2 * Wi-Fi Direct - P2P module
3 * Copyright (c) 2009-2010, Atheros Communications
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
13 * P2P_MAX_REG_CLASSES - Maximum number of regulatory classes
15 #define P2P_MAX_REG_CLASSES 10
18 * P2P_MAX_REG_CLASS_CHANNELS - Maximum number of channels per regulatory class
20 #define P2P_MAX_REG_CLASS_CHANNELS 20
23 * struct p2p_channels - List of supported channels
27 * struct p2p_reg_class - Supported regulatory class
29 struct p2p_reg_class {
31 * reg_class - Regulatory class (IEEE 802.11-2007, Annex J)
36 * channel - Supported channels
38 u8 channel[P2P_MAX_REG_CLASS_CHANNELS];
41 * channels - Number of channel entries in use
44 } reg_class[P2P_MAX_REG_CLASSES];
47 * reg_classes - Number of reg_class entries in use
53 WPS_NOT_READY, WPS_PIN_DISPLAY, WPS_PIN_KEYPAD, WPS_PBC
57 * struct p2p_go_neg_results - P2P Group Owner Negotiation results
59 struct p2p_go_neg_results {
61 * status - Negotiation result (Status Code)
63 * 0 (P2P_SC_SUCCESS) indicates success. Non-zero values indicate
69 * role_go - Whether local end is Group Owner
74 * freq - Frequency of the group operational channel in MHz
79 * ssid - SSID of the group
84 * ssid_len - Length of SSID in octets
89 * passphrase - WPA2-Personal passphrase for the group (GO only)
94 * peer_device_addr - P2P Device Address of the peer
96 u8 peer_device_addr[ETH_ALEN];
99 * peer_interface_addr - P2P Interface Address of the peer
101 u8 peer_interface_addr[ETH_ALEN];
104 * wps_method - WPS method to be used during provisioning
106 enum p2p_wps_method wps_method;
108 #define P2P_MAX_CHANNELS 50
111 * freq_list - Zero-terminated list of possible operational channels
113 int freq_list[P2P_MAX_CHANNELS];
116 * persistent_group - Whether the group should be made persistent
118 * 1 = persistent group without persistent reconnect
119 * 2 = persistent group with persistent reconnect
121 int persistent_group;
124 * peer_config_timeout - Peer configuration timeout (in 10 msec units)
126 unsigned int peer_config_timeout;
134 P2P_SCAN_SOCIAL_PLUS_ONE
137 #define P2P_MAX_WPS_VENDOR_EXT 10
140 * struct p2p_peer_info - P2P peer information
142 struct p2p_peer_info {
144 * p2p_device_addr - P2P Device Address of the peer
146 u8 p2p_device_addr[ETH_ALEN];
149 * pri_dev_type - Primary Device Type
154 * device_name - Device Name (0..32 octets encoded in UTF-8)
156 char device_name[33];
159 * manufacturer - Manufacturer (0..64 octets encoded in UTF-8)
161 char manufacturer[65];
164 * model_name - Model Name (0..32 octets encoded in UTF-8)
169 * model_number - Model Number (0..32 octets encoded in UTF-8)
171 char model_number[33];
174 * serial_number - Serial Number (0..32 octets encoded in UTF-8)
176 char serial_number[33];
179 * level - Signal level
184 * config_methods - WPS Configuration Methods
189 * dev_capab - Device Capabilities
194 * group_capab - Group Capabilities
199 * wps_sec_dev_type_list - WPS secondary device type list
201 * This list includes from 0 to 16 Secondary Device Types as indicated
202 * by wps_sec_dev_type_list_len (8 * number of types).
204 u8 wps_sec_dev_type_list[128];
207 * wps_sec_dev_type_list_len - Length of secondary device type list
209 size_t wps_sec_dev_type_list_len;
211 struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT];
214 enum p2p_prov_disc_status {
215 P2P_PROV_DISC_SUCCESS,
216 P2P_PROV_DISC_TIMEOUT,
217 P2P_PROV_DISC_REJECTED,
226 * struct p2p_config - P2P configuration
228 * This configuration is provided to the P2P module during initialization with
233 * country - Country code to use in P2P operations
238 * reg_class - Regulatory class for own listen channel
243 * channel - Own listen channel
248 * Regulatory class for own operational channel
253 * op_channel - Own operational channel
258 * cfg_op_channel - Whether op_channel is hardcoded in configuration
263 * channels - Own supported regulatory classes and channels
265 * List of supposerted channels per regulatory class. The regulatory
266 * classes are defined in IEEE Std 802.11-2007 Annex J and the
267 * numbering of the clases depends on the configured country code.
269 struct p2p_channels channels;
272 * num_pref_chan - Number of pref_chan entries
274 unsigned int num_pref_chan;
277 * pref_chan - Preferred channels for GO Negotiation
279 struct p2p_channel *pref_chan;
282 * pri_dev_type - Primary Device Type (see WPS)
287 * P2P_SEC_DEVICE_TYPES - Maximum number of secondary device types
289 #define P2P_SEC_DEVICE_TYPES 5
292 * sec_dev_type - Optional secondary device types
294 u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8];
297 * num_sec_dev_types - Number of sec_dev_type entries
299 size_t num_sec_dev_types;
302 * dev_addr - P2P Device Address
304 u8 dev_addr[ETH_ALEN];
307 * dev_name - Device Name
320 * concurrent_operations - Whether concurrent operations are supported
322 int concurrent_operations;
325 * max_peers - Maximum number of discovered peers to remember
327 * If more peers are discovered, older entries will be removed to make
328 * room for the new ones.
333 * p2p_intra_bss - Intra BSS communication is supported
338 * ssid_postfix - Postfix data to add to the SSID
340 * This data will be added to the end of the SSID after the
341 * DIRECT-<random two octets> prefix.
343 u8 ssid_postfix[32 - 9];
346 * ssid_postfix_len - Length of the ssid_postfix data
348 size_t ssid_postfix_len;
351 * msg_ctx - Context to use with wpa_msg() calls
356 * cb_ctx - Context to use with callback functions
361 /* Callbacks to request lower layer driver operations */
364 * p2p_scan - Request a P2P scan/search
365 * @ctx: Callback context from cb_ctx
367 * @freq: Specific frequency (MHz) to scan or 0 for no restriction
368 * @num_req_dev_types: Number of requested device types
369 * @req_dev_types: Array containing requested device types
370 * @dev_id: Device ID to search for or %NULL to find all devices
371 * @pw_id: Device Password ID
372 * Returns: 0 on success, -1 on failure
374 * This callback function is used to request a P2P scan or search
375 * operation to be completed. Type type argument specifies which type
376 * of scan is to be done. @P2P_SCAN_SOCIAL indicates that only the
377 * social channels (1, 6, 11) should be scanned. @P2P_SCAN_FULL
378 * indicates that all channels are to be scanned.
