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

["ali alkhalidi" <alikhalidilug@xxxxxxxxx>]

the protocol I want data from is IP, and I'm intrested in at least the
least 20 bytes (a normal non-fragmented IP datagram) of it, things
that cover the basic things like packet-id, payload length, etc.

thanks,

On 3/11/07, Guy Harris <guy@xxxxxxxxxxxx> wrote:
> 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?
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