/*++ BUILD Version: 0118    // Increment this if a change has global effects

Copyright (c) 1990-1998  Microsoft Corporation

Module Name:

    wdm.h

Abstract:

    This module defines the WDM types, constants, and functions that are
    exposed to device drivers.

Revision History:

--*/

#ifndef _WDMDDK_
#define _WDMDDK_
#define _NTDDK_

#define NT_INCLUDED
#define _CTYPE_DISABLE_MACROS

#include <excpt.h>
#include <ntdef.h>
#include <ntstatus.h>
#include <bugcodes.h>
#include <ntiologc.h>

//
// Define types that are not exported.
//

typedef struct _KTHREAD *PKTHREAD;
typedef struct _ETHREAD *PETHREAD;
typedef struct _EPROCESS *PEPROCESS;
typedef struct _KINTERRUPT *PKINTERRUPT;
typedef struct _IO_TIMER *PIO_TIMER;

typedef struct _OBJECT_TYPE *POBJECT_TYPE;
typedef struct _CALLBACK_OBJECT *PCALLBACK_OBJECT;

typedef struct _SECURITY_QUALITY_OF_SERVICE *PSECURITY_QUALITY_OF_SERVICE;
typedef struct _ACCESS_STATE *PACCESS_STATE;

#if defined(_M_ALPHA)
void *__rdthread(void);
#pragma intrinsic(__rdthread)

unsigned char __swpirql(unsigned char);
#pragma intrinsic(__swpirql)

void *__rdpcr(void);
#pragma intrinsic(__rdpcr)
#define PCR ((PKPCR)__rdpcr())

#define KeGetCurrentThread() ((struct _KTHREAD *) __rdthread())
#endif // defined(_M_ALPHA)

#if defined(_M_IX86)
PKTHREAD NTAPI KeGetCurrentThread();
#endif // defined(_M_IX86)

#if defined(_M_IA64)
#define KIPCR 0xfffff000
#define PCR ((volatile KPCR * const)KIPCR)
#endif // defined(_M_IA64)
#ifndef FAR
#define FAR
#endif

#define PsGetCurrentProcess() IoGetCurrentProcess()
#define PsGetCurrentThread() ((PETHREAD) (KeGetCurrentThread()))
extern PCCHAR KeNumberProcessors;


typedef union _SLIST_HEADER {
    ULONGLONG Alignment;
    struct {
        SINGLE_LIST_ENTRY Next;
        USHORT Depth;
        USHORT Sequence;
    };
} SLIST_HEADER, *PSLIST_HEADER;


#define POOL_TAGGING 1

#ifndef DBG
#define DBG 0
#endif

#if DBG
#define IF_DEBUG if (TRUE)
#else
#define IF_DEBUG if (FALSE)
#endif

#if DEVL


extern ULONG NtGlobalFlag;

#define IF_NTOS_DEBUG( FlagName ) \
    if (NtGlobalFlag & (FLG_ ## FlagName))

#else
#define IF_NTOS_DEBUG( FlagName ) if (FALSE)
#endif

//
// Kernel definitions that need to be here for forward reference purposes
//


//
// Processor modes.
//

typedef CCHAR KPROCESSOR_MODE;

typedef enum _MODE {
    KernelMode,
    UserMode,
    MaximumMode
} MODE;


//
// APC function types
//

//
// Put in an empty definition for the KAPC so that the
// routines can reference it before it is declared.
//

struct _KAPC;

typedef
VOID
(*PKNORMAL_ROUTINE) (
    IN PVOID NormalContext,
    IN PVOID SystemArgument1,
    IN PVOID SystemArgument2
    );

typedef
VOID
(*PKKERNEL_ROUTINE) (
    IN struct _KAPC *Apc,
    IN OUT PKNORMAL_ROUTINE *NormalRoutine,
    IN OUT PVOID *NormalContext,
    IN OUT PVOID *SystemArgument1,
    IN OUT PVOID *SystemArgument2
    );

typedef
VOID
(*PKRUNDOWN_ROUTINE) (
    IN struct _KAPC *Apc
    );

typedef
BOOLEAN
(*PKSYNCHRONIZE_ROUTINE) (
    IN PVOID SynchronizeContext
    );

typedef
BOOLEAN
(*PKTRANSFER_ROUTINE) (
    VOID
    );

//
//
// Asynchronous Procedure Call (APC) object
//

typedef struct _KAPC {
    CSHORT Type;
    CSHORT Size;
    ULONG Spare0;
    struct _KTHREAD *Thread;
    LIST_ENTRY ApcListEntry;
    PKKERNEL_ROUTINE KernelRoutine;
    PKRUNDOWN_ROUTINE RundownRoutine;
    PKNORMAL_ROUTINE NormalRoutine;
    PVOID NormalContext;

    //
    // N.B. The following two members MUST be together.
    //

    PVOID SystemArgument1;
    PVOID SystemArgument2;
    CCHAR ApcStateIndex;
    KPROCESSOR_MODE ApcMode;
    BOOLEAN Inserted;
} KAPC, *PKAPC, *RESTRICTED_POINTER PRKAPC;


//
// DPC routine
//

struct _KDPC;

typedef
VOID
(*PKDEFERRED_ROUTINE) (
    IN struct _KDPC *Dpc,
    IN PVOID DeferredContext,
    IN PVOID SystemArgument1,
    IN PVOID SystemArgument2
    );

//
// Define DPC importance.
//
// LowImportance - Queue DPC at end of target DPC queue.
// MediumImportance - Queue DPC at front of target DPC queue.
// HighImportance - Queue DPC at front of target DPC DPC queue and interrupt
//     the target processor if the DPC is targeted and the system is an MP
//     system.
//
// N.B. If the target processor is the same as the processor on which the DPC
//      is queued on, then the processor is always interrupted if the DPC queue
//      was previously empty.
//

typedef enum _KDPC_IMPORTANCE {
    LowImportance,
    MediumImportance,
    HighImportance
} KDPC_IMPORTANCE;

//
// Deferred Procedure Call (DPC) object
//

typedef struct _KDPC {
    CSHORT Type;
    UCHAR Number;
    UCHAR Importance;
    LIST_ENTRY DpcListEntry;
    PKDEFERRED_ROUTINE DeferredRoutine;
    PVOID DeferredContext;
    PVOID SystemArgument1;
    PVOID SystemArgument2;
    PULONG Lock;
} KDPC, *PKDPC, *RESTRICTED_POINTER PRKDPC;

//
// Interprocessor interrupt worker routine function prototype.
//

typedef PULONG PKIPI_CONTEXT;

typedef
VOID
(*PKIPI_WORKER)(
    IN PKIPI_CONTEXT PacketContext,
    IN PVOID Parameter1,
    IN PVOID Parameter2,
    IN PVOID Parameter3
    );

//
// Define interprocessor interrupt performance counters.
//

typedef struct _KIPI_COUNTS {
    ULONG Freeze;
    ULONG Packet;
    ULONG DPC;
    ULONG APC;
    ULONG FlushSingleTb;
    ULONG FlushMultipleTb;
    ULONG FlushEntireTb;
    ULONG GenericCall;
    ULONG ChangeColor;
    ULONG SweepDcache;
    ULONG SweepIcache;
    ULONG SweepIcacheRange;
    ULONG FlushIoBuffers;
    ULONG GratuitousDPC;
} KIPI_COUNTS, *PKIPI_COUNTS;

#if defined(NT_UP)

#define HOT_STATISTIC(a) a

#else

#define HOT_STATISTIC(a) (KeGetCurrentPrcb()->a)

#endif

//
// I/O system definitions.
//
// Define a Memory Descriptor List (MDL)
//
// An MDL describes pages in a virtual buffer in terms of physical pages.  The
// pages associated with the buffer are described in an array that is allocated
// just after the MDL header structure itself.  In a future compiler this will
// be placed at:
//
//      ULONG Pages[];
//
// Until this declaration is permitted, however, one simply calculates the
// base of the array by adding one to the base MDL pointer:
//
//      Pages = (PULONG) (Mdl + 1);
//
// Notice that while in the context of the subject thread, the base virtual
// address of a buffer mapped by an MDL may be referenced using the following:
//
//      Mdl->StartVa | Mdl->ByteOffset
//
// NOTE: If MDL_64_BIT_VA flag is set, the StartVa field contains
//       the Virtual Page Number (VirtualAddress / PAGE_SIZE).
//       HENCE, the reference to the base virtual address becomes:
//
//        (PVOID64)(((LONG LONG)Mdl->StartVa << PAGE_SHIFT) | Mdl->ByteOffset)
//


typedef struct _MDL {
    struct _MDL *Next;
    CSHORT Size;
    CSHORT MdlFlags;
    struct _EPROCESS *Process;
    PVOID MappedSystemVa;
    PVOID StartVa;
    ULONG ByteCount;
    ULONG ByteOffset;
} MDL, *PMDL;

#define MDL_MAPPED_TO_SYSTEM_VA     0x0001
#define MDL_PAGES_LOCKED            0x0002
#define MDL_SOURCE_IS_NONPAGED_POOL 0x0004
#define MDL_ALLOCATED_FIXED_SIZE    0x0008
#define MDL_PARTIAL                 0x0010
#define MDL_PARTIAL_HAS_BEEN_MAPPED 0x0020
#define MDL_IO_PAGE_READ            0x0040
#define MDL_WRITE_OPERATION         0x0080
#define MDL_PARENT_MAPPED_SYSTEM_VA 0x0100
#define MDL_LOCK_HELD               0x0200
#define MDL_SCATTER_GATHER_VA       0x0400
#define MDL_IO_SPACE                0x0800
#define MDL_NETWORK_HEADER          0x1000
#define MDL_MAPPING_CAN_FAIL        0x2000
#define MDL_ALLOCATED_MUST_SUCCEED  0x4000
#define MDL_64_BIT_VA               0x8000


#define MDL_MAPPING_FLAGS (MDL_MAPPED_TO_SYSTEM_VA     | \
                           MDL_PAGES_LOCKED            | \
                           MDL_SOURCE_IS_NONPAGED_POOL | \
                           MDL_PARTIAL_HAS_BEEN_MAPPED | \
                           MDL_PARENT_MAPPED_SYSTEM_VA | \
                           MDL_LOCK_HELD               | \
                           MDL_SYSTEM_VA               | \
                           MDL_IO_SPACE )


//
// switch to DBG when appropriate
//

#if DBG
#define PAGED_CODE() \
    if (KeGetCurrentIrql() > APC_LEVEL) { \
    KdPrint(( "EX: Pageable code called at IRQL %d\n", KeGetCurrentIrql() )); \
        ASSERT(FALSE); \
        }
#else
#define PAGED_CODE()
#endif

//
//  Define an access token from a programmer's viewpoint.  The structure is
//  completely opaque and the programer is only allowed to have pointers
//  to tokens.
//

typedef PVOID PACCESS_TOKEN;            

//
// Pointer to a SECURITY_DESCRIPTOR  opaque data type.
//

typedef PVOID PSECURITY_DESCRIPTOR;     

//
// Define a pointer to the Security ID data type (an opaque data type)
//

typedef PVOID PSID;     

typedef ULONG ACCESS_MASK;
typedef ACCESS_MASK *PACCESS_MASK;


//
//  The following are masks for the predefined standard access types
//

#define DELETE                           (0x00010000L)
#define READ_CONTROL                     (0x00020000L)
#define WRITE_DAC                        (0x00040000L)
#define WRITE_OWNER                      (0x00080000L)
#define SYNCHRONIZE                      (0x00100000L)

#define STANDARD_RIGHTS_REQUIRED         (0x000F0000L)

#define STANDARD_RIGHTS_READ             (READ_CONTROL)
#define STANDARD_RIGHTS_WRITE            (READ_CONTROL)
#define STANDARD_RIGHTS_EXECUTE          (READ_CONTROL)

#define STANDARD_RIGHTS_ALL              (0x001F0000L)

#define SPECIFIC_RIGHTS_ALL              (0x0000FFFFL)

//
// AccessSystemAcl access type
//

#define ACCESS_SYSTEM_SECURITY           (0x01000000L)

//
// MaximumAllowed access type
//

#define MAXIMUM_ALLOWED                  (0x02000000L)

//
//  These are the generic rights.
//

#define GENERIC_READ                     (0x80000000L)
#define GENERIC_WRITE                    (0x40000000L)
#define GENERIC_EXECUTE                  (0x20000000L)
#define GENERIC_ALL                      (0x10000000L)


//
//  Define the generic mapping array.  This is used to denote the
//  mapping of each generic access right to a specific access mask.
//

typedef struct _GENERIC_MAPPING {
    ACCESS_MASK GenericRead;
    ACCESS_MASK GenericWrite;
    ACCESS_MASK GenericExecute;
    ACCESS_MASK GenericAll;
} GENERIC_MAPPING;
typedef GENERIC_MAPPING *PGENERIC_MAPPING;


#define LOW_PRIORITY 0              // Lowest thread priority level
#define LOW_REALTIME_PRIORITY 16    // Lowest realtime priority level
#define HIGH_PRIORITY 31            // Highest thread priority level
#define MAXIMUM_PRIORITY 32         // Number of thread priority levels

#define MAXIMUM_WAIT_OBJECTS 64     // Maximum number of wait objects

#define MAXIMUM_SUSPEND_COUNT MAXCHAR // Maximum times thread can be suspended


//
// Thread affinity
//

typedef ULONG KAFFINITY;
typedef KAFFINITY *PKAFFINITY;

//
// Thread priority
//

typedef LONG KPRIORITY;

//
// Spin Lock
//


typedef ULONG KSPIN_LOCK;

typedef KSPIN_LOCK *PKSPIN_LOCK;


//
// Interrupt routine (first level dispatch)
//

typedef
VOID
(*PKINTERRUPT_ROUTINE) (
    VOID
    );

//
// Profile source types
//
typedef enum _KPROFILE_SOURCE {
    ProfileTime,
    ProfileAlignmentFixup,
    ProfileTotalIssues,
    ProfilePipelineDry,
    ProfileLoadInstructions,
    ProfilePipelineFrozen,
    ProfileBranchInstructions,
    ProfileTotalNonissues,
    ProfileDcacheMisses,
    ProfileIcacheMisses,
    ProfileCacheMisses,
    ProfileBranchMispredictions,
    ProfileStoreInstructions,
    ProfileFpInstructions,
    ProfileIntegerInstructions,
    Profile2Issue,
    Profile3Issue,
    Profile4Issue,
    ProfileSpecialInstructions,
    ProfileTotalCycles,
    ProfileIcacheIssues,
    ProfileDcacheAccesses,
    ProfileMemoryBarrierCycles,
    ProfileLoadLinkedIssues,
    ProfileMaximum
} KPROFILE_SOURCE;

//
// for move macros
//
#ifdef _MAC
#ifndef _INC_STRING
#include <string.h>
#endif /* _INC_STRING */
#else
#include <string.h>
#endif // _MAC

//
// If debugging support enabled, define an ASSERT macro that works.  Otherwise
// define the ASSERT macro to expand to an empty expression.
//

#if DBG
NTSYSAPI
VOID
NTAPI
RtlAssert(
    PVOID FailedAssertion,
    PVOID FileName,
    ULONG LineNumber,
    PCHAR Message
    );

#define ASSERT( exp ) \
    if (!(exp)) \
        RtlAssert( #exp, __FILE__, __LINE__, NULL )

#define ASSERTMSG( msg, exp ) \
    if (!(exp)) \
        RtlAssert( #exp, __FILE__, __LINE__, msg )

#else
#define ASSERT( exp )
#define ASSERTMSG( msg, exp )
#endif // DBG

//
//  Doubly-linked list manipulation routines.  Implemented as macros
//  but logically these are procedures.
//

//
//  VOID
//  InitializeListHead(
//      PLIST_ENTRY ListHead
//      );
//

#define InitializeListHead(ListHead) (\
    (ListHead)->Flink = (ListHead)->Blink = (ListHead))

//
//  BOOLEAN
//  IsListEmpty(
//      PLIST_ENTRY ListHead
//      );
//

#define IsListEmpty(ListHead) \
    ((ListHead)->Flink == (ListHead))

//
//  PLIST_ENTRY
//  RemoveHeadList(
//      PLIST_ENTRY ListHead
//      );
//

#define RemoveHeadList(ListHead) \
    (ListHead)->Flink;\
    {RemoveEntryList((ListHead)->Flink)}

//
//  PLIST_ENTRY
//  RemoveTailList(
//      PLIST_ENTRY ListHead
//      );
//

#define RemoveTailList(ListHead) \
    (ListHead)->Blink;\
    {RemoveEntryList((ListHead)->Blink)}

//
//  VOID
//  RemoveEntryList(
//      PLIST_ENTRY Entry
//      );
//

#define RemoveEntryList(Entry) {\
    PLIST_ENTRY _EX_Blink;\
    PLIST_ENTRY _EX_Flink;\
    _EX_Flink = (Entry)->Flink;\
    _EX_Blink = (Entry)->Blink;\
    _EX_Blink->Flink = _EX_Flink;\
    _EX_Flink->Blink = _EX_Blink;\
    }

//
//  VOID
//  InsertTailList(
//      PLIST_ENTRY ListHead,
//      PLIST_ENTRY Entry
//      );
//

#define InsertTailList(ListHead,Entry) {\
    PLIST_ENTRY _EX_Blink;\
    PLIST_ENTRY _EX_ListHead;\
    _EX_ListHead = (ListHead);\
    _EX_Blink = _EX_ListHead->Blink;\
    (Entry)->Flink = _EX_ListHead;\
    (Entry)->Blink = _EX_Blink;\
    _EX_Blink->Flink = (Entry);\
    _EX_ListHead->Blink = (Entry);\
    }

//
//  VOID
//  InsertHeadList(
//      PLIST_ENTRY ListHead,
//      PLIST_ENTRY Entry
//      );
//

#define InsertHeadList(ListHead,Entry) {\
    PLIST_ENTRY _EX_Flink;\
    PLIST_ENTRY _EX_ListHead;\
    _EX_ListHead = (ListHead);\
    _EX_Flink = _EX_ListHead->Flink;\
    (Entry)->Flink = _EX_Flink;\
    (Entry)->Blink = _EX_ListHead;\
    _EX_Flink->Blink = (Entry);\
    _EX_ListHead->Flink = (Entry);\
    }

//
//
//  PSINGLE_LIST_ENTRY
//  PopEntryList(
//      PSINGLE_LIST_ENTRY ListHead
//      );
//

#define PopEntryList(ListHead) \
    (ListHead)->Next;\
    {\
        PSINGLE_LIST_ENTRY FirstEntry;\
        FirstEntry = (ListHead)->Next;\
        if (FirstEntry != NULL) {     \
            (ListHead)->Next = FirstEntry->Next;\
        }                             \
    }


//
//  VOID
//  PushEntryList(
//      PSINGLE_LIST_ENTRY ListHead,
//      PSINGLE_LIST_ENTRY Entry
//      );
//

#define PushEntryList(ListHead,Entry) \
    (Entry)->Next = (ListHead)->Next; \
    (ListHead)->Next = (Entry)

//
// Subroutines for dealing with the Registry
//

typedef NTSTATUS (*PRTL_QUERY_REGISTRY_ROUTINE)(
    IN PWSTR ValueName,
    IN ULONG ValueType,
    IN PVOID ValueData,
    IN ULONG ValueLength,
    IN PVOID Context,
    IN PVOID EntryContext
    );

typedef struct _RTL_QUERY_REGISTRY_TABLE {
    PRTL_QUERY_REGISTRY_ROUTINE QueryRoutine;
    ULONG Flags;
    PWSTR Name;
    PVOID EntryContext;
    ULONG DefaultType;
    PVOID DefaultData;
    ULONG DefaultLength;

} RTL_QUERY_REGISTRY_TABLE, *PRTL_QUERY_REGISTRY_TABLE;


//
// The following flags specify how the Name field of a RTL_QUERY_REGISTRY_TABLE
// entry is interpreted.  A NULL name indicates the end of the table.
//

#define RTL_QUERY_REGISTRY_SUBKEY   0x00000001  // Name is a subkey and remainder of
                                                // table or until next subkey are value
                                                // names for that subkey to look at.

#define RTL_QUERY_REGISTRY_TOPKEY   0x00000002  // Reset current key to original key for
                                                // this and all following table entries.

#define RTL_QUERY_REGISTRY_REQUIRED 0x00000004  // Fail if no match found for this table
                                                // entry.

#define RTL_QUERY_REGISTRY_NOVALUE  0x00000008  // Used to mark a table entry that has no
                                                // value name, just wants a call out, not
                                                // an enumeration of all values.

#define RTL_QUERY_REGISTRY_NOEXPAND 0x00000010  // Used to suppress the expansion of
                                                // REG_MULTI_SZ into multiple callouts or
                                                // to prevent the expansion of environment
                                                // variable values in REG_EXPAND_SZ

#define RTL_QUERY_REGISTRY_DIRECT   0x00000020  // QueryRoutine field ignored.  EntryContext
                                                // field points to location to store value.
                                                // For null terminated strings, EntryContext
                                                // points to UNICODE_STRING structure that
                                                // that describes maximum size of buffer.
                                                // If .Buffer field is NULL then a buffer is
                                                // allocated.
                                                //

#define RTL_QUERY_REGISTRY_DELETE   0x00000040  // Used to delete value keys after they
                                                // are queried.

NTSYSAPI
NTSTATUS
NTAPI
RtlQueryRegistryValues(
    IN ULONG RelativeTo,
    IN PCWSTR Path,
    IN PRTL_QUERY_REGISTRY_TABLE QueryTable,
    IN PVOID Context,
    IN PVOID Environment OPTIONAL
    );

NTSYSAPI
NTSTATUS
NTAPI
RtlWriteRegistryValue(
    IN ULONG RelativeTo,
    IN PCWSTR Path,
    IN PCWSTR ValueName,
    IN ULONG ValueType,
    IN PVOID ValueData,
    IN ULONG ValueLength
    );

NTSYSAPI
NTSTATUS
NTAPI
RtlDeleteRegistryValue(
    IN ULONG RelativeTo,
    IN PCWSTR Path,
    IN PCWSTR ValueName
    );

//
// The following values for the RelativeTo parameter determine what the
// Path parameter to RtlQueryRegistryValues is relative to.
//

#define RTL_REGISTRY_ABSOLUTE     0   // Path is a full path
#define RTL_REGISTRY_SERVICES     1   // \Registry\Machine\System\CurrentControlSet\Services
#define RTL_REGISTRY_CONTROL      2   // \Registry\Machine\System\CurrentControlSet\Control
#define RTL_REGISTRY_WINDOWS_NT   3   // \Registry\Machine\Software\Microsoft\Windows NT\CurrentVersion
#define RTL_REGISTRY_DEVICEMAP    4   // \Registry\Machine\Hardware\DeviceMap
#define RTL_REGISTRY_USER         5   // \Registry\User\CurrentUser
#define RTL_REGISTRY_MAXIMUM      6
#define RTL_REGISTRY_HANDLE       0x40000000    // Low order bits are registry handle
#define RTL_REGISTRY_OPTIONAL     0x80000000    // Indicates the key node is optional


NTSYSAPI
NTSTATUS
NTAPI
RtlIntegerToUnicodeString (
    ULONG Value,
    ULONG Base,
    PUNICODE_STRING String
    );

NTSYSAPI
NTSTATUS
NTAPI
RtlUnicodeStringToInteger (
    PUNICODE_STRING String,
    ULONG Base,
    PULONG Value
    );


//
//  String manipulation routines
//

#ifdef _NTSYSTEM_

#define NLS_MB_CODE_PAGE_TAG NlsMbCodePageTag
#define NLS_MB_OEM_CODE_PAGE_TAG NlsMbOemCodePageTag

#else

#define NLS_MB_CODE_PAGE_TAG (*NlsMbCodePageTag)
#define NLS_MB_OEM_CODE_PAGE_TAG (*NlsMbOemCodePageTag)

#endif // _NTSYSTEM_

extern BOOLEAN NLS_MB_CODE_PAGE_TAG;     // TRUE -> Multibyte CP, FALSE -> Singlebyte
extern BOOLEAN NLS_MB_OEM_CODE_PAGE_TAG; // TRUE -> Multibyte CP, FALSE -> Singlebyte

NTSYSAPI
VOID
NTAPI
RtlInitString(
    PSTRING DestinationString,
    PCSZ SourceString
    );

NTSYSAPI
VOID
NTAPI
RtlInitAnsiString(
    PANSI_STRING DestinationString,
    PCSZ SourceString
    );

NTSYSAPI
VOID
NTAPI
RtlInitUnicodeString(
    PUNICODE_STRING DestinationString,
    PCWSTR SourceString
    );

//
// NLS String functions
//

NTSYSAPI
NTSTATUS
NTAPI
RtlAnsiStringToUnicodeString(
    PUNICODE_STRING DestinationString,
    PANSI_STRING SourceString,
    BOOLEAN AllocateDestinationString
    );


NTSYSAPI
NTSTATUS
NTAPI
RtlUnicodeStringToAnsiString(
    PANSI_STRING DestinationString,
    PUNICODE_STRING SourceString,
    BOOLEAN AllocateDestinationString
    );


NTSYSAPI
LONG
NTAPI
RtlCompareUnicodeString(
    PUNICODE_STRING String1,
    PUNICODE_STRING String2,
    BOOLEAN CaseInSensitive
    );

NTSYSAPI
BOOLEAN
NTAPI
RtlEqualUnicodeString(
    const UNICODE_STRING *String1,
    const UNICODE_STRING *String2,
    BOOLEAN CaseInSensitive
    );


NTSYSAPI
VOID
NTAPI
RtlCopyUnicodeString(
    PUNICODE_STRING DestinationString,
    PUNICODE_STRING SourceString
    );

NTSYSAPI
NTSTATUS
NTAPI
RtlAppendUnicodeStringToString (
    PUNICODE_STRING Destination,
    PUNICODE_STRING Source
    );

NTSYSAPI
NTSTATUS
NTAPI
RtlAppendUnicodeToString (
    PUNICODE_STRING Destination,
    PCWSTR Source
    );


NTSYSAPI
VOID
NTAPI
RtlFreeUnicodeString(
    PUNICODE_STRING UnicodeString
    );

NTSYSAPI
VOID
NTAPI
RtlFreeAnsiString(
    PANSI_STRING AnsiString
    );


NTSYSAPI
ULONG
NTAPI
RtlxAnsiStringToUnicodeSize(
    PANSI_STRING AnsiString
    );

//
//  NTSYSAPI
//  ULONG
//  NTAPI
//  RtlAnsiStringToUnicodeSize(
//      PANSI_STRING AnsiString
//      );
//

#define RtlAnsiStringToUnicodeSize(STRING) (                 \
    NLS_MB_CODE_PAGE_TAG ?                                   \
    RtlxAnsiStringToUnicodeSize(STRING) :                    \
    ((STRING)->Length + sizeof((UCHAR)NULL)) * sizeof(WCHAR) \
)


#ifndef EXTERN_C
    #ifdef __cplusplus
        #define EXTERN_C    extern "C"
    #else // !defined(__cplusplus)
        #define EXTERN_C    extern
    #endif // !defined(__cplusplus)
#endif // !defined(EXTERN_C)

#ifndef DEFINE_GUID
#ifndef INITGUID
#define DEFINE_GUID(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
    EXTERN_C const GUID FAR name
#else // !defined(INITGUID)

#define DEFINE_GUID(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
        EXTERN_C const GUID name \
                = { l, w1, w2, { b1, b2,  b3,  b4,  b5,  b6,  b7,  b8 } }
#endif // !defined(INITGUID)
#endif // !defined(DEFINE_GUID)

#ifndef DEFINE_GUIDEX
    #define DEFINE_GUIDEX(name) EXTERN_C const CDECL GUID name
#endif // !defined(DEFINE_GUIDEX)

#ifndef STATICGUIDOF
    #define STATICGUIDOF(guid) STATIC_##guid
#endif // !defined(STATICGUIDOF)

#ifndef GUID_DEFINED
    #define GUID_DEFINED
    typedef struct _GUID {
        ULONG   Data1;
        USHORT  Data2;
        USHORT  Data3;
        UCHAR   Data4[8];
    } GUID;
#endif // !defined(GUID_DEFINED)

#ifndef __IID_DEFINED__
    #define __IID_DEFINED__

    typedef GUID IID;
    typedef IID *LPIID;
    #define IID_NULL            GUID_NULL
    #define IsEqualIID(riid1, riid2) IsEqualGUID(riid1, riid2)
    typedef GUID CLSID;
    typedef CLSID *LPCLSID;
    #define CLSID_NULL          GUID_NULL
    #define IsEqualCLSID(rclsid1, rclsid2) IsEqualGUID(rclsid1, rclsid2)
    typedef GUID FMTID;
    typedef FMTID *LPFMTID;
    #define FMTID_NULL          GUID_NULL
    #define IsEqualFMTID(rfmtid1, rfmtid2) IsEqualGUID(rfmtid1, rfmtid2)

    #ifdef __cplusplus
        #ifndef _REFGUID_DEFINED
            #define _REFGUID_DEFINED
            #define REFGUID const GUID &
        #endif // !_REFGUID_DEFINED
    #else // !__cplusplus
        #ifndef _REFGUID_DEFINED
            #define _REFGUID_DEFINED
            #define REFGUID const GUID * const
        #endif // !_REFGUID_DEFINED
    #endif // !__cplusplus

    #ifdef __cplusplus
        #ifndef _REFIID_DEFINED
            #define _REFIID_DEFINED
            #define REFIID const IID &
        #endif // !_REFIID_DEFINED
    #else // !__cplusplus
        #ifndef _REFIID_DEFINED
            #define _REFIID_DEFINED
            #define REFIID const IID * const
        #endif // !_REFIID_DEFINED
    #endif // !__cplusplus

    #ifdef __cplusplus
        #ifndef _REFCLSID_DEFINED
            #define _REFCLSID_DEFINED
            #define REFCLSID const IID &
        #endif // !_REFCLSID_DEFINED
    #else // !__cplusplus
        #ifndef _REFCLSID_DEFINED
            #define _REFCLSID_DEFINED
            #define REFCLSID const IID * const
        #endif // !_REFCLSID_DEFINED
    #endif // !__cplusplus

    #ifdef __cplusplus
        #ifndef _REFFMTID_DEFINED
            #define _REFFMTID_DEFINED
            #define REFFMTID const IID &
        #endif // !_REFFMTID_DEFINED
    #else // !__cplusplus
        #ifndef _REFFMTID_DEFINED
            #define _REFFMTID_DEFINED
            #define REFFMTID const IID * const
        #endif // !_REFFMTID_DEFINED
    #endif // !__cplusplus

    #if defined(_NTDDK_) || defined(_NTHAL_)
        #ifdef __cplusplus
            inline int IsEqualGUID(REFGUID guid1, REFGUID guid2)
            {
                return !memcmp(&guid1, &guid2, sizeof(GUID));
            }
        #else // !__cplusplus
            #define IsEqualGUID(guid1, guid2) \
                (!memcmp((guid1), (guid2), sizeof(GUID)))
        #endif // !__cplusplus
    #endif // _NTDDK_

#endif // !__IID_DEFINED__

#ifndef __IID_ALIGNED__
    #define __IID_ALIGNED__
    #ifdef __cplusplus
        inline int IsEqualGUIDAligned(REFGUID guid1, REFGUID guid2)
        {
            return ((*(PLONGLONG)(&guid1) == *(PLONGLONG)(&guid2)) && (*((PLONGLONG)(&guid1) + 1) == *((PLONGLONG)(&guid2) + 1)));
        }
    #else // !__cplusplus
        #define IsEqualGUIDAligned(guid1, guid2) \
            ((*(PLONGLONG)(guid1) == *(PLONGLONG)(guid2)) && (*((PLONGLONG)(guid1) + 1) == *((PLONGLONG)(guid2) + 1)))
    #endif // !__cplusplus
#endif // !__IID_ALIGNED__

NTSYSAPI
NTSTATUS
NTAPI
RtlStringFromGUID(
    IN REFGUID Guid,
    OUT PUNICODE_STRING GuidString
    );

NTSYSAPI
NTSTATUS
NTAPI
RtlGUIDFromString(
    IN PUNICODE_STRING GuidString,
    OUT GUID* Guid
    );

//
// Fast primitives to compare, move, and zero memory
//


#define RtlEqualMemory(Destination,Source,Length) (!memcmp((Destination),(Source),(Length)))
#define RtlMoveMemory(Destination,Source,Length) memmove((Destination),(Source),(Length))
#define RtlCopyMemory(Destination,Source,Length) memcpy((Destination),(Source),(Length))
#define RtlFillMemory(Destination,Length,Fill) memset((Destination),(Fill),(Length))
#define RtlZeroMemory(Destination,Length) memset((Destination),0,(Length))


NTSYSAPI
ULONG
NTAPI
RtlCompareMemory (
    const VOID *Source1,
    const VOID *Source2,
    ULONG Length
    );

#if defined(_M_ALPHA)

//
// Guaranteed byte granularity memory copy function.
//

NTSYSAPI
VOID
NTAPI
RtlCopyBytes (
   PVOID Destination,
   CONST VOID *Source,
   ULONG Length
   );

//
// Guaranteed byte granularity memory zero function.
//

NTSYSAPI
VOID
NTAPI
RtlZeroBytes (
   PVOID Destination,
   ULONG Length
   );

//
// Guaranteed byte granularity memory fill function.
//

NTSYSAPI
VOID
NTAPI
RtlFillBytes (
    PVOID Destination,
    ULONG Length,
    UCHAR Fill
    );

#else

#define RtlCopyBytes RtlCopyMemory
#define RtlZeroBytes RtlZeroMemory
#define RtlFillBytes RtlFillMemory

#endif

//
// Define kernel debugger print prototypes and macros.
//
// N.B. The following function cannot be directly imported because there are
//      a few places in the source tree where this function is redefined.
//

VOID
NTAPI
DbgBreakPoint(
    VOID
    );


#define DBG_STATUS_CONTROL_C        1
#define DBG_STATUS_SYSRQ            2
#define DBG_STATUS_BUGCHECK_FIRST   3
#define DBG_STATUS_BUGCHECK_SECOND  4
#define DBG_STATUS_FATAL            5

#if DBG

#define KdPrint(_x_) DbgPrint _x_
#define KdBreakPoint() DbgBreakPoint()


#else

#define KdPrint(_x_)
#define KdBreakPoint()

#endif

#ifndef _DBGNT_

ULONG
_cdecl
DbgPrint(
    PCH Format,
    ...
    );

#endif // _DBGNT_
//
// Large integer arithmetic routines.
//

#if defined(MIDL_PASS) || defined(__cplusplus) || !defined(_M_IX86)

//
// Large integer add - 64-bits + 64-bits -> 64-bits
//

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlLargeIntegerAdd (
    LARGE_INTEGER Addend1,
    LARGE_INTEGER Addend2
    );

//
// Enlarged integer multiply - 32-bits * 32-bits -> 64-bits
//

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlEnlargedIntegerMultiply (
    LONG Multiplicand,
    LONG Multiplier
    );

//
// Unsigned enlarged integer multiply - 32-bits * 32-bits -> 64-bits
//

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlEnlargedUnsignedMultiply (
    ULONG Multiplicand,
    ULONG Multiplier
    );

//
// Enlarged integer divide - 64-bits / 32-bits > 32-bits
//

NTSYSAPI
ULONG
NTAPI
RtlEnlargedUnsignedDivide (
    IN ULARGE_INTEGER Dividend,
    IN ULONG Divisor,
    IN PULONG Remainder
    );


//
// Large integer negation - -(64-bits)
//

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlLargeIntegerNegate (
    LARGE_INTEGER Subtrahend
    );

//
// Large integer subtract - 64-bits - 64-bits -> 64-bits.
//

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlLargeIntegerSubtract (
    LARGE_INTEGER Minuend,
    LARGE_INTEGER Subtrahend
    );

#else

#pragma warning(disable:4035)               // re-enable below

//
// Large integer add - 64-bits + 64-bits -> 64-bits
//

__inline LARGE_INTEGER
NTAPI
RtlLargeIntegerAdd (
    LARGE_INTEGER Addend1,
    LARGE_INTEGER Addend2
    )
{
    __asm {
        mov     eax,Addend1.LowPart     ; (eax)=add1.low
        mov     edx,Addend1.HighPart    ; (edx)=add1.hi
        add     eax,Addend2.LowPart     ; (eax)=sum.low
        adc     edx,Addend2.HighPart    ; (edx)=sum.hi
    }
}

//
// Enlarged integer multiply - 32-bits * 32-bits -> 64-bits
//

__inline LARGE_INTEGER
NTAPI
RtlEnlargedIntegerMultiply (
    LONG Multiplicand,
    LONG Multiplier
    )
{
    __asm {
        mov     eax, Multiplicand
        imul    Multiplier
    }
}

//
// Unsigned enlarged integer multiply - 32-bits * 32-bits -> 64-bits
//

__inline LARGE_INTEGER
NTAPI
RtlEnlargedUnsignedMultiply (
    ULONG Multiplicand,
    ULONG Multiplier
    )
{
    __asm {
        mov     eax, Multiplicand
        mul     Multiplier
    }
}

//
// Enlarged integer divide - 64-bits / 32-bits > 32-bits
//

__inline ULONG
NTAPI
RtlEnlargedUnsignedDivide (
    IN ULARGE_INTEGER Dividend,
    IN ULONG Divisor,
    IN PULONG Remainder
    )
{
    __asm {
        mov     eax, Dividend.LowPart
        mov     edx, Dividend.HighPart
        mov     ecx, Remainder
        div     Divisor             ; eax = eax:edx / divisor
        or      ecx, ecx            ; save remainer?
        jz      short done
        mov     [ecx], edx
done:
    }
}


//
// Large integer negation - -(64-bits)
//

__inline LARGE_INTEGER
NTAPI
RtlLargeIntegerNegate (
    LARGE_INTEGER Subtrahend
    )
{
    __asm {
        mov     eax, Subtrahend.LowPart
        mov     edx, Subtrahend.HighPart
        neg     edx                 ; (edx) = 2s comp of hi part
        neg     eax                 ; if ((eax) == 0) CF = 0
                                    ; else CF = 1
        sbb     edx,0               ; (edx) = (edx) - CF
    }
}

//
// Large integer subtract - 64-bits - 64-bits -> 64-bits.
//

__inline LARGE_INTEGER
NTAPI
RtlLargeIntegerSubtract (
    LARGE_INTEGER Minuend,
    LARGE_INTEGER Subtrahend
    )
{
    __asm {
        mov     eax, Minuend.LowPart
        mov     edx, Minuend.HighPart
        sub     eax, Subtrahend.LowPart
        sbb     edx, Subtrahend.HighPart
    }
}

#pragma warning(default:4035)
#endif


//
// Extended large integer magic divide - 64-bits / 32-bits -> 64-bits
//

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlExtendedMagicDivide (
    LARGE_INTEGER Dividend,
    LARGE_INTEGER MagicDivisor,
    CCHAR ShiftCount
    );

//
// Large Integer divide - 64-bits / 32-bits -> 64-bits
//

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlExtendedLargeIntegerDivide (
    LARGE_INTEGER Dividend,
    ULONG Divisor,
    PULONG Remainder
    );

//
// Extended integer multiply - 32-bits * 64-bits -> 64-bits
//

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlExtendedIntegerMultiply (
    LARGE_INTEGER Multiplicand,
    LONG Multiplier
    );

//
// Large integer and - 64-bite & 64-bits -> 64-bits.
//

#define RtlLargeIntegerAnd(Result, Source, Mask)   \
        {                                           \
            Result.HighPart = Source.HighPart & Mask.HighPart; \
            Result.LowPart = Source.LowPart & Mask.LowPart; \
        }

//
// Large integer conversion routines.
//

#if defined(MIDL_PASS) || defined(__cplusplus) || !defined(_M_IX86)

//
// Convert signed integer to large integer.
//

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlConvertLongToLargeInteger (
    LONG SignedInteger
    );

//
// Convert unsigned integer to large integer.
//

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlConvertUlongToLargeInteger (
    ULONG UnsignedInteger
    );


//
// Large integer shift routines.
//

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlLargeIntegerShiftLeft (
    LARGE_INTEGER LargeInteger,
    CCHAR ShiftCount
    );

