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
81 * ssid - SSID of the group
86 * ssid_len - Length of SSID in octets
91 * passphrase - WPA2-Personal passphrase for the group (GO only)
96 * peer_device_addr - P2P Device Address of the peer
98 u8 peer_device_addr[ETH_ALEN];
101 * peer_interface_addr - P2P Interface Address of the peer
103 u8 peer_interface_addr[ETH_ALEN];
106 * wps_method - WPS method to be used during provisioning
108 enum p2p_wps_method wps_method;
110 #define P2P_MAX_CHANNELS 50
113 * freq_list - Zero-terminated list of possible operational channels
115 int freq_list[P2P_MAX_CHANNELS];
118 * persistent_group - Whether the group should be made persistent
120 * 1 = persistent group without persistent reconnect
121 * 2 = persistent group with persistent reconnect
123 int persistent_group;
126 * peer_config_timeout - Peer configuration timeout (in 10 msec units)
128 unsigned int peer_config_timeout;
136 P2P_SCAN_SOCIAL_PLUS_ONE
139 #define P2P_MAX_WPS_VENDOR_EXT 10
142 * struct p2p_peer_info - P2P peer information
144 struct p2p_peer_info {
146 * p2p_device_addr - P2P Device Address of the peer
148 u8 p2p_device_addr[ETH_ALEN];
151 * pri_dev_type - Primary Device Type
156 * device_name - Device Name (0..32 octets encoded in UTF-8)
158 char device_name[33];
161 * manufacturer - Manufacturer (0..64 octets encoded in UTF-8)
163 char manufacturer[65];
166 * model_name - Model Name (0..32 octets encoded in UTF-8)
171 * model_number - Model Number (0..32 octets encoded in UTF-8)
173 char model_number[33];
176 * serial_number - Serial Number (0..32 octets encoded in UTF-8)
178 char serial_number[33];
181 * level - Signal level
186 * config_methods - WPS Configuration Methods
191 * dev_capab - Device Capabilities
196 * group_capab - Group Capabilities
201 * wps_sec_dev_type_list - WPS secondary device type list
203 * This list includes from 0 to 16 Secondary Device Types as indicated
204 * by wps_sec_dev_type_list_len (8 * number of types).
206 u8 wps_sec_dev_type_list[128];
209 * wps_sec_dev_type_list_len - Length of secondary device type list
211 size_t wps_sec_dev_type_list_len;
213 struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT];
216 * wfd_subelems - Wi-Fi Display subelements from WFD IE(s)
218 struct wpabuf *wfd_subelems;
221 enum p2p_prov_disc_status {
222 P2P_PROV_DISC_SUCCESS,
223 P2P_PROV_DISC_TIMEOUT,
224 P2P_PROV_DISC_REJECTED,
233 * struct p2p_config - P2P configuration
235 * This configuration is provided to the P2P module during initialization with
240 * country - Country code to use in P2P operations
245 * reg_class - Regulatory class for own listen channel
250 * channel - Own listen channel
255 * Regulatory class for own operational channel
260 * op_channel - Own operational channel
265 * cfg_op_channel - Whether op_channel is hardcoded in configuration
270 * channels - Own supported regulatory classes and channels
272 * List of supposerted channels per regulatory class. The regulatory
273 * classes are defined in IEEE Std 802.11-2007 Annex J and the
274 * numbering of the clases depends on the configured country code.
276 struct p2p_channels channels;
279 * num_pref_chan - Number of pref_chan entries
281 unsigned int num_pref_chan;
284 * pref_chan - Preferred channels for GO Negotiation
286 struct p2p_channel *pref_chan;
289 * pri_dev_type - Primary Device Type (see WPS)
294 * P2P_SEC_DEVICE_TYPES - Maximum number of secondary device types
296 #define P2P_SEC_DEVICE_TYPES 5
299 * sec_dev_type - Optional secondary device types
301 u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8];
304 * num_sec_dev_types - Number of sec_dev_type entries
306 size_t num_sec_dev_types;
309 * dev_addr - P2P Device Address
311 u8 dev_addr[ETH_ALEN];
314 * dev_name - Device Name
327 * concurrent_operations - Whether concurrent operations are supported
329 int concurrent_operations;
332 * max_peers - Maximum number of discovered peers to remember
334 * If more peers are discovered, older entries will be removed to make
335 * room for the new ones.
340 * p2p_intra_bss - Intra BSS communication is supported
345 * ssid_postfix - Postfix data to add to the SSID
347 * This data will be added to the end of the SSID after the
348 * DIRECT-<random two octets> prefix.
350 u8 ssid_postfix[32 - 9];
353 * ssid_postfix_len - Length of the ssid_postfix data
355 size_t ssid_postfix_len;
358 * msg_ctx - Context to use with wpa_msg() calls
363 * cb_ctx - Context to use with callback functions
368 /* Callbacks to request lower layer driver operations */
371 * p2p_scan - Request a P2P scan/search
372 * @ctx: Callback context from cb_ctx
374 * @freq: Specific frequency (MHz) to scan or 0 for no restriction
375 * @num_req_dev_types: Number of requested device types
376 * @req_dev_types: Array containing requested device types
377 * @dev_id: Device ID to search for or %NULL to find all devices
378 * @pw_id: Device Password ID
379 * Returns: 0 on success, -1 on failure
381 * This callback function is used to request a P2P scan or search
382 * operation to be completed. Type type argument specifies which type
383 * of scan is to be done. @P2P_SCAN_SOCIAL indicates that only the
384 * social channels (1, 6, 11) should be scanned. @P2P_SCAN_FULL
385 * indicates that all channels are to be scanned.
386 * @P2P_SCAN_SOCIAL_PLUS_ONE request scan of all the social channels
387 * plus one extra channel specified by freq.
389 * The full scan is used for the initial scan to find group owners from
390 * all. The other types are used during search phase scan of the social
391 * channels (with potential variation if the Listen channel of the
392 * target peer is known or if other channels are scanned in steps).
394 * The scan results are returned after this call by calling
395 * p2p_scan_res_handler() for each scan result that has a P2P IE and
396 * then calling p2p_scan_res_handled() to indicate that all scan
397 * results have been indicated.
399 int (*p2p_scan)(void *ctx, enum p2p_scan_type type, int freq,
400 unsigned int num_req_dev_types,
401 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id);
404 * send_probe_resp - Transmit a Probe Response frame
405 * @ctx: Callback context from cb_ctx
406 * @buf: Probe Response frame (including the header and body)
407 * Returns: 0 on success, -1 on failure
409 * This function is used to reply to Probe Request frames that were
410 * indicated with a call to p2p_probe_req_rx(). The response is to be
411 * sent on the same channel or to be dropped if the driver is not
412 * anymore listening to Probe Request frames.
