mirror of
https://github.com/vanhoefm/fragattacks.git
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de27bc7673
If hostapd will use stdout for debugging, set stdout to be line buffered in case its output is redirected to a file. This allows incremental output to be viewed immediately instead of at the file buffering interval. Signed-hostap: Paul Stewart <pstew@chromium.org>
346 lines
12 KiB
C
346 lines
12 KiB
C
/*
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* wpa_supplicant/hostapd / Debug prints
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* Copyright (c) 2002-2013, Jouni Malinen <j@w1.fi>
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#ifndef WPA_DEBUG_H
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#define WPA_DEBUG_H
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#include "wpabuf.h"
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extern int wpa_debug_level;
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extern int wpa_debug_show_keys;
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extern int wpa_debug_timestamp;
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/* Debugging function - conditional printf and hex dump. Driver wrappers can
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* use these for debugging purposes. */
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enum {
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MSG_EXCESSIVE, MSG_MSGDUMP, MSG_DEBUG, MSG_INFO, MSG_WARNING, MSG_ERROR
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};
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#ifdef CONFIG_NO_STDOUT_DEBUG
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#define wpa_debug_print_timestamp() do { } while (0)
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#define wpa_printf(args...) do { } while (0)
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#define wpa_hexdump(l,t,b,le) do { } while (0)
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#define wpa_hexdump_buf(l,t,b) do { } while (0)
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#define wpa_hexdump_key(l,t,b,le) do { } while (0)
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#define wpa_hexdump_buf_key(l,t,b) do { } while (0)
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#define wpa_hexdump_ascii(l,t,b,le) do { } while (0)
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#define wpa_hexdump_ascii_key(l,t,b,le) do { } while (0)
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#define wpa_debug_open_file(p) do { } while (0)
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#define wpa_debug_close_file() do { } while (0)
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#define wpa_debug_setup_stdout() do { } while (0)
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#define wpa_dbg(args...) do { } while (0)
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static inline int wpa_debug_reopen_file(void)
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{
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return 0;
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}
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#else /* CONFIG_NO_STDOUT_DEBUG */
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int wpa_debug_open_file(const char *path);
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int wpa_debug_reopen_file(void);
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void wpa_debug_close_file(void);
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void wpa_debug_setup_stdout(void);
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/**
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* wpa_debug_printf_timestamp - Print timestamp for debug output
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*
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* This function prints a timestamp in seconds_from_1970.microsoconds
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* format if debug output has been configured to include timestamps in debug
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* messages.
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*/
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void wpa_debug_print_timestamp(void);
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/**
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* wpa_printf - conditional printf
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* @level: priority level (MSG_*) of the message
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* @fmt: printf format string, followed by optional arguments
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*
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* This function is used to print conditional debugging and error messages. The
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* output may be directed to stdout, stderr, and/or syslog based on
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* configuration.
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*
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* Note: New line '\n' is added to the end of the text when printing to stdout.
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*/
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void wpa_printf(int level, const char *fmt, ...)
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PRINTF_FORMAT(2, 3);
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/**
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* wpa_hexdump - conditional hex dump
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* @level: priority level (MSG_*) of the message
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* @title: title of for the message
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* @buf: data buffer to be dumped
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* @len: length of the buf
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*
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* This function is used to print conditional debugging and error messages. The
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* output may be directed to stdout, stderr, and/or syslog based on
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* configuration. The contents of buf is printed out has hex dump.
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*/
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void wpa_hexdump(int level, const char *title, const void *buf, size_t len);
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static inline void wpa_hexdump_buf(int level, const char *title,
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const struct wpabuf *buf)
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{
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wpa_hexdump(level, title, buf ? wpabuf_head(buf) : NULL,
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buf ? wpabuf_len(buf) : 0);
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}
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/**
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* wpa_hexdump_key - conditional hex dump, hide keys
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* @level: priority level (MSG_*) of the message
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* @title: title of for the message
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* @buf: data buffer to be dumped
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* @len: length of the buf
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*
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* This function is used to print conditional debugging and error messages. The
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* output may be directed to stdout, stderr, and/or syslog based on
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* configuration. The contents of buf is printed out has hex dump. This works
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* like wpa_hexdump(), but by default, does not include secret keys (passwords,
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* etc.) in debug output.
