Wireshark · Wireshark-dev: Re: [Wireshark-dev] Data from previous protocol

[Guy Harris <guy@xxxxxxxxxxxx>]

ali alkhalidi wrote:
> for example:
>
> putting the following code in of the the dissectors above IP, segfaults????
>
> 	if(tree){
> 	fprintf(stderr,"%d\n",tree->finfo->start);
> 	firstbyte=tvb_get_guint8(tree->finfo->ds_tvb,tree->finfo->start);

That's not supported.

If you want data from another protocol, that protocol will have to 
supply it to you.

What protocol are you trying to get data from, and what data are you 
trying to get from it?