414 * Alternatively, the responsibility for building the Probe Response
415 * frames in Listen state may be in another system component in which
416 * case this function need to be implemented (i.e., the function
417 * pointer can be %NULL). The WPS and P2P IEs to be added for Probe
418 * Response frames in such a case are available from the
419 * start_listen() callback. It should be noted that the received Probe
420 * Request frames must be indicated by calling p2p_probe_req_rx() even
421 * if this send_probe_resp() is not used.
423 int (*send_probe_resp)(void *ctx, const struct wpabuf *buf);
426 * send_action - Transmit an Action frame
427 * @ctx: Callback context from cb_ctx
428 * @freq: Frequency in MHz for the channel on which to transmit
429 * @dst: Destination MAC address (Address 1)
430 * @src: Source MAC address (Address 2)
431 * @bssid: BSSID (Address 3)
432 * @buf: Frame body (starting from Category field)
433 * @len: Length of buf in octets
434 * @wait_time: How many msec to wait for a response frame
435 * Returns: 0 on success, -1 on failure
437 * The Action frame may not be transmitted immediately and the status
438 * of the transmission must be reported by calling
439 * p2p_send_action_cb() once the frame has either been transmitted or
440 * it has been dropped due to excessive retries or other failure to
443 int (*send_action)(void *ctx, unsigned int freq, const u8 *dst,
444 const u8 *src, const u8 *bssid, const u8 *buf,
445 size_t len, unsigned int wait_time);
448 * send_action_done - Notify that Action frame sequence was completed
449 * @ctx: Callback context from cb_ctx
451 * This function is called when the Action frame sequence that was
452 * started with send_action() has been completed, i.e., when there is
453 * no need to wait for a response from the destination peer anymore.
455 void (*send_action_done)(void *ctx);
458 * start_listen - Start Listen state
459 * @ctx: Callback context from cb_ctx
460 * @freq: Frequency of the listen channel in MHz
461 * @duration: Duration for the Listen state in milliseconds
462 * @probe_resp_ie: IE(s) to be added to Probe Response frames
463 * Returns: 0 on success, -1 on failure
465 * This Listen state may not start immediately since the driver may
466 * have other pending operations to complete first. Once the Listen
467 * state has started, p2p_listen_cb() must be called to notify the P2P
468 * module. Once the Listen state is stopped, p2p_listen_end() must be
469 * called to notify the P2P module that the driver is not in the Listen
472 * If the send_probe_resp() is not used for generating the response,
473 * the IEs from probe_resp_ie need to be added to the end of the Probe
474 * Response frame body. If send_probe_resp() is used, the probe_resp_ie
475 * information can be ignored.
477 int (*start_listen)(void *ctx, unsigned int freq,
478 unsigned int duration,
479 const struct wpabuf *probe_resp_ie);
481 * stop_listen - Stop Listen state
482 * @ctx: Callback context from cb_ctx
484 * This callback can be used to stop a Listen state operation that was
485 * previously requested with start_listen().
487 void (*stop_listen)(void *ctx);
490 * get_noa - Get current Notice of Absence attribute payload
491 * @ctx: Callback context from cb_ctx
492 * @interface_addr: P2P Interface Address of the GO
493 * @buf: Buffer for returning NoA
494 * @buf_len: Buffer length in octets
495 * Returns: Number of octets used in buf, 0 to indicate no NoA is being
496 * advertized, or -1 on failure
498 * This function is used to fetch the current Notice of Absence
499 * attribute value from GO.
501 int (*get_noa)(void *ctx, const u8 *interface_addr, u8 *buf,
504 /* Callbacks to notify events to upper layer management entity */
507 * dev_found - Notification of a found P2P Device
508 * @ctx: Callback context from cb_ctx
509 * @addr: Source address of the message triggering this notification
510 * @info: P2P peer information
511 * @new_device: Inform if the peer is newly found
513 * This callback is used to notify that a new P2P Device has been
514 * found. This may happen, e.g., during Search state based on scan
515 * results or during Listen state based on receive Probe Request and
516 * Group Owner Negotiation Request.
518 void (*dev_found)(void *ctx, const u8 *addr,
519 const struct p2p_peer_info *info,
523 * dev_lost - Notification of a lost P2P Device
524 * @ctx: Callback context from cb_ctx
525 * @dev_addr: P2P Device Address of the lost P2P Device
527 * This callback is used to notify that a P2P Device has been deleted.
529 void (*dev_lost)(void *ctx, const u8 *dev_addr);
532 * go_neg_req_rx - Notification of a receive GO Negotiation Request
533 * @ctx: Callback context from cb_ctx
534 * @src: Source address of the message triggering this notification
535 * @dev_passwd_id: WPS Device Password ID
537 * This callback is used to notify that a P2P Device is requesting
538 * group owner negotiation with us, but we do not have all the
539 * necessary information to start GO Negotiation. This indicates that
540 * the local user has not authorized the connection yet by providing a
541 * PIN or PBC button press. This information can be provided with a
542 * call to p2p_connect().
544 void (*go_neg_req_rx)(void *ctx, const u8 *src, u16 dev_passwd_id);
547 * go_neg_completed - Notification of GO Negotiation results
548 * @ctx: Callback context from cb_ctx
549 * @res: GO Negotiation results
551 * This callback is used to notify that Group Owner Negotiation has
552 * been completed. Non-zero struct p2p_go_neg_results::status indicates
553 * failed negotiation. In case of success, this function is responsible
554 * for creating a new group interface (or using the existing interface
555 * depending on driver features), setting up the group interface in
556 * proper mode based on struct p2p_go_neg_results::role_go and
557 * initializing WPS provisioning either as a Registrar (if GO) or as an
558 * Enrollee. Successful WPS provisioning must be indicated by calling
559 * p2p_wps_success_cb(). The callee is responsible for timing out group
560 * formation if WPS provisioning cannot be completed successfully
563 void (*go_neg_completed)(void *ctx, struct p2p_go_neg_results *res);
566 * sd_request - Callback on Service Discovery Request
567 * @ctx: Callback context from cb_ctx
568 * @freq: Frequency (in MHz) of the channel
569 * @sa: Source address of the request
570 * @dialog_token: Dialog token
571 * @update_indic: Service Update Indicator from the source of request
572 * @tlvs: P2P Service Request TLV(s)
573 * @tlvs_len: Length of tlvs buffer in octets
575 * This callback is used to indicate reception of a service discovery
576 * request. Response to the query must be indicated by calling
577 * p2p_sd_response() with the context information from the arguments to
578 * this callback function.
580 * This callback handler can be set to %NULL to indicate that service
581 * discovery is not supported.