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*/
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void wpa_hexdump_key(int level, const char *title, const void *buf, size_t len);
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static inline void wpa_hexdump_buf_key(int level, const char *title,
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const struct wpabuf *buf)
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{
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wpa_hexdump_key(level, title, buf ? wpabuf_head(buf) : NULL,
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buf ? wpabuf_len(buf) : 0);
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}
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/**
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* wpa_hexdump_ascii - conditional hex dump
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* @level: priority level (MSG_*) of the message
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* @title: title of for the message
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* @buf: data buffer to be dumped
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* @len: length of the buf
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*
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* This function is used to print conditional debugging and error messages. The
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* output may be directed to stdout, stderr, and/or syslog based on
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* configuration. The contents of buf is printed out has hex dump with both
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* the hex numbers and ASCII characters (for printable range) are shown. 16
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* bytes per line will be shown.
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*/
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void wpa_hexdump_ascii(int level, const char *title, const void *buf,
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size_t len);
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/**
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* wpa_hexdump_ascii_key - conditional hex dump, hide keys
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* @level: priority level (MSG_*) of the message
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* @title: title of for the message
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* @buf: data buffer to be dumped
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* @len: length of the buf
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*
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* This function is used to print conditional debugging and error messages. The
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* output may be directed to stdout, stderr, and/or syslog based on
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* configuration. The contents of buf is printed out has hex dump with both
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* the hex numbers and ASCII characters (for printable range) are shown. 16
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* bytes per line will be shown. This works like wpa_hexdump_ascii(), but by
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* default, does not include secret keys (passwords, etc.) in debug output.
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*/
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void wpa_hexdump_ascii_key(int level, const char *title, const void *buf,
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size_t len);
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/*
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* wpa_dbg() behaves like wpa_msg(), but it can be removed from build to reduce
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* binary size. As such, it should be used with debugging messages that are not
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* needed in the control interface while wpa_msg() has to be used for anything
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* that needs to shown to control interface monitors.
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*/
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#define wpa_dbg(args...) wpa_msg(args)
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#endif /* CONFIG_NO_STDOUT_DEBUG */
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#ifdef CONFIG_NO_WPA_MSG
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#define wpa_msg(args...) do { } while (0)
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#define wpa_msg_ctrl(args...) do { } while (0)
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#define wpa_msg_global(args...) do { } while (0)
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#define wpa_msg_global_ctrl(args...) do { } while (0)
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#define wpa_msg_no_global(args...) do { } while (0)
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#define wpa_msg_register_cb(f) do { } while (0)
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#define wpa_msg_register_ifname_cb(f) do { } while (0)
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#else /* CONFIG_NO_WPA_MSG */
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/**
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* wpa_msg - Conditional printf for default target and ctrl_iface monitors
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* @ctx: Pointer to context data; this is the ctx variable registered
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* with struct wpa_driver_ops::init()
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* @level: priority level (MSG_*) of the message
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* @fmt: printf format string, followed by optional arguments
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*
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* This function is used to print conditional debugging and error messages. The
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* output may be directed to stdout, stderr, and/or syslog based on
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* configuration. This function is like wpa_printf(), but it also sends the
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* same message to all attached ctrl_iface monitors.
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*
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* Note: New line '\n' is added to the end of the text when printing to stdout.
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*/
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void wpa_msg(void *ctx, int level, const char *fmt, ...) PRINTF_FORMAT(3, 4);
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/**
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* wpa_msg_ctrl - Conditional printf for ctrl_iface monitors
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* @ctx: Pointer to context data; this is the ctx variable registered
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* with struct wpa_driver_ops::init()
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* @level: priority level (MSG_*) of the message
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* @fmt: printf format string, followed by optional arguments
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*
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* This function is used to print conditional debugging and error messages.
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* This function is like wpa_msg(), but it sends the output only to the
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* attached ctrl_iface monitors. In other words, it can be used for frequent
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* events that do not need to be sent to syslog.
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*/
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void wpa_msg_ctrl(void *ctx, int level, const char *fmt, ...)
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PRINTF_FORMAT(3, 4);
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/**
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* wpa_msg_global - Global printf for ctrl_iface monitors
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* @ctx: Pointer to context data; this is the ctx variable registered
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* with struct wpa_driver_ops::init()
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* @level: priority level (MSG_*) of the message
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* @fmt: printf format string, followed by optional arguments
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*
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* This function is used to print conditional debugging and error messages.
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* This function is like wpa_msg(), but it sends the output as a global event,
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* i.e., without being specific to an interface. For backwards compatibility,
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* an old style event is also delivered on one of the interfaces (the one
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* specified by the context data).
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*/
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void wpa_msg_global(void *ctx, int level, const char *fmt, ...)
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PRINTF_FORMAT(3, 4);
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/**
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* wpa_msg_global_ctrl - Conditional global printf for ctrl_iface monitors
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* @ctx: Pointer to context data; this is the ctx variable registered
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* with struct wpa_driver_ops::init()
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* @level: priority level (MSG_*) of the message
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* @fmt: printf format string, followed by optional arguments
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*
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* This function is used to print conditional debugging and error messages.
