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windows-nt/Source/XPSP1/NT/base/fs/rdr2/inc/mrx.h
CryptoAlgo Inc b3cac27891 Add source files
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/*++
Copyright (c) 1989 Microsoft Corporation
Module Name:
mrx.h
Abstract:
This module defines the interface between the MINI Redirectors and the RDBSS.
The inteface is a dispatch table for the normal file system operations. In
addition routines are provided for registrations/deregistration of mini
redirectors.
Author:
Joe Linn (JoeLinn) 8-17-94
Revision History:
Notes:
The interface definition between the mini redirectors and the wrapper
consists of two parts, the data structures used and the dispatch vector.
The data structures are defined in mrxfcb.h while the signatures of the
various entries in the dispatch vector and the dispatch vector itself is
defined in this file.
--*/
#ifndef _RXMINIRDR_
#define _RXMINIRDR_
#include <mrxfcb.h> // RDBSS data structures shared with the mini redirectors
// The following macros encapsulate commonly used operations in the mini redirector.
// These include setting the status/information associated with the completion of
// a request etc.
// The following three macros are used for passing back operation status from the
// minirdr to the NT wrapper. information passed back is either the open_action
// for a create or the actual byte count or an operation. these should be passed
// back directly in the rxcontext.
#define RxSetIoStatusStatus(RXCONTEXT, STATUS) \
(RXCONTEXT)->CurrentIrp->IoStatus.Status = (STATUS)
#define RxSetIoStatusInfo(RXCONTEXT, INFORMATION) \
((RXCONTEXT))->CurrentIrp->IoStatus.Information = (INFORMATION)
#define RxGetIoStatusInfo(RXCONTEXT) \
((RXCONTEXT)->CurrentIrp->IoStatus.Information)
#define RxShouldPostCompletion() ((KeGetCurrentIrql() >= DISPATCH_LEVEL))
///
/// The mini rdr's register/unregister with the RDBSS whenever they are loaded/unloaded.
/// The registartion process is a two way hand shake in which the mini rdr informs the RDBSS
/// by invoking the registartion routine. The RDBSS completes the initialization by invoking
/// the Start routine in the dispatch vector.
///
#define RX_REGISTERMINI_FLAG_DONT_PROVIDE_UNCS 0x00000001
#define RX_REGISTERMINI_FLAG_DONT_PROVIDE_MAILSLOTS 0x00000002
#define RX_REGISTERMINI_FLAG_DONT_INIT_DRIVER_DISPATCH 0x00000004
#define RX_REGISTERMINI_FLAG_DONT_INIT_PREFIX_N_SCAVENGER 0x00000008
NTSTATUS
NTAPI
RxRegisterMinirdr(
OUT PRDBSS_DEVICE_OBJECT *DeviceObject, //the deviceobject that was created
IN OUT PDRIVER_OBJECT DriverObject, // the minirdr driver object
IN PMINIRDR_DISPATCH MrdrDispatch, // the mini rdr dispatch vector
IN ULONG Controls,
IN PUNICODE_STRING DeviceName,
IN ULONG DeviceExtensionSize,
IN DEVICE_TYPE DeviceType,
IN ULONG DeviceCharacteristics
);
VOID
NTAPI
RxMakeLateDeviceAvailable(
IN PRDBSS_DEVICE_OBJECT RxDeviceObject
);
VOID
NTAPI
__RxFillAndInstallFastIoDispatch(
IN PRDBSS_DEVICE_OBJECT RxDeviceObject,
IN OUT PFAST_IO_DISPATCH FastIoDispatch,
IN ULONG FastIoDispatchSize
);
#define RxFillAndInstallFastIoDispatch(__devobj,__fastiodisp) {\
__RxFillAndInstallFastIoDispatch(&__devobj->RxDeviceObject,\
&__fastiodisp, \
sizeof(__fastiodisp)); \
}
VOID
NTAPI
RxpUnregisterMinirdr(
IN PRDBSS_DEVICE_OBJECT RxDeviceObject);
