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 enum p2p_prov_disc_status {
217 P2P_PROV_DISC_SUCCESS,
218 P2P_PROV_DISC_TIMEOUT,
219 P2P_PROV_DISC_REJECTED,
228 * struct p2p_config - P2P configuration
230 * This configuration is provided to the P2P module during initialization with
235 * country - Country code to use in P2P operations
240 * reg_class - Regulatory class for own listen channel
245 * channel - Own listen channel
250 * Regulatory class for own operational channel
255 * op_channel - Own operational channel
260 * cfg_op_channel - Whether op_channel is hardcoded in configuration
265 * channels - Own supported regulatory classes and channels
267 * List of supposerted channels per regulatory class. The regulatory
268 * classes are defined in IEEE Std 802.11-2007 Annex J and the
269 * numbering of the clases depends on the configured country code.
271 struct p2p_channels channels;
274 * num_pref_chan - Number of pref_chan entries
276 unsigned int num_pref_chan;
279 * pref_chan - Preferred channels for GO Negotiation
281 struct p2p_channel *pref_chan;
284 * pri_dev_type - Primary Device Type (see WPS)
289 * P2P_SEC_DEVICE_TYPES - Maximum number of secondary device types
291 #define P2P_SEC_DEVICE_TYPES 5
294 * sec_dev_type - Optional secondary device types
296 u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8];
299 * num_sec_dev_types - Number of sec_dev_type entries
301 size_t num_sec_dev_types;
304 * dev_addr - P2P Device Address
306 u8 dev_addr[ETH_ALEN];
309 * dev_name - Device Name
322 * concurrent_operations - Whether concurrent operations are supported
324 int concurrent_operations;
327 * max_peers - Maximum number of discovered peers to remember
329 * If more peers are discovered, older entries will be removed to make
330 * room for the new ones.
335 * p2p_intra_bss - Intra BSS communication is supported
340 * ssid_postfix - Postfix data to add to the SSID
342 * This data will be added to the end of the SSID after the
343 * DIRECT-<random two octets> prefix.
345 u8 ssid_postfix[32 - 9];
348 * ssid_postfix_len - Length of the ssid_postfix data
350 size_t ssid_postfix_len;
353 * msg_ctx - Context to use with wpa_msg() calls
358 * cb_ctx - Context to use with callback functions
363 /* Callbacks to request lower layer driver operations */
366 * p2p_scan - Request a P2P scan/search
367 * @ctx: Callback context from cb_ctx
369 * @freq: Specific frequency (MHz) to scan or 0 for no restriction
370 * @num_req_dev_types: Number of requested device types
371 * @req_dev_types: Array containing requested device types
372 * @dev_id: Device ID to search for or %NULL to find all devices
373 * @pw_id: Device Password ID
374 * Returns: 0 on success, -1 on failure
376 * This callback function is used to request a P2P scan or search
377 * operation to be completed. Type type argument specifies which type
378 * of scan is to be done. @P2P_SCAN_SOCIAL indicates that only the
379 * social channels (1, 6, 11) should be scanned. @P2P_SCAN_FULL
380 * indicates that all channels are to be scanned.
381 * @P2P_SCAN_SOCIAL_PLUS_ONE request scan of all the social channels
382 * plus one extra channel specified by freq.
384 * The full scan is used for the initial scan to find group owners from
385 * all. The other types are used during search phase scan of the social
386 * channels (with potential variation if the Listen channel of the
387 * target peer is known or if other channels are scanned in steps).
389 * The scan results are returned after this call by calling
390 * p2p_scan_res_handler() for each scan result that has a P2P IE and
391 * then calling p2p_scan_res_handled() to indicate that all scan
392 * results have been indicated.
394 int (*p2p_scan)(void *ctx, enum p2p_scan_type type, int freq,
395 unsigned int num_req_dev_types,
396 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id);
399 * send_probe_resp - Transmit a Probe Response frame
400 * @ctx: Callback context from cb_ctx
401 * @buf: Probe Response frame (including the header and body)
402 * Returns: 0 on success, -1 on failure
404 * This function is used to reply to Probe Request frames that were
405 * indicated with a call to p2p_probe_req_rx(). The response is to be
406 * sent on the same channel or to be dropped if the driver is not
407 * anymore listening to Probe Request frames.
409 * Alternatively, the responsibility for building the Probe Response
410 * frames in Listen state may be in another system component in which
411 * case this function need to be implemented (i.e., the function
412 * pointer can be %NULL). The WPS and P2P IEs to be added for Probe
413 * Response frames in such a case are available from the
414 * start_listen() callback. It should be noted that the received Probe
415 * Request frames must be indicated by calling p2p_probe_req_rx() even
416 * if this send_probe_resp() is not used.
418 int (*send_probe_resp)(void *ctx, const struct wpabuf *buf);
421 * send_action - Transmit an Action frame
422 * @ctx: Callback context from cb_ctx
423 * @freq: Frequency in MHz for the channel on which to transmit
424 * @dst: Destination MAC address (Address 1)
425 * @src: Source MAC address (Address 2)
426 * @bssid: BSSID (Address 3)
427 * @buf: Frame body (starting from Category field)
428 * @len: Length of buf in octets
429 * @wait_time: How many msec to wait for a response frame
430 * Returns: 0 on success, -1 on failure
432 * The Action frame may not be transmitted immediately and the status
433 * of the transmission must be reported by calling
434 * p2p_send_action_cb() once the frame has either been transmitted or
435 * it has been dropped due to excessive retries or other failure to
438 int (*send_action)(void *ctx, unsigned int freq, const u8 *dst,
439 const u8 *src, const u8 *bssid, const u8 *buf,
440 size_t len, unsigned int wait_time);
443 * send_action_done - Notify that Action frame sequence was completed
444 * @ctx: Callback context from cb_ctx
446 * This function is called when the Action frame sequence that was
447 * started with send_action() has been completed, i.e., when there is
448 * no need to wait for a response from the destination peer anymore.