379 * @P2P_SCAN_SOCIAL_PLUS_ONE request scan of all the social channels
380 * plus one extra channel specified by freq.
382 * The full scan is used for the initial scan to find group owners from
383 * all. The other types are used during search phase scan of the social
384 * channels (with potential variation if the Listen channel of the
385 * target peer is known or if other channels are scanned in steps).
387 * The scan results are returned after this call by calling
388 * p2p_scan_res_handler() for each scan result that has a P2P IE and
389 * then calling p2p_scan_res_handled() to indicate that all scan
390 * results have been indicated.
392 int (*p2p_scan)(void *ctx, enum p2p_scan_type type, int freq,
393 unsigned int num_req_dev_types,
394 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id);
397 * send_probe_resp - Transmit a Probe Response frame
398 * @ctx: Callback context from cb_ctx
399 * @buf: Probe Response frame (including the header and body)
400 * Returns: 0 on success, -1 on failure
402 * This function is used to reply to Probe Request frames that were
403 * indicated with a call to p2p_probe_req_rx(). The response is to be
404 * sent on the same channel or to be dropped if the driver is not
405 * anymore listening to Probe Request frames.
407 * Alternatively, the responsibility for building the Probe Response
408 * frames in Listen state may be in another system component in which
409 * case this function need to be implemented (i.e., the function
410 * pointer can be %NULL). The WPS and P2P IEs to be added for Probe
411 * Response frames in such a case are available from the
412 * start_listen() callback. It should be noted that the received Probe
413 * Request frames must be indicated by calling p2p_probe_req_rx() even
414 * if this send_probe_resp() is not used.
416 int (*send_probe_resp)(void *ctx, const struct wpabuf *buf);
419 * send_action - Transmit an Action frame
420 * @ctx: Callback context from cb_ctx
421 * @freq: Frequency in MHz for the channel on which to transmit
422 * @dst: Destination MAC address (Address 1)
423 * @src: Source MAC address (Address 2)
424 * @bssid: BSSID (Address 3)
425 * @buf: Frame body (starting from Category field)
426 * @len: Length of buf in octets
427 * @wait_time: How many msec to wait for a response frame
428 * Returns: 0 on success, -1 on failure
430 * The Action frame may not be transmitted immediately and the status
431 * of the transmission must be reported by calling
432 * p2p_send_action_cb() once the frame has either been transmitted or
433 * it has been dropped due to excessive retries or other failure to
436 int (*send_action)(void *ctx, unsigned int freq, const u8 *dst,
437 const u8 *src, const u8 *bssid, const u8 *buf,
438 size_t len, unsigned int wait_time);
441 * send_action_done - Notify that Action frame sequence was completed
442 * @ctx: Callback context from cb_ctx
444 * This function is called when the Action frame sequence that was
445 * started with send_action() has been completed, i.e., when there is
446 * no need to wait for a response from the destination peer anymore.
448 void (*send_action_done)(void *ctx);
451 * start_listen - Start Listen state
452 * @ctx: Callback context from cb_ctx
453 * @freq: Frequency of the listen channel in MHz
454 * @duration: Duration for the Listen state in milliseconds
455 * @probe_resp_ie: IE(s) to be added to Probe Response frames
456 * Returns: 0 on success, -1 on failure
458 * This Listen state may not start immediately since the driver may
459 * have other pending operations to complete first. Once the Listen
460 * state has started, p2p_listen_cb() must be called to notify the P2P
461 * module. Once the Listen state is stopped, p2p_listen_end() must be
462 * called to notify the P2P module that the driver is not in the Listen
465 * If the send_probe_resp() is not used for generating the response,
466 * the IEs from probe_resp_ie need to be added to the end of the Probe
467 * Response frame body. If send_probe_resp() is used, the probe_resp_ie
468 * information can be ignored.
470 int (*start_listen)(void *ctx, unsigned int freq,
471 unsigned int duration,
472 const struct wpabuf *probe_resp_ie);
474 * stop_listen - Stop Listen state
475 * @ctx: Callback context from cb_ctx
477 * This callback can be used to stop a Listen state operation that was
478 * previously requested with start_listen().
480 void (*stop_listen)(void *ctx);
483 * get_noa - Get current Notice of Absence attribute payload
484 * @ctx: Callback context from cb_ctx
485 * @interface_addr: P2P Interface Address of the GO
486 * @buf: Buffer for returning NoA
487 * @buf_len: Buffer length in octets
488 * Returns: Number of octets used in buf, 0 to indicate no NoA is being
489 * advertized, or -1 on failure
491 * This function is used to fetch the current Notice of Absence
492 * attribute value from GO.
494 int (*get_noa)(void *ctx, const u8 *interface_addr, u8 *buf,
497 /* Callbacks to notify events to upper layer management entity */
500 * dev_found - Notification of a found P2P Device
501 * @ctx: Callback context from cb_ctx
502 * @addr: Source address of the message triggering this notification
503 * @info: P2P peer information
504 * @new_device: Inform if the peer is newly found
506 * This callback is used to notify that a new P2P Device has been
507 * found. This may happen, e.g., during Search state based on scan
508 * results or during Listen state based on receive Probe Request and
509 * Group Owner Negotiation Request.
511 void (*dev_found)(void *ctx, const u8 *addr,
512 const struct p2p_peer_info *info,
516 * dev_lost - Notification of a lost P2P Device
517 * @ctx: Callback context from cb_ctx
518 * @dev_addr: P2P Device Address of the lost P2P Device
520 * This callback is used to notify that a P2P Device has been deleted.
522 void (*dev_lost)(void *ctx, const u8 *dev_addr);
525 * go_neg_req_rx - Notification of a receive GO Negotiation Request
526 * @ctx: Callback context from cb_ctx
527 * @src: Source address of the message triggering this notification
528 * @dev_passwd_id: WPS Device Password ID
530 * This callback is used to notify that a P2P Device is requesting
531 * group owner negotiation with us, but we do not have all the
532 * necessary information to start GO Negotiation. This indicates that
533 * the local user has not authorized the connection yet by providing a
534 * PIN or PBC button press. This information can be provided with a
535 * call to p2p_connect().
