Ethereal-dev: RE: [Ethereal-dev] tethereal doesn't seem to dissect all layers

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From: "Michael Lum" <mlum@xxxxxxxxxxxxx>
Date: Thu, 27 Nov 2003 15:04:33 -0800
No it wasn't.

I will have to fix some of the other dissectors up that stack as well.

I copied the stuff checking where 'tree' is null, I'm not sure where it
should go.

Thanks Guy.



> -----Original Message-----
> From: Guy Harris [mailto:guy@xxxxxxxxxxxx]
> Sent: Thursday, November 27, 2003 2:53 PM
> To: Michael Lum
> Cc: Ethereal
> Subject: Re: [Ethereal-dev] tethereal doesn't seem to dissect all layers
> 
> 
> On Thu, Nov 27, 2003 at 02:48:24PM -0800, Michael Lum wrote:
> > I can see some output from the SCCP-Lite dissector, but none of the
> > packets that contain SCCP data.
> 
> Your SCCP-Lite dissector is calling the subdissector *regardless* of
> whether "tree" is null or not, right?
> 
> If not, that's a bug - subdissectors should *always* be called;
> otherwise, if a protocol tree isn't being built, the subdissectors won't
> be called.  If you're only showing the summary in Tethereal - or when
> the file is being read in in Ethereal without color filters, taps with
> filters, or a read filter - a protocol tree is *not* built.