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlLargeIntegerShiftRight (
    LARGE_INTEGER LargeInteger,
    CCHAR ShiftCount
    );

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlLargeIntegerArithmeticShift (
    LARGE_INTEGER LargeInteger,
    CCHAR ShiftCount
    );

#else

#pragma warning(disable:4035)               // re-enable below

//
// Convert signed integer to large integer.
//

__inline LARGE_INTEGER
NTAPI
RtlConvertLongToLargeInteger (
    LONG SignedInteger
    )
{
    __asm {
        mov     eax, SignedInteger
        cdq                 ; (edx:eax) = signed LargeInt
    }
}

//
// Convert unsigned integer to large integer.
//

__inline LARGE_INTEGER
NTAPI
RtlConvertUlongToLargeInteger (
    ULONG UnsignedInteger
    )
{
    __asm {
        sub     edx, edx    ; zero highpart
        mov     eax, UnsignedInteger
    }
}

//
// Large integer shift routines.
//

__inline LARGE_INTEGER
NTAPI
RtlLargeIntegerShiftLeft (
    LARGE_INTEGER LargeInteger,
    CCHAR ShiftCount
    )
{
    __asm    {
        mov     cl, ShiftCount
        and     cl, 0x3f                    ; mod 64

        cmp     cl, 32
        jc      short sl10

        mov     edx, LargeInteger.LowPart   ; ShiftCount >= 32
        xor     eax, eax                    ; lowpart is zero
        shl     edx, cl                     ; store highpart
        jmp     short done

sl10:
        mov     eax, LargeInteger.LowPart   ; ShiftCount < 32
        mov     edx, LargeInteger.HighPart
        shld    edx, eax, cl
        shl     eax, cl
done:
    }
}


__inline LARGE_INTEGER
NTAPI
RtlLargeIntegerShiftRight (
    LARGE_INTEGER LargeInteger,
    CCHAR ShiftCount
    )
{
    __asm    {
        mov     cl, ShiftCount
        and     cl, 0x3f               ; mod 64

        cmp     cl, 32
        jc      short sr10

        mov     eax, LargeInteger.HighPart  ; ShiftCount >= 32
        xor     edx, edx                    ; lowpart is zero
        shr     eax, cl                     ; store highpart
        jmp     short done

sr10:
        mov     eax, LargeInteger.LowPart   ; ShiftCount < 32
        mov     edx, LargeInteger.HighPart
        shrd    eax, edx, cl
        shr     edx, cl
done:
    }
}


__inline LARGE_INTEGER
NTAPI
RtlLargeIntegerArithmeticShift (
    LARGE_INTEGER LargeInteger,
    CCHAR ShiftCount
    )
{
    __asm {
        mov     cl, ShiftCount
        and     cl, 3fh                 ; mod 64

        cmp     cl, 32
        jc      short sar10

        mov     eax, LargeInteger.HighPart
        sar     eax, cl
        bt      eax, 31                     ; sign bit set?
        sbb     edx, edx                    ; duplicate sign bit into highpart
        jmp     short done
sar10:
        mov     eax, LargeInteger.LowPart   ; (eax) = LargeInteger.LowPart
        mov     edx, LargeInteger.HighPart  ; (edx) = LargeInteger.HighPart
        shrd    eax, edx, cl
        sar     edx, cl
done:
    }
}

#pragma warning(default:4035)

#endif

//
// Large integer comparison routines.
//
// BOOLEAN
// RtlLargeIntegerGreaterThan (
//     LARGE_INTEGER Operand1,
//     LARGE_INTEGER Operand2
//     );
//
// BOOLEAN
// RtlLargeIntegerGreaterThanOrEqualTo (
//     LARGE_INTEGER Operand1,
//     LARGE_INTEGER Operand2
//     );
//
// BOOLEAN
// RtlLargeIntegerEqualTo (
//     LARGE_INTEGER Operand1,
//     LARGE_INTEGER Operand2
//     );
//
// BOOLEAN
// RtlLargeIntegerNotEqualTo (
//     LARGE_INTEGER Operand1,
//     LARGE_INTEGER Operand2
//     );
//
// BOOLEAN
// RtlLargeIntegerLessThan (
//     LARGE_INTEGER Operand1,
//     LARGE_INTEGER Operand2
//     );
//
// BOOLEAN
// RtlLargeIntegerLessThanOrEqualTo (
//     LARGE_INTEGER Operand1,
//     LARGE_INTEGER Operand2
//     );
//
// BOOLEAN
// RtlLargeIntegerGreaterThanZero (
//     LARGE_INTEGER Operand
//     );
//
// BOOLEAN
// RtlLargeIntegerGreaterOrEqualToZero (
//     LARGE_INTEGER Operand
//     );
//
// BOOLEAN
// RtlLargeIntegerEqualToZero (
//     LARGE_INTEGER Operand
//     );
//
// BOOLEAN
// RtlLargeIntegerNotEqualToZero (
//     LARGE_INTEGER Operand
//     );
//
// BOOLEAN
// RtlLargeIntegerLessThanZero (
//     LARGE_INTEGER Operand
//     );
//
// BOOLEAN
// RtlLargeIntegerLessOrEqualToZero (
//     LARGE_INTEGER Operand
//     );
//

#define RtlLargeIntegerGreaterThan(X,Y) (                              \
    (((X).HighPart == (Y).HighPart) && ((X).LowPart > (Y).LowPart)) || \
    ((X).HighPart > (Y).HighPart)                                      \
)

#define RtlLargeIntegerGreaterThanOrEqualTo(X,Y) (                      \
    (((X).HighPart == (Y).HighPart) && ((X).LowPart >= (Y).LowPart)) || \
    ((X).HighPart > (Y).HighPart)                                       \
)

#define RtlLargeIntegerEqualTo(X,Y) (                              \
    !(((X).LowPart ^ (Y).LowPart) | ((X).HighPart ^ (Y).HighPart)) \
)

#define RtlLargeIntegerNotEqualTo(X,Y) (                          \
    (((X).LowPart ^ (Y).LowPart) | ((X).HighPart ^ (Y).HighPart)) \
)

#define RtlLargeIntegerLessThan(X,Y) (                                 \
    (((X).HighPart == (Y).HighPart) && ((X).LowPart < (Y).LowPart)) || \
    ((X).HighPart < (Y).HighPart)                                      \
)

#define RtlLargeIntegerLessThanOrEqualTo(X,Y) (                         \
    (((X).HighPart == (Y).HighPart) && ((X).LowPart <= (Y).LowPart)) || \
    ((X).HighPart < (Y).HighPart)                                       \
)

#define RtlLargeIntegerGreaterThanZero(X) (       \
    (((X).HighPart == 0) && ((X).LowPart > 0)) || \
    ((X).HighPart > 0 )                           \
)

#define RtlLargeIntegerGreaterOrEqualToZero(X) ( \
    (X).HighPart >= 0                            \
)

#define RtlLargeIntegerEqualToZero(X) ( \
    !((X).LowPart | (X).HighPart)       \
)

#define RtlLargeIntegerNotEqualToZero(X) ( \
    ((X).LowPart | (X).HighPart)           \
)

#define RtlLargeIntegerLessThanZero(X) ( \
    ((X).HighPart < 0)                   \
)

#define RtlLargeIntegerLessOrEqualToZero(X) (           \
    ((X).HighPart < 0) || !((X).LowPart | (X).HighPart) \
)


//
//  Time conversion routines
//

typedef struct _TIME_FIELDS {
    CSHORT Year;        // range [1601...]
    CSHORT Month;       // range [1..12]
    CSHORT Day;         // range [1..31]
    CSHORT Hour;        // range [0..23]
    CSHORT Minute;      // range [0..59]
    CSHORT Second;      // range [0..59]
    CSHORT Milliseconds;// range [0..999]
    CSHORT Weekday;     // range [0..6] == [Sunday..Saturday]
} TIME_FIELDS;
typedef TIME_FIELDS *PTIME_FIELDS;


NTSYSAPI
VOID
NTAPI
RtlTimeToTimeFields (
    PLARGE_INTEGER Time,
    PTIME_FIELDS TimeFields
    );

//
//  A time field record (Weekday ignored) -> 64 bit Time value
//

NTSYSAPI
BOOLEAN
NTAPI
RtlTimeFieldsToTime (
    PTIME_FIELDS TimeFields,
    PLARGE_INTEGER Time
    );

//
// The following macros store and retrieve USHORTS and ULONGS from potentially
// unaligned addresses, avoiding alignment faults.  they should probably be
// rewritten in assembler
//

#define SHORT_SIZE  (sizeof(USHORT))
#define SHORT_MASK  (SHORT_SIZE - 1)
#define LONG_SIZE       (sizeof(LONG))
#define LONG_MASK       (LONG_SIZE - 1)
#define LOWBYTE_MASK 0x00FF

#define FIRSTBYTE(VALUE)  (VALUE & LOWBYTE_MASK)
#define SECONDBYTE(VALUE) ((VALUE >> 8) & LOWBYTE_MASK)
#define THIRDBYTE(VALUE)  ((VALUE >> 16) & LOWBYTE_MASK)
#define FOURTHBYTE(VALUE) ((VALUE >> 24) & LOWBYTE_MASK)

//
// if MIPS Big Endian, order of bytes is reversed.
//

#define SHORT_LEAST_SIGNIFICANT_BIT  0
#define SHORT_MOST_SIGNIFICANT_BIT   1

#define LONG_LEAST_SIGNIFICANT_BIT       0
#define LONG_3RD_MOST_SIGNIFICANT_BIT    1
#define LONG_2ND_MOST_SIGNIFICANT_BIT    2
#define LONG_MOST_SIGNIFICANT_BIT        3

//++
//
// VOID
// RtlStoreUshort (
//     PUSHORT ADDRESS
//     USHORT VALUE
//     )
//
// Routine Description:
//
// This macro stores a USHORT value in at a particular address, avoiding
// alignment faults.
//
// Arguments:
//
//     ADDRESS - where to store USHORT value
//     VALUE - USHORT to store
//
// Return Value:
//
//     none.
//
//--

#define RtlStoreUshort(ADDRESS,VALUE)                     \
         if ((ULONG)ADDRESS & SHORT_MASK) {               \
             ((PUCHAR) ADDRESS)[SHORT_LEAST_SIGNIFICANT_BIT] = (UCHAR)(FIRSTBYTE(VALUE));    \
             ((PUCHAR) ADDRESS)[SHORT_MOST_SIGNIFICANT_BIT ] = (UCHAR)(SECONDBYTE(VALUE));   \
         }                                                \
         else {                                           \
             *((PUSHORT) ADDRESS) = (USHORT) VALUE;       \
         }


//++
//
// VOID
// RtlStoreUlong (
//     PULONG ADDRESS
//     ULONG VALUE
//     )
//
// Routine Description:
//
// This macro stores a ULONG value in at a particular address, avoiding
// alignment faults.
//
// Arguments:
//
//     ADDRESS - where to store ULONG value
//     VALUE - ULONG to store
//
// Return Value:
//
//     none.
//
// Note:
//     Depending on the machine, we might want to call storeushort in the
//     unaligned case.
//
//--

#define RtlStoreUlong(ADDRESS,VALUE)                      \
         if ((ULONG)ADDRESS & LONG_MASK) {                \
             ((PUCHAR) ADDRESS)[LONG_LEAST_SIGNIFICANT_BIT      ] = (UCHAR)(FIRSTBYTE(VALUE));    \
             ((PUCHAR) ADDRESS)[LONG_3RD_MOST_SIGNIFICANT_BIT   ] = (UCHAR)(SECONDBYTE(VALUE));   \
             ((PUCHAR) ADDRESS)[LONG_2ND_MOST_SIGNIFICANT_BIT   ] = (UCHAR)(THIRDBYTE(VALUE));    \
             ((PUCHAR) ADDRESS)[LONG_MOST_SIGNIFICANT_BIT       ] = (UCHAR)(FOURTHBYTE(VALUE));   \
         }                                                \
         else {                                           \
             *((PULONG) ADDRESS) = (ULONG) VALUE;         \
         }

//++
//
// VOID
// RtlRetrieveUshort (
//     PUSHORT DESTINATION_ADDRESS
//     PUSHORT SOURCE_ADDRESS
//     )
//
// Routine Description:
//
// This macro retrieves a USHORT value from the SOURCE address, avoiding
// alignment faults.  The DESTINATION address is assumed to be aligned.
//
// Arguments:
//
//     DESTINATION_ADDRESS - where to store USHORT value
//     SOURCE_ADDRESS - where to retrieve USHORT value from
//
// Return Value:
//
//     none.
//
//--

#define RtlRetrieveUshort(DEST_ADDRESS,SRC_ADDRESS)                   \
         if ((ULONG)SRC_ADDRESS & SHORT_MASK) {                       \
             ((PUCHAR) DEST_ADDRESS)[0] = ((PUCHAR) SRC_ADDRESS)[0];  \
             ((PUCHAR) DEST_ADDRESS)[1] = ((PUCHAR) SRC_ADDRESS)[1];  \
         }                                                            \
         else {                                                       \
             *((PUSHORT) DEST_ADDRESS) = *((PUSHORT) SRC_ADDRESS);    \
         }                                                            \

//++
//
// VOID
// RtlRetrieveUlong (
//     PULONG DESTINATION_ADDRESS
//     PULONG SOURCE_ADDRESS
//     )
//
// Routine Description:
//
// This macro retrieves a ULONG value from the SOURCE address, avoiding
// alignment faults.  The DESTINATION address is assumed to be aligned.
//
// Arguments:
//
//     DESTINATION_ADDRESS - where to store ULONG value
//     SOURCE_ADDRESS - where to retrieve ULONG value from
//
// Return Value:
//
//     none.
//
// Note:
//     Depending on the machine, we might want to call retrieveushort in the
//     unaligned case.
//
//--

#define RtlRetrieveUlong(DEST_ADDRESS,SRC_ADDRESS)                    \
         if ((ULONG)SRC_ADDRESS & LONG_MASK) {                        \
             ((PUCHAR) DEST_ADDRESS)[0] = ((PUCHAR) SRC_ADDRESS)[0];  \
             ((PUCHAR) DEST_ADDRESS)[1] = ((PUCHAR) SRC_ADDRESS)[1];  \
             ((PUCHAR) DEST_ADDRESS)[2] = ((PUCHAR) SRC_ADDRESS)[2];  \
             ((PUCHAR) DEST_ADDRESS)[3] = ((PUCHAR) SRC_ADDRESS)[3];  \
         }                                                            \
         else {                                                       \
             *((PULONG) DEST_ADDRESS) = *((PULONG) SRC_ADDRESS);      \
         }
//
// Define the various device type values.  Note that values used by Microsoft
// Corporation are in the range 0-32767, and 32768-65535 are reserved for use
// by customers.
//

#define DEVICE_TYPE ULONG

#define FILE_DEVICE_BEEP                0x00000001
#define FILE_DEVICE_CD_ROM              0x00000002
#define FILE_DEVICE_CD_ROM_FILE_SYSTEM  0x00000003
#define FILE_DEVICE_CONTROLLER          0x00000004
#define FILE_DEVICE_DATALINK            0x00000005
#define FILE_DEVICE_DFS                 0x00000006
#define FILE_DEVICE_DISK                0x00000007
#define FILE_DEVICE_DISK_FILE_SYSTEM    0x00000008
#define FILE_DEVICE_FILE_SYSTEM         0x00000009
#define FILE_DEVICE_INPORT_PORT         0x0000000a
#define FILE_DEVICE_KEYBOARD            0x0000000b
#define FILE_DEVICE_MAILSLOT            0x0000000c
#define FILE_DEVICE_MIDI_IN             0x0000000d
#define FILE_DEVICE_MIDI_OUT            0x0000000e
#define FILE_DEVICE_MOUSE               0x0000000f
#define FILE_DEVICE_MULTI_UNC_PROVIDER  0x00000010
#define FILE_DEVICE_NAMED_PIPE          0x00000011
#define FILE_DEVICE_NETWORK             0x00000012
#define FILE_DEVICE_NETWORK_BROWSER     0x00000013
#define FILE_DEVICE_NETWORK_FILE_SYSTEM 0x00000014
#define FILE_DEVICE_NULL                0x00000015
#define FILE_DEVICE_PARALLEL_PORT       0x00000016
#define FILE_DEVICE_PHYSICAL_NETCARD    0x00000017
#define FILE_DEVICE_PRINTER             0x00000018
#define FILE_DEVICE_SCANNER             0x00000019
#define FILE_DEVICE_SERIAL_MOUSE_PORT   0x0000001a
#define FILE_DEVICE_SERIAL_PORT         0x0000001b
#define FILE_DEVICE_SCREEN              0x0000001c
#define FILE_DEVICE_SOUND               0x0000001d
#define FILE_DEVICE_STREAMS             0x0000001e
#define FILE_DEVICE_TAPE                0x0000001f
#define FILE_DEVICE_TAPE_FILE_SYSTEM    0x00000020
#define FILE_DEVICE_TRANSPORT           0x00000021
#define FILE_DEVICE_UNKNOWN             0x00000022
#define FILE_DEVICE_VIDEO               0x00000023
#define FILE_DEVICE_VIRTUAL_DISK        0x00000024
#define FILE_DEVICE_WAVE_IN             0x00000025
#define FILE_DEVICE_WAVE_OUT            0x00000026
#define FILE_DEVICE_8042_PORT           0x00000027
#define FILE_DEVICE_NETWORK_REDIRECTOR  0x00000028
#define FILE_DEVICE_BATTERY             0x00000029
#define FILE_DEVICE_BUS_EXTENDER        0x0000002a
#define FILE_DEVICE_MODEM               0x0000002b
#define FILE_DEVICE_VDM                 0x0000002c
#define FILE_DEVICE_MASS_STORAGE        0x0000002d
#define FILE_DEVICE_SMB                 0x0000002e
#define FILE_DEVICE_KS                  0x0000002f
#define FILE_DEVICE_CHANGER             0x00000030
#define FILE_DEVICE_SMARTCARD           0x00000031
#define FILE_DEVICE_ACPI                0x00000032
#define FILE_DEVICE_DVD                 0x00000033
#define FILE_DEVICE_FULLSCREEN_VIDEO    0x00000034
#define FILE_DEVICE_DFS_FILE_SYSTEM     0x00000035
#define FILE_DEVICE_DFS_VOLUME          0x00000036
#define FILE_DEVICE_SERENUM             0x00000037

//
// Macro definition for defining IOCTL and FSCTL function control codes.  Note
// that function codes 0-2047 are reserved for Microsoft Corporation, and
// 2048-4095 are reserved for customers.
//

#define CTL_CODE( DeviceType, Function, Method, Access ) (                 \
    ((DeviceType) << 16) | ((Access) << 14) | ((Function) << 2) | (Method) \
)

//
// Define the method codes for how buffers are passed for I/O and FS controls
//

#define METHOD_BUFFERED                 0
#define METHOD_IN_DIRECT                1
#define METHOD_OUT_DIRECT               2
#define METHOD_NEITHER                  3

//
// Define the access check value for any access
//
//
// The FILE_READ_ACCESS and FILE_WRITE_ACCESS constants are also defined in
// ntioapi.h as FILE_READ_DATA and FILE_WRITE_DATA. The values for these
// constants *MUST* always be in sync.
//


#define FILE_ANY_ACCESS                 0
#define FILE_READ_ACCESS          ( 0x0001 )    // file & pipe
#define FILE_WRITE_ACCESS         ( 0x0002 )    // file & pipe



//
// Define access rights to files and directories
//

//
// The FILE_READ_DATA and FILE_WRITE_DATA constants are also defined in
// devioctl.h as FILE_READ_ACCESS and FILE_WRITE_ACCESS. The values for these
// constants *MUST* always be in sync.
// The values are redefined in devioctl.h because they must be available to
// both DOS and NT.
//

#define FILE_READ_DATA            ( 0x0001 )    // file & pipe
#define FILE_LIST_DIRECTORY       ( 0x0001 )    // directory

#define FILE_WRITE_DATA           ( 0x0002 )    // file & pipe
#define FILE_ADD_FILE             ( 0x0002 )    // directory

#define FILE_APPEND_DATA          ( 0x0004 )    // file
#define FILE_ADD_SUBDIRECTORY     ( 0x0004 )    // directory

#define FILE_READ_EA              ( 0x0008 )    // file & directory

#define FILE_WRITE_EA             ( 0x0010 )    // file & directory

#define FILE_EXECUTE              ( 0x0020 )    // file
#define FILE_TRAVERSE             ( 0x0020 )    // directory

#define FILE_DELETE_CHILD         ( 0x0040 )    // directory

#define FILE_READ_ATTRIBUTES      ( 0x0080 )    // all

#define FILE_WRITE_ATTRIBUTES     ( 0x0100 )    // all

#define FILE_CREATE_PIPE_INSTANCE ( 0x0200 )    // named pipe

#define FILE_ALL_ACCESS (STANDARD_RIGHTS_REQUIRED | SYNCHRONIZE | 0x3FF)

#define FILE_GENERIC_READ         (STANDARD_RIGHTS_READ     |\
                                   FILE_READ_DATA           |\
                                   FILE_READ_ATTRIBUTES     |\
                                   FILE_READ_EA             |\
                                   SYNCHRONIZE)


#define FILE_GENERIC_WRITE        (STANDARD_RIGHTS_WRITE    |\
                                   FILE_WRITE_DATA          |\
                                   FILE_WRITE_ATTRIBUTES    |\
                                   FILE_WRITE_EA            |\
                                   FILE_APPEND_DATA         |\
                                   SYNCHRONIZE)


#define FILE_GENERIC_EXECUTE      (STANDARD_RIGHTS_EXECUTE  |\
                                   FILE_READ_ATTRIBUTES     |\
                                   FILE_EXECUTE             |\
                                   SYNCHRONIZE)




//
// Define share access rights to files and directories
//

#define FILE_SHARE_READ                 0x00000001  
#define FILE_SHARE_WRITE                0x00000002  
#define FILE_SHARE_DELETE               0x00000004  
#define FILE_SHARE_VALID_FLAGS          0x00000007

//
// Define the file attributes values
//
// Note:  0x00000008 is reserved for use for the old DOS VOLID (volume ID)
//        and is therefore not considered valid in NT.
//
// Note:  0x00000010 is reserved for use for the old DOS SUBDIRECTORY flag
//        and is therefore not considered valid in NT.  This flag has
//        been disassociated with file attributes since the other flags are
//        protected with READ_ and WRITE_ATTRIBUTES access to the file.
//
// Note:  Note also that the order of these flags is set to allow both the
//        FAT and the Pinball File Systems to directly set the attributes
//        flags in attributes words without having to pick each flag out
//        individually.  The order of these flags should not be changed!
//

#define FILE_ATTRIBUTE_READONLY         0x00000001  
#define FILE_ATTRIBUTE_HIDDEN           0x00000002  
#define FILE_ATTRIBUTE_SYSTEM           0x00000004  
//OLD DOS VOLID                         0x00000008

#define FILE_ATTRIBUTE_DIRECTORY        0x00000010  
#define FILE_ATTRIBUTE_ARCHIVE          0x00000020  
#define FILE_ATTRIBUTE_ENCRYPTED        0x00000040  
#define FILE_ATTRIBUTE_NORMAL           0x00000080  

#define FILE_ATTRIBUTE_TEMPORARY        0x00000100  
#define FILE_ATTRIBUTE_SPARSE_FILE      0x00000200  
#define FILE_ATTRIBUTE_REPARSE_POINT    0x00000400  
#define FILE_ATTRIBUTE_COMPRESSED       0x00000800  

#define FILE_ATTRIBUTE_OFFLINE          0x00001000  
#define FILE_ATTRIBUTE_CONTENT_INDEXED  0x00002000

#define FILE_ATTRIBUTE_VALID_FLAGS      0x00003ff7
#define FILE_ATTRIBUTE_VALID_SET_FLAGS  0x000031a7

//
// Define the create disposition values
//

#define FILE_SUPERSEDE                  0x00000000
#define FILE_OPEN                       0x00000001
#define FILE_CREATE                     0x00000002
#define FILE_OPEN_IF                    0x00000003
#define FILE_OVERWRITE                  0x00000004
#define FILE_OVERWRITE_IF               0x00000005
#define FILE_MAXIMUM_DISPOSITION        0x00000005

//
// Define the create/open option flags
//

#define FILE_DIRECTORY_FILE                     0x00000001
#define FILE_WRITE_THROUGH                      0x00000002
#define FILE_SEQUENTIAL_ONLY                    0x00000004
#define FILE_NO_INTERMEDIATE_BUFFERING          0x00000008

#define FILE_SYNCHRONOUS_IO_ALERT               0x00000010
#define FILE_SYNCHRONOUS_IO_NONALERT            0x00000020
#define FILE_NON_DIRECTORY_FILE                 0x00000040
#define FILE_CREATE_TREE_CONNECTION             0x00000080

#define FILE_COMPLETE_IF_OPLOCKED               0x00000100
#define FILE_NO_EA_KNOWLEDGE                    0x00000200
#define FILE_OPEN_FOR_RECOVERY                  0x00000400
#define FILE_RANDOM_ACCESS                      0x00000800

#define FILE_DELETE_ON_CLOSE                    0x00001000
#define FILE_OPEN_BY_FILE_ID                    0x00002000
#define FILE_OPEN_FOR_BACKUP_INTENT             0x00004000
#define FILE_NO_COMPRESSION                     0x00008000

#define FILE_RESERVE_OPFILTER                   0x00100000
#define FILE_OPEN_REPARSE_POINT                 0x00200000
#define FILE_OPEN_NO_RECALL                     0x00400000
#define FILE_OPEN_FOR_FREE_SPACE_QUERY          0x00800000

#define FILE_COPY_STRUCTURED_STORAGE            0x00000041
#define FILE_STRUCTURED_STORAGE                 0x00000441

#define FILE_VALID_OPTION_FLAGS                 0x00ffffff
#define FILE_VALID_PIPE_OPTION_FLAGS            0x00000032
#define FILE_VALID_MAILSLOT_OPTION_FLAGS        0x00000032
#define FILE_VALID_SET_FLAGS                    0x00000036

//
// Define the I/O status information return values for NtCreateFile/NtOpenFile
//

#define FILE_SUPERSEDED                 0x00000000
#define FILE_OPENED                     0x00000001
#define FILE_CREATED                    0x00000002
#define FILE_OVERWRITTEN                0x00000003
#define FILE_EXISTS                     0x00000004
#define FILE_DOES_NOT_EXIST             0x00000005

//
// Define special ByteOffset parameters for read and write operations
//

#define FILE_WRITE_TO_END_OF_FILE       0xffffffff
#define FILE_USE_FILE_POINTER_POSITION  0xfffffffe

//
// Define alignment requirement values
//

#define FILE_BYTE_ALIGNMENT             0x00000000
#define FILE_WORD_ALIGNMENT             0x00000001
#define FILE_LONG_ALIGNMENT             0x00000003
#define FILE_QUAD_ALIGNMENT             0x00000007
#define FILE_OCTA_ALIGNMENT             0x0000000f
#define FILE_32_BYTE_ALIGNMENT          0x0000001f
#define FILE_64_BYTE_ALIGNMENT          0x0000003f
#define FILE_128_BYTE_ALIGNMENT         0x0000007f
#define FILE_256_BYTE_ALIGNMENT         0x000000ff
#define FILE_512_BYTE_ALIGNMENT         0x000001ff

//
// Define the maximum length of a filename string
//

#define MAXIMUM_FILENAME_LENGTH         256

//
// Define the various device characteristics flags
//

#define FILE_REMOVABLE_MEDIA            0x00000001
#define FILE_READ_ONLY_DEVICE           0x00000002
#define FILE_FLOPPY_DISKETTE            0x00000004
#define FILE_WRITE_ONCE_MEDIA           0x00000008
#define FILE_REMOTE_DEVICE              0x00000010
#define FILE_DEVICE_IS_MOUNTED          0x00000020
#define FILE_VIRTUAL_VOLUME             0x00000040
#define FILE_AUTOGENERATED_DEVICE_NAME  0x00000080

//
// Define the base asynchronous I/O argument types
//

typedef struct _IO_STATUS_BLOCK {
    NTSTATUS Status;
    ULONG Information;
} IO_STATUS_BLOCK, *PIO_STATUS_BLOCK;

//
// Define an Asynchronous Procedure Call from I/O viewpoint
//

typedef
VOID
(NTAPI *PIO_APC_ROUTINE) (
    IN PVOID ApcContext,
    IN PIO_STATUS_BLOCK IoStatusBlock,
    IN ULONG Reserved
    );
#define PIO_APC_ROUTINE_DEFINED

//
// Define the file information class values
//
// WARNING:  The order of the following values are assumed by the I/O system.
//           Any changes made here should be reflected there as well.
//

typedef enum _FILE_INFORMATION_CLASS {
    FileBasicInformation = 4,         
    FileStandardInformation = 5,      
    FilePositionInformation = 14,      
    FileEndOfFileInformation = 20,     
} FILE_INFORMATION_CLASS, *PFILE_INFORMATION_CLASS;

//
// Define the various structures which are returned on query operations
//

typedef struct _FILE_BASIC_INFORMATION {                    
    LARGE_INTEGER CreationTime;                             
    LARGE_INTEGER LastAccessTime;                           
    LARGE_INTEGER LastWriteTime;                            
    LARGE_INTEGER ChangeTime;                               
    ULONG FileAttributes;                                   
} FILE_BASIC_INFORMATION, *PFILE_BASIC_INFORMATION;         
                                                            
typedef struct _FILE_STANDARD_INFORMATION {                 
    LARGE_INTEGER AllocationSize;                           
    LARGE_INTEGER EndOfFile;                                
    ULONG NumberOfLinks;                                    
    BOOLEAN DeletePending;                                  
    BOOLEAN Directory;                                      
} FILE_STANDARD_INFORMATION, *PFILE_STANDARD_INFORMATION;   
                                                            
typedef struct _FILE_POSITION_INFORMATION {                 
    LARGE_INTEGER CurrentByteOffset;                        
} FILE_POSITION_INFORMATION, *PFILE_POSITION_INFORMATION;   
                                                            
typedef struct _FILE_NETWORK_OPEN_INFORMATION {                 
    LARGE_INTEGER CreationTime;                                 
    LARGE_INTEGER LastAccessTime;                               
    LARGE_INTEGER LastWriteTime;                                
    LARGE_INTEGER ChangeTime;                                   
    LARGE_INTEGER AllocationSize;                               
    LARGE_INTEGER EndOfFile;                                    
    ULONG FileAttributes;                                       
} FILE_NETWORK_OPEN_INFORMATION, *PFILE_NETWORK_OPEN_INFORMATION;   
                                                                

typedef struct _FILE_FULL_EA_INFORMATION {
    ULONG NextEntryOffset;
    UCHAR Flags;
    UCHAR EaNameLength;
    USHORT EaValueLength;
    CHAR EaName[1];
} FILE_FULL_EA_INFORMATION, *PFILE_FULL_EA_INFORMATION;

//
// Define the file system information class values
//
// WARNING:  The order of the following values are assumed by the I/O system.
//           Any changes made here should be reflected there as well.

typedef enum _FSINFOCLASS {
    FileFsVolumeInformation       = 1,
    FileFsLabelInformation,      // 2
    FileFsSizeInformation,       // 3
    FileFsDeviceInformation,     // 4
    FileFsAttributeInformation,  // 5
    FileFsControlInformation,    // 6
    FileFsFullSizeInformation,   // 7
    FileFsObjectIdInformation,   // 8
    FileFsMaximumInformation
} FS_INFORMATION_CLASS, *PFS_INFORMATION_CLASS;

typedef struct _FILE_FS_DEVICE_INFORMATION {                    
    DEVICE_TYPE DeviceType;                                     
    ULONG Characteristics;                                      
} FILE_FS_DEVICE_INFORMATION, *PFILE_FS_DEVICE_INFORMATION;     
                                                                
//
// Define the I/O bus interface types.
//

typedef enum _INTERFACE_TYPE {
    InterfaceTypeUndefined = -1,
    Internal,
    Isa,
    Eisa,
    MicroChannel,
    TurboChannel,
    PCIBus,
    VMEBus,
    NuBus,
    PCMCIABus,
    CBus,
    MPIBus,
    MPSABus,
    ProcessorInternal,
    InternalPowerBus,
    PNPISABus,
    PNPBus,
    MaximumInterfaceType
}INTERFACE_TYPE, *PINTERFACE_TYPE;

//
// Define the DMA transfer widths.
//

typedef enum _DMA_WIDTH {
    Width8Bits,
    Width16Bits,
    Width32Bits,
    MaximumDmaWidth
}DMA_WIDTH, *PDMA_WIDTH;

//
// Define DMA transfer speeds.
//

typedef enum _DMA_SPEED {
    Compatible,
    TypeA,
    TypeB,
    TypeC,
    MaximumDmaSpeed
}DMA_SPEED, *PDMA_SPEED;

//
// Define I/O Driver error log packet structure.  This structure is filled in
// by the driver.
//

typedef struct _IO_ERROR_LOG_PACKET {
    UCHAR MajorFunctionCode;
    UCHAR RetryCount;
    USHORT DumpDataSize;
    USHORT NumberOfStrings;
    USHORT StringOffset;
    USHORT EventCategory;
    NTSTATUS ErrorCode;
    ULONG UniqueErrorValue;
    NTSTATUS FinalStatus;
    ULONG SequenceNumber;
    ULONG IoControlCode;
    LARGE_INTEGER DeviceOffset;
    ULONG DumpData[1];
}IO_ERROR_LOG_PACKET, *PIO_ERROR_LOG_PACKET;

//
// Define the I/O error log message.  This message is sent by the error log
// thread over the lpc port.
//

typedef struct _IO_ERROR_LOG_MESSAGE {
    USHORT Type;
    USHORT Size;
    USHORT DriverNameLength;
    LARGE_INTEGER TimeStamp;
    ULONG DriverNameOffset;
    IO_ERROR_LOG_PACKET EntryData;
}IO_ERROR_LOG_MESSAGE, *PIO_ERROR_LOG_MESSAGE;

//
// Define the maximum message size that will be sent over the LPC to the
// application reading the error log entries.
//

#define IO_ERROR_LOG_MESSAGE_LENGTH  PORT_MAXIMUM_MESSAGE_LENGTH

//
// Define the maximum packet size a driver can allocate.
//

#define ERROR_LOG_MAXIMUM_SIZE (IO_ERROR_LOG_MESSAGE_LENGTH + sizeof(IO_ERROR_LOG_PACKET) -    \
                        sizeof(IO_ERROR_LOG_MESSAGE) - (sizeof(WCHAR) * 40))

#define PORT_MAXIMUM_MESSAGE_LENGTH 256
//
// Registry Specific Access Rights.
//

#define KEY_QUERY_VALUE         (0x0001)
#define KEY_SET_VALUE           (0x0002)
#define KEY_CREATE_SUB_KEY      (0x0004)
#define KEY_ENUMERATE_SUB_KEYS  (0x0008)
#define KEY_NOTIFY              (0x0010)
#define KEY_CREATE_LINK         (0x0020)

#define KEY_READ                ((STANDARD_RIGHTS_READ       |\
                                  KEY_QUERY_VALUE            |\
                                  KEY_ENUMERATE_SUB_KEYS     |\
                                  KEY_NOTIFY)                 \
                                  &                           \
                                 (~SYNCHRONIZE))


#define KEY_WRITE               ((STANDARD_RIGHTS_WRITE      |\
                                  KEY_SET_VALUE              |\
                                  KEY_CREATE_SUB_KEY)         \
                                  &                           \
                                 (~SYNCHRONIZE))

#define KEY_EXECUTE             ((KEY_READ)                   \
                                  &                           \
                                 (~SYNCHRONIZE))

#define KEY_ALL_ACCESS          ((STANDARD_RIGHTS_ALL        |\
                                  KEY_QUERY_VALUE            |\
                                  KEY_SET_VALUE              |\
                                  KEY_CREATE_SUB_KEY         |\
                                  KEY_ENUMERATE_SUB_KEYS     |\
                                  KEY_NOTIFY                 |\
                                  KEY_CREATE_LINK)            \
                                  &                           \
                                 (~SYNCHRONIZE))

//
// Open/Create Options
//

#define REG_OPTION_RESERVED         (0x00000000L)   // Parameter is reserved

#define REG_OPTION_NON_VOLATILE     (0x00000000L)   // Key is preserved
                                                    // when system is rebooted

#define REG_OPTION_VOLATILE         (0x00000001L)   // Key is not preserved
                                                    // when system is rebooted

#define REG_OPTION_CREATE_LINK      (0x00000002L)   // Created key is a
                                                    // symbolic link

#define REG_OPTION_BACKUP_RESTORE   (0x00000004L)   // open for backup or restore
                                                    // special access rules
                                                    // privilege required

#define REG_OPTION_OPEN_LINK        (0x00000008L)   // Open symbolic link

#define REG_LEGAL_OPTION            \
                (REG_OPTION_RESERVED            |\
                 REG_OPTION_NON_VOLATILE        |\
                 REG_OPTION_VOLATILE            |\
                 REG_OPTION_CREATE_LINK         |\
                 REG_OPTION_BACKUP_RESTORE      |\
                 REG_OPTION_OPEN_LINK)

//
// Key creation/open disposition
//

#define REG_CREATED_NEW_KEY         (0x00000001L)   // New Registry Key created
#define REG_OPENED_EXISTING_KEY     (0x00000002L)   // Existing Key opened

//
// Key restore flags
//

#define REG_WHOLE_HIVE_VOLATILE     (0x00000001L)   // Restore whole hive volatile
#define REG_REFRESH_HIVE            (0x00000002L)   // Unwind changes to last flush
#define REG_NO_LAZY_FLUSH           (0x00000004L)   // Never lazy flush this hive

//
// Key query structures
//

typedef struct _KEY_BASIC_INFORMATION {
    LARGE_INTEGER LastWriteTime;
    ULONG   TitleIndex;
    ULONG   NameLength;
    WCHAR   Name[1];            // Variable length string
} KEY_BASIC_INFORMATION, *PKEY_BASIC_INFORMATION;

typedef struct _KEY_NODE_INFORMATION {
    LARGE_INTEGER LastWriteTime;
    ULONG   TitleIndex;
    ULONG   ClassOffset;
    ULONG   ClassLength;
    ULONG   NameLength;
    WCHAR   Name[1];            // Variable length string
//          Class[1];           // Variable length string not declared
} KEY_NODE_INFORMATION, *PKEY_NODE_INFORMATION;

typedef struct _KEY_FULL_INFORMATION {
    LARGE_INTEGER LastWriteTime;
    ULONG   TitleIndex;
    ULONG   ClassOffset;
    ULONG   ClassLength;
    ULONG   SubKeys;
    ULONG   MaxNameLen;
    ULONG   MaxClassLen;
    ULONG   Values;
    ULONG   MaxValueNameLen;
    ULONG   MaxValueDataLen;
    WCHAR   Class[1];           // Variable length
} KEY_FULL_INFORMATION, *PKEY_FULL_INFORMATION;

typedef enum _KEY_INFORMATION_CLASS {
    KeyBasicInformation,
    KeyNodeInformation,
    KeyFullInformation
} KEY_INFORMATION_CLASS;

typedef struct _KEY_WRITE_TIME_INFORMATION {
    LARGE_INTEGER LastWriteTime;
} KEY_WRITE_TIME_INFORMATION, *PKEY_WRITE_TIME_INFORMATION;

typedef enum _KEY_SET_INFORMATION_CLASS {
    KeyWriteTimeInformation
} KEY_SET_INFORMATION_CLASS;

