298 lines
12 KiB
C
298 lines
12 KiB
C
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/*++ BUILD Version: 0009 // Increment this if a change has global effects
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Copyright (c) 1987-1993 Microsoft Corporation
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Module Name:
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rxcehdlr.h
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Abstract:
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This is the include file that defines all constants and types for
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accessing the redirector file system connection engine.
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Revision History:
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Balan Sethu Raman (SethuR) 06-Feb-95 Created
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Notes:
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The Connection engine is designed to map and emulate the TDI specs. as closely
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as possible. This implies that on NT we will have a very efficient mechanism
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which fully exploits the underlying TDI implementation.
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All the necessary types can be redefined in terms of the types defined in
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\nt\private\inc\tdi.h in the case of NT. For Win95 we will provide the
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appropriate definitions.
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--*/
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#ifndef _RXCEHDLR_H_
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#define _RXCEHDLR_H_
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#include "tdi.h"
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typedef TDI_PROVIDER_INFO RXCE_TRANSPORT_PROVIDER_INFO;
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typedef RXCE_TRANSPORT_PROVIDER_INFO* PRXCE_TRANSPORT_PROVIDER_INFO;
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typedef TDI_CONNECTION_INFORMATION RXCE_CONNECTION_INFORMATION;
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typedef RXCE_CONNECTION_INFORMATION* PRXCE_CONNECTION_INFORMATION;
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typedef TDI_CONNECTION_INFORMATION RXCE_CONNECTION_INFORMATION;
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typedef RXCE_CONNECTION_INFORMATION* PRXCE_CONNECTION_INFORMATION;
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typedef TDI_CONNECTION_INFO RXCE_CONNECTION_INFO;
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typedef RXCE_CONNECTION_INFO* PRXCE_CONNECTION_INFO;
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#ifdef __cplusplus
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typedef struct _RXCE_TRANSPORT_INFORMATION_ : public RXCE_TRANSPORT_PROVIDER_INFO {
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#else // !__cplusplus
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typedef struct _RXCE_TRANSPORT_INFORMATION_ {
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RXCE_TRANSPORT_PROVIDER_INFO;
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#endif // __cplusplus
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ULONG ConnectionCount;
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ULONG QualityOfService;
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} RXCE_TRANSPORT_INFORMATION, *PRXCE_TRANSPORT_INFORMATION;
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typedef enum _RXCE_CONNECTION_INFORMATION_CLASS_ {
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RxCeTransportProviderInformation = 1,
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RxCeConnectionInformation,
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RxCeConnectionEndpointInformation,
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RxCeRemoteAddressInformation
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} RXCE_CONNECTION_INFORMATION_CLASS,
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*PRXCE_CONNECTION_INFORMATION_CLASS;
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typedef struct _RXCE_VC_ *PRXCE_VC;
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typedef struct _RXCE_CONNECTION_ *PRXCE_CONNECTION;
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typedef struct _RXCE_ADDRESS_ *PRXCE_ADDRESS;
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typedef struct _RXCE_TRANSPORT_ *PRXCE_TRANSPORT;
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//
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// Disconnection indication prototype. This is invoked when a connection is
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// being disconnected for a reason other than the user requesting it.
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//
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typedef
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NTSTATUS
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(*PRXCE_IND_DISCONNECT)(
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IN PVOID pRxCeEventContext,
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IN PRXCE_VC pVc,
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IN int DisconnectDataLength,
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IN PVOID DisconnectData,
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IN int DisconnectInformationLength,
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IN PVOID DisconnectInformation,
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IN ULONG DisconnectFlags
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);
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//
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// A protocol error has occurred when this indication happens. This indication
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// occurs only for errors of the worst type; the address this indication is
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// delivered to is no longer usable for protocol-related operations, and
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// should not be used for operations henceforth. All connections associated
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// it are invalid.
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//
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typedef
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NTSTATUS
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(*PRXCE_IND_ENDPOINT_ERROR)(
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IN PVOID pRxCeEventContext, // the event context.
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IN NTSTATUS Status // status code indicating error type.
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);
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typedef
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NTSTATUS
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(*PRXCE_IND_CONNECTION_ERROR)(
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IN PVOID pRxCeEventContext, // the event context.
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PRXCE_VC pVc, // the associated VC handle
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IN NTSTATUS Status // status code indicating error type.
