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
762 * This callback is used to indicate result of an Invitation procedure
763 * started with a call to p2p_invite(). The indicated status code is
764 * the value received from the peer in Invitation Response with 0
765 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a
766 * local failure in transmitting the Invitation Request.
768 void (*invitation_result
)(void *ctx
, int status
, const u8
*bssid
,
769 const struct p2p_channels
*channels
,
773 * go_connected - Check whether we are connected to a GO
774 * @ctx: Callback context from cb_ctx
775 * @dev_addr: P2P Device Address of a GO
776 * Returns: 1 if we are connected as a P2P client to the specified GO
779 int (*go_connected
)(void *ctx
, const u8
*dev_addr
);
783 /* P2P module initialization/deinitialization */
786 * p2p_init - Initialize P2P module
787 * @cfg: P2P module configuration
788 * Returns: Pointer to private data or %NULL on failure
790 * This function is used to initialize global P2P module context (one per
791 * device). The P2P module will keep a copy of the configuration data, so the
792 * caller does not need to maintain this structure. However, the callback
793 * functions and the context parameters to them must be kept available until
794 * the P2P module is deinitialized with p2p_deinit().
796 struct p2p_data
* p2p_init(const struct p2p_config
*cfg
);
799 * p2p_deinit - Deinitialize P2P module
800 * @p2p: P2P module context from p2p_init()
802 void p2p_deinit(struct p2p_data
*p2p
);
805 * p2p_flush - Flush P2P module state
806 * @p2p: P2P module context from p2p_init()
808 * This command removes the P2P module state like peer device entries.
810 void p2p_flush(struct p2p_data
*p2p
);
813 * p2p_unauthorize - Unauthorize the specified peer device
814 * @p2p: P2P module context from p2p_init()
815 * @addr: P2P peer entry to be unauthorized
816 * Returns: 0 on success, -1 on failure
818 * This command removes any connection authorization from the specified P2P
819 * peer device address. This can be used, e.g., to cancel effect of a previous
820 * p2p_authorize() or p2p_connect() call that has not yet resulted in completed
823 int p2p_unauthorize(struct p2p_data
*p2p
, const u8
*addr
);
826 * p2p_set_dev_name - Set device name
827 * @p2p: P2P module context from p2p_init()
828 * Returns: 0 on success, -1 on failure
830 * This function can be used to update the P2P module configuration with
831 * information that was not available at the time of the p2p_init() call.
833 int p2p_set_dev_name(struct p2p_data
*p2p
, const char *dev_name
);
835 int p2p_set_manufacturer(struct p2p_data
*p2p
, const char *manufacturer
);
836 int p2p_set_model_name(struct p2p_data
*p2p
, const char *model_name
);
837 int p2p_set_model_number(struct p2p_data
*p2p
, const char *model_number
);
838 int p2p_set_serial_number(struct p2p_data
*p2p
, const char *serial_number
);
840 void p2p_set_config_methods(struct p2p_data
*p2p
, u16 config_methods
);
841 void p2p_set_uuid(struct p2p_data
*p2p
, const u8
*uuid
);
844 * p2p_set_pri_dev_type - Set primary device type
845 * @p2p: P2P module context from p2p_init()
846 * Returns: 0 on success, -1 on failure
848 * This function can be used to update the P2P module configuration with
849 * information that was not available at the time of the p2p_init() call.
851 int p2p_set_pri_dev_type(struct p2p_data
*p2p
, const u8
*pri_dev_type
);
854 * p2p_set_sec_dev_types - Set secondary device types
855 * @p2p: P2P module context from p2p_init()
856 * Returns: 0 on success, -1 on failure
858 * This function can be used to update the P2P module configuration with
859 * information that was not available at the time of the p2p_init() call.
861 int p2p_set_sec_dev_types(struct p2p_data
*p2p
, const u8 dev_types
[][8],
862 size_t num_dev_types
);
864 int p2p_set_country(struct p2p_data
*p2p
, const char *country
);
867 /* Commands from upper layer management entity */
869 enum p2p_discovery_type
{
870 P2P_FIND_START_WITH_FULL
,
871 P2P_FIND_ONLY_SOCIAL
,
876 * p2p_find - Start P2P Find (Device Discovery)
877 * @p2p: P2P module context from p2p_init()
878 * @timeout: Timeout for find operation in seconds or 0 for no timeout
879 * @type: Device Discovery type
880 * @num_req_dev_types: Number of requested device types
881 * @req_dev_types: Requested device types array, must be an array
882 * containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no
883 * requested device types.
884 * @dev_id: Device ID to search for or %NULL to find all devices
885 * @search_delay: Extra delay in milliseconds between search iterations
886 * Returns: 0 on success, -1 on failure
888 int p2p_find(struct p2p_data
*p2p
, unsigned int timeout
,
889 enum p2p_discovery_type type
,
890 unsigned int num_req_dev_types
, const u8
*req_dev_types
,
891 const u8
*dev_id
, unsigned int search_delay
);
894 * p2p_stop_find - Stop P2P Find (Device Discovery)
895 * @p2p: P2P module context from p2p_init()
897 void p2p_stop_find(struct p2p_data
*p2p
);
900 * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq
901 * @p2p: P2P module context from p2p_init()
902 * @freq: Frequency in MHz for next operation
904 * This is like p2p_stop_find(), but Listen state is not stopped if we are
905 * already on the same frequency.
907 void p2p_stop_find_for_freq(struct p2p_data
*p2p
, int freq
);
910 * p2p_listen - Start P2P Listen state for specified duration
911 * @p2p: P2P module context from p2p_init()
912 * @timeout: Listen state duration in milliseconds
913 * Returns: 0 on success, -1 on failure
915 * This function can be used to request the P2P module to keep the device
916 * discoverable on the listen channel for an extended set of time. At least in
917 * its current form, this is mainly used for testing purposes and may not be of
918 * much use for normal P2P operations.