537 void (*go_neg_req_rx)(void *ctx, const u8 *src, u16 dev_passwd_id);
540 * go_neg_completed - Notification of GO Negotiation results
541 * @ctx: Callback context from cb_ctx
542 * @res: GO Negotiation results
544 * This callback is used to notify that Group Owner Negotiation has
545 * been completed. Non-zero struct p2p_go_neg_results::status indicates
546 * failed negotiation. In case of success, this function is responsible
547 * for creating a new group interface (or using the existing interface
548 * depending on driver features), setting up the group interface in
549 * proper mode based on struct p2p_go_neg_results::role_go and
550 * initializing WPS provisioning either as a Registrar (if GO) or as an
551 * Enrollee. Successful WPS provisioning must be indicated by calling
552 * p2p_wps_success_cb(). The callee is responsible for timing out group
553 * formation if WPS provisioning cannot be completed successfully
556 void (*go_neg_completed)(void *ctx, struct p2p_go_neg_results *res);
559 * sd_request - Callback on Service Discovery Request
560 * @ctx: Callback context from cb_ctx
561 * @freq: Frequency (in MHz) of the channel
562 * @sa: Source address of the request
563 * @dialog_token: Dialog token
564 * @update_indic: Service Update Indicator from the source of request
565 * @tlvs: P2P Service Request TLV(s)
566 * @tlvs_len: Length of tlvs buffer in octets
568 * This callback is used to indicate reception of a service discovery
569 * request. Response to the query must be indicated by calling
570 * p2p_sd_response() with the context information from the arguments to
571 * this callback function.
573 * This callback handler can be set to %NULL to indicate that service
574 * discovery is not supported.
576 void (*sd_request)(void *ctx, int freq, const u8 *sa, u8 dialog_token,
577 u16 update_indic, const u8 *tlvs, size_t tlvs_len);
580 * sd_response - Callback on Service Discovery Response
581 * @ctx: Callback context from cb_ctx
582 * @sa: Source address of the request
583 * @update_indic: Service Update Indicator from the source of response
584 * @tlvs: P2P Service Response TLV(s)
585 * @tlvs_len: Length of tlvs buffer in octets
587 * This callback is used to indicate reception of a service discovery
588 * response. This callback handler can be set to %NULL if no service
589 * discovery requests are used. The information provided with this call
590 * is replies to the queries scheduled with p2p_sd_request().
592 void (*sd_response)(void *ctx, const u8 *sa, u16 update_indic,
593 const u8 *tlvs, size_t tlvs_len);
596 * prov_disc_req - Callback on Provisiong Discovery Request
597 * @ctx: Callback context from cb_ctx
598 * @peer: Source address of the request
599 * @config_methods: Requested WPS Config Method
600 * @dev_addr: P2P Device Address of the found P2P Device
601 * @pri_dev_type: Primary Device Type
602 * @dev_name: Device Name
603 * @supp_config_methods: Supported configuration Methods
604 * @dev_capab: Device Capabilities
605 * @group_capab: Group Capabilities
606 * @group_id: P2P Group ID (or %NULL if not included)
607 * @group_id_len: Length of P2P Group ID
609 * This callback is used to indicate reception of a Provision Discovery
610 * Request frame that the P2P module accepted.
612 void (*prov_disc_req)(void *ctx, const u8 *peer, u16 config_methods,
613 const u8 *dev_addr, const u8 *pri_dev_type,
614 const char *dev_name, u16 supp_config_methods,
615 u8 dev_capab, u8 group_capab,
616 const u8 *group_id, size_t group_id_len);
619 * prov_disc_resp - Callback on Provisiong Discovery Response
620 * @ctx: Callback context from cb_ctx
621 * @peer: Source address of the response
622 * @config_methods: Value from p2p_prov_disc_req() or 0 on failure
624 * This callback is used to indicate reception of a Provision Discovery
625 * Response frame for a pending request scheduled with
626 * p2p_prov_disc_req(). This callback handler can be set to %NULL if
627 * provision discovery is not used.
629 void (*prov_disc_resp)(void *ctx, const u8 *peer, u16 config_methods);
632 * prov_disc_fail - Callback on Provision Discovery failure
633 * @ctx: Callback context from cb_ctx
634 * @peer: Source address of the response
635 * @status: Cause of failure, will not be %P2P_PROV_DISC_SUCCESS
637 * This callback is used to indicate either a failure or no response
638 * to an earlier provision discovery request.
640 * This callback handler can be set to %NULL if provision discovery
641 * is not used or failures do not need to be indicated.
643 void (*prov_disc_fail)(void *ctx, const u8 *peer,
644 enum p2p_prov_disc_status status);
647 * invitation_process - Optional callback for processing Invitations
648 * @ctx: Callback context from cb_ctx
649 * @sa: Source address of the Invitation Request
650 * @bssid: P2P Group BSSID from the request or %NULL if not included
651 * @go_dev_addr: GO Device Address from P2P Group ID
652 * @ssid: SSID from P2P Group ID
653 * @ssid_len: Length of ssid buffer in octets
654 * @go: Variable for returning whether the local end is GO in the group
655 * @group_bssid: Buffer for returning P2P Group BSSID (if local end GO)
656 * @force_freq: Variable for returning forced frequency for the group
657 * @persistent_group: Whether this is an invitation to reinvoke a
658 * persistent group (instead of invitation to join an active
660 * Returns: Status code (P2P_SC_*)
662 * This optional callback can be used to implement persistent reconnect
663 * by allowing automatic restarting of persistent groups without user
664 * interaction. If this callback is not implemented (i.e., is %NULL),
665 * the received Invitation Request frames are replied with
666 * %P2P_SC_REQ_RECEIVED status and indicated to upper layer with the
667 * invitation_result() callback.
669 * If the requested parameters are acceptable and the group is known,
670 * %P2P_SC_SUCCESS may be returned. If the requested group is unknown,
671 * %P2P_SC_FAIL_UNKNOWN_GROUP should be returned. %P2P_SC_REQ_RECEIVED
672 * can be returned if there is not enough data to provide immediate
673 * response, i.e., if some sort of user interaction is needed. The
674 * invitation_received() callback will be called in that case
675 * immediately after this call.
677 u8 (*invitation_process)(void *ctx, const u8 *sa, const u8 *bssid,
678 const u8 *go_dev_addr, const u8 *ssid,
679 size_t ssid_len, int *go, u8 *group_bssid,
680 int *force_freq, int persistent_group);
683 * invitation_received - Callback on Invitation Request RX
684 * @ctx: Callback context from cb_ctx
685 * @sa: Source address of the Invitation Request
686 * @bssid: P2P Group BSSID or %NULL if not received
687 * @ssid: SSID of the group
688 * @ssid_len: Length of ssid in octets
689 * @go_dev_addr: GO Device Address
690 * @status: Response Status
691 * @op_freq: Operational frequency for the group
693 * This callback is used to indicate sending of an Invitation Response
694 * for a received Invitation Request. If status == 0 (success), the
695 * upper layer code is responsible for starting the group. status == 1
696 * indicates need to get user authorization for the group. Other status
697 * values indicate that the invitation request was rejected.
699 void (*invitation_received)(void *ctx, const u8 *sa, const u8 *bssid,
700 const u8 *ssid, size_t ssid_len,
701 const u8 *go_dev_addr, u8 status,
705 * invitation_result - Callback on Invitation result
706 * @ctx: Callback context from cb_ctx
707 * @status: Negotiation result (Status Code)
708 * @bssid: P2P Group BSSID or %NULL if not received
710 * This callback is used to indicate result of an Invitation procedure
711 * started with a call to p2p_invite(). The indicated status code is
712 * the value received from the peer in Invitation Response with 0
713 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a
714 * local failure in transmitting the Invitation Request.
