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reactos/base/setup/lib/partlist.c
Hermès Bélusca-Maïto cacae6d9a0
[SETUPLIB][USETUP] Diverse additions. 
- Use NT string safe functions.
- Add support for other bootloaders;
- Update a couple of comments;
- Remove deprecated __REACTOS__ #ifdefs.

svn path=/branches/setup_improvements/; revision=74713
2018-06-03 22:12:45 +02:00

3183 lines
104 KiB
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/*
* PROJECT: ReactOS Setup Library
* LICENSE: GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
* PURPOSE: Partition list functions
* COPYRIGHT: Copyright 2003-2018 Casper S. Hornstrup (chorns@users.sourceforge.net)
*/
#include "precomp.h"
#include <ntddscsi.h>
#include "partlist.h"
#include "fsutil.h"
#define NDEBUG
#include <debug.h>
//#define DUMP_PARTITION_TABLE
#include <pshpack1.h>
typedef struct _REG_DISK_MOUNT_INFO
{
ULONG Signature;
LARGE_INTEGER StartingOffset;
} REG_DISK_MOUNT_INFO, *PREG_DISK_MOUNT_INFO;
#include <poppack.h>
/* FUNCTIONS ****************************************************************/
#ifdef DUMP_PARTITION_TABLE
static
VOID
DumpPartitionTable(
PDISKENTRY DiskEntry)
{
PPARTITION_INFORMATION PartitionInfo;
ULONG i;
DbgPrint("\n");
DbgPrint("Index Start Length Hidden Nr Type Boot RW\n");
DbgPrint("----- ------------ ------------ ---------- -- ---- ---- --\n");
for (i = 0; i < DiskEntry->LayoutBuffer->PartitionCount; i++)
{
PartitionInfo = &DiskEntry->LayoutBuffer->PartitionEntry[i];
DbgPrint(" %3lu %12I64u %12I64u %10lu %2lu %2x %c %c\n",
i,
PartitionInfo->StartingOffset.QuadPart / DiskEntry->BytesPerSector,
PartitionInfo->PartitionLength.QuadPart / DiskEntry->BytesPerSector,
PartitionInfo->HiddenSectors,
PartitionInfo->PartitionNumber,
PartitionInfo->PartitionType,
PartitionInfo->BootIndicator ? '*': ' ',
PartitionInfo->RewritePartition ? 'Y': 'N');
}
DbgPrint("\n");
}
#endif
ULONGLONG
AlignDown(
IN ULONGLONG Value,
IN ULONG Alignment)
{
ULONGLONG Temp;
Temp = Value / Alignment;
return Temp * Alignment;
}
ULONGLONG
AlignUp(
IN ULONGLONG Value,
IN ULONG Alignment)
{
ULONGLONG Temp, Result;
Temp = Value / Alignment;
Result = Temp * Alignment;
if (Value % Alignment)
Result += Alignment;
return Result;
}
ULONGLONG
RoundingDivide(
IN ULONGLONG Dividend,
IN ULONGLONG Divisor)
{
return (Dividend + Divisor / 2) / Divisor;
}
static
VOID
GetDriverName(
IN PDISKENTRY DiskEntry)
{
RTL_QUERY_REGISTRY_TABLE QueryTable[2];
WCHAR KeyName[32];
NTSTATUS Status;
RtlInitUnicodeString(&DiskEntry->DriverName,
NULL);
RtlStringCchPrintfW(KeyName, ARRAYSIZE(KeyName),
L"\\Scsi\\Scsi Port %hu",
DiskEntry->Port);
RtlZeroMemory(&QueryTable,
sizeof(QueryTable));
QueryTable[0].Name = L"Driver";
QueryTable[0].Flags = RTL_QUERY_REGISTRY_DIRECT;
QueryTable[0].EntryContext = &DiskEntry->DriverName;
Status = RtlQueryRegistryValues(RTL_REGISTRY_DEVICEMAP,
KeyName,
QueryTable,
NULL,
NULL);
if (!NT_SUCCESS(Status))
{
DPRINT1("RtlQueryRegistryValues() failed (Status %lx)\n", Status);
}
}
static
VOID
AssignDriveLetters(
IN PPARTLIST List)
{
PDISKENTRY DiskEntry;
PPARTENTRY PartEntry;
PLIST_ENTRY Entry1;
PLIST_ENTRY Entry2;
CHAR Letter;
Letter = 'C';
/* Assign drive letters to primary partitions */
Entry1 = List->DiskListHead.Flink;
while (Entry1 != &List->DiskListHead)
{
DiskEntry = CONTAINING_RECORD(Entry1, DISKENTRY, ListEntry);
Entry2 = DiskEntry->PrimaryPartListHead.Flink;
while (Entry2 != &DiskEntry->PrimaryPartListHead)
{
PartEntry = CONTAINING_RECORD(Entry2, PARTENTRY, ListEntry);
PartEntry->DriveLetter = 0;
if (PartEntry->IsPartitioned &&
!IsContainerPartition(PartEntry->PartitionType))
{
if (IsRecognizedPartition(PartEntry->PartitionType) ||
(PartEntry->PartitionType == PARTITION_ENTRY_UNUSED &&
PartEntry->SectorCount.QuadPart != 0LL))
{
if (Letter <= 'Z')
{
PartEntry->DriveLetter = Letter;
Letter++;
}
}
}
Entry2 = Entry2->Flink;
}
Entry1 = Entry1->Flink;
}
/* Assign drive letters to logical drives */
Entry1 = List->DiskListHead.Flink;
while (Entry1 != &List->DiskListHead)
{
DiskEntry = CONTAINING_RECORD(Entry1, DISKENTRY, ListEntry);
Entry2 = DiskEntry->LogicalPartListHead.Flink;
while (Entry2 != &DiskEntry->LogicalPartListHead)
{
PartEntry = CONTAINING_RECORD(Entry2, PARTENTRY, ListEntry);
PartEntry->DriveLetter = 0;
if (PartEntry->IsPartitioned)
{
if (IsRecognizedPartition(PartEntry->PartitionType) ||
(PartEntry->PartitionType == PARTITION_ENTRY_UNUSED &&
PartEntry->SectorCount.QuadPart != 0LL))
{
if (Letter <= 'Z')
{
PartEntry->DriveLetter = Letter;
Letter++;
}
}
}
Entry2 = Entry2->Flink;
}
Entry1 = Entry1->Flink;
}
}
static NTSTATUS
NTAPI
DiskIdentifierQueryRoutine(
PWSTR ValueName,
ULONG ValueType,
PVOID ValueData,
ULONG ValueLength,
PVOID Context,
PVOID EntryContext)
{
PBIOSDISKENTRY BiosDiskEntry = (PBIOSDISKENTRY)Context;
UNICODE_STRING NameU;
if (ValueType == REG_SZ &&
ValueLength == 20 * sizeof(WCHAR))
{
NameU.Buffer = (PWCHAR)ValueData;
NameU.Length = NameU.MaximumLength = 8 * sizeof(WCHAR);
RtlUnicodeStringToInteger(&NameU, 16, &BiosDiskEntry->Checksum);
NameU.Buffer = (PWCHAR)ValueData + 9;
RtlUnicodeStringToInteger(&NameU, 16, &BiosDiskEntry->Signature);
return STATUS_SUCCESS;
}
return STATUS_UNSUCCESSFUL;
}
static NTSTATUS
NTAPI
DiskConfigurationDataQueryRoutine(
PWSTR ValueName,
ULONG ValueType,
PVOID ValueData,
ULONG ValueLength,
PVOID Context,
PVOID EntryContext)
{
PBIOSDISKENTRY BiosDiskEntry = (PBIOSDISKENTRY)Context;
PCM_FULL_RESOURCE_DESCRIPTOR FullResourceDescriptor;
PCM_DISK_GEOMETRY_DEVICE_DATA DiskGeometry;
ULONG i;
if (ValueType != REG_FULL_RESOURCE_DESCRIPTOR ||
ValueLength < sizeof(CM_FULL_RESOURCE_DESCRIPTOR))
return STATUS_UNSUCCESSFUL;
FullResourceDescriptor = (PCM_FULL_RESOURCE_DESCRIPTOR)ValueData;
/* Hm. Version and Revision are not set on Microsoft Windows XP... */
#if 0
if (FullResourceDescriptor->PartialResourceList.Version != 1 ||
FullResourceDescriptor->PartialResourceList.Revision != 1)
return STATUS_UNSUCCESSFUL;
#endif
for (i = 0; i < FullResourceDescriptor->PartialResourceList.Count; i++)
{
if (FullResourceDescriptor->PartialResourceList.PartialDescriptors[i].Type != CmResourceTypeDeviceSpecific ||
FullResourceDescriptor->PartialResourceList.PartialDescriptors[i].u.DeviceSpecificData.DataSize != sizeof(CM_DISK_GEOMETRY_DEVICE_DATA))
continue;
DiskGeometry = (PCM_DISK_GEOMETRY_DEVICE_DATA)&FullResourceDescriptor->PartialResourceList.PartialDescriptors[i + 1];
BiosDiskEntry->DiskGeometry = *DiskGeometry;
return STATUS_SUCCESS;
}
return STATUS_UNSUCCESSFUL;
}
static NTSTATUS
NTAPI
SystemConfigurationDataQueryRoutine(
PWSTR ValueName,
ULONG ValueType,
PVOID ValueData,
ULONG ValueLength,
PVOID Context,
PVOID EntryContext)
{
PCM_FULL_RESOURCE_DESCRIPTOR FullResourceDescriptor;
PCM_INT13_DRIVE_PARAMETER* Int13Drives = (PCM_INT13_DRIVE_PARAMETER*)Context;
ULONG i;
if (ValueType != REG_FULL_RESOURCE_DESCRIPTOR ||
ValueLength < sizeof(CM_FULL_RESOURCE_DESCRIPTOR))
return STATUS_UNSUCCESSFUL;
FullResourceDescriptor = (PCM_FULL_RESOURCE_DESCRIPTOR)ValueData;
/* Hm. Version and Revision are not set on Microsoft Windows XP... */
#if 0
if (FullResourceDescriptor->PartialResourceList.Version != 1 ||
FullResourceDescriptor->PartialResourceList.Revision != 1)
return STATUS_UNSUCCESSFUL;
#endif
for (i = 0; i < FullResourceDescriptor->PartialResourceList.Count; i++)
{
if (FullResourceDescriptor->PartialResourceList.PartialDescriptors[i].Type != CmResourceTypeDeviceSpecific ||
FullResourceDescriptor->PartialResourceList.PartialDescriptors[i].u.DeviceSpecificData.DataSize % sizeof(CM_INT13_DRIVE_PARAMETER) != 0)
continue;
*Int13Drives = (CM_INT13_DRIVE_PARAMETER*)RtlAllocateHeap(ProcessHeap, 0,
FullResourceDescriptor->PartialResourceList.PartialDescriptors[i].u.DeviceSpecificData.DataSize);
if (*Int13Drives == NULL)
return STATUS_NO_MEMORY;
memcpy(*Int13Drives,
&FullResourceDescriptor->PartialResourceList.PartialDescriptors[i + 1],
FullResourceDescriptor->PartialResourceList.PartialDescriptors[i].u.DeviceSpecificData.DataSize);
return STATUS_SUCCESS;
}
return STATUS_UNSUCCESSFUL;
}
#define ROOT_NAME L"\\Registry\\Machine\\HARDWARE\\DESCRIPTION\\System\\MultifunctionAdapter"
static VOID
EnumerateBiosDiskEntries(
IN PPARTLIST PartList)
{
RTL_QUERY_REGISTRY_TABLE QueryTable[3];
WCHAR Name[120];
ULONG AdapterCount;
ULONG DiskCount;
NTSTATUS Status;
PCM_INT13_DRIVE_PARAMETER Int13Drives;
PBIOSDISKENTRY BiosDiskEntry;
memset(QueryTable, 0, sizeof(QueryTable));
QueryTable[1].Name = L"Configuration Data";
QueryTable[1].QueryRoutine = SystemConfigurationDataQueryRoutine;
Int13Drives = NULL;
Status = RtlQueryRegistryValues(RTL_REGISTRY_ABSOLUTE,
L"\\Registry\\Machine\\HARDWARE\\DESCRIPTION\\System",
&QueryTable[1],
(PVOID)&Int13Drives,
NULL);
if (!NT_SUCCESS(Status))
{
DPRINT1("Unable to query the 'Configuration Data' key in '\\Registry\\Machine\\HARDWARE\\DESCRIPTION\\System', status=%lx\n", Status);
return;
}
AdapterCount = 0;
while (1)
{
RtlStringCchPrintfW(Name, ARRAYSIZE(Name),
L"%s\\%lu",
ROOT_NAME, AdapterCount);
Status = RtlQueryRegistryValues(RTL_REGISTRY_ABSOLUTE,
Name,
&QueryTable[2],
NULL,
NULL);
if (!NT_SUCCESS(Status))
{
break;
}
RtlStringCchPrintfW(Name, ARRAYSIZE(Name),
L"%s\\%lu\\DiskController",
ROOT_NAME, AdapterCount);
Status = RtlQueryRegistryValues(RTL_REGISTRY_ABSOLUTE,
Name,
&QueryTable[2],
NULL,
NULL);
if (NT_SUCCESS(Status))
{
while (1)
{
RtlStringCchPrintfW(Name, ARRAYSIZE(Name),
L"%s\\%lu\\DiskController\\0",
ROOT_NAME, AdapterCount);
Status = RtlQueryRegistryValues(RTL_REGISTRY_ABSOLUTE,
Name,
&QueryTable[2],
NULL,
NULL);
if (!NT_SUCCESS(Status))
{
RtlFreeHeap(ProcessHeap, 0, Int13Drives);
return;
}
