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Widnows driver: use correct value for HiddenSectors field in structures to match read MBR disks

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This commit is contained in:
Mounir IDRASSI
2025-02-03 23:48:51 +01:00
parent 6cd32af1c1
commit e73ea7193e
1 changed files with 4 additions and 4 deletions
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8
src/Driver/Ntdriver.c
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@@ -1228,7 +1228,7 @@ NTSTATUS ProcessVolumeDeviceControlIrp (PDEVICE_OBJECT DeviceObject, PEXTENSION
outputBuffer->StartingOffset.QuadPart = BYTES_PER_MB; // Set offset to 1MB to emulate the partition offset on a real MBR disk outputBuffer->StartingOffset.QuadPart = BYTES_PER_MB; // Set offset to 1MB to emulate the partition offset on a real MBR disk
outputBuffer->PartitionLength.QuadPart= Extension->DiskLength; outputBuffer->PartitionLength.QuadPart= Extension->DiskLength;
outputBuffer->PartitionNumber = 1; outputBuffer->PartitionNumber = 1;
outputBuffer->HiddenSectors = 0; outputBuffer->HiddenSectors = BYTES_PER_MB / Extension->BytesPerSector;
Irp->IoStatus.Status = STATUS_SUCCESS; Irp->IoStatus.Status = STATUS_SUCCESS;
Irp->IoStatus.Information = sizeof (PARTITION_INFORMATION); Irp->IoStatus.Information = sizeof (PARTITION_INFORMATION);
} }
@@ -1248,7 +1248,7 @@ NTSTATUS ProcessVolumeDeviceControlIrp (PDEVICE_OBJECT DeviceObject, PEXTENSION
outputBuffer->Mbr.PartitionType = Extension->PartitionType; outputBuffer->Mbr.PartitionType = Extension->PartitionType;
outputBuffer->Mbr.BootIndicator = FALSE; outputBuffer->Mbr.BootIndicator = FALSE;
outputBuffer->Mbr.RecognizedPartition = TRUE; outputBuffer->Mbr.RecognizedPartition = TRUE;
outputBuffer->Mbr.HiddenSectors = 0; outputBuffer->Mbr.HiddenSectors = BYTES_PER_MB / Extension->BytesPerSector;
Irp->IoStatus.Status = STATUS_SUCCESS; Irp->IoStatus.Status = STATUS_SUCCESS;
Irp->IoStatus.Information = sizeof (PARTITION_INFORMATION_EX); Irp->IoStatus.Information = sizeof (PARTITION_INFORMATION_EX);
} }
@@ -1272,7 +1272,7 @@ NTSTATUS ProcessVolumeDeviceControlIrp (PDEVICE_OBJECT DeviceObject, PEXTENSION
outputBuffer->PartitionEntry->StartingOffset.QuadPart = BYTES_PER_MB; // Set offset to 1MB to emulate the partition offset on a real MBR disk outputBuffer->PartitionEntry->StartingOffset.QuadPart = BYTES_PER_MB; // Set offset to 1MB to emulate the partition offset on a real MBR disk
outputBuffer->PartitionEntry->PartitionLength.QuadPart = Extension->DiskLength; outputBuffer->PartitionEntry->PartitionLength.QuadPart = Extension->DiskLength;
outputBuffer->PartitionEntry->PartitionNumber = 1; outputBuffer->PartitionEntry->PartitionNumber = 1;
outputBuffer->PartitionEntry->HiddenSectors = 0; outputBuffer->PartitionEntry->HiddenSectors = BYTES_PER_MB / Extension->BytesPerSector;
Irp->IoStatus.Status = STATUS_SUCCESS; Irp->IoStatus.Status = STATUS_SUCCESS;
Irp->IoStatus.Information = sizeof (DRIVE_LAYOUT_INFORMATION); Irp->IoStatus.Information = sizeof (DRIVE_LAYOUT_INFORMATION);
@@ -1307,7 +1307,7 @@ NTSTATUS ProcessVolumeDeviceControlIrp (PDEVICE_OBJECT DeviceObject, PEXTENSION
outputBuffer->PartitionEntry->StartingOffset.QuadPart = BYTES_PER_MB; // Set offset to 1MB to emulate the partition offset on a real MBR disk outputBuffer->PartitionEntry->StartingOffset.QuadPart = BYTES_PER_MB; // Set offset to 1MB to emulate the partition offset on a real MBR disk
outputBuffer->PartitionEntry->PartitionLength.QuadPart = Extension->DiskLength; outputBuffer->PartitionEntry->PartitionLength.QuadPart = Extension->DiskLength;
outputBuffer->PartitionEntry->PartitionNumber = 1; outputBuffer->PartitionEntry->PartitionNumber = 1;
outputBuffer->PartitionEntry->Mbr.HiddenSectors = 0; outputBuffer->PartitionEntry->Mbr.HiddenSectors = BYTES_PER_MB / Extension->BytesPerSector;
outputBuffer->PartitionEntry->Mbr.PartitionType = Extension->PartitionType; outputBuffer->PartitionEntry->Mbr.PartitionType = Extension->PartitionType;
Irp->IoStatus.Status = STATUS_SUCCESS; Irp->IoStatus.Status = STATUS_SUCCESS;