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2917 lines
62 KiB
2917 lines
62 KiB
/*++
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Copyright (c) Microsoft Corporation. All rights reserved.
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Module Name:
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classpnp.h
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Abstract:
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These are the structures and defines that are used in the
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SCSI class drivers.
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Author:
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Mike Glass (mglass)
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Jeff Havens (jhavens)
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Revision History:
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--*/
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#ifndef _CLASS_
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#define _CLASS_
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#include <ntdddisk.h>
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#include <ntddcdrm.h>
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#include <ntddtape.h>
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#include <ntddscsi.h>
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#include "ntddstor.h"
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#include <stdio.h>
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#include <scsi.h>
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#if defined DebugPrint
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#undef DebugPrint
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#endif
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#ifdef TRY
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#undef TRY
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#endif
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#ifdef LEAVE
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#undef LEAVE
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#endif
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#ifdef FINALLY
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#undef FINALLY
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#endif
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#define TRY
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#define LEAVE goto __tryLabel;
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#define FINALLY __tryLabel:
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// #define ALLOCATE_SRB_FROM_POOL
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//
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// describes the well-known bit masks for ClassDebug, and describes the bits
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// to enable in the debugger to view just those messages. ClassDebugExternalX
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// are reserved for third-party components' debugging use. Anything above
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// 16 will only be printed if the lower two bytes of ClassDebug are higher
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// than the given level (no masking will be available).
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//
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typedef enum _CLASS_DEBUG_LEVEL {
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ClassDebugError = 0, // always printed
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ClassDebugWarning = 1, // set bit 0x00010000 in ClassDebug
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ClassDebugTrace = 2, // set bit 0x00020000 in ClassDebug
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ClassDebugInfo = 3, // set bit 0x00040000 in ClassDebug
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#if 0
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ClassDebug Internal = 4, // set bit 0x00080000 in ClassDebug
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ClassDebug Internal = 5, // set bit 0x00100000 in ClassDebug
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ClassDebug Internal = 6, // set bit 0x00200000 in ClassDebug
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ClassDebug Internal = 7, // set bit 0x00400000 in ClassDebug
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#endif // 0
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ClassDebugMediaLocks = 8, // set bit 0x00800000 in ClassDebug
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ClassDebugMCN = 9, // set bit 0x01000000 in ClassDebug
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ClassDebugDelayedRetry = 10, // set bit 0x02000000 in ClassDebug
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ClassDebugSenseInfo = 11, // set bit 0x04000000 in ClassDebug
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ClassDebugRemoveLock = 12, // set bit 0x08000000 in ClassDebug
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ClassDebugExternal4 = 13, // set bit 0x10000000 in ClassDebug
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ClassDebugExternal3 = 14, // set bit 0x20000000 in ClassDebug
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ClassDebugExternal2 = 15, // set bit 0x40000000 in ClassDebug
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ClassDebugExternal1 = 16 // set bit 0x80000000 in ClassDebug
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} CLASS_DEBUG_LEVEL, *PCLASS_DEBUG_LEVEL;
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#if DBG
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#define DebugPrint(x) ClassDebugPrint x
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#else
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#define DebugPrint(x)
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#endif // DBG
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#define DEBUG_BUFFER_LENGTH 256
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//
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// Define our private SRB flags. The high nibble of the flag field is
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// reserved for class drivers's private use.
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//
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//
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// Used to indicate that this request shouldn't invoke any power type operations
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// like spinning up the drive.
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//
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#define SRB_CLASS_FLAGS_LOW_PRIORITY 0x10000000
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//
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// Used to indicate that the completion routine should not free the srb.
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//
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#define SRB_CLASS_FLAGS_PERSISTANT 0x20000000
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//
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// Used to indicate that an SRB is the result of a paging operation.
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//
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#define SRB_CLASS_FLAGS_PAGING 0x40000000
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//
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// Random macros which should probably be in the system header files
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// somewhere.
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//
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#define max(a,b) (((a) > (b)) ? (a) : (b))
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#define min(a,b) (((a) < (b)) ? (a) : (b))
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//
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// Bit Flag Macros
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//
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#define SET_FLAG(Flags, Bit) ((Flags) |= (Bit))
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#define CLEAR_FLAG(Flags, Bit) ((Flags) &= ~(Bit))
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#define TEST_FLAG(Flags, Bit) (((Flags) & (Bit)) != 0)
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//
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// neat little hacks to count number of bits set efficiently
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//
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__inline ULONG CountOfSetBitsUChar(UCHAR _X)
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{ ULONG i = 0; while (_X) { _X &= _X - 1; i++; } return i; }
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__inline ULONG CountOfSetBitsULong(ULONG _X)
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{ ULONG i = 0; while (_X) { _X &= _X - 1; i++; } return i; }
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__inline ULONG CountOfSetBitsULong32(ULONG32 _X)
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{ ULONG i = 0; while (_X) { _X &= _X - 1; i++; } return i; }
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__inline ULONG CountOfSetBitsULong64(ULONG64 _X)
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{ ULONG i = 0; while (_X) { _X &= _X - 1; i++; } return i; }
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__inline ULONG CountOfSetBitsUlongPtr(ULONG_PTR _X)
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{ ULONG i = 0; while (_X) { _X &= _X - 1; i++; } return i; }
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//
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// Helper macros to verify data types and cleanup the code.
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//
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#define ASSERT_FDO(x) \
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ASSERT(((PCOMMON_DEVICE_EXTENSION) (x)->DeviceExtension)->IsFdo)
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#define ASSERT_PDO(x) \
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ASSERT(!(((PCOMMON_DEVICE_EXTENSION) (x)->DeviceExtension)->IsFdo))
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#define IS_CLEANUP_REQUEST(majorFunction) \
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((majorFunction == IRP_MJ_CLOSE) || \
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(majorFunction == IRP_MJ_CLEANUP) || \
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(majorFunction == IRP_MJ_SHUTDOWN))
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#define DO_MCD(fdoExtension) \
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(((fdoExtension)->MediaChangeDetectionInfo != NULL) && \
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((fdoExtension)->MediaChangeDetectionInfo->MediaChangeDetectionDisableCount == 0))
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#ifdef POOL_TAGGING
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#undef ExAllocatePool
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#undef ExAllocatePoolWithQuota
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#define ExAllocatePool(a,b) ExAllocatePoolWithTag(a,b,'nUcS')
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//#define ExAllocatePool(a,b) #assert(0)
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#define ExAllocatePoolWithQuota(a,b) ExAllocatePoolWithQuotaTag(a,b,'nUcS')
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#endif
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#define CLASS_TAG_AUTORUN_DISABLE 'ALcS'
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#define CLASS_TAG_FILE_OBJECT_EXTENSION 'FLcS'
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#define CLASS_TAG_MEDIA_CHANGE_DETECTION 'MLcS'
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#define CLASS_TAG_MOUNT 'mLcS'
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#define CLASS_TAG_RELEASE_QUEUE 'qLcS'
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#define CLASS_TAG_POWER 'WLcS'
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#define CLASS_TAG_WMI 'wLcS'
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#define CLASS_TAG_FAILURE_PREDICT 'fLcS'
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#define CLASS_TAG_DEVICE_CONTROL 'OIcS'
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#define MAXIMUM_RETRIES 4
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#define CLASS_DRIVER_EXTENSION_KEY ((PVOID) ClassInitialize)
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struct _CLASS_INIT_DATA;
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typedef struct _CLASS_INIT_DATA
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CLASS_INIT_DATA,
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*PCLASS_INIT_DATA;
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//
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// our first attempt at keeping private data actually private....
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//
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struct _CLASS_PRIVATE_FDO_DATA;
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typedef struct _CLASS_PRIVATE_FDO_DATA
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CLASS_PRIVATE_FDO_DATA,
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*PCLASS_PRIVATE_FDO_DATA;
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struct _CLASS_PRIVATE_PDO_DATA;
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typedef struct _CLASS_PRIVATE_PDO_DATA
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CLASS_PRIVATE_PDO_DATA,
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*PCLASS_PRIVATE_PDO_DATA;
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struct _CLASS_PRIVATE_COMMON_DATA;
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typedef struct _CLASS_PRIVATE_COMMON_DATA
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CLASS_PRIVATE_COMMON_DATA,
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*PCLASS_PRIVATE_COMMON_DATA;
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//
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// Possible values for the IsRemoved flag
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//
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#define NO_REMOVE 0
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#define REMOVE_PENDING 1
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#define REMOVE_COMPLETE 2
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#define ClassAcquireRemoveLock(devobj, tag) \
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ClassAcquireRemoveLockEx(devobj, tag, __FILE__, __LINE__)
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//
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// Define start unit timeout to be 4 minutes.
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//
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#define START_UNIT_TIMEOUT (60 * 4)
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//
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// Define media change test time to be 1 second for quicker response
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#define MEDIA_CHANGE_DEFAULT_TIME 1
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#ifdef DBG
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//
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// Used to detect the loss of the autorun irp. The driver prints out a message
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// (debug level 0) if this timeout ever occurs
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//
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#define MEDIA_CHANGE_TIMEOUT_TIME 300
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#endif
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//
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// Define the various states that media can be in for autorun.
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//
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typedef enum _MEDIA_CHANGE_DETECTION_STATE {
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MediaUnknown,
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MediaPresent,
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MediaNotPresent
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} MEDIA_CHANGE_DETECTION_STATE, *PMEDIA_CHANGE_DETECTION_STATE;
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struct _MEDIA_CHANGE_DETECTION_INFO;
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typedef struct _MEDIA_CHANGE_DETECTION_INFO
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MEDIA_CHANGE_DETECTION_INFO, *PMEDIA_CHANGE_DETECTION_INFO;
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//
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// Structures for maintaining a dictionary list (list of objects
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// referenced by a key value)
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//
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struct _DICTIONARY_HEADER;
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typedef struct _DICTIONARY_HEADER DICTIONARY_HEADER, *PDICTIONARY_HEADER;
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typedef struct _DICTIONARY {
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ULONGLONG Signature;
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PDICTIONARY_HEADER List;
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KSPIN_LOCK SpinLock;
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} DICTIONARY, *PDICTIONARY;
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//
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// structures to simplify matching devices, ids, and hacks required for
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// these ids.
