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 SRV_UPDATE, SRV_ADD, SRV_DEL, SRV_FLUSH
61 * struct p2p_go_neg_results - P2P Group Owner Negotiation results
63 struct p2p_go_neg_results {
65 * status - Negotiation result (Status Code)
67 * 0 (P2P_SC_SUCCESS) indicates success. Non-zero values indicate
73 * role_go - Whether local end is Group Owner
78 * freq - Frequency of the group operational channel in MHz
85 * ssid - SSID of the group
90 * ssid_len - Length of SSID in octets
95 * passphrase - WPA2-Personal passphrase for the group (GO only)
100 * peer_device_addr - P2P Device Address of the peer
102 u8 peer_device_addr[ETH_ALEN];
105 * peer_interface_addr - P2P Interface Address of the peer
107 u8 peer_interface_addr[ETH_ALEN];
110 * wps_method - WPS method to be used during provisioning
112 enum p2p_wps_method wps_method;
114 #define P2P_MAX_CHANNELS 50
117 * freq_list - Zero-terminated list of possible operational channels
119 int freq_list[P2P_MAX_CHANNELS];
122 * persistent_group - Whether the group should be made persistent
124 * 1 = persistent group without persistent reconnect
125 * 2 = persistent group with persistent reconnect
127 int persistent_group;
130 * peer_config_timeout - Peer configuration timeout (in 10 msec units)
132 unsigned int peer_config_timeout;
141 P2P_SCAN_SOCIAL_PLUS_ONE
144 #define P2P_MAX_WPS_VENDOR_EXT 10
147 * struct p2p_peer_info - P2P peer information
149 struct p2p_peer_info {
151 * p2p_device_addr - P2P Device Address of the peer
153 u8 p2p_device_addr[ETH_ALEN];
156 * pri_dev_type - Primary Device Type
161 * device_name - Device Name (0..32 octets encoded in UTF-8)
163 char device_name[33];
166 * manufacturer - Manufacturer (0..64 octets encoded in UTF-8)
168 char manufacturer[65];
171 * model_name - Model Name (0..32 octets encoded in UTF-8)
176 * model_number - Model Number (0..32 octets encoded in UTF-8)
178 char model_number[33];
181 * serial_number - Serial Number (0..32 octets encoded in UTF-8)
183 char serial_number[33];
186 * level - Signal level
191 * config_methods - WPS Configuration Methods
196 * dev_capab - Device Capabilities
201 * group_capab - Group Capabilities
206 * wps_sec_dev_type_list - WPS secondary device type list
208 * This list includes from 0 to 16 Secondary Device Types as indicated
209 * by wps_sec_dev_type_list_len (8 * number of types).
211 u8 wps_sec_dev_type_list[128];
214 * wps_sec_dev_type_list_len - Length of secondary device type list
216 size_t wps_sec_dev_type_list_len;
218 struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT];
221 * wfd_subelems - Wi-Fi Display subelements from WFD IE(s)
223 struct wpabuf *wfd_subelems;
226 enum p2p_prov_disc_status {
227 P2P_PROV_DISC_SUCCESS,
228 P2P_PROV_DISC_TIMEOUT,
229 P2P_PROV_DISC_REJECTED,
238 * struct p2p_config - P2P configuration
240 * This configuration is provided to the P2P module during initialization with
245 * country - Country code to use in P2P operations
250 * reg_class - Regulatory class for own listen channel
255 * channel - Own listen channel
260 * Regulatory class for own operational channel
265 * op_channel - Own operational channel
270 * cfg_op_channel - Whether op_channel is hardcoded in configuration
275 * channels - Own supported regulatory classes and channels
277 * List of supposerted channels per regulatory class. The regulatory
278 * classes are defined in IEEE Std 802.11-2007 Annex J and the
279 * numbering of the clases depends on the configured country code.
281 struct p2p_channels channels;
284 * num_pref_chan - Number of pref_chan entries
286 unsigned int num_pref_chan;
289 * pref_chan - Preferred channels for GO Negotiation
291 struct p2p_channel *pref_chan;
294 * pri_dev_type - Primary Device Type (see WPS)
299 * P2P_SEC_DEVICE_TYPES - Maximum number of secondary device types
301 #define P2P_SEC_DEVICE_TYPES 5
304 * sec_dev_type - Optional secondary device types
306 u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8];
309 * num_sec_dev_types - Number of sec_dev_type entries
311 size_t num_sec_dev_types;
314 * dev_addr - P2P Device Address
316 u8 dev_addr[ETH_ALEN];
319 * dev_name - Device Name
332 * concurrent_operations - Whether concurrent operations are supported
334 int concurrent_operations;
337 * max_peers - Maximum number of discovered peers to remember
339 * If more peers are discovered, older entries will be removed to make
340 * room for the new ones.
345 * p2p_intra_bss - Intra BSS communication is supported
350 * ssid_postfix - Postfix data to add to the SSID
352 * This data will be added to the end of the SSID after the
353 * DIRECT-<random two octets> prefix.
355 u8 ssid_postfix[32 - 9];
358 * ssid_postfix_len - Length of the ssid_postfix data
360 size_t ssid_postfix_len;
363 enum p2p_concurrency_type {
365 P2P_SINGLE_CHANNEL_CONCURRENT,
366 P2P_MULTI_CHANNEL_CONCURRENT,
371 * msg_ctx - Context to use with wpa_msg() calls
376 * cb_ctx - Context to use with callback functions
381 /* Callbacks to request lower layer driver operations */
384 * p2p_scan - Request a P2P scan/search
385 * @ctx: Callback context from cb_ctx
387 * @freq: Specific frequency (MHz) to scan or 0 for no restriction
388 * @num_req_dev_types: Number of requested device types
389 * @req_dev_types: Array containing requested device types
390 * @dev_id: Device ID to search for or %NULL to find all devices
391 * @pw_id: Device Password ID
392 * Returns: 0 on success, -1 on failure
394 * This callback function is used to request a P2P scan or search
395 * operation to be completed. Type type argument specifies which type
396 * of scan is to be done. @P2P_SCAN_SOCIAL indicates that only the
397 * social channels (1, 6, 11) should be scanned. @P2P_SCAN_FULL
398 * indicates that all channels are to be scanned.
399 * @P2P_SCAN_SOCIAL_PLUS_ONE request scan of all the social channels
400 * plus one extra channel specified by freq.
402 * The full scan is used for the initial scan to find group owners from
403 * all. The other types are used during search phase scan of the social
404 * channels (with potential variation if the Listen channel of the
405 * target peer is known or if other channels are scanned in steps).
407 * The scan results are returned after this call by calling
408 * p2p_scan_res_handler() for each scan result that has a P2P IE and
409 * then calling p2p_scan_res_handled() to indicate that all scan
410 * results have been indicated.
