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docs(readme): 更新项目文档并移除过时文件

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- 添加详细的项目介绍，包括硬件平台、功能模块和目录结构
- 移除旧的 docs/README.md 和 docs/tasks.md 文件
- 更新 .gitignore 添加 .cache/ 目录
- 调整 CMakeLists.txt 依赖项顺序，添加 mbedtls
- 简化头文件包含，移除不必要的 esp_log.h 和 esp_netif_types.h 引用
This commit is contained in:
小龙虾
2026-04-27 03:00:48 +08:00
parent 7bb28cee1e
commit df27ef3a98
9 changed files with 129 additions and 697 deletions
Download Patch File Download Diff File Expand all files Collapse all files
main/CMakeLists.txt
+1
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@@ -30,4 +30,5 @@ idf_component_register(
esp_blockdev
nvs_flash
freertos
mbedtls
)
main/core/main.cpp
-1
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@@ -5,7 +5,6 @@
#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_log.h"
#include "esp_chip_info.h"
#include "monitor/health_monitor.h"
main/monitor/debug_log.cpp
-2
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@@ -8,11 +8,9 @@
#include <sys/socket.h>
#include <netdb.h>
#include <arpa/inet.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_log.h"
#include "esp_err.h"
#include "esp_netif_types.h"
#include "debug_log.h"
main/transport/protocol.cpp
+71 -345
View File
@@ -1,349 +1,25 @@
/*
* protocol.c - 协议层实现
* T2.1, T2.2, T1.3
* ESP-IDF 6.0 适配版本 - 使用软件 AES 实现 + 硬件 RNG
* ESP-IDF 6.0 适配版本 - 使用硬件 AES-128-CBC + 硬件 RNG
*
* 加密实现使用 ESP32-C3 硬件 AES 加速器（通过 mbedtls port）
*/
#include <string.h>
#include <stdio.h>
#include "esp_random.h"
#include "aes/esp_aes.h"
#include "app_config.h"
#include "protocol.h"
#include "monitor/debug_log.h"
static bool s_protocol_initialized = false;
// ========== 软件 AES-128 实现 ==========
// AES S-Box
static const uint8_t sbox[256] = {
0x63,0x7c,0x77,0x7b,0xf2,0x6b,0x6f,0xc5,0x30,0x01,0x67,0x2b,0xfe,0xd7,0xab,0x76,
0xca,0x82,0xc9,0x7d,0xfa,0x59,0x47,0xf0,0xad,0xd4,0xa2,0xaf,0x9c,0xa4,0x72,0xc0,
0xb7,0xfd,0x93,0x26,0x36,0x3f,0xf7,0xcc,0x34,0xa5,0xe5,0xf1,0x71,0xd8,0x31,0x15,
0x04,0xc7,0x23,0xc3,0x18,0x96,0x05,0x9a,0x07,0x12,0x80,0xe2,0xeb,0x27,0xb2,0x75,
0x09,0x83,0x2c,0x1a,0x1b,0x6e,0x5a,0xa0,0x52,0x3b,0xd6,0xb3,0x29,0xe3,0x2f,0x84,
0x53,0xd1,0x00,0xed,0x20,0xfc,0xb1,0x5b,0x6a,0xcb,0xbe,0x39,0x4a,0x4c,0x58,0xcf,
0xd0,0xef,0xaa,0xfb,0x43,0x4d,0x33,0x85,0x45,0xf9,0x02,0x7f,0x50,0x3c,0x9f,0xa8,
0x51,0xa3,0x40,0x8f,0x92,0x9d,0x38,0xf5,0xbc,0xb6,0xda,0x21,0x10,0xff,0xf3,0xd2,
0xcd,0x0c,0x13,0xec,0x5f,0x97,0x44,0x17,0xc4,0xa7,0x7e,0x3d,0x64,0x5d,0x19,0x73,
0x60,0x81,0x4f,0xdc,0x22,0x2a,0x90,0x88,0x46,0xee,0xb8,0x14,0xde,0x5e,0x0b,0xdb,
