Files
ESP32_COMM/main/relay/ota_relay.h
T
小龙虾 2caf10b9de feat(ota): 添加OTA回滚保护和固件完整性校验功能
- 启用CONFIG_BOOTLOADER_APP_ROLLBACK_ENABLE和CONFIG_APP_ROLLBACK_ENABLE配置选项
- 在main.cpp中添加esp_ota_mark_app_valid_cancel_rollback()调用,防止意外回滚
- 实现SHA-256固件完整性校验,包括计算、存储和验证功能
- 添加ota_mutex.h头文件用于ESP32 OTA全局互斥锁管理

feat(health_monitor): 实现线程安全的健康状态管理

- 将HealthMonitor类的健康状态改为私有成员并通过mutex保护
- 添加getState()和setState()方法提供线程安全的状态访问
- 修复多任务并发访问健康状态时的竞争条件问题

feat(ota_relay): 增强中继模块的线程安全性和可靠性

- 为OtaRelay类添加静态mutex保护状态变量访问
- 实现StateLockGuard RAII锁管理器确保异常安全
- 添加全局超时机制防止OTA过程无限等待
- 改进flash写入逻辑支持非4字节对齐数据处理

refactor(app_config): 更新版本信息和配置常量

- 更新BUILD_TIME至最新编译时间
- 更新GIT_HASH至最新提交
- 添加BLE_OTA_CTRL_VERIFY_SHA256命令常量定义
2026-06-14 17:10:24 +08:00