412 int (*p2p_scan)(void *ctx, enum p2p_scan_type type, int freq,
413 unsigned int num_req_dev_types,
414 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id);
417 * send_probe_resp - Transmit a Probe Response frame
418 * @ctx: Callback context from cb_ctx
419 * @buf: Probe Response frame (including the header and body)
420 * Returns: 0 on success, -1 on failure
422 * This function is used to reply to Probe Request frames that were
423 * indicated with a call to p2p_probe_req_rx(). The response is to be
424 * sent on the same channel or to be dropped if the driver is not
425 * anymore listening to Probe Request frames.
427 * Alternatively, the responsibility for building the Probe Response
428 * frames in Listen state may be in another system component in which
429 * case this function need to be implemented (i.e., the function
430 * pointer can be %NULL). The WPS and P2P IEs to be added for Probe
431 * Response frames in such a case are available from the
432 * start_listen() callback. It should be noted that the received Probe
433 * Request frames must be indicated by calling p2p_probe_req_rx() even
434 * if this send_probe_resp() is not used.
436 int (*send_probe_resp)(void *ctx, const struct wpabuf *buf);
439 * send_action - Transmit an Action frame
440 * @ctx: Callback context from cb_ctx
441 * @freq: Frequency in MHz for the channel on which to transmit
442 * @dst: Destination MAC address (Address 1)
443 * @src: Source MAC address (Address 2)
444 * @bssid: BSSID (Address 3)
445 * @buf: Frame body (starting from Category field)
446 * @len: Length of buf in octets
447 * @wait_time: How many msec to wait for a response frame
448 * Returns: 0 on success, -1 on failure
450 * The Action frame may not be transmitted immediately and the status
451 * of the transmission must be reported by calling
452 * p2p_send_action_cb() once the frame has either been transmitted or
453 * it has been dropped due to excessive retries or other failure to
456 int (*send_action)(void *ctx, unsigned int freq, const u8 *dst,
457 const u8 *src, const u8 *bssid, const u8 *buf,
458 size_t len, unsigned int wait_time);
461 * send_action_done - Notify that Action frame sequence was completed
462 * @ctx: Callback context from cb_ctx
464 * This function is called when the Action frame sequence that was
465 * started with send_action() has been completed, i.e., when there is
466 * no need to wait for a response from the destination peer anymore.
468 void (*send_action_done)(void *ctx);
471 * start_listen - Start Listen state
472 * @ctx: Callback context from cb_ctx
473 * @freq: Frequency of the listen channel in MHz
474 * @duration: Duration for the Listen state in milliseconds
475 * @probe_resp_ie: IE(s) to be added to Probe Response frames
476 * Returns: 0 on success, -1 on failure
478 * This Listen state may not start immediately since the driver may
479 * have other pending operations to complete first. Once the Listen
480 * state has started, p2p_listen_cb() must be called to notify the P2P
481 * module. Once the Listen state is stopped, p2p_listen_end() must be
482 * called to notify the P2P module that the driver is not in the Listen
485 * If the send_probe_resp() is not used for generating the response,
486 * the IEs from probe_resp_ie need to be added to the end of the Probe
487 * Response frame body. If send_probe_resp() is used, the probe_resp_ie
488 * information can be ignored.
490 int (*start_listen)(void *ctx, unsigned int freq,
491 unsigned int duration,
492 const struct wpabuf *probe_resp_ie);
494 * stop_listen - Stop Listen state
495 * @ctx: Callback context from cb_ctx
497 * This callback can be used to stop a Listen state operation that was
498 * previously requested with start_listen().
500 void (*stop_listen)(void *ctx);
503 * get_noa - Get current Notice of Absence attribute payload
504 * @ctx: Callback context from cb_ctx
505 * @interface_addr: P2P Interface Address of the GO
506 * @buf: Buffer for returning NoA
507 * @buf_len: Buffer length in octets
508 * Returns: Number of octets used in buf, 0 to indicate no NoA is being
509 * advertized, or -1 on failure
511 * This function is used to fetch the current Notice of Absence
512 * attribute value from GO.
514 int (*get_noa)(void *ctx, const u8 *interface_addr, u8 *buf,
517 /* Callbacks to notify events to upper layer management entity */
520 * dev_found - Notification of a found P2P Device
521 * @ctx: Callback context from cb_ctx
522 * @addr: Source address of the message triggering this notification
523 * @info: P2P peer information
524 * @new_device: Inform if the peer is newly found
526 * This callback is used to notify that a new P2P Device has been
527 * found. This may happen, e.g., during Search state based on scan
528 * results or during Listen state based on receive Probe Request and
529 * Group Owner Negotiation Request.
531 void (*dev_found)(void *ctx, const u8 *addr,
532 const struct p2p_peer_info *info,
536 * dev_lost - Notification of a lost P2P Device
537 * @ctx: Callback context from cb_ctx
538 * @dev_addr: P2P Device Address of the lost P2P Device
540 * This callback is used to notify that a P2P Device has been deleted.
542 void (*dev_lost)(void *ctx, const u8 *dev_addr);
545 * go_neg_req_rx - Notification of a receive GO Negotiation Request
546 * @ctx: Callback context from cb_ctx
547 * @src: Source address of the message triggering this notification
548 * @dev_passwd_id: WPS Device Password ID
550 * This callback is used to notify that a P2P Device is requesting
551 * group owner negotiation with us, but we do not have all the
552 * necessary information to start GO Negotiation. This indicates that
553 * the local user has not authorized the connection yet by providing a
554 * PIN or PBC button press. This information can be provided with a
555 * call to p2p_connect().
557 void (*go_neg_req_rx)(void *ctx, const u8 *src, u16 dev_passwd_id);
560 * go_neg_completed - Notification of GO Negotiation results
561 * @ctx: Callback context from cb_ctx
562 * @res: GO Negotiation results
564 * This callback is used to notify that Group Owner Negotiation has
565 * been completed. Non-zero struct p2p_go_neg_results::status indicates
566 * failed negotiation. In case of success, this function is responsible
567 * for creating a new group interface (or using the existing interface
568 * depending on driver features), setting up the group interface in
569 * proper mode based on struct p2p_go_neg_results::role_go and
570 * initializing WPS provisioning either as a Registrar (if GO) or as an
571 * Enrollee. Successful WPS provisioning must be indicated by calling
572 * p2p_wps_success_cb(). The callee is responsible for timing out group
573 * formation if WPS provisioning cannot be completed successfully
576 void (*go_neg_completed)(void *ctx, struct p2p_go_neg_results *res);
579 * sd_request - Callback on Service Discovery Request
580 * @ctx: Callback context from cb_ctx
581 * @freq: Frequency (in MHz) of the channel
582 * @sa: Source address of the request
583 * @dialog_token: Dialog token
584 * @update_indic: Service Update Indicator from the source of request
585 * @tlvs: P2P Service Request TLV(s)
586 * @tlvs_len: Length of tlvs buffer in octets
588 * This callback is used to indicate reception of a service discovery
589 * request. Response to the query must be indicated by calling
590 * p2p_sd_response() with the context information from the arguments to
591 * this callback function.
