基于机智云物联网平台MCU模式基础教程及远程OTA
编写背景：
用户如果将开发了的产品发布上线销售，后期需要更新固件和程序，就需要用到远程OTA固件升级，就能对已发布的产品进行远程升级。
材料准备：
1.机智云4G模组GC211，此模组采用中移模组ML302，需烧录机智云GAgent固件，可在机智云淘宝店铺购买或者联系商务获取，此模组支持网络，移动，联通，电信4G网络，可前往机智云官方和淘宝店铺购买。https://shop159680395.taobao.com/
https://club.gizwits.com/data/attachment/forum/202101/26/142603xtioxv9n62xmvoz0.png.thumb.jpg
2.秉火【F103开发板-指南者】
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正文：
云端部署
创建新产品，可根据自己需求选择。
https://club.gizwits.com/data/attachment/forum/202101/26/142604ceep1868iei8orop.png.thumb.jpg
添加如下数据点，可根据自己需求
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生成STM32F103代码下载备用
https://club.gizwits.com/data/attachment/forum/202101/26/142605ldjjkc3qzqoicpqk.png.thumb.jpg
简述STM32 启动
ARM7/ARM9 内核的控制器在复位后，CPU 会从存储空间的绝对地址0x000000 取出第一条指令执行复位中断服务程序的方式启动，即固定了复位后的起始地址为0x000000（PC =0x000000）同时中断向量表的位置并不是固定的。然而，Cortex-M3 内核启动有3 种情况：
1、通过boot 引脚设置可以将中断向量表定位于SRAM 区，即起始地址为0x2000000，同时复位后PC 指针位于0x2000000 处;
2、通过boot 引脚设置可以将中断向量表定位于FLASH 区，即起始地址为0x8000000，同时复位后PC 指针位于0x8000000 处;
3、通过boot 引脚设置可以将中断向量表定位于内置Bootloader 区;
Cortex-M3 内核规定，起始地址必须存放堆顶指针，而第二个地址则必须存放复位中断
入口向量地址，这样在Cortex-M3 内核复位后，会自动从起始地址的下一个32 位空间取出复位中断入口向量，跳转执行复位中断服务程序。对比ARM7/ARM9 内核，Cortex-M3 内核则是固定了中断向量表的位置而起始地址是可变化的。
总结一下STM32 的启动文件和启动过程。首先对栈和堆的大小进行定义，并在代码区的起始处建立中断向量表，其第一个表项是栈顶地址，第二个表项是复位中断服务入口地址。
然后在复位中断服务程序中跳转C/C++标准实时库的main 函数，完成用户堆栈等的初始化后，跳转.c 文件中的main 函数开始执行C 程序。假设STM32被设置为从内部FLASH 启动（这也是最常见的一种情况），中断向量表起始地位为0x8000000，则栈顶地址存放于0x8000000处，而复位中断服务入口地址存放于0x8000004 处。当STM32 遇到复位信号后，则从0x80000004 处取出复位中断服务入口地址，继而执行复位中断服务程序，然后跳转main函数，最后进入mian 函数。
分析下OTA 需求，我们将建立两个工程，分别是Bootloader 还有APP，我们将Bootloader下载到FLASH 空间0x8000000 地址处，那么STM32 启动后会首先执行我们的Bootloader 程序，然后就可以按照我们意愿实现OTA 了。 FLASH 区间划分
根据需求，我们将STM32F103VET6 这个芯片Flash 空间划分出4 个区域：Bootloader、FLAG、APP、APP_BAK。四个区间作用描述如下：
Bootloader:存储Bootloader 固件，MCU 上电后首先运行该固件。
FLAG:存储有关升级的相关标志位，Bootloader 和APP 都需要操作该区域。
升级标志位（2B）
固件大小（4B）
MD5加密数据（16B）
APP：存储用户程序固件。
APPBAK:临时存储云端下发的新固件，升级固件的一个过渡存储区。
STM32F103VET6分区方案如下图所示：
https://club.gizwits.com/data/attachment/forum/202101/26/143637em7l8qqm54m88d9d.png.thumb.jpg
BOOTLOADER分区部分
Bootloader程序流程
Bootloader 的主要职能是在有升级任务的时候将 APPBAK 分区里面的固件拷贝到 APP 区域。当然，这期间需要做很多的工作，比如升级失败的容错等等。具体的流程可以参考图示。需要注意的是，在校验 MD5 正确后开始搬运固件数据期间，MCU 出现故障（包括突然断电），MCU 应发生复位操作（FLAG 区域数据未破坏），复位后重新开始执行 Bootloader，从而避免 MCU 刷成板砖。
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Bootloader程序配置
为了方便构架，此处我采用cubemx构建项目，生成keil工程。
创建STM32F103VE项目
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配置外部时钟
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配置时钟72M
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配置debug为serisl wire
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配置串口4为BootLoader的日志打印口。
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生成keil代码添加驱动flash.c，gagent_md5.c和app.c以及对应的组，如何添加此处不过多介绍（基础的软件操作），只提供文件路径。
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驱动文件的编写以及函数介绍我此处不过多介绍，可以在福建进行下载源文件，也可以在文章末尾复制代码。代码只讲重点部分。
Main.c添加头文件#include "app.h"
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主函数添加APP_Process();https://club.gizwits.com/data/attachment/forum/202101/26/142610hbthbickjvjk8i1m.png.thumb.jpg
根据自己分区大小设置区域，我的是18K，2k，54k，54k
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Bootloader编译设置
按照 Bootloader 流程编写好代码，需要我们对 KEIL 工程做相应配置，需要注意的是编译的 Bootloader 固件大小不超过最大可允许的 18KB。Keil 编译器需要设置如下：
https://club.gizwits.com/data/attachment/forum/202101/26/142611lijjfizhi0nnnp0w.png.thumb.jpg
Flash 烧写地址设置有效https://club.gizwits.com/data/attachment/forum/202101/26/142611ssna2ss08m1dcg0m.png.thumb.jpg
设置ST-LINK按块擦除 FLASH 区间和烧写程序https://club.gizwits.com/data/attachment/forum/202101/26/142611ndgdrahoygya1rjd.png.thumb.jpghttps://club.gizwits.com/data/attachment/forum/202101/26/142612vrpfri5hrphtfs5f.png.thumb.jpghttps://club.gizwits.com/data/attachment/forum/202101/26/142612smggcgc7fjlwgrj4.png.thumb.jpg
编译烧录程序，到此BootLoader编写烧录完成。https://club.gizwits.com/data/attachment/forum/202101/26/142612x3noxspyzpyioogv.png.thumb.jpg
APP程序分区部分
固件接收流程
做好 BOOTLOADER 工作后，我们开始写 APP 分区的代码。APP 分区固件的编写要注意硬件版本号和软件版本号，软件版号作为升级迭代很重要的标志。需要注意的是，中断向量地址偏移的定义，这个地方需要我们尤其注意，我在开发过程中在这个地方排查了好长时间。STM32 标准库默认中断向量地址偏移为0x0,但是我们APP 实际的偏移是0x5000。如果不修改，APP 也可以正常加载运行，但是不会相应中断。所以，我们需要根据实际APP 下载的起始地址，对中断向量地址偏移做定义。
https://club.gizwits.com/data/attachment/forum/202101/26/142613fc7ocjocioqlqim7.png.thumb.jpg
CUBEMX部署
解压云端生成的代码，由于生成的代码是STM32F103c8的，我们需要通过CUBEMX转换成STM32F103VET6的代码来适应我们的秉火开发板,创建一个新的cubeMX项目，导入自动代码的CUBEMX工程.