RtlStringCchPrintfW(Name, ARRAYSIZE(Name),
L"%s\\%lu\\DiskController\\0\\DiskPeripheral",
ROOT_NAME, AdapterCount);
Status = RtlQueryRegistryValues(RTL_REGISTRY_ABSOLUTE,
Name,
&QueryTable[2],
NULL,
NULL);
if (NT_SUCCESS(Status))
{
QueryTable[0].Name = L"Identifier";
QueryTable[0].QueryRoutine = DiskIdentifierQueryRoutine;
QueryTable[1].Name = L"Configuration Data";
QueryTable[1].QueryRoutine = DiskConfigurationDataQueryRoutine;
DiskCount = 0;
while (1)
{
BiosDiskEntry = (BIOSDISKENTRY*)RtlAllocateHeap(ProcessHeap, HEAP_ZERO_MEMORY, sizeof(BIOSDISKENTRY));
if (BiosDiskEntry == NULL)
{
break;
}
RtlStringCchPrintfW(Name, ARRAYSIZE(Name),
L"%s\\%lu\\DiskController\\0\\DiskPeripheral\\%lu",
ROOT_NAME, AdapterCount, DiskCount);
Status = RtlQueryRegistryValues(RTL_REGISTRY_ABSOLUTE,
Name,
QueryTable,
(PVOID)BiosDiskEntry,
NULL);
if (!NT_SUCCESS(Status))
{
RtlFreeHeap(ProcessHeap, 0, BiosDiskEntry);
break;
}
BiosDiskEntry->DiskNumber = DiskCount;
BiosDiskEntry->Recognized = FALSE;
if (DiskCount < Int13Drives[0].NumberDrives)
{
BiosDiskEntry->Int13DiskData = Int13Drives[DiskCount];
}
else
{
DPRINT1("Didn't find int13 drive datas for disk %u\n", DiskCount);
}
InsertTailList(&PartList->BiosDiskListHead, &BiosDiskEntry->ListEntry);
DPRINT("DiskNumber: %lu\n", BiosDiskEntry->DiskNumber);
DPRINT("Signature: %08lx\n", BiosDiskEntry->Signature);
DPRINT("Checksum: %08lx\n", BiosDiskEntry->Checksum);
DPRINT("BytesPerSector: %lu\n", BiosDiskEntry->DiskGeometry.BytesPerSector);
DPRINT("NumberOfCylinders: %lu\n", BiosDiskEntry->DiskGeometry.NumberOfCylinders);
DPRINT("NumberOfHeads: %lu\n", BiosDiskEntry->DiskGeometry.NumberOfHeads);
DPRINT("DriveSelect: %02x\n", BiosDiskEntry->Int13DiskData.DriveSelect);
DPRINT("MaxCylinders: %lu\n", BiosDiskEntry->Int13DiskData.MaxCylinders);
DPRINT("SectorsPerTrack: %d\n", BiosDiskEntry->Int13DiskData.SectorsPerTrack);
DPRINT("MaxHeads: %d\n", BiosDiskEntry->Int13DiskData.MaxHeads);
DPRINT("NumberDrives: %d\n", BiosDiskEntry->Int13DiskData.NumberDrives);
DiskCount++;
}
}
RtlFreeHeap(ProcessHeap, 0, Int13Drives);
return;
}
}
AdapterCount++;
}
RtlFreeHeap(ProcessHeap, 0, Int13Drives);
}
static
VOID
AddPartitionToDisk(
IN ULONG DiskNumber,
IN PDISKENTRY DiskEntry,
IN ULONG PartitionIndex,
IN BOOLEAN LogicalPartition)
{
PPARTITION_INFORMATION PartitionInfo;
PPARTENTRY PartEntry;
PartitionInfo = &DiskEntry->LayoutBuffer->PartitionEntry[PartitionIndex];
if (PartitionInfo->PartitionType == PARTITION_ENTRY_UNUSED ||
((LogicalPartition != FALSE) && IsContainerPartition(PartitionInfo->PartitionType)))
{
return;
}
PartEntry = RtlAllocateHeap(ProcessHeap,
HEAP_ZERO_MEMORY,
sizeof(PARTENTRY));
if (PartEntry == NULL)
return;
PartEntry->DiskEntry = DiskEntry;
PartEntry->StartSector.QuadPart = (ULONGLONG)PartitionInfo->StartingOffset.QuadPart / DiskEntry->BytesPerSector;
PartEntry->SectorCount.QuadPart = (ULONGLONG)PartitionInfo->PartitionLength.QuadPart / DiskEntry->BytesPerSector;
PartEntry->BootIndicator = PartitionInfo->BootIndicator;
PartEntry->PartitionType = PartitionInfo->PartitionType;
PartEntry->HiddenSectors = PartitionInfo->HiddenSectors;
PartEntry->LogicalPartition = LogicalPartition;
PartEntry->IsPartitioned = TRUE;
PartEntry->PartitionNumber = PartitionInfo->PartitionNumber;
PartEntry->PartitionIndex = PartitionIndex;
if (IsContainerPartition(PartEntry->PartitionType))
{
PartEntry->FormatState = Unformatted;
PartEntry->FileSystem = NULL;
if (LogicalPartition == FALSE && DiskEntry->ExtendedPartition == NULL)
DiskEntry->ExtendedPartition = PartEntry;
}
else if (IsRecognizedPartition(PartEntry->PartitionType))
{
PartEntry->FileSystem = GetFileSystem(PartEntry);
if (PartEntry->FileSystem)
PartEntry->FormatState = Preformatted;
else
PartEntry->FormatState = Unformatted;
// PartEntry->FormatState = UnknownFormat;
}
else
{
/* Unknown partition, hence unknown partition format (may or may not be actually formatted) */
PartEntry->FormatState = UnknownFormat;
}
if (LogicalPartition)
InsertTailList(&DiskEntry->LogicalPartListHead,
&PartEntry->ListEntry);
else
InsertTailList(&DiskEntry->PrimaryPartListHead,
&PartEntry->ListEntry);
}
static
VOID
ScanForUnpartitionedDiskSpace(
IN PDISKENTRY DiskEntry)
{
ULONGLONG LastStartSector;
ULONGLONG LastSectorCount;
ULONGLONG LastUnusedSectorCount;
PPARTENTRY PartEntry;
PPARTENTRY NewPartEntry;
PLIST_ENTRY Entry;
DPRINT("ScanForUnpartitionedDiskSpace()\n");
if (IsListEmpty(&DiskEntry->PrimaryPartListHead))
{
DPRINT1("No primary partition!\n");
/* Create a partition entry that represents the empty disk */
NewPartEntry = RtlAllocateHeap(ProcessHeap,
HEAP_ZERO_MEMORY,
sizeof(PARTENTRY));
if (NewPartEntry == NULL)
return;
NewPartEntry->DiskEntry = DiskEntry;
NewPartEntry->IsPartitioned = FALSE;
NewPartEntry->StartSector.QuadPart = (ULONGLONG)DiskEntry->SectorAlignment;
NewPartEntry->SectorCount.QuadPart = AlignDown(DiskEntry->SectorCount.QuadPart, DiskEntry->SectorAlignment) -
NewPartEntry->StartSector.QuadPart;
DPRINT1("First Sector: %I64u\n", NewPartEntry->StartSector.QuadPart);
DPRINT1("Last Sector: %I64u\n", NewPartEntry->StartSector.QuadPart + NewPartEntry->SectorCount.QuadPart - 1);
DPRINT1("Total Sectors: %I64u\n", NewPartEntry->SectorCount.QuadPart);
NewPartEntry->FormatState = Unformatted;
NewPartEntry->FileSystem = NULL;
InsertTailList(&DiskEntry->PrimaryPartListHead,
&NewPartEntry->ListEntry);
return;
}
/* Start partition at head 1, cylinder 0 */
LastStartSector = DiskEntry->SectorAlignment;
LastSectorCount = 0ULL;
LastUnusedSectorCount = 0ULL;
Entry = DiskEntry->PrimaryPartListHead.Flink;
while (Entry != &DiskEntry->PrimaryPartListHead)
{
PartEntry = CONTAINING_RECORD(Entry, PARTENTRY, ListEntry);
if (PartEntry->PartitionType != PARTITION_ENTRY_UNUSED ||
PartEntry->SectorCount.QuadPart != 0ULL)
{
LastUnusedSectorCount =
PartEntry->StartSector.QuadPart - (LastStartSector + LastSectorCount);
if (PartEntry->StartSector.QuadPart > (LastStartSector + LastSectorCount) &&
LastUnusedSectorCount >= (ULONGLONG)DiskEntry->SectorAlignment)
{
DPRINT("Unpartitioned disk space %I64u sectors\n", LastUnusedSectorCount);
NewPartEntry = RtlAllocateHeap(ProcessHeap,
HEAP_ZERO_MEMORY,
sizeof(PARTENTRY));
if (NewPartEntry == NULL)
return;
NewPartEntry->DiskEntry = DiskEntry;
NewPartEntry->IsPartitioned = FALSE;
NewPartEntry->StartSector.QuadPart = LastStartSector + LastSectorCount;
NewPartEntry->SectorCount.QuadPart = AlignDown(NewPartEntry->StartSector.QuadPart + LastUnusedSectorCount, DiskEntry->SectorAlignment) -
NewPartEntry->StartSector.QuadPart;
DPRINT1("First Sector: %I64u\n", NewPartEntry->StartSector.QuadPart);
DPRINT1("Last Sector: %I64u\n", NewPartEntry->StartSector.QuadPart + NewPartEntry->SectorCount.QuadPart - 1);
DPRINT1("Total Sectors: %I64u\n", NewPartEntry->SectorCount.QuadPart);
NewPartEntry->FormatState = Unformatted;
NewPartEntry->FileSystem = NULL;
/* Insert the table into the list */
InsertTailList(&PartEntry->ListEntry,
&NewPartEntry->ListEntry);
}
LastStartSector = PartEntry->StartSector.QuadPart;
LastSectorCount = PartEntry->SectorCount.QuadPart;
}
Entry = Entry->Flink;
}
/* Check for trailing unpartitioned disk space */
if ((LastStartSector + LastSectorCount) < DiskEntry->SectorCount.QuadPart)
{
LastUnusedSectorCount = AlignDown(DiskEntry->SectorCount.QuadPart - (LastStartSector + LastSectorCount), DiskEntry->SectorAlignment);
if (LastUnusedSectorCount >= (ULONGLONG)DiskEntry->SectorAlignment)
{
DPRINT("Unpartitioned disk space: %I64u sectors\n", LastUnusedSectorCount);
NewPartEntry = RtlAllocateHeap(ProcessHeap,
HEAP_ZERO_MEMORY,
sizeof(PARTENTRY));
if (NewPartEntry == NULL)
return;
NewPartEntry->DiskEntry = DiskEntry;
NewPartEntry->IsPartitioned = FALSE;
NewPartEntry->StartSector.QuadPart = LastStartSector + LastSectorCount;
NewPartEntry->SectorCount.QuadPart = AlignDown(NewPartEntry->StartSector.QuadPart + LastUnusedSectorCount, DiskEntry->SectorAlignment) -
NewPartEntry->StartSector.QuadPart;
DPRINT("First Sector: %I64u\n", NewPartEntry->StartSector.QuadPart);
DPRINT("Last Sector: %I64u\n", NewPartEntry->StartSector.QuadPart + NewPartEntry->SectorCount.QuadPart - 1);
DPRINT("Total Sectors: %I64u\n", NewPartEntry->SectorCount.QuadPart);
NewPartEntry->FormatState = Unformatted;
NewPartEntry->FileSystem = NULL;
/* Append the table to the list */
InsertTailList(&DiskEntry->PrimaryPartListHead,
&NewPartEntry->ListEntry);
}
}
if (DiskEntry->ExtendedPartition != NULL)
{
if (IsListEmpty(&DiskEntry->LogicalPartListHead))
{
DPRINT1("No logical partition!\n");
/* Create a partition entry that represents the empty extended partition */
NewPartEntry = RtlAllocateHeap(ProcessHeap,
HEAP_ZERO_MEMORY,
sizeof(PARTENTRY));
if (NewPartEntry == NULL)
return;
NewPartEntry->DiskEntry = DiskEntry;
NewPartEntry->LogicalPartition = TRUE;
NewPartEntry->IsPartitioned = FALSE;
NewPartEntry->StartSector.QuadPart = DiskEntry->ExtendedPartition->StartSector.QuadPart + (ULONGLONG)DiskEntry->SectorAlignment;
NewPartEntry->SectorCount.QuadPart = DiskEntry->ExtendedPartition->SectorCount.QuadPart - (ULONGLONG)DiskEntry->SectorAlignment;
DPRINT1("First Sector: %I64u\n", NewPartEntry->StartSector.QuadPart);
DPRINT1("Last Sector: %I64u\n", NewPartEntry->StartSector.QuadPart + NewPartEntry->SectorCount.QuadPart - 1);
DPRINT1("Total Sectors: %I64u\n", NewPartEntry->SectorCount.QuadPart);
NewPartEntry->FormatState = Unformatted;
NewPartEntry->FileSystem = NULL;
InsertTailList(&DiskEntry->LogicalPartListHead,
&NewPartEntry->ListEntry);
return;
}
/* Start partition at head 1, cylinder 0 */
LastStartSector = DiskEntry->ExtendedPartition->StartSector.QuadPart + (ULONGLONG)DiskEntry->SectorAlignment;
