ies: P2P IE for Beacon frames or %NULL if no change
1631 * @proberesp_ies: P2P Ie for Probe Response frames
1632 *
1633 * P2P module uses this callback function to notify whenever the P2P IE
1634 * in Beacon or Probe Response frames should be updated based on group
1635 * events.
1636 *
1637 * The callee is responsible for freeing the returned buffer(s) with
1638 * wpabuf_free().
1639 */
1640 void (*ie_update)(void *ctx, struct wpabuf *beacon_ies,
1641 struct wpabuf *proberesp_ies);
1642
1643 /**
1644 * idle_update - Notification of changes in group idle state
1645 * @ctx: Callback context from cb_ctx
1646 * @idle: Whether the group is idle (no associated stations)
1647 */
1648 void (*idle_update)(void *ctx, int idle);
1649};
1650
1651/**
1652 * p2p_group_init - Initialize P2P group
1653 * @p2p: P2P module context from p2p_init()
1654 * @config: P2P group configuration (will be freed by p2p_group_deinit())
1655 * Returns: Pointer to private data or %NULL on failure
1656 *
1657 * This function is used to initialize per-group P2P module context. Currently,
1658 * this is only used to manage GO functionality and P2P clients do not need to
1659 * create an instance of this per-group information.
1660 */
1661struct p2p_group * p2p_group_init(struct p2p_data *p2p,
1662 struct p2p_group_config *config);
1663
1664/**
1665 * p2p_group_deinit - Deinitialize P2P group
1666 * @group: P2P group context from p2p_group_init()
1667 */
1668void p2p_group_deinit(struct p2p_group *group);
1669
1670/**
1671 * p2p_group_notif_assoc - Notification of P2P client association with GO
1672 * @group: P2P group context from p2p_group_init()
1673 * @addr: Interface address of the P2P client
1674 * @ie: IEs from the (Re)association Request frame
1675 * @len: Length of the ie buffer in octets
1676 * Returns: 0 on success, -1 on failure
1677 */
1678int p2p_group_notif_assoc(struct p2p_group *group, const u8 *addr,
1679 const u8 *ie, size_t len);
1680
1681/**
1682 * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response
1683 * @group: P2P group context from p2p_group_init()
1684 * @status: Status value (P2P_SC_SUCCESS if association succeeded)
1685 * Returns: P2P IE for (Re)association Response or %NULL on failure
1686 *
1687 * The caller is responsible for freeing the returned buffer with
1688 * wpabuf_free().
1689 */
1690struct wpabuf * p2p_group_assoc_resp_ie(struct p2p_group *group, u8 status);
1691
1692/**
1693 * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO
1694 * @group: P2P group context from p2p_group_init()
1695 * @addr: Interface address of the P2P client
1696 */
1697void p2p_group_notif_disassoc(struct p2p_group *group, const u8 *addr);
1698
1699/**
1700 * p2p_group_notif_formation_done - Notification of completed group formation
1701 * @group: P2P group context from p2p_group_init()
1702 */
1703void p2p_group_notif_formation_done(struct p2p_group *group);
1704
1705/**
1706 * p2p_group_notif_noa - Notification of NoA change
1707 * @group: P2P group context from p2p_group_init()
1708 * @noa: Notice of Absence attribute payload, %NULL if none
1709 * @noa_len: Length of noa buffer in octets
1710 * Returns: 0 on success, -1 on failure
1711 *
1712 * Notify the P2P group management about a new NoA contents. This will be
1713 * inserted into the P2P IEs in Beacon and Probe Response frames with rest of
1714 * the group information.
1715 */
1716int p2p_group_notif_noa(struct p2p_group *group, const u8 *noa,
1717 size_t noa_len);
1718
1719/**
1720 * p2p_group_match_dev_type - Match device types in group with requested type
1721 * @group: P2P group context from p2p_group_init()
1722 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1723 * Returns: 1 on match, 0 on mismatch
1724 *
1725 * This function can be used to match the Requested Device Type attribute in
1726 * WPS IE with the device types of a group member for deciding whether a GO
1727 * should reply to a Probe Request frame. Match will be reported if the WPS IE
1728 * is not requested any specific device type.