593 * This callback handler can be set to %NULL to indicate that service
594 * discovery is not supported.
596 void (*sd_request)(void *ctx, int freq, const u8 *sa, u8 dialog_token,
597 u16 update_indic, const u8 *tlvs, size_t tlvs_len);
600 * sd_response - Callback on Service Discovery Response
601 * @ctx: Callback context from cb_ctx
602 * @sa: Source address of the request
603 * @update_indic: Service Update Indicator from the source of response
604 * @tlvs: P2P Service Response TLV(s)
605 * @tlvs_len: Length of tlvs buffer in octets
607 * This callback is used to indicate reception of a service discovery
608 * response. This callback handler can be set to %NULL if no service
609 * discovery requests are used. The information provided with this call
610 * is replies to the queries scheduled with p2p_sd_request().
612 void (*sd_response)(void *ctx, const u8 *sa, u16 update_indic,
613 const u8 *tlvs, size_t tlvs_len);
616 * prov_disc_req - Callback on Provisiong Discovery Request
617 * @ctx: Callback context from cb_ctx
618 * @peer: Source address of the request
619 * @config_methods: Requested WPS Config Method
620 * @dev_addr: P2P Device Address of the found P2P Device
621 * @pri_dev_type: Primary Device Type
622 * @dev_name: Device Name
623 * @supp_config_methods: Supported configuration Methods
624 * @dev_capab: Device Capabilities
625 * @group_capab: Group Capabilities
626 * @group_id: P2P Group ID (or %NULL if not included)
627 * @group_id_len: Length of P2P Group ID
629 * This callback is used to indicate reception of a Provision Discovery
630 * Request frame that the P2P module accepted.
632 void (*prov_disc_req)(void *ctx, const u8 *peer, u16 config_methods,
633 const u8 *dev_addr, const u8 *pri_dev_type,
634 const char *dev_name, u16 supp_config_methods,
635 u8 dev_capab, u8 group_capab,
636 const u8 *group_id, size_t group_id_len);
639 * prov_disc_resp - Callback on Provisiong Discovery Response
640 * @ctx: Callback context from cb_ctx
641 * @peer: Source address of the response
642 * @config_methods: Value from p2p_prov_disc_req() or 0 on failure
644 * This callback is used to indicate reception of a Provision Discovery
645 * Response frame for a pending request scheduled with
646 * p2p_prov_disc_req(). This callback handler can be set to %NULL if
647 * provision discovery is not used.
649 void (*prov_disc_resp)(void *ctx, const u8 *peer, u16 config_methods);
652 * prov_disc_fail - Callback on Provision Discovery failure
653 * @ctx: Callback context from cb_ctx
654 * @peer: Source address of the response
655 * @status: Cause of failure, will not be %P2P_PROV_DISC_SUCCESS
657 * This callback is used to indicate either a failure or no response
658 * to an earlier provision discovery request.
660 * This callback handler can be set to %NULL if provision discovery
661 * is not used or failures do not need to be indicated.
663 void (*prov_disc_fail)(void *ctx, const u8 *peer,
664 enum p2p_prov_disc_status status);
667 * invitation_process - Optional callback for processing Invitations
668 * @ctx: Callback context from cb_ctx
669 * @sa: Source address of the Invitation Request
670 * @bssid: P2P Group BSSID from the request or %NULL if not included
671 * @go_dev_addr: GO Device Address from P2P Group ID
672 * @ssid: SSID from P2P Group ID
673 * @ssid_len: Length of ssid buffer in octets
674 * @go: Variable for returning whether the local end is GO in the group
675 * @group_bssid: Buffer for returning P2P Group BSSID (if local end GO)
676 * @force_freq: Variable for returning forced frequency for the group
677 * @persistent_group: Whether this is an invitation to reinvoke a
678 * persistent group (instead of invitation to join an active
680 * Returns: Status code (P2P_SC_*)
682 * This optional callback can be used to implement persistent reconnect
683 * by allowing automatic restarting of persistent groups without user
684 * interaction. If this callback is not implemented (i.e., is %NULL),
685 * the received Invitation Request frames are replied with
686 * %P2P_SC_REQ_RECEIVED status and indicated to upper layer with the
687 * invitation_result() callback.
689 * If the requested parameters are acceptable and the group is known,
690 * %P2P_SC_SUCCESS may be returned. If the requested group is unknown,
691 * %P2P_SC_FAIL_UNKNOWN_GROUP should be returned. %P2P_SC_REQ_RECEIVED
692 * can be returned if there is not enough data to provide immediate
693 * response, i.e., if some sort of user interaction is needed. The
694 * invitation_received() callback will be called in that case
695 * immediately after this call.
697 u8 (*invitation_process)(void *ctx, const u8 *sa, const u8 *bssid,
698 const u8 *go_dev_addr, const u8 *ssid,
699 size_t ssid_len, int *go, u8 *group_bssid,
700 int *force_freq, int persistent_group);
703 * invitation_received - Callback on Invitation Request RX
704 * @ctx: Callback context from cb_ctx
705 * @sa: Source address of the Invitation Request
706 * @bssid: P2P Group BSSID or %NULL if not received
707 * @ssid: SSID of the group
708 * @ssid_len: Length of ssid in octets
709 * @go_dev_addr: GO Device Address
710 * @status: Response Status
711 * @op_freq: Operational frequency for the group
713 * This callback is used to indicate sending of an Invitation Response
714 * for a received Invitation Request. If status == 0 (success), the
715 * upper layer code is responsible for starting the group. status == 1
716 * indicates need to get user authorization for the group. Other status
717 * values indicate that the invitation request was rejected.
719 void (*invitation_received)(void *ctx, const u8 *sa, const u8 *bssid,
720 const u8 *ssid, size_t ssid_len,
721 const u8 *go_dev_addr, u8 status,
725 * invitation_result - Callback on Invitation result
726 * @ctx: Callback context from cb_ctx
727 * @status: Negotiation result (Status Code)
728 * @bssid: P2P Group BSSID or %NULL if not received
730 * This callback is used to indicate result of an Invitation procedure
731 * started with a call to p2p_invite(). The indicated status code is
732 * the value received from the peer in Invitation Response with 0
733 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a
734 * local failure in transmitting the Invitation Request.
736 void (*invitation_result)(void *ctx, int status, const u8 *bssid);
739 * go_connected - Check whether we are connected to a GO
740 * @ctx: Callback context from cb_ctx
741 * @dev_addr: P2P Device Address of a GO
742 * Returns: 1 if we are connected as a P2P client to the specified GO
745 int (*go_connected)(void *ctx, const u8 *dev_addr);
749 /* P2P module initialization/deinitialization */
752 * p2p_init - Initialize P2P module
753 * @cfg: P2P module configuration
754 * Returns: Pointer to private data or %NULL on failure
756 * This function is used to initialize global P2P module context (one per
757 * device). The P2P module will keep a copy of the configuration data, so the
758 * caller does not need to maintain this structure. However, the callback
759 * functions and the context parameters to them must be kept available until
760 * the P2P module is deinitialized with p2p_deinit().
