2 * Wi-Fi Direct - P2P module
3 * Copyright (c) 2009-2010, Atheros Communications
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
13 * P2P_MAX_REG_CLASSES - Maximum number of regulatory classes
15 #define P2P_MAX_REG_CLASSES 10
18 * P2P_MAX_REG_CLASS_CHANNELS - Maximum number of channels per regulatory class
20 #define P2P_MAX_REG_CLASS_CHANNELS 20
23 * struct p2p_channels - List of supported channels
27 * struct p2p_reg_class - Supported regulatory class
29 struct p2p_reg_class
{
31 * reg_class - Regulatory class (IEEE 802.11-2007, Annex J)
36 * channel - Supported channels
38 u8 channel
[P2P_MAX_REG_CLASS_CHANNELS
];
41 * channels - Number of channel entries in use
44 } reg_class
[P2P_MAX_REG_CLASSES
];
47 * reg_classes - Number of reg_class entries in use
53 WPS_NOT_READY
, WPS_PIN_DISPLAY
, WPS_PIN_KEYPAD
, WPS_PBC
57 * struct p2p_go_neg_results - P2P Group Owner Negotiation results
59 struct p2p_go_neg_results
{
61 * status - Negotiation result (Status Code)
63 * 0 (P2P_SC_SUCCESS) indicates success. Non-zero values indicate
69 * role_go - Whether local end is Group Owner
74 * freq - Frequency of the group operational channel in MHz
79 * ssid - SSID of the group
84 * ssid_len - Length of SSID in octets
89 * passphrase - WPA2-Personal passphrase for the group (GO only)
94 * peer_device_addr - P2P Device Address of the peer
96 u8 peer_device_addr
[ETH_ALEN
];
99 * peer_interface_addr - P2P Interface Address of the peer
101 u8 peer_interface_addr
[ETH_ALEN
];
104 * wps_method - WPS method to be used during provisioning
106 enum p2p_wps_method wps_method
;
108 #define P2P_MAX_CHANNELS 50
111 * freq_list - Zero-terminated list of possible operational channels
113 int freq_list
[P2P_MAX_CHANNELS
];
116 * persistent_group - Whether the group should be made persistent
118 * 1 = persistent group without persistent reconnect
119 * 2 = persistent group with persistent reconnect
121 int persistent_group
;
124 * peer_config_timeout - Peer configuration timeout (in 10 msec units)
126 unsigned int peer_config_timeout
;
135 P2P_SCAN_SOCIAL_PLUS_ONE
138 #define P2P_MAX_WPS_VENDOR_EXT 10
141 * struct p2p_peer_info - P2P peer information
143 struct p2p_peer_info
{
145 * p2p_device_addr - P2P Device Address of the peer
147 u8 p2p_device_addr
[ETH_ALEN
];
150 * pri_dev_type - Primary Device Type
155 * device_name - Device Name (0..32 octets encoded in UTF-8)
157 char device_name
[33];
160 * manufacturer - Manufacturer (0..64 octets encoded in UTF-8)
162 char manufacturer
[65];
165 * model_name - Model Name (0..32 octets encoded in UTF-8)
170 * model_number - Model Number (0..32 octets encoded in UTF-8)
172 char model_number
[33];
175 * serial_number - Serial Number (0..32 octets encoded in UTF-8)
177 char serial_number
[33];
180 * level - Signal level
185 * config_methods - WPS Configuration Methods
190 * dev_capab - Device Capabilities
195 * group_capab - Group Capabilities
200 * wps_sec_dev_type_list - WPS secondary device type list
202 * This list includes from 0 to 16 Secondary Device Types as indicated
203 * by wps_sec_dev_type_list_len (8 * number of types).
205 u8 wps_sec_dev_type_list
[128];
208 * wps_sec_dev_type_list_len - Length of secondary device type list
210 size_t wps_sec_dev_type_list_len
;
212 struct wpabuf
*wps_vendor_ext
[P2P_MAX_WPS_VENDOR_EXT
];
215 enum p2p_prov_disc_status
{
216 P2P_PROV_DISC_SUCCESS
,
217 P2P_PROV_DISC_TIMEOUT
,
218 P2P_PROV_DISC_REJECTED
,
222 * struct p2p_config - P2P configuration
224 * This configuration is provided to the P2P module during initialization with
229 * country - Country code to use in P2P operations
234 * reg_class - Regulatory class for own listen channel
239 * channel - Own listen channel
244 * Regulatory class for own operational channel
249 * op_channel - Own operational channel
254 * cfg_op_channel - Whether op_channel is hardcoded in configuration
259 * channels - Own supported regulatory classes and channels
261 * List of supposerted channels per regulatory class. The regulatory
262 * classes are defined in IEEE Std 802.11-2007 Annex J and the
263 * numbering of the clases depends on the configured country code.
265 struct p2p_channels channels
;
268 * pri_dev_type - Primary Device Type (see WPS)
273 * P2P_SEC_DEVICE_TYPES - Maximum number of secondary device types
275 #define P2P_SEC_DEVICE_TYPES 5
278 * sec_dev_type - Optional secondary device types
280 u8 sec_dev_type
[P2P_SEC_DEVICE_TYPES
][8];
283 * num_sec_dev_types - Number of sec_dev_type entries
285 size_t num_sec_dev_types
;
288 * dev_addr - P2P Device Address
290 u8 dev_addr
[ETH_ALEN
];
293 * dev_name - Device Name
306 * concurrent_operations - Whether concurrent operations are supported
308 int concurrent_operations
;
311 * max_peers - Maximum number of discovered peers to remember
313 * If more peers are discovered, older entries will be removed to make
314 * room for the new ones.
319 * p2p_intra_bss - Intra BSS communication is supported
324 * ssid_postfix - Postfix data to add to the SSID
326 * This data will be added to the end of the SSID after the
327 * DIRECT-<random two octets> prefix.
329 u8 ssid_postfix
[32 - 9];
332 * ssid_postfix_len - Length of the ssid_postfix data
334 size_t ssid_postfix_len
;
337 * msg_ctx - Context to use with wpa_msg() calls
342 * cb_ctx - Context to use with callback functions
347 /* Callbacks to request lower layer driver operations */
350 * p2p_scan - Request a P2P scan/search
351 * @ctx: Callback context from cb_ctx
353 * @freq: Specific frequency (MHz) to scan or 0 for no restriction
354 * @num_req_dev_types: Number of requested device types
355 * @req_dev_types: Array containing requested device types
356 * @dev_id: Device ID to search for or %NULL to find all devices
357 * Returns: 0 on success, -1 on failure
359 * This callback function is used to request a P2P scan or search
360 * operation to be completed. Type type argument specifies which type
361 * of scan is to be done. @P2P_SCAN_SOCIAL indicates that only the
362 * social channels (1, 6, 11) should be scanned. @P2P_SCAN_FULL
363 * indicates that all channels are to be scanned. @P2P_SCAN_SPECIFIC
364 * request a scan of a single channel specified by freq.
365 * @P2P_SCAN_SOCIAL_PLUS_ONE request scan of all the social channels
366 * plus one extra channel specified by freq.
