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/******************************************************************************
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* file lib/management/common.c
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* author YuLiang
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* version 1.0.0
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* date 14-Sep-2021
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* brief This file provides all the common operation functions.
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*
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******************************************************************************
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* Attention
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*
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* <h2><center>© COPYRIGHT(c) 2021 LandPower</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of LandPower nor the names of its contributors may be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************/
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/* Includes ------------------------------------------------------------------*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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/* 标准C库头文件. */
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#include <sys/time.h>
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#include <ctype.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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/* 用户代码头文件. */
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#include "vty.h"
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/* Private define ------------------------------------------------------------*/
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/* CRC32 使用. */
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#define CRC32_CHAR_BIT 8
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/* Private macro -------------------------------------------------------------*/
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/* Private typedef -----------------------------------------------------------*/
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/* 时间缓存结构体. */
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typedef struct _time_cache
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{
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time_t last; /* 最后一次时间缓存数据. */
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size_t len; /* buf中数据的长度. */
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char buf[TIME_STR_LEN]; /* 时间数据转化的字符串. */
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} time_cache_t;
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/* Private variables ---------------------------------------------------------*/
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static struct timeval sd_start, sd_end;
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static uint32_t crc32Table[256];
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extern int8_t is_system_reboot;
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/* Private function prototypes -----------------------------------------------*/
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/* Internal functions --------------------------------------------------------*/
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/* 在时间后面根据precision长度,添加更加精确的时间字符串. */
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static size_t _time_string_prec_add(char *buf, size_t len, int32_t precision, struct timeval *clock)
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{
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static const int divisor[] = {0, 100000, 10000, 1000, 100, 10, 1};
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char *p = NULL;
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/* 最多统计到us */
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if (precision > 6)
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precision = 6;
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p = buf + len + 1 + precision;
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*p-- = '\0';
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clock->tv_usec /= divisor[precision];
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do
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{
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*p-- = '0' + (clock->tv_usec % 10);
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clock->tv_usec /= 10;
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}
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while(--precision > 0);
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*p = '.';
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return len + 1 + precision;
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}
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/* Interface functions -------------------------------------------------------*/
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/* description: 将字符串转为小写.
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param: str -- 需要转换的字符转
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return: 转换后的字符串 */
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char *str_to_lower(char *str)
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{
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uint32_t i = 0;
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if (str != NULL)
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{
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for(i = 0; str[i] != '\0'; i++)
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{
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str[i] = tolower(str[i]);
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}
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}
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return str;
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}
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/* description: 去掉字符串中的多余空格.
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param: str -- 需要转换操作的字符转
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omit_end -- omit_end(TRUE)表示会将字符串尾部的空格全部消除
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omit_end(FALSE)表示如果尾部有空格，允许保留1个空格
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return: 操作后的字符串 */
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char *str_omit_space(char *str, bool omit_end)
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{
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char *front = str;
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char *last = str;
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if (NULL == str)
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{
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return NULL;
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}
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while(' ' == *front)
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front++;
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while((*front) != '\0')
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{
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if (' ' == *front)
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{
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while((*++front) == ' ');
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if ('\0' == *front && omit_end)
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;
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else
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{
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*last = ' ';
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last++;
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}
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}
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else
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{
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*last = *front;
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front++;
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last++;
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}
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}
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*last = '\0';
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return str;
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}
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/* description: 根据传入的精度precision,将时间字符串填到buf.
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param: precision -- 精度,几位小数
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buf -- 存储转换后字符串的buffer
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buflen -- buf的大小
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return: 返回字符串长度,如果失败,返回0 */
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size_t time_string(int32_t precision, char *buf, size_t buflen)
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{
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static time_cache_t cache;
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struct timeval clock;
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/* 获取时间数据clock. */
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gettimeofday(&clock, NULL);
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/* 更新时间到字符串,cache是静态的,如果两次time_string调用在1秒之内,将沿用上次的cache. */
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if (cache.last != clock.tv_sec)
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{
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struct tm *tm = NULL;
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cache.last = clock.tv_sec;
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tm = localtime(&cache.last);
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cache.len = strftime(cache.buf, sizeof(cache.buf), "%Y/%m/%d %H:%M:%S", tm);
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}
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if (buflen > cache.len)
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{
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memcpy(buf, cache.buf, cache.len);
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/* 计算秒之后的精度. */
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if ((precision > 0) && (buflen > cache.len + 1 + precision))
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return _time_string_prec_add(buf, cache.len, precision, &clock);
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buf[cache.len] = '\0';
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return cache.len;
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}
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/* buf太小,无法生成字符串. */
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if (buflen > 0)
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buf[0] = '\0';
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return 0;
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}
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/* description: 获取错误代码字符串.
