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
83 * ssid - SSID of the group
88 * ssid_len - Length of SSID in octets
93 * psk - WPA pre-shared key (256 bits) (GO only)
98 * psk_set - Whether PSK field is configured (GO only)
103 * passphrase - WPA2-Personal passphrase for the group (GO only)
108 * peer_device_addr - P2P Device Address of the peer
110 u8 peer_device_addr[ETH_ALEN];
113 * peer_interface_addr - P2P Interface Address of the peer
115 u8 peer_interface_addr[ETH_ALEN];
118 * wps_method - WPS method to be used during provisioning
120 enum p2p_wps_method wps_method;
122 #define P2P_MAX_CHANNELS 50
125 * freq_list - Zero-terminated list of possible operational channels
127 int freq_list[P2P_MAX_CHANNELS];
130 * persistent_group - Whether the group should be made persistent
132 * 1 = persistent group without persistent reconnect
133 * 2 = persistent group with persistent reconnect
135 int persistent_group;
138 * peer_config_timeout - Peer configuration timeout (in 10 msec units)
140 unsigned int peer_config_timeout;
148 P2P_SCAN_SOCIAL_PLUS_ONE
151 #define P2P_MAX_WPS_VENDOR_EXT 10
154 * struct p2p_peer_info - P2P peer information
156 struct p2p_peer_info {
158 * p2p_device_addr - P2P Device Address of the peer
160 u8 p2p_device_addr[ETH_ALEN];
163 * pri_dev_type - Primary Device Type
168 * device_name - Device Name (0..32 octets encoded in UTF-8)
170 char device_name[33];
173 * manufacturer - Manufacturer (0..64 octets encoded in UTF-8)
175 char manufacturer[65];
178 * model_name - Model Name (0..32 octets encoded in UTF-8)
183 * model_number - Model Number (0..32 octets encoded in UTF-8)
185 char model_number[33];
188 * serial_number - Serial Number (0..32 octets encoded in UTF-8)
190 char serial_number[33];
193 * level - Signal level
198 * config_methods - WPS Configuration Methods
203 * dev_capab - Device Capabilities
208 * group_capab - Group Capabilities
213 * wps_sec_dev_type_list - WPS secondary device type list
215 * This list includes from 0 to 16 Secondary Device Types as indicated
216 * by wps_sec_dev_type_list_len (8 * number of types).
218 u8 wps_sec_dev_type_list[128];
221 * wps_sec_dev_type_list_len - Length of secondary device type list
223 size_t wps_sec_dev_type_list_len;
225 struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT];
228 * wfd_subelems - Wi-Fi Display subelements from WFD IE(s)
230 struct wpabuf *wfd_subelems;
233 enum p2p_prov_disc_status {
234 P2P_PROV_DISC_SUCCESS,
235 P2P_PROV_DISC_TIMEOUT,
236 P2P_PROV_DISC_REJECTED,
237 P2P_PROV_DISC_TIMEOUT_JOIN,
246 * struct p2p_config - P2P configuration
248 * This configuration is provided to the P2P module during initialization with
253 * country - Country code to use in P2P operations
258 * reg_class - Regulatory class for own listen channel
263 * channel - Own listen channel
268 * Regulatory class for own operational channel
273 * op_channel - Own operational channel
278 * cfg_op_channel - Whether op_channel is hardcoded in configuration
283 * channels - Own supported regulatory classes and channels
285 * List of supposerted channels per regulatory class. The regulatory
286 * classes are defined in IEEE Std 802.11-2007 Annex J and the
287 * numbering of the clases depends on the configured country code.
289 struct p2p_channels channels;
292 * cli_channels - Additional client channels
294 * This list of channels (if any) will be used when advertising local
295 * channels during GO Negotiation or Invitation for the cases where the
296 * local end may become the client. This may allow the peer to become a
297 * GO on additional channels if it supports these options. The main use
298 * case for this is to include passive-scan channels on devices that may
299 * not know their current location and have configured most channels to
300 * not allow initiation of radition (i.e., another device needs to take
301 * master responsibilities).
303 struct p2p_channels cli_channels;
306 * num_pref_chan - Number of pref_chan entries
308 unsigned int num_pref_chan;
311 * pref_chan - Preferred channels for GO Negotiation
313 struct p2p_channel *pref_chan;
316 * pri_dev_type - Primary Device Type (see WPS)
321 * P2P_SEC_DEVICE_TYPES - Maximum number of secondary device types
323 #define P2P_SEC_DEVICE_TYPES 5
326 * sec_dev_type - Optional secondary device types
328 u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8];
331 * num_sec_dev_types - Number of sec_dev_type entries
333 size_t num_sec_dev_types;
336 * dev_addr - P2P Device Address
338 u8 dev_addr[ETH_ALEN];
341 * dev_name - Device Name
354 * concurrent_operations - Whether concurrent operations are supported
356 int concurrent_operations;
359 * max_peers - Maximum number of discovered peers to remember
361 * If more peers are discovered, older entries will be removed to make
362 * room for the new ones.
367 * p2p_intra_bss - Intra BSS communication is supported
372 * ssid_postfix - Postfix data to add to the SSID
374 * This data will be added to the end of the SSID after the
375 * DIRECT-<random two octets> prefix.
377 u8 ssid_postfix[32 - 9];
380 * ssid_postfix_len - Length of the ssid_postfix data
382 size_t ssid_postfix_len;
385 * max_listen - Maximum listen duration in ms
387 unsigned int max_listen;
390 * cb_ctx - Context to use with callback functions
395 * debug_print - Debug print
396 * @ctx: Callback context from cb_ctx
397 * @level: Debug verbosity level (MSG_*)
398 * @msg: Debug message
400 void (*debug_print)(void *ctx, int level, const char *msg);
403 /* Callbacks to request lower layer driver operations */
406 * p2p_scan - Request a P2P scan/search
407 * @ctx: Callback context from cb_ctx
409 * @freq: Specific frequency (MHz) to scan or 0 for no restriction
410 * @num_req_dev_types: Number of requested device types
411 * @req_dev_types: Array containing requested device types
412 * @dev_id: Device ID to search for or %NULL to find all devices
413 * @pw_id: Device Password ID
414 * Returns: 0 on success, -1 on failure
416 * This callback function is used to request a P2P scan or search
417 * operation to be completed. Type type argument specifies which type
418 * of scan is to be done. @P2P_SCAN_SOCIAL indicates that only the
419 * social channels (1, 6, 11) should be scanned. @P2P_SCAN_FULL
420 * indicates that all channels are to be scanned.
421 * @P2P_SCAN_SOCIAL_PLUS_ONE request scan of all the social channels
422 * plus one extra channel specified by freq.
424 * The full scan is used for the initial scan to find group owners from
425 * all. The other types are used during search phase scan of the social
426 * channels (with potential variation if the Listen channel of the
427 * target peer is known or if other channels are scanned in steps).
429 * The scan results are returned after this call by calling
430 * p2p_scan_res_handler() for each scan result that has a P2P IE and
431 * then calling p2p_scan_res_handled() to indicate that all scan
432 * results have been indicated.
434 int (*p2p_scan)(void *ctx, enum p2p_scan_type type, int freq,
435 unsigned int num_req_dev_types,
436 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id);
439 * send_probe_resp - Transmit a Probe Response frame
440 * @ctx: Callback context from cb_ctx
441 * @buf: Probe Response frame (including the header and body)
442 * Returns: 0 on success, -1 on failure
444 * This function is used to reply to Probe Request frames that were
445 * indicated with a call to p2p_probe_req_rx(). The response is to be
446 * sent on the same channel or to be dropped if the driver is not
447 * anymore listening to Probe Request frames.