368 * The full scan is used for the initial scan to find group owners from
369 * all. The other types are used during search phase scan of the social
370 * channels (with potential variation if the Listen channel of the
371 * target peer is known or if other channels are scanned in steps).
373 * The scan results are returned after this call by calling
374 * p2p_scan_res_handler() for each scan result that has a P2P IE and
375 * then calling p2p_scan_res_handled() to indicate that all scan
376 * results have been indicated.
378 int (*p2p_scan
)(void *ctx
, enum p2p_scan_type type
, int freq
,
379 unsigned int num_req_dev_types
,
380 const u8
*req_dev_types
, const u8
*dev_id
);
383 * send_probe_resp - Transmit a Probe Response frame
384 * @ctx: Callback context from cb_ctx
385 * @buf: Probe Response frame (including the header and body)
386 * Returns: 0 on success, -1 on failure
388 * This function is used to reply to Probe Request frames that were
389 * indicated with a call to p2p_probe_req_rx(). The response is to be
390 * sent on the same channel or to be dropped if the driver is not
391 * anymore listening to Probe Request frames.
393 * Alternatively, the responsibility for building the Probe Response
394 * frames in Listen state may be in another system component in which
395 * case this function need to be implemented (i.e., the function
396 * pointer can be %NULL). The WPS and P2P IEs to be added for Probe
397 * Response frames in such a case are available from the
398 * start_listen() callback. It should be noted that the received Probe
399 * Request frames must be indicated by calling p2p_probe_req_rx() even
400 * if this send_probe_resp() is not used.
402 int (*send_probe_resp
)(void *ctx
, const struct wpabuf
*buf
);
405 * send_action - Transmit an Action frame
406 * @ctx: Callback context from cb_ctx
407 * @freq: Frequency in MHz for the channel on which to transmit
408 * @dst: Destination MAC address (Address 1)
409 * @src: Source MAC address (Address 2)
410 * @bssid: BSSID (Address 3)
411 * @buf: Frame body (starting from Category field)
412 * @len: Length of buf in octets
413 * @wait_time: How many msec to wait for a response frame
414 * Returns: 0 on success, -1 on failure
416 * The Action frame may not be transmitted immediately and the status
417 * of the transmission must be reported by calling
418 * p2p_send_action_cb() once the frame has either been transmitted or
419 * it has been dropped due to excessive retries or other failure to
422 int (*send_action
)(void *ctx
, unsigned int freq
, const u8
*dst
,
423 const u8
*src
, const u8
*bssid
, const u8
*buf
,
424 size_t len
, unsigned int wait_time
);
427 * send_action_done - Notify that Action frame sequence was completed
428 * @ctx: Callback context from cb_ctx
430 * This function is called when the Action frame sequence that was
431 * started with send_action() has been completed, i.e., when there is
432 * no need to wait for a response from the destination peer anymore.
434 void (*send_action_done
)(void *ctx
);
437 * start_listen - Start Listen state
438 * @ctx: Callback context from cb_ctx
439 * @freq: Frequency of the listen channel in MHz
440 * @duration: Duration for the Listen state in milliseconds
441 * @probe_resp_ie: IE(s) to be added to Probe Response frames
442 * Returns: 0 on success, -1 on failure
444 * This Listen state may not start immediately since the driver may
445 * have other pending operations to complete first. Once the Listen
446 * state has started, p2p_listen_cb() must be called to notify the P2P
447 * module. Once the Listen state is stopped, p2p_listen_end() must be
448 * called to notify the P2P module that the driver is not in the Listen
451 * If the send_probe_resp() is not used for generating the response,
452 * the IEs from probe_resp_ie need to be added to the end of the Probe
453 * Response frame body. If send_probe_resp() is used, the probe_resp_ie
454 * information can be ignored.
456 int (*start_listen
)(void *ctx
, unsigned int freq
,
457 unsigned int duration
,
458 const struct wpabuf
*probe_resp_ie
);
460 * stop_listen - Stop Listen state
461 * @ctx: Callback context from cb_ctx
463 * This callback can be used to stop a Listen state operation that was
464 * previously requested with start_listen().
466 void (*stop_listen
)(void *ctx
);
469 * get_noa - Get current Notice of Absence attribute payload
470 * @ctx: Callback context from cb_ctx
471 * @interface_addr: P2P Interface Address of the GO
472 * @buf: Buffer for returning NoA
473 * @buf_len: Buffer length in octets
474 * Returns: Number of octets used in buf, 0 to indicate no NoA is being
475 * advertized, or -1 on failure
477 * This function is used to fetch the current Notice of Absence
478 * attribute value from GO.
480 int (*get_noa
)(void *ctx
, const u8
*interface_addr
, u8
*buf
,
483 /* Callbacks to notify events to upper layer management entity */
486 * dev_found - Notification of a found P2P Device
487 * @ctx: Callback context from cb_ctx
488 * @addr: Source address of the message triggering this notification
489 * @info: P2P peer information
490 * @new_device: Inform if the peer is newly found
492 * This callback is used to notify that a new P2P Device has been
493 * found. This may happen, e.g., during Search state based on scan
494 * results or during Listen state based on receive Probe Request and
495 * Group Owner Negotiation Request.
497 void (*dev_found
)(void *ctx
, const u8
*addr
,
498 const struct p2p_peer_info
*info
,
502 * dev_lost - Notification of a lost P2P Device
503 * @ctx: Callback context from cb_ctx
504 * @dev_addr: P2P Device Address of the lost P2P Device
506 * This callback is used to notify that a P2P Device has been deleted.
508 void (*dev_lost
)(void *ctx
, const u8
*dev_addr
);
511 * go_neg_req_rx - Notification of a receive GO Negotiation Request
512 * @ctx: Callback context from cb_ctx
513 * @src: Source address of the message triggering this notification
514 * @dev_passwd_id: WPS Device Password ID
516 * This callback is used to notify that a P2P Device is requesting
517 * group owner negotiation with us, but we do not have all the
518 * necessary information to start GO Negotiation. This indicates that
519 * the local user has not authorized the connection yet by providing a
520 * PIN or PBC button press. This information can be provided with a
521 * call to p2p_connect().
523 void (*go_neg_req_rx
)(void *ctx
, const u8
*src
, u16 dev_passwd_id
);
526 * go_neg_completed - Notification of GO Negotiation results
527 * @ctx: Callback context from cb_ctx
528 * @res: GO Negotiation results
530 * This callback is used to notify that Group Owner Negotiation has
531 * been completed. Non-zero struct p2p_go_neg_results::status indicates
532 * failed negotiation. In case of success, this function is responsible
533 * for creating a new group interface (or using the existing interface
534 * depending on driver features), setting up the group interface in
535 * proper mode based on struct p2p_go_neg_results::role_go and
536 * initializing WPS provisioning either as a Registrar (if GO) or as an
537 * Enrollee. Successful WPS provisioning must be indicated by calling
538 * p2p_wps_success_cb(). The callee is responsible for timing out group
539 * formation if WPS provisioning cannot be completed successfully
542 void (*go_neg_completed
)(void *ctx
, struct p2p_go_neg_results
*res
);
545 * sd_request - Callback on Service Discovery Request
546 * @ctx: Callback context from cb_ctx
547 * @freq: Frequency (in MHz) of the channel
548 * @sa: Source address of the request
549 * @dialog_token: Dialog token
550 * @update_indic: Service Update Indicator from the source of request
551 * @tlvs: P2P Service Request TLV(s)
552 * @tlvs_len: Length of tlvs buffer in octets
554 * This callback is used to indicate reception of a service discovery
555 * request. Response to the query must be indicated by calling
556 * p2p_sd_response() with the context information from the arguments to
557 * this callback function.