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param: errnum -- 错误代码
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return: 获取的字符串 */
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const char *safe_strerror(int errnum)
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{
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const char *s = strerror(errnum);
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return (s != NULL) ? s : "Unknown error";
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}
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/* description: 按16进制打印buf数据.
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param: buf -- 数据
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len -- 数据长度
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return: */
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void buf_print(char *buf, int32_t len)
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{
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int32_t i = 0;
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for(i = 0; i < len;)
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{
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printh("%02x ", (uint8_t)buf[i++]);
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if(0 == i % 32)
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{
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printh("\r\n");
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}
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}
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if(i % 32 != 0)
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{
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printh("\r\n\n");
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}
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else
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{
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printh("\n");
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}
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return;
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}
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/* description: 通过 ip 生成 mac 地址.
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param: ip_str -- 输入 ip 地址
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mac -- 输出 mac 地址
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return: E_XXXX */
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int32_t mac_generate_from_ip(char *ip_str, uint8_t *mac)
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{
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struct sockaddr_in server;
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uint32_t ip = 0;
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uint32_t temp = 0;
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if (NULL == ip_str || NULL == mac)
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{
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return E_BAD_PARAM;
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}
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/* 将 ip_str 转为数字. */
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if (inet_aton(ip_str, &server.sin_addr) < 0)
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{
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DBG(DBG_M_CLI, "inet_aton ip is error!\r\n");
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return E_BAD_PARAM;
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}
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ip = server.sin_addr.s_addr;
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/* 产生 mac. */
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srand(time(NULL));
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temp = rand();
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mac[0] = 0x68;
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mac[1] = temp & 0xff;
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mac[2] = (temp >> 8) & 0xff;
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mac[3] = (temp >> 16) & 0xff;
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mac[4] = (temp >> 24) & 0xff;
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mac[5] = (ip >> 24) & 0xff;
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return E_NONE;
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}
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/* description: 计算CRC16/MODBUS.
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param: data -- 数据
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size -- 数据长度
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return: 计算的crc值 */
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uint16_t crc16(uint8_t *data, uint16_t size)
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{
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uint16_t crc = 0xFFFF;
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uint8_t i = 0;
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while(size--)
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{
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crc = crc ^ *data++;
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for(i = 0; i < 8; i++)
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{
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if ((crc & 0x0001) > 0)
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{
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crc = crc >> 1;
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crc = crc ^ 0xa001;
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}
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else
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crc = crc >> 1;
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}
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}
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return crc;
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}
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void invert_uint8(unsigned char *dest_buf, unsigned char *src_buf)
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{
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int i;
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unsigned char tmp[4];
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tmp[0] = 0;
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for (i = 0; i < 8; i++)
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{
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if (src_buf[0] & (1 << i))
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tmp[0] |= 1 << (7 - i);
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}
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dest_buf[0] = tmp[0];
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}
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void invert_uint16(unsigned short *dest_buf, unsigned short *src_buf)
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{
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int i;
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unsigned short tmp[4];
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tmp[0] = 0;
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for (i = 0; i < 16; i++)
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{
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if (src_buf[0] & (1 << i))
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tmp[0] |= 1 << (15 - i);
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}
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dest_buf[0] = tmp[0];
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}
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uint16_t crc16_modbus(uint8_t *data, uint16_t size)
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{
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unsigned short wCRCin = 0xFFFF;
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unsigned short wCPoly = 0x8005;
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unsigned char wChar = 0;