LastSectorCount = 0ULL;
LastUnusedSectorCount = 0ULL;
Entry = DiskEntry->LogicalPartListHead.Flink;
while (Entry != &DiskEntry->LogicalPartListHead)
{
PartEntry = CONTAINING_RECORD(Entry, PARTENTRY, ListEntry);
if (PartEntry->PartitionType != PARTITION_ENTRY_UNUSED ||
PartEntry->SectorCount.QuadPart != 0ULL)
{
LastUnusedSectorCount =
PartEntry->StartSector.QuadPart - (ULONGLONG)DiskEntry->SectorAlignment - (LastStartSector + LastSectorCount);
if ((PartEntry->StartSector.QuadPart - (ULONGLONG)DiskEntry->SectorAlignment) > (LastStartSector + LastSectorCount) &&
LastUnusedSectorCount >= (ULONGLONG)DiskEntry->SectorAlignment)
{
DPRINT("Unpartitioned disk space %I64u sectors\n", LastUnusedSectorCount);
NewPartEntry = RtlAllocateHeap(ProcessHeap,
HEAP_ZERO_MEMORY,
sizeof(PARTENTRY));
if (NewPartEntry == NULL)
return;
NewPartEntry->DiskEntry = DiskEntry;
NewPartEntry->LogicalPartition = TRUE;
NewPartEntry->IsPartitioned = FALSE;
NewPartEntry->StartSector.QuadPart = LastStartSector + LastSectorCount;
NewPartEntry->SectorCount.QuadPart = AlignDown(NewPartEntry->StartSector.QuadPart + LastUnusedSectorCount, DiskEntry->SectorAlignment) -
NewPartEntry->StartSector.QuadPart;
DPRINT("First Sector: %I64u\n", NewPartEntry->StartSector.QuadPart);
DPRINT("Last Sector: %I64u\n", NewPartEntry->StartSector.QuadPart + NewPartEntry->SectorCount.QuadPart - 1);
DPRINT("Total Sectors: %I64u\n", NewPartEntry->SectorCount.QuadPart);
NewPartEntry->FormatState = Unformatted;
NewPartEntry->FileSystem = NULL;
/* Insert the table into the list */
InsertTailList(&PartEntry->ListEntry,
&NewPartEntry->ListEntry);
}
LastStartSector = PartEntry->StartSector.QuadPart;
LastSectorCount = PartEntry->SectorCount.QuadPart;
}
Entry = Entry->Flink;
}
/* Check for trailing unpartitioned disk space */
if ((LastStartSector + LastSectorCount) < DiskEntry->ExtendedPartition->StartSector.QuadPart + DiskEntry->ExtendedPartition->SectorCount.QuadPart)
{
LastUnusedSectorCount = AlignDown(DiskEntry->ExtendedPartition->StartSector.QuadPart + DiskEntry->ExtendedPartition->SectorCount.QuadPart - (LastStartSector + LastSectorCount), DiskEntry->SectorAlignment);
if (LastUnusedSectorCount >= (ULONGLONG)DiskEntry->SectorAlignment)
{
DPRINT("Unpartitioned disk space: %I64u sectors\n", LastUnusedSectorCount);
NewPartEntry = RtlAllocateHeap(ProcessHeap,
HEAP_ZERO_MEMORY,
sizeof(PARTENTRY));
if (NewPartEntry == NULL)
return;
NewPartEntry->DiskEntry = DiskEntry;
NewPartEntry->LogicalPartition = TRUE;
NewPartEntry->IsPartitioned = FALSE;
NewPartEntry->StartSector.QuadPart = LastStartSector + LastSectorCount;
NewPartEntry->SectorCount.QuadPart = AlignDown(NewPartEntry->StartSector.QuadPart + LastUnusedSectorCount, DiskEntry->SectorAlignment) -
NewPartEntry->StartSector.QuadPart;
DPRINT("First Sector: %I64u\n", NewPartEntry->StartSector.QuadPart);
DPRINT("Last Sector: %I64u\n", NewPartEntry->StartSector.QuadPart + NewPartEntry->SectorCount.QuadPart - 1);
DPRINT("Total Sectors: %I64u\n", NewPartEntry->SectorCount.QuadPart);
NewPartEntry->FormatState = Unformatted;
NewPartEntry->FileSystem = NULL;
/* Append the table to the list */
InsertTailList(&DiskEntry->LogicalPartListHead,
&NewPartEntry->ListEntry);
}
}
}
DPRINT("ScanForUnpartitionedDiskSpace() done\n");
}
static
VOID
SetDiskSignature(
IN PPARTLIST List,
IN PDISKENTRY DiskEntry)
{
LARGE_INTEGER SystemTime;
TIME_FIELDS TimeFields;
PLIST_ENTRY Entry2;
PDISKENTRY DiskEntry2;
PUCHAR Buffer;
Buffer = (PUCHAR)&DiskEntry->LayoutBuffer->Signature;
while (1)
{
NtQuerySystemTime(&SystemTime);
RtlTimeToTimeFields(&SystemTime, &TimeFields);
Buffer[0] = (UCHAR)(TimeFields.Year & 0xFF) + (UCHAR)(TimeFields.Hour & 0xFF);
Buffer[1] = (UCHAR)(TimeFields.Year >> 8) + (UCHAR)(TimeFields.Minute & 0xFF);
Buffer[2] = (UCHAR)(TimeFields.Month & 0xFF) + (UCHAR)(TimeFields.Second & 0xFF);
Buffer[3] = (UCHAR)(TimeFields.Day & 0xFF) + (UCHAR)(TimeFields.Milliseconds & 0xFF);
if (DiskEntry->LayoutBuffer->Signature == 0)
{
continue;
}
/* check if the signature already exist */
/* FIXME:
* Check also signatures from disks, which are
* not visible (bootable) by the bios.
*/
Entry2 = List->DiskListHead.Flink;
while (Entry2 != &List->DiskListHead)
{
DiskEntry2 = CONTAINING_RECORD(Entry2, DISKENTRY, ListEntry);
if (DiskEntry != DiskEntry2 &&
DiskEntry->LayoutBuffer->Signature == DiskEntry2->LayoutBuffer->Signature)
break;
Entry2 = Entry2->Flink;
}
if (Entry2 == &List->DiskListHead)
break;
}
}
static
VOID
UpdateDiskSignatures(
IN PPARTLIST List)
{
PLIST_ENTRY Entry;
PDISKENTRY DiskEntry;
/* Print partition lines */
Entry = List->DiskListHead.Flink;
while (Entry != &List->DiskListHead)
{
DiskEntry = CONTAINING_RECORD(Entry, DISKENTRY, ListEntry);
if (DiskEntry->LayoutBuffer &&
DiskEntry->LayoutBuffer->Signature == 0)
{
SetDiskSignature(List, DiskEntry);
DiskEntry->LayoutBuffer->PartitionEntry[0].RewritePartition = TRUE;
}
Entry = Entry->Flink;
}
}
static
VOID
AddDiskToList(
IN HANDLE FileHandle,
IN ULONG DiskNumber,
IN PPARTLIST List)
{
DISK_GEOMETRY DiskGeometry;
SCSI_ADDRESS ScsiAddress;
PDISKENTRY DiskEntry;
IO_STATUS_BLOCK Iosb;
NTSTATUS Status;
PPARTITION_SECTOR Mbr;
PULONG Buffer;
LARGE_INTEGER FileOffset;
WCHAR Identifier[20];
ULONG Checksum;
ULONG Signature;
ULONG i;
PLIST_ENTRY ListEntry;
PBIOSDISKENTRY BiosDiskEntry;
ULONG LayoutBufferSize;
PDRIVE_LAYOUT_INFORMATION NewLayoutBuffer;
Status = NtDeviceIoControlFile(FileHandle,
NULL,
NULL,
NULL,
&Iosb,
IOCTL_DISK_GET_DRIVE_GEOMETRY,
NULL,
0,
&DiskGeometry,
sizeof(DISK_GEOMETRY));
if (!NT_SUCCESS(Status))
return;
if (DiskGeometry.MediaType != FixedMedia &&
DiskGeometry.MediaType != RemovableMedia)
{
return;
}
Status = NtDeviceIoControlFile(FileHandle,
NULL,
NULL,
NULL,
&Iosb,
IOCTL_SCSI_GET_ADDRESS,
NULL,
0,
&ScsiAddress,
sizeof(SCSI_ADDRESS));
if (!NT_SUCCESS(Status))
return;
/*
* Check whether the disk is initialized, by looking at its MBR.
* NOTE that this must be generalized to GPT disks as well!
*/
Mbr = (PARTITION_SECTOR*)RtlAllocateHeap(ProcessHeap,
0,
DiskGeometry.BytesPerSector);
if (Mbr == NULL)
return;
FileOffset.QuadPart = 0;
Status = NtReadFile(FileHandle,
NULL,
NULL,
NULL,
&Iosb,
(PVOID)Mbr,
DiskGeometry.BytesPerSector,
&FileOffset,
NULL);
if (!NT_SUCCESS(Status))
{
RtlFreeHeap(ProcessHeap, 0, Mbr);
DPRINT1("NtReadFile failed, status=%x\n", Status);
return;
}
Signature = Mbr->Signature;
/* Calculate the MBR checksum */
Checksum = 0;
Buffer = (PULONG)Mbr;
for (i = 0; i < 128; i++)
{
Checksum += Buffer[i];
}
Checksum = ~Checksum + 1;
RtlStringCchPrintfW(Identifier, ARRAYSIZE(Identifier),
L"%08x-%08x-A", Checksum, Signature);
DPRINT("Identifier: %S\n", Identifier);
DiskEntry = RtlAllocateHeap(ProcessHeap,
HEAP_ZERO_MEMORY,
sizeof(DISKENTRY));
if (DiskEntry == NULL)
{
return;
}
// DiskEntry->Checksum = Checksum;
// DiskEntry->Signature = Signature;
DiskEntry->BiosFound = FALSE;
/*
* Check if this disk has a valid MBR: verify its signature,
* and whether its two first bytes are a valid instruction
* (related to this, see IsThereAValidBootSector() in partlist.c).
*/
if (Mbr->Magic != 0xaa55 || (*(PUSHORT)Mbr->BootCode) == 0x0000)
DiskEntry->NoMbr = TRUE;
else
DiskEntry->NoMbr = FALSE;
/* Free the MBR sector buffer */
RtlFreeHeap(ProcessHeap, 0, Mbr);
ListEntry = List->BiosDiskListHead.Flink;
while (ListEntry != &List->BiosDiskListHead)
{
BiosDiskEntry = CONTAINING_RECORD(ListEntry, BIOSDISKENTRY, ListEntry);
/* FIXME:
* Compare the size from bios and the reported size from driver.
* If we have more than one disk with a zero or with the same signature
* we must create new signatures and reboot. After the reboot,
* it is possible to identify the disks.
*/
if (BiosDiskEntry->Signature == Signature &&
BiosDiskEntry->Checksum == Checksum &&
!BiosDiskEntry->Recognized)
{
if (!DiskEntry->BiosFound)
{
DiskEntry->BiosDiskNumber = BiosDiskEntry->DiskNumber;
DiskEntry->BiosFound = TRUE;
BiosDiskEntry->Recognized = TRUE;
}
else
{
}
}
ListEntry = ListEntry->Flink;
}
if (!DiskEntry->BiosFound)
{
#if 0
RtlFreeHeap(ProcessHeap, 0, DiskEntry);
return;
#else
DPRINT1("WARNING: Setup could not find a matching BIOS disk entry. Disk %d is not be bootable by the BIOS!\n", DiskNumber);
#endif
}
InitializeListHead(&DiskEntry->PrimaryPartListHead);
InitializeListHead(&DiskEntry->LogicalPartListHead);
DiskEntry->Cylinders = DiskGeometry.Cylinders.QuadPart;
DiskEntry->TracksPerCylinder = DiskGeometry.TracksPerCylinder;
DiskEntry->SectorsPerTrack = DiskGeometry.SectorsPerTrack;
DiskEntry->BytesPerSector = DiskGeometry.BytesPerSector;
DPRINT("Cylinders %I64u\n", DiskEntry->Cylinders);
DPRINT("TracksPerCylinder %lu\n", DiskEntry->TracksPerCylinder);
DPRINT("SectorsPerTrack %lu\n", DiskEntry->SectorsPerTrack);
DPRINT("BytesPerSector %lu\n", DiskEntry->BytesPerSector);
DiskEntry->SectorCount.QuadPart = DiskGeometry.Cylinders.QuadPart *
(ULONGLONG)DiskGeometry.TracksPerCylinder *
(ULONGLONG)DiskGeometry.SectorsPerTrack;
DiskEntry->SectorAlignment = DiskGeometry.SectorsPerTrack;
DiskEntry->CylinderAlignment = DiskGeometry.TracksPerCylinder *
DiskGeometry.SectorsPerTrack;
DPRINT("SectorCount %I64u\n", DiskEntry->SectorCount.QuadPart);
DPRINT("SectorAlignment %lu\n", DiskEntry->SectorAlignment);
DiskEntry->DiskNumber = DiskNumber;
DiskEntry->Port = ScsiAddress.PortNumber;
DiskEntry->Bus = ScsiAddress.PathId;
DiskEntry->Id = ScsiAddress.TargetId;
GetDriverName(DiskEntry);
/*
* Actually it would be more correct somehow to use:
*
* OBJECT_NAME_INFORMATION NameInfo; // ObjectNameInfo;
* ULONG ReturnedLength;
*
* Status = NtQueryObject(SomeHandleToTheDisk,
* ObjectNameInformation,
* &NameInfo,
* sizeof(NameInfo),
* &ReturnedLength);
* etc...
