hostapd/src/utils/wpa_debug.h

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/*
* wpa_supplicant/hostapd / Debug prints
* Copyright (c) 2002-2013, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#ifndef WPA_DEBUG_H
#define WPA_DEBUG_H
#include "wpabuf.h"
extern int wpa_debug_level;
extern int wpa_debug_show_keys;
extern int wpa_debug_timestamp;
/* Debugging function - conditional printf and hex dump. Driver wrappers can
* use these for debugging purposes. */
enum {
MSG_EXCESSIVE, MSG_MSGDUMP, MSG_DEBUG, MSG_INFO, MSG_WARNING, MSG_ERROR
};
#ifdef CONFIG_NO_STDOUT_DEBUG
#define wpa_debug_print_timestamp() do { } while (0)
#define wpa_printf(args...) do { } while (0)
#define wpa_hexdump(l,t,b,le) do { } while (0)
#define wpa_hexdump_buf(l,t,b) do { } while (0)
#define wpa_hexdump_key(l,t,b,le) do { } while (0)
#define wpa_hexdump_buf_key(l,t,b) do { } while (0)
#define wpa_hexdump_ascii(l,t,b,le) do { } while (0)
#define wpa_hexdump_ascii_key(l,t,b,le) do { } while (0)
#define wpa_debug_open_file(p) do { } while (0)
#define wpa_debug_close_file() do { } while (0)
#define wpa_debug_setup_stdout() do { } while (0)
#define wpa_dbg(args...) do { } while (0)
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static inline int wpa_debug_reopen_file(void)
{
return 0;
}
#else /* CONFIG_NO_STDOUT_DEBUG */
int wpa_debug_open_file(const char *path);
int wpa_debug_reopen_file(void);
void wpa_debug_close_file(void);
void wpa_debug_setup_stdout(void);
/**
* wpa_debug_printf_timestamp - Print timestamp for debug output
*
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* This function prints a timestamp in seconds_from_1970.microsoconds
* format if debug output has been configured to include timestamps in debug
* messages.
*/
void wpa_debug_print_timestamp(void);
/**
* wpa_printf - conditional printf
* @level: priority level (MSG_*) of the message
* @fmt: printf format string, followed by optional arguments
*
* This function is used to print conditional debugging and error messages. The
* output may be directed to stdout, stderr, and/or syslog based on
* configuration.
*
* Note: New line '\n' is added to the end of the text when printing to stdout.
*/
void wpa_printf(int level, const char *fmt, ...)
PRINTF_FORMAT(2, 3);
/**
* wpa_hexdump - conditional hex dump
* @level: priority level (MSG_*) of the message
* @title: title of for the message
* @buf: data buffer to be dumped
* @len: length of the buf
*
* This function is used to print conditional debugging and error messages. The
* output may be directed to stdout, stderr, and/or syslog based on
* configuration. The contents of buf is printed out has hex dump.
*/
void wpa_hexdump(int level, const char *title, const void *buf, size_t len);
static inline void wpa_hexdump_buf(int level, const char *title,
const struct wpabuf *buf)
{
wpa_hexdump(level, title, buf ? wpabuf_head(buf) : NULL,
buf ? wpabuf_len(buf) : 0);
}
/**
* wpa_hexdump_key - conditional hex dump, hide keys
* @level: priority level (MSG_*) of the message
* @title: title of for the message
* @buf: data buffer to be dumped
* @len: length of the buf
*
* This function is used to print conditional debugging and error messages. The
* output may be directed to stdout, stderr, and/or syslog based on
* configuration. The contents of buf is printed out has hex dump. This works
* like wpa_hexdump(), but by default, does not include secret keys (passwords,
* etc.) in debug output.
*/
void wpa_hexdump_key(int level, const char *title, const void *buf, size_t len);
static inline void wpa_hexdump_buf_key(int level, const char *title,
const struct wpabuf *buf)
{
wpa_hexdump_key(level, title, buf ? wpabuf_head(buf) : NULL,
buf ? wpabuf_len(buf) : 0);
}
/**
* wpa_hexdump_ascii - conditional hex dump
* @level: priority level (MSG_*) of the message
* @title: title of for the message
* @buf: data buffer to be dumped
* @len: length of the buf
*
* This function is used to print conditional debugging and error messages. The
* output may be directed to stdout, stderr, and/or syslog based on
* configuration. The contents of buf is printed out has hex dump with both
* the hex numbers and ASCII characters (for printable range) are shown. 16
* bytes per line will be shown.