762 struct p2p_data * p2p_init(const struct p2p_config *cfg);
765 * p2p_deinit - Deinitialize P2P module
766 * @p2p: P2P module context from p2p_init()
768 void p2p_deinit(struct p2p_data *p2p);
771 * p2p_flush - Flush P2P module state
772 * @p2p: P2P module context from p2p_init()
774 * This command removes the P2P module state like peer device entries.
776 void p2p_flush(struct p2p_data *p2p);
779 * p2p_unauthorize - Unauthorize the specified peer device
780 * @p2p: P2P module context from p2p_init()
781 * @addr: P2P peer entry to be unauthorized
782 * Returns: 0 on success, -1 on failure
784 * This command removes any connection authorization from the specified P2P
785 * peer device address. This can be used, e.g., to cancel effect of a previous
786 * p2p_authorize() or p2p_connect() call that has not yet resulted in completed
789 int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr);
792 * p2p_set_dev_name - Set device name
793 * @p2p: P2P module context from p2p_init()
794 * Returns: 0 on success, -1 on failure
796 * This function can be used to update the P2P module configuration with
797 * information that was not available at the time of the p2p_init() call.
799 int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name);
801 int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer);
802 int p2p_set_model_name(struct p2p_data *p2p, const char *model_name);
803 int p2p_set_model_number(struct p2p_data *p2p, const char *model_number);
804 int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number);
806 void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods);
807 void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid);
810 * p2p_set_pri_dev_type - Set primary device type
811 * @p2p: P2P module context from p2p_init()
812 * Returns: 0 on success, -1 on failure
814 * This function can be used to update the P2P module configuration with
815 * information that was not available at the time of the p2p_init() call.
817 int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type);
820 * p2p_set_sec_dev_types - Set secondary device types
821 * @p2p: P2P module context from p2p_init()
822 * Returns: 0 on success, -1 on failure
824 * This function can be used to update the P2P module configuration with
825 * information that was not available at the time of the p2p_init() call.
827 int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
828 size_t num_dev_types);
830 int p2p_set_country(struct p2p_data *p2p, const char *country);
833 /* Commands from upper layer management entity */
835 enum p2p_discovery_type {
836 P2P_FIND_START_WITH_FULL,
837 P2P_FIND_ONLY_SOCIAL,
842 * p2p_find - Start P2P Find (Device Discovery)
843 * @p2p: P2P module context from p2p_init()
844 * @timeout: Timeout for find operation in seconds or 0 for no timeout
845 * @type: Device Discovery type
846 * @num_req_dev_types: Number of requested device types
847 * @req_dev_types: Requested device types array, must be an array
848 * containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no
849 * requested device types.
850 * @dev_id: Device ID to search for or %NULL to find all devices
851 * @search_delay: Extra delay in milliseconds between search iterations
852 * Returns: 0 on success, -1 on failure
854 int p2p_find(struct p2p_data *p2p, unsigned int timeout,
855 enum p2p_discovery_type type,
856 unsigned int num_req_dev_types, const u8 *req_dev_types,
857 const u8 *dev_id, unsigned int search_delay);
860 * p2p_stop_find - Stop P2P Find (Device Discovery)
861 * @p2p: P2P module context from p2p_init()
863 void p2p_stop_find(struct p2p_data *p2p);
866 * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq
867 * @p2p: P2P module context from p2p_init()
868 * @freq: Frequency in MHz for next operation
870 * This is like p2p_stop_find(), but Listen state is not stopped if we are
871 * already on the same frequency.
873 void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq);
876 * p2p_listen - Start P2P Listen state for specified duration
877 * @p2p: P2P module context from p2p_init()
878 * @timeout: Listen state duration in milliseconds
879 * Returns: 0 on success, -1 on failure
881 * This function can be used to request the P2P module to keep the device
882 * discoverable on the listen channel for an extended set of time. At least in
883 * its current form, this is mainly used for testing purposes and may not be of
884 * much use for normal P2P operations.
886 int p2p_listen(struct p2p_data *p2p, unsigned int timeout);
889 * p2p_connect - Start P2P group formation (GO negotiation)
890 * @p2p: P2P module context from p2p_init()
891 * @peer_addr: MAC address of the peer P2P client
892 * @wps_method: WPS method to be used in provisioning
893 * @go_intent: Local GO intent value (1..15)
894 * @own_interface_addr: Intended interface address to use with the group
895 * @force_freq: The only allowed channel frequency in MHz or 0
896 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
897 * persistent group without persistent reconnect, 2 = persistent group with
898 * persistent reconnect)
899 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
901 * @force_ssid_len: Length of $force_ssid buffer
902 * @pd_before_go_neg: Whether to send Provision Discovery prior to GO
903 * Negotiation as an interoperability workaround when initiating group
905 * Returns: 0 on success, -1 on failure
907 int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
908 enum p2p_wps_method wps_method,
909 int go_intent, const u8 *own_interface_addr,
910 unsigned int force_freq, int persistent_group,
911 const u8 *force_ssid, size_t force_ssid_len,
912 int pd_before_go_neg);
915 * p2p_authorize - Authorize P2P group formation (GO negotiation)
916 * @p2p: P2P module context from p2p_init()
917 * @peer_addr: MAC address of the peer P2P client
918 * @wps_method: WPS method to be used in provisioning
919 * @go_intent: Local GO intent value (1..15)
920 * @own_interface_addr: Intended interface address to use with the group
921 * @force_freq: The only allowed channel frequency in MHz or 0
922 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
923 * persistent group without persistent reconnect, 2 = persistent group with
924 * persistent reconnect)
925 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
927 * @force_ssid_len: Length of $force_ssid buffer
928 * Returns: 0 on success, -1 on failure
930 * This is like p2p_connect(), but the actual group negotiation is not
931 * initiated automatically, i.e., the other end is expected to do that.
933 int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
934 enum p2p_wps_method wps_method,
935 int go_intent, const u8 *own_interface_addr,
936 unsigned int force_freq, int persistent_group,
937 const u8 *force_ssid, size_t force_ssid_len);
940 * p2p_reject - Reject peer device (explicitly block connection attempts)
941 * @p2p: P2P module context from p2p_init()
942 * @peer_addr: MAC address of the peer P2P client
943 * Returns: 0 on success, -1 on failure
945 int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr);
948 * p2p_prov_disc_req - Send Provision Discovery Request
949 * @p2p: P2P module context from p2p_init()
950 * @peer_addr: MAC address of the peer P2P client
951 * @config_methods: WPS Config Methods value (only one bit set)
952 * @join: Whether this is used by a client joining an active group
953 * @force_freq: Forced TX frequency for the frame (mainly for the join case)
954 * Returns: 0 on success, -1 on failure
956 * This function can be used to request a discovered P2P peer to display a PIN
957 * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us
958 * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame
959 * is transmitted once immediately and if no response is received, the frame
960 * will be sent again whenever the target device is discovered during device
961 * dsicovery (start with a p2p_find() call). Response from the peer is
962 * indicated with the p2p_config::prov_disc_resp() callback.