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目录保存在解压代码所在的路径。
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修改时钟树为72M，注意需要同BootLoader时钟。
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根据项目需求以及我们自己创建的数据点，我们需要控制RGB灯，蜂鸣器，DHT11，在此处我们需要对引脚进行初始化。
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配置RGB灯，采用定时器输出PWM控制。
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有源蜂鸣器，和默认代码按键2冲突，修改按键2的GPIO为PB15
https://club.gizwits.com/data/attachment/forum/202101/26/142615qmneb2eymwebwtkk.png.thumb.jpg
配置温湿度传感器DHT11
为每个单独的文件生成.C.H文件，方便调用头文件
https://club.gizwits.com/data/attachment/forum/202101/26/142615pe4gbrl5g623r46q.png.thumb.jpg
生成KEIL的代码
https://club.gizwits.com/data/attachment/forum/202101/26/142615ljo0lvooa1bhcm0u.png.thumb.jpg
到此我们就完成了项目的构建。
编译器设置
因为硬件FLASH 空间限定，我们需要对APP 的固件大小做严格的限制。本方案，
针对秉火开发板 我们可允许的最大固件为54KB。需要升级的新固件同样最大可支持54KB。
1、设置FLASH 固件下载地址
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2、配置中断向量偏移地址设置
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3.重新构建工程，添加相关头文件。
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4.添加flash.h,flash.h, gagent_md5.c, gagent_md5.h, app.c文件到项目
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5. 在mian.c里面添加一下头文件
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在main.c里面添加如下代码
https://club.gizwits.com/data/attachment/forum/202101/26/142618lyj4iiwj44cryk4t.png.thumb.jpg
6.在gizwits_protocol.h里面添加如下代码
[*]/************************************
[*]* OTA
[*]************************************/
[*]#define PIECE_MAX_LEN256
[*]
[*]#define FILE_MD5_MAX_LEN32
[*]//#define SSL_MAX_LEN (FILE_MD5_MAX_LEN/2)
[*]
[*]#define UPDATE_IS_HEX_FORMAT 0 // Piece Send Format 0,nohex; 1,hex
[*]
[*]typedef enum
[*]{
[*] HEX = 0,
[*]
[*] BIN,
[*]
[*]} otaDataType;
[*]
[*]__packed typedef struct
[*]
[*]{
[*] uint16_t piecenum;
[*]
[*] uint16_t piececount;
[*]
[*] uint8_t piececontent;
[*]
[*]} updataPieceData_TypeDef;
[*]
[*]typedef struct
[*]{
[*] uint16_t rom_statue;
[*]
[*] uint32_t rom_size;
[*]
[*] uint8_tssl_data;
[*]
[*]} updateParamSave_t;
[*]
[*]typedef struct
[*]{
[*] uint8_t otaBusyModeFlag;
[*]
[*] uint32_t updateFileSize; //Rom Size
[*]
[*] MD5_CTX ctx;
[*]
[*] updateParamSave_t update_param;//Save Update Param
[*]
[*]} mcuOTA_t;
[*]int8_t Pro_W2D_UpdateDataHandle(uint8_t *inData , uint32_t dateLen , otaDataType formatType);
[*]
[*]int8_t Pro_D2W_UpdateReady(uint8_t *md5Data , uint16_t md5Len);
[*]
[*]int8_t Pro_W2D_UpdateCmdHandle(uint8_t *inData,uint32_t dataLen);
[*]
[*]void Pro_D2W_UpdateSuspend(void);
[*]void Pro_D2W_Ask_Module_Reboot(void);
复制代码
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7. 在gizwits_protocol.c里面添加相应的代码，此处不一一例举，只截图详细，详细代码请看附件代码（注意修改gizwitsHandle函数，此处不做截图）。
https://club.gizwits.com/data/attachment/forum/202101/26/142620hqqria4qw6rzeir8.png.thumb.jpg
8.在gizwits_prduct.h修改这个参数可改变版本号，当前版本需要大于上一个版本。
https://club.gizwits.com/data/attachment/forum/202101/26/142620rf39469kgeqag4s9.png.thumb.jpg
9.将代码下载到对应的地址，前面已配置好地址。后面需要生成bin文件才能进行推送（机智云最新版本的升级界面支持hex），在配置里面修改生成bin文件。
https://club.gizwits.com/data/attachment/forum/202101/26/142621ol0e7a4eg4jfejmm.png.thumb.jpg
https://club.gizwits.com/data/attachment/forum/202101/26/142622ocittc9ici7nccje.png.thumb.jpg
10.在产品的OTA界面进行固件升级，升级配置如下，手动推送需要主动更新，静默推送自动更新，其余按照要求配置即可。
https://club.gizwits.com/data/attachment/forum/202101/26/142622q5sw67v64zc4lcsf.png.thumb.jpg
到此本教程结束，如有疑问联系机智云技术支持，15120205205（QQ,微信，电话同号）
FLASH驱动编写Flash.c1
[*] #include "flash.h"
[*]2. #include <stdio.h>
[*]
[*]3. #include <string.h>
[*]
[*]4. volatile uint32_t flashWriteOffset = SYS_APP_BAK_SAVE_ADDR_BASE;
[*]
[*]5. volatile uint32_t flashReadOffset = SYS_APP_BAK_SAVE_ADDR_BASE;
[*]
[*]6. /* Exported types ------------------------------------------------------------*/
[*]
[*]7. /** @defgroup FLASH_Exported_Types FLASH Exported Types
[*]
[*]8. * @{
[*]9. */
[*]10./* MCU OTA */
[*]11.void flash_erase_page(uint8_t flashPage , uint32_t addr_base)
[*]
[*]12.{
[*]13. HAL_FLASH_Unlock();
[*]14. FLASH_EraseInitTypeDef f;
[*]
[*]15. f.TypeErase = FLASH_TYPEERASE_PAGES;
[*]
[*]16. f.PageAddress = flashPage + (addr_base - SYS_Bootloader_SAVE_ADDR_BASE)/FLASH_PAGE_SIZE;
[*]
[*]17. f.NbPages = 1;
[*]
[*]18.
