20bd9547a1
These are used to notify ctrl_iface monitors when a STA completes connection (the port becomes authorized) and when a STA disconnects.
215 lines
8.4 KiB
C
215 lines
8.4 KiB
C
/*
|
|
* wpa_supplicant/hostapd control interface library
|
|
* Copyright (c) 2004-2006, Jouni Malinen <j@w1.fi>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* Alternatively, this software may be distributed under the terms of BSD
|
|
* license.
|
|
*
|
|
* See README and COPYING for more details.
|
|
*/
|
|
|
|
#ifndef WPA_CTRL_H
|
|
#define WPA_CTRL_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* wpa_supplicant control interface - fixed message prefixes */
|
|
|
|
/** Interactive request for identity/password/pin */
|
|
#define WPA_CTRL_REQ "CTRL-REQ-"
|
|
|
|
/** Response to identity/password/pin request */
|
|
#define WPA_CTRL_RSP "CTRL-RSP-"
|
|
|
|
/* Event messages with fixed prefix */
|
|
/** Authentication completed successfully and data connection enabled */
|
|
#define WPA_EVENT_CONNECTED "CTRL-EVENT-CONNECTED "
|
|
/** Disconnected, data connection is not available */
|
|
#define WPA_EVENT_DISCONNECTED "CTRL-EVENT-DISCONNECTED "
|
|
/** wpa_supplicant is exiting */
|
|
#define WPA_EVENT_TERMINATING "CTRL-EVENT-TERMINATING "
|
|
/** Password change was completed successfully */
|
|
#define WPA_EVENT_PASSWORD_CHANGED "CTRL-EVENT-PASSWORD-CHANGED "
|
|
/** EAP-Request/Notification received */
|
|
#define WPA_EVENT_EAP_NOTIFICATION "CTRL-EVENT-EAP-NOTIFICATION "
|
|
/** EAP authentication started (EAP-Request/Identity received) */
|
|
#define WPA_EVENT_EAP_STARTED "CTRL-EVENT-EAP-STARTED "
|
|
/** EAP method selected */
|
|
#define WPA_EVENT_EAP_METHOD "CTRL-EVENT-EAP-METHOD "
|
|
/** EAP authentication completed successfully */
|
|
#define WPA_EVENT_EAP_SUCCESS "CTRL-EVENT-EAP-SUCCESS "
|
|
/** EAP authentication failed (EAP-Failure received) */
|
|
#define WPA_EVENT_EAP_FAILURE "CTRL-EVENT-EAP-FAILURE "
|
|
/** New scan results available */
|
|
#define WPA_EVENT_SCAN_RESULTS "CTRL-EVENT-SCAN-RESULTS "
|
|
|
|
/** WPS overlap detected in PBC mode */
|
|
#define WPS_EVENT_OVERLAP "WPS-OVERLAP-DETECTED "
|
|
/** Available WPS AP with active PBC found in scan results */
|
|
#define WPS_EVENT_AP_AVAILABLE_PBC "WPS-AP-AVAILABLE-PBC "
|
|
/** Available WPS AP with recently selected PIN registrar found in scan results
|
|
*/
|
|
#define WPS_EVENT_AP_AVAILABLE_PIN "WPS-AP-AVAILABLE-PIN "
|
|
/** Available WPS AP found in scan results */
|
|
#define WPS_EVENT_AP_AVAILABLE "WPS-AP-AVAILABLE "
|
|
/** A new credential received */
|
|
#define WPS_EVENT_CRED_RECEIVED "WPS-CRED-RECEIVED "
|
|
/** M2D received */
|
|
#define WPS_EVENT_M2D "WPS-M2D "
|
|
/** WPS registration failed after M2/M2D */
|
|
#define WPS_EVENT_FAIL "WPS-FAIL "
|
|
/** WPS registration completed successfully */
|
|
#define WPS_EVENT_SUCCESS "WPS-SUCCESS "
|
|
/** WPS enrollment attempt timed out and was terminated */
|
|
#define WPS_EVENT_TIMEOUT "WPS-TIMEOUT "
|
|
|
|
/* hostapd control interface - fixed message prefixes */
|
|
#define WPS_EVENT_PIN_NEEDED "WPS-PIN-NEEDED "
|
|
#define WPS_EVENT_NEW_AP_SETTINGS "WPS-NEW-AP-SETTINGS "
|
|
#define WPS_EVENT_REG_SUCCESS "WPS-REG-SUCCESS "
|
|
#define WPS_EVENT_AP_SETUP_LOCKED "WPS-AP-SETUP-LOCKED "
|
|
#define AP_STA_CONNECTED "AP-STA-CONNECTED "
|
|
#define AP_STA_DISCONNECTED "AP-STA-DISCONNECTED "
|
|
|
|
|
|
/* wpa_supplicant/hostapd control interface access */
|
|
|
|
/**
|
|
* wpa_ctrl_open - Open a control interface to wpa_supplicant/hostapd
|
|
* @ctrl_path: Path for UNIX domain sockets; ignored if UDP sockets are used.
|
|
* Returns: Pointer to abstract control interface data or %NULL on failure
|
|
*
|
|
* This function is used to open a control interface to wpa_supplicant/hostapd.
|
|
* ctrl_path is usually /var/run/wpa_supplicant or /var/run/hostapd. This path
|
|
* is configured in wpa_supplicant/hostapd and other programs using the control
|
|
* interface need to use matching path configuration.
|
|
*/
|
|
struct wpa_ctrl * wpa_ctrl_open(const char *ctrl_path);
|
|
|
|
|
|
/**
|
|
* wpa_ctrl_close - Close a control interface to wpa_supplicant/hostapd
|
|
* @ctrl: Control interface data from wpa_ctrl_open()
|
|
*
|
|
* This function is used to close a control interface.