559 * This callback handler can be set to %NULL to indicate that service
560 * discovery is not supported.
562 void (*sd_request
)(void *ctx
, int freq
, const u8
*sa
, u8 dialog_token
,
563 u16 update_indic
, const u8
*tlvs
, size_t tlvs_len
);
566 * sd_response - Callback on Service Discovery Response
567 * @ctx: Callback context from cb_ctx
568 * @sa: Source address of the request
569 * @update_indic: Service Update Indicator from the source of response
570 * @tlvs: P2P Service Response TLV(s)
571 * @tlvs_len: Length of tlvs buffer in octets
573 * This callback is used to indicate reception of a service discovery
574 * response. This callback handler can be set to %NULL if no service
575 * discovery requests are used. The information provided with this call
576 * is replies to the queries scheduled with p2p_sd_request().
578 void (*sd_response
)(void *ctx
, const u8
*sa
, u16 update_indic
,
579 const u8
*tlvs
, size_t tlvs_len
);
582 * prov_disc_req - Callback on Provisiong Discovery Request
583 * @ctx: Callback context from cb_ctx
584 * @peer: Source address of the request
585 * @config_methods: Requested WPS Config Method
586 * @dev_addr: P2P Device Address of the found P2P Device
587 * @pri_dev_type: Primary Device Type
588 * @dev_name: Device Name
589 * @supp_config_methods: Supported configuration Methods
590 * @dev_capab: Device Capabilities
591 * @group_capab: Group Capabilities
592 * @group_id: P2P Group ID (or %NULL if not included)
593 * @group_id_len: Length of P2P Group ID
595 * This callback is used to indicate reception of a Provision Discovery
596 * Request frame that the P2P module accepted.
598 void (*prov_disc_req
)(void *ctx
, const u8
*peer
, u16 config_methods
,
599 const u8
*dev_addr
, const u8
*pri_dev_type
,
600 const char *dev_name
, u16 supp_config_methods
,
601 u8 dev_capab
, u8 group_capab
,
602 const u8
*group_id
, size_t group_id_len
);
605 * prov_disc_resp - Callback on Provisiong Discovery Response
606 * @ctx: Callback context from cb_ctx
607 * @peer: Source address of the response
608 * @config_methods: Value from p2p_prov_disc_req() or 0 on failure
610 * This callback is used to indicate reception of a Provision Discovery
611 * Response frame for a pending request scheduled with
612 * p2p_prov_disc_req(). This callback handler can be set to %NULL if
613 * provision discovery is not used.
615 void (*prov_disc_resp
)(void *ctx
, const u8
*peer
, u16 config_methods
);
618 * prov_disc_fail - Callback on Provision Discovery failure
619 * @ctx: Callback context from cb_ctx
620 * @peer: Source address of the response
621 * @status: Cause of failure, will not be %P2P_PROV_DISC_SUCCESS
623 * This callback is used to indicate either a failure or no response
624 * to an earlier provision discovery request.
626 * This callback handler can be set to %NULL if provision discovery
627 * is not used or failures do not need to be indicated.
629 void (*prov_disc_fail
)(void *ctx
, const u8
*peer
,
630 enum p2p_prov_disc_status status
);
633 * invitation_process - Optional callback for processing Invitations
634 * @ctx: Callback context from cb_ctx
635 * @sa: Source address of the Invitation Request
636 * @bssid: P2P Group BSSID from the request or %NULL if not included
637 * @go_dev_addr: GO Device Address from P2P Group ID
638 * @ssid: SSID from P2P Group ID
639 * @ssid_len: Length of ssid buffer in octets
640 * @go: Variable for returning whether the local end is GO in the group
641 * @group_bssid: Buffer for returning P2P Group BSSID (if local end GO)
642 * @force_freq: Variable for returning forced frequency for the group
643 * @persistent_group: Whether this is an invitation to reinvoke a
644 * persistent group (instead of invitation to join an active
646 * Returns: Status code (P2P_SC_*)
648 * This optional callback can be used to implement persistent reconnect
649 * by allowing automatic restarting of persistent groups without user
650 * interaction. If this callback is not implemented (i.e., is %NULL),
651 * the received Invitation Request frames are replied with
652 * %P2P_SC_REQ_RECEIVED status and indicated to upper layer with the
653 * invitation_result() callback.
655 * If the requested parameters are acceptable and the group is known,
656 * %P2P_SC_SUCCESS may be returned. If the requested group is unknown,
657 * %P2P_SC_FAIL_UNKNOWN_GROUP should be returned. %P2P_SC_REQ_RECEIVED
658 * can be returned if there is not enough data to provide immediate
659 * response, i.e., if some sort of user interaction is needed. The
660 * invitation_received() callback will be called in that case
661 * immediately after this call.
663 u8 (*invitation_process
)(void *ctx
, const u8
*sa
, const u8
*bssid
,
664 const u8
*go_dev_addr
, const u8
*ssid
,
665 size_t ssid_len
, int *go
, u8
*group_bssid
,
666 int *force_freq
, int persistent_group
);
669 * invitation_received - Callback on Invitation Request RX
670 * @ctx: Callback context from cb_ctx
671 * @sa: Source address of the Invitation Request
672 * @bssid: P2P Group BSSID or %NULL if not received
673 * @ssid: SSID of the group
674 * @ssid_len: Length of ssid in octets
675 * @go_dev_addr: GO Device Address
676 * @status: Response Status
677 * @op_freq: Operational frequency for the group
679 * This callback is used to indicate sending of an Invitation Response
680 * for a received Invitation Request. If status == 0 (success), the
681 * upper layer code is responsible for starting the group. status == 1
682 * indicates need to get user authorization for the group. Other status
683 * values indicate that the invitation request was rejected.
685 void (*invitation_received
)(void *ctx
, const u8
*sa
, const u8
*bssid
,
686 const u8
*ssid
, size_t ssid_len
,
687 const u8
*go_dev_addr
, u8 status
,
691 * invitation_result - Callback on Invitation result
692 * @ctx: Callback context from cb_ctx
693 * @status: Negotiation result (Status Code)
694 * @bssid: P2P Group BSSID or %NULL if not received
696 * This callback is used to indicate result of an Invitation procedure
697 * started with a call to p2p_invite(). The indicated status code is
698 * the value received from the peer in Invitation Response with 0
699 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a
700 * local failure in transmitting the Invitation Request.
702 void (*invitation_result
)(void *ctx
, int status
, const u8
*bssid
);
705 * go_connected - Check whether we are connected to a GO
706 * @ctx: Callback context from cb_ctx
707 * @dev_addr: P2P Device Address of a GO
708 * Returns: 1 if we are connected as a P2P client to the specified GO
711 int (*go_connected
)(void *ctx
, const u8
*dev_addr
);
715 /* P2P module initialization/deinitialization */
718 * p2p_init - Initialize P2P module
719 * @cfg: P2P module configuration
720 * Returns: Pointer to private data or %NULL on failure
722 * This function is used to initialize global P2P module context (one per
723 * device). The P2P module will keep a copy of the configuration data, so the
724 * caller does not need to maintain this structure. However, the callback
725 * functions and the context parameters to them must be kept available until
726 * the P2P module is deinitialized with p2p_deinit().
