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 * psk - WPA pre-shared key (256 bits) (GO only)
96 * psk_set - Whether PSK field is configured (GO only)
101 * passphrase - WPA2-Personal passphrase for the group (GO only)
106 * peer_device_addr - P2P Device Address of the peer
108 u8 peer_device_addr[ETH_ALEN];
111 * peer_interface_addr - P2P Interface Address of the peer
113 u8 peer_interface_addr[ETH_ALEN];
116 * wps_method - WPS method to be used during provisioning
118 enum p2p_wps_method wps_method;
120 #define P2P_MAX_CHANNELS 50
123 * freq_list - Zero-terminated list of possible operational channels
125 int freq_list[P2P_MAX_CHANNELS];
128 * persistent_group - Whether the group should be made persistent
130 * 1 = persistent group without persistent reconnect
131 * 2 = persistent group with persistent reconnect
133 int persistent_group;
136 * peer_config_timeout - Peer configuration timeout (in 10 msec units)
138 unsigned int peer_config_timeout;
146 P2P_SCAN_SOCIAL_PLUS_ONE
149 #define P2P_MAX_WPS_VENDOR_EXT 10
152 * struct p2p_peer_info - P2P peer information
154 struct p2p_peer_info {
156 * p2p_device_addr - P2P Device Address of the peer
158 u8 p2p_device_addr[ETH_ALEN];
161 * pri_dev_type - Primary Device Type
166 * device_name - Device Name (0..32 octets encoded in UTF-8)
168 char device_name[33];
171 * manufacturer - Manufacturer (0..64 octets encoded in UTF-8)
173 char manufacturer[65];
176 * model_name - Model Name (0..32 octets encoded in UTF-8)
181 * model_number - Model Number (0..32 octets encoded in UTF-8)
183 char model_number[33];
186 * serial_number - Serial Number (0..32 octets encoded in UTF-8)
188 char serial_number[33];
191 * level - Signal level
196 * config_methods - WPS Configuration Methods
201 * dev_capab - Device Capabilities
206 * group_capab - Group Capabilities
211 * wps_sec_dev_type_list - WPS secondary device type list
213 * This list includes from 0 to 16 Secondary Device Types as indicated
214 * by wps_sec_dev_type_list_len (8 * number of types).
216 u8 wps_sec_dev_type_list[128];
219 * wps_sec_dev_type_list_len - Length of secondary device type list
221 size_t wps_sec_dev_type_list_len;
223 struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT];
226 * wfd_subelems - Wi-Fi Display subelements from WFD IE(s)
228 struct wpabuf *wfd_subelems;
231 enum p2p_prov_disc_status {
232 P2P_PROV_DISC_SUCCESS,
233 P2P_PROV_DISC_TIMEOUT,
234 P2P_PROV_DISC_REJECTED,
235 P2P_PROV_DISC_TIMEOUT_JOIN,
244 * struct p2p_config - P2P configuration
246 * This configuration is provided to the P2P module during initialization with
251 * country - Country code to use in P2P operations
256 * reg_class - Regulatory class for own listen channel
261 * channel - Own listen channel
266 * Regulatory class for own operational channel
271 * op_channel - Own operational channel
276 * cfg_op_channel - Whether op_channel is hardcoded in configuration
281 * channels - Own supported regulatory classes and channels
283 * List of supposerted channels per regulatory class. The regulatory
284 * classes are defined in IEEE Std 802.11-2007 Annex J and the
285 * numbering of the clases depends on the configured country code.
287 struct p2p_channels channels;
290 * num_pref_chan - Number of pref_chan entries
292 unsigned int num_pref_chan;
295 * pref_chan - Preferred channels for GO Negotiation
297 struct p2p_channel *pref_chan;
300 * pri_dev_type - Primary Device Type (see WPS)
305 * P2P_SEC_DEVICE_TYPES - Maximum number of secondary device types
307 #define P2P_SEC_DEVICE_TYPES 5
310 * sec_dev_type - Optional secondary device types
312 u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8];
315 * num_sec_dev_types - Number of sec_dev_type entries
317 size_t num_sec_dev_types;
320 * dev_addr - P2P Device Address
322 u8 dev_addr[ETH_ALEN];
325 * dev_name - Device Name
338 * concurrent_operations - Whether concurrent operations are supported
340 int concurrent_operations;
343 * max_peers - Maximum number of discovered peers to remember
345 * If more peers are discovered, older entries will be removed to make
346 * room for the new ones.
351 * p2p_intra_bss - Intra BSS communication is supported
356 * ssid_postfix - Postfix data to add to the SSID
358 * This data will be added to the end of the SSID after the
359 * DIRECT-<random two octets> prefix.
361 u8 ssid_postfix[32 - 9];
364 * ssid_postfix_len - Length of the ssid_postfix data
366 size_t ssid_postfix_len;
369 * max_listen - Maximum listen duration in ms
371 unsigned int max_listen;
374 * msg_ctx - Context to use with wpa_msg() calls
379 * cb_ctx - Context to use with callback functions
384 /* Callbacks to request lower layer driver operations */
387 * p2p_scan - Request a P2P scan/search
388 * @ctx: Callback context from cb_ctx
390 * @freq: Specific frequency (MHz) to scan or 0 for no restriction
391 * @num_req_dev_types: Number of requested device types
392 * @req_dev_types: Array containing requested device types
393 * @dev_id: Device ID to search for or %NULL to find all devices
394 * @pw_id: Device Password ID
395 * Returns: 0 on success, -1 on failure
397 * This callback function is used to request a P2P scan or search
398 * operation to be completed. Type type argument specifies which type
399 * of scan is to be done. @P2P_SCAN_SOCIAL indicates that only the
400 * social channels (1, 6, 11) should be scanned. @P2P_SCAN_FULL
401 * indicates that all channels are to be scanned.
402 * @P2P_SCAN_SOCIAL_PLUS_ONE request scan of all the social channels
403 * plus one extra channel specified by freq.
405 * The full scan is used for the initial scan to find group owners from
406 * all. The other types are used during search phase scan of the social
407 * channels (with potential variation if the Listen channel of the
408 * target peer is known or if other channels are scanned in steps).
410 * The scan results are returned after this call by calling
411 * p2p_scan_res_handler() for each scan result that has a P2P IE and
412 * then calling p2p_scan_res_handled() to indicate that all scan
413 * results have been indicated.
415 int (*p2p_scan)(void *ctx, enum p2p_scan_type type, int freq,
416 unsigned int num_req_dev_types,
417 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id);
420 * send_probe_resp - Transmit a Probe Response frame
421 * @ctx: Callback context from cb_ctx
422 * @buf: Probe Response frame (including the header and body)
423 * Returns: 0 on success, -1 on failure
425 * This function is used to reply to Probe Request frames that were
426 * indicated with a call to p2p_probe_req_rx(). The response is to be
427 * sent on the same channel or to be dropped if the driver is not
428 * anymore listening to Probe Request frames.