0xe0,0x32,0x3a,0x0a,0x49,0x06,0x24,0x5c,0xc2,0xd3,0xac,0x62,0x91,0x95,0xe4,0x79,
0xe7,0xc8,0x37,0x6d,0x8d,0xd5,0x4e,0xa9,0x6c,0x56,0xf4,0xea,0x65,0x7a,0xae,0x08,
0xba,0x78,0x25,0x2e,0x1c,0xa6,0xb4,0xc6,0xe8,0xdd,0x74,0x1f,0x4b,0xbd,0x8b,0x8a,
0x70,0x3e,0xb5,0x66,0x48,0x03,0xf6,0x0e,0x61,0x35,0x57,0xb9,0x86,0xc1,0x1d,0x9e,
0xe1,0xf8,0x98,0x11,0x69,0xd9,0x8e,0x94,0x9b,0x1e,0x87,0xe9,0xce,0x55,0x28,0xdf,
0x8c,0xa1,0x89,0x0d,0xbf,0xe6,0x42,0x68,0x41,0x99,0x2d,0x0f,0xb0,0x54,0xbb,0x16
};
// AES 逆 S-Box
static const uint8_t rsbox[256] = {
0x52,0x09,0x6a,0xd5,0x30,0x36,0xa5,0x38,0xbf,0x40,0xa3,0x9e,0x81,0xf3,0xd7,0xfb,
0x7c,0xe3,0x39,0x82,0x9b,0x2f,0xff,0x87,0x34,0x8e,0x43,0x44,0xc4,0xde,0xe9,0xcb,
0x54,0x7b,0x94,0x32,0xa6,0xc2,0x23,0x3d,0xee,0x4c,0x95,0x0b,0x42,0xfa,0xc3,0x4e,
0x08,0x2e,0xa1,0x66,0x28,0xd9,0x24,0xb2,0x76,0x5b,0xa2,0x49,0x6d,0x8b,0xd1,0x25,
0x72,0xf8,0xf6,0x64,0x86,0x68,0x98,0x16,0xd4,0xa4,0x5c,0xcc,0x5d,0x65,0xb6,0x92,
0x6c,0x70,0x48,0x50,0xfd,0xed,0xb9,0xda,0x5e,0x15,0x46,0x57,0xa7,0x8d,0x9d,0x84,
0x90,0xd8,0xab,0x00,0x8c,0xbc,0xd3,0x0a,0xf7,0xe4,0x58,0x05,0xb8,0xb3,0x45,0x06,
0xd0,0x2c,0x1e,0x8f,0xca,0x3f,0x0f,0x02,0xc1,0xaf,0xbd,0x03,0x01,0x13,0x8a,0x6b,
0x3a,0x91,0x11,0x41,0x4f,0x67,0xdc,0xea,0x97,0xf2,0xcf,0xce,0xf0,0xb4,0xe6,0x73,
0x96,0xac,0x74,0x22,0xe7,0xad,0x35,0x85,0xe2,0xf9,0x37,0xe8,0x1c,0x75,0xdf,0x6e,
0x47,0xf1,0x1a,0x71,0x1d,0x29,0xc5,0x89,0x6f,0xb7,0x62,0x0e,0xaa,0x18,0xbe,0x1b,
0xfc,0x56,0x3e,0x4b,0xc6,0xd2,0x79,0x20,0x9a,0xdb,0xc0,0xfe,0x78,0xcd,0x5a,0xf4,
0x1f,0xdd,0xa8,0x33,0x88,0x07,0xc7,0x31,0xb1,0x12,0x10,0x59,0x27,0x80,0xec,0x5f,
0x60,0x51,0x7f,0xa9,0x19,0xb5,0x4a,0x0d,0x2d,0xe5,0x7a,0x9f,0x93,0xc9,0x9c,0xef,
0xa0,0xe0,0x3b,0x4d,0xae,0x2a,0xf5,0xb0,0xc8,0xeb,0xbb,0x3c,0x83,0x53,0x99,0x61,
0x17,0x2b,0x04,0x7e,0xba,0x77,0xd6,0x26,0xe1,0x69,0x14,0x63,0x55,0x21,0x0c,0x7d
};
// AES Rcon
static const uint8_t Rcon[11] = {
0x8d,0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80,0x1b,0x36
};
// AES 状态操作
#define AES_BLOCK_SIZE 16
typedef struct {
uint8_t round_key[176]; // 10 rounds * 16 bytes + initial key
} aes128_context_t;
// GF(2^8) 乘法
static uint8_t gmul(uint8_t a, uint8_t b)
{
uint8_t p = 0, hbit;
for (int i = 0; i < 8; i++) {
if (b & 1) {
p ^= a;
}
hbit = a & 0x80;
a <<= 1;
if (hbit) {
a ^= 0x1b; // 模不可约多项式 x^8 + x^4 + x^3 + x + 1
}
b >>= 1;
}
return p;
}
// 密钥扩展
static void aes128_key_expansion(const uint8_t *key, aes128_context_t *ctx)
{
uint8_t temp[4];
memcpy(ctx->round_key, key, 16);
for (int i = 4; i < 44; i++) {
for (int j = 0; j < 4; j++) {
temp[j] = ctx->round_key[(i - 1) * 4 + j];
}
if (i % 4 == 0) {
// RotWord
uint8_t t = temp[0];
