Source code of Windows XP (NT5)
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/*++
Copyright (c) Microsoft Corporation. All rights reserved.
Module Name:
partmgrp.h
Abstract:
This file defines the public interfaces for the PARTMGR driver.
Author:
norbertk
Revision History:
--*/
//
// Define IOCTL so that volume managers can get another crack at
// partitions that are unclaimed.
//
#define IOCTL_PARTMGR_CHECK_UNCLAIMED_PARTITIONS CTL_CODE('p', 0, METHOD_BUFFERED, FILE_ANY_ACCESS)
//
// This IOCTL is for clusters to tell the volume managers for the
// given disk to stop using it. You can undo this operation with
// IOCTL_PARTMGR_CHECK_UNCLAIMED_PARTITIONS.
//
#define IOCTL_PARTMGR_EJECT_VOLUME_MANAGERS CTL_CODE('p', 1, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
//
// This IOCTL usually just returns the MBR disk signature that is contained
// on the disk but may return a 'future' version of the disk signature during
// boot. This separate call is needed so that if the signature on the boot
// disk is not unique or 0, that it still stays as the old value long enough
// for the system to find it from the loader block.
//
#define IOCTL_PARTMGR_QUERY_DISK_SIGNATURE CTL_CODE('p', 2, METHOD_BUFFERED, FILE_READ_ACCESS)
//
// This structure is the return value for IOCTL_PARTMGR_QUERY_DISK_SIGNATURE.
//
typedef struct _PARTMGR_DISK_SIGNATURE {
ULONG Signature;
} PARTMGR_DISK_SIGNATURE, *PPARTMGR_DISK_SIGNATURE;