920 int p2p_listen(struct p2p_data
*p2p
, unsigned int timeout
);
923 * p2p_stop_listen - Stop P2P Listen
924 * @p2p: P2P module context from p2p_init()
926 void p2p_stop_listen(struct p2p_data
*p2p
);
929 * p2p_connect - Start P2P group formation (GO negotiation)
930 * @p2p: P2P module context from p2p_init()
931 * @peer_addr: MAC address of the peer P2P client
932 * @wps_method: WPS method to be used in provisioning
933 * @go_intent: Local GO intent value (1..15)
934 * @own_interface_addr: Intended interface address to use with the group
935 * @force_freq: The only allowed channel frequency in MHz or 0
936 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
937 * persistent group without persistent reconnect, 2 = persistent group with
938 * persistent reconnect)
939 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
941 * @force_ssid_len: Length of $force_ssid buffer
942 * @pd_before_go_neg: Whether to send Provision Discovery prior to GO
943 * Negotiation as an interoperability workaround when initiating group
945 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if
947 * Returns: 0 on success, -1 on failure
949 int p2p_connect(struct p2p_data
*p2p
, const u8
*peer_addr
,
950 enum p2p_wps_method wps_method
,
951 int go_intent
, const u8
*own_interface_addr
,
952 unsigned int force_freq
, int persistent_group
,
953 const u8
*force_ssid
, size_t force_ssid_len
,
954 int pd_before_go_neg
, unsigned int pref_freq
);
957 * p2p_authorize - Authorize P2P group formation (GO negotiation)
958 * @p2p: P2P module context from p2p_init()
959 * @peer_addr: MAC address of the peer P2P client
960 * @wps_method: WPS method to be used in provisioning
961 * @go_intent: Local GO intent value (1..15)
962 * @own_interface_addr: Intended interface address to use with the group
963 * @force_freq: The only allowed channel frequency in MHz or 0
964 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
965 * persistent group without persistent reconnect, 2 = persistent group with
966 * persistent reconnect)
967 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
969 * @force_ssid_len: Length of $force_ssid buffer
970 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if
972 * Returns: 0 on success, -1 on failure
974 * This is like p2p_connect(), but the actual group negotiation is not
975 * initiated automatically, i.e., the other end is expected to do that.
977 int p2p_authorize(struct p2p_data
*p2p
, const u8
*peer_addr
,
978 enum p2p_wps_method wps_method
,
979 int go_intent
, const u8
*own_interface_addr
,
980 unsigned int force_freq
, int persistent_group
,
981 const u8
*force_ssid
, size_t force_ssid_len
,
982 unsigned int pref_freq
);
985 * p2p_reject - Reject peer device (explicitly block connection attempts)
986 * @p2p: P2P module context from p2p_init()
987 * @peer_addr: MAC address of the peer P2P client
988 * Returns: 0 on success, -1 on failure
990 int p2p_reject(struct p2p_data
*p2p
, const u8
*peer_addr
);
993 * p2p_prov_disc_req - Send Provision Discovery Request
994 * @p2p: P2P module context from p2p_init()
995 * @peer_addr: MAC address of the peer P2P client
996 * @config_methods: WPS Config Methods value (only one bit set)
997 * @join: Whether this is used by a client joining an active group
998 * @force_freq: Forced TX frequency for the frame (mainly for the join case)
999 * @user_initiated_pd: Flag to indicate if initiated by user or not
1000 * Returns: 0 on success, -1 on failure
1002 * This function can be used to request a discovered P2P peer to display a PIN
1003 * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us
1004 * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame
1005 * is transmitted once immediately and if no response is received, the frame
1006 * will be sent again whenever the target device is discovered during device
1007 * dsicovery (start with a p2p_find() call). Response from the peer is
1008 * indicated with the p2p_config::prov_disc_resp() callback.
1010 int p2p_prov_disc_req(struct p2p_data
*p2p
, const u8
*peer_addr
,
1011 u16 config_methods
, int join
, int force_freq
,
1012 int user_initiated_pd
);
1015 * p2p_sd_request - Schedule a service discovery query
1016 * @p2p: P2P module context from p2p_init()
1017 * @dst: Destination peer or %NULL to apply for all peers
1018 * @tlvs: P2P Service Query TLV(s)
1019 * Returns: Reference to the query or %NULL on failure
1021 * Response to the query is indicated with the p2p_config::sd_response()
1024 void * p2p_sd_request(struct p2p_data
*p2p
, const u8
*dst
,
1025 const struct wpabuf
*tlvs
);
1027 #ifdef CONFIG_WIFI_DISPLAY
1028 void * p2p_sd_request_wfd(struct p2p_data
*p2p
, const u8
*dst
,
1029 const struct wpabuf
*tlvs
);
1030 #endif /* CONFIG_WIFI_DISPLAY */
1033 * p2p_sd_cancel_request - Cancel a pending service discovery query
1034 * @p2p: P2P module context from p2p_init()
1035 * @req: Query reference from p2p_sd_request()
1036 * Returns: 0 if request for cancelled; -1 if not found
1038 int p2p_sd_cancel_request(struct p2p_data
*p2p
, void *req
);
1041 * p2p_sd_response - Send response to a service discovery query
1042 * @p2p: P2P module context from p2p_init()
1043 * @freq: Frequency from p2p_config::sd_request() callback
1044 * @dst: Destination address from p2p_config::sd_request() callback
1045 * @dialog_token: Dialog token from p2p_config::sd_request() callback
1046 * @resp_tlvs: P2P Service Response TLV(s)
1048 * This function is called as a response to the request indicated with
1049 * p2p_config::sd_request() callback.