583 void (*sd_request)(void *ctx, int freq, const u8 *sa, u8 dialog_token,
584 u16 update_indic, const u8 *tlvs, size_t tlvs_len);
587 * sd_response - Callback on Service Discovery Response
588 * @ctx: Callback context from cb_ctx
589 * @sa: Source address of the request
590 * @update_indic: Service Update Indicator from the source of response
591 * @tlvs: P2P Service Response TLV(s)
592 * @tlvs_len: Length of tlvs buffer in octets
594 * This callback is used to indicate reception of a service discovery
595 * response. This callback handler can be set to %NULL if no service
596 * discovery requests are used. The information provided with this call
597 * is replies to the queries scheduled with p2p_sd_request().
599 void (*sd_response)(void *ctx, const u8 *sa, u16 update_indic,
600 const u8 *tlvs, size_t tlvs_len);
603 * prov_disc_req - Callback on Provisiong Discovery Request
604 * @ctx: Callback context from cb_ctx
605 * @peer: Source address of the request
606 * @config_methods: Requested WPS Config Method
607 * @dev_addr: P2P Device Address of the found P2P Device
608 * @pri_dev_type: Primary Device Type
609 * @dev_name: Device Name
610 * @supp_config_methods: Supported configuration Methods
611 * @dev_capab: Device Capabilities
612 * @group_capab: Group Capabilities
613 * @group_id: P2P Group ID (or %NULL if not included)
614 * @group_id_len: Length of P2P Group ID
616 * This callback is used to indicate reception of a Provision Discovery
617 * Request frame that the P2P module accepted.
619 void (*prov_disc_req)(void *ctx, const u8 *peer, u16 config_methods,
620 const u8 *dev_addr, const u8 *pri_dev_type,
621 const char *dev_name, u16 supp_config_methods,
622 u8 dev_capab, u8 group_capab,
623 const u8 *group_id, size_t group_id_len);
626 * prov_disc_resp - Callback on Provisiong Discovery Response
627 * @ctx: Callback context from cb_ctx
628 * @peer: Source address of the response
629 * @config_methods: Value from p2p_prov_disc_req() or 0 on failure
631 * This callback is used to indicate reception of a Provision Discovery
632 * Response frame for a pending request scheduled with
633 * p2p_prov_disc_req(). This callback handler can be set to %NULL if
634 * provision discovery is not used.
636 void (*prov_disc_resp)(void *ctx, const u8 *peer, u16 config_methods);
639 * prov_disc_fail - Callback on Provision Discovery failure
640 * @ctx: Callback context from cb_ctx
641 * @peer: Source address of the response
642 * @status: Cause of failure, will not be %P2P_PROV_DISC_SUCCESS
644 * This callback is used to indicate either a failure or no response
645 * to an earlier provision discovery request.
647 * This callback handler can be set to %NULL if provision discovery
648 * is not used or failures do not need to be indicated.
650 void (*prov_disc_fail)(void *ctx, const u8 *peer,
651 enum p2p_prov_disc_status status);
654 * invitation_process - Optional callback for processing Invitations
655 * @ctx: Callback context from cb_ctx
656 * @sa: Source address of the Invitation Request
657 * @bssid: P2P Group BSSID from the request or %NULL if not included
658 * @go_dev_addr: GO Device Address from P2P Group ID
659 * @ssid: SSID from P2P Group ID
660 * @ssid_len: Length of ssid buffer in octets
661 * @go: Variable for returning whether the local end is GO in the group
662 * @group_bssid: Buffer for returning P2P Group BSSID (if local end GO)
663 * @force_freq: Variable for returning forced frequency for the group
664 * @persistent_group: Whether this is an invitation to reinvoke a
665 * persistent group (instead of invitation to join an active
667 * Returns: Status code (P2P_SC_*)
669 * This optional callback can be used to implement persistent reconnect
670 * by allowing automatic restarting of persistent groups without user
671 * interaction. If this callback is not implemented (i.e., is %NULL),
672 * the received Invitation Request frames are replied with
673 * %P2P_SC_REQ_RECEIVED status and indicated to upper layer with the
674 * invitation_result() callback.
676 * If the requested parameters are acceptable and the group is known,
677 * %P2P_SC_SUCCESS may be returned. If the requested group is unknown,
678 * %P2P_SC_FAIL_UNKNOWN_GROUP should be returned. %P2P_SC_REQ_RECEIVED
679 * can be returned if there is not enough data to provide immediate
680 * response, i.e., if some sort of user interaction is needed. The
681 * invitation_received() callback will be called in that case
682 * immediately after this call.
684 u8 (*invitation_process)(void *ctx, const u8 *sa, const u8 *bssid,
685 const u8 *go_dev_addr, const u8 *ssid,
686 size_t ssid_len, int *go, u8 *group_bssid,
687 int *force_freq, int persistent_group);
690 * invitation_received - Callback on Invitation Request RX
691 * @ctx: Callback context from cb_ctx
692 * @sa: Source address of the Invitation Request
693 * @bssid: P2P Group BSSID or %NULL if not received
694 * @ssid: SSID of the group
695 * @ssid_len: Length of ssid in octets
696 * @go_dev_addr: GO Device Address
697 * @status: Response Status
698 * @op_freq: Operational frequency for the group
700 * This callback is used to indicate sending of an Invitation Response
701 * for a received Invitation Request. If status == 0 (success), the
702 * upper layer code is responsible for starting the group. status == 1
703 * indicates need to get user authorization for the group. Other status
704 * values indicate that the invitation request was rejected.
706 void (*invitation_received)(void *ctx, const u8 *sa, const u8 *bssid,
707 const u8 *ssid, size_t ssid_len,
708 const u8 *go_dev_addr, u8 status,
712 * invitation_result - Callback on Invitation result
713 * @ctx: Callback context from cb_ctx
714 * @status: Negotiation result (Status Code)
715 * @bssid: P2P Group BSSID or %NULL if not received
717 * This callback is used to indicate result of an Invitation procedure
718 * started with a call to p2p_invite(). The indicated status code is
719 * the value received from the peer in Invitation Response with 0
720 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a
721 * local failure in transmitting the Invitation Request.
723 void (*invitation_result)(void *ctx, int status, const u8 *bssid);
726 * go_connected - Check whether we are connected to a GO
727 * @ctx: Callback context from cb_ctx
728 * @dev_addr: P2P Device Address of a GO
729 * Returns: 1 if we are connected as a P2P client to the specified GO
732 int (*go_connected)(void *ctx, const u8 *dev_addr);
736 /* P2P module initialization/deinitialization */
739 * p2p_init - Initialize P2P module
740 * @cfg: P2P module configuration
741 * Returns: Pointer to private data or %NULL on failure
743 * This function is used to initialize global P2P module context (one per
744 * device). The P2P module will keep a copy of the configuration data, so the
745 * caller does not need to maintain this structure. However, the callback
746 * functions and the context parameters to them must be kept available until
747 * the P2P module is deinitialized with p2p_deinit().