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//
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typedef struct _CLASSPNP_SCAN_FOR_SPECIAL_INFO {
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//
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// * NULL pointers indicates that no match is required.
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// * empty string will only match an empty string. non-existant strings
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// in the device descriptor are considered empty strings for this match.
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// (ie. "" will only match "")
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// * all other strings will do partial matches, based upon
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// string provided (ie. "hi" will match "hitazen" and "higazui")
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// * array must end with all three PCHARs being set to NULL.
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//
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PCHAR VendorId;
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PCHAR ProductId;
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PCHAR ProductRevision;
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//
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// marked as a ULONG_PTR to allow use as either a ptr to a data block
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// or 32 bits worth of flags. (64 bits on 64 bit systems) no longer a
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// const so that it may be dynamically built.
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//
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ULONG_PTR Data;
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} CLASSPNP_SCAN_FOR_SPECIAL_INFO, *PCLASSPNP_SCAN_FOR_SPECIAL_INFO;
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#ifdef ALLOCATE_SRB_FROM_POOL
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#define ClasspAllocateSrb(ext)
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ExAllocatePoolWithTag(NonPagedPool, \
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sizeof(SCSI_REQUEST_BLOCK), \
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'sBRS')
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#define ClasspFreeSrb(ext, srb) ExFreePool((srb));
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#else
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#define ClasspAllocateSrb(ext) \
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ExAllocateFromNPagedLookasideList( \
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&((ext)->CommonExtension.SrbLookasideList))
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#define ClasspFreeSrb(ext, srb) \
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ExFreeToNPagedLookasideList( \
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&((ext)->CommonExtension.SrbLookasideList), \
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(srb))
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#endif
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/*++////////////////////////////////////////////////////////////////////////////
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PCLASS_ERROR()
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Routine Description:
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This routine is a callback into the driver to handle errors. The queue
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shall not be unfrozen when this error handler is called, even though the
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SRB flags may mark the queue as having been frozen due to this SRB.
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Irql:
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This routine will be called at KIRQL <= DISPATCH_LEVEL
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Arguments:
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DeviceObject is the device object the error occurred on.
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Srb is the Srb that was being processed when the error occurred.
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Status may be overwritten by the routine if it decides that the error
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was benign, or otherwise wishes to change the returned status code
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for this command
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Retry may be overwritten to specify that this command should or should
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not be retried (if the callee supports retrying commands)
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Return Value:
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status
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--*/
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typedef
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VOID
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(*PCLASS_ERROR) (
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IN PDEVICE_OBJECT DeviceObject,
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IN PSCSI_REQUEST_BLOCK Srb,
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OUT NTSTATUS *Status,
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IN OUT BOOLEAN *Retry
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);
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/*++////////////////////////////////////////////////////////////////////////////
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PCLASS_ADD_DEVICE()
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Routine Description:
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This routine is a callback into the driver to create and initialize a new
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FDO for the corresponding PDO. It may perform property queries on the PDO
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but cannot do any media access operations.
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Irql:
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This routine will be called at PASSIVE_LEVEL.
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Its code may be safely paged.
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Arguments:
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DriverObject is the class driver object this callback is registered for.
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PDO is the physical device object being added to.
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Return Value:
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status
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--*/
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typedef
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NTSTATUS
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(*PCLASS_ADD_DEVICE) (
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IN PDRIVER_OBJECT DriverObject,
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IN PDEVICE_OBJECT Pdo
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);
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/*++////////////////////////////////////////////////////////////////////////////
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CLASS_POWER_DEVICE()
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Routine Description:
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This routine is a callback into the driver to handle power up and
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power down requests. Most drivers can set this to ClassPowerHandler,
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which will send a STOP_UNIT on powerdown, and a START_UNIT on powerup.
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ClassMinimalPowerHandler() may also be used to do nothing for power
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operations (except succeed them). Please see the DDK for proper handling
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of IRP_MN_DEVICE_USAGE_NOTIFICATION for details regarding interaction
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of paging device notifications and the IRQL at which this routine will
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be called.
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Irql:
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This routine will be called at PASSIVE_LEVEL if DO_POWER_PAGABLE is set.
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This code should NOT be pagable to prevent race conditions during the
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setting and clearing of the DO_POWER_PAGABLE bit.
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Arguments:
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DeviceObject is the device that has the pending power request
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Irp is the power irp that needs to be handled
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Return Value:
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status
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--*/
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typedef
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NTSTATUS
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(*PCLASS_POWER_DEVICE) (
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp
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);
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/*++////////////////////////////////////////////////////////////////////////////
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CLASS_START_DEVICE()
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Routine Description:
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This routine is a callback into the driver to initialize the FDO or PDO for
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all requests, typically due to a IRP_MN_START_DEVICE.
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Irql:
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This routine will be called at PASSIVE_LEVEL.
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Its code may be safely paged.
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Arguments:
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DeviceObject is the device object being started
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Return Value:
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status
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--*/
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typedef
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NTSTATUS
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(*PCLASS_START_DEVICE) (
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IN PDEVICE_OBJECT DeviceObject
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);
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/*++////////////////////////////////////////////////////////////////////////////
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CLASS_STOP_DEVICE()
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Routine Description:
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This routine is a callback into the driver to stop the device.
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For the storage stack, unless there are known issues, this routine
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need only return. All queueing shall be handled by the lower device
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drivers.
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Irql:
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This routine will be called at PASSIVE_LEVEL.
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Its code may be safely paged.
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Arguments:
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DeviceObject is the device object being stopped/query stopped.
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Type is the IRP_MN_ type that must be handled.
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Return Value:
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status
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--*/
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typedef
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NTSTATUS
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(*PCLASS_STOP_DEVICE) (
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IN PDEVICE_OBJECT DeviceObject,
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IN UCHAR Type
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);
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/*++////////////////////////////////////////////////////////////////////////////
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CLASS_INIT_DEVICE()
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Routine Description:
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This routine is a callback into the driver to do one-time initialization
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of new device objects. It shall be called exactly once per device object,
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and it shall be called prior to CLASS_START_DEVICE() routine.
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Irql:
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This routine will be called at PASSIVE_LEVEL.
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Its code may be safely paged.
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Arguments:
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DeviceObject is the device object to be initialized
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Return Value:
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status
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--*/
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typedef
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NTSTATUS
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(*PCLASS_INIT_DEVICE) (
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IN PDEVICE_OBJECT DeviceObject
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);
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/*++////////////////////////////////////////////////////////////////////////////
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CLASS_ENUM_DEVICE()
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Routine Description:
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This routine is a callback into the driver to update the list of PDOs for
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a given FDO. See DISK.SYS's DiskEnumerateDevice for an example of use.
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Irql:
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This routine will be called at PASSIVE_LEVEL.
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Its code may be safely paged.
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Arguments:
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DeviceObject is the FDO which is being enumerated.
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Return Value:
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status
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--*/
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typedef
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NTSTATUS
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(*PCLASS_ENUM_DEVICE) (
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IN PDEVICE_OBJECT DeviceObject
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);
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/*++////////////////////////////////////////////////////////////////////////////
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PCLASS_READ_WRITE()
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Routine Description:
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This routine is a callback into the driver to verify READ and WRITE irps.
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If the READ or WRITE request is failed, this routine shall set the Irp's
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IoStatus.Status to the returned error code and the IoStatus.Information
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field as appropriate for the given error.
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Irql:
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This routine will be called at KIRQL <= DISPATCH_LEVEL
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|
Arguments:
|
|
|
|
DeviceObject is the device object being read from or written to
|
|
|
|
Irp is the read or write request being processed
|
|
|
|
Return Value:
|
|
|
|
status
|
|
|
|
--*/
|
|
typedef
|
|
NTSTATUS
|
|
(*PCLASS_READ_WRITE) (
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp
|
|
);
|
|
|
|
|
|
/*++////////////////////////////////////////////////////////////////////////////
|
|
|
|
PCLASS_DEVICE_CONTROL()
|
|
|
|
Routine Description:
|
|
|
|
This routine is a callback into the driver to
|
|
|
|
Irql:
|
|
|
|
This routine will only be called at PASSIVE_LEVEL for storage IOCTLs.
|
|
The code must therefore not be paged, but may call paged code for those
|
|
ioctls which have been defined to be sent at PASSIVE_LEVEL, such as the
|
|
storage IOCTLS. Otherwise KIRQL <= DISPATCH_LEVEL.
|
|
|
|
Arguments:
|
|
|
|
DeviceObject is the device object the IOCTL may be for
|
|
|
|
Irp is the IOCTL request currently being processed
|
|
|
|
Return Value:
|
|
|
|
status
|
|
|
|
--*/
|
|
typedef
|
|
NTSTATUS
|
|
(*PCLASS_DEVICE_CONTROL) (
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp
|
|
);
|
|
|
|
|
|
/*++////////////////////////////////////////////////////////////////////////////
|
|
|
|
PCLASS_SHUTDOWN_FLUSH()
|
|
|
|
Routine Description:
|
|
|
|
This routine is a callback into the driver to handle shutdown and flush
|
|
irps. These are sent by the system before it actually shuts down or when
|
|
the file system does a flush.
|
|
|
|
This routine may synchronize the device's media / cache and ensure the
|
|
device is not locked if the system is in the process of shutting down.
|
|
|
|
Irql:
|
|
|
|
This routine will be called at KIRQL <= DISPATCH_LEVEL
|
|
|
|
Arguments:
|
|
|
|
DeviceObject is the device object that needs to be flushed
|
|
|
|
Irp is the shutdown or flush request currently being processed
|
|
|
|
Return Value:
|
|
|
|
status
|
|
|
|
--*/
|
|
typedef
|
|
NTSTATUS
|
|
(*PCLASS_SHUTDOWN_FLUSH) (
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp
|
|
);
|
|
|
|
|
|
/*++////////////////////////////////////////////////////////////////////////////
|
|
|
|
PCLASS_CREATE_CLOSE()
|
|
|
|
Routine Description:
|
|
|
|
This routine is a callback into the driver when the device is opened or
|
|
closed.
