2 * PROJECT: ReactOS Kernel
3 * LICENSE: GPL - See COPYING in the top level directory
4 * FILE: ntoskrnl/include/io.h
5 * PURPOSE: Internal header for the I/O Manager
6 * PROGRAMMERS: Alex Ionescu (alex.ionescu@reactos.org)
11 // Define this if you want debugging support
13 #define _IO_DEBUG_ 0x00
16 // These define the Debug Masks Supported
18 #define IO_IRP_DEBUG 0x01
19 #define IO_FILE_DEBUG 0x02
20 #define IO_API_DEBUG 0x04
21 #define IO_CTL_DEBUG 0x08
24 // Debug/Tracing support
27 #ifdef NEW_DEBUG_SYSTEM_IMPLEMENTED // enable when Debug Filters are implemented
28 #define IOTRACE(x, ...) \
30 DbgPrintEx("%s [%.16s] - ", \
32 PsGetCurrentProcess()->ImageFileName); \
33 DbgPrintEx(__VA_ARGS__); \
36 #define IOTRACE(x, ...) \
37 if (x & IopTraceLevel) \
39 DbgPrint("%s [%.16s] - ", \
41 PsGetCurrentProcess()->ImageFileName); \
42 DbgPrint(__VA_ARGS__); \
46 #define IOTRACE(x, ...) DPRINT(__VA_ARGS__)
50 // Registry path to the enumeration root key
52 #define ENUM_ROOT L"\\Registry\\Machine\\System\\CurrentControlSet\\Enum"
55 // Returns the type of METHOD_ used in this IOCTL
57 #define IO_METHOD_FROM_CTL_CODE(c) (c & 0x00000003)
60 // Bugcheck codes for RAM disk booting
63 // No LoaderXIPRom descriptor was found in the loader memory list
65 #define RD_NO_XIPROM_DESCRIPTOR 1
67 // Unable to open the RAM disk driver (ramdisk.sys or \Device\Ramdisk)
69 #define RD_NO_RAMDISK_DRIVER 2
71 // FSCTL_CREATE_RAM_DISK failed
73 #define RD_FSCTL_FAILED 3
75 // Unable to create GUID string from binary GUID
77 #define RD_GUID_CONVERT_FAILED 4
79 // Unable to create symbolic link pointing to the RAM disk device
81 #define RD_SYMLINK_CREATE_FAILED 5
84 // We can call the Ob Inlined API, it's the same thing
86 #define IopAllocateMdlFromLookaside \
87 ObpAllocateObjectCreateInfoBuffer
88 #define IopFreeMdlFromLookaside \
89 ObpFreeCapturedAttributes
92 // Determines if the IRP is Synchronous
94 #define IsIrpSynchronous(Irp, FileObject) \
95 ((Irp->Flags & IRP_SYNCHRONOUS_API) || \
98 FileObject->Flags & FO_SYNCHRONOUS_IO)) \
101 // Returns the internal Device Object Extension
103 #define IoGetDevObjExtension(DeviceObject) \
104 ((PEXTENDED_DEVOBJ_EXTENSION) \
105 (DeviceObject->DeviceObjectExtension)) \
108 // Returns the internal Driver Object Extension
110 #define IoGetDrvObjExtension(DriverObject) \
111 ((PEXTENDED_DRIVER_EXTENSION) \
112 (DriverObject->DriverExtension)) \
116 * IopDeviceNodeSetFlag(
117 * PDEVICE_NODE DeviceNode,
120 #define IopDeviceNodeSetFlag(DeviceNode, Flag) \
121 ((DeviceNode)->Flags |= (Flag))
125 * IopDeviceNodeClearFlag(
126 * PDEVICE_NODE DeviceNode,
129 #define IopDeviceNodeClearFlag(DeviceNode, Flag) \
130 ((DeviceNode)->Flags &= ~(Flag))
134 * IopDeviceNodeHasFlag(
135 * PDEVICE_NODE DeviceNode,
138 #define IopDeviceNodeHasFlag(DeviceNode, Flag) \
139 (((DeviceNode)->Flags & (Flag)) > 0)
143 * IopDeviceNodeSetUserFlag(
144 * PDEVICE_NODE DeviceNode,
147 #define IopDeviceNodeSetUserFlag(DeviceNode, UserFlag) \
148 ((DeviceNode)->UserFlags |= (UserFlag))
152 * IopDeviceNodeClearUserFlag(
153 * PDEVICE_NODE DeviceNode,
156 #define IopDeviceNodeClearUserFlag(DeviceNode, UserFlag)\
157 ((DeviceNode)->UserFlags &= ~(UserFlag))
161 * IopDeviceNodeHasUserFlag(