//
// Value entry query structures
//

typedef struct _KEY_VALUE_BASIC_INFORMATION {
    ULONG   TitleIndex;
    ULONG   Type;
    ULONG   NameLength;
    WCHAR   Name[1];            // Variable size
} KEY_VALUE_BASIC_INFORMATION, *PKEY_VALUE_BASIC_INFORMATION;

typedef struct _KEY_VALUE_FULL_INFORMATION {
    ULONG   TitleIndex;
    ULONG   Type;
    ULONG   DataOffset;
    ULONG   DataLength;
    ULONG   NameLength;
    WCHAR   Name[1];            // Variable size
//          Data[1];            // Variable size data not declared
} KEY_VALUE_FULL_INFORMATION, *PKEY_VALUE_FULL_INFORMATION;

typedef struct _KEY_VALUE_PARTIAL_INFORMATION {
    ULONG   TitleIndex;
    ULONG   Type;
    ULONG   DataLength;
    UCHAR   Data[1];            // Variable size
} KEY_VALUE_PARTIAL_INFORMATION, *PKEY_VALUE_PARTIAL_INFORMATION;

typedef struct _KEY_VALUE_ENTRY {
    PUNICODE_STRING ValueName;
    ULONG           DataLength;
    ULONG           DataOffset;
    ULONG           Type;
} KEY_VALUE_ENTRY, *PKEY_VALUE_ENTRY;

typedef enum _KEY_VALUE_INFORMATION_CLASS {
    KeyValueBasicInformation,
    KeyValueFullInformation,
    KeyValuePartialInformation
} KEY_VALUE_INFORMATION_CLASS;



#define OBJ_NAME_PATH_SEPARATOR ((WCHAR)L'\\')

//
// Object Manager Object Type Specific Access Rights.
//

#define OBJECT_TYPE_CREATE (0x0001)

#define OBJECT_TYPE_ALL_ACCESS (STANDARD_RIGHTS_REQUIRED | 0x1)

//
// Object Manager Directory Specific Access Rights.
//

#define DIRECTORY_QUERY                 (0x0001)
#define DIRECTORY_TRAVERSE              (0x0002)
#define DIRECTORY_CREATE_OBJECT         (0x0004)
#define DIRECTORY_CREATE_SUBDIRECTORY   (0x0008)

#define DIRECTORY_ALL_ACCESS (STANDARD_RIGHTS_REQUIRED | 0xF)

//
// Object Manager Symbolic Link Specific Access Rights.
//

#define SYMBOLIC_LINK_QUERY (0x0001)

#define SYMBOLIC_LINK_ALL_ACCESS (STANDARD_RIGHTS_REQUIRED | 0x1)

typedef struct _OBJECT_NAME_INFORMATION {               
    UNICODE_STRING Name;                                
} OBJECT_NAME_INFORMATION, *POBJECT_NAME_INFORMATION;   
#define DUPLICATE_CLOSE_SOURCE      0x00000001  
#define DUPLICATE_SAME_ACCESS       0x00000002  
#define DUPLICATE_SAME_ATTRIBUTES   0x00000004

//
// Section Information Structures.
//

typedef enum _SECTION_INHERIT {
    ViewShare = 1,
    ViewUnmap = 2
} SECTION_INHERIT;

//
// Section Access Rights.
//


#define SECTION_QUERY       0x0001
#define SECTION_MAP_WRITE   0x0002
#define SECTION_MAP_READ    0x0004
#define SECTION_MAP_EXECUTE 0x0008
#define SECTION_EXTEND_SIZE 0x0010

#define SECTION_ALL_ACCESS (STANDARD_RIGHTS_REQUIRED|SECTION_QUERY|\
                            SECTION_MAP_WRITE |      \
                            SECTION_MAP_READ |       \
                            SECTION_MAP_EXECUTE |    \
                            SECTION_EXTEND_SIZE)


#define SEGMENT_ALL_ACCESS SECTION_ALL_ACCESS

#define PAGE_NOACCESS          0x01     
#define PAGE_READONLY          0x02     
#define PAGE_READWRITE         0x04     
#define PAGE_WRITECOPY         0x08     
#define PAGE_EXECUTE           0x10     
#define PAGE_EXECUTE_READ      0x20     
#define PAGE_EXECUTE_READWRITE 0x40     
#define PAGE_EXECUTE_WRITECOPY 0x80     
#define PAGE_GUARD            0x100     
#define PAGE_NOCACHE          0x200     
#define PAGE_WRITECOMBINE     0x400     

#define MEM_COMMIT           0x1000     
#define MEM_RESERVE          0x2000     
#define MEM_DECOMMIT         0x4000     
#define MEM_RELEASE          0x8000     
#define MEM_FREE            0x10000     
#define MEM_PRIVATE         0x20000     
#define MEM_MAPPED          0x40000     
#define MEM_RESET           0x80000     
#define MEM_TOP_DOWN       0x100000     
#define MEM_LARGE_PAGES  0x20000000     
#define MEM_4MB_PAGES    0x80000000     
#define SEC_RESERVE       0x4000000     
#define PROCESS_DUP_HANDLE        (0x0040)  
#define PROCESS_ALL_ACCESS        (STANDARD_RIGHTS_REQUIRED | SYNCHRONIZE | \
                                   0xFFF)



#define MAXIMUM_PROCESSORS 32



//
// Thread Specific Access Rights
//

#define THREAD_TERMINATE               (0x0001)  
#define THREAD_SET_INFORMATION         (0x0020)  

#define THREAD_ALL_ACCESS         (STANDARD_RIGHTS_REQUIRED | SYNCHRONIZE | \
                                   0x3FF)

//
// ClientId
//

typedef struct _CLIENT_ID {
    HANDLE UniqueProcess;
    HANDLE UniqueThread;
} CLIENT_ID;
typedef CLIENT_ID *PCLIENT_ID;

#define NtCurrentProcess() ( (HANDLE) -1 )  
#define NtCurrentThread() ( (HANDLE) -2 )   

#ifndef _PO_DDK_
#define _PO_DDK_

typedef enum _SYSTEM_POWER_STATE {
    PowerSystemUnspecified = 0,
    PowerSystemWorking,
    PowerSystemSleeping1,
    PowerSystemSleeping2,
    PowerSystemSleeping3,
    PowerSystemHibernate,
    PowerSystemShutdown,
    PowerSystemMaximum
} SYSTEM_POWER_STATE, *PSYSTEM_POWER_STATE;

typedef enum {
    PowerActionNone,
    PowerActionReserved,
    PowerActionSleep,
    PowerActionHibernate,
    PowerActionShutdown,
    PowerActionShutdownReset,
    PowerActionShutdownOff
} POWER_ACTION, *PPOWER_ACTION;

typedef enum _DEVICE_POWER_STATE {
    PowerDeviceUnspecified = 0,
    PowerDeviceD0,
    PowerDeviceD1,
    PowerDeviceD2,
    PowerDeviceD3,
    PowerDeviceMaximum
} DEVICE_POWER_STATE, *PDEVICE_POWER_STATE;

typedef union _POWER_STATE {
    SYSTEM_POWER_STATE SystemState;
    DEVICE_POWER_STATE DeviceState;
} POWER_STATE, *PPOWER_STATE;

typedef enum _POWER_STATE_TYPE {
    SystemPowerState,
    DevicePowerState
} POWER_STATE_TYPE, *PPOWER_STATE_TYPE;


//
// Generic power related IOCTLs
//

#define IOCTL_QUERY_DEVICE_POWER_STATE  \
        CTL_CODE(FILE_DEVICE_BATTERY, 0x0, METHOD_BUFFERED, FILE_READ_ACCESS)

#define IOCTL_SET_DEVICE_WAKE           \
        CTL_CODE(FILE_DEVICE_BATTERY, 0x1, METHOD_BUFFERED, FILE_WRITE_ACCESS)

#define IOCTL_CANCEL_DEVICE_WAKE        \
        CTL_CODE(FILE_DEVICE_BATTERY, 0x2, METHOD_BUFFERED, FILE_WRITE_ACCESS)


//
// Defines for W32 interfaces
//



#ifdef ES_SYSTEM_REQUIRED
#undef ES_SYSTEM_REQUIRED
#define ES_SYSTEM_REQUIRED  ((ULONG)0x00000001)
#endif
#ifdef ES_DISPLAY_REQUIRED
#undef ES_DISPLAY_REQUIRED
#define ES_DISPLAY_REQUIRED ((ULONG)0x00000002)
#endif

#ifdef ES_USER_PRESENT
#undef ES_USER_PRESENT
#define ES_USER_PRESENT     ((ULONG)0x00000004)
#endif

#ifdef ES_CONTINUOUS
#undef ES_CONTINUOUS
#define ES_CONTINUOUS       ((ULONG)0x80000000)
#endif

typedef ULONG EXECUTION_STATE;

typedef enum {
    LT_DONT_CARE,
    LT_LOWEST_LATENCY
} LATENCY_TIME;

// wmi
typedef struct _POWER_DEVICE_TIMEOUTS {
    ULONG   ConservationIdleTime;
    ULONG   PerformanceIdleTime;
} POWER_DEVICE_TIMEOUTS, *PPOWER_DEVICE_TIMEOUTS;



#endif // !_PO_DDK_


typedef struct {
    ULONG       Granularity;
    ULONG       Capacity;
} BATTERY_REPORTING_SCALE, *PBATTERY_REPORTING_SCALE;


#if defined(_X86_)

//
// Define maximum size of flush multiple TB request.
//

#define FLUSH_MULTIPLE_MAXIMUM 16

//
// Indicate that the i386 compiler supports the pragma textout construct.
//

#define ALLOC_PRAGMA 1
//
// Indicate that the i386 compiler supports the DATA_SEG("INIT") and
// DATA_SEG("PAGE") pragmas
//

#define ALLOC_DATA_PRAGMA 1

//
// Define function decoration depending on whether a driver, a file system,
// or a kernel component is being built.
//
#define NTKERNELAPI DECLSPEC_IMPORT         
#define NTHALAPI DECLSPEC_IMPORT         
#define NORMAL_DISPATCH_LENGTH 106                  
#define DISPATCH_LENGTH NORMAL_DISPATCH_LENGTH      
//
// STATUS register for each MCA bank.
//

typedef union _MCI_STATS {
    struct {
        USHORT  McaCod;
        USHORT  MsCod;
        ULONG   OtherInfo : 25;
        ULONG   Damage : 1;
        ULONG   AddressValid : 1;
        ULONG   MiscValid : 1;
        ULONG   Enabled : 1;
        ULONG   UnCorrected : 1;
        ULONG   OverFlow : 1;
        ULONG   Valid : 1;
    } MciStats;

    ULONGLONG QuadPart;

} MCI_STATS, *PMCI_STATS;

//
// Interrupt Request Level definitions
//

#define PASSIVE_LEVEL 0             // Passive release level
#define LOW_LEVEL 0                 // Lowest interrupt level
#define APC_LEVEL 1                 // APC interrupt level
#define DISPATCH_LEVEL 2            // Dispatcher level

#define PROFILE_LEVEL 27            // timer used for profiling.
#define CLOCK1_LEVEL 28             // Interval clock 1 level - Not used on x86
#define CLOCK2_LEVEL 28             // Interval clock 2 level
#define IPI_LEVEL 29                // Interprocessor interrupt level
#define POWER_LEVEL 30              // Power failure level
#define HIGH_LEVEL 31               // Highest interrupt level
#define SYNCH_LEVEL (IPI_LEVEL-1)   // synchronization level

//
// I/O space read and write macros.
//
//  These have to be actual functions on the 386, because we need
//  to use assembler, but cannot return a value if we inline it.
//
//  The READ/WRITE_REGISTER_* calls manipulate I/O registers in MEMORY space.
//  (Use x86 move instructions, with LOCK prefix to force correct behavior
//   w.r.t. caches and write buffers.)
//
//  The READ/WRITE_PORT_* calls manipulate I/O registers in PORT space.
//  (Use x86 in/out instructions.)
//

NTKERNELAPI
UCHAR
READ_REGISTER_UCHAR(
    PUCHAR  Register
    );

NTKERNELAPI
USHORT
READ_REGISTER_USHORT(
    PUSHORT Register
    );

NTKERNELAPI
ULONG
READ_REGISTER_ULONG(
    PULONG  Register
    );

NTKERNELAPI
VOID
READ_REGISTER_BUFFER_UCHAR(
    PUCHAR  Register,
    PUCHAR  Buffer,
    ULONG   Count
    );

NTKERNELAPI
VOID
READ_REGISTER_BUFFER_USHORT(
    PUSHORT Register,
    PUSHORT Buffer,
    ULONG   Count
    );

NTKERNELAPI
VOID
READ_REGISTER_BUFFER_ULONG(
    PULONG  Register,
    PULONG  Buffer,
    ULONG   Count
    );


NTKERNELAPI
VOID
WRITE_REGISTER_UCHAR(
    PUCHAR  Register,
    UCHAR   Value
    );

NTKERNELAPI
VOID
WRITE_REGISTER_USHORT(
    PUSHORT Register,
    USHORT  Value
    );

NTKERNELAPI
VOID
WRITE_REGISTER_ULONG(
    PULONG  Register,
    ULONG   Value
    );

NTKERNELAPI
VOID
WRITE_REGISTER_BUFFER_UCHAR(
    PUCHAR  Register,
    PUCHAR  Buffer,
    ULONG   Count
    );

NTKERNELAPI
VOID
WRITE_REGISTER_BUFFER_USHORT(
    PUSHORT Register,
    PUSHORT Buffer,
    ULONG   Count
    );

NTKERNELAPI
VOID
WRITE_REGISTER_BUFFER_ULONG(
    PULONG  Register,
    PULONG  Buffer,
    ULONG   Count
    );

NTKERNELAPI
UCHAR
READ_PORT_UCHAR(
    PUCHAR  Port
    );

NTKERNELAPI
USHORT
READ_PORT_USHORT(
    PUSHORT Port
    );

NTKERNELAPI
ULONG
READ_PORT_ULONG(
    PULONG  Port
    );

NTKERNELAPI
VOID
READ_PORT_BUFFER_UCHAR(
    PUCHAR  Port,
    PUCHAR  Buffer,
    ULONG   Count
    );

NTKERNELAPI
VOID
READ_PORT_BUFFER_USHORT(
    PUSHORT Port,
    PUSHORT Buffer,
    ULONG   Count
    );

NTKERNELAPI
VOID
READ_PORT_BUFFER_ULONG(
    PULONG  Port,
    PULONG  Buffer,
    ULONG   Count
    );

NTKERNELAPI
VOID
WRITE_PORT_UCHAR(
    PUCHAR  Port,
    UCHAR   Value
    );

NTKERNELAPI
VOID
WRITE_PORT_USHORT(
    PUSHORT Port,
    USHORT  Value
    );

NTKERNELAPI
VOID
WRITE_PORT_ULONG(
    PULONG  Port,
    ULONG   Value
    );

NTKERNELAPI
VOID
WRITE_PORT_BUFFER_UCHAR(
    PUCHAR  Port,
    PUCHAR  Buffer,
    ULONG   Count
    );

NTKERNELAPI
VOID
WRITE_PORT_BUFFER_USHORT(
    PUSHORT Port,
    PUSHORT Buffer,
    ULONG   Count
    );

NTKERNELAPI
VOID
WRITE_PORT_BUFFER_ULONG(
    PULONG  Port,
    PULONG  Buffer,
    ULONG   Count
    );


//
// Get data cache fill size.
//

#define KeGetDcacheFillSize() 1L


#define KeFlushIoBuffers(Mdl, ReadOperation, DmaOperation)


#define ExAcquireSpinLock(Lock, OldIrql) KeAcquireSpinLock((Lock), (OldIrql))
#define ExReleaseSpinLock(Lock, OldIrql) KeReleaseSpinLock((Lock), (OldIrql))
#define ExAcquireSpinLockAtDpcLevel(Lock) KeAcquireSpinLockAtDpcLevel(Lock)
#define ExReleaseSpinLockFromDpcLevel(Lock) KeReleaseSpinLockFromDpcLevel(Lock)


#define KeQueryTickCount(CurrentCount ) { \
    PKSYSTEM_TIME _TickCount = *((PKSYSTEM_TIME *)(&KeTickCount)); \
    do {                                                          \
        (CurrentCount)->HighPart = _TickCount->High1Time;          \
        (CurrentCount)->LowPart = _TickCount->LowPart;             \
    } while ((CurrentCount)->HighPart != _TickCount->High2Time);   \
}

//
// The non-volatile 387 state
//

typedef struct _KFLOATING_SAVE {
    ULONG   DoNotUse1;
    ULONG   DoNotUse2;
    ULONG   DoNotUse3;
    ULONG   DoNotUse4;
    ULONG   DoNotUse5;
    ULONG   DoNotUse6;
    ULONG   DoNotUse7;
    ULONG   DoNotUse8;
} KFLOATING_SAVE, *PKFLOATING_SAVE;

//
// i386 Specific portions of mm component
//

//
// Define the page size for the Intel 386 as 4096 (0x1000).
//

#define PAGE_SIZE (ULONG)0x1000

//
// Define the number of trailing zeroes in a page aligned virtual address.
// This is used as the shift count when shifting virtual addresses to
// virtual page numbers.
//

#define PAGE_SHIFT 12L


#define MmGetProcedureAddress(Address) (Address)
#define MmLockPagableCodeSection(Address) MmLockPagableDataSection(Address)


#define ExInterlockedAddUlong           ExfInterlockedAddUlong
#define ExInterlockedInsertHeadList     ExfInterlockedInsertHeadList
#define ExInterlockedInsertTailList     ExfInterlockedInsertTailList
#define ExInterlockedRemoveHeadList     ExfInterlockedRemoveHeadList
#define ExInterlockedPopEntryList       ExfInterlockedPopEntryList
#define ExInterlockedPushEntryList      ExfInterlockedPushEntryList


NTKERNELAPI
LONG
FASTCALL
InterlockedIncrement(
    IN PLONG Addend
    );

NTKERNELAPI
LONG
FASTCALL
InterlockedDecrement(
    IN PLONG Addend
    );

NTKERNELAPI
LONG
FASTCALL
InterlockedExchange(
    IN OUT PLONG Target,
    IN LONG Value
    );

#define InterlockedExchangePointer(Target, Value) \
   (PVOID)InterlockedExchange((PLONG)(Target), (LONG)(Value))

#define InterlockedCompareExchangePointer InterlockedCompareExchange

NTKERNELAPI
PVOID
FASTCALL
InterlockedCompareExchange(
    IN OUT PVOID *Destination,
    IN PVOID ExChange,
    IN PVOID Comperand
    );


#if !defined(MIDL_PASS) && defined(_M_IX86)

//
// i386 function definitions
//

#pragma warning(disable:4035)               // re-enable below


//
// Get current IRQL.
//
// On x86 this function resides in the HAL
//

NTKERNELAPI
KIRQL
KeGetCurrentIrql();


#endif // !defined(MIDL_PASS) && defined(_M_IX86)


NTSTATUS
KeSaveFloatingPointState (
    OUT PKFLOATING_SAVE     FloatSave
    );

NTSTATUS
KeRestoreFloatingPointState (
    IN PKFLOATING_SAVE      FloatSave
    );


#endif // defined(_X86_)


#if defined(_ALPHA_)

//
// Define maximum size of flush multiple TB request.
//

#define FLUSH_MULTIPLE_MAXIMUM 16

//
// Indicate that the Alpha compiler supports the pragma textout construct.
//

#define ALLOC_PRAGMA 1


//
// Include the alpha instruction definitions
//

#include "alphaops.h"

//
// Include reference machine definitions.
//

#include "alpharef.h"


//
// Define function decoration depending on whether a driver, a file system,
// or a kernel component is being built.
//

#define NTKERNELAPI DECLSPEC_IMPORT             
#define NTHALAPI DECLSPEC_IMPORT            
//
// length of dispatch code in interrupt template
//
#define DISPATCH_LENGTH 4

//
// Define IRQL levels across the architecture.
//

#define PASSIVE_LEVEL   0
#define LOW_LEVEL       0
#define APC_LEVEL       1
#define DISPATCH_LEVEL  2
#define HIGH_LEVEL      7
#define SYNCH_LEVEL (IPI_LEVEL-1)

//
// Non-volatile floating point state
//

typedef struct _KFLOATING_SAVE {
    ULONG   Reserved;
} KFLOATING_SAVE, *PKFLOATING_SAVE;

//
// I/O space read and write macros.
//
//  These have to be actual functions on Alpha, because we need
//  to shift the VA and OR in the BYTE ENABLES.
//
//  These can become INLINEs if we require that ALL Alpha systems shift
//  the same number of bits and have the SAME byte enables.
//
//  The READ/WRITE_REGISTER_* calls manipulate I/O registers in MEMORY space?
//
//  The READ/WRITE_PORT_* calls manipulate I/O registers in PORT space?
//

NTHALAPI
UCHAR
READ_REGISTER_UCHAR(
    PUCHAR Register
    );

NTHALAPI
USHORT
READ_REGISTER_USHORT(
    PUSHORT Register
    );

NTHALAPI
ULONG
READ_REGISTER_ULONG(
    PULONG Register
    );

NTHALAPI
VOID
READ_REGISTER_BUFFER_UCHAR(
    PUCHAR  Register,
    PUCHAR  Buffer,
    ULONG   Count
    );

NTHALAPI
VOID
READ_REGISTER_BUFFER_USHORT(
    PUSHORT Register,
    PUSHORT Buffer,
    ULONG   Count
    );

NTHALAPI
VOID
READ_REGISTER_BUFFER_ULONG(
    PULONG  Register,
    PULONG  Buffer,
    ULONG   Count
    );


NTHALAPI
VOID
WRITE_REGISTER_UCHAR(
    PUCHAR Register,
    UCHAR   Value
    );

NTHALAPI
VOID
WRITE_REGISTER_USHORT(
    PUSHORT Register,
    USHORT  Value
    );

NTHALAPI
VOID
WRITE_REGISTER_ULONG(
    PULONG Register,
    ULONG   Value
    );

NTHALAPI
VOID
WRITE_REGISTER_BUFFER_UCHAR(
    PUCHAR  Register,
    PUCHAR  Buffer,
    ULONG   Count
    );

NTHALAPI
VOID
WRITE_REGISTER_BUFFER_USHORT(
    PUSHORT Register,
    PUSHORT Buffer,
    ULONG   Count
    );

NTHALAPI
VOID
WRITE_REGISTER_BUFFER_ULONG(
    PULONG  Register,
    PULONG  Buffer,
    ULONG   Count
    );

NTHALAPI
UCHAR
READ_PORT_UCHAR(
    PUCHAR Port
    );

NTHALAPI
USHORT
READ_PORT_USHORT(
    PUSHORT Port
    );

NTHALAPI
ULONG
READ_PORT_ULONG(
    PULONG  Port
    );

NTHALAPI
VOID
READ_PORT_BUFFER_UCHAR(
    PUCHAR  Port,
    PUCHAR  Buffer,
    ULONG   Count
    );

NTHALAPI
VOID
READ_PORT_BUFFER_USHORT(
    PUSHORT Port,
    PUSHORT Buffer,
    ULONG   Count
    );

NTHALAPI
VOID
READ_PORT_BUFFER_ULONG(
    PULONG  Port,
    PULONG  Buffer,
    ULONG   Count
    );

NTHALAPI
VOID
WRITE_PORT_UCHAR(
    PUCHAR  Port,
    UCHAR   Value
    );

NTHALAPI
VOID
WRITE_PORT_USHORT(
    PUSHORT Port,
    USHORT  Value
    );

NTHALAPI
VOID
WRITE_PORT_ULONG(
    PULONG  Port,
    ULONG   Value
    );

NTHALAPI
VOID
WRITE_PORT_BUFFER_UCHAR(
    PUCHAR  Port,
    PUCHAR  Buffer,
    ULONG   Count
    );

NTHALAPI
VOID
WRITE_PORT_BUFFER_USHORT(
    PUSHORT Port,
    PUSHORT Buffer,
    ULONG   Count
    );

NTHALAPI
VOID
WRITE_PORT_BUFFER_ULONG(
    PULONG  Port,
    PULONG  Buffer,
    ULONG   Count
    );


#if defined(_M_ALPHA) && !defined(RC_INVOKED)

#define InterlockedIncrement _InterlockedIncrement
#define InterlockedDecrement _InterlockedDecrement
#define InterlockedExchange _InterlockedExchange
#define InterlockedExchangeAdd _InterlockedExchangeAdd
#define InterlockedCompareExchange _InterlockedCompareExchange

LONG
InterlockedIncrement(
    PLONG Addend
    );

LONG
InterlockedDecrement(
    PLONG Addend
    );

LONG
InterlockedExchange(
    PLONG Target,
    LONG Value
    );

#define InterlockedExchangePointer(Target, Value) \
   (PVOID)InterlockedExchange((PLONG)(Target), (LONG)(Value))

#define InterlockedCompareExchangePointer InterlockedCompareExchange

LONG
InterlockedExchangeAdd(
    IN OUT PLONG Addend,
    IN LONG Value
    );

PVOID
InterlockedCompareExchange (
    IN OUT PVOID *Destination,
    IN PVOID ExChange,
    IN PVOID Comperand
    );

#pragma intrinsic(_InterlockedIncrement)
#pragma intrinsic(_InterlockedDecrement)
#pragma intrinsic(_InterlockedExchange)
#pragma intrinsic(_InterlockedExchangeAdd)
#pragma intrinsic(_InterlockedCompareExchange)

#define InterlockedCompareExchange64 ExpInterlockedCompareExchange64

NTKERNELAPI
ULONGLONG
ExpInterlockedCompareExchange64 (
    IN PULONGLONG Destination,
    IN PULONGLONG Exchange,
    IN PULONGLONG Comperand
    );

#endif

// there is a lot of other stuff that could go in here
//   probe macros
//   others

//
// Define the page size for the Alpha ev4 and lca as 8k.
//

#define PAGE_SIZE (ULONG)0x2000

//
// Define the number of trailing zeroes in a page aligned virtual address.
// This is used as the shift count when shifting virtual addresses to
// virtual page numbers.
//

#define PAGE_SHIFT 13L


#define MmGetProcedureAddress(Address) (Address)
#define MmLockPagableCodeSection(Address) MmLockPagableDataSection(Address)

//
// The lowest address for system space.
//

#define MM_LOWEST_SYSTEM_ADDRESS (PVOID)0xC0800000

//
// Define prototypes to access PCR values
//

NTKERNELAPI
KIRQL
KeGetCurrentIrql();

#define KeSaveFloatingPointState(a)         STATUS_SUCCESS
#define KeRestoreFloatingPointState(a)      STATUS_SUCCESS

//
// Cache and write buffer flush functions.
//

VOID
KeFlushIoBuffers (
    IN PMDL Mdl,
    IN BOOLEAN ReadOperation,
    IN BOOLEAN DmaOperation
    );


#define KeQueryTickCount(CurrentCount ) \
    *(PULONGLONG)(CurrentCount) = **((volatile ULONGLONG **)(&KeTickCount));


#define ExAcquireSpinLock(Lock, OldIrql) KeAcquireSpinLock((Lock), (OldIrql))
#define ExReleaseSpinLock(Lock, OldIrql) KeReleaseSpinLock((Lock), (OldIrql))
#define ExAcquireSpinLockAtDpcLevel(Lock) KeAcquireSpinLockAtDpcLevel(Lock)
#define ExReleaseSpinLockFromDpcLevel(Lock) KeReleaseSpinLockFromDpcLevel(Lock)

#endif // _ALPHA_

#if defined(_IA64_)
//
// Define maximum size of flush multiple TB request.
//

#define FLUSH_MULTIPLE_MAXIMUM 100

//
// Indicate that the IA64 compiler supports the pragma textout construct.
//

#define ALLOC_PRAGMA 1

//
// Define function decoration depending on whether a driver, a file system,
// or a kernel component is being built.
//

#define NTKERNELAPI DECLSPEC_IMPORT             
#define NTHALAPI DECLSPEC_IMPORT                

//
// Define length of interrupt vector table.
//

#define MAXIMUM_VECTOR 256


//
// IA64 Interrupt Definitions.
//
// Define length of interupt object dispatch code in longwords.
//

#define DISPATCH_LENGTH 3*2               // Length of dispatch code plable in 32-bit words

//
// Begin of a block of definitions that must be synchronized with kxia64.h.
//

//
// Define Interrupt Request Levels.
//

#define PASSIVE_LEVEL            0      // Passive release level
#define LOW_LEVEL                0      // Lowest interrupt level
#define APC_LEVEL                1      // APC interrupt level
#define DISPATCH_LEVEL           2      // Dispatcher level
#define CMC_LEVEL                3      // Correctable machine check level
#define DEVICE_LEVEL_BASE        4      // 4 - 11 - Device IRQLs
#define PROFILE_LEVEL           12      // Profiling level
#define PC_LEVEL                12      // Performance Counter IRQL
#define CLOCK_LEVEL             13      // Clock Timer IRQL
#define SYNCH_LEVEL             (IPI_LEVEL-1)  // Synchronization level
#define IPI_LEVEL               14      // Interprocessor interrupt level
#define POWER_LEVEL             15      // Power failure level
#define HIGH_LEVEL              15      // Highest interrupt level

//
// The current IRQL is maintained in the TPR.mic field. The
// shift count is the number of bits to shift right to extract the
// IRQL from the TPR. See the GET/SET_IRQL macros.
//

#define TPR_MIC        4
#define TPR_IRQL_SHIFT TPR_MIC

// To go from vector number <-> IRQL we just do a shift
#define VECTOR_IRQL_SHIFT TPR_IRQL_SHIFT

//
// Interrupt Vector Definitions
//

#define APC_VECTOR          APC_LEVEL << VECTOR_IRQL_SHIFT
#define DISPATCH_VECTOR     DISPATCH_LEVEL << VECTOR_IRQL_SHIFT

//
// End of a block of definitions that must be synchronized with kxia64.h.
//

//
// Define profile intervals.
//

#define DEFAULT_PROFILE_COUNT 0x40000000 // ~= 20 seconds @50mhz
#define DEFAULT_PROFILE_INTERVAL (10 * 500) // 500 microseconds
#define MAXIMUM_PROFILE_INTERVAL (10 * 1000 * 1000) // 1 second
#define MINIMUM_PROFILE_INTERVAL (10 * 40) // 40 microseconds

#if defined(_M_IA64) && !defined(RC_INVOKED)

//
// **** TBD change if this are made intrinsics
// Intrinsic interlocked functions.
//

// #define InterlockedIncrement _InterlockedIncrement
// #define InterlockedDecrement _InterlockedDecrement
// #define InterlockedExchange _InterlockedExchange
// #define InterlockedExchangeAdd _InterlockedExchangeAdd
// #define InterlockedCompareExchange _InterlockedCompareExchange

LONG
InterlockedIncrement(
    IN OUT PLONG Addend
    );

LONG
InterlockedDecrement(
    IN OUT PLONG Addend
    );

LONG
InterlockedExchange(
    IN OUT PLONG Target,
    IN LONG Value
    );

LONG
InterlockedExchangeAdd(
    IN OUT PLONG Addend,
    IN LONG Value
    );

PVOID
InterlockedCompareExchange (
    IN OUT PVOID *Destination,
    IN PVOID ExChange,
    IN PVOID Comperand
    );

#define InterlockedCompareExchange64 ExpInterlockedCompareExchange64

NTKERNELAPI
ULONGLONG
ExpInterlockedCompareExchange64 (
    IN PULONGLONG Destination,
    IN PULONGLONG Exchange,
    IN PULONGLONG Comperand
    );

#endif // defined(_M_IA64) && !defined(RC_INVOKED)


//
// Prototype for get current IRQL. **** TBD (read TPR)
//

NTKERNELAPI
KIRQL
KeGetCurrentIrql();

//
// Cache and write buffer flush functions.
//

NTKERNELAPI
VOID
KeFlushIoBuffers (
    IN PMDL Mdl,
    IN BOOLEAN ReadOperation,
    IN BOOLEAN DmaOperation
    );


//
// Kernel breakin breakpoint
//

VOID
KeBreakinBreakpoint (
    VOID
    );


#define ExAcquireSpinLock(Lock, OldIrql) \
    *(OldIrql) = KeAcquireSpinLockRaiseToDpc((Lock))

#define ExReleaseSpinLock(Lock, OldIrql) KeReleaseSpinLock((Lock), (OldIrql))
#define ExAcquireSpinLockAtDpcLevel(Lock) KeAcquireSpinLockAtDpcLevel(Lock)
#define ExReleaseSpinLockFromDpcLevel(Lock) KeReleaseSpinLockFromDpcLevel(Lock)


#define KeQueryTickCount(CurrentCount ) \
    *(PULONGLONG)(CurrentCount) = **((volatile ULONGLONG **)(&KeTickCount));

//
// I/O space read and write macros.
//

#define READ_REGISTER_UCHAR(x) \
    *(volatile UCHAR * const)(x)

#define READ_REGISTER_USHORT(x) \
    *(volatile USHORT * const)(x)

#define READ_REGISTER_ULONG(x) \
    *(volatile ULONG * const)(x)

#define READ_REGISTER_BUFFER_UCHAR(x, y, z) {                           \
    PUCHAR registerBuffer = x;                                          \
    PUCHAR readBuffer = y;                                              \
    ULONG readCount;                                                    \
    for (readCount = z; readCount--; readBuffer++, registerBuffer++) {  \
        *readBuffer = *(volatile UCHAR * const)(registerBuffer);        \
    }                                                                   \
}

#define READ_REGISTER_BUFFER_USHORT(x, y, z) {                          \
    PUSHORT registerBuffer = x;                                         \
    PUSHORT readBuffer = y;                                             \
    ULONG readCount;                                                    \
    for (readCount = z; readCount--; readBuffer++, registerBuffer++) {  \
        *readBuffer = *(volatile USHORT * const)(registerBuffer);       \
    }                                                                   \
}

#define READ_REGISTER_BUFFER_ULONG(x, y, z) {                           \
    PULONG registerBuffer = x;                                          \
    PULONG readBuffer = y;                                              \
    ULONG readCount;                                                    \
    for (readCount = z; readCount--; readBuffer++, registerBuffer++) {  \
        *readBuffer = *(volatile ULONG * const)(registerBuffer);        \
    }                                                                   \
}

#define WRITE_REGISTER_UCHAR(x, y) {    \
    *(volatile UCHAR * const)(x) = y;   \
    KeFlushWriteBuffer();               \
}

#define WRITE_REGISTER_USHORT(x, y) {   \
    *(volatile USHORT * const)(x) = y;  \
    KeFlushWriteBuffer();               \
}

#define WRITE_REGISTER_ULONG(x, y) {    \
    *(volatile ULONG * const)(x) = y;   \
    KeFlushWriteBuffer();               \
}

#define WRITE_REGISTER_BUFFER_UCHAR(x, y, z) {                            \
    PUCHAR registerBuffer = x;                                            \
    PUCHAR writeBuffer = y;                                               \
    ULONG writeCount;                                                     \
    for (writeCount = z; writeCount--; writeBuffer++, registerBuffer++) { \
        *(volatile UCHAR * const)(registerBuffer) = *writeBuffer;         \
    }                                                                     \
    KeFlushWriteBuffer();                                                 \
}

#define WRITE_REGISTER_BUFFER_USHORT(x, y, z) {                           \
    PUSHORT registerBuffer = x;                                           \
    PUSHORT writeBuffer = y;                                              \
    ULONG writeCount;                                                     \
    for (writeCount = z; writeCount--; writeBuffer++, registerBuffer++) { \
        *(volatile USHORT * const)(registerBuffer) = *writeBuffer;        \
    }                                                                     \
    KeFlushWriteBuffer();                                                 \
}

#define WRITE_REGISTER_BUFFER_ULONG(x, y, z) {                            \
    PULONG registerBuffer = x;                                            \
    PULONG writeBuffer = y;                                               \
    ULONG writeCount;                                                     \
    for (writeCount = z; writeCount--; writeBuffer++, registerBuffer++) { \
        *(volatile ULONG * const)(registerBuffer) = *writeBuffer;         \
    }                                                                     \
    KeFlushWriteBuffer();                                                 \
}


#define READ_PORT_UCHAR(x) \
    *(volatile UCHAR * const)(x)

#define READ_PORT_USHORT(x) \
    *(volatile USHORT * const)(x)

#define READ_PORT_ULONG(x) \
    *(volatile ULONG * const)(x)

#define READ_PORT_BUFFER_UCHAR(x, y, z) {                             \
    PUCHAR readBuffer = y;                                            \
    ULONG readCount;                                                  \
    for (readCount = 0; readCount < z; readCount++, readBuffer++) {   \
        *readBuffer = *(volatile UCHAR * const)(x);                   \
    }                                                                 \
}

#define READ_PORT_BUFFER_USHORT(x, y, z) {                            \
    PUSHORT readBuffer = y;                                            \
    ULONG readCount;                                                  \
    for (readCount = 0; readCount < z; readCount++, readBuffer++) {   \
        *readBuffer = *(volatile USHORT * const)(x);                  \
    }                                                                 \
}

#define READ_PORT_BUFFER_ULONG(x, y, z) {                             \
    PULONG readBuffer = y;                                            \
    ULONG readCount;                                                  \
    for (readCount = 0; readCount < z; readCount++, readBuffer++) {   \
        *readBuffer = *(volatile ULONG * const)(x);                   \
    }                                                                 \
}

#define WRITE_PORT_UCHAR(x, y) {        \
    *(volatile UCHAR * const)(x) = y;   \
    KeFlushWriteBuffer();               \
}

#define WRITE_PORT_USHORT(x, y) {       \
    *(volatile USHORT * const)(x) = y;  \
    KeFlushWriteBuffer();               \
}

#define WRITE_PORT_ULONG(x, y) {        \
    *(volatile ULONG * const)(x) = y;   \
    KeFlushWriteBuffer();               \
}

#define WRITE_PORT_BUFFER_UCHAR(x, y, z) {                                \
    PUCHAR writeBuffer = y;                                               \
    ULONG writeCount;                                                     \
    for (writeCount = 0; writeCount < z; writeCount++, writeBuffer++) {   \
        *(volatile UCHAR * const)(x) = *writeBuffer;                      \
        KeFlushWriteBuffer();                                             \
    }                                                                     \
}

#define WRITE_PORT_BUFFER_USHORT(x, y, z) {                               \
    PUSHORT writeBuffer = y;                                              \
    ULONG writeCount;                                                     \
    for (writeCount = 0; writeCount < z; writeCount++, writeBuffer++) {   \
        *(volatile USHORT * const)(x) = *writeBuffer;                     \
        KeFlushWriteBuffer();                                             \
    }                                                                     \
}

#define WRITE_PORT_BUFFER_ULONG(x, y, z) {                                \
    PULONG writeBuffer = y;                                               \
    ULONG writeCount;                                                     \
    for (writeCount = 0; writeCount < z; writeCount++, writeBuffer++) {   \
        *(volatile ULONG * const)(x) = *writeBuffer;                      \
        KeFlushWriteBuffer();                                             \
    }                                                                     \
}


//
// Define the page size for the IA64 as 4096 (0x1000)
//

#define PAGE_SIZE 0x1000

//
// Define the number of trailing zeroes in a page aligned virtual address.
// This is used as the shift count when shifting virtual addresses to
// virtual page numbers.
//

#define PAGE_SHIFT 12L


#define MmGetProcedureAddress(Address) (Address)
#define MmLockPagableCodeSection(PLabelAddress) \
    MmLockPagableDataSection((PVOID)(*((PULONGLONG)PLabelAddress+1)))

//
// The lowest address for system space.
//

#define MM_LOWEST_SYSTEM_ADDRESS (PVOID)0xC0C00000
#endif // defined(_IA64_)

#if defined(_X86_)

//
// Define system time structure.
//

typedef struct _KSYSTEM_TIME {
    ULONG LowPart;
    LONG High1Time;
    LONG High2Time;
} KSYSTEM_TIME, *PKSYSTEM_TIME;

#endif


#ifdef _X86_

//
// Disable these two pramas that evaluate to "sti" "cli" on x86 so that driver
// writers to not leave them inadvertantly in their code.
//

#if !defined(MIDL_PASS)
#if !defined(RC_INVOKED)

#pragma warning(disable:4164)   // disable C4164 warning so that apps that
                                // build with /Od don't get weird errors !
#ifdef _M_IX86
#pragma function(_enable)
#pragma function(_disable)
#endif

#pragma warning(default:4164)   // reenable C4164 warning

#endif
#endif

#endif // _X86_

#if defined(_ALPHA_)

//
// Define system time structure.
//

typedef ULONGLONG KSYSTEM_TIME;
typedef KSYSTEM_TIME *PKSYSTEM_TIME;

#endif

#ifdef _ALPHA_                  
#endif 
#ifdef _IA64_

//
// Define system time structure (use alpha approach).
//

typedef ULONGLONG KSYSTEM_TIME;
typedef KSYSTEM_TIME *PKSYSTEM_TIME;

