Wireshark-dev: Re: [Wireshark-dev] how to make tcap subdissector in plugin
From: "yin sun" <[email protected]>
Date: Thu, 7 Jun 2007 10:16:54 -0400
This is what I ended up doing. Copy paste TCAP and GSMMAP code into
plugin and add my private opcode handling. Why do I need private
opcode. Probably I don't understand how  can I utilize this extension
container as mentioned below. In my case what I need is switch to a
new opcode such as 0xff, then dissect a bunch of private parameters.
Are then defined in 3GPP maybe or maybe not. I think the problem I had
is generic.

Someone wants to have something new for wireshark, and the new thing
is easier to deploy under plugin. But it needs to inherit
implementation from build-in dissector.

Thanks,
/Yin


On 6/6/07, Anders Broman <[email protected]> wrote:
Hi,
I suppose this means you have to rebuild the complete MAP
Dissector as a plugin adding your opcode(s) if the opcode isn't
clashing with the existing ones perhaps it can be added to the existing MAP
dissector.

Why do you feel the you need to add private opcodes to MAP
instead of using the existing ones adding extension containers for any
private data needed or work with 3GPP to get the new opcodes you need
added to MAP.
Regards
Anders

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Skickat: den 5 juni 2007 21:13
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Ämne: Re: [Wireshark-dev] how to make tcap subdissector in plugin

It is a private opcode to MAP.

/Yin

On 6/5/07, Anders Broman <[email protected]> wrote:
> Hi,
> Is it a private opcode to MAP or something missing from MAP?
> Regards
> Anders
>
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> Från: [email protected]
> [mailto:[email protected]] För yin sun
> Skickat: den 5 juni 2007 20:59
> Till: Developer support list for Wireshark
> Ämne: [Wireshark-dev] how to make tcap subdissector in plugin
>
> Hello developer,
>
> I have made the FooPage example working for plugin. Now I want to have
> a plugin similar to GSM-MAP but as a plugin. Basically this plugin
> will provide decoder for new opcode. The problem is, to register under
> tcap I have to call add_itu_tcap_subdissector as I read from gsmmap
> code. And this function is defined in dissectors.lib, which is not
> visible to plugin. So the question is
> 1. Can we in general make all the functions in dissectors accessible to
> plugin.
> 2. where should we draw a line between dissector and plugin.
>
> Thanks,
> /Yin
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