temp[0] = temp[1];
temp[1] = temp[2];
temp[2] = temp[3];
temp[3] = t;
// SubWord
temp[0] = sbox[temp[0]];
temp[1] = sbox[temp[1]];
temp[2] = sbox[temp[2]];
temp[3] = sbox[temp[3]];
temp[0] ^= Rcon[i / 4];
}
for (int j = 0; j < 4; j++) {
ctx->round_key[i * 4 + j] = ctx->round_key[(i - 4) * 4 + j] ^ temp[j];
}
}
}
// 字节替换
static void sub_bytes(uint8_t *state)
{
for (int i = 0; i < 16; i++) {
state[i] = sbox[state[i]];
}
}
// 逆字节替换
static void inv_sub_bytes(uint8_t *state)
{
for (int i = 0; i < 16; i++) {
state[i] = rsbox[state[i]];
}
}
// 行移位
static void shift_rows(uint8_t *state)
{
uint8_t temp;
// 第1行左移1位
temp = state[1];
state[1] = state[5];
state[5] = state[9];
state[9] = state[13];
state[13] = temp;
// 第2行左移2位
temp = state[2];
state[2] = state[10];
state[10] = temp;
temp = state[6];
state[6] = state[14];
state[14] = temp;
// 第3行左移3位
temp = state[15];
state[15] = state[11];
state[11] = state[7];
state[7] = state[3];
state[3] = temp;
}
// 逆行移位
static void inv_shift_rows(uint8_t *state)
{
uint8_t temp;
// 第1行右移1位
temp = state[13];
state[13] = state[9];
state[9] = state[5];
state[5] = state[1];
state[1] = temp;
// 第2行右移2位
temp = state[2];
state[2] = state[10];
state[10] = temp;
temp = state[6];
state[6] = state[14];
state[14] = temp;
// 第3行右移3位
temp = state[3];
state[3] = state[7];
state[7] = state[11];
state[11] = state[15];
state[15] = temp;
}
// 列混合
static void mix_columns(uint8_t *state)
{
uint8_t temp[16];
memcpy(temp, state, 16);
for (int i = 0; i < 4; i++) {
int c = i * 4;
state[c] = gmul(2, temp[c]) ^ gmul(3, temp[c + 1]) ^ temp[c + 2] ^ temp[c + 3];
state[c + 1] = temp[c] ^ gmul(2, temp[c + 1]) ^ gmul(3, temp[c + 2]) ^ temp[c + 3];
state[c + 2] = temp[c] ^ temp[c + 1] ^ gmul(2, temp[c + 2]) ^ gmul(3, temp[c + 3]);
state[c + 3] = gmul(3, temp[c]) ^ temp[c + 1] ^ temp[c + 2] ^ gmul(2, temp[c + 3]);
}
}
// 逆列混合
static void inv_mix_columns(uint8_t *state)
{
uint8_t temp[16];
memcpy(temp, state, 16);
for (int i = 0; i < 4; i++) {
int c = i * 4;
state[c] = gmul(14, temp[c]) ^ gmul(11, temp[c + 1]) ^ gmul(13, temp[c + 2]) ^ gmul(9, temp[c + 3]);
state[c + 1] = gmul(9, temp[c]) ^ gmul(14, temp[c + 1]) ^ gmul(11, temp[c + 2]) ^ gmul(13, temp[c + 3]);
state[c + 2] = gmul(13, temp[c]) ^ gmul(9, temp[c + 1]) ^ gmul(14, temp[c + 2]) ^ gmul(11, temp[c + 3]);
state[c + 3] = gmul(11, temp[c]) ^ gmul(13, temp[c + 1]) ^ gmul(9, temp[c + 2]) ^ gmul(14, temp[c + 3]);
}
}
// 轮密钥加
static void add_round_key(uint8_t *state, const uint8_t *round_key)
{
for (int i = 0; i < 16; i++) {
state[i] ^= round_key[i];
}
}
// AES-128 加密单个块
