ReactOS 0.4.15-dev-8093-g3285f69
hal.h File Reference
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Classes

struct  _PARTITION_DESCRIPTOR
 
struct  _BOOT_SECTOR_INFO
 
struct  _PARTITION_TABLE
 
struct  _DISK_LAYOUT
 
struct  _PTE
 

Macros

#define DISK_SIGNATURE_OFFSET   0x1B8
 
#define PARTITION_TABLE_OFFSET   0x1BE
 
#define BOOT_SIGNATURE_OFFSET   (0x200 - 2)
 
#define BOOT_RECORD_SIGNATURE   0xAA55
 
#define NUM_PARTITION_TABLE_ENTRIES   4
 
#define GET_STARTING_SECTOR(p)
 
#define GET_ENDING_S_OF_CHS(p)    ((UCHAR)(p->EndingCylinderLsb & 0x3F))
 
#define GET_PARTITION_LENGTH(p)
 
#define SET_PARTITION_LENGTH(p, l)
 

Typedefs

typedef struct _PARTITION_DESCRIPTOR PARTITION_DESCRIPTOR
 
typedef struct _PARTITION_DESCRIPTORPPARTITION_DESCRIPTOR
 
typedef struct _BOOT_SECTOR_INFO BOOT_SECTOR_INFO
 
typedef struct _BOOT_SECTOR_INFOPBOOT_SECTOR_INFO
 
typedef struct _PARTITION_TABLE PARTITION_TABLE
 
typedef struct _PARTITION_TABLEPPARTITION_TABLE
 
typedef struct _DISK_LAYOUT DISK_LAYOUT
 
typedef struct _DISK_LAYOUTPDISK_LAYOUT
 
typedef struct _PTE PTE
 
typedef struct _PTEPPTE
 

Functions

VOID FASTCALL xHalExamineMBR (IN PDEVICE_OBJECT DeviceObject, IN ULONG SectorSize, IN ULONG MbrTypeIdentifier, OUT PVOID *MbrBuffer)
 
VOID FASTCALL xHalIoAssignDriveLetters (IN PLOADER_PARAMETER_BLOCK LoaderBlock, IN PSTRING NtDeviceName, OUT PUCHAR NtSystemPath, OUT PSTRING NtSystemPathString)
 
NTSTATUS FASTCALL xHalIoReadPartitionTable (IN PDEVICE_OBJECT DeviceObject, IN ULONG SectorSize, IN BOOLEAN ReturnRecognizedPartitions, IN OUT PDRIVE_LAYOUT_INFORMATION *PartitionBuffer)
 
NTSTATUS FASTCALL xHalIoSetPartitionInformation (IN PDEVICE_OBJECT DeviceObject, IN ULONG SectorSize, IN ULONG PartitionNumber, IN ULONG PartitionType)
 
NTSTATUS FASTCALL xHalIoWritePartitionTable (IN PDEVICE_OBJECT DeviceObject, IN ULONG SectorSize, IN ULONG SectorsPerTrack, IN ULONG NumberOfHeads, IN PDRIVE_LAYOUT_INFORMATION PartitionBuffer)
 
VOID NTAPI xHalHaltSystem (VOID)
 
VOID NTAPI xHalEndOfBoot (VOID)
 
VOID NTAPI xHalSetWakeEnable (IN BOOLEAN Enable)
 
UCHAR NTAPI xHalVectorToIDTEntry (IN ULONG Vector)
 
NTSTATUS NTAPI xHalGetInterruptTranslator (IN INTERFACE_TYPE ParentInterfaceType, IN ULONG ParentBusNumber, IN INTERFACE_TYPE BridgeInterfaceType, IN USHORT Size, IN USHORT Version, OUT PTRANSLATOR_INTERFACE Translator, OUT PULONG BridgeBusNumber)
 
PBUS_HANDLER FASTCALL xHalHandlerForBus (IN INTERFACE_TYPE InterfaceType, IN ULONG BusNumber)
 
VOID FASTCALL xHalReferenceHandler (IN PBUS_HANDLER BusHandler)
 
NTSTATUS NTAPI xHalInitPnpDriver (VOID)
 
NTSTATUS NTAPI xHalInitPowerManagement (IN PPM_DISPATCH_TABLE PmDriverDispatchTable, OUT PPM_DISPATCH_TABLE *PmHalDispatchTable)
 
NTSTATUS NTAPI xHalStartMirroring (VOID)
 
NTSTATUS NTAPI xHalEndMirroring (IN ULONG PassNumber)
 
NTSTATUS NTAPI xHalMirrorPhysicalMemory (IN PHYSICAL_ADDRESS PhysicalAddress, IN LARGE_INTEGER NumberOfBytes)
 
NTSTATUS NTAPI xHalQueryBusSlots (IN PBUS_HANDLER BusHandler, IN ULONG BufferSize, OUT PULONG SlotNumbers, OUT PULONG ReturnedLength)
 
NTSTATUS NTAPI xHalSetSystemInformation (IN HAL_SET_INFORMATION_CLASS InformationClass, IN ULONG BufferSize, IN PVOID Buffer)
 
NTSTATUS NTAPI xHalQuerySystemInformation (IN HAL_QUERY_INFORMATION_CLASS InformationClass, IN ULONG BufferSize, IN OUT PVOID Buffer, OUT PULONG ReturnedLength)
 
VOID NTAPI xHalLocateHiberRanges (IN PVOID MemoryMap)
 
NTSTATUS NTAPI xHalRegisterBusHandler (IN INTERFACE_TYPE InterfaceType, IN BUS_DATA_TYPE ConfigSpace, IN ULONG BusNumber, IN INTERFACE_TYPE ParentInterfaceType, IN ULONG ParentBusNumber, IN ULONG ContextSize, IN PINSTALL_BUS_HANDLER InstallCallback, OUT PBUS_HANDLER *BusHandler)
 
VOID NTAPI xHalSetWakeAlarm (IN ULONGLONG AlartTime, IN PTIME_FIELDS TimeFields)
 
BOOLEAN NTAPI xHalTranslateBusAddress (IN INTERFACE_TYPE InterfaceType, IN ULONG BusNumber, IN PHYSICAL_ADDRESS BusAddress, IN OUT PULONG AddressSpace, OUT PPHYSICAL_ADDRESS TranslatedAddress)
 
NTSTATUS NTAPI xHalAllocateMapRegisters (IN PADAPTER_OBJECT AdapterObject, IN ULONG Unknown, IN ULONG Unknown2, PMAP_REGISTER_ENTRY Registers)
 
NTSTATUS NTAPI xKdSetupPciDeviceForDebugging (IN PVOID LoaderBlock OPTIONAL, IN OUT PDEBUG_DEVICE_DESCRIPTOR PciDevice)
 
NTSTATUS NTAPI xKdReleasePciDeviceForDebugging (IN OUT PDEBUG_DEVICE_DESCRIPTOR PciDevice)
 
PVOID NTAPI xKdGetAcpiTablePhase (IN struct _LOADER_PARAMETER_BLOCK *LoaderBlock, IN ULONG Signature)
 
PVOID NTAPI MatchAll (IN PHYSICAL_ADDRESS PhysicalAddress, IN ULONG NumberPages, IN BOOLEAN FlushCurrentTLB)
 
VOID NTAPI xKdUnmapVirtualAddress (IN PVOID VirtualAddress, IN ULONG NumberPages, IN BOOLEAN FlushCurrentTLB)
 

Macro Definition Documentation

◆ BOOT_RECORD_SIGNATURE

#define BOOT_RECORD_SIGNATURE   0xAA55

Definition at line 247 of file hal.h.

◆ BOOT_SIGNATURE_OFFSET

#define BOOT_SIGNATURE_OFFSET   (0x200 - 2)

Definition at line 245 of file hal.h.

◆ DISK_SIGNATURE_OFFSET

#define DISK_SIGNATURE_OFFSET   0x1B8

Definition at line 243 of file hal.h.

◆ GET_ENDING_S_OF_CHS

#define GET_ENDING_S_OF_CHS (   p)     ((UCHAR)(p->EndingCylinderLsb & 0x3F))

Definition at line 259 of file hal.h.

◆ GET_PARTITION_LENGTH

#define GET_PARTITION_LENGTH (   p)
Value:
((ULONG)(p->PartitionLengthLsb0) + \
(ULONG)(p->PartitionLengthLsb1 << 8) + \
(ULONG)(p->PartitionLengthMsb0 << 16) + \
(ULONG)(p->PartitionLengthMsb1 << 24))
GLfloat GLfloat p
Definition: glext.h:8902
uint32_t ULONG
Definition: typedefs.h:59

Definition at line 262 of file hal.h.

◆ GET_STARTING_SECTOR

#define GET_STARTING_SECTOR (   p)
Value:
((ULONG)(p->StartingSectorLsb0) + \
(ULONG)(p->StartingSectorLsb1 << 8 ) + \
(ULONG)(p->StartingSectorMsb0 << 16) + \
(ULONG)(p->StartingSectorMsb1 << 24))

Definition at line 253 of file hal.h.

◆ NUM_PARTITION_TABLE_ENTRIES

#define NUM_PARTITION_TABLE_ENTRIES   4

Definition at line 248 of file hal.h.

◆ PARTITION_TABLE_OFFSET

#define PARTITION_TABLE_OFFSET   0x1BE

Definition at line 244 of file hal.h.

◆ SET_PARTITION_LENGTH

#define SET_PARTITION_LENGTH (   p,
  l 
)
Value:
p->PartitionLengthLsb0 = l & 0xFF; \
p->PartitionLengthLsb1 = (l >> 8) & 0xFF; \
p->PartitionLengthMsb0 = (l >> 16) & 0xFF; \
p->PartitionLengthMsb1 = (l >> 24) & 0xFF
r l[0]
Definition: byte_order.h:168

Definition at line 268 of file hal.h.

Typedef Documentation

◆ BOOT_SECTOR_INFO

◆ DISK_LAYOUT

◆ PARTITION_DESCRIPTOR

◆ PARTITION_TABLE

◆ PBOOT_SECTOR_INFO

◆ PDISK_LAYOUT

◆ PPARTITION_DESCRIPTOR

◆ PPARTITION_TABLE

◆ PPTE

typedef struct _PTE * PPTE

◆ PTE

typedef struct _PTE PTE

Function Documentation

◆ MatchAll()

PVOID NTAPI MatchAll ( IN PHYSICAL_ADDRESS  PhysicalAddress,
IN ULONG  NumberPages,
IN BOOLEAN  FlushCurrentTLB 
)

Definition at line 277 of file halstub.c.