1729 */
1730int p2p_group_match_dev_type(struct p2p_group *group, struct wpabuf *wps);
1731
1732/**
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001733 * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id
1734 */
1735int p2p_group_match_dev_id(struct p2p_group *group, struct wpabuf *p2p);
1736
1737/**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001738 * p2p_group_go_discover - Send GO Discoverability Request to a group client
1739 * @group: P2P group context from p2p_group_init()
1740 * Returns: 0 on success (frame scheduled); -1 if client was not found
1741 */
1742int p2p_group_go_discover(struct p2p_group *group, const u8 *dev_id,
1743 const u8 *searching_dev, int rx_freq);
1744
1745
1746/* Generic helper functions */
1747
1748/**
1749 * p2p_ie_text - Build text format description of P2P IE
1750 * @p2p_ie: P2P IE
1751 * @buf: Buffer for returning text
1752 * @end: Pointer to the end of the buf area
1753 * Returns: Number of octets written to the buffer or -1 on failure
1754 *
1755 * This function can be used to parse P2P IE contents into text format
1756 * field=value lines.
1757 */
1758int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end);
1759
1760/**
1761 * p2p_scan_result_text - Build text format description of P2P IE
1762 * @ies: Information elements from scan results
1763 * @ies_len: ies buffer length in octets
1764 * @buf: Buffer for returning text
1765 * @end: Pointer to the end of the buf area
1766 * Returns: Number of octets written to the buffer or -1 on failure
1767 *
1768 * This function can be used to parse P2P IE contents into text format
1769 * field=value lines.
1770 */
1771int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end);
1772
1773/**
Dmitry Shmidt04949592012-07-19 12:16:46 -07001774 * p2p_parse_dev_addr_in_p2p_ie - Parse P2P Device Address from a concatenated
1775 * P2P IE
1776 * @p2p_ie: P2P IE
1777 * @dev_addr: Buffer for returning P2P Device Address
1778 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1779 */
1780int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr);
1781
1782/**
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001783 * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s)
1784 * @ies: Information elements from scan results
1785 * @ies_len: ies buffer length in octets
1786 * @dev_addr: Buffer for returning P2P Device Address
1787 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1788 */
1789int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr);
1790
1791/**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001792 * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame
1793 * @p2p: P2P module context from p2p_init()
1794 * @bssid: BSSID
1795 * @buf: Buffer for writing the P2P IE
1796 * @len: Maximum buf length in octets
1797 * @p2p_group: Whether this is for association with a P2P GO
1798 * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none
1799 * Returns: Number of octets written into buf or -1 on failure
1800 */
1801int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
1802 size_t len, int p2p_group, struct wpabuf *p2p_ie);
1803
1804/**
1805 * p2p_scan_ie - Build P2P IE for Probe Request
1806 * @p2p: P2P module context from p2p_init()
1807 * @ies: Buffer for writing P2P IE
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001808 * @dev_id: Device ID to search for or %NULL for any
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001809 */
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001810void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001811
1812/**
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001813 * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie
1814 * @p2p: P2P module context from p2p_init()
1815 * Returns: Number of octets that p2p_scan_ie() may add to the buffer
1816 */
1817size_t p2p_scan_ie_buf_len(struct p2p_data *p2p);
1818
1819/**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001820 * p2p_go_params - Generate random P2P group parameters
1821 * @p2p: P2P module context from p2p_init()
1822 * @params: Buffer for parameters
1823 * Returns: 0 on success, -1 on failure
1824 */
1825int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params);
1826
1827/**
1828 * p2p_get_group_capab - Get Group Capability from P2P IE data
1829 * @p2p_ie: P2P IE(s) contents
1830 * Returns: Group Capability
1831 */
1832u8 p2p_get_group_capab(const struct wpabuf *p2p_ie);
1833
1834/**
1835 * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection
1836 * @p2p_ie: P2P IE(s) contents
1837 * Returns: 0 if cross connection is allow, 1 if not
1838 */
1839int p2p_get_cross_connect_disallowed(const struct wpabuf *p2p_ie);
1840
1841/**
1842 * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data
1843 * @p2p_ie: P2P IE(s) contents
1844 * Returns: Pointer to P2P Device Address or %NULL if not included
1845 */
1846const u8 * p2p_get_go_dev_addr(const struct wpabuf *p2p_ie);
1847
1848/**
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001849 * p2p_get_peer_info - Get P2P peer information
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001850 * @p2p: P2P module context from p2p_init()
1851 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1852 * @next: Whether to select the peer entry following the one indicated by addr
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001853 * Returns: Pointer to peer info or %NULL if not found
1854 */
1855const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
1856 const u8 *addr, int next);
1857
1858/**
1859 * p2p_get_peer_info_txt - Get internal P2P peer information in text format
1860 * @info: Pointer to P2P peer info from p2p_get_peer_info()
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001861 * @buf: Buffer for returning text
1862 * @buflen: Maximum buffer length
1863 * Returns: Number of octets written to the buffer or -1 on failure
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001864 *
1865 * Note: This information is internal to the P2P module and subject to change.