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);
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//
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// RXCE_IND_RECEIVE indication handler definition. This client routine is
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// called by the transport provider when a connection-oriented TSDU is received
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// that should be presented to the client.
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//
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// A Receive event handler can return one of three distinguished error codes to
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// initiate a different course of action in the connection engine.
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//
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// STATUS_SUCCESS -- Data was copied directly from the TSDU. The amout of data that
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// was taken is indicated in the parameter BytesTaken.
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//
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// STATUS_MORE_PROCESSING_REQUIRED -- The client has returned a buffer into which the
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// data should be copied. This is typically the case when BytesAvailable is greater than
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// BytesIndicated. In such cases the RxCe will copy the remaining data into the buffer
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// that is specified. Note that when this status code is returned from the client it is
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// conceivable that the client can demand more data than is available to be copied into
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// the buffer. In such cases the subsequent indications till this criterion is met is not
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// passed back to the user till the copy is completed. On completion of this copy the
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// RxCe notifies the client by invoking the RxCeDataReadyEventHandler.
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//
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// STATUS_DATA_NOT_ACCEPTED - The client has refused the data.
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//
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typedef
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NTSTATUS
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(*PRXCE_IND_RECEIVE)(
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IN PVOID pRxCeEventContext, // the context provided during registration
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IN PRXCE_VC pVc, // the associated VC handle
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IN ULONG ReceiveFlags, // the receive flags
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IN ULONG BytesIndicated, // the number of received bytes indicated
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IN ULONG BytesAvailable, // the total number of bytes available
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OUT ULONG *BytesTaken, // return indication of the bytes consumed
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IN PVOID Tsdu, // pointer describing this TSDU, typically a lump of bytes
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OUT PMDL *pDataBufferPointer, // the buffer for copying the bytes not indicated.
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OUT PULONG pDataBufferSize // amount of data to copy
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);
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//
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// RXCE_IND_RECEIVE_DATAGRAM indication handler definition. This client routine
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// is called by the transport provider when a connectionless TSDU is received
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// that should be presented to the client.
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//
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// A Receive event handler can return one of three distinguished error codes to
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// initiate a different course of action in the connection engine.
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//
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// STATUS_SUCCESS -- Data was copied directly from the TSDU. The amout of data that
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// was taken is indicated in the parameter BytesTaken.
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//
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// STATUS_MORE_PROCESSING_REQUIRED -- The client has returned a buffer into which the
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// data should be copied. This is typically the case when BytesAvailable is greater than
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// BytesIndicated. In such cases the RxCe will copy the remaining data into the buffer
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// that is specified. Note that when this status code is returned from the client it is
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// conceivable that the client can demand more data than is available to be copied into
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// the buffer. In such cases the subsequent indications till this criterion is met is not
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// passed back to the user till the copy is completed. On completion of this copy the
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// RxCe notifies the client by invoking the RxCeDataReadyEventHandler.
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//
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// STATUS_DATA_NOT_ACCEPTED - The client has refused the data.
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//
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//
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typedef
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NTSTATUS
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(*PRXCE_IND_RECEIVE_DATAGRAM)(
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IN PVOID pRxCeEventContext, // the event context
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IN int SourceAddressLength, // length of the originator of the datagram
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IN PVOID SourceAddress, // string describing the originator of the datagram
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IN int OptionsLength, // options for the receive
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IN PVOID Options, //
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IN ULONG ReceiveDatagramFlags, //
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IN ULONG BytesIndicated, // number of bytes this indication
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IN ULONG BytesAvailable, // number of bytes in complete Tsdu
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OUT ULONG *BytesTaken, // number of bytes used
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IN PVOID Tsdu, // pointer describing this TSDU, typically a lump of bytes
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OUT PMDL *pDataBufferPointer, // the buffer in which data is to be copied.
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OUT PULONG pDataBufferSize // amount of data to copy
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);
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//
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// This indication is delivered if expedited data is received on the connection.
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// This will only occur in providers that support expedited data.
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//
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// A Receive event handler can return one of three distinguished error codes to
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// initiate a different course of action in the connection engine.
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//
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// STATUS_SUCCESS -- Data was copied directly from the TSDU. The amout of data that
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// was taken is indicated in the parameter BytesTaken.