964 int p2p_prov_disc_req(struct p2p_data *p2p, const u8 *peer_addr,
965 u16 config_methods, int join, int force_freq);
968 * p2p_sd_request - Schedule a service discovery query
969 * @p2p: P2P module context from p2p_init()
970 * @dst: Destination peer or %NULL to apply for all peers
971 * @tlvs: P2P Service Query TLV(s)
972 * Returns: Reference to the query or %NULL on failure
974 * Response to the query is indicated with the p2p_config::sd_response()
977 void * p2p_sd_request(struct p2p_data *p2p, const u8 *dst,
978 const struct wpabuf *tlvs);
980 #ifdef CONFIG_WIFI_DISPLAY
981 void * p2p_sd_request_wfd(struct p2p_data *p2p, const u8 *dst,
982 const struct wpabuf *tlvs);
983 #endif /* CONFIG_WIFI_DISPLAY */
986 * p2p_sd_cancel_request - Cancel a pending service discovery query
987 * @p2p: P2P module context from p2p_init()
988 * @req: Query reference from p2p_sd_request()
989 * Returns: 0 if request for cancelled; -1 if not found
991 int p2p_sd_cancel_request(struct p2p_data *p2p, void *req);
994 * p2p_sd_response - Send response to a service discovery query
995 * @p2p: P2P module context from p2p_init()
996 * @freq: Frequency from p2p_config::sd_request() callback
997 * @dst: Destination address from p2p_config::sd_request() callback
998 * @dialog_token: Dialog token from p2p_config::sd_request() callback
999 * @resp_tlvs: P2P Service Response TLV(s)
1001 * This function is called as a response to the request indicated with
1002 * p2p_config::sd_request() callback.
1004 void p2p_sd_response(struct p2p_data *p2p, int freq, const u8 *dst,
1005 u8 dialog_token, const struct wpabuf *resp_tlvs);
1008 * p2p_sd_service_update - Indicate a change in local services
1009 * @p2p: P2P module context from p2p_init()
1011 * This function needs to be called whenever there is a change in availability
1012 * of the local services. This will increment the Service Update Indicator
1013 * value which will be used in SD Request and Response frames.
1016 void p2p_sd_service_update(struct p2p_data *p2p, int action);
1018 void p2p_sd_service_update(struct p2p_data *p2p);
1022 enum p2p_invite_role {
1024 P2P_INVITE_ROLE_ACTIVE_GO,
1025 P2P_INVITE_ROLE_CLIENT
1029 * p2p_invite - Invite a P2P Device into a group
1030 * @p2p: P2P module context from p2p_init()
1031 * @peer: Device Address of the peer P2P Device
1032 * @role: Local role in the group
1033 * @bssid: Group BSSID or %NULL if not known
1035 * @ssid_len: Length of ssid in octets
1036 * @force_freq: The only allowed channel frequency in MHz or 0
1037 * @go_dev_addr: Forced GO Device Address or %NULL if none
1038 * @persistent_group: Whether this is to reinvoke a persistent group
1039 * Returns: 0 on success, -1 on failure
1041 int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role,
1042 const u8 *bssid, const u8 *ssid, size_t ssid_len,
1043 unsigned int force_freq, const u8 *go_dev_addr,
1044 int persistent_group);
1047 * p2p_presence_req - Request GO presence
1048 * @p2p: P2P module context from p2p_init()
1049 * @go_interface_addr: GO P2P Interface Address
1050 * @own_interface_addr: Own P2P Interface Address for this group
1051 * @freq: Group operating frequence (in MHz)
1052 * @duration1: Preferred presence duration in microseconds
1053 * @interval1: Preferred presence interval in microseconds
1054 * @duration2: Acceptable presence duration in microseconds
1055 * @interval2: Acceptable presence interval in microseconds
1056 * Returns: 0 on success, -1 on failure
1058 * If both duration and interval values are zero, the parameter pair is not
1059 * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0).
1061 int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
1062 const u8 *own_interface_addr, unsigned int freq,
1063 u32 duration1, u32 interval1, u32 duration2,
1067 * p2p_ext_listen - Set Extended Listen Timing
1068 * @p2p: P2P module context from p2p_init()
1069 * @freq: Group operating frequence (in MHz)
1070 * @period: Availability period in milliseconds (1-65535; 0 to disable)
1071 * @interval: Availability interval in milliseconds (1-65535; 0 to disable)
1072 * Returns: 0 on success, -1 on failure
1074 * This function can be used to enable or disable (period = interval = 0)
1075 * Extended Listen Timing. When enabled, the P2P Device will become
1076 * discoverable (go into Listen State) every @interval milliseconds for at
1077 * least @period milliseconds.
1079 int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
1080 unsigned int interval);
1082 /* Event notifications from upper layer management operations */
1085 * p2p_wps_success_cb - Report successfully completed WPS provisioning
1086 * @p2p: P2P module context from p2p_init()
1087 * @mac_addr: Peer address
1089 * This function is used to report successfully completed WPS provisioning
1090 * during group formation in both GO/Registrar and client/Enrollee roles.
1092 void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr);
1095 * p2p_group_formation_failed - Report failed WPS provisioning
1096 * @p2p: P2P module context from p2p_init()
1098 * This function is used to report failed group formation. This can happen
1099 * either due to failed WPS provisioning or due to 15 second timeout during
1100 * the provisioning phase.