*/
void wpa_hexdump_ascii(int level, const char *title, const void *buf,
size_t len);
/**
* wpa_hexdump_ascii_key - conditional hex dump, hide keys
* @level: priority level (MSG_*) of the message
* @title: title of for the message
* @buf: data buffer to be dumped
* @len: length of the buf
*
* This function is used to print conditional debugging and error messages. The
* output may be directed to stdout, stderr, and/or syslog based on
* configuration. The contents of buf is printed out has hex dump with both
* the hex numbers and ASCII characters (for printable range) are shown. 16
* bytes per line will be shown. This works like wpa_hexdump_ascii(), but by
* default, does not include secret keys (passwords, etc.) in debug output.
*/
void wpa_hexdump_ascii_key(int level, const char *title, const void *buf,
size_t len);
/*
* wpa_dbg() behaves like wpa_msg(), but it can be removed from build to reduce
* binary size. As such, it should be used with debugging messages that are not
* needed in the control interface while wpa_msg() has to be used for anything
* that needs to shown to control interface monitors.
*/
#define wpa_dbg(args...) wpa_msg(args)
#endif /* CONFIG_NO_STDOUT_DEBUG */
#ifdef CONFIG_NO_WPA_MSG
#define wpa_msg(args...) do { } while (0)
#define wpa_msg_ctrl(args...) do { } while (0)
#define wpa_msg_global(args...) do { } while (0)
#define wpa_msg_global_ctrl(args...) do { } while (0)
#define wpa_msg_no_global(args...) do { } while (0)
#define wpa_msg_register_cb(f) do { } while (0)
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#define wpa_msg_register_ifname_cb(f) do { } while (0)
#else /* CONFIG_NO_WPA_MSG */
/**
* wpa_msg - Conditional printf for default target and ctrl_iface monitors
* @ctx: Pointer to context data; this is the ctx variable registered
* with struct wpa_driver_ops::init()
* @level: priority level (MSG_*) of the message
* @fmt: printf format string, followed by optional arguments
*
* This function is used to print conditional debugging and error messages. The
* output may be directed to stdout, stderr, and/or syslog based on
* configuration. This function is like wpa_printf(), but it also sends the
* same message to all attached ctrl_iface monitors.
*
* Note: New line '\n' is added to the end of the text when printing to stdout.
*/
void wpa_msg(void *ctx, int level, const char *fmt, ...) PRINTF_FORMAT(3, 4);
/**
* wpa_msg_ctrl - Conditional printf for ctrl_iface monitors
* @ctx: Pointer to context data; this is the ctx variable registered
* with struct wpa_driver_ops::init()
* @level: priority level (MSG_*) of the message
* @fmt: printf format string, followed by optional arguments
*
* This function is used to print conditional debugging and error messages.
* This function is like wpa_msg(), but it sends the output only to the
* attached ctrl_iface monitors. In other words, it can be used for frequent
* events that do not need to be sent to syslog.
*/
void wpa_msg_ctrl(void *ctx, int level, const char *fmt, ...)
PRINTF_FORMAT(3, 4);
/**
* wpa_msg_global - Global printf for ctrl_iface monitors
* @ctx: Pointer to context data; this is the ctx variable registered
* with struct wpa_driver_ops::init()
* @level: priority level (MSG_*) of the message
* @fmt: printf format string, followed by optional arguments
*
* This function is used to print conditional debugging and error messages.
* This function is like wpa_msg(), but it sends the output as a global event,
* i.e., without being specific to an interface. For backwards compatibility,
* an old style event is also delivered on one of the interfaces (the one
* specified by the context data).
*/
void wpa_msg_global(void *ctx, int level, const char *fmt, ...)
PRINTF_FORMAT(3, 4);
/**
* wpa_msg_global_ctrl - Conditional global printf for ctrl_iface monitors
* @ctx: Pointer to context data; this is the ctx variable registered
* with struct wpa_driver_ops::init()
* @level: priority level (MSG_*) of the message
* @fmt: printf format string, followed by optional arguments
*
* This function is used to print conditional debugging and error messages.