449 * Alternatively, the responsibility for building the Probe Response
450 * frames in Listen state may be in another system component in which
451 * case this function need to be implemented (i.e., the function
452 * pointer can be %NULL). The WPS and P2P IEs to be added for Probe
453 * Response frames in such a case are available from the
454 * start_listen() callback. It should be noted that the received Probe
455 * Request frames must be indicated by calling p2p_probe_req_rx() even
456 * if this send_probe_resp() is not used.
458 int (*send_probe_resp)(void *ctx, const struct wpabuf *buf);
461 * send_action - Transmit an Action frame
462 * @ctx: Callback context from cb_ctx
463 * @freq: Frequency in MHz for the channel on which to transmit
464 * @dst: Destination MAC address (Address 1)
465 * @src: Source MAC address (Address 2)
466 * @bssid: BSSID (Address 3)
467 * @buf: Frame body (starting from Category field)
468 * @len: Length of buf in octets
469 * @wait_time: How many msec to wait for a response frame
470 * Returns: 0 on success, -1 on failure
472 * The Action frame may not be transmitted immediately and the status
473 * of the transmission must be reported by calling
474 * p2p_send_action_cb() once the frame has either been transmitted or
475 * it has been dropped due to excessive retries or other failure to
478 int (*send_action)(void *ctx, unsigned int freq, const u8 *dst,
479 const u8 *src, const u8 *bssid, const u8 *buf,
480 size_t len, unsigned int wait_time);
483 * send_action_done - Notify that Action frame sequence was completed
484 * @ctx: Callback context from cb_ctx
486 * This function is called when the Action frame sequence that was
487 * started with send_action() has been completed, i.e., when there is
488 * no need to wait for a response from the destination peer anymore.
490 void (*send_action_done)(void *ctx);
493 * start_listen - Start Listen state
494 * @ctx: Callback context from cb_ctx
495 * @freq: Frequency of the listen channel in MHz
496 * @duration: Duration for the Listen state in milliseconds
497 * @probe_resp_ie: IE(s) to be added to Probe Response frames
498 * Returns: 0 on success, -1 on failure
500 * This Listen state may not start immediately since the driver may
501 * have other pending operations to complete first. Once the Listen
502 * state has started, p2p_listen_cb() must be called to notify the P2P
503 * module. Once the Listen state is stopped, p2p_listen_end() must be
504 * called to notify the P2P module that the driver is not in the Listen
507 * If the send_probe_resp() is not used for generating the response,
508 * the IEs from probe_resp_ie need to be added to the end of the Probe
509 * Response frame body. If send_probe_resp() is used, the probe_resp_ie
510 * information can be ignored.
512 int (*start_listen)(void *ctx, unsigned int freq,
513 unsigned int duration,
514 const struct wpabuf *probe_resp_ie);
516 * stop_listen - Stop Listen state
517 * @ctx: Callback context from cb_ctx
519 * This callback can be used to stop a Listen state operation that was
520 * previously requested with start_listen().
522 void (*stop_listen)(void *ctx);
525 * get_noa - Get current Notice of Absence attribute payload
526 * @ctx: Callback context from cb_ctx
527 * @interface_addr: P2P Interface Address of the GO
528 * @buf: Buffer for returning NoA
529 * @buf_len: Buffer length in octets
530 * Returns: Number of octets used in buf, 0 to indicate no NoA is being
531 * advertized, or -1 on failure
533 * This function is used to fetch the current Notice of Absence
534 * attribute value from GO.
536 int (*get_noa)(void *ctx, const u8 *interface_addr, u8 *buf,
539 /* Callbacks to notify events to upper layer management entity */
542 * dev_found - Notification of a found P2P Device
543 * @ctx: Callback context from cb_ctx
544 * @addr: Source address of the message triggering this notification
545 * @info: P2P peer information
546 * @new_device: Inform if the peer is newly found
548 * This callback is used to notify that a new P2P Device has been
549 * found. This may happen, e.g., during Search state based on scan
550 * results or during Listen state based on receive Probe Request and
551 * Group Owner Negotiation Request.
553 void (*dev_found)(void *ctx, const u8 *addr,
554 const struct p2p_peer_info *info,
558 * dev_lost - Notification of a lost P2P Device
559 * @ctx: Callback context from cb_ctx
560 * @dev_addr: P2P Device Address of the lost P2P Device
562 * This callback is used to notify that a P2P Device has been deleted.
564 void (*dev_lost)(void *ctx, const u8 *dev_addr);
567 * find_stopped - Notification of a p2p_find operation stopping
568 * @ctx: Callback context from cb_ctx
570 void (*find_stopped)(void *ctx);
573 * go_neg_req_rx - Notification of a receive GO Negotiation Request
574 * @ctx: Callback context from cb_ctx
575 * @src: Source address of the message triggering this notification
576 * @dev_passwd_id: WPS Device Password ID
578 * This callback is used to notify that a P2P Device is requesting
579 * group owner negotiation with us, but we do not have all the
580 * necessary information to start GO Negotiation. This indicates that
581 * the local user has not authorized the connection yet by providing a
582 * PIN or PBC button press. This information can be provided with a
583 * call to p2p_connect().
585 void (*go_neg_req_rx)(void *ctx, const u8 *src, u16 dev_passwd_id);
588 * go_neg_completed - Notification of GO Negotiation results
589 * @ctx: Callback context from cb_ctx
590 * @res: GO Negotiation results
592 * This callback is used to notify that Group Owner Negotiation has
593 * been completed. Non-zero struct p2p_go_neg_results::status indicates
594 * failed negotiation. In case of success, this function is responsible
595 * for creating a new group interface (or using the existing interface
596 * depending on driver features), setting up the group interface in
597 * proper mode based on struct p2p_go_neg_results::role_go and
598 * initializing WPS provisioning either as a Registrar (if GO) or as an
599 * Enrollee. Successful WPS provisioning must be indicated by calling
600 * p2p_wps_success_cb(). The callee is responsible for timing out group
601 * formation if WPS provisioning cannot be completed successfully
604 void (*go_neg_completed)(void *ctx, struct p2p_go_neg_results *res);
607 * sd_request - Callback on Service Discovery Request
608 * @ctx: Callback context from cb_ctx
609 * @freq: Frequency (in MHz) of the channel
610 * @sa: Source address of the request
611 * @dialog_token: Dialog token
612 * @update_indic: Service Update Indicator from the source of request
613 * @tlvs: P2P Service Request TLV(s)
614 * @tlvs_len: Length of tlvs buffer in octets
616 * This callback is used to indicate reception of a service discovery
617 * request. Response to the query must be indicated by calling
618 * p2p_sd_response() with the context information from the arguments to
619 * this callback function.
621 * This callback handler can be set to %NULL to indicate that service
622 * discovery is not supported.
624 void (*sd_request)(void *ctx, int freq, const u8 *sa, u8 dialog_token,
625 u16 update_indic, const u8 *tlvs, size_t tlvs_len);
628 * sd_response - Callback on Service Discovery Response
629 * @ctx: Callback context from cb_ctx
630 * @sa: Source address of the request
631 * @update_indic: Service Update Indicator from the source of response
632 * @tlvs: P2P Service Response TLV(s)
633 * @tlvs_len: Length of tlvs buffer in octets
635 * This callback is used to indicate reception of a service discovery
636 * response. This callback handler can be set to %NULL if no service
637 * discovery requests are used. The information provided with this call
638 * is replies to the queries scheduled with p2p_sd_request().