430 * Alternatively, the responsibility for building the Probe Response
431 * frames in Listen state may be in another system component in which
432 * case this function need to be implemented (i.e., the function
433 * pointer can be %NULL). The WPS and P2P IEs to be added for Probe
434 * Response frames in such a case are available from the
435 * start_listen() callback. It should be noted that the received Probe
436 * Request frames must be indicated by calling p2p_probe_req_rx() even
437 * if this send_probe_resp() is not used.
439 int (*send_probe_resp)(void *ctx, const struct wpabuf *buf);
442 * send_action - Transmit an Action frame
443 * @ctx: Callback context from cb_ctx
444 * @freq: Frequency in MHz for the channel on which to transmit
445 * @dst: Destination MAC address (Address 1)
446 * @src: Source MAC address (Address 2)
447 * @bssid: BSSID (Address 3)
448 * @buf: Frame body (starting from Category field)
449 * @len: Length of buf in octets
450 * @wait_time: How many msec to wait for a response frame
451 * Returns: 0 on success, -1 on failure
453 * The Action frame may not be transmitted immediately and the status
454 * of the transmission must be reported by calling
455 * p2p_send_action_cb() once the frame has either been transmitted or
456 * it has been dropped due to excessive retries or other failure to
459 int (*send_action)(void *ctx, unsigned int freq, const u8 *dst,
460 const u8 *src, const u8 *bssid, const u8 *buf,
461 size_t len, unsigned int wait_time);
464 * send_action_done - Notify that Action frame sequence was completed
465 * @ctx: Callback context from cb_ctx
467 * This function is called when the Action frame sequence that was
468 * started with send_action() has been completed, i.e., when there is
469 * no need to wait for a response from the destination peer anymore.
471 void (*send_action_done)(void *ctx);
474 * start_listen - Start Listen state
475 * @ctx: Callback context from cb_ctx
476 * @freq: Frequency of the listen channel in MHz
477 * @duration: Duration for the Listen state in milliseconds
478 * @probe_resp_ie: IE(s) to be added to Probe Response frames
479 * Returns: 0 on success, -1 on failure
481 * This Listen state may not start immediately since the driver may
482 * have other pending operations to complete first. Once the Listen
483 * state has started, p2p_listen_cb() must be called to notify the P2P
484 * module. Once the Listen state is stopped, p2p_listen_end() must be
485 * called to notify the P2P module that the driver is not in the Listen
488 * If the send_probe_resp() is not used for generating the response,
489 * the IEs from probe_resp_ie need to be added to the end of the Probe
490 * Response frame body. If send_probe_resp() is used, the probe_resp_ie
491 * information can be ignored.
493 int (*start_listen)(void *ctx, unsigned int freq,
494 unsigned int duration,
495 const struct wpabuf *probe_resp_ie);
497 * stop_listen - Stop Listen state
498 * @ctx: Callback context from cb_ctx
500 * This callback can be used to stop a Listen state operation that was
501 * previously requested with start_listen().
503 void (*stop_listen)(void *ctx);
506 * get_noa - Get current Notice of Absence attribute payload
507 * @ctx: Callback context from cb_ctx
508 * @interface_addr: P2P Interface Address of the GO
509 * @buf: Buffer for returning NoA
510 * @buf_len: Buffer length in octets
511 * Returns: Number of octets used in buf, 0 to indicate no NoA is being
512 * advertized, or -1 on failure
514 * This function is used to fetch the current Notice of Absence
515 * attribute value from GO.
517 int (*get_noa)(void *ctx, const u8 *interface_addr, u8 *buf,
520 /* Callbacks to notify events to upper layer management entity */
523 * dev_found - Notification of a found P2P Device
524 * @ctx: Callback context from cb_ctx
525 * @addr: Source address of the message triggering this notification
526 * @info: P2P peer information
527 * @new_device: Inform if the peer is newly found
529 * This callback is used to notify that a new P2P Device has been
530 * found. This may happen, e.g., during Search state based on scan
531 * results or during Listen state based on receive Probe Request and
532 * Group Owner Negotiation Request.
534 void (*dev_found)(void *ctx, const u8 *addr,
535 const struct p2p_peer_info *info,
539 * dev_lost - Notification of a lost P2P Device
540 * @ctx: Callback context from cb_ctx
541 * @dev_addr: P2P Device Address of the lost P2P Device
543 * This callback is used to notify that a P2P Device has been deleted.
545 void (*dev_lost)(void *ctx, const u8 *dev_addr);
548 * go_neg_req_rx - Notification of a receive GO Negotiation Request
549 * @ctx: Callback context from cb_ctx
550 * @src: Source address of the message triggering this notification
551 * @dev_passwd_id: WPS Device Password ID
553 * This callback is used to notify that a P2P Device is requesting
554 * group owner negotiation with us, but we do not have all the
555 * necessary information to start GO Negotiation. This indicates that
556 * the local user has not authorized the connection yet by providing a
557 * PIN or PBC button press. This information can be provided with a
558 * call to p2p_connect().
560 void (*go_neg_req_rx)(void *ctx, const u8 *src, u16 dev_passwd_id);
563 * go_neg_completed - Notification of GO Negotiation results
564 * @ctx: Callback context from cb_ctx
565 * @res: GO Negotiation results
567 * This callback is used to notify that Group Owner Negotiation has
568 * been completed. Non-zero struct p2p_go_neg_results::status indicates
569 * failed negotiation. In case of success, this function is responsible
570 * for creating a new group interface (or using the existing interface
571 * depending on driver features), setting up the group interface in
572 * proper mode based on struct p2p_go_neg_results::role_go and
573 * initializing WPS provisioning either as a Registrar (if GO) or as an
574 * Enrollee. Successful WPS provisioning must be indicated by calling
575 * p2p_wps_success_cb(). The callee is responsible for timing out group
576 * formation if WPS provisioning cannot be completed successfully
579 void (*go_neg_completed)(void *ctx, struct p2p_go_neg_results *res);
582 * sd_request - Callback on Service Discovery Request
583 * @ctx: Callback context from cb_ctx
584 * @freq: Frequency (in MHz) of the channel
585 * @sa: Source address of the request
586 * @dialog_token: Dialog token
587 * @update_indic: Service Update Indicator from the source of request
588 * @tlvs: P2P Service Request TLV(s)
589 * @tlvs_len: Length of tlvs buffer in octets
591 * This callback is used to indicate reception of a service discovery
592 * request. Response to the query must be indicated by calling
593 * p2p_sd_response() with the context information from the arguments to
594 * this callback function.
596 * This callback handler can be set to %NULL to indicate that service
597 * discovery is not supported.
599 void (*sd_request)(void *ctx, int freq, const u8 *sa, u8 dialog_token,
600 u16 update_indic, const u8 *tlvs, size_t tlvs_len);
603 * sd_response - Callback on Service Discovery Response
604 * @ctx: Callback context from cb_ctx
605 * @sa: Source address of the request
606 * @update_indic: Service Update Indicator from the source of response
607 * @tlvs: P2P Service Response TLV(s)
608 * @tlvs_len: Length of tlvs buffer in octets
610 * This callback is used to indicate reception of a service discovery
611 * response. This callback handler can be set to %NULL if no service
612 * discovery requests are used. The information provided with this call
613 * is replies to the queries scheduled with p2p_sd_request().