static void aes128_encrypt_block(const uint8_t *input, uint8_t *output, const aes128_context_t *ctx)
{
uint8_t state[16];
// 复制输入到状态（列优先顺序）
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
state[i * 4 + j] = input[j * 4 + i];
}
}
// 初始轮密钥加
add_round_key(state, ctx->round_key);
// 9轮加密
for (int round = 1; round < 10; round++) {
sub_bytes(state);
shift_rows(state);
mix_columns(state);
add_round_key(state, ctx->round_key + round * 16);
}
// 最后一轮（无列混合）
sub_bytes(state);
shift_rows(state);
add_round_key(state, ctx->round_key + 10 * 16);
// 复制状态到输出（列优先顺序）
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
output[j * 4 + i] = state[i * 4 + j];
}
}
}
// AES-128 解密单个块
static void aes128_decrypt_block(const uint8_t *input, uint8_t *output, const aes128_context_t *ctx)
{
uint8_t state[16];
// 复制输入到状态（列优先顺序）
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
state[i * 4 + j] = input[j * 4 + i];
}
}
// 初始轮密钥加
add_round_key(state, ctx->round_key + 10 * 16);
// 9轮解密
for (int round = 9; round >= 1; round--) {
inv_shift_rows(state);
inv_sub_bytes(state);
add_round_key(state, ctx->round_key + round * 16);
inv_mix_columns(state);
}
// 最后一轮（无逆列混合）
inv_shift_rows(state);
inv_sub_bytes(state);
add_round_key(state, ctx->round_key);
// 复制状态到输出（列优先顺序）
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
output[j * 4 + i] = state[i * 4 + j];
}
}
}
// CBC 模式加密
static void aes128_cbc_encrypt(const uint8_t *input, uint8_t *output, size_t length,
const uint8_t *iv, const aes128_context_t *ctx)
{
uint8_t prev[16];
memcpy(prev, iv, 16);
for (size_t i = 0; i < length; i += 16) {
uint8_t block[16];
memcpy(block, input + i, 16);
// XOR with previous ciphertext (or IV for first block)
for (int j = 0; j < 16; j++) {
block[j] ^= prev[j];
}
aes128_encrypt_block(block, output + i, ctx);
memcpy(prev, output + i, 16);
}
}
// CBC 模式解密
static void aes128_cbc_decrypt(const uint8_t *input, uint8_t *output, size_t length,
const uint8_t *iv, const aes128_context_t *ctx)
{
uint8_t prev[16];
memcpy(prev, iv, 16);
for (size_t i = 0; i < length; i += 16) {
aes128_decrypt_block(input + i, output + i, ctx);
// XOR with previous ciphertext (or IV for first block)
for (int j = 0; j < 16; j++) {
output[i + j] ^= prev[j];
}
memcpy(prev, input + i, 16);
}
}
void protocol_init(void)
{
if (s_protocol_initialized) return;
DEBUG_INFO("PROT", "初始化协议层（CRC16、软件AES）...");
DEBUG_INFO("PROT", "初始化协议层（CRC16、硬件AES-CBC）...");
s_protocol_initialized = true;
DEBUG_INFO("PROT", "协议层就绪");
@@ -442,44 +118,94 @@ int frame_parse(const uint8_t *frame, size_t frame_len,
return 0;
}
// AES-128 CBC 加密
// 注意: 函数名带 protocol_ 前缀以避免与 ESP-IDF wpa_supplicant 组件冲突