280{
281 return NULL;
282}
#define NULL
Definition: types.h:112

◆ xHalAllocateMapRegisters()

NTSTATUS NTAPI xHalAllocateMapRegisters ( IN PADAPTER_OBJECT  AdapterObject,
IN ULONG  Unknown,
IN ULONG  Unknown2,
PMAP_REGISTER_ENTRY  Registers 
)

Definition at line 242 of file halstub.c.

246{
247 PAGED_CODE();
248
250}
#define PAGED_CODE()
#define STATUS_NOT_IMPLEMENTED
Definition: ntstatus.h:239

◆ xHalEndMirroring()

NTSTATUS NTAPI xHalEndMirroring ( IN ULONG  PassNumber)

Definition at line 146 of file halstub.c.

147{
149}
#define STATUS_NOT_SUPPORTED
Definition: ntstatus.h:423

◆ xHalEndOfBoot()

VOID NTAPI xHalEndOfBoot ( VOID  )

Definition at line 88 of file halstub.c.

89{
90 PAGED_CODE();
91
92 /* Nothing */
93 return;
94}

◆ xHalExamineMBR()

VOID FASTCALL xHalExamineMBR ( IN PDEVICE_OBJECT  DeviceObject,
IN ULONG  SectorSize,
IN ULONG  MbrTypeIdentifier,
OUT PVOID MbrBuffer 
)

Definition at line 1643 of file disksup.c.

1647{
1649 PUCHAR Buffer;
1651 KEVENT Event;
1653 PIRP Irp;
1654 PPARTITION_DESCRIPTOR PartitionDescriptor;
1656 PIO_STACK_LOCATION IoStackLocation;
1657
1658 Offset.QuadPart = 0;
1659
1660 /* Assume failure */
1661 *MbrBuffer = NULL;
1662
1663 /* Normalize the buffer size */
1664 BufferSize = max(512, SectorSize);
1665
1666 /* Allocate the buffer */
1670 if (!Buffer) return;
1671
1672 /* Initialize the Event */
1674
1675 /* Build the IRP */
1678 Buffer,
1679 BufferSize,
1680 &Offset,
1681 &Event,
1682 &IoStatusBlock);
1683 if (!Irp)
1684 {
1685 /* Failed */
1687 return;
1688 }
1689
1690 /* Make sure to override volume verification */
1691 IoStackLocation = IoGetNextIrpStackLocation(Irp);
1692 IoStackLocation->Flags |= SL_OVERRIDE_VERIFY_VOLUME;
1693
1694 /* Call the driver */
1696 if (Status == STATUS_PENDING)
1697 {
1698 /* Wait for completion */
1701 }
1702
1703 /* Check driver Status */
1704 if (NT_SUCCESS(Status))
1705 {
1706 /* Validate the MBR Signature */
1708 {
1709 /* Failed */
1711 return;
1712 }
1713
1714 /* Get the partition entry */
1715 PartitionDescriptor = (PPARTITION_DESCRIPTOR)&Buffer[PARTITION_TABLE_OFFSET];
1716
1717 /* Make sure it's what the caller wanted */
1718 if (PartitionDescriptor->PartitionType != MbrTypeIdentifier)
1719 {
1720 /* It's not, free our buffer */
1722 }
1723 else
1724 {
1725 /* Check for OnTrack Disk Manager 6.0 / EZ-Drive partitions */
1726
1727 if (PartitionDescriptor->PartitionType == PARTITION_DM)
1728 {
1729 /* Return our buffer, but at sector 63 */
1730 *(PULONG)Buffer = 63;
1731 *MbrBuffer = Buffer;
1732 }
1733 else if (PartitionDescriptor->PartitionType == PARTITION_EZDRIVE)
1734 {
1735 /* EZ-Drive, return the buffer directly */
1736 *MbrBuffer = Buffer;
1737 }
1738 else
1739 {
1740 /* Otherwise crash on debug builds */
1741 ASSERT(PartitionDescriptor->PartitionType == PARTITION_EZDRIVE);
1742 }
1743 }
1744 }
1745}
LONG NTSTATUS
Definition: precomp.h:26
unsigned short * PUINT16
Definition: basetsd.h:192
Definition: bufpool.h:45
_In_ PIRP Irp
Definition: csq.h:116
#define BufferSize
Definition: mmc.h:75
#define FALSE
Definition: types.h:117
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
#define ExAllocatePoolWithTag(hernya, size, tag)
Definition: env_spec_w32.h:350
#define KeWaitForSingleObject(pEvt, foo, a, b, c)
Definition: env_spec_w32.h:478
#define KeInitializeEvent(pEvt, foo, foo2)
Definition: env_spec_w32.h:477
#define PAGE_SIZE
Definition: env_spec_w32.h:49
#define NonPagedPool
Definition: env_spec_w32.h:307
Status
Definition: gdiplustypes.h:25
#define ASSERT(a)
Definition: mode.c:44
#define ExFreePoolWithTag(_P, _T)
Definition: module.h:1109
static OUT PIO_STATUS_BLOCK IoStatusBlock
Definition: pipe.c:75
#define KernelMode
Definition: asm.h:34
#define PARTITION_EZDRIVE
Definition: ntdddisk.h:289
#define PARTITION_DM
Definition: ntdddisk.h:288
_In_ ULONG _In_ ULONG Offset
Definition: ntddpcm.h:101
@ NotificationEvent
struct _PARTITION_DESCRIPTOR * PPARTITION_DESCRIPTOR
#define PARTITION_TABLE_OFFSET
Definition: hal.h:244
#define BOOT_SIGNATURE_OFFSET
Definition: hal.h:245
PIRP NTAPI IoBuildSynchronousFsdRequest(IN ULONG MajorFunction, IN PDEVICE_OBJECT DeviceObject, IN PVOID Buffer, IN ULONG Length, IN PLARGE_INTEGER StartingOffset, IN PKEVENT Event, IN PIO_STATUS_BLOCK IoStatusBlock)
Definition: irp.c:1069
#define IoCallDriver
Definition: irp.c:1225
#define STATUS_PENDING
Definition: ntstatus.h:82
#define BOOT_RECORD_SIGNATURE
Definition: parttest.c:17
#define IRP_MJ_READ
Definition: rdpdr.c:46
UCHAR PartitionType
Definition: hal.h:283
#define max(a, b)
Definition: svc.c:63
#define TAG_FILE_SYSTEM
Definition: tag.h:65
uint32_t * PULONG
Definition: typedefs.h:59
unsigned char * PUCHAR
Definition: typedefs.h:53
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
_In_ WDFMEMORY _Out_opt_ size_t * BufferSize
Definition: wdfmemory.h:254
_In_ ULONG SectorSize
Definition: halfuncs.h:291
__drv_aliasesMem FORCEINLINE PIO_STACK_LOCATION IoGetNextIrpStackLocation(_In_ PIRP Irp)
Definition: iofuncs.h:2695
#define SL_OVERRIDE_VERIFY_VOLUME
Definition: iotypes.h:1823
@ Executive
Definition: ketypes.h:415

◆ xHalGetInterruptTranslator()

NTSTATUS NTAPI xHalGetInterruptTranslator ( IN INTERFACE_TYPE  ParentInterfaceType,
IN ULONG  ParentBusNumber,
IN INTERFACE_TYPE  BridgeInterfaceType,
IN USHORT  Size,
IN USHORT  Version,
OUT PTRANSLATOR_INTERFACE  Translator,
OUT PULONG  BridgeBusNumber 
)

Definition at line 156 of file translate.c.

163{
164 PAGED_CODE();
165
167 ASSERT(Size >= sizeof(TRANSLATOR_INTERFACE));
168
169 /* Only (E)ISA interfaces are supported */
170 if (BridgeInterfaceType == Internal || BridgeInterfaceType >= MicroChannel)
171 {
173 }
174
175 /* Fill in output struct */
176 Translator->Size = sizeof(TRANSLATOR_INTERFACE);
177 Translator->Version = HAL_IRQ_TRANSLATOR_VERSION;
178 /* In case caller set interface to undefined, faulty it to ISA */
179 Translator->Context = UlongToPtr((BridgeInterfaceType == InterfaceTypeUndefined) ? Isa : BridgeInterfaceType);
180 Translator->InterfaceReference = FstubTranslatorNull;
181 Translator->InterfaceDereference = FstubTranslatorNull;
182 Translator->TranslateResources = FstubTranslateResource;
183 Translator->TranslateResourceRequirements = FstubTranslateRequirement;
184
185 return STATUS_SUCCESS;
186}
#define UlongToPtr(u)
Definition: config.h:106
@ InterfaceTypeUndefined
Definition: hwresource.cpp:136
@ Internal
Definition: hwresource.cpp:137
@ MicroChannel
Definition: hwresource.cpp:140
@ Isa
Definition: hwresource.cpp:138
#define HAL_IRQ_TRANSLATOR_VERSION
Definition: haltypes.h:287
#define STATUS_SUCCESS
Definition: shellext.h:65
NTSTATUS NTAPI FstubTranslateRequirement(IN OUT PVOID Context OPTIONAL, IN PIO_RESOURCE_DESCRIPTOR Source, IN PDEVICE_OBJECT PhysicalDeviceObject, OUT PULONG TargetCount, OUT PIO_RESOURCE_DESCRIPTOR *Target)
Definition: translate.c:113
NTSTATUS NTAPI FstubTranslateResource(IN OUT PVOID Context OPTIONAL, IN PCM_PARTIAL_RESOURCE_DESCRIPTOR Source, IN RESOURCE_TRANSLATION_DIRECTION Direction, IN ULONG AlternativesCount OPTIONAL, IN IO_RESOURCE_DESCRIPTOR Alternatives[], IN PDEVICE_OBJECT PhysicalDeviceObject, OUT PCM_PARTIAL_RESOURCE_DESCRIPTOR Target)
Definition: translate.c:35
VOID NTAPI FstubTranslatorNull(PVOID Context)
Definition: translate.c:22
_Must_inspect_result_ _In_ WDFDEVICE _In_ PWDF_DEVICE_PROPERTY_DATA _In_ DEVPROPTYPE _In_ ULONG Size
Definition: wdfdevice.h:4533
_Must_inspect_result_ _In_ WDFDEVICE _In_ LPCGUID _Out_ PINTERFACE _In_ USHORT _In_ USHORT Version
Definition: wdffdo.h:469
struct _TRANSLATOR_INTERFACE TRANSLATOR_INTERFACE

◆ xHalHaltSystem()

VOID NTAPI xHalHaltSystem ( VOID  )

Definition at line 39 of file halstub.c.

40{
41 /* Halt execution */
42 while (TRUE);
43}
#define TRUE
Definition: types.h:120

◆ xHalHandlerForBus()

PBUS_HANDLER FASTCALL xHalHandlerForBus ( IN INTERFACE_TYPE  InterfaceType,
IN ULONG  BusNumber 
)

Definition at line 106 of file halstub.c.

