mirror of
https://github.com/reactos/reactos.git
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548 lines
17 KiB
C
548 lines
17 KiB
C
#ifndef _RX_CONTEXT_STRUCT_DEFINED_
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#define _RX_CONTEXT_STRUCT_DEFINED_
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#define RX_TOPLEVELIRP_CONTEXT_SIGNATURE 'LTxR'
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typedef struct _RX_TOPLEVELIRP_CONTEXT
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{
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union
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{
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#ifndef __cplusplus
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LIST_ENTRY;
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#endif
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LIST_ENTRY ListEntry;
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};
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ULONG Signature;
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PRDBSS_DEVICE_OBJECT RxDeviceObject;
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PRX_CONTEXT RxContext;
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PIRP Irp;
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ULONG Flags;
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PVOID Previous;
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PETHREAD Thread;
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} RX_TOPLEVELIRP_CONTEXT, *PRX_TOPLEVELIRP_CONTEXT;
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BOOLEAN
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RxTryToBecomeTheTopLevelIrp(
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_Inout_ PRX_TOPLEVELIRP_CONTEXT TopLevelContext,
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_In_ PIRP Irp,
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_In_ PRDBSS_DEVICE_OBJECT RxDeviceObject,
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_In_ BOOLEAN ForceTopLevel);
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VOID
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__RxInitializeTopLevelIrpContext(
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_Inout_ PRX_TOPLEVELIRP_CONTEXT TopLevelContext,
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_In_ PIRP Irp,
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_In_ PRDBSS_DEVICE_OBJECT RxDeviceObject,
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_In_ ULONG Flags);
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#define RxInitializeTopLevelIrpContext(a,b,c) __RxInitializeTopLevelIrpContext(a,b,c,0)
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PIRP
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RxGetTopIrpIfRdbssIrp(
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VOID);
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PRDBSS_DEVICE_OBJECT
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RxGetTopDeviceObjectIfRdbssIrp(
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VOID);
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VOID
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RxUnwindTopLevelIrp(
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_Inout_ PRX_TOPLEVELIRP_CONTEXT TopLevelContext);
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BOOLEAN
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RxIsThisTheTopLevelIrp(
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_In_ PIRP Irp);
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#ifdef RDBSS_TRACKER
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typedef struct _RX_FCBTRACKER_CALLINFO
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{
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ULONG AcquireRelease;
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USHORT SavedTrackerValue;
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USHORT LineNumber;
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PSZ FileName;
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ULONG Flags;
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} RX_FCBTRACKER_CALLINFO, *PRX_FCBTRACKER_CALLINFO;
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#define RDBSS_TRACKER_HISTORY_SIZE 32
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#endif
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#define MRX_CONTEXT_FIELD_COUNT 4
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#if (_WIN32_WINNT >= 0x0600)
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typedef
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NTSTATUS
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(NTAPI *PRX_DISPATCH) (
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_In_ PRX_CONTEXT RxContext,
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_In_ PIRP Irp);
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#else
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typedef
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NTSTATUS
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(NTAPI *PRX_DISPATCH) (
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_In_ PRX_CONTEXT RxContext);
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#endif
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typedef struct _DFS_NAME_CONTEXT_ *PDFS_NAME_CONTEXT;
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typedef struct _NT_CREATE_PARAMETERS
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{
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ACCESS_MASK DesiredAccess;
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LARGE_INTEGER AllocationSize;
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ULONG FileAttributes;
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ULONG ShareAccess;
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ULONG Disposition;
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ULONG CreateOptions;
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PIO_SECURITY_CONTEXT SecurityContext;
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SECURITY_IMPERSONATION_LEVEL ImpersonationLevel;
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PVOID DfsContext;
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PDFS_NAME_CONTEXT DfsNameContext;
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} NT_CREATE_PARAMETERS, *PNT_CREATE_PARAMETERS;
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typedef struct _RX_CONTEXT
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{
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NODE_TYPE_CODE NodeTypeCode;
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NODE_BYTE_SIZE NodeByteSize;
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volatile ULONG ReferenceCount;
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LIST_ENTRY ContextListEntry;
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UCHAR MajorFunction;
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UCHAR MinorFunction;
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BOOLEAN PendingReturned;
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BOOLEAN PostRequest;
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PDEVICE_OBJECT RealDevice;
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PIRP CurrentIrp;
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PIO_STACK_LOCATION CurrentIrpSp;
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PMRX_FCB pFcb;
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PMRX_FOBX pFobx;
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PMRX_SRV_OPEN pRelevantSrvOpen;
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PNON_PAGED_FCB NonPagedFcb;
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PRDBSS_DEVICE_OBJECT RxDeviceObject;
