Wireshark-dev: Re: [Wireshark-dev] dissector plugin help
From: philippe alarcon <[email protected]>
Date: Fri, 27 Mar 2009 14:37:07 +0100
Hi Brian,

We have not the same environment.
On my station, I have generated WireShark 1.1.3,
and I use "Microsoft Visual C++ 2008 Express Edition".
In this environment, your plugin is running correctly.

I remember that others have encountered problems
for using a recent plugin with older versions of WireShark,
and/or for generating plugin without having the complete
development tree of WireShark.
Have you searched in the mail archives ?

Regards
Philippe

> Date: Fri, 27 Mar 2009 08:34:02 -0400
> From: [email protected]
> To: [email protected]
> Subject: Re: [Wireshark-dev] dissector plugin help
>
> Philippe
>
> I sent you an e-mail with some screen shots but it appears the screen
> shots were too big.
> So here is my outcome...maybe you will get the screenshots later.
>
> I still get the same results.
> I changed in the code where the ports file lives at to (c:/ports.txt).
> My ports.txt file is at the root of C:.
> I rebuilt the code.
> Deployed the .dll's files to the plugin directory of several machines
> running different versions of wireshrak
> and I still get:
>
> **"Couldn't load module", The specified module could not be found.**
>
> I build your code using VS 2005.
>
> Any Thoughts...??
>
> Are you able to run my plugin on any machine or just a development
> machine..?
> The goal of this plugin is to have people download the helen.dll file
> place it in their plugin directory and have it work.
>
> Having them download wireshark and build it to get my plugin to run is
> probably too much effort
> I can get this to work on Linux with no problems. They download the
> helen.so file place it in the plugin directory and everything works fine.
>
> Thanks again for all your help.
>
> Brian
>
>
>
> philippe alarcon wrote:
> > Hello Brian,
> >
> > I have taken your code and created the plugin using my environment.
> > I have no problem to load your plugin.
> > Find here attached all the package.
> > May be you could check if the created dll works with your Wireshark.
> >
> > Note that I have changed the directory used to get ports.txt in the
> > source.
> >
> > May be this can help you in solving your problem.
> >
> > If you send an example of capture, I can check if your dissector is
> > working correctly
> > with your protocol.
> >
> > Regards
> > Philippe
> >
> >
> > Date: Fri, 27 Mar 2009 00:12:52 -0400
> > From: [email protected]
> > To: [email protected]
> > Subject: Re: [Wireshark-dev] dissector plugin help
> >
> > Olivier (wsge)
> >
> > I really appreciate your quick response.
> >
> > I have added the following line to my Makefile.nmake
> > mt.exe -manifest helen.dll.manifest - outputresource:helen.dll;2
> >
> > This does indeed create a helen.dll.manifest file. I take that along with the helen.dll
> > file and copy it into my plugins directory on another (deployment) machine.
> >
> > I am still getting the error:
> > *"Couldn't load module", The specified module could not be found.*
> >
> > Am I missing something here..?
> >
> > Attached is all my code and files in the helen.zip file.
> > Also attached is my ports file that goes in the root of C: (c:\ports.txt)
> >
> > Some things have changed from my last e-mail.
> >
> > I downloaded the source wireshark-1.1.2-SVN-26844.
> > I built wireshark using the Visual Studio 2005 Command prompt.
> > I put my plugin in place and it too builds fine and runs great on the development machine.
> > I have no problems running my software and dissecting packets.
> >
> > But when I copy the helen.dll.manifest and the helen.dll to another machine I get
> > **"Couldn't load module", The specified module could not be found.**
> >
> > Any thoughts..?
> >
> > Thank you very much for your help.
> >
> > Brian
> >
> >
> >
> >
> >
> > wsgd wrote:
> >
> > I think the answer is into your first mail :
> > http://www.wireshark.org/lists/wireshark-dev/200902/msg00013.html
> >
> > To include the manifest inside the dll :
> >
> > mt.exe -manifest <dll_name>.dll.manifest - outputresource:<dll_name>.dll;2
> >
> >
> > Also, into proto_reg_handoff_helen,
> > if you have many ports,
> > you are calling many times :
> > - data_handle = find_dissector("data"); ---> useless
> > - helen_handle = create_dissector_handle(dissect_helen, proto_helen);
> > ---> I do not think it works
> >
> >
> > Olivier
> >
> > Brian Oleksa a écrit :
> >
> >
> > Olivier (wsgd)
> >
> > I fixed the problem in the code that you found. Thanks again for finding
> > this.
> > I tested it on the development machine and it worked great.!!
> >
> > I then took the created helen.dll file and dropped it on a deploy
> > machine that is running the same version of wireshark that I developed
> > against
> > only to find that it "Couldn't load module", The specified module could
> > not be found.
> >
> > Any suggestions or thoughts on this one..?
> >
> > Thanks again for all your help.
> >
> > Brian
> >
> >
> >
> > wsgd wrote:
> >
> >
> >
> > Hello,
> >
> > Into proto_reg_handoff_helen,
> > you try to fopen("/root/ports", "r"),
> > which certainly fails on windows,
> > so you call exit(1).
> >
> >
> >
> > Olivier
> >
> > Brian Oleksa a écrit :
> >
> >
> >
> >
> > Wiresharkers
> >
> > I have followed these instructions: (I used both of these as one was
> > more clear than the other on certain tasks).
> > http://www.codeproject.com/KB/IP/custom_dissector.aspx
> > http://www.wireshark.org/docs/wsdg_html_chunked/ChSetupWin32.html
> >
> > I am using:
> >
> > MSVC_VARIANT=MSVC2008EE
> >
> > I then verify_tools, install libraries (nmake -f Makefile.nmake
> > setup), distclean and build wireshark with *NO *problems.
> >
> > I then test wireshark and it does indeed start up with *NO *problems.
> >
> > I then create my wireshark dissector code, make files etc.*
> > (NOTE: This runs on Linux FC-9 with NO problems. If I take the
> > attached helen.zip file go to my
> > linux box, do a make install and put the helen.so file in the plugin
> > directory everything works fine.)
> > *
> >
> >
> > I drop my code in place. C:\wireshark\plugins\helen
> > The name of my wireshark dissector is called helen.
> >
> > From the C:\wireshark\plugins\helen directory I do the following:
> > nmake -f Makefile.nmake distclean
> > nmake -f Makefile.nmake all
> >
> > I have NO errors and it does indeed create a *helen.dll* file. (Which
> > I believe is what I want).
> >
> > I drop this helen.dll file in the following directory:
> > C:\wireshark\wireshark-gtk2\plugins\1.1.4HELEN-DISSECTOR
> >
> > I start up wireshark (by invoking wireshark.exe) the splash screen
> > appears for a second than disappears. So it never start up.
> > It does not provide me with a error message.
> >
> > I tried the following work around (click on link below) but had NO luck.
> > http://www.wireshark.org/lists/wireshark-dev/200902/msg00013.html
> >
> > So at this point...I am stuck.
> >
> > Attached is all my code (helen.zip). Again, this same code works on my
> > fedora core 9 box.
> >
> > Any help is greatly appreciated.
> >
> > Thank you
> >
> > Brian Oleksa
> > Software Developer
> > Dark Corner Software
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
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