[*]19. uint32_t PageError = 0;
[*]
[*]20. HAL_FLASHEx_Erase(&f, &PageError);
[*]
[*]21. HAL_FLASH_Lock();
[*]22.}
[*]23.void flash_erase(uint32_t size , uint32_t addr_base)
[*]
[*]24.{
[*]25. uint32_t flashPageSum;
[*]
[*]26. uint32_t i;
[*]27. /*如果小于2048做处理*/
[*]28. if(size < FLASH_PAGE_SIZE)
[*]
[*]29. size = FLASH_PAGE_SIZE; //
[*]
[*]30. /* 计算需要擦写的Flash页 */
[*]31. if((size % FLASH_PAGE_SIZE) == 0)
[*]
[*]32. {
[*]33. flashPageSum = size / FLASH_PAGE_SIZE; //小于一页擦除一页
[*]
[*]34. }
[*]35. else
[*]36. {
[*]37. flashPageSum = (size / FLASH_PAGE_SIZE) + 1; //大于一页擦除n+1页
[*]
[*]38. }
[*]39. for(i = 0;i<flashPageSum;i++)
[*]
[*]40. {
[*]41. flash_erase_page(i,addr_base); //基址累加擦除flash
[*]42. }
[*]43.}
[*]44.
[*]45.void writeFlash(uint64_t * buf_to_save , uint16_t len , uint32_t wFlashAddr)
[*]
[*]46.{
[*]47. uint16_t count=0;
[*]
[*]48. if(wFlashAddr >= 0x08020000)
[*]
[*]49. {
[*]50.#ifdef DEBUG
[*]51. printf("Waring:Flash Write Addr Error\r\n");
[*]
[*]52.#endif
[*]53. flashWriteOffset = SYS_APP_BAK_SAVE_ADDR_BASE;
[*]
[*]54. return;
[*]
[*]55. }
[*]56. HAL_FLASH_Unlock();
[*]57.
[*]58. while(count < len)
[*]59. {
[*]60. HAL_FLASH_Program(FLASH_TYPEPROGRAM_DOUBLEWORD,(wFlashAddr + count*8),buf_to_save); //вflashһٶַ֘дɫѫؖè16λé
[*]
[*]61. count ++;
[*]
[*]62. }
[*]63. HAL_FLASH_Lock();
[*]64.}
[*]65.
[*]66.void readFlash(uint64_t * buf_to_get,uint16_t len , uint32_t readFlashAddr)
[*]
[*]67.{
[*]68. uint16_t count=0;
[*]69. while(count<len)
[*]70. {
[*]71. buf_to_get=*(uint64_t *)(readFlashAddr + count*8);
[*]
[*]72. count++;
[*]73. }
[*]74.}
[*]75./*写Flash,控制写长度,Flash地址偏移*/
[*]76.void wFlashData(uint8_t * buf_to_save , uint16_t len , uint32_t wFlashAddr)
[*]
[*]77.{
[*]78. uint8_t WriteFlashTempBuf;//写Flash临时缓冲区
[*]
[*]79. uint16_t WriteFlashTempLen = 0;//写Flash长度
[*]
[*]80. uint8_t rem;
[*]81. memset(WriteFlashTempBuf,0xEE,sizeof(WriteFlashTempBuf));//写Flash临时缓冲区首先全部填充0xEE
[*]
[*]82. memcpy(WriteFlashTempBuf,buf_to_save,len);//临时缓冲区
[*]
[*]83. WriteFlashTempLen = len;
[*]
[*]84. if(len%8 != 0)
[*]
[*]85. {
[*]86. rem = len%8;
[*]87. WriteFlashTempLen = len +8 - rem;
[*]88. }
[*]89. writeFlash((uint64_t *)&WriteFlashTempBuf ,WriteFlashTempLen/8 , wFlashAddr);
[*]
[*]90.}
[*]91.void rFlashData(uint8_t * buf_to_get , uint16_t len , uint32_t rFlashAddr)
[*]
[*]92.{
[*]93. uint8_t ReadFlashTempBuf;//读Flash临时缓冲区
[*]
[*]94. uint16_t ReadFlashTempLen = 0;//读Flash长度
[*]
[*]95. uint8_t rem;
[*]
[*]96. if(len%8 == 0)
[*]
[*]97. {
[*]98. ReadFlashTempLen = len;
[*]
[*]99. readFlash((uint64_t *)&ReadFlashTempBuf,ReadFlashTempLen/8 , rFlashAddr);
[*]
[*]100. memcpy(buf_to_get,ReadFlashTempBuf,len);
[*]
[*]101. }
[*]102. else
[*]103. {
[*]104. rem = len%8;
[*]105. ReadFlashTempLen = len + 8 - rem;
[*]
[*]106. readFlash((uint64_t *)&ReadFlashTempBuf,ReadFlashTempLen/8 , rFlashAddr);
[*]
[*]107. memcpy(buf_to_get,ReadFlashTempBuf,len);
[*]
[*]108. }
[*]109. }
[*]110. /***IAP****/
[*]111. typedefvoid (*iapfun)(void);
[*]
[*]112. iapfun jump2app;
[*]
[*]113. uint16_t iapbuf;
[*]
[*]114.