615 void (*sd_response)(void *ctx, const u8 *sa, u16 update_indic,
616 const u8 *tlvs, size_t tlvs_len);
619 * prov_disc_req - Callback on Provisiong Discovery Request
620 * @ctx: Callback context from cb_ctx
621 * @peer: Source address of the request
622 * @config_methods: Requested WPS Config Method
623 * @dev_addr: P2P Device Address of the found P2P Device
624 * @pri_dev_type: Primary Device Type
625 * @dev_name: Device Name
626 * @supp_config_methods: Supported configuration Methods
627 * @dev_capab: Device Capabilities
628 * @group_capab: Group Capabilities
629 * @group_id: P2P Group ID (or %NULL if not included)
630 * @group_id_len: Length of P2P Group ID
632 * This callback is used to indicate reception of a Provision Discovery
633 * Request frame that the P2P module accepted.
635 void (*prov_disc_req)(void *ctx, const u8 *peer, u16 config_methods,
636 const u8 *dev_addr, const u8 *pri_dev_type,
637 const char *dev_name, u16 supp_config_methods,
638 u8 dev_capab, u8 group_capab,
639 const u8 *group_id, size_t group_id_len);
642 * prov_disc_resp - Callback on Provisiong Discovery Response
643 * @ctx: Callback context from cb_ctx
644 * @peer: Source address of the response
645 * @config_methods: Value from p2p_prov_disc_req() or 0 on failure
647 * This callback is used to indicate reception of a Provision Discovery
648 * Response frame for a pending request scheduled with
649 * p2p_prov_disc_req(). This callback handler can be set to %NULL if
650 * provision discovery is not used.
652 void (*prov_disc_resp)(void *ctx, const u8 *peer, u16 config_methods);
655 * prov_disc_fail - Callback on Provision Discovery failure
656 * @ctx: Callback context from cb_ctx
657 * @peer: Source address of the response
658 * @status: Cause of failure, will not be %P2P_PROV_DISC_SUCCESS
660 * This callback is used to indicate either a failure or no response
661 * to an earlier provision discovery request.
663 * This callback handler can be set to %NULL if provision discovery
664 * is not used or failures do not need to be indicated.
666 void (*prov_disc_fail)(void *ctx, const u8 *peer,
667 enum p2p_prov_disc_status status);
670 * invitation_process - Optional callback for processing Invitations
671 * @ctx: Callback context from cb_ctx
672 * @sa: Source address of the Invitation Request
673 * @bssid: P2P Group BSSID from the request or %NULL if not included
674 * @go_dev_addr: GO Device Address from P2P Group ID
675 * @ssid: SSID from P2P Group ID
676 * @ssid_len: Length of ssid buffer in octets
677 * @go: Variable for returning whether the local end is GO in the group
678 * @group_bssid: Buffer for returning P2P Group BSSID (if local end GO)
679 * @force_freq: Variable for returning forced frequency for the group
680 * @persistent_group: Whether this is an invitation to reinvoke a
681 * persistent group (instead of invitation to join an active
683 * Returns: Status code (P2P_SC_*)
685 * This optional callback can be used to implement persistent reconnect
686 * by allowing automatic restarting of persistent groups without user
687 * interaction. If this callback is not implemented (i.e., is %NULL),
688 * the received Invitation Request frames are replied with
689 * %P2P_SC_REQ_RECEIVED status and indicated to upper layer with the
690 * invitation_result() callback.
692 * If the requested parameters are acceptable and the group is known,
693 * %P2P_SC_SUCCESS may be returned. If the requested group is unknown,
694 * %P2P_SC_FAIL_UNKNOWN_GROUP should be returned. %P2P_SC_REQ_RECEIVED
695 * can be returned if there is not enough data to provide immediate
696 * response, i.e., if some sort of user interaction is needed. The
697 * invitation_received() callback will be called in that case
698 * immediately after this call.
700 u8 (*invitation_process)(void *ctx, const u8 *sa, const u8 *bssid,
701 const u8 *go_dev_addr, const u8 *ssid,
702 size_t ssid_len, int *go, u8 *group_bssid,
703 int *force_freq, int persistent_group);
706 * invitation_received - Callback on Invitation Request RX
707 * @ctx: Callback context from cb_ctx
708 * @sa: Source address of the Invitation Request
709 * @bssid: P2P Group BSSID or %NULL if not received
710 * @ssid: SSID of the group
711 * @ssid_len: Length of ssid in octets
712 * @go_dev_addr: GO Device Address
713 * @status: Response Status
714 * @op_freq: Operational frequency for the group
716 * This callback is used to indicate sending of an Invitation Response
717 * for a received Invitation Request. If status == 0 (success), the
718 * upper layer code is responsible for starting the group. status == 1
719 * indicates need to get user authorization for the group. Other status
720 * values indicate that the invitation request was rejected.
722 void (*invitation_received)(void *ctx, const u8 *sa, const u8 *bssid,
723 const u8 *ssid, size_t ssid_len,
724 const u8 *go_dev_addr, u8 status,
728 * invitation_result - Callback on Invitation result
729 * @ctx: Callback context from cb_ctx
730 * @status: Negotiation result (Status Code)
731 * @bssid: P2P Group BSSID or %NULL if not received
732 * @channels: Available operating channels for the group
734 * This callback is used to indicate result of an Invitation procedure
735 * started with a call to p2p_invite(). The indicated status code is
736 * the value received from the peer in Invitation Response with 0
737 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a
738 * local failure in transmitting the Invitation Request.
740 void (*invitation_result)(void *ctx, int status, const u8 *bssid,
741 const struct p2p_channels *channels);
744 * go_connected - Check whether we are connected to a GO
745 * @ctx: Callback context from cb_ctx
746 * @dev_addr: P2P Device Address of a GO
747 * Returns: 1 if we are connected as a P2P client to the specified GO
750 int (*go_connected)(void *ctx, const u8 *dev_addr);
754 /* P2P module initialization/deinitialization */
757 * p2p_init - Initialize P2P module
758 * @cfg: P2P module configuration
759 * Returns: Pointer to private data or %NULL on failure
761 * This function is used to initialize global P2P module context (one per
762 * device). The P2P module will keep a copy of the configuration data, so the
763 * caller does not need to maintain this structure. However, the callback
764 * functions and the context parameters to them must be kept available until
765 * the P2P module is deinitialized with p2p_deinit().
767 struct p2p_data * p2p_init(const struct p2p_config *cfg);
770 * p2p_deinit - Deinitialize P2P module
771 * @p2p: P2P module context from p2p_init()
773 void p2p_deinit(struct p2p_data *p2p);
776 * p2p_flush - Flush P2P module state
777 * @p2p: P2P module context from p2p_init()
779 * This command removes the P2P module state like peer device entries.