|
|
|
|
Irql:
|
|
|
|
This routine will be called at PASSIVE_LEVEL.
|
|
Its code may be safely paged.
|
|
|
|
Arguments:
|
|
|
|
DeviceObject that is handling the request
|
|
|
|
Irp is the create or close request currently being processed
|
|
|
|
Return Value:
|
|
|
|
status
|
|
|
|
--*/
|
|
typedef
|
|
NTSTATUS
|
|
(*PCLASS_CREATE_CLOSE) (
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp
|
|
);
|
|
|
|
|
|
/*++////////////////////////////////////////////////////////////////////////////
|
|
|
|
PCLASS_QUERY_ID()
|
|
|
|
Routine Description:
|
|
|
|
This routine generates the PNP id's for the device's enumerated PDOs.
|
|
If the specified ID is one that cannot be generated, then the return
|
|
status shall be STATUS_NOT_IMPLEMENTED so that classpnp shall not
|
|
handle the request. This routine shall allocate the buffer in the unicode
|
|
string "IdString" upon success; it is the caller's responsibility to free
|
|
this buffer when it is done.
|
|
|
|
Irql:
|
|
|
|
This routine will be called at PASSIVE_LEVEL.
|
|
Its code may be safely paged.
|
|
|
|
Arguments:
|
|
|
|
DeviceObject is the PDO to generate an ID for
|
|
|
|
IdType is the type of ID to be generated
|
|
|
|
UnicodeIdString is the string to place the results into
|
|
|
|
Return Value:
|
|
|
|
status
|
|
|
|
--*/
|
|
typedef
|
|
NTSTATUS
|
|
(*PCLASS_QUERY_ID) (
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN BUS_QUERY_ID_TYPE IdType,
|
|
IN PUNICODE_STRING IdString
|
|
);
|
|
|
|
|
|
/*++////////////////////////////////////////////////////////////////////////////
|
|
|
|
PCLASS_REMOVE_DEVICE()
|
|
|
|
Routine Description:
|
|
|
|
This routine is a callback into the driver to release any resources the
|
|
device may have allocated for the device object.
|
|
|
|
Irql:
|
|
|
|
This routine will be called at PASSIVE_LEVEL.
|
|
Its code may be safely paged.
|
|
|
|
Arguments:
|
|
|
|
DeviceObject is the device object being removed/query removed/etc.
|
|
|
|
Return Value:
|
|
|
|
status
|
|
|
|
--*/
|
|
typedef
|
|
NTSTATUS
|
|
(*PCLASS_REMOVE_DEVICE) (
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN UCHAR Type
|
|
);
|
|
|
|
|
|
/*++////////////////////////////////////////////////////////////////////////////
|
|
|
|
PCLASS_UNLOAD()
|
|
|
|
Routine Description:
|
|
|
|
This routine is a callback into the driver to unload itself. It must free
|
|
any resources allocated in the DriverEntry portion of the driver.
|
|
|
|
Irql:
|
|
|
|
This routine will be called at PASSIVE_LEVEL.
|
|
Its code may be safely paged.
|
|
|
|
Arguments:
|
|
|
|
X
|
|
|
|
Irp is the IOCTL request currently being processed
|
|
|
|
Return Value:
|
|
|
|
status
|
|
|
|
--*/
|
|
typedef
|
|
VOID
|
|
(*PCLASS_UNLOAD) (
|
|
IN PDRIVER_OBJECT DriverObject
|
|
);
|
|
|
|
|
|
/*++////////////////////////////////////////////////////////////////////////////
|
|
|
|
PCLASS_QUERY_PNP_CAPABILITIES()
|
|
|
|
Routine Description:
|
|
|
|
ISSUE-2000/02/18-henrygab - description required
|
|
|
|
Irql:
|
|
|
|
This routine will be called at PASSIVE_LEVEL.
|
|
Its code may be safely paged.
|
|
|
|
Arguments:
|
|
|
|
PhysicalDeviceObject is the PDO for which this query shall occur
|
|
|
|
Capabilities is a structure that shall be modified by this routine
|
|
to report the device's capabilities.
|
|
|
|
Return Value:
|
|
|
|
status
|
|
|
|
--*/
|
|
typedef
|
|
NTSTATUS
|
|
(*PCLASS_QUERY_PNP_CAPABILITIES) (
|
|
IN PDEVICE_OBJECT PhysicalDeviceObject,
|
|
IN PDEVICE_CAPABILITIES Capabilities
|
|
);
|
|
|
|
|
|
/*++////////////////////////////////////////////////////////////////////////////
|
|
|
|
PCLASS_TICK()
|
|
|
|
Routine Description:
|
|
|
|
This routine is a callback into the driver that is called once per second.
|
|
|
|
Irql:
|
|
|
|
This routine will be called at DISPATCH_LEVEL
|
|
|
|
Arguments:
|
|
|
|
DeviceObject is the device object for which the timer has fired
|
|
|
|
Return Value:
|
|
|
|
status
|
|
|
|
--*/
|
|
typedef
|
|
VOID
|
|
(*PCLASS_TICK) (
|
|
IN PDEVICE_OBJECT DeviceObject
|
|
);
|
|
|
|
|
|
/*++////////////////////////////////////////////////////////////////////////////
|
|
|
|
PCLASS_QUERY_WMI_REGINFO_EX()
|
|
|
|
Routine Description:
|
|
|
|
This routine is a callback into the driver to retrieve information about
|
|
the guids being registered.
|
|
|
|
Irql:
|
|
|
|
This routine will be called at PASSIVE_LEVEL.
|
|
Its code may be safely paged.
|
|
|
|
Arguments:
|
|
|
|
DeviceObject is the device whose registration information is needed
|
|
|
|
*RegFlags returns with a set of flags that describe the guids being
|
|
registered for this device. If the device wants enable and disable
|
|
collection callbacks before receiving queries for the registered
|
|
guids then it should return the WMIREG_FLAG_EXPENSIVE flag. Also the
|
|
returned flags may specify WMIREG_FLAG_INSTANCE_PDO in which case
|
|
the instance name is determined from the PDO associated with the
|
|
device object. Note that the PDO must have an associated devnode. If
|
|
WMIREG_FLAG_INSTANCE_PDO is not set then Name must return a unique
|
|
name for the device.
|
|
|
|
Name returns with the instance name for the guids if
|
|
WMIREG_FLAG_INSTANCE_PDO is not set in the returned *RegFlags. The
|
|
caller will call ExFreePool with the buffer returned.
|
|
|
|
MofResourceName returns filled with a static string that contains
|
|
the name of the MOF resource attached to the drivers image. The
|
|
caller does not free the buffer as it is expected that the
|
|
caller will use RtlInitializeUnicodeString to populate it.
|
|
|
|
Return Value:
|
|
|
|
status
|
|
|
|
--*/
|
|
typedef
|
|
NTSTATUS
|
|
(*PCLASS_QUERY_WMI_REGINFO_EX) (
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
OUT ULONG *RegFlags,
|
|
OUT PUNICODE_STRING Name,
|
|
OUT PUNICODE_STRING MofResouceName
|
|
);
|
|
|
|
/*++////////////////////////////////////////////////////////////////////////////
|
|
|
|
PCLASS_QUERY_WMI_REGINFO()
|
|
|
|
Routine Description:
|
|
|
|
This routine is a callback into the driver to retrieve information about
|
|
the guids being registered.
|
|
|
|
Irql:
|
|
|
|
This routine will be called at PASSIVE_LEVEL.
|
|
Its code may be safely paged.
|
|
|
|
Arguments:
|
|
|
|
DeviceObject is the device whose registration information is needed
|
|
|
|
*RegFlags returns with a set of flags that describe the guids being
|
|
registered for this device. If the device wants enable and disable
|
|
collection callbacks before receiving queries for the registered
|
|
guids then it should return the WMIREG_FLAG_EXPENSIVE flag. Also the
|
|
returned flags may specify WMIREG_FLAG_INSTANCE_PDO in which case
|
|
the instance name is determined from the PDO associated with the
|
|
device object. Note that the PDO must have an associated devnode. If
|
|
WMIREG_FLAG_INSTANCE_PDO is not set then Name must return a unique
|
|
name for the device.
|
|
|
|
Name returns with the instance name for the guids if
|
|
WMIREG_FLAG_INSTANCE_PDO is not set in the returned *RegFlags. The
|
|
caller will call ExFreePool with the buffer returned.
|
|
|
|
|
|
Return Value:
|
|
|
|
status
|
|
|
|
--*/
|
|
typedef
|
|
NTSTATUS
|
|
(*PCLASS_QUERY_WMI_REGINFO) (
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
OUT ULONG *RegFlags,
|
|
OUT PUNICODE_STRING Name
|
|
);
|
|
|
|
/*++////////////////////////////////////////////////////////////////////////////
|
|
|
|
PCLASS_QUERY_WMI_DATABLOCK()
|
|
|
|
Routine Description:
|
|
|
|
This routine is a callback into the driver to query for the contents of
|
|
a data block. When the driver has finished filling the data block it
|
|
must call ClassWmiCompleteRequest to complete the irp. The driver can
|
|
return STATUS_PENDING if the irp cannot be completed immediately.
|
|
|
|
Irql:
|
|
|
|
This routine will be called at PASSIVE_LEVEL.
|
|
Its code may be safely paged.
|
|
|
|
Arguments:
|
|
|
|
DeviceObject is the device whose data block is being queried
|
|
|
|
Irp is the Irp that makes this request
|
|
|
|
GuidIndex is the index into the list of guids provided when the
|
|
device registered
|
|
|
|
BufferAvail on has the maximum size available to write the data
|
|
block.