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/*
* ota_relay.h - OTA 中继核心状态机
* T2.3, T3.1 - T3.7
*
* OtaRelay 类封装 OTA 中继状态机、Flash 存储和元数据管理。
*/
#ifndef OTA_RELAY_H
#define OTA_RELAY_H
#include <stdint.h>
#include "freertos/FreeRTOS.h"
#include "freertos/queue.h"
#include "freertos/semphr.h"
#include "transport/protocol.h"
#include "transport/spi_master.h"
#include "esp_partition.h"
#define OTA_META_NVS_NAMESPACE "ota_meta"
#define OTA_META_NVS_KEY "meta"
typedef struct {
uint32_t total_size;
uint32_t stored_size;
uint32_t last_seq;
uint32_t chunk_count;
uint8_t checksum[32];
} ota_meta_t;
typedef enum {
RELAY_IDLE = 0,
RELAY_HANDSHAKE_IDLE,
RELAY_HANDSHAKE_SENT,
RELAY_CHALLENGE_SENT,
RELAY_CHALLENGE_RESPOND,
RELAY_SESSION_KEY_SENT,
RELAY_AUTH_COMPLETE,
RELAY_SIZE_SENT,
RELAY_SIZE_ACK,
RELAY_RECEIVING,
RELAY_RELAY_ACTIVE,
RELAY_PACKET_SENT,
RELAY_PACKET_ACK_OK,
RELAY_PACKET_ACK_RETRY,
RELAY_RECEIVE_DONE,
RELAY_TRANSFER_DONE,
RELAY_FINISH_SENT,
RELAY_DONE,
RELAY_APP_VERIFY,
RELAY_ERROR = 0xFF
} relay_state_t;
typedef enum {
OTA_RESULT_OK = 0,
OTA_RESULT_ERR_TIMEOUT = -1,
OTA_RESULT_ERR_CRC = -2,
OTA_RESULT_ERR_AUTH = -3,
OTA_RESULT_ERR_STORAGE = -4,
OTA_RESULT_ERR_GD32 = -5,
OTA_RESULT_ERR_HEALTH = -6,
OTA_RESULT_ERR_USER_ABORT = -7
} ota_result_t;
class OtaRelay {
public:
static OtaRelay& instance();
static void taskEntry(void *pvParameters);
ota_result_t startHandshake();
ota_result_t forwardFirmware();
/* ---- 线程安全的状态访问接口 ----
* OTA 任务写、HTTP 任务读,通过 mutex 保证一致性。
* 状态机内部(OTA 任务)可直接写 static 成员,
* 跨任务读/写必须走这些 API。
*/
static relay_state_t getState();
static uint32_t getRelaySeq();
static uint32_t getRelayTotalPackets();
static bool getGd32AppAlive();
static void getGd32Version(gd32_version_t *out);
static void setState(relay_state_t s);
static void setRelaySeq(uint32_t seq);
static void setRelayTotalPackets(uint32_t total);
static void setGd32AppAlive(bool alive);
static void setGd32Version(const gd32_version_t &ver);
void reset();
static esp_err_t flashWriteChunk(uint32_t offset, const uint8_t *data, size_t len);
static esp_err_t flashReadChunk(uint32_t offset, uint8_t *data, size_t len);
static esp_err_t metaLoad(ota_meta_t *meta);
static esp_err_t metaSave(const ota_meta_t *meta);
static esp_err_t metaUpdate(uint32_t stored_size, uint32_t last_seq);
static esp_err_t metaClear();
static esp_err_t computeFlashSha256(uint8_t out_sha256[32]);
static esp_err_t metaFinalizeChecksum();
static esp_err_t metaVerifyChecksum();
// 公开状态(状态机内部直接访问;跨任务请用 getter/setter)
static relay_state_t relayState;
static uint32_t relaySeq;
static uint32_t relayTotalPackets;
static volatile bool gd32AppAlive;
static gd32_version_t gd32Version;
static QueueHandle_t dispatchQueue;
static QueueHandle_t resultQueue;
// 线程安全锁
static SemaphoreHandle_t s_stateMutex;
static void initMutex();
static constexpr TickType_t kLockTimeout = pdMS_TO_TICKS(50);
class StateLockGuard {
public:
explicit StateLockGuard(TickType_t timeout = kLockTimeout) {
m_locked = (s_stateMutex && xSemaphoreTake(s_stateMutex, timeout) == pdTRUE);
}
~StateLockGuard() {
if (m_locked && s_stateMutex) { xSemaphoreGive(s_stateMutex); }
}
bool isLocked() const { return m_locked; }
StateLockGuard(const StateLockGuard&) = delete;
StateLockGuard& operator=(const StateLockGuard&) = delete;
private:
bool m_locked = false;
};
// 实例状态(public,供状态机方法访问)
const esp_partition_t *m_gd32Partition = NULL;
session_ctx_t m_sessionCtx;
uint8_t m_nonceServer[16] = {0};
uint8_t m_kSession[16] = {0};
uint8_t m_gd32UidRuntime[12] = {0};
static constexpr size_t GD32_UID_LEN = 12;
static constexpr size_t GD32_CHALLENGE_RESPONSE_LEN = 36;
esp_err_t requestGd32AppEnterBootloader();
ota_result_t probeBootHandshake();
ota_result_t sendHandshakeReq();
ota_result_t sendNonceAndAuthenticate();
ota_result_t sendFirmwareSize(uint32_t size);
ota_result_t relayPacketsFromFlash(TickType_t deadline_tick = 0);
ota_result_t finishOta();
static int aes128EcbEncryptBlockLocal(const uint8_t *key, const uint8_t *in, uint8_t *out);
static void logRespPayload(const char *stage, uint8_t resp_type, const uint8_t *payload, size_t len);
esp_err_t waitUntilNotWait(const char *stage, uint8_t *resp_type,
uint8_t *resp_payload, size_t resp_max,
size_t *resp_len, uint32_t timeout_ms,
uint32_t max_wait_rounds);
static bool isStructuredAckWithSeq(const uint8_t *payload, size_t len, uint32_t expected_seq);
static bool parseStructuredError(const uint8_t *payload, size_t len, uint32_t *seq_out, uint8_t *err_out);
static bool isHandshakeEchoAck(const uint8_t *payload, size_t len);
static bool isChallengePayloadAck(const uint8_t *payload, size_t len);
static bool isConfirmPlainAck(const uint8_t *payload, size_t len);
static bool isSizeSeq0Ack(const uint8_t *payload, size_t len);
static bool isFinishPlainAck(const uint8_t *payload, size_t len);
static bool isTransferDoneAck(const uint8_t *payload, size_t len);
static bool isStructuredAckWithPayload(const uint8_t *payload, size_t len);
static esp_err_t pollUntilExpectedAckShape(const char *stage,
uint8_t *resp_type,
uint8_t *resp_payload,
size_t resp_max,
size_t *resp_len,
uint32_t poll_timeout_ms,
uint32_t wait_rounds,
uint32_t maxExtraPolls,
bool (*matcher)(const uint8_t *, size_t));
static bool parseAndVerifyChallengePayload(const uint8_t *resp_payload, size_t resp_len,
uint8_t *out_k_session, uint8_t *out_uid);
static bool aes128EcbEncrypt48Bytes(const uint8_t *key, const uint8_t *in, uint8_t *out);
static void calculateCrc32WithKey(const uint8_t *key, const uint8_t *data48, uint8_t *output);
private:
OtaRelay() = default;
~OtaRelay() = default;
OtaRelay(const OtaRelay&) = delete;
OtaRelay& operator=(const OtaRelay&) = delete;
};
#endif // OTA_RELAY_H