fix(mbedtls): Fix dynamic buffer mbedtls handshake steps process return 0 when handshake fail

Author: donghengqaz

components/mbedtls/port/dynamic/esp_mbedtls_dynamic_impl.h

@@ -33,9 +33,6 @@
  \
     if ((_ret = _fn) != 0) { \
         ESP_LOGV(TAG, "\"%s\" result is -0x%x", # _fn, -_ret); \
-        if (_ret == MBEDTLS_ERR_SSL_CONN_EOF) {\
-            return 0; \
-        } \
         TRACE_CHECK(_fn, "fail"); \
         return _ret; \
     } \

components/mbedtls/port/dynamic/esp_ssl_tls.c

@@ -85,7 +85,16 @@ int __wrap_mbedtls_ssl_read(mbedtls_ssl_context *ssl, unsigned char *buf, size_t
 {
     int ret;
 
-    CHECK_OK(esp_mbedtls_add_rx_buffer(ssl));
+    ESP_LOGD(TAG, "add mbedtls RX buffer");
+    ret = esp_mbedtls_add_rx_buffer(ssl);
+    if (ret == MBEDTLS_ERR_SSL_CONN_EOF) {
+        ESP_LOGD(TAG, "fail, the connection indicated an EOF");
+        return 0;
+    } else if (ret < 0) {
+        ESP_LOGD(TAG, "fail, error=-0x%x", -ret);
+        return ret;
+    }
+    ESP_LOGD(TAG, "end");
 
     ret = __real_mbedtls_ssl_read(ssl, buf, len);