108{
109 return NULL;
110}

◆ xHalInitPnpDriver()

NTSTATUS NTAPI xHalInitPnpDriver ( VOID  )

Definition at line 122 of file halstub.c.

123{
125}

◆ xHalInitPowerManagement()

NTSTATUS NTAPI xHalInitPowerManagement ( IN PPM_DISPATCH_TABLE  PmDriverDispatchTable,
OUT PPM_DISPATCH_TABLE PmHalDispatchTable 
)

Definition at line 129 of file halstub.c.

131{
133}

◆ xHalIoAssignDriveLetters()

VOID FASTCALL xHalIoAssignDriveLetters ( IN PLOADER_PARAMETER_BLOCK  LoaderBlock,
IN PSTRING  NtDeviceName,
OUT PUCHAR  NtSystemPath,
OUT PSTRING  NtSystemPathString 
)

Definition at line 912 of file disksup.c.

916{
917 USHORT i;
918 PULONG Devices;
920 WCHAR Buffer[50];
922 UCHAR DriveLetter;
923 BOOLEAN SystemFound;
924 IO_STATUS_BLOCK StatusBlock;
926 ANSI_STRING StringA1, StringA2;
927 PSTR Buffer1, Buffer2, LoadOptions;
929 PDRIVE_LAYOUT_INFORMATION LayoutInfo;
931 UNICODE_STRING StringU1, StringU2, StringU3;
932 ULONG Increment, DiskCount, RealDiskCount, HarddiskCount, PartitionCount, SystemPartition;
933
934 PAGED_CODE();
935
936 /* Get our disk count */
937 ConfigInfo = IoGetConfigurationInformation();
938 DiskCount = ConfigInfo->DiskCount;
939 RealDiskCount = 0;
940
941 /* Allocate two generic string buffers we'll use and reuser later on */
944 if (Buffer1 == NULL || Buffer2 == NULL)
945 {
946 KeBugCheck(ASSIGN_DRIVE_LETTERS_FAILED);
947 }
948
949 /* In case of a remote boot, setup system path */
951 {
952 PSTR Last, Saved;
953
954 /* Find last \ */
955 Last = strrchr(LoaderBlock->NtBootPathName, '\\');
956 Saved = NULL;
957 /* Misformed name, fail */
958 if (Last == NULL)
959 {
960 KeBugCheck(ASSIGN_DRIVE_LETTERS_FAILED);
961 }
962
963 /* In case the name was terminated by a \... */
964 if (Last[1] == ANSI_NULL)
965 {
966 /* Erase it, save position and find the previous \ */
967 *Last = ANSI_NULL;
968 Saved = Last;
969 Last = strrchr(LoaderBlock->NtBootPathName, '\\');
970 *Saved = '\\';
971 }
972
973 /* Misformed name, fail */
974 if (Last == NULL)
975 {
976 KeBugCheck(ASSIGN_DRIVE_LETTERS_FAILED);
977 }
978
979 /* For a remote boot, assign X drive letter */
980 NtSystemPath[0] = 'X';
981 NtSystemPath[1] = ':';
982 /* And copy the end of the boot path */
983 strcpy((PSTR)&NtSystemPath[2], Last);
984
985 /* If we had to remove the trailing \, remove it here too */
986 if (Saved != NULL)
987 {
988 NtSystemPath[strlen((PSTR)NtSystemPath) - 1] = ANSI_NULL;
989 }
990
991 /* Setup output string */
992 RtlInitString(NtSystemPathString, (PSTR)NtSystemPath);
993 }
994
995 /* For each of our disks, create the physical device DOS device */
996 Increment = 0;
997 if (DiskCount != 0)
998 {
999 for (i = 0; i < DiskCount; ++i)
1000 {
1001 /* Setup the origin name */
1002 sprintf(Buffer1, "\\Device\\Harddisk%d\\Partition%d", i, 0);
1003 RtlInitAnsiString(&StringA1, Buffer1);
1004 if (!NT_SUCCESS(RtlAnsiStringToUnicodeString(&StringU1, &StringA1, TRUE)))
1005 {
1006 /* We cannot fail */
1007 KeBugCheck(ASSIGN_DRIVE_LETTERS_FAILED);
1008 }
1009
1010 /* Open the device */
1012 &StringU1,
1014 NULL,
1015 NULL);
1019 &StatusBlock,
1022 if (NT_SUCCESS(Status))
1023 {
1024 /* If we managed, create the link */
1025 sprintf(Buffer2, "\\DosDevices\\PhysicalDrive%d", i);
1026 RtlInitAnsiString(&StringA2, Buffer2);
1027 Status = RtlAnsiStringToUnicodeString(&StringU2, &StringA2, TRUE);
1028 if (NT_SUCCESS(Status))
1029 {
1030 IoCreateSymbolicLink(&StringU2, &StringU1);
1031 RtlFreeUnicodeString(&StringU2);
1032 }
1033
1035
1036 RealDiskCount = i + 1;
1037 }
1038
1039 RtlFreeUnicodeString(&StringU1);
1040
1041 if (!NT_SUCCESS(Status))
1042 {
1043 if (Increment < 50)
1044 {
1045 ++Increment;
1046 ++DiskCount;
1047 }
1048 }
1049 }
1050 }
1051
1052 /* We done for our buffers */
1053 ExFreePoolWithTag(Buffer1, TAG_FSTUB);
1054 ExFreePoolWithTag(Buffer2, TAG_FSTUB);
1055
1056 /* Upcase our load options, if any */
1057 if (LoaderBlock->LoadOptions != NULL)
1058 {
1059 LoadOptions = _strupr(LoaderBlock->LoadOptions);
1060 }
1061 else
1062 {
1063 LoadOptions = NULL;
1064 }
1065
1066 /* If we boot with /MININT (system hive as volatile) option, assign X letter to boot device */
1067 if (LoadOptions != NULL &&
1068 strstr(LoadOptions, "MININT") != 0 &&
1069 NT_SUCCESS(RtlAnsiStringToUnicodeString(&StringU1, NtDeviceName, TRUE)))
1070 {
1071 if (NT_SUCCESS(HalpSetMountLetter(&StringU1, 'X')))
1072 {
1073 *NtSystemPath = 'X';
1074 }
1075
1076 RtlFreeUnicodeString(&StringU1);
1077 }
1078
1079 /* Compute our disks derangements */
1080 DiskCount -= Increment;
1081 if (RealDiskCount > DiskCount)
1082 {
1083 DiskCount = RealDiskCount;
1084 }
1085 Devices = IopComputeHarddiskDerangements(DiskCount);
1086
1087 /* Now, start browsing all our disks for assigning drive letters
1088 * Here, we'll only handle boot partition and primary partitions
1089 */
1090 HarddiskCount = 0;
1091 for (i = 0; i < DiskCount; ++i)
1092 {
1093 /* Get device ID according to derangements map */
1094 if (Devices != NULL)
1095 {
1096 HarddiskCount = Devices[i];
1097 }
1098
1099 /* Query disk layout */
1100 swprintf(Buffer, L"\\Device\\Harddisk%d\\Partition0", HarddiskCount);
1101 RtlInitUnicodeString(&StringU1, Buffer);
1102 if (!NT_SUCCESS(HalpQueryDriveLayout(&StringU1, &LayoutInfo)))
1103 {
1104 LayoutInfo = NULL;
1105 }
1106
1107 /* Assume we didn't find system */
1108 SystemFound = FALSE;
1109 swprintf(Buffer, L"\\Device\\Harddisk%d\\Partition%d", HarddiskCount, 1);
1110 RtlInitUnicodeString(&StringU1, Buffer);
1111 /* Query partition info for our disk */
1112 if (!NT_SUCCESS(HalpQueryPartitionType(&StringU1, LayoutInfo, &PartitionType)))
1113 {
1114 /* It failed, retry for all the partitions */
1115 for (PartitionCount = 1; ; ++PartitionCount)
1116 {
1117 swprintf(Buffer, L"\\Device\\Harddisk%d\\Partition%d", HarddiskCount, PartitionCount);
1118 RtlInitUnicodeString(&StringU1, Buffer);
1119 if (!NT_SUCCESS(HalpQueryPartitionType(&StringU1, LayoutInfo, &PartitionType)))
1120 {
1121 break;
1122 }
1123
1124 /* We found a primary partition, assign a drive letter */
1126 {
1127 HalpNextDriveLetter(&StringU1, NtDeviceName, NtSystemPath, 0);
1128 break;
1129 }
1130 }
1131 }
1132 else
1133 {
1134 /* All right */
1135 for (PartitionCount = 2; ; ++PartitionCount)
1136 {
1137 /* If our partition is bootable (MBR) or data (GPT), that's system partition */
1139 {
1140 SystemFound = TRUE;
1141
1142 /* Assign a drive letter and stop here if MBR */
1143 HalpNextDriveLetter(&StringU1, NtDeviceName, NtSystemPath, 0);
1145 {
1146 break;
1147 }
1148 }
1149
1150 /* Keep looping on all the partitions */
1151 swprintf(Buffer, L"\\Device\\Harddisk%d\\Partition%d", HarddiskCount, PartitionCount);
1152 RtlInitUnicodeString(&StringU1, Buffer);
1153 if (!NT_SUCCESS(HalpQueryPartitionType(&StringU1, LayoutInfo, &PartitionType)))
1154 {
1155 /* Mount every primary partition if we didn't find system */
1156 if (!SystemFound)
1157 {
1158 for (PartitionCount = 1; ; ++PartitionCount)
1159 {
1160 swprintf(Buffer, L"\\Device\\Harddisk%d\\Partition%d", HarddiskCount, PartitionCount);
1161 RtlInitUnicodeString(&StringU1, Buffer);
1162 if (!NT_SUCCESS(HalpQueryPartitionType(&StringU1, LayoutInfo, &PartitionType)))
1163 {
1164 break;
1165 }
1166
1168 {
1169 HalpNextDriveLetter(&StringU1, NtDeviceName, NtSystemPath, 0);
1170 break;
1171 }
1172 }
1173 }
1174
1175 break;
1176 }
1177 }
1178 }
1179
1180 /* Free layout, we'll reallocate it for next device */
1181 if (LayoutInfo != NULL)
1182 {
1183 ExFreePoolWithTag(LayoutInfo, TAG_FSTUB);
1184 }
1185
1186 HarddiskCount = i + 1;
1187 }
1188
1189 /* Now, assign logical partitions */
1190 for (i = 0; i < DiskCount; ++i)
1191 {
1192 /* Get device ID according to derangements map */
1193 if (Devices != NULL)
1194 {
1195 HarddiskCount = Devices[i];
1196 }
1197 else
1198 {
1199 HarddiskCount = i;
1200 }
1201
1202 /* Query device layout */
1203 swprintf(Buffer, L"\\Device\\Harddisk%d\\Partition0", HarddiskCount);
1204 RtlInitUnicodeString(&StringU1, Buffer);
1205 if (!NT_SUCCESS(HalpQueryDriveLayout(&StringU1, &LayoutInfo)))
1206 {
1207 LayoutInfo = NULL;
1208 }
1209
1210 /* And assign drive letter to logical partitions */
1211 for (PartitionCount = 1; ; ++PartitionCount)
1212 {
