/* Callback function that returns the pdu length. Used by TCP dissector. */
static guint get_knet_pdu_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset, void *data _U_)
/* Callback function that returns the pdu length. Used by TCP dissector. */
static guint get_knet_pdu_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset, void *data _U_)
{
    return count_vle_bytes(tvb, offset) + dissect_content_length_vle(tvb, &offset, NULL);
}