[ronnie sahlberg <ronniesahlberg@xxxxxxxxx>]

Sure can do,
But those links does not seem to work for me.

Do you have alternative links to the ASN1 definitions?



On Tue, 14 Sep 2004 10:49:10 +0000, Sid Sid <ysidelnikov@xxxxxxxxxxx> wrote:
> Hi,
> probably, it will be better to implement new dissector using ASN2ETH
> compiler.
> For example, I was going to implement CMIP dissector:
> http://www.itu.int/ITU-T/asn1/database/itu-t/x/x711
> http://www.itu.int/ITU-T/asn1/database/itu-t/x/x721
> Could you generate this dissector using ASN2ETH ?
> I can take part in the implementing/testing process.
> Thank you.
> Yuriy.
> 
> >From: ronnie sahlberg <ronniesahlberg@xxxxxxxxx>
> >Reply-To: ronnie sahlberg <ronniesahlberg@xxxxxxxxx>,Ethereal development
> ><ethereal-dev@xxxxxxxxxxxx>
> >To: Ethereal development <ethereal-dev@xxxxxxxxxxxx>
> >Subject: Re: [Ethereal-dev] ASN1.C and Packet-ACSE.c and Packet-pres.c
> >Date: Mon, 13 Sep 2004 19:54:45 +1000
> 
> 
> >
> >I just looked at the acse asn1 definition
> >and apart from a few constructs such as
> >           [0]  ABSTRACT-SYNTAX.&Type
> >and
> >     [3] IMPLICIT SEQUENCE {other-mechanism-name
> >                              MECHANISM-NAME.&id({ObjectSet}),
> >                            other-mechanism-value
> >                              MECHANISM-NAME.&Type
> >                                ({ObjectSet}{@.other-mechanism-name})}
> >(which would have to be handimplemented inside the template)
> >
> >The ASN2ETH compiler should be able to generate code for the entire
> >protocol quite easily and with very little effort.
> >
> >
> >If you are game, I can create a dissector for the full protocol using
> >the ASN2ETH compiler (and handimplement the two constructs above in
> >the template).
> >
> >Would you then be willing to test it and port over the remaining logic
> >which the compiler doesnt handle yet?
> >
> >(I think it would be even easier to maintain than the current one
> >since for example there would now be a generic infrastructure to
> >handle calling a subdissector based on OID
> >(register_ber_oid_dissector()  )
> >
> >
> >
> >
> >
> >On Mon, 13 Sep 2004 08:19:28 +0000, Sid Sid <ysidelnikov@xxxxxxxxxxx>
> >wrote:
> > > >From: Herbert Falk <herb@xxxxxxxxxxxx>
> > > >IEC 61850 is specifying the use of X,509 certificates for Application
> >Level
> > > >Authentication within ACSE.  I have extended packet-acse.c to decode
> >this
> > > >and the ACSE Authentication values as specified by ACSE and the ACSE
> > > >Mechanism Name.
> > > I guess it's the best way  - to extend but not to rewrite.
> > > >In doing so, I found that packet-acse.c and packet-pres.c make limited
> >use
> > > >of ASN1.c.  Thus they are vulnerable and will break if indefinite
> >length
> > > >encodings are encountered.
> > > Strong   assertion.
> > > Do you really have  example of capture file which breaks acse/pres
> > > dissectors?
> > > If yes do you mind to send me such file(s) ?
> > > I guess all what we need is to path acse/pres dissectors if need be
> >using
> > > such capture file.
> > > I already have MMS capture file you've sent me couple of months ago  -
> >seems
> > > ok with acse/pres dissectors.
> > > Thank you.
> > >
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