/* * Wi-Fi Direct - P2P module * Copyright (c) 2009-2010, Atheros Communications * * This software may be distributed under the terms of the BSD license. * See README for more details. */ #ifndef P2P_H #define P2P_H #include "common/ieee802_11_defs.h" #include "wps/wps.h" /* P2P ASP Setup Capability */ #define P2PS_SETUP_NONE 0 #define P2PS_SETUP_NEW BIT(0) #define P2PS_SETUP_CLIENT BIT(1) #define P2PS_SETUP_GROUP_OWNER BIT(2) #define P2PS_WILD_HASH_STR "org.wi-fi.wfds" #define P2PS_HASH_LEN 6 #define P2P_MAX_QUERY_HASH 6 #define P2PS_FEATURE_CAPAB_CPT_MAX 2 /** * P2P_MAX_REG_CLASSES - Maximum number of regulatory classes */ #define P2P_MAX_REG_CLASSES 10 /** * P2P_MAX_REG_CLASS_CHANNELS - Maximum number of channels per regulatory class */ #define P2P_MAX_REG_CLASS_CHANNELS 20 /** * struct p2p_channels - List of supported channels */ struct p2p_channels { /** * struct p2p_reg_class - Supported regulatory class */ struct p2p_reg_class { /** * reg_class - Regulatory class (IEEE 802.11-2007, Annex J) */ u8 reg_class; /** * channel - Supported channels */ u8 channel[P2P_MAX_REG_CLASS_CHANNELS]; /** * channels - Number of channel entries in use */ size_t channels; } reg_class[P2P_MAX_REG_CLASSES]; /** * reg_classes - Number of reg_class entries in use */ size_t reg_classes; }; enum p2p_wps_method { WPS_NOT_READY, WPS_PIN_DISPLAY, WPS_PIN_KEYPAD, WPS_PBC, WPS_NFC, WPS_P2PS }; /** * struct p2p_go_neg_results - P2P Group Owner Negotiation results */ struct p2p_go_neg_results { /** * status - Negotiation result (Status Code) * * 0 (P2P_SC_SUCCESS) indicates success. Non-zero values indicate * failed negotiation. */ int status; /** * role_go - Whether local end is Group Owner */ int role_go; /** * freq - Frequency of the group operational channel in MHz */ int freq; int ht40; int vht; /** * ssid - SSID of the group */ u8 ssid[SSID_MAX_LEN]; /** * ssid_len - Length of SSID in octets */ size_t ssid_len; /** * psk - WPA pre-shared key (256 bits) (GO only) */ u8 psk[32]; /** * psk_set - Whether PSK field is configured (GO only) */ int psk_set; /** * passphrase - WPA2-Personal passphrase for the group (GO only) */ char passphrase[64]; /** * peer_device_addr - P2P Device Address of the peer */ u8 peer_device_addr[ETH_ALEN]; /** * peer_interface_addr - P2P Interface Address of the peer */ u8 peer_interface_addr[ETH_ALEN]; /** * wps_method - WPS method to be used during provisioning */ enum p2p_wps_method wps_method; #define P2P_MAX_CHANNELS 50 /** * freq_list - Zero-terminated list of possible operational channels */ int freq_list[P2P_MAX_CHANNELS]; /** * persistent_group - Whether the group should be made persistent * 0 = not persistent * 1 = persistent group without persistent reconnect * 2 = persistent group with persistent reconnect */ int persistent_group; /** * peer_config_timeout - Peer configuration timeout (in 10 msec units) */ unsigned int peer_config_timeout; }; struct p2ps_provision { /** * status - Remote returned provisioning status code */ int status; /** * adv_id - P2PS Advertisement ID */ u32 adv_id; /** * session_id - P2PS Session ID */ u32 session_id; /** * method - WPS Method (to be) used to establish session */ u16 method; /** * conncap - Connection Capabilities negotiated between P2P peers */ u8 conncap; /** * role - Info about the roles to be used for this connection */ u8 role; /** * session_mac - MAC address of the peer that started the session */ u8 session_mac[ETH_ALEN]; /** * adv_mac - MAC address of the peer advertised the service */ u8 adv_mac[ETH_ALEN]; /** * cpt_mask - Supported Coordination Protocol Transport mask * * A bitwise mask of supported ASP Coordination Protocol Transports. * This property is set together and corresponds with cpt_priority. */ u8 cpt_mask; /** * cpt_priority - Coordination Protocol Transport priority list * * Priorities of supported ASP Coordination Protocol Transports. * This property is set together and corresponds with cpt_mask. * The CPT priority list is 0 terminated. */ u8 cpt_priority[P2PS_FEATURE_CAPAB_CPT_MAX + 1]; /** * info - Vendor defined extra Provisioning information */ char info[0]; }; struct p2ps_advertisement { struct p2ps_advertisement *next; /** * svc_info - Pointer to (internal) Service defined information */ char *svc_info; /** * id - P2PS Advertisement ID */ u32 id; /** * config_methods - WPS Methods which are allowed for this service */ u16 config_methods; /** * state - Current state of the service: 0 - Out Of Service, 1-255 Vendor defined */ u8 state; /** * auto_accept - Automatically Accept provisioning request if possible. */ u8 auto_accept; /** * hash - 6 octet Service Name has to match against incoming Probe Requests */ u8 hash[P2PS_HASH_LEN]; /** * cpt_mask - supported Coordination Protocol Transport mask * * A bitwise mask of supported ASP Coordination Protocol Transports. * This property is set together and corresponds with cpt_priority. */ u8 cpt_mask; /** * cpt_priority - Coordination Protocol Transport priority list * * Priorities of supported ASP Coordinatin Protocol Transports. * This property is set together and corresponds with cpt_mask. * The CPT priority list is 0 terminated. */ u8 cpt_priority[P2PS_FEATURE_CAPAB_CPT_MAX + 1]; /** * svc_name - NULL Terminated UTF-8 Service Name, and svc_info storage */ char svc_name[0]; }; struct p2p_data; enum p2p_scan_type { P2P_SCAN_SOCIAL, P2P_SCAN_FULL, P2P_SCAN_SPECIFIC, P2P_SCAN_SOCIAL_PLUS_ONE }; #define P2P_MAX_WPS_VENDOR_EXT 10 /** * struct p2p_peer_info - P2P peer information */ struct p2p_peer_info { /** * p2p_device_addr - P2P Device Address of the peer */ u8 p2p_device_addr[ETH_ALEN]; /** * pri_dev_type - Primary Device Type */ u8 pri_dev_type[8]; /** * device_name - Device Name (0..32 octets encoded in UTF-8) */ char device_name[WPS_DEV_NAME_MAX_LEN + 1]; /** * manufacturer - Manufacturer (0..64 octets encoded in UTF-8) */ char manufacturer[WPS_MANUFACTURER_MAX_LEN + 1]; /** * model_name - Model Name (0..32 octets encoded in UTF-8) */ char model_name[WPS_MODEL_NAME_MAX_LEN + 1]; /** * model_number - Model Number (0..32 octets encoded in UTF-8) */ char model_number[WPS_MODEL_NUMBER_MAX_LEN + 1]; /** * serial_number - Serial Number (0..32 octets encoded in UTF-8) */ char serial_number[WPS_SERIAL_NUMBER_MAX_LEN + 1]; /** * level - Signal level */ int level; /** * config_methods - WPS Configuration Methods */ u16 config_methods; /** * dev_capab - Device Capabilities */ u8 dev_capab; /** * group_capab - Group Capabilities */ u8 group_capab; /** * wps_sec_dev_type_list - WPS secondary device type list * * This list includes from 0 to 16 Secondary Device Types as indicated * by wps_sec_dev_type_list_len (8 * number of types). */ u8 wps_sec_dev_type_list[WPS_SEC_DEV_TYPE_MAX_LEN]; /** * wps_sec_dev_type_list_len - Length of secondary device type list */ size_t wps_sec_dev_type_list_len; struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT]; /** * wfd_subelems - Wi-Fi Display subelements from WFD IE(s) */ struct wpabuf *wfd_subelems; /** * vendor_elems - Unrecognized vendor elements * * This buffer includes any other vendor element than P2P, WPS, and WFD * IE(s) from the frame that was used to discover the peer. */ struct wpabuf *vendor_elems; /** * p2ps_instance - P2PS Application Service Info */ struct wpabuf *p2ps_instance; }; enum p2p_prov_disc_status { P2P_PROV_DISC_SUCCESS, P2P_PROV_DISC_TIMEOUT, P2P_PROV_DISC_REJECTED, P2P_PROV_DISC_TIMEOUT_JOIN, P2P_PROV_DISC_INFO_UNAVAILABLE, }; struct p2p_channel { u8 op_class; u8 chan; }; /** * struct p2p_config - P2P configuration * * This configuration is provided to the P2P module during initialization with * p2p_init(). */ struct p2p_config { /** * country - Country code to use in P2P operations */ char country[3]; /** * reg_class - Regulatory class for own listen channel */ u8 reg_class; /** * channel - Own listen channel */ u8 channel; /** * channel_forced - the listen channel was forced by configuration * or by control interface and cannot be overridden */ u8 channel_forced; /** * Regulatory class for own operational channel */ u8 op_reg_class; /** * op_channel - Own operational channel */ u8 op_channel; /** * cfg_op_channel - Whether op_channel is hardcoded in configuration */ u8 cfg_op_channel; /** * channels - Own supported regulatory classes and channels * * List of supposerted channels per regulatory class. The regulatory * classes are defined in IEEE Std 802.11-2007 Annex J and the * numbering of the clases depends on the configured country code. */ struct p2p_channels channels; /** * cli_channels - Additional client channels * * This list of channels (if any) will be used when advertising local * channels during GO Negotiation or Invitation for the cases where the * local end may become the client. This may allow the peer to become a * GO on additional channels if it supports these options. The main use * case for this is to include passive-scan channels on devices that may * not know their current location and have configured most channels to * not allow initiation of radition (i.e., another device needs to take * master responsibilities). */ struct p2p_channels cli_channels; /** * num_pref_chan - Number of pref_chan entries */ unsigned int num_pref_chan; /** * pref_chan - Preferred channels for GO Negotiation */ struct p2p_channel *pref_chan; /** * pri_dev_type - Primary Device Type (see WPS) */ u8 pri_dev_type[8]; /** * P2P_SEC_DEVICE_TYPES - Maximum number of secondary device types */ #define P2P_SEC_DEVICE_TYPES 5 /** * sec_dev_type - Optional secondary device types */ u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8]; /** * num_sec_dev_types - Number of sec_dev_type entries */ size_t num_sec_dev_types; /** * dev_addr - P2P Device Address */ u8 dev_addr[ETH_ALEN]; /** * dev_name - Device Name */ char *dev_name; char *manufacturer; char *model_name; char *model_number; char *serial_number; u8 uuid[16]; u16 config_methods; /** * concurrent_operations - Whether concurrent operations are supported */ int concurrent_operations; /** * max_peers - Maximum number of discovered peers to remember * * If more peers are discovered, older entries will be removed to make * room for the new ones. */ size_t max_peers; /** * p2p_intra_bss - Intra BSS communication is supported */ int p2p_intra_bss; /** * ssid_postfix - Postfix data to add to the SSID * * This data will be added to the end of the SSID after the * DIRECT- prefix. */ u8 ssid_postfix[SSID_MAX_LEN - 9]; /** * ssid_postfix_len - Length of the ssid_postfix data */ size_t ssid_postfix_len; /** * max_listen - Maximum listen duration in ms */ unsigned int max_listen; /** * passphrase_len - Passphrase length (8..63) * * This parameter controls the length of the random passphrase that is * generated at the GO. */ unsigned int passphrase_len; /** * cb_ctx - Context to use with callback functions */ void *cb_ctx; /** * debug_print - Debug print * @ctx: Callback context from cb_ctx * @level: Debug verbosity level (MSG_*) * @msg: Debug message */ void (*debug_print)(void *ctx, int level, const char *msg); /* Callbacks to request lower layer driver operations */ /** * p2p_scan - Request a P2P scan/search * @ctx: Callback context from cb_ctx * @type: Scan type * @freq: Specific frequency (MHz) to scan or 0 for no restriction * @num_req_dev_types: Number of requested device types * @req_dev_types: Array containing requested device types * @dev_id: Device ID to search for or %NULL to find all devices * @pw_id: Device Password ID * Returns: 0 on success, -1 on failure * * This callback function is used to request a P2P scan or search * operation to be completed. Type type argument specifies which type * of scan is to be done. @P2P_SCAN_SOCIAL indicates that only the * social channels (1, 6, 11) should be scanned. @P2P_SCAN_FULL * indicates that all channels are to be scanned. @P2P_SCAN_SPECIFIC * request a scan of a single channel specified by freq. * @P2P_SCAN_SOCIAL_PLUS_ONE request scan of all the social channels * plus one extra channel specified by freq. * * The full scan is used for the initial scan to find group owners from * all. The other types are used during search phase scan of the social * channels (with potential variation if the Listen channel of the * target peer is known or if other channels are scanned in steps). * * The scan results are returned after this call by calling * p2p_scan_res_handler() for each scan result that has a P2P IE and * then calling p2p_scan_res_handled() to indicate that all scan * results have been indicated. */ int (*p2p_scan)(void *ctx, enum p2p_scan_type type, int freq, unsigned int num_req_dev_types, const u8 *req_dev_types, const u8 *dev_id, u16 pw_id); /** * send_probe_resp - Transmit a Probe Response frame * @ctx: Callback context from cb_ctx * @buf: Probe Response frame (including the header and body) * @freq: Forced frequency (in MHz) to use or 0. * Returns: 0 on success, -1 on failure * * This function is used to reply to Probe Request frames that were * indicated with a call to p2p_probe_req_rx(). The response is to be * sent on the same channel, unless otherwise specified, or to be * dropped if the driver is not listening to Probe Request frames * anymore. * * Alternatively, the responsibility for building the Probe Response * frames in Listen state may be in another system component in which * case this function need to be implemented (i.e., the function * pointer can be %NULL). The WPS and P2P IEs to be added for Probe * Response frames in such a case are available from the * start_listen() callback. It should be noted that the received Probe * Request frames must be indicated by calling p2p_probe_req_rx() even * if this send_probe_resp() is not used. */ int (*send_probe_resp)(void *ctx, const struct wpabuf *buf, unsigned int freq); /** * send_action - Transmit an Action frame * @ctx: Callback context from cb_ctx * @freq: Frequency in MHz for the channel on which to transmit * @dst: Destination MAC address (Address 1) * @src: Source MAC address (Address 2) * @bssid: BSSID (Address 3) * @buf: Frame body (starting from Category field) * @len: Length of buf in octets * @wait_time: How many msec to wait for a response frame * Returns: 0 on success, -1 on failure * * The Action frame may not be transmitted immediately and the status * of the transmission must be reported by calling * p2p_send_action_cb() once the frame has either been transmitted or * it has been dropped due to excessive retries or other failure to * transmit. */ int (*send_action)(void *ctx, unsigned int freq, const u8 *dst, const u8 *src, const u8 *bssid, const u8 *buf, size_t len, unsigned int wait_time); /** * send_action_done - Notify that Action frame sequence was completed * @ctx: Callback context from cb_ctx * * This function is called when the Action frame sequence that was * started with send_action() has been completed, i.e., when there is * no need to wait for a response from the destination peer anymore. */ void (*send_action_done)(void *ctx); /** * start_listen - Start Listen state * @ctx: Callback context from cb_ctx * @freq: Frequency of the listen channel in MHz * @duration: Duration for the Listen state in milliseconds * @probe_resp_ie: IE(s) to be added to Probe Response frames * Returns: 0 on success, -1 on failure * * This Listen state may not start immediately since the driver may * have other pending operations to complete first. Once the Listen * state has started, p2p_listen_cb() must be called to notify the P2P * module. Once the Listen state is stopped, p2p_listen_end() must be * called to notify the P2P module that the driver is not in the Listen * state anymore. * * If the send_probe_resp() is not used for generating the response, * the IEs from probe_resp_ie need to be added to the end of the Probe * Response frame body. If send_probe_resp() is used, the probe_resp_ie * information can be ignored. */ int (*start_listen)(void *ctx, unsigned int freq, unsigned int duration, const struct wpabuf *probe_resp_ie); /** * stop_listen - Stop Listen state * @ctx: Callback context from cb_ctx * * This callback can be used to stop a Listen state operation that was * previously requested with start_listen(). */ void (*stop_listen)(void *ctx); /** * get_noa - Get current Notice of Absence attribute payload * @ctx: Callback context from cb_ctx * @interface_addr: P2P Interface Address of the GO * @buf: Buffer for returning NoA * @buf_len: Buffer length in octets * Returns: Number of octets used in buf, 0 to indicate no NoA is being * advertized, or -1 on failure * * This function is used to fetch the current Notice of Absence * attribute value from GO. */ int (*get_noa)(void *ctx, const u8 *interface_addr, u8 *buf, size_t buf_len); /* Callbacks to notify events to upper layer management entity */ /** * dev_found - Notification of a found P2P Device * @ctx: Callback context from cb_ctx * @addr: Source address of the message triggering this notification * @info: P2P peer information * @new_device: Inform if the peer is newly found * * This callback is used to notify that a new P2P Device has been * found. This may happen, e.g., during Search state based on scan * results or during Listen state based on receive Probe Request and * Group Owner Negotiation Request. */ void (*dev_found)(void *ctx, const u8 *addr, const struct p2p_peer_info *info, int new_device); /** * dev_lost - Notification of a lost P2P Device * @ctx: Callback context from cb_ctx * @dev_addr: P2P Device Address of the lost P2P Device * * This callback is used to notify that a P2P Device has been deleted. */ void (*dev_lost)(void *ctx, const u8 *dev_addr); /** * find_stopped - Notification of a p2p_find operation stopping * @ctx: Callback context from cb_ctx */ void (*find_stopped)(void *ctx); /** * go_neg_req_rx - Notification of a receive GO Negotiation Request * @ctx: Callback context from cb_ctx * @src: Source address of the message triggering this notification * @dev_passwd_id: WPS Device Password ID * @go_intent: Peer's GO Intent * * This callback is used to notify that a P2P Device is requesting * group owner negotiation with us, but we do not have all the * necessary information to start GO Negotiation. This indicates that * the local user has not authorized the connection yet by providing a * PIN or PBC button press. This information can be provided with a * call to p2p_connect(). */ void (*go_neg_req_rx)(void *ctx, const u8 *src, u16 dev_passwd_id, u8 go_intent); /** * go_neg_completed - Notification of GO Negotiation results * @ctx: Callback context from cb_ctx * @res: GO Negotiation results * * This callback is used