[*]115. #define BITBAND(addr, bitnum) ((addr & 0xF0000000)+0x2000000+((addr &0xFFFFF)<<5)+(bitnum<<2))
[*]
[*]116. #define MEM_ADDR(addr)*((volatile unsigned long*)(addr))
[*]
[*]117. #define BIT_ADDR(addr, bitnum) MEM_ADDR(BITBAND(addr, bitnum))
[*]
[*]118.
[*]119.
[*]120. /*#define iar
[*]121. #ifdef iar
[*]122. //设置栈顶地址
[*]123. //addr:栈顶地址
[*]124.
[*]125. void MSR_MSP(uint32_t addr)
[*]
[*]126. {
[*]127. asm("MSR MSP, r0 ");
[*]
[*]128. asm("BX r14");
[*]
[*]129. }
[*]130. #else
[*]131. __asm void MSR_MSP(uint32_t addr)
[*]
[*]132. {
[*]133. MSR MSP, r0 //set Main Stack value
[*]
[*]134. BX r14
[*]
[*]135. }
[*]136. #endif
[*]137. */
[*]138. __asm void MSR_MSP(uint32_t addr)
[*]
[*]139. {
[*]140. MSR MSP, r0 //set Main Stack value
[*]
[*]141. BX r14
[*]142. }
[*]143.
[*]144.
[*]145. void iap_load_app(uint32_t appxaddr)
[*]
[*]146. {
[*]147. if(((*(vu32*)appxaddr)&0x2FFE0000)==0x20000000)
[*]148. {
[*]149. #ifdef DEBUG
[*]150. printf("Stack Success!\r\n");
[*]151. #endif
[*]152. jump2app=(iapfun)*(vu32*)(appxaddr+4);
[*]153. MSR_MSP(*(vu32*)appxaddr);
[*]154. /* Relocate vector table */
[*]155. SCB->VTOR = (uint32_t)(appxaddr - SYS_Bootloader_SAVE_ADDR_BASE);
[*]
[*]156. jump2app();
[*]157. }
[*]158. else
[*]159. {
[*]160. #ifdef DEBUG
[*]161. printf("Stack Failed!\r\n");
[*]162. #endif
[*]163. }
[*]164. }
复制代码
flash.h1.
[*] #ifndef _FLASH_
[*]2. #define _FLASH_
[*]3. #include "stm32f1xx_hal.h"
[*]
[*]4. //#define DEBUG
[*]5. //#define PROTOCOL_DEBUG
[*]6. typedef uint32_tu32;
[*]
[*]7. typedef uint16_t u16;
[*]
[*]8. typedef uint8_tu8;
[*]
[*]9. typedef __IO uint32_tvu32;
[*]
[*]10.typedef __IO uint16_t vu16;
[*]
[*]11.typedef __IO uint8_tvu8;
[*]
[*]12./* BootLoader Flash首地址 */
[*]13.#define SYS_Bootloader_SAVE_ADDR_BASE 0x08000000//Bootloader首地址//支持Bootloader大小18KB
[*]
[*]14./* 升级参数存储 */
[*]15.#define UPDATE_PARAM_SAVE_ADDR_BASE 0x08004800
[*]
[*]16.#define UPDATE_PARAM_MAX_SIZE (2*1024)//支持参数大小2KB
[*]
[*]17./* APP Flash首地址 */
[*]18.#define SYS_APP_SAVE_ADDR_BASE 0x08005000
[*]
[*]19.#define APP_DATA_MAX_SIZE (54*1024)//支持APP大小54KB
[*]
[*]20./* APP BAK Flash首地址 */
[*]21.#define SYS_APP_BAK_SAVE_ADDR_BASE 0x08012800
[*]
[*]22.#define APP_BAK_DATA_MAX_SIZE (54*1024)//支持APP_BAK大小54KB
[*]
[*]23./* 升级参数 */
[*]24.#define PIECE_MAX 256
[*]
[*]25.#define SSL_MAX_LEN 16
[*]
[*]26.typedef struct
[*]
[*]27.{
[*]28. uint16_t rom_statue;
[*]
[*]29. uint32_t rom_size;
[*]
[*]30. uint8_tssl_data;
[*]
[*]31.}update_param_def;
[*]32./* FLASH页大小 */
[*]33.//#define FLASH_PAGE_SIZE 0x400 //1KB
[*]
[*]34./* 大数据分片大小 */
[*]35.//#define BIGDATA_PIECE_MAX 200 //支持的最大数据分片即大数据最大传输单元,200B
[*]
[*]36.#define PIECE_MAX_LEN256
[*]
[*]37.void save_param_to_flash(uint16_t * buf_to_save,uint16_t len );
[*]
[*]38.void read_param_from_flash(uint16_t * buf_to_get,uint16_t len);
[*]
[*]39.void set_flash_flag_to_updata(uint16_t crc_code);
[*]
[*]40.void rFlashData(uint8_t * buf_to_get , uint16_t len , uint32_t rFlashAddr);
[*]
[*]41.void wFlashData(uint8_t * buf_to_save , uint16_t len , uint32_t wFlashAddr);
[*]
[*]42.void iap_load_app(uint32_t appxaddr);
[*]
[*]43.void flash_erase(uint32_t size , uint32_t addr_base);
[*]
[*]44.#endif
复制代码
APP驱动编写app.c1.
[*] /**
[*]2. ****************************************************
[*]
[*]3. * @file : main.c
[*]
[*]4. * @brief : Main program body
[*]
[*]5. ****************************************************
[*]6. * @attention
[*]7. *
[*]8. * <h2><center>© Copyright (c) 2019 STMicroelectronics.
[*]
[*]9. * All rights reserved.</center></h2>
[*]
[*]10. *
[*]11. * This software component is licensed by ST under BSD 3-Clause license,
[*]
[*]12. * the "License"; You may not use this file except in compliance with the
[*]
[*]13. * License. You may obtain a copy of the License at:
[*]
[*]14. * opensource.org/licenses/BSD-3-Clause
[*]
[*]15. *
[*]16. ****************************************************
[*]
[*]17. */
[*]18./* Includes ------------------------------------------------------------------*/
[*]
[*]19.#include "app.h"
[*]
[*]20.#include "../Src/md5/gagent_md5.h"
[*]
[*]21.#include "../Hal/flash.h"
[*]
[*]22.#include "usart.h"
[*]
[*]23.
[*]24./*Global Variable*/
[*]25./**
[*]26. * @briefMain program.
