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.
12 #include "common/ieee802_11_defs.h"
15 /* P2P ASP Setup Capability */
16 #define P2PS_SETUP_NONE 0
17 #define P2PS_SETUP_NEW BIT(0)
18 #define P2PS_SETUP_CLIENT BIT(1)
19 #define P2PS_SETUP_GROUP_OWNER BIT(2)
21 #define P2PS_WILD_HASH_STR "org.wi-fi.wfds"
22 #define P2PS_HASH_LEN 6
23 #define P2P_MAX_QUERY_HASH 6
24 #define P2PS_FEATURE_CAPAB_CPT_MAX 2
27 * P2P_MAX_PREF_CHANNELS - Maximum number of preferred channels
29 #define P2P_MAX_PREF_CHANNELS 100
32 * P2P_MAX_REG_CLASSES - Maximum number of regulatory classes
34 #define P2P_MAX_REG_CLASSES 10
37 * P2P_MAX_REG_CLASS_CHANNELS - Maximum number of channels per regulatory class
39 #define P2P_MAX_REG_CLASS_CHANNELS 20
42 * struct p2p_channels - List of supported channels
46 * struct p2p_reg_class - Supported regulatory class
48 struct p2p_reg_class
{
50 * reg_class - Regulatory class (IEEE 802.11-2007, Annex J)
55 * channel - Supported channels
57 u8 channel
[P2P_MAX_REG_CLASS_CHANNELS
];
60 * channels - Number of channel entries in use
63 } reg_class
[P2P_MAX_REG_CLASSES
];
66 * reg_classes - Number of reg_class entries in use
72 WPS_NOT_READY
, WPS_PIN_DISPLAY
, WPS_PIN_KEYPAD
, WPS_PBC
, WPS_NFC
,
77 * struct p2p_go_neg_results - P2P Group Owner Negotiation results
79 struct p2p_go_neg_results
{
81 * status - Negotiation result (Status Code)
83 * 0 (P2P_SC_SUCCESS) indicates success. Non-zero values indicate
89 * role_go - Whether local end is Group Owner
94 * freq - Frequency of the group operational channel in MHz
103 * ssid - SSID of the group
105 u8 ssid
[SSID_MAX_LEN
];
108 * ssid_len - Length of SSID in octets
113 * psk - WPA pre-shared key (256 bits) (GO only)
118 * psk_set - Whether PSK field is configured (GO only)
123 * passphrase - WPA2-Personal passphrase for the group (GO only)
128 * peer_device_addr - P2P Device Address of the peer
130 u8 peer_device_addr
[ETH_ALEN
];
133 * peer_interface_addr - P2P Interface Address of the peer
135 u8 peer_interface_addr
[ETH_ALEN
];
138 * wps_method - WPS method to be used during provisioning
140 enum p2p_wps_method wps_method
;
142 #define P2P_MAX_CHANNELS 50
145 * freq_list - Zero-terminated list of possible operational channels
147 int freq_list
[P2P_MAX_CHANNELS
];
150 * persistent_group - Whether the group should be made persistent
152 * 1 = persistent group without persistent reconnect
153 * 2 = persistent group with persistent reconnect
155 int persistent_group
;
158 * peer_config_timeout - Peer configuration timeout (in 10 msec units)
160 unsigned int peer_config_timeout
;
163 struct p2ps_provision
{
165 * status - Remote returned provisioning status code
170 * adv_id - P2PS Advertisement ID
175 * session_id - P2PS Session ID
180 * method - WPS Method (to be) used to establish session
185 * conncap - Connection Capabilities negotiated between P2P peers
190 * role - Info about the roles to be used for this connection
195 * session_mac - MAC address of the peer that started the session
197 u8 session_mac
[ETH_ALEN
];
200 * adv_mac - MAC address of the peer advertised the service
202 u8 adv_mac
[ETH_ALEN
];
205 * cpt_mask - Supported Coordination Protocol Transport mask
207 * A bitwise mask of supported ASP Coordination Protocol Transports.
208 * This property is set together and corresponds with cpt_priority.
213 * cpt_priority - Coordination Protocol Transport priority list
215 * Priorities of supported ASP Coordination Protocol Transports.
216 * This property is set together and corresponds with cpt_mask.
217 * The CPT priority list is 0 terminated.
219 u8 cpt_priority
[P2PS_FEATURE_CAPAB_CPT_MAX
+ 1];
222 * info - Vendor defined extra Provisioning information
227 struct p2ps_advertisement
{
228 struct p2ps_advertisement
*next
;
231 * svc_info - Pointer to (internal) Service defined information
236 * id - P2PS Advertisement ID
241 * config_methods - WPS Methods which are allowed for this service
246 * state - Current state of the service: 0 - Out Of Service, 1-255 Vendor defined
251 * auto_accept - Automatically Accept provisioning request if possible.
256 * hash - 6 octet Service Name has to match against incoming Probe Requests
258 u8 hash
[P2PS_HASH_LEN
];
261 * cpt_mask - supported Coordination Protocol Transport mask
263 * A bitwise mask of supported ASP Coordination Protocol Transports.
264 * This property is set together and corresponds with cpt_priority.
269 * cpt_priority - Coordination Protocol Transport priority list
271 * Priorities of supported ASP Coordinatin Protocol Transports.
272 * This property is set together and corresponds with cpt_mask.
273 * The CPT priority list is 0 terminated.
275 u8 cpt_priority
[P2PS_FEATURE_CAPAB_CPT_MAX
+ 1];
278 * svc_name - NULL Terminated UTF-8 Service Name, and svc_info storage
290 P2P_SCAN_SOCIAL_PLUS_ONE
293 #define P2P_MAX_WPS_VENDOR_EXT 10
296 * struct p2p_peer_info - P2P peer information
298 struct p2p_peer_info
{
300 * p2p_device_addr - P2P Device Address of the peer
302 u8 p2p_device_addr
[ETH_ALEN
];
305 * pri_dev_type - Primary Device Type
310 * device_name - Device Name (0..32 octets encoded in UTF-8)
312 char device_name
[WPS_DEV_NAME_MAX_LEN
+ 1];
315 * manufacturer - Manufacturer (0..64 octets encoded in UTF-8)
317 char manufacturer
[WPS_MANUFACTURER_MAX_LEN
+ 1];
320 * model_name - Model Name (0..32 octets encoded in UTF-8)
322 char model_name
[WPS_MODEL_NAME_MAX_LEN
+ 1];
325 * model_number - Model Number (0..32 octets encoded in UTF-8)
327 char model_number
[WPS_MODEL_NUMBER_MAX_LEN
+ 1];
330 * serial_number - Serial Number (0..32 octets encoded in UTF-8)
332 char serial_number
[WPS_SERIAL_NUMBER_MAX_LEN
+ 1];
335 * level - Signal level
340 * config_methods - WPS Configuration Methods
345 * dev_capab - Device Capabilities
350 * group_capab - Group Capabilities
355 * wps_sec_dev_type_list - WPS secondary device type list
357 * This list includes from 0 to 16 Secondary Device Types as indicated
358 * by wps_sec_dev_type_list_len (8 * number of types).
360 u8 wps_sec_dev_type_list
[WPS_SEC_DEV_TYPE_MAX_LEN
];
363 * wps_sec_dev_type_list_len - Length of secondary device type list
365 size_t wps_sec_dev_type_list_len
;
367 struct wpabuf
*wps_vendor_ext
[P2P_MAX_WPS_VENDOR_EXT
];
370 * wfd_subelems - Wi-Fi Display subelements from WFD IE(s)
372 struct wpabuf
*wfd_subelems
;
375 * vendor_elems - Unrecognized vendor elements
377 * This buffer includes any other vendor element than P2P, WPS, and WFD
378 * IE(s) from the frame that was used to discover the peer.
380 struct wpabuf
*vendor_elems
;
383 * p2ps_instance - P2PS Application Service Info
385 struct wpabuf
*p2ps_instance
;
388 enum p2p_prov_disc_status
{
389 P2P_PROV_DISC_SUCCESS
,
390 P2P_PROV_DISC_TIMEOUT
,
391 P2P_PROV_DISC_REJECTED
,
392 P2P_PROV_DISC_TIMEOUT_JOIN
,
393 P2P_PROV_DISC_INFO_UNAVAILABLE
,
402 * struct p2p_config - P2P configuration
404 * This configuration is provided to the P2P module during initialization with
409 * country - Country code to use in P2P operations
414 * reg_class - Regulatory class for own listen channel
419 * channel - Own listen channel
424 * channel_forced - the listen channel was forced by configuration
425 * or by control interface and cannot be overridden
430 * Regulatory class for own operational channel
435 * op_channel - Own operational channel
440 * cfg_op_channel - Whether op_channel is hardcoded in configuration
445 * channels - Own supported regulatory classes and channels
447 * List of supposerted channels per regulatory class. The regulatory
448 * classes are defined in IEEE Std 802.11-2007 Annex J and the
449 * numbering of the clases depends on the configured country code.
451 struct p2p_channels channels
;
454 * cli_channels - Additional client channels
456 * This list of channels (if any) will be used when advertising local
457 * channels during GO Negotiation or Invitation for the cases where the
458 * local end may become the client. This may allow the peer to become a
459 * GO on additional channels if it supports these options. The main use
460 * case for this is to include passive-scan channels on devices that may
461 * not know their current location and have configured most channels to
462 * not allow initiation of radition (i.e., another device needs to take
463 * master responsibilities).
465 struct p2p_channels cli_channels
;
468 * num_pref_chan - Number of pref_chan entries
470 unsigned int num_pref_chan
;
473 * pref_chan - Preferred channels for GO Negotiation
475 struct p2p_channel
*pref_chan
;
478 * pri_dev_type - Primary Device Type (see WPS)
483 * P2P_SEC_DEVICE_TYPES - Maximum number of secondary device types
485 #define P2P_SEC_DEVICE_TYPES 5
488 * sec_dev_type - Optional secondary device types
490 u8 sec_dev_type
[P2P_SEC_DEVICE_TYPES
][8];
493 * num_sec_dev_types - Number of sec_dev_type entries
495 size_t num_sec_dev_types
;
498 * dev_addr - P2P Device Address
500 u8 dev_addr
[ETH_ALEN
];
503 * dev_name - Device Name
516 * concurrent_operations - Whether concurrent operations are supported
518 int concurrent_operations
;
521 * max_peers - Maximum number of discovered peers to remember
523 * If more peers are discovered, older entries will be removed to make
524 * room for the new ones.
