windows-nt/Source/XPSP1/NT/base/hals/drivesup.c

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2020-09-26 03:20:57 -05:00
#if !defined(NO_LEGACY_DRIVERS)
/*++
Copyright (c) 1989 Microsoft Corporation
Module Name:
drivesup.c
Abstract:
This module contains the subroutines for drive support. This includes
such things as how drive letters are assigned on a particular platform,
how device partitioning works, etc.
Author:
Darryl E. Havens (darrylh) 23-Apr-1992
Environment:
Kernel mode
Revision History:
--*/
#include "halp.h"
#include "bugcodes.h"
#include "ntddft.h"
#include "ntdddisk.h"
#include "ntdskreg.h"
#include "stdio.h"
#include "string.h"
VOID
HalpAssignDriveLetters(
PLOADER_PARAMETER_BLOCK LoaderBlock,
PSTRING NtDeviceName,
OUT PUCHAR NtSystemPath,
OUT PSTRING NtSystemPathString
);
NTSTATUS
HalpReadPartitionTable(
IN PDEVICE_OBJECT DeviceObject,
IN ULONG SectorSize,
IN BOOLEAN ReturnRecognizedPartitions,
OUT PDRIVE_LAYOUT_INFORMATION *PartitionBuffer
);
NTSTATUS
HalpSetPartitionInformation(
IN PDEVICE_OBJECT DeviceObject,
IN ULONG SectorSize,
IN ULONG PartitionNumber,
IN ULONG PartitionType
);
NTSTATUS
HalpWritePartitionTable(
IN PDEVICE_OBJECT DeviceObject,
IN ULONG SectorSize,
IN ULONG SectorsPerTrack,
IN ULONG NumberOfHeads,
IN PDRIVE_LAYOUT_INFORMATION PartitionBuffer
);
NTKERNELAPI
VOID
FASTCALL
IoAssignDriveLetters(
PLOADER_PARAMETER_BLOCK LoaderBlock,
PSTRING NtDeviceName,
OUT PUCHAR NtSystemPath,
OUT PSTRING NtSystemPathString
);
NTKERNELAPI
NTSTATUS
FASTCALL
IoReadPartitionTable(
IN PDEVICE_OBJECT DeviceObject,
IN ULONG SectorSize,
IN BOOLEAN ReturnRecognizedPartitions,
OUT PDRIVE_LAYOUT_INFORMATION *PartitionBuffer
);
NTKERNELAPI
NTSTATUS
FASTCALL
IoSetPartitionInformation(
IN PDEVICE_OBJECT DeviceObject,
IN ULONG SectorSize,
IN ULONG PartitionNumber,
IN ULONG PartitionType
);
NTKERNELAPI
NTSTATUS
FASTCALL
IoWritePartitionTable(
IN PDEVICE_OBJECT DeviceObject,
IN ULONG SectorSize,
IN ULONG SectorsPerTrack,
IN ULONG NumberOfHeads,
IN PDRIVE_LAYOUT_INFORMATION PartitionBuffer
);
#ifdef ALLOC_PRAGMA
#pragma alloc_text(PAGE, HalpAssignDriveLetters)
#pragma alloc_text(PAGE, HalpReadPartitionTable)
#pragma alloc_text(PAGE, HalpSetPartitionInformation)
#pragma alloc_text(PAGE, HalpWritePartitionTable)
#endif
VOID
HalpAssignDriveLetters(
PLOADER_PARAMETER_BLOCK LoaderBlock,
PSTRING NtDeviceName,
OUT PUCHAR NtSystemPath,
OUT PSTRING NtSystemPathString
)
{
//
// Stub to call extensible routine in ke so that hal vendors
// don't have to support.
//
IoAssignDriveLetters(
LoaderBlock,
NtDeviceName,
NtSystemPath,
NtSystemPathString
);
}
NTSTATUS
HalpReadPartitionTable(
IN PDEVICE_OBJECT DeviceObject,
IN ULONG SectorSize,
IN BOOLEAN ReturnRecognizedPartitions,
OUT PDRIVE_LAYOUT_INFORMATION *PartitionBuffer
)
{
//
// Stub to call extensible routine in ke so that hal vendors
// don't have to support.
//
return IoReadPartitionTable(
DeviceObject,
SectorSize,
ReturnRecognizedPartitions,
PartitionBuffer
);
}
NTSTATUS
HalpSetPartitionInformation(
IN PDEVICE_OBJECT DeviceObject,
IN ULONG SectorSize,
IN ULONG PartitionNumber,
IN ULONG PartitionType
)
{
//
// Stub to call extensible routine in ke so that hal vendors
// don't have to support.
//
return IoSetPartitionInformation(
DeviceObject,
SectorSize,
PartitionNumber,
PartitionType
);
}
NTSTATUS
HalpWritePartitionTable(
IN PDEVICE_OBJECT DeviceObject,
IN ULONG SectorSize,
IN ULONG SectorsPerTrack,
IN ULONG NumberOfHeads,
IN PDRIVE_LAYOUT_INFORMATION PartitionBuffer
)
{
//
// Stub to call extensible routine in ke so that hal vendors
// don't have to support.
//
return IoWritePartitionTable(
DeviceObject,
SectorSize,
SectorsPerTrack,
NumberOfHeads,
PartitionBuffer
);
}
#endif // NO_LEGACY_DRIVERS