I think, that the GMM/SM code can be put into a separate dissector. The protocol discriminator ( ETSI 4.07 V 7.3.0 ch:11.2.3.1.1)can be used for calling such dissector from other one on radio 3rd layer. By my understanding, it(GMM) will be subdissector of L3.
The tvb buffer for this dissector (GMM) should start with byte containing this protocol discriminator. It is my impression. The things might be clearer later.
Regards Josef
----- Původní zpráva -----
Od: Michael Lum <mlum@xxxxxxxxxxxxx>
Datum: úterý, 11. listopadu 2003 v 10:05 dop
Předmět: RE: RE: [Ethereal-dev] bssgp/llc/gmm-sm support
> I know quite a bit about MM/CM portions of
> both specs but near nothing about
> GMM/SM.
>
> Can the GMM/SM code be put into a separate
> dissector?
> Then GSM A-i/f dissector would "push" the
> data out for the GMM/SM dissector.
>
> The BSSGP/LLC dissector could do the same thing.
>
> Basically the GMM/SM dissection is shared.
> A GMM/SM dissector would try and
> grab something like "gsm_a.gmm_sm" and
> "bssgp.gmm_sm".
> > -----Original Message-----
> > From: jkor@xxxxxxxx [jkor@xxxxxxxx]
> > Sent: Tuesday, November 11, 2003 12:50 AM
> > To: mlum@xxxxxxxxxxxxx
> > Cc: ethereal-dev@xxxxxxxxxxxx
> > Subject: Re: RE: [Ethereal-dev]
> bssgp/llc/gmm-sm support
> >
> >
> > Yes, it is. The 24.008 is 3GPP version ,
> but I still need 2G
> > version according ETSI 4.08 R98 I am aware
> about your dissector,
> > and gmm context is a part of it. I
> thought over how to
> > interconnect our work together. Have you
> some idea?
> > Josef
> >
> >
> > ----- Původní zpráva -----
> > Od: Michael Lum <mlum@xxxxxxxxxxxxx>
> > Datum: úterý, 11. listopadu 2003 v 9:31 dop
> > Předmět: RE: [Ethereal-dev] bssgp/llc/gmm-
> sm support
> >
> > > Is this GMM/SM defined in TS 24.008 ?
> > >
> > > > -----Original Message-----
> > > > From: ethereal-dev-bounces@xxxxxxxxxxxx
> > > > [ethereal-dev-bounces@xxxxxxxxxxxx]On
> > > Behalf Of jkor@xxxxxxxx
> > > > Sent: Tuesday, November 11, 2003 12:21 AM
> > > > To: Benoit Parrot
> > > > Cc: ethereal-dev@xxxxxxxxxxxx
> > > > Subject: Re: [Ethereal-dev]
> bssgp/llc/gmm-
> > > sm support
> > > >
> > > >
> > > > I am working on LLc dissector and also on
> > > GMM. At present time
> > > > these dissectors are able to decode
> LLC UI
> > > packets, recognize
> > > > other(U,I,S), protocol discriminator and
> > > type of message from
> > > > GMM.I will try to finish it during several
> > > days and offer it for
> > > > committing into CVS. I am open for
> > > cooperation.> Josef
> > > >
> > > > ----- Původní zpráva -----
> > > > Od: Benoit Parrot
> <bparrot@xxxxxxxxxxxxxxxxxx>> > > Datum:
> úterý, 11. listopadu 2003 v 3:56 dop
> > > > Předmět: [Ethereal-dev] bssgp/llc/gmm-sm
> > > support>
> > > > > Looking at the latest source code I
> noticed> > > > that packet-bssgp.c almost
> has support for
> > > > > an "llcgprs" dissector.
> > > > >
> > > > > I am interested in being able to
> decode GPRS
> > > > > Gb interface all the way up to BSSGP-
> > > >LLC-
> > > > > >GMM/SM/SNDCP, can somebody tell me
> what I
> > > > > would need to achieve this?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Benoit
> > > > >
> > > > >
> > >
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> > > > >
> > >
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> > > > >
> > > >
> > > >
> > >
> _______________________________________________> Ethereal-dev
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> > > > Ethereal-dev@xxxxxxxxxxxx
> > > >
> > >
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> > >
> > >
> >
>
>