1051 void p2p_sd_response(struct p2p_data
*p2p
, int freq
, const u8
*dst
,
1052 u8 dialog_token
, const struct wpabuf
*resp_tlvs
);
1055 * p2p_sd_service_update - Indicate a change in local services
1056 * @p2p: P2P module context from p2p_init()
1058 * This function needs to be called whenever there is a change in availability
1059 * of the local services. This will increment the Service Update Indicator
1060 * value which will be used in SD Request and Response frames.
1062 void p2p_sd_service_update(struct p2p_data
*p2p
);
1065 enum p2p_invite_role
{
1067 P2P_INVITE_ROLE_ACTIVE_GO
,
1068 P2P_INVITE_ROLE_CLIENT
1072 * p2p_invite - Invite a P2P Device into a group
1073 * @p2p: P2P module context from p2p_init()
1074 * @peer: Device Address of the peer P2P Device
1075 * @role: Local role in the group
1076 * @bssid: Group BSSID or %NULL if not known
1078 * @ssid_len: Length of ssid in octets
1079 * @force_freq: The only allowed channel frequency in MHz or 0
1080 * @go_dev_addr: Forced GO Device Address or %NULL if none
1081 * @persistent_group: Whether this is to reinvoke a persistent group
1082 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if
1084 * Returns: 0 on success, -1 on failure
1086 int p2p_invite(struct p2p_data
*p2p
, const u8
*peer
, enum p2p_invite_role role
,
1087 const u8
*bssid
, const u8
*ssid
, size_t ssid_len
,
1088 unsigned int force_freq
, const u8
*go_dev_addr
,
1089 int persistent_group
, unsigned int pref_freq
);
1092 * p2p_presence_req - Request GO presence
1093 * @p2p: P2P module context from p2p_init()
1094 * @go_interface_addr: GO P2P Interface Address
1095 * @own_interface_addr: Own P2P Interface Address for this group
1096 * @freq: Group operating frequence (in MHz)
1097 * @duration1: Preferred presence duration in microseconds
1098 * @interval1: Preferred presence interval in microseconds
1099 * @duration2: Acceptable presence duration in microseconds
1100 * @interval2: Acceptable presence interval in microseconds
1101 * Returns: 0 on success, -1 on failure
1103 * If both duration and interval values are zero, the parameter pair is not
1104 * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0).
1106 int p2p_presence_req(struct p2p_data
*p2p
, const u8
*go_interface_addr
,
1107 const u8
*own_interface_addr
, unsigned int freq
,
1108 u32 duration1
, u32 interval1
, u32 duration2
,
1112 * p2p_ext_listen - Set Extended Listen Timing
1113 * @p2p: P2P module context from p2p_init()
1114 * @freq: Group operating frequence (in MHz)
1115 * @period: Availability period in milliseconds (1-65535; 0 to disable)
1116 * @interval: Availability interval in milliseconds (1-65535; 0 to disable)
1117 * Returns: 0 on success, -1 on failure
1119 * This function can be used to enable or disable (period = interval = 0)
1120 * Extended Listen Timing. When enabled, the P2P Device will become
1121 * discoverable (go into Listen State) every @interval milliseconds for at
1122 * least @period milliseconds.
1124 int p2p_ext_listen(struct p2p_data
*p2p
, unsigned int period
,
1125 unsigned int interval
);
1127 /* Event notifications from upper layer management operations */
1130 * p2p_wps_success_cb - Report successfully completed WPS provisioning
1131 * @p2p: P2P module context from p2p_init()
1132 * @mac_addr: Peer address
1134 * This function is used to report successfully completed WPS provisioning
1135 * during group formation in both GO/Registrar and client/Enrollee roles.
1137 void p2p_wps_success_cb(struct p2p_data
*p2p
, const u8
*mac_addr
);
1140 * p2p_group_formation_failed - Report failed WPS provisioning
1141 * @p2p: P2P module context from p2p_init()
1143 * This function is used to report failed group formation. This can happen
1144 * either due to failed WPS provisioning or due to 15 second timeout during
1145 * the provisioning phase.
