Wireshark · Ethereal-dev: Re: [Ethereal-dev] ASN1.C and Packet-ACSE.c and Packet-pres.c

["Sid Sid" <ysidelnikov@xxxxxxxxxxx>]

Strange. Those links do work for me.
You have already mentioned link to :
> looking at packet-acse.c and comparing it with the ASN1 definition in
> ttp://www.itu.int/ITU-T/asn1/database/itu-t/x/x227bis/1998/ACSE-1.html

try to use this one as base and then go to CMIP asn1 definition.




> From: ronnie sahlberg <ronniesahlberg@xxxxxxxxx>
> Reply-To: ronnie sahlberg <ronniesahlberg@xxxxxxxxx>,Ethereal development 
> <ethereal-dev@xxxxxxxxxxxx>
> To: Sid Sid <ysidelnikov@xxxxxxxxxxx>
> CC: ethereal-dev@xxxxxxxxxxxx
> Subject: Re: [Ethereal-dev] ASN1.C and Packet-ACSE.c and Packet-pres.c
> Date: Tue, 14 Sep 2004 21:10:42 +1000
>
> 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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