144 lines
4.4 KiB
C
144 lines
4.4 KiB
C
/* debug.h -- debug utilities
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*
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* Copyright (C) 2011--2012 Olaf Bergmann <bergmann@tzi.org>
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef _DTLS_DEBUG_H_
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#define _DTLS_DEBUG_H_
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#include <stdlib.h>
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#include "dtls_config.h"
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#include "global.h"
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#include "session.h"
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#ifdef WITH_CONTIKI
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# ifndef DEBUG
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# define DEBUG DEBUG_PRINT
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# endif /* DEBUG */
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#include "contiki/ip/uip-debug.h"
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#ifdef CONTIKI_TARGET_MBXXX
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extern char __Stack_Init, _estack;
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static inline void check_stack() {
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const char *p = &__Stack_Init;
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while (p < &_estack && *p == 0x38) {
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p++;
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}
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PRINTF("Stack: %d bytes used (%d free)\n", &_estack - p, p - &__Stack_Init);
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}
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#else /* CONTIKI_TARGET_MBXXX */
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static inline void check_stack() {
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}
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#endif /* CONTIKI_TARGET_MBXXX */
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#else /* WITH_CONTKI */
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#define PRINTF(...)
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static inline void check_stack() {
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}
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#endif
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struct __session_t;
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/** Pre-defined log levels akin to what is used in \b syslog. */
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typedef enum { DTLS_LOG_EMERG=0, DTLS_LOG_ALERT, DTLS_LOG_CRIT, DTLS_LOG_WARN,
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DTLS_LOG_NOTICE, DTLS_LOG_INFO, DTLS_LOG_DEBUG
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} log_t;
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/** Returns a zero-terminated string with the name of this library. */
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const char *dtls_package_name();
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/** Returns a zero-terminated string with the library version. */
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const char *dtls_package_version();
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#ifndef NDEBUG
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/** Returns the current log level. */
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log_t dtls_get_log_level();
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/** Sets the log level to the specified value. */
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void dtls_set_log_level(log_t level);
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/**
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* Writes the given text to \c stdout. The text is output only when \p
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* level is below or equal to the log level that set by
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* set_log_level(). */
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#ifdef HAVE_VPRINTF
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void dsrv_log(log_t level, char *format, ...);
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#else
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#define dsrv_log(level, format, ...) PRINTF(format, ##__VA_ARGS__)
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#endif
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/** dumps packets in usual hexdump format */
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void hexdump(const unsigned char *packet, int length);
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/** dump as narrow string of hex digits */
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void dump(unsigned char *buf, size_t len);
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void dtls_dsrv_hexdump_log(log_t level, const char *name, const unsigned char *buf, size_t length, int extend);
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void dtls_dsrv_log_addr(log_t level, const char *name, const session_t *addr);
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#else /* NDEBUG */
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static inline log_t dtls_get_log_level()
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{
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return DTLS_LOG_EMERG;
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}
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static inline void dtls_set_log_level(log_t level)
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{}
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static inline void dsrv_log(log_t level, char *format, ...)
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{}
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static inline void hexdump(const unsigned char *packet, int length)
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{}
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static inline void dump(unsigned char *buf, size_t len)
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{}
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static inline void
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dtls_dsrv_hexdump_log(log_t level, const char *name, const unsigned char *buf, size_t length, int extend)
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{}
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static inline void
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dtls_dsrv_log_addr(log_t level, const char *name, const session_t *addr)
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{}
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#endif /* NDEBUG */
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/* A set of convenience macros for common log levels. */
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#define dtls_emerg(...) dsrv_log(DTLS_LOG_EMERG, __VA_ARGS__)
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#define dtls_alert(...) dsrv_log(DTLS_LOG_ALERT, __VA_ARGS__)
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#define dtls_crit(...) dsrv_log(DTLS_LOG_CRIT, __VA_ARGS__)
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#define dtls_warn(...) dsrv_log(DTLS_LOG_WARN, __VA_ARGS__)
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#define dtls_notice(...) dsrv_log(DTLS_LOG_NOTICE, __VA_ARGS__)
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#define dtls_info(...) dsrv_log(DTLS_LOG_INFO, __VA_ARGS__)
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#define dtls_debug(...) dsrv_log(DTLS_LOG_DEBUG, __VA_ARGS__)
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#define dtls_debug_hexdump(name, buf, length) dtls_dsrv_hexdump_log(DTLS_LOG_DEBUG, name, buf, length, 1)
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#define dtls_debug_dump(name, buf, length) dtls_dsrv_hexdump_log(DTLS_LOG_DEBUG, name, buf, length, 0)
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#endif /* _DTLS_DEBUG_H_ */
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