*
* See examples in https://git.reactos.org/?p=reactos.git;a=blob;f=reactos/ntoskrnl/io/iomgr/error.c;hb=2f3a93ee9cec8322a86bf74b356f1ad83fc912dc#l267
*/
InsertAscendingList(&List->DiskListHead, DiskEntry, DISKENTRY, ListEntry, DiskNumber);
/* Allocate a layout buffer with 4 partition entries first */
LayoutBufferSize = sizeof(DRIVE_LAYOUT_INFORMATION) +
((4 - ANYSIZE_ARRAY) * sizeof(PARTITION_INFORMATION));
DiskEntry->LayoutBuffer = RtlAllocateHeap(ProcessHeap,
HEAP_ZERO_MEMORY,
LayoutBufferSize);
if (DiskEntry->LayoutBuffer == NULL)
{
DPRINT1("Failed to allocate the disk layout buffer!\n");
return;
}
for (;;)
{
DPRINT1("Buffer size: %lu\n", LayoutBufferSize);
Status = NtDeviceIoControlFile(FileHandle,
NULL,
NULL,
NULL,
&Iosb,
IOCTL_DISK_GET_DRIVE_LAYOUT,
NULL,
0,
DiskEntry->LayoutBuffer,
LayoutBufferSize);
if (NT_SUCCESS(Status))
break;
if (Status != STATUS_BUFFER_TOO_SMALL)
{
DPRINT1("NtDeviceIoControlFile() failed (Status: 0x%08lx)\n", Status);
return;
}
LayoutBufferSize += 4 * sizeof(PARTITION_INFORMATION);
NewLayoutBuffer = RtlReAllocateHeap(ProcessHeap,
HEAP_ZERO_MEMORY,
DiskEntry->LayoutBuffer,
LayoutBufferSize);
if (NewLayoutBuffer == NULL)
{
DPRINT1("Failed to reallocate the disk layout buffer!\n");
return;
}
DiskEntry->LayoutBuffer = NewLayoutBuffer;
}
DPRINT1("PartitionCount: %lu\n", DiskEntry->LayoutBuffer->PartitionCount);
#ifdef DUMP_PARTITION_TABLE
DumpPartitionTable(DiskEntry);
#endif
if (DiskEntry->LayoutBuffer->PartitionEntry[0].StartingOffset.QuadPart != 0 &&
DiskEntry->LayoutBuffer->PartitionEntry[0].PartitionLength.QuadPart != 0 &&
DiskEntry->LayoutBuffer->PartitionEntry[0].PartitionType != PARTITION_ENTRY_UNUSED)
{
if ((DiskEntry->LayoutBuffer->PartitionEntry[0].StartingOffset.QuadPart / DiskEntry->BytesPerSector) % DiskEntry->SectorsPerTrack == 0)
{
DPRINT("Use %lu Sector alignment!\n", DiskEntry->SectorsPerTrack);
}
else if (DiskEntry->LayoutBuffer->PartitionEntry[0].StartingOffset.QuadPart % (1024 * 1024) == 0)
{
DPRINT1("Use megabyte (%lu Sectors) alignment!\n", (1024 * 1024) / DiskEntry->BytesPerSector);
}
else
{
DPRINT1("No matching alignment found! Partition 1 starts at %I64u\n", DiskEntry->LayoutBuffer->PartitionEntry[0].StartingOffset.QuadPart);
}
}
else
{
DPRINT1("No valid partition table found! Use megabyte (%lu Sectors) alignment!\n", (1024 * 1024) / DiskEntry->BytesPerSector);
}
if (DiskEntry->LayoutBuffer->PartitionCount == 0)
{
DiskEntry->NewDisk = TRUE;
DiskEntry->LayoutBuffer->PartitionCount = 4;
for (i = 0; i < 4; i++)
DiskEntry->LayoutBuffer->PartitionEntry[i].RewritePartition = TRUE;
}
else
{
for (i = 0; i < 4; i++)
{
AddPartitionToDisk(DiskNumber, DiskEntry, i, FALSE);
}
for (i = 4; i < DiskEntry->LayoutBuffer->PartitionCount; i += 4)
{
AddPartitionToDisk(DiskNumber, DiskEntry, i, TRUE);
}
}
ScanForUnpartitionedDiskSpace(DiskEntry);
}
PPARTLIST
CreatePartitionList(VOID)
{
PPARTLIST List;
OBJECT_ATTRIBUTES ObjectAttributes;
SYSTEM_DEVICE_INFORMATION Sdi;
IO_STATUS_BLOCK Iosb;
ULONG ReturnSize;
NTSTATUS Status;
ULONG DiskNumber;
WCHAR Buffer[MAX_PATH];
UNICODE_STRING Name;
HANDLE FileHandle;
List = (PPARTLIST)RtlAllocateHeap(ProcessHeap,
0,
sizeof(PARTLIST));
if (List == NULL)
return NULL;
List->CurrentDisk = NULL;
List->CurrentPartition = NULL;
List->SystemPartition = NULL;
List->OriginalSystemPartition = NULL;
InitializeListHead(&List->DiskListHead);
InitializeListHead(&List->BiosDiskListHead);
EnumerateBiosDiskEntries(List);
Status = NtQuerySystemInformation(SystemDeviceInformation,
&Sdi,
sizeof(Sdi),
&ReturnSize);
if (!NT_SUCCESS(Status))
{
DPRINT1("NtQuerySystemInformation() failed, Status 0x%08lx", Status);
RtlFreeHeap(ProcessHeap, 0, List);
return NULL;
}
for (DiskNumber = 0; DiskNumber < Sdi.NumberOfDisks; DiskNumber++)
{
RtlStringCchPrintfW(Buffer, ARRAYSIZE(Buffer),
L"\\Device\\Harddisk%lu\\Partition0",
DiskNumber);
RtlInitUnicodeString(&Name, Buffer);
InitializeObjectAttributes(&ObjectAttributes,
&Name,
0,
NULL,
NULL);
Status = NtOpenFile(&FileHandle,
FILE_READ_DATA | FILE_READ_ATTRIBUTES | SYNCHRONIZE,
&ObjectAttributes,
&Iosb,
FILE_SHARE_READ,
FILE_SYNCHRONOUS_IO_NONALERT);
if (NT_SUCCESS(Status))
{
AddDiskToList(FileHandle, DiskNumber, List);
NtClose(FileHandle);
}
}
UpdateDiskSignatures(List);
AssignDriveLetters(List);
/* Search for first usable disk and partition */
if (IsListEmpty(&List->DiskListHead))
{
List->CurrentDisk = NULL;
List->CurrentPartition = NULL;
}
else
{
List->CurrentDisk = CONTAINING_RECORD(List->DiskListHead.Flink,
DISKENTRY,
ListEntry);
if (IsListEmpty(&List->CurrentDisk->PrimaryPartListHead))
{
List->CurrentPartition = NULL;
}
else
{
List->CurrentPartition = CONTAINING_RECORD(List->CurrentDisk->PrimaryPartListHead.Flink,
PARTENTRY,
ListEntry);
}
}
return List;
}
VOID
DestroyPartitionList(
IN PPARTLIST List)
{
PDISKENTRY DiskEntry;
PBIOSDISKENTRY BiosDiskEntry;
PPARTENTRY PartEntry;
PLIST_ENTRY Entry;
/* Release disk and partition info */
while (!IsListEmpty(&List->DiskListHead))
{
Entry = RemoveHeadList(&List->DiskListHead);
DiskEntry = CONTAINING_RECORD(Entry, DISKENTRY, ListEntry);
/* Release driver name */
RtlFreeUnicodeString(&DiskEntry->DriverName);
/* Release primary partition list */
while (!IsListEmpty(&DiskEntry->PrimaryPartListHead))
{
Entry = RemoveHeadList(&DiskEntry->PrimaryPartListHead);
PartEntry = CONTAINING_RECORD(Entry, PARTENTRY, ListEntry);
RtlFreeHeap(ProcessHeap, 0, PartEntry);
}
/* Release logical partition list */
while (!IsListEmpty(&DiskEntry->LogicalPartListHead))
{
Entry = RemoveHeadList(&DiskEntry->LogicalPartListHead);
PartEntry = CONTAINING_RECORD(Entry, PARTENTRY, ListEntry);
RtlFreeHeap(ProcessHeap, 0, PartEntry);
}
/* Release layout buffer */
if (DiskEntry->LayoutBuffer != NULL)
RtlFreeHeap(ProcessHeap, 0, DiskEntry->LayoutBuffer);
/* Release disk entry */
RtlFreeHeap(ProcessHeap, 0, DiskEntry);
}
/* Release the bios disk info */
while (!IsListEmpty(&List->BiosDiskListHead))
{
Entry = RemoveHeadList(&List->BiosDiskListHead);
BiosDiskEntry = CONTAINING_RECORD(Entry, BIOSDISKENTRY, ListEntry);
RtlFreeHeap(ProcessHeap, 0, BiosDiskEntry);
}
/* Release list head */
RtlFreeHeap(ProcessHeap, 0, List);
}
PDISKENTRY
GetDiskByBiosNumber(
IN PPARTLIST List,
IN ULONG BiosDiskNumber)
{
PDISKENTRY DiskEntry;
PLIST_ENTRY Entry;
/* Loop over the disks and find the correct one */
Entry = List->DiskListHead.Flink;
while (Entry != &List->DiskListHead)
{
DiskEntry = CONTAINING_RECORD(Entry, DISKENTRY, ListEntry);
Entry = Entry->Flink;
if (DiskEntry->BiosDiskNumber == BiosDiskNumber)
{
/* Disk found */
return DiskEntry;
}
}
/* Disk not found, stop there */
return NULL;
}
PDISKENTRY
GetDiskByNumber(
IN PPARTLIST List,
IN ULONG DiskNumber)
{
PDISKENTRY DiskEntry;
PLIST_ENTRY Entry;
/* Loop over the disks and find the correct one */
Entry = List->DiskListHead.Flink;
while (Entry != &List->DiskListHead)
{
DiskEntry = CONTAINING_RECORD(Entry, DISKENTRY, ListEntry);
Entry = Entry->Flink;
if (DiskEntry->DiskNumber == DiskNumber)
{
/* Disk found */
return DiskEntry;
}
}
/* Disk not found, stop there */
return NULL;
}
PDISKENTRY
GetDiskBySCSI(
IN PPARTLIST List,
IN USHORT Port,
IN USHORT Bus,
IN USHORT Id)
{
PDISKENTRY DiskEntry;
PLIST_ENTRY Entry;
/* Loop over the disks and find the correct one */
Entry = List->DiskListHead.Flink;
while (Entry != &List->DiskListHead)
{
DiskEntry = CONTAINING_RECORD(Entry, DISKENTRY, ListEntry);
Entry = Entry->Flink;
if (DiskEntry->Port == Port &&
DiskEntry->Bus == Bus &&
DiskEntry->Id == Id)
{
/* Disk found */
return DiskEntry;
}
}
/* Disk not found, stop there */
return NULL;
}
PDISKENTRY
GetDiskBySignature(
IN PPARTLIST List,
IN ULONG Signature)
{
PDISKENTRY DiskEntry;
PLIST_ENTRY Entry;
/* Loop over the disks and find the correct one */
Entry = List->DiskListHead.Flink;
while (Entry != &List->DiskListHead)
{
DiskEntry = CONTAINING_RECORD(Entry, DISKENTRY, ListEntry);
Entry = Entry->Flink;
if (DiskEntry->LayoutBuffer->Signature == Signature)
{
/* Disk found */
return DiskEntry;
}
}
/* Disk not found, stop there */
return NULL;
}
PPARTENTRY
GetPartition(
// IN PPARTLIST List,
IN PDISKENTRY DiskEntry,
IN ULONG PartitionNumber)
{
PPARTENTRY PartEntry;
PLIST_ENTRY Entry;
/* Disk found, loop over the primary partitions first... */
Entry = DiskEntry->PrimaryPartListHead.Flink;
while (Entry != &DiskEntry->PrimaryPartListHead)
{
PartEntry = CONTAINING_RECORD(Entry, PARTENTRY, ListEntry);
Entry = Entry->Flink;
if (PartEntry->PartitionNumber == PartitionNumber)
{
/* Partition found */
return PartEntry;
}
}
/* ... then over the logical partitions if needed */
Entry = DiskEntry->LogicalPartListHead.Flink;
while (Entry != &DiskEntry->LogicalPartListHead)
{
PartEntry = CONTAINING_RECORD(Entry, PARTENTRY, ListEntry);
Entry = Entry->Flink;
if (PartEntry->PartitionNumber == PartitionNumber)
{
/* Partition found */
return PartEntry;
}
}
/* The partition was not found on the disk, stop there */
return NULL;
}
BOOLEAN
GetDiskOrPartition(
IN PPARTLIST List,
IN ULONG DiskNumber,
IN ULONG PartitionNumber OPTIONAL,
OUT PDISKENTRY* pDiskEntry,
OUT PPARTENTRY* pPartEntry OPTIONAL)
{
PDISKENTRY DiskEntry;
PPARTENTRY PartEntry = NULL;
/* Find the disk */
DiskEntry = GetDiskByNumber(List, DiskNumber);
if (!DiskEntry)
return FALSE;
/* If we have a partition (PartitionNumber != 0), find it */
if (PartitionNumber != 0)
{
PartEntry = GetPartition(/*List,*/ DiskEntry, PartitionNumber);
if (!PartEntry)
return FALSE;
ASSERT(PartEntry->DiskEntry == DiskEntry);
}
/* Return the disk (and optionally the partition) */
*pDiskEntry = DiskEntry;
if (pPartEntry) *pPartEntry = PartEntry;
return TRUE;
}
//
// NOTE: Was introduced broken in r6258 by Casper
//
BOOLEAN
SelectPartition(
IN PPARTLIST List,
IN ULONG DiskNumber,
IN ULONG PartitionNumber)
{
PDISKENTRY DiskEntry;
PPARTENTRY PartEntry;
DiskEntry = GetDiskByNumber(List, DiskNumber);
if (!DiskEntry)
return FALSE;
PartEntry = GetPartition(/*List,*/ DiskEntry, PartitionNumber);
if (!PartEntry)
return FALSE;
ASSERT(PartEntry->DiskEntry == DiskEntry);
ASSERT(DiskEntry->DiskNumber == DiskNumber);
ASSERT(PartEntry->PartitionNumber == PartitionNumber);
List->CurrentDisk = DiskEntry;
List->CurrentPartition = PartEntry;
return TRUE;
}
PPARTENTRY
GetNextPartition(
IN PPARTLIST List)
{
PLIST_ENTRY DiskListEntry;
PLIST_ENTRY PartListEntry;
PDISKENTRY DiskEntry;
PPARTENTRY PartEntry;
/* Fail if no disks are available */
if (IsListEmpty(&List->DiskListHead))
return NULL;
/* Check for next usable entry on current disk */
if (List->CurrentPartition != NULL)
{
if (List->CurrentPartition->LogicalPartition)
{
/* Logical partition */
PartListEntry = List->CurrentPartition->ListEntry.Flink;
if (PartListEntry != &List->CurrentDisk->LogicalPartListHead)
{
/* Next logical partition */