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while (size--)
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{
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wChar = *(data++);
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invert_uint8(&wChar, &wChar);
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wCRCin ^= (wChar << 8);
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int i = 0;
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for (i = 0; i < 8; i++)
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{
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if (wCRCin & 0x8000)
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wCRCin = (wCRCin << 1) ^ wCPoly;
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else
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wCRCin = wCRCin << 1;
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}
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}
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invert_uint16(&wCRCin, &wCRCin);
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return (wCRCin);
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}
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uint32_t crc32_reflect(uint32_t value, uint8_t bits)
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{
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uint32_t reflection = 0;
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for(uint8_t i = 0; i < bits ; i++)
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{
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if (value & (1u << i))
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reflection |= 1 << (bits - 1 - i);
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}
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return reflection;
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}
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/* crc32 初始化. */
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void crc32_table_init(void)
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{
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uint32_t int1 = 1;
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uint32_t const value_high_bit = int1 << 31u;
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uint8_t dividend = 0;
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do
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{
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uint32_t remainder = 0;
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for(uint8_t mask = 1u << (CRC32_CHAR_BIT - 1u); mask; mask >>= 1)
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{
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if (dividend & mask)
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remainder ^= value_high_bit;
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if (remainder & value_high_bit)
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{
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remainder <<= 1;
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remainder ^= 0x04C11DB7u;
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}
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else
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remainder <<= 1;
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}
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crc32Table[crc32_reflect(dividend, CRC32_CHAR_BIT)] = crc32_reflect(remainder, 32);
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}
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while(++dividend);
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}
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uint32_t crc32(void const *buf, uint16_t byte_count)
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{
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uint32_t rem = 0xFFFFFFFF;
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uint8_t const * const b_begin = (uint8_t*)buf;
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uint8_t const * const b_end = b_begin + byte_count;
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for(uint8_t const *p = b_begin; p < b_end; p++)
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{
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uint8_t const byte_index = *p ^ rem;
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rem >>= CRC32_CHAR_BIT;
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rem ^= crc32Table[ byte_index ];
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}
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return ~rem;
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}
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/**
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* @brief 计算crc32值.
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* @param buf: 数据.
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* @param len: 数据长度.
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* @retval crc32值.
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*/
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uint32_t crc32_update(uint32_t crc, char* buf, uint32_t len)
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{
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uint32_t i = 0;
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for(i = 0; i < len; i++)
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crc = crc32Table[(crc ^ buf[i]) & 0xff] ^ (crc >> 8);
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return crc;
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}
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/* description: 时间统计开始.
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param:
|
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return: */
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void speed_detection_stat(void)
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{
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gettimeofday(&sd_start, NULL);
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}
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/* description: 时间统计结束.
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|
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param:
|
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return: */
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|
|
void speed_detection_end(void)
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|
|
{
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|
|
float timeuse;
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gettimeofday(&sd_end, NULL);
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timeuse = 1000000 * (sd_end.tv_sec - sd_start.tv_sec) + sd_end.tv_usec - sd_start.tv_usec;
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|
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timeuse /= 1000000;
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|
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printh("Used Time:%f\r\n", timeuse);
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|
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}
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|
|
/* description: 通用打印函数.
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|
|
param:
|
|
|
return: */
|
|
|
int printh(const char *format, ...)
|
|
|
{
|
|
|
va_list args;
|
|
|
|
|
|
va_start(args, format);
|
|
|
vty_print(format, args);
|
|
|
va_end(args);
|
|
|
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
/* description: 获取int16_t类型的版本号.
|
|
|
param:
|
|
|
return: int16_t类型的版本号 */
|
|
|
uint16_t sofrware_version_get(void)
|
|
|
{
|
|
|
char version_str[16];
|
|
|
char *str = NULL;
|
|
|
char *p = NULL;
|
|
|
uint16_t version = 0;
|
|
|
|
|
|
snprintf(version_str, 16, "%s", version_get());
|
|
|
str = strtok_r(version_str, ".", &p);
|
|
|
while(str != NULL)
|
|
|
{
|
|
|
version = version << 8;
|
|
|
version |= (uint8_t)(atoi(str));
|
|
|
str = strtok_r(NULL, ".", &p);
|
|
|
}
|
|
|
|
|
|
return version;
|
|
|
}
|
|
|
|
|
|
/* description: 根据传入的字符串转换成mac地址.