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* This function is like wpa_msg_global(), but it sends the output only to the
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* attached global ctrl_iface monitors. In other words, it can be used for
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* frequent events that do not need to be sent to syslog.
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*/
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void wpa_msg_global_ctrl(void *ctx, int level, const char *fmt, ...)
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PRINTF_FORMAT(3, 4);
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/**
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* wpa_msg_no_global - Conditional printf for ctrl_iface monitors
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* @ctx: Pointer to context data; this is the ctx variable registered
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* with struct wpa_driver_ops::init()
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* @level: priority level (MSG_*) of the message
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* @fmt: printf format string, followed by optional arguments
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*
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* This function is used to print conditional debugging and error messages.
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* This function is like wpa_msg(), but it does not send the output as a global
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* event.
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*/
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void wpa_msg_no_global(void *ctx, int level, const char *fmt, ...)
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PRINTF_FORMAT(3, 4);
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typedef void (*wpa_msg_cb_func)(void *ctx, int level, int global,
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const char *txt, size_t len);
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/**
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* wpa_msg_register_cb - Register callback function for wpa_msg() messages
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* @func: Callback function (%NULL to unregister)
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*/
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void wpa_msg_register_cb(wpa_msg_cb_func func);
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typedef const char * (*wpa_msg_get_ifname_func)(void *ctx);
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void wpa_msg_register_ifname_cb(wpa_msg_get_ifname_func func);
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#endif /* CONFIG_NO_WPA_MSG */
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#ifdef CONFIG_NO_HOSTAPD_LOGGER
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#define hostapd_logger(args...) do { } while (0)
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#define hostapd_logger_register_cb(f) do { } while (0)
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#else /* CONFIG_NO_HOSTAPD_LOGGER */
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void hostapd_logger(void *ctx, const u8 *addr, unsigned int module, int level,
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const char *fmt, ...) PRINTF_FORMAT(5, 6);
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typedef void (*hostapd_logger_cb_func)(void *ctx, const u8 *addr,
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unsigned int module, int level,
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const char *txt, size_t len);
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/**
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* hostapd_logger_register_cb - Register callback function for hostapd_logger()
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* @func: Callback function (%NULL to unregister)
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*/
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void hostapd_logger_register_cb(hostapd_logger_cb_func func);
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#endif /* CONFIG_NO_HOSTAPD_LOGGER */
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#define HOSTAPD_MODULE_IEEE80211 0x00000001
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#define HOSTAPD_MODULE_IEEE8021X 0x00000002
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#define HOSTAPD_MODULE_RADIUS 0x00000004
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#define HOSTAPD_MODULE_WPA 0x00000008
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#define HOSTAPD_MODULE_DRIVER 0x00000010
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#define HOSTAPD_MODULE_IAPP 0x00000020
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#define HOSTAPD_MODULE_MLME 0x00000040
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enum hostapd_logger_level {
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HOSTAPD_LEVEL_DEBUG_VERBOSE = 0,
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HOSTAPD_LEVEL_DEBUG = 1,
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HOSTAPD_LEVEL_INFO = 2,
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HOSTAPD_LEVEL_NOTICE = 3,
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HOSTAPD_LEVEL_WARNING = 4
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};
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#ifdef CONFIG_DEBUG_SYSLOG
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void wpa_debug_open_syslog(void);
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void wpa_debug_close_syslog(void);
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#else /* CONFIG_DEBUG_SYSLOG */
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static inline void wpa_debug_open_syslog(void)
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{
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}
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static inline void wpa_debug_close_syslog(void)
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{
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}
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#endif /* CONFIG_DEBUG_SYSLOG */
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#ifdef CONFIG_DEBUG_LINUX_TRACING
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int wpa_debug_open_linux_tracing(void);
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void wpa_debug_close_linux_tracing(void);
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#else /* CONFIG_DEBUG_LINUX_TRACING */
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static inline int wpa_debug_open_linux_tracing(void)
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{
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return 0;
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}
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static inline void wpa_debug_close_linux_tracing(void)
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{
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}
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#endif /* CONFIG_DEBUG_LINUX_TRACING */
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#ifdef EAPOL_TEST
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#define WPA_ASSERT(a) \
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do { \
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if (!(a)) { \
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printf("WPA_ASSERT FAILED '" #a "' " \
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"%s %s:%d\n", \
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__FUNCTION__, __FILE__, __LINE__); \
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exit(1); \
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} \
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} while (0)
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#else
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#define WPA_ASSERT(a) do { } while (0)
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#endif
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#endif /* WPA_DEBUG_H */
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