NTSTATUS
RxStartMinirdr (
IN PRX_CONTEXT RxContext,
OUT PBOOLEAN PostToFsp
);
NTSTATUS
RxStopMinirdr (
IN PRX_CONTEXT RxContext,
OUT PBOOLEAN PostToFsp
);
NTSTATUS
RxSetDomainForMailslotBroadcast (
IN PUNICODE_STRING DomainName
);
NTSTATUS
RxFsdDispatch(
IN PRDBSS_DEVICE_OBJECT RxDeviceObject,
IN PIRP Irp
);
typedef
NTSTATUS
(NTAPI *PMRX_CALLDOWN) (
IN OUT struct _RX_CONTEXT * RxContext
);
typedef
NTSTATUS
(NTAPI *PMRX_CALLDOWN_CTX) (
IN OUT struct _RX_CONTEXT * RxContext,
IN OUT PRDBSS_DEVICE_OBJECT RxDeviceObject
);
typedef
NTSTATUS
(NTAPI *PMRX_CHKDIR_CALLDOWN) (
IN OUT struct _RX_CONTEXT * RxContext,
IN PUNICODE_STRING DirectoryName
);
typedef
NTSTATUS
(NTAPI *PMRX_CHKFCB_CALLDOWN) (
IN struct _FCB * Fcb1,
IN struct _FCB * Fcb2
);
//
// The two important abstractions used in the interface between the mini rdr and RDBSS are
// Server Calls and Net Roots. The former corresponds to the context associated with a
// server with which a connection has been established and the later corresponds to a
// share on a server ( This could also be viewed as a portion of the name space which has
// been claimed by a mini rdr).
//
// The creation of Server calls and net roots typically involve atleast one network round trip.
// In order to provide for asynchronous operations to continue these operations are modelled
// as a two phase activity. Each calldown to a mini rdr for creating a server call and net root is
// accompanied by a callup from the mini rdr to the RDBSS notifying with the completion status
// of the request. Currently these are synchronous!
//
// The creation of Srv calls is further complicated by the fact that the RDBSS has to choose
// from a number of mini rdr's to establish a connection with a server. In order to provide
// the RDBSS with maximum flexibility in choosing the mini rdr's that it wishes to deploy the
// creation of server calls involves a third phase in which the RDBSS notifies the mini rdr of
// a winner. All the losing mini rdrs destroy the associated context.
//
typedef enum _RX_BLOCK_CONDITION {
Condition_Uninitialized = 0,
Condition_InTransition,
Condition_Closing,
Condition_Good,
Condition_Bad,
Condition_Closed
} RX_BLOCK_CONDITION, *PRX_BLOCK_CONDITION;
#define StableCondition(X) ((X) >= Condition_Good)
// The routine for notifying the RDBSS about the completion status of the NetRoot creation
// request.
typedef
VOID
(NTAPI *PMRX_NETROOT_CALLBACK) (
IN OUT struct _MRX_CREATENETROOT_CONTEXT *pCreateContext
);
// this routine allows the minirdr to specify the netrootname. NetRootName and RestOfName are set
// to point to the appropriate places within FilePathName. SrvCall is used to find the lengthof the srvcallname.
typedef
VOID
(NTAPI *PMRX_EXTRACT_NETROOT_NAME) (
IN PUNICODE_STRING FilePathName,
IN PMRX_SRV_CALL SrvCall,
OUT PUNICODE_STRING NetRootName,
OUT PUNICODE_STRING RestOfName OPTIONAL
);
// The resumption context for the RDBSS.
typedef struct _MRX_CREATENETROOT_CONTEXT {
PRX_CONTEXT RxContext;
PV_NET_ROOT pVNetRoot;
KEVENT FinishEvent;
NTSTATUS VirtualNetRootStatus;
NTSTATUS NetRootStatus;
RX_WORK_QUEUE_ITEM WorkQueueItem;
PMRX_NETROOT_CALLBACK Callback;
} MRX_CREATENETROOT_CONTEXT, *PMRX_CREATENETROOT_CONTEXT;
// the calldown from RDBSS to the mini rdr for creating a netroot.