1147 void p2p_group_formation_failed(struct p2p_data
*p2p
);
1150 * p2p_get_provisioning_info - Get any stored provisioning info
1151 * @p2p: P2P module context from p2p_init()
1152 * @addr: Peer P2P Device Address
1153 * Returns: WPS provisioning information (WPS config method) or 0 if no
1154 * information is available
1156 * This function is used to retrieve stored WPS provisioning info for the given
1159 u16
p2p_get_provisioning_info(struct p2p_data
*p2p
, const u8
*addr
);
1162 * p2p_clear_provisioning_info - Clear any stored provisioning info
1163 * @p2p: P2P module context from p2p_init()
1164 * @iface_addr: Peer P2P Device Address
1166 * This function is used to clear stored WPS provisioning info for the given
1169 void p2p_clear_provisioning_info(struct p2p_data
*p2p
, const u8
*addr
);
1172 /* Event notifications from lower layer driver operations */
1175 * enum p2p_probe_req_status
1177 * @P2P_PREQ_MALFORMED: frame was not well-formed
1178 * @P2P_PREQ_NOT_LISTEN: device isn't in listen state, frame ignored
1179 * @P2P_PREQ_NOT_P2P: frame was not a P2P probe request
1180 * @P2P_PREQ_P2P_NOT_PROCESSED: frame was P2P but wasn't processed
1181 * @P2P_PREQ_P2P_PROCESSED: frame has been processed by P2P
1183 enum p2p_probe_req_status
{
1185 P2P_PREQ_NOT_LISTEN
,
1187 P2P_PREQ_NOT_PROCESSED
,
1192 * p2p_probe_req_rx - Report reception of a Probe Request frame
1193 * @p2p: P2P module context from p2p_init()
1194 * @addr: Source MAC address
1195 * @dst: Destination MAC address if available or %NULL
1196 * @bssid: BSSID if available or %NULL
1197 * @ie: Information elements from the Probe Request frame body
1198 * @ie_len: Length of ie buffer in octets
1199 * Returns: value indicating the type and status of the probe request
1201 enum p2p_probe_req_status
1202 p2p_probe_req_rx(struct p2p_data
*p2p
, const u8
*addr
, const u8
*dst
,
1203 const u8
*bssid
, const u8
*ie
, size_t ie_len
);
1206 * p2p_rx_action - Report received Action frame
1207 * @p2p: P2P module context from p2p_init()
1208 * @da: Destination address of the received Action frame
1209 * @sa: Source address of the received Action frame
1210 * @bssid: Address 3 of the received Action frame
1211 * @category: Category of the received Action frame
1212 * @data: Action frame body after the Category field
1213 * @len: Length of the data buffer in octets
1214 * @freq: Frequency (in MHz) on which the frame was received
1216 void p2p_rx_action(struct p2p_data
*p2p
, const u8
*da
, const u8
*sa
,
1217 const u8
*bssid
, u8 category
,
1218 const u8
*data
, size_t len
, int freq
);
1221 * p2p_scan_res_handler - Indicate a P2P scan results
1222 * @p2p: P2P module context from p2p_init()
1223 * @bssid: BSSID of the scan result
1224 * @freq: Frequency of the channel on which the device was found in MHz
1225 * @rx_time: Time when the result was received
1226 * @level: Signal level (signal strength of the received Beacon/Probe Response
1228 * @ies: Pointer to IEs from the scan result
1229 * @ies_len: Length of the ies buffer
1230 * Returns: 0 to continue or 1 to stop scan result indication
1232 * This function is called to indicate a scan result entry with P2P IE from a
1233 * scan requested with struct p2p_config::p2p_scan(). This can be called during
1234 * the actual scan process (i.e., whenever a new device is found) or as a
1235 * sequence of calls after the full scan has been completed. The former option
1236 * can result in optimized operations, but may not be supported by all
1237 * driver/firmware designs. The ies buffer need to include at least the P2P IE,
1238 * but it is recommended to include all IEs received from the device. The
1239 * caller does not need to check that the IEs contain a P2P IE before calling
1240 * this function since frames will be filtered internally if needed.
1242 * This function will return 1 if it wants to stop scan result iteration (and
1243 * scan in general if it is still in progress). This is used to allow faster
1244 * start of a pending operation, e.g., to start a pending GO negotiation.
1246 int p2p_scan_res_handler(struct p2p_data
*p2p
, const u8
*bssid
, int freq
,
1247 struct os_time
*rx_time
, int level
, const u8
*ies
,
1251 * p2p_scan_res_handled - Indicate end of scan results
1252 * @p2p: P2P module context from p2p_init()
1254 * This function is called to indicate that all P2P scan results from a scan
1255 * have been reported with zero or more calls to p2p_scan_res_handler(). This
1256 * function must be called as a response to successful
1257 * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler()
1258 * calls stopped iteration.
1260 void p2p_scan_res_handled(struct p2p_data
*p2p
);
1262 enum p2p_send_action_result
{
1263 P2P_SEND_ACTION_SUCCESS
/* Frame was send and acknowledged */,
1264 P2P_SEND_ACTION_NO_ACK
/* Frame was sent, but not acknowledged */,
1265 P2P_SEND_ACTION_FAILED
/* Frame was not sent due to a failure */
1269 * p2p_send_action_cb - Notify TX status of an Action frame
1270 * @p2p: P2P module context from p2p_init()
1271 * @freq: Channel frequency in MHz
1272 * @dst: Destination MAC address (Address 1)
1273 * @src: Source MAC address (Address 2)
1274 * @bssid: BSSID (Address 3)
1275 * @result: Result of the transmission attempt
1277 * This function is used to indicate the result of an Action frame transmission
1278 * that was requested with struct p2p_config::send_action() callback.
1280 void p2p_send_action_cb(struct p2p_data
*p2p
, unsigned int freq
, const u8
*dst
,
1281 const u8
*src
, const u8
*bssid
,
1282 enum p2p_send_action_result result
);
1285 * p2p_listen_cb - Indicate the start of a requested Listen state
1286 * @p2p: P2P module context from p2p_init()
1287 * @freq: Listen channel frequency in MHz
1288 * @duration: Duration for the Listen state in milliseconds
1290 * This function is used to indicate that a Listen state requested with
1291 * struct p2p_config::start_listen() callback has started.
1293 void p2p_listen_cb(struct p2p_data
*p2p
, unsigned int freq
,
1294 unsigned int duration
);
1297 * p2p_listen_end - Indicate the end of a requested Listen state
1298 * @p2p: P2P module context from p2p_init()
1299 * @freq: Listen channel frequency in MHz
1300 * Returns: 0 if no operations were started, 1 if an operation was started
1302 * This function is used to indicate that a Listen state requested with
1303 * struct p2p_config::start_listen() callback has ended.