1866 * As such, this should not really be used by external programs for purposes
1867 * other than debugging.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001868 */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001869int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
1870 char *buf, size_t buflen);
1871
1872/**
1873 * p2p_peer_known - Check whether P2P peer is known
1874 * @p2p: P2P module context from p2p_init()
1875 * @addr: P2P Device Address of the peer
1876 * Returns: 1 if the specified device is in the P2P peer table or 0 if not
1877 */
1878int p2p_peer_known(struct p2p_data *p2p, const u8 *addr);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001879
1880/**
1881 * p2p_set_client_discoverability - Set client discoverability capability
1882 * @p2p: P2P module context from p2p_init()
1883 * @enabled: Whether client discoverability will be enabled
1884 *
1885 * This function can be used to disable (and re-enable) client discoverability.
1886 * This capability is enabled by default and should not be disabled in normal
1887 * use cases, i.e., this is mainly for testing purposes.
1888 */
1889void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled);
1890
1891/**
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001892 * p2p_set_managed_oper - Set managed P2P Device operations capability
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001893 * @p2p: P2P module context from p2p_init()
1894 * @enabled: Whether managed P2P Device operations will be enabled
1895 */
1896void p2p_set_managed_oper(struct p2p_data *p2p, int enabled);
1897
Dmitry Shmidt661b4f72014-09-29 14:58:27 -07001898/**
1899 * p2p_config_get_random_social - Return a random social channel
1900 * @p2p: P2P config
1901 * @op_class: Selected operating class
1902 * @op_channel: Selected social channel
1903 * Returns: 0 on success, -1 on failure
1904 *
1905 * This function is used before p2p_init is called. A random social channel
1906 * from supports bands 2.4 GHz (channels 1,6,11) and 60 GHz (channel 2) is
1907 * returned on success.
1908 */
1909int p2p_config_get_random_social(struct p2p_config *p2p, u8 *op_class,
1910 u8 *op_channel);
1911
Dmitry Shmidt43cb5782014-06-16 16:23:22 -07001912int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel,
1913 u8 forced);
1914
1915u8 p2p_get_listen_channel(struct p2p_data *p2p);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001916
1917int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len);
1918
1919int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
1920 u8 *iface_addr);
1921int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
1922 u8 *dev_addr);
1923
1924void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr);
1925
1926/**
1927 * p2p_set_cross_connect - Set cross connection capability
1928 * @p2p: P2P module context from p2p_init()
1929 * @enabled: Whether cross connection will be enabled
1930 */
1931void p2p_set_cross_connect(struct p2p_data *p2p, int enabled);
1932
1933int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr);
1934
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001935/**
1936 * p2p_set_intra_bss_dist - Set intra BSS distribution
1937 * @p2p: P2P module context from p2p_init()
1938 * @enabled: Whether intra BSS distribution will be enabled
1939 */
1940void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled);
1941
Dmitry Shmidt7a5e50a2013-03-05 12:37:16 -08001942int p2p_channels_includes_freq(const struct p2p_channels *channels,
1943 unsigned int freq);
1944
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08001945int p2p_channels_to_freqs(const struct p2p_channels *channels,
1946 int *freq_list, unsigned int max_len);
1947
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001948/**
1949 * p2p_supported_freq - Check whether channel is supported for P2P
1950 * @p2p: P2P module context from p2p_init()
1951 * @freq: Channel frequency in MHz
1952 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
1953 */
1954int p2p_supported_freq(struct p2p_data *p2p, unsigned int freq);
1955
Dmitry Shmidt44c95782013-05-17 09:51:35 -07001956/**
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -07001957 * p2p_supported_freq_go - Check whether channel is supported for P2P GO operation
1958 * @p2p: P2P module context from p2p_init()
1959 * @freq: Channel frequency in MHz
1960 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
1961 */
1962int p2p_supported_freq_go(struct p2p_data *p2p, unsigned int freq);
1963
1964/**
1965 * p2p_supported_freq_cli - Check whether channel is supported for P2P client operation