PartEntry = CONTAINING_RECORD(PartListEntry, PARTENTRY, ListEntry);
List->CurrentPartition = PartEntry;
return List->CurrentPartition;
}
else
{
PartListEntry = List->CurrentDisk->ExtendedPartition->ListEntry.Flink;
if (PartListEntry != &List->CurrentDisk->PrimaryPartListHead)
{
PartEntry = CONTAINING_RECORD(PartListEntry, PARTENTRY, ListEntry);
List->CurrentPartition = PartEntry;
return List->CurrentPartition;
}
}
}
else
{
/* Primary or extended partition */
if ((List->CurrentPartition->IsPartitioned != FALSE) &&
IsContainerPartition(List->CurrentPartition->PartitionType))
{
/* First logical partition */
PartListEntry = List->CurrentDisk->LogicalPartListHead.Flink;
if (PartListEntry != &List->CurrentDisk->LogicalPartListHead)
{
PartEntry = CONTAINING_RECORD(PartListEntry, PARTENTRY, ListEntry);
List->CurrentPartition = PartEntry;
return List->CurrentPartition;
}
}
else
{
/* Next primary partition */
PartListEntry = List->CurrentPartition->ListEntry.Flink;
if (PartListEntry != &List->CurrentDisk->PrimaryPartListHead)
{
PartEntry = CONTAINING_RECORD(PartListEntry, PARTENTRY, ListEntry);
List->CurrentPartition = PartEntry;
return List->CurrentPartition;
}
}
}
}
/* Search for the first partition entry on the next disk */
DiskListEntry = List->CurrentDisk->ListEntry.Flink;
while (DiskListEntry != &List->DiskListHead)
{
DiskEntry = CONTAINING_RECORD(DiskListEntry, DISKENTRY, ListEntry);
PartListEntry = DiskEntry->PrimaryPartListHead.Flink;
if (PartListEntry != &DiskEntry->PrimaryPartListHead)
{
PartEntry = CONTAINING_RECORD(PartListEntry, PARTENTRY, ListEntry);
List->CurrentDisk = DiskEntry;
List->CurrentPartition = PartEntry;
return List->CurrentPartition;
}
DiskListEntry = DiskListEntry->Flink;
}
return NULL;
}
PPARTENTRY
GetPrevPartition(
IN PPARTLIST List)
{
PLIST_ENTRY DiskListEntry;
PLIST_ENTRY PartListEntry;
PDISKENTRY DiskEntry;
PPARTENTRY PartEntry;
/* Fail if no disks are available */
if (IsListEmpty(&List->DiskListHead))
return NULL;
/* Check for previous usable entry on current disk */
if (List->CurrentPartition != NULL)
{
if (List->CurrentPartition->LogicalPartition)
{
/* Logical partition */
PartListEntry = List->CurrentPartition->ListEntry.Blink;
if (PartListEntry != &List->CurrentDisk->LogicalPartListHead)
{
/* Previous logical partition */
PartEntry = CONTAINING_RECORD(PartListEntry, PARTENTRY, ListEntry);
}
else
{
/* Extended partition */
PartEntry = List->CurrentDisk->ExtendedPartition;
}
List->CurrentPartition = PartEntry;
return List->CurrentPartition;
}
else
{
/* Primary or extended partition */
PartListEntry = List->CurrentPartition->ListEntry.Blink;
if (PartListEntry != &List->CurrentDisk->PrimaryPartListHead)
{
PartEntry = CONTAINING_RECORD(PartListEntry, PARTENTRY, ListEntry);
if ((PartEntry->IsPartitioned != FALSE) &&
IsContainerPartition(PartEntry->PartitionType))
{
PartListEntry = List->CurrentDisk->LogicalPartListHead.Blink;
PartEntry = CONTAINING_RECORD(PartListEntry, PARTENTRY, ListEntry);
}
List->CurrentPartition = PartEntry;
return List->CurrentPartition;
}
}
}
/* Search for the last partition entry on the previous disk */
DiskListEntry = List->CurrentDisk->ListEntry.Blink;
while (DiskListEntry != &List->DiskListHead)
{
DiskEntry = CONTAINING_RECORD(DiskListEntry, DISKENTRY, ListEntry);
PartListEntry = DiskEntry->PrimaryPartListHead.Blink;
if (PartListEntry != &DiskEntry->PrimaryPartListHead)
{
PartEntry = CONTAINING_RECORD(PartListEntry, PARTENTRY, ListEntry);
if ((PartEntry->IsPartitioned != FALSE) &&
IsContainerPartition(PartEntry->PartitionType))
{
PartListEntry = DiskEntry->LogicalPartListHead.Blink;
if (PartListEntry != &DiskEntry->LogicalPartListHead)
{
PartEntry = CONTAINING_RECORD(PartListEntry, PARTENTRY, ListEntry);
List->CurrentDisk = DiskEntry;
List->CurrentPartition = PartEntry;
return List->CurrentPartition;
}
}
else
{
List->CurrentDisk = DiskEntry;
List->CurrentPartition = PartEntry;
return List->CurrentPartition;
}
}
DiskListEntry = DiskListEntry->Blink;
}
return NULL;
}
static
BOOLEAN
IsEmptyLayoutEntry(
IN PPARTITION_INFORMATION PartitionInfo)
{
if (PartitionInfo->StartingOffset.QuadPart == 0 &&
PartitionInfo->PartitionLength.QuadPart == 0)
{
return TRUE;
}
return FALSE;
}
static
BOOLEAN
IsSamePrimaryLayoutEntry(
IN PPARTITION_INFORMATION PartitionInfo,
IN PDISKENTRY DiskEntry,
IN PPARTENTRY PartEntry)
{
if (PartitionInfo->StartingOffset.QuadPart == PartEntry->StartSector.QuadPart * DiskEntry->BytesPerSector &&
PartitionInfo->PartitionLength.QuadPart == PartEntry->SectorCount.QuadPart * DiskEntry->BytesPerSector)
// PartitionInfo->PartitionNumber = PartEntry->PartitionNumber &&
// PartitionInfo->PartitionType == PartEntry->PartitionType
{
return TRUE;
}
return FALSE;
}
static
ULONG
GetPrimaryPartitionCount(
IN PDISKENTRY DiskEntry)
{
PLIST_ENTRY Entry;
PPARTENTRY PartEntry;
ULONG Count = 0;
Entry = DiskEntry->PrimaryPartListHead.Flink;
while (Entry != &DiskEntry->PrimaryPartListHead)
{
PartEntry = CONTAINING_RECORD(Entry, PARTENTRY, ListEntry);
if (PartEntry->IsPartitioned)
Count++;
Entry = Entry->Flink;
}
return Count;
}
static
ULONG
GetLogicalPartitionCount(
IN PDISKENTRY DiskEntry)
{
PLIST_ENTRY ListEntry;
PPARTENTRY PartEntry;
ULONG Count = 0;
ListEntry = DiskEntry->LogicalPartListHead.Flink;
while (ListEntry != &DiskEntry->LogicalPartListHead)
{
PartEntry = CONTAINING_RECORD(ListEntry, PARTENTRY, ListEntry);
if (PartEntry->IsPartitioned)
Count++;
ListEntry = ListEntry->Flink;
}
return Count;
}
static
BOOLEAN
ReAllocateLayoutBuffer(
IN PDISKENTRY DiskEntry)
{
PDRIVE_LAYOUT_INFORMATION NewLayoutBuffer;
ULONG NewPartitionCount;
ULONG CurrentPartitionCount = 0;
ULONG LayoutBufferSize;
ULONG i;
DPRINT1("ReAllocateLayoutBuffer()\n");
NewPartitionCount = 4 + GetLogicalPartitionCount(DiskEntry) * 4;
if (DiskEntry->LayoutBuffer)
CurrentPartitionCount = DiskEntry->LayoutBuffer->PartitionCount;
DPRINT1("CurrentPartitionCount: %lu NewPartitionCount: %lu\n",
CurrentPartitionCount, NewPartitionCount);
if (CurrentPartitionCount == NewPartitionCount)
return TRUE;
LayoutBufferSize = sizeof(DRIVE_LAYOUT_INFORMATION) +
((NewPartitionCount - ANYSIZE_ARRAY) * sizeof(PARTITION_INFORMATION));
NewLayoutBuffer = RtlReAllocateHeap(ProcessHeap,
HEAP_ZERO_MEMORY,
DiskEntry->LayoutBuffer,
LayoutBufferSize);
if (NewLayoutBuffer == NULL)
{
DPRINT1("Failed to allocate the new layout buffer (size: %lu)\n", LayoutBufferSize);
return FALSE;
}
/* If the layout buffer grows, make sure the new (empty) entries are written to the disk */
if (NewPartitionCount > CurrentPartitionCount)
{
for (i = CurrentPartitionCount; i < NewPartitionCount; i++)
NewLayoutBuffer->PartitionEntry[i].RewritePartition = TRUE;
}
DiskEntry->LayoutBuffer = NewLayoutBuffer;
DiskEntry->LayoutBuffer->PartitionCount = NewPartitionCount;
return TRUE;
}
static
VOID
UpdateDiskLayout(
IN PDISKENTRY DiskEntry)
{
PPARTITION_INFORMATION PartitionInfo;
PPARTITION_INFORMATION LinkInfo = NULL;
PLIST_ENTRY ListEntry;
PPARTENTRY PartEntry;
LARGE_INTEGER HiddenSectors64;
ULONG Index;
ULONG PartitionNumber = 1;
DPRINT1("UpdateDiskLayout()\n");
/* Resize the layout buffer if necessary */
if (ReAllocateLayoutBuffer(DiskEntry) == FALSE)
{
DPRINT("ReAllocateLayoutBuffer() failed.\n");
return;
}
/* Update the primary partition table */
Index = 0;
ListEntry = DiskEntry->PrimaryPartListHead.Flink;
while (ListEntry != &DiskEntry->PrimaryPartListHead)
{
PartEntry = CONTAINING_RECORD(ListEntry, PARTENTRY, ListEntry);
if (PartEntry->IsPartitioned != FALSE)
{
PartitionInfo = &DiskEntry->LayoutBuffer->PartitionEntry[Index];
if (!IsSamePrimaryLayoutEntry(PartitionInfo, DiskEntry, PartEntry))
{
DPRINT1("Updating primary partition entry %lu\n", Index);
PartitionInfo->StartingOffset.QuadPart = PartEntry->StartSector.QuadPart * DiskEntry->BytesPerSector;
PartitionInfo->PartitionLength.QuadPart = PartEntry->SectorCount.QuadPart * DiskEntry->BytesPerSector;
PartitionInfo->HiddenSectors = PartEntry->StartSector.LowPart;
PartitionInfo->PartitionNumber = (!IsContainerPartition(PartEntry->PartitionType)) ? PartitionNumber : 0;
PartitionInfo->PartitionType = PartEntry->PartitionType;
PartitionInfo->BootIndicator = PartEntry->BootIndicator;
PartitionInfo->RecognizedPartition = FALSE;
PartitionInfo->RewritePartition = TRUE;
}
PartEntry->PartitionNumber = (!IsContainerPartition(PartEntry->PartitionType)) ? PartitionNumber : 0;
PartEntry->PartitionIndex = Index;
if (!IsContainerPartition(PartEntry->PartitionType))
PartitionNumber++;
Index++;
}
ListEntry = ListEntry->Flink;
}
/* Update the logical partition table */
Index = 4;
ListEntry = DiskEntry->LogicalPartListHead.Flink;
while (ListEntry != &DiskEntry->LogicalPartListHead)
{
PartEntry = CONTAINING_RECORD(ListEntry, PARTENTRY, ListEntry);
if (PartEntry->IsPartitioned)
{
PartitionInfo = &DiskEntry->LayoutBuffer->PartitionEntry[Index];
DPRINT1("Updating logical partition entry %lu\n", Index);
PartitionInfo->StartingOffset.QuadPart = PartEntry->StartSector.QuadPart * DiskEntry->BytesPerSector;
PartitionInfo->PartitionLength.QuadPart = PartEntry->SectorCount.QuadPart * DiskEntry->BytesPerSector;
PartitionInfo->HiddenSectors = DiskEntry->SectorAlignment;
PartitionInfo->PartitionNumber = PartitionNumber;
PartitionInfo->PartitionType = PartEntry->PartitionType;
PartitionInfo->BootIndicator = FALSE;
PartitionInfo->RecognizedPartition = FALSE;
PartitionInfo->RewritePartition = TRUE;
PartEntry->PartitionNumber = PartitionNumber;
PartEntry->PartitionIndex = Index;
/* Fill the link entry of the previous partition entry */
if (LinkInfo != NULL)
{
LinkInfo->StartingOffset.QuadPart = (PartEntry->StartSector.QuadPart - DiskEntry->SectorAlignment) * DiskEntry->BytesPerSector;
LinkInfo->PartitionLength.QuadPart = (PartEntry->StartSector.QuadPart + DiskEntry->SectorAlignment) * DiskEntry->BytesPerSector;
HiddenSectors64.QuadPart = PartEntry->StartSector.QuadPart - DiskEntry->SectorAlignment - DiskEntry->ExtendedPartition->StartSector.QuadPart;
LinkInfo->HiddenSectors = HiddenSectors64.LowPart;
LinkInfo->PartitionNumber = 0;
LinkInfo->PartitionType = PARTITION_EXTENDED;
LinkInfo->BootIndicator = FALSE;
LinkInfo->RecognizedPartition = FALSE;
LinkInfo->RewritePartition = TRUE;
}
/* Save a pointer to the link entry of the current partition entry */
LinkInfo = &DiskEntry->LayoutBuffer->PartitionEntry[Index + 1];
PartitionNumber++;
Index += 4;
}
ListEntry = ListEntry->Flink;
}
/* Wipe unused primary partition entries */
for (Index = GetPrimaryPartitionCount(DiskEntry); Index < 4; Index++)
{
DPRINT1("Primary partition entry %lu\n", Index);
PartitionInfo = &DiskEntry->LayoutBuffer->PartitionEntry[Index];
if (!IsEmptyLayoutEntry(PartitionInfo))
{
DPRINT1("Wiping primary partition entry %lu\n", Index);