1305 int p2p_listen_end(struct p2p_data
*p2p
, unsigned int freq
);
1307 void p2p_deauth_notif(struct p2p_data
*p2p
, const u8
*bssid
, u16 reason_code
,
1308 const u8
*ie
, size_t ie_len
);
1310 void p2p_disassoc_notif(struct p2p_data
*p2p
, const u8
*bssid
, u16 reason_code
,
1311 const u8
*ie
, size_t ie_len
);
1314 /* Per-group P2P state for GO */
1319 * struct p2p_group_config - P2P group configuration
1321 * This configuration is provided to the P2P module during initialization of
1322 * the per-group information with p2p_group_init().
1324 struct p2p_group_config
{
1326 * persistent_group - Whether the group is persistent
1327 * 0 = not a persistent group
1328 * 1 = persistent group without persistent reconnect
1329 * 2 = persistent group with persistent reconnect
1331 int persistent_group
;
1334 * interface_addr - P2P Interface Address of the group
1336 u8 interface_addr
[ETH_ALEN
];
1339 * max_clients - Maximum number of clients in the group
1341 unsigned int max_clients
;
1349 * ssid_len - Length of SSID
1354 * cb_ctx - Context to use with callback functions
1359 * ie_update - Notification of IE update
1360 * @ctx: Callback context from cb_ctx
1361 * @beacon_ies: P2P IE for Beacon frames or %NULL if no change
1362 * @proberesp_ies: P2P Ie for Probe Response frames
1364 * P2P module uses this callback function to notify whenever the P2P IE
1365 * in Beacon or Probe Response frames should be updated based on group
1368 * The callee is responsible for freeing the returned buffer(s) with
1371 void (*ie_update
)(void *ctx
, struct wpabuf
*beacon_ies
,
1372 struct wpabuf
*proberesp_ies
);
1375 * idle_update - Notification of changes in group idle state
1376 * @ctx: Callback context from cb_ctx
1377 * @idle: Whether the group is idle (no associated stations)
1379 void (*idle_update
)(void *ctx
, int idle
);
1383 * p2p_group_init - Initialize P2P group
1384 * @p2p: P2P module context from p2p_init()
1385 * @config: P2P group configuration (will be freed by p2p_group_deinit())
1386 * Returns: Pointer to private data or %NULL on failure
1388 * This function is used to initialize per-group P2P module context. Currently,
1389 * this is only used to manage GO functionality and P2P clients do not need to
1390 * create an instance of this per-group information.
1392 struct p2p_group
* p2p_group_init(struct p2p_data
*p2p
,
1393 struct p2p_group_config
*config
);
1396 * p2p_group_deinit - Deinitialize P2P group
1397 * @group: P2P group context from p2p_group_init()
1399 void p2p_group_deinit(struct p2p_group
*group
);
1402 * p2p_group_notif_assoc - Notification of P2P client association with GO
1403 * @group: P2P group context from p2p_group_init()
1404 * @addr: Interface address of the P2P client
1405 * @ie: IEs from the (Re)association Request frame
1406 * @len: Length of the ie buffer in octets
1407 * Returns: 0 on success, -1 on failure
1409 int p2p_group_notif_assoc(struct p2p_group
*group
, const u8
*addr
,
1410 const u8
*ie
, size_t len
);
1413 * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response
1414 * @group: P2P group context from p2p_group_init()
1415 * @status: Status value (P2P_SC_SUCCESS if association succeeded)
1416 * Returns: P2P IE for (Re)association Response or %NULL on failure
1418 * The caller is responsible for freeing the returned buffer with
1421 struct wpabuf
* p2p_group_assoc_resp_ie(struct p2p_group
*group
, u8 status
);
1424 * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO
1425 * @group: P2P group context from p2p_group_init()
1426 * @addr: Interface address of the P2P client
1428 void p2p_group_notif_disassoc(struct p2p_group
*group
, const u8
*addr
);
1431 * p2p_group_notif_formation_done - Notification of completed group formation
1432 * @group: P2P group context from p2p_group_init()
1434 void p2p_group_notif_formation_done(struct p2p_group
*group
);
1437 * p2p_group_notif_noa - Notification of NoA change
1438 * @group: P2P group context from p2p_group_init()
1439 * @noa: Notice of Absence attribute payload, %NULL if none
1440 * @noa_len: Length of noa buffer in octets
1441 * Returns: 0 on success, -1 on failure
1443 * Notify the P2P group management about a new NoA contents. This will be
1444 * inserted into the P2P IEs in Beacon and Probe Response frames with rest of
1445 * the group information.
1447 int p2p_group_notif_noa(struct p2p_group
*group
, const u8
*noa
,
1451 * p2p_group_match_dev_type - Match device types in group with requested type
1452 * @group: P2P group context from p2p_group_init()
1453 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1454 * Returns: 1 on match, 0 on mismatch
1456 * This function can be used to match the Requested Device Type attribute in
1457 * WPS IE with the device types of a group member for deciding whether a GO
1458 * should reply to a Probe Request frame. Match will be reported if the WPS IE
1459 * is not requested any specific device type.
1461 int p2p_group_match_dev_type(struct p2p_group
*group
, struct wpabuf
*wps
);
1464 * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id
1466 int p2p_group_match_dev_id(struct p2p_group
*group
, struct wpabuf
*p2p
);
1469 * p2p_group_go_discover - Send GO Discoverability Request to a group client
1470 * @group: P2P group context from p2p_group_init()
1471 * Returns: 0 on success (frame scheduled); -1 if client was not found
1473 int p2p_group_go_discover(struct p2p_group
*group
, const u8
*dev_id
,
1474 const u8
*searching_dev
, int rx_freq
);
1477 /* Generic helper functions */
1480 * p2p_ie_text - Build text format description of P2P IE
1482 * @buf: Buffer for returning text
1483 * @end: Pointer to the end of the buf area
1484 * Returns: Number of octets written to the buffer or -1 on failure
1486 * This function can be used to parse P2P IE contents into text format
1487 * field=value lines.