728 struct p2p_data
* p2p_init(const struct p2p_config
*cfg
);
731 * p2p_deinit - Deinitialize P2P module
732 * @p2p: P2P module context from p2p_init()
734 void p2p_deinit(struct p2p_data
*p2p
);
737 * p2p_flush - Flush P2P module state
738 * @p2p: P2P module context from p2p_init()
740 * This command removes the P2P module state like peer device entries.
742 void p2p_flush(struct p2p_data
*p2p
);
745 * p2p_unauthorize - Unauthorize the specified peer device
746 * @p2p: P2P module context from p2p_init()
747 * @addr: P2P peer entry to be unauthorized
748 * Returns: 0 on success, -1 on failure
750 * This command removes any connection authorization from the specified P2P
751 * peer device address. This can be used, e.g., to cancel effect of a previous
752 * p2p_authorize() or p2p_connect() call that has not yet resulted in completed
755 int p2p_unauthorize(struct p2p_data
*p2p
, const u8
*addr
);
758 * p2p_set_dev_name - Set device name
759 * @p2p: P2P module context from p2p_init()
760 * Returns: 0 on success, -1 on failure
762 * This function can be used to update the P2P module configuration with
763 * information that was not available at the time of the p2p_init() call.
765 int p2p_set_dev_name(struct p2p_data
*p2p
, const char *dev_name
);
767 int p2p_set_manufacturer(struct p2p_data
*p2p
, const char *manufacturer
);
768 int p2p_set_model_name(struct p2p_data
*p2p
, const char *model_name
);
769 int p2p_set_model_number(struct p2p_data
*p2p
, const char *model_number
);
770 int p2p_set_serial_number(struct p2p_data
*p2p
, const char *serial_number
);
772 void p2p_set_config_methods(struct p2p_data
*p2p
, u16 config_methods
);
773 void p2p_set_uuid(struct p2p_data
*p2p
, const u8
*uuid
);
776 * p2p_set_pri_dev_type - Set primary device type
777 * @p2p: P2P module context from p2p_init()
778 * Returns: 0 on success, -1 on failure
780 * This function can be used to update the P2P module configuration with
781 * information that was not available at the time of the p2p_init() call.
783 int p2p_set_pri_dev_type(struct p2p_data
*p2p
, const u8
*pri_dev_type
);
786 * p2p_set_sec_dev_types - Set secondary device types
787 * @p2p: P2P module context from p2p_init()
788 * Returns: 0 on success, -1 on failure
790 * This function can be used to update the P2P module configuration with
791 * information that was not available at the time of the p2p_init() call.
793 int p2p_set_sec_dev_types(struct p2p_data
*p2p
, const u8 dev_types
[][8],
794 size_t num_dev_types
);
796 int p2p_set_country(struct p2p_data
*p2p
, const char *country
);
799 /* Commands from upper layer management entity */
801 enum p2p_discovery_type
{
802 P2P_FIND_START_WITH_FULL
,
803 P2P_FIND_ONLY_SOCIAL
,
808 * p2p_find - Start P2P Find (Device Discovery)
809 * @p2p: P2P module context from p2p_init()
810 * @timeout: Timeout for find operation in seconds or 0 for no timeout
811 * @type: Device Discovery type
812 * @num_req_dev_types: Number of requested device types
813 * @req_dev_types: Requested device types array, must be an array
814 * containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no
815 * requested device types.
816 * @dev_id: Device ID to search for or %NULL to find all devices
817 * Returns: 0 on success, -1 on failure
819 int p2p_find(struct p2p_data
*p2p
, unsigned int timeout
,
820 enum p2p_discovery_type type
,
821 unsigned int num_req_dev_types
, const u8
*req_dev_types
,
825 * p2p_stop_find - Stop P2P Find (Device Discovery)
826 * @p2p: P2P module context from p2p_init()
828 void p2p_stop_find(struct p2p_data
*p2p
);
831 * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq
832 * @p2p: P2P module context from p2p_init()
833 * @freq: Frequency in MHz for next operation
835 * This is like p2p_stop_find(), but Listen state is not stopped if we are
836 * already on the same frequency.
838 void p2p_stop_find_for_freq(struct p2p_data
*p2p
, int freq
);
841 * p2p_listen - Start P2P Listen state for specified duration
842 * @p2p: P2P module context from p2p_init()
843 * @timeout: Listen state duration in milliseconds
844 * Returns: 0 on success, -1 on failure
846 * This function can be used to request the P2P module to keep the device
847 * discoverable on the listen channel for an extended set of time. At least in
848 * its current form, this is mainly used for testing purposes and may not be of
849 * much use for normal P2P operations.
851 int p2p_listen(struct p2p_data
*p2p
, unsigned int timeout
);
854 * p2p_connect - Start P2P group formation (GO negotiation)
855 * @p2p: P2P module context from p2p_init()
856 * @peer_addr: MAC address of the peer P2P client
857 * @wps_method: WPS method to be used in provisioning
858 * @go_intent: Local GO intent value (1..15)
859 * @own_interface_addr: Intended interface address to use with the group
860 * @force_freq: The only allowed channel frequency in MHz or 0
861 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
862 * persistent group without persistent reconnect, 2 = persistent group with
863 * persistent reconnect)
864 * Returns: 0 on success, -1 on failure
866 int p2p_connect(struct p2p_data
*p2p
, const u8
*peer_addr
,
867 enum p2p_wps_method wps_method
,
868 int go_intent
, const u8
*own_interface_addr
,
869 unsigned int force_freq
, int persistent_group
);
872 * p2p_authorize - Authorize P2P group formation (GO negotiation)
873 * @p2p: P2P module context from p2p_init()
874 * @peer_addr: MAC address of the peer P2P client
875 * @wps_method: WPS method to be used in provisioning
876 * @go_intent: Local GO intent value (1..15)
877 * @own_interface_addr: Intended interface address to use with the group
878 * @force_freq: The only allowed channel frequency in MHz or 0
879 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
880 * persistent group without persistent reconnect, 2 = persistent group with
881 * persistent reconnect)
882 * Returns: 0 on success, -1 on failure
884 * This is like p2p_connect(), but the actual group negotiation is not
885 * initiated automatically, i.e., the other end is expected to do that.
