Re: NSE: IDL parser

[Ron <ron () skullsecurity net>]

One concern I have with using the .idl files that's probably better to raise now rather than later: are there any 
licensing issues? I'm not a lawyer, and I don't have a clear understanding of the different licences in play here, but 
I believe that Samba is GPL, which makes the .idl files GPL (I think). 

I seem to recall that Nmap has some issues using GPL code, so somebody might want to look into that sooner rather than 
later. 

Just thought I'd bring that up!

On Thu, 13 May 2010 00:30:21 +0200 Dražen Popović <dpopovic () lss hr>
wrote:
> Hi guys,
> I spent my day trying to figure out PIDL as it represents The Parser
> for IDL. As David noticed it is used to generate Wireshark
> dissectors, as well as SAMBA Python bindings, SAMBA client and server
> stubs.
>
> I came to conclusion that PIDL would be our best approach in the
> matter. I downloaded the PIDL [1] and SAMBA IDL files [2] from SVN
> repository. One tip that pidl manual [3] provided is to look at the
> internal tree representation...so I did. It seems that PIDL operates
> on this ".pidl" representation of ".idl"s. What is great about
> ".pidl"s is that their structure is relatively simple and could be
> parsed in a reasonable time period. ".pidl" is actually one big Perl
> variable =).
>
> Using this internal representation PIDL could be extended for other
> languages, purposes, as demonstrated with Wireshark, Python and SAMBA.
> One should just parse the ".pidl" which is simpler in syntax than
> ".idl".
>
> If you're interested in taking a look at ".pidl":
>
> bash$pidl --dump-idl-tree="echo.pidl" echo.idl
>
> "echo.idl" is a testing interface used by SAMBA developers and it's
> distributed along with SAMBA [2]. This should be our testing IDL as
> well.
>
> @Patrick:
> For the time being I don't see Lpeg as part of NSE runtime, as far as
> MS-RPC is concerned of course. But it's definitely something to
> consider in the future.
>
> [1] svn://svnanon.samba.org/samba/branches/SAMBA_4_0/source/pidl 
> [2]
> svn://svnanon.samba.org/samba/branches/SAMBA_4_0/source/librpc/idl
> [3] http://search.cpan.org/~ctrlsoft/Parse-Pidl-0.01/pidl
>
>
> -- 
> Laboratory for Systems and Signals
> Department of Electronic Systems and Information Processing
> Faculty of Electrical Engineering and Computing
> University of Zagreb
>
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-- 
Ron Bowes
http://www.skullsecurity.org
http://www.twitter.com/iagox86

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