|
|
*/
|
|
void wpa_ctrl_close(struct wpa_ctrl *ctrl);
|
|
|
|
|
|
/**
|
|
* wpa_ctrl_request - Send a command to wpa_supplicant/hostapd
|
|
* @ctrl: Control interface data from wpa_ctrl_open()
|
|
* @cmd: Command; usually, ASCII text, e.g., "PING"
|
|
* @cmd_len: Length of the cmd in bytes
|
|
* @reply: Buffer for the response
|
|
* @reply_len: Reply buffer length
|
|
* @msg_cb: Callback function for unsolicited messages or %NULL if not used
|
|
* Returns: 0 on success, -1 on error (send or receive failed), -2 on timeout
|
|
*
|
|
* This function is used to send commands to wpa_supplicant/hostapd. Received
|
|
* response will be written to reply and reply_len is set to the actual length
|
|
* of the reply. This function will block for up to two seconds while waiting
|
|
* for the reply. If unsolicited messages are received, the blocking time may
|
|
* be longer.
|
|
*
|
|
* msg_cb can be used to register a callback function that will be called for
|
|
* unsolicited messages received while waiting for the command response. These
|
|
* messages may be received if wpa_ctrl_request() is called at the same time as
|
|
* wpa_supplicant/hostapd is sending such a message. This can happen only if
|
|
* the program has used wpa_ctrl_attach() to register itself as a monitor for
|
|
* event messages. Alternatively to msg_cb, programs can register two control
|
|
* interface connections and use one of them for commands and the other one for
|
|
* receiving event messages, in other words, call wpa_ctrl_attach() only for
|
|
* the control interface connection that will be used for event messages.
|
|
*/
|
|
int wpa_ctrl_request(struct wpa_ctrl *ctrl, const char *cmd, size_t cmd_len,
|
|
char *reply, size_t *reply_len,
|
|
void (*msg_cb)(char *msg, size_t len));
|
|
|
|
|
|
/**
|
|
* wpa_ctrl_attach - Register as an event monitor for the control interface
|
|
* @ctrl: Control interface data from wpa_ctrl_open()
|
|
* Returns: 0 on success, -1 on failure, -2 on timeout
|
|
*
|
|
* This function registers the control interface connection as a monitor for
|
|
* wpa_supplicant/hostapd events. After a success wpa_ctrl_attach() call, the
|
|
* control interface connection starts receiving event messages that can be
|
|
* read with wpa_ctrl_recv().
|
|
*/
|
|
int wpa_ctrl_attach(struct wpa_ctrl *ctrl);
|
|
|
|
|
|
/**
|
|
* wpa_ctrl_detach - Unregister event monitor from the control interface
|
|
* @ctrl: Control interface data from wpa_ctrl_open()
|
|
* Returns: 0 on success, -1 on failure, -2 on timeout
|
|
*
|
|
* This function unregisters the control interface connection as a monitor for
|
|
* wpa_supplicant/hostapd events, i.e., cancels the registration done with
|
|
* wpa_ctrl_attach().
|
|
*/
|
|
int wpa_ctrl_detach(struct wpa_ctrl *ctrl);
|
|
|
|
|
|
/**
|
|
* wpa_ctrl_recv - Receive a pending control interface message
|
|
* @ctrl: Control interface data from wpa_ctrl_open()
|
|
* @reply: Buffer for the message data
|
|
* @reply_len: Length of the reply buffer
|
|
* Returns: 0 on success, -1 on failure
|
|
*
|
|
* This function will receive a pending control interface message. This
|
|
* function will block if no messages are available. The received response will
|
|
* be written to reply and reply_len is set to the actual length of the reply.
|
|
* wpa_ctrl_recv() is only used for event messages, i.e., wpa_ctrl_attach()
|
|
* must have been used to register the control interface as an event monitor.
|
|
*/
|
|
int wpa_ctrl_recv(struct wpa_ctrl *ctrl, char *reply, size_t *reply_len);
|
|
|
|
|
|
/**
|
|
* wpa_ctrl_pending - Check whether there are pending event messages
|
|
* @ctrl: Control interface data from wpa_ctrl_open()
|
|
* Returns: 1 if there are pending messages, 0 if no, or -1 on error
|
|
*
|
|
* This function will check whether there are any pending control interface
|
|
* message available to be received with wpa_ctrl_recv(). wpa_ctrl_pending() is
|
|
* only used for event messages, i.e., wpa_ctrl_attach() must have been used to
|
|
* register the control interface as an event monitor.
|
|
*/
|
|
int wpa_ctrl_pending(struct wpa_ctrl *ctrl);
|
|
|
|
|
|
/**
|
|
* wpa_ctrl_get_fd - Get file descriptor used by the control interface
|
|
* @ctrl: Control interface data from wpa_ctrl_open()
|
|
* Returns: File descriptor used for the connection
|
|
*
|
|
* This function can be used to get the file descriptor that is used for the
|
|
* control interface connection. The returned value can be used, e.g., with
|
|
* select() while waiting for multiple events.
|
|
*
|
|
* The returned file descriptor must not be used directly for sending or
|
|
* receiving packets; instead, the library functions wpa_ctrl_request() and
|
|
* wpa_ctrl_recv() must be used for this.
|
|
*/
|
|
int wpa_ctrl_get_fd(struct wpa_ctrl *ctrl);
|
|
|
|
#ifdef CONFIG_CTRL_IFACE_UDP
|
|
#define WPA_CTRL_IFACE_PORT 9877
|
|
#define WPA_GLOBAL_CTRL_IFACE_PORT 9878
|
|
#endif /* CONFIG_CTRL_IFACE_UDP */
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* WPA_CTRL_H */
|