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Implemented IOCTL_DISK_GET_PARTITION_INFO.
Removed internal disk size limit. svn path=/trunk/; revision=2706
This commit is contained in:
Eric Kohl
parent
c08d8bcfb9
commit
724d0e6c2f
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@ -1,4 +1,4 @@
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/* $Id: ide.c,v 1.51 2002/02/08 02:57:08 chorns Exp $
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/* $Id: ide.c,v 1.52 2002/03/12 20:16:53 ekohl Exp $
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*
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* IDE.C - IDE Disk driver
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* written by Rex Jolliff
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@ -78,7 +78,7 @@
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#define VERSION "V0.1.5"
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/* uncomment the following line to enable the secondary ide channel */
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//#define ENABLE_SECONDARY_IDE_CHANNEL
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#define ENABLE_SECONDARY_IDE_CHANNEL
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// ------------------------------------------------------- File Static Data
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@ -953,12 +953,19 @@ IDECreateDiskDevice(IN PDRIVER_OBJECT DriverObject,
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DeviceExtension->LogicalHeads = DrvParms->LogicalHeads;
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DeviceExtension->LogicalCylinders =
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(DrvParms->Capabilities & IDE_DRID_LBA_SUPPORTED) ? DrvParms->TMCylinders : DrvParms->LogicalCyls;
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DeviceExtension->Offset = 0;
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DeviceExtension->Size = SectorCount;
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DPRINT("%wZ: offset %lu size %lu \n",
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DeviceExtension->StartingOffset.QuadPart = 0;
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DeviceExtension->PartitionLength.QuadPart = (ULONGLONG)SectorCount *
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(ULONGLONG)DrvParms->BytesPerSector;
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DeviceExtension->HiddenSectors = 0;
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DeviceExtension->PartitionNumber = 0;
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DeviceExtension->PartitionType = 0;
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DeviceExtension->BootIndicator = FALSE;
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DPRINT("%wZ: offset %I64d length %I64d\n",
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&DeviceName,
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DeviceExtension->Offset,
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DeviceExtension->Size);
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DeviceExtension->StartingOffset.QuadPart,
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DeviceExtension->PartitionLength.QuadPart);
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/* Initialize the DPC object here */
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IoInitializeDpcRequest(*DeviceObject,
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@ -1061,18 +1068,24 @@ IDECreatePartitionDevice(IN PDRIVER_OBJECT DriverObject,
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DeviceExtension->LogicalCylinders =
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(DrvParms->Capabilities & IDE_DRID_LBA_SUPPORTED) ? DrvParms->TMCylinders : DrvParms->LogicalCyls;
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DeviceExtension->Offset = PartitionInfo->StartingOffset.QuadPart / 512; /* DrvParms->BytesPerSector */
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DeviceExtension->Size = PartitionInfo->PartitionLength.QuadPart / 512; /* DrvParms->BytesPerSector */
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DeviceExtension->StartingOffset = PartitionInfo->StartingOffset;
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DeviceExtension->PartitionLength = PartitionInfo->PartitionLength;
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DeviceExtension->HiddenSectors = PartitionInfo->HiddenSectors;
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DeviceExtension->PartitionNumber = PartitionInfo->PartitionNumber;
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DeviceExtension->PartitionType = PartitionInfo->PartitionType;
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DeviceExtension->BootIndicator = PartitionInfo->BootIndicator;
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DPRINT("%wZ: offset %lu size %lu \n",
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DPRINT("%wZ: offset %I64d size %I64d\n",
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&DeviceName,
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DeviceExtension->Offset,
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DeviceExtension->Size);
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DeviceExtension->StartingOffset.QuadPart,
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DeviceExtension->PartitionLength.QuadPart);
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/* Initialize the DPC object here */
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IoInitializeDpcRequest(*DeviceObject, IDEDpcForIsr);
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DPRINT("%wZ %luMB\n", &DeviceName, DeviceExtension->Size / 2048);
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DPRINT("%wZ %I64dMB\n",
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&DeviceName,
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DeviceExtension->PartitionLength.QuadPart >> 20);
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/* assign arc name */
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swprintf(ArcNameBuffer,
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@ -1307,57 +1320,38 @@ IDEDispatchOpenClose(IN PDEVICE_OBJECT pDO,
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// NTSTATUS