529 * p2p_intra_bss - Intra BSS communication is supported
534 * ssid_postfix - Postfix data to add to the SSID
536 * This data will be added to the end of the SSID after the
537 * DIRECT-<random two octets> prefix.
539 u8 ssid_postfix
[SSID_MAX_LEN
- 9];
542 * ssid_postfix_len - Length of the ssid_postfix data
544 size_t ssid_postfix_len
;
547 * max_listen - Maximum listen duration in ms
549 unsigned int max_listen
;
552 * passphrase_len - Passphrase length (8..63)
554 * This parameter controls the length of the random passphrase that is
555 * generated at the GO.
557 unsigned int passphrase_len
;
560 * cb_ctx - Context to use with callback functions
565 * debug_print - Debug print
566 * @ctx: Callback context from cb_ctx
567 * @level: Debug verbosity level (MSG_*)
568 * @msg: Debug message
570 void (*debug_print
)(void *ctx
, int level
, const char *msg
);
573 /* Callbacks to request lower layer driver operations */
576 * p2p_scan - Request a P2P scan/search
577 * @ctx: Callback context from cb_ctx
579 * @freq: Specific frequency (MHz) to scan or 0 for no restriction
580 * @num_req_dev_types: Number of requested device types
581 * @req_dev_types: Array containing requested device types
582 * @dev_id: Device ID to search for or %NULL to find all devices
583 * @pw_id: Device Password ID
584 * Returns: 0 on success, -1 on failure
586 * This callback function is used to request a P2P scan or search
587 * operation to be completed. Type type argument specifies which type
588 * of scan is to be done. @P2P_SCAN_SOCIAL indicates that only the
589 * social channels (1, 6, 11) should be scanned. @P2P_SCAN_FULL
590 * indicates that all channels are to be scanned. @P2P_SCAN_SPECIFIC
591 * request a scan of a single channel specified by freq.
592 * @P2P_SCAN_SOCIAL_PLUS_ONE request scan of all the social channels
593 * plus one extra channel specified by freq.
595 * The full scan is used for the initial scan to find group owners from
596 * all. The other types are used during search phase scan of the social
597 * channels (with potential variation if the Listen channel of the
598 * target peer is known or if other channels are scanned in steps).
600 * The scan results are returned after this call by calling
601 * p2p_scan_res_handler() for each scan result that has a P2P IE and
602 * then calling p2p_scan_res_handled() to indicate that all scan
603 * results have been indicated.
605 int (*p2p_scan
)(void *ctx
, enum p2p_scan_type type
, int freq
,
606 unsigned int num_req_dev_types
,
607 const u8
*req_dev_types
, const u8
*dev_id
, u16 pw_id
);
610 * send_probe_resp - Transmit a Probe Response frame
611 * @ctx: Callback context from cb_ctx
612 * @buf: Probe Response frame (including the header and body)
613 * @freq: Forced frequency (in MHz) to use or 0.
614 * Returns: 0 on success, -1 on failure
616 * This function is used to reply to Probe Request frames that were
617 * indicated with a call to p2p_probe_req_rx(). The response is to be
618 * sent on the same channel, unless otherwise specified, or to be
619 * dropped if the driver is not listening to Probe Request frames
622 * Alternatively, the responsibility for building the Probe Response
623 * frames in Listen state may be in another system component in which
624 * case this function need to be implemented (i.e., the function
625 * pointer can be %NULL). The WPS and P2P IEs to be added for Probe
626 * Response frames in such a case are available from the
627 * start_listen() callback. It should be noted that the received Probe
628 * Request frames must be indicated by calling p2p_probe_req_rx() even
629 * if this send_probe_resp() is not used.
631 int (*send_probe_resp
)(void *ctx
, const struct wpabuf
*buf
,
635 * send_action - Transmit an Action frame
636 * @ctx: Callback context from cb_ctx
637 * @freq: Frequency in MHz for the channel on which to transmit
638 * @dst: Destination MAC address (Address 1)
639 * @src: Source MAC address (Address 2)
640 * @bssid: BSSID (Address 3)
641 * @buf: Frame body (starting from Category field)
642 * @len: Length of buf in octets
643 * @wait_time: How many msec to wait for a response frame
644 * Returns: 0 on success, -1 on failure
646 * The Action frame may not be transmitted immediately and the status
647 * of the transmission must be reported by calling
648 * p2p_send_action_cb() once the frame has either been transmitted or
649 * it has been dropped due to excessive retries or other failure to
652 int (*send_action
)(void *ctx
, unsigned int freq
, const u8
*dst
,
653 const u8
*src
, const u8
*bssid
, const u8
*buf
,
654 size_t len
, unsigned int wait_time
);
657 * send_action_done - Notify that Action frame sequence was completed
658 * @ctx: Callback context from cb_ctx
660 * This function is called when the Action frame sequence that was
661 * started with send_action() has been completed, i.e., when there is
662 * no need to wait for a response from the destination peer anymore.
664 void (*send_action_done
)(void *ctx
);
667 * start_listen - Start Listen state
668 * @ctx: Callback context from cb_ctx
669 * @freq: Frequency of the listen channel in MHz
670 * @duration: Duration for the Listen state in milliseconds
671 * @probe_resp_ie: IE(s) to be added to Probe Response frames
672 * Returns: 0 on success, -1 on failure
674 * This Listen state may not start immediately since the driver may
675 * have other pending operations to complete first. Once the Listen
676 * state has started, p2p_listen_cb() must be called to notify the P2P
677 * module. Once the Listen state is stopped, p2p_listen_end() must be
678 * called to notify the P2P module that the driver is not in the Listen
681 * If the send_probe_resp() is not used for generating the response,
682 * the IEs from probe_resp_ie need to be added to the end of the Probe
683 * Response frame body. If send_probe_resp() is used, the probe_resp_ie
684 * information can be ignored.
686 int (*start_listen
)(void *ctx
, unsigned int freq
,
687 unsigned int duration
,
688 const struct wpabuf
*probe_resp_ie
);
690 * stop_listen - Stop Listen state
691 * @ctx: Callback context from cb_ctx
693 * This callback can be used to stop a Listen state operation that was
694 * previously requested with start_listen().
696 void (*stop_listen
)(void *ctx
);
699 * get_noa - Get current Notice of Absence attribute payload
700 * @ctx: Callback context from cb_ctx
701 * @interface_addr: P2P Interface Address of the GO
702 * @buf: Buffer for returning NoA
703 * @buf_len: Buffer length in octets
704 * Returns: Number of octets used in buf, 0 to indicate no NoA is being
705 * advertized, or -1 on failure
707 * This function is used to fetch the current Notice of Absence
708 * attribute value from GO.
710 int (*get_noa
)(void *ctx
, const u8
*interface_addr
, u8
*buf
,
713 /* Callbacks to notify events to upper layer management entity */
716 * dev_found - Notification of a found P2P Device
717 * @ctx: Callback context from cb_ctx
718 * @addr: Source address of the message triggering this notification
719 * @info: P2P peer information
720 * @new_device: Inform if the peer is newly found
722 * This callback is used to notify that a new P2P Device has been
723 * found. This may happen, e.g., during Search state based on scan
724 * results or during Listen state based on receive Probe Request and
725 * Group Owner Negotiation Request.
727 void (*dev_found
)(void *ctx
, const u8
*addr
,
728 const struct p2p_peer_info
*info
,
732 * dev_lost - Notification of a lost P2P Device
733 * @ctx: Callback context from cb_ctx
734 * @dev_addr: P2P Device Address of the lost P2P Device
736 * This callback is used to notify that a P2P Device has been deleted.
738 void (*dev_lost
)(void *ctx
, const u8
*dev_addr
);
741 * find_stopped - Notification of a p2p_find operation stopping
742 * @ctx: Callback context from cb_ctx
744 void (*find_stopped
)(void *ctx
);
747 * go_neg_req_rx - Notification of a receive GO Negotiation Request
748 * @ctx: Callback context from cb_ctx
749 * @src: Source address of the message triggering this notification
750 * @dev_passwd_id: WPS Device Password ID
751 * @go_intent: Peer's GO Intent
753 * This callback is used to notify that a P2P Device is requesting
754 * group owner negotiation with us, but we do not have all the
755 * necessary information to start GO Negotiation. This indicates that
756 * the local user has not authorized the connection yet by providing a
757 * PIN or PBC button press. This information can be provided with a
758 * call to p2p_connect().
760 void (*go_neg_req_rx
)(void *ctx
, const u8
*src
, u16 dev_passwd_id
,
764 * go_neg_completed - Notification of GO Negotiation results
765 * @ctx: Callback context from cb_ctx
766 * @res: GO Negotiation results
768 * This callback is used to notify that Group Owner Negotiation has
769 * been completed. Non-zero struct p2p_go_neg_results::status indicates
770 * failed negotiation. In case of success, this function is responsible
771 * for creating a new group interface (or using the existing interface
772 * depending on driver features), setting up the group interface in
773 * proper mode based on struct p2p_go_neg_results::role_go and
774 * initializing WPS provisioning either as a Registrar (if GO) or as an
775 * Enrollee. Successful WPS provisioning must be indicated by calling
776 * p2p_wps_success_cb(). The callee is responsible for timing out group
777 * formation if WPS provisioning cannot be completed successfully
780 void (*go_neg_completed
)(void *ctx
, struct p2p_go_neg_results
*res
);
783 * sd_request - Callback on Service Discovery Request
784 * @ctx: Callback context from cb_ctx
785 * @freq: Frequency (in MHz) of the channel
786 * @sa: Source address of the request
787 * @dialog_token: Dialog token
788 * @update_indic: Service Update Indicator from the source of request
789 * @tlvs: P2P Service Request TLV(s)
790 * @tlvs_len: Length of tlvs buffer in octets
792 * This callback is used to indicate reception of a service discovery
793 * request. Response to the query must be indicated by calling
794 * p2p_sd_response() with the context information from the arguments to
795 * this callback function.
797 * This callback handler can be set to %NULL to indicate that service
798 * discovery is not supported.
800 void (*sd_request
)(void *ctx
, int freq
, const u8
*sa
, u8 dialog_token
,
801 u16 update_indic
, const u8
*tlvs
, size_t tlvs_len
);
804 * sd_response - Callback on Service Discovery Response
805 * @ctx: Callback context from cb_ctx
806 * @sa: Source address of the request
807 * @update_indic: Service Update Indicator from the source of response
808 * @tlvs: P2P Service Response TLV(s)
809 * @tlvs_len: Length of tlvs buffer in octets
811 * This callback is used to indicate reception of a service discovery
812 * response. This callback handler can be set to %NULL if no service
813 * discovery requests are used. The information provided with this call
814 * is replies to the queries scheduled with p2p_sd_request().
