void Mbedtls_Pkcs11_Disconnect()

in platform/posix/transport/src/mbedtls_pkcs11_posix.c [851:885]

• 28 lines of code
• 7 McCabe index (conditional complexity)

void Mbedtls_Pkcs11_Disconnect( NetworkContext_t * pNetworkContext )
{
    MbedtlsPkcs11Context_t * pMbedtlsPkcs11Context = NULL;
    int tlsStatus = 0;

    if( ( pNetworkContext != NULL ) && ( pNetworkContext->pParams != NULL ) )
    {
        pMbedtlsPkcs11Context = pNetworkContext->pParams;
        /* Attempting to terminate TLS connection. */
        tlsStatus = mbedtls_ssl_close_notify( &( pMbedtlsPkcs11Context->context ) );

        if( tlsStatus == 0 )
        {
            LogInfo( ( "Closing TLS connection: TLS close-notify sent." ) );
        }
        else if( ( tlsStatus == MBEDTLS_ERR_SSL_WANT_READ ) ||
                 ( tlsStatus == MBEDTLS_ERR_SSL_WANT_WRITE ) )
        {
            /* WANT_READ or WANT_WRITE can be ignored. Logging for debugging purposes. */
            LogInfo( ( "TLS close-notify sent; "
                       "received %s as the TLS status which can be ignored for close-notify.",
                       ( tlsStatus == MBEDTLS_ERR_SSL_WANT_READ ) ? "WANT_READ" : "WANT_WRITE" ) );
        }
        else
        {
            /* Ignore the WANT_READ or WANT_WRITE return values. */
            LogError( ( "Failed to send TLS close-notify: mbedTLSError= %s : %s.",
                        mbedtlsHighLevelCodeOrDefault( tlsStatus ),
                        mbedtlsLowLevelCodeOrDefault( tlsStatus ) ) );
        }

        /* Free contexts. */
        contextFree( pMbedtlsPkcs11Context );
    }
}