Re: Getting Too Long Error

The version with which you compiled the net-snmp , will be your default snmp
version.

In your case , you did not mention the snmp version while compiling the
agent , hence it will take SNMP_DEFAULT_VERSION  -1 as the value.

Please correct me , If am wrong.

On Fri, Jun 20, 2008 at 1:43 PM, Rucha <[email protected]>
wrote:

>  I have created PDU using  following API
>
>
>
>  pdu = snmp_pdu_create(SNMP_MSG_GET);
>
>
>
> Doesn't it populate  version by default ?
>
>
>
> Regards,
>
> Rucha
>
>
>
> *From:* Pranesh Kulkarni [mailto:[email protected]]
> *Sent:* Friday, June 20, 2008 12:11 PM
> *To:* Rucha
> *Cc:* Dave Shield; [email protected]
>
> *Subject:* Re: Getting Too Long Error
>
>
>
> I think PDU is malformed as Dave said , ...
>
> Check version , its stating that it  -1 and errstat and errindex as also -1
> .
>
>
>  On Fri, Jun 20, 2008 at 11:41 AM, Rucha <[email protected]>
> wrote:
>
> Hi Dave,
>
> Here is the dump of pdu.
>
> (gdb) p pdu
> $1 = (netsnmp_pdu *) 0x951b398
> (gdb) p *$1
> $2 = {version = -1, command = 160, reqid = 713309340, msgid = 1415423209,
> transid = 0, sessid = 0, errstat = -1,
>  errindex = -1, time = 0, flags = 0, securityModel = -1, securityLevel = 0,
> msgParseModel = 0, transport_data = 0x0,
>  transport_data_length = 0, tDomain = 0x0, tDomainLen = 0, variables = 0x0,
> community = 0x0, community_len = 0,
>  enterprise = 0x0, enterprise_length = 0, trap_type = 0, specific_type = 0,
> agent_addr = "\000\000\000",
>  contextEngineID = 0x0, contextEngineIDLen = 0, contextName = 0x0,
> contextNameLen = 0, securityEngineID = 0x0,
>  securityEngineIDLen = 0, securityName = 0x0, securityNameLen = 0, priority
> = 0, range_subid = 0, securityStateRef = 0x0}
>
> 135              int length = sizeof(pdu);
> (gdb) n
> 137              printf("PDU Length = %d\n", length);
> (gdb) n
> PDU Length = 4
> 139         status = snmp_synch_response(ss, pdu, &response);
> (gdb) p length
> $4 = 4
>
> Regards,
> Rucha
>
>
> -----Original Message-----
> From: [email protected] [mailto:[email protected]] On
> Behalf Of Dave Shield
> Sent: Thursday, June 19, 2008 8:18 PM
> To: Rucha
> Cc: Pranesh Kulkarni; [email protected]
> Subject: Re: Getting Too Long Error
>
> 2008/6/19 Rucha <[email protected]>:
> > I checked the size of pdu which I am sending, its size of just 4bytes.
>
> An SNMP PDU of just 4 bytes!!?
> Can you please post a packet dump of this request.
>
>
> > Any other reason for getting this error ?
>
> Given that a  GET PDU will typically be at *least* 30 bytes in size,
> and the absolute minimum size of a completely empty GET
> request is (I think) 18 bytes - if your GET request is just 4 bytes,
> then it's almost certainly invalid.
>   If it's malformed, then the parsing code might well be reading
> the length as over-size, and returning a tooLong error.
>
>
> Dave
>
>
>

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