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PETHREAD OriginalThread;
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PETHREAD LastExecutionThread;
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volatile PVOID LockManagerContext;
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PVOID RdbssDbgExtension;
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RX_SCAVENGER_ENTRY ScavengerEntry;
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ULONG SerialNumber;
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ULONG FobxSerialNumber;
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ULONG Flags;
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BOOLEAN FcbResourceAcquired;
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BOOLEAN FcbPagingIoResourceAcquired;
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UCHAR MustSucceedDescriptorNumber;
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union
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{
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struct
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{
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union
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{
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NTSTATUS StoredStatus;
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PVOID StoredStatusAlignment;
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};
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ULONG_PTR InformationToReturn;
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};
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IO_STATUS_BLOCK IoStatusBlock;
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};
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union
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{
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ULONGLONG ForceLonglongAligmentDummyField;
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PVOID MRxContext[MRX_CONTEXT_FIELD_COUNT];
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};
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PVOID WriteOnlyOpenRetryContext;
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PMRX_CALLDOWN MRxCancelRoutine;
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PRX_DISPATCH ResumeRoutine;
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RX_WORK_QUEUE_ITEM WorkQueueItem;
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LIST_ENTRY OverflowListEntry;
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KEVENT SyncEvent;
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LIST_ENTRY BlockedOperations;
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PFAST_MUTEX BlockedOpsMutex;
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LIST_ENTRY RxContextSerializationQLinks;
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union
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{
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struct
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{
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union
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{
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FS_INFORMATION_CLASS FsInformationClass;
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FILE_INFORMATION_CLASS FileInformationClass;
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};
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PVOID Buffer;
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union
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{
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LONG Length;
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LONG LengthRemaining;
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};
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BOOLEAN ReplaceIfExists;
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BOOLEAN AdvanceOnly;
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} Info;
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struct
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{
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UNICODE_STRING SuppliedPathName;
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NET_ROOT_TYPE NetRootType;
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PIO_SECURITY_CONTEXT pSecurityContext;
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} PrefixClaim;
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};
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union
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{
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struct
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{
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NT_CREATE_PARAMETERS NtCreateParameters;
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ULONG ReturnedCreateInformation;
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PWCH CanonicalNameBuffer;
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PRX_PREFIX_ENTRY NetNamePrefixEntry;
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PMRX_SRV_CALL pSrvCall;
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PMRX_NET_ROOT pNetRoot;
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PMRX_V_NET_ROOT pVNetRoot;
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PVOID EaBuffer;
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ULONG EaLength;
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ULONG SdLength;
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ULONG PipeType;
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ULONG PipeReadMode;
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ULONG PipeCompletionMode;
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USHORT Flags;
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NET_ROOT_TYPE Type;
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UCHAR RdrFlags;
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BOOLEAN FcbAcquired;
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BOOLEAN TryForScavengingOnSharingViolation;
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BOOLEAN ScavengingAlreadyTried;
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BOOLEAN ThisIsATreeConnectOpen;
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BOOLEAN TreeConnectOpenDeferred;
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UNICODE_STRING TransportName;
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UNICODE_STRING UserName;
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UNICODE_STRING Password;
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UNICODE_STRING UserDomainName;
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} Create;
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struct
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{
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ULONG FileIndex;
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BOOLEAN RestartScan;
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BOOLEAN ReturnSingleEntry;
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BOOLEAN IndexSpecified;
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BOOLEAN InitialQuery;
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} QueryDirectory;
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struct
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{
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PMRX_V_NET_ROOT pVNetRoot;
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} NotifyChangeDirectory;
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struct
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{
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PUCHAR UserEaList;