typedef
NTSTATUS
(NTAPI *PMRX_CREATE_V_NET_ROOT)(
IN OUT PMRX_CREATENETROOT_CONTEXT pContext
);
// the calldown for querying a net root state.
typedef
NTSTATUS
(NTAPI *PMRX_UPDATE_NETROOT_STATE)(
IN OUT PMRX_NET_ROOT pNetRoot
);
// The routine for notifying the RDBSS about the completion status of the SrvCall creation
// request.
typedef
VOID
(NTAPI *PMRX_SRVCALL_CALLBACK) (
IN OUT struct _MRX_SRVCALL_CALLBACK_CONTEXT *pContext
);
// The resumption context for the RDBSS.
typedef struct _MRX_SRVCALL_CALLBACK_CONTEXT {
struct _MRX_SRVCALLDOWN_STRUCTURE *SrvCalldownStructure; //could be computed
ULONG CallbackContextOrdinal;
PRDBSS_DEVICE_OBJECT RxDeviceObject;
NTSTATUS Status;
PVOID RecommunicateContext;
} MRX_SRVCALL_CALLBACK_CONTEXT, *PMRX_SRVCALL_CALLBACK_CONTEXT;
// The context passed from the RDBSS to the mini rdr for creating a server call.
typedef struct _MRX_SRVCALLDOWN_STRUCTURE {
KEVENT FinishEvent;
LIST_ENTRY SrvCalldownList;
PRX_CONTEXT RxContext;
PMRX_SRV_CALL SrvCall;
PMRX_SRVCALL_CALLBACK CallBack;
BOOLEAN CalldownCancelled;
ULONG NumberRemaining;
ULONG NumberToWait;
ULONG BestFinisherOrdinal;
PRDBSS_DEVICE_OBJECT BestFinisher;
MRX_SRVCALL_CALLBACK_CONTEXT CallbackContexts[1];
} MRX_SRVCALLDOWN_STRUCTURE;
// the calldown from the RDBSS to the mini rdr for creating a server call
typedef
NTSTATUS
(NTAPI *PMRX_CREATE_SRVCALL)(
IN OUT PMRX_SRV_CALL pSrvCall,
IN OUT PMRX_SRVCALL_CALLBACK_CONTEXT SrvCallCallBackContext
);
// the calldown from the RDBSS to the mini rdr for notifying the mini rdr's of the winner.
typedef
NTSTATUS
(NTAPI *PMRX_SRVCALL_WINNER_NOTIFY)(
IN OUT PMRX_SRV_CALL SrvCall,
IN BOOLEAN ThisMinirdrIsTheWinner,
IN OUT PVOID RecommunicateContext
);
//
// The prototypes for calldown routines relating to various file system operations
//
typedef
VOID
(NTAPI *PMRX_NEWSTATE_CALLDOWN) (
IN OUT PVOID Context
);
typedef
NTSTATUS
(NTAPI *PMRX_DEALLOCATE_FOR_FCB) (
IN OUT PMRX_FCB pFcb
);
typedef
NTSTATUS
(NTAPI *PMRX_DEALLOCATE_FOR_FOBX) (
IN OUT PMRX_FOBX pFobx
);
typedef
NTSTATUS
(NTAPI *PMRX_IS_LOCK_REALIZABLE) (
IN OUT PMRX_FCB pFcb,
IN PLARGE_INTEGER ByteOffset,
IN PLARGE_INTEGER Length,
IN ULONG LowIoLockFlags
);
typedef
NTSTATUS
(NTAPI *PMRX_FORCECLOSED_CALLDOWN) (
IN OUT PMRX_SRV_OPEN pSrvOpen
);
typedef
NTSTATUS
(NTAPI *PMRX_FINALIZE_SRVCALL_CALLDOWN) (
IN OUT PMRX_SRV_CALL pSrvCall,
IN BOOLEAN Force
);
typedef
NTSTATUS
(NTAPI *PMRX_FINALIZE_V_NET_ROOT_CALLDOWN) (
IN OUT PMRX_V_NET_ROOT pVirtualNetRoot,
IN PBOOLEAN Force
);
typedef
NTSTATUS
