>
> > Yes, I could have a handler, but the idea was to leverage the tree
> that
> > is already built using the MIB files and not having to configure
> OIDs.
> >
> > On receiving a trap, the application would simply lookup the tree
> for
> > the "snmp_trap_oid" (second varbind in the v2c/v3 notifications)
> and
> > either process or drop the trap based on the the lookup return
> value.
> >
> > In this way the only traps that get acknowledged are the ones whose
> MIB
> > files are loaded into the snmptrapd application.
>
> Yup - you could implement that using the existing snmptrapd
> framework.
> Define a default trap handler, called for *all* incoming traps.
ok, so far so good.
> That handler should take the trap OID (which is one of the input
> parameters), do a read_objid() lookup, and check whether the result
> had a trailing numeric subidentifier.
After a few experiments and if I understand you correctly, would this
work as:
void
default_handler(const oid *objid_rcvd_in_trap, size_t len)
{
char oid_buf[256];
oid oid_out[MAX_OID_LEN];
size_t oid_out_len;
snprint_objid(oid_buf, sizeof(oid_buf), objid_rcvd_in_trap, len);
read_objid(oid_buf, oid_out, &oid_out_len);
if(oid_out_len < len) {
/* failure, discard */
} else {
/* success, move on */
}
}
> If it does, then return without doing any more processing.
> Otherwise, it would continue with whatever acknowledgements, etc
> you needed to do.
>
> That's perfectly possible with the current Net-SNMP toolkit. I
> don't
> think you need to add any new APIs.
>
thanks,
mrl
P.S: I dropped he first part of the email since it seems it isn't
relevant to what I wan't to achieve.
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