to notify that Group Owner Negotiation has * been completed. Non-zero struct p2p_go_neg_results::status indicates * failed negotiation. In case of success, this function is responsible * for creating a new group interface (or using the existing interface * depending on driver features), setting up the group interface in * proper mode based on struct p2p_go_neg_results::role_go and * initializing WPS provisioning either as a Registrar (if GO) or as an * Enrollee. Successful WPS provisioning must be indicated by calling * p2p_wps_success_cb(). The callee is responsible for timing out group * formation if WPS provisioning cannot be completed successfully * within 15 seconds. */ void (*go_neg_completed)(void *ctx, struct p2p_go_neg_results *res); /** * sd_request - Callback on Service Discovery Request * @ctx: Callback context from cb_ctx * @freq: Frequency (in MHz) of the channel * @sa: Source address of the request * @dialog_token: Dialog token * @update_indic: Service Update Indicator from the source of request * @tlvs: P2P Service Request TLV(s) * @tlvs_len: Length of tlvs buffer in octets * * This callback is used to indicate reception of a service discovery * request. Response to the query must be indicated by calling * p2p_sd_response() with the context information from the arguments to * this callback function. * * This callback handler can be set to %NULL to indicate that service * discovery is not supported. */ void (*sd_request)(void *ctx, int freq, const u8 *sa, u8 dialog_token, u16 update_indic, const u8 *tlvs, size_t tlvs_len); /** * sd_response - Callback on Service Discovery Response * @ctx: Callback context from cb_ctx * @sa: Source address of the request * @update_indic: Service Update Indicator from the source of response * @tlvs: P2P Service Response TLV(s) * @tlvs_len: Length of tlvs buffer in octets * * This callback is used to indicate reception of a service discovery * response. This callback handler can be set to %NULL if no service * discovery requests are used. The information provided with this call * is replies to the queries scheduled with p2p_sd_request(). */ void (*sd_response)(void *ctx, const u8 *sa, u16 update_indic, const u8 *tlvs, size_t tlvs_len); /** * prov_disc_req - Callback on Provisiong Discovery Request * @ctx: Callback context from cb_ctx * @peer: Source address of the request * @config_methods: Requested WPS Config Method * @dev_addr: P2P Device Address of the found P2P Device * @pri_dev_type: Primary Device Type * @dev_name: Device Name * @supp_config_methods: Supported configuration Methods * @dev_capab: Device Capabilities * @group_capab: Group Capabilities * @group_id: P2P Group ID (or %NULL if not included) * @group_id_len: Length of P2P Group ID * * This callback is used to indicate reception of a Provision Discovery * Request frame that the P2P module accepted. */ void (*prov_disc_req)(void *ctx, const u8 *peer, u16 config_methods, const u8 *dev_addr, const u8 *pri_dev_type, const char *dev_name, u16 supp_config_methods, u8 dev_capab, u8 group_capab, const u8 *group_id, size_t group_id_len); /** * prov_disc_resp - Callback on Provisiong Discovery Response * @ctx: Callback context from cb_ctx * @peer: Source address of the response * @config_methods: Value from p2p_prov_disc_req() or 0 on failure * * This callback is used to indicate reception of a Provision Discovery * Response frame for a pending request scheduled with * p2p_prov_disc_req(). This callback handler can be set to %NULL if * provision discovery is not used. */ void (*prov_disc_resp)(void *ctx, const u8 *peer, u16 config_methods); /** * prov_disc_fail - Callback on Provision Discovery failure * @ctx: Callback context from cb_ctx * @peer: Source address of the response * @status: Cause of failure, will not be %P2P_PROV_DISC_SUCCESS * @adv_id: If non-zero, then the adv_id of the PD Request * @adv_mac: P2P Device Address of the advertizer * @deferred_session_resp: Deferred session response sent by advertizer * * This callback is used to indicate either a failure or no response * to an earlier provision discovery request. * * This callback handler can be set to %NULL if provision discovery * is not used or failures do not need to be indicated. */ void (*prov_disc_fail)(void *ctx, const u8 *peer, enum p2p_prov_disc_status status, u32 adv_id, const u8 *adv_mac, const char *deferred_session_resp); /** * invitation_process - Optional callback for processing Invitations * @ctx: Callback context from cb_ctx * @sa: Source address of the Invitation Request * @bssid: P2P Group BSSID from the request or %NULL if not included * @go_dev_addr: GO Device Address from P2P Group ID * @ssid: SSID from P2P Group ID * @ssid_len: Length of ssid buffer in octets * @go: Variable for returning whether the local end is GO in the group * @group_bssid: Buffer for returning P2P Group BSSID (if local end GO) * @force_freq: Variable for returning forced frequency for the group * @persistent_group: Whether this is an invitation to reinvoke a * persistent group (instead of invitation to join an active * group) * @channels: Available operating channels for the group * @dev_pw_id: Device Password ID for NFC static handover or -1 if not * used * Returns: Status code (P2P_SC_*) * * This optional callback can be used to implement persistent reconnect * by allowing automatic restarting of persistent groups without user * interaction. If this callback is not implemented (i.e., is %NULL), * the received Invitation Request frames are replied with * %P2P_SC_REQ_RECEIVED status and indicated to upper layer with the * invitation_result() callback. * * If the requested parameters are acceptable and the group is known, * %P2P_SC_SUCCESS may be returned. If the requested group is unknown, * %P2P_SC_FAIL_UNKNOWN_GROUP should be returned. %P2P_SC_REQ_RECEIVED * can be returned if there is not enough data to provide immediate * response, i.e., if some sort of user interaction is needed. The * invitation_received() callback will be called in that case * immediately after this call. */ u8 (*invitation_process)(void *ctx, const u8 *sa, const u8 *bssid, const u8 *go_dev_addr, const u8 *ssid, size_t ssid_len, int *go, u8 *group_bssid, int *force_freq, int persistent_group, const struct p2p_channels *channels, int dev_pw_id); /** * invitation_received - Callback on Invitation Request RX * @ctx: Callback context from cb_ctx * @sa: Source address of the Invitation Request * @bssid: P2P Group BSSID or %NULL if not received * @ssid: SSID of the group * @ssid_len: Length of ssid in octets * @go_dev_addr: GO Device Address * @status: Response Status * @op_freq: Operational frequency for the group * * This callback is used to indicate sending of an Invitation Response * for a received Invitation Request. If status == 0 (success), the * upper layer code is responsible for starting the group. status == 1 * indicates need to get user authorization for the group. Other status * values indicate that the invitation request was rejected. */ void (*invitation_received)(void *ctx, const u8 *sa, const u8 *bssid, const u8 *ssid, size_t ssid_len, const u8 *go_dev_addr, u8 status, int op_freq); /** * invitation_result - Callback on Invitation result * @ctx: Callback context from cb_ctx * @status: Negotiation result (Status Code) * @bssid: P2P Group BSSID or %NULL if not received * @channels: Available operating channels for the group * @addr: Peer address * @freq: Frequency (in MHz) indicated during invitation or 0 * @peer_oper_freq: Operating frequency (in MHz) advertized by the peer * during invitation or 0 * * This callback is used to indicate result of an Invitation procedure * started with a call to p2p_invite(). The indicated status code is * the value received from the peer in Invitation Response with 0 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a * local failure in transmitting the Invitation Request. */ void (*invitation_result)(void *ctx, int status, const u8 *bssid, const struct p2p_channels *channels, const u8 *addr, int freq, int peer_oper_freq); /** * go_connected - Check whether we are connected to a GO * @ctx: Callback context from cb_ctx * @dev_addr: P2P Device Address of a GO * Returns: 1 if we are connected as a P2P client to the specified GO * or 0 if not. */ int (*go_connected)(void *ctx, const u8 *dev_addr); /** * presence_resp - Callback on Presence Response * @ctx: Callback context from cb_ctx * @src: Source address (GO's P2P Interface Address) * @status: Result of the request (P2P_SC_*) * @noa: Returned NoA value * @noa_len: Length of the NoA buffer in octets */ void (*presence_resp)(void *ctx, const u8 *src, u8 status, const u8 *noa, size_t noa_len); /** * is_concurrent_session_active - Check whether concurrent session is * active on other virtual interfaces * @ctx: Callback context from cb_ctx * Returns: 1 if concurrent session is active on other virtual interface * or 0 if not. */ int (*is_concurrent_session_active)(void *ctx); /** * is_p2p_in_progress - Check whether P2P operation is in progress * @ctx: Callback context from cb_ctx * Returns: 1 if P2P operation (e.g., group formation) is in progress * or 0 if not. */ int (*is_p2p_in_progress)(void *ctx); /** * Determine if we have a persistent group we share with remote peer * and allocate interface