887 int p2p_authorize(struct p2p_data
*p2p
, const u8
*peer_addr
,
888 enum p2p_wps_method wps_method
,
889 int go_intent
, const u8
*own_interface_addr
,
890 unsigned int force_freq
, int persistent_group
);
893 * p2p_reject - Reject peer device (explicitly block connection attempts)
894 * @p2p: P2P module context from p2p_init()
895 * @peer_addr: MAC address of the peer P2P client
896 * Returns: 0 on success, -1 on failure
898 int p2p_reject(struct p2p_data
*p2p
, const u8
*peer_addr
);
901 * p2p_prov_disc_req - Send Provision Discovery Request
902 * @p2p: P2P module context from p2p_init()
903 * @peer_addr: MAC address of the peer P2P client
904 * @config_methods: WPS Config Methods value (only one bit set)
905 * @join: Whether this is used by a client joining an active group
906 * @force_freq: Forced TX frequency for the frame (mainly for the join case)
907 * Returns: 0 on success, -1 on failure
909 * This function can be used to request a discovered P2P peer to display a PIN
910 * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us
911 * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame
912 * is transmitted once immediately and if no response is received, the frame
913 * will be sent again whenever the target device is discovered during device
914 * dsicovery (start with a p2p_find() call). Response from the peer is
915 * indicated with the p2p_config::prov_disc_resp() callback.
917 int p2p_prov_disc_req(struct p2p_data
*p2p
, const u8
*peer_addr
,
918 u16 config_methods
, int join
, int force_freq
);
921 * p2p_sd_request - Schedule a service discovery query
922 * @p2p: P2P module context from p2p_init()
923 * @dst: Destination peer or %NULL to apply for all peers
924 * @tlvs: P2P Service Query TLV(s)
925 * Returns: Reference to the query or %NULL on failure
927 * Response to the query is indicated with the p2p_config::sd_response()
930 void * p2p_sd_request(struct p2p_data
*p2p
, const u8
*dst
,
931 const struct wpabuf
*tlvs
);
934 * p2p_sd_cancel_request - Cancel a pending service discovery query
935 * @p2p: P2P module context from p2p_init()
936 * @req: Query reference from p2p_sd_request()
937 * Returns: 0 if request for cancelled; -1 if not found
939 int p2p_sd_cancel_request(struct p2p_data
*p2p
, void *req
);
942 * p2p_sd_response - Send response to a service discovery query
943 * @p2p: P2P module context from p2p_init()
944 * @freq: Frequency from p2p_config::sd_request() callback
945 * @dst: Destination address from p2p_config::sd_request() callback
946 * @dialog_token: Dialog token from p2p_config::sd_request() callback
947 * @resp_tlvs: P2P Service Response TLV(s)
949 * This function is called as a response to the request indicated with
950 * p2p_config::sd_request() callback.
952 void p2p_sd_response(struct p2p_data
*p2p
, int freq
, const u8
*dst
,
953 u8 dialog_token
, const struct wpabuf
*resp_tlvs
);
956 * p2p_sd_service_update - Indicate a change in local services
957 * @p2p: P2P module context from p2p_init()
959 * This function needs to be called whenever there is a change in availability
960 * of the local services. This will increment the Service Update Indicator
961 * value which will be used in SD Request and Response frames.
963 void p2p_sd_service_update(struct p2p_data
*p2p
);
966 enum p2p_invite_role
{
968 P2P_INVITE_ROLE_ACTIVE_GO
,
969 P2P_INVITE_ROLE_CLIENT
973 * p2p_invite - Invite a P2P Device into a group
974 * @p2p: P2P module context from p2p_init()
975 * @peer: Device Address of the peer P2P Device
976 * @role: Local role in the group
977 * @bssid: Group BSSID or %NULL if not known
979 * @ssid_len: Length of ssid in octets
980 * @force_freq: The only allowed channel frequency in MHz or 0
981 * @go_dev_addr: Forced GO Device Address or %NULL if none
982 * @persistent_group: Whether this is to reinvoke a persistent group
983 * Returns: 0 on success, -1 on failure
985 int p2p_invite(struct p2p_data
*p2p
, const u8
*peer
, enum p2p_invite_role role
,
986 const u8
*bssid
, const u8
*ssid
, size_t ssid_len
,
987 unsigned int force_freq
, const u8
*go_dev_addr
,
988 int persistent_group
);
991 * p2p_presence_req - Request GO presence
992 * @p2p: P2P module context from p2p_init()
993 * @go_interface_addr: GO P2P Interface Address
994 * @own_interface_addr: Own P2P Interface Address for this group
995 * @freq: Group operating frequence (in MHz)
996 * @duration1: Preferred presence duration in microseconds
997 * @interval1: Preferred presence interval in microseconds
998 * @duration2: Acceptable presence duration in microseconds
999 * @interval2: Acceptable presence interval in microseconds
1000 * Returns: 0 on success, -1 on failure
1002 * If both duration and interval values are zero, the parameter pair is not
1003 * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0).
1005 int p2p_presence_req(struct p2p_data
*p2p
, const u8
*go_interface_addr
,
1006 const u8
*own_interface_addr
, unsigned int freq
,
1007 u32 duration1
, u32 interval1
, u32 duration2
,
1011 * p2p_ext_listen - Set Extended Listen Timing
1012 * @p2p: P2P module context from p2p_init()
1013 * @freq: Group operating frequence (in MHz)
1014 * @period: Availability period in milliseconds (1-65535; 0 to disable)
1015 * @interval: Availability interval in milliseconds (1-65535; 0 to disable)
1016 * Returns: 0 on success, -1 on failure
1018 * This function can be used to enable or disable (period = interval = 0)
1019 * Extended Listen Timing. When enabled, the P2P Device will become
1020 * discoverable (go into Listen State) every @interval milliseconds for at
1021 * least @period milliseconds.
1023 int p2p_ext_listen(struct p2p_data
*p2p
, unsigned int period
,
1024 unsigned int interval
);
1026 /* Event notifications from upper layer management operations */
1029 * p2p_wps_success_cb - Report successfully completed WPS provisioning
1030 * @p2p: P2P module context from p2p_init()
1031 * @mac_addr: Peer address
1033 * This function is used to report successfully completed WPS provisioning
1034 * during group formation in both GO/Registrar and client/Enrollee roles.
1036 void p2p_wps_success_cb(struct p2p_data
*p2p
, const u8
*mac_addr
);
1039 * p2p_group_formation_failed - Report failed WPS provisioning
1040 * @p2p: P2P module context from p2p_init()
1042 * This function is used to report failed group formation. This can happen
1043 * either due to failed WPS provisioning or due to 15 second timeout during
1044 * the provisioning phase.
