Re: working with tables...

#1 (**permalink**) 04-16-2008

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Thanks for the info Dave, I did the GET requests with the same results. I'm
kind of new to linux programming so could you please recommend me a
debugger, could Eclipse help me??? Another question, I used the
mib2c.iterate.conf mib2c file to generate the code. Is this the best
configuration file to used as a first approach to coding mibs tables? Should
I used mfd file??? My main goal is to keep my code as simple as possible

On Wed, Apr 16, 2008 at 3:29 AM, Dave Shield <D.T.Shield@liverpool.ac.uk>
wrote:

> On 16/04/2008, Alejandro Islas <alex.islas@gmail.com> wrote:
> > But when I try to read a table..the snmpd deamon crashes.
> > Could anyone give me an idea of where to
> > start to lookaround???
>
> One thing would be to identify exactly what triggers the crash.
> Does it fail on a GETNEXT of the first entry?
> On a GETNEXT of any of the four columns?
> On a GETNEXT of an internal row instance?
>
> What about GET requests for particular values?
> What about GET requests for missing values?
>
>
> Try running the agent under a debugger, and see where
> the crash occurs in the code.
>
>
>
> > Here is part of my mib file (one of the tables)...
>
> A few comments:
>
>
> > MonThreadsTable OBJECT-TYPE
> > SYNTAX SEQUENCE OF monThreadsEntry
>
> The name of the table must start with a lower case letter
> (monThreadsTable)
>
> The name of the type must start with an upper case letter
> And it's the name of the SEQUENCE type, not the Entry
> object. (MonThreadsEntry)
>
>
>
> > monThreadsEntry OBJECT-TYPE
> > SYNTAX monThreadsDetailsEntry
>
> The syntax of this object must match that of the
> monThreadsTable entry. Conventionally, this
> would be the same as the name of this MIB
> object, but capitalised (MonThreadsEntry)
>
>
>
> > monThreadsDetailsEntry ::=
> > SEQUENCE {
>
> MonThreadsEntry
>
>
>
> > IdThread OBJECT-TYPE
> > SYNTAX INTEGER
> > ACCESS read-only
>
> The index object should be "not-accessible".
>
>
> > ProcTime OBJECT-TYPE
> > MaxProcTime OBJECT-TYPE
> > ExecNumber OBJECT-TYPE
>
> These objects must start with a lower-case letter.
> Conventionally, you would normally use a common prefix,
> to make clear that they're all part of the same table.
>
> monThreadsProcTime
> monThreadsMaxProcTime
> monThreadsExecNumber
>
>
> Dave
>

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Thanks for the info Dave, I did the GET requests with the same results. I'm kind of new to linux programming so could you please recommend me a debugger, could Eclipse help me??? Another question, I used the mib2c.iterate.conf mib2c file to generate the code. Is this the best configuration file to used as a first approach to coding mibs tables? Should I used mfd file??? My main goal is to keep my code as simple as possible 
 <div class="gmail_quote">On Wed, Apr 16, 2008 at 3:29 AM, Dave Shield <<a href="mailto:D.T.Shield@liverpool.ac.uk">D.T.Shiel d@liverpool.ac.uk</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div class="Ih2E3d">On 16/04/2008, Alejandro Islas <<a href="mailto:alex.islas@gmail.com">alex.islas@gmai l.com</a>> wrote: 
> But when I try to read a table..the snmpd deamon crashes. 
</div><div class="Ih2E3d">> Could anyone give me an idea of where to 
> start to lookaround??? 
 
</div>One thing would be to identify exactly what triggers the crash. 
Does it fail on a GETNEXT of the first entry? 
On a GETNEXT of any of the four columns? 
On a GETNEXT of an internal row instance? 
 
What about GET requests for particular values? 
What about GET requests for missing values? 
 
 
Try running the agent under a debugger, and see where 
the crash occurs in the code. 
<div class="Ih2E3d"> 
 
 
> Here is part of my mib file (one of the tables)... 
 
</div>A few comments: 
<div class="Ih2E3d"> 
 
> MonThreadsTable OBJECT-TYPE 
>             SYNTAX         SEQUENCE OF monThreadsEntry 
 
</div>The name of the table must start with a lower case letter 
  (monThreadsTable) 
 
The name of the type must start with an upper case letter 
And it's the name of the SEQUENCE type, not the Entry 
object.      (MonThreadsEntry) 
<div class="Ih2E3d"> 
 
 
> monThreadsEntry OBJECT-TYPE 
>         SYNTAX      monThreadsDetailsEntry 
 
</div>The syntax of this object must match that of the 
monThreadsTable entry.    Conventionally, this 
would be the same as the name of this MIB 
object, but capitalised (MonThreadsEntry) 
 
 
 
> monThreadsDetailsEntry ::= 
>      SEQUENCE { 
 
MonThreadsEntry 
<div class="Ih2E3d"> 
 
 
> IdThread     OBJECT-TYPE 
>              SYNTAX INTEGER 
>             ACCESS  read-only 
 
</div>The index object should be "not-accessible". 
 
 
> ProcTime     OBJECT-TYPE 
> MaxProcTime     OBJECT-TYPE 
> ExecNumber    OBJECT-TYPE 
 
These objects must start with a lower-case letter. 
Conventionally, you would normally use a common prefix, 
to make clear that they're all part of the same table. 
 
monThreadsProcTime 
monThreadsMaxProcTime 
monThreadsExecNumber 
 
 
Dave 
</blockquote></div> 

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