Source code of Windows XP (NT5)
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/************************************************************************
Copyright (c) 1993-2000 Microsoft Corporation
Module Name :
pipendr.h
Abstract :
NDR Pipe related definitions.
Author :
RyszardK December 1995
Revision History :
***********************************************************************/
#ifndef _PIPENDR_H_
#define _PIPENDR_H_
#include "interp2.h"
typedef struct _NDR_PIPE_DESC * PNDR_PIPE_DESC;
#define PIPE_PARTIAL_BUFFER_SIZE 5000
#define PIPE_ELEM_BUFFER_SIZE 5000
//
// Signature and version
//
#define NDR_PIPE_SIGNATURE (ushort) 0x5667
#define NDR_PIPE_VERSION (short) 0x3031
//
// Pipe flags
//
#define NDR_IN_PIPE 0x0001
#define NDR_OUT_PIPE 0x0002
#define NDR_LAST_IN_PIPE 0x0004
#define NDR_LAST_OUT_PIPE 0x0008
#define NDR_OUT_ALLOCED 0x0010
#define NDR_REF_PIPE 0x0020
//
// Pipe Status - global state for individual pipes in the pipe message.
//
typedef enum {
NDR_PIPE_NOT_OPENED,
NDR_PIPE_ACTIVE_IN,
NDR_PIPE_ACTIVE_OUT,
NDR_PIPE_DRAINED
} NDR_PIPE_STATUS;
#define PLONG_LV_CAST *(long * *)&
#define PULONG_LV_CAST *(ulong * *)&
#define WIRE_PAD(size, al) ((((ulong)size)&al) ? ((ulong)(al+1)-(((ulong)size)&al)) : 0)
#define REMAINING_BYTES() ((long)pStubMsg->RpcMsg->BufferLength - \
(long)(pStubMsg->Buffer - (uchar*)pStubMsg->RpcMsg->Buffer))
// These are the states of the state machine processing the chunks
// in the marshaling buffer.
typedef enum {
START,
COPY_PIPE_ELEM,
RETURN_PARTIAL_ELEM,
READ_PARTIAL_ELEM,
VERIFY_TAIL_CHUNK
} RECEIVE_STATES;
typedef struct _FC_PIPE_DEF
{
unsigned char Fc;
unsigned char Align : 4; //
unsigned char Unused : 1; // Flag and alignment byte
unsigned char HasRange : 1; //
unsigned char ObjectPipe : 1; //
unsigned char BigPipe : 1; //
short TypeOffset;
union
{
struct
{
unsigned short MemSize;
unsigned short WireSize;
unsigned long LowChunkLimit;
unsigned long HighChunkLimit;
} s;
struct
{
unsigned long MemSize;
unsigned long WireSize;
unsigned long LowChunkLimit;
unsigned long HighChunkLimit;
} Big;
};
} FC_PIPE_DEF;
//
// The NDR_PIPE_*_RTN are templates for the DCE raw runtime routines.
// This should be moved to rpcndr.h when we decide to expose -Os stubs.
//
typedef void
(__RPC_API * NDR_PIPE_PULL_RTN)(
char * state,
void * buf,
unsigned long esize,
unsigned long * ecount );
typedef void
(__RPC_API * NDR_PIPE_PUSH_RTN)(
char * state,
void * buf,
unsigned long ecount );
typedef void
(__RPC_API * NDR_PIPE_ALLOC_RTN)(
char * state,
unsigned long bsize,
void ** buf,
unsigned long * bcount );
//
// The NDR_HR_PIPE_*_RTN are templates abstracting DCOM pipe routines
// and also async raw pipe routine - note that there is an error code returned.
//
typedef RPC_STATUS
(__RPC_API * NDR_HR_PIPE_PULL_RTN)(
char * state,
void * buf,
unsigned long esize,
unsigned long * ecount );
typedef RPC_STATUS
(__RPC_API * NDR_HR_PIPE_PUSH_RTN)(
char * state,
void * buf,
unsigned long ecount );
typedef RPC_STATUS
(__RPC_API * NDR_HR_PIPE_ALLOC_RTN)(
char * state,
unsigned long bsize,
void ** buf,
unsigned long * bcount );
typedef struct _GENERIC_PIPE_TYPE
{
NDR_HR_PIPE_PULL_RTN pfnPull;
NDR_HR_PIPE_PUSH_RTN pfnPush;
NDR_HR_PIPE_ALLOC_RTN pfnAlloc;
char * pState;
} GENERIC_PIPE_TYPE;
#define NDR_DEFAULT_PIPE_HIGH_CHUNK_LIMIT 0x0ffffff /* less than 2GB */
typedef struct {
int CurrentState;
int TotalElemsCount;
int OrigElemsInChunk;
int ElemsInChunk;
int ElemAlign;
int ElemWireSize;
int ElemMemSize;
int PartialBufferSize;
unsigned char * PartialElem;
int PartialElemSize;
int PartialOffset;
int EndOfPipe : 1;
int EndOfPipePending : 1;
int LowChunkLimit;
int HighChunkLimit;
BOOL fBlockCopy;
int ElemPad;
PFORMAT_STRING TypeFormat;
} NDR_PIPE_STATE;
typedef enum _NDR_DCOM_PIPE_STATE
{
NDR_DCOM_NO_PIPES,
NDR_DCOM_IN_PIPE_PROCESSING,
NDR_DCOM_IN_PIPES_DRAINED,
NDR_DCOM_OUT_PIPE_PROCESSING,
NDR_DCOM_OUT_PIPES_DRAINED,
NDR_DCOM_PIPES_DONE,
NDR_DCOM_PIPE_ERROR
} NDR_DCOM_PIPE_STATE;
typedef struct _NDR_PIPE_MESSAGE
{
unsigned short Signature;
unsigned short PipeId;
unsigned short PipeStatus;
unsigned short PipeFlags;
PFORMAT_STRING pTypeFormat;
PMIDL_STUB_MESSAGE pStubMsg;
GENERIC_PIPE_TYPE * pPipeObject;
} NDR_PIPE_MESSAGE, * PNDR_PIPE_MESSAGE;
//
// Flags helping with the buffer management at the server.