[*]
[*]27. * @paramNone
[*]
[*]28. * @retval None
[*]
[*]29. */
[*]30.update_param_def update_param;
[*]
[*]31.uint8_t md5_calc;
[*]
[*]32.MD5_CTX ctx;
[*]33.void mcu_restart()
[*]34.{
[*]35. //__set_FAULTMASK(1);
[*]
[*]36. NVIC_SystemReset();
[*]
[*]37.}
[*]38.int8_t ROM_MD5_Check(uint32_t sys_size , uint32_t FlashAddr , uint8_t *ssl)
[*]
[*]39.{
[*]40. uint8_t update_data_tmp;
[*]
[*]41. uint32_t load_loop = 0;
[*]
[*]42. uint32_t remaind_data_len = sys_size;
[*]
[*]43. uint32_t valid_data_len = 0;
[*]
[*]44.
[*]45. GAgent_MD5Init(&ctx);
[*]
[*]46. if(0 == sys_size%PIECE_MAX)
[*]
[*]47. {
[*]48. load_loop = sys_size / PIECE_MAX;
[*]
[*]49. }
[*]50. else
[*]51. {
[*]52. load_loop = sys_size / PIECE_MAX + 1;
[*]
[*]53. }
[*]54.#ifdef DEBUG
[*]55. printf("Check New Sys ...loop = %d\r\n",load_loop);
[*]
[*]56.#endif
[*]57. for(uint32_t i = 0;i<load_loop;i++)
[*]
[*]58. {
[*]59. if(remaind_data_len > PIECE_MAX)
[*]
[*]60. {
[*]
[*]61. valid_data_len = PIECE_MAX;
[*]
[*]62. }
[*]
[*]63. else
[*]
[*]64. {
[*]
[*]65. valid_data_len = remaind_data_len;
[*]
[*]66. }
[*]
[*]67. memset(update_data_tmp,0,PIECE_MAX);
[*]
[*]68. rFlashData(update_data_tmp, valid_data_len, FlashAddr + i*PIECE_MAX);
[*]
[*]69. GAgent_MD5Update(&ctx, update_data_tmp, valid_data_len);
[*]
[*]70. remaind_data_len = remaind_data_len - valid_data_len;
[*]
[*]71.#ifdef DEBUG
[*]72. printf("*");
[*]
[*]73.#endif
[*]74. }
[*]75.#ifdef DEBUG
[*]76. printf("\r\n");
[*]77.#endif
[*]78. GAgent_MD5Final(&ctx, md5_calc);
[*]
[*]79.#ifdef DEBUG
[*]80. printf("MD5 Calculate Success \r\n ");
[*]
[*]81.#endif
[*]82. if(memcmp(ssl, md5_calc, SSL_MAX_LEN) != 0)
[*]
[*]83. {
[*]84.#ifdef DEBUG
[*]85. printf("Md5_Cacl Check Faild ,MCU OTA Faild\r\n ");
[*]
[*]86.#endif
[*]87.#ifdef PROTOCOL_DEBUG
[*]
[*]88. printf("MD5: ");
[*]
[*]89. for(uint16_t i=0; i<SSL_MAX_LEN; i++)
[*]
[*]90. {
[*]
[*]91. printf("%02x ", md5_calc);
[*]
[*]92. }
[*]
[*]93. printf("\r\n");
[*]
[*]94.#endif
[*]95. return -1;
[*]
[*]96. }
[*]97. else
[*]98. {
[*]99.#ifdef DEBUG
[*]100. printf("MD5 Check Success ,MCU OTA Success\r\n ");
[*]
[*]101. #endif
[*]102. return 0;
[*]
[*]103. }
[*]104. }
[*]105. uint8_t update_new_system(uint32_t sys_size)
[*]
[*]106. {
[*]107. uint8_t update_data_tmp;
[*]
[*]108. uint32_t load_loop = 0;
[*]
[*]109. uint32_t remaind_data_len = sys_size;
[*]
[*]110. uint32_t valid_data_len = 0;
[*]
[*]111.
[*]112. if(0 == sys_size%PIECE_MAX)
[*]
[*]113. {
[*]114. load_loop = sys_size / PIECE_MAX;
[*]
[*]115. }
[*]116. else
[*]117. {
[*]118. load_loop = sys_size / PIECE_MAX + 1;
[*]
[*]119. }
[*]120. #ifdef DEBUG
[*]121. printf("Copy New Sys ...loop = %d\r\n",load_loop);
[*]
[*]122. #endif
[*]123.
[*]124. flash_erase(update_param.rom_size , SYS_APP_SAVE_ADDR_BASE);
[*]
[*]125. #ifdef DEBUG
[*]126. printf("Copy New Sys\r\n");
[*]
[*]127. #endif
[*]128. for(uint32_t i = 0;i<load_loop;i++)
[*]
[*]129. {
[*]130. if(remaind_data_len > PIECE_MAX)
[*]
[*]131. {
[*]
[*]132. valid_data_len = PIECE_MAX;
[*]
[*]133. }
[*]
[*]134. else
[*]
[*]135. {
[*]
[*]136. valid_data_len = remaind_data_len;
[*]
[*]137. }
[*]
[*]138. memset(update_data_tmp,0,PIECE_MAX);
[*]
[*]139. rFlashData(update_data_tmp, valid_data_len, SYS_APP_BAK_SAVE_ADDR_BASE + i*PIECE_MAX);
[*]
[*]140.
[*]
[*]141. wFlashData(update_data_tmp , valid_data_len , SYS_APP_SAVE_ADDR_BASE + i*PIECE_MAX);
[*]
[*]142. remaind_data_len = remaind_data_len - valid_data_len;
[*]
[*]143. #ifdef DEBUG
[*]144. printf(".");
[*]
[*]145. #endif
[*]146. }
[*]147. #ifdef DEBUG
[*]148. printf("\r\n");
[*]
[*]149. printf("Copy Success , Wait to Check... \r\n");
[*]
[*]150. #endif
[*]151.
