ipcidrroutetable_interface.c

开发snmp的开发包有两个开放的SNMP开发库

    }

    /*
     * copy indexes
     */
    rowreq_ctx->oid_idx.len = oid_idx->len;
    memcpy(rowreq_ctx->oid_idx.oids, oid_idx->oids,
           oid_idx->len * sizeof(oid));

    return rowreq_ctx;
}                               /* _mfd_ipCidrRouteTable_rowreq_from_index */


/**
 * @internal
 * wrapper
 */
static int
_mfd_ipCidrRouteTable_object_lookup(netsnmp_mib_handler *handler,
                                    netsnmp_handler_registration *reginfo,
                                    netsnmp_agent_request_info
                                    *agtreq_info,
                                    netsnmp_request_info *requests)
{
    int             rc = SNMP_ERR_NOERROR;
    ipCidrRouteTable_rowreq_ctx *rowreq_ctx =
        netsnmp_container_table_row_extract(requests);

    DEBUGMSGTL(("internal:ipCidrRouteTable:_mfd_ipCidrRouteTable_object_lookup", "called\n"));

    /*
     * get our context from mfd
     * ipCidrRouteTable_interface_ctx *if_ctx =
     *             (ipCidrRouteTable_interface_ctx *)reginfo->my_reg_void;
     */

    if (NULL == rowreq_ctx) {
        netsnmp_table_request_info *tblreq_info;
        netsnmp_index   oid_idx;

        tblreq_info = netsnmp_extract_table_info(requests);
        if (NULL == tblreq_info) {
            snmp_log(LOG_ERR, "request had no table info\n");
            return MFD_ERROR;
        }

        /*
         * try create rowreq
         */
        oid_idx.oids = tblreq_info->index_oid;
        oid_idx.len = tblreq_info->index_oid_len;

        rowreq_ctx =
            _mfd_ipCidrRouteTable_rowreq_from_index(&oid_idx, &rc);
        if (MFD_SUCCESS == rc) {
            netsnmp_assert(NULL != rowreq_ctx);
            rowreq_ctx->rowreq_flags |= MFD_ROW_CREATED;
            /*
             * add rowreq_ctx to request data lists
             */
            netsnmp_container_table_row_insert(requests, (netsnmp_index *)
                                               rowreq_ctx);
        }
    }

    if (MFD_SUCCESS != rc)
        netsnmp_request_set_error_all(requests, rc);
    else
        ipCidrRouteTable_row_prep(rowreq_ctx);

    return SNMP_VALIDATE_ERR(rc);
}                               /* _mfd_ipCidrRouteTable_object_lookup */

/***********************************************************************
 *
 * GET processing
 *
 ***********************************************************************/
/*
 * @internal
 * Retrieve the value for a particular column
 */
NETSNMP_STATIC_INLINE int
_ipCidrRouteTable_get_column(ipCidrRouteTable_rowreq_ctx * rowreq_ctx,
                             netsnmp_variable_list * var, int column)
{
    int             rc = SNMPERR_SUCCESS;

    DEBUGMSGTL(("internal:ipCidrRouteTable:_mfd_ipCidrRouteTable_get_column", "called for %d\n", column));


    netsnmp_assert(NULL != rowreq_ctx);

    switch (column) {

        /*
         * (INDEX) ipCidrRouteDest(1)/IPADDR/ASN_IPADDRESS/u_long(u_long)//l/A/w/e/r/d/h 
         */
    case COLUMN_IPCIDRROUTEDEST:
        var->type = ASN_IPADDRESS;
        var->val_len = sizeof(u_long);
        (*var->val.integer) = rowreq_ctx->tbl_idx.ipCidrRouteDest;
        break;

        /*
         * (INDEX) ipCidrRouteMask(2)/IPADDR/ASN_IPADDRESS/u_long(u_long)//l/A/w/e/r/d/h 
         */
    case COLUMN_IPCIDRROUTEMASK:
        var->type = ASN_IPADDRESS;
        var->val_len = sizeof(u_long);
        (*var->val.integer) = rowreq_ctx->tbl_idx.ipCidrRouteMask;
        break;

        /*
         * (INDEX) ipCidrRouteTos(3)/INTEGER32/ASN_INTEGER/long(long)//l/A/w/e/R/d/h 
         */
    case COLUMN_IPCIDRROUTETOS:
        var->type = ASN_INTEGER;
        var->val_len = sizeof(long);
        (*var->val.integer) = rowreq_ctx->tbl_idx.ipCidrRouteTos;
        break;

        /*
         * (INDEX) ipCidrRouteNextHop(4)/IPADDR/ASN_IPADDRESS/u_long(u_long)//l/A/w/e/r/d/h 
         */
    case COLUMN_IPCIDRROUTENEXTHOP:
        var->type = ASN_IPADDRESS;
        var->val_len = sizeof(u_long);
        (*var->val.integer) = rowreq_ctx->tbl_idx.ipCidrRouteNextHop;
        break;