|
|
|
|
Buffer on return is filled with the returned data block
|
|
|
|
|
|
Return Value:
|
|
|
|
status
|
|
|
|
--*/
|
|
typedef
|
|
NTSTATUS
|
|
(*PCLASS_QUERY_WMI_DATABLOCK) (
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp,
|
|
IN ULONG GuidIndex,
|
|
IN ULONG BufferAvail,
|
|
OUT PUCHAR Buffer
|
|
);
|
|
|
|
|
|
/*++////////////////////////////////////////////////////////////////////////////
|
|
|
|
PCLASS_SET_WMI_DATABLOCK()
|
|
|
|
Routine Description:
|
|
|
|
This routine is a callback into the driver to query for the contents of
|
|
a data block. When the driver has finished filling the data block it
|
|
must call ClassWmiCompleteRequest to complete the irp. The driver can
|
|
return STATUS_PENDING if the irp cannot be completed immediately.
|
|
|
|
Irql:
|
|
|
|
This routine will be called at PASSIVE_LEVEL.
|
|
Its code may be safely paged.
|
|
|
|
Arguments:
|
|
|
|
DeviceObject is the device whose data block is being queried
|
|
|
|
Irp is the Irp that makes this request
|
|
|
|
GuidIndex is the index into the list of guids provided when the
|
|
device registered
|
|
|
|
BufferSize has the size of the data block passed
|
|
|
|
Buffer has the new values for the data block
|
|
|
|
|
|
Return Value:
|
|
|
|
status
|
|
|
|
--*/
|
|
typedef
|
|
NTSTATUS
|
|
(*PCLASS_SET_WMI_DATABLOCK) (
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp,
|
|
IN ULONG GuidIndex,
|
|
IN ULONG BufferSize,
|
|
IN PUCHAR Buffer
|
|
);
|
|
|
|
|
|
/*++////////////////////////////////////////////////////////////////////////////
|
|
|
|
PCLASS_SET_WMI_DATAITEM()
|
|
|
|
Routine Description:
|
|
|
|
This routine is a callback into the driver to query for the contents of
|
|
a data block. When the driver has finished filling the data block it
|
|
must call ClassWmiCompleteRequest to complete the irp. The driver can
|
|
return STATUS_PENDING if the irp cannot be completed immediately.
|
|
|
|
Irql:
|
|
|
|
This routine will be called at PASSIVE_LEVEL.
|
|
Its code may be safely paged.
|
|
|
|
Arguments:
|
|
|
|
DeviceObject is the device whose data block is being queried
|
|
|
|
Irp is the Irp that makes this request
|
|
|
|
GuidIndex is the index into the list of guids provided when the
|
|
device registered
|
|
|
|
DataItemId has the id of the data item being set
|
|
|
|
BufferSize has the size of the data item passed
|
|
|
|
Buffer has the new values for the data item
|
|
|
|
|
|
Return Value:
|
|
|
|
status
|
|
|
|
--*/
|
|
typedef
|
|
NTSTATUS
|
|
(*PCLASS_SET_WMI_DATAITEM) (
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp,
|
|
IN ULONG GuidIndex,
|
|
IN ULONG DataItemId,
|
|
IN ULONG BufferSize,
|
|
IN PUCHAR Buffer
|
|
);
|
|
|
|
|
|
/*++////////////////////////////////////////////////////////////////////////////
|
|
|
|
PCLASS_EXECUTE_WMI_METHOD()
|
|
|
|
Routine Description:
|
|
|
|
This routine is a callback into the driver to execute a method. When the
|
|
driver has finished filling the data block it must call
|
|
ClassWmiCompleteRequest to complete the irp. The driver can
|
|
return STATUS_PENDING if the irp cannot be completed immediately.
|
|
|
|
Irql:
|
|
|
|
This routine will be called at PASSIVE_LEVEL.
|
|
Its code may be safely paged.
|
|
|
|
Arguments:
|
|
|
|
DeviceObject is the device whose data block is being queried
|
|
|
|
Irp is the Irp that makes this request
|
|
|
|
GuidIndex is the index into the list of guids provided when the
|
|
device registered
|
|
|
|
MethodId has the id of the method being called
|
|
|
|
InBufferSize has the size of the data block passed in as the input to
|
|
the method.
|
|
|
|
OutBufferSize on entry has the maximum size available to write the
|
|
returned data block.
|
|
|
|
Buffer is filled with the returned data block
|
|
|
|
|
|
Return Value:
|
|
|
|
status
|
|
|
|
--*/
|
|
typedef
|
|
NTSTATUS
|
|
(*PCLASS_EXECUTE_WMI_METHOD) (
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp,
|
|
IN ULONG GuidIndex,
|
|
IN ULONG MethodId,
|
|
IN ULONG InBufferSize,
|
|
IN ULONG OutBufferSize,
|
|
IN PUCHAR Buffer
|
|
);
|
|
|
|
|
|
|
|
//
|
|
// used by PCLASS_WMI_FUNCTION_CONTROL
|
|
//
|
|
typedef enum {
|
|
EventGeneration,
|
|
DataBlockCollection
|
|
} CLASSENABLEDISABLEFUNCTION;
|
|
|
|
/*++////////////////////////////////////////////////////////////////////////////
|
|
|
|
PCLASS_WMI_FUNCTION_CONTROL()
|
|
|
|
Routine Description:
|
|
|
|
This routine is a callback into the driver to enabled or disable event
|
|
generation or data block collection. A device should only expect a
|
|
single enable when the first event or data consumer enables events or
|
|
data collection and a single disable when the last event or data
|
|
consumer disables events or data collection. Data blocks will only
|
|
receive collection enable/disable if they were registered as requiring
|
|
it.
|
|
|
|
Irql:
|
|
|
|
This routine will be called at PASSIVE_LEVEL.
|
|
Its code may be safely paged.
|
|
|
|
Arguments:
|
|
|
|
DeviceObject is the device whose data block is being queried
|
|
|
|
GuidIndex is the index into the list of guids provided when the
|
|
device registered
|
|
|
|
Function specifies which functionality is being enabled or disabled
|
|
|
|
Enable is TRUE then the function is being enabled else disabled
|
|
|
|
Return Value:
|
|
|
|
status
|
|
|
|
--*/
|
|
typedef
|
|
NTSTATUS
|
|
(*PCLASS_WMI_FUNCTION_CONTROL) (
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp,
|
|
IN ULONG GuidIndex,
|
|
IN CLASSENABLEDISABLEFUNCTION Function,
|
|
IN BOOLEAN Enable
|
|
);
|
|
|
|
|
|
|
|
//
|
|
// Restricted - May only append to this structure for backwards compatibility
|
|
//
|
|
typedef struct {
|
|
GUID Guid; // Guid to registered
|
|
ULONG InstanceCount; // Count of Instances of Datablock
|
|
ULONG Flags; // Additional flags (see WMIREGINFO in wmistr.h)
|
|
} GUIDREGINFO, *PGUIDREGINFO;
|
|
|
|
|
|
//
|
|
// Restricted - May only append to this structure for backwards compatibility
|
|
//
|
|
typedef struct _CLASS_WMI_INFO {
|
|
ULONG GuidCount;
|
|
PGUIDREGINFO GuidRegInfo;
|
|
|
|
PCLASS_QUERY_WMI_REGINFO ClassQueryWmiRegInfo;
|
|
PCLASS_QUERY_WMI_DATABLOCK ClassQueryWmiDataBlock;
|
|
PCLASS_SET_WMI_DATABLOCK ClassSetWmiDataBlock;
|
|
PCLASS_SET_WMI_DATAITEM ClassSetWmiDataItem;
|
|
PCLASS_EXECUTE_WMI_METHOD ClassExecuteWmiMethod;
|
|
PCLASS_WMI_FUNCTION_CONTROL ClassWmiFunctionControl;
|
|
} CLASS_WMI_INFO, *PCLASS_WMI_INFO;
|
|
|
|
|
|
//
|
|
// Restricted - May only append to this structure for backwards compatibility
|
|
//
|
|
typedef struct _CLASS_DEV_INFO {
|
|
|
|
//
|
|
// Bytes needed by the class driver
|
|
// for it's extension.
|
|
// If this is zero, the driver does not expect to have any PDO's
|
|
//
|
|
|
|
ULONG DeviceExtensionSize;
|
|
|
|
DEVICE_TYPE DeviceType;
|
|
|
|
UCHAR StackSize;
|
|
|
|
//
|
|
// Device Characteristics flags
|
|
// eg.:
|
|
//
|
|
// FILE_REMOVABLE_MEDIA
|
|
// FILE_READ_ONLY_DEVICE
|
|
// FILE_FLOPPY_DISKETTE
|
|
// FILE_WRITE_ONCE_MEDIA
|
|
// FILE_REMOTE_DEVICE
|
|
// FILE_DEVICE_IS_MOUNTED
|
|
// FILE_VIRTUAL_VOLUME
|
|
//
|
|
|
|
ULONG DeviceCharacteristics;
|
|
|
|
PCLASS_ERROR ClassError;
|
|
PCLASS_READ_WRITE ClassReadWriteVerification;
|
|
PCLASS_DEVICE_CONTROL ClassDeviceControl;
|
|
PCLASS_SHUTDOWN_FLUSH ClassShutdownFlush;
|
|
PCLASS_CREATE_CLOSE ClassCreateClose;
|
|
|
|
PCLASS_INIT_DEVICE ClassInitDevice;
|
|
PCLASS_START_DEVICE ClassStartDevice;
|
|
PCLASS_POWER_DEVICE ClassPowerDevice;
|
|
PCLASS_STOP_DEVICE ClassStopDevice;
|
|
PCLASS_REMOVE_DEVICE ClassRemoveDevice;
|
|
|
|
PCLASS_QUERY_PNP_CAPABILITIES ClassQueryPnpCapabilities;
|
|
|
|
//
|
|
// Registered Data Block info for wmi
|
|
//
|
|
CLASS_WMI_INFO ClassWmiInfo;
|
|
|
|
} CLASS_DEV_INFO, *PCLASS_DEV_INFO;
|
|
|
|
//
|
|
// Restricted - May only append to this structure for backwards compatibility
|
|
//
|
|
struct _CLASS_INIT_DATA {
|
|
|
|
//
|
|
// This structure size - version checking.