#endif // _IA64_

#ifdef _IA64_

#endif // _IA64_
//
// Event Specific Access Rights.
//

#define EVENT_QUERY_STATE       0x0001
#define EVENT_MODIFY_STATE      0x0002  
#define EVENT_ALL_ACCESS (STANDARD_RIGHTS_REQUIRED|SYNCHRONIZE|0x3) 

//
// Semaphore Specific Access Rights.
//

#define SEMAPHORE_QUERY_STATE       0x0001
#define SEMAPHORE_MODIFY_STATE      0x0002  

#define SEMAPHORE_ALL_ACCESS (STANDARD_RIGHTS_REQUIRED|SYNCHRONIZE|0x3) 


//
// Predefined Value Types.
//

#define REG_NONE                    ( 0 )   // No value type
#define REG_SZ                      ( 1 )   // Unicode nul terminated string
#define REG_EXPAND_SZ               ( 2 )   // Unicode nul terminated string
                                            // (with environment variable references)
#define REG_BINARY                  ( 3 )   // Free form binary
#define REG_DWORD                   ( 4 )   // 32-bit number
#define REG_DWORD_LITTLE_ENDIAN     ( 4 )   // 32-bit number (same as REG_DWORD)
#define REG_DWORD_BIG_ENDIAN        ( 5 )   // 32-bit number
#define REG_LINK                    ( 6 )   // Symbolic Link (unicode)
#define REG_MULTI_SZ                ( 7 )   // Multiple Unicode strings
#define REG_RESOURCE_LIST           ( 8 )   // Resource list in the resource map
#define REG_FULL_RESOURCE_DESCRIPTOR ( 9 )  // Resource list in the hardware description
#define REG_RESOURCE_REQUIREMENTS_LIST ( 10 )

//
// Service Types (Bit Mask)
//
#define SERVICE_KERNEL_DRIVER          0x00000001
#define SERVICE_FILE_SYSTEM_DRIVER     0x00000002
#define SERVICE_ADAPTER                0x00000004
#define SERVICE_RECOGNIZER_DRIVER      0x00000008

#define SERVICE_DRIVER                 (SERVICE_KERNEL_DRIVER | \
                                        SERVICE_FILE_SYSTEM_DRIVER | \
                                        SERVICE_RECOGNIZER_DRIVER)

#define SERVICE_WIN32_OWN_PROCESS      0x00000010
#define SERVICE_WIN32_SHARE_PROCESS    0x00000020
#define SERVICE_WIN32                  (SERVICE_WIN32_OWN_PROCESS | \
                                        SERVICE_WIN32_SHARE_PROCESS)

#define SERVICE_INTERACTIVE_PROCESS    0x00000100

#define SERVICE_TYPE_ALL               (SERVICE_WIN32  | \
                                        SERVICE_ADAPTER | \
                                        SERVICE_DRIVER  | \
                                        SERVICE_INTERACTIVE_PROCESS)

//
// Start Type
//

#define SERVICE_BOOT_START             0x00000000
#define SERVICE_SYSTEM_START           0x00000001
#define SERVICE_AUTO_START             0x00000002
#define SERVICE_DEMAND_START           0x00000003
#define SERVICE_DISABLED               0x00000004

//
// Error control type
//
#define SERVICE_ERROR_IGNORE           0x00000000
#define SERVICE_ERROR_NORMAL           0x00000001
#define SERVICE_ERROR_SEVERE           0x00000002
#define SERVICE_ERROR_CRITICAL         0x00000003

//
//
// Define the registry driver node enumerations
//

typedef enum _CM_SERVICE_NODE_TYPE {
    DriverType               = SERVICE_KERNEL_DRIVER,
    FileSystemType           = SERVICE_FILE_SYSTEM_DRIVER,
    Win32ServiceOwnProcess   = SERVICE_WIN32_OWN_PROCESS,
    Win32ServiceShareProcess = SERVICE_WIN32_SHARE_PROCESS,
    AdapterType              = SERVICE_ADAPTER,
    RecognizerType           = SERVICE_RECOGNIZER_DRIVER
} SERVICE_NODE_TYPE;

typedef enum _CM_SERVICE_LOAD_TYPE {
    BootLoad    = SERVICE_BOOT_START,
    SystemLoad  = SERVICE_SYSTEM_START,
    AutoLoad    = SERVICE_AUTO_START,
    DemandLoad  = SERVICE_DEMAND_START,
    DisableLoad = SERVICE_DISABLED
} SERVICE_LOAD_TYPE;

typedef enum _CM_ERROR_CONTROL_TYPE {
    IgnoreError   = SERVICE_ERROR_IGNORE,
    NormalError   = SERVICE_ERROR_NORMAL,
    SevereError   = SERVICE_ERROR_SEVERE,
    CriticalError = SERVICE_ERROR_CRITICAL
} SERVICE_ERROR_TYPE;



//
// Resource List definitions
//



//
// Defines the Type in the RESOURCE_DESCRIPTOR
//
// NOTE:  For all CM_RESOURCE_TYPE values, there must be a
// corresponding ResType value in the 32-bit ConfigMgr headerfile
// (cfgmgr32.h).  Values in the range [0x6,0x80) use the same values
// as their ConfigMgr counterparts.  CM_RESOURCE_TYPE values with
// the high bit set (i.e., in the range [0x80,0xFF]), are
// non-arbitrated resources.  These correspond to the same values
// in cfgmgr32.h that have their high bit set (however, since
// cfgmgr32.h uses 16 bits for ResType values, these values are in
// the range [0x8000,0x807F).  Note that ConfigMgr ResType values
// cannot be in the range [0x8080,0xFFFF), because they would not
// be able to map into CM_RESOURCE_TYPE values.  (0xFFFF itself is
// a special value, because it maps to CmResourceTypeDeviceSpecific.)
//

typedef int CM_RESOURCE_TYPE;

// CmResourceTypeNull is reserved

#define CmResourceTypeNull                0   // ResType_All or ResType_None (0x0000)
#define CmResourceTypePort                1   // ResType_IO (0x0002)
#define CmResourceTypeInterrupt           2   // ResType_IRQ (0x0004)
#define CmResourceTypeMemory              3   // ResType_Mem (0x0001)
#define CmResourceTypeDma                 4   // ResType_DMA (0x0003)
#define CmResourceTypeDeviceSpecific      5   // ResType_ClassSpecific (0xFFFF)
#define CmResourceTypeBusNumber           6   // ResType_BusNumber (0x0006)
#define CmResourceTypeNonArbitrated     128   // Not arbitrated if 0x80 bit set
#define CmResourceTypeConfigData        128   // ResType_Reserved (0x8000)
#define CmResourceTypeDevicePrivate     129   // ResType_DevicePrivate (0x8001)
#define CmResourceTypePcCardConfig      130   // ResType_PcCardConfig (0x8002)

//
// Defines the ShareDisposition in the RESOURCE_DESCRIPTOR
//

typedef enum _CM_SHARE_DISPOSITION {
    CmResourceShareUndetermined = 0,    // Reserved
    CmResourceShareDeviceExclusive,
    CmResourceShareDriverExclusive,
    CmResourceShareShared
} CM_SHARE_DISPOSITION;

//
// Define the PASSIGNED_RESOURCE type
//

#ifndef PASSIGNED_RESOURCE_DEFINED
#define PASSIGNED_RESOURCE_DEFINED
typedef PVOID PASSIGNED_RESOURCE;
#endif // PASSIGNED_RESOURCE_DEFINED


//
// Define the bit masks for Flags when type is CmResourceTypeInterrupt
//

#define CM_RESOURCE_INTERRUPT_LEVEL_SENSITIVE 0
#define CM_RESOURCE_INTERRUPT_LATCHED         1

//
// Define the bit masks for Flags when type is CmResourceTypeMemory
//

#define CM_RESOURCE_MEMORY_READ_WRITE       0x0000
#define CM_RESOURCE_MEMORY_READ_ONLY        0x0001
#define CM_RESOURCE_MEMORY_WRITE_ONLY       0x0002
#define CM_RESOURCE_MEMORY_PREFETCHABLE     0x0004

#define CM_RESOURCE_MEMORY_COMBINEDWRITE    0x0008
#define CM_RESOURCE_MEMORY_24               0x0010
#define CM_RESOURCE_MEMORY_CACHEABLE        0x0020

//
// Define the bit masks for Flags when type is CmResourceTypePort
//

#define CM_RESOURCE_PORT_MEMORY                             0x0000
#define CM_RESOURCE_PORT_IO                                 0x0001
#define CM_RESOURCE_PORT_10_BIT_DECODE                      0x0004
#define CM_RESOURCE_PORT_12_BIT_DECODE                      0x0008
#define CM_RESOURCE_PORT_16_BIT_DECODE                      0x0010
#define CM_RESOURCE_PORT_POSITIVE_DECODE                    0x0020

//
// Define the bit masks for Flags when type is CmResourceTypeDma
//

#define CM_RESOURCE_DMA_8                   0x0000
#define CM_RESOURCE_DMA_16                  0x0001
#define CM_RESOURCE_DMA_32                  0x0002
#define CM_RESOURCE_DMA_8_AND_16            0x0004
#define CM_RESOURCE_DMA_BUS_MASTER          0x0008
#define CM_RESOURCE_DMA_TYPE_A              0x0010
#define CM_RESOURCE_DMA_TYPE_B              0x0020
#define CM_RESOURCE_DMA_TYPE_F              0x0040

//
// This structure defines one type of resource used by a driver.
//
// There can only be *1* DeviceSpecificData block. It must be located at
// the end of all resource descriptors in a full descriptor block.
//

//
// BUGBUG Make sure alignment is made properly by compiler; otherwise move
// flags back to the top of the structure (common to all members of the
// union).
//


#include "pshpack4.h"
typedef struct _CM_PARTIAL_RESOURCE_DESCRIPTOR {
    UCHAR Type;
    UCHAR ShareDisposition;
    USHORT Flags;
    union {

        //
        // Range of resources, inclusive.  These are physical, bus relative.
        // It is known that Port and Memory below have the exact same layout
        // as Generic.
        //

        struct {
            PHYSICAL_ADDRESS Start;
            ULONG Length;
        } Generic;

        //
        //

        struct {
            PHYSICAL_ADDRESS Start;
            ULONG Length;
        } Port;

        //
        //

        struct {
            ULONG Level;
            ULONG Vector;
            ULONG Affinity;
        } Interrupt;

        //
        // Range of memory addresses, inclusive. These are physical, bus
        // relative. The value should be the same as the one passed to
        // HalTranslateBusAddress().
        //

        struct {
            PHYSICAL_ADDRESS Start;    // 64 bit physical addresses.
            ULONG Length;
        } Memory;

        //
        // Physical DMA channel.
        //

        struct {
            ULONG Channel;
            ULONG Port;
            ULONG Reserved1;
        } Dma;

        //
        // Device driver private data, usually used to help it figure
        // what the resource assignments decisions that were made.
        //

        struct {
            ULONG Data[3];
        } DevicePrivate;

        //
        // Bus Number information.
        //

        struct {
            ULONG Start;
            ULONG Length;
            ULONG Reserved;
        } BusNumber;

        //
        // Device Specific information defined by the driver.
        // The DataSize field indicates the size of the data in bytes. The
        // data is located immediately after the DeviceSpecificData field in
        // the structure.
        //

        struct {
            ULONG DataSize;
            ULONG Reserved1;
            ULONG Reserved2;
        } DeviceSpecificData;
    } u;
} CM_PARTIAL_RESOURCE_DESCRIPTOR, *PCM_PARTIAL_RESOURCE_DESCRIPTOR;
#include "poppack.h"

//
// A Partial Resource List is what can be found in the ARC firmware
// or will be generated by ntdetect.com.
// The configuration manager will transform this structure into a Full
// resource descriptor when it is about to store it in the regsitry.
//
// Note: There must a be a convention to the order of fields of same type,
// (defined on a device by device basis) so that the fields can make sense
// to a driver (i.e. when multiple memory ranges are necessary).
//

typedef struct _CM_PARTIAL_RESOURCE_LIST {
    USHORT Version;
    USHORT Revision;
    ULONG Count;
    CM_PARTIAL_RESOURCE_DESCRIPTOR PartialDescriptors[1];
} CM_PARTIAL_RESOURCE_LIST, *PCM_PARTIAL_RESOURCE_LIST;

//
// A Full Resource Descriptor is what can be found in the registry.
// This is what will be returned to a driver when it queries the registry
// to get device information; it will be stored under a key in the hardware
// description tree.
//
// Note: There must a be a convention to the order of fields of same type,
// (defined on a device by device basis) so that the fields can make sense
// to a driver (i.e. when multiple memory ranges are necessary).
//

typedef struct _CM_FULL_RESOURCE_DESCRIPTOR {
    INTERFACE_TYPE DoNotUse1;
    ULONG DoNotUse2;
    CM_PARTIAL_RESOURCE_LIST PartialResourceList;
} CM_FULL_RESOURCE_DESCRIPTOR, *PCM_FULL_RESOURCE_DESCRIPTOR;

//
// The Resource list is what will be stored by the drivers into the
// resource map via the IO API.
//

typedef struct _CM_RESOURCE_LIST {
    ULONG Count;
    CM_FULL_RESOURCE_DESCRIPTOR List[1];
} CM_RESOURCE_LIST, *PCM_RESOURCE_LIST;


//
// Define the structures used to interpret configuration data of
// \\Registry\machine\hardware\description tree.
// Basically, these structures are used to interpret component
// sepcific data.
//

//
// Define DEVICE_FLAGS
//

typedef struct _DEVICE_FLAGS {
    ULONG Failed : 1;
    ULONG ReadOnly : 1;
    ULONG Removable : 1;
    ULONG ConsoleIn : 1;
    ULONG ConsoleOut : 1;
    ULONG Input : 1;
    ULONG Output : 1;
} DEVICE_FLAGS, *PDEVICE_FLAGS;

//
// Define Component Information structure
//

typedef struct _CM_COMPONENT_INFORMATION {
    DEVICE_FLAGS Flags;
    ULONG Version;
    ULONG Key;
    ULONG AffinityMask;
} CM_COMPONENT_INFORMATION, *PCM_COMPONENT_INFORMATION;

//
// The following structures are used to interpret x86
// DeviceSpecificData of CM_PARTIAL_RESOURCE_DESCRIPTOR.
// (Most of the structures are defined by BIOS.  They are
// not aligned on word (or dword) boundary.
//

//
// Define the Rom Block structure
//

typedef struct _CM_ROM_BLOCK {
    ULONG Address;
    ULONG Size;
} CM_ROM_BLOCK, *PCM_ROM_BLOCK;



#include "pshpack1.h"



//
// Define INT13 driver parameter block
//

typedef struct _CM_INT13_DRIVE_PARAMETER {
    USHORT DriveSelect;
    ULONG MaxCylinders;
    USHORT SectorsPerTrack;
    USHORT MaxHeads;
    USHORT NumberDrives;
} CM_INT13_DRIVE_PARAMETER, *PCM_INT13_DRIVE_PARAMETER;



//
// Define Mca POS data block for slot
//

typedef struct _CM_MCA_POS_DATA {
    USHORT AdapterId;
    UCHAR PosData1;
    UCHAR PosData2;
    UCHAR PosData3;
    UCHAR PosData4;
} CM_MCA_POS_DATA, *PCM_MCA_POS_DATA;

//
// Memory configuration of eisa data block structure
//

typedef struct _EISA_MEMORY_TYPE {
    UCHAR ReadWrite: 1;
    UCHAR Cached : 1;
    UCHAR Reserved0 :1;
    UCHAR Type:2;
    UCHAR Shared:1;
    UCHAR Reserved1 :1;
    UCHAR MoreEntries : 1;
} EISA_MEMORY_TYPE, *PEISA_MEMORY_TYPE;

typedef struct _EISA_MEMORY_CONFIGURATION {
    EISA_MEMORY_TYPE ConfigurationByte;
    UCHAR DataSize;
    USHORT AddressLowWord;
    UCHAR AddressHighByte;
    USHORT MemorySize;
} EISA_MEMORY_CONFIGURATION, *PEISA_MEMORY_CONFIGURATION;


//
// Interrupt configurationn of eisa data block structure
//

typedef struct _EISA_IRQ_DESCRIPTOR {
    UCHAR Interrupt : 4;
    UCHAR Reserved :1;
    UCHAR LevelTriggered :1;
    UCHAR Shared : 1;
    UCHAR MoreEntries : 1;
} EISA_IRQ_DESCRIPTOR, *PEISA_IRQ_DESCRIPTOR;

typedef struct _EISA_IRQ_CONFIGURATION {
    EISA_IRQ_DESCRIPTOR ConfigurationByte;
    UCHAR Reserved;
} EISA_IRQ_CONFIGURATION, *PEISA_IRQ_CONFIGURATION;


//
// DMA description of eisa data block structure
//

typedef struct _DMA_CONFIGURATION_BYTE0 {
    UCHAR Channel : 3;
    UCHAR Reserved : 3;
    UCHAR Shared :1;
    UCHAR MoreEntries :1;
} DMA_CONFIGURATION_BYTE0;

typedef struct _DMA_CONFIGURATION_BYTE1 {
    UCHAR Reserved0 : 2;
    UCHAR TransferSize : 2;
    UCHAR Timing : 2;
    UCHAR Reserved1 : 2;
} DMA_CONFIGURATION_BYTE1;

typedef struct _EISA_DMA_CONFIGURATION {
    DMA_CONFIGURATION_BYTE0 ConfigurationByte0;
    DMA_CONFIGURATION_BYTE1 ConfigurationByte1;
} EISA_DMA_CONFIGURATION, *PEISA_DMA_CONFIGURATION;


//
// Port description of eisa data block structure
//

typedef struct _EISA_PORT_DESCRIPTOR {
    UCHAR NumberPorts : 5;
    UCHAR Reserved :1;
    UCHAR Shared :1;
    UCHAR MoreEntries : 1;
} EISA_PORT_DESCRIPTOR, *PEISA_PORT_DESCRIPTOR;

typedef struct _EISA_PORT_CONFIGURATION {
    EISA_PORT_DESCRIPTOR Configuration;
    USHORT PortAddress;
} EISA_PORT_CONFIGURATION, *PEISA_PORT_CONFIGURATION;


//
// Eisa slot information definition
// N.B. This structure is different from the one defined
//      in ARC eisa addendum.
//

typedef struct _CM_EISA_SLOT_INFORMATION {
    UCHAR ReturnCode;
    UCHAR ReturnFlags;
    UCHAR MajorRevision;
    UCHAR MinorRevision;
    USHORT Checksum;
    UCHAR NumberFunctions;
    UCHAR FunctionInformation;
    ULONG CompressedId;
} CM_EISA_SLOT_INFORMATION, *PCM_EISA_SLOT_INFORMATION;


//
// Eisa function information definition
//

typedef struct _CM_EISA_FUNCTION_INFORMATION {
    ULONG CompressedId;
    UCHAR IdSlotFlags1;
    UCHAR IdSlotFlags2;
    UCHAR MinorRevision;
    UCHAR MajorRevision;
    UCHAR Selections[26];
    UCHAR FunctionFlags;
    UCHAR TypeString[80];
    EISA_MEMORY_CONFIGURATION EisaMemory[9];
    EISA_IRQ_CONFIGURATION EisaIrq[7];
    EISA_DMA_CONFIGURATION EisaDma[4];
    EISA_PORT_CONFIGURATION EisaPort[20];
    UCHAR InitializationData[60];
} CM_EISA_FUNCTION_INFORMATION, *PCM_EISA_FUNCTION_INFORMATION;

//
// The following defines the way pnp bios information is stored in
// the registry \\HKEY_LOCAL_MACHINE\HARDWARE\Description\System\MultifunctionAdapter\x
// key, where x is an integer number indicating adapter instance. The
// "Identifier" of the key must equal to "PNP BIOS" and the
// "ConfigurationData" is organized as follow:
//
//      CM_PNP_BIOS_INSTALLATION_CHECK        +
//      CM_PNP_BIOS_DEVICE_NODE for device 1  +
//      CM_PNP_BIOS_DEVICE_NODE for device 2  +
//                ...
//      CM_PNP_BIOS_DEVICE_NODE for device n
//

//
// Pnp BIOS device node structure
//

typedef struct _CM_PNP_BIOS_DEVICE_NODE {
    USHORT Size;
    UCHAR Node;
    ULONG ProductId;
    UCHAR DeviceType[3];
    USHORT DeviceAttributes;
    // followed by AllocatedResourceBlock, PossibleResourceBlock
    // and CompatibleDeviceId
} CM_PNP_BIOS_DEVICE_NODE,*PCM_PNP_BIOS_DEVICE_NODE;

//
// Pnp BIOS Installation check
//

typedef struct _CM_PNP_BIOS_INSTALLATION_CHECK {
    UCHAR Signature[4];             // $PnP (ascii)
    UCHAR Revision;
    UCHAR Length;
    USHORT ControlField;
    UCHAR Checksum;
    ULONG EventFlagAddress;         // Physical address
    USHORT RealModeEntryOffset;
    USHORT RealModeEntrySegment;
    USHORT ProtectedModeEntryOffset;
    ULONG ProtectedModeCodeBaseAddress;
    ULONG OemDeviceId;
    USHORT RealModeDataBaseAddress;
    ULONG ProtectedModeDataBaseAddress;
} CM_PNP_BIOS_INSTALLATION_CHECK, *PCM_PNP_BIOS_INSTALLATION_CHECK;

#include "poppack.h"

//
// Masks for EISA function information
//

#define EISA_FUNCTION_ENABLED                   0x80
#define EISA_FREE_FORM_DATA                     0x40
#define EISA_HAS_PORT_INIT_ENTRY                0x20
#define EISA_HAS_PORT_RANGE                     0x10
#define EISA_HAS_DMA_ENTRY                      0x08
#define EISA_HAS_IRQ_ENTRY                      0x04
#define EISA_HAS_MEMORY_ENTRY                   0x02
#define EISA_HAS_TYPE_ENTRY                     0x01
#define EISA_HAS_INFORMATION                    EISA_HAS_PORT_RANGE + \
                                                EISA_HAS_DMA_ENTRY + \
                                                EISA_HAS_IRQ_ENTRY + \
                                                EISA_HAS_MEMORY_ENTRY + \
                                                EISA_HAS_TYPE_ENTRY

//
// Masks for EISA memory configuration
//

#define EISA_MORE_ENTRIES                       0x80
#define EISA_SYSTEM_MEMORY                      0x00
#define EISA_MEMORY_TYPE_RAM                    0x01

//
// Returned error code for EISA bios call
//

#define EISA_INVALID_SLOT                       0x80
#define EISA_INVALID_FUNCTION                   0x81
#define EISA_INVALID_CONFIGURATION              0x82
#define EISA_EMPTY_SLOT                         0x83
#define EISA_INVALID_BIOS_CALL                  0x86



//
// The following structures are used to interpret mips
// DeviceSpecificData of CM_PARTIAL_RESOURCE_DESCRIPTOR.
//

//
// Device data records for adapters.
//

//
// The device data record for the Emulex SCSI controller.
//

typedef struct _CM_SCSI_DEVICE_DATA {
    USHORT Version;
    USHORT Revision;
    UCHAR HostIdentifier;
} CM_SCSI_DEVICE_DATA, *PCM_SCSI_DEVICE_DATA;

//
// Device data records for controllers.
//

//
// The device data record for the Video controller.
//

typedef struct _CM_VIDEO_DEVICE_DATA {
    USHORT Version;
    USHORT Revision;
    ULONG VideoClock;
} CM_VIDEO_DEVICE_DATA, *PCM_VIDEO_DEVICE_DATA;

//
// The device data record for the SONIC network controller.
//

typedef struct _CM_SONIC_DEVICE_DATA {
    USHORT Version;
    USHORT Revision;
    USHORT DataConfigurationRegister;
    UCHAR EthernetAddress[8];
} CM_SONIC_DEVICE_DATA, *PCM_SONIC_DEVICE_DATA;

//
// The device data record for the serial controller.
//

typedef struct _CM_SERIAL_DEVICE_DATA {
    USHORT Version;
    USHORT Revision;
    ULONG BaudClock;
} CM_SERIAL_DEVICE_DATA, *PCM_SERIAL_DEVICE_DATA;

//
// Device data records for peripherals.
//

//
// The device data record for the Monitor peripheral.
//

typedef struct _CM_MONITOR_DEVICE_DATA {
    USHORT Version;
    USHORT Revision;
    USHORT HorizontalScreenSize;
    USHORT VerticalScreenSize;
    USHORT HorizontalResolution;
    USHORT VerticalResolution;
    USHORT HorizontalDisplayTimeLow;
    USHORT HorizontalDisplayTime;
    USHORT HorizontalDisplayTimeHigh;
    USHORT HorizontalBackPorchLow;
    USHORT HorizontalBackPorch;
    USHORT HorizontalBackPorchHigh;
    USHORT HorizontalFrontPorchLow;
    USHORT HorizontalFrontPorch;
    USHORT HorizontalFrontPorchHigh;
    USHORT HorizontalSyncLow;
    USHORT HorizontalSync;
    USHORT HorizontalSyncHigh;
    USHORT VerticalBackPorchLow;
    USHORT VerticalBackPorch;
    USHORT VerticalBackPorchHigh;
    USHORT VerticalFrontPorchLow;
    USHORT VerticalFrontPorch;
    USHORT VerticalFrontPorchHigh;
    USHORT VerticalSyncLow;
    USHORT VerticalSync;
    USHORT VerticalSyncHigh;
} CM_MONITOR_DEVICE_DATA, *PCM_MONITOR_DEVICE_DATA;

//
// The device data record for the Floppy peripheral.
//

typedef struct _CM_FLOPPY_DEVICE_DATA {
    USHORT Version;
    USHORT Revision;
    CHAR Size[8];
    ULONG MaxDensity;
    ULONG MountDensity;
    //
    // New data fields for version >= 2.0
    //
    UCHAR StepRateHeadUnloadTime;
    UCHAR HeadLoadTime;
    UCHAR MotorOffTime;
    UCHAR SectorLengthCode;
    UCHAR SectorPerTrack;
    UCHAR ReadWriteGapLength;
    UCHAR DataTransferLength;
    UCHAR FormatGapLength;
    UCHAR FormatFillCharacter;
    UCHAR HeadSettleTime;
    UCHAR MotorSettleTime;
    UCHAR MaximumTrackValue;
    UCHAR DataTransferRate;
} CM_FLOPPY_DEVICE_DATA, *PCM_FLOPPY_DEVICE_DATA;

//
// The device data record for the Keyboard peripheral.
// The KeyboardFlags is defined (by x86 BIOS INT 16h, function 02) as:
//      bit 7 : Insert on
//      bit 6 : Caps Lock on
//      bit 5 : Num Lock on
//      bit 4 : Scroll Lock on
//      bit 3 : Alt Key is down
//      bit 2 : Ctrl Key is down
//      bit 1 : Left shift key is down
//      bit 0 : Right shift key is down
//

typedef struct _CM_KEYBOARD_DEVICE_DATA {
    USHORT Version;
    USHORT Revision;
    UCHAR Type;
    UCHAR Subtype;
    USHORT KeyboardFlags;
} CM_KEYBOARD_DEVICE_DATA, *PCM_KEYBOARD_DEVICE_DATA;

//
// Declaration of the structure for disk geometries
//

typedef struct _CM_DISK_GEOMETRY_DEVICE_DATA {
    ULONG BytesPerSector;
    ULONG NumberOfCylinders;
    ULONG SectorsPerTrack;
    ULONG NumberOfHeads;
} CM_DISK_GEOMETRY_DEVICE_DATA, *PCM_DISK_GEOMETRY_DEVICE_DATA;



//
// Defines Resource Options
//

#define IO_RESOURCE_PREFERRED       0x01
#define IO_RESOURCE_DEFAULT         0x02
#define IO_RESOURCE_ALTERNATIVE     0x08


//
// This structure defines one type of resource requested by the driver
//

typedef struct _IO_RESOURCE_DESCRIPTOR {
    UCHAR Option;
    UCHAR Type;                         // use CM_RESOURCE_TYPE
    UCHAR ShareDisposition;             // use CM_SHARE_DISPOSITION
    UCHAR Spare1;
    USHORT Flags;                       // use CM resource flag defines
    USHORT Spare2;                      // align

    union {
        struct {
            ULONG Length;
            ULONG Alignment;
            PHYSICAL_ADDRESS MinimumAddress;
            PHYSICAL_ADDRESS MaximumAddress;
        } Port;

        struct {
            ULONG Length;
            ULONG Alignment;
            PHYSICAL_ADDRESS MinimumAddress;
            PHYSICAL_ADDRESS MaximumAddress;
        } Memory;

        struct {
            ULONG MinimumVector;
            ULONG MaximumVector;
        } Interrupt;

        struct {
            ULONG MinimumChannel;
            ULONG MaximumChannel;
        } Dma;

        struct {
            ULONG Length;
            ULONG Alignment;
            PHYSICAL_ADDRESS MinimumAddress;
            PHYSICAL_ADDRESS MaximumAddress;
        } Generic;

        struct {
            ULONG Data[3];
        } DevicePrivate;

        //
        // Bus Number information.
        //

        struct {
            ULONG Length;
            ULONG MinBusNumber;
            ULONG MaxBusNumber;
            ULONG Reserved;
        } BusNumber;


        struct {
            ULONG Priority;   // use LCPRI_Xxx values in cfg.h
            ULONG Reserved1;
            ULONG Reserved2;
        } ConfigData;

    } u;

} IO_RESOURCE_DESCRIPTOR, *PIO_RESOURCE_DESCRIPTOR;




typedef struct _IO_RESOURCE_LIST {
    USHORT Version;
    USHORT Revision;

    ULONG Count;
    IO_RESOURCE_DESCRIPTOR Descriptors[1];
} IO_RESOURCE_LIST, *PIO_RESOURCE_LIST;


typedef struct _IO_RESOURCE_REQUIREMENTS_LIST {
    ULONG ListSize;
    INTERFACE_TYPE DoNotUse1;
    ULONG DoNotUse2;
    ULONG DoNotUse3;
    ULONG Reserved[3];
    ULONG AlternativeLists;
    IO_RESOURCE_LIST  List[1];
} IO_RESOURCE_REQUIREMENTS_LIST, *PIO_RESOURCE_REQUIREMENTS_LIST;

//
// Exception flag definitions.
//


#define EXCEPTION_NONCONTINUABLE 0x1    // Noncontinuable exception


//
// Define maximum number of exception parameters.
//


#define EXCEPTION_MAXIMUM_PARAMETERS 15 // maximum number of exception parameters

//
// Exception record definition.
//

typedef struct _EXCEPTION_RECORD {
    NTSTATUS ExceptionCode;
    ULONG ExceptionFlags;
    struct _EXCEPTION_RECORD *ExceptionRecord;
    PVOID ExceptionAddress;
    ULONG NumberParameters;
    ULONG ExceptionInformation[EXCEPTION_MAXIMUM_PARAMETERS];
    } EXCEPTION_RECORD;

typedef EXCEPTION_RECORD *PEXCEPTION_RECORD;

//
// Typedef for pointer returned by exception_info()
//

typedef struct _EXCEPTION_POINTERS {
    PEXCEPTION_RECORD ExceptionRecord;
    PVOID ContextRecord;
} EXCEPTION_POINTERS, *PEXCEPTION_POINTERS;


#define THREAD_WAIT_OBJECTS 3           // Builtin usable wait blocks

//
// Interrupt modes.
//

typedef enum _KINTERRUPT_MODE {
    LevelSensitive,
    Latched
    } KINTERRUPT_MODE;

//
// Wait reasons
//

typedef enum _KWAIT_REASON {
    Executive,
    FreePage,
    PageIn,
    PoolAllocation,
    DelayExecution,
    Suspended,
    UserRequest,
    WrExecutive,
    WrFreePage,
    WrPageIn,
    WrPoolAllocation,
    WrDelayExecution,
    WrSuspended,
    WrUserRequest,
    WrEventPair,
    WrQueue,
    WrLpcReceive,
    WrLpcReply,
    WrVirtualMemory,
    WrPageOut,
    WrRendezvous,
    Spare2,
    Spare3,
    Spare4,
    Spare5,
    Spare6,
    WrKernel,
    MaximumWaitReason
    } KWAIT_REASON;

//
// Common dispatcher object header
//
// N.B. The size field contains the number of dwords in the structure.
//

typedef struct _DISPATCHER_HEADER {
    UCHAR Type;
    UCHAR Absolute;
    UCHAR Size;
    UCHAR Inserted;
    LONG SignalState;
    LIST_ENTRY WaitListHead;
} DISPATCHER_HEADER;


typedef struct _KWAIT_BLOCK {
    LIST_ENTRY WaitListEntry;
    struct _KTHREAD *RESTRICTED_POINTER Thread;
    PVOID Object;
    struct _KWAIT_BLOCK *RESTRICTED_POINTER NextWaitBlock;
    USHORT WaitKey;
    USHORT WaitType;
} KWAIT_BLOCK, *PKWAIT_BLOCK, *RESTRICTED_POINTER PRKWAIT_BLOCK;

//
// Thread start function
//

typedef
VOID
(*PKSTART_ROUTINE) (
    IN PVOID StartContext
    );

//
// Kernel object structure definitions
//

//
// Device Queue object and entry
//

typedef struct _KDEVICE_QUEUE {
    CSHORT Type;
    CSHORT Size;
    LIST_ENTRY DeviceListHead;
    KSPIN_LOCK Lock;
    BOOLEAN Busy;
} KDEVICE_QUEUE, *PKDEVICE_QUEUE, *RESTRICTED_POINTER PRKDEVICE_QUEUE;

typedef struct _KDEVICE_QUEUE_ENTRY {
    LIST_ENTRY DeviceListEntry;
    ULONG SortKey;
    BOOLEAN Inserted;
} KDEVICE_QUEUE_ENTRY, *PKDEVICE_QUEUE_ENTRY, *RESTRICTED_POINTER PRKDEVICE_QUEUE_ENTRY;


//
// Event object
//

typedef struct _KEVENT {
    DISPATCHER_HEADER Header;
} KEVENT, *PKEVENT, *RESTRICTED_POINTER PRKEVENT;

//
// Define the interrupt service function type and the empty struct
// type.
//
typedef
BOOLEAN
(*PKSERVICE_ROUTINE) (
    IN struct _KINTERRUPT *Interrupt,
    IN PVOID ServiceContext
    );
//
// Mutant object
//

typedef struct _KMUTANT {
    DISPATCHER_HEADER Header;
    LIST_ENTRY MutantListEntry;
    struct _KTHREAD *RESTRICTED_POINTER OwnerThread;
    BOOLEAN Abandoned;
    UCHAR ApcDisable;
} KMUTANT, *PKMUTANT, *RESTRICTED_POINTER PRKMUTANT, KMUTEX, *PKMUTEX, *RESTRICTED_POINTER PRKMUTEX;

//
//
// Semaphore object
//

typedef struct _KSEMAPHORE {
    DISPATCHER_HEADER Header;
    LONG Limit;
} KSEMAPHORE, *PKSEMAPHORE, *RESTRICTED_POINTER PRKSEMAPHORE;


//
// Timer object
//

typedef struct _KTIMER {
    DISPATCHER_HEADER Header;
    ULARGE_INTEGER DueTime;
    LIST_ENTRY TimerListEntry;
    struct _KDPC *Dpc;
    LONG Period;
} KTIMER, *PKTIMER, *RESTRICTED_POINTER PRKTIMER;

//
// DPC object
//

NTKERNELAPI
VOID
KeInitializeDpc (
    IN PRKDPC Dpc,
    IN PKDEFERRED_ROUTINE DeferredRoutine,
    IN PVOID DeferredContext
    );

NTKERNELAPI
BOOLEAN
KeInsertQueueDpc (
    IN PRKDPC Dpc,
    IN PVOID SystemArgument1,
    IN PVOID SystemArgument2
    );

NTKERNELAPI
BOOLEAN
KeRemoveQueueDpc (
    IN PRKDPC Dpc
    );

//
// Device queue object
//

NTKERNELAPI
VOID
KeInitializeDeviceQueue (
    IN PKDEVICE_QUEUE DeviceQueue
    );

NTKERNELAPI
BOOLEAN
KeInsertDeviceQueue (
    IN PKDEVICE_QUEUE DeviceQueue,
    IN PKDEVICE_QUEUE_ENTRY DeviceQueueEntry
    );

NTKERNELAPI
BOOLEAN
KeInsertByKeyDeviceQueue (
    IN PKDEVICE_QUEUE DeviceQueue,
    IN PKDEVICE_QUEUE_ENTRY DeviceQueueEntry,
    IN ULONG SortKey
    );

NTKERNELAPI
PKDEVICE_QUEUE_ENTRY
KeRemoveDeviceQueue (
    IN PKDEVICE_QUEUE DeviceQueue
    );

NTKERNELAPI
PKDEVICE_QUEUE_ENTRY
KeRemoveByKeyDeviceQueue (
    IN PKDEVICE_QUEUE DeviceQueue,
    IN ULONG SortKey
    );

NTKERNELAPI
BOOLEAN
KeRemoveEntryDeviceQueue (
    IN PKDEVICE_QUEUE DeviceQueue,
    IN PKDEVICE_QUEUE_ENTRY DeviceQueueEntry
    );

NTKERNELAPI                                         
BOOLEAN                                             
KeSynchronizeExecution (                            
    IN PKINTERRUPT Interrupt,                       
    IN PKSYNCHRONIZE_ROUTINE SynchronizeRoutine,    
    IN PVOID SynchronizeContext                     
    );                                              
                                                    
//
// Kernel dispatcher object functions
//
// Event Object
//


NTKERNELAPI
VOID
KeInitializeEvent (
    IN PRKEVENT Event,
    IN EVENT_TYPE Type,
    IN BOOLEAN State
    );

NTKERNELAPI
VOID
KeClearEvent (
    IN PRKEVENT Event
    );


NTKERNELAPI
LONG
KeResetEvent (
    IN PRKEVENT Event
    );

NTKERNELAPI
LONG
KeSetEvent (
    IN PRKEVENT Event,
    IN KPRIORITY Increment,
    IN BOOLEAN Wait
    );

//
// Mutex object
//

NTKERNELAPI
VOID
KeInitializeMutex (
    IN PRKMUTEX Mutex,
    IN ULONG Level
    );

#define KeReadStateMutex(Mutex) KeReadStateMutant(Mutex)

NTKERNELAPI
LONG
KeReleaseMutex (
    IN PRKMUTEX Mutex,
    IN BOOLEAN Wait
    );

//
// Semaphore object
//

NTKERNELAPI
VOID
KeInitializeSemaphore (
    IN PRKSEMAPHORE Semaphore,
    IN LONG Count,
    IN LONG Limit
    );

NTKERNELAPI
LONG
KeReadStateSemaphore (
    IN PRKSEMAPHORE Semaphore
    );

NTKERNELAPI
LONG
KeReleaseSemaphore (
    IN PRKSEMAPHORE Semaphore,
    IN KPRIORITY Increment,
    IN LONG Adjustment,
    IN BOOLEAN Wait
    );

NTKERNELAPI                                         
NTSTATUS                                            
KeDelayExecutionThread (                            
    IN KPROCESSOR_MODE WaitMode,                    
    IN BOOLEAN Alertable,                           
    IN PLARGE_INTEGER Interval                      
    );                                              
                                                    
NTKERNELAPI                                         
KPRIORITY                                           
KeQueryPriorityThread (                             
    IN PKTHREAD Thread                              
    );                                              
                                                    
NTKERNELAPI                                         
KPRIORITY                                           
KeSetPriorityThread (                               
    IN PKTHREAD Thread,                             
    IN KPRIORITY Priority                           
    );                                              
                                                    

//
// Timer object
//

NTKERNELAPI
VOID
KeInitializeTimer (
    IN PKTIMER Timer
    );

NTKERNELAPI
VOID
KeInitializeTimerEx (
    IN PKTIMER Timer,
    IN TIMER_TYPE Type
    );

NTKERNELAPI
BOOLEAN
KeCancelTimer (
    IN PKTIMER
    );

NTKERNELAPI
BOOLEAN
KeReadStateTimer (
    PKTIMER Timer
    );

