Re: SNMP Set is getting Failed

On 18 January 2011 08:09, Kumar Sanjay-XJD784
<[email protected]> wrote:
> 4. output of snmpd:
>  MODE_SET_RESERVE1 :Table Details are Empty->
>      Fun:ccAuditLoggingCfgTable_handler Line:272

OK - so let's have a look at the code that triggers this message:

    case MODE_SET_RESERVE1:
        table_entry = netsnmp_extract_iterator_context(request);
        table_info  = netsnmp_extract_table_info(      request);

At this point, 'table_info' contains information about which column
of the table is to be updated,  and 'table_entry' has the row of the
table which it should be set in.

   But remember that you are trying to create a *new* row in the table,
so there won't yet be a matching row.   (And if there is, then you can't
create it again!)

   So what value do you think that 'table_entry' will have at this point?


Back to the code:

	    if(NULL == table_info || NULL == table_entry)
                return -1;

What does this mean?

   "If we don't have details of which column is being set  (i.e.
something's gone wrong)
    or there isn't currently a row in the table  (because it hasn't
been created yet),
    then return the (invalid) error -1"

Think about that for a moment.
Does this feel the correct error handling for this situation?
What's wrong with it?

So what *should* this error block be checking?

Dave

PS: the correct error to indicate "something has gone wrong" is SNMP_ERR_GENERR,
       not -1


	    	snmp_log( LOG_ERR,"\n MODE_SET_RESERVE1 :Table Details are
Empty-> Fun:%s Line:%d \n", __func__, __LINE__);
		return -1;
	    }


being set
varbind
>  MODE_SET_FREE :Table Details are Empty->
> Fun:ccAuditLoggingCfgTable_handler Line:354
>
> *******snmpd  is NOT crashing NOW ******
>
> 5. I have attached the dot.c and dot.h file, also snmpd.conf for the
> reference.
>
> Questions:
>        NOT able to add a new row in the table ?
> Could you help me
>
> Thanks,
> sanjay
>
>
>
> -----Original Message-----
> From: [email protected] [mailto:[email protected]] On
> Behalf Of Dave Shield
> Sent: Monday, January 17, 2011 6:13 PM
> To: Kumar Sanjay-XJD784
> Cc: Net-snmp-users
> Subject: Re: SNMP Set is getting Failed
>
> On 17 January 2011 11:47, Kumar Sanjay-XJD784
> <[email protected]> wrote:
>>  One of main issue I think set command go doesn't to "RESERVE1"
>
> Now I'm confused.
> You started by saying that the agent *did* call Reserve1, and then Free.
> Now you are saying that the agent does *not* call the Reserve1 pass
>
> Which is it?
>
>
>> I go directly to "FREE"
>>
>> If possibe can you give the some possible cause of ERROR ??
>
> Not without the information that I've asked for.
>
> You have various 'snmp_log()' statements in your handler.
> What do these report when you issue the SET request?
>
> Let's start from the beginning.
> Please do the following:
>
>    * shut down the agent
>
>    * restart the agent using the command
>        snmpd -f -Le
>
>    * in another window, issue the command
>        snmpset  .....  ccAuditLogRowStatus.\"xyz\".127.0.0.1  i  4
>
> (using whatever version/authentication settings are appropriate for your
> configuration).
>
> a)  What is the response to the 'snmpset' command?
> b)  What is the (full) output of the 'snmpd' command?
>
>
> Dave
>
> ______________________________________________________________________
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