781 void p2p_flush(struct p2p_data *p2p);
784 * p2p_unauthorize - Unauthorize the specified peer device
785 * @p2p: P2P module context from p2p_init()
786 * @addr: P2P peer entry to be unauthorized
787 * Returns: 0 on success, -1 on failure
789 * This command removes any connection authorization from the specified P2P
790 * peer device address. This can be used, e.g., to cancel effect of a previous
791 * p2p_authorize() or p2p_connect() call that has not yet resulted in completed
794 int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr);
797 * p2p_set_dev_name - Set device name
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_dev_name(struct p2p_data *p2p, const char *dev_name);
806 int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer);
807 int p2p_set_model_name(struct p2p_data *p2p, const char *model_name);
808 int p2p_set_model_number(struct p2p_data *p2p, const char *model_number);
809 int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number);
811 void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods);
812 void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid);
815 * p2p_set_pri_dev_type - Set primary device type
816 * @p2p: P2P module context from p2p_init()
817 * Returns: 0 on success, -1 on failure
819 * This function can be used to update the P2P module configuration with
820 * information that was not available at the time of the p2p_init() call.
822 int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type);
825 * p2p_set_sec_dev_types - Set secondary device types
826 * @p2p: P2P module context from p2p_init()
827 * Returns: 0 on success, -1 on failure
829 * This function can be used to update the P2P module configuration with
830 * information that was not available at the time of the p2p_init() call.
832 int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
833 size_t num_dev_types);
835 int p2p_set_country(struct p2p_data *p2p, const char *country);
838 /* Commands from upper layer management entity */
840 enum p2p_discovery_type {
841 P2P_FIND_START_WITH_FULL,
842 P2P_FIND_ONLY_SOCIAL,
847 * p2p_find - Start P2P Find (Device Discovery)
848 * @p2p: P2P module context from p2p_init()
849 * @timeout: Timeout for find operation in seconds or 0 for no timeout
850 * @type: Device Discovery type
851 * @num_req_dev_types: Number of requested device types
852 * @req_dev_types: Requested device types array, must be an array
853 * containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no
854 * requested device types.
855 * @dev_id: Device ID to search for or %NULL to find all devices
856 * @search_delay: Extra delay in milliseconds between search iterations
857 * Returns: 0 on success, -1 on failure
859 int p2p_find(struct p2p_data *p2p, unsigned int timeout,
860 enum p2p_discovery_type type,
861 unsigned int num_req_dev_types, const u8 *req_dev_types,
862 const u8 *dev_id, unsigned int search_delay);
865 * p2p_stop_find - Stop P2P Find (Device Discovery)
866 * @p2p: P2P module context from p2p_init()
868 void p2p_stop_find(struct p2p_data *p2p);
871 * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq
872 * @p2p: P2P module context from p2p_init()
873 * @freq: Frequency in MHz for next operation
875 * This is like p2p_stop_find(), but Listen state is not stopped if we are
876 * already on the same frequency.
878 void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq);
881 * p2p_listen - Start P2P Listen state for specified duration
882 * @p2p: P2P module context from p2p_init()
883 * @timeout: Listen state duration in milliseconds
884 * Returns: 0 on success, -1 on failure
886 * This function can be used to request the P2P module to keep the device
887 * discoverable on the listen channel for an extended set of time. At least in
888 * its current form, this is mainly used for testing purposes and may not be of
889 * much use for normal P2P operations.
891 int p2p_listen(struct p2p_data *p2p, unsigned int timeout);
894 * p2p_connect - Start P2P group formation (GO negotiation)
895 * @p2p: P2P module context from p2p_init()
896 * @peer_addr: MAC address of the peer P2P client
897 * @wps_method: WPS method to be used in provisioning
898 * @go_intent: Local GO intent value (1..15)
899 * @own_interface_addr: Intended interface address to use with the group
900 * @force_freq: The only allowed channel frequency in MHz or 0
901 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
902 * persistent group without persistent reconnect, 2 = persistent group with
903 * persistent reconnect)
904 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
906 * @force_ssid_len: Length of $force_ssid buffer
907 * @pd_before_go_neg: Whether to send Provision Discovery prior to GO
908 * Negotiation as an interoperability workaround when initiating group
910 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if
912 * Returns: 0 on success, -1 on failure
914 int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
915 enum p2p_wps_method wps_method,
916 int go_intent, const u8 *own_interface_addr,
917 unsigned int force_freq, int persistent_group,
918 const u8 *force_ssid, size_t force_ssid_len,
919 int pd_before_go_neg, unsigned int pref_freq);
922 * p2p_authorize - Authorize P2P group formation (GO negotiation)
923 * @p2p: P2P module context from p2p_init()
924 * @peer_addr: MAC address of the peer P2P client
925 * @wps_method: WPS method to be used in provisioning
926 * @go_intent: Local GO intent value (1..15)
927 * @own_interface_addr: Intended interface address to use with the group
928 * @force_freq: The only allowed channel frequency in MHz or 0
929 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
930 * persistent group without persistent reconnect, 2 = persistent group with
931 * persistent reconnect)
932 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
934 * @force_ssid_len: Length of $force_ssid buffer
935 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if
937 * Returns: 0 on success, -1 on failure
939 * This is like p2p_connect(), but the actual group negotiation is not
940 * initiated automatically, i.e., the other end is expected to do that.
942 int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
943 enum p2p_wps_method wps_method,
944 int go_intent, const u8 *own_interface_addr,
945 unsigned int force_freq, int persistent_group,
946 const u8 *force_ssid, size_t force_ssid_len,
947 unsigned int pref_freq);
950 * p2p_reject - Reject peer device (explicitly block connection attempts)
951 * @p2p: P2P module context from p2p_init()
952 * @peer_addr: MAC address of the peer P2P client
953 * Returns: 0 on success, -1 on failure
955 int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr);
958 * p2p_prov_disc_req - Send Provision Discovery Request
959 * @p2p: P2P module context from p2p_init()
960 * @peer_addr: MAC address of the peer P2P client
961 * @config_methods: WPS Config Methods value (only one bit set)
962 * @join: Whether this is used by a client joining an active group
963 * @force_freq: Forced TX frequency for the frame (mainly for the join case)
964 * @user_initiated_pd: Flag to indicate if initiated by user or not
965 * Returns: 0 on success, -1 on failure
967 * This function can be used to request a discovered P2P peer to display a PIN
968 * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us
969 * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame
970 * is transmitted once immediately and if no response is received, the frame
971 * will be sent again whenever the target device is discovered during device
972 * dsicovery (start with a p2p_find() call). Response from the peer is
973 * indicated with the p2p_config::prov_disc_resp() callback.