450 void (*send_action_done)(void *ctx);
453 * start_listen - Start Listen state
454 * @ctx: Callback context from cb_ctx
455 * @freq: Frequency of the listen channel in MHz
456 * @duration: Duration for the Listen state in milliseconds
457 * @probe_resp_ie: IE(s) to be added to Probe Response frames
458 * Returns: 0 on success, -1 on failure
460 * This Listen state may not start immediately since the driver may
461 * have other pending operations to complete first. Once the Listen
462 * state has started, p2p_listen_cb() must be called to notify the P2P
463 * module. Once the Listen state is stopped, p2p_listen_end() must be
464 * called to notify the P2P module that the driver is not in the Listen
467 * If the send_probe_resp() is not used for generating the response,
468 * the IEs from probe_resp_ie need to be added to the end of the Probe
469 * Response frame body. If send_probe_resp() is used, the probe_resp_ie
470 * information can be ignored.
472 int (*start_listen)(void *ctx, unsigned int freq,
473 unsigned int duration,
474 const struct wpabuf *probe_resp_ie);
476 * stop_listen - Stop Listen state
477 * @ctx: Callback context from cb_ctx
479 * This callback can be used to stop a Listen state operation that was
480 * previously requested with start_listen().
482 void (*stop_listen)(void *ctx);
485 * get_noa - Get current Notice of Absence attribute payload
486 * @ctx: Callback context from cb_ctx
487 * @interface_addr: P2P Interface Address of the GO
488 * @buf: Buffer for returning NoA
489 * @buf_len: Buffer length in octets
490 * Returns: Number of octets used in buf, 0 to indicate no NoA is being
491 * advertized, or -1 on failure
493 * This function is used to fetch the current Notice of Absence
494 * attribute value from GO.
496 int (*get_noa)(void *ctx, const u8 *interface_addr, u8 *buf,
499 /* Callbacks to notify events to upper layer management entity */
502 * dev_found - Notification of a found P2P Device
503 * @ctx: Callback context from cb_ctx
504 * @addr: Source address of the message triggering this notification
505 * @info: P2P peer information
506 * @new_device: Inform if the peer is newly found
508 * This callback is used to notify that a new P2P Device has been
509 * found. This may happen, e.g., during Search state based on scan
510 * results or during Listen state based on receive Probe Request and
511 * Group Owner Negotiation Request.
513 void (*dev_found)(void *ctx, const u8 *addr,
514 const struct p2p_peer_info *info,
518 * dev_lost - Notification of a lost P2P Device
519 * @ctx: Callback context from cb_ctx
520 * @dev_addr: P2P Device Address of the lost P2P Device
522 * This callback is used to notify that a P2P Device has been deleted.
524 void (*dev_lost)(void *ctx, const u8 *dev_addr);
527 * go_neg_req_rx - Notification of a receive GO Negotiation Request
528 * @ctx: Callback context from cb_ctx
529 * @src: Source address of the message triggering this notification
530 * @dev_passwd_id: WPS Device Password ID
532 * This callback is used to notify that a P2P Device is requesting
533 * group owner negotiation with us, but we do not have all the
534 * necessary information to start GO Negotiation. This indicates that
535 * the local user has not authorized the connection yet by providing a
536 * PIN or PBC button press. This information can be provided with a
537 * call to p2p_connect().
539 void (*go_neg_req_rx)(void *ctx, const u8 *src, u16 dev_passwd_id);
542 * go_neg_completed - Notification of GO Negotiation results
543 * @ctx: Callback context from cb_ctx
544 * @res: GO Negotiation results
546 * This callback is used to notify that Group Owner Negotiation has
547 * been completed. Non-zero struct p2p_go_neg_results::status indicates
548 * failed negotiation. In case of success, this function is responsible
549 * for creating a new group interface (or using the existing interface
550 * depending on driver features), setting up the group interface in
551 * proper mode based on struct p2p_go_neg_results::role_go and
552 * initializing WPS provisioning either as a Registrar (if GO) or as an
553 * Enrollee. Successful WPS provisioning must be indicated by calling
554 * p2p_wps_success_cb(). The callee is responsible for timing out group
555 * formation if WPS provisioning cannot be completed successfully
558 void (*go_neg_completed)(void *ctx, struct p2p_go_neg_results *res);
561 * sd_request - Callback on Service Discovery Request
562 * @ctx: Callback context from cb_ctx
563 * @freq: Frequency (in MHz) of the channel
564 * @sa: Source address of the request
565 * @dialog_token: Dialog token
566 * @update_indic: Service Update Indicator from the source of request
567 * @tlvs: P2P Service Request TLV(s)
568 * @tlvs_len: Length of tlvs buffer in octets
570 * This callback is used to indicate reception of a service discovery
571 * request. Response to the query must be indicated by calling
572 * p2p_sd_response() with the context information from the arguments to
573 * this callback function.
575 * This callback handler can be set to %NULL to indicate that service
576 * discovery is not supported.
578 void (*sd_request)(void *ctx, int freq, const u8 *sa, u8 dialog_token,
579 u16 update_indic, const u8 *tlvs, size_t tlvs_len);
582 * sd_response - Callback on Service Discovery Response
583 * @ctx: Callback context from cb_ctx
584 * @sa: Source address of the request
585 * @update_indic: Service Update Indicator from the source of response
586 * @tlvs: P2P Service Response TLV(s)
587 * @tlvs_len: Length of tlvs buffer in octets
589 * This callback is used to indicate reception of a service discovery
590 * response. This callback handler can be set to %NULL if no service
591 * discovery requests are used. The information provided with this call
592 * is replies to the queries scheduled with p2p_sd_request().
594 void (*sd_response)(void *ctx, const u8 *sa, u16 update_indic,
595 const u8 *tlvs, size_t tlvs_len);
598 * prov_disc_req - Callback on Provisiong Discovery Request
599 * @ctx: Callback context from cb_ctx
600 * @peer: Source address of the request
601 * @config_methods: Requested WPS Config Method
602 * @dev_addr: P2P Device Address of the found P2P Device
603 * @pri_dev_type: Primary Device Type
604 * @dev_name: Device Name
605 * @supp_config_methods: Supported configuration Methods
606 * @dev_capab: Device Capabilities
607 * @group_capab: Group Capabilities
608 * @group_id: P2P Group ID (or %NULL if not included)
609 * @group_id_len: Length of P2P Group ID
611 * This callback is used to indicate reception of a Provision Discovery
612 * Request frame that the P2P module accepted.