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ULONG UserEaListLength;
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ULONG UserEaIndex;
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BOOLEAN RestartScan;
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BOOLEAN ReturnSingleEntry;
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BOOLEAN IndexSpecified;
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} QueryEa;
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struct
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{
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SECURITY_INFORMATION SecurityInformation;
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ULONG Length;
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} QuerySecurity;
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struct
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{
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SECURITY_INFORMATION SecurityInformation;
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PSECURITY_DESCRIPTOR SecurityDescriptor;
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} SetSecurity;
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struct
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{
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ULONG Length;
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PSID StartSid;
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PFILE_GET_QUOTA_INFORMATION SidList;
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ULONG SidListLength;
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BOOLEAN RestartScan;
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BOOLEAN ReturnSingleEntry;
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BOOLEAN IndexSpecified;
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} QueryQuota;
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struct
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{
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ULONG Length;
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} SetQuota;
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struct
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{
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PV_NET_ROOT VNetRoot;
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PSRV_CALL SrvCall;
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PNET_ROOT NetRoot;
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} DosVolumeFunction;
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struct {
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ULONG FlagsForLowIo;
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LOWIO_CONTEXT LowIoContext;
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};
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LUID FsdUid;
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};
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PWCH AlsoCanonicalNameBuffer;
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PUNICODE_STRING LoudCompletionString;
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#ifdef RDBSS_TRACKER
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volatile LONG AcquireReleaseFcbTrackerX;
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volatile ULONG TrackerHistoryPointer;
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RX_FCBTRACKER_CALLINFO TrackerHistory[RDBSS_TRACKER_HISTORY_SIZE];
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#endif
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#if DBG
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ULONG ShadowCritOwner;
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#endif
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} RX_CONTEXT, *PRX_CONTEXT;
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typedef enum
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{
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RX_CONTEXT_FLAG_FROM_POOL = 0x00000001,
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RX_CONTEXT_FLAG_WAIT = 0x00000002,
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RX_CONTEXT_FLAG_WRITE_THROUGH = 0x00000004,
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RX_CONTEXT_FLAG_FLOPPY = 0x00000008,
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RX_CONTEXT_FLAG_RECURSIVE_CALL = 0x00000010,
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RX_CONTEXT_FLAG_THIS_DEVICE_TOP_LEVEL = 0x00000020,
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RX_CONTEXT_FLAG_DEFERRED_WRITE = 0x00000040,
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RX_CONTEXT_FLAG_VERIFY_READ = 0x00000080,
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RX_CONTEXT_FLAG_STACK_IO_CONTEZT = 0x00000100,
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RX_CONTEXT_FLAG_IN_FSP = 0x00000200,
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RX_CONTEXT_FLAG_CREATE_MAILSLOT = 0x00000400,
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RX_CONTEXT_FLAG_MAILSLOT_REPARSE = 0x00000800,
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RX_CONTEXT_FLAG_ASYNC_OPERATION = 0x00001000,
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RX_CONTEXT_FLAG_NO_COMPLETE_FROM_FSP = 0x00002000,
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RX_CONTEXT_FLAG_POST_ON_STABLE_CONDITION = 0x00004000,
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RX_CONTEXT_FLAG_FSP_DELAYED_OVERFLOW_QUEUE = 0x00008000,
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RX_CONTEXT_FLAG_FSP_CRITICAL_OVERFLOW_QUEUE = 0x00010000,
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RX_CONTEXT_FLAG_MINIRDR_INVOKED = 0x00020000,
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RX_CONTEXT_FLAG_WAITING_FOR_RESOURCE = 0x00040000,
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RX_CONTEXT_FLAG_CANCELLED = 0x00080000,
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RX_CONTEXT_FLAG_SYNC_EVENT_WAITERS = 0x00100000,
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RX_CONTEXT_FLAG_NO_PREPOSTING_NEEDED = 0x00200000,
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RX_CONTEXT_FLAG_BYPASS_VALIDOP_CHECK = 0x00400000,
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RX_CONTEXT_FLAG_BLOCKED_PIPE_RESUME = 0x00800000,
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RX_CONTEXT_FLAG_IN_SERIALIZATION_QUEUE = 0x01000000,
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RX_CONTEXT_FLAG_NO_EXCEPTION_BREAKPOINT = 0x02000000,
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RX_CONTEXT_FLAG_NEEDRECONNECT = 0x04000000,
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RX_CONTEXT_FLAG_MUST_SUCCEED = 0x08000000,
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RX_CONTEXT_FLAG_MUST_SUCCEED_NONBLOCKING = 0x10000000,
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RX_CONTEXT_FLAG_MUST_SUCCEED_ALLOCATED = 0x20000000,
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RX_CONTEXT_FLAG_MINIRDR_INITIATED = 0x80000000,
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} RX_CONTEXT_FLAGS;
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#define RX_CONTEXT_PRESERVED_FLAGS (RX_CONTEXT_FLAG_FROM_POOL | \
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RX_CONTEXT_FLAG_MUST_SUCCEED_ALLOCATED | \
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RX_CONTEXT_FLAG_IN_FSP)
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#define RX_CONTEXT_INITIALIZATION_FLAGS (RX_CONTEXT_FLAG_WAIT | \
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RX_CONTEXT_FLAG_MUST_SUCCEED | \
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RX_CONTEXT_FLAG_MUST_SUCCEED_NONBLOCKING)
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typedef enum
