mbedtls

    mbedtls_net_init(&ssl->net_ctx);
    mbedtls_ssl_init(&ssl->ssl_ctx);
    mbedtls_ssl_config_init(&ssl->ssl_conf);
    mbedtls_ssl_conf_authmode(&ssl->ssl_conf, authmode);
    mbedtls_x509_crt_init(&ssl->cacert);
    mbedtls_x509_crt_init(&ssl->clicert);
    mbedtls_pk_init(&ssl->pkey);
    mbedtls_ctr_drbg_init(&ssl->ctr_drbg);
    mbedtls_entropy_init(&ssl->entropy);