716 void (*invitation_result)(void *ctx, int status, const u8 *bssid);
719 * go_connected - Check whether we are connected to a GO
720 * @ctx: Callback context from cb_ctx
721 * @dev_addr: P2P Device Address of a GO
722 * Returns: 1 if we are connected as a P2P client to the specified GO
725 int (*go_connected)(void *ctx, const u8 *dev_addr);
729 /* P2P module initialization/deinitialization */
732 * p2p_init - Initialize P2P module
733 * @cfg: P2P module configuration
734 * Returns: Pointer to private data or %NULL on failure
736 * This function is used to initialize global P2P module context (one per
737 * device). The P2P module will keep a copy of the configuration data, so the
738 * caller does not need to maintain this structure. However, the callback
739 * functions and the context parameters to them must be kept available until
740 * the P2P module is deinitialized with p2p_deinit().
742 struct p2p_data * p2p_init(const struct p2p_config *cfg);
745 * p2p_deinit - Deinitialize P2P module
746 * @p2p: P2P module context from p2p_init()
748 void p2p_deinit(struct p2p_data *p2p);
751 * p2p_flush - Flush P2P module state
752 * @p2p: P2P module context from p2p_init()
754 * This command removes the P2P module state like peer device entries.
756 void p2p_flush(struct p2p_data *p2p);
759 * p2p_unauthorize - Unauthorize the specified peer device
760 * @p2p: P2P module context from p2p_init()
761 * @addr: P2P peer entry to be unauthorized
762 * Returns: 0 on success, -1 on failure
764 * This command removes any connection authorization from the specified P2P
765 * peer device address. This can be used, e.g., to cancel effect of a previous
766 * p2p_authorize() or p2p_connect() call that has not yet resulted in completed
769 int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr);
772 * p2p_set_dev_name - Set device name
773 * @p2p: P2P module context from p2p_init()
774 * Returns: 0 on success, -1 on failure
776 * This function can be used to update the P2P module configuration with
777 * information that was not available at the time of the p2p_init() call.
779 int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name);
781 int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer);
782 int p2p_set_model_name(struct p2p_data *p2p, const char *model_name);
783 int p2p_set_model_number(struct p2p_data *p2p, const char *model_number);
784 int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number);
786 void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods);
787 void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid);
790 * p2p_set_pri_dev_type - Set primary device type
791 * @p2p: P2P module context from p2p_init()
792 * Returns: 0 on success, -1 on failure
794 * This function can be used to update the P2P module configuration with
795 * information that was not available at the time of the p2p_init() call.
797 int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type);
800 * p2p_set_sec_dev_types - Set secondary device types
801 * @p2p: P2P module context from p2p_init()
802 * Returns: 0 on success, -1 on failure
804 * This function can be used to update the P2P module configuration with
805 * information that was not available at the time of the p2p_init() call.
807 int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
808 size_t num_dev_types);
810 int p2p_set_country(struct p2p_data *p2p, const char *country);
813 /* Commands from upper layer management entity */
815 enum p2p_discovery_type {
816 P2P_FIND_START_WITH_FULL,
817 P2P_FIND_ONLY_SOCIAL,
822 * p2p_find - Start P2P Find (Device Discovery)
823 * @p2p: P2P module context from p2p_init()
824 * @timeout: Timeout for find operation in seconds or 0 for no timeout
825 * @type: Device Discovery type
826 * @num_req_dev_types: Number of requested device types
827 * @req_dev_types: Requested device types array, must be an array
828 * containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no
829 * requested device types.
830 * @dev_id: Device ID to search for or %NULL to find all devices
831 * Returns: 0 on success, -1 on failure
833 int p2p_find(struct p2p_data *p2p, unsigned int timeout,
834 enum p2p_discovery_type type,
835 unsigned int num_req_dev_types, const u8 *req_dev_types,
839 * p2p_stop_find - Stop P2P Find (Device Discovery)
840 * @p2p: P2P module context from p2p_init()
842 void p2p_stop_find(struct p2p_data *p2p);
845 * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq
846 * @p2p: P2P module context from p2p_init()
847 * @freq: Frequency in MHz for next operation
849 * This is like p2p_stop_find(), but Listen state is not stopped if we are
850 * already on the same frequency.
852 void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq);
855 * p2p_listen - Start P2P Listen state for specified duration
856 * @p2p: P2P module context from p2p_init()
857 * @timeout: Listen state duration in milliseconds
858 * Returns: 0 on success, -1 on failure
860 * This function can be used to request the P2P module to keep the device
861 * discoverable on the listen channel for an extended set of time. At least in
862 * its current form, this is mainly used for testing purposes and may not be of
863 * much use for normal P2P operations.
865 int p2p_listen(struct p2p_data *p2p, unsigned int timeout);
868 * p2p_connect - Start P2P group formation (GO negotiation)
869 * @p2p: P2P module context from p2p_init()
870 * @peer_addr: MAC address of the peer P2P client
871 * @wps_method: WPS method to be used in provisioning
872 * @go_intent: Local GO intent value (1..15)
873 * @own_interface_addr: Intended interface address to use with the group
874 * @force_freq: The only allowed channel frequency in MHz or 0
875 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
876 * persistent group without persistent reconnect, 2 = persistent group with
877 * persistent reconnect)
878 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
880 * @force_ssid_len: Length of $force_ssid buffer
881 * @pd_before_go_neg: Whether to send Provision Discovery prior to GO
882 * Negotiation as an interoperability workaround when initiating group
884 * Returns: 0 on success, -1 on failure
886 int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
887 enum p2p_wps_method wps_method,
888 int go_intent, const u8 *own_interface_addr,
889 unsigned int force_freq, int persistent_group,
890 const u8 *force_ssid, size_t force_ssid_len,
891 int pd_before_go_neg);
894 * p2p_authorize - Authorize P2P group formation (GO negotiation)
895 * @p2p: P2P module context from p2p_init()
896 * @peer_addr: MAC address of the peer P2P client
897 * @wps_method: WPS method to be used in provisioning
898 * @go_intent: Local GO intent value (1..15)
899 * @own_interface_addr: Intended interface address to use with the group
900 * @force_freq: The only allowed channel frequency in MHz or 0
901 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
902 * persistent group without persistent reconnect, 2 = persistent group with
903 * persistent reconnect)
904 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
906 * @force_ssid_len: Length of $force_ssid buffer
907 * Returns: 0 on success, -1 on failure
909 * This is like p2p_connect(), but the actual group negotiation is not
910 * initiated automatically, i.e., the other end is expected to do that.