749 struct p2p_data * p2p_init(const struct p2p_config *cfg);
752 * p2p_deinit - Deinitialize P2P module
753 * @p2p: P2P module context from p2p_init()
755 void p2p_deinit(struct p2p_data *p2p);
758 * p2p_flush - Flush P2P module state
759 * @p2p: P2P module context from p2p_init()
761 * This command removes the P2P module state like peer device entries.
763 void p2p_flush(struct p2p_data *p2p);
766 * p2p_unauthorize - Unauthorize the specified peer device
767 * @p2p: P2P module context from p2p_init()
768 * @addr: P2P peer entry to be unauthorized
769 * Returns: 0 on success, -1 on failure
771 * This command removes any connection authorization from the specified P2P
772 * peer device address. This can be used, e.g., to cancel effect of a previous
773 * p2p_authorize() or p2p_connect() call that has not yet resulted in completed
776 int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr);
779 * p2p_set_dev_name - Set device name
780 * @p2p: P2P module context from p2p_init()
781 * Returns: 0 on success, -1 on failure
783 * This function can be used to update the P2P module configuration with
784 * information that was not available at the time of the p2p_init() call.
786 int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name);
788 int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer);
789 int p2p_set_model_name(struct p2p_data *p2p, const char *model_name);
790 int p2p_set_model_number(struct p2p_data *p2p, const char *model_number);
791 int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number);
793 void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods);
794 void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid);
797 * p2p_set_pri_dev_type - Set primary device type
798 * @p2p: P2P module context from p2p_init()
799 * Returns: 0 on success, -1 on failure
801 * This function can be used to update the P2P module configuration with
802 * information that was not available at the time of the p2p_init() call.
804 int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type);
807 * p2p_set_sec_dev_types - Set secondary device types
808 * @p2p: P2P module context from p2p_init()
809 * Returns: 0 on success, -1 on failure
811 * This function can be used to update the P2P module configuration with
812 * information that was not available at the time of the p2p_init() call.
814 int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
815 size_t num_dev_types);
817 int p2p_set_country(struct p2p_data *p2p, const char *country);
820 /* Commands from upper layer management entity */
822 enum p2p_discovery_type {
823 P2P_FIND_START_WITH_FULL,
824 P2P_FIND_ONLY_SOCIAL,
829 * p2p_find - Start P2P Find (Device Discovery)
830 * @p2p: P2P module context from p2p_init()
831 * @timeout: Timeout for find operation in seconds or 0 for no timeout
832 * @type: Device Discovery type
833 * @num_req_dev_types: Number of requested device types
834 * @req_dev_types: Requested device types array, must be an array
835 * containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no
836 * requested device types.
837 * @dev_id: Device ID to search for or %NULL to find all devices
838 * @search_delay: Extra delay in milliseconds between search iterations
839 * Returns: 0 on success, -1 on failure
841 int p2p_find(struct p2p_data *p2p, unsigned int timeout,
842 enum p2p_discovery_type type,
843 unsigned int num_req_dev_types, const u8 *req_dev_types,
844 const u8 *dev_id, unsigned int search_delay);
847 * p2p_stop_find - Stop P2P Find (Device Discovery)
848 * @p2p: P2P module context from p2p_init()
850 void p2p_stop_find(struct p2p_data *p2p);
853 * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq
854 * @p2p: P2P module context from p2p_init()
855 * @freq: Frequency in MHz for next operation
857 * This is like p2p_stop_find(), but Listen state is not stopped if we are
858 * already on the same frequency.
860 void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq);
863 * p2p_listen - Start P2P Listen state for specified duration
864 * @p2p: P2P module context from p2p_init()
865 * @timeout: Listen state duration in milliseconds
866 * Returns: 0 on success, -1 on failure
868 * This function can be used to request the P2P module to keep the device
869 * discoverable on the listen channel for an extended set of time. At least in
870 * its current form, this is mainly used for testing purposes and may not be of
871 * much use for normal P2P operations.
873 int p2p_listen(struct p2p_data *p2p, unsigned int timeout);
876 * p2p_connect - Start P2P group formation (GO negotiation)
877 * @p2p: P2P module context from p2p_init()
878 * @peer_addr: MAC address of the peer P2P client
879 * @wps_method: WPS method to be used in provisioning
880 * @go_intent: Local GO intent value (1..15)
881 * @own_interface_addr: Intended interface address to use with the group
882 * @force_freq: The only allowed channel frequency in MHz or 0
883 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
884 * persistent group without persistent reconnect, 2 = persistent group with
885 * persistent reconnect)
886 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
888 * @force_ssid_len: Length of $force_ssid buffer
889 * @pd_before_go_neg: Whether to send Provision Discovery prior to GO
890 * Negotiation as an interoperability workaround when initiating group
892 * Returns: 0 on success, -1 on failure
894 int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
895 enum p2p_wps_method wps_method,
896 int go_intent, const u8 *own_interface_addr,
897 unsigned int force_freq, int persistent_group,
898 const u8 *force_ssid, size_t force_ssid_len,
899 int pd_before_go_neg);
902 * p2p_authorize - Authorize P2P group formation (GO negotiation)
903 * @p2p: P2P module context from p2p_init()
904 * @peer_addr: MAC address of the peer P2P client
905 * @wps_method: WPS method to be used in provisioning
906 * @go_intent: Local GO intent value (1..15)
907 * @own_interface_addr: Intended interface address to use with the group
908 * @force_freq: The only allowed channel frequency in MHz or 0
909 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
910 * persistent group without persistent reconnect, 2 = persistent group with
911 * persistent reconnect)
912 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
914 * @force_ssid_len: Length of $force_ssid buffer
915 * Returns: 0 on success, -1 on failure
917 * This is like p2p_connect(), but the actual group negotiation is not
918 * initiated automatically, i.e., the other end is expected to do that.
920 int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
921 enum p2p_wps_method wps_method,
922 int go_intent, const u8 *own_interface_addr,
923 unsigned int force_freq, int persistent_group,
924 const u8 *force_ssid, size_t force_ssid_len);
927 * p2p_reject - Reject peer device (explicitly block connection attempts)
928 * @p2p: P2P module context from p2p_init()
929 * @peer_addr: MAC address of the peer P2P client
930 * Returns: 0 on success, -1 on failure
932 int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr);
935 * p2p_prov_disc_req - Send Provision Discovery Request
936 * @p2p: P2P module context from p2p_init()
937 * @peer_addr: MAC address of the peer P2P client
938 * @config_methods: WPS Config Methods value (only one bit set)
939 * @join: Whether this is used by a client joining an active group
940 * @force_freq: Forced TX frequency for the frame (mainly for the join case)
941 * Returns: 0 on success, -1 on failure
943 * This function can be used to request a discovered P2P peer to display a PIN
944 * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us
945 * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame
946 * is transmitted once immediately and if no response is received, the frame
947 * will be sent again whenever the target device is discovered during device
948 * dsicovery (start with a p2p_find() call). Response from the peer is
949 * indicated with the p2p_config::prov_disc_resp() callback.