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//
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static NTSTATUS
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STDCALL IDEDispatchReadWrite(IN PDEVICE_OBJECT pDO,
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IN PIRP Irp)
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static NTSTATUS STDCALL
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IDEDispatchReadWrite(IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp)
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{
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ULONG IrpInsertKey;
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LARGE_INTEGER AdjustedOffset, AdjustedExtent, PartitionExtent, InsertKeyLI;
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PIO_STACK_LOCATION IrpStack;
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PIDE_DEVICE_EXTENSION DeviceExtension;
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ULONG IrpInsertKey;
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LARGE_INTEGER AdjustedOffset, AdjustedExtent, PartitionExtent, InsertKeyLI;
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PIO_STACK_LOCATION IrpStack;
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PIDE_DEVICE_EXTENSION DeviceExtension;
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IrpStack = IoGetCurrentIrpStackLocation(Irp);
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DeviceExtension = (PIDE_DEVICE_EXTENSION)pDO->DeviceExtension;
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DeviceExtension = (PIDE_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
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// Validate operation parameters
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AdjustedOffset = RtlEnlargedIntegerMultiply(DeviceExtension->Offset,
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DeviceExtension->BytesPerSector);
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DPRINT("Offset:%ld * BytesPerSector:%ld = AdjOffset:%ld:%ld\n",
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DeviceExtension->Offset,
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DeviceExtension->BytesPerSector,
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(unsigned long) AdjustedOffset.u.HighPart,
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(unsigned long) AdjustedOffset.u.LowPart);
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DPRINT("AdjOffset:%ld:%ld + ByteOffset:%ld:%ld\n",
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(unsigned long) AdjustedOffset.u.HighPart,
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(unsigned long) AdjustedOffset.u.LowPart,
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(unsigned long) IrpStack->Parameters.Read.ByteOffset.u.HighPart,
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(unsigned long) IrpStack->Parameters.Read.ByteOffset.u.LowPart);
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AdjustedOffset = RtlLargeIntegerAdd(AdjustedOffset,
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IrpStack->Parameters.Read.ByteOffset);
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DPRINT(" = AdjOffset:%ld:%ld\n",
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(unsigned long) AdjustedOffset.u.HighPart,
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(unsigned long) AdjustedOffset.u.LowPart);
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AdjustedExtent = RtlLargeIntegerAdd(AdjustedOffset,
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RtlConvertLongToLargeInteger(IrpStack->Parameters.Read.Length));
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DPRINT("AdjOffset:%ld:%ld + Length:%ld = AdjExtent:%ld:%ld\n",
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(unsigned long) AdjustedOffset.u.HighPart,
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(unsigned long) AdjustedOffset.u.LowPart,
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IrpStack->Parameters.Read.Length,
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(unsigned long) AdjustedExtent.u.HighPart,
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(unsigned long) AdjustedExtent.u.LowPart);
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/*FIXME: this assumption will fail on drives bigger than 1TB */
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PartitionExtent.QuadPart = DeviceExtension->Offset + DeviceExtension->Size;
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PartitionExtent = RtlExtendedIntegerMultiply(PartitionExtent,
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DeviceExtension->BytesPerSector);
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AdjustedOffset.QuadPart = DeviceExtension->StartingOffset.QuadPart +
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IrpStack->Parameters.Read.ByteOffset.QuadPart;
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DPRINT("AdjustedOffset: %I64x\n", AdjustedOffset.QuadPart);
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AdjustedExtent.QuadPart = AdjustedOffset.QuadPart +
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(ULONGLONG)IrpStack->Parameters.Read.Length;
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DPRINT("AdjustedExtent: %I64x\n", AdjustedExtent.QuadPart);
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PartitionExtent.QuadPart = DeviceExtension->StartingOffset.QuadPart +
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DeviceExtension->PartitionLength.QuadPart;
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DPRINT("PartitionExtent: %I64x\n", PartitionExtent.QuadPart);
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if ((AdjustedExtent.QuadPart > PartitionExtent.QuadPart) ||
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(IrpStack->Parameters.Read.Length & (DeviceExtension->BytesPerSector - 1)))
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(IrpStack->Parameters.Read.Length & (DeviceExtension->BytesPerSector - 1)))
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{
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DPRINT("Request failed on bad parameters\n",0);
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DPRINT("AdjustedExtent=%d:%d PartitionExtent=%d:%d ReadLength=%d\n",