1046 void p2p_group_formation_failed(struct p2p_data
*p2p
);
1049 * p2p_get_provisioning_info - Get any stored provisioning info
1050 * @p2p: P2P module context from p2p_init()
1051 * @addr: Peer P2P Device Address
1052 * Returns: WPS provisioning information (WPS config method) or 0 if no
1053 * information is available
1055 * This function is used to retrieve stored WPS provisioning info for the given
1058 u16
p2p_get_provisioning_info(struct p2p_data
*p2p
, const u8
*addr
);
1061 * p2p_clear_provisioning_info - Clear any stored provisioning info
1062 * @p2p: P2P module context from p2p_init()
1063 * @iface_addr: Peer P2P Interface Address
1065 * This function is used to clear stored WPS provisioning info for the given
1068 void p2p_clear_provisioning_info(struct p2p_data
*p2p
, const u8
*iface_addr
);
1071 /* Event notifications from lower layer driver operations */
1074 * p2p_probe_req_rx - Report reception of a Probe Request frame
1075 * @p2p: P2P module context from p2p_init()
1076 * @addr: Source MAC address
1077 * @dst: Destination MAC address if available or %NULL
1078 * @bssid: BSSID if available or %NULL
1079 * @ie: Information elements from the Probe Request frame body
1080 * @ie_len: Length of ie buffer in octets
1081 * Returns: 0 to indicate the frame was not processed or 1 if it was
1083 int p2p_probe_req_rx(struct p2p_data
*p2p
, const u8
*addr
, const u8
*dst
,
1084 const u8
*bssid
, const u8
*ie
, size_t ie_len
);
1087 * p2p_rx_action - Report received Action frame
1088 * @p2p: P2P module context from p2p_init()
1089 * @da: Destination address of the received Action frame
1090 * @sa: Source address of the received Action frame
1091 * @bssid: Address 3 of the received Action frame
1092 * @category: Category of the received Action frame
1093 * @data: Action frame body after the Category field
1094 * @len: Length of the data buffer in octets
1095 * @freq: Frequency (in MHz) on which the frame was received
1097 void p2p_rx_action(struct p2p_data
*p2p
, const u8
*da
, const u8
*sa
,
1098 const u8
*bssid
, u8 category
,
1099 const u8
*data
, size_t len
, int freq
);
1102 * p2p_scan_res_handler - Indicate a P2P scan results
1103 * @p2p: P2P module context from p2p_init()
1104 * @bssid: BSSID of the scan result
1105 * @freq: Frequency of the channel on which the device was found in MHz
1106 * @level: Signal level (signal strength of the received Beacon/Probe Response
1108 * @ies: Pointer to IEs from the scan result
1109 * @ies_len: Length of the ies buffer
1110 * Returns: 0 to continue or 1 to stop scan result indication
1112 * This function is called to indicate a scan result entry with P2P IE from a
1113 * scan requested with struct p2p_config::p2p_scan(). This can be called during
1114 * the actual scan process (i.e., whenever a new device is found) or as a
1115 * sequence of calls after the full scan has been completed. The former option
1116 * can result in optimized operations, but may not be supported by all
1117 * driver/firmware designs. The ies buffer need to include at least the P2P IE,
1118 * but it is recommended to include all IEs received from the device. The
1119 * caller does not need to check that the IEs contain a P2P IE before calling
1120 * this function since frames will be filtered internally if needed.
1122 * This function will return 1 if it wants to stop scan result iteration (and
1123 * scan in general if it is still in progress). This is used to allow faster
1124 * start of a pending operation, e.g., to start a pending GO negotiation.
1126 int p2p_scan_res_handler(struct p2p_data
*p2p
, const u8
*bssid
, int freq
,
1127 int level
, const u8
*ies
, size_t ies_len
);
1130 * p2p_scan_res_handled - Indicate end of scan results
1131 * @p2p: P2P module context from p2p_init()
1133 * This function is called to indicate that all P2P scan results from a scan
1134 * have been reported with zero or more calls to p2p_scan_res_handler(). This
1135 * function must be called as a response to successful
1136 * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler()
1137 * calls stopped iteration.
1139 void p2p_scan_res_handled(struct p2p_data
*p2p
);
1141 enum p2p_send_action_result
{
1142 P2P_SEND_ACTION_SUCCESS
/* Frame was send and acknowledged */,
1143 P2P_SEND_ACTION_NO_ACK
/* Frame was sent, but not acknowledged */,
1144 P2P_SEND_ACTION_FAILED
/* Frame was not sent due to a failure */
1148 * p2p_send_action_cb - Notify TX status of an Action frame
1149 * @p2p: P2P module context from p2p_init()
1150 * @freq: Channel frequency in MHz
1151 * @dst: Destination MAC address (Address 1)
1152 * @src: Source MAC address (Address 2)
1153 * @bssid: BSSID (Address 3)
1154 * @result: Result of the transmission attempt
1156 * This function is used to indicate the result of an Action frame transmission
1157 * that was requested with struct p2p_config::send_action() callback.
1159 void p2p_send_action_cb(struct p2p_data
*p2p
, unsigned int freq
, const u8
*dst
,
1160 const u8
*src
, const u8
*bssid
,
1161 enum p2p_send_action_result result
);
1164 * p2p_listen_cb - Indicate the start of a requested Listen state
1165 * @p2p: P2P module context from p2p_init()
1166 * @freq: Listen channel frequency in MHz
1167 * @duration: Duration for the Listen state in milliseconds
1169 * This function is used to indicate that a Listen state requested with
1170 * struct p2p_config::start_listen() callback has started.
1172 void p2p_listen_cb(struct p2p_data
*p2p
, unsigned int freq
,
1173 unsigned int duration
);
1176 * p2p_listen_end - Indicate the end of a requested Listen state
1177 * @p2p: P2P module context from p2p_init()
1178 * @freq: Listen channel frequency in MHz
1179 * Returns: 0 if no operations were started, 1 if an operation was started
1181 * This function is used to indicate that a Listen state requested with
1182 * struct p2p_config::start_listen() callback has ended.
1184 int p2p_listen_end(struct p2p_data
*p2p
, unsigned int freq
);
1186 void p2p_deauth_notif(struct p2p_data
*p2p
, const u8
*bssid
, u16 reason_code
,
1187 const u8
*ie
, size_t ie_len
);
1189 void p2p_disassoc_notif(struct p2p_data
*p2p
, const u8
*bssid
, u16 reason_code
,
1190 const u8
*ie
, size_t ie_len
);
1193 /* Per-group P2P state for GO */
1198 * struct p2p_group_config - P2P group configuration
1200 * This configuration is provided to the P2P module during initialization of
1201 * the per-group information with p2p_group_init().
1203 struct p2p_group_config
{
1205 * persistent_group - Whether the group is persistent
1206 * 0 = not a persistent group
1207 * 1 = persistent group without persistent reconnect
1208 * 2 = persistent group with persistent reconnect
1210 int persistent_group
;
1213 * interface_addr - P2P Interface Address of the group
1215 u8 interface_addr
[ETH_ALEN
];
1218 * max_clients - Maximum number of clients in the group
1220 unsigned int max_clients
;
1223 * cb_ctx - Context to use with callback functions
1228 * ie_update - Notification of IE update
1229 * @ctx: Callback context from cb_ctx
1230 * @beacon_ies: P2P IE for Beacon frames or %NULL if no change
1231 * @proberesp_ies: P2P Ie for Probe Response frames
1233 * P2P module uses this callback function to notify whenever the P2P IE
1234 * in Beacon or Probe Response frames should be updated based on group
1237 * The callee is responsible for freeing the returned buffer(s) with
1240 void (*ie_update
)(void *ctx
, struct wpabuf
*beacon_ies
,
1241 struct wpabuf
*proberesp_ies
);
1244 * idle_update - Notification of changes in group idle state
1245 * @ctx: Callback context from cb_ctx
1246 * @idle: Whether the group is idle (no associated stations)
1248 void (*idle_update
)(void *ctx
, int idle
);
1252 * p2p_group_init - Initialize P2P group
1253 * @p2p: P2P module context from p2p_init()
1254 * @config: P2P group configuration (will be freed by p2p_group_deinit())
1255 * Returns: Pointer to private data or %NULL on failure
1257 * This function is used to initialize per-group P2P module context. Currently,
1258 * this is only used to manage GO functionality and P2P clients do not need to
1259 * create an instance of this per-group information.