162 * PDEVICE_NODE DeviceNode,
165 #define IopDeviceNodeHasUserFlag(DeviceNode, UserFlag) \
166 (((DeviceNode)->UserFlags & (UserFlag)) > 0)
170 * IopDeviceNodeSetProblem(
171 * PDEVICE_NODE DeviceNode,
174 #define IopDeviceNodeSetProblem(DeviceNode, Problem) \
175 ((DeviceNode)->Problem |= (Problem))
179 * IopDeviceNodeClearProblem(
180 * PDEVICE_NODE DeviceNode,
183 #define IopDeviceNodeClearProblem(DeviceNode, Problem) \
184 ((DeviceNode)->Problem &= ~(Problem))
188 * IopDeviceNodeHasProblem(
189 * PDEVICE_NODE DeviceNode,
192 #define IopDeviceNodeHasProblem(DeviceNode, Problem) \
193 (((DeviceNode)->Problem & (Problem)) > 0)
197 * IopInitDeviceTreeTraverseContext(
198 * PDEVICETREE_TRAVERSE_CONTEXT DeviceTreeTraverseContext,
199 * PDEVICE_NODE DeviceNode,
200 * DEVICETREE_TRAVERSE_ROUTINE Action,
203 #define IopInitDeviceTreeTraverseContext( \
204 _DeviceTreeTraverseContext, _DeviceNode, _Action, \
206 (_DeviceTreeTraverseContext)->FirstDeviceNode = \
208 (_DeviceTreeTraverseContext)->Action = (_Action); \
209 (_DeviceTreeTraverseContext)->Context = (_Context); }
212 // Device List Operations
214 typedef enum _IOP_DEVICE_LIST_OPERATION
218 } IOP_DEVICE_LIST_OPERATION
, *PIOP_DEVICE_LIST_OPERATION
;
221 // Transfer statistics
223 typedef enum _IOP_TRANSFER_TYPE
228 } IOP_TRANSFER_TYPE
, *PIOP_TRANSFER_TYPE
;
231 // Packet Types when piggybacking on the IRP Overlay
233 typedef enum _COMPLETION_PACKET_TYPE
235 IopCompletionPacketIrp
,
236 IopCompletionPacketMini
,
237 IopCompletionPacketQuota
238 } COMPLETION_PACKET_TYPE
, *PCOMPLETION_PACKET_TYPE
;
241 // Special version of the IRP Overlay used to optimize I/O completion
242 // by not using up a separate structure.
244 typedef struct _IOP_MINI_COMPLETION_PACKET
248 LIST_ENTRY ListEntry
;
251 struct _IO_STACK_LOCATION
*CurrentStackLocation
;
258 ULONG_PTR IoStatusInformation
;
259 } IOP_MINI_COMPLETION_PACKET
, *PIOP_MINI_COMPLETION_PACKET
;
262 // I/O Completion Context for IoSetIoCompletionRoutineEx
264 typedef struct _IO_UNLOAD_SAFE_COMPLETION_CONTEXT
266 PDEVICE_OBJECT DeviceObject
;
268 PIO_COMPLETION_ROUTINE CompletionRoutine
;
269 } IO_UNLOAD_SAFE_COMPLETION_CONTEXT
, *PIO_UNLOAD_SAFE_COMPLETION_CONTEXT
;
272 // I/O Wrapper around the Executive Work Item
274 typedef struct _IO_WORKITEM
276 WORK_QUEUE_ITEM Item
;
277 PDEVICE_OBJECT DeviceObject
;
278 PIO_WORKITEM_ROUTINE WorkerRoutine
;
283 // I/O Wrapper around the Kernel Interrupt
285 typedef struct _IO_INTERRUPT
287 KINTERRUPT FirstInterrupt
;
288 PKINTERRUPT Interrupt
[MAXIMUM_PROCESSORS
];
290 } IO_INTERRUPT
, *PIO_INTERRUPT
;
293 // I/O Error Log Packet Header
295 typedef struct _ERROR_LOG_ENTRY
299 LIST_ENTRY ListEntry
;
300 PDEVICE_OBJECT DeviceObject
;
301 PDRIVER_OBJECT DriverObject
;
302 LARGE_INTEGER TimeStamp
;
303 } ERROR_LOG_ENTRY
, *PERROR_LOG_ENTRY
;
306 // Event Log LPC Message
308 typedef struct _ELF_API_MSG
312 IO_ERROR_LOG_MESSAGE IoErrorMessage
;
313 } ELF_API_MSG
, *PELF_API_MSG
;
316 // To simplify matters, the kernel is made to support both the checked and free
317 // version of the I/O Remove Lock in the same binary. This structure includes
318 // both, since the DDK has the structure with a compile-time #ifdef.