1213 swprintf(Buffer, L"\\Device\\Harddisk%d\\Partition%d", HarddiskCount, PartitionCount);
1214 RtlInitUnicodeString(&StringU1, Buffer);
1215 if (!NT_SUCCESS(HalpQueryPartitionType(&StringU1, LayoutInfo, &PartitionType)))
1216 {
1217 break;
1218 }
1219
1221 {
1222 HalpNextDriveLetter(&StringU1, NtDeviceName, NtSystemPath, 0);
1223 }
1224 }
1225
1226 /* Free layout, we'll reallocate it for next device */
1227 if (LayoutInfo != NULL)
1228 {
1229 ExFreePoolWithTag(LayoutInfo, 0);
1230 }
1231 }
1232
1233 /* Now, assign drive letters to everything else */
1234 for (i = 0; i < DiskCount; ++i)
1235 {
1236 /* Get device ID according to derangements map */
1237 if (Devices != NULL)
1238 {
1239 HarddiskCount = Devices[i];
1240 }
1241 else
1242 {
1243 HarddiskCount = i;
1244 }
1245
1246 /* Query device layout */
1247 swprintf(Buffer, L"\\Device\\Harddisk%d\\Partition0", HarddiskCount);
1248 RtlInitUnicodeString(&StringU1, Buffer);
1249 if (!NT_SUCCESS(HalpQueryDriveLayout(&StringU1, &LayoutInfo)))
1250 {
1251 LayoutInfo = NULL;
1252 }
1253
1254 /* Save system partition if any */
1255 SystemPartition = 0;
1256 for (PartitionCount = 1; ; ++PartitionCount)
1257 {
1258 swprintf(Buffer, L"\\Device\\Harddisk%d\\Partition%d", HarddiskCount, PartitionCount);
1259 RtlInitUnicodeString(&StringU1, Buffer);
1260 if (!NT_SUCCESS(HalpQueryPartitionType(&StringU1, LayoutInfo, &PartitionType)))
1261 {
1262 break;
1263 }
1264
1266 {
1267 SystemPartition = PartitionCount;
1268 }
1269 }
1270
1271 /* And assign drive letter to anything but system partition */
1272 for (PartitionCount = 1; ; ++PartitionCount)
1273 {
1274 if (PartitionCount != SystemPartition)
1275 {
1276 swprintf(Buffer, L"\\Device\\Harddisk%d\\Partition%d", HarddiskCount, PartitionCount);
1277 RtlInitUnicodeString(&StringU1, Buffer);
1278 if (!NT_SUCCESS(HalpQueryPartitionType(&StringU1, LayoutInfo, &PartitionType)))
1279 {
1280 if (LayoutInfo != NULL)
1281 {
1282 ExFreePoolWithTag(LayoutInfo, 0);
1283 }
1284
1285 break;
1286 }
1287
1289 {
1290 HalpNextDriveLetter(&StringU1, NtDeviceName, NtSystemPath, 0);
1291 }
1292 }
1293 }
1294 }
1295
1296 /* We're done with disks, if we have a device map, free it */
1297 if (Devices != NULL)
1298 {
1299 ExFreePoolWithTag(Devices, TAG_FSTUB);
1300 }
1301
1302 /* Now, assign drive letter to floppy drives */
1303 for (i = 0; i < ConfigInfo->FloppyCount; ++i)
1304 {
1305 swprintf(Buffer, L"\\Device\\Floppy%d", i);
1306 RtlInitUnicodeString(&StringU1, Buffer);
1307 if (HalpIsOldStyleFloppy(&StringU1))
1308 {
1309 HalpNextDriveLetter(&StringU1, NtDeviceName, NtSystemPath, TRUE);
1310 }
1311 }
1312
1313 /* And CD drives */
1314 for (i = 0; i < ConfigInfo->CdRomCount; ++i)
1315 {
1316 swprintf(Buffer, L"\\Device\\CdRom%d", i);
1317 RtlInitUnicodeString(&StringU1, Buffer);
1318 HalpNextDriveLetter(&StringU1, NtDeviceName, NtSystemPath, TRUE);
1319 }
1320
1321 /* If not remote boot, handle NtDeviceName */
1322 if (!IoRemoteBootClient && NT_SUCCESS(RtlAnsiStringToUnicodeString(&StringU1, NtDeviceName, TRUE)))
1323 {
1324 /* Assign it a drive letter */
1325 DriveLetter = HalpNextDriveLetter(&StringU1, NULL, NULL, TRUE);
1326 if (DriveLetter != 0)
1327 {
1328 if (DriveLetter != 0xFF)
1329 {
1330 *NtSystemPath = DriveLetter;
1331 }
1332 }
1333 /* If it fails through mount manager, retry manually */
1334 else
1335 {
1336 RtlInitUnicodeString(&StringU2, L"\\Device\\Floppy");
1337 RtlInitUnicodeString(&StringU3, L"\\Device\\CdRom");
1338
1339 if (RtlPrefixUnicodeString(&StringU2, &StringU1, TRUE))
1340 {
1341 DriveLetter = 'A';
1342 }
1343 else if (RtlPrefixUnicodeString(&StringU3, &StringU1, TRUE))
1344 {
1345 DriveLetter = 'D';
1346 }
1347 else
1348 {
1349 DriveLetter = 'C';
1350 }
1351
1352 /* Try any drive letter */
1353 while (HalpSetMountLetter(&StringU1, DriveLetter) != STATUS_SUCCESS)
1354 {
1355 ++DriveLetter;
1356
1357 if (DriveLetter > 'Z')
1358 {
1359 break;
1360 }
1361 }
1362
1363 /* If we're beyond Z (ie, no slot left) */
1364 if (DriveLetter > 'Z')
1365 {
1366 /* Delete Z, and reuse it for system */
1368 HalpSetMountLetter(&StringU1, 'Z');
1369 *NtSystemPath = 'Z';
1370 }
1371 else
1372 {
1373 /* Return matching drive letter */
1374 *NtSystemPath = DriveLetter;
1375 }
1376 }
1377
1378 RtlFreeUnicodeString(&StringU1);
1379 }
1380
1381 /* Enable auto assignement for mountmgr */
1383}
unsigned char BOOLEAN
char * strstr(char *String1, char *String2)
Definition: utclib.c:653
ACPI_SIZE strlen(const char *String)
Definition: utclib.c:269
char * strcpy(char *DstString, const char *SrcString)
Definition: utclib.c:388
DECLSPEC_NORETURN VOID NTAPI KeBugCheck(ULONG BugCheckCode)
Definition: bug.c:1430
IN PUNICODE_STRING IN POBJECT_ATTRIBUTES ObjectAttributes
Definition: conport.c:36
enum _PARTITION_TYPE PARTITION_TYPE
NTSTATUS HalpDeleteMountLetter(UCHAR DriveLetter)
Definition: disksup.c:766
PULONG IopComputeHarddiskDerangements(IN ULONG DiskCount)
Definition: disksup.c:320
NTSTATUS HalpQueryPartitionType(IN PUNICODE_STRING DeviceName, IN PDRIVE_LAYOUT_INFORMATION LayoutInfo, OUT PPARTITION_TYPE PartitionType)
Definition: disksup.c:165
BOOLEAN HalpIsOldStyleFloppy(PUNICODE_STRING DeviceName)
Definition: disksup.c:707
NTSTATUS HalpSetMountLetter(IN PUNICODE_STRING DeviceName, UCHAR DriveLetter)
Definition: disksup.c:522
UCHAR HalpNextDriveLetter(IN PUNICODE_STRING DeviceName, IN PSTRING NtDeviceName, OUT PUCHAR NtSystemPath, BOOLEAN IsRemovable)
Definition: disksup.c:607
NTSTATUS FASTCALL HalpQueryDriveLayout(IN PUNICODE_STRING DeviceName, OUT PDRIVE_LAYOUT_INFORMATION *LayoutInfo)
Definition: disksup.c:56
@ DataPartition
Definition: disksup.c:51
@ PrimaryPartition
Definition: disksup.c:47
@ BootablePartition
Definition: disksup.c:46
@ LogicalPartition
Definition: disksup.c:48
@ FtPartition
Definition: disksup.c:49
VOID HalpEnableAutomaticDriveLetterAssignment(VOID)
Definition: disksup.c:857
#define FILE_SHARE_READ
Definition: compat.h:136
#define swprintf
Definition: precomp.h:40
IN OUT PLONG IN OUT PLONG Addend IN OUT PLONG IN LONG Increment
Definition: CrNtStubs.h:46
_Must_inspect_result_ _In_opt_ PFLT_INSTANCE _Out_ PHANDLE FileHandle
Definition: fltkernel.h:1231
#define FILE_SYNCHRONOUS_IO_NONALERT
Definition: from_kernel.h:31
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
#define OBJ_CASE_INSENSITIVE
Definition: winternl.h:228
PCONFIGURATION_INFORMATION NTAPI IoGetConfigurationInformation(VOID)
Returns a pointer to the I/O manager's global configuration information structure.
Definition: iorsrce.c:998
#define sprintf(buf, format,...)
Definition: sprintf.c:55
#define InitializeObjectAttributes(p, n, a, r, s)
Definition: reg.c:106
NTSYSAPI NTSTATUS NTAPI ZwOpenFile(_Out_ PHANDLE FileHandle, _In_ ACCESS_MASK DesiredAccess, _In_ POBJECT_ATTRIBUTES ObjectAttributes, _Out_ PIO_STATUS_BLOCK IoStatusBlock, _In_ ULONG ShareAccess, _In_ ULONG OpenOptions)
NTSYSAPI NTSTATUS NTAPI ZwClose(_In_ HANDLE Handle)
#define SYNCHRONIZE
Definition: nt_native.h:61
#define FILE_READ_DATA
Definition: nt_native.h:628
NTSYSAPI VOID NTAPI RtlInitString(PSTRING DestinationString, PCSZ SourceString)
NTSYSAPI NTSTATUS NTAPI RtlAnsiStringToUnicodeString(PUNICODE_STRING DestinationString, PANSI_STRING SourceString, BOOLEAN AllocateDestinationString)
NTSYSAPI VOID NTAPI RtlInitUnicodeString(PUNICODE_STRING DestinationString, PCWSTR SourceString)
NTSYSAPI VOID NTAPI RtlFreeUnicodeString(PUNICODE_STRING UnicodeString)
NTSYSAPI BOOLEAN NTAPI RtlPrefixUnicodeString(IN PUNICODE_STRING String1, IN PUNICODE_STRING String2, IN BOOLEAN CaseInSensitive)
NTSYSAPI VOID NTAPI RtlInitAnsiString(PANSI_STRING DestinationString, PCSZ SourceString)
#define ANSI_NULL
BOOLEAN IoRemoteBootClient
Definition: init.c:70
#define L(x)
Definition: ntvdm.h:50
CHAR PartitionType
Definition: part_xbox.c:32
unsigned short USHORT
Definition: pedump.c:61
_CRTIMP char *__cdecl _strupr(_Inout_z_ char *_String)
_Check_return_ _CRTIMP _CONST_RETURN char *__cdecl strrchr(_In_z_ const char *_Str, _In_ int _Ch)
#define TAG_FSTUB
Definition: tag.h:54
char * PSTR
Definition: typedefs.h:51
static PPARTENTRY SystemPartition
Definition: usetup.c:61
unsigned char UCHAR
Definition: xmlstorage.h:181
__wchar_t WCHAR
Definition: xmlstorage.h:180