1489 int p2p_ie_text(struct wpabuf
*p2p_ie
, char *buf
, char *end
);
1492 * p2p_scan_result_text - Build text format description of P2P IE
1493 * @ies: Information elements from scan results
1494 * @ies_len: ies buffer length in octets
1495 * @buf: Buffer for returning text
1496 * @end: Pointer to the end of the buf area
1497 * Returns: Number of octets written to the buffer or -1 on failure
1499 * This function can be used to parse P2P IE contents into text format
1500 * field=value lines.
1502 int p2p_scan_result_text(const u8
*ies
, size_t ies_len
, char *buf
, char *end
);
1505 * p2p_parse_dev_addr_in_p2p_ie - Parse P2P Device Address from a concatenated
1508 * @dev_addr: Buffer for returning P2P Device Address
1509 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1511 int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf
*p2p_ie
, u8
*dev_addr
);
1514 * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s)
1515 * @ies: Information elements from scan results
1516 * @ies_len: ies buffer length in octets
1517 * @dev_addr: Buffer for returning P2P Device Address
1518 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1520 int p2p_parse_dev_addr(const u8
*ies
, size_t ies_len
, u8
*dev_addr
);
1523 * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame
1524 * @p2p: P2P module context from p2p_init()
1526 * @buf: Buffer for writing the P2P IE
1527 * @len: Maximum buf length in octets
1528 * @p2p_group: Whether this is for association with a P2P GO
1529 * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none
1530 * Returns: Number of octets written into buf or -1 on failure
1532 int p2p_assoc_req_ie(struct p2p_data
*p2p
, const u8
*bssid
, u8
*buf
,
1533 size_t len
, int p2p_group
, struct wpabuf
*p2p_ie
);
1536 * p2p_scan_ie - Build P2P IE for Probe Request
1537 * @p2p: P2P module context from p2p_init()
1538 * @ies: Buffer for writing P2P IE
1539 * @dev_id: Device ID to search for or %NULL for any
1541 void p2p_scan_ie(struct p2p_data
*p2p
, struct wpabuf
*ies
, const u8
*dev_id
);
1544 * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie
1545 * @p2p: P2P module context from p2p_init()
1546 * Returns: Number of octets that p2p_scan_ie() may add to the buffer
1548 size_t p2p_scan_ie_buf_len(struct p2p_data
*p2p
);
1551 * p2p_go_params - Generate random P2P group parameters
1552 * @p2p: P2P module context from p2p_init()
1553 * @params: Buffer for parameters
1554 * Returns: 0 on success, -1 on failure
1556 int p2p_go_params(struct p2p_data
*p2p
, struct p2p_go_neg_results
*params
);
1559 * p2p_get_group_capab - Get Group Capability from P2P IE data
1560 * @p2p_ie: P2P IE(s) contents
1561 * Returns: Group Capability
1563 u8
p2p_get_group_capab(const struct wpabuf
*p2p_ie
);
1566 * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection
1567 * @p2p_ie: P2P IE(s) contents
1568 * Returns: 0 if cross connection is allow, 1 if not
1570 int p2p_get_cross_connect_disallowed(const struct wpabuf
*p2p_ie
);
1573 * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data
1574 * @p2p_ie: P2P IE(s) contents
1575 * Returns: Pointer to P2P Device Address or %NULL if not included
1577 const u8
* p2p_get_go_dev_addr(const struct wpabuf
*p2p_ie
);
1580 * p2p_get_peer_info - Get P2P peer information
1581 * @p2p: P2P module context from p2p_init()
1582 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1583 * @next: Whether to select the peer entry following the one indicated by addr
1584 * Returns: Pointer to peer info or %NULL if not found
1586 const struct p2p_peer_info
* p2p_get_peer_info(struct p2p_data
*p2p
,
1587 const u8
*addr
, int next
);
1590 * p2p_get_peer_info_txt - Get internal P2P peer information in text format
1591 * @info: Pointer to P2P peer info from p2p_get_peer_info()
1592 * @buf: Buffer for returning text
1593 * @buflen: Maximum buffer length
1594 * Returns: Number of octets written to the buffer or -1 on failure
1596 * Note: This information is internal to the P2P module and subject to change.
1597 * As such, this should not really be used by external programs for purposes
1598 * other than debugging.
1600 int p2p_get_peer_info_txt(const struct p2p_peer_info
*info
,
1601 char *buf
, size_t buflen
);
1604 * p2p_peer_known - Check whether P2P peer is known
1605 * @p2p: P2P module context from p2p_init()
1606 * @addr: P2P Device Address of the peer
1607 * Returns: 1 if the specified device is in the P2P peer table or 0 if not
1609 int p2p_peer_known(struct p2p_data
*p2p
, const u8
*addr
);
1612 * p2p_set_client_discoverability - Set client discoverability capability
1613 * @p2p: P2P module context from p2p_init()
1614 * @enabled: Whether client discoverability will be enabled
1616 * This function can be used to disable (and re-enable) client discoverability.
1617 * This capability is enabled by default and should not be disabled in normal
1618 * use cases, i.e., this is mainly for testing purposes.