NTKERNELAPI
BOOLEAN
KeSetTimer (
    IN PKTIMER Timer,
    IN LARGE_INTEGER DueTime,
    IN PKDPC Dpc OPTIONAL
    );

NTKERNELAPI
BOOLEAN
KeSetTimerEx (
    IN PKTIMER Timer,
    IN LARGE_INTEGER DueTime,
    IN LONG Period OPTIONAL,
    IN PKDPC Dpc OPTIONAL
    );


#define KeWaitForMutexObject KeWaitForSingleObject

NTKERNELAPI
NTSTATUS
KeWaitForMultipleObjects (
    IN ULONG Count,
    IN PVOID Object[],
    IN WAIT_TYPE WaitType,
    IN KWAIT_REASON WaitReason,
    IN KPROCESSOR_MODE WaitMode,
    IN BOOLEAN Alertable,
    IN PLARGE_INTEGER Timeout OPTIONAL,
    IN PKWAIT_BLOCK WaitBlockArray OPTIONAL
    );

NTKERNELAPI
NTSTATUS
KeWaitForSingleObject (
    IN PVOID Object,
    IN KWAIT_REASON WaitReason,
    IN KPROCESSOR_MODE WaitMode,
    IN BOOLEAN Alertable,
    IN PLARGE_INTEGER Timeout OPTIONAL
    );

//
// spin lock functions
//

NTKERNELAPI
VOID
NTAPI
KeInitializeSpinLock (
    IN PKSPIN_LOCK SpinLock
    );

#if defined(_X86_)

NTKERNELAPI
VOID
FASTCALL
KefAcquireSpinLockAtDpcLevel (
    IN PKSPIN_LOCK SpinLock
    );

NTKERNELAPI
VOID
FASTCALL
KefReleaseSpinLockFromDpcLevel (
    IN PKSPIN_LOCK SpinLock
    );

#define KeAcquireSpinLockAtDpcLevel(a)      KefAcquireSpinLockAtDpcLevel(a)
#define KeReleaseSpinLockFromDpcLevel(a)    KefReleaseSpinLockFromDpcLevel(a)

#else

NTKERNELAPI
VOID
KeAcquireSpinLockAtDpcLevel (
    IN PKSPIN_LOCK SpinLock
    );

NTKERNELAPI
VOID
KeReleaseSpinLockFromDpcLevel (
    IN PKSPIN_LOCK SpinLock
    );

#endif


#if defined(_X86_)

__declspec(dllimport)
KIRQL
FASTCALL
KfAcquireSpinLock (
    IN PKSPIN_LOCK SpinLock
    );

__declspec(dllimport)
VOID
FASTCALL
KfReleaseSpinLock (
    IN PKSPIN_LOCK SpinLock,
    IN KIRQL NewIrql
    );


#define KeAcquireSpinLock(a,b)  *(b) = KfAcquireSpinLock(a)
#define KeReleaseSpinLock(a,b)  KfReleaseSpinLock(a,b)

#else

__declspec(dllimport)
KIRQL
KeAcquireSpinLockRaiseToDpc (
    IN PKSPIN_LOCK SpinLock
    );

#define KeAcquireSpinLock(SpinLock, OldIrql) \
    *(OldIrql) = KeAcquireSpinLockRaiseToDpc(SpinLock)

__declspec(dllimport)
VOID
KeReleaseSpinLock (
    IN PKSPIN_LOCK SpinLock,
    IN KIRQL NewIrql
    );

#endif


#if defined(_X86_)

__declspec(dllimport)
VOID
FASTCALL
KfLowerIrql (
    IN KIRQL NewIrql
    );

__declspec(dllimport)
KIRQL
FASTCALL
KfRaiseIrql (
    IN KIRQL NewIrql
    );


#define KeLowerIrql(a)      KfLowerIrql(a)
#define KeRaiseIrql(a,b)    *(b) = KfRaiseIrql(a)


#elif defined(_ALPHA_)

#define KeLowerIrql(a)      __swpirql(a)
#define KeRaiseIrql(a,b)    *(b) = __swpirql(a)


#elif defined(_IA64_)

VOID
KeLowerIrql (
    IN KIRQL NewIrql
    );

VOID
KeRaiseIrql (
    IN KIRQL NewIrql,
    OUT PKIRQL OldIrql
    );


#endif

//
// Miscellaneous kernel functions
//


NTKERNELAPI
DECLSPEC_NORETURN
VOID
KeBugCheckEx(
    IN ULONG BugCheckCode,
    IN UINT_PTR BugCheckParameter1,
    IN UINT_PTR BugCheckParameter2,
    IN UINT_PTR BugCheckParameter3,
    IN UINT_PTR BugCheckParameter4
    );


NTKERNELAPI
ULONGLONG
KeQueryInterruptTime (
    VOID
    );

NTKERNELAPI
VOID
KeQuerySystemTime (
    OUT PLARGE_INTEGER CurrentTime
    );

NTKERNELAPI
ULONG
KeQueryTimeIncrement (
    VOID
    );

extern volatile KSYSTEM_TIME KeTickCount;           

typedef enum _MEMORY_CACHING_TYPE_ORIG {
    MmFrameBufferCached = 2
} MEMORY_CACHING_TYPE_ORIG;

typedef enum _MEMORY_CACHING_TYPE {
    MmNonCached = FALSE,
    MmCached = TRUE,
    MmWriteCombined = MmFrameBufferCached,
    MmHardwareCoherentCached,
    MmMaximumCacheType
} MEMORY_CACHING_TYPE;

//
// Define external data.
// because of indirection for all drivers external to ntoskrnl these are actually ptrs
//
#if defined(_NTDDK_) || defined(_NTIFS_) || defined(_NTHAL_) || defined(_WDMDDK_)

extern PBOOLEAN KdDebuggerNotPresent;
extern PBOOLEAN KdDebuggerEnabled;

#else

extern BOOLEAN KdDebuggerNotPresent;
extern BOOLEAN KdDebuggerEnabled;

#endif



//
// Pool Allocation routines (in pool.c)
//

typedef enum _POOL_TYPE {
    NonPagedPool,
    PagedPool,
    NonPagedPoolMustSucceed,
    DontUseThisType,
    NonPagedPoolCacheAligned,
    PagedPoolCacheAligned,
    NonPagedPoolCacheAlignedMustS,
    MaxPoolType
    } POOL_TYPE;



NTKERNELAPI
PVOID
ExAllocatePool(
    IN POOL_TYPE PoolType,
    IN ULONG NumberOfBytes
    );

NTKERNELAPI
PVOID
ExAllocatePoolWithQuota(
    IN POOL_TYPE PoolType,
    IN ULONG NumberOfBytes
    );

NTKERNELAPI
PVOID
NTAPI
ExAllocatePoolWithTag(
    IN POOL_TYPE PoolType,
    IN ULONG NumberOfBytes,
    IN ULONG Tag
    );

#ifndef POOL_TAGGING
#define ExAllocatePoolWithTag(a,b,c) ExAllocatePool(a,b)
#endif //POOL_TAGGING

NTKERNELAPI
PVOID
ExAllocatePoolWithQuotaTag(
    IN POOL_TYPE PoolType,
    IN ULONG NumberOfBytes,
    IN ULONG Tag
    );

#ifndef POOL_TAGGING
#define ExAllocatePoolWithQuotaTag(a,b,c) ExAllocatePoolWithQuota(a,b)
#endif //POOL_TAGGING

NTKERNELAPI
VOID
NTAPI
ExFreePool(
    IN PVOID P
    );

//
// Routines to support fast mutexes.
//

typedef struct _FAST_MUTEX {
    LONG Count;
    PKTHREAD Owner;
    ULONG Contention;
    KEVENT Event;
    ULONG OldIrql;
} FAST_MUTEX, *PFAST_MUTEX;

#if DBG
#define ExInitializeFastMutex(_FastMutex)                            \
    (_FastMutex)->Count = 1;                                         \
    (_FastMutex)->Owner = NULL;                                      \
    (_FastMutex)->Contention = 0;                                    \
    KeInitializeEvent(&(_FastMutex)->Event,                          \
                      SynchronizationEvent,                          \
                      FALSE);
#else
#define ExInitializeFastMutex(_FastMutex)                            \
    (_FastMutex)->Count = 1;                                         \
    (_FastMutex)->Contention = 0;                                    \
    KeInitializeEvent(&(_FastMutex)->Event,                          \
                      SynchronizationEvent,                          \
                      FALSE);
#endif // DBG

NTKERNELAPI
VOID
FASTCALL
ExAcquireFastMutexUnsafe (
    IN PFAST_MUTEX FastMutex
    );

NTKERNELAPI
VOID
FASTCALL
ExReleaseFastMutexUnsafe (
    IN PFAST_MUTEX FastMutex
    );

#if defined(_ALPHA_) || defined(_IA64_) || (defined(_X86_) && defined(_NTHAL_))

NTKERNELAPI
VOID
FASTCALL
ExAcquireFastMutex (
    IN PFAST_MUTEX FastMutex
    );

NTKERNELAPI
VOID
FASTCALL
ExReleaseFastMutex (
    IN PFAST_MUTEX FastMutex
    );


#elif defined(_X86_) && !defined(_NTHAL_)

__declspec(dllimport)
VOID
FASTCALL
ExAcquireFastMutex (
    IN PFAST_MUTEX FastMutex
    );

__declspec(dllimport)
VOID
FASTCALL
ExReleaseFastMutex (
    IN PFAST_MUTEX FastMutex
    );


#else

#error "Target architecture not defined"

#endif

//

NTKERNELAPI
VOID
FASTCALL
ExInterlockedAddLargeStatistic (
    IN PLARGE_INTEGER Addend,
    IN ULONG Increment
    );



NTKERNELAPI
LARGE_INTEGER
ExInterlockedAddLargeInteger (
    IN PLARGE_INTEGER Addend,
    IN LARGE_INTEGER Increment,
    IN PKSPIN_LOCK Lock
    );


NTKERNELAPI
ULONG
FASTCALL
ExInterlockedAddUlong (
    IN PULONG Addend,
    IN ULONG Increment,
    IN PKSPIN_LOCK Lock
    );


#if defined(_ALPHA_) || defined(_MIPS_) || defined(_IA64_)

#define ExInterlockedCompareExchange64(Destination, Exchange, Comperand, Lock) \
    InterlockedCompareExchange64(Destination, Exchange, Comperand)

#else

NTKERNELAPI
ULONGLONG
FASTCALL
ExInterlockedCompareExchange64 (
    IN PULONGLONG Destination,
    IN PULONGLONG Exchange,
    IN PULONGLONG Comperand,
    IN PKSPIN_LOCK Lock
    );

#endif

NTKERNELAPI
PLIST_ENTRY
FASTCALL
ExInterlockedInsertHeadList (
    IN PLIST_ENTRY ListHead,
    IN PLIST_ENTRY ListEntry,
    IN PKSPIN_LOCK Lock
    );

NTKERNELAPI
PLIST_ENTRY
FASTCALL
ExInterlockedInsertTailList (
    IN PLIST_ENTRY ListHead,
    IN PLIST_ENTRY ListEntry,
    IN PKSPIN_LOCK Lock
    );

NTKERNELAPI
PLIST_ENTRY
FASTCALL
ExInterlockedRemoveHeadList (
    IN PLIST_ENTRY ListHead,
    IN PKSPIN_LOCK Lock
    );

NTKERNELAPI
PSINGLE_LIST_ENTRY
FASTCALL
ExInterlockedPopEntryList (
    IN PSINGLE_LIST_ENTRY ListHead,
    IN PKSPIN_LOCK Lock
    );

NTKERNELAPI
PSINGLE_LIST_ENTRY
FASTCALL
ExInterlockedPushEntryList (
    IN PSINGLE_LIST_ENTRY ListHead,
    IN PSINGLE_LIST_ENTRY ListEntry,
    IN PKSPIN_LOCK Lock
    );



//
// Define interlocked sequenced listhead functions.
//
// A sequenced interlocked list is a singly linked list with a header that
// contains the current depth and a sequence number. Each time an entry is
// inserted or removed from the list the depth is updated and the sequence
// number is incremented. This enables MIPS, Alpha, and Pentium and later
// machines to insert and remove from the list without the use of spinlocks.
// The PowerPc, however, must use a spinlock to synchronize access to the
// list.
//
// N.B. A spinlock must be specified with SLIST operations. However, it may
//      not actually be used.
//

/*++

VOID
ExInitializeSListHead (
    IN PSLIST_HEADER SListHead
    )

Routine Description:

    This function initializes a sequenced singly linked listhead.

Arguments:

    SListHead - Supplies a pointer to a sequenced singly linked listhead.

Return Value:

    None.

--*/

#define ExInitializeSListHead(_listhead_) \
    (_listhead_)->Next.Next = NULL;       \
    (_listhead_)->Depth = 0;              \
    (_listhead_)->Sequence = 0

/*++

USHORT
ExQueryDepthSList (
    IN PSLIST_HEADERT SListHead
    )

Routine Description:

    This function queries the current number of entries contained in a
    sequenced single linked list.

Arguments:

    SListHead - Supplies a pointer to the sequenced listhead which is
        be queried.

Return Value:

    The current number of entries in the sequenced singly linked list is
    returned as the function value.

--*/

#define ExQueryDepthSList(_listhead_) (_listhead_)->Depth

#if defined(_MIPS_) || defined(_ALPHA_)

#define ExInterlockedPopEntrySList(Head, Lock) \
    ExpInterlockedPopEntrySList(Head)

#define ExInterlockedPushEntrySList(Head, Entry, Lock) \
    ExpInterlockedPushEntrySList(Head, Entry)

#define ExQueryDepthSList(_listhead_) (_listhead_)->Depth

NTKERNELAPI
PSINGLE_LIST_ENTRY
ExpInterlockedPopEntrySList (
    IN PSLIST_HEADER ListHead
    );

NTKERNELAPI
PSINGLE_LIST_ENTRY
ExpInterlockedPushEntrySList (
    IN PSLIST_HEADER ListHead,
    IN PSINGLE_LIST_ENTRY ListEntry
    );

#else

NTKERNELAPI
PSINGLE_LIST_ENTRY
FASTCALL
ExInterlockedPopEntrySList (
    IN PSLIST_HEADER ListHead,
    IN PKSPIN_LOCK Lock
    );

NTKERNELAPI
PSINGLE_LIST_ENTRY
FASTCALL
ExInterlockedPushEntrySList (
    IN PSLIST_HEADER ListHead,
    IN PSINGLE_LIST_ENTRY ListEntry,
    IN PKSPIN_LOCK Lock
    );

#endif


typedef
PVOID
(*PALLOCATE_FUNCTION) (
    IN POOL_TYPE PoolType,
    IN ULONG NumberOfBytes,
    IN ULONG Tag
    );

typedef
VOID
(*PFREE_FUNCTION) (
    IN PVOID Buffer
    );

typedef struct _GENERAL_LOOKASIDE {
    SLIST_HEADER ListHead;
    USHORT Depth;
    USHORT MaximumDepth;
    ULONG TotalAllocates;
    ULONG AllocateMisses;
    ULONG TotalFrees;
    ULONG FreeMisses;
    POOL_TYPE Type;
    ULONG Tag;
    ULONG Size;
    PALLOCATE_FUNCTION Allocate;
    PFREE_FUNCTION Free;
    LIST_ENTRY ListEntry;
    ULONG LastTotalAllocates;
    ULONG LastAllocateMisses;
    ULONG Future[2];
} GENERAL_LOOKASIDE, *PGENERAL_LOOKASIDE;

typedef struct _NPAGED_LOOKASIDE_LIST {
    GENERAL_LOOKASIDE L;
    KSPIN_LOCK Lock;
} NPAGED_LOOKASIDE_LIST, *PNPAGED_LOOKASIDE_LIST;


NTKERNELAPI
VOID
ExInitializeNPagedLookasideList (
    IN PNPAGED_LOOKASIDE_LIST Lookaside,
    IN PALLOCATE_FUNCTION Allocate,
    IN PFREE_FUNCTION Free,
    IN ULONG Flags,
    IN ULONG Size,
    IN ULONG Tag,
    IN USHORT Depth
    );


NTKERNELAPI
VOID
ExDeleteNPagedLookasideList (
    IN PNPAGED_LOOKASIDE_LIST Lookaside
    );

__inline
PVOID
ExAllocateFromNPagedLookasideList(
    IN PNPAGED_LOOKASIDE_LIST Lookaside
    )

/*++

Routine Description:

    This function removes (pops) the first entry from the specified
    nonpaged lookaside list.

Arguments:

    Lookaside - Supplies a pointer to a nonpaged lookaside list structure.

Return Value:

    If an entry is removed from the specified lookaside list, then the
    address of the entry is returned as the function value. Otherwise,
    NULL is returned.

--*/

{

    PVOID Entry;

    Lookaside->L.TotalAllocates += 1;
    Entry = ExInterlockedPopEntrySList(&Lookaside->L.ListHead, &Lookaside->Lock);
    if (Entry == NULL) {
        Lookaside->L.AllocateMisses += 1;
        Entry = (Lookaside->L.Allocate)(Lookaside->L.Type,
                                        Lookaside->L.Size,
                                        Lookaside->L.Tag);
    }

    return Entry;
}

__inline
VOID
ExFreeToNPagedLookasideList(
    IN PNPAGED_LOOKASIDE_LIST Lookaside,
    IN PVOID Entry
    )

/*++

Routine Description:

    This function inserts (pushes) the specified entry into the specified
    nonpaged lookaside list.

Arguments:

    Lookaside - Supplies a pointer to a nonpaged lookaside list structure.

    Entry - Supples a pointer to the entry that is inserted in the
        lookaside list.

Return Value:

    None.

--*/

{

    Lookaside->L.TotalFrees += 1;
    if (ExQueryDepthSList(&Lookaside->L.ListHead) >= Lookaside->L.Depth) {
        Lookaside->L.FreeMisses += 1;
        (Lookaside->L.Free)(Entry);

    } else {
        ExInterlockedPushEntrySList(&Lookaside->L.ListHead,
                                    (PSINGLE_LIST_ENTRY)Entry,
                                    &Lookaside->Lock);
    }

    return;
}



typedef struct _PAGED_LOOKASIDE_LIST {
    GENERAL_LOOKASIDE L;
    FAST_MUTEX Lock;
} PAGED_LOOKASIDE_LIST, *PPAGED_LOOKASIDE_LIST;

NTKERNELAPI
VOID
ExInitializePagedLookasideList (
    IN PPAGED_LOOKASIDE_LIST Lookaside,
    IN PALLOCATE_FUNCTION Allocate,
    IN PFREE_FUNCTION Free,
    IN ULONG Flags,
    IN ULONG Size,
    IN ULONG Tag,
    IN USHORT Depth
    );

NTKERNELAPI
VOID
ExDeletePagedLookasideList (
    IN PPAGED_LOOKASIDE_LIST Lookaside
    );

#if defined(_X86_) || defined(_IA64_)

NTKERNELAPI
PVOID
ExAllocateFromPagedLookasideList(
    IN PPAGED_LOOKASIDE_LIST Lookaside
    );

NTKERNELAPI
VOID
ExFreeToPagedLookasideList(
    IN PPAGED_LOOKASIDE_LIST Lookaside,
    IN PVOID Entry
    );

#else

__inline
PVOID
ExAllocateFromPagedLookasideList(
    IN PPAGED_LOOKASIDE_LIST Lookaside
    )

/*++

Routine Description:

    This function removes (pops) the first entry from the specified
    paged lookaside list.

Arguments:

    Lookaside - Supplies a pointer to a paged lookaside list structure.

Return Value:

    If an entry is removed from the specified lookaside list, then the
    address of the entry is returned as the function value. Otherwise,
    NULL is returned.

--*/

{

    PVOID Entry;

    Lookaside->L.TotalAllocates += 1;
    Entry = ExInterlockedPopEntrySList(&Lookaside->L.ListHead, NULL);
    if (Entry == NULL) {
        Lookaside->L.AllocateMisses += 1;
        Entry = (Lookaside->L.Allocate)(Lookaside->L.Type,
                                        Lookaside->L.Size,
                                        Lookaside->L.Tag);
    }

    return Entry;
}

__inline
VOID
ExFreeToPagedLookasideList(
    IN PPAGED_LOOKASIDE_LIST Lookaside,
    IN PVOID Entry
    )

/*++

Routine Description:

    This function inserts (pushes) the specified entry into the specified
    paged lookaside list.

Arguments:

    Lookaside - Supplies a pointer to a nonpaged lookaside list structure.

    Entry - Supples a pointer to the entry that is inserted in the
        lookaside list.

Return Value:

    None.

--*/

{

    Lookaside->L.TotalFrees += 1;
    if (ExQueryDepthSList(&Lookaside->L.ListHead) >= Lookaside->L.Depth) {
        Lookaside->L.FreeMisses += 1;
        (Lookaside->L.Free)(Entry);

    } else {
        ExInterlockedPushEntrySList(&Lookaside->L.ListHead,
                                    (PSINGLE_LIST_ENTRY)Entry,
                                    NULL);
    }

    return;
}

#endif


NTKERNELAPI
VOID
NTAPI
ProbeForRead(
    IN CONST VOID *Address,
    IN ULONG Length,
    IN ULONG Alignment
    );

//
// Common probe for write functions.
//

NTKERNELAPI
VOID
NTAPI
ProbeForWrite (
    IN PVOID Address,
    IN ULONG Length,
    IN ULONG Alignment
    );

//
// Worker Thread
//

typedef enum _WORK_QUEUE_TYPE {
    CriticalWorkQueue,
    DelayedWorkQueue,
    HyperCriticalWorkQueue,
    MaximumWorkQueue
} WORK_QUEUE_TYPE;

typedef
VOID
(*PWORKER_THREAD_ROUTINE)(
    IN PVOID Parameter
    );

typedef struct _WORK_QUEUE_ITEM {
    LIST_ENTRY List;
    PWORKER_THREAD_ROUTINE WorkerRoutine;
    PVOID Parameter;
} WORK_QUEUE_ITEM, *PWORK_QUEUE_ITEM;


#define ExInitializeWorkItem(Item, Routine, Context) \
    (Item)->WorkerRoutine = (Routine);               \
    (Item)->Parameter = (Context);                   \
    (Item)->List.Flink = NULL;

NTKERNELAPI
VOID
ExQueueWorkItem(
    IN PWORK_QUEUE_ITEM WorkItem,
    IN WORK_QUEUE_TYPE QueueType
    );

//
// Get previous mode
//

NTKERNELAPI
KPROCESSOR_MODE
ExGetPreviousMode(
    VOID
    );
//
// Raise status from kernel mode.
//

NTKERNELAPI
VOID
NTAPI
ExRaiseStatus (
    IN NTSTATUS Status
    );

//
// Set timer resolution.
//

NTKERNELAPI
ULONG
ExSetTimerResolution (
    IN ULONG DesiredTime,
    IN BOOLEAN SetResolution
    );


//
// Define the type for Callback function.
//

typedef struct _CALLBACK_OBJECT *PCALLBACK_OBJECT;

typedef VOID (*PCALLBACK_FUNCTION ) (
    IN PVOID CallbackContext,
    IN PVOID Argument1,
    IN PVOID Argument2
    );


NTKERNELAPI
NTSTATUS
ExCreateCallback (
    OUT PCALLBACK_OBJECT *CallbackObject,
    IN POBJECT_ATTRIBUTES ObjectAttributes,
    IN BOOLEAN Create,
    IN BOOLEAN AllowMultipleCallbacks
    );

NTKERNELAPI
PVOID
ExRegisterCallback (
    IN PCALLBACK_OBJECT CallbackObject,
    IN PCALLBACK_FUNCTION CallbackFunction,
    IN PVOID CallbackContext
    );

NTKERNELAPI
VOID
ExUnregisterCallback (
    IN PVOID CallbackRegistration
    );

NTKERNELAPI
VOID
ExNotifyCallback (
    IN PVOID CallbackObject,
    IN PVOID Argument1,
    IN PVOID Argument2
    );

//
// Priority increment definitions.  The comment for each definition gives
// the names of the system services that use the definition when satisfying
// a wait.
//

//
// Priority increment used when satisfying a wait on an executive event
// (NtPulseEvent and NtSetEvent)
//

#define EVENT_INCREMENT                 1

//
// Priority increment when no I/O has been done.  This is used by device
// and file system drivers when completing an IRP (IoCompleteRequest).
//

#define IO_NO_INCREMENT                 0

//
// Priority increment for completing CD-ROM I/O.  This is used by CD-ROM device
// and file system drivers when completing an IRP (IoCompleteRequest)
//

#define IO_CD_ROM_INCREMENT             1

//
// Priority increment for completing disk I/O.  This is used by disk device
// and file system drivers when completing an IRP (IoCompleteRequest)
//

#define IO_DISK_INCREMENT               1


//
// Priority increment for completing keyboard I/O.  This is used by keyboard
// device drivers when completing an IRP (IoCompleteRequest)
//

#define IO_KEYBOARD_INCREMENT           6


//
// Priority increment for completing mailslot I/O.  This is used by the mail-
// slot file system driver when completing an IRP (IoCompleteRequest).
//

#define IO_MAILSLOT_INCREMENT           2


//
// Priority increment for completing mouse I/O.  This is used by mouse device
// drivers when completing an IRP (IoCompleteRequest)
//

#define IO_MOUSE_INCREMENT              6


//
// Priority increment for completing named pipe I/O.  This is used by the
// named pipe file system driver when completing an IRP (IoCompleteRequest).
//

#define IO_NAMED_PIPE_INCREMENT         2

//
// Priority increment for completing network I/O.  This is used by network
// device and network file system drivers when completing an IRP
// (IoCompleteRequest).
//

#define IO_NETWORK_INCREMENT            2


//
// Priority increment for completing parallel I/O.  This is used by parallel
// device drivers when completing an IRP (IoCompleteRequest)
//

#define IO_PARALLEL_INCREMENT           1

//
// Priority increment for completing serial I/O.  This is used by serial device
// drivers when completing an IRP (IoCompleteRequest)
//

#define IO_SERIAL_INCREMENT             2

//
// Priority increment for completing sound I/O.  This is used by sound device
// drivers when completing an IRP (IoCompleteRequest)
//

#define IO_SOUND_INCREMENT              8

//
// Priority increment for completing video I/O.  This is used by video device
// drivers when completing an IRP (IoCompleteRequest)
//

#define IO_VIDEO_INCREMENT              1

//
// Priority increment used when satisfying a wait on an executive semaphore
// (NtReleaseSemaphore)
//

#define SEMAPHORE_INCREMENT             1

//
//  Indicates the system may do I/O to physical addresses above 4 GB.
//

extern PBOOLEAN Mm64BitPhysicalAddresses;


//
// Define maximum disk transfer size to be used by MM and Cache Manager,
// so that packet-oriented disk drivers can optimize their packet allocation
// to this size.
//

#define MM_MAXIMUM_DISK_IO_SIZE          (0x10000)

//++
//
// ULONG
// ROUND_TO_PAGES (
//     IN ULONG Size
//     )
//
// Routine Description:
//
//     The ROUND_TO_PAGES macro takes a size in bytes and rounds it up to a
//     multiple of the page size.
//
//     NOTE: This macro fails for values 0xFFFFFFFF - (PAGE_SIZE - 1).
//
// Arguments:
//
//     Size - Size in bytes to round up to a page multiple.
//
// Return Value:
//
//     Returns the size rounded up to a multiple of the page size.
//
//--

#define ROUND_TO_PAGES(Size)  (((ULONG)(Size) + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1))

//++
//
// ULONG
// BYTES_TO_PAGES (
//     IN ULONG Size
//     )
//
// Routine Description:
//
//     The BYTES_TO_PAGES macro takes the size in bytes and calculates the
//     number of pages required to contain the bytes.
//
// Arguments:
//
//     Size - Size in bytes.
//
// Return Value:
//
//     Returns the number of pages required to contain the specified size.
//
//--

#define BYTES_TO_PAGES(Size)  (((ULONG)(Size) >> PAGE_SHIFT) + \
                               (((ULONG)(Size) & (PAGE_SIZE - 1)) != 0))

//++
//
// ULONG
// BYTE_OFFSET (
//     IN PVOID Va
//     )
//
// Routine Description:
//
//     The BYTE_OFFSET macro takes a virtual address and returns the byte offset
//     of that address within the page.
//
// Arguments:
//
//     Va - Virtual address.
//
// Return Value:
//
//     Returns the byte offset portion of the virtual address.
//
//--

#define BYTE_OFFSET(Va) ((ULONG)(Va) & (PAGE_SIZE - 1))

//++
//
// PVOID
// PAGE_ALIGN (
//     IN PVOID Va
//     )
//
// Routine Description:
//
//     The PAGE_ALIGN macro takes a virtual address and returns a page-aligned
//     virtual address for that page.
//
// Arguments:
//
//     Va - Virtual address.
//
// Return Value:
//
//     Returns the page aligned virtual address.
//
//--

#define PAGE_ALIGN(Va) ((PVOID)((UINT_PTR)(Va) & ~(PAGE_SIZE - 1)))

//++
//
// ULONG
// ADDRESS_AND_SIZE_TO_SPAN_PAGES (
//     IN PVOID Va,
//     IN ULONG Size
//     )
//
// Routine Description:
//
//     The ADDRESS_AND_SIZE_TO_SPAN_PAGES macro takes a virtual address and
//     size and returns the number of pages spanned by the size.
//
// Arguments:
//
//     Va - Virtual address.
//
//     Size - Size in bytes.
//
// Return Value:
//
//     Returns the number of pages spanned by the size.
//
//--

#define ADDRESS_AND_SIZE_TO_SPAN_PAGES(Va,Size) \
   ((((ULONG)((ULONG)(Size) - 1L) >> PAGE_SHIFT) + \
   (((((ULONG)(Size-1)&(PAGE_SIZE-1)) + ((UINT_PTR)Va & (PAGE_SIZE -1)))) >> PAGE_SHIFT)) + 1L)

#define COMPUTE_PAGES_SPANNED(Va, Size) \
    ((((UINT_PTR)Va & (PAGE_SIZE -1)) + (Size) + (PAGE_SIZE - 1)) >> PAGE_SHIFT)

//++
//
// PVOID
// MmGetMdlVirtualAddress (
//     IN PMDL Mdl
//     )
//
// Routine Description:
//
//     The MmGetMdlVirtualAddress returns the virtual address of the buffer
//     described by the Mdl.
//
// Arguments:
//
//     Mdl - Pointer to an MDL.
//
// Return Value:
//
//     Returns the virtual address of the buffer described by the Mdl
//
//--

#define MmGetMdlVirtualAddress(Mdl)                                     \
    ((PVOID) ((PCHAR) (((Mdl)->MdlFlags & MDL_64_BIT_VA) ?              \
    (PVOID) ((UINT_PTR) (Mdl)->StartVa << PAGE_SHIFT) : (Mdl)->StartVa) +  \
    (Mdl)->ByteOffset))

//++
//
// ULONG
// MmGetMdlByteCount (
//     IN PMDL Mdl
//     )
//
// Routine Description:
//
//     The MmGetMdlByteCount returns the length in bytes of the buffer
//     described by the Mdl.
//
// Arguments:
//
//     Mdl - Pointer to an MDL.
//
// Return Value:
//
//     Returns the byte count of the buffer described by the Mdl
//
//--

#define MmGetMdlByteCount(Mdl)  ((Mdl)->ByteCount)

//++
//
// ULONG
// MmGetMdlByteOffset (
//     IN PMDL Mdl
//     )
//
// Routine Description:
//
//     The MmGetMdlByteOffset returns the byte offset within the page
//     of the buffer described by the Mdl.
//
// Arguments:
//
//     Mdl - Pointer to an MDL.
//
// Return Value:
//
//     Returns the byte offset within the page of the buffer described by the Mdl
//
//--

#define MmGetMdlByteOffset(Mdl)  ((Mdl)->ByteOffset)

//++
//
// PVOID
// MmGetMdlStartVa (
//     IN PMDL Mdl
//     )
//
// Routine Description:
//
//     The MmGetMdlBaseVa returns the virtual address of the buffer
//     described by the Mdl rounded down to the nearest page.
//
// Arguments:
//
//     Mdl - Pointer to an MDL.
//
// Return Value:
//
//     Returns the returns the starting virtual address of the MDL.
//
//
//--

#define MmGetMdlBaseVa(Mdl)  (((Mdl)->MdlFlags & MDL_64_BIT_VA) ?       \
    (PVOID) (((UINT_PTR) (Mdl)->StartVa) << PAGE_SHIFT) : (Mdl)->StartVa)

typedef enum _MM_SYSTEM_SIZE {
    MmSmallSystem,
    MmMediumSystem,
    MmLargeSystem
} MM_SYSTEMSIZE;

NTKERNELAPI
MM_SYSTEMSIZE
MmQuerySystemSize(
    VOID
    );


typedef enum _LOCK_OPERATION {
    IoReadAccess,
    IoWriteAccess,
    IoModifyAccess
} LOCK_OPERATION;


NTKERNELAPI
VOID
MmProbeAndLockProcessPages (
    IN OUT PMDL MemoryDescriptorList,
    IN PEPROCESS Process,
    IN KPROCESSOR_MODE AccessMode,
    IN LOCK_OPERATION Operation
    );



//
// I/O support routines.
//

NTKERNELAPI
VOID
MmProbeAndLockPages (
    IN OUT PMDL MemoryDescriptorList,
    IN KPROCESSOR_MODE AccessMode,
    IN LOCK_OPERATION Operation
    );


NTKERNELAPI
VOID
MmUnlockPages (
    IN PMDL MemoryDescriptorList
    );

NTKERNELAPI
VOID
MmBuildMdlForNonPagedPool (
    IN OUT PMDL MemoryDescriptorList
    );

NTKERNELAPI
PVOID
MmMapLockedPages (
    IN PMDL MemoryDescriptorList,
    IN KPROCESSOR_MODE AccessMode
    );

NTKERNELAPI
VOID
MmUnmapLockedPages (
    IN PVOID BaseAddress,
    IN PMDL MemoryDescriptorList
    );


NTKERNELAPI
PVOID
MmMapIoSpace (
    IN PHYSICAL_ADDRESS PhysicalAddress,
    IN ULONG NumberOfBytes,
    IN MEMORY_CACHING_TYPE CacheType
    );

NTKERNELAPI
VOID
MmUnmapIoSpace (
    IN PVOID BaseAddress,
    IN ULONG NumberOfBytes
    );


NTKERNELAPI
ULONG
MmSizeOfMdl(
    IN PVOID Base,
    IN ULONG Length
    );

NTKERNELAPI
PMDL
MmCreateMdl(
    IN PMDL MemoryDescriptorList OPTIONAL,
    IN PVOID Base,
    IN ULONG Length
    );

NTKERNELAPI
PVOID
MmLockPagableDataSection(
    IN PVOID AddressWithinSection
    );

NTKERNELAPI
VOID
MmResetDriverPaging (
    IN PVOID AddressWithinSection
    );


NTKERNELAPI
PVOID
MmPageEntireDriver (
    IN PVOID AddressWithinSection
    );

NTKERNELAPI
VOID
MmUnlockPagableImageSection(
    IN PVOID ImageSectionHandle
    );


//++
//
// VOID
// MmInitializeMdl (
//     IN PMDL MemoryDescriptorList,
//     IN PVOID BaseVa,
//     IN ULONG Length
//     )
//
// Routine Description:
//
//     This routine initializes the header of a Memory Descriptor List (MDL).
//
// Arguments:
//
//     MemoryDescriptorList - Pointer to the MDL to initialize.
//
//     BaseVa - Base virtual address mapped by the MDL.
//
//     Length - Length, in bytes, of the buffer mapped by the MDL.
//
// Return Value:
//
//     None.
//
//--

#define MmInitializeMdl(MemoryDescriptorList, BaseVa, Length) { \
    (MemoryDescriptorList)->Next = (PMDL) NULL; \
    (MemoryDescriptorList)->Size = (CSHORT)(sizeof(MDL) +  \
            (sizeof(ULONG) * ADDRESS_AND_SIZE_TO_SPAN_PAGES((BaseVa), (Length)))); \
    (MemoryDescriptorList)->MdlFlags = 0; \
    (MemoryDescriptorList)->StartVa = (PVOID) PAGE_ALIGN((BaseVa)); \
    (MemoryDescriptorList)->ByteOffset = BYTE_OFFSET((BaseVa)); \
    (MemoryDescriptorList)->ByteCount = (Length); \
    }


//++
//
// PVOID
// MmGetSystemAddressForMdl (
//     IN PMDL MDL
//     )
//
// Routine Description:
//
//     This routine returns the mapped address of an MDL, if the
//     Mdl is not already mapped or a system address, it is mapped.
//
// Arguments:
//
//     MemoryDescriptorList - Pointer to the MDL to map.
//
// Return Value:
//
//     Returns the base address where the pages are mapped.  The base address
//     has the same offset as the virtual address in the MDL.
//
//--

//#define MmGetSystemAddressForMdl(MDL)
//     (((MDL)->MdlFlags & (MDL_MAPPED_TO_SYSTEM_VA)) ?
//                             ((MDL)->MappedSystemVa) :
//                ((((MDL)->MdlFlags & (MDL_SOURCE_IS_NONPAGED_POOL)) ?
//                      ((PVOID)((ULONG)(MDL)->StartVa | (MDL)->ByteOffset)) :
//                            (MmMapLockedPages((MDL),KernelMode)))))

#define MmGetSystemAddressForMdl(MDL)                                  \
     (((MDL)->MdlFlags & (MDL_MAPPED_TO_SYSTEM_VA |                    \
                        MDL_SOURCE_IS_NONPAGED_POOL)) ?                \
                             ((MDL)->MappedSystemVa) :                 \
                             (MmMapLockedPages((MDL),KernelMode)))

//++
//
// VOID
// MmPrepareMdlForReuse (
//     IN PMDL MDL
//     )
//
// Routine Description:
//
//     This routine will take all of the steps necessary to allow an MDL to be
//     re-used.
//
// Arguments:
//
//     MemoryDescriptorList - Pointer to the MDL that will be re-used.
//
// Return Value:
//
//     None.
//
//--

#define MmPrepareMdlForReuse(MDL)                                       \
    if (((MDL)->MdlFlags & MDL_PARTIAL_HAS_BEEN_MAPPED) != 0) {         \
        ASSERT(((MDL)->MdlFlags & MDL_PARTIAL) != 0);                   \
        MmUnmapLockedPages( (MDL)->MappedSystemVa, (MDL) );             \
    } else if (((MDL)->MdlFlags & MDL_PARTIAL) == 0) {                  \
        ASSERT(((MDL)->MdlFlags & MDL_MAPPED_TO_SYSTEM_VA) == 0);       \
    }

typedef NTSTATUS (*PMM_DLL_INITIALIZE)(
    IN PUNICODE_STRING RegistryPath
    );

typedef NTSTATUS (*PMM_DLL_UNLOAD)(
    VOID
    );

//
// System Thread and Process Creation and Termination
//

NTKERNELAPI
NTSTATUS
PsCreateSystemThread(
    OUT PHANDLE ThreadHandle,
    IN ULONG DesiredAccess,
    IN POBJECT_ATTRIBUTES ObjectAttributes OPTIONAL,
    IN HANDLE ProcessHandle OPTIONAL,
    OUT PCLIENT_ID ClientId OPTIONAL,
    IN PKSTART_ROUTINE StartRoutine,
    IN PVOID StartContext
    );

NTKERNELAPI
NTSTATUS
PsTerminateSystemThread(
    IN NTSTATUS ExitStatus
    );

//
// Define I/O system data structure type codes.  Each major data structure in
// the I/O system has a type code  The type field in each structure is at the
// same offset.  The following values can be used to determine which type of
// data structure a pointer refers to.
//

#define IO_TYPE_ADAPTER                 0x00000001
#define IO_TYPE_CONTROLLER              0x00000002
#define IO_TYPE_DEVICE                  0x00000003
#define IO_TYPE_DRIVER                  0x00000004
#define IO_TYPE_FILE                    0x00000005
#define IO_TYPE_IRP                     0x00000006
#define IO_TYPE_MASTER_ADAPTER          0x00000007
#define IO_TYPE_OPEN_PACKET             0x00000008
#define IO_TYPE_TIMER                   0x00000009
#define IO_TYPE_VPB                     0x0000000a
#define IO_TYPE_ERROR_LOG               0x0000000b
#define IO_TYPE_ERROR_MESSAGE           0x0000000c
#define IO_TYPE_DEVICE_OBJECT_EXTENSION 0x0000000d