320 typedef struct _EXTENDED_IO_REMOVE_LOCK
322 IO_REMOVE_LOCK_COMMON_BLOCK Common
;
323 IO_REMOVE_LOCK_DBG_BLOCK Dbg
;
324 } EXTENDED_IO_REMOVE_LOCK
, *PEXTENDED_IO_REMOVE_LOCK
;
327 // Dummy File Object used inside the Open Packet so that OB knows how to
328 // deal with the Object Pointer even though it's not a real file.
330 typedef struct _DUMMY_FILE_OBJECT
332 OBJECT_HEADER ObjectHeader
;
333 CHAR FileObjectBody
[sizeof(FILE_OBJECT
)];
334 } DUMMY_FILE_OBJECT
, *PDUMMY_FILE_OBJECT
;
337 // Open packet used as a context for Device/File parsing so that the parse
338 // routine can know what operation is being requested.
340 typedef struct _OPEN_PACKET
344 PFILE_OBJECT FileObject
;
345 NTSTATUS FinalStatus
;
346 ULONG_PTR Information
;
348 PFILE_OBJECT RelatedFileObject
;
349 OBJECT_ATTRIBUTES OriginalAttributes
;
350 LARGE_INTEGER AllocationSize
;
352 USHORT FileAttributes
;
358 PFILE_BASIC_INFORMATION BasicInformation
;
359 PFILE_NETWORK_OPEN_INFORMATION NetworkInformation
;
360 CREATE_FILE_TYPE CreateFileType
;
361 PVOID MailslotOrPipeParameters
;
365 BOOLEAN FullAttributes
;
366 PDUMMY_FILE_OBJECT DummyFileObject
;
368 //PIO_DRIVER_CREATE_CONTEXT DriverCreateContext; Vista only, needs ROS DDK Update
369 } OPEN_PACKET
, *POPEN_PACKET
;
372 // Parameters packet for Load/Unload work item's context
374 typedef struct _LOAD_UNLOAD_PARAMS
377 PUNICODE_STRING ServiceName
;
378 WORK_QUEUE_ITEM WorkItem
;
380 PDRIVER_OBJECT DriverObject
;
381 } LOAD_UNLOAD_PARAMS
, *PLOAD_UNLOAD_PARAMS
;
384 // Boot Driver List Entry
386 typedef struct _DRIVER_INFORMATION
389 PDRIVER_OBJECT DriverObject
;
390 PBOOT_DRIVER_LIST_ENTRY DataTableEntry
;
391 HANDLE ServiceHandle
;
396 } DRIVER_INFORMATION
, *PDRIVER_INFORMATION
;
401 typedef struct _BOOT_DRIVER_NODE
403 BOOT_DRIVER_LIST_ENTRY ListEntry
;
404 UNICODE_STRING Group
;
408 } BOOT_DRIVER_NODE
, *PBOOT_DRIVER_NODE
;
411 // List of Bus Type GUIDs
413 typedef struct _IO_BUS_TYPE_GUID_LIST
418 } IO_BUS_TYPE_GUID_LIST
, *PIO_BUS_TYPE_GUID_LIST
;
419 extern PIO_BUS_TYPE_GUID_LIST IopBusTypeGuidList
;
422 // Shutdown entry for registed devices
424 typedef struct _SHUTDOWN_ENTRY
426 LIST_ENTRY ShutdownList
;
427 PDEVICE_OBJECT DeviceObject
;
428 } SHUTDOWN_ENTRY
, *PSHUTDOWN_ENTRY
;
431 // F/S Notification entry for registered File Systems
433 typedef struct _FS_CHANGE_NOTIFY_ENTRY
435 LIST_ENTRY FsChangeNotifyList
;
436 PDRIVER_OBJECT DriverObject
;
437 PDRIVER_FS_NOTIFICATION FSDNotificationProc
;
438 } FS_CHANGE_NOTIFY_ENTRY
, *PFS_CHANGE_NOTIFY_ENTRY
;
441 // Driver (Boot) Re-Initialization Entry
443 typedef struct _DRIVER_REINIT_ITEM
445 LIST_ENTRY ItemEntry
;
446 PDRIVER_OBJECT DriverObject
;
447 PDRIVER_REINITIALIZE ReinitRoutine
;
449 } DRIVER_REINIT_ITEM
, *PDRIVER_REINIT_ITEM
;
452 // Called on every visit of a node during a preorder-traversal of the device
454 // If the routine returns STATUS_UNSUCCESSFUL the traversal will stop and
455 // STATUS_SUCCESS is returned to the caller who initiated the tree traversal.
