wmistr.h

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                            //           data
                            // On Return: Size of output data, 0 if no output
                            //            data

    UCHAR VariableData[];
    // instance names and padding so data value begins on 8 byte boundry

    // data item value
} WNODE_METHOD_ITEM, *PWNODE_METHOD_ITEM;

typedef struct tagWNODE_EVENT_ITEM
{
    struct _WNODE_HEADER WnodeHeader;

    // Different data could be here depending upon the flags set in the
    // WNODE_HEADER above. If the WNODE_FLAG_ALL_DATA flag is set then the
    // contents of a WNODE_ALL_DATA  (excluding WNODE_HEADER) is here. If the
    // WNODE_FLAG_SINGLE_INSTANCE flag is set then a WNODE_SINGLE_INSTANCE
    // (excluding WNODE_HEADER) is here. Lastly if the  WNODE_FLAG_SINGLE_ITEM
    // flag is set then a WNODE_SINGLE_ITEM (excluding WNODE_HEADER) is here.
} WNODE_EVENT_ITEM, *PWNODE_EVENT_ITEM;


//
// If a KM data provider needs to fire an event that is larger than the
// maximum size that WMI allows then it should fire a WNODE_EVENT_REFERENCE
// that specifies which guid and instance name to query for the actual data
// that should be part of the event.
typedef struct tagWNODE_EVENT_REFERENCE
{
    struct _WNODE_HEADER WnodeHeader;
    GUID TargetGuid;
    ULONG TargetDataBlockSize;
    union
    {
        ULONG TargetInstanceIndex;
        WCHAR TargetInstanceName[];
    };
} WNODE_EVENT_REFERENCE, *PWNODE_EVENT_REFERENCE;


typedef struct tagWNODE_TOO_SMALL
{
    struct _WNODE_HEADER WnodeHeader;
    ULONG SizeNeeded;                   // Size needed to build WNODE result
} WNODE_TOO_SMALL, *PWNODE_TOO_SMALL;


typedef struct
{
    GUID Guid;             // Guid of data block being registered or updated
    ULONG Flags;         // Flags

    ULONG InstanceCount; // Count of static instances names for the guid

    union
    {
                     // If WMIREG_FLAG_INSTANCE_LIST then this has the offset
                     // to a list of InstanceCount counted UNICODE
                     // strings placed end to end.
        ULONG InstanceNameList;
			
                     // If WMIREG_FLAG_INSTANCE_BASENAME then this has the
                     // offset to a single counted UNICODE string that
                     // has the basename for the instance names.
			
        ULONG BaseNameOffset;
			
                     // If WMIREG_FLAG_INSTANCE_PDO is set then InstanceInfo
                     // has the PDO whose device instance path will
                     // become the instance name
        ULONG_PTR Pdo;
			
                     // If WMIREG_FLAG_INSTANCE_REFERENCE then this points to
                     // a WMIREGINSTANCEREF structure.
			
        ULONG_PTR InstanceInfo;// Offset from beginning of the WMIREGINFO structure to
    };

} WMIREGGUIDW, *PWMIREGGUIDW;

typedef WMIREGGUIDW WMIREGGUID;
typedef PWMIREGGUIDW PWMIREGGUID;

// Set if collection must be enabled for the guid before the data provider
// can be queried for data.
#define WMIREG_FLAG_EXPENSIVE          0x00000001

// Set if instance names for this guid are specified in a static list within
// the WMIREGINFO
#define WMIREG_FLAG_INSTANCE_LIST      0x00000004

// Set if instance names are to be static and generated by WMI using a
// base name in the WMIREGINFO and an index
#define WMIREG_FLAG_INSTANCE_BASENAME  0x00000008

// Set if WMI should do automatic mapping of a PDO to device instance name
// as the instance name for the guid. This flag should only be used by
// kernel mode data providers.
#define WMIREG_FLAG_INSTANCE_PDO       0x00000020

// Note the flags WMIREG_FLAG_INSTANCE_LIST, WMIREG_FLAG_INSTANCE_BASENAME,
// WMIREG_FLAG_INSTANCE_REFERENCE and WMIREG_FLAG_INSTANCE_PDO are mutually
// exclusive.