951 int p2p_prov_disc_req(struct p2p_data *p2p, const u8 *peer_addr,
952 u16 config_methods, int join, int force_freq);
955 * p2p_sd_request - Schedule a service discovery query
956 * @p2p: P2P module context from p2p_init()
957 * @dst: Destination peer or %NULL to apply for all peers
958 * @tlvs: P2P Service Query TLV(s)
959 * Returns: Reference to the query or %NULL on failure
961 * Response to the query is indicated with the p2p_config::sd_response()
964 void * p2p_sd_request(struct p2p_data *p2p, const u8 *dst,
965 const struct wpabuf *tlvs);
967 #ifdef CONFIG_WIFI_DISPLAY
968 void * p2p_sd_request_wfd(struct p2p_data *p2p, const u8 *dst,
969 const struct wpabuf *tlvs);
970 #endif /* CONFIG_WIFI_DISPLAY */
973 * p2p_sd_cancel_request - Cancel a pending service discovery query
974 * @p2p: P2P module context from p2p_init()
975 * @req: Query reference from p2p_sd_request()
976 * Returns: 0 if request for cancelled; -1 if not found
978 int p2p_sd_cancel_request(struct p2p_data *p2p, void *req);
981 * p2p_sd_response - Send response to a service discovery query
982 * @p2p: P2P module context from p2p_init()
983 * @freq: Frequency from p2p_config::sd_request() callback
984 * @dst: Destination address from p2p_config::sd_request() callback
985 * @dialog_token: Dialog token from p2p_config::sd_request() callback
986 * @resp_tlvs: P2P Service Response TLV(s)
988 * This function is called as a response to the request indicated with
989 * p2p_config::sd_request() callback.
991 void p2p_sd_response(struct p2p_data *p2p, int freq, const u8 *dst,
992 u8 dialog_token, const struct wpabuf *resp_tlvs);
995 * p2p_sd_service_update - Indicate a change in local services
996 * @p2p: P2P module context from p2p_init()
998 * This function needs to be called whenever there is a change in availability
999 * of the local services. This will increment the Service Update Indicator
1000 * value which will be used in SD Request and Response frames.
1002 void p2p_sd_service_update(struct p2p_data *p2p);
1005 enum p2p_invite_role {
1007 P2P_INVITE_ROLE_ACTIVE_GO,
1008 P2P_INVITE_ROLE_CLIENT
1012 * p2p_invite - Invite a P2P Device into a group
1013 * @p2p: P2P module context from p2p_init()
1014 * @peer: Device Address of the peer P2P Device
1015 * @role: Local role in the group
1016 * @bssid: Group BSSID or %NULL if not known
1018 * @ssid_len: Length of ssid in octets
1019 * @force_freq: The only allowed channel frequency in MHz or 0
1020 * @go_dev_addr: Forced GO Device Address or %NULL if none
1021 * @persistent_group: Whether this is to reinvoke a persistent group
1022 * Returns: 0 on success, -1 on failure
1024 int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role,
1025 const u8 *bssid, const u8 *ssid, size_t ssid_len,
1026 unsigned int force_freq, const u8 *go_dev_addr,
1027 int persistent_group);
1030 * p2p_presence_req - Request GO presence
1031 * @p2p: P2P module context from p2p_init()
1032 * @go_interface_addr: GO P2P Interface Address
1033 * @own_interface_addr: Own P2P Interface Address for this group
1034 * @freq: Group operating frequence (in MHz)
1035 * @duration1: Preferred presence duration in microseconds
1036 * @interval1: Preferred presence interval in microseconds
1037 * @duration2: Acceptable presence duration in microseconds
1038 * @interval2: Acceptable presence interval in microseconds
1039 * Returns: 0 on success, -1 on failure
1041 * If both duration and interval values are zero, the parameter pair is not
1042 * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0).
1044 int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
1045 const u8 *own_interface_addr, unsigned int freq,
1046 u32 duration1, u32 interval1, u32 duration2,
1050 * p2p_ext_listen - Set Extended Listen Timing
1051 * @p2p: P2P module context from p2p_init()
1052 * @freq: Group operating frequence (in MHz)
1053 * @period: Availability period in milliseconds (1-65535; 0 to disable)
1054 * @interval: Availability interval in milliseconds (1-65535; 0 to disable)
1055 * Returns: 0 on success, -1 on failure
1057 * This function can be used to enable or disable (period = interval = 0)
1058 * Extended Listen Timing. When enabled, the P2P Device will become
1059 * discoverable (go into Listen State) every @interval milliseconds for at
1060 * least @period milliseconds.
1062 int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
1063 unsigned int interval);
1065 /* Event notifications from upper layer management operations */
1068 * p2p_wps_success_cb - Report successfully completed WPS provisioning
1069 * @p2p: P2P module context from p2p_init()
1070 * @mac_addr: Peer address
1072 * This function is used to report successfully completed WPS provisioning
1073 * during group formation in both GO/Registrar and client/Enrollee roles.
1075 void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr);
1078 * p2p_group_formation_failed - Report failed WPS provisioning
1079 * @p2p: P2P module context from p2p_init()
1081 * This function is used to report failed group formation. This can happen
1082 * either due to failed WPS provisioning or due to 15 second timeout during
1083 * the provisioning phase.