912 int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
913 enum p2p_wps_method wps_method,
914 int go_intent, const u8 *own_interface_addr,
915 unsigned int force_freq, int persistent_group,
916 const u8 *force_ssid, size_t force_ssid_len);
919 * p2p_reject - Reject peer device (explicitly block connection attempts)
920 * @p2p: P2P module context from p2p_init()
921 * @peer_addr: MAC address of the peer P2P client
922 * Returns: 0 on success, -1 on failure
924 int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr);
927 * p2p_prov_disc_req - Send Provision Discovery Request
928 * @p2p: P2P module context from p2p_init()
929 * @peer_addr: MAC address of the peer P2P client
930 * @config_methods: WPS Config Methods value (only one bit set)
931 * @join: Whether this is used by a client joining an active group
932 * @force_freq: Forced TX frequency for the frame (mainly for the join case)
933 * Returns: 0 on success, -1 on failure
935 * This function can be used to request a discovered P2P peer to display a PIN
936 * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us
937 * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame
938 * is transmitted once immediately and if no response is received, the frame
939 * will be sent again whenever the target device is discovered during device
940 * dsicovery (start with a p2p_find() call). Response from the peer is
941 * indicated with the p2p_config::prov_disc_resp() callback.
943 int p2p_prov_disc_req(struct p2p_data *p2p, const u8 *peer_addr,
944 u16 config_methods, int join, int force_freq);
947 * p2p_sd_request - Schedule a service discovery query
948 * @p2p: P2P module context from p2p_init()
949 * @dst: Destination peer or %NULL to apply for all peers
950 * @tlvs: P2P Service Query TLV(s)
951 * Returns: Reference to the query or %NULL on failure
953 * Response to the query is indicated with the p2p_config::sd_response()
956 void * p2p_sd_request(struct p2p_data *p2p, const u8 *dst,
957 const struct wpabuf *tlvs);
960 * p2p_sd_cancel_request - Cancel a pending service discovery query
961 * @p2p: P2P module context from p2p_init()
962 * @req: Query reference from p2p_sd_request()
963 * Returns: 0 if request for cancelled; -1 if not found
965 int p2p_sd_cancel_request(struct p2p_data *p2p, void *req);
968 * p2p_sd_response - Send response to a service discovery query
969 * @p2p: P2P module context from p2p_init()
970 * @freq: Frequency from p2p_config::sd_request() callback
971 * @dst: Destination address from p2p_config::sd_request() callback
972 * @dialog_token: Dialog token from p2p_config::sd_request() callback
973 * @resp_tlvs: P2P Service Response TLV(s)
975 * This function is called as a response to the request indicated with
976 * p2p_config::sd_request() callback.
978 void p2p_sd_response(struct p2p_data *p2p, int freq, const u8 *dst,
979 u8 dialog_token, const struct wpabuf *resp_tlvs);
982 * p2p_sd_service_update - Indicate a change in local services
983 * @p2p: P2P module context from p2p_init()
985 * This function needs to be called whenever there is a change in availability
986 * of the local services. This will increment the Service Update Indicator
987 * value which will be used in SD Request and Response frames.
989 void p2p_sd_service_update(struct p2p_data *p2p);
992 enum p2p_invite_role {
994 P2P_INVITE_ROLE_ACTIVE_GO,
995 P2P_INVITE_ROLE_CLIENT
999 * p2p_invite - Invite a P2P Device into a group
1000 * @p2p: P2P module context from p2p_init()
1001 * @peer: Device Address of the peer P2P Device
1002 * @role: Local role in the group
1003 * @bssid: Group BSSID or %NULL if not known
1005 * @ssid_len: Length of ssid in octets
1006 * @force_freq: The only allowed channel frequency in MHz or 0
1007 * @go_dev_addr: Forced GO Device Address or %NULL if none
1008 * @persistent_group: Whether this is to reinvoke a persistent group
1009 * Returns: 0 on success, -1 on failure
1011 int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role,
1012 const u8 *bssid, const u8 *ssid, size_t ssid_len,
1013 unsigned int force_freq, const u8 *go_dev_addr,
1014 int persistent_group);
1017 * p2p_presence_req - Request GO presence
1018 * @p2p: P2P module context from p2p_init()
1019 * @go_interface_addr: GO P2P Interface Address
1020 * @own_interface_addr: Own P2P Interface Address for this group
1021 * @freq: Group operating frequence (in MHz)
1022 * @duration1: Preferred presence duration in microseconds
1023 * @interval1: Preferred presence interval in microseconds
1024 * @duration2: Acceptable presence duration in microseconds
1025 * @interval2: Acceptable presence interval in microseconds
1026 * Returns: 0 on success, -1 on failure
1028 * If both duration and interval values are zero, the parameter pair is not
1029 * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0).
1031 int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
1032 const u8 *own_interface_addr, unsigned int freq,
1033 u32 duration1, u32 interval1, u32 duration2,
1037 * p2p_ext_listen - Set Extended Listen Timing
1038 * @p2p: P2P module context from p2p_init()
1039 * @freq: Group operating frequence (in MHz)
1040 * @period: Availability period in milliseconds (1-65535; 0 to disable)
1041 * @interval: Availability interval in milliseconds (1-65535; 0 to disable)
1042 * Returns: 0 on success, -1 on failure
1044 * This function can be used to enable or disable (period = interval = 0)
1045 * Extended Listen Timing. When enabled, the P2P Device will become
1046 * discoverable (go into Listen State) every @interval milliseconds for at
1047 * least @period milliseconds.
1049 int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
1050 unsigned int interval);
1052 /* Event notifications from upper layer management operations */
1055 * p2p_wps_success_cb - Report successfully completed WPS provisioning
1056 * @p2p: P2P module context from p2p_init()
1057 * @mac_addr: Peer address
1059 * This function is used to report successfully completed WPS provisioning
1060 * during group formation in both GO/Registrar and client/Enrollee roles.
1062 void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr);
1065 * p2p_group_formation_failed - Report failed WPS provisioning
1066 * @p2p: P2P module context from p2p_init()
1068 * This function is used to report failed group formation. This can happen
1069 * either due to failed WPS provisioning or due to 15 second timeout during
1070 * the provisioning phase.
