Re: [msvc] 'etype_vals' : unknown size

[Anders Broman <a.broman () bredband net>]

Hi,
Nothing to do with your problem but there is also a openflow dissector 
being developed in trunk
http://anonsvn.wireshark.org/viewvc/trunk/epan/dissectors/packet-openflow.c?revision=50623&view=markup
written in C. It would be better to pool resources and work on that one.
Regards
Anders

DbdM Tbt skrev 2013-08-13 06:10:
> Hello again,
> I forgot to add that this 'hack' requires wireshark to be compiled in 
> two steps (if ever compilation is done from scratch or after distclean).
> The first step is to 'make all' without the modification to etype_vals 
> and without the openflow plugin.
> Then the second step is to plug in the openflow dissector and modify 
> etype_vals and make again.
> Clearly something is not right with this picture.
> Hopefully this additional info clears some things.
> Thanks.
>
>
> On Tue, Aug 13, 2013 at 11:07 AM, DbdM Tbt <spin.x2k () gmail com 
> <mailto:spin.x2k () gmail com>> wrote:
>
>     Hello and good day.
>     My name is David and this is my first post in the list.
>     I am currently studying how to develop a dissector and currently
>     building on top of an existing one.
>     The base I am using is an openflow dissector found here:
>     http://www.openflow.org/wp/downloads/#dissector
>     Created by Mr. David Underhill.
>
>     Before proceeding, I would like to say that where possible, I try
>     to strictly follow the developers guide:
>     www.wireshark.org/docs/wsdg_html_chunked/ChSetupWin32.html
>     <http://www.wireshark.org/docs/wsdg_html_chunked/ChSetupWin32.html>
>     I think the only difference in my case is that I am using MS
>     Visual Studio 2010 instead of the Express edition.
>
>     My environment is now this:
>     [OS] WindowsXP Professional SP3 32bit
>     [Compiler] Microsoft (R) 32-bit C/C++ Optimizing Compiler Version
>     16.00.40219.01 <tel:16.00.40219.01> for 80x86
>        Copyright (C) Microsoft Corporation.  All rights reserved.
>     [Wireshark Base] ver: 1.10.1
>        url: http://www.wireshark.org/download/src/wireshark-1.10.1.tar.bz2
>
>     Setup and compilation is ok with the wireshark sources as is.
>
>     But when I include the openflow dissector, I get this error (among
>     others):
>     C:\wireshark-1.10.1\epan/etypes.h(541) : error C2133: 'etype_vals'
>     : unknown size
>
>     I tried to work around this error by modifying epan/etypes.h like
>     this:
>     + #ifdef _WIN32
>     + WS_DLL_PUBLIC const value_string *etype_vals;
>     + #else
>       WS_DLL_PUBLIC const value_string etype_vals[];
>     + #endif
>
>     After modifying this and working around other compile errors (not
>     part of the topic), I have successfully built the plugin and
>     wireshark.
>
>     I am a beginner in developing for windows as my experience is
>     mostly in linux environments (GNU).
>
>     So I would like to ask for the opinions on the developers in this
>     list if what I did was safe.
>     Is there a more 'correct' modification?
>     Is there a way around this error without modifying any wireshark
>     codes?
>
>     Thank you very much,
>     David
>
>
>
>
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