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/*
* Copyright (c) 2017, The OpenThread Authors.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#define OTBR_LOG_TAG "LOG"
#include "common/logging.hpp"
#include <assert.h>
#include <errno.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include <syslog.h>
#include <sstream>
#include "common/code_utils.hpp"
#include "common/time.hpp"
static otbrLogLevel sLevel = OTBR_LOG_INFO;
static const char sLevelString[][8] = {
"[EMERG]", "[ALERT]", "[CRIT]", "[ERR ]", "[WARN]", "[NOTE]", "[INFO]", "[DEBG]",
};
/** Get the current debug log level */
otbrLogLevel otbrLogGetLevel(void)
{
return sLevel;
}
/** Initialize logging */
void otbrLogInit(const char *aIdent, otbrLogLevel aLevel, bool aPrintStderr)
{
assert(aIdent);
assert(aLevel >= OTBR_LOG_EMERG && aLevel <= OTBR_LOG_DEBUG);
openlog(aIdent, (LOG_CONS | LOG_PID) | (aPrintStderr ? LOG_PERROR : 0), LOG_USER);
sLevel = aLevel;
}
static const char *GetPrefix(const char *aLogTag)
{
// Log prefix format : -xxx-----
const uint8_t kMaxTagSize = 7;
const uint8_t kBufferSize = kMaxTagSize + 3;
static char prefix[kBufferSize];
uint8_t tagLength = strlen(aLogTag) > kMaxTagSize ? kMaxTagSize : strlen(aLogTag);
int index = 0;
if (strlen(aLogTag) > 0)
{
prefix[0] = '-';
memcpy(&prefix[1], aLogTag, tagLength);
index = tagLength + 1;
memset(&prefix[index], '-', kMaxTagSize - tagLength + 1);
index += kMaxTagSize - tagLength + 1;
}
prefix[index++] = '\0';
return prefix;
}
/** log to the syslog or log file */
void otbrLog(otbrLogLevel aLevel, const char *aLogTag, const char *aFormat, ...)
{
const uint16_t kBufferSize = 1024;
va_list ap;
char buffer[kBufferSize];
va_start(ap, aFormat);
if ((aLevel <= sLevel) && (vsnprintf(buffer, sizeof(buffer), aFormat, ap) > 0))
{
syslog(static_cast<int>(aLevel), "%s%s: %s", sLevelString[aLevel], GetPrefix(aLogTag), buffer);
}
va_end(ap);
return;
}
/** log to the syslog or log file */
void otbrLogv(otbrLogLevel aLevel, const char *aFormat, va_list aArgList)
{
assert(aFormat);
if (aLevel <= sLevel)
{
otbrLogvNoFilter(aLevel, aFormat, aArgList);
}
}
void otbrLogvNoFilter(otbrLogLevel aLevel, const char *aFormat, va_list aArgList)
{
vsyslog(static_cast<int>(aLevel), aFormat, aArgList);
}
/** Hex dump data to the log */
void otbrDump(otbrLogLevel aLevel, const char *aPrefix, const void *aMemory, size_t aSize)
{
static const char kHexChars[] = "0123456789abcdef";
assert(aPrefix && (aMemory || aSize == 0));
const uint8_t *pEnd;
const uint8_t *p8;
int addr;
if (aLevel >= sLevel)
{
return;
}
/* break hex dumps into 16byte lines
* In the form ADDR: XX XX XX XX ...
*/
// we pre-increment... so subtract
addr = -16;
while (aSize > 0)
{
size_t this_size;
char hex[16 * 3 + 1];
addr = addr + 16;
p8 = (const uint8_t *)(aMemory) + addr;
/* truncate line to max 16 bytes */
this_size = aSize;
if (this_size > 16)
{
this_size = 16;
}
aSize = aSize - this_size;
char *ch = hex - 1;
for (pEnd = p8 + this_size; p8 < pEnd; p8++)
{
*++ch = kHexChars[(*p8) >> 4];
*++ch = kHexChars[(*p8) & 0x0f];
*++ch = ' ';
}
*ch = 0;
syslog(static_cast<int>(aLevel), "%s: %04x: %s", aPrefix, addr, hex);
}
}
const char *otbrErrorString(otbrError aError)
{
const char *error;
switch (aError)
{
case OTBR_ERROR_NONE:
error = "OK";
break;
case OTBR_ERROR_ERRNO:
error = strerror(errno);
break;
case OTBR_ERROR_DBUS:
error = "DBUS error";
break;
case OTBR_ERROR_MDNS:
error = "MDNS error";
break;
case OTBR_ERROR_OPENTHREAD:
error = "OpenThread error";
break;
case OTBR_ERROR_NOT_FOUND:
error = "Not found";
break;
case OTBR_ERROR_PARSE:
error = "Parse error";
break;
case OTBR_ERROR_NOT_IMPLEMENTED:
error = "Not implemented";
break;
case OTBR_ERROR_INVALID_ARGS:
error = "Invalid arguments";
break;
default:
error = "Unknown";
}
return error;
}
void otbrLogDeinit(void)
{
closelog();
}
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