816 void (*sd_response
)(void *ctx
, const u8
*sa
, u16 update_indic
,
817 const u8
*tlvs
, size_t tlvs_len
);
820 * prov_disc_req - Callback on Provisiong Discovery Request
821 * @ctx: Callback context from cb_ctx
822 * @peer: Source address of the request
823 * @config_methods: Requested WPS Config Method
824 * @dev_addr: P2P Device Address of the found P2P Device
825 * @pri_dev_type: Primary Device Type
826 * @dev_name: Device Name
827 * @supp_config_methods: Supported configuration Methods
828 * @dev_capab: Device Capabilities
829 * @group_capab: Group Capabilities
830 * @group_id: P2P Group ID (or %NULL if not included)
831 * @group_id_len: Length of P2P Group ID
833 * This callback is used to indicate reception of a Provision Discovery
834 * Request frame that the P2P module accepted.
836 void (*prov_disc_req
)(void *ctx
, const u8
*peer
, u16 config_methods
,
837 const u8
*dev_addr
, const u8
*pri_dev_type
,
838 const char *dev_name
, u16 supp_config_methods
,
839 u8 dev_capab
, u8 group_capab
,
840 const u8
*group_id
, size_t group_id_len
);
843 * prov_disc_resp - Callback on Provisiong Discovery Response
844 * @ctx: Callback context from cb_ctx
845 * @peer: Source address of the response
846 * @config_methods: Value from p2p_prov_disc_req() or 0 on failure
848 * This callback is used to indicate reception of a Provision Discovery
849 * Response frame for a pending request scheduled with
850 * p2p_prov_disc_req(). This callback handler can be set to %NULL if
851 * provision discovery is not used.
853 void (*prov_disc_resp
)(void *ctx
, const u8
*peer
, u16 config_methods
);
856 * prov_disc_fail - Callback on Provision Discovery failure
857 * @ctx: Callback context from cb_ctx
858 * @peer: Source address of the response
859 * @status: Cause of failure, will not be %P2P_PROV_DISC_SUCCESS
860 * @adv_id: If non-zero, then the adv_id of the PD Request
861 * @adv_mac: P2P Device Address of the advertizer
862 * @deferred_session_resp: Deferred session response sent by advertizer
864 * This callback is used to indicate either a failure or no response
865 * to an earlier provision discovery request.
867 * This callback handler can be set to %NULL if provision discovery
868 * is not used or failures do not need to be indicated.
870 void (*prov_disc_fail
)(void *ctx
, const u8
*peer
,
871 enum p2p_prov_disc_status status
,
872 u32 adv_id
, const u8
*adv_mac
,
873 const char *deferred_session_resp
);
876 * invitation_process - Optional callback for processing Invitations
877 * @ctx: Callback context from cb_ctx
878 * @sa: Source address of the Invitation Request
879 * @bssid: P2P Group BSSID from the request or %NULL if not included
880 * @go_dev_addr: GO Device Address from P2P Group ID
881 * @ssid: SSID from P2P Group ID
882 * @ssid_len: Length of ssid buffer in octets
883 * @go: Variable for returning whether the local end is GO in the group
884 * @group_bssid: Buffer for returning P2P Group BSSID (if local end GO)
885 * @force_freq: Variable for returning forced frequency for the group
886 * @persistent_group: Whether this is an invitation to reinvoke a
887 * persistent group (instead of invitation to join an active
889 * @channels: Available operating channels for the group
890 * @dev_pw_id: Device Password ID for NFC static handover or -1 if not
892 * Returns: Status code (P2P_SC_*)
894 * This optional callback can be used to implement persistent reconnect
895 * by allowing automatic restarting of persistent groups without user
896 * interaction. If this callback is not implemented (i.e., is %NULL),
897 * the received Invitation Request frames are replied with
898 * %P2P_SC_REQ_RECEIVED status and indicated to upper layer with the
899 * invitation_result() callback.
901 * If the requested parameters are acceptable and the group is known,
902 * %P2P_SC_SUCCESS may be returned. If the requested group is unknown,
903 * %P2P_SC_FAIL_UNKNOWN_GROUP should be returned. %P2P_SC_REQ_RECEIVED
904 * can be returned if there is not enough data to provide immediate
905 * response, i.e., if some sort of user interaction is needed. The
906 * invitation_received() callback will be called in that case
907 * immediately after this call.
909 u8 (*invitation_process
)(void *ctx
, const u8
*sa
, const u8
*bssid
,
910 const u8
*go_dev_addr
, const u8
*ssid
,
911 size_t ssid_len
, int *go
, u8
*group_bssid
,
912 int *force_freq
, int persistent_group
,
913 const struct p2p_channels
*channels
,
917 * invitation_received - Callback on Invitation Request RX
918 * @ctx: Callback context from cb_ctx
919 * @sa: Source address of the Invitation Request
920 * @bssid: P2P Group BSSID or %NULL if not received
921 * @ssid: SSID of the group
922 * @ssid_len: Length of ssid in octets
923 * @go_dev_addr: GO Device Address
924 * @status: Response Status
925 * @op_freq: Operational frequency for the group
927 * This callback is used to indicate sending of an Invitation Response
928 * for a received Invitation Request. If status == 0 (success), the
929 * upper layer code is responsible for starting the group. status == 1
930 * indicates need to get user authorization for the group. Other status
931 * values indicate that the invitation request was rejected.
933 void (*invitation_received
)(void *ctx
, const u8
*sa
, const u8
*bssid
,
934 const u8
*ssid
, size_t ssid_len
,
935 const u8
*go_dev_addr
, u8 status
,
939 * invitation_result - Callback on Invitation result
940 * @ctx: Callback context from cb_ctx
941 * @status: Negotiation result (Status Code)
942 * @bssid: P2P Group BSSID or %NULL if not received
943 * @channels: Available operating channels for the group
944 * @addr: Peer address
945 * @freq: Frequency (in MHz) indicated during invitation or 0
946 * @peer_oper_freq: Operating frequency (in MHz) advertized by the peer
947 * during invitation or 0
949 * This callback is used to indicate result of an Invitation procedure
950 * started with a call to p2p_invite(). The indicated status code is
951 * the value received from the peer in Invitation Response with 0
952 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a
953 * local failure in transmitting the Invitation Request.
955 void (*invitation_result
)(void *ctx
, int status
, const u8
*bssid
,
956 const struct p2p_channels
*channels
,
957 const u8
*addr
, int freq
, int peer_oper_freq
);
960 * go_connected - Check whether we are connected to a GO
961 * @ctx: Callback context from cb_ctx
962 * @dev_addr: P2P Device Address of a GO
963 * Returns: 1 if we are connected as a P2P client to the specified GO
966 int (*go_connected
)(void *ctx
, const u8
*dev_addr
);
969 * presence_resp - Callback on Presence Response
970 * @ctx: Callback context from cb_ctx
971 * @src: Source address (GO's P2P Interface Address)
972 * @status: Result of the request (P2P_SC_*)
973 * @noa: Returned NoA value
974 * @noa_len: Length of the NoA buffer in octets
976 void (*presence_resp
)(void *ctx
, const u8
*src
, u8 status
,
977 const u8
*noa
, size_t noa_len
);
980 * is_concurrent_session_active - Check whether concurrent session is
981 * active on other virtual interfaces
982 * @ctx: Callback context from cb_ctx
983 * Returns: 1 if concurrent session is active on other virtual interface
986 int (*is_concurrent_session_active
)(void *ctx
);
989 * is_p2p_in_progress - Check whether P2P operation is in progress
990 * @ctx: Callback context from cb_ctx
991 * Returns: 1 if P2P operation (e.g., group formation) is in progress
994 int (*is_p2p_in_progress
)(void *ctx
);
997 * Determine if we have a persistent group we share with remote peer
998 * and allocate interface for this group if needed
999 * @ctx: Callback context from cb_ctx
1000 * @addr: Peer device address to search for
1001 * @ssid: Persistent group SSID or %NULL if any
1002 * @ssid_len: Length of @ssid
1003 * @go_dev_addr: Buffer for returning GO P2P Device Address
1004 * @ret_ssid: Buffer for returning group SSID
1005 * @ret_ssid_len: Buffer for returning length of @ssid
1006 * @intended_iface_addr: Buffer for returning intended iface address
1007 * Returns: 1 if a matching persistent group was found, 0 otherwise
1009 int (*get_persistent_group
)(void *ctx
, const u8
*addr
, const u8
*ssid
,
1010 size_t ssid_len
, u8
*go_dev_addr
,
1011 u8
*ret_ssid
, size_t *ret_ssid_len
,
1012 u8
*intended_iface_addr
);
1015 * Get information about a possible local GO role
1016 * @ctx: Callback context from cb_ctx
1017 * @intended_addr: Buffer for returning intended GO interface address
1018 * @ssid: Buffer for returning group SSID
1019 * @ssid_len: Buffer for returning length of @ssid
1020 * @group_iface: Buffer for returning whether a separate group interface
1022 * Returns: 1 if GO info found, 0 otherwise
1024 * This is used to compose New Group settings (SSID, and intended
1025 * address) during P2PS provisioning if results of provisioning *might*
1026 * result in our being an autonomous GO.
1028 int (*get_go_info
)(void *ctx
, u8
*intended_addr
,
1029 u8
*ssid
, size_t *ssid_len
, int *group_iface
);
1032 * remove_stale_groups - Remove stale P2PS groups
1034 * Because P2PS stages *potential* GOs, and remote devices can remove
1035 * credentials unilaterally, we need to make sure we don't let stale
1036 * unusable groups build up.
1038 int (*remove_stale_groups
)(void *ctx
, const u8
*peer
, const u8
*go
,
1039 const u8
*ssid
, size_t ssid_len
);
1042 * p2ps_prov_complete - P2PS provisioning complete
1044 * When P2PS provisioning completes (successfully or not) we must
1045 * transmit all of the results to the upper layers.
