plz help me

hi
this is my code where should intialize the table and how please  help me  i
am new to this net snmp
code
/*
 * Note: this file originally auto-generated by mib2c using
 *  : mib2c.iterate.conf,v 5.19 2006/09/07 16:17:35 dts12 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 "dot3OamTable.h"

struct dot3OamTable_entry {
    /*
     * Index values
     */
    long            oamIndex;
    /*
     * Column values
     */
    long            dot3OamAdminState;
    long            old_dot3OamAdminState;
    u_long          dot3OamMaxOamPduSize;
    /*
     * Illustrate using a simple linked list
     */
    int             valid;
    struct dot3OamTable_entry *next;
};
struct dot3OamTable_entry *dot3OamTable_head;
/** Initializes the dot3OamTable module */
void
init_dot3OamTable(void)
{
    /*
     * here we initialize all the tables we're planning on supporting
     */
    initialize_table_dot3OamTable();
}
/** Initialize the dot3OamTable table by defining its contents and how it's
structured */

void
initialize_table_dot3OamTable(void)
{
    static oid      dot3OamTable_oid[] = { 1, 3, 6, 1, 2, 1, 20291, 1, 1 };
    size_t          dot3OamTable_oid_len = OID_LENGTH(dot3OamTable_oid);
    netsnmp_handler_registration *reg;
    netsnmp_iterator_info *iinfo;
    netsnmp_table_registration_info *table_info;

    reg =netsnmp_create_handler_registration("dot3OamTable",
                                            dot3OamTable_handler,
                                            dot3OamTable_oid,
                                            dot3OamTable_oid_len,
                                            HANDLER_CAN_RWRITE);

    table_info = SNMP_MALLOC_TYPEDEF(netsnmp_table_registration_info);
    netsnmp_table_helper_add_indexes(table_info, ASN_INTEGER,   /* index:
oamIndex */
                                     0);
    table_info->min_column = COLUMN_DOT3OAMADMINSTATE;
    table_info->max_column = COLUMN_DOT3OAMMAXOAMPDUSIZE;

    iinfo = SNMP_MALLOC_TYPEDEF(netsnmp_iterator_info);
    iinfo->get_first_data_point = dot3OamTable_get_first_data_point;
    iinfo->get_next_data_point = dot3OamTable_get_next_data_point;
    iinfo->table_reginfo = table_info;
    netsnmp_register_table_iterator(reg, iinfo);
    /*
     * Initialise the contents of the table here*/
}
dot3OamTable_createEntry(long oamIndex)
{
struct dot3OamTable_entry *entry;

    entry = SNMP_MALLOC_TYPEDEF(struct dot3OamTable_entry);
    if (!entry)
        return NULL;

    entry->oamIndex = oamIndex;
    entry->next = dot3OamTable_head;
    dot3OamTable_head = entry;
    return entry;
}

/*
 * remove a row from the table
 */
void
dot3OamTable_removeEntry(struct dot3OamTable_entry *entry)
{
    struct dot3OamTable_entry *ptr, *prev;

    if (!entry)
        return;                 /* Nothing to remove */

    for (ptr = dot3OamTable_head, prev = NULL;
         ptr != NULL; prev = ptr, ptr = ptr->next) {
        if (ptr == entry)
            break;
    }
    if (!ptr)
        return;                 /* Can't find it */

    if (prev == NULL)
        dot3OamTable_head = ptr->next;
    else
        prev->next = ptr->next;