[*]152. if(0 == ROM_MD5_Check(update_param.rom_size , SYS_APP_SAVE_ADDR_BASE , update_param.ssl_data))
[*]
[*]153. {
[*]154. #ifdef DEBUG
[*]155. printf("New ROM Check Success , Wait to Load New Systerm \r\n");
[*]
[*]156. #endif
[*]157. flash_erase(sizeof(update_param_def), UPDATE_PARAM_SAVE_ADDR_BASE);
[*]
[*]158. mcu_restart();
[*]
[*]159. }
[*]160. else
[*]161. {
[*]162. #ifdef DEBUG
[*]163. printf("New ROM Check Faild , Update Faild , MCU Try To Update Again ,MCU Restart... \r\n");
[*]
[*]164. #endif
[*]165. mcu_restart();
[*]
[*]166. }
[*]167.
[*]168. return 0;
[*]
[*]169. }
[*]170. void APP_Process(void)
[*]
[*]171. {
[*]172. memset((uint8_t *)&update_param, 0 , sizeof(update_param_def));
[*]
[*]173. rFlashData((uint8_t *)&update_param, sizeof(update_param_def), UPDATE_PARAM_SAVE_ADDR_BASE);
[*]
[*]174. if(0xEEEE == update_param.rom_statue)
[*]
[*]175. {
[*]176. #ifdef DEBUG
[*]177. printf("Update Task ,Sys Will Load New Sys..Wait For A Moment \r\n");
[*]
[*]178. printf("Update Size [%d] \r\n",update_param.rom_size);
[*]
[*]179. #endif
[*]180. if(0 == ROM_MD5_Check(update_param.rom_size , SYS_APP_BAK_SAVE_ADDR_BASE , update_param.ssl_data))
[*]
[*]181. {
[*]
[*]182. update_new_system(update_param.rom_size);
[*]
[*]183. }
[*]
[*]184. else
[*]
[*]185. {
[*]
[*]186. #ifdef DEBUG
[*]187. printf("Check Faild , Go to Old Systerm\r\n");
[*]
[*]188. #endif
[*]189. flash_erase(sizeof(update_param_def), UPDATE_PARAM_SAVE_ADDR_BASE);
[*]
[*]190. if(((*(vu32*)(SYS_APP_SAVE_ADDR_BASE + 4)) & 0xFF000000) == 0x08000000)
[*]
[*]191. {
[*]
[*]192. #ifdef DEBUG
[*]193. printf("Sys Will Load APP.....\r\n");
[*]
[*]194. #endif
[*]195. iap_load_app(SYS_APP_SAVE_ADDR_BASE);
[*]
[*]196. }
[*]
[*]197. else
[*]
[*]198. {
[*]
[*]199. #ifdef DEBUG
[*]200. printf("Start APP Failed!\r\n");
[*]
[*]201. #endif
[*]202. }
[*]
[*]203. }
[*]
[*]204.
[*]
[*]205. }
[*]206. else
[*]207. {
[*]208. #ifdef DEBUG
[*]209. printf("No Update Task , Go To APP ....%04X\r\n",update_param.rom_statue);
[*]
[*]210. #endif
[*]211. if(((*(vu32*)(SYS_APP_SAVE_ADDR_BASE + 4)) & 0xFF000000) == 0x08000000)
[*]
[*]212. {
[*]213. #ifdef DEBUG
[*]214. printf("Sys Will Load APP.....\r\n");
[*]
[*]215. #endif
[*]216. iap_load_app(SYS_APP_SAVE_ADDR_BASE);
[*]217. }
[*]218. else
[*]219. {
[*]220. #ifdef DEBUG
[*]221. printf("Start APP Failed!\r\n");
[*]
[*]222.
[*]223. #endif
[*]224.
[*]225. }
[*]226. }
[*]227. }
复制代码
app.h1.
[*] /**
[*]2. ****************************************************
[*]3. * File Name : gpio.h
[*]
[*]4. * Description : This file contains all the functions prototypes for
[*]
[*]5. * the gpio
[*]
[*]6. ****************************************************
[*]
[*]7. ** This notice applies to any and all portions of this file
[*]
[*]8. * that are not between comment pairs USER CODE BEGIN and
[*]
[*]9. * USER CODE END. Other portions of this file, whether
[*]
[*]10. * inserted by the user or by software development tools
[*]
[*]11. * are owned by their respective copyright owners.
[*]
[*]12. *
[*]13. * COPYRIGHT(c) 2019 STMicroelectronics
[*]
[*]14. *
[*]15. * Redistribution and use in source and binary forms, with or without modification,
[*]
[*]16. * are permitted provided that the following conditions are met:
[*]
[*]17. * 1. Redistributions of source code must retain the above copyright notice,
[*]
[*]18. * this list of conditions and the following disclaimer.
[*]
[*]19. * 2. Redistributions in binary form must reproduce the above copyright notice,
[*]
[*]20. * this list of conditions and the following disclaimer in the documentation
[*]
[*]21. * and/or other materials provided with the distribution.
[*]
[*]22. * 3. Neither the name of STMicroelectronics nor the names of its contributors
[*]
[*]23. * may be used to endorse or promote products derived from this software
[*]
[*]24. * without specific prior written permission.
[*]
[*]25. *
[*]26. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
[*]
[*]27. * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
[*]
[*]28. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
[*]
[*]29. * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
[*]
[*]30. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
[*]
[*]31. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
[*]
[*]32. * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
[*]
[*]33. * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
[*]
[*]34. * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
[*]
[*]35. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
[*]
[*]36. *
[*]37. ****************************************************
[*]
[*]38. */
[*]39.
[*]40./* Define to prevent recursive inclusion -------------------------------------*/
[*]
[*]41.#ifndef __app_H
[*]42.#define __app_H
[*]43.#ifdef __cplusplus
[*]44. extern "C" {
[*]
[*]45.#endif
[*]46.
[*]47./* Includes ------------------------------------------------------------------*/
[*]
[*]48.#include "main.h"
[*]
[*]49.#include <stdio.h>
[*]
[*]50.#include <string.h>
[*]
[*]51.
[*]52.
[*]53.void APP_Process(void);
[*]
[*]54.
[*]55.#ifdef __cplusplus
[*]56.}
[*]57.#endif
[*]58.#endif /*__ pinoutConfig_H */
[*]
[*]59.
[*]60./**
[*]61. * @}
[*]62. */
[*]63.
[*]64./**
[*]65. * @}
[*]66. */
[*]67.
[*]68./**************** (C) COPYRIGHT STMicroelectronics ****END OF FILE***/
复制代码
gagent_md5驱动编写gagent_md5.c1.