1047 void (*p2ps_prov_complete
)(void *ctx
, u8 status
, const u8
*dev
,
1048 const u8
*adv_mac
, const u8
*ses_mac
,
1049 const u8
*grp_mac
, u32 adv_id
, u32 ses_id
,
1050 u8 conncap
, int passwd_id
,
1051 const u8
*persist_ssid
,
1052 size_t persist_ssid_size
, int response_done
,
1053 int prov_start
, const char *session_info
,
1054 const u8
*feat_cap
, size_t feat_cap_len
);
1057 * prov_disc_resp_cb - Callback for indicating completion of PD Response
1058 * @ctx: Callback context from cb_ctx
1059 * Returns: 1 if operation was started, 0 otherwise
1061 * This callback can be used to perform any pending actions after
1062 * provisioning. It is mainly used for P2PS pending group creation.
1064 int (*prov_disc_resp_cb
)(void *ctx
);
1067 * p2ps_group_capability - Determine group capability
1069 * This function can be used to determine group capability based on
1070 * information from P2PS PD exchange and the current state of ongoing
1071 * groups and driver capabilities.
1073 * P2PS_SETUP_* bitmap is used as the parameters and return value.
1075 u8 (*p2ps_group_capability
)(void *ctx
, u8 incoming
, u8 role
);
1078 * get_pref_freq_list - Get preferred frequency list for an interface
1079 * @ctx: Callback context from cb_ctx
1080 * @go: Whether the use if for GO role
1081 * @len: Length of freq_list in entries (both IN and OUT)
1082 * @freq_list: Buffer for returning the preferred frequencies (MHz)
1083 * Returns: 0 on success, -1 on failure
1085 * This function can be used to query the preferred frequency list from
1086 * the driver specific to a particular interface type.
1088 int (*get_pref_freq_list
)(void *ctx
, int go
,
1089 unsigned int *len
, unsigned int *freq_list
);
1093 /* P2P module initialization/deinitialization */
1096 * p2p_init - Initialize P2P module
1097 * @cfg: P2P module configuration
1098 * Returns: Pointer to private data or %NULL on failure
1100 * This function is used to initialize global P2P module context (one per
1101 * device). The P2P module will keep a copy of the configuration data, so the
1102 * caller does not need to maintain this structure. However, the callback
1103 * functions and the context parameters to them must be kept available until
1104 * the P2P module is deinitialized with p2p_deinit().
1106 struct p2p_data
* p2p_init(const struct p2p_config
*cfg
);
1109 * p2p_deinit - Deinitialize P2P module
1110 * @p2p: P2P module context from p2p_init()
1112 void p2p_deinit(struct p2p_data
*p2p
);
1115 * p2p_flush - Flush P2P module state
1116 * @p2p: P2P module context from p2p_init()
1118 * This command removes the P2P module state like peer device entries.
1120 void p2p_flush(struct p2p_data
*p2p
);
1123 * p2p_unauthorize - Unauthorize the specified peer device
1124 * @p2p: P2P module context from p2p_init()
1125 * @addr: P2P peer entry to be unauthorized
1126 * Returns: 0 on success, -1 on failure
1128 * This command removes any connection authorization from the specified P2P
1129 * peer device address. This can be used, e.g., to cancel effect of a previous
1130 * p2p_authorize() or p2p_connect() call that has not yet resulted in completed
1133 int p2p_unauthorize(struct p2p_data
*p2p
, const u8
*addr
);
1136 * p2p_set_dev_name - Set device name
1137 * @p2p: P2P module context from p2p_init()
1138 * Returns: 0 on success, -1 on failure
1140 * This function can be used to update the P2P module configuration with
1141 * information that was not available at the time of the p2p_init() call.
1143 int p2p_set_dev_name(struct p2p_data
*p2p
, const char *dev_name
);
1145 int p2p_set_manufacturer(struct p2p_data
*p2p
, const char *manufacturer
);
1146 int p2p_set_model_name(struct p2p_data
*p2p
, const char *model_name
);
1147 int p2p_set_model_number(struct p2p_data
*p2p
, const char *model_number
);
1148 int p2p_set_serial_number(struct p2p_data
*p2p
, const char *serial_number
);
1150 void p2p_set_config_methods(struct p2p_data
*p2p
, u16 config_methods
);
1151 void p2p_set_uuid(struct p2p_data
*p2p
, const u8
*uuid
);
1154 * p2p_set_pri_dev_type - Set primary device type
1155 * @p2p: P2P module context from p2p_init()
1156 * Returns: 0 on success, -1 on failure
1158 * This function can be used to update the P2P module configuration with
1159 * information that was not available at the time of the p2p_init() call.
1161 int p2p_set_pri_dev_type(struct p2p_data
*p2p
, const u8
*pri_dev_type
);
1164 * p2p_set_sec_dev_types - Set secondary device types
1165 * @p2p: P2P module context from p2p_init()
1166 * Returns: 0 on success, -1 on failure
1168 * This function can be used to update the P2P module configuration with
1169 * information that was not available at the time of the p2p_init() call.
1171 int p2p_set_sec_dev_types(struct p2p_data
*p2p
, const u8 dev_types
[][8],
1172 size_t num_dev_types
);
1174 int p2p_set_country(struct p2p_data
*p2p
, const char *country
);
1177 /* Commands from upper layer management entity */
1179 enum p2p_discovery_type
{
1180 P2P_FIND_START_WITH_FULL
,
1181 P2P_FIND_ONLY_SOCIAL
,
1182 P2P_FIND_PROGRESSIVE
1186 * p2p_find - Start P2P Find (Device Discovery)
1187 * @p2p: P2P module context from p2p_init()
1188 * @timeout: Timeout for find operation in seconds or 0 for no timeout
1189 * @type: Device Discovery type
1190 * @num_req_dev_types: Number of requested device types
1191 * @req_dev_types: Requested device types array, must be an array
1192 * containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no
1193 * requested device types.
1194 * @dev_id: Device ID to search for or %NULL to find all devices
1195 * @search_delay: Extra delay in milliseconds between search iterations
1196 * @seek_count: Number of ASP Service Strings in the seek_string array
1197 * @seek_string: ASP Service Strings to query for in Probe Requests
1198 * @freq: Requested first scan frequency (in MHz) to modify type ==
1199 * P2P_FIND_START_WITH_FULL behavior. 0 = Use normal full scan.
1200 * If p2p_find is already in progress, this parameter is ignored and full
1201 * scan will be executed.
1202 * Returns: 0 on success, -1 on failure
1204 int p2p_find(struct p2p_data
*p2p
, unsigned int timeout
,
1205 enum p2p_discovery_type type
,
1206 unsigned int num_req_dev_types
, const u8
*req_dev_types
,
1207 const u8
*dev_id
, unsigned int search_delay
,
1208 u8 seek_count
, const char **seek_string
, int freq
);
1211 * p2p_notify_scan_trigger_status - Indicate scan trigger status
1212 * @p2p: P2P module context from p2p_init()
1213 * @status: 0 on success, -1 on failure
1215 void p2p_notify_scan_trigger_status(struct p2p_data
*p2p
, int status
);
1218 * p2p_stop_find - Stop P2P Find (Device Discovery)
1219 * @p2p: P2P module context from p2p_init()
1221 void p2p_stop_find(struct p2p_data
*p2p
);
1224 * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq
1225 * @p2p: P2P module context from p2p_init()
1226 * @freq: Frequency in MHz for next operation
1228 * This is like p2p_stop_find(), but Listen state is not stopped if we are
1229 * already on the same frequency.
1231 void p2p_stop_find_for_freq(struct p2p_data
*p2p
, int freq
);
1234 * p2p_listen - Start P2P Listen state for specified duration
1235 * @p2p: P2P module context from p2p_init()
1236 * @timeout: Listen state duration in milliseconds
1237 * Returns: 0 on success, -1 on failure
1239 * This function can be used to request the P2P module to keep the device
1240 * discoverable on the listen channel for an extended set of time. At least in
1241 * its current form, this is mainly used for testing purposes and may not be of
1242 * much use for normal P2P operations.
1244 int p2p_listen(struct p2p_data
*p2p
, unsigned int timeout
);
1247 * p2p_stop_listen - Stop P2P Listen
1248 * @p2p: P2P module context from p2p_init()
1250 void p2p_stop_listen(struct p2p_data
*p2p
);
1253 * p2p_connect - Start P2P group formation (GO negotiation)
1254 * @p2p: P2P module context from p2p_init()
1255 * @peer_addr: MAC address of the peer P2P client
1256 * @wps_method: WPS method to be used in provisioning
1257 * @go_intent: Local GO intent value (1..15)
1258 * @own_interface_addr: Intended interface address to use with the group
1259 * @force_freq: The only allowed channel frequency in MHz or 0
1260 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
1261 * persistent group without persistent reconnect, 2 = persistent group with
1262 * persistent reconnect)
1263 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
1265 * @force_ssid_len: Length of $force_ssid buffer
1266 * @pd_before_go_neg: Whether to send Provision Discovery prior to GO
1267 * Negotiation as an interoperability workaround when initiating group
1269 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if
1271 * Returns: 0 on success, -1 on failure
1273 int p2p_connect(struct p2p_data
*p2p
, const u8
*peer_addr
,
1274 enum p2p_wps_method wps_method
,
1275 int go_intent
, const u8
*own_interface_addr
,
1276 unsigned int force_freq
, int persistent_group
,
1277 const u8
*force_ssid
, size_t force_ssid_len
,
1278 int pd_before_go_neg
, unsigned int pref_freq
, u16 oob_pw_id
);
1281 * p2p_authorize - Authorize P2P group formation (GO negotiation)
1282 * @p2p: P2P module context from p2p_init()
1283 * @peer_addr: MAC address of the peer P2P client
1284 * @wps_method: WPS method to be used in provisioning
1285 * @go_intent: Local GO intent value (1..15)
1286 * @own_interface_addr: Intended interface address to use with the group
1287 * @force_freq: The only allowed channel frequency in MHz or 0
1288 * @persistent_group: Whether to create a persistent group (0 = no, 1 =
1289 * persistent group without persistent reconnect, 2 = persistent group with
1290 * persistent reconnect)
1291 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate
1293 * @force_ssid_len: Length of $force_ssid buffer
1294 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if
1296 * Returns: 0 on success, -1 on failure
1298 * This is like p2p_connect(), but the actual group negotiation is not
1299 * initiated automatically, i.e., the other end is expected to do that.
