53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
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/*++
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Copyright (c) Microsoft Corporation. All rights reserved.
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Module Name:
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partmgrp.h
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Abstract:
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This file defines the public interfaces for the PARTMGR driver.
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Author:
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norbertk
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Revision History:
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--*/
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//
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// Define IOCTL so that volume managers can get another crack at
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// partitions that are unclaimed.
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//
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#define IOCTL_PARTMGR_CHECK_UNCLAIMED_PARTITIONS CTL_CODE('p', 0, METHOD_BUFFERED, FILE_ANY_ACCESS)
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//
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// This IOCTL is for clusters to tell the volume managers for the
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// given disk to stop using it. You can undo this operation with
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// IOCTL_PARTMGR_CHECK_UNCLAIMED_PARTITIONS.
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//
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#define IOCTL_PARTMGR_EJECT_VOLUME_MANAGERS CTL_CODE('p', 1, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
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//
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// This IOCTL usually just returns the MBR disk signature that is contained
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// on the disk but may return a 'future' version of the disk signature during
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// boot. This separate call is needed so that if the signature on the boot
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// disk is not unique or 0, that it still stays as the old value long enough
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// for the system to find it from the loader block.
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//
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#define IOCTL_PARTMGR_QUERY_DISK_SIGNATURE CTL_CODE('p', 2, METHOD_BUFFERED, FILE_READ_ACCESS)
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//
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// This structure is the return value for IOCTL_PARTMGR_QUERY_DISK_SIGNATURE.
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//
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typedef struct _PARTMGR_DISK_SIGNATURE {
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ULONG Signature;
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} PARTMGR_DISK_SIGNATURE, *PPARTMGR_DISK_SIGNATURE;
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