Re: Coding challenge: Entry level summer project

[Jakub Zawadzki <darkjames () darkjames ath cx>]

On Fri, Jul 09, 2010 at 04:28:25PM +0200, Jaap Keuter wrote:
> Nowadays we see more and more the broadcasts as attached.
> Currently it's decoded as plain Data, 
> which it obviously is not, it's readable text!

It's not just readable text, it looks like JSON :)

> A quick peek at the IANA port list [1] shows it's Dropbox
> LanSync Discovery. 
>
> So here's the project: CREATE A DISSECTOR FOR THE
> DROPBOX LANSYNC DISCOVERY PROTOCOL 

I cheated a little and add support for heurestics to JSON dissector [1] :)
Screenshot after disabling db-lsp-disc protocol: 
 http://szara.chmurka.net/wireshark-json-dropbox.png

So for people who want to play it should be a little easier now.
However I can't find Dropbox LanSync Discovery protocol description, 
so I don't know if every packet is JSON.

Cheers.

[1] https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=4753
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