1072 void p2p_group_formation_failed(struct p2p_data *p2p);
1075 * p2p_get_provisioning_info - Get any stored provisioning info
1076 * @p2p: P2P module context from p2p_init()
1077 * @addr: Peer P2P Device Address
1078 * Returns: WPS provisioning information (WPS config method) or 0 if no
1079 * information is available
1081 * This function is used to retrieve stored WPS provisioning info for the given
1084 u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr);
1087 * p2p_clear_provisioning_info - Clear any stored provisioning info
1088 * @p2p: P2P module context from p2p_init()
1089 * @iface_addr: Peer P2P Device Address
1091 * This function is used to clear stored WPS provisioning info for the given
1094 void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr);
1097 /* Event notifications from lower layer driver operations */
1100 * enum p2p_probe_req_status
1102 * @P2P_PREQ_MALFORMED: frame was not well-formed
1103 * @P2P_PREQ_NOT_LISTEN: device isn't in listen state, frame ignored
1104 * @P2P_PREQ_NOT_P2P: frame was not a P2P probe request
1105 * @P2P_PREQ_P2P_NOT_PROCESSED: frame was P2P but wasn't processed
1106 * @P2P_PREQ_P2P_PROCESSED: frame has been processed by P2P
1108 enum p2p_probe_req_status {
1110 P2P_PREQ_NOT_LISTEN,
1112 P2P_PREQ_NOT_PROCESSED,
1117 * p2p_probe_req_rx - Report reception of a Probe Request frame
1118 * @p2p: P2P module context from p2p_init()
1119 * @addr: Source MAC address
1120 * @dst: Destination MAC address if available or %NULL
1121 * @bssid: BSSID if available or %NULL
1122 * @ie: Information elements from the Probe Request frame body
1123 * @ie_len: Length of ie buffer in octets
1124 * Returns: value indicating the type and status of the probe request
1126 enum p2p_probe_req_status
1127 p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
1128 const u8 *bssid, const u8 *ie, size_t ie_len);
1131 * p2p_rx_action - Report received Action frame
1132 * @p2p: P2P module context from p2p_init()
1133 * @da: Destination address of the received Action frame
1134 * @sa: Source address of the received Action frame
1135 * @bssid: Address 3 of the received Action frame
1136 * @category: Category of the received Action frame
1137 * @data: Action frame body after the Category field
1138 * @len: Length of the data buffer in octets
1139 * @freq: Frequency (in MHz) on which the frame was received
1141 void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1142 const u8 *bssid, u8 category,
1143 const u8 *data, size_t len, int freq);
1146 * p2p_scan_res_handler - Indicate a P2P scan results
1147 * @p2p: P2P module context from p2p_init()
1148 * @bssid: BSSID of the scan result
1149 * @freq: Frequency of the channel on which the device was found in MHz
1150 * @level: Signal level (signal strength of the received Beacon/Probe Response
1152 * @ies: Pointer to IEs from the scan result
1153 * @ies_len: Length of the ies buffer
1154 * Returns: 0 to continue or 1 to stop scan result indication
1156 * This function is called to indicate a scan result entry with P2P IE from a
1157 * scan requested with struct p2p_config::p2p_scan(). This can be called during
1158 * the actual scan process (i.e., whenever a new device is found) or as a
1159 * sequence of calls after the full scan has been completed. The former option
1160 * can result in optimized operations, but may not be supported by all
1161 * driver/firmware designs. The ies buffer need to include at least the P2P IE,
1162 * but it is recommended to include all IEs received from the device. The
1163 * caller does not need to check that the IEs contain a P2P IE before calling
1164 * this function since frames will be filtered internally if needed.
1166 * This function will return 1 if it wants to stop scan result iteration (and
1167 * scan in general if it is still in progress). This is used to allow faster
1168 * start of a pending operation, e.g., to start a pending GO negotiation.
1170 int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
1171 int level, const u8 *ies, size_t ies_len);
1174 * p2p_scan_res_handled - Indicate end of scan results
1175 * @p2p: P2P module context from p2p_init()
1177 * This function is called to indicate that all P2P scan results from a scan
1178 * have been reported with zero or more calls to p2p_scan_res_handler(). This
1179 * function must be called as a response to successful
1180 * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler()
1181 * calls stopped iteration.
1183 void p2p_scan_res_handled(struct p2p_data *p2p);
1185 enum p2p_send_action_result {
1186 P2P_SEND_ACTION_SUCCESS /* Frame was send and acknowledged */,
1187 P2P_SEND_ACTION_NO_ACK /* Frame was sent, but not acknowledged */,
1188 P2P_SEND_ACTION_FAILED /* Frame was not sent due to a failure */
1192 * p2p_send_action_cb - Notify TX status of an Action frame
1193 * @p2p: P2P module context from p2p_init()
1194 * @freq: Channel frequency in MHz
1195 * @dst: Destination MAC address (Address 1)
1196 * @src: Source MAC address (Address 2)
1197 * @bssid: BSSID (Address 3)
1198 * @result: Result of the transmission attempt
1200 * This function is used to indicate the result of an Action frame transmission
1201 * that was requested with struct p2p_config::send_action() callback.
1203 void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
1204 const u8 *src, const u8 *bssid,
1205 enum p2p_send_action_result result);
1208 * p2p_listen_cb - Indicate the start of a requested Listen state
1209 * @p2p: P2P module context from p2p_init()
1210 * @freq: Listen channel frequency in MHz
1211 * @duration: Duration for the Listen state in milliseconds
1213 * This function is used to indicate that a Listen state requested with
1214 * struct p2p_config::start_listen() callback has started.
1216 void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
1217 unsigned int duration);
1220 * p2p_listen_end - Indicate the end of a requested Listen state
1221 * @p2p: P2P module context from p2p_init()
1222 * @freq: Listen channel frequency in MHz
1223 * Returns: 0 if no operations were started, 1 if an operation was started
1225 * This function is used to indicate that a Listen state requested with
1226 * struct p2p_config::start_listen() callback has ended.
1228 int p2p_listen_end(struct p2p_data *p2p, unsigned int freq);
1230 void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
1231 const u8 *ie, size_t ie_len);
1233 void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
1234 const u8 *ie, size_t ie_len);
1237 /* Per-group P2P state for GO */
1242 * struct p2p_group_config - P2P group configuration
1244 * This configuration is provided to the P2P module during initialization of
1245 * the per-group information with p2p_group_init().
1247 struct p2p_group_config {
1249 * persistent_group - Whether the group is persistent
1250 * 0 = not a persistent group
1251 * 1 = persistent group without persistent reconnect
1252 * 2 = persistent group with persistent reconnect
1254 int persistent_group;
1257 * interface_addr - P2P Interface Address of the group
1259 u8 interface_addr[ETH_ALEN];
1262 * max_clients - Maximum number of clients in the group
1264 unsigned int max_clients;
1272 * ssid_len - Length of SSID
1277 * cb_ctx - Context to use with callback functions
1282 * ie_update - Notification of IE update
1283 * @ctx: Callback context from cb_ctx
1284 * @beacon_ies: P2P IE for Beacon frames or %NULL if no change
1285 * @proberesp_ies: P2P Ie for Probe Response frames
1287 * P2P module uses this callback function to notify whenever the P2P IE
1288 * in Beacon or Probe Response frames should be updated based on group
1291 * The callee is responsible for freeing the returned buffer(s) with
1294 void (*ie_update)(void *ctx, struct wpabuf *beacon_ies,
1295 struct wpabuf *proberesp_ies);
1298 * idle_update - Notification of changes in group idle state
1299 * @ctx: Callback context from cb_ctx
1300 * @idle: Whether the group is idle (no associated stations)
1302 void (*idle_update)(void *ctx, int idle);
1306 * p2p_group_init - Initialize P2P group
1307 * @p2p: P2P module context from p2p_init()
1308 * @config: P2P group configuration (will be freed by p2p_group_deinit())
1309 * Returns: Pointer to private data or %NULL on failure
1311 * This function is used to initialize per-group P2P module context. Currently,
1312 * this is only used to manage GO functionality and P2P clients do not need to
1313 * create an instance of this per-group information.