975 int p2p_prov_disc_req(struct p2p_data *p2p, const u8 *peer_addr,
976 u16 config_methods, int join, int force_freq,
977 int user_initiated_pd);
980 * p2p_sd_request - Schedule a service discovery query
981 * @p2p: P2P module context from p2p_init()
982 * @dst: Destination peer or %NULL to apply for all peers
983 * @tlvs: P2P Service Query TLV(s)
984 * Returns: Reference to the query or %NULL on failure
986 * Response to the query is indicated with the p2p_config::sd_response()
989 void * p2p_sd_request(struct p2p_data *p2p, const u8 *dst,
990 const struct wpabuf *tlvs);
992 #ifdef CONFIG_WIFI_DISPLAY
993 void * p2p_sd_request_wfd(struct p2p_data *p2p, const u8 *dst,
994 const struct wpabuf *tlvs);
995 #endif /* CONFIG_WIFI_DISPLAY */
998 * p2p_sd_cancel_request - Cancel a pending service discovery query
999 * @p2p: P2P module context from p2p_init()
1000 * @req: Query reference from p2p_sd_request()
1001 * Returns: 0 if request for cancelled; -1 if not found
1003 int p2p_sd_cancel_request(struct p2p_data *p2p, void *req);
1006 * p2p_sd_response - Send response to a service discovery query
1007 * @p2p: P2P module context from p2p_init()
1008 * @freq: Frequency from p2p_config::sd_request() callback
1009 * @dst: Destination address from p2p_config::sd_request() callback
1010 * @dialog_token: Dialog token from p2p_config::sd_request() callback
1011 * @resp_tlvs: P2P Service Response TLV(s)
1013 * This function is called as a response to the request indicated with
1014 * p2p_config::sd_request() callback.
1016 void p2p_sd_response(struct p2p_data *p2p, int freq, const u8 *dst,
1017 u8 dialog_token, const struct wpabuf *resp_tlvs);
1020 * p2p_sd_service_update - Indicate a change in local services
1021 * @p2p: P2P module context from p2p_init()
1023 * This function needs to be called whenever there is a change in availability
1024 * of the local services. This will increment the Service Update Indicator
1025 * value which will be used in SD Request and Response frames.
1027 void p2p_sd_service_update(struct p2p_data *p2p);
1030 enum p2p_invite_role {
1032 P2P_INVITE_ROLE_ACTIVE_GO,
1033 P2P_INVITE_ROLE_CLIENT
1037 * p2p_invite - Invite a P2P Device into a group
1038 * @p2p: P2P module context from p2p_init()
1039 * @peer: Device Address of the peer P2P Device
1040 * @role: Local role in the group
1041 * @bssid: Group BSSID or %NULL if not known
1043 * @ssid_len: Length of ssid in octets
1044 * @force_freq: The only allowed channel frequency in MHz or 0
1045 * @go_dev_addr: Forced GO Device Address or %NULL if none
1046 * @persistent_group: Whether this is to reinvoke a persistent group
1047 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if
1049 * Returns: 0 on success, -1 on failure
1051 int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role,
1052 const u8 *bssid, const u8 *ssid, size_t ssid_len,
1053 unsigned int force_freq, const u8 *go_dev_addr,
1054 int persistent_group, unsigned int pref_freq);
1057 * p2p_presence_req - Request GO presence
1058 * @p2p: P2P module context from p2p_init()
1059 * @go_interface_addr: GO P2P Interface Address
1060 * @own_interface_addr: Own P2P Interface Address for this group
1061 * @freq: Group operating frequence (in MHz)
1062 * @duration1: Preferred presence duration in microseconds
1063 * @interval1: Preferred presence interval in microseconds
1064 * @duration2: Acceptable presence duration in microseconds
1065 * @interval2: Acceptable presence interval in microseconds
1066 * Returns: 0 on success, -1 on failure
1068 * If both duration and interval values are zero, the parameter pair is not
1069 * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0).
1071 int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
1072 const u8 *own_interface_addr, unsigned int freq,
1073 u32 duration1, u32 interval1, u32 duration2,
1077 * p2p_ext_listen - Set Extended Listen Timing
1078 * @p2p: P2P module context from p2p_init()
1079 * @freq: Group operating frequence (in MHz)
1080 * @period: Availability period in milliseconds (1-65535; 0 to disable)
1081 * @interval: Availability interval in milliseconds (1-65535; 0 to disable)
1082 * Returns: 0 on success, -1 on failure
1084 * This function can be used to enable or disable (period = interval = 0)
1085 * Extended Listen Timing. When enabled, the P2P Device will become
1086 * discoverable (go into Listen State) every @interval milliseconds for at
1087 * least @period milliseconds.
1089 int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
1090 unsigned int interval);
1092 /* Event notifications from upper layer management operations */
1095 * p2p_wps_success_cb - Report successfully completed WPS provisioning
1096 * @p2p: P2P module context from p2p_init()
1097 * @mac_addr: Peer address
1099 * This function is used to report successfully completed WPS provisioning
1100 * during group formation in both GO/Registrar and client/Enrollee roles.
1102 void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr);
1105 * p2p_group_formation_failed - Report failed WPS provisioning
1106 * @p2p: P2P module context from p2p_init()
1108 * This function is used to report failed group formation. This can happen
1109 * either due to failed WPS provisioning or due to 15 second timeout during
1110 * the provisioning phase.