        /*
         * ipCidrRouteIfIndex(5)/INTEGER32/ASN_INTEGER/long(long)//l/A/W/e/r/D/h 
         */
    case COLUMN_IPCIDRROUTEIFINDEX:
        var->val_len = sizeof(long);
        var->type = ASN_INTEGER;
        rc = ipCidrRouteIfIndex_get(rowreq_ctx, (long *) var->val.string);
        break;

        /*
         * ipCidrRouteType(6)/INTEGER/ASN_INTEGER/long(u_long)//l/A/W/E/r/d/h 
         */
    case COLUMN_IPCIDRROUTETYPE:
        var->val_len = sizeof(u_long);
        var->type = ASN_INTEGER;
        rc = ipCidrRouteType_get(rowreq_ctx, (u_long *) var->val.string);
        break;

        /*
         * ipCidrRouteProto(7)/INTEGER/ASN_INTEGER/long(u_long)//l/A/w/E/r/d/h 
         */
    case COLUMN_IPCIDRROUTEPROTO:
        var->val_len = sizeof(u_long);
        var->type = ASN_INTEGER;
        rc = ipCidrRouteProto_get(rowreq_ctx, (u_long *) var->val.string);
        break;

        /*
         * ipCidrRouteAge(8)/INTEGER32/ASN_INTEGER/long(long)//l/A/w/e/r/D/h 
         */
    case COLUMN_IPCIDRROUTEAGE:
        var->val_len = sizeof(long);
        var->type = ASN_INTEGER;
        rc = ipCidrRouteAge_get(rowreq_ctx, (long *) var->val.string);
        break;

        /*
         * ipCidrRouteInfo(9)/OBJECTID/ASN_OBJECT_ID/oid(oid)//L/A/W/e/r/d/h 
         */
    case COLUMN_IPCIDRROUTEINFO:
        var->type = ASN_OBJECT_ID;
        rc = ipCidrRouteInfo_get(rowreq_ctx, (oid **) & var->val.string,
                                 &var->val_len);
        break;

        /*
         * ipCidrRouteNextHopAS(10)/INTEGER32/ASN_INTEGER/long(long)//l/A/W/e/r/D/h 
         */
    case COLUMN_IPCIDRROUTENEXTHOPAS:
        var->val_len = sizeof(long);
        var->type = ASN_INTEGER;
        rc = ipCidrRouteNextHopAS_get(rowreq_ctx,
                                      (long *) var->val.string);
        break;

        /*
         * ipCidrRouteMetric1(11)/INTEGER32/ASN_INTEGER/long(long)//l/A/W/e/r/D/h 
         */
    case COLUMN_IPCIDRROUTEMETRIC1:
        var->val_len = sizeof(long);
        var->type = ASN_INTEGER;
        rc = ipCidrRouteMetric1_get(rowreq_ctx, (long *) var->val.string);
        break;

        /*
         * ipCidrRouteMetric2(12)/INTEGER32/ASN_INTEGER/long(long)//l/A/W/e/r/D/h 
         */
    case COLUMN_IPCIDRROUTEMETRIC2:
        var->val_len = sizeof(long);
        var->type = ASN_INTEGER;
        rc = ipCidrRouteMetric2_get(rowreq_ctx, (long *) var->val.string);
        break;

        /*
         * ipCidrRouteMetric3(13)/INTEGER32/ASN_INTEGER/long(long)//l/A/W/e/r/D/h 
         */
    case COLUMN_IPCIDRROUTEMETRIC3:
        var->val_len = sizeof(long);
        var->type = ASN_INTEGER;
        rc = ipCidrRouteMetric3_get(rowreq_ctx, (long *) var->val.string);
        break;

        /*
         * ipCidrRouteMetric4(14)/INTEGER32/ASN_INTEGER/long(long)//l/A/W/e/r/D/h 
         */
    case COLUMN_IPCIDRROUTEMETRIC4:
        var->val_len = sizeof(long);
        var->type = ASN_INTEGER;
        rc = ipCidrRouteMetric4_get(rowreq_ctx, (long *) var->val.string);
        break;

        /*
         * ipCidrRouteMetric5(15)/INTEGER32/ASN_INTEGER/long(long)//l/A/W/e/r/D/h 
         */
    case COLUMN_IPCIDRROUTEMETRIC5:
        var->val_len = sizeof(long);
        var->type = ASN_INTEGER;
        rc = ipCidrRouteMetric5_get(rowreq_ctx, (long *) var->val.string);
        break;

        /*
         * ipCidrRouteStatus(16)/RowStatus/ASN_INTEGER/long(u_long)//l/A/W/E/r/d/h 
         */
    case COLUMN_IPCIDRROUTESTATUS:
        var->val_len = sizeof(u_long);
        var->type = ASN_INTEGER;
        rc = ipCidrRouteStatus_get(rowreq_ctx, (u_long *) var->val.string);
        break;

    default:
        snmp_log(LOG_ERR,
                 "unknown column %d in _ipCidrRouteTable_get_column\n",
                 column);
        break;
    }

    return rc;
}                               /* _ipCidrRouteTable_get_column */

int
_mfd_ipCidrRouteTable_get_values(netsnmp_mib_handler *handler,
                                 netsnmp_handler_registration *reginfo,
                                 netsnmp_agent_request_info *agtreq_info,
                                 netsnmp_request_info *requests)
{
    ipCidrRouteTable_rowreq_ctx *rowreq_ctx =
        netsnmp_container_table_row_extract(requests);
    netsnmp_table_request_info *tri;
    u_char         *old_string;
    void            (*dataFreeHook) (void *);
    int             rc;