    SNMP_FREE(entry);           /* XXX - release any other internal
resources */
}
netsnmp_variable_list *
dot3OamTable_get_first_data_point(void **my_loop_context,
                                  void **my_data_context,
                                  netsnmp_variable_list * put_index_data,
                                  netsnmp_iterator_info *mydata)
{
    *my_loop_context = dot3OamTable_head;
    return dot3OamTable_get_next_data_point(my_loop_context,
                                            my_data_context,
                                            put_index_data, mydata);
}

netsnmp_variable_list *
dot3OamTable_get_next_data_point(void **my_loop_context,
                                 void **my_data_context,
                                 netsnmp_variable_list * put_index_data,
                                 netsnmp_iterator_info *mydata)
{
    struct dot3OamTable_entry *entry =
        (struct dot3OamTable_entry *) *my_loop_context;
    netsnmp_variable_list *idx = put_index_data;

    if (entry) {
        snmp_set_var_typed_integer(idx, ASN_INTEGER, entry->oamIndex);
        idx = idx->next_variable;
        *my_data_context = (void *) entry;
        *my_loop_context = (void *) entry->next;
        return put_index_data;
    } else {
            return NULL;
    }
}


/** handles requests for the dot3OamTable table */
int
dot3OamTable_handler(netsnmp_mib_handler *handler,
                     netsnmp_handler_registration *reginfo,
                     netsnmp_agent_request_info *reqinfo,
                     netsnmp_request_info *requests)
{

    netsnmp_request_info *request;
    netsnmp_table_request_info *table_info;
    struct dot3OamTable_entry *table_entry;

    switch (reqinfo->mode) {
        /*
         * Read-support (also covers GetNext requests)
         */
    case MODE_GET:
        for (request = requests; request; request = request->next) {
            table_entry = (struct dot3OamTable_entry *)
                netsnmp_extract_iterator_context(request);
            table_info = netsnmp_extract_table_info(request);

            switch (table_info->colnum) {
            case COLUMN_DOT3OAMADMINSTATE:
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER,
                                           table_entry->dot3OamAdminState);
                break;
            case COLUMN_DOT3OAMMAXOAMPDUSIZE:
                snmp_set_var_typed_integer(request->requestvb,
                                           ASN_UNSIGNED,
                                           table_entry->
                                           dot3OamMaxOamPduSize);
                break;
                  default:
                /*
                 * An unsupported/unreadable column (if applicable)
                 */
                snmp_set_var_typed_value(request->requestvb,
                                         SNMP_NOSUCHOBJECT, NULL, 0);
            }
        }
        break;

        /*
         * Write-support
         */
    case MODE_SET_RESERVE1:
        for (request = requests; request; request = request->next) {
            table_entry = (struct dot3OamTable_entry *)
                netsnmp_extract_iterator_context(request);
            table_info = netsnmp_extract_table_info(request);

            switch (table_info->colnum) {
            case COLUMN_DOT3OAMADMINSTATE:
                /*
                 * or possibly 'netsnmp_check_vb_int_range'
                 */
                ret = netsnmp_check_vb_int(request->requestvb);
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            default:
                netsnmp_set_request_error(reqinfo, request,
                                          SNMP_ERR_NOTWRITABLE);
                return SNMP_ERR_NOERROR;
            }
        }
        break;

     case MODE_SET_RESERVE2:
        break;

    case MODE_SET_FREE:
        break;

    case MODE_SET_ACTION:
        for (request = requests; request; request = request->next) {
            table_entry = (struct dot3OamTable_entry *)
                netsnmp_extract_iterator_context(request);
            table_info = netsnmp_extract_table_info(request);

            switch (table_info->colnum) {
            case COLUMN_DOT3OAMADMINSTATE:
                table_entry->old_dot3OamAdminState =
                    table_entry->dot3OamAdminState;
                table_entry->dot3OamAdminState =
                    *request->requestvb->val.integer;
                break;
            }
        }
        break;
    case MODE_SET_UNDO:
        for (request = requests; request; request = request->next) {
            table_entry = (struct dot3OamTable_entry *)
                netsnmp_extract_iterator_context(request);
            table_info = netsnmp_extract_table_info(request);
            switch (table_info->colnum) {
            case COLUMN_DOT3OAMADMINSTATE:
                    table_entry->dot3OamAdminState =
                      table_entry->old_dot3OamAdminState;
                      table_entry->old_dot3OamAdminState = 0;
                break;
               }
          }
      case MODE_SET_COMMIT:
        break;
      }
    return SNMP_ERR_NOERROR;
}

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