614 void (*prov_disc_req)(void *ctx, const u8 *peer, u16 config_methods,
615 const u8 *dev_addr, const u8 *pri_dev_type,
616 const char *dev_name, u16 supp_config_methods,
617 u8 dev_capab, u8 group_capab,
618 const u8 *group_id, size_t group_id_len);
621 * prov_disc_resp - Callback on Provisiong Discovery Response
622 * @ctx: Callback context from cb_ctx
623 * @peer: Source address of the response
624 * @config_methods: Value from p2p_prov_disc_req() or 0 on failure
626 * This callback is used to indicate reception of a Provision Discovery
627 * Response frame for a pending request scheduled with
628 * p2p_prov_disc_req(). This callback handler can be set to %NULL if
629 * provision discovery is not used.
631 void (*prov_disc_resp)(void *ctx, const u8 *peer, u16 config_methods);
634 * prov_disc_fail - Callback on Provision Discovery failure
635 * @ctx: Callback context from cb_ctx
636 * @peer: Source address of the response
637 * @status: Cause of failure, will not be %P2P_PROV_DISC_SUCCESS
639 * This callback is used to indicate either a failure or no response
640 * to an earlier provision discovery request.
642 * This callback handler can be set to %NULL if provision discovery
643 * is not used or failures do not need to be indicated.
645 void (*prov_disc_fail)(void *ctx, const u8 *peer,
646 enum p2p_prov_disc_status status);
649 * invitation_process - Optional callback for processing Invitations
650 * @ctx: Callback context from cb_ctx
651 * @sa: Source address of the Invitation Request
652 * @bssid: P2P Group BSSID from the request or %NULL if not included
653 * @go_dev_addr: GO Device Address from P2P Group ID
654 * @ssid: SSID from P2P Group ID
655 * @ssid_len: Length of ssid buffer in octets
656 * @go: Variable for returning whether the local end is GO in the group
657 * @group_bssid: Buffer for returning P2P Group BSSID (if local end GO)
658 * @force_freq: Variable for returning forced frequency for the group
659 * @persistent_group: Whether this is an invitation to reinvoke a
660 * persistent group (instead of invitation to join an active
662 * Returns: Status code (P2P_SC_*)
664 * This optional callback can be used to implement persistent reconnect
665 * by allowing automatic restarting of persistent groups without user
666 * interaction. If this callback is not implemented (i.e., is %NULL),
667 * the received Invitation Request frames are replied with
668 * %P2P_SC_REQ_RECEIVED status and indicated to upper layer with the
669 * invitation_result() callback.
671 * If the requested parameters are acceptable and the group is known,
672 * %P2P_SC_SUCCESS may be returned. If the requested group is unknown,
673 * %P2P_SC_FAIL_UNKNOWN_GROUP should be returned. %P2P_SC_REQ_RECEIVED
674 * can be returned if there is not enough data to provide immediate
675 * response, i.e., if some sort of user interaction is needed. The
676 * invitation_received() callback will be called in that case
677 * immediately after this call.
679 u8 (*invitation_process)(void *ctx, const u8 *sa, const u8 *bssid,
680 const u8 *go_dev_addr, const u8 *ssid,
681 size_t ssid_len, int *go, u8 *group_bssid,
682 int *force_freq, int persistent_group);
685 * invitation_received - Callback on Invitation Request RX
686 * @ctx: Callback context from cb_ctx
687 * @sa: Source address of the Invitation Request
688 * @bssid: P2P Group BSSID or %NULL if not received
689 * @ssid: SSID of the group
690 * @ssid_len: Length of ssid in octets
691 * @go_dev_addr: GO Device Address
692 * @status: Response Status
693 * @op_freq: Operational frequency for the group
695 * This callback is used to indicate sending of an Invitation Response
696 * for a received Invitation Request. If status == 0 (success), the
697 * upper layer code is responsible for starting the group. status == 1
698 * indicates need to get user authorization for the group. Other status
699 * values indicate that the invitation request was rejected.
701 void (*invitation_received)(void *ctx, const u8 *sa, const u8 *bssid,
702 const u8 *ssid, size_t ssid_len,
703 const u8 *go_dev_addr, u8 status,
707 * invitation_result - Callback on Invitation result
708 * @ctx: Callback context from cb_ctx
709 * @status: Negotiation result (Status Code)
710 * @bssid: P2P Group BSSID or %NULL if not received
712 * This callback is used to indicate result of an Invitation procedure
713 * started with a call to p2p_invite(). The indicated status code is
714 * the value received from the peer in Invitation Response with 0
715 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a
716 * local failure in transmitting the Invitation Request.
718 void (*invitation_result)(void *ctx, int status, const u8 *bssid);
721 * go_connected - Check whether we are connected to a GO
722 * @ctx: Callback context from cb_ctx
723 * @dev_addr: P2P Device Address of a GO
724 * Returns: 1 if we are connected as a P2P client to the specified GO
727 int (*go_connected)(void *ctx, const u8 *dev_addr);
731 /* P2P module initialization/deinitialization */
734 * p2p_init - Initialize P2P module
735 * @cfg: P2P module configuration
736 * Returns: Pointer to private data or %NULL on failure
738 * This function is used to initialize global P2P module context (one per
739 * device). The P2P module will keep a copy of the configuration data, so the
740 * caller does not need to maintain this structure. However, the callback
741 * functions and the context parameters to them must be kept available until
742 * the P2P module is deinitialized with p2p_deinit().
744 struct p2p_data * p2p_init(const struct p2p_config *cfg);
747 * p2p_deinit - Deinitialize P2P module
748 * @p2p: P2P module context from p2p_init()
750 void p2p_deinit(struct p2p_data *p2p);
753 * p2p_flush - Flush P2P module state
754 * @p2p: P2P module context from p2p_init()
756 * This command removes the P2P module state like peer device entries.
758 void p2p_flush(struct p2p_data *p2p);
761 * p2p_unauthorize - Unauthorize the specified peer device
762 * @p2p: P2P module context from p2p_init()
763 * @addr: P2P peer entry to be unauthorized
764 * Returns: 0 on success, -1 on failure
766 * This command removes any connection authorization from the specified P2P
767 * peer device address. This can be used, e.g., to cancel effect of a previous
768 * p2p_authorize() or p2p_connect() call that has not yet resulted in completed
771 int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr);
774 * p2p_set_dev_name - Set device name
775 * @p2p: P2P module context from p2p_init()
776 * Returns: 0 on success, -1 on failure
778 * This function can be used to update the P2P module configuration with
779 * information that was not available at the time of the p2p_init() call.