1102 void p2p_group_formation_failed(struct p2p_data *p2p);
1105 * p2p_get_provisioning_info - Get any stored provisioning info
1106 * @p2p: P2P module context from p2p_init()
1107 * @addr: Peer P2P Device Address
1108 * Returns: WPS provisioning information (WPS config method) or 0 if no
1109 * information is available
1111 * This function is used to retrieve stored WPS provisioning info for the given
1114 u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr);
1117 * p2p_clear_provisioning_info - Clear any stored provisioning info
1118 * @p2p: P2P module context from p2p_init()
1119 * @iface_addr: Peer P2P Device Address
1121 * This function is used to clear stored WPS provisioning info for the given
1124 void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr);
1127 /* Event notifications from lower layer driver operations */
1130 * enum p2p_probe_req_status
1132 * @P2P_PREQ_MALFORMED: frame was not well-formed
1133 * @P2P_PREQ_NOT_LISTEN: device isn't in listen state, frame ignored
1134 * @P2P_PREQ_NOT_P2P: frame was not a P2P probe request
1135 * @P2P_PREQ_P2P_NOT_PROCESSED: frame was P2P but wasn't processed
1136 * @P2P_PREQ_P2P_PROCESSED: frame has been processed by P2P
1138 enum p2p_probe_req_status {
1140 P2P_PREQ_NOT_LISTEN,
1142 P2P_PREQ_NOT_PROCESSED,
1147 * p2p_probe_req_rx - Report reception of a Probe Request frame
1148 * @p2p: P2P module context from p2p_init()
1149 * @addr: Source MAC address
1150 * @dst: Destination MAC address if available or %NULL
1151 * @bssid: BSSID if available or %NULL
1152 * @ie: Information elements from the Probe Request frame body
1153 * @ie_len: Length of ie buffer in octets
1154 * Returns: value indicating the type and status of the probe request
1156 enum p2p_probe_req_status
1157 p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
1158 const u8 *bssid, const u8 *ie, size_t ie_len);
1161 * p2p_rx_action - Report received Action frame
1162 * @p2p: P2P module context from p2p_init()
1163 * @da: Destination address of the received Action frame
1164 * @sa: Source address of the received Action frame
1165 * @bssid: Address 3 of the received Action frame
1166 * @category: Category of the received Action frame
1167 * @data: Action frame body after the Category field
1168 * @len: Length of the data buffer in octets
1169 * @freq: Frequency (in MHz) on which the frame was received
1171 void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1172 const u8 *bssid, u8 category,
1173 const u8 *data, size_t len, int freq);
1176 * p2p_scan_res_handler - Indicate a P2P scan results
1177 * @p2p: P2P module context from p2p_init()
1178 * @bssid: BSSID of the scan result
1179 * @freq: Frequency of the channel on which the device was found in MHz
1180 * @level: Signal level (signal strength of the received Beacon/Probe Response
1182 * @ies: Pointer to IEs from the scan result
1183 * @ies_len: Length of the ies buffer
1184 * Returns: 0 to continue or 1 to stop scan result indication
1186 * This function is called to indicate a scan result entry with P2P IE from a
1187 * scan requested with struct p2p_config::p2p_scan(). This can be called during
1188 * the actual scan process (i.e., whenever a new device is found) or as a
1189 * sequence of calls after the full scan has been completed. The former option
1190 * can result in optimized operations, but may not be supported by all
1191 * driver/firmware designs. The ies buffer need to include at least the P2P IE,
1192 * but it is recommended to include all IEs received from the device. The
1193 * caller does not need to check that the IEs contain a P2P IE before calling
1194 * this function since frames will be filtered internally if needed.
1196 * This function will return 1 if it wants to stop scan result iteration (and
1197 * scan in general if it is still in progress). This is used to allow faster
1198 * start of a pending operation, e.g., to start a pending GO negotiation.
1200 int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
1201 int level, const u8 *ies, size_t ies_len);
1204 * p2p_scan_res_handled - Indicate end of scan results
1205 * @p2p: P2P module context from p2p_init()
1207 * This function is called to indicate that all P2P scan results from a scan
1208 * have been reported with zero or more calls to p2p_scan_res_handler(). This
1209 * function must be called as a response to successful
1210 * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler()
1211 * calls stopped iteration.
1213 void p2p_scan_res_handled(struct p2p_data *p2p);
1215 enum p2p_send_action_result {
1216 P2P_SEND_ACTION_SUCCESS /* Frame was send and acknowledged */,
1217 P2P_SEND_ACTION_NO_ACK /* Frame was sent, but not acknowledged */,
1218 P2P_SEND_ACTION_FAILED /* Frame was not sent due to a failure */
1222 * p2p_send_action_cb - Notify TX status of an Action frame
1223 * @p2p: P2P module context from p2p_init()
1224 * @freq: Channel frequency in MHz
1225 * @dst: Destination MAC address (Address 1)
1226 * @src: Source MAC address (Address 2)
1227 * @bssid: BSSID (Address 3)
1228 * @result: Result of the transmission attempt
1230 * This function is used to indicate the result of an Action frame transmission
1231 * that was requested with struct p2p_config::send_action() callback.
1233 void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
1234 const u8 *src, const u8 *bssid,
1235 enum p2p_send_action_result result);
1238 * p2p_listen_cb - Indicate the start of a requested Listen state
1239 * @p2p: P2P module context from p2p_init()
1240 * @freq: Listen channel frequency in MHz
1241 * @duration: Duration for the Listen state in milliseconds
1243 * This function is used to indicate that a Listen state requested with
1244 * struct p2p_config::start_listen() callback has started.
1246 void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
1247 unsigned int duration);
1250 * p2p_listen_end - Indicate the end of a requested Listen state
1251 * @p2p: P2P module context from p2p_init()
1252 * @freq: Listen channel frequency in MHz
1253 * Returns: 0 if no operations were started, 1 if an operation was started
1255 * This function is used to indicate that a Listen state requested with
1256 * struct p2p_config::start_listen() callback has ended.
1258 int p2p_listen_end(struct p2p_data *p2p, unsigned int freq);
1260 void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
1261 const u8 *ie, size_t ie_len);
1263 void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
1264 const u8 *ie, size_t ie_len);
1267 /* Per-group P2P state for GO */
1272 * struct p2p_group_config - P2P group configuration
1274 * This configuration is provided to the P2P module during initialization of
1275 * the per-group information with p2p_group_init().
1277 struct p2p_group_config {
1279 * persistent_group - Whether the group is persistent
1280 * 0 = not a persistent group
1281 * 1 = persistent group without persistent reconnect
1282 * 2 = persistent group with persistent reconnect
1284 int persistent_group;
1287 * interface_addr - P2P Interface Address of the group
1289 u8 interface_addr[ETH_ALEN];
1292 * max_clients - Maximum number of clients in the group
1294 unsigned int max_clients;
1302 * ssid_len - Length of SSID
1307 * cb_ctx - Context to use with callback functions
1312 * ie_update - Notification of IE update
1313 * @ctx: Callback context from cb_ctx
1314 * @beacon_ies: P2P IE for Beacon frames or %NULL if no change
1315 * @proberesp_ies: P2P Ie for Probe Response frames
1317 * P2P module uses this callback function to notify whenever the P2P IE
1318 * in Beacon or Probe Response frames should be updated based on group
1321 * The callee is responsible for freeing the returned buffer(s) with
1324 void (*ie_update)(void *ctx, struct wpabuf *beacon_ies,
1325 struct wpabuf *proberesp_ies);
1328 * idle_update - Notification of changes in group idle state
1329 * @ctx: Callback context from cb_ctx
1330 * @idle: Whether the group is idle (no associated stations)
1332 void (*idle_update)(void *ctx, int idle);
1336 * p2p_group_init - Initialize P2P group
1337 * @p2p: P2P module context from p2p_init()
1338 * @config: P2P group configuration (will be freed by p2p_group_deinit())
1339 * Returns: Pointer to private data or %NULL on failure
1341 * This function is used to initialize per-group P2P module context. Currently,
1342 * this is only used to manage GO functionality and P2P clients do not need to
1343 * create an instance of this per-group information.