640 void (*sd_response)(void *ctx, const u8 *sa, u16 update_indic,
641 const u8 *tlvs, size_t tlvs_len);
644 * prov_disc_req - Callback on Provisiong Discovery Request
645 * @ctx: Callback context from cb_ctx
646 * @peer: Source address of the request
647 * @config_methods: Requested WPS Config Method
648 * @dev_addr: P2P Device Address of the found P2P Device
649 * @pri_dev_type: Primary Device Type
650 * @dev_name: Device Name
651 * @supp_config_methods: Supported configuration Methods
652 * @dev_capab: Device Capabilities
653 * @group_capab: Group Capabilities
654 * @group_id: P2P Group ID (or %NULL if not included)
655 * @group_id_len: Length of P2P Group ID
657 * This callback is used to indicate reception of a Provision Discovery
658 * Request frame that the P2P module accepted.
660 void (*prov_disc_req)(void *ctx, const u8 *peer, u16 config_methods,
661 const u8 *dev_addr, const u8 *pri_dev_type,
662 const char *dev_name, u16 supp_config_methods,
663 u8 dev_capab, u8 group_capab,
664 const u8 *group_id, size_t group_id_len);
667 * prov_disc_resp - Callback on Provisiong Discovery Response
668 * @ctx: Callback context from cb_ctx
669 * @peer: Source address of the response
670 * @config_methods: Value from p2p_prov_disc_req() or 0 on failure
672 * This callback is used to indicate reception of a Provision Discovery
673 * Response frame for a pending request scheduled with
674 * p2p_prov_disc_req(). This callback handler can be set to %NULL if
675 * provision discovery is not used.
677 void (*prov_disc_resp)(void *ctx, const u8 *peer, u16 config_methods);
680 * prov_disc_fail - Callback on Provision Discovery failure
681 * @ctx: Callback context from cb_ctx
682 * @peer: Source address of the response
683 * @status: Cause of failure, will not be %P2P_PROV_DISC_SUCCESS
685 * This callback is used to indicate either a failure or no response
686 * to an earlier provision discovery request.
688 * This callback handler can be set to %NULL if provision discovery
689 * is not used or failures do not need to be indicated.
691 void (*prov_disc_fail)(void *ctx, const u8 *peer,
692 enum p2p_prov_disc_status status);
695 * invitation_process - Optional callback for processing Invitations
696 * @ctx: Callback context from cb_ctx
697 * @sa: Source address of the Invitation Request
698 * @bssid: P2P Group BSSID from the request or %NULL if not included
699 * @go_dev_addr: GO Device Address from P2P Group ID
700 * @ssid: SSID from P2P Group ID
701 * @ssid_len: Length of ssid buffer in octets
702 * @go: Variable for returning whether the local end is GO in the group
703 * @group_bssid: Buffer for returning P2P Group BSSID (if local end GO)
704 * @force_freq: Variable for returning forced frequency for the group
705 * @persistent_group: Whether this is an invitation to reinvoke a
706 * persistent group (instead of invitation to join an active
708 * @channels: Available operating channels for the group
709 * Returns: Status code (P2P_SC_*)
711 * This optional callback can be used to implement persistent reconnect
712 * by allowing automatic restarting of persistent groups without user
713 * interaction. If this callback is not implemented (i.e., is %NULL),
714 * the received Invitation Request frames are replied with
715 * %P2P_SC_REQ_RECEIVED status and indicated to upper layer with the
716 * invitation_result() callback.
718 * If the requested parameters are acceptable and the group is known,
719 * %P2P_SC_SUCCESS may be returned. If the requested group is unknown,
720 * %P2P_SC_FAIL_UNKNOWN_GROUP should be returned. %P2P_SC_REQ_RECEIVED
721 * can be returned if there is not enough data to provide immediate
722 * response, i.e., if some sort of user interaction is needed. The
723 * invitation_received() callback will be called in that case
724 * immediately after this call.
726 u8 (*invitation_process)(void *ctx, const u8 *sa, const u8 *bssid,
727 const u8 *go_dev_addr, const u8 *ssid,
728 size_t ssid_len, int *go, u8 *group_bssid,
729 int *force_freq, int persistent_group,
730 const struct p2p_channels *channels);
733 * invitation_received - Callback on Invitation Request RX
734 * @ctx: Callback context from cb_ctx
735 * @sa: Source address of the Invitation Request
736 * @bssid: P2P Group BSSID or %NULL if not received
737 * @ssid: SSID of the group
738 * @ssid_len: Length of ssid in octets
739 * @go_dev_addr: GO Device Address
740 * @status: Response Status
741 * @op_freq: Operational frequency for the group
743 * This callback is used to indicate sending of an Invitation Response
744 * for a received Invitation Request. If status == 0 (success), the
745 * upper layer code is responsible for starting the group. status == 1
746 * indicates need to get user authorization for the group. Other status
747 * values indicate that the invitation request was rejected.
749 void (*invitation_received)(void *ctx, const u8 *sa, const u8 *bssid,
750 const u8 *ssid, size_t ssid_len,
751 const u8 *go_dev_addr, u8 status,
755 * invitation_result - Callback on Invitation result
756 * @ctx: Callback context from cb_ctx
757 * @status: Negotiation result (Status Code)
758 * @bssid: P2P Group BSSID or %NULL if not received
759 * @channels: Available operating channels for the group
760 * @addr: Peer address
761 * @freq: Frequency (in MHz) indicated during invitation or 0
763 * This callback is used to indicate result of an Invitation procedure
764 * started with a call to p2p_invite(). The indicated status code is
765 * the value received from the peer in Invitation Response with 0
766 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a
767 * local failure in transmitting the Invitation Request.
769 void (*invitation_result)(void *ctx, int status, const u8 *bssid,
770 const struct p2p_channels *channels,
771 const u8 *addr, int freq);
774 * go_connected - Check whether we are connected to a GO
775 * @ctx: Callback context from cb_ctx
776 * @dev_addr: P2P Device Address of a GO
777 * Returns: 1 if we are connected as a P2P client to the specified GO
780 int (*go_connected)(void *ctx, const u8 *dev_addr);
783 * presence_resp - Callback on Presence Response
784 * @ctx: Callback context from cb_ctx
785 * @src: Source address (GO's P2P Interface Address)
786 * @status: Result of the request (P2P_SC_*)
787 * @noa: Returned NoA value
788 * @noa_len: Length of the NoA buffer in octets
790 void (*presence_resp)(void *ctx, const u8 *src, u8 status,
791 const u8 *noa, size_t noa_len);
794 * is_concurrent_session_active - Check whether concurrent session is
795 * active on other virtual interfaces
796 * @ctx: Callback context from cb_ctx
797 * Returns: 1 if concurrent session is active on other virtual interface
800 int (*is_concurrent_session_active)(void *ctx);
804 /* P2P module initialization/deinitialization */
807 * p2p_init - Initialize P2P module
808 * @cfg: P2P module configuration
809 * Returns: Pointer to private data or %NULL on failure
811 * This function is used to initialize global P2P module context (one per
812 * device). The P2P module will keep a copy of the configuration data, so the
813 * caller does not need to maintain this structure. However, the callback
814 * functions and the context parameters to them must be kept available until
815 * the P2P module is deinitialized with p2p_deinit().