781 int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name);
783 int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer);
784 int p2p_set_model_name(struct p2p_data *p2p, const char *model_name);
785 int p2p_set_model_number(struct p2p_data *p2p, const char *model_number);
786 int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number);
788 void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods);
789 void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid);
792 * p2p_set_pri_dev_type - Set primary device type
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_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type);
802 * p2p_set_sec_dev_types - Set secondary device types
803 * @p2p: P2P module context from p2p_init()
804 * Returns: 0 on success, -1 on failure
806 * This function can be used to update the P2P module configuration with
807 * information that was not available at the time of the p2p_init() call.
809 int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
810 size_t num_dev_types);
812 int p2p_set_country(struct p2p_data *p2p, const char *country);
815 /* Commands from upper layer management entity */
817 enum p2p_discovery_type {
818 P2P_FIND_START_WITH_FULL,
819 P2P_FIND_ONLY_SOCIAL,
824 * p2p_find - Start P2P Find (Device Discovery)
825 * @p2p: P2P module context from p2p_init()
826 * @timeout: Timeout for find operation in seconds or 0 for no timeout
827 * @type: Device Discovery type
828 * @num_req_dev_types: Number of requested device types
829 * @req_dev_types: Requested device types array, must be an array
830 * containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no
831 * requested device types.
832 * @dev_id: Device ID to search for or %NULL to find all devices
833 * @search_delay: Extra delay in milliseconds between search iterations
834 * Returns: 0 on success, -1 on failure
836 int p2p_find(struct p2p_data *p2p, unsigned int timeout,
837 enum p2p_discovery_type type,
838 unsigned int num_req_dev_types, const u8 *req_dev_types,
839 const u8 *dev_id, unsigned int search_delay);
842 * p2p_stop_find - Stop P2P Find (Device Discovery)
843 * @p2p: P2P module context from p2p_init()
845 void p2p_stop_find(struct p2p_data *p2p);
848 * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq
849 * @p2p: P2P module context from p2p_init()
850 * @freq: Frequency in MHz for next operation
852 * This is like p2p_stop_find(), but Listen state is not stopped if we are
853 * already on the same frequency.
855 void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq);
858 * p2p_listen - Start P2P Listen state for specified duration
859 * @p2p: P2P module context from p2p_init()
860 * @timeout: Listen state duration in milliseconds
861 * Returns: 0 on success, -1 on failure
863 * This function can be used to request the P2P module to keep the device
864 * discoverable on the listen channel for an extended set of time. At least in
865 * its current form, this is mainly used for testing purposes and may not be of
866 * much use for normal P2P operations.
868 int p2p_listen(struct p2p_data *p2p, unsigned int timeout);
871 * p2p_connect - Start P2P group formation (GO negotiation)
872 * @p2p: P2P module context from p2p_init()
873 * @peer_addr: MAC address of the peer P2P client
874 * @wps_method: WPS method to be used in provisioning
875 * @go_intent: Local GO intent value (1..15)
876 * @own_interface_addr: Intended interface address to use with the group
877 * @force_freq: The only allowed channel frequency in MHz or 0
878 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
879 * persistent group without persistent reconnect, 2 = persistent group with
880 * persistent reconnect)
881 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
883 * @force_ssid_len: Length of $force_ssid buffer
884 * @pd_before_go_neg: Whether to send Provision Discovery prior to GO
885 * Negotiation as an interoperability workaround when initiating group
887 * Returns: 0 on success, -1 on failure
889 int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
890 enum p2p_wps_method wps_method,
891 int go_intent, const u8 *own_interface_addr,
892 unsigned int force_freq, int persistent_group,
893 const u8 *force_ssid, size_t force_ssid_len,
894 int pd_before_go_neg);
897 * p2p_authorize - Authorize P2P group formation (GO negotiation)
898 * @p2p: P2P module context from p2p_init()
899 * @peer_addr: MAC address of the peer P2P client
900 * @wps_method: WPS method to be used in provisioning
901 * @go_intent: Local GO intent value (1..15)
902 * @own_interface_addr: Intended interface address to use with the group
903 * @force_freq: The only allowed channel frequency in MHz or 0
904 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
905 * persistent group without persistent reconnect, 2 = persistent group with
906 * persistent reconnect)
907 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
909 * @force_ssid_len: Length of $force_ssid buffer
910 * Returns: 0 on success, -1 on failure
912 * This is like p2p_connect(), but the actual group negotiation is not
913 * initiated automatically, i.e., the other end is expected to do that.
915 int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
916 enum p2p_wps_method wps_method,
917 int go_intent, const u8 *own_interface_addr,
918 unsigned int force_freq, int persistent_group,
919 const u8 *force_ssid, size_t force_ssid_len);
922 * p2p_reject - Reject peer device (explicitly block connection attempts)
923 * @p2p: P2P module context from p2p_init()
924 * @peer_addr: MAC address of the peer P2P client
925 * Returns: 0 on success, -1 on failure
927 int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr);
930 * p2p_prov_disc_req - Send Provision Discovery Request
931 * @p2p: P2P module context from p2p_init()
932 * @peer_addr: MAC address of the peer P2P client
933 * @config_methods: WPS Config Methods value (only one bit set)
934 * @join: Whether this is used by a client joining an active group
935 * @force_freq: Forced TX frequency for the frame (mainly for the join case)
936 * Returns: 0 on success, -1 on failure
938 * This function can be used to request a discovered P2P peer to display a PIN
939 * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us
940 * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame
941 * is transmitted once immediately and if no response is received, the frame
942 * will be sent again whenever the target device is discovered during device
943 * dsicovery (start with a p2p_find() call). Response from the peer is
944 * indicated with the p2p_config::prov_disc_resp() callback.
946 int p2p_prov_disc_req(struct p2p_data *p2p, const u8 *peer_addr,
947 u16 config_methods, int join, int force_freq);
950 * p2p_sd_request - Schedule a service discovery query
951 * @p2p: P2P module context from p2p_init()
952 * @dst: Destination peer or %NULL to apply for all peers
953 * @tlvs: P2P Service Query TLV(s)
954 * Returns: Reference to the query or %NULL on failure
956 * Response to the query is indicated with the p2p_config::sd_response()
959 void * p2p_sd_request(struct p2p_data *p2p, const u8 *dst,
960 const struct wpabuf *tlvs);
963 * p2p_sd_cancel_request - Cancel a pending service discovery query
964 * @p2p: P2P module context from p2p_init()
965 * @req: Query reference from p2p_sd_request()
966 * Returns: 0 if request for cancelled; -1 if not found
968 int p2p_sd_cancel_request(struct p2p_data *p2p, void *req);
971 * p2p_sd_response - Send response to a service discovery query
972 * @p2p: P2P module context from p2p_init()
973 * @freq: Frequency from p2p_config::sd_request() callback
974 * @dst: Destination address from p2p_config::sd_request() callback
975 * @dialog_token: Dialog token from p2p_config::sd_request() callback
976 * @resp_tlvs: P2P Service Response TLV(s)
978 * This function is called as a response to the request indicated with
979 * p2p_config::sd_request() callback.
