Re: GIOP dissector reply decode

[Andy Ling <Andy.Ling () s-a-m com>]

I have made some changes to packet-giop.c that appear to work, but I don’t quite understand why.

What I have done is added two new members to struct comp_req_list_entry..

  address            src;       /* source address */
  guint32            srcport;   /* source port */

These I set by extending insert_in_comp_req_list

Then in get_mfn_from_fn_and_reqid I have extended the test

    if (entry_ptr->reqid == reqid && cmp_address (&entry_ptr->src, addr) == 0 && entry_ptr->srcport == pnum) {    /* 
similar reqid  */
      return entry_ptr->fn;     /* return MFN */

The bit I don’t understand is, to make this work the calls to insert_in_comp_req_list require pinfo->src and 
pinfo->srcport and the call to get_mfn_from_fn_and_reqid requires pinfo->src, pinfo->destport. This seems wrong I would 
have thought the get call would require the destination address, not the source.

The initial request stores the source IP & port. So I would have thought the reply would have a destination IP & port 
to match, but it seems I have to use the source IP and destination port.

Any idea what is going on?

Thanks for any help

Andy Ling
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