- 添加AES128加密解密功能支持安全固件传输 - 实现基于随机数握手的安全会话密钥协商机制 - 集成CRC32带密钥校验确保数据完整性 - 重构OTA状态机支持握手、数据传输和验证流程 - 添加CANFD数据长度规范处理和安全跳转逻辑 - 移除调试打印语句优化性能 refactor(can): 优化CANFD发送和OTA确认处理逻辑 - 重构CANFD_AsyncSend函数支持规范数据长度 - 重命名sendACK为sendDATA_ACK并添加重载函数 - 修复数据长度处理和缓冲区填充逻辑 - 优化CAN消息发送的数据复制和验证流程 - 移除未使用的联合体类型定义 chore(project): 添加AES加密模块和系统初始化配置 - 在项目配置中添加AES128加密解密文件 - 在main.cpp中初始化CRC外设模块 - 添加安全十六进制打印调试函数 - 集成AES加密库到OTA处理流程中 - 优化系统时钟初始化配置
153 lines
3.9 KiB
C++
153 lines
3.9 KiB
C++
#include "main.h"
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#include "Can.h"
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#include "aes128.h"
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#include "initial.h"
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#include "sys/systick.h"
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#include <cstdio>
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extern CAN_transmiter CAN0_transmiter; // CAN初始化
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BootloaderSystem sys;
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extern OTAHandler ota;
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void BootloaderSystem::initHardware() {
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systick_config(); // 系统时钟初始化
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USART0_init(); // 调试串口初始化
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rcu_periph_clock_enable(RCU_CRC); // 使能CRC外设时钟
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crc_deinit(); // 初始化CRC模块
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CAN0_transmiter.init();
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}
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void BootloaderSystem::run() {
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// 检查是否触发OTA模式
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if (1) {
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// OTA模式
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while (1) {
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CAN0_transmiter.communication_check();
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ota.process();
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}
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} else {
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// 正常模式:跳转到APP
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ota.jumpToApplication();
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}
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}
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// 发送单个字节到串口 (用于调试)
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void uart_send_byte(uint8_t data) {
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// 实际的串口发送代码
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while (RESET == usart_flag_get(USART0, USART_FLAG_TBE))
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;
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usart_data_transmit(USART0, data);
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}
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// 以十六进制格式打印数据
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// 安全的十六进制打印函数,不使用sprintf,不使用大缓冲区
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void safe_print_hex(const char *prefix, const uint8_t *data, size_t length) {
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// 1. 先打印前缀
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const char *p = prefix;
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while (*p) {
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while (RESET == usart_flag_get(USART0, USART_FLAG_TBE))
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;
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usart_data_transmit(USART0, *p++);
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}
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while (RESET == usart_flag_get(USART0, USART_FLAG_TBE))
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;
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usart_data_transmit(USART0, ':');
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while (RESET == usart_flag_get(USART0, USART_FLAG_TBE))
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;
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usart_data_transmit(USART0, ' ');
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// 2. 逐字节打印数据,每16字节换行
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for (size_t i = 0; i < length; i++) {
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uint8_t byte = data[i];
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// 打印高4位
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uint8_t high = (byte >> 4) & 0x0F;
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char high_char = (high < 10) ? ('0' + high) : ('A' + high - 10);
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while (RESET == usart_flag_get(USART0, USART_FLAG_TBE))
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;
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usart_data_transmit(USART0, high_char);
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// 打印低4位
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uint8_t low = byte & 0x0F;
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char low_char = (low < 10) ? ('0' + low) : ('A' + low - 10);
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while (RESET == usart_flag_get(USART0, USART_FLAG_TBE))
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;
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usart_data_transmit(USART0, low_char);
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// 打印空格
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while (RESET == usart_flag_get(USART0, USART_FLAG_TBE))
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;
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usart_data_transmit(USART0, ' ');
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// 每16字节换行
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if ((i + 1) % 16 == 0 && i < length - 1) {
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// 换行
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while (RESET == usart_flag_get(USART0, USART_FLAG_TBE))
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;
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usart_data_transmit(USART0, '\r');
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while (RESET == usart_flag_get(USART0, USART_FLAG_TBE))
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;
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usart_data_transmit(USART0, '\n');
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// 缩进(4个空格)
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for (int j = 0; j < 4; j++) {
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while (RESET == usart_flag_get(USART0, USART_FLAG_TBE))
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;
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usart_data_transmit(USART0, ' ');
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}
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}
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}
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// 3. 打印换行
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while (RESET == usart_flag_get(USART0, USART_FLAG_TBE))
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;
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usart_data_transmit(USART0, '\r');
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while (RESET == usart_flag_get(USART0, USART_FLAG_TBE))
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;
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usart_data_transmit(USART0, '\n');
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}
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void test_decrypt() {
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printf("AES Encryption Verification Starting...\r\n");
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// 定义48字节测试数据
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uint8_t plaintext[48] = {
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
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0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
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0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22, 0x23,
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0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F};
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// 定义128位密钥 (16字节)
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uint8_t key[16] = {0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,
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0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c};
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// 创建AES上下文
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aes128_context ctx;
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// 设置密钥
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aes128_set_key(&ctx, key);
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// 打印原始数据
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safe_print_hex("Original Data", plaintext, 48);
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uint8_t ciphertext[48];
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uint8_t decrypted[48];
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// 加密
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aes128_ecb_encrypt_48bytes(&ctx, plaintext, ciphertext);
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safe_print_hex("Encrypted Data", ciphertext, 48);
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// 解密
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aes128_ecb_decrypt_48bytes(&ctx, ciphertext, decrypted);
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safe_print_hex("Decrypted Data", decrypted, 48);
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}
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int main(void) {
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sys.initHardware();
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// test_decrypt();
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sys.run();
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while (1)
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; // 不应该执行到这里
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} |