[*] #include <string.h>
[*]
[*]2. #include "gagent_md5.h"
[*]
[*]3. unsigned char PADDING[] = { 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
[*]
[*]4. 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
[*]
[*]5. 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
[*]
[*]6. 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
[*]
[*]7. void GAgent_MD5Init(MD5_CTX *context)
[*]
[*]8. {
[*]9. context->count = 0;
[*]10. context->count = 0;
[*]11. context->state = 0x67452301;
[*]12. context->state = 0xEFCDAB89;
[*]13. context->state = 0x98BADCFE;
[*]14. context->state = 0x10325476;
[*]15.}
[*]16.void GAgent_MD5Update(MD5_CTX *context, unsigned char *input, unsigned int inputlen)
[*]
[*]17.{
[*]18. unsigned int i = 0, index = 0, partlen = 0;
[*]19. index = (context->count >> 3) & 0x3F;
[*]
[*]20. partlen = 64 - index;
[*]21. context->count += inputlen << 3;
[*]22. if (context->count < (inputlen << 3))
[*]
[*]23. context->count++;
[*]24. context->count += inputlen >> 29;
[*]
[*]25. if (inputlen >= partlen)
[*]26. {
[*]27. memcpy(&context->buffer, input, partlen);
[*]
[*]28. GAgent_MD5Transform(context->state, context->buffer);
[*]
[*]29. for (i = partlen; i + 64 <= inputlen; i += 64)
[*]
[*]30. GAgent_MD5Transform(context->state, &input);
[*]
[*]31. index = 0;
[*]32. }
[*]33. else
[*]34. {
[*]35. i = 0;
[*]36. }
[*]37. memcpy(&context->buffer, &input, inputlen - i);
[*]
[*]38.}
[*]39.void GAgent_MD5Final(MD5_CTX *context, unsigned char digest)
[*]
[*]40.{
[*]41. unsigned int index = 0, padlen = 0;
[*]42. unsigned char bits;
[*]43. index = (context->count >> 3) & 0x3F;
[*]
[*]44. padlen = (index < 56) ? (56 - index) : (120 - index);
[*]
[*]45. GAgent_MD5Encode(bits, context->count, 8);
[*]
[*]46. GAgent_MD5Update(context, PADDING, padlen);
[*]47. GAgent_MD5Update(context, bits, 8);
[*]48. GAgent_MD5Encode(digest, context->state, 16);
[*]
[*]49.}
[*]50.void GAgent_MD5Encode(unsigned char *output, unsigned int *input, unsigned int len)
[*]
[*]51.{
[*]52. unsigned int i = 0, j = 0;
[*]53. while (j < len)
[*]54. {
[*]55. output = input & 0xFF;
[*]56. output = (input >> 8) & 0xFF;
[*]
[*]57. output = (input >> 16) & 0xFF;
[*]
[*]58. output = (input >> 24) & 0xFF;
[*]
[*]59. i++;
[*]60. j += 4;
[*]61. }
[*]62.}
[*]63.void GAgent_MD5Decode(unsigned int *output, unsigned char *input, unsigned int len)
[*]
[*]64.{
[*]65. unsigned int i = 0, j = 0;
[*]66. while (j < len)
[*]67. {
[*]68. output = (input) |
[*]69. (input << 8) |
[*]70. (input << 16) |
[*]71. (input << 24);
[*]72. i++;
[*]73. j += 4;
[*]74. }
[*]75.}
[*]76.void GAgent_MD5Transform(unsigned int state, unsigned char block)
[*]
[*]77.{
[*]78. unsigned int a = state;
[*]79. unsigned int b = state;
[*]80. unsigned int c = state;
[*]81. unsigned int d = state;
[*]82. unsigned int x;
[*]83. GAgent_MD5Decode(x, block, 64);
[*]84. FF(a, b, c, d, x, 7, 0xd76aa478); /* 1 */
[*]85. FF(d, a, b, c, x, 12, 0xe8c7b756); /* 2 */
[*]
[*]86. FF(c, d, a, b, x, 17, 0x242070db); /* 3 */
[*]
[*]87. FF(b, c, d, a, x, 22, 0xc1bdceee); /* 4 */
[*]
[*]88. FF(a, b, c, d, x, 7, 0xf57c0faf); /* 5 */
[*]89. FF(d, a, b, c, x, 12, 0x4787c62a); /* 6 */
[*]
[*]90. FF(c, d, a, b, x, 17, 0xa8304613); /* 7 */
[*]
[*]91. FF(b, c, d, a, x, 22, 0xfd469501); /* 8 */
[*]
[*]92. FF(a, b, c, d, x, 7, 0x698098d8); /* 9 */
[*]93. FF(d, a, b, c, x, 12, 0x8b44f7af); /* 10 */
[*]
[*]94. FF(c, d, a, b, x, 17, 0xffff5bb1); /* 11 */
[*]
[*]95. FF(b, c, d, a, x, 22, 0x895cd7be); /* 12 */
[*]
[*]96. FF(a, b, c, d, x, 7, 0x6b901122); /* 13 */
[*]
[*]97. FF(d, a, b, c, x, 12, 0xfd987193); /* 14 */
[*]
[*]98. FF(c, d, a, b, x, 17, 0xa679438e); /* 15 */
[*]
[*]99. FF(b, c, d, a, x, 22, 0x49b40821); /* 16 */
[*]
[*]100.
[*]101. /* Round 2 */
[*]102. GG(a, b, c, d, x, 5, 0xf61e2562); /* 17 */
[*]103. GG(d, a, b, c, x, 9, 0xc040b340); /* 18 */
[*]104. GG(c, d, a, b, x, 14, 0x265e5a51); /* 19 */
[*]
[*]105. GG(b, c, d, a, x, 20, 0xe9b6c7aa); /* 20 */
[*]106. GG(a, b, c, d, x, 5, 0xd62f105d); /* 21 */
[*]107. GG(d, a, b, c, x, 9, 0x2441453); /* 22 */
[*]108. GG(c, d, a, b, x, 14, 0xd8a1e681); /* 23 */
[*]
[*]109. GG(b, c, d, a, x, 20, 0xe7d3fbc8); /* 24 */
[*]110. GG(a, b, c, d, x, 5, 0x21e1cde6); /* 25 */
[*]111. GG(d, a, b, c, x, 9, 0xc33707d6); /* 26 */
[*]112. GG(c, d, a, b, x, 14, 0xf4d50d87); /* 27 */
[*]113. GG(b, c, d, a, x, 20, 0x455a14ed); /* 28 */
[*]114. GG(a, b, c, d, x, 5, 0xa9e3e905); /* 29 */
[*]115. GG(d, a, b, c, x, 9, 0xfcefa3f8); /* 30 */
[*]116. GG(c, d, a, b, x, 14, 0x676f02d9); /* 31 */
[*]117. GG(b, c, d, a, x, 20, 0x8d2a4c8a); /* 32 */
[*]
[*]118.