1301 int p2p_authorize(struct p2p_data
*p2p
, const u8
*peer_addr
,
1302 enum p2p_wps_method wps_method
,
1303 int go_intent
, const u8
*own_interface_addr
,
1304 unsigned int force_freq
, int persistent_group
,
1305 const u8
*force_ssid
, size_t force_ssid_len
,
1306 unsigned int pref_freq
, u16 oob_pw_id
);
1309 * p2p_reject - Reject peer device (explicitly block connection attempts)
1310 * @p2p: P2P module context from p2p_init()
1311 * @peer_addr: MAC address of the peer P2P client
1312 * Returns: 0 on success, -1 on failure
1314 int p2p_reject(struct p2p_data
*p2p
, const u8
*peer_addr
);
1317 * p2p_prov_disc_req - Send Provision Discovery Request
1318 * @p2p: P2P module context from p2p_init()
1319 * @peer_addr: MAC address of the peer P2P client
1320 * @p2ps_prov: Provisioning info for P2PS
1321 * @config_methods: WPS Config Methods value (only one bit set)
1322 * @join: Whether this is used by a client joining an active group
1323 * @force_freq: Forced TX frequency for the frame (mainly for the join case)
1324 * @user_initiated_pd: Flag to indicate if initiated by user or not
1325 * Returns: 0 on success, -1 on failure
1327 * This function can be used to request a discovered P2P peer to display a PIN
1328 * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us
1329 * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame
1330 * is transmitted once immediately and if no response is received, the frame
1331 * will be sent again whenever the target device is discovered during device
1332 * dsicovery (start with a p2p_find() call). Response from the peer is
1333 * indicated with the p2p_config::prov_disc_resp() callback.
1335 int p2p_prov_disc_req(struct p2p_data
*p2p
, const u8
*peer_addr
,
1336 struct p2ps_provision
*p2ps_prov
, u16 config_methods
,
1337 int join
, int force_freq
,
1338 int user_initiated_pd
);
1341 * p2p_sd_request - Schedule a service discovery query
1342 * @p2p: P2P module context from p2p_init()
1343 * @dst: Destination peer or %NULL to apply for all peers
1344 * @tlvs: P2P Service Query TLV(s)
1345 * Returns: Reference to the query or %NULL on failure
1347 * Response to the query is indicated with the p2p_config::sd_response()
1350 void * p2p_sd_request(struct p2p_data
*p2p
, const u8
*dst
,
1351 const struct wpabuf
*tlvs
);
1353 #ifdef CONFIG_WIFI_DISPLAY
1354 void * p2p_sd_request_wfd(struct p2p_data
*p2p
, const u8
*dst
,
1355 const struct wpabuf
*tlvs
);
1356 #endif /* CONFIG_WIFI_DISPLAY */
1359 * p2p_sd_cancel_request - Cancel a pending service discovery query
1360 * @p2p: P2P module context from p2p_init()
1361 * @req: Query reference from p2p_sd_request()
1362 * Returns: 0 if request for cancelled; -1 if not found
1364 int p2p_sd_cancel_request(struct p2p_data
*p2p
, void *req
);
1367 * p2p_sd_response - Send response to a service discovery query
1368 * @p2p: P2P module context from p2p_init()
1369 * @freq: Frequency from p2p_config::sd_request() callback
1370 * @dst: Destination address from p2p_config::sd_request() callback
1371 * @dialog_token: Dialog token from p2p_config::sd_request() callback
1372 * @resp_tlvs: P2P Service Response TLV(s)
1374 * This function is called as a response to the request indicated with
1375 * p2p_config::sd_request() callback.
1377 void p2p_sd_response(struct p2p_data
*p2p
, int freq
, const u8
*dst
,
1378 u8 dialog_token
, const struct wpabuf
*resp_tlvs
);
1381 * p2p_sd_service_update - Indicate a change in local services
1382 * @p2p: P2P module context from p2p_init()
1384 * This function needs to be called whenever there is a change in availability
1385 * of the local services. This will increment the Service Update Indicator
1386 * value which will be used in SD Request and Response frames.
1388 void p2p_sd_service_update(struct p2p_data
*p2p
);
1391 enum p2p_invite_role
{
1393 P2P_INVITE_ROLE_ACTIVE_GO
,
1394 P2P_INVITE_ROLE_CLIENT
1398 * p2p_invite - Invite a P2P Device into a group
1399 * @p2p: P2P module context from p2p_init()
1400 * @peer: Device Address of the peer P2P Device
1401 * @role: Local role in the group
1402 * @bssid: Group BSSID or %NULL if not known
1404 * @ssid_len: Length of ssid in octets
1405 * @force_freq: The only allowed channel frequency in MHz or 0
1406 * @go_dev_addr: Forced GO Device Address or %NULL if none
1407 * @persistent_group: Whether this is to reinvoke a persistent group
1408 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if
1410 * @dev_pw_id: Device Password ID from OOB Device Password (NFC) static handover
1411 * case or -1 if not used
1412 * Returns: 0 on success, -1 on failure
1414 int p2p_invite(struct p2p_data
*p2p
, const u8
*peer
, enum p2p_invite_role role
,
1415 const u8
*bssid
, const u8
*ssid
, size_t ssid_len
,
1416 unsigned int force_freq
, const u8
*go_dev_addr
,
1417 int persistent_group
, unsigned int pref_freq
, int dev_pw_id
);
1420 * p2p_presence_req - Request GO presence
1421 * @p2p: P2P module context from p2p_init()
1422 * @go_interface_addr: GO P2P Interface Address
1423 * @own_interface_addr: Own P2P Interface Address for this group
1424 * @freq: Group operating frequence (in MHz)
1425 * @duration1: Preferred presence duration in microseconds
1426 * @interval1: Preferred presence interval in microseconds
1427 * @duration2: Acceptable presence duration in microseconds
1428 * @interval2: Acceptable presence interval in microseconds
1429 * Returns: 0 on success, -1 on failure
1431 * If both duration and interval values are zero, the parameter pair is not
1432 * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0).
1434 int p2p_presence_req(struct p2p_data
*p2p
, const u8
*go_interface_addr
,
1435 const u8
*own_interface_addr
, unsigned int freq
,
1436 u32 duration1
, u32 interval1
, u32 duration2
,
1440 * p2p_ext_listen - Set Extended Listen Timing
1441 * @p2p: P2P module context from p2p_init()
1442 * @freq: Group operating frequence (in MHz)
1443 * @period: Availability period in milliseconds (1-65535; 0 to disable)
1444 * @interval: Availability interval in milliseconds (1-65535; 0 to disable)
1445 * Returns: 0 on success, -1 on failure
1447 * This function can be used to enable or disable (period = interval = 0)
1448 * Extended Listen Timing. When enabled, the P2P Device will become
1449 * discoverable (go into Listen State) every @interval milliseconds for at
1450 * least @period milliseconds.
1452 int p2p_ext_listen(struct p2p_data
*p2p
, unsigned int period
,
1453 unsigned int interval
);
1455 /* Event notifications from upper layer management operations */
1458 * p2p_wps_success_cb - Report successfully completed WPS provisioning
1459 * @p2p: P2P module context from p2p_init()
1460 * @mac_addr: Peer address
1462 * This function is used to report successfully completed WPS provisioning
1463 * during group formation in both GO/Registrar and client/Enrollee roles.
1465 void p2p_wps_success_cb(struct p2p_data
*p2p
, const u8
*mac_addr
);
1468 * p2p_group_formation_failed - Report failed WPS provisioning
1469 * @p2p: P2P module context from p2p_init()
1471 * This function is used to report failed group formation. This can happen
1472 * either due to failed WPS provisioning or due to 15 second timeout during
1473 * the provisioning phase.
1475 void p2p_group_formation_failed(struct p2p_data
*p2p
);
1478 * p2p_get_provisioning_info - Get any stored provisioning info
1479 * @p2p: P2P module context from p2p_init()
1480 * @addr: Peer P2P Device Address
1481 * Returns: WPS provisioning information (WPS config method) or 0 if no
1482 * information is available
1484 * This function is used to retrieve stored WPS provisioning info for the given
1487 u16
p2p_get_provisioning_info(struct p2p_data
*p2p
, const u8
*addr
);
1490 * p2p_clear_provisioning_info - Clear any stored provisioning info
1491 * @p2p: P2P module context from p2p_init()
1492 * @iface_addr: Peer P2P Device Address
1494 * This function is used to clear stored WPS provisioning info for the given
1497 void p2p_clear_provisioning_info(struct p2p_data
*p2p
, const u8
*addr
);
1500 /* Event notifications from lower layer driver operations */
1503 * enum p2p_probe_req_status
1505 * @P2P_PREQ_MALFORMED: frame was not well-formed
1506 * @P2P_PREQ_NOT_LISTEN: device isn't in listen state, frame ignored
1507 * @P2P_PREQ_NOT_P2P: frame was not a P2P probe request
1508 * @P2P_PREQ_P2P_NOT_PROCESSED: frame was P2P but wasn't processed
1509 * @P2P_PREQ_P2P_PROCESSED: frame has been processed by P2P
1511 enum p2p_probe_req_status
{
1513 P2P_PREQ_NOT_LISTEN
,
1515 P2P_PREQ_NOT_PROCESSED
,
1520 * p2p_probe_req_rx - Report reception of a Probe Request frame
1521 * @p2p: P2P module context from p2p_init()
1522 * @addr: Source MAC address
1523 * @dst: Destination MAC address if available or %NULL
1524 * @bssid: BSSID if available or %NULL
1525 * @ie: Information elements from the Probe Request frame body
1526 * @ie_len: Length of ie buffer in octets
1527 * @rx_freq: Probe Request frame RX frequency
1528 * Returns: value indicating the type and status of the probe request
1530 enum p2p_probe_req_status
1531 p2p_probe_req_rx(struct p2p_data
*p2p
, const u8
*addr
, const u8
*dst
,
1532 const u8
*bssid
, const u8
*ie
, size_t ie_len
,
1533 unsigned int rx_freq
);
1536 * p2p_rx_action - Report received Action frame
1537 * @p2p: P2P module context from p2p_init()
1538 * @da: Destination address of the received Action frame
1539 * @sa: Source address of the received Action frame
1540 * @bssid: Address 3 of the received Action frame
1541 * @category: Category of the received Action frame
1542 * @data: Action frame body after the Category field
1543 * @len: Length of the data buffer in octets
1544 * @freq: Frequency (in MHz) on which the frame was received
1546 void p2p_rx_action(struct p2p_data
*p2p
, const u8
*da
, const u8
*sa
,
1547 const u8
*bssid
, u8 category
,
1548 const u8
*data
, size_t len
, int freq
);
1551 * p2p_scan_res_handler - Indicate a P2P scan results
1552 * @p2p: P2P module context from p2p_init()
1553 * @bssid: BSSID of the scan result
1554 * @freq: Frequency of the channel on which the device was found in MHz
1555 * @rx_time: Time when the result was received
1556 * @level: Signal level (signal strength of the received Beacon/Probe Response
1558 * @ies: Pointer to IEs from the scan result
1559 * @ies_len: Length of the ies buffer
1560 * Returns: 0 to continue or 1 to stop scan result indication
1562 * This function is called to indicate a scan result entry with P2P IE from a
1563 * scan requested with struct p2p_config::p2p_scan(). This can be called during
1564 * the actual scan process (i.e., whenever a new device is found) or as a
1565 * sequence of calls after the full scan has been completed. The former option
1566 * can result in optimized operations, but may not be supported by all
1567 * driver/firmware designs. The ies buffer need to include at least the P2P IE,
1568 * but it is recommended to include all IEs received from the device. The
1569 * caller does not need to check that the IEs contain a P2P IE before calling
1570 * this function since frames will be filtered internally if needed.