|
|
//
|
|
|
|
ULONG InitializationDataSize;
|
|
|
|
//
|
|
// Specific init data for functional and physical device objects.
|
|
//
|
|
|
|
CLASS_DEV_INFO FdoData;
|
|
CLASS_DEV_INFO PdoData;
|
|
|
|
//
|
|
// Device-specific driver routines
|
|
//
|
|
|
|
PCLASS_ADD_DEVICE ClassAddDevice;
|
|
PCLASS_ENUM_DEVICE ClassEnumerateDevice;
|
|
|
|
PCLASS_QUERY_ID ClassQueryId;
|
|
|
|
PDRIVER_STARTIO ClassStartIo;
|
|
PCLASS_UNLOAD ClassUnload;
|
|
|
|
PCLASS_TICK ClassTick;
|
|
};
|
|
|
|
//
|
|
// this is a private structure, but must be kept here
|
|
// to properly compile size of FUNCTIONAL_DEVICE_EXTENSION
|
|
//
|
|
typedef struct _FILE_OBJECT_EXTENSION {
|
|
PFILE_OBJECT FileObject;
|
|
PDEVICE_OBJECT DeviceObject;
|
|
ULONG LockCount;
|
|
ULONG McnDisableCount;
|
|
} FILE_OBJECT_EXTENSION, *PFILE_OBJECT_EXTENSION;
|
|
|
|
|
|
//
|
|
// Restricted - May only append to this structure for backwards compatibility
|
|
//
|
|
typedef struct _CLASS_DRIVER_EXTENSION {
|
|
|
|
UNICODE_STRING RegistryPath;
|
|
|
|
CLASS_INIT_DATA InitData;
|
|
|
|
ULONG DeviceCount;
|
|
|
|
PCLASS_QUERY_WMI_REGINFO_EX ClassFdoQueryWmiRegInfoEx;
|
|
PCLASS_QUERY_WMI_REGINFO_EX ClassPdoQueryWmiRegInfoEx;
|
|
|
|
} CLASS_DRIVER_EXTENSION, *PCLASS_DRIVER_EXTENSION;
|
|
|
|
typedef struct _COMMON_DEVICE_EXTENSION COMMON_DEVICE_EXTENSION, *PCOMMON_DEVICE_EXTENSION;
|
|
typedef struct _FUNCTIONAL_DEVICE_EXTENSION FUNCTIONAL_DEVICE_EXTENSION, *PFUNCTIONAL_DEVICE_EXTENSION;
|
|
typedef struct _PHYSICAL_DEVICE_EXTENSION PHYSICAL_DEVICE_EXTENSION, *PPHYSICAL_DEVICE_EXTENSION;
|
|
|
|
//
|
|
// Restricted - May only append to this structure for backwards compatibility
|
|
//
|
|
typedef struct _COMMON_DEVICE_EXTENSION {
|
|
|
|
//
|
|
// Version control field
|
|
//
|
|
// Note - this MUST be the first thing in the device extension
|
|
// for any class driver using classpnp or a later version.
|
|
//
|
|
|
|
ULONG Version;
|
|
|
|
//
|
|
// Back pointer to device object
|
|
//
|
|
// NOTE - this MUST be the second field in the common device extension.
|
|
// Users of this structure will include it in a union with the DeviceObject
|
|
// pointer so they can reference this with a bit of syntactic sugar.
|
|
//
|
|
|
|
PDEVICE_OBJECT DeviceObject;
|
|
|
|
//
|
|
// Pointer to lower device object - send all requests through this
|
|
//
|
|
|
|
PDEVICE_OBJECT LowerDeviceObject;
|
|
|
|
//
|
|
// Pointer to the partition zero device extension.
|
|
// There are several flags stored there that pdo
|
|
// routines need to access
|
|
//
|
|
|
|
PFUNCTIONAL_DEVICE_EXTENSION PartitionZeroExtension;
|
|
|
|
//
|
|
// Pointer to the initialization data for this driver. This is more
|
|
// efficient than constantly getting the driver extension.
|
|
//
|
|
|
|
PCLASS_DRIVER_EXTENSION DriverExtension;
|
|
|
|
//
|
|
// INTERLOCKED counter of the number of requests/function calls outstanding
|
|
// which will need to use this device object. When this count goes to
|
|
// zero the RemoveEvent will be set.
|
|
//
|
|
// This variable is only manipulated by ClassIncrementRemoveLock and
|
|
// ClassDecrementRemoveLock.
|
|
//
|
|
|
|
LONG RemoveLock;
|
|
|
|
//
|
|
// This event will be signalled when it is safe to remove the device object
|
|
//
|
|
|
|
KEVENT RemoveEvent;
|
|
|
|
//
|
|
// The spinlock and the list are only used in checked builds to track
|
|
// who has acquired the remove lock. Free systems will leave these
|
|
// initialized to ff
|
|
//
|
|
|
|
KSPIN_LOCK RemoveTrackingSpinlock;
|
|
|
|
PVOID RemoveTrackingList;
|
|
|
|
LONG RemoveTrackingUntrackedCount;
|
|
|
|
//
|
|
// Pointer to the driver specific data area
|
|
//
|
|
|
|
PVOID DriverData;
|
|
|
|
//
|
|
// Flag indicates whether this device object is
|
|
// an FDO or a PDO
|
|
//
|
|
|
|
struct {
|
|
BOOLEAN IsFdo : 1;
|
|
BOOLEAN IsInitialized : 1;
|
|
|
|
//
|
|
// Flag indicating whether the lookaside listhead for srbs has been
|
|
// initialized.
|
|
//
|
|
|
|
BOOLEAN IsSrbLookasideListInitialized : 1;
|
|
};
|
|
|
|
//
|
|
// Contains the IRP_MN_CODE of the last state-changing pnp irps we
|
|
// recieved (XXX_STOP, XXX_REMOVE, START, etc...). Used in concert
|
|
// with IsRemoved.
|
|
//
|
|
|
|
UCHAR PreviousState;
|
|
UCHAR CurrentState;
|
|
|
|
//
|
|
// interlocked flag indicating that the device has been removed.
|
|
//
|
|
|
|
ULONG IsRemoved;
|
|
|
|
//
|
|
// The name of the object
|
|
//
|
|
UNICODE_STRING DeviceName;
|
|
|
|
//
|
|
// The next child device (or if this is an FDO, the first child device).
|
|
//
|
|
|
|
PPHYSICAL_DEVICE_EXTENSION ChildList;
|
|
|
|
//
|
|
// Number of the partition or -1L if not partitionable.
|
|
//
|
|
|
|
ULONG PartitionNumber;
|
|
|
|
//
|
|
// Length of partition in bytes
|
|
//
|
|
|
|
LARGE_INTEGER PartitionLength;
|
|
|
|
//
|
|
// Number of bytes before start of partition
|
|
//
|
|
|
|
LARGE_INTEGER StartingOffset;
|
|
|
|
//
|
|
// Dev-Info structure for this type of device object
|
|
// Contains call-out routines for the class driver.
|
|
//
|
|
|
|
PCLASS_DEV_INFO DevInfo;
|
|
|
|
//
|
|
// Count of page files going through this device object
|
|
// and event to synchronize them with.
|
|
//
|
|
|
|
ULONG PagingPathCount;
|
|
ULONG DumpPathCount;
|
|
ULONG HibernationPathCount;
|
|
KEVENT PathCountEvent;
|
|
|
|
#ifndef ALLOCATE_SRB_FROM_POOL
|
|
//
|
|
// Lookaside listhead for srbs.
|
|
//
|
|
|
|
NPAGED_LOOKASIDE_LIST SrbLookasideList;
|
|
#endif
|
|
|
|
//
|
|
// Interface name string returned by IoRegisterDeviceInterface.
|
|
//
|
|
|
|
UNICODE_STRING MountedDeviceInterfaceName;
|
|
|
|
|
|
//
|
|
// Registered Data Block info for wmi
|
|
//
|
|
ULONG GuidCount;
|
|
PGUIDREGINFO GuidRegInfo;
|
|
|
|
//
|
|
// File object dictionary for this device object. Extensions are stored
|
|
// in here rather than off the actual file object.
|
|
//
|
|
|
|
DICTIONARY FileObjectDictionary;
|
|
|
|
//
|
|
// The following will be in the released product as reserved.
|
|
// Leave these at the end of the structure.
|
|
//
|
|
|
|
PCLASS_PRIVATE_COMMON_DATA PrivateCommonData;
|
|
|
|
ULONG_PTR Reserved2;
|
|
ULONG_PTR Reserved3;
|
|
ULONG_PTR Reserved4;
|
|
|
|
} COMMON_DEVICE_EXTENSION, *PCOMMON_DEVICE_EXTENSION;
|
|
|
|
typedef enum {
|
|
FailurePredictionNone = 0, // No failure detection polling needed
|
|
FailurePredictionIoctl, // Do failure detection via IOCTL
|
|
FailurePredictionSmart, // Do failure detection via SMART
|
|
FailurePredictionSense // Do failure detection via sense data
|
|
} FAILURE_PREDICTION_METHOD, *PFAILURE_PREDICTION_METHOD;
|
|
|
|
//
|
|
// Default failure prediction polling interval is every hour
|
|
//
|
|
|
|
#define DEFAULT_FAILURE_PREDICTION_PERIOD 60 * 60 * 1
|
|
|
|
//
|
|
// The failure prediction structure is internal to classpnp - drivers do not
|
|
// need to know what it contains.
|
|
//
|
|
|
|
struct _FAILURE_PREDICTION_INFO;
|
|
typedef struct _FAILURE_PREDICTION_INFO *PFAILURE_PREDICTION_INFO;
|
|
|
|
//
|
|
// this is to allow for common code to handle
|
|
// every option.
