static MbedtlsPkcs11Status_t configureMbedtlsFragmentLength()

in platform/posix/transport/src/mbedtls_pkcs11_posix.c [469:495]

• 17 lines of code
• 2 McCabe index (conditional complexity)

static MbedtlsPkcs11Status_t configureMbedtlsFragmentLength( MbedtlsPkcs11Context_t * pMbedtlsPkcs11Context )
{
    MbedtlsPkcs11Status_t returnStatus = MBEDTLS_PKCS11_SUCCESS;
    int32_t mbedtlsError = 0;

    assert( pMbedtlsPkcs11Context != NULL );

    /* Set Maximum Fragment Length if enabled. */
    #ifdef MBEDTLS_SSL_MAX_FRAGMENT_LENGTH

        /* Enable the max fragment extension. 4096 bytes is currently the largest fragment size permitted.
         * See RFC 6066 https://tools.ietf.org/html/rfc6066#page-8 for more information.
         *
         * Smaller values can be found in "mbedtls/include/ssl.h".
         */
        mbedtlsError = mbedtls_ssl_conf_max_frag_len( &( pMbedtlsPkcs11Context->config ), MBEDTLS_SSL_MAX_FRAG_LEN_4096 );

        if( mbedtlsError != 0 )
        {
            LogError( ( "Failed to maximum fragment length extension: mbedTLSError= %s : %s.",
                        mbedtlsHighLevelCodeOrDefault( mbedtlsError ),
                        mbedtlsLowLevelCodeOrDefault( mbedtlsError ) ) );
            returnStatus = MBEDTLS_PKCS11_INTERNAL_ERROR;
        }
    #endif /* ifdef MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
    return returnStatus;
}