for this group if needed * @ctx: Callback context from cb_ctx * @addr: Peer device address to search for * @ssid: Persistent group SSID or %NULL if any * @ssid_len: Length of @ssid * @go_dev_addr: Buffer for returning GO P2P Device Address * @ret_ssid: Buffer for returning group SSID * @ret_ssid_len: Buffer for returning length of @ssid * @intended_iface_addr: Buffer for returning intended iface address * Returns: 1 if a matching persistent group was found, 0 otherwise */ int (*get_persistent_group)(void *ctx, const u8 *addr, const u8 *ssid, size_t ssid_len, u8 *go_dev_addr, u8 *ret_ssid, size_t *ret_ssid_len, u8 *intended_iface_addr); /** * Get information about a possible local GO role * @ctx: Callback context from cb_ctx * @intended_addr: Buffer for returning intended GO interface address * @ssid: Buffer for returning group SSID * @ssid_len: Buffer for returning length of @ssid * @group_iface: Buffer for returning whether a separate group interface * would be used * Returns: 1 if GO info found, 0 otherwise * * This is used to compose New Group settings (SSID, and intended * address) during P2PS provisioning if results of provisioning *might* * result in our being an autonomous GO. */ int (*get_go_info)(void *ctx, u8 *intended_addr, u8 *ssid, size_t *ssid_len, int *group_iface); /** * remove_stale_groups - Remove stale P2PS groups * * Because P2PS stages *potential* GOs, and remote devices can remove * credentials unilaterally, we need to make sure we don't let stale * unusable groups build up. */ int (*remove_stale_groups)(void *ctx, const u8 *peer, const u8 *go, const u8 *ssid, size_t ssid_len); /** * p2ps_prov_complete - P2PS provisioning complete * * When P2PS provisioning completes (successfully or not) we must * transmit all of the results to the upper layers. */ void (*p2ps_prov_complete)(void *ctx, u8 status, const u8 *dev, const u8 *adv_mac, const u8 *ses_mac, const u8 *grp_mac, u32 adv_id, u32 ses_id, u8 conncap, int passwd_id, const u8 *persist_ssid, size_t persist_ssid_size, int response_done, int prov_start, const char *session_info, const u8 *feat_cap, size_t feat_cap_len); /** * prov_disc_resp_cb - Callback for indicating completion of PD Response * @ctx: Callback context from cb_ctx * Returns: 1 if operation was started, 0 otherwise * * This callback can be used to perform any pending actions after * provisioning. It is mainly used for P2PS pending group creation. */ int (*prov_disc_resp_cb)(void *ctx); /** * p2ps_group_capability - Determine group capability * * This function can be used to determine group capability based on * information from P2PS PD exchange and the current state of ongoing * groups and driver capabilities. * * P2PS_SETUP_* bitmap is used as the parameters and return value. */ u8 (*p2ps_group_capability)(void *ctx, u8 incoming, u8 role); }; /* P2P module initialization/deinitialization */ /** * p2p_init - Initialize P2P module * @cfg: P2P module configuration * Returns: Pointer to private data or %NULL on failure * * This function is used to initialize global P2P module context (one per * device). The P2P module will keep a copy of the configuration data, so the * caller does not need to maintain this structure. However, the callback * functions and the context parameters to them must be kept available until * the P2P module is deinitialized with p2p_deinit(). */ struct p2p_data * p2p_init(const struct p2p_config *cfg); /** * p2p_deinit - Deinitialize P2P module * @p2p: P2P module context from p2p_init() */ void p2p_deinit(struct p2p_data *p2p); /** * p2p_flush - Flush P2P module state * @p2p: P2P module context from p2p_init() * * This command removes the P2P module state like peer device entries. */ void p2p_flush(struct p2p_data *p2p); /** * p2p_unauthorize - Unauthorize the specified peer device * @p2p: P2P module context from p2p_init() * @addr: P2P peer entry to be unauthorized * Returns: 0 on success, -1 on failure * * This command removes any connection authorization from the specified P2P * peer device address. This can be used, e.g., to cancel effect of a previous * p2p_authorize() or p2p_connect() call that has not yet resulted in completed * GO Negotiation. */ int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr); /** * p2p_set_dev_name - Set device name * @p2p: P2P module context from p2p_init() * Returns: 0 on success, -1 on failure * * This function can be used to update the P2P module configuration with * information that was not available at the time of the p2p_init() call. */ int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name); int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer); int p2p_set_model_name(struct p2p_data *p2p, const char *model_name); int p2p_set_model_number(struct p2p_data *p2p, const char *model_number); int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number); void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods); void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid); /** * p2p_set_pri_dev_type - Set primary device type * @p2p: P2P module context from p2p_init() * Returns: 0 on success, -1 on failure * * This function can be used to update the P2P module configuration with * information that was not available at the time of the p2p_init() call. */ int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type); /** * p2p_set_sec_dev_types - Set secondary device types * @p2p: P2P module context from p2p_init() * Returns: 0 on success, -1 on failure * * This function can be used to update the P2P module configuration with * information that was not available at the time of the p2p_init() call. */ int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8], size_t num_dev_types); int p2p_set_country(struct p2p_data *p2p, const char *country); /* Commands from upper layer management entity */ enum p2p_discovery_type { P2P_FIND_START_WITH_FULL, P2P_FIND_ONLY_SOCIAL, P2P_FIND_PROGRESSIVE }; /** * p2p_find - Start P2P Find (Device Discovery) * @p2p: P2P module context from p2p_init() * @timeout: Timeout for find operation in seconds or 0 for no timeout * @type: Device Discovery type * @num_req_dev_types: Number of requested device types * @req_dev_types: Requested device types array, must be an array * containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no * requested device types. * @dev_id: Device ID to search for or %NULL to find all devices * @search_delay: Extra delay in milliseconds between search iterations * @seek_count: Number of ASP Service Strings in the seek_string array * @seek_string: ASP Service Strings to query for in Probe Requests * @freq: Requested first scan frequency (in MHz) to modify type == * P2P_FIND_START_WITH_FULL behavior. 0 = Use normal full scan. * If p2p_find is already in progress, this parameter is ignored and full * scan will be executed. * Returns: 0 on success, -1 on failure */ int p2p_find(struct p2p_data *p2p, unsigned int timeout, enum p2p_discovery_type type, unsigned int num_req_dev_types, const u8 *req_dev_types, const u8 *dev_id, unsigned int search_delay, u8 seek_count, const char **seek_string, int freq); /** * p2p_notify_scan_trigger_status - Indicate scan trigger status * @p2p: P2P module context from p2p_init() * @status: 0 on success, -1 on failure */ void p2p_notify_scan_trigger_status(struct p2p_data *p2p, int status); /** * p2p_stop_find - Stop P2P Find (Device Discovery) * @p2p: P2P module context from p2p_init() */ void p2p_stop_find(struct p2p_data *p2p); /** * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq * @p2p: P2P module context from p2p_init() * @freq: Frequency in MHz for next operation * * This is like p2p_stop_find(), but Listen state is not stopped if we are * already on the same frequency. */ void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq); /** * p2p_listen - Start P2P Listen state for specified duration * @p2p: P2P module context from p2p_init() * @timeout: Listen state duration in milliseconds * Returns: 0 on success, -1 on failure * * This function can be used to request the P2P module to keep the device * discoverable on the listen channel for an extended set of time. At least in * its current form, this is mainly used for testing purposes and may not be of * much use for normal P2P operations. */ int p2p_listen(struct p2p_data *p2p, unsigned int timeout); /** * p2p_stop_listen - Stop P2P Listen * @p2p: P2P module context from p2p_init() */ void p2p_stop_listen(struct p2p_data *p2p); /** * p2p_connect - Start P2P group formation (GO negotiation) * @p2p: P2P module context from p2p_init() * @peer_addr: MAC address of the peer P2P client * @wps_method: WPS method to be used in provisioning * @go_intent: Local GO intent value (1..15) * @own_interface_addr: Intended interface address to use with the group * @force_freq: The only allowed channel frequency in MHz or 0 * @persistent_group: Whether to create a persistent group (0 = no, 1 = * persistent group without persistent reconnect, 2 = persistent group with * persistent reconnect) * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate * a new SSID * @force_ssid_len: Length of $force_ssid buffer * @pd_before_go_neg: Whether to send Provision Discovery prior to GO * Negotiation as an interoperability workaround when initiating group * formation * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if * force_freq == 0) * Returns: 0 on success, -1 on failure */ int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr, enum p2p_wps_method wps_method, int go_intent, const u8 *own_interface_addr, unsigned int force_freq, int persistent_group, const u8 *force_ssid, size_t force_ssid_len, int pd_before_go_neg, unsigned int pref_freq, u16 oob_pw_id); /** * p2p_authorize - Authorize P2P group formation (GO negotiation) * @p2p: P2P module context from p2p_init() * @peer_addr: MAC address of the peer P2P client * @wps_method: WPS method to be used in provisioning * @go_intent: Local GO intent value (1..15) * @own_interface_addr: Intended interface address to use with the group * @force_freq: The only allowed channel frequency in MHz or 0 * @persistent_group: Whether to create a persistent group (0 = no, 1 = * persistent group without persistent reconnect, 2 = persistent group with * persistent reconnect) * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate * a new SSID * @force_ssid_len: Length of $force_ssid buffer * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if * force_freq == 0) * Returns: 0 on success, -1 on failure * * This is like p2p_connect(), but the actual group negotiation is not * initiated automatically, i.e., the other end is expected to do that. */ int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr, enum p2p_wps_method wps_method, int go_intent, const u8 *own_interface_addr, unsigned int force_freq, int persistent_group, const u8 *force_ssid, size_t force_ssid_len, unsigned int pref_freq, u16 oob_pw_id); /** * p2p_reject - Reject peer device (explicitly block connection attempts) * @p2p: P2P module context from p2p_init() * @peer_addr: MAC address of the peer P2P client * Returns: 0 on success, -1 on failure */ int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr); /** * p2p_prov_disc_req - Send Provision Discovery Request * @p2p: P2P module context from p2p_init() * @peer_addr: MAC address of the peer P2P client * @p2ps_prov: Provisioning info for P2PS * @config_methods: WPS Config Methods value (only one bit set) * @join: Whether this is used by a client joining an active group * @force_freq: Forced TX frequency for the frame (mainly for the join case) * @user_initiated_pd: Flag to indicate if initiated by user or not * Returns: 0 on success, -1 on failure * * This function can be used to request a discovered P2P peer to display a PIN * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame * is transmitted once immediately and if no response is received, the frame * will be sent again whenever the target device is discovered during device * dsicovery (start with a p2p_find() call). Response from the peer is * indicated with the p2p_config::prov_disc_resp() callback. */ int p2p_prov_disc_req(struct p2p_data *p2p, const u8 *peer_addr, struct p2ps_provision *p2ps_prov, u16 config_methods, int join, int force_freq, int user_initiated_pd); /** * p2p_sd_request - Schedule a service discovery query * @p2p: P2P module context from p2p_init() * @dst: Destination peer or %NULL to apply for all peers * @tlvs: P2P Service Query TLV(s) * Returns: Reference to the query or %NULL on failure * * Response to the query is indicated with the p2p_config::sd_response() * callback. */ void * p2p_sd_request(struct p2p_data *p2p, const u8 *dst, const struct wpabuf *tlvs); #ifdef CONFIG_WIFI_DISPLAY void * p2p_sd_request_wfd(struct p2p_data *p2p, const u8 *dst, const struct wpabuf *tlvs); #endif /* CONFIG_WIFI_DISPLAY */ /** * p2p_sd_cancel_request - Cancel a pending service discovery query * @p2p: P2P module context from p2p_init() * @req: Query reference from p2p_sd_request() * Returns: 0 if request for cancelled; -1 if not found */ int p2p_sd_cancel_request(struct p2p_data *p2p, void *req); /** * p2p_sd_response - Send response to a service discovery query * @p2p: P2P module context from p2p_init() * @freq: Frequency from p2p_config::sd_request() callback * @dst: Destination address from p2p_config::sd_request() callback * @dialog_token: Dialog token from p2p_config::sd_request() callback * @resp_tlvs: P2P Service Response TLV(s) * * This function is called as a response to the request indicated with * p2p_config::sd_request() callback. */ void p2p_sd_response(struct p2p_data *p2p, int freq, const u8 *dst, u8 dialog_token, const struct wpabuf *resp_tlvs); /** * p2p_sd_service_update - Indicate a change in local services * @p2p: P2P module context from p2p_init() * * This function needs to be called whenever there is a change in availability * of the local services. This will increment the Service Update Indicator * value which will be used in SD Request and Response frames. */ void p2p_sd_service_update(struct p2p_data *p2p); enum p2p_invite_role { P2P_INVITE_ROLE_GO, P2P_INVITE_ROLE_ACTIVE_GO, P2P_INVITE_ROLE_CLIENT }; /** * p2p_invite - Invite a P2P Device into a group * @p2p: P2P module context from p2p_init() * @peer: Device Address of the peer P2P Device * @role: Local role in the group * @bssid: Group BSSID or %NULL if not known * @ssid: Group SSID * @ssid_len: Length of ssid in octets * @force_freq: The only allowed channel frequency in MHz or 0 * @go_dev_addr: Forced GO Device Address or %NULL if none * @persistent_group: Whether this is to reinvoke a persistent group * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if * force_freq == 0) * @dev_pw_id: Device Password ID from OOB Device Password (NFC) static handover * case or -1 if not used * Returns: 0 on success, -1 on failure */ int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role, const u8 *bssid, const u8 *ssid, size_t ssid_len, unsigned int force_freq, const u8 *go_dev_addr, int persistent_group, unsigned int pref_freq, int dev_pw_id); /** * p2p_presence_req - Request GO presence * @p2p: P2P module context from p2p_init() * @go_interface_addr: GO P2P Interface Address * @own_interface_addr: Own P2P Interface Address for this group * @freq: Group operating frequence (in MHz) * @duration1: Preferred presence duration in microseconds * @interval1: Preferred presence interval in microseconds * @duration2: Acceptable presence duration in microseconds * @interval2: Acceptable presence interval in microseconds * Returns: 0 on success, -1 on failure * * If both duration and interval values are zero, the parameter pair is not * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0). */ int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr, const u8 *own_interface_addr, unsigned int freq, u32 duration1, u32 interval1, u32 duration2, u32 interval2); /** * p2p_ext_listen - Set Extended Listen Timing * @p2p: P2P module context from p2p_init() * @freq: Group operating frequence (in MHz) * @period: Availability period in milliseconds (1-65535; 0 to disable) * @interval: Availability interval in milliseconds (1-65535; 0 to disable) * Returns: 0 on success, -1 on failure * * This function can be used to enable or disable (period = interval = 0) * Extended Listen Timing. When enabled, the P2P Device will become * discoverable (go into Listen State) every @interval milliseconds for at * least @period milliseconds. */ int p2p_ext_listen(struct p2p_data *p2p, unsigned int period, unsigned int interval); /* Event notifications from upper layer management operations */ /** * p2p_wps_success_cb - Report successfully completed WPS provisioning * @p2p: P2P module context from p2p_init() * @mac_addr: Peer address * * This function is used to report successfully completed WPS provisioning * during group formation in both GO/Registrar and client/Enrollee roles. */ void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr); /** * p2p_group_formation_failed - Report failed WPS provisioning * @p2p: P2P module context from p2p_init() * * This function is used to report failed group formation. This can happen * either due to failed WPS provisioning or due to 15 second timeout during * the provisioning phase. */ void p2p_group_formation_failed(struct p2p_data *p2p); /** * p2p_get_provisioning_info - Get any stored provisioning info * @p2p: P2P module context from p2p_init() * @addr: Peer P2P Device Address * Returns: WPS provisioning information (WPS config method) or 0 if no * information is available * * This function is used to retrieve stored WPS provisioning info for the given * peer. */ u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr); /** * p2p_clear_provisioning_info - Clear any stored provisioning info * @p2p: P2P module context from p2p_init() * @iface_addr: Peer P2P Device Address * * This function is used to clear stored WPS provisioning info for the given * peer. */ void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr); /* Event notifications from lower layer driver operations */ /** * enum p2p_probe_req_status * * @P2P_PREQ_MALFORMED: frame was not well-formed * @P2P_PREQ_NOT_LISTEN: device isn't in listen state, frame ignored * @P2P_PREQ_NOT_P2P: frame was not a P2P probe request * @P2P_PREQ_P2P_NOT_PROCESSED: frame was P2P but wasn't processed * @P2P_PREQ_P2P_PROCESSED: frame has been processed by P2P */ enum p2p_probe_req_status { P2P_PREQ_MALFORMED, P2P_PREQ_NOT_LISTEN, P2P_PREQ_NOT_P2P, P2P_PREQ_NOT_PROCESSED, P2P_PREQ_PROCESSED }; /** * p2p_probe_req_rx - Report reception of a Probe Request frame * @p2p: P2P module context from p2p_init() * @addr: Source MAC address * @dst: Destination MAC address if available or %NULL * @bssid: BSSID if available or %NULL * @ie: Information elements from the Probe Request frame body * @ie_len: Length of ie buffer in octets * @rx_freq: Probe Request frame RX frequency * Returns: value indicating the type and status of the probe request */ enum p2p_probe_req_status p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst, const u8 *bssid, const u8 *ie, size_t ie_len, unsigned int rx_freq); /** * p2p_rx_action - Report received Action frame * @p2p: P2P module context from p2p_init() * @da: Destination address of the received Action frame * @sa: Source address of the received Action frame * @bssid: Address 3 of the received Action frame * @category: Category of the received Action frame * @data: Action frame body after the Category field * @len: Length of the data buffer in octets * @freq: Frequency (in MHz) on which the frame was received */ void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa, const u8 *bssid, u8 category, const u8 *data, size_t len, int freq); /** * p2p_scan_res_handler - Indicate a P2P scan results * @p2p: P2P module context from p2p_init() * @bssid: BSSID of the scan result * @freq: Frequency of the channel on which the device was found in MHz * @rx_time: Time when the result was received * @level: Signal level (signal strength of the received Beacon/Probe Response * frame) * @ies: Pointer to IEs from the scan result * @ies_len: Length of the ies buffer * Returns: 0 to continue or 1 to stop scan result indication * * This function is called to indicate a scan result entry with P2P IE from a * scan requested with struct p2p_config::p2p_scan(). This can be called during * the actual scan process (i.e., whenever a new device is found) or as a * sequence of calls after the full scan has been completed. The former option * can result in optimized operations, but may not be supported by all * driver/firmware designs. The ies buffer need to include at least the P2P IE, * but it is recommended to include all IEs received from the device. The * caller does not need to check that the IEs contain a P2P IE before calling * this function since frames will be filtered internally if needed. * * This function will return 1 if it wants to stop scan result iteration (and * scan in general if it is still in progress). This is used to allow faster * start of a pending operation, e.g., to start a pending GO negotiation. */ int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq, struct os_reltime *rx_time, int level, const u8 *ies, size_t ies_len); /** * p2p_scan_res_handled - Indicate end of scan results * @p2p: P2P module context from p2p_init() * * This function is called to indicate that all P2P scan results from a scan * have been reported with zero or more calls to p2p_scan_res_handler(). This * function must be called as a response to successful * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler() * calls stopped iteration. */ void p2p_scan_res_handled(struct p2p_data *p2p); enum p2p_send_action_result { P2P_SEND_ACTION_SUCCESS /* Frame was send and acknowledged */, P2P_SEND_ACTION_NO_ACK /* Frame was sent, but not acknowledged */, P2P_SEND_ACTION_FAILED /* Frame was not sent due to a failure */ }; /** * p2p_send_action_cb - Notify TX status of an Action frame * @p2p: P2P module context from p2p_init() * @freq: Channel frequency in MHz * @dst: Destination MAC address (Address 1) * @src: Source MAC address (Address 2) * @bssid: BSSID (Address 3) * @result: Result of the transmission attempt * * This function is used to indicate the result of an Action frame transmission * that was requested with struct p2p_config::send_action() callback. */ void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst, const u8 *src, const u8 *bssid, enum p2p_send_action_result result); /** * p2p_listen_cb - Indicate the start of a requested Listen state * @p2p: P2P module context from p2p_init() * @freq: Listen channel frequency in MHz * @duration: Duration for the Listen state in milliseconds * * This function is used to indicate that a Listen state requested with * struct p2p_config::start_listen() callback has started. */ void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq, unsigned int duration); /** * p2p_listen_end - Indicate the end of a requested Listen state * @p2p: P2P module context from p2p_init() * @freq: Listen channel frequency in MHz * Returns: 0 if no operations were started, 1 if an operation was started * * This function is used to indicate that a Listen state requested with * struct p2p_config::start_listen() callback has ended. */ int p2p_listen_end(struct p2p_data *p2p, unsigned int freq); void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code, const u8 *ie, size_t ie_len); void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code, const u8 *ie, size_t ie_len); /* Per-group P2P state for GO */ struct p2p_group; /** * struct p2p_group_config - P2P group configuration * * This configuration is provided to the P2P module during initialization of * the per-group information with p2p_group_init(). */ struct p2p_group_config { /** * persistent_group - Whether the group is persistent * 0 = not a persistent group * 1 = persistent group without persistent reconnect * 2 = persistent group with persistent reconnect */ int persistent_group; /** * interface_addr - P2P Interface Address of the group */ u8 interface_addr[ETH_ALEN]; /** * max_clients - Maximum number of clients in the group */ unsigned int max_clients; /** * ssid - Group SSID */ u8 ssid[SSID_MAX_LEN]; /** * ssid_len - Length of SSID */ size_t ssid_len; /** * freq - Operating channel of the group */ int freq; /** * cb_ctx - Context to use with callback functions */ void *cb_ctx; /** * ie_update - Notification of IE update * @ctx: Callback context from cb_ctx * @beacon_ies: P2P IE for Beacon frames or %NULL if no change * @proberesp_ies: P2P Ie for Probe Response frames * * P2P module uses this callback function to notify whenever the P2P IE * in Beacon or Probe Response frames should be updated based on group * events. * * The callee is responsible for freeing the returned buffer(s) with * wpabuf_free(). */ void (*ie_update)(void *ctx, struct wpabuf *beacon_ies, struct wpabuf *proberesp_ies); /** * idle_update - Notification of changes in group idle state * @ctx: Callback context from cb_ctx * @idle: Whether the group is idle (no associated stations) */ void (*idle_update)(void *ctx, int idle); }; /** * p2p_group_init - Initialize P2P group * @p2p: P2P module context from p2p_init() * @config: P2P group configuration (will be freed by p2p_group_deinit()) * Returns: Pointer to private data or %NULL on failure * * This function is used to initialize per-group P2P module context. Currently, * this is only used to manage GO functionality and P2P clients do not need to * create an instance of this per-group information. */ struct p2p_group * p2p_group_init(struct p2p_data *p2p, struct p2p_group_config *config); /** * p2p_group_deinit - Deinitialize P2P group * @group: P2P group context from p2p_group_init() */ void p2p_group_deinit(struct p2p_group *group); /** * p2p_group_notif_assoc - Notification of P2P client association with GO * @group: P2P group context from p2p_group_init() * @addr: Interface address of the P2P client * @ie: IEs from the (Re)association Request frame * @len: Length of the ie buffer in octets * Returns: 0 on success, -1 on failure */ int p2p_group_notif_assoc(struct p2p_group *group, const u8 *addr, const u8 *ie, size_t len); /** * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response * @group: P2P group context from p2p_group_init() * @status: Status value (P2P_SC_SUCCESS if association succeeded) * Returns: P2P IE for (Re)association Response or %NULL on failure * * The caller is responsible for freeing the returned buffer with * wpabuf_free(). */ struct wpabuf * p2p_group_assoc_resp_ie(struct p2p_group *group, u8 status); /** * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO * @group: P2P group context from p2p_group_init() * @addr: Interface address of the P2P client */ void p2p_group_notif_disassoc(struct p2p_group *group, const u8 *addr); /** * p2p_group_notif_formation_done - Notification of completed group formation * @group: P2P group context from p2p_group_init() */ void p2p_group_notif_formation_done(struct p2p_group *group); /** * p2p_group_notif_noa - Notification of NoA change * @group: P2P group context from p2p_group_init() * @noa: Notice of Absence attribute payload, %NULL if none * @noa_len: Length of noa buffer in octets * Returns: 0 on success, -1 on failure * * Notify the P2P group management about a new NoA contents. This will be * inserted into the P2P IEs in Beacon and Probe Response frames with rest of * the group information. */ int p2p_group_notif_noa(struct p2p_group *group, const u8 *noa, size_t noa_len); /** * p2p_group_match_dev_type - Match device types in group with requested type * @group: P2P group context from p2p_group_init() * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs) * Returns: 1 on match, 0 on mismatch * * This function can be used to match the Requested Device Type attribute in * WPS IE with the device types of