1112 void p2p_group_formation_failed(struct p2p_data *p2p);
1115 * p2p_get_provisioning_info - Get any stored provisioning info
1116 * @p2p: P2P module context from p2p_init()
1117 * @addr: Peer P2P Device Address
1118 * Returns: WPS provisioning information (WPS config method) or 0 if no
1119 * information is available
1121 * This function is used to retrieve stored WPS provisioning info for the given
1124 u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr);
1127 * p2p_clear_provisioning_info - Clear any stored provisioning info
1128 * @p2p: P2P module context from p2p_init()
1129 * @iface_addr: Peer P2P Device Address
1131 * This function is used to clear stored WPS provisioning info for the given
1134 void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr);
1137 /* Event notifications from lower layer driver operations */
1140 * enum p2p_probe_req_status
1142 * @P2P_PREQ_MALFORMED: frame was not well-formed
1143 * @P2P_PREQ_NOT_LISTEN: device isn't in listen state, frame ignored
1144 * @P2P_PREQ_NOT_P2P: frame was not a P2P probe request
1145 * @P2P_PREQ_P2P_NOT_PROCESSED: frame was P2P but wasn't processed
1146 * @P2P_PREQ_P2P_PROCESSED: frame has been processed by P2P
1148 enum p2p_probe_req_status {
1150 P2P_PREQ_NOT_LISTEN,
1152 P2P_PREQ_NOT_PROCESSED,
1157 * p2p_probe_req_rx - Report reception of a Probe Request frame
1158 * @p2p: P2P module context from p2p_init()
1159 * @addr: Source MAC address
1160 * @dst: Destination MAC address if available or %NULL
1161 * @bssid: BSSID if available or %NULL
1162 * @ie: Information elements from the Probe Request frame body
1163 * @ie_len: Length of ie buffer in octets
1164 * Returns: value indicating the type and status of the probe request
1166 enum p2p_probe_req_status
1167 p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
1168 const u8 *bssid, const u8 *ie, size_t ie_len);
1171 * p2p_rx_action - Report received Action frame
1172 * @p2p: P2P module context from p2p_init()
1173 * @da: Destination address of the received Action frame
1174 * @sa: Source address of the received Action frame
1175 * @bssid: Address 3 of the received Action frame
1176 * @category: Category of the received Action frame
1177 * @data: Action frame body after the Category field
1178 * @len: Length of the data buffer in octets
1179 * @freq: Frequency (in MHz) on which the frame was received
1181 void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1182 const u8 *bssid, u8 category,
1183 const u8 *data, size_t len, int freq);
1186 * p2p_scan_res_handler - Indicate a P2P scan results
1187 * @p2p: P2P module context from p2p_init()
1188 * @bssid: BSSID of the scan result
1189 * @freq: Frequency of the channel on which the device was found in MHz
1190 * @rx_time: Time when the result was received
1191 * @level: Signal level (signal strength of the received Beacon/Probe Response
1193 * @ies: Pointer to IEs from the scan result
1194 * @ies_len: Length of the ies buffer
1195 * Returns: 0 to continue or 1 to stop scan result indication
1197 * This function is called to indicate a scan result entry with P2P IE from a
1198 * scan requested with struct p2p_config::p2p_scan(). This can be called during
1199 * the actual scan process (i.e., whenever a new device is found) or as a
1200 * sequence of calls after the full scan has been completed. The former option
1201 * can result in optimized operations, but may not be supported by all
1202 * driver/firmware designs. The ies buffer need to include at least the P2P IE,
1203 * but it is recommended to include all IEs received from the device. The
1204 * caller does not need to check that the IEs contain a P2P IE before calling
1205 * this function since frames will be filtered internally if needed.
1207 * This function will return 1 if it wants to stop scan result iteration (and
1208 * scan in general if it is still in progress). This is used to allow faster
1209 * start of a pending operation, e.g., to start a pending GO negotiation.
1211 int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
1212 struct os_time *rx_time, int level, const u8 *ies,
1216 * p2p_scan_res_handled - Indicate end of scan results
1217 * @p2p: P2P module context from p2p_init()
1219 * This function is called to indicate that all P2P scan results from a scan
1220 * have been reported with zero or more calls to p2p_scan_res_handler(). This
1221 * function must be called as a response to successful
1222 * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler()
1223 * calls stopped iteration.
1225 void p2p_scan_res_handled(struct p2p_data *p2p);
1227 enum p2p_send_action_result {
1228 P2P_SEND_ACTION_SUCCESS /* Frame was send and acknowledged */,
1229 P2P_SEND_ACTION_NO_ACK /* Frame was sent, but not acknowledged */,
1230 P2P_SEND_ACTION_FAILED /* Frame was not sent due to a failure */
1234 * p2p_send_action_cb - Notify TX status of an Action frame
1235 * @p2p: P2P module context from p2p_init()
1236 * @freq: Channel frequency in MHz
1237 * @dst: Destination MAC address (Address 1)
1238 * @src: Source MAC address (Address 2)
1239 * @bssid: BSSID (Address 3)
1240 * @result: Result of the transmission attempt
1242 * This function is used to indicate the result of an Action frame transmission
1243 * that was requested with struct p2p_config::send_action() callback.
1245 void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
1246 const u8 *src, const u8 *bssid,
1247 enum p2p_send_action_result result);
1250 * p2p_listen_cb - Indicate the start of a requested Listen state
1251 * @p2p: P2P module context from p2p_init()
1252 * @freq: Listen channel frequency in MHz
1253 * @duration: Duration for the Listen state in milliseconds
1255 * This function is used to indicate that a Listen state requested with
1256 * struct p2p_config::start_listen() callback has started.
1258 void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
1259 unsigned int duration);
1262 * p2p_listen_end - Indicate the end of a requested Listen state
1263 * @p2p: P2P module context from p2p_init()
1264 * @freq: Listen channel frequency in MHz
1265 * Returns: 0 if no operations were started, 1 if an operation was started
1267 * This function is used to indicate that a Listen state requested with
1268 * struct p2p_config::start_listen() callback has ended.
1270 int p2p_listen_end(struct p2p_data *p2p, unsigned int freq);
1272 void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
1273 const u8 *ie, size_t ie_len);
1275 void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
1276 const u8 *ie, size_t ie_len);
1279 /* Per-group P2P state for GO */
1284 * struct p2p_group_config - P2P group configuration
1286 * This configuration is provided to the P2P module during initialization of
1287 * the per-group information with p2p_group_init().
1289 struct p2p_group_config {
1291 * persistent_group - Whether the group is persistent
1292 * 0 = not a persistent group
1293 * 1 = persistent group without persistent reconnect
1294 * 2 = persistent group with persistent reconnect
1296 int persistent_group;
1299 * interface_addr - P2P Interface Address of the group
1301 u8 interface_addr[ETH_ALEN];
1304 * max_clients - Maximum number of clients in the group
1306 unsigned int max_clients;
1314 * ssid_len - Length of SSID
1319 * cb_ctx - Context to use with callback functions
1324 * ie_update - Notification of IE update
1325 * @ctx: Callback context from cb_ctx
1326 * @beacon_ies: P2P IE for Beacon frames or %NULL if no change
1327 * @proberesp_ies: P2P Ie for Probe Response frames
1329 * P2P module uses this callback function to notify whenever the P2P IE
1330 * in Beacon or Probe Response frames should be updated based on group
1333 * The callee is responsible for freeing the returned buffer(s) with
1336 void (*ie_update)(void *ctx, struct wpabuf *beacon_ies,
1337 struct wpabuf *proberesp_ies);
1340 * idle_update - Notification of changes in group idle state
1341 * @ctx: Callback context from cb_ctx
1342 * @idle: Whether the group is idle (no associated stations)
1344 void (*idle_update)(void *ctx, int idle);
1348 * p2p_group_init - Initialize P2P group
1349 * @p2p: P2P module context from p2p_init()
1350 * @config: P2P group configuration (will be freed by p2p_group_deinit())
1351 * Returns: Pointer to private data or %NULL on failure
1353 * This function is used to initialize per-group P2P module context. Currently,
1354 * this is only used to manage GO functionality and P2P clients do not need to
1355 * create an instance of this per-group information.