1085 void p2p_group_formation_failed(struct p2p_data *p2p);
1088 * p2p_get_provisioning_info - Get any stored provisioning info
1089 * @p2p: P2P module context from p2p_init()
1090 * @addr: Peer P2P Device Address
1091 * Returns: WPS provisioning information (WPS config method) or 0 if no
1092 * information is available
1094 * This function is used to retrieve stored WPS provisioning info for the given
1097 u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr);
1100 * p2p_clear_provisioning_info - Clear any stored provisioning info
1101 * @p2p: P2P module context from p2p_init()
1102 * @iface_addr: Peer P2P Device Address
1104 * This function is used to clear stored WPS provisioning info for the given
1107 void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr);
1110 /* Event notifications from lower layer driver operations */
1113 * enum p2p_probe_req_status
1115 * @P2P_PREQ_MALFORMED: frame was not well-formed
1116 * @P2P_PREQ_NOT_LISTEN: device isn't in listen state, frame ignored
1117 * @P2P_PREQ_NOT_P2P: frame was not a P2P probe request
1118 * @P2P_PREQ_P2P_NOT_PROCESSED: frame was P2P but wasn't processed
1119 * @P2P_PREQ_P2P_PROCESSED: frame has been processed by P2P
1121 enum p2p_probe_req_status {
1123 P2P_PREQ_NOT_LISTEN,
1125 P2P_PREQ_NOT_PROCESSED,
1130 * p2p_probe_req_rx - Report reception of a Probe Request frame
1131 * @p2p: P2P module context from p2p_init()
1132 * @addr: Source MAC address
1133 * @dst: Destination MAC address if available or %NULL
1134 * @bssid: BSSID if available or %NULL
1135 * @ie: Information elements from the Probe Request frame body
1136 * @ie_len: Length of ie buffer in octets
1137 * Returns: value indicating the type and status of the probe request
1139 enum p2p_probe_req_status
1140 p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
1141 const u8 *bssid, const u8 *ie, size_t ie_len);
1144 * p2p_rx_action - Report received Action frame
1145 * @p2p: P2P module context from p2p_init()
1146 * @da: Destination address of the received Action frame
1147 * @sa: Source address of the received Action frame
1148 * @bssid: Address 3 of the received Action frame
1149 * @category: Category of the received Action frame
1150 * @data: Action frame body after the Category field
1151 * @len: Length of the data buffer in octets
1152 * @freq: Frequency (in MHz) on which the frame was received
1154 void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1155 const u8 *bssid, u8 category,
1156 const u8 *data, size_t len, int freq);
1159 * p2p_scan_res_handler - Indicate a P2P scan results
1160 * @p2p: P2P module context from p2p_init()
1161 * @bssid: BSSID of the scan result
1162 * @freq: Frequency of the channel on which the device was found in MHz
1163 * @level: Signal level (signal strength of the received Beacon/Probe Response
1165 * @ies: Pointer to IEs from the scan result
1166 * @ies_len: Length of the ies buffer
1167 * Returns: 0 to continue or 1 to stop scan result indication
1169 * This function is called to indicate a scan result entry with P2P IE from a
1170 * scan requested with struct p2p_config::p2p_scan(). This can be called during
1171 * the actual scan process (i.e., whenever a new device is found) or as a
1172 * sequence of calls after the full scan has been completed. The former option
1173 * can result in optimized operations, but may not be supported by all
1174 * driver/firmware designs. The ies buffer need to include at least the P2P IE,
1175 * but it is recommended to include all IEs received from the device. The
1176 * caller does not need to check that the IEs contain a P2P IE before calling
1177 * this function since frames will be filtered internally if needed.
1179 * This function will return 1 if it wants to stop scan result iteration (and
1180 * scan in general if it is still in progress). This is used to allow faster
1181 * start of a pending operation, e.g., to start a pending GO negotiation.
1183 int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
1184 int level, const u8 *ies, size_t ies_len);
1187 * p2p_scan_res_handled - Indicate end of scan results
1188 * @p2p: P2P module context from p2p_init()
1190 * This function is called to indicate that all P2P scan results from a scan
1191 * have been reported with zero or more calls to p2p_scan_res_handler(). This
1192 * function must be called as a response to successful
1193 * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler()
1194 * calls stopped iteration.
1196 void p2p_scan_res_handled(struct p2p_data *p2p);
1198 enum p2p_send_action_result {
1199 P2P_SEND_ACTION_SUCCESS /* Frame was send and acknowledged */,
1200 P2P_SEND_ACTION_NO_ACK /* Frame was sent, but not acknowledged */,
1201 P2P_SEND_ACTION_FAILED /* Frame was not sent due to a failure */
1205 * p2p_send_action_cb - Notify TX status of an Action frame
1206 * @p2p: P2P module context from p2p_init()
1207 * @freq: Channel frequency in MHz
1208 * @dst: Destination MAC address (Address 1)
1209 * @src: Source MAC address (Address 2)
1210 * @bssid: BSSID (Address 3)
1211 * @result: Result of the transmission attempt
1213 * This function is used to indicate the result of an Action frame transmission
1214 * that was requested with struct p2p_config::send_action() callback.
1216 void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
1217 const u8 *src, const u8 *bssid,
1218 enum p2p_send_action_result result);
1221 * p2p_listen_cb - Indicate the start of a requested Listen state
1222 * @p2p: P2P module context from p2p_init()
1223 * @freq: Listen channel frequency in MHz
1224 * @duration: Duration for the Listen state in milliseconds
1226 * This function is used to indicate that a Listen state requested with
1227 * struct p2p_config::start_listen() callback has started.
1229 void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
1230 unsigned int duration);
1233 * p2p_listen_end - Indicate the end of a requested Listen state
1234 * @p2p: P2P module context from p2p_init()
1235 * @freq: Listen channel frequency in MHz
1236 * Returns: 0 if no operations were started, 1 if an operation was started
1238 * This function is used to indicate that a Listen state requested with
1239 * struct p2p_config::start_listen() callback has ended.
1241 int p2p_listen_end(struct p2p_data *p2p, unsigned int freq);
1243 void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
1244 const u8 *ie, size_t ie_len);
1246 void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
1247 const u8 *ie, size_t ie_len);
1250 /* Per-group P2P state for GO */
1255 * struct p2p_group_config - P2P group configuration
1257 * This configuration is provided to the P2P module during initialization of
1258 * the per-group information with p2p_group_init().
1260 struct p2p_group_config {
1262 * persistent_group - Whether the group is persistent
1263 * 0 = not a persistent group
1264 * 1 = persistent group without persistent reconnect
1265 * 2 = persistent group with persistent reconnect
1267 int persistent_group;
1270 * interface_addr - P2P Interface Address of the group
1272 u8 interface_addr[ETH_ALEN];
1275 * max_clients - Maximum number of clients in the group
1277 unsigned int max_clients;
1285 * ssid_len - Length of SSID
1290 * cb_ctx - Context to use with callback functions
1295 * ie_update - Notification of IE update
1296 * @ctx: Callback context from cb_ctx
1297 * @beacon_ies: P2P IE for Beacon frames or %NULL if no change
1298 * @proberesp_ies: P2P Ie for Probe Response frames
1300 * P2P module uses this callback function to notify whenever the P2P IE
1301 * in Beacon or Probe Response frames should be updated based on group
1304 * The callee is responsible for freeing the returned buffer(s) with
1307 void (*ie_update)(void *ctx, struct wpabuf *beacon_ies,
1308 struct wpabuf *proberesp_ies);
1311 * idle_update - Notification of changes in group idle state
1312 * @ctx: Callback context from cb_ctx
1313 * @idle: Whether the group is idle (no associated stations)
1315 void (*idle_update)(void *ctx, int idle);
1319 * p2p_group_init - Initialize P2P group
1320 * @p2p: P2P module context from p2p_init()
1321 * @config: P2P group configuration (will be freed by p2p_group_deinit())
1322 * Returns: Pointer to private data or %NULL on failure
1324 * This function is used to initialize per-group P2P module context. Currently,
1325 * this is only used to manage GO functionality and P2P clients do not need to
1326 * create an instance of this per-group information.
