Wireshark · Wireshark-dev: Re: [Wireshark-dev] Writing python dissectors for Wireshark

[Evan Huus <eapache@xxxxxxxxx>]

The linked patch adds a preliminary automake file, adds some linux
build results to hgignore and fixes one last gcc-specific warning.
With this applied it at least builds on my Ubuntu box. I'm more or
less out of time for this at the moment unfortunately, hope it helps.

Cheers,
Evan

http://dl.dropbox.com/u/171647/pyreshark.patch

On Fri, Jan 18, 2013 at 12:15 PM, Eshed Shaham <ashdnazg@xxxxxxxxx> wrote:
> Thanks for the reply,
> I fixed the issues you mentioned in the source and also replaced some
> slashes with os.path alternatives. It's now pushed to googlecode repository.
> I think that python/cal/c_abstraction_layer.py should have the c'tor fixed
> (that's where the CDLL calls are) but unfortunately I don't have a linux
> machine at my disposal to test it.
> If you make any progress with the porting, send me with a patch I'd be more
> than happy to add it to the repository.
>
> Cheers,
> Eshed
>
> On Fri, Jan 18, 2013 at 2:35 AM, Evan Huus <eapache@xxxxxxxxx> wrote:
>>
>> Looks interesting. I haven't been able to get it to build on my Linux
>> box yet, but I've hit a few minor issues that are pretty trivial to
>> take care of:
>> - You have unnecessary trailing slashes in your Makefile.common -
>> specifically lines 31 and 36 can't have trailing slashes or autofoo
>> gets confused.
>> - You seem to be shipping a Makefile.in instead of a Makefile.am - the
>> former is typically generated by the latter, not the other way around.
>> - Functions taking no arguments must have their argument list
>> specified as void, not left blank, ie function(void) instead of
>> function(). This causes problems with init_pyreshark and
>> handoff_pyreshark. Note that this applies to the definition in the .c
>> file as well as the declaration in the .h file.
>>
>> I also ran into http://bugs.python.org/issue896330 but that's not your
>> fault :)
>>
>> With a little bit of hacking I managed to get it to run through GCC at
>> least. That spit out the following list of warnings-treated-as-errors:
>>
>> pyreshark.c: In function 'init_pyreshark':
>> pyreshark.c:60:5: error: passing argument 2 of 'PyFile_FromString'
>> discards 'const' qualifier from pointer target type [-Werror]
>> In file included from /usr/include/python2.7/Python.h:108:0,
>>                  from pyreshark.c:32:
>> /usr/include/python2.7/fileobject.h:40:24: note: expected 'char *' but
>> argument is of type 'const char *'
>> pyreshark.c: In function 'add_tree_item':
>> pyreshark.c:128:58: error: unused parameter 'pinfo'
>> [-Werror=unused-parameter]
>> pyreshark.c: In function 'add_text_item':
>> pyreshark.c:136:5: error: format not a string literal and no format
>> arguments [-Werror=format-security]
>> pyreshark.c:134:58: error: unused parameter 'pinfo'
>> [-Werror=unused-parameter]
>> pyreshark.c: In function 'push_tree':
>> pyreshark.c:140:54: error: unused parameter 'pinfo'
>> [-Werror=unused-parameter]
>> pyreshark.c: In function 'pop_tree':
>> pyreshark.c:151:53: error: unused parameter 'pinfo'
>> [-Werror=unused-parameter]
>> pyreshark.c: In function 'advance_offset':
>> pyreshark.c:161:59: error: unused parameter 'pinfo'
>> [-Werror=unused-parameter]
>> pyreshark.c: In function 'set_column_text':
>> pyreshark.c:172:33: error: unused parameter 'tvb_and_tree'
>> [-Werror=unused-parameter]
>> pyreshark.c:172:72: error: unused parameter 'p_offset'
>> [-Werror=unused-parameter]
>> pyreshark.c: At top level:
>> pyreshark.c:43:13: error: 'proto_dummy_pyreshark' defined but not used
>> [-Werror=unused-variable]
>>
>> Hope this helps,
>> Evan
>>
>> On Thu, Jan 17, 2013 at 12:29 PM, Eshed Shaham <ashdnazg@xxxxxxxxx> wrote:
>> > Hey guys,
>> >
>> > I recently coded a plugin for wireshark which is actually a framework
>> > for
>> > allowing new dissectors to be written in python.
>> > Unlike the unused python bindings in Wireshark's source, my plugin hides
>> > Wireshark's interface and provides a more "pythonic" one to the
>> > developer.
>> > I'm already using it for some time, and adding new features every now
>> > and
>> > then. Generally it can be quite useful if you don't like lua (or maybe
>> > even
>> > if you do...).
>> >
>> > Feel free to grab the code or precompiled Windows binaries from google
>> > code:
>> > http://code.google.com/p/pyreshark/
>> > There are also some helpful wiki pages there.
>> >
>> > Do note that I haven't tried compiling it on anything that isn't
>> > Windows, I
>> > believe the code might need some porting before it can be built for
>> > other
>> > OS's.
>> >
>> > Feedback of any kind is welcome,
>> > Eshed
>> >
>> >
>> >
>> >
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