// [in] pipes need to be processed within a separate in buffer.
// This buffer needs to be freed after last [in] pipe.
// [out] pipe processing has to start with a partial RpcGetBuffer.
// Nothing needs to be done with that buffer before return to runtime.
//
typedef struct _PIPEDESC_FLAGS
{
unsigned short AuxOutBufferAllocated : 1;
unsigned short NoBufferCallPending : 1;
unsigned short Reserved : 1;
unsigned short NoMoreBuffersToRead : 1;
} PIPEDESC_FLAGS;
#ifdef __cplusplus
class NDR_PIPE_HELPER
{
public:
// Init functions
virtual PNDR_PIPE_DESC GetPipeDesc() = 0;
// Parameter enum functions
virtual bool InitParamEnum() = 0;
virtual bool GotoNextParam() = 0;
virtual unsigned short GetParamPipeFlags() = 0;
virtual PFORMAT_STRING GetParamTypeFormat() = 0;
virtual char *GetParamArgument() = 0;
// Pipe State
virtual void InitPipeStateWithType( PNDR_PIPE_MESSAGE pPipeMsg) = 0;
// Marshall Unmarshall Functions.
virtual void MarshallType( PNDR_PIPE_MESSAGE pPipeMsg,
uchar *pMemory,
unsigned long Elements ) = 0;
virtual void UnmarshallType( PNDR_PIPE_MESSAGE pPipeMsg,
uchar *pMemory,
unsigned long Elements ) = 0;
virtual void BufferSizeType( PNDR_PIPE_MESSAGE pPipeMsg,
uchar *pMemory,
unsigned long Elements ) = 0;
virtual void ConvertType( PNDR_PIPE_MESSAGE pPipeMsg,
unsigned long Elements ) = 0;
virtual void BufferSizeChunkCounter( PNDR_PIPE_MESSAGE pPipeMsg ) = 0;
virtual bool UnmarshallChunkCounter( PNDR_PIPE_MESSAGE pPipeMsg,
ulong *pOut ) = 0;
virtual void MarshallChunkCounter( PNDR_PIPE_MESSAGE pPipeMsg,
ulong Counter ) = 0;
virtual void BufferSizeChunkTailCounter( PNDR_PIPE_MESSAGE pPipeMsg ) = 0;
virtual void MarshallChunkTailCounter( PNDR_PIPE_MESSAGE pPipeMsg,
ulong Counter ) = 0;
virtual bool VerifyChunkTailCounter( PNDR_PIPE_MESSAGE pPipeMsg,
ulong HeaderCounter ) = 0;
virtual bool HasChunkTailCounter() = 0;
};
typedef NDR_PIPE_HELPER *PNDR_PIPE_HELPER;
#else // #ifdef __cplusplus
typedef void *PNDR_PIPE_HELPER;
#endif
typedef struct _NDR_ALLOCA_CONTEXT *PNDR_ALLOCA_CONTEXT;
typedef struct _NDR_PIPE_DESC
{
NDR_PIPE_MESSAGE * pPipeMsg;
short CurrentPipe;
short PrevPipe;
short InPipes;
short OutPipes;
short TotalPipes;
short PipeVersion;
PIPEDESC_FLAGS Flags;
unsigned long PipeException;
unsigned char * DispatchBuffer;
unsigned long DispatchBufferLength;
unsigned char * LastPartialBuffer;
unsigned long LastPartialSize;
unsigned char Leftover[8];
unsigned long LeftoverSize;
unsigned char * BufferSave;
unsigned long LengthSave;
NDR_PIPE_STATE RuntimeState;
void * ChainingBuffer;
unsigned long ChainingBufferSize;
PNDR_PIPE_HELPER pPipeHelper;
PNDR_ALLOCA_CONTEXT pAllocContext;
} NDR_PIPE_DESC, * PNDR_PIPE_DESC;
//
// Most of these prototypes should be exposed when we have -Os stubs.