(NTAPI *PMRX_FINALIZE_NET_ROOT_CALLDOWN) (
IN OUT PMRX_NET_ROOT pNetRoot,
IN PBOOLEAN Force
);
typedef
ULONG
(NTAPI *PMRX_EXTENDFILE_CALLDOWN) (
IN OUT struct _RX_CONTEXT * RxContext,
IN OUT PLARGE_INTEGER pNewFileSize,
OUT PLARGE_INTEGER pNewAllocationSize
);
typedef
BOOLEAN
(*PRX_LOCK_ENUMERATOR) (
IN OUT struct _MRX_SRV_OPEN_ * SrvOpen,
IN OUT PVOID *ContinuationHandle,
OUT PLARGE_INTEGER FileOffset,
OUT PLARGE_INTEGER LockRange,
OUT PBOOLEAN IsLockExclusive
);
typedef
NTSTATUS
(NTAPI *PMRX_CHANGE_BUFFERING_STATE_CALLDOWN) (
IN OUT struct _RX_CONTEXT * RxContext,
IN OUT struct _MRX_SRV_OPEN_ * SrvOpen,
IN PVOID pMRxContext
);
typedef
NTSTATUS
(NTAPI *PMRX_PREPARSE_NAME) (
IN OUT struct _RX_CONTEXT * RxContext,
IN PUNICODE_STRING Name
);
typedef
NTSTATUS
(NTAPI *PMRX_GET_CONNECTION_ID) (
IN OUT struct _RX_CONTEXT * RxContext,
IN OUT struct _RX_CONNECTION_ID * UniqueId
);
//
// Buffering state/Policy management TBD
//
typedef enum _MINIRDR_BUFSTATE_COMMANDS {
MRDRBUFSTCMD__COMMAND_FORCEPURGE0,
MRDRBUFSTCMD__1,
MRDRBUFSTCMD__2,
MRDRBUFSTCMD__3,
MRDRBUFSTCMD__4,
MRDRBUFSTCMD__5,
MRDRBUFSTCMD__6,
MRDRBUFSTCMD__7,
MRDRBUFSTCMD__8,
MRDRBUFSTCMD__9,
MRDRBUFSTCMD__10,
MRDRBUFSTCMD__11,
MRDRBUFSTCMD__12,
MRDRBUFSTCMD__13,
MRDRBUFSTCMD__14,
MRDRBUFSTCMD__15,
MRDRBUFSTCMD__16,
MRDRBUFSTCMD__17,
MRDRBUFSTCMD__18,
MRDRBUFSTCMD__19,
MRDRBUFSTCMD__20,
MRDRBUFSTCMD__21,
MRDRBUFSTCMD__22,
MRDRBUFSTCMD__23,
MRDRBUFSTCMD__24,
MRDRBUFSTCMD__25,
MRDRBUFSTCMD__26,
MRDRBUFSTCMD__27,
MRDRBUFSTCMD__28,
MRDRBUFSTCMD__29,
MRDRBUFSTCMD__30,
MRDRBUFSTCMD__31,
MRDRBUFSTCMD_MAXXX
} MINIRDR_BUFSTATE_COMMANDS;
#define RXMakeMRDRBUFSTCMD(x) ((ULONG)(1<<MRDRBUFSTCMD__##x))
#define MINIRDR_BUFSTATE_COMMAND_FORCEPURGE ( RXMakeMRDRBUFSTCMD(COMMAND_FORCEPURGE0) )
#define MINIRDR_BUFSTATE_COMMAND_MASK ((MINIRDR_BUFSTATE_COMMAND_FORCEPURGE))
typedef
NTSTATUS
(NTAPI *PMRX_COMPUTE_NEW_BUFFERING_STATE) (
IN OUT PMRX_SRV_OPEN pSrvOpen,
IN PVOID pMRxContext,
OUT PULONG pNewBufferingState
);
typedef enum _LOWIO_OPS {
LOWIO_OP_READ=0,
LOWIO_OP_WRITE,
LOWIO_OP_SHAREDLOCK,
LOWIO_OP_EXCLUSIVELOCK,
LOWIO_OP_UNLOCK,
LOWIO_OP_UNLOCK_MULTIPLE,
//LOWIO_OP_UNLOCKALLBYKEY,
LOWIO_OP_FSCTL,
LOWIO_OP_IOCTL,
LOWIO_OP_NOTIFY_CHANGE_DIRECTORY,
LOWIO_OP_CLEAROUT,
LOWIO_OP_MAXIMUM
} LOWIO_OPS;
typedef
NTSTATUS
(NTAPI *PLOWIO_COMPLETION_ROUTINE) (
IN struct _RX_CONTEXT *RxContext
);
typedef LONGLONG RXVBO;
// we may, at some point, want a smarter implementation of this. we don't statically allocate the first
// element because that would make unlock behind much harder.
