ipv4interfacetable_interface.c

开发snmp的开发包有两个开放的SNMP开发库

            }
        }                       /* for results */
    }

    return SNMP_ERR_NOERROR;
}                               /* _mfd_ipv4InterfaceTable_undo_setup */

/**
 * @internal
 * undo setup
 */
int
_mfd_ipv4InterfaceTable_undo_cleanup(netsnmp_mib_handler *handler,
                                     netsnmp_handler_registration *reginfo,
                                     netsnmp_agent_request_info
                                     *agtreq_info,
                                     netsnmp_request_info *requests)
{
    ipv4InterfaceTable_rowreq_ctx *rowreq_ctx =
        netsnmp_container_table_row_extract(requests);
    int             rc;

    DEBUGMSGTL(("internal:ipv4InterfaceTable:_mfd_ipv4InterfaceTable_undo_cleanup", "called\n"));

    /*
     * failed row create in early stages has no rowreq_ctx
     */
    if (NULL == rowreq_ctx)
        return MFD_SUCCESS;

    /*
     * call user cleanup
     */
    rc = ipv4InterfaceTable_undo_cleanup(rowreq_ctx);
    if (MFD_SUCCESS != rc) {
        /*
         * nothing we can do about it but log it
         */
        DEBUGMSGTL(("ipv4InterfaceTable:mfd", "error %d from "
                    "ipv4InterfaceTable_undo_cleanup\n", rc));
    }

    /*
     * release undo context, if needed
     */
    _mfd_ifTable_undo_setup_release(rowreq_ctx);

    return SNMP_ERR_NOERROR;
}                               /* _mfd_ipv4InterfaceTable_undo_cleanup */

/*----------------------------------------------------------------------
 *
 * SET: Set values
 *
 *---------------------------------------------------------------------*/
/*
 * @internal
 * Set the value for a particular column
 */
NETSNMP_STATIC_INLINE int
_ipv4InterfaceTable_set_column(ipv4InterfaceTable_rowreq_ctx * rowreq_ctx,
                               netsnmp_variable_list * var, int column)
{
    int             rc = SNMPERR_SUCCESS;

    DEBUGMSGTL(("internal:ipv4InterfaceTable:_ipv4InterfaceTable_set_column", "called for %d\n", column));

    netsnmp_assert(NULL != rowreq_ctx);

    switch (column) {

        /*
         * ipv4InterfaceEnableStatus(3)/INTEGER/ASN_INTEGER/long(u_long)//l/A/W/E/r/d/h 
         */
    case COLUMN_IPV4INTERFACEENABLESTATUS:
        rowreq_ctx->column_set_flags |=
            COLUMN_IPV4INTERFACEENABLESTATUS_FLAG;
        rc = ipv4InterfaceEnableStatus_set(rowreq_ctx,
                                           *((u_long *) var->val.string));
        break;

    default:
        snmp_log(LOG_ERR,
                 "unknown column %d in _ipv4InterfaceTable_set_column\n",
                 column);
        rc = SNMP_ERR_GENERR;
        break;
    }

    return rc;
}                               /* _ipv4InterfaceTable_set_column */

int
_mfd_ipv4InterfaceTable_set_values(netsnmp_mib_handler *handler,
                                   netsnmp_handler_registration *reginfo,
                                   netsnmp_agent_request_info *agtreq_info,
                                   netsnmp_request_info *requests)
{
    ipv4InterfaceTable_rowreq_ctx *rowreq_ctx =
        netsnmp_container_table_row_extract(requests);
    netsnmp_table_request_info *tri;
    int             rc = SNMP_ERR_NOERROR;

    DEBUGMSGTL(("internal:ipv4InterfaceTable:_mfd_ipv4InterfaceTable_set_values", "called\n"));

    netsnmp_assert(NULL != rowreq_ctx);

    rowreq_ctx->column_set_flags = 0;
    for (; requests; requests = requests->next) {
        /*
         * set column data
         */
        tri = netsnmp_extract_table_info(requests);
        if (NULL == tri)
            continue;

        rc = _ipv4InterfaceTable_set_column(rowreq_ctx,
                                            requests->requestvb,
                                            tri->colnum);
        if (MFD_SUCCESS != rc) {
            DEBUGMSGTL(("ipv4InterfaceTable:mfd", "error %d from "
                        "ipv4InterfaceTable_set_column\n", rc));
            netsnmp_set_request_error(agtreq_info, requests,
                                      SNMP_VALIDATE_ERR(rc));
        }
    }                           /* for results */

    return SNMP_ERR_NOERROR;
}                               /* _mfd_ipv4InterfaceTable_set_values */

/*----------------------------------------------------------------------
 *
 * SET: commit
 *
 *---------------------------------------------------------------------*/
/**
 * @internal
 * commit the values
 */
int
_mfd_ipv4InterfaceTable_commit(netsnmp_mib_handler *handler,
                               netsnmp_handler_registration *reginfo,
                               netsnmp_agent_request_info *agtreq_info,
                               netsnmp_request_info *requests)
{
    int             rc;
    ipv4InterfaceTable_rowreq_ctx *rowreq_ctx =
        netsnmp_container_table_row_extract(requests);