817 struct p2p_data * p2p_init(const struct p2p_config *cfg);
820 * p2p_deinit - Deinitialize P2P module
821 * @p2p: P2P module context from p2p_init()
823 void p2p_deinit(struct p2p_data *p2p);
826 * p2p_flush - Flush P2P module state
827 * @p2p: P2P module context from p2p_init()
829 * This command removes the P2P module state like peer device entries.
831 void p2p_flush(struct p2p_data *p2p);
834 * p2p_unauthorize - Unauthorize the specified peer device
835 * @p2p: P2P module context from p2p_init()
836 * @addr: P2P peer entry to be unauthorized
837 * Returns: 0 on success, -1 on failure
839 * This command removes any connection authorization from the specified P2P
840 * peer device address. This can be used, e.g., to cancel effect of a previous
841 * p2p_authorize() or p2p_connect() call that has not yet resulted in completed
844 int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr);
847 * p2p_set_dev_name - Set device name
848 * @p2p: P2P module context from p2p_init()
849 * Returns: 0 on success, -1 on failure
851 * This function can be used to update the P2P module configuration with
852 * information that was not available at the time of the p2p_init() call.
854 int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name);
856 int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer);
857 int p2p_set_model_name(struct p2p_data *p2p, const char *model_name);
858 int p2p_set_model_number(struct p2p_data *p2p, const char *model_number);
859 int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number);
861 void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods);
862 void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid);
865 * p2p_set_pri_dev_type - Set primary device type
866 * @p2p: P2P module context from p2p_init()
867 * Returns: 0 on success, -1 on failure
869 * This function can be used to update the P2P module configuration with
870 * information that was not available at the time of the p2p_init() call.
872 int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type);
875 * p2p_set_sec_dev_types - Set secondary device types
876 * @p2p: P2P module context from p2p_init()
877 * Returns: 0 on success, -1 on failure
879 * This function can be used to update the P2P module configuration with
880 * information that was not available at the time of the p2p_init() call.
882 int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
883 size_t num_dev_types);
885 int p2p_set_country(struct p2p_data *p2p, const char *country);
888 /* Commands from upper layer management entity */
890 enum p2p_discovery_type {
891 P2P_FIND_START_WITH_FULL,
892 P2P_FIND_ONLY_SOCIAL,
897 * p2p_find - Start P2P Find (Device Discovery)
898 * @p2p: P2P module context from p2p_init()
899 * @timeout: Timeout for find operation in seconds or 0 for no timeout
900 * @type: Device Discovery type
901 * @num_req_dev_types: Number of requested device types
902 * @req_dev_types: Requested device types array, must be an array
903 * containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no
904 * requested device types.
905 * @dev_id: Device ID to search for or %NULL to find all devices
906 * @search_delay: Extra delay in milliseconds between search iterations
907 * Returns: 0 on success, -1 on failure
909 int p2p_find(struct p2p_data *p2p, unsigned int timeout,
910 enum p2p_discovery_type type,
911 unsigned int num_req_dev_types, const u8 *req_dev_types,
912 const u8 *dev_id, unsigned int search_delay);
915 * p2p_stop_find - Stop P2P Find (Device Discovery)
916 * @p2p: P2P module context from p2p_init()
918 void p2p_stop_find(struct p2p_data *p2p);
921 * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq
922 * @p2p: P2P module context from p2p_init()
923 * @freq: Frequency in MHz for next operation
925 * This is like p2p_stop_find(), but Listen state is not stopped if we are
926 * already on the same frequency.
928 void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq);
931 * p2p_listen - Start P2P Listen state for specified duration
932 * @p2p: P2P module context from p2p_init()
933 * @timeout: Listen state duration in milliseconds
934 * Returns: 0 on success, -1 on failure
936 * This function can be used to request the P2P module to keep the device
937 * discoverable on the listen channel for an extended set of time. At least in
938 * its current form, this is mainly used for testing purposes and may not be of
939 * much use for normal P2P operations.
941 int p2p_listen(struct p2p_data *p2p, unsigned int timeout);
944 * p2p_stop_listen - Stop P2P Listen
945 * @p2p: P2P module context from p2p_init()
947 void p2p_stop_listen(struct p2p_data *p2p);
950 * p2p_connect - Start P2P group formation (GO negotiation)
951 * @p2p: P2P module context from p2p_init()
952 * @peer_addr: MAC address of the peer P2P client
953 * @wps_method: WPS method to be used in provisioning
954 * @go_intent: Local GO intent value (1..15)
955 * @own_interface_addr: Intended interface address to use with the group
956 * @force_freq: The only allowed channel frequency in MHz or 0
957 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
958 * persistent group without persistent reconnect, 2 = persistent group with
959 * persistent reconnect)
960 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
962 * @force_ssid_len: Length of $force_ssid buffer
963 * @pd_before_go_neg: Whether to send Provision Discovery prior to GO
964 * Negotiation as an interoperability workaround when initiating group
966 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if
968 * Returns: 0 on success, -1 on failure
970 int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
971 enum p2p_wps_method wps_method,
972 int go_intent, const u8 *own_interface_addr,
973 unsigned int force_freq, int persistent_group,
974 const u8 *force_ssid, size_t force_ssid_len,
975 int pd_before_go_neg, unsigned int pref_freq);
978 * p2p_authorize - Authorize P2P group formation (GO negotiation)
979 * @p2p: P2P module context from p2p_init()
980 * @peer_addr: MAC address of the peer P2P client
981 * @wps_method: WPS method to be used in provisioning
982 * @go_intent: Local GO intent value (1..15)
983 * @own_interface_addr: Intended interface address to use with the group
984 * @force_freq: The only allowed channel frequency in MHz or 0
985 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
986 * persistent group without persistent reconnect, 2 = persistent group with
987 * persistent reconnect)
988 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
990 * @force_ssid_len: Length of $force_ssid buffer
991 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if
993 * Returns: 0 on success, -1 on failure
995 * This is like p2p_connect(), but the actual group negotiation is not
996 * initiated automatically, i.e., the other end is expected to do that.
998 int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
999 enum p2p_wps_method wps_method,
1000 int go_intent, const u8 *own_interface_addr,
1001 unsigned int force_freq, int persistent_group,
1002 const u8 *force_ssid, size_t force_ssid_len,
1003 unsigned int pref_freq);
1006 * p2p_reject - Reject peer device (explicitly block connection attempts)
1007 * @p2p: P2P module context from p2p_init()
1008 * @peer_addr: MAC address of the peer P2P client
1009 * Returns: 0 on success, -1 on failure
1011 int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr);
1014 * p2p_prov_disc_req - Send Provision Discovery Request
1015 * @p2p: P2P module context from p2p_init()
1016 * @peer_addr: MAC address of the peer P2P client
1017 * @config_methods: WPS Config Methods value (only one bit set)
1018 * @join: Whether this is used by a client joining an active group
1019 * @force_freq: Forced TX frequency for the frame (mainly for the join case)
1020 * @user_initiated_pd: Flag to indicate if initiated by user or not
1021 * Returns: 0 on success, -1 on failure
1023 * This function can be used to request a discovered P2P peer to display a PIN
1024 * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us
1025 * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame
1026 * is transmitted once immediately and if no response is received, the frame
1027 * will be sent again whenever the target device is discovered during device
1028 * dsicovery (start with a p2p_find() call). Response from the peer is
1029 * indicated with the p2p_config::prov_disc_resp() callback.