typedef struct _LOWIO_LOCK_LIST *PLOWIO_LOCK_LIST;
typedef struct _LOWIO_LOCK_LIST {
PLOWIO_LOCK_LIST Next;
ULONG LockNumber;
RXVBO ByteOffset;
LONGLONG Length;
BOOLEAN ExclusiveLock;
} LOWIO_LOCK_LIST;
VOID
NTAPI
RxFinalizeLockList(
struct _RX_CONTEXT *RxContext
);
typedef struct _XXCTL_LOWIO_COMPONENT{
ULONG Flags;
union {
ULONG FsControlCode;
ULONG IoControlCode;
};
ULONG InputBufferLength;
PVOID pInputBuffer;
ULONG OutputBufferLength;
PVOID pOutputBuffer;
UCHAR MinorFunction;
} XXCTL_LOWIO_COMPONENT;
typedef struct _LOWIO_CONTEXT {
USHORT Operation; // padding!
USHORT Flags;
PLOWIO_COMPLETION_ROUTINE CompletionRoutine;
PERESOURCE Resource;
ERESOURCE_THREAD ResourceThreadId;
union {
struct {
ULONG Flags;
PMDL Buffer;
RXVBO ByteOffset;
ULONG ByteCount;
ULONG Key;
PNON_PAGED_FCB NonPagedFcb;
} ReadWrite;
struct {
union {
PLOWIO_LOCK_LIST LockList;
LONGLONG Length;
};
//these fields are not used if locklist is used
ULONG Flags;
RXVBO ByteOffset;
ULONG Key;
} Locks;
XXCTL_LOWIO_COMPONENT FsCtl;
XXCTL_LOWIO_COMPONENT IoCtl; //these must be the same
struct {
BOOLEAN WatchTree;
ULONG CompletionFilter;
ULONG NotificationBufferLength;
PVOID pNotificationBuffer;
} NotifyChangeDirectory;
} ParamsFor;
} LOWIO_CONTEXT;
#define LOWIO_CONTEXT_FLAG_SYNCCALL 0x0001 //this is set if lowiocompletion is called from lowiosubmit
#define LOWIO_CONTEXT_FLAG_SAVEUNLOCKS 0x0002 //WRAPPER INTERNAL: on NT, it means the unlock routine add unlocks to the list
#define LOWIO_CONTEXT_FLAG_LOUDOPS 0x0004 //WRAPPER INTERNAL: on NT, it means read and write routines generate dbg output
#define LOWIO_CONTEXT_FLAG_CAN_COMPLETE_AT_DPC_LEVEL 0x0008 //WRAPPER INTERNAL: on NT, it means the completion routine maybe can
// complete when called at DPC. otherwise it cannnot. currently
// none can.