1572 * This function will return 1 if it wants to stop scan result iteration (and
1573 * scan in general if it is still in progress). This is used to allow faster
1574 * start of a pending operation, e.g., to start a pending GO negotiation.
1576 int p2p_scan_res_handler(struct p2p_data
*p2p
, const u8
*bssid
, int freq
,
1577 struct os_reltime
*rx_time
, int level
, const u8
*ies
,
1581 * p2p_scan_res_handled - Indicate end of scan results
1582 * @p2p: P2P module context from p2p_init()
1584 * This function is called to indicate that all P2P scan results from a scan
1585 * have been reported with zero or more calls to p2p_scan_res_handler(). This
1586 * function must be called as a response to successful
1587 * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler()
1588 * calls stopped iteration.
1590 void p2p_scan_res_handled(struct p2p_data
*p2p
);
1592 enum p2p_send_action_result
{
1593 P2P_SEND_ACTION_SUCCESS
/* Frame was send and acknowledged */,
1594 P2P_SEND_ACTION_NO_ACK
/* Frame was sent, but not acknowledged */,
1595 P2P_SEND_ACTION_FAILED
/* Frame was not sent due to a failure */
1599 * p2p_send_action_cb - Notify TX status of an Action frame
1600 * @p2p: P2P module context from p2p_init()
1601 * @freq: Channel frequency in MHz
1602 * @dst: Destination MAC address (Address 1)
1603 * @src: Source MAC address (Address 2)
1604 * @bssid: BSSID (Address 3)
1605 * @result: Result of the transmission attempt
1607 * This function is used to indicate the result of an Action frame transmission
1608 * that was requested with struct p2p_config::send_action() callback.
1610 void p2p_send_action_cb(struct p2p_data
*p2p
, unsigned int freq
, const u8
*dst
,
1611 const u8
*src
, const u8
*bssid
,
1612 enum p2p_send_action_result result
);
1615 * p2p_listen_cb - Indicate the start of a requested Listen state
1616 * @p2p: P2P module context from p2p_init()
1617 * @freq: Listen channel frequency in MHz
1618 * @duration: Duration for the Listen state in milliseconds
1620 * This function is used to indicate that a Listen state requested with
1621 * struct p2p_config::start_listen() callback has started.
1623 void p2p_listen_cb(struct p2p_data
*p2p
, unsigned int freq
,
1624 unsigned int duration
);
1627 * p2p_listen_end - Indicate the end of a requested Listen state
1628 * @p2p: P2P module context from p2p_init()
1629 * @freq: Listen channel frequency in MHz
1630 * Returns: 0 if no operations were started, 1 if an operation was started
1632 * This function is used to indicate that a Listen state requested with
1633 * struct p2p_config::start_listen() callback has ended.
1635 int p2p_listen_end(struct p2p_data
*p2p
, unsigned int freq
);
1637 void p2p_deauth_notif(struct p2p_data
*p2p
, const u8
*bssid
, u16 reason_code
,
1638 const u8
*ie
, size_t ie_len
);
1640 void p2p_disassoc_notif(struct p2p_data
*p2p
, const u8
*bssid
, u16 reason_code
,
1641 const u8
*ie
, size_t ie_len
);
1644 /* Per-group P2P state for GO */
1649 * struct p2p_group_config - P2P group configuration
1651 * This configuration is provided to the P2P module during initialization of
1652 * the per-group information with p2p_group_init().
1654 struct p2p_group_config
{
1656 * persistent_group - Whether the group is persistent
1657 * 0 = not a persistent group
1658 * 1 = persistent group without persistent reconnect
1659 * 2 = persistent group with persistent reconnect
1661 int persistent_group
;
1664 * interface_addr - P2P Interface Address of the group
1666 u8 interface_addr
[ETH_ALEN
];
1669 * max_clients - Maximum number of clients in the group
1671 unsigned int max_clients
;
1676 u8 ssid
[SSID_MAX_LEN
];
1679 * ssid_len - Length of SSID
1684 * freq - Operating channel of the group
1689 * cb_ctx - Context to use with callback functions
1694 * ie_update - Notification of IE update
1695 * @ctx: Callback context from cb_ctx
1696 * @beacon_ies: P2P IE for Beacon frames or %NULL if no change
1697 * @proberesp_ies: P2P Ie for Probe Response frames
1699 * P2P module uses this callback function to notify whenever the P2P IE
1700 * in Beacon or Probe Response frames should be updated based on group
1703 * The callee is responsible for freeing the returned buffer(s) with
1706 void (*ie_update
)(void *ctx
, struct wpabuf
*beacon_ies
,
1707 struct wpabuf
*proberesp_ies
);
1710 * idle_update - Notification of changes in group idle state
1711 * @ctx: Callback context from cb_ctx
1712 * @idle: Whether the group is idle (no associated stations)
1714 void (*idle_update
)(void *ctx
, int idle
);
1718 * p2p_group_init - Initialize P2P group
1719 * @p2p: P2P module context from p2p_init()
1720 * @config: P2P group configuration (will be freed by p2p_group_deinit())
1721 * Returns: Pointer to private data or %NULL on failure
1723 * This function is used to initialize per-group P2P module context. Currently,
1724 * this is only used to manage GO functionality and P2P clients do not need to
1725 * create an instance of this per-group information.
1727 struct p2p_group
* p2p_group_init(struct p2p_data
*p2p
,
1728 struct p2p_group_config
*config
);
1731 * p2p_group_deinit - Deinitialize P2P group
1732 * @group: P2P group context from p2p_group_init()
1734 void p2p_group_deinit(struct p2p_group
*group
);
1737 * p2p_group_notif_assoc - Notification of P2P client association with GO
1738 * @group: P2P group context from p2p_group_init()
1739 * @addr: Interface address of the P2P client
1740 * @ie: IEs from the (Re)association Request frame
1741 * @len: Length of the ie buffer in octets
1742 * Returns: 0 on success, -1 on failure
1744 int p2p_group_notif_assoc(struct p2p_group
*group
, const u8
*addr
,
1745 const u8
*ie
, size_t len
);
1748 * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response
1749 * @group: P2P group context from p2p_group_init()
1750 * @status: Status value (P2P_SC_SUCCESS if association succeeded)
1751 * Returns: P2P IE for (Re)association Response or %NULL on failure
1753 * The caller is responsible for freeing the returned buffer with
1756 struct wpabuf
* p2p_group_assoc_resp_ie(struct p2p_group
*group
, u8 status
);
1759 * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO
1760 * @group: P2P group context from p2p_group_init()
1761 * @addr: Interface address of the P2P client
1763 void p2p_group_notif_disassoc(struct p2p_group
*group
, const u8
*addr
);
1766 * p2p_group_notif_formation_done - Notification of completed group formation
1767 * @group: P2P group context from p2p_group_init()
1769 void p2p_group_notif_formation_done(struct p2p_group
*group
);
1772 * p2p_group_notif_noa - Notification of NoA change
1773 * @group: P2P group context from p2p_group_init()
1774 * @noa: Notice of Absence attribute payload, %NULL if none
1775 * @noa_len: Length of noa buffer in octets
1776 * Returns: 0 on success, -1 on failure
1778 * Notify the P2P group management about a new NoA contents. This will be
1779 * inserted into the P2P IEs in Beacon and Probe Response frames with rest of
1780 * the group information.
1782 int p2p_group_notif_noa(struct p2p_group
*group
, const u8
*noa
,
1786 * p2p_group_match_dev_type - Match device types in group with requested type
1787 * @group: P2P group context from p2p_group_init()
1788 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1789 * Returns: 1 on match, 0 on mismatch
1791 * This function can be used to match the Requested Device Type attribute in
1792 * WPS IE with the device types of a group member for deciding whether a GO
1793 * should reply to a Probe Request frame. Match will be reported if the WPS IE
1794 * is not requested any specific device type.
1796 int p2p_group_match_dev_type(struct p2p_group
*group
, struct wpabuf
*wps
);
1799 * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id
1801 int p2p_group_match_dev_id(struct p2p_group
*group
, struct wpabuf
*p2p
);
1804 * p2p_group_go_discover - Send GO Discoverability Request to a group client
1805 * @group: P2P group context from p2p_group_init()
1806 * Returns: 0 on success (frame scheduled); -1 if client was not found
1808 int p2p_group_go_discover(struct p2p_group
*group
, const u8
*dev_id
,
1809 const u8
*searching_dev
, int rx_freq
);
1812 /* Generic helper functions */
1815 * p2p_ie_text - Build text format description of P2P IE
1817 * @buf: Buffer for returning text
1818 * @end: Pointer to the end of the buf area
1819 * Returns: Number of octets written to the buffer or -1 on failure
1821 * This function can be used to parse P2P IE contents into text format
1822 * field=value lines.
1824 int p2p_ie_text(struct wpabuf
*p2p_ie
, char *buf
, char *end
);
1827 * p2p_scan_result_text - Build text format description of P2P IE
1828 * @ies: Information elements from scan results
1829 * @ies_len: ies buffer length in octets
1830 * @buf: Buffer for returning text
1831 * @end: Pointer to the end of the buf area
1832 * Returns: Number of octets written to the buffer or -1 on failure
1834 * This function can be used to parse P2P IE contents into text format
1835 * field=value lines.