1315 struct p2p_group * p2p_group_init(struct p2p_data *p2p,
1316 struct p2p_group_config *config);
1319 * p2p_group_deinit - Deinitialize P2P group
1320 * @group: P2P group context from p2p_group_init()
1322 void p2p_group_deinit(struct p2p_group *group);
1325 * p2p_group_notif_assoc - Notification of P2P client association with GO
1326 * @group: P2P group context from p2p_group_init()
1327 * @addr: Interface address of the P2P client
1328 * @ie: IEs from the (Re)association Request frame
1329 * @len: Length of the ie buffer in octets
1330 * Returns: 0 on success, -1 on failure
1332 int p2p_group_notif_assoc(struct p2p_group *group, const u8 *addr,
1333 const u8 *ie, size_t len);
1336 * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response
1337 * @group: P2P group context from p2p_group_init()
1338 * @status: Status value (P2P_SC_SUCCESS if association succeeded)
1339 * Returns: P2P IE for (Re)association Response or %NULL on failure
1341 * The caller is responsible for freeing the returned buffer with
1344 struct wpabuf * p2p_group_assoc_resp_ie(struct p2p_group *group, u8 status);
1347 * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO
1348 * @group: P2P group context from p2p_group_init()
1349 * @addr: Interface address of the P2P client
1351 void p2p_group_notif_disassoc(struct p2p_group *group, const u8 *addr);
1354 * p2p_group_notif_formation_done - Notification of completed group formation
1355 * @group: P2P group context from p2p_group_init()
1357 void p2p_group_notif_formation_done(struct p2p_group *group);
1360 * p2p_group_notif_noa - Notification of NoA change
1361 * @group: P2P group context from p2p_group_init()
1362 * @noa: Notice of Absence attribute payload, %NULL if none
1363 * @noa_len: Length of noa buffer in octets
1364 * Returns: 0 on success, -1 on failure
1366 * Notify the P2P group management about a new NoA contents. This will be
1367 * inserted into the P2P IEs in Beacon and Probe Response frames with rest of
1368 * the group information.
1370 int p2p_group_notif_noa(struct p2p_group *group, const u8 *noa,
1374 * p2p_group_match_dev_type - Match device types in group with requested type
1375 * @group: P2P group context from p2p_group_init()
1376 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1377 * Returns: 1 on match, 0 on mismatch
1379 * This function can be used to match the Requested Device Type attribute in
1380 * WPS IE with the device types of a group member for deciding whether a GO
1381 * should reply to a Probe Request frame. Match will be reported if the WPS IE
1382 * is not requested any specific device type.
1384 int p2p_group_match_dev_type(struct p2p_group *group, struct wpabuf *wps);
1387 * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id
1389 int p2p_group_match_dev_id(struct p2p_group *group, struct wpabuf *p2p);
1392 * p2p_group_go_discover - Send GO Discoverability Request to a group client
1393 * @group: P2P group context from p2p_group_init()
1394 * Returns: 0 on success (frame scheduled); -1 if client was not found
1396 int p2p_group_go_discover(struct p2p_group *group, const u8 *dev_id,
1397 const u8 *searching_dev, int rx_freq);
1400 /* Generic helper functions */
1403 * p2p_ie_text - Build text format description of P2P IE
1405 * @buf: Buffer for returning text
1406 * @end: Pointer to the end of the buf area
1407 * Returns: Number of octets written to the buffer or -1 on failure
1409 * This function can be used to parse P2P IE contents into text format
1410 * field=value lines.
1412 int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end);
1415 * p2p_scan_result_text - Build text format description of P2P IE
1416 * @ies: Information elements from scan results
1417 * @ies_len: ies buffer length in octets
1418 * @buf: Buffer for returning text
1419 * @end: Pointer to the end of the buf area
1420 * Returns: Number of octets written to the buffer or -1 on failure
1422 * This function can be used to parse P2P IE contents into text format
1423 * field=value lines.
1425 int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end);
1428 * p2p_parse_dev_addr_in_p2p_ie - Parse P2P Device Address from a concatenated
1431 * @dev_addr: Buffer for returning P2P Device Address
1432 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1434 int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr);
1437 * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s)
1438 * @ies: Information elements from scan results
1439 * @ies_len: ies buffer length in octets
1440 * @dev_addr: Buffer for returning P2P Device Address
1441 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1443 int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr);
1446 * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame
1447 * @p2p: P2P module context from p2p_init()
1449 * @buf: Buffer for writing the P2P IE
1450 * @len: Maximum buf length in octets
1451 * @p2p_group: Whether this is for association with a P2P GO
1452 * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none
1453 * Returns: Number of octets written into buf or -1 on failure
1455 int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
1456 size_t len, int p2p_group, struct wpabuf *p2p_ie);
1459 * p2p_scan_ie - Build P2P IE for Probe Request
1460 * @p2p: P2P module context from p2p_init()
1461 * @ies: Buffer for writing P2P IE
1462 * @dev_id: Device ID to search for or %NULL for any
1464 void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id);
1467 * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie
1468 * @p2p: P2P module context from p2p_init()
1469 * Returns: Number of octets that p2p_scan_ie() may add to the buffer
1471 size_t p2p_scan_ie_buf_len(struct p2p_data *p2p);
1474 * p2p_go_params - Generate random P2P group parameters
1475 * @p2p: P2P module context from p2p_init()
1476 * @params: Buffer for parameters
1477 * Returns: 0 on success, -1 on failure
1479 int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params);
1482 * p2p_get_group_capab - Get Group Capability from P2P IE data
1483 * @p2p_ie: P2P IE(s) contents
1484 * Returns: Group Capability
1486 u8 p2p_get_group_capab(const struct wpabuf *p2p_ie);
1489 * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection
1490 * @p2p_ie: P2P IE(s) contents
1491 * Returns: 0 if cross connection is allow, 1 if not
1493 int p2p_get_cross_connect_disallowed(const struct wpabuf *p2p_ie);
1496 * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data
1497 * @p2p_ie: P2P IE(s) contents
1498 * Returns: Pointer to P2P Device Address or %NULL if not included
1500 const u8 * p2p_get_go_dev_addr(const struct wpabuf *p2p_ie);
1503 * p2p_get_peer_info - Get P2P peer information
1504 * @p2p: P2P module context from p2p_init()
1505 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1506 * @next: Whether to select the peer entry following the one indicated by addr
1507 * Returns: Pointer to peer info or %NULL if not found
1509 const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
1510 const u8 *addr, int next);
1513 * p2p_get_peer_info_txt - Get internal P2P peer information in text format
1514 * @info: Pointer to P2P peer info from p2p_get_peer_info()
1515 * @buf: Buffer for returning text
1516 * @buflen: Maximum buffer length
1517 * Returns: Number of octets written to the buffer or -1 on failure
1519 * Note: This information is internal to the P2P module and subject to change.