1261 struct p2p_group
* p2p_group_init(struct p2p_data
*p2p
,
1262 struct p2p_group_config
*config
);
1265 * p2p_group_deinit - Deinitialize P2P group
1266 * @group: P2P group context from p2p_group_init()
1268 void p2p_group_deinit(struct p2p_group
*group
);
1271 * p2p_group_notif_assoc - Notification of P2P client association with GO
1272 * @group: P2P group context from p2p_group_init()
1273 * @addr: Interface address of the P2P client
1274 * @ie: IEs from the (Re)association Request frame
1275 * @len: Length of the ie buffer in octets
1276 * Returns: 0 on success, -1 on failure
1278 int p2p_group_notif_assoc(struct p2p_group
*group
, const u8
*addr
,
1279 const u8
*ie
, size_t len
);
1282 * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response
1283 * @group: P2P group context from p2p_group_init()
1284 * @status: Status value (P2P_SC_SUCCESS if association succeeded)
1285 * Returns: P2P IE for (Re)association Response or %NULL on failure
1287 * The caller is responsible for freeing the returned buffer with
1290 struct wpabuf
* p2p_group_assoc_resp_ie(struct p2p_group
*group
, u8 status
);
1293 * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO
1294 * @group: P2P group context from p2p_group_init()
1295 * @addr: Interface address of the P2P client
1297 void p2p_group_notif_disassoc(struct p2p_group
*group
, const u8
*addr
);
1300 * p2p_group_notif_formation_done - Notification of completed group formation
1301 * @group: P2P group context from p2p_group_init()
1303 void p2p_group_notif_formation_done(struct p2p_group
*group
);
1306 * p2p_group_notif_noa - Notification of NoA change
1307 * @group: P2P group context from p2p_group_init()
1308 * @noa: Notice of Absence attribute payload, %NULL if none
1309 * @noa_len: Length of noa buffer in octets
1310 * Returns: 0 on success, -1 on failure
1312 * Notify the P2P group management about a new NoA contents. This will be
1313 * inserted into the P2P IEs in Beacon and Probe Response frames with rest of
1314 * the group information.
1316 int p2p_group_notif_noa(struct p2p_group
*group
, const u8
*noa
,
1320 * p2p_group_match_dev_type - Match device types in group with requested type
1321 * @group: P2P group context from p2p_group_init()
1322 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1323 * Returns: 1 on match, 0 on mismatch
1325 * This function can be used to match the Requested Device Type attribute in
1326 * WPS IE with the device types of a group member for deciding whether a GO
1327 * should reply to a Probe Request frame. Match will be reported if the WPS IE
1328 * is not requested any specific device type.
1330 int p2p_group_match_dev_type(struct p2p_group
*group
, struct wpabuf
*wps
);
1333 * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id
1335 int p2p_group_match_dev_id(struct p2p_group
*group
, struct wpabuf
*p2p
);
1338 * p2p_group_go_discover - Send GO Discoverability Request to a group client
1339 * @group: P2P group context from p2p_group_init()
1340 * Returns: 0 on success (frame scheduled); -1 if client was not found
1342 int p2p_group_go_discover(struct p2p_group
*group
, const u8
*dev_id
,
1343 const u8
*searching_dev
, int rx_freq
);
1346 /* Generic helper functions */
1349 * p2p_ie_text - Build text format description of P2P IE
1351 * @buf: Buffer for returning text
1352 * @end: Pointer to the end of the buf area
1353 * Returns: Number of octets written to the buffer or -1 on failure
1355 * This function can be used to parse P2P IE contents into text format
1356 * field=value lines.
1358 int p2p_ie_text(struct wpabuf
*p2p_ie
, char *buf
, char *end
);
1361 * p2p_scan_result_text - Build text format description of P2P IE
1362 * @ies: Information elements from scan results
1363 * @ies_len: ies buffer length in octets
1364 * @buf: Buffer for returning text
1365 * @end: Pointer to the end of the buf area
1366 * Returns: Number of octets written to the buffer or -1 on failure
1368 * This function can be used to parse P2P IE contents into text format
1369 * field=value lines.
1371 int p2p_scan_result_text(const u8
*ies
, size_t ies_len
, char *buf
, char *end
);
1374 * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s)
1375 * @ies: Information elements from scan results
1376 * @ies_len: ies buffer length in octets
1377 * @dev_addr: Buffer for returning P2P Device Address
1378 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1380 int p2p_parse_dev_addr(const u8
*ies
, size_t ies_len
, u8
*dev_addr
);
1383 * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame
1384 * @p2p: P2P module context from p2p_init()
1386 * @buf: Buffer for writing the P2P IE
1387 * @len: Maximum buf length in octets
1388 * @p2p_group: Whether this is for association with a P2P GO
1389 * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none
1390 * Returns: Number of octets written into buf or -1 on failure
1392 int p2p_assoc_req_ie(struct p2p_data
*p2p
, const u8
*bssid
, u8
*buf
,
1393 size_t len
, int p2p_group
, struct wpabuf
*p2p_ie
);
1396 * p2p_scan_ie - Build P2P IE for Probe Request
1397 * @p2p: P2P module context from p2p_init()
1398 * @ies: Buffer for writing P2P IE
1399 * @dev_id: Device ID to search for or %NULL for any
1401 void p2p_scan_ie(struct p2p_data
*p2p
, struct wpabuf
*ies
, const u8
*dev_id
);
1404 * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie
1405 * @p2p: P2P module context from p2p_init()
1406 * Returns: Number of octets that p2p_scan_ie() may add to the buffer
1408 size_t p2p_scan_ie_buf_len(struct p2p_data
*p2p
);
1411 * p2p_go_params - Generate random P2P group parameters
1412 * @p2p: P2P module context from p2p_init()
1413 * @params: Buffer for parameters
1414 * Returns: 0 on success, -1 on failure
1416 int p2p_go_params(struct p2p_data
*p2p
, struct p2p_go_neg_results
*params
);
1419 * p2p_get_group_capab - Get Group Capability from P2P IE data
1420 * @p2p_ie: P2P IE(s) contents
1421 * Returns: Group Capability
1423 u8
p2p_get_group_capab(const struct wpabuf
*p2p_ie
);
1426 * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection
1427 * @p2p_ie: P2P IE(s) contents
1428 * Returns: 0 if cross connection is allow, 1 if not
1430 int p2p_get_cross_connect_disallowed(const struct wpabuf
*p2p_ie
);
1433 * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data
1434 * @p2p_ie: P2P IE(s) contents
1435 * Returns: Pointer to P2P Device Address or %NULL if not included
1437 const u8
* p2p_get_go_dev_addr(const struct wpabuf
*p2p_ie
);
1440 * p2p_get_peer_info - Get P2P peer information
1441 * @p2p: P2P module context from p2p_init()
1442 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1443 * @next: Whether to select the peer entry following the one indicated by addr
1444 * Returns: Pointer to peer info or %NULL if not found
1446 const struct p2p_peer_info
* p2p_get_peer_info(struct p2p_data
*p2p
,
1447 const u8
*addr
, int next
);
1450 * p2p_get_peer_info_txt - Get internal P2P peer information in text format
1451 * @info: Pointer to P2P peer info from p2p_get_peer_info()
1452 * @buf: Buffer for returning text
1453 * @buflen: Maximum buffer length
1454 * Returns: Number of octets written to the buffer or -1 on failure
1456 * Note: This information is internal to the P2P module and subject to change.