1837 int p2p_scan_result_text(const u8
*ies
, size_t ies_len
, char *buf
, char *end
);
1840 * p2p_parse_dev_addr_in_p2p_ie - Parse P2P Device Address from a concatenated
1843 * @dev_addr: Buffer for returning P2P Device Address
1844 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1846 int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf
*p2p_ie
, u8
*dev_addr
);
1849 * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s)
1850 * @ies: Information elements from scan results
1851 * @ies_len: ies buffer length in octets
1852 * @dev_addr: Buffer for returning P2P Device Address
1853 * Returns: 0 on success or -1 if P2P Device Address could not be parsed
1855 int p2p_parse_dev_addr(const u8
*ies
, size_t ies_len
, u8
*dev_addr
);
1858 * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame
1859 * @p2p: P2P module context from p2p_init()
1861 * @buf: Buffer for writing the P2P IE
1862 * @len: Maximum buf length in octets
1863 * @p2p_group: Whether this is for association with a P2P GO
1864 * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none
1865 * Returns: Number of octets written into buf or -1 on failure
1867 int p2p_assoc_req_ie(struct p2p_data
*p2p
, const u8
*bssid
, u8
*buf
,
1868 size_t len
, int p2p_group
, struct wpabuf
*p2p_ie
);
1871 * p2p_scan_ie - Build P2P IE for Probe Request
1872 * @p2p: P2P module context from p2p_init()
1873 * @ies: Buffer for writing P2P IE
1874 * @dev_id: Device ID to search for or %NULL for any
1876 void p2p_scan_ie(struct p2p_data
*p2p
, struct wpabuf
*ies
, const u8
*dev_id
);
1879 * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie
1880 * @p2p: P2P module context from p2p_init()
1881 * Returns: Number of octets that p2p_scan_ie() may add to the buffer
1883 size_t p2p_scan_ie_buf_len(struct p2p_data
*p2p
);
1886 * p2p_go_params - Generate random P2P group parameters
1887 * @p2p: P2P module context from p2p_init()
1888 * @params: Buffer for parameters
1889 * Returns: 0 on success, -1 on failure
1891 int p2p_go_params(struct p2p_data
*p2p
, struct p2p_go_neg_results
*params
);
1894 * p2p_get_group_capab - Get Group Capability from P2P IE data
1895 * @p2p_ie: P2P IE(s) contents
1896 * Returns: Group Capability
1898 u8
p2p_get_group_capab(const struct wpabuf
*p2p_ie
);
1901 * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection
1902 * @p2p_ie: P2P IE(s) contents
1903 * Returns: 0 if cross connection is allow, 1 if not
1905 int p2p_get_cross_connect_disallowed(const struct wpabuf
*p2p_ie
);
1908 * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data
1909 * @p2p_ie: P2P IE(s) contents
1910 * Returns: Pointer to P2P Device Address or %NULL if not included
1912 const u8
* p2p_get_go_dev_addr(const struct wpabuf
*p2p_ie
);
1915 * p2p_get_peer_info - Get P2P peer information
1916 * @p2p: P2P module context from p2p_init()
1917 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
1918 * @next: Whether to select the peer entry following the one indicated by addr
1919 * Returns: Pointer to peer info or %NULL if not found
1921 const struct p2p_peer_info
* p2p_get_peer_info(struct p2p_data
*p2p
,
1922 const u8
*addr
, int next
);
1925 * p2p_get_peer_info_txt - Get internal P2P peer information in text format
1926 * @info: Pointer to P2P peer info from p2p_get_peer_info()
1927 * @buf: Buffer for returning text
1928 * @buflen: Maximum buffer length
1929 * Returns: Number of octets written to the buffer or -1 on failure
1931 * Note: This information is internal to the P2P module and subject to change.
1932 * As such, this should not really be used by external programs for purposes
1933 * other than debugging.
1935 int p2p_get_peer_info_txt(const struct p2p_peer_info
*info
,
1936 char *buf
, size_t buflen
);
1939 * p2p_peer_known - Check whether P2P peer is known
1940 * @p2p: P2P module context from p2p_init()
1941 * @addr: P2P Device Address of the peer
1942 * Returns: 1 if the specified device is in the P2P peer table or 0 if not
1944 int p2p_peer_known(struct p2p_data
*p2p
, const u8
*addr
);
1947 * p2p_set_client_discoverability - Set client discoverability capability
1948 * @p2p: P2P module context from p2p_init()
1949 * @enabled: Whether client discoverability will be enabled
1951 * This function can be used to disable (and re-enable) client discoverability.
1952 * This capability is enabled by default and should not be disabled in normal
1953 * use cases, i.e., this is mainly for testing purposes.
1955 void p2p_set_client_discoverability(struct p2p_data
*p2p
, int enabled
);
1958 * p2p_set_managed_oper - Set managed P2P Device operations capability
1959 * @p2p: P2P module context from p2p_init()
1960 * @enabled: Whether managed P2P Device operations will be enabled
1962 void p2p_set_managed_oper(struct p2p_data
*p2p
, int enabled
);
1965 * p2p_config_get_random_social - Return a random social channel
1967 * @op_class: Selected operating class
1968 * @op_channel: Selected social channel
1969 * Returns: 0 on success, -1 on failure
1971 * This function is used before p2p_init is called. A random social channel
1972 * from supports bands 2.4 GHz (channels 1,6,11) and 60 GHz (channel 2) is
1973 * returned on success.
1975 int p2p_config_get_random_social(struct p2p_config
*p2p
, u8
*op_class
,
1978 int p2p_set_listen_channel(struct p2p_data
*p2p
, u8 reg_class
, u8 channel
,
1981 u8
p2p_get_listen_channel(struct p2p_data
*p2p
);
1983 int p2p_set_ssid_postfix(struct p2p_data
*p2p
, const u8
*postfix
, size_t len
);
1985 int p2p_get_interface_addr(struct p2p_data
*p2p
, const u8
*dev_addr
,
1987 int p2p_get_dev_addr(struct p2p_data
*p2p
, const u8
*iface_addr
,
1990 void p2p_set_peer_filter(struct p2p_data
*p2p
, const u8
*addr
);
1993 * p2p_set_cross_connect - Set cross connection capability
1994 * @p2p: P2P module context from p2p_init()
1995 * @enabled: Whether cross connection will be enabled
1997 void p2p_set_cross_connect(struct p2p_data
*p2p
, int enabled
);
1999 int p2p_get_oper_freq(struct p2p_data
*p2p
, const u8
*iface_addr
);
2002 * p2p_set_intra_bss_dist - Set intra BSS distribution
2003 * @p2p: P2P module context from p2p_init()
2004 * @enabled: Whether intra BSS distribution will be enabled
2006 void p2p_set_intra_bss_dist(struct p2p_data
*p2p
, int enabled
);
2008 int p2p_channels_includes_freq(const struct p2p_channels
*channels
,
2011 int p2p_channels_to_freqs(const struct p2p_channels
*channels
,
2012 int *freq_list
, unsigned int max_len
);
2015 * p2p_supported_freq - Check whether channel is supported for P2P
2016 * @p2p: P2P module context from p2p_init()
2017 * @freq: Channel frequency in MHz
2018 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
2020 int p2p_supported_freq(struct p2p_data
*p2p
, unsigned int freq
);
2023 * p2p_supported_freq_go - Check whether channel is supported for P2P GO operation
2024 * @p2p: P2P module context from p2p_init()
2025 * @freq: Channel frequency in MHz
2026 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
2028 int p2p_supported_freq_go(struct p2p_data
*p2p
, unsigned int freq
);
2031 * p2p_supported_freq_cli - Check whether channel is supported for P2P client operation
2032 * @p2p: P2P module context from p2p_init()
2033 * @freq: Channel frequency in MHz
2034 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P
2036 int p2p_supported_freq_cli(struct p2p_data
*p2p
, unsigned int freq
);
2039 * p2p_get_pref_freq - Get channel from preferred channel list
2040 * @p2p: P2P module context from p2p_init()
2041 * @channels: List of channels
2042 * Returns: Preferred channel
2044 unsigned int p2p_get_pref_freq(struct p2p_data
*p2p
,
2045 const struct p2p_channels
*channels
);
2047 void p2p_update_channel_list(struct p2p_data
*p2p
,
2048 const struct p2p_channels
*chan
,
2049 const struct p2p_channels
*cli_chan
);
2052 * p2p_set_best_channels - Update best channel information
2053 * @p2p: P2P module context from p2p_init()
2054 * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band
2055 * @freq_5: Frequency (MHz) of best channel in 5 GHz band
2056 * @freq_overall: Frequency (MHz) of best channel overall
2058 void p2p_set_best_channels(struct p2p_data
*p2p
, int freq_24
, int freq_5
,
2062 * p2p_set_own_freq_preference - Set own preference for channel
2063 * @p2p: P2P module context from p2p_init()
2064 * @freq: Frequency (MHz) of the preferred channel or 0 if no preference
2066 * This function can be used to set a preference on the operating channel based
2067 * on frequencies used on the other virtual interfaces that share the same
2068 * radio. If non-zero, this is used to try to avoid multi-channel concurrency.
2070 void p2p_set_own_freq_preference(struct p2p_data
*p2p
, int freq
);
2072 const u8
* p2p_get_go_neg_peer(struct p2p_data
*p2p
);
2075 * p2p_get_group_num_members - Get number of members in group
2076 * @group: P2P group context from p2p_group_init()
2077 * Returns: Number of members in the group
2079 unsigned int p2p_get_group_num_members(struct p2p_group
*group
);
2082 * p2p_client_limit_reached - Check if client limit is reached
2083 * @group: P2P group context from p2p_group_init()
2084 * Returns: 1 if no of clients limit reached
2086 int p2p_client_limit_reached(struct p2p_group
*group
);
2089 * p2p_iterate_group_members - Iterate group members
2090 * @group: P2P group context from p2p_group_init()
2091 * @next: iteration pointer, must be a pointer to a void * that is set to %NULL
2092 * on the first call and not modified later
2093 * Returns: A P2P Device Address for each call and %NULL for no more members
2095 const u8
* p2p_iterate_group_members(struct p2p_group
*group
, void **next
);
2098 * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group
2099 * @group: P2P group context from p2p_group_init()
2100 * @addr: P2P Interface Address of the client
2101 * Returns: P2P Device Address of the client if found or %NULL if no match
2104 const u8
* p2p_group_get_dev_addr(struct p2p_group
*group
, const u8
*addr
);
2107 * p2p_group_is_client_connected - Check whether a specific client is connected
2108 * @group: P2P group context from p2p_group_init()
2109 * @addr: P2P Device Address of the client
2110 * Returns: 1 if client is connected or 0 if not
2112 int p2p_group_is_client_connected(struct p2p_group
*group
, const u8
*dev_addr
);
2115 * p2p_group_get_config - Get the group configuration
2116 * @group: P2P group context from p2p_group_init()
2117 * Returns: The group configuration pointer
2119 const struct p2p_group_config
* p2p_group_get_config(struct p2p_group
*group
);
2122 * p2p_loop_on_all_groups - Run the given callback on all groups
2123 * @p2p: P2P module context from p2p_init()
2124 * @group_callback: The callback function pointer
2125 * @user_data: Some user data pointer which can be %NULL
2127 * The group_callback function can stop the iteration by returning 0.