//
// Define the major function codes for IRPs.
//


#define IRP_MJ_CREATE                   0x00
#define IRP_MJ_CREATE_NAMED_PIPE        0x01
#define IRP_MJ_CLOSE                    0x02
#define IRP_MJ_READ                     0x03
#define IRP_MJ_WRITE                    0x04
#define IRP_MJ_QUERY_INFORMATION        0x05
#define IRP_MJ_SET_INFORMATION          0x06
#define IRP_MJ_QUERY_EA                 0x07
#define IRP_MJ_SET_EA                   0x08
#define IRP_MJ_FLUSH_BUFFERS            0x09
#define IRP_MJ_QUERY_VOLUME_INFORMATION 0x0a
#define IRP_MJ_SET_VOLUME_INFORMATION   0x0b
#define IRP_MJ_DIRECTORY_CONTROL        0x0c
#define IRP_MJ_FILE_SYSTEM_CONTROL      0x0d
#define IRP_MJ_DEVICE_CONTROL           0x0e
#define IRP_MJ_INTERNAL_DEVICE_CONTROL  0x0f
#define IRP_MJ_SHUTDOWN                 0x10
#define IRP_MJ_LOCK_CONTROL             0x11
#define IRP_MJ_CLEANUP                  0x12
#define IRP_MJ_CREATE_MAILSLOT          0x13
#define IRP_MJ_QUERY_SECURITY           0x14
#define IRP_MJ_SET_SECURITY             0x15
#define IRP_MJ_POWER                    0x16
#define IRP_MJ_SYSTEM_CONTROL           0x17
#define IRP_MJ_DEVICE_CHANGE            0x18
#define IRP_MJ_QUERY_QUOTA              0x19
#define IRP_MJ_SET_QUOTA                0x1a
#define IRP_MJ_PNP                      0x1b
#define IRP_MJ_PNP_POWER                IRP_MJ_PNP      // Obsolete....
#define IRP_MJ_MAXIMUM_FUNCTION         0x1b

//
// Make the Scsi major code the same as internal device control.
//

#define IRP_MJ_SCSI                     IRP_MJ_INTERNAL_DEVICE_CONTROL

//
// Define the minor function codes for IRPs.  The lower 128 codes, from 0x00 to
// 0x7f are reserved to Microsoft.  The upper 128 codes, from 0x80 to 0xff, are
// reserved to customers of Microsoft.
//

//
// Device Control Request minor function codes for SCSI support. Note that
// user requests are assumed to be zero.
//

#define IRP_MN_SCSI_CLASS               0x01

//
// PNP minor function codes.
//

#define IRP_MN_START_DEVICE                 0x00
#define IRP_MN_QUERY_REMOVE_DEVICE          0x01
#define IRP_MN_REMOVE_DEVICE                0x02
#define IRP_MN_CANCEL_REMOVE_DEVICE         0x03
#define IRP_MN_STOP_DEVICE                  0x04
#define IRP_MN_QUERY_STOP_DEVICE            0x05
#define IRP_MN_CANCEL_STOP_DEVICE           0x06

#define IRP_MN_QUERY_DEVICE_RELATIONS       0x07
#define IRP_MN_QUERY_INTERFACE              0x08
#define IRP_MN_QUERY_CAPABILITIES           0x09
#define IRP_MN_QUERY_RESOURCES              0x0A
#define IRP_MN_QUERY_RESOURCE_REQUIREMENTS  0x0B
#define IRP_MN_QUERY_DEVICE_TEXT            0x0C
#define IRP_MN_FILTER_RESOURCE_REQUIREMENTS 0x0D

#define IRP_MN_READ_CONFIG                  0x0F
#define IRP_MN_WRITE_CONFIG                 0x10
#define IRP_MN_EJECT                        0x11
#define IRP_MN_SET_LOCK                     0x12
#define IRP_MN_QUERY_ID                     0x13
#define IRP_MN_QUERY_PNP_DEVICE_STATE       0x14
#define IRP_MN_QUERY_BUS_INFORMATION        0x15
#define IRP_MN_DEVICE_USAGE_NOTIFICATION    0x16
#define IRP_MN_SURPRISE_REMOVAL             0x17

//
// POWER minor function codes
//
#define IRP_MN_WAIT_WAKE                    0x00
#define IRP_MN_POWER_SEQUENCE               0x01
#define IRP_MN_SET_POWER                    0x02
#define IRP_MN_QUERY_POWER                  0x03


//
// WMI minor function codes under IRP_MJ_SYSTEM_CONTROL
//

#define IRP_MN_QUERY_ALL_DATA               0x00
#define IRP_MN_QUERY_SINGLE_INSTANCE        0x01
#define IRP_MN_CHANGE_SINGLE_INSTANCE       0x02
#define IRP_MN_CHANGE_SINGLE_ITEM           0x03
#define IRP_MN_ENABLE_EVENTS                0x04
#define IRP_MN_DISABLE_EVENTS               0x05
#define IRP_MN_ENABLE_COLLECTION            0x06
#define IRP_MN_DISABLE_COLLECTION           0x07
#define IRP_MN_REGINFO                      0x08
#define IRP_MN_EXECUTE_METHOD               0x09



//
// Define option flags for IoCreateFile.  Note that these values must be
// exactly the same as the SL_... flags for a create function.  Note also
// that there are flags that may be passed to IoCreateFile that are not
// placed in the stack location for the create IRP.  These flags start in
// the next byte.
//

#define IO_FORCE_ACCESS_CHECK           0x0001
#define IO_OPEN_PAGING_FILE             0x0002
#define IO_OPEN_TARGET_DIRECTORY        0x0004
#define IO_NO_PARAMETER_CHECKING        0x0100

//
// Define Information fields for whether or not a REPARSE or a REMOUNT has
// occurred in the file system.
//

#define IO_REPARSE                      0x0
#define IO_REMOUNT                      0x1

//
// Define the objects that can be created by IoCreateFile.
//

typedef enum _CREATE_FILE_TYPE {
    CreateFileTypeNone,
    CreateFileTypeNamedPipe,
    CreateFileTypeMailslot
} CREATE_FILE_TYPE;

//
// Define the structures used by the I/O system
//

//
// Define empty typedefs for the _IRP, _DEVICE_OBJECT, and _DRIVER_OBJECT
// structures so they may be referenced by function types before they are
// actually defined.
//
struct _DEVICE_DESCRIPTION;
struct _DEVICE_OBJECT;
struct _DMA_ADAPTER;
struct _DRIVER_OBJECT;
struct _DRIVE_LAYOUT_INFORMATION;
struct _DISK_PARTITION;
struct _FILE_OBJECT;
struct _IRP;
struct _SCSI_REQUEST_BLOCK;

//
// Define the I/O version of a DPC routine.
//

typedef
VOID
(*PIO_DPC_ROUTINE) (
    IN PKDPC Dpc,
    IN struct _DEVICE_OBJECT *DeviceObject,
    IN struct _IRP *Irp,
    IN PVOID Context
    );

//
// Define driver timer routine type.
//

typedef
VOID
(*PIO_TIMER_ROUTINE) (
    IN struct _DEVICE_OBJECT *DeviceObject,
    IN PVOID Context
    );

//
// Define driver initialization routine type.
//

typedef
NTSTATUS
(*PDRIVER_INITIALIZE) (
    IN struct _DRIVER_OBJECT *DriverObject,
    IN PUNICODE_STRING RegistryPath
    );

//
// Define driver cancel routine type.
//

typedef
VOID
(*PDRIVER_CANCEL) (
    IN struct _DEVICE_OBJECT *DeviceObject,
    IN struct _IRP *Irp
    );

//
// Define driver dispatch routine type.
//

typedef
NTSTATUS
(*PDRIVER_DISPATCH) (
    IN struct _DEVICE_OBJECT *DeviceObject,
    IN struct _IRP *Irp
    );

//
// Define driver start I/O routine type.
//

typedef
VOID
(*PDRIVER_STARTIO) (
    IN struct _DEVICE_OBJECT *DeviceObject,
    IN struct _IRP *Irp
    );

//
// Define driver unload routine type.
//

typedef
VOID
(*PDRIVER_UNLOAD) (
    IN struct _DRIVER_OBJECT *DriverObject
    );

//
// Define driver AddDevice routine type.
//

typedef
NTSTATUS
(*PDRIVER_ADD_DEVICE) (
    IN struct _DRIVER_OBJECT *DriverObject,
    IN struct _DEVICE_OBJECT *PhysicalDeviceObject
    );


//
// Define fast I/O procedure prototypes.
//
// Fast I/O read and write procedures.
//

typedef
BOOLEAN
(*PFAST_IO_CHECK_IF_POSSIBLE) (
    IN struct _FILE_OBJECT *FileObject,
    IN PLARGE_INTEGER FileOffset,
    IN ULONG Length,
    IN BOOLEAN Wait,
    IN ULONG LockKey,
    IN BOOLEAN CheckForReadOperation,
    OUT PIO_STATUS_BLOCK IoStatus,
    IN struct _DEVICE_OBJECT *DeviceObject
    );

typedef
BOOLEAN
(*PFAST_IO_READ) (
    IN struct _FILE_OBJECT *FileObject,
    IN PLARGE_INTEGER FileOffset,
    IN ULONG Length,
    IN BOOLEAN Wait,
    IN ULONG LockKey,
    OUT PVOID Buffer,
    OUT PIO_STATUS_BLOCK IoStatus,
    IN struct _DEVICE_OBJECT *DeviceObject
    );

typedef
BOOLEAN
(*PFAST_IO_WRITE) (
    IN struct _FILE_OBJECT *FileObject,
    IN PLARGE_INTEGER FileOffset,
    IN ULONG Length,
    IN BOOLEAN Wait,
    IN ULONG LockKey,
    IN PVOID Buffer,
    OUT PIO_STATUS_BLOCK IoStatus,
    IN struct _DEVICE_OBJECT *DeviceObject
    );

//
// Fast I/O query basic and standard information procedures.
//

typedef
BOOLEAN
(*PFAST_IO_QUERY_BASIC_INFO) (
    IN struct _FILE_OBJECT *FileObject,
    IN BOOLEAN Wait,
    OUT PFILE_BASIC_INFORMATION Buffer,
    OUT PIO_STATUS_BLOCK IoStatus,
    IN struct _DEVICE_OBJECT *DeviceObject
    );

typedef
BOOLEAN
(*PFAST_IO_QUERY_STANDARD_INFO) (
    IN struct _FILE_OBJECT *FileObject,
    IN BOOLEAN Wait,
    OUT PFILE_STANDARD_INFORMATION Buffer,
    OUT PIO_STATUS_BLOCK IoStatus,
    IN struct _DEVICE_OBJECT *DeviceObject
    );

//
// Fast I/O lock and unlock procedures.
//

typedef
BOOLEAN
(*PFAST_IO_LOCK) (
    IN struct _FILE_OBJECT *FileObject,
    IN PLARGE_INTEGER FileOffset,
    IN PLARGE_INTEGER Length,
    PEPROCESS ProcessId,
    ULONG Key,
    BOOLEAN FailImmediately,
    BOOLEAN ExclusiveLock,
    OUT PIO_STATUS_BLOCK IoStatus,
    IN struct _DEVICE_OBJECT *DeviceObject
    );

typedef
BOOLEAN
(*PFAST_IO_UNLOCK_SINGLE) (
    IN struct _FILE_OBJECT *FileObject,
    IN PLARGE_INTEGER FileOffset,
    IN PLARGE_INTEGER Length,
    PEPROCESS ProcessId,
    ULONG Key,
    OUT PIO_STATUS_BLOCK IoStatus,
    IN struct _DEVICE_OBJECT *DeviceObject
    );

typedef
BOOLEAN
(*PFAST_IO_UNLOCK_ALL) (
    IN struct _FILE_OBJECT *FileObject,
    PEPROCESS ProcessId,
    OUT PIO_STATUS_BLOCK IoStatus,
    IN struct _DEVICE_OBJECT *DeviceObject
    );

typedef
BOOLEAN
(*PFAST_IO_UNLOCK_ALL_BY_KEY) (
    IN struct _FILE_OBJECT *FileObject,
    PVOID ProcessId,
    ULONG Key,
    OUT PIO_STATUS_BLOCK IoStatus,
    IN struct _DEVICE_OBJECT *DeviceObject
    );

//
// Fast I/O device control procedure.
//

typedef
BOOLEAN
(*PFAST_IO_DEVICE_CONTROL) (
    IN struct _FILE_OBJECT *FileObject,
    IN BOOLEAN Wait,
    IN PVOID InputBuffer OPTIONAL,
    IN ULONG InputBufferLength,
    OUT PVOID OutputBuffer OPTIONAL,
    IN ULONG OutputBufferLength,
    IN ULONG IoControlCode,
    OUT PIO_STATUS_BLOCK IoStatus,
    IN struct _DEVICE_OBJECT *DeviceObject
    );

//
// Define callbacks for NtCreateSection to synchronize correctly with
// the file system.  It pre-acquires the resources that will be needed
// when calling to query and set file/allocation size in the file system.
//

typedef
VOID
(*PFAST_IO_ACQUIRE_FILE) (
    IN struct _FILE_OBJECT *FileObject
    );

typedef
VOID
(*PFAST_IO_RELEASE_FILE) (
    IN struct _FILE_OBJECT *FileObject
    );

//
// Define callback for drivers that have device objects attached to lower-
// level drivers' device objects.  This callback is made when the lower-level
// driver is deleting its device object.
//

typedef
VOID
(*PFAST_IO_DETACH_DEVICE) (
    IN struct _DEVICE_OBJECT *SourceDevice,
    IN struct _DEVICE_OBJECT *TargetDevice
    );

//
// This structure is used by the server to quickly get the information needed
// to service a server open call.  It is takes what would be two fast io calls
// one for basic information and the other for standard information and makes
// it into one call.
//

typedef
BOOLEAN
(*PFAST_IO_QUERY_NETWORK_OPEN_INFO) (
    IN struct _FILE_OBJECT *FileObject,
    IN BOOLEAN Wait,
    OUT struct _FILE_NETWORK_OPEN_INFORMATION *Buffer,
    OUT struct _IO_STATUS_BLOCK *IoStatus,
    IN struct _DEVICE_OBJECT *DeviceObject
    );

//
//  Define Mdl-based routines for the server to call
//

typedef
BOOLEAN
(*PFAST_IO_MDL_READ) (
    IN struct _FILE_OBJECT *FileObject,
    IN PLARGE_INTEGER FileOffset,
    IN ULONG Length,
    IN ULONG LockKey,
    OUT PMDL *MdlChain,
    OUT PIO_STATUS_BLOCK IoStatus,
    IN struct _DEVICE_OBJECT *DeviceObject
    );

typedef
BOOLEAN
(*PFAST_IO_MDL_READ_COMPLETE) (
    IN struct _FILE_OBJECT *FileObject,
    IN PMDL MdlChain,
    IN struct _DEVICE_OBJECT *DeviceObject
    );

typedef
BOOLEAN
(*PFAST_IO_PREPARE_MDL_WRITE) (
    IN struct _FILE_OBJECT *FileObject,
    IN PLARGE_INTEGER FileOffset,
    IN ULONG Length,
    IN ULONG LockKey,
    OUT PMDL *MdlChain,
    OUT PIO_STATUS_BLOCK IoStatus,
    IN struct _DEVICE_OBJECT *DeviceObject
    );

typedef
BOOLEAN
(*PFAST_IO_MDL_WRITE_COMPLETE) (
    IN struct _FILE_OBJECT *FileObject,
    IN PLARGE_INTEGER FileOffset,
    IN PMDL MdlChain,
    IN struct _DEVICE_OBJECT *DeviceObject
    );

//
//  If this routine is present, it will be called by FsRtl
//  to acquire the file for the mapped page writer.
//

typedef
NTSTATUS
(*PFAST_IO_ACQUIRE_FOR_MOD_WRITE) (
    IN struct _FILE_OBJECT *FileObject,
    IN PLARGE_INTEGER EndingOffset,
    OUT struct _ERESOURCE **ResourceToRelease,
    IN struct _DEVICE_OBJECT *DeviceObject
             );

typedef
NTSTATUS
(*PFAST_IO_RELEASE_FOR_MOD_WRITE) (
    IN struct _FILE_OBJECT *FileObject,
    IN struct _ERESOURCE *ResourceToRelease,
    IN struct _DEVICE_OBJECT *DeviceObject
             );

//
//  If this routine is present, it will be called by FsRtl
//  to acquire the file for the mapped page writer.
//

typedef
NTSTATUS
(*PFAST_IO_ACQUIRE_FOR_CCFLUSH) (
    IN struct _FILE_OBJECT *FileObject,
    IN struct _DEVICE_OBJECT *DeviceObject
             );

typedef
NTSTATUS
(*PFAST_IO_RELEASE_FOR_CCFLUSH) (
    IN struct _FILE_OBJECT *FileObject,
    IN struct _DEVICE_OBJECT *DeviceObject
             );

typedef
BOOLEAN
(*PFAST_IO_READ_COMPRESSED) (
    IN struct _FILE_OBJECT *FileObject,
    IN PLARGE_INTEGER FileOffset,
    IN ULONG Length,
    IN ULONG LockKey,
    OUT PVOID Buffer,
    OUT PMDL *MdlChain,
    OUT PIO_STATUS_BLOCK IoStatus,
    OUT struct _COMPRESSED_DATA_INFO *CompressedDataInfo,
    IN ULONG CompressedDataInfoLength,
    IN struct _DEVICE_OBJECT *DeviceObject
    );

typedef
BOOLEAN
(*PFAST_IO_WRITE_COMPRESSED) (
    IN struct _FILE_OBJECT *FileObject,
    IN PLARGE_INTEGER FileOffset,
    IN ULONG Length,
    IN ULONG LockKey,
    IN PVOID Buffer,
    OUT PMDL *MdlChain,
    OUT PIO_STATUS_BLOCK IoStatus,
    IN struct _COMPRESSED_DATA_INFO *CompressedDataInfo,
    IN ULONG CompressedDataInfoLength,
    IN struct _DEVICE_OBJECT *DeviceObject
    );

typedef
BOOLEAN
(*PFAST_IO_MDL_READ_COMPLETE_COMPRESSED) (
    IN struct _FILE_OBJECT *FileObject,
    IN PMDL MdlChain,
    IN struct _DEVICE_OBJECT *DeviceObject
    );

typedef
BOOLEAN
(*PFAST_IO_MDL_WRITE_COMPLETE_COMPRESSED) (
    IN struct _FILE_OBJECT *FileObject,
    IN PLARGE_INTEGER FileOffset,
    IN PMDL MdlChain,
    IN struct _DEVICE_OBJECT *DeviceObject
    );

typedef
BOOLEAN
(*PFAST_IO_QUERY_OPEN) (
    IN struct _IRP *Irp,
    OUT PFILE_NETWORK_OPEN_INFORMATION NetworkInformation,
    IN struct _DEVICE_OBJECT *DeviceObject
    );

//
// Define the structure to describe the Fast I/O dispatch routines.  Any
// additions made to this structure MUST be added monotonically to the end
// of the structure, and fields CANNOT be removed from the middle.
//

typedef struct _FAST_IO_DISPATCH {
    ULONG SizeOfFastIoDispatch;
    PFAST_IO_CHECK_IF_POSSIBLE FastIoCheckIfPossible;
    PFAST_IO_READ FastIoRead;
    PFAST_IO_WRITE FastIoWrite;
    PFAST_IO_QUERY_BASIC_INFO FastIoQueryBasicInfo;
    PFAST_IO_QUERY_STANDARD_INFO FastIoQueryStandardInfo;
    PFAST_IO_LOCK FastIoLock;
    PFAST_IO_UNLOCK_SINGLE FastIoUnlockSingle;
    PFAST_IO_UNLOCK_ALL FastIoUnlockAll;
    PFAST_IO_UNLOCK_ALL_BY_KEY FastIoUnlockAllByKey;
    PFAST_IO_DEVICE_CONTROL FastIoDeviceControl;
    PFAST_IO_ACQUIRE_FILE AcquireFileForNtCreateSection;
    PFAST_IO_RELEASE_FILE ReleaseFileForNtCreateSection;
    PFAST_IO_DETACH_DEVICE FastIoDetachDevice;
    PFAST_IO_QUERY_NETWORK_OPEN_INFO FastIoQueryNetworkOpenInfo;
    PFAST_IO_ACQUIRE_FOR_MOD_WRITE AcquireForModWrite;
    PFAST_IO_MDL_READ MdlRead;
    PFAST_IO_MDL_READ_COMPLETE MdlReadComplete;
    PFAST_IO_PREPARE_MDL_WRITE PrepareMdlWrite;
    PFAST_IO_MDL_WRITE_COMPLETE MdlWriteComplete;
    PFAST_IO_READ_COMPRESSED FastIoReadCompressed;
    PFAST_IO_WRITE_COMPRESSED FastIoWriteCompressed;
    PFAST_IO_MDL_READ_COMPLETE_COMPRESSED MdlReadCompleteCompressed;
    PFAST_IO_MDL_WRITE_COMPLETE_COMPRESSED MdlWriteCompleteCompressed;
    PFAST_IO_QUERY_OPEN FastIoQueryOpen;
    PFAST_IO_RELEASE_FOR_MOD_WRITE ReleaseForModWrite;
    PFAST_IO_ACQUIRE_FOR_CCFLUSH AcquireForCcFlush;
    PFAST_IO_RELEASE_FOR_CCFLUSH ReleaseForCcFlush;
} FAST_IO_DISPATCH, *PFAST_IO_DISPATCH;

//
// Define the actions that a driver execution routine may request of the
// adapter/controller allocation routines upon return.
//

typedef enum _IO_ALLOCATION_ACTION {
    KeepObject = 1,
    DeallocateObject,
    DeallocateObjectKeepRegisters
} IO_ALLOCATION_ACTION, *PIO_ALLOCATION_ACTION;

//
// Define device driver adapter/controller execution routine.
//

typedef
IO_ALLOCATION_ACTION
(*PDRIVER_CONTROL) (
    IN struct _DEVICE_OBJECT *DeviceObject,
    IN struct _IRP *Irp,
    IN PVOID MapRegisterBase,
    IN PVOID Context
    );

//
// Define the I/O system's security context type for use by file system's
// when checking access to volumes, files, and directories.
//

typedef struct _IO_SECURITY_CONTEXT {
    PSECURITY_QUALITY_OF_SERVICE SecurityQos;
    PACCESS_STATE AccessState;
    ACCESS_MASK DesiredAccess;
    ULONG FullCreateOptions;
} IO_SECURITY_CONTEXT, *PIO_SECURITY_CONTEXT;

//
// Define object type specific fields of various objects used by the I/O system
//

typedef struct _DMA_ADAPTER *PADAPTER_OBJECT;

//
// Define Wait Context Block (WCB)
//

typedef struct _WAIT_CONTEXT_BLOCK {
    KDEVICE_QUEUE_ENTRY WaitQueueEntry;
    PDRIVER_CONTROL DeviceRoutine;
    PVOID DeviceContext;
    ULONG NumberOfMapRegisters;
    PVOID DeviceObject;
    PVOID CurrentIrp;
    PKDPC BufferChainingDpc;
} WAIT_CONTEXT_BLOCK, *PWAIT_CONTEXT_BLOCK;

//
// Define Device Object (DO) flags
//
#define DO_BUFFERED_IO                  0x00000004          
#define DO_EXCLUSIVE                    0x00000008          
#define DO_DIRECT_IO                    0x00000010          
#define DO_MAP_IO_BUFFER                0x00000020          
#define DO_DEVICE_INITIALIZING          0x00000080          
#define DO_SHUTDOWN_REGISTERED          0x00000800          
#define DO_BUS_ENUMERATED_DEVICE        0x00001000          
#define DO_POWER_PAGABLE                0x00002000          
#define DO_POWER_INRUSH                 0x00004000          
#define DO_POWER_NOOP                   0x00008000          
//
// Device Object structure definition
//

typedef struct _DEVICE_OBJECT {
    CSHORT Type;
    USHORT Size;
    LONG ReferenceCount;
    struct _DRIVER_OBJECT *DriverObject;
    struct _DEVICE_OBJECT *NextDevice;
    struct _DEVICE_OBJECT *AttachedDevice;
    struct _IRP *CurrentIrp;
    PIO_TIMER Timer;
    ULONG Flags;                                // See above:  DO_...
    ULONG Characteristics;                      // See ntioapi:  FILE_...
    PVOID DoNotUse1;
    PVOID DeviceExtension;
    DEVICE_TYPE DeviceType;
    CCHAR StackSize;
    union {
        LIST_ENTRY ListEntry;
        WAIT_CONTEXT_BLOCK Wcb;
    } Queue;
    ULONG AlignmentRequirement;
    KDEVICE_QUEUE DeviceQueue;
    KDPC Dpc;

    //
    //  The following field is for exclusive use by the filesystem to keep
    //  track of the number of Fsp threads currently using the device
    //

    ULONG ActiveThreadCount;
    PSECURITY_DESCRIPTOR SecurityDescriptor;
    KEVENT DeviceLock;

    USHORT SectorSize;
    USHORT Spare1;

    struct _DEVOBJ_EXTENSION  *DeviceObjectExtension;
    PVOID  Reserved;
} DEVICE_OBJECT;
typedef struct _DEVICE_OBJECT *PDEVICE_OBJECT; 


struct  _DEVICE_OBJECT_POWER_EXTENSION;

typedef struct _DEVOBJ_EXTENSION {

    CSHORT          Type;
    USHORT          Size;

    //
    // Public part of the DeviceObjectExtension structure
    //

    PDEVICE_OBJECT  DeviceObject;               // owning device object


} DEVOBJ_EXTENSION, *PDEVOBJ_EXTENSION;

//
// Define Driver Object (DRVO) flags
//

#define DRVO_UNLOAD_INVOKED             0x00000001
#define DRVO_LEGACY_DRIVER              0x00000002
#define DRVO_BUILTIN_DRIVER             0x00000004    // Driver objects for Hal, PnP Mgr

typedef struct _DRIVER_EXTENSION {

    //
    // Back pointer to Driver Object
    //

    struct _DRIVER_OBJECT *DriverObject;

    //
    // The AddDevice entry point is called by the Plug & Play manager
    // to inform the driver when a new device instance arrives that this
    // driver must control.
    //

    PDRIVER_ADD_DEVICE AddDevice;

    //
    // The count field is used to count the number of times the driver has
    // had its registered reinitialization routine invoked.
    //

    ULONG Count;

    //
    // The service name field is used by the pnp manager to determine
    // where the driver related info is stored in the registry.
    //

    UNICODE_STRING ServiceKeyName;

    //
    // Note: any new shared fields get added here.
    //


} DRIVER_EXTENSION, *PDRIVER_EXTENSION;

typedef struct _DRIVER_OBJECT {
    CSHORT Type;
    CSHORT Size;

    //
    // The following links all of the devices created by a single driver
    // together on a list, and the Flags word provides an extensible flag
    // location for driver objects.
    //

    PDEVICE_OBJECT DeviceObject;
    ULONG Flags;

    //
    // The following section describes where the driver is loaded.  The count
    // field is used to count the number of times the driver has had its
    // registered reinitialization routine invoked.
    //

    PVOID DriverStart;
    ULONG DriverSize;
    PVOID DriverSection;
    PDRIVER_EXTENSION DriverExtension;

    //
    // The driver name field is used by the error log thread
    // determine the name of the driver that an I/O request is/was bound.
    //

    UNICODE_STRING DriverName;

    //
    // The following section is for registry support.  Thise is a pointer
    // to the path to the hardware information in the registry
    //

    PUNICODE_STRING HardwareDatabase;

    //
    // The following section contains the optional pointer to an array of
    // alternate entry points to a driver for "fast I/O" support.  Fast I/O
    // is performed by invoking the driver routine directly with separate
    // parameters, rather than using the standard IRP call mechanism.  Note
    // that these functions may only be used for synchronous I/O, and when
    // the file is cached.
    //

    PFAST_IO_DISPATCH FastIoDispatch;

    //
    // The following section describes the entry points to this particular
    // driver.  Note that the major function dispatch table must be the last
    // field in the object so that it remains extensible.
    //

    PDRIVER_INITIALIZE DriverInit;
    PDRIVER_STARTIO DriverStartIo;
    PDRIVER_UNLOAD DriverUnload;
    PDRIVER_DISPATCH MajorFunction[IRP_MJ_MAXIMUM_FUNCTION + 1];

} DRIVER_OBJECT;
typedef struct _DRIVER_OBJECT *PDRIVER_OBJECT; 



//
// The following structure is pointed to by the SectionObject pointer field
// of a file object, and is allocated by the various NT file systems.
//

typedef struct _SECTION_OBJECT_POINTERS {
    PVOID DataSectionObject;
    PVOID SharedCacheMap;
    PVOID ImageSectionObject;
} SECTION_OBJECT_POINTERS;
typedef SECTION_OBJECT_POINTERS *PSECTION_OBJECT_POINTERS;

//
// Define the format of a completion message.
//

typedef struct _IO_COMPLETION_CONTEXT {
    PVOID Port;
    ULONG Key;
} IO_COMPLETION_CONTEXT, *PIO_COMPLETION_CONTEXT;

//
// Define File Object (FO) flags
//

#define FO_FILE_OPEN                    0x00000001
#define FO_SYNCHRONOUS_IO               0x00000002
#define FO_ALERTABLE_IO                 0x00000004
#define FO_NO_INTERMEDIATE_BUFFERING    0x00000008
#define FO_WRITE_THROUGH                0x00000010
#define FO_SEQUENTIAL_ONLY              0x00000020
#define FO_CACHE_SUPPORTED              0x00000040
#define FO_NAMED_PIPE                   0x00000080
#define FO_STREAM_FILE                  0x00000100
#define FO_MAILSLOT                     0x00000200
#define FO_GENERATE_AUDIT_ON_CLOSE      0x00000400
#define FO_DIRECT_DEVICE_OPEN           0x00000800
#define FO_FILE_MODIFIED                0x00001000
#define FO_FILE_SIZE_CHANGED            0x00002000
#define FO_CLEANUP_COMPLETE             0x00004000
#define FO_TEMPORARY_FILE               0x00008000
#define FO_DELETE_ON_CLOSE              0x00010000
#define FO_OPENED_CASE_SENSITIVE        0x00020000
#define FO_HANDLE_CREATED               0x00040000
#define FO_FILE_FAST_IO_READ            0x00080000
#define FO_RANDOM_ACCESS                0x00100000

typedef struct _FILE_OBJECT {
    CSHORT Type;
    CSHORT Size;
    PDEVICE_OBJECT DeviceObject;
    PVOID DoNotUse1;
    PVOID FsContext;
    PVOID FsContext2;
    PSECTION_OBJECT_POINTERS SectionObjectPointer;
    PVOID PrivateCacheMap;
    NTSTATUS FinalStatus;
    struct _FILE_OBJECT *RelatedFileObject;
    BOOLEAN LockOperation;
    BOOLEAN DeletePending;
    BOOLEAN ReadAccess;
    BOOLEAN WriteAccess;
    BOOLEAN DeleteAccess;
    BOOLEAN SharedRead;
    BOOLEAN SharedWrite;
    BOOLEAN SharedDelete;
    ULONG Flags;
    UNICODE_STRING FileName;
    LARGE_INTEGER CurrentByteOffset;
    ULONG Waiters;
    ULONG Busy;
    PVOID LastLock;
    KEVENT Lock;
    KEVENT Event;
    PIO_COMPLETION_CONTEXT CompletionContext;
} FILE_OBJECT;
typedef struct _FILE_OBJECT *PFILE_OBJECT; 

//
// Define I/O Request Packet (IRP) flags
//

#define IRP_NOCACHE                     0x00000001
#define IRP_PAGING_IO                   0x00000002
#define IRP_MOUNT_COMPLETION            0x00000002
#define IRP_SYNCHRONOUS_API             0x00000004
#define IRP_ASSOCIATED_IRP              0x00000008
#define IRP_BUFFERED_IO                 0x00000010
#define IRP_DEALLOCATE_BUFFER           0x00000020
#define IRP_INPUT_OPERATION             0x00000040
#define IRP_SYNCHRONOUS_PAGING_IO       0x00000040
#define IRP_CREATE_OPERATION            0x00000080
#define IRP_READ_OPERATION              0x00000100
#define IRP_WRITE_OPERATION             0x00000200
#define IRP_CLOSE_OPERATION             0x00000400

//
// Define I/O request packet (IRP) alternate flags for allocation control.
//

#define IRP_QUOTA_CHARGED               0x01
#define IRP_ALLOCATED_MUST_SUCCEED      0x02
#define IRP_ALLOCATED_FIXED_SIZE        0x04

//
// I/O Request Packet (IRP) definition
//

typedef struct _IRP {
    CSHORT Type;
    USHORT Size;

    //
    // Define the common fields used to control the IRP.
    //

    //
    // Define a pointer to the Memory Descriptor List (MDL) for this I/O
    // request.  This field is only used if the I/O is "direct I/O".
    //

    PMDL MdlAddress;

    //
    // Flags word - used to remember various flags.
    //

    ULONG Flags;

    //
    // The following union is used for one of three purposes:
    //
    //    1. This IRP is an associated IRP.  The field is a pointer to a master
    //       IRP.
    //
    //    2. This is the master IRP.  The field is the count of the number of
    //       IRPs which must complete (associated IRPs) before the master can
    //       complete.
    //
    //    3. This operation is being buffered and the field is the address of
    //       the system space buffer.
    //

    union {
        struct _IRP *MasterIrp;
        LONG IrpCount;
        PVOID SystemBuffer;
    } AssociatedIrp;

    //
    // Thread list entry - allows queueing the IRP to the thread pending I/O
    // request packet list.
    //

    LIST_ENTRY ThreadListEntry;

    //
    // I/O status - final status of operation.
    //

    IO_STATUS_BLOCK IoStatus;

    //
    // Requestor mode - mode of the original requestor of this operation.
    //

    KPROCESSOR_MODE RequestorMode;

    //
    // Pending returned - TRUE if pending was initially returned as the
    // status for this packet.
    //

    BOOLEAN PendingReturned;

    //
    // Stack state information.
    //

    CHAR StackCount;
    CHAR CurrentLocation;

    //
    // Cancel - packet has been canceled.
    //

    BOOLEAN Cancel;

    //
    // Cancel Irql - Irql at which the cancel spinlock was acquired.
    //

    KIRQL CancelIrql;

    //
    // ApcEnvironment - Used to save the APC environment at the time that the
    // packet was initialized.
    //

    CCHAR ApcEnvironment;

    //
    // Allocation control flags.
    //

    UCHAR AllocationFlags;

    //
    // User parameters.
    //

    PIO_STATUS_BLOCK UserIosb;
    PKEVENT UserEvent;
    union {
        struct {
            PIO_APC_ROUTINE UserApcRoutine;
            PVOID UserApcContext;
        } AsynchronousParameters;
        LARGE_INTEGER AllocationSize;
    } Overlay;

    //
    // CancelRoutine - Used to contain the address of a cancel routine supplied
    // by a device driver when the IRP is in a cancelable state.
    //

    PDRIVER_CANCEL CancelRoutine;

    //
    // Note that the UserBuffer parameter is outside of the stack so that I/O
    // completion can copy data back into the user's address space without
    // having to know exactly which service was being invoked.  The length
    // of the copy is stored in the second half of the I/O status block. If
    // the UserBuffer field is NULL, then no copy is performed.
    //

    PVOID UserBuffer;

    //
    // Kernel structures
    //
    // The following section contains kernel structures which the IRP needs
    // in order to place various work information in kernel controller system
    // queues.  Because the size and alignment cannot be controlled, they are
    // placed here at the end so they just hang off and do not affect the
    // alignment of other fields in the IRP.
    //

    union {

        struct {

            union {

                //
                // DeviceQueueEntry - The device queue entry field is used to
                // queue the IRP to the device driver device queue.
                //

                KDEVICE_QUEUE_ENTRY DeviceQueueEntry;

                struct {

                    //
                    // The following are available to the driver to use in
                    // whatever manner is desired, while the driver owns the
                    // packet.
                    //

                    PVOID DriverContext[4];

                } ;

            } ;

            //
            // Thread - pointer to caller's Thread Control Block.
            //

            PETHREAD Thread;

            //
            // Auxiliary buffer - pointer to any auxiliary buffer that is
            // required to pass information to a driver that is not contained
            // in a normal buffer.
            //

            PCHAR AuxiliaryBuffer;

            //
            // List entry - used to queue the packet to completion queue, among
            // others.
            //

            LIST_ENTRY ListEntry;

            //
            // Current stack location - contains a pointer to the current
            // IO_STACK_LOCATION structure in the IRP stack.  This field
            // should never be directly accessed by drivers.  They should
            // use the standard functions.
            //

            struct _IO_STACK_LOCATION *CurrentStackLocation;

            //
            // Original file object - pointer to the original file object
            // that was used to open the file.  This field is owned by the
            // I/O system and should not be used by any other drivers.
            //

            PFILE_OBJECT OriginalFileObject;

        } Overlay;

        //
        // APC - This APC control block is used for the special kernel APC as
        // well as for the caller's APC, if one was specified in the original
        // argument list.  If so, then the APC is reused for the normal APC for
        // whatever mode the caller was in and the "special" routine that is
        // invoked before the APC gets control simply deallocates the IRP.
        //

        KAPC Apc;

        //
        // CompletionKey - This is the key that is used to distinguish
        // individual I/O operations initiated on a single file handle.
        //

        ULONG CompletionKey;

    } Tail;

} IRP, *PIRP;

//
// Define completion routine types for use in stack locations in an IRP
//

typedef
NTSTATUS
(*PIO_COMPLETION_ROUTINE) (
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp,
    IN PVOID Context
    );

//
// Define stack location control flags
//

#define SL_PENDING_RETURNED             0x01
#define SL_INVOKE_ON_CANCEL             0x20
#define SL_INVOKE_ON_SUCCESS            0x40
#define SL_INVOKE_ON_ERROR              0x80

//
// Define flags for various functions
//

//
// Create / Create Named Pipe
//
// The following flags must exactly match those in the IoCreateFile call's
// options.  The case sensitive flag is added in later, by the parse routine,
// and is not an actual option to open.  Rather, it is part of the object
// manager's attributes structure.
//

#define SL_FORCE_ACCESS_CHECK           0x01
#define SL_OPEN_PAGING_FILE             0x02
#define SL_OPEN_TARGET_DIRECTORY        0x04

#define SL_CASE_SENSITIVE               0x80

//
// Read / Write
//

#define SL_KEY_SPECIFIED                0x01
#define SL_OVERRIDE_VERIFY_VOLUME       0x02
#define SL_WRITE_THROUGH                0x04
#define SL_FT_SEQUENTIAL_WRITE          0x08

//
// Device I/O Control
//
//
// Same SL_OVERRIDE_VERIFY_VOLUME as for read/write above.
//

//
// Lock
//

#define SL_FAIL_IMMEDIATELY             0x01
#define SL_EXCLUSIVE_LOCK               0x02

//
// QueryDirectory / QueryEa / QueryQuota
//

#define SL_RESTART_SCAN                 0x01
#define SL_RETURN_SINGLE_ENTRY          0x02
#define SL_INDEX_SPECIFIED              0x04