1457 * As such, this should not really be used by external programs for purposes
1458 * other than debugging.
1460 int p2p_get_peer_info_txt(const struct p2p_peer_info
*info
,
1461 char *buf
, size_t buflen
);
1464 * p2p_peer_known - Check whether P2P peer is known
1465 * @p2p: P2P module context from p2p_init()
1466 * @addr: P2P Device Address of the peer
1467 * Returns: 1 if the specified device is in the P2P peer table or 0 if not
1469 int p2p_peer_known(struct p2p_data
*p2p
, const u8
*addr
);
1472 * p2p_set_client_discoverability - Set client discoverability capability
1473 * @p2p: P2P module context from p2p_init()
1474 * @enabled: Whether client discoverability will be enabled
1476 * This function can be used to disable (and re-enable) client discoverability.
1477 * This capability is enabled by default and should not be disabled in normal
1478 * use cases, i.e., this is mainly for testing purposes.
1480 void p2p_set_client_discoverability(struct p2p_data
*p2p
, int enabled
);
1483 * p2p_set_managed_oper - Set managed P2P Device operations capability
1484 * @p2p: P2P module context from p2p_init()
1485 * @enabled: Whether managed P2P Device operations will be enabled
1487 void p2p_set_managed_oper(struct p2p_data
*p2p
, int enabled
);
1489 int p2p_set_listen_channel(struct p2p_data
*p2p
, u8 reg_class
, u8 channel
);
1491 int p2p_set_ssid_postfix(struct p2p_data
*p2p
, const u8
*postfix
, size_t len
);
1493 int p2p_get_interface_addr(struct p2p_data
*p2p
, const u8
*dev_addr
,
1495 int p2p_get_dev_addr(struct p2p_data
*p2p
, const u8
*iface_addr
,
1498 void p2p_set_peer_filter(struct p2p_data
*p2p
, const u8
*addr
);
1501 * p2p_set_cross_connect - Set cross connection capability
1502 * @p2p: P2P module context from p2p_init()
1503 * @enabled: Whether cross connection will be enabled
1505 void p2p_set_cross_connect(struct p2p_data
*p2p
, int enabled
);
1507 int p2p_get_oper_freq(struct p2p_data
*p2p
, const u8
*iface_addr
);
1510 * p2p_set_intra_bss_dist - Set intra BSS distribution
1511 * @p2p: P2P module context from p2p_init()
1512 * @enabled: Whether intra BSS distribution will be enabled
1514 void p2p_set_intra_bss_dist(struct p2p_data
*p2p
, int enabled
);
1517 * p2p_supported_freq - Check whether channel is supported for P2P
1518 * @p2p: P2P module context from p2p_init()
1519 * @freq: Channel frequency in MHz
1520 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
1522 int p2p_supported_freq(struct p2p_data
*p2p
, unsigned int freq
);
1524 void p2p_update_channel_list(struct p2p_data
*p2p
, struct p2p_channels
*chan
);
1527 * p2p_set_best_channels - Update best channel information
1528 * @p2p: P2P module context from p2p_init()
1529 * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band
1530 * @freq_5: Frequency (MHz) of best channel in 5 GHz band
1531 * @freq_overall: Frequency (MHz) of best channel overall
1533 void p2p_set_best_channels(struct p2p_data
*p2p
, int freq_24
, int freq_5
,
1536 const u8
* p2p_get_go_neg_peer(struct p2p_data
*p2p
);
1539 * p2p_get_group_num_members - Get number of members in group
1540 * @group: P2P group context from p2p_group_init()
1541 * Returns: Number of members in the group
1543 unsigned int p2p_get_group_num_members(struct p2p_group
*group
);
1546 * p2p_iterate_group_members - Iterate group members
1547 * @group: P2P group context from p2p_group_init()
1548 * @next: iteration pointer, must be a pointer to a void * that is set to %NULL
1549 * on the first call and not modified later
1550 * Returns: A P2P Interface Address for each call and %NULL for no more members
1552 const u8
* p2p_iterate_group_members(struct p2p_group
*group
, void **next
);
1555 * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group
1556 * @group: P2P group context from p2p_group_init()
1557 * @addr: P2P Interface Address of the client
1558 * Returns: P2P Device Address of the client if found or %NULL if no match
1561 const u8
* p2p_group_get_dev_addr(struct p2p_group
*group
, const u8
*addr
);
1564 * p2p_group_is_client_connected - Check whether a specific client is connected
1565 * @group: P2P group context from p2p_group_init()
1566 * @addr: P2P Device Address of the client
1567 * Returns: 1 if client is connected or 0 if not
1569 int p2p_group_is_client_connected(struct p2p_group
*group
, const u8
*dev_addr
);
1572 * p2p_get_peer_found - Get P2P peer info structure of a found peer
1573 * @p2p: P2P module context from p2p_init()
1574 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1575 * @next: Whether to select the peer entry following the one indicated by addr
1576 * Returns: The first P2P peer info available or %NULL if no such peer exists
1578 const struct p2p_peer_info
*
1579 p2p_get_peer_found(struct p2p_data
*p2p
, const u8
*addr
, int next
);
1582 * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions
1583 * @p2p: P2P module context from p2p_init()
1585 void p2p_remove_wps_vendor_extensions(struct p2p_data
*p2p
);
1588 * p2p_add_wps_vendor_extension - Add a WPS vendor extension
1589 * @p2p: P2P module context from p2p_init()
1590 * @vendor_ext: The vendor extensions to add
1591 * Returns: 0 on success, -1 on failure
1593 * The wpabuf structures in the array are owned by the P2P
1594 * module after this call.
1596 int p2p_add_wps_vendor_extension(struct p2p_data
*p2p
,
1597 const struct wpabuf
*vendor_ext
);
1600 * p2p_set_oper_channel - Set the P2P operating channel
1601 * @p2p: P2P module context from p2p_init()
1602 * @op_reg_class: Operating regulatory class to set
1603 * @op_channel: operating channel to set
1604 * @cfg_op_channel : Whether op_channel is hardcoded in configuration
1605 * Returns: 0 on success, -1 on failure
1607 int p2p_set_oper_channel(struct p2p_data
*p2p
, u8 op_reg_class
, u8 op_channel
,
1608 int cfg_op_channel
);
1611 * p2p_in_progress - Check whether a P2P operation is progress
1612 * @p2p: P2P module context from p2p_init()
1613 * Returns: 0 if P2P module is idle or 1 if an operation is in progress
1615 int p2p_in_progress(struct p2p_data
*p2p
);
1618 * p2p_other_scan_completed - Notify completion of non-P2P scan
1619 * @p2p: P2P module context from p2p_init()
1620 * Returns: 0 if P2P module is idle or 1 if an operation was started
1622 int p2p_other_scan_completed(struct p2p_data
*p2p
);
1624 const char * p2p_wps_method_text(enum p2p_wps_method method
);