◆ xHalIoReadPartitionTable()

NTSTATUS FASTCALL xHalIoReadPartitionTable ( IN PDEVICE_OBJECT  DeviceObject,
IN ULONG  SectorSize,
IN BOOLEAN  ReturnRecognizedPartitions,
IN OUT PDRIVE_LAYOUT_INFORMATION PartitionBuffer 
)

Definition at line 1768 of file disksup.c.

1772{
1773 KEVENT Event;
1775 PIRP Irp;
1776 PPARTITION_DESCRIPTOR PartitionDescriptor;
1777 CCHAR Entry;
1780 PUCHAR Buffer = NULL;
1781 ULONG BufferSize = 2048, InputSize;
1782 PDRIVE_LAYOUT_INFORMATION DriveLayoutInfo = NULL;
1783 LONG j = -1, i = -1, k;
1784 DISK_GEOMETRY_EX DiskGeometryEx;
1785 LONGLONG EndSector, MaxSector, StartOffset;
1786 LARGE_INTEGER Offset, VolumeOffset;
1787 BOOLEAN IsPrimary = TRUE, IsEzDrive = FALSE, MbrFound = FALSE;
1788 BOOLEAN IsValid, IsEmpty = TRUE;
1789 PVOID MbrBuffer;
1790 PIO_STACK_LOCATION IoStackLocation;
1792 LARGE_INTEGER HiddenSectors64;
1793
1794 PAGED_CODE();
1795
1796 VolumeOffset.QuadPart = Offset.QuadPart = 0;
1797
1798 /* Allocate the buffer */
1800 BufferSize,
1803
1804 /* Normalize the buffer size */
1805 InputSize = max(512, SectorSize);
1806
1807 /* Check for EZ-Drive */
1808 HalExamineMBR(DeviceObject, InputSize, PARTITION_EZDRIVE, &MbrBuffer);
1809 if (MbrBuffer)
1810 {
1811 /* EZ-Drive found, bias the offset */
1812 IsEzDrive = TRUE;
1814 Offset.QuadPart = 512;
1815 }
1816
1817 /* Get drive geometry */
1818 Status = HalpGetFullGeometry(DeviceObject, &DiskGeometryEx);
1819 if (!NT_SUCCESS(Status))
1820 {
1823 return Status;
1824 }
1825
1826 /* Get the end and maximum sector */
1827 EndSector = DiskGeometryEx.DiskSize.QuadPart / DiskGeometryEx.Geometry.BytesPerSector;
1828 MaxSector = EndSector << 1;
1829 DPRINT("FSTUB: DiskSize = %#I64x, MaxSector = %#I64x\n",
1830 DiskGeometryEx.DiskSize, MaxSector);
1831
1832 /* Allocate our buffer */
1834 if (!Buffer)
1835 {
1836 /* Fail, free the input buffer */
1840 }
1841
1842 /* Start partition loop */
1843 do
1844 {
1845 /* Assume the partition is valid */
1846 IsValid = TRUE;
1847
1848 /* Initialize the event */
1850
1851 /* Clear the buffer and build the IRP */
1852 RtlZeroMemory(Buffer, InputSize);
1855 Buffer,
1856 InputSize,
1857 &Offset,
1858 &Event,
1859 &IoStatusBlock);
1860 if (!Irp)
1861 {
1862 /* Failed */
1864 break;
1865 }
1866
1867 /* Make sure to disable volume verification */
1868 IoStackLocation = IoGetNextIrpStackLocation(Irp);
1869 IoStackLocation->Flags |= SL_OVERRIDE_VERIFY_VOLUME;
1870
1871 /* Call the driver */
1873 if (Status == STATUS_PENDING)
1874 {
1875 /* Wait for completion */
1878 }
1879
1880 /* Normalize status code and check for failure */
1882 if (!NT_SUCCESS(Status)) break;
1883
1884 /* If we biased for EZ-Drive, unbias now */
1885 if (IsEzDrive && (Offset.QuadPart == 512)) Offset.QuadPart = 0;
1886
1887 /* Make sure this is a valid MBR */
1889 {
1890 /* It's not, fail */
1891 DPRINT1("FSTUB: (IoReadPartitionTable) No 0xaa55 found in "
1892 "partition table %d\n", j + 1);
1893 break;
1894 }
1895
1896 /* At this point we have a valid MBR */
1897 MbrFound = TRUE;
1898
1899 /* Check if we weren't given an offset */
1900 if (!Offset.QuadPart)
1901 {
1902 /* Then read the signature off the disk */
1903 (*PartitionBuffer)->Signature = *(PUINT32)&Buffer[DISK_SIGNATURE_OFFSET];
1904 }
1905
1906 /* Get the partition descriptor array */
1907 PartitionDescriptor = (PPARTITION_DESCRIPTOR)&Buffer[PARTITION_TABLE_OFFSET];
1908
1909 /* Start looping partitions */
1910 j++;
1911 DPRINT("FSTUB: Partition Table %d:\n", j);
1912 for (Entry = 1, k = 0; Entry <= NUM_PARTITION_TABLE_ENTRIES; Entry++, PartitionDescriptor++)
1913 {
1914 /* Get the partition type */
1915 PartitionType = PartitionDescriptor->PartitionType;
1916
1917 /* Print debug messages */
1918 DPRINT("Partition Entry %d,%d: type %#x %s\n",
1919 j,
1920 Entry,
1922 (PartitionDescriptor->ActiveFlag) ? "Active" : "");
1923 DPRINT("\tOffset %#08lx for %#08lx Sectors\n",
1924 GET_STARTING_SECTOR(PartitionDescriptor),
1925 GET_PARTITION_LENGTH(PartitionDescriptor));
1926
1927 /* Check whether we're facing a protective MBR */
1929 {
1930 /* Partition length might be bigger than disk size */
1931 FstubFixupEfiPartition(PartitionDescriptor, DiskGeometryEx.DiskSize.QuadPart);
1932 }
1933
1934 /* Make sure that the partition is valid, unless it's the first */
1935 if (!(HalpIsValidPartitionEntry(PartitionDescriptor,
1936 DiskGeometryEx.DiskSize.QuadPart,
1937 MaxSector)) && (j == 0))
1938 {
1939 /* It's invalid, so fail */
1940 IsValid = FALSE;
1941 break;
1942 }
1943
1944 /* Check if it's a container */
1946 {
1947 /* Increase the count of containers */
1948 if (++k != 1)
1949 {
1950 /* More then one table is invalid */
1951 DPRINT1("FSTUB: Multiple container partitions found in "
1952 "partition table %d\n - table is invalid\n",
1953 j);
1954 IsValid = FALSE;
1955 break;
1956 }
1957 }
1958
1959 /* Check if the partition is supposedly empty */
1960 if (IsEmpty)
1961 {
1962 /* But check if it actually has a start and/or length */
1963 if ((GET_STARTING_SECTOR(PartitionDescriptor)) ||
1964 (GET_PARTITION_LENGTH(PartitionDescriptor)))
1965 {
1966 /* So then it's not really empty */
1967 IsEmpty = FALSE;
1968 }
1969 }
1970
1971 /* Check if the caller wanted only recognized partitions */
1973 {
1974 /* Then check if this one is unused, or a container */
1977 {
1978 /* Skip it, since the caller doesn't want it */
1979 continue;
1980 }
1981 }
1982
1983 /* Increase the structure count and check if they can fit */
1984 if ((sizeof(DRIVE_LAYOUT_INFORMATION) +
1985 (++i * sizeof(PARTITION_INFORMATION))) >
1986 BufferSize)
1987 {
1988 /* Allocate a new buffer that's twice as big */
1989 DriveLayoutInfo = ExAllocatePoolWithTag(NonPagedPool,
1990 BufferSize << 1,
1992 if (!DriveLayoutInfo)
1993 {
1994 /* Out of memory, undo this extra structure */
1995 --i;
1997 break;
1998 }
1999
2000 /* Copy the contents of the old buffer */
2001 RtlMoveMemory(DriveLayoutInfo,
2003 BufferSize);
2004
2005 /* Free the old buffer and set this one as the new one */
2007 *PartitionBuffer = DriveLayoutInfo;
2008
2009 /* Double the size */
2010 BufferSize <<= 1;
2011 }
2012
2013 /* Now get the current structure being filled and initialize it */
2014 PartitionInfo = &(*PartitionBuffer)->PartitionEntry[i];
2015 PartitionInfo->PartitionType = PartitionType;
2016 PartitionInfo->RewritePartition = FALSE;
2017
2018 /* Check if we're dealing with a partition that's in use */
2020 {
2021 /* Check if it's bootable */
2022 PartitionInfo->BootIndicator = PartitionDescriptor->
2023 ActiveFlag & 0x80 ?
2024 TRUE : FALSE;
2025
2026 /* Check if its' a container */
2028 {
2029 /* Then don't recognize it and use the volume offset */
2030 PartitionInfo->RecognizedPartition = FALSE;
2031 StartOffset = VolumeOffset.QuadPart;
2032 }
2033 else
2034 {
2035 /* Then recognize it and use the partition offset */
2036 PartitionInfo->RecognizedPartition = TRUE;
2037 StartOffset = Offset.QuadPart;
2038 }
2039
2040 /* Get the starting offset */
2041 PartitionInfo->StartingOffset.QuadPart =
2042 StartOffset +
2043 UInt32x32To64(GET_STARTING_SECTOR(PartitionDescriptor),
2044 SectorSize);
2045
2046 /* Calculate the number of hidden sectors */
2047 HiddenSectors64.QuadPart = (PartitionInfo->
2048 StartingOffset.QuadPart -
2049 StartOffset) /
2050 SectorSize;
2051 PartitionInfo->HiddenSectors = HiddenSectors64.LowPart;
2052
2053 /* Get the partition length */