    DEBUGMSGTL(("internal:ipv4InterfaceTable:_mfd_ipv4InterfaceTable_commit", "called\n"));

    netsnmp_assert(NULL != rowreq_ctx);

    rc = ipv4InterfaceTable_commit(rowreq_ctx);
    if (MFD_SUCCESS != rc) {
        DEBUGMSGTL(("ipv4InterfaceTable:mfd", "error %d from "
                    "ipv4InterfaceTable_commit\n", rc));
        netsnmp_request_set_error_all(requests, SNMP_VALIDATE_ERR(rc));
    }

    if (rowreq_ctx->rowreq_flags & MFD_ROW_DIRTY) {
        /*
         * if we successfully commited this row, set the dirty flag. Use the
         * current value + 1 (i.e. dirty = # rows changed).
         * this is checked in post_request...
         */
        ipv4InterfaceTable_dirty_set(ipv4InterfaceTable_dirty_get() + 1);       /* set table dirty flag */
    }

    return SNMP_ERR_NOERROR;
}

int
_mfd_ipv4InterfaceTable_undo_commit(netsnmp_mib_handler *handler,
                                    netsnmp_handler_registration *reginfo,
                                    netsnmp_agent_request_info
                                    *agtreq_info,
                                    netsnmp_request_info *requests)
{
    int             rc;
    ipv4InterfaceTable_rowreq_ctx *rowreq_ctx =
        netsnmp_container_table_row_extract(requests);

    DEBUGMSGTL(("internal:ipv4InterfaceTable:_mfd_ipv4InterfaceTable_undo_commit", "called\n"));

    netsnmp_assert(NULL != rowreq_ctx);

    if (rowreq_ctx->rowreq_flags & MFD_ROW_DIRTY) {
        u_int           d = ipv4InterfaceTable_dirty_get();

        netsnmp_assert(d != 0);
        if (d)
            ipv4InterfaceTable_dirty_set(d - 1);
    }

    rc = ipv4InterfaceTable_undo_commit(rowreq_ctx);
    if (MFD_SUCCESS != rc) {
        /*
         * nothing we can do about it but log it
         */
        DEBUGMSGTL(("ipv4InterfaceTable:mfd", "error %d from "
                    "ipv4InterfaceTable_undo_commit\n", rc));
    }

    if (rowreq_ctx->rowreq_flags & MFD_ROW_DIRTY) {
        snmp_log(LOG_WARNING,
                 "ipv4InterfaceTable row dirty flag still set after undo_commit\n");
        rowreq_ctx->rowreq_flags &= ~MFD_ROW_DIRTY;
    }

    return SNMP_ERR_NOERROR;
}                               /* _mfd_ipv4InterfaceTable_commit */

/*----------------------------------------------------------------------
 *
 * SET: Undo
 *
 *---------------------------------------------------------------------*/
/**
 * @internal
 * undo the value for a particular column
 */
NETSNMP_STATIC_INLINE int
_ipv4InterfaceTable_undo_column(ipv4InterfaceTable_rowreq_ctx * rowreq_ctx,
                                netsnmp_variable_list * var, int column)
{
    int             rc = SNMPERR_SUCCESS;

    DEBUGMSGTL(("internal:ipv4InterfaceTable:_ipv4InterfaceTable_undo_column", "called for %d\n", column));

    netsnmp_assert(NULL != rowreq_ctx);

    switch (column) {

        /*
         * ipv4InterfaceEnableStatus(3)/INTEGER/ASN_INTEGER/long(u_long)//l/A/W/E/r/d/h 
         */
    case COLUMN_IPV4INTERFACEENABLESTATUS:
        rc = ipv4InterfaceEnableStatus_undo(rowreq_ctx);
        break;

    default:
        snmp_log(LOG_ERR,
                 "unknown column %d in _ipv4InterfaceTable_undo_column\n",
                 column);
        break;
    }

    return rc;
}                               /* _ipv4InterfaceTable_undo_column */

int
_mfd_ipv4InterfaceTable_undo_values(netsnmp_mib_handler *handler,
                                    netsnmp_handler_registration *reginfo,
                                    netsnmp_agent_request_info
                                    *agtreq_info,
                                    netsnmp_request_info *requests)
{
    int             rc;
    ipv4InterfaceTable_rowreq_ctx *rowreq_ctx =
        netsnmp_container_table_row_extract(requests);
    netsnmp_table_request_info *tri;