1345 struct p2p_group * p2p_group_init(struct p2p_data *p2p,
1346 struct p2p_group_config *config);
1349 * p2p_group_deinit - Deinitialize P2P group
1350 * @group: P2P group context from p2p_group_init()
1352 void p2p_group_deinit(struct p2p_group *group);
1355 * p2p_group_notif_assoc - Notification of P2P client association with GO
1356 * @group: P2P group context from p2p_group_init()
1357 * @addr: Interface address of the P2P client
1358 * @ie: IEs from the (Re)association Request frame
1359 * @len: Length of the ie buffer in octets
1360 * Returns: 0 on success, -1 on failure
1362 int p2p_group_notif_assoc(struct p2p_group *group, const u8 *addr,
1363 const u8 *ie, size_t len);
1366 * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response
1367 * @group: P2P group context from p2p_group_init()
1368 * @status: Status value (P2P_SC_SUCCESS if association succeeded)
1369 * Returns: P2P IE for (Re)association Response or %NULL on failure
1371 * The caller is responsible for freeing the returned buffer with
1374 struct wpabuf * p2p_group_assoc_resp_ie(struct p2p_group *group, u8 status);
1377 * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO
1378 * @group: P2P group context from p2p_group_init()
1379 * @addr: Interface address of the P2P client
1381 void p2p_group_notif_disassoc(struct p2p_group *group, const u8 *addr);
1384 * p2p_group_notif_formation_done - Notification of completed group formation
1385 * @group: P2P group context from p2p_group_init()
1387 void p2p_group_notif_formation_done(struct p2p_group *group);
1390 * p2p_group_notif_noa - Notification of NoA change
1391 * @group: P2P group context from p2p_group_init()
1392 * @noa: Notice of Absence attribute payload, %NULL if none
1393 * @noa_len: Length of noa buffer in octets
1394 * Returns: 0 on success, -1 on failure
1396 * Notify the P2P group management about a new NoA contents. This will be
1397 * inserted into the P2P IEs in Beacon and Probe Response frames with rest of
1398 * the group information.
1400 int p2p_group_notif_noa(struct p2p_group *group, const u8 *noa,
1404 * p2p_group_match_dev_type - Match device types in group with requested type
1405 * @group: P2P group context from p2p_group_init()
1406 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1407 * Returns: 1 on match, 0 on mismatch
1409 * This function can be used to match the Requested Device Type attribute in
1410 * WPS IE with the device types of a group member for deciding whether a GO
1411 * should reply to a Probe Request frame. Match will be reported if the WPS IE
1412 * is not requested any specific device type.
1414 int p2p_group_match_dev_type(struct p2p_group *group, struct wpabuf *wps);
1417 * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id
1419 int p2p_group_match_dev_id(struct p2p_group *group, struct wpabuf *p2p);
1422 * p2p_group_go_discover - Send GO Discoverability Request to a group client
1423 * @group: P2P group context from p2p_group_init()
1424 * Returns: 0 on success (frame scheduled); -1 if client was not found
1426 int p2p_group_go_discover(struct p2p_group *group, const u8 *dev_id,
1427 const u8 *searching_dev, int rx_freq);
1430 /* Generic helper functions */
1433 * p2p_ie_text - Build text format description of P2P IE
1435 * @buf: Buffer for returning text
1436 * @end: Pointer to the end of the buf area
1437 * Returns: Number of octets written to the buffer or -1 on failure
1439 * This function can be used to parse P2P IE contents into text format
1440 * field=value lines.
1442 int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end);
1445 * p2p_scan_result_text - Build text format description of P2P IE
1446 * @ies: Information elements from scan results
1447 * @ies_len: ies buffer length in octets
1448 * @buf: Buffer for returning text
1449 * @end: Pointer to the end of the buf area
1450 * Returns: Number of octets written to the buffer or -1 on failure
1452 * This function can be used to parse P2P IE contents into text format
1453 * field=value lines.
1455 int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end);
1458 * p2p_parse_dev_addr_in_p2p_ie - Parse P2P Device Address from a concatenated
1461 * @dev_addr: Buffer for returning P2P Device Address
1462 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1464 int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr);
1467 * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s)
1468 * @ies: Information elements from scan results
1469 * @ies_len: ies buffer length in octets
1470 * @dev_addr: Buffer for returning P2P Device Address
1471 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1473 int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr);
1476 * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame
1477 * @p2p: P2P module context from p2p_init()
1479 * @buf: Buffer for writing the P2P IE
1480 * @len: Maximum buf length in octets
1481 * @p2p_group: Whether this is for association with a P2P GO
1482 * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none
1483 * Returns: Number of octets written into buf or -1 on failure
1485 int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
1486 size_t len, int p2p_group, struct wpabuf *p2p_ie);
1489 * p2p_scan_ie - Build P2P IE for Probe Request
1490 * @p2p: P2P module context from p2p_init()
1491 * @ies: Buffer for writing P2P IE
1492 * @dev_id: Device ID to search for or %NULL for any
1494 void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id);
1497 * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie
1498 * @p2p: P2P module context from p2p_init()
1499 * Returns: Number of octets that p2p_scan_ie() may add to the buffer
1501 size_t p2p_scan_ie_buf_len(struct p2p_data *p2p);
1504 * p2p_go_params - Generate random P2P group parameters
1505 * @p2p: P2P module context from p2p_init()
1506 * @params: Buffer for parameters
1507 * Returns: 0 on success, -1 on failure
1509 int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params);
1512 * p2p_get_group_capab - Get Group Capability from P2P IE data
1513 * @p2p_ie: P2P IE(s) contents
1514 * Returns: Group Capability
1516 u8 p2p_get_group_capab(const struct wpabuf *p2p_ie);
1519 * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection
1520 * @p2p_ie: P2P IE(s) contents
1521 * Returns: 0 if cross connection is allow, 1 if not
1523 int p2p_get_cross_connect_disallowed(const struct wpabuf *p2p_ie);
1526 * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data
1527 * @p2p_ie: P2P IE(s) contents
1528 * Returns: Pointer to P2P Device Address or %NULL if not included
1530 const u8 * p2p_get_go_dev_addr(const struct wpabuf *p2p_ie);
1533 * p2p_get_peer_info - Get P2P peer information
1534 * @p2p: P2P module context from p2p_init()
1535 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1536 * @next: Whether to select the peer entry following the one indicated by addr
1537 * Returns: Pointer to peer info or %NULL if not found
1539 const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
1540 const u8 *addr, int next);
1543 * p2p_get_peer_info_txt - Get internal P2P peer information in text format
1544 * @info: Pointer to P2P peer info from p2p_get_peer_info()
1545 * @buf: Buffer for returning text
1546 * @buflen: Maximum buffer length
1547 * Returns: Number of octets written to the buffer or -1 on failure
1549 * Note: This information is internal to the P2P module and subject to change.
1550 * As such, this should not really be used by external programs for purposes
1551 * other than debugging.