1357 struct p2p_group * p2p_group_init(struct p2p_data *p2p,
1358 struct p2p_group_config *config);
1361 * p2p_group_deinit - Deinitialize P2P group
1362 * @group: P2P group context from p2p_group_init()
1364 void p2p_group_deinit(struct p2p_group *group);
1367 * p2p_group_notif_assoc - Notification of P2P client association with GO
1368 * @group: P2P group context from p2p_group_init()
1369 * @addr: Interface address of the P2P client
1370 * @ie: IEs from the (Re)association Request frame
1371 * @len: Length of the ie buffer in octets
1372 * Returns: 0 on success, -1 on failure
1374 int p2p_group_notif_assoc(struct p2p_group *group, const u8 *addr,
1375 const u8 *ie, size_t len);
1378 * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response
1379 * @group: P2P group context from p2p_group_init()
1380 * @status: Status value (P2P_SC_SUCCESS if association succeeded)
1381 * Returns: P2P IE for (Re)association Response or %NULL on failure
1383 * The caller is responsible for freeing the returned buffer with
1386 struct wpabuf * p2p_group_assoc_resp_ie(struct p2p_group *group, u8 status);
1389 * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO
1390 * @group: P2P group context from p2p_group_init()
1391 * @addr: Interface address of the P2P client
1393 void p2p_group_notif_disassoc(struct p2p_group *group, const u8 *addr);
1396 * p2p_group_notif_formation_done - Notification of completed group formation
1397 * @group: P2P group context from p2p_group_init()
1399 void p2p_group_notif_formation_done(struct p2p_group *group);
1402 * p2p_group_notif_noa - Notification of NoA change
1403 * @group: P2P group context from p2p_group_init()
1404 * @noa: Notice of Absence attribute payload, %NULL if none
1405 * @noa_len: Length of noa buffer in octets
1406 * Returns: 0 on success, -1 on failure
1408 * Notify the P2P group management about a new NoA contents. This will be
1409 * inserted into the P2P IEs in Beacon and Probe Response frames with rest of
1410 * the group information.
1412 int p2p_group_notif_noa(struct p2p_group *group, const u8 *noa,
1416 * p2p_group_match_dev_type - Match device types in group with requested type
1417 * @group: P2P group context from p2p_group_init()
1418 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1419 * Returns: 1 on match, 0 on mismatch
1421 * This function can be used to match the Requested Device Type attribute in
1422 * WPS IE with the device types of a group member for deciding whether a GO
1423 * should reply to a Probe Request frame. Match will be reported if the WPS IE
1424 * is not requested any specific device type.
1426 int p2p_group_match_dev_type(struct p2p_group *group, struct wpabuf *wps);
1429 * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id
1431 int p2p_group_match_dev_id(struct p2p_group *group, struct wpabuf *p2p);
1434 * p2p_group_go_discover - Send GO Discoverability Request to a group client
1435 * @group: P2P group context from p2p_group_init()
1436 * Returns: 0 on success (frame scheduled); -1 if client was not found
1438 int p2p_group_go_discover(struct p2p_group *group, const u8 *dev_id,
1439 const u8 *searching_dev, int rx_freq);
1442 /* Generic helper functions */
1445 * p2p_ie_text - Build text format description of P2P IE
1447 * @buf: Buffer for returning text
1448 * @end: Pointer to the end of the buf area
1449 * Returns: Number of octets written to the buffer or -1 on failure
1451 * This function can be used to parse P2P IE contents into text format
1452 * field=value lines.
1454 int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end);
1457 * p2p_scan_result_text - Build text format description of P2P IE
1458 * @ies: Information elements from scan results
1459 * @ies_len: ies buffer length in octets
1460 * @buf: Buffer for returning text
1461 * @end: Pointer to the end of the buf area
1462 * Returns: Number of octets written to the buffer or -1 on failure
1464 * This function can be used to parse P2P IE contents into text format
1465 * field=value lines.
1467 int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end);
1470 * p2p_parse_dev_addr_in_p2p_ie - Parse P2P Device Address from a concatenated
1473 * @dev_addr: Buffer for returning P2P Device Address
1474 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1476 int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr);
1479 * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s)
1480 * @ies: Information elements from scan results
1481 * @ies_len: ies buffer length in octets
1482 * @dev_addr: Buffer for returning P2P Device Address
1483 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1485 int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr);
1488 * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame
1489 * @p2p: P2P module context from p2p_init()
1491 * @buf: Buffer for writing the P2P IE
1492 * @len: Maximum buf length in octets
1493 * @p2p_group: Whether this is for association with a P2P GO
1494 * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none
1495 * Returns: Number of octets written into buf or -1 on failure
1497 int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
1498 size_t len, int p2p_group, struct wpabuf *p2p_ie);
1501 * p2p_scan_ie - Build P2P IE for Probe Request
1502 * @p2p: P2P module context from p2p_init()
1503 * @ies: Buffer for writing P2P IE
1504 * @dev_id: Device ID to search for or %NULL for any
1506 void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id);
1509 * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie
1510 * @p2p: P2P module context from p2p_init()
1511 * Returns: Number of octets that p2p_scan_ie() may add to the buffer
1513 size_t p2p_scan_ie_buf_len(struct p2p_data *p2p);
1516 * p2p_go_params - Generate random P2P group parameters
1517 * @p2p: P2P module context from p2p_init()
1518 * @params: Buffer for parameters
1519 * Returns: 0 on success, -1 on failure
1521 int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params);
1524 * p2p_get_group_capab - Get Group Capability from P2P IE data
1525 * @p2p_ie: P2P IE(s) contents
1526 * Returns: Group Capability
1528 u8 p2p_get_group_capab(const struct wpabuf *p2p_ie);
1531 * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection
1532 * @p2p_ie: P2P IE(s) contents
1533 * Returns: 0 if cross connection is allow, 1 if not
1535 int p2p_get_cross_connect_disallowed(const struct wpabuf *p2p_ie);
1538 * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data
1539 * @p2p_ie: P2P IE(s) contents
1540 * Returns: Pointer to P2P Device Address or %NULL if not included
1542 const u8 * p2p_get_go_dev_addr(const struct wpabuf *p2p_ie);
1545 * p2p_get_peer_info - Get P2P peer information
1546 * @p2p: P2P module context from p2p_init()
1547 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1548 * @next: Whether to select the peer entry following the one indicated by addr
1549 * Returns: Pointer to peer info or %NULL if not found
1551 const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
1552 const u8 *addr, int next);
1555 * p2p_get_peer_info_txt - Get internal P2P peer information in text format
1556 * @info: Pointer to P2P peer info from p2p_get_peer_info()
1557 * @buf: Buffer for returning text
1558 * @buflen: Maximum buffer length
1559 * Returns: Number of octets written to the buffer or -1 on failure
1561 * Note: This information is internal to the P2P module and subject to change.
1562 * As such, this should not really be used by external programs for purposes
1563 * other than debugging.
1565 int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
1566 char *buf, size_t buflen);
1569 * p2p_peer_known - Check whether P2P peer is known
1570 * @p2p: P2P module context from p2p_init()
1571 * @addr: P2P Device Address of the peer
1572 * Returns: 1 if the specified device is in the P2P peer table or 0 if not
1574 int p2p_peer_known(struct p2p_data *p2p, const u8 *addr);
1577 * p2p_set_client_discoverability - Set client discoverability capability
1578 * @p2p: P2P module context from p2p_init()
1579 * @enabled: Whether client discoverability will be enabled
1581 * This function can be used to disable (and re-enable) client discoverability.
