----- Original Message -----
From: "Ronnie Sahlberg"
Sent: Tuesday, June 10, 2003 7:04 PM
Subject: Re: Re: [Ethereal-dev] [Fwd: ASN2ETH]
> I have initial support for ASN.1 PER decoding with PER dissector
> subroutines embedded in the
> same file as a semi-complete H.245 decoder.
> It decodes most of the constructs of H245 ASN.1 PER.
>
> The dissector helper routines are different from the normal ethereal
> decoders in that they operate
> on the bit-position and not the byte offset into the packet.
>
>
> Most of it is table driven and tables and helper routines are called to
> handle SEQUENCE and SET [OF]
> and INTEGER variables and currently decodes a fair amount of the subset of
> constructs used by H.245
> based on the V9 ASN.1 IDL file for the h.245 interface.
>
>
> Is your compiler going to operate on the bit-level as well?
> If so you may want to look at the helper routines I did for the dormant
> semi-complete h245 decoder.
> I wont attach the dissector in this mail since it is like 1MB in size but
if
> you want to look
> at it and the embedded helpers mail me and ill mail it directly to you.
>
> If my helpers interface makes sense, maybe the asn2eth compiler could just
> generate
> code for BER/PER based on a simple flag that would just do
> sed -e "s/_ber_/_per_/g"
>
>
> if you want to look at the helpers please tell me where to mail it. it
is
> PER+h245 around 1MB in size.
>