1031 int p2p_prov_disc_req(struct p2p_data *p2p, const u8 *peer_addr,
1032 u16 config_methods, int join, int force_freq,
1033 int user_initiated_pd);
1036 * p2p_sd_request - Schedule a service discovery query
1037 * @p2p: P2P module context from p2p_init()
1038 * @dst: Destination peer or %NULL to apply for all peers
1039 * @tlvs: P2P Service Query TLV(s)
1040 * Returns: Reference to the query or %NULL on failure
1042 * Response to the query is indicated with the p2p_config::sd_response()
1045 void * p2p_sd_request(struct p2p_data *p2p, const u8 *dst,
1046 const struct wpabuf *tlvs);
1048 #ifdef CONFIG_WIFI_DISPLAY
1049 void * p2p_sd_request_wfd(struct p2p_data *p2p, const u8 *dst,
1050 const struct wpabuf *tlvs);
1051 #endif /* CONFIG_WIFI_DISPLAY */
1054 * p2p_sd_cancel_request - Cancel a pending service discovery query
1055 * @p2p: P2P module context from p2p_init()
1056 * @req: Query reference from p2p_sd_request()
1057 * Returns: 0 if request for cancelled; -1 if not found
1059 int p2p_sd_cancel_request(struct p2p_data *p2p, void *req);
1062 * p2p_sd_response - Send response to a service discovery query
1063 * @p2p: P2P module context from p2p_init()
1064 * @freq: Frequency from p2p_config::sd_request() callback
1065 * @dst: Destination address from p2p_config::sd_request() callback
1066 * @dialog_token: Dialog token from p2p_config::sd_request() callback
1067 * @resp_tlvs: P2P Service Response TLV(s)
1069 * This function is called as a response to the request indicated with
1070 * p2p_config::sd_request() callback.
1072 void p2p_sd_response(struct p2p_data *p2p, int freq, const u8 *dst,
1073 u8 dialog_token, const struct wpabuf *resp_tlvs);
1076 * p2p_sd_service_update - Indicate a change in local services
1077 * @p2p: P2P module context from p2p_init()
1079 * This function needs to be called whenever there is a change in availability
1080 * of the local services. This will increment the Service Update Indicator
1081 * value which will be used in SD Request and Response frames.
1083 void p2p_sd_service_update(struct p2p_data *p2p);
1086 enum p2p_invite_role {
1088 P2P_INVITE_ROLE_ACTIVE_GO,
1089 P2P_INVITE_ROLE_CLIENT
1093 * p2p_invite - Invite a P2P Device into a group
1094 * @p2p: P2P module context from p2p_init()
1095 * @peer: Device Address of the peer P2P Device
1096 * @role: Local role in the group
1097 * @bssid: Group BSSID or %NULL if not known
1099 * @ssid_len: Length of ssid in octets
1100 * @force_freq: The only allowed channel frequency in MHz or 0
1101 * @go_dev_addr: Forced GO Device Address or %NULL if none
1102 * @persistent_group: Whether this is to reinvoke a persistent group
1103 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if
1105 * Returns: 0 on success, -1 on failure
1107 int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role,
1108 const u8 *bssid, const u8 *ssid, size_t ssid_len,
1109 unsigned int force_freq, const u8 *go_dev_addr,
1110 int persistent_group, unsigned int pref_freq);
1113 * p2p_presence_req - Request GO presence
1114 * @p2p: P2P module context from p2p_init()
1115 * @go_interface_addr: GO P2P Interface Address
1116 * @own_interface_addr: Own P2P Interface Address for this group
1117 * @freq: Group operating frequence (in MHz)
1118 * @duration1: Preferred presence duration in microseconds
1119 * @interval1: Preferred presence interval in microseconds
1120 * @duration2: Acceptable presence duration in microseconds
1121 * @interval2: Acceptable presence interval in microseconds
1122 * Returns: 0 on success, -1 on failure
1124 * If both duration and interval values are zero, the parameter pair is not
1125 * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0).
1127 int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
1128 const u8 *own_interface_addr, unsigned int freq,
1129 u32 duration1, u32 interval1, u32 duration2,
1133 * p2p_ext_listen - Set Extended Listen Timing
1134 * @p2p: P2P module context from p2p_init()
1135 * @freq: Group operating frequence (in MHz)
1136 * @period: Availability period in milliseconds (1-65535; 0 to disable)
1137 * @interval: Availability interval in milliseconds (1-65535; 0 to disable)
1138 * Returns: 0 on success, -1 on failure
1140 * This function can be used to enable or disable (period = interval = 0)
1141 * Extended Listen Timing. When enabled, the P2P Device will become
1142 * discoverable (go into Listen State) every @interval milliseconds for at
1143 * least @period milliseconds.
1145 int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
1146 unsigned int interval);
1148 /* Event notifications from upper layer management operations */
1151 * p2p_wps_success_cb - Report successfully completed WPS provisioning
1152 * @p2p: P2P module context from p2p_init()
1153 * @mac_addr: Peer address
1155 * This function is used to report successfully completed WPS provisioning
1156 * during group formation in both GO/Registrar and client/Enrollee roles.
1158 void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr);
1161 * p2p_group_formation_failed - Report failed WPS provisioning
1162 * @p2p: P2P module context from p2p_init()
1164 * This function is used to report failed group formation. This can happen
1165 * either due to failed WPS provisioning or due to 15 second timeout during
1166 * the provisioning phase.
1168 void p2p_group_formation_failed(struct p2p_data *p2p);
1171 * p2p_get_provisioning_info - Get any stored provisioning info
1172 * @p2p: P2P module context from p2p_init()
1173 * @addr: Peer P2P Device Address
1174 * Returns: WPS provisioning information (WPS config method) or 0 if no
1175 * information is available
1177 * This function is used to retrieve stored WPS provisioning info for the given
1180 u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr);
1183 * p2p_clear_provisioning_info - Clear any stored provisioning info
1184 * @p2p: P2P module context from p2p_init()
1185 * @iface_addr: Peer P2P Device Address
1187 * This function is used to clear stored WPS provisioning info for the given
1190 void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr);
1193 /* Event notifications from lower layer driver operations */
1196 * enum p2p_probe_req_status
1198 * @P2P_PREQ_MALFORMED: frame was not well-formed
1199 * @P2P_PREQ_NOT_LISTEN: device isn't in listen state, frame ignored
1200 * @P2P_PREQ_NOT_P2P: frame was not a P2P probe request
1201 * @P2P_PREQ_P2P_NOT_PROCESSED: frame was P2P but wasn't processed
1202 * @P2P_PREQ_P2P_PROCESSED: frame has been processed by P2P
1204 enum p2p_probe_req_status {
1206 P2P_PREQ_NOT_LISTEN,
1208 P2P_PREQ_NOT_PROCESSED,
1213 * p2p_probe_req_rx - Report reception of a Probe Request frame
1214 * @p2p: P2P module context from p2p_init()
1215 * @addr: Source MAC address
1216 * @dst: Destination MAC address if available or %NULL
1217 * @bssid: BSSID if available or %NULL
1218 * @ie: Information elements from the Probe Request frame body
1219 * @ie_len: Length of ie buffer in octets
1220 * Returns: value indicating the type and status of the probe request
1222 enum p2p_probe_req_status
1223 p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
1224 const u8 *bssid, const u8 *ie, size_t ie_len);
1227 * p2p_rx_action - Report received Action frame
1228 * @p2p: P2P module context from p2p_init()
1229 * @da: Destination address of the received Action frame
1230 * @sa: Source address of the received Action frame
1231 * @bssid: Address 3 of the received Action frame
1232 * @category: Category of the received Action frame
1233 * @data: Action frame body after the Category field
1234 * @len: Length of the data buffer in octets
1235 * @freq: Frequency (in MHz) on which the frame was received
1237 void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1238 const u8 *bssid, u8 category,
1239 const u8 *data, size_t len, int freq);
1242 * p2p_scan_res_handler - Indicate a P2P scan results
1243 * @p2p: P2P module context from p2p_init()
1244 * @bssid: BSSID of the scan result
1245 * @freq: Frequency of the channel on which the device was found in MHz
1246 * @rx_time: Time when the result was received
1247 * @level: Signal level (signal strength of the received Beacon/Probe Response
1249 * @ies: Pointer to IEs from the scan result
1250 * @ies_len: Length of the ies buffer
1251 * Returns: 0 to continue or 1 to stop scan result indication
1253 * This function is called to indicate a scan result entry with P2P IE from a
1254 * scan requested with struct p2p_config::p2p_scan(). This can be called during
1255 * the actual scan process (i.e., whenever a new device is found) or as a
1256 * sequence of calls after the full scan has been completed. The former option
1257 * can result in optimized operations, but may not be supported by all
1258 * driver/firmware designs. The ies buffer need to include at least the P2P IE,
1259 * but it is recommended to include all IEs received from the device. The
1260 * caller does not need to check that the IEs contain a P2P IE before calling
1261 * this function since frames will be filtered internally if needed.
