Wireshark-dev: Re: [Wireshark-dev] Roofnet Dissector
From: Jaap Keuter <[email protected]>
Date: Mon, 11 Dec 2006 12:20:42 +0100 (CET)
Hi,

Time to whipe together a Wiki page on this....

Thanx,
Jaap

On Mon, 11 Dec 2006, Nicola Arnoldi wrote:

> Hello everybody.
> I send you as an attachment a sample capture file of a TCP session
> running over a roofnet wireless mesh.
> (zipped version of a tcpdump capture file obtained with wireshark)
>
> Obviously, Wireshark decodes only the MAC headers, treating the rest as
> 'data', as it doesn't now how to dissect...
>
> Thanks for any support!!!
>
>
> Nicola
>
> On dom, 2006-12-10 at 05:39 +0100, Sebastien Tandel wrote:
> > Hi,
> >
> >    I've looked at the pdf you sent. May you define further the following
> > fields :
> >
> > - type (are there any fixed values?)
> > - nlinks : this field is used to tell how many fields there will be in
> > the variable length header. Right?
> > - next : semantic ?
> > - flags : bit X means ... ?
> > - Query Dst : IPv4 ?
> >
> > Is this header used for the purpose of an improved source routing?
> >
> > Can you send me a sample capture file?
> >
> > thanx,
> > Sebastien Tandel
> >
> >
> > Nicola Arnoldi wrote:
> > > Here you will find informations for designing a dissector for the
> > > Roofnet Layer 2.5 routing protocol for wireless mesh network of
> > > http://pdos.csail.mit.edu/roofnet/.
> > >
> > > The Layer 2.5 works as follows.
> > >
> > > - Inside the MAC 802.11 frame a 1500 byte datagram is located.
> > >
> > > It consists of a 400 byte header and a 1100 byte data field. (see
> > > attachment for a pictorial representation)
> > >
> > >
> > > The 400-bytes header contains a lot of informations. Some of them are
> > > fixed, such as the protocol version and other stuff (160 bytes).
> > >
> > > The variable-length part of the header contains routing information of a
> > > multi-hop transmission. More specifically, those bytes contain the IP
> > > addresses of the hops involved in the route of the current datagram.
> > >
> > > So, 1100+400 bytes form the payload of Layer 2 MAC protocol.
> > >
> > > In the data field a standard UDP or TCP datagrams may be carried.
> > >
> > > I hope everything is clear.
> > >
> > > If you need a sample capture just tell me.
> > >
> > > Regards
> > >
> > > Nicola Arnoldi
> > >
> > >
> > > On ven, 2006-12-08 at 15:16 -0800, Stephen Fisher wrote:
> > >
> > >> On Thu, Dec 07, 2006 at 10:22:26AM +0100, Nicola Arnoldi wrote:
> > >>
> > >>
> > >>> If you're into wireless mesh networking stuff, you've probably heard
> > >>> about Roofnet, an MIT project with WMNs. Well, Roofnet introduces a
> > >>> 2.5 OSI Layer, with certain headers. Anyone designed a dissector for
> > >>> Roofnet or is anyone interested into it?
> > >>>
> > >>> If so, please contact me, I will be happy to provide the packet
> > >>> structure...
> > >>>
> > >> Feel free to send a link to the packet structure and a link to a sample
> > >> capture file to the list.  Someone may have time to work on a dissector
> > >> for it.  If you don't hear anything back, add it to the wish list (again
> > >> with the structure and a capture file) at
> > >> http://wiki.wireshark.org/WishList
> > >>
> > >>
> > >> Steve
> > >> _______________________________________________
> > >> Wireshark-dev mailing list
> > >> [email protected]
> > >> http://www.wireshark.org/mailman/listinfo/wireshark-dev
> > >>
> > >> ------------------------------------------------------------------------
> > >>
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> > >>
> >
>