//
// These flags are only valid in a response to WMI_GUID_REGUPDATE
#define WMIREG_FLAG_REMOVE_GUID       0x00010000 // Remove support for  guid
#define WMIREG_FLAG_RESERVED1         0x00020000 // Reserved by WMI
#define WMIREG_FLAG_RESERVED2         0x00040000 // Reserved by WMI

// Set if guid is one that is written to trace log.
// This guid cannot be queried directly via WMI, but must be read using
// logger apis.
#define WMIREG_FLAG_TRACED_GUID        0x00080000

//
// Only those Trace Guids that have this bit set can receive
// Enable/Disable Notifications.
//
#define WMIREG_FLAG_TRACE_CONTROL_GUID 0x00001000

//
// Set if the guid is only used for firing events. Guids that can be queried
// and that fire events should not have this bit set.
#define WMIREG_FLAG_EVENT_ONLY_GUID    0x00000040

typedef struct
{
// Size of entire WMIREGINFO structure including this ULONG 	
// and any static instance names that follow
    ULONG BufferSize;

    ULONG NextWmiRegInfo;         // Offset to next WMIREGINFO structure

    ULONG RegistryPath; // Offset from beginning of WMIREGINFO structure to a
                        // counted Unicode string containing
                        // the driver registry path (under HKLM\CCS\Services)
                        // This must be filled only by kernel mode data
						// providers
							
// Offset from beginning of WMIREGINFO structure to a
// counted Unicode string containing
// the name of resource in driver file containing MOF info
    ULONG MofResourceName;

// Count of WMIREGGUID structures immediately following
    ULONG GuidCount;
    WMIREGGUIDW WmiRegGuid[];  // array of GuidCount WMIREGGUID structures
    // Variable length data including :
    //     Instance Names
} WMIREGINFOW, *PWMIREGINFOW;

typedef WMIREGINFOW WMIREGINFO;
typedef PWMIREGINFOW PWMIREGINFO;

//
// WMI request codes
typedef enum
{
#ifndef _WMIKM_
    WMI_GET_ALL_DATA = 0,
    WMI_GET_SINGLE_INSTANCE = 1,
    WMI_SET_SINGLE_INSTANCE = 2,
    WMI_SET_SINGLE_ITEM = 3,
    WMI_ENABLE_EVENTS = 4,
    WMI_DISABLE_EVENTS  = 5,
    WMI_ENABLE_COLLECTION = 6,
    WMI_DISABLE_COLLECTION = 7,
    WMI_REGINFO = 8,
    WMI_EXECUTE_METHOD = 9
#endif
} WMIDPREQUESTCODE;

#if defined(_WINNT_) || defined(WINNT)
//
// WMI guid objects have the following rights
// WMIGUID_QUERY
// WMIGUID_SET
// WMIGUID_NOTIFICATION
// WMIGUID_READ_DESCRIPTION
// WMIGUID_EXECUTE
// TRACELOG_CREATE_REALTIME
// TRACELOG_CREATE_ONDISK
// TRACELOG_GUID_ENABLE
// TRACELOG_ACCESS_KERNEL_LOGGER
// TRACELOG_CREATE_INPROC
// TRACELOG_ACCESS_REALTIME

//
// GuidTypes 
//
#ifndef _WMIKM_
#define WMI_GUIDTYPE_TRACECONTROL 0
#define WMI_GUIDTYPE_TRACE        1
#define WMI_GUIDTYPE_DATA         2
#define WMI_GUIDTYPE_EVENT        3
#endif

#define WMIGUID_QUERY                 0x0001
#define WMIGUID_SET                   0x0002
#define WMIGUID_NOTIFICATION          0x0004
#define WMIGUID_READ_DESCRIPTION      0x0008
#define WMIGUID_EXECUTE               0x0010
#define TRACELOG_CREATE_REALTIME      0x0020
#define TRACELOG_CREATE_ONDISK        0x0040
#define TRACELOG_GUID_ENABLE          0x0080
#define TRACELOG_ACCESS_KERNEL_LOGGER 0x0100
#define TRACELOG_CREATE_INPROC        0x0200
#define TRACELOG_ACCESS_REALTIME      0x0400

#define WMIGUID_ALL_ACCESS (STANDARD_RIGHTS_READ |     \
                            WMIGUID_QUERY |                \
                            WMIGUID_SET |                  \
                            WMIGUID_NOTIFICATION |         \
                            WMIGUID_READ_DESCRIPTION |     \
                            WMIGUID_EXECUTE |              \
                            TRACELOG_CREATE_REALTIME |     \
                            TRACELOG_CREATE_ONDISK |       \
                            TRACELOG_GUID_ENABLE |         \
                            TRACELOG_ACCESS_KERNEL_LOGGER |\
                            TRACELOG_CREATE_INPROC | \
                            TRACELOG_ACCESS_REALTIME)

#define WMI_GLOBAL_LOGGER_ID          0x0001
#endif

#pragma option pop /*P_O_Pop*/
#endif