1263 * This function will return 1 if it wants to stop scan result iteration (and
1264 * scan in general if it is still in progress). This is used to allow faster
1265 * start of a pending operation, e.g., to start a pending GO negotiation.
1267 int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
1268 struct os_reltime *rx_time, int level, const u8 *ies,
1272 * p2p_scan_res_handled - Indicate end of scan results
1273 * @p2p: P2P module context from p2p_init()
1275 * This function is called to indicate that all P2P scan results from a scan
1276 * have been reported with zero or more calls to p2p_scan_res_handler(). This
1277 * function must be called as a response to successful
1278 * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler()
1279 * calls stopped iteration.
1281 void p2p_scan_res_handled(struct p2p_data *p2p);
1283 enum p2p_send_action_result {
1284 P2P_SEND_ACTION_SUCCESS /* Frame was send and acknowledged */,
1285 P2P_SEND_ACTION_NO_ACK /* Frame was sent, but not acknowledged */,
1286 P2P_SEND_ACTION_FAILED /* Frame was not sent due to a failure */
1290 * p2p_send_action_cb - Notify TX status of an Action frame
1291 * @p2p: P2P module context from p2p_init()
1292 * @freq: Channel frequency in MHz
1293 * @dst: Destination MAC address (Address 1)
1294 * @src: Source MAC address (Address 2)
1295 * @bssid: BSSID (Address 3)
1296 * @result: Result of the transmission attempt
1298 * This function is used to indicate the result of an Action frame transmission
1299 * that was requested with struct p2p_config::send_action() callback.
1301 void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
1302 const u8 *src, const u8 *bssid,
1303 enum p2p_send_action_result result);
1306 * p2p_listen_cb - Indicate the start of a requested Listen state
1307 * @p2p: P2P module context from p2p_init()
1308 * @freq: Listen channel frequency in MHz
1309 * @duration: Duration for the Listen state in milliseconds
1311 * This function is used to indicate that a Listen state requested with
1312 * struct p2p_config::start_listen() callback has started.
1314 void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
1315 unsigned int duration);
1318 * p2p_listen_end - Indicate the end of a requested Listen state
1319 * @p2p: P2P module context from p2p_init()
1320 * @freq: Listen channel frequency in MHz
1321 * Returns: 0 if no operations were started, 1 if an operation was started
1323 * This function is used to indicate that a Listen state requested with
1324 * struct p2p_config::start_listen() callback has ended.
1326 int p2p_listen_end(struct p2p_data *p2p, unsigned int freq);
1328 void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
1329 const u8 *ie, size_t ie_len);
1331 void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
1332 const u8 *ie, size_t ie_len);
1335 /* Per-group P2P state for GO */
1340 * struct p2p_group_config - P2P group configuration
1342 * This configuration is provided to the P2P module during initialization of
1343 * the per-group information with p2p_group_init().
1345 struct p2p_group_config {
1347 * persistent_group - Whether the group is persistent
1348 * 0 = not a persistent group
1349 * 1 = persistent group without persistent reconnect
1350 * 2 = persistent group with persistent reconnect
1352 int persistent_group;
1355 * interface_addr - P2P Interface Address of the group
1357 u8 interface_addr[ETH_ALEN];
1360 * max_clients - Maximum number of clients in the group
1362 unsigned int max_clients;
1370 * ssid_len - Length of SSID
1375 * freq - Operating channel of the group
1380 * cb_ctx - Context to use with callback functions
1385 * ie_update - Notification of IE update
1386 * @ctx: Callback context from cb_ctx
1387 * @beacon_ies: P2P IE for Beacon frames or %NULL if no change
1388 * @proberesp_ies: P2P Ie for Probe Response frames
1390 * P2P module uses this callback function to notify whenever the P2P IE
1391 * in Beacon or Probe Response frames should be updated based on group
1394 * The callee is responsible for freeing the returned buffer(s) with
1397 void (*ie_update)(void *ctx, struct wpabuf *beacon_ies,
1398 struct wpabuf *proberesp_ies);
1401 * idle_update - Notification of changes in group idle state
1402 * @ctx: Callback context from cb_ctx
1403 * @idle: Whether the group is idle (no associated stations)
1405 void (*idle_update)(void *ctx, int idle);
1409 * p2p_group_init - Initialize P2P group
1410 * @p2p: P2P module context from p2p_init()
1411 * @config: P2P group configuration (will be freed by p2p_group_deinit())
1412 * Returns: Pointer to private data or %NULL on failure
1414 * This function is used to initialize per-group P2P module context. Currently,
1415 * this is only used to manage GO functionality and P2P clients do not need to
1416 * create an instance of this per-group information.
1418 struct p2p_group * p2p_group_init(struct p2p_data *p2p,
1419 struct p2p_group_config *config);
1422 * p2p_group_deinit - Deinitialize P2P group
1423 * @group: P2P group context from p2p_group_init()
1425 void p2p_group_deinit(struct p2p_group *group);
1428 * p2p_group_notif_assoc - Notification of P2P client association with GO
1429 * @group: P2P group context from p2p_group_init()
1430 * @addr: Interface address of the P2P client
1431 * @ie: IEs from the (Re)association Request frame
1432 * @len: Length of the ie buffer in octets
1433 * Returns: 0 on success, -1 on failure
1435 int p2p_group_notif_assoc(struct p2p_group *group, const u8 *addr,
1436 const u8 *ie, size_t len);
1439 * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response
1440 * @group: P2P group context from p2p_group_init()
1441 * @status: Status value (P2P_SC_SUCCESS if association succeeded)
1442 * Returns: P2P IE for (Re)association Response or %NULL on failure
1444 * The caller is responsible for freeing the returned buffer with
1447 struct wpabuf * p2p_group_assoc_resp_ie(struct p2p_group *group, u8 status);
1450 * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO
1451 * @group: P2P group context from p2p_group_init()
1452 * @addr: Interface address of the P2P client
1454 void p2p_group_notif_disassoc(struct p2p_group *group, const u8 *addr);
1457 * p2p_group_notif_formation_done - Notification of completed group formation
1458 * @group: P2P group context from p2p_group_init()
1460 void p2p_group_notif_formation_done(struct p2p_group *group);
1463 * p2p_group_notif_noa - Notification of NoA change
1464 * @group: P2P group context from p2p_group_init()
1465 * @noa: Notice of Absence attribute payload, %NULL if none
1466 * @noa_len: Length of noa buffer in octets
1467 * Returns: 0 on success, -1 on failure
1469 * Notify the P2P group management about a new NoA contents. This will be
1470 * inserted into the P2P IEs in Beacon and Probe Response frames with rest of
1471 * the group information.