1620 void p2p_set_client_discoverability(struct p2p_data
*p2p
, int enabled
);
1623 * p2p_set_managed_oper - Set managed P2P Device operations capability
1624 * @p2p: P2P module context from p2p_init()
1625 * @enabled: Whether managed P2P Device operations will be enabled
1627 void p2p_set_managed_oper(struct p2p_data
*p2p
, int enabled
);
1629 int p2p_set_listen_channel(struct p2p_data
*p2p
, u8 reg_class
, u8 channel
);
1631 int p2p_set_ssid_postfix(struct p2p_data
*p2p
, const u8
*postfix
, size_t len
);
1633 int p2p_get_interface_addr(struct p2p_data
*p2p
, const u8
*dev_addr
,
1635 int p2p_get_dev_addr(struct p2p_data
*p2p
, const u8
*iface_addr
,
1638 void p2p_set_peer_filter(struct p2p_data
*p2p
, const u8
*addr
);
1641 * p2p_set_cross_connect - Set cross connection capability
1642 * @p2p: P2P module context from p2p_init()
1643 * @enabled: Whether cross connection will be enabled
1645 void p2p_set_cross_connect(struct p2p_data
*p2p
, int enabled
);
1647 int p2p_get_oper_freq(struct p2p_data
*p2p
, const u8
*iface_addr
);
1650 * p2p_set_intra_bss_dist - Set intra BSS distribution
1651 * @p2p: P2P module context from p2p_init()
1652 * @enabled: Whether intra BSS distribution will be enabled
1654 void p2p_set_intra_bss_dist(struct p2p_data
*p2p
, int enabled
);
1656 int p2p_channels_includes_freq(const struct p2p_channels
*channels
,
1660 * p2p_supported_freq - Check whether channel is supported for P2P
1661 * @p2p: P2P module context from p2p_init()
1662 * @freq: Channel frequency in MHz
1663 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
1665 int p2p_supported_freq(struct p2p_data
*p2p
, unsigned int freq
);
1668 * p2p_supported_freq_go - Check whether channel is supported for P2P GO operation
1669 * @p2p: P2P module context from p2p_init()
1670 * @freq: Channel frequency in MHz
1671 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
1673 int p2p_supported_freq_go(struct p2p_data
*p2p
, unsigned int freq
);
1676 * p2p_supported_freq_cli - Check whether channel is supported for P2P client operation
1677 * @p2p: P2P module context from p2p_init()
1678 * @freq: Channel frequency in MHz
1679 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
1681 int p2p_supported_freq_cli(struct p2p_data
*p2p
, unsigned int freq
);
1684 * p2p_get_pref_freq - Get channel from preferred channel list
1685 * @p2p: P2P module context from p2p_init()
1686 * @channels: List of channels
1687 * Returns: Preferred channel
1689 unsigned int p2p_get_pref_freq(struct p2p_data
*p2p
,
1690 const struct p2p_channels
*channels
);
1692 void p2p_update_channel_list(struct p2p_data
*p2p
,
1693 const struct p2p_channels
*chan
,
1694 const struct p2p_channels
*cli_chan
);
1697 * p2p_set_best_channels - Update best channel information
1698 * @p2p: P2P module context from p2p_init()
1699 * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band
1700 * @freq_5: Frequency (MHz) of best channel in 5 GHz band
1701 * @freq_overall: Frequency (MHz) of best channel overall
1703 void p2p_set_best_channels(struct p2p_data
*p2p
, int freq_24
, int freq_5
,
1707 * p2p_set_own_freq_preference - Set own preference for channel
1708 * @p2p: P2P module context from p2p_init()
1709 * @freq: Frequency (MHz) of the preferred channel or 0 if no preference
1711 * This function can be used to set a preference on the operating channel based
1712 * on frequencies used on the other virtual interfaces that share the same
1713 * radio. If non-zero, this is used to try to avoid multi-channel concurrency.
1715 void p2p_set_own_freq_preference(struct p2p_data
*p2p
, int freq
);
1717 const u8
* p2p_get_go_neg_peer(struct p2p_data
*p2p
);
1720 * p2p_get_group_num_members - Get number of members in group
1721 * @group: P2P group context from p2p_group_init()
1722 * Returns: Number of members in the group
1724 unsigned int p2p_get_group_num_members(struct p2p_group
*group
);
1727 * p2p_iterate_group_members - Iterate group members
1728 * @group: P2P group context from p2p_group_init()
1729 * @next: iteration pointer, must be a pointer to a void * that is set to %NULL
1730 * on the first call and not modified later
1731 * Returns: A P2P Interface Address for each call and %NULL for no more members
1733 const u8
* p2p_iterate_group_members(struct p2p_group
*group
, void **next
);
1736 * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group
1737 * @group: P2P group context from p2p_group_init()
1738 * @addr: P2P Interface Address of the client
1739 * Returns: P2P Device Address of the client if found or %NULL if no match
1742 const u8
* p2p_group_get_dev_addr(struct p2p_group
*group
, const u8
*addr
);
1745 * p2p_group_is_client_connected - Check whether a specific client is connected
1746 * @group: P2P group context from p2p_group_init()
1747 * @addr: P2P Device Address of the client
1748 * Returns: 1 if client is connected or 0 if not
1750 int p2p_group_is_client_connected(struct p2p_group
*group
, const u8
*dev_addr
);
1753 * p2p_get_peer_found - Get P2P peer info structure of a found peer
1754 * @p2p: P2P module context from p2p_init()
1755 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1756 * @next: Whether to select the peer entry following the one indicated by addr
1757 * Returns: The first P2P peer info available or %NULL if no such peer exists
1759 const struct p2p_peer_info
*
1760 p2p_get_peer_found(struct p2p_data
*p2p
, const u8
*addr
, int next
);
1763 * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions
1764 * @p2p: P2P module context from p2p_init()
1766 void p2p_remove_wps_vendor_extensions(struct p2p_data
*p2p
);
1769 * p2p_add_wps_vendor_extension - Add a WPS vendor extension
1770 * @p2p: P2P module context from p2p_init()
1771 * @vendor_ext: The vendor extensions to add
1772 * Returns: 0 on success, -1 on failure
1774 * The wpabuf structures in the array are owned by the P2P
1775 * module after this call.
