inetcidrroutetable_interface.c

开发snmp的开发包有两个开放的SNMP开发库

/**
 * @internal
 * wrapper
 */
static int
_mfd_inetCidrRouteTable_pre_request(netsnmp_mib_handler *handler,
                                    netsnmp_handler_registration *reginfo,
                                    netsnmp_agent_request_info
                                    *agtreq_info,
                                    netsnmp_request_info *requests)
{
    int             rc;

    DEBUGMSGTL(("internal:inetCidrRouteTable:_mfd_inetCidrRouteTable_pre_request", "called\n"));

    if (1 != netsnmp_row_merge_status_first(reginfo, agtreq_info)) {
        DEBUGMSGTL(("internal:inetCidrRouteTable",
                    "skipping additional pre_request\n"));
        return SNMP_ERR_NOERROR;
    }

    rc = inetCidrRouteTable_pre_request(inetCidrRouteTable_if_ctx.
                                        user_ctx);
    if (MFD_SUCCESS != rc) {
        /*
         * nothing we can do about it but log it
         */
        DEBUGMSGTL(("inetCidrRouteTable", "error %d from "
                    "inetCidrRouteTable_pre_request\n", rc));
        netsnmp_request_set_error_all(requests, SNMP_VALIDATE_ERR(rc));
    }

    return SNMP_ERR_NOERROR;
}                               /* _mfd_inetCidrRouteTable_pre_request */

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

    DEBUGMSGTL(("internal:inetCidrRouteTable:_mfd_inetCidrRouteTable_post_request", "called\n"));

    /*
     * release row context, if deleted
     */
    if (rowreq_ctx && (rowreq_ctx->rowreq_flags & MFD_ROW_DELETED))
        inetCidrRouteTable_release_rowreq_ctx(rowreq_ctx);

    /*
     * wait for last call before calling user
     */
    if (1 != netsnmp_row_merge_status_last(reginfo, agtreq_info)) {
        DEBUGMSGTL(("internal:inetCidrRouteTable",
                    "waiting for last post_request\n"));
        return SNMP_ERR_NOERROR;
    }

    packet_rc = netsnmp_check_all_requests_error(agtreq_info->asp, 0);
    if ((MFD_SUCCESS != packet_rc) && inetCidrRouteTable_dirty_get()) {
        /*
         * we shouldn't get here. the undo steps should also clear
         * the dirty flags.
         */
        snmp_log(LOG_WARNING,
                 "inetCidrRouteTable dirty flag set in post_request "
                 "but status != SUCCESS.\n");
    }

    rc = inetCidrRouteTable_post_request(inetCidrRouteTable_if_ctx.
                                         user_ctx, packet_rc);
    if (MFD_SUCCESS != rc) {
        /*
         * nothing we can do about it but log it
         */
        DEBUGMSGTL(("inetCidrRouteTable", "error %d from "
                    "inetCidrRouteTable_post_request\n", rc));
    }

    return SNMP_ERR_NOERROR;
}                               /* _mfd_inetCidrRouteTable_post_request */

/**
 * @internal
 * wrapper
 */
static inetCidrRouteTable_rowreq_ctx *
_mfd_inetCidrRouteTable_rowreq_from_index(netsnmp_index * oid_idx,
                                          int *rc_ptr)
{
    inetCidrRouteTable_rowreq_ctx *rowreq_ctx;
    inetCidrRouteTable_mib_index mib_idx;
    int             rc;

    DEBUGMSGTL(("internal:inetCidrRouteTable:_mfd_inetCidrRouteTable_rowreq_from_index", "called\n"));

    if (NULL == rc_ptr)
        rc_ptr = &rc;
    *rc_ptr = MFD_SUCCESS;

    memset(&mib_idx, 0x0, sizeof(mib_idx));

    /*
     * try to parse oid
     */
    *rc_ptr = inetCidrRouteTable_index_from_oid(oid_idx, &mib_idx);
    if (MFD_SUCCESS != *rc_ptr) {
        DEBUGMSGT(("inetCidrRouteTable", "error parsing index\n"));
        return NULL;
    }

    /*
     * allocate new context
     */
    rowreq_ctx = inetCidrRouteTable_allocate_rowreq_ctx(NULL, NULL);
    if (NULL == rowreq_ctx) {
        *rc_ptr = MFD_ERROR;
        return NULL;            /* msg already logged */
    }

    memcpy(&rowreq_ctx->tbl_idx, &mib_idx, sizeof(mib_idx));

    /*
     * check indexes
     */
    *rc_ptr = _inetCidrRouteTable_check_indexes(rowreq_ctx);
    if (MFD_SUCCESS != *rc_ptr) {
        netsnmp_assert((*rc_ptr == SNMP_ERR_NOCREATION) ||
                       (*rc_ptr == SNMP_ERR_INCONSISTENTNAME));
        inetCidrRouteTable_release_rowreq_ctx(rowreq_ctx);
        return NULL;
    }

    /*
     * 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_inetCidrRouteTable_rowreq_from_index */


/**
 * @internal
 * wrapper
 */
static int
_mfd_inetCidrRouteTable_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;
    inetCidrRouteTable_rowreq_ctx *rowreq_ctx =
        netsnmp_container_table_row_extract(requests);

    DEBUGMSGTL(("internal:inetCidrRouteTable:_mfd_inetCidrRouteTable_object_lookup", "called\n"));

    /*
     * get our context from mfd
     * inetCidrRouteTable_interface_ctx *if_ctx =
     *             (inetCidrRouteTable_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_inetCidrRouteTable_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
        inetCidrRouteTable_row_prep(rowreq_ctx);