1328 struct p2p_group * p2p_group_init(struct p2p_data *p2p,
1329 struct p2p_group_config *config);
1332 * p2p_group_deinit - Deinitialize P2P group
1333 * @group: P2P group context from p2p_group_init()
1335 void p2p_group_deinit(struct p2p_group *group);
1338 * p2p_group_notif_assoc - Notification of P2P client association with GO
1339 * @group: P2P group context from p2p_group_init()
1340 * @addr: Interface address of the P2P client
1341 * @ie: IEs from the (Re)association Request frame
1342 * @len: Length of the ie buffer in octets
1343 * Returns: 0 on success, -1 on failure
1345 int p2p_group_notif_assoc(struct p2p_group *group, const u8 *addr,
1346 const u8 *ie, size_t len);
1349 * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response
1350 * @group: P2P group context from p2p_group_init()
1351 * @status: Status value (P2P_SC_SUCCESS if association succeeded)
1352 * Returns: P2P IE for (Re)association Response or %NULL on failure
1354 * The caller is responsible for freeing the returned buffer with
1357 struct wpabuf * p2p_group_assoc_resp_ie(struct p2p_group *group, u8 status);
1360 * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO
1361 * @group: P2P group context from p2p_group_init()
1362 * @addr: Interface address of the P2P client
1364 void p2p_group_notif_disassoc(struct p2p_group *group, const u8 *addr);
1367 * p2p_group_notif_formation_done - Notification of completed group formation
1368 * @group: P2P group context from p2p_group_init()
1370 void p2p_group_notif_formation_done(struct p2p_group *group);
1373 * p2p_group_notif_noa - Notification of NoA change
1374 * @group: P2P group context from p2p_group_init()
1375 * @noa: Notice of Absence attribute payload, %NULL if none
1376 * @noa_len: Length of noa buffer in octets
1377 * Returns: 0 on success, -1 on failure
1379 * Notify the P2P group management about a new NoA contents. This will be
1380 * inserted into the P2P IEs in Beacon and Probe Response frames with rest of
1381 * the group information.
1383 int p2p_group_notif_noa(struct p2p_group *group, const u8 *noa,
1387 * p2p_group_match_dev_type - Match device types in group with requested type
1388 * @group: P2P group context from p2p_group_init()
1389 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1390 * Returns: 1 on match, 0 on mismatch
1392 * This function can be used to match the Requested Device Type attribute in
1393 * WPS IE with the device types of a group member for deciding whether a GO
1394 * should reply to a Probe Request frame. Match will be reported if the WPS IE
1395 * is not requested any specific device type.
1397 int p2p_group_match_dev_type(struct p2p_group *group, struct wpabuf *wps);
1400 * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id
1402 int p2p_group_match_dev_id(struct p2p_group *group, struct wpabuf *p2p);
1405 * p2p_group_go_discover - Send GO Discoverability Request to a group client
1406 * @group: P2P group context from p2p_group_init()
1407 * Returns: 0 on success (frame scheduled); -1 if client was not found
1409 int p2p_group_go_discover(struct p2p_group *group, const u8 *dev_id,
1410 const u8 *searching_dev, int rx_freq);
1413 /* Generic helper functions */
1416 * p2p_ie_text - Build text format description of P2P IE
1418 * @buf: Buffer for returning text
1419 * @end: Pointer to the end of the buf area
1420 * Returns: Number of octets written to the buffer or -1 on failure
1422 * This function can be used to parse P2P IE contents into text format
1423 * field=value lines.
1425 int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end);
1428 * p2p_scan_result_text - Build text format description of P2P IE
1429 * @ies: Information elements from scan results
1430 * @ies_len: ies buffer length in octets
1431 * @buf: Buffer for returning text
1432 * @end: Pointer to the end of the buf area
1433 * Returns: Number of octets written to the buffer or -1 on failure
1435 * This function can be used to parse P2P IE contents into text format
1436 * field=value lines.
1438 int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end);
1441 * p2p_parse_dev_addr_in_p2p_ie - Parse P2P Device Address from a concatenated
1444 * @dev_addr: Buffer for returning P2P Device Address
1445 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1447 int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr);
1450 * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s)
1451 * @ies: Information elements from scan results
1452 * @ies_len: ies buffer length in octets
1453 * @dev_addr: Buffer for returning P2P Device Address
1454 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1456 int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr);
1459 * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame
1460 * @p2p: P2P module context from p2p_init()
1462 * @buf: Buffer for writing the P2P IE
1463 * @len: Maximum buf length in octets
1464 * @p2p_group: Whether this is for association with a P2P GO
1465 * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none
1466 * Returns: Number of octets written into buf or -1 on failure
1468 int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
1469 size_t len, int p2p_group, struct wpabuf *p2p_ie);
1472 * p2p_scan_ie - Build P2P IE for Probe Request
1473 * @p2p: P2P module context from p2p_init()
1474 * @ies: Buffer for writing P2P IE
1475 * @dev_id: Device ID to search for or %NULL for any
1477 void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id);
1480 * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie
1481 * @p2p: P2P module context from p2p_init()
1482 * Returns: Number of octets that p2p_scan_ie() may add to the buffer
1484 size_t p2p_scan_ie_buf_len(struct p2p_data *p2p);
1487 * p2p_go_params - Generate random P2P group parameters
1488 * @p2p: P2P module context from p2p_init()
1489 * @params: Buffer for parameters
1490 * Returns: 0 on success, -1 on failure
1492 int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params);
1495 * p2p_get_group_capab - Get Group Capability from P2P IE data
1496 * @p2p_ie: P2P IE(s) contents
1497 * Returns: Group Capability
1499 u8 p2p_get_group_capab(const struct wpabuf *p2p_ie);
1502 * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection
1503 * @p2p_ie: P2P IE(s) contents
1504 * Returns: 0 if cross connection is allow, 1 if not
1506 int p2p_get_cross_connect_disallowed(const struct wpabuf *p2p_ie);
1509 * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data
1510 * @p2p_ie: P2P IE(s) contents
1511 * Returns: Pointer to P2P Device Address or %NULL if not included
1513 const u8 * p2p_get_go_dev_addr(const struct wpabuf *p2p_ie);
1516 * p2p_get_peer_info - Get P2P peer information
1517 * @p2p: P2P module context from p2p_init()
1518 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1519 * @next: Whether to select the peer entry following the one indicated by addr
1520 * Returns: Pointer to peer info or %NULL if not found
1522 const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
1523 const u8 *addr, int next);
1526 * p2p_get_peer_info_txt - Get internal P2P peer information in text format
1527 * @info: Pointer to P2P peer info from p2p_get_peer_info()
1528 * @buf: Buffer for returning text
1529 * @buflen: Maximum buffer length
1530 * Returns: Number of octets written to the buffer or -1 on failure
1532 * Note: This information is internal to the P2P module and subject to change.
