Table problem

Paraskevopoulos Pavlos <[email protected]> Thu, 06 Apr 2006 12:47:02 +0300

Newsgroups	gmane.network.net-snmp.user
Message-ID	<[email protected]>

Hi to all,

I am new to net-snmp and I have a problem accessing the data of a table.
I have already noticed the previous discussion indexed "table problems",
but I followed the rule init_FILENAME and I still have problem.
I ran mib2c.create-dataset.conf on my MIB file. The .c and .h files are
attached to the mail. I tried to follow the example given in data_set.c

The table in the MIB is of the form

intracomTable OBJECT-TYPE
    SYNTAX SEQUENCE OF IntracomTableEntry
    MAX-ACCESS not-accessible
    STATUS current
    DESCRIPTION ""
    ::= { F5000grt 2 }
   
intracomTableEntry OBJECT-TYPE
    SYNTAX IntracomTableContent
    MAX-ACCESS not-accessible
    STATUS current
    DESCRIPTION ""
    INDEX { intracomTableId }
    ::= { intracomTable 1 }

IntracomTableEntry ::= SEQUENCE {
    intracomTableId OCTET STRING,
    intracomTableContent1 OCTET STRING,
    intracomTableContent2 OCTET STRING
}

intracomTableId OBJECT-TYPE
    SYNTAX OCTET STRING ( SIZE (1..32))
    MAX-ACCESS not-accessible
    STATUS current
    DESCRIPTION ""
    ::= { intracomTableEntry 1 }

intracomTableContent1 OBJECT-TYPE
    SYNTAX OCTET STRING
    MAX-ACCESS read-create
    STATUS current
    DESCRIPTION ""
    ::= { intracomTableEntry 2 }

intracomTableContent2 OBJECT-TYPE
    SYNTAX OCTET STRING
    MAX-ACCESS read-create
    STATUS current
    DESCRIPTION ""
    ::= { intracomTableEntry 3 }

the snmptranslate works fine.


I have no problem at compilation, but as soon as I start the snmp
daemon, I can see all the debugging related to intracomTable.
However, the snmwalk does not work properly.
Giving snmpwalk -v2c -c public localhost intracomTable returns
INTRACOM-F5000-VOIPV1-MIB::intracomTable = No Such Object available on
this agent at this OID

I will appreciate any idea/help, because I am stucked.
Thank you in advance,

Pavlos

intracomTable.c (text/x-csrc, 4.2 KB)

/*
 * Note: this file originally auto-generated by mib2c using
 *        : mib2c.create-dataset.conf,v 5.4 2004/02/02 19:06:53 rstory Exp $
 */

#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
#include "intracomTable.h"

/** Initialize the intracomTable table by defining its contents and how it's structured */
void
initialize_table_intracomTable(void)
{
    static oid      intracomTable_oid[] = { 1, 3, 6, 1, 4, 1, 1807, 1, 2 };
    size_t          intracomTable_oid_len = OID_LENGTH(intracomTable_oid);
    netsnmp_table_data_set *table_set;
	netsnmp_table_row *row;
	int r;
    /*
     * create the table structure itself 
     */
    table_set = netsnmp_create_table_data_set("intracomTable");

    /*
     * comment this out or delete if you don't support creation of new rows 
     */
    table_set->allow_creation = 1;

    /***************************************************
     * Adding indexes
     */
    DEBUGMSGTL(("initialize_table_intracomTable",
                "adding indexes to table intracomTable\n"));
    netsnmp_table_dataset_add_index(table_set, ASN_OCTET_STR);

    DEBUGMSGTL(("initialize_table_intracomTable",
                "adding column types to table intracomTable\n"));
    netsnmp_table_set_multi_add_default_row(table_set,
                                            COLUMN_INTRACOMTABLEID,
                                            ASN_OCTET_STR, 0, NULL, 0,
                                            COLUMN_INTRACOMTABLECONTENT1,
                                            ASN_OCTET_STR, 1, NULL, 0,
                                            COLUMN_INTRACOMTABLECONTENT2,
                                            ASN_OCTET_STR, 1, NULL, 0, 0);

    /*
     * registering the table with the master agent 
     */
    /*
     * note: if you don't need a subhandler to deal with any aspects
     * of the request, change intracomTable_handler to "NULL" 
     */
    netsnmp_register_table_data_set(netsnmp_create_handler_registration
                                    ("intracomTable",
                                     intracomTable_handler,
                                     intracomTable_oid,
                                     intracomTable_oid_len,
                                     HANDLER_CAN_RWRITE), table_set, NULL);
									 
	row = netsnmp_create_table_data_row();
	if (row == NULL)
	    DEBUGMSGTL(("initialize_table_intracomTable",
    	            "ERROR 1\n"));
			
	netsnmp_table_row_add_index(row, ASN_OCTET_STR, "f5000", strlen("f5000"));
		
	r = netsnmp_set_row_column(row, 2, ASN_OCTET_STR, "ppar", strlen("ppar"));
	if (r != SNMPERR_SUCCESS)
		DEBUGMSGTL(("initialize_table_intracomTable",
    	            "ERROR 2\n"));
	r = netsnmp_mark_row_column_writable(row, 2, 1);
	if (r != SNMPERR_SUCCESS)
		DEBUGMSGTL(("initialize_table_intracomTable",
    	            "ERROR 3\n"));

	r = netsnmp_set_row_column(row, 3, ASN_OCTET_STR, "ptzi", strlen("ptzi"));
	if (r != SNMPERR_SUCCESS)
		DEBUGMSGTL(("initialize_table_intracomTable",
    	            "ERROR 4\n"));
	
	r = netsnmp_mark_row_column_writable(row, 3, 1);
	if (r != SNMPERR_SUCCESS)
		DEBUGMSGTL(("initialize_table_intracomTable",
    	            "ERROR 5\n"));

	netsnmp_table_dataset_add_row(table_set, row);

	netsnmp_register_auto_data_table(table_set, NULL);
}

/** Initializes the intracomTable module */
void
init_intracomTable(void)
{
		DEBUGMSGTL(("initialize_table_intracomTable",
    	            "1!!!\n"));

    /*
     * here we initialize all the tables we're planning on supporting 
     */
    initialize_table_intracomTable();
}

/** handles requests for the intracomTable table, if anything else needs to be done */
int
intracomTable_handler(netsnmp_mib_handler *handler,
                      netsnmp_handler_registration *reginfo,
                      netsnmp_agent_request_info *reqinfo,
                      netsnmp_request_info *requests)
{
	DEBUGMSGTL(("initialize_table_intracomTable",
    	            "2!!!\n"));
	
    /*
     * perform anything here that you need to do.  The requests have
     * already been processed by the master table_dataset handler, but
     * this gives you chance to act on the request in some other way
     * if need be. 
     */
    return SNMP_ERR_NOERROR;
}

intracomTable.h (text/x-chdr, 590 B)

/*
 * Note: this file originally auto-generated by mib2c using
 *  : mib2c.create-dataset.conf,v 5.4 2004/02/02 19:06:53 rstory Exp $
 */
#ifndef INTRACOMTABLE_H
#define INTRACOMTABLE_H

/*
 * function declarations 
 */
void            init_intracomTable(void);
void            initialize_table_intracomTable(void);
Netsnmp_Node_Handler intracomTable_handler;

/*
 * column number definitions for table intracomTable 
 */
#define COLUMN_INTRACOMTABLEID		1
#define COLUMN_INTRACOMTABLECONTENT1		2
#define COLUMN_INTRACOMTABLECONTENT2		3
#endif                          /* INTRACOMTABLE_H */