Hi,

what is the value of HEADER_LENGTH?

Best regards
Michael

On Apr 23, 2009, at 7:06 AM, [email protected] wrote:

> Hi,
>
> I am developing a dissector for MPICH over TCP and trying to use
> tcp_dissect_pdus. But unfortunately I am getting a blank screen. My  
> code
> looks like this:
>
> void
> dissect_mpich_tcp_nonepm (tvbuff_t * tvb, packet_info * pinfo,  
> proto_tree
> * tree)
> {
>  tcp_dissect_pdus (tvb, pinfo, tree, mpich_desegment, HEADER_LENGTH,
> get_mpich_pdu_len, dissect_mpich_tcp_nonepm_pdu);
> }
>
> guint
> get_mpich_pdu_len (tvbuff_t * tvb, int offset)
> {
>
>  guint32 messageSize = 0;
>  guint32 messagetype = 0;
>
>  messagetype = tvb_get_ntohs(tvb, offset);
>
>  if (messagetype == MPIDI_CH3_PKT_EAGER_SEND)
>     messageSize = tvb_get_ntohs(tvb,offset + 12);
>
>
>  return messageSize;
>
> }
>
>
> I noticed my code enter get_mpich_pdu_len but never goes beyond
> messagetype = tvb_get_ntohs(tvb, offset); line.
>
> I am not sure what I am doing wrong.
>
> Any help is fully appreciated.
>
>
> Seyed.
> _________________________________________
>
>
>
> Seyed M. Mirtaheri
> +1 (778) 883 3500
> Department of Computer Science
> University of British Columbia
>
>
>
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