456 // Any other returned status code will be returned to the caller. If a status
457 // code that indicates an error (other than STATUS_UNSUCCESSFUL) is returned,
458 // the traversal is stopped immediately and the status code is returned to
463 (*DEVICETREE_TRAVERSE_ROUTINE
)(
464 IN PDEVICE_NODE DeviceNode
,
469 // Context information for traversing the device tree
471 typedef struct _DEVICETREE_TRAVERSE_CONTEXT
474 // Current device node during a traversal
476 PDEVICE_NODE DeviceNode
;
479 // Initial device node where we start the traversal
481 PDEVICE_NODE FirstDeviceNode
;
484 // Action routine to be called for every device node
486 DEVICETREE_TRAVERSE_ROUTINE Action
;
489 // Context passed to the action routine
492 } DEVICETREE_TRAVERSE_CONTEXT
, *PDEVICETREE_TRAVERSE_CONTEXT
;
499 IopCalculateResourceListSize(
500 IN PCM_RESOURCE_LIST ResourceList
505 IopAssignDeviceResources(
506 IN PDEVICE_NODE DeviceNode
514 PipCallDriverAddDevice(
515 IN PDEVICE_NODE DeviceNode
,
516 IN BOOLEAN LoadDriver
,
517 IN PDRIVER_OBJECT DriverObject
522 IopInitializePlugPlayServices(
538 IopInitDriverImplementation(
543 IopInitPnpNotificationImplementation(
548 IopNotifyPlugPlayNotification(
549 IN PDEVICE_OBJECT DeviceObject
,
550 IN IO_NOTIFICATION_EVENT_CATEGORY EventCategory
,
552 IN PVOID EventCategoryData1
,
553 IN PVOID EventCategoryData2
557 IopGetSystemPowerDeviceObject(
558 IN PDEVICE_OBJECT
*DeviceObject
563 PipAllocateDeviceNode(
564 IN PDEVICE_OBJECT PhysicalDeviceObject
569 IN PDEVICE_NODE ParentNode
,
570 IN PDEVICE_OBJECT PhysicalDeviceObject
,
571 IN PUNICODE_STRING ServiceName
,
572 OUT PDEVICE_NODE
*DeviceNode
577 IN PDEVICE_NODE DeviceNode
583 IN PDEVICE_OBJECT DeviceObject
,
584 IN PIO_STACK_LOCATION IoStackLocation
,
585 OUT PVOID
*Information
591 IN PDEVICE_OBJECT DeviceObject
,
592 IN PIO_STATUS_BLOCK IoStatusBlock
,
593 IN ULONG MinorFunction
,
594 IN PIO_STACK_LOCATION Stack
600 IN PDEVICE_OBJECT DeviceObject
604 IopActionConfigureChildServices(
605 IN PDEVICE_NODE DeviceNode
,
610 IopActionInitChildServices(
611 IN PDEVICE_NODE DeviceNode
,
617 IN PDEVICE_OBJECT DeviceObject
632 IopInitPlugPlayEvents(VOID
);
635 IopQueueTargetDeviceEvent(
637 PUNICODE_STRING DeviceIds
641 IopInitializePnpServices(
642 IN PDEVICE_NODE DeviceNode
);
646 IopOpenRegistryKeyEx(
649 PUNICODE_STRING Name
,
650 ACCESS_MASK DesiredAccess
);
657 OUT PKEY_VALUE_FULL_INFORMATION
*Information
662 IopCreateRegistryKeyEx(
664 IN HANDLE BaseHandle OPTIONAL
,
665 IN PUNICODE_STRING KeyName
,
666 IN ACCESS_MASK DesiredAccess
,
667 IN ULONG CreateOptions
,
668 OUT PULONG Disposition OPTIONAL
682 PiInitCacheGroupInformation(
688 PpInitGetGroupOrderIndex(
689 IN HANDLE ServiceHandle
694 PipGetDriverTagPriority(
