kawaii-mqtt mbedtls

kawaii mqtt内嵌mbedtls与全局的mbedtls组件冲突

发布于 2025-07-15 17:36:22 浏览：83 订阅该版

最近在接入华为云物联网平台的时候碰到了这个问题,
起初 kawaii mqtt没启用mbedtls,使用mqtt非s的方式可以与平台正常通信,ota部分,平台强制要求https的方式,所以webclient启用了mbedtls组件,ota也是完美实现,
后来尝试平台的自注册功能,自注册功能也是强制要求mqtts,启用kawaii mqtt的mbedtls功能后,编译会报错,部分报错如下:

```c
packages\third-party\mbedtls\mbedtls\library\x509_create.c: In function 'x509_write_name':
packages\third-party\mbedtls\mbedtls\library\x509_create.c:239:15: error: 'MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED' undeclared (first use in this function)
  239 |     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
packages\third-party\mbedtls\mbedtls\library\x509_create.c:239:15: note: each undeclared identifier is reported only once for each function it appears in
packages\third-party\mbedtls\mbedtls\library\x509_create.c: In function 'mbedtls_x509_write_names':
packages\third-party\mbedtls\mbedtls\library\x509_create.c:272:15: error: 'MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED' undeclared (first use in this function)
  272 |     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
```
猜测是因为kawaii内嵌的mbedtls版本比较旧, 编译顺序靠后,覆盖了全局的mbedtls组件,
接着我开始尝试使kawaii使用全局mbedtls, 编译通过,但是运行报错:

```c
packages\kawaii-mqtt-latest\network\nettype_tls.c:154 nettype_tls_connect()...mbedtls handshake failed returned 0x4380
```
翻遍全网也没有合适的解答,继续尝试让webclient使用kawaii内置的mbedtls,编译通过,可以运行,平台下发ota时,也还是会报错,这里忘记记录了,就没有继续尝试.

最后来到论坛求助坛友.

最后:保留了mqtt的ssl,因为自注册重要一点,ota推送继续使用华为云平台的ota,但是是通过自定义信息处填写私有的http文件服务器地址来下载.