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//
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// STATUS_MORE_PROCESSING_REQUIRED -- The client has returned a buffer into which the
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// data should be copied. This is typically the case when BytesAvailable is greater than
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// BytesIndicated. In such cases the RxCe will copy the remaining data into the buffer
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// that is specified. Note that when this status code is returned from the client it is
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// conceivable that the client can demand more data than is available to be copied into
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// the buffer. In such cases the subsequent indications till this criterion is met is not
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// passed back to the user till the copy is completed. On completion of this copy the
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// RxCe notifies the client by invoking the RxCeDataReadyEventHandler.
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//
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// STATUS_DATA_NOT_ACCEPTED - The client has refused the data.
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//
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typedef
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NTSTATUS
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(*PRXCE_IND_RECEIVE_EXPEDITED)(
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IN PVOID pRxCeEventContext, // the context provided during registration
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IN PRXCE_VC pVc, // the associated VC handle
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IN ULONG ReceiveFlags, //
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IN ULONG BytesIndicated, // number of bytes in this indication
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IN ULONG BytesAvailable, // number of bytes in complete Tsdu
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OUT ULONG *BytesTaken, // number of bytes used by indication routine
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IN PVOID Tsdu, // pointer describing this TSDU, typically a lump of bytes
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OUT PMDL *pDataBufferPointer, // the buffer in which data is to be copied.
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OUT PULONG pDataBufferSize // amount of data to copy
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);
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//
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// This indication is delivered if there is room for a send in the buffer of
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// a buffering protocol.
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//
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typedef
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NTSTATUS
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(*PRXCE_IND_SEND_POSSIBLE)(
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IN PVOID pRxCeEventContext,
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IN PRXCE_VC pVc,
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IN ULONG BytesAvailable);
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//
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// RxCeDataReadyEventHandler -- This is invoked when the desired data is available
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// for client consumption. This always follows a receive indication in which the
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// client returns a buffer for copying the remaining data
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//
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typedef
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NTSTATUS
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(*PRXCE_IND_DATA_READY)(
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IN PVOID pEventContext,
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IN PMDL pBuffer,
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IN ULONG CopiedDataSize,
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IN NTSTATUS CopyDataStatus);
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//
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// RxCeSendCompleteEventHandler -- This is invoked when the send has been successfully completed
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// The buffer and the length sent are passed in as parameters
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//
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typedef
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NTSTATUS
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(*PRXCE_IND_SEND_COMPLETE)(
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IN PVOID pEventContext,
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IN PVOID pCompletionContext,
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IN NTSTATUS Status);
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typedef
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NTSTATUS
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(*PRXCE_IND_CONNECTION_SEND_COMPLETE)(
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IN PVOID pEventContext,
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IN PRXCE_VC pVc,
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IN PVOID pCompletionContext,
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IN NTSTATUS Status);
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//
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// Event Handler Dispatch Vector definitions ....
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//
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typedef struct _RXCE_ADDRESS_EVENT_HANDLER_ {
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PRXCE_IND_ENDPOINT_ERROR RxCeErrorEventHandler;
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PRXCE_IND_RECEIVE_DATAGRAM RxCeReceiveDatagramEventHandler;
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PRXCE_IND_DATA_READY RxCeDataReadyEventHandler;
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PRXCE_IND_SEND_POSSIBLE RxCeSendPossibleEventHandler;
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PRXCE_IND_SEND_COMPLETE RxCeSendCompleteEventHandler;
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} RXCE_ADDRESS_EVENT_HANDLER, *PRXCE_ADDRESS_EVENT_HANDLER;
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typedef struct _RXCE_CONNECTION_EVENT_HANDLER_ {
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PRXCE_IND_DISCONNECT RxCeDisconnectEventHandler;
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PRXCE_IND_CONNECTION_ERROR RxCeErrorEventHandler;
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PRXCE_IND_RECEIVE RxCeReceiveEventHandler;
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PRXCE_IND_RECEIVE_DATAGRAM RxCeReceiveDatagramEventHandler;
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PRXCE_IND_RECEIVE_EXPEDITED RxCeReceiveExpeditedEventHandler;
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PRXCE_IND_SEND_POSSIBLE RxCeSendPossibleEventHandler;
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PRXCE_IND_DATA_READY RxCeDataReadyEventHandler;
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PRXCE_IND_CONNECTION_SEND_COMPLETE RxCeSendCompleteEventHandler;
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} RXCE_CONNECTION_EVENT_HANDLER, *PRXCE_CONNECTION_EVENT_HANDLER;
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#endif // _RXCEHDLR_H_
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