PartitionInfo->StartingOffset.QuadPart = 0;
PartitionInfo->PartitionLength.QuadPart = 0;
PartitionInfo->HiddenSectors = 0;
PartitionInfo->PartitionNumber = 0;
PartitionInfo->PartitionType = PARTITION_ENTRY_UNUSED;
PartitionInfo->BootIndicator = FALSE;
PartitionInfo->RecognizedPartition = FALSE;
PartitionInfo->RewritePartition = TRUE;
}
}
/* Wipe unused logical partition entries */
for (Index = 4; Index < DiskEntry->LayoutBuffer->PartitionCount; Index++)
{
if (Index % 4 >= 2)
{
DPRINT1("Logical partition entry %lu\n", Index);
PartitionInfo = &DiskEntry->LayoutBuffer->PartitionEntry[Index];
if (!IsEmptyLayoutEntry(PartitionInfo))
{
DPRINT1("Wiping partition entry %lu\n", Index);
PartitionInfo->StartingOffset.QuadPart = 0;
PartitionInfo->PartitionLength.QuadPart = 0;
PartitionInfo->HiddenSectors = 0;
PartitionInfo->PartitionNumber = 0;
PartitionInfo->PartitionType = PARTITION_ENTRY_UNUSED;
PartitionInfo->BootIndicator = FALSE;
PartitionInfo->RecognizedPartition = FALSE;
PartitionInfo->RewritePartition = TRUE;
}
}
}
#ifdef DUMP_PARTITION_TABLE
DumpPartitionTable(DiskEntry);
#endif
}
static
PPARTENTRY
GetPrevUnpartitionedEntry(
IN PDISKENTRY DiskEntry,
IN PPARTENTRY PartEntry)
{
PPARTENTRY PrevPartEntry;
PLIST_ENTRY ListHead;
if (PartEntry->LogicalPartition)
ListHead = &DiskEntry->LogicalPartListHead;
else
ListHead = &DiskEntry->PrimaryPartListHead;
if (PartEntry->ListEntry.Blink != ListHead)
{
PrevPartEntry = CONTAINING_RECORD(PartEntry->ListEntry.Blink,
PARTENTRY,
ListEntry);
if (PrevPartEntry->IsPartitioned == FALSE)
return PrevPartEntry;
}
return NULL;
}
static
PPARTENTRY
GetNextUnpartitionedEntry(
IN PDISKENTRY DiskEntry,
IN PPARTENTRY PartEntry)
{
PPARTENTRY NextPartEntry;
PLIST_ENTRY ListHead;
if (PartEntry->LogicalPartition)
ListHead = &DiskEntry->LogicalPartListHead;
else
ListHead = &DiskEntry->PrimaryPartListHead;
if (PartEntry->ListEntry.Flink != ListHead)
{
NextPartEntry = CONTAINING_RECORD(PartEntry->ListEntry.Flink,
PARTENTRY,
ListEntry);
if (NextPartEntry->IsPartitioned == FALSE)
return NextPartEntry;
}
return NULL;
}
VOID
CreatePrimaryPartition(
IN PPARTLIST List,
IN ULONGLONG SectorCount,
IN BOOLEAN AutoCreate)
{
PDISKENTRY DiskEntry;
PPARTENTRY PartEntry;
PPARTENTRY NewPartEntry;
DPRINT1("CreatePrimaryPartition(%I64u)\n", SectorCount);
if (List == NULL ||
List->CurrentDisk == NULL ||
List->CurrentPartition == NULL ||
List->CurrentPartition->IsPartitioned != FALSE)
{
return;
}
DiskEntry = List->CurrentDisk;
PartEntry = List->CurrentPartition;
DPRINT1("Current partition sector count: %I64u\n", PartEntry->SectorCount.QuadPart);
if ((AutoCreate != FALSE) ||
(AlignDown(PartEntry->StartSector.QuadPart + SectorCount, DiskEntry->SectorAlignment) - PartEntry->StartSector.QuadPart == PartEntry->SectorCount.QuadPart))
{
DPRINT1("Convert existing partition entry\n");
/* Convert current entry to 'new (unformatted)' */
PartEntry->IsPartitioned = TRUE;
PartEntry->PartitionType = PARTITION_ENTRY_UNUSED;
PartEntry->FormatState = Unformatted;
PartEntry->FileSystem = NULL;
PartEntry->AutoCreate = AutoCreate;
PartEntry->New = TRUE;
PartEntry->BootIndicator = FALSE;
DPRINT1("First Sector: %I64u\n", PartEntry->StartSector.QuadPart);
DPRINT1("Last Sector: %I64u\n", PartEntry->StartSector.QuadPart + PartEntry->SectorCount.QuadPart - 1);
DPRINT1("Total Sectors: %I64u\n", PartEntry->SectorCount.QuadPart);
}
else
{
DPRINT1("Add new partition entry\n");
/* Insert and initialize a new partition entry */
NewPartEntry = RtlAllocateHeap(ProcessHeap,
HEAP_ZERO_MEMORY,
sizeof(PARTENTRY));
if (NewPartEntry == NULL)
return;
/* Insert the new entry into the list */
InsertTailList(&PartEntry->ListEntry,
&NewPartEntry->ListEntry);
NewPartEntry->DiskEntry = DiskEntry;
NewPartEntry->IsPartitioned = TRUE;
NewPartEntry->StartSector.QuadPart = PartEntry->StartSector.QuadPart;
NewPartEntry->SectorCount.QuadPart = AlignDown(NewPartEntry->StartSector.QuadPart + SectorCount, DiskEntry->SectorAlignment) -
NewPartEntry->StartSector.QuadPart;
NewPartEntry->PartitionType = PARTITION_ENTRY_UNUSED;
DPRINT1("First Sector: %I64u\n", NewPartEntry->StartSector.QuadPart);
DPRINT1("Last Sector: %I64u\n", NewPartEntry->StartSector.QuadPart + NewPartEntry->SectorCount.QuadPart - 1);
DPRINT1("Total Sectors: %I64u\n", NewPartEntry->SectorCount.QuadPart);
NewPartEntry->New = TRUE;
NewPartEntry->FormatState = Unformatted;
NewPartEntry->FileSystem = NULL;
NewPartEntry->BootIndicator = FALSE;
PartEntry->StartSector.QuadPart = NewPartEntry->StartSector.QuadPart + NewPartEntry->SectorCount.QuadPart;
PartEntry->SectorCount.QuadPart -= (PartEntry->StartSector.QuadPart - NewPartEntry->StartSector.QuadPart);
}
UpdateDiskLayout(DiskEntry);
DiskEntry->Dirty = TRUE;
AssignDriveLetters(List);
}
static
VOID
AddLogicalDiskSpace(
IN PDISKENTRY DiskEntry)
{
PPARTENTRY NewPartEntry;
DPRINT1("AddLogicalDiskSpace()\n");
/* Create a partition entry that represents the empty space in the container partition */
NewPartEntry = RtlAllocateHeap(ProcessHeap,
HEAP_ZERO_MEMORY,
sizeof(PARTENTRY));
if (NewPartEntry == NULL)
return;
NewPartEntry->DiskEntry = DiskEntry;
NewPartEntry->LogicalPartition = TRUE;
NewPartEntry->IsPartitioned = FALSE;
NewPartEntry->StartSector.QuadPart = DiskEntry->ExtendedPartition->StartSector.QuadPart + (ULONGLONG)DiskEntry->SectorAlignment;
NewPartEntry->SectorCount.QuadPart = DiskEntry->ExtendedPartition->SectorCount.QuadPart - (ULONGLONG)DiskEntry->SectorAlignment;
DPRINT1("First Sector: %I64u\n", NewPartEntry->StartSector.QuadPart);
DPRINT1("Last Sector: %I64u\n", NewPartEntry->StartSector.QuadPart + NewPartEntry->SectorCount.QuadPart - 1);
DPRINT1("Total Sectors: %I64u\n", NewPartEntry->SectorCount.QuadPart);
NewPartEntry->FormatState = Unformatted;
NewPartEntry->FileSystem = NULL;
InsertTailList(&DiskEntry->LogicalPartListHead,
&NewPartEntry->ListEntry);
}
VOID
CreateExtendedPartition(
IN PPARTLIST List,
IN ULONGLONG SectorCount)
{
PDISKENTRY DiskEntry;
PPARTENTRY PartEntry;
PPARTENTRY NewPartEntry;
DPRINT1("CreateExtendedPartition(%I64u)\n", SectorCount);
if (List == NULL ||
List->CurrentDisk == NULL ||
List->CurrentPartition == NULL ||
List->CurrentPartition->IsPartitioned != FALSE)
{
return;
}
DiskEntry = List->CurrentDisk;
PartEntry = List->CurrentPartition;
DPRINT1("Current partition sector count: %I64u\n", PartEntry->SectorCount.QuadPart);
if (AlignDown(PartEntry->StartSector.QuadPart + SectorCount, DiskEntry->SectorAlignment) - PartEntry->StartSector.QuadPart == PartEntry->SectorCount.QuadPart)
{
DPRINT1("Convert existing partition entry\n");
/* Convert current entry to 'new (unformatted)' */
PartEntry->IsPartitioned = TRUE;
PartEntry->FormatState = Formatted; // FIXME? Possibly to make GetNextUnformattedPartition work (i.e. skip the extended partition container)
PartEntry->FileSystem = NULL;
PartEntry->AutoCreate = FALSE;
PartEntry->New = FALSE;
PartEntry->BootIndicator = FALSE;
if (PartEntry->StartSector.QuadPart < 1450560)
{
/* Partition starts below the 8.4GB boundary ==> CHS partition */
PartEntry->PartitionType = PARTITION_EXTENDED;
}
else
{
/* Partition starts above the 8.4GB boundary ==> LBA partition */
PartEntry->PartitionType = PARTITION_XINT13_EXTENDED;
}
DiskEntry->ExtendedPartition = PartEntry;
DPRINT1("First Sector: %I64u\n", PartEntry->StartSector.QuadPart);
DPRINT1("Last Sector: %I64u\n", PartEntry->StartSector.QuadPart + PartEntry->SectorCount.QuadPart - 1);
DPRINT1("Total Sectors: %I64u\n", PartEntry->SectorCount.QuadPart);
}
else
{
DPRINT1("Add new partition entry\n");
/* Insert and initialize a new partition entry */
NewPartEntry = RtlAllocateHeap(ProcessHeap,
HEAP_ZERO_MEMORY,
sizeof(PARTENTRY));
if (NewPartEntry == NULL)
return;
/* Insert the new entry into the list */
InsertTailList(&PartEntry->ListEntry,
&NewPartEntry->ListEntry);
NewPartEntry->DiskEntry = DiskEntry;
NewPartEntry->IsPartitioned = TRUE;
NewPartEntry->StartSector.QuadPart = PartEntry->StartSector.QuadPart;
NewPartEntry->SectorCount.QuadPart = AlignDown(NewPartEntry->StartSector.QuadPart + SectorCount, DiskEntry->SectorAlignment) -
NewPartEntry->StartSector.QuadPart;
NewPartEntry->New = FALSE;
NewPartEntry->FormatState = Formatted; // FIXME? Possibly to make GetNextUnformattedPartition work (i.e. skip the extended partition container)
NewPartEntry->FileSystem = NULL;
NewPartEntry->BootIndicator = FALSE;
if (NewPartEntry->StartSector.QuadPart < 1450560)
{
/* Partition starts below the 8.4GB boundary ==> CHS partition */
NewPartEntry->PartitionType = PARTITION_EXTENDED;
}
else
{
/* Partition starts above the 8.4GB boundary ==> LBA partition */
NewPartEntry->PartitionType = PARTITION_XINT13_EXTENDED;
}
DiskEntry->ExtendedPartition = NewPartEntry;
PartEntry->StartSector.QuadPart = NewPartEntry->StartSector.QuadPart + NewPartEntry->SectorCount.QuadPart;
PartEntry->SectorCount.QuadPart -= (PartEntry->StartSector.QuadPart - NewPartEntry->StartSector.QuadPart);
DPRINT1("First Sector: %I64u\n", NewPartEntry->StartSector.QuadPart);
DPRINT1("Last Sector: %I64u\n", NewPartEntry->StartSector.QuadPart + NewPartEntry->SectorCount.QuadPart - 1);
DPRINT1("Total Sectors: %I64u\n", NewPartEntry->SectorCount.QuadPart);
}
AddLogicalDiskSpace(DiskEntry);
UpdateDiskLayout(DiskEntry);
DiskEntry->Dirty = TRUE;
AssignDriveLetters(List);
}
VOID
CreateLogicalPartition(
IN PPARTLIST List,
IN ULONGLONG SectorCount,
IN BOOLEAN AutoCreate)
{
PDISKENTRY DiskEntry;
PPARTENTRY PartEntry;
PPARTENTRY NewPartEntry;
DPRINT1("CreateLogicalPartition(%I64u)\n", SectorCount);
if (List == NULL ||
List->CurrentDisk == NULL ||
List->CurrentPartition == NULL ||
List->CurrentPartition->IsPartitioned != FALSE)
{
return;
}
DiskEntry = List->CurrentDisk;
PartEntry = List->CurrentPartition;
DPRINT1("Current partition sector count: %I64u\n", PartEntry->SectorCount.QuadPart);
if ((AutoCreate != FALSE) ||
(AlignDown(PartEntry->StartSector.QuadPart + SectorCount, DiskEntry->SectorAlignment) - PartEntry->StartSector.QuadPart == PartEntry->SectorCount.QuadPart))
{
DPRINT1("Convert existing partition entry\n");
/* Convert current entry to 'new (unformatted)' */
PartEntry->IsPartitioned = TRUE;
PartEntry->PartitionType = PARTITION_ENTRY_UNUSED;
PartEntry->FormatState = Unformatted;
PartEntry->FileSystem = NULL;
PartEntry->AutoCreate = FALSE;
PartEntry->New = TRUE;
PartEntry->BootIndicator = FALSE;
PartEntry->LogicalPartition = TRUE;
DPRINT1("First Sector: %I64u\n", PartEntry->StartSector.QuadPart);
DPRINT1("Last Sector: %I64u\n", PartEntry->StartSector.QuadPart + PartEntry->SectorCount.QuadPart - 1);
DPRINT1("Total Sectors: %I64u\n", PartEntry->SectorCount.QuadPart);
}
else
{
DPRINT1("Add new partition entry\n");
/* Insert and initialize a new partition entry */