1966 * @p2p: P2P module context from p2p_init()
1967 * @freq: Channel frequency in MHz
1968 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
1969 */
1970int p2p_supported_freq_cli(struct p2p_data *p2p, unsigned int freq);
1971
1972/**
Dmitry Shmidt44c95782013-05-17 09:51:35 -07001973 * p2p_get_pref_freq - Get channel from preferred channel list
1974 * @p2p: P2P module context from p2p_init()
1975 * @channels: List of channels
1976 * Returns: Preferred channel
1977 */
1978unsigned int p2p_get_pref_freq(struct p2p_data *p2p,
1979 const struct p2p_channels *channels);
1980
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -07001981void p2p_update_channel_list(struct p2p_data *p2p,
1982 const struct p2p_channels *chan,
1983 const struct p2p_channels *cli_chan);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001984
1985/**
1986 * p2p_set_best_channels - Update best channel information
1987 * @p2p: P2P module context from p2p_init()
1988 * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band
1989 * @freq_5: Frequency (MHz) of best channel in 5 GHz band
1990 * @freq_overall: Frequency (MHz) of best channel overall
1991 */
1992void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
1993 int freq_overall);
1994
Dmitry Shmidt700a1372013-03-15 14:14:44 -07001995/**
1996 * p2p_set_own_freq_preference - Set own preference for channel
1997 * @p2p: P2P module context from p2p_init()
1998 * @freq: Frequency (MHz) of the preferred channel or 0 if no preference
1999 *
2000 * This function can be used to set a preference on the operating channel based
2001 * on frequencies used on the other virtual interfaces that share the same
2002 * radio. If non-zero, this is used to try to avoid multi-channel concurrency.
2003 */
2004void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq);
2005
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002006const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p);
2007
2008/**
2009 * p2p_get_group_num_members - Get number of members in group
2010 * @group: P2P group context from p2p_group_init()
2011 * Returns: Number of members in the group
2012 */
2013unsigned int p2p_get_group_num_members(struct p2p_group *group);
2014
2015/**
Dmitry Shmidt216983b2015-02-06 10:50:36 -08002016 * p2p_client_limit_reached - Check if client limit is reached
2017 * @group: P2P group context from p2p_group_init()
2018 * Returns: 1 if no of clients limit reached
2019 */
2020int p2p_client_limit_reached(struct p2p_group *group);
2021
2022/**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002023 * p2p_iterate_group_members - Iterate group members
2024 * @group: P2P group context from p2p_group_init()
2025 * @next: iteration pointer, must be a pointer to a void * that is set to %NULL
2026 * on the first call and not modified later
Dmitry Shmidtd30ac602014-06-30 09:54:22 -07002027 * Returns: A P2P Device Address for each call and %NULL for no more members
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002028 */
2029const u8 * p2p_iterate_group_members(struct p2p_group *group, void **next);
2030
2031/**
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002032 * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group
2033 * @group: P2P group context from p2p_group_init()
2034 * @addr: P2P Interface Address of the client
2035 * Returns: P2P Device Address of the client if found or %NULL if no match
2036 * found
2037 */
2038const u8 * p2p_group_get_dev_addr(struct p2p_group *group, const u8 *addr);
2039
2040/**
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002041 * p2p_group_is_client_connected - Check whether a specific client is connected
2042 * @group: P2P group context from p2p_group_init()
2043 * @addr: P2P Device Address of the client
2044 * Returns: 1 if client is connected or 0 if not
2045 */
2046int p2p_group_is_client_connected(struct p2p_group *group, const u8 *dev_addr);
2047
2048/**
Dmitry Shmidtd30ac602014-06-30 09:54:22 -07002049 * p2p_group_get_config - Get the group configuration
2050 * @group: P2P group context from p2p_group_init()
2051 * Returns: The group configuration pointer
2052 */
2053const struct p2p_group_config * p2p_group_get_config(struct p2p_group *group);
2054
2055/**
2056 * p2p_loop_on_all_groups - Run the given callback on all groups
2057 * @p2p: P2P module context from p2p_init()
2058 * @group_callback: The callback function pointer
2059 * @user_data: Some user data pointer which can be %NULL
2060 *
2061 * The group_callback function can stop the iteration by returning 0.