|
|
//
|
|
|
|
typedef struct _CLASS_POWER_OPTIONS {
|
|
ULONG PowerDown : 1;
|
|
ULONG LockQueue : 1;
|
|
ULONG HandleSpinDown : 1;
|
|
ULONG HandleSpinUp : 1;
|
|
ULONG Reserved : 27;
|
|
} CLASS_POWER_OPTIONS, *PCLASS_POWER_OPTIONS;
|
|
|
|
//
|
|
// this is a private structure, but must be kept here
|
|
// to properly compile size of FUNCTIONAL_DEVICE_EXTENSION
|
|
//
|
|
typedef enum {
|
|
PowerDownDeviceInitial,
|
|
PowerDownDeviceLocked,
|
|
PowerDownDeviceStopped,
|
|
PowerDownDeviceOff,
|
|
PowerDownDeviceUnlocked
|
|
} CLASS_POWER_DOWN_STATE;
|
|
|
|
//
|
|
// same as above, but with an extra state for whistler
|
|
// should be ok to change the above structure, but that
|
|
// would break someone somewhere who ignore the PRIVATE
|
|
// nature of the structure.
|
|
//
|
|
|
|
typedef enum {
|
|
PowerDownDeviceInitial2,
|
|
PowerDownDeviceLocked2,
|
|
PowerDownDeviceFlushed2,
|
|
PowerDownDeviceStopped2,
|
|
PowerDownDeviceOff2,
|
|
PowerDownDeviceUnlocked2
|
|
} CLASS_POWER_DOWN_STATE2;
|
|
|
|
//
|
|
// this is a private enum, but must be kept here
|
|
// to properly compile size of FUNCTIONAL_DEVICE_EXTENSION
|
|
//
|
|
typedef enum {
|
|
PowerUpDeviceInitial,
|
|
PowerUpDeviceLocked,
|
|
PowerUpDeviceOn,
|
|
PowerUpDeviceStarted,
|
|
PowerUpDeviceUnlocked
|
|
} CLASS_POWER_UP_STATE;
|
|
|
|
//
|
|
// this is a private structure, but must be kept here
|
|
// to properly compile size of FUNCTIONAL_DEVICE_EXTENSION
|
|
//
|
|
typedef struct _CLASS_POWER_CONTEXT {
|
|
|
|
union {
|
|
CLASS_POWER_DOWN_STATE PowerDown;
|
|
CLASS_POWER_DOWN_STATE2 PowerDown2; // whistler
|
|
CLASS_POWER_UP_STATE PowerUp;
|
|
} PowerChangeState;
|
|
|
|
CLASS_POWER_OPTIONS Options;
|
|
|
|
BOOLEAN InUse;
|
|
BOOLEAN QueueLocked;
|
|
|
|
NTSTATUS FinalStatus;
|
|
|
|
ULONG RetryCount;
|
|
ULONG RetryInterval;
|
|
|
|
PIO_COMPLETION_ROUTINE CompletionRoutine;
|
|
PDEVICE_OBJECT DeviceObject;
|
|
PIRP Irp;
|
|
|
|
SCSI_REQUEST_BLOCK Srb;
|
|
|
|
} CLASS_POWER_CONTEXT, *PCLASS_POWER_CONTEXT;
|
|
|
|
//
|
|
// Restricted - May only append to this structure for backwards compatibility
|
|
//
|
|
typedef struct _FUNCTIONAL_DEVICE_EXTENSION {
|
|
|
|
//
|
|
// Common device extension header
|
|
//
|
|
|
|
union {
|
|
struct {
|
|
ULONG Version;
|
|
PDEVICE_OBJECT DeviceObject;
|
|
};
|
|
COMMON_DEVICE_EXTENSION CommonExtension;
|
|
};
|
|
|
|
//
|
|
// Pointer to the physical device object we attached to - use this
|
|
// for Pnp calls which need a PDO
|
|
//
|
|
|
|
PDEVICE_OBJECT LowerPdo;
|
|
|
|
//
|
|
// Device capabilities
|
|
//
|
|
|
|
PSTORAGE_DEVICE_DESCRIPTOR DeviceDescriptor;
|
|
|
|
//
|
|
// SCSI port driver capabilities
|
|
//
|
|
|
|
PSTORAGE_ADAPTER_DESCRIPTOR AdapterDescriptor;
|
|
|
|
//
|
|
// Current Power state of the device
|
|
//
|
|
|
|
DEVICE_POWER_STATE DevicePowerState;
|
|
|
|
//
|
|
// DM Driver for IDE drives hack (ie. OnTrack)
|
|
// Bytes to skew all requests
|
|
//
|
|
|
|
ULONG DMByteSkew;
|
|
|
|
//
|
|
// DM Driver for IDE drives hack (ie. OnTrack)
|
|
// Sectors to skew all requests.
|
|
//
|
|
|
|
ULONG DMSkew;
|
|
|
|
//
|
|
// DM Driver for IDE drives hack (ie. OnTrack)
|
|
// Flag to indicate whether DM driver has been located on an IDE drive.
|
|
//
|
|
|
|
BOOLEAN DMActive;
|
|
|
|
//
|
|
// Buffer for drive parameters returned in IO device control.
|
|
//
|
|
|
|
DISK_GEOMETRY DiskGeometry;
|
|
|
|
//
|
|
// Request Sense Buffer
|
|
//
|
|
|
|
PSENSE_DATA SenseData;
|
|
|
|
//
|
|
// Request timeout in seconds;
|
|
//
|
|
|
|
ULONG TimeOutValue;
|
|
|
|
//
|
|
// System device number
|
|
//
|
|
|
|
ULONG DeviceNumber;
|
|
|
|
//
|
|
// Add default Srb Flags.
|
|
//
|
|
|
|
ULONG SrbFlags;
|
|
|
|
//
|
|
// Total number of SCSI protocol errors on the device.
|
|
//
|
|
|
|
ULONG ErrorCount;
|
|
|
|
//
|
|
// Lock count for removable media.
|
|
//
|
|
|
|
LONG LockCount;
|
|
LONG ProtectedLockCount;
|
|
LONG InternalLockCount;
|
|
|
|
KEVENT EjectSynchronizationEvent;
|
|
|
|
//
|
|
// Values for the flags are below.
|
|
//
|
|
|
|
USHORT DeviceFlags;
|
|
|
|
//
|
|
// Log2 of sector size
|
|
//
|
|
|
|
UCHAR SectorShift;
|
|
|
|
UCHAR ReservedByte;
|
|
|
|
//
|
|
// Indicates that the necessary data structures for media change
|
|
// detection have been initialized.
|
|
//
|
|
|
|
PMEDIA_CHANGE_DETECTION_INFO MediaChangeDetectionInfo;
|
|
|
|
PKEVENT Unused1;
|
|
HANDLE Unused2;
|
|
|
|
//
|
|
// File system context. Used for kernel-mode requests to disable autorun.
|
|
//
|
|
|
|
FILE_OBJECT_EXTENSION KernelModeMcnContext;
|
|
|
|
//
|
|
// Count of media changes. This field is only valid for the root partition
|
|
// (ie. if PhysicalDevice == NULL).
|
|
//
|
|
|
|
ULONG MediaChangeCount;
|
|
|
|
//
|
|
// Storage for a handle to the directory the PDO's are placed in
|
|
//
|
|
|
|
HANDLE DeviceDirectory;
|
|
|
|
//
|
|
// Storage for a release queue request.
|
|
//
|
|
|
|
KSPIN_LOCK ReleaseQueueSpinLock;
|
|
|
|
PIRP ReleaseQueueIrp;
|
|
|
|
SCSI_REQUEST_BLOCK ReleaseQueueSrb;
|
|
|
|
BOOLEAN ReleaseQueueNeeded;
|
|
|
|
BOOLEAN ReleaseQueueInProgress;
|
|
|
|
BOOLEAN ReleaseQueueIrpFromPool;
|
|
//
|
|
// Failure detection storage
|
|
//
|
|
|
|
BOOLEAN FailurePredicted;
|
|
|
|
ULONG FailureReason;
|
|
PFAILURE_PREDICTION_INFO FailurePredictionInfo;
|
|
|
|
BOOLEAN PowerDownInProgress;
|
|
|
|
//
|
|
// Interlock for ensuring we don't recurse during enumeration.
|
|
//
|
|
|
|
ULONG EnumerationInterlock;
|
|
|
|
//
|
|
// Synchronization object for manipulating the child list.
|
|
//
|
|
|
|
KEVENT ChildLock;
|
|
|
|
//
|
|
// The thread which currently owns the ChildLock. This is used to
|
|
// avoid recursive acquisition.
|
|
//
|
|
|
|
PKTHREAD ChildLockOwner;
|
|
|
|
//
|
|
// The number of times this event has been acquired.
|
|
//
|
|
|
|
ULONG ChildLockAcquisitionCount;
|
|
|
|
//
|
|
// Flags for special behaviour required by
|
|
// different hardware, such as never spinning down
|
|
// or disabling advanced features such as write cache
|
|
//
|
|
|
|
ULONG ScanForSpecialFlags;
|
|
|
|
//
|
|
// For delayed retry of power requests at DPC level
|
|
//
|
|
|
|
KDPC PowerRetryDpc;
|
|
KTIMER PowerRetryTimer;
|
|
|
|
//
|
|
// Context structure for power operations. Since we can only have
|
|
// one D irp at any time in the stack we don't need to worry about
|
|
// allocating multiple of these structures.
|
|
//
|
|
|
|
CLASS_POWER_CONTEXT PowerContext;
|
|
|
|
//
|
|
// Hold new private data that only classpnp should modify
|
|
// in this structure.
|
|
//
|
|
|
|
PCLASS_PRIVATE_FDO_DATA PrivateFdoData;
|
|
|
|
//
|
|
// For future expandability
|
|
// leave these at the end of the structure.