a group member for deciding whether a GO * should reply to a Probe Request frame. Match will be reported if the WPS IE * is not requested any specific device type. */ int p2p_group_match_dev_type(struct p2p_group *group, struct wpabuf *wps); /** * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id */ int p2p_group_match_dev_id(struct p2p_group *group, struct wpabuf *p2p); /** * p2p_group_go_discover - Send GO Discoverability Request to a group client * @group: P2P group context from p2p_group_init() * Returns: 0 on success (frame scheduled); -1 if client was not found */ int p2p_group_go_discover(struct p2p_group *group, const u8 *dev_id, const u8 *searching_dev, int rx_freq); /* Generic helper functions */ /** * p2p_ie_text - Build text format description of P2P IE * @p2p_ie: P2P IE * @buf: Buffer for returning text * @end: Pointer to the end of the buf area * Returns: Number of octets written to the buffer or -1 on failure * * This function can be used to parse P2P IE contents into text format * field=value lines. */ int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end); /** * p2p_scan_result_text - Build text format description of P2P IE * @ies: Information elements from scan results * @ies_len: ies buffer length in octets * @buf: Buffer for returning text * @end: Pointer to the end of the buf area * Returns: Number of octets written to the buffer or -1 on failure * * This function can be used to parse P2P IE contents into text format * field=value lines. */ int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end); /** * p2p_parse_dev_addr_in_p2p_ie - Parse P2P Device Address from a concatenated * P2P IE * @p2p_ie: P2P IE * @dev_addr: Buffer for returning P2P Device Address * Returns: 0 on success or -1 if P2P Device Address could not be parsed */ int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr); /** * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s) * @ies: Information elements from scan results * @ies_len: ies buffer length in octets * @dev_addr: Buffer for returning P2P Device Address * Returns: 0 on success or -1 if P2P Device Address could not be parsed */ int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr); /** * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame * @p2p: P2P module context from p2p_init() * @bssid: BSSID * @buf: Buffer for writing the P2P IE * @len: Maximum buf length in octets * @p2p_group: Whether this is for association with a P2P GO * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none * Returns: Number of octets written into buf or -1 on failure */ int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf, size_t len, int p2p_group, struct wpabuf *p2p_ie); /** * p2p_scan_ie - Build P2P IE for Probe Request * @p2p: P2P module context from p2p_init() * @ies: Buffer for writing P2P IE * @dev_id: Device ID to search for or %NULL for any */ void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id); /** * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie * @p2p: P2P module context from p2p_init() * Returns: Number of octets that p2p_scan_ie() may add to the buffer */ size_t p2p_scan_ie_buf_len(struct p2p_data *p2p); /** * p2p_go_params - Generate random P2P group parameters * @p2p: P2P module context from p2p_init() * @params: Buffer for parameters * Returns: 0 on success, -1 on failure */ int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params); /** * p2p_get_group_capab - Get Group Capability from P2P IE data * @p2p_ie: P2P IE(s) contents * Returns: Group Capability */ u8 p2p_get_group_capab(const struct wpabuf *p2p_ie); /** * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection * @p2p_ie: P2P IE(s) contents * Returns: 0 if cross connection is allow, 1 if not */ int p2p_get_cross_connect_disallowed(const struct wpabuf *p2p_ie); /** * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data * @p2p_ie: P2P IE(s) contents * Returns: Pointer to P2P Device Address or %NULL if not included */ const u8 * p2p_get_go_dev_addr(const struct wpabuf *p2p_ie); /** * p2p_get_peer_info - Get P2P peer information * @p2p: P2P module context from p2p_init() * @addr: P2P Device Address of the peer or %NULL to indicate the first peer * @next: Whether to select the peer entry following the one indicated by addr * Returns: Pointer to peer info or %NULL if not found */ const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p, const u8 *addr, int next); /** * p2p_get_peer_info_txt - Get internal P2P peer information in text format * @info: Pointer to P2P peer info from p2p_get_peer_info() * @buf: Buffer for returning text * @buflen: Maximum buffer length * Returns: Number of octets written to the buffer or -1 on failure * * Note: This information is internal to the P2P module and subject to change. * As such, this should not really be used by external programs for purposes * other than debugging. */ int p2p_get_peer_info_txt(const struct p2p_peer_info *info, char *buf, size_t buflen); /** * p2p_peer_known - Check whether P2P peer is known * @p2p: P2P module context from p2p_init() * @addr: P2P Device Address of the peer * Returns: 1 if the specified device is in the P2P peer table or 0 if not */ int p2p_peer_known(struct p2p_data *p2p, const u8 *addr); /** * p2p_set_client_discoverability - Set client discoverability capability * @p2p: P2P module context from p2p_init() * @enabled: Whether client discoverability will be enabled * * This function can be used to disable (and re-enable) client discoverability. * This capability is enabled by default and should not be disabled in normal * use cases, i.e., this is mainly for testing purposes. */ void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled); /** * p2p_set_managed_oper - Set managed P2P Device operations capability * @p2p: P2P module context from p2p_init() * @enabled: Whether managed P2P Device operations will be enabled */ void p2p_set_managed_oper(struct p2p_data *p2p, int enabled); /** * p2p_config_get_random_social - Return a random social channel * @p2p: P2P config * @op_class: Selected operating class * @op_channel: Selected social channel * Returns: 0 on success, -1 on failure * * This function is used before p2p_init is called. A random social channel * from supports bands 2.4 GHz (channels 1,6,11) and 60 GHz (channel 2) is * returned on success. */ int p2p_config_get_random_social(struct p2p_config *p2p, u8 *op_class, u8 *op_channel); int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel, u8 forced); u8 p2p_get_listen_channel(struct p2p_data *p2p); int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len); int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr, u8 *iface_addr); int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr, u8 *dev_addr); void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr); /** * p2p_set_cross_connect - Set cross connection capability * @p2p: P2P module context from p2p_init() * @enabled: Whether cross connection will be enabled */ void p2p_set_cross_connect(struct p2p_data *p2p, int enabled); int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr); /** * p2p_set_intra_bss_dist - Set intra BSS distribution * @p2p: P2P module context from p2p_init() * @enabled: Whether intra BSS distribution will be enabled */ void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled); int p2p_channels_includes_freq(const struct p2p_channels *channels, unsigned int freq); int p2p_channels_to_freqs(const struct p2p_channels *channels, int *freq_list, unsigned int max_len); /** * p2p_supported_freq - Check whether channel is supported for P2P * @p2p: P2P module context from p2p_init() * @freq: Channel frequency in MHz * Returns: 0 if channel not usable for P2P, 1 if usable for P2P */ int p2p_supported_freq(struct p2p_data *p2p, unsigned int freq); /** * p2p_supported_freq_go - Check whether channel is supported for P2P GO operation * @p2p: P2P module context from p2p_init() * @freq: Channel frequency in MHz * Returns: 0 if channel not usable for P2P, 1 if usable for P2P */ int p2p_supported_freq_go(struct p2p_data *p2p, unsigned int freq); /** * p2p_supported_freq_cli - Check whether channel is supported for P2P client operation * @p2p: P2P module context from p2p_init() * @freq: Channel frequency in MHz * Returns: 0 if channel not usable for P2P, 1 if usable for P2P */ int p2p_supported_freq_cli(struct p2p_data *p2p, unsigned int freq); /** * p2p_get_pref_freq - Get channel from preferred channel list * @p2p: P2P module context from p2p_init() * @channels: List of channels * Returns: Preferred channel */ unsigned int p2p_get_pref_freq(struct p2p_data *p2p, const struct p2p_channels *channels); void p2p_update_channel_list(struct p2p_data *p2p, const struct p2p_channels *chan, const struct p2p_channels *cli_chan); /** * p2p_set_best_channels - Update best channel information * @p2p: P2P module context from p2p_init() * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band * @freq_5: Frequency (MHz) of best channel in 5 GHz band * @freq_overall: Frequency (MHz) of best channel overall */ void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5, int freq_overall); /** * p2p_set_own_freq_preference - Set own preference for channel * @p2p: P2P module context from p2p_init() * @freq: Frequency (MHz) of the preferred channel or 0 if no preference * * This function can be used to set a preference on the operating channel based * on frequencies used on the other virtual interfaces that share the same * radio. If non-zero, this is used to try to avoid multi-channel concurrency. */ void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq); const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p); /** * p2p_get_group_num_members - Get number of members in group * @group: P2P group context from p2p_group_init() * Returns: Number of members in the group */ unsigned int p2p_get_group_num_members(struct p2p_group *group); /** * p2p_client_limit_reached - Check if client limit is reached * @group: P2P group context from p2p_group_init() * Returns: 1 if no of clients limit reached */ int p2p_client_limit_reached(struct p2p_group *group); /** * p2p_iterate_group_members - Iterate group members * @group: P2P group context from p2p_group_init() * @next: iteration pointer, must be a pointer to a void * that is set to %NULL * on the first call and not modified later * Returns: A P2P Device Address for each call and %NULL for no more members */ const u8 * p2p_iterate_group_members(struct p2p_group *group, void **next); /** * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group * @group: P2P group context from p2p_group_init() * @addr: P2P Interface Address of the client * Returns: P2P Device Address of the client if found or %NULL if no match * found */ const u8 * p2p_group_get_dev_addr(struct p2p_group *group, const u8 *addr); /** * p2p_group_is_client_connected - Check whether a specific client is connected * @group: P2P group context from p2p_group_init() * @addr: P2P Device Address of the client * Returns: 1 if client is connected or 0 if not */ int p2p_group_is_client_connected(struct p2p_group *group, const u8 *dev_addr); /** * p2p_group_get_config - Get the group configuration * @group: P2P group context from p2p_group_init() * Returns: The group configuration pointer */ const struct p2p_group_config * p2p_group_get_config(struct p2p_group *group); /** * p2p_loop_on_all_groups - Run the given callback on all groups * @p2p: P2P module context from p2p_init() * @group_callback: The callback function pointer * @user_data: Some user data pointer which can be %NULL * * The group_callback function can stop the iteration by returning 0. */ void p2p_loop_on_all_groups(struct p2p_data *p2p, int (*group_callback)(struct p2p_group *group, void *user_data), void *user_data); /** * p2p_get_peer_found - Get P2P peer info structure of a found peer * @p2p: P2P module context from p2p_init() * @addr: P2P Device Address of the peer or %NULL to indicate the first peer * @next: Whether to select the peer entry following the one indicated by addr * Returns: The first P2P peer info available or %NULL if no such peer exists */ const struct p2p_peer_info * p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next); /** * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions * @p2p: P2P module context from p2p_init() */ void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p); /** * p2p_add_wps_vendor_extension - Add a WPS vendor extension * @p2p: P2P module context from p2p_init() * @vendor_ext: The vendor extensions to add * Returns: 0 on success, -1 on failure * * The wpabuf structures in the array are owned by the P2P * module after this call. */ int p2p_add_wps_vendor_extension(struct p2p_data *p2p, const struct wpabuf *vendor_ext); /** * p2p_set_oper_channel - Set the P2P operating channel * @p2p: P2P module context from p2p_init() * @op_reg_class: Operating regulatory class to set * @op_channel: operating channel to set * @cfg_op_channel : Whether op_channel is hardcoded in configuration * Returns: 0 on success, -1 on failure */ int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel, int cfg_op_channel); /** * p2p_set_pref_chan - Set P2P preferred channel list * @p2p: P2P module context from p2p_init() * @num_pref_chan: Number of entries in pref_chan list * @pref_chan: Preferred channels or %NULL to remove preferences * Returns: 0 on success, -1 on failure */ int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan, const struct p2p_channel *pref_chan); /** * p2p_set_no_go_freq - Set no GO channel ranges * @p2p: P2P module context from p2p_init() * @list: Channel ranges or %NULL to remove restriction * Returns: 0 on success, -1 on failure */ int p2p_set_no_go_freq(struct p2p_data *p2p, const struct wpa_freq_range_list *list); /** * p2p_in_progress - Check whether a P2P operation is progress * @p2p: P2P module context from p2p_init() * Returns: 0 if P2P module is idle, 1 if an operation is in progress but not * in search state, or 2 if search state operation is in progress */ int p2p_in_progress(struct p2p_data *p2p); const char * p2p_wps_method_text(enum p2p_wps_method method); /** * p2p_set_config_timeout - Set local config timeouts * @p2p: P2P module context from p2p_init() * @go_timeout: Time in 10 ms units it takes to start the GO mode * @client_timeout: Time in 10 ms units it takes to start the client mode */ void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout, u8 client_timeout); int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie); int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie); int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie); int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie); int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie); int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie); int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie); int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie); int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem); int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem); int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p, const struct wpabuf *elem); struct wpabuf * wifi_display_encaps(struct wpabuf *subelems); /** * p2p_set_disc_int - Set min/max discoverable interval for p2p_find * @p2p: P2P module context from p2p_init() * @min_disc_int: minDiscoverableInterval (in units of 100 TU); default 1 * @max_disc_int: maxDiscoverableInterval (in units of 100 TU); default 3 * @max_disc_tu: Maximum number of TUs (1.024 ms) for discoverable interval; or * -1 not to limit * Returns: 0 on success, or -1 on failure * * This function can be used to configure minDiscoverableInterval and * maxDiscoverableInterval parameters for the Listen state during device * discovery (p2p_find). A random number of 100 TU units is picked for each * Listen state iteration from [min_disc_int,max_disc_int] range. * * max_disc_tu can be used to futher limit the discoverable duration. However, * it should be noted that use of this parameter is not recommended since it * would not be compliant with the P2P specification. */ int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int, int max_disc_tu); /** * p2p_get_state_txt - Get current P2P state for debug purposes * @p2p: P2P module context from p2p_init() * Returns: Name of the current P2P module state * * It should be noted that the P2P module state names are internal information * and subject to change at any point, i.e., this information should be used * mainly for debugging purposes. */ const char * p2p_get_state_txt(struct p2p_data *p2p); struct wpabuf * p2p_build_nfc_handover_req(struct p2p_data *p2p, int client_freq, const u8 *go_dev_addr, const u8 *ssid, size_t ssid_len); struct wpabuf * p2p_build_nfc_handover_sel(struct p2p_data *p2p, int client_freq, const u8 *go_dev_addr, const u8 *ssid, size_t ssid_len); struct p2p_nfc_params { int sel; const u8 *wsc_attr; size_t wsc_len; const u8 *p2p_attr; size_t p2p_len; enum { NO_ACTION, JOIN_GROUP, AUTH_JOIN, INIT_GO_NEG, RESP_GO_NEG, BOTH_GO, PEER_CLIENT } next_step; struct p2p_peer_info *peer; u8 oob_dev_pw[WPS_OOB_PUBKEY_HASH_LEN + 2 + WPS_OOB_DEVICE_PASSWORD_LEN]; size_t oob_dev_pw_len; int go_freq; u8 go_dev_addr[ETH_ALEN]; u8 go_ssid[SSID_MAX_LEN]; size_t go_ssid_len; }; int p2p_process_nfc_connection_handover(struct p2p_data *p2p, struct p2p_nfc_params *params); void p2p_set_authorized_oob_dev_pw_id(struct p2p_data *p2p, u16 dev_pw_id, int go_intent, const u8 *own_interface_addr); int p2p_set_passphrase_len(struct p2p_data *p2p, unsigned int len); void p2p_loop_on_known_peers(struct p2p_data *p2p, void (*peer_callback)(struct p2p_peer_info *peer, void *user_data), void *user_data); void p2p_set_vendor_elems(struct p2p_data *p2p, struct wpabuf **vendor_elem); void p2p_set_intended_addr(struct p2p_data *p2p, const u8 *intended_addr); struct p2ps_advertisement * p2p_service_p2ps_id(struct p2p_data *p2p, u32 adv_id); int p2p_service_add_asp(struct p2p_data *p2p, int auto_accept, u32 adv_id, const char *adv_str, u8 svc_state, u16 config_methods, const char *svc_info, const u8 *cpt_priority); int p2p_service_del_asp(struct p2p_data *p2p, u32 adv_id); void p2p_service_flush_asp(struct p2p_data *p2p); struct p2ps_advertisement * p2p_get_p2ps_adv_list(struct p2p_data *p2p); /** * p2p_expire_peers - Periodic cleanup function to expire peers * @p2p: P2P module context from p2p_init() * * This is a cleanup function that the entity calling p2p_init() is * expected to call periodically to clean up expired peer entries. */ void p2p_expire_peers(struct p2p_data *p2p); #endif /* P2P_H */