    DEBUGMSGTL(("internal:ipCidrRouteTable:_mfd_ipCidrRouteTable_get_values", "called\n"));

    netsnmp_assert(NULL != rowreq_ctx);

    for (; requests; requests = requests->next) {
        /*
         * save old pointer, so we can free it if replaced
         */
        old_string = requests->requestvb->val.string;
        dataFreeHook = requests->requestvb->dataFreeHook;
        if (NULL == requests->requestvb->val.string) {
            requests->requestvb->val.string = requests->requestvb->buf;
            requests->requestvb->val_len =
                sizeof(requests->requestvb->buf);
        } else if (requests->requestvb->buf ==
                   requests->requestvb->val.string) {
            if (requests->requestvb->val_len !=
                sizeof(requests->requestvb->buf))
                requests->requestvb->val_len =
                    sizeof(requests->requestvb->buf);
        }

        /*
         * get column data
         */
        tri = netsnmp_extract_table_info(requests);
        if (NULL == tri)
            continue;

        rc = _ipCidrRouteTable_get_column(rowreq_ctx, requests->requestvb,
                                          tri->colnum);
        if (rc) {
            if (MFD_SKIP == rc) {
                requests->requestvb->type = SNMP_NOSUCHINSTANCE;
                rc = SNMP_ERR_NOERROR;
            }
        } else if (NULL == requests->requestvb->val.string) {
            snmp_log(LOG_ERR, "NULL varbind data pointer!\n");
            rc = SNMP_ERR_GENERR;
        }
        if (rc)
            netsnmp_request_set_error(requests, SNMP_VALIDATE_ERR(rc));

        /*
         * if the buffer wasn't used previously for the old data (i.e. it
         * was allcoated memory)  and the get routine replaced the pointer,
         * we need to free the previous pointer.
         */
        if (old_string && (old_string != requests->requestvb->buf) &&
            (requests->requestvb->val.string != old_string)) {
            if (dataFreeHook)
                (*dataFreeHook) (old_string);
            else
                free(old_string);
        }
    }                           /* for results */

    return SNMP_ERR_NOERROR;
}                               /* _mfd_ipCidrRouteTable_get_values */

NETSNMP_STATIC_INLINE int
_ipCidrRouteTable_check_indexes(ipCidrRouteTable_rowreq_ctx * rowreq_ctx)
{
    int             rc = SNMPERR_SUCCESS;

    DEBUGMSGTL(("internal:ipCidrRouteTable:_ipCidrRouteTable_check_indexes", "called\n"));

    netsnmp_assert(NULL != rowreq_ctx);


    /*
     * (INDEX) ipCidrRouteDest(1)/IPADDR/ASN_IPADDRESS/u_long(u_long)//l/A/w/e/r/d/h 
     */
    if (MFD_SUCCESS != rc)
        return rc;
    rc = ipCidrRouteDest_check_index(rowreq_ctx);
    if (MFD_SUCCESS != rc)
        return SNMP_ERR_NOCREATION;

    /*
     * (INDEX) ipCidrRouteMask(2)/IPADDR/ASN_IPADDRESS/u_long(u_long)//l/A/w/e/r/d/h 
     */
    if (MFD_SUCCESS != rc)
        return rc;
    rc = ipCidrRouteMask_check_index(rowreq_ctx);
    if (MFD_SUCCESS != rc)
        return SNMP_ERR_NOCREATION;

    /*
     * (INDEX) ipCidrRouteTos(3)/INTEGER32/ASN_INTEGER/long(long)//l/A/w/e/R/d/h 
     */
    /*
     * check defined range(s). 
     */
    if ((SNMPERR_SUCCESS == rc)
        && ((rowreq_ctx->tbl_idx.ipCidrRouteTos < 0)
            || (rowreq_ctx->tbl_idx.ipCidrRouteTos > 2147483647))
        ) {
        rc = SNMP_ERR_WRONGVALUE;
    }
    if (MFD_SUCCESS != rc)
        return rc;
    rc = ipCidrRouteTos_check_index(rowreq_ctx);
    if (MFD_SUCCESS != rc)
        return SNMP_ERR_NOCREATION;

    /*
     * (INDEX) ipCidrRouteNextHop(4)/IPADDR/ASN_IPADDRESS/u_long(u_long)//l/A/w/e/r/d/h 
     */
    if (MFD_SUCCESS != rc)
        return rc;
    rc = ipCidrRouteNextHop_check_index(rowreq_ctx);
    if (MFD_SUCCESS != rc)
        return SNMP_ERR_NOCREATION;

    /*
     * if individual parts look ok, check them as a whole
     */