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Wireshark-dev: Re: [Wireshark-dev] MIB parsing unnecessary

From: "Luis EG Ontanon" <luis.ontanon@xxxxxxxxx>
Date: Mon, 13 Aug 2007 23:56:20 +0200
I take a note.

On 8/13/07, Jaap Keuter <jaap.keuter@xxxxxxxxx> wrote:
> Hi,
>
> There's a long standing bug on this: bug 1088.
> Fixing that would be most appreciated.
>
> Thanx,
> Jaap
>
> Luis EG Ontanon wrote:
> > You'll keep that feature :-)
> >
> > char* format_oid_decoded(guint8* oid, guint32 len) {
> >       char* result;
> >       guint32 matched;
> >       oid_info_t* oid_info = lookup_oid(oid, len, &matched);
> >
> >       if (oid_info) {
> >               result = oid_info->decoded;
> >       } else {
> >               result = "";
> >       }
> >
> >       if (len - matched == 0) {
> >               return result;
> >       } else {
> >               return ep_strdup_printf("%s.%u",result,format_oid_undecoded(&(oid[len
> > - matched]), len - matched) );
> >       }
> > }
> >
> > On 8/13/07, Anders Broman <a.broman@xxxxxxxxx> wrote:
> >> Hi,
> >> It sounds really good, a few thoughts:
> >>
> >> A "feature" of the current MIB parser is that it will print the
> >> "resolved" part of an OID tree (name: 1.3.6.1.4.1.5825.3.2.1.2.6.1.1.1
> >> (SNMPv2-SMI::enterprises.5825.3.2.1.2.6.1.1.1)) which is lacking from
> >> OID's added from ASN1 dissectors. I have found this useful on occasion.
> >> It would be nice to keep this feature.
> >>
> >> The tool to create the file must be part of the distro and run on all
> >> Platforms as it's possible to add private MIB's today.
> >>
> >> As the file becomes much smaller we can consider supplying more "MIB's"
> >> With the package.
> >> Regards
> >> Anders
> >>
> >>
> >>
> >>
> >>
> >> -----Ursprungligt meddelande-----
> >> Från: wireshark-dev-bounces@xxxxxxxxxxxxx
> >> [mailto:wireshark-dev-bounces@xxxxxxxxxxxxx] För Luis EG Ontanon
> >> Skickat: den 13 augusti 2007 18:53
> >> Till: Developer support list for Wireshark
> >> Ämne: [Wireshark-dev] MIB parsing unnecessary
> >>
> >> I been thinking about the fact that Wireshark does not really need a
> >> MIB parser. It just needs to know OIDs, their name and their type.
> >>
> >> So I believe we should use a flat file that contains these three
> >> fields and provide the user with a separate program that actually
> >> reads the MIBs to maintain this file: like adding and removing
> >> modules. A file with basic oids should be provided to the user.
> >>
> >> That way we could get rid of the NET-SNMP dependency, and *clean* a
> >> dissector that really needs it. I guess that more than 1/3rd (2/3rds
> >> if we take encryption out) of the handwritten code in
> >> packet-snmp-template.c can easily go. And trust me, no one will ever
> >> miss it, especially the maintainers.
> >>
> >> The program to maintain the oids file (based on libsmi) I got it
> >> almost written (while "playing" with libsmi).
> >>
> >> The changes t get rid of the "extra code" in packet-snmp I'll commit
> >> in the next week or so if no one objects that.
> >>
> >> Luis
> >>
>
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