695 IN HANDLE ServiceHandle
700 PnpRegMultiSzToUnicodeStrings(
701 IN PKEY_VALUE_FULL_INFORMATION KeyValueInformation
,
702 OUT PUNICODE_STRING
*UnicodeStringList
,
703 OUT PULONG UnicodeStringCount
710 IN ULONG RegSzLength
,
711 OUT PUSHORT StringLength OPTIONAL
715 // Initialization Routines
720 IN PLOADER_PARAMETER_BLOCK LoaderBlock
725 IopReassignSystemRoot(
726 IN PLOADER_PARAMETER_BLOCK LoaderBlock
,
727 OUT PANSI_STRING NtBootPath
733 IN PLOADER_PARAMETER_BLOCK LoaderBlock
737 // Device/Volume Routines
741 IopReadyDeviceObjects(
742 IN PDRIVER_OBJECT Driver
748 IN PDEVICE_NODE DeviceNode
,
749 IN PDRIVER_OBJECT DriverObject
754 IN PDEVICE_NODE DeviceNode
760 IN POPEN_PACKET OpenPacket
,
761 IN PDEVICE_OBJECT DeviceObject
,
762 IN PUNICODE_STRING RemainingName
,
769 IN PDEVICE_OBJECT DeviceObject
,
770 IN BOOLEAN AllowRawMount
,
771 IN BOOLEAN DeviceIsLocked
,
772 IN BOOLEAN Alertable
,
778 IN PVOID SymbolicLink
783 IN PVOID SymbolicLink
,
790 IN PDEVICE_OBJECT DeviceObject
801 IoInitFileSystemImplementation(
807 IoInitVpbImplementation(
813 IopReferenceDeviceObject(
814 IN PDEVICE_OBJECT DeviceObject
819 IopDereferenceDeviceObject(
820 IN PDEVICE_OBJECT DeviceObject
,
821 IN BOOLEAN ForceUnload
826 IoGetRelatedTargetDevice(IN PFILE_OBJECT FileObject
,
827 OUT PDEVICE_OBJECT
*DeviceObject
836 IN PFILE_OBJECT FileObject
,
837 IN PKEVENT EventObject
,
838 IN PVOID Buffer OPTIONAL
843 IopAbortInterruptedIrp(
844 IN PKEVENT EventObject
,
852 IoInitShutdownNotification(
864 IopShutdownBaseFileSystems(
865 IN PLIST_ENTRY ListHead
869 // Boot logging support
873 IN BOOLEAN StartBootLog
888 IN PUNICODE_STRING DriverName
,
893 IopSaveBootLogToFile(
898 // I/O Cancellation Routines
907 IoInitCancelHandling(
918 IN PKNORMAL_ROUTINE
* NormalRoutine
,
919 IN PVOID
* NormalContext
,
920 IN PVOID
* SystemArgument1
,
921 IN PVOID
* SystemArgument2
925 // Error Logging Routines
940 // Raw File System MiniDriver
943 RawFsIsRawFileSystemDeviceObject(
944 IN PDEVICE_OBJECT DeviceObject
950 IN PDRIVER_OBJECT DriverObject
,
951 IN PUNICODE_STRING RegistryPath
955 // PnP Root MiniDriver
960 IN PDRIVER_OBJECT DriverObject
,
961 IN PUNICODE_STRING RegistryPath
966 IN PUNICODE_STRING ServiceName
,
967 OUT PDEVICE_OBJECT
*PhysicalDeviceObject
,
968 OUT OPTIONAL PUNICODE_STRING FullInstancePath
976 IopInitializeBootDrivers(
982 IopInitializeSystemDrivers(
988 IopCreateDriver(IN PUNICODE_STRING DriverName OPTIONAL
,
989 IN PDRIVER_INITIALIZE InitializationFunction
,
990 IN PUNICODE_STRING RegistryPath
,
992 IN ULONG SizeOfImage
,
993 OUT PDRIVER_OBJECT
*pDriverObject
);
1004 OUT PDRIVER_OBJECT
*DriverObject
,
1005 IN PUNICODE_STRING ServiceName
,
1006 IN BOOLEAN FileSystem
1011 IopLoadServiceModule(