1473 int p2p_group_notif_noa(struct p2p_group *group, const u8 *noa,
1477 * p2p_group_match_dev_type - Match device types in group with requested type
1478 * @group: P2P group context from p2p_group_init()
1479 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1480 * Returns: 1 on match, 0 on mismatch
1482 * This function can be used to match the Requested Device Type attribute in
1483 * WPS IE with the device types of a group member for deciding whether a GO
1484 * should reply to a Probe Request frame. Match will be reported if the WPS IE
1485 * is not requested any specific device type.
1487 int p2p_group_match_dev_type(struct p2p_group *group, struct wpabuf *wps);
1490 * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id
1492 int p2p_group_match_dev_id(struct p2p_group *group, struct wpabuf *p2p);
1495 * p2p_group_go_discover - Send GO Discoverability Request to a group client
1496 * @group: P2P group context from p2p_group_init()
1497 * Returns: 0 on success (frame scheduled); -1 if client was not found
1499 int p2p_group_go_discover(struct p2p_group *group, const u8 *dev_id,
1500 const u8 *searching_dev, int rx_freq);
1503 /* Generic helper functions */
1506 * p2p_ie_text - Build text format description of P2P IE
1508 * @buf: Buffer for returning text
1509 * @end: Pointer to the end of the buf area
1510 * Returns: Number of octets written to the buffer or -1 on failure
1512 * This function can be used to parse P2P IE contents into text format
1513 * field=value lines.
1515 int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end);
1518 * p2p_scan_result_text - Build text format description of P2P IE
1519 * @ies: Information elements from scan results
1520 * @ies_len: ies buffer length in octets
1521 * @buf: Buffer for returning text
1522 * @end: Pointer to the end of the buf area
1523 * Returns: Number of octets written to the buffer or -1 on failure
1525 * This function can be used to parse P2P IE contents into text format
1526 * field=value lines.
1528 int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end);
1531 * p2p_parse_dev_addr_in_p2p_ie - Parse P2P Device Address from a concatenated
1534 * @dev_addr: Buffer for returning P2P Device Address
1535 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1537 int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr);
1540 * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s)
1541 * @ies: Information elements from scan results
1542 * @ies_len: ies buffer length in octets
1543 * @dev_addr: Buffer for returning P2P Device Address
1544 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1546 int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr);
1549 * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame
1550 * @p2p: P2P module context from p2p_init()
1552 * @buf: Buffer for writing the P2P IE
1553 * @len: Maximum buf length in octets
1554 * @p2p_group: Whether this is for association with a P2P GO
1555 * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none
1556 * Returns: Number of octets written into buf or -1 on failure
1558 int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
1559 size_t len, int p2p_group, struct wpabuf *p2p_ie);
1562 * p2p_scan_ie - Build P2P IE for Probe Request
1563 * @p2p: P2P module context from p2p_init()
1564 * @ies: Buffer for writing P2P IE
1565 * @dev_id: Device ID to search for or %NULL for any
1567 void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id);
1570 * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie
1571 * @p2p: P2P module context from p2p_init()
1572 * Returns: Number of octets that p2p_scan_ie() may add to the buffer
1574 size_t p2p_scan_ie_buf_len(struct p2p_data *p2p);
1577 * p2p_go_params - Generate random P2P group parameters
1578 * @p2p: P2P module context from p2p_init()
1579 * @params: Buffer for parameters
1580 * Returns: 0 on success, -1 on failure
1582 int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params);
1585 * p2p_get_group_capab - Get Group Capability from P2P IE data
1586 * @p2p_ie: P2P IE(s) contents
1587 * Returns: Group Capability
1589 u8 p2p_get_group_capab(const struct wpabuf *p2p_ie);
1592 * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection
1593 * @p2p_ie: P2P IE(s) contents
1594 * Returns: 0 if cross connection is allow, 1 if not
1596 int p2p_get_cross_connect_disallowed(const struct wpabuf *p2p_ie);
1599 * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data
1600 * @p2p_ie: P2P IE(s) contents
1601 * Returns: Pointer to P2P Device Address or %NULL if not included
1603 const u8 * p2p_get_go_dev_addr(const struct wpabuf *p2p_ie);
1606 * p2p_get_peer_info - Get P2P peer information
1607 * @p2p: P2P module context from p2p_init()
1608 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1609 * @next: Whether to select the peer entry following the one indicated by addr
1610 * Returns: Pointer to peer info or %NULL if not found
1612 const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
1613 const u8 *addr, int next);
1616 * p2p_get_peer_info_txt - Get internal P2P peer information in text format
1617 * @info: Pointer to P2P peer info from p2p_get_peer_info()
1618 * @buf: Buffer for returning text
1619 * @buflen: Maximum buffer length
1620 * Returns: Number of octets written to the buffer or -1 on failure
1622 * Note: This information is internal to the P2P module and subject to change.
1623 * As such, this should not really be used by external programs for purposes
1624 * other than debugging.
1626 int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
1627 char *buf, size_t buflen);
1630 * p2p_peer_known - Check whether P2P peer is known
1631 * @p2p: P2P module context from p2p_init()
1632 * @addr: P2P Device Address of the peer
1633 * Returns: 1 if the specified device is in the P2P peer table or 0 if not
1635 int p2p_peer_known(struct p2p_data *p2p, const u8 *addr);
1638 * p2p_set_client_discoverability - Set client discoverability capability
1639 * @p2p: P2P module context from p2p_init()
1640 * @enabled: Whether client discoverability will be enabled
1642 * This function can be used to disable (and re-enable) client discoverability.
1643 * This capability is enabled by default and should not be disabled in normal
1644 * use cases, i.e., this is mainly for testing purposes.