2054 PartitionInfo->PartitionLength.QuadPart =
2055 UInt32x32To64(GET_PARTITION_LENGTH(PartitionDescriptor),
2056 SectorSize);
2057
2058 /* Get the partition number */
2059 /* FIXME: REACTOS HACK -- Needed for xHalIoAssignDriveLetters() */
2060 PartitionInfo->PartitionNumber = (!IsContainerPartition(PartitionType)) ? i + 1 : 0;
2061 }
2062 else
2063 {
2064 /* Otherwise, clear all the relevant fields */
2065 PartitionInfo->BootIndicator = FALSE;
2066 PartitionInfo->RecognizedPartition = FALSE;
2067 PartitionInfo->StartingOffset.QuadPart = 0;
2068 PartitionInfo->PartitionLength.QuadPart = 0;
2069 PartitionInfo->HiddenSectors = 0;
2070
2071 /* FIXME: REACTOS HACK -- Needed for xHalIoAssignDriveLetters() */
2072 PartitionInfo->PartitionNumber = 0;
2073 }
2074 }
2075
2076 /* Finish debug log, and check for failure */
2077 DPRINT("\n");
2078 if (!NT_SUCCESS(Status)) break;
2079
2080 /* Also check if we hit an invalid entry here */
2081 if (!IsValid)
2082 {
2083 /* We did, so break out of the loop minus one entry */
2084 j--;
2085 break;
2086 }
2087
2088 /* Reset the offset */
2089 Offset.QuadPart = 0;
2090
2091 /* Go back to the descriptor array and loop it */
2092 PartitionDescriptor = (PPARTITION_DESCRIPTOR)&Buffer[PARTITION_TABLE_OFFSET];
2093 for (Entry = 1; Entry <= NUM_PARTITION_TABLE_ENTRIES; Entry++, PartitionDescriptor++)
2094 {
2095 /* Check if this is a container partition, since we skipped them */
2096 if (IsContainerPartition(PartitionDescriptor->PartitionType))
2097 {
2098 /* Get its offset */
2099 Offset.QuadPart = VolumeOffset.QuadPart +
2101 GET_STARTING_SECTOR(PartitionDescriptor),
2102 SectorSize);
2103
2104 /* If this is a primary partition, this is the volume offset */
2105 if (IsPrimary) VolumeOffset = Offset;
2106
2107 /* Also update the maximum sector */
2108 MaxSector = GET_PARTITION_LENGTH(PartitionDescriptor);
2109 DPRINT1("FSTUB: MaxSector now = %I64d\n", MaxSector);
2110 break;
2111 }
2112 }
2113
2114 /* Loop the next partitions, which are not primary anymore */
2115 IsPrimary = FALSE;
2116 } while (Offset.HighPart | Offset.LowPart);
2117
2118 /* Check if this is a removable device that's probably a super-floppy */
2119 if ((DiskGeometryEx.Geometry.MediaType == RemovableMedia) &&
2120 (j == 0) && (MbrFound) && (IsEmpty))
2121 {
2122 PBOOT_SECTOR_INFO BootSectorInfo = (PBOOT_SECTOR_INFO)Buffer;
2123
2124 /* Read the jump bytes to detect super-floppy */
2125 if ((BootSectorInfo->JumpByte[0] == 0xeb) ||
2126 (BootSectorInfo->JumpByte[0] == 0xe9))
2127 {
2128 /* Super floppes don't have typical MBRs, so skip them */
2129 DPRINT1("FSTUB: Jump byte %#x found along with empty partition "
2130 "table - disk is a super floppy and has no valid MBR\n",
2131 BootSectorInfo->JumpByte);
2132 j = -1;
2133 }
2134 }
2135
2136 /* Check if we're still at partition -1 */
2137 if (j == -1)
2138 {
2139 /* The likely cause is the super floppy detection above */
2140 if ((MbrFound) || (DiskGeometryEx.Geometry.MediaType == RemovableMedia))
2141 {
2142 /* Print out debugging information */
2143 DPRINT1("FSTUB: Drive %#p has no valid MBR. Make it into a "
2144 "super-floppy\n",
2145 DeviceObject);
2146 DPRINT1("FSTUB: Drive has %I64d sectors and is %#016I64x "
2147 "bytes large\n",
2148 EndSector, DiskGeometryEx.DiskSize);
2149
2150 /* We should at least have some sectors */
2151 if (EndSector > 0)
2152 {
2153 /* Get the entry we'll use */
2154 PartitionInfo = &(*PartitionBuffer)->PartitionEntry[0];
2155
2156 /* Fill it out with data for a super-floppy */
2157 PartitionInfo->RewritePartition = FALSE;
2158 PartitionInfo->RecognizedPartition = TRUE;
2159 PartitionInfo->PartitionType = PARTITION_FAT_16;
2160 PartitionInfo->BootIndicator = FALSE;
2161 PartitionInfo->HiddenSectors = 0;
2162 PartitionInfo->StartingOffset.QuadPart = 0;
2163 PartitionInfo->PartitionLength = DiskGeometryEx.DiskSize;
2164
2165 /* FIXME: REACTOS HACK -- Needed for xHalIoAssignDriveLetters() */
2166 PartitionInfo->PartitionNumber = 0;
2167
2168 /* Set the signature and set the count back to 0 */
2169 (*PartitionBuffer)->Signature = 1;
2170 i = 0;
2171 }
2172 }
2173 else
2174 {
2175 /* Otherwise, this isn't a super floppy, so set an invalid count */
2176 i = -1;
2177 }
2178 }
2179
2180 /* Set the partition count */
2181 (*PartitionBuffer)->PartitionCount = ++i;
2182
2183 /* If we have no count, delete the signature */
2184 if (!i) (*PartitionBuffer)->Signature = 0;
2185
2186 /* Free the buffer and check for success */
2188 if (!NT_SUCCESS(Status))
2189 {
2192 }
2193
2194 /* Return status */
2195 return Status;
2196}
#define DPRINT1
Definition: precomp.h:8
unsigned int * PUINT32
Definition: basetsd.h:125
#define PARTITION_ENTRY_UNUSED
Definition: disk.h:86
#define PARTITION_FAT_16
Definition: disk.h:90
_In_ PFCB _In_ LONGLONG StartingOffset
Definition: cdprocs.h:291
NTSTATUS NTAPI HalpGetFullGeometry(IN PDEVICE_OBJECT DeviceObject, OUT PDISK_GEOMETRY_EX Geometry)
Definition: disksup.c:1389
VOID NTAPI FstubFixupEfiPartition(IN PPARTITION_DESCRIPTOR PartitionDescriptor, IN ULONGLONG MaxOffset)
Definition: disksup.c:1749
#define EFI_PMBR_OSTYPE_EFI
Definition: disksup.c:25
BOOLEAN NTAPI HalpIsValidPartitionEntry(IN PPARTITION_DESCRIPTOR Entry, IN ULONGLONG MaxOffset, IN ULONGLONG MaxSector)
Definition: disksup.c:1441
@ IsEmpty
Definition: atl_ax.c:995
#define NonPagedPoolCacheAligned
Definition: env_spec_w32.h:310
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint GLint GLint j
Definition: glfuncs.h:250
#define UInt32x32To64(a, b)
Definition: intsafe.h:252
int k
Definition: mpi.c:3369
#define IsContainerPartition(PartitionType)
Definition: ntdddisk.h:316
@ RemovableMedia
Definition: ntdddisk.h:387
#define DISK_SIGNATURE_OFFSET
Definition: hal.h:243
#define GET_PARTITION_LENGTH(p)
Definition: hal.h:262
#define GET_STARTING_SECTOR(p)
Definition: hal.h:253
struct _BOOT_SECTOR_INFO * PBOOT_SECTOR_INFO
#define NUM_PARTITION_TABLE_ENTRIES
Definition: hal.h:248
#define HalExamineMBR
Definition: part_xbox.c:325
long LONG
Definition: pedump.c:60
#define DPRINT
Definition: sndvol32.h:73
base of all file and directory entries
Definition: entries.h:83
UCHAR JumpByte[1]
Definition: hal.h:302
DISK_GEOMETRY Geometry
Definition: winioctl.h:330
LARGE_INTEGER DiskSize
Definition: winioctl.h:331
MEDIA_TYPE MediaType
Definition: ntdddisk.h:406
ULONG BytesPerSector
Definition: ntdddisk.h:409
UCHAR ActiveFlag
Definition: hal.h:279
int64_t LONGLONG
Definition: typedefs.h:68
#define RtlZeroMemory(Destination, Length)
Definition: typedefs.h:262
#define RtlMoveMemory(Destination, Source, Length)
Definition: typedefs.h:264
char CCHAR
Definition: typedefs.h:51
#define STATUS_NO_DATA_DETECTED
Definition: udferr_usr.h:131
#define STATUS_INSUFFICIENT_RESOURCES
Definition: udferr_usr.h:158
LONGLONG QuadPart
Definition: typedefs.h:114
ULONG LowPart
Definition: typedefs.h:106
_In_ ULONG _In_ BOOLEAN ReturnRecognizedPartitions
Definition: iofuncs.h:2051
_In_ ULONG _In_ struct _SET_PARTITION_INFORMATION_EX * PartitionInfo
Definition: iofuncs.h:2105
_In_ ULONG _In_ BOOLEAN _Out_ struct _DRIVE_LAYOUT_INFORMATION ** PartitionBuffer
Definition: iofuncs.h:2052

◆ xHalIoSetPartitionInformation()

NTSTATUS FASTCALL xHalIoSetPartitionInformation ( IN PDEVICE_OBJECT  DeviceObject,
IN ULONG  SectorSize,
IN ULONG  PartitionNumber,
IN ULONG  PartitionType 
)

Definition at line 2200 of file disksup.c.