2062 */
2063void p2p_loop_on_all_groups(struct p2p_data *p2p,
2064 int (*group_callback)(struct p2p_group *group,
2065 void *user_data),
2066 void *user_data);
2067
2068/**
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002069 * p2p_get_peer_found - Get P2P peer info structure of a found peer
2070 * @p2p: P2P module context from p2p_init()
2071 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
2072 * @next: Whether to select the peer entry following the one indicated by addr
2073 * Returns: The first P2P peer info available or %NULL if no such peer exists
2074 */
2075const struct p2p_peer_info *
2076p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next);
2077
2078/**
2079 * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions
2080 * @p2p: P2P module context from p2p_init()
2081 */
2082void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p);
2083
2084/**
2085 * p2p_add_wps_vendor_extension - Add a WPS vendor extension
2086 * @p2p: P2P module context from p2p_init()
2087 * @vendor_ext: The vendor extensions to add
2088 * Returns: 0 on success, -1 on failure
2089 *
2090 * The wpabuf structures in the array are owned by the P2P
2091 * module after this call.
2092 */
2093int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
2094 const struct wpabuf *vendor_ext);
2095
Jouni Malinen75ecf522011-06-27 15:19:46 -07002096/**
2097 * p2p_set_oper_channel - Set the P2P operating channel
2098 * @p2p: P2P module context from p2p_init()
2099 * @op_reg_class: Operating regulatory class to set
2100 * @op_channel: operating channel to set
2101 * @cfg_op_channel : Whether op_channel is hardcoded in configuration
2102 * Returns: 0 on success, -1 on failure
2103 */
2104int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
2105 int cfg_op_channel);
2106
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002107/**
Dmitry Shmidt04949592012-07-19 12:16:46 -07002108 * p2p_set_pref_chan - Set P2P preferred channel list
2109 * @p2p: P2P module context from p2p_init()
2110 * @num_pref_chan: Number of entries in pref_chan list
2111 * @pref_chan: Preferred channels or %NULL to remove preferences
2112 * Returns: 0 on success, -1 on failure
2113 */
2114int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan,
2115 const struct p2p_channel *pref_chan);
2116
2117/**
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -07002118 * p2p_set_no_go_freq - Set no GO channel ranges
2119 * @p2p: P2P module context from p2p_init()
2120 * @list: Channel ranges or %NULL to remove restriction
2121 * Returns: 0 on success, -1 on failure
2122 */
2123int p2p_set_no_go_freq(struct p2p_data *p2p,
2124 const struct wpa_freq_range_list *list);
2125
2126/**
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002127 * p2p_in_progress - Check whether a P2P operation is progress
2128 * @p2p: P2P module context from p2p_init()
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002129 * Returns: 0 if P2P module is idle, 1 if an operation is in progress but not
2130 * in search state, or 2 if search state operation is in progress
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002131 */
2132int p2p_in_progress(struct p2p_data *p2p);
2133
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002134const char * p2p_wps_method_text(enum p2p_wps_method method);
2135
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002136/**
2137 * p2p_set_config_timeout - Set local config timeouts
2138 * @p2p: P2P module context from p2p_init()
2139 * @go_timeout: Time in 10 ms units it takes to start the GO mode
2140 * @client_timeout: Time in 10 ms units it takes to start the client mode
2141 */
2142void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout,
2143 u8 client_timeout);
2144
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002145int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie);
2146int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie);
2147int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie);
2148int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie);
2149int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie);
2150int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie);
2151int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie);
2152int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie);
2153int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem);
2154int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem);
2155int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p,
2156 const struct wpabuf *elem);
2157struct wpabuf * wifi_display_encaps(struct wpabuf *subelems);
2158
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08002159/**
2160 * p2p_set_disc_int - Set min/max discoverable interval for p2p_find
2161 * @p2p: P2P module context from p2p_init()
2162 * @min_disc_int: minDiscoverableInterval (in units of 100 TU); default 1
2163 * @max_disc_int: maxDiscoverableInterval (in units of 100 TU); default 3
2164 * @max_disc_tu: Maximum number of TUs (1.024 ms) for discoverable interval; or
2165 * -1 not to limit
2166 * Returns: 0 on success, or -1 on failure
2167 *
2168 * This function can be used to configure minDiscoverableInterval and
2169 * maxDiscoverableInterval parameters for the Listen state during device
2170 * discovery (p2p_find). A random number of 100 TU units is picked for each
2171 * Listen state iteration from [min_disc_int,max_disc_int] range.
