Wireshark-dev: Re: [Wireshark-dev] Naive attempt to dissect.
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From: "Bruno Hivert" <bruno@xxxxxxxxxxxxx>
Date: Tue, 7 Oct 2008 15:07:17 -0400
Er, well, I'n not sure I can post the packet because of (insert legalese FUD
here). And editing out some info is going to be a PITA (who knows how to
recalculate all the checksum, index, etc on all layers...)

However, If I have the time to figure out proper decoding, I can certainly
send a patch. When I looked at the code, there was certainly some TODO
lingering there.

/Bruno

-----Original Message-----
From: wireshark-dev-bounces@xxxxxxxxxxxxx
[mailto:wireshark-dev-bounces@xxxxxxxxxxxxx] On Behalf Of Anders Broman
Sent: October 7, 2008 14:36
To: 'Developer support list for Wireshark'
Subject: Re: [Wireshark-dev] Naive attempt to dissect.

Hi,
If you could post the packet it might be trivial to fix "proper" decoding.
Regards
Anders

-----Ursprungligt meddelande-----
Från: wireshark-dev-bounces@xxxxxxxxxxxxx
[mailto:wireshark-dev-bounces@xxxxxxxxxxxxx] För Jeff Morriss
Skickat: den 7 oktober 2008 19:24
Till: Developer support list for Wireshark
Ämne: Re: [Wireshark-dev] Naive attempt to dissect.



Bruno Hivert wrote:
> Hello,
> 
> I’m trying some very simple decoding for gsm-map packets. It’s very 
> simple, because the dissector I need already exists, it’s just not 
> called in the proper context.
> 
> If you have a look at the attached diff file, you’ll understand what I’m 
> trying to do.
> 
> However, I cannot even try this apparently trivial-as-an-API-call 
> modification, because it does not compile.
[...]
> epan/.libs/libwireshark.so: undefined reference to `de_bearer_cap'

[...]

> What am I doing wrong, and where can I express the dependency without 
> pulling way to many things in ?

The basic problem is that de_bearer_cap() is declared as static in 
packet-gsm_a_dtap.c: that means no other module (.c file) can use it. 
If you remove the keyword "static" it will at least link.  (Of course it 
would also be better to have a prototype in a header file, etc.)

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