Re: Multiple messages in one UDP packet

[Martin Visser <martinvisser99 () gmail com>]

Network management protocols like VRRP or OSPF have this function
(multiple PDUs in the one UDP frame) so check their dissectors for an
example.

Regards, Martin

MartinVisser99 () gmail com



On 19 March 2011 00:08, Chipi <norbert.kocsis () gmail com> wrote:
> Hi,
>
> I have to write a dissector for an internal protocol over UDP. In some cases
> the UDP packets can contain multiple messages (only full messages, so there
> wont be any message split up into two UDP packets), and I would like to know
> if there is a way to display multiple messages from an udp packet, like
> MySQL dissector does over TCP? (it uses tcp_dissect_pdus, but as I saw,
> there's no similar functions for udp)
> I looked around but I couldn't figure out how to call my dissector multiple
> times for the same packet.
>
> So it should look like this:
> -- FRAME
> -- ETHERNET II FRAME
> -- IP FRAME
> -- UDP FRAME
> -- MY PROTOCOL FRAME
> -- MY PROTOCOL FRAME
> -- MY PROTOCOL FRAME
> -- MY PROTOCOL FRAME
>
>
> Thanks in advance!
>
> Chipi
>
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