struct _TDI_PROVIDER_INFO {
ULONG Version;
ULONG MaxSendSize;
ULONG MaxConnectionUserData;
ULONG MaxDatagramSize;
ULONG ServiceFlags;
ULONG MinimumLookaheadData;
ULONG MaximumLookaheadData;
ULONG NumberOfResources;
LARGE_INTEGER StartTime;
} TDI_PROVIDER_INFO, *PTDI_PROVIDER_INFO;
TDI_PROVIDER_INFO defines a query buffer containing information about the TDI driver. A kernel-mode client uses this structure for output the driver generates in response to the TDI_QUERY_INFORMATION request message.
Members
Version
Specifies the TDI version number. The low byte represents the minor part of the version number, and the next byte is for the major part. For the current release of TDI, the version number is 0x0100.
MaxSendSize
Specifies the maximum size, in bytes, of a buffer a client can send.
MaxConnectionUserData
Specifies the maximum size, in bytes, of the user data a client can send on the connection.
MaxDatagramSize
Specifies the maximum size, in bytes, of a datagram buffer a client can send.
ServiceFlags
Specifies a bitmask of bit flags indicating driver services. The services include:
| Driver Service | Meaning |
| TDI_SERVICE_CONNECTION_MODE | Specifies that the driver supports connection-oriented traffic. |
| TDI_SERVICE_ORDERLY_RELEASE | Specifies that the driver supports orderly release. |
| TDI_SERVICE_CONNECTIONLESS_MODE | Specifies that the driver supports connectionless traffic. |
| TDI_SERVICE_ERROR_FREE_DELIVERY | Specifies that the driver supports error-free delivery. |
| TDI_SERVICE_SECURITY_LEVEL | Specifies that the driver supports a security wrapper. |
| TDI_SERVICE_BROADCAST_SUPPORTED | Specifies that the driver supports broadcast datagrams. |
| TDI_SERVICE_MULTICAST_SUPPORTED | Specifies that the driver supports multicast datagrams. |
| TDI_SERVICE_DELAYED_ACCEPTANCE | Specifies that the driver supports delayed acceptance of incoming connect requests. |
| TDI_SERVICE_EXPEDITED_DATA | Specifies that the driver supports expedited data. |
| TDI_SERVICE_INTERNAL_BUFFERING | Specifies that the driver supports internal buffering of send and receive data. |
| TDI_SERVICE_ROUTE_DIRECTED | Specifies that directed packets can reach remote nodes that datagrams cannot reach. |
| TDI_SERVICE_NO_ZERO_LENGTH | Specifies that the driver cannot handle zero-length sends. |
| TDI_SERVICE_POINT_TO_POINT | Specifies that the driver is bound to a point-to-point netcard of type NdisMediumWan. |
MinimumLookaheadData
Specifies the minimum amount, in bytes, of lookahead data the driver indicates in a receive or receive datagram event.
MaximumLookaheadData
Specifies the maximum amount, in bytes, of lookahead data the driver indicates in a receive or receive datagram event.
NumberOfResources
Specifies the number of TDI_PROVIDER_RESOURCE_STATS structures (resources) the driver writes when the client is querying driver statistics.
StartTime
Specifies the time when the TDI driver becomes active.
See Also