// AES-128 CBC 加密（使用 ESP32-C3 硬件 AES）
int protocol_aes_encrypt(const uint8_t *plaintext, size_t len,
const uint8_t *key, const uint8_t *iv,
uint8_t *ciphertext_out)
{
if (!plaintext || !key || !iv || !ciphertext_out) {
return -1;
}
// PKCS#7 填充
size_t padded_len = ((len + 15) / 16) * 16;
uint8_t padded[256];
memset(padded, 0, sizeof(padded));
memcpy(padded, plaintext, len);
uint8_t pad = (uint8_t)(16 - (len % 16));
if (pad == 0) pad = 16;
memset(&padded[len], pad, pad);
aes128_context_t ctx;
aes128_key_expansion(key, &ctx);
aes128_cbc_encrypt(padded, ciphertext_out, padded_len, iv, &ctx);
// 硬件 AES-CBC 加密（使用 ESP32-C3 硬件 AES 加速器）
esp_aes_context aes_ctx;
esp_aes_init(&aes_ctx);
return padded_len;
int ret = esp_aes_setkey(&aes_ctx, key, 128);
if (ret != 0) {
DEBUG_ERR("PROT", "esp_aes_setkey 失败: %d", ret);
esp_aes_free(&aes_ctx);
return -1;
}
uint8_t iv_copy[16];
memcpy(iv_copy, iv, 16);
ret = esp_aes_crypt_cbc(&aes_ctx, ESP_AES_ENCRYPT, padded_len, iv_copy, padded, ciphertext_out);
esp_aes_free(&aes_ctx);
if (ret == 0) {
return padded_len;
} else {
DEBUG_ERR("PROT", "esp_aes_crypt_cbc 加密失败: %d", ret);
return -1;
}
}
// AES-128 CBC 解密
// 注意: 函数名带 protocol_ 前缀以避免与 ESP-IDF wpa_supplicant 组件冲突
// AES-128 CBC 解密（使用 ESP32-C3 硬件 AES）
int protocol_aes_decrypt(const uint8_t *ciphertext, size_t len,
const uint8_t *key, const uint8_t *iv,
uint8_t *plaintext_out)
{
if (len % 16 != 0) {
DEBUG_ERR("PROT", "Ciphertext 长度不是 16 的倍数: %zu", len);
if (!ciphertext || !key || !iv || !plaintext_out) {
return -1;
}
aes128_context_t ctx;
aes128_key_expansion(key, &ctx);
aes128_cbc_decrypt(ciphertext, plaintext_out, len, iv, &ctx);
if (len % 16 != 0 || len == 0) {
DEBUG_ERR("PROT", "Ciphertext 长度无效: %zu", len);
return -1;
}
// 硬件 AES-CBC 解密（使用 ESP32-C3 硬件 AES 加速器）
esp_aes_context aes_ctx;
esp_aes_init(&aes_ctx);
int ret = esp_aes_setkey(&aes_ctx, key, 128);
if (ret != 0) {
DEBUG_ERR("PROT", "esp_aes_setkey 失败: %d", ret);
esp_aes_free(&aes_ctx);
return -1;
}
uint8_t iv_copy[16];
memcpy(iv_copy, iv, 16);
ret = esp_aes_crypt_cbc(&aes_ctx, ESP_AES_DECRYPT, len, iv_copy, ciphertext, plaintext_out);
esp_aes_free(&aes_ctx);
if (ret != 0) {
DEBUG_ERR("PROT", "esp_aes_crypt_cbc 解密失败: %d", ret);
return -1;
}
// 移除 PKCS#7 填充
uint8_t pad = plaintext_out[len - 1];
if (pad > 16) return -1;
if (pad > 16) {
DEBUG_ERR("PROT", "无效填充: %d", pad);
return -1;
}
return len - pad;
}
main/transport/protocol.h
+1 -1
View File
@@ -1,7 +1,7 @@
/*
* protocol.h - 帧格式、CRC16、AES 加密解密
* T2.2, T1.3
* ESP-IDF 6.0 适配版本 - 使用软件 AES 实现 + 硬件 RNG
* ESP-IDF 6.0 适配版本 - 使用硬件 AES-128-CBC + 硬件 RNG
*/
#ifndef PROTOCOL_H
#define PROTOCOL_H