|
|
|
param:
|
|
|
return: */
|
|
|
int32_t str_to_mac(char *mac_str, OUT uint8_t *mac)
|
|
|
{
|
|
|
char *str = NULL;
|
|
|
char *p = NULL;
|
|
|
uint8_t len = 0;
|
|
|
uint8_t i = 0;
|
|
|
|
|
|
/* 按:分词 */
|
|
|
str = strtok_r(mac_str, ":", &p);
|
|
|
while(str != NULL)
|
|
|
{
|
|
|
/* 检查mac长度 */
|
|
|
if (len >= 6)
|
|
|
{
|
|
|
return E_BAD_PARAM;
|
|
|
}
|
|
|
|
|
|
/* 检查字符串 */
|
|
|
for(i = 0; str[i] && str[i] != '\0'; i++)
|
|
|
{
|
|
|
if (!((str[i] >= '0' && str[i] <= '9')
|
|
|
|| (str[i] >= 'a' && str[i] <= 'f')
|
|
|
|| (str[i] >= 'A' && str[i] <= 'F')))
|
|
|
{
|
|
|
return E_BAD_PARAM;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/* 检查数据长度 */
|
|
|
if (i != 2)
|
|
|
{
|
|
|
return E_BAD_PARAM;
|
|
|
}
|
|
|
mac[len++] = strtol(str, NULL, 16);
|
|
|
|
|
|
/* 获取下个数据 */
|
|
|
str = strtok_r(NULL, ":", &p);
|
|
|
}
|
|
|
|
|
|
return E_NONE;
|
|
|
}
|
|
|
|
|
|
/* description: 根据传入的字符串转换成设备id.
|
|
|
param:
|
|
|
return: */
|
|
|
int32_t str_to_id(char *id_str, OUT uint32_t *id)
|
|
|
{
|
|
|
char *str = NULL;
|
|
|
char *p = NULL;
|
|
|
uint8_t len = 0;
|
|
|
uint8_t i = 0;
|
|
|
|
|
|
/* 按:分词 */
|
|
|
str = strtok_r(id_str, ".", &p);
|
|
|
while(str != NULL && len < 2)
|
|
|
{
|
|
|
/* 检查id长度 */
|
|
|
if (len >= 2)
|
|
|
{
|
|
|
return E_BAD_PARAM;
|
|
|
}
|
|
|
|
|
|
/* 检查字符串 */
|
|
|
for(i = 0; str[i] && str[i] != '\0'; i++)
|
|
|
{
|
|
|
if (!(str[i] >= '0' && str[i] <= '9'))
|
|
|
{
|
|
|
return E_BAD_PARAM;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
id[len++] = strtol(str, NULL, 10);
|
|
|
|
|
|
/* 获取下个数据 */
|
|
|
str = strtok_r(NULL, ".", &p);
|
|
|
}
|
|
|
|
|
|
return E_NONE;
|
|
|
}
|
|
|
|
|
|
int32_t bitmap_set(uint8_t *buf, int32_t nbit, int32_t buf_len)
|
|
|
{
|
|
|
if ((NULL == buf) || (nbit >= buf_len * 8))
|
|
|
{
|
|
|
return E_BAD_PARAM;
|
|
|
}
|
|
|
|
|
|
buf[nbit / 8] |= 1 << (nbit % 8);
|
|
|
|
|
|
return E_NONE;
|
|
|
}
|
|
|
|
|
|
int32_t bitmap_reset(uint8_t *buf, int32_t nbit, int32_t buf_len)
|
|
|
{
|
|
|
if ((NULL == buf) || (nbit >= buf_len * 8))
|
|
|
{
|
|
|
return E_BAD_PARAM;
|
|
|
}
|
|
|
|
|
|
buf[nbit / 8] &= ~(1 << (nbit % 8));
|
|
|
|
|
|
return E_NONE;
|
|
|
}
|
|
|
|
|
|
int32_t is_bitmap_set(uint8_t *buf, int32_t nbit, int32_t buf_len)
|
|
|
{
|
|
|
if ((NULL == buf) || (nbit >= buf_len * 8))
|
|
|
{
|
|
|
return FALSE;
|
|
|
}
|
|
|
|
|
|
return buf[nbit / 8] & (1 << (nbit % 8));
|
|
|
}
|
|
|
|
|
|
int32_t time_str_to_long(char *date, char *time, uint32_t *t)
|
|
|
{
|
|
|
struct tm stm;
|
|
|
int32_t year, month, day, hour, minute,second;
|
|