NewPartEntry = RtlAllocateHeap(ProcessHeap,
HEAP_ZERO_MEMORY,
sizeof(PARTENTRY));
if (NewPartEntry == NULL)
return;
/* Insert the new entry into the list */
InsertTailList(&PartEntry->ListEntry,
&NewPartEntry->ListEntry);
NewPartEntry->DiskEntry = DiskEntry;
NewPartEntry->IsPartitioned = TRUE;
NewPartEntry->StartSector.QuadPart = PartEntry->StartSector.QuadPart;
NewPartEntry->SectorCount.QuadPart = AlignDown(NewPartEntry->StartSector.QuadPart + SectorCount, DiskEntry->SectorAlignment) -
NewPartEntry->StartSector.QuadPart;
NewPartEntry->PartitionType = PARTITION_ENTRY_UNUSED;
DPRINT1("First Sector: %I64u\n", NewPartEntry->StartSector.QuadPart);
DPRINT1("Last Sector: %I64u\n", NewPartEntry->StartSector.QuadPart + NewPartEntry->SectorCount.QuadPart - 1);
DPRINT1("Total Sectors: %I64u\n", NewPartEntry->SectorCount.QuadPart);
NewPartEntry->New = TRUE;
NewPartEntry->FormatState = Unformatted;
NewPartEntry->FileSystem = NULL;
NewPartEntry->BootIndicator = FALSE;
NewPartEntry->LogicalPartition = TRUE;
PartEntry->StartSector.QuadPart = NewPartEntry->StartSector.QuadPart + NewPartEntry->SectorCount.QuadPart;
PartEntry->SectorCount.QuadPart -= (PartEntry->StartSector.QuadPart - NewPartEntry->StartSector.QuadPart);
}
UpdateDiskLayout(DiskEntry);
DiskEntry->Dirty = TRUE;
AssignDriveLetters(List);
}
VOID
DeleteCurrentPartition(
IN PPARTLIST List)
{
PDISKENTRY DiskEntry;
PPARTENTRY PartEntry;
PPARTENTRY PrevPartEntry;
PPARTENTRY NextPartEntry;
PPARTENTRY LogicalPartEntry;
PLIST_ENTRY Entry;
if (List == NULL ||
List->CurrentDisk == NULL ||
List->CurrentPartition == NULL ||
List->CurrentPartition->IsPartitioned == FALSE)
{
return;
}
/* Clear the system disk and partition pointers if the system partition is being deleted */
if (List->SystemPartition == List->CurrentPartition)
{
List->SystemPartition = NULL;
}
DiskEntry = List->CurrentDisk;
PartEntry = List->CurrentPartition;
/* Delete all logical partition entries if an extended partition will be deleted */
if (DiskEntry->ExtendedPartition == PartEntry)
{
while (!IsListEmpty(&DiskEntry->LogicalPartListHead))
{
Entry = RemoveHeadList(&DiskEntry->LogicalPartListHead);
LogicalPartEntry = CONTAINING_RECORD(Entry, PARTENTRY, ListEntry);
RtlFreeHeap(ProcessHeap, 0, LogicalPartEntry);
}
DiskEntry->ExtendedPartition = NULL;
}
/* Adjust unpartitioned disk space entries */
/* Get pointer to previous and next unpartitioned entries */
PrevPartEntry = GetPrevUnpartitionedEntry(DiskEntry, PartEntry);
NextPartEntry = GetNextUnpartitionedEntry(DiskEntry, PartEntry);
if (PrevPartEntry != NULL && NextPartEntry != NULL)
{
/* Merge previous, current and next unpartitioned entry */
/* Adjust the previous entries length */
PrevPartEntry->SectorCount.QuadPart += (PartEntry->SectorCount.QuadPart + NextPartEntry->SectorCount.QuadPart);
/* Remove the current entry */
RemoveEntryList(&PartEntry->ListEntry);
RtlFreeHeap(ProcessHeap, 0, PartEntry);
/* Remove the next entry */
RemoveEntryList(&NextPartEntry->ListEntry);
RtlFreeHeap(ProcessHeap, 0, NextPartEntry);
/* Update current partition */
List->CurrentPartition = PrevPartEntry;
}
else if (PrevPartEntry != NULL && NextPartEntry == NULL)
{
/* Merge current and previous unpartitioned entry */
/* Adjust the previous entries length */
PrevPartEntry->SectorCount.QuadPart += PartEntry->SectorCount.QuadPart;
/* Remove the current entry */
RemoveEntryList(&PartEntry->ListEntry);
RtlFreeHeap(ProcessHeap, 0, PartEntry);
/* Update current partition */
List->CurrentPartition = PrevPartEntry;
}
else if (PrevPartEntry == NULL && NextPartEntry != NULL)
{
/* Merge current and next unpartitioned entry */
/* Adjust the next entries offset and length */
NextPartEntry->StartSector.QuadPart = PartEntry->StartSector.QuadPart;
NextPartEntry->SectorCount.QuadPart += PartEntry->SectorCount.QuadPart;
/* Remove the current entry */
RemoveEntryList(&PartEntry->ListEntry);
RtlFreeHeap(ProcessHeap, 0, PartEntry);
/* Update current partition */
List->CurrentPartition = NextPartEntry;
}
else
{
/* Nothing to merge but change current entry */
PartEntry->IsPartitioned = FALSE;
PartEntry->PartitionType = PARTITION_ENTRY_UNUSED;
PartEntry->FormatState = Unformatted;
PartEntry->FileSystem = NULL;
PartEntry->DriveLetter = 0;
}
UpdateDiskLayout(DiskEntry);
DiskEntry->Dirty = TRUE;
AssignDriveLetters(List);
}
VOID
CheckActiveSystemPartition(
IN PPARTLIST List)
{
PDISKENTRY DiskEntry;
PPARTENTRY PartEntry;
PLIST_ENTRY ListEntry;
PFILE_SYSTEM FileSystem;
/* Check for empty disk list */
if (IsListEmpty(&List->DiskListHead))
{
List->SystemPartition = NULL;
List->OriginalSystemPartition = NULL;
return;
}
/* Choose the currently selected disk */
DiskEntry = List->CurrentDisk;
/* Check for empty partition list */
if (IsListEmpty(&DiskEntry->PrimaryPartListHead))
{
List->SystemPartition = NULL;
List->OriginalSystemPartition = NULL;
return;
}
if (List->SystemPartition != NULL)
{
/* We already have an active system partition */
DPRINT1("Use the current system partition %lu in disk %lu, drive letter %c\n",
List->SystemPartition->PartitionNumber,
List->SystemPartition->DiskEntry->DiskNumber,
(List->SystemPartition->DriveLetter == 0) ? '-' : List->SystemPartition->DriveLetter);
return;
}
DPRINT1("We are here (1)!\n");
List->SystemPartition = NULL;
List->OriginalSystemPartition = NULL;
/* Retrieve the first partition of the disk */
PartEntry = CONTAINING_RECORD(DiskEntry->PrimaryPartListHead.Flink,
PARTENTRY,
ListEntry);
ASSERT(DiskEntry == PartEntry->DiskEntry);
List->SystemPartition = PartEntry;
//
// See: https://svn.reactos.org/svn/reactos/trunk/reactos/base/setup/usetup/partlist.c?r1=63355&r2=63354&pathrev=63355#l2318
//
/* Check if the disk is new and if so, use its first partition as the active system partition */
if (DiskEntry->NewDisk)
{
if (PartEntry->PartitionType == PARTITION_ENTRY_UNUSED || PartEntry->BootIndicator == FALSE)
{
ASSERT(DiskEntry == PartEntry->DiskEntry);
List->SystemPartition = PartEntry;
List->OriginalSystemPartition = List->SystemPartition;
DPRINT1("Use new first active system partition %lu in disk %lu, drive letter %c\n",
List->SystemPartition->PartitionNumber,
List->SystemPartition->DiskEntry->DiskNumber,
(List->SystemPartition->DriveLetter == 0) ? '-' : List->SystemPartition->DriveLetter);
goto SetSystemPartition;
}
// FIXME: What to do??
DPRINT1("NewDisk TRUE but first partition is used?\n");
}
DPRINT1("We are here (2)!\n");
/*
* The disk is not new, check if any partition is initialized;
* if not, the first one becomes the system partition.
*/
ListEntry = DiskEntry->PrimaryPartListHead.Flink;
while (ListEntry != &DiskEntry->PrimaryPartListHead)
{
/* Retrieve the partition and go to the next one */
PartEntry = CONTAINING_RECORD(ListEntry,
PARTENTRY,
ListEntry);
/* Check if the partition is partitioned and is used */
if (PartEntry->PartitionType != PARTITION_ENTRY_UNUSED || PartEntry->BootIndicator != FALSE)
{
break;
}
/* Go to the next one */
ListEntry = ListEntry->Flink;
}
if (ListEntry == &DiskEntry->PrimaryPartListHead)
{
/*
* OK we haven't encountered any used and active partition,
* so use the first one as the system partition.
*/
ASSERT(DiskEntry == List->SystemPartition->DiskEntry);
List->OriginalSystemPartition = List->SystemPartition; // First PartEntry
DPRINT1("Use first active system partition %lu in disk %lu, drive letter %c\n",
List->SystemPartition->PartitionNumber,
List->SystemPartition->DiskEntry->DiskNumber,
(List->SystemPartition->DriveLetter == 0) ? '-' : List->SystemPartition->DriveLetter);
goto SetSystemPartition;
}
List->SystemPartition = NULL;
List->OriginalSystemPartition = NULL;
DPRINT1("We are here (3)!\n");
/* The disk is not new, scan all partitions to find the (active) system partition */
ListEntry = DiskEntry->PrimaryPartListHead.Flink;
while (ListEntry != &DiskEntry->PrimaryPartListHead)
{
/* Retrieve the partition and go to the next one */
PartEntry = CONTAINING_RECORD(ListEntry,
PARTENTRY,
ListEntry);
ListEntry = ListEntry->Flink;
/* Check if the partition is partitioned and used */
if (PartEntry->IsPartitioned &&
PartEntry->PartitionType != PARTITION_ENTRY_UNUSED)
{
/* Check if the partition is active */
if (PartEntry->BootIndicator)
{
/* Yes, we found it */
ASSERT(DiskEntry == PartEntry->DiskEntry);
List->SystemPartition = PartEntry;
DPRINT1("Found active system partition %lu in disk %lu, drive letter %c\n",
PartEntry->PartitionNumber,
DiskEntry->DiskNumber,
(PartEntry->DriveLetter == 0) ? '-' : PartEntry->DriveLetter);
break;
}
}
}
/* Check if we have found the system partition */
if (List->SystemPartition == NULL)
{
/* Nothing, use the alternative system partition */
DPRINT1("No system partition found, use the alternative partition!\n");
goto UseAlternativeSystemPartition;
}
/* Save it */
List->OriginalSystemPartition = List->SystemPartition;
/*
* ADDITIONAL CHECKS / BIG HACK:
*
* Retrieve its file system and check whether we have
* write support for it. If that is the case we are fine
* and we can use it directly. However if we don't have
* write support we will need to change the active system
* partition.
*
* NOTE that this is completely useless on architectures
* where a real system partition is required, as on these
* architectures the partition uses the FAT FS, for which
* we do have write support.
* NOTE also that for those architectures looking for a
* partition boot indicator is insufficient.
*/
FileSystem = GetFileSystem(List->OriginalSystemPartition);
if (FileSystem == NULL)
{
DPRINT1("System partition %lu in disk %lu with no FS?!\n",
List->OriginalSystemPartition->PartitionNumber,
List->OriginalSystemPartition->DiskEntry->DiskNumber);
goto FindAndUseAlternativeSystemPartition;
}
// HACK: WARNING: We cannot write on this FS yet!
// See fsutil.c:GetFileSystem()
if (List->OriginalSystemPartition->PartitionType == PARTITION_EXT2 ||
List->OriginalSystemPartition->PartitionType == PARTITION_IFS)
{
DPRINT1("Recognized file system %S that doesn't support write support yet!\n",
FileSystem->FileSystemName);
goto FindAndUseAlternativeSystemPartition;
}
DPRINT1("Use existing active system partition %lu in disk %lu, drive letter %c\n",
List->SystemPartition->PartitionNumber,
List->SystemPartition->DiskEntry->DiskNumber,
(List->SystemPartition->DriveLetter == 0) ? '-' : List->SystemPartition->DriveLetter);
return;
FindAndUseAlternativeSystemPartition:
/*
* We are here because we have not found any (active) candidate
* system partition that we know how to support. What we are going
* to do is to change the existing system partition and use the
* partition on which we install ReactOS as the new system partition,
* and then we will need to add in FreeLdr's entry a boot entry to boot
* from the original system partition.