981 void p2p_sd_response(struct p2p_data *p2p, int freq, const u8 *dst,
982 u8 dialog_token, const struct wpabuf *resp_tlvs);
985 * p2p_sd_service_update - Indicate a change in local services
986 * @p2p: P2P module context from p2p_init()
988 * This function needs to be called whenever there is a change in availability
989 * of the local services. This will increment the Service Update Indicator
990 * value which will be used in SD Request and Response frames.
992 void p2p_sd_service_update(struct p2p_data *p2p);
995 enum p2p_invite_role {
997 P2P_INVITE_ROLE_ACTIVE_GO,
998 P2P_INVITE_ROLE_CLIENT
1002 * p2p_invite - Invite a P2P Device into a group
1003 * @p2p: P2P module context from p2p_init()
1004 * @peer: Device Address of the peer P2P Device
1005 * @role: Local role in the group
1006 * @bssid: Group BSSID or %NULL if not known
1008 * @ssid_len: Length of ssid in octets
1009 * @force_freq: The only allowed channel frequency in MHz or 0
1010 * @go_dev_addr: Forced GO Device Address or %NULL if none
1011 * @persistent_group: Whether this is to reinvoke a persistent group
1012 * Returns: 0 on success, -1 on failure
1014 int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role,
1015 const u8 *bssid, const u8 *ssid, size_t ssid_len,
1016 unsigned int force_freq, const u8 *go_dev_addr,
1017 int persistent_group);
1020 * p2p_presence_req - Request GO presence
1021 * @p2p: P2P module context from p2p_init()
1022 * @go_interface_addr: GO P2P Interface Address
1023 * @own_interface_addr: Own P2P Interface Address for this group
1024 * @freq: Group operating frequence (in MHz)
1025 * @duration1: Preferred presence duration in microseconds
1026 * @interval1: Preferred presence interval in microseconds
1027 * @duration2: Acceptable presence duration in microseconds
1028 * @interval2: Acceptable presence interval in microseconds
1029 * Returns: 0 on success, -1 on failure
1031 * If both duration and interval values are zero, the parameter pair is not
1032 * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0).
1034 int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
1035 const u8 *own_interface_addr, unsigned int freq,
1036 u32 duration1, u32 interval1, u32 duration2,
1040 * p2p_ext_listen - Set Extended Listen Timing
1041 * @p2p: P2P module context from p2p_init()
1042 * @freq: Group operating frequence (in MHz)
1043 * @period: Availability period in milliseconds (1-65535; 0 to disable)
1044 * @interval: Availability interval in milliseconds (1-65535; 0 to disable)
1045 * Returns: 0 on success, -1 on failure
1047 * This function can be used to enable or disable (period = interval = 0)
1048 * Extended Listen Timing. When enabled, the P2P Device will become
1049 * discoverable (go into Listen State) every @interval milliseconds for at
1050 * least @period milliseconds.
1052 int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
1053 unsigned int interval);
1055 /* Event notifications from upper layer management operations */
1058 * p2p_wps_success_cb - Report successfully completed WPS provisioning
1059 * @p2p: P2P module context from p2p_init()
1060 * @mac_addr: Peer address
1062 * This function is used to report successfully completed WPS provisioning
1063 * during group formation in both GO/Registrar and client/Enrollee roles.
1065 void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr);
1068 * p2p_group_formation_failed - Report failed WPS provisioning
1069 * @p2p: P2P module context from p2p_init()
1071 * This function is used to report failed group formation. This can happen
1072 * either due to failed WPS provisioning or due to 15 second timeout during
1073 * the provisioning phase.
1075 void p2p_group_formation_failed(struct p2p_data *p2p);
1078 * p2p_get_provisioning_info - Get any stored provisioning info
1079 * @p2p: P2P module context from p2p_init()
1080 * @addr: Peer P2P Device Address
1081 * Returns: WPS provisioning information (WPS config method) or 0 if no
1082 * information is available
1084 * This function is used to retrieve stored WPS provisioning info for the given
1087 u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr);
1090 * p2p_clear_provisioning_info - Clear any stored provisioning info
1091 * @p2p: P2P module context from p2p_init()
1092 * @iface_addr: Peer P2P Device Address
1094 * This function is used to clear stored WPS provisioning info for the given
1097 void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr);
1100 /* Event notifications from lower layer driver operations */
1103 * enum p2p_probe_req_status
1105 * @P2P_PREQ_MALFORMED: frame was not well-formed
1106 * @P2P_PREQ_NOT_LISTEN: device isn't in listen state, frame ignored
1107 * @P2P_PREQ_NOT_P2P: frame was not a P2P probe request
1108 * @P2P_PREQ_P2P_NOT_PROCESSED: frame was P2P but wasn't processed
1109 * @P2P_PREQ_P2P_PROCESSED: frame has been processed by P2P
1111 enum p2p_probe_req_status {
1113 P2P_PREQ_NOT_LISTEN,
1115 P2P_PREQ_NOT_PROCESSED,
1120 * p2p_probe_req_rx - Report reception of a Probe Request frame
1121 * @p2p: P2P module context from p2p_init()
1122 * @addr: Source MAC address
1123 * @dst: Destination MAC address if available or %NULL
1124 * @bssid: BSSID if available or %NULL
1125 * @ie: Information elements from the Probe Request frame body
1126 * @ie_len: Length of ie buffer in octets
1127 * Returns: value indicating the type and status of the probe request
1129 enum p2p_probe_req_status
1130 p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
1131 const u8 *bssid, const u8 *ie, size_t ie_len);
1134 * p2p_rx_action - Report received Action frame
1135 * @p2p: P2P module context from p2p_init()
1136 * @da: Destination address of the received Action frame
1137 * @sa: Source address of the received Action frame
1138 * @bssid: Address 3 of the received Action frame
1139 * @category: Category of the received Action frame
1140 * @data: Action frame body after the Category field
1141 * @len: Length of the data buffer in octets
1142 * @freq: Frequency (in MHz) on which the frame was received
1144 void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1145 const u8 *bssid, u8 category,
1146 const u8 *data, size_t len, int freq);
1149 * p2p_scan_res_handler - Indicate a P2P scan results
1150 * @p2p: P2P module context from p2p_init()
1151 * @bssid: BSSID of the scan result
1152 * @freq: Frequency of the channel on which the device was found in MHz
1153 * @level: Signal level (signal strength of the received Beacon/Probe Response
1155 * @ies: Pointer to IEs from the scan result
1156 * @ies_len: Length of the ies buffer
1157 * Returns: 0 to continue or 1 to stop scan result indication
1159 * This function is called to indicate a scan result entry with P2P IE from a
1160 * scan requested with struct p2p_config::p2p_scan(). This can be called during
1161 * the actual scan process (i.e., whenever a new device is found) or as a
1162 * sequence of calls after the full scan has been completed. The former option
1163 * can result in optimized operations, but may not be supported by all
1164 * driver/firmware designs. The ies buffer need to include at least the P2P IE,
1165 * but it is recommended to include all IEs received from the device. The
1166 * caller does not need to check that the IEs contain a P2P IE before calling
1167 * this function since frames will be filtered internally if needed.