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{
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RX_CONTEXT_CREATE_FLAG_UNC_NAME = 0x1,
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RX_CONTEXT_CREATE_FLAG_STRIPPED_TRAILING_BACKSLASH = 0x2,
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RX_CONTEXT_CREATE_FLAG_ADDEDBACKSLASH = 0x4,
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RX_CONTEXT_CREATE_FLAG_REPARSE = 0x8,
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RX_CONTEXT_CREATE_FLAG_SPECIAL_PATH = 0x10,
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} RX_CONTEXT_CREATE_FLAGS;
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typedef enum {
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RXCONTEXT_FLAG4LOWIO_PIPE_OPERATION = 0x1,
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RXCONTEXT_FLAG4LOWIO_PIPE_SYNC_OPERATION = 0x2,
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RXCONTEXT_FLAG4LOWIO_READAHEAD = 0x4,
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RXCONTEXT_FLAG4LOWIO_THIS_READ_ENLARGED = 0x8,
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RXCONTEXT_FLAG4LOWIO_THIS_IO_BUFFERED = 0x10,
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RXCONTEXT_FLAG4LOWIO_LOCK_FCB_RESOURCE_HELD = 0x20,
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RXCONTEXT_FLAG4LOWIO_LOCK_WAS_QUEUED_IN_LOCKMANAGER = 0x40,
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RXCONTEXT_FLAG4LOWIO_THIS_IO_FAST = 0x80,
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RXCONTEXT_FLAG4LOWIO_LOCK_OPERATION_COMPLETED = 0x100,
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RXCONTEXT_FLAG4LOWIO_LOCK_BUFFERED_ON_ENTRY = 0x200
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} RX_CONTEXT_LOWIO_FLAGS;
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#if DBG
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#define RxSaveAndSetExceptionNoBreakpointFlag(R, F) \
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{ \
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F = FlagOn(R->Flags, RX_CONTEXT_FLAG_NO_EXCEPTION_BREAKPOINT); \
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SetFlag(R->Flags, RX_CONTEXT_FLAG_NO_EXCEPTION_BREAKPOINT); \
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}
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#define RxRestoreExceptionNoBreakpointFlag(R, F) \
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{ \
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ClearFlag(R->Flags, RX_CONTEXT_FLAG_NO_EXCEPTION_BREAKPOINT); \
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SetFlag(R->Flags, F); \
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}
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#else
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#define RxSaveAndSetExceptionNoBreakpointFlag(R, F)
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#define RxRestoreExceptionNoBreakpointFlag(R, F)
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#endif
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#if DBG
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VOID
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__RxItsTheSameContext(
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_In_ PRX_CONTEXT RxContext,
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_In_ ULONG CapturedRxContextSerialNumber,
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_In_ ULONG Line,
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_In_ PCSTR File);
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#define RxItsTheSameContext() { __RxItsTheSameContext(RxContext, CapturedRxContextSerialNumber, __LINE__, __FILE__); }
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#else
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#define RxItsTheSameContext() { NOTHING; }
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#endif
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extern NPAGED_LOOKASIDE_LIST RxContextLookasideList;
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#define MINIRDR_CALL_THROUGH(STATUS, DISPATCH, FUNC, ARGLIST) \
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{ \
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ASSERT(DISPATCH); \
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ASSERT(NodeType(DISPATCH) == RDBSS_NTC_MINIRDR_DISPATCH); \
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if (DISPATCH->FUNC == NULL) \
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{ \
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STATUS = STATUS_NOT_IMPLEMENTED; \
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} \
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else \
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{ \
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STATUS = DISPATCH->FUNC ARGLIST; \
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} \
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}
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#define MINIRDR_CALL(STATUS, CONTEXT, DISPATCH, FUNC, ARGLIST) \
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{ \
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ASSERT(DISPATCH); \
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ASSERT(NodeType(DISPATCH) == RDBSS_NTC_MINIRDR_DISPATCH); \
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if (DISPATCH->FUNC == NULL) \
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{ \
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STATUS = STATUS_NOT_IMPLEMENTED; \
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} \
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else \
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{ \
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if (!BooleanFlagOn((CONTEXT)->Flags, RX_CONTEXT_FLAG_CANCELLED)) \
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{ \
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RtlZeroMemory(&((CONTEXT)->MRxContext[0]), \
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sizeof((CONTEXT)->MRxContext)); \
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STATUS = DISPATCH->FUNC ARGLIST; \
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} \
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else \
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{ \
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STATUS = STATUS_CANCELLED; \
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} \
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} \
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}
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#define RxWaitSync(RxContext) \
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(RxContext)->Flags |= RX_CONTEXT_FLAG_SYNC_EVENT_WAITERS; \
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KeWaitForSingleObject(&(RxContext)->SyncEvent, \
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Executive, KernelMode, FALSE, NULL)
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#define RxSignalSynchronousWaiter(RxContext) \
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(RxContext)->Flags &= ~RX_CONTEXT_FLAG_SYNC_EVENT_WAITERS; \
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KeSetEvent(&(RxContext)->SyncEvent, 0, FALSE)
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#define RxInsertContextInSerializationQueue(SerializationQueue, RxContext) \
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(RxContext)->Flags |= RX_CONTEXT_FLAG_IN_SERIALIZATION_QUEUE; \
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InsertTailList(SerializationQueue, &((RxContext)->RxContextSerializationQLinks))
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FORCEINLINE