*/
/* Unset the old system partition */
List->SystemPartition->BootIndicator = FALSE;
List->SystemPartition->DiskEntry->LayoutBuffer->PartitionEntry[List->SystemPartition->PartitionIndex].BootIndicator = FALSE;
List->SystemPartition->DiskEntry->LayoutBuffer->PartitionEntry[List->SystemPartition->PartitionIndex].RewritePartition = TRUE;
List->SystemPartition->DiskEntry->Dirty = TRUE;
UseAlternativeSystemPartition:
List->SystemPartition = List->CurrentPartition;
DPRINT1("Use alternative active system partition %lu in disk %lu, drive letter %c\n",
List->SystemPartition->PartitionNumber,
List->SystemPartition->DiskEntry->DiskNumber,
(List->SystemPartition->DriveLetter == 0) ? '-' : List->SystemPartition->DriveLetter);
SetSystemPartition:
/* Set the new active system partition */
List->SystemPartition->BootIndicator = TRUE;
List->SystemPartition->DiskEntry->LayoutBuffer->PartitionEntry[List->SystemPartition->PartitionIndex].BootIndicator = TRUE;
List->SystemPartition->DiskEntry->LayoutBuffer->PartitionEntry[List->SystemPartition->PartitionIndex].RewritePartition = TRUE;
List->SystemPartition->DiskEntry->Dirty = TRUE;
}
static
NTSTATUS
WritePartitions(
IN PPARTLIST List,
IN PDISKENTRY DiskEntry)
{
WCHAR DstPath[MAX_PATH];
OBJECT_ATTRIBUTES ObjectAttributes;
IO_STATUS_BLOCK Iosb;
UNICODE_STRING Name;
ULONG BufferSize;
HANDLE FileHandle = NULL;
NTSTATUS Status;
DPRINT("WritePartitions() Disk: %lu\n", DiskEntry->DiskNumber);
RtlStringCchPrintfW(DstPath, ARRAYSIZE(DstPath),
L"\\Device\\Harddisk%lu\\Partition0",
DiskEntry->DiskNumber);
RtlInitUnicodeString(&Name, DstPath);
InitializeObjectAttributes(&ObjectAttributes,
&Name,
0,
NULL,
NULL);
Status = NtOpenFile(&FileHandle,
GENERIC_READ | GENERIC_WRITE | SYNCHRONIZE,
&ObjectAttributes,
&Iosb,
0,
FILE_SYNCHRONOUS_IO_NONALERT);
if (!NT_SUCCESS(Status))
{
DPRINT1("NtOpenFile() failed (Status %lx)\n", Status);
return Status;
}
#ifdef DUMP_PARTITION_TABLE
DumpPartitionTable(DiskEntry);
#endif
BufferSize = sizeof(DRIVE_LAYOUT_INFORMATION) +
((DiskEntry->LayoutBuffer->PartitionCount - 1) * sizeof(PARTITION_INFORMATION));
Status = NtDeviceIoControlFile(FileHandle,
NULL,
NULL,
NULL,
&Iosb,
IOCTL_DISK_SET_DRIVE_LAYOUT,
DiskEntry->LayoutBuffer,
BufferSize,
NULL,
0);
if (!NT_SUCCESS(Status))
{
DPRINT1("IOCTL_DISK_SET_DRIVE_LAYOUT failed (Status 0x%08lx)\n", Status);
}
if (FileHandle != NULL)
NtClose(FileHandle);
//
// NOTE: Originally (see r40437), we used to install here also a new MBR
// for this disk (by calling InstallMbrBootCodeToDisk), only if:
// DiskEntry->NewDisk == TRUE and DiskEntry->BiosDiskNumber == 0.
// Then after that, both DiskEntry->NewDisk and DiskEntry->NoMbr were set
// to FALSE. In the other place (in usetup.c) where InstallMbrBootCodeToDisk
// was called too, the installation test was modified by checking whether
// DiskEntry->NoMbr was TRUE (instead of NewDisk).
//
return Status;
}
BOOLEAN
WritePartitionsToDisk(
IN PPARTLIST List)
{
PLIST_ENTRY Entry;
PDISKENTRY DiskEntry;
if (List == NULL)
return TRUE;
Entry = List->DiskListHead.Flink;
while (Entry != &List->DiskListHead)
{
DiskEntry = CONTAINING_RECORD(Entry, DISKENTRY, ListEntry);
if (DiskEntry->Dirty != FALSE)
{
WritePartitions(List, DiskEntry);
DiskEntry->Dirty = FALSE;
}
Entry = Entry->Flink;
}
return TRUE;
}
BOOLEAN
SetMountedDeviceValue(
IN CHAR Letter,
IN ULONG Signature,
IN LARGE_INTEGER StartingOffset)
{
OBJECT_ATTRIBUTES ObjectAttributes;
WCHAR ValueNameBuffer[16];
UNICODE_STRING KeyName = RTL_CONSTANT_STRING(L"\\Registry\\Machine\\SYSTEM\\MountedDevices");
UNICODE_STRING ValueName;
REG_DISK_MOUNT_INFO MountInfo;
NTSTATUS Status;
HANDLE KeyHandle;
RtlStringCchPrintfW(ValueNameBuffer, ARRAYSIZE(ValueNameBuffer),
L"\\DosDevices\\%C:", Letter);
RtlInitUnicodeString(&ValueName, ValueNameBuffer);
InitializeObjectAttributes(&ObjectAttributes,
&KeyName,
OBJ_CASE_INSENSITIVE,
NULL,
NULL);
Status = NtOpenKey(&KeyHandle,
KEY_ALL_ACCESS,
&ObjectAttributes);
if (!NT_SUCCESS(Status))
{
Status = NtCreateKey(&KeyHandle,
KEY_ALL_ACCESS,
&ObjectAttributes,
0,
NULL,
REG_OPTION_NON_VOLATILE,
NULL);
}
if (!NT_SUCCESS(Status))
{
DPRINT1("NtCreateKey() failed (Status %lx)\n", Status);
return FALSE;
}
MountInfo.Signature = Signature;
MountInfo.StartingOffset = StartingOffset;
Status = NtSetValueKey(KeyHandle,
&ValueName,
0,
REG_BINARY,
(PVOID)&MountInfo,
sizeof(MountInfo));
NtClose(KeyHandle);
if (!NT_SUCCESS(Status))
{
DPRINT1("NtSetValueKey() failed (Status %lx)\n", Status);
return FALSE;
}
return TRUE;
}
BOOLEAN
SetMountedDeviceValues(
IN PPARTLIST List)
{
PLIST_ENTRY Entry1, Entry2;
PDISKENTRY DiskEntry;
PPARTENTRY PartEntry;
LARGE_INTEGER StartingOffset;
if (List == NULL)
return FALSE;
Entry1 = List->DiskListHead.Flink;
while (Entry1 != &List->DiskListHead)
{
DiskEntry = CONTAINING_RECORD(Entry1,
DISKENTRY,
ListEntry);
Entry2 = DiskEntry->PrimaryPartListHead.Flink;
while (Entry2 != &DiskEntry->PrimaryPartListHead)
{
PartEntry = CONTAINING_RECORD(Entry2, PARTENTRY, ListEntry);
if (PartEntry->IsPartitioned)
{
/* Assign a "\DosDevices\#:" mount point to this partition */
if (PartEntry->DriveLetter)
{
StartingOffset.QuadPart = PartEntry->StartSector.QuadPart * DiskEntry->BytesPerSector;
if (!SetMountedDeviceValue(PartEntry->DriveLetter,
DiskEntry->LayoutBuffer->Signature,
StartingOffset))
{
return FALSE;
}
}
}
Entry2 = Entry2->Flink;
}
Entry2 = DiskEntry->LogicalPartListHead.Flink;
while (Entry2 != &DiskEntry->LogicalPartListHead)
{
PartEntry = CONTAINING_RECORD(Entry2, PARTENTRY, ListEntry);
if (PartEntry->IsPartitioned)
{
/* Assign a "\DosDevices\#:" mount point to this partition */
if (PartEntry->DriveLetter)
{
StartingOffset.QuadPart = PartEntry->StartSector.QuadPart * DiskEntry->BytesPerSector;
if (!SetMountedDeviceValue(PartEntry->DriveLetter,
DiskEntry->LayoutBuffer->Signature,
StartingOffset))
{
return FALSE;
}
}
}
Entry2 = Entry2->Flink;
}
Entry1 = Entry1->Flink;
}
return TRUE;
}
VOID
SetPartitionType(
IN PPARTENTRY PartEntry,
IN UCHAR PartitionType)
{
PDISKENTRY DiskEntry = PartEntry->DiskEntry;
PartEntry->PartitionType = PartitionType;
DiskEntry->Dirty = TRUE;
DiskEntry->LayoutBuffer->PartitionEntry[PartEntry->PartitionIndex].PartitionType = PartitionType;
DiskEntry->LayoutBuffer->PartitionEntry[PartEntry->PartitionIndex].RewritePartition = TRUE;
}
ERROR_NUMBER
PrimaryPartitionCreationChecks(
IN PPARTLIST List)
{
PDISKENTRY DiskEntry;
PPARTENTRY PartEntry;
DiskEntry = List->CurrentDisk;
PartEntry = List->CurrentPartition;
/* Fail if the partition is already in use */
if (PartEntry->IsPartitioned != FALSE)
return ERROR_NEW_PARTITION;
/* Fail if there are already 4 primary partitions in the list */
if (GetPrimaryPartitionCount(DiskEntry) >= 4)
return ERROR_PARTITION_TABLE_FULL;
return ERROR_SUCCESS;
}
ERROR_NUMBER
ExtendedPartitionCreationChecks(
IN PPARTLIST List)
{
PDISKENTRY DiskEntry;
PPARTENTRY PartEntry;
DiskEntry = List->CurrentDisk;
PartEntry = List->CurrentPartition;
/* Fail if the partition is already in use */
if (PartEntry->IsPartitioned != FALSE)
return ERROR_NEW_PARTITION;
/* Fail if there are already 4 primary partitions in the list */
if (GetPrimaryPartitionCount(DiskEntry) >= 4)
return ERROR_PARTITION_TABLE_FULL;
/* Fail if there is another extended partition in the list */
if (DiskEntry->ExtendedPartition != NULL)
return ERROR_ONLY_ONE_EXTENDED;
return ERROR_SUCCESS;
}
ERROR_NUMBER
LogicalPartitionCreationChecks(
IN PPARTLIST List)
{
// PDISKENTRY DiskEntry;
PPARTENTRY PartEntry;
// DiskEntry = List->CurrentDisk;
PartEntry = List->CurrentPartition;
/* Fail if the partition is already in use */
if (PartEntry->IsPartitioned != FALSE)
return ERROR_NEW_PARTITION;
return ERROR_SUCCESS;
}
BOOLEAN
GetNextUnformattedPartition(
IN PPARTLIST List,
OUT PDISKENTRY *pDiskEntry OPTIONAL,
OUT PPARTENTRY *pPartEntry)
{
PLIST_ENTRY Entry1, Entry2;
PDISKENTRY DiskEntry;
PPARTENTRY PartEntry;
Entry1 = List->DiskListHead.Flink;
while (Entry1 != &List->DiskListHead)
{
DiskEntry = CONTAINING_RECORD(Entry1,
DISKENTRY,
ListEntry);
Entry2 = DiskEntry->PrimaryPartListHead.Flink;
while (Entry2 != &DiskEntry->PrimaryPartListHead)
{
PartEntry = CONTAINING_RECORD(Entry2, PARTENTRY, ListEntry);
if (PartEntry->IsPartitioned && PartEntry->New)
{
ASSERT(DiskEntry == PartEntry->DiskEntry);
if (pDiskEntry) *pDiskEntry = DiskEntry;
*pPartEntry = PartEntry;
return TRUE;
}
Entry2 = Entry2->Flink;
}
Entry2 = DiskEntry->LogicalPartListHead.Flink;
while (Entry2 != &DiskEntry->LogicalPartListHead)
{
PartEntry = CONTAINING_RECORD(Entry2, PARTENTRY, ListEntry);
if (PartEntry->IsPartitioned && PartEntry->New)
{
ASSERT(DiskEntry == PartEntry->DiskEntry);
if (pDiskEntry) *pDiskEntry = DiskEntry;
*pPartEntry = PartEntry;
return TRUE;
}
Entry2 = Entry2->Flink;
}
Entry1 = Entry1->Flink;
}
if (pDiskEntry) *pDiskEntry = NULL;
*pPartEntry = NULL;
return FALSE;
}
BOOLEAN
GetNextUncheckedPartition(
IN PPARTLIST List,
OUT PDISKENTRY *pDiskEntry OPTIONAL,
OUT PPARTENTRY *pPartEntry)
{
PLIST_ENTRY Entry1, Entry2;
PDISKENTRY DiskEntry;
PPARTENTRY PartEntry;
Entry1 = List->DiskListHead.Flink;
while (Entry1 != &List->DiskListHead)
{
DiskEntry = CONTAINING_RECORD(Entry1,
DISKENTRY,
ListEntry);
Entry2 = DiskEntry->PrimaryPartListHead.Flink;
while (Entry2 != &DiskEntry->PrimaryPartListHead)
{
PartEntry = CONTAINING_RECORD(Entry2, PARTENTRY, ListEntry);
if (PartEntry->NeedsCheck == TRUE)
{
ASSERT(DiskEntry == PartEntry->DiskEntry);
if (pDiskEntry) *pDiskEntry = DiskEntry;
*pPartEntry = PartEntry;
return TRUE;
}
Entry2 = Entry2->Flink;
}
Entry2 = DiskEntry->LogicalPartListHead.Flink;
while (Entry2 != &DiskEntry->LogicalPartListHead)
{
PartEntry = CONTAINING_RECORD(Entry2, PARTENTRY, ListEntry);
if (PartEntry->NeedsCheck == TRUE)
{
ASSERT(DiskEntry == PartEntry->DiskEntry);
if (pDiskEntry) *pDiskEntry = DiskEntry;
*pPartEntry = PartEntry;
return TRUE;
}
Entry2 = Entry2->Flink;
}
Entry1 = Entry1->Flink;
}
if (pDiskEntry) *pDiskEntry = NULL;
*pPartEntry = NULL;
return FALSE;
}
/* EOF */
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