1169 * This function will return 1 if it wants to stop scan result iteration (and
1170 * scan in general if it is still in progress). This is used to allow faster
1171 * start of a pending operation, e.g., to start a pending GO negotiation.
1173 int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
1174 int level, const u8 *ies, size_t ies_len);
1177 * p2p_scan_res_handled - Indicate end of scan results
1178 * @p2p: P2P module context from p2p_init()
1180 * This function is called to indicate that all P2P scan results from a scan
1181 * have been reported with zero or more calls to p2p_scan_res_handler(). This
1182 * function must be called as a response to successful
1183 * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler()
1184 * calls stopped iteration.
1186 void p2p_scan_res_handled(struct p2p_data *p2p);
1188 enum p2p_send_action_result {
1189 P2P_SEND_ACTION_SUCCESS /* Frame was send and acknowledged */,
1190 P2P_SEND_ACTION_NO_ACK /* Frame was sent, but not acknowledged */,
1191 P2P_SEND_ACTION_FAILED /* Frame was not sent due to a failure */
1195 * p2p_send_action_cb - Notify TX status of an Action frame
1196 * @p2p: P2P module context from p2p_init()
1197 * @freq: Channel frequency in MHz
1198 * @dst: Destination MAC address (Address 1)
1199 * @src: Source MAC address (Address 2)
1200 * @bssid: BSSID (Address 3)
1201 * @result: Result of the transmission attempt
1203 * This function is used to indicate the result of an Action frame transmission
1204 * that was requested with struct p2p_config::send_action() callback.
1206 void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
1207 const u8 *src, const u8 *bssid,
1208 enum p2p_send_action_result result);
1211 * p2p_listen_cb - Indicate the start of a requested Listen state
1212 * @p2p: P2P module context from p2p_init()
1213 * @freq: Listen channel frequency in MHz
1214 * @duration: Duration for the Listen state in milliseconds
1216 * This function is used to indicate that a Listen state requested with
1217 * struct p2p_config::start_listen() callback has started.
1219 void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
1220 unsigned int duration);
1223 * p2p_listen_end - Indicate the end of a requested Listen state
1224 * @p2p: P2P module context from p2p_init()
1225 * @freq: Listen channel frequency in MHz
1226 * Returns: 0 if no operations were started, 1 if an operation was started
1228 * This function is used to indicate that a Listen state requested with
1229 * struct p2p_config::start_listen() callback has ended.
1231 int p2p_listen_end(struct p2p_data *p2p, unsigned int freq);
1233 void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
1234 const u8 *ie, size_t ie_len);
1236 void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
1237 const u8 *ie, size_t ie_len);
1240 /* Per-group P2P state for GO */
1245 * struct p2p_group_config - P2P group configuration
1247 * This configuration is provided to the P2P module during initialization of
1248 * the per-group information with p2p_group_init().
1250 struct p2p_group_config {
1252 * persistent_group - Whether the group is persistent
1253 * 0 = not a persistent group
1254 * 1 = persistent group without persistent reconnect
1255 * 2 = persistent group with persistent reconnect
1257 int persistent_group;
1260 * interface_addr - P2P Interface Address of the group
1262 u8 interface_addr[ETH_ALEN];
1265 * max_clients - Maximum number of clients in the group
1267 unsigned int max_clients;
1275 * ssid_len - Length of SSID
1280 * cb_ctx - Context to use with callback functions
1285 * ie_update - Notification of IE update
1286 * @ctx: Callback context from cb_ctx
1287 * @beacon_ies: P2P IE for Beacon frames or %NULL if no change
1288 * @proberesp_ies: P2P Ie for Probe Response frames
1290 * P2P module uses this callback function to notify whenever the P2P IE
1291 * in Beacon or Probe Response frames should be updated based on group
1294 * The callee is responsible for freeing the returned buffer(s) with
1297 void (*ie_update)(void *ctx, struct wpabuf *beacon_ies,
1298 struct wpabuf *proberesp_ies);
1301 * idle_update - Notification of changes in group idle state
1302 * @ctx: Callback context from cb_ctx
1303 * @idle: Whether the group is idle (no associated stations)
1305 void (*idle_update)(void *ctx, int idle);
1309 * p2p_group_init - Initialize P2P group
1310 * @p2p: P2P module context from p2p_init()
1311 * @config: P2P group configuration (will be freed by p2p_group_deinit())
1312 * Returns: Pointer to private data or %NULL on failure
1314 * This function is used to initialize per-group P2P module context. Currently,
1315 * this is only used to manage GO functionality and P2P clients do not need to
1316 * create an instance of this per-group information.