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(unsigned int) AdjustedExtent.u.HighPart,
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(unsigned int) AdjustedExtent.u.LowPart,
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(unsigned int) PartitionExtent.u.HighPart,
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(unsigned int) PartitionExtent.u.LowPart,
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DPRINT("AdjustedExtent=%I64x PartitionExtent=%I64x ReadLength=%lx\n",
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AdjustedExtent.QuadPart,
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PartitionExtent.QuadPart,
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IrpStack->Parameters.Read.Length);
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Irp->IoStatus.Status = STATUS_INVALID_PARAMETER;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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@ -1369,10 +1363,10 @@ DPRINT("AdjOffset:%ld:%ld + Length:%ld = AdjExtent:%ld:%ld\n",
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// Start the packet and insert the request in order of sector offset
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assert(DeviceExtension->BytesPerSector == 512);
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InsertKeyLI = RtlLargeIntegerShiftRight(IrpStack->Parameters.Read.ByteOffset, 9);
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InsertKeyLI.QuadPart = IrpStack->Parameters.Read.ByteOffset.QuadPart >> 9;
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IrpInsertKey = InsertKeyLI.u.LowPart;
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IoStartPacket(DeviceExtension->DeviceObject, Irp, &IrpInsertKey, NULL);
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IoStartPacket(DeviceObject, Irp, &IrpInsertKey, NULL);
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DPRINT("Returning STATUS_PENDING\n");
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return STATUS_PENDING;
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}
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@ -1439,6 +1433,37 @@ DPRINT("DiskDeviceExtension->BytesPerSector %lu\n", DiskDeviceExtension->BytesPe
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break;
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case IOCTL_DISK_GET_PARTITION_INFO:
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DPRINT("IOCTL_DISK_GET_PARTITION_INFO\n");
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if (IrpStack->Parameters.DeviceIoControl.OutputBufferLength <
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sizeof(PARTITION_INFORMATION))
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{
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Irp->IoStatus.Status = STATUS_INFO_LENGTH_MISMATCH;
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}
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else if (DeviceExtension->PartitionNumber == 0)
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{
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Irp->IoStatus.Status = STATUS_INVALID_DEVICE_REQUEST;
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}
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else
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{
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PPARTITION_INFORMATION PartitionInfo;
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PartitionInfo = (PPARTITION_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
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PartitionInfo->PartitionType = DeviceExtension->PartitionType;
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PartitionInfo->StartingOffset = DeviceExtension->StartingOffset;
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PartitionInfo->PartitionLength = DeviceExtension->PartitionLength;
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PartitionInfo->HiddenSectors = DeviceExtension->HiddenSectors;
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PartitionInfo->PartitionNumber = DeviceExtension->PartitionNumber;
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PartitionInfo->BootIndicator = DeviceExtension->BootIndicator;
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PartitionInfo->RewritePartition = FALSE;
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PartitionInfo->RecognizedPartition =
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IsRecognizedPartition(DeviceExtension->PartitionType);
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Irp->IoStatus.Status = STATUS_SUCCESS;
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Irp->IoStatus.Information = sizeof(PARTITION_INFORMATION);
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}
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break;
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case IOCTL_DISK_SET_PARTITION_INFO:
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RC = STATUS_INVALID_DEVICE_REQUEST;
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Irp->IoStatus.Status = RC;
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@ -139,8 +139,13 @@ typedef struct _IDE_DEVICE_EXTENSION
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int LogicalCylinders;
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int SectorsPerLogCyl;
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int SectorsPerLogTrk;
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int Offset;
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int Size;
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LARGE_INTEGER StartingOffset;
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LARGE_INTEGER PartitionLength;
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ULONG HiddenSectors;
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ULONG PartitionNumber;
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UCHAR PartitionType;
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BOOLEAN BootIndicator;
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int Operation;
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ULONG BytesRequested;
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