//
// NotifyDirectory
//

#define SL_WATCH_TREE                   0x01

//
// FileSystemControl
//
//    minor: mount/verify volume
//

#define SL_ALLOW_RAW_MOUNT              0x01

//
// Define PNP/POWER types required by IRP_MJ_PNP_POWER.
//

typedef enum _DEVICE_RELATION_TYPE {
    BusRelations,
    EjectionRelations,
    PowerRelations,
    RemovalRelations,
    TargetDeviceRelation
} DEVICE_RELATION_TYPE, *PDEVICE_RELATION_TYPE;

typedef struct _DEVICE_RELATIONS {
    ULONG Count;
    PDEVICE_OBJECT Objects[1];  // variable length
} DEVICE_RELATIONS, *PDEVICE_RELATIONS;

typedef enum _DEVICE_USAGE_NOTIFICATION_TYPE {
    DeviceUsageTypeUndefined,
    DeviceUsageTypePaging,
    DeviceUsageTypeHibernation,
    DeviceUsageTypeDumpFile
} DEVICE_USAGE_NOTIFICATION_TYPE;


typedef VOID (*PINTERFACE_REFERENCE)(PVOID Context);
typedef VOID (*PINTERFACE_DEREFERENCE)(PVOID Context);

typedef struct _INTERFACE {
    USHORT Size;
    USHORT Version;
    PVOID Context;
    PINTERFACE_REFERENCE InterfaceReference;
    PINTERFACE_DEREFERENCE InterfaceDereference;
    // interface specific entries go here
} INTERFACE, *PINTERFACE;



typedef struct _DEVICE_CAPABILITIES {
    USHORT Size;
    USHORT Version;  // the version documented here is version 1
    ULONG Spare1:2;
    ULONG LockSupported:1;
    ULONG EjectSupported:1;
    ULONG Removable:1;
    ULONG DockDevice:1;
    ULONG UniqueID:1;
    ULONG SilentInstall:1;
    ULONG RawDeviceOK:1;
    ULONG SurpriseRemovalOK:1;
    ULONG Reserved: 22;

    ULONG Address;
    ULONG UINumber;

    DEVICE_POWER_STATE DeviceState[PowerSystemMaximum];
    SYSTEM_POWER_STATE SystemWake;
    DEVICE_POWER_STATE DeviceWake;
    ULONG D1Latency;
    ULONG D2Latency;
    ULONG D3Latency;
} DEVICE_CAPABILITIES, *PDEVICE_CAPABILITIES;

typedef struct _POWER_SEQUENCE {
    ULONG SequenceD1;
    ULONG SequenceD2;
    ULONG SequenceD3;
} POWER_SEQUENCE, *PPOWER_SEQUENCE;

typedef enum {
    BusQueryDeviceID = 0,       // <Enumerator>\<Enumerator-specific device id>
    BusQueryHardwareIDs = 1,    // Hardware ids
    BusQueryCompatibleIDs = 2,  // compatible device ids
    BusQueryInstanceID = 3      // persistent id for this instance of the device
} BUS_QUERY_ID_TYPE, *PBUS_QUERY_ID_TYPE;

typedef ULONG PNP_DEVICE_STATE, *PPNP_DEVICE_STATE;

#define PNP_DEVICE_DISABLED                      0x00000001
#define PNP_DEVICE_DONT_DISPLAY_IN_UI            0x00000002
#define PNP_DEVICE_FAILED                        0x00000004
#define PNP_DEVICE_REMOVED                       0x00000008
#define PNP_DEVICE_RESOURCE_REQUIREMENTS_CHANGED 0x00000010

typedef enum {
    DeviceTextDescription = 0,            // DeviceDesc property
    DeviceTextLocationInformation = 1     // DeviceLocation property
} DEVICE_TEXT_TYPE, *PDEVICE_TEXT_TYPE;

//
// Define I/O Request Packet (IRP) stack locations
//

#if !defined(_ALPHA_)
#include "pshpack4.h"
#endif
typedef struct _IO_STACK_LOCATION {
    UCHAR MajorFunction;
    UCHAR MinorFunction;
    UCHAR Flags;
    UCHAR Control;

    //
    // The following user parameters are based on the service that is being
    // invoked.  Drivers and file systems can determine which set to use based
    // on the above major and minor function codes.
    //

    union {

        //
        // System service parameters for:  NtCreateFile
        //

        struct {
            PIO_SECURITY_CONTEXT SecurityContext;
            ULONG Options;
            USHORT FileAttributes;
            USHORT ShareAccess;
            ULONG EaLength;
        } Create;


        //
        // System service parameters for:  NtReadFile
        //

        struct {
            ULONG Length;
            ULONG Key;
            LARGE_INTEGER ByteOffset;
        } Read;

        //
        // System service parameters for:  NtWriteFile
        //

        struct {
            ULONG Length;
            ULONG Key;
            LARGE_INTEGER ByteOffset;
        } Write;


        //
        // System service parameters for:  NtQueryInformationFile
        //

        struct {
            ULONG Length;
            FILE_INFORMATION_CLASS FileInformationClass;
        } QueryFile;

        //
        // System service parameters for:  NtSetInformationFile
        //

        struct {
            ULONG Length;
            FILE_INFORMATION_CLASS FileInformationClass;
            PFILE_OBJECT FileObject;
            union {
                struct {
                    BOOLEAN ReplaceIfExists;
                    BOOLEAN AdvanceOnly;
                };
                ULONG ClusterCount;
                HANDLE DeleteHandle;
            };
        } SetFile;


        //
        // System service parameters for:  NtQueryVolumeInformationFile
        //

        struct {
            ULONG Length;
            FS_INFORMATION_CLASS FsInformationClass;
        } QueryVolume;


        //
        // System service parameters for:  NtFlushBuffersFile
        //
        // No extra user-supplied parameters.
        //


        //
        // System service parameters for:  NtDeviceIoControlFile
        //
        // Note that the user's output buffer is stored in the UserBuffer field
        // and the user's input buffer is stored in the SystemBuffer field.
        //

        struct {
            ULONG OutputBufferLength;
            ULONG InputBufferLength;
            ULONG IoControlCode;
            PVOID Type3InputBuffer;
        } DeviceIoControl;

        //
        // Non-system service parameters.
        //
        // Parameters for MountVolume
        //

        struct {
            PVOID DoNotUse1;
            PDEVICE_OBJECT DeviceObject;
        } MountVolume;

        //
        // Parameters for VerifyVolume
        //

        struct {
            PVOID DoNotUse1;
            PDEVICE_OBJECT DeviceObject;
        } VerifyVolume;

        //
        // Parameters for Scsi with internal device contorl.
        //

        struct {
            struct _SCSI_REQUEST_BLOCK *Srb;
        } Scsi;


        //
        // Parameters for IRP_MN_QUERY_DEVICE_RELATIONS
        //

        struct {
            DEVICE_RELATION_TYPE Type;
        } QueryDeviceRelations;



        //
        // Parameters for IRP_MN_QUERY_INTERFACE
        //

        struct {
            CONST GUID *InterfaceType;
            USHORT Size;
            USHORT Version;
            PINTERFACE Interface;
            PVOID InterfaceSpecificData;
        } QueryInterface;



        //
        // Parameters for IRP_MN_QUERY_CAPABILITIES
        //

        struct {
            PDEVICE_CAPABILITIES Capabilities;
        } DeviceCapabilities;

        //
        // Parameters for IRP_MN_FILTER_RESOURCE_REQUIREMENTS
        //

        struct {
            PIO_RESOURCE_REQUIREMENTS_LIST IoResourceRequirementList;
        } FilterResourceRequirements;

        //
        // Parameters for IRP_MN_READ_CONFIG and IRP_MN_WRITE_CONFIG
        //

        struct {
            ULONG WhichSpace;
            PVOID Buffer;
            ULONG Offset;
            ULONG Length;
        } ReadWriteConfig;

        //
        // Parameters for IRP_MN_SET_LOCK
        //

        struct {
            BOOLEAN Lock;
        } SetLock;

        //
        // Parameters for IRP_MN_QUERY_ID
        //

        struct {
            BUS_QUERY_ID_TYPE IdType;
        } QueryId;

        //
        // Parameters for IRP_MN_QUERY_DEVICE_TEXT
        //

        struct {
            DEVICE_TEXT_TYPE DeviceTextType;
            LCID LocaleId;
        } QueryDeviceText;

        //
        // Parameters for IRP_MN_DEVICE_USAGE_NOTIFICATION
        //

        struct {
            BOOLEAN InPath;
            BOOLEAN Reserved[3];
            DEVICE_USAGE_NOTIFICATION_TYPE Type;
        } UsageNotification;

        //
        // Parameters for IRP_MN_WAIT_WAKE
        //

        struct {
            SYSTEM_POWER_STATE PowerState;
        } WaitWake;

        //
        // Parameter for IRP_MN_POWER_SEQUENCE
        //

        struct {
            PPOWER_SEQUENCE PowerSequence;
        } PowerSequence;

        //
        // Parameters for IRP_MN_SET_POWER and IRP_MN_QUERY_POWER
        //

        struct {
            ULONG SystemContext;
            POWER_STATE_TYPE Type;
            POWER_STATE State;
            POWER_ACTION ShutdownType;
        } Power;

        //
        // Parameters for StartDevice
        //

        struct {
            PCM_RESOURCE_LIST AllocatedResources;
            PCM_RESOURCE_LIST AllocatedResourcesTranslated;
        } StartDevice;


        //
        // Parameters for Cleanup
        //
        // No extra parameters supplied
        //

        //
        // WMI Irps
        //

        struct {
            ULONG ProviderId;
            PVOID DataPath;
            ULONG BufferSize;
            PVOID Buffer;
        } WMI;

        //
        // Others - driver-specific
        //

        struct {
            PVOID Argument1;
            PVOID Argument2;
            PVOID Argument3;
            PVOID Argument4;
        } Others;

    } Parameters;

    //
    // Save a pointer to this device driver's device object for this request
    // so it can be passed to the completion routine if needed.
    //

    PDEVICE_OBJECT DeviceObject;

    //
    // The following location contains a pointer to the file object for this
    //

    PFILE_OBJECT FileObject;

    //
    // The following routine is invoked depending on the flags in the above
    // flags field.
    //

    PIO_COMPLETION_ROUTINE CompletionRoutine;

    //
    // The following is used to store the address of the context parameter
    // that should be passed to the CompletionRoutine.
    //

    PVOID Context;

} IO_STACK_LOCATION, *PIO_STACK_LOCATION;
#if !defined(_ALPHA_)
#include "poppack.h"
#endif

//
// Define the share access structure used by file systems to determine
// whether or not another accessor may open the file.
//

typedef struct _SHARE_ACCESS {
    ULONG OpenCount;
    ULONG Readers;
    ULONG Writers;
    ULONG Deleters;
    ULONG SharedRead;
    ULONG SharedWrite;
    ULONG SharedDelete;
} SHARE_ACCESS, *PSHARE_ACCESS;

//
// Public I/O routine definitions
//

NTKERNELAPI
VOID
IoAcquireCancelSpinLock(
    OUT PKIRQL Irql
    );


NTKERNELAPI
NTSTATUS
IoAllocateDriverObjectExtension(
    IN PDRIVER_OBJECT DriverObject,
    IN PVOID ClientIdentificationAddress,
    IN ULONG DriverObjectExtensionSize,
    OUT PVOID *DriverObjectExtension
    );


NTKERNELAPI
PVOID
IoAllocateErrorLogEntry(
    IN PVOID IoObject,
    IN UCHAR EntrySize
    );

NTKERNELAPI
PIRP
IoAllocateIrp(
    IN CCHAR StackSize,
    IN BOOLEAN ChargeQuota
    );

NTKERNELAPI
PMDL
IoAllocateMdl(
    IN PVOID VirtualAddress,
    IN ULONG Length,
    IN BOOLEAN SecondaryBuffer,
    IN BOOLEAN ChargeQuota,
    IN OUT PIRP Irp OPTIONAL
    );


NTKERNELAPI
NTSTATUS
IoAttachDevice(
    IN PDEVICE_OBJECT SourceDevice,
    IN PUNICODE_STRING TargetDevice,
    OUT PDEVICE_OBJECT *AttachedDevice
    );


NTKERNELAPI
PDEVICE_OBJECT
IoAttachDeviceToDeviceStack(
    IN PDEVICE_OBJECT SourceDevice,
    IN PDEVICE_OBJECT TargetDevice
    );

NTKERNELAPI
PIRP
IoBuildAsynchronousFsdRequest(
    IN ULONG MajorFunction,
    IN PDEVICE_OBJECT DeviceObject,
    IN OUT PVOID Buffer OPTIONAL,
    IN ULONG Length OPTIONAL,
    IN PLARGE_INTEGER StartingOffset OPTIONAL,
    IN PIO_STATUS_BLOCK IoStatusBlock OPTIONAL
    );

NTKERNELAPI
PIRP
IoBuildDeviceIoControlRequest(
    IN ULONG IoControlCode,
    IN PDEVICE_OBJECT DeviceObject,
    IN PVOID InputBuffer OPTIONAL,
    IN ULONG InputBufferLength,
    OUT PVOID OutputBuffer OPTIONAL,
    IN ULONG OutputBufferLength,
    IN BOOLEAN InternalDeviceIoControl,
    IN PKEVENT Event,
    OUT PIO_STATUS_BLOCK IoStatusBlock
    );

NTKERNELAPI
VOID
IoBuildPartialMdl(
    IN PMDL SourceMdl,
    IN OUT PMDL TargetMdl,
    IN PVOID VirtualAddress,
    IN ULONG Length
    );


NTKERNELAPI
PIRP
IoBuildSynchronousFsdRequest(
    IN ULONG MajorFunction,
    IN PDEVICE_OBJECT DeviceObject,
    IN OUT PVOID Buffer OPTIONAL,
    IN ULONG Length OPTIONAL,
    IN PLARGE_INTEGER StartingOffset OPTIONAL,
    IN PKEVENT Event,
    OUT PIO_STATUS_BLOCK IoStatusBlock
    );

NTKERNELAPI
NTSTATUS
FASTCALL
IofCallDriver(
    IN PDEVICE_OBJECT DeviceObject,
    IN OUT PIRP Irp
    );

#define IoCallDriver(a,b)   \
        IofCallDriver(a,b)

NTKERNELAPI
BOOLEAN
IoCancelIrp(
    IN PIRP Irp
    );


NTKERNELAPI
NTSTATUS
IoCheckShareAccess(
    IN ACCESS_MASK DesiredAccess,
    IN ULONG DesiredShareAccess,
    IN OUT PFILE_OBJECT FileObject,
    IN OUT PSHARE_ACCESS ShareAccess,
    IN BOOLEAN Update
    );

NTKERNELAPI
VOID
FASTCALL
IofCompleteRequest(
    IN PIRP Irp,
    IN CCHAR PriorityBoost
    );

#define IoCompleteRequest(a,b)  \
        IofCompleteRequest(a,b)



NTKERNELAPI
NTSTATUS
IoConnectInterrupt(
    OUT PKINTERRUPT *InterruptObject,
    IN PKSERVICE_ROUTINE ServiceRoutine,
    IN PVOID ServiceContext,
    IN PKSPIN_LOCK SpinLock OPTIONAL,
    IN ULONG Vector,
    IN KIRQL Irql,
    IN KIRQL SynchronizeIrql,
    IN KINTERRUPT_MODE InterruptMode,
    IN BOOLEAN ShareVector,
    IN KAFFINITY ProcessorEnableMask,
    IN BOOLEAN FloatingSave
    );


NTKERNELAPI
NTSTATUS
IoCreateDevice(
    IN PDRIVER_OBJECT DriverObject,
    IN ULONG DeviceExtensionSize,
    IN PUNICODE_STRING DeviceName OPTIONAL,
    IN DEVICE_TYPE DeviceType,
    IN ULONG DeviceCharacteristics,
    IN BOOLEAN Reserved,
    OUT PDEVICE_OBJECT *DeviceObject
    );

#define WDM_MAJORVERSION        0x01
#define WDM_MINORVERSION        0x00

NTKERNELAPI
BOOLEAN
IoIsWdmVersionAvailable(
    IN UCHAR MajorVersion,
    IN UCHAR MinorVersion
    );



NTKERNELAPI
NTSTATUS
IoCreateFile(
    OUT PHANDLE FileHandle,
    IN ACCESS_MASK DesiredAccess,
    IN POBJECT_ATTRIBUTES ObjectAttributes,
    OUT PIO_STATUS_BLOCK IoStatusBlock,
    IN PLARGE_INTEGER AllocationSize OPTIONAL,
    IN ULONG FileAttributes,
    IN ULONG ShareAccess,
    IN ULONG Disposition,
    IN ULONG CreateOptions,
    IN PVOID EaBuffer OPTIONAL,
    IN ULONG EaLength,
    IN CREATE_FILE_TYPE CreateFileType,
    IN PVOID ExtraCreateParameters OPTIONAL,
    IN ULONG Options
    );


NTKERNELAPI
NTSTATUS
IoCreateSymbolicLink(
    IN PUNICODE_STRING SymbolicLinkName,
    IN PUNICODE_STRING DeviceName
    );


NTKERNELAPI
NTSTATUS
IoCreateUnprotectedSymbolicLink(
    IN PUNICODE_STRING SymbolicLinkName,
    IN PUNICODE_STRING DeviceName
    );


NTKERNELAPI
VOID
IoDeleteDevice(
    IN PDEVICE_OBJECT DeviceObject
    );

NTKERNELAPI
NTSTATUS
IoDeleteSymbolicLink(
    IN PUNICODE_STRING SymbolicLinkName
    );

NTKERNELAPI
VOID
IoDetachDevice(
    IN OUT PDEVICE_OBJECT TargetDevice
    );



NTKERNELAPI
VOID
IoDisconnectInterrupt(
    IN PKINTERRUPT InterruptObject
    );


NTKERNELAPI
VOID
IoFreeIrp(
    IN PIRP Irp
    );

NTKERNELAPI
VOID
IoFreeMdl(
    IN PMDL Mdl
    );

NTKERNELAPI                                 
PDEVICE_OBJECT                              
IoGetAttachedDeviceReference(               
    IN PDEVICE_OBJECT DeviceObject          
    );                                      
                                            

//++
//
// PIO_STACK_LOCATION
// IoGetCurrentIrpStackLocation(
//     IN PIRP Irp
//     )
//
// Routine Description:
//
//     This routine is invoked to return a pointer to the current stack location
//     in an I/O Request Packet (IRP).
//
// Arguments:
//
//     Irp - Pointer to the I/O Request Packet.
//
// Return Value:
//
//     The function value is a pointer to the current stack location in the
//     packet.
//
//--

#define IoGetCurrentIrpStackLocation( Irp ) ( (Irp)->Tail.Overlay.CurrentStackLocation )


NTKERNELAPI
PVOID
IoGetDriverObjectExtension(
    IN PDRIVER_OBJECT DriverObject,
    IN PVOID ClientIdentificationAddress
    );

NTKERNELAPI
PEPROCESS
IoGetCurrentProcess(
    VOID
    );



NTKERNELAPI
NTSTATUS
IoGetDeviceObjectPointer(
    IN PUNICODE_STRING ObjectName,
    IN ACCESS_MASK DesiredAccess,
    OUT PFILE_OBJECT *FileObject,
    OUT PDEVICE_OBJECT *DeviceObject
    );

NTKERNELAPI
struct _DMA_ADAPTER *
IoGetDmaAdapter(
    IN PDEVICE_OBJECT PhysicalDeviceObject,
    IN struct _DEVICE_DESCRIPTION *DeviceDescription,
    IN OUT PULONG NumberOfMapRegisters
    );


//++
//
// ULONG
// IoGetFunctionCodeFromCtlCode(
//     IN ULONG ControlCode
//     )
//
// Routine Description:
//
//     This routine extracts the function code from IOCTL and FSCTL function
//     control codes.
//     This routine should only be used by kernel mode code.
//
// Arguments:
//
//     ControlCode - A function control code (IOCTL or FSCTL) from which the
//         function code must be extracted.
//
// Return Value:
//
//     The extracted function code.
//
// Note:
//
//     The CTL_CODE macro, used to create IOCTL and FSCTL function control
//     codes, is defined in ntioapi.h
//
//--

#define IoGetFunctionCodeFromCtlCode( ControlCode ) (\
    ( ControlCode >> 2) & 0x00000FFF )


//++
//
// PIO_STACK_LOCATION
// IoGetNextIrpStackLocation(
//     IN PIRP Irp
//     )
//
// Routine Description:
//
//     This routine is invoked to return a pointer to the next stack location
//     in an I/O Request Packet (IRP).
//
// Arguments:
//
//     Irp - Pointer to the I/O Request Packet.
//
// Return Value:
//
//     The function value is a pointer to the next stack location in the packet.
//
//--

#define IoGetNextIrpStackLocation( Irp ) (\
    (Irp)->Tail.Overlay.CurrentStackLocation - 1 )

NTKERNELAPI
PDEVICE_OBJECT
IoGetRelatedDeviceObject(
    IN PFILE_OBJECT FileObject
    );


//++
//
// VOID
// IoInitializeDpcRequest(
//     IN PDEVICE_OBJECT DeviceObject,
//     IN PIO_DPC_ROUTINE DpcRoutine
//     )
//
// Routine Description:
//
//     This routine is invoked to initialize the DPC in a device object for a
//     device driver during its initialization routine.  The DPC is used later
//     when the driver interrupt service routine requests that a DPC routine
//     be queued for later execution.
//
// Arguments:
//
//     DeviceObject - Pointer to the device object that the request is for.
//
//     DpcRoutine - Address of the driver's DPC routine to be executed when
//         the DPC is dequeued for processing.
//
// Return Value:
//
//     None.
//
//--

#define IoInitializeDpcRequest( DeviceObject, DpcRoutine ) (\
    KeInitializeDpc( &(DeviceObject)->Dpc,                  \
                     (PKDEFERRED_ROUTINE) (DpcRoutine),     \
                     (DeviceObject) ) )

NTKERNELAPI
VOID
IoInitializeIrp(
    IN OUT PIRP Irp,
    IN USHORT PacketSize,
    IN CCHAR StackSize
    );

NTKERNELAPI
NTSTATUS
IoInitializeTimer(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIO_TIMER_ROUTINE TimerRoutine,
    IN PVOID Context
    );


//++
//
// BOOLEAN
// IoIsErrorUserInduced(
//     IN NTSTATUS Status
//     )
//
// Routine Description:
//
//     This routine is invoked to determine if an error was as a
//     result of user actions.  Typically these error are related
//     to removable media and will result in a pop-up.
//
// Arguments:
//
//     Status - The status value to check.
//
// Return Value:
//
//     The function value is TRUE if the user induced the error,
//     otherwise FALSE is returned.
//
//--
#define IoIsErrorUserInduced( Status ) ((BOOLEAN)  \
    (((Status) == STATUS_DEVICE_NOT_READY) ||      \
     ((Status) == STATUS_IO_TIMEOUT) ||            \
     ((Status) == STATUS_MEDIA_WRITE_PROTECTED) || \
     ((Status) == STATUS_NO_MEDIA_IN_DEVICE) ||    \
     ((Status) == STATUS_VERIFY_REQUIRED) ||       \
     ((Status) == STATUS_UNRECOGNIZED_MEDIA) ||    \
     ((Status) == STATUS_WRONG_VOLUME)))


//++
//
// VOID
// IoMarkIrpPending(
//     IN OUT PIRP Irp
//     )
//
// Routine Description:
//
//     This routine marks the specified I/O Request Packet (IRP) to indicate
//     that an initial status of STATUS_PENDING was returned to the caller.
//     This is used so that I/O completion can determine whether or not to
//     fully complete the I/O operation requested by the packet.
//
// Arguments:
//
//     Irp - Pointer to the I/O Request Packet to be marked pending.
//
// Return Value:
//
//     None.
//
//--

#define IoMarkIrpPending( Irp ) ( \
    IoGetCurrentIrpStackLocation( (Irp) )->Control |= SL_PENDING_RETURNED )


NTKERNELAPI
VOID
IoReleaseCancelSpinLock(
    IN KIRQL Irql
    );


//++
//
// VOID
// IoRequestDpc(
//     IN PDEVICE_OBJECT DeviceObject,
//     IN PIRP Irp,
//     IN PVOID Context
//     )
//
// Routine Description:
//
//     This routine is invoked by the device driver's interrupt service routine
//     to request that a DPC routine be queued for later execution at a lower
//     IRQL.
//
// Arguments:
//
//     DeviceObject - Device object for which the request is being processed.
//
//     Irp - Pointer to the current I/O Request Packet (IRP) for the specified
//         device.
//
//     Context - Provides a general context parameter to be passed to the
//         DPC routine.
//
// Return Value:
//
//     None.
//
//--

#define IoRequestDpc( DeviceObject, Irp, Context ) ( \
    KeInsertQueueDpc( &(DeviceObject)->Dpc, (Irp), (Context) ) )

//++
//
// PDRIVER_CANCEL
// IoSetCancelRoutine(
//     IN PIRP Irp,
//     IN PDRIVER_CANCEL CancelRoutine
//     )
//
// Routine Description:
//
//     This routine is invoked to set the address of a cancel routine which
//     is to be invoked when an I/O packet has been canceled.
//
// Arguments:
//
//     Irp - Pointer to the I/O Request Packet itself.
//
//     CancelRoutine - Address of the cancel routine that is to be invoked
//         if the IRP is cancelled.
//
// Return Value:
//
//     Previous value of CancelRoutine field in the IRP.
//
//--

#define IoSetCancelRoutine( Irp, NewCancelRoutine ) (  \
    (PDRIVER_CANCEL) InterlockedExchange( (PLONG) &(Irp)->CancelRoutine, (LONG) (NewCancelRoutine) ) )

//++
//
// VOID
// IoSetCompletionRoutine(
//     IN PIRP Irp,
//     IN PIO_COMPLETION_ROUTINE CompletionRoutine,
//     IN PVOID Context,
//     IN BOOLEAN InvokeOnSuccess,
//     IN BOOLEAN InvokeOnError,
//     IN BOOLEAN InvokeOnCancel
//     )
//
// Routine Description:
//
//     This routine is invoked to set the address of a completion routine which
//     is to be invoked when an I/O packet has been completed by a lower-level
//     driver.
//
// Arguments:
//
//     Irp - Pointer to the I/O Request Packet itself.
//
//     CompletionRoutine - Address of the completion routine that is to be
//         invoked once the next level driver completes the packet.
//
//     Context - Specifies a context parameter to be passed to the completion
//         routine.
//
//     InvokeOnSuccess - Specifies that the completion routine is invoked when the
//         operation is successfully completed.
//
//     InvokeOnError - Specifies that the completion routine is invoked when the
//         operation completes with an error status.
//
//     InvokeOnCancel - Specifies that the completion routine is invoked when the
//         operation is being canceled.
//
// Return Value:
//
//     None.
//
//--

#define IoSetCompletionRoutine( Irp, Routine, CompletionContext, Success, Error, Cancel ) { \
    PIO_STACK_LOCATION irpSp;                                               \
    ASSERT( (Success) | (Error) | (Cancel) ? (Routine) != NULL : TRUE );    \
    irpSp = IoGetNextIrpStackLocation( (Irp) );                             \
    irpSp->CompletionRoutine = (Routine);                                   \
    irpSp->Context = (CompletionContext);                                   \
    irpSp->Control = 0;                                                     \
    if ((Success)) { irpSp->Control = SL_INVOKE_ON_SUCCESS; }               \
    if ((Error)) { irpSp->Control |= SL_INVOKE_ON_ERROR; }                  \
    if ((Cancel)) { irpSp->Control |= SL_INVOKE_ON_CANCEL; } }


//++
//
// VOID
// IoSetNextIrpStackLocation (
//     IN OUT PIRP Irp
//     )
//
// Routine Description:
//
//     This routine is invoked to set the current IRP stack location to
//     the next stack location, i.e. it "pushes" the stack.
//
// Arguments:
//
//     Irp - Pointer to the I/O Request Packet (IRP).
//
// Return Value:
//
//     None.
//
//--

#define IoSetNextIrpStackLocation( Irp ) {      \
    (Irp)->CurrentLocation--;                   \
    (Irp)->Tail.Overlay.CurrentStackLocation--; }

//++
//
// VOID
// IoCopyCurrentIrpStackLocationToNext(
//     IN PIRP Irp
//     )
//
// Routine Description:
//
//     This routine is invoked to copy the IRP stack arguments and file
//     pointer from the current IrpStackLocation to the next
//     in an I/O Request Packet (IRP).
//
//     If the caller wants to call IoCallDriver with a completion routine
//     but does not wish to change the arguments otherwise,
//     the caller first calls IoCopyCurrentIrpStackLocationToNext,
//     then IoSetCompletionRoutine, then IoCallDriver.
//
// Arguments:
//
//     Irp - Pointer to the I/O Request Packet.
//
// Return Value:
//
//     None.
//
//--

#define IoCopyCurrentIrpStackLocationToNext( Irp ) { \
    PIO_STACK_LOCATION irpSp; \
    PIO_STACK_LOCATION nextIrpSp; \
    irpSp = IoGetCurrentIrpStackLocation( (Irp) ); \
    nextIrpSp = IoGetNextIrpStackLocation( (Irp) ); \
    RtlCopyMemory( nextIrpSp, irpSp, FIELD_OFFSET(IO_STACK_LOCATION, CompletionRoutine)); \
    nextIrpSp->Control = 0; }

//++
//
// VOID
// IoSkipCurrentIrpStackLocation (
//     IN PIRP Irp
//     )
//
// Routine Description:
//
//     This routine is invoked to increment the current stack location of
//     a given IRP.
//
//     If the caller wishes to call the next driver in a stack, and does not
//     wish to change the arguments, nor does he wish to set a completion
//     routine, then the caller first calls IoSkipCurrentIrpStackLocation
//     and the calls IoCallDriver.
//
// Arguments:
//
//     Irp - Pointer to the I/O Request Packet.
//
// Return Value:
//
//     None
//
//--

#define IoSkipCurrentIrpStackLocation( Irp ) \
    (Irp)->CurrentLocation++; \
    (Irp)->Tail.Overlay.CurrentStackLocation++;


NTKERNELAPI
VOID
IoSetShareAccess(
    IN ACCESS_MASK DesiredAccess,
    IN ULONG DesiredShareAccess,
    IN OUT PFILE_OBJECT FileObject,
    OUT PSHARE_ACCESS ShareAccess
    );


//++
//
// USHORT
// IoSizeOfIrp(
//     IN CCHAR StackSize
//     )
//
// Routine Description:
//
//     Determines the size of an IRP given the number of stack locations
//     the IRP will have.
//
// Arguments:
//
//     StackSize - Number of stack locations for the IRP.
//
// Return Value:
//
//     Size in bytes of the IRP.
//
//--

#define IoSizeOfIrp( StackSize ) \
    ((USHORT) (sizeof( IRP ) + ((StackSize) * (sizeof( IO_STACK_LOCATION )))))



NTKERNELAPI
VOID
IoStartNextPacket(
    IN PDEVICE_OBJECT DeviceObject,
    IN BOOLEAN Cancelable
    );

NTKERNELAPI
VOID
IoStartNextPacketByKey(
    IN PDEVICE_OBJECT DeviceObject,
    IN BOOLEAN Cancelable,
    IN ULONG Key
    );

NTKERNELAPI
VOID
IoStartPacket(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp,
    IN PULONG Key OPTIONAL,
    IN PDRIVER_CANCEL CancelFunction OPTIONAL
    );



NTKERNELAPI
VOID
IoStartTimer(
    IN PDEVICE_OBJECT DeviceObject
    );

NTKERNELAPI
VOID
IoStopTimer(
    IN PDEVICE_OBJECT DeviceObject
    );


NTKERNELAPI
VOID
IoUnregisterShutdownNotification(
    IN PDEVICE_OBJECT DeviceObject
    );

NTKERNELAPI                                     
VOID                                            
IoWriteErrorLogEntry(                           
    IN PVOID ElEntry                            
    );                                          

NTKERNELAPI
NTSTATUS
IoWMIRegistrationControl(
    IN PDEVICE_OBJECT DeviceObject,
    IN ULONG Action
);

//
// Action code for IoWMIRetgistrationControl api
//

#define WMIREG_ACTION_REGISTER      1
#define WMIREG_ACTION_DEREGISTER    2
#define WMIREG_ACTION_REREGISTER    3
#define WMIREG_ACTION_UPDATE_GUIDS  4

//
// Code passed in IRP_MN_REGINFO WMI irp
//

#define WMIREGISTER                 0
#define WMIUPDATE                   1

NTKERNELAPI
NTSTATUS
IoWMIAllocateInstanceIds(
    IN GUID *Guid,
    IN ULONG InstanceCount,
    OUT ULONG *FirstInstanceId
    );

NTKERNELAPI
NTSTATUS
IoWMISuggestInstanceName(
    IN PDEVICE_OBJECT PhysicalDeviceObject OPTIONAL,
    IN PUNICODE_STRING SymbolicLinkName OPTIONAL,
    IN BOOLEAN CombineNames,
    OUT PUNICODE_STRING SuggestedInstanceName
    );

NTKERNELAPI
NTSTATUS
IoWMIWriteEvent(
    IN PVOID WnodeEventItem
    );

//
// Define the device description structure.
//

typedef struct _DEVICE_DESCRIPTION {
    ULONG Version;
    BOOLEAN Master;
    BOOLEAN ScatterGather;
    BOOLEAN DemandMode;
    BOOLEAN AutoInitialize;
    BOOLEAN Dma32BitAddresses;
    BOOLEAN IgnoreCount;
    BOOLEAN Reserved1;          // must be false
    BOOLEAN Dma64BitAddresses;
    ULONG DoNotUse2;
    ULONG DmaChannel;
    INTERFACE_TYPE  InterfaceType;
    DMA_WIDTH DmaWidth;
    DMA_SPEED DmaSpeed;
    ULONG MaximumLength;
    ULONG DmaPort;
} DEVICE_DESCRIPTION, *PDEVICE_DESCRIPTION;

//
// Define the supported version numbers for the device description structure.
//

#define DEVICE_DESCRIPTION_VERSION  0
#define DEVICE_DESCRIPTION_VERSION1 1

                                                
NTHALAPI                                        
VOID                                            
KeFlushWriteBuffer (                            
    VOID                                        
    );                                          
                                                
//
// Performance counter function.
//

NTHALAPI
LARGE_INTEGER
KeQueryPerformanceCounter (
   IN PLARGE_INTEGER PerformanceFrequency OPTIONAL
   );


//
// Stall processor execution function.
//

NTHALAPI
VOID
KeStallExecutionProcessor (
    IN ULONG MicroSeconds
    );


typedef struct _SCATTER_GATHER_ELEMENT {
    PHYSICAL_ADDRESS Address;
    ULONG Length;
    ULONG Reserved;
} SCATTER_GATHER_ELEMENT, *PSCATTER_GATHER_ELEMENT;

#pragma warning(disable:4200)
typedef struct _SCATTER_GATHER_LIST {
    ULONG NumberOfElements;
    ULONG Reserved;
    SCATTER_GATHER_ELEMENT Elements[];
} SCATTER_GATHER_LIST, *PSCATTER_GATHER_LIST;
#pragma warning(default:4200)

typedef struct _DMA_OPERATIONS *PDMA_OPERATIONS;

typedef struct _DMA_ADAPTER {
    USHORT Version;
    USHORT Size;
    PDMA_OPERATIONS DmaOperations;
    // Private Bus Device Driver data follows,
} DMA_ADAPTER, *PDMA_ADAPTER;

typedef VOID (*PPUT_DMA_ADAPTER)(
    PDMA_ADAPTER DmaAdapter
    );

typedef PVOID (*PALLOCATE_COMMON_BUFFER)(
    IN PDMA_ADAPTER DmaAdapter,
    IN ULONG Length,
    OUT PPHYSICAL_ADDRESS LogicalAddress,
    IN BOOLEAN CacheEnabled
    );

typedef VOID (*PFREE_COMMON_BUFFER)(
    IN PDMA_ADAPTER DmaAdapter,
    IN ULONG Length,
    IN PHYSICAL_ADDRESS LogicalAddress,
    IN PVOID VirtualAddress,
    IN BOOLEAN CacheEnabled
    );

typedef NTSTATUS (*PALLOCATE_ADAPTER_CHANNEL)(
    IN PDMA_ADAPTER DmaAdapter,
    IN PDEVICE_OBJECT DeviceObject,
    IN ULONG NumberOfMapRegisters,
    IN PDRIVER_CONTROL ExecutionRoutine,
    IN PVOID Context
    );

typedef BOOLEAN (*PFLUSH_ADAPTER_BUFFERS)(
    IN PDMA_ADAPTER DmaAdapter,
    IN PMDL Mdl,
    IN PVOID MapRegisterBase,
    IN PVOID CurrentVa,
    IN ULONG Length,
    IN BOOLEAN WriteToDevice
    );

typedef VOID (*PFREE_ADAPTER_CHANNEL)(
    IN PDMA_ADAPTER DmaAdapter
    );

typedef VOID (*PFREE_MAP_REGISTERS)(
    IN PDMA_ADAPTER DmaAdapter,
    PVOID MapRegisterBase,
    ULONG NumberOfMapRegisters
    );

typedef PHYSICAL_ADDRESS (*PMAP_TRANSFER)(
    IN PDMA_ADAPTER DmaAdapter,
    IN PMDL Mdl,
    IN PVOID MapRegisterBase,
    IN PVOID CurrentVa,
    IN OUT PULONG Length,
    IN BOOLEAN WriteToDevice
    );

typedef ULONG (*PGET_DMA_ALIGNMENT)(
    IN PDMA_ADAPTER DmaAdapter
    );

typedef ULONG (*PREAD_DMA_COUNTER)(
    IN PDMA_ADAPTER DmaAdapter
    );

typedef VOID
(*PDRIVER_LIST_CONTROL)(
    IN struct _DEVICE_OBJECT *DeviceObject,
    IN struct _IRP *Irp,
    IN PSCATTER_GATHER_LIST ScatterGather,
    IN PVOID Context
    );

typedef NTSTATUS
(*PGET_SCATTER_GATHER_LIST)(
    IN PDMA_ADAPTER DmaAdapter,
    IN PDEVICE_OBJECT DeviceObject,
    IN PMDL Mdl,
    IN PVOID CurrentVa,
    IN ULONG Length,
    IN PDRIVER_LIST_CONTROL ExecutionRoutine,
    IN PVOID Context,
    IN BOOLEAN WriteToDevice
    );

typedef VOID
(*PPUT_SCATTER_GATHER_LIST)(
    IN PDMA_ADAPTER DmaAdapter,
    IN PSCATTER_GATHER_LIST ScatterGather,
    IN BOOLEAN WriteToDevice
    );

typedef struct _DMA_OPERATIONS {
    ULONG Size;
    PPUT_DMA_ADAPTER PutDmaAdapter;
    PALLOCATE_COMMON_BUFFER AllocateCommonBuffer;
    PFREE_COMMON_BUFFER FreeCommonBuffer;
    PALLOCATE_ADAPTER_CHANNEL AllocateAdapterChannel;
    PFLUSH_ADAPTER_BUFFERS FlushAdapterBuffers;
    PFREE_ADAPTER_CHANNEL FreeAdapterChannel;
    PFREE_MAP_REGISTERS FreeMapRegisters;
    PMAP_TRANSFER MapTransfer;
    PGET_DMA_ALIGNMENT GetDmaAlignment;
    PREAD_DMA_COUNTER ReadDmaCounter;
    PGET_SCATTER_GATHER_LIST GetScatterGatherList;
    PPUT_SCATTER_GATHER_LIST PutScatterGatherList;
} DMA_OPERATIONS;


__inline
PVOID
HalAllocateCommonBuffer(
    IN PDMA_ADAPTER DmaAdapter,
    IN ULONG Length,
    OUT PPHYSICAL_ADDRESS LogicalAddress,
    IN BOOLEAN CacheEnabled
    ){

    PALLOCATE_COMMON_BUFFER allocateCommonBuffer;
    PVOID commonBuffer;

    allocateCommonBuffer = *(DmaAdapter)->DmaOperations->AllocateCommonBuffer;
    ASSERT( allocateCommonBuffer != NULL );

    commonBuffer = allocateCommonBuffer( DmaAdapter,
                                         Length,
                                         LogicalAddress,
                                         CacheEnabled );

    return commonBuffer;
}

__inline
VOID
HalFreeCommonBuffer(
    IN PDMA_ADAPTER DmaAdapter,
    IN ULONG Length,
    IN PHYSICAL_ADDRESS LogicalAddress,
    IN PVOID VirtualAddress,
    IN BOOLEAN CacheEnabled
    ){

    PFREE_COMMON_BUFFER freeCommonBuffer;

    freeCommonBuffer = *(DmaAdapter)->DmaOperations->FreeCommonBuffer;
    ASSERT( freeCommonBuffer != NULL );

    freeCommonBuffer( DmaAdapter,
                      Length,
                      LogicalAddress,
                      VirtualAddress,
                      CacheEnabled );
}