|
|
|
|
if (sscanf(date, "%d-%d-%d", &year, &month, &day) != 3)
|
|
|
{
|
|
|
return E_BAD_PARAM;
|
|
|
}
|
|
|
if (sscanf(time, "%d:%d:%d", &hour, &minute, &second) != 3)
|
|
|
{
|
|
|
return E_BAD_PARAM;
|
|
|
}
|
|
|
|
|
|
stm.tm_year = year - 1900;
|
|
|
stm.tm_mon = month - 1;
|
|
|
stm.tm_mday = day;
|
|
|
stm.tm_hour = hour;
|
|
|
stm.tm_min = minute;
|
|
|
stm.tm_sec = second;
|
|
|
stm.tm_isdst = 0;
|
|
|
*t = mktime(&stm);
|
|
|
|
|
|
return E_NONE;
|
|
|
}
|
|
|
|
|
|
uint16_t version_str_to_int(void)
|
|
|
{
|
|
|
uint32_t version_m = 0;
|
|
|
uint32_t version_s = 0;
|
|
|
uint32_t version_hm = 0;
|
|
|
uint32_t version_hs = 0;
|
|
|
uint32_t n = 0;
|
|
|
|
|
|
n = sscanf(version_get(), "%d.%d.%d.%d", &version_hm, &version_hs, &version_m, &version_s);
|
|
|
if (n != 4)
|
|
|
{
|
|
|
return 0xffff;
|
|
|
}
|
|
|
|
|
|
return (version_m << 8 | (version_s & 0xff)) & 0xffff;
|
|
|
}
|
|
|
|
|
|
void time_set(time_t timestamp)
|
|
|
{
|
|
|
struct tm *p =localtime(×tamp);
|
|
|
struct tm tptr = {0};
|
|
|
struct timeval tv = {0};
|
|
|
|
|
|
tptr.tm_year = p->tm_year;
|
|
|
tptr.tm_mon = p->tm_mon;
|
|
|
tptr.tm_mday = p->tm_mday;
|
|
|
tptr.tm_hour = p->tm_hour;
|
|
|
tptr.tm_min = p->tm_min;
|
|
|
tptr.tm_sec = p->tm_sec;
|
|
|
|
|
|
tv.tv_sec = mktime(&tptr);
|
|
|
tv.tv_usec = 0;
|
|
|
settimeofday(&tv, NULL);
|
|
|
system("hwclock -w");
|
|
|
}
|
|
|
|
|
|
boot_msg_t g_bootmsg[] =
|
|
|
{
|
|
|
{BOOT_NONE, "Boot none."},
|
|
|
{BOOT_SYSTEM_RESET, "System reboot..."},
|
|
|
{BOOT_SYSTEM_LOGOUT, "System logout..."},
|
|
|
{BOOT_REMOTE_CFG_SET, "Remote device info change..."},
|
|
|
{BOOT_REMOTE_RESET, "Remote reboot..."},
|
|
|
{BOOT_REMOTE_UPDATE, "Remote update..."},
|
|
|
{BOOT_FILE_RECOVER, "File recover..."},
|
|
|
{BOOT_4G_ERR, "4G is disconnect..."},
|
|
|
{BOOT_CONNECT_ERR, "Server is disconnect..."},
|
|
|
{BOOT_TIMER, "Timer reset..."},
|
|
|
{BOOT_MAX, NULL}
|
|
|
};
|
|
|
|
|
|
void reboot_system(int module, BOOT_MSG type)
|
|
|
{
|
|
|
char *pmsg = NULL;
|
|
|
|
|
|
is_system_reboot = TRUE;
|
|
|
|
|
|
for (BOOT_MSG i = BOOT_NONE; i < BOOT_MAX; i++)
|
|
|
{
|
|
|
if (g_bootmsg[i].type == type)
|
|
|
{
|
|
|
pmsg = g_bootmsg[i].msg;
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
if (pmsg)
|
|
|
{
|
|
|
log_out(module, LOG_LVL_WARN, pmsg);
|
|
|
//log_out(module, LOG_LVL_WARN, "Now,start reboot system...");
|
|
|
system("sync");
|
|
|
sleep(3);
|
|
|
system("reboot -f");
|
|
|
}
|
|
|
}
|
|
|
|
|
|
|
|
|
/************************ (C) COPYRIGHT LandPower ***** END OF FILE ****************/
|