1318 struct p2p_group * p2p_group_init(struct p2p_data *p2p,
1319 struct p2p_group_config *config);
1322 * p2p_group_deinit - Deinitialize P2P group
1323 * @group: P2P group context from p2p_group_init()
1325 void p2p_group_deinit(struct p2p_group *group);
1328 * p2p_group_notif_assoc - Notification of P2P client association with GO
1329 * @group: P2P group context from p2p_group_init()
1330 * @addr: Interface address of the P2P client
1331 * @ie: IEs from the (Re)association Request frame
1332 * @len: Length of the ie buffer in octets
1333 * Returns: 0 on success, -1 on failure
1335 int p2p_group_notif_assoc(struct p2p_group *group, const u8 *addr,
1336 const u8 *ie, size_t len);
1339 * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response
1340 * @group: P2P group context from p2p_group_init()
1341 * @status: Status value (P2P_SC_SUCCESS if association succeeded)
1342 * Returns: P2P IE for (Re)association Response or %NULL on failure
1344 * The caller is responsible for freeing the returned buffer with
1347 struct wpabuf * p2p_group_assoc_resp_ie(struct p2p_group *group, u8 status);
1350 * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO
1351 * @group: P2P group context from p2p_group_init()
1352 * @addr: Interface address of the P2P client
1354 void p2p_group_notif_disassoc(struct p2p_group *group, const u8 *addr);
1357 * p2p_group_notif_formation_done - Notification of completed group formation
1358 * @group: P2P group context from p2p_group_init()
1360 void p2p_group_notif_formation_done(struct p2p_group *group);
1363 * p2p_group_notif_noa - Notification of NoA change
1364 * @group: P2P group context from p2p_group_init()
1365 * @noa: Notice of Absence attribute payload, %NULL if none
1366 * @noa_len: Length of noa buffer in octets
1367 * Returns: 0 on success, -1 on failure
1369 * Notify the P2P group management about a new NoA contents. This will be
1370 * inserted into the P2P IEs in Beacon and Probe Response frames with rest of
1371 * the group information.
1373 int p2p_group_notif_noa(struct p2p_group *group, const u8 *noa,
1377 * p2p_group_match_dev_type - Match device types in group with requested type
1378 * @group: P2P group context from p2p_group_init()
1379 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1380 * Returns: 1 on match, 0 on mismatch
1382 * This function can be used to match the Requested Device Type attribute in
1383 * WPS IE with the device types of a group member for deciding whether a GO
1384 * should reply to a Probe Request frame. Match will be reported if the WPS IE
1385 * is not requested any specific device type.
1387 int p2p_group_match_dev_type(struct p2p_group *group, struct wpabuf *wps);
1390 * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id
1392 int p2p_group_match_dev_id(struct p2p_group *group, struct wpabuf *p2p);
1395 * p2p_group_go_discover - Send GO Discoverability Request to a group client
1396 * @group: P2P group context from p2p_group_init()
1397 * Returns: 0 on success (frame scheduled); -1 if client was not found
1399 int p2p_group_go_discover(struct p2p_group *group, const u8 *dev_id,
1400 const u8 *searching_dev, int rx_freq);
1403 /* Generic helper functions */
1406 * p2p_ie_text - Build text format description of P2P IE
1408 * @buf: Buffer for returning text
1409 * @end: Pointer to the end of the buf area
1410 * Returns: Number of octets written to the buffer or -1 on failure
1412 * This function can be used to parse P2P IE contents into text format
1413 * field=value lines.
1415 int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end);
1418 * p2p_scan_result_text - Build text format description of P2P IE
1419 * @ies: Information elements from scan results
1420 * @ies_len: ies buffer length in octets
1421 * @buf: Buffer for returning text
1422 * @end: Pointer to the end of the buf area
1423 * Returns: Number of octets written to the buffer or -1 on failure
1425 * This function can be used to parse P2P IE contents into text format
1426 * field=value lines.
1428 int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end);
1431 * p2p_parse_dev_addr_in_p2p_ie - Parse P2P Device Address from a concatenated
1434 * @dev_addr: Buffer for returning P2P Device Address
1435 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1437 int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr);
1440 * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s)
1441 * @ies: Information elements from scan results
1442 * @ies_len: ies buffer length in octets
1443 * @dev_addr: Buffer for returning P2P Device Address
1444 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1446 int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr);
1449 * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame
1450 * @p2p: P2P module context from p2p_init()
1452 * @buf: Buffer for writing the P2P IE
1453 * @len: Maximum buf length in octets
1454 * @p2p_group: Whether this is for association with a P2P GO
1455 * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none
1456 * Returns: Number of octets written into buf or -1 on failure
1458 int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
1459 size_t len, int p2p_group, struct wpabuf *p2p_ie);
1462 * p2p_scan_ie - Build P2P IE for Probe Request
1463 * @p2p: P2P module context from p2p_init()
1464 * @ies: Buffer for writing P2P IE
1465 * @dev_id: Device ID to search for or %NULL for any
1467 void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id);
1470 * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie
1471 * @p2p: P2P module context from p2p_init()
1472 * Returns: Number of octets that p2p_scan_ie() may add to the buffer
1474 size_t p2p_scan_ie_buf_len(struct p2p_data *p2p);
1477 * p2p_go_params - Generate random P2P group parameters
1478 * @p2p: P2P module context from p2p_init()
1479 * @params: Buffer for parameters
1480 * Returns: 0 on success, -1 on failure
1482 int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params);
1485 * p2p_get_group_capab - Get Group Capability from P2P IE data
1486 * @p2p_ie: P2P IE(s) contents
1487 * Returns: Group Capability
1489 u8 p2p_get_group_capab(const struct wpabuf *p2p_ie);
1492 * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection
1493 * @p2p_ie: P2P IE(s) contents
1494 * Returns: 0 if cross connection is allow, 1 if not
1496 int p2p_get_cross_connect_disallowed(const struct wpabuf *p2p_ie);
1499 * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data
1500 * @p2p_ie: P2P IE(s) contents
1501 * Returns: Pointer to P2P Device Address or %NULL if not included
1503 const u8 * p2p_get_go_dev_addr(const struct wpabuf *p2p_ie);
1506 * p2p_get_peer_info - Get P2P peer information
1507 * @p2p: P2P module context from p2p_init()
1508 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1509 * @next: Whether to select the peer entry following the one indicated by addr
1510 * Returns: Pointer to peer info or %NULL if not found
1512 const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
1513 const u8 *addr, int next);
1516 * p2p_get_peer_info_txt - Get internal P2P peer information in text format
1517 * @info: Pointer to P2P peer info from p2p_get_peer_info()
1518 * @buf: Buffer for returning text
1519 * @buflen: Maximum buffer length
1520 * Returns: Number of octets written to the buffer or -1 on failure
1522 * Note: This information is internal to the P2P module and subject to change.