2204{
2205 PIRP Irp;
2206 KEVENT Event;
2209 LARGE_INTEGER Offset, VolumeOffset;
2210 PUCHAR Buffer = NULL;
2212 ULONG i = 0;
2213 ULONG Entry;
2214 PPARTITION_DESCRIPTOR PartitionDescriptor;
2215 BOOLEAN IsPrimary = TRUE, IsEzDrive = FALSE;
2216 PVOID MbrBuffer;
2217 PIO_STACK_LOCATION IoStackLocation;
2218
2219 PAGED_CODE();
2220
2221 VolumeOffset.QuadPart = Offset.QuadPart = 0;
2222
2223 /* Normalize the buffer size */
2224 BufferSize = max(512, SectorSize);
2225
2226 /* Check for EZ-Drive */
2228 if (MbrBuffer)
2229 {
2230 /* EZ-Drive found, bias the offset */
2231 IsEzDrive = TRUE;
2233 Offset.QuadPart = 512;
2234 }
2235
2236 /* Allocate our partition buffer */
2239
2240 /* Initialize the event we'll use and loop partitions */
2242 do
2243 {
2244 /* Reset the event since we reuse it */
2246
2247 /* Build the read IRP */
2250 Buffer,
2251 BufferSize,
2252 &Offset,
2253 &Event,
2254 &IoStatusBlock);
2255 if (!Irp)
2256 {
2257 /* Fail */
2259 break;
2260 }
2261
2262 /* Make sure to disable volume verification */
2263 IoStackLocation = IoGetNextIrpStackLocation(Irp);
2264 IoStackLocation->Flags |= SL_OVERRIDE_VERIFY_VOLUME;
2265
2266 /* Call the driver */
2268 if (Status == STATUS_PENDING)
2269 {
2270 /* Wait for completion */
2273 }
2274
2275 /* Check for failure */
2276 if (!NT_SUCCESS(Status)) break;
2277
2278 /* If we biased for EZ-Drive, unbias now */
2279 if (IsEzDrive && (Offset.QuadPart == 512)) Offset.QuadPart = 0;
2280
2281 /* Make sure this is a valid MBR */
2283 {
2284 /* It's not, fail */
2286 break;
2287 }
2288
2289 /* Get the partition descriptors and loop them */
2290 PartitionDescriptor = (PPARTITION_DESCRIPTOR)&Buffer[PARTITION_TABLE_OFFSET];
2291 for (Entry = 1; Entry <= NUM_PARTITION_TABLE_ENTRIES; Entry++, PartitionDescriptor++)
2292 {
2293 /* Check if it's unused or a container partition */
2294 if ((PartitionDescriptor->PartitionType == PARTITION_ENTRY_UNUSED) ||
2295 (IsContainerPartition(PartitionDescriptor->PartitionType)))
2296 {
2297 /* Go to the next one */
2298 continue;
2299 }
2300
2301 /* It's a valid partition, so increase the partition count */
2302 if (++i == PartitionNumber)
2303 {
2304 /* We found a match, set the type */
2305 PartitionDescriptor->PartitionType = (UCHAR)PartitionType;
2306
2307 /* Reset the reusable event */
2309
2310 /* Build the write IRP */
2313 Buffer,
2314 BufferSize,
2315 &Offset,
2316 &Event,
2317 &IoStatusBlock);
2318 if (!Irp)
2319 {
2320 /* Fail */
2322 break;
2323 }
2324
2325 /* Disable volume verification */
2326 IoStackLocation = IoGetNextIrpStackLocation(Irp);
2327 IoStackLocation->Flags |= SL_OVERRIDE_VERIFY_VOLUME;
2328
2329 /* Call the driver */
2331 if (Status == STATUS_PENDING)
2332 {
2333 /* Wait for completion */
2335 Executive,
2336 KernelMode,
2337 FALSE,
2338 NULL);
2340 }
2341
2342 /* We're done, break out of the loop */
2343 break;
2344 }
2345 }
2346
2347 /* If we looped all the partitions, break out */
2348 if (Entry <= NUM_PARTITION_TABLE_ENTRIES) break;
2349
2350 /* Nothing found yet, get the partition array again */
2351 PartitionDescriptor = (PPARTITION_DESCRIPTOR)&Buffer[PARTITION_TABLE_OFFSET];
2352 for (Entry = 1; Entry <= NUM_PARTITION_TABLE_ENTRIES; Entry++, PartitionDescriptor++)
2353 {
2354 /* Check if this was a container partition (we skipped these) */
2355 if (IsContainerPartition(PartitionDescriptor->PartitionType))
2356 {
2357 /* Update the partition offset */
2358 Offset.QuadPart = VolumeOffset.QuadPart +
2359 GET_STARTING_SECTOR(PartitionDescriptor) *
2360 SectorSize;
2361
2362 /* If this was the primary partition, update the volume too */
2363 if (IsPrimary) VolumeOffset = Offset;
2364 break;
2365 }
2366 }
2367
2368 /* Check if we already searched all the partitions */
2370 {
2371 /* Then we failed to find a good MBR */
2373 break;
2374 }
2375
2376 /* Loop the next partitions, which are not primary anymore */
2377 IsPrimary = FALSE;
2378 } while (i < PartitionNumber);
2379
2380 /* Everything done, cleanup */
2382 return Status;
2383}
VOID NTAPI KeClearEvent(IN PKEVENT Event)
Definition: eventobj.c:22
#define STATUS_BAD_MASTER_BOOT_RECORD
Definition: ntstatus.h:405
#define IRP_MJ_WRITE
Definition: rdpdr.c:47
_In_ ULONG _In_ ULONG PartitionNumber
Definition: iofuncs.h:2061

◆ xHalIoWritePartitionTable()

NTSTATUS FASTCALL xHalIoWritePartitionTable ( IN PDEVICE_OBJECT  DeviceObject,
IN ULONG  SectorSize,
IN ULONG  SectorsPerTrack,
IN ULONG  NumberOfHeads,
IN PDRIVE_LAYOUT_INFORMATION  PartitionBuffer 
)

Definition at line 2387 of file disksup.c.

2392{
2393 KEVENT Event;
2395 PIRP Irp;
2398 PUCHAR Buffer;
2399 PPTE Entry;
2400 PPARTITION_TABLE PartitionTable;
2401 LARGE_INTEGER Offset, NextOffset, ExtendedOffset, SectorOffset;
2402 LARGE_INTEGER StartOffset, PartitionLength;
2403 ULONG i, j;
2404 CCHAR k;
2405 BOOLEAN IsEzDrive = FALSE, IsSuperFloppy = FALSE, DoRewrite = FALSE, IsMbr;
2406 ULONG ConventionalCylinders;
2407 LONGLONG DiskSize;
2409 PVOID MbrBuffer;
2411 PIO_STACK_LOCATION IoStackLocation;
2414
2415 PAGED_CODE();
2416
2417 ExtendedOffset.QuadPart = NextOffset.QuadPart = Offset.QuadPart = 0;
2418
2419 /* Normalize the buffer size */
2420 BufferSize = max(512, SectorSize);
2421
2422 /* Get the partial drive geometry */
2423 xHalGetPartialGeometry(DeviceObject, &ConventionalCylinders, &DiskSize);
2424
2425 /* Check for EZ-Drive */
2427 if (MbrBuffer)
2428 {
2429 /* EZ-Drive found, bias the offset */
2430 IsEzDrive = TRUE;
2432 Offset.QuadPart = 512;
2433 }
2434
2435 /* Get the number of bits to shift to multiply by the sector size */
2436 for (k = 0; k < 32; k++) if ((SectorSize >> k) == 1) break;
2437
2438 /* Check if there's only one partition */
2439 if (PartitionBuffer->PartitionCount == 1)
2440 {
2441 /* Check if it has no starting offset or hidden sectors */
2442 if (!(PartitionInfo->StartingOffset.QuadPart) &&
2443 !(PartitionInfo->HiddenSectors))
2444 {
2445 /* Then it's a super floppy */
2447
2448 /* Which also means it must be non-bootable FAT-16 */
2449 if ((PartitionInfo->PartitionNumber) ||
2450 (PartitionInfo->PartitionType != PARTITION_FAT_16) ||
2451 (PartitionInfo->BootIndicator))
2452 {
2453 /* It's not, so we fail */
2455 }
2456
2457 /* Check if it needs a rewrite, and disable EZ-Drive for sure */
2458 if (PartitionInfo->RewritePartition) DoRewrite = TRUE;
2459 IsEzDrive = FALSE;
2460 }
2461 }
2462
2463 /* Count the number of partition tables */
2465
2466 /* Allocate our partition buffer */
2469
2470 /* Loop the entries */
2472 for (i = 0; i < DiskLayout->TableCount; i++)
2473 {
2474 /* Set if this is the MBR partition */
2475 IsMbr= (BOOLEAN)!i;
2476
2477 /* Initialize th event */
2479
2480 /* Build the read IRP */
2483 Buffer,
2484 BufferSize,
2485 &Offset,
2486 &Event,
2487 &IoStatusBlock);
2488 if (!Irp)
2489 {
2490 /* Fail */
2492 break;
2493 }
2494
2495 /* Make sure to disable volume verification */
2496 IoStackLocation = IoGetNextIrpStackLocation(Irp);
2497 IoStackLocation->Flags |= SL_OVERRIDE_VERIFY_VOLUME;
2498
2499 /* Call the driver */
2501 if (Status == STATUS_PENDING)
2502 {
2503 /* Wait for completion */
2506 }
2507
2508 /* Check for failure */
2509 if (!NT_SUCCESS(Status)) break;
2510
2511 /* If we biased for EZ-Drive, unbias now */
2512 if (IsEzDrive && (Offset.QuadPart == 512)) Offset.QuadPart = 0;
2513
2514 /* Check if this is a normal disk */
2515 if (!IsSuperFloppy)
2516 {
2517 /* Set the boot record signature */
2519
2520 /* By default, don't require a rewrite */
2521 DoRewrite = FALSE;
2522
2523 /* Check if we don't have an offset */
2524 if (!Offset.QuadPart)
2525 {
2526 /* Check if the signature doesn't match */
2528 {
2529 /* Then write the signature and now we need a rewrite */
2531 DoRewrite = TRUE;
2532 }
2533 }
2534
2535 /* Loop the partition table entries */
2536 PartitionTable = &DiskLayout->PartitionTable[i];
2537 for (j = 0; j < NUM_PARTITION_TABLE_ENTRIES; j++)
2538 {
2539 /* Get the current entry and type */
2540 TableEntry = &PartitionTable->PartitionEntry[j];
2541 PartitionType = TableEntry->PartitionType;
2542
2543 /* Check if the entry needs a rewrite */
2544 if (TableEntry->RewritePartition)
2545 {
2546 /* Then we need one too */
2547 DoRewrite = TRUE;
2548
2549 /* Save the type and if it's a bootable partition */
2550 Entry[j].PartitionType = TableEntry->PartitionType;
2551 Entry[j].ActiveFlag = TableEntry->BootIndicator ? 0x80 : 0;
2552
2553 /* Make sure it's used */
2555 {
2556 /* Make sure it's not a container (unless primary) */
2557 if ((IsMbr) || !(IsContainerPartition(PartitionType)))
2558 {
2559 /* Use the partition offset */
2560 StartOffset.QuadPart = Offset.QuadPart;
2561 }
2562 else
2563 {
2564 /* Use the extended logical partition offset */
2565 StartOffset.QuadPart = ExtendedOffset.QuadPart;
2566 }
2567
2568 /* Set the sector offset */
2569 SectorOffset.QuadPart = TableEntry->
2570 StartingOffset.QuadPart -
2571 StartOffset.QuadPart;
2572
2573 /* Now calculate the starting sector */
2574 StartOffset.QuadPart = SectorOffset.QuadPart >> k;
2575 Entry[j].StartingSector = StartOffset.LowPart;
2576
2577 /* As well as the length */
2578 PartitionLength.QuadPart = TableEntry->PartitionLength.
2579 QuadPart >> k;
2580 Entry[j].PartitionLength = PartitionLength.LowPart;
2581
2582 /* Calculate the CHS values */
2583 HalpCalculateChsValues(&TableEntry->StartingOffset,
2584 &TableEntry->PartitionLength,
2585 k,
2588 ConventionalCylinders,
2590 &Entry[j]);
2591 }
2592 else
2593 {
2594 /* Otherwise set up an empty entry */
2595 Entry[j].StartingSector = 0;
2596 Entry[j].PartitionLength = 0;
2597 Entry[j].StartingTrack = 0;
2598 Entry[j].EndingTrack = 0;
2599 Entry[j].StartingCylinder = 0;
2600 Entry[j].EndingCylinder = 0;
2601 }
2602 }
2603
2604 /* Check if this is a container partition */
2606 {
2607 /* Then update the offset to use */
2608 NextOffset = TableEntry->StartingOffset;
2609 }
2610 }
2611 }
2612
2613 /* Check if we need to write back the buffer */
2614 if (DoRewrite)
2615 {
2616 /* We don't need to do this again */
2617 DoRewrite = FALSE;
2618
2619 /* Initialize the event */
2621
2622 /* If we unbiased for EZ-Drive, rebias now */
2623 if (IsEzDrive && !Offset.QuadPart) Offset.QuadPart = 512;
2624
2625 /* Build the write IRP */
2628 Buffer,
2629 BufferSize,
2630 &Offset,
2631 &Event,
2632 &IoStatusBlock);
2633 if (!Irp)
2634 {
2635 /* Fail */
2637 break;
2638 }
2639
2640 /* Make sure to disable volume verification */
2641 IoStackLocation = IoGetNextIrpStackLocation(Irp);
2642 IoStackLocation->Flags |= SL_OVERRIDE_VERIFY_VOLUME;
2643
2644 /* Call the driver */
2646 if (Status == STATUS_PENDING)
2647 {
2648 /* Wait for completion */
2650 Executive,
2651 KernelMode,
2652 FALSE,
2653 NULL);
2655 }
2656
2657 /* Check for failure */
2658 if (!NT_SUCCESS(Status)) break;
2659
2660 /* If we biased for EZ-Drive, unbias now */
2661 if (IsEzDrive && (Offset.QuadPart == 512)) Offset.QuadPart = 0;
2662 }
2663
2664 /* Update the partition offset and set the extended offset if needed */
2665 Offset = NextOffset;
2666 if (IsMbr) ExtendedOffset = NextOffset;
2667 }
2668
2669 /* If we had a buffer, free it, then return status */
2671 return Status;
2672}
#define SectorOffset(L)
Definition: cdprocs.h:1622
VOID NTAPI HalpCalculateChsValues(IN PLARGE_INTEGER PartitionOffset, IN PLARGE_INTEGER PartitionLength, IN CCHAR ShiftCount, IN ULONG SectorsPerTrack, IN ULONG NumberOfTracks, IN ULONG ConventionalCylinders, OUT PPARTITION_DESCRIPTOR PartitionDescriptor)
Definition: disksup.c:1482
VOID FASTCALL xHalGetPartialGeometry(IN PDEVICE_OBJECT DeviceObject, IN PULONG ConventionalCylinders, IN PLONGLONG DiskSize)
Definition: disksup.c:1557
struct _DISK_LAYOUT * PDISK_LAYOUT
struct _PTE * PPTE
#define BOOLEAN
Definition: pedump.c:73
BOOLEAN IsSuperFloppy(IN PDISKENTRY DiskEntry)
Definition: partlist.c:501
ULONG TableCount
Definition: hal.h:324
PARTITION_TABLE PartitionTable[1]
Definition: hal.h:326
PARTITION_INFORMATION PartitionEntry[4]
Definition: hal.h:319
Definition: hal.h:333
#define STATUS_INVALID_PARAMETER
Definition: udferr_usr.h:135
_In_ ULONG _In_ ULONG _In_ ULONG NumberOfHeads
Definition: iofuncs.h:2072
_In_ ULONG _In_ ULONG SectorsPerTrack
Definition: iofuncs.h:2071
_Must_inspect_result_ typedef _In_ ULONG TableEntry
Definition: iotypes.h:4303
ret QuadPart
Definition: rtlfuncs.h:3089