[*]119. /* Round 3 */
[*]120. HH(a, b, c, d, x, 4, 0xfffa3942); /* 33 */
[*]121. HH(d, a, b, c, x, 11, 0x8771f681); /* 34 */
[*]122. HH(c, d, a, b, x, 16, 0x6d9d6122); /* 35 */
[*]
[*]123. HH(b, c, d, a, x, 23, 0xfde5380c); /* 36 */
[*]
[*]124. HH(a, b, c, d, x, 4, 0xa4beea44); /* 37 */
[*]125. HH(d, a, b, c, x, 11, 0x4bdecfa9); /* 38 */
[*]126. HH(c, d, a, b, x, 16, 0xf6bb4b60); /* 39 */
[*]127. HH(b, c, d, a, x, 23, 0xbebfbc70); /* 40 */
[*]
[*]128. HH(a, b, c, d, x, 4, 0x289b7ec6); /* 41 */
[*]129. HH(d, a, b, c, x, 11, 0xeaa127fa); /* 42 */
[*]130. HH(c, d, a, b, x, 16, 0xd4ef3085); /* 43 */
[*]131. HH(b, c, d, a, x, 23, 0x4881d05); /* 44 */
[*]132. HH(a, b, c, d, x, 4, 0xd9d4d039); /* 45 */
[*]133. HH(d, a, b, c, x, 11, 0xe6db99e5); /* 46 */
[*]
[*]134. HH(c, d, a, b, x, 16, 0x1fa27cf8); /* 47 */
[*]
[*]135. HH(b, c, d, a, x, 23, 0xc4ac5665); /* 48 */
[*]136.
[*]137. /* Round 4 */
[*]138. II(a, b, c, d, x, 6, 0xf4292244); /* 49 */
[*]139. II(d, a, b, c, x, 10, 0x432aff97); /* 50 */
[*]140. II(c, d, a, b, x, 15, 0xab9423a7); /* 51 */
[*]
[*]141. II(b, c, d, a, x, 21, 0xfc93a039); /* 52 */
[*]142. II(a, b, c, d, x, 6, 0x655b59c3); /* 53 */
[*]143. II(d, a, b, c, x, 10, 0x8f0ccc92); /* 54 */
[*]144. II(c, d, a, b, x, 15, 0xffeff47d); /* 55 */
[*]
[*]145. II(b, c, d, a, x, 21, 0x85845dd1); /* 56 */
[*]146. II(a, b, c, d, x, 6, 0x6fa87e4f); /* 57 */
[*]147. II(d, a, b, c, x, 10, 0xfe2ce6e0); /* 58 */
[*]
[*]148. II(c, d, a, b, x, 15, 0xa3014314); /* 59 */
[*]149. II(b, c, d, a, x, 21, 0x4e0811a1); /* 60 */
[*]
[*]150. II(a, b, c, d, x, 6, 0xf7537e82); /* 61 */
[*]151. II(d, a, b, c, x, 10, 0xbd3af235); /* 62 */
[*]
[*]152. II(c, d, a, b, x, 15, 0x2ad7d2bb); /* 63 */
[*]153. II(b, c, d, a, x, 21, 0xeb86d391); /* 64 */
[*]154. state += a;
[*]155. state += b;
[*]156. state += c;
[*]157. state += d;
[*]158. }
复制代码
gagent_md5.h1.
[*]#ifndef _GAGENT_MD5_H
[*]
[*]2. #define _GAGENT_MD5_H
[*]
[*]3.
[*]4. typedef struct
[*]5. {
[*]6. unsigned int count;
[*]7. unsigned int state;
[*]8. unsigned char buffer;
[*]9. } MD5_CTX;
[*]10.#define F(x,y,z) ((x & y) | (~x & z))
[*]
[*]11.#define G(x,y,z) ((x & z) | (y & ~z))
[*]
[*]12.#define H(x,y,z) (x^y^z)
[*]13.#define I(x,y,z) (y ^ (x | ~z))
[*]
[*]14.#define ROTATE_LEFT(x,n) ((x << n) | (x >> (32-n)))
[*]
[*]15.#define FF(a,b,c,d,x,s,ac) \
[*]
[*]16.{ \
[*]17. a += F(b,c,d) + x + ac; \
[*]18. a = ROTATE_LEFT(a,s); \
[*]19. a += b; \
[*]20.}
[*]21.#define GG(a,b,c,d,x,s,ac) \
[*]
[*]22.{ \
[*]23. a += G(b,c,d) + x + ac; \
[*]24. a = ROTATE_LEFT(a,s); \
[*]25. a += b; \
[*]26.}
[*]27.#define HH(a,b,c,d,x,s,ac) \
[*]
[*]28.{ \
[*]29. a += H(b,c,d) + x + ac; \
[*]30. a = ROTATE_LEFT(a,s); \
[*]31. a += b; \
[*]32.}
[*]33.#define II(a,b,c,d,x,s,ac) \
[*]
[*]34.{ \
[*]35. a += I(b,c,d) + x + ac; \
[*]36. a = ROTATE_LEFT(a,s); \
[*]37. a += b; \
[*]38.}
[*]39.void GAgent_MD5Init(MD5_CTX *context);
[*]
[*]40.void GAgent_MD5Update(MD5_CTX *context, unsigned char *input, unsigned int inputlen);
[*]
[*]41.void GAgent_MD5Final(MD5_CTX *context, unsigned char digest);
[*]
[*]42.void GAgent_MD5Transform(unsigned int state, unsigned char block);
[*]
[*]43.void GAgent_MD5Encode(unsigned char *output, unsigned int *input, unsigned int len);
[*]
[*]44.void GAgent_MD5Decode(unsigned int *output, unsigned char *input, unsigned int len);
[*]
[*]45.#endif
[*]
复制代码
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