    DEBUGMSGTL(("internal:ipv4InterfaceTable:_mfd_ipv4InterfaceTable_undo_values", "called\n"));

    netsnmp_assert(NULL != rowreq_ctx);

    rc = ipv4InterfaceTable_undo(rowreq_ctx);
    if (MFD_SUCCESS != rc) {
        /*
         * nothing we can do about it but log it
         */
        DEBUGMSGTL(("ipv4InterfaceTable:mfd", "error %d from "
                    "ipv4InterfaceTable_undo\n", rc));
    }

    for (; requests; requests = requests->next) {
        /*
         * set column data
         */
        tri = netsnmp_extract_table_info(requests);
        if (NULL == tri)
            continue;

        rc = _ipv4InterfaceTable_undo_column(rowreq_ctx,
                                             requests->requestvb,
                                             tri->colnum);
        if (MFD_SUCCESS != rc) {
            /*
             * nothing we can do about it but log it
             */
            DEBUGMSGTL(("ipv4InterfaceTable:mfd", "error %d from "
                        "ipv4InterfaceTable_undo_column\n", rc));
        }
    }                           /* for results */

    return SNMP_ERR_NOERROR;
}                               /* _mfd_ipv4InterfaceTable_undo_values */

/*----------------------------------------------------------------------
 *
 * SET: irreversible commit
 *
 *---------------------------------------------------------------------*/
/**
 * @internal
 * commit irreversible actions
 */
int
_mfd_ipv4InterfaceTable_irreversible_commit(netsnmp_mib_handler *handler, netsnmp_handler_registration
                                            *reginfo, netsnmp_agent_request_info
                                            *agtreq_info,
                                            netsnmp_request_info *requests)
{
    ipv4InterfaceTable_rowreq_ctx *rowreq_ctx =
        netsnmp_container_table_row_extract(requests);

    DEBUGMSGTL(("internal:ipv4InterfaceTable:_mfd_ipv4InterfaceTable_irreversible:commit", "called\n"));

    netsnmp_assert(NULL != rowreq_ctx);

    /*
     * check for and handle row creation/deletion
     * and update column exist flags...
     */
    if (rowreq_ctx->rowreq_flags & MFD_ROW_DELETED) {
        CONTAINER_REMOVE(ipv4InterfaceTable_if_ctx.container, rowreq_ctx);
    } else {
        if (rowreq_ctx->column_set_flags) {
            rowreq_ctx->column_set_flags = 0;
        }
    }

    return SNMP_ERR_NOERROR;
}                               /* _mfd_ipv4InterfaceTable_irreversible_commit */

/***********************************************************************
 *
 * DATA ACCESS
 *
 ***********************************************************************/
/**
 * @internal
 */
/**
 * @internal
 */
static void
_container_free(netsnmp_container *container)
{
    DEBUGMSGTL(("internal:ipv4InterfaceTable:_container_free",
                "called\n"));

    if (NULL == container) {
        snmp_log(LOG_ERR,
                 "invalid container in ipv4InterfaceTable_container_free\n");
        return;
    }

    /*
     * call user code
     */
    ipv4InterfaceTable_container_free(container);
}                               /* _container_free */

/**
 * @internal
 * initialize the container with functions or wrappers
 */
void
_ipv4InterfaceTable_container_init(ipv4InterfaceTable_interface_ctx *
                                   if_ctx)
{
    DEBUGMSGTL(("internal:ipv4InterfaceTable:_ipv4InterfaceTable_container_init", "called\n"));

    /*
     * container init
     */
    ipv4InterfaceTable_container_init(&if_ctx->container);
    if (NULL == if_ctx->container)
        if_ctx->container =
            netsnmp_container_find("ipv4InterfaceTable:table_container");
    if (NULL == if_ctx->container) {
        snmp_log(LOG_ERR, "error creating container in "
                 "ipv4InterfaceTable_container_init\n");
        return;
    }

}                               /* _ipv4InterfaceTable_container_init */

/**
 * @internal
 * shutdown the container with functions or wrappers
 */
void
_ipv4InterfaceTable_container_shutdown(ipv4InterfaceTable_interface_ctx *
                                       if_ctx)
{
    DEBUGMSGTL(("internal:ipv4InterfaceTable:_ipv4InterfaceTable_container_shutdown", "called\n"));

    ipv4InterfaceTable_container_shutdown(if_ctx->container);

    _container_free(if_ctx->container);

}                               /* _ipv4InterfaceTable_container_shutdown */


ipv4InterfaceTable_rowreq_ctx *
ipv4InterfaceTable_row_find_by_mib_index(ipv4InterfaceTable_mib_index *
                                         mib_idx)
{
    ipv4InterfaceTable_rowreq_ctx *rowreq_ctx;
    oid             oid_tmp[MAX_OID_LEN];
    netsnmp_index   oid_idx;
    int             rc;

    /*
     * set up storage for OID
     */
    oid_idx.oids = oid_tmp;
    oid_idx.len = sizeof(oid_tmp) / sizeof(oid);

    /*
     * convert
     */
    rc = ifTable_index_to_oid(&oid_idx, mib_idx);
    if (MFD_SUCCESS != rc)
        return NULL;

    rowreq_ctx =
        CONTAINER_FIND(ipv4InterfaceTable_if_ctx.container, &oid_idx);

    return rowreq_ctx;
}