#define LOWIO_READWRITEFLAG_PAGING_IO 0x01
#define LOWIO_READWRITEFLAG_EXTENDING_FILESIZE 0x02
#define LOWIO_READWRITEFLAG_EXTENDING_VDL 0x04
//these must match the SL_ values in io.h (ntifs.h) since the flags field is just copied
#define LOWIO_LOCKSFLAG_FAIL_IMMEDIATELY 0x01
#define LOWIO_LOCKSFLAG_EXCLUSIVELOCK 0x02
#if (LOWIO_LOCKSFLAG_FAIL_IMMEDIATELY!=SL_FAIL_IMMEDIATELY)
#error LOWIO_LOCKSFLAG_FAIL_IMMEDIATELY!=SL_FAIL_IMMEDIATELY
#endif
#if (LOWIO_LOCKSFLAG_EXCLUSIVELOCK!=SL_EXCLUSIVE_LOCK)
#error LOWIO_LOCKSFLAG_EXCLUSIVELOCK!=SL_EXCLUSIVE_LOCK
#endif
//
// The six important data structures (SRV_CALL,NET_ROOT,V_NET_ROOT,FCB,SRV_OPEN and
// FOBX) that are an integral part of the mini rdr architecture have a corresponding
// counterpart in every mini rdr implementation. In order to provide maximal flexibility
// and at the same time enhance performance the sizes and the desired allocation
// behaviour are communicated at the registration time of a mini rdr.
//
// There is no single way in which these extensions can be managed which will
// address the concerns of flexibility as well as performance. The solution adopted
// in the current architecture that meets the dual goals in most cases. The solution
// and the rationale is as follows ...
//
// Each mini rdr implementor specifies the size of the data structure extensions
// alongwith a flag specfying if the allocation/free of the extensions are to be
// managed by the wrapper.
//
// In all those cases where a one to one relationship exists between the wrapper
// data structure and the corresponding mini rdr counterpart specifying the flag
// results in maximal performance gains. There are a certain data structures for
// which many instances of a wrapper data structure map onto the same extension in
// the mini redirector. In such cases the mini rdr implementor will be better off
// managing the allocation/deallocation of the data structure extension without the
// intervention of the wrapper.
//
// Irrespective of the mechanism choosen the convention is to always associate the
// extension with the Context field in the corresponding RDBSS data structure.
// !!!NO EXCEPTIONS!!!
//
// The remaining field in all the RDBSS data structures, i.e., Context2 is left to
// the discretion og the mini rdr implementor.
//
//
// The SRV_CALL extension is not handled currently. This is because of further fixes
// required in RDBSS w.r.t the mecahsnism used to select the mini rdr and to allow several
// minis to share the srvcall.
//
// Please do not use it till further notice; rather, the mini should manage its own srcall
// storage. There is a finalization calldown that assists in this endeavor.
#define RDBSS_MANAGE_SRV_CALL_EXTENSION (0x1)
#define RDBSS_MANAGE_NET_ROOT_EXTENSION (0x2)
#define RDBSS_MANAGE_V_NET_ROOT_EXTENSION (0x4)
#define RDBSS_MANAGE_FCB_EXTENSION (0x8)
#define RDBSS_MANAGE_SRV_OPEN_EXTENSION (0x10)
#define RDBSS_MANAGE_FOBX_EXTENSION (0x20)
#define RDBSS_NO_DEFERRED_CACHE_READAHEAD (0x1000)
typedef struct _MINIRDR_DISPATCH {
NODE_TYPE_CODE NodeTypeCode; // Normal Header
NODE_BYTE_SIZE NodeByteSize;
ULONG MRxFlags; // Flags to control the allocation of extensions.