1520 * As such, this should not really be used by external programs for purposes
1521 * other than debugging.
1523 int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
1524 char *buf, size_t buflen);
1527 * p2p_peer_known - Check whether P2P peer is known
1528 * @p2p: P2P module context from p2p_init()
1529 * @addr: P2P Device Address of the peer
1530 * Returns: 1 if the specified device is in the P2P peer table or 0 if not
1532 int p2p_peer_known(struct p2p_data *p2p, const u8 *addr);
1535 * p2p_set_client_discoverability - Set client discoverability capability
1536 * @p2p: P2P module context from p2p_init()
1537 * @enabled: Whether client discoverability will be enabled
1539 * This function can be used to disable (and re-enable) client discoverability.
1540 * This capability is enabled by default and should not be disabled in normal
1541 * use cases, i.e., this is mainly for testing purposes.
1543 void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled);
1546 * p2p_set_managed_oper - Set managed P2P Device operations capability
1547 * @p2p: P2P module context from p2p_init()
1548 * @enabled: Whether managed P2P Device operations will be enabled
1550 void p2p_set_managed_oper(struct p2p_data *p2p, int enabled);
1552 int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel);
1554 int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len);
1556 int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
1558 int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
1561 void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr);
1564 * p2p_set_cross_connect - Set cross connection capability
1565 * @p2p: P2P module context from p2p_init()
1566 * @enabled: Whether cross connection will be enabled
1568 void p2p_set_cross_connect(struct p2p_data *p2p, int enabled);
1570 int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr);
1573 * p2p_set_intra_bss_dist - Set intra BSS distribution
1574 * @p2p: P2P module context from p2p_init()
1575 * @enabled: Whether intra BSS distribution will be enabled
1577 void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled);
1580 * p2p_supported_freq - Check whether channel is supported for P2P
1581 * @p2p: P2P module context from p2p_init()
1582 * @freq: Channel frequency in MHz
1583 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
1585 int p2p_supported_freq(struct p2p_data *p2p, unsigned int freq);
1587 void p2p_update_channel_list(struct p2p_data *p2p, struct p2p_channels *chan);
1590 * p2p_set_best_channels - Update best channel information
1591 * @p2p: P2P module context from p2p_init()
1592 * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band
1593 * @freq_5: Frequency (MHz) of best channel in 5 GHz band
1594 * @freq_overall: Frequency (MHz) of best channel overall
1596 void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
1599 const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p);
1602 * p2p_get_group_num_members - Get number of members in group
1603 * @group: P2P group context from p2p_group_init()
1604 * Returns: Number of members in the group
1606 unsigned int p2p_get_group_num_members(struct p2p_group *group);
1609 * p2p_iterate_group_members - Iterate group members
1610 * @group: P2P group context from p2p_group_init()
1611 * @next: iteration pointer, must be a pointer to a void * that is set to %NULL
1612 * on the first call and not modified later
1613 * Returns: A P2P Interface Address for each call and %NULL for no more members
1615 const u8 * p2p_iterate_group_members(struct p2p_group *group, void **next);
1618 * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group
1619 * @group: P2P group context from p2p_group_init()
1620 * @addr: P2P Interface Address of the client
1621 * Returns: P2P Device Address of the client if found or %NULL if no match
1624 const u8 * p2p_group_get_dev_addr(struct p2p_group *group, const u8 *addr);
1627 * p2p_group_is_client_connected - Check whether a specific client is connected
1628 * @group: P2P group context from p2p_group_init()
1629 * @addr: P2P Device Address of the client
1630 * Returns: 1 if client is connected or 0 if not
1632 int p2p_group_is_client_connected(struct p2p_group *group, const u8 *dev_addr);
1635 * p2p_get_peer_found - Get P2P peer info structure of a found peer
1636 * @p2p: P2P module context from p2p_init()
1637 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1638 * @next: Whether to select the peer entry following the one indicated by addr
1639 * Returns: The first P2P peer info available or %NULL if no such peer exists
1641 const struct p2p_peer_info *
1642 p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next);
1645 * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions
1646 * @p2p: P2P module context from p2p_init()
1648 void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p);
1651 * p2p_add_wps_vendor_extension - Add a WPS vendor extension
1652 * @p2p: P2P module context from p2p_init()
1653 * @vendor_ext: The vendor extensions to add
1654 * Returns: 0 on success, -1 on failure
1656 * The wpabuf structures in the array are owned by the P2P
1657 * module after this call.
1659 int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
1660 const struct wpabuf *vendor_ext);
1663 * p2p_set_oper_channel - Set the P2P operating channel
1664 * @p2p: P2P module context from p2p_init()
1665 * @op_reg_class: Operating regulatory class to set
1666 * @op_channel: operating channel to set
1667 * @cfg_op_channel : Whether op_channel is hardcoded in configuration
1668 * Returns: 0 on success, -1 on failure
1670 int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
1671 int cfg_op_channel);
1674 * p2p_set_pref_chan - Set P2P preferred channel list
1675 * @p2p: P2P module context from p2p_init()
1676 * @num_pref_chan: Number of entries in pref_chan list
1677 * @pref_chan: Preferred channels or %NULL to remove preferences
1678 * Returns: 0 on success, -1 on failure
1680 int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan,
1681 const struct p2p_channel *pref_chan);
1684 * p2p_in_progress - Check whether a P2P operation is progress
1685 * @p2p: P2P module context from p2p_init()
1686 * Returns: 0 if P2P module is idle or 1 if an operation is in progress
1688 int p2p_in_progress(struct p2p_data *p2p);
1692 * p2p_search_in_progress - Check whether a P2P SEARCH is in progress
1693 * @p2p: P2P module context from p2p_init()
1694 * Returns: 0 if P2P module is idle or 1 if an operation is in progress
1696 int p2p_search_in_progress(struct p2p_data *p2p);
1699 * p2p_search_pending - Check whether there is a deferred P2P SEARCH
1700 * @p2p: P2P module context from p2p_init()
1701 * Returns: 0 if there is no deferred P2P search or 1 if there is one
1703 int p2p_search_pending(struct p2p_data *p2p);
1707 * p2p_other_scan_completed - Notify completion of non-P2P scan
1708 * @p2p: P2P module context from p2p_init()
1709 * Returns: 0 if P2P module is idle or 1 if an operation was started
1711 int p2p_other_scan_completed(struct p2p_data *p2p);
1713 const char * p2p_wps_method_text(enum p2p_wps_method method);