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Ethereal-users: Re: [Ethereal-users] Encoding ASN.1

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From: ronnie sahlberg <ronniesahlberg@xxxxxxxxx>
Date: Fri, 17 Jun 2005 00:57:14 +1000
What protocol are you trying to decode? 
a semi-standard one or a completely proprietary one?
is it a protocol that might be interesting for the community?

if so it might be better if you create a real dissector for the
protocol since we have a compiler that translates ANS.1 into a real
builtin dissector.

see the code down in asn1  for examples of some 30-40 protocols
generated automagically this way.
there is also semi-extensive documentation in the wiki on how to use
asn2eth to generate a dissector from an ASN definition.


On 6/17/05, ronnie sahlberg <ronniesahlberg@xxxxxxxxx> wrote:
> Ah,   that is for the ASN.1 plugin.
> 
> That plugin is as far as i can tell a mechanism where you can compile
> the ASN definition of some protocol into a "dissector" which the
> plugin will load.
> 
> I have no idea on how that plugin works or how one uses it since i
> only work with "real" built in dissectors for ASN.1 based protocols.
> Is there no documentation  or README or anything on the WIKI on how to use it?
> 
> 
> On 6/17/05, Anguelov,Anguel <Anguel.Anguelov@xxxxxxxx> wrote:
> > Hi Ronnie,
> > you are right, ASN.1 is an encoding method and not a protocol.
> > But, if you go to "Edit->Preferences->Protocols" you can see ASN1 (for this reason I used "protocol", to be compatible with the Ethereal terminology)
> > I'm asking for some help how to configure this ASN1 Encoding method (protocol) in the Preferences panel with a custom ASN.1 encoding schema?
> > And then how to set up Ethereal to encode the packets to this ASN1 when on the "Decode As" panel is missing ASN1?
> > Thanks.
> >
> > Regards,
> > Anguel
> >
> >
> > -----Original Message-----
> > From: ronnie sahlberg [mailto:ronniesahlberg@xxxxxxxxx]
> > Sent: Donnerstag, 16. Juni 2005 16:39
> > To: Ethereal user support
> > Subject: Re: [Ethereal-users] Encoding ASN.1
> >
> >
> > ASN.1 is an encoding method, not a protocol.
> >
> > There is no protocol ASN.1 in ethereal.
> >
> > There are many many protocols in ethereal that use ASN.1 though :
> > H.248, H225, H.245, Kerberos, LDAP, SNMP, PKIX, X.509, ...
> >
> >
> > On 6/16/05, Anguelov,Anguel <Anguel.Anguelov@xxxxxxxx> wrote:
> > > Hi all,
> > > I need to encode some ASN.1 Packets with Ethereal.
> > > ASN.1 is not recognized automatically by Ethereal.
> > > When I try to use the feature "Decode as..." I can not find the ASN.1 protocol on the "Decode As" dialog.
> > > Do somebody have experience with ASN.1 and Ethereal?
> > > Are there some manuals/tutorials about this topic?
> > > Thanks.
> > >
> > > P.S. I'm using Ethereal v. 0.10.11
> > >
> > > Regards,
> > > Anguel
> > >
> > > _______________________________________________
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> > > http://www.ethereal.com/mailman/listinfo/ethereal-users
> > >
> >
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> >
>