__inline
NTSTATUS
IoAllocateAdapterChannel(
    IN PDMA_ADAPTER DmaAdapter,
    IN PDEVICE_OBJECT DeviceObject,
    IN ULONG NumberOfMapRegisters,
    IN PDRIVER_CONTROL ExecutionRoutine,
    IN PVOID Context
    ){

    PALLOCATE_ADAPTER_CHANNEL allocateAdapterChannel;
    NTSTATUS status;

    allocateAdapterChannel =
        *(DmaAdapter)->DmaOperations->AllocateAdapterChannel;

    ASSERT( allocateAdapterChannel != NULL );

    status = allocateAdapterChannel( DmaAdapter,
                                     DeviceObject,
                                     NumberOfMapRegisters,
                                     ExecutionRoutine,
                                     Context );

    return status;
}

__inline
BOOLEAN
IoFlushAdapterBuffers(
    IN PDMA_ADAPTER DmaAdapter,
    IN PMDL Mdl,
    IN PVOID MapRegisterBase,
    IN PVOID CurrentVa,
    IN ULONG Length,
    IN BOOLEAN WriteToDevice
    ){

    PFLUSH_ADAPTER_BUFFERS flushAdapterBuffers;
    BOOLEAN result;

    flushAdapterBuffers = *(DmaAdapter)->DmaOperations->FlushAdapterBuffers;
    ASSERT( flushAdapterBuffers != NULL );

    result = flushAdapterBuffers( DmaAdapter,
                                  Mdl,
                                  MapRegisterBase,
                                  CurrentVa,
                                  Length,
                                  WriteToDevice );
    return result;
}

__inline
VOID
IoFreeAdapterChannel(
    IN PDMA_ADAPTER DmaAdapter
    ){

    PFREE_ADAPTER_CHANNEL freeAdapterChannel;

    freeAdapterChannel = *(DmaAdapter)->DmaOperations->FreeAdapterChannel;
    ASSERT( freeAdapterChannel != NULL );

    freeAdapterChannel( DmaAdapter );
}

__inline
VOID
IoFreeMapRegisters(
    IN PDMA_ADAPTER DmaAdapter,
    IN PVOID MapRegisterBase,
    IN ULONG NumberOfMapRegisters
    ){

    PFREE_MAP_REGISTERS freeMapRegisters;

    freeMapRegisters = *(DmaAdapter)->DmaOperations->FreeMapRegisters;
    ASSERT( freeMapRegisters != NULL );

    freeMapRegisters( DmaAdapter,
                      MapRegisterBase,
                      NumberOfMapRegisters );
}


__inline
PHYSICAL_ADDRESS
IoMapTransfer(
    IN PDMA_ADAPTER DmaAdapter,
    IN PMDL Mdl,
    IN PVOID MapRegisterBase,
    IN PVOID CurrentVa,
    IN OUT PULONG Length,
    IN BOOLEAN WriteToDevice
    ){

    PHYSICAL_ADDRESS physicalAddress;
    PMAP_TRANSFER mapTransfer;

    mapTransfer = *(DmaAdapter)->DmaOperations->MapTransfer;
    ASSERT( mapTransfer != NULL );

    physicalAddress = mapTransfer( DmaAdapter,
                                   Mdl,
                                   MapRegisterBase,
                                   CurrentVa,
                                   Length,
                                   WriteToDevice );

    return physicalAddress;
}

__inline
ULONG
HalGetDmaAlignment(
    IN PDMA_ADAPTER DmaAdapter
    )
{
    PGET_DMA_ALIGNMENT getDmaAlignment;
    ULONG alignment;

    getDmaAlignment = *(DmaAdapter)->DmaOperations->GetDmaAlignment;
    ASSERT( getDmaAlignment != NULL );

    alignment = getDmaAlignment( DmaAdapter );
    return alignment;
}

__inline
ULONG
HalReadDmaCounter(
    IN PDMA_ADAPTER DmaAdapter
    )
{
    PREAD_DMA_COUNTER readDmaCounter;
    ULONG counter;

    readDmaCounter = *(DmaAdapter)->DmaOperations->ReadDmaCounter;
    ASSERT( readDmaCounter != NULL );

    counter = readDmaCounter( DmaAdapter );
    return counter;
}


#define MAX_CLASS_NAME_LEN 32

//
// Define PnP Device Property for IoGetDeviceProperty
//

typedef enum {
    DevicePropertyDeviceDescription,
    DevicePropertyHardwareID,
    DevicePropertyCompatibleIDs,
    DevicePropertyBootConfiguration,
    DevicePropertyBootConfigurationTranslated,
    DevicePropertyClassName,
    DevicePropertyClassGuid,
    DevicePropertyDriverKeyName,
    DevicePropertyManufacturer,
    DevicePropertyFriendlyName,
    DevicePropertyLocationInformation,
    DevicePropertyPhysicalDeviceObjectName,
    DevicePropertyBusTypeGuid,
    DevicePropertyLegacyBusType,
    DevicePropertyBusNumber,
    DevicePropertyEnumeratorName
} DEVICE_REGISTRY_PROPERTY;

typedef BOOLEAN (*PTRANSLATE_BUS_ADDRESS)(
    IN PVOID Context,
    IN PHYSICAL_ADDRESS BusAddress,
    IN ULONG Length,
    IN OUT PULONG AddressSpace,
    OUT PPHYSICAL_ADDRESS TranslatedAddress
    );

typedef struct _DMA_ADAPTER *(*PGET_DMA_ADAPTER)(
    IN PVOID Context,
    IN struct _DEVICE_DESCRIPTION *DeviceDescriptor,
    OUT PULONG NumberOfMapRegisters
    );

typedef ULONG (*PGET_SET_DEVICE_DATA)(
    IN PVOID Context,
    IN ULONG DataType,
    IN PVOID Buffer,
    IN ULONG Offset,
    IN ULONG Length
    );

//
// Define structure returned in response to IRP_MN_QUERY_BUS_INFORMATION by a
// PDO indicating the type of bus the device exists on.
//

typedef struct _PNP_BUS_INFORMATION {
    GUID BusTypeGuid;
    INTERFACE_TYPE LegacyBusType;
    ULONG BusNumber;
} PNP_BUS_INFORMATION, *PPNP_BUS_INFORMATION;

typedef struct _BUS_INTERFACE_STANDARD {
    //
    // generic interface header
    //
    USHORT Size;
    USHORT Version;
    PVOID Context;
    PINTERFACE_REFERENCE InterfaceReference;
    PINTERFACE_DEREFERENCE InterfaceDereference;
    //
    // standard bus interfaces
    //
    PTRANSLATE_BUS_ADDRESS TranslateBusAddress;
    PGET_DMA_ADAPTER GetDmaAdapter;
    PGET_SET_DEVICE_DATA SetBusData;
    PGET_SET_DEVICE_DATA GetBusData;

} BUS_INTERFACE_STANDARD, *PBUS_INTERFACE_STANDARD;

//
// The following definitions are used in ACPI QueryInterface
//
typedef BOOLEAN (* PGPE_SERVICE_ROUTINE) (
                            PVOID,
                            PVOID);

typedef NTSTATUS (* PGPE_CONNECT_VECTOR) (
                            PDEVICE_OBJECT,
                            ULONG,
                            KINTERRUPT_MODE,
                            BOOLEAN,
                            PGPE_SERVICE_ROUTINE,
                            PVOID,
                            PVOID);

typedef NTSTATUS (* PGPE_DISCONNECT_VECTOR) (
                            PVOID);

typedef NTSTATUS (* PGPE_ENABLE_EVENT) (
                            PDEVICE_OBJECT,
                            PVOID);

typedef NTSTATUS (* PGPE_DISABLE_EVENT) (
                            PDEVICE_OBJECT,
                            PVOID);

typedef NTSTATUS (* PGPE_CLEAR_STATUS) (
                            PDEVICE_OBJECT,
                            PVOID);

typedef VOID (* PDEVICE_NOTIFY_CALLBACK) (
                            PVOID,
                            ULONG);

typedef NTSTATUS (* PREGISTER_FOR_DEVICE_NOTIFICATIONS) (
                            PDEVICE_OBJECT,
                            PDEVICE_NOTIFY_CALLBACK,
                            PVOID);

typedef void (* PUNREGISTER_FOR_DEVICE_NOTIFICATIONS) (
                            PDEVICE_OBJECT,
                            PDEVICE_NOTIFY_CALLBACK);

typedef struct _ACPI_INTERFACE_STANDARD {
    //
    // Generic interface header
    //
    USHORT                  Size;
    USHORT                  Version;
    PVOID                   Context;
    PINTERFACE_REFERENCE    InterfaceReference;
    PINTERFACE_DEREFERENCE  InterfaceDereference;
    //
    // ACPI interfaces
    //
    PGPE_CONNECT_VECTOR                     GpeConnectVector;
    PGPE_DISCONNECT_VECTOR                  GpeDisconnectVector;
    PGPE_ENABLE_EVENT                       GpeEnableEvent;
    PGPE_DISABLE_EVENT                      GpeDisableEvent;
    PGPE_CLEAR_STATUS                       GpeClearStatus;
    PREGISTER_FOR_DEVICE_NOTIFICATIONS      RegisterForDeviceNotifications;
    PUNREGISTER_FOR_DEVICE_NOTIFICATIONS    UnregisterForDeviceNotifications;

} ACPI_INTERFACE_STANDARD, *PACPI_INTERFACE_STANDARD;


#ifndef GUID_DEFINED
#define GUID_DEFINED
typedef struct _GUID
{
    unsigned long Data1;
    unsigned short Data2;
    unsigned short Data3;
    unsigned char Data4[8];
} GUID;
#endif /* GUID_DEFINED */

#ifndef __LPGUID_DEFINED__
#define __LPGUID_DEFINED__
typedef GUID *LPGUID;
#endif

#ifndef __LPCGUID_DEFINED__
#define __LPCGUID_DEFINED__
typedef CONST GUID *LPCGUID;
#endif


NTKERNELAPI
VOID
IoInvalidateDeviceRelations(
    IN PDEVICE_OBJECT DeviceObject,
    IN DEVICE_RELATION_TYPE Type
    );

NTKERNELAPI
VOID
IoRequestDeviceEject(
    IN PDEVICE_OBJECT PhysicalDeviceObject
    );

NTKERNELAPI
NTSTATUS
IoGetDeviceProperty(
    IN PDEVICE_OBJECT DeviceObject,
    IN DEVICE_REGISTRY_PROPERTY DeviceProperty,
    IN ULONG BufferLength,
    OUT PVOID PropertyBuffer,
    OUT PULONG ResultLength
    );

//
// The following definitions are used in IoOpenDeviceRegistryKey
//

#define PLUGPLAY_REGKEY_DEVICE  1
#define PLUGPLAY_REGKEY_DRIVER  2
#define PLUGPLAY_REGKEY_CURRENT_HWPROFILE 4

NTKERNELAPI
NTSTATUS
IoOpenDeviceRegistryKey(
    IN PDEVICE_OBJECT DeviceObject,
    IN ULONG DevInstKeyType,
    IN ACCESS_MASK DesiredAccess,
    OUT PHANDLE DevInstRegKey
    );

NTKERNELAPI
NTSTATUS
NTAPI
IoRegisterDeviceInterface(
    IN PDEVICE_OBJECT PhysicalDeviceObject,
    IN CONST GUID *InterfaceClassGuid,
    IN PUNICODE_STRING ReferenceString,     OPTIONAL
    OUT PUNICODE_STRING SymbolicLinkName
    );

NTKERNELAPI
NTSTATUS
IoOpenDeviceInterfaceRegistryKey(
    IN PUNICODE_STRING SymbolicLinkName,
    IN ACCESS_MASK DesiredAccess,
    OUT PHANDLE DeviceInterfaceKey
    );


NTKERNELAPI
NTSTATUS
IoSetDeviceInterfaceState(
    IN PUNICODE_STRING SymbolicLinkName,
    IN BOOLEAN Enable
    );


NTKERNELAPI
NTSTATUS
NTAPI
IoGetDeviceInterfaces(
    IN CONST GUID *InterfaceClassGuid,
    IN PDEVICE_OBJECT PhysicalDeviceObject OPTIONAL,
    IN ULONG Flags,
    OUT PWSTR *SymbolicLinkList
    );

#define DEVICE_INTERFACE_INCLUDE_NONACTIVE   0x00000001

NTKERNELAPI
NTSTATUS
NTAPI
IoGetDeviceInterfaceAlias(
    IN PUNICODE_STRING SymbolicLinkName,
    IN CONST GUID *AliasInterfaceClassGuid,
    OUT PUNICODE_STRING AliasSymbolicLinkName
    );


//
// Define PnP notification event categories
//

typedef enum _IO_NOTIFICATION_EVENT_CATEGORY {
    EventCategoryReserved,
    EventCategoryHardwareProfileChange,
    EventCategoryDeviceInterfaceChange,
    EventCategoryTargetDeviceChange
} IO_NOTIFICATION_EVENT_CATEGORY;

//
// Define flags that modify the behavior of IoRegisterPlugPlayNotification
// for the various event categories...
//

#define PNPNOTIFY_DEVICE_INTERFACE_INCLUDE_EXISTING_INTERFACES    0x00000001

typedef
NTSTATUS
(*PDRIVER_NOTIFICATION_CALLBACK_ROUTINE) (
    IN PVOID NotificationStructure,
    IN PVOID Context
);

//
// Header structure for all Plug&Play notification events...
//

typedef struct _PLUGPLAY_NOTIFICATION_HEADER {
    USHORT Version; // presently at version 1.
    USHORT Size;    // size (in bytes) of header + event-specific data.
    GUID Event;
    //
    // Event-specific stuff starts here.
    //
} PLUGPLAY_NOTIFICATION_HEADER, *PPLUGPLAY_NOTIFICATION_HEADER;

//
// Notification structure for all EventCategoryHardwareProfileChange events...
//

typedef struct _HWPROFILE_CHANGE_NOTIFICATION {
    USHORT Version;
    USHORT Size;
    GUID Event;
    //
    // (No event-specific data)
    //
} HWPROFILE_CHANGE_NOTIFICATION, *PHWPROFILE_CHANGE_NOTIFICATION;


//
// Notification structure for all EventCategoryDeviceInterfaceChange events...
//

typedef struct _DEVICE_INTERFACE_CHANGE_NOTIFICATION {
    USHORT Version;
    USHORT Size;
    GUID Event;
    //
    // Event-specific data
    //
    GUID InterfaceClassGuid;
    PUNICODE_STRING SymbolicLinkName;
} DEVICE_INTERFACE_CHANGE_NOTIFICATION, *PDEVICE_INTERFACE_CHANGE_NOTIFICATION;


//
// Notification structures for EventCategoryTargetDeviceChange...
//

//
// The following structure is used for TargetDeviceQueryRemove,
// TargetDeviceRemoveCancelled, and TargetDeviceRemoveComplete:
//
typedef struct _TARGET_DEVICE_REMOVAL_NOTIFICATION {
    USHORT Version;
    USHORT Size;
    GUID Event;
    //
    // Event-specific data
    //
    PFILE_OBJECT FileObject;
} TARGET_DEVICE_REMOVAL_NOTIFICATION, *PTARGET_DEVICE_REMOVAL_NOTIFICATION;

//
// The following structure header is used for all other (i.e., 3rd-party)
// target device change events.  The structure accommodates both a
// variable-length binary data buffer, and a variable-length unicode text
// buffer.  The header must indicate where the text buffer begins, so that
// the data can be delivered in the appropriate format (ANSI or Unicode)
// to user-mode recipients (i.e., that have registered for handle-based
// notification via RegisterDeviceNotification).
//

typedef struct _TARGET_DEVICE_CUSTOM_NOTIFICATION {
    USHORT Version;
    USHORT Size;
    GUID Event;
    //
    // Event-specific data
    //
    PFILE_OBJECT FileObject;    // This field must be set to NULL by callers of
                                // IoReportTargetDeviceChange.  Clients that
                                // have registered for target device change
                                // notification on the affected PDO will be
                                // called with this field set to the file object
                                // they specified during registration.
                                //
    LONG NameBufferOffset;      // offset (in bytes) from beginning of
                                // CustomDataBuffer where text begins (-1 if none)
                                //
    UCHAR CustomDataBuffer[1];  // variable-length buffer, containing (optionally)
                                // a binary data at the start of the buffer,
                                // followed by an optional unicode text buffer
                                // (word-aligned).
                                //
} TARGET_DEVICE_CUSTOM_NOTIFICATION, *PTARGET_DEVICE_CUSTOM_NOTIFICATION;

NTKERNELAPI
NTSTATUS
IoRegisterPlugPlayNotification(
    IN IO_NOTIFICATION_EVENT_CATEGORY EventCategory,
    IN ULONG EventCategoryFlags,
    IN PVOID EventCategoryData OPTIONAL,
    IN PDRIVER_OBJECT DriverObject,
    IN PDRIVER_NOTIFICATION_CALLBACK_ROUTINE CallbackRoutine,
    IN PVOID Context,
    OUT PVOID *NotificationEntry
    );

NTKERNELAPI
NTSTATUS
IoUnregisterPlugPlayNotification(
    IN PVOID NotificationEntry
    );

NTKERNELAPI
NTSTATUS
IoReportTargetDeviceChange(
    IN PDEVICE_OBJECT PhysicalDeviceObject,
    IN PVOID NotificationStructure  // always begins with a PLUGPLAY_NOTIFICATION_HEADER
    );

NTKERNELAPI
VOID
IoInvalidateDeviceState(
    IN PDEVICE_OBJECT PhysicalDeviceObject
    );

#define IoAdjustPagingPathCount(_count_,_paging_) {     \
    if (_paging_) {                                     \
        InterlockedIncrement(_count_);                  \
    } else {                                            \
        InterlockedDecrement(_count_);                  \
    }                                                   \
}


NTKERNELAPI
VOID
PoSetSystemState (
    IN EXECUTION_STATE Flags
    );

NTKERNELAPI
PVOID
PoRegisterSystemState (
    IN PVOID StateHandle,
    IN EXECUTION_STATE Flags
    );

typedef
VOID
(*PREQUEST_POWER_COMPLETE) (
    IN PDEVICE_OBJECT DeviceObject,
    IN UCHAR MinorFunction,
    IN POWER_STATE PowerState,
    IN PVOID Context,
    IN PIO_STATUS_BLOCK IoStatus
    );

NTKERNELAPI
NTSTATUS
PoRequestPowerIrp (
    IN PDEVICE_OBJECT DeviceObject,
    IN UCHAR MinorFunction,
    IN POWER_STATE PowerState,
    IN PREQUEST_POWER_COMPLETE CompletionFunction,
    IN PVOID Context,
    OUT PIRP *Irp OPTIONAL
    );

NTKERNELAPI
VOID
PoUnregisterSystemState (
    IN PVOID StateHandle
    );


typedef
VOID
(*PPO_NOTIFY) (
    IN PDEVICE_OBJECT   DeviceObject,
    IN PVOID            Context,
    IN ULONG            Type,
    IN ULONG            Reserved
    );

#define PO_NOTIFY_D0                        0x00000001
#define PO_NOTIFY_TRANSITIONING_FROM_D0     0x00000002
#define PO_NOTIFY_INVALID                   0x80000000

NTKERNELAPI
NTSTATUS
PoRegisterDeviceNotify (
    IN PDEVICE_OBJECT   DeviceObject,
    IN PPO_NOTIFY       NotificationFunction,
    IN PVOID            NotificationContext,
    IN ULONG            NotificationType,
    OUT PDEVICE_POWER_STATE  DeviceState,
    OUT PVOID           *NotificationHandle
    );

NTKERNELAPI
NTSTATUS
PoCancelDeviceNotify (
    IN PVOID            NotificationHandle
    );

NTKERNELAPI
POWER_STATE
PoSetPowerState (
    IN PDEVICE_OBJECT   DeviceObject,
    IN POWER_STATE_TYPE Type,
    IN POWER_STATE      State
    );

NTKERNELAPI
NTSTATUS
PoCallDriver (
    IN PDEVICE_OBJECT   DeviceObject,
    IN OUT PIRP         Irp
    );

NTKERNELAPI
VOID
PoStartNextPowerIrp(
    IN PIRP    Irp
    );


NTKERNELAPI
PULONG
PoRegisterDeviceForIdleDetection (
    IN PDEVICE_OBJECT     DeviceObject,
    IN ULONG              ConservationIdleTime,
    IN ULONG              PerformanceIdleTime,
    IN DEVICE_POWER_STATE State
    );

#define PoSetDeviceBusy(IdlePointer) \
    *IdlePointer = 0

//
// \Callback\PowerState values
//

#define PO_CB_SYSTEM_POWER_POLICY   0
#define PO_CB_AC_STATUS             1
#define PO_CB_BUTTON_COLLISION      2
#define PO_CB_SYSTEM_STATE_LOCK     3


//
// Object Manager types
//

typedef struct _OBJECT_HANDLE_INFORMATION {
    ULONG HandleAttributes;
    ACCESS_MASK GrantedAccess;
} OBJECT_HANDLE_INFORMATION, *POBJECT_HANDLE_INFORMATION;

NTKERNELAPI                                                     
NTSTATUS                                                        
ObReferenceObjectByHandle(                                      
    IN HANDLE Handle,                                           
    IN ACCESS_MASK DesiredAccess,                               
    IN POBJECT_TYPE ObjectType OPTIONAL,                        
    IN KPROCESSOR_MODE AccessMode,                              
    OUT PVOID *Object,                                          
    OUT POBJECT_HANDLE_INFORMATION HandleInformation OPTIONAL   
    );                                                          

#define ObDereferenceObject(a)                                     \
        ObfDereferenceObject(a)

#define ObReferenceObject(Object) ObfReferenceObject(Object)

NTKERNELAPI
VOID
FASTCALL
ObfReferenceObject(
    IN PVOID Object
    );


NTKERNELAPI
NTSTATUS
ObReferenceObjectByPointer(
    IN PVOID Object,
    IN ACCESS_MASK DesiredAccess,
    IN POBJECT_TYPE ObjectType,
    IN KPROCESSOR_MODE AccessMode
    );

NTKERNELAPI
VOID
FASTCALL
ObfDereferenceObject(
    IN PVOID Object
    );


typedef struct _PCI_SLOT_NUMBER {
    union {
        struct {
            ULONG   DeviceNumber:5;
            ULONG   FunctionNumber:3;
            ULONG   Reserved:24;
        } bits;
        ULONG   AsULONG;
    } u;
} PCI_SLOT_NUMBER, *PPCI_SLOT_NUMBER;


#define PCI_TYPE0_ADDRESSES             6
#define PCI_TYPE1_ADDRESSES             2
#define PCI_TYPE2_ADDRESSES             5

typedef struct _PCI_COMMON_CONFIG {
    USHORT  VendorID;                   // (ro)
    USHORT  DeviceID;                   // (ro)
    USHORT  Command;                    // Device control
    USHORT  Status;
    UCHAR   RevisionID;                 // (ro)
    UCHAR   ProgIf;                     // (ro)
    UCHAR   SubClass;                   // (ro)
    UCHAR   BaseClass;                  // (ro)
    UCHAR   CacheLineSize;              // (ro+)
    UCHAR   LatencyTimer;               // (ro+)
    UCHAR   HeaderType;                 // (ro)
    UCHAR   BIST;                       // Built in self test

    union {
        struct _PCI_HEADER_TYPE_0 {
            ULONG   BaseAddresses[PCI_TYPE0_ADDRESSES];
            ULONG   CIS;
            USHORT  SubVendorID;
            USHORT  SubSystemID;
            ULONG   ROMBaseAddress;
            UCHAR   CapabilitiesPtr;
            UCHAR   Reserved1[3];
            ULONG   Reserved2;
            UCHAR   InterruptLine;      //
            UCHAR   InterruptPin;       // (ro)
            UCHAR   MinimumGrant;       // (ro)
            UCHAR   MaximumLatency;     // (ro)
        } type0;


    } u;

    UCHAR   DeviceSpecific[192];

} PCI_COMMON_CONFIG, *PPCI_COMMON_CONFIG;


#define PCI_COMMON_HDR_LENGTH (FIELD_OFFSET (PCI_COMMON_CONFIG, DeviceSpecific))

#define PCI_MAX_DEVICES                     32
#define PCI_MAX_FUNCTION                    8

#define PCI_INVALID_VENDORID                0xFFFF

//
// Bit encodings for  PCI_COMMON_CONFIG.HeaderType
//

#define PCI_MULTIFUNCTION                   0x80
#define PCI_DEVICE_TYPE                     0x00
#define PCI_BRIDGE_TYPE                     0x01
#define PCI_CARDBUS_BRIDGE_TYPE             0x02

//
// Bit encodings for PCI_COMMON_CONFIG.Command
//

#define PCI_ENABLE_IO_SPACE                 0x0001
#define PCI_ENABLE_MEMORY_SPACE             0x0002
#define PCI_ENABLE_BUS_MASTER               0x0004
#define PCI_ENABLE_SPECIAL_CYCLES           0x0008
#define PCI_ENABLE_WRITE_AND_INVALIDATE     0x0010
#define PCI_ENABLE_VGA_COMPATIBLE_PALETTE   0x0020
#define PCI_ENABLE_PARITY                   0x0040  // (ro+)
#define PCI_ENABLE_WAIT_CYCLE               0x0080  // (ro+)
#define PCI_ENABLE_SERR                     0x0100  // (ro+)
#define PCI_ENABLE_FAST_BACK_TO_BACK        0x0200  // (ro)

//
// Bit encodings for PCI_COMMON_CONFIG.Status
//

#define PCI_STATUS_CAPABILITIES_LIST        0x0010  // (ro)
#define PCI_STATUS_66MHZ_CAPABLE            0x0020  // (ro)
#define PCI_STATUS_UDF_SUPPORTED            0x0040  // (ro)
#define PCI_STATUS_FAST_BACK_TO_BACK        0x0080  // (ro)
#define PCI_STATUS_DATA_PARITY_DETECTED     0x0100
#define PCI_STATUS_DEVSEL                   0x0600  // 2 bits wide
#define PCI_STATUS_SIGNALED_TARGET_ABORT    0x0800
#define PCI_STATUS_RECEIVED_TARGET_ABORT    0x1000
#define PCI_STATUS_RECEIVED_MASTER_ABORT    0x2000
#define PCI_STATUS_SIGNALED_SYSTEM_ERROR    0x4000
#define PCI_STATUS_DETECTED_PARITY_ERROR    0x8000

//
// Base Class Code encodings for Base Class (from PCI spec rev 2.1).
//

#define PCI_CLASS_PRE_20                    0x00
#define PCI_CLASS_MASS_STORAGE_CTLR         0x01
#define PCI_CLASS_NETWORK_CTLR              0x02
#define PCI_CLASS_DISPLAY_CTLR              0x03
#define PCI_CLASS_MULTIMEDIA_DEV            0x04
#define PCI_CLASS_MEMORY_CTLR               0x05
#define PCI_CLASS_BRIDGE_DEV                0x06
#define PCI_CLASS_SIMPLE_COMMS_CTLR         0x07
#define PCI_CLASS_BASE_SYSTEM_DEV           0x08
#define PCI_CLASS_INPUT_DEV                 0x09
#define PCI_CLASS_DOCKING_STATION           0x0a
#define PCI_CLASS_PROCESSOR                 0x0b
#define PCI_CLASS_SERIAL_BUS_CTLR           0x0c

// 0d thru fe reserved

#define PCI_CLASS_NOT_DEFINED               0xff

//
// Sub Class Code encodings (PCI rev 2.1).
//

// Class 00 - PCI_CLASS_PRE_20

#define PCI_SUBCLASS_PRE_20_NON_VGA         0x00
#define PCI_SUBCLASS_PRE_20_VGA             0x01

// Class 01 - PCI_CLASS_MASS_STORAGE_CTLR

#define PCI_SUBCLASS_MSC_SCSI_BUS_CTLR      0x00
#define PCI_SUBCLASS_MSC_IDE_CTLR           0x01
#define PCI_SUBCLASS_MSC_FLOPPY_CTLR        0x02
#define PCI_SUBCLASS_MSC_IPI_CTLR           0x03
#define PCI_SUBCLASS_MSC_RAID_CTLR          0x04
#define PCI_SUBCLASS_MSC_OTHER              0x80

// Class 02 - PCI_CLASS_NETWORK_CTLR

#define PCI_SUBCLASS_NET_ETHERNET_CTLR      0x00
#define PCI_SUBCLASS_NET_TOKEN_RING_CTLR    0x01
#define PCI_SUBCLASS_NET_FDDI_CTLR          0x02
#define PCI_SUBCLASS_NET_ATM_CTLR           0x03
#define PCI_SUBCLASS_NET_OTHER              0x80

// Class 03 - PCI_CLASS_DISPLAY_CTLR

// N.B. Sub Class 00 could be VGA or 8514 depending on Interface byte

#define PCI_SUBCLASS_VID_VGA_CTLR           0x00
#define PCI_SUBCLASS_VID_XGA_CTLR           0x01
#define PCI_SUBCLASS_VID_OTHER              0x80

// Class 04 - PCI_CLASS_MULTIMEDIA_DEV

#define PCI_SUBCLASS_MM_VIDEO_DEV           0x00
#define PCI_SUBCLASS_MM_AUDIO_DEV           0x01
#define PCI_SUBCLASS_MM_OTHER               0x80

// Class 05 - PCI_CLASS_MEMORY_CTLR

#define PCI_SUBCLASS_MEM_RAM                0x00
#define PCI_SUBCLASS_MEM_FLASH              0x01
#define PCI_SUBCLASS_MEM_OTHER              0x80

// Class 06 - PCI_CLASS_BRIDGE_DEV

#define PCI_SUBCLASS_BR_HOST                0x00
#define PCI_SUBCLASS_BR_ISA                 0x01
#define PCI_SUBCLASS_BR_EISA                0x02
#define PCI_SUBCLASS_BR_MCA                 0x03
#define PCI_SUBCLASS_BR_PCI_TO_PCI          0x04
#define PCI_SUBCLASS_BR_PCMCIA              0x05
#define PCI_SUBCLASS_BR_NUBUS               0x06
#define PCI_SUBCLASS_BR_CARDBUS             0x07
#define PCI_SUBCLASS_BR_OTHER               0x80

// Class 07 - PCI_CLASS_SIMPLE_COMMS_CTLR

// N.B. Sub Class 00 and 01 additional info in Interface byte

#define PCI_SUBCLASS_COM_SERIAL             0x00
#define PCI_SUBCLASS_COM_PARALLEL           0x01
#define PCI_SUBCLASS_COM_OTHER              0x80

// Class 08 - PCI_CLASS_BASE_SYSTEM_DEV

// N.B. See Interface byte for additional info.

#define PCI_SUBCLASS_SYS_INTERRUPT_CTLR     0x00
#define PCI_SUBCLASS_SYS_DMA_CTLR           0x01
#define PCI_SUBCLASS_SYS_SYSTEM_TIMER       0x02
#define PCI_SUBCLASS_SYS_REAL_TIME_CLOCK    0x03
#define PCI_SUBCLASS_SYS_OTHER              0x80

// Class 09 - PCI_CLASS_INPUT_DEV

#define PCI_SUBCLASS_INP_KEYBOARD           0x00
#define PCI_SUBCLASS_INP_DIGITIZER          0x01
#define PCI_SUBCLASS_INP_MOUSE              0x02
#define PCI_SUBCLASS_INP_OTHER              0x80

// Class 0a - PCI_CLASS_DOCKING_STATION

#define PCI_SUBCLASS_DOC_GENERIC            0x00
#define PCI_SUBCLASS_DOC_OTHER              0x80

// Class 0b - PCI_CLASS_PROCESSOR

#define PCI_SUBCLASS_PROC_386               0x00
#define PCI_SUBCLASS_PROC_486               0x01
#define PCI_SUBCLASS_PROC_PENTIUM           0x02
#define PCI_SUBCLASS_PROC_ALPHA             0x10
#define PCI_SUBCLASS_PROC_POWERPC           0x20
#define PCI_SUBCLASS_PROC_COPROCESSOR       0x40

// Class 0c - PCI_CLASS_SERIAL_BUS_CTLR

#define PCI_SUBCLASS_SB_IEEE1394            0x00
#define PCI_SUBCLASS_SB_ACCESS              0x01
#define PCI_SUBCLASS_SB_SSA                 0x02
#define PCI_SUBCLASS_SB_USB                 0x03
#define PCI_SUBCLASS_SB_FIBRE_CHANNEL       0x04




//
// Bit encodes for PCI_COMMON_CONFIG.u.type0.BaseAddresses
//

#define PCI_ADDRESS_IO_SPACE                0x00000001  // (ro)
#define PCI_ADDRESS_MEMORY_TYPE_MASK        0x00000006  // (ro)
#define PCI_ADDRESS_MEMORY_PREFETCHABLE     0x00000008  // (ro)

#define PCI_ADDRESS_IO_ADDRESS_MASK         0xfffffffc
#define PCI_ADDRESS_MEMORY_ADDRESS_MASK     0xfffffff0
#define PCI_ADDRESS_ROM_ADDRESS_MASK        0xfffff800

#define PCI_TYPE_32BIT      0
#define PCI_TYPE_20BIT      2
#define PCI_TYPE_64BIT      4

//
// Bit encodes for PCI_COMMON_CONFIG.u.type0.ROMBaseAddresses
//

#define PCI_ROMADDRESS_ENABLED              0x00000001


//
// Reference notes for PCI configuration fields:
//
// ro   these field are read only.  changes to these fields are ignored
//
// ro+  these field are intended to be read only and should be initialized
//      by the system to their proper values.  However, driver may change
//      these settings.
//
// ---
//
//      All resources comsumed by a PCI device start as unitialized
//      under NT.  An uninitialized memory or I/O base address can be
//      determined by checking it's corrisponding enabled bit in the
//      PCI_COMMON_CONFIG.Command value.  An InterruptLine is unitialized
//      if it contains the value of -1.
//





#ifdef POOL_TAGGING
#define ExAllocatePool(a,b) ExAllocatePoolWithTag(a,b,' mdW')
#endif

extern POBJECT_TYPE *IoFileObjectType;
extern POBJECT_TYPE *ExEventObjectType;
extern POBJECT_TYPE *ExSemaphoreObjectType;

//
// Define exported ZwXxx routines to device drivers.
//

NTSYSAPI
NTSTATUS
NTAPI
ZwCreateFile(
    OUT PHANDLE FileHandle,
    IN ACCESS_MASK DesiredAccess,
    IN POBJECT_ATTRIBUTES ObjectAttributes,
    OUT PIO_STATUS_BLOCK IoStatusBlock,
    IN PLARGE_INTEGER AllocationSize OPTIONAL,
    IN ULONG FileAttributes,
    IN ULONG ShareAccess,
    IN ULONG CreateDisposition,
    IN ULONG CreateOptions,
    IN PVOID EaBuffer OPTIONAL,
    IN ULONG EaLength
    );

NTSYSAPI
NTSTATUS
NTAPI
ZwQueryInformationFile(
    IN HANDLE FileHandle,
    OUT PIO_STATUS_BLOCK IoStatusBlock,
    OUT PVOID FileInformation,
    IN ULONG Length,
    IN FILE_INFORMATION_CLASS FileInformationClass
    );

NTSYSAPI
NTSTATUS
NTAPI
ZwReadFile(
    IN HANDLE FileHandle,
    IN HANDLE Event OPTIONAL,
    IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,
    IN PVOID ApcContext OPTIONAL,
    OUT PIO_STATUS_BLOCK IoStatusBlock,
    OUT PVOID Buffer,
    IN ULONG Length,
    IN PLARGE_INTEGER ByteOffset OPTIONAL,
    IN PULONG Key OPTIONAL
    );

NTSYSAPI
NTSTATUS
NTAPI
ZwWriteFile(
    IN HANDLE FileHandle,
    IN HANDLE Event OPTIONAL,
    IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,
    IN PVOID ApcContext OPTIONAL,
    OUT PIO_STATUS_BLOCK IoStatusBlock,
    IN PVOID Buffer,
    IN ULONG Length,
    IN PLARGE_INTEGER ByteOffset OPTIONAL,
    IN PULONG Key OPTIONAL
    );

NTSYSAPI
NTSTATUS
NTAPI
ZwClose(
    IN HANDLE Handle
    );

NTSYSAPI
NTSTATUS
NTAPI
ZwCreateDirectoryObject(
    OUT PHANDLE DirectoryHandle,
    IN ACCESS_MASK DesiredAccess,
    IN POBJECT_ATTRIBUTES ObjectAttributes
    );

NTSYSAPI
NTSTATUS
NTAPI
ZwMakeTemporaryObject(
    IN HANDLE Handle
    );

NTSYSAPI
NTSTATUS
NTAPI
ZwOpenSection(
    OUT PHANDLE SectionHandle,
    IN ACCESS_MASK DesiredAccess,
    IN POBJECT_ATTRIBUTES ObjectAttributes
    );

NTSYSAPI
NTSTATUS
NTAPI
ZwMapViewOfSection(
    IN HANDLE SectionHandle,
    IN HANDLE ProcessHandle,
    IN OUT PVOID *BaseAddress,
    IN ULONG ZeroBits,
    IN ULONG CommitSize,
    IN OUT PLARGE_INTEGER SectionOffset OPTIONAL,
    IN OUT PULONG ViewSize,
    IN SECTION_INHERIT InheritDisposition,
    IN ULONG AllocationType,
    IN ULONG Protect
    );

NTSYSAPI
NTSTATUS
NTAPI
ZwUnmapViewOfSection(
    IN HANDLE ProcessHandle,
    IN PVOID BaseAddress
    );

NTSYSAPI
NTSTATUS
NTAPI
ZwCreateKey(
    OUT PHANDLE KeyHandle,
    IN ACCESS_MASK DesiredAccess,
    IN POBJECT_ATTRIBUTES ObjectAttributes,
    IN ULONG TitleIndex,
    IN PUNICODE_STRING Class OPTIONAL,
    IN ULONG CreateOptions,
    OUT PULONG Disposition OPTIONAL
    );

NTSYSAPI
NTSTATUS
NTAPI
ZwOpenKey(
    OUT PHANDLE KeyHandle,
    IN ACCESS_MASK DesiredAccess,
    IN POBJECT_ATTRIBUTES ObjectAttributes
    );

NTSYSAPI
NTSTATUS
NTAPI
ZwDeleteKey(
    IN HANDLE KeyHandle
    );

NTSYSAPI
NTSTATUS
NTAPI
ZwEnumerateKey(
    IN HANDLE KeyHandle,
    IN ULONG Index,
    IN KEY_INFORMATION_CLASS KeyInformationClass,
    OUT PVOID KeyInformation,
    IN ULONG Length,
    OUT PULONG ResultLength
    );

NTSYSAPI
NTSTATUS
NTAPI
ZwEnumerateValueKey(
    IN HANDLE KeyHandle,
    IN ULONG Index,
    IN KEY_VALUE_INFORMATION_CLASS KeyValueInformationClass,
    OUT PVOID KeyValueInformation,
    IN ULONG Length,
    OUT PULONG ResultLength
    );

NTSYSAPI
NTSTATUS
NTAPI
ZwQueryKey(
    IN HANDLE KeyHandle,
    IN KEY_INFORMATION_CLASS KeyInformationClass,
    OUT PVOID KeyInformation,
    IN ULONG Length,
    OUT PULONG ResultLength
    );

NTSYSAPI
NTSTATUS
NTAPI
ZwQueryValueKey(
    IN HANDLE KeyHandle,
    IN PUNICODE_STRING ValueName,
    IN KEY_VALUE_INFORMATION_CLASS KeyValueInformationClass,
    OUT PVOID KeyValueInformation,
    IN ULONG Length,
    OUT PULONG ResultLength
    );

NTSYSAPI
NTSTATUS
NTAPI
ZwSetValueKey(
    IN HANDLE KeyHandle,
    IN PUNICODE_STRING ValueName,
    IN ULONG TitleIndex OPTIONAL,
    IN ULONG Type,
    IN PVOID Data,
    IN ULONG DataSize
    );

#endif // _WDMDDK_