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

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

    DEBUGMSGTL(("internal:inetCidrRouteTable:_mfd_inetCidrRouteTable_get_column", "called for %d\n", column));


    netsnmp_assert(NULL != rowreq_ctx);

    switch (column) {

        /*
         * inetCidrRouteIfIndex(7)/InterfaceIndexOrZero/ASN_INTEGER/long(long)//l/A/W/e/R/d/H 
         */
    case COLUMN_INETCIDRROUTEIFINDEX:
        var->val_len = sizeof(long);
        var->type = ASN_INTEGER;
        rc = inetCidrRouteIfIndex_get(rowreq_ctx,
                                      (long *) var->val.string);
        break;

        /*
         * inetCidrRouteType(8)/INTEGER/ASN_INTEGER/long(u_long)//l/A/W/E/r/d/h 
         */
    case COLUMN_INETCIDRROUTETYPE:
        var->val_len = sizeof(u_long);
        var->type = ASN_INTEGER;
        rc = inetCidrRouteType_get(rowreq_ctx, (u_long *) var->val.string);
        break;

        /*
         * inetCidrRouteProto(9)/IANAipRouteProtocol/ASN_INTEGER/long(u_long)//l/A/w/E/r/d/h 
         */
    case COLUMN_INETCIDRROUTEPROTO:
        var->val_len = sizeof(u_long);
        var->type = ASN_INTEGER;
        rc = inetCidrRouteProto_get(rowreq_ctx,
                                    (u_long *) var->val.string);
        break;

        /*
         * inetCidrRouteAge(10)/GAUGE/ASN_GAUGE/u_long(u_long)//l/A/w/e/r/d/h 
         */
    case COLUMN_INETCIDRROUTEAGE:
        var->val_len = sizeof(u_long);
        var->type = ASN_GAUGE;
        rc = inetCidrRouteAge_get(rowreq_ctx, (u_long *) var->val.string);
        break;

        /*
         * inetCidrRouteNextHopAS(11)/InetAutonomousSystemNumber/ASN_UNSIGNED/u_long(u_long)//l/A/W/e/r/D/H 
         */
    case COLUMN_INETCIDRROUTENEXTHOPAS:
        var->val_len = sizeof(u_long);
        var->type = ASN_UNSIGNED;
        rc = inetCidrRouteNextHopAS_get(rowreq_ctx,
                                        (u_long *) var->val.string);
        break;

        /*
         * inetCidrRouteMetric1(12)/INTEGER32/ASN_INTEGER/long(long)//l/A/W/e/r/D/h 
         */
    case COLUMN_INETCIDRROUTEMETRIC1:
        var->val_len = sizeof(long);
        var->type = ASN_INTEGER;
        rc = inetCidrRouteMetric1_get(rowreq_ctx,
                                      (long *) var->val.string);
        break;

        /*
         * inetCidrRouteMetric2(13)/INTEGER32/ASN_INTEGER/long(long)//l/A/W/e/r/D/h 
         */
    case COLUMN_INETCIDRROUTEMETRIC2:
        var->val_len = sizeof(long);
        var->type = ASN_INTEGER;
        rc = inetCidrRouteMetric2_get(rowreq_ctx,
                                      (long *) var->val.string);
        break;

        /*
         * inetCidrRouteMetric3(14)/INTEGER32/ASN_INTEGER/long(long)//l/A/W/e/r/D/h 
         */
    case COLUMN_INETCIDRROUTEMETRIC3:
        var->val_len = sizeof(long);
        var->type = ASN_INTEGER;
        rc = inetCidrRouteMetric3_get(rowreq_ctx,
                                      (long *) var->val.string);
        break;

        /*
         * inetCidrRouteMetric4(15)/INTEGER32/ASN_INTEGER/long(long)//l/A/W/e/r/D/h 
         */
    case COLUMN_INETCIDRROUTEMETRIC4:
        var->val_len = sizeof(long);
        var->type = ASN_INTEGER;
        rc = inetCidrRouteMetric4_get(rowreq_ctx,
                                      (long *) var->val.string);
        break;

        /*
         * inetCidrRouteMetric5(16)/INTEGER32/ASN_INTEGER/long(long)//l/A/W/e/r/D/h 
         */
    case COLUMN_INETCIDRROUTEMETRIC5:
        var->val_len = sizeof(long);
        var->type = ASN_INTEGER;
        rc = inetCidrRouteMetric5_get(rowreq_ctx,
                                      (long *) var->val.string);
        break;

        /*
         * inetCidrRouteStatus(17)/RowStatus/ASN_INTEGER/long(u_long)//l/A/W/E/r/d/h 
         */
    case COLUMN_INETCIDRROUTESTATUS:
        var->val_len = sizeof(u_long);
        var->type = ASN_INTEGER;
        rc = inetCidrRouteStatus_get(rowreq_ctx,
                                     (u_long *) var->val.string);
        break;

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

    return rc;
}                               /* _inetCidrRouteTable_get_column */

int
_mfd_inetCidrRouteTable_get_values(netsnmp_mib_handler *handler,
                                   netsnmp_handler_registration *reginfo,
                                   netsnmp_agent_request_info *agtreq_info,
                                   netsnmp_request_info *requests)
{
    inetCidrRouteTable_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:inetCidrRouteTable:_mfd_inetCidrRouteTable_get_values", "called\n"));

    netsnmp_assert(NULL != rowreq_ctx);

    for (; requests; requests = requests->next) {