1533 * As such, this should not really be used by external programs for purposes
1534 * other than debugging.
1536 int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
1537 char *buf, size_t buflen);
1540 * p2p_peer_known - Check whether P2P peer is known
1541 * @p2p: P2P module context from p2p_init()
1542 * @addr: P2P Device Address of the peer
1543 * Returns: 1 if the specified device is in the P2P peer table or 0 if not
1545 int p2p_peer_known(struct p2p_data *p2p, const u8 *addr);
1548 * p2p_set_client_discoverability - Set client discoverability capability
1549 * @p2p: P2P module context from p2p_init()
1550 * @enabled: Whether client discoverability will be enabled
1552 * This function can be used to disable (and re-enable) client discoverability.
1553 * This capability is enabled by default and should not be disabled in normal
1554 * use cases, i.e., this is mainly for testing purposes.
1556 void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled);
1559 * p2p_set_managed_oper - Set managed P2P Device operations capability
1560 * @p2p: P2P module context from p2p_init()
1561 * @enabled: Whether managed P2P Device operations will be enabled
1563 void p2p_set_managed_oper(struct p2p_data *p2p, int enabled);
1565 int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel);
1567 int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len);
1569 int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
1571 int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
1574 void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr);
1577 * p2p_set_cross_connect - Set cross connection capability
1578 * @p2p: P2P module context from p2p_init()
1579 * @enabled: Whether cross connection will be enabled
1581 void p2p_set_cross_connect(struct p2p_data *p2p, int enabled);
1583 int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr);
1586 * p2p_set_intra_bss_dist - Set intra BSS distribution
1587 * @p2p: P2P module context from p2p_init()
1588 * @enabled: Whether intra BSS distribution will be enabled
1590 void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled);
1593 * p2p_supported_freq - Check whether channel is supported for P2P
1594 * @p2p: P2P module context from p2p_init()
1595 * @freq: Channel frequency in MHz
1596 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
1598 int p2p_supported_freq(struct p2p_data *p2p, unsigned int freq);
1600 void p2p_update_channel_list(struct p2p_data *p2p, struct p2p_channels *chan);
1603 * p2p_set_best_channels - Update best channel information
1604 * @p2p: P2P module context from p2p_init()
1605 * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band
1606 * @freq_5: Frequency (MHz) of best channel in 5 GHz band
1607 * @freq_overall: Frequency (MHz) of best channel overall
1609 void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
1612 const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p);
1615 * p2p_get_group_num_members - Get number of members in group
1616 * @group: P2P group context from p2p_group_init()
1617 * Returns: Number of members in the group
1619 unsigned int p2p_get_group_num_members(struct p2p_group *group);
1622 * p2p_iterate_group_members - Iterate group members
1623 * @group: P2P group context from p2p_group_init()
1624 * @next: iteration pointer, must be a pointer to a void * that is set to %NULL
1625 * on the first call and not modified later
1626 * Returns: A P2P Interface Address for each call and %NULL for no more members
1628 const u8 * p2p_iterate_group_members(struct p2p_group *group, void **next);
1631 * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group
1632 * @group: P2P group context from p2p_group_init()
1633 * @addr: P2P Interface Address of the client
1634 * Returns: P2P Device Address of the client if found or %NULL if no match
1637 const u8 * p2p_group_get_dev_addr(struct p2p_group *group, const u8 *addr);
1640 * p2p_group_is_client_connected - Check whether a specific client is connected
1641 * @group: P2P group context from p2p_group_init()
1642 * @addr: P2P Device Address of the client
1643 * Returns: 1 if client is connected or 0 if not
1645 int p2p_group_is_client_connected(struct p2p_group *group, const u8 *dev_addr);
1648 * p2p_get_peer_found - Get P2P peer info structure of a found peer
1649 * @p2p: P2P module context from p2p_init()
1650 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1651 * @next: Whether to select the peer entry following the one indicated by addr
1652 * Returns: The first P2P peer info available or %NULL if no such peer exists
1654 const struct p2p_peer_info *
1655 p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next);
1658 * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions
1659 * @p2p: P2P module context from p2p_init()
1661 void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p);
1664 * p2p_add_wps_vendor_extension - Add a WPS vendor extension
1665 * @p2p: P2P module context from p2p_init()
1666 * @vendor_ext: The vendor extensions to add
1667 * Returns: 0 on success, -1 on failure
1669 * The wpabuf structures in the array are owned by the P2P
1670 * module after this call.
1672 int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
1673 const struct wpabuf *vendor_ext);
1676 * p2p_set_oper_channel - Set the P2P operating channel
1677 * @p2p: P2P module context from p2p_init()
1678 * @op_reg_class: Operating regulatory class to set
1679 * @op_channel: operating channel to set
1680 * @cfg_op_channel : Whether op_channel is hardcoded in configuration
1681 * Returns: 0 on success, -1 on failure
1683 int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
1684 int cfg_op_channel);
1687 * p2p_set_pref_chan - Set P2P preferred channel list
1688 * @p2p: P2P module context from p2p_init()
1689 * @num_pref_chan: Number of entries in pref_chan list
1690 * @pref_chan: Preferred channels or %NULL to remove preferences
1691 * Returns: 0 on success, -1 on failure
1693 int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan,
1694 const struct p2p_channel *pref_chan);
1697 * p2p_in_progress - Check whether a P2P operation is progress
1698 * @p2p: P2P module context from p2p_init()
1699 * Returns: 0 if P2P module is idle or 1 if an operation is in progress
1701 int p2p_in_progress(struct p2p_data *p2p);
1704 * p2p_other_scan_completed - Notify completion of non-P2P scan
1705 * @p2p: P2P module context from p2p_init()
1706 * Returns: 0 if P2P module is idle or 1 if an operation was started
1708 int p2p_other_scan_completed(struct p2p_data *p2p);
1710 const char * p2p_wps_method_text(enum p2p_wps_method method);
1713 * p2p_set_config_timeout - Set local config timeouts
1714 * @p2p: P2P module context from p2p_init()
1715 * @go_timeout: Time in 10 ms units it takes to start the GO mode
1716 * @client_timeout: Time in 10 ms units it takes to start the client mode
1718 void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout,
1721 void p2p_increase_search_delay(struct p2p_data *p2p, unsigned int delay);
1723 int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie);
1724 int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie);
1725 int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie);
1726 int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie);
1727 int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie);
1728 int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie);
1729 int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie);
1730 int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie);
1731 int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem);
1732 int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem);
1733 int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p,
1734 const struct wpabuf *elem);
1735 struct wpabuf * wifi_display_encaps(struct wpabuf *subelems);