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PRX_CONTEXT
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RxRemoveFirstContextFromSerializationQueue(
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PLIST_ENTRY SerializationQueue)
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{
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if (IsListEmpty(SerializationQueue))
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{
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return NULL;
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}
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else
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{
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PRX_CONTEXT Context = CONTAINING_RECORD(SerializationQueue->Flink,
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RX_CONTEXT,
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RxContextSerializationQLinks);
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RemoveEntryList(SerializationQueue->Flink);
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Context->RxContextSerializationQLinks.Flink = NULL;
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Context->RxContextSerializationQLinks.Blink = NULL;
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return Context;
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}
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}
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#define RxTransferList(Destination, Source) \
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if (IsListEmpty((Source))) \
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InitializeListHead((Destination)); \
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else \
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{ \
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*(Destination) = *(Source); \
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(Destination)->Flink->Blink = (Destination); \
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(Destination)->Blink->Flink = (Destination); \
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InitializeListHead((Source)); \
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}
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#define RxTransferListWithMutex(Destination, Source, Mutex) \
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{ \
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ExAcquireFastMutex(Mutex); \
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RxTransferList(Destination, Source); \
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ExReleaseFastMutex(Mutex); \
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}
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NTSTATUS
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RxCancelNotifyChangeDirectoryRequestsForVNetRoot(
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PV_NET_ROOT VNetRoot,
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BOOLEAN ForceFilesClosed);
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VOID
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RxCancelNotifyChangeDirectoryRequestsForFobx(
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PFOBX Fobx
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);
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VOID
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NTAPI
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RxInitializeContext(
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_In_ PIRP Irp,
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_In_ PRDBSS_DEVICE_OBJECT RxDeviceObject,
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_In_ ULONG InitialContextFlags,
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_Inout_ PRX_CONTEXT RxContext);
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PRX_CONTEXT
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NTAPI
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RxCreateRxContext(
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_In_ PIRP Irp,
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_In_ PRDBSS_DEVICE_OBJECT RxDeviceObject,
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_In_ ULONG InitialContextFlags);
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VOID
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NTAPI
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RxPrepareContextForReuse(
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_Inout_ PRX_CONTEXT RxContext);
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VOID
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NTAPI
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RxDereferenceAndDeleteRxContext_Real(
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_In_ PRX_CONTEXT RxContext);
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VOID
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NTAPI
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RxReinitializeContext(
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_Inout_ PRX_CONTEXT RxContext);
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#if DBG
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#define RxDereferenceAndDeleteRxContext(RXCONTEXT) \
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{ \
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RxDereferenceAndDeleteRxContext_Real((RXCONTEXT)); \
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(RXCONTEXT) = NULL; \
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}
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#else
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#define RxDereferenceAndDeleteRxContext(RXCONTEXT) \
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{ \
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RxDereferenceAndDeleteRxContext_Real((RXCONTEXT)); \
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}
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#endif
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extern FAST_MUTEX RxContextPerFileSerializationMutex;
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VOID
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NTAPI
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RxResumeBlockedOperations_Serially(
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_Inout_ PRX_CONTEXT RxContext,
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_Inout_ PLIST_ENTRY BlockingIoQ);
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VOID
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RxResumeBlockedOperations_ALL(
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_Inout_ PRX_CONTEXT RxContext);
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#if (_WIN32_WINNT >= 0x0600)
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VOID
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RxCancelBlockingOperation(
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_Inout_ PRX_CONTEXT RxContext,
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_In_ PIRP Irp);
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#else
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VOID
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RxCancelBlockingOperation(
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_Inout_ PRX_CONTEXT RxContext);
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#endif
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VOID
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RxRemoveOperationFromBlockingQueue(
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_Inout_ PRX_CONTEXT RxContext);
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#endif
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