//
void RPC_ENTRY
NdrPipeAlloc(
char * pState,
unsigned long bsize,
void ** buf,
unsigned long * bcount );
RPC_STATUS RPC_ENTRY
NdrAsyncPipeAlloc(
char * pState,
unsigned long bsize,
void ** buf,
unsigned long * bcount );
RPCRTAPI
RPC_STATUS RPC_ENTRY
NdrAsyncPipePull(
char * pState,
void * buf,
unsigned long esize,
unsigned long * ecount );
RPCRTAPI
RPC_STATUS RPC_ENTRY
NdrAsyncPipePush(
char * pState,
void * buf,
unsigned long ecount );
void
NdrpPipeElementBufferSize(
NDR_PIPE_DESC * pPipeDesc,
PMIDL_STUB_MESSAGE pStubMsg,
uchar * pMemory,
ulong ElemCount
);
void
NdrpPipeElementConvertAndUnmarshal(
NDR_PIPE_DESC * pPipeDesc,
PMIDL_STUB_MESSAGE pStubMsg,
uchar * * ppMemory,
long ElemMemCount,
long * pActCount
);
BOOL
NdrReadPipeElements(
NDR_PIPE_DESC * pPipeDesc,
PMIDL_STUB_MESSAGE pStubMsg,
unsigned char * pTargetBuffer,
long * pElementsRead
);
void
NdrpReadPipeElementsFromBuffer (
NDR_PIPE_DESC * pPipeDesc,
PMIDL_STUB_MESSAGE pStubMsg,
uchar ** TargetBuffer,
long TargetBufferCount,
long * NumCopied
);
RPC_STATUS
NdrpPushPipeForClient(
PMIDL_STUB_MESSAGE pStubMsg,
NDR_PIPE_DESC * pPipeDesc,
BOOL fPushWholePipe,
long * pActElems );
RPC_STATUS
NdrpPullPipeForClient(
PMIDL_STUB_MESSAGE pStubMsg,
NDR_PIPE_DESC * pPipeDesc,
BOOL fPushWholePipe,
long * pActElems,
BOOL * fEndOfPipe );
void
NdrMarkNextActivePipe(
NDR_PIPE_DESC * pPipeDesc );
RPC_STATUS RPC_ENTRY
NdrSend(
NDR_PIPE_DESC * pPipeDesc,
PMIDL_STUB_MESSAGE pStubMsg,
BOOL fPartial );
void RPC_ENTRY
NdrPartialSend(
NDR_PIPE_DESC * pPipeDesc,
PMIDL_STUB_MESSAGE pStubMsg );
void RPC_ENTRY
NdrCompleteSend(
NDR_PIPE_DESC * pPipeDesc,
PMIDL_STUB_MESSAGE pStubMsg );
void RPC_ENTRY
NdrReceive(
NDR_PIPE_DESC * pPipeDesc,
PMIDL_STUB_MESSAGE pStubMsg,
unsigned long Size,
BOOL fPartial );
void RPC_ENTRY
NdrPartialReceive(
NDR_PIPE_DESC * pPipeDesc,
PMIDL_STUB_MESSAGE pStubMsg,
unsigned long Size );
void RPC_ENTRY
NdrPipeSendReceive(
PMIDL_STUB_MESSAGE pStubMsg,
NDR_PIPE_DESC * pPipeDesc
);
void
RPC_ENTRY
NdrIsAppDoneWithPipes(
PNDR_PIPE_DESC pPipeDesc
);
void RPC_ENTRY
NdrPipesInitialize(
PMIDL_STUB_MESSAGE pStubMsg,
PNDR_PIPE_HELPER pPipeHelper,
PNDR_ALLOCA_CONTEXT pAllocContext
);
void
NdrpPipesInitialize32(
PMIDL_STUB_MESSAGE pStubMsg,
PNDR_ALLOCA_CONTEXT pAllocContext,
PFORMAT_STRING Params,
char * pStackTop,
unsigned long NumberParams
);
void
NdrpPipesInitialize64(
PMIDL_STUB_MESSAGE pStubMsg,
PNDR_ALLOCA_CONTEXT pAllocContext,
PFORMAT_STRING Params,
char * pStackTop,
unsigned long NumberParams
);
RPCRTAPI
void
RPC_ENTRY
NdrPipePull(
char * pState,
void * buf,
unsigned long esize,
unsigned long * ecount );
RPCRTAPI
void
RPC_ENTRY
NdrPipePush(
char * pState,
void * buf,
unsigned long ecount );
RPCRTAPI
unsigned char *
RPC_ENTRY
NdrGetPipeBuffer(
PMIDL_STUB_MESSAGE pStubMsg,
unsigned long BufferLength,
RPC_BINDING_HANDLE Handle );
RPCRTAPI
void
RPC_ENTRY
NdrGetPartialBuffer(
PMIDL_STUB_MESSAGE pStubMsg );
void
NdrpRaisePipeException(
NDR_PIPE_DESC * pPipeDesc,
RPC_STATUS Exception );
#endif // PIPENDR