1646 void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled);
1649 * p2p_set_managed_oper - Set managed P2P Device operations capability
1650 * @p2p: P2P module context from p2p_init()
1651 * @enabled: Whether managed P2P Device operations will be enabled
1653 void p2p_set_managed_oper(struct p2p_data *p2p, int enabled);
1655 int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel);
1657 int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len);
1659 int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
1661 int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
1664 void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr);
1667 * p2p_set_cross_connect - Set cross connection capability
1668 * @p2p: P2P module context from p2p_init()
1669 * @enabled: Whether cross connection will be enabled
1671 void p2p_set_cross_connect(struct p2p_data *p2p, int enabled);
1673 int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr);
1676 * p2p_set_intra_bss_dist - Set intra BSS distribution
1677 * @p2p: P2P module context from p2p_init()
1678 * @enabled: Whether intra BSS distribution will be enabled
1680 void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled);
1682 int p2p_channels_includes_freq(const struct p2p_channels *channels,
1686 * p2p_supported_freq - Check whether channel is supported for P2P
1687 * @p2p: P2P module context from p2p_init()
1688 * @freq: Channel frequency in MHz
1689 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
1691 int p2p_supported_freq(struct p2p_data *p2p, unsigned int freq);
1694 * p2p_supported_freq_go - Check whether channel is supported for P2P GO operation
1695 * @p2p: P2P module context from p2p_init()
1696 * @freq: Channel frequency in MHz
1697 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
1699 int p2p_supported_freq_go(struct p2p_data *p2p, unsigned int freq);
1702 * p2p_supported_freq_cli - Check whether channel is supported for P2P client operation
1703 * @p2p: P2P module context from p2p_init()
1704 * @freq: Channel frequency in MHz
1705 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
1707 int p2p_supported_freq_cli(struct p2p_data *p2p, unsigned int freq);
1710 * p2p_get_pref_freq - Get channel from preferred channel list
1711 * @p2p: P2P module context from p2p_init()
1712 * @channels: List of channels
1713 * Returns: Preferred channel
1715 unsigned int p2p_get_pref_freq(struct p2p_data *p2p,
1716 const struct p2p_channels *channels);
1718 void p2p_update_channel_list(struct p2p_data *p2p,
1719 const struct p2p_channels *chan,
1720 const struct p2p_channels *cli_chan);
1723 * p2p_set_best_channels - Update best channel information
1724 * @p2p: P2P module context from p2p_init()
1725 * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band
1726 * @freq_5: Frequency (MHz) of best channel in 5 GHz band
1727 * @freq_overall: Frequency (MHz) of best channel overall
1729 void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
1733 * p2p_set_own_freq_preference - Set own preference for channel
1734 * @p2p: P2P module context from p2p_init()
1735 * @freq: Frequency (MHz) of the preferred channel or 0 if no preference
1737 * This function can be used to set a preference on the operating channel based
1738 * on frequencies used on the other virtual interfaces that share the same
1739 * radio. If non-zero, this is used to try to avoid multi-channel concurrency.
1741 void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq);
1743 const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p);
1746 * p2p_get_group_num_members - Get number of members in group
1747 * @group: P2P group context from p2p_group_init()
1748 * Returns: Number of members in the group
1750 unsigned int p2p_get_group_num_members(struct p2p_group *group);
1753 * p2p_iterate_group_members - Iterate group members
1754 * @group: P2P group context from p2p_group_init()
1755 * @next: iteration pointer, must be a pointer to a void * that is set to %NULL
1756 * on the first call and not modified later
1757 * Returns: A P2P Interface Address for each call and %NULL for no more members
1759 const u8 * p2p_iterate_group_members(struct p2p_group *group, void **next);
1762 * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group
1763 * @group: P2P group context from p2p_group_init()
1764 * @addr: P2P Interface Address of the client
1765 * Returns: P2P Device Address of the client if found or %NULL if no match
1768 const u8 * p2p_group_get_dev_addr(struct p2p_group *group, const u8 *addr);
1771 * p2p_group_is_client_connected - Check whether a specific client is connected
1772 * @group: P2P group context from p2p_group_init()
1773 * @addr: P2P Device Address of the client
1774 * Returns: 1 if client is connected or 0 if not
1776 int p2p_group_is_client_connected(struct p2p_group *group, const u8 *dev_addr);
1779 * p2p_get_peer_found - Get P2P peer info structure of a found peer
1780 * @p2p: P2P module context from p2p_init()
1781 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1782 * @next: Whether to select the peer entry following the one indicated by addr
1783 * Returns: The first P2P peer info available or %NULL if no such peer exists
1785 const struct p2p_peer_info *
1786 p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next);
1789 * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions
1790 * @p2p: P2P module context from p2p_init()
1792 void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p);
1795 * p2p_add_wps_vendor_extension - Add a WPS vendor extension
1796 * @p2p: P2P module context from p2p_init()
1797 * @vendor_ext: The vendor extensions to add
1798 * Returns: 0 on success, -1 on failure
1800 * The wpabuf structures in the array are owned by the P2P
1801 * module after this call.
1803 int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
1804 const struct wpabuf *vendor_ext);
1807 * p2p_set_oper_channel - Set the P2P operating channel
1808 * @p2p: P2P module context from p2p_init()
1809 * @op_reg_class: Operating regulatory class to set
1810 * @op_channel: operating channel to set
1811 * @cfg_op_channel : Whether op_channel is hardcoded in configuration
1812 * Returns: 0 on success, -1 on failure
1814 int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
1815 int cfg_op_channel);
1818 * p2p_set_pref_chan - Set P2P preferred channel list
1819 * @p2p: P2P module context from p2p_init()
1820 * @num_pref_chan: Number of entries in pref_chan list
1821 * @pref_chan: Preferred channels or %NULL to remove preferences
1822 * Returns: 0 on success, -1 on failure
1824 int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan,
1825 const struct p2p_channel *pref_chan);
1828 * p2p_set_no_go_freq - Set no GO channel ranges
1829 * @p2p: P2P module context from p2p_init()
1830 * @list: Channel ranges or %NULL to remove restriction
1831 * Returns: 0 on success, -1 on failure
1833 int p2p_set_no_go_freq(struct p2p_data *p2p,
1834 const struct wpa_freq_range_list *list);
1837 * p2p_in_progress - Check whether a P2P operation is progress
1838 * @p2p: P2P module context from p2p_init()
1839 * Returns: 0 if P2P module is idle or 1 if an operation is in progress
1841 int p2p_in_progress(struct p2p_data *p2p);
1843 const char * p2p_wps_method_text(enum p2p_wps_method method);
1846 * p2p_set_config_timeout - Set local config timeouts
1847 * @p2p: P2P module context from p2p_init()
1848 * @go_timeout: Time in 10 ms units it takes to start the GO mode
1849 * @client_timeout: Time in 10 ms units it takes to start the client mode
1851 void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout,
1854 int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie);
1855 int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie);
1856 int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie);
1857 int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie);
1858 int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie);
1859 int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie);
1860 int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie);
1861 int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie);
1862 int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem);
1863 int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem);
1864 int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p,
1865 const struct wpabuf *elem);
1866 struct wpabuf * wifi_display_encaps(struct wpabuf *subelems);
1869 * p2p_set_disc_int - Set min/max discoverable interval for p2p_find
1870 * @p2p: P2P module context from p2p_init()
1871 * @min_disc_int: minDiscoverableInterval (in units of 100 TU); default 1
1872 * @max_disc_int: maxDiscoverableInterval (in units of 100 TU); default 3
1873 * @max_disc_tu: Maximum number of TUs (1.024 ms) for discoverable interval; or
1875 * Returns: 0 on success, or -1 on failure
1877 * This function can be used to configure minDiscoverableInterval and
1878 * maxDiscoverableInterval parameters for the Listen state during device
1879 * discovery (p2p_find). A random number of 100 TU units is picked for each
1880 * Listen state iteration from [min_disc_int,max_disc_int] range.
1882 * max_disc_tu can be used to futher limit the discoverable duration. However,
1883 * it should be noted that use of this parameter is not recommended since it
1884 * would not be compliant with the P2P specification.
1886 int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int,
1890 * p2p_get_state_txt - Get current P2P state for debug purposes
1891 * @p2p: P2P module context from p2p_init()
1892 * Returns: Name of the current P2P module state
1894 * It should be noted that the P2P module state names are internal information
1895 * and subject to change at any point, i.e., this information should be used
1896 * mainly for debugging purposes.
1898 const char * p2p_get_state_txt(struct p2p_data *p2p);