* This function is like wpa_msg_global(), but it sends the output only to the
* attached global ctrl_iface monitors. In other words, it can be used for
* frequent events that do not need to be sent to syslog.
*/
void wpa_msg_global_ctrl(void *ctx, int level, const char *fmt, ...)
PRINTF_FORMAT(3, 4);
/**
* wpa_msg_no_global - Conditional printf for ctrl_iface monitors
* @ctx: Pointer to context data; this is the ctx variable registered
* with struct wpa_driver_ops::init()
* @level: priority level (MSG_*) of the message
* @fmt: printf format string, followed by optional arguments
*
* This function is used to print conditional debugging and error messages.
* This function is like wpa_msg(), but it does not send the output as a global
* event.
*/
void wpa_msg_no_global(void *ctx, int level, const char *fmt, ...)
PRINTF_FORMAT(3, 4);
typedef void (*wpa_msg_cb_func)(void *ctx, int level, int global,
const char *txt, size_t len);
/**
* wpa_msg_register_cb - Register callback function for wpa_msg() messages
* @func: Callback function (%NULL to unregister)
*/
void wpa_msg_register_cb(wpa_msg_cb_func func);
typedef const char * (*wpa_msg_get_ifname_func)(void *ctx);
void wpa_msg_register_ifname_cb(wpa_msg_get_ifname_func func);
#endif /* CONFIG_NO_WPA_MSG */
#ifdef CONFIG_NO_HOSTAPD_LOGGER
#define hostapd_logger(args...) do { } while (0)
#define hostapd_logger_register_cb(f) do { } while (0)
#else /* CONFIG_NO_HOSTAPD_LOGGER */
void hostapd_logger(void *ctx, const u8 *addr, unsigned int module, int level,
const char *fmt, ...) PRINTF_FORMAT(5, 6);
typedef void (*hostapd_logger_cb_func)(void *ctx, const u8 *addr,
unsigned int module, int level,
const char *txt, size_t len);
/**
* hostapd_logger_register_cb - Register callback function for hostapd_logger()
* @func: Callback function (%NULL to unregister)
*/
void hostapd_logger_register_cb(hostapd_logger_cb_func func);
#endif /* CONFIG_NO_HOSTAPD_LOGGER */
#define HOSTAPD_MODULE_IEEE80211 0x00000001
#define HOSTAPD_MODULE_IEEE8021X 0x00000002
#define HOSTAPD_MODULE_RADIUS 0x00000004
#define HOSTAPD_MODULE_WPA 0x00000008
#define HOSTAPD_MODULE_DRIVER 0x00000010
#define HOSTAPD_MODULE_IAPP 0x00000020
#define HOSTAPD_MODULE_MLME 0x00000040
enum hostapd_logger_level {
HOSTAPD_LEVEL_DEBUG_VERBOSE = 0,
HOSTAPD_LEVEL_DEBUG = 1,
HOSTAPD_LEVEL_INFO = 2,
HOSTAPD_LEVEL_NOTICE = 3,
HOSTAPD_LEVEL_WARNING = 4
};
#ifdef CONFIG_DEBUG_SYSLOG
void wpa_debug_open_syslog(void);
void wpa_debug_close_syslog(void);
#else /* CONFIG_DEBUG_SYSLOG */
static inline void wpa_debug_open_syslog(void)
{
}
static inline void wpa_debug_close_syslog(void)
{
}
#endif /* CONFIG_DEBUG_SYSLOG */
#ifdef CONFIG_DEBUG_LINUX_TRACING
int wpa_debug_open_linux_tracing(void);
void wpa_debug_close_linux_tracing(void);
#else /* CONFIG_DEBUG_LINUX_TRACING */
static inline int wpa_debug_open_linux_tracing(void)
{
return 0;
}
static inline void wpa_debug_close_linux_tracing(void)
{
}
#endif /* CONFIG_DEBUG_LINUX_TRACING */
#ifdef EAPOL_TEST
#define WPA_ASSERT(a) \
do { \
if (!(a)) { \
printf("WPA_ASSERT FAILED '" #a "' " \
"%s %s:%d\n", \
__FUNCTION__, __FILE__, __LINE__); \
exit(1); \
} \
} while (0)
#else
#define WPA_ASSERT(a) do { } while (0)
#endif
#endif /* WPA_DEBUG_H */