1582 * This capability is enabled by default and should not be disabled in normal
1583 * use cases, i.e., this is mainly for testing purposes.
1585 void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled);
1588 * p2p_set_managed_oper - Set managed P2P Device operations capability
1589 * @p2p: P2P module context from p2p_init()
1590 * @enabled: Whether managed P2P Device operations will be enabled
1592 void p2p_set_managed_oper(struct p2p_data *p2p, int enabled);
1594 int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel);
1596 int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len);
1598 int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
1600 int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
1603 void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr);
1606 * p2p_set_cross_connect - Set cross connection capability
1607 * @p2p: P2P module context from p2p_init()
1608 * @enabled: Whether cross connection will be enabled
1610 void p2p_set_cross_connect(struct p2p_data *p2p, int enabled);
1612 int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr);
1615 * p2p_set_intra_bss_dist - Set intra BSS distribution
1616 * @p2p: P2P module context from p2p_init()
1617 * @enabled: Whether intra BSS distribution will be enabled
1619 void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled);
1621 int p2p_channels_includes_freq(const struct p2p_channels *channels,
1625 * p2p_supported_freq - Check whether channel is supported for P2P
1626 * @p2p: P2P module context from p2p_init()
1627 * @freq: Channel frequency in MHz
1628 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
1630 int p2p_supported_freq(struct p2p_data *p2p, unsigned int freq);
1632 void p2p_update_channel_list(struct p2p_data *p2p, struct p2p_channels *chan);
1635 * p2p_set_best_channels - Update best channel information
1636 * @p2p: P2P module context from p2p_init()
1637 * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band
1638 * @freq_5: Frequency (MHz) of best channel in 5 GHz band
1639 * @freq_overall: Frequency (MHz) of best channel overall
1641 void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
1644 const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p);
1647 * p2p_get_group_num_members - Get number of members in group
1648 * @group: P2P group context from p2p_group_init()
1649 * Returns: Number of members in the group
1651 unsigned int p2p_get_group_num_members(struct p2p_group *group);
1654 * p2p_iterate_group_members - Iterate group members
1655 * @group: P2P group context from p2p_group_init()
1656 * @next: iteration pointer, must be a pointer to a void * that is set to %NULL
1657 * on the first call and not modified later
1658 * Returns: A P2P Interface Address for each call and %NULL for no more members
1660 const u8 * p2p_iterate_group_members(struct p2p_group *group, void **next);
1663 * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group
1664 * @group: P2P group context from p2p_group_init()
1665 * @addr: P2P Interface Address of the client
1666 * Returns: P2P Device Address of the client if found or %NULL if no match
1669 const u8 * p2p_group_get_dev_addr(struct p2p_group *group, const u8 *addr);
1672 * p2p_group_is_client_connected - Check whether a specific client is connected
1673 * @group: P2P group context from p2p_group_init()
1674 * @addr: P2P Device Address of the client
1675 * Returns: 1 if client is connected or 0 if not
1677 int p2p_group_is_client_connected(struct p2p_group *group, const u8 *dev_addr);
1680 * p2p_get_peer_found - Get P2P peer info structure of a found peer
1681 * @p2p: P2P module context from p2p_init()
1682 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1683 * @next: Whether to select the peer entry following the one indicated by addr
1684 * Returns: The first P2P peer info available or %NULL if no such peer exists
1686 const struct p2p_peer_info *
1687 p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next);
1690 * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions
1691 * @p2p: P2P module context from p2p_init()
1693 void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p);
1696 * p2p_add_wps_vendor_extension - Add a WPS vendor extension
1697 * @p2p: P2P module context from p2p_init()
1698 * @vendor_ext: The vendor extensions to add
1699 * Returns: 0 on success, -1 on failure
1701 * The wpabuf structures in the array are owned by the P2P
1702 * module after this call.
1704 int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
1705 const struct wpabuf *vendor_ext);
1708 * p2p_set_oper_channel - Set the P2P operating channel
1709 * @p2p: P2P module context from p2p_init()
1710 * @op_reg_class: Operating regulatory class to set
1711 * @op_channel: operating channel to set
1712 * @cfg_op_channel : Whether op_channel is hardcoded in configuration
1713 * Returns: 0 on success, -1 on failure
1715 int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
1716 int cfg_op_channel);
1719 * p2p_set_pref_chan - Set P2P preferred channel list
1720 * @p2p: P2P module context from p2p_init()
1721 * @num_pref_chan: Number of entries in pref_chan list
1722 * @pref_chan: Preferred channels or %NULL to remove preferences
1723 * Returns: 0 on success, -1 on failure
1725 int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan,
1726 const struct p2p_channel *pref_chan);
1729 * p2p_in_progress - Check whether a P2P operation is progress
1730 * @p2p: P2P module context from p2p_init()
1731 * Returns: 0 if P2P module is idle or 1 if an operation is in progress
1733 int p2p_in_progress(struct p2p_data *p2p);
1736 * p2p_other_scan_completed - Notify completion of non-P2P scan
1737 * @p2p: P2P module context from p2p_init()
1738 * Returns: 0 if P2P module is idle or 1 if an operation was started
1740 int p2p_other_scan_completed(struct p2p_data *p2p);
1742 const char * p2p_wps_method_text(enum p2p_wps_method method);
1745 * p2p_set_config_timeout - Set local config timeouts
1746 * @p2p: P2P module context from p2p_init()
1747 * @go_timeout: Time in 10 ms units it takes to start the GO mode
1748 * @client_timeout: Time in 10 ms units it takes to start the client mode
1750 void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout,
1753 void p2p_increase_search_delay(struct p2p_data *p2p, unsigned int delay);
1755 int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie);
1756 int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie);
1757 int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie);
1758 int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie);
1759 int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie);
1760 int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie);
1761 int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie);
1762 int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie);
1763 int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem);
1764 int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem);
1765 int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p,
1766 const struct wpabuf *elem);
1767 struct wpabuf * wifi_display_encaps(struct wpabuf *subelems);
1770 * p2p_set_disc_int - Set min/max discoverable interval for p2p_find
1771 * @p2p: P2P module context from p2p_init()
1772 * @min_disc_int: minDiscoverableInterval (in units of 100 TU); default 1
1773 * @max_disc_int: maxDiscoverableInterval (in units of 100 TU); default 3
1774 * @max_disc_tu: Maximum number of TUs (1.024 ms) for discoverable interval; or
1776 * Returns: 0 on success, or -1 on failure
1778 * This function can be used to configure minDiscoverableInterval and
1779 * maxDiscoverableInterval parameters for the Listen state during device
1780 * discovery (p2p_find). A random number of 100 TU units is picked for each
1781 * Listen state iteration from [min_disc_int,max_disc_int] range.
1783 * max_disc_tu can be used to futher limit the discoverable duration. However,
1784 * it should be noted that use of this parameter is not recommended since it
1785 * would not be compliant with the P2P specification.
1787 int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int,