◆ xHalLocateHiberRanges()

VOID NTAPI xHalLocateHiberRanges ( IN PVOID  MemoryMap)

Definition at line 196 of file halstub.c.

197{
198 /* Nothing */
199 return;
200}

◆ xHalMirrorPhysicalMemory()

NTSTATUS NTAPI xHalMirrorPhysicalMemory ( IN PHYSICAL_ADDRESS  PhysicalAddress,
IN LARGE_INTEGER  NumberOfBytes 
)

Definition at line 153 of file halstub.c.

155{
157}

◆ xHalQueryBusSlots()

NTSTATUS NTAPI xHalQueryBusSlots ( IN PBUS_HANDLER  BusHandler,
IN ULONG  BufferSize,
OUT PULONG  SlotNumbers,
OUT PULONG  ReturnedLength 
)

Definition at line 161 of file halstub.c.

165{
166 PAGED_CODE();
167
169}

◆ xHalQuerySystemInformation()

NTSTATUS NTAPI xHalQuerySystemInformation ( IN HAL_QUERY_INFORMATION_CLASS  InformationClass,
IN ULONG  BufferSize,
IN OUT PVOID  Buffer,
OUT PULONG  ReturnedLength 
)

Definition at line 184 of file halstub.c.

188{
189 PAGED_CODE();
190
192}
#define STATUS_INVALID_LEVEL
Definition: ntstatus.h:564

◆ xHalReferenceHandler()

VOID FASTCALL xHalReferenceHandler ( IN PBUS_HANDLER  BusHandler)

Definition at line 114 of file halstub.c.

115{
116 /* Nothing */
117 return;
118}

◆ xHalRegisterBusHandler()

NTSTATUS NTAPI xHalRegisterBusHandler ( IN INTERFACE_TYPE  InterfaceType,
IN BUS_DATA_TYPE  ConfigSpace,
IN ULONG  BusNumber,
IN INTERFACE_TYPE  ParentInterfaceType,
IN ULONG  ParentBusNumber,
IN ULONG  ContextSize,
IN PINSTALL_BUS_HANDLER  InstallCallback,
OUT PBUS_HANDLER BusHandler 
)

Definition at line 204 of file halstub.c.

212{
213 PAGED_CODE();
214
216}

◆ xHalSetSystemInformation()

NTSTATUS NTAPI xHalSetSystemInformation ( IN HAL_SET_INFORMATION_CLASS  InformationClass,
IN ULONG  BufferSize,
IN PVOID  Buffer 
)

Definition at line 173 of file halstub.c.

176{
177 PAGED_CODE();
178
180}

◆ xHalSetWakeAlarm()

VOID NTAPI xHalSetWakeAlarm ( IN ULONGLONG  AlartTime,
IN PTIME_FIELDS  TimeFields 
)

Definition at line 220 of file halstub.c.

222{
223 /* Nothing */
224 return;
225}

◆ xHalSetWakeEnable()

VOID NTAPI xHalSetWakeEnable ( IN BOOLEAN  Enable)

Definition at line 98 of file halstub.c.

99{
100 /* Nothing */
101 return;
102}

◆ xHalStartMirroring()

NTSTATUS NTAPI xHalStartMirroring ( VOID  )

Definition at line 137 of file halstub.c.

138{
139 PAGED_CODE();
140
142}

◆ xHalTranslateBusAddress()

BOOLEAN NTAPI xHalTranslateBusAddress ( IN INTERFACE_TYPE  InterfaceType,
IN ULONG  BusNumber,
IN PHYSICAL_ADDRESS  BusAddress,
IN OUT PULONG  AddressSpace,
OUT PPHYSICAL_ADDRESS  TranslatedAddress 
)

Definition at line 229 of file halstub.c.

234{
235 KeBugCheckEx(HAL_INITIALIZATION_FAILED, 0, 0, 0, 0);
236
237 return FALSE;
238}
VOID NTAPI KeBugCheckEx(_In_ ULONG BugCheckCode, _In_ ULONG_PTR BugCheckParameter1, _In_ ULONG_PTR BugCheckParameter2, _In_ ULONG_PTR BugCheckParameter3, _In_ ULONG_PTR BugCheckParameter4)
Definition: rtlcompat.c:108

◆ xHalVectorToIDTEntry()

UCHAR NTAPI xHalVectorToIDTEntry ( IN ULONG  Vector)

Definition at line 31 of file halstub.c.

32{
33 /* Return the vector */
34 return (UCHAR)Vector;
35}

◆ xKdGetAcpiTablePhase()

PVOID NTAPI xKdGetAcpiTablePhase ( IN struct _LOADER_PARAMETER_BLOCK LoaderBlock,
IN ULONG  Signature 
)

Definition at line 269 of file halstub.c.

271{
272 return NULL;
273}

◆ xKdReleasePciDeviceForDebugging()

NTSTATUS NTAPI xKdReleasePciDeviceForDebugging ( IN OUT PDEBUG_DEVICE_DESCRIPTOR  PciDevice)

Definition at line 262 of file halstub.c.

263{
265}

◆ xKdSetupPciDeviceForDebugging()

NTSTATUS NTAPI xKdSetupPciDeviceForDebugging ( IN PVOID LoaderBlock  OPTIONAL,
IN OUT PDEBUG_DEVICE_DESCRIPTOR  PciDevice 
)

Definition at line 254 of file halstub.c.

256{
258}

◆ xKdUnmapVirtualAddress()

VOID NTAPI xKdUnmapVirtualAddress ( IN PVOID  VirtualAddress,
IN ULONG  NumberPages,
IN BOOLEAN  FlushCurrentTLB 
)

Definition at line 286 of file halstub.c.

289{
290 /* Nothing */
291 return;
292}