1012 IN PUNICODE_STRING ServiceName
,
1013 OUT PLDR_DATA_TABLE_ENTRY
*ModuleObject
1018 IopLoadUnloadDriver(
1019 IN OUT PLOAD_UNLOAD_PARAMS LoadParams
1024 IopInitializeDriverModule(
1025 IN PDEVICE_NODE DeviceNode
,
1026 IN PLDR_DATA_TABLE_ENTRY ModuleObject
,
1027 IN PUNICODE_STRING ServiceName
,
1028 IN BOOLEAN FileSystemDriver
,
1029 OUT PDRIVER_OBJECT
*DriverObject
1034 IopAttachFilterDrivers(
1035 IN PDEVICE_NODE DeviceNode
,
1041 IopReinitializeDrivers(
1047 IopReinitializeBootDrivers(
1056 IopDeleteDevice(IN PVOID ObjectBody
);
1061 IN PVOID ParseObject
,
1062 IN PVOID ObjectType
,
1063 IN OUT PACCESS_STATE AccessState
,
1064 IN KPROCESSOR_MODE AccessMode
,
1065 IN ULONG Attributes
,
1066 IN OUT PUNICODE_STRING CompleteName
,
1067 IN OUT PUNICODE_STRING RemainingName
,
1068 IN OUT PVOID Context OPTIONAL
,
1069 IN PSECURITY_QUALITY_OF_SERVICE SecurityQos OPTIONAL
,
1076 IN PVOID ParseObject
,
1077 IN PVOID ObjectType
,
1078 IN OUT PACCESS_STATE AccessState
,
1079 IN KPROCESSOR_MODE AccessMode
,
1080 IN ULONG Attributes
,
1081 IN OUT PUNICODE_STRING CompleteName
,
1082 IN OUT PUNICODE_STRING RemainingName
,
1083 IN OUT PVOID Context OPTIONAL
,
1084 IN PSECURITY_QUALITY_OF_SERVICE SecurityQos OPTIONAL
,
1097 IN PVOID ObjectBody
,
1098 IN SECURITY_OPERATION_CODE OperationCode
,
1099 IN PSECURITY_INFORMATION SecurityInformation
,
1100 IN OUT PSECURITY_DESCRIPTOR SecurityDescriptor
,
1101 IN OUT PULONG BufferLength
,
1102 OUT PSECURITY_DESCRIPTOR
*OldSecurityDescriptor
,
1103 IN POOL_TYPE PoolType
,
1104 IN OUT PGENERIC_MAPPING GenericMapping
1110 IN PVOID ObjectBody
,
1112 OUT POBJECT_NAME_INFORMATION ObjectNameInfo
,
1114 OUT PULONG ReturnLength
,
1115 IN KPROCESSOR_MODE PreviousMode
1121 IN PEPROCESS Process OPTIONAL
,
1123 IN ACCESS_MASK GrantedAccess
,
1124 IN ULONG ProcessHandleCount
,
1125 IN ULONG SystemHandleCount
1129 // I/O Timer Routines
1133 IopInitTimerImplementation(
1139 IopRemoveTimerFromTimerList(
1144 // I/O Completion Routines
1148 IopDeleteIoCompletion(
1158 IN PLOADER_PARAMETER_BLOCK LoaderBlock
1164 extern POBJECT_TYPE IoCompletionType
;
1165 extern PDEVICE_NODE IopRootDeviceNode
;
1166 extern KSPIN_LOCK IopDeviceTreeLock
;
1167 extern ULONG IopTraceLevel
;
1168 extern GENERAL_LOOKASIDE IopMdlLookasideList
;
1169 extern GENERIC_MAPPING IopCompletionMapping
;
1170 extern GENERIC_MAPPING IopFileMapping
;
1171 extern POBJECT_TYPE _IoFileObjectType
;
1172 extern HAL_DISPATCH _HalDispatchTable
;
1173 extern LIST_ENTRY IopErrorLogListHead
;
1174 extern ULONG IopNumTriageDumpDataBlocks
;
1175 extern PVOID IopTriageDumpDataBlocks
[64];
1176 extern PIO_BUS_TYPE_GUID_LIST PnpBusTypeGuidList
;
1177 extern PDRIVER_OBJECT IopRootDriverObject
;
1180 // Inlined Functions