|
|
//
|
|
|
|
ULONG_PTR Reserved2;
|
|
ULONG_PTR Reserved3;
|
|
ULONG_PTR Reserved4;
|
|
|
|
} FUNCTIONAL_DEVICE_EXTENSION, *PFUNCTIONAL_DEVICE_EXTENSION;
|
|
|
|
//
|
|
// The following CLASS_SPECIAL_ flags are set in ScanForSpecialFlags
|
|
// in the FdoExtension
|
|
//
|
|
|
|
// Never Spin Up/Down the drive (may not handle properly)
|
|
#define CLASS_SPECIAL_DISABLE_SPIN_DOWN 0x00000001
|
|
#define CLASS_SPECIAL_DISABLE_SPIN_UP 0x00000002
|
|
|
|
// Don't bother to lock the queue when powering down
|
|
// (used mostly to send a quick stop to a cdrom to abort audio playback)
|
|
#define CLASS_SPECIAL_NO_QUEUE_LOCK 0x00000008
|
|
|
|
// Disable write cache due to known bugs
|
|
#define CLASS_SPECIAL_DISABLE_WRITE_CACHE 0x00000010
|
|
|
|
//
|
|
// Special interpretation of "device not ready / cause not reportable" for
|
|
// devices which don't tell us they need to be spun up manually after they
|
|
// spin themselves down behind our back.
|
|
//
|
|
// The down side of this is that if the drive chooses to report
|
|
// "device not ready / cause not reportable" to mean "no media in device"
|
|
// or any other error which really does require user intervention NT will
|
|
// waste a large amount of time trying to spin up a disk which can't be spun
|
|
// up.
|
|
//
|
|
|
|
#define CLASS_SPECIAL_CAUSE_NOT_REPORTABLE_HACK 0x00000020
|
|
|
|
// Disabling the write cache is not supported on this device
|
|
#define CLASS_SPECIAL_DISABLE_WRITE_CACHE_NOT_SUPPORTED 0x00000040
|
|
|
|
#define CLASS_SPECIAL_VALID_MASK 0x0000007B
|
|
#define CLASS_SPECIAL_RESERVED (~CLASS_SPECIAL_VALID_MASK)
|
|
|
|
|
|
//
|
|
// Restricted - May only append to this structure for backwards compatibility
|
|
//
|
|
typedef struct _PHYSICAL_DEVICE_EXTENSION {
|
|
|
|
//
|
|
// Common extension data
|
|
//
|
|
|
|
union {
|
|
struct {
|
|
ULONG Version;
|
|
PDEVICE_OBJECT DeviceObject;
|
|
};
|
|
COMMON_DEVICE_EXTENSION CommonExtension;
|
|
};
|
|
|
|
//
|
|
// Indicates that the pdo no longer physically exits.
|
|
//
|
|
|
|
BOOLEAN IsMissing;
|
|
|
|
//
|
|
// Indicates that the PDO has been handed out to the PNP system.
|
|
//
|
|
|
|
BOOLEAN IsEnumerated;
|
|
|
|
//
|
|
// Hold new private data that only classpnp should modify
|
|
// in this structure.
|
|
//
|
|
|
|
PCLASS_PRIVATE_PDO_DATA PrivatePdoData;
|
|
|
|
//
|
|
// for future expandability
|
|
// leave these at the end of the structure.
|
|
//
|
|
|
|
ULONG_PTR Reserved2;
|
|
ULONG_PTR Reserved3;
|
|
ULONG_PTR Reserved4;
|
|
|
|
} PHYSICAL_DEVICE_EXTENSION, *PPHYSICAL_DEVICE_EXTENSION;
|
|
|
|
//
|
|
// Indicates that the device has write caching enabled.
|
|
//
|
|
|
|
#define DEV_WRITE_CACHE 0x00000001
|
|
|
|
//
|
|
// Build SCSI 1 or SCSI 2 CDBs
|
|
//
|
|
|
|
#define DEV_USE_SCSI1 0x00000002
|
|
|
|
//
|
|
// Indicates whether is is safe to send StartUnit commands
|
|
// to this device. It will only be off for some removeable devices.
|
|
//
|
|
|
|
#define DEV_SAFE_START_UNIT 0x00000004
|
|
|
|
//
|
|
// Indicates whether it is unsafe to send SCSIOP_MECHANISM_STATUS commands to
|
|
// this device. Some devices don't like these 12 byte commands
|
|
//
|
|
|
|
#define DEV_NO_12BYTE_CDB 0x00000008
|
|
|
|
//
|
|
// Define context structure for asynchronous completions.
|
|
//
|
|
|
|
typedef struct _COMPLETION_CONTEXT {
|
|
PDEVICE_OBJECT DeviceObject;
|
|
SCSI_REQUEST_BLOCK Srb;
|
|
}COMPLETION_CONTEXT, *PCOMPLETION_CONTEXT;
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
ULONG
|
|
ClassInitialize(
|
|
IN PVOID Argument1,
|
|
IN PVOID Argument2,
|
|
IN PCLASS_INIT_DATA InitializationData
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
|
|
//
|
|
// The Data Parameter contains a pointer to a CLASS_QUERY_WMI_REGINFO_EX_LIST
|
|
// structure that specifies callbacks that are used instead of the
|
|
// PCLASS_QUERY_WMI_REGINFO callbacks.
|
|
//
|
|
// {00E34B11-2444-4745-A53D-620100CD82F7}
|
|
#define GUID_CLASSPNP_QUERY_REGINFOEX { 0xe34b11, 0x2444, 0x4745, { 0xa5, 0x3d, 0x62, 0x1, 0x0, 0xcd, 0x82, 0xf7 } }
|
|
|
|
typedef struct _CLASS_QUERY_WMI_REGINFO_EX_LIST
|
|
{
|
|
ULONG Size; // Should be sizeof(CLASS_QUERY_REGINFO_EX_LIST)
|
|
|
|
PCLASS_QUERY_WMI_REGINFO_EX ClassFdoQueryWmiRegInfoEx;
|
|
PCLASS_QUERY_WMI_REGINFO_EX ClassPdoQueryWmiRegInfoEx;
|
|
|
|
} CLASS_QUERY_WMI_REGINFO_EX_LIST, *PCLASS_QUERY_WMI_REGINFO_EX_LIST;
|
|
|
|
|
|
|
|
SCSIPORT_API
|
|
ULONG
|
|
ClassInitializeEx(
|
|
IN PDRIVER_OBJECT DriverObject,
|
|
IN LPGUID Guid,
|
|
IN PVOID Data
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
NTSTATUS
|
|
ClassCreateDeviceObject(
|
|
IN PDRIVER_OBJECT DriverObject,
|
|
IN PCCHAR ObjectNameBuffer,
|
|
IN PDEVICE_OBJECT LowerDeviceObject,
|
|
IN BOOLEAN IsFdo,
|
|
IN OUT PDEVICE_OBJECT *DeviceObject
|
|
);
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
NTSTATUS
|
|
ClassReadDriveCapacity(
|
|
IN PDEVICE_OBJECT DeviceObject
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
VOID
|
|
ClassReleaseQueue(
|
|
IN PDEVICE_OBJECT DeviceObject
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
VOID
|
|
ClassSplitRequest(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp,
|
|
IN ULONG MaximumBytes
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
NTSTATUS
|
|
ClassDeviceControl(
|
|
PDEVICE_OBJECT DeviceObject,
|
|
PIRP Irp
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
NTSTATUS
|
|
ClassIoComplete(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp,
|
|
IN PVOID Context
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
NTSTATUS
|
|
ClassIoCompleteAssociated(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp,
|
|
IN PVOID Context
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
BOOLEAN
|
|
ClassInterpretSenseInfo(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PSCSI_REQUEST_BLOCK Srb,
|
|
IN UCHAR MajorFunctionCode,
|
|
IN ULONG IoDeviceCode,
|
|
IN ULONG RetryCount,
|
|
OUT NTSTATUS *Status,
|
|
OUT ULONG *RetryInterval
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
VOID
|
|
ClassSendDeviceIoControlSynchronous(
|
|
IN ULONG IoControlCode,
|
|
IN PDEVICE_OBJECT TargetDeviceObject,
|
|
IN OUT PVOID Buffer OPTIONAL,
|
|
IN ULONG InputBufferLength,
|
|
IN ULONG OutputBufferLength,
|
|
IN BOOLEAN InternalDeviceIoControl,
|
|
OUT PIO_STATUS_BLOCK IoStatus
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
NTSTATUS
|
|
ClassSendIrpSynchronous(
|
|
IN PDEVICE_OBJECT TargetDeviceObject,
|
|
IN PIRP Irp
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
NTSTATUS
|
|
ClassForwardIrpSynchronous(
|
|
IN PCOMMON_DEVICE_EXTENSION CommonExtension,
|
|
IN PIRP Irp
|
|
);
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
NTSTATUS
|
|
ClassSendSrbSynchronous(
|
|
PDEVICE_OBJECT DeviceObject,
|
|
PSCSI_REQUEST_BLOCK Srb,
|
|
PVOID BufferAddress,
|
|
ULONG BufferLength,
|
|
BOOLEAN WriteToDevice
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
NTSTATUS
|
|
ClassSendSrbAsynchronous(
|
|
PDEVICE_OBJECT DeviceObject,
|
|
PSCSI_REQUEST_BLOCK Srb,
|
|
PIRP Irp,
|
|
PVOID BufferAddress,
|
|
ULONG BufferLength,
|
|
BOOLEAN WriteToDevice
|
|
);
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
NTSTATUS
|
|
ClassBuildRequest(
|
|
PDEVICE_OBJECT DeviceObject,
|
|
PIRP Irp
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
ULONG
|
|
ClassModeSense(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PCHAR ModeSenseBuffer,
|
|
IN ULONG Length,
|
|
IN UCHAR PageMode
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
PVOID
|
|
ClassFindModePage(
|
|
IN PCHAR ModeSenseBuffer,
|
|
IN ULONG Length,
|
|
IN UCHAR PageMode,
|
|
IN BOOLEAN Use6Byte
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
NTSTATUS
|
|
ClassClaimDevice(
|
|
IN PDEVICE_OBJECT LowerDeviceObject,
|
|
IN BOOLEAN Release
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
NTSTATUS
|
|
ClassInternalIoControl (
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\utils.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
VOID
|
|
ClassInitializeSrbLookasideList(
|
|
IN PCOMMON_DEVICE_EXTENSION CommonExtension,
|
|
IN ULONG NumberElements
|
|
);
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\utils.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
VOID
|
|
ClassDeleteSrbLookasideList(
|
|
IN PCOMMON_DEVICE_EXTENSION CommonExtension
|
|
);
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
ULONG
|
|
ClassQueryTimeOutRegistryValue(
|
|
IN PDEVICE_OBJECT DeviceObject
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
NTSTATUS
|
|
ClassGetDescriptor(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PSTORAGE_PROPERTY_ID PropertyId,
|
|
OUT PVOID *Descriptor
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
VOID
|
|
ClassInvalidateBusRelations(
|
|
IN PDEVICE_OBJECT Fdo
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
VOID
|
|
ClassMarkChildrenMissing(
|
|
IN PFUNCTIONAL_DEVICE_EXTENSION Fdo
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
BOOLEAN
|
|
ClassMarkChildMissing(
|
|
IN PPHYSICAL_DEVICE_EXTENSION PdoExtension,
|
|
IN BOOLEAN AcquireChildLock
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
VOID
|
|
ClassDebugPrint(
|
|
CLASS_DEBUG_LEVEL DebugPrintLevel,
|
|
PCCHAR DebugMessage,
|
|
...