// and various other per-minirdr policies
ULONG MRxSrvCallSize; // size of the SRV_CALL extensions
ULONG MRxNetRootSize; // size of the NET_ROOT extensions
ULONG MRxVNetRootSize; // size of the V_NET_ROOT extensions
ULONG MRxFcbSize; // size of FCB extensions
ULONG MRxSrvOpenSize; // size of SRV_OPEN extensions
ULONG MRxFobxSize; // size of FOBX extensions
// Call downs for starting/stopping the mini rdr
PMRX_CALLDOWN_CTX MRxStart;
PMRX_CALLDOWN_CTX MRxStop;
// Call down for cancelling outstanding requests
PMRX_CALLDOWN MRxCancel;
// Call downs related to creating/opening/closing file system objects
PMRX_CALLDOWN MRxCreate;
PMRX_CALLDOWN MRxCollapseOpen;
PMRX_CALLDOWN MRxShouldTryToCollapseThisOpen;
PMRX_CALLDOWN MRxFlush;
PMRX_CALLDOWN MRxZeroExtend;
PMRX_CALLDOWN MRxTruncate;
PMRX_CALLDOWN MRxCleanupFobx;
PMRX_CALLDOWN MRxCloseSrvOpen;
PMRX_DEALLOCATE_FOR_FCB MRxDeallocateForFcb;
PMRX_DEALLOCATE_FOR_FOBX MRxDeallocateForFobx;
PMRX_IS_LOCK_REALIZABLE MRxIsLockRealizable;
PMRX_FORCECLOSED_CALLDOWN MRxForceClosed;
PMRX_CHKFCB_CALLDOWN MRxAreFilesAliased;
// call downs related to nonNT style printing.....note that the connect goes thru
// the normal srvcall/netroot interface
PMRX_CALLDOWN MRxOpenPrintFile;
PMRX_CALLDOWN MRxClosePrintFile;
PMRX_CALLDOWN MRxWritePrintFile;
PMRX_CALLDOWN MRxEnumeratePrintQueue;
// call downs related to unsatisfied requests, i.e., time outs
PMRX_CALLDOWN MRxClosedSrvOpenTimeOut;
PMRX_CALLDOWN MRxClosedFcbTimeOut;
// call downs related to query/set information on file system objects
PMRX_CALLDOWN MRxQueryDirectory;
PMRX_CALLDOWN MRxQueryFileInfo;
PMRX_CALLDOWN MRxSetFileInfo;
PMRX_CALLDOWN MRxSetFileInfoAtCleanup;
PMRX_CALLDOWN MRxQueryEaInfo;
PMRX_CALLDOWN MRxSetEaInfo;
PMRX_CALLDOWN MRxQuerySdInfo;
PMRX_CALLDOWN MRxSetSdInfo;
PMRX_CALLDOWN MRxQueryQuotaInfo;
PMRX_CALLDOWN MRxSetQuotaInfo;
PMRX_CALLDOWN MRxQueryVolumeInfo;
PMRX_CALLDOWN MRxSetVolumeInfo;
PMRX_CHKDIR_CALLDOWN MRxIsValidDirectory;
// call downs related to buffer management
PMRX_COMPUTE_NEW_BUFFERING_STATE MRxComputeNewBufferingState;
// call downs related to Low I/O management (reads/writes on file system objects)
PMRX_CALLDOWN MRxLowIOSubmit[LOWIO_OP_MAXIMUM+1];
PMRX_EXTENDFILE_CALLDOWN MRxExtendForCache;
PMRX_EXTENDFILE_CALLDOWN MRxExtendForNonCache;
PMRX_CHANGE_BUFFERING_STATE_CALLDOWN MRxCompleteBufferingStateChangeRequest;
// call downs related to name space management
PMRX_CREATE_V_NET_ROOT MRxCreateVNetRoot;
PMRX_FINALIZE_V_NET_ROOT_CALLDOWN MRxFinalizeVNetRoot;
PMRX_FINALIZE_NET_ROOT_CALLDOWN MRxFinalizeNetRoot;
PMRX_UPDATE_NETROOT_STATE MRxUpdateNetRootState;
PMRX_EXTRACT_NETROOT_NAME MRxExtractNetRootName;
// call downs related to establishing connections with servers
PMRX_CREATE_SRVCALL MRxCreateSrvCall;
PMRX_CREATE_SRVCALL MRxCancelCreateSrvCall;
PMRX_SRVCALL_WINNER_NOTIFY MRxSrvCallWinnerNotify;
PMRX_FINALIZE_SRVCALL_CALLDOWN MRxFinalizeSrvCall;
PMRX_CALLDOWN MRxDevFcbXXXControlFile;
// new calldowns
// Allow a client to preparse the name
PMRX_PREPARSE_NAME MRxPreparseName;
// call down for controlling multi-plexing
PMRX_GET_CONNECTION_ID MRxGetConnectionId;
} MINIRDR_DISPATCH, *PMINIRDR_DISPATCH;
#endif // _RXMINIRDR_
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