1777 int p2p_add_wps_vendor_extension(struct p2p_data
*p2p
,
1778 const struct wpabuf
*vendor_ext
);
1781 * p2p_set_oper_channel - Set the P2P operating channel
1782 * @p2p: P2P module context from p2p_init()
1783 * @op_reg_class: Operating regulatory class to set
1784 * @op_channel: operating channel to set
1785 * @cfg_op_channel : Whether op_channel is hardcoded in configuration
1786 * Returns: 0 on success, -1 on failure
1788 int p2p_set_oper_channel(struct p2p_data
*p2p
, u8 op_reg_class
, u8 op_channel
,
1789 int cfg_op_channel
);
1792 * p2p_set_pref_chan - Set P2P preferred channel list
1793 * @p2p: P2P module context from p2p_init()
1794 * @num_pref_chan: Number of entries in pref_chan list
1795 * @pref_chan: Preferred channels or %NULL to remove preferences
1796 * Returns: 0 on success, -1 on failure
1798 int p2p_set_pref_chan(struct p2p_data
*p2p
, unsigned int num_pref_chan
,
1799 const struct p2p_channel
*pref_chan
);
1802 * p2p_set_no_go_freq - Set no GO channel ranges
1803 * @p2p: P2P module context from p2p_init()
1804 * @list: Channel ranges or %NULL to remove restriction
1805 * Returns: 0 on success, -1 on failure
1807 int p2p_set_no_go_freq(struct p2p_data
*p2p
,
1808 const struct wpa_freq_range_list
*list
);
1811 * p2p_in_progress - Check whether a P2P operation is progress
1812 * @p2p: P2P module context from p2p_init()
1813 * Returns: 0 if P2P module is idle or 1 if an operation is in progress
1815 int p2p_in_progress(struct p2p_data
*p2p
);
1818 * p2p_other_scan_completed - Notify completion of non-P2P scan
1819 * @p2p: P2P module context from p2p_init()
1820 * Returns: 0 if P2P module is idle or 1 if an operation was started
1822 int p2p_other_scan_completed(struct p2p_data
*p2p
);
1824 const char * p2p_wps_method_text(enum p2p_wps_method method
);
1827 * p2p_set_config_timeout - Set local config timeouts
1828 * @p2p: P2P module context from p2p_init()
1829 * @go_timeout: Time in 10 ms units it takes to start the GO mode
1830 * @client_timeout: Time in 10 ms units it takes to start the client mode
1832 void p2p_set_config_timeout(struct p2p_data
*p2p
, u8 go_timeout
,
1835 void p2p_increase_search_delay(struct p2p_data
*p2p
, unsigned int delay
);
1837 int p2p_set_wfd_ie_beacon(struct p2p_data
*p2p
, struct wpabuf
*ie
);
1838 int p2p_set_wfd_ie_probe_req(struct p2p_data
*p2p
, struct wpabuf
*ie
);
1839 int p2p_set_wfd_ie_probe_resp(struct p2p_data
*p2p
, struct wpabuf
*ie
);
1840 int p2p_set_wfd_ie_assoc_req(struct p2p_data
*p2p
, struct wpabuf
*ie
);
1841 int p2p_set_wfd_ie_invitation(struct p2p_data
*p2p
, struct wpabuf
*ie
);
1842 int p2p_set_wfd_ie_prov_disc_req(struct p2p_data
*p2p
, struct wpabuf
*ie
);
1843 int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data
*p2p
, struct wpabuf
*ie
);
1844 int p2p_set_wfd_ie_go_neg(struct p2p_data
*p2p
, struct wpabuf
*ie
);
1845 int p2p_set_wfd_dev_info(struct p2p_data
*p2p
, const struct wpabuf
*elem
);
1846 int p2p_set_wfd_assoc_bssid(struct p2p_data
*p2p
, const struct wpabuf
*elem
);
1847 int p2p_set_wfd_coupled_sink_info(struct p2p_data
*p2p
,
1848 const struct wpabuf
*elem
);
1849 struct wpabuf
* wifi_display_encaps(struct wpabuf
*subelems
);
1852 * p2p_set_disc_int - Set min/max discoverable interval for p2p_find
1853 * @p2p: P2P module context from p2p_init()
1854 * @min_disc_int: minDiscoverableInterval (in units of 100 TU); default 1
1855 * @max_disc_int: maxDiscoverableInterval (in units of 100 TU); default 3
1856 * @max_disc_tu: Maximum number of TUs (1.024 ms) for discoverable interval; or
1858 * Returns: 0 on success, or -1 on failure
1860 * This function can be used to configure minDiscoverableInterval and
1861 * maxDiscoverableInterval parameters for the Listen state during device
1862 * discovery (p2p_find). A random number of 100 TU units is picked for each
1863 * Listen state iteration from [min_disc_int,max_disc_int] range.
1865 * max_disc_tu can be used to futher limit the discoverable duration. However,
1866 * it should be noted that use of this parameter is not recommended since it
1867 * would not be compliant with the P2P specification.
1869 int p2p_set_disc_int(struct p2p_data
*p2p
, int min_disc_int
, int max_disc_int
,
1873 * p2p_get_state_txt - Get current P2P state for debug purposes
1874 * @p2p: P2P module context from p2p_init()
1875 * Returns: Name of the current P2P module state
1877 * It should be noted that the P2P module state names are internal information
1878 * and subject to change at any point, i.e., this information should be used
1879 * mainly for debugging purposes.
1881 const char * p2p_get_state_txt(struct p2p_data
*p2p
);