1553 int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
1554 char *buf, size_t buflen);
1557 * p2p_peer_known - Check whether P2P peer is known
1558 * @p2p: P2P module context from p2p_init()
1559 * @addr: P2P Device Address of the peer
1560 * Returns: 1 if the specified device is in the P2P peer table or 0 if not
1562 int p2p_peer_known(struct p2p_data *p2p, const u8 *addr);
1565 * p2p_set_client_discoverability - Set client discoverability capability
1566 * @p2p: P2P module context from p2p_init()
1567 * @enabled: Whether client discoverability will be enabled
1569 * This function can be used to disable (and re-enable) client discoverability.
1570 * This capability is enabled by default and should not be disabled in normal
1571 * use cases, i.e., this is mainly for testing purposes.
1573 void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled);
1576 * p2p_set_managed_oper - Set managed P2P Device operations capability
1577 * @p2p: P2P module context from p2p_init()
1578 * @enabled: Whether managed P2P Device operations will be enabled
1580 void p2p_set_managed_oper(struct p2p_data *p2p, int enabled);
1582 int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel);
1584 int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len);
1586 int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
1588 int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
1591 void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr);
1594 * p2p_set_cross_connect - Set cross connection capability
1595 * @p2p: P2P module context from p2p_init()
1596 * @enabled: Whether cross connection will be enabled
1598 void p2p_set_cross_connect(struct p2p_data *p2p, int enabled);
1600 int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr);
1603 * p2p_set_intra_bss_dist - Set intra BSS distribution
1604 * @p2p: P2P module context from p2p_init()
1605 * @enabled: Whether intra BSS distribution will be enabled
1607 void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled);
1610 * p2p_supported_freq - Check whether channel is supported for P2P
1611 * @p2p: P2P module context from p2p_init()
1612 * @freq: Channel frequency in MHz
1613 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
1615 int p2p_supported_freq(struct p2p_data *p2p, unsigned int freq);
1617 void p2p_update_channel_list(struct p2p_data *p2p, struct p2p_channels *chan);
1620 * p2p_set_best_channels - Update best channel information
1621 * @p2p: P2P module context from p2p_init()
1622 * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band
1623 * @freq_5: Frequency (MHz) of best channel in 5 GHz band
1624 * @freq_overall: Frequency (MHz) of best channel overall
1626 void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
1629 const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p);
1632 * p2p_get_group_num_members - Get number of members in group
1633 * @group: P2P group context from p2p_group_init()
1634 * Returns: Number of members in the group
1636 unsigned int p2p_get_group_num_members(struct p2p_group *group);
1639 * p2p_iterate_group_members - Iterate group members
1640 * @group: P2P group context from p2p_group_init()
1641 * @next: iteration pointer, must be a pointer to a void * that is set to %NULL
1642 * on the first call and not modified later
1643 * Returns: A P2P Interface Address for each call and %NULL for no more members
1645 const u8 * p2p_iterate_group_members(struct p2p_group *group, void **next);
1648 * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group
1649 * @group: P2P group context from p2p_group_init()
1650 * @addr: P2P Interface Address of the client
1651 * Returns: P2P Device Address of the client if found or %NULL if no match
1654 const u8 * p2p_group_get_dev_addr(struct p2p_group *group, const u8 *addr);
1657 * p2p_group_is_client_connected - Check whether a specific client is connected
1658 * @group: P2P group context from p2p_group_init()
1659 * @addr: P2P Device Address of the client
1660 * Returns: 1 if client is connected or 0 if not
1662 int p2p_group_is_client_connected(struct p2p_group *group, const u8 *dev_addr);
1665 * p2p_get_peer_found - Get P2P peer info structure of a found peer
1666 * @p2p: P2P module context from p2p_init()
1667 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1668 * @next: Whether to select the peer entry following the one indicated by addr
1669 * Returns: The first P2P peer info available or %NULL if no such peer exists
1671 const struct p2p_peer_info *
1672 p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next);
1675 * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions
1676 * @p2p: P2P module context from p2p_init()
1678 void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p);
1681 * p2p_add_wps_vendor_extension - Add a WPS vendor extension
1682 * @p2p: P2P module context from p2p_init()
1683 * @vendor_ext: The vendor extensions to add
1684 * Returns: 0 on success, -1 on failure
1686 * The wpabuf structures in the array are owned by the P2P
1687 * module after this call.
1689 int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
1690 const struct wpabuf *vendor_ext);
1693 * p2p_set_oper_channel - Set the P2P operating channel
1694 * @p2p: P2P module context from p2p_init()
1695 * @op_reg_class: Operating regulatory class to set
1696 * @op_channel: operating channel to set
1697 * @cfg_op_channel : Whether op_channel is hardcoded in configuration
1698 * Returns: 0 on success, -1 on failure
1700 int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
1701 int cfg_op_channel);
1704 * p2p_set_pref_chan - Set P2P preferred channel list
1705 * @p2p: P2P module context from p2p_init()
1706 * @num_pref_chan: Number of entries in pref_chan list
1707 * @pref_chan: Preferred channels or %NULL to remove preferences
1708 * Returns: 0 on success, -1 on failure
1710 int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan,
1711 const struct p2p_channel *pref_chan);
1714 * p2p_in_progress - Check whether a P2P operation is progress
1715 * @p2p: P2P module context from p2p_init()
1716 * Returns: 0 if P2P module is idle or 1 if an operation is in progress
1718 int p2p_in_progress(struct p2p_data *p2p);
1722 * p2p_search_in_progress - Check whether a P2P SEARCH is in progress
1723 * @p2p: P2P module context from p2p_init()
1724 * Returns: 0 if P2P module is idle or 1 if an operation is in progress
1726 int p2p_search_in_progress(struct p2p_data *p2p);
1729 * p2p_search_pending - Check whether there is a deferred P2P SEARCH
1730 * @p2p: P2P module context from p2p_init()
1731 * Returns: 0 if there is no deferred P2P search or 1 if there is one
1733 int p2p_search_pending(struct p2p_data *p2p);
1737 * p2p_other_scan_completed - Notify completion of non-P2P scan
1738 * @p2p: P2P module context from p2p_init()
1739 * Returns: 0 if P2P module is idle or 1 if an operation was started
1741 int p2p_other_scan_completed(struct p2p_data *p2p);
1743 const char * p2p_wps_method_text(enum p2p_wps_method method);
1746 * p2p_set_config_timeout - Set local config timeouts
1747 * @p2p: P2P module context from p2p_init()
1748 * @go_timeout: Time in 10 ms units it takes to start the GO mode
1749 * @client_timeout: Time in 10 ms units it takes to start the client mode
1751 void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout,
1754 void p2p_increase_search_delay(struct p2p_data *p2p, unsigned int delay);
1756 int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie);
1757 int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie);
1758 int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie);
1759 int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie);
1760 int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie);
1761 int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie);
1762 int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie);
1763 int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie);
1764 int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem);
1765 int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem);
1766 int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p,
1767 const struct wpabuf *elem);
1768 struct wpabuf * wifi_display_encaps(struct wpabuf *subelems);