2172 *
2173 * max_disc_tu can be used to futher limit the discoverable duration. However,
2174 * it should be noted that use of this parameter is not recommended since it
2175 * would not be compliant with the P2P specification.
2176 */
2177int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int,
2178 int max_disc_tu);
2179
Dmitry Shmidtb7b4d0e2013-08-26 12:09:05 -07002180/**
2181 * p2p_get_state_txt - Get current P2P state for debug purposes
2182 * @p2p: P2P module context from p2p_init()
2183 * Returns: Name of the current P2P module state
2184 *
2185 * It should be noted that the P2P module state names are internal information
2186 * and subject to change at any point, i.e., this information should be used
2187 * mainly for debugging purposes.
2188 */
2189const char * p2p_get_state_txt(struct p2p_data *p2p);
2190
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08002191struct wpabuf * p2p_build_nfc_handover_req(struct p2p_data *p2p,
2192 int client_freq,
2193 const u8 *go_dev_addr,
2194 const u8 *ssid, size_t ssid_len);
2195struct wpabuf * p2p_build_nfc_handover_sel(struct p2p_data *p2p,
2196 int client_freq,
2197 const u8 *go_dev_addr,
2198 const u8 *ssid, size_t ssid_len);
2199
2200struct p2p_nfc_params {
2201 int sel;
2202 const u8 *wsc_attr;
2203 size_t wsc_len;
2204 const u8 *p2p_attr;
2205 size_t p2p_len;
2206
2207 enum {
2208 NO_ACTION, JOIN_GROUP, AUTH_JOIN, INIT_GO_NEG, RESP_GO_NEG,
2209 BOTH_GO, PEER_CLIENT
2210 } next_step;
2211 struct p2p_peer_info *peer;
2212 u8 oob_dev_pw[WPS_OOB_PUBKEY_HASH_LEN + 2 +
2213 WPS_OOB_DEVICE_PASSWORD_LEN];
2214 size_t oob_dev_pw_len;
2215 int go_freq;
2216 u8 go_dev_addr[ETH_ALEN];
2217 u8 go_ssid[32];
2218 size_t go_ssid_len;
2219};
2220
2221int p2p_process_nfc_connection_handover(struct p2p_data *p2p,
2222 struct p2p_nfc_params *params);
2223
2224void p2p_set_authorized_oob_dev_pw_id(struct p2p_data *p2p, u16 dev_pw_id,
2225 int go_intent,
2226 const u8 *own_interface_addr);
2227
Dmitry Shmidt2271d3f2014-06-23 12:16:31 -07002228int p2p_set_passphrase_len(struct p2p_data *p2p, unsigned int len);
2229
Dmitry Shmidtd30ac602014-06-30 09:54:22 -07002230void p2p_loop_on_known_peers(struct p2p_data *p2p,
2231 void (*peer_callback)(struct p2p_peer_info *peer,
2232 void *user_data),
2233 void *user_data);
2234
Dmitry Shmidt2e67f062014-07-16 09:55:28 -07002235void p2p_set_vendor_elems(struct p2p_data *p2p, struct wpabuf **vendor_elem);
2236
Dmitry Shmidt216983b2015-02-06 10:50:36 -08002237void p2p_set_intended_addr(struct p2p_data *p2p, const u8 *intended_addr);
2238
2239struct p2ps_advertisement *
2240p2p_service_p2ps_id(struct p2p_data *p2p, u32 adv_id);
2241int p2p_service_add_asp(struct p2p_data *p2p, int auto_accept, u32 adv_id,
2242 const char *adv_str, u8 svc_state,
2243 u16 config_methods, const char *svc_info);
2244int p2p_service_del_asp(struct p2p_data *p2p, u32 adv_id);
2245struct p2ps_advertisement * p2p_get_p2ps_adv_list(struct p2p_data *p2p);
2246
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002247#endif /* P2P_H */