2129 void p2p_loop_on_all_groups(struct p2p_data
*p2p
,
2130 int (*group_callback
)(struct p2p_group
*group
,
2135 * p2p_get_peer_found - Get P2P peer info structure of a found peer
2136 * @p2p: P2P module context from p2p_init()
2137 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer
2138 * @next: Whether to select the peer entry following the one indicated by addr
2139 * Returns: The first P2P peer info available or %NULL if no such peer exists
2141 const struct p2p_peer_info
*
2142 p2p_get_peer_found(struct p2p_data
*p2p
, const u8
*addr
, int next
);
2145 * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions
2146 * @p2p: P2P module context from p2p_init()
2148 void p2p_remove_wps_vendor_extensions(struct p2p_data
*p2p
);
2151 * p2p_add_wps_vendor_extension - Add a WPS vendor extension
2152 * @p2p: P2P module context from p2p_init()
2153 * @vendor_ext: The vendor extensions to add
2154 * Returns: 0 on success, -1 on failure
2156 * The wpabuf structures in the array are owned by the P2P
2157 * module after this call.
2159 int p2p_add_wps_vendor_extension(struct p2p_data
*p2p
,
2160 const struct wpabuf
*vendor_ext
);
2163 * p2p_set_oper_channel - Set the P2P operating channel
2164 * @p2p: P2P module context from p2p_init()
2165 * @op_reg_class: Operating regulatory class to set
2166 * @op_channel: operating channel to set
2167 * @cfg_op_channel : Whether op_channel is hardcoded in configuration
2168 * Returns: 0 on success, -1 on failure
2170 int p2p_set_oper_channel(struct p2p_data
*p2p
, u8 op_reg_class
, u8 op_channel
,
2171 int cfg_op_channel
);
2174 * p2p_set_pref_chan - Set P2P preferred channel list
2175 * @p2p: P2P module context from p2p_init()
2176 * @num_pref_chan: Number of entries in pref_chan list
2177 * @pref_chan: Preferred channels or %NULL to remove preferences
2178 * Returns: 0 on success, -1 on failure
2180 int p2p_set_pref_chan(struct p2p_data
*p2p
, unsigned int num_pref_chan
,
2181 const struct p2p_channel
*pref_chan
);
2184 * p2p_set_no_go_freq - Set no GO channel ranges
2185 * @p2p: P2P module context from p2p_init()
2186 * @list: Channel ranges or %NULL to remove restriction
2187 * Returns: 0 on success, -1 on failure
2189 int p2p_set_no_go_freq(struct p2p_data
*p2p
,
2190 const struct wpa_freq_range_list
*list
);
2193 * p2p_in_progress - Check whether a P2P operation is progress
2194 * @p2p: P2P module context from p2p_init()
2195 * Returns: 0 if P2P module is idle, 1 if an operation is in progress but not
2196 * in search state, or 2 if search state operation is in progress
2198 int p2p_in_progress(struct p2p_data
*p2p
);
2200 const char * p2p_wps_method_text(enum p2p_wps_method method
);
2203 * p2p_set_config_timeout - Set local config timeouts
2204 * @p2p: P2P module context from p2p_init()
2205 * @go_timeout: Time in 10 ms units it takes to start the GO mode
2206 * @client_timeout: Time in 10 ms units it takes to start the client mode
2208 void p2p_set_config_timeout(struct p2p_data
*p2p
, u8 go_timeout
,
2211 int p2p_set_wfd_ie_beacon(struct p2p_data
*p2p
, struct wpabuf
*ie
);
2212 int p2p_set_wfd_ie_probe_req(struct p2p_data
*p2p
, struct wpabuf
*ie
);
2213 int p2p_set_wfd_ie_probe_resp(struct p2p_data
*p2p
, struct wpabuf
*ie
);
2214 int p2p_set_wfd_ie_assoc_req(struct p2p_data
*p2p
, struct wpabuf
*ie
);
2215 int p2p_set_wfd_ie_invitation(struct p2p_data
*p2p
, struct wpabuf
*ie
);
2216 int p2p_set_wfd_ie_prov_disc_req(struct p2p_data
*p2p
, struct wpabuf
*ie
);
2217 int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data
*p2p
, struct wpabuf
*ie
);
2218 int p2p_set_wfd_ie_go_neg(struct p2p_data
*p2p
, struct wpabuf
*ie
);
2219 int p2p_set_wfd_dev_info(struct p2p_data
*p2p
, const struct wpabuf
*elem
);
2220 int p2p_set_wfd_assoc_bssid(struct p2p_data
*p2p
, const struct wpabuf
*elem
);
2221 int p2p_set_wfd_coupled_sink_info(struct p2p_data
*p2p
,
2222 const struct wpabuf
*elem
);
2223 struct wpabuf
* wifi_display_encaps(struct wpabuf
*subelems
);
2226 * p2p_set_disc_int - Set min/max discoverable interval for p2p_find
2227 * @p2p: P2P module context from p2p_init()
2228 * @min_disc_int: minDiscoverableInterval (in units of 100 TU); default 1
2229 * @max_disc_int: maxDiscoverableInterval (in units of 100 TU); default 3
2230 * @max_disc_tu: Maximum number of TUs (1.024 ms) for discoverable interval; or
2232 * Returns: 0 on success, or -1 on failure
2234 * This function can be used to configure minDiscoverableInterval and
2235 * maxDiscoverableInterval parameters for the Listen state during device
2236 * discovery (p2p_find). A random number of 100 TU units is picked for each
2237 * Listen state iteration from [min_disc_int,max_disc_int] range.
2239 * max_disc_tu can be used to futher limit the discoverable duration. However,
2240 * it should be noted that use of this parameter is not recommended since it
2241 * would not be compliant with the P2P specification.
2243 int p2p_set_disc_int(struct p2p_data
*p2p
, int min_disc_int
, int max_disc_int
,
2247 * p2p_get_state_txt - Get current P2P state for debug purposes
2248 * @p2p: P2P module context from p2p_init()
2249 * Returns: Name of the current P2P module state
2251 * It should be noted that the P2P module state names are internal information
2252 * and subject to change at any point, i.e., this information should be used
2253 * mainly for debugging purposes.
2255 const char * p2p_get_state_txt(struct p2p_data
*p2p
);
2257 struct wpabuf
* p2p_build_nfc_handover_req(struct p2p_data
*p2p
,
2259 const u8
*go_dev_addr
,
2260 const u8
*ssid
, size_t ssid_len
);
2261 struct wpabuf
* p2p_build_nfc_handover_sel(struct p2p_data
*p2p
,
2263 const u8
*go_dev_addr
,
2264 const u8
*ssid
, size_t ssid_len
);
2266 struct p2p_nfc_params
{
2274 NO_ACTION
, JOIN_GROUP
, AUTH_JOIN
, INIT_GO_NEG
, RESP_GO_NEG
,
2275 BOTH_GO
, PEER_CLIENT
2277 struct p2p_peer_info
*peer
;
2278 u8 oob_dev_pw
[WPS_OOB_PUBKEY_HASH_LEN
+ 2 +
2279 WPS_OOB_DEVICE_PASSWORD_LEN
];
2280 size_t oob_dev_pw_len
;
2282 u8 go_dev_addr
[ETH_ALEN
];
2283 u8 go_ssid
[SSID_MAX_LEN
];
2287 int p2p_process_nfc_connection_handover(struct p2p_data
*p2p
,
2288 struct p2p_nfc_params
*params
);
2290 void p2p_set_authorized_oob_dev_pw_id(struct p2p_data
*p2p
, u16 dev_pw_id
,
2292 const u8
*own_interface_addr
);
2294 int p2p_set_passphrase_len(struct p2p_data
*p2p
, unsigned int len
);
2296 void p2p_loop_on_known_peers(struct p2p_data
*p2p
,
2297 void (*peer_callback
)(struct p2p_peer_info
*peer
,
2301 void p2p_set_vendor_elems(struct p2p_data
*p2p
, struct wpabuf
**vendor_elem
);
2303 void p2p_set_intended_addr(struct p2p_data
*p2p
, const u8
*intended_addr
);
2305 struct p2ps_advertisement
*
2306 p2p_service_p2ps_id(struct p2p_data
*p2p
, u32 adv_id
);
2307 int p2p_service_add_asp(struct p2p_data
*p2p
, int auto_accept
, u32 adv_id
,
2308 const char *adv_str
, u8 svc_state
,
2309 u16 config_methods
, const char *svc_info
,
2310 const u8
*cpt_priority
);
2311 int p2p_service_del_asp(struct p2p_data
*p2p
, u32 adv_id
);
2312 void p2p_service_flush_asp(struct p2p_data
*p2p
);
2313 struct p2ps_advertisement
* p2p_get_p2ps_adv_list(struct p2p_data
*p2p
);
2316 * p2p_expire_peers - Periodic cleanup function to expire peers
2317 * @p2p: P2P module context from p2p_init()
2319 * This is a cleanup function that the entity calling p2p_init() is
2320 * expected to call periodically to clean up expired peer entries.
2322 void p2p_expire_peers(struct p2p_data
*p2p
);
2324 void p2p_set_own_pref_freq_list(struct p2p_data
*p2p
,
2325 const unsigned int *pref_freq_list
,
2329 * p2p_group_get_common_freqs - Get the group common frequencies
2330 * @group: P2P group context from p2p_group_init()
2331 * @common_freqs: On return will hold the group common frequencies
2332 * @num: On return will hold the number of group common frequencies
2333 * Returns: 0 on success, -1 otherwise
2335 int p2p_group_get_common_freqs(struct p2p_group
*group
, int *common_freqs
,