Re: NSE: IDL parser

[Patrick Donnelly <batrick () batbytes com>]

Hi Dražen,

2010/5/12 Dražen Popović <dpopovic () lss hr>:
> 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

How do you see the entire system working? I fear I don't understand
how it all comes together. It sounds like you will use PIDL to
generate C stubs that we will bind to NSE?

-- 
- Patrick Donnelly
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