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
PCLASS_DRIVER_EXTENSION
|
|
ClassGetDriverExtension(
|
|
IN PDRIVER_OBJECT DriverObject
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\lock.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
VOID
|
|
ClassCompleteRequest(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp,
|
|
IN CCHAR PriorityBoost
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\lock.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
VOID
|
|
ClassReleaseRemoveLock(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN OPTIONAL PIRP Irp
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\lock.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
ULONG
|
|
ClassAcquireRemoveLockEx(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN OPTIONAL PVOID Tag,
|
|
IN PCSTR File,
|
|
IN ULONG Line
|
|
);
|
|
|
|
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
VOID
|
|
ClassUpdateInformationInRegistry(
|
|
IN PDEVICE_OBJECT Fdo,
|
|
IN PCHAR DeviceName,
|
|
IN ULONG DeviceNumber,
|
|
IN PINQUIRYDATA InquiryData,
|
|
IN ULONG InquiryDataLength
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\classwmi.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
NTSTATUS
|
|
ClassWmiCompleteRequest(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp,
|
|
IN NTSTATUS Status,
|
|
IN ULONG BufferUsed,
|
|
IN CCHAR PriorityBoost
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\classwmi.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
NTSTATUS
|
|
ClassWmiFireEvent(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN LPGUID Guid,
|
|
IN ULONG InstanceIndex,
|
|
IN ULONG EventDataSize,
|
|
IN PVOID EventData
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\autorun.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
VOID
|
|
ClassResetMediaChangeTimer(
|
|
IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\autorun.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
VOID
|
|
ClassInitializeMediaChangeDetection(
|
|
IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
|
|
IN PUCHAR EventPrefix
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\autorun.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
NTSTATUS
|
|
ClassInitializeTestUnitPolling(
|
|
IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
|
|
IN BOOLEAN AllowDriveToSleep
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
PVPB
|
|
ClassGetVpb(
|
|
IN PDEVICE_OBJECT DeviceObject
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\power.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
NTSTATUS
|
|
ClassSpinDownPowerHandler(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\power.c in ddk sources
|
|
|
|
--*/
|
|
NTSTATUS
|
|
ClassStopUnitPowerHandler(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\autorun.c in ddk sources
|
|
|
|
--*/
|
|
NTSTATUS
|
|
ClassSetFailurePredictionPoll(
|
|
PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
|
|
FAILURE_PREDICTION_METHOD FailurePredictionMethod,
|
|
ULONG PollingPeriod
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\autorun.c in ddk sources
|
|
|
|
--*/
|
|
VOID
|
|
ClassNotifyFailurePredicted(
|
|
PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
|
|
PUCHAR Buffer,
|
|
ULONG BufferSize,
|
|
BOOLEAN LogError,
|
|
ULONG UniqueErrorValue,
|
|
UCHAR PathId,
|
|
UCHAR TargetId,
|
|
UCHAR Lun
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
VOID
|
|
ClassAcquireChildLock(
|
|
IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
VOID
|
|
ClassReleaseChildLock(
|
|
IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
NTSTATUS
|
|
ClassSignalCompletion(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp,
|
|
IN PKEVENT Event
|
|
);
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
VOID
|
|
ClassSendStartUnit(
|
|
IN PDEVICE_OBJECT DeviceObject
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
NTSTATUS
|
|
ClassRemoveDevice(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN UCHAR RemoveType
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
NTSTATUS
|
|
ClassAsynchronousCompletion(
|
|
PDEVICE_OBJECT DeviceObject,
|
|
PIRP Irp,
|
|
PVOID Context
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\autorun.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
VOID
|
|
ClassCheckMediaState(
|
|
IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\class.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
NTSTATUS
|
|
ClassCheckVerifyComplete(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp,
|
|
IN PVOID Context
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\autorun.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
VOID
|
|
ClassSetMediaChangeState(
|
|
IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
|
|
IN MEDIA_CHANGE_DETECTION_STATE State,
|
|
IN BOOLEAN Wait
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\autorun.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
VOID
|
|
ClassEnableMediaChangeDetection(
|
|
IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\autorun.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
VOID
|
|
ClassDisableMediaChangeDetection(
|
|
IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\autorun.c in ddk sources
|
|
|
|
--*/
|
|
SCSIPORT_API
|
|
VOID
|
|
ClassCleanupMediaChangeDetection(
|
|
IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\utils.c in ddk sources
|
|
|
|
--*/
|
|
VOID
|
|
ClassGetDeviceParameter(
|
|
IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
|
|
IN PWSTR SubkeyName OPTIONAL,
|
|
IN PWSTR ParameterName,
|
|
IN OUT PULONG ParameterValue
|
|
);
|
|
|
|
|
|
/*++
|
|
|
|
Internal function - described in classpnp\utils.c in ddk sources
|
|
|
|
--*/
|
|
NTSTATUS
|
|
ClassSetDeviceParameter(
|
|
IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
|
|
IN PWSTR SubkeyName OPTIONAL,
|
|
IN PWSTR ParameterName,
|
|
IN ULONG ParameterValue
|
|
);
|
|
|
|
|
|
//
|
|
// could be #define, but this allows typechecking
|
|
//
|
|
|
|
__inline
|
|
BOOLEAN
|
|
PORT_ALLOCATED_SENSE(
|
|
IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
|
|
IN PSCSI_REQUEST_BLOCK Srb
|
|
)
|
|
{
|
|
return ((TEST_FLAG(Srb->SrbFlags, SRB_FLAGS_PORT_DRIVER_ALLOCSENSE) &&
|
|
TEST_FLAG(Srb->SrbFlags, SRB_FLAGS_FREE_SENSE_BUFFER)) &&
|
|
(Srb->SenseInfoBuffer != FdoExtension->SenseData)
|
|
);
|
|
}
|
|
|
|
__inline
|
|
VOID
|
|
FREE_PORT_ALLOCATED_SENSE_BUFFER(
|
|
IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
|
|
IN PSCSI_REQUEST_BLOCK Srb
|
|
)
|
|
{
|
|
ASSERT(TEST_FLAG(Srb->SrbFlags, SRB_FLAGS_PORT_DRIVER_ALLOCSENSE));
|
|
ASSERT(TEST_FLAG(Srb->SrbFlags, SRB_FLAGS_FREE_SENSE_BUFFER));
|
|
ASSERT(Srb->SenseInfoBuffer != FdoExtension->SenseData);
|
|
|
|
ExFreePool(Srb->SenseInfoBuffer);
|
|
Srb->SenseInfoBuffer = FdoExtension->SenseData;
|
|
Srb->SenseInfoBufferLength = SENSE_BUFFER_SIZE; // should be variable?
|
|
CLEAR_FLAG(Srb->SrbFlags, SRB_FLAGS_FREE_SENSE_BUFFER);
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
/*++////////////////////////////////////////////////////////////////////////////
|
|
|
|
PCLASS_SCAN_FOR_SPECIAL_HANDLER()
|
|
|
|
Routine Description:
|
|
|
|
This routine is a callback into the driver to set device-specific
|
|
flags based upon matches made to the device's inquiry data. Drivers
|
|
register for this callback using ClassRegisterScanForSpecial().
|
|
|
|
Irql:
|
|
|
|
This routine will be called at KIRQL == PASSIVE_LEVEL
|
|
|
|
Arguments:
|
|
|
|
DeviceObject is the device object the error occurred on.
|
|
|
|
Srb is the Srb that was being processed when the error occurred.
|
|
|
|
Status may be overwritten by the routine if it decides that the error
|
|
was benign, or otherwise wishes to change the returned status code
|
|
for this command
|
|
|
|
Retry may be overwritten to specify that this command should or should
|
|
not be retried (if the callee supports retrying commands)
|
|
|
|
Return Value:
|
|
|
|
status
|
|
|
|
--*/
|
|
typedef
|
|
VOID
|
|
(*PCLASS_SCAN_FOR_SPECIAL_HANDLER) (
|
|
IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
|
|
IN ULONG_PTR Data
|
|
);
|
|
|
|
VOID
|
|
ClassScanForSpecial(
|
|
IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
|
|
IN CLASSPNP_SCAN_FOR_SPECIAL_INFO DeviceList[],
|
|
IN PCLASS_SCAN_FOR_SPECIAL_HANDLER Function
|
|
);
|
|
|
|
|
|
#endif /* _CLASS_ */
|