1523 * As such, this should not really be used by external programs for purposes
1524 * other than debugging.
1526 int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
1527 char *buf, size_t buflen);
1530 * p2p_peer_known - Check whether P2P peer is known
1531 * @p2p: P2P module context from p2p_init()
1532 * @addr: P2P Device Address of the peer
1533 * Returns: 1 if the specified device is in the P2P peer table or 0 if not
1535 int p2p_peer_known(struct p2p_data *p2p, const u8 *addr);
1538 * p2p_set_client_discoverability - Set client discoverability capability
1539 * @p2p: P2P module context from p2p_init()
1540 * @enabled: Whether client discoverability will be enabled
1542 * This function can be used to disable (and re-enable) client discoverability.
1543 * This capability is enabled by default and should not be disabled in normal
1544 * use cases, i.e., this is mainly for testing purposes.
1546 void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled);
1549 * p2p_set_managed_oper - Set managed P2P Device operations capability
1550 * @p2p: P2P module context from p2p_init()
1551 * @enabled: Whether managed P2P Device operations will be enabled
1553 void p2p_set_managed_oper(struct p2p_data *p2p, int enabled);
1555 int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel);
1557 int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len);
1559 int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
1561 int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
1564 void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr);
1567 * p2p_set_cross_connect - Set cross connection capability
1568 * @p2p: P2P module context from p2p_init()
1569 * @enabled: Whether cross connection will be enabled
1571 void p2p_set_cross_connect(struct p2p_data *p2p, int enabled);
1573 int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr);
1576 * p2p_set_intra_bss_dist - Set intra BSS distribution
1577 * @p2p: P2P module context from p2p_init()
1578 * @enabled: Whether intra BSS distribution will be enabled
1580 void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled);
1583 * p2p_supported_freq - Check whether channel is supported for P2P
1584 * @p2p: P2P module context from p2p_init()
1585 * @freq: Channel frequency in MHz
1586 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
1588 int p2p_supported_freq(struct p2p_data *p2p, unsigned int freq);
1590 void p2p_update_channel_list(struct p2p_data *p2p, struct p2p_channels *chan);
1593 * p2p_set_best_channels - Update best channel information
1594 * @p2p: P2P module context from p2p_init()
1595 * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band
1596 * @freq_5: Frequency (MHz) of best channel in 5 GHz band
1597 * @freq_overall: Frequency (MHz) of best channel overall
1599 void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
1602 const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p);
1605 * p2p_get_group_num_members - Get number of members in group
1606 * @group: P2P group context from p2p_group_init()
1607 * Returns: Number of members in the group
1609 unsigned int p2p_get_group_num_members(struct p2p_group *group);
1612 * p2p_iterate_group_members - Iterate group members
1613 * @group: P2P group context from p2p_group_init()
1614 * @next: iteration pointer, must be a pointer to a void * that is set to %NULL
1615 * on the first call and not modified later
1616 * Returns: A P2P Interface Address for each call and %NULL for no more members
1618 const u8 * p2p_iterate_group_members(struct p2p_group *group, void **next);
1621 * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group
1622 * @group: P2P group context from p2p_group_init()
1623 * @addr: P2P Interface Address of the client
1624 * Returns: P2P Device Address of the client if found or %NULL if no match
1627 const u8 * p2p_group_get_dev_addr(struct p2p_group *group, const u8 *addr);
1630 * p2p_group_is_client_connected - Check whether a specific client is connected
1631 * @group: P2P group context from p2p_group_init()
1632 * @addr: P2P Device Address of the client
1633 * Returns: 1 if client is connected or 0 if not
1635 int p2p_group_is_client_connected(struct p2p_group *group, const u8 *dev_addr);
1638 * p2p_get_peer_found - Get P2P peer info structure of a found peer
1639 * @p2p: P2P module context from p2p_init()
1640 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1641 * @next: Whether to select the peer entry following the one indicated by addr
1642 * Returns: The first P2P peer info available or %NULL if no such peer exists
1644 const struct p2p_peer_info *
1645 p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next);
1648 * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions
1649 * @p2p: P2P module context from p2p_init()
1651 void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p);
1654 * p2p_add_wps_vendor_extension - Add a WPS vendor extension
1655 * @p2p: P2P module context from p2p_init()
1656 * @vendor_ext: The vendor extensions to add
1657 * Returns: 0 on success, -1 on failure
1659 * The wpabuf structures in the array are owned by the P2P
1660 * module after this call.
1662 int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
1663 const struct wpabuf *vendor_ext);
1666 * p2p_set_oper_channel - Set the P2P operating channel
1667 * @p2p: P2P module context from p2p_init()
1668 * @op_reg_class: Operating regulatory class to set
1669 * @op_channel: operating channel to set
1670 * @cfg_op_channel : Whether op_channel is hardcoded in configuration
1671 * Returns: 0 on success, -1 on failure
1673 int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
1674 int cfg_op_channel);
1677 * p2p_set_pref_chan - Set P2P preferred channel list
1678 * @p2p: P2P module context from p2p_init()
1679 * @num_pref_chan: Number of entries in pref_chan list
1680 * @pref_chan: Preferred channels or %NULL to remove preferences
1681 * Returns: 0 on success, -1 on failure
1683 int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan,
1684 const struct p2p_channel *pref_chan);
1687 * p2p_in_progress - Check whether a P2P operation is progress
1688 * @p2p: P2P module context from p2p_init()
1689 * Returns: 0 if P2P module is idle or 1 if an operation is in progress
1691 int p2p_in_progress(struct p2p_data *p2p);
1694 * p2p_other_scan_completed - Notify completion of non-P2P scan
1695 * @p2p: P2P module context from p2p_init()
1696 * Returns: 0 if P2P module is idle or 1 if an operation was started
1698 int p2p_other_scan_completed(struct p2p_data *p2p);
1700 const char * p2p_wps_method_text(enum p2p_wps_method method);
1703 * p2p_set_config_timeout - Set local config timeouts
1704 * @p2p: P2P module context from p2p_init()
1705 * @go_timeout: Time in 10 ms units it takes to start the GO mode
1706 * @client_timeout: Time in 10 ms units it